mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-10-31 08:08:51 +01:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
739
drivers/media/usb/gspca/se401.c
Normal file
739
drivers/media/usb/gspca/se401.c
Normal file
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@ -0,0 +1,739 @@
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/*
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* GSPCA Endpoints (formerly known as AOX) se401 USB Camera sub Driver
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*
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* Copyright (C) 2011 Hans de Goede <hdegoede@redhat.com>
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*
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* Based on the v4l1 se401 driver which is:
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*
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* Copyright (c) 2000 Jeroen B. Vreeken (pe1rxq@amsat.org)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define MODULE_NAME "se401"
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#define BULK_SIZE 4096
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#define PACKET_SIZE 1024
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#define READ_REQ_SIZE 64
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#define MAX_MODES ((READ_REQ_SIZE - 6) / 4)
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/* The se401 compression algorithm uses a fixed quant factor, which
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can be configured by setting the high nibble of the SE401_OPERATINGMODE
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feature. This needs to exactly match what is in libv4l! */
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#define SE401_QUANT_FACT 8
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#include <linux/input.h>
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#include <linux/slab.h>
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#include "gspca.h"
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#include "se401.h"
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MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
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MODULE_DESCRIPTION("Endpoints se401");
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MODULE_LICENSE("GPL");
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/* exposure change state machine states */
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enum {
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EXPO_CHANGED,
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EXPO_DROP_FRAME,
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EXPO_NO_CHANGE,
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};
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/* specific webcam descriptor */
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struct sd {
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struct gspca_dev gspca_dev; /* !! must be the first item */
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struct { /* exposure/freq control cluster */
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struct v4l2_ctrl *exposure;
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struct v4l2_ctrl *freq;
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};
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bool has_brightness;
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struct v4l2_pix_format fmts[MAX_MODES];
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int pixels_read;
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int packet_read;
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u8 packet[PACKET_SIZE];
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u8 restart_stream;
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u8 button_state;
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u8 resetlevel;
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u8 resetlevel_frame_count;
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int resetlevel_adjust_dir;
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int expo_change_state;
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};
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static void se401_write_req(struct gspca_dev *gspca_dev, u16 req, u16 value,
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int silent)
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{
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int err;
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if (gspca_dev->usb_err < 0)
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return;
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err = usb_control_msg(gspca_dev->dev,
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usb_sndctrlpipe(gspca_dev->dev, 0), req,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value, 0, NULL, 0, 1000);
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if (err < 0) {
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if (!silent)
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pr_err("write req failed req %#04x val %#04x error %d\n",
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req, value, err);
