kernel/drivers/media/usb/gspca/m5602/m5602_s5k4aa.c

   1 /*
   2  * Driver for the s5k4aa sensor
   3  *
   4  * Copyright (C) 2008 Erik Andrén
   5  * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
   6  * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
   7  *
   8  * Portions of code to USB interface and ALi driver software,
   9  * Copyright (c) 2006 Willem Duinker
  10  * v4l2 interface modeled after the V4L2 driver
  11  * for SN9C10x PC Camera Controllers
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License as
  15  * published by the Free Software Foundation, version 2.
  16  *
  17  */
  18
  19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  20
  21 #include "m5602_s5k4aa.h"
  22
  23 static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl);
  24 static void s5k4aa_dump_registers(struct sd *sd);
  25
  26 static const struct v4l2_ctrl_ops s5k4aa_ctrl_ops = {
  27         .s_ctrl = s5k4aa_s_ctrl,
  28 };
  29
  30 static
  31     const
  32         struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
  33         {
  34                 .ident = "BRUNEINIT",
  35                 .matches = {
  36                         DMI_MATCH(DMI_SYS_VENDOR, "BRUNENIT"),
  37                         DMI_MATCH(DMI_PRODUCT_NAME, "BRUNENIT"),
  38                         DMI_MATCH(DMI_BOARD_VERSION, "00030D0000000001")
  39                 }
  40         }, {
  41                 .ident = "Fujitsu-Siemens Amilo Xa 2528",
  42                 .matches = {
  43                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
  44                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
  45                 }
  46         }, {
  47                 .ident = "Fujitsu-Siemens Amilo Xi 2428",
  48                 .matches = {
  49                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
  50                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2428")
  51                 }
  52         }, {
  53                 .ident = "Fujitsu-Siemens Amilo Xi 2528",
  54                 .matches = {
  55                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
  56                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2528")
  57                 }
  58         }, {
  59                 .ident = "Fujitsu-Siemens Amilo Xi 2550",
  60                 .matches = {
  61                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
  62                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
  63                 }
  64         }, {
  65                 .ident = "Fujitsu-Siemens Amilo Pa 2548",
  66                 .matches = {
  67                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
  68                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2548")
  69                 }
  70         }, {
  71                 .ident = "Fujitsu-Siemens Amilo Pi 2530",
  72                 .matches = {
  73                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
  74                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 2530")
  75                 }
  76         }, {
  77                 .ident = "MSI GX700",
  78                 .matches = {
  79                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
  80                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
  81                         DMI_MATCH(DMI_BIOS_DATE, "12/02/2008")
  82                 }
  83         }, {
  84                 .ident = "MSI GX700",
  85                 .matches = {
  86                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
  87                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
  88                         DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
  89                 }
  90         }, {
  91                 .ident = "MSI GX700",
  92                 .matches = {
  93                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
  94                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
  95                         DMI_MATCH(DMI_BIOS_DATE, "07/19/2007")
  96                 }
  97         }, {
  98                 .ident = "MSI GX700/GX705/EX700",
  99                 .matches = {
 100                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 101                         DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
 102                 }
 103         }, {
 104                 .ident = "MSI L735",
 105                 .matches = {
 106                         DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
 107                         DMI_MATCH(DMI_PRODUCT_NAME, "MS-1717X")
 108                 }
 109         }, {
 110                 .ident = "Lenovo Y300",
 111                 .matches = {
 112                         DMI_MATCH(DMI_SYS_VENDOR, "L3000 Y300"),
 113                         DMI_MATCH(DMI_PRODUCT_NAME, "Y300")
 114                 }
 115         },
 116         { }
 117 };
 118
 119 static struct v4l2_pix_format s5k4aa_modes[] = {
 120         {
 121                 640,
 122                 480,
 123                 V4L2_PIX_FMT_SBGGR8,
 124                 V4L2_FIELD_NONE,
 125                 .sizeimage =
 126                         640 * 480,
 127                 .bytesperline = 640,
 128                 .colorspace = V4L2_COLORSPACE_SRGB,
 129                 .priv = 0
 130         },
 131         {
 132                 1280,
 133                 1024,
 134                 V4L2_PIX_FMT_SBGGR8,
 135                 V4L2_FIELD_NONE,
