diff options
Diffstat (limited to 'drivers/media/video/gspca/stv06xx/stv06xx_vv6410.c')
| -rw-r--r-- | drivers/media/video/gspca/stv06xx/stv06xx_vv6410.c | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_vv6410.c b/drivers/media/video/gspca/stv06xx/stv06xx_vv6410.c new file mode 100644 index 00000000..a5c69d9e --- /dev/null +++ b/drivers/media/video/gspca/stv06xx/stv06xx_vv6410.c @@ -0,0 +1,374 @@ +/* + * 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 const struct ctrl vv6410_ctrl[] = { +#define HFLIP_IDX 0 + { + { + .id = V4L2_CID_HFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "horizontal flip", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0 + }, + .set = vv6410_set_hflip, + .get = vv6410_get_hflip + }, +#define VFLIP_IDX 1 + { + { + .id = V4L2_CID_VFLIP, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "vertical flip", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0 + }, + .set = vv6410_set_vflip, + .get = vv6410_get_vflip + }, +#define GAIN_IDX 2 + { + { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "analog gain", + .minimum = 0, + .maximum = 15, + .step = 1, + .default_value = 10 + }, + .set = vv6410_set_analog_gain, + .get = vv6410_get_analog_gain + }, +#define EXPOSURE_IDX 3 + { + { + .id = V4L2_CID_EXPOSURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "exposure", + .minimum = 0, + .maximum = 32768, + .step = 1, + .default_value = 20000 + }, + .set = vv6410_set_exposure, + .get = vv6410_get_exposure + } + }; + +static int vv6410_probe(struct sd *sd) +{ + u16 data; + int err, i; + s32 *sensor_settings; + + err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data); + if (err < 0) + return -ENODEV; + + if (data == 0x19) { + pr_info("vv6410 sensor detected\n"); + + sensor_settings = kmalloc(ARRAY_SIZE(vv6410_ctrl) * sizeof(s32), + GFP_KERNEL); + if (!sensor_settings) + return -ENOMEM; + + sd->gspca_dev.cam.cam_mode = vv6410_mode; + sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode); + sd->desc.ctrls = vv6410_ctrl; + sd->desc.nctrls = ARRAY_SIZE(vv6410_ctrl); + + for (i = 0; i < sd->desc.nctrls; i++) + sensor_settings[i] = vv6410_ctrl[i].qctrl.default_value; + sd->sensor_priv = sensor_settings; + return 0; + } + return -ENODEV; +} + +static int vv6410_init(struct sd *sd) +{ + int err = 0, i; + s32 *sensor_settings = sd->sensor_priv; + + 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)); + if (err < 0) + return err; + + err = vv6410_set_exposure(&sd->gspca_dev, + sensor_settings[EXPOSURE_IDX]); + if (err < 0) + return err; + + err = vv6410_set_analog_gain(&sd->gspca_dev, + sensor_settings[GAIN_IDX]); + + return (err < 0) ? err : 0; +} + +static void vv6410_disconnect(struct sd *sd) +{ + sd->sensor = NULL; + kfree(sd->sensor_priv); +} + +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_get_hflip(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[HFLIP_IDX]; + PDEBUG(D_V4L2, "Read horizontal flip %d", *val); + + return 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; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[HFLIP_IDX] = val; + 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_get_vflip(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[VFLIP_IDX]; + PDEBUG(D_V4L2, "Read vertical flip %d", *val); + + return 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; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[VFLIP_IDX] = val; + 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_get_analog_gain(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[GAIN_IDX]; + + PDEBUG(D_V4L2, "Read analog gain %d", *val); + + return 0; +} + +static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[GAIN_IDX] = val; + 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_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[EXPOSURE_IDX]; + + PDEBUG(D_V4L2, "Read exposure %d", *val); + + return 0; +} + +static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + unsigned int fine, coarse; + + sensor_settings[EXPOSURE_IDX] = val; + + 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; +} |