diff options
Diffstat (limited to 'drivers/media/video/gspca/stv06xx/stv06xx_pb0100.c')
| -rw-r--r-- | drivers/media/video/gspca/stv06xx/stv06xx_pb0100.c | 575 |
1 files changed, 575 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_pb0100.c b/drivers/media/video/gspca/stv06xx/stv06xx_pb0100.c new file mode 100644 index 00000000..26f14fc4 --- /dev/null +++ b/drivers/media/video/gspca/stv06xx/stv06xx_pb0100.c @@ -0,0 +1,575 @@ +/* + * 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 + */ + +/* + * The spec file for the PB-0100 suggests the following for best quality + * images after the sensor has been reset : + * + * PB_ADCGAINL = R60 = 0x03 (3 dec) : sets low reference of ADC + to produce good black level + * PB_PREADCTRL = R32 = 0x1400 (5120 dec) : Enables global gain changes + through R53 + * PB_ADCMINGAIN = R52 = 0x10 (16 dec) : Sets the minimum gain for + auto-exposure + * PB_ADCGLOBALGAIN = R53 = 0x10 (16 dec) : Sets the global gain + * PB_EXPGAIN = R14 = 0x11 (17 dec) : Sets the auto-exposure value + * PB_UPDATEINT = R23 = 0x02 (2 dec) : Sets the speed on + auto-exposure routine + * PB_CFILLIN = R5 = 0x0E (14 dec) : Sets the frame rate + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include "stv06xx_pb0100.h" + +static const struct ctrl pb0100_ctrl[] = { +#define GAIN_IDX 0 + { + { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gain", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 128 + }, + .set = pb0100_set_gain, + .get = pb0100_get_gain + }, +#define RED_BALANCE_IDX 1 + { + { + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Red Balance", + .minimum = -255, + .maximum = 255, + .step = 1, + .default_value = 0 + }, + .set = pb0100_set_red_balance, + .get = pb0100_get_red_balance + }, +#define BLUE_BALANCE_IDX 2 + { + { + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Blue Balance", + .minimum = -255, + .maximum = 255, + .step = 1, + .default_value = 0 + }, + .set = pb0100_set_blue_balance, + .get = pb0100_get_blue_balance + }, +#define EXPOSURE_IDX 3 + { + { + .id = V4L2_CID_EXPOSURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Exposure", + .minimum = 0, + .maximum = 511, + .step = 1, + .default_value = 12 + }, + .set = pb0100_set_exposure, + .get = pb0100_get_exposure + }, +#define AUTOGAIN_IDX 4 + { + { + .id = V4L2_CID_AUTOGAIN, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Automatic Gain and Exposure", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1 + }, + .set = pb0100_set_autogain, + .get = pb0100_get_autogain + }, +#define AUTOGAIN_TARGET_IDX 5 + { + { + .id = V4L2_CTRL_CLASS_USER + 0x1000, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Automatic Gain Target", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 128 + }, + .set = pb0100_set_autogain_target, + .get = pb0100_get_autogain_target + }, +#define NATURAL_IDX 6 + { + { + .id = V4L2_CTRL_CLASS_USER + 0x1001, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Natural Light Source", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 1 + }, + .set = pb0100_set_natural, + .get = pb0100_get_natural + } +}; + +static struct v4l2_pix_format pb0100_mode[] = { +/* low res / subsample modes disabled as they are only half res horizontal, + halving the vertical resolution does not seem to work */ + { + 320, + 240, + V4L2_PIX_FMT_SGRBG8, + V4L2_FIELD_NONE, + .sizeimage = 320 * 240, + .bytesperline = 320, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = PB0100_CROP_TO_VGA + }, + { + 352, + 288, + V4L2_PIX_FMT_SGRBG8, + V4L2_FIELD_NONE, + .sizeimage = 352 * 288, + .bytesperline = 352, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0 + } +}; + +static int pb0100_probe(struct sd *sd) +{ + u16 sensor; + int i, err; + s32 *sensor_settings; + + err = stv06xx_read_sensor(sd, PB_IDENT, &sensor); + + if (err < 0) + return -ENODEV; + + if ((sensor >> 8) == 0x64) { + sensor_settings = kmalloc( + ARRAY_SIZE(pb0100_ctrl) * sizeof(s32), + GFP_KERNEL); + if (!sensor_settings) + return -ENOMEM; + + pr_info("Photobit pb0100 sensor detected\n"); + + sd->gspca_dev.cam.cam_mode = pb0100_mode; + sd->gspca_dev.cam.nmodes = ARRAY_SIZE(pb0100_mode); + sd->desc.ctrls = pb0100_ctrl; + sd->desc.nctrls = ARRAY_SIZE(pb0100_ctrl); + for (i = 0; i < sd->desc.nctrls; i++) + sensor_settings[i] = pb0100_ctrl[i].qctrl.default_value; + sd->sensor_priv = sensor_settings; + + return 