Fixed MTP to work with TWRP

drivers/media/usb/go7007/Kconfig

@@ -0,0 +1,51 @@
+config VIDEO_GO7007
+	tristate "WIS GO7007 MPEG encoder support"
+	depends on VIDEO_DEV && I2C
+	depends on SND && USB
+	select VIDEOBUF2_VMALLOC
+	select VIDEO_TUNER
+	select CYPRESS_FIRMWARE
+	select SND_PCM
+	select VIDEO_SONY_BTF_MPX if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_TW2804 if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_TW9903 if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_TW9906 if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_OV7640 if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_UDA1342 if MEDIA_SUBDRV_AUTOSELECT
+	---help---
+	  This is a video4linux driver for the WIS GO7007 MPEG
+	  encoder chip.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called go7007.
+
+config VIDEO_GO7007_USB
+	tristate "WIS GO7007 USB support"
+	depends on VIDEO_GO7007 && USB
+	---help---
+	  This is a video4linux driver for the WIS GO7007 MPEG
+	  encoder chip over USB.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called go7007-usb.
+
+config VIDEO_GO7007_LOADER
+	tristate "WIS GO7007 Loader support"
+	depends on VIDEO_GO7007
+	default y
+	---help---
+	  This is a go7007 firmware loader driver for the WIS GO7007
+	  MPEG encoder chip over USB.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called go7007-loader.
+
+config VIDEO_GO7007_USB_S2250_BOARD
+	tristate "Sensoray 2250/2251 support"
+	depends on VIDEO_GO7007_USB && USB
+	---help---
+	  This is a video4linux driver for the Sensoray 2250/2251 device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called s2250.

drivers/media/usb/go7007/Makefile

@@ -0,0 +1,11 @@
+obj-$(CONFIG_VIDEO_GO7007) += go7007.o
+obj-$(CONFIG_VIDEO_GO7007_USB) += go7007-usb.o
+obj-$(CONFIG_VIDEO_GO7007_LOADER) += go7007-loader.o
+obj-$(CONFIG_VIDEO_GO7007_USB_S2250_BOARD) += s2250.o
+
+go7007-y := go7007-v4l2.o go7007-driver.o go7007-i2c.o go7007-fw.o \
+		snd-go7007.o
+
+s2250-y := s2250-board.o
+
+ccflags-$(CONFIG_VIDEO_GO7007_LOADER:m=y) += -Idrivers/media/common

