drivers/media/video/gspca/tv8532.c

   1 /*
   2  * Quickcam cameras initialization data
   3  *
   4  * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  *
  20  */
  21 #define MODULE_NAME "tv8532"
  22
  23 #include "gspca.h"
  24
  25 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
  26 MODULE_DESCRIPTION("TV8532 USB Camera Driver");
  27 MODULE_LICENSE("GPL");
  28
  29 /* specific webcam descriptor */
  30 struct sd {
  31         struct gspca_dev gspca_dev;     /* !! must be the first item */
  32
  33         __u16 brightness;
  34         __u16 contrast;
  35
  36         __u8 packet;
  37 };
  38
  39 /* V4L2 controls supported by the driver */
  40 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  41 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  42 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
  43 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
  44
  45 static struct ctrl sd_ctrls[] = {
  46 #define SD_BRIGHTNESS 0
  47         {
  48          {
  49           .id = V4L2_CID_BRIGHTNESS,
  50           .type = V4L2_CTRL_TYPE_INTEGER,
  51           .name = "Brightness",
  52           .minimum = 1,
  53           .maximum = 0x2ff,
  54           .step = 1,
  55           .default_value = 0x18f,
  56           },
  57          .set = sd_setbrightness,
  58          .get = sd_getbrightness,
  59          },
  60 #define SD_CONTRAST 1
  61         {
  62          {
  63           .id = V4L2_CID_CONTRAST,
  64           .type = V4L2_CTRL_TYPE_INTEGER,
  65           .name = "Contrast",
  66           .minimum = 0,
  67           .maximum = 0xffff,
  68           .step = 1,
  69           .default_value = 0x7fff,
  70           },
  71          .set = sd_setcontrast,
  72          .get = sd_getcontrast,
  73          },
  74 };
  75
  76 static const struct v4l2_pix_format sif_mode[] = {
  77         {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
  78                 .bytesperline = 176,
  79                 .sizeimage = 176 * 144,
  80                 .colorspace = V4L2_COLORSPACE_SRGB,
  81                 .priv = 1},
  82         {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
  83                 .bytesperline = 352,
  84                 .sizeimage = 352 * 288,
  85                 .colorspace = V4L2_COLORSPACE_SRGB,
  86                 .priv = 0},
  87 };
  88
  89 /*
  90  * Initialization data: this is the first set-up data written to the
  91  * device (before the open data).
  92  */
  93 #define TESTCLK 0x10            /* reg 0x2c -> 0x12 //10 */
  94 #define TESTCOMP 0x90           /* reg 0x28 -> 0x80 */
  95 #define TESTLINE 0x81           /* reg 0x29 -> 0x81 */
  96 #define QCIFLINE 0x41           /* reg 0x29 -> 0x81 */
  97 #define TESTPTL 0x14            /* reg 0x2D -> 0x14 */
  98 #define TESTPTH 0x01            /* reg 0x2E -> 0x01 */
  99 #define TESTPTBL 0x12           /* reg 0x2F -> 0x0a */
 100 #define TESTPTBH 0x01           /* reg 0x30 -> 0x01 */
 101 #define ADWIDTHL 0xe8           /* reg 0x0c -> 0xe8 */
 102 #define ADWIDTHH 0x03           /* reg 0x0d -> 0x03 */
 103 #define ADHEIGHL 0x90           /* reg 0x0e -> 0x91 //93 */
 104 #define ADHEIGHH 0x01           /* reg 0x0f -> 0x01 */
 105 #define EXPOL 0x8f              /* reg 0x1c -> 0x8f */
 106 #define EXPOH 0x01              /* reg 0x1d -> 0x01 */
 107 #define ADCBEGINL 0x44          /* reg 0x10 -> 0x46 //47 */
 108 #define ADCBEGINH 0x00          /* reg 0x11 -> 0x00 */
 109 #define ADRBEGINL 0x0a          /* reg 0x14 -> 0x0b //0x0c */
 110 #define ADRBEGINH 0x00          /* reg 0x15 -> 0x00 */
 111 #define TV8532_CMD_UPDATE 0x84
 112
 113 #define TV8532_EEprom_Add 0x03
 114 #define TV8532_EEprom_DataL 0x04
 115 #define TV8532_EEprom_DataM 0x05
 116 #define TV8532_EEprom_DataH 0x06
 117 #define TV8532_EEprom_TableLength 0x07
 118 #define TV8532_EEprom_Write 0x08
 119 #define TV8532_PART_CTRL 0x00
