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
  35         __u8 packet;
  36 };
  37
  38 /* V4L2 controls supported by the driver */
  39 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  40 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  41
  42 static const struct ctrl sd_ctrls[] = {
  43         {
  44          {
  45           .id = V4L2_CID_BRIGHTNESS,
  46           .type = V4L2_CTRL_TYPE_INTEGER,
  47           .name = "Brightness",
  48           .minimum = 1,
  49           .maximum = 0x15f,     /* = 352 - 1 */
  50           .step = 1,
  51 #define BRIGHTNESS_DEF 0x14c
  52           .default_value = BRIGHTNESS_DEF,
  53           },
  54          .set = sd_setbrightness,
  55          .get = sd_getbrightness,
  56          },
  57 };
  58
  59 static const struct v4l2_pix_format sif_mode[] = {
  60         {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
  61                 .bytesperline = 176,
  62                 .sizeimage = 176 * 144,
  63                 .colorspace = V4L2_COLORSPACE_SRGB,
  64                 .priv = 1},
  65         {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
  66                 .bytesperline = 352,
  67                 .sizeimage = 352 * 288,
  68                 .colorspace = V4L2_COLORSPACE_SRGB,
  69                 .priv = 0},
  70 };
  71
  72 /* TV-8532A (ICM532A) registers (LE) */
  73 #define R00_PART_CONTROL 0x00
  74 #define         LATENT_CHANGE   0x80
  75 #define         EXPO_CHANGE     0x04
  76 #define R01_TIMING_CONTROL_LOW 0x01
  77 #define         CMD_EEprom_Open 0x30
  78 #define         CMD_EEprom_Close 0x29
  79 #define R03_TABLE_ADDR 0x03
  80 #define R04_WTRAM_DATA_L 0x04
  81 #define R05_WTRAM_DATA_M 0x05
  82 #define R06_WTRAM_DATA_H 0x06
  83 #define R07_TABLE_LEN   0x07
  84 #define R08_RAM_WRITE_ACTION 0x08
  85 #define R0C_AD_WIDTHL   0x0c
  86 #define R0D_AD_WIDTHH   0x0d
  87 #define R0E_AD_HEIGHTL  0x0e
  88 #define R0F_AD_HEIGHTH  0x0f
  89 #define R10_AD_COL_BEGINL 0x10
  90 #define R11_AD_COL_BEGINH 0x11
  91 #define         MIRROR          0x04    /* [10] */
  92 #define R14_AD_ROW_BEGINL 0x14
  93 #define R15_AD_ROWBEGINH  0x15
  94 #define R1C_AD_EXPOSE_TIMEL 0x1c
  95 #define R28_QUANT       0x28
  96 #define R29_LINE        0x29
  97 #define R2C_POLARITY    0x2c
  98 #define R2D_POINT       0x2d
  99 #define R2E_POINTH      0x2e
 100 #define R2F_POINTB      0x2f
 101 #define R30_POINTBH     0x30
 102 #define R31_UPD         0x31
 103 #define R2A_HIGH_BUDGET 0x2a
 104 #define R2B_LOW_BUDGET  0x2b
 105 #define R34_VID         0x34
 106 #define R35_VIDH        0x35
 107 #define R36_PID         0x36
 108 #define R37_PIDH        0x37
 109 #define R39_Test1       0x39            /* GPIO */
 110 #define R3B_Test3       0x3B            /* GPIO */
 111 #define R83_AD_IDH      0x83
 112 #define R91_AD_SLOPEREG 0x91
 113 #define R94_AD_BITCONTROL 0x94
 114
 115 static const u8 eeprom_data[][3] = {
 116 /*      dataH dataM dataL */
 117         {0x01, 0x00, 0x01},
 118         {0x01, 0x80, 0x11},
 119         {0x05, 0x00, 0x14},
 120         {0x05, 0x00, 0x1c},
 121         {0x0d, 0x00, 0x1e},
 122         {0x05, 0x00, 0x1f},
 123         {0x05, 0x05, 0x19},
 124         {0x05, 0x01, 0x1b},
 125         {0x05, 0x09, 0x1e},
 126         {0x0d, 0x89, 0x2e},
 127         {0x05, 0x89, 0x2f},
 128         {0x05, 0x0d, 0xd9},
 129         {0x05, 0x09, 0xf1},
 130 };
 131
 132 static int reg_r(struct gspca_dev *gspca_dev,
 133                  __u16 index)
 134 {
 135         usb_control_msg(gspca_dev->dev,
 136                         usb_rcvctrlpipe(gspca_dev->dev, 0),
 137                         0x03,
 138                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 139                         0,      /* value */