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gspca_dev->usb_err = err;
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}
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}
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static void se401_read_req(struct gspca_dev *gspca_dev, u16 req, int silent)
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{
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int err;
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if (gspca_dev->usb_err < 0)
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return;
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if (USB_BUF_SZ < READ_REQ_SIZE) {
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pr_err("USB_BUF_SZ too small!!\n");
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gspca_dev->usb_err = -ENOBUFS;
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return;
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}
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err = usb_control_msg(gspca_dev->dev,
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usb_rcvctrlpipe(gspca_dev->dev, 0), req,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0, 0, gspca_dev->usb_buf, READ_REQ_SIZE, 1000);
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if (err < 0) {
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if (!silent)
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pr_err("read req failed req %#04x error %d\n",
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req, err);
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gspca_dev->usb_err = err;
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}
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}
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static void se401_set_feature(struct gspca_dev *gspca_dev,
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u16 selector, u16 param)
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{
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int err;
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if (gspca_dev->usb_err < 0)
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return;
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err = usb_control_msg(gspca_dev->dev,
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usb_sndctrlpipe(gspca_dev->dev, 0),
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SE401_REQ_SET_EXT_FEATURE,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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param, selector, NULL, 0, 1000);
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if (err < 0) {
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pr_err("set feature failed sel %#04x param %#04x error %d\n",
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selector, param, err);
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gspca_dev->usb_err = err;
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}
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}
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static int se401_get_feature(struct gspca_dev *gspca_dev, u16 selector)
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{
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int err;
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if (gspca_dev->usb_err < 0)
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return gspca_dev->usb_err;
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if (USB_BUF_SZ < 2) {
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pr_err("USB_BUF_SZ too small!!\n");
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gspca_dev->usb_err = -ENOBUFS;
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return gspca_dev->usb_err;
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}
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err = usb_control_msg(gspca_dev->dev,
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usb_rcvctrlpipe(gspca_dev->dev, 0),
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SE401_REQ_GET_EXT_FEATURE,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0, selector, gspca_dev->usb_buf, 2, 1000);
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if (err < 0) {
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pr_err("get feature failed sel %#04x error %d\n",
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selector, err);
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gspca_dev->usb_err = err;
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return err;
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}
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return gspca_dev->usb_buf[0] | (gspca_dev->usb_buf[1] << 8);
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}
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static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
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{
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/* HDG: this does not seem to do anything on my cam */
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se401_write_req(gspca_dev, SE401_REQ_SET_BRT, val, 0);
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}