 120 #define TV8532_CTRL 0x01
 121 #define TV8532_CMD_EEprom_Open 0x30
 122 #define TV8532_CMD_EEprom_Close 0x29
 123 #define TV8532_UDP_UPDATE 0x31
 124 #define TV8532_GPIO 0x39
 125 #define TV8532_GPIO_OE 0x3B
 126 #define TV8532_REQ_RegWrite 0x02
 127 #define TV8532_REQ_RegRead 0x03
 128
 129 #define TV8532_ADWIDTH_L 0x0C
 130 #define TV8532_ADWIDTH_H 0x0D
 131 #define TV8532_ADHEIGHT_L 0x0E
 132 #define TV8532_ADHEIGHT_H 0x0F
 133 #define TV8532_EXPOSURE 0x1C
 134 #define TV8532_QUANT_COMP 0x28
 135 #define TV8532_MODE_PACKET 0x29
 136 #define TV8532_SETCLK 0x2C
 137 #define TV8532_POINT_L 0x2D
 138 #define TV8532_POINT_H 0x2E
 139 #define TV8532_POINTB_L 0x2F
 140 #define TV8532_POINTB_H 0x30
 141 #define TV8532_BUDGET_L 0x2A
 142 #define TV8532_BUDGET_H 0x2B
 143 #define TV8532_VID_L 0x34
 144 #define TV8532_VID_H 0x35
 145 #define TV8532_PID_L 0x36
 146 #define TV8532_PID_H 0x37
 147 #define TV8532_DeviceID 0x83
 148 #define TV8532_AD_SLOPE 0x91
 149 #define TV8532_AD_BITCTRL 0x94
 150 #define TV8532_AD_COLBEGIN_L 0x10
 151 #define TV8532_AD_COLBEGIN_H 0x11
 152 #define TV8532_AD_ROWBEGIN_L 0x14
 153 #define TV8532_AD_ROWBEGIN_H 0x15
 154
 155 static const __u32 tv_8532_eeprom_data[] = {
 156 /*      add             dataL      dataM        dataH */
 157         0x00010001, 0x01018011, 0x02050014, 0x0305001c,
 158         0x040d001e, 0x0505001f, 0x06050519, 0x0705011b,
 159         0x0805091e, 0x090d892e, 0x0a05892f, 0x0b050dd9,
 160         0x0c0509f1, 0
 161 };
 162
 163 static int reg_r(struct gspca_dev *gspca_dev,
 164                  __u16 index)
 165 {
 166         usb_control_msg(gspca_dev->dev,
 167                         usb_rcvctrlpipe(gspca_dev->dev, 0),
 168                         TV8532_REQ_RegRead,
 169                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 170                         0,      /* value */
 171                         index, gspca_dev->usb_buf, 1,
 172                         500);
 173         return gspca_dev->usb_buf[0];
 174 }
 175
 176 /* write 1 byte */
 177 static void reg_w_1(struct gspca_dev *gspca_dev,
 178                   __u16 index, __u8 value)
 179 {
 180         gspca_dev->usb_buf[0] = value;
 181         usb_control_msg(gspca_dev->dev,
 182                         usb_sndctrlpipe(gspca_dev->dev, 0),
 183                         TV8532_REQ_RegWrite,
 184                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 185                         0,      /* value */
 186                         index, gspca_dev->usb_buf, 1, 500);
 187 }
 188
 189 /* write 2 bytes */
 190 static void reg_w_2(struct gspca_dev *gspca_dev,
 191                   __u16 index, __u8 val1, __u8 val2)
 192 {
 193         gspca_dev->usb_buf[0] = val1;
 194         gspca_dev->usb_buf[1] = val2;
 195         usb_control_msg(gspca_dev->dev,
 196                         usb_sndctrlpipe(gspca_dev->dev, 0),
 197                         TV8532_REQ_RegWrite,
 198                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 199                         0,      /* value */
 200                         index, gspca_dev->usb_buf, 2, 500);
 201 }
 202
 203 static void tv_8532WriteEEprom(struct gspca_dev *gspca_dev)
 204 {
 205         int i = 0;
 206         __u8 reg, data0, data1, data2;
 207
 208         reg_w_1(gspca_dev, TV8532_GPIO, 0xb0);
 209         reg_w_1(gspca_dev, TV8532_CTRL, TV8532_CMD_EEprom_Open);
 210 /*      msleep(1); */
 211         while (tv_8532_eeprom_data[i]) {
 212                 reg = (tv_8532_eeprom_data[i] & 0xff000000) >> 24;
 213                 reg_w_1(gspca_dev, TV8532_EEprom_Add, reg);
 214                 /* msleep(1); */
 215                 data0 = (tv_8532_eeprom_data[i] & 0x000000ff);
 216                 reg_w_1(gspca_dev, TV8532_EEprom_DataL, data0);
 217                 /* msleep(1); */
 218                 data1 = (tv_8532_eeprom_data[i] & 0x0000ff00) >> 8;
