Fixed MTP to work with TWRP

drivers/media/usb/Kconfig

@@ -0,0 +1,65 @@
+if USB && MEDIA_SUPPORT
+
+menuconfig MEDIA_USB_SUPPORT
+	bool "Media USB Adapters"
+	help
+	  Enable media drivers for USB bus.
+	  If you have such devices, say Y.
+
+if MEDIA_USB_SUPPORT
+
+if MEDIA_CAMERA_SUPPORT
+	comment "Webcam devices"
+source "drivers/media/usb/uvc/Kconfig"
+source "drivers/media/usb/gspca/Kconfig"
+source "drivers/media/usb/pwc/Kconfig"
+source "drivers/media/usb/cpia2/Kconfig"
+source "drivers/media/usb/zr364xx/Kconfig"
+source "drivers/media/usb/stkwebcam/Kconfig"
+source "drivers/media/usb/s2255/Kconfig"
+source "drivers/media/usb/usbtv/Kconfig"
+endif
+
+if MEDIA_ANALOG_TV_SUPPORT
+	comment "Analog TV USB devices"
+source "drivers/media/usb/pvrusb2/Kconfig"
+source "drivers/media/usb/hdpvr/Kconfig"
+source "drivers/media/usb/tlg2300/Kconfig"
+source "drivers/media/usb/usbvision/Kconfig"
+source "drivers/media/usb/stk1160/Kconfig"
+source "drivers/media/usb/go7007/Kconfig"
+endif
+
+if (MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT)
+	comment "Analog/digital TV USB devices"
+source "drivers/media/usb/au0828/Kconfig"
+source "drivers/media/usb/cx231xx/Kconfig"
+source "drivers/media/usb/tm6000/Kconfig"
+endif
+
+
+if I2C && MEDIA_DIGITAL_TV_SUPPORT
+	comment "Digital TV USB devices"
+source "drivers/media/usb/dvb-usb/Kconfig"
+source "drivers/media/usb/dvb-usb-v2/Kconfig"
+source "drivers/media/usb/ttusb-budget/Kconfig"
+source "drivers/media/usb/ttusb-dec/Kconfig"
+source "drivers/media/usb/siano/Kconfig"
+source "drivers/media/usb/b2c2/Kconfig"
+source "drivers/media/usb/as102/Kconfig"
+endif
+
+if (MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT)
+	comment "Webcam, TV (analog/digital) USB devices"
+source "drivers/media/usb/em28xx/Kconfig"
+endif
+
+if MEDIA_SDR_SUPPORT
+	comment "Software defined radio USB devices"
+source "drivers/media/usb/airspy/Kconfig"
+source "drivers/media/usb/hackrf/Kconfig"
+source "drivers/media/usb/msi2500/Kconfig"
+endif
+
+endif #MEDIA_USB_SUPPORT
+endif #USB

drivers/media/usb/Makefile

@@ -0,0 +1,27 @@
+#
+# Makefile for the USB media device drivers
+#
+
+# DVB USB-only drivers
+obj-y += ttusb-dec/ ttusb-budget/ dvb-usb/ dvb-usb-v2/ siano/ b2c2/
+obj-y += zr364xx/ stkwebcam/ s2255/
+
+obj-$(CONFIG_USB_VIDEO_CLASS)	+= uvc/
+obj-$(CONFIG_USB_GSPCA)         += gspca/
+obj-$(CONFIG_USB_PWC)           += pwc/
+obj-$(CONFIG_USB_AIRSPY)        += airspy/
+obj-$(CONFIG_USB_HACKRF)        += hackrf/
+obj-$(CONFIG_USB_MSI2500)       += msi2500/
+obj-$(CONFIG_VIDEO_CPIA2) += cpia2/
+obj-$(CONFIG_VIDEO_AU0828) += au0828/
+obj-$(CONFIG_VIDEO_HDPVR)	+= hdpvr/
+obj-$(CONFIG_VIDEO_PVRUSB2) += pvrusb2/
+obj-$(CONFIG_VIDEO_TLG2300) += tlg2300/
+obj-$(CONFIG_VIDEO_USBVISION) += usbvision/
+obj-$(CONFIG_VIDEO_STK1160) += stk1160/
+obj-$(CONFIG_VIDEO_CX231XX) += cx231xx/
+obj-$(CONFIG_VIDEO_TM6000) += tm6000/
+obj-$(CONFIG_VIDEO_EM28XX) += em28xx/
+obj-$(CONFIG_VIDEO_USBTV) += usbtv/
+obj-$(CONFIG_VIDEO_GO7007) += go7007/
+obj-$(CONFIG_DVB_AS102) += as102/

drivers/media/usb/airspy/Kconfig

@@ -0,0 +1,10 @@
+config USB_AIRSPY
+	tristate "AirSpy"
+	depends on VIDEO_V4L2
+	select VIDEOBUF2_VMALLOC
+	---help---
+	  This is a video4linux2 driver for AirSpy SDR device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called airspy
+

drivers/media/usb/airspy/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_USB_AIRSPY)              += airspy.o

drivers/media/usb/as102/Kconfig

@@ -0,0 +1,8 @@
+config DVB_AS102
+	tristate "Abilis AS102 DVB receiver"
+	depends on DVB_CORE && USB && I2C && INPUT
+	select FW_LOADER
+	help
+	  Choose Y or M here if you have a device containing an AS102
+
+	  To compile this driver as a module, choose M here

drivers/media/usb/as102/Makefile

@@ -0,0 +1,7 @@
+dvb-as102-objs := as102_drv.o as102_fw.o as10x_cmd.o as10x_cmd_stream.o \
+		  as102_usb_drv.o as10x_cmd_cfg.o
+
+obj-$(CONFIG_DVB_AS102) += dvb-as102.o
+
+ccflags-y += -Idrivers/media/dvb-core
+ccflags-y += -Idrivers/media/dvb-frontends

drivers/media/usb/as102/as102_drv.c

@@ -0,0 +1,401 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/kref.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+
+/* header file for usb device driver*/
+#include "as102_drv.h"
+#include "as10x_cmd.h"
+#include "as102_fe.h"
+#include "as102_fw.h"
+#include "dvbdev.h"
+
+int dual_tuner;
+module_param_named(dual_tuner, dual_tuner, int, 0644);
+MODULE_PARM_DESC(dual_tuner, "Activate Dual-Tuner config (default: off)");
+
+static int fw_upload = 1;
+module_param_named(fw_upload, fw_upload, int, 0644);
+MODULE_PARM_DESC(fw_upload, "Turn on/off default FW upload (default: on)");
+
+static int pid_filtering;
+module_param_named(pid_filtering, pid_filtering, int, 0644);
+MODULE_PARM_DESC(pid_filtering, "Activate HW PID filtering (default: off)");
+
+static int ts_auto_disable;
+module_param_named(ts_auto_disable, ts_auto_disable, int, 0644);
+MODULE_PARM_DESC(ts_auto_disable, "Stream Auto Enable on FW (default: off)");
+
+int elna_enable = 1;
+module_param_named(elna_enable, elna_enable, int, 0644);
+MODULE_PARM_DESC(elna_enable, "Activate eLNA (default: on)");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static void as102_stop_stream(struct as102_dev_t *dev)
+{
+	struct as10x_bus_adapter_t *bus_adap;
+
+	if (dev != NULL)
+		bus_adap = &dev->bus_adap;
+	else
+		return;
+
+	if (bus_adap->ops->stop_stream != NULL)
+		bus_adap->ops->stop_stream(dev);
+
+	if (ts_auto_disable) {
+		if (mutex_lock_interruptible(&dev->bus_adap.lock))
+			return;
+
+		if (as10x_cmd_stop_streaming(bus_adap) < 0)
+			dev_dbg(&dev->bus_adap.usb_dev->dev,
+				"as10x_cmd_stop_streaming failed\n");
+
+		mutex_unlock(&dev->bus_adap.lock);
+	}
+}
+
+static int as102_start_stream(struct as102_dev_t *dev)
+{
+	struct as10x_bus_adapter_t *bus_adap;
+	int ret = -EFAULT;
+
+	if (dev != NULL)
+		bus_adap = &dev->bus_adap;
+	else
+		return ret;
+
+	if (bus_adap->ops->start_stream != NULL)
+		ret = bus_adap->ops->start_stream(dev);
+
+	if (ts_auto_disable) {
+		if (mutex_lock_interruptible(&dev->bus_adap.lock))
+			return -EFAULT;
+
+		ret = as10x_cmd_start_streaming(bus_adap);
+
+		mutex_unlock(&dev->bus_adap.lock);
+	}
+
+	return ret;
+}
+
+static int as10x_pid_filter(struct as102_dev_t *dev,
+			    int index, u16 pid, int onoff) {
+
+	struct as10x_bus_adapter_t *bus_adap = &dev->bus_adap;
+	int ret = -EFAULT;
+
+	if (mutex_lock_interruptible(&dev->bus_adap.lock)) {
+		dev_dbg(&dev->bus_adap.usb_dev->dev,
+			"amutex_lock_interruptible(lock) failed !\n");
+		return -EBUSY;
+	}
+
+	switch (onoff) {
+	case 0:
+		ret = as10x_cmd_del_PID_filter(bus_adap, (uint16_t) pid);
+		dev_dbg(&dev->bus_adap.usb_dev->dev,
+			"DEL_PID_FILTER([%02d] 0x%04x) ret = %d\n",
+			index, pid, ret);
+		break;
+	case 1:
+	{
+		struct as10x_ts_filter filter;
+
+		filter.type = TS_PID_TYPE_TS;
+		filter.idx = 0xFF;
+		filter.pid = pid;
+
+		ret = as10x_cmd_add_PID_filter(bus_adap, &filter);
+		dev_dbg(&dev->bus_adap.usb_dev->dev,
+			"ADD_PID_FILTER([%02d -> %02d], 0x%04x) ret = %d\n",
+			index, filter.idx, filter.pid, ret);
+		break;
+	}
+	}
+
+	mutex_unlock(&dev->bus_adap.lock);
+	return ret;
+}
+
+static int as102_dvb_dmx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+	int ret = 0;
+	struct dvb_demux *demux = dvbdmxfeed->demux;
+	struct as102_dev_t *as102_dev = demux->priv;
+
+	if (mutex_lock_interruptible(&as102_dev->sem))
+		return -ERESTARTSYS;
+
+	if (pid_filtering)
+		as10x_pid_filter(as102_dev, dvbdmxfeed->index,
+				 dvbdmxfeed->pid, 1);
+
+	if (as102_dev->streaming++ == 0)
+		ret = as102_start_stream(as102_dev);
+
+	mutex_unlock(&as102_dev->sem);
+	return ret;
+}
+
+static int as102_dvb_dmx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
+{
+	struct dvb_demux *demux = dvbdmxfeed->demux;
+	struct as102_dev_t *as102_dev = demux->priv;
+
+	if (mutex_lock_interruptible(&as102_dev->sem))
+		return -ERESTARTSYS;
+
+	if (--as102_dev->streaming == 0)
+		as102_stop_stream(as102_dev);
+
+	if (pid_filtering)
+		as10x_pid_filter(as102_dev, dvbdmxfeed->index,
+				 dvbdmxfeed->pid, 0);
+
+	mutex_unlock(&as102_dev->sem);
+	return 0;
+}
+
+static int as102_set_tune(void *priv, struct as10x_tune_args *tune_args)
+{
+	struct as10x_bus_adapter_t *bus_adap = priv;
+	int ret;
+
+	/* Set frontend arguments */
+	if (mutex_lock_interruptible(&bus_adap->lock))
+		return -EBUSY;
+
+	ret =  as10x_cmd_set_tune(bus_adap, tune_args);
+	if (ret != 0)
+		dev_dbg(&bus_adap->usb_dev->dev,
+			"as10x_cmd_set_tune failed. (err = %d)\n", ret);
+
+	mutex_unlock(&bus_adap->lock);
+
+	return ret;
+}
+
+static int as102_get_tps(void *priv, struct as10x_tps *tps)
+{
+	struct as10x_bus_adapter_t *bus_adap = priv;
+	int ret;
+
+	if (mutex_lock_interruptible(&bus_adap->lock))
+		return -EBUSY;
+
+	/* send abilis command: GET_TPS */
+	ret = as10x_cmd_get_tps(bus_adap, tps);
+
+	mutex_unlock(&bus_adap->lock);
+
+	return ret;
+}
+
+static int as102_get_status(void *priv, struct as10x_tune_status *tstate)
+{
+	struct as10x_bus_adapter_t *bus_adap = priv;
+	int ret;
+
+	if (mutex_lock_interruptible(&bus_adap->lock))
+		return -EBUSY;
+
+	/* send abilis command: GET_TUNE_STATUS */
+	ret = as10x_cmd_get_tune_status(bus_adap, tstate);
+	if (ret < 0) {
+		dev_dbg(&bus_adap->usb_dev->dev,
+			"as10x_cmd_get_tune_status failed (err = %d)\n",
+			ret);
+	}
+
+	mutex_unlock(&bus_adap->lock);
+
+	return ret;
+}
+
+static int as102_get_stats(void *priv, struct as10x_demod_stats *demod_stats)
+{
+	struct as10x_bus_adapter_t *bus_adap = priv;
+	int ret;
+
+	if (mutex_lock_interruptible(&bus_adap->lock))
+		return -EBUSY;
+
+	/* send abilis command: GET_TUNE_STATUS */
+	ret = as10x_cmd_get_demod_stats(bus_adap, demod_stats);
+	if (ret < 0) {
+		dev_dbg(&bus_adap->usb_dev->dev,
+			"as10x_cmd_get_demod_stats failed (probably not tuned)\n");
+	} else {
+		dev_dbg(&bus_adap->usb_dev->dev,
+			"demod status: fc: 0x%08x, bad fc: 0x%08x, bytes corrected: 0x%08x , MER: 0x%04x\n",
+			demod_stats->frame_count,
+			demod_stats->bad_frame_count,
+			demod_stats->bytes_fixed_by_rs,
+			demod_stats->mer);
+	}
+	mutex_unlock(&bus_adap->lock);
+
+	return ret;
+}
+
+static int as102_stream_ctrl(void *priv, int acquire, uint32_t elna_cfg)
+{
+	struct as10x_bus_adapter_t *bus_adap = priv;
+	int ret;
+
+	if (mutex_lock_interruptible(&bus_adap->lock))
+		return -EBUSY;
+
+	if (acquire) {
+		if (elna_enable)
+			as10x_cmd_set_context(bus_adap,
+					      CONTEXT_LNA, elna_cfg);
+
+		ret = as10x_cmd_turn_on(bus_adap);
+	} else {
+		ret = as10x_cmd_turn_off(bus_adap);
+	}
+
+	mutex_unlock(&bus_adap->lock);
+
+	return ret;
+}
+
+static const struct as102_fe_ops as102_fe_ops = {
+	.set_tune = as102_set_tune,
+	.get_tps  = as102_get_tps,
+	.get_status = as102_get_status,
+	.get_stats = as102_get_stats,
+	.stream_ctrl = as102_stream_ctrl,
+};
+
+int as102_dvb_register(struct as102_dev_t *as102_dev)
+{
+	struct device *dev = &as102_dev->bus_adap.usb_dev->dev;
+	int ret;
+
+	ret = dvb_register_adapter(&as102_dev->dvb_adap,
+			   as102_dev->name, THIS_MODULE,
+			   dev, adapter_nr);
+	if (ret < 0) {
+		dev_err(dev, "%s: dvb_register_adapter() failed: %d\n",
+			__func__, ret);
+		return ret;
+	}
+
+	as102_dev->dvb_dmx.priv = as102_dev;
+	as102_dev->dvb_dmx.filternum = pid_filtering ? 16 : 256;
+	as102_dev->dvb_dmx.feednum = 256;
+	as102_dev->dvb_dmx.start_feed = as102_dvb_dmx_start_feed;
+	as102_dev->dvb_dmx.stop_feed = as102_dvb_dmx_stop_feed;
+
+	as102_dev->dvb_dmx.dmx.capabilities = DMX_TS_FILTERING |
+					      DMX_SECTION_FILTERING;
+
+	as102_dev->dvb_dmxdev.filternum = as102_dev->dvb_dmx.filternum;
+	as102_dev->dvb_dmxdev.demux = &as102_dev->dvb_dmx.dmx;
+	as102_dev->dvb_dmxdev.capabilities = 0;
+
+	ret = dvb_dmx_init(&as102_dev->dvb_dmx);
+	if (ret < 0) {
+		dev_err(dev, "%s: dvb_dmx_init() failed: %d\n", __func__, ret);
+		goto edmxinit;
+	}
+
+	ret = dvb_dmxdev_init(&as102_dev->dvb_dmxdev, &as102_dev->dvb_adap);
+	if (ret < 0) {
+		dev_err(dev, "%s: dvb_dmxdev_init() failed: %d\n",
+			__func__, ret);
+		goto edmxdinit;
+	}
+
+	/* Attach the frontend */
+	as102_dev->dvb_fe = dvb_attach(as102_attach, as102_dev->name,
+				       &as102_fe_ops,
+				       &as102_dev->bus_adap,
+				       as102_dev->elna_cfg);
+	if (!as102_dev->dvb_fe) {
+		dev_err(dev, "%s: as102_attach() failed: %d",
+		    __func__, ret);
+		goto efereg;
+	}
+
+	ret =  dvb_register_frontend(&as102_dev->dvb_adap, as102_dev->dvb_fe);
+	if (ret < 0) {
+		dev_err(dev, "%s: as102_dvb_register_frontend() failed: %d",
+		    __func__, ret);
+		goto efereg;
+	}
+
+	/* init bus mutex for token locking */
+	mutex_init(&as102_dev->bus_adap.lock);
+
+	/* init start / stop stream mutex */
+	mutex_init(&as102_dev->sem);
+
+	/*
+	 * try to load as102 firmware. If firmware upload failed, we'll be
+	 * able to upload it later.
+	 */
+	if (fw_upload)
+		try_then_request_module(as102_fw_upload(&as102_dev->bus_adap),
+				"firmware_class");
+
+	pr_info("Registered device %s", as102_dev->name);
+	return 0;
+
+efereg:
+	dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
+edmxdinit:
+	dvb_dmx_release(&as102_dev->dvb_dmx);
+edmxinit:
+	dvb_unregister_adapter(&as102_dev->dvb_adap);
+	return ret;
+}
+
+void as102_dvb_unregister(struct as102_dev_t *as102_dev)
+{
+	/* unregister as102 frontend */
+	dvb_unregister_frontend(as102_dev->dvb_fe);
+
+	/* detach frontend */
+	dvb_frontend_detach(as102_dev->dvb_fe);
+
+	/* unregister demux device */
+	dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
+	dvb_dmx_release(&as102_dev->dvb_dmx);
+
+	/* unregister dvb adapter */
+	dvb_unregister_adapter(&as102_dev->dvb_adap);
+
+	pr_info("Unregistered device %s", as102_dev->name);
+}
+
+module_usb_driver(as102_usb_driver);
+
+/* modinfo details */
+MODULE_DESCRIPTION(DRIVER_FULL_NAME);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pierrick Hascoet <pierrick.hascoet@abilis.com>");

drivers/media/usb/as102/as102_drv.h

@@ -0,0 +1,83 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _AS102_DRV_H
+#define _AS102_DRV_H
+#include <linux/usb.h>
+#include <dvb_demux.h>
+#include <dvb_frontend.h>
+#include <dmxdev.h>
+#include "as10x_handle.h"
+#include "as10x_cmd.h"
+#include "as102_usb_drv.h"
+
+#define DRIVER_FULL_NAME "Abilis Systems as10x usb driver"
+#define DRIVER_NAME "as10x_usb"
+
+#define debug	as102_debug
+extern struct usb_driver as102_usb_driver;
+extern int elna_enable;
+
+#define AS102_DEVICE_MAJOR	192
+
+#define AS102_USB_BUF_SIZE	512
+#define MAX_STREAM_URB		32
+
+struct as10x_bus_adapter_t {
+	struct usb_device *usb_dev;
+	/* bus token lock */
+	struct mutex lock;
+	/* low level interface for bus adapter */
+	union as10x_bus_token_t {
+		/* usb token */
+		struct as10x_usb_token_cmd_t usb;
+	} token;
+
+	/* token cmd xfer id */
+	uint16_t cmd_xid;
+
+	/* as10x command and response for dvb interface*/
+	struct as10x_cmd_t *cmd, *rsp;
+
+	/* bus adapter private ops callback */
+	struct as102_priv_ops_t *ops;
+};
+
+struct as102_dev_t {
+	const char *name;
+	struct as10x_bus_adapter_t bus_adap;
+	struct list_head device_entry;
+	struct kref kref;
+	uint8_t elna_cfg;
+
+	struct dvb_adapter dvb_adap;
+	struct dvb_frontend *dvb_fe;
+	struct dvb_demux dvb_dmx;
+	struct dmxdev dvb_dmxdev;
+
+	/* timer handle to trig ts stream download */
+	struct timer_list timer_handle;
+
+	struct mutex sem;
+	dma_addr_t dma_addr;
+	void *stream;
+	int streaming;
+	struct urb *stream_urb[MAX_STREAM_URB];
+};
+
+int as102_dvb_register(struct as102_dev_t *dev);
+void as102_dvb_unregister(struct as102_dev_t *dev);
+
+#endif

drivers/media/usb/as102/as102_fw.c

@@ -0,0 +1,228 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+
+#include "as102_drv.h"
+#include "as102_fw.h"
+
+static const char as102_st_fw1[] = "as102_data1_st.hex";
+static const char as102_st_fw2[] = "as102_data2_st.hex";
+static const char as102_dt_fw1[] = "as102_data1_dt.hex";
+static const char as102_dt_fw2[] = "as102_data2_dt.hex";
+
+static unsigned char atohx(unsigned char *dst, char *src)
+{
+	unsigned char value = 0;
+
+	char msb = tolower(*src) - '0';
+	char lsb = tolower(*(src + 1)) - '0';
+
+	if (msb > 9)
+		msb -= 7;
+	if (lsb > 9)
+		lsb -= 7;
+
+	*dst = value = ((msb & 0xF) << 4) | (lsb & 0xF);
+	return value;
+}
+
+/*
+ * Parse INTEL HEX firmware file to extract address and data.
+ */
+static int parse_hex_line(unsigned char *fw_data, unsigned char *addr,
+			  unsigned char *data, int *dataLength,
+			  unsigned char *addr_has_changed) {
+
+	int count = 0;
+	unsigned char *src, dst;
+
+	if (*fw_data++ != ':') {
+		pr_err("invalid firmware file\n");
+		return -EFAULT;
+	}
+
+	/* locate end of line */
+	for (src = fw_data; *src != '\n'; src += 2) {
+		atohx(&dst, src);
+		/* parse line to split addr / data */
+		switch (count) {
+		case 0:
+			*dataLength = dst;
+			break;
+		case 1:
+			addr[2] = dst;
+			break;
+		case 2:
+			addr[3] = dst;
+			break;
+		case 3:
+			/* check if data is an address */
+			if (dst == 0x04)
+				*addr_has_changed = 1;
+			else
+				*addr_has_changed = 0;
+			break;
+		case  4:
+		case  5:
+			if (*addr_has_changed)
+				addr[(count - 4)] = dst;
+			else
+				data[(count - 4)] = dst;
+			break;
+		default:
+			data[(count - 4)] = dst;
+			break;
+		}
+		count++;
+	}
+
+	/* return read value + ':' + '\n' */
+	return (count * 2) + 2;
+}
+
+static int as102_firmware_upload(struct as10x_bus_adapter_t *bus_adap,
+				 unsigned char *cmd,
+				 const struct firmware *firmware) {
+
+	struct as10x_fw_pkt_t fw_pkt;
+	int total_read_bytes = 0, errno = 0;
+	unsigned char addr_has_changed = 0;
+
+	for (total_read_bytes = 0; total_read_bytes < firmware->size; ) {
+		int read_bytes = 0, data_len = 0;
+
+		/* parse intel hex line */
+		read_bytes = parse_hex_line(
+				(u8 *) (firmware->data + total_read_bytes),
+				fw_pkt.raw.address,
+				fw_pkt.raw.data,
+				&data_len,
+				&addr_has_changed);
+
+		if (read_bytes <= 0)
+			goto error;
+
+		/* detect the end of file */
+		total_read_bytes += read_bytes;
+		if (total_read_bytes == firmware->size) {
+			fw_pkt.u.request[0] = 0x00;
+			fw_pkt.u.request[1] = 0x03;
+
+			/* send EOF command */
+			errno = bus_adap->ops->upload_fw_pkt(bus_adap,
+							     (uint8_t *)
+							     &fw_pkt, 2, 0);
+			if (errno < 0)
+				goto error;
+		} else {
+			if (!addr_has_changed) {
+				/* prepare command to send */
+				fw_pkt.u.request[0] = 0x00;
+				fw_pkt.u.request[1] = 0x01;
+
+				data_len += sizeof(fw_pkt.u.request);
+				data_len += sizeof(fw_pkt.raw.address);
+
+				/* send cmd to device */
+				errno = bus_adap->ops->upload_fw_pkt(bus_adap,
+								     (uint8_t *)
+								     &fw_pkt,
+								     data_len,
+								     0);
+				if (errno < 0)
+					goto error;
+			}
+		}
+	}
+error:
+	return (errno == 0) ? total_read_bytes : errno;
+}
+
+int as102_fw_upload(struct as10x_bus_adapter_t *bus_adap)
+{
+	int errno = -EFAULT;
+	const struct firmware *firmware = NULL;
+	unsigned char *cmd_buf = NULL;
+	const char *fw1, *fw2;
+	struct usb_device *dev = bus_adap->usb_dev;
+
+	/* select fw file to upload */
+	if (dual_tuner) {
+		fw1 = as102_dt_fw1;
+		fw2 = as102_dt_fw2;
+	} else {
+		fw1 = as102_st_fw1;
+		fw2 = as102_st_fw2;
+	}
+
+	/* allocate buffer to store firmware upload command and data */
+	cmd_buf = kzalloc(MAX_FW_PKT_SIZE, GFP_KERNEL);
+	if (cmd_buf == NULL) {
+		errno = -ENOMEM;
+		goto error;
+	}
+
+	/* request kernel to locate firmware file: part1 */
+	errno = request_firmware(&firmware, fw1, &dev->dev);
+	if (errno < 0) {
+		pr_err("%s: unable to locate firmware file: %s\n",
+		       DRIVER_NAME, fw1);
+		goto error;
+	}
+
+	/* initiate firmware upload */
+	errno = as102_firmware_upload(bus_adap, cmd_buf, firmware);
+	if (errno < 0) {
+		pr_err("%s: error during firmware upload part1\n",
+		       DRIVER_NAME);
+		goto error;
+	}
+
+	pr_info("%s: firmware: %s loaded with success\n",
+		DRIVER_NAME, fw1);
+	release_firmware(firmware);
+
+	/* wait for boot to complete */
+	mdelay(100);
+
+	/* request kernel to locate firmware file: part2 */
+	errno = request_firmware(&firmware, fw2, &dev->dev);
+	if (errno < 0) {
+		pr_err("%s: unable to locate firmware file: %s\n",
+		       DRIVER_NAME, fw2);
+		goto error;
+	}
+
+	/* initiate firmware upload */
+	errno = as102_firmware_upload(bus_adap, cmd_buf, firmware);
+	if (errno < 0) {
+		pr_err("%s: error during firmware upload part2\n",
+		       DRIVER_NAME);
+		goto error;
+	}
+
+	pr_info("%s: firmware: %s loaded with success\n",
+		DRIVER_NAME, fw2);
+error:
+	kfree(cmd_buf);
+	release_firmware(firmware);
+
+	return errno;
+}

drivers/media/usb/as102/as102_fw.h

@@ -0,0 +1,34 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#define MAX_FW_PKT_SIZE	64
+
+extern int dual_tuner;
+
+struct as10x_raw_fw_pkt {
+	unsigned char address[4];
+	unsigned char data[MAX_FW_PKT_SIZE - 6];
+} __packed;
+
+struct as10x_fw_pkt_t {
+	union {
+		unsigned char request[2];
+		unsigned char length[2];
+	} __packed u;
+	struct as10x_raw_fw_pkt raw;
+} __packed;
+
+#ifdef __KERNEL__
+int as102_fw_upload(struct as10x_bus_adapter_t *bus_adap);
+#endif

drivers/media/usb/as102/as102_usb_drv.c

@@ -0,0 +1,475 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/usb.h>
+
+#include "as102_drv.h"
+#include "as102_usb_drv.h"
+#include "as102_fw.h"
+
+static void as102_usb_disconnect(struct usb_interface *interface);
+static int as102_usb_probe(struct usb_interface *interface,
+			   const struct usb_device_id *id);
+
+static int as102_usb_start_stream(struct as102_dev_t *dev);
+static void as102_usb_stop_stream(struct as102_dev_t *dev);
+
+static int as102_open(struct inode *inode, struct file *file);
+static int as102_release(struct inode *inode, struct file *file);
+
+static struct usb_device_id as102_usb_id_table[] = {
+	{ USB_DEVICE(AS102_USB_DEVICE_VENDOR_ID, AS102_USB_DEVICE_PID_0001) },
+	{ USB_DEVICE(PCTV_74E_USB_VID, PCTV_74E_USB_PID) },
+	{ USB_DEVICE(ELGATO_EYETV_DTT_USB_VID, ELGATO_EYETV_DTT_USB_PID) },
+	{ USB_DEVICE(NBOX_DVBT_DONGLE_USB_VID, NBOX_DVBT_DONGLE_USB_PID) },
+	{ USB_DEVICE(SKY_IT_DIGITAL_KEY_USB_VID, SKY_IT_DIGITAL_KEY_USB_PID) },
+	{ } /* Terminating entry */
+};
+
+/* Note that this table must always have the same number of entries as the
+   as102_usb_id_table struct */
+static const char * const as102_device_names[] = {
+	AS102_REFERENCE_DESIGN,
+	AS102_PCTV_74E,
+	AS102_ELGATO_EYETV_DTT_NAME,
+	AS102_NBOX_DVBT_DONGLE_NAME,
+	AS102_SKY_IT_DIGITAL_KEY_NAME,
+	NULL /* Terminating entry */
+};
+
+/* eLNA configuration: devices built on the reference design work best
+   with 0xA0, while custom designs seem to require 0xC0 */
+static uint8_t const as102_elna_cfg[] = {
+	0xA0,
+	0xC0,
+	0xC0,
+	0xA0,
+	0xA0,
+	0x00 /* Terminating entry */
+};
+
+struct usb_driver as102_usb_driver = {
+	.name		= DRIVER_FULL_NAME,
+	.probe		= as102_usb_probe,
+	.disconnect	= as102_usb_disconnect,
+	.id_table	= as102_usb_id_table
+};
+
+static const struct file_operations as102_dev_fops = {
+	.owner		= THIS_MODULE,
+	.open		= as102_open,
+	.release	= as102_release,
+};
+
+static struct usb_class_driver as102_usb_class_driver = {
+	.name		= "aton2-%d",
+	.fops		= &as102_dev_fops,
+	.minor_base	= AS102_DEVICE_MAJOR,
+};
+
+static int as102_usb_xfer_cmd(struct as10x_bus_adapter_t *bus_adap,
+			      unsigned char *send_buf, int send_buf_len,
+			      unsigned char *recv_buf, int recv_buf_len)
+{
+	int ret = 0;
+
+	if (send_buf != NULL) {
+		ret = usb_control_msg(bus_adap->usb_dev,
+				      usb_sndctrlpipe(bus_adap->usb_dev, 0),
+				      AS102_USB_DEVICE_TX_CTRL_CMD,
+				      USB_DIR_OUT | USB_TYPE_VENDOR |
+				      USB_RECIP_DEVICE,
+				      bus_adap->cmd_xid, /* value */
+				      0, /* index */
+				      send_buf, send_buf_len,
+				      USB_CTRL_SET_TIMEOUT /* 200 */);
+		if (ret < 0) {
+			dev_dbg(&bus_adap->usb_dev->dev,
+				"usb_control_msg(send) failed, err %i\n", ret);
+			return ret;
+		}
+
+		if (ret != send_buf_len) {
+			dev_dbg(&bus_adap->usb_dev->dev,
+			"only wrote %d of %d bytes\n", ret, send_buf_len);
+			return -1;
+		}
+	}
+
+	if (recv_buf != NULL) {
+#ifdef TRACE
+		dev_dbg(bus_adap->usb_dev->dev,
+			"want to read: %d bytes\n", recv_buf_len);
+#endif
+		ret = usb_control_msg(bus_adap->usb_dev,
+				      usb_rcvctrlpipe(bus_adap->usb_dev, 0),
+				      AS102_USB_DEVICE_RX_CTRL_CMD,
+				      USB_DIR_IN | USB_TYPE_VENDOR |
+				      USB_RECIP_DEVICE,
+				      bus_adap->cmd_xid, /* value */
+				      0, /* index */
+				      recv_buf, recv_buf_len,
+				      USB_CTRL_GET_TIMEOUT /* 200 */);
+		if (ret < 0) {
+			dev_dbg(&bus_adap->usb_dev->dev,
+				"usb_control_msg(recv) failed, err %i\n", ret);
+			return ret;
+		}
+#ifdef TRACE
+		dev_dbg(bus_adap->usb_dev->dev,
+			"read %d bytes\n", recv_buf_len);
+#endif
+	}
+
+	return ret;
+}
+
+static int as102_send_ep1(struct as10x_bus_adapter_t *bus_adap,
+			  unsigned char *send_buf,
+			  int send_buf_len,
+			  int swap32)
+{
+	int ret, actual_len;
+
+	ret = usb_bulk_msg(bus_adap->usb_dev,
+			   usb_sndbulkpipe(bus_adap->usb_dev, 1),
+			   send_buf, send_buf_len, &actual_len, 200);
+	if (ret) {
+		dev_dbg(&bus_adap->usb_dev->dev,
+			"usb_bulk_msg(send) failed, err %i\n", ret);
+		return ret;
+	}
+
+	if (actual_len != send_buf_len) {
+		dev_dbg(&bus_adap->usb_dev->dev, "only wrote %d of %d bytes\n",
+			actual_len, send_buf_len);
+		return -1;
+	}
+	return actual_len;
+}
+
+static int as102_read_ep2(struct as10x_bus_adapter_t *bus_adap,
+		   unsigned char *recv_buf, int recv_buf_len)
+{
+	int ret, actual_len;
+
+	if (recv_buf == NULL)
+		return -EINVAL;
+
+	ret = usb_bulk_msg(bus_adap->usb_dev,
+			   usb_rcvbulkpipe(bus_adap->usb_dev, 2),
+			   recv_buf, recv_buf_len, &actual_len, 200);
+	if (ret) {
+		dev_dbg(&bus_adap->usb_dev->dev,
+			"usb_bulk_msg(recv) failed, err %i\n", ret);
+		return ret;
+	}
+
+	if (actual_len != recv_buf_len) {
+		dev_dbg(&bus_adap->usb_dev->dev, "only read %d of %d bytes\n",
+			actual_len, recv_buf_len);
+		return -1;
+	}
+	return actual_len;
+}
+
+static struct as102_priv_ops_t as102_priv_ops = {
+	.upload_fw_pkt	= as102_send_ep1,
+	.xfer_cmd	= as102_usb_xfer_cmd,
+	.as102_read_ep2	= as102_read_ep2,
+	.start_stream	= as102_usb_start_stream,
+	.stop_stream	= as102_usb_stop_stream,
+};
+
+static int as102_submit_urb_stream(struct as102_dev_t *dev, struct urb *urb)
+{
+	int err;
+
+	usb_fill_bulk_urb(urb,
+			  dev->bus_adap.usb_dev,
+			  usb_rcvbulkpipe(dev->bus_adap.usb_dev, 0x2),
+			  urb->transfer_buffer,
+			  AS102_USB_BUF_SIZE,
+			  as102_urb_stream_irq,
+			  dev);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err)
+		dev_dbg(&urb->dev->dev,
+			"%s: usb_submit_urb failed\n", __func__);
+
+	return err;
+}
+
+void as102_urb_stream_irq(struct urb *urb)
+{
+	struct as102_dev_t *as102_dev = urb->context;
+
+	if (urb->actual_length > 0) {
+		dvb_dmx_swfilter(&as102_dev->dvb_dmx,
+				 urb->transfer_buffer,
+				 urb->actual_length);
+	} else {
+		if (urb->actual_length == 0)
+			memset(urb->transfer_buffer, 0, AS102_USB_BUF_SIZE);
+	}
+
+	/* is not stopped, re-submit urb */
+	if (as102_dev->streaming)
+		as102_submit_urb_stream(as102_dev, urb);
+}
+
+static void as102_free_usb_stream_buffer(struct as102_dev_t *dev)
+{
+	int i;
+
+	for (i = 0; i < MAX_STREAM_URB; i++)
+		usb_free_urb(dev->stream_urb[i]);
+
+	usb_free_coherent(dev->bus_adap.usb_dev,
+			MAX_STREAM_URB * AS102_USB_BUF_SIZE,
+			dev->stream,
+			dev->dma_addr);
+}
+
+static int as102_alloc_usb_stream_buffer(struct as102_dev_t *dev)
+{
+	int i;
+
+	dev->stream = usb_alloc_coherent(dev->bus_adap.usb_dev,
+				       MAX_STREAM_URB * AS102_USB_BUF_SIZE,
+				       GFP_KERNEL,
+				       &dev->dma_addr);
+	if (!dev->stream) {
+		dev_dbg(&dev->bus_adap.usb_dev->dev,
+			"%s: usb_buffer_alloc failed\n", __func__);
+		return -ENOMEM;
+	}
+
+	memset(dev->stream, 0, MAX_STREAM_URB * AS102_USB_BUF_SIZE);
+
+	/* init urb buffers */
+	for (i = 0; i < MAX_STREAM_URB; i++) {
+		struct urb *urb;
+
+		urb = usb_alloc_urb(0, GFP_ATOMIC);
+		if (urb == NULL) {
+			dev_dbg(&dev->bus_adap.usb_dev->dev,
+				"%s: usb_alloc_urb failed\n", __func__);
+			as102_free_usb_stream_buffer(dev);
+			return -ENOMEM;
+		}
+
+		urb->transfer_buffer = dev->stream + (i * AS102_USB_BUF_SIZE);
+		urb->transfer_dma = dev->dma_addr + (i * AS102_USB_BUF_SIZE);
+		urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+		urb->transfer_buffer_length = AS102_USB_BUF_SIZE;
+
+		dev->stream_urb[i] = urb;
+	}
+	return 0;
+}
+
+static void as102_usb_stop_stream(struct as102_dev_t *dev)
+{
+	int i;
+
+	for (i = 0; i < MAX_STREAM_URB; i++)
+		usb_kill_urb(dev->stream_urb[i]);
+}
+
+static int as102_usb_start_stream(struct as102_dev_t *dev)
+{
+	int i, ret = 0;
+
+	for (i = 0; i < MAX_STREAM_URB; i++) {
+		ret = as102_submit_urb_stream(dev, dev->stream_urb[i]);
+		if (ret) {
+			as102_usb_stop_stream(dev);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static void as102_usb_release(struct kref *kref)
+{
+	struct as102_dev_t *as102_dev;
+
+	as102_dev = container_of(kref, struct as102_dev_t, kref);
+	if (as102_dev != NULL) {
+		usb_put_dev(as102_dev->bus_adap.usb_dev);
+		kfree(as102_dev);
+	}
+}
+
+static void as102_usb_disconnect(struct usb_interface *intf)
+{
+	struct as102_dev_t *as102_dev;
+
+	/* extract as102_dev_t from usb_device private data */
+	as102_dev = usb_get_intfdata(intf);
+
+	/* unregister dvb layer */
+	as102_dvb_unregister(as102_dev);
+
+	/* free usb buffers */
+	as102_free_usb_stream_buffer(as102_dev);
+
+	usb_set_intfdata(intf, NULL);
+
+	/* usb unregister device */
+	usb_deregister_dev(intf, &as102_usb_class_driver);
+
+	/* decrement usage counter */
+	kref_put(&as102_dev->kref, as102_usb_release);
+
+	pr_info("%s: device has been disconnected\n", DRIVER_NAME);
+}
+
+static int as102_usb_probe(struct usb_interface *intf,
+			   const struct usb_device_id *id)
+{
+	int ret;
+	struct as102_dev_t *as102_dev;
+	int i;
+
+	/* This should never actually happen */
+	if (ARRAY_SIZE(as102_usb_id_table) !=
+	    (sizeof(as102_device_names) / sizeof(const char *))) {
+		pr_err("Device names table invalid size");
+		return -EINVAL;
+	}
+
+	as102_dev = kzalloc(sizeof(struct as102_dev_t), GFP_KERNEL);
+	if (as102_dev == NULL)
+		return -ENOMEM;
+
+	/* Assign the user-friendly device name */
+	for (i = 0; i < ARRAY_SIZE(as102_usb_id_table); i++) {
+		if (id == &as102_usb_id_table[i]) {
+			as102_dev->name = as102_device_names[i];
+			as102_dev->elna_cfg = as102_elna_cfg[i];
+		}
+	}
+
+	if (as102_dev->name == NULL)
+		as102_dev->name = "Unknown AS102 device";
+
+	/* set private callback functions */
+	as102_dev->bus_adap.ops = &as102_priv_ops;
+
+	/* init cmd token for usb bus */
+	as102_dev->bus_adap.cmd = &as102_dev->bus_adap.token.usb.c;
+	as102_dev->bus_adap.rsp = &as102_dev->bus_adap.token.usb.r;
+
+	/* init kernel device reference */
+	kref_init(&as102_dev->kref);
+
+	/* store as102 device to usb_device private data */
+	usb_set_intfdata(intf, (void *) as102_dev);
+
+	/* store in as102 device the usb_device pointer */
+	as102_dev->bus_adap.usb_dev = usb_get_dev(interface_to_usbdev(intf));
+
+	/* we can register the device now, as it is ready */
+	ret = usb_register_dev(intf, &as102_usb_class_driver);
+	if (ret < 0) {
+		/* something prevented us from registering this driver */
+		dev_err(&intf->dev,
+			"%s: usb_register_dev() failed (errno = %d)\n",
+			__func__, ret);
+		goto failed;
+	}
+
+	pr_info("%s: device has been detected\n", DRIVER_NAME);
+
+	/* request buffer allocation for streaming */
+	ret = as102_alloc_usb_stream_buffer(as102_dev);
+	if (ret != 0)
+		goto failed_stream;
+
+	/* register dvb layer */
+	ret = as102_dvb_register(as102_dev);
+	if (ret != 0)
+		goto failed_dvb;
+
+	return ret;
+
+failed_dvb:
+	as102_free_usb_stream_buffer(as102_dev);
+failed_stream:
+	usb_deregister_dev(intf, &as102_usb_class_driver);
+failed:
+	usb_put_dev(as102_dev->bus_adap.usb_dev);
+	usb_set_intfdata(intf, NULL);
+	kfree(as102_dev);
+	return ret;
+}
+
+static int as102_open(struct inode *inode, struct file *file)
+{
+	int ret = 0, minor = 0;
+	struct usb_interface *intf = NULL;
+	struct as102_dev_t *dev = NULL;
+
+	/* read minor from inode */
+	minor = iminor(inode);
+
+	/* fetch device from usb interface */
+	intf = usb_find_interface(&as102_usb_driver, minor);
+	if (intf == NULL) {
+		pr_err("%s: can't find device for minor %d\n",
+		       __func__, minor);
+		ret = -ENODEV;
+		goto exit;
+	}
+
+	/* get our device */
+	dev = usb_get_intfdata(intf);
+	if (dev == NULL) {
+		ret = -EFAULT;
+		goto exit;
+	}
+
+	/* save our device object in the file's private structure */
+	file->private_data = dev;
+
+	/* increment our usage count for the device */
+	kref_get(&dev->kref);
+
+exit:
+	return ret;
+}
+
+static int as102_release(struct inode *inode, struct file *file)
+{
+	struct as102_dev_t *dev = NULL;
+
+	dev = file->private_data;
+	if (dev != NULL) {
+		/* decrement the count on our device */
+		kref_put(&dev->kref, as102_usb_release);
+	}
+
+	return 0;
+}
+
+MODULE_DEVICE_TABLE(usb, as102_usb_id_table);

drivers/media/usb/as102/as102_usb_drv.h

@@ -0,0 +1,57 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef _AS102_USB_DRV_H_
+#define _AS102_USB_DRV_H_
+
+#define AS102_USB_DEVICE_TX_CTRL_CMD	0xF1
+#define AS102_USB_DEVICE_RX_CTRL_CMD	0xF2
+
+/* define these values to match the supported devices */
+
+/* Abilis system: "TITAN" */
+#define AS102_REFERENCE_DESIGN		"Abilis Systems DVB-Titan"
+#define AS102_USB_DEVICE_VENDOR_ID	0x1BA6
+#define AS102_USB_DEVICE_PID_0001	0x0001
+
+/* PCTV Systems: PCTV picoStick (74e) */
+#define AS102_PCTV_74E			"PCTV Systems picoStick (74e)"
+#define PCTV_74E_USB_VID		0x2013
+#define PCTV_74E_USB_PID		0x0246
+
+/* Elgato: EyeTV DTT Deluxe */
+#define AS102_ELGATO_EYETV_DTT_NAME	"Elgato EyeTV DTT Deluxe"
+#define ELGATO_EYETV_DTT_USB_VID	0x0fd9
+#define ELGATO_EYETV_DTT_USB_PID	0x002c
+
+/* nBox: nBox DVB-T Dongle */
+#define AS102_NBOX_DVBT_DONGLE_NAME	"nBox DVB-T Dongle"
+#define NBOX_DVBT_DONGLE_USB_VID	0x0b89
+#define NBOX_DVBT_DONGLE_USB_PID	0x0007
+
+/* Sky Italia: Digital Key (green led) */
+#define AS102_SKY_IT_DIGITAL_KEY_NAME	"Sky IT Digital Key (green led)"
+#define SKY_IT_DIGITAL_KEY_USB_VID	0x2137
+#define SKY_IT_DIGITAL_KEY_USB_PID	0x0001
+
+void as102_urb_stream_irq(struct urb *urb);
+
+struct as10x_usb_token_cmd_t {
+	/* token cmd */
+	struct as10x_cmd_t c;
+	/* token response */
+	struct as10x_cmd_t r;
+};
+#endif

drivers/media/usb/as102/as10x_cmd.c

@@ -0,0 +1,413 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include "as102_drv.h"
+#include "as10x_cmd.h"
+
+/**
+ * as10x_cmd_turn_on - send turn on command to AS10x
+ * @adap:   pointer to AS10x bus adapter
+ *
+ * Return 0 when no error, < 0 in case of error.
+ */
+int as10x_cmd_turn_on(struct as10x_bus_adapter_t *adap)
+{
+	int error = AS10X_CMD_ERROR;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.turn_on.req));
+
+	/* fill command */
+	pcmd->body.turn_on.req.proc_id = cpu_to_le16(CONTROL_PROC_TURNON);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
+					    sizeof(pcmd->body.turn_on.req) +
+					    HEADER_SIZE,
+					    (uint8_t *) prsp,
+					    sizeof(prsp->body.turn_on.rsp) +
+					    HEADER_SIZE);
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_TURNON_RSP);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_turn_off - send turn off command to AS10x
+ * @adap:   pointer to AS10x bus adapter
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_turn_off(struct as10x_bus_adapter_t *adap)
+{
+	int error = AS10X_CMD_ERROR;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.turn_off.req));
+
+	/* fill command */
+	pcmd->body.turn_off.req.proc_id = cpu_to_le16(CONTROL_PROC_TURNOFF);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(
+			adap, (uint8_t *) pcmd,
+			sizeof(pcmd->body.turn_off.req) + HEADER_SIZE,
+			(uint8_t *) prsp,
+			sizeof(prsp->body.turn_off.rsp) + HEADER_SIZE);
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_TURNOFF_RSP);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_set_tune - send set tune command to AS10x
+ * @adap:    pointer to AS10x bus adapter
+ * @ptune:   tune parameters
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_set_tune(struct as10x_bus_adapter_t *adap,
+		       struct as10x_tune_args *ptune)
+{
+	int error = AS10X_CMD_ERROR;
+	struct as10x_cmd_t *preq, *prsp;
+
+	preq = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(preq, (++adap->cmd_xid),
+			sizeof(preq->body.set_tune.req));
+
+	/* fill command */
+	preq->body.set_tune.req.proc_id = cpu_to_le16(CONTROL_PROC_SETTUNE);
+	preq->body.set_tune.req.args.freq = (__force __u32)cpu_to_le32(ptune->freq);
+	preq->body.set_tune.req.args.bandwidth = ptune->bandwidth;
+	preq->body.set_tune.req.args.hier_select = ptune->hier_select;
+	preq->body.set_tune.req.args.modulation = ptune->modulation;
+	preq->body.set_tune.req.args.hierarchy = ptune->hierarchy;
+	preq->body.set_tune.req.args.interleaving_mode  =
+		ptune->interleaving_mode;
+	preq->body.set_tune.req.args.code_rate  = ptune->code_rate;
+	preq->body.set_tune.req.args.guard_interval = ptune->guard_interval;
+	preq->body.set_tune.req.args.transmission_mode  =
+		ptune->transmission_mode;
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap,
+					    (uint8_t *) preq,
+					    sizeof(preq->body.set_tune.req)
+					    + HEADER_SIZE,
+					    (uint8_t *) prsp,
+					    sizeof(prsp->body.set_tune.rsp)
+					    + HEADER_SIZE);
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_SETTUNE_RSP);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_get_tune_status - send get tune status command to AS10x
+ * @adap: pointer to AS10x bus adapter
+ * @pstatus: pointer to updated status structure of the current tune
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_get_tune_status(struct as10x_bus_adapter_t *adap,
+			      struct as10x_tune_status *pstatus)
+{
+	int error = AS10X_CMD_ERROR;
+	struct as10x_cmd_t  *preq, *prsp;
+
+	preq = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(preq, (++adap->cmd_xid),
+			sizeof(preq->body.get_tune_status.req));
+
+	/* fill command */
+	preq->body.get_tune_status.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_GETTUNESTAT);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(
+			adap,
+			(uint8_t *) preq,
+			sizeof(preq->body.get_tune_status.req) + HEADER_SIZE,
+			(uint8_t *) prsp,
+			sizeof(prsp->body.get_tune_status.rsp) + HEADER_SIZE);
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_GETTUNESTAT_RSP);
+	if (error < 0)
+		goto out;
+
+	/* Response OK -> get response data */
+	pstatus->tune_state = prsp->body.get_tune_status.rsp.sts.tune_state;
+	pstatus->signal_strength  =
+		le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.signal_strength);
+	pstatus->PER = le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.PER);
+	pstatus->BER = le16_to_cpu((__force __le16)prsp->body.get_tune_status.rsp.sts.BER);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_get_tps - send get TPS command to AS10x
+ * @adap:      pointer to AS10x handle
+ * @ptps:      pointer to TPS parameters structure
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_get_tps(struct as10x_bus_adapter_t *adap, struct as10x_tps *ptps)
+{
+	int error = AS10X_CMD_ERROR;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.get_tps.req));
+
+	/* fill command */
+	pcmd->body.get_tune_status.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_GETTPS);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap,
+					    (uint8_t *) pcmd,
+					    sizeof(pcmd->body.get_tps.req) +
+					    HEADER_SIZE,
+					    (uint8_t *) prsp,
+					    sizeof(prsp->body.get_tps.rsp) +
+					    HEADER_SIZE);
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_GETTPS_RSP);
+	if (error < 0)
+		goto out;
+
+	/* Response OK -> get response data */
+	ptps->modulation = prsp->body.get_tps.rsp.tps.modulation;
+	ptps->hierarchy = prsp->body.get_tps.rsp.tps.hierarchy;
+	ptps->interleaving_mode = prsp->body.get_tps.rsp.tps.interleaving_mode;
+	ptps->code_rate_HP = prsp->body.get_tps.rsp.tps.code_rate_HP;
+	ptps->code_rate_LP = prsp->body.get_tps.rsp.tps.code_rate_LP;
+	ptps->guard_interval = prsp->body.get_tps.rsp.tps.guard_interval;
+	ptps->transmission_mode  = prsp->body.get_tps.rsp.tps.transmission_mode;
+	ptps->DVBH_mask_HP = prsp->body.get_tps.rsp.tps.DVBH_mask_HP;
+	ptps->DVBH_mask_LP = prsp->body.get_tps.rsp.tps.DVBH_mask_LP;
+	ptps->cell_ID = le16_to_cpu((__force __le16)prsp->body.get_tps.rsp.tps.cell_ID);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_get_demod_stats - send get demod stats command to AS10x
+ * @adap:          pointer to AS10x bus adapter
+ * @pdemod_stats:  pointer to demod stats parameters structure
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_get_demod_stats(struct as10x_bus_adapter_t *adap,
+			      struct as10x_demod_stats *pdemod_stats)
+{
+	int error = AS10X_CMD_ERROR;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.get_demod_stats.req));
+
+	/* fill command */
+	pcmd->body.get_demod_stats.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_GET_DEMOD_STATS);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap,
+				(uint8_t *) pcmd,
+				sizeof(pcmd->body.get_demod_stats.req)
+				+ HEADER_SIZE,
+				(uint8_t *) prsp,
+				sizeof(prsp->body.get_demod_stats.rsp)
+				+ HEADER_SIZE);
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_GET_DEMOD_STATS_RSP);
+	if (error < 0)
+		goto out;
+
+	/* Response OK -> get response data */
+	pdemod_stats->frame_count =
+		le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.frame_count);
+	pdemod_stats->bad_frame_count =
+		le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.bad_frame_count);
+	pdemod_stats->bytes_fixed_by_rs =
+		le32_to_cpu((__force __le32)prsp->body.get_demod_stats.rsp.stats.bytes_fixed_by_rs);
+	pdemod_stats->mer =
+		le16_to_cpu((__force __le16)prsp->body.get_demod_stats.rsp.stats.mer);
+	pdemod_stats->has_started =
+		prsp->body.get_demod_stats.rsp.stats.has_started;
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_get_impulse_resp - send get impulse response command to AS10x
+ * @adap:     pointer to AS10x bus adapter
+ * @is_ready: pointer to value indicating when impulse
+ *	      response data is ready
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_get_impulse_resp(struct as10x_bus_adapter_t *adap,
+			       uint8_t *is_ready)
+{
+	int error = AS10X_CMD_ERROR;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.get_impulse_rsp.req));
+
+	/* fill command */
+	pcmd->body.get_impulse_rsp.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_GET_IMPULSE_RESP);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap,
+					(uint8_t *) pcmd,
+					sizeof(pcmd->body.get_impulse_rsp.req)
+					+ HEADER_SIZE,
+					(uint8_t *) prsp,
+					sizeof(prsp->body.get_impulse_rsp.rsp)
+					+ HEADER_SIZE);
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_GET_IMPULSE_RESP_RSP);
+	if (error < 0)
+		goto out;
+
+	/* Response OK -> get response data */
+	*is_ready = prsp->body.get_impulse_rsp.rsp.is_ready;
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_build - build AS10x command header
+ * @pcmd:     pointer to AS10x command buffer
+ * @xid:      sequence id of the command
+ * @cmd_len:  length of the command
+ */
+void as10x_cmd_build(struct as10x_cmd_t *pcmd,
+		     uint16_t xid, uint16_t cmd_len)
+{
+	pcmd->header.req_id = cpu_to_le16(xid);
+	pcmd->header.prog = cpu_to_le16(SERVICE_PROG_ID);
+	pcmd->header.version = cpu_to_le16(SERVICE_PROG_VERSION);
+	pcmd->header.data_len = cpu_to_le16(cmd_len);
+}
+
+/**
+ * as10x_rsp_parse - Parse command response
+ * @prsp:       pointer to AS10x command buffer
+ * @proc_id:    id of the command
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_rsp_parse(struct as10x_cmd_t *prsp, uint16_t proc_id)
+{
+	int error;
+
+	/* extract command error code */
+	error = prsp->body.common.rsp.error;
+
+	if ((error == 0) &&
+	    (le16_to_cpu(prsp->body.common.rsp.proc_id) == proc_id)) {
+		return 0;
+	}
+
+	return AS10X_CMD_ERROR;
+}

drivers/media/usb/as102/as10x_cmd.h

@@ -0,0 +1,523 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef _AS10X_CMD_H_
+#define _AS10X_CMD_H_
+
+#include <linux/kernel.h>
+
+#include "as102_fe_types.h"
+
+/*********************************/
+/*       MACRO DEFINITIONS       */
+/*********************************/
+#define AS10X_CMD_ERROR		-1
+
+#define SERVICE_PROG_ID		0x0002
+#define SERVICE_PROG_VERSION	0x0001
+
+#define HIER_NONE		0x00
+#define HIER_LOW_PRIORITY	0x01
+
+#define HEADER_SIZE (sizeof(struct as10x_cmd_header_t))
+
+/* context request types */
+#define GET_CONTEXT_DATA	1
+#define SET_CONTEXT_DATA	2
+
+/* ODSP suspend modes */
+#define CFG_MODE_ODSP_RESUME	0
+#define CFG_MODE_ODSP_SUSPEND	1
+
+/* Dump memory size */
+#define DUMP_BLOCK_SIZE_MAX	0x20
+
+/*********************************/
+/*     TYPE DEFINITION           */
+/*********************************/
+enum control_proc {
+	CONTROL_PROC_TURNON			= 0x0001,
+	CONTROL_PROC_TURNON_RSP			= 0x0100,
+	CONTROL_PROC_SET_REGISTER		= 0x0002,
+	CONTROL_PROC_SET_REGISTER_RSP		= 0x0200,
+	CONTROL_PROC_GET_REGISTER		= 0x0003,
+	CONTROL_PROC_GET_REGISTER_RSP		= 0x0300,
+	CONTROL_PROC_SETTUNE			= 0x000A,
+	CONTROL_PROC_SETTUNE_RSP		= 0x0A00,
+	CONTROL_PROC_GETTUNESTAT		= 0x000B,
+	CONTROL_PROC_GETTUNESTAT_RSP		= 0x0B00,
+	CONTROL_PROC_GETTPS			= 0x000D,
+	CONTROL_PROC_GETTPS_RSP			= 0x0D00,
+	CONTROL_PROC_SETFILTER			= 0x000E,
+	CONTROL_PROC_SETFILTER_RSP		= 0x0E00,
+	CONTROL_PROC_REMOVEFILTER		= 0x000F,
+	CONTROL_PROC_REMOVEFILTER_RSP		= 0x0F00,
+	CONTROL_PROC_GET_IMPULSE_RESP		= 0x0012,
+	CONTROL_PROC_GET_IMPULSE_RESP_RSP	= 0x1200,
+	CONTROL_PROC_START_STREAMING		= 0x0013,
+	CONTROL_PROC_START_STREAMING_RSP	= 0x1300,
+	CONTROL_PROC_STOP_STREAMING		= 0x0014,
+	CONTROL_PROC_STOP_STREAMING_RSP		= 0x1400,
+	CONTROL_PROC_GET_DEMOD_STATS		= 0x0015,
+	CONTROL_PROC_GET_DEMOD_STATS_RSP	= 0x1500,
+	CONTROL_PROC_ELNA_CHANGE_MODE		= 0x0016,
+	CONTROL_PROC_ELNA_CHANGE_MODE_RSP	= 0x1600,
+	CONTROL_PROC_ODSP_CHANGE_MODE		= 0x0017,
+	CONTROL_PROC_ODSP_CHANGE_MODE_RSP	= 0x1700,
+	CONTROL_PROC_AGC_CHANGE_MODE		= 0x0018,
+	CONTROL_PROC_AGC_CHANGE_MODE_RSP	= 0x1800,
+
+	CONTROL_PROC_CONTEXT			= 0x00FC,
+	CONTROL_PROC_CONTEXT_RSP		= 0xFC00,
+	CONTROL_PROC_DUMP_MEMORY		= 0x00FD,
+	CONTROL_PROC_DUMP_MEMORY_RSP		= 0xFD00,
+	CONTROL_PROC_DUMPLOG_MEMORY		= 0x00FE,
+	CONTROL_PROC_DUMPLOG_MEMORY_RSP		= 0xFE00,
+	CONTROL_PROC_TURNOFF			= 0x00FF,
+	CONTROL_PROC_TURNOFF_RSP		= 0xFF00
+};
+
+union as10x_turn_on {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_turn_off {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t err;
+	} __packed rsp;
+} __packed;
+
+union as10x_set_tune {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+		/* tune params */
+		struct as10x_tune_args args;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* response error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_get_tune_status {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* response error */
+		uint8_t error;
+		/* tune status */
+		struct as10x_tune_status sts;
+	} __packed rsp;
+} __packed;
+
+union as10x_get_tps {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* response error */
+		uint8_t error;
+		/* tps details */
+		struct as10x_tps tps;
+	} __packed rsp;
+} __packed;
+
+union as10x_common {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16  proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* response error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_add_pid_filter {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16  proc_id;
+		/* PID to filter */
+		__le16  pid;
+		/* stream type (MPE, PSI/SI or PES )*/
+		uint8_t stream_type;
+		/* PID index in filter table */
+		uint8_t idx;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* response error */
+		uint8_t error;
+		/* Filter id */
+		uint8_t filter_id;
+	} __packed rsp;
+} __packed;
+
+union as10x_del_pid_filter {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16  proc_id;
+		/* PID to remove */
+		__le16  pid;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* response error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_start_streaming {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_stop_streaming {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_get_demod_stats {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+		/* demod stats */
+		struct as10x_demod_stats stats;
+	} __packed rsp;
+} __packed;
+
+union as10x_get_impulse_resp {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+		/* impulse response ready */
+		uint8_t is_ready;
+	} __packed rsp;
+} __packed;
+
+union as10x_fw_context {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+		/* value to write (for set context)*/
+		struct as10x_register_value reg_val;
+		/* context tag */
+		__le16 tag;
+		/* context request type */
+		__le16 type;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* value read (for get context) */
+		struct as10x_register_value reg_val;
+		/* context request type */
+		__le16 type;
+		/* error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_set_register {
+	/* request */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* register description */
+		struct as10x_register_addr reg_addr;
+		/* register content */
+		struct as10x_register_value reg_val;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+union as10x_get_register {
+	/* request */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* register description */
+		struct as10x_register_addr reg_addr;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+		/* register content */
+		struct as10x_register_value reg_val;
+	} __packed rsp;
+} __packed;
+
+union as10x_cfg_change_mode {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+		/* mode */
+		uint8_t mode;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+	} __packed rsp;
+} __packed;
+
+struct as10x_cmd_header_t {
+	__le16 req_id;
+	__le16 prog;
+	__le16 version;
+	__le16 data_len;
+} __packed;
+
+#define DUMP_BLOCK_SIZE 16
+
+union as10x_dump_memory {
+	/* request */
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+		/* dump memory type request */
+		uint8_t dump_req;
+		/* register description */
+		struct as10x_register_addr reg_addr;
+		/* nb blocks to read */
+		__le16 num_blocks;
+	} __packed req;
+	/* response */
+	struct {
+		/* response identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+		/* dump response */
+		uint8_t dump_rsp;
+		/* data */
+		union {
+			uint8_t  data8[DUMP_BLOCK_SIZE];
+			__le16 data16[DUMP_BLOCK_SIZE / sizeof(__le16)];
+			__le32 data32[DUMP_BLOCK_SIZE / sizeof(__le32)];
+		} __packed u;
+	} __packed rsp;
+} __packed;
+
+union as10x_dumplog_memory {
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+		/* dump memory type request */
+		uint8_t dump_req;
+	} __packed req;
+	struct {
+		/* request identifier */
+		__le16 proc_id;
+		/* error */
+		uint8_t error;
+		/* dump response */
+		uint8_t dump_rsp;
+		/* dump data */
+		uint8_t data[DUMP_BLOCK_SIZE];
+	} __packed rsp;
+} __packed;
+
+union as10x_raw_data {
+	/* request */
+	struct {
+		__le16 proc_id;
+		uint8_t data[64 - sizeof(struct as10x_cmd_header_t)
+			     - 2 /* proc_id */];
+	} __packed req;
+	/* response */
+	struct {
+		__le16 proc_id;
+		uint8_t error;
+		uint8_t data[64 - sizeof(struct as10x_cmd_header_t)
+			     - 2 /* proc_id */ - 1 /* rc */];
+	} __packed rsp;
+} __packed;
+
+struct as10x_cmd_t {
+	struct as10x_cmd_header_t header;
+	union {
+		union as10x_turn_on		turn_on;
+		union as10x_turn_off		turn_off;
+		union as10x_set_tune		set_tune;
+		union as10x_get_tune_status	get_tune_status;
+		union as10x_get_tps		get_tps;
+		union as10x_common		common;
+		union as10x_add_pid_filter	add_pid_filter;
+		union as10x_del_pid_filter	del_pid_filter;
+		union as10x_start_streaming	start_streaming;
+		union as10x_stop_streaming	stop_streaming;
+		union as10x_get_demod_stats	get_demod_stats;
+		union as10x_get_impulse_resp	get_impulse_rsp;
+		union as10x_fw_context		context;
+		union as10x_set_register	set_register;
+		union as10x_get_register	get_register;
+		union as10x_cfg_change_mode	cfg_change_mode;
+		union as10x_dump_memory		dump_memory;
+		union as10x_dumplog_memory	dumplog_memory;
+		union as10x_raw_data		raw_data;
+	} __packed body;
+} __packed;
+
+struct as10x_token_cmd_t {
+	/* token cmd */
+	struct as10x_cmd_t c;
+	/* token response */
+	struct as10x_cmd_t r;
+} __packed;
+
+
+/**************************/
+/* FUNCTION DECLARATION   */
+/**************************/
+
+void as10x_cmd_build(struct as10x_cmd_t *pcmd, uint16_t proc_id,
+		      uint16_t cmd_len);
+int as10x_rsp_parse(struct as10x_cmd_t *r, uint16_t proc_id);
+
+/* as10x cmd */
+int as10x_cmd_turn_on(struct as10x_bus_adapter_t *adap);
+int as10x_cmd_turn_off(struct as10x_bus_adapter_t *adap);
+
+int as10x_cmd_set_tune(struct as10x_bus_adapter_t *adap,
+		       struct as10x_tune_args *ptune);
+
+int as10x_cmd_get_tune_status(struct as10x_bus_adapter_t *adap,
+			      struct as10x_tune_status *pstatus);
+
+int as10x_cmd_get_tps(struct as10x_bus_adapter_t *adap,
+		      struct as10x_tps *ptps);
+
+int as10x_cmd_get_demod_stats(struct as10x_bus_adapter_t  *adap,
+			      struct as10x_demod_stats *pdemod_stats);
+
+int as10x_cmd_get_impulse_resp(struct as10x_bus_adapter_t *adap,
+			       uint8_t *is_ready);
+
+/* as10x cmd stream */
+int as10x_cmd_add_PID_filter(struct as10x_bus_adapter_t *adap,
+			     struct as10x_ts_filter *filter);
+int as10x_cmd_del_PID_filter(struct as10x_bus_adapter_t *adap,
+			     uint16_t pid_value);
+
+int as10x_cmd_start_streaming(struct as10x_bus_adapter_t *adap);
+int as10x_cmd_stop_streaming(struct as10x_bus_adapter_t *adap);
+
+/* as10x cmd cfg */
+int as10x_cmd_set_context(struct as10x_bus_adapter_t *adap,
+			  uint16_t tag,
+			  uint32_t value);
+int as10x_cmd_get_context(struct as10x_bus_adapter_t *adap,
+			  uint16_t tag,
+			  uint32_t *pvalue);
+
+int as10x_cmd_eLNA_change_mode(struct as10x_bus_adapter_t *adap, uint8_t mode);
+int as10x_context_rsp_parse(struct as10x_cmd_t *prsp, uint16_t proc_id);
+#endif

drivers/media/usb/as102/as10x_cmd_cfg.c

@@ -0,0 +1,201 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include "as102_drv.h"
+#include "as10x_cmd.h"
+
+/***************************/
+/* FUNCTION DEFINITION     */
+/***************************/
+
+/**
+ * as10x_cmd_get_context - Send get context command to AS10x
+ * @adap:      pointer to AS10x bus adapter
+ * @tag:       context tag
+ * @pvalue:    pointer where to store context value read
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_get_context(struct as10x_bus_adapter_t *adap, uint16_t tag,
+			  uint32_t *pvalue)
+{
+	int  error;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.context.req));
+
+	/* fill command */
+	pcmd->body.context.req.proc_id = cpu_to_le16(CONTROL_PROC_CONTEXT);
+	pcmd->body.context.req.tag = cpu_to_le16(tag);
+	pcmd->body.context.req.type = cpu_to_le16(GET_CONTEXT_DATA);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error  = adap->ops->xfer_cmd(adap,
+					     (uint8_t *) pcmd,
+					     sizeof(pcmd->body.context.req)
+					     + HEADER_SIZE,
+					     (uint8_t *) prsp,
+					     sizeof(prsp->body.context.rsp)
+					     + HEADER_SIZE);
+	} else {
+		error = AS10X_CMD_ERROR;
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response: context command do not follow the common response */
+	/* structure -> specific handling response parse required            */
+	error = as10x_context_rsp_parse(prsp, CONTROL_PROC_CONTEXT_RSP);
+
+	if (error == 0) {
+		/* Response OK -> get response data */
+		*pvalue = le32_to_cpu((__force __le32)prsp->body.context.rsp.reg_val.u.value32);
+		/* value returned is always a 32-bit value */
+	}
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_set_context - send set context command to AS10x
+ * @adap:      pointer to AS10x bus adapter
+ * @tag:       context tag
+ * @value:     value to set in context
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_set_context(struct as10x_bus_adapter_t *adap, uint16_t tag,
+			  uint32_t value)
+{
+	int error;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.context.req));
+
+	/* fill command */
+	pcmd->body.context.req.proc_id = cpu_to_le16(CONTROL_PROC_CONTEXT);
+	/* pcmd->body.context.req.reg_val.mode initialization is not required */
+	pcmd->body.context.req.reg_val.u.value32 = (__force u32)cpu_to_le32(value);
+	pcmd->body.context.req.tag = cpu_to_le16(tag);
+	pcmd->body.context.req.type = cpu_to_le16(SET_CONTEXT_DATA);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error  = adap->ops->xfer_cmd(adap,
+					     (uint8_t *) pcmd,
+					     sizeof(pcmd->body.context.req)
+					     + HEADER_SIZE,
+					     (uint8_t *) prsp,
+					     sizeof(prsp->body.context.rsp)
+					     + HEADER_SIZE);
+	} else {
+		error = AS10X_CMD_ERROR;
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response: context command do not follow the common response */
+	/* structure -> specific handling response parse required            */
+	error = as10x_context_rsp_parse(prsp, CONTROL_PROC_CONTEXT_RSP);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_eLNA_change_mode - send eLNA change mode command to AS10x
+ * @adap:      pointer to AS10x bus adapter
+ * @mode:      mode selected:
+ *	        - ON    : 0x0 => eLNA always ON
+ *	        - OFF   : 0x1 => eLNA always OFF
+ *	        - AUTO  : 0x2 => eLNA follow hysteresis parameters
+ *				 to be ON or OFF
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_eLNA_change_mode(struct as10x_bus_adapter_t *adap, uint8_t mode)
+{
+	int error;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.cfg_change_mode.req));
+
+	/* fill command */
+	pcmd->body.cfg_change_mode.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_ELNA_CHANGE_MODE);
+	pcmd->body.cfg_change_mode.req.mode = mode;
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error  = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
+				sizeof(pcmd->body.cfg_change_mode.req)
+				+ HEADER_SIZE, (uint8_t *) prsp,
+				sizeof(prsp->body.cfg_change_mode.rsp)
+				+ HEADER_SIZE);
+	} else {
+		error = AS10X_CMD_ERROR;
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_ELNA_CHANGE_MODE_RSP);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_context_rsp_parse - Parse context command response
+ * @prsp:       pointer to AS10x command response buffer
+ * @proc_id:    id of the command
+ *
+ * Since the contex command response does not follow the common
+ * response, a specific parse function is required.
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_context_rsp_parse(struct as10x_cmd_t *prsp, uint16_t proc_id)
+{
+	int err;
+
+	err = prsp->body.context.rsp.error;
+
+	if ((err == 0) &&
+	    (le16_to_cpu(prsp->body.context.rsp.proc_id) == proc_id)) {
+		return 0;
+	}
+	return AS10X_CMD_ERROR;
+}

drivers/media/usb/as102/as10x_cmd_stream.c

@@ -0,0 +1,207 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include "as102_drv.h"
+#include "as10x_cmd.h"
+
+/**
+ * as10x_cmd_add_PID_filter - send add filter command to AS10x
+ * @adap:      pointer to AS10x bus adapter
+ * @filter:    TSFilter filter for DVB-T
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_add_PID_filter(struct as10x_bus_adapter_t *adap,
+			     struct as10x_ts_filter *filter)
+{
+	int error;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.add_pid_filter.req));
+
+	/* fill command */
+	pcmd->body.add_pid_filter.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_SETFILTER);
+	pcmd->body.add_pid_filter.req.pid = cpu_to_le16(filter->pid);
+	pcmd->body.add_pid_filter.req.stream_type = filter->type;
+
+	if (filter->idx < 16)
+		pcmd->body.add_pid_filter.req.idx = filter->idx;
+	else
+		pcmd->body.add_pid_filter.req.idx = 0xFF;
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
+				sizeof(pcmd->body.add_pid_filter.req)
+				+ HEADER_SIZE, (uint8_t *) prsp,
+				sizeof(prsp->body.add_pid_filter.rsp)
+				+ HEADER_SIZE);
+	} else {
+		error = AS10X_CMD_ERROR;
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_SETFILTER_RSP);
+
+	if (error == 0) {
+		/* Response OK -> get response data */
+		filter->idx = prsp->body.add_pid_filter.rsp.filter_id;
+	}
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_del_PID_filter - Send delete filter command to AS10x
+ * @adap:         pointer to AS10x bus adapte
+ * @pid_value:    PID to delete
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_del_PID_filter(struct as10x_bus_adapter_t *adap,
+			     uint16_t pid_value)
+{
+	int error;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.del_pid_filter.req));
+
+	/* fill command */
+	pcmd->body.del_pid_filter.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_REMOVEFILTER);
+	pcmd->body.del_pid_filter.req.pid = cpu_to_le16(pid_value);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
+				sizeof(pcmd->body.del_pid_filter.req)
+				+ HEADER_SIZE, (uint8_t *) prsp,
+				sizeof(prsp->body.del_pid_filter.rsp)
+				+ HEADER_SIZE);
+	} else {
+		error = AS10X_CMD_ERROR;
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_REMOVEFILTER_RSP);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_start_streaming - Send start streaming command to AS10x
+ * @adap:   pointer to AS10x bus adapter
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_start_streaming(struct as10x_bus_adapter_t *adap)
+{
+	int error;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.start_streaming.req));
+
+	/* fill command */
+	pcmd->body.start_streaming.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_START_STREAMING);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
+				sizeof(pcmd->body.start_streaming.req)
+				+ HEADER_SIZE, (uint8_t *) prsp,
+				sizeof(prsp->body.start_streaming.rsp)
+				+ HEADER_SIZE);
+	} else {
+		error = AS10X_CMD_ERROR;
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_START_STREAMING_RSP);
+
+out:
+	return error;
+}
+
+/**
+ * as10x_cmd_stop_streaming - Send stop streaming command to AS10x
+ * @adap:   pointer to AS10x bus adapter
+ *
+ * Return 0 on success or negative value in case of error.
+ */
+int as10x_cmd_stop_streaming(struct as10x_bus_adapter_t *adap)
+{
+	int8_t error;
+	struct as10x_cmd_t *pcmd, *prsp;
+
+	pcmd = adap->cmd;
+	prsp = adap->rsp;
+
+	/* prepare command */
+	as10x_cmd_build(pcmd, (++adap->cmd_xid),
+			sizeof(pcmd->body.stop_streaming.req));
+
+	/* fill command */
+	pcmd->body.stop_streaming.req.proc_id =
+		cpu_to_le16(CONTROL_PROC_STOP_STREAMING);
+
+	/* send command */
+	if (adap->ops->xfer_cmd) {
+		error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
+				sizeof(pcmd->body.stop_streaming.req)
+				+ HEADER_SIZE, (uint8_t *) prsp,
+				sizeof(prsp->body.stop_streaming.rsp)
+				+ HEADER_SIZE);
+	} else {
+		error = AS10X_CMD_ERROR;
+	}
+
+	if (error < 0)
+		goto out;
+
+	/* parse response */
+	error = as10x_rsp_parse(prsp, CONTROL_PROC_STOP_STREAMING_RSP);
+
+out:
+	return error;
+}

drivers/media/usb/as102/as10x_handle.h

@@ -0,0 +1,51 @@
+/*
+ * Abilis Systems Single DVB-T Receiver
+ * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef _AS10X_HANDLE_H
+#define _AS10X_HANDLE_H
+struct as10x_bus_adapter_t;
+struct as102_dev_t;
+
+#include "as10x_cmd.h"
+
+/* values for "mode" field */
+#define REGMODE8	8
+#define REGMODE16	16
+#define REGMODE32	32
+
+struct as102_priv_ops_t {
+	int (*upload_fw_pkt)(struct as10x_bus_adapter_t *bus_adap,
+			      unsigned char *buf, int buflen, int swap32);
+
+	int (*send_cmd)(struct as10x_bus_adapter_t *bus_adap,
+			 unsigned char *buf, int buflen);
+
+	int (*xfer_cmd)(struct as10x_bus_adapter_t *bus_adap,
+			 unsigned char *send_buf, int send_buf_len,
+			 unsigned char *recv_buf, int recv_buf_len);
+
+	int (*start_stream)(struct as102_dev_t *dev);
+	void (*stop_stream)(struct as102_dev_t *dev);
+
+	int (*reset_target)(struct as10x_bus_adapter_t *bus_adap);
+
+	int (*read_write)(struct as10x_bus_adapter_t *bus_adap, uint8_t mode,
+			  uint32_t rd_addr, uint16_t rd_len,
+			  uint32_t wr_addr, uint16_t wr_len);
+
+	int (*as102_read_ep2)(struct as10x_bus_adapter_t *bus_adap,
+			       unsigned char *recv_buf,
+			       int recv_buf_len);
+};
+#endif

drivers/media/usb/au0828/Kconfig

@@ -0,0 +1,36 @@
+
+config VIDEO_AU0828
+	tristate "Auvitek AU0828 support"
+	depends on I2C && INPUT && DVB_CORE && USB
+	select I2C_ALGOBIT
+	select VIDEO_TVEEPROM
+	select VIDEOBUF_VMALLOC
+	select DVB_AU8522_DTV if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_XC5000 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MXL5007T if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_TDA18271 if MEDIA_SUBDRV_AUTOSELECT
+	---help---
+	  This is a hybrid analog/digital tv capture driver for
+	  Auvitek's AU0828 USB device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called au0828
+
+config VIDEO_AU0828_V4L2
+	bool "Auvitek AU0828 v4l2 analog video support"
+	depends on VIDEO_AU0828 && VIDEO_V4L2
+	select DVB_AU8522_V4L if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_TUNER
+	default y
+	---help---
+	  This is a video4linux driver for Auvitek's USB device.
+
+	  Choose Y here to include support for v4l2 analog video
+	  capture within the au0828 driver.
+
+config VIDEO_AU0828_RC
+	bool "AU0828 Remote Controller support"
+	depends on RC_CORE
+	depends on VIDEO_AU0828
+	---help---
+	   Enables Remote Controller support on au0828 driver.