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static void setgain(struct gspca_dev *gspca_dev, s32 val)
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{
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u16 gain = 63 - val;
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/* red color gain */
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se401_set_feature(gspca_dev, HV7131_REG_ARCG, gain);
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/* green color gain */
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se401_set_feature(gspca_dev, HV7131_REG_AGCG, gain);
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/* blue color gain */
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se401_set_feature(gspca_dev, HV7131_REG_ABCG, gain);
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}
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static void setexposure(struct gspca_dev *gspca_dev, s32 val, s32 freq)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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int integration = val << 6;
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u8 expose_h, expose_m, expose_l;
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/* Do this before the set_feature calls, for proper timing wrt
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the interrupt driven pkt_scan. Note we may still race but that
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is not a big issue, the expo change state machine is merely for
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avoiding underexposed frames getting send out, if one sneaks
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through so be it */
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sd->expo_change_state = EXPO_CHANGED;
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if (freq == V4L2_CID_POWER_LINE_FREQUENCY_50HZ)
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integration = integration - integration % 106667;
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if (freq == V4L2_CID_POWER_LINE_FREQUENCY_60HZ)
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integration = integration - integration % 88889;
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expose_h = (integration >> 16);
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expose_m = (integration >> 8);
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expose_l = integration;
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/* integration time low */
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se401_set_feature(gspca_dev, HV7131_REG_TITL, expose_l);
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/* integration time mid */
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se401_set_feature(gspca_dev, HV7131_REG_TITM, expose_m);
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/* integration time high */
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se401_set_feature(gspca_dev, HV7131_REG_TITU, expose_h);
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}
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static int sd_config(struct gspca_dev *gspca_dev,
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const struct usb_device_id *id)
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{
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struct sd *sd = (struct sd *)gspca_dev;
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struct cam *cam = &gspca_dev->cam;
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u8 *cd = gspca_dev->usb_buf;
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int i, j, n;
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int widths[MAX_MODES], heights[MAX_MODES];
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/* Read the camera descriptor */
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se401_read_req(gspca_dev, SE401_REQ_GET_CAMERA_DESCRIPTOR, 1);
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if (gspca_dev->usb_err) {
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/* Sometimes after being idle for a while the se401 won't
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respond and needs a good kicking */
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usb_reset_device(gspca_dev->dev);
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gspca_dev->usb_err = 0;
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se401_read_req(gspca_dev, SE401_REQ_GET_CAMERA_DESCRIPTOR, 0);
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}
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/* Some cameras start with their LED on */
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se401_write_req(gspca_dev, SE401_REQ_LED_CONTROL, 0, 0);
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if (gspca_dev->usb_err)
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return gspca_dev->usb_err;
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if (cd[1] != 0x41) {
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pr_err("Wrong descriptor type\n");
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return -ENODEV;
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}
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if (!(cd[2] & SE401_FORMAT_BAYER)) {
