Pileus Git - ~andy/linux/blob - 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         int i, err = 0;
 149
 150         if (force_sensor) {
 151                 if (force_sensor == S5K4AA_SENSOR) {
 152                         pr_info("Forcing a %s sensor\n", s5k4aa.name);
 153                         goto sensor_found;
 154                 }
 155                 /* If we want to force another sensor, don't try to probe this
 156                  * one */
 157                 return -ENODEV;
 158         }
 159
 160         PDEBUG(D_PROBE, "Probing for a s5k4aa sensor");
 161
 162         /* Preinit the sensor */
 163         for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
 164                 u8 data[2] = {0x00, 0x00};
 165
 166                 switch (preinit_s5k4aa[i][0]) {
 167                 case BRIDGE:
 168                         err = m5602_write_bridge(sd,
 169                                                  preinit_s5k4aa[i][1],
 170                                                  preinit_s5k4aa[i][2]);
 171                         break;
 172
 173                 case SENSOR:
 174                         data[0] = preinit_s5k4aa[i][2];
 175                         err = m5602_write_sensor(sd,
 176                                                   preinit_s5k4aa[i][1],
 177                                                   data, 1);
 178                         break;
 179
 180                 case SENSOR_LONG:
 181                         data[0] = preinit_s5k4aa[i][2];
 182                         data[1] = preinit_s5k4aa[i][3];
 183                         err = m5602_write_sensor(sd,
 184                                                   preinit_s5k4aa[i][1],
 185                                                   data, 2);
 186                         break;
 187                 default:
 188                         pr_info("Invalid stream command, exiting init\n");
 189                         return -EINVAL;
 190                 }
 191         }
 192
 193         /* Test some registers, but we don't know their exact meaning yet */
 194         if (m5602_read_sensor(sd, 0x00, prod_id, 2))
 195                 return -ENODEV;
 196         if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
 197                 return -ENODEV;
 198         if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
 199                 return -ENODEV;
 200
 201         if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
 202                 return -ENODEV;
 203         else
 204                 pr_info("Detected a s5k4aa sensor\n");
 205
 206 sensor_found:
 207         sd->gspca_dev.cam.cam_mode = s5k4aa_modes;
 208         sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes);
 209
 210         return 0;
 211 }
 212
 213 int s5k4aa_start(struct sd *sd)
 214 {
 215         int i, err = 0;
 216         u8 data[2];
 217         struct cam *cam = &sd->gspca_dev.cam;
 218
 219         switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) {
 220         case 1280:
 221                 PDEBUG(D_V4L2, "Configuring camera for SXGA mode");
 222
 223                 for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) {
 224                         switch (SXGA_s5k4aa[i][0]) {
 225                         case BRIDGE:
 226                                 err = m5602_write_bridge(sd,
 227                                                  SXGA_s5k4aa[i][1],
 228                                                  SXGA_s5k4aa[i][2]);
 229                         break;
 230
 231                         case SENSOR:
 232                                 data[0] = SXGA_s5k4aa[i][2];
 233                                 err = m5602_write_sensor(sd,
 234                                                  SXGA_s5k4aa[i][1],
 235                                                  data, 1);
 236                         break;
 237
 238                         case SENSOR_LONG:
 239                                 data[0] = SXGA_s5k4aa[i][2];
 240                                 data[1] = SXGA_s5k4aa[i][3];
 241                                 err = m5602_write_sensor(sd,
 242                                                   SXGA_s5k4aa[i][1],
 243                                                   data, 2);
 244                         break;
 245
 246                         default:
 247                                 pr_err("Invalid stream command, exiting init\n");
 248                                 return -EINVAL;
 249                         }
 250                 }
 251                 break;
 252
 253         case 640:
 254                 PDEBUG(D_V4L2, "Configuring camera for VGA mode");
 255
 256                 for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) {
 257                         switch (VGA_s5k4aa[i][0]) {
 258                         case BRIDGE:
 259                                 err = m5602_write_bridge(sd,
 260                                                  VGA_s5k4aa[i][1],
 261                                                  VGA_s5k4aa[i][2]);
 262                         break;
 263
 264                         case SENSOR:
 265                                 data[0] = VGA_s5k4aa[i][2];
 266                                 err = m5602_write_sensor(sd,
 267                                                  VGA_s5k4aa[i][1],
 268                                                  data, 1);