drivers/media/usb/go7007/go7007-driver.c

@@ -0,0 +1,766 @@
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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/module.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/unistd.h>
+#include <linux/time.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/firmware.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <media/tuner.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+
+#include "go7007-priv.h"
+
+/*
+ * Wait for an interrupt to be delivered from the GO7007SB and return
+ * the associated value and data.
+ *
+ * Must be called with the hw_lock held.
+ */
+int go7007_read_interrupt(struct go7007 *go, u16 *value, u16 *data)
+{
+	go->interrupt_available = 0;
+	go->hpi_ops->read_interrupt(go);
+	if (wait_event_timeout(go->interrupt_waitq,
+				go->interrupt_available, 5*HZ) < 0) {
+		v4l2_err(&go->v4l2_dev, "timeout waiting for read interrupt\n");
+		return -1;
+	}
+	if (!go->interrupt_available)
+		return -1;
+	go->interrupt_available = 0;
+	*value = go->interrupt_value & 0xfffe;
+	*data = go->interrupt_data;
+	return 0;
+}
+EXPORT_SYMBOL(go7007_read_interrupt);
+
+/*
+ * Read a register/address on the GO7007SB.
+ *
+ * Must be called with the hw_lock held.
+ */
+int go7007_read_addr(struct go7007 *go, u16 addr, u16 *data)
+{
+	int count = 100;
+	u16 value;
+
+	if (go7007_write_interrupt(go, 0x0010, addr) < 0)
+		return -EIO;
+	while (count-- > 0) {
+		if (go7007_read_interrupt(go, &value, data) == 0 &&
+				value == 0xa000)
+			return 0;
+	}
+	return -EIO;
+}
+EXPORT_SYMBOL(go7007_read_addr);
+
+/*
+ * Send the boot firmware to the encoder, which just wakes it up and lets
+ * us talk to the GPIO pins and on-board I2C adapter.
+ *
+ * Must be called with the hw_lock held.
+ */
+static int go7007_load_encoder(struct go7007 *go)
+{
+	const struct firmware *fw_entry;
+	char fw_name[] = "go7007/go7007fw.bin";
+	void *bounce;
+	int fw_len, rv = 0;
+	u16 intr_val, intr_data;
+
+	if (go->boot_fw == NULL) {
+		if (request_firmware(&fw_entry, fw_name, go->dev)) {
+			v4l2_err(go, "unable to load firmware from file \"%s\"\n", fw_name);
+			return -1;
+		}
+		if (fw_entry->size < 16 || memcmp(fw_entry->data, "WISGO7007FW", 11)) {
+			v4l2_err(go, "file \"%s\" does not appear to be go7007 firmware\n", fw_name);
+			release_firmware(fw_entry);
+			return -1;
+		}
+		fw_len = fw_entry->size - 16;
+		bounce = kmemdup(fw_entry->data + 16, fw_len, GFP_KERNEL);
+		if (bounce == NULL) {
+			v4l2_err(go, "unable to allocate %d bytes for firmware transfer\n", fw_len);
+			release_firmware(fw_entry);
+			return -1;
+		}
+		release_firmware(fw_entry);
+		go->boot_fw_len = fw_len;
+		go->boot_fw = bounce;
+	}
+	if (go7007_interface_reset(go) < 0 ||
+	    go7007_send_firmware(go, go->boot_fw, go->boot_fw_len) < 0 ||
+	    go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
+			(intr_val & ~0x1) != 0x5a5a) {
+		v4l2_err(go, "error transferring firmware\n");
+		rv = -1;
+	}
+	return rv;
+}
+
+MODULE_FIRMWARE("go7007/go7007fw.bin");
+
+/*
+ * Boot the encoder and register the I2C adapter if requested.  Do the
+ * minimum initialization necessary, since the board-specific code may
+ * still need to probe the board ID.
+ *
+ * Must NOT be called with the hw_lock held.
+ */
+int go7007_boot_encoder(struct go7007 *go, int init_i2c)
+{
+	int ret;
+
+	mutex_lock(&go->hw_lock);
+	ret = go7007_load_encoder(go);
+	mutex_unlock(&go->hw_lock);
+	if (ret < 0)
+		return -1;
+	if (!init_i2c)
+		return 0;
+	if (go7007_i2c_init(go) < 0)
+		return -1;
+	go->i2c_adapter_online = 1;
+	return 0;
+}
+EXPORT_SYMBOL(go7007_boot_encoder);
+
+/*
+ * Configure any hardware-related registers in the GO7007, such as GPIO
+ * pins and bus parameters, which are board-specific.  This assumes
+ * the boot firmware has already been downloaded.
+ *
+ * Must be called with the hw_lock held.
+ */
+static int go7007_init_encoder(struct go7007 *go)
+{
+	if (go->board_info->audio_flags & GO7007_AUDIO_I2S_MASTER) {
+		go7007_write_addr(go, 0x1000, 0x0811);
+		go7007_write_addr(go, 0x1000, 0x0c11);
+	}
+	switch (go->board_id) {
+	case GO7007_BOARDID_MATRIX_REV:
+		/* Set GPIO pin 0 to be an output (audio clock control) */
+		go7007_write_addr(go, 0x3c82, 0x0001);
+		go7007_write_addr(go, 0x3c80, 0x00fe);
+		break;
+	case GO7007_BOARDID_ADLINK_MPG24:
+		/* set GPIO5 to be an output, currently low */
+		go7007_write_addr(go, 0x3c82, 0x0000);
+		go7007_write_addr(go, 0x3c80, 0x00df);
+		break;
+	case GO7007_BOARDID_ADS_USBAV_709:
+		/* GPIO pin 0: audio clock control */
+		/*      pin 2: TW9906 reset */
+		/*      pin 3: capture LED */
+		go7007_write_addr(go, 0x3c82, 0x000d);
+		go7007_write_addr(go, 0x3c80, 0x00f2);
+		break;
+	}
+	return 0;
+}
+
+/*
+ * Send the boot firmware to the GO7007 and configure the registers.  This
+ * is the only way to stop the encoder once it has started streaming video.
+ *
+ * Must be called with the hw_lock held.
+ */
+int go7007_reset_encoder(struct go7007 *go)
+{
+	if (go7007_load_encoder(go) < 0)
+		return -1;
+	return go7007_init_encoder(go);
+}
+
+/*
+ * Attempt to instantiate an I2C client by ID, probably loading a module.
+ */
+static int init_i2c_module(struct i2c_adapter *adapter, const struct go_i2c *const i2c)
+{
+	struct go7007 *go = i2c_get_adapdata(adapter);
+	struct v4l2_device *v4l2_dev = &go->v4l2_dev;
+	struct v4l2_subdev *sd;
+	struct i2c_board_info info;
+
+	memset(&info, 0, sizeof(info));
+	strlcpy(info.type, i2c->type, sizeof(info.type));
+	info.addr = i2c->addr;
+	info.flags = i2c->flags;
+
+	sd = v4l2_i2c_new_subdev_board(v4l2_dev, adapter, &info, NULL);
+	if (sd) {
+		if (i2c->is_video)
+			go->sd_video = sd;
+		if (i2c->is_audio)
+			go->sd_audio = sd;
+		return 0;
+	}
+
+	pr_info("go7007: probing for module i2c:%s failed\n", i2c->type);
+	return -EINVAL;
+}
+
+/*
+ * Detach and unregister the encoder.  The go7007 struct won't be freed
+ * until v4l2 finishes releasing its resources and all associated fds are
+ * closed by applications.
+ */
+static void go7007_remove(struct v4l2_device *v4l2_dev)
+{
+	struct go7007 *go = container_of(v4l2_dev, struct go7007, v4l2_dev);
+
+	v4l2_device_unregister(v4l2_dev);
+	if (go->hpi_ops->release)
+		go->hpi_ops->release(go);
+	if (go->i2c_adapter_online) {
+		i2c_del_adapter(&go->i2c_adapter);
+		go->i2c_adapter_online = 0;
+	}
+
+	kfree(go->boot_fw);
+	go7007_v4l2_remove(go);
+	kfree(go);
+}
+
+/*
+ * Finalize the GO7007 hardware setup, register the on-board I2C adapter
+ * (if used on this board), load the I2C client driver for the sensor
+ * (SAA7115 or whatever) and other devices, and register the ALSA and V4L2
+ * interfaces.
+ *
+ * Must NOT be called with the hw_lock held.
+ */
+int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs)
+{
+	int i, ret;
+
+	dev_info(go->dev, "go7007: registering new %s\n", go->name);
+
+	go->v4l2_dev.release = go7007_remove;
+	ret = v4l2_device_register(go->dev, &go->v4l2_dev);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&go->hw_lock);
+	ret = go7007_init_encoder(go);
+	mutex_unlock(&go->hw_lock);
+	if (ret < 0)
+		return ret;
+
+	ret = go7007_v4l2_ctrl_init(go);
+	if (ret < 0)
+		return ret;
+
+	if (!go->i2c_adapter_online &&
+			go->board_info->flags & GO7007_BOARD_USE_ONBOARD_I2C) {
+		ret = go7007_i2c_init(go);
+		if (ret < 0)
+			return ret;
+		go->i2c_adapter_online = 1;
+	}
+	if (go->i2c_adapter_online) {
+		if (go->board_id == GO7007_BOARDID_ADS_USBAV_709) {
+			/* Reset the TW9906 */
+			go7007_write_addr(go, 0x3c82, 0x0009);
+			msleep(50);
+			go7007_write_addr(go, 0x3c82, 0x000d);
+		}
+		for (i = 0; i < num_i2c_devs; ++i)
+			init_i2c_module(&go->i2c_adapter, &go->board_info->i2c_devs[i]);
+
+		if (go->tuner_type >= 0) {
+			struct tuner_setup setup = {
+				.addr = ADDR_UNSET,
+				.type = go->tuner_type,
+				.mode_mask = T_ANALOG_TV,
+			};
+
+			v4l2_device_call_all(&go->v4l2_dev, 0, tuner,
+				s_type_addr, &setup);
+		}
+		if (go->board_id == GO7007_BOARDID_ADLINK_MPG24)
+			v4l2_subdev_call(go->sd_video, video, s_routing,
+					0, 0, go->channel_number + 1);
+	}
+
+	ret = go7007_v4l2_init(go);
+	if (ret < 0)
+		return ret;
+
+	if (go->board_info->flags & GO7007_BOARD_HAS_AUDIO) {
+		go->audio_enabled = 1;
+		go7007_snd_init(go);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(go7007_register_encoder);
+
+/*
+ * Send the encode firmware to the encoder, which will cause it
+ * to immediately start delivering the video and audio streams.
+ *
+ * Must be called with the hw_lock held.
+ */
+int go7007_start_encoder(struct go7007 *go)
+{
+	u8 *fw;
+	int fw_len, rv = 0, i, x, y;
+	u16 intr_val, intr_data;
+
+	go->modet_enable = 0;
+	for (i = 0; i < 4; i++)
+		go->modet[i].enable = 0;
+
+	switch (v4l2_ctrl_g_ctrl(go->modet_mode)) {
+	case V4L2_DETECT_MD_MODE_GLOBAL:
+		memset(go->modet_map, 0, sizeof(go->modet_map));
+		go->modet[0].enable = 1;
+		go->modet_enable = 1;
+		break;
+	case V4L2_DETECT_MD_MODE_REGION_GRID:
+		for (y = 0; y < go->height / 16; y++) {
+			for (x = 0; x < go->width / 16; x++) {
+				int idx = y * go->width / 16 + x;
+
+				go->modet[go->modet_map[idx]].enable = 1;
+			}
+		}
+		go->modet_enable = 1;
+		break;
+	}
+
+	if (go->dvd_mode)
+		go->modet_enable = 0;
+
+	if (go7007_construct_fw_image(go, &fw, &fw_len) < 0)
+		return -1;
+
+	if (go7007_send_firmware(go, fw, fw_len) < 0 ||
+			go7007_read_interrupt(go, &intr_val, &intr_data) < 0) {
+		v4l2_err(&go->v4l2_dev, "error transferring firmware\n");
+		rv = -1;
+		goto start_error;
+	}
+
+	go->state = STATE_DATA;
+	go->parse_length = 0;
+	go->seen_frame = 0;
+	if (go7007_stream_start(go) < 0) {
+		v4l2_err(&go->v4l2_dev, "error starting stream transfer\n");
+		rv = -1;
+		goto start_error;
+	}
+
+start_error:
+	kfree(fw);
+	return rv;
+}
+
+/*
+ * Store a byte in the current video buffer, if there is one.
+ */
+static inline void store_byte(struct go7007_buffer *vb, u8 byte)
+{