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pr_err("Bayer format not supported!\n");
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return -ENODEV;
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}
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if (cd[3])
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pr_info("ExtraFeatures: %d\n", cd[3]);
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n = cd[4] | (cd[5] << 8);
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if (n > MAX_MODES) {
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pr_err("Too many frame sizes\n");
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return -ENODEV;
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}
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for (i = 0; i < n ; i++) {
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widths[i] = cd[6 + i * 4 + 0] | (cd[6 + i * 4 + 1] << 8);
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heights[i] = cd[6 + i * 4 + 2] | (cd[6 + i * 4 + 3] << 8);
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}
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for (i = 0; i < n ; i++) {
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sd->fmts[i].width = widths[i];
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sd->fmts[i].height = heights[i];
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sd->fmts[i].field = V4L2_FIELD_NONE;
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sd->fmts[i].colorspace = V4L2_COLORSPACE_SRGB;
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sd->fmts[i].priv = 1;
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/* janggu compression only works for 1/4th or 1/16th res */
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for (j = 0; j < n; j++) {
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if (widths[j] / 2 == widths[i] &&
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heights[j] / 2 == heights[i]) {
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sd->fmts[i].priv = 2;
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break;
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}
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}
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/* 1/16th if available too is better then 1/4th, because
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we then use a larger area of the sensor */
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for (j = 0; j < n; j++) {
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if (widths[j] / 4 == widths[i] &&
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heights[j] / 4 == heights[i]) {
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sd->fmts[i].priv = 4;
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break;
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}
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}
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if (sd->fmts[i].priv == 1) {
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/* Not a 1/4th or 1/16th res, use bayer */
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sd->fmts[i].pixelformat = V4L2_PIX_FMT_SBGGR8;
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sd->fmts[i].bytesperline = widths[i];
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sd->fmts[i].sizeimage = widths[i] * heights[i];
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pr_info("Frame size: %dx%d bayer\n",
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widths[i], heights[i]);
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} else {
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/* Found a match use janggu compression */
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sd->fmts[i].pixelformat = V4L2_PIX_FMT_SE401;
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sd->fmts[i].bytesperline = 0;
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sd->fmts[i].sizeimage = widths[i] * heights[i] * 3;
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pr_info("Frame size: %dx%d 1/%dth janggu\n",
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widths[i], heights[i],
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sd->fmts[i].priv * sd->fmts[i].priv);
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}
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}
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cam->cam_mode = sd->fmts;
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cam->nmodes = n;
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cam->bulk = 1;
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cam->bulk_size = BULK_SIZE;
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cam->bulk_nurbs = 4;
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sd->resetlevel = 0x2d; /* Set initial resetlevel */
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/* See if the camera supports brightness */
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se401_read_req(gspca_dev, SE401_REQ_GET_BRT, 1);
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sd->has_brightness = !!gspca_dev->usb_err;
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gspca_dev->usb_err = 0;