 269                         break;
 270
 271                         case SENSOR_LONG:
 272                                 data[0] = VGA_s5k4aa[i][2];
 273                                 data[1] = VGA_s5k4aa[i][3];
 274                                 err = m5602_write_sensor(sd,
 275                                                   VGA_s5k4aa[i][1],
 276                                                   data, 2);
 277                         break;
 278
 279                         default:
 280                                 pr_err("Invalid stream command, exiting init\n");
 281                                 return -EINVAL;
 282                         }
 283                 }
 284                 break;
 285         }
 286         if (err < 0)
 287                 return err;
 288
 289         return 0;
 290 }
 291
 292 int s5k4aa_init(struct sd *sd)
 293 {
 294         int i, err = 0;
 295
 296         for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
 297                 u8 data[2] = {0x00, 0x00};
 298
 299                 switch (init_s5k4aa[i][0]) {
 300                 case BRIDGE:
 301                         err = m5602_write_bridge(sd,
 302                                 init_s5k4aa[i][1],
 303                                 init_s5k4aa[i][2]);
 304                         break;
 305
 306                 case SENSOR:
 307                         data[0] = init_s5k4aa[i][2];
 308                         err = m5602_write_sensor(sd,
 309                                 init_s5k4aa[i][1], data, 1);
 310                         break;
 311
 312                 case SENSOR_LONG:
 313                         data[0] = init_s5k4aa[i][2];
 314                         data[1] = init_s5k4aa[i][3];
 315                         err = m5602_write_sensor(sd,
 316                                 init_s5k4aa[i][1], data, 2);
 317                         break;
 318                 default:
 319                         pr_info("Invalid stream command, exiting init\n");
 320                         return -EINVAL;
 321                 }
 322         }
 323
 324         if (dump_sensor)
 325                 s5k4aa_dump_registers(sd);
 326
 327         return err;
 328 }
 329
 330 int s5k4aa_init_controls(struct sd *sd)
 331 {
 332         struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
 333
 334         sd->gspca_dev.vdev.ctrl_handler = hdl;
 335         v4l2_ctrl_handler_init(hdl, 6);
 336
 337         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_BRIGHTNESS,
 338                           0, 0x1f, 1, S5K4AA_DEFAULT_BRIGHTNESS);
 339
 340         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_EXPOSURE,
 341                           13, 0xfff, 1, 0x100);
 342
 343         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_GAIN,
 344                           0, 127, 1, S5K4AA_DEFAULT_GAIN);
 345
 346         v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_SHARPNESS,
 347                           0, 1, 1, 1);
 348
 349         sd->hflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_HFLIP,
 350                                       0, 1, 1, 0);
 351         sd->vflip = v4l2_ctrl_new_std(hdl, &s5k4aa_ctrl_ops, V4L2_CID_VFLIP,
 352                                       0, 1, 1, 0);
 353
 354         if (hdl->error) {
 355                 pr_err("Could not initialize controls\n");
 356                 return hdl->error;
 357         }
 358
 359         v4l2_ctrl_cluster(2, &sd->hflip);
 360
 361         return 0;
 362 }
 363
 364 static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
 365 {
 366         struct sd *sd = (struct sd *) gspca_dev;
 367         u8 data = S5K4AA_PAGE_MAP_2;
 368         int err;
 369
 370         PDEBUG(D_V4L2, "Set exposure to %d", val);
 371         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 372         if (err < 0)
 373                 return err;
 374         data = (val >> 8) & 0xff;
 375         err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
 376         if (err < 0)
 377                 return err;
 378         data = val & 0xff;
 379         err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
 380
 381         return err;
 382 }
 383
 384 static int s5k4aa_set_hvflip(struct gspca_dev *gspca_dev)
 385 {
 386         struct sd *sd = (struct sd *) gspca_dev;
 387         u8 data = S5K4AA_PAGE_MAP_2;
 388         int err;
 389         int hflip = sd->hflip->val;
 390         int vflip = sd->vflip->val;
 391
 392         PDEBUG(D_V4L2, "Set hvflip %d %d", hflip, vflip);
 393         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 394         if (err < 0)
 395                 return err;
 396
 397         err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 398         if (err < 0)
 399                 return err;
 400
 401         if (dmi_check_system(s5k4aa_vflip_dmi_table)) {
 402                 hflip = !hflip;
 403                 vflip = !vflip;
 404         }
 405
 406         data = (data & 0x7f) | (vflip << 7) | (hflip << 6);
 407         err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
 408         if (err < 0)
 409                 return err;
 410
 411         err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 412         if (err < 0)
 413                 return err;
 414         if (hflip)
 415                 data &= 0xfe;
 416         else
 417                 data |= 0x01;