 140                         index, gspca_dev->usb_buf, 1,
 141                         500);
 142         return gspca_dev->usb_buf[0];
 143 }
 144
 145 /* write 1 byte */
 146 static void reg_w1(struct gspca_dev *gspca_dev,
 147                   __u16 index, __u8 value)
 148 {
 149         gspca_dev->usb_buf[0] = value;
 150         usb_control_msg(gspca_dev->dev,
 151                         usb_sndctrlpipe(gspca_dev->dev, 0),
 152                         0x02,
 153                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 154                         0,      /* value */
 155                         index, gspca_dev->usb_buf, 1, 500);
 156 }
 157
 158 /* write 2 bytes */
 159 static void reg_w2(struct gspca_dev *gspca_dev,
 160                   u16 index, u16 value)
 161 {
 162         gspca_dev->usb_buf[0] = value;
 163         gspca_dev->usb_buf[1] = value >> 8;
 164         usb_control_msg(gspca_dev->dev,
 165                         usb_sndctrlpipe(gspca_dev->dev, 0),
 166                         0x02,
 167                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 168                         0,      /* value */
 169                         index, gspca_dev->usb_buf, 2, 500);
 170 }
 171
 172 static void tv_8532WriteEEprom(struct gspca_dev *gspca_dev)
 173 {
 174         int i;
 175
 176         reg_w1(gspca_dev, R01_TIMING_CONTROL_LOW, CMD_EEprom_Open);
 177         for (i = 0; i < ARRAY_SIZE(eeprom_data); i++) {
 178                 reg_w1(gspca_dev, R03_TABLE_ADDR, i);
 179                 reg_w1(gspca_dev, R04_WTRAM_DATA_L, eeprom_data[i][2]);
 180                 reg_w1(gspca_dev, R05_WTRAM_DATA_M, eeprom_data[i][1]);
 181                 reg_w1(gspca_dev, R06_WTRAM_DATA_H, eeprom_data[i][0]);
 182                 reg_w1(gspca_dev, R08_RAM_WRITE_ACTION, 0);
 183         }
 184         reg_w1(gspca_dev, R07_TABLE_LEN, i);
 185         reg_w1(gspca_dev, R01_TIMING_CONTROL_LOW, CMD_EEprom_Close);
 186         msleep(10);
 187 }
 188
 189 /* this function is called at probe time */
 190 static int sd_config(struct gspca_dev *gspca_dev,
 191                      const struct usb_device_id *id)
 192 {
 193         struct sd *sd = (struct sd *) gspca_dev;
 194         struct cam *cam;
 195
 196         cam = &gspca_dev->cam;
 197         cam->cam_mode = sif_mode;
 198         cam->nmodes = ARRAY_SIZE(sif_mode);
 199
 200         sd->brightness = BRIGHTNESS_DEF;
 201         return 0;
 202 }
 203
 204 static void tv_8532ReadRegisters(struct gspca_dev *gspca_dev)
 205 {
 206         int i;
 207         static u8 reg_tb[] = {
 208                 R0C_AD_WIDTHL,
 209                 R0D_AD_WIDTHH,
 210                 R28_QUANT,
 211                 R29_LINE,
 212                 R2C_POLARITY,
 213                 R2D_POINT,
 214                 R2E_POINTH,
 215                 R2F_POINTB,
 216                 R30_POINTBH,
 217                 R2A_HIGH_BUDGET,
 218                 R2B_LOW_BUDGET,
 219                 R34_VID,
 220                 R35_VIDH,
 221                 R36_PID,
 222                 R37_PIDH,
 223                 R83_AD_IDH,
 224                 R10_AD_COL_BEGINL,
 225                 R11_AD_COL_BEGINH,
 226                 R14_AD_ROW_BEGINL,
 227                 R15_AD_ROWBEGINH,
 228                 0
 229         };
 230
 231         i = 0;
 232         do {
 233                 reg_r(gspca_dev, reg_tb[i]);
 234                 i++;
 235         } while (reg_tb[i] != 0);
 236 }
 237
 238 static void tv_8532_setReg(struct gspca_dev *gspca_dev)
 239 {
 240         reg_w1(gspca_dev, R10_AD_COL_BEGINL, 0x44);
 241                                                 /* begin active line */