+	if (vb && vb->vb.v4l2_planes[0].bytesused < GO7007_BUF_SIZE) {
+		u8 *ptr = vb2_plane_vaddr(&vb->vb, 0);
+
+		ptr[vb->vb.v4l2_planes[0].bytesused++] = byte;
+	}
+}
+
+static void go7007_set_motion_regions(struct go7007 *go, struct go7007_buffer *vb,
+		u32 motion_regions)
+{
+	if (motion_regions != go->modet_event_status) {
+		struct v4l2_event ev = {
+			.type = V4L2_EVENT_MOTION_DET,
+			.u.motion_det = {
+				.flags = V4L2_EVENT_MD_FL_HAVE_FRAME_SEQ,
+				.frame_sequence = vb->vb.v4l2_buf.sequence,
+				.region_mask = motion_regions,
+			},
+		};
+
+		v4l2_event_queue(&go->vdev, &ev);
+		go->modet_event_status = motion_regions;
+	}
+}
+
+/*
+ * Determine regions with motion and send a motion detection event
+ * in case of changes.
+ */
+static void go7007_motion_regions(struct go7007 *go, struct go7007_buffer *vb)
+{
+	u32 *bytesused = &vb->vb.v4l2_planes[0].bytesused;
+	unsigned motion[4] = { 0, 0, 0, 0 };
+	u32 motion_regions = 0;
+	unsigned stride = (go->width + 7) >> 3;
+	unsigned x, y;
+	int i;
+
+	for (i = 0; i < 216; ++i)
+		store_byte(vb, go->active_map[i]);
+	for (y = 0; y < go->height / 16; y++) {
+		for (x = 0; x < go->width / 16; x++) {
+			if (!(go->active_map[y * stride + (x >> 3)] & (1 << (x & 7))))
+				continue;
+			motion[go->modet_map[y * (go->width / 16) + x]]++;
+		}
+	}
+	motion_regions = ((motion[0] > 0) << 0) |
+			 ((motion[1] > 0) << 1) |
+			 ((motion[2] > 0) << 2) |
+			 ((motion[3] > 0) << 3);
+	*bytesused -= 216;
+	go7007_set_motion_regions(go, vb, motion_regions);
+}
+
+/*
+ * Deliver the last video buffer and get a new one to start writing to.
+ */
+static struct go7007_buffer *frame_boundary(struct go7007 *go, struct go7007_buffer *vb)
+{
+	u32 *bytesused = &vb->vb.v4l2_planes[0].bytesused;
+	struct go7007_buffer *vb_tmp = NULL;
+
+	if (vb == NULL) {
+		spin_lock(&go->spinlock);
+		if (!list_empty(&go->vidq_active))
+			vb = go->active_buf =
+				list_first_entry(&go->vidq_active, struct go7007_buffer, list);
+		spin_unlock(&go->spinlock);
+		go->next_seq++;
+		return vb;
+	}
+
+	vb->vb.v4l2_buf.sequence = go->next_seq++;
+	if (vb->modet_active && *bytesused + 216 < GO7007_BUF_SIZE)
+		go7007_motion_regions(go, vb);
+	else
+		go7007_set_motion_regions(go, vb, 0);
+
+	v4l2_get_timestamp(&vb->vb.v4l2_buf.timestamp);
+	vb_tmp = vb;
+	spin_lock(&go->spinlock);
+	list_del(&vb->list);
+	if (list_empty(&go->vidq_active))
+		vb = NULL;
+	else
+		vb = list_first_entry(&go->vidq_active, struct go7007_buffer, list);
+	go->active_buf = vb;
+	spin_unlock(&go->spinlock);
+	vb2_buffer_done(&vb_tmp->vb, VB2_BUF_STATE_DONE);
+	return vb;
+}
+
+static void write_bitmap_word(struct go7007 *go)
+{
+	int x, y, i, stride = ((go->width >> 4) + 7) >> 3;
+
+	for (i = 0; i < 16; ++i) {
+		y = (((go->parse_length - 1) << 3) + i) / (go->width >> 4);
+		x = (((go->parse_length - 1) << 3) + i) % (go->width >> 4);
+		if (stride * y + (x >> 3) < sizeof(go->active_map))
+			go->active_map[stride * y + (x >> 3)] |=
+					(go->modet_word & 1) << (x & 0x7);
+		go->modet_word >>= 1;
+	}
+}
+
+/*
+ * Parse a chunk of the video stream into frames.  The frames are not
+ * delimited by the hardware, so we have to parse the frame boundaries
+ * based on the type of video stream we're receiving.
+ */
+void go7007_parse_video_stream(struct go7007 *go, u8 *buf, int length)
+{
+	struct go7007_buffer *vb = go->active_buf;
+	int i, seq_start_code = -1, gop_start_code = -1, frame_start_code = -1;
+
+	switch (go->format) {
+	case V4L2_PIX_FMT_MPEG4:
+		seq_start_code = 0xB0;
+		gop_start_code = 0xB3;
+		frame_start_code = 0xB6;
+		break;
+	case V4L2_PIX_FMT_MPEG1:
+	case V4L2_PIX_FMT_MPEG2:
+		seq_start_code = 0xB3;
+		gop_start_code = 0xB8;
+		frame_start_code = 0x00;
+		break;
+	}
+
+	for (i = 0; i < length; ++i) {
+		if (vb && vb->vb.v4l2_planes[0].bytesused >= GO7007_BUF_SIZE - 3) {
+			v4l2_info(&go->v4l2_dev, "dropping oversized frame\n");
+			vb->vb.v4l2_planes[0].bytesused = 0;
+			vb->frame_offset = 0;
+			vb->modet_active = 0;
+			vb = go->active_buf = NULL;
+		}
+
+		switch (go->state) {
+		case STATE_DATA:
+			switch (buf[i]) {
+			case 0x00:
+				go->state = STATE_00;
+				break;
+			case 0xFF:
+				go->state = STATE_FF;
+				break;
+			default:
+				store_byte(vb, buf[i]);
+				break;
+			}
+			break;
+		case STATE_00:
+			switch (buf[i]) {
+			case 0x00:
+				go->state = STATE_00_00;
+				break;
+			case 0xFF:
+				store_byte(vb, 0x00);
+				go->state = STATE_FF;
+				break;
+			default:
+				store_byte(vb, 0x00);
+				store_byte(vb, buf[i]);
+				go->state = STATE_DATA;
+				break;
+			}
+			break;
+		case STATE_00_00:
+			switch (buf[i]) {
+			case 0x00:
+				store_byte(vb, 0x00);
+				/* go->state remains STATE_00_00 */
+				break;
+			case 0x01:
+				go->state = STATE_00_00_01;
+				break;
+			case 0xFF:
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x00);
+				go->state = STATE_FF;
+				break;
+			default:
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x00);
+				store_byte(vb, buf[i]);
+				go->state = STATE_DATA;
+				break;
+			}
+			break;
+		case STATE_00_00_01:
+			if (buf[i] == 0xF8 && go->modet_enable == 0) {
+				/* MODET start code, but MODET not enabled */
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x01);
+				store_byte(vb, 0xF8);
+				go->state = STATE_DATA;
+				break;
+			}
+			/* If this is the start of a new MPEG frame,
+			 * get a new buffer */
+			if ((go->format == V4L2_PIX_FMT_MPEG1 ||
+			     go->format == V4L2_PIX_FMT_MPEG2 ||
+			     go->format == V4L2_PIX_FMT_MPEG4) &&
+			    (buf[i] == seq_start_code ||
+			     buf[i] == gop_start_code ||
+			     buf[i] == frame_start_code)) {
+				if (vb == NULL || go->seen_frame)
+					vb = frame_boundary(go, vb);
+				go->seen_frame = buf[i] == frame_start_code;
+				if (vb && go->seen_frame)
+					vb->frame_offset = vb->vb.v4l2_planes[0].bytesused;
+			}
+			/* Handle any special chunk types, or just write the
+			 * start code to the (potentially new) buffer */
+			switch (buf[i]) {
+			case 0xF5: /* timestamp */
+				go->parse_length = 12;
+				go->state = STATE_UNPARSED;
+				break;
+			case 0xF6: /* vbi */
+				go->state = STATE_VBI_LEN_A;
+				break;
+			case 0xF8: /* MD map */
+				go->parse_length = 0;
+				memset(go->active_map, 0,
+						sizeof(go->active_map));
+				go->state = STATE_MODET_MAP;
+				break;
+			case 0xFF: /* Potential JPEG start code */
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x01);
+				go->state = STATE_FF;
+				break;
+			default:
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x00);
+				store_byte(vb, 0x01);
+				store_byte(vb, buf[i]);
+				go->state = STATE_DATA;
+				break;
+			}
+			break;
+		case STATE_FF:
+			switch (buf[i]) {
+			case 0x00:
+				store_byte(vb, 0xFF);
+				go->state = STATE_00;
+				break;
+			case 0xFF:
+				store_byte(vb, 0xFF);
+				/* go->state remains STATE_FF */
+				break;
+			case 0xD8:
+				if (go->format == V4L2_PIX_FMT_MJPEG)
+					vb = frame_boundary(go, vb);
+				/* fall through */
+			default:
+				store_byte(vb, 0xFF);
+				store_byte(vb, buf[i]);
+				go->state = STATE_DATA;
+				break;
+			}
+			break;
+		case STATE_VBI_LEN_A:
+			go->parse_length = buf[i] << 8;
+			go->state = STATE_VBI_LEN_B;
+			break;
+		case STATE_VBI_LEN_B:
+			go->parse_length |= buf[i];
+			if (go->parse_length > 0)
+				go->state = STATE_UNPARSED;
+			else
+				go->state = STATE_DATA;
+			break;
+		case STATE_MODET_MAP:
+			if (go->parse_length < 204) {
+				if (go->parse_length & 1) {
+					go->modet_word |= buf[i];
+					write_bitmap_word(go);
+				} else
+					go->modet_word = buf[i] << 8;
+			} else if (go->parse_length == 207 && vb) {
+				vb->modet_active = buf[i];
+			}
+			if (++go->parse_length == 208)
+				go->state = STATE_DATA;
+			break;
+		case STATE_UNPARSED:
+			if (--go->parse_length == 0)
+				go->state = STATE_DATA;
+			break;
+		}
+	}
+}
+EXPORT_SYMBOL(go7007_parse_video_stream);
+
+/*
+ * Allocate a new go7007 struct.  Used by the hardware-specific probe.
+ */
+struct go7007 *go7007_alloc(const struct go7007_board_info *board,
+						struct device *dev)
+{
+	struct go7007 *go;
+	int i;
+
+	go = kzalloc(sizeof(struct go7007), GFP_KERNEL);
+	if (go == NULL)
+		return NULL;
+	go->dev = dev;
+	go->board_info = board;
+	go->board_id = 0;
+	go->tuner_type = -1;
+	go->channel_number = 0;
+	go->name[0] = 0;
+	mutex_init(&go->hw_lock);
+	init_waitqueue_head(&go->frame_waitq);
+	spin_lock_init(&go->spinlock);
+	go->status = STATUS_INIT;
+	memset(&go->i2c_adapter, 0, sizeof(go->i2c_adapter));
+	go->i2c_adapter_online = 0;
+	go->interrupt_available = 0;
+	init_waitqueue_head(&go->interrupt_waitq);
+	go->input = 0;
+	go7007_update_board(go);
+	go->encoder_h_halve = 0;
+	go->encoder_v_halve = 0;
+	go->encoder_subsample = 0;
+	go->format = V4L2_PIX_FMT_MJPEG;
+	go->bitrate = 1500000;
+	go->fps_scale = 1;
+	go->pali = 0;
+	go->aspect_ratio = GO7007_RATIO_1_1;
+	go->gop_size = 0;
+	go->ipb = 0;
+	go->closed_gop = 0;
+	go->repeat_seqhead = 0;
+	go->seq_header_enable = 0;
+	go->gop_header_enable = 0;
+	go->dvd_mode = 0;
+	go->interlace_coding = 0;
+	for (i = 0; i < 4; ++i)
+		go->modet[i].enable = 0;
+	for (i = 0; i < 1624; ++i)
+		go->modet_map[i] = 0;
+	go->audio_deliver = NULL;
+	go->audio_enabled = 0;
+
+	return go;
+}
+EXPORT_SYMBOL(go7007_alloc);
+
+void go7007_update_board(struct go7007 *go)
+{
+	const struct go7007_board_info *board = go->board_info;
+
+	if (board->sensor_flags & GO7007_SENSOR_TV) {
+		go->standard = GO7007_STD_NTSC;
+		go->std = V4L2_STD_NTSC_M;
+		go->width = 720;
+		go->height = 480;
+		go->sensor_framerate = 30000;
+	} else {
+		go->standard = GO7007_STD_OTHER;
+		go->width = board->sensor_width;
+		go->height = board->sensor_height;
+		go->sensor_framerate = board->sensor_framerate;
+	}
+	go->encoder_v_offset = board->sensor_v_offset;
+	go->encoder_h_offset = board->sensor_h_offset;
+}
+EXPORT_SYMBOL(go7007_update_board);
+
+MODULE_LICENSE("GPL v2");