 219                 reg_w_1(gspca_dev, TV8532_EEprom_DataM, data1);
 220                 /* msleep(1); */
 221                 data2 = (tv_8532_eeprom_data[i] & 0x00ff0000) >> 16;
 222                 reg_w_1(gspca_dev, TV8532_EEprom_DataH, data2);
 223                 /* msleep(1); */
 224                 reg_w_1(gspca_dev, TV8532_EEprom_Write, 0);
 225                 /* msleep(10); */
 226                 i++;
 227         }
 228         reg_w_1(gspca_dev, TV8532_EEprom_TableLength, i);
 229 /*      msleep(1); */
 230         reg_w_1(gspca_dev, TV8532_CTRL, TV8532_CMD_EEprom_Close);
 231         msleep(10);
 232 }
 233
 234 /* this function is called at probe time */
 235 static int sd_config(struct gspca_dev *gspca_dev,
 236                      const struct usb_device_id *id)
 237 {
 238         struct sd *sd = (struct sd *) gspca_dev;
 239         struct cam *cam;
 240
 241         tv_8532WriteEEprom(gspca_dev);
 242
 243         cam = &gspca_dev->cam;
 244         cam->epaddr = 1;
 245         cam->cam_mode = sif_mode;
 246         cam->nmodes = sizeof sif_mode / sizeof sif_mode[0];
 247
 248         sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
 249         sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
 250         return 0;
 251 }
 252
 253 static void tv_8532ReadRegisters(struct gspca_dev *gspca_dev)
 254 {
 255         __u8 data;
 256
 257         data = reg_r(gspca_dev, 0x0001);
 258         PDEBUG(D_USBI, "register 0x01-> %x", data);
 259         data = reg_r(gspca_dev, 0x0002);
 260         PDEBUG(D_USBI, "register 0x02-> %x", data);
 261         reg_r(gspca_dev, TV8532_ADWIDTH_L);
 262         reg_r(gspca_dev, TV8532_ADWIDTH_H);
 263         reg_r(gspca_dev, TV8532_QUANT_COMP);
 264         reg_r(gspca_dev, TV8532_MODE_PACKET);
 265         reg_r(gspca_dev, TV8532_SETCLK);
 266         reg_r(gspca_dev, TV8532_POINT_L);
 267         reg_r(gspca_dev, TV8532_POINT_H);
 268         reg_r(gspca_dev, TV8532_POINTB_L);
 269         reg_r(gspca_dev, TV8532_POINTB_H);
 270         reg_r(gspca_dev, TV8532_BUDGET_L);
 271         reg_r(gspca_dev, TV8532_BUDGET_H);
 272         reg_r(gspca_dev, TV8532_VID_L);
 273         reg_r(gspca_dev, TV8532_VID_H);
 274         reg_r(gspca_dev, TV8532_PID_L);
 275         reg_r(gspca_dev, TV8532_PID_H);
 276         reg_r(gspca_dev, TV8532_DeviceID);
 277         reg_r(gspca_dev, TV8532_AD_COLBEGIN_L);
 278         reg_r(gspca_dev, TV8532_AD_COLBEGIN_H);
 279         reg_r(gspca_dev, TV8532_AD_ROWBEGIN_L);
 280         reg_r(gspca_dev, TV8532_AD_ROWBEGIN_H);
 281 }
 282
 283 static void tv_8532_setReg(struct gspca_dev *gspca_dev)
 284 {
 285         reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_L,
 286                         ADCBEGINL);                     /* 0x10 */
 287         reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_H,
 288                         ADCBEGINH);                     /* also digital gain */
 289         reg_w_1(gspca_dev, TV8532_PART_CTRL,
 290                         TV8532_CMD_UPDATE);             /* 0x00<-0x84 */
 291
 292         reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0a);
 293         /******************************************************/
 294         reg_w_1(gspca_dev, TV8532_ADHEIGHT_L, ADHEIGHL); /* 0e */
 295         reg_w_1(gspca_dev, TV8532_ADHEIGHT_H, ADHEIGHH); /* 0f */
 296         reg_w_2(gspca_dev, TV8532_EXPOSURE,
 297                         EXPOL, EXPOH);                  /* 350d 0x014c; 1c */
 298         reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_L,
 299                         ADCBEGINL);                     /* 0x10 */
 300         reg_w_1(gspca_dev, TV8532_AD_COLBEGIN_H,
 301                         ADCBEGINH);                     /* also digital gain */
 302         reg_w_1(gspca_dev, TV8532_AD_ROWBEGIN_L,
 303                         ADRBEGINL);                     /* 0x14 */
