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 struct v4l2_pix_format vv6410_mode[] = {
  33         {
  34                 356,
  35                 292,
  36                 V4L2_PIX_FMT_SGRBG8,
  37                 V4L2_FIELD_NONE,
  38                 .sizeimage = 356 * 292,
  39                 .bytesperline = 356,
  40                 .colorspace = V4L2_COLORSPACE_SRGB,
  41                 .priv = 0
  42         }
  43 };
  44
  45 static const struct ctrl vv6410_ctrl[] = {
  46 #define HFLIP_IDX 0
  47         {
  48                 {
  49                         .id             = V4L2_CID_HFLIP,
  50                         .type           = V4L2_CTRL_TYPE_BOOLEAN,
  51                         .name           = "horizontal flip",
  52                         .minimum        = 0,
  53                         .maximum        = 1,
  54                         .step           = 1,
  55                         .default_value  = 0
  56                 },
  57                 .set = vv6410_set_hflip,
  58                 .get = vv6410_get_hflip
  59         },
  60 #define VFLIP_IDX 1
  61         {
  62                 {
  63                         .id             = V4L2_CID_VFLIP,
  64                         .type           = V4L2_CTRL_TYPE_BOOLEAN,
  65                         .name           = "vertical flip",
  66                         .minimum        = 0,
  67                         .maximum        = 1,
  68                         .step           = 1,
  69                         .default_value  = 0
  70                 },
  71                 .set = vv6410_set_vflip,
  72                 .get = vv6410_get_vflip
  73         },
  74 #define GAIN_IDX 2
  75         {
  76                 {
  77                         .id             = V4L2_CID_GAIN,
  78                         .type           = V4L2_CTRL_TYPE_INTEGER,
  79                         .name           = "analog gain",
  80                         .minimum        = 0,
  81                         .maximum        = 15,
  82                         .step           = 1,
  83                         .default_value  = 0
  84                 },
  85                 .set = vv6410_set_analog_gain,
  86                 .get = vv6410_get_analog_gain
  87         }
  88 };
  89
  90 static int vv6410_probe(struct sd *sd)
  91 {
  92         u16 data;
  93         int err, i;
  94         s32 *sensor_settings;
  95
  96         err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
  97         if (err < 0)
  98                 return -ENODEV;
  99
 100         if (data == 0x19) {
 101                 info("vv6410 sensor detected");
 102
 103                 sensor_settings = kmalloc(ARRAY_SIZE(vv6410_ctrl) * sizeof(s32),
 104                                           GFP_KERNEL);
 105                 if (!sensor_settings)
 106                         return -ENOMEM;
 107
 108                 sd->gspca_dev.cam.cam_mode = vv6410_mode;
 109                 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
 110                 sd->desc.ctrls = vv6410_ctrl;
 111                 sd->desc.nctrls = ARRAY_SIZE(vv6410_ctrl);
 112
 113                 for (i = 0; i < sd->desc.nctrls; i++)
 114                         sensor_settings[i] = vv6410_ctrl[i].qctrl.default_value;
 115                 sd->sensor_priv = sensor_settings;
 116                 return 0;
 117         }
 118         return -ENODEV;
 119 }
 120
 121 static int vv6410_init(struct sd *sd)
 122 {
 123         int err = 0, i;
 124
 125         for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++) {
 126                 /* if NULL then len contains single value */
 127                 if (stv_bridge_init[i].data == NULL) {
 128                         err = stv06xx_write_bridge(sd,
 129                                 stv_bridge_init[i].start,
 130                                 stv_bridge_init[i].len);
 131                 } else {
 132                         int j;
 133                         for (j = 0; j < stv_bridge_init[i].len; j++)
 134                                 err = stv06xx_write_bridge(sd,
 135                                         stv_bridge_init[i].start + j,
 136                                         stv_bridge_init[i].data[j]);
 137                 }
 138         }
 139
 140         if (err < 0)
 141                 return err;
 142
 143         err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
 144                                          ARRAY_SIZE(vv6410_sensor_init));
 145
 146         return (err < 0) ? err : 0;
 147 }
 148
 149 static void vv6410_disconnect(struct sd *sd)
 150 {
 151         sd->sensor = NULL;
 152         kfree(sd->sensor_priv);
 153 }
 154
 155 static int vv6410_start(struct sd *sd)
 156 {
 157         int err;
 158         struct cam *cam = &sd->gspca_dev.cam;
 159         u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
 160
 161         if (priv & VV6410_CROP_TO_QVGA) {
 162                 PDEBUG(D_CONF, "Cropping to QVGA");
 163                 stv06xx_write_sensor(sd, VV6410_XENDH, 320 - 1);