drivers/media/usb/go7007/go7007-i2c.c

@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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/module.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/unistd.h>
+#include <linux/time.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+
+#include "go7007-priv.h"
+
+/********************* Driver for on-board I2C adapter *********************/
+
+/* #define GO7007_I2C_DEBUG */
+
+#define SPI_I2C_ADDR_BASE		0x1400
+#define STATUS_REG_ADDR			(SPI_I2C_ADDR_BASE + 0x2)
+#define I2C_CTRL_REG_ADDR		(SPI_I2C_ADDR_BASE + 0x6)
+#define I2C_DEV_UP_ADDR_REG_ADDR	(SPI_I2C_ADDR_BASE + 0x7)
+#define I2C_LO_ADDR_REG_ADDR		(SPI_I2C_ADDR_BASE + 0x8)
+#define I2C_DATA_REG_ADDR		(SPI_I2C_ADDR_BASE + 0x9)
+#define I2C_CLKFREQ_REG_ADDR		(SPI_I2C_ADDR_BASE + 0xa)
+
+#define I2C_STATE_MASK			0x0007
+#define I2C_READ_READY_MASK		0x0008
+
+/* There is only one I2C port on the TW2804 that feeds all four GO7007 VIPs
+ * on the Adlink PCI-MPG24, so access is shared between all of them. */
+static DEFINE_MUTEX(adlink_mpg24_i2c_lock);
+
+static int go7007_i2c_xfer(struct go7007 *go, u16 addr, int read,
+		u16 command, int flags, u8 *data)
+{
+	int i, ret = -EIO;
+	u16 val;
+
+	if (go->status == STATUS_SHUTDOWN)
+		return -ENODEV;
+
+#ifdef GO7007_I2C_DEBUG
+	if (read)
+		dev_dbg(go->dev, "go7007-i2c: reading 0x%02x on 0x%02x\n",
+			command, addr);
+	else
+		dev_dbg(go->dev,
+			"go7007-i2c: writing 0x%02x to 0x%02x on 0x%02x\n",
+			*data, command, addr);
+#endif
+
+	mutex_lock(&go->hw_lock);
+
+	if (go->board_id == GO7007_BOARDID_ADLINK_MPG24) {
+		/* Bridge the I2C port on this GO7007 to the shared bus */
+		mutex_lock(&adlink_mpg24_i2c_lock);
+		go7007_write_addr(go, 0x3c82, 0x0020);
+	}
+
+	/* Wait for I2C adapter to be ready */
+	for (i = 0; i < 10; ++i) {
+		if (go7007_read_addr(go, STATUS_REG_ADDR, &val) < 0)
+			goto i2c_done;
+		if (!(val & I2C_STATE_MASK))
+			break;
+		msleep(100);
+	}
+	if (i == 10) {
+		dev_err(go->dev, "go7007-i2c: I2C adapter is hung\n");
+		goto i2c_done;
+	}
+
+	/* Set target register (command) */
+	go7007_write_addr(go, I2C_CTRL_REG_ADDR, flags);
+	go7007_write_addr(go, I2C_LO_ADDR_REG_ADDR, command);
+
+	/* If we're writing, send the data and target address and we're done */
+	if (!read) {
+		go7007_write_addr(go, I2C_DATA_REG_ADDR, *data);
+		go7007_write_addr(go, I2C_DEV_UP_ADDR_REG_ADDR,
+					(addr << 9) | (command >> 8));
+		ret = 0;
+		goto i2c_done;
+	}
+
+	/* Otherwise, we're reading.  First clear i2c_rx_data_rdy. */
+	if (go7007_read_addr(go, I2C_DATA_REG_ADDR, &val) < 0)
+		goto i2c_done;
+
+	/* Send the target address plus read flag */
+	go7007_write_addr(go, I2C_DEV_UP_ADDR_REG_ADDR,
+			(addr << 9) | 0x0100 | (command >> 8));
+
+	/* Wait for i2c_rx_data_rdy */
+	for (i = 0; i < 10; ++i) {
+		if (go7007_read_addr(go, STATUS_REG_ADDR, &val) < 0)
+			goto i2c_done;
+		if (val & I2C_READ_READY_MASK)
+			break;
+		msleep(100);
+	}
+	if (i == 10) {
+		dev_err(go->dev, "go7007-i2c: I2C adapter is hung\n");
+		goto i2c_done;
+	}
+
+	/* Retrieve the read byte */
+	if (go7007_read_addr(go, I2C_DATA_REG_ADDR, &val) < 0)
+		goto i2c_done;
+	*data = val;
+	ret = 0;
+
+i2c_done:
+	if (go->board_id == GO7007_BOARDID_ADLINK_MPG24) {
+		/* Isolate the I2C port on this GO7007 from the shared bus */
+		go7007_write_addr(go, 0x3c82, 0x0000);
+		mutex_unlock(&adlink_mpg24_i2c_lock);
+	}
+	mutex_unlock(&go->hw_lock);
+	return ret;
+}
+
+static int go7007_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
+		unsigned short flags, char read_write,
+		u8 command, int size, union i2c_smbus_data *data)
+{
+	struct go7007 *go = i2c_get_adapdata(adapter);
+
+	if (size != I2C_SMBUS_BYTE_DATA)
+		return -EIO;
+	return go7007_i2c_xfer(go, addr, read_write == I2C_SMBUS_READ, command,
+			flags & I2C_CLIENT_SCCB ? 0x10 : 0x00, &data->byte);
+}
+
+/* VERY LIMITED I2C master xfer function -- only needed because the
+ * SMBus functions only support 8-bit commands and the SAA7135 uses
+ * 16-bit commands.  The I2C interface on the GO7007, as limited as
+ * it is, does support this mode. */
+
+static int go7007_i2c_master_xfer(struct i2c_adapter *adapter,
+					struct i2c_msg msgs[], int num)
+{
+	struct go7007 *go = i2c_get_adapdata(adapter);
+	int i;
+
+	for (i = 0; i < num; ++i) {
+		/* We can only do two things here -- write three bytes, or
+		 * write two bytes and read one byte. */
+		if (msgs[i].len == 2) {
+			if (i + 1 == num || msgs[i].addr != msgs[i + 1].addr ||
+					(msgs[i].flags & I2C_M_RD) ||
+					!(msgs[i + 1].flags & I2C_M_RD) ||
+					msgs[i + 1].len != 1)
+				return -EIO;
+			if (go7007_i2c_xfer(go, msgs[i].addr, 1,
+					(msgs[i].buf[0] << 8) | msgs[i].buf[1],
+					0x01, &msgs[i + 1].buf[0]) < 0)
+				return -EIO;
+			++i;
+		} else if (msgs[i].len == 3) {
+			if (msgs[i].flags & I2C_M_RD)
+				return -EIO;
+			if (msgs[i].len != 3)
+				return -EIO;
+			if (go7007_i2c_xfer(go, msgs[i].addr, 0,
+					(msgs[i].buf[0] << 8) | msgs[i].buf[1],
+					0x01, &msgs[i].buf[2]) < 0)
+				return -EIO;
+		} else
+			return -EIO;
+	}
+
+	return num;
+}
+
+static u32 go7007_functionality(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_SMBUS_BYTE_DATA;
+}
+
+static struct i2c_algorithm go7007_algo = {
+	.smbus_xfer	= go7007_smbus_xfer,
+	.master_xfer	= go7007_i2c_master_xfer,
+	.functionality	= go7007_functionality,
+};
+
+static struct i2c_adapter go7007_adap_templ = {
+	.owner			= THIS_MODULE,
+	.name			= "WIS GO7007SB",
+	.algo			= &go7007_algo,
+};
+
+int go7007_i2c_init(struct go7007 *go)
+{
+	memcpy(&go->i2c_adapter, &go7007_adap_templ,
+			sizeof(go7007_adap_templ));
+	go->i2c_adapter.dev.parent = go->dev;
+	i2c_set_adapdata(&go->i2c_adapter, go);
+	if (i2c_add_adapter(&go->i2c_adapter) < 0) {
+		dev_err(go->dev,
+			"go7007-i2c: error: i2c_add_adapter failed\n");
+		return -1;
+	}
+	return 0;
+}

drivers/media/usb/go7007/go7007-loader.c

@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2008 Sensoray Company Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/firmware.h>
+#include <cypress_firmware.h>
+
+struct fw_config {
+	u16 vendor;
+	u16 product;
+	const char * const fw_name1;
+	const char * const fw_name2;
+};
+
+static struct fw_config fw_configs[] = {
+	{ 0x1943, 0xa250, "go7007/s2250-1.fw", "go7007/s2250-2.fw" },
+	{ 0x093b, 0xa002, "go7007/px-m402u.fw", NULL },
+	{ 0x093b, 0xa004, "go7007/px-tv402u.fw", NULL },
+	{ 0x0eb1, 0x6666, "go7007/lr192.fw", NULL },
+	{ 0x0eb1, 0x6668, "go7007/wis-startrek.fw", NULL },
+	{ 0, 0, NULL, NULL }
+};
+MODULE_FIRMWARE("go7007/s2250-1.fw");
+MODULE_FIRMWARE("go7007/s2250-2.fw");
+MODULE_FIRMWARE("go7007/px-m402u.fw");
+MODULE_FIRMWARE("go7007/px-tv402u.fw");
+MODULE_FIRMWARE("go7007/lr192.fw");
+MODULE_FIRMWARE("go7007/wis-startrek.fw");
+
+static int go7007_loader_probe(struct usb_interface *interface,
+				const struct usb_device_id *id)
+{
+	struct usb_device *usbdev;
+	const struct firmware *fw;
+	u16 vendor, product;
+	const char *fw1, *fw2;
+	int ret;
+	int i;
+
+	usbdev = usb_get_dev(interface_to_usbdev(interface));
+	if (!usbdev)
+		goto failed2;
+
+	if (usbdev->descriptor.bNumConfigurations != 1) {
+		dev_err(&interface->dev, "can't handle multiple config\n");
+		goto failed2;
+	}
+
+	vendor = le16_to_cpu(usbdev->descriptor.idVendor);
+	product = le16_to_cpu(usbdev->descriptor.idProduct);
+
+	for (i = 0; fw_configs[i].fw_name1; i++)
+		if (fw_configs[i].vendor == vendor &&
+		    fw_configs[i].product == product)
+			break;
+
+	/* Should never happen */
+	if (fw_configs[i].fw_name1 == NULL)
+		goto failed2;
+
+	fw1 = fw_configs[i].fw_name1;
+	fw2 = fw_configs[i].fw_name2;
+
+	dev_info(&interface->dev, "loading firmware %s\n", fw1);
+
+	if (request_firmware(&fw, fw1, &usbdev->dev)) {
+		dev_err(&interface->dev,
+			"unable to load firmware from file \"%s\"\n", fw1);
+		goto failed2;
+	}
+	ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
+	release_firmware(fw);
+	if (0 != ret) {
+		dev_err(&interface->dev, "loader download failed\n");
+		goto failed2;
+	}
+
+	if (fw2 == NULL)
+		return 0;
+
+	if (request_firmware(&fw, fw2, &usbdev->dev)) {
+		dev_err(&interface->dev,
+			"unable to load firmware from file \"%s\"\n", fw2);
+		goto failed2;
+	}
+	ret = cypress_load_firmware(usbdev, fw, CYPRESS_FX2);
+	release_firmware(fw);
+	if (0 != ret) {
+		dev_err(&interface->dev, "firmware download failed\n");
+		goto failed2;
+	}
+	return 0;
+
+failed2:
+	usb_put_dev(usbdev);
+	dev_err(&interface->dev, "probe failed\n");
+	return -ENODEV;
+}
+
+static void go7007_loader_disconnect(struct usb_interface *interface)
+{
+	dev_info(&interface->dev, "disconnect\n");
+	usb_put_dev(interface_to_usbdev(interface));
+	usb_set_intfdata(interface, NULL);
+}
+
+static const struct usb_device_id go7007_loader_ids[] = {
+	{ USB_DEVICE(0x1943, 0xa250) },
+	{ USB_DEVICE(0x093b, 0xa002) },
+	{ USB_DEVICE(0x093b, 0xa004) },
+	{ USB_DEVICE(0x0eb1, 0x6666) },
+	{ USB_DEVICE(0x0eb1, 0x6668) },
+	{}                          /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, go7007_loader_ids);
+
+static struct usb_driver go7007_loader_driver = {
+	.name		= "go7007-loader",
+	.probe		= go7007_loader_probe,
+	.disconnect	= go7007_loader_disconnect,
+	.id_table	= go7007_loader_ids,
+};
+
+module_usb_driver(go7007_loader_driver);
+
+MODULE_AUTHOR("");
+MODULE_DESCRIPTION("firmware loader for go7007-usb");
+MODULE_LICENSE("GPL v2");

