631 lines
15 KiB
C
631 lines
15 KiB
C
/*
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* Syntek DV4000 (STK014) subdriver
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*
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* Copyright (C) 2008 Jean-Francois Moine (http://moinejf.free.fr)
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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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* 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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#define MODULE_NAME "stk014"
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#include "gspca.h"
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#include "jpeg.h"
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MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
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MODULE_DESCRIPTION("Syntek DV4000 (STK014) USB Camera Driver");
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MODULE_LICENSE("GPL");
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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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unsigned char brightness;
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unsigned char contrast;
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unsigned char colors;
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unsigned char lightfreq;
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u8 quality;
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#define QUALITY_MIN 60
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#define QUALITY_MAX 95
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#define QUALITY_DEF 80
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u8 *jpeg_hdr;
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};
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/* V4L2 controls supported by the driver */
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static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
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static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val);
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static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val);
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static struct ctrl sd_ctrls[] = {
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{
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Brightness",
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.minimum = 0,
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.maximum = 255,
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.step = 1,
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#define BRIGHTNESS_DEF 127
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.default_value = BRIGHTNESS_DEF,
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},
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.set = sd_setbrightness,
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.get = sd_getbrightness,
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},
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{
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{
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.id = V4L2_CID_CONTRAST,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Contrast",
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.minimum = 0,
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.maximum = 255,
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.step = 1,
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#define CONTRAST_DEF 127
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.default_value = CONTRAST_DEF,
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},
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.set = sd_setcontrast,
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.get = sd_getcontrast,
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},
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{
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{
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.id = V4L2_CID_SATURATION,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Color",
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.minimum = 0,
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.maximum = 255,
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.step = 1,
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#define COLOR_DEF 127
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.default_value = COLOR_DEF,
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},
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.set = sd_setcolors,
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.get = sd_getcolors,
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},
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{
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{
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.id = V4L2_CID_POWER_LINE_FREQUENCY,
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.type = V4L2_CTRL_TYPE_MENU,
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.name = "Light frequency filter",
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.minimum = 1,
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.maximum = 2, /* 0: 0, 1: 50Hz, 2:60Hz */
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.step = 1,
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#define FREQ_DEF 1
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.default_value = FREQ_DEF,
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},
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.set = sd_setfreq,
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.get = sd_getfreq,
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},
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};
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static const struct v4l2_pix_format vga_mode[] = {
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{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
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.bytesperline = 320,
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.sizeimage = 320 * 240 * 3 / 8 + 590,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.priv = 1},
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{640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
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.bytesperline = 640,
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.sizeimage = 640 * 480 * 3 / 8 + 590,
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.colorspace = V4L2_COLORSPACE_JPEG,
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.priv = 0},
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};
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/* -- read a register -- */
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static int reg_r(struct gspca_dev *gspca_dev,
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__u16 index)
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{
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struct usb_device *dev = gspca_dev->dev;
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int ret;
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ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
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0x00,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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0x00,
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index,
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gspca_dev->usb_buf, 1,
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500);
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if (ret < 0) {
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PDEBUG(D_ERR, "reg_r err %d", ret);
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return ret;
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}
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return gspca_dev->usb_buf[0];
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}
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/* -- write a register -- */
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static int reg_w(struct gspca_dev *gspca_dev,
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__u16 index, __u16 value)
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{
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struct usb_device *dev = gspca_dev->dev;
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int ret;
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ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
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0x01,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value,