 304
 305         reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x00);      /* 0x91 */
 306         reg_w_1(gspca_dev, TV8532_AD_BITCTRL, 0x02);    /* 0x94 */
 307
 308         reg_w_1(gspca_dev, TV8532_CTRL,
 309                         TV8532_CMD_EEprom_Close);       /* 0x01 */
 310
 311         reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x00);      /* 0x91 */
 312         reg_w_1(gspca_dev, TV8532_PART_CTRL,
 313                         TV8532_CMD_UPDATE);             /* 0x00<-0x84 */
 314 }
 315
 316 static void tv_8532_PollReg(struct gspca_dev *gspca_dev)
 317 {
 318         int i;
 319
 320         /* strange polling from tgc */
 321         for (i = 0; i < 10; i++) {
 322                 reg_w_1(gspca_dev, TV8532_SETCLK,
 323                         TESTCLK);               /* 0x48; //0x08; 0x2c */
 324                 reg_w_1(gspca_dev, TV8532_PART_CTRL, TV8532_CMD_UPDATE);
 325                 reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x01);    /* 0x31 */
 326         }
 327 }
 328
 329 /* this function is called at probe and resume time */
 330 static int sd_init(struct gspca_dev *gspca_dev)
 331 {
 332         reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x32);
 333         reg_w_1(gspca_dev, TV8532_AD_BITCTRL, 0x00);
 334         tv_8532ReadRegisters(gspca_dev);
 335         reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
 336         reg_w_2(gspca_dev, TV8532_ADHEIGHT_L, ADHEIGHL,
 337                                 ADHEIGHH);      /* 401d 0x0169; 0e */
 338         reg_w_2(gspca_dev, TV8532_EXPOSURE, EXPOL,
 339                                 EXPOH);         /* 350d 0x014c; 1c */
 340         reg_w_1(gspca_dev, TV8532_ADWIDTH_L, ADWIDTHL); /* 0x20; 0x0c */
 341         reg_w_1(gspca_dev, TV8532_ADWIDTH_H, ADWIDTHH); /* 0x0d */
 342
 343         /*******************************************************************/
 344         reg_w_1(gspca_dev, TV8532_QUANT_COMP,
 345                         TESTCOMP);      /* 0x72 compressed mode 0x28 */
 346         reg_w_1(gspca_dev, TV8532_MODE_PACKET,
 347                         TESTLINE);      /* 0x84; // CIF | 4 packet 0x29 */
 348
 349         /************************************************/
 350         reg_w_1(gspca_dev, TV8532_SETCLK,
 351                         TESTCLK);               /* 0x48; //0x08; 0x2c */
 352         reg_w_1(gspca_dev, TV8532_POINT_L,
 353                         TESTPTL);               /* 0x38; 0x2d */
 354         reg_w_1(gspca_dev, TV8532_POINT_H,
 355                         TESTPTH);               /* 0x04; 0x2e */
 356         reg_w_1(gspca_dev, TV8532_POINTB_L,
 357                         TESTPTBL);              /* 0x04; 0x2f */
 358         reg_w_1(gspca_dev, TV8532_POINTB_H,
 359                         TESTPTBH);              /* 0x04; 0x30 */
 360         reg_w_1(gspca_dev, TV8532_PART_CTRL,
 361                         TV8532_CMD_UPDATE);     /* 0x00<-0x84 */
 362         /*************************************************/
 363         reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x01);    /* 0x31 */
 364         msleep(200);
 365         reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x00);    /* 0x31 */
 366         /*************************************************/
 367         tv_8532_setReg(gspca_dev);
 368         /*************************************************/
 369         reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
 370         /*************************************************/
 371         tv_8532_setReg(gspca_dev);
 372         /*************************************************/
 373         tv_8532_PollReg(gspca_dev);
 374         return 0;
 375 }
 376
 377 static void setbrightness(struct gspca_dev *gspca_dev)
 378 {
 379         struct sd *sd = (struct sd *) gspca_dev;
 380         int brightness = sd->brightness;
