LXR linux/drivers/media/usb/gspca/stv06xx/stv06xx

   1/*
   2 * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
   3 *                    Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
   4 * Copyright (c) 2002, 2003 Tuukka Toivonen
   5 * Copyright (c) 2008 Erik Andrén
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation; either version 2 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * P/N 861037:      Sensor HDCS1000        ASIC STV0600
  18 * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
  19 * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
  20 * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
  21 * P/N 861075-0040: Sensor HDCS1000        ASIC
  22 * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
  23 * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
  24 */
  25
  26#ifndef STV06XX_VV6410_H_
  27#define STV06XX_VV6410_H_
  28
  29#include "stv06xx_sensor.h"
  30
  31#define VV6410_COLS                     416
  32#define VV6410_ROWS                     320
  33
  34/* Status registers */
  35/* Chip identification number including revision indicator */
  36#define VV6410_DEVICEH                  0x00
  37#define VV6410_DEVICEL                  0x01
  38
  39/* User can determine whether timed I2C data
  40   has been consumed by interrogating flag states */
  41#define VV6410_STATUS0                  0x02
  42
  43/* Current line counter value */
  44#define VV6410_LINECOUNTH               0x03
  45#define VV6410_LINECOUNTL               0x04
  46
  47/* End x coordinate of image size */
  48#define VV6410_XENDH                    0x05
  49#define VV6410_XENDL                    0x06
  50
  51/* End y coordinate of image size */
  52#define VV6410_YENDH                    0x07
  53#define VV6410_YENDL                    0x08
  54
  55/* This is the average pixel value returned from the
  56   dark line offset cancellation algorithm */
  57#define VV6410_DARKAVGH                 0x09
  58#define VV6410_DARKAVGL                 0x0a
  59
  60/* This is the average pixel value returned from the
  61   black line offset cancellation algorithm  */
  62#define VV6410_BLACKAVGH                0x0b
  63#define VV6410_BLACKAVGL                0x0c
  64
  65/* Flags to indicate whether the x or y image coordinates have been clipped */
  66#define VV6410_STATUS1                  0x0d
  67
  68/* Setup registers */
  69
  70/* Low-power/sleep modes & video timing */
  71#define VV6410_SETUP0                   0x10
  72
  73/* Various parameters */
  74#define VV6410_SETUP1                   0x11
  75
  76/* Contains pixel counter reset value used by external sync */
  77#define VV6410_SYNCVALUE                0x12
  78
  79/* Frame grabbing modes (FST, LST and QCK) */
  80#define VV6410_FGMODES                  0x14
  81
  82/* FST and QCK mapping modes. */
  83#define VV6410_PINMAPPING               0x15
  84
  85/* Data resolution */
  86#define VV6410_DATAFORMAT               0x16
  87
  88/* Output coding formats */
  89#define VV6410_OPFORMAT                 0x17
  90
  91/* Various mode select bits */
  92#define VV6410_MODESELECT               0x18
  93
  94/* Exposure registers */
  95/* Fine exposure. */
  96#define VV6410_FINEH                    0x20
  97#define VV6410_FINEL                    0x21
  98
  99/* Coarse exposure */
 100#define VV6410_COARSEH                  0x22
 101#define VV6410_COARSEL                  0x23
 102
 103/* Analog gain setting */
 104#define VV6410_ANALOGGAIN               0x24
 105
 106/* Clock division */
 107#define VV6410_CLKDIV                   0x25
 108
 109/* Dark line offset cancellation value */
 110#define VV6410_DARKOFFSETH              0x2c
 111#define VV6410_DARKOFFSETL              0x2d
 112
 113/* Dark line offset cancellation enable */
 114#define VV6410_DARKOFFSETSETUP          0x2e
 115
 116/* Video timing registers */
 117/* Line Length (Pixel Clocks) */
 118#define VV6410_LINELENGTHH              0x52
 119#define VV6410_LINELENGTHL              0x53
 120
 121/* X-co-ordinate of top left corner of region of interest (x-offset) */
 122#define VV6410_XOFFSETH                 0x57
 123#define VV6410_XOFFSETL                 0x58
 124
 125/* Y-coordinate of top left corner of region of interest (y-offset) */
 126#define VV6410_YOFFSETH                 0x59
 127#define VV6410_YOFFSETL                 0x5a