 136                 .sizeimage =
 137                         1280 * 1024,
 138                 .bytesperline = 1280,
 139                 .colorspace = V4L2_COLORSPACE_SRGB,
 140                 .priv = 0
 141         }
 142 };
 143
 144 int s5k4aa_probe(struct sd *sd)
 145 {
 146         u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 147         const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
 148         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 149         int i, err = 0;
 150
 151         if (force_sensor) {
 152                 if (force_sensor == S5K4AA_SENSOR) {
 153                         pr_info("Forcing a %s sensor\n", s5k4aa.name);
 154                         goto sensor_found;
 155                 }
 156                 /* If we want to force another sensor, don't try to probe this
 157                  * one */
 158                 return -ENODEV;
 159         }
 160
 161         PDEBUG(D_PROBE, "Probing for a s5k4aa sensor");
 162
 163         /* Preinit the sensor */
 164         for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
 165                 u8 data[2] = {0x00, 0x00};
 166
 167                 switch (preinit_s5k4aa[i][0]) {
 168                 case BRIDGE:
 169                         err = m5602_write_bridge(sd,
 170                                                  preinit_s5k4aa[i][1],
 171                                                  preinit_s5k4aa[i][2]);
 172                         break;
 173
 174                 case SENSOR:
 175                         data[0] = preinit_s5k4aa[i][2];
 176                         err = m5602_write_sensor(sd,
 177                                                   preinit_s5k4aa[i][1],
 178                                                   data, 1);
 179                         break;
 180
 181                 case SENSOR_LONG:
 182                         data[0] = preinit_s5k4aa[i][2];
 183                         data[1] = preinit_s5k4aa[i][3];
 184                         err = m5602_write_sensor(sd,
 185                                                   preinit_s5k4aa[i][1],
 186                                                   data, 2);
 187                         break;
 188                 default:
 189                         pr_info("Invalid stream command, exiting init\n");
 190                         return -EINVAL;
 191                 }
 192         }
 193
 194         /* Test some registers, but we don't know their exact meaning yet */
 195         if (m5602_read_sensor(sd, 0x00, prod_id, 2))
 196                 return -ENODEV;
 197         if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
 198                 return -ENODEV;
 199         if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
 200                 return -ENODEV;
 201
 202         if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
 203                 return -ENODEV;
 204         else
 205                 pr_info("Detected a s5k4aa sensor\n");
 206
 207 sensor_found:
 208         sd->gspca_dev.cam.cam_mode = s5k4aa_modes;
 209         sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes);
 210
 211         return 0;
 212 }
 213
 214 int s5k4aa_start(struct sd *sd)
 215 {
 216         int i, err = 0;
 217         u8 data[2];
 218         struct cam *cam = &sd->gspca_dev.cam;
 219         struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
 220
 221         switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) {
 222         case 1280:
 223                 PDEBUG(D_CONF, "Configuring camera for SXGA mode");
 224
 225                 for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) {
 226                         switch (SXGA_s5k4aa[i][0]) {
 227                         case BRIDGE:
 228                                 err = m5602_write_bridge(sd,
 229                                                  SXGA_s5k4aa[i][1],
 230                                                  SXGA_s5k4aa[i][2]);
 231                         break;
 232
 233                         case SENSOR:
 234                                 data[0] = SXGA_s5k4aa[i][2];
 235                                 err = m5602_write_sensor(sd,
 236                                                  SXGA_s5k4aa[i][1],
 237                                                  data, 1);
 238                         break;
 239
 240                         case SENSOR_LONG:
 241                                 data[0] = SXGA_s5k4aa[i][2];
 242                                 data[1] = SXGA_s5k4aa[i][3];
 243                                 err = m5602_write_sensor(sd,
 244                                                   SXGA_s5k4aa[i][1],
 245                                                   data, 2);
 246                         break;
 247
 248                         default:
 249                                 pr_err("Invalid stream command, exiting init\n");
 250                                 return -EINVAL;
 251                         }
 252                 }
 253                 break;
 254
 255         case 640:
 256                 PDEBUG(D_CONF, "Configuring camera for VGA mode");
 257
 258                 for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) {
 259                         switch (VGA_s5k4aa[i][0]) {
 260                         case BRIDGE:
 261                                 err = m5602_write_bridge(sd,
 262                                                  VGA_s5k4aa[i][1],
 263                                                  VGA_s5k4aa[i][2]);