drivers/media/usb/go7007/go7007-priv.h

@@ -0,0 +1,306 @@
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+/*
+ * This is the private include file for the go7007 driver.  It should not
+ * be included by anybody but the driver itself, and especially not by
+ * user-space applications.
+ */
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fh.h>
+#include <media/videobuf2-core.h>
+
+struct go7007;
+
+/* IDs to activate board-specific support code */
+#define GO7007_BOARDID_MATRIX_II	0
+#define GO7007_BOARDID_MATRIX_RELOAD	1
+#define GO7007_BOARDID_STAR_TREK	2
+#define GO7007_BOARDID_PCI_VOYAGER	3
+#define GO7007_BOARDID_XMEN		4
+#define GO7007_BOARDID_XMEN_II		5
+#define GO7007_BOARDID_XMEN_III		6
+#define GO7007_BOARDID_MATRIX_REV	7
+#define GO7007_BOARDID_PX_M402U		8
+#define GO7007_BOARDID_PX_TV402U	9
+#define GO7007_BOARDID_LIFEVIEW_LR192	10 /* TV Walker Ultra */
+#define GO7007_BOARDID_ENDURA		11
+#define GO7007_BOARDID_ADLINK_MPG24	12
+#define GO7007_BOARDID_SENSORAY_2250	13 /* Sensoray 2250/2251 */
+#define GO7007_BOARDID_ADS_USBAV_709    14
+
+/* Various characteristics of each board */
+#define GO7007_BOARD_HAS_AUDIO		(1<<0)
+#define GO7007_BOARD_USE_ONBOARD_I2C	(1<<1)
+#define GO7007_BOARD_HAS_TUNER		(1<<2)
+
+/* Characteristics of sensor devices */
+#define GO7007_SENSOR_VALID_POLAR	(1<<0)
+#define GO7007_SENSOR_HREF_POLAR	(1<<1)
+#define GO7007_SENSOR_VREF_POLAR	(1<<2)
+#define GO7007_SENSOR_FIELD_ID_POLAR	(1<<3)
+#define GO7007_SENSOR_BIT_WIDTH		(1<<4)
+#define GO7007_SENSOR_VALID_ENABLE	(1<<5)
+#define GO7007_SENSOR_656		(1<<6)
+#define GO7007_SENSOR_CONFIG_MASK	0x7f
+#define GO7007_SENSOR_TV		(1<<7)
+#define GO7007_SENSOR_VBI		(1<<8)
+#define GO7007_SENSOR_SCALING		(1<<9)
+#define GO7007_SENSOR_SAA7115		(1<<10)
+
+/* Characteristics of audio sensor devices */
+#define GO7007_AUDIO_I2S_MODE_1		(1)
+#define GO7007_AUDIO_I2S_MODE_2		(2)
+#define GO7007_AUDIO_I2S_MODE_3		(3)
+#define GO7007_AUDIO_BCLK_POLAR		(1<<2)
+#define GO7007_AUDIO_WORD_14		(14<<4)
+#define GO7007_AUDIO_WORD_16		(16<<4)
+#define GO7007_AUDIO_ONE_CHANNEL	(1<<11)
+#define GO7007_AUDIO_I2S_MASTER		(1<<16)
+#define GO7007_AUDIO_OKI_MODE		(1<<17)
+
+#define GO7007_CID_CUSTOM_BASE		(V4L2_CID_DETECT_CLASS_BASE + 0x1000)
+#define V4L2_CID_PIXEL_THRESHOLD0	(GO7007_CID_CUSTOM_BASE+1)
+#define V4L2_CID_MOTION_THRESHOLD0	(GO7007_CID_CUSTOM_BASE+2)
+#define V4L2_CID_MB_THRESHOLD0		(GO7007_CID_CUSTOM_BASE+3)
+#define V4L2_CID_PIXEL_THRESHOLD1	(GO7007_CID_CUSTOM_BASE+4)
+#define V4L2_CID_MOTION_THRESHOLD1	(GO7007_CID_CUSTOM_BASE+5)
+#define V4L2_CID_MB_THRESHOLD1		(GO7007_CID_CUSTOM_BASE+6)
+#define V4L2_CID_PIXEL_THRESHOLD2	(GO7007_CID_CUSTOM_BASE+7)
+#define V4L2_CID_MOTION_THRESHOLD2	(GO7007_CID_CUSTOM_BASE+8)
+#define V4L2_CID_MB_THRESHOLD2		(GO7007_CID_CUSTOM_BASE+9)
+#define V4L2_CID_PIXEL_THRESHOLD3	(GO7007_CID_CUSTOM_BASE+10)
+#define V4L2_CID_MOTION_THRESHOLD3	(GO7007_CID_CUSTOM_BASE+11)
+#define V4L2_CID_MB_THRESHOLD3		(GO7007_CID_CUSTOM_BASE+12)
+
+struct go7007_board_info {
+	unsigned int flags;
+	int hpi_buffer_cap;
+	unsigned int sensor_flags;
+	int sensor_width;
+	int sensor_height;
+	int sensor_framerate;
+	int sensor_h_offset;
+	int sensor_v_offset;
+	unsigned int audio_flags;
+	int audio_rate;
+	int audio_bclk_div;
+	int audio_main_div;
+	int num_i2c_devs;
+	struct go_i2c {
+		const char *type;
+		unsigned int is_video:1;
+		unsigned int is_audio:1;
+		int addr;
+		u32 flags;
+	} i2c_devs[5];
+	int num_inputs;
+	struct {
+		int video_input;
+		int audio_index;
+		char *name;
+	} inputs[4];
+	int video_config;
+	int num_aud_inputs;
+	struct {
+		int audio_input;
+		char *name;
+	} aud_inputs[3];
+};
+
+struct go7007_hpi_ops {
+	int (*interface_reset)(struct go7007 *go);
+	int (*write_interrupt)(struct go7007 *go, int addr, int data);
+	int (*read_interrupt)(struct go7007 *go);
+	int (*stream_start)(struct go7007 *go);
+	int (*stream_stop)(struct go7007 *go);
+	int (*send_firmware)(struct go7007 *go, u8 *data, int len);
+	int (*send_command)(struct go7007 *go, unsigned int cmd, void *arg);
+	void (*release)(struct go7007 *go);
+};
+
+/* The video buffer size must be a multiple of PAGE_SIZE */
+#define	GO7007_BUF_PAGES	(128 * 1024 / PAGE_SIZE)
+#define	GO7007_BUF_SIZE		(GO7007_BUF_PAGES << PAGE_SHIFT)
+
+struct go7007_buffer {
+	struct vb2_buffer vb;
+	struct list_head list;
+	unsigned int frame_offset;
+	u32 modet_active;
+};
+
+#define GO7007_RATIO_1_1	0
+#define GO7007_RATIO_4_3	1
+#define GO7007_RATIO_16_9	2
+
+enum go7007_parser_state {
+	STATE_DATA,
+	STATE_00,
+	STATE_00_00,
+	STATE_00_00_01,
+	STATE_FF,
+	STATE_VBI_LEN_A,
+	STATE_VBI_LEN_B,
+	STATE_MODET_MAP,
+	STATE_UNPARSED,
+};
+
+struct go7007 {
+	struct device *dev;
+	u8 bus_info[32];
+	const struct go7007_board_info *board_info;
+	unsigned int board_id;
+	int tuner_type;
+	int channel_number; /* for multi-channel boards like Adlink PCI-MPG24 */
+	char name[64];
+	struct video_device vdev;
+	void *boot_fw;
+	unsigned boot_fw_len;
+	struct v4l2_device v4l2_dev;
+	struct v4l2_ctrl_handler hdl;
+	struct v4l2_ctrl *mpeg_video_encoding;
+	struct v4l2_ctrl *mpeg_video_gop_size;
+	struct v4l2_ctrl *mpeg_video_gop_closure;
+	struct v4l2_ctrl *mpeg_video_bitrate;
+	struct v4l2_ctrl *mpeg_video_aspect_ratio;
+	struct v4l2_ctrl *mpeg_video_b_frames;
+	struct v4l2_ctrl *mpeg_video_rep_seqheader;
+	struct v4l2_ctrl *modet_mode;
+	enum { STATUS_INIT, STATUS_ONLINE, STATUS_SHUTDOWN } status;
+	spinlock_t spinlock;
+	struct mutex hw_lock;
+	struct mutex serialize_lock;
+	int audio_enabled;
+	struct v4l2_subdev *sd_video;
+	struct v4l2_subdev *sd_audio;
+	u8 usb_buf[16];
+
+	/* Video input */
+	int input;
+	int aud_input;
+	enum { GO7007_STD_NTSC, GO7007_STD_PAL, GO7007_STD_OTHER } standard;
+	v4l2_std_id std;
+	int sensor_framerate;
+	int width;
+	int height;
+	int encoder_h_offset;
+	int encoder_v_offset;
+	unsigned int encoder_h_halve:1;
+	unsigned int encoder_v_halve:1;
+	unsigned int encoder_subsample:1;
+
+	/* Encoder config */
+	u32 format;
+	int bitrate;
+	int fps_scale;
+	int pali;
+	int aspect_ratio;
+	int gop_size;
+	unsigned int ipb:1;
+	unsigned int closed_gop:1;
+	unsigned int repeat_seqhead:1;
+	unsigned int seq_header_enable:1;
+	unsigned int gop_header_enable:1;
+	unsigned int dvd_mode:1;
+	unsigned int interlace_coding:1;
+
+	/* Motion detection */
+	unsigned int modet_enable:1;
+	struct {
+		unsigned int enable:1;
+		int pixel_threshold;
+		int motion_threshold;
+		int mb_threshold;
+	} modet[4];
+	unsigned char modet_map[1624];
+	unsigned char active_map[216];
+	u32 modet_event_status;
+
+	/* Video streaming */
+	struct mutex queue_lock;
+	struct vb2_queue vidq;
+	enum go7007_parser_state state;
+	int parse_length;
+	u16 modet_word;
+	int seen_frame;
+	u32 next_seq;
+	struct list_head vidq_active;
+	wait_queue_head_t frame_waitq;
+	struct go7007_buffer *active_buf;
+
+	/* Audio streaming */
+	void (*audio_deliver)(struct go7007 *go, u8 *buf, int length);
+	void *snd_context;
+
+	/* I2C */
+	int i2c_adapter_online;
+	struct i2c_adapter i2c_adapter;
+
+	/* HPI driver */
+	struct go7007_hpi_ops *hpi_ops;
+	void *hpi_context;
+	int interrupt_available;
+	wait_queue_head_t interrupt_waitq;
+	unsigned short interrupt_value;
+	unsigned short interrupt_data;
+};
+
+static inline struct go7007 *to_go7007(struct v4l2_device *v4l2_dev)
+{
+	return container_of(v4l2_dev, struct go7007, v4l2_dev);
+}
+
+/* All of these must be called with the hpi_lock mutex held! */
+#define go7007_interface_reset(go) \
+			((go)->hpi_ops->interface_reset(go))
+#define	go7007_write_interrupt(go, x, y) \
+			((go)->hpi_ops->write_interrupt)((go), (x), (y))
+#define go7007_stream_start(go) \
+			((go)->hpi_ops->stream_start(go))
+#define go7007_stream_stop(go) \
+			((go)->hpi_ops->stream_stop(go))
+#define	go7007_send_firmware(go, x, y) \
+			((go)->hpi_ops->send_firmware)((go), (x), (y))
+#define go7007_write_addr(go, x, y) \
+			((go)->hpi_ops->write_interrupt)((go), (x)|0x8000, (y))
+
+/* go7007-driver.c */
+int go7007_read_addr(struct go7007 *go, u16 addr, u16 *data);
+int go7007_read_interrupt(struct go7007 *go, u16 *value, u16 *data);
+int go7007_boot_encoder(struct go7007 *go, int init_i2c);
+int go7007_reset_encoder(struct go7007 *go);
+int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs);
+int go7007_start_encoder(struct go7007 *go);
+void go7007_parse_video_stream(struct go7007 *go, u8 *buf, int length);
+struct go7007 *go7007_alloc(const struct go7007_board_info *board,
+					struct device *dev);
+void go7007_update_board(struct go7007 *go);
+
+/* go7007-fw.c */
+int go7007_construct_fw_image(struct go7007 *go, u8 **fw, int *fwlen);
+
+/* go7007-i2c.c */
+int go7007_i2c_init(struct go7007 *go);
+int go7007_i2c_remove(struct go7007 *go);
+
+/* go7007-v4l2.c */
+int go7007_v4l2_init(struct go7007 *go);
+int go7007_v4l2_ctrl_init(struct go7007 *go);
+void go7007_v4l2_remove(struct go7007 *go);
+
+/* snd-go7007.c */
+int go7007_snd_init(struct go7007 *go);
+int go7007_snd_remove(struct go7007 *go);