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return 0;
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}
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/* this function is called at probe and resume time */
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static int sd_init(struct gspca_dev *gspca_dev)
|
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{
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return 0;
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}
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/* function called at start time before URB creation */
|
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static int sd_isoc_init(struct gspca_dev *gspca_dev)
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{
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gspca_dev->alt = 1; /* Ignore the bogus isoc alt settings */
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return gspca_dev->usb_err;
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}
|
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|
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/* -- start the camera -- */
|
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static int sd_start(struct gspca_dev *gspca_dev)
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{
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struct sd *sd = (struct sd *)gspca_dev;
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int mult = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
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int mode = 0;
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se401_write_req(gspca_dev, SE401_REQ_CAMERA_POWER, 1, 1);
|
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if (gspca_dev->usb_err) {
|
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/* Sometimes after being idle for a while the se401 won't
|
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respond and needs a good kicking */
|
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usb_reset_device(gspca_dev->dev);
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gspca_dev->usb_err = 0;
|
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se401_write_req(gspca_dev, SE401_REQ_CAMERA_POWER, 1, 0);
|
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}
|
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se401_write_req(gspca_dev, SE401_REQ_LED_CONTROL, 1, 0);
|
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|
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se401_set_feature(gspca_dev, HV7131_REG_MODE_B, 0x05);
|
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|
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/* set size + mode */
|
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se401_write_req(gspca_dev, SE401_REQ_SET_WIDTH,
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gspca_dev->pixfmt.width * mult, 0);
|
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se401_write_req(gspca_dev, SE401_REQ_SET_HEIGHT,
|
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gspca_dev->pixfmt.height * mult, 0);
|
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/*
|
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* HDG: disabled this as it does not seem to do anything
|
||||
* se401_write_req(gspca_dev, SE401_REQ_SET_OUTPUT_MODE,
|
||||
* SE401_FORMAT_BAYER, 0);
|
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*/
|
||||
|
||||
switch (mult) {
|
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case 1: /* Raw bayer */
|
||||
mode = 0x03; break;
|
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case 2: /* 1/4th janggu */
|
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mode = SE401_QUANT_FACT << 4; break;
|
||||
case 4: /* 1/16th janggu */
|
||||
mode = (SE401_QUANT_FACT << 4) | 0x02; break;
|
||||
}
|
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se401_set_feature(gspca_dev, SE401_OPERATINGMODE, mode);
|
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|
||||
se401_set_feature(gspca_dev, HV7131_REG_ARLV, sd->resetlevel);
|
||||
|
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sd->packet_read = 0;
|
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sd->pixels_read = 0;
|
||||
sd->restart_stream = 0;
|
||||
sd->resetlevel_frame_count = 0;
|
||||
sd->resetlevel_adjust_dir = 0;
|
||||
sd->expo_change_state = EXPO_NO_CHANGE;
|
||||
|
||||
se401_write_req(gspca_dev, SE401_REQ_START_CONTINUOUS_CAPTURE, 0, 0);
|
||||
|
||||
return gspca_dev->usb_err;
|
||||
}
|
||||
|
||||
static void sd_stopN(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
se401_write_req(gspca_dev, SE401_REQ_STOP_CONTINUOUS_CAPTURE, 0, 0);
|
||||
se401_write_req(gspca_dev, SE401_REQ_LED_CONTROL, 0, 0);
|
||||
se401_write_req(gspca_dev, SE401_REQ_CAMERA_POWER, 0, 0);
|
||||
}
|
||||
|
||||
static void sd_dq_callback(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
struct sd *sd = (struct sd *)gspca_dev;
|
||||
unsigned int ahrc, alrc;
|
||||
int oldreset, adjust_dir;
|
||||
|
||||
/* Restart the stream if requested do so by pkt_scan */
|
||||
if (sd->restart_stream) {
|
||||
sd_stopN(gspca_dev);
|
||||
sd_start(gspca_dev);
|
||||
sd->restart_stream = 0;
|
||||
}
|
||||
|
||||
