drivers/media/video/gspca/stv06xx/stv06xx_vv6410.c

   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  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * P/N 861037:      Sensor HDCS1000        ASIC STV0600
  22  * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
  23  * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
  24  * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
  25  * P/N 861075-0040: Sensor HDCS1000        ASIC
  26  * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
  27  * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
  28  */
  29
  30 #include "stv06xx_vv6410.h"
  31
  32 static int vv6410_probe(struct sd *sd)
  33 {
  34         u16 data;
  35         int err;
  36
  37         err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
  38
  39         if (err < 0)
  40                 return -ENODEV;
  41
  42         if (data == 0x19) {
  43                 info("vv6410 sensor detected");
  44
  45                 sd->gspca_dev.cam.cam_mode = stv06xx_sensor_vv6410.modes;
  46                 sd->gspca_dev.cam.nmodes = stv06xx_sensor_vv6410.nmodes;
  47                 sd->desc.ctrls = stv06xx_sensor_vv6410.ctrls;
  48                 sd->desc.nctrls = stv06xx_sensor_vv6410.nctrls;
  49                 return 0;
  50         }
  51
  52         return -ENODEV;
  53 }
  54
  55 static int vv6410_init(struct sd *sd)
  56 {
  57         int err = 0, i;
  58
  59         for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++) {
  60                 /* if NULL then len contains single value */
  61                 if (stv_bridge_init[i].data == NULL) {
  62                         err = stv06xx_write_bridge(sd,
  63                                 stv_bridge_init[i].start,
  64                                 stv_bridge_init[i].len);
  65                 } else {
  66                         int j;
  67                         for (j = 0; j < stv_bridge_init[i].len; j++)
  68                                 err = stv06xx_write_bridge(sd,
  69                                         stv_bridge_init[i].start + j,
  70                                         stv_bridge_init[i].data[j]);
  71                 }
  72         }
  73
  74         if (err < 0)
  75                 return err;
  76
  77         err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
  78                                          ARRAY_SIZE(vv6410_sensor_init));
  79
  80         return (err < 0) ? err : 0;
  81 }
  82
  83 static int vv6410_start(struct sd *sd)
  84 {
  85         int err;
  86         struct cam *cam = &sd->gspca_dev.cam;
  87         u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
  88
  89         if (priv & VV6410_CROP_TO_QVGA) {
  90                 PDEBUG(D_CONF, "Cropping to QVGA");
  91                 stv06xx_write_sensor(sd, VV6410_XENDH, 320 - 1);
  92                 stv06xx_write_sensor(sd, VV6410_YENDH, 240 - 1);
  93         } else {
  94                 stv06xx_write_sensor(sd, VV6410_XENDH, 360 - 1);
  95                 stv06xx_write_sensor(sd, VV6410_YENDH, 294 - 1);
  96         }
  97
  98         if (priv & VV6410_SUBSAMPLE) {
  99                 PDEBUG(D_CONF, "Enabling subsampling");
 100                 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
 101                 stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
 102
 103                 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
 104         } else {
 105                 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
 106                 stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
 107
 108                 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x20);
 109         }
 110
 111         /* Turn on LED */
 112         err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
 113         if (err < 0)
 114                 return err;
 115
 116         err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
 117         if (err < 0)
 118                 return err;
 119
 120         PDEBUG(D_STREAM, "Starting stream");
 121
 122         return 0;
 123 }
 124
 125 static int vv6410_stop(struct sd *sd)
 126 {
 127         int err;
 128
 129         /* Turn off LED */
 130         err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
 131         if (err < 0)
 132                 return err;
 133
 134         err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
 135         if (err < 0)
 136                 return err;
 137
 138         PDEBUG(D_STREAM, "Halting stream");
 139
 140         return (err < 0) ? err : 0;
 141 }
 142
 143 static int vv6410_dump(struct sd *sd)
 144 {
 145         u8 i;
 146         int err = 0;
 147
 148         info("Dumping all vv6410 sensor registers");
 149         for (i = 0; i < 0xff && !err; i++) {
 150                 u16 data;
 151                 err = stv06xx_read_sensor(sd, i, &data);
 152                 info("Register 0x%x contained 0x%x", i, data);
 153         }
 154         return (err < 0) ? err : 0;
 155 }
 156
 157 static int vv6410_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
 158 {
 159         int err;
 160         u16 i2c_data;
 161         struct sd *sd = (struct sd *) gspca_dev;
 162
 163         err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
 164
 165         *val = (i2c_data & VV6410_HFLIP) ? 1 : 0;
 166
 167         PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
 168
 169         return (err < 0) ? err : 0;
 170 }
 171
 172 static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
 173 {
 174         int err;
 175         u16 i2c_data;
 176         struct sd *sd = (struct sd *) gspca_dev;
 177         err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
 178         if (err < 0)
 179                 return err;
 180
 181         if (val)
 182                 i2c_data |= VV6410_HFLIP;
 183         else
 184                 i2c_data &= ~VV6410_HFLIP;
 185
 186         PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
 187         err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
 188
 189         return (err < 0) ? err : 0;
 190 }
 191
 192 static int vv6410_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
 193 {
 194         int err;
 195         u16 i2c_data;
 196         struct sd *sd = (struct sd *) gspca_dev;
 197
 198         err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
 199
 200         *val = (i2c_data & VV6410_VFLIP) ? 1 : 0;
 201
 202         PDEBUG(D_V4L2, "Read vertical flip %d", *val);
 203
 204         return (err < 0) ? err : 0;
 205 }
 206
 207 static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
 208 {
 209         int err;
 210         u16 i2c_data;
 211         struct sd *sd = (struct sd *) gspca_dev;
 212         err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
 213         if (err < 0)
 214                 return err;
 215
 216         if (val)
 217                 i2c_data |= VV6410_VFLIP;
 218         else
 219                 i2c_data &= ~VV6410_VFLIP;
 220
 221         PDEBUG(D_V4L2, "Set vertical flip to %d", val);
 222         err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
 223
 224         return (err < 0) ? err : 0;
 225 }
 226
 227 static int vv6410_get_analog_gain(struct gspca_dev *gspca_dev, __s32 *val)
 228 {
 229         int err;
 230         u16 i2c_data;
 231         struct sd *sd = (struct sd *) gspca_dev;
 232
 233         err = stv06xx_read_sensor(sd, VV6410_ANALOGGAIN, &i2c_data);
 234
 235         *val = i2c_data & 0xf;
 236
 237         PDEBUG(D_V4L2, "Read analog gain %d", *val);
 238
 239         return (err < 0) ? err : 0;
 240 }
 241
 242 static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
 243 {
 244         int err;
 245         struct sd *sd = (struct sd *) gspca_dev;
 246
 247         PDEBUG(D_V4L2, "Set analog gain to %d", val);
 248         err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
 249
 250         return (err < 0) ? err : 0;
 251 }