 164                 stv06xx_write_sensor(sd, VV6410_YENDH, 240 - 1);
 165         } else {
 166                 stv06xx_write_sensor(sd, VV6410_XENDH, 360 - 1);
 167                 stv06xx_write_sensor(sd, VV6410_YENDH, 294 - 1);
 168         }
 169
 170         if (priv & VV6410_SUBSAMPLE) {
 171                 PDEBUG(D_CONF, "Enabling subsampling");
 172                 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
 173                 stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
 174
 175                 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
 176         } else {
 177                 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
 178                 stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
 179
 180                 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x20);
 181         }
 182
 183         /* Turn on LED */
 184         err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
 185         if (err < 0)
 186                 return err;
 187
 188         err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
 189         if (err < 0)
 190                 return err;
 191
 192         PDEBUG(D_STREAM, "Starting stream");
 193
 194         return 0;
 195 }
 196
 197 static int vv6410_stop(struct sd *sd)
 198 {
 199         int err;
 200
 201         /* Turn off LED */
 202         err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
 203         if (err < 0)
 204                 return err;
 205
 206         err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
 207         if (err < 0)
 208                 return err;
 209
 210         PDEBUG(D_STREAM, "Halting stream");
 211
 212         return (err < 0) ? err : 0;
 213 }
 214
 215 static int vv6410_dump(struct sd *sd)
 216 {
 217         u8 i;
 218         int err = 0;
 219
 220         info("Dumping all vv6410 sensor registers");
 221         for (i = 0; i < 0xff && !err; i++) {
 222                 u16 data;
 223                 err = stv06xx_read_sensor(sd, i, &data);
 224                 info("Register 0x%x contained 0x%x", i, data);
 225         }
 226         return (err < 0) ? err : 0;
 227 }
 228
 229 static int vv6410_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
 230 {
 231         struct sd *sd = (struct sd *) gspca_dev;
 232         s32 *sensor_settings = sd->sensor_priv;
 233
 234         *val = sensor_settings[HFLIP_IDX];
 235         PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
 236
 237         return 0;
 238 }
 239
 240 static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
 241 {
 242         int err;
 243         u16 i2c_data;
 244         struct sd *sd = (struct sd *) gspca_dev;
 245         s32 *sensor_settings = sd->sensor_priv;
 246
 247         sensor_settings[HFLIP_IDX] = val;
 248         err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
 249         if (err < 0)
 250                 return err;
 251
 252         if (val)
 253                 i2c_data |= VV6410_HFLIP;
 254         else
 255                 i2c_data &= ~VV6410_HFLIP;
 256
 257         PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
 258         err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
 259
 260         return (err < 0) ? err : 0;
 261 }
 262
 263 static int vv6410_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
 264 {
 265         struct sd *sd = (struct sd *) gspca_dev;
 266         s32 *sensor_settings = sd->sensor_priv;
 267
 268         *val = sensor_settings[VFLIP_IDX];
 269         PDEBUG(D_V4L2, "Read vertical flip %d", *val);
 270
 271         return 0;
 272 }
 273
 274 static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
 275 {
 276         int err;
 277         u16 i2c_data;
 278         struct sd *sd = (struct sd *) gspca_dev;
 279         s32 *sensor_settings = sd->sensor_priv;
 280
 281         sensor_settings[VFLIP_IDX] = val;
 282         err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
 283         if (err < 0)
 284                 return err;
 285
 286         if (val)
 287                 i2c_data |= VV6410_VFLIP;
 288         else
 289                 i2c_data &= ~VV6410_VFLIP;
 290
 291         PDEBUG(D_V4L2, "Set vertical flip to %d", val);
 292         err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
 293
 294         return (err < 0) ? err : 0;
 295 }
 296
 297 static int vv6410_get_analog_gain(struct gspca_dev *gspca_dev, __s32 *val)
 298 {
 299         struct sd *sd = (struct sd *) gspca_dev;
 300         s32 *sensor_settings = sd->sensor_priv;
 301
 302         *val = sensor_settings[GAIN_IDX];
 303
 304         PDEBUG(D_V4L2, "Read analog gain %d", *val);
 305
 306         return 0;
 307 }
 308
 309 static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
 310 {
 311         int err;
 312         struct sd *sd = (struct sd *) gspca_dev;
 313         s32 *sensor_settings = sd->sensor_priv;
 314
 315         sensor_settings[GAIN_IDX] = val;
 316         PDEBUG(D_V4L2, "Set analog gain to %d", val);
 317         err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
 318
 319         return (err < 0) ? err : 0;
 320 }