drivers/media/usb/go7007/s2250-board.c

@@ -0,0 +1,628 @@
+/*
+ * Copyright (C) 2008 Sensoray Company Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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/module.h>
+#include <linux/usb.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <linux/slab.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-subdev.h>
+#include "go7007-priv.h"
+
+MODULE_DESCRIPTION("Sensoray 2250/2251 i2c v4l2 subdev driver");
+MODULE_LICENSE("GPL v2");
+
+/*
+ * Note: this board has two i2c devices: a vpx3226f and a tlv320aic23b.
+ * Due to the unusual way these are accessed on this device we do not
+ * reuse the i2c drivers, but instead they are implemented in this
+ * driver. It would be nice to improve on this, though.
+ */
+
+#define TLV320_ADDRESS      0x34
+#define VPX322_ADDR_ANALOGCONTROL1	0x02
+#define VPX322_ADDR_BRIGHTNESS0		0x0127
+#define VPX322_ADDR_BRIGHTNESS1		0x0131
+#define VPX322_ADDR_CONTRAST0		0x0128
+#define VPX322_ADDR_CONTRAST1		0x0132
+#define VPX322_ADDR_HUE			0x00dc
+#define VPX322_ADDR_SAT			0x0030
+
+struct go7007_usb_board {
+	unsigned int flags;
+	struct go7007_board_info main_info;
+};
+
+struct go7007_usb {
+	struct go7007_usb_board *board;
+	struct mutex i2c_lock;
+	struct usb_device *usbdev;
+	struct urb *video_urbs[8];
+	struct urb *audio_urbs[8];
+	struct urb *intr_urb;
+};
+
+static unsigned char aud_regs[] = {
+	0x1e, 0x00,
+	0x00, 0x17,
+	0x02, 0x17,
+	0x04, 0xf9,
+	0x06, 0xf9,
+	0x08, 0x02,
+	0x0a, 0x00,
+	0x0c, 0x00,
+	0x0a, 0x00,
+	0x0c, 0x00,
+	0x0e, 0x02,
+	0x10, 0x00,
+	0x12, 0x01,
+	0x00, 0x00,
+};
+
+
+static unsigned char vid_regs[] = {
+	0xF2, 0x0f,
+	0xAA, 0x00,
+	0xF8, 0xff,
+	0x00, 0x00,
+};
+
+static u16 vid_regs_fp[] = {
+	0x028, 0x067,
+	0x120, 0x016,
+	0x121, 0xcF2,
+	0x122, 0x0F2,
+	0x123, 0x00c,
+	0x124, 0x2d0,
+	0x125, 0x2e0,
+	0x126, 0x004,
+	0x128, 0x1E0,
+	0x12A, 0x016,
+	0x12B, 0x0F2,
+	0x12C, 0x0F2,
+	0x12D, 0x00c,
+	0x12E, 0x2d0,
+	0x12F, 0x2e0,
+	0x130, 0x004,
+	0x132, 0x1E0,
+	0x140, 0x060,
+	0x153, 0x00C,
+	0x154, 0x200,
+	0x150, 0x801,
+	0x000, 0x000
+};
+
+/* PAL specific values */
+static u16 vid_regs_fp_pal[] = {
+	0x120, 0x017,
+	0x121, 0xd22,
+	0x122, 0x122,
+	0x12A, 0x017,
+	0x12B, 0x122,
+	0x12C, 0x122,
+	0x140, 0x060,
+	0x000, 0x000,
+};
+
+struct s2250 {
+	struct v4l2_subdev sd;
+	struct v4l2_ctrl_handler hdl;
+	v4l2_std_id std;
+	int input;
+	int brightness;
+	int contrast;
+	int saturation;
+	int hue;
+	int reg12b_val;
+	int audio_input;
+	struct i2c_client *audio;
+};
+
+static inline struct s2250 *to_state(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct s2250, sd);
+}
+
+/* from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
+static int go7007_usb_vendor_request(struct go7007 *go, u16 request,
+	u16 value, u16 index, void *transfer_buffer, int length, int in)
+{
+	struct go7007_usb *usb = go->hpi_context;
+	int timeout = 5000;
+
+	if (in) {
+		return usb_control_msg(usb->usbdev,
+				usb_rcvctrlpipe(usb->usbdev, 0), request,
+				USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+				value, index, transfer_buffer, length, timeout);
+	} else {
+		return usb_control_msg(usb->usbdev,
+				usb_sndctrlpipe(usb->usbdev, 0), request,
+				USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+				value, index, transfer_buffer, length, timeout);
+	}
+}
+/* end from go7007-usb.c which is Copyright (C) 2005-2006 Micronas USA Inc.*/
+
+static int write_reg(struct i2c_client *client, u8 reg, u8 value)
+{
+	struct go7007 *go = i2c_get_adapdata(client->adapter);
+	struct go7007_usb *usb;
+	int rc;
+	int dev_addr = client->addr << 1;  /* firmware wants 8-bit address */
+	u8 *buf;
+
+	if (go == NULL)
+		return -ENODEV;
+
+	if (go->status == STATUS_SHUTDOWN)
+		return -EBUSY;
+
+	buf = kzalloc(16, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	usb = go->hpi_context;
+	if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
+		dev_info(&client->dev, "i2c lock failed\n");
+		kfree(buf);
+		return -EINTR;
+	}
+	rc = go7007_usb_vendor_request(go, 0x55, dev_addr,
+				       (reg<<8 | value),
+				       buf,
+				       16, 1);
+
+	mutex_unlock(&usb->i2c_lock);
+	kfree(buf);
+	return rc;
+}
+
+static int write_reg_fp(struct i2c_client *client, u16 addr, u16 val)
+{
+	struct go7007 *go = i2c_get_adapdata(client->adapter);
+	struct go7007_usb *usb;
+	int rc;
+	u8 *buf;
+	struct s2250 *dec = i2c_get_clientdata(client);
+
+	if (go == NULL)
+		return -ENODEV;
+
+	if (go->status == STATUS_SHUTDOWN)
+		return -EBUSY;
+
+	buf = kzalloc(16, GFP_KERNEL);
+
+	if (buf == NULL)
+		return -ENOMEM;
+
+
+
+	memset(buf, 0xcd, 6);
+
+	usb = go->hpi_context;
+	if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
+		dev_info(&client->dev, "i2c lock failed\n");
+		kfree(buf);
+		return -EINTR;
+	}
+	rc = go7007_usb_vendor_request(go, 0x57, addr, val, buf, 16, 1);
+	mutex_unlock(&usb->i2c_lock);
+	if (rc < 0) {
+		kfree(buf);
+		return rc;
+	}
+
+	if (buf[0] == 0) {
+		unsigned int subaddr, val_read;
+
+		subaddr = (buf[4] << 8) + buf[5];
+		val_read = (buf[2] << 8) + buf[3];
+		kfree(buf);
+		if (val_read != val) {
+			dev_info(&client->dev, "invalid fp write %x %x\n",
+				 val_read, val);
+			return -EFAULT;
+		}
+		if (subaddr != addr) {
+			dev_info(&client->dev, "invalid fp write addr %x %x\n",
+				 subaddr, addr);
+			return -EFAULT;
+		}
+	} else {
+		kfree(buf);
+		return -EFAULT;
+	}
+
+	/* save last 12b value */
+	if (addr == 0x12b)
+		dec->reg12b_val = val;
+
+	return 0;
+}
+
+static int read_reg_fp(struct i2c_client *client, u16 addr, u16 *val)
+{
+	struct go7007 *go = i2c_get_adapdata(client->adapter);
+	struct go7007_usb *usb;
+	int rc;
+	u8 *buf;
+
+	if (go == NULL)
+		return -ENODEV;
+
+	if (go->status == STATUS_SHUTDOWN)
+		return -EBUSY;
+
+	buf = kzalloc(16, GFP_KERNEL);
+
+	if (buf == NULL)
+		return -ENOMEM;
+
+
+
+	memset(buf, 0xcd, 6);
+	usb = go->hpi_context;
+	if (mutex_lock_interruptible(&usb->i2c_lock) != 0) {
+		dev_info(&client->dev, "i2c lock failed\n");
+		kfree(buf);
+		return -EINTR;
+	}
+	rc = go7007_usb_vendor_request(go, 0x58, addr, 0, buf, 16, 1);
+	mutex_unlock(&usb->i2c_lock);
+	if (rc < 0) {
+		kfree(buf);
+		return rc;
+	}
+
+	*val = (buf[0] << 8) | buf[1];
+	kfree(buf);
+
+	return 0;
+}
+
+
+static int write_regs(struct i2c_client *client, u8 *regs)
+{
+	int i;
+
+	for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
+		if (write_reg(client, regs[i], regs[i+1]) < 0) {
+			dev_info(&client->dev, "failed\n");
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static int write_regs_fp(struct i2c_client *client, u16 *regs)
+{
+	int i;
+
+	for (i = 0; !((regs[i] == 0x00) && (regs[i+1] == 0x00)); i += 2) {
+		if (write_reg_fp(client, regs[i], regs[i+1]) < 0) {
+			dev_info(&client->dev, "failed fp\n");
+			return -1;
+		}
+	}
+	return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+static int s2250_s_video_routing(struct v4l2_subdev *sd, u32 input, u32 output,
+				 u32 config)
+{
+	struct s2250 *state = to_state(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int vidsys;
+
+	vidsys = (state->std == V4L2_STD_NTSC) ? 0x01 : 0x00;
+	if (input == 0) {
+		/* composite */
+		write_reg_fp(client, 0x20, 0x020 | vidsys);
+		write_reg_fp(client, 0x21, 0x662);
+		write_reg_fp(client, 0x140, 0x060);
+	} else if (input == 1) {
+		/* S-Video */
+		write_reg_fp(client, 0x20, 0x040 | vidsys);
+		write_reg_fp(client, 0x21, 0x666);
+		write_reg_fp(client, 0x140, 0x060);
+	} else {
+		return -EINVAL;