0; + } + + return -ENODEV; +} + +static int pb0100_start(struct sd *sd) +{ + int err, packet_size, max_packet_size; + struct usb_host_interface *alt; + struct usb_interface *intf; + struct cam *cam = &sd->gspca_dev.cam; + s32 *sensor_settings = sd->sensor_priv; + u32 mode = cam->cam_mode[sd->gspca_dev.curr_mode].priv; + + intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface); + alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt); + if (!alt) + return -ENODEV; + packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); + + /* If we don't have enough bandwidth use a lower framerate */ + max_packet_size = sd->sensor->max_packet_size[sd->gspca_dev.curr_mode]; + if (packet_size < max_packet_size) + stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1)); + else + stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(5)|BIT(3)|BIT(1)); + + /* Setup sensor window */ + if (mode & PB0100_CROP_TO_VGA) { + stv06xx_write_sensor(sd, PB_RSTART, 30); + stv06xx_write_sensor(sd, PB_CSTART, 20); + stv06xx_write_sensor(sd, PB_RWSIZE, 240 - 1); + stv06xx_write_sensor(sd, PB_CWSIZE, 320 - 1); + } else { + stv06xx_write_sensor(sd, PB_RSTART, 8); + stv06xx_write_sensor(sd, PB_CSTART, 4); + stv06xx_write_sensor(sd, PB_RWSIZE, 288 - 1); + stv06xx_write_sensor(sd, PB_CWSIZE, 352 - 1); + } + + if (mode & PB0100_SUBSAMPLE) { + stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02); /* Wrong, FIXME */ + 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); + /* larger -> slower */ + stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x20); + } + + /* set_gain also sets red and blue balance */ + pb0100_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]); + pb0100_set_exposure(&sd->gspca_dev, sensor_settings[EXPOSURE_IDX]); + pb0100_set_autogain_target(&sd->gspca_dev, + sensor_settings[AUTOGAIN_TARGET_IDX]); + pb0100_set_autogain(&sd->gspca_dev, sensor_settings[AUTOGAIN_IDX]); + + err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)|BIT(1)); + PDEBUG(D_STREAM, "Started stream, status: %d", err); + + return (err < 0) ? err : 0; +} + +static int pb0100_stop(struct sd *sd) +{ + int err; + + err = stv06xx_write_sensor(sd, PB_ABORTFRAME, 1); + + if (err < 0) + goto out; + + /* Set bit 1 to zero */ + err = stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)); + + PDEBUG(D_STREAM, "Halting stream"); +out: + return (err < 0) ? err : 0; +} + +static void pb0100_disconnect(struct sd *sd) +{ + sd->sensor = NULL; + kfree(sd->sensor_priv); +} + +/* FIXME: Sort the init commands out and put them into tables, + this is only for getting the camera to work */ +/* FIXME: No error handling for now, + add this once the init has been converted to proper tables */ +static int pb0100_init(struct sd *sd) +{ + stv06xx_write_bridge(sd, STV_REG00, 1); + stv06xx_write_bridge(sd, STV_SCAN_RATE, 0); + + /* Reset sensor */ + stv06xx_write_sensor(sd, PB_RESET, 1); + stv06xx_write_sensor(sd, PB_RESET, 0); + + /* Disable chip */ + stv06xx_write_sensor(sd, PB_CONTROL, BIT(5)|BIT(3)); + + /* Gain stuff...*/ + stv06xx_write_sensor(sd, PB_PREADCTRL, BIT(12)|BIT(10)|BIT(6)); + stv06xx_write_sensor(sd, PB_ADCGLOBALGAIN, 12); + + /* Set up auto-exposure */ + /* ADC VREF_HI new setting for a transition + from the Expose1 to the Expose2 setting */ + stv06xx_write_sensor(sd, PB_R28, 12); + /* gain max for autoexposure */ + stv06xx_write_sensor(sd, PB_ADCMAXGAIN, 180); + /* gain min for autoexposure */ + stv06xx_write_sensor(sd, PB_ADCMINGAIN, 12); + /* Maximum frame integration time (programmed into R8) + allowed for auto-exposure routine */ + stv06xx_write_sensor(sd, PB_R54, 3); + /* Minimum frame integration time (programmed into R8) + allowed for auto-exposure routine */ + stv06xx_write_sensor(sd, PB_R55, 0); + stv06xx_write_sensor(sd, PB_UPDATEINT, 1); + /* R15 Expose0 (maximum that auto-exposure may use) */ + stv06xx_write_sensor(sd, PB_R15, 800); + /* R17 Expose2 (minimum that auto-exposure may use) */ + stv06xx_write_sensor(sd, PB_R17, 10); + + stv06xx_write_sensor(sd, PB_EXPGAIN, 0); + + /* 0x14 */ + stv06xx_write_sensor(sd, PB_VOFFSET, 0); + /* 0x0D */ + stv06xx_write_sensor(sd, PB_ADCGAINH, 11); + /* Set black level (important!) */ + stv06xx_write_sensor(sd, PB_ADCGAINL, 0); + + /* ??? */ + stv06xx_write_bridge(sd, STV_REG00, 0x11); + stv06xx_write_bridge(sd, STV_REG03, 0x45); + stv06xx_write_bridge(sd, STV_REG04, 