 242         reg_w1(gspca_dev, R11_AD_COL_BEGINH, 0x00);
 243                                                 /* mirror and digital gain */
 244         reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
 245                                                 /* = 0x84 */
 246
 247         reg_w1(gspca_dev, R3B_Test3, 0x0a);     /* Test0Sel = 10 */
 248         /******************************************************/
 249         reg_w1(gspca_dev, R0E_AD_HEIGHTL, 0x90);
 250         reg_w1(gspca_dev, R0F_AD_HEIGHTH, 0x01);
 251         reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, 0x018f);
 252         reg_w1(gspca_dev, R10_AD_COL_BEGINL, 0x44);
 253                                                 /* begin active line */
 254         reg_w1(gspca_dev, R11_AD_COL_BEGINH, 0x00);
 255                                                 /* mirror and digital gain */
 256         reg_w1(gspca_dev, R14_AD_ROW_BEGINL, 0x0a);
 257
 258         reg_w1(gspca_dev, R91_AD_SLOPEREG, 0x00);
 259         reg_w1(gspca_dev, R94_AD_BITCONTROL, 0x02);
 260
 261         reg_w1(gspca_dev, R01_TIMING_CONTROL_LOW, CMD_EEprom_Close);
 262
 263         reg_w1(gspca_dev, R91_AD_SLOPEREG, 0x00);
 264         reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
 265                                                 /* = 0x84 */
 266 }
 267
 268 static void tv_8532_PollReg(struct gspca_dev *gspca_dev)
 269 {
 270         int i;
 271
 272         /* strange polling from tgc */
 273         for (i = 0; i < 10; i++) {
 274                 reg_w1(gspca_dev, R2C_POLARITY, 0x10);
 275                 reg_w1(gspca_dev, R00_PART_CONTROL,
 276                                 LATENT_CHANGE | EXPO_CHANGE);
 277                 reg_w1(gspca_dev, R31_UPD, 0x01);
 278         }
 279 }
 280
 281 /* this function is called at probe and resume time */
 282 static int sd_init(struct gspca_dev *gspca_dev)
 283 {
 284         tv_8532WriteEEprom(gspca_dev);
 285
 286         reg_w1(gspca_dev, R91_AD_SLOPEREG, 0x32);       /* slope begin 1,7V,
 287                                                          * slope rate 2 */
 288         reg_w1(gspca_dev, R94_AD_BITCONTROL, 0x00);
 289         tv_8532ReadRegisters(gspca_dev);
 290         reg_w1(gspca_dev, R3B_Test3, 0x0b);
 291         reg_w2(gspca_dev, R0E_AD_HEIGHTL, 0x0190);
 292         reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, 0x018f);
 293         reg_w1(gspca_dev, R0C_AD_WIDTHL, 0xe8);
 294         reg_w1(gspca_dev, R0D_AD_WIDTHH, 0x03);
 295
 296         /*******************************************************************/
 297         reg_w1(gspca_dev, R28_QUANT, 0x90);
 298                                         /* no compress - fixed Q - quant 0 */
 299         reg_w1(gspca_dev, R29_LINE, 0x81);
 300                                         /* 0x84; // CIF | 4 packet 0x29 */
 301
 302         /************************************************/
 303         reg_w1(gspca_dev, R2C_POLARITY, 0x10);
 304                                                 /* 0x48; //0x08; 0x2c */
 305         reg_w1(gspca_dev, R2D_POINT, 0x14);
 306                                                 /* 0x38; 0x2d */
 307         reg_w1(gspca_dev, R2E_POINTH, 0x01);
 308                                                 /* 0x04; 0x2e */
 309         reg_w1(gspca_dev, R2F_POINTB, 0x12);
 310                                                 /* 0x04; 0x2f */
 311         reg_w1(gspca_dev, R30_POINTBH, 0x01);
 312                                                 /* 0x04; 0x30 */
 313         reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
 314                                                 /* 0x00<-0x84 */
 315         /*************************************************/