+	}
+	state->input = input;
+	return 0;
+}
+
+static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
+{
+	struct s2250 *state = to_state(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	u16 vidsource;
+
+	vidsource = (state->input == 1) ? 0x040 : 0x020;
+	if (norm & V4L2_STD_625_50) {
+		write_regs_fp(client, vid_regs_fp);
+		write_regs_fp(client, vid_regs_fp_pal);
+		write_reg_fp(client, 0x20, vidsource);
+	} else {
+		write_regs_fp(client, vid_regs_fp);
+		write_reg_fp(client, 0x20, vidsource | 1);
+	}
+	state->std = norm;
+	return 0;
+}
+
+static int s2250_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct s2250 *state = container_of(ctrl->handler, struct s2250, hdl);
+	struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
+	u16 oldvalue;
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		read_reg_fp(client, VPX322_ADDR_BRIGHTNESS0, &oldvalue);
+		write_reg_fp(client, VPX322_ADDR_BRIGHTNESS0,
+			     ctrl->val | (oldvalue & ~0xff));
+		read_reg_fp(client, VPX322_ADDR_BRIGHTNESS1, &oldvalue);
+		write_reg_fp(client, VPX322_ADDR_BRIGHTNESS1,
+			     ctrl->val | (oldvalue & ~0xff));
+		write_reg_fp(client, 0x140, 0x60);
+		break;
+	case V4L2_CID_CONTRAST:
+		read_reg_fp(client, VPX322_ADDR_CONTRAST0, &oldvalue);
+		write_reg_fp(client, VPX322_ADDR_CONTRAST0,
+			     ctrl->val | (oldvalue & ~0x3f));
+		read_reg_fp(client, VPX322_ADDR_CONTRAST1, &oldvalue);
+		write_reg_fp(client, VPX322_ADDR_CONTRAST1,
+			     ctrl->val | (oldvalue & ~0x3f));
+		write_reg_fp(client, 0x140, 0x60);
+		break;
+	case V4L2_CID_SATURATION:
+		write_reg_fp(client, VPX322_ADDR_SAT, ctrl->val);
+		break;
+	case V4L2_CID_HUE:
+		write_reg_fp(client, VPX322_ADDR_HUE, ctrl->val);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int s2250_s_mbus_fmt(struct v4l2_subdev *sd,
+			struct v4l2_mbus_framefmt *fmt)
+{
+	struct s2250 *state = to_state(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	if (fmt->height < 640) {
+		write_reg_fp(client, 0x12b, state->reg12b_val | 0x400);
+		write_reg_fp(client, 0x140, 0x060);
+	} else {
+		write_reg_fp(client, 0x12b, state->reg12b_val & ~0x400);
+		write_reg_fp(client, 0x140, 0x060);
+	}
+	return 0;
+}
+
+static int s2250_s_audio_routing(struct v4l2_subdev *sd, u32 input, u32 output,
+				 u32 config)
+{
+	struct s2250 *state = to_state(sd);
+
+	switch (input) {
+	case 0:
+		write_reg(state->audio, 0x08, 0x02); /* Line In */
+		break;
+	case 1:
+		write_reg(state->audio, 0x08, 0x04); /* Mic */
+		break;
+	case 2:
+		write_reg(state->audio, 0x08, 0x05); /* Mic Boost */
+		break;
+	default:
+		return -EINVAL;
+	}
+	state->audio_input = input;
+	return 0;
+}
+
+
+static int s2250_log_status(struct v4l2_subdev *sd)
+{
+	struct s2250 *state = to_state(sd);
+
+	v4l2_info(sd, "Standard: %s\n", state->std == V4L2_STD_NTSC ? "NTSC" :
+					state->std == V4L2_STD_PAL ? "PAL" :
+					state->std == V4L2_STD_SECAM ? "SECAM" :
+					"unknown");
+	v4l2_info(sd, "Input: %s\n", state->input == 0 ? "Composite" :
+					state->input == 1 ? "S-video" :
+					"error");
+	v4l2_info(sd, "Audio input: %s\n", state->audio_input == 0 ? "Line In" :
+					state->audio_input == 1 ? "Mic" :
+					state->audio_input == 2 ? "Mic Boost" :
+					"error");
+	return v4l2_ctrl_subdev_log_status(sd);
+}
+
+/* --------------------------------------------------------------------------*/
+
+static const struct v4l2_ctrl_ops s2250_ctrl_ops = {
+	.s_ctrl = s2250_s_ctrl,
+};
+
+static const struct v4l2_subdev_core_ops s2250_core_ops = {
+	.log_status = s2250_log_status,
+};
+
+static const struct v4l2_subdev_audio_ops s2250_audio_ops = {
+	.s_routing = s2250_s_audio_routing,
+};
+
+static const struct v4l2_subdev_video_ops s2250_video_ops = {
+	.s_std = s2250_s_std,
+	.s_routing = s2250_s_video_routing,
+	.s_mbus_fmt = s2250_s_mbus_fmt,
+};
+
+static const struct v4l2_subdev_ops s2250_ops = {
+	.core = &s2250_core_ops,
+	.audio = &s2250_audio_ops,
+	.video = &s2250_video_ops,
+};
+
+/* --------------------------------------------------------------------------*/
+
+static int s2250_probe(struct i2c_client *client,
+		       const struct i2c_device_id *id)
+{
+	struct i2c_client *audio;
+	struct i2c_adapter *adapter = client->adapter;
+	struct s2250 *state;
+	struct v4l2_subdev *sd;
+	u8 *data;
+	struct go7007 *go = i2c_get_adapdata(adapter);
+	struct go7007_usb *usb = go->hpi_context;
+
+	audio = i2c_new_dummy(adapter, TLV320_ADDRESS >> 1);
+	if (audio == NULL)
+		return -ENOMEM;
+
+	state = kzalloc(sizeof(struct s2250), GFP_KERNEL);
+	if (state == NULL) {
+		i2c_unregister_device(audio);
+		return -ENOMEM;
+	}
+
+	sd = &state->sd;
+	v4l2_i2c_subdev_init(sd, client, &s2250_ops);
+
+	v4l2_info(sd, "initializing %s at address 0x%x on %s\n",
+	       "Sensoray 2250/2251", client->addr, client->adapter->name);
+
+	v4l2_ctrl_handler_init(&state->hdl, 4);
+	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
+		V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
+	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
+		V4L2_CID_CONTRAST, 0, 0x3f, 1, 0x32);
+	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
+		V4L2_CID_SATURATION, 0, 4094, 1, 2070);
+	v4l2_ctrl_new_std(&state->hdl, &s2250_ctrl_ops,
+		V4L2_CID_HUE, -512, 511, 1, 0);
+	sd->ctrl_handler = &state->hdl;
+	if (state->hdl.error) {
+		int err = state->hdl.error;
+
+		v4l2_ctrl_handler_free(&state->hdl);
+		kfree(state);
+		return err;
+	}
+
+	state->std = V4L2_STD_NTSC;
+	state->brightness = 50;
+	state->contrast = 50;
+	state->saturation = 50;
+	state->hue = 0;
+	state->audio = audio;
+
+	/* initialize the audio */
+	if (write_regs(audio, aud_regs) < 0) {
+		dev_err(&client->dev, "error initializing audio\n");
+		goto fail;
+	}
+
+	if (write_regs(client, vid_regs) < 0) {
+		dev_err(&client->dev, "error initializing decoder\n");
+		goto fail;
+	}
+	if (write_regs_fp(client, vid_regs_fp) < 0) {
+		dev_err(&client->dev, "error initializing decoder\n");
+		goto fail;
+	}
+	/* set default channel */
+	/* composite */
+	write_reg_fp(client, 0x20, 0x020 | 1);
+	write_reg_fp(client, 0x21, 0x662);
+	write_reg_fp(client, 0x140, 0x060);
+
+	/* set default audio input */
+	state->audio_input = 0;
+	write_reg(client, 0x08, 0x02); /* Line In */
+
+	if (mutex_lock_interruptible(&usb->i2c_lock) == 0) {
+		data = kzalloc(16, GFP_KERNEL);
+		if (data != NULL) {
+			int rc = go7007_usb_vendor_request(go, 0x41, 0, 0,
+						       data, 16, 1);
+
+			if (rc > 0) {
+				u8 mask;
+
+				data[0] = 0;
+				mask = 1<<5;
+				data[0] &= ~mask;
+				data[1] |= mask;
+				go7007_usb_vendor_request(go, 0x40, 0,
+							  (data[1]<<8)
+							  + data[1],
+							  data, 16, 0);
+			}
+			kfree(data);
+		}
+		mutex_unlock(&usb->i2c_lock);
+	}
+
+	v4l2_info(sd, "initialized successfully\n");
+	return 0;
+
+fail:
+	i2c_unregister_device(audio);
+	v4l2_ctrl_handler_free(&state->hdl);
+	kfree(state);
+	return -EIO;
+}
+
+static int s2250_remove(struct i2c_client *client)
+{
+	struct s2250 *state = to_state(i2c_get_clientdata(client));
+
+	v4l2_device_unregister_subdev(&state->sd);
+	v4l2_ctrl_handler_free(&state->hdl);
+	kfree(state);
+	return 0;
+}
+
+static const struct i2c_device_id s2250_id[] = {
+	{ "s2250", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, s2250_id);
+
+static struct i2c_driver s2250_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "s2250",
+	},
+	.probe		= s2250_probe,
+	.remove		= s2250_remove,
+	.id_table	= s2250_id,
+};
+
+module_i2c_driver(s2250_driver);