 418         err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
 419         if (err < 0)
 420                 return err;
 421
 422         err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 423         if (err < 0)
 424                 return err;
 425         if (vflip)
 426                 data &= 0xfe;
 427         else
 428                 data |= 0x01;
 429         err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
 430         if (err < 0)
 431                 return err;
 432
 433         return 0;
 434 }
 435
 436 static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
 437 {
 438         struct sd *sd = (struct sd *) gspca_dev;
 439         u8 data = S5K4AA_PAGE_MAP_2;
 440         int err;
 441
 442         PDEBUG(D_V4L2, "Set gain to %d", val);
 443         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 444         if (err < 0)
 445                 return err;
 446
 447         data = val & 0xff;
 448         err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1);
 449
 450         return err;
 451 }
 452
 453 static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
 454 {
 455         struct sd *sd = (struct sd *) gspca_dev;
 456         u8 data = S5K4AA_PAGE_MAP_2;
 457         int err;
 458
 459         PDEBUG(D_V4L2, "Set brightness to %d", val);
 460         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 461         if (err < 0)
 462                 return err;
 463
 464         data = val & 0xff;
 465         return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1);
 466 }
 467
 468 static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val)
 469 {
 470         struct sd *sd = (struct sd *) gspca_dev;
 471         u8 data = S5K4AA_PAGE_MAP_2;
 472         int err;
 473
 474         PDEBUG(D_V4L2, "Set noise to %d", val);
 475         err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
 476         if (err < 0)
 477                 return err;
 478
 479         data = val & 0x01;
 480         return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1);
 481 }
 482
 483 static int s5k4aa_s_ctrl(struct v4l2_ctrl *ctrl)
 484 {
 485         struct gspca_dev *gspca_dev =
 486                 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
 487         int err;
 488
 489         if (!gspca_dev->streaming)
 490                 return 0;
 491
 492         switch (ctrl->id) {
 493         case V4L2_CID_BRIGHTNESS:
 494                 err = s5k4aa_set_brightness(gspca_dev, ctrl->val);
 495                 break;
 496         case V4L2_CID_EXPOSURE:
 497                 err = s5k4aa_set_exposure(gspca_dev, ctrl->val);
 498                 break;
 499         case V4L2_CID_GAIN:
 500                 err = s5k4aa_set_gain(gspca_dev, ctrl->val);
 501                 break;
 502         case V4L2_CID_SHARPNESS:
 503                 err = s5k4aa_set_noise(gspca_dev, ctrl->val);
 504                 break;
 505         case V4L2_CID_HFLIP:
 506                 err = s5k4aa_set_hvflip(gspca_dev);
 507                 break;
 508         default:
 509                 return -EINVAL;
 510         }
 511
 512         return err;
 513 }
 514
 515 void s5k4aa_disconnect(struct sd *sd)
 516 {
 517         sd->sensor = NULL;
 518 }
 519
 520 static void s5k4aa_dump_registers(struct sd *sd)
 521 {
 522         int address;
 523         u8 page, old_page;
 524         m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 525         for (page = 0; page < 16; page++) {
 526                 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 527                 pr_info("Dumping the s5k4aa register state for page 0x%x\n",
 528                         page);
 529                 for (address = 0; address <= 0xff; address++) {
 530                         u8 value = 0;
 531                         m5602_read_sensor(sd, address, &value, 1);
 532                         pr_info("register 0x%x contains 0x%x\n",
 533                                 address, value);
 534                 }
 535         }
 536         pr_info("s5k4aa register state dump complete\n");
 537
 538         for (page = 0; page < 16; page++) {
 539                 m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
 540                 pr_info("Probing for which registers that are read/write for page 0x%x\n",
 541                         page);
 542                 for (address = 0; address <= 0xff; address++) {
 543                         u8 old_value, ctrl_value, test_value = 0xff;
 544
 545                         m5602_read_sensor(sd, address, &old_value, 1);
 546                         m5602_write_sensor(sd, address, &test_value, 1);
 547                         m5602_read_sensor(sd, address, &ctrl_value, 1);
 548
 549                         if (ctrl_value == test_value)
 550                                 pr_info("register 0x%x is writeable\n",
 551                                         address);
 552                         else
 553                                 pr_info("register 0x%x is read only\n",
 554                                         address);
 555
 556                         /* Restore original value */
 557                         m5602_write_sensor(sd, address, &old_value, 1);
 558                 }
 559         }
 560         pr_info("Read/write register probing complete\n");
 561         m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
 562 }