drivers/media/usb/au0828/Makefile

@@ -0,0 +1,17 @@
+au0828-objs	:= au0828-core.o au0828-i2c.o au0828-cards.o au0828-dvb.o
+
+ifeq ($(CONFIG_VIDEO_AU0828_V4L2),y)
+  au0828-objs   += au0828-video.o au0828-vbi.o
+endif
+
+ifeq ($(CONFIG_VIDEO_AU0828_RC),y)
+  au0828-objs   += au0828-input.o
+endif
+
+obj-$(CONFIG_VIDEO_AU0828) += au0828.o
+
+ccflags-y += -Idrivers/media/tuners
+ccflags-y += -Idrivers/media/dvb-core
+ccflags-y += -Idrivers/media/dvb-frontends
+
+ccflags-y += $(extra-cflags-y) $(extra-cflags-m)

drivers/media/usb/au0828/au0828-cards.c

@@ -0,0 +1,362 @@
+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "au0828.h"
+#include "au0828-cards.h"
+#include "au8522.h"
+#include "media/tuner.h"
+#include "media/v4l2-common.h"
+
+static void hvr950q_cs5340_audio(void *priv, int enable)
+{
+	/* Because the HVR-950q shares an i2s bus between the cs5340 and the
+	   au8522, we need to hold cs5340 in reset when using the au8522 */
+	struct au0828_dev *dev = priv;
+	if (enable == 1)
+		au0828_set(dev, REG_000, 0x10);
+	else
+		au0828_clear(dev, REG_000, 0x10);
+}
+
+/*
+ * WARNING: There's a quirks table at sound/usb/quirks-table.h
+ * that should also be updated every time a new device with V4L2 support
+ * is added here.
+ */
+struct au0828_board au0828_boards[] = {
+	[AU0828_BOARD_UNKNOWN] = {
+		.name	= "Unknown board",
+		.tuner_type = UNSET,
+		.tuner_addr = ADDR_UNSET,
+	},
+	[AU0828_BOARD_HAUPPAUGE_HVR850] = {
+		.name	= "Hauppauge HVR850",
+		.tuner_type = TUNER_XC5000,
+		.tuner_addr = 0x61,
+		.has_ir_i2c = 1,
+		.has_analog = 1,
+		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+		.input = {
+			{
+				.type = AU0828_VMUX_TELEVISION,
+				.vmux = AU8522_COMPOSITE_CH4_SIF,
+				.amux = AU8522_AUDIO_SIF,
+			},
+			{
+				.type = AU0828_VMUX_COMPOSITE,
+				.vmux = AU8522_COMPOSITE_CH1,
+				.amux = AU8522_AUDIO_NONE,
+				.audio_setup = hvr950q_cs5340_audio,
+			},
+			{
+				.type = AU0828_VMUX_SVIDEO,
+				.vmux = AU8522_SVIDEO_CH13,
+				.amux = AU8522_AUDIO_NONE,
+				.audio_setup = hvr950q_cs5340_audio,
+			},
+		},
+	},
+	[AU0828_BOARD_HAUPPAUGE_HVR950Q] = {
+		.name	= "Hauppauge HVR950Q",
+		.tuner_type = TUNER_XC5000,
+		.tuner_addr = 0x61,
+		.has_ir_i2c = 1,
+		.has_analog = 1,
+		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+		.input = {
+			{
+				.type = AU0828_VMUX_TELEVISION,
+				.vmux = AU8522_COMPOSITE_CH4_SIF,
+				.amux = AU8522_AUDIO_SIF,
+			},
+			{
+				.type = AU0828_VMUX_COMPOSITE,
+				.vmux = AU8522_COMPOSITE_CH1,
+				.amux = AU8522_AUDIO_NONE,
+				.audio_setup = hvr950q_cs5340_audio,
+			},
+			{
+				.type = AU0828_VMUX_SVIDEO,
+				.vmux = AU8522_SVIDEO_CH13,
+				.amux = AU8522_AUDIO_NONE,
+				.audio_setup = hvr950q_cs5340_audio,
+			},
+		},
+	},
+	[AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL] = {
+		.name	= "Hauppauge HVR950Q rev xxF8",
+		.tuner_type = TUNER_XC5000,
+		.tuner_addr = 0x61,
+		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+	},
+	[AU0828_BOARD_DVICO_FUSIONHDTV7] = {
+		.name	= "DViCO FusionHDTV USB",
+		.tuner_type = TUNER_XC5000,
+		.tuner_addr = 0x61,
+		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+	},
+	[AU0828_BOARD_HAUPPAUGE_WOODBURY] = {
+		.name = "Hauppauge Woodbury",
+		.tuner_type = TUNER_NXP_TDA18271,
+		.tuner_addr = 0x60,
+		.i2c_clk_divider = AU0828_I2C_CLK_250KHZ,
+	},
+};
+
+/* Tuner callback function for au0828 boards. Currently only needed
+ * for HVR1500Q, which has an xc5000 tuner.
+ */
+int au0828_tuner_callback(void *priv, int component, int command, int arg)
+{
+	struct au0828_dev *dev = priv;
+
+	dprintk(1, "%s()\n", __func__);
+
+	switch (dev->boardnr) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+	case AU0828_BOARD_DVICO_FUSIONHDTV7:
+		if (command == 0) {
+			/* Tuner Reset Command from xc5000 */
+			/* Drive the tuner into reset and out */
+			au0828_clear(dev, REG_001, 2);
+			mdelay(10);
+			au0828_set(dev, REG_001, 2);
+			mdelay(10);
+			return 0;
+		} else {
+			pr_err("%s(): Unknown command.\n", __func__);
+			return -EINVAL;
+		}
+		break;
+	}
+
+	return 0; /* Should never be here */
+}
+
+static void hauppauge_eeprom(struct au0828_dev *dev, u8 *eeprom_data)
+{
+	struct tveeprom tv;
+
+	tveeprom_hauppauge_analog(&dev->i2c_client, &tv, eeprom_data);
+	dev->board.tuner_type = tv.tuner_type;
+
+	/* Make sure we support the board model */
+	switch (tv.model) {
+	case 72000: /* WinTV-HVR950q (Retail, IR, ATSC/QAM */
+	case 72001: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+	case 72101: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+	case 72201: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+	case 72211: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+	case 72221: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+	case 72231: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and analog video */
+	case 72241: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+	case 72251: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and analog video */
+	case 72261: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+	case 72271: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+	case 72281: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and analog video */
+	case 72301: /* WinTV-HVR850 (Retail, IR, ATSC and analog video */
+	case 72500: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM */
+		break;
+	default:
+		pr_warn("%s: warning: unknown hauppauge model #%d\n",
+			__func__, tv.model);
+		break;
+	}
+
+	pr_info("%s: hauppauge eeprom: model=%d\n",
+	       __func__, tv.model);
+}
+
+void au0828_card_analog_fe_setup(struct au0828_dev *dev);
+
+void au0828_card_setup(struct au0828_dev *dev)
+{
+	static u8 eeprom[256];
+
+	dprintk(1, "%s()\n", __func__);
+
+	dev->board = au0828_boards[dev->boardnr];
+
+	if (dev->i2c_rc == 0) {
+		dev->i2c_client.addr = 0xa0 >> 1;
+		tveeprom_read(&dev->i2c_client, eeprom, sizeof(eeprom));
+	}
+
+	switch (dev->boardnr) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
+		if (dev->i2c_rc == 0)
+			hauppauge_eeprom(dev, eeprom+0xa0);
+		break;
+	}
+
+	au0828_card_analog_fe_setup(dev);
+}
+
+void au0828_card_analog_fe_setup(struct au0828_dev *dev)
+{
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+	struct tuner_setup tun_setup;
+	struct v4l2_subdev *sd;
+	unsigned int mode_mask = T_ANALOG_TV;
+
+	if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) {
+		/* Load the analog demodulator driver (note this would need to
+		   be abstracted out if we ever need to support a different
+		   demod) */
+		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
+				"au8522", 0x8e >> 1, NULL);
+		if (sd == NULL)
+			pr_err("analog subdev registration failed\n");
+	}
+
+	/* Setup tuners */
+	if (dev->board.tuner_type != TUNER_ABSENT && dev->board.has_analog) {
+		/* Load the tuner module, which does the attach */
+		sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
+				"tuner", dev->board.tuner_addr, NULL);
+		if (sd == NULL)
+			pr_err("tuner subdev registration fail\n");
+
+		tun_setup.mode_mask      = mode_mask;
+		tun_setup.type           = dev->board.tuner_type;
+		tun_setup.addr           = dev->board.tuner_addr;
+		tun_setup.tuner_callback = au0828_tuner_callback;
+		v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr,
+				     &tun_setup);
+	}
+#endif
+}
+
+/*
+ * The bridge has between 8 and 12 gpios.
+ * Regs 1 and 0 deal with output enables.
+ * Regs 3 and 2 deal with direction.
+ */
+void au0828_gpio_setup(struct au0828_dev *dev)
+{
+	dprintk(1, "%s()\n", __func__);
+
+	switch (dev->boardnr) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
+		/* GPIO's
+		 * 4 - CS5340
+		 * 5 - AU8522 Demodulator
+		 * 6 - eeprom W/P
+		 * 7 - power supply
+		 * 9 - XC5000 Tuner
+		 */
+
+		/* Set relevant GPIOs as outputs (leave the EEPROM W/P
+		   as an input since we will never touch it and it has
+		   a pullup) */
+		au0828_write(dev, REG_003, 0x02);
+		au0828_write(dev, REG_002, 0x80 | 0x20 | 0x10);
+
+		/* Into reset */
+		au0828_write(dev, REG_001, 0x0);
+		au0828_write(dev, REG_000, 0x0);
+		msleep(50);
+
+		/* Bring power supply out of reset */
+		au0828_write(dev, REG_000, 0x80);
+		msleep(50);
+
+		/* Bring xc5000 and au8522 out of reset (leave the
+		   cs5340 in reset until needed) */
+		au0828_write(dev, REG_001, 0x02); /* xc5000 */
+		au0828_write(dev, REG_000, 0x80 | 0x20); /* PS + au8522 */
+
+		msleep(250);
+		break;
+	case AU0828_BOARD_DVICO_FUSIONHDTV7:
+		/* GPIO's
+		 * 6 - ?
+		 * 8 - AU8522 Demodulator
+		 * 9 - XC5000 Tuner
+		 */
+
+		/* Into reset */
+		au0828_write(dev, REG_003, 0x02);
+		au0828_write(dev, REG_002, 0xa0);
+		au0828_write(dev, REG_001, 0x0);
+		au0828_write(dev, REG_000, 0x0);
+		msleep(100);
+
+		/* Out of reset */
+		au0828_write(dev, REG_003, 0x02);
+		au0828_write(dev, REG_002, 0xa0);
+		au0828_write(dev, REG_001, 0x02);
+		au0828_write(dev, REG_000, 0xa0);
+		msleep(250);
+		break;
+	}
+}
+
+/* table of devices that work with this driver */
+struct usb_device_id au0828_usb_id_table[] = {
+	{ USB_DEVICE(0x2040, 0x7200),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x7240),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR850 },
+	{ USB_DEVICE(0x0fe9, 0xd620),
+		.driver_info = AU0828_BOARD_DVICO_FUSIONHDTV7 },
+	{ USB_DEVICE(0x2040, 0x7210),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x7217),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x721b),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x721e),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x721f),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x7280),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x0fd9, 0x0008),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x7201),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
+	{ USB_DEVICE(0x2040, 0x7211),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
+	{ USB_DEVICE(0x2040, 0x7281),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL },
+	{ USB_DEVICE(0x05e1, 0x0480),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY },
+	{ USB_DEVICE(0x2040, 0x8200),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_WOODBURY },
+	{ USB_DEVICE(0x2040, 0x7260),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x7213),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ USB_DEVICE(0x2040, 0x7270),
+		.driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(usb, au0828_usb_id_table);

drivers/media/usb/au0828/au0828-cards.h

@@ -0,0 +1,27 @@
+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define AU0828_BOARD_UNKNOWN		0
+#define AU0828_BOARD_HAUPPAUGE_HVR950Q	1
+#define AU0828_BOARD_HAUPPAUGE_HVR850 	2
+#define AU0828_BOARD_DVICO_FUSIONHDTV7	3
+#define AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL	4
+#define AU0828_BOARD_HAUPPAUGE_WOODBURY	5

drivers/media/usb/au0828/au0828-core.c

@@ -0,0 +1,376 @@
+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+
+/*
+ * 1 = General debug messages
+ * 2 = USB handling
+ * 4 = I2C related
+ * 8 = Bridge related
+ * 16 = IR related
+ */
+int au0828_debug;
+module_param_named(debug, au0828_debug, int, 0644);
+MODULE_PARM_DESC(debug,
+		 "set debug bitmask: 1=general, 2=USB, 4=I2C, 8=bridge, 16=IR");
+
+static unsigned int disable_usb_speed_check;
+module_param(disable_usb_speed_check, int, 0444);
+MODULE_PARM_DESC(disable_usb_speed_check,
+		 "override min bandwidth requirement of 480M bps");
+
+#define _AU0828_BULKPIPE 0x03
+#define _BULKPIPESIZE 0xffff
+
+static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+			    u16 index);
+static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+	u16 index, unsigned char *cp, u16 size);
+
+/* USB Direction */
+#define CMD_REQUEST_IN		0x00
+#define CMD_REQUEST_OUT		0x01
+
+u32 au0828_readreg(struct au0828_dev *dev, u16 reg)
+{
+	u8 result = 0;
+
+	recv_control_msg(dev, CMD_REQUEST_IN, 0, reg, &result, 1);
+	dprintk(8, "%s(0x%04x) = 0x%02x\n", __func__, reg, result);
+
+	return result;
+}
+
+u32 au0828_writereg(struct au0828_dev *dev, u16 reg, u32 val)
+{
+	dprintk(8, "%s(0x%04x, 0x%02x)\n", __func__, reg, val);
+	return send_control_msg(dev, CMD_REQUEST_OUT, val, reg);
+}
+
+static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+	u16 index)
+{
+	int status = -ENODEV;
+
+	if (dev->usbdev) {
+
+		/* cp must be memory that has been allocated by kmalloc */
+		status = usb_control_msg(dev->usbdev,
+				usb_sndctrlpipe(dev->usbdev, 0),
+				request,
+				USB_DIR_OUT | USB_TYPE_VENDOR |
+					USB_RECIP_DEVICE,
+				value, index, NULL, 0, 1000);
+
+		status = min(status, 0);
+
+		if (status < 0) {
+			pr_err("%s() Failed sending control message, error %d.\n",
+				__func__, status);
+		}
+
+	}
+
+	return status;
+}
+
+static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
+	u16 index, unsigned char *cp, u16 size)
+{
+	int status = -ENODEV;
+	mutex_lock(&dev->mutex);
+	if (dev->usbdev) {
+		status = usb_control_msg(dev->usbdev,
+				usb_rcvctrlpipe(dev->usbdev, 0),
+				request,
+				USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				value, index,
+				dev->ctrlmsg, size, 1000);
+
+		status = min(status, 0);
+
+		if (status < 0) {
+			pr_err("%s() Failed receiving control message, error %d.\n",
+				__func__, status);
+		}
+
+		/* the host controller requires heap allocated memory, which
+		   is why we didn't just pass "cp" into usb_control_msg */
+		memcpy(cp, dev->ctrlmsg, size);
+	}
+	mutex_unlock(&dev->mutex);
+	return status;
+}
+
+static void au0828_usb_release(struct au0828_dev *dev)
+{
+	/* I2C */
+	au0828_i2c_unregister(dev);
+
+	kfree(dev);
+}
+
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev)
+{
+	struct au0828_dev *dev =
+		container_of(v4l2_dev, struct au0828_dev, v4l2_dev);
+
+	v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl);
+	v4l2_device_unregister(&dev->v4l2_dev);
+	au0828_usb_release(dev);
+}
+#endif
+
+static void au0828_usb_disconnect(struct usb_interface *interface)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+
+	dprintk(1, "%s()\n", __func__);
+
+	au0828_rc_unregister(dev);
+	/* Digital TV */
+	au0828_dvb_unregister(dev);
+
+	usb_set_intfdata(interface, NULL);
+	mutex_lock(&dev->mutex);
+	dev->usbdev = NULL;
+	mutex_unlock(&dev->mutex);
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+	if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) {
+		au0828_analog_unregister(dev);
+		v4l2_device_disconnect(&dev->v4l2_dev);
+		v4l2_device_put(&dev->v4l2_dev);
+		return;
+	}
+#endif
+	au0828_usb_release(dev);
+}
+
+static int au0828_usb_probe(struct usb_interface *interface,
+	const struct usb_device_id *id)
+{
+	int ifnum;
+	int retval = 0;
+
+	struct au0828_dev *dev;
+	struct usb_device *usbdev = interface_to_usbdev(interface);
+
+	ifnum = interface->altsetting->desc.bInterfaceNumber;
+
+	if (ifnum != 0)
+		return -ENODEV;
+
+	dprintk(1, "%s() vendor id 0x%x device id 0x%x ifnum:%d\n", __func__,
+		le16_to_cpu(usbdev->descriptor.idVendor),
+		le16_to_cpu(usbdev->descriptor.idProduct),
+		ifnum);
+
+	/*
+	 * Make sure we have 480 Mbps of bandwidth, otherwise things like
+	 * video stream wouldn't likely work, since 12 Mbps is generally
+	 * not enough even for most Digital TV streams.
+	 */
+	if (usbdev->speed != USB_SPEED_HIGH && disable_usb_speed_check == 0) {
+		pr_err("au0828: Device initialization failed.\n");
+		pr_err("au0828: Device must be connected to a high-speed USB 2.0 port.\n");
+		return -ENODEV;
+	}
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL) {
+		pr_err("%s() Unable to allocate memory\n", __func__);
+		return -ENOMEM;
+	}
+
+	mutex_init(&dev->lock);
+	mutex_lock(&dev->lock);
+	mutex_init(&dev->mutex);
+	mutex_init(&dev->dvb.lock);
+	dev->usbdev = usbdev;
+	dev->boardnr = id->driver_info;
+
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+	dev->v4l2_dev.release = au0828_usb_v4l2_release;
+
+	/* Create the v4l2_device */
+	retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
+	if (retval) {
+		pr_err("%s() v4l2_device_register failed\n",
+		       __func__);
+		mutex_unlock(&dev->lock);
+		kfree(dev);
+		return retval;
+	}
+	/* This control handler will inherit the controls from au8522 */
+	retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4);
+	if (retval) {
+		pr_err("%s() v4l2_ctrl_handler_init failed\n",
+		       __func__);
+		mutex_unlock(&dev->lock);
+		kfree(dev);
+		return retval;
+	}
+	dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl;
+#endif
+
+	/* Power Up the bridge */
+	au0828_write(dev, REG_600, 1 << 4);
+
+	/* Bring up the GPIO's and supporting devices */
+	au0828_gpio_setup(dev);
+
+	/* I2C */
+	au0828_i2c_register(dev);
+
+	/* Setup */
+	au0828_card_setup(dev);
+
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+	/* Analog TV */
+	if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED)
+		au0828_analog_register(dev, interface);
+#endif
+
+	/* Digital TV */
+	retval = au0828_dvb_register(dev);
+	if (retval)
+		pr_err("%s() au0282_dev_register failed\n",
+		       __func__);
+
+	/* Remote controller */
+	au0828_rc_register(dev);
+
+	/*
+	 * Store the pointer to the au0828_dev so it can be accessed in
+	 * au0828_usb_disconnect
+	 */
+	usb_set_intfdata(interface, dev);
+
+	pr_info("Registered device AU0828 [%s]\n",
+		dev->board.name == NULL ? "Unset" : dev->board.name);
+
+	mutex_unlock(&dev->lock);
+
+	return retval;
+}
+
+static int au0828_suspend(struct usb_interface *interface,
+				pm_message_t message)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+
+	if (!dev)
+		return 0;
+
+	pr_info("Suspend\n");
+
+	au0828_rc_suspend(dev);
+	au0828_v4l2_suspend(dev);
+	au0828_dvb_suspend(dev);
+
+	/* FIXME: should suspend also ATV/DTV */
+
+	return 0;
+}
+
+static int au0828_resume(struct usb_interface *interface)
+{
+	struct au0828_dev *dev = usb_get_intfdata(interface);
+	if (!dev)
+		return 0;
+
+	pr_info("Resume\n");
+
+	/* Power Up the bridge */
+	au0828_write(dev, REG_600, 1 << 4);
+
+	/* Bring up the GPIO's and supporting devices */
+	au0828_gpio_setup(dev);
+
+	au0828_rc_resume(dev);
+	au0828_v4l2_resume(dev);
+	au0828_dvb_resume(dev);
+
+	/* FIXME: should resume also ATV/DTV */
+
+	return 0;
+}
+
+static struct usb_driver au0828_usb_driver = {
+	.name		= KBUILD_MODNAME,
+	.probe		= au0828_usb_probe,
+	.disconnect	= au0828_usb_disconnect,
+	.id_table	= au0828_usb_id_table,
+	.suspend	= au0828_suspend,
+	.resume		= au0828_resume,
+	.reset_resume	= au0828_resume,
+};
+
+static int __init au0828_init(void)
+{
+	int ret;
+
+	if (au0828_debug & 1)
+		pr_info("%s() Debugging is enabled\n", __func__);
+
+	if (au0828_debug & 2)
+		pr_info("%s() USB Debugging is enabled\n", __func__);
+
+	if (au0828_debug & 4)
+		pr_info("%s() I2C Debugging is enabled\n", __func__);
+
+	if (au0828_debug & 8)
+		pr_info("%s() Bridge Debugging is enabled\n",
+		       __func__);
+
+	if (au0828_debug & 16)
+		pr_info("%s() IR Debugging is enabled\n",
+		       __func__);
+
+	pr_info("au0828 driver loaded\n");
+
+	ret = usb_register(&au0828_usb_driver);
+	if (ret)
+		pr_err("usb_register failed, error = %d\n", ret);
+
+	return ret;
+}
+
+static void __exit au0828_exit(void)
+{
+	usb_deregister(&au0828_usb_driver);
+}
+
+module_init(au0828_init);
+module_exit(au0828_exit);
+
+MODULE_DESCRIPTION("Driver for Auvitek AU0828 based products");
+MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.0.3");

drivers/media/usb/au0828/au0828-dvb.c

@@ -0,0 +1,658 @@
+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <media/v4l2-common.h>
+#include <media/tuner.h>
+
+#include "au8522.h"
+#include "xc5000.h"
+#include "mxl5007t.h"
+#include "tda18271.h"
+
+static int preallocate_big_buffers;
+module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
+MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+#define _AU0828_BULKPIPE 0x83
+#define _BULKPIPESIZE 0xe522
+
+static u8 hauppauge_hvr950q_led_states[] = {
+	0x00, /* off */
+	0x02, /* yellow */
+	0x04, /* green */
+};
+
+static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
+	.gpio_output = 0x00e0,
+	.gpio_output_enable  = 0x6006,
+	.gpio_output_disable = 0x0660,
+
+	.gpio_leds = 0x00e2,
+	.led_states  = hauppauge_hvr950q_led_states,
+	.num_led_states = sizeof(hauppauge_hvr950q_led_states),
+
+	.vsb8_strong   = 20 /* dB */ * 10,
+	.qam64_strong  = 25 /* dB */ * 10,
+	.qam256_strong = 32 /* dB */ * 10,
+};
+
+static struct au8522_config hauppauge_hvr950q_config = {
+	.demod_address = 0x8e >> 1,
+	.status_mode   = AU8522_DEMODLOCKING,
+	.qam_if        = AU8522_IF_6MHZ,
+	.vsb_if        = AU8522_IF_6MHZ,
+	.led_cfg       = &hauppauge_hvr950q_led_cfg,
+};
+
+static struct au8522_config fusionhdtv7usb_config = {
+	.demod_address = 0x8e >> 1,
+	.status_mode   = AU8522_DEMODLOCKING,
+	.qam_if        = AU8522_IF_6MHZ,
+	.vsb_if        = AU8522_IF_6MHZ,
+};
+
+static struct au8522_config hauppauge_woodbury_config = {
+	.demod_address = 0x8e >> 1,
+	.status_mode   = AU8522_DEMODLOCKING,
+	.qam_if        = AU8522_IF_4MHZ,
+	.vsb_if        = AU8522_IF_3_25MHZ,
+};
+
+static struct xc5000_config hauppauge_xc5000a_config = {
+	.i2c_address      = 0x61,
+	.if_khz           = 6000,
+	.chip_id          = XC5000A,
+};
+
+static struct xc5000_config hauppauge_xc5000c_config = {
+	.i2c_address      = 0x61,
+	.if_khz           = 6000,
+	.chip_id          = XC5000C,
+};
+
+static struct mxl5007t_config mxl5007t_hvr950q_config = {
+	.xtal_freq_hz = MxL_XTAL_24_MHZ,
+	.if_freq_hz = MxL_IF_6_MHZ,
+};
+
+static struct tda18271_config hauppauge_woodbury_tunerconfig = {
+	.gate    = TDA18271_GATE_DIGITAL,
+};
+
+static void au0828_restart_dvb_streaming(struct work_struct *work);
+
+/*-------------------------------------------------------------------*/
+static void urb_completion(struct urb *purb)
+{
+	struct au0828_dev *dev = purb->context;
+	int ptype = usb_pipetype(purb->pipe);
+	unsigned char *ptr;
+
+	dprintk(2, "%s: %d\n", __func__, purb->actual_length);
+
+	if (!dev) {
+		dprintk(2, "%s: no dev!\n", __func__);
+		return;
+	}
+
+	if (!dev->urb_streaming) {
+		dprintk(2, "%s: not streaming!\n", __func__);
+		return;
+	}
+
+	if (ptype != PIPE_BULK) {
+		pr_err("%s: Unsupported URB type %d\n",
+		       __func__, ptype);
+		return;
+	}
+
+	/* See if the stream is corrupted (to work around a hardware
+	   bug where the stream gets misaligned */
+	ptr = purb->transfer_buffer;
+	if (purb->actual_length > 0 && ptr[0] != 0x47) {
+		dprintk(1, "Need to restart streaming %02x len=%d!\n",
+			ptr[0], purb->actual_length);
+		schedule_work(&dev->restart_streaming);
+		return;
+	}
+
+	/* Feed the transport payload into the kernel demux */
+	dvb_dmx_swfilter_packets(&dev->dvb.demux,
+		purb->transfer_buffer, purb->actual_length / 188);
+
+	/* Clean the buffer before we requeue */
+	memset(purb->transfer_buffer, 0, URB_BUFSIZE);
+
+	/* Requeue URB */
+	usb_submit_urb(purb, GFP_ATOMIC);
+}
+
+static int stop_urb_transfer(struct au0828_dev *dev)
+{
+	int i;
+
+	dprintk(2, "%s()\n", __func__);
+
+	if (!dev->urb_streaming)
+		return 0;
+
+	dev->urb_streaming = false;
+	for (i = 0; i < URB_COUNT; i++) {
+		if (dev->urbs[i]) {
+			usb_kill_urb(dev->urbs[i]);
+			if (!preallocate_big_buffers)
+				kfree(dev->urbs[i]->transfer_buffer);
+
+			usb_free_urb(dev->urbs[i]);
+		}
+	}
+
+	return 0;
+}
+
+static int start_urb_transfer(struct au0828_dev *dev)
+{
+	struct urb *purb;
+	int i, ret = -ENOMEM;
+
+	dprintk(2, "%s()\n", __func__);
+
+	if (dev->urb_streaming) {
+		dprintk(2, "%s: bulk xfer already running!\n", __func__);
+		return 0;
+	}
+
+	for (i = 0; i < URB_COUNT; i++) {
+
+		dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!dev->urbs[i])
+			goto err;
+
+		purb = dev->urbs[i];
+
+		if (preallocate_big_buffers)
+			purb->transfer_buffer = dev->dig_transfer_buffer[i];
+		else
+			purb->transfer_buffer = kzalloc(URB_BUFSIZE,
+					GFP_KERNEL);
+
+		if (!purb->transfer_buffer) {
+			usb_free_urb(purb);
+			dev->urbs[i] = NULL;
+			pr_err("%s: failed big buffer allocation, err = %d\n",
+			       __func__, ret);
+			goto err;
+		}
+
+		purb->status = -EINPROGRESS;
+		usb_fill_bulk_urb(purb,
+				  dev->usbdev,
+				  usb_rcvbulkpipe(dev->usbdev,
+					_AU0828_BULKPIPE),
+				  purb->transfer_buffer,
+				  URB_BUFSIZE,
+				  urb_completion,
+				  dev);
+
+	}
+
+	for (i = 0; i < URB_COUNT; i++) {
+		ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
+		if (ret != 0) {
+			stop_urb_transfer(dev);
+			pr_err("%s: failed urb submission, err = %d\n",
+			       __func__, ret);
+			return ret;
+		}
+	}
+
+	dev->urb_streaming = true;
+	ret = 0;
+
+err:
+	return ret;
+}
+
+static void au0828_start_transport(struct au0828_dev *dev)
+{
+	au0828_write(dev, 0x608, 0x90);
+	au0828_write(dev, 0x609, 0x72);
+	au0828_write(dev, 0x60a, 0x71);
+	au0828_write(dev, 0x60b, 0x01);
+
+}
+
+static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
+{
+	if (full_stop) {
+		au0828_write(dev, 0x608, 0x00);
+		au0828_write(dev, 0x609, 0x00);
+		au0828_write(dev, 0x60a, 0x00);
+	}
+	au0828_write(dev, 0x60b, 0x00);
+}
+
+static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret = 0;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (!demux->dmx.frontend)
+		return -EINVAL;
+
+	if (dvb->frontend) {
+		mutex_lock(&dvb->lock);
+		dvb->start_count++;
+		dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
+			dvb->start_count, dvb->stop_count);
+		if (dvb->feeding++ == 0) {
+			/* Start transport */
+			au0828_start_transport(dev);
+			ret = start_urb_transfer(dev);
+			if (ret < 0) {
+				au0828_stop_transport(dev, 0);
+				dvb->feeding--;	/* We ran out of memory... */
+			}
+		}
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret = 0;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (dvb->frontend) {
+		cancel_work_sync(&dev->restart_streaming);
+
+		mutex_lock(&dvb->lock);
+		dvb->stop_count++;
+		dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
+			dvb->start_count, dvb->stop_count);
+		if (dvb->feeding > 0) {
+			dvb->feeding--;
+			if (dvb->feeding == 0) {
+				/* Stop transport */
+				ret = stop_urb_transfer(dev);
+				au0828_stop_transport(dev, 0);
+			}
+		}
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+static void au0828_restart_dvb_streaming(struct work_struct *work)
+{
+	struct au0828_dev *dev = container_of(work, struct au0828_dev,
+					      restart_streaming);
+	struct au0828_dvb *dvb = &dev->dvb;
+
+	if (!dev->urb_streaming)
+		return;
+
+	dprintk(1, "Restarting streaming...!\n");
+
+	mutex_lock(&dvb->lock);
+
+	/* Stop transport */
+	stop_urb_transfer(dev);
+	au0828_stop_transport(dev, 1);
+
+	/* Start transport */
+	au0828_start_transport(dev);
+	start_urb_transfer(dev);
+
+	mutex_unlock(&dvb->lock);
+}
+
+static int au0828_set_frontend(struct dvb_frontend *fe)
+{
+	struct au0828_dev *dev = fe->dvb->priv;
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret, was_streaming;
+
+	mutex_lock(&dvb->lock);
+	was_streaming = dev->urb_streaming;
+	if (was_streaming) {
+		au0828_stop_transport(dev, 1);
+
+		/*
+		 * We can't hold a mutex here, as the restart_streaming
+		 * kthread may also hold it.
+		 */
+		mutex_unlock(&dvb->lock);
+		cancel_work_sync(&dev->restart_streaming);
+		mutex_lock(&dvb->lock);
+
+		stop_urb_transfer(dev);
+	}
+	mutex_unlock(&dvb->lock);
+
+	ret = dvb->set_frontend(fe);
+
+	if (was_streaming) {
+		mutex_lock(&dvb->lock);
+		au0828_start_transport(dev);
+		start_urb_transfer(dev);
+		mutex_unlock(&dvb->lock);
+	}
+
+	return ret;
+}
+
+static int dvb_register(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int result;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (preallocate_big_buffers) {
+		int i;
+		for (i = 0; i < URB_COUNT; i++) {
+			dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
+					GFP_KERNEL);
+
+			if (!dev->dig_transfer_buffer[i]) {
+				result = -ENOMEM;
+
+				pr_err("failed buffer allocation (errno = %d)\n",
+				       result);
+				goto fail_adapter;
+			}
+		}
+	}
+
+	INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
+
+	/* register adapter */
+	result = dvb_register_adapter(&dvb->adapter,
+				      KBUILD_MODNAME, THIS_MODULE,
+				      &dev->usbdev->dev, adapter_nr);
+	if (result < 0) {
+		pr_err("dvb_register_adapter failed (errno = %d)\n",
+		       result);
+		goto fail_adapter;
+	}
+	dvb->adapter.priv = dev;
+
+	/* register frontend */
+	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
+	if (result < 0) {
+		pr_err("dvb_register_frontend failed (errno = %d)\n",
+		       result);
+		goto fail_frontend;
+	}
+
+	/* Hook dvb frontend */
+	dvb->set_frontend = dvb->frontend->ops.set_frontend;
+	dvb->frontend->ops.set_frontend = au0828_set_frontend;
+
+	/* register demux stuff */
+	dvb->demux.dmx.capabilities =
+		DMX_TS_FILTERING | DMX_SECTION_FILTERING |
+		DMX_MEMORY_BASED_FILTERING;
+	dvb->demux.priv       = dev;
+	dvb->demux.filternum  = 256;
+	dvb->demux.feednum    = 256;
+	dvb->demux.start_feed = au0828_dvb_start_feed;
+	dvb->demux.stop_feed  = au0828_dvb_stop_feed;
+	result = dvb_dmx_init(&dvb->demux);
+	if (result < 0) {
+		pr_err("dvb_dmx_init failed (errno = %d)\n", result);
+		goto fail_dmx;
+	}
+
+	dvb->dmxdev.filternum    = 256;
+	dvb->dmxdev.demux        = &dvb->demux.dmx;
+	dvb->dmxdev.capabilities = 0;
+	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
+	if (result < 0) {
+		pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
+		goto fail_dmxdev;
+	}
+
+	dvb->fe_hw.source = DMX_FRONTEND_0;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
+		       result);
+		goto fail_fe_hw;
+	}
+
+	dvb->fe_mem.source = DMX_MEMORY_FE;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	if (result < 0) {
+		pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
+		       result);
+		goto fail_fe_mem;
+	}
+
+	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		pr_err("connect_frontend failed (errno = %d)\n", result);
+		goto fail_fe_conn;
+	}
+
+	/* register network adapter */
+	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
+
+	dvb->start_count = 0;
+	dvb->stop_count = 0;
+	return 0;
+
+fail_fe_conn:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+fail_fe_mem:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+fail_fe_hw:
+	dvb_dmxdev_release(&dvb->dmxdev);
+fail_dmxdev:
+	dvb_dmx_release(&dvb->demux);
+fail_dmx:
+	dvb_unregister_frontend(dvb->frontend);
+fail_frontend:
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+fail_adapter:
+
+	if (preallocate_big_buffers) {
+		int i;
+		for (i = 0; i < URB_COUNT; i++)
+			kfree(dev->dig_transfer_buffer[i]);
+	}
+
+	return result;
+}
+
+void au0828_dvb_unregister(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (dvb->frontend == NULL)
+		return;
+
+	cancel_work_sync(&dev->restart_streaming);
+
+	dvb_net_release(&dvb->net);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	dvb_dmxdev_release(&dvb->dmxdev);
+	dvb_dmx_release(&dvb->demux);
+	dvb_unregister_frontend(dvb->frontend);
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+
+	if (preallocate_big_buffers) {
+		int i;
+		for (i = 0; i < URB_COUNT; i++)
+			kfree(dev->dig_transfer_buffer[i]);
+	}
+	dvb->frontend = NULL;
+}
+
+/* All the DVB attach calls go here, this function get's modified
+ * for each new card. No other function in this file needs
+ * to change.
+ */
+int au0828_dvb_register(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int ret;
+
+	dprintk(1, "%s()\n", __func__);
+
+	/* init frontend */
+	switch (dev->boardnr) {
+	case AU0828_BOARD_HAUPPAUGE_HVR850:
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&hauppauge_hvr950q_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL)
+			switch (dev->board.tuner_type) {
+			default:
+			case TUNER_XC5000:
+				dvb_attach(xc5000_attach, dvb->frontend,
+					   &dev->i2c_adap,
+					   &hauppauge_xc5000a_config);
+				break;
+			case TUNER_XC5000C:
+				dvb_attach(xc5000_attach, dvb->frontend,
+					   &dev->i2c_adap,
+					   &hauppauge_xc5000c_config);
+				break;
+			}
+		break;
+	case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&hauppauge_hvr950q_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL)
+			dvb_attach(mxl5007t_attach, dvb->frontend,
+				   &dev->i2c_adap, 0x60,
+				   &mxl5007t_hvr950q_config);
+		break;
+	case AU0828_BOARD_HAUPPAUGE_WOODBURY:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&hauppauge_woodbury_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL)
+			dvb_attach(tda18271_attach, dvb->frontend,
+				   0x60, &dev->i2c_adap,
+				   &hauppauge_woodbury_tunerconfig);
+		break;
+	case AU0828_BOARD_DVICO_FUSIONHDTV7:
+		dvb->frontend = dvb_attach(au8522_attach,
+				&fusionhdtv7usb_config,
+				&dev->i2c_adap);
+		if (dvb->frontend != NULL) {
+			dvb_attach(xc5000_attach, dvb->frontend,
+				&dev->i2c_adap,
+				&hauppauge_xc5000a_config);
+		}
+		break;
+	default:
+		pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
+		break;
+	}
+	if (NULL == dvb->frontend) {
+		pr_err("%s() Frontend initialization failed\n",
+		       __func__);
+		return -1;
+	}
+	/* define general-purpose callback pointer */
+	dvb->frontend->callback = au0828_tuner_callback;
+
+	/* register everything */
+	ret = dvb_register(dev);
+	if (ret < 0) {
+		if (dvb->frontend->ops.release)
+			dvb->frontend->ops.release(dvb->frontend);
+		dvb->frontend = NULL;
+		return ret;
+	}
+
+	return 0;
+}
+
+void au0828_dvb_suspend(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int rc;
+
+	if (dvb->frontend) {
+		if (dev->urb_streaming) {
+			cancel_work_sync(&dev->restart_streaming);
+			/* Stop transport */
+			mutex_lock(&dvb->lock);
+			stop_urb_transfer(dev);
+			au0828_stop_transport(dev, 1);
+			mutex_unlock(&dvb->lock);
+			dev->need_urb_start = true;
+		}
+		/* suspend frontend - does tuner and fe to sleep */
+		rc = dvb_frontend_suspend(dvb->frontend);
+		pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
+	}
+}
+
+void au0828_dvb_resume(struct au0828_dev *dev)
+{
+	struct au0828_dvb *dvb = &dev->dvb;
+	int rc;
+
+	if (dvb->frontend) {
+		/* resume frontend - does fe and tuner init */
+		rc = dvb_frontend_resume(dvb->frontend);
+		pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
+		if (dev->need_urb_start) {
+			/* Start transport */
+			mutex_lock(&dvb->lock);
+			au0828_start_transport(dev);
+			start_urb_transfer(dev);
+			mutex_unlock(&dvb->lock);
+		}
+	}
+}

drivers/media/usb/au0828/au0828-i2c.c

@@ -0,0 +1,414 @@
+/*
+ *  Driver for the Auvitek AU0828 USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include "media/tuner.h"
+#include <media/v4l2-common.h>
+
+static int i2c_scan;
+module_param(i2c_scan, int, 0444);
+MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
+
+#define I2C_WAIT_DELAY 25
+#define I2C_WAIT_RETRY 1000
+
+static inline int i2c_slave_did_write_ack(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, AU0828_I2C_STATUS_201) &
+		AU0828_I2C_STATUS_NO_WRITE_ACK ? 0 : 1;
+}
+
+static inline int i2c_slave_did_read_ack(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, AU0828_I2C_STATUS_201) &
+		AU0828_I2C_STATUS_NO_READ_ACK ? 0 : 1;
+}
+
+static int i2c_wait_read_ack(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (!i2c_slave_did_read_ack(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+static inline int i2c_is_read_busy(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, AU0828_I2C_STATUS_201) &
+		AU0828_I2C_STATUS_READ_DONE ? 0 : 1;
+}
+
+static int i2c_wait_read_done(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (!i2c_is_read_busy(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+static inline int i2c_is_write_done(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, AU0828_I2C_STATUS_201) &
+		AU0828_I2C_STATUS_WRITE_DONE ? 1 : 0;
+}
+
+static int i2c_wait_write_done(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (i2c_is_write_done(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+static inline int i2c_is_busy(struct i2c_adapter *i2c_adap)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	return au0828_read(dev, AU0828_I2C_STATUS_201) &
+		AU0828_I2C_STATUS_BUSY ? 1 : 0;
+}
+
+static int i2c_wait_done(struct i2c_adapter *i2c_adap)
+{
+	int count;
+
+	for (count = 0; count < I2C_WAIT_RETRY; count++) {
+		if (!i2c_is_busy(i2c_adap))
+			break;
+		udelay(I2C_WAIT_DELAY);
+	}
+
+	if (I2C_WAIT_RETRY == count)
+		return 0;
+
+	return 1;
+}
+
+/* FIXME: Implement join handling correctly */
+static int i2c_sendbytes(struct i2c_adapter *i2c_adap,
+	const struct i2c_msg *msg, int joined_rlen)
+{
+	int i, strobe = 0;
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	u8 i2c_speed = dev->board.i2c_clk_divider;
+
+	dprintk(4, "%s()\n", __func__);
+
+	au0828_write(dev, AU0828_I2C_MULTIBYTE_MODE_2FF, 0x01);
+
+	if (((dev->board.tuner_type == TUNER_XC5000) ||
+	     (dev->board.tuner_type == TUNER_XC5000C)) &&
+	    (dev->board.tuner_addr == msg->addr)) {
+		/*
+		 * Due to I2C clock stretch, we need to use a lower speed
+		 * on xc5000 for commands. However, firmware transfer can
+		 * speed up to 400 KHz.
+		 */
+		if (msg->len == 64)
+			i2c_speed = AU0828_I2C_CLK_250KHZ;
+		else
+			i2c_speed = AU0828_I2C_CLK_20KHZ;
+	}
+	/* Set the I2C clock */
+	au0828_write(dev, AU0828_I2C_CLK_DIVIDER_202, i2c_speed);
+
+	/* Hardware needs 8 bit addresses */
+	au0828_write(dev, AU0828_I2C_DEST_ADDR_203, msg->addr << 1);
+
+	dprintk(4, "SEND: %02x\n", msg->addr);
+
+	/* Deal with i2c_scan */
+	if (msg->len == 0) {
+		/* The analog tuner detection code makes use of the SMBUS_QUICK
+		   message (which involves a zero length i2c write).  To avoid
+		   checking the status register when we didn't strobe out any
+		   actual bytes to the bus, just do a read check.  This is
+		   consistent with how I saw i2c device checking done in the
+		   USB trace of the Windows driver */
+		au0828_write(dev, AU0828_I2C_TRIGGER_200,
+			     AU0828_I2C_TRIGGER_READ);
+
+		if (!i2c_wait_done(i2c_adap))
+			return -EIO;
+
+		if (i2c_wait_read_ack(i2c_adap))
+			return -EIO;
+
+		return 0;
+	}
+
+	for (i = 0; i < msg->len;) {
+
+		dprintk(4, " %02x\n", msg->buf[i]);
+
+		au0828_write(dev, AU0828_I2C_WRITE_FIFO_205, msg->buf[i]);
+
+		strobe++;
+		i++;
+
+		if ((strobe >= 4) || (i >= msg->len)) {
+
+			/* Strobe the byte into the bus */
+			if (i < msg->len)
+				au0828_write(dev, AU0828_I2C_TRIGGER_200,
+					     AU0828_I2C_TRIGGER_WRITE |
+					     AU0828_I2C_TRIGGER_HOLD);
+			else
+				au0828_write(dev, AU0828_I2C_TRIGGER_200,
+					     AU0828_I2C_TRIGGER_WRITE);
+
+			/* Reset strobe trigger */
+			strobe = 0;
+
+			if (!i2c_wait_write_done(i2c_adap))
+				return -EIO;
+
+		}
+
+	}
+	if (!i2c_wait_done(i2c_adap))
+		return -EIO;
+
+	dprintk(4, "\n");
+
+	return msg->len;
+}
+
+/* FIXME: Implement join handling correctly */
+static int i2c_readbytes(struct i2c_adapter *i2c_adap,
+	const struct i2c_msg *msg, int joined)
+{
+	struct au0828_dev *dev = i2c_adap->algo_data;
+	u8 i2c_speed = dev->board.i2c_clk_divider;
+	int i;
+
+	dprintk(4, "%s()\n", __func__);
+
+	au0828_write(dev, AU0828_I2C_MULTIBYTE_MODE_2FF, 0x01);
+
+	/*
+	 * Due to xc5000c clock stretch, we cannot use full speed at
+	 * readings from xc5000, as otherwise they'll fail.
+	 */
+	if (((dev->board.tuner_type == TUNER_XC5000) ||
+	     (dev->board.tuner_type == TUNER_XC5000C)) &&
+	    (dev->board.tuner_addr == msg->addr))
+		i2c_speed = AU0828_I2C_CLK_20KHZ;
+
+	/* Set the I2C clock */
+	au0828_write(dev, AU0828_I2C_CLK_DIVIDER_202, i2c_speed);
+
+	/* Hardware needs 8 bit addresses */
+	au0828_write(dev, AU0828_I2C_DEST_ADDR_203, msg->addr << 1);
+
+	dprintk(4, " RECV:\n");
+
+	/* Deal with i2c_scan */
+	if (msg->len == 0) {
+		au0828_write(dev, AU0828_I2C_TRIGGER_200,
+			     AU0828_I2C_TRIGGER_READ);
+
+		if (i2c_wait_read_ack(i2c_adap))
+			return -EIO;
+		return 0;
+	}
+
+	for (i = 0; i < msg->len;) {
+
+		i++;
+
+		if (i < msg->len)
+			au0828_write(dev, AU0828_I2C_TRIGGER_200,
+				     AU0828_I2C_TRIGGER_READ |
+				     AU0828_I2C_TRIGGER_HOLD);
+		else
+			au0828_write(dev, AU0828_I2C_TRIGGER_200,
+				     AU0828_I2C_TRIGGER_READ);
+
+		if (!i2c_wait_read_done(i2c_adap))
+			return -EIO;
+
+		msg->buf[i-1] = au0828_read(dev, AU0828_I2C_READ_FIFO_209) &
+			0xff;
+
+		dprintk(4, " %02x\n", msg->buf[i-1]);
+	}
+	if (!i2c_wait_done(i2c_adap))
+		return -EIO;
+
+	dprintk(4, "\n");
+
+	return msg->len;
+}
+
+static int i2c_xfer(struct i2c_adapter *i2c_adap,
+		    struct i2c_msg *msgs, int num)
+{
+	int i, retval = 0;
+
+	dprintk(4, "%s(num = %d)\n", __func__, num);
+
+	for (i = 0; i < num; i++) {
+		dprintk(4, "%s(num = %d) addr = 0x%02x  len = 0x%x\n",
+			__func__, num, msgs[i].addr, msgs[i].len);
+		if (msgs[i].flags & I2C_M_RD) {
+			/* read */
+			retval = i2c_readbytes(i2c_adap, &msgs[i], 0);
+		} else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&
+			   msgs[i].addr == msgs[i + 1].addr) {
+			/* write then read from same address */
+			retval = i2c_sendbytes(i2c_adap, &msgs[i],
+					       msgs[i + 1].len);
+			if (retval < 0)
+				goto err;
+			i++;
+			retval = i2c_readbytes(i2c_adap, &msgs[i], 1);
+		} else {
+			/* write */
+			retval = i2c_sendbytes(i2c_adap, &msgs[i], 0);
+		}
+		if (retval < 0)
+			goto err;
+	}
+	return num;
+
+err:
+	return retval;
+}
+
+static u32 au0828_functionality(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm au0828_i2c_algo_template = {
+	.master_xfer	= i2c_xfer,
+	.functionality	= au0828_functionality,
+};
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_adapter au0828_i2c_adap_template = {
+	.name              = KBUILD_MODNAME,
+	.owner             = THIS_MODULE,
+	.algo              = &au0828_i2c_algo_template,
+};
+
+static struct i2c_client au0828_i2c_client_template = {
+	.name	= "au0828 internal",
+};
+
+static char *i2c_devs[128] = {
+	[0x8e >> 1] = "au8522",
+	[0xa0 >> 1] = "eeprom",
+	[0xc2 >> 1] = "tuner/xc5000",
+};
+
+static void do_i2c_scan(char *name, struct i2c_client *c)
+{
+	unsigned char buf;
+	int i, rc;
+
+	for (i = 0; i < 128; i++) {
+		c->addr = i;
+		rc = i2c_master_recv(c, &buf, 0);
+		if (rc < 0)
+			continue;
+		pr_info("%s: i2c scan: found device @ 0x%x  [%s]\n",
+		       name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
+	}
+}
+
+/* init + register i2c adapter */
+int au0828_i2c_register(struct au0828_dev *dev)
+{
+	dprintk(1, "%s()\n", __func__);
+
+	dev->i2c_adap = au0828_i2c_adap_template;
+	dev->i2c_algo = au0828_i2c_algo_template;
+	dev->i2c_client = au0828_i2c_client_template;
+
+	dev->i2c_adap.dev.parent = &dev->usbdev->dev;
+
+	strlcpy(dev->i2c_adap.name, KBUILD_MODNAME,
+		sizeof(dev->i2c_adap.name));
+
+	dev->i2c_adap.algo = &dev->i2c_algo;
+	dev->i2c_adap.algo_data = dev;
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+	i2c_set_adapdata(&dev->i2c_adap, &dev->v4l2_dev);
+#else
+	i2c_set_adapdata(&dev->i2c_adap, dev);
+#endif
+	i2c_add_adapter(&dev->i2c_adap);
+
+	dev->i2c_client.adapter = &dev->i2c_adap;
+
+	if (0 == dev->i2c_rc) {
+		pr_info("i2c bus registered\n");
+		if (i2c_scan)
+			do_i2c_scan(KBUILD_MODNAME, &dev->i2c_client);
+	} else
+		pr_info("i2c bus register FAILED\n");
+
+	return dev->i2c_rc;
+}
+
+int au0828_i2c_unregister(struct au0828_dev *dev)
+{
+	i2c_del_adapter(&dev->i2c_adap);
+	return 0;
+}
+

drivers/media/usb/au0828/au0828-input.c

@@ -0,0 +1,406 @@
+/*
+  handle au0828 IR remotes via linux kernel input layer.
+
+   Copyright (C) 2014 Mauro Carvalho Chehab <mchehab@samsung.com>
+   Copyright (c) 2014 Samsung Electronics Co., Ltd.
+
+  Based on em28xx-input.c.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+ */
+
+#include "au0828.h"
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <linux/slab.h>
+#include <media/rc-core.h>
+
+static int disable_ir;
+module_param(disable_ir,        int, 0444);
+MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
+
+struct au0828_rc {
+	struct au0828_dev *dev;
+	struct rc_dev *rc;
+	char name[32];
+	char phys[32];
+
+	/* poll decoder */
+	int polling;
+	struct delayed_work work;
+
+	/* i2c slave address of external device (if used) */
+	u16 i2c_dev_addr;
+
+	int  (*get_key_i2c)(struct au0828_rc *ir);
+};
+
+/*
+ * AU8522 has a builtin IR receiver. Add functions to get IR from it
+ */
+
+static int au8522_rc_write(struct au0828_rc *ir, u16 reg, u8 data)
+{
+	int rc;
+	char buf[] = { (reg >> 8) | 0x80, reg & 0xff, data };
+	struct i2c_msg msg = { .addr = ir->i2c_dev_addr, .flags = 0,
+			       .buf = buf, .len = sizeof(buf) };
+
+	rc = i2c_transfer(ir->dev->i2c_client.adapter, &msg, 1);
+
+	if (rc < 0)
+		return rc;
+
+	return (rc == 1) ? 0 : -EIO;
+}
+
+static int au8522_rc_read(struct au0828_rc *ir, u16 reg, int val,
+				 char *buf, int size)
+{
+	int rc;
+	char obuf[3];
+	struct i2c_msg msg[2] = { { .addr = ir->i2c_dev_addr, .flags = 0,
+				    .buf = obuf, .len = 2 },
+				  { .addr = ir->i2c_dev_addr, .flags = I2C_M_RD,
+				    .buf = buf, .len = size } };
+
+	obuf[0] = 0x40 | reg >> 8;
+	obuf[1] = reg & 0xff;
+	if (val >= 0) {
+		obuf[2] = val;
+		msg[0].len++;
+	}
+
+	rc = i2c_transfer(ir->dev->i2c_client.adapter, msg, 2);
+
+	if (rc < 0)
+		return rc;
+
+	return (rc == 2) ? 0 : -EIO;
+}
+
+static int au8522_rc_andor(struct au0828_rc *ir, u16 reg, u8 mask, u8 value)
+{
+	int rc;
+	char buf, oldbuf;
+
+	rc = au8522_rc_read(ir, reg, -1, &buf, 1);
+	if (rc < 0)
+		return rc;
+
+	oldbuf = buf;
+	buf = (buf & ~mask) | (value & mask);
+
+	/* Nothing to do, just return */
+	if (buf == oldbuf)
+		return 0;
+
+	return au8522_rc_write(ir, reg, buf);
+}
+
+#define au8522_rc_set(ir, reg, bit) au8522_rc_andor(ir, (reg), (bit), (bit))
+#define au8522_rc_clear(ir, reg, bit) au8522_rc_andor(ir, (reg), (bit), 0)
+
+/* Remote Controller time units */
+
+#define AU8522_UNIT		200000 /* ns */
+#define NEC_START_SPACE		(4500000 / AU8522_UNIT)
+#define NEC_START_PULSE		(562500 * 16)
+#define RC5_START_SPACE		(4 * AU8522_UNIT)
+#define RC5_START_PULSE		888888
+
+static int au0828_get_key_au8522(struct au0828_rc *ir)
+{
+	unsigned char buf[40];
+	DEFINE_IR_RAW_EVENT(rawir);
+	int i, j, rc;
+	int prv_bit, bit, width;
+	bool first = true;
+
+	/* Check IR int */
+	rc = au8522_rc_read(ir, 0xe1, -1, buf, 1);
+	if (rc < 0 || !(buf[0] & (1 << 4))) {
+		/* Be sure that IR is enabled */
+		au8522_rc_set(ir, 0xe0, 1 << 4);
+		return 0;
+	}
+
+	/* Something arrived. Get the data */
+	rc = au8522_rc_read(ir, 0xe3, 0x11, buf, sizeof(buf));
+
+
+	if (rc < 0)
+		return rc;
+
+	/* Disable IR */
+	au8522_rc_clear(ir, 0xe0, 1 << 4);
+
+	/* Enable IR */
+	au8522_rc_set(ir, 0xe0, 1 << 4);
+
+	dprintk(16, "RC data received: %*ph\n", 40, buf);
+
+	prv_bit = (buf[0] >> 7) & 0x01;
+	width = 0;
+	for (i = 0; i < sizeof(buf); i++) {
+		for (j = 7; j >= 0; j--) {
+			bit = (buf[i] >> j) & 0x01;
+			if (bit == prv_bit) {
+				width++;
+				continue;
+			}
+
+			/*
+			 * Fix an au8522 bug: the first pulse event
+			 * is lost. So, we need to fake it, based on the
+			 * protocol. That means that not all raw decoders
+			 * will work, as we need to add a hack for each
+			 * protocol, based on the first space.
+			 * So, we only support RC5 and NEC.
+			 */
+
+			if (first) {
+				first = false;
+
+				init_ir_raw_event(&rawir);
+				rawir.pulse = true;
+				if (width > NEC_START_SPACE - 2 &&
+				    width < NEC_START_SPACE + 2) {
+					/* NEC protocol */
+					rawir.duration = NEC_START_PULSE;
+					dprintk(16, "Storing NEC start %s with duration %d",
+						rawir.pulse ? "pulse" : "space",
+						rawir.duration);
+				} else {
+					/* RC5 protocol */
+					rawir.duration = RC5_START_PULSE;
+					dprintk(16, "Storing RC5 start %s with duration %d",
+						rawir.pulse ? "pulse" : "space",
+						rawir.duration);
+				}
+				ir_raw_event_store(ir->rc, &rawir);
+			}
+
+			init_ir_raw_event(&rawir);
+			rawir.pulse = prv_bit ? false : true;
+			rawir.duration = AU8522_UNIT * width;
+			dprintk(16, "Storing %s with duration %d",
+				rawir.pulse ? "pulse" : "space",
+				rawir.duration);
+			ir_raw_event_store(ir->rc, &rawir);
+
+			width = 1;
+			prv_bit = bit;
+		}
+	}
+
+	init_ir_raw_event(&rawir);
+	rawir.pulse = prv_bit ? false : true;
+	rawir.duration = AU8522_UNIT * width;
+	dprintk(16, "Storing end %s with duration %d",
+		rawir.pulse ? "pulse" : "space",
+		rawir.duration);
+	ir_raw_event_store(ir->rc, &rawir);
+
+	ir_raw_event_handle(ir->rc);
+
+	return 1;
+}
+
+/*
+ * Generic IR code
+ */
+
+static void au0828_rc_work(struct work_struct *work)
+{
+	struct au0828_rc *ir = container_of(work, struct au0828_rc, work.work);
+	int rc;
+
+	rc = ir->get_key_i2c(ir);
+	if (rc < 0)
+		pr_info("Error while getting RC scancode\n");
+
+	schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
+}
+
+static int au0828_rc_start(struct rc_dev *rc)
+{
+	struct au0828_rc *ir = rc->priv;
+
+	INIT_DELAYED_WORK(&ir->work, au0828_rc_work);
+
+	/* Enable IR */
+	au8522_rc_set(ir, 0xe0, 1 << 4);
+
+	schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
+
+	return 0;
+}
+
+static void au0828_rc_stop(struct rc_dev *rc)
+{
+	struct au0828_rc *ir = rc->priv;
+
+	cancel_delayed_work_sync(&ir->work);
+
+	/* Disable IR */
+	au8522_rc_clear(ir, 0xe0, 1 << 4);
+}
+
+static int au0828_probe_i2c_ir(struct au0828_dev *dev)
+{
+	int i = 0;
+	const unsigned short addr_list[] = {
+		 0x47, I2C_CLIENT_END
+	};
+
+	while (addr_list[i] != I2C_CLIENT_END) {
+		if (i2c_probe_func_quick_read(dev->i2c_client.adapter,
+					      addr_list[i]) == 1)
+			return addr_list[i];
+		i++;
+	}
+
+	return -ENODEV;
+}
+
+int au0828_rc_register(struct au0828_dev *dev)
+{
+	struct au0828_rc *ir;
+	struct rc_dev *rc;
+	int err = -ENOMEM;
+	u16 i2c_rc_dev_addr = 0;
+
+	if (!dev->board.has_ir_i2c || disable_ir)
+		return 0;
+
+	i2c_rc_dev_addr = au0828_probe_i2c_ir(dev);
+	if (!i2c_rc_dev_addr)
+		return -ENODEV;
+
+	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
+	rc = rc_allocate_device();
+	if (!ir || !rc)
+		goto error;
+
+	/* record handles to ourself */
+	ir->dev = dev;
+	dev->ir = ir;
+	ir->rc = rc;
+
+	rc->priv = ir;
+	rc->open = au0828_rc_start;
+	rc->close = au0828_rc_stop;
+
+	if (dev->board.has_ir_i2c) {	/* external i2c device */
+		switch (dev->boardnr) {
+		case AU0828_BOARD_HAUPPAUGE_HVR950Q:
+			rc->map_name = RC_MAP_HAUPPAUGE;
+			ir->get_key_i2c = au0828_get_key_au8522;
+			break;
+		default:
+			err = -ENODEV;
+			goto error;
+		}
+
+		ir->i2c_dev_addr = i2c_rc_dev_addr;
+	}
+
+	/* This is how often we ask the chip for IR information */
+	ir->polling = 100; /* ms */
+
+	/* init input device */
+	snprintf(ir->name, sizeof(ir->name), "au0828 IR (%s)",
+		 dev->board.name);
+
+	usb_make_path(dev->usbdev, ir->phys, sizeof(ir->phys));
+	strlcat(ir->phys, "/input0", sizeof(ir->phys));
+
+	rc->input_name = ir->name;
+	rc->input_phys = ir->phys;
+	rc->input_id.bustype = BUS_USB;
+	rc->input_id.version = 1;
+	rc->input_id.vendor = le16_to_cpu(dev->usbdev->descriptor.idVendor);
+	rc->input_id.product = le16_to_cpu(dev->usbdev->descriptor.idProduct);
+	rc->dev.parent = &dev->usbdev->dev;
+	rc->driver_name = "au0828-input";
+	rc->driver_type = RC_DRIVER_IR_RAW;
+	rc->allowed_protocols = RC_BIT_NEC | RC_BIT_RC5;
+
+	/* all done */
+	err = rc_register_device(rc);
+	if (err)
+		goto error;
+
+	pr_info("Remote controller %s initalized\n", ir->name);
+
+	return 0;
+
+error:
+	dev->ir = NULL;
+	rc_free_device(rc);
+	kfree(ir);
+	return err;
+}
+
+void au0828_rc_unregister(struct au0828_dev *dev)
+{
+	struct au0828_rc *ir = dev->ir;
+
+	/* skip detach on non attached boards */
+	if (!ir)
+		return;
+
+	if (ir->rc)
+		rc_unregister_device(ir->rc);
+
+	/* done */
+	kfree(ir);
+	dev->ir = NULL;
+}
+
+int au0828_rc_suspend(struct au0828_dev *dev)
+{
+	struct au0828_rc *ir = dev->ir;
+
+	if (!ir)
+		return 0;
+
+	pr_info("Stopping RC\n");
+
+	cancel_delayed_work_sync(&ir->work);
+
+	/* Disable IR */
+	au8522_rc_clear(ir, 0xe0, 1 << 4);
+
+	return 0;
+}
+
+int au0828_rc_resume(struct au0828_dev *dev)
+{
+	struct au0828_rc *ir = dev->ir;
+
+	if (!ir)
+		return 0;
+
+	pr_info("Restarting RC\n");
+
+	/* Enable IR */
+	au8522_rc_set(ir, 0xe0, 1 << 4);
+
+	schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling));
+
+	return 0;
+}

drivers/media/usb/au0828/au0828-reg.h

@@ -0,0 +1,66 @@
+/*
+ *  Driver for the Auvitek USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* We'll start to rename these registers once we have a better
+ * understanding of their meaning.
+ */
+#define REG_000 0x000
+#define REG_001 0x001
+#define REG_002 0x002
+#define REG_003 0x003
+
+#define AU0828_SENSORCTRL_100 0x100
+#define AU0828_SENSORCTRL_VBI_103 0x103
+
+/* I2C registers */
+#define AU0828_I2C_TRIGGER_200		0x200
+#define AU0828_I2C_STATUS_201		0x201
+#define AU0828_I2C_CLK_DIVIDER_202	0x202
+#define AU0828_I2C_DEST_ADDR_203	0x203
+#define AU0828_I2C_WRITE_FIFO_205	0x205
+#define AU0828_I2C_READ_FIFO_209	0x209
+#define AU0828_I2C_MULTIBYTE_MODE_2FF	0x2ff
+
+/* Audio registers */
+#define AU0828_AUDIOCTRL_50C 0x50C
+
+#define REG_600 0x600
+
+/*********************************************************************/
+/* Here are constants for values associated with the above registers */
+
+/* I2C Trigger (Reg 0x200) */
+#define AU0828_I2C_TRIGGER_WRITE	0x01
+#define AU0828_I2C_TRIGGER_READ		0x20
+#define AU0828_I2C_TRIGGER_HOLD		0x40
+
+/* I2C Status (Reg 0x201) */
+#define AU0828_I2C_STATUS_READ_DONE	0x01
+#define AU0828_I2C_STATUS_NO_READ_ACK	0x02
+#define AU0828_I2C_STATUS_WRITE_DONE	0x04
+#define AU0828_I2C_STATUS_NO_WRITE_ACK	0x08
+#define AU0828_I2C_STATUS_BUSY		0x10
+
+/* I2C Clock Divider (Reg 0x202) */
+#define AU0828_I2C_CLK_250KHZ 0x07
+#define AU0828_I2C_CLK_100KHZ 0x14
+#define AU0828_I2C_CLK_30KHZ  0x40
+#define AU0828_I2C_CLK_20KHZ  0x60

drivers/media/usb/au0828/au0828-vbi.c

@@ -0,0 +1,138 @@
+/*
+   au0828-vbi.c - VBI driver for au0828
+
+   Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
+
+   This work was sponsored by GetWellNetwork Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.
+ */
+
+#include "au0828.h"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+
+static unsigned int vbibufs = 5;
+module_param(vbibufs, int, 0644);
+MODULE_PARM_DESC(vbibufs, "number of vbi buffers, range 2-32");
+
+/* ------------------------------------------------------------------ */
+
+static void
+free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf)
+{
+	struct au0828_fh     *fh  = vq->priv_data;
+	struct au0828_dev    *dev = fh->dev;
+	unsigned long flags = 0;
+	if (in_interrupt())
+		BUG();
+
+	/* We used to wait for the buffer to finish here, but this didn't work
+	   because, as we were keeping the state as VIDEOBUF_QUEUED,
+	   videobuf_queue_cancel marked it as finished for us.
+	   (Also, it could wedge forever if the hardware was misconfigured.)
+
+	   This should be safe; by the time we get here, the buffer isn't
+	   queued anymore. If we ever start marking the buffers as
+	   VIDEOBUF_ACTIVE, it won't be, though.
+	*/
+	spin_lock_irqsave(&dev->slock, flags);
+	if (dev->isoc_ctl.vbi_buf == buf)
+		dev->isoc_ctl.vbi_buf = NULL;
+	spin_unlock_irqrestore(&dev->slock, flags);
+
+	videobuf_vmalloc_free(&buf->vb);
+	buf->vb.state = VIDEOBUF_NEEDS_INIT;
+}
+
+static int
+vbi_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+{
+	struct au0828_fh     *fh  = q->priv_data;
+	struct au0828_dev    *dev = fh->dev;
+
+	*size = dev->vbi_width * dev->vbi_height * 2;
+
+	if (0 == *count)
+		*count = vbibufs;
+	if (*count < 2)
+		*count = 2;
+	if (*count > 32)
+		*count = 32;
+	return 0;
+}
+
+static int
+vbi_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+	    enum v4l2_field field)
+{
+	struct au0828_fh     *fh  = q->priv_data;
+	struct au0828_dev    *dev = fh->dev;
+	struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
+	int                  rc = 0;
+
+	buf->vb.size = dev->vbi_width * dev->vbi_height * 2;
+
+	if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
+		return -EINVAL;
+
+	buf->vb.width  = dev->vbi_width;
+	buf->vb.height = dev->vbi_height;
+	buf->vb.field  = field;
+
+	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+		rc = videobuf_iolock(q, &buf->vb, NULL);
+		if (rc < 0)
+			goto fail;
+	}
+
+	buf->vb.state = VIDEOBUF_PREPARED;
+	return 0;
+
+fail:
+	free_buffer(q, buf);
+	return rc;
+}
+
+static void
+vbi_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+{
+	struct au0828_buffer    *buf     = container_of(vb,
+							struct au0828_buffer,
+							vb);
+	struct au0828_fh        *fh      = vq->priv_data;
+	struct au0828_dev       *dev     = fh->dev;
+	struct au0828_dmaqueue  *vbiq    = &dev->vbiq;
+
+	buf->vb.state = VIDEOBUF_QUEUED;
+	list_add_tail(&buf->vb.queue, &vbiq->active);
+}
+
+static void vbi_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+	struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
+	free_buffer(q, buf);
+}
+
+struct videobuf_queue_ops au0828_vbi_qops = {
+	.buf_setup    = vbi_setup,
+	.buf_prepare  = vbi_prepare,
+	.buf_queue    = vbi_queue,
+	.buf_release  = vbi_release,
+};

drivers/media/usb/au0828/au0828.h

@@ -0,0 +1,350 @@
+/*
+ *  Driver for the Auvitek AU0828 USB bridge
+ *
+ *  Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <media/tveeprom.h>
+
+/* Analog */
+#include <linux/videodev2.h>
+#include <media/videobuf-vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fh.h>
+
+/* DVB */
+#include "demux.h"
+#include "dmxdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+#include "dvb_net.h"
+#include "dvbdev.h"
+
+#include "au0828-reg.h"
+#include "au0828-cards.h"
+
+#define URB_COUNT   16
+#define URB_BUFSIZE (0xe522)
+
+/* Analog constants */
+#define NTSC_STD_W      720
+#define NTSC_STD_H      480
+
+#define AU0828_INTERLACED_DEFAULT       1
+#define V4L2_CID_PRIVATE_SHARPNESS  (V4L2_CID_PRIVATE_BASE + 0)
+
+/* Defination for AU0828 USB transfer */
+#define AU0828_MAX_ISO_BUFS    12  /* maybe resize this value in the future */
+#define AU0828_ISO_PACKETS_PER_URB      128
+
+#define AU0828_MIN_BUF 4
+#define AU0828_DEF_BUF 8
+
+#define AU0828_MAX_INPUT        4
+
+/* au0828 resource types (used for res_get/res_lock etc */
+#define AU0828_RESOURCE_VIDEO 0x01
+#define AU0828_RESOURCE_VBI   0x02
+
+enum au0828_itype {
+	AU0828_VMUX_UNDEFINED = 0,
+	AU0828_VMUX_COMPOSITE,
+	AU0828_VMUX_SVIDEO,
+	AU0828_VMUX_CABLE,
+	AU0828_VMUX_TELEVISION,
+	AU0828_VMUX_DVB,
+	AU0828_VMUX_DEBUG
+};
+
+struct au0828_input {
+	enum au0828_itype type;
+	unsigned int vmux;
+	unsigned int amux;
+	void (*audio_setup) (void *priv, int enable);
+};
+
+struct au0828_board {
+	char *name;
+	unsigned int tuner_type;
+	unsigned char tuner_addr;
+	unsigned char i2c_clk_divider;
+	unsigned char has_ir_i2c:1;
+	unsigned char has_analog:1;
+	struct au0828_input input[AU0828_MAX_INPUT];
+
+};
+
+struct au0828_dvb {
+	struct mutex lock;
+	struct dvb_adapter adapter;
+	struct dvb_frontend *frontend;
+	struct dvb_demux demux;
+	struct dmxdev dmxdev;
+	struct dmx_frontend fe_hw;
+	struct dmx_frontend fe_mem;
+	struct dvb_net net;
+	int feeding;
+	int start_count;
+	int stop_count;
+
+	int (*set_frontend)(struct dvb_frontend *fe);
+};
+
+enum au0828_stream_state {
+	STREAM_OFF,
+	STREAM_INTERRUPT,
+	STREAM_ON
+};
+
+#define AUVI_INPUT(nr) (dev->board.input[nr])
+
+/* device state */
+enum au0828_dev_state {
+	DEV_INITIALIZED = 0x01,
+	DEV_DISCONNECTED = 0x02,
+	DEV_MISCONFIGURED = 0x04
+};
+
+struct au0828_fh {
+	/* must be the first field of this struct! */
+	struct v4l2_fh fh;
+
+	struct au0828_dev *dev;
+	unsigned int  resources;
+
+	struct videobuf_queue        vb_vidq;
+	struct videobuf_queue        vb_vbiq;
+	enum v4l2_buf_type           type;
+};
+
+struct au0828_usb_isoc_ctl {
+		/* max packet size of isoc transaction */
+	int				max_pkt_size;
+
+		/* number of allocated urbs */
+	int				num_bufs;
+
+		/* urb for isoc transfers */
+	struct urb			**urb;
+
+		/* transfer buffers for isoc transfer */
+	char				**transfer_buffer;
+
+		/* Last buffer command and region */
+	u8				cmd;
+	int				pos, size, pktsize;
+
+		/* Last field: ODD or EVEN? */
+	int				field;
+
+		/* Stores incomplete commands */
+	u32				tmp_buf;
+	int				tmp_buf_len;
+
+		/* Stores already requested buffers */
+	struct au0828_buffer		*buf;
+	struct au0828_buffer		*vbi_buf;
+
+		/* Stores the number of received fields */
+	int				nfields;
+
+		/* isoc urb callback */
+	int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
+
+};
+
+/* buffer for one video frame */
+struct au0828_buffer {
+	/* common v4l buffer stuff -- must be first */
+	struct videobuf_buffer vb;
+
+	struct list_head frame;
+	int top_field;
+	int receiving;
+};
+
+struct au0828_dmaqueue {
+	struct list_head       active;
+	struct list_head       queued;
+
+	wait_queue_head_t          wq;
+
+	/* Counters to control buffer fill */
+	int                        pos;
+};
+
+struct au0828_dev {
+	struct mutex mutex;
+	struct usb_device	*usbdev;
+	int			boardnr;
+	struct au0828_board	board;
+	u8			ctrlmsg[64];
+
+	/* I2C */
+	struct i2c_adapter		i2c_adap;
+	struct i2c_algorithm		i2c_algo;
+	struct i2c_client		i2c_client;
+	u32 				i2c_rc;
+
+	/* Digital */
+	struct au0828_dvb		dvb;
+	struct work_struct              restart_streaming;
+
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+	/* Analog */
+	struct v4l2_device v4l2_dev;
+	struct v4l2_ctrl_handler v4l2_ctrl_hdl;
+#endif
+#ifdef CONFIG_VIDEO_AU0828_RC
+	struct au0828_rc *ir;
+#endif
+
+	int users;
+	unsigned int resources;	/* resources in use */
+	struct video_device *vdev;
+	struct video_device *vbi_dev;
+	struct timer_list vid_timeout;
+	int vid_timeout_running;
+	struct timer_list vbi_timeout;
+	int vbi_timeout_running;
+	int width;
+	int height;
+	int vbi_width;
+	int vbi_height;
+	u32 vbi_read;
+	v4l2_std_id std;
+	u32 field_size;
+	u32 frame_size;
+	u32 bytesperline;
+	int type;
+	u8 ctrl_ainput;
+	__u8 isoc_in_endpointaddr;
+	u8 isoc_init_ok;
+	int greenscreen_detected;
+	unsigned int frame_count;
+	int ctrl_freq;
+	int input_type;
+	int std_set_in_tuner_core;
+	unsigned int ctrl_input;
+	enum au0828_dev_state dev_state;
+	enum au0828_stream_state stream_state;
+	wait_queue_head_t open;
+
+	struct mutex lock;
+
+	/* Isoc control struct */
+	struct au0828_dmaqueue vidq;
+	struct au0828_dmaqueue vbiq;
+	struct au0828_usb_isoc_ctl isoc_ctl;
+	spinlock_t slock;
+
+	/* usb transfer */
+	int alt;		/* alternate */
+	int max_pkt_size;	/* max packet size of isoc transaction */
+	int num_alt;		/* Number of alternative settings */
+	unsigned int *alt_max_pkt_size;	/* array of wMaxPacketSize */
+	struct urb *urb[AU0828_MAX_ISO_BUFS];	/* urb for isoc transfers */
+	char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
+						   transfer */
+
+	/* DVB USB / URB Related */
+	bool		urb_streaming, need_urb_start;
+	struct urb	*urbs[URB_COUNT];
+
+	/* Preallocated transfer digital transfer buffers */
+
+	char *dig_transfer_buffer[URB_COUNT];
+};
+
+/* ----------------------------------------------------------- */
+#define au0828_read(dev, reg) au0828_readreg(dev, reg)
+#define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
+#define au0828_andor(dev, reg, mask, value) 				\
+	 au0828_writereg(dev, reg, 					\
+	(au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
+
+#define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
+#define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
+
+/* ----------------------------------------------------------- */
+/* au0828-core.c */
+extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
+extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
+extern int au0828_debug;
+
+/* ----------------------------------------------------------- */
+/* au0828-cards.c */
+extern struct au0828_board au0828_boards[];
+extern struct usb_device_id au0828_usb_id_table[];
+extern void au0828_gpio_setup(struct au0828_dev *dev);
+extern int au0828_tuner_callback(void *priv, int component,
+				 int command, int arg);
+extern void au0828_card_setup(struct au0828_dev *dev);
+
+/* ----------------------------------------------------------- */
+/* au0828-i2c.c */
+extern int au0828_i2c_register(struct au0828_dev *dev);
+extern int au0828_i2c_unregister(struct au0828_dev *dev);
+
+/* ----------------------------------------------------------- */
+/* au0828-video.c */
+int au0828_analog_register(struct au0828_dev *dev,
+			   struct usb_interface *interface);
+int au0828_analog_stream_disable(struct au0828_dev *d);
+void au0828_analog_unregister(struct au0828_dev *dev);
+#ifdef CONFIG_VIDEO_AU0828_V4L2
+void au0828_v4l2_suspend(struct au0828_dev *dev);
+void au0828_v4l2_resume(struct au0828_dev *dev);
+#else
+static inline void au0828_v4l2_suspend(struct au0828_dev *dev) { };
+static inline void au0828_v4l2_resume(struct au0828_dev *dev) { };
+#endif
+
+/* ----------------------------------------------------------- */
+/* au0828-dvb.c */
+extern int au0828_dvb_register(struct au0828_dev *dev);
+extern void au0828_dvb_unregister(struct au0828_dev *dev);
+void au0828_dvb_suspend(struct au0828_dev *dev);
+void au0828_dvb_resume(struct au0828_dev *dev);
+
+/* au0828-vbi.c */
+extern struct videobuf_queue_ops au0828_vbi_qops;
+
+#define dprintk(level, fmt, arg...)\
+	do { if (au0828_debug & level)\
+		printk(KERN_DEBUG pr_fmt(fmt), ## arg);\
+	} while (0)
+
+/* au0828-input.c */
+#ifdef CONFIG_VIDEO_AU0828_RC
+extern int au0828_rc_register(struct au0828_dev *dev);
+extern void au0828_rc_unregister(struct au0828_dev *dev);
+extern int au0828_rc_suspend(struct au0828_dev *dev);
+extern int au0828_rc_resume(struct au0828_dev *dev);
+#else
+static inline int au0828_rc_register(struct au0828_dev *dev) { return 0; }
+static inline void au0828_rc_unregister(struct au0828_dev *dev) { }
+static inline int au0828_rc_suspend(struct au0828_dev *dev) { return 0; }
+static inline int au0828_rc_resume(struct au0828_dev *dev) { return 0; }
+#endif

drivers/media/usb/b2c2/Kconfig

@@ -0,0 +1,15 @@
+config DVB_B2C2_FLEXCOP_USB
+	tristate "Technisat/B2C2 Air/Sky/Cable2PC USB"
+	depends on DVB_CORE && I2C
+	help
+	  Support for the Air/Sky/Cable2PC USB1.1 box (DVB/ATSC) by Technisat/B2C2,
+
+	  Say Y if you own such a device and want to use it.
+
+config DVB_B2C2_FLEXCOP_USB_DEBUG
+	bool "Enable debug for the B2C2 FlexCop drivers"
+	depends on DVB_B2C2_FLEXCOP_USB
+	select DVB_B2C2_FLEXCOP_DEBUG
+	   help
+	Say Y if you want to enable the module option to control debug messages
+	of all B2C2 FlexCop drivers.