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index,
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NULL,
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0,
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500);
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if (ret < 0)
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PDEBUG(D_ERR, "reg_w err %d", ret);
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return ret;
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}
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/* -- get a bulk value (4 bytes) -- */
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static int rcv_val(struct gspca_dev *gspca_dev,
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int ads)
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{
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struct usb_device *dev = gspca_dev->dev;
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int alen, ret;
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reg_w(gspca_dev, 0x634, (ads >> 16) & 0xff);
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reg_w(gspca_dev, 0x635, (ads >> 8) & 0xff);
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reg_w(gspca_dev, 0x636, ads & 0xff);
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reg_w(gspca_dev, 0x637, 0);
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reg_w(gspca_dev, 0x638, 4); /* len & 0xff */
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reg_w(gspca_dev, 0x639, 0); /* len >> 8 */
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reg_w(gspca_dev, 0x63a, 0);
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reg_w(gspca_dev, 0x63b, 0);
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reg_w(gspca_dev, 0x630, 5);
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ret = usb_bulk_msg(dev,
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usb_rcvbulkpipe(dev, 0x05),
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gspca_dev->usb_buf,
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4, /* length */
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&alen,
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500); /* timeout in milliseconds */
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return ret;
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}
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/* -- send a bulk value -- */
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static int snd_val(struct gspca_dev *gspca_dev,
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int ads,
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unsigned int val)
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{
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struct usb_device *dev = gspca_dev->dev;
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int alen, ret;
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__u8 seq = 0;
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if (ads == 0x003f08) {
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ret = reg_r(gspca_dev, 0x0704);
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if (ret < 0)
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goto ko;
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ret = reg_r(gspca_dev, 0x0705);
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if (ret < 0)
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goto ko;
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seq = ret; /* keep the sequence number */
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ret = reg_r(gspca_dev, 0x0650);
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if (ret < 0)
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goto ko;
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reg_w(gspca_dev, 0x654, seq);
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} else {
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reg_w(gspca_dev, 0x654, (ads >> 16) & 0xff);
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}
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reg_w(gspca_dev, 0x655, (ads >> 8) & 0xff);
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reg_w(gspca_dev, 0x656, ads & 0xff);
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reg_w(gspca_dev, 0x657, 0);
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reg_w(gspca_dev, 0x658, 0x04); /* size */
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reg_w(gspca_dev, 0x659, 0);
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reg_w(gspca_dev, 0x65a, 0);
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reg_w(gspca_dev, 0x65b, 0);
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reg_w(gspca_dev, 0x650, 5);
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gspca_dev->usb_buf[0] = val >> 24;
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gspca_dev->usb_buf[1] = val >> 16;
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gspca_dev->usb_buf[2] = val >> 8;
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gspca_dev->usb_buf[3] = val;
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ret = usb_bulk_msg(dev,
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usb_sndbulkpipe(dev, 6),
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gspca_dev->usb_buf,
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4,
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&alen,
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500); /* timeout in milliseconds */
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if (ret < 0)
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goto ko;
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if (ads == 0x003f08) {
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seq += 4;
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seq &= 0x3f;
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reg_w(gspca_dev, 0x705, seq);
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}
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return ret;
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ko:
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PDEBUG(D_ERR, "snd_val err %d", ret);
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return ret;
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}
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/* set a camera parameter */
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static int set_par(struct gspca_dev *gspca_dev,
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int parval)
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{
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return snd_val(gspca_dev, 0x003f08, parval);
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}
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static void setbrightness(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 parval;
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parval = 0x06000000 /* whiteness */
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+ (sd->brightness << 16);
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set_par(gspca_dev, parval);
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}
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static void setcontrast(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 parval;
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parval = 0x07000000 /* contrast */
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+ (sd->contrast << 16);
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set_par(gspca_dev, parval);
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}
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static void setcolors(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 parval;
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parval = 0x08000000 /* saturation */
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+ (sd->colors << 16);
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set_par(gspca_dev, parval);
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}
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static void setfreq(struct gspca_dev *gspca_dev)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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set_par(gspca_dev, sd->lightfreq == 1
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? 0x33640000 /* 50 Hz */
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: 0x33780000); /* 60 Hz */
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}
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/* this function is called at probe time */
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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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gspca_dev->cam.cam_mode = vga_mode;
