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265 lines
6.4 KiB
265 lines
6.4 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher |
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* Mark Cave-Ayland, Carlo E Prelz, Dick Streefland |
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* Copyright (c) 2002, 2003 Tuukka Toivonen |
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* Copyright (c) 2008 Erik Andrén |
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* |
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* P/N 861037: Sensor HDCS1000 ASIC STV0600 |
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* P/N 861050-0010: Sensor HDCS1000 ASIC STV0600 |
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* P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express |
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* P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam |
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* P/N 861075-0040: Sensor HDCS1000 ASIC |
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* P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB |
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* P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web |
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*/ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include "stv06xx_vv6410.h" |
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static struct v4l2_pix_format vv6410_mode[] = { |
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{ |
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356, |
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292, |
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V4L2_PIX_FMT_SGRBG8, |
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V4L2_FIELD_NONE, |
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.sizeimage = 356 * 292, |
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.bytesperline = 356, |
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.colorspace = V4L2_COLORSPACE_SRGB, |
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.priv = 0 |
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} |
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}; |
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static int vv6410_s_ctrl(struct v4l2_ctrl *ctrl) |
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{ |
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struct gspca_dev *gspca_dev = |
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container_of(ctrl->handler, struct gspca_dev, ctrl_handler); |
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int err = -EINVAL; |
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switch (ctrl->id) { |
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case V4L2_CID_HFLIP: |
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if (!gspca_dev->streaming) |
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return 0; |
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err = vv6410_set_hflip(gspca_dev, ctrl->val); |
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break; |
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case V4L2_CID_VFLIP: |
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if (!gspca_dev->streaming) |
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return 0; |
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err = vv6410_set_vflip(gspca_dev, ctrl->val); |
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break; |
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case V4L2_CID_GAIN: |
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err = vv6410_set_analog_gain(gspca_dev, ctrl->val); |
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break; |
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case V4L2_CID_EXPOSURE: |
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err = vv6410_set_exposure(gspca_dev, ctrl->val); |
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break; |
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} |
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return err; |
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} |
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static const struct v4l2_ctrl_ops vv6410_ctrl_ops = { |
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.s_ctrl = vv6410_s_ctrl, |
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}; |
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static int vv6410_probe(struct sd *sd) |
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{ |
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u16 data; |
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int err; |
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err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data); |
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if (err < 0) |
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return -ENODEV; |
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if (data != 0x19) |
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return -ENODEV; |
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pr_info("vv6410 sensor detected\n"); |
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sd->gspca_dev.cam.cam_mode = vv6410_mode; |
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sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode); |
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return 0; |
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} |
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static int vv6410_init_controls(struct sd *sd) |
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{ |
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struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler; |
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v4l2_ctrl_handler_init(hdl, 2); |
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/* Disable the hardware VFLIP and HFLIP as we currently lack a |
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mechanism to adjust the image offset in such a way that |
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we don't need to renegotiate the announced format */ |
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/* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */ |
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/* V4L2_CID_HFLIP, 0, 1, 1, 0); */ |
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/* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */ |
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/* V4L2_CID_VFLIP, 0, 1, 1, 0); */ |
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v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, |
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V4L2_CID_EXPOSURE, 0, 32768, 1, 20000); |
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v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, |
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V4L2_CID_GAIN, 0, 15, 1, 10); |
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return hdl->error; |
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} |
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static int vv6410_init(struct sd *sd) |
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{ |
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int err = 0, i; |
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for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++) |
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stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data); |
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err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init, |
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ARRAY_SIZE(vv6410_sensor_init)); |
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return (err < 0) ? err : 0; |
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} |
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static int vv6410_start(struct sd *sd) |
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{ |
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int err; |
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struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
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struct cam *cam = &sd->gspca_dev.cam; |
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u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv; |
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if (priv & VV6410_SUBSAMPLE) { |
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gspca_dbg(gspca_dev, D_CONF, "Enabling subsampling\n"); |
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stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02); |
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stv06xx_write_bridge(sd, STV_X_CTRL, 0x06); |
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stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10); |
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} else { |
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stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01); |
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stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a); |
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stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00); |
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} |
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/* Turn on LED */ |
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err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON); |
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if (err < 0) |
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return err; |
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err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0); |
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if (err < 0) |
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return err; |
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gspca_dbg(gspca_dev, D_STREAM, "Starting stream\n"); |
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return 0; |
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} |
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static int vv6410_stop(struct sd *sd) |
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{ |
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struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
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int err; |
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/* Turn off LED */ |
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err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF); |
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if (err < 0) |
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return err; |
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err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE); |
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if (err < 0) |
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return err; |
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gspca_dbg(gspca_dev, D_STREAM, "Halting stream\n"); |
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return 0; |
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} |
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static int vv6410_dump(struct sd *sd) |
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{ |
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u8 i; |
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int err = 0; |
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pr_info("Dumping all vv6410 sensor registers\n"); |
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for (i = 0; i < 0xff && !err; i++) { |
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u16 data; |
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err = stv06xx_read_sensor(sd, i, &data); |
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pr_info("Register 0x%x contained 0x%x\n", i, data); |
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} |
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return (err < 0) ? err : 0; |
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} |
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static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val) |
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{ |
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int err; |
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u16 i2c_data; |
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struct sd *sd = (struct sd *) gspca_dev; |
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err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data); |
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if (err < 0) |
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return err; |
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if (val) |
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i2c_data |= VV6410_HFLIP; |
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else |
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i2c_data &= ~VV6410_HFLIP; |
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gspca_dbg(gspca_dev, D_CONF, "Set horizontal flip to %d\n", val); |
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err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data); |
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return (err < 0) ? err : 0; |
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} |
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static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val) |
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{ |
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int err; |
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u16 i2c_data; |
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struct sd *sd = (struct sd *) gspca_dev; |
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err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data); |
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if (err < 0) |
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return err; |
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if (val) |
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i2c_data |= VV6410_VFLIP; |
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else |
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i2c_data &= ~VV6410_VFLIP; |
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gspca_dbg(gspca_dev, D_CONF, "Set vertical flip to %d\n", val); |
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err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data); |
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return (err < 0) ? err : 0; |
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} |
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static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val) |
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{ |
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int err; |
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struct sd *sd = (struct sd *) gspca_dev; |
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gspca_dbg(gspca_dev, D_CONF, "Set analog gain to %d\n", val); |
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err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf)); |
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return (err < 0) ? err : 0; |
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} |
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static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val) |
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{ |
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int err; |
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struct sd *sd = (struct sd *) gspca_dev; |
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unsigned int fine, coarse; |
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val = (val * val >> 14) + val / 4; |
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fine = val % VV6410_CIF_LINELENGTH; |
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coarse = min(512, val / VV6410_CIF_LINELENGTH); |
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gspca_dbg(gspca_dev, D_CONF, "Set coarse exposure to %d, fine exposure to %d\n", |
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coarse, fine); |
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err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8); |
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if (err < 0) |
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goto out; |
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err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff); |
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if (err < 0) |
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goto out; |
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err = stv06xx_write_sensor(sd, VV6410_COARSEH, coarse >> 8); |
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if (err < 0) |
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goto out; |
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err = stv06xx_write_sensor(sd, VV6410_COARSEL, coarse & 0xff); |
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out: |
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return err; |
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}
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