drivers/media/usb/b2c2/Makefile

@@ -0,0 +1,5 @@
+b2c2-flexcop-usb-objs := flexcop-usb.o
+obj-$(CONFIG_DVB_B2C2_FLEXCOP_USB) += b2c2-flexcop-usb.o
+
+ccflags-y += -Idrivers/media/dvb-core/
+ccflags-y += -Idrivers/media/common/b2c2/

drivers/media/usb/b2c2/flexcop-usb.c

@@ -0,0 +1,587 @@
+/*
+ * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
+ * flexcop-usb.c - covers the USB part
+ * see flexcop.c for copyright information
+ */
+#define FC_LOG_PREFIX "flexcop_usb"
+#include "flexcop-usb.h"
+#include "flexcop-common.h"
+
+/* Version information */
+#define DRIVER_VERSION "0.1"
+#define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV USB Driver"
+#define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de>"
+
+/* debug */
+#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
+#define dprintk(level,args...) \
+	do { if ((debug & level)) printk(args); } while (0)
+
+#define debug_dump(b, l, method) do {\
+	int i; \
+	for (i = 0; i < l; i++) \
+		method("%02x ", b[i]); \
+	method("\n"); \
+} while (0)
+
+#define DEBSTATUS ""
+#else
+#define dprintk(level, args...)
+#define debug_dump(b, l, method)
+#define DEBSTATUS " (debugging is not enabled)"
+#endif
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,ts=2,"
+		"ctrl=4,i2c=8,v8mem=16 (or-able))." DEBSTATUS);
+#undef DEBSTATUS
+
+#define deb_info(args...) dprintk(0x01, args)
+#define deb_ts(args...) dprintk(0x02, args)
+#define deb_ctrl(args...) dprintk(0x04, args)
+#define deb_i2c(args...) dprintk(0x08, args)
+#define deb_v8(args...) dprintk(0x10, args)
+
+/* JLP 111700: we will include the 1 bit gap between the upper and lower 3 bits
+ * in the IBI address, to make the V8 code simpler.
+ * PCI ADDRESS FORMAT: 0x71C -> 0000 0111 0001 1100 (the six bits used)
+ *                  in general: 0000 0HHH 000L LL00
+ * IBI ADDRESS FORMAT:                    RHHH BLLL
+ *
+ * where R is the read(1)/write(0) bit, B is the busy bit
+ * and HHH and LLL are the two sets of three bits from the PCI address.
+ */
+#define B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(usPCI) (u8) \
+	(((usPCI >> 2) & 0x07) + ((usPCI >> 4) & 0x70))
+#define B2C2_FLEX_INTERNALADDR_TO_PCIOFFSET(ucAddr) (u16) \
+	(((ucAddr & 0x07) << 2) + ((ucAddr & 0x70) << 4))
+
+/*
+ * DKT 020228
+ * - forget about this VENDOR_BUFFER_SIZE, read and write register
+ *   deal with DWORD or 4 bytes, that should be should from now on
+ * - from now on, we don't support anything older than firm 1.00
+ *   I eliminated the write register as a 2 trip of writing hi word and lo word
+ *   and force this to write only 4 bytes at a time.
+ *   NOTE: this should work with all the firmware from 1.00 and newer
+ */
+static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI, u32 *val, u8 read)
+{
+	struct flexcop_usb *fc_usb = fc->bus_specific;
+	u8 request = read ? B2C2_USB_READ_REG : B2C2_USB_WRITE_REG;
+	u8 request_type = (read ? USB_DIR_IN : USB_DIR_OUT) | USB_TYPE_VENDOR;
+	u8 wAddress = B2C2_FLEX_PCIOFFSET_TO_INTERNALADDR(wRegOffsPCI) |
+		(read ? 0x80 : 0);
+
+	int len = usb_control_msg(fc_usb->udev,
+			read ? B2C2_USB_CTRL_PIPE_IN : B2C2_USB_CTRL_PIPE_OUT,
+			request,
+			request_type, /* 0xc0 read or 0x40 write */
+			wAddress,
+			0,
+			val,
+			sizeof(u32),
+			B2C2_WAIT_FOR_OPERATION_RDW * HZ);
+
+	if (len != sizeof(u32)) {
+		err("error while %s dword from %d (%d).", read ? "reading" :
+				"writing", wAddress, wRegOffsPCI);
+		return -EIO;
+	}
+	return 0;
+}
+/*
+ * DKT 010817 - add support for V8 memory read/write and flash update
+ */
+static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
+		flexcop_usb_request_t req, u8 page, u16 wAddress,
+		u8 *pbBuffer, u32 buflen)
+{
+	u8 request_type = USB_TYPE_VENDOR;
+	u16 wIndex;
+	int nWaitTime, pipe, len;
+	wIndex = page << 8;
+
+	switch (req) {
+	case B2C2_USB_READ_V8_MEM:
+		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8READ;
+		request_type |= USB_DIR_IN;
+		pipe = B2C2_USB_CTRL_PIPE_IN;
+		break;
+	case B2C2_USB_WRITE_V8_MEM:
+		wIndex |= pbBuffer[0];
+		request_type |= USB_DIR_OUT;
+		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8WRITE;
+		pipe = B2C2_USB_CTRL_PIPE_OUT;
+		break;
+	case B2C2_USB_FLASH_BLOCK:
+		request_type |= USB_DIR_OUT;
+		nWaitTime = B2C2_WAIT_FOR_OPERATION_V8FLASH;
+		pipe = B2C2_USB_CTRL_PIPE_OUT;
+		break;
+	default:
+		deb_info("unsupported request for v8_mem_req %x.\n", req);
+		return -EINVAL;
+	}
+	deb_v8("v8mem: %02x %02x %04x %04x, len: %d\n", request_type, req,
+			wAddress, wIndex, buflen);
+
+	len = usb_control_msg(fc_usb->udev, pipe,
+			req,
+			request_type,
+			wAddress,
+			wIndex,
+			pbBuffer,
+			buflen,
+			nWaitTime * HZ);
+
+	debug_dump(pbBuffer, len, deb_v8);
+	return len == buflen ? 0 : -EIO;
+}
+
+#define bytes_left_to_read_on_page(paddr,buflen) \
+	((V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)) > buflen \
+	 ? buflen : (V8_MEMORY_PAGE_SIZE - (paddr & V8_MEMORY_PAGE_MASK)))
+
+static int flexcop_usb_memory_req(struct flexcop_usb *fc_usb,
+		flexcop_usb_request_t req, flexcop_usb_mem_page_t page_start,
+		u32 addr, int extended, u8 *buf, u32 len)
+{
+	int i,ret = 0;
+	u16 wMax;
+	u32 pagechunk = 0;
+
+	switch(req) {
+	case B2C2_USB_READ_V8_MEM:
+		wMax = USB_MEM_READ_MAX;
+		break;
+	case B2C2_USB_WRITE_V8_MEM:
+		wMax = USB_MEM_WRITE_MAX;
+		break;
+	case B2C2_USB_FLASH_BLOCK:
+		wMax = USB_FLASH_MAX;
+		break;
+	default:
+		return -EINVAL;
+		break;
+	}
+	for (i = 0; i < len;) {
+		pagechunk =
+			wMax < bytes_left_to_read_on_page(addr, len) ?
+				wMax :
+				bytes_left_to_read_on_page(addr, len);
+		deb_info("%x\n",
+			(addr & V8_MEMORY_PAGE_MASK) |
+				(V8_MEMORY_EXTENDED*extended));
+
+		ret = flexcop_usb_v8_memory_req(fc_usb, req,
+			page_start + (addr / V8_MEMORY_PAGE_SIZE),
+			(addr & V8_MEMORY_PAGE_MASK) |
+				(V8_MEMORY_EXTENDED*extended),
+			&buf[i], pagechunk);
+
+		if (ret < 0)
+			return ret;
+		addr += pagechunk;
+		len -= pagechunk;
+	}
+	return 0;
+}
+
+static int flexcop_usb_get_mac_addr(struct flexcop_device *fc, int extended)
+{
+	return flexcop_usb_memory_req(fc->bus_specific, B2C2_USB_READ_V8_MEM,
+		V8_MEMORY_PAGE_FLASH, 0x1f010, 1,
+		fc->dvb_adapter.proposed_mac, 6);
+}
+
+#if 0
+static int flexcop_usb_utility_req(struct flexcop_usb *fc_usb, int set,
+		flexcop_usb_utility_function_t func, u8 extra, u16 wIndex,
+		u16 buflen, u8 *pvBuffer)
+{
+	u16 wValue;
+	u8 request_type = (set ? USB_DIR_OUT : USB_DIR_IN) | USB_TYPE_VENDOR;
+	int nWaitTime = 2,
+	    pipe = set ? B2C2_USB_CTRL_PIPE_OUT : B2C2_USB_CTRL_PIPE_IN, len;
+	wValue = (func << 8) | extra;
+
+	len = usb_control_msg(fc_usb->udev,pipe,
+			B2C2_USB_UTILITY,
+			request_type,
+			wValue,
+			wIndex,
+			pvBuffer,
+			buflen,
+			nWaitTime * HZ);
+	return len == buflen ? 0 : -EIO;
+}
+#endif
+
+/* usb i2c stuff */
+static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
+		flexcop_usb_request_t req, flexcop_usb_i2c_function_t func,
+		u8 chipaddr, u8 addr, u8 *buf, u8 buflen)
+{
+	struct flexcop_usb *fc_usb = i2c->fc->bus_specific;
+	u16 wValue, wIndex;
+	int nWaitTime,pipe,len;
+	u8 request_type = USB_TYPE_VENDOR;
+
+	switch (func) {
+	case USB_FUNC_I2C_WRITE:
+	case USB_FUNC_I2C_MULTIWRITE:
+	case USB_FUNC_I2C_REPEATWRITE:
+		/* DKT 020208 - add this to support special case of DiSEqC */
+	case USB_FUNC_I2C_CHECKWRITE:
+		pipe = B2C2_USB_CTRL_PIPE_OUT;
+		nWaitTime = 2;
+		request_type |= USB_DIR_OUT;
+		break;
+	case USB_FUNC_I2C_READ:
+	case USB_FUNC_I2C_REPEATREAD:
+		pipe = B2C2_USB_CTRL_PIPE_IN;
+		nWaitTime = 2;
+		request_type |= USB_DIR_IN;
+		break;
+	default:
+		deb_info("unsupported function for i2c_req %x\n", func);
+		return -EINVAL;
+	}
+	wValue = (func << 8) | (i2c->port << 4);
+	wIndex = (chipaddr << 8 ) | addr;
+
+	deb_i2c("i2c %2d: %02x %02x %02x %02x %02x %02x\n",
+			func, request_type, req,
+			wValue & 0xff, wValue >> 8,
+			wIndex & 0xff, wIndex >> 8);
+
+	len = usb_control_msg(fc_usb->udev,pipe,
+			req,
+			request_type,
+			wValue,
+			wIndex,
+			buf,
+			buflen,
+			nWaitTime * HZ);
+	return len == buflen ? 0 : -EREMOTEIO;
+}
+
+/* actual bus specific access functions,
+   make sure prototype are/will be equal to pci */
+static flexcop_ibi_value flexcop_usb_read_ibi_reg(struct flexcop_device *fc,
+	flexcop_ibi_register reg)
+{
+	flexcop_ibi_value val;
+	val.raw = 0;
+	flexcop_usb_readwrite_dw(fc, reg, &val.raw, 1);
+	return val;
+}
+
+static int flexcop_usb_write_ibi_reg(struct flexcop_device *fc,
+		flexcop_ibi_register reg, flexcop_ibi_value val)
+{
+	return flexcop_usb_readwrite_dw(fc, reg, &val.raw, 0);
+}
+
+static int flexcop_usb_i2c_request(struct flexcop_i2c_adapter *i2c,
+		flexcop_access_op_t op, u8 chipaddr, u8 addr, u8 *buf, u16 len)
+{
+	if (op == FC_READ)
+		return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
+				USB_FUNC_I2C_READ, chipaddr, addr, buf, len);
+	else
+		return flexcop_usb_i2c_req(i2c, B2C2_USB_I2C_REQUEST,
+				USB_FUNC_I2C_WRITE, chipaddr, addr, buf, len);
+}
+
+static void flexcop_usb_process_frame(struct flexcop_usb *fc_usb,
+	u8 *buffer, int buffer_length)
+{
+	u8 *b;
+	int l;
+
+	deb_ts("tmp_buffer_length=%d, buffer_length=%d\n",
+		fc_usb->tmp_buffer_length, buffer_length);
+
+	if (fc_usb->tmp_buffer_length > 0) {
+		memcpy(fc_usb->tmp_buffer+fc_usb->tmp_buffer_length, buffer,
+				buffer_length);
+		fc_usb->tmp_buffer_length += buffer_length;
+		b = fc_usb->tmp_buffer;
+		l = fc_usb->tmp_buffer_length;
+	} else {
+		b=buffer;
+		l=buffer_length;
+	}
+
+	while (l >= 190) {
+		if (*b == 0xff) {
+			switch (*(b+1) & 0x03) {
+			case 0x01: /* media packet */
+				if (*(b+2) == 0x47)
+					flexcop_pass_dmx_packets(
+							fc_usb->fc_dev, b+2, 1);
+				else
+					deb_ts("not ts packet %*ph\n", 4, b+2);
+				b += 190;
+				l -= 190;
+				break;
+			default:
+				deb_ts("wrong packet type\n");
+				l = 0;
+				break;
+			}
+		} else {
+			deb_ts("wrong header\n");
+			l = 0;
+		}
+	}
+
+	if (l>0)
+		memcpy(fc_usb->tmp_buffer, b, l);
+	fc_usb->tmp_buffer_length = l;
+}
+
+static void flexcop_usb_urb_complete(struct urb *urb)
+{
+	struct flexcop_usb *fc_usb = urb->context;
+	int i;
+
+	if (urb->actual_length > 0)
+		deb_ts("urb completed, bufsize: %d actlen; %d\n",
+			urb->transfer_buffer_length, urb->actual_length);
+
+	for (i = 0; i < urb->number_of_packets; i++) {
+		if (urb->iso_frame_desc[i].status < 0) {
+			err("iso frame descriptor %d has an error: %d\n", i,
+				urb->iso_frame_desc[i].status);
+		} else
+			if (urb->iso_frame_desc[i].actual_length > 0) {
+				deb_ts("passed %d bytes to the demux\n",
+					urb->iso_frame_desc[i].actual_length);
+
+				flexcop_usb_process_frame(fc_usb,
+					urb->transfer_buffer +
+						urb->iso_frame_desc[i].offset,
+					urb->iso_frame_desc[i].actual_length);
+			}
+		urb->iso_frame_desc[i].status = 0;
+		urb->iso_frame_desc[i].actual_length = 0;
+	}
+	usb_submit_urb(urb,GFP_ATOMIC);
+}
+
+static int flexcop_usb_stream_control(struct flexcop_device *fc, int onoff)
+{
+	/* submit/kill iso packets */
+	return 0;
+}
+
+static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
+{
+	int i;
+	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++)
+		if (fc_usb->iso_urb[i] != NULL) {
+			deb_ts("unlinking/killing urb no. %d\n",i);
+			usb_kill_urb(fc_usb->iso_urb[i]);
+			usb_free_urb(fc_usb->iso_urb[i]);
+		}
+
+	if (fc_usb->iso_buffer != NULL)
+		usb_free_coherent(fc_usb->udev,
+			fc_usb->buffer_size, fc_usb->iso_buffer,
+			fc_usb->dma_addr);
+}
+
+static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
+{
+	u16 frame_size = le16_to_cpu(
+		fc_usb->uintf->cur_altsetting->endpoint[0].desc.wMaxPacketSize);
+	int bufsize = B2C2_USB_NUM_ISO_URB * B2C2_USB_FRAMES_PER_ISO *
+		frame_size, i, j, ret;
+	int buffer_offset = 0;
+
+	deb_ts("creating %d iso-urbs with %d frames "
+			"each of %d bytes size = %d.\n", B2C2_USB_NUM_ISO_URB,
+			B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize);
+
+	fc_usb->iso_buffer = usb_alloc_coherent(fc_usb->udev,
+			bufsize, GFP_KERNEL, &fc_usb->dma_addr);
+	if (fc_usb->iso_buffer == NULL)
+		return -ENOMEM;
+
+	memset(fc_usb->iso_buffer, 0, bufsize);
+	fc_usb->buffer_size = bufsize;
+
+	/* creating iso urbs */
+	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
+		fc_usb->iso_urb[i] = usb_alloc_urb(B2C2_USB_FRAMES_PER_ISO,
+			GFP_ATOMIC);
+		if (fc_usb->iso_urb[i] == NULL) {
+			ret = -ENOMEM;
+			goto urb_error;
+		}
+	}
+
+	/* initialising and submitting iso urbs */
+	for (i = 0; i < B2C2_USB_NUM_ISO_URB; i++) {
+		int frame_offset = 0;
+		struct urb *urb = fc_usb->iso_urb[i];
+		deb_ts("initializing and submitting urb no. %d "
+			"(buf_offset: %d).\n", i, buffer_offset);
+
+		urb->dev = fc_usb->udev;
+		urb->context = fc_usb;
+		urb->complete = flexcop_usb_urb_complete;
+		urb->pipe = B2C2_USB_DATA_PIPE;
+		urb->transfer_flags = URB_ISO_ASAP;
+		urb->interval = 1;
+		urb->number_of_packets = B2C2_USB_FRAMES_PER_ISO;
+		urb->transfer_buffer_length = frame_size * B2C2_USB_FRAMES_PER_ISO;
+		urb->transfer_buffer = fc_usb->iso_buffer + buffer_offset;
+
+		buffer_offset += frame_size * B2C2_USB_FRAMES_PER_ISO;
+		for (j = 0; j < B2C2_USB_FRAMES_PER_ISO; j++) {
+			deb_ts("urb no: %d, frame: %d, frame_offset: %d\n",
+					i, j, frame_offset);
+			urb->iso_frame_desc[j].offset = frame_offset;
+			urb->iso_frame_desc[j].length = frame_size;
+			frame_offset += frame_size;
+		}
+
+		if ((ret = usb_submit_urb(fc_usb->iso_urb[i],GFP_ATOMIC))) {
+			err("submitting urb %d failed with %d.", i, ret);
+			goto urb_error;
+		}
+		deb_ts("submitted urb no. %d.\n",i);
+	}
+
+	/* SRAM */
+	flexcop_sram_set_dest(fc_usb->fc_dev, FC_SRAM_DEST_MEDIA |
+			FC_SRAM_DEST_NET | FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI,
+			FC_SRAM_DEST_TARGET_WAN_USB);
+	flexcop_wan_set_speed(fc_usb->fc_dev, FC_WAN_SPEED_8MBITS);
+	flexcop_sram_ctrl(fc_usb->fc_dev, 1, 1, 1);
+	return 0;
+
+urb_error:
+	flexcop_usb_transfer_exit(fc_usb);
+	return ret;
+}
+
+static int flexcop_usb_init(struct flexcop_usb *fc_usb)
+{
+	/* use the alternate setting with the larges buffer */
+	usb_set_interface(fc_usb->udev,0,1);
+	switch (fc_usb->udev->speed) {
+	case USB_SPEED_LOW:
+		err("cannot handle USB speed because it is too slow.");
+		return -ENODEV;
+		break;
+	case USB_SPEED_FULL:
+		info("running at FULL speed.");
+		break;
+	case USB_SPEED_HIGH:
+		info("running at HIGH speed.");
+		break;
+	case USB_SPEED_UNKNOWN: /* fall through */
+	default:
+		err("cannot handle USB speed because it is unknown.");
+		return -ENODEV;
+	}
+	usb_set_intfdata(fc_usb->uintf, fc_usb);
+	return 0;
+}
+
+static void flexcop_usb_exit(struct flexcop_usb *fc_usb)
+{
+	usb_set_intfdata(fc_usb->uintf, NULL);
+}
+
+static int flexcop_usb_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct flexcop_usb *fc_usb = NULL;
+	struct flexcop_device *fc = NULL;
+	int ret;
+
+	if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
+		err("out of memory\n");
+		return -ENOMEM;
+	}
+
+	/* general flexcop init */
+	fc_usb = fc->bus_specific;
+	fc_usb->fc_dev = fc;
+
+	fc->read_ibi_reg  = flexcop_usb_read_ibi_reg;
+	fc->write_ibi_reg = flexcop_usb_write_ibi_reg;
+	fc->i2c_request = flexcop_usb_i2c_request;
+	fc->get_mac_addr = flexcop_usb_get_mac_addr;
+
+	fc->stream_control = flexcop_usb_stream_control;
+
+	fc->pid_filtering = 1;
+	fc->bus_type = FC_USB;
+
+	fc->dev = &udev->dev;
+	fc->owner = THIS_MODULE;
+
+	/* bus specific part */
+	fc_usb->udev = udev;
+	fc_usb->uintf = intf;
+	if ((ret = flexcop_usb_init(fc_usb)) != 0)
+		goto err_kfree;
+
+	/* init flexcop */
+	if ((ret = flexcop_device_initialize(fc)) != 0)
+		goto err_usb_exit;
+
+	/* xfer init */
+	if ((ret = flexcop_usb_transfer_init(fc_usb)) != 0)
+		goto err_fc_exit;
+
+	info("%s successfully initialized and connected.", DRIVER_NAME);
+	return 0;
+
+err_fc_exit:
+	flexcop_device_exit(fc);
+err_usb_exit:
+	flexcop_usb_exit(fc_usb);
+err_kfree:
+	flexcop_device_kfree(fc);
+	return ret;
+}
+
+static void flexcop_usb_disconnect(struct usb_interface *intf)
+{
+	struct flexcop_usb *fc_usb = usb_get_intfdata(intf);
+	flexcop_usb_transfer_exit(fc_usb);
+	flexcop_device_exit(fc_usb->fc_dev);
+	flexcop_usb_exit(fc_usb);
+	flexcop_device_kfree(fc_usb->fc_dev);
+	info("%s successfully deinitialized and disconnected.", DRIVER_NAME);
+}
+
+static struct usb_device_id flexcop_usb_table [] = {
+	{ USB_DEVICE(0x0af7, 0x0101) },
+	{ }
+};
+MODULE_DEVICE_TABLE (usb, flexcop_usb_table);
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver flexcop_usb_driver = {
+	.name		= "b2c2_flexcop_usb",
+	.probe		= flexcop_usb_probe,
+	.disconnect = flexcop_usb_disconnect,
+	.id_table	= flexcop_usb_table,
+};
+
+module_usb_driver(flexcop_usb_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_NAME);
+MODULE_LICENSE("GPL");

drivers/media/usb/b2c2/flexcop-usb.h

@@ -0,0 +1,111 @@
+/*
+ * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
+ * flexcop-usb.h - header file for the USB part
+ * see flexcop.c for copyright information
+ */
+#ifndef __FLEXCOP_USB_H_INCLUDED__
+#define __FLEXCOP_USB_H_INCLUDED__
+
+#include <linux/usb.h>
+
+/* transfer parameters */
+#define B2C2_USB_FRAMES_PER_ISO 4
+#define B2C2_USB_NUM_ISO_URB 4
+
+#define B2C2_USB_CTRL_PIPE_IN usb_rcvctrlpipe(fc_usb->udev, 0)
+#define B2C2_USB_CTRL_PIPE_OUT usb_sndctrlpipe(fc_usb->udev, 0)
+#define B2C2_USB_DATA_PIPE usb_rcvisocpipe(fc_usb->udev, 0x81)
+
+struct flexcop_usb {
+	struct usb_device *udev;
+	struct usb_interface *uintf;
+
+	u8 *iso_buffer;
+	int buffer_size;
+	dma_addr_t dma_addr;
+
+	struct urb *iso_urb[B2C2_USB_NUM_ISO_URB];
+	struct flexcop_device *fc_dev;
+
+	u8 tmp_buffer[1023+190];
+	int tmp_buffer_length;
+};
+
+#if 0
+/* request types TODO What is its use?*/
+typedef enum {
+
+} flexcop_usb_request_type_t;
+#endif
+
+/* request */
+typedef enum {
+	B2C2_USB_WRITE_V8_MEM = 0x04,
+	B2C2_USB_READ_V8_MEM  = 0x05,
+	B2C2_USB_READ_REG     = 0x08,
+	B2C2_USB_WRITE_REG    = 0x0A,
+	B2C2_USB_WRITEREGHI   = 0x0B,
+	B2C2_USB_FLASH_BLOCK  = 0x10,
+	B2C2_USB_I2C_REQUEST  = 0x11,
+	B2C2_USB_UTILITY      = 0x12,
+} flexcop_usb_request_t;
+
+/* function definition for I2C_REQUEST */
+typedef enum {
+	USB_FUNC_I2C_WRITE       = 0x01,
+	USB_FUNC_I2C_MULTIWRITE  = 0x02,
+	USB_FUNC_I2C_READ        = 0x03,
+	USB_FUNC_I2C_REPEATWRITE = 0x04,
+	USB_FUNC_GET_DESCRIPTOR  = 0x05,
+	USB_FUNC_I2C_REPEATREAD  = 0x06,
+	/* DKT 020208 - add this to support special case of DiSEqC */
+	USB_FUNC_I2C_CHECKWRITE  = 0x07,
+	USB_FUNC_I2C_CHECKRESULT = 0x08,
+} flexcop_usb_i2c_function_t;
+
+/* function definition for UTILITY request 0x12
+ * DKT 020304 - new utility function */
+typedef enum {
+	UTILITY_SET_FILTER          = 0x01,
+	UTILITY_DATA_ENABLE         = 0x02,
+	UTILITY_FLEX_MULTIWRITE     = 0x03,
+	UTILITY_SET_BUFFER_SIZE     = 0x04,
+	UTILITY_FLEX_OPERATOR       = 0x05,
+	UTILITY_FLEX_RESET300_START = 0x06,
+	UTILITY_FLEX_RESET300_STOP  = 0x07,
+	UTILITY_FLEX_RESET300       = 0x08,
+	UTILITY_SET_ISO_SIZE        = 0x09,
+	UTILITY_DATA_RESET          = 0x0A,
+	UTILITY_GET_DATA_STATUS     = 0x10,
+	UTILITY_GET_V8_REG          = 0x11,
+	/* DKT 020326 - add function for v1.14 */
+	UTILITY_SRAM_WRITE          = 0x12,
+	UTILITY_SRAM_READ           = 0x13,
+	UTILITY_SRAM_TESTFILL       = 0x14,
+	UTILITY_SRAM_TESTSET        = 0x15,
+	UTILITY_SRAM_TESTVERIFY     = 0x16,
+} flexcop_usb_utility_function_t;
+
+#define B2C2_WAIT_FOR_OPERATION_RW (1*HZ)
+#define B2C2_WAIT_FOR_OPERATION_RDW (3*HZ)
+#define B2C2_WAIT_FOR_OPERATION_WDW (1*HZ)
+
+#define B2C2_WAIT_FOR_OPERATION_V8READ (3*HZ)
+#define B2C2_WAIT_FOR_OPERATION_V8WRITE (3*HZ)
+#define B2C2_WAIT_FOR_OPERATION_V8FLASH (3*HZ)
+
+typedef enum {
+	V8_MEMORY_PAGE_DVB_CI = 0x20,
+	V8_MEMORY_PAGE_DVB_DS = 0x40,
+	V8_MEMORY_PAGE_MULTI2 = 0x60,
+	V8_MEMORY_PAGE_FLASH  = 0x80
+} flexcop_usb_mem_page_t;
+
+#define V8_MEMORY_EXTENDED (1 << 15)
+#define USB_MEM_READ_MAX   32
+#define USB_MEM_WRITE_MAX   1
+#define USB_FLASH_MAX       8
+#define V8_MEMORY_PAGE_SIZE 0x8000 /* 32K */
+#define V8_MEMORY_PAGE_MASK 0x7FFF
+
+#endif

drivers/media/usb/cpia2/Kconfig

@@ -0,0 +1,9 @@
+config VIDEO_CPIA2
+	tristate "CPiA2 Video For Linux"
+	depends on VIDEO_DEV && USB && VIDEO_V4L2
+	---help---
+	  This is the video4linux driver for cameras based on Vision's CPiA2
+	  (Colour Processor Interface ASIC), such as the Digital Blue QX5
+	  Microscope. If you have one of these cameras, say Y here
+
+	  This driver is also available as a module (cpia2).

drivers/media/usb/cpia2/Makefile

@@ -0,0 +1,3 @@
+cpia2-objs	:= cpia2_v4l.o cpia2_usb.o cpia2_core.o
+
+obj-$(CONFIG_VIDEO_CPIA2) += cpia2.o

drivers/media/usb/cpia2/cpia2.h

@@ -0,0 +1,487 @@
+/****************************************************************************
+ *
+ *  Filename: cpia2.h
+ *
+ *  Copyright 2001, STMicrolectronics, Inc.
+ *
+ *  Contact:  steve.miller@st.com
+ *
+ *  Description:
+ *     This is a USB driver for CPiA2 based video cameras.
+ *
+ *     This driver is modelled on the cpia usb driver by
+ *     Jochen Scharrlach and Johannes Erdfeldt.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ****************************************************************************/
+
+#ifndef __CPIA2_H__
+#define __CPIA2_H__
+
+#include <linux/videodev2.h>
+#include <linux/usb.h>
+#include <linux/poll.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+#include "cpia2_registers.h"
+
+/* define for verbose debug output */
+//#define _CPIA2_DEBUG_
+
+/***
+ * Image defines
+ ***/
+
+/*  Misc constants */
+#define ALLOW_CORRUPT 0		/* Causes collater to discard checksum */
+
+/* USB Transfer mode */
+#define XFER_ISOC 0
+#define XFER_BULK 1
+
+/* USB Alternates */
+#define USBIF_CMDONLY 0
+#define USBIF_BULK 1
+#define USBIF_ISO_1 2	/*  128 bytes/ms */
+#define USBIF_ISO_2 3	/*  384 bytes/ms */
+#define USBIF_ISO_3 4	/*  640 bytes/ms */
+#define USBIF_ISO_4 5	/*  768 bytes/ms */
+#define USBIF_ISO_5 6	/*  896 bytes/ms */
+#define USBIF_ISO_6 7	/* 1023 bytes/ms */
+
+/* Flicker Modes */
+#define NEVER_FLICKER   0
+#define FLICKER_60      60
+#define FLICKER_50      50
+
+/* Debug flags */
+#define DEBUG_NONE          0
+#define DEBUG_REG           0x00000001
+#define DEBUG_DUMP_PATCH    0x00000002
+#define DEBUG_DUMP_REGS     0x00000004
+
+/***
+ * Video frame sizes
+ ***/
+enum {
+	VIDEOSIZE_VGA = 0,	/* 640x480 */
+	VIDEOSIZE_CIF,		/* 352x288 */
+	VIDEOSIZE_QVGA,		/* 320x240 */
+	VIDEOSIZE_QCIF,		/* 176x144 */
+	VIDEOSIZE_288_216,
+	VIDEOSIZE_256_192,
+	VIDEOSIZE_224_168,
+	VIDEOSIZE_192_144,
+};
+
+#define STV_IMAGE_CIF_ROWS    288
+#define STV_IMAGE_CIF_COLS    352
+
+#define STV_IMAGE_QCIF_ROWS   144
+#define STV_IMAGE_QCIF_COLS   176
+
+#define STV_IMAGE_VGA_ROWS    480
+#define STV_IMAGE_VGA_COLS    640
+
+#define STV_IMAGE_QVGA_ROWS   240
+#define STV_IMAGE_QVGA_COLS   320
+
+#define JPEG_MARKER_COM (1<<6)	/* Comment segment */
+
+/***
+ * Enums
+ ***/
+/* Sensor types available with cpia2 asics */
+enum sensors {
+	CPIA2_SENSOR_410,
+	CPIA2_SENSOR_500
+};
+
+/* Asic types available in the CPiA2 architecture */
+#define  CPIA2_ASIC_672 0x67
+
+/* Device types (stv672, stv676, etc) */
+#define  DEVICE_STV_672   0x0001
+#define  DEVICE_STV_676   0x0002
+
+enum frame_status {
+	FRAME_EMPTY,
+	FRAME_READING,		/* In the process of being grabbed into */
+	FRAME_READY,		/* Ready to be read */
+	FRAME_ERROR,
+};
+
+/***
+ * Register access (for USB request byte)
+ ***/
+enum {
+	CAMERAACCESS_SYSTEM = 0,
+	CAMERAACCESS_VC,
+	CAMERAACCESS_VP,
+	CAMERAACCESS_IDATA
+};
+
+#define CAMERAACCESS_TYPE_BLOCK    0x00
+#define CAMERAACCESS_TYPE_RANDOM   0x04
+#define CAMERAACCESS_TYPE_MASK     0x08
+#define CAMERAACCESS_TYPE_REPEAT   0x0C
+
+#define TRANSFER_READ 0
+#define TRANSFER_WRITE 1
+
+#define DEFAULT_ALT   USBIF_ISO_6
+#define DEFAULT_BRIGHTNESS 0x46
+#define DEFAULT_CONTRAST 0x93
+#define DEFAULT_SATURATION 0x7f
+
+/* Power state */
+#define HI_POWER_MODE CPIA2_SYSTEM_CONTROL_HIGH_POWER
+#define LO_POWER_MODE CPIA2_SYSTEM_CONTROL_LOW_POWER
+
+
+/********
+ * Commands
+ *******/
+enum {
+	CPIA2_CMD_NONE = 0,
+	CPIA2_CMD_GET_VERSION,
+	CPIA2_CMD_GET_PNP_ID,
+	CPIA2_CMD_GET_ASIC_TYPE,
+	CPIA2_CMD_GET_SENSOR,
+	CPIA2_CMD_GET_VP_DEVICE,
+	CPIA2_CMD_GET_VP_BRIGHTNESS,
+	CPIA2_CMD_SET_VP_BRIGHTNESS,
+	CPIA2_CMD_GET_CONTRAST,
+	CPIA2_CMD_SET_CONTRAST,
+	CPIA2_CMD_GET_VP_SATURATION,
+	CPIA2_CMD_SET_VP_SATURATION,
+	CPIA2_CMD_GET_VP_GPIO_DIRECTION,
+	CPIA2_CMD_SET_VP_GPIO_DIRECTION,
+	CPIA2_CMD_GET_VP_GPIO_DATA,
+	CPIA2_CMD_SET_VP_GPIO_DATA,
+	CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION,
+	CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
+	CPIA2_CMD_GET_VC_MP_GPIO_DATA,
+	CPIA2_CMD_SET_VC_MP_GPIO_DATA,
+	CPIA2_CMD_ENABLE_PACKET_CTRL,
+	CPIA2_CMD_GET_FLICKER_MODES,
+	CPIA2_CMD_SET_FLICKER_MODES,
+	CPIA2_CMD_RESET_FIFO,	/* clear fifo and enable stream block */
+	CPIA2_CMD_SET_HI_POWER,
+	CPIA2_CMD_SET_LOW_POWER,
+	CPIA2_CMD_CLEAR_V2W_ERR,
+	CPIA2_CMD_SET_USER_MODE,
+	CPIA2_CMD_GET_USER_MODE,
+	CPIA2_CMD_FRAMERATE_REQ,
+	CPIA2_CMD_SET_COMPRESSION_STATE,
+	CPIA2_CMD_GET_WAKEUP,
+	CPIA2_CMD_SET_WAKEUP,
+	CPIA2_CMD_GET_PW_CONTROL,
+	CPIA2_CMD_SET_PW_CONTROL,
+	CPIA2_CMD_GET_SYSTEM_CTRL,
+	CPIA2_CMD_SET_SYSTEM_CTRL,
+	CPIA2_CMD_GET_VP_SYSTEM_STATE,
+	CPIA2_CMD_GET_VP_SYSTEM_CTRL,
+	CPIA2_CMD_SET_VP_SYSTEM_CTRL,
+	CPIA2_CMD_GET_VP_EXP_MODES,
+	CPIA2_CMD_SET_VP_EXP_MODES,
+	CPIA2_CMD_GET_DEVICE_CONFIG,
+	CPIA2_CMD_SET_DEVICE_CONFIG,
+	CPIA2_CMD_SET_SERIAL_ADDR,
+	CPIA2_CMD_SET_SENSOR_CR1,
+	CPIA2_CMD_GET_VC_CONTROL,
+	CPIA2_CMD_SET_VC_CONTROL,
+	CPIA2_CMD_SET_TARGET_KB,
+	CPIA2_CMD_SET_DEF_JPEG_OPT,
+	CPIA2_CMD_REHASH_VP4,
+	CPIA2_CMD_GET_USER_EFFECTS,
+	CPIA2_CMD_SET_USER_EFFECTS
+};
+
+enum user_cmd {
+	COMMAND_NONE = 0x00000001,
+	COMMAND_SET_FPS = 0x00000002,
+	COMMAND_SET_COLOR_PARAMS = 0x00000004,
+	COMMAND_GET_COLOR_PARAMS = 0x00000008,
+	COMMAND_SET_FORMAT = 0x00000010,	/* size, etc */
+	COMMAND_SET_FLICKER = 0x00000020
+};
+
+/***
+ * Some defines specific to the 676 chip
+ ***/
+#define CAMACC_CIF      0x01
+#define CAMACC_VGA      0x02
+#define CAMACC_QCIF     0x04
+#define CAMACC_QVGA     0x08
+
+
+struct cpia2_register {
+	u8 index;
+	u8 value;
+};
+
+struct cpia2_reg_mask {
+	u8 index;
+	u8 and_mask;
+	u8 or_mask;
+	u8 fill;
+};
+
+struct cpia2_command {
+	u32 command;
+	u8 req_mode;		/* (Block or random) | registerBank */
+	u8 reg_count;
+	u8 direction;
+	u8 start;
+	union reg_types {
+		struct cpia2_register registers[32];
+		struct cpia2_reg_mask masks[16];
+		u8 block_data[64];
+		u8 *patch_data;	/* points to function defined block */
+	} buffer;
+};
+
+struct camera_params {
+	struct {
+		u8 firmware_revision_hi; /* For system register set (bank 0) */
+		u8 firmware_revision_lo;
+		u8 asic_id;	/* Video Compressor set (bank 1) */
+		u8 asic_rev;
+		u8 vp_device_hi;	/* Video Processor set (bank 2) */
+		u8 vp_device_lo;
+		u8 sensor_flags;
+		u8 sensor_rev;
+	} version;
+
+	struct {
+		u32 device_type;     /* enumerated from vendor/product ids.
+				      * Currently, either STV_672 or STV_676 */
+		u16 vendor;
+		u16 product;
+		u16 device_revision;
+	} pnp_id;
+
+	struct {
+		u8 brightness;	/* CPIA2_VP_EXPOSURE_TARGET */
+		u8 contrast;	/* Note: this is CPIA2_VP_YRANGE */
+		u8 saturation;	/*  CPIA2_VP_SATURATION */
+	} color_params;
+
+	struct {
+		u8 cam_register;
+		u8 flicker_mode_req;	/* 1 if flicker on, else never flicker */
+	} flicker_control;
+
+	struct {
+		u8 jpeg_options;
+		u8 creep_period;
+		u8 user_squeeze;
+		u8 inhibit_htables;
+	} compression;
+
+	struct {
+		u8 ohsize;	/* output image size */
+		u8 ovsize;
+		u8 hcrop;	/* cropping start_pos/4 */
+		u8 vcrop;
+		u8 hphase;	/* scaling registers */
+		u8 vphase;
+		u8 hispan;
+		u8 vispan;
+		u8 hicrop;
+		u8 vicrop;
+		u8 hifraction;
+		u8 vifraction;
+	} image_size;
+
+	struct {
+		int width;	/* actual window width */
+		int height;	/* actual window height */
+	} roi;
+
+	struct {
+		u8 video_mode;
+		u8 frame_rate;
+		u8 video_size;	/* Not a register, just a convenience for cropped sizes */
+		u8 gpio_direction;
+		u8 gpio_data;
+		u8 system_ctrl;
+		u8 system_state;
+		u8 lowlight_boost;	/* Bool: 0 = off, 1 = on */
+		u8 device_config;
+		u8 exposure_modes;
+		u8 user_effects;
+	} vp_params;
+
+	struct {
+		u8 pw_control;
+		u8 wakeup;
+		u8 vc_control;
+		u8 vc_mp_direction;
+		u8 vc_mp_data;
+		u8 quality;
+	} vc_params;
+
+	struct {
+		u8 power_mode;
+		u8 system_ctrl;
+		u8 stream_mode;	/* This is the current alternate for usb drivers */
+		u8 allow_corrupt;
+	} camera_state;
+};
+
+#define NUM_SBUF    2
+
+struct cpia2_sbuf {
+	char *data;
+	struct urb *urb;
+};
+
+struct framebuf {
+	struct timeval timestamp;
+	unsigned long seq;
+	int num;
+	int length;
+	int max_length;
+	volatile enum frame_status status;
+	u8 *data;
+	struct framebuf *next;
+};
+
+struct camera_data {
+	/* locks */
+	struct v4l2_device v4l2_dev;
+	struct mutex v4l2_lock;	/* serialize file operations */
+	struct v4l2_ctrl_handler hdl;
+	struct {
+		/* Lights control cluster */
+		struct v4l2_ctrl *top_light;
+		struct v4l2_ctrl *bottom_light;
+	};
+	struct v4l2_ctrl *usb_alt;
+
+	/* camera status */
+	int first_image_seen;
+	enum sensors sensor_type;
+	u8 flush;
+	struct v4l2_fh *stream_fh;
+	u8 mmapped;
+	int streaming;		/* 0 = no, 1 = yes */
+	int xfer_mode;		/* XFER_BULK or XFER_ISOC */
+	struct camera_params params;	/* camera settings */
+
+	/* v4l */
+	int video_size;			/* VIDEO_SIZE_ */
+	struct video_device vdev;	/* v4l videodev */
+	u32 width;
+	u32 height;			/* Its size */
+	__u32 pixelformat;       /* Format fourcc      */
+
+	/* USB */
+	struct usb_device *dev;
+	unsigned char iface;
+	unsigned int cur_alt;
+	unsigned int old_alt;
+	struct cpia2_sbuf sbuf[NUM_SBUF];	/* Double buffering */
+
+	wait_queue_head_t wq_stream;
+
+	/* Buffering */
+	u32 frame_size;
+	int num_frames;
+	unsigned long frame_count;
+	u8 *frame_buffer;	/* frame buffer data */
+	struct framebuf *buffers;
+	struct framebuf * volatile curbuff;
+	struct framebuf *workbuff;
+
+	/* MJPEG Extension */
+	int APPn;		/* Number of APP segment to be written, must be 0..15 */
+	int APP_len;		/* Length of data in JPEG APPn segment */
+	char APP_data[60];	/* Data in the JPEG APPn segment. */
+
+	int COM_len;		/* Length of data in JPEG COM segment */
+	char COM_data[60];	/* Data in JPEG COM segment */
+};
+
+/* v4l */
+int cpia2_register_camera(struct camera_data *cam);
+void cpia2_unregister_camera(struct camera_data *cam);
+void cpia2_camera_release(struct v4l2_device *v4l2_dev);
+
+/* core */
+int cpia2_reset_camera(struct camera_data *cam);
+int cpia2_set_low_power(struct camera_data *cam);
+void cpia2_dbg_dump_registers(struct camera_data *cam);
+int cpia2_match_video_size(int width, int height);
+void cpia2_set_camera_state(struct camera_data *cam);
+void cpia2_save_camera_state(struct camera_data *cam);
+void cpia2_set_color_params(struct camera_data *cam);
+void cpia2_set_brightness(struct camera_data *cam, unsigned char value);
+void cpia2_set_contrast(struct camera_data *cam, unsigned char value);
+void cpia2_set_saturation(struct camera_data *cam, unsigned char value);
+int cpia2_set_flicker_mode(struct camera_data *cam, int mode);
+void cpia2_set_format(struct camera_data *cam);
+int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd);
+int cpia2_do_command(struct camera_data *cam,
+		     unsigned int command,
+		     unsigned char direction, unsigned char param);
+struct camera_data *cpia2_init_camera_struct(struct usb_interface *intf);
+int cpia2_init_camera(struct camera_data *cam);
+int cpia2_allocate_buffers(struct camera_data *cam);
+void cpia2_free_buffers(struct camera_data *cam);
+long cpia2_read(struct camera_data *cam,
+		char __user *buf, unsigned long count, int noblock);
+unsigned int cpia2_poll(struct camera_data *cam,
+			struct file *filp, poll_table *wait);
+int cpia2_remap_buffer(struct camera_data *cam, struct vm_area_struct *vma);
+void cpia2_set_property_flip(struct camera_data *cam, int prop_val);
+void cpia2_set_property_mirror(struct camera_data *cam, int prop_val);
+int cpia2_set_gpio(struct camera_data *cam, unsigned char setting);
+int cpia2_set_fps(struct camera_data *cam, int framerate);
+
+/* usb */
+int cpia2_usb_init(void);
+void cpia2_usb_cleanup(void);
+int cpia2_usb_transfer_cmd(struct camera_data *cam, void *registers,
+			   u8 request, u8 start, u8 count, u8 direction);
+int cpia2_usb_stream_start(struct camera_data *cam, unsigned int alternate);
+int cpia2_usb_stream_stop(struct camera_data *cam);
+int cpia2_usb_stream_pause(struct camera_data *cam);
+int cpia2_usb_stream_resume(struct camera_data *cam);
+int cpia2_usb_change_streaming_alternate(struct camera_data *cam,
+					 unsigned int alt);
+
+
+/* ----------------------- debug functions ---------------------- */
+#ifdef _CPIA2_DEBUG_
+#define ALOG(lev, fmt, args...) printk(lev "%s:%d %s(): " fmt, __FILE__, __LINE__, __func__, ## args)
+#define LOG(fmt, args...) ALOG(KERN_INFO, fmt, ## args)
+#define ERR(fmt, args...) ALOG(KERN_ERR, fmt, ## args)
+#define DBG(fmt, args...) ALOG(KERN_DEBUG, fmt, ## args)
+#else
+#define ALOG(fmt,args...) printk(fmt,##args)
+#define LOG(fmt,args...) ALOG(KERN_INFO "cpia2: "fmt,##args)
+#define ERR(fmt,args...) ALOG(KERN_ERR "cpia2: "fmt,##args)
+#define DBG(fmn,args...) do {} while(0)
+#endif
+/* No function or lineno, for shorter lines */
+#define KINFO(fmt, args...) printk(KERN_INFO fmt,##args)
+
+#endif

drivers/media/usb/cpia2/cpia2_registers.h

@@ -0,0 +1,476 @@
+/****************************************************************************
+ *
+ *  Filename: cpia2registers.h
+ *
+ *  Copyright 2001, STMicrolectronics, Inc.
+ *
+ *  Description:
+ *     Definitions for the CPia2 register set
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ****************************************************************************/
+
+#ifndef CPIA2_REGISTER_HEADER
+#define CPIA2_REGISTER_HEADER
+
+/***
+ * System register set (Bank 0)
+ ***/
+#define CPIA2_SYSTEM_DEVICE_HI                     0x00
+#define CPIA2_SYSTEM_DEVICE_LO                     0x01
+
+#define CPIA2_SYSTEM_SYSTEM_CONTROL                0x02
+#define CPIA2_SYSTEM_CONTROL_LOW_POWER       0x00
+#define CPIA2_SYSTEM_CONTROL_HIGH_POWER      0x01
+#define CPIA2_SYSTEM_CONTROL_SUSPEND         0x02
+#define CPIA2_SYSTEM_CONTROL_V2W_ERR         0x10
+#define CPIA2_SYSTEM_CONTROL_RB_ERR          0x10
+#define CPIA2_SYSTEM_CONTROL_CLEAR_ERR       0x80
+
+#define CPIA2_SYSTEM_INT_PACKET_CTRL                0x04
+#define CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_SW_XX 0x01
+#define CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_EOF   0x02
+#define CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_INT1  0x04
+
+#define CPIA2_SYSTEM_CACHE_CTRL                     0x05
+#define CPIA2_SYSTEM_CACHE_CTRL_CACHE_RESET      0x01
+#define CPIA2_SYSTEM_CACHE_CTRL_CACHE_FLUSH      0x02
+
+#define CPIA2_SYSTEM_SERIAL_CTRL                    0x06
+#define CPIA2_SYSTEM_SERIAL_CTRL_NULL_CMD        0x00
+#define CPIA2_SYSTEM_SERIAL_CTRL_START_CMD       0x01
+#define CPIA2_SYSTEM_SERIAL_CTRL_STOP_CMD        0x02
+#define CPIA2_SYSTEM_SERIAL_CTRL_WRITE_CMD       0x03
+#define CPIA2_SYSTEM_SERIAL_CTRL_READ_ACK_CMD    0x04
+#define CPIA2_SYSTEM_SERIAL_CTRL_READ_NACK_CMD   0x05
+
+#define CPIA2_SYSTEM_SERIAL_DATA                     0x07
+
+#define CPIA2_SYSTEM_VP_SERIAL_ADDR                  0x08
+
+/***
+ * I2C addresses for various devices in CPiA2
+ ***/
+#define CPIA2_SYSTEM_VP_SERIAL_ADDR_SENSOR           0x20
+#define CPIA2_SYSTEM_VP_SERIAL_ADDR_VP               0x88
+#define CPIA2_SYSTEM_VP_SERIAL_ADDR_676_VP           0x8A
+
+#define CPIA2_SYSTEM_SPARE_REG1                      0x09
+#define CPIA2_SYSTEM_SPARE_REG2                      0x0A
+#define CPIA2_SYSTEM_SPARE_REG3                      0x0B
+
+#define CPIA2_SYSTEM_MC_PORT_0                       0x0C
+#define CPIA2_SYSTEM_MC_PORT_1                       0x0D
+#define CPIA2_SYSTEM_MC_PORT_2                       0x0E
+#define CPIA2_SYSTEM_MC_PORT_3                       0x0F
+
+#define CPIA2_SYSTEM_STATUS_PKT                      0x20
+#define CPIA2_SYSTEM_STATUS_PKT_END                  0x27
+
+#define CPIA2_SYSTEM_DESCRIP_VID_HI                  0x30
+#define CPIA2_SYSTEM_DESCRIP_VID_LO                  0x31
+#define CPIA2_SYSTEM_DESCRIP_PID_HI                  0x32
+#define CPIA2_SYSTEM_DESCRIP_PID_LO                  0x33
+
+#define CPIA2_SYSTEM_FW_VERSION_HI                   0x34
+#define CPIA2_SYSTEM_FW_VERSION_LO                   0x35
+
+#define CPIA2_SYSTEM_CACHE_START_INDEX               0x80
+#define CPIA2_SYSTEM_CACHE_MAX_WRITES                0x10
+
+/***
+ * VC register set (Bank 1)
+ ***/
+#define CPIA2_VC_ASIC_ID                 0x80
+
+#define CPIA2_VC_ASIC_REV                0x81
+
+#define CPIA2_VC_PW_CTRL                 0x82
+#define CPIA2_VC_PW_CTRL_COLDSTART      0x01
+#define CPIA2_VC_PW_CTRL_CP_CLK_EN      0x02
+#define CPIA2_VC_PW_CTRL_VP_RESET_N     0x04
+#define CPIA2_VC_PW_CTRL_VC_CLK_EN      0x08
+#define CPIA2_VC_PW_CTRL_VC_RESET_N     0x10
+#define CPIA2_VC_PW_CTRL_GOTO_SUSPEND   0x20
+#define CPIA2_VC_PW_CTRL_UDC_SUSPEND    0x40
+#define CPIA2_VC_PW_CTRL_PWR_DOWN       0x80
+
+#define CPIA2_VC_WAKEUP                   0x83
+#define CPIA2_VC_WAKEUP_SW_ENABLE       0x01
+#define CPIA2_VC_WAKEUP_XX_ENABLE       0x02
+#define CPIA2_VC_WAKEUP_SW_ATWAKEUP     0x04
+#define CPIA2_VC_WAKEUP_XX_ATWAKEUP     0x08
+
+#define CPIA2_VC_CLOCK_CTRL               0x84
+#define CPIA2_VC_CLOCK_CTRL_TESTUP72    0x01
+
+#define CPIA2_VC_INT_ENABLE                0x88
+#define CPIA2_VC_INT_ENABLE_XX_IE       0x01
+#define CPIA2_VC_INT_ENABLE_SW_IE       0x02
+#define CPIA2_VC_INT_ENABLE_VC_IE       0x04
+#define CPIA2_VC_INT_ENABLE_USBDATA_IE  0x08
+#define CPIA2_VC_INT_ENABLE_USBSETUP_IE 0x10
+#define CPIA2_VC_INT_ENABLE_USBCFG_IE   0x20
+
+#define CPIA2_VC_INT_FLAG                  0x89
+#define CPIA2_VC_INT_ENABLE_XX_FLAG       0x01
+#define CPIA2_VC_INT_ENABLE_SW_FLAG       0x02
+#define CPIA2_VC_INT_ENABLE_VC_FLAG       0x04
+#define CPIA2_VC_INT_ENABLE_USBDATA_FLAG  0x08
+#define CPIA2_VC_INT_ENABLE_USBSETUP_FLAG 0x10
+#define CPIA2_VC_INT_ENABLE_USBCFG_FLAG   0x20
+#define CPIA2_VC_INT_ENABLE_SET_RESET_BIT 0x80
+
+#define CPIA2_VC_INT_STATE                 0x8A
+#define CPIA2_VC_INT_STATE_XX_STATE     0x01
+#define CPIA2_VC_INT_STATE_SW_STATE     0x02
+
+#define CPIA2_VC_MP_DIR                    0x90
+#define CPIA2_VC_MP_DIR_INPUT           0x00
+#define CPIA2_VC_MP_DIR_OUTPUT          0x01
+
+#define CPIA2_VC_MP_DATA                   0x91
+
+#define CPIA2_VC_DP_CTRL                   0x98
+#define CPIA2_VC_DP_CTRL_MODE_0         0x00
+#define CPIA2_VC_DP_CTRL_MODE_A         0x01
+#define CPIA2_VC_DP_CTRL_MODE_B         0x02
+#define CPIA2_VC_DP_CTRL_MODE_C         0x03
+#define CPIA2_VC_DP_CTRL_FAKE_FST       0x04
+
+#define CPIA2_VC_AD_CTRL                   0x99
+#define CPIA2_VC_AD_CTRL_SRC_0          0x00
+#define CPIA2_VC_AD_CTRL_SRC_DIGI_A     0x01
+#define CPIA2_VC_AD_CTRL_SRC_REG        0x02
+#define CPIA2_VC_AD_CTRL_DST_USB        0x00
+#define CPIA2_VC_AD_CTRL_DST_REG        0x04
+
+#define CPIA2_VC_AD_TEST_IN                0x9B
+
+#define CPIA2_VC_AD_TEST_OUT               0x9C
+
+#define CPIA2_VC_AD_STATUS                 0x9D
+#define CPIA2_VC_AD_STATUS_EMPTY        0x01
+#define CPIA2_VC_AD_STATUS_FULL         0x02
+
+#define CPIA2_VC_DP_DATA                   0x9E
+
+#define CPIA2_VC_ST_CTRL                   0xA0
+#define CPIA2_VC_ST_CTRL_SRC_VC         0x00
+#define CPIA2_VC_ST_CTRL_SRC_DP         0x01
+#define CPIA2_VC_ST_CTRL_SRC_REG        0x02
+
+#define CPIA2_VC_ST_CTRL_RAW_SELECT     0x04
+
+#define CPIA2_VC_ST_CTRL_DST_USB        0x00
+#define CPIA2_VC_ST_CTRL_DST_DP         0x08
+#define CPIA2_VC_ST_CTRL_DST_REG        0x10
+
+#define CPIA2_VC_ST_CTRL_FIFO_ENABLE    0x20
+#define CPIA2_VC_ST_CTRL_EOF_DETECT     0x40
+
+#define CPIA2_VC_ST_TEST                   0xA1
+#define CPIA2_VC_ST_TEST_MODE_MANUAL    0x00
+#define CPIA2_VC_ST_TEST_MODE_INCREMENT 0x02
+
+#define CPIA2_VC_ST_TEST_AUTO_FILL      0x08
+
+#define CPIA2_VC_ST_TEST_REPEAT_FIFO    0x10
+
+#define CPIA2_VC_ST_TEST_IN                0xA2
+
+#define CPIA2_VC_ST_TEST_OUT               0xA3
+
+#define CPIA2_VC_ST_STATUS                 0xA4
+#define CPIA2_VC_ST_STATUS_EMPTY        0x01
+#define CPIA2_VC_ST_STATUS_FULL         0x02
+
+#define CPIA2_VC_ST_FRAME_DETECT_1         0xA5
+
+#define CPIA2_VC_ST_FRAME_DETECT_2         0xA6
+
+#define CPIA2_VC_USB_CTRL                    0xA8
+#define CPIA2_VC_USB_CTRL_CMD_STALLED      0x01
+#define CPIA2_VC_USB_CTRL_CMD_READY        0x02
+#define CPIA2_VC_USB_CTRL_CMD_STATUS       0x04
+#define CPIA2_VC_USB_CTRL_CMD_STATUS_DIR   0x08
+#define CPIA2_VC_USB_CTRL_CMD_NO_CLASH     0x10
+#define CPIA2_VC_USB_CTRL_CMD_MICRO_ACCESS 0x80
+
+#define CPIA2_VC_USB_STRM                  0xA9
+#define CPIA2_VC_USB_STRM_ISO_ENABLE    0x01
+#define CPIA2_VC_USB_STRM_BLK_ENABLE    0x02
+#define CPIA2_VC_USB_STRM_INT_ENABLE    0x04
+#define CPIA2_VC_USB_STRM_AUD_ENABLE    0x08
+
+#define CPIA2_VC_USB_STATUS                   0xAA
+#define CPIA2_VC_USB_STATUS_CMD_IN_PROGRESS  0x01
+#define CPIA2_VC_USB_STATUS_CMD_STATUS_STALL 0x02
+#define CPIA2_VC_USB_STATUS_CMD_HANDSHAKE    0x04
+#define CPIA2_VC_USB_STATUS_CMD_OVERRIDE     0x08
+#define CPIA2_VC_USB_STATUS_CMD_FIFO_BUSY    0x10
+#define CPIA2_VC_USB_STATUS_BULK_REPEAT_TXN  0x20
+#define CPIA2_VC_USB_STATUS_CONFIG_DONE      0x40
+#define CPIA2_VC_USB_STATUS_USB_SUSPEND      0x80
+
+#define CPIA2_VC_USB_CMDW                   0xAB
+
+#define CPIA2_VC_USB_DATARW                 0xAC
+
+#define CPIA2_VC_USB_INFO                   0xAD
+
+#define CPIA2_VC_USB_CONFIG                 0xAE
+
+#define CPIA2_VC_USB_SETTINGS                  0xAF
+#define CPIA2_VC_USB_SETTINGS_CONFIG_MASK    0x03
+#define CPIA2_VC_USB_SETTINGS_INTERFACE_MASK 0x0C
+#define CPIA2_VC_USB_SETTINGS_ALTERNATE_MASK 0x70
+
+#define CPIA2_VC_USB_ISOLIM                  0xB0
+
+#define CPIA2_VC_USB_ISOFAILS                0xB1
+
+#define CPIA2_VC_USB_ISOMAXPKTHI             0xB2
+
+#define CPIA2_VC_USB_ISOMAXPKTLO             0xB3
+
+#define CPIA2_VC_V2W_CTRL                    0xB8
+#define CPIA2_VC_V2W_SELECT               0x01
+
+#define CPIA2_VC_V2W_SCL                     0xB9
+
+#define CPIA2_VC_V2W_SDA                     0xBA
+
+#define CPIA2_VC_VC_CTRL                     0xC0
+#define CPIA2_VC_VC_CTRL_RUN              0x01
+#define CPIA2_VC_VC_CTRL_SINGLESHOT       0x02
+#define CPIA2_VC_VC_CTRL_IDLING           0x04
+#define CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES 0x10
+#define CPIA2_VC_VC_CTRL_INHIBIT_Q_TABLES 0x20
+#define CPIA2_VC_VC_CTRL_INHIBIT_PRIVATE  0x40
+
+#define CPIA2_VC_VC_RESTART_IVAL_HI          0xC1
+
+#define CPIA2_VC_VC_RESTART_IVAL_LO          0xC2
+
+#define CPIA2_VC_VC_FORMAT                   0xC3
+#define CPIA2_VC_VC_FORMAT_UFIRST         0x01
+#define CPIA2_VC_VC_FORMAT_MONO           0x02
+#define CPIA2_VC_VC_FORMAT_DECIMATING     0x04
+#define CPIA2_VC_VC_FORMAT_SHORTLINE      0x08
+#define CPIA2_VC_VC_FORMAT_SELFTEST       0x10
+
+#define CPIA2_VC_VC_CLOCKS                         0xC4
+#define CPIA2_VC_VC_CLOCKS_CLKDIV_MASK        0x03
+#define CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3   0x04
+#define CPIA2_VC_VC_672_CLOCKS_SCALING        0x08
+#define CPIA2_VC_VC_CLOCKS_LOGDIV0        0x00
+#define CPIA2_VC_VC_CLOCKS_LOGDIV1        0x01
+#define CPIA2_VC_VC_CLOCKS_LOGDIV2        0x02
+#define CPIA2_VC_VC_CLOCKS_LOGDIV3        0x03
+#define CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3   0x08
+#define CPIA2_VC_VC_676_CLOCKS_SCALING	      0x10
+
+#define CPIA2_VC_VC_IHSIZE_LO                0xC5
+
+#define CPIA2_VC_VC_XLIM_HI                  0xC6
+
+#define CPIA2_VC_VC_XLIM_LO                  0xC7
+
+#define CPIA2_VC_VC_YLIM_HI                  0xC8
+
+#define CPIA2_VC_VC_YLIM_LO                  0xC9
+
+#define CPIA2_VC_VC_OHSIZE                   0xCA
+
+#define CPIA2_VC_VC_OVSIZE                   0xCB
+
+#define CPIA2_VC_VC_HCROP                    0xCC
+
+#define CPIA2_VC_VC_VCROP                    0xCD
+
+#define CPIA2_VC_VC_HPHASE                   0xCE
+
+#define CPIA2_VC_VC_VPHASE                   0xCF
+
+#define CPIA2_VC_VC_HISPAN                   0xD0
+
+#define CPIA2_VC_VC_VISPAN                   0xD1
+
+#define CPIA2_VC_VC_HICROP                   0xD2
+
+#define CPIA2_VC_VC_VICROP                   0xD3
+
+#define CPIA2_VC_VC_HFRACT                   0xD4
+#define CPIA2_VC_VC_HFRACT_DEN_MASK       0x0F
+#define CPIA2_VC_VC_HFRACT_NUM_MASK       0xF0
+
+#define CPIA2_VC_VC_VFRACT                   0xD5
+#define CPIA2_VC_VC_VFRACT_DEN_MASK       0x0F
+#define CPIA2_VC_VC_VFRACT_NUM_MASK       0xF0
+
+#define CPIA2_VC_VC_JPEG_OPT                      0xD6
+#define CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE     0x01
+#define CPIA2_VC_VC_JPEG_OPT_NO_DC_AUTO_SQUEEZE 0x02
+#define CPIA2_VC_VC_JPEG_OPT_AUTO_SQUEEZE       0x04
+#define CPIA2_VC_VC_JPEG_OPT_DEFAULT      (CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE|\
+					   CPIA2_VC_VC_JPEG_OPT_AUTO_SQUEEZE)
+
+
+#define CPIA2_VC_VC_CREEP_PERIOD             0xD7
+#define CPIA2_VC_VC_USER_SQUEEZE             0xD8
+#define CPIA2_VC_VC_TARGET_KB                0xD9
+
+#define CPIA2_VC_VC_AUTO_SQUEEZE             0xE6
+
+
+/***
+ * VP register set (Bank 2)
+ ***/
+#define CPIA2_VP_DEVICEH                             0
+#define CPIA2_VP_DEVICEL                             1
+
+#define CPIA2_VP_SYSTEMSTATE                         0x02
+#define CPIA2_VP_SYSTEMSTATE_HK_ALIVE             0x01
+
+#define CPIA2_VP_SYSTEMCTRL                          0x03
+#define CPIA2_VP_SYSTEMCTRL_REQ_CLEAR_ERROR       0x80
+#define CPIA2_VP_SYSTEMCTRL_POWER_DOWN_PLL        0x20
+#define CPIA2_VP_SYSTEMCTRL_REQ_SUSPEND_STATE     0x10
+#define CPIA2_VP_SYSTEMCTRL_REQ_SERIAL_WAKEUP     0x08
+#define CPIA2_VP_SYSTEMCTRL_REQ_AUTOLOAD          0x04
+#define CPIA2_VP_SYSTEMCTRL_HK_CONTROL            0x02
+#define CPIA2_VP_SYSTEMCTRL_POWER_CONTROL         0x01
+
+#define CPIA2_VP_SENSOR_FLAGS                        0x05
+#define CPIA2_VP_SENSOR_FLAGS_404                 0x01
+#define CPIA2_VP_SENSOR_FLAGS_407                 0x02
+#define CPIA2_VP_SENSOR_FLAGS_409                 0x04
+#define CPIA2_VP_SENSOR_FLAGS_410                 0x08
+#define CPIA2_VP_SENSOR_FLAGS_500                 0x10
+
+#define CPIA2_VP_SENSOR_REV                          0x06
+
+#define CPIA2_VP_DEVICE_CONFIG                       0x07
+#define CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE      0x01
+
+#define CPIA2_VP_GPIO_DIRECTION                      0x08
+#define CPIA2_VP_GPIO_READ                        0xFF
+#define CPIA2_VP_GPIO_WRITE                       0x00
+
+#define CPIA2_VP_GPIO_DATA                           0x09
+
+#define CPIA2_VP_RAM_ADDR_H                          0x0A
+#define CPIA2_VP_RAM_ADDR_L                          0x0B
+#define CPIA2_VP_RAM_DATA                            0x0C
+
+#define CPIA2_VP_PATCH_REV                           0x0F
+
+#define CPIA2_VP4_USER_MODE                           0x10
+#define CPIA2_VP5_USER_MODE                           0x13
+#define CPIA2_VP_USER_MODE_CIF                    0x01
+#define CPIA2_VP_USER_MODE_QCIFDS                 0x02
+#define CPIA2_VP_USER_MODE_QCIFPTC                0x04
+#define CPIA2_VP_USER_MODE_QVGADS                 0x08
+#define CPIA2_VP_USER_MODE_QVGAPTC                0x10
+#define CPIA2_VP_USER_MODE_VGA                    0x20
+
+#define CPIA2_VP4_FRAMERATE_REQUEST                    0x11
+#define CPIA2_VP5_FRAMERATE_REQUEST                    0x14
+#define CPIA2_VP_FRAMERATE_60                     0x80
+#define CPIA2_VP_FRAMERATE_50                     0x40
+#define CPIA2_VP_FRAMERATE_30                     0x20
+#define CPIA2_VP_FRAMERATE_25                     0x10
+#define CPIA2_VP_FRAMERATE_15                     0x08
+#define CPIA2_VP_FRAMERATE_12_5                   0x04
+#define CPIA2_VP_FRAMERATE_7_5                    0x02
+#define CPIA2_VP_FRAMERATE_6_25                   0x01
+
+#define CPIA2_VP4_USER_EFFECTS                         0x12
+#define CPIA2_VP5_USER_EFFECTS                         0x15
+#define CPIA2_VP_USER_EFFECTS_COLBARS             0x01
+#define CPIA2_VP_USER_EFFECTS_COLBARS_GRAD        0x02
+#define CPIA2_VP_USER_EFFECTS_MIRROR              0x04
+#define CPIA2_VP_USER_EFFECTS_FLIP                0x40  // VP5 only
+
+/* NOTE: CPIA2_VP_EXPOSURE_MODES shares the same register as VP5 User
+ * Effects */
+#define CPIA2_VP_EXPOSURE_MODES                       0x15
+#define CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER   0x20
+#define CPIA2_VP_EXPOSURE_MODES_COMPILE_EXP       0x10
+
+#define CPIA2_VP4_EXPOSURE_TARGET                     0x16    // VP4
+#define CPIA2_VP5_EXPOSURE_TARGET		      0x20    // VP5
+
+#define CPIA2_VP_FLICKER_MODES                        0x1B
+#define CPIA2_VP_FLICKER_MODES_50HZ               0x80
+#define CPIA2_VP_FLICKER_MODES_CUSTOM_FLT_FFREQ   0x40
+#define CPIA2_VP_FLICKER_MODES_NEVER_FLICKER      0x20
+#define CPIA2_VP_FLICKER_MODES_INHIBIT_RUB        0x10
+#define CPIA2_VP_FLICKER_MODES_ADJUST_LINE_FREQ   0x08
+#define CPIA2_VP_FLICKER_MODES_CUSTOM_INT_FFREQ   0x04
+
+#define CPIA2_VP_UMISC                                0x1D
+#define CPIA2_VP_UMISC_FORCE_MONO                 0x80
+#define CPIA2_VP_UMISC_FORCE_ID_MASK              0x40
+#define CPIA2_VP_UMISC_INHIBIT_AUTO_FGS           0x20
+#define CPIA2_VP_UMISC_INHIBIT_AUTO_DIMS          0x08
+#define CPIA2_VP_UMISC_OPT_FOR_SENSOR_DS          0x04
+#define CPIA2_VP_UMISC_INHIBIT_AUTO_MODE_INT      0x02
+
+#define CPIA2_VP5_ANTIFLKRSETUP                       0x22  //34
+
+#define CPIA2_VP_INTERPOLATION                        0x24
+#define CPIA2_VP_INTERPOLATION_EVEN_FIRST         0x40
+#define CPIA2_VP_INTERPOLATION_HJOG               0x20
+#define CPIA2_VP_INTERPOLATION_VJOG               0x10
+
+#define CPIA2_VP_GAMMA                                0x25
+#define CPIA2_VP_DEFAULT_GAMMA                    0x10
+
+#define CPIA2_VP_YRANGE                               0x26
+
+#define CPIA2_VP_SATURATION                           0x27
+
+#define CPIA2_VP5_MYBLACK_LEVEL                       0x3A   //58
+#define CPIA2_VP5_MCYRANGE                            0x3B   //59
+#define CPIA2_VP5_MYCEILING                           0x3C   //60
+#define CPIA2_VP5_MCUVSATURATION                      0x3D   //61
+
+
+#define CPIA2_VP_REHASH_VALUES                        0x60
+
+
+/***
+ * Common sensor registers
+ ***/
+#define CPIA2_SENSOR_DEVICE_H                         0x00
+#define CPIA2_SENSOR_DEVICE_L                         0x01
+
+#define CPIA2_SENSOR_DATA_FORMAT                      0x16
+#define CPIA2_SENSOR_DATA_FORMAT_HMIRROR      0x08
+#define CPIA2_SENSOR_DATA_FORMAT_VMIRROR      0x10
+
+#define CPIA2_SENSOR_CR1                              0x76
+#define CPIA2_SENSOR_CR1_STAND_BY             0x01
+#define CPIA2_SENSOR_CR1_DOWN_RAMP_GEN        0x02
+#define CPIA2_SENSOR_CR1_DOWN_COLUMN_ADC      0x04
+#define CPIA2_SENSOR_CR1_DOWN_CAB_REGULATOR   0x08
+#define CPIA2_SENSOR_CR1_DOWN_AUDIO_REGULATOR 0x10
+#define CPIA2_SENSOR_CR1_DOWN_VRT_AMP         0x20
+#define CPIA2_SENSOR_CR1_DOWN_BAND_GAP        0x40
+
+#endif

drivers/media/usb/cpia2/cpia2_usb.c

@@ -0,0 +1,955 @@
+/****************************************************************************
+ *
+ *  Filename: cpia2_usb.c
+ *
+ *  Copyright 2001, STMicrolectronics, Inc.
+ *      Contact:  steve.miller@st.com
+ *
+ *  Description:
+ *     This is a USB driver for CPia2 based video cameras.
+ *     The infrastructure of this driver is based on the cpia usb driver by
+ *     Jochen Scharrlach and Johannes Erdfeldt.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Stripped of 2.4 stuff ready for main kernel submit by
+ *		Alan Cox <alan@lxorguk.ukuu.org.uk>
+ ****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/module.h>
+
+#include "cpia2.h"
+
+static int frame_sizes[] = {
+	0,	// USBIF_CMDONLY
+	0, 	// USBIF_BULK
+	128, 	// USBIF_ISO_1
+	384, 	// USBIF_ISO_2
+	640, 	// USBIF_ISO_3
+	768, 	// USBIF_ISO_4
+	896, 	// USBIF_ISO_5
+	1023, 	// USBIF_ISO_6
+};
+
+#define FRAMES_PER_DESC    10
+#define FRAME_SIZE_PER_DESC   frame_sizes[cam->cur_alt]
+
+static void process_frame(struct camera_data *cam);
+static void cpia2_usb_complete(struct urb *urb);
+static int cpia2_usb_probe(struct usb_interface *intf,
+			   const struct usb_device_id *id);
+static void cpia2_usb_disconnect(struct usb_interface *intf);
+static int cpia2_usb_suspend(struct usb_interface *intf, pm_message_t message);
+static int cpia2_usb_resume(struct usb_interface *intf);
+
+static void free_sbufs(struct camera_data *cam);
+static void add_APPn(struct camera_data *cam);
+static void add_COM(struct camera_data *cam);
+static int submit_urbs(struct camera_data *cam);
+static int set_alternate(struct camera_data *cam, unsigned int alt);
+static int configure_transfer_mode(struct camera_data *cam, unsigned int alt);
+
+static struct usb_device_id cpia2_id_table[] = {
+	{USB_DEVICE(0x0553, 0x0100)},
+	{USB_DEVICE(0x0553, 0x0140)},
+	{USB_DEVICE(0x0553, 0x0151)},  /* STV0676 */
+	{}			/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, cpia2_id_table);
+
+static struct usb_driver cpia2_driver = {
+	.name		= "cpia2",
+	.probe		= cpia2_usb_probe,
+	.disconnect	= cpia2_usb_disconnect,
+	.suspend	= cpia2_usb_suspend,
+	.resume		= cpia2_usb_resume,
+	.reset_resume	= cpia2_usb_resume,
+	.id_table	= cpia2_id_table
+};
+
+
+/******************************************************************************
+ *
+ *  process_frame
+ *
+ *****************************************************************************/
+static void process_frame(struct camera_data *cam)
+{
+	static int frame_count;
+
+	unsigned char *inbuff = cam->workbuff->data;
+
+	DBG("Processing frame #%d, current:%d\n",
+	    cam->workbuff->num, cam->curbuff->num);
+
+	if(cam->workbuff->length > cam->workbuff->max_length)
+		cam->workbuff->max_length = cam->workbuff->length;
+
+	if ((inbuff[0] == 0xFF) && (inbuff[1] == 0xD8)) {
+		frame_count++;
+	} else {
+		cam->workbuff->status = FRAME_ERROR;
+		DBG("Start of frame not found\n");
+		return;
+	}
+
+	/***
+	 * Now the output buffer should have a JPEG image in it.
+	 ***/
+	if(!cam->first_image_seen) {
+		/* Always skip the first image after streaming
+		 * starts. It is almost certainly corrupt. */
+		cam->first_image_seen = 1;
+		cam->workbuff->status = FRAME_EMPTY;
+		return;
+	}
+	if (cam->workbuff->length > 3) {
+		if(cam->mmapped &&
+		   cam->workbuff->length < cam->workbuff->max_length) {
+			/* No junk in the buffers */
+			memset(cam->workbuff->data+cam->workbuff->length,
+			       0, cam->workbuff->max_length-
+				  cam->workbuff->length);
+		}
+		cam->workbuff->max_length = cam->workbuff->length;
+		cam->workbuff->status = FRAME_READY;
+
+		if(!cam->mmapped && cam->num_frames > 2) {
+			/* During normal reading, the most recent
+			 * frame will be read.  If the current frame
+			 * hasn't started reading yet, it will never
+			 * be read, so mark it empty.  If the buffer is
+			 * mmapped, or we have few buffers, we need to
+			 * wait for the user to free the buffer.
+			 *
+			 * NOTE: This is not entirely foolproof with 3
+			 * buffers, but it would take an EXTREMELY
+			 * overloaded system to cause problems (possible
+			 * image data corruption).  Basically, it would
+			 * need to take more time to execute cpia2_read
+			 * than it would for the camera to send
+			 * cam->num_frames-2 frames before problems
+			 * could occur.
+			 */
+			cam->curbuff->status = FRAME_EMPTY;
+		}
+		cam->curbuff = cam->workbuff;
+		cam->workbuff = cam->workbuff->next;
+		DBG("Changed buffers, work:%d, current:%d\n",
+		    cam->workbuff->num, cam->curbuff->num);
+		return;
+	} else {
+		DBG("Not enough data for an image.\n");
+	}
+
+	cam->workbuff->status = FRAME_ERROR;
+	return;
+}
+
+/******************************************************************************
+ *
+ *  add_APPn
+ *
+ *  Adds a user specified APPn record
+ *****************************************************************************/
+static void add_APPn(struct camera_data *cam)
+{
+	if(cam->APP_len > 0) {
+		cam->workbuff->data[cam->workbuff->length++] = 0xFF;
+		cam->workbuff->data[cam->workbuff->length++] = 0xE0+cam->APPn;
+		cam->workbuff->data[cam->workbuff->length++] = 0;
+		cam->workbuff->data[cam->workbuff->length++] = cam->APP_len+2;
+		memcpy(cam->workbuff->data+cam->workbuff->length,
+		       cam->APP_data, cam->APP_len);
+		cam->workbuff->length += cam->APP_len;
+	}
+}
+
+/******************************************************************************
+ *
+ *  add_COM
+ *
+ *  Adds a user specified COM record
+ *****************************************************************************/
+static void add_COM(struct camera_data *cam)
+{
+	if(cam->COM_len > 0) {
+		cam->workbuff->data[cam->workbuff->length++] = 0xFF;
+		cam->workbuff->data[cam->workbuff->length++] = 0xFE;
+		cam->workbuff->data[cam->workbuff->length++] = 0;
+		cam->workbuff->data[cam->workbuff->length++] = cam->COM_len+2;
+		memcpy(cam->workbuff->data+cam->workbuff->length,
+		       cam->COM_data, cam->COM_len);
+		cam->workbuff->length += cam->COM_len;
+	}
+}
+
+/******************************************************************************
+ *
+ *  cpia2_usb_complete
+ *
+ *  callback when incoming packet is received
+ *****************************************************************************/
+static void cpia2_usb_complete(struct urb *urb)
+{
+	int i;
+	unsigned char *cdata;
+	static bool frame_ready = false;
+	struct camera_data *cam = (struct camera_data *) urb->context;
+
+	if (urb->status!=0) {
+		if (!(urb->status == -ENOENT ||
+		      urb->status == -ECONNRESET ||
+		      urb->status == -ESHUTDOWN))
+		{
+			DBG("urb->status = %d!\n", urb->status);
+		}
+		DBG("Stopping streaming\n");
+		return;
+	}
+
+	if (!cam->streaming || !video_is_registered(&cam->vdev)) {
+		LOG("Will now stop the streaming: streaming = %d, present=%d\n",
+		    cam->streaming, video_is_registered(&cam->vdev));
+		return;
+	}
+
+	/***
+	 * Packet collater
+	 ***/
+	//DBG("Collating %d packets\n", urb->number_of_packets);
+	for (i = 0; i < urb->number_of_packets; i++) {
+		u16 checksum, iso_checksum;
+		int j;
+		int n = urb->iso_frame_desc[i].actual_length;
+		int st = urb->iso_frame_desc[i].status;
+
+		if(cam->workbuff->status == FRAME_READY) {
+			struct framebuf *ptr;
+			/* Try to find an available buffer */
+			DBG("workbuff full, searching\n");
+			for (ptr = cam->workbuff->next;
+			     ptr != cam->workbuff;
+			     ptr = ptr->next)
+			{
+				if (ptr->status == FRAME_EMPTY) {
+					ptr->status = FRAME_READING;
+					ptr->length = 0;
+					break;
+				}
+			}
+			if (ptr == cam->workbuff)
+				break; /* No READING or EMPTY buffers left */
+
+			cam->workbuff = ptr;
+		}
+
+		if (cam->workbuff->status == FRAME_EMPTY ||
+		    cam->workbuff->status == FRAME_ERROR) {
+			cam->workbuff->status = FRAME_READING;
+			cam->workbuff->length = 0;
+		}
+
+		//DBG("   Packet %d length = %d, status = %d\n", i, n, st);
+		cdata = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+
+		if (st) {
+			LOG("cpia2 data error: [%d] len=%d, status = %d\n",
+			    i, n, st);
+			if(!ALLOW_CORRUPT)
+				cam->workbuff->status = FRAME_ERROR;
+			continue;
+		}
+
+		if(n<=2)
+			continue;
+
+		checksum = 0;
+		for(j=0; j<n-2; ++j)
+			checksum += cdata[j];
+		iso_checksum = cdata[j] + cdata[j+1]*256;
+		if(checksum != iso_checksum) {
+			LOG("checksum mismatch: [%d] len=%d, calculated = %x, checksum = %x\n",
+			    i, n, (int)checksum, (int)iso_checksum);
+			if(!ALLOW_CORRUPT) {
+				cam->workbuff->status = FRAME_ERROR;
+				continue;
+			}
+		}
+		n -= 2;
+
+		if(cam->workbuff->status != FRAME_READING) {
+			if((0xFF == cdata[0] && 0xD8 == cdata[1]) ||
+			   (0xD8 == cdata[0] && 0xFF == cdata[1] &&
+			    0 != cdata[2])) {
+				/* frame is skipped, but increment total
+				 * frame count anyway */
+				cam->frame_count++;
+			}
+			DBG("workbuff not reading, status=%d\n",
+			    cam->workbuff->status);
+			continue;
+		}
+
+		if (cam->frame_size < cam->workbuff->length + n) {
+			ERR("buffer overflow! length: %d, n: %d\n",
+			    cam->workbuff->length, n);
+			cam->workbuff->status = FRAME_ERROR;
+			if(cam->workbuff->length > cam->workbuff->max_length)
+				cam->workbuff->max_length =
+					cam->workbuff->length;
+			continue;
+		}
+
+		if (cam->workbuff->length == 0) {
+			int data_offset;
+			if ((0xD8 == cdata[0]) && (0xFF == cdata[1])) {
+				data_offset = 1;
+			} else if((0xFF == cdata[0]) && (0xD8 == cdata[1])
+				  && (0xFF == cdata[2])) {
+				data_offset = 2;
+			} else {
+				DBG("Ignoring packet, not beginning!\n");
+				continue;
+			}
+			DBG("Start of frame pattern found\n");
+			v4l2_get_timestamp(&cam->workbuff->timestamp);
+			cam->workbuff->seq = cam->frame_count++;
+			cam->workbuff->data[0] = 0xFF;
+			cam->workbuff->data[1] = 0xD8;
+			cam->workbuff->length = 2;
+			add_APPn(cam);
+			add_COM(cam);
+			memcpy(cam->workbuff->data+cam->workbuff->length,
+			       cdata+data_offset, n-data_offset);
+			cam->workbuff->length += n-data_offset;
+		} else if (cam->workbuff->length > 0) {
+			memcpy(cam->workbuff->data + cam->workbuff->length,
+			       cdata, n);
+			cam->workbuff->length += n;
+		}
+
+		if ((cam->workbuff->length >= 3) &&
+		    (cam->workbuff->data[cam->workbuff->length - 3] == 0xFF) &&
+		    (cam->workbuff->data[cam->workbuff->length - 2] == 0xD9) &&
+		    (cam->workbuff->data[cam->workbuff->length - 1] == 0xFF)) {
+			frame_ready = true;
+			cam->workbuff->data[cam->workbuff->length - 1] = 0;
+			cam->workbuff->length -= 1;
+		} else if ((cam->workbuff->length >= 2) &&
+		   (cam->workbuff->data[cam->workbuff->length - 2] == 0xFF) &&
+		   (cam->workbuff->data[cam->workbuff->length - 1] == 0xD9)) {
+			frame_ready = true;
+		}
+
+		if (frame_ready) {
+			DBG("Workbuff image size = %d\n",cam->workbuff->length);
+			process_frame(cam);
+
+			frame_ready = false;
+
+			if (waitqueue_active(&cam->wq_stream))
+				wake_up_interruptible(&cam->wq_stream);
+		}
+	}
+
+	if(cam->streaming) {
+		/* resubmit */
+		urb->dev = cam->dev;
+		if ((i = usb_submit_urb(urb, GFP_ATOMIC)) != 0)
+			ERR("%s: usb_submit_urb ret %d!\n", __func__, i);
+	}
+}
+
+/******************************************************************************
+ *
+ * configure_transfer_mode
+ *
+ *****************************************************************************/
+static int configure_transfer_mode(struct camera_data *cam, unsigned int alt)
+{
+	static unsigned char iso_regs[8][4] = {
+		{0x00, 0x00, 0x00, 0x00},
+		{0x00, 0x00, 0x00, 0x00},
+		{0xB9, 0x00, 0x00, 0x7E},
+		{0xB9, 0x00, 0x01, 0x7E},
+		{0xB9, 0x00, 0x02, 0x7E},
+		{0xB9, 0x00, 0x02, 0xFE},
+		{0xB9, 0x00, 0x03, 0x7E},
+		{0xB9, 0x00, 0x03, 0xFD}
+	};
+	struct cpia2_command cmd;
+	unsigned char reg;
+
+	if (!video_is_registered(&cam->vdev))
+		return -ENODEV;
+
+	/***
+	 * Write the isoc registers according to the alternate selected
+	 ***/
+	cmd.direction = TRANSFER_WRITE;
+	cmd.buffer.block_data[0] = iso_regs[alt][0];
+	cmd.buffer.block_data[1] = iso_regs[alt][1];
+	cmd.buffer.block_data[2] = iso_regs[alt][2];
+	cmd.buffer.block_data[3] = iso_regs[alt][3];
+	cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
+	cmd.start = CPIA2_VC_USB_ISOLIM;
+	cmd.reg_count = 4;
+	cpia2_send_command(cam, &cmd);
+
+	/***
+	 * Enable relevant streams before starting polling.
+	 * First read USB Stream Config Register.
+	 ***/
+	cmd.direction = TRANSFER_READ;
+	cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
+	cmd.start = CPIA2_VC_USB_STRM;
+	cmd.reg_count = 1;
+	cpia2_send_command(cam, &cmd);
+	reg = cmd.buffer.block_data[0];
+
+	/* Clear iso, bulk, and int */
+	reg &= ~(CPIA2_VC_USB_STRM_BLK_ENABLE |
+		 CPIA2_VC_USB_STRM_ISO_ENABLE |
+		 CPIA2_VC_USB_STRM_INT_ENABLE);
+
+	if (alt == USBIF_BULK) {
+		DBG("Enabling bulk xfer\n");
+		reg |= CPIA2_VC_USB_STRM_BLK_ENABLE;	/* Enable Bulk */
+		cam->xfer_mode = XFER_BULK;
+	} else if (alt >= USBIF_ISO_1) {
+		DBG("Enabling ISOC xfer\n");
+		reg |= CPIA2_VC_USB_STRM_ISO_ENABLE;
+		cam->xfer_mode = XFER_ISOC;
+	}
+
+	cmd.buffer.block_data[0] = reg;
+	cmd.direction = TRANSFER_WRITE;
+	cmd.start = CPIA2_VC_USB_STRM;
+	cmd.reg_count = 1;
+	cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
+	cpia2_send_command(cam, &cmd);
+
+	return 0;
+}
+
+/******************************************************************************
+ *
+ * cpia2_usb_change_streaming_alternate
+ *
+ *****************************************************************************/
+int cpia2_usb_change_streaming_alternate(struct camera_data *cam,
+					 unsigned int alt)
+{
+	int ret = 0;
+
+	if(alt < USBIF_ISO_1 || alt > USBIF_ISO_6)
+		return -EINVAL;
+
+	if(alt == cam->params.camera_state.stream_mode)
+		return 0;
+
+	cpia2_usb_stream_pause(cam);
+
+	configure_transfer_mode(cam, alt);
+
+	cam->params.camera_state.stream_mode = alt;
+
+	/* Reset the camera to prevent image quality degradation */
+	cpia2_reset_camera(cam);
+
+	cpia2_usb_stream_resume(cam);
+
+	return ret;
+}
+
+/******************************************************************************
+ *
+ * set_alternate
+ *
+ *****************************************************************************/
+static int set_alternate(struct camera_data *cam, unsigned int alt)
+{
+	int ret = 0;
+
+	if(alt == cam->cur_alt)
+		return 0;
+
+	if (cam->cur_alt != USBIF_CMDONLY) {
+		DBG("Changing from alt %d to %d\n", cam->cur_alt, USBIF_CMDONLY);
+		ret = usb_set_interface(cam->dev, cam->iface, USBIF_CMDONLY);
+		if (ret != 0)
+			return ret;
+	}
+	if (alt != USBIF_CMDONLY) {
+		DBG("Changing from alt %d to %d\n", USBIF_CMDONLY, alt);
+		ret = usb_set_interface(cam->dev, cam->iface, alt);
+		if (ret != 0)
+			return ret;
+	}
+
+	cam->old_alt = cam->cur_alt;
+	cam->cur_alt = alt;
+
+	return ret;
+}
+
+/******************************************************************************
+ *
+ * free_sbufs
+ *
+ * Free all cam->sbuf[]. All non-NULL .data and .urb members that are non-NULL
+ * are assumed to be allocated. Non-NULL .urb members are also assumed to be
+ * submitted (and must therefore be killed before they are freed).
+ *****************************************************************************/
+static void free_sbufs(struct camera_data *cam)
+{
+	int i;
+
+	for (i = 0; i < NUM_SBUF; i++) {
+		if(cam->sbuf[i].urb) {
+			usb_kill_urb(cam->sbuf[i].urb);
+			usb_free_urb(cam->sbuf[i].urb);
+			cam->sbuf[i].urb = NULL;
+		}
+		if(cam->sbuf[i].data) {
+			kfree(cam->sbuf[i].data);
+			cam->sbuf[i].data = NULL;
+		}
+	}
+}
+
+/*******
+* Convenience functions
+*******/
+/****************************************************************************
+ *
+ *  write_packet
+ *
+ ***************************************************************************/
+static int write_packet(struct usb_device *udev,
+			u8 request, u8 * registers, u16 start, size_t size)
+{
+	if (!registers || size <= 0)
+		return -EINVAL;
+
+	return usb_control_msg(udev,
+			       usb_sndctrlpipe(udev, 0),
+			       request,
+			       USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			       start,	/* value */
+			       0,	/* index */
+			       registers,	/* buffer */
+			       size,
+			       HZ);
+}
+
+/****************************************************************************
+ *
+ *  read_packet
+ *
+ ***************************************************************************/
+static int read_packet(struct usb_device *udev,
+		       u8 request, u8 * registers, u16 start, size_t size)
+{
+	if (!registers || size <= 0)
+		return -EINVAL;
+
+	return usb_control_msg(udev,
+			       usb_rcvctrlpipe(udev, 0),
+			       request,
+			       USB_DIR_IN|USB_TYPE_VENDOR|USB_RECIP_DEVICE,
+			       start,	/* value */
+			       0,	/* index */
+			       registers,	/* buffer */
+			       size,
+			       HZ);
+}
+
+/******************************************************************************
+ *
+ *  cpia2_usb_transfer_cmd
+ *
+ *****************************************************************************/
+int cpia2_usb_transfer_cmd(struct camera_data *cam,
+			   void *registers,
+			   u8 request, u8 start, u8 count, u8 direction)
+{
+	int err = 0;
+	struct usb_device *udev = cam->dev;
+
+	if (!udev) {
+		ERR("%s: Internal driver error: udev is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	if (!registers) {
+		ERR("%s: Internal driver error: register array is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	if (direction == TRANSFER_READ) {
+		err = read_packet(udev, request, (u8 *)registers, start, count);
+		if (err > 0)
+			err = 0;
+	} else if (direction == TRANSFER_WRITE) {
+		err =write_packet(udev, request, (u8 *)registers, start, count);
+		if (err < 0) {
+			LOG("Control message failed, err val = %d\n", err);
+			LOG("Message: request = 0x%0X, start = 0x%0X\n",
+			    request, start);
+			LOG("Message: count = %d, register[0] = 0x%0X\n",
+			    count, ((unsigned char *) registers)[0]);
+		} else
+			err=0;
+	} else {
+		LOG("Unexpected first byte of direction: %d\n",
+		       direction);
+		return -EINVAL;
+	}
+
+	if(err != 0)
+		LOG("Unexpected error: %d\n", err);
+	return err;
+}
+
+
+/******************************************************************************
+ *
+ *  submit_urbs
+ *
+ *****************************************************************************/
+static int submit_urbs(struct camera_data *cam)
+{
+	struct urb *urb;
+	int fx, err, i, j;
+
+	for(i=0; i<NUM_SBUF; ++i) {
+		if (cam->sbuf[i].data)
+			continue;
+		cam->sbuf[i].data =
+		    kmalloc(FRAMES_PER_DESC * FRAME_SIZE_PER_DESC, GFP_KERNEL);
+		if (!cam->sbuf[i].data) {
+			while (--i >= 0) {
+				kfree(cam->sbuf[i].data);
+				cam->sbuf[i].data = NULL;
+			}
+			return -ENOMEM;
+		}
+	}
+
+	/* We double buffer the Isoc lists, and also know the polling
+	 * interval is every frame (1 == (1 << (bInterval -1))).
+	 */
+	for(i=0; i<NUM_SBUF; ++i) {
+		if(cam->sbuf[i].urb) {
+			continue;
+		}
+		urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
+		if (!urb) {
+			ERR("%s: usb_alloc_urb error!\n", __func__);
+			for (j = 0; j < i; j++)
+				usb_free_urb(cam->sbuf[j].urb);
+			return -ENOMEM;
+		}
+
+		cam->sbuf[i].urb = urb;
+		urb->dev = cam->dev;
+		urb->context = cam;
+		urb->pipe = usb_rcvisocpipe(cam->dev, 1 /*ISOC endpoint*/);
+		urb->transfer_flags = URB_ISO_ASAP;
+		urb->transfer_buffer = cam->sbuf[i].data;
+		urb->complete = cpia2_usb_complete;
+		urb->number_of_packets = FRAMES_PER_DESC;
+		urb->interval = 1;
+		urb->transfer_buffer_length =
+			FRAME_SIZE_PER_DESC * FRAMES_PER_DESC;
+
+		for (fx = 0; fx < FRAMES_PER_DESC; fx++) {
+			urb->iso_frame_desc[fx].offset =
+				FRAME_SIZE_PER_DESC * fx;
+			urb->iso_frame_desc[fx].length = FRAME_SIZE_PER_DESC;
+		}
+	}
+
+
+	/* Queue the ISO urbs, and resubmit in the completion handler */
+	for(i=0; i<NUM_SBUF; ++i) {
+		err = usb_submit_urb(cam->sbuf[i].urb, GFP_KERNEL);
+		if (err) {
+			ERR("usb_submit_urb[%d]() = %d\n", i, err);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+/******************************************************************************
+ *
+ *  cpia2_usb_stream_start
+ *
+ *****************************************************************************/
+int cpia2_usb_stream_start(struct camera_data *cam, unsigned int alternate)
+{
+	int ret;
+	int old_alt;
+
+	if(cam->streaming)
+		return 0;
+
+	if (cam->flush) {
+		int i;
+		DBG("Flushing buffers\n");
+		for(i=0; i<cam->num_frames; ++i) {
+			cam->buffers[i].status = FRAME_EMPTY;
+			cam->buffers[i].length = 0;
+		}
+		cam->curbuff = &cam->buffers[0];
+		cam->workbuff = cam->curbuff->next;
+		cam->flush = false;
+	}
+
+	old_alt = cam->params.camera_state.stream_mode;
+	cam->params.camera_state.stream_mode = 0;
+	ret = cpia2_usb_change_streaming_alternate(cam, alternate);
+	if (ret < 0) {
+		int ret2;
+		ERR("cpia2_usb_change_streaming_alternate() = %d!\n", ret);
+		cam->params.camera_state.stream_mode = old_alt;
+		ret2 = set_alternate(cam, USBIF_CMDONLY);
+		if (ret2 < 0) {
+			ERR("cpia2_usb_change_streaming_alternate(%d) =%d has already "
+			    "failed. Then tried to call "
+			    "set_alternate(USBIF_CMDONLY) = %d.\n",
+			    alternate, ret, ret2);
+		}
+	} else {
+		cam->frame_count = 0;
+		cam->streaming = 1;
+		ret = cpia2_usb_stream_resume(cam);
+	}
+	return ret;
+}
+
+/******************************************************************************
+ *
+ *  cpia2_usb_stream_pause
+ *
+ *****************************************************************************/
+int cpia2_usb_stream_pause(struct camera_data *cam)
+{
+	int ret = 0;
+	if(cam->streaming) {
+		free_sbufs(cam);
+		ret = set_alternate(cam, USBIF_CMDONLY);
+	}
+	return ret;
+}
+
+/******************************************************************************
+ *
+ *  cpia2_usb_stream_resume
+ *
+ *****************************************************************************/
+int cpia2_usb_stream_resume(struct camera_data *cam)
+{
+	int ret = 0;
+	if(cam->streaming) {
+		cam->first_image_seen = 0;
+		ret = set_alternate(cam, cam->params.camera_state.stream_mode);
+		if(ret == 0) {
+			/* for some reason the user effects need to be set
+			   again when starting streaming. */
+			cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
+					cam->params.vp_params.user_effects);
+			ret = submit_urbs(cam);
+		}
+	}
+	return ret;
+}
+
+/******************************************************************************
+ *
+ *  cpia2_usb_stream_stop
+ *
+ *****************************************************************************/
+int cpia2_usb_stream_stop(struct camera_data *cam)
+{
+	int ret;
+
+	ret = cpia2_usb_stream_pause(cam);
+	cam->streaming = 0;
+	configure_transfer_mode(cam, 0);
+	return ret;
+}
+
+/******************************************************************************
+ *
+ *  cpia2_usb_probe
+ *
+ *  Probe and initialize.
+ *****************************************************************************/
+static int cpia2_usb_probe(struct usb_interface *intf,
+			   const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_interface_descriptor *interface;
+	struct camera_data *cam;
+	int ret;
+
+	/* A multi-config CPiA2 camera? */
+	if (udev->descriptor.bNumConfigurations != 1)
+		return -ENODEV;
+	interface = &intf->cur_altsetting->desc;
+
+	/* If we get to this point, we found a CPiA2 camera */
+	LOG("CPiA2 USB camera found\n");
+
+	cam = cpia2_init_camera_struct(intf);
+	if (cam == NULL)
+		return -ENOMEM;
+
+	cam->dev = udev;
+	cam->iface = interface->bInterfaceNumber;
+
+	ret = set_alternate(cam, USBIF_CMDONLY);
+	if (ret < 0) {
+		ERR("%s: usb_set_interface error (ret = %d)\n", __func__, ret);
+		kfree(cam);
+		return ret;
+	}
+
+
+	if((ret = cpia2_init_camera(cam)) < 0) {
+		ERR("%s: failed to initialize cpia2 camera (ret = %d)\n", __func__, ret);
+		kfree(cam);
+		return ret;
+	}
+	LOG("  CPiA Version: %d.%02d (%d.%d)\n",
+	       cam->params.version.firmware_revision_hi,
+	       cam->params.version.firmware_revision_lo,
+	       cam->params.version.asic_id,
+	       cam->params.version.asic_rev);
+	LOG("  CPiA PnP-ID: %04x:%04x:%04x\n",
+	       cam->params.pnp_id.vendor,
+	       cam->params.pnp_id.product,
+	       cam->params.pnp_id.device_revision);
+	LOG("  SensorID: %d.(version %d)\n",
+	       cam->params.version.sensor_flags,
+	       cam->params.version.sensor_rev);
+
+	usb_set_intfdata(intf, cam);
+
+	ret = cpia2_register_camera(cam);
+	if (ret < 0) {
+		ERR("%s: Failed to register cpia2 camera (ret = %d)\n", __func__, ret);
+		kfree(cam);
+		return ret;
+	}
+
+	return 0;
+}
+
+/******************************************************************************
+ *
+ *  cpia2_disconnect
+ *
+ *****************************************************************************/
+static void cpia2_usb_disconnect(struct usb_interface *intf)
+{
+	struct camera_data *cam = usb_get_intfdata(intf);
+	usb_set_intfdata(intf, NULL);
+
+	DBG("Stopping stream\n");
+	cpia2_usb_stream_stop(cam);
+
+	mutex_lock(&cam->v4l2_lock);
+	DBG("Unregistering camera\n");
+	cpia2_unregister_camera(cam);
+	v4l2_device_disconnect(&cam->v4l2_dev);
+	mutex_unlock(&cam->v4l2_lock);
+	v4l2_device_put(&cam->v4l2_dev);
+
+	if(cam->buffers) {
+		DBG("Wakeup waiting processes\n");
+		cam->curbuff->status = FRAME_READY;
+		cam->curbuff->length = 0;
+		if (waitqueue_active(&cam->wq_stream))
+			wake_up_interruptible(&cam->wq_stream);
+	}
+
+	DBG("Releasing interface\n");
+	usb_driver_release_interface(&cpia2_driver, intf);
+
+	LOG("CPiA2 camera disconnected.\n");
+}
+
+static int cpia2_usb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct camera_data *cam = usb_get_intfdata(intf);
+
+	mutex_lock(&cam->v4l2_lock);
+	if (cam->streaming) {
+		cpia2_usb_stream_stop(cam);
+		cam->streaming = 1;
+	}
+	mutex_unlock(&cam->v4l2_lock);
+
+	dev_info(&intf->dev, "going into suspend..\n");
+	return 0;
+}
+
+/* Resume device - start device. */
+static int cpia2_usb_resume(struct usb_interface *intf)
+{
+	struct camera_data *cam = usb_get_intfdata(intf);
+
+	mutex_lock(&cam->v4l2_lock);
+	v4l2_ctrl_handler_setup(&cam->hdl);
+	if (cam->streaming) {
+		cam->streaming = 0;
+		cpia2_usb_stream_start(cam,
+				cam->params.camera_state.stream_mode);
+	}
+	mutex_unlock(&cam->v4l2_lock);
+
+	dev_info(&intf->dev, "coming out of suspend..\n");
+	return 0;
+}
+
+/******************************************************************************
+ *
+ *  usb_cpia2_init
+ *
+ *****************************************************************************/
+int cpia2_usb_init(void)
+{
+	return usb_register(&cpia2_driver);
+}
+
+/******************************************************************************
+ *
+ *  usb_cpia_cleanup
+ *
+ *****************************************************************************/
+void cpia2_usb_cleanup(void)
+{
+	schedule_timeout(2 * HZ);
+	usb_deregister(&cpia2_driver);
+}