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gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
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sd->brightness = BRIGHTNESS_DEF;
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sd->contrast = CONTRAST_DEF;
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sd->colors = COLOR_DEF;
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sd->lightfreq = FREQ_DEF;
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sd->quality = QUALITY_DEF;
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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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int ret;
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/* check if the device responds */
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usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
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ret = reg_r(gspca_dev, 0x0740);
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if (ret < 0)
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return ret;
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if (ret != 0xff) {
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PDEBUG(D_ERR|D_STREAM, "init reg: 0x%02x", ret);
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return -1;
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}
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return 0;
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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 ret, value;
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/* create the JPEG header */
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sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
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if (!sd->jpeg_hdr)
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return -ENOMEM;
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jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
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0x22); /* JPEG 411 */
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jpeg_set_qual(sd->jpeg_hdr, sd->quality);
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/* work on alternate 1 */
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usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
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set_par(gspca_dev, 0x10000000);
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set_par(gspca_dev, 0x00000000);
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set_par(gspca_dev, 0x8002e001);
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set_par(gspca_dev, 0x14000000);
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if (gspca_dev->width > 320)
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value = 0x8002e001; /* 640x480 */
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else
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value = 0x4001f000; /* 320x240 */
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set_par(gspca_dev, value);
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ret = usb_set_interface(gspca_dev->dev,
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gspca_dev->iface,
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gspca_dev->alt);
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if (ret < 0) {
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PDEBUG(D_ERR|D_STREAM, "set intf %d %d failed",
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gspca_dev->iface, gspca_dev->alt);
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goto out;
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}
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ret = reg_r(gspca_dev, 0x0630);
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if (ret < 0)
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goto out;
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rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
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ret = reg_r(gspca_dev, 0x0650);
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if (ret < 0)
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goto out;
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snd_val(gspca_dev, 0x000020, 0xffffffff);
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reg_w(gspca_dev, 0x0620, 0);
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reg_w(gspca_dev, 0x0630, 0);
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reg_w(gspca_dev, 0x0640, 0);
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reg_w(gspca_dev, 0x0650, 0);
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reg_w(gspca_dev, 0x0660, 0);
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setbrightness(gspca_dev); /* whiteness */
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setcontrast(gspca_dev); /* contrast */
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setcolors(gspca_dev); /* saturation */
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set_par(gspca_dev, 0x09800000); /* Red ? */
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set_par(gspca_dev, 0x0a800000); /* Green ? */
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set_par(gspca_dev, 0x0b800000); /* Blue ? */
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set_par(gspca_dev, 0x0d030000); /* Gamma ? */
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setfreq(gspca_dev); /* light frequency */
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/* start the video flow */
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set_par(gspca_dev, 0x01000000);
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set_par(gspca_dev, 0x01000000);
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PDEBUG(D_STREAM, "camera started alt: 0x%02x", gspca_dev->alt);
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return 0;
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out:
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PDEBUG(D_ERR|D_STREAM, "camera start err %d", ret);
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return ret;
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}
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static void sd_stopN(struct gspca_dev *gspca_dev)
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{
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struct usb_device *dev = gspca_dev->dev;
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set_par(gspca_dev, 0x02000000);
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set_par(gspca_dev, 0x02000000);
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usb_set_interface(dev, gspca_dev->iface, 1);
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reg_r(gspca_dev, 0x0630);
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rcv_val(gspca_dev, 0x000020); /* << (value ff ff ff ff) */
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reg_r(gspca_dev, 0x0650);
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snd_val(gspca_dev, 0x000020, 0xffffffff);
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reg_w(gspca_dev, 0x0620, 0);
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reg_w(gspca_dev, 0x0630, 0);
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reg_w(gspca_dev, 0x0640, 0);
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reg_w(gspca_dev, 0x0650, 0);
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reg_w(gspca_dev, 0x0660, 0);
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PDEBUG(D_STREAM, "camera stopped");
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}
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static void sd_stop0(struct gspca_dev *gspca_dev)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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kfree(sd->jpeg_hdr);
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}
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static void sd_pkt_scan(struct gspca_dev *gspca_dev,
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struct gspca_frame *frame, /* target */
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__u8 *data, /* isoc packet */
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int len) /* iso packet length */
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{
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struct sd *sd = (struct sd *) gspca_dev;
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static unsigned char ffd9[] = {0xff, 0xd9};
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|
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/* a frame starts with:
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* - 0xff 0xfe
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* - 0x08 0x00 - length (little endian ?!)