drivers/media/usb/go7007/snd-go7007.c

@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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/module.h>
+#include <linux/moduleparam.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/vmalloc.h>
+#include <linux/time.h>
+#include <linux/mm.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/initval.h>
+
+#include "go7007-priv.h"
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+module_param_array(id, charp, NULL, 0444);
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for the go7007 audio driver");
+MODULE_PARM_DESC(id, "ID string for the go7007 audio driver");
+MODULE_PARM_DESC(enable, "Enable for the go7007 audio driver");
+
+struct go7007_snd {
+	struct snd_card *card;
+	struct snd_pcm *pcm;
+	struct snd_pcm_substream *substream;
+	spinlock_t lock;
+	int w_idx;
+	int hw_ptr;
+	int avail;
+	int capturing;
+};
+
+static struct snd_pcm_hardware go7007_snd_capture_hw = {
+	.info			= (SNDRV_PCM_INFO_MMAP |
+					SNDRV_PCM_INFO_INTERLEAVED |
+					SNDRV_PCM_INFO_BLOCK_TRANSFER |
+					SNDRV_PCM_INFO_MMAP_VALID),
+	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
+	.rates			= SNDRV_PCM_RATE_48000,
+	.rate_min		= 48000,
+	.rate_max		= 48000,
+	.channels_min		= 2,
+	.channels_max		= 2,
+	.buffer_bytes_max	= (128*1024),
+	.period_bytes_min	= 4096,
+	.period_bytes_max	= (128*1024),
+	.periods_min		= 1,
+	.periods_max		= 32,
+};
+
+static void parse_audio_stream_data(struct go7007 *go, u8 *buf, int length)
+{
+	struct go7007_snd *gosnd = go->snd_context;
+	struct snd_pcm_runtime *runtime = gosnd->substream->runtime;
+	int frames = bytes_to_frames(runtime, length);
+
+	spin_lock(&gosnd->lock);
+	gosnd->hw_ptr += frames;
+	if (gosnd->hw_ptr >= runtime->buffer_size)
+		gosnd->hw_ptr -= runtime->buffer_size;
+	gosnd->avail += frames;
+	spin_unlock(&gosnd->lock);
+	if (gosnd->w_idx + length > runtime->dma_bytes) {
+		int cpy = runtime->dma_bytes - gosnd->w_idx;
+
+		memcpy(runtime->dma_area + gosnd->w_idx, buf, cpy);
+		length -= cpy;
+		buf += cpy;
+		gosnd->w_idx = 0;
+	}
+	memcpy(runtime->dma_area + gosnd->w_idx, buf, length);
+	gosnd->w_idx += length;
+	spin_lock(&gosnd->lock);
+	if (gosnd->avail < runtime->period_size) {
+		spin_unlock(&gosnd->lock);
+		return;
+	}
+	gosnd->avail -= runtime->period_size;
+	spin_unlock(&gosnd->lock);
+	if (gosnd->capturing)
+		snd_pcm_period_elapsed(gosnd->substream);
+}
+
+static int go7007_snd_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *hw_params)
+{
+	struct go7007 *go = snd_pcm_substream_chip(substream);
+	unsigned int bytes;
+
+	bytes = params_buffer_bytes(hw_params);
+	if (substream->runtime->dma_bytes > 0)
+		vfree(substream->runtime->dma_area);
+	substream->runtime->dma_bytes = 0;
+	substream->runtime->dma_area = vmalloc(bytes);
+	if (substream->runtime->dma_area == NULL)
+		return -ENOMEM;
+	substream->runtime->dma_bytes = bytes;
+	go->audio_deliver = parse_audio_stream_data;
+	return 0;
+}
+
+static int go7007_snd_hw_free(struct snd_pcm_substream *substream)
+{
+	struct go7007 *go = snd_pcm_substream_chip(substream);
+
+	go->audio_deliver = NULL;
+	if (substream->runtime->dma_bytes > 0)
+		vfree(substream->runtime->dma_area);
+	substream->runtime->dma_bytes = 0;
+	return 0;
+}
+
+static int go7007_snd_capture_open(struct snd_pcm_substream *substream)
+{
+	struct go7007 *go = snd_pcm_substream_chip(substream);
+	struct go7007_snd *gosnd = go->snd_context;
+	unsigned long flags;
+	int r;
+
+	spin_lock_irqsave(&gosnd->lock, flags);
+	if (gosnd->substream == NULL) {
+		gosnd->substream = substream;
+		substream->runtime->hw = go7007_snd_capture_hw;
+		r = 0;
+	} else
+		r = -EBUSY;
+	spin_unlock_irqrestore(&gosnd->lock, flags);
+	return r;
+}
+
+static int go7007_snd_capture_close(struct snd_pcm_substream *substream)
+{
+	struct go7007 *go = snd_pcm_substream_chip(substream);
+	struct go7007_snd *gosnd = go->snd_context;
+
+	gosnd->substream = NULL;
+	return 0;
+}
+
+static int go7007_snd_pcm_prepare(struct snd_pcm_substream *substream)
+{
+	return 0;
+}
+
+static int go7007_snd_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct go7007 *go = snd_pcm_substream_chip(substream);
+	struct go7007_snd *gosnd = go->snd_context;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		/* Just set a flag to indicate we should signal ALSA when
+		 * sound comes in */
+		gosnd->capturing = 1;
+		return 0;
+	case SNDRV_PCM_TRIGGER_STOP:
+		gosnd->hw_ptr = gosnd->w_idx = gosnd->avail = 0;
+		gosnd->capturing = 0;
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+static snd_pcm_uframes_t go7007_snd_pcm_pointer(struct snd_pcm_substream *substream)
+{
+	struct go7007 *go = snd_pcm_substream_chip(substream);
+	struct go7007_snd *gosnd = go->snd_context;
+
+	return gosnd->hw_ptr;
+}
+
+static struct page *go7007_snd_pcm_page(struct snd_pcm_substream *substream,
+					unsigned long offset)
+{
+	return vmalloc_to_page(substream->runtime->dma_area + offset);
+}
+
+static struct snd_pcm_ops go7007_snd_capture_ops = {
+	.open		= go7007_snd_capture_open,
+	.close		= go7007_snd_capture_close,
+	.ioctl		= snd_pcm_lib_ioctl,
+	.hw_params	= go7007_snd_hw_params,
+	.hw_free	= go7007_snd_hw_free,
+	.prepare	= go7007_snd_pcm_prepare,
+	.trigger	= go7007_snd_pcm_trigger,
+	.pointer	= go7007_snd_pcm_pointer,
+	.page		= go7007_snd_pcm_page,
+};
+
+static int go7007_snd_free(struct snd_device *device)
+{
+	struct go7007 *go = device->device_data;
+
+	kfree(go->snd_context);
+	go->snd_context = NULL;
+	return 0;
+}
+
+static struct snd_device_ops go7007_snd_device_ops = {
+	.dev_free	= go7007_snd_free,
+};
+
+int go7007_snd_init(struct go7007 *go)
+{
+	static int dev;
+	struct go7007_snd *gosnd;
+	int ret = 0;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+	gosnd = kmalloc(sizeof(struct go7007_snd), GFP_KERNEL);
+	if (gosnd == NULL)
+		return -ENOMEM;
+	spin_lock_init(&gosnd->lock);
+	gosnd->hw_ptr = gosnd->w_idx = gosnd->avail = 0;
+	gosnd->capturing = 0;
+	ret = snd_card_new(go->dev, index[dev], id[dev], THIS_MODULE, 0,
+			   &gosnd->card);
+	if (ret < 0) {
+		kfree(gosnd);
+		return ret;
+	}
+	ret = snd_device_new(gosnd->card, SNDRV_DEV_LOWLEVEL, go,
+			&go7007_snd_device_ops);
+	if (ret < 0) {
+		kfree(gosnd);
+		return ret;
+	}
+	ret = snd_pcm_new(gosnd->card, "go7007", 0, 0, 1, &gosnd->pcm);
+	if (ret < 0) {
+		snd_card_free(gosnd->card);
+		kfree(gosnd);
+		return ret;
+	}
+	strlcpy(gosnd->card->driver, "go7007", sizeof(gosnd->card->driver));
+	strlcpy(gosnd->card->shortname, go->name, sizeof(gosnd->card->driver));
+	strlcpy(gosnd->card->longname, gosnd->card->shortname,
+			sizeof(gosnd->card->longname));
+
+	gosnd->pcm->private_data = go;
+	snd_pcm_set_ops(gosnd->pcm, SNDRV_PCM_STREAM_CAPTURE,
+			&go7007_snd_capture_ops);
+
+	ret = snd_card_register(gosnd->card);
+	if (ret < 0) {
+		snd_card_free(gosnd->card);
+		kfree(gosnd);
+		return ret;
+	}
+
+	gosnd->substream = NULL;
+	go->snd_context = gosnd;
+	v4l2_device_get(&go->v4l2_dev);
+	++dev;
+
+	return 0;
+}
+EXPORT_SYMBOL(go7007_snd_init);
+
+int go7007_snd_remove(struct go7007 *go)
+{
+	struct go7007_snd *gosnd = go->snd_context;
+
+	snd_card_disconnect(gosnd->card);
+	snd_card_free_when_closed(gosnd->card);
+	v4l2_device_put(&go->v4l2_dev);
+	return 0;
+}
+EXPORT_SYMBOL(go7007_snd_remove);
+
+MODULE_LICENSE("GPL v2");