drivers/media/usb/cx231xx/Kconfig

@@ -0,0 +1,55 @@
+config VIDEO_CX231XX
+	tristate "Conexant cx231xx USB video capture support"
+	depends on VIDEO_DEV && I2C
+	select VIDEO_TUNER
+	select VIDEO_TVEEPROM
+	depends on RC_CORE
+	select VIDEOBUF_VMALLOC
+	select VIDEO_CX25840
+	select VIDEO_CX2341X
+
+	---help---
+	  This is a video4linux driver for Conexant 231xx USB based TV cards.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called cx231xx
+
+config VIDEO_CX231XX_RC
+	bool "Conexant cx231xx Remote Controller additional support"
+	depends on RC_CORE
+	depends on VIDEO_CX231XX
+	default y
+	---help---
+	  cx231xx hardware has a builtin RX/TX support. However, a few
+	  designs opted to not use it, but, instead, some other hardware.
+	  This module enables the usage of those other hardware, like the
+	  ones used with ISDB-T boards.
+
+	  On most cases, all you need for IR is mceusb module.
+
+config VIDEO_CX231XX_ALSA
+	tristate "Conexant Cx231xx ALSA audio module"
+	depends on VIDEO_CX231XX && SND
+	select SND_PCM
+
+	---help---
+	  This is an ALSA driver for Cx231xx USB based TV cards.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called cx231xx-alsa
+
+config VIDEO_CX231XX_DVB
+	tristate "DVB/ATSC Support for Cx231xx based TV cards"
+	depends on VIDEO_CX231XX && DVB_CORE
+	select VIDEOBUF_DVB
+	select MEDIA_TUNER_XC5000 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_TDA18271 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_MB86A20S if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_LGDT3305 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_TDA18271C2DD if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_SI2165 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_SI2157 if MEDIA_SUBDRV_AUTOSELECT
+
+	---help---
+	  This adds support for DVB cards based on the
+	  Conexant cx231xx chips.

drivers/media/usb/cx231xx/Makefile

@@ -0,0 +1,15 @@
+cx231xx-y += cx231xx-video.o cx231xx-i2c.o cx231xx-cards.o cx231xx-core.o
+cx231xx-y += cx231xx-avcore.o cx231xx-417.o cx231xx-pcb-cfg.o cx231xx-vbi.o
+cx231xx-$(CONFIG_VIDEO_CX231XX_RC) += cx231xx-input.o
+
+cx231xx-alsa-objs := cx231xx-audio.o
+
+obj-$(CONFIG_VIDEO_CX231XX) += cx231xx.o
+obj-$(CONFIG_VIDEO_CX231XX_ALSA) += cx231xx-alsa.o
+obj-$(CONFIG_VIDEO_CX231XX_DVB) += cx231xx-dvb.o
+
+ccflags-y += -Idrivers/media/i2c
+ccflags-y += -Idrivers/media/tuners
+ccflags-y += -Idrivers/media/dvb-core
+ccflags-y += -Idrivers/media/dvb-frontends
+ccflags-y += -Idrivers/media/usb/dvb-usb

drivers/media/usb/cx231xx/cx231xx-audio.c

@@ -0,0 +1,775 @@
+/*
+ *  Conexant Cx231xx audio extension
+ *
+ *  Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+ *       Based on em28xx driver
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/usb.h>
+#include <linux/init.h>
+#include <linux/sound.h>
+#include <linux/spinlock.h>
+#include <linux/soundcard.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/proc_fs.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/info.h>
+#include <sound/initval.h>
+#include <sound/control.h>
+#include <media/v4l2-common.h>
+#include "cx231xx.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "activates debug info");
+
+#define dprintk(fmt, arg...) do {					\
+		if (debug)						\
+			printk(KERN_INFO "cx231xx-audio %s: " fmt,	\
+				__func__, ##arg); 			\
+	} while (0)
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+
+static int cx231xx_isoc_audio_deinit(struct cx231xx *dev)
+{
+	int i;
+
+	dprintk("Stopping isoc\n");
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		if (dev->adev.urb[i]) {
+			if (!irqs_disabled())
+				usb_kill_urb(dev->adev.urb[i]);
+			else
+				usb_unlink_urb(dev->adev.urb[i]);
+
+			usb_free_urb(dev->adev.urb[i]);
+			dev->adev.urb[i] = NULL;
+
+			kfree(dev->adev.transfer_buffer[i]);
+			dev->adev.transfer_buffer[i] = NULL;
+		}
+	}
+
+	return 0;
+}
+
+static int cx231xx_bulk_audio_deinit(struct cx231xx *dev)
+{
+	int i;
+
+	dprintk("Stopping bulk\n");
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		if (dev->adev.urb[i]) {
+			if (!irqs_disabled())
+				usb_kill_urb(dev->adev.urb[i]);
+			else
+				usb_unlink_urb(dev->adev.urb[i]);
+
+			usb_free_urb(dev->adev.urb[i]);
+			dev->adev.urb[i] = NULL;
+
+			kfree(dev->adev.transfer_buffer[i]);
+			dev->adev.transfer_buffer[i] = NULL;
+		}
+	}
+
+	return 0;
+}
+
+static void cx231xx_audio_isocirq(struct urb *urb)
+{
+	struct cx231xx *dev = urb->context;
+	int i;
+	unsigned int oldptr;
+	int period_elapsed = 0;
+	int status;
+	unsigned char *cp;
+	unsigned int stride;
+	struct snd_pcm_substream *substream;
+	struct snd_pcm_runtime *runtime;
+
+	if (dev->state & DEV_DISCONNECTED)
+		return;
+
+	switch (urb->status) {
+	case 0:		/* success */
+	case -ETIMEDOUT:	/* NAK */
+		break;
+	case -ECONNRESET:	/* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:		/* error */
+		dprintk("urb completition error %d.\n", urb->status);
+		break;
+	}
+
+	if (atomic_read(&dev->stream_started) == 0)
+		return;
+
+	if (dev->adev.capture_pcm_substream) {
+		substream = dev->adev.capture_pcm_substream;
+		runtime = substream->runtime;
+		stride = runtime->frame_bits >> 3;
+
+		for (i = 0; i < urb->number_of_packets; i++) {
+			int length = urb->iso_frame_desc[i].actual_length /
+				     stride;
+			cp = (unsigned char *)urb->transfer_buffer +
+					      urb->iso_frame_desc[i].offset;
+
+			if (!length)
+				continue;
+
+			oldptr = dev->adev.hwptr_done_capture;
+			if (oldptr + length >= runtime->buffer_size) {
+				unsigned int cnt;
+
+				cnt = runtime->buffer_size - oldptr;
+				memcpy(runtime->dma_area + oldptr * stride, cp,
+				       cnt * stride);
+				memcpy(runtime->dma_area, cp + cnt * stride,
+				       length * stride - cnt * stride);
+			} else {
+				memcpy(runtime->dma_area + oldptr * stride, cp,
+				       length * stride);
+			}
+
+			snd_pcm_stream_lock(substream);
+
+			dev->adev.hwptr_done_capture += length;
+			if (dev->adev.hwptr_done_capture >=
+						runtime->buffer_size)
+				dev->adev.hwptr_done_capture -=
+						runtime->buffer_size;
+
+			dev->adev.capture_transfer_done += length;
+			if (dev->adev.capture_transfer_done >=
+				runtime->period_size) {
+				dev->adev.capture_transfer_done -=
+						runtime->period_size;
+				period_elapsed = 1;
+			}
+			snd_pcm_stream_unlock(substream);
+		}
+		if (period_elapsed)
+			snd_pcm_period_elapsed(substream);
+	}
+	urb->status = 0;
+
+	status = usb_submit_urb(urb, GFP_ATOMIC);
+	if (status < 0) {
+		cx231xx_errdev("resubmit of audio urb failed (error=%i)\n",
+			       status);
+	}
+	return;
+}
+
+static void cx231xx_audio_bulkirq(struct urb *urb)
+{
+	struct cx231xx *dev = urb->context;
+	unsigned int oldptr;
+	int period_elapsed = 0;
+	int status;
+	unsigned char *cp;
+	unsigned int stride;
+	struct snd_pcm_substream *substream;
+	struct snd_pcm_runtime *runtime;
+
+	if (dev->state & DEV_DISCONNECTED)
+		return;
+
+	switch (urb->status) {
+	case 0:		/* success */
+	case -ETIMEDOUT:	/* NAK */
+		break;
+	case -ECONNRESET:	/* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:		/* error */
+		dprintk("urb completition error %d.\n", urb->status);
+		break;
+	}
+
+	if (atomic_read(&dev->stream_started) == 0)
+		return;
+
+	if (dev->adev.capture_pcm_substream) {
+		substream = dev->adev.capture_pcm_substream;
+		runtime = substream->runtime;
+		stride = runtime->frame_bits >> 3;
+
+		if (1) {
+			int length = urb->actual_length /
+				     stride;
+			cp = (unsigned char *)urb->transfer_buffer;
+
+			oldptr = dev->adev.hwptr_done_capture;
+			if (oldptr + length >= runtime->buffer_size) {
+				unsigned int cnt;
+
+				cnt = runtime->buffer_size - oldptr;
+				memcpy(runtime->dma_area + oldptr * stride, cp,
+				       cnt * stride);
+				memcpy(runtime->dma_area, cp + cnt * stride,
+				       length * stride - cnt * stride);
+			} else {
+				memcpy(runtime->dma_area + oldptr * stride, cp,
+				       length * stride);
+			}
+
+			snd_pcm_stream_lock(substream);
+
+			dev->adev.hwptr_done_capture += length;
+			if (dev->adev.hwptr_done_capture >=
+						runtime->buffer_size)
+				dev->adev.hwptr_done_capture -=
+						runtime->buffer_size;
+
+			dev->adev.capture_transfer_done += length;
+			if (dev->adev.capture_transfer_done >=
+				runtime->period_size) {
+				dev->adev.capture_transfer_done -=
+						runtime->period_size;
+				period_elapsed = 1;
+			}
+			snd_pcm_stream_unlock(substream);
+		}
+		if (period_elapsed)
+			snd_pcm_period_elapsed(substream);
+	}
+	urb->status = 0;
+
+	status = usb_submit_urb(urb, GFP_ATOMIC);
+	if (status < 0) {
+		cx231xx_errdev("resubmit of audio urb failed (error=%i)\n",
+			       status);
+	}
+	return;
+}
+
+static int cx231xx_init_audio_isoc(struct cx231xx *dev)
+{
+	int i, errCode;
+	int sb_size;
+
+	cx231xx_info("%s: Starting ISO AUDIO transfers\n", __func__);
+
+	if (dev->state & DEV_DISCONNECTED)
+		return -ENODEV;
+
+	sb_size = CX231XX_ISO_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		struct urb *urb;
+		int j, k;
+
+		dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC);
+		if (!dev->adev.transfer_buffer[i])
+			return -ENOMEM;
+
+		memset(dev->adev.transfer_buffer[i], 0x80, sb_size);
+		urb = usb_alloc_urb(CX231XX_ISO_NUM_AUDIO_PACKETS, GFP_ATOMIC);
+		if (!urb) {
+			cx231xx_errdev("usb_alloc_urb failed!\n");
+			for (j = 0; j < i; j++) {
+				usb_free_urb(dev->adev.urb[j]);
+				kfree(dev->adev.transfer_buffer[j]);
+			}
+			return -ENOMEM;
+		}
+
+		urb->dev = dev->udev;
+		urb->context = dev;
+		urb->pipe = usb_rcvisocpipe(dev->udev,
+						dev->adev.end_point_addr);
+		urb->transfer_flags = URB_ISO_ASAP;
+		urb->transfer_buffer = dev->adev.transfer_buffer[i];
+		urb->interval = 1;
+		urb->complete = cx231xx_audio_isocirq;
+		urb->number_of_packets = CX231XX_ISO_NUM_AUDIO_PACKETS;
+		urb->transfer_buffer_length = sb_size;
+
+		for (j = k = 0; j < CX231XX_ISO_NUM_AUDIO_PACKETS;
+			j++, k += dev->adev.max_pkt_size) {
+			urb->iso_frame_desc[j].offset = k;
+			urb->iso_frame_desc[j].length = dev->adev.max_pkt_size;
+		}
+		dev->adev.urb[i] = urb;
+	}
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
+		if (errCode < 0) {
+			cx231xx_isoc_audio_deinit(dev);
+			return errCode;
+		}
+	}
+
+	return errCode;
+}
+
+static int cx231xx_init_audio_bulk(struct cx231xx *dev)
+{
+	int i, errCode;
+	int sb_size;
+
+	cx231xx_info("%s: Starting BULK AUDIO transfers\n", __func__);
+
+	if (dev->state & DEV_DISCONNECTED)
+		return -ENODEV;
+
+	sb_size = CX231XX_NUM_AUDIO_PACKETS * dev->adev.max_pkt_size;
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		struct urb *urb;
+		int j;
+
+		dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC);
+		if (!dev->adev.transfer_buffer[i])
+			return -ENOMEM;
+
+		memset(dev->adev.transfer_buffer[i], 0x80, sb_size);
+		urb = usb_alloc_urb(CX231XX_NUM_AUDIO_PACKETS, GFP_ATOMIC);
+		if (!urb) {
+			cx231xx_errdev("usb_alloc_urb failed!\n");
+			for (j = 0; j < i; j++) {
+				usb_free_urb(dev->adev.urb[j]);
+				kfree(dev->adev.transfer_buffer[j]);
+			}
+			return -ENOMEM;
+		}
+
+		urb->dev = dev->udev;
+		urb->context = dev;
+		urb->pipe = usb_rcvbulkpipe(dev->udev,
+						dev->adev.end_point_addr);
+		urb->transfer_flags = 0;
+		urb->transfer_buffer = dev->adev.transfer_buffer[i];
+		urb->complete = cx231xx_audio_bulkirq;
+		urb->transfer_buffer_length = sb_size;
+
+		dev->adev.urb[i] = urb;
+
+	}
+
+	for (i = 0; i < CX231XX_AUDIO_BUFS; i++) {
+		errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
+		if (errCode < 0) {
+			cx231xx_bulk_audio_deinit(dev);
+			return errCode;
+		}
+	}
+
+	return errCode;
+}
+
+static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs,
+					size_t size)
+{
+	struct snd_pcm_runtime *runtime = subs->runtime;
+
+	dprintk("Allocating vbuffer\n");
+	if (runtime->dma_area) {
+		if (runtime->dma_bytes > size)
+			return 0;
+
+		vfree(runtime->dma_area);
+	}
+	runtime->dma_area = vmalloc(size);
+	if (!runtime->dma_area)
+		return -ENOMEM;
+
+	runtime->dma_bytes = size;
+
+	return 0;
+}
+
+static struct snd_pcm_hardware snd_cx231xx_hw_capture = {
+	.info = SNDRV_PCM_INFO_BLOCK_TRANSFER 	|
+	    SNDRV_PCM_INFO_MMAP 		|
+	    SNDRV_PCM_INFO_INTERLEAVED 		|
+	    SNDRV_PCM_INFO_MMAP_VALID,
+
+	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+
+	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_KNOT,
+
+	.rate_min = 48000,
+	.rate_max = 48000,
+	.channels_min = 2,
+	.channels_max = 2,
+	.buffer_bytes_max = 62720 * 8,	/* just about the value in usbaudio.c */
+	.period_bytes_min = 64,		/* 12544/2, */
+	.period_bytes_max = 12544,
+	.periods_min = 2,
+	.periods_max = 98,		/* 12544, */
+};
+
+static int snd_cx231xx_capture_open(struct snd_pcm_substream *substream)
+{
+	struct cx231xx *dev = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int ret = 0;
+
+	dprintk("opening device and trying to acquire exclusive lock\n");
+
+	if (!dev) {
+		cx231xx_errdev("BUG: cx231xx can't find device struct."
+			       " Can't proceed with open\n");
+		return -ENODEV;
+	}
+
+	if (dev->state & DEV_DISCONNECTED) {
+		cx231xx_errdev("Can't open. the device was removed.\n");
+		return -ENODEV;
+	}
+
+	/* set alternate setting for audio interface */
+	/* 1 - 48000 samples per sec */
+	mutex_lock(&dev->lock);
+	if (dev->USE_ISO)
+		ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 1);
+	else
+		ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0);
+	mutex_unlock(&dev->lock);
+	if (ret < 0) {
+		cx231xx_errdev("failed to set alternate setting !\n");
+
+		return ret;
+	}
+
+	runtime->hw = snd_cx231xx_hw_capture;
+
+	mutex_lock(&dev->lock);
+	/* inform hardware to start streaming */
+	ret = cx231xx_capture_start(dev, 1, Audio);
+
+	dev->adev.users++;
+	mutex_unlock(&dev->lock);
+
+	snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+	dev->adev.capture_pcm_substream = substream;
+	runtime->private_data = dev;
+
+	return 0;
+}
+
+static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream)
+{
+	int ret;
+	struct cx231xx *dev = snd_pcm_substream_chip(substream);
+
+	dprintk("closing device\n");
+
+	/* inform hardware to stop streaming */
+	mutex_lock(&dev->lock);
+	ret = cx231xx_capture_start(dev, 0, Audio);
+
+	/* set alternate setting for audio interface */
+	/* 1 - 48000 samples per sec */
+	ret = cx231xx_set_alt_setting(dev, INDEX_AUDIO, 0);
+	if (ret < 0) {
+		cx231xx_errdev("failed to set alternate setting !\n");
+
+		mutex_unlock(&dev->lock);
+		return ret;
+	}
+
+	dev->adev.users--;
+	mutex_unlock(&dev->lock);
+
+	if (dev->adev.users == 0 && dev->adev.shutdown == 1) {
+		dprintk("audio users: %d\n", dev->adev.users);
+		dprintk("disabling audio stream!\n");
+		dev->adev.shutdown = 0;
+		dprintk("released lock\n");
+		if (atomic_read(&dev->stream_started) > 0) {
+			atomic_set(&dev->stream_started, 0);
+			schedule_work(&dev->wq_trigger);
+		}
+	}
+	return 0;
+}
+
+static int snd_cx231xx_hw_capture_params(struct snd_pcm_substream *substream,
+					 struct snd_pcm_hw_params *hw_params)
+{
+	int ret;
+
+	dprintk("Setting capture parameters\n");
+
+	ret = snd_pcm_alloc_vmalloc_buffer(substream,
+					   params_buffer_bytes(hw_params));
+#if 0
+	/* TODO: set up cx231xx audio chip to deliver the correct audio format,
+	   current default is 48000hz multiplexed => 96000hz mono
+	   which shouldn't matter since analogue TV only supports mono */
+	unsigned int channels, rate, format;
+
+	format = params_format(hw_params);
+	rate = params_rate(hw_params);
+	channels = params_channels(hw_params);
+#endif
+
+	return ret;
+}
+
+static int snd_cx231xx_hw_capture_free(struct snd_pcm_substream *substream)
+{
+	struct cx231xx *dev = snd_pcm_substream_chip(substream);
+
+	dprintk("Stop capture, if needed\n");
+
+	if (atomic_read(&dev->stream_started) > 0) {
+		atomic_set(&dev->stream_started, 0);
+		schedule_work(&dev->wq_trigger);
+	}
+
+	return 0;
+}
+
+static int snd_cx231xx_prepare(struct snd_pcm_substream *substream)
+{
+	struct cx231xx *dev = snd_pcm_substream_chip(substream);
+
+	dev->adev.hwptr_done_capture = 0;
+	dev->adev.capture_transfer_done = 0;
+
+	return 0;
+}
+
+static void audio_trigger(struct work_struct *work)
+{
+	struct cx231xx *dev = container_of(work, struct cx231xx, wq_trigger);
+
+	if (atomic_read(&dev->stream_started)) {
+		dprintk("starting capture");
+		if (is_fw_load(dev) == 0)
+			cx25840_call(dev, core, load_fw);
+		if (dev->USE_ISO)
+			cx231xx_init_audio_isoc(dev);
+		else
+			cx231xx_init_audio_bulk(dev);
+	} else {
+		dprintk("stopping capture");
+		cx231xx_isoc_audio_deinit(dev);
+	}
+}
+
+static int snd_cx231xx_capture_trigger(struct snd_pcm_substream *substream,
+				       int cmd)
+{
+	struct cx231xx *dev = snd_pcm_substream_chip(substream);
+	int retval = 0;
+
+	if (dev->state & DEV_DISCONNECTED)
+		return -ENODEV;
+
+	spin_lock(&dev->adev.slock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		atomic_set(&dev->stream_started, 1);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		atomic_set(&dev->stream_started, 0);
+		break;
+	default:
+		retval = -EINVAL;
+		break;
+	}
+	spin_unlock(&dev->adev.slock);
+
+	schedule_work(&dev->wq_trigger);
+
+	return retval;
+}
+
+static snd_pcm_uframes_t snd_cx231xx_capture_pointer(struct snd_pcm_substream
+						     *substream)
+{
+	struct cx231xx *dev;
+	unsigned long flags;
+	snd_pcm_uframes_t hwptr_done;
+
+	dev = snd_pcm_substream_chip(substream);
+
+	spin_lock_irqsave(&dev->adev.slock, flags);
+	hwptr_done = dev->adev.hwptr_done_capture;
+	spin_unlock_irqrestore(&dev->adev.slock, flags);
+
+	return hwptr_done;
+}
+
+static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
+					     unsigned long offset)
+{
+	void *pageptr = subs->runtime->dma_area + offset;
+
+	return vmalloc_to_page(pageptr);
+}
+
+static struct snd_pcm_ops snd_cx231xx_pcm_capture = {
+	.open = snd_cx231xx_capture_open,
+	.close = snd_cx231xx_pcm_close,
+	.ioctl = snd_pcm_lib_ioctl,
+	.hw_params = snd_cx231xx_hw_capture_params,
+	.hw_free = snd_cx231xx_hw_capture_free,
+	.prepare = snd_cx231xx_prepare,
+	.trigger = snd_cx231xx_capture_trigger,
+	.pointer = snd_cx231xx_capture_pointer,
+	.page = snd_pcm_get_vmalloc_page,
+};
+
+static int cx231xx_audio_init(struct cx231xx *dev)
+{
+	struct cx231xx_audio *adev = &dev->adev;
+	struct snd_pcm *pcm;
+	struct snd_card *card;
+	static int devnr;
+	int err;
+	struct usb_interface *uif;
+	int i, isoc_pipe = 0;
+
+	if (dev->has_alsa_audio != 1) {
+		/* This device does not support the extension (in this case
+		   the device is expecting the snd-usb-audio module or
+		   doesn't have analog audio support at all) */
+		return 0;
+	}
+
+	cx231xx_info("cx231xx-audio.c: probing for cx231xx "
+		     "non standard usbaudio\n");
+
+	err = snd_card_new(&dev->udev->dev, index[devnr], "Cx231xx Audio",
+			   THIS_MODULE, 0, &card);
+	if (err < 0)
+		return err;
+
+	spin_lock_init(&adev->slock);
+	err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm);
+	if (err < 0) {
+		snd_card_free(card);
+		return err;
+	}
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+			&snd_cx231xx_pcm_capture);
+	pcm->info_flags = 0;
+	pcm->private_data = dev;
+	strcpy(pcm->name, "Conexant cx231xx Capture");
+	strcpy(card->driver, "Cx231xx-Audio");
+	strcpy(card->shortname, "Cx231xx Audio");
+	strcpy(card->longname, "Conexant cx231xx Audio");
+
+	INIT_WORK(&dev->wq_trigger, audio_trigger);
+
+	err = snd_card_register(card);
+	if (err < 0) {
+		snd_card_free(card);
+		return err;
+	}
+	adev->sndcard = card;
+	adev->udev = dev->udev;
+
+	/* compute alternate max packet sizes for Audio */
+	uif =
+	    dev->udev->actconfig->interface[dev->current_pcb_config.
+					    hs_config_info[0].interface_info.
+					    audio_index + 1];
+
+	adev->end_point_addr =
+	    uif->altsetting[0].endpoint[isoc_pipe].desc.
+			bEndpointAddress;
+
+	adev->num_alt = uif->num_altsetting;
+	cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
+		     adev->end_point_addr, adev->num_alt);
+	adev->alt_max_pkt_size = kmalloc(32 * adev->num_alt, GFP_KERNEL);
+
+	if (adev->alt_max_pkt_size == NULL) {
+		cx231xx_errdev("out of memory!\n");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < adev->num_alt; i++) {
+		u16 tmp =
+		    le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].desc.
+				wMaxPacketSize);
+		adev->alt_max_pkt_size[i] =
+		    (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+		cx231xx_info("Alternate setting %i, max size= %i\n", i,
+			     adev->alt_max_pkt_size[i]);
+	}
+
+	return 0;
+}
+
+static int cx231xx_audio_fini(struct cx231xx *dev)
+{
+	if (dev == NULL)
+		return 0;
+
+	if (dev->has_alsa_audio != 1) {
+		/* This device does not support the extension (in this case
+		   the device is expecting the snd-usb-audio module or
+		   doesn't have analog audio support at all) */
+		return 0;
+	}
+
+	if (dev->adev.sndcard) {
+		snd_card_free(dev->adev.sndcard);
+		kfree(dev->adev.alt_max_pkt_size);
+		dev->adev.sndcard = NULL;
+	}
+
+	return 0;
+}
+
+static struct cx231xx_ops audio_ops = {
+	.id = CX231XX_AUDIO,
+	.name = "Cx231xx Audio Extension",
+	.init = cx231xx_audio_init,
+	.fini = cx231xx_audio_fini,
+};
+
+static int __init cx231xx_alsa_register(void)
+{
+	return cx231xx_register_extension(&audio_ops);
+}
+
+static void __exit cx231xx_alsa_unregister(void)
+{
+	cx231xx_unregister_extension(&audio_ops);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
+MODULE_DESCRIPTION("Cx231xx Audio driver");
+
+module_init(cx231xx_alsa_register);
+module_exit(cx231xx_alsa_unregister);

drivers/media/usb/cx231xx/cx231xx-conf-reg.h

@@ -0,0 +1,495 @@
+/*
+   cx231xx_conf-reg.h - driver for Conexant Cx23100/101/102 USB
+			video capture devices
+
+   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _POLARIS_REG_H_
+#define _POLARIS_REG_H_
+
+#define BOARD_CFG_STAT          0x0
+#define TS_MODE_REG             0x4
+#define TS1_CFG_REG             0x8
+#define TS1_LENGTH_REG          0xc
+#define TS2_CFG_REG             0x10
+#define TS2_LENGTH_REG          0x14
+#define EP_MODE_SET             0x18
+#define CIR_PWR_PTN1            0x1c
+#define CIR_PWR_PTN2            0x20
+#define CIR_PWR_PTN3            0x24
+#define CIR_PWR_MASK0           0x28
+#define CIR_PWR_MASK1           0x2c
+#define CIR_PWR_MASK2           0x30
+#define CIR_GAIN                0x34
+#define CIR_CAR_REG             0x38
+#define CIR_OT_CFG1             0x40
+#define CIR_OT_CFG2             0x44
+#define GBULK_BIT_EN            0x68
+#define PWR_CTL_EN              0x74
+
+/* Polaris Endpoints capture mask for register EP_MODE_SET */
+#define ENABLE_EP1              0x01   /* Bit[0]=1 */
+#define ENABLE_EP2              0x02   /* Bit[1]=1 */
+#define ENABLE_EP3              0x04   /* Bit[2]=1 */
+#define ENABLE_EP4              0x08   /* Bit[3]=1 */
+#define ENABLE_EP5              0x10   /* Bit[4]=1 */
+#define ENABLE_EP6              0x20   /* Bit[5]=1 */
+
+/* Bit definition for register PWR_CTL_EN */
+#define PWR_MODE_MASK           0x17f
+#define PWR_AV_EN               0x08   /* bit3 */
+#define PWR_ISO_EN              0x40   /* bit6 */
+#define PWR_AV_MODE             0x30   /* bit4,5  */
+#define PWR_TUNER_EN            0x04   /* bit2 */
+#define PWR_DEMOD_EN            0x02   /* bit1 */
+#define I2C_DEMOD_EN            0x01   /* bit0 */
+#define PWR_RESETOUT_EN         0x100  /* bit8 */
+
+enum AV_MODE{
+	POLARIS_AVMODE_DEFAULT = 0,
+	POLARIS_AVMODE_DIGITAL = 0x10,
+	POLARIS_AVMODE_ANALOGT_TV = 0x20,
+	POLARIS_AVMODE_ENXTERNAL_AV = 0x30,
+
+};
+
+/* Colibri Registers */
+
+#define SINGLE_ENDED            0x0
+#define LOW_IF                  0x4
+#define EU_IF                   0x9
+#define US_IF                   0xa
+
+#define SUP_BLK_TUNE1           0x00
+#define SUP_BLK_TUNE2           0x01
+#define SUP_BLK_TUNE3           0x02
+#define SUP_BLK_XTAL            0x03
+#define SUP_BLK_PLL1            0x04
+#define SUP_BLK_PLL2            0x05
+#define SUP_BLK_PLL3            0x06
+#define SUP_BLK_REF             0x07
+#define SUP_BLK_PWRDN           0x08
+#define SUP_BLK_TESTPAD         0x09
+#define ADC_COM_INT5_STAB_REF   0x0a
+#define ADC_COM_QUANT           0x0b
+#define ADC_COM_BIAS1           0x0c
+#define ADC_COM_BIAS2           0x0d
+#define ADC_COM_BIAS3           0x0e
+#define TESTBUS_CTRL            0x12
+
+#define FLD_PWRDN_TUNING_BIAS	0x10
+#define FLD_PWRDN_ENABLE_PLL	0x08
+#define FLD_PWRDN_PD_BANDGAP	0x04
+#define FLD_PWRDN_PD_BIAS	0x02
+#define FLD_PWRDN_PD_TUNECK	0x01
+
+
+#define ADC_STATUS_CH1          0x20
+#define ADC_STATUS_CH2          0x40
+#define ADC_STATUS_CH3          0x60
+
+#define ADC_STATUS2_CH1         0x21
+#define ADC_STATUS2_CH2         0x41
+#define ADC_STATUS2_CH3         0x61
+
+#define ADC_CAL_ATEST_CH1       0x22
+#define ADC_CAL_ATEST_CH2       0x42
+#define ADC_CAL_ATEST_CH3       0x62
+
+#define ADC_PWRDN_CLAMP_CH1     0x23
+#define ADC_PWRDN_CLAMP_CH2     0x43
+#define ADC_PWRDN_CLAMP_CH3     0x63
+
+#define ADC_CTRL_DAC23_CH1      0x24
+#define ADC_CTRL_DAC23_CH2      0x44
+#define ADC_CTRL_DAC23_CH3      0x64
+
+#define ADC_CTRL_DAC1_CH1       0x25
+#define ADC_CTRL_DAC1_CH2       0x45
+#define ADC_CTRL_DAC1_CH3       0x65
+
+#define ADC_DCSERVO_DEM_CH1     0x26
+#define ADC_DCSERVO_DEM_CH2     0x46
+#define ADC_DCSERVO_DEM_CH3     0x66
+
+#define ADC_FB_FRCRST_CH1       0x27
+#define ADC_FB_FRCRST_CH2       0x47
+#define ADC_FB_FRCRST_CH3       0x67
+
+#define ADC_INPUT_CH1           0x28
+#define ADC_INPUT_CH2           0x48
+#define ADC_INPUT_CH3           0x68
+#define INPUT_SEL_MASK          0x30   /* [5:4] in_sel */
+
+#define ADC_NTF_PRECLMP_EN_CH1  0x29
+#define ADC_NTF_PRECLMP_EN_CH2  0x49
+#define ADC_NTF_PRECLMP_EN_CH3  0x69
+
+#define ADC_QGAIN_RES_TRM_CH1   0x2a
+#define ADC_QGAIN_RES_TRM_CH2   0x4a
+#define ADC_QGAIN_RES_TRM_CH3   0x6a
+
+#define ADC_SOC_PRECLMP_TERM_CH1    0x2b
+#define ADC_SOC_PRECLMP_TERM_CH2    0x4b
+#define ADC_SOC_PRECLMP_TERM_CH3    0x6b
+
+#define TESTBUS_CTRL_CH1        0x32
+#define TESTBUS_CTRL_CH2        0x52
+#define TESTBUS_CTRL_CH3        0x72
+
+/******************************************************************************
+			    * DIF registers *
+ ******************************************************************************/
+#define      DIRECT_IF_REVB_BASE  0x00300
+
+/*****************************************************************************/
+#define      DIF_PLL_FREQ_WORD        (DIRECT_IF_REVB_BASE + 0x00000000)
+/*****************************************************************************/
+#define      FLD_DIF_PLL_LOCK                           0x80000000
+/*  Reserved                                [30:29] */
+#define      FLD_DIF_PLL_FREE_RUN                       0x10000000
+#define      FLD_DIF_PLL_FREQ                           0x0fffffff
+
+/*****************************************************************************/
+#define      DIF_PLL_CTRL             (DIRECT_IF_REVB_BASE + 0x00000004)
+/*****************************************************************************/
+#define      FLD_DIF_KD_PD                              0xff000000
+/*  Reserved                             [23:20] */
+#define      FLD_DIF_KDS_PD                             0x000f0000
+#define      FLD_DIF_KI_PD                              0x0000ff00
+/*  Reserved                             [7:4] */
+#define      FLD_DIF_KIS_PD                             0x0000000f
+
+/*****************************************************************************/
+#define      DIF_PLL_CTRL1            (DIRECT_IF_REVB_BASE + 0x00000008)
+/*****************************************************************************/
+#define      FLD_DIF_KD_FD                              0xff000000
+/*  Reserved                             [23:20] */
+#define      FLD_DIF_KDS_FD                             0x000f0000
+#define      FLD_DIF_KI_FD                              0x0000ff00
+#define      FLD_DIF_SIG_PROP_SZ                        0x000000f0
+#define      FLD_DIF_KIS_FD                             0x0000000f
+
+/*****************************************************************************/
+#define      DIF_PLL_CTRL2            (DIRECT_IF_REVB_BASE + 0x0000000c)
+/*****************************************************************************/
+#define      FLD_DIF_PLL_AGC_REF                        0xfff00000
+#define      FLD_DIF_PLL_AGC_KI                         0x000f0000
+/*  Reserved                             [15] */
+#define      FLD_DIF_FREQ_LIMIT                         0x00007000
+#define      FLD_DIF_K_FD                               0x00000f00
+#define      FLD_DIF_DOWNSMPL_FD                        0x000000ff
+
+/*****************************************************************************/
+#define      DIF_PLL_CTRL3            (DIRECT_IF_REVB_BASE + 0x00000010)
+/*****************************************************************************/
+/*  Reserved                             [31:16] */
+#define      FLD_DIF_PLL_AGC_EN                         0x00008000
+/*  Reserved                             [14:12] */
+#define      FLD_DIF_PLL_MAN_GAIN                       0x00000fff
+
+/*****************************************************************************/
+#define      DIF_AGC_IF_REF           (DIRECT_IF_REVB_BASE + 0x00000014)
+/*****************************************************************************/
+#define      FLD_DIF_K_AGC_RF                           0xf0000000
+#define      FLD_DIF_K_AGC_IF                           0x0f000000
+#define      FLD_DIF_K_AGC_INT                          0x00f00000
+/*  Reserved                             [19:12] */
+#define      FLD_DIF_IF_REF                             0x00000fff
+
+/*****************************************************************************/
+#define      DIF_AGC_CTRL_IF          (DIRECT_IF_REVB_BASE + 0x00000018)
+/*****************************************************************************/
+#define      FLD_DIF_IF_MAX                             0xff000000
+#define      FLD_DIF_IF_MIN                             0x00ff0000
+#define      FLD_DIF_IF_AGC                             0x0000ffff
+
+/*****************************************************************************/
+#define      DIF_AGC_CTRL_INT         (DIRECT_IF_REVB_BASE + 0x0000001c)
+/*****************************************************************************/
+#define      FLD_DIF_INT_MAX                            0xff000000
+#define      FLD_DIF_INT_MIN                            0x00ff0000
+#define      FLD_DIF_INT_AGC                            0x0000ffff
+
+/*****************************************************************************/
+#define      DIF_AGC_CTRL_RF          (DIRECT_IF_REVB_BASE + 0x00000020)
+/*****************************************************************************/
+#define      FLD_DIF_RF_MAX                             0xff000000
+#define      FLD_DIF_RF_MIN                             0x00ff0000
+#define      FLD_DIF_RF_AGC                             0x0000ffff
+
+/*****************************************************************************/
+#define      DIF_AGC_IF_INT_CURRENT   (DIRECT_IF_REVB_BASE + 0x00000024)
+/*****************************************************************************/
+#define      FLD_DIF_IF_AGC_IN                          0xffff0000
+#define      FLD_DIF_INT_AGC_IN                         0x0000ffff
+
+/*****************************************************************************/
+#define      DIF_AGC_RF_CURRENT       (DIRECT_IF_REVB_BASE + 0x00000028)
+/*****************************************************************************/
+/*  Reserved                            [31:16] */
+#define      FLD_DIF_RF_AGC_IN                          0x0000ffff
+
+/*****************************************************************************/
+#define      DIF_VIDEO_AGC_CTRL       (DIRECT_IF_REVB_BASE + 0x0000002c)
+/*****************************************************************************/
+#define      FLD_DIF_AFD                                0xc0000000
+#define      FLD_DIF_K_VID_AGC                          0x30000000
+#define      FLD_DIF_LINE_LENGTH                        0x0fff0000
+#define      FLD_DIF_AGC_GAIN                           0x0000ffff
+
+/*****************************************************************************/
+#define      DIF_VID_AUD_OVERRIDE     (DIRECT_IF_REVB_BASE + 0x00000030)
+/*****************************************************************************/
+#define      FLD_DIF_AUDIO_AGC_OVERRIDE                 0x80000000
+/*  Reserved                             [30:30] */
+#define      FLD_DIF_AUDIO_MAN_GAIN                     0x3f000000
+/*  Reserved                             [23:17] */
+#define      FLD_DIF_VID_AGC_OVERRIDE                   0x00010000
+#define      FLD_DIF_VID_MAN_GAIN                       0x0000ffff
+
+/*****************************************************************************/
+#define      DIF_AV_SEP_CTRL          (DIRECT_IF_REVB_BASE + 0x00000034)
+/*****************************************************************************/
+#define      FLD_DIF_LPF_FREQ                           0xc0000000
+#define      FLD_DIF_AV_PHASE_INC                       0x3f000000
+#define      FLD_DIF_AUDIO_FREQ                         0x00ffffff
+
+/*****************************************************************************/
+#define      DIF_COMP_FLT_CTRL        (DIRECT_IF_REVB_BASE + 0x00000038)
+/*****************************************************************************/
+/*  Reserved                            [31:24] */
+#define      FLD_DIF_IIR23_R2                           0x00ff0000
+#define      FLD_DIF_IIR23_R1                           0x0000ff00
+#define      FLD_DIF_IIR1_R1                            0x000000ff
+
+/*****************************************************************************/
+#define      DIF_MISC_CTRL            (DIRECT_IF_REVB_BASE + 0x0000003c)
+/*****************************************************************************/
+#define      FLD_DIF_DIF_BYPASS                         0x80000000
+#define      FLD_DIF_FM_NYQ_GAIN                        0x40000000
+#define      FLD_DIF_RF_AGC_ENA                         0x20000000
+#define      FLD_DIF_INT_AGC_ENA                        0x10000000
+#define      FLD_DIF_IF_AGC_ENA                         0x08000000
+#define      FLD_DIF_FORCE_RF_IF_LOCK                   0x04000000
+#define      FLD_DIF_VIDEO_AGC_ENA                      0x02000000
+#define      FLD_DIF_RF_AGC_INV                         0x01000000
+#define      FLD_DIF_INT_AGC_INV                        0x00800000
+#define      FLD_DIF_IF_AGC_INV                         0x00400000
+#define      FLD_DIF_SPEC_INV                           0x00200000
+#define      FLD_DIF_AUD_FULL_BW                        0x00100000
+#define      FLD_DIF_AUD_SRC_SEL                        0x00080000
+/*  Reserved                             [18] */
+#define      FLD_DIF_IF_FREQ                            0x00030000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_TIP_OFFSET                         0x00003f00
+/*  Reserved                             [7:5] */
+#define      FLD_DIF_DITHER_ENA                         0x00000010
+/*  Reserved                             [3:1] */
+#define      FLD_DIF_RF_IF_LOCK                         0x00000001
+
+/*****************************************************************************/
+#define      DIF_SRC_PHASE_INC        (DIRECT_IF_REVB_BASE + 0x00000040)
+/*****************************************************************************/
+/*  Reserved                             [31:29] */
+#define      FLD_DIF_PHASE_INC                          0x1fffffff
+
+/*****************************************************************************/
+#define      DIF_SRC_GAIN_CONTROL     (DIRECT_IF_REVB_BASE + 0x00000044)
+/*****************************************************************************/
+/*  Reserved                             [31:16] */
+#define      FLD_DIF_SRC_KI                             0x0000ff00
+#define      FLD_DIF_SRC_KD                             0x000000ff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF01          (DIRECT_IF_REVB_BASE + 0x00000048)
+/*****************************************************************************/
+/*  Reserved                             [31:19] */
+#define      FLD_DIF_BPF_COEFF_0                        0x00070000
+/*  Reserved                             [15:4] */
+#define      FLD_DIF_BPF_COEFF_1                        0x0000000f
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF23          (DIRECT_IF_REVB_BASE + 0x0000004c)
+/*****************************************************************************/
+/*  Reserved                             [31:22] */
+#define      FLD_DIF_BPF_COEFF_2                        0x003f0000
+/*  Reserved                             [15:7] */
+#define      FLD_DIF_BPF_COEFF_3                        0x0000007f
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF45          (DIRECT_IF_REVB_BASE + 0x00000050)
+/*****************************************************************************/
+/*  Reserved                             [31:24] */
+#define      FLD_DIF_BPF_COEFF_4                        0x00ff0000
+/*  Reserved                             [15:8] */
+#define      FLD_DIF_BPF_COEFF_5                        0x000000ff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF67          (DIRECT_IF_REVB_BASE + 0x00000054)
+/*****************************************************************************/
+/*  Reserved                             [31:25] */
+#define      FLD_DIF_BPF_COEFF_6                        0x01ff0000
+/*  Reserved                             [15:9] */
+#define      FLD_DIF_BPF_COEFF_7                        0x000001ff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF89          (DIRECT_IF_REVB_BASE + 0x00000058)
+/*****************************************************************************/
+/*  Reserved                             [31:26] */
+#define      FLD_DIF_BPF_COEFF_8                        0x03ff0000
+/*  Reserved                             [15:10] */
+#define      FLD_DIF_BPF_COEFF_9                        0x000003ff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF1011        (DIRECT_IF_REVB_BASE + 0x0000005c)
+/*****************************************************************************/
+/*  Reserved                             [31:27] */
+#define      FLD_DIF_BPF_COEFF_10                       0x07ff0000
+/*  Reserved                             [15:11] */
+#define      FLD_DIF_BPF_COEFF_11                       0x000007ff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF1213        (DIRECT_IF_REVB_BASE + 0x00000060)
+/*****************************************************************************/
+/*  Reserved                             [31:27] */
+#define      FLD_DIF_BPF_COEFF_12                       0x07ff0000
+/*  Reserved                             [15:12] */
+#define      FLD_DIF_BPF_COEFF_13                       0x00000fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF1415        (DIRECT_IF_REVB_BASE + 0x00000064)
+/*****************************************************************************/
+/*  Reserved                             [31:28] */
+#define      FLD_DIF_BPF_COEFF_14                       0x0fff0000
+/*  Reserved                             [15:12] */
+#define      FLD_DIF_BPF_COEFF_15                       0x00000fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF1617        (DIRECT_IF_REVB_BASE + 0x00000068)
+/*****************************************************************************/
+/*  Reserved                             [31:29] */
+#define      FLD_DIF_BPF_COEFF_16                       0x1fff0000
+/*  Reserved                             [15:13] */
+#define      FLD_DIF_BPF_COEFF_17                       0x00001fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF1819        (DIRECT_IF_REVB_BASE + 0x0000006c)
+/*****************************************************************************/
+/*  Reserved                             [31:29] */
+#define      FLD_DIF_BPF_COEFF_18                       0x1fff0000
+/*  Reserved                             [15:13] */
+#define      FLD_DIF_BPF_COEFF_19                       0x00001fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF2021        (DIRECT_IF_REVB_BASE + 0x00000070)
+/*****************************************************************************/
+/*  Reserved                             [31:29] */
+#define      FLD_DIF_BPF_COEFF_20                       0x1fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_21                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF2223        (DIRECT_IF_REVB_BASE + 0x00000074)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_22                       0x3fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_23                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF2425        (DIRECT_IF_REVB_BASE + 0x00000078)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_24                       0x3fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_25                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF2627        (DIRECT_IF_REVB_BASE + 0x0000007c)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_26                       0x3fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_27                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF2829        (DIRECT_IF_REVB_BASE + 0x00000080)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_28                       0x3fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_29                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF3031        (DIRECT_IF_REVB_BASE + 0x00000084)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_30                       0x3fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_31                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF3233        (DIRECT_IF_REVB_BASE + 0x00000088)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_32                       0x3fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_33                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF3435        (DIRECT_IF_REVB_BASE + 0x0000008c)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_34                       0x3fff0000
+/*  Reserved                             [15:14] */
+#define      FLD_DIF_BPF_COEFF_35                       0x00003fff
+
+/*****************************************************************************/
+#define      DIF_BPF_COEFF36          (DIRECT_IF_REVB_BASE + 0x00000090)
+/*****************************************************************************/
+/*  Reserved                             [31:30] */
+#define      FLD_DIF_BPF_COEFF_36                       0x3fff0000
+/*  Reserved                             [15:0] */
+
+/*****************************************************************************/
+#define      DIF_RPT_VARIANCE         (DIRECT_IF_REVB_BASE + 0x00000094)
+/*****************************************************************************/
+/*  Reserved                             [31:20] */
+#define      FLD_DIF_RPT_VARIANCE                       0x000fffff
+
+/*****************************************************************************/
+#define      DIF_SOFT_RST_CTRL_REVB       (DIRECT_IF_REVB_BASE + 0x00000098)
+/*****************************************************************************/
+/*  Reserved                             [31:8] */
+#define      FLD_DIF_DIF_SOFT_RST                       0x00000080
+#define      FLD_DIF_DIF_REG_RST_MSK                    0x00000040
+#define      FLD_DIF_AGC_RST_MSK                        0x00000020
+#define      FLD_DIF_CMP_RST_MSK                        0x00000010
+#define      FLD_DIF_AVS_RST_MSK                        0x00000008
+#define      FLD_DIF_NYQ_RST_MSK                        0x00000004
+#define      FLD_DIF_DIF_SRC_RST_MSK                    0x00000002
+#define      FLD_DIF_PLL_RST_MSK                        0x00000001
+
+/*****************************************************************************/
+#define      DIF_PLL_FREQ_ERR         (DIRECT_IF_REVB_BASE + 0x0000009c)
+/*****************************************************************************/
+/*  Reserved                             [31:25] */
+#define      FLD_DIF_CTL_IP                             0x01ffffff
+
+#endif

drivers/media/usb/cx231xx/cx231xx-dvb.c

@@ -0,0 +1,900 @@
+/*
+ DVB device driver for cx231xx
+
+ Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+		Based on em28xx driver
+
+ This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+
+#include "cx231xx.h"
+#include <media/v4l2-common.h>
+#include <media/videobuf-vmalloc.h>
+
+#include "xc5000.h"
+#include "s5h1432.h"
+#include "tda18271.h"
+#include "s5h1411.h"
+#include "lgdt3305.h"
+#include "si2165.h"
+#include "mb86a20s.h"
+#include "si2157.h"
+
+MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
+MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
+MODULE_LICENSE("GPL");
+
+static unsigned int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+#define dprintk(level, fmt, arg...) do {			\
+if (debug >= level) 						\
+	printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg);	\
+} while (0)
+
+#define CX231XX_DVB_NUM_BUFS 5
+#define CX231XX_DVB_MAX_PACKETSIZE 564
+#define CX231XX_DVB_MAX_PACKETS 64
+
+struct cx231xx_dvb {
+	struct dvb_frontend *frontend;
+
+	/* feed count management */
+	struct mutex lock;
+	int nfeeds;
+
+	/* general boilerplate stuff */
+	struct dvb_adapter adapter;
+	struct dvb_demux demux;
+	struct dmxdev dmxdev;
+	struct dmx_frontend fe_hw;
+	struct dmx_frontend fe_mem;
+	struct dvb_net net;
+	struct i2c_client *i2c_client_tuner;
+};
+
+static struct s5h1432_config dvico_s5h1432_config = {
+	.output_mode   = S5H1432_SERIAL_OUTPUT,
+	.gpio          = S5H1432_GPIO_ON,
+	.qam_if        = S5H1432_IF_4000,
+	.vsb_if        = S5H1432_IF_4000,
+	.inversion     = S5H1432_INVERSION_OFF,
+	.status_mode   = S5H1432_DEMODLOCKING,
+	.mpeg_timing   = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
+};
+
+static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
+	.dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
+		      .if_lvl = 1, .rfagc_top = 0x37, },
+	.dvbt_7   = { .if_freq = 4000, .agc_mode = 3, .std = 5,
+		      .if_lvl = 1, .rfagc_top = 0x37, },
+	.dvbt_8   = { .if_freq = 4000, .agc_mode = 3, .std = 6,
+		      .if_lvl = 1, .rfagc_top = 0x37, },
+};
+
+static struct tda18271_std_map mb86a20s_tda18271_config = {
+	.dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
+		      .if_lvl = 0, .rfagc_top = 0x37, },
+};
+
+static struct tda18271_config cnxt_rde253s_tunerconfig = {
+	.std_map = &cnxt_rde253s_tda18271_std_map,
+	.gate    = TDA18271_GATE_ANALOG,
+};
+
+static struct s5h1411_config tda18271_s5h1411_config = {
+	.output_mode   = S5H1411_SERIAL_OUTPUT,
+	.gpio          = S5H1411_GPIO_OFF,
+	.vsb_if        = S5H1411_IF_3250,
+	.qam_if        = S5H1411_IF_4000,
+	.inversion     = S5H1411_INVERSION_ON,
+	.status_mode   = S5H1411_DEMODLOCKING,
+	.mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
+};
+static struct s5h1411_config xc5000_s5h1411_config = {
+	.output_mode   = S5H1411_SERIAL_OUTPUT,
+	.gpio          = S5H1411_GPIO_OFF,
+	.vsb_if        = S5H1411_IF_3250,
+	.qam_if        = S5H1411_IF_3250,
+	.inversion     = S5H1411_INVERSION_OFF,
+	.status_mode   = S5H1411_DEMODLOCKING,
+	.mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
+};
+
+static struct lgdt3305_config hcw_lgdt3305_config = {
+	.i2c_addr           = 0x0e,
+	.mpeg_mode          = LGDT3305_MPEG_SERIAL,
+	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
+	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
+	.deny_i2c_rptr      = 1,
+	.spectral_inversion = 1,
+	.qam_if_khz         = 4000,
+	.vsb_if_khz         = 3250,
+};
+
+static struct tda18271_std_map hauppauge_tda18271_std_map = {
+	.atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 4,
+		      .if_lvl = 1, .rfagc_top = 0x58, },
+	.qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 5,
+		      .if_lvl = 1, .rfagc_top = 0x58, },
+};
+
+static struct tda18271_config hcw_tda18271_config = {
+	.std_map = &hauppauge_tda18271_std_map,
+	.gate    = TDA18271_GATE_DIGITAL,
+};
+
+static const struct mb86a20s_config pv_mb86a20s_config = {
+	.demod_address = 0x10,
+	.is_serial = true,
+};
+
+static struct tda18271_config pv_tda18271_config = {
+	.std_map = &mb86a20s_tda18271_config,
+	.gate    = TDA18271_GATE_DIGITAL,
+	.small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
+};
+
+static const struct si2165_config hauppauge_930C_HD_1113xx_si2165_config = {
+	.i2c_addr	= 0x64,
+	.chip_mode	= SI2165_MODE_PLL_XTAL,
+	.ref_freq_Hz	= 16000000,
+};
+
+static const struct si2165_config pctv_quatro_stick_1114xx_si2165_config = {
+	.i2c_addr	= 0x64,
+	.chip_mode	= SI2165_MODE_PLL_EXT,
+	.ref_freq_Hz	= 24000000,
+};
+
+static inline void print_err_status(struct cx231xx *dev, int packet, int status)
+{
+	char *errmsg = "Unknown";
+
+	switch (status) {
+	case -ENOENT:
+		errmsg = "unlinked synchronuously";
+		break;
+	case -ECONNRESET:
+		errmsg = "unlinked asynchronuously";
+		break;
+	case -ENOSR:
+		errmsg = "Buffer error (overrun)";
+		break;
+	case -EPIPE:
+		errmsg = "Stalled (device not responding)";
+		break;
+	case -EOVERFLOW:
+		errmsg = "Babble (bad cable?)";
+		break;
+	case -EPROTO:
+		errmsg = "Bit-stuff error (bad cable?)";
+		break;
+	case -EILSEQ:
+		errmsg = "CRC/Timeout (could be anything)";
+		break;
+	case -ETIME:
+		errmsg = "Device does not respond";
+		break;
+	}
+	if (packet < 0) {
+		dprintk(1, "URB status %d [%s].\n", status, errmsg);
+	} else {
+		dprintk(1, "URB packet %d, status %d [%s].\n",
+			packet, status, errmsg);
+	}
+}
+
+static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
+{
+	int i;
+
+	if (!dev)
+		return 0;
+
+	if (dev->state & DEV_DISCONNECTED)
+		return 0;
+
+	if (urb->status < 0) {
+		print_err_status(dev, -1, urb->status);
+		if (urb->status == -ENOENT)
+			return 0;
+	}
+
+	for (i = 0; i < urb->number_of_packets; i++) {
+		int status = urb->iso_frame_desc[i].status;
+
+		if (status < 0) {
+			print_err_status(dev, i, status);
+			if (urb->iso_frame_desc[i].status != -EPROTO)
+				continue;
+		}
+
+		dvb_dmx_swfilter(&dev->dvb->demux,
+				 urb->transfer_buffer +
+				urb->iso_frame_desc[i].offset,
+				urb->iso_frame_desc[i].actual_length);
+	}
+
+	return 0;
+}
+
+static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
+{
+	if (!dev)
+		return 0;
+
+	if (dev->state & DEV_DISCONNECTED)
+		return 0;
+
+	if (urb->status < 0) {
+		print_err_status(dev, -1, urb->status);
+		if (urb->status == -ENOENT)
+			return 0;
+	}
+
+	/* Feed the transport payload into the kernel demux */
+	dvb_dmx_swfilter(&dev->dvb->demux,
+		urb->transfer_buffer, urb->actual_length);
+
+	return 0;
+}
+
+static int start_streaming(struct cx231xx_dvb *dvb)
+{
+	int rc;
+	struct cx231xx *dev = dvb->adapter.priv;
+
+	if (dev->USE_ISO) {
+		cx231xx_info("DVB transfer mode is ISO.\n");
+		mutex_lock(&dev->i2c_lock);
+		cx231xx_enable_i2c_port_3(dev, false);
+		cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
+		cx231xx_enable_i2c_port_3(dev, true);
+		mutex_unlock(&dev->i2c_lock);
+		rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
+		if (rc < 0)
+			return rc;
+		dev->mode_tv = 1;
+		return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
+					CX231XX_DVB_NUM_BUFS,
+					dev->ts1_mode.max_pkt_size,
+					dvb_isoc_copy);
+	} else {
+		cx231xx_info("DVB transfer mode is BULK.\n");
+		cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
+		rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
+		if (rc < 0)
+			return rc;
+		dev->mode_tv = 1;
+		return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
+					CX231XX_DVB_NUM_BUFS,
+					dev->ts1_mode.max_pkt_size,
+					dvb_bulk_copy);
+	}
+
+}
+
+static int stop_streaming(struct cx231xx_dvb *dvb)
+{
+	struct cx231xx *dev = dvb->adapter.priv;
+
+	if (dev->USE_ISO)
+		cx231xx_uninit_isoc(dev);
+	else
+		cx231xx_uninit_bulk(dev);
+
+	cx231xx_set_mode(dev, CX231XX_SUSPEND);
+
+	return 0;
+}
+
+static int start_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct cx231xx_dvb *dvb = demux->priv;
+	int rc, ret;
+
+	if (!demux->dmx.frontend)
+		return -EINVAL;
+
+	mutex_lock(&dvb->lock);
+	dvb->nfeeds++;
+	rc = dvb->nfeeds;
+
+	if (dvb->nfeeds == 1) {
+		ret = start_streaming(dvb);
+		if (ret < 0)
+			rc = ret;
+	}
+
+	mutex_unlock(&dvb->lock);
+	return rc;
+}
+
+static int stop_feed(struct dvb_demux_feed *feed)
+{
+	struct dvb_demux *demux = feed->demux;
+	struct cx231xx_dvb *dvb = demux->priv;
+	int err = 0;
+
+	mutex_lock(&dvb->lock);
+	dvb->nfeeds--;
+
+	if (0 == dvb->nfeeds)
+		err = stop_streaming(dvb);
+
+	mutex_unlock(&dvb->lock);
+	return err;
+}
+
+/* ------------------------------------------------------------------ */
+static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
+{
+	struct cx231xx *dev = fe->dvb->priv;
+
+	if (acquire)
+		return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
+	else
+		return cx231xx_set_mode(dev, CX231XX_SUSPEND);
+}
+
+/* ------------------------------------------------------------------ */
+
+static struct xc5000_config cnxt_rde250_tunerconfig = {
+	.i2c_address = 0x61,
+	.if_khz = 4000,
+};
+static struct xc5000_config cnxt_rdu250_tunerconfig = {
+	.i2c_address = 0x61,
+	.if_khz = 3250,
+};
+
+/* ------------------------------------------------------------------ */
+#if 0
+static int attach_xc5000(u8 addr, struct cx231xx *dev)
+{
+
+	struct dvb_frontend *fe;
+	struct xc5000_config cfg;
+
+	memset(&cfg, 0, sizeof(cfg));
+	cfg.i2c_adap = &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap;
+	cfg.i2c_addr = addr;
+
+	if (!dev->dvb->frontend) {
+		printk(KERN_ERR "%s/2: dvb frontend not attached. "
+		       "Can't attach xc5000\n", dev->name);
+		return -EINVAL;
+	}
+
+	fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
+	if (!fe) {
+		printk(KERN_ERR "%s/2: xc5000 attach failed\n", dev->name);
+		dvb_frontend_detach(dev->dvb->frontend);
+		dev->dvb->frontend = NULL;
+		return -EINVAL;
+	}
+
+	printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name);
+
+	return 0;
+}
+#endif
+
+int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
+{
+	if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
+
+		struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
+
+		if (dops->set_analog_params != NULL) {
+			struct analog_parameters params;
+
+			params.frequency = freq;
+			params.std = dev->norm;
+			params.mode = 0;	/* 0- Air; 1 - cable */
+			/*params.audmode = ;       */
+
+			/* Set the analog parameters to set the frequency */
+			dops->set_analog_params(dev->dvb->frontend, &params);
+		}
+
+	}
+
+	return 0;
+}
+
+int cx231xx_reset_analog_tuner(struct cx231xx *dev)
+{
+	int status = 0;
+
+	if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
+
+		struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
+
+		if (dops->init != NULL && !dev->xc_fw_load_done) {
+
+			cx231xx_info("Reloading firmware for XC5000\n");
+			status = dops->init(dev->dvb->frontend);
+			if (status == 0) {
+				dev->xc_fw_load_done = 1;
+				cx231xx_info
+				    ("XC5000 firmware download completed\n");
+			} else {
+				dev->xc_fw_load_done = 0;
+				cx231xx_info
+				    ("XC5000 firmware download failed !!!\n");
+			}
+		}
+
+	}
+
+	return status;
+}
+
+/* ------------------------------------------------------------------ */
+
+static int register_dvb(struct cx231xx_dvb *dvb,
+			struct module *module,
+			struct cx231xx *dev, struct device *device)
+{
+	int result;
+
+	mutex_init(&dvb->lock);
+
+	/* register adapter */
+	result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
+				      adapter_nr);
+	if (result < 0) {
+		printk(KERN_WARNING
+		       "%s: dvb_register_adapter failed (errno = %d)\n",
+		       dev->name, result);
+		goto fail_adapter;
+	}
+
+	/* Ensure all frontends negotiate bus access */
+	dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
+
+	dvb->adapter.priv = dev;
+
+	/* register frontend */
+	result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
+	if (result < 0) {
+		printk(KERN_WARNING
+		       "%s: dvb_register_frontend failed (errno = %d)\n",
+		       dev->name, result);
+		goto fail_frontend;
+	}
+
+	/* register demux stuff */
+	dvb->demux.dmx.capabilities =
+	    DMX_TS_FILTERING | DMX_SECTION_FILTERING |
+	    DMX_MEMORY_BASED_FILTERING;
+	dvb->demux.priv = dvb;
+	dvb->demux.filternum = 256;
+	dvb->demux.feednum = 256;
+	dvb->demux.start_feed = start_feed;
+	dvb->demux.stop_feed = stop_feed;
+
+	result = dvb_dmx_init(&dvb->demux);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
+		       dev->name, result);
+		goto fail_dmx;
+	}
+
+	dvb->dmxdev.filternum = 256;
+	dvb->dmxdev.demux = &dvb->demux.dmx;
+	dvb->dmxdev.capabilities = 0;
+	result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
+	if (result < 0) {
+		printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
+		       dev->name, result);
+		goto fail_dmxdev;
+	}
+
+	dvb->fe_hw.source = DMX_FRONTEND_0;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		printk(KERN_WARNING
+		       "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
+		       dev->name, result);
+		goto fail_fe_hw;
+	}
+
+	dvb->fe_mem.source = DMX_MEMORY_FE;
+	result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	if (result < 0) {
+		printk(KERN_WARNING
+		       "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
+		       dev->name, result);
+		goto fail_fe_mem;
+	}
+
+	result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	if (result < 0) {
+		printk(KERN_WARNING
+		       "%s: connect_frontend failed (errno = %d)\n", dev->name,
+		       result);
+		goto fail_fe_conn;
+	}
+
+	/* register network adapter */
+	dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
+	return 0;
+
+fail_fe_conn:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+fail_fe_mem:
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+fail_fe_hw:
+	dvb_dmxdev_release(&dvb->dmxdev);
+fail_dmxdev:
+	dvb_dmx_release(&dvb->demux);
+fail_dmx:
+	dvb_unregister_frontend(dvb->frontend);
+fail_frontend:
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+fail_adapter:
+	return result;
+}
+
+static void unregister_dvb(struct cx231xx_dvb *dvb)
+{
+	struct i2c_client *client;
+	dvb_net_release(&dvb->net);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
+	dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
+	dvb_dmxdev_release(&dvb->dmxdev);
+	dvb_dmx_release(&dvb->demux);
+	client = dvb->i2c_client_tuner;
+	/* remove I2C tuner */
+	if (client) {
+		module_put(client->dev.driver->owner);
+		i2c_unregister_device(client);
+	}
+	dvb_unregister_frontend(dvb->frontend);
+	dvb_frontend_detach(dvb->frontend);
+	dvb_unregister_adapter(&dvb->adapter);
+}
+
+static int dvb_init(struct cx231xx *dev)
+{
+	int result = 0;
+	struct cx231xx_dvb *dvb;
+
+	if (!dev->board.has_dvb) {
+		/* This device does not support the extension */
+		return 0;
+	}
+
+	dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
+
+	if (dvb == NULL) {
+		printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n");
+		return -ENOMEM;
+	}
+	dev->dvb = dvb;
+	dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
+	dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
+
+	mutex_lock(&dev->lock);
+	cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
+	cx231xx_demod_reset(dev);
+	/* init frontend */
+	switch (dev->model) {
+	case CX231XX_BOARD_CNXT_CARRAERA:
+	case CX231XX_BOARD_CNXT_RDE_250:
+
+		dev->dvb->frontend = dvb_attach(s5h1432_attach,
+					&dvico_s5h1432_config,
+					&dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach s5h1432 front end\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
+			       &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			       &cnxt_rde250_tunerconfig)) {
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		break;
+	case CX231XX_BOARD_CNXT_SHELBY:
+	case CX231XX_BOARD_CNXT_RDU_250:
+
+		dev->dvb->frontend = dvb_attach(s5h1411_attach,
+					       &xc5000_s5h1411_config,
+					       &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach s5h1411 front end\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
+			       &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			       &cnxt_rdu250_tunerconfig)) {
+			result = -EINVAL;
+			goto out_free;
+		}
+		break;
+	case CX231XX_BOARD_CNXT_RDE_253S:
+
+		dev->dvb->frontend = dvb_attach(s5h1432_attach,
+					&dvico_s5h1432_config,
+					&dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach s5h1432 front end\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
+			       0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			       &cnxt_rde253s_tunerconfig)) {
+			result = -EINVAL;
+			goto out_free;
+		}
+		break;
+	case CX231XX_BOARD_CNXT_RDU_253S:
+	case CX231XX_BOARD_KWORLD_UB445_USB_HYBRID:
+
+		dev->dvb->frontend = dvb_attach(s5h1411_attach,
+					       &tda18271_s5h1411_config,
+					       &dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach s5h1411 front end\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
+			       0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			       &cnxt_rde253s_tunerconfig)) {
+			result = -EINVAL;
+			goto out_free;
+		}
+		break;
+	case CX231XX_BOARD_HAUPPAUGE_EXETER:
+
+		printk(KERN_INFO "%s: looking for tuner / demod on i2c bus: %d\n",
+		       __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
+
+		dev->dvb->frontend = dvb_attach(lgdt3305_attach,
+						&hcw_lgdt3305_config,
+						&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach LG3305 front end\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		dvb_attach(tda18271_attach, dev->dvb->frontend,
+			   0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			   &hcw_tda18271_config);
+		break;
+
+	case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
+
+		dev->dvb->frontend = dvb_attach(si2165_attach,
+			&hauppauge_930C_HD_1113xx_si2165_config,
+			&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap
+			);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach SI2165 front end\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		dvb_attach(tda18271_attach, dev->dvb->frontend,
+			0x60,
+			&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			&hcw_tda18271_config);
+
+		dev->cx231xx_reset_analog_tuner = NULL;
+		break;
+
+	case CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx:
+	{
+		struct i2c_client *client;
+		struct i2c_board_info info;
+		struct si2157_config si2157_config;
+
+		memset(&info, 0, sizeof(struct i2c_board_info));
+
+		dev->dvb->frontend = dvb_attach(si2165_attach,
+			&pctv_quatro_stick_1114xx_si2165_config,
+			&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap
+			);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach SI2165 front end\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		/* attach tuner */
+		memset(&si2157_config, 0, sizeof(si2157_config));
+		si2157_config.fe = dev->dvb->frontend;
+		si2157_config.inversion = true;
+		strlcpy(info.type, "si2157", I2C_NAME_SIZE);
+		info.addr = 0x60;
+		info.platform_data = &si2157_config;
+		request_module("si2157");
+
+		client = i2c_new_device(
+			&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			&info);
+		if (client == NULL || client->dev.driver == NULL) {
+			dvb_frontend_detach(dev->dvb->frontend);
+			result = -ENODEV;
+			goto out_free;
+		}
+
+		if (!try_module_get(client->dev.driver->owner)) {
+			i2c_unregister_device(client);
+			dvb_frontend_detach(dev->dvb->frontend);
+			result = -ENODEV;
+			goto out_free;
+		}
+
+		dev->cx231xx_reset_analog_tuner = NULL;
+
+		dev->dvb->i2c_client_tuner = client;
+		break;
+	}
+
+	case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
+	case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
+
+		printk(KERN_INFO "%s: looking for demod on i2c bus: %d\n",
+		       __func__, i2c_adapter_id(&dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap));
+
+		dev->dvb->frontend = dvb_attach(mb86a20s_attach,
+						&pv_mb86a20s_config,
+						&dev->i2c_bus[dev->board.demod_i2c_master].i2c_adap);
+
+		if (dev->dvb->frontend == NULL) {
+			printk(DRIVER_NAME
+			       ": Failed to attach mb86a20s demod\n");
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		/* define general-purpose callback pointer */
+		dvb->frontend->callback = cx231xx_tuner_callback;
+
+		dvb_attach(tda18271_attach, dev->dvb->frontend,
+			   0x60, &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
+			   &pv_tda18271_config);
+		break;
+
+	default:
+		printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
+		       " isn't supported yet\n", dev->name);
+		break;
+	}
+	if (NULL == dvb->frontend) {
+		printk(KERN_ERR
+		       "%s/2: frontend initialization failed\n", dev->name);
+		result = -EINVAL;
+		goto out_free;
+	}
+
+	/* register everything */
+	result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
+
+	if (result < 0)
+		goto out_free;
+
+
+	printk(KERN_INFO "Successfully loaded cx231xx-dvb\n");
+
+ret:
+	cx231xx_set_mode(dev, CX231XX_SUSPEND);
+	mutex_unlock(&dev->lock);
+	return result;
+
+out_free:
+	kfree(dvb);
+	dev->dvb = NULL;
+	goto ret;
+}
+
+static int dvb_fini(struct cx231xx *dev)
+{
+	if (!dev->board.has_dvb) {
+		/* This device does not support the extension */
+		return 0;
+	}
+
+	if (dev->dvb) {
+		unregister_dvb(dev->dvb);
+		dev->dvb = NULL;
+	}
+
+	return 0;
+}
+
+static struct cx231xx_ops dvb_ops = {
+	.id = CX231XX_DVB,
+	.name = "Cx231xx dvb Extension",
+	.init = dvb_init,
+	.fini = dvb_fini,
+};
+
+static int __init cx231xx_dvb_register(void)
+{
+	return cx231xx_register_extension(&dvb_ops);
+}
+
+static void __exit cx231xx_dvb_unregister(void)
+{
+	cx231xx_unregister_extension(&dvb_ops);
+}
+
+module_init(cx231xx_dvb_register);
+module_exit(cx231xx_dvb_unregister);