 381
 382         reg_w_2(gspca_dev, TV8532_EXPOSURE,
 383                 brightness >> 8, brightness);           /* 1c */
 384         reg_w_1(gspca_dev, TV8532_PART_CTRL, TV8532_CMD_UPDATE);
 385 }
 386
 387 /* -- start the camera -- */
 388 static int sd_start(struct gspca_dev *gspca_dev)
 389 {
 390         struct sd *sd = (struct sd *) gspca_dev;
 391
 392         reg_w_1(gspca_dev, TV8532_AD_SLOPE, 0x32);
 393         reg_w_1(gspca_dev, TV8532_AD_BITCTRL, 0x00);
 394         tv_8532ReadRegisters(gspca_dev);
 395         reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
 396         reg_w_2(gspca_dev, TV8532_ADHEIGHT_L,
 397                 ADHEIGHL, ADHEIGHH);    /* 401d 0x0169; 0e */
 398 /*      reg_w_2(gspca_dev, TV8532_EXPOSURE,
 399                 EXPOL, EXPOH);           * 350d 0x014c; 1c */
 400         setbrightness(gspca_dev);
 401
 402         reg_w_1(gspca_dev, TV8532_ADWIDTH_L, ADWIDTHL); /* 0x20; 0x0c */
 403         reg_w_1(gspca_dev, TV8532_ADWIDTH_H, ADWIDTHH); /* 0x0d */
 404
 405         /************************************************/
 406         reg_w_1(gspca_dev, TV8532_QUANT_COMP,
 407                         TESTCOMP);      /* 0x72 compressed mode 0x28 */
 408         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
 409                 /* 176x144 */
 410                 reg_w_1(gspca_dev, TV8532_MODE_PACKET,
 411                         QCIFLINE);      /* 0x84; // CIF | 4 packet 0x29 */
 412         } else {
 413                 /* 352x288 */
 414                 reg_w_1(gspca_dev, TV8532_MODE_PACKET,
 415                         TESTLINE);      /* 0x84; // CIF | 4 packet 0x29 */
 416         }
 417         /************************************************/
 418         reg_w_1(gspca_dev, TV8532_SETCLK,
 419                         TESTCLK);               /* 0x48; //0x08; 0x2c */
 420         reg_w_1(gspca_dev, TV8532_POINT_L,
 421                         TESTPTL);               /* 0x38; 0x2d */
 422         reg_w_1(gspca_dev, TV8532_POINT_H,
 423                         TESTPTH);               /* 0x04; 0x2e */
 424         reg_w_1(gspca_dev, TV8532_POINTB_L,
 425                         TESTPTBL);              /* 0x04; 0x2f */
 426         reg_w_1(gspca_dev, TV8532_POINTB_H,
 427                         TESTPTBH);              /* 0x04; 0x30 */
 428         reg_w_1(gspca_dev, TV8532_PART_CTRL,
 429                         TV8532_CMD_UPDATE);     /* 0x00<-0x84 */
 430         /************************************************/
 431         reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x01);    /* 0x31 */
 432         msleep(200);
 433         reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x00);    /* 0x31 */
 434         /************************************************/
 435         tv_8532_setReg(gspca_dev);
 436         /************************************************/
 437         reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
 438         /************************************************/
 439         tv_8532_setReg(gspca_dev);
 440         /************************************************/
 441         tv_8532_PollReg(gspca_dev);
 442         reg_w_1(gspca_dev, TV8532_UDP_UPDATE, 0x00);    /* 0x31 */
 443
 444         gspca_dev->empty_packet = 0;            /* check the empty packets */
 445         sd->packet = 0;                         /* ignore the first packets */
 446
 447         return 0;
 448 }
 449
 450 static void sd_stopN(struct gspca_dev *gspca_dev)
 451 {
 452         reg_w_1(gspca_dev, TV8532_GPIO_OE, 0x0b);
 453 }
 454
 455 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 456                         struct gspca_frame *frame,      /* target */
 457                         __u8 *data,                     /* isoc packet */
 458                         int len)                        /* iso packet length */
 459 {