 264                         break;
 265
 266                         case SENSOR:
 267                                 data[0] = VGA_s5k4aa[i][2];
 268                                 err = m5602_write_sensor(sd,
 269                                                  VGA_s5k4aa[i][1],
 270                                                  data, 1);
 271                         break;
 272
 273                         case SENSOR_LONG:
 274                                 data[0] = VGA_s5k4aa[i][2];
 275                                 data[1] = VGA_s5k4aa[i][3];
 276                                 err = m5602_write_sensor(sd,
 277                                                   VGA_s5k4aa[i][1],
 278                                                   data, 2);
 279                         break;
 280
 281                         default:
 282                                 pr_err("Invalid stream command, exiting init\n");
 283                                 return -EINVAL;
 284                         }
 285                 }
 286                 break;
 287         }
 288         if (err < 0)
 289                 return err;
 290
 291         return 0;
 292 }
 293
 294 int s5k4aa_init(struct sd *sd)
 295 {
 296         int i, err = 0;
 297
 298         for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
 299                 u8 data[2] = {0x00, 0x00};
 300
 301                 switch (init_s5k4aa[i][0]) {
 302                 case BRIDGE:
 303                         err = m5602_write_bridge(sd,
 304                                 init_s5k4aa[i][1],
 305                                 init_s5k4aa[i][2]);
 306                         break;
 307
 308                 case SENSOR:
 309                         data[0] = init_s5k4aa[i][2];
 310                         err = m5602_write_sensor(sd,
 311                                 init_s5k4aa[i][1], data, 1);
 312                         break;
 313
 314                 case SENSOR_LONG:
 315                         data[0] = init_s5k4aa[i][2];
 316                         data[1] = init_s5k4aa[i][3];
 317                         err = m5602_write_sensor(sd,
 318                                 init_s5k4aa[i][1], data, 2);
 319                         break;
 320                 default:
 321                         pr_info("Invalid stream command, exiting init\n");
 322                         return -EINVAL;
 323                 }
 324         }
 325
 326         if (dump_sensor)
 327                 s5k4aa_dump_registers(sd);
 328
 329         return err;
 330 }
 331
 332 int s5k4aa_init_controls(struct sd *sd)
 333 {
 334         struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
 335
 336         sd->gspca_dev.vdev.ctrl_handler = hdl;
 337         v4l2_ctrl_handler_init(hdl, 6);
 338
 339         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_BRIGHTNESS,
 340                           0, 0x1f, 1, S5K4AA_DEFAULT_BRIGHTNESS);
 341
 342         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_EXPOSURE,
 343                           13, 0xfff, 1, 0x100);
 344
 345         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_GAIN,
 346                           0, 127, 1, S5K4AA_DEFAULT_GAIN);
 347
 348         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_SHARPNESS,
 349                           0, 1, 1, 1);
 350
 351         sd->hflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_HFLIP,
 352                                       0, 1, 1, 0);
 353         sd->vflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_VFLIP,
 354                                       0, 1, 1, 0);
 355
 356         if (hdl->error) {
 357                 pr_err("Could not initialize controls\n");
 358                 return hdl->error;
 359         }
 360
 361         v4l2_ctrl_cluster(2, &sd->hflip);
 362
 363         return 0;
 364 }
 365
 366 static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
 367 {
 368         struct sd *sd = (struct sd *) gspca_dev;
 369         u8 data = S5K4AA_PAGE_MAP_2;
 370         int err;
 371
 372         PDEBUG(D_CONF, "Set exposure to %d", val);
 373         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 374         if (err < 0)
 375                 return err;
 376         data = (val >> 8) & 0xff;
 377         err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
 378         if (err < 0)
 379                 return err;
 380         data = val & 0xff;
 381         err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
 382
 383         return err;
 384 }
 385
 386 static int s5k4aa_set_hvflip(struct gspca_dev *gspca_dev)
 387 {
 388         struct sd *sd = (struct sd *) gspca_dev;
 389         u8 data = S5K4AA_PAGE_MAP_2;
 390         int err;
 391         int hflip = sd->hflip->val;
 392         int vflip = sd->vflip->val;
 393
 394         PDEBUG(D_CONF, "Set hvflip %d %d", hflip, vflip);
 395         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 396         if (err < 0)
 397                 return err;
 398
 399         err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 400         if (err < 0)
 401                 return err;
 402
 403         if (dmi_check_system(s5k4aa_vflip_dmi_table)) {
 404                 hflip = !hflip;
 405                 vflip = !vflip;
 406         }
 407
 408         data = (data & 0x7f) | (vflip << 7) | (hflip << 6);
 409         err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 410         if (err < 0)
 411                 return err;
 412
 413         err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 414         if (err < 0)