drivers/media/usb/cx231xx/cx231xx-i2c.c

@@ -0,0 +1,541 @@
+/*
+   cx231xx-i2c.c - driver for Conexant Cx23100/101/102 USB video capture devices
+
+   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+		Based on em28xx driver
+		Based on Cx23885 driver
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <media/v4l2-common.h>
+#include <media/tuner.h>
+
+#include "cx231xx.h"
+
+/* ----------------------------------------------------------- */
+
+static unsigned int i2c_scan;
+module_param(i2c_scan, int, 0444);
+MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time");
+
+static unsigned int i2c_debug;
+module_param(i2c_debug, int, 0644);
+MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]");
+
+#define dprintk1(lvl, fmt, args...)			\
+do {							\
+	if (i2c_debug >= lvl) {				\
+		printk(fmt, ##args);			\
+		}					\
+} while (0)
+
+#define dprintk2(lvl, fmt, args...)			\
+do {							\
+	if (i2c_debug >= lvl) {				\
+		printk(KERN_DEBUG "%s at %s: " fmt,	\
+		       dev->name, __func__ , ##args);	\
+      } 						\
+} while (0)
+
+static inline bool is_tuner(struct cx231xx *dev, struct cx231xx_i2c *bus,
+			const struct i2c_msg *msg, int tuner_type)
+{
+	if (bus->nr != dev->board.tuner_i2c_master)
+		return false;
+
+	if (msg->addr != dev->board.tuner_addr)
+		return false;
+
+	if (dev->tuner_type != tuner_type)
+		return false;
+
+	return true;
+}
+
+/*
+ * cx231xx_i2c_send_bytes()
+ */
+static int cx231xx_i2c_send_bytes(struct i2c_adapter *i2c_adap,
+				  const struct i2c_msg *msg)
+{
+	struct cx231xx_i2c *bus = i2c_adap->algo_data;
+	struct cx231xx *dev = bus->dev;
+	struct cx231xx_i2c_xfer_data req_data;
+	int status = 0;
+	u16 size = 0;
+	u8 loop = 0;
+	u8 saddr_len = 1;
+	u8 *buf_ptr = NULL;
+	u16 saddr = 0;
+	u8 need_gpio = 0;
+
+	if (is_tuner(dev, bus, msg, TUNER_XC5000)) {
+		size = msg->len;
+
+		if (size == 2) {	/* register write sub addr */
+			/* Just writing sub address will cause problem
+			* to XC5000. So ignore the request */
+			return 0;
+		} else if (size == 4) {	/* register write with sub addr */
+			if (msg->len >= 2)
+				saddr = msg->buf[0] << 8 | msg->buf[1];
+			else if (msg->len == 1)
+				saddr = msg->buf[0];
+
+			switch (saddr) {
+			case 0x0000:	/* start tuner calibration mode */
+				need_gpio = 1;
+				/* FW Loading is done */
+				dev->xc_fw_load_done = 1;
+				break;
+			case 0x000D:	/* Set signal source */
+			case 0x0001:	/* Set TV standard - Video */
+			case 0x0002:	/* Set TV standard - Audio */
+			case 0x0003:	/* Set RF Frequency */
+				need_gpio = 1;
+				break;
+			default:
+				if (dev->xc_fw_load_done)
+					need_gpio = 1;
+				break;
+			}
+
+			if (need_gpio) {
+				dprintk1(1,
+				"GPIO WRITE: addr 0x%x, len %d, saddr 0x%x\n",
+				msg->addr, msg->len, saddr);
+
+				return dev->cx231xx_gpio_i2c_write(dev,
+								   msg->addr,
+								   msg->buf,
+								   msg->len);
+			}
+		}
+
+		/* special case for Xc5000 tuner case */
+		saddr_len = 1;
+
+		/* adjust the length to correct length */
+		size -= saddr_len;
+		buf_ptr = (u8 *) (msg->buf + 1);
+
+		do {
+			/* prepare xfer_data struct */
+			req_data.dev_addr = msg->addr;
+			req_data.direction = msg->flags;
+			req_data.saddr_len = saddr_len;
+			req_data.saddr_dat = msg->buf[0];
+			req_data.buf_size = size > 16 ? 16 : size;
+			req_data.p_buffer = (u8 *) (buf_ptr + loop * 16);
+
+			bus->i2c_nostop = (size > 16) ? 1 : 0;
+			bus->i2c_reserve = (loop == 0) ? 0 : 1;
+
+			/* usb send command */
+			status = dev->cx231xx_send_usb_command(bus, &req_data);
+			loop++;
+
+			if (size >= 16)
+				size -= 16;
+			else
+				size = 0;
+
+		} while (size > 0);
+
+		bus->i2c_nostop = 0;
+		bus->i2c_reserve = 0;
+
+	} else {		/* regular case */
+
+		/* prepare xfer_data struct */
+		req_data.dev_addr = msg->addr;
+		req_data.direction = msg->flags;
+		req_data.saddr_len = 0;
+		req_data.saddr_dat = 0;
+		req_data.buf_size = msg->len;
+		req_data.p_buffer = msg->buf;
+
+		/* usb send command */
+		status = dev->cx231xx_send_usb_command(bus, &req_data);
+	}
+
+	return status < 0 ? status : 0;
+}
+
+/*
+ * cx231xx_i2c_recv_bytes()
+ * read a byte from the i2c device
+ */
+static int cx231xx_i2c_recv_bytes(struct i2c_adapter *i2c_adap,
+				  const struct i2c_msg *msg)
+{
+	struct cx231xx_i2c *bus = i2c_adap->algo_data;
+	struct cx231xx *dev = bus->dev;
+	struct cx231xx_i2c_xfer_data req_data;
+	int status = 0;
+	u16 saddr = 0;
+	u8 need_gpio = 0;
+
+	if (is_tuner(dev, bus, msg, TUNER_XC5000)) {
+		if (msg->len == 2)
+			saddr = msg->buf[0] << 8 | msg->buf[1];
+		else if (msg->len == 1)
+			saddr = msg->buf[0];
+
+		if (dev->xc_fw_load_done) {
+
+			switch (saddr) {
+			case 0x0009:	/* BUSY check */
+				dprintk1(1,
+				"GPIO R E A D: Special case BUSY check \n");
+				/*Try read BUSY register, just set it to zero*/
+				msg->buf[0] = 0;
+				if (msg->len == 2)
+					msg->buf[1] = 0;
+				return 0;
+			case 0x0004:	/* read Lock status */
+				need_gpio = 1;
+				break;
+
+			}
+
+			if (need_gpio) {
+				/* this is a special case to handle Xceive tuner
+				clock stretch issue with gpio based I2C */
+
+				dprintk1(1,
+				"GPIO R E A D: addr 0x%x, len %d, saddr 0x%x\n",
+				msg->addr, msg->len,
+				msg->buf[0] << 8 | msg->buf[1]);
+
+				status =
+				    dev->cx231xx_gpio_i2c_write(dev, msg->addr,
+								msg->buf,
+								msg->len);
+				status =
+				    dev->cx231xx_gpio_i2c_read(dev, msg->addr,
+							       msg->buf,
+							       msg->len);
+				return status;
+			}
+		}
+
+		/* prepare xfer_data struct */
+		req_data.dev_addr = msg->addr;
+		req_data.direction = msg->flags;
+		req_data.saddr_len = msg->len;
+		req_data.saddr_dat = msg->buf[0] << 8 | msg->buf[1];
+		req_data.buf_size = msg->len;
+		req_data.p_buffer = msg->buf;
+
+		/* usb send command */
+		status = dev->cx231xx_send_usb_command(bus, &req_data);
+
+	} else {
+
+		/* prepare xfer_data struct */
+		req_data.dev_addr = msg->addr;
+		req_data.direction = msg->flags;
+		req_data.saddr_len = 0;
+		req_data.saddr_dat = 0;
+		req_data.buf_size = msg->len;
+		req_data.p_buffer = msg->buf;
+
+		/* usb send command */
+		status = dev->cx231xx_send_usb_command(bus, &req_data);
+	}
+
+	return status < 0 ? status : 0;
+}
+
+/*
+ * cx231xx_i2c_recv_bytes_with_saddr()
+ * read a byte from the i2c device
+ */
+static int cx231xx_i2c_recv_bytes_with_saddr(struct i2c_adapter *i2c_adap,
+					     const struct i2c_msg *msg1,
+					     const struct i2c_msg *msg2)
+{
+	struct cx231xx_i2c *bus = i2c_adap->algo_data;
+	struct cx231xx *dev = bus->dev;
+	struct cx231xx_i2c_xfer_data req_data;
+	int status = 0;
+	u16 saddr = 0;
+	u8 need_gpio = 0;
+
+	if (msg1->len == 2)
+		saddr = msg1->buf[0] << 8 | msg1->buf[1];
+	else if (msg1->len == 1)
+		saddr = msg1->buf[0];
+
+	if (is_tuner(dev, bus, msg2, TUNER_XC5000)) {
+		if ((msg2->len < 16)) {
+
+			dprintk1(1,
+			"i2c_read: addr 0x%x, len %d, saddr 0x%x, len %d\n",
+			msg2->addr, msg2->len, saddr, msg1->len);
+
+			switch (saddr) {
+			case 0x0008:	/* read FW load status */
+				need_gpio = 1;
+				break;
+			case 0x0004:	/* read Lock status */
+				need_gpio = 1;
+				break;
+			}
+
+			if (need_gpio) {
+				status =
+				    dev->cx231xx_gpio_i2c_write(dev, msg1->addr,
+								msg1->buf,
+								msg1->len);
+				status =
+				    dev->cx231xx_gpio_i2c_read(dev, msg2->addr,
+							       msg2->buf,
+							       msg2->len);
+				return status;
+			}
+		}
+	}
+
+	/* prepare xfer_data struct */
+	req_data.dev_addr = msg2->addr;
+	req_data.direction = msg2->flags;
+	req_data.saddr_len = msg1->len;
+	req_data.saddr_dat = saddr;
+	req_data.buf_size = msg2->len;
+	req_data.p_buffer = msg2->buf;
+
+	/* usb send command */
+	status = dev->cx231xx_send_usb_command(bus, &req_data);
+
+	return status < 0 ? status : 0;
+}
+
+/*
+ * cx231xx_i2c_check_for_device()
+ * check if there is a i2c_device at the supplied address
+ */
+static int cx231xx_i2c_check_for_device(struct i2c_adapter *i2c_adap,
+					const struct i2c_msg *msg)
+{
+	struct cx231xx_i2c *bus = i2c_adap->algo_data;
+	struct cx231xx *dev = bus->dev;
+	struct cx231xx_i2c_xfer_data req_data;
+	int status = 0;
+
+	/* prepare xfer_data struct */
+	req_data.dev_addr = msg->addr;
+	req_data.direction = msg->flags;
+	req_data.saddr_len = 0;
+	req_data.saddr_dat = 0;
+	req_data.buf_size = 0;
+	req_data.p_buffer = NULL;
+
+	/* usb send command */
+	status = dev->cx231xx_send_usb_command(bus, &req_data);
+
+	return status < 0 ? status : 0;
+}
+
+/*
+ * cx231xx_i2c_xfer()
+ * the main i2c transfer function
+ */
+static int cx231xx_i2c_xfer(struct i2c_adapter *i2c_adap,
+			    struct i2c_msg msgs[], int num)
+{
+	struct cx231xx_i2c *bus = i2c_adap->algo_data;
+	struct cx231xx *dev = bus->dev;
+	int addr, rc, i, byte;
+
+	if (num <= 0)
+		return 0;
+	mutex_lock(&dev->i2c_lock);
+	for (i = 0; i < num; i++) {
+
+		addr = msgs[i].addr;
+
+		dprintk2(2, "%s %s addr=0x%x len=%d:",
+			 (msgs[i].flags & I2C_M_RD) ? "read" : "write",
+			 i == num - 1 ? "stop" : "nonstop", addr, msgs[i].len);
+		if (!msgs[i].len) {
+			/* no len: check only for device presence */
+			rc = cx231xx_i2c_check_for_device(i2c_adap, &msgs[i]);
+			if (rc < 0) {
+				dprintk2(2, " no device\n");
+				mutex_unlock(&dev->i2c_lock);
+				return rc;
+			}
+
+		} else if (msgs[i].flags & I2C_M_RD) {
+			/* read bytes */
+			rc = cx231xx_i2c_recv_bytes(i2c_adap, &msgs[i]);
+			if (i2c_debug >= 2) {
+				for (byte = 0; byte < msgs[i].len; byte++)
+					printk(KERN_CONT " %02x", msgs[i].buf[byte]);
+			}
+		} else if (i + 1 < num && (msgs[i + 1].flags & I2C_M_RD) &&
+			   msgs[i].addr == msgs[i + 1].addr
+			   && (msgs[i].len <= 2) && (bus->nr < 3)) {
+			/* write bytes */
+			if (i2c_debug >= 2) {
+				for (byte = 0; byte < msgs[i].len; byte++)
+					printk(KERN_CONT " %02x", msgs[i].buf[byte]);
+				printk(KERN_CONT "\n");
+			}
+			/* read bytes */
+			dprintk2(2, "plus %s %s addr=0x%x len=%d:",
+				(msgs[i+1].flags & I2C_M_RD) ? "read" : "write",
+				i+1 == num - 1 ? "stop" : "nonstop", addr, msgs[i+1].len);
+			rc = cx231xx_i2c_recv_bytes_with_saddr(i2c_adap,
+							       &msgs[i],
+							       &msgs[i + 1]);
+			if (i2c_debug >= 2) {
+				for (byte = 0; byte < msgs[i+1].len; byte++)
+					printk(KERN_CONT " %02x", msgs[i+1].buf[byte]);
+			}
+			i++;
+		} else {
+			/* write bytes */
+			if (i2c_debug >= 2) {
+				for (byte = 0; byte < msgs[i].len; byte++)
+					printk(KERN_CONT " %02x", msgs[i].buf[byte]);
+			}
+			rc = cx231xx_i2c_send_bytes(i2c_adap, &msgs[i]);
+		}
+		if (rc < 0)
+			goto err;
+		if (i2c_debug >= 2)
+			printk(KERN_CONT "\n");
+	}
+	mutex_unlock(&dev->i2c_lock);
+	return num;
+err:
+	dprintk2(2, " ERROR: %i\n", rc);
+	mutex_unlock(&dev->i2c_lock);
+	return rc;
+}
+
+/* ----------------------------------------------------------- */
+
+/*
+ * functionality()
+ */
+static u32 functionality(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm cx231xx_algo = {
+	.master_xfer = cx231xx_i2c_xfer,
+	.functionality = functionality,
+};
+
+static struct i2c_adapter cx231xx_adap_template = {
+	.owner = THIS_MODULE,
+	.name = "cx231xx",
+	.algo = &cx231xx_algo,
+};
+
+static struct i2c_client cx231xx_client_template = {
+	.name = "cx231xx internal",
+};
+
+/* ----------------------------------------------------------- */
+
+/*
+ * i2c_devs
+ * incomplete list of known devices
+ */
+static char *i2c_devs[128] = {
+	[0x60 >> 1] = "colibri",
+	[0x88 >> 1] = "hammerhead",
+	[0x8e >> 1] = "CIR",
+	[0x32 >> 1] = "GeminiIII",
+	[0x02 >> 1] = "Aquarius",
+	[0xa0 >> 1] = "eeprom",
+	[0xc0 >> 1] = "tuner",
+	[0xc2 >> 1] = "tuner",
+};
+
+/*
+ * cx231xx_do_i2c_scan()
+ * check i2c address range for devices
+ */
+void cx231xx_do_i2c_scan(struct cx231xx *dev, struct i2c_client *c)
+{
+	unsigned char buf;
+	int i, rc;
+
+	cx231xx_info(": Checking for I2C devices ..\n");
+	for (i = 0; i < 128; i++) {
+		c->addr = i;
+		rc = i2c_master_recv(c, &buf, 0);
+		if (rc < 0)
+			continue;
+		cx231xx_info("%s: i2c scan: found device @ 0x%x  [%s]\n",
+			     dev->name, i << 1,
+			     i2c_devs[i] ? i2c_devs[i] : "???");
+	}
+	cx231xx_info(": Completed Checking for I2C devices.\n");
+}
+
+/*
+ * cx231xx_i2c_register()
+ * register i2c bus
+ */
+int cx231xx_i2c_register(struct cx231xx_i2c *bus)
+{
+	struct cx231xx *dev = bus->dev;
+
+	BUG_ON(!dev->cx231xx_send_usb_command);
+
+	bus->i2c_adap = cx231xx_adap_template;
+	bus->i2c_client = cx231xx_client_template;
+	bus->i2c_adap.dev.parent = &dev->udev->dev;
+
+	strlcpy(bus->i2c_adap.name, bus->dev->name, sizeof(bus->i2c_adap.name));
+
+	bus->i2c_adap.algo_data = bus;
+	i2c_set_adapdata(&bus->i2c_adap, &dev->v4l2_dev);
+	i2c_add_adapter(&bus->i2c_adap);
+
+	bus->i2c_client.adapter = &bus->i2c_adap;
+
+	if (0 == bus->i2c_rc) {
+		if (i2c_scan)
+			cx231xx_do_i2c_scan(dev, &bus->i2c_client);
+	} else
+		cx231xx_warn("%s: i2c bus %d register FAILED\n",
+			     dev->name, bus->nr);
+
+	return bus->i2c_rc;
+}
+
+/*
+ * cx231xx_i2c_unregister()
+ * unregister i2c_bus
+ */
+int cx231xx_i2c_unregister(struct cx231xx_i2c *bus)
+{
+	i2c_del_adapter(&bus->i2c_adap);
+	return 0;
+}

drivers/media/usb/cx231xx/cx231xx-input.c

@@ -0,0 +1,113 @@
+/*
+ *   cx231xx IR glue driver
+ *
+ *   Copyright (C) 2010 Mauro Carvalho Chehab
+ *
+ *   Polaris (cx231xx) has its support for IR's with a design close to MCE.
+ *   however, a few designs are using an external I2C chip for IR, instead
+ *   of using the one provided by the chip.
+ *   This driver provides support for those extra devices
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License as
+ *   published by the Free Software Foundation version 2.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *   General Public License for more details.
+ */
+
+#include "cx231xx.h"
+#include <linux/usb.h>
+#include <linux/slab.h>
+#include <linux/bitrev.h>
+
+#define MODULE_NAME "cx231xx-input"
+
+static int get_key_isdbt(struct IR_i2c *ir, enum rc_type *protocol,
+			 u32 *pscancode, u8 *toggle)
+{
+	int	rc;
+	u8	cmd, scancode;
+
+	dev_dbg(&ir->rc->input_dev->dev, "%s\n", __func__);
+
+		/* poll IR chip */
+	rc = i2c_master_recv(ir->c, &cmd, 1);
+	if (rc < 0)
+		return rc;
+	if (rc != 1)
+		return -EIO;
+
+	/* it seems that 0xFE indicates that a button is still hold
+	   down, while 0xff indicates that no button is hold
+	   down. 0xfe sequences are sometimes interrupted by 0xFF */
+
+	if (cmd == 0xff)
+		return 0;
+
+	scancode = bitrev8(cmd);
+
+	dev_dbg(&ir->rc->input_dev->dev, "cmd %02x, scan = %02x\n",
+		cmd, scancode);
+
+	*protocol = RC_TYPE_OTHER;
+	*pscancode = scancode;
+	*toggle = 0;
+	return 1;
+}
+
+int cx231xx_ir_init(struct cx231xx *dev)
+{
+	struct i2c_board_info info;
+	u8 ir_i2c_bus;
+
+	dev_dbg(&dev->udev->dev, "%s\n", __func__);
+
+	/* Only initialize if a rc keycode map is defined */
+	if (!cx231xx_boards[dev->model].rc_map_name)
+		return -ENODEV;
+
+	request_module("ir-kbd-i2c");
+
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	memset(&dev->init_data, 0, sizeof(dev->init_data));
+	dev->init_data.rc_dev = rc_allocate_device();
+	if (!dev->init_data.rc_dev)
+		return -ENOMEM;
+
+	dev->init_data.name = cx231xx_boards[dev->model].name;
+
+	strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
+	info.platform_data = &dev->init_data;
+
+	/*
+	 * Board-dependent values
+	 *
+	 * For now, there's just one type of hardware design using
+	 * an i2c device.
+	 */
+	dev->init_data.get_key = get_key_isdbt;
+	dev->init_data.ir_codes = cx231xx_boards[dev->model].rc_map_name;
+	/* The i2c micro-controller only outputs the cmd part of NEC protocol */
+	dev->init_data.rc_dev->scancode_mask = 0xff;
+	dev->init_data.rc_dev->driver_name = "cx231xx";
+	dev->init_data.type = RC_BIT_NEC;
+	info.addr = 0x30;
+
+	/* Load and bind ir-kbd-i2c */
+	ir_i2c_bus = cx231xx_boards[dev->model].ir_i2c_master;
+	dev_dbg(&dev->udev->dev, "Trying to bind ir at bus %d, addr 0x%02x\n",
+		ir_i2c_bus, info.addr);
+	dev->ir_i2c_client = i2c_new_device(&dev->i2c_bus[ir_i2c_bus].i2c_adap, &info);
+
+	return 0;
+}
+
+void cx231xx_ir_exit(struct cx231xx *dev)
+{
+	if (dev->ir_i2c_client)
+		i2c_unregister_device(dev->ir_i2c_client);
+	dev->ir_i2c_client = NULL;
+}

drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c

@@ -0,0 +1,799 @@
+/*
+   cx231xx-pcb-config.c - driver for Conexant
+		Cx23100/101/102 USB video capture devices
+
+   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "cx231xx.h"
+#include "cx231xx-conf-reg.h"
+
+static unsigned int pcb_debug;
+module_param(pcb_debug, int, 0644);
+MODULE_PARM_DESC(pcb_debug, "enable pcb config debug messages [video]");
+
+/******************************************************************************/
+
+static struct pcb_config cx231xx_Scenario[] = {
+	{
+	 INDEX_SELFPOWER_DIGITAL_ONLY,	/* index */
+	 USB_SELF_POWER,	/* power_type */
+	 0,			/* speed , not decide yet */
+	 MOD_DIGITAL,		/* mode */
+	 SOURCE_TS_BDA,		/* ts1_source, digital tv only */
+	 NOT_SUPPORTED,		/* ts2_source  */
+	 NOT_SUPPORTED,		/* analog source */
+
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index   */
+	 0,			/* external_index */
+
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    NOT_SUPPORTED,	/* AUDIO */
+	    NOT_SUPPORTED,	/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   ,
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 /* full-speed config */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    NOT_SUPPORTED,	/* AUDIO */
+	    NOT_SUPPORTED,	/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+
+	{
+	 INDEX_SELFPOWER_DUAL_DIGITAL,	/* index */
+	 USB_SELF_POWER,	/* power_type */
+	 0,			/* speed , not decide yet */
+	 MOD_DIGITAL,		/* mode */
+	 SOURCE_TS_BDA,		/* ts1_source, digital tv only */
+	 0,			/* ts2_source,need update from register */
+	 NOT_SUPPORTED,		/* analog source */
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    2,			/* TS2 index */
+	    NOT_SUPPORTED,	/* AUDIO */
+	    NOT_SUPPORTED,	/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 /* full-speed */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    2,			/* TS2 index */
+	    NOT_SUPPORTED,	/* AUDIO */
+	    NOT_SUPPORTED,	/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+
+	{
+	 INDEX_SELFPOWER_ANALOG_ONLY,	/* index */
+	 USB_SELF_POWER,	/* power_type */
+	 0,			/* speed , not decide yet */
+	 MOD_ANALOG | MOD_DIF | MOD_EXTERNAL,	/* mode ,analog tv only */
+	 NOT_SUPPORTED,		/* ts1_source, NOT SUPPORT */
+	 NOT_SUPPORTED,		/* ts2_source,NOT SUPPORT */
+	 0,			/* analog source, need update */
+
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    NOT_SUPPORTED,	/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    1,			/* AUDIO */
+	    2,			/* VIDEO */
+	    3,			/* VANC */
+	    4,			/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 /* full-speed */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    NOT_SUPPORTED,	/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    1,			/* AUDIO */
+	    2,			/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+
+	{
+	 INDEX_SELFPOWER_DUAL,	/* index */
+	 USB_SELF_POWER,	/* power_type */
+	 0,			/* speed , not decide yet */
+	 /* mode ,analog tv and digital path */
+	 MOD_ANALOG | MOD_DIF | MOD_DIGITAL | MOD_EXTERNAL,
+	 0,			/* ts1_source,will update in register */
+	 NOT_SUPPORTED,		/* ts2_source,NOT SUPPORT */
+	 0,			/* analog source need update */
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    2,			/* AUDIO */
+	    3,			/* VIDEO */
+	    4,			/* VANC */
+	    5,			/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 /* full-speed */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    2,			/* AUDIO */
+	    3,			/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+
+	{
+	 INDEX_SELFPOWER_TRIPLE,	/* index */
+	 USB_SELF_POWER,	/* power_type */
+	 0,			/* speed , not decide yet */
+	 /* mode ,analog tv and digital path */
+	 MOD_ANALOG | MOD_DIF | MOD_DIGITAL | MOD_EXTERNAL,
+	 0,			/* ts1_source, update in register */
+	 0,			/* ts2_source,update in register */
+	 0,			/* analog source, need update */
+
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    2,			/* TS2 index */
+	    3,			/* AUDIO */
+	    4,			/* VIDEO */
+	    5,			/* VANC */
+	    6,			/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 /* full-speed */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    2,			/* TS2 index */
+	    3,			/* AUDIO */
+	    4,			/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+
+	{
+	 INDEX_SELFPOWER_COMPRESSOR,	/* index */
+	 USB_SELF_POWER,	/* power_type */
+	 0,			/* speed , not decide yet */
+	 /* mode ,analog tv AND DIGITAL path */
+	 MOD_ANALOG | MOD_DIF | MOD_DIGITAL | MOD_EXTERNAL,
+	 NOT_SUPPORTED,		/* ts1_source, disable */
+	 SOURCE_TS_BDA,		/* ts2_source */
+	 0,			/* analog source,need update */
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    NOT_SUPPORTED,	/* ts1 index */
+	    1,			/* TS2 index */
+	    2,			/* AUDIO */
+	    3,			/* VIDEO */
+	    4,			/* VANC */
+	    5,			/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 /* full-speed  */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    NOT_SUPPORTED,	/* ts1 index */
+	    1,			/* TS2 index */
+	    2,			/* AUDIO */
+	    3,			/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+
+	{
+	 INDEX_BUSPOWER_DIGITAL_ONLY,	/* index */
+	 USB_BUS_POWER,		/* power_type */
+	 0,			/* speed , not decide yet */
+	 MOD_DIGITAL,		/* mode ,analog tv AND DIGITAL path */
+	 SOURCE_TS_BDA,		/* ts1_source, disable */
+	 NOT_SUPPORTED,		/* ts2_source */
+	 NOT_SUPPORTED,		/* analog source */
+
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index  = 2 */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    NOT_SUPPORTED,	/* AUDIO */
+	    NOT_SUPPORTED,	/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 /* full-speed */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index  = 2 */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    NOT_SUPPORTED,	/* AUDIO */
+	    NOT_SUPPORTED,	/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+	{
+	 INDEX_BUSPOWER_ANALOG_ONLY,	/* index */
+	 USB_BUS_POWER,		/* power_type */
+	 0,			/* speed , not decide yet */
+	 MOD_ANALOG,		/* mode ,analog tv AND DIGITAL path */
+	 NOT_SUPPORTED,		/* ts1_source, disable */
+	 NOT_SUPPORTED,		/* ts2_source */
+	 SOURCE_ANALOG,		/* analog source--analog */
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    NOT_SUPPORTED,	/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    1,			/* AUDIO */
+	    2,			/* VIDEO */
+	    3,			/* VANC */
+	    4,			/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 {			/* full-speed */
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    NOT_SUPPORTED,	/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    1,			/* AUDIO */
+	    2,			/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+	{
+	 INDEX_BUSPOWER_DIF_ONLY,	/* index */
+	 USB_BUS_POWER,		/* power_type */
+	 0,			/* speed , not decide yet */
+	 /* mode ,analog tv AND DIGITAL path */
+	 MOD_DIF | MOD_ANALOG | MOD_DIGITAL | MOD_EXTERNAL,
+	 SOURCE_TS_BDA,		/* ts1_source, disable */
+	 NOT_SUPPORTED,		/* ts2_source */
+	 SOURCE_DIF | SOURCE_ANALOG | SOURCE_EXTERNAL,	/* analog source, dif */
+	 0,			/* digital_index  */
+	 0,			/* analog index */
+	 0,			/* dif_index */
+	 0,			/* external_index */
+	 1,			/* only one configuration */
+	 {
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    2,			/* AUDIO */
+	    3,			/* VIDEO */
+	    4,			/* VANC */
+	    5,			/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 ,
+	 {			/* full speed */
+	  {
+	   0,			/* config index */
+	   {
+	    0,			/* interrupt ep index */
+	    1,			/* ts1 index */
+	    NOT_SUPPORTED,	/* TS2 index */
+	    2,			/* AUDIO */
+	    3,			/* VIDEO */
+	    NOT_SUPPORTED,	/* VANC */
+	    NOT_SUPPORTED,	/* HANC */
+	    NOT_SUPPORTED	/* ir_index */
+	    }
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  ,
+	  {NOT_SUPPORTED, {NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED, NOT_SUPPORTED, NOT_SUPPORTED,
+			   NOT_SUPPORTED}
+	   }
+	  }
+	 }
+	,
+
+};
+
+/*****************************************************************/
+
+int initialize_cx231xx(struct cx231xx *dev)
+{
+	int retval;
+	u32 config_info = 0;
+	struct pcb_config *p_pcb_info;
+	u8 usb_speed = 1;	/* from register,1--HS, 0--FS  */
+	u8 data[4] = { 0, 0, 0, 0 };
+	u32 ts1_source = 0;
+	u32 ts2_source = 0;
+	u32 analog_source = 0;
+	u8 _current_scenario_idx = 0xff;
+
+	ts1_source = SOURCE_TS_BDA;
+	ts2_source = SOURCE_TS_BDA;
+
+	/* read board config register to find out which
+	pcb config it is related to */
+	retval = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, BOARD_CFG_STAT,
+				       data, 4);
+	if (retval < 0)
+		return retval;
+
+	config_info = le32_to_cpu(*((__le32 *)data));
+	usb_speed = (u8) (config_info & 0x1);
+
+	/* Verify this device belongs to Bus power or Self power device */
+	if (config_info & BUS_POWER) {	/* bus-power */
+		switch (config_info & BUSPOWER_MASK) {
+		case TS1_PORT | BUS_POWER:
+			cx231xx_Scenario[INDEX_BUSPOWER_DIGITAL_ONLY].speed =
+			    usb_speed;
+			p_pcb_info =
+			    &cx231xx_Scenario[INDEX_BUSPOWER_DIGITAL_ONLY];
+			_current_scenario_idx = INDEX_BUSPOWER_DIGITAL_ONLY;
+			break;
+		case AVDEC_ENABLE | BUS_POWER:
+			cx231xx_Scenario[INDEX_BUSPOWER_ANALOG_ONLY].speed =
+			    usb_speed;
+			p_pcb_info =
+			    &cx231xx_Scenario[INDEX_BUSPOWER_ANALOG_ONLY];
+			_current_scenario_idx = INDEX_BUSPOWER_ANALOG_ONLY;
+			break;
+		case AVDEC_ENABLE | BUS_POWER | TS1_PORT:
+			cx231xx_Scenario[INDEX_BUSPOWER_DIF_ONLY].speed =
+			    usb_speed;
+			p_pcb_info = &cx231xx_Scenario[INDEX_BUSPOWER_DIF_ONLY];
+			_current_scenario_idx = INDEX_BUSPOWER_DIF_ONLY;
+			break;
+		default:
+			cx231xx_info("bad config in buspower!!!!\n");
+			cx231xx_info("config_info=%x\n",
+				     (config_info & BUSPOWER_MASK));
+			return 1;
+		}
+	} else {		/* self-power */
+
+		switch (config_info & SELFPOWER_MASK) {
+		case TS1_PORT | SELF_POWER:
+			cx231xx_Scenario[INDEX_SELFPOWER_DIGITAL_ONLY].speed =
+			    usb_speed;
+			p_pcb_info =
+			    &cx231xx_Scenario[INDEX_SELFPOWER_DIGITAL_ONLY];
+			_current_scenario_idx = INDEX_SELFPOWER_DIGITAL_ONLY;
+			break;
+		case TS1_TS2_PORT | SELF_POWER:
+			cx231xx_Scenario[INDEX_SELFPOWER_DUAL_DIGITAL].speed =
+			    usb_speed;
+			cx231xx_Scenario[INDEX_SELFPOWER_DUAL_DIGITAL].
+			    ts2_source = ts2_source;
+			p_pcb_info =
+			    &cx231xx_Scenario[INDEX_SELFPOWER_DUAL_DIGITAL];
+			_current_scenario_idx = INDEX_SELFPOWER_DUAL_DIGITAL;
+			break;
+		case AVDEC_ENABLE | SELF_POWER:
+			cx231xx_Scenario[INDEX_SELFPOWER_ANALOG_ONLY].speed =
+			    usb_speed;
+			cx231xx_Scenario[INDEX_SELFPOWER_ANALOG_ONLY].
+			    analog_source = analog_source;
+			p_pcb_info =
+			    &cx231xx_Scenario[INDEX_SELFPOWER_ANALOG_ONLY];
+			_current_scenario_idx = INDEX_SELFPOWER_ANALOG_ONLY;
+			break;
+		case AVDEC_ENABLE | TS1_PORT | SELF_POWER:
+			cx231xx_Scenario[INDEX_SELFPOWER_DUAL].speed =
+			    usb_speed;
+			cx231xx_Scenario[INDEX_SELFPOWER_DUAL].ts1_source =
+			    ts1_source;
+			cx231xx_Scenario[INDEX_SELFPOWER_DUAL].analog_source =
+			    analog_source;
+			p_pcb_info = &cx231xx_Scenario[INDEX_SELFPOWER_DUAL];
+			_current_scenario_idx = INDEX_SELFPOWER_DUAL;
+			break;
+		case AVDEC_ENABLE | TS1_TS2_PORT | SELF_POWER:
+			cx231xx_Scenario[INDEX_SELFPOWER_TRIPLE].speed =
+			    usb_speed;
+			cx231xx_Scenario[INDEX_SELFPOWER_TRIPLE].ts1_source =
+			    ts1_source;
+			cx231xx_Scenario[INDEX_SELFPOWER_TRIPLE].ts2_source =
+			    ts2_source;
+			cx231xx_Scenario[INDEX_SELFPOWER_TRIPLE].analog_source =
+			    analog_source;
+			p_pcb_info = &cx231xx_Scenario[INDEX_SELFPOWER_TRIPLE];
+			_current_scenario_idx = INDEX_SELFPOWER_TRIPLE;
+			break;
+		case AVDEC_ENABLE | TS1VIP_TS2_PORT | SELF_POWER:
+			cx231xx_Scenario[INDEX_SELFPOWER_COMPRESSOR].speed =
+			    usb_speed;
+			cx231xx_Scenario[INDEX_SELFPOWER_COMPRESSOR].
+			    analog_source = analog_source;
+			p_pcb_info =
+			    &cx231xx_Scenario[INDEX_SELFPOWER_COMPRESSOR];
+			_current_scenario_idx = INDEX_SELFPOWER_COMPRESSOR;
+			break;
+		default:
+			cx231xx_info("bad senario!!!!!\n");
+			cx231xx_info("config_info=%x\n",
+				     (config_info & SELFPOWER_MASK));
+			return -ENODEV;
+		}
+	}
+
+	dev->current_scenario_idx = _current_scenario_idx;
+
+	memcpy(&dev->current_pcb_config, p_pcb_info,
+		   sizeof(struct pcb_config));
+
+	if (pcb_debug) {
+		cx231xx_info("SC(0x00) register = 0x%x\n", config_info);
+		cx231xx_info("scenario %d\n",
+			    (dev->current_pcb_config.index) + 1);
+		cx231xx_info("type=%x\n", dev->current_pcb_config.type);
+		cx231xx_info("mode=%x\n", dev->current_pcb_config.mode);
+		cx231xx_info("speed=%x\n", dev->current_pcb_config.speed);
+		cx231xx_info("ts1_source=%x\n",
+			     dev->current_pcb_config.ts1_source);
+		cx231xx_info("ts2_source=%x\n",
+			     dev->current_pcb_config.ts2_source);
+		cx231xx_info("analog_source=%x\n",
+			     dev->current_pcb_config.analog_source);
+	}
+
+	return 0;
+}

drivers/media/usb/cx231xx/cx231xx-pcb-cfg.h

@@ -0,0 +1,226 @@
+/*
+   cx231xx-pcb-cfg.h - driver for Conexant
+		Cx23100/101/102 USB video capture devices
+
+   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _PCB_CONFIG_H_
+#define _PCB_CONFIG_H_
+
+#include <linux/init.h>
+#include <linux/module.h>
+
+/***************************************************************************
+				* Class Information *
+***************************************************************************/
+#define CLASS_DEFAULT       0xFF
+
+enum VENDOR_REQUEST_TYPE {
+	/* Set/Get I2C */
+	VRT_SET_I2C0 = 0x0,
+	VRT_SET_I2C1 = 0x1,
+	VRT_SET_I2C2 = 0x2,
+	VRT_GET_I2C0 = 0x4,
+	VRT_GET_I2C1 = 0x5,
+	VRT_GET_I2C2 = 0x6,
+
+	/* Set/Get GPIO */
+	VRT_SET_GPIO = 0x8,
+	VRT_GET_GPIO = 0x9,
+
+	/* Set/Get GPIE */
+	VRT_SET_GPIE = 0xA,
+	VRT_GET_GPIE = 0xB,
+
+	/* Set/Get Register Control/Status */
+	VRT_SET_REGISTER = 0xC,
+	VRT_GET_REGISTER = 0xD,
+
+	/* Get Extended Compat ID Descriptor */
+	VRT_GET_EXTCID_DESC = 0xFF,
+};
+
+enum BYTE_ENABLE_MASK {
+	ENABLE_ONE_BYTE = 0x1,
+	ENABLE_TWE_BYTE = 0x3,
+	ENABLE_THREE_BYTE = 0x7,
+	ENABLE_FOUR_BYTE = 0xF,
+};
+
+#define SPEED_MASK      0x1
+enum USB_SPEED{
+	FULL_SPEED = 0x0,	/* 0: full speed */
+	HIGH_SPEED = 0x1	/* 1: high speed */
+};
+
+#define TS_MASK         0x6
+enum TS_PORT{
+	NO_TS_PORT = 0x0,	/* 2'b00: Neither port used. PCB not a Hybrid,
+				   only offers Analog TV or Video */
+	TS1_PORT = 0x4,		/* 2'b10: TS1 Input (Hybrid mode :
+				Digital or External Analog/Compressed source) */
+	TS1_TS2_PORT = 0x6,	/* 2'b11: TS1 & TS2 Inputs
+				(Dual inputs from Digital and/or
+				External Analog/Compressed sources) */
+	TS1_EXT_CLOCK = 0x6,	/* 2'b11: TS1 & TS2 as selector
+						to external clock */
+	TS1VIP_TS2_PORT = 0x2	/* 2'b01: TS1 used as 656/VIP Output,
+				   TS2 Input (from Compressor) */
+};
+
+#define EAVP_MASK       0x8
+enum EAV_PRESENT{
+	NO_EXTERNAL_AV = 0x0,	/* 0: No External A/V inputs
+						(no need for i2s blcok),
+						Analog Tuner must be present */
+	EXTERNAL_AV = 0x8	/* 1: External A/V inputs
+						present (requires i2s blk) */
+};
+
+#define ATM_MASK        0x30
+enum AT_MODE{
+	DIF_TUNER = 0x30,	/* 2'b11: IF Tuner (requires use of DIF) */
+	BASEBAND_SOUND = 0x20,	/* 2'b10: Baseband Composite &
+						Sound-IF Signals present */
+	NO_TUNER = 0x10		/* 2'b0x: No Analog Tuner present */
+};
+
+#define PWR_SEL_MASK    0x40
+enum POWE_TYPE{
+	SELF_POWER = 0x0,	/* 0: self power */
+	BUS_POWER = 0x40	/* 1: bus power */
+};
+
+enum USB_POWE_TYPE{
+	USB_SELF_POWER = 0,
+	USB_BUS_POWER
+};
+
+#define BO_0_MASK       0x80
+enum AVDEC_STATUS{
+	AVDEC_DISABLE = 0x0,	/* 0: A/V Decoder Disabled */
+	AVDEC_ENABLE = 0x80	/* 1: A/V Decoder Enabled */
+};
+
+#define BO_1_MASK       0x100
+
+#define BUSPOWER_MASK   0xC4	/* for Polaris spec 0.8 */
+#define SELFPOWER_MASK  0x86
+
+/***************************************************************************/
+#define NOT_DECIDE_YET  0xFE
+#define NOT_SUPPORTED   0xFF
+
+/***************************************************************************
+				* for mod field use *
+***************************************************************************/
+#define MOD_DIGITAL     0x1
+#define MOD_ANALOG      0x2
+#define MOD_DIF         0x4
+#define MOD_EXTERNAL    0x8
+#define CAP_ALL_MOD     0x0f
+
+/***************************************************************************
+				* source define *
+***************************************************************************/
+#define SOURCE_DIGITAL          0x1
+#define SOURCE_ANALOG           0x2
+#define SOURCE_DIF              0x4
+#define SOURCE_EXTERNAL         0x8
+#define SOURCE_TS_BDA			0x10
+#define SOURCE_TS_ENCODE		0x20
+#define SOURCE_TS_EXTERNAL   	0x40
+
+/***************************************************************************
+				* interface information define *
+***************************************************************************/
+struct INTERFACE_INFO {
+	u8 interrupt_index;
+	u8 ts1_index;
+	u8 ts2_index;
+	u8 audio_index;
+	u8 video_index;
+	u8 vanc_index;		/* VBI */
+	u8 hanc_index;		/* Sliced CC */
+	u8 ir_index;
+};
+
+enum INDEX_INTERFACE_INFO{
+	INDEX_INTERRUPT = 0x0,
+	INDEX_TS1,
+	INDEX_TS2,
+	INDEX_AUDIO,
+	INDEX_VIDEO,
+	INDEX_VANC,
+	INDEX_HANC,
+	INDEX_IR,
+};
+
+/***************************************************************************
+				* configuration information define *
+***************************************************************************/
+struct CONFIG_INFO {
+	u8 config_index;
+	struct INTERFACE_INFO interface_info;
+};
+
+struct pcb_config {
+	u8 index;
+	u8 type;		/* bus power or self power,
+					   self power--0, bus_power--1 */
+	u8 speed;		/* usb speed, 2.0--1, 1.1--0 */
+	u8 mode;		/* digital , anlog, dif or external A/V */
+	u32 ts1_source;		/* three source -- BDA,External,encode */
+	u32 ts2_source;
+	u32 analog_source;
+	u8 digital_index;	/* bus-power used */
+	u8 analog_index;	/* bus-power used */
+	u8 dif_index;		/* bus-power used */
+	u8 external_index;	/* bus-power used */
+	u8 config_num;		/* current config num, 0,1,2,
+						   for self-power, always 0 */
+	struct CONFIG_INFO hs_config_info[3];
+	struct CONFIG_INFO fs_config_info[3];
+};
+
+enum INDEX_PCB_CONFIG{
+	INDEX_SELFPOWER_DIGITAL_ONLY = 0x0,
+	INDEX_SELFPOWER_DUAL_DIGITAL,
+	INDEX_SELFPOWER_ANALOG_ONLY,
+	INDEX_SELFPOWER_DUAL,
+	INDEX_SELFPOWER_TRIPLE,
+	INDEX_SELFPOWER_COMPRESSOR,
+	INDEX_BUSPOWER_DIGITAL_ONLY,
+	INDEX_BUSPOWER_ANALOG_ONLY,
+	INDEX_BUSPOWER_DIF_ONLY,
+	INDEX_BUSPOWER_EXTERNAL_ONLY,
+	INDEX_BUSPOWER_EXTERNAL_ANALOG,
+	INDEX_BUSPOWER_EXTERNAL_DIF,
+	INDEX_BUSPOWER_EXTERNAL_DIGITAL,
+	INDEX_BUSPOWER_DIGITAL_ANALOG,
+	INDEX_BUSPOWER_DIGITAL_DIF,
+	INDEX_BUSPOWER_DIGITAL_ANALOG_EXTERNAL,
+	INDEX_BUSPOWER_DIGITAL_DIF_EXTERNAL,
+};
+
+/***************************************************************************/
+struct cx231xx;
+
+int initialize_cx231xx(struct cx231xx *p_dev);
+
+#endif

drivers/media/usb/cx231xx/cx231xx-vbi.c

@@ -0,0 +1,706 @@
+/*
+   cx231xx_vbi.c - driver for Conexant Cx23100/101/102 USB video capture devices
+
+   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+	Based on cx88 driver
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/bitmap.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/mm.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/msp3400.h>
+#include <media/tuner.h>
+
+#include "cx231xx.h"
+#include "cx231xx-vbi.h"
+
+static inline void print_err_status(struct cx231xx *dev, int packet, int status)
+{
+	char *errmsg = "Unknown";
+
+	switch (status) {
+	case -ENOENT:
+		errmsg = "unlinked synchronuously";
+		break;
+	case -ECONNRESET:
+		errmsg = "unlinked asynchronuously";
+		break;
+	case -ENOSR:
+		errmsg = "Buffer error (overrun)";
+		break;
+	case -EPIPE:
+		errmsg = "Stalled (device not responding)";
+		break;
+	case -EOVERFLOW:
+		errmsg = "Babble (bad cable?)";
+		break;
+	case -EPROTO:
+		errmsg = "Bit-stuff error (bad cable?)";
+		break;
+	case -EILSEQ:
+		errmsg = "CRC/Timeout (could be anything)";
+		break;
+	case -ETIME:
+		errmsg = "Device does not respond";
+		break;
+	}
+	if (packet < 0) {
+		cx231xx_err("URB status %d [%s].\n", status,
+			    errmsg);
+	} else {
+		cx231xx_err("URB packet %d, status %d [%s].\n",
+			    packet, status, errmsg);
+	}
+}
+
+/*
+ * Controls the isoc copy of each urb packet
+ */
+static inline int cx231xx_isoc_vbi_copy(struct cx231xx *dev, struct urb *urb)
+{
+	struct cx231xx_dmaqueue *dma_q = urb->context;
+	int rc = 1;
+	unsigned char *p_buffer;
+	u32 bytes_parsed = 0, buffer_size = 0;
+	u8 sav_eav = 0;
+
+	if (!dev)
+		return 0;
+
+	if (dev->state & DEV_DISCONNECTED)
+		return 0;
+
+	if (urb->status < 0) {
+		print_err_status(dev, -1, urb->status);
+		if (urb->status == -ENOENT)
+			return 0;
+	}
+
+	/* get buffer pointer and length */
+	p_buffer = urb->transfer_buffer;
+	buffer_size = urb->actual_length;
+
+	if (buffer_size > 0) {
+		bytes_parsed = 0;
+
+		if (dma_q->is_partial_line) {
+			/* Handle the case where we were working on a partial
+			   line */
+			sav_eav = dma_q->last_sav;
+		} else {
+			/* Check for a SAV/EAV overlapping the
+			   buffer boundary */
+
+			sav_eav = cx231xx_find_boundary_SAV_EAV(p_buffer,
+							  dma_q->partial_buf,
+							  &bytes_parsed);
+		}
+
+		sav_eav &= 0xF0;
+		/* Get the first line if we have some portion of an SAV/EAV from
+		   the last buffer or a partial line */
+		if (sav_eav) {
+			bytes_parsed += cx231xx_get_vbi_line(dev, dma_q,
+				sav_eav,		       /* SAV/EAV */
+				p_buffer + bytes_parsed,       /* p_buffer */
+				buffer_size - bytes_parsed);   /* buffer size */
+		}
+
+		/* Now parse data that is completely in this buffer */
+		dma_q->is_partial_line = 0;
+
+		while (bytes_parsed < buffer_size) {
+			u32 bytes_used = 0;
+
+			sav_eav = cx231xx_find_next_SAV_EAV(
+				p_buffer + bytes_parsed,	/* p_buffer */
+				buffer_size - bytes_parsed, /* buffer size */
+				&bytes_used);	/* bytes used to get SAV/EAV */
+
+			bytes_parsed += bytes_used;
+
+			sav_eav &= 0xF0;
+			if (sav_eav && (bytes_parsed < buffer_size)) {
+				bytes_parsed += cx231xx_get_vbi_line(dev,
+					dma_q, sav_eav,	/* SAV/EAV */
+					p_buffer+bytes_parsed, /* p_buffer */
+					buffer_size-bytes_parsed);/*buf size*/
+			}
+		}
+
+		/* Save the last four bytes of the buffer so we can
+		check the buffer boundary condition next time */
+		memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);
+		bytes_parsed = 0;
+	}
+
+	return rc;
+}
+
+/* ------------------------------------------------------------------
+	Vbi buf operations
+   ------------------------------------------------------------------*/
+
+static int
+vbi_buffer_setup(struct videobuf_queue *vq, unsigned int *count,
+		 unsigned int *size)
+{
+	struct cx231xx_fh *fh = vq->priv_data;
+	struct cx231xx *dev = fh->dev;
+	u32 height = 0;
+
+	height = ((dev->norm & V4L2_STD_625_50) ?
+		  PAL_VBI_LINES : NTSC_VBI_LINES);
+
+	*size = (dev->width * height * 2 * 2);
+	if (0 == *count)
+		*count = CX231XX_DEF_VBI_BUF;
+
+	if (*count < CX231XX_MIN_BUF)
+		*count = CX231XX_MIN_BUF;
+
+	return 0;
+}
+
+/* This is called *without* dev->slock held; please keep it that way */
+static void free_buffer(struct videobuf_queue *vq, struct cx231xx_buffer *buf)
+{
+	struct cx231xx_fh *fh = vq->priv_data;
+	struct cx231xx *dev = fh->dev;
+	unsigned long flags = 0;
+	if (in_interrupt())
+		BUG();
+
+	/* We used to wait for the buffer to finish here, but this didn't work
+	   because, as we were keeping the state as VIDEOBUF_QUEUED,
+	   videobuf_queue_cancel marked it as finished for us.
+	   (Also, it could wedge forever if the hardware was misconfigured.)
+
+	   This should be safe; by the time we get here, the buffer isn't
+	   queued anymore. If we ever start marking the buffers as
+	   VIDEOBUF_ACTIVE, it won't be, though.
+	 */
+	spin_lock_irqsave(&dev->vbi_mode.slock, flags);
+	if (dev->vbi_mode.bulk_ctl.buf == buf)
+		dev->vbi_mode.bulk_ctl.buf = NULL;
+	spin_unlock_irqrestore(&dev->vbi_mode.slock, flags);
+
+	videobuf_vmalloc_free(&buf->vb);
+	buf->vb.state = VIDEOBUF_NEEDS_INIT;
+}
+
+static int
+vbi_buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
+		   enum v4l2_field field)
+{
+	struct cx231xx_fh *fh = vq->priv_data;
+	struct cx231xx_buffer *buf =
+	    container_of(vb, struct cx231xx_buffer, vb);
+	struct cx231xx *dev = fh->dev;
+	int rc = 0, urb_init = 0;
+	u32 height = 0;
+
+	height = ((dev->norm & V4L2_STD_625_50) ?
+		  PAL_VBI_LINES : NTSC_VBI_LINES);
+	buf->vb.size = ((dev->width << 1) * height * 2);
+
+	if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+		return -EINVAL;
+
+	buf->vb.width = dev->width;
+	buf->vb.height = height;
+	buf->vb.field = field;
+	buf->vb.field = V4L2_FIELD_SEQ_TB;
+
+	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+		rc = videobuf_iolock(vq, &buf->vb, NULL);
+		if (rc < 0)
+			goto fail;
+	}
+
+	if (!dev->vbi_mode.bulk_ctl.num_bufs)
+		urb_init = 1;
+
+	if (urb_init) {
+		rc = cx231xx_init_vbi_isoc(dev, CX231XX_NUM_VBI_PACKETS,
+					   CX231XX_NUM_VBI_BUFS,
+					   dev->vbi_mode.alt_max_pkt_size[0],
+					   cx231xx_isoc_vbi_copy);
+		if (rc < 0)
+			goto fail;
+	}
+
+	buf->vb.state = VIDEOBUF_PREPARED;
+	return 0;
+
+fail:
+	free_buffer(vq, buf);
+	return rc;
+}
+
+static void
+vbi_buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+{
+	struct cx231xx_buffer *buf =
+	    container_of(vb, struct cx231xx_buffer, vb);
+	struct cx231xx_fh *fh = vq->priv_data;
+	struct cx231xx *dev = fh->dev;
+	struct cx231xx_dmaqueue *vidq = &dev->vbi_mode.vidq;
+
+	buf->vb.state = VIDEOBUF_QUEUED;
+	list_add_tail(&buf->vb.queue, &vidq->active);
+
+}
+
+static void vbi_buffer_release(struct videobuf_queue *vq,
+			       struct videobuf_buffer *vb)
+{
+	struct cx231xx_buffer *buf =
+	    container_of(vb, struct cx231xx_buffer, vb);
+
+
+	free_buffer(vq, buf);
+}
+
+struct videobuf_queue_ops cx231xx_vbi_qops = {
+	.buf_setup   = vbi_buffer_setup,
+	.buf_prepare = vbi_buffer_prepare,
+	.buf_queue   = vbi_buffer_queue,
+	.buf_release = vbi_buffer_release,
+};
+
+/* ------------------------------------------------------------------
+	URB control
+   ------------------------------------------------------------------*/
+
+/*
+ * IRQ callback, called by URB callback
+ */
+static void cx231xx_irq_vbi_callback(struct urb *urb)
+{
+	struct cx231xx_dmaqueue *dma_q = urb->context;
+	struct cx231xx_video_mode *vmode =
+	    container_of(dma_q, struct cx231xx_video_mode, vidq);
+	struct cx231xx *dev = container_of(vmode, struct cx231xx, vbi_mode);
+
+	switch (urb->status) {
+	case 0:		/* success */
+	case -ETIMEDOUT:	/* NAK */
+		break;
+	case -ECONNRESET:	/* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:		/* error */
+		cx231xx_err("urb completition error %d.\n",
+			    urb->status);
+		break;
+	}
+
+	/* Copy data from URB */
+	spin_lock(&dev->vbi_mode.slock);
+	dev->vbi_mode.bulk_ctl.bulk_copy(dev, urb);
+	spin_unlock(&dev->vbi_mode.slock);
+
+	/* Reset status */
+	urb->status = 0;
+
+	urb->status = usb_submit_urb(urb, GFP_ATOMIC);
+	if (urb->status) {
+		cx231xx_err("urb resubmit failed (error=%i)\n",
+			    urb->status);
+	}
+}
+
+/*
+ * Stop and Deallocate URBs
+ */
+void cx231xx_uninit_vbi_isoc(struct cx231xx *dev)
+{
+	struct urb *urb;
+	int i;
+
+	cx231xx_info("called cx231xx_uninit_vbi_isoc\n");
+
+	dev->vbi_mode.bulk_ctl.nfields = -1;
+	for (i = 0; i < dev->vbi_mode.bulk_ctl.num_bufs; i++) {
+		urb = dev->vbi_mode.bulk_ctl.urb[i];
+		if (urb) {
+			if (!irqs_disabled())
+				usb_kill_urb(urb);
+			else
+				usb_unlink_urb(urb);
+
+			if (dev->vbi_mode.bulk_ctl.transfer_buffer[i]) {
+
+				kfree(dev->vbi_mode.bulk_ctl.
+				      transfer_buffer[i]);
+				dev->vbi_mode.bulk_ctl.transfer_buffer[i] =
+				    NULL;
+			}
+			usb_free_urb(urb);
+			dev->vbi_mode.bulk_ctl.urb[i] = NULL;
+		}
+		dev->vbi_mode.bulk_ctl.transfer_buffer[i] = NULL;
+	}
+
+	kfree(dev->vbi_mode.bulk_ctl.urb);
+	kfree(dev->vbi_mode.bulk_ctl.transfer_buffer);
+
+	dev->vbi_mode.bulk_ctl.urb = NULL;
+	dev->vbi_mode.bulk_ctl.transfer_buffer = NULL;
+	dev->vbi_mode.bulk_ctl.num_bufs = 0;
+
+	cx231xx_capture_start(dev, 0, Vbi);
+}
+EXPORT_SYMBOL_GPL(cx231xx_uninit_vbi_isoc);
+
+/*
+ * Allocate URBs and start IRQ
+ */
+int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
+			  int num_bufs, int max_pkt_size,
+			  int (*bulk_copy) (struct cx231xx *dev,
+					    struct urb *urb))
+{
+	struct cx231xx_dmaqueue *dma_q = &dev->vbi_mode.vidq;
+	int i;
+	int sb_size, pipe;
+	struct urb *urb;
+	int rc;
+
+	cx231xx_info("called cx231xx_vbi_isoc\n");
+
+	/* De-allocates all pending stuff */
+	cx231xx_uninit_vbi_isoc(dev);
+
+	/* clear if any halt */
+	usb_clear_halt(dev->udev,
+		       usb_rcvbulkpipe(dev->udev,
+				       dev->vbi_mode.end_point_addr));
+
+	dev->vbi_mode.bulk_ctl.bulk_copy = bulk_copy;
+	dev->vbi_mode.bulk_ctl.num_bufs = num_bufs;
+	dma_q->pos = 0;
+	dma_q->is_partial_line = 0;
+	dma_q->last_sav = 0;
+	dma_q->current_field = -1;
+	dma_q->bytes_left_in_line = dev->width << 1;
+	dma_q->lines_per_field = ((dev->norm & V4L2_STD_625_50) ?
+				  PAL_VBI_LINES : NTSC_VBI_LINES);
+	dma_q->lines_completed = 0;
+	for (i = 0; i < 8; i++)
+		dma_q->partial_buf[i] = 0;
+
+	dev->vbi_mode.bulk_ctl.urb = kzalloc(sizeof(void *) * num_bufs,
+					     GFP_KERNEL);
+	if (!dev->vbi_mode.bulk_ctl.urb) {
+		cx231xx_errdev("cannot alloc memory for usb buffers\n");
+		return -ENOMEM;
+	}
+
+	dev->vbi_mode.bulk_ctl.transfer_buffer =
+	    kzalloc(sizeof(void *) * num_bufs, GFP_KERNEL);
+	if (!dev->vbi_mode.bulk_ctl.transfer_buffer) {
+		cx231xx_errdev("cannot allocate memory for usbtransfer\n");
+		kfree(dev->vbi_mode.bulk_ctl.urb);
+		return -ENOMEM;
+	}
+
+	dev->vbi_mode.bulk_ctl.max_pkt_size = max_pkt_size;
+	dev->vbi_mode.bulk_ctl.buf = NULL;
+
+	sb_size = max_packets * dev->vbi_mode.bulk_ctl.max_pkt_size;
+
+	/* allocate urbs and transfer buffers */
+	for (i = 0; i < dev->vbi_mode.bulk_ctl.num_bufs; i++) {
+
+		urb = usb_alloc_urb(0, GFP_KERNEL);
+		if (!urb) {
+			cx231xx_err("cannot alloc bulk_ctl.urb %i\n", i);
+			cx231xx_uninit_vbi_isoc(dev);
+			return -ENOMEM;
+		}
+		dev->vbi_mode.bulk_ctl.urb[i] = urb;
+		urb->transfer_flags = 0;
+
+		dev->vbi_mode.bulk_ctl.transfer_buffer[i] =
+		    kzalloc(sb_size, GFP_KERNEL);
+		if (!dev->vbi_mode.bulk_ctl.transfer_buffer[i]) {
+			cx231xx_err("unable to allocate %i bytes for transfer"
+				    " buffer %i%s\n", sb_size, i,
+				    in_interrupt() ? " while in int" : "");
+			cx231xx_uninit_vbi_isoc(dev);
+			return -ENOMEM;
+		}
+
+		pipe = usb_rcvbulkpipe(dev->udev, dev->vbi_mode.end_point_addr);
+		usb_fill_bulk_urb(urb, dev->udev, pipe,
+				  dev->vbi_mode.bulk_ctl.transfer_buffer[i],
+				  sb_size, cx231xx_irq_vbi_callback, dma_q);
+	}
+
+	init_waitqueue_head(&dma_q->wq);
+
+	/* submit urbs and enables IRQ */
+	for (i = 0; i < dev->vbi_mode.bulk_ctl.num_bufs; i++) {
+		rc = usb_submit_urb(dev->vbi_mode.bulk_ctl.urb[i], GFP_ATOMIC);
+		if (rc) {
+			cx231xx_err("submit of urb %i failed (error=%i)\n", i,
+				    rc);
+			cx231xx_uninit_vbi_isoc(dev);
+			return rc;
+		}
+	}
+
+	cx231xx_capture_start(dev, 1, Vbi);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cx231xx_init_vbi_isoc);
+
+u32 cx231xx_get_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+			 u8 sav_eav, u8 *p_buffer, u32 buffer_size)
+{
+	u32 bytes_copied = 0;
+	int current_field = -1;
+
+	switch (sav_eav) {
+
+	case SAV_VBI_FIELD1:
+		current_field = 1;
+		break;
+
+	case SAV_VBI_FIELD2:
+		current_field = 2;
+		break;
+	default:
+		break;
+	}
+
+	if (current_field < 0)
+		return bytes_copied;
+
+	dma_q->last_sav = sav_eav;
+
+	bytes_copied =
+	    cx231xx_copy_vbi_line(dev, dma_q, p_buffer, buffer_size,
+				  current_field);
+
+	return bytes_copied;
+}
+
+/*
+ * Announces that a buffer were filled and request the next
+ */
+static inline void vbi_buffer_filled(struct cx231xx *dev,
+				     struct cx231xx_dmaqueue *dma_q,
+				     struct cx231xx_buffer *buf)
+{
+	/* Advice that buffer was filled */
+	/* cx231xx_info("[%p/%d] wakeup\n", buf, buf->vb.i); */
+
+	buf->vb.state = VIDEOBUF_DONE;
+	buf->vb.field_count++;
+	v4l2_get_timestamp(&buf->vb.ts);
+
+	dev->vbi_mode.bulk_ctl.buf = NULL;
+
+	list_del(&buf->vb.queue);
+	wake_up(&buf->vb.done);
+}
+
+u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+			  u8 *p_line, u32 length, int field_number)
+{
+	u32 bytes_to_copy;
+	struct cx231xx_buffer *buf;
+	u32 _line_size = dev->width * 2;
+
+	if (dma_q->current_field == -1) {
+		/* Just starting up */
+		cx231xx_reset_vbi_buffer(dev, dma_q);
+	}
+
+	if (dma_q->current_field != field_number)
+		dma_q->lines_completed = 0;
+
+	/* get the buffer pointer */
+	buf = dev->vbi_mode.bulk_ctl.buf;
+
+	/* Remember the field number for next time */
+	dma_q->current_field = field_number;
+
+	bytes_to_copy = dma_q->bytes_left_in_line;
+	if (bytes_to_copy > length)
+		bytes_to_copy = length;
+
+	if (dma_q->lines_completed >= dma_q->lines_per_field) {
+		dma_q->bytes_left_in_line -= bytes_to_copy;
+		dma_q->is_partial_line =
+		    (dma_q->bytes_left_in_line == 0) ? 0 : 1;
+		return 0;
+	}
+
+	dma_q->is_partial_line = 1;
+
+	/* If we don't have a buffer, just return the number of bytes we would
+	   have copied if we had a buffer. */
+	if (!buf) {
+		dma_q->bytes_left_in_line -= bytes_to_copy;
+		dma_q->is_partial_line =
+		    (dma_q->bytes_left_in_line == 0) ? 0 : 1;
+		return bytes_to_copy;
+	}
+
+	/* copy the data to video buffer */
+	cx231xx_do_vbi_copy(dev, dma_q, p_line, bytes_to_copy);
+
+	dma_q->pos += bytes_to_copy;
+	dma_q->bytes_left_in_line -= bytes_to_copy;
+
+	if (dma_q->bytes_left_in_line == 0) {
+
+		dma_q->bytes_left_in_line = _line_size;
+		dma_q->lines_completed++;
+		dma_q->is_partial_line = 0;
+
+		if (cx231xx_is_vbi_buffer_done(dev, dma_q) && buf) {
+
+			vbi_buffer_filled(dev, dma_q, buf);
+
+			dma_q->pos = 0;
+			dma_q->lines_completed = 0;
+			cx231xx_reset_vbi_buffer(dev, dma_q);
+		}
+	}
+
+	return bytes_to_copy;
+}
+
+/*
+ * video-buf generic routine to get the next available buffer
+ */
+static inline void get_next_vbi_buf(struct cx231xx_dmaqueue *dma_q,
+				    struct cx231xx_buffer **buf)
+{
+	struct cx231xx_video_mode *vmode =
+	    container_of(dma_q, struct cx231xx_video_mode, vidq);
+	struct cx231xx *dev = container_of(vmode, struct cx231xx, vbi_mode);
+	char *outp;
+
+	if (list_empty(&dma_q->active)) {
+		cx231xx_err("No active queue to serve\n");
+		dev->vbi_mode.bulk_ctl.buf = NULL;
+		*buf = NULL;
+		return;
+	}
+
+	/* Get the next buffer */
+	*buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);
+
+	/* Cleans up buffer - Useful for testing for frame/URB loss */
+	outp = videobuf_to_vmalloc(&(*buf)->vb);
+	memset(outp, 0, (*buf)->vb.size);
+
+	dev->vbi_mode.bulk_ctl.buf = *buf;
+
+	return;
+}
+
+void cx231xx_reset_vbi_buffer(struct cx231xx *dev,
+			      struct cx231xx_dmaqueue *dma_q)
+{
+	struct cx231xx_buffer *buf;
+
+	buf = dev->vbi_mode.bulk_ctl.buf;
+
+	if (buf == NULL) {
+		/* first try to get the buffer */
+		get_next_vbi_buf(dma_q, &buf);
+
+		dma_q->pos = 0;
+		dma_q->current_field = -1;
+	}
+
+	dma_q->bytes_left_in_line = dev->width << 1;
+	dma_q->lines_completed = 0;
+}
+
+int cx231xx_do_vbi_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+			u8 *p_buffer, u32 bytes_to_copy)
+{
+	u8 *p_out_buffer = NULL;
+	u32 current_line_bytes_copied = 0;
+	struct cx231xx_buffer *buf;
+	u32 _line_size = dev->width << 1;
+	void *startwrite;
+	int offset, lencopy;
+
+	buf = dev->vbi_mode.bulk_ctl.buf;
+
+	if (buf == NULL)
+		return -EINVAL;
+
+	p_out_buffer = videobuf_to_vmalloc(&buf->vb);
+
+	if (dma_q->bytes_left_in_line != _line_size) {
+		current_line_bytes_copied =
+		    _line_size - dma_q->bytes_left_in_line;
+	}
+
+	offset = (dma_q->lines_completed * _line_size) +
+		 current_line_bytes_copied;
+
+	if (dma_q->current_field == 2) {
+		/* Populate the second half of the frame */
+		offset += (dev->width * 2 * dma_q->lines_per_field);
+	}
+
+	/* prepare destination address */
+	startwrite = p_out_buffer + offset;
+
+	lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?
+		  bytes_to_copy : dma_q->bytes_left_in_line;
+
+	memcpy(startwrite, p_buffer, lencopy);
+
+	return 0;
+}
+
+u8 cx231xx_is_vbi_buffer_done(struct cx231xx *dev,
+			      struct cx231xx_dmaqueue *dma_q)
+{
+	u32 height = 0;
+
+	height = ((dev->norm & V4L2_STD_625_50) ?
+		  PAL_VBI_LINES : NTSC_VBI_LINES);
+	if (dma_q->lines_completed == height && dma_q->current_field == 2)
+		return 1;
+	else
+		return 0;
+}

drivers/media/usb/cx231xx/cx231xx-vbi.h

@@ -0,0 +1,65 @@
+/*
+   cx231xx_vbi.h - driver for Conexant Cx23100/101/102 USB video capture devices
+
+   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+		Based on cx88 driver
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _CX231XX_VBI_H
+#define _CX231XX_VBI_H
+
+extern struct videobuf_queue_ops cx231xx_vbi_qops;
+
+#define   NTSC_VBI_START_LINE 10	/* line 10 - 21 */
+#define   NTSC_VBI_END_LINE   21
+#define   NTSC_VBI_LINES	  (NTSC_VBI_END_LINE-NTSC_VBI_START_LINE+1)
+
+#define   PAL_VBI_START_LINE  6
+#define   PAL_VBI_END_LINE    23
+#define   PAL_VBI_LINES       (PAL_VBI_END_LINE-PAL_VBI_START_LINE+1)
+
+#define   VBI_STRIDE            1440
+#define   VBI_SAMPLES_PER_LINE  1440
+
+#define   CX231XX_NUM_VBI_PACKETS       4
+#define   CX231XX_NUM_VBI_BUFS          5
+
+/* stream functions */
+int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
+			  int num_bufs, int max_pkt_size,
+			  int (*bulk_copy) (struct cx231xx *dev,
+					    struct urb *urb));
+
+void cx231xx_uninit_vbi_isoc(struct cx231xx *dev);
+
+/* vbi data copy functions */
+u32 cx231xx_get_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+			 u8 sav_eav, u8 *p_buffer, u32 buffer_size);
+
+u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+			  u8 *p_line, u32 length, int field_number);
+
+void cx231xx_reset_vbi_buffer(struct cx231xx *dev,
+			      struct cx231xx_dmaqueue *dma_q);
+
+int cx231xx_do_vbi_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
+			u8 *p_buffer, u32 bytes_to_copy);
+
+u8 cx231xx_is_vbi_buffer_done(struct cx231xx *dev,
+			      struct cx231xx_dmaqueue *dma_q);
+
+#endif

drivers/media/usb/dvb-usb-v2/Kconfig

@@ -0,0 +1,150 @@
+config DVB_USB_V2
+	tristate "Support for various USB DVB devices v2"
+	depends on DVB_CORE && USB && I2C && (RC_CORE || RC_CORE=n)
+	help
+	  By enabling this you will be able to choose the various supported
+	  USB1.1 and USB2.0 DVB devices.
+
+	  Almost every USB device needs a firmware, please look into
+	  <file:Documentation/dvb/README.dvb-usb>.
+
+	  For a complete list of supported USB devices see the LinuxTV DVB Wiki:
+	  <http://www.linuxtv.org/wiki/index.php/DVB_USB>
+
+	  Say Y if you own a USB DVB device.
+
+config DVB_USB_AF9015
+	tristate "Afatech AF9015 DVB-T USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_AF9013
+	select DVB_PLL              if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MT2060   if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_QT1010   if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_TDA18271 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MXL5005S if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MC44S803 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_TDA18218 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MXL5007T if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the Afatech AF9015 based DVB-T USB2.0 receiver
+
+config DVB_USB_AF9035
+	tristate "Afatech AF9035 DVB-T USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_AF9033
+	select MEDIA_TUNER_TUA9001 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_FC0011 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MXL5007T if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_TDA18218 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_FC2580 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_IT913X if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the Afatech AF9035 based DVB USB receiver.
+
+config DVB_USB_ANYSEE
+	tristate "Anysee DVB-T/C USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_PLL if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_MT352 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_ZL10353 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_TDA10023 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_TDA18212 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_CX24116 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_STV0900 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_STV6110 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_ISL6423 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_CXD2820R if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the Anysee E30, Anysee E30 Plus or
+	  Anysee E30 C Plus DVB USB2.0 receiver.
+
+config DVB_USB_AU6610
+	tristate "Alcor Micro AU6610 USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_ZL10353 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_QT1010 if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the Sigmatek DVB-110 DVB-T USB2.0 receiver.
+
+config DVB_USB_AZ6007
+	tristate "AzureWave 6007 and clones DVB-T/C USB2.0 support"
+	depends on DVB_USB_V2
+	select CYPRESS_FIRMWARE
+	select DVB_DRXK if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MT2063 if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the AZ6007 receivers like Terratec H7.
+
+config DVB_USB_CE6230
+	tristate "Intel CE6230 DVB-T USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_ZL10353
+	select MEDIA_TUNER_MXL5005S if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the Intel CE6230 DVB-T USB2.0 receiver
+
+config DVB_USB_EC168
+	tristate "E3C EC168 DVB-T USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_EC100
+	select MEDIA_TUNER_MXL5005S if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the E3C EC168 DVB-T USB2.0 receiver.
+
+config DVB_USB_GL861
+	tristate "Genesys Logic GL861 USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_ZL10353 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_QT1010 if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the MSI Megasky 580 (55801) DVB-T USB2.0
+	  receiver with USB ID 0db0:5581.
+
+config DVB_USB_LME2510
+	tristate "LME DM04/QQBOX DVB-S USB2.0 support"
+	depends on DVB_USB_V2
+	depends on RC_CORE
+	select DVB_TDA10086 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_TDA826X if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_STV0288 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_IX2505V if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_STV0299 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_PLL if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_M88RS2000 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_TS2020 if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the LME DM04/QQBOX DVB-S USB2.0
+
+config DVB_USB_MXL111SF
+	tristate "MxL111SF DTV USB2.0 support"
+	depends on DVB_USB_V2
+	select DVB_LGDT3305 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_LG2160 if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_TVEEPROM
+	help
+	  Say Y here to support the MxL111SF USB2.0 DTV receiver.
+
+config DVB_USB_RTL28XXU
+	tristate "Realtek RTL28xxU DVB USB support"
+	depends on DVB_USB_V2 && I2C_MUX
+	select DVB_RTL2830
+	select DVB_RTL2832
+	select DVB_RTL2832_SDR if (MEDIA_SUBDRV_AUTOSELECT && MEDIA_SDR_SUPPORT)
+	select MEDIA_TUNER_QT1010 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MT2060 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_MXL5005S if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_FC0012 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_FC0013 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_E4000 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_FC2580 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_R820T if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the Realtek RTL28xxU DVB USB receiver.
+
+config DVB_USB_DVBSKY
+	tristate "DVBSky USB support"
+	depends on DVB_USB_V2
+	select DVB_M88DS3103 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_M88TS2022 if MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y here to support the USB receivers from DVBSky.