 128
 129/* Field length (Lines) */
 130#define VV6410_FIELDLENGTHH             0x61
 131#define VV6410_FIELDLENGTHL             0x62
 132
 133/* System registers */
 134/* Black offset cancellation default value */
 135#define VV6410_BLACKOFFSETH             0x70
 136#define VV6410_BLACKOFFSETL             0x71
 137
 138/* Black offset cancellation setup */
 139#define VV6410_BLACKOFFSETSETUP         0x72
 140
 141/* Analog Control Register 0 */
 142#define VV6410_CR0                      0x75
 143
 144/* Analog Control Register 1 */
 145#define VV6410_CR1                      0x76
 146
 147/* ADC Setup Register */
 148#define VV6410_AS0                      0x77
 149
 150/* Analog Test Register */
 151#define VV6410_AT0                      0x78
 152
 153/* Audio Amplifier Setup Register */
 154#define VV6410_AT1                      0x79
 155
 156#define VV6410_HFLIP                    (1 << 3)
 157#define VV6410_VFLIP                    (1 << 4)
 158
 159#define VV6410_LOW_POWER_MODE           (1 << 0)
 160#define VV6410_SOFT_RESET               (1 << 2)
 161#define VV6410_PAL_25_FPS               (0 << 3)
 162
 163#define VV6410_CLK_DIV_2                (1 << 1)
 164
 165#define VV6410_FINE_EXPOSURE            320
 166#define VV6410_COARSE_EXPOSURE          192
 167#define VV6410_DEFAULT_GAIN             5
 168
 169#define VV6410_SUBSAMPLE                0x01
 170#define VV6410_CROP_TO_QVGA             0x02
 171
 172#define VV6410_CIF_LINELENGTH           415
 173
 174static int vv6410_probe(struct sd *sd);
 175static int vv6410_start(struct sd *sd);
 176static int vv6410_init(struct sd *sd);
 177static int vv6410_init_controls(struct sd *sd);
 178static int vv6410_stop(struct sd *sd);
 179static int vv6410_dump(struct sd *sd);
 180
 181/* V4L2 controls supported by the driver */
 182static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
 183static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
 184static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val);
 185static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
 186
 187const struct stv06xx_sensor stv06xx_sensor_vv6410 = {
 188        .name = "ST VV6410",
 189        .i2c_flush = 5,
 190        .i2c_addr = 0x20,
 191        .i2c_len = 1,
 192        /* FIXME (see if we can lower packet_size-s, needs testing, and also
 193           adjusting framerate when the bandwidth gets lower) */
 194        .min_packet_size = { 1023 },
 195        .max_packet_size = { 1023 },
 196        .init = vv6410_init,
 197        .init_controls = vv6410_init_controls,
 198        .probe = vv6410_probe,
 199        .start = vv6410_start,
 200        .stop = vv6410_stop,
 201        .dump = vv6410_dump,
 202};
 203
 204/* If NULL, only single value to write, stored in len */
 205struct stv_init {
 206        u16 addr;
 207        u8 data;
 208};
 209
 210static const struct stv_init stv_bridge_init[] = {
 211        /* This reg is written twice. Some kind of reset? */
 212        {STV_RESET, 0x80},
 213        {STV_RESET, 0x00},
 214        {STV_SCAN_RATE, 0x00},
 215        {STV_I2C_FLUSH, 0x04},
 216        {STV_REG00, 0x0b},
 217        {STV_REG01, 0xa7},
 218        {STV_REG02, 0xb7},
 219        {STV_REG03, 0x00},
 220        {STV_REG04, 0x00},
 221        {0x1536, 0x02},
 222        {0x1537, 0x00},
 223        {0x1538, 0x60},
 224        {0x1539, 0x01},
 225        {0x153a, 0x20},
 226        {0x153b, 0x01},
 227};
 228
 229static const u8 vv6410_sensor_init[][2] = {
 230        /* Setup registers */
 231        {VV6410_SETUP0, VV6410_SOFT_RESET},
 232        {VV6410_SETUP0, VV6410_LOW_POWER_MODE},
 233        /* Use shuffled read-out mode */
 234        {VV6410_SETUP1, BIT(6)},
 235        /* All modes to 1, FST, Fast QCK, Free running QCK, Free running LST, FST will qualify visible pixels */
 236        {VV6410_FGMODES, BIT(6) | BIT(4) | BIT(2) | BIT(0)},
 237        {VV6410_PINMAPPING, 0x00},
 238        /* Pre-clock generator divide off */
 239        {VV6410_DATAFORMAT, BIT(7) | BIT(0)},
 240
 241        {VV6410_CLKDIV, VV6410_CLK_DIV_2},
 242
 243        /* System registers */
 244        /* Enable voltage doubler */
 245        {VV6410_AS0, BIT(6) | BIT(4) | BIT(3) | BIT(2) | BIT(1)},
 246        {VV6410_AT0, 0x00},
 247        /* Power up audio, differential */
 248        {VV6410_AT1, BIT(4) | BIT(0)},
 249};
 250
 251#endif
 252