 316         reg_w1(gspca_dev, R31_UPD, 0x01);       /* update registers */
 317         msleep(200);
 318         reg_w1(gspca_dev, R31_UPD, 0x00);               /* end update */
 319         /*************************************************/
 320         tv_8532_setReg(gspca_dev);
 321         /*************************************************/
 322         reg_w1(gspca_dev, R3B_Test3, 0x0b);     /* Test0Sel = 11 = GPIO */
 323         /*************************************************/
 324         tv_8532_setReg(gspca_dev);
 325         /*************************************************/
 326         tv_8532_PollReg(gspca_dev);
 327         return 0;
 328 }
 329
 330 static void setbrightness(struct gspca_dev *gspca_dev)
 331 {
 332         struct sd *sd = (struct sd *) gspca_dev;
 333
 334         reg_w2(gspca_dev, R1C_AD_EXPOSE_TIMEL, sd->brightness);
 335         reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
 336                                                 /* 0x84 */
 337 }
 338
 339 /* -- start the camera -- */
 340 static int sd_start(struct gspca_dev *gspca_dev)
 341 {
 342         struct sd *sd = (struct sd *) gspca_dev;
 343
 344         reg_w1(gspca_dev, R91_AD_SLOPEREG, 0x32);       /* slope begin 1,7V,
 345                                                          * slope rate 2 */
 346         reg_w1(gspca_dev, R94_AD_BITCONTROL, 0x00);
 347         tv_8532ReadRegisters(gspca_dev);
 348         reg_w1(gspca_dev, R3B_Test3, 0x0b);
 349
 350         reg_w2(gspca_dev, R0E_AD_HEIGHTL, 0x0190);
 351         setbrightness(gspca_dev);
 352
 353         reg_w1(gspca_dev, R0C_AD_WIDTHL, 0xe8);         /* 0x20; 0x0c */
 354         reg_w1(gspca_dev, R0D_AD_WIDTHH, 0x03);
 355
 356         /************************************************/
 357         reg_w1(gspca_dev, R28_QUANT, 0x90);
 358                                         /* 0x72 compressed mode 0x28 */
 359         if (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
 360                 /* 176x144 */
 361                 reg_w1(gspca_dev, R29_LINE, 0x41);
 362                                         /* CIF - 2 lines/packet */
 363         } else {
 364                 /* 352x288 */
 365                 reg_w1(gspca_dev, R29_LINE, 0x81);
 366                                         /* CIF - 2 lines/packet */
 367         }
 368         /************************************************/
 369         reg_w1(gspca_dev, R2C_POLARITY, 0x10);          /* slow clock */
 370         reg_w1(gspca_dev, R2D_POINT, 0x14);
 371         reg_w1(gspca_dev, R2E_POINTH, 0x01);
 372         reg_w1(gspca_dev, R2F_POINTB, 0x12);
 373         reg_w1(gspca_dev, R30_POINTBH, 0x01);
 374         reg_w1(gspca_dev, R00_PART_CONTROL, LATENT_CHANGE | EXPO_CHANGE);
 375         /************************************************/
 376         reg_w1(gspca_dev, R31_UPD, 0x01);       /* update registers */
 377         msleep(200);
 378         reg_w1(gspca_dev, R31_UPD, 0x00);               /* end update */
 379         /************************************************/
 380         tv_8532_setReg(gspca_dev);
 381         /************************************************/
 382         reg_w1(gspca_dev, R3B_Test3, 0x0b);     /* Test0Sel = 11 = GPIO */
 383         /************************************************/
 384         tv_8532_setReg(gspca_dev);
 385         /************************************************/
 386         tv_8532_PollReg(gspca_dev);
 387         reg_w1(gspca_dev, R31_UPD, 0x00);       /* end update */
 388
 389         gspca_dev->empty_packet = 0;            /* check the empty packets */
 390         sd->packet = 0;                         /* ignore the first packets */
 391
 392         return 0;
 393 }
 394