drivers/media/usb/dvb-usb-v2/Makefile

@@ -0,0 +1,46 @@
+dvb_usb_v2-objs := dvb_usb_core.o dvb_usb_urb.o usb_urb.o
+obj-$(CONFIG_DVB_USB_V2) += dvb_usb_v2.o
+
+dvb-usb-af9015-objs := af9015.o
+obj-$(CONFIG_DVB_USB_AF9015) += dvb-usb-af9015.o
+
+dvb-usb-af9035-objs := af9035.o
+obj-$(CONFIG_DVB_USB_AF9035) += dvb-usb-af9035.o
+
+dvb-usb-anysee-objs := anysee.o
+obj-$(CONFIG_DVB_USB_ANYSEE) += dvb-usb-anysee.o
+
+dvb-usb-au6610-objs := au6610.o
+obj-$(CONFIG_DVB_USB_AU6610) += dvb-usb-au6610.o
+
+dvb-usb-az6007-objs := az6007.o
+obj-$(CONFIG_DVB_USB_AZ6007) += dvb-usb-az6007.o
+
+dvb-usb-ce6230-objs := ce6230.o
+obj-$(CONFIG_DVB_USB_CE6230) += dvb-usb-ce6230.o
+
+dvb-usb-ec168-objs := ec168.o
+obj-$(CONFIG_DVB_USB_EC168) += dvb-usb-ec168.o
+
+dvb-usb-lmedm04-objs := lmedm04.o
+obj-$(CONFIG_DVB_USB_LME2510) += dvb-usb-lmedm04.o
+
+dvb-usb-gl861-objs := gl861.o
+obj-$(CONFIG_DVB_USB_GL861) += dvb-usb-gl861.o
+
+dvb-usb-mxl111sf-objs += mxl111sf.o mxl111sf-phy.o mxl111sf-i2c.o
+dvb-usb-mxl111sf-objs += mxl111sf-gpio.o
+obj-$(CONFIG_DVB_USB_MXL111SF) += dvb-usb-mxl111sf.o
+obj-$(CONFIG_DVB_USB_MXL111SF) += mxl111sf-demod.o
+obj-$(CONFIG_DVB_USB_MXL111SF) += mxl111sf-tuner.o
+
+dvb-usb-rtl28xxu-objs := rtl28xxu.o
+obj-$(CONFIG_DVB_USB_RTL28XXU) += dvb-usb-rtl28xxu.o
+
+dvb-usb-dvbsky-objs := dvbsky.o
+obj-$(CONFIG_DVB_USB_DVBSKY) += dvb-usb-dvbsky.o
+
+ccflags-y += -I$(srctree)/drivers/media/dvb-core
+ccflags-y += -I$(srctree)/drivers/media/dvb-frontends
+ccflags-y += -I$(srctree)/drivers/media/tuners
+ccflags-y += -I$(srctree)/drivers/media/common

drivers/media/usb/dvb-usb-v2/af9015.h

@@ -0,0 +1,153 @@
+/*
+ * DVB USB Linux driver for Afatech AF9015 DVB-T USB2.0 receiver
+ *
+ * Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
+ *
+ * Thanks to Afatech who kindly provided information.
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef AF9015_H
+#define AF9015_H
+
+#include <linux/hash.h>
+#include "dvb_usb.h"
+#include "af9013.h"
+#include "dvb-pll.h"
+#include "mt2060.h"
+#include "qt1010.h"
+#include "tda18271.h"
+#include "mxl5005s.h"
+#include "mc44s803.h"
+#include "tda18218.h"
+#include "mxl5007t.h"
+
+#define AF9015_FIRMWARE "dvb-usb-af9015.fw"
+
+/* Windows driver uses packet count 21 for USB1.1 and 348 for USB2.0.
+   We use smaller - about 1/4 from the original, 5 and 87. */
+#define TS_PACKET_SIZE            188
+
+#define TS_USB20_PACKET_COUNT      87
+#define TS_USB20_FRAME_SIZE       (TS_PACKET_SIZE*TS_USB20_PACKET_COUNT)
+
+#define TS_USB11_PACKET_COUNT       5
+#define TS_USB11_FRAME_SIZE       (TS_PACKET_SIZE*TS_USB11_PACKET_COUNT)
+
+#define TS_USB20_MAX_PACKET_SIZE  512
+#define TS_USB11_MAX_PACKET_SIZE   64
+
+#define AF9015_I2C_EEPROM  0xa0
+#define AF9015_I2C_DEMOD   0x38
+#define AF9015_USB_TIMEOUT 2000
+
+/* EEPROM locations */
+#define AF9015_EEPROM_IR_MODE        0x18
+#define AF9015_EEPROM_IR_REMOTE_TYPE 0x34
+#define AF9015_EEPROM_TS_MODE        0x31
+#define AF9015_EEPROM_DEMOD2_I2C     0x32
+
+#define AF9015_EEPROM_SAW_BW1        0x35
+#define AF9015_EEPROM_XTAL_TYPE1     0x36
+#define AF9015_EEPROM_SPEC_INV1      0x37
+#define AF9015_EEPROM_IF1L           0x38
+#define AF9015_EEPROM_IF1H           0x39
+#define AF9015_EEPROM_MT2060_IF1L    0x3a
+#define AF9015_EEPROM_MT2060_IF1H    0x3b
+#define AF9015_EEPROM_TUNER_ID1      0x3c
+
+#define AF9015_EEPROM_SAW_BW2        0x45
+#define AF9015_EEPROM_XTAL_TYPE2     0x46
+#define AF9015_EEPROM_SPEC_INV2      0x47
+#define AF9015_EEPROM_IF2L           0x48
+#define AF9015_EEPROM_IF2H           0x49
+#define AF9015_EEPROM_MT2060_IF2L    0x4a
+#define AF9015_EEPROM_MT2060_IF2H    0x4b
+#define AF9015_EEPROM_TUNER_ID2      0x4c
+
+#define AF9015_EEPROM_OFFSET (AF9015_EEPROM_SAW_BW2 - AF9015_EEPROM_SAW_BW1)
+
+struct req_t {
+	u8  cmd;       /* [0] */
+	/*  seq */     /* [1] */
+	u8  i2c_addr;  /* [2] */
+	u16 addr;      /* [3|4] */
+	u8  mbox;      /* [5] */
+	u8  addr_len;  /* [6] */
+	u8  data_len;  /* [7] */
+	u8  *data;
+};
+
+enum af9015_cmd {
+	GET_CONFIG           = 0x10,
+	DOWNLOAD_FIRMWARE    = 0x11,
+	BOOT                 = 0x13,
+	READ_MEMORY          = 0x20,
+	WRITE_MEMORY         = 0x21,
+	READ_WRITE_I2C       = 0x22,
+	COPY_FIRMWARE        = 0x23,
+	RECONNECT_USB        = 0x5a,
+	WRITE_VIRTUAL_MEMORY = 0x26,
+	GET_IR_CODE          = 0x27,
+	READ_I2C,
+	WRITE_I2C,
+};
+
+enum af9015_ir_mode {
+	AF9015_IR_MODE_DISABLED = 0,
+	AF9015_IR_MODE_HID,
+	AF9015_IR_MODE_RLC,
+	AF9015_IR_MODE_RC6,
+	AF9015_IR_MODE_POLLING, /* just guess */
+};
+
+#define BUF_LEN 63
+struct af9015_state {
+	u8 buf[BUF_LEN]; /* bulk USB control message */
+	u8 ir_mode;
+	u8 rc_repeat;
+	u32 rc_keycode;
+	u8 rc_last[4];
+	bool rc_failed;
+	u8 dual_mode;
+	u8 seq; /* packet sequence number */
+	u16 mt2060_if1[2];
+	u16 firmware_size;
+	u16 firmware_checksum;
+	u32 eeprom_sum;
+	struct af9013_config af9013_config[2];
+
+	/* for demod callback override */
+	int (*set_frontend[2]) (struct dvb_frontend *fe);
+	int (*read_status[2]) (struct dvb_frontend *fe, fe_status_t *status);
+	int (*init[2]) (struct dvb_frontend *fe);
+	int (*sleep[2]) (struct dvb_frontend *fe);
+	int (*tuner_init[2]) (struct dvb_frontend *fe);
+	int (*tuner_sleep[2]) (struct dvb_frontend *fe);
+	struct mutex fe_mutex;
+};
+
+enum af9015_remote {
+	AF9015_REMOTE_NONE                    = 0,
+/* 1 */	AF9015_REMOTE_A_LINK_DTU_M,
+	AF9015_REMOTE_MSI_DIGIVOX_MINI_II_V3,
+	AF9015_REMOTE_MYGICTV_U718,
+	AF9015_REMOTE_DIGITTRADE_DVB_T,
+/* 5 */	AF9015_REMOTE_AVERMEDIA_KS,
+};
+
+#endif

drivers/media/usb/dvb-usb-v2/af9035.h

@@ -0,0 +1,150 @@
+/*
+ * Afatech AF9035 DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License along
+ *    with this program; if not, write to the Free Software Foundation, Inc.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef AF9035_H
+#define AF9035_H
+
+#include "dvb_usb.h"
+#include "af9033.h"
+#include "tua9001.h"
+#include "fc0011.h"
+#include "fc0012.h"
+#include "mxl5007t.h"
+#include "tda18218.h"
+#include "fc2580.h"
+#include "it913x.h"
+#include "si2168.h"
+#include "si2157.h"
+
+struct reg_val {
+	u32 reg;
+	u8  val;
+};
+
+struct reg_val_mask {
+	u32 reg;
+	u8  val;
+	u8  mask;
+};
+
+struct usb_req {
+	u8  cmd;
+	u8  mbox;
+	u8  wlen;
+	u8  *wbuf;
+	u8  rlen;
+	u8  *rbuf;
+};
+
+struct state {
+#define BUF_LEN 64
+	u8 buf[BUF_LEN];
+	u8 seq; /* packet sequence number */
+	u8 prechip_version;
+	u8 chip_version;
+	u16 chip_type;
+	u8 dual_mode:1;
+	u16 eeprom_addr;
+	u8 af9033_i2c_addr[2];
+	struct af9033_config af9033_config[2];
+	struct af9033_ops ops;
+	#define AF9035_I2C_CLIENT_MAX 4
+	struct i2c_client *i2c_client[AF9035_I2C_CLIENT_MAX];
+	struct i2c_adapter *i2c_adapter_demod;
+};
+
+static const u32 clock_lut_af9035[] = {
+	20480000, /*      FPGA */
+	16384000, /* 16.38 MHz */
+	20480000, /* 20.48 MHz */
+	36000000, /* 36.00 MHz */
+	30000000, /* 30.00 MHz */
+	26000000, /* 26.00 MHz */
+	28000000, /* 28.00 MHz */
+	32000000, /* 32.00 MHz */
+	34000000, /* 34.00 MHz */
+	24000000, /* 24.00 MHz */
+	22000000, /* 22.00 MHz */
+	12000000, /* 12.00 MHz */
+};
+
+static const u32 clock_lut_it9135[] = {
+	12000000, /* 12.00 MHz */
+	20480000, /* 20.48 MHz */
+	36000000, /* 36.00 MHz */
+	30000000, /* 30.00 MHz */
+	26000000, /* 26.00 MHz */
+	28000000, /* 28.00 MHz */
+	32000000, /* 32.00 MHz */
+	34000000, /* 34.00 MHz */
+	24000000, /* 24.00 MHz */
+	22000000, /* 22.00 MHz */
+};
+
+#define AF9035_FIRMWARE_AF9035 "dvb-usb-af9035-02.fw"
+#define AF9035_FIRMWARE_IT9135_V1 "dvb-usb-it9135-01.fw"
+#define AF9035_FIRMWARE_IT9135_V2 "dvb-usb-it9135-02.fw"
+#define AF9035_FIRMWARE_IT9303 "dvb-usb-it9303-01.fw"
+
+/*
+ * eeprom is memory mapped as read only. Writing that memory mapped address
+ * will not corrupt eeprom.
+ *
+ * TS mode:
+ * 0  TS
+ * 1  DCA + PIP
+ * 3  PIP
+ * n  DCA
+ *
+ * Values 0 and 3 are seen to this day. 0 for single TS and 3 for dual TS.
+ */
+
+#define EEPROM_BASE_AF9035        0x42fd
+#define EEPROM_BASE_IT9135        0x499c
+#define EEPROM_SHIFT                0x10
+
+#define EEPROM_IR_MODE              0x10
+#define EEPROM_TS_MODE              0x29
+#define EEPROM_2ND_DEMOD_ADDR       0x2a
+#define EEPROM_IR_TYPE              0x2c
+#define EEPROM_1_IF_L               0x30
+#define EEPROM_1_IF_H               0x31
+#define EEPROM_1_TUNER_ID           0x34
+#define EEPROM_2_IF_L               0x40
+#define EEPROM_2_IF_H               0x41
+#define EEPROM_2_TUNER_ID           0x44
+
+/* USB commands */
+#define CMD_MEM_RD                  0x00
+#define CMD_MEM_WR                  0x01
+#define CMD_I2C_RD                  0x02
+#define CMD_I2C_WR                  0x03
+#define CMD_IR_GET                  0x18
+#define CMD_FW_DL                   0x21
+#define CMD_FW_QUERYINFO            0x22
+#define CMD_FW_BOOT                 0x23
+#define CMD_FW_DL_BEGIN             0x24
+#define CMD_FW_DL_END               0x25
+#define CMD_FW_SCATTER_WR           0x29
+#define CMD_GENERIC_I2C_RD          0x2a
+#define CMD_GENERIC_I2C_WR          0x2b
+
+#endif

drivers/media/usb/dvb-usb-v2/anysee.h

@@ -0,0 +1,330 @@
+/*
+ * DVB USB Linux driver for Anysee E30 DVB-C & DVB-T USB2.0 receiver
+ *
+ * Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * TODO:
+ * - add smart card reader support for Conditional Access (CA)
+ *
+ * Card reader in Anysee is nothing more than ISO 7816 card reader.
+ * There is no hardware CAM in any Anysee device sold.
+ * In my understanding it should be implemented by making own module
+ * for ISO 7816 card reader, like dvb_ca_en50221 is implemented. This
+ * module registers serial interface that can be used to communicate
+ * with any ISO 7816 smart card.
+ *
+ * Any help according to implement serial smart card reader support
+ * is highly welcome!
+ */
+
+#ifndef _DVB_USB_ANYSEE_H_
+#define _DVB_USB_ANYSEE_H_
+
+#define DVB_USB_LOG_PREFIX "anysee"
+#include "dvb_usb.h"
+#include "dvb_ca_en50221.h"
+
+enum cmd {
+	CMD_I2C_READ            = 0x33,
+	CMD_I2C_WRITE           = 0x31,
+	CMD_REG_READ            = 0xb0,
+	CMD_REG_WRITE           = 0xb1,
+	CMD_STREAMING_CTRL      = 0x12,
+	CMD_LED_AND_IR_CTRL     = 0x16,
+	CMD_GET_IR_CODE         = 0x41,
+	CMD_GET_HW_INFO         = 0x19,
+	CMD_SMARTCARD           = 0x34,
+	CMD_CI                  = 0x37,
+};
+
+struct anysee_state {
+	u8 buf[64];
+	u8 seq;
+	u8 hw; /* PCB ID */
+	#define ANYSEE_I2C_CLIENT_MAX 1
+	struct i2c_client *i2c_client[ANYSEE_I2C_CLIENT_MAX];
+	u8 fe_id:1; /* frondend ID */
+	u8 has_ci:1;
+	u8 has_tda18212:1;
+	u8 ci_attached:1;
+	struct dvb_ca_en50221 ci;
+	unsigned long ci_cam_ready; /* jiffies */
+};
+
+#define ANYSEE_HW_507T    2 /* E30 */
+#define ANYSEE_HW_507CD   6 /* E30 Plus */
+#define ANYSEE_HW_507DC  10 /* E30 C Plus */
+#define ANYSEE_HW_507SI  11 /* E30 S2 Plus */
+#define ANYSEE_HW_507FA  15 /* E30 Combo Plus / E30 C Plus */
+#define ANYSEE_HW_508TC  18 /* E7 TC */
+#define ANYSEE_HW_508S2  19 /* E7 S2 */
+#define ANYSEE_HW_508T2C 20 /* E7 T2C */
+#define ANYSEE_HW_508PTC 21 /* E7 PTC Plus */
+#define ANYSEE_HW_508PS2 22 /* E7 PS2 Plus */
+
+#define REG_IOA       0x80 /* Port A (bit addressable) */
+#define REG_IOB       0x90 /* Port B (bit addressable) */
+#define REG_IOC       0xa0 /* Port C (bit addressable) */
+#define REG_IOD       0xb0 /* Port D (bit addressable) */
+#define REG_IOE       0xb1 /* Port E (NOT bit addressable) */
+#define REG_OEA       0xb2 /* Port A Output Enable */
+#define REG_OEB       0xb3 /* Port B Output Enable */
+#define REG_OEC       0xb4 /* Port C Output Enable */
+#define REG_OED       0xb5 /* Port D Output Enable */
+#define REG_OEE       0xb6 /* Port E Output Enable */
+
+#endif
+
+/***************************************************************************
+ * USB API description (reverse engineered)
+ ***************************************************************************
+
+Transaction flow:
+=================
+BULK[00001] >>> REQUEST PACKET 64 bytes
+BULK[00081] <<< REPLY PACKET #1 64 bytes (PREVIOUS TRANSACTION REPLY)
+BULK[00081] <<< REPLY PACKET #2 64 bytes (CURRENT TRANSACTION REPLY)
+
+General reply packet(s) are always used if not own reply defined.
+
+============================================================================
+| 00-63 | GENERAL REPLY PACKET #1 (PREVIOUS REPLY)
+============================================================================
+|    00 | reply data (if any) from previous transaction
+|       | Just same reply packet as returned during previous transaction.
+|       | Needed only if reply is missed in previous transaction.
+|       | Just skip normally.
+----------------------------------------------------------------------------
+| 01-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | GENERAL REPLY PACKET #2 (CURRENT REPLY)
+============================================================================
+|    00 | reply data (if any)
+----------------------------------------------------------------------------
+| 01-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | I2C WRITE REQUEST PACKET
+============================================================================
+|    00 | 0x31 I2C write command
+----------------------------------------------------------------------------
+|    01 | i2c address
+----------------------------------------------------------------------------
+|    02 | data length
+|       | 0x02 (for typical I2C reg / val pair)
+----------------------------------------------------------------------------
+|    03 | 0x01
+----------------------------------------------------------------------------
+| 04-   | data
+----------------------------------------------------------------------------
+|   -59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | I2C READ REQUEST PACKET
+============================================================================
+|    00 | 0x33 I2C read command
+----------------------------------------------------------------------------
+|    01 | i2c address + 1
+----------------------------------------------------------------------------
+|    02 | register
+----------------------------------------------------------------------------
+|    03 | 0x00
+----------------------------------------------------------------------------
+|    04 | 0x00
+----------------------------------------------------------------------------
+|    05 | data length
+----------------------------------------------------------------------------
+| 06-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | USB CONTROLLER REGISTER WRITE REQUEST PACKET
+============================================================================
+|    00 | 0xb1 register write command
+----------------------------------------------------------------------------
+| 01-02 | register
+----------------------------------------------------------------------------
+|    03 | 0x01
+----------------------------------------------------------------------------
+|    04 | value
+----------------------------------------------------------------------------
+| 05-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | USB CONTROLLER REGISTER READ REQUEST PACKET
+============================================================================
+|    00 | 0xb0 register read command
+----------------------------------------------------------------------------
+| 01-02 | register
+----------------------------------------------------------------------------
+|    03 | 0x01
+----------------------------------------------------------------------------
+| 04-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | LED CONTROL REQUEST PACKET
+============================================================================
+|    00 | 0x16 LED and IR control command
+----------------------------------------------------------------------------
+|    01 | 0x01 (LED)
+----------------------------------------------------------------------------
+|    03 | 0x00 blink
+|       | 0x01 lights continuously
+----------------------------------------------------------------------------
+|    04 | blink interval
+|       | 0x00 fastest (looks like LED lights continuously)
+|       | 0xff slowest
+----------------------------------------------------------------------------
+| 05-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | IR CONTROL REQUEST PACKET
+============================================================================
+|    00 | 0x16 LED and IR control command
+----------------------------------------------------------------------------
+|    01 | 0x02 (IR)
+----------------------------------------------------------------------------
+|    03 | 0x00 IR disabled
+|       | 0x01 IR enabled
+----------------------------------------------------------------------------
+| 04-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | STREAMING CONTROL REQUEST PACKET
+============================================================================
+|    00 | 0x12 streaming control command
+----------------------------------------------------------------------------
+|    01 | 0x00 streaming disabled
+|       | 0x01 streaming enabled
+----------------------------------------------------------------------------
+|    02 | 0x00
+----------------------------------------------------------------------------
+| 03-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | REMOTE CONTROL REQUEST PACKET
+============================================================================
+|    00 | 0x41 remote control command
+----------------------------------------------------------------------------
+| 01-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | REMOTE CONTROL REPLY PACKET
+============================================================================
+|    00 | 0x00 code not received
+|       | 0x01 code received
+----------------------------------------------------------------------------
+|    01 | remote control code
+----------------------------------------------------------------------------
+| 02-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | GET HARDWARE INFO REQUEST PACKET
+============================================================================
+|    00 | 0x19 get hardware info command
+----------------------------------------------------------------------------
+| 01-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | GET HARDWARE INFO REPLY PACKET
+============================================================================
+|    00 | hardware id
+----------------------------------------------------------------------------
+| 01-02 | firmware version
+----------------------------------------------------------------------------
+| 03-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+============================================================================
+| 00-63 | SMART CARD READER PACKET
+============================================================================
+|    00 | 0x34 smart card reader command
+----------------------------------------------------------------------------
+|    xx |
+----------------------------------------------------------------------------
+| xx-59 | don't care
+----------------------------------------------------------------------------
+|    60 | packet sequence number
+----------------------------------------------------------------------------
+| 61-63 | don't care
+----------------------------------------------------------------------------
+
+*/

drivers/media/usb/dvb-usb-v2/au6610.c

@@ -0,0 +1,213 @@
+/*
+ * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0.
+ *
+ * Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "au6610.h"
+#include "zl10353.h"
+#include "qt1010.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static int au6610_usb_msg(struct dvb_usb_device *d, u8 operation, u8 addr,
+			  u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	int ret;
+	u16 index;
+	u8 *usb_buf;
+
+	/*
+	 * allocate enough for all known requests,
+	 * read returns 5 and write 6 bytes
+	 */
+	usb_buf = kmalloc(6, GFP_KERNEL);
+	if (!usb_buf)
+		return -ENOMEM;
+
+	switch (wlen) {
+	case 1:
+		index = wbuf[0] << 8;
+		break;
+	case 2:
+		index = wbuf[0] << 8;
+		index += wbuf[1];
+		break;
+	default:
+		dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
+				KBUILD_MODNAME, wlen);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), operation,
+			      USB_TYPE_VENDOR|USB_DIR_IN, addr << 1, index,
+			      usb_buf, 6, AU6610_USB_TIMEOUT);
+
+	dvb_usb_dbg_usb_control_msg(d->udev, operation,
+			(USB_TYPE_VENDOR|USB_DIR_IN), addr << 1, index,
+			usb_buf, 6);
+
+	if (ret < 0)
+		goto error;
+
+	switch (operation) {
+	case AU6610_REQ_I2C_READ:
+	case AU6610_REQ_USB_READ:
+		/* requested value is always 5th byte in buffer */
+		rbuf[0] = usb_buf[4];
+	}
+error:
+	kfree(usb_buf);
+	return ret;
+}
+
+static int au6610_i2c_msg(struct dvb_usb_device *d, u8 addr,
+			  u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	u8 request;
+	u8 wo = (rbuf == NULL || rlen == 0); /* write-only */
+
+	if (wo) {
+		request = AU6610_REQ_I2C_WRITE;
+	} else { /* rw */
+		request = AU6610_REQ_I2C_READ;
+	}
+
+	return au6610_usb_msg(d, request, addr, wbuf, wlen, rbuf, rlen);
+}
+
+
+/* I2C */
+static int au6610_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+			   int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	int i;
+
+	if (num > 2)
+		return -EINVAL;
+
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+		return -EAGAIN;
+
+	for (i = 0; i < num; i++) {
+		/* write/read request */
+		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+			if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
+					   msg[i].len, msg[i+1].buf,
+					   msg[i+1].len) < 0)
+				break;
+			i++;
+		} else if (au6610_i2c_msg(d, msg[i].addr, msg[i].buf,
+					       msg[i].len, NULL, 0) < 0)
+				break;
+	}
+
+	mutex_unlock(&d->i2c_mutex);
+	return i;
+}
+
+
+static u32 au6610_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm au6610_i2c_algo = {
+	.master_xfer   = au6610_i2c_xfer,
+	.functionality = au6610_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static struct zl10353_config au6610_zl10353_config = {
+	.demod_address = 0x0f,
+	.no_tuner = 1,
+	.parallel_ts = 1,
+};
+
+static int au6610_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
+{
+	adap->fe[0] = dvb_attach(zl10353_attach, &au6610_zl10353_config,
+			&adap_to_d(adap)->i2c_adap);
+	if (adap->fe[0] == NULL)
+		return -ENODEV;
+
+	return 0;
+}
+
+static struct qt1010_config au6610_qt1010_config = {
+	.i2c_address = 0x62
+};
+
+static int au6610_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
+{
+	return dvb_attach(qt1010_attach, adap->fe[0],
+			&adap_to_d(adap)->i2c_adap,
+			&au6610_qt1010_config) == NULL ? -ENODEV : 0;
+}
+
+static int au6610_init(struct dvb_usb_device *d)
+{
+	/* TODO: this functionality belongs likely to the streaming control */
+	/* bInterfaceNumber 0, bAlternateSetting 5 */
+	return usb_set_interface(d->udev, 0, 5);
+}
+
+static struct dvb_usb_device_properties au6610_props = {
+	.driver_name = KBUILD_MODNAME,
+	.owner = THIS_MODULE,
+	.adapter_nr = adapter_nr,
+
+	.i2c_algo = &au6610_i2c_algo,
+	.frontend_attach = au6610_zl10353_frontend_attach,
+	.tuner_attach = au6610_qt1010_tuner_attach,
+	.init = au6610_init,
+
+	.num_adapters = 1,
+	.adapter = {
+		{
+			.stream = DVB_USB_STREAM_ISOC(0x82, 5, 40, 942, 1),
+		},
+	},
+};
+
+static const struct usb_device_id au6610_id_table[] = {
+	{ DVB_USB_DEVICE(USB_VID_ALCOR_MICRO, USB_PID_SIGMATEK_DVB_110,
+		&au6610_props, "Sigmatek DVB-110", NULL) },
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, au6610_id_table);
+
+static struct usb_driver au6610_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = au6610_id_table,
+	.probe = dvb_usbv2_probe,
+	.disconnect = dvb_usbv2_disconnect,
+	.suspend = dvb_usbv2_suspend,
+	.resume = dvb_usbv2_resume,
+	.reset_resume = dvb_usbv2_reset_resume,
+	.no_dynamic_id = 1,
+	.soft_unbind = 1,
+};
+
+module_usb_driver(au6610_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Driver for Alcor Micro AU6610 DVB-T USB2.0");
+MODULE_VERSION("0.1");
+MODULE_LICENSE("GPL");

drivers/media/usb/dvb-usb-v2/au6610.h

@@ -0,0 +1,32 @@
+/*
+ * DVB USB Linux driver for Alcor Micro AU6610 DVB-T USB2.0.
+ *
+ * Copyright (C) 2006 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef AU6610_H
+#define AU6610_H
+#include "dvb_usb.h"
+
+#define AU6610_REQ_I2C_WRITE	0x14
+#define AU6610_REQ_I2C_READ	0x13
+#define AU6610_REQ_USB_WRITE	0x16
+#define AU6610_REQ_USB_READ	0x15
+
+#define AU6610_USB_TIMEOUT 1000
+
+#endif

drivers/media/usb/dvb-usb-v2/az6007.c

@@ -0,0 +1,985 @@
+/*
+ * Driver for AzureWave 6007 DVB-C/T USB2.0 and clones
+ *
+ * Copyright (c) Henry Wang <Henry.wang@AzureWave.com>
+ *
+ * This driver was made publicly available by Terratec, at:
+ *	http://linux.terratec.de/files/TERRATEC_H7/20110323_TERRATEC_H7_Linux.tar.gz
+ * The original driver's license is GPL, as declared with MODULE_LICENSE()
+ *
+ * Copyright (c) 2010-2012 Mauro Carvalho Chehab
+ *	Driver modified by in order to work with upstream drxk driver, and
+ *	tons of bugs got fixed, and converted to use dvb-usb-v2.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation under version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "drxk.h"
+#include "mt2063.h"
+#include "dvb_ca_en50221.h"
+#include "dvb_usb.h"
+#include "cypress_firmware.h"
+
+#define AZ6007_FIRMWARE "dvb-usb-terratec-h7-az6007.fw"
+
+static int az6007_xfer_debug;
+module_param_named(xfer_debug, az6007_xfer_debug, int, 0644);
+MODULE_PARM_DESC(xfer_debug, "Enable xfer debug");
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+/* Known requests (Cypress FX2 firmware + az6007 "private" ones*/
+
+#define FX2_OED			0xb5
+#define AZ6007_READ_DATA	0xb7
+#define AZ6007_I2C_RD		0xb9
+#define AZ6007_POWER		0xbc
+#define AZ6007_I2C_WR		0xbd
+#define FX2_SCON1		0xc0
+#define AZ6007_TS_THROUGH	0xc7
+#define AZ6007_READ_IR		0xb4
+
+struct az6007_device_state {
+	struct mutex		mutex;
+	struct mutex		ca_mutex;
+	struct dvb_ca_en50221	ca;
+	unsigned		warm:1;
+	int			(*gate_ctrl) (struct dvb_frontend *, int);
+	unsigned char		data[4096];
+};
+
+static struct drxk_config terratec_h7_drxk = {
+	.adr = 0x29,
+	.parallel_ts = true,
+	.dynamic_clk = true,
+	.single_master = true,
+	.enable_merr_cfg = true,
+	.no_i2c_bridge = false,
+	.chunk_size = 64,
+	.mpeg_out_clk_strength = 0x02,
+	.qam_demod_parameter_count = 2,
+	.microcode_name = "dvb-usb-terratec-h7-drxk.fw",
+};
+
+static struct drxk_config cablestar_hdci_drxk = {
+	.adr = 0x29,
+	.parallel_ts = true,
+	.dynamic_clk = true,
+	.single_master = true,
+	.enable_merr_cfg = true,
+	.no_i2c_bridge = false,
+	.chunk_size = 64,
+	.mpeg_out_clk_strength = 0x02,
+	.qam_demod_parameter_count = 2,
+	.microcode_name = "dvb-usb-technisat-cablestar-hdci-drxk.fw",
+};
+
+static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
+{
+	struct az6007_device_state *st = fe_to_priv(fe);
+	struct dvb_usb_adapter *adap = fe->sec_priv;
+	int status = 0;
+
+	pr_debug("%s: %s\n", __func__, enable ? "enable" : "disable");
+
+	if (!adap || !st)
+		return -EINVAL;
+
+	if (enable)
+		status = st->gate_ctrl(fe, 1);
+	else
+		status = st->gate_ctrl(fe, 0);
+
+	return status;
+}
+
+static struct mt2063_config az6007_mt2063_config = {
+	.tuner_address = 0x60,
+	.refclock = 36125000,
+};
+
+static int __az6007_read(struct usb_device *udev, u8 req, u16 value,
+			    u16 index, u8 *b, int blen)
+{
+	int ret;
+
+	ret = usb_control_msg(udev,
+			      usb_rcvctrlpipe(udev, 0),
+			      req,
+			      USB_TYPE_VENDOR | USB_DIR_IN,
+			      value, index, b, blen, 5000);
+	if (ret < 0) {
+		pr_warn("usb read operation failed. (%d)\n", ret);
+		return -EIO;
+	}
+
+	if (az6007_xfer_debug) {
+		printk(KERN_DEBUG "az6007: IN  req: %02x, value: %04x, index: %04x\n",
+		       req, value, index);
+		print_hex_dump_bytes("az6007: payload: ",
+				     DUMP_PREFIX_NONE, b, blen);
+	}
+
+	return ret;
+}
+
+static int az6007_read(struct dvb_usb_device *d, u8 req, u16 value,
+			    u16 index, u8 *b, int blen)
+{
+	struct az6007_device_state *st = d->priv;
+	int ret;
+
+	if (mutex_lock_interruptible(&st->mutex) < 0)
+		return -EAGAIN;
+
+	ret = __az6007_read(d->udev, req, value, index, b, blen);
+
+	mutex_unlock(&st->mutex);
+
+	return ret;
+}
+
+static int __az6007_write(struct usb_device *udev, u8 req, u16 value,
+			     u16 index, u8 *b, int blen)
+{
+	int ret;
+
+	if (az6007_xfer_debug) {
+		printk(KERN_DEBUG "az6007: OUT req: %02x, value: %04x, index: %04x\n",
+		       req, value, index);
+		print_hex_dump_bytes("az6007: payload: ",
+				     DUMP_PREFIX_NONE, b, blen);
+	}
+
+	if (blen > 64) {
+		pr_err("az6007: tried to write %d bytes, but I2C max size is 64 bytes\n",
+		       blen);
+		return -EOPNOTSUPP;
+	}
+
+	ret = usb_control_msg(udev,
+			      usb_sndctrlpipe(udev, 0),
+			      req,
+			      USB_TYPE_VENDOR | USB_DIR_OUT,
+			      value, index, b, blen, 5000);
+	if (ret != blen) {
+		pr_err("usb write operation failed. (%d)\n", ret);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int az6007_write(struct dvb_usb_device *d, u8 req, u16 value,
+			    u16 index, u8 *b, int blen)
+{
+	struct az6007_device_state *st = d->priv;
+	int ret;
+
+	if (mutex_lock_interruptible(&st->mutex) < 0)
+		return -EAGAIN;
+
+	ret = __az6007_write(d->udev, req, value, index, b, blen);
+
+	mutex_unlock(&st->mutex);
+
+	return ret;
+}
+
+static int az6007_streaming_ctrl(struct dvb_frontend *fe, int onoff)
+{
+	struct dvb_usb_device *d = fe_to_d(fe);
+
+	pr_debug("%s: %s\n", __func__, onoff ? "enable" : "disable");
+
+	return az6007_write(d, 0xbc, onoff, 0, NULL, 0);
+}
+
+#if IS_ENABLED(CONFIG_RC_CORE)
+/* remote control stuff (does not work with my box) */
+static int az6007_rc_query(struct dvb_usb_device *d)
+{
+	struct az6007_device_state *st = d_to_priv(d);
+	unsigned code;
+
+	az6007_read(d, AZ6007_READ_IR, 0, 0, st->data, 10);
+
+	if (st->data[1] == 0x44)
+		return 0;
+
+	if ((st->data[3] ^ st->data[4]) == 0xff) {
+		if ((st->data[1] ^ st->data[2]) == 0xff)
+			code = RC_SCANCODE_NEC(st->data[1], st->data[3]);
+		else
+			code = RC_SCANCODE_NECX(st->data[1] << 8 | st->data[2],
+						st->data[3]);
+	} else {
+		code = RC_SCANCODE_NEC32(st->data[1] << 24 |
+					 st->data[2] << 16 |
+					 st->data[3] << 8  |
+					 st->data[4]);
+	}
+
+	rc_keydown(d->rc_dev, RC_TYPE_NEC, code, st->data[5]);
+
+	return 0;
+}
+
+static int az6007_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
+{
+	pr_debug("Getting az6007 Remote Control properties\n");
+
+	rc->allowed_protos = RC_BIT_NEC;
+	rc->query          = az6007_rc_query;
+	rc->interval       = 400;
+
+	return 0;
+}
+#else
+	#define az6007_get_rc_config NULL
+#endif
+
+static int az6007_ci_read_attribute_mem(struct dvb_ca_en50221 *ca,
+					int slot,
+					int address)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct az6007_device_state *state = d_to_priv(d);
+
+	int ret;
+	u8 req;
+	u16 value;
+	u16 index;
+	int blen;
+	u8 *b;
+
+	if (slot != 0)
+		return -EINVAL;
+
+	b = kmalloc(12, GFP_KERNEL);
+	if (!b)
+		return -ENOMEM;
+
+	mutex_lock(&state->ca_mutex);
+
+	req = 0xC1;
+	value = address;
+	index = 0;
+	blen = 1;
+
+	ret = az6007_read(d, req, value, index, b, blen);
+	if (ret < 0) {
+		pr_warn("usb in operation failed. (%d)\n", ret);
+		ret = -EINVAL;
+	} else {
+		ret = b[0];
+	}
+
+	mutex_unlock(&state->ca_mutex);
+	kfree(b);
+	return ret;
+}
+
+static int az6007_ci_write_attribute_mem(struct dvb_ca_en50221 *ca,
+					 int slot,
+					 int address,
+					 u8 value)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct az6007_device_state *state = d_to_priv(d);
+
+	int ret;
+	u8 req;
+	u16 value1;
+	u16 index;
+	int blen;
+
+	pr_debug("%s(), slot %d\n", __func__, slot);
+	if (slot != 0)
+		return -EINVAL;
+
+	mutex_lock(&state->ca_mutex);
+	req = 0xC2;
+	value1 = address;
+	index = value;
+	blen = 0;
+
+	ret = az6007_write(d, req, value1, index, NULL, blen);
+	if (ret != 0)
+		pr_warn("usb out operation failed. (%d)\n", ret);
+
+	mutex_unlock(&state->ca_mutex);
+	return ret;
+}
+
+static int az6007_ci_read_cam_control(struct dvb_ca_en50221 *ca,
+				      int slot,
+				      u8 address)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct az6007_device_state *state = d_to_priv(d);
+
+	int ret;
+	u8 req;
+	u16 value;
+	u16 index;
+	int blen;
+	u8 *b;
+
+	if (slot != 0)
+		return -EINVAL;
+
+	b = kmalloc(12, GFP_KERNEL);
+	if (!b)
+		return -ENOMEM;
+
+	mutex_lock(&state->ca_mutex);
+
+	req = 0xC3;
+	value = address;
+	index = 0;
+	blen = 2;
+
+	ret = az6007_read(d, req, value, index, b, blen);
+	if (ret < 0) {
+		pr_warn("usb in operation failed. (%d)\n", ret);
+		ret = -EINVAL;
+	} else {
+		if (b[0] == 0)
+			pr_warn("Read CI IO error\n");
+
+		ret = b[1];
+		pr_debug("read cam data = %x from 0x%x\n", b[1], value);
+	}
+
+	mutex_unlock(&state->ca_mutex);
+	kfree(b);
+	return ret;
+}
+
+static int az6007_ci_write_cam_control(struct dvb_ca_en50221 *ca,
+				       int slot,
+				       u8 address,
+				       u8 value)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct az6007_device_state *state = d_to_priv(d);
+
+	int ret;
+	u8 req;
+	u16 value1;
+	u16 index;
+	int blen;
+
+	if (slot != 0)
+		return -EINVAL;
+
+	mutex_lock(&state->ca_mutex);
+	req = 0xC4;
+	value1 = address;
+	index = value;
+	blen = 0;
+
+	ret = az6007_write(d, req, value1, index, NULL, blen);
+	if (ret != 0) {
+		pr_warn("usb out operation failed. (%d)\n", ret);
+		goto failed;
+	}
+
+failed:
+	mutex_unlock(&state->ca_mutex);
+	return ret;
+}
+
+static int CI_CamReady(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+
+	int ret;
+	u8 req;
+	u16 value;
+	u16 index;
+	int blen;
+	u8 *b;
+
+	b = kmalloc(12, GFP_KERNEL);
+	if (!b)
+		return -ENOMEM;
+
+	req = 0xC8;
+	value = 0;
+	index = 0;
+	blen = 1;
+
+	ret = az6007_read(d, req, value, index, b, blen);
+	if (ret < 0) {
+		pr_warn("usb in operation failed. (%d)\n", ret);
+		ret = -EIO;
+	} else{
+		ret = b[0];
+	}
+	kfree(b);
+	return ret;
+}
+
+static int az6007_ci_slot_reset(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct az6007_device_state *state = d_to_priv(d);
+
+	int ret, i;
+	u8 req;
+	u16 value;
+	u16 index;
+	int blen;
+
+	mutex_lock(&state->ca_mutex);
+
+	req = 0xC6;
+	value = 1;
+	index = 0;
+	blen = 0;
+
+	ret = az6007_write(d, req, value, index, NULL, blen);
+	if (ret != 0) {
+		pr_warn("usb out operation failed. (%d)\n", ret);
+		goto failed;
+	}
+
+	msleep(500);
+	req = 0xC6;
+	value = 0;
+	index = 0;
+	blen = 0;
+
+	ret = az6007_write(d, req, value, index, NULL, blen);
+	if (ret != 0) {
+		pr_warn("usb out operation failed. (%d)\n", ret);
+		goto failed;
+	}
+
+	for (i = 0; i < 15; i++) {
+		msleep(100);
+
+		if (CI_CamReady(ca, slot)) {
+			pr_debug("CAM Ready\n");
+			break;
+		}
+	}
+	msleep(5000);
+
+failed:
+	mutex_unlock(&state->ca_mutex);
+	return ret;
+}
+
+static int az6007_ci_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
+{
+	return 0;
+}
+
+static int az6007_ci_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct az6007_device_state *state = d_to_priv(d);
+
+	int ret;
+	u8 req;
+	u16 value;
+	u16 index;
+	int blen;
+
+	pr_debug("%s()\n", __func__);
+	mutex_lock(&state->ca_mutex);
+	req = 0xC7;
+	value = 1;
+	index = 0;
+	blen = 0;
+
+	ret = az6007_write(d, req, value, index, NULL, blen);
+	if (ret != 0) {
+		pr_warn("usb out operation failed. (%d)\n", ret);
+		goto failed;
+	}
+
+failed:
+	mutex_unlock(&state->ca_mutex);
+	return ret;
+}
+
+static int az6007_ci_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
+{
+	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
+	struct az6007_device_state *state = d_to_priv(d);
+	int ret;
+	u8 req;
+	u16 value;
+	u16 index;
+	int blen;
+	u8 *b;
+
+	b = kmalloc(12, GFP_KERNEL);
+	if (!b)
+		return -ENOMEM;
+	mutex_lock(&state->ca_mutex);
+
+	req = 0xC5;
+	value = 0;
+	index = 0;
+	blen = 1;
+
+	ret = az6007_read(d, req, value, index, b, blen);
+	if (ret < 0) {
+		pr_warn("usb in operation failed. (%d)\n", ret);
+		ret = -EIO;
+	} else
+		ret = 0;
+
+	if (!ret && b[0] == 1) {
+		ret = DVB_CA_EN50221_POLL_CAM_PRESENT |
+		      DVB_CA_EN50221_POLL_CAM_READY;
+	}
+
+	mutex_unlock(&state->ca_mutex);
+	kfree(b);
+	return ret;
+}
+
+
+static void az6007_ci_uninit(struct dvb_usb_device *d)
+{
+	struct az6007_device_state *state;
+
+	pr_debug("%s()\n", __func__);
+
+	if (NULL == d)
+		return;
+
+	state = d_to_priv(d);
+	if (NULL == state)
+		return;
+
+	if (NULL == state->ca.data)
+		return;
+
+	dvb_ca_en50221_release(&state->ca);
+
+	memset(&state->ca, 0, sizeof(state->ca));
+}
+
+
+static int az6007_ci_init(struct dvb_usb_adapter *adap)
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+	struct az6007_device_state *state = adap_to_priv(adap);
+	int ret;
+
+	pr_debug("%s()\n", __func__);
+
+	mutex_init(&state->ca_mutex);
+	state->ca.owner			= THIS_MODULE;
+	state->ca.read_attribute_mem	= az6007_ci_read_attribute_mem;
+	state->ca.write_attribute_mem	= az6007_ci_write_attribute_mem;
+	state->ca.read_cam_control	= az6007_ci_read_cam_control;
+	state->ca.write_cam_control	= az6007_ci_write_cam_control;
+	state->ca.slot_reset		= az6007_ci_slot_reset;
+	state->ca.slot_shutdown		= az6007_ci_slot_shutdown;
+	state->ca.slot_ts_enable	= az6007_ci_slot_ts_enable;
+	state->ca.poll_slot_status	= az6007_ci_poll_slot_status;
+	state->ca.data			= d;
+
+	ret = dvb_ca_en50221_init(&adap->dvb_adap,
+				  &state->ca,
+				  0, /* flags */
+				  1);/* n_slots */
+	if (ret != 0) {
+		pr_err("Cannot initialize CI: Error %d.\n", ret);
+		memset(&state->ca, 0, sizeof(state->ca));
+		return ret;
+	}
+
+	pr_debug("CI initialized.\n");
+
+	return 0;
+}
+
+static int az6007_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6])
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+	struct az6007_device_state *st = adap_to_priv(adap);
+	int ret;
+
+	ret = az6007_read(d, AZ6007_READ_DATA, 6, 0, st->data, 6);
+	memcpy(mac, st->data, 6);
+
+	if (ret > 0)
+		pr_debug("%s: mac is %pM\n", __func__, mac);
+
+	return ret;
+}
+
+static int az6007_frontend_attach(struct dvb_usb_adapter *adap)
+{
+	struct az6007_device_state *st = adap_to_priv(adap);
+	struct dvb_usb_device *d = adap_to_d(adap);
+
+	pr_debug("attaching demod drxk\n");
+
+	adap->fe[0] = dvb_attach(drxk_attach, &terratec_h7_drxk,
+				 &d->i2c_adap);
+	if (!adap->fe[0])
+		return -EINVAL;
+
+	adap->fe[0]->sec_priv = adap;
+	st->gate_ctrl = adap->fe[0]->ops.i2c_gate_ctrl;
+	adap->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
+
+	az6007_ci_init(adap);
+
+	return 0;
+}
+
+static int az6007_cablestar_hdci_frontend_attach(struct dvb_usb_adapter *adap)
+{
+	struct az6007_device_state *st = adap_to_priv(adap);
+	struct dvb_usb_device *d = adap_to_d(adap);
+
+	pr_debug("attaching demod drxk\n");
+
+	adap->fe[0] = dvb_attach(drxk_attach, &cablestar_hdci_drxk,
+				 &d->i2c_adap);
+	if (!adap->fe[0])
+		return -EINVAL;
+
+	adap->fe[0]->sec_priv = adap;
+	st->gate_ctrl = adap->fe[0]->ops.i2c_gate_ctrl;
+	adap->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
+
+	az6007_ci_init(adap);
+
+	return 0;
+}
+
+static int az6007_tuner_attach(struct dvb_usb_adapter *adap)
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+
+	pr_debug("attaching tuner mt2063\n");
+
+	/* Attach mt2063 to DVB-C frontend */
+	if (adap->fe[0]->ops.i2c_gate_ctrl)
+		adap->fe[0]->ops.i2c_gate_ctrl(adap->fe[0], 1);
+	if (!dvb_attach(mt2063_attach, adap->fe[0],
+			&az6007_mt2063_config,
+			&d->i2c_adap))
+		return -EINVAL;
+
+	if (adap->fe[0]->ops.i2c_gate_ctrl)
+		adap->fe[0]->ops.i2c_gate_ctrl(adap->fe[0], 0);
+
+	return 0;
+}
+
+static int az6007_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+	struct az6007_device_state *state = d_to_priv(d);
+	int ret;
+
+	pr_debug("%s()\n", __func__);
+
+	if (!state->warm) {
+		mutex_init(&state->mutex);
+
+		ret = az6007_write(d, AZ6007_POWER, 0, 2, NULL, 0);
+		if (ret < 0)
+			return ret;
+		msleep(60);
+		ret = az6007_write(d, AZ6007_POWER, 1, 4, NULL, 0);
+		if (ret < 0)
+			return ret;
+		msleep(100);
+		ret = az6007_write(d, AZ6007_POWER, 1, 3, NULL, 0);
+		if (ret < 0)
+			return ret;
+		msleep(20);
+		ret = az6007_write(d, AZ6007_POWER, 1, 4, NULL, 0);
+		if (ret < 0)
+			return ret;
+
+		msleep(400);
+		ret = az6007_write(d, FX2_SCON1, 0, 3, NULL, 0);
+		if (ret < 0)
+			return ret;
+		msleep(150);
+		ret = az6007_write(d, FX2_SCON1, 1, 3, NULL, 0);
+		if (ret < 0)
+			return ret;
+		msleep(430);
+		ret = az6007_write(d, AZ6007_POWER, 0, 0, NULL, 0);
+		if (ret < 0)
+			return ret;
+
+		state->warm = true;
+
+		return 0;
+	}
+
+	if (!onoff)
+		return 0;
+
+	az6007_write(d, AZ6007_POWER, 0, 0, NULL, 0);
+	az6007_write(d, AZ6007_TS_THROUGH, 0, 0, NULL, 0);
+
+	return 0;
+}
+
+/* I2C */
+static int az6007_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
+			   int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	struct az6007_device_state *st = d_to_priv(d);
+	int i, j, len;
+	int ret = 0;
+	u16 index;
+	u16 value;
+	int length;
+	u8 req, addr;
+
+	if (mutex_lock_interruptible(&st->mutex) < 0)
+		return -EAGAIN;
+
+	for (i = 0; i < num; i++) {
+		addr = msgs[i].addr << 1;
+		if (((i + 1) < num)
+		    && (msgs[i].len == 1)
+		    && ((msgs[i].flags & I2C_M_RD) != I2C_M_RD)
+		    && (msgs[i + 1].flags & I2C_M_RD)
+		    && (msgs[i].addr == msgs[i + 1].addr)) {
+			/*
+			 * A write + read xfer for the same address, where
+			 * the first xfer has just 1 byte length.
+			 * Need to join both into one operation
+			 */
+			if (az6007_xfer_debug)
+				printk(KERN_DEBUG "az6007: I2C W/R addr=0x%x len=%d/%d\n",
+				       addr, msgs[i].len, msgs[i + 1].len);
+			req = AZ6007_I2C_RD;
+			index = msgs[i].buf[0];
+			value = addr | (1 << 8);
+			length = 6 + msgs[i + 1].len;
+			len = msgs[i + 1].len;
+			ret = __az6007_read(d->udev, req, value, index,
+					    st->data, length);
+			if (ret >= len) {
+				for (j = 0; j < len; j++)
+					msgs[i + 1].buf[j] = st->data[j + 5];
+			} else
+				ret = -EIO;
+			i++;
+		} else if (!(msgs[i].flags & I2C_M_RD)) {
+			/* write bytes */
+			if (az6007_xfer_debug)
+				printk(KERN_DEBUG "az6007: I2C W addr=0x%x len=%d\n",
+				       addr, msgs[i].len);
+			req = AZ6007_I2C_WR;
+			index = msgs[i].buf[0];
+			value = addr | (1 << 8);
+			length = msgs[i].len - 1;
+			len = msgs[i].len - 1;
+			for (j = 0; j < len; j++)
+				st->data[j] = msgs[i].buf[j + 1];
+			ret =  __az6007_write(d->udev, req, value, index,
+					      st->data, length);
+		} else {
+			/* read bytes */
+			if (az6007_xfer_debug)
+				printk(KERN_DEBUG "az6007: I2C R addr=0x%x len=%d\n",
+				       addr, msgs[i].len);
+			req = AZ6007_I2C_RD;
+			index = msgs[i].buf[0];
+			value = addr;
+			length = msgs[i].len + 6;
+			len = msgs[i].len;
+			ret = __az6007_read(d->udev, req, value, index,
+					    st->data, length);
+			for (j = 0; j < len; j++)
+				msgs[i].buf[j] = st->data[j + 5];
+		}
+		if (ret < 0)
+			goto err;
+	}
+err:
+	mutex_unlock(&st->mutex);
+
+	if (ret < 0) {
+		pr_info("%s ERROR: %i\n", __func__, ret);
+		return ret;
+	}
+	return num;
+}
+
+static u32 az6007_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm az6007_i2c_algo = {
+	.master_xfer = az6007_i2c_xfer,
+	.functionality = az6007_i2c_func,
+};
+
+static int az6007_identify_state(struct dvb_usb_device *d, const char **name)
+{
+	int ret;
+	u8 *mac;
+
+	pr_debug("Identifying az6007 state\n");
+
+	mac = kmalloc(6, GFP_ATOMIC);
+	if (!mac)
+		return -ENOMEM;
+
+	/* Try to read the mac address */
+	ret = __az6007_read(d->udev, AZ6007_READ_DATA, 6, 0, mac, 6);
+	if (ret == 6)
+		ret = WARM;
+	else
+		ret = COLD;
+
+	kfree(mac);
+
+	if (ret == COLD) {
+		__az6007_write(d->udev, 0x09, 1, 0, NULL, 0);
+		__az6007_write(d->udev, 0x00, 0, 0, NULL, 0);
+		__az6007_write(d->udev, 0x00, 0, 0, NULL, 0);
+	}
+
+	pr_debug("Device is on %s state\n",
+		 ret == WARM ? "warm" : "cold");
+	return ret;
+}
+
+static void az6007_usb_disconnect(struct usb_interface *intf)
+{
+	struct dvb_usb_device *d = usb_get_intfdata(intf);
+	az6007_ci_uninit(d);
+	dvb_usbv2_disconnect(intf);
+}
+
+static int az6007_download_firmware(struct dvb_usb_device *d,
+	const struct firmware *fw)
+{
+	pr_debug("Loading az6007 firmware\n");
+
+	return cypress_load_firmware(d->udev, fw, CYPRESS_FX2);
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties az6007_props = {
+	.driver_name         = KBUILD_MODNAME,
+	.owner               = THIS_MODULE,
+	.firmware            = AZ6007_FIRMWARE,
+
+	.adapter_nr          = adapter_nr,
+	.size_of_priv        = sizeof(struct az6007_device_state),
+	.i2c_algo            = &az6007_i2c_algo,
+	.tuner_attach        = az6007_tuner_attach,
+	.frontend_attach     = az6007_frontend_attach,
+	.streaming_ctrl      = az6007_streaming_ctrl,
+	.get_rc_config       = az6007_get_rc_config,
+	.read_mac_address    = az6007_read_mac_addr,
+	.download_firmware   = az6007_download_firmware,
+	.identify_state	     = az6007_identify_state,
+	.power_ctrl          = az6007_power_ctrl,
+	.num_adapters        = 1,
+	.adapter             = {
+		{ .stream = DVB_USB_STREAM_BULK(0x02, 10, 4096), }
+	}
+};
+
+static struct dvb_usb_device_properties az6007_cablestar_hdci_props = {
+	.driver_name         = KBUILD_MODNAME,
+	.owner               = THIS_MODULE,
+	.firmware            = AZ6007_FIRMWARE,
+
+	.adapter_nr          = adapter_nr,
+	.size_of_priv        = sizeof(struct az6007_device_state),
+	.i2c_algo            = &az6007_i2c_algo,
+	.tuner_attach        = az6007_tuner_attach,
+	.frontend_attach     = az6007_cablestar_hdci_frontend_attach,
+	.streaming_ctrl      = az6007_streaming_ctrl,
+/* ditch get_rc_config as it can't work (TS35 remote, I believe it's rc5) */
+	.get_rc_config       = NULL,
+	.read_mac_address    = az6007_read_mac_addr,
+	.download_firmware   = az6007_download_firmware,
+	.identify_state	     = az6007_identify_state,
+	.power_ctrl          = az6007_power_ctrl,
+	.num_adapters        = 1,
+	.adapter             = {
+		{ .stream = DVB_USB_STREAM_BULK(0x02, 10, 4096), }
+	}
+};
+
+static struct usb_device_id az6007_usb_table[] = {
+	{DVB_USB_DEVICE(USB_VID_AZUREWAVE, USB_PID_AZUREWAVE_6007,
+		&az6007_props, "Azurewave 6007", RC_MAP_EMPTY)},
+	{DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_H7,
+		&az6007_props, "Terratec H7", RC_MAP_NEC_TERRATEC_CINERGY_XS)},
+	{DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_H7_2,
+		&az6007_props, "Terratec H7", RC_MAP_NEC_TERRATEC_CINERGY_XS)},
+	{DVB_USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_USB2_CABLESTAR_HDCI,
+		&az6007_cablestar_hdci_props, "Technisat CableStar Combo HD CI", RC_MAP_EMPTY)},
+	{0},
+};
+
+MODULE_DEVICE_TABLE(usb, az6007_usb_table);
+
+static int az6007_suspend(struct usb_interface *intf, pm_message_t msg)
+{
+	struct dvb_usb_device *d = usb_get_intfdata(intf);
+
+	az6007_ci_uninit(d);
+	return dvb_usbv2_suspend(intf, msg);
+}
+
+static int az6007_resume(struct usb_interface *intf)
+{
+	struct dvb_usb_device *d = usb_get_intfdata(intf);
+	struct dvb_usb_adapter *adap = &d->adapter[0];
+
+	az6007_ci_init(adap);
+	return dvb_usbv2_resume(intf);
+}
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver az6007_usb_driver = {
+	.name		= KBUILD_MODNAME,
+	.id_table	= az6007_usb_table,
+	.probe		= dvb_usbv2_probe,
+	.disconnect	= az6007_usb_disconnect,
+	.no_dynamic_id	= 1,
+	.soft_unbind	= 1,
+	/*
+	 * FIXME: need to implement reset_resume, likely with
+	 * dvb-usb-v2 core support
+	 */
+	.suspend	= az6007_suspend,
+	.resume		= az6007_resume,
+};
+
+module_usb_driver(az6007_usb_driver);
+
+MODULE_AUTHOR("Henry Wang <Henry.wang@AzureWave.com>");
+MODULE_AUTHOR("Mauro Carvalho Chehab");
+MODULE_DESCRIPTION("Driver for AzureWave 6007 DVB-C/T USB2.0 and clones");
+MODULE_VERSION("2.0");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(AZ6007_FIRMWARE);

drivers/media/usb/dvb-usb-v2/ce6230.c

@@ -0,0 +1,292 @@
+/*
+ * Intel CE6230 DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "ce6230.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
+{
+	int ret;
+	unsigned int pipe;
+	u8 request;
+	u8 requesttype;
+	u16 value;
+	u16 index;
+	u8 *buf;
+
+	request = req->cmd;
+	value = req->value;
+	index = req->index;
+
+	switch (req->cmd) {
+	case I2C_READ:
+	case DEMOD_READ:
+	case REG_READ:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+		break;
+	case I2C_WRITE:
+	case DEMOD_WRITE:
+	case REG_WRITE:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+		break;
+	default:
+		dev_err(&d->udev->dev, "%s: unknown command=%02x\n",
+				KBUILD_MODNAME, req->cmd);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	buf = kmalloc(req->data_len, GFP_KERNEL);
+	if (!buf) {
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
+		/* write */
+		memcpy(buf, req->data, req->data_len);
+		pipe = usb_sndctrlpipe(d->udev, 0);
+	} else {
+		/* read */
+		pipe = usb_rcvctrlpipe(d->udev, 0);
+	}
+
+	msleep(1); /* avoid I2C errors */
+
+	ret = usb_control_msg(d->udev, pipe, request, requesttype, value, index,
+			buf, req->data_len, CE6230_USB_TIMEOUT);
+
+	dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, value, index,
+			buf, req->data_len);
+
+	if (ret < 0)
+		dev_err(&d->udev->dev, "%s: usb_control_msg() failed=%d\n",
+				KBUILD_MODNAME, ret);
+	else
+		ret = 0;
+
+	/* read request, copy returned data to return buf */
+	if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
+		memcpy(req->data, buf, req->data_len);
+
+	kfree(buf);
+error:
+	return ret;
+}
+
+/* I2C */
+static struct zl10353_config ce6230_zl10353_config;
+
+static int ce6230_i2c_master_xfer(struct i2c_adapter *adap,
+		struct i2c_msg msg[], int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	int ret = 0, i = 0;
+	struct usb_req req;
+
+	if (num > 2)
+		return -EOPNOTSUPP;
+
+	memset(&req, 0, sizeof(req));
+
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+		return -EAGAIN;
+
+	while (i < num) {
+		if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
+			if (msg[i].addr ==
+				ce6230_zl10353_config.demod_address) {
+				req.cmd = DEMOD_READ;
+				req.value = msg[i].addr >> 1;
+				req.index = msg[i].buf[0];
+				req.data_len = msg[i+1].len;
+				req.data = &msg[i+1].buf[0];
+				ret = ce6230_ctrl_msg(d, &req);
+			} else {
+				dev_err(&d->udev->dev, "%s: I2C read not " \
+						"implemented\n",
+						KBUILD_MODNAME);
+				ret = -EOPNOTSUPP;
+			}
+			i += 2;
+		} else {
+			if (msg[i].addr ==
+				ce6230_zl10353_config.demod_address) {
+				req.cmd = DEMOD_WRITE;
+				req.value = msg[i].addr >> 1;
+				req.index = msg[i].buf[0];
+				req.data_len = msg[i].len-1;
+				req.data = &msg[i].buf[1];
+				ret = ce6230_ctrl_msg(d, &req);
+			} else {
+				req.cmd = I2C_WRITE;
+				req.value = 0x2000 + (msg[i].addr >> 1);
+				req.index = 0x0000;
+				req.data_len = msg[i].len;
+				req.data = &msg[i].buf[0];
+				ret = ce6230_ctrl_msg(d, &req);
+			}
+			i += 1;
+		}
+		if (ret)
+			break;
+	}
+
+	mutex_unlock(&d->i2c_mutex);
+	return ret ? ret : i;
+}
+
+static u32 ce6230_i2c_functionality(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm ce6230_i2c_algorithm = {
+	.master_xfer   = ce6230_i2c_master_xfer,
+	.functionality = ce6230_i2c_functionality,
+};
+
+/* Callbacks for DVB USB */
+static struct zl10353_config ce6230_zl10353_config = {
+	.demod_address = 0x1e,
+	.adc_clock = 450000,
+	.if2 = 45700,
+	.no_tuner = 1,
+	.parallel_ts = 1,
+	.clock_ctl_1 = 0x34,
+	.pll_0 = 0x0e,
+};
+
+static int ce6230_zl10353_frontend_attach(struct dvb_usb_adapter *adap)
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+
+	dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+	adap->fe[0] = dvb_attach(zl10353_attach, &ce6230_zl10353_config,
+			&d->i2c_adap);
+	if (adap->fe[0] == NULL)
+		return -ENODEV;
+
+	return 0;
+}
+
+static struct mxl5005s_config ce6230_mxl5003s_config = {
+	.i2c_address     = 0xc6,
+	.if_freq         = IF_FREQ_4570000HZ,
+	.xtal_freq       = CRYSTAL_FREQ_16000000HZ,
+	.agc_mode        = MXL_SINGLE_AGC,
+	.tracking_filter = MXL_TF_DEFAULT,
+	.rssi_enable     = MXL_RSSI_ENABLE,
+	.cap_select      = MXL_CAP_SEL_ENABLE,
+	.div_out         = MXL_DIV_OUT_4,
+	.clock_out       = MXL_CLOCK_OUT_DISABLE,
+	.output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
+	.top		 = MXL5005S_TOP_25P2,
+	.mod_mode        = MXL_DIGITAL_MODE,
+	.if_mode         = MXL_ZERO_IF,
+	.AgcMasterByte   = 0x00,
+};
+
+static int ce6230_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+	int ret;
+
+	dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+	ret = dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap,
+			&ce6230_mxl5003s_config) == NULL ? -ENODEV : 0;
+	return ret;
+}
+
+static int ce6230_power_ctrl(struct dvb_usb_device *d, int onoff)
+{
+	int ret;
+
+	dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
+
+	/* InterfaceNumber 1 / AlternateSetting 0     idle
+	   InterfaceNumber 1 / AlternateSetting 1     streaming */
+	ret = usb_set_interface(d->udev, 1, onoff);
+	if (ret)
+		dev_err(&d->udev->dev, "%s: usb_set_interface() failed=%d\n",
+				KBUILD_MODNAME, ret);
+
+	return ret;
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties ce6230_props = {
+	.driver_name = KBUILD_MODNAME,
+	.owner = THIS_MODULE,
+	.adapter_nr = adapter_nr,
+	.bInterfaceNumber = 1,
+
+	.i2c_algo = &ce6230_i2c_algorithm,
+	.power_ctrl = ce6230_power_ctrl,
+	.frontend_attach = ce6230_zl10353_frontend_attach,
+	.tuner_attach = ce6230_mxl5003s_tuner_attach,
+
+	.num_adapters = 1,
+	.adapter = {
+		{
+			.stream = {
+				.type = USB_BULK,
+				.count = 6,
+				.endpoint = 0x82,
+				.u = {
+					.bulk = {
+						.buffersize = (16 * 512),
+					}
+				}
+			},
+		}
+	},
+};
+
+static const struct usb_device_id ce6230_id_table[] = {
+	{ DVB_USB_DEVICE(USB_VID_INTEL, USB_PID_INTEL_CE9500,
+		&ce6230_props, "Intel CE9500 reference design", NULL) },
+	{ DVB_USB_DEVICE(USB_VID_AVERMEDIA, USB_PID_AVERMEDIA_A310,
+		&ce6230_props, "AVerMedia A310 USB 2.0 DVB-T tuner", NULL) },
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, ce6230_id_table);
+
+static struct usb_driver ce6230_usb_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = ce6230_id_table,
+	.probe = dvb_usbv2_probe,
+	.disconnect = dvb_usbv2_disconnect,
+	.suspend = dvb_usbv2_suspend,
+	.resume = dvb_usbv2_resume,
+	.reset_resume = dvb_usbv2_reset_resume,
+	.no_dynamic_id = 1,
+	.soft_unbind = 1,
+};
+
+module_usb_driver(ce6230_usb_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Intel CE6230 driver");
+MODULE_LICENSE("GPL");

drivers/media/usb/dvb-usb-v2/ce6230.h

@@ -0,0 +1,50 @@
+/*
+ * Intel CE6230 DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef CE6230_H
+#define CE6230_H
+
+#include "dvb_usb.h"
+#include "zl10353.h"
+#include "mxl5005s.h"
+
+#define CE6230_USB_TIMEOUT 1000
+
+struct usb_req {
+	u8  cmd;       /* [1] */
+	u16 value;     /* [2|3] */
+	u16 index;     /* [4|5] */
+	u16 data_len;  /* [6|7] */
+	u8  *data;
+};
+
+enum ce6230_cmd {
+	CONFIG_READ          = 0xd0, /* rd 0 (unclear) */
+	UNKNOWN_WRITE        = 0xc7, /* wr 7 (unclear) */
+	I2C_READ             = 0xd9, /* rd 9 (unclear) */
+	I2C_WRITE            = 0xca, /* wr a */
+	DEMOD_READ           = 0xdb, /* rd b */
+	DEMOD_WRITE          = 0xcc, /* wr c */
+	REG_READ             = 0xde, /* rd e */
+	REG_WRITE            = 0xcf, /* wr f */
+};
+
+#endif

drivers/media/usb/dvb-usb-v2/dvb_usb.h

@@ -0,0 +1,409 @@
+/*
+ * DVB USB framework
+ *
+ * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@desy.de>
+ * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License along
+ *    with this program; if not, write to the Free Software Foundation, Inc.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef DVB_USB_H
+#define DVB_USB_H
+
+#include <linux/usb/input.h>
+#include <linux/firmware.h>
+#include <media/rc-core.h>
+
+#include "dvb_frontend.h"
+#include "dvb_demux.h"
+#include "dvb_net.h"
+#include "dmxdev.h"
+#include "dvb-usb-ids.h"
+
+/*
+ * device file: /dev/dvb/adapter[0-1]/frontend[0-2]
+ *
+ * |-- device
+ * |   |-- adapter0
+ * |   |   |-- frontend0
+ * |   |   |-- frontend1
+ * |   |   `-- frontend2
+ * |   `-- adapter1
+ * |       |-- frontend0
+ * |       |-- frontend1
+ * |       `-- frontend2
+ *
+ *
+ * Commonly used variable names:
+ * d = pointer to device (struct dvb_usb_device *)
+ * adap = pointer to adapter (struct dvb_usb_adapter *)
+ * fe = pointer to frontend (struct dvb_frontend *)
+ *
+ * Use macros defined in that file to resolve needed pointers.
+ */
+
+/* helper macros for every DVB USB driver use */
+#define adap_to_d(adap) (container_of(adap, struct dvb_usb_device, \
+		adapter[adap->id]))
+#define adap_to_priv(adap) (adap_to_d(adap)->priv)
+#define fe_to_adap(fe) ((struct dvb_usb_adapter *) ((fe)->dvb->priv))
+#define fe_to_d(fe) (adap_to_d(fe_to_adap(fe)))
+#define fe_to_priv(fe) (fe_to_d(fe)->priv)
+#define d_to_priv(d) (d->priv)
+
+#define dvb_usb_dbg_usb_control_msg(udev, r, t, v, i, b, l) { \
+	char *direction; \
+	if (t == (USB_TYPE_VENDOR | USB_DIR_OUT)) \
+		direction = ">>>"; \
+	else \
+		direction = "<<<"; \
+	dev_dbg(&udev->dev, "%s: %02x %02x %02x %02x %02x %02x %02x %02x " \
+			"%s %*ph\n",  __func__, t, r, v & 0xff, v >> 8, \
+			i & 0xff, i >> 8, l & 0xff, l >> 8, direction, l, b); \
+}
+
+#define DVB_USB_STREAM_BULK(endpoint_, count_, size_) { \
+	.type = USB_BULK, \
+	.count = count_, \
+	.endpoint = endpoint_, \
+	.u = { \
+		.bulk = { \
+			.buffersize = size_, \
+		} \
+	} \
+}
+
+#define DVB_USB_STREAM_ISOC(endpoint_, count_, frames_, size_, interval_) { \
+	.type = USB_ISOC, \
+	.count = count_, \
+	.endpoint = endpoint_, \
+	.u = { \
+		.isoc = { \
+			.framesperurb = frames_, \
+			.framesize = size_,\
+			.interval = interval_, \
+		} \
+	} \
+}
+
+#define DVB_USB_DEVICE(vend, prod, props_, name_, rc) \
+	.match_flags = USB_DEVICE_ID_MATCH_DEVICE, \
+	.idVendor = (vend), \
+	.idProduct = (prod), \
+	.driver_info = (kernel_ulong_t) &((const struct dvb_usb_driver_info) { \
+		.props = (props_), \
+		.name = (name_), \
+		.rc_map = (rc), \
+	})
+
+struct dvb_usb_device;
+struct dvb_usb_adapter;
+
+/**
+ * structure for carrying all needed data from the device driver to the general
+ * dvb usb routines
+ * @name: device name
+ * @rc_map: name of rc codes table
+ * @props: structure containing all device properties
+ */
+struct dvb_usb_driver_info {
+	const char *name;
+	const char *rc_map;
+	const struct dvb_usb_device_properties *props;
+};
+
+/**
+ * structure for remote controller configuration
+ * @map_name: name of rc codes table
+ * @allowed_protos: protocol(s) supported by the driver
+ * @change_protocol: callback to change protocol
+ * @query: called to query an event from the device
+ * @interval: time in ms between two queries
+ * @driver_type: used to point if a device supports raw mode
+ * @bulk_mode: device supports bulk mode for rc (disable polling mode)
+ */
+struct dvb_usb_rc {
+	const char *map_name;
+	u64 allowed_protos;
+	int (*change_protocol)(struct rc_dev *dev, u64 *rc_type);
+	int (*query) (struct dvb_usb_device *d);
+	unsigned int interval;
+	enum rc_driver_type driver_type;
+	bool bulk_mode;
+};
+
+/**
+ * usb streaming configration for adapter
+ * @type: urb type
+ * @count: count of used urbs
+ * @endpoint: stream usb endpoint number
+ */
+struct usb_data_stream_properties {
+#define USB_BULK  1
+#define USB_ISOC  2
+	u8 type;
+	u8 count;
+	u8 endpoint;
+
+	union {
+		struct {
+			unsigned int buffersize; /* per URB */
+		} bulk;
+		struct {
+			int framesperurb;
+			int framesize;
+			int interval;
+		} isoc;
+	} u;
+};
+
+/**
+ * properties of dvb usb device adapter
+ * @caps: adapter capabilities
+ * @pid_filter_count: pid count of adapter pid-filter
+ * @pid_filter_ctrl: called to enable/disable pid-filter
+ * @pid_filter: called to set/unset pid for filtering
+ * @stream: adapter usb stream configuration
+ */
+#define MAX_NO_OF_FE_PER_ADAP 3
+struct dvb_usb_adapter_properties {
+#define DVB_USB_ADAP_HAS_PID_FILTER               0x01
+#define DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF 0x02
+#define DVB_USB_ADAP_NEED_PID_FILTERING           0x04
+	u8 caps;
+
+	u8 pid_filter_count;
+	int (*pid_filter_ctrl) (struct dvb_usb_adapter *, int);
+	int (*pid_filter) (struct dvb_usb_adapter *, int, u16, int);
+
+	struct usb_data_stream_properties stream;
+};
+
+/**
+ * struct dvb_usb_device_properties - properties of a dvb-usb-device
+ * @driver_name: name of the owning driver module
+ * @owner: owner of the dvb_adapter
+ * @adapter_nr: values from the DVB_DEFINE_MOD_OPT_ADAPTER_NR() macro
+ * @bInterfaceNumber: usb interface number driver binds
+ * @size_of_priv: bytes allocated for the driver private data
+ * @generic_bulk_ctrl_endpoint: bulk control endpoint number for sent
+ * @generic_bulk_ctrl_endpoint_response: bulk control endpoint number for
+ *  receive
+ * @generic_bulk_ctrl_delay: delay between bulk control sent and receive message
+ * @identify_state: called to determine the firmware state (cold or warm) and
+ *  return possible firmware file name to be loaded
+ * @firmware: name of the firmware file to be loaded
+ * @download_firmware: called to download the firmware
+ * @i2c_algo: i2c_algorithm if the device has i2c-adapter
+ * @num_adapters: dvb usb device adapter count
+ * @get_adapter_count: called to resolve adapter count
+ * @adapter: array of all adapter properties of device
+ * @power_ctrl: called to enable/disable power of the device
+ * @read_config: called to resolve device configuration
+ * @read_mac_address: called to resolve adapter mac-address
+ * @frontend_attach: called to attach the possible frontends
+ * @frontend_detach: called to detach the possible frontends
+ * @tuner_attach: called to attach the possible tuners
+ * @frontend_ctrl: called to power on/off active frontend
+ * @streaming_ctrl: called to start/stop the usb streaming of adapter
+ * @init: called after adapters are created in order to finalize device
+ *  configuration
+ * @exit: called when driver is unloaded
+ * @get_rc_config: called to resolve used remote controller configuration
+ * @get_stream_config: called to resolve input and output stream configuration
+ *  of the adapter just before streaming is started. input stream is transport
+ *  stream from the demodulator and output stream is usb stream to host.
+ */
+#define MAX_NO_OF_ADAPTER_PER_DEVICE 2
+struct dvb_usb_device_properties {
+	const char *driver_name;
+	struct module *owner;
+	short *adapter_nr;
+
+	u8 bInterfaceNumber;
+	unsigned int size_of_priv;
+	u8 generic_bulk_ctrl_endpoint;
+	u8 generic_bulk_ctrl_endpoint_response;
+	unsigned int generic_bulk_ctrl_delay;
+
+#define WARM                  0
+#define COLD                  1
+	int (*identify_state) (struct dvb_usb_device *, const char **);
+	const char *firmware;
+#define RECONNECTS_USB        1
+	int (*download_firmware) (struct dvb_usb_device *,
+			const struct firmware *);
+
+	struct i2c_algorithm *i2c_algo;
+
+	unsigned int num_adapters;
+	int (*get_adapter_count) (struct dvb_usb_device *);
+	struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE];
+	int (*power_ctrl) (struct dvb_usb_device *, int);
+	int (*read_config) (struct dvb_usb_device *d);
+	int (*read_mac_address) (struct dvb_usb_adapter *, u8 []);
+	int (*frontend_attach) (struct dvb_usb_adapter *);
+	int (*frontend_detach)(struct dvb_usb_adapter *);
+	int (*tuner_attach) (struct dvb_usb_adapter *);
+	int (*tuner_detach)(struct dvb_usb_adapter *);
+	int (*frontend_ctrl) (struct dvb_frontend *, int);
+	int (*streaming_ctrl) (struct dvb_frontend *, int);
+	int (*init) (struct dvb_usb_device *);
+	void (*exit) (struct dvb_usb_device *);
+	int (*get_rc_config) (struct dvb_usb_device *, struct dvb_usb_rc *);
+#define DVB_USB_FE_TS_TYPE_188        0
+#define DVB_USB_FE_TS_TYPE_204        1
+#define DVB_USB_FE_TS_TYPE_RAW        2
+	int (*get_stream_config) (struct dvb_frontend *,  u8 *,
+			struct usb_data_stream_properties *);
+};
+
+/**
+ * generic object of an usb stream
+ * @buf_num: number of buffer allocated
+ * @buf_size: size of each buffer in buf_list
+ * @buf_list: array containing all allocate buffers for streaming
+ * @dma_addr: list of dma_addr_t for each buffer in buf_list
+ *
+ * @urbs_initialized: number of URBs initialized
+ * @urbs_submitted: number of URBs submitted
+ */
+#define MAX_NO_URBS_FOR_DATA_STREAM 10
+struct usb_data_stream {
+	struct usb_device *udev;
+	struct usb_data_stream_properties props;
+
+#define USB_STATE_INIT    0x00
+#define USB_STATE_URB_BUF 0x01
+	u8 state;
+
+	void (*complete) (struct usb_data_stream *, u8 *, size_t);
+
+	struct urb    *urb_list[MAX_NO_URBS_FOR_DATA_STREAM];
+	int            buf_num;
+	unsigned long  buf_size;
+	u8            *buf_list[MAX_NO_URBS_FOR_DATA_STREAM];
+	dma_addr_t     dma_addr[MAX_NO_URBS_FOR_DATA_STREAM];
+
+	int urbs_initialized;
+	int urbs_submitted;
+
+	void *user_priv;
+};
+
+/**
+ * dvb adapter object on dvb usb device
+ * @props: pointer to adapter properties
+ * @stream: adapter the usb data stream
+ * @id: index of this adapter (starting with 0)
+ * @ts_type: transport stream, input stream, type
+ * @suspend_resume_active: set when there is ongoing suspend / resume
+ * @pid_filtering: is hardware pid_filtering used or not
+ * @feed_count: current feed count
+ * @max_feed_count: maimum feed count device can handle
+ * @dvb_adap: adapter dvb_adapter
+ * @dmxdev: adapter dmxdev
+ * @demux: adapter software demuxer
+ * @dvb_net: adapter dvb_net interfaces
+ * @sync_mutex: mutex used to sync control and streaming of the adapter
+ * @fe: adapter frontends
+ * @fe_init: rerouted frontend-init function
+ * @fe_sleep: rerouted frontend-sleep function
+ */
+struct dvb_usb_adapter {
+	const struct dvb_usb_adapter_properties *props;
+	struct usb_data_stream stream;
+	u8 id;
+	u8 ts_type;
+	bool suspend_resume_active;
+	bool pid_filtering;
+	u8 feed_count;
+	u8 max_feed_count;
+	s8 active_fe;
+#define ADAP_INIT                0
+#define ADAP_SLEEP               1
+#define ADAP_STREAMING           2
+	unsigned long state_bits;
+
+	/* dvb */
+	struct dvb_adapter   dvb_adap;
+	struct dmxdev        dmxdev;
+	struct dvb_demux     demux;
+	struct dvb_net       dvb_net;
+
+	struct dvb_frontend *fe[MAX_NO_OF_FE_PER_ADAP];
+	int (*fe_init[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *);
+	int (*fe_sleep[MAX_NO_OF_FE_PER_ADAP]) (struct dvb_frontend *);
+};
+
+/**
+ * dvb usb device object
+ * @props: device properties
+ * @name: device name
+ * @rc_map: name of rc codes table
+ * @rc_polling_active: set when RC polling is active
+ * @udev: pointer to the device's struct usb_device
+ * @rc: remote controller configuration
+ * @powered: indicated whether the device is power or not
+ * @usb_mutex: mutex for usb control messages
+ * @i2c_mutex: mutex for i2c-transfers
+ * @i2c_adap: device's i2c-adapter
+ * @rc_dev: rc device for the remote control
+ * @rc_query_work: work for polling remote
+ * @priv: private data of the actual driver (allocate by dvb usb, size defined
+ *  in size_of_priv of dvb_usb_properties).
+ */
+struct dvb_usb_device {
+	const struct dvb_usb_device_properties *props;
+	const char *name;
+	const char *rc_map;
+	bool rc_polling_active;
+	struct usb_device *udev;
+	struct dvb_usb_rc rc;
+	int powered;
+
+	/* locking */
+	struct mutex usb_mutex;
+
+	/* i2c */
+	struct mutex i2c_mutex;
+	struct i2c_adapter i2c_adap;
+
+	struct dvb_usb_adapter adapter[MAX_NO_OF_ADAPTER_PER_DEVICE];
+
+	/* remote control */
+	struct rc_dev *rc_dev;
+	char rc_phys[64];
+	struct delayed_work rc_query_work;
+
+	void *priv;
+};
+
+extern int dvb_usbv2_probe(struct usb_interface *,
+		const struct usb_device_id *);
+extern void dvb_usbv2_disconnect(struct usb_interface *);
+extern int dvb_usbv2_suspend(struct usb_interface *, pm_message_t);
+extern int dvb_usbv2_resume(struct usb_interface *);
+extern int dvb_usbv2_reset_resume(struct usb_interface *);
+
+/* the generic read/write method for device control */
+extern int dvb_usbv2_generic_rw(struct dvb_usb_device *, u8 *, u16, u8 *, u16);
+extern int dvb_usbv2_generic_write(struct dvb_usb_device *, u8 *, u16);
+/* caller must hold lock when locked versions are called */
+extern int dvb_usbv2_generic_rw_locked(struct dvb_usb_device *,
+		u8 *, u16, u8 *, u16);
+extern int dvb_usbv2_generic_write_locked(struct dvb_usb_device *, u8 *, u16);
+
+#endif

drivers/media/usb/dvb-usb-v2/dvb_usb_common.h

@@ -0,0 +1,35 @@
+/*
+ * DVB USB framework
+ *
+ * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@desy.de>
+ * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License along
+ *    with this program; if not, write to the Free Software Foundation, Inc.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef DVB_USB_COMMON_H
+#define DVB_USB_COMMON_H
+
+#include "dvb_usb.h"
+
+/* commonly used  methods */
+extern int usb_urb_initv2(struct usb_data_stream *stream,
+		const struct usb_data_stream_properties *props);
+extern int usb_urb_exitv2(struct usb_data_stream *stream);
+extern int usb_urb_submitv2(struct usb_data_stream *stream,
+		struct usb_data_stream_properties *props);
+extern int usb_urb_killv2(struct usb_data_stream *stream);
+
+#endif

drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c

@@ -0,0 +1,104 @@
+/*
+ * DVB USB framework
+ *
+ * Copyright (C) 2004-6 Patrick Boettcher <patrick.boettcher@desy.de>
+ * Copyright (C) 2012 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License along
+ *    with this program; if not, write to the Free Software Foundation, Inc.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "dvb_usb_common.h"
+
+static int dvb_usb_v2_generic_io(struct dvb_usb_device *d,
+		u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	int ret, actual_length;
+
+	if (!wbuf || !wlen || !d->props->generic_bulk_ctrl_endpoint ||
+			!d->props->generic_bulk_ctrl_endpoint_response) {
+		dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, -EINVAL);
+		return -EINVAL;
+	}
+
+	dev_dbg(&d->udev->dev, "%s: >>> %*ph\n", __func__, wlen, wbuf);
+
+	ret = usb_bulk_msg(d->udev, usb_sndbulkpipe(d->udev,
+			d->props->generic_bulk_ctrl_endpoint), wbuf, wlen,
+			&actual_length, 2000);
+	if (ret < 0)
+		dev_err(&d->udev->dev, "%s: usb_bulk_msg() failed=%d\n",
+				KBUILD_MODNAME, ret);
+	else
+		ret = actual_length != wlen ? -EIO : 0;
+
+	/* an answer is expected, and no error before */
+	if (!ret && rbuf && rlen) {
+		if (d->props->generic_bulk_ctrl_delay)
+			usleep_range(d->props->generic_bulk_ctrl_delay,
+					d->props->generic_bulk_ctrl_delay
+					+ 20000);
+
+		ret = usb_bulk_msg(d->udev, usb_rcvbulkpipe(d->udev,
+				d->props->generic_bulk_ctrl_endpoint_response),
+				rbuf, rlen, &actual_length, 2000);
+		if (ret)
+			dev_err(&d->udev->dev,
+					"%s: 2nd usb_bulk_msg() failed=%d\n",
+					KBUILD_MODNAME, ret);
+
+		dev_dbg(&d->udev->dev, "%s: <<< %*ph\n", __func__,
+				actual_length, rbuf);
+	}
+
+	return ret;
+}
+
+int dvb_usbv2_generic_rw(struct dvb_usb_device *d,
+		u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	int ret;
+
+	mutex_lock(&d->usb_mutex);
+	ret = dvb_usb_v2_generic_io(d, wbuf, wlen, rbuf, rlen);
+	mutex_unlock(&d->usb_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL(dvb_usbv2_generic_rw);
+
+int dvb_usbv2_generic_write(struct dvb_usb_device *d, u8 *buf, u16 len)
+{
+	int ret;
+
+	mutex_lock(&d->usb_mutex);
+	ret = dvb_usb_v2_generic_io(d, buf, len, NULL, 0);
+	mutex_unlock(&d->usb_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL(dvb_usbv2_generic_write);
+
+int dvb_usbv2_generic_rw_locked(struct dvb_usb_device *d,
+		u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	return dvb_usb_v2_generic_io(d, wbuf, wlen, rbuf, rlen);
+}
+EXPORT_SYMBOL(dvb_usbv2_generic_rw_locked);
+
+int dvb_usbv2_generic_write_locked(struct dvb_usb_device *d, u8 *buf, u16 len)
+{
+	return dvb_usb_v2_generic_io(d, buf, len, NULL, 0);
+}
+EXPORT_SYMBOL(dvb_usbv2_generic_write_locked);

