| /* |
| * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher |
| * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland |
| * Copyright (c) 2002, 2003 Tuukka Toivonen |
| * Copyright (c) 2008 Erik Andrén |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| * P/N 861037: Sensor HDCS1000 ASIC STV0600 |
| * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600 |
| * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express |
| * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam |
| * P/N 861075-0040: Sensor HDCS1000 ASIC |
| * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB |
| * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include "stv06xx_vv6410.h" |
| |
| static struct v4l2_pix_format vv6410_mode[] = { |
| { |
| 356, |
| 292, |
| V4L2_PIX_FMT_SGRBG8, |
| V4L2_FIELD_NONE, |
| .sizeimage = 356 * 292, |
| .bytesperline = 356, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 0 |
| } |
| }; |
| |
| static int vv6410_s_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct gspca_dev *gspca_dev = |
| container_of(ctrl->handler, struct gspca_dev, ctrl_handler); |
| int err = -EINVAL; |
| |
| switch (ctrl->id) { |
| case V4L2_CID_HFLIP: |
| if (!gspca_dev->streaming) |
| return 0; |
| err = vv6410_set_hflip(gspca_dev, ctrl->val); |
| break; |
| case V4L2_CID_VFLIP: |
| if (!gspca_dev->streaming) |
| return 0; |
| err = vv6410_set_vflip(gspca_dev, ctrl->val); |
| break; |
| case V4L2_CID_GAIN: |
| err = vv6410_set_analog_gain(gspca_dev, ctrl->val); |
| break; |
| case V4L2_CID_EXPOSURE: |
| err = vv6410_set_exposure(gspca_dev, ctrl->val); |
| break; |
| } |
| return err; |
| } |
| |
| static const struct v4l2_ctrl_ops vv6410_ctrl_ops = { |
| .s_ctrl = vv6410_s_ctrl, |
| }; |
| |
| static int vv6410_probe(struct sd *sd) |
| { |
| u16 data; |
| int err; |
| |
| err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data); |
| if (err < 0) |
| return -ENODEV; |
| |
| if (data != 0x19) |
| return -ENODEV; |
| |
| pr_info("vv6410 sensor detected\n"); |
| |
| sd->gspca_dev.cam.cam_mode = vv6410_mode; |
| sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode); |
| return 0; |
| } |
| |
| static int vv6410_init_controls(struct sd *sd) |
| { |
| struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler; |
| |
| v4l2_ctrl_handler_init(hdl, 2); |
| /* Disable the hardware VFLIP and HFLIP as we currently lack a |
| mechanism to adjust the image offset in such a way that |
| we don't need to renegotiate the announced format */ |
| /* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */ |
| /* V4L2_CID_HFLIP, 0, 1, 1, 0); */ |
| /* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */ |
| /* V4L2_CID_VFLIP, 0, 1, 1, 0); */ |
| v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, |
| V4L2_CID_EXPOSURE, 0, 32768, 1, 20000); |
| v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, |
| V4L2_CID_GAIN, 0, 15, 1, 10); |
| return hdl->error; |
| } |
| |
| static int vv6410_init(struct sd *sd) |
| { |
| int err = 0, i; |
| |
| for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++) |
| stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data); |
| |
| if (err < 0) |
| return err; |
| |
| err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init, |
| ARRAY_SIZE(vv6410_sensor_init)); |
| return (err < 0) ? err : 0; |
| } |
| |
| static int vv6410_start(struct sd *sd) |
| { |
| int err; |
| struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
| struct cam *cam = &sd->gspca_dev.cam; |
| u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv; |
| |
| if (priv & VV6410_SUBSAMPLE) { |
| PDEBUG(D_CONF, "Enabling subsampling"); |
| stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02); |
| stv06xx_write_bridge(sd, STV_X_CTRL, 0x06); |
| |
| stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10); |
| } else { |
| stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01); |
| stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a); |
| stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00); |
| |
| } |
| |
| /* Turn on LED */ |
| err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON); |
| if (err < 0) |
| return err; |
| |
| err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0); |
| if (err < 0) |
| return err; |
| |
| PDEBUG(D_STREAM, "Starting stream"); |
| |
| return 0; |
| } |
| |
| static int vv6410_stop(struct sd *sd) |
| { |
| struct gspca_dev *gspca_dev = (struct gspca_dev *)sd; |
| int err; |
| |
| /* Turn off LED */ |
| err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF); |
| if (err < 0) |
| return err; |
| |
| err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE); |
| if (err < 0) |
| return err; |
| |
| PDEBUG(D_STREAM, "Halting stream"); |
| |
| return (err < 0) ? err : 0; |
| } |
| |
| static int vv6410_dump(struct sd *sd) |
| { |
| u8 i; |
| int err = 0; |
| |
| pr_info("Dumping all vv6410 sensor registers\n"); |
| for (i = 0; i < 0xff && !err; i++) { |
| u16 data; |
| err = stv06xx_read_sensor(sd, i, &data); |
| pr_info("Register 0x%x contained 0x%x\n", i, data); |
| } |
| return (err < 0) ? err : 0; |
| } |
| |
| static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u16 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data); |
| if (err < 0) |
| return err; |
| |
| if (val) |
| i2c_data |= VV6410_HFLIP; |
| else |
| i2c_data &= ~VV6410_HFLIP; |
| |
| PDEBUG(D_CONF, "Set horizontal flip to %d", val); |
| err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data); |
| |
| return (err < 0) ? err : 0; |
| } |
| |
| static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u16 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data); |
| if (err < 0) |
| return err; |
| |
| if (val) |
| i2c_data |= VV6410_VFLIP; |
| else |
| i2c_data &= ~VV6410_VFLIP; |
| |
| PDEBUG(D_CONF, "Set vertical flip to %d", val); |
| err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data); |
| |
| return (err < 0) ? err : 0; |
| } |
| |
| static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_CONF, "Set analog gain to %d", val); |
| err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf)); |
| |
| return (err < 0) ? err : 0; |
| } |
| |
| static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| struct sd *sd = (struct sd *) gspca_dev; |
| unsigned int fine, coarse; |
| |
| val = (val * val >> 14) + val / 4; |
| |
| fine = val % VV6410_CIF_LINELENGTH; |
| coarse = min(512, val / VV6410_CIF_LINELENGTH); |
| |
| PDEBUG(D_CONF, "Set coarse exposure to %d, fine expsure to %d", |
| coarse, fine); |
| |
| err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8); |
| if (err < 0) |
| goto out; |
| |
| err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff); |
| if (err < 0) |
| goto out; |
| |
| err = stv06xx_write_sensor(sd, VV6410_COARSEH, coarse >> 8); |
| if (err < 0) |
| goto out; |
| |
| err = stv06xx_write_sensor(sd, VV6410_COARSEL, coarse & 0xff); |
| |
| out: |
| return err; |
| } |