0x07); + + /* Scan/timing for the sensor */ + stv06xx_write_sensor(sd, PB_ROWSPEED, BIT(4)|BIT(3)|BIT(1)); + stv06xx_write_sensor(sd, PB_CFILLIN, 14); + stv06xx_write_sensor(sd, PB_VBL, 0); + stv06xx_write_sensor(sd, PB_FINTTIME, 0); + stv06xx_write_sensor(sd, PB_RINTTIME, 123); + + stv06xx_write_bridge(sd, STV_REG01, 0xc2); + stv06xx_write_bridge(sd, STV_REG02, 0xb0); + return 0; +} + +static int pb0100_dump(struct sd *sd) +{ + return 0; +} + +static int pb0100_get_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]; + + return 0; +} + +static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + if (sensor_settings[AUTOGAIN_IDX]) + return -EBUSY; + + sensor_settings[GAIN_IDX] = val; + err = stv06xx_write_sensor(sd, PB_G1GAIN, val); + if (!err) + err = stv06xx_write_sensor(sd, PB_G2GAIN, val); + PDEBUG(D_V4L2, "Set green gain to %d, status: %d", val, err); + + if (!err) + err = pb0100_set_red_balance(gspca_dev, + sensor_settings[RED_BALANCE_IDX]); + if (!err) + err = pb0100_set_blue_balance(gspca_dev, + sensor_settings[BLUE_BALANCE_IDX]); + + return err; +} + +static int pb0100_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[RED_BALANCE_IDX]; + + return 0; +} + +static int pb0100_set_red_balance(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + if (sensor_settings[AUTOGAIN_IDX]) + return -EBUSY; + + sensor_settings[RED_BALANCE_IDX] = val; + val += sensor_settings[GAIN_IDX]; + if (val < 0) + val = 0; + else if (val > 255) + val = 255; + + err = stv06xx_write_sensor(sd, PB_RGAIN, val); + PDEBUG(D_V4L2, "Set red gain to %d, status: %d", val, err); + + return err; +} + +static int pb0100_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[BLUE_BALANCE_IDX]; + + return 0; +} + +static int pb0100_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + if (sensor_settings[AUTOGAIN_IDX]) + return -EBUSY; + + sensor_settings[BLUE_BALANCE_IDX] = val; + val += sensor_settings[GAIN_IDX]; + if (val < 0) + val = 0; + else if (val > 255) + val = 255; + + err = stv06xx_write_sensor(sd, PB_BGAIN, val); + PDEBUG(D_V4L2, "Set blue gain to %d, status: %d", val, err); + + return err; +} + +static int pb0100_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]; + + return 0; +} + +static int pb0100_set_exposure(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + if (sensor_settings[AUTOGAIN_IDX]) + return -EBUSY; + + sensor_settings[EXPOSURE_IDX] = val; + err = stv06xx_write_sensor(sd, PB_RINTTIME, val); + PDEBUG(D_V4L2, "Set exposure to %d, status: %d", val, err); + + return err; +} + +static int pb0100_get_autogain(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[AUTOGAIN_IDX]; + + return 0; +} + +static int pb0100_set_autogain(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[AUTOGAIN_IDX] = val; + if (sensor_settings[AUTOGAIN_IDX]) { + if (sensor_settings[NATURAL_IDX]) + val = BIT(6)|BIT(4)|BIT(0); + else + val = BIT(4)|BIT(0); + } else + val = 0; + + err = stv06xx_write_sensor(sd, PB_EXPGAIN, val); + PDEBUG(D_V4L2, "Set autogain to %d (natural: %d), status: %d", + sensor_settings[AUTOGAIN_IDX], sensor_settings[NATURAL_IDX], + err); + + return err; +} + +static int pb0100_get_autogain_target(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[AUTOGAIN_TARGET_IDX]; + + return 0; +} + +static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val) +{ + int err, totalpixels, brightpixels, darkpixels; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[AUTOGAIN_TARGET_IDX] = val; + + /* Number of pixels counted by the sensor when subsampling the pixels. + * Slightly larger than the real value to avoid oscillation */ + totalpixels = gspca_dev->width * gspca_dev->height; + totalpixels = totalpixels/(8*8) + totalpixels/(64*64); + + brightpixels = (totalpixels * val) >> 8; + darkpixels = totalpixels - brightpixels; + err = stv06xx_write_sensor(sd, PB_R21, brightpixels); + if (!err) + err = stv06xx_write_sensor(sd, PB_R22, darkpixels); + + PDEBUG(D_V4L2, "Set autogain target to %d, status: %d", val, err); + + return err; +} + +static int pb0100_get_natural(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[NATURAL_IDX]; + + return 0; +} + +static int pb0100_set_natural(struct gspca_dev *gspca_dev, __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[NATURAL_IDX] = val; + + return pb0100_set_autogain(gspca_dev, sensor_settings[AUTOGAIN_IDX]); +} |