 415                 return err;
 416         if (hflip)
 417                 data &= 0xfe;
 418         else
 419                 data |= 0x01;
 420         err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 421         if (err < 0)
 422                 return err;
 423
 424         err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 425         if (err < 0)
 426                 return err;
 427         if (vflip)
 428                 data &= 0xfe;
 429         else
 430                 data |= 0x01;
 431         err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 432         if (err < 0)
 433                 return err;
 434
 435         return 0;
 436 }
 437
 438 static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
 439 {
 440         struct sd *sd = (struct sd *) gspca_dev;
 441         u8 data = S5K4AA_PAGE_MAP_2;
 442         int err;
 443
 444         PDEBUG(D_CONF, "Set gain to %d", val);
 445         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 446         if (err < 0)
 447                 return err;
 448
 449         data = val & 0xff;
 450         err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1);
 451
 452         return err;
 453 }
 454
 455 static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
 456 {
 457         struct sd *sd = (struct sd *) gspca_dev;
 458         u8 data = S5K4AA_PAGE_MAP_2;
 459         int err;
 460
 461         PDEBUG(D_CONF, "Set brightness to %d", val);
 462         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 463         if (err < 0)
 464                 return err;
 465
 466         data = val & 0xff;
 467         return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1);
 468 }
 469
 470 static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val)
 471 {
 472         struct sd *sd = (struct sd *) gspca_dev;
 473         u8 data = S5K4AA_PAGE_MAP_2;
 474         int err;
 475
 476         PDEBUG(D_CONF, "Set noise to %d", val);
 477         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 478         if (err < 0)
 479                 return err;
 480
 481         data = val & 0x01;
 482         return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1);
 483 }
 484
 485 static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl)
 486 {
 487         struct gspca_dev *gspca_dev =
 488                 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
 489         int err;
 490
 491         if (!gspca_dev->streaming)
 492                 return 0;
 493
 494         switch (ctrl->id) {
 495         case V4L2_CID_BRIGHTNESS:
 496                 err = s5k4aa_set_brightness(gspca_dev, ctrl->val);
 497                 break;
 498         case V4L2_CID_EXPOSURE:
 499                 err = s5k4aa_set_exposure(gspca_dev, ctrl->val);
 500                 break;
 501         case V4L2_CID_GAIN:
 502                 err = s5k4aa_set_gain(gspca_dev, ctrl->val);
 503                 break;
 504         case V4L2_CID_SHARPNESS:
 505                 err = s5k4aa_set_noise(gspca_dev, ctrl->val);
 506                 break;
 507         case V4L2_CID_HFLIP:
 508                 err = s5k4aa_set_hvflip(gspca_dev);
 509                 break;
 510         default:
 511                 return -EINVAL;
 512         }
 513
 514         return err;
 515 }
 516
 517 void s5k4aa_disconnect(struct sd *sd)
 518 {
 519         sd->sensor = NULL;
 520 }
 521
 522 static void s5k4aa_dump_registers(struct sd *sd)
 523 {
 524         int address;
 525         u8 page, old_page;
 526         m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 527         for (page = 0; page < 16; page++) {
 528                 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 529                 pr_info("Dumping the s5k4aa register state for page 0x%x\n",
 530                         page);
 531                 for (address = 0; address <= 0xff; address++) {
 532                         u8 value = 0;
 533                         m5602_read_sensor(sd, address, &value, 1);
 534                         pr_info("register 0x%x contains 0x%x\n",
 535                                 address, value);
 536                 }
 537         }
 538         pr_info("s5k4aa register state dump complete\n");
 539
 540         for (page = 0; page < 16; page++) {
 541                 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 542                 pr_info("Probing for which registers that are read/write for page 0x%x\n",
 543                         page);
 544                 for (address = 0; address <= 0xff; address++) {
 545                         u8 old_value, ctrl_value, test_value = 0xff;
 546
 547                         m5602_read_sensor(sd, address, &old_value, 1);
 548                         m5602_write_sensor(sd, address, &test_value, 1);
 549                         m5602_read_sensor(sd, address, &ctrl_value, 1);
 550
 551                         if (ctrl_value == test_value)
 552                                 pr_info("register 0x%x is writeable\n",
 553                                         address);
 554                         else
 555                                 pr_info("register 0x%x is read only\n",
 556                                         address);
 557
 558                         /* Restore original value */
 559                         m5602_write_sensor(sd, address, &old_value, 1);
 560                 }
 561         }
 562         pr_info("Read/write register probing complete\n");
 563         m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 564 }