drivers/media/usb/dvb-usb-v2/dvbsky.c

@@ -0,0 +1,460 @@
+/*
+ * Driver for DVBSky USB2.0 receiver
+ *
+ * Copyright (C) 2013 Max nibble <nibble.max@gmail.com>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dvb_usb.h"
+#include "m88ds3103.h"
+#include "m88ts2022.h"
+
+#define DVBSKY_MSG_DELAY	0/*2000*/
+#define DVBSKY_BUF_LEN	64
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+struct dvbsky_state {
+	struct mutex stream_mutex;
+	u8 ibuf[DVBSKY_BUF_LEN];
+	u8 obuf[DVBSKY_BUF_LEN];
+	u8 last_lock;
+	struct i2c_client *i2c_client_tuner;
+
+	/* fe hook functions*/
+	int (*fe_set_voltage)(struct dvb_frontend *fe,
+		fe_sec_voltage_t voltage);
+	int (*fe_read_status)(struct dvb_frontend *fe,
+		fe_status_t *status);
+};
+
+static int dvbsky_usb_generic_rw(struct dvb_usb_device *d,
+		u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	int ret;
+	struct dvbsky_state *state = d_to_priv(d);
+
+	mutex_lock(&d->usb_mutex);
+	if (wlen != 0)
+		memcpy(state->obuf, wbuf, wlen);
+
+	ret = dvb_usbv2_generic_rw_locked(d, state->obuf, wlen,
+			state->ibuf, rlen);
+
+	if (!ret && (rlen != 0))
+		memcpy(rbuf, state->ibuf, rlen);
+
+	mutex_unlock(&d->usb_mutex);
+	return ret;
+}
+
+static int dvbsky_stream_ctrl(struct dvb_usb_device *d, u8 onoff)
+{
+	struct dvbsky_state *state = d_to_priv(d);
+	int ret;
+	u8 obuf_pre[3] = { 0x37, 0, 0 };
+	u8 obuf_post[3] = { 0x36, 3, 0 };
+
+	mutex_lock(&state->stream_mutex);
+	ret = dvbsky_usb_generic_rw(d, obuf_pre, 3, NULL, 0);
+	if (!ret && onoff) {
+		msleep(20);
+		ret = dvbsky_usb_generic_rw(d, obuf_post, 3, NULL, 0);
+	}
+	mutex_unlock(&state->stream_mutex);
+	return ret;
+}
+
+static int dvbsky_streaming_ctrl(struct dvb_frontend *fe, int onoff)
+{
+	struct dvb_usb_device *d = fe_to_d(fe);
+
+	return dvbsky_stream_ctrl(d, (onoff == 0) ? 0 : 1);
+}
+
+/* GPIO */
+static int dvbsky_gpio_ctrl(struct dvb_usb_device *d, u8 gport, u8 value)
+{
+	int ret;
+	u8 obuf[3], ibuf[2];
+
+	obuf[0] = 0x0e;
+	obuf[1] = gport;
+	obuf[2] = value;
+	ret = dvbsky_usb_generic_rw(d, obuf, 3, ibuf, 1);
+	if (ret)
+		dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+			KBUILD_MODNAME, __func__, ret);
+	return ret;
+}
+
+/* I2C */
+static int dvbsky_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+	int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	int ret = 0;
+	u8 ibuf[64], obuf[64];
+
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+		return -EAGAIN;
+
+	if (num > 2) {
+		dev_err(&d->udev->dev,
+		"dvbsky_usb: too many i2c messages[%d] than 2.", num);
+		ret = -EOPNOTSUPP;
+		goto i2c_error;
+	}
+
+	if (num == 1) {
+		if (msg[0].len > 60) {
+			dev_err(&d->udev->dev,
+			"dvbsky_usb: too many i2c bytes[%d] than 60.",
+			msg[0].len);
+			ret = -EOPNOTSUPP;
+			goto i2c_error;
+		}
+		if (msg[0].flags & I2C_M_RD) {
+			/* single read */
+			obuf[0] = 0x09;
+			obuf[1] = 0;
+			obuf[2] = msg[0].len;
+			obuf[3] = msg[0].addr;
+			ret = dvbsky_usb_generic_rw(d, obuf, 4,
+					ibuf, msg[0].len + 1);
+			if (ret)
+				dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+					KBUILD_MODNAME, __func__, ret);
+			if (!ret)
+				memcpy(msg[0].buf, &ibuf[1], msg[0].len);
+		} else {
+			/* write */
+			obuf[0] = 0x08;
+			obuf[1] = msg[0].addr;
+			obuf[2] = msg[0].len;
+			memcpy(&obuf[3], msg[0].buf, msg[0].len);
+			ret = dvbsky_usb_generic_rw(d, obuf,
+					msg[0].len + 3, ibuf, 1);
+			if (ret)
+				dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+					KBUILD_MODNAME, __func__, ret);
+		}
+	} else {
+		if ((msg[0].len > 60) || (msg[1].len > 60)) {
+			dev_err(&d->udev->dev,
+			"dvbsky_usb: too many i2c bytes[w-%d][r-%d] than 60.",
+			msg[0].len, msg[1].len);
+			ret = -EOPNOTSUPP;
+			goto i2c_error;
+		}
+		/* write then read */
+		obuf[0] = 0x09;
+		obuf[1] = msg[0].len;
+		obuf[2] = msg[1].len;
+		obuf[3] = msg[0].addr;
+		memcpy(&obuf[4], msg[0].buf, msg[0].len);
+		ret = dvbsky_usb_generic_rw(d, obuf,
+			msg[0].len + 4, ibuf, msg[1].len + 1);
+		if (ret)
+			dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+				KBUILD_MODNAME, __func__, ret);
+
+		if (!ret)
+			memcpy(msg[1].buf, &ibuf[1], msg[1].len);
+	}
+i2c_error:
+	mutex_unlock(&d->i2c_mutex);
+	return (ret) ? ret : num;
+}
+
+static u32 dvbsky_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm dvbsky_i2c_algo = {
+	.master_xfer   = dvbsky_i2c_xfer,
+	.functionality = dvbsky_i2c_func,
+};
+
+#if IS_ENABLED(CONFIG_RC_CORE)
+static int dvbsky_rc_query(struct dvb_usb_device *d)
+{
+	u32 code = 0xffff, scancode;
+	u8 rc5_command, rc5_system;
+	u8 obuf[2], ibuf[2], toggle;
+	int ret;
+
+	obuf[0] = 0x10;
+	ret = dvbsky_usb_generic_rw(d, obuf, 1, ibuf, 2);
+	if (ret)
+		dev_err(&d->udev->dev, "%s: %s() failed=%d\n",
+			KBUILD_MODNAME, __func__, ret);
+	if (ret == 0)
+		code = (ibuf[0] << 8) | ibuf[1];
+	if (code != 0xffff) {
+		dev_dbg(&d->udev->dev, "rc code: %x\n", code);
+		rc5_command = code & 0x3F;
+		rc5_system = (code & 0x7C0) >> 6;
+		toggle = (code & 0x800) ? 1 : 0;
+		scancode = rc5_system << 8 | rc5_command;
+		rc_keydown(d->rc_dev, RC_TYPE_RC5, scancode, toggle);
+	}
+	return 0;
+}
+
+static int dvbsky_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
+{
+	rc->allowed_protos = RC_BIT_RC5;
+	rc->query          = dvbsky_rc_query;
+	rc->interval       = 300;
+	return 0;
+}
+#else
+	#define dvbsky_get_rc_config NULL
+#endif
+
+static int dvbsky_usb_set_voltage(struct dvb_frontend *fe,
+	fe_sec_voltage_t voltage)
+{
+	struct dvb_usb_device *d = fe_to_d(fe);
+	struct dvbsky_state *state = d_to_priv(d);
+	u8 value;
+
+	if (voltage == SEC_VOLTAGE_OFF)
+		value = 0;
+	else
+		value = 1;
+	dvbsky_gpio_ctrl(d, 0x80, value);
+
+	return state->fe_set_voltage(fe, voltage);
+}
+
+static int dvbsky_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6])
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+	u8 obuf[] = { 0x1e, 0x00 };
+	u8 ibuf[6] = { 0 };
+	struct i2c_msg msg[] = {
+		{
+			.addr = 0x51,
+			.flags = 0,
+			.buf = obuf,
+			.len = 2,
+		}, {
+			.addr = 0x51,
+			.flags = I2C_M_RD,
+			.buf = ibuf,
+			.len = 6,
+		}
+	};
+
+	if (i2c_transfer(&d->i2c_adap, msg, 2) == 2)
+		memcpy(mac, ibuf, 6);
+
+	dev_info(&d->udev->dev, "dvbsky_usb MAC address=%pM\n", mac);
+
+	return 0;
+}
+
+static int dvbsky_usb_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+	struct dvb_usb_device *d = fe_to_d(fe);
+	struct dvbsky_state *state = d_to_priv(d);
+	int ret;
+
+	ret = state->fe_read_status(fe, status);
+
+	/* it need resync slave fifo when signal change from unlock to lock.*/
+	if ((*status & FE_HAS_LOCK) && (!state->last_lock))
+		dvbsky_stream_ctrl(d, 1);
+
+	state->last_lock = (*status & FE_HAS_LOCK) ? 1 : 0;
+	return ret;
+}
+
+static const struct m88ds3103_config dvbsky_s960_m88ds3103_config = {
+	.i2c_addr = 0x68,
+	.clock = 27000000,
+	.i2c_wr_max = 33,
+	.clock_out = 0,
+	.ts_mode = M88DS3103_TS_CI,
+	.ts_clk = 16000,
+	.ts_clk_pol = 0,
+	.agc = 0x99,
+	.lnb_hv_pol = 1,
+	.lnb_en_pol = 1,
+};
+
+static int dvbsky_s960_attach(struct dvb_usb_adapter *adap)
+{
+	struct dvbsky_state *state = adap_to_priv(adap);
+	struct dvb_usb_device *d = adap_to_d(adap);
+	int ret = 0;
+	/* demod I2C adapter */
+	struct i2c_adapter *i2c_adapter;
+	struct i2c_client *client;
+	struct i2c_board_info info;
+	struct m88ts2022_config m88ts2022_config = {
+			.clock = 27000000,
+		};
+	memset(&info, 0, sizeof(struct i2c_board_info));
+
+	/* attach demod */
+	adap->fe[0] = dvb_attach(m88ds3103_attach,
+			&dvbsky_s960_m88ds3103_config,
+			&d->i2c_adap,
+			&i2c_adapter);
+	if (!adap->fe[0]) {
+		dev_err(&d->udev->dev, "dvbsky_s960_attach fail.\n");
+		ret = -ENODEV;
+		goto fail_attach;
+	}
+
+	/* attach tuner */
+	m88ts2022_config.fe = adap->fe[0];
+	strlcpy(info.type, "m88ts2022", I2C_NAME_SIZE);
+	info.addr = 0x60;
+	info.platform_data = &m88ts2022_config;
+	request_module("m88ts2022");
+	client = i2c_new_device(i2c_adapter, &info);
+	if (client == NULL || client->dev.driver == NULL) {
+		dvb_frontend_detach(adap->fe[0]);
+		ret = -ENODEV;
+		goto fail_attach;
+	}
+
+	if (!try_module_get(client->dev.driver->owner)) {
+		i2c_unregister_device(client);
+		dvb_frontend_detach(adap->fe[0]);
+		ret = -ENODEV;
+		goto fail_attach;
+	}
+
+	/* delegate signal strength measurement to tuner */
+	adap->fe[0]->ops.read_signal_strength =
+			adap->fe[0]->ops.tuner_ops.get_rf_strength;
+
+	/* hook fe: need to resync the slave fifo when signal locks. */
+	state->fe_read_status = adap->fe[0]->ops.read_status;
+	adap->fe[0]->ops.read_status = dvbsky_usb_read_status;
+
+	/* hook fe: LNB off/on is control by Cypress usb chip. */
+	state->fe_set_voltage = adap->fe[0]->ops.set_voltage;
+	adap->fe[0]->ops.set_voltage = dvbsky_usb_set_voltage;
+
+	state->i2c_client_tuner = client;
+
+fail_attach:
+	return ret;
+}
+
+static int dvbsky_identify_state(struct dvb_usb_device *d, const char **name)
+{
+	dvbsky_gpio_ctrl(d, 0x04, 1);
+	msleep(20);
+	dvbsky_gpio_ctrl(d, 0x83, 0);
+	dvbsky_gpio_ctrl(d, 0xc0, 1);
+	msleep(100);
+	dvbsky_gpio_ctrl(d, 0x83, 1);
+	dvbsky_gpio_ctrl(d, 0xc0, 0);
+	msleep(50);
+
+	return WARM;
+}
+
+static int dvbsky_init(struct dvb_usb_device *d)
+{
+	struct dvbsky_state *state = d_to_priv(d);
+
+	/* use default interface */
+	/*
+	ret = usb_set_interface(d->udev, 0, 0);
+	if (ret)
+		return ret;
+	*/
+	mutex_init(&state->stream_mutex);
+
+	state->last_lock = 0;
+
+	return 0;
+}
+
+static void dvbsky_exit(struct dvb_usb_device *d)
+{
+	struct dvbsky_state *state = d_to_priv(d);
+	struct i2c_client *client;
+
+	client = state->i2c_client_tuner;
+	/* remove I2C tuner */
+	if (client) {
+		module_put(client->dev.driver->owner);
+		i2c_unregister_device(client);
+	}
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties dvbsky_s960_props = {
+	.driver_name = KBUILD_MODNAME,
+	.owner = THIS_MODULE,
+	.adapter_nr = adapter_nr,
+	.size_of_priv = sizeof(struct dvbsky_state),
+
+	.generic_bulk_ctrl_endpoint = 0x01,
+	.generic_bulk_ctrl_endpoint_response = 0x81,
+	.generic_bulk_ctrl_delay = DVBSKY_MSG_DELAY,
+
+	.i2c_algo         = &dvbsky_i2c_algo,
+	.frontend_attach  = dvbsky_s960_attach,
+	.init             = dvbsky_init,
+	.get_rc_config    = dvbsky_get_rc_config,
+	.streaming_ctrl   = dvbsky_streaming_ctrl,
+	.identify_state	  = dvbsky_identify_state,
+	.exit             = dvbsky_exit,
+	.read_mac_address = dvbsky_read_mac_addr,
+
+	.num_adapters = 1,
+	.adapter = {
+		{
+			.stream = DVB_USB_STREAM_BULK(0x82, 8, 4096),
+		}
+	}
+};
+
+static const struct usb_device_id dvbsky_id_table[] = {
+	{ DVB_USB_DEVICE(0x0572, 0x6831,
+		&dvbsky_s960_props, "DVBSky S960/S860", RC_MAP_DVBSKY) },
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, dvbsky_id_table);
+
+static struct usb_driver dvbsky_usb_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = dvbsky_id_table,
+	.probe = dvb_usbv2_probe,
+	.disconnect = dvb_usbv2_disconnect,
+	.suspend = dvb_usbv2_suspend,
+	.resume = dvb_usbv2_resume,
+	.reset_resume = dvb_usbv2_reset_resume,
+	.no_dynamic_id = 1,
+	.soft_unbind = 1,
+};
+
+module_usb_driver(dvbsky_usb_driver);
+
+MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
+MODULE_DESCRIPTION("Driver for DVBSky USB");
+MODULE_LICENSE("GPL");

drivers/media/usb/dvb-usb-v2/ec168.c

@@ -0,0 +1,385 @@
+/*
+ * E3C EC168 DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "ec168.h"
+#include "ec100.h"
+#include "mxl5005s.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static int ec168_ctrl_msg(struct dvb_usb_device *d, struct ec168_req *req)
+{
+	int ret;
+	unsigned int pipe;
+	u8 request, requesttype;
+	u8 *buf;
+
+	switch (req->cmd) {
+	case DOWNLOAD_FIRMWARE:
+	case GPIO:
+	case WRITE_I2C:
+	case STREAMING_CTRL:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+		request = req->cmd;
+		break;
+	case READ_I2C:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+		request = req->cmd;
+		break;
+	case GET_CONFIG:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+		request = CONFIG;
+		break;
+	case SET_CONFIG:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+		request = CONFIG;
+		break;
+	case WRITE_DEMOD:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_OUT);
+		request = DEMOD_RW;
+		break;
+	case READ_DEMOD:
+		requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
+		request = DEMOD_RW;
+		break;
+	default:
+		dev_err(&d->udev->dev, "%s: unknown command=%02x\n",
+				KBUILD_MODNAME, req->cmd);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	buf = kmalloc(req->size, GFP_KERNEL);
+	if (!buf) {
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
+		/* write */
+		memcpy(buf, req->data, req->size);
+		pipe = usb_sndctrlpipe(d->udev, 0);
+	} else {
+		/* read */
+		pipe = usb_rcvctrlpipe(d->udev, 0);
+	}
+
+	msleep(1); /* avoid I2C errors */
+
+	ret = usb_control_msg(d->udev, pipe, request, requesttype, req->value,
+		req->index, buf, req->size, EC168_USB_TIMEOUT);
+
+	dvb_usb_dbg_usb_control_msg(d->udev, request, requesttype, req->value,
+			req->index, buf, req->size);
+
+	if (ret < 0)
+		goto err_dealloc;
+	else
+		ret = 0;
+
+	/* read request, copy returned data to return buf */
+	if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
+		memcpy(req->data, buf, req->size);
+
+	kfree(buf);
+	return ret;
+
+err_dealloc:
+	kfree(buf);
+error:
+	dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+	return ret;
+}
+
+/* I2C */
+static struct ec100_config ec168_ec100_config;
+
+static int ec168_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+	int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	struct ec168_req req;
+	int i = 0;
+	int ret;
+
+	if (num > 2)
+		return -EINVAL;
+
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+		return -EAGAIN;
+
+	while (i < num) {
+		if (num > i + 1 && (msg[i+1].flags & I2C_M_RD)) {
+			if (msg[i].addr == ec168_ec100_config.demod_address) {
+				req.cmd = READ_DEMOD;
+				req.value = 0;
+				req.index = 0xff00 + msg[i].buf[0]; /* reg */
+				req.size = msg[i+1].len; /* bytes to read */
+				req.data = &msg[i+1].buf[0];
+				ret = ec168_ctrl_msg(d, &req);
+				i += 2;
+			} else {
+				dev_err(&d->udev->dev, "%s: I2C read not " \
+						"implemented\n",
+						KBUILD_MODNAME);
+				ret = -EOPNOTSUPP;
+				i += 2;
+			}
+		} else {
+			if (msg[i].addr == ec168_ec100_config.demod_address) {
+				req.cmd = WRITE_DEMOD;
+				req.value = msg[i].buf[1]; /* val */
+				req.index = 0xff00 + msg[i].buf[0]; /* reg */
+				req.size = 0;
+				req.data = NULL;
+				ret = ec168_ctrl_msg(d, &req);
+				i += 1;
+			} else {
+				req.cmd = WRITE_I2C;
+				req.value = msg[i].buf[0]; /* val */
+				req.index = 0x0100 + msg[i].addr; /* I2C addr */
+				req.size = msg[i].len-1;
+				req.data = &msg[i].buf[1];
+				ret = ec168_ctrl_msg(d, &req);
+				i += 1;
+			}
+		}
+		if (ret)
+			goto error;
+
+	}
+	ret = i;
+
+error:
+	mutex_unlock(&d->i2c_mutex);
+	return ret;
+}
+
+static u32 ec168_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm ec168_i2c_algo = {
+	.master_xfer   = ec168_i2c_xfer,
+	.functionality = ec168_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static int ec168_identify_state(struct dvb_usb_device *d, const char **name)
+{
+	int ret;
+	u8 reply;
+	struct ec168_req req = {GET_CONFIG, 0, 1, sizeof(reply), &reply};
+	dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+	ret = ec168_ctrl_msg(d, &req);
+	if (ret)
+		goto error;
+
+	dev_dbg(&d->udev->dev, "%s: reply=%02x\n", __func__, reply);
+
+	if (reply == 0x01)
+		ret = WARM;
+	else
+		ret = COLD;
+
+	return ret;
+error:
+	dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+	return ret;
+}
+
+static int ec168_download_firmware(struct dvb_usb_device *d,
+		const struct firmware *fw)
+{
+	int ret, len, remaining;
+	struct ec168_req req = {DOWNLOAD_FIRMWARE, 0, 0, 0, NULL};
+	dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+	#define LEN_MAX 2048 /* max packet size */
+	for (remaining = fw->size; remaining > 0; remaining -= LEN_MAX) {
+		len = remaining;
+		if (len > LEN_MAX)
+			len = LEN_MAX;
+
+		req.size = len;
+		req.data = (u8 *) &fw->data[fw->size - remaining];
+		req.index = fw->size - remaining;
+
+		ret = ec168_ctrl_msg(d, &req);
+		if (ret) {
+			dev_err(&d->udev->dev,
+					"%s: firmware download failed=%d\n",
+					KBUILD_MODNAME, ret);
+			goto error;
+		}
+	}
+
+	req.size = 0;
+
+	/* set "warm"? */
+	req.cmd = SET_CONFIG;
+	req.value = 0;
+	req.index = 0x0001;
+	ret = ec168_ctrl_msg(d, &req);
+	if (ret)
+		goto error;
+
+	/* really needed - no idea what does */
+	req.cmd = GPIO;
+	req.value = 0;
+	req.index = 0x0206;
+	ret = ec168_ctrl_msg(d, &req);
+	if (ret)
+		goto error;
+
+	/* activate tuner I2C? */
+	req.cmd = WRITE_I2C;
+	req.value = 0;
+	req.index = 0x00c6;
+	ret = ec168_ctrl_msg(d, &req);
+	if (ret)
+		goto error;
+
+	return ret;
+error:
+	dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
+	return ret;
+}
+
+static struct ec100_config ec168_ec100_config = {
+	.demod_address = 0xff, /* not real address, demod is integrated */
+};
+
+static int ec168_ec100_frontend_attach(struct dvb_usb_adapter *adap)
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+	dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+	adap->fe[0] = dvb_attach(ec100_attach, &ec168_ec100_config,
+			&d->i2c_adap);
+	if (adap->fe[0] == NULL)
+		return -ENODEV;
+
+	return 0;
+}
+
+static struct mxl5005s_config ec168_mxl5003s_config = {
+	.i2c_address     = 0xc6,
+	.if_freq         = IF_FREQ_4570000HZ,
+	.xtal_freq       = CRYSTAL_FREQ_16000000HZ,
+	.agc_mode        = MXL_SINGLE_AGC,
+	.tracking_filter = MXL_TF_OFF,
+	.rssi_enable     = MXL_RSSI_ENABLE,
+	.cap_select      = MXL_CAP_SEL_ENABLE,
+	.div_out         = MXL_DIV_OUT_4,
+	.clock_out       = MXL_CLOCK_OUT_DISABLE,
+	.output_load     = MXL5005S_IF_OUTPUT_LOAD_200_OHM,
+	.top		 = MXL5005S_TOP_25P2,
+	.mod_mode        = MXL_DIGITAL_MODE,
+	.if_mode         = MXL_ZERO_IF,
+	.AgcMasterByte   = 0x00,
+};
+
+static int ec168_mxl5003s_tuner_attach(struct dvb_usb_adapter *adap)
+{
+	struct dvb_usb_device *d = adap_to_d(adap);
+	dev_dbg(&d->udev->dev, "%s:\n", __func__);
+
+	return dvb_attach(mxl5005s_attach, adap->fe[0], &d->i2c_adap,
+			&ec168_mxl5003s_config) == NULL ? -ENODEV : 0;
+}
+
+static int ec168_streaming_ctrl(struct dvb_frontend *fe, int onoff)
+{
+	struct dvb_usb_device *d = fe_to_d(fe);
+	struct ec168_req req = {STREAMING_CTRL, 0x7f01, 0x0202, 0, NULL};
+	dev_dbg(&d->udev->dev, "%s: onoff=%d\n", __func__, onoff);
+
+	if (onoff)
+		req.index = 0x0102;
+	return ec168_ctrl_msg(d, &req);
+}
+
+/* DVB USB Driver stuff */
+/* bInterfaceNumber 0 is HID
+ * bInterfaceNumber 1 is DVB-T */
+static struct dvb_usb_device_properties ec168_props = {
+	.driver_name = KBUILD_MODNAME,
+	.owner = THIS_MODULE,
+	.adapter_nr = adapter_nr,
+	.bInterfaceNumber = 1,
+
+	.identify_state = ec168_identify_state,
+	.firmware = EC168_FIRMWARE,
+	.download_firmware = ec168_download_firmware,
+
+	.i2c_algo = &ec168_i2c_algo,
+	.frontend_attach = ec168_ec100_frontend_attach,
+	.tuner_attach = ec168_mxl5003s_tuner_attach,
+	.streaming_ctrl = ec168_streaming_ctrl,
+
+	.num_adapters = 1,
+	.adapter = {
+		{
+			.stream = DVB_USB_STREAM_BULK(0x82, 6, 32 * 512),
+		}
+	},
+};
+
+static const struct dvb_usb_driver_info ec168_driver_info = {
+	.name = "E3C EC168 reference design",
+	.props = &ec168_props,
+};
+
+static const struct usb_device_id ec168_id[] = {
+	{ USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168),
+		.driver_info = (kernel_ulong_t) &ec168_driver_info },
+	{ USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_2),
+		.driver_info = (kernel_ulong_t) &ec168_driver_info },
+	{ USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_3),
+		.driver_info = (kernel_ulong_t) &ec168_driver_info },
+	{ USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_4),
+		.driver_info = (kernel_ulong_t) &ec168_driver_info },
+	{ USB_DEVICE(USB_VID_E3C, USB_PID_E3C_EC168_5),
+		.driver_info = (kernel_ulong_t) &ec168_driver_info },
+	{}
+};
+MODULE_DEVICE_TABLE(usb, ec168_id);
+
+static struct usb_driver ec168_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = ec168_id,
+	.probe = dvb_usbv2_probe,
+	.disconnect = dvb_usbv2_disconnect,
+	.suspend = dvb_usbv2_suspend,
+	.resume = dvb_usbv2_resume,
+	.no_dynamic_id = 1,
+	.soft_unbind = 1,
+};
+
+module_usb_driver(ec168_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("E3C EC168 driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(EC168_FIRMWARE);

drivers/media/usb/dvb-usb-v2/ec168.h

@@ -0,0 +1,53 @@
+/*
+ * E3C EC168 DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef EC168_H
+#define EC168_H
+
+#include "dvb_usb.h"
+
+#define EC168_USB_TIMEOUT 1000
+#define EC168_FIRMWARE "dvb-usb-ec168.fw"
+
+struct ec168_req {
+	u8  cmd;       /* [1] */
+	u16 value;     /* [2|3] */
+	u16 index;     /* [4|5] */
+	u16 size;      /* [6|7] */
+	u8  *data;
+};
+
+enum ec168_cmd {
+	DOWNLOAD_FIRMWARE    = 0x00,
+	CONFIG               = 0x01,
+	DEMOD_RW             = 0x03,
+	GPIO                 = 0x04,
+	STREAMING_CTRL       = 0x10,
+	READ_I2C             = 0x20,
+	WRITE_I2C            = 0x21,
+	HID_DOWNLOAD         = 0x30,
+	GET_CONFIG,
+	SET_CONFIG,
+	READ_DEMOD,
+	WRITE_DEMOD,
+};
+
+#endif

drivers/media/usb/dvb-usb-v2/gl861.c

@@ -0,0 +1,177 @@
+/* DVB USB compliant linux driver for GL861 USB2.0 devices.
+ *
+ *	This program is free software; you can redistribute it and/or modify it
+ *	under the terms of the GNU General Public License as published by the
+ *	Free Software Foundation, version 2.
+ *
+ * see Documentation/dvb/README.dvb-usb for more information
+ */
+#include "gl861.h"
+
+#include "zl10353.h"
+#include "qt1010.h"
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr,
+			 u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
+{
+	u16 index;
+	u16 value = addr << (8 + 1);
+	int wo = (rbuf == NULL || rlen == 0); /* write-only */
+	u8 req, type;
+
+	if (wo) {
+		req = GL861_REQ_I2C_WRITE;
+		type = GL861_WRITE;
+	} else { /* rw */
+		req = GL861_REQ_I2C_READ;
+		type = GL861_READ;
+	}
+
+	switch (wlen) {
+	case 1:
+		index = wbuf[0];
+		break;
+	case 2:
+		index = wbuf[0];
+		value = value + wbuf[1];
+		break;
+	default:
+		dev_err(&d->udev->dev, "%s: wlen=%d, aborting\n",
+				KBUILD_MODNAME, wlen);
+		return -EINVAL;
+	}
+
+	msleep(1); /* avoid I2C errors */
+
+	return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type,
+			       value, index, rbuf, rlen, 2000);
+}
+
+/* I2C */
+static int gl861_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
+			  int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	int i;
+
+	if (num > 2)
+		return -EINVAL;
+
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+		return -EAGAIN;
+
+	for (i = 0; i < num; i++) {
+		/* write/read request */
+		if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
+			if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
+				msg[i].len, msg[i+1].buf, msg[i+1].len) < 0)
+				break;
+			i++;
+		} else
+			if (gl861_i2c_msg(d, msg[i].addr, msg[i].buf,
+					  msg[i].len, NULL, 0) < 0)
+				break;
+	}
+
+	mutex_unlock(&d->i2c_mutex);
+	return i;
+}
+
+static u32 gl861_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C;
+}
+
+static struct i2c_algorithm gl861_i2c_algo = {
+	.master_xfer   = gl861_i2c_xfer,
+	.functionality = gl861_i2c_func,
+};
+
+/* Callbacks for DVB USB */
+static struct zl10353_config gl861_zl10353_config = {
+	.demod_address = 0x0f,
+	.no_tuner = 1,
+	.parallel_ts = 1,
+};
+
+static int gl861_frontend_attach(struct dvb_usb_adapter *adap)
+{
+
+	adap->fe[0] = dvb_attach(zl10353_attach, &gl861_zl10353_config,
+		&adap_to_d(adap)->i2c_adap);
+	if (adap->fe[0] == NULL)
+		return -EIO;
+
+	return 0;
+}
+
+static struct qt1010_config gl861_qt1010_config = {
+	.i2c_address = 0x62
+};
+
+static int gl861_tuner_attach(struct dvb_usb_adapter *adap)
+{
+	return dvb_attach(qt1010_attach,
+			  adap->fe[0], &adap_to_d(adap)->i2c_adap,
+			  &gl861_qt1010_config) == NULL ? -ENODEV : 0;
+}
+
+static int gl861_init(struct dvb_usb_device *d)
+{
+	/*
+	 * There is 2 interfaces. Interface 0 is for TV and interface 1 is
+	 * for HID remote controller. Interface 0 has 2 alternate settings.
+	 * For some reason we need to set interface explicitly, defaulted
+	 * as alternate setting 1?
+	 */
+	return usb_set_interface(d->udev, 0, 0);
+}
+
+/* DVB USB Driver stuff */
+static struct dvb_usb_device_properties gl861_props = {
+	.driver_name = KBUILD_MODNAME,
+	.owner = THIS_MODULE,
+	.adapter_nr = adapter_nr,
+
+	.i2c_algo = &gl861_i2c_algo,
+	.frontend_attach = gl861_frontend_attach,
+	.tuner_attach = gl861_tuner_attach,
+	.init = gl861_init,
+
+	.num_adapters = 1,
+	.adapter = {
+		{
+			.stream = DVB_USB_STREAM_BULK(0x81, 7, 512),
+		}
+	}
+};
+
+static const struct usb_device_id gl861_id_table[] = {
+	{ DVB_USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580_55801,
+		&gl861_props, "MSI Mega Sky 55801 DVB-T USB2.0", NULL) },
+	{ DVB_USB_DEVICE(USB_VID_ALINK, USB_VID_ALINK_DTU,
+		&gl861_props, "A-LINK DTU DVB-T USB2.0", NULL) },
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, gl861_id_table);
+
+static struct usb_driver gl861_usb_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = gl861_id_table,
+	.probe = dvb_usbv2_probe,
+	.disconnect = dvb_usbv2_disconnect,
+	.suspend = dvb_usbv2_suspend,
+	.resume = dvb_usbv2_resume,
+	.reset_resume = dvb_usbv2_reset_resume,
+	.no_dynamic_id = 1,
+	.soft_unbind = 1,
+};
+
+module_usb_driver(gl861_usb_driver);
+
+MODULE_AUTHOR("Carl Lundqvist <comabug@gmail.com>");
+MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / GL861");
+MODULE_VERSION("0.1");
+MODULE_LICENSE("GPL");

drivers/media/usb/dvb-usb-v2/gl861.h

@@ -0,0 +1,12 @@
+#ifndef _DVB_USB_GL861_H_
+#define _DVB_USB_GL861_H_
+
+#include "dvb_usb.h"
+
+#define GL861_WRITE		0x40
+#define GL861_READ		0xc0
+
+#define GL861_REQ_I2C_WRITE	0x01
+#define GL861_REQ_I2C_READ	0x02
+
+#endif

drivers/media/usb/dvb-usb-v2/lmedm04.h

@@ -0,0 +1,175 @@
+/* DVB USB compliant linux driver for
+ *
+ * DM04/QQBOX DVB-S USB BOX	LME2510C + SHARP:BS2F7HZ7395
+ *				LME2510C + LG TDQY-P001F
+ *				LME2510 + LG TDQY-P001F
+ *
+ * MVB7395 (LME2510C+SHARP:BS2F7HZ7395)
+ * SHARP:BS2F7HZ7395 = (STV0288+Sharp IX2505V)
+ *
+ * MVB001F (LME2510+LGTDQT-P001F)
+ * LG TDQY - P001F =(TDA8263 + TDA10086H)
+ *
+ * MVB0001F (LME2510C+LGTDQT-P001F)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation,  version 2.
+ * *
+ * see Documentation/dvb/README.dvb-usb for more information
+ */
+#ifndef _DVB_USB_LME2510_H_
+#define _DVB_USB_LME2510_H_
+
+/* Streamer &  PID
+ *
+ * Note:	These commands do not actually stop the streaming
+ *		but form some kind of packet filtering/stream count
+ *		or tuning related functions.
+ *  06 XX
+ *  offset 1 = 00 Enable Streaming
+ *
+ *
+ *  PID
+ *  03 XX XX  ----> reg number ---> setting....20 XX
+ *  offset 1 = length
+ *  offset 2 = start of data
+ *  end byte -1 = 20
+ *  end byte = clear pid always a0, other wise 9c, 9a ??
+ *
+*/
+#define LME_ST_ON_W	{0x06, 0x00}
+#define LME_CLEAR_PID   {0x03, 0x02, 0x20, 0xa0}
+#define LME_ZERO_PID	{0x03, 0x06, 0x00, 0x00, 0x01, 0x00, 0x20, 0x9c}
+#define LME_ALL_PIDS	{0x03, 0x06, 0x00, 0xff, 0x01, 0x1f, 0x20, 0x81}
+
+/*  LNB Voltage
+ *  07 XX XX
+ *  offset 1 = 01
+ *  offset 2 = 00=Voltage low 01=Voltage high
+ *
+ *  LNB Power
+ *  03 01 XX
+ *  offset 2 = 00=ON 01=OFF
+ */
+
+#define LME_VOLTAGE_L	{0x07, 0x01, 0x00}
+#define LME_VOLTAGE_H	{0x07, 0x01, 0x01}
+#define LNB_ON		{0x3a, 0x01, 0x00}
+#define LNB_OFF		{0x3a, 0x01, 0x01}
+
+/* Initial stv0288 settings for 7395 Frontend */
+static u8 s7395_inittab[] = {
+	0x01, 0x15,
+	0x02, 0x20,
+	0x03, 0xa0,
+	0x04, 0xa0,
+	0x05, 0x12,
+	0x06, 0x00,
+	0x09, 0x00,
+	0x0a, 0x04,
+	0x0b, 0x00,
+	0x0c, 0x00,
+	0x0d, 0x00,
+	0x0e, 0xc1,
+	0x0f, 0x54,
+	0x11, 0x7a,
+	0x12, 0x03,
+	0x13, 0x48,
+	0x14, 0x84,
+	0x15, 0xc5,
+	0x16, 0xb8,
+	0x17, 0x9c,
+	0x18, 0x00,
+	0x19, 0xa6,
+	0x1a, 0x88,
+	0x1b, 0x8f,
+	0x1c, 0xf0,
+	0x20, 0x0b,
+	0x21, 0x54,
+	0x22, 0xff,
+	0x23, 0x01,
+	0x28, 0x46,
+	0x29, 0x66,
+	0x2a, 0x90,
+	0x2b, 0xfa,
+	0x2c, 0xd9,
+	0x30, 0x0,
+	0x31, 0x1e,
+	0x32, 0x14,
+	0x33, 0x0f,
+	0x34, 0x09,
+	0x35, 0x0c,
+	0x36, 0x05,
+	0x37, 0x2f,
+	0x38, 0x16,
+	0x39, 0xbd,
+	0x3a, 0x0,
+	0x3b, 0x13,
+	0x3c, 0x11,
+	0x3d, 0x30,
+	0x40, 0x63,
+	0x41, 0x04,
+	0x42, 0x20,
+	0x43, 0x00,
+	0x44, 0x00,
+	0x45, 0x00,
+	0x46, 0x00,
+	0x47, 0x00,
+	0x4a, 0x00,
+	0x50, 0x10,
+	0x51, 0x36,
+	0x52, 0x21,
+	0x53, 0x94,
+	0x54, 0xb2,
+	0x55, 0x29,
+	0x56, 0x64,
+	0x57, 0x2b,
+	0x58, 0x54,
+	0x59, 0x86,
+	0x5a, 0x00,
+	0x5b, 0x9b,
+	0x5c, 0x08,
+	0x5d, 0x7f,
+	0x5e, 0xff,
+	0x5f, 0x8d,
+	0x70, 0x0,
+	0x71, 0x0,
+	0x72, 0x0,
+	0x74, 0x0,
+	0x75, 0x0,
+	0x76, 0x0,
+	0x81, 0x0,
+	0x82, 0x3f,
+	0x83, 0x3f,
+	0x84, 0x0,
+	0x85, 0x0,
+	0x88, 0x0,
+	0x89, 0x0,
+	0x8a, 0x0,
+	0x8b, 0x0,
+	0x8c, 0x0,
+	0x90, 0x0,
+	0x91, 0x0,
+	0x92, 0x0,
+	0x93, 0x0,
+	0x94, 0x1c,
+	0x97, 0x0,
+	0xa0, 0x48,
+	0xa1, 0x0,
+	0xb0, 0xb8,
+	0xb1, 0x3a,
+	0xb2, 0x10,
+	0xb3, 0x82,
+	0xb4, 0x80,
+	0xb5, 0x82,
+	0xb6, 0x82,
+	0xb7, 0x82,
+	0xb8, 0x20,
+	0xb9, 0x0,
+	0xf0, 0x0,
+	0xf1, 0x0,
+	0xf2, 0xc0,
+	0xff, 0xff,
+};
+#endif

drivers/media/usb/dvb-usb-v2/mxl111sf-demod.c

@@ -0,0 +1,612 @@
+/*
+ *  mxl111sf-demod.c - driver for the MaxLinear MXL111SF DVB-T demodulator
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "mxl111sf-demod.h"
+#include "mxl111sf-reg.h"
+
+/* debug */
+static int mxl111sf_demod_debug;
+module_param_named(debug, mxl111sf_demod_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able)).");
+
+#define mxl_dbg(fmt, arg...) \
+	if (mxl111sf_demod_debug) \
+		mxl_printk(KERN_DEBUG, fmt, ##arg)
+
+/* ------------------------------------------------------------------------ */
+
+struct mxl111sf_demod_state {
+	struct mxl111sf_state *mxl_state;
+
+	struct mxl111sf_demod_config *cfg;
+
+	struct dvb_frontend fe;
+};
+
+/* ------------------------------------------------------------------------ */
+
+static int mxl111sf_demod_read_reg(struct mxl111sf_demod_state *state,
+				   u8 addr, u8 *data)
+{
+	return (state->cfg->read_reg) ?
+		state->cfg->read_reg(state->mxl_state, addr, data) :
+		-EINVAL;
+}
+
+static int mxl111sf_demod_write_reg(struct mxl111sf_demod_state *state,
+				    u8 addr, u8 data)
+{
+	return (state->cfg->write_reg) ?
+		state->cfg->write_reg(state->mxl_state, addr, data) :
+		-EINVAL;
+}
+
+static
+int mxl111sf_demod_program_regs(struct mxl111sf_demod_state *state,
+				struct mxl111sf_reg_ctrl_info *ctrl_reg_info)
+{
+	return (state->cfg->program_regs) ?
+		state->cfg->program_regs(state->mxl_state, ctrl_reg_info) :
+		-EINVAL;
+}
+
+/* ------------------------------------------------------------------------ */
+/* TPS */
+
+static
+int mxl1x1sf_demod_get_tps_code_rate(struct mxl111sf_demod_state *state,
+				     fe_code_rate_t *code_rate)
+{
+	u8 val;
+	int ret = mxl111sf_demod_read_reg(state, V6_CODE_RATE_TPS_REG, &val);
+	/* bit<2:0> - 000:1/2, 001:2/3, 010:3/4, 011:5/6, 100:7/8 */
+	if (mxl_fail(ret))
+		goto fail;
+
+	switch (val & V6_CODE_RATE_TPS_MASK) {
+	case 0:
+		*code_rate = FEC_1_2;
+		break;
+	case 1:
+		*code_rate = FEC_2_3;
+		break;
+	case 2:
+		*code_rate = FEC_3_4;
+		break;
+	case 3:
+		*code_rate = FEC_5_6;
+		break;
+	case 4:
+		*code_rate = FEC_7_8;
+		break;
+	}
+fail:
+	return ret;
+}
+
+static
+int mxl1x1sf_demod_get_tps_modulation(struct mxl111sf_demod_state *state,
+					 fe_modulation_t *modulation)
+{
+	u8 val;
+	int ret = mxl111sf_demod_read_reg(state, V6_MODORDER_TPS_REG, &val);
+	/* Constellation, 00 : QPSK, 01 : 16QAM, 10:64QAM */
+	if (mxl_fail(ret))
+		goto fail;
+
+	switch ((val & V6_PARAM_CONSTELLATION_MASK) >> 4) {
+	case 0:
+		*modulation = QPSK;
+		break;
+	case 1:
+		*modulation = QAM_16;
+		break;
+	case 2:
+		*modulation = QAM_64;
+		break;
+	}
+fail:
+	return ret;
+}
+
+static
+int mxl1x1sf_demod_get_tps_guard_fft_mode(struct mxl111sf_demod_state *state,
+					  fe_transmit_mode_t *fft_mode)
+{
+	u8 val;
+	int ret = mxl111sf_demod_read_reg(state, V6_MODE_TPS_REG, &val);
+	/* FFT Mode, 00:2K, 01:8K, 10:4K */
+	if (mxl_fail(ret))
+		goto fail;
+
+	switch ((val & V6_PARAM_FFT_MODE_MASK) >> 2) {
+	case 0:
+		*fft_mode = TRANSMISSION_MODE_2K;
+		break;
+	case 1:
+		*fft_mode = TRANSMISSION_MODE_8K;
+		break;
+	case 2:
+		*fft_mode = TRANSMISSION_MODE_4K;
+		break;
+	}
+fail:
+	return ret;
+}
+
+static
+int mxl1x1sf_demod_get_tps_guard_interval(struct mxl111sf_demod_state *state,
+					  fe_guard_interval_t *guard)
+{
+	u8 val;
+	int ret = mxl111sf_demod_read_reg(state, V6_CP_TPS_REG, &val);
+	/* 00:1/32, 01:1/16, 10:1/8, 11:1/4 */
+	if (mxl_fail(ret))
+		goto fail;
+
+	switch ((val & V6_PARAM_GI_MASK) >> 4) {
+	case 0:
+		*guard = GUARD_INTERVAL_1_32;
+		break;
+	case 1:
+		*guard = GUARD_INTERVAL_1_16;
+		break;
+	case 2:
+		*guard = GUARD_INTERVAL_1_8;
+		break;
+	case 3:
+		*guard = GUARD_INTERVAL_1_4;
+		break;
+	}
+fail:
+	return ret;
+}
+
+static
+int mxl1x1sf_demod_get_tps_hierarchy(struct mxl111sf_demod_state *state,
+				     fe_hierarchy_t *hierarchy)
+{
+	u8 val;
+	int ret = mxl111sf_demod_read_reg(state, V6_TPS_HIERACHY_REG, &val);
+	/* bit<6:4> - 000:Non hierarchy, 001:1, 010:2, 011:4 */
+	if (mxl_fail(ret))
+		goto fail;
+
+	switch ((val & V6_TPS_HIERARCHY_INFO_MASK) >> 6) {
+	case 0:
+		*hierarchy = HIERARCHY_NONE;
+		break;
+	case 1:
+		*hierarchy = HIERARCHY_1;
+		break;
+	case 2:
+		*hierarchy = HIERARCHY_2;
+		break;
+	case 3:
+		*hierarchy = HIERARCHY_4;
+		break;
+	}
+fail:
+	return ret;
+}
+
+/* ------------------------------------------------------------------------ */
+/* LOCKS */
+
+static
+int mxl1x1sf_demod_get_sync_lock_status(struct mxl111sf_demod_state *state,
+					int *sync_lock)
+{
+	u8 val = 0;
+	int ret = mxl111sf_demod_read_reg(state, V6_SYNC_LOCK_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+	*sync_lock = (val & SYNC_LOCK_MASK) >> 4;
+fail:
+	return ret;
+}
+
+static
+int mxl1x1sf_demod_get_rs_lock_status(struct mxl111sf_demod_state *state,
+				      int *rs_lock)
+{
+	u8 val = 0;
+	int ret = mxl111sf_demod_read_reg(state, V6_RS_LOCK_DET_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+	*rs_lock = (val & RS_LOCK_DET_MASK) >> 3;
+fail:
+	return ret;
+}
+
+static
+int mxl1x1sf_demod_get_tps_lock_status(struct mxl111sf_demod_state *state,
+				       int *tps_lock)
+{
+	u8 val = 0;
+	int ret = mxl111sf_demod_read_reg(state, V6_TPS_LOCK_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+	*tps_lock = (val & V6_PARAM_TPS_LOCK_MASK) >> 6;
+fail:
+	return ret;
+}
+
+static
+int mxl1x1sf_demod_get_fec_lock_status(struct mxl111sf_demod_state *state,
+				       int *fec_lock)
+{
+	u8 val = 0;
+	int ret = mxl111sf_demod_read_reg(state, V6_IRQ_STATUS_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+	*fec_lock = (val & IRQ_MASK_FEC_LOCK) >> 4;
+fail:
+	return ret;
+}
+
+#if 0
+static
+int mxl1x1sf_demod_get_cp_lock_status(struct mxl111sf_demod_state *state,
+				      int *cp_lock)
+{
+	u8 val = 0;
+	int ret = mxl111sf_demod_read_reg(state, V6_CP_LOCK_DET_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+	*cp_lock = (val & V6_CP_LOCK_DET_MASK) >> 2;
+fail:
+	return ret;
+}
+#endif
+
+static int mxl1x1sf_demod_reset_irq_status(struct mxl111sf_demod_state *state)
+{
+	return mxl111sf_demod_write_reg(state, 0x0e, 0xff);
+}
+
+/* ------------------------------------------------------------------------ */
+
+static int mxl111sf_demod_set_frontend(struct dvb_frontend *fe)
+{
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+	int ret = 0;
+
+	struct mxl111sf_reg_ctrl_info phy_pll_patch[] = {
+		{0x00, 0xff, 0x01}, /* change page to 1 */
+		{0x40, 0xff, 0x05},
+		{0x40, 0xff, 0x01},
+		{0x41, 0xff, 0xca},
+		{0x41, 0xff, 0xc0},
+		{0x00, 0xff, 0x00}, /* change page to 0 */
+		{0,    0,    0}
+	};
+
+	mxl_dbg("()");
+
+	if (fe->ops.tuner_ops.set_params) {
+		ret = fe->ops.tuner_ops.set_params(fe);
+		if (mxl_fail(ret))
+			goto fail;
+		msleep(50);
+	}
+	ret = mxl111sf_demod_program_regs(state, phy_pll_patch);
+	mxl_fail(ret);
+	msleep(50);
+	ret = mxl1x1sf_demod_reset_irq_status(state);
+	mxl_fail(ret);
+	msleep(100);
+fail:
+	return ret;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#if 0
+/* resets TS Packet error count */
+/* After setting 7th bit of V5_PER_COUNT_RESET_REG, it should be reset to 0. */
+static
+int mxl1x1sf_demod_reset_packet_error_count(struct mxl111sf_demod_state *state)
+{
+	struct mxl111sf_reg_ctrl_info reset_per_count[] = {
+		{0x20, 0x01, 0x01},
+		{0x20, 0x01, 0x00},
+		{0,    0,    0}
+	};
+	return mxl111sf_demod_program_regs(state, reset_per_count);
+}
+#endif
+
+/* returns TS Packet error count */
+/* PER Count = FEC_PER_COUNT * (2 ** (FEC_PER_SCALE * 4)) */
+static int mxl111sf_demod_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+	u32 fec_per_count, fec_per_scale;
+	u8 val;
+	int ret;
+
+	*ucblocks = 0;
+
+	/* FEC_PER_COUNT Register */
+	ret = mxl111sf_demod_read_reg(state, V6_FEC_PER_COUNT_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+
+	fec_per_count = val;
+
+	/* FEC_PER_SCALE Register */
+	ret = mxl111sf_demod_read_reg(state, V6_FEC_PER_SCALE_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+
+	val &= V6_FEC_PER_SCALE_MASK;
+	val *= 4;
+
+	fec_per_scale = 1 << val;
+
+	fec_per_count *= fec_per_scale;
+
+	*ucblocks = fec_per_count;
+fail:
+	return ret;
+}
+
+#ifdef MXL111SF_DEMOD_ENABLE_CALCULATIONS
+/* FIXME: leaving this enabled breaks the build on some architectures,
+ * and we shouldn't have any floating point math in the kernel, anyway.
+ *
+ * These macros need to be re-written, but it's harmless to simply
+ * return zero for now. */
+#define CALCULATE_BER(avg_errors, count) \
+	((u32)(avg_errors * 4)/(count*64*188*8))
+#define CALCULATE_SNR(data) \
+	((u32)((10 * (u32)data / 64) - 2.5))
+#else
+#define CALCULATE_BER(avg_errors, count) 0
+#define CALCULATE_SNR(data) 0
+#endif
+
+static int mxl111sf_demod_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+	u8 val1, val2, val3;
+	int ret;
+
+	*ber = 0;
+
+	ret = mxl111sf_demod_read_reg(state, V6_RS_AVG_ERRORS_LSB_REG, &val1);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_demod_read_reg(state, V6_RS_AVG_ERRORS_MSB_REG, &val2);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_demod_read_reg(state, V6_N_ACCUMULATE_REG, &val3);
+	if (mxl_fail(ret))
+		goto fail;
+
+	*ber = CALCULATE_BER((val1 | (val2 << 8)), val3);
+fail:
+	return ret;
+}
+
+static int mxl111sf_demod_calc_snr(struct mxl111sf_demod_state *state,
+				   u16 *snr)
+{
+	u8 val1, val2;
+	int ret;
+
+	*snr = 0;
+
+	ret = mxl111sf_demod_read_reg(state, V6_SNR_RB_LSB_REG, &val1);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_demod_read_reg(state, V6_SNR_RB_MSB_REG, &val2);
+	if (mxl_fail(ret))
+		goto fail;
+
+	*snr = CALCULATE_SNR(val1 | ((val2 & 0x03) << 8));
+fail:
+	return ret;
+}
+
+static int mxl111sf_demod_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+
+	int ret = mxl111sf_demod_calc_snr(state, snr);
+	if (mxl_fail(ret))
+		goto fail;
+
+	*snr /= 10; /* 0.1 dB */
+fail:
+	return ret;
+}
+
+static int mxl111sf_demod_read_status(struct dvb_frontend *fe,
+				      fe_status_t *status)
+{
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+	int ret, locked, cr_lock, sync_lock, fec_lock;
+
+	*status = 0;
+
+	ret = mxl1x1sf_demod_get_rs_lock_status(state, &locked);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl1x1sf_demod_get_tps_lock_status(state, &cr_lock);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl1x1sf_demod_get_sync_lock_status(state, &sync_lock);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl1x1sf_demod_get_fec_lock_status(state, &fec_lock);
+	if (mxl_fail(ret))
+		goto fail;
+
+	if (locked)
+		*status |= FE_HAS_SIGNAL;
+	if (cr_lock)
+		*status |= FE_HAS_CARRIER;
+	if (sync_lock)
+		*status |= FE_HAS_SYNC;
+	if (fec_lock) /* false positives? */
+		*status |= FE_HAS_VITERBI;
+
+	if ((locked) && (cr_lock) && (sync_lock))
+		*status |= FE_HAS_LOCK;
+fail:
+	return ret;
+}
+
+static int mxl111sf_demod_read_signal_strength(struct dvb_frontend *fe,
+					       u16 *signal_strength)
+{
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+	fe_modulation_t modulation;
+	u16 snr;
+
+	mxl111sf_demod_calc_snr(state, &snr);
+	mxl1x1sf_demod_get_tps_modulation(state, &modulation);
+
+	switch (modulation) {
+	case QPSK:
+		*signal_strength = (snr >= 1300) ?
+			min(65535, snr * 44) : snr * 38;
+		break;
+	case QAM_16:
+		*signal_strength = (snr >= 1500) ?
+			min(65535, snr * 38) : snr * 33;
+		break;
+	case QAM_64:
+		*signal_strength = (snr >= 2000) ?
+			min(65535, snr * 29) : snr * 25;
+		break;
+	default:
+		*signal_strength = 0;
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int mxl111sf_demod_get_frontend(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+
+	mxl_dbg("()");
+#if 0
+	p->inversion = /* FIXME */ ? INVERSION_ON : INVERSION_OFF;
+#endif
+	if (fe->ops.tuner_ops.get_bandwidth)
+		fe->ops.tuner_ops.get_bandwidth(fe, &p->bandwidth_hz);
+	if (fe->ops.tuner_ops.get_frequency)
+		fe->ops.tuner_ops.get_frequency(fe, &p->frequency);
+	mxl1x1sf_demod_get_tps_code_rate(state, &p->code_rate_HP);
+	mxl1x1sf_demod_get_tps_code_rate(state, &p->code_rate_LP);
+	mxl1x1sf_demod_get_tps_modulation(state, &p->modulation);
+	mxl1x1sf_demod_get_tps_guard_fft_mode(state,
+					      &p->transmission_mode);
+	mxl1x1sf_demod_get_tps_guard_interval(state,
+					      &p->guard_interval);
+	mxl1x1sf_demod_get_tps_hierarchy(state,
+					 &p->hierarchy);
+
+	return 0;
+}
+
+static
+int mxl111sf_demod_get_tune_settings(struct dvb_frontend *fe,
+				     struct dvb_frontend_tune_settings *tune)
+{
+	tune->min_delay_ms = 1000;
+	return 0;
+}
+
+static void mxl111sf_demod_release(struct dvb_frontend *fe)
+{
+	struct mxl111sf_demod_state *state = fe->demodulator_priv;
+	mxl_dbg("()");
+	kfree(state);
+	fe->demodulator_priv = NULL;
+}
+
+static struct dvb_frontend_ops mxl111sf_demod_ops = {
+	.delsys = { SYS_DVBT },
+	.info = {
+		.name               = "MaxLinear MxL111SF DVB-T demodulator",
+		.frequency_min      = 177000000,
+		.frequency_max      = 858000000,
+		.frequency_stepsize = 166666,
+		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+			FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
+			FE_CAN_QAM_AUTO |
+			FE_CAN_HIERARCHY_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
+			FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER
+	},
+	.release              = mxl111sf_demod_release,
+#if 0
+	.init                 = mxl111sf_init,
+	.i2c_gate_ctrl        = mxl111sf_i2c_gate_ctrl,
+#endif
+	.set_frontend         = mxl111sf_demod_set_frontend,
+	.get_frontend         = mxl111sf_demod_get_frontend,
+	.get_tune_settings    = mxl111sf_demod_get_tune_settings,
+	.read_status          = mxl111sf_demod_read_status,
+	.read_signal_strength = mxl111sf_demod_read_signal_strength,
+	.read_ber             = mxl111sf_demod_read_ber,
+	.read_snr             = mxl111sf_demod_read_snr,
+	.read_ucblocks        = mxl111sf_demod_read_ucblocks,
+};
+
+struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
+					   struct mxl111sf_demod_config *cfg)
+{
+	struct mxl111sf_demod_state *state = NULL;
+
+	mxl_dbg("()");
+
+	state = kzalloc(sizeof(struct mxl111sf_demod_state), GFP_KERNEL);
+	if (state == NULL)
+		return NULL;
+
+	state->mxl_state = mxl_state;
+	state->cfg = cfg;
+
+	memcpy(&state->fe.ops, &mxl111sf_demod_ops,
+	       sizeof(struct dvb_frontend_ops));
+
+	state->fe.demodulator_priv = state;
+	return &state->fe;
+}
+EXPORT_SYMBOL_GPL(mxl111sf_demod_attach);
+
+MODULE_DESCRIPTION("MaxLinear MxL111SF DVB-T demodulator driver");
+MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.1");
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-demod.h

@@ -0,0 +1,55 @@
+/*
+ *  mxl111sf-demod.h - driver for the MaxLinear MXL111SF DVB-T demodulator
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __MXL111SF_DEMOD_H__
+#define __MXL111SF_DEMOD_H__
+
+#include <linux/kconfig.h>
+#include "dvb_frontend.h"
+#include "mxl111sf.h"
+
+struct mxl111sf_demod_config {
+	int (*read_reg)(struct mxl111sf_state *state, u8 addr, u8 *data);
+	int (*write_reg)(struct mxl111sf_state *state, u8 addr, u8 data);
+	int (*program_regs)(struct mxl111sf_state *state,
+			    struct mxl111sf_reg_ctrl_info *ctrl_reg_info);
+};
+
+#if IS_ENABLED(CONFIG_DVB_USB_MXL111SF)
+extern
+struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
+					   struct mxl111sf_demod_config *cfg);
+#else
+static inline
+struct dvb_frontend *mxl111sf_demod_attach(struct mxl111sf_state *mxl_state,
+					   struct mxl111sf_demod_config *cfg)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif /* CONFIG_DVB_USB_MXL111SF */
+
+#endif /* __MXL111SF_DEMOD_H__ */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-gpio.c

@@ -0,0 +1,763 @@
+/*
+ *  mxl111sf-gpio.c - driver for the MaxLinear MXL111SF
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "mxl111sf-gpio.h"
+#include "mxl111sf-i2c.h"
+#include "mxl111sf.h"
+
+/* ------------------------------------------------------------------------- */
+
+#define MXL_GPIO_MUX_REG_0 0x84
+#define MXL_GPIO_MUX_REG_1 0x89
+#define MXL_GPIO_MUX_REG_2 0x82
+
+#define MXL_GPIO_DIR_INPUT  0
+#define MXL_GPIO_DIR_OUTPUT 1
+
+
+static int mxl111sf_set_gpo_state(struct mxl111sf_state *state, u8 pin, u8 val)
+{
+	int ret;
+	u8 tmp;
+
+	mxl_debug_adv("(%d, %d)", pin, val);
+
+	if ((pin > 0) && (pin < 8)) {
+		ret = mxl111sf_read_reg(state, 0x19, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		tmp &= ~(1 << (pin - 1));
+		tmp |= (val << (pin - 1));
+		ret = mxl111sf_write_reg(state, 0x19, tmp);
+		if (mxl_fail(ret))
+			goto fail;
+	} else if (pin <= 10) {
+		if (pin == 0)
+			pin += 7;
+		ret = mxl111sf_read_reg(state, 0x30, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		tmp &= ~(1 << (pin - 3));
+		tmp |= (val << (pin - 3));
+		ret = mxl111sf_write_reg(state, 0x30, tmp);
+		if (mxl_fail(ret))
+			goto fail;
+	} else
+		ret = -EINVAL;
+fail:
+	return ret;
+}
+
+static int mxl111sf_get_gpi_state(struct mxl111sf_state *state, u8 pin, u8 *val)
+{
+	int ret;
+	u8 tmp;
+
+	mxl_debug("(0x%02x)", pin);
+
+	*val = 0;
+
+	switch (pin) {
+	case 0:
+	case 1:
+	case 2:
+	case 3:
+		ret = mxl111sf_read_reg(state, 0x23, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		*val = (tmp >> (pin + 4)) & 0x01;
+		break;
+	case 4:
+	case 5:
+	case 6:
+	case 7:
+		ret = mxl111sf_read_reg(state, 0x2f, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		*val = (tmp >> pin) & 0x01;
+		break;
+	case 8:
+	case 9:
+	case 10:
+		ret = mxl111sf_read_reg(state, 0x22, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		*val = (tmp >> (pin - 3)) & 0x01;
+		break;
+	default:
+		return -EINVAL; /* invalid pin */
+	}
+fail:
+	return ret;
+}
+
+struct mxl_gpio_cfg {
+	u8 pin;
+	u8 dir;
+	u8 val;
+};
+
+static int mxl111sf_config_gpio_pins(struct mxl111sf_state *state,
+				     struct mxl_gpio_cfg *gpio_cfg)
+{
+	int ret;
+	u8 tmp;
+
+	mxl_debug_adv("(%d, %d)", gpio_cfg->pin, gpio_cfg->dir);
+
+	switch (gpio_cfg->pin) {
+	case 0:
+	case 1:
+	case 2:
+	case 3:
+		ret = mxl111sf_read_reg(state, MXL_GPIO_MUX_REG_0, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		tmp &= ~(1 << (gpio_cfg->pin + 4));
+		tmp |= (gpio_cfg->dir << (gpio_cfg->pin + 4));
+		ret = mxl111sf_write_reg(state, MXL_GPIO_MUX_REG_0, tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		break;
+	case 4:
+	case 5:
+	case 6:
+	case 7:
+		ret = mxl111sf_read_reg(state, MXL_GPIO_MUX_REG_1, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		tmp &= ~(1 << gpio_cfg->pin);
+		tmp |= (gpio_cfg->dir << gpio_cfg->pin);
+		ret = mxl111sf_write_reg(state, MXL_GPIO_MUX_REG_1, tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		break;
+	case 8:
+	case 9:
+	case 10:
+		ret = mxl111sf_read_reg(state, MXL_GPIO_MUX_REG_2, &tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		tmp &= ~(1 << (gpio_cfg->pin - 3));
+		tmp |= (gpio_cfg->dir << (gpio_cfg->pin - 3));
+		ret = mxl111sf_write_reg(state, MXL_GPIO_MUX_REG_2, tmp);
+		if (mxl_fail(ret))
+			goto fail;
+		break;
+	default:
+		return -EINVAL; /* invalid pin */
+	}
+
+	ret = (MXL_GPIO_DIR_OUTPUT == gpio_cfg->dir) ?
+		mxl111sf_set_gpo_state(state,
+				       gpio_cfg->pin, gpio_cfg->val) :
+		mxl111sf_get_gpi_state(state,
+				       gpio_cfg->pin, &gpio_cfg->val);
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+static int mxl111sf_hw_do_set_gpio(struct mxl111sf_state *state,
+				   int gpio, int direction, int val)
+{
+	struct mxl_gpio_cfg gpio_config = {
+		.pin = gpio,
+		.dir = direction,
+		.val = val,
+	};
+
+	mxl_debug("(%d, %d, %d)", gpio, direction, val);
+
+	return mxl111sf_config_gpio_pins(state, &gpio_config);
+}
+
+/* ------------------------------------------------------------------------- */
+
+#define PIN_MUX_MPEG_MODE_MASK          0x40   /* 0x17 <6> */
+#define PIN_MUX_MPEG_PAR_EN_MASK        0x01   /* 0x18 <0> */
+#define PIN_MUX_MPEG_SER_EN_MASK        0x02   /* 0x18 <1> */
+#define PIN_MUX_MPG_IN_MUX_MASK         0x80   /* 0x3D <7> */
+#define PIN_MUX_BT656_ENABLE_MASK       0x04   /* 0x12 <2> */
+#define PIN_MUX_I2S_ENABLE_MASK         0x40   /* 0x15 <6> */
+#define PIN_MUX_SPI_MODE_MASK           0x10   /* 0x3D <4> */
+#define PIN_MUX_MCLK_EN_CTRL_MASK       0x10   /* 0x82 <4> */
+#define PIN_MUX_MPSYN_EN_CTRL_MASK      0x20   /* 0x82 <5> */
+#define PIN_MUX_MDVAL_EN_CTRL_MASK      0x40   /* 0x82 <6> */
+#define PIN_MUX_MPERR_EN_CTRL_MASK      0x80   /* 0x82 <7> */
+#define PIN_MUX_MDAT_EN_0_MASK          0x10   /* 0x84 <4> */
+#define PIN_MUX_MDAT_EN_1_MASK          0x20   /* 0x84 <5> */
+#define PIN_MUX_MDAT_EN_2_MASK          0x40   /* 0x84 <6> */
+#define PIN_MUX_MDAT_EN_3_MASK          0x80   /* 0x84 <7> */
+#define PIN_MUX_MDAT_EN_4_MASK          0x10   /* 0x89 <4> */
+#define PIN_MUX_MDAT_EN_5_MASK          0x20   /* 0x89 <5> */
+#define PIN_MUX_MDAT_EN_6_MASK          0x40   /* 0x89 <6> */
+#define PIN_MUX_MDAT_EN_7_MASK          0x80   /* 0x89 <7> */
+
+int mxl111sf_config_pin_mux_modes(struct mxl111sf_state *state,
+				  enum mxl111sf_mux_config pin_mux_config)
+{
+	u8 r12, r15, r17, r18, r3D, r82, r84, r89;
+	int ret;
+
+	mxl_debug("(%d)", pin_mux_config);
+
+	ret = mxl111sf_read_reg(state, 0x17, &r17);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_read_reg(state, 0x18, &r18);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_read_reg(state, 0x12, &r12);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_read_reg(state, 0x15, &r15);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_read_reg(state, 0x82, &r82);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_read_reg(state, 0x84, &r84);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_read_reg(state, 0x89, &r89);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_read_reg(state, 0x3D, &r3D);
+	if (mxl_fail(ret))
+		goto fail;
+
+	switch (pin_mux_config) {
+	case PIN_MUX_TS_OUT_PARALLEL:
+		/* mpeg_mode = 1 */
+		r17 |= PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 1 */
+		r18 |= PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 0 */
+		r15 &= ~PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 1 */
+		r82 |= PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 1 */
+		r82 |= PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 1 */
+		r82 |= PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 1 */
+		r82 |= PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0xF */
+		r84 |= 0xF0;
+		/* mdat_en_ctrl[7:4] = 0xF */
+		r89 |= 0xF0;
+		break;
+	case PIN_MUX_TS_OUT_SERIAL:
+		/* mpeg_mode = 1 */
+		r17 |= PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 1 */
+		r18 |= PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 0 */
+		r15 &= ~PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 1 */
+		r82 |= PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 1 */
+		r82 |= PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 1 */
+		r82 |= PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 1 */
+		r82 |= PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0xF */
+		r84 |= 0xF0;
+		/* mdat_en_ctrl[7:4] = 0xF */
+		r89 |= 0xF0;
+		break;
+	case PIN_MUX_GPIO_MODE:
+		/* mpeg_mode = 0 */
+		r17 &= ~PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 0 */
+		r15 &= ~PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	case PIN_MUX_TS_SERIAL_IN_MODE_0:
+		/* mpeg_mode = 0 */
+		r17 &= ~PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 1 */
+		r18 |= PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 0 */
+		r15 &= ~PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	case PIN_MUX_TS_SERIAL_IN_MODE_1:
+		/* mpeg_mode = 0 */
+		r17 &= ~PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 1 */
+		r18 |= PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 1 */
+		r3D |= PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 0 */
+		r15 &= ~PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	case PIN_MUX_TS_SPI_IN_MODE_1:
+		/* mpeg_mode = 0 */
+		r17 &= ~PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 1 */
+		r18 |= PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 1 */
+		r3D |= PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 1 */
+		r15 |= PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 1 */
+		r3D |= PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	case PIN_MUX_TS_SPI_IN_MODE_0:
+		/* mpeg_mode = 0 */
+		r17 &= ~PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 1 */
+		r18 |= PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 1 */
+		r15 |= PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 1 */
+		r3D |= PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	case PIN_MUX_TS_PARALLEL_IN:
+		/* mpeg_mode = 0 */
+		r17 &= ~PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 1 */
+		r18 |= PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 0 */
+		r15 &= ~PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	case PIN_MUX_BT656_I2S_MODE:
+		/* mpeg_mode = 0 */
+		r17 &= ~PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 1 */
+		r12 |= PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 1 */
+		r15 |= PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	case PIN_MUX_DEFAULT:
+	default:
+		/* mpeg_mode = 1 */
+		r17 |= PIN_MUX_MPEG_MODE_MASK;
+		/* mpeg_par_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_PAR_EN_MASK;
+		/* mpeg_ser_en = 0 */
+		r18 &= ~PIN_MUX_MPEG_SER_EN_MASK;
+		/* mpg_in_mux = 0 */
+		r3D &= ~PIN_MUX_MPG_IN_MUX_MASK;
+		/* bt656_enable = 0 */
+		r12 &= ~PIN_MUX_BT656_ENABLE_MASK;
+		/* i2s_enable = 0 */
+		r15 &= ~PIN_MUX_I2S_ENABLE_MASK;
+		/* spi_mode = 0 */
+		r3D &= ~PIN_MUX_SPI_MODE_MASK;
+		/* mclk_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MCLK_EN_CTRL_MASK;
+		/* mperr_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPERR_EN_CTRL_MASK;
+		/* mdval_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MDVAL_EN_CTRL_MASK;
+		/* mpsyn_en_ctrl = 0 */
+		r82 &= ~PIN_MUX_MPSYN_EN_CTRL_MASK;
+		/* mdat_en_ctrl[3:0] = 0x0 */
+		r84 &= 0x0F;
+		/* mdat_en_ctrl[7:4] = 0x0 */
+		r89 &= 0x0F;
+		break;
+	}
+
+	ret = mxl111sf_write_reg(state, 0x17, r17);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x18, r18);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x12, r12);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x15, r15);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x82, r82);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x84, r84);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x89, r89);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x3D, r3D);
+	if (mxl_fail(ret))
+		goto fail;
+fail:
+	return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int mxl111sf_hw_set_gpio(struct mxl111sf_state *state, int gpio, int val)
+{
+	return mxl111sf_hw_do_set_gpio(state, gpio, MXL_GPIO_DIR_OUTPUT, val);
+}
+
+static int mxl111sf_hw_gpio_initialize(struct mxl111sf_state *state)
+{
+	u8 gpioval = 0x07; /* write protect enabled, signal LEDs off */
+	int i, ret;
+
+	mxl_debug("()");
+
+	for (i = 3; i < 8; i++) {
+		ret = mxl111sf_hw_set_gpio(state, i, (gpioval >> i) & 0x01);
+		if (mxl_fail(ret))
+			break;
+	}
+
+	return ret;
+}
+
+#define PCA9534_I2C_ADDR (0x40 >> 1)
+static int pca9534_set_gpio(struct mxl111sf_state *state, int gpio, int val)
+{
+	u8 w[2] = { 1, 0 };
+	u8 r = 0;
+	struct i2c_msg msg[] = {
+		{ .addr = PCA9534_I2C_ADDR,
+		  .flags = 0, .buf = w, .len = 1 },
+		{ .addr = PCA9534_I2C_ADDR,
+		  .flags = I2C_M_RD, .buf = &r, .len = 1 },
+	};
+
+	mxl_debug("(%d, %d)", gpio, val);
+
+	/* read current GPIO levels from flip-flop */
+	i2c_transfer(&state->d->i2c_adap, msg, 2);
+
+	/* prepare write buffer with current GPIO levels */
+	msg[0].len = 2;
+#if 0
+	w[0] = 1;
+#endif
+	w[1] = r;
+
+	/* clear the desired GPIO */
+	w[1] &= ~(1 << gpio);
+
+	/* set the desired GPIO value */
+	w[1] |= ((val ? 1 : 0) << gpio);
+
+	/* write new GPIO levels to flip-flop */
+	i2c_transfer(&state->d->i2c_adap, &msg[0], 1);
+
+	return 0;
+}
+
+static int pca9534_init_port_expander(struct mxl111sf_state *state)
+{
+	u8 w[2] = { 1, 0x07 }; /* write protect enabled, signal LEDs off */
+
+	struct i2c_msg msg = {
+		.addr = PCA9534_I2C_ADDR,
+		.flags = 0, .buf = w, .len = 2
+	};
+
+	mxl_debug("()");
+
+	i2c_transfer(&state->d->i2c_adap, &msg, 1);
+
+	/* configure all pins as outputs */
+	w[0] = 3;
+	w[1] = 0;
+
+	i2c_transfer(&state->d->i2c_adap, &msg, 1);
+
+	return 0;
+}
+
+int mxl111sf_set_gpio(struct mxl111sf_state *state, int gpio, int val)
+{
+	mxl_debug("(%d, %d)", gpio, val);
+
+	switch (state->gpio_port_expander) {
+	default:
+		mxl_printk(KERN_ERR,
+			   "gpio_port_expander undefined, assuming PCA9534");
+		/* fall-thru */
+	case mxl111sf_PCA9534:
+		return pca9534_set_gpio(state, gpio, val);
+	case mxl111sf_gpio_hw:
+		return mxl111sf_hw_set_gpio(state, gpio, val);
+	}
+}
+
+static int mxl111sf_probe_port_expander(struct mxl111sf_state *state)
+{
+	int ret;
+	u8 w = 1;
+	u8 r = 0;
+	struct i2c_msg msg[] = {
+		{ .flags = 0,        .buf = &w, .len = 1 },
+		{ .flags = I2C_M_RD, .buf = &r, .len = 1 },
+	};
+
+	mxl_debug("()");
+
+	msg[0].addr = 0x70 >> 1;
+	msg[1].addr = 0x70 >> 1;
+
+	/* read current GPIO levels from flip-flop */
+	ret = i2c_transfer(&state->d->i2c_adap, msg, 2);
+	if (ret == 2) {
+		state->port_expander_addr = msg[0].addr;
+		state->gpio_port_expander = mxl111sf_PCA9534;
+		mxl_debug("found port expander at 0x%02x",
+			  state->port_expander_addr);
+		return 0;
+	}
+
+	msg[0].addr = 0x40 >> 1;
+	msg[1].addr = 0x40 >> 1;
+
+	ret = i2c_transfer(&state->d->i2c_adap, msg, 2);
+	if (ret == 2) {
+		state->port_expander_addr = msg[0].addr;
+		state->gpio_port_expander = mxl111sf_PCA9534;
+		mxl_debug("found port expander at 0x%02x",
+			  state->port_expander_addr);
+		return 0;
+	}
+	state->port_expander_addr = 0xff;
+	state->gpio_port_expander = mxl111sf_gpio_hw;
+	mxl_debug("using hardware gpio");
+	return 0;
+}
+
+int mxl111sf_init_port_expander(struct mxl111sf_state *state)
+{
+	mxl_debug("()");
+
+	if (0x00 == state->port_expander_addr)
+		mxl111sf_probe_port_expander(state);
+
+	switch (state->gpio_port_expander) {
+	default:
+		mxl_printk(KERN_ERR,
+			   "gpio_port_expander undefined, assuming PCA9534");
+		/* fall-thru */
+	case mxl111sf_PCA9534:
+		return pca9534_init_port_expander(state);
+	case mxl111sf_gpio_hw:
+		return mxl111sf_hw_gpio_initialize(state);
+	}
+}
+
+/* ------------------------------------------------------------------------ */
+
+int mxl111sf_gpio_mode_switch(struct mxl111sf_state *state, unsigned int mode)
+{
+/*	GPO:
+ *	3 - ATSC/MH#   | 1 = ATSC transport, 0 = MH transport      | default 0
+ *	4 - ATSC_RST## | 1 = ATSC enable, 0 = ATSC Reset           | default 0
+ *	5 - ATSC_EN    | 1 = ATSC power enable, 0 = ATSC power off | default 0
+ *	6 - MH_RESET#  | 1 = MH enable, 0 = MH Reset               | default 0
+ *	7 - MH_EN      | 1 = MH power enable, 0 = MH power off     | default 0
+ */
+	mxl_debug("(%d)", mode);
+
+	switch (mode) {
+	case MXL111SF_GPIO_MOD_MH:
+		mxl111sf_set_gpio(state, 4, 0);
+		mxl111sf_set_gpio(state, 5, 0);
+		msleep(50);
+		mxl111sf_set_gpio(state, 7, 1);
+		msleep(50);
+		mxl111sf_set_gpio(state, 6, 1);
+		msleep(50);
+
+		mxl111sf_set_gpio(state, 3, 0);
+		break;
+	case MXL111SF_GPIO_MOD_ATSC:
+		mxl111sf_set_gpio(state, 6, 0);
+		mxl111sf_set_gpio(state, 7, 0);
+		msleep(50);
+		mxl111sf_set_gpio(state, 5, 1);
+		msleep(50);
+		mxl111sf_set_gpio(state, 4, 1);
+		msleep(50);
+		mxl111sf_set_gpio(state, 3, 1);
+		break;
+	default: /* DVBT / STANDBY */
+		mxl111sf_init_port_expander(state);
+		break;
+	}
+	return 0;
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-gpio.h

@@ -0,0 +1,56 @@
+/*
+ *  mxl111sf-gpio.h - driver for the MaxLinear MXL111SF
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _DVB_USB_MXL111SF_GPIO_H_
+#define _DVB_USB_MXL111SF_GPIO_H_
+
+#include "mxl111sf.h"
+
+int mxl111sf_set_gpio(struct mxl111sf_state *state, int gpio, int val);
+int mxl111sf_init_port_expander(struct mxl111sf_state *state);
+
+#define MXL111SF_GPIO_MOD_DVBT	0
+#define MXL111SF_GPIO_MOD_MH	1
+#define MXL111SF_GPIO_MOD_ATSC	2
+int mxl111sf_gpio_mode_switch(struct mxl111sf_state *state, unsigned int mode);
+
+enum mxl111sf_mux_config {
+	PIN_MUX_DEFAULT = 0,
+	PIN_MUX_TS_OUT_PARALLEL,
+	PIN_MUX_TS_OUT_SERIAL,
+	PIN_MUX_GPIO_MODE,
+	PIN_MUX_TS_SERIAL_IN_MODE_0,
+	PIN_MUX_TS_SERIAL_IN_MODE_1,
+	PIN_MUX_TS_SPI_IN_MODE_0,
+	PIN_MUX_TS_SPI_IN_MODE_1,
+	PIN_MUX_TS_PARALLEL_IN,
+	PIN_MUX_BT656_I2S_MODE,
+};
+
+int mxl111sf_config_pin_mux_modes(struct mxl111sf_state *state,
+				  enum mxl111sf_mux_config pin_mux_config);
+
+#endif /* _DVB_USB_MXL111SF_GPIO_H_ */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c