 395 static void sd_stopN(struct gspca_dev *gspca_dev)
 396 {
 397         reg_w1(gspca_dev, R3B_Test3, 0x0b);     /* Test0Sel = 11 = GPIO */
 398 }
 399
 400 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 401                         u8 *data,                       /* isoc packet */
 402                         int len)                        /* iso packet length */
 403 {
 404         struct sd *sd = (struct sd *) gspca_dev;
 405         int packet_type0, packet_type1;
 406
 407         packet_type0 = packet_type1 = INTER_PACKET;
 408         if (gspca_dev->empty_packet) {
 409                 gspca_dev->empty_packet = 0;
 410                 sd->packet = gspca_dev->height / 2;
 411                 packet_type0 = FIRST_PACKET;
 412         } else if (sd->packet == 0)
 413                 return;                 /* 2 more lines in 352x288 ! */
 414         sd->packet--;
 415         if (sd->packet == 0)
 416                 packet_type1 = LAST_PACKET;
 417
 418         /* each packet contains:
 419          * - header 2 bytes
 420          * - RGRG line
 421          * - 4 bytes
 422          * - GBGB line
 423          * - 4 bytes
 424          */
 425         gspca_frame_add(gspca_dev, packet_type0,
 426                         data + 2, gspca_dev->width);
 427         gspca_frame_add(gspca_dev, packet_type1,
 428                         data + gspca_dev->width + 5, gspca_dev->width);
 429 }
 430
 431 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 432 {
 433         struct sd *sd = (struct sd *) gspca_dev;
 434
 435         sd->brightness = val;
 436         if (gspca_dev->streaming)
 437                 setbrightness(gspca_dev);
 438         return 0;
 439 }
 440
 441 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 442 {
 443         struct sd *sd = (struct sd *) gspca_dev;
 444
 445         *val = sd->brightness;
 446         return 0;
 447 }
 448
 449 /* sub-driver description */
 450 static const struct sd_desc sd_desc = {
 451         .name = MODULE_NAME,
 452         .ctrls = sd_ctrls,
 453         .nctrls = ARRAY_SIZE(sd_ctrls),
 454         .config = sd_config,
 455         .init = sd_init,
 456         .start = sd_start,
 457         .stopN = sd_stopN,
 458         .pkt_scan = sd_pkt_scan,
 459 };
 460
 461 /* -- module initialisation -- */
 462 static const __devinitdata struct usb_device_id device_table[] = {
 463         {USB_DEVICE(0x046d, 0x0920)},
 464         {USB_DEVICE(0x046d, 0x0921)},
 465         {USB_DEVICE(0x0545, 0x808b)},
 466         {USB_DEVICE(0x0545, 0x8333)},
 467         {USB_DEVICE(0x0923, 0x010f)},
 468         {}
 469 };
 470
 471 MODULE_DEVICE_TABLE(usb, device_table);
 472
 473 /* -- device connect -- */
 474 static int sd_probe(struct usb_interface *intf,
 475                     const struct usb_device_id *id)
 476 {
 477         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 478                                THIS_MODULE);
 479 }
 480
 481 static struct usb_driver sd_driver = {
 482         .name = MODULE_NAME,
 483         .id_table = device_table,
 484         .probe = sd_probe,
 485         .disconnect = gspca_disconnect,
 486 #ifdef CONFIG_PM
 487         .suspend = gspca_suspend,
 488         .resume = gspca_resume,
 489 #endif
 490 };
 491
 492 /* -- module insert / remove -- */
 493 static int __init sd_mod_init(void)
 494 {
 495         int ret;
 496         ret = usb_register(&sd_driver);
 497         if (ret < 0)
 498                 return ret;
 499         PDEBUG(D_PROBE, "registered");
 500         return 0;
 501 }
 502
 503 static void __exit sd_mod_exit(void)
 504 {
 505         usb_deregister(&sd_driver);
 506         PDEBUG(D_PROBE, "deregistered");
 507 }
 508
 509 module_init(sd_mod_init);
 510 module_exit(sd_mod_exit);