diff options
Diffstat (limited to 'drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c')
| -rw-r--r-- | drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c new file mode 100644 index 000000000000..748e1421d6d8 --- /dev/null +++ b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c @@ -0,0 +1,272 @@ +/* + * 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: + err = vv6410_set_hflip(gspca_dev, ctrl->val); + break; + case V4L2_CID_VFLIP: + 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, 4); + 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 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) +{ + 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_V4L2, "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_V4L2, "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_V4L2, "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_V4L2, "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; +} |