 460         struct sd *sd = (struct sd *) gspca_dev;
 461         int packet_type0, packet_type1;
 462
 463         packet_type0 = packet_type1 = INTER_PACKET;
 464         if (gspca_dev->empty_packet) {
 465                 gspca_dev->empty_packet = 0;
 466                 sd->packet = gspca_dev->height / 2;
 467                 packet_type0 = FIRST_PACKET;
 468         } else if (sd->packet == 0)
 469                 return;                 /* 2 more lines in 352x288 ! */
 470         sd->packet--;
 471         if (sd->packet == 0)
 472                 packet_type1 = LAST_PACKET;
 473
 474         /* each packet contains:
 475          * - header 2 bytes
 476          * - RG line
 477          * - 4 bytes
 478          * - GB line
 479          * - 4 bytes
 480          */
 481         gspca_frame_add(gspca_dev, packet_type0,
 482                         frame, data + 2, gspca_dev->width);
 483         gspca_frame_add(gspca_dev, packet_type1,
 484                         frame, data + gspca_dev->width + 6, gspca_dev->width);
 485 }
 486
 487 static void setcontrast(struct gspca_dev *gspca_dev)
 488 {
 489 }
 490
 491 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 492 {
 493         struct sd *sd = (struct sd *) gspca_dev;
 494
 495         sd->brightness = val;
 496         if (gspca_dev->streaming)
 497                 setbrightness(gspca_dev);
 498         return 0;
 499 }
 500
 501 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 502 {
 503         struct sd *sd = (struct sd *) gspca_dev;
 504
 505         *val = sd->brightness;
 506         return 0;
 507 }
 508
 509 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
 510 {
 511         struct sd *sd = (struct sd *) gspca_dev;
 512
 513         sd->contrast = val;
 514         if (gspca_dev->streaming)
 515                 setcontrast(gspca_dev);
 516         return 0;
 517 }
 518
 519 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 520 {
 521         struct sd *sd = (struct sd *) gspca_dev;
 522
 523         *val = sd->contrast;
 524         return 0;
 525 }
 526
 527 /* sub-driver description */
 528 static const struct sd_desc sd_desc = {
 529         .name = MODULE_NAME,
 530         .ctrls = sd_ctrls,
 531         .nctrls = ARRAY_SIZE(sd_ctrls),
 532         .config = sd_config,
 533         .init = sd_init,
 534         .start = sd_start,
 535         .stopN = sd_stopN,
 536         .pkt_scan = sd_pkt_scan,
 537 };
 538
 539 /* -- module initialisation -- */
 540 static const __devinitdata struct usb_device_id device_table[] = {
 541         {USB_DEVICE(0x046d, 0x0920)},
 542         {USB_DEVICE(0x046d, 0x0921)},
 543         {USB_DEVICE(0x0545, 0x808b)},
 544         {USB_DEVICE(0x0545, 0x8333)},
 545         {USB_DEVICE(0x0923, 0x010f)},
 546         {}
 547 };
 548
 549 MODULE_DEVICE_TABLE(usb, device_table);
 550
 551 /* -- device connect -- */
 552 static int sd_probe(struct usb_interface *intf,
 553                     const struct usb_device_id *id)
 554 {
 555         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 556                                THIS_MODULE);
 557 }
 558
 559 static struct usb_driver sd_driver = {
 560         .name = MODULE_NAME,
 561         .id_table = device_table,
 562         .probe = sd_probe,
 563         .disconnect = gspca_disconnect,
 564 #ifdef CONFIG_PM
 565         .suspend = gspca_suspend,
 566         .resume = gspca_resume,
 567 #endif
 568 };
 569
 570 /* -- module insert / remove -- */
 571 static int __init sd_mod_init(void)
 572 {
 573         if (usb_register(&sd_driver) < 0)
 574                 return -1;
 575         PDEBUG(D_PROBE, "registered");
 576         return 0;
 577 }
 578
 579 static void __exit sd_mod_exit(void)
 580 {
 581         usb_deregister(&sd_driver);
 582         PDEBUG(D_PROBE, "deregistered");
 583 }
 584
 585 module_init(sd_mod_init);
 586 module_exit(sd_mod_exit);