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* - 4 bytes = size of whole frame (BE - including header)
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* - 0x00 0x0c
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* - 0xff 0xd8
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* - .. JPEG image with escape sequences (ff 00)
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* (without ending - ff d9)
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*/
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if (data[0] == 0xff && data[1] == 0xfe) {
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frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
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ffd9, 2);
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|
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/* put the JPEG 411 header */
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gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
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sd->jpeg_hdr, JPEG_HDR_SZ);
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|
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/* beginning of the frame */
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#define STKHDRSZ 12
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data += STKHDRSZ;
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len -= STKHDRSZ;
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}
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gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
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}
|
|
|
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static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
|
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{
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struct sd *sd = (struct sd *) gspca_dev;
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|
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sd->brightness = val;
|
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if (gspca_dev->streaming)
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setbrightness(gspca_dev);
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return 0;
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}
|
|
|
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static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
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{
|
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struct sd *sd = (struct sd *) gspca_dev;
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|
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*val = sd->brightness;
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return 0;
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}
|
|
|
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static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
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{
|
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struct sd *sd = (struct sd *) gspca_dev;
|
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|
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sd->contrast = val;
|
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if (gspca_dev->streaming)
|
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setcontrast(gspca_dev);
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return 0;
|
|
}
|
|
|
|
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
*val = sd->contrast;
|
|
return 0;
|
|
}
|
|
|
|
static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
sd->colors = val;
|
|
if (gspca_dev->streaming)
|
|
setcolors(gspca_dev);
|
|
return 0;
|
|
}
|
|
|
|
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
*val = sd->colors;
|
|
return 0;
|
|
}
|
|
|
|
static int sd_setfreq(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
sd->lightfreq = val;
|
|
if (gspca_dev->streaming)
|
|
setfreq(gspca_dev);
|
|
return 0;
|
|
}
|
|
|
|
static int sd_getfreq(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
*val = sd->lightfreq;
|
|
return 0;
|
|
}
|
|
|
|
static int sd_querymenu(struct gspca_dev *gspca_dev,
|
|
struct v4l2_querymenu *menu)
|
|
{
|
|
switch (menu->id) {
|
|
case V4L2_CID_POWER_LINE_FREQUENCY:
|
|
switch (menu->index) {
|
|
case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
|
|
strcpy((char *) menu->name, "50 Hz");
|
|
return 0;
|
|
case 2: /* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */
|
|
strcpy((char *) menu->name, "60 Hz");
|
|
return 0;
|
|
}
|
|
break;
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int sd_set_jcomp(struct gspca_dev *gspca_dev,
|
|
struct v4l2_jpegcompression *jcomp)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
if (jcomp->quality < QUALITY_MIN)
|
|
sd->quality = QUALITY_MIN;
|
|
else if (jcomp->quality > QUALITY_MAX)
|
|
sd->quality = QUALITY_MAX;
|
|
else
|
|
sd->quality = jcomp->quality;
|
|
if (gspca_dev->streaming)
|
|
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
|
|
return 0;
|
|
}
|
|
|
|
static int sd_get_jcomp(struct gspca_dev *gspca_dev,
|
|
struct v4l2_jpegcompression *jcomp)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
|
|
memset(jcomp, 0, sizeof *jcomp);
|
|
jcomp->quality = sd->quality;
|
|
jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
|
|
| V4L2_JPEG_MARKER_DQT;
|
|
return 0;
|
|
}
|
|
|
|
/* sub-driver description */
|
|
static const struct sd_desc sd_desc = {
|
|
.name = MODULE_NAME,
|
|
.ctrls = sd_ctrls,
|
|
.nctrls = ARRAY_SIZE(sd_ctrls),
|
|
.config = sd_config,
|
|
.init = sd_init,
|
|
.start = sd_start,
|
|
.stopN = sd_stopN,
|
|
.stop0 = sd_stop0,
|
|
.pkt_scan = sd_pkt_scan,
|
|
.querymenu = sd_querymenu,
|
|
.get_jcomp = sd_get_jcomp,
|
|
.set_jcomp = sd_set_jcomp,
|
|
};
|
|
|
|
/* -- module initialisation -- */
|
|
static const __devinitdata struct usb_device_id device_table[] = {
|
|
{USB_DEVICE(0x05e1, 0x0893)},
|
|
{}
|
|
};
|
|
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 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,
|
|
#endif
|
|
};
|
|
|
|
/* -- module insert / remove -- */
|
|
static int __init sd_mod_init(void)
|
|
{
|
|
int ret;
|
|
ret = usb_register(&sd_driver);
|
|
if (ret < 0)
|
|
return ret;
|
|
info("registered");
|
|
return 0;
|
|
}
|
|
static void __exit sd_mod_exit(void)
|
|
{
|
|
usb_deregister(&sd_driver);
|
|
info("deregistered");
|
|
}
|
|
|
|
module_init(sd_mod_init);
|
|
module_exit(sd_mod_exit);
|