/* Automatically adjust sensor reset level
|
||||
Hyundai have some really nice docs about this and other sensor
|
||||
related stuff on their homepage: www.hei.co.kr */
|
||||
sd->resetlevel_frame_count++;
|
||||
if (sd->resetlevel_frame_count < 20)
|
||||
return;
|
||||
|
||||
/* For some reason this normally read-only register doesn't get reset
|
||||
to zero after reading them just once... */
|
||||
se401_get_feature(gspca_dev, HV7131_REG_HIREFNOH);
|
||||
se401_get_feature(gspca_dev, HV7131_REG_HIREFNOL);
|
||||
se401_get_feature(gspca_dev, HV7131_REG_LOREFNOH);
|
||||
se401_get_feature(gspca_dev, HV7131_REG_LOREFNOL);
|
||||
ahrc = 256*se401_get_feature(gspca_dev, HV7131_REG_HIREFNOH) +
|
||||
se401_get_feature(gspca_dev, HV7131_REG_HIREFNOL);
|
||||
alrc = 256*se401_get_feature(gspca_dev, HV7131_REG_LOREFNOH) +
|
||||
se401_get_feature(gspca_dev, HV7131_REG_LOREFNOL);
|
||||
|
||||
/* Not an exact science, but it seems to work pretty well... */
|
||||
oldreset = sd->resetlevel;
|
||||
if (alrc > 10) {
|
||||
while (alrc >= 10 && sd->resetlevel < 63) {
|
||||
sd->resetlevel++;
|
||||
alrc /= 2;
|
||||
}
|
||||
} else if (ahrc > 20) {
|
||||
while (ahrc >= 20 && sd->resetlevel > 0) {
|
||||
sd->resetlevel--;
|
||||
ahrc /= 2;
|
||||
}
|
||||
}
|
||||
/* Detect ping-pong-ing and halve adjustment to avoid overshoot */
|
||||
if (sd->resetlevel > oldreset)
|
||||
adjust_dir = 1;
|
||||
else
|
||||
adjust_dir = -1;
|
||||
if (sd->resetlevel_adjust_dir &&
|
||||
sd->resetlevel_adjust_dir != adjust_dir)
|
||||
sd->resetlevel = oldreset + (sd->resetlevel - oldreset) / 2;
|
||||
|
||||
if (sd->resetlevel != oldreset) {
|
||||
sd->resetlevel_adjust_dir = adjust_dir;
|
||||
se401_set_feature(gspca_dev, HV7131_REG_ARLV, sd->resetlevel);
|
||||
}
|
||||
|
||||
sd->resetlevel_frame_count = 0;
|
||||
}
|
||||
|
||||
static void sd_complete_frame(struct gspca_dev *gspca_dev, u8 *data, int len)
|
||||
{
|
||||
struct sd *sd = (struct sd *)gspca_dev;
|
||||
|
||||
switch (sd->expo_change_state) {
|
||||
case EXPO_CHANGED:
|
||||
/* The exposure was changed while this frame
|
||||
was being send, so this frame is ok */
|
||||
sd->expo_change_state = EXPO_DROP_FRAME;
|
||||
break;
|
||||
case EXPO_DROP_FRAME:
|
||||
/* The exposure was changed while this frame
|
||||
was being captured, drop it! */
|
||||
gspca_dev->last_packet_type = DISCARD_PACKET;
|
||||
sd->expo_change_state = EXPO_NO_CHANGE;
|
||||
break;
|
||||
case EXPO_NO_CHANGE:
|
||||
break;
|
||||
}
|
||||
gspca_frame_add(gspca_dev, LAST_PACKET, data, len);
|
||||
}
|
||||
|
||||
static void sd_pkt_scan_janggu(struct gspca_dev *gspca_dev, u8 *data, int len)
|
||||
{
|
||||
struct sd *sd = (struct sd *)gspca_dev;
|
||||
int imagesize = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height;
|
||||
int i, plen, bits, pixels, info, count;
|
||||
|
||||
if (sd->restart_stream)
|
||||
return;
|
||||
|
||||
/* Sometimes a 1024 bytes garbage bulk packet is send between frames */
|
||||
if (gspca_dev->last_packet_type == LAST_PACKET && len == 1024) {
|
||||
gspca_dev->last_packet_type = DISCARD_PACKET;
|
||||
return;
|
||||
}
|
||||
|
||||
i = 0;
|
||||
while (i < len) {
|
||||
/* Read header if not already be present from prev bulk pkt */
|
||||
if (sd->packet_read < 4) {
|
||||
count = 4 - sd->packet_read;
|
||||
if (count > len - i)
|
||||
count = len - i;
|
||||
memcpy(&sd->packet[sd->packet_read], &data[i], count);
|
||||
sd->packet_read += count;
|
||||
i += count;
|
||||
if (sd->packet_read < 4)
|
||||
break;
|
||||
}
|
||||
bits = sd->packet[3] + (sd->packet[2] << 8);
|
||||
pixels = sd->packet[1] + ((sd->packet[0] & 0x3f) << 8);
|
||||
info = (sd->packet[0] & 0xc0) >> 6;
|
||||
plen = ((bits + 47) >> 4) << 1;
|
||||
/* Sanity checks */
|
||||
if (plen > 1024) {
|
||||
pr_err("invalid packet len %d restarting stream\n",
|
||||
plen);
|
||||
goto error;
|
||||
}
|
||||
if (info == 3) {
|
||||
pr_err("unknown frame info value restarting stream\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Read (remainder of) packet contents */
|
||||
count = plen - sd->packet_read;
|
||||
if (count > len - i)
|
||||
count = len - i;
|
||||
memcpy(&sd->packet[sd->packet_read], &data[i], count);
|
||||
sd->packet_read += count;
|
||||
i += count;
|
||||
if (sd->packet_read < plen)
|
||||
break;
|
||||
|
||||
sd->pixels_read += pixels;
|
||||
sd->packet_read = 0;
|
||||
|
||||
switch (info) {
|
||||
case 0: /* Frame data */
|
||||
gspca_frame_add(gspca_dev, INTER_PACKET, sd->packet,
|
||||
plen);
|
||||
break;
|
||||
case 1: /* EOF */
|
||||
if (sd->pixels_read != imagesize) {
|
||||
pr_err("frame size %d expected %d\n",
|
||||
sd->pixels_read, imagesize);
|
||||
goto error;
|
||||
}
|
||||
sd_complete_frame(gspca_dev, sd->packet, plen);
|
||||
return; /* Discard the rest of the bulk packet !! */
|
||||
case 2: /* SOF */
|
||||
gspca_frame_add(gspca_dev, FIRST_PACKET, sd->packet,
|
||||
plen);
|
||||
sd->pixels_read = pixels;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return;
|
||||
|
||||
error:
|
||||
sd->restart_stream = 1;
|
||||
/* Give userspace a 0 bytes frame, so our dq callback gets
|
||||
called and it can restart the stream */
|
||||
gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
|
||||
gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
|
||||
}
|
||||
|
||||
static void sd_pkt_scan_bayer(struct gspca_dev *gspca_dev, u8 *data, int len)
|
||||
{
|
||||
struct cam *cam = &gspca_dev->cam;
|
||||
int imagesize = cam->cam_mode[gspca_dev->curr_mode].sizeimage;
|
||||
|
||||
if (gspca_dev->image_len == 0) {
|
||||
gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
|
||||
return;
|
||||
}
|
||||
|
||||
if (gspca_dev->image_len + len >= imagesize) {
|
||||
sd_complete_frame(gspca_dev, data, len);
|
||||
return;
|
||||
}
|
||||
|
||||
gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
|
||||
}
|
||||
|
||||
static void sd_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len)
|
||||
{
|
||||
int mult = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
|
||||
|
||||
if (len == 0)
|
||||
return;
|
||||
|
||||
if (mult == 1) /* mult == 1 means raw bayer */
|
||||
sd_pkt_scan_bayer(gspca_dev, data, len);
|
||||
else
|
||||
sd_pkt_scan_janggu(gspca_dev, data, len);
|
||||
}
|
||||
|
||||
#if IS_ENABLED(CONFIG_INPUT)
|
||||
static int sd_int_pkt_scan(struct gspca_dev *gspca_dev, u8 *data, int len)
|
||||
{
|
||||
struct sd *sd = (struct sd *)gspca_dev;
|
||||
u8 state;
|
||||
|
||||
if (len != 2)
|
||||
return -EINVAL;
|
||||
|
||||
switch (data[0]) {
|
||||
case 0:
|
||||
case 1:
|
||||
state = data[0];
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
if (sd->button_state != state) {
|
||||
input_report_key(gspca_dev->input_dev, KEY_CAMERA, state);
|
||||
input_sync(gspca_dev->input_dev);
|
||||
sd->button_state = state;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
|
||||
{
|
||||
struct gspca_dev *gspca_dev =
|
||||
container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
|
||||
struct sd *sd = (struct sd *)gspca_dev;
|
||||
|
||||
gspca_dev->usb_err = 0;
|
||||
|
||||
if (!gspca_dev->streaming)
|
||||
return 0;
|
||||
|
||||
switch (ctrl->id) {
|
||||
case V4L2_CID_BRIGHTNESS:
|
||||
setbrightness(gspca_dev, ctrl->val);
|
||||
break;
|
||||
case V4L2_CID_GAIN:
|
||||
setgain(gspca_dev, ctrl->val);
|
||||
break;
|
||||
case V4L2_CID_EXPOSURE:
|
||||
setexposure(gspca_dev, ctrl->val, sd->freq->val);
|
||||
break;
|
||||
}
|
||||
return gspca_dev->usb_err;
|
||||
}
|
||||
|
||||
static const struct v4l2_ctrl_ops sd_ctrl_ops = {
|
||||
.s_ctrl = sd_s_ctrl,
|
||||
};
|
||||
|
||||
static int sd_init_controls(struct gspca_dev *gspca_dev)
|
||||
{
|
||||
struct sd *sd = (struct sd *)gspca_dev;
|
||||
struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
|
||||
|
||||
gspca_dev->vdev.ctrl_handler = hdl;
|
||||
v4l2_ctrl_handler_init(hdl, 4);
|
||||
if (sd->has_brightness)
|
||||
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||
V4L2_CID_BRIGHTNESS, 0, 255, 1, 15);
|
||||
/* max is really 63 but > 50 is not pretty */
|
||||
v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||
V4L2_CID_GAIN, 0, 50, 1, 25);
|
||||
sd->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
|
||||
V4L2_CID_EXPOSURE, 0, 32767, 1, 15000);
|
||||
sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,
|
||||
V4L2_CID_POWER_LINE_FREQUENCY,
|
||||
V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, 0);
|
||||
|
||||
if (hdl->error) {
|
||||
pr_err("Could not initialize controls\n");
|
||||
return hdl->error;
|
||||
}
|
||||
v4l2_ctrl_cluster(2, &sd->exposure);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* sub-driver description */
|
||||
static const struct sd_desc sd_desc = {
|
||||
.name = MODULE_NAME,
|
||||
.config = sd_config,
|
||||
.init = sd_init,
|
||||
.init_controls = sd_init_controls,
|
||||
.isoc_init = sd_isoc_init,
|
||||
.start = sd_start,
|
||||
.stopN = sd_stopN,
|
||||
.dq_callback = sd_dq_callback,
|
||||
.pkt_scan = sd_pkt_scan,
|
||||
#if IS_ENABLED(CONFIG_INPUT)
|
||||
.int_pkt_scan = sd_int_pkt_scan,
|
||||
#endif
|
||||
};
|
||||
|
||||
/* -- module initialisation -- */
|
||||
static const struct usb_device_id device_table[] = {
|
||||
{USB_DEVICE(0x03e8, 0x0004)}, /* Endpoints/Aox SE401 */
|
||||
{USB_DEVICE(0x0471, 0x030b)}, /* Philips PCVC665K */
|
||||
{USB_DEVICE(0x047d, 0x5001)}, /* Kensington 67014 */
|
||||
{USB_DEVICE(0x047d, 0x5002)}, /* Kensington 6701(5/7) */
|
||||
{USB_DEVICE(0x047d, 0x5003)}, /* Kensington 67016 */
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(usb, device_table);
|
||||
|
||||
/* -- device connect -- */
|
||||
static int sd_probe(struct usb_interface *intf,
|
||||
const struct usb_device_id *id)
|
||||
{
|
||||
return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
|
||||
THIS_MODULE);
|
||||
}
|
||||
|
||||
static int sd_pre_reset(struct usb_interface *intf)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sd_post_reset(struct usb_interface *intf)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct usb_driver sd_driver = {
|
||||
.name = MODULE_NAME,
|
||||
.id_table = device_table,
|
||||
.probe = sd_probe,
|
||||
.disconnect = gspca_disconnect,
|
||||
#ifdef CONFIG_PM
|
||||
.suspend = gspca_suspend,
|
||||
.resume = gspca_resume,
|
||||
.reset_resume = gspca_resume,
|
||||
#endif
|
||||
.pre_reset = sd_pre_reset,
|
||||
.post_reset = sd_post_reset,
|
||||
};
|
||||
|
||||
module_usb_driver(sd_driver);
|
||||
Loading…
Add table
Add a link
Reference in a new issue