@@ -0,0 +1,850 @@
+/*
+ *  mxl111sf-i2c.c - driver for the MaxLinear MXL111SF
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "mxl111sf-i2c.h"
+#include "mxl111sf.h"
+
+/* SW-I2C ----------------------------------------------------------------- */
+
+#define SW_I2C_ADDR		0x1a
+#define SW_I2C_EN		0x02
+#define SW_SCL_OUT		0x04
+#define SW_SDA_OUT		0x08
+#define SW_SDA_IN		0x04
+
+#define SW_I2C_BUSY_ADDR	0x2f
+#define SW_I2C_BUSY		0x02
+
+static int mxl111sf_i2c_bitbang_sendbyte(struct mxl111sf_state *state,
+					 u8 byte)
+{
+	int i, ret;
+	u8 data = 0;
+
+	mxl_i2c("(0x%02x)", byte);
+
+	ret = mxl111sf_read_reg(state, SW_I2C_BUSY_ADDR, &data);
+	if (mxl_fail(ret))
+		goto fail;
+
+	for (i = 0; i < 8; i++) {
+
+		data = (byte & (0x80 >> i)) ? SW_SDA_OUT : 0;
+
+		ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+					 0x10 | SW_I2C_EN | data);
+		if (mxl_fail(ret))
+			goto fail;
+
+		ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+					 0x10 | SW_I2C_EN | data | SW_SCL_OUT);
+		if (mxl_fail(ret))
+			goto fail;
+
+		ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+					 0x10 | SW_I2C_EN | data);
+		if (mxl_fail(ret))
+			goto fail;
+	}
+
+	/* last bit was 0 so we need to release SDA */
+	if (!(byte & 1)) {
+		ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+					 0x10 | SW_I2C_EN | SW_SDA_OUT);
+		if (mxl_fail(ret))
+			goto fail;
+	}
+
+	/* CLK high for ACK readback */
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SCL_OUT | SW_SDA_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_read_reg(state, SW_I2C_BUSY_ADDR, &data);
+	if (mxl_fail(ret))
+		goto fail;
+
+	/* drop the CLK after getting ACK, SDA will go high right away */
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SDA_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	if (data & SW_SDA_IN)
+		ret = -EIO;
+fail:
+	return ret;
+}
+
+static int mxl111sf_i2c_bitbang_recvbyte(struct mxl111sf_state *state,
+					 u8 *pbyte)
+{
+	int i, ret;
+	u8 byte = 0;
+	u8 data = 0;
+
+	mxl_i2c("()");
+
+	*pbyte = 0;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SDA_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	for (i = 0; i < 8; i++) {
+		ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+					 0x10 | SW_I2C_EN |
+					 SW_SCL_OUT | SW_SDA_OUT);
+		if (mxl_fail(ret))
+			goto fail;
+
+		ret = mxl111sf_read_reg(state, SW_I2C_BUSY_ADDR, &data);
+		if (mxl_fail(ret))
+			goto fail;
+
+		if (data & SW_SDA_IN)
+			byte |= (0x80 >> i);
+
+		ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+					 0x10 | SW_I2C_EN | SW_SDA_OUT);
+		if (mxl_fail(ret))
+			goto fail;
+	}
+	*pbyte = byte;
+fail:
+	return ret;
+}
+
+static int mxl111sf_i2c_start(struct mxl111sf_state *state)
+{
+	int ret;
+
+	mxl_i2c("()");
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SCL_OUT | SW_SDA_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SCL_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN); /* start */
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+static int mxl111sf_i2c_stop(struct mxl111sf_state *state)
+{
+	int ret;
+
+	mxl_i2c("()");
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN); /* stop */
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SCL_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SCL_OUT | SW_SDA_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_SCL_OUT | SW_SDA_OUT);
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+static int mxl111sf_i2c_ack(struct mxl111sf_state *state)
+{
+	int ret;
+	u8 b = 0;
+
+	mxl_i2c("()");
+
+	ret = mxl111sf_read_reg(state, SW_I2C_BUSY_ADDR, &b);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN);
+	if (mxl_fail(ret))
+		goto fail;
+
+	/* pull SDA low */
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SCL_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SDA_OUT);
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+static int mxl111sf_i2c_nack(struct mxl111sf_state *state)
+{
+	int ret;
+
+	mxl_i2c("()");
+
+	/* SDA high to signal last byte read from slave */
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SCL_OUT | SW_SDA_OUT);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, SW_I2C_ADDR,
+				 0x10 | SW_I2C_EN | SW_SDA_OUT);
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static int mxl111sf_i2c_sw_xfer_msg(struct mxl111sf_state *state,
+				    struct i2c_msg *msg)
+{
+	int i, ret;
+
+	mxl_i2c("()");
+
+	if (msg->flags & I2C_M_RD) {
+
+		ret = mxl111sf_i2c_start(state);
+		if (mxl_fail(ret))
+			goto fail;
+
+		ret = mxl111sf_i2c_bitbang_sendbyte(state,
+						    (msg->addr << 1) | 0x01);
+		if (mxl_fail(ret)) {
+			mxl111sf_i2c_stop(state);
+			goto fail;
+		}
+
+		for (i = 0; i < msg->len; i++) {
+			ret = mxl111sf_i2c_bitbang_recvbyte(state,
+							    &msg->buf[i]);
+			if (mxl_fail(ret)) {
+				mxl111sf_i2c_stop(state);
+				goto fail;
+			}
+
+			if (i < msg->len - 1)
+				mxl111sf_i2c_ack(state);
+		}
+
+		mxl111sf_i2c_nack(state);
+
+		ret = mxl111sf_i2c_stop(state);
+		if (mxl_fail(ret))
+			goto fail;
+
+	} else {
+
+		ret = mxl111sf_i2c_start(state);
+		if (mxl_fail(ret))
+			goto fail;
+
+		ret = mxl111sf_i2c_bitbang_sendbyte(state,
+						    (msg->addr << 1) & 0xfe);
+		if (mxl_fail(ret)) {
+			mxl111sf_i2c_stop(state);
+			goto fail;
+		}
+
+		for (i = 0; i < msg->len; i++) {
+			ret = mxl111sf_i2c_bitbang_sendbyte(state,
+							    msg->buf[i]);
+			if (mxl_fail(ret)) {
+				mxl111sf_i2c_stop(state);
+				goto fail;
+			}
+		}
+
+		/* FIXME: we only want to do this on the last transaction */
+		mxl111sf_i2c_stop(state);
+	}
+fail:
+	return ret;
+}
+
+/* HW-I2C ----------------------------------------------------------------- */
+
+#define USB_WRITE_I2C_CMD     0x99
+#define USB_READ_I2C_CMD      0xdd
+#define USB_END_I2C_CMD       0xfe
+
+#define USB_WRITE_I2C_CMD_LEN   26
+#define USB_READ_I2C_CMD_LEN    24
+
+#define I2C_MUX_REG           0x30
+#define I2C_CONTROL_REG       0x00
+#define I2C_SLAVE_ADDR_REG    0x08
+#define I2C_DATA_REG          0x0c
+#define I2C_INT_STATUS_REG    0x10
+
+static int mxl111sf_i2c_send_data(struct mxl111sf_state *state,
+				  u8 index, u8 *wdata)
+{
+	int ret = mxl111sf_ctrl_msg(state->d, wdata[0],
+				    &wdata[1], 25, NULL, 0);
+	mxl_fail(ret);
+
+	return ret;
+}
+
+static int mxl111sf_i2c_get_data(struct mxl111sf_state *state,
+				 u8 index, u8 *wdata, u8 *rdata)
+{
+	int ret = mxl111sf_ctrl_msg(state->d, wdata[0],
+				    &wdata[1], 25, rdata, 24);
+	mxl_fail(ret);
+
+	return ret;
+}
+
+static u8 mxl111sf_i2c_check_status(struct mxl111sf_state *state)
+{
+	u8 status = 0;
+	u8 buf[26];
+
+	mxl_i2c_adv("()");
+
+	buf[0] = USB_READ_I2C_CMD;
+	buf[1] = 0x00;
+
+	buf[2] = I2C_INT_STATUS_REG;
+	buf[3] = 0x00;
+	buf[4] = 0x00;
+
+	buf[5] = USB_END_I2C_CMD;
+
+	mxl111sf_i2c_get_data(state, 0, buf, buf);
+
+	if (buf[1] & 0x04)
+		status = 1;
+
+	return status;
+}
+
+static u8 mxl111sf_i2c_check_fifo(struct mxl111sf_state *state)
+{
+	u8 status = 0;
+	u8 buf[26];
+
+	mxl_i2c("()");
+
+	buf[0] = USB_READ_I2C_CMD;
+	buf[1] = 0x00;
+
+	buf[2] = I2C_MUX_REG;
+	buf[3] = 0x00;
+	buf[4] = 0x00;
+
+	buf[5] = I2C_INT_STATUS_REG;
+	buf[6] = 0x00;
+	buf[7] = 0x00;
+	buf[8] = USB_END_I2C_CMD;
+
+	mxl111sf_i2c_get_data(state, 0, buf, buf);
+
+	if (0x08 == (buf[1] & 0x08))
+		status = 1;
+
+	if ((buf[5] & 0x02) == 0x02)
+		mxl_i2c("(buf[5] & 0x02) == 0x02"); /* FIXME */
+
+	return status;
+}
+
+static int mxl111sf_i2c_readagain(struct mxl111sf_state *state,
+				  u8 count, u8 *rbuf)
+{
+	u8 i2c_w_data[26];
+	u8 i2c_r_data[24];
+	u8 i = 0;
+	u8 fifo_status = 0;
+	int status = 0;
+
+	mxl_i2c("read %d bytes", count);
+
+	while ((fifo_status == 0) && (i++ < 5))
+		fifo_status = mxl111sf_i2c_check_fifo(state);
+
+	i2c_w_data[0] = 0xDD;
+	i2c_w_data[1] = 0x00;
+
+	for (i = 2; i < 26; i++)
+		i2c_w_data[i] = 0xFE;
+
+	for (i = 0; i < count; i++) {
+		i2c_w_data[2+(i*3)] = 0x0C;
+		i2c_w_data[3+(i*3)] = 0x00;
+		i2c_w_data[4+(i*3)] = 0x00;
+	}
+
+	mxl111sf_i2c_get_data(state, 0, i2c_w_data, i2c_r_data);
+
+	/* Check for I2C NACK status */
+	if (mxl111sf_i2c_check_status(state) == 1) {
+		mxl_i2c("error!");
+	} else {
+		for (i = 0; i < count; i++) {
+			rbuf[i] = i2c_r_data[(i*3)+1];
+			mxl_i2c("%02x\t %02x",
+				i2c_r_data[(i*3)+1],
+				i2c_r_data[(i*3)+2]);
+		}
+
+		status = 1;
+	}
+
+	return status;
+}
+
+#define HWI2C400 1
+static int mxl111sf_i2c_hw_xfer_msg(struct mxl111sf_state *state,
+				    struct i2c_msg *msg)
+{
+	int i, k, ret = 0;
+	u16 index = 0;
+	u8 buf[26];
+	u8 i2c_r_data[24];
+	u16 block_len;
+	u16 left_over_len;
+	u8 rd_status[8];
+	u8 ret_status;
+	u8 readbuff[26];
+
+	mxl_i2c("addr: 0x%02x, read buff len: %d, write buff len: %d",
+		msg->addr, (msg->flags & I2C_M_RD) ? msg->len : 0,
+		(!(msg->flags & I2C_M_RD)) ? msg->len : 0);
+
+	for (index = 0; index < 26; index++)
+		buf[index] = USB_END_I2C_CMD;
+
+	/* command to indicate data payload is destined for I2C interface */
+	buf[0] = USB_WRITE_I2C_CMD;
+	buf[1] = 0x00;
+
+	/* enable I2C interface */
+	buf[2] = I2C_MUX_REG;
+	buf[3] = 0x80;
+	buf[4] = 0x00;
+
+	/* enable I2C interface */
+	buf[5] = I2C_MUX_REG;
+	buf[6] = 0x81;
+	buf[7] = 0x00;
+
+	/* set Timeout register on I2C interface */
+	buf[8] = 0x14;
+	buf[9] = 0xff;
+	buf[10] = 0x00;
+#if 0
+	/* enable Interrupts on I2C interface */
+	buf[8] = 0x24;
+	buf[9] = 0xF7;
+	buf[10] = 0x00;
+#endif
+	buf[11] = 0x24;
+	buf[12] = 0xF7;
+	buf[13] = 0x00;
+
+	ret = mxl111sf_i2c_send_data(state, 0, buf);
+
+	/* write data on I2C bus */
+	if (!(msg->flags & I2C_M_RD) && (msg->len > 0)) {
+		mxl_i2c("%d\t%02x", msg->len, msg->buf[0]);
+
+		/* control register on I2C interface to initialize I2C bus */
+		buf[2] = I2C_CONTROL_REG;
+		buf[3] = 0x5E;
+		buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+
+		/* I2C Slave device Address */
+		buf[5] = I2C_SLAVE_ADDR_REG;
+		buf[6] = (msg->addr);
+		buf[7] = 0x00;
+		buf[8] = USB_END_I2C_CMD;
+		ret = mxl111sf_i2c_send_data(state, 0, buf);
+
+		/* check for slave device status */
+		if (mxl111sf_i2c_check_status(state) == 1) {
+			mxl_i2c("NACK writing slave address %02x",
+				msg->addr);
+			/* if NACK, stop I2C bus and exit */
+			buf[2] = I2C_CONTROL_REG;
+			buf[3] = 0x4E;
+			buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+			ret = -EIO;
+			goto exit;
+		}
+
+		/* I2C interface can do I2C operations in block of 8 bytes of
+		   I2C data. calculation to figure out number of blocks of i2c
+		   data required to program */
+		block_len = (msg->len / 8);
+		left_over_len = (msg->len % 8);
+		index = 0;
+
+		mxl_i2c("block_len %d, left_over_len %d",
+			block_len, left_over_len);
+
+		for (index = 0; index < block_len; index++) {
+			for (i = 0; i < 8; i++) {
+				/* write data on I2C interface */
+				buf[2+(i*3)] = I2C_DATA_REG;
+				buf[3+(i*3)] = msg->buf[(index*8)+i];
+				buf[4+(i*3)] = 0x00;
+			}
+
+			ret = mxl111sf_i2c_send_data(state, 0, buf);
+
+			/* check for I2C NACK status */
+			if (mxl111sf_i2c_check_status(state) == 1) {
+				mxl_i2c("NACK writing slave address %02x",
+					msg->addr);
+
+				/* if NACK, stop I2C bus and exit */
+				buf[2] = I2C_CONTROL_REG;
+				buf[3] = 0x4E;
+				buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+				ret = -EIO;
+				goto exit;
+			}
+
+		}
+
+		if (left_over_len) {
+			for (k = 0; k < 26; k++)
+				buf[k] = USB_END_I2C_CMD;
+
+			buf[0] = 0x99;
+			buf[1] = 0x00;
+
+			for (i = 0; i < left_over_len; i++) {
+				buf[2+(i*3)] = I2C_DATA_REG;
+				buf[3+(i*3)] = msg->buf[(index*8)+i];
+				mxl_i2c("index = %d %d data %d",
+					index, i, msg->buf[(index*8)+i]);
+				buf[4+(i*3)] = 0x00;
+			}
+			ret = mxl111sf_i2c_send_data(state, 0, buf);
+
+			/* check for I2C NACK status */
+			if (mxl111sf_i2c_check_status(state) == 1) {
+				mxl_i2c("NACK writing slave address %02x",
+					msg->addr);
+
+				/* if NACK, stop I2C bus and exit */
+				buf[2] = I2C_CONTROL_REG;
+				buf[3] = 0x4E;
+				buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+				ret = -EIO;
+				goto exit;
+			}
+
+		}
+
+		/* issue I2C STOP after write */
+		buf[2] = I2C_CONTROL_REG;
+		buf[3] = 0x4E;
+		buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+
+	}
+
+	/* read data from I2C bus */
+	if ((msg->flags & I2C_M_RD) && (msg->len > 0)) {
+		mxl_i2c("read buf len %d", msg->len);
+
+		/* command to indicate data payload is
+		   destined for I2C interface */
+		buf[2] = I2C_CONTROL_REG;
+		buf[3] = 0xDF;
+		buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+
+		/* I2C xfer length */
+		buf[5] = 0x14;
+		buf[6] = (msg->len & 0xFF);
+		buf[7] = 0;
+
+		/* I2C slave device Address */
+		buf[8] = I2C_SLAVE_ADDR_REG;
+		buf[9] = msg->addr;
+		buf[10] = 0x00;
+		buf[11] = USB_END_I2C_CMD;
+		ret = mxl111sf_i2c_send_data(state, 0, buf);
+
+		/* check for I2C NACK status */
+		if (mxl111sf_i2c_check_status(state) == 1) {
+			mxl_i2c("NACK reading slave address %02x",
+				msg->addr);
+
+			/* if NACK, stop I2C bus and exit */
+			buf[2] = I2C_CONTROL_REG;
+			buf[3] = 0xC7;
+			buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+			ret = -EIO;
+			goto exit;
+		}
+
+		/* I2C interface can do I2C operations in block of 8 bytes of
+		   I2C data. calculation to figure out number of blocks of
+		   i2c data required to program */
+		block_len = ((msg->len) / 8);
+		left_over_len = ((msg->len) % 8);
+		index = 0;
+
+		mxl_i2c("block_len %d, left_over_len %d",
+			block_len, left_over_len);
+
+		/* command to read data from I2C interface */
+		buf[0] = USB_READ_I2C_CMD;
+		buf[1] = 0x00;
+
+		for (index = 0; index < block_len; index++) {
+			/* setup I2C read request packet on I2C interface */
+			for (i = 0; i < 8; i++) {
+				buf[2+(i*3)] = I2C_DATA_REG;
+				buf[3+(i*3)] = 0x00;
+				buf[4+(i*3)] = 0x00;
+			}
+
+			ret = mxl111sf_i2c_get_data(state, 0, buf, i2c_r_data);
+
+			/* check for I2C NACK status */
+			if (mxl111sf_i2c_check_status(state) == 1) {
+				mxl_i2c("NACK reading slave address %02x",
+					msg->addr);
+
+				/* if NACK, stop I2C bus and exit */
+				buf[2] = I2C_CONTROL_REG;
+				buf[3] = 0xC7;
+				buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+				ret = -EIO;
+				goto exit;
+			}
+
+			/* copy data from i2c data payload to read buffer */
+			for (i = 0; i < 8; i++) {
+				rd_status[i] = i2c_r_data[(i*3)+2];
+
+				if (rd_status[i] == 0x04) {
+					if (i < 7) {
+						mxl_i2c("i2c fifo empty!"
+							" @ %d", i);
+						msg->buf[(index*8)+i] =
+							i2c_r_data[(i*3)+1];
+						/* read again */
+						ret_status =
+							mxl111sf_i2c_readagain(
+								state, 8-(i+1),
+								readbuff);
+						if (ret_status == 1) {
+							for (k = 0;
+							     k < 8-(i+1);
+							     k++) {
+
+					msg->buf[(index*8)+(k+i+1)] =
+						readbuff[k];
+					mxl_i2c("read data: %02x\t %02x",
+						msg->buf[(index*8)+(k+i)],
+						(index*8)+(k+i));
+					mxl_i2c("read data: %02x\t %02x",
+						msg->buf[(index*8)+(k+i+1)],
+						readbuff[k]);
+
+							}
+							goto stop_copy;
+						} else {
+							mxl_i2c("readagain "
+								"ERROR!");
+						}
+					} else {
+						msg->buf[(index*8)+i] =
+							i2c_r_data[(i*3)+1];
+					}
+				} else {
+					msg->buf[(index*8)+i] =
+						i2c_r_data[(i*3)+1];
+				}
+			}
+stop_copy:
+			;
+
+		}
+
+		if (left_over_len) {
+			for (k = 0; k < 26; k++)
+				buf[k] = USB_END_I2C_CMD;
+
+			buf[0] = 0xDD;
+			buf[1] = 0x00;
+
+			for (i = 0; i < left_over_len; i++) {
+				buf[2+(i*3)] = I2C_DATA_REG;
+				buf[3+(i*3)] = 0x00;
+				buf[4+(i*3)] = 0x00;
+			}
+			ret = mxl111sf_i2c_get_data(state, 0, buf,
+						    i2c_r_data);
+
+			/* check for I2C NACK status */
+			if (mxl111sf_i2c_check_status(state) == 1) {
+				mxl_i2c("NACK reading slave address %02x",
+					msg->addr);
+
+				/* if NACK, stop I2C bus and exit */
+				buf[2] = I2C_CONTROL_REG;
+				buf[3] = 0xC7;
+				buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+				ret = -EIO;
+				goto exit;
+			}
+
+			for (i = 0; i < left_over_len; i++) {
+				msg->buf[(block_len*8)+i] =
+					i2c_r_data[(i*3)+1];
+				mxl_i2c("read data: %02x\t %02x",
+					i2c_r_data[(i*3)+1],
+					i2c_r_data[(i*3)+2]);
+			}
+		}
+
+		/* indicate I2C interface to issue NACK
+		   after next I2C read op */
+		buf[0] = USB_WRITE_I2C_CMD;
+		buf[1] = 0x00;
+
+		/* control register */
+		buf[2] = I2C_CONTROL_REG;
+		buf[3] = 0x17;
+		buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+
+		buf[5] = USB_END_I2C_CMD;
+		ret = mxl111sf_i2c_send_data(state, 0, buf);
+
+		/* control register */
+		buf[2] = I2C_CONTROL_REG;
+		buf[3] = 0xC7;
+		buf[4] = (HWI2C400) ? 0x03 : 0x0D;
+
+	}
+exit:
+	/* STOP and disable I2C MUX */
+	buf[0] = USB_WRITE_I2C_CMD;
+	buf[1] = 0x00;
+
+	/* de-initilize I2C BUS */
+	buf[5] = USB_END_I2C_CMD;
+	mxl111sf_i2c_send_data(state, 0, buf);
+
+	/* Control Register */
+	buf[2] = I2C_CONTROL_REG;
+	buf[3] = 0xDF;
+	buf[4] = 0x03;
+
+	/* disable I2C interface */
+	buf[5] = I2C_MUX_REG;
+	buf[6] = 0x00;
+	buf[7] = 0x00;
+
+	/* de-initilize I2C BUS */
+	buf[8] = USB_END_I2C_CMD;
+	mxl111sf_i2c_send_data(state, 0, buf);
+
+	/* disable I2C interface */
+	buf[2] = I2C_MUX_REG;
+	buf[3] = 0x81;
+	buf[4] = 0x00;
+
+	/* disable I2C interface */
+	buf[5] = I2C_MUX_REG;
+	buf[6] = 0x00;
+	buf[7] = 0x00;
+
+	/* disable I2C interface */
+	buf[8] = I2C_MUX_REG;
+	buf[9] = 0x00;
+	buf[10] = 0x00;
+
+	buf[11] = USB_END_I2C_CMD;
+	mxl111sf_i2c_send_data(state, 0, buf);
+
+	return ret;
+}
+
+/* ------------------------------------------------------------------------ */
+
+int mxl111sf_i2c_xfer(struct i2c_adapter *adap,
+		      struct i2c_msg msg[], int num)
+{
+	struct dvb_usb_device *d = i2c_get_adapdata(adap);
+	struct mxl111sf_state *state = d->priv;
+	int hwi2c = (state->chip_rev > MXL111SF_V6);
+	int i, ret;
+
+	if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
+		return -EAGAIN;
+
+	for (i = 0; i < num; i++) {
+		ret = (hwi2c) ?
+			mxl111sf_i2c_hw_xfer_msg(state, &msg[i]) :
+			mxl111sf_i2c_sw_xfer_msg(state, &msg[i]);
+		if (mxl_fail(ret)) {
+			mxl_debug_adv("failed with error %d on i2c "
+				      "transaction %d of %d, %sing %d bytes "
+				      "to/from 0x%02x", ret, i+1, num,
+				      (msg[i].flags & I2C_M_RD) ?
+				      "read" : "writ",
+				      msg[i].len, msg[i].addr);
+
+			break;
+		}
+	}
+
+	mutex_unlock(&d->i2c_mutex);
+
+	return i == num ? num : -EREMOTEIO;
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.h

@@ -0,0 +1,35 @@
+/*
+ *  mxl111sf-i2c.h - driver for the MaxLinear MXL111SF
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _DVB_USB_MXL111SF_I2C_H_
+#define _DVB_USB_MXL111SF_I2C_H_
+
+#include <linux/i2c.h>
+
+int mxl111sf_i2c_xfer(struct i2c_adapter *adap,
+		      struct i2c_msg msg[], int num);
+
+#endif /* _DVB_USB_MXL111SF_I2C_H_ */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-phy.c

@@ -0,0 +1,343 @@
+/*
+ *  mxl111sf-phy.c - driver for the MaxLinear MXL111SF
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "mxl111sf-phy.h"
+#include "mxl111sf-reg.h"
+
+int mxl111sf_init_tuner_demod(struct mxl111sf_state *state)
+{
+	struct mxl111sf_reg_ctrl_info mxl_111_overwrite_default[] = {
+		{0x07, 0xff, 0x0c},
+		{0x58, 0xff, 0x9d},
+		{0x09, 0xff, 0x00},
+		{0x06, 0xff, 0x06},
+		{0xc8, 0xff, 0x40}, /* ED_LE_WIN_OLD = 0 */
+		{0x8d, 0x01, 0x01}, /* NEGATE_Q */
+		{0x32, 0xff, 0xac}, /* DIG_RFREFSELECT = 12 */
+		{0x42, 0xff, 0x43}, /* DIG_REG_AMP = 4 */
+		{0x74, 0xff, 0xc4}, /* SSPUR_FS_PRIO = 4 */
+		{0x71, 0xff, 0xe6}, /* SPUR_ROT_PRIO_VAL = 1 */
+		{0x83, 0xff, 0x64}, /* INF_FILT1_THD_SC = 100 */
+		{0x85, 0xff, 0x64}, /* INF_FILT2_THD_SC = 100 */
+		{0x88, 0xff, 0xf0}, /* INF_THD = 240 */
+		{0x6f, 0xf0, 0xb0}, /* DFE_DLY = 11 */
+		{0x00, 0xff, 0x01}, /* Change to page 1 */
+		{0x81, 0xff, 0x11}, /* DSM_FERR_BYPASS = 1 */
+		{0xf4, 0xff, 0x07}, /* DIG_FREQ_CORR = 1 */
+		{0xd4, 0x1f, 0x0f}, /* SPUR_TEST_NOISE_TH = 15 */
+		{0xd6, 0xff, 0x0c}, /* SPUR_TEST_NOISE_PAPR = 12 */
+		{0x00, 0xff, 0x00}, /* Change to page 0 */
+		{0,    0,    0}
+	};
+
+	mxl_debug("()");
+
+	return mxl111sf_ctrl_program_regs(state, mxl_111_overwrite_default);
+}
+
+int mxl1x1sf_soft_reset(struct mxl111sf_state *state)
+{
+	int ret;
+	mxl_debug("()");
+
+	ret = mxl111sf_write_reg(state, 0xff, 0x00); /* AIC */
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_write_reg(state, 0x02, 0x01); /* get out of reset */
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+int mxl1x1sf_set_device_mode(struct mxl111sf_state *state, int mode)
+{
+	int ret;
+
+	mxl_debug("(%s)", MXL_SOC_MODE == mode ?
+		"MXL_SOC_MODE" : "MXL_TUNER_MODE");
+
+	/* set device mode */
+	ret = mxl111sf_write_reg(state, 0x03,
+				 MXL_SOC_MODE == mode ? 0x01 : 0x00);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg_mask(state,
+				      0x7d, 0x40, MXL_SOC_MODE == mode ?
+				      0x00 : /* enable impulse noise filter,
+						INF_BYP = 0 */
+				      0x40); /* disable impulse noise filter,
+						INF_BYP = 1 */
+	if (mxl_fail(ret))
+		goto fail;
+
+	state->device_mode = mode;
+fail:
+	return ret;
+}
+
+/* power up tuner */
+int mxl1x1sf_top_master_ctrl(struct mxl111sf_state *state, int onoff)
+{
+	mxl_debug("(%d)", onoff);
+
+	return mxl111sf_write_reg(state, 0x01, onoff ? 0x01 : 0x00);
+}
+
+int mxl111sf_disable_656_port(struct mxl111sf_state *state)
+{
+	mxl_debug("()");
+
+	return mxl111sf_write_reg_mask(state, 0x12, 0x04, 0x00);
+}
+
+int mxl111sf_enable_usb_output(struct mxl111sf_state *state)
+{
+	mxl_debug("()");
+
+	return mxl111sf_write_reg_mask(state, 0x17, 0x40, 0x00);
+}
+
+/* initialize TSIF as input port of MxL1X1SF for MPEG2 data transfer */
+int mxl111sf_config_mpeg_in(struct mxl111sf_state *state,
+			    unsigned int parallel_serial,
+			    unsigned int msb_lsb_1st,
+			    unsigned int clock_phase,
+			    unsigned int mpeg_valid_pol,
+			    unsigned int mpeg_sync_pol)
+{
+	int ret;
+	u8 mode, tmp;
+
+	mxl_debug("(%u,%u,%u,%u,%u)", parallel_serial, msb_lsb_1st,
+		  clock_phase, mpeg_valid_pol, mpeg_sync_pol);
+
+	/* Enable PIN MUX */
+	ret = mxl111sf_write_reg(state, V6_PIN_MUX_MODE_REG, V6_ENABLE_PIN_MUX);
+	mxl_fail(ret);
+
+	/* Configure MPEG Clock phase */
+	mxl111sf_read_reg(state, V6_MPEG_IN_CLK_INV_REG, &mode);
+
+	if (clock_phase == TSIF_NORMAL)
+		mode &= ~V6_INVERTED_CLK_PHASE;
+	else
+		mode |= V6_INVERTED_CLK_PHASE;
+
+	ret = mxl111sf_write_reg(state, V6_MPEG_IN_CLK_INV_REG, mode);
+	mxl_fail(ret);
+
+	/* Configure data input mode, MPEG Valid polarity, MPEG Sync polarity
+	 * Get current configuration */
+	ret = mxl111sf_read_reg(state, V6_MPEG_IN_CTRL_REG, &mode);
+	mxl_fail(ret);
+
+	/* Data Input mode */
+	if (parallel_serial == TSIF_INPUT_PARALLEL) {
+		/* Disable serial mode */
+		mode &= ~V6_MPEG_IN_DATA_SERIAL;
+
+		/* Enable Parallel mode */
+		mode |= V6_MPEG_IN_DATA_PARALLEL;
+	} else {
+		/* Disable Parallel mode */
+		mode &= ~V6_MPEG_IN_DATA_PARALLEL;
+
+		/* Enable Serial Mode */
+		mode |= V6_MPEG_IN_DATA_SERIAL;
+
+		/* If serial interface is chosen, configure
+		   MSB or LSB order in transmission */
+		ret = mxl111sf_read_reg(state,
+					V6_MPEG_INOUT_BIT_ORDER_CTRL_REG,
+					&tmp);
+		mxl_fail(ret);
+
+		if (msb_lsb_1st == MPEG_SER_MSB_FIRST_ENABLED)
+			tmp |= V6_MPEG_SER_MSB_FIRST;
+		else
+			tmp &= ~V6_MPEG_SER_MSB_FIRST;
+
+		ret = mxl111sf_write_reg(state,
+					 V6_MPEG_INOUT_BIT_ORDER_CTRL_REG,
+					 tmp);
+		mxl_fail(ret);
+	}
+
+	/* MPEG Sync polarity */
+	if (mpeg_sync_pol == TSIF_NORMAL)
+		mode &= ~V6_INVERTED_MPEG_SYNC;
+	else
+		mode |= V6_INVERTED_MPEG_SYNC;
+
+	/* MPEG Valid polarity */
+	if (mpeg_valid_pol == 0)
+		mode &= ~V6_INVERTED_MPEG_VALID;
+	else
+		mode |= V6_INVERTED_MPEG_VALID;
+
+	ret = mxl111sf_write_reg(state, V6_MPEG_IN_CTRL_REG, mode);
+	mxl_fail(ret);
+
+	return ret;
+}
+
+int mxl111sf_init_i2s_port(struct mxl111sf_state *state, u8 sample_size)
+{
+	static struct mxl111sf_reg_ctrl_info init_i2s[] = {
+		{0x1b, 0xff, 0x1e}, /* pin mux mode, Choose 656/I2S input */
+		{0x15, 0x60, 0x60}, /* Enable I2S */
+		{0x17, 0xe0, 0x20}, /* Input, MPEG MODE USB,
+				       Inverted 656 Clock, I2S_SOFT_RESET,
+				       0 : Normal operation, 1 : Reset State */
+#if 0
+		{0x12, 0x01, 0x00}, /* AUDIO_IRQ_CLR (Overflow Indicator) */
+#endif
+		{0x00, 0xff, 0x02}, /* Change to Control Page */
+		{0x26, 0x0d, 0x0d}, /* I2S_MODE & BT656_SRC_SEL for FPGA only */
+		{0x00, 0xff, 0x00},
+		{0,    0,    0}
+	};
+	int ret;
+
+	mxl_debug("(0x%02x)", sample_size);
+
+	ret = mxl111sf_ctrl_program_regs(state, init_i2s);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, V6_I2S_NUM_SAMPLES_REG, sample_size);
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+int mxl111sf_disable_i2s_port(struct mxl111sf_state *state)
+{
+	static struct mxl111sf_reg_ctrl_info disable_i2s[] = {
+		{0x15, 0x40, 0x00},
+		{0,    0,    0}
+	};
+
+	mxl_debug("()");
+
+	return mxl111sf_ctrl_program_regs(state, disable_i2s);
+}
+
+int mxl111sf_config_i2s(struct mxl111sf_state *state,
+			u8 msb_start_pos, u8 data_width)
+{
+	int ret;
+	u8 tmp;
+
+	mxl_debug("(0x%02x, 0x%02x)", msb_start_pos, data_width);
+
+	ret = mxl111sf_read_reg(state, V6_I2S_STREAM_START_BIT_REG, &tmp);
+	if (mxl_fail(ret))
+		goto fail;
+
+	tmp &= 0xe0;
+	tmp |= msb_start_pos;
+	ret = mxl111sf_write_reg(state, V6_I2S_STREAM_START_BIT_REG, tmp);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_read_reg(state, V6_I2S_STREAM_END_BIT_REG, &tmp);
+	if (mxl_fail(ret))
+		goto fail;
+
+	tmp &= 0xe0;
+	tmp |= data_width;
+	ret = mxl111sf_write_reg(state, V6_I2S_STREAM_END_BIT_REG, tmp);
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+int mxl111sf_config_spi(struct mxl111sf_state *state, int onoff)
+{
+	u8 val;
+	int ret;
+
+	mxl_debug("(%d)", onoff);
+
+	ret = mxl111sf_write_reg(state, 0x00, 0x02);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_read_reg(state, V8_SPI_MODE_REG, &val);
+	if (mxl_fail(ret))
+		goto fail;
+
+	if (onoff)
+		val |= 0x04;
+	else
+		val &= ~0x04;
+
+	ret = mxl111sf_write_reg(state, V8_SPI_MODE_REG, val);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ret = mxl111sf_write_reg(state, 0x00, 0x00);
+	mxl_fail(ret);
+fail:
+	return ret;
+}
+
+int mxl111sf_idac_config(struct mxl111sf_state *state,
+			 u8 control_mode, u8 current_setting,
+			 u8 current_value, u8 hysteresis_value)
+{
+	int ret;
+	u8 val;
+	/* current value will be set for both automatic & manual IDAC control */
+	val = current_value;
+
+	if (control_mode == IDAC_MANUAL_CONTROL) {
+		/* enable manual control of IDAC */
+		val |= IDAC_MANUAL_CONTROL_BIT_MASK;
+
+		if (current_setting == IDAC_CURRENT_SINKING_ENABLE)
+			/* enable current sinking in manual mode */
+			val |= IDAC_CURRENT_SINKING_BIT_MASK;
+		else
+			/* disable current sinking in manual mode */
+			val &= ~IDAC_CURRENT_SINKING_BIT_MASK;
+	} else {
+		/* disable manual control of IDAC */
+		val &= ~IDAC_MANUAL_CONTROL_BIT_MASK;
+
+		/* set hysteresis value  reg: 0x0B<5:0> */
+		ret = mxl111sf_write_reg(state, V6_IDAC_HYSTERESIS_REG,
+					 (hysteresis_value & 0x3F));
+		mxl_fail(ret);
+	}
+
+	ret = mxl111sf_write_reg(state, V6_IDAC_SETTINGS_REG, val);
+	mxl_fail(ret);
+
+	return ret;
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-phy.h

@@ -0,0 +1,53 @@
+/*
+ *  mxl111sf-phy.h - driver for the MaxLinear MXL111SF
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _DVB_USB_MXL111SF_PHY_H_
+#define _DVB_USB_MXL111SF_PHY_H_
+
+#include "mxl111sf.h"
+
+int mxl1x1sf_soft_reset(struct mxl111sf_state *state);
+int mxl1x1sf_set_device_mode(struct mxl111sf_state *state, int mode);
+int mxl1x1sf_top_master_ctrl(struct mxl111sf_state *state, int onoff);
+int mxl111sf_disable_656_port(struct mxl111sf_state *state);
+int mxl111sf_init_tuner_demod(struct mxl111sf_state *state);
+int mxl111sf_enable_usb_output(struct mxl111sf_state *state);
+int mxl111sf_config_mpeg_in(struct mxl111sf_state *state,
+			    unsigned int parallel_serial,
+			    unsigned int msb_lsb_1st,
+			    unsigned int clock_phase,
+			    unsigned int mpeg_valid_pol,
+			    unsigned int mpeg_sync_pol);
+int mxl111sf_config_i2s(struct mxl111sf_state *state,
+			u8 msb_start_pos, u8 data_width);
+int mxl111sf_init_i2s_port(struct mxl111sf_state *state, u8 sample_size);
+int mxl111sf_disable_i2s_port(struct mxl111sf_state *state);
+int mxl111sf_config_spi(struct mxl111sf_state *state, int onoff);
+int mxl111sf_idac_config(struct mxl111sf_state *state,
+			 u8 control_mode, u8 current_setting,
+			 u8 current_value, u8 hysteresis_value);
+
+#endif /* _DVB_USB_MXL111SF_PHY_H_ */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-reg.h

@@ -0,0 +1,179 @@
+/*
+ *  mxl111sf-reg.h - driver for the MaxLinear MXL111SF
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _DVB_USB_MXL111SF_REG_H_
+#define _DVB_USB_MXL111SF_REG_H_
+
+#define CHIP_ID_REG                  0xFC
+#define TOP_CHIP_REV_ID_REG          0xFA
+
+#define V6_SNR_RB_LSB_REG            0x27
+#define V6_SNR_RB_MSB_REG            0x28
+
+#define V6_N_ACCUMULATE_REG          0x11
+#define V6_RS_AVG_ERRORS_LSB_REG     0x2C
+#define V6_RS_AVG_ERRORS_MSB_REG     0x2D
+
+#define V6_IRQ_STATUS_REG            0x24
+#define  IRQ_MASK_FEC_LOCK       0x10
+
+#define V6_SYNC_LOCK_REG             0x28
+#define SYNC_LOCK_MASK           0x10
+
+#define V6_RS_LOCK_DET_REG           0x28
+#define  RS_LOCK_DET_MASK        0x08
+
+#define V6_INITACQ_NODETECT_REG    0x20
+#define V6_FORCE_NFFT_CPSIZE_REG   0x20
+
+#define V6_CODE_RATE_TPS_REG       0x29
+#define V6_CODE_RATE_TPS_MASK      0x07
+
+
+#define V6_CP_LOCK_DET_REG        0x28
+#define V6_CP_LOCK_DET_MASK       0x04
+
+#define V6_TPS_HIERACHY_REG        0x29
+#define V6_TPS_HIERARCHY_INFO_MASK  0x40
+
+#define V6_MODORDER_TPS_REG        0x2A
+#define V6_PARAM_CONSTELLATION_MASK   0x30
+
+#define V6_MODE_TPS_REG            0x2A
+#define V6_PARAM_FFT_MODE_MASK        0x0C
+
+
+#define V6_CP_TPS_REG             0x29
+#define V6_PARAM_GI_MASK              0x30
+
+#define V6_TPS_LOCK_REG           0x2A
+#define V6_PARAM_TPS_LOCK_MASK        0x40
+
+#define V6_FEC_PER_COUNT_REG      0x2E
+#define V6_FEC_PER_SCALE_REG      0x2B
+#define V6_FEC_PER_SCALE_MASK        0x03
+#define V6_FEC_PER_CLR_REG        0x20
+#define V6_FEC_PER_CLR_MASK          0x01
+
+#define V6_PIN_MUX_MODE_REG       0x1B
+#define V6_ENABLE_PIN_MUX            0x1E
+
+#define V6_I2S_NUM_SAMPLES_REG    0x16
+
+#define V6_MPEG_IN_CLK_INV_REG    0x17
+#define V6_MPEG_IN_CTRL_REG       0x18
+
+#define V6_INVERTED_CLK_PHASE       0x20
+#define V6_MPEG_IN_DATA_PARALLEL    0x01
+#define V6_MPEG_IN_DATA_SERIAL      0x02
+
+#define V6_INVERTED_MPEG_SYNC       0x04
+#define V6_INVERTED_MPEG_VALID      0x08
+
+#define TSIF_INPUT_PARALLEL         0
+#define TSIF_INPUT_SERIAL           1
+#define TSIF_NORMAL                 0
+
+#define V6_MPEG_INOUT_BIT_ORDER_CTRL_REG  0x19
+#define V6_MPEG_SER_MSB_FIRST                0x80
+#define MPEG_SER_MSB_FIRST_ENABLED        0x01
+
+#define V6_656_I2S_BUFF_STATUS_REG   0x2F
+#define V6_656_OVERFLOW_MASK_BIT         0x08
+#define V6_I2S_OVERFLOW_MASK_BIT         0x01
+
+#define V6_I2S_STREAM_START_BIT_REG  0x14
+#define V6_I2S_STREAM_END_BIT_REG    0x15
+#define I2S_RIGHT_JUSTIFIED     0
+#define I2S_LEFT_JUSTIFIED      1
+#define I2S_DATA_FORMAT         2
+
+#define V6_TUNER_LOOP_THRU_CONTROL_REG  0x09
+#define V6_ENABLE_LOOP_THRU               0x01
+
+#define TOTAL_NUM_IF_OUTPUT_FREQ       16
+
+#define TUNER_NORMAL_IF_SPECTRUM       0x0
+#define TUNER_INVERT_IF_SPECTRUM       0x10
+
+#define V6_TUNER_IF_SEL_REG              0x06
+#define V6_TUNER_IF_FCW_REG              0x3C
+#define V6_TUNER_IF_FCW_BYP_REG          0x3D
+#define V6_RF_LOCK_STATUS_REG            0x23
+
+#define NUM_DIG_TV_CHANNEL     1000
+
+#define V6_DIG_CLK_FREQ_SEL_REG  0x07
+#define V6_REF_SYNTH_INT_REG     0x5C
+#define V6_REF_SYNTH_REMAIN_REG  0x58
+#define V6_DIG_RFREFSELECT_REG   0x32
+#define V6_XTAL_CLK_OUT_GAIN_REG   0x31
+#define V6_TUNER_LOOP_THRU_CTRL_REG      0x09
+#define V6_DIG_XTAL_ENABLE_REG  0x06
+#define V6_DIG_XTAL_BIAS_REG  0x66
+#define V6_XTAL_CAP_REG    0x08
+
+#define V6_GPO_CTRL_REG     0x18
+#define MXL_GPO_0           0x00
+#define MXL_GPO_1           0x01
+#define V6_GPO_0_MASK       0x10
+#define V6_GPO_1_MASK       0x20
+
+#define V6_111SF_GPO_CTRL_REG     0x19
+#define MXL_111SF_GPO_1               0x00
+#define MXL_111SF_GPO_2               0x01
+#define MXL_111SF_GPO_3               0x02
+#define MXL_111SF_GPO_4               0x03
+#define MXL_111SF_GPO_5               0x04
+#define MXL_111SF_GPO_6               0x05
+#define MXL_111SF_GPO_7               0x06
+
+#define MXL_111SF_GPO_0_MASK          0x01
+#define MXL_111SF_GPO_1_MASK          0x02
+#define MXL_111SF_GPO_2_MASK          0x04
+#define MXL_111SF_GPO_3_MASK          0x08
+#define MXL_111SF_GPO_4_MASK          0x10
+#define MXL_111SF_GPO_5_MASK          0x20
+#define MXL_111SF_GPO_6_MASK          0x40
+
+#define V6_ATSC_CONFIG_REG  0x0A
+
+#define MXL_MODE_REG    0x03
+#define START_TUNE_REG  0x1C
+
+#define V6_IDAC_HYSTERESIS_REG    0x0B
+#define V6_IDAC_SETTINGS_REG      0x0C
+#define IDAC_MANUAL_CONTROL             1
+#define IDAC_CURRENT_SINKING_ENABLE     1
+#define IDAC_MANUAL_CONTROL_BIT_MASK      0x80
+#define IDAC_CURRENT_SINKING_BIT_MASK     0x40
+
+#define V8_SPI_MODE_REG  0xE9
+
+#define V6_DIG_RF_PWR_LSB_REG  0x46
+#define V6_DIG_RF_PWR_MSB_REG  0x47
+
+#endif /* _DVB_USB_MXL111SF_REG_H_ */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-tuner.c

@@ -0,0 +1,525 @@
+/*
+ *  mxl111sf-tuner.c - driver for the MaxLinear MXL111SF CMOS tuner
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "mxl111sf-tuner.h"
+#include "mxl111sf-phy.h"
+#include "mxl111sf-reg.h"
+
+/* debug */
+static int mxl111sf_tuner_debug;
+module_param_named(debug, mxl111sf_tuner_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able)).");
+
+#define mxl_dbg(fmt, arg...) \
+	if (mxl111sf_tuner_debug) \
+		mxl_printk(KERN_DEBUG, fmt, ##arg)
+
+/* ------------------------------------------------------------------------ */
+
+struct mxl111sf_tuner_state {
+	struct mxl111sf_state *mxl_state;
+
+	struct mxl111sf_tuner_config *cfg;
+
+	enum mxl_if_freq if_freq;
+
+	u32 frequency;
+	u32 bandwidth;
+};
+
+static int mxl111sf_tuner_read_reg(struct mxl111sf_tuner_state *state,
+				   u8 addr, u8 *data)
+{
+	return (state->cfg->read_reg) ?
+		state->cfg->read_reg(state->mxl_state, addr, data) :
+		-EINVAL;
+}
+
+static int mxl111sf_tuner_write_reg(struct mxl111sf_tuner_state *state,
+				    u8 addr, u8 data)
+{
+	return (state->cfg->write_reg) ?
+		state->cfg->write_reg(state->mxl_state, addr, data) :
+		-EINVAL;
+}
+
+static int mxl111sf_tuner_program_regs(struct mxl111sf_tuner_state *state,
+			       struct mxl111sf_reg_ctrl_info *ctrl_reg_info)
+{
+	return (state->cfg->program_regs) ?
+		state->cfg->program_regs(state->mxl_state, ctrl_reg_info) :
+		-EINVAL;
+}
+
+static int mxl1x1sf_tuner_top_master_ctrl(struct mxl111sf_tuner_state *state,
+					  int onoff)
+{
+	return (state->cfg->top_master_ctrl) ?
+		state->cfg->top_master_ctrl(state->mxl_state, onoff) :
+		-EINVAL;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static struct mxl111sf_reg_ctrl_info mxl_phy_tune_rf[] = {
+	{0x1d, 0x7f, 0x00}, /* channel bandwidth section 1/2/3,
+			       DIG_MODEINDEX, _A, _CSF, */
+	{0x1e, 0xff, 0x00}, /* channel frequency (lo and fractional) */
+	{0x1f, 0xff, 0x00}, /* channel frequency (hi for integer portion) */
+	{0,    0,    0}
+};
+
+/* ------------------------------------------------------------------------ */
+
+static struct mxl111sf_reg_ctrl_info *mxl111sf_calc_phy_tune_regs(u32 freq,
+								  u8 bw)
+{
+	u8 filt_bw;
+
+	/* set channel bandwidth */
+	switch (bw) {
+	case 0: /* ATSC */
+		filt_bw = 25;
+		break;
+	case 1: /* QAM */
+		filt_bw = 69;
+		break;
+	case 6:
+		filt_bw = 21;
+		break;
+	case 7:
+		filt_bw = 42;
+		break;
+	case 8:
+		filt_bw = 63;
+		break;
+	default:
+		pr_err("%s: invalid bandwidth setting!", __func__);
+		return NULL;
+	}
+
+	/* calculate RF channel */
+	freq /= 1000000;
+
+	freq *= 64;
+#if 0
+	/* do round */
+	freq += 0.5;
+#endif
+	/* set bandwidth */
+	mxl_phy_tune_rf[0].data = filt_bw;
+
+	/* set RF */
+	mxl_phy_tune_rf[1].data = (freq & 0xff);
+	mxl_phy_tune_rf[2].data = (freq >> 8) & 0xff;
+
+	/* start tune */
+	return mxl_phy_tune_rf;
+}
+
+static int mxl1x1sf_tuner_set_if_output_freq(struct mxl111sf_tuner_state *state)
+{
+	int ret;
+	u8 ctrl;
+#if 0
+	u16 iffcw;
+	u32 if_freq;
+#endif
+	mxl_dbg("(IF polarity = %d, IF freq = 0x%02x)",
+		state->cfg->invert_spectrum, state->cfg->if_freq);
+
+	/* set IF polarity */
+	ctrl = state->cfg->invert_spectrum;
+
+	ctrl |= state->cfg->if_freq;
+
+	ret = mxl111sf_tuner_write_reg(state, V6_TUNER_IF_SEL_REG, ctrl);
+	if (mxl_fail(ret))
+		goto fail;
+
+#if 0
+	if_freq /= 1000000;
+
+	/* do round */
+	if_freq += 0.5;
+
+	if (MXL_IF_LO == state->cfg->if_freq) {
+		ctrl = 0x08;
+		iffcw = (u16)(if_freq / (108 * 4096));
+	} else if (MXL_IF_HI == state->cfg->if_freq) {
+		ctrl = 0x08;
+		iffcw = (u16)(if_freq / (216 * 4096));
+	} else {
+		ctrl = 0;
+		iffcw = 0;
+	}
+
+	ctrl |= (iffcw >> 8);
+#endif
+	ret = mxl111sf_tuner_read_reg(state, V6_TUNER_IF_FCW_BYP_REG, &ctrl);
+	if (mxl_fail(ret))
+		goto fail;
+
+	ctrl &= 0xf0;
+	ctrl |= 0x90;
+
+	ret = mxl111sf_tuner_write_reg(state, V6_TUNER_IF_FCW_BYP_REG, ctrl);
+	if (mxl_fail(ret))
+		goto fail;
+
+#if 0
+	ctrl = iffcw & 0x00ff;
+#endif
+	ret = mxl111sf_tuner_write_reg(state, V6_TUNER_IF_FCW_REG, ctrl);
+	if (mxl_fail(ret))
+		goto fail;
+
+	state->if_freq = state->cfg->if_freq;
+fail:
+	return ret;
+}
+
+static int mxl1x1sf_tune_rf(struct dvb_frontend *fe, u32 freq, u8 bw)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	static struct mxl111sf_reg_ctrl_info *reg_ctrl_array;
+	int ret;
+	u8 mxl_mode;
+
+	mxl_dbg("(freq = %d, bw = 0x%x)", freq, bw);
+
+	/* stop tune */
+	ret = mxl111sf_tuner_write_reg(state, START_TUNE_REG, 0);
+	if (mxl_fail(ret))
+		goto fail;
+
+	/* check device mode */
+	ret = mxl111sf_tuner_read_reg(state, MXL_MODE_REG, &mxl_mode);
+	if (mxl_fail(ret))
+		goto fail;
+
+	/* Fill out registers for channel tune */
+	reg_ctrl_array = mxl111sf_calc_phy_tune_regs(freq, bw);
+	if (!reg_ctrl_array)
+		return -EINVAL;
+
+	ret = mxl111sf_tuner_program_regs(state, reg_ctrl_array);
+	if (mxl_fail(ret))
+		goto fail;
+
+	if ((mxl_mode & MXL_DEV_MODE_MASK) == MXL_TUNER_MODE) {
+		/* IF tuner mode only */
+		mxl1x1sf_tuner_top_master_ctrl(state, 0);
+		mxl1x1sf_tuner_top_master_ctrl(state, 1);
+		mxl1x1sf_tuner_set_if_output_freq(state);
+	}
+
+	ret = mxl111sf_tuner_write_reg(state, START_TUNE_REG, 1);
+	if (mxl_fail(ret))
+		goto fail;
+
+	if (state->cfg->ant_hunt)
+		state->cfg->ant_hunt(fe);
+fail:
+	return ret;
+}
+
+static int mxl1x1sf_tuner_get_lock_status(struct mxl111sf_tuner_state *state,
+					  int *rf_synth_lock,
+					  int *ref_synth_lock)
+{
+	int ret;
+	u8 data;
+
+	*rf_synth_lock = 0;
+	*ref_synth_lock = 0;
+
+	ret = mxl111sf_tuner_read_reg(state, V6_RF_LOCK_STATUS_REG, &data);
+	if (mxl_fail(ret))
+		goto fail;
+
+	*ref_synth_lock = ((data & 0x03) == 0x03) ? 1 : 0;
+	*rf_synth_lock  = ((data & 0x0c) == 0x0c) ? 1 : 0;
+fail:
+	return ret;
+}
+
+#if 0
+static int mxl1x1sf_tuner_loop_thru_ctrl(struct mxl111sf_tuner_state *state,
+					 int onoff)
+{
+	return mxl111sf_tuner_write_reg(state, V6_TUNER_LOOP_THRU_CTRL_REG,
+					onoff ? 1 : 0);
+}
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+static int mxl111sf_tuner_set_params(struct dvb_frontend *fe)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	u32 delsys  = c->delivery_system;
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	int ret;
+	u8 bw;
+
+	mxl_dbg("()");
+
+	switch (delsys) {
+	case SYS_ATSC:
+	case SYS_ATSCMH:
+		bw = 0; /* ATSC */
+		break;
+	case SYS_DVBC_ANNEX_B:
+		bw = 1; /* US CABLE */
+		break;
+	case SYS_DVBT:
+		switch (c->bandwidth_hz) {
+		case 6000000:
+			bw = 6;
+			break;
+		case 7000000:
+			bw = 7;
+			break;
+		case 8000000:
+			bw = 8;
+			break;
+		default:
+			pr_err("%s: bandwidth not set!", __func__);
+			return -EINVAL;
+		}
+		break;
+	default:
+		pr_err("%s: modulation type not supported!", __func__);
+		return -EINVAL;
+	}
+	ret = mxl1x1sf_tune_rf(fe, c->frequency, bw);
+	if (mxl_fail(ret))
+		goto fail;
+
+	state->frequency = c->frequency;
+	state->bandwidth = c->bandwidth_hz;
+fail:
+	return ret;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#if 0
+static int mxl111sf_tuner_init(struct dvb_frontend *fe)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	int ret;
+
+	/* wake from standby handled by usb driver */
+
+	return ret;
+}
+
+static int mxl111sf_tuner_sleep(struct dvb_frontend *fe)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	int ret;
+
+	/* enter standby mode handled by usb driver */
+
+	return ret;
+}
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+static int mxl111sf_tuner_get_status(struct dvb_frontend *fe, u32 *status)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	int rf_locked, ref_locked, ret;
+
+	*status = 0;
+
+	ret = mxl1x1sf_tuner_get_lock_status(state, &rf_locked, &ref_locked);
+	if (mxl_fail(ret))
+		goto fail;
+	mxl_info("%s%s", rf_locked ? "rf locked " : "",
+		 ref_locked ? "ref locked" : "");
+
+	if ((rf_locked) || (ref_locked))
+		*status |= TUNER_STATUS_LOCKED;
+fail:
+	return ret;
+}
+
+static int mxl111sf_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	u8 val1, val2;
+	int ret;
+
+	*strength = 0;
+
+	ret = mxl111sf_tuner_write_reg(state, 0x00, 0x02);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_tuner_read_reg(state, V6_DIG_RF_PWR_LSB_REG, &val1);
+	if (mxl_fail(ret))
+		goto fail;
+	ret = mxl111sf_tuner_read_reg(state, V6_DIG_RF_PWR_MSB_REG, &val2);
+	if (mxl_fail(ret))
+		goto fail;
+
+	*strength = val1 | ((val2 & 0x07) << 8);
+fail:
+	ret = mxl111sf_tuner_write_reg(state, 0x00, 0x00);
+	mxl_fail(ret);
+
+	return ret;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static int mxl111sf_tuner_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	*frequency = state->frequency;
+	return 0;
+}
+
+static int mxl111sf_tuner_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	*bandwidth = state->bandwidth;
+	return 0;
+}
+
+static int mxl111sf_tuner_get_if_frequency(struct dvb_frontend *fe,
+					   u32 *frequency)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+
+	*frequency = 0;
+
+	switch (state->if_freq) {
+	case MXL_IF_4_0:   /* 4.0   MHz */
+		*frequency = 4000000;
+		break;
+	case MXL_IF_4_5:   /* 4.5   MHz */
+		*frequency = 4500000;
+		break;
+	case MXL_IF_4_57:  /* 4.57  MHz */
+		*frequency = 4570000;
+		break;
+	case MXL_IF_5_0:   /* 5.0   MHz */
+		*frequency = 5000000;
+		break;
+	case MXL_IF_5_38:  /* 5.38  MHz */
+		*frequency = 5380000;
+		break;
+	case MXL_IF_6_0:   /* 6.0   MHz */
+		*frequency = 6000000;
+		break;
+	case MXL_IF_6_28:  /* 6.28  MHz */
+		*frequency = 6280000;
+		break;
+	case MXL_IF_7_2:   /* 7.2   MHz */
+		*frequency = 7200000;
+		break;
+	case MXL_IF_35_25: /* 35.25 MHz */
+		*frequency = 35250000;
+		break;
+	case MXL_IF_36:    /* 36    MHz */
+		*frequency = 36000000;
+		break;
+	case MXL_IF_36_15: /* 36.15 MHz */
+		*frequency = 36150000;
+		break;
+	case MXL_IF_44:    /* 44    MHz */
+		*frequency = 44000000;
+		break;
+	}
+	return 0;
+}
+
+static int mxl111sf_tuner_release(struct dvb_frontend *fe)
+{
+	struct mxl111sf_tuner_state *state = fe->tuner_priv;
+	mxl_dbg("()");
+	kfree(state);
+	fe->tuner_priv = NULL;
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static struct dvb_tuner_ops mxl111sf_tuner_tuner_ops = {
+	.info = {
+		.name = "MaxLinear MxL111SF",
+#if 0
+		.frequency_min  = ,
+		.frequency_max  = ,
+		.frequency_step = ,
+#endif
+	},
+#if 0
+	.init              = mxl111sf_tuner_init,
+	.sleep             = mxl111sf_tuner_sleep,
+#endif
+	.set_params        = mxl111sf_tuner_set_params,
+	.get_status        = mxl111sf_tuner_get_status,
+	.get_rf_strength   = mxl111sf_get_rf_strength,
+	.get_frequency     = mxl111sf_tuner_get_frequency,
+	.get_bandwidth     = mxl111sf_tuner_get_bandwidth,
+	.get_if_frequency  = mxl111sf_tuner_get_if_frequency,
+	.release           = mxl111sf_tuner_release,
+};
+
+struct dvb_frontend *mxl111sf_tuner_attach(struct dvb_frontend *fe,
+					   struct mxl111sf_state *mxl_state,
+					   struct mxl111sf_tuner_config *cfg)
+{
+	struct mxl111sf_tuner_state *state = NULL;
+
+	mxl_dbg("()");
+
+	state = kzalloc(sizeof(struct mxl111sf_tuner_state), GFP_KERNEL);
+	if (state == NULL)
+		return NULL;
+
+	state->mxl_state = mxl_state;
+	state->cfg = cfg;
+
+	memcpy(&fe->ops.tuner_ops, &mxl111sf_tuner_tuner_ops,
+	       sizeof(struct dvb_tuner_ops));
+
+	fe->tuner_priv = state;
+	return fe;
+}
+EXPORT_SYMBOL_GPL(mxl111sf_tuner_attach);
+
+MODULE_DESCRIPTION("MaxLinear MxL111SF CMOS tuner driver");
+MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.1");
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/mxl111sf-tuner.h

@@ -0,0 +1,88 @@
+/*
+ *  mxl111sf-tuner.h - driver for the MaxLinear MXL111SF CMOS tuner
+ *
+ *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __MXL111SF_TUNER_H__
+#define __MXL111SF_TUNER_H__
+
+#include <linux/kconfig.h>
+#include "dvb_frontend.h"
+#include "mxl111sf.h"
+
+enum mxl_if_freq {
+#if 0
+	MXL_IF_LO    = 0x00, /* other IF < 9MHz */
+#endif
+	MXL_IF_4_0   = 0x01, /* 4.0   MHz */
+	MXL_IF_4_5   = 0x02, /* 4.5   MHz */
+	MXL_IF_4_57  = 0x03, /* 4.57  MHz */
+	MXL_IF_5_0   = 0x04, /* 5.0   MHz */
+	MXL_IF_5_38  = 0x05, /* 5.38  MHz */
+	MXL_IF_6_0   = 0x06, /* 6.0   MHz */
+	MXL_IF_6_28  = 0x07, /* 6.28  MHz */
+	MXL_IF_7_2   = 0x08, /* 7.2   MHz */
+	MXL_IF_35_25 = 0x09, /* 35.25 MHz */
+	MXL_IF_36    = 0x0a, /* 36    MHz */
+	MXL_IF_36_15 = 0x0b, /* 36.15 MHz */
+	MXL_IF_44    = 0x0c, /* 44    MHz */
+#if 0
+	MXL_IF_HI    = 0x0f, /* other IF > 35 MHz and < 45 MHz */
+#endif
+};
+
+struct mxl111sf_tuner_config {
+	enum mxl_if_freq if_freq;
+	unsigned int invert_spectrum:1;
+
+	int (*read_reg)(struct mxl111sf_state *state, u8 addr, u8 *data);
+	int (*write_reg)(struct mxl111sf_state *state, u8 addr, u8 data);
+	int (*program_regs)(struct mxl111sf_state *state,
+			    struct mxl111sf_reg_ctrl_info *ctrl_reg_info);
+	int (*top_master_ctrl)(struct mxl111sf_state *state, int onoff);
+	int (*ant_hunt)(struct dvb_frontend *fe);
+};
+
+/* ------------------------------------------------------------------------ */
+
+#if IS_ENABLED(CONFIG_DVB_USB_MXL111SF)
+extern
+struct dvb_frontend *mxl111sf_tuner_attach(struct dvb_frontend *fe,
+					   struct mxl111sf_state *mxl_state,
+					   struct mxl111sf_tuner_config *cfg);
+#else
+static inline
+struct dvb_frontend *mxl111sf_tuner_attach(struct dvb_frontend *fe,
+					   struct mxl111sf_state *mxl_state,
+					   struct mxl111sf_tuner_config *cfg)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif /* __MXL111SF_TUNER_H__ */
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */
+

drivers/media/usb/dvb-usb-v2/mxl111sf.h

@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2010-2014 Michael Krufky (mkrufky@linuxtv.org)
+ *
+ *   This program is free software; you can redistribute it and/or modify it
+ *   under the terms of the GNU General Public License as published by the Free
+ *   Software Foundation, version 2.
+ *
+ * see Documentation/dvb/README.dvb-usb for more information
+ */
+
+#ifndef _DVB_USB_MXL111SF_H_
+#define _DVB_USB_MXL111SF_H_
+
+#ifdef DVB_USB_LOG_PREFIX
+#undef DVB_USB_LOG_PREFIX
+#endif
+#define DVB_USB_LOG_PREFIX "mxl111sf"
+#include "dvb_usb.h"
+#include <media/tveeprom.h>
+
+#define MXL_EP1_REG_READ     1
+#define MXL_EP2_REG_WRITE    2
+#define MXL_EP3_INTERRUPT    3
+#define MXL_EP4_MPEG2        4
+#define MXL_EP5_I2S          5
+#define MXL_EP6_656          6
+#define MXL_EP6_MPEG2        6
+
+#ifdef USING_ENUM_mxl111sf_current_mode
+enum mxl111sf_current_mode {
+	mxl_mode_dvbt = MXL_EP4_MPEG2,
+	mxl_mode_mh   = MXL_EP5_I2S,
+	mxl_mode_atsc = MXL_EP6_MPEG2,
+};
+#endif
+
+enum mxl111sf_gpio_port_expander {
+	mxl111sf_gpio_hw,
+	mxl111sf_PCA9534,
+};
+
+struct mxl111sf_adap_state {
+	int alt_mode;
+	int gpio_mode;
+	int device_mode;
+	int ep6_clockphase;
+	int (*fe_init)(struct dvb_frontend *);
+	int (*fe_sleep)(struct dvb_frontend *);
+};
+
+struct mxl111sf_state {
+	struct dvb_usb_device *d;
+
+	enum mxl111sf_gpio_port_expander gpio_port_expander;
+	u8 port_expander_addr;
+
+	u8 chip_id;
+	u8 chip_ver;
+#define MXL111SF_V6     1
+#define MXL111SF_V8_100 2
+#define MXL111SF_V8_200 3
+	u8 chip_rev;
+
+#ifdef USING_ENUM_mxl111sf_current_mode
+	enum mxl111sf_current_mode current_mode;
+#endif
+
+#define MXL_TUNER_MODE         0
+#define MXL_SOC_MODE           1
+#define MXL_DEV_MODE_MASK      0x01
+#if 1
+	int device_mode;
+#endif
+	/* use usb alt setting 1 for EP4 ISOC transfer (dvb-t),
+				     EP5 BULK transfer (atsc-mh),
+				     EP6 BULK transfer (atsc/qam),
+	   use usb alt setting 2 for EP4 BULK transfer (dvb-t),
+				     EP5 ISOC transfer (atsc-mh),
+				     EP6 ISOC transfer (atsc/qam),
+	 */
+	int alt_mode;
+	int gpio_mode;
+	struct tveeprom tv;
+
+	struct mutex fe_lock;
+	u8 num_frontends;
+	struct mxl111sf_adap_state adap_state[3];
+};
+
+int mxl111sf_read_reg(struct mxl111sf_state *state, u8 addr, u8 *data);
+int mxl111sf_write_reg(struct mxl111sf_state *state, u8 addr, u8 data);
+
+struct mxl111sf_reg_ctrl_info {
+	u8 addr;
+	u8 mask;
+	u8 data;
+};
+
+int mxl111sf_write_reg_mask(struct mxl111sf_state *state,
+			    u8 addr, u8 mask, u8 data);
+int mxl111sf_ctrl_program_regs(struct mxl111sf_state *state,
+			       struct mxl111sf_reg_ctrl_info *ctrl_reg_info);
+
+/* needed for hardware i2c functions in mxl111sf-i2c.c:
+ * mxl111sf_i2c_send_data / mxl111sf_i2c_get_data */
+int mxl111sf_ctrl_msg(struct dvb_usb_device *d,
+		      u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen);
+
+#define mxl_printk(kern, fmt, arg...) \
+	printk(kern "%s: " fmt "\n", __func__, ##arg)
+
+#define mxl_info(fmt, arg...) \
+	mxl_printk(KERN_INFO, fmt, ##arg)
+
+extern int dvb_usb_mxl111sf_debug;
+#define mxl_debug(fmt, arg...) \
+	if (dvb_usb_mxl111sf_debug) \
+		mxl_printk(KERN_DEBUG, fmt, ##arg)
+
+#define MXL_I2C_DBG 0x04
+#define MXL_ADV_DBG 0x10
+#define mxl_debug_adv(fmt, arg...) \
+	if (dvb_usb_mxl111sf_debug & MXL_ADV_DBG) \
+		mxl_printk(KERN_DEBUG, fmt, ##arg)
+
+#define mxl_i2c(fmt, arg...) \
+	if (dvb_usb_mxl111sf_debug & MXL_I2C_DBG) \
+		mxl_printk(KERN_DEBUG, fmt, ##arg)
+
+#define mxl_i2c_adv(fmt, arg...) \
+	if ((dvb_usb_mxl111sf_debug & (MXL_I2C_DBG | MXL_ADV_DBG)) == \
+		(MXL_I2C_DBG | MXL_ADV_DBG)) \
+			mxl_printk(KERN_DEBUG, fmt, ##arg)
+
+/* The following allows the mxl_fail() macro defined below to work
+ * in externel modules, such as mxl111sf-tuner.ko, even though
+ * dvb_usb_mxl111sf_debug is not defined within those modules */
+#if (defined(__MXL111SF_TUNER_H__)) || (defined(__MXL111SF_DEMOD_H__))
+#define MXL_ADV_DEBUG_ENABLED MXL_ADV_DBG
+#else
+#define MXL_ADV_DEBUG_ENABLED dvb_usb_mxl111sf_debug
+#endif
+
+#define mxl_fail(ret)							\
+({									\
+	int __ret;							\
+	__ret = (ret < 0);						\
+	if ((__ret) && (MXL_ADV_DEBUG_ENABLED & MXL_ADV_DBG))		\
+		mxl_printk(KERN_ERR, "error %d on line %d",		\
+			   ret, __LINE__);				\
+	__ret;								\
+})
+
+#endif /* _DVB_USB_MXL111SF_H_ */
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */

drivers/media/usb/dvb-usb-v2/rtl28xxu.h

@@ -0,0 +1,255 @@
+/*
+ * Realtek RTL28xxU DVB USB driver
+ *
+ * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
+ * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License along
+ *    with this program; if not, write to the Free Software Foundation, Inc.,
+ *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef RTL28XXU_H
+#define RTL28XXU_H
+
+#include "dvb_usb.h"
+
+/*
+ * USB commands
+ * (usb_control_msg() index parameter)
+ */
+
+#define DEMOD            0x0000
+#define USB              0x0100
+#define SYS              0x0200
+#define I2C              0x0300
+#define I2C_DA           0x0600
+
+#define CMD_WR_FLAG      0x0010
+#define CMD_DEMOD_RD     0x0000
+#define CMD_DEMOD_WR     0x0010
+#define CMD_USB_RD       0x0100
+#define CMD_USB_WR       0x0110
+#define CMD_SYS_RD       0x0200
+#define CMD_IR_RD        0x0201
+#define CMD_IR_WR        0x0211
+#define CMD_SYS_WR       0x0210
+#define CMD_I2C_RD       0x0300
+#define CMD_I2C_WR       0x0310
+#define CMD_I2C_DA_RD    0x0600
+#define CMD_I2C_DA_WR    0x0610
+
+
+struct rtl28xxu_priv {
+	u8 chip_id;
+	u8 tuner;
+	char *tuner_name;
+	u8 page; /* integrated demod active register page */
+	struct i2c_adapter *demod_i2c_adapter;
+	bool rc_active;
+	struct i2c_client *client;
+};
+
+enum rtl28xxu_chip_id {
+	CHIP_ID_NONE,
+	CHIP_ID_RTL2831U,
+	CHIP_ID_RTL2832U,
+};
+
+/* XXX: Hack. This must be keep sync with rtl2832 demod driver. */
+enum rtl28xxu_tuner {
+	TUNER_NONE,
+
+	TUNER_RTL2830_QT1010          = 0x10,
+	TUNER_RTL2830_MT2060,
+	TUNER_RTL2830_MXL5005S,
+
+	TUNER_RTL2832_MT2266          = 0x20,
+	TUNER_RTL2832_FC2580,
+	TUNER_RTL2832_MT2063,
+	TUNER_RTL2832_MAX3543,
+	TUNER_RTL2832_TUA9001,
+	TUNER_RTL2832_MXL5007T,
+	TUNER_RTL2832_FC0012,
+	TUNER_RTL2832_E4000,
+	TUNER_RTL2832_TDA18272,
+	TUNER_RTL2832_FC0013,
+	TUNER_RTL2832_R820T,
+	TUNER_RTL2832_R828D,
+};
+
+struct rtl28xxu_req {
+	u16 value;
+	u16 index;
+	u16 size;
+	u8 *data;
+};
+
+struct rtl28xxu_reg_val {
+	u16 reg;
+	u8 val;
+};
+
+struct rtl28xxu_reg_val_mask {
+	u16 reg;
+	u8 val;
+	u8 mask;
+};
+
+/*
+ * memory map
+ *
+ * 0x0000 DEMOD : demodulator
+ * 0x2000 USB   : SIE, USB endpoint, debug, DMA
+ * 0x3000 SYS   : system
+ * 0xfc00 RC    : remote controller (not RTL2831U)
+ */
+
+/*
+ * USB registers
+ */
+/* SIE Control Registers */
+#define USB_SYSCTL         0x2000 /* USB system control */
+#define USB_SYSCTL_0       0x2000 /* USB system control */
+#define USB_SYSCTL_1       0x2001 /* USB system control */
+#define USB_SYSCTL_2       0x2002 /* USB system control */
+#define USB_SYSCTL_3       0x2003 /* USB system control */
+#define USB_IRQSTAT        0x2008 /* SIE interrupt status */
+#define USB_IRQEN          0x200C /* SIE interrupt enable */
+#define USB_CTRL           0x2010 /* USB control */
+#define USB_STAT           0x2014 /* USB status */
+#define USB_DEVADDR        0x2018 /* USB device address */
+#define USB_TEST           0x201C /* USB test mode */
+#define USB_FRAME_NUMBER   0x2020 /* frame number */
+#define USB_FIFO_ADDR      0x2028 /* address of SIE FIFO RAM */
+#define USB_FIFO_CMD       0x202A /* SIE FIFO RAM access command */
+#define USB_FIFO_DATA      0x2030 /* SIE FIFO RAM data */
+/* Endpoint Registers */
+#define EP0_SETUPA         0x20F8 /* EP 0 setup packet lower byte */
+#define EP0_SETUPB         0x20FC /* EP 0 setup packet higher byte */
+#define USB_EP0_CFG        0x2104 /* EP 0 configure */
+#define USB_EP0_CTL        0x2108 /* EP 0 control */
+#define USB_EP0_STAT       0x210C /* EP 0 status */
+#define USB_EP0_IRQSTAT    0x2110 /* EP 0 interrupt status */
+#define USB_EP0_IRQEN      0x2114 /* EP 0 interrupt enable */
+#define USB_EP0_MAXPKT     0x2118 /* EP 0 max packet size */
+#define USB_EP0_BC         0x2120 /* EP 0 FIFO byte counter */
+#define USB_EPA_CFG        0x2144 /* EP A configure */
+#define USB_EPA_CFG_0      0x2144 /* EP A configure */
+#define USB_EPA_CFG_1      0x2145 /* EP A configure */
+#define USB_EPA_CFG_2      0x2146 /* EP A configure */
+#define USB_EPA_CFG_3      0x2147 /* EP A configure */
+#define USB_EPA_CTL        0x2148 /* EP A control */
+#define USB_EPA_CTL_0      0x2148 /* EP A control */
+#define USB_EPA_CTL_1      0x2149 /* EP A control */
+#define USB_EPA_CTL_2      0x214A /* EP A control */
+#define USB_EPA_CTL_3      0x214B /* EP A control */
+#define USB_EPA_STAT       0x214C /* EP A status */
+#define USB_EPA_IRQSTAT    0x2150 /* EP A interrupt status */
+#define USB_EPA_IRQEN      0x2154 /* EP A interrupt enable */
+#define USB_EPA_MAXPKT     0x2158 /* EP A max packet size */
+#define USB_EPA_MAXPKT_0   0x2158 /* EP A max packet size */
+#define USB_EPA_MAXPKT_1   0x2159 /* EP A max packet size */
+#define USB_EPA_MAXPKT_2   0x215A /* EP A max packet size */
+#define USB_EPA_MAXPKT_3   0x215B /* EP A max packet size */
+#define USB_EPA_FIFO_CFG   0x2160 /* EP A FIFO configure */
+#define USB_EPA_FIFO_CFG_0 0x2160 /* EP A FIFO configure */
+#define USB_EPA_FIFO_CFG_1 0x2161 /* EP A FIFO configure */
+#define USB_EPA_FIFO_CFG_2 0x2162 /* EP A FIFO configure */
+#define USB_EPA_FIFO_CFG_3 0x2163 /* EP A FIFO configure */
+/* Debug Registers */
+#define USB_PHYTSTDIS      0x2F04 /* PHY test disable */
+#define USB_TOUT_VAL       0x2F08 /* USB time-out time */
+#define USB_VDRCTRL        0x2F10 /* UTMI vendor signal control */
+#define USB_VSTAIN         0x2F14 /* UTMI vendor signal status in */
+#define USB_VLOADM         0x2F18 /* UTMI load vendor signal status in */
+#define USB_VSTAOUT        0x2F1C /* UTMI vendor signal status out */
+#define USB_UTMI_TST       0x2F80 /* UTMI test */
+#define USB_UTMI_STATUS    0x2F84 /* UTMI status */
+#define USB_TSTCTL         0x2F88 /* test control */
+#define USB_TSTCTL2        0x2F8C /* test control 2 */
+#define USB_PID_FORCE      0x2F90 /* force PID */
+#define USB_PKTERR_CNT     0x2F94 /* packet error counter */
+#define USB_RXERR_CNT      0x2F98 /* RX error counter */
+#define USB_MEM_BIST       0x2F9C /* MEM BIST test */
+#define USB_SLBBIST        0x2FA0 /* self-loop-back BIST */
+#define USB_CNTTEST        0x2FA4 /* counter test */
+#define USB_PHYTST         0x2FC0 /* USB PHY test */
+#define USB_DBGIDX         0x2FF0 /* select individual block debug signal */
+#define USB_DBGMUX         0x2FF4 /* debug signal module mux */
+
+/*
+ * SYS registers
+ */
+/* demod control registers */
+#define SYS_SYS0           0x3000 /* include DEMOD_CTL, GPO, GPI, GPOE */
+#define SYS_DEMOD_CTL      0x3000 /* control register for DVB-T demodulator */
+/* GPIO registers */
+#define SYS_GPIO_OUT_VAL   0x3001 /* output value of GPIO */
+#define SYS_GPIO_IN_VAL    0x3002 /* input value of GPIO */
+#define SYS_GPIO_OUT_EN    0x3003 /* output enable of GPIO */
+#define SYS_SYS1           0x3004 /* include GPD, SYSINTE, SYSINTS, GP_CFG0 */
+#define SYS_GPIO_DIR       0x3004 /* direction control for GPIO */
+#define SYS_SYSINTE        0x3005 /* system interrupt enable */
+#define SYS_SYSINTS        0x3006 /* system interrupt status */
+#define SYS_GPIO_CFG0      0x3007 /* PAD configuration for GPIO0-GPIO3 */
+#define SYS_SYS2           0x3008 /* include GP_CFG1 and 3 reserved bytes */
+#define SYS_GPIO_CFG1      0x3008 /* PAD configuration for GPIO4 */
+#define SYS_DEMOD_CTL1     0x300B
+
+/* IrDA registers */
+#define SYS_IRRC_PSR       0x3020 /* IR protocol selection */
+#define SYS_IRRC_PER       0x3024 /* IR protocol extension */
+#define SYS_IRRC_SF        0x3028 /* IR sampling frequency */
+#define SYS_IRRC_DPIR      0x302C /* IR data package interval */
+#define SYS_IRRC_CR        0x3030 /* IR control */
+#define SYS_IRRC_RP        0x3034 /* IR read port */
+#define SYS_IRRC_SR        0x3038 /* IR status */
+/* I2C master registers */
+#define SYS_I2CCR          0x3040 /* I2C clock */
+#define SYS_I2CMCR         0x3044 /* I2C master control */
+#define SYS_I2CMSTR        0x3048 /* I2C master SCL timing */
+#define SYS_I2CMSR         0x304C /* I2C master status */
+#define SYS_I2CMFR         0x3050 /* I2C master FIFO */
+
+/*
+ * IR registers
+ */
+#define IR_RX_BUF          0xFC00
+#define IR_RX_IE           0xFD00
+#define IR_RX_IF           0xFD01
+#define IR_RX_CTRL         0xFD02
+#define IR_RX_CFG          0xFD03
+#define IR_MAX_DURATION0   0xFD04
+#define IR_MAX_DURATION1   0xFD05
+#define IR_IDLE_LEN0       0xFD06
+#define IR_IDLE_LEN1       0xFD07
+#define IR_GLITCH_LEN      0xFD08
+#define IR_RX_BUF_CTRL     0xFD09
+#define IR_RX_BUF_DATA     0xFD0A
+#define IR_RX_BC           0xFD0B
+#define IR_RX_CLK          0xFD0C
+#define IR_RX_C_COUNT_L    0xFD0D
+#define IR_RX_C_COUNT_H    0xFD0E
+#define IR_SUSPEND_CTRL    0xFD10
+#define IR_ERR_TOL_CTRL    0xFD11
+#define IR_UNIT_LEN        0xFD12
+#define IR_ERR_TOL_LEN     0xFD13
+#define IR_MAX_H_TOL_LEN   0xFD14
+#define IR_MAX_L_TOL_LEN   0xFD15
+#define IR_MASK_CTRL       0xFD16
+#define IR_MASK_DATA       0xFD17
+#define IR_RES_MASK_ADDR   0xFD18
+#define IR_RES_MASK_T_LEN  0xFD19
+
+#endif

drivers/media/usb/dvb-usb-v2/usb_urb.c

@@ -0,0 +1,362 @@
+/* usb-urb.c is part of the DVB USB library.
+ *
+ * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
+ * see dvb-usb-init.c for copyright information.
+ *
+ * This file keeps functions for initializing and handling the
+ * BULK and ISOC USB data transfers in a generic way.
+ * Can be used for DVB-only and also, that's the plan, for
+ * Hybrid USB devices (analog and DVB).
+ */
+#include "dvb_usb_common.h"
+
+/* URB stuff for streaming */
+
+int usb_urb_reconfig(struct usb_data_stream *stream,
+		struct usb_data_stream_properties *props);
+
+static void usb_urb_complete(struct urb *urb)
+{
+	struct usb_data_stream *stream = urb->context;
+	int ptype = usb_pipetype(urb->pipe);
+	int i;
+	u8 *b;
+
+	dev_dbg_ratelimited(&stream->udev->dev,
+			"%s: %s urb completed status=%d length=%d/%d pack_num=%d errors=%d\n",
+			__func__, ptype == PIPE_ISOCHRONOUS ? "isoc" : "bulk",
+			urb->status, urb->actual_length,
+			urb->transfer_buffer_length,
+			urb->number_of_packets, urb->error_count);
+
+	switch (urb->status) {
+	case 0:         /* success */
+	case -ETIMEDOUT:    /* NAK */
+		break;
+	case -ECONNRESET:   /* kill */
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:        /* error */
+		dev_dbg_ratelimited(&stream->udev->dev,
+				"%s: urb completition failed=%d\n",
+				__func__, urb->status);
+		break;
+	}
+
+	b = (u8 *) urb->transfer_buffer;
+	switch (ptype) {
+	case PIPE_ISOCHRONOUS:
+		for (i = 0; i < urb->number_of_packets; i++) {
+			if (urb->iso_frame_desc[i].status != 0)
+				dev_dbg(&stream->udev->dev,
+						"%s: iso frame descriptor has an error=%d\n",
+						__func__,
+						urb->iso_frame_desc[i].status);
+			else if (urb->iso_frame_desc[i].actual_length > 0)
+				stream->complete(stream,
+					b + urb->iso_frame_desc[i].offset,
+					urb->iso_frame_desc[i].actual_length);
+
+			urb->iso_frame_desc[i].status = 0;
+			urb->iso_frame_desc[i].actual_length = 0;
+		}
+		break;
+	case PIPE_BULK:
+		if (urb->actual_length > 0)
+			stream->complete(stream, b, urb->actual_length);
+		break;
+	default:
+		dev_err(&stream->udev->dev,
+				"%s: unknown endpoint type in completition handler\n",
+				KBUILD_MODNAME);
+		return;
+	}
+	usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+int usb_urb_killv2(struct usb_data_stream *stream)
+{
+	int i;
+	for (i = 0; i < stream->urbs_submitted; i++) {
+		dev_dbg(&stream->udev->dev, "%s: kill urb=%d\n", __func__, i);
+		/* stop the URB */
+		usb_kill_urb(stream->urb_list[i]);
+	}
+	stream->urbs_submitted = 0;
+	return 0;
+}
+
+int usb_urb_submitv2(struct usb_data_stream *stream,
+		struct usb_data_stream_properties *props)
+{
+	int i, ret;
+
+	if (props) {
+		ret = usb_urb_reconfig(stream, props);
+		if (ret < 0)
+			return ret;
+	}
+
+	for (i = 0; i < stream->urbs_initialized; i++) {
+		dev_dbg(&stream->udev->dev, "%s: submit urb=%d\n", __func__, i);
+		ret = usb_submit_urb(stream->urb_list[i], GFP_ATOMIC);
+		if (ret) {
+			dev_err(&stream->udev->dev,
+					"%s: could not submit urb no. %d - get them all back\n",
+					KBUILD_MODNAME, i);
+			usb_urb_killv2(stream);
+			return ret;
+		}
+		stream->urbs_submitted++;
+	}
+	return 0;
+}
+
+static int usb_urb_free_urbs(struct usb_data_stream *stream)
+{
+	int i;
+
+	usb_urb_killv2(stream);
+
+	for (i = stream->urbs_initialized - 1; i >= 0; i--) {
+		if (stream->urb_list[i]) {
+			dev_dbg(&stream->udev->dev, "%s: free urb=%d\n",
+					__func__, i);
+			/* free the URBs */
+			usb_free_urb(stream->urb_list[i]);
+		}
+	}
+	stream->urbs_initialized = 0;
+
+	return 0;
+}
+
+static int usb_urb_alloc_bulk_urbs(struct usb_data_stream *stream)
+{
+	int i, j;
+
+	/* allocate the URBs */
+	for (i = 0; i < stream->props.count; i++) {
+		dev_dbg(&stream->udev->dev, "%s: alloc urb=%d\n", __func__, i);
+		stream->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC);
+		if (!stream->urb_list[i]) {
+			dev_dbg(&stream->udev->dev, "%s: failed\n", __func__);
+			for (j = 0; j < i; j++)
+				usb_free_urb(stream->urb_list[j]);
+			return -ENOMEM;
+		}
+		usb_fill_bulk_urb(stream->urb_list[i],
+				stream->udev,
+				usb_rcvbulkpipe(stream->udev,
+						stream->props.endpoint),
+				stream->buf_list[i],
+				stream->props.u.bulk.buffersize,
+				usb_urb_complete, stream);
+
+		stream->urb_list[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+		stream->urb_list[i]->transfer_dma = stream->dma_addr[i];
+		stream->urbs_initialized++;
+	}
+	return 0;
+}
+
+static int usb_urb_alloc_isoc_urbs(struct usb_data_stream *stream)
+{
+	int i, j;
+
+	/* allocate the URBs */
+	for (i = 0; i < stream->props.count; i++) {
+		struct urb *urb;
+		int frame_offset = 0;
+		dev_dbg(&stream->udev->dev, "%s: alloc urb=%d\n", __func__, i);
+		stream->urb_list[i] = usb_alloc_urb(
+				stream->props.u.isoc.framesperurb, GFP_ATOMIC);
+		if (!stream->urb_list[i]) {
+			dev_dbg(&stream->udev->dev, "%s: failed\n", __func__);
+			for (j = 0; j < i; j++)
+				usb_free_urb(stream->urb_list[j]);
+			return -ENOMEM;
+		}
+
+		urb = stream->urb_list[i];
+
+		urb->dev = stream->udev;
+		urb->context = stream;
+		urb->complete = usb_urb_complete;
+		urb->pipe = usb_rcvisocpipe(stream->udev,
+				stream->props.endpoint);
+		urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
+		urb->interval = stream->props.u.isoc.interval;
+		urb->number_of_packets = stream->props.u.isoc.framesperurb;
+		urb->transfer_buffer_length = stream->props.u.isoc.framesize *
+				stream->props.u.isoc.framesperurb;
+		urb->transfer_buffer = stream->buf_list[i];
+		urb->transfer_dma = stream->dma_addr[i];
+
+		for (j = 0; j < stream->props.u.isoc.framesperurb; j++) {
+			urb->iso_frame_desc[j].offset = frame_offset;
+			urb->iso_frame_desc[j].length =
+					stream->props.u.isoc.framesize;
+			frame_offset += stream->props.u.isoc.framesize;
+		}
+
+		stream->urbs_initialized++;
+	}
+	return 0;
+}
+
+static int usb_free_stream_buffers(struct usb_data_stream *stream)
+{
+	if (stream->state & USB_STATE_URB_BUF) {
+		while (stream->buf_num) {
+			stream->buf_num--;
+			dev_dbg(&stream->udev->dev, "%s: free buf=%d\n",
+				__func__, stream->buf_num);
+			usb_free_coherent(stream->udev, stream->buf_size,
+					  stream->buf_list[stream->buf_num],
+					  stream->dma_addr[stream->buf_num]);
+		}
+	}
+
+	stream->state &= ~USB_STATE_URB_BUF;
+
+	return 0;
+}
+
+static int usb_alloc_stream_buffers(struct usb_data_stream *stream, int num,
+				    unsigned long size)
+{
+	stream->buf_num = 0;
+	stream->buf_size = size;
+
+	dev_dbg(&stream->udev->dev,
+			"%s: all in all I will use %lu bytes for streaming\n",
+			__func__,  num * size);
+
+	for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) {
+		stream->buf_list[stream->buf_num] = usb_alloc_coherent(
+				stream->udev, size, GFP_ATOMIC,
+				&stream->dma_addr[stream->buf_num]);
+		if (!stream->buf_list[stream->buf_num]) {
+			dev_dbg(&stream->udev->dev, "%s: alloc buf=%d failed\n",
+					__func__, stream->buf_num);
+			usb_free_stream_buffers(stream);
+			return -ENOMEM;
+		}
+
+		dev_dbg(&stream->udev->dev, "%s: alloc buf=%d %p (dma %llu)\n",
+				__func__, stream->buf_num,
+				stream->buf_list[stream->buf_num],
+				(long long)stream->dma_addr[stream->buf_num]);
+		memset(stream->buf_list[stream->buf_num], 0, size);
+		stream->state |= USB_STATE_URB_BUF;
+	}
+
+	return 0;
+}
+
+int usb_urb_reconfig(struct usb_data_stream *stream,
+		struct usb_data_stream_properties *props)
+{
+	int buf_size;
+
+	if (!props)
+		return 0;
+
+	/* check allocated buffers are large enough for the request */
+	if (props->type == USB_BULK) {
+		buf_size = stream->props.u.bulk.buffersize;
+	} else if (props->type == USB_ISOC) {
+		buf_size = props->u.isoc.framesize * props->u.isoc.framesperurb;
+	} else {
+		dev_err(&stream->udev->dev, "%s: invalid endpoint type=%d\n",
+				KBUILD_MODNAME, props->type);
+		return -EINVAL;
+	}
+
+	if (stream->buf_num < props->count || stream->buf_size < buf_size) {
+		dev_err(&stream->udev->dev,
+				"%s: cannot reconfigure as allocated buffers are too small\n",
+				KBUILD_MODNAME);
+		return -EINVAL;
+	}
+
+	/* check if all fields are same */
+	if (stream->props.type == props->type &&
+			stream->props.count == props->count &&
+			stream->props.endpoint == props->endpoint) {
+		if (props->type == USB_BULK &&
+				props->u.bulk.buffersize ==
+				stream->props.u.bulk.buffersize)
+			return 0;
+		else if (props->type == USB_ISOC &&
+				props->u.isoc.framesperurb ==
+				stream->props.u.isoc.framesperurb &&
+				props->u.isoc.framesize ==
+				stream->props.u.isoc.framesize &&
+				props->u.isoc.interval ==
+				stream->props.u.isoc.interval)
+			return 0;
+	}
+
+	dev_dbg(&stream->udev->dev, "%s: re-alloc urbs\n", __func__);
+
+	usb_urb_free_urbs(stream);
+	memcpy(&stream->props, props, sizeof(*props));
+	if (props->type == USB_BULK)
+		return usb_urb_alloc_bulk_urbs(stream);
+	else if (props->type == USB_ISOC)
+		return usb_urb_alloc_isoc_urbs(stream);
+
+	return 0;
+}
+
+int usb_urb_initv2(struct usb_data_stream *stream,
+		const struct usb_data_stream_properties *props)
+{
+	int ret;
+
+	if (!stream || !props)
+		return -EINVAL;
+
+	memcpy(&stream->props, props, sizeof(*props));
+
+	if (!stream->complete) {
+		dev_err(&stream->udev->dev,
+				"%s: there is no data callback - this doesn't make sense\n",
+				KBUILD_MODNAME);
+		return -EINVAL;
+	}
+
+	switch (stream->props.type) {
+	case USB_BULK:
+		ret = usb_alloc_stream_buffers(stream, stream->props.count,
+				stream->props.u.bulk.buffersize);
+		if (ret < 0)
+			return ret;
+
+		return usb_urb_alloc_bulk_urbs(stream);
+	case USB_ISOC:
+		ret = usb_alloc_stream_buffers(stream, stream->props.count,
+				stream->props.u.isoc.framesize *
+				stream->props.u.isoc.framesperurb);
+		if (ret < 0)
+			return ret;
+
+		return usb_urb_alloc_isoc_urbs(stream);
+	default:
+		dev_err(&stream->udev->dev,
+				"%s: unknown urb-type for data transfer\n",
+				KBUILD_MODNAME);
+		return -EINVAL;
+	}
+}
+
+int usb_urb_exitv2(struct usb_data_stream *stream)
+{
+	usb_urb_free_urbs(stream);
+	usb_free_stream_buffers(stream);
+
+	return 0;
+}