drivers/media/video/em28xx/em28xx-cards.c

   1 /*
   2    em28xx-cards.c - driver for Empia EM2800/EM2820/2840 USB
   3                     video capture devices
   4
   5    Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
   6                       Markus Rechberger <mrechberger@gmail.com>
   7                       Mauro Carvalho Chehab <mchehab@infradead.org>
   8                       Sascha Sommer <saschasommer@freenet.de>
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23  */
  24
  25 #include <linux/init.h>
  26 #include <linux/module.h>
  27 #include <linux/delay.h>
  28 #include <linux/i2c.h>
  29 #include <linux/usb.h>
  30 #include <media/tuner.h>
  31 #include <media/msp3400.h>
  32 #include <media/saa7115.h>
  33 #include <media/tvp5150.h>
  34 #include <media/tveeprom.h>
  35 #include <media/audiochip.h>
  36 #include <media/v4l2-common.h>
  37
  38 #include "em28xx.h"
  39 #include "tuner-xc2028.h"
  40
  41 static int tuner = -1;
  42 module_param(tuner, int, 0444);
  43 MODULE_PARM_DESC(tuner, "tuner type");
  44
  45 struct em28xx_hash_table {
  46         unsigned long hash;
  47         unsigned int  model;
  48         unsigned int  tuner;
  49 };
  50
  51 struct em28xx_board em28xx_boards[] = {
  52         [EM2800_BOARD_UNKNOWN] = {
  53                 .name         = "Unknown EM2800 video grabber",
  54                 .is_em2800    = 1,
  55                 .vchannels    = 2,
  56                 .tda9887_conf = TDA9887_PRESENT,
  57                 .has_tuner    = 1,
  58                 .decoder      = EM28XX_SAA7113,
  59                 .input           = { {
  60                         .type     = EM28XX_VMUX_COMPOSITE1,
  61                         .vmux     = SAA7115_COMPOSITE0,
  62                         .amux     = 1,
  63                 }, {
  64                         .type     = EM28XX_VMUX_SVIDEO,
  65                         .vmux     = SAA7115_SVIDEO3,
  66                         .amux     = 1,
  67                 } },
  68         },
  69         [EM2820_BOARD_UNKNOWN] = {
  70                 .name         = "Unknown EM2750/28xx video grabber",
  71                 .is_em2800    = 0,
  72         },
  73         [EM2820_BOARD_KWORLD_PVRTV2800RF] = {
  74                 .name         = "Kworld PVR TV 2800 RF",
  75                 .is_em2800    = 0,
  76                 .vchannels    = 2,
  77                 .tda9887_conf = TDA9887_PRESENT,
  78                 .has_tuner    = 1,
  79                 .decoder      = EM28XX_SAA7113,
  80                 .input           = { {
  81                         .type     = EM28XX_VMUX_COMPOSITE1,
  82                         .vmux     = SAA7115_COMPOSITE0,
  83                         .amux     = 1,
  84                 }, {
  85                         .type     = EM28XX_VMUX_SVIDEO,
  86                         .vmux     = SAA7115_SVIDEO3,
  87                         .amux     = 1,
  88                 } },
  89         },
  90         [EM2820_BOARD_TERRATEC_CINERGY_250] = {
  91                 .name         = "Terratec Cinergy 250 USB",
  92                 .vchannels    = 3,
  93                 .tuner_type   = TUNER_LG_PAL_NEW_TAPC,
  94                 .tda9887_conf = TDA9887_PRESENT,
  95                 .has_tuner    = 1,
  96                 .decoder      = EM28XX_SAA7113,
  97                 .input          = { {
  98                         .type     = EM28XX_VMUX_TELEVISION,
  99                         .vmux     = SAA7115_COMPOSITE2,
 100                         .amux     = 1,
 101                 }, {
 102                         .type     = EM28XX_VMUX_COMPOSITE1,
 103                         .vmux     = SAA7115_COMPOSITE0,
 104                         .amux     = 1,
 105                 }, {
 106                         .type     = EM28XX_VMUX_SVIDEO,
 107                         .vmux     = SAA7115_SVIDEO3,
 108                         .amux     = 1,
 109                 } },
 110         },
 111         [EM2820_BOARD_PINNACLE_USB_2] = {
 112                 .name         = "Pinnacle PCTV USB 2",
 113                 .vchannels    = 3,
 114                 .tuner_type   = TUNER_LG_PAL_NEW_TAPC,
 115                 .tda9887_conf = TDA9887_PRESENT,
 116                 .has_tuner    = 1,
 117                 .decoder      = EM28XX_SAA7113,
 118                 .input          = { {
 119                         .type     = EM28XX_VMUX_TELEVISION,
 120                         .vmux     = SAA7115_COMPOSITE2,
 121                         .amux     = 0,
 122                 }, {
 123                         .type     = EM28XX_VMUX_COMPOSITE1,
 124                         .vmux     = SAA7115_COMPOSITE0,
 125                         .amux     = 1,
 126                 }, {
 127                         .type     = EM28XX_VMUX_SVIDEO,
 128                         .vmux     = SAA7115_SVIDEO3,
 129                         .amux     = 1,
 130                 } },
 131         },
 132         [EM2820_BOARD_HAUPPAUGE_WINTV_USB_2] = {
 133                 .name         = "Hauppauge WinTV USB 2",
 134                 .vchannels    = 3,
 135                 .tuner_type   = TUNER_PHILIPS_FM1236_MK3,
 136                 .tda9887_conf = TDA9887_PRESENT |
 137                                 TDA9887_PORT1_ACTIVE|
 138                                 TDA9887_PORT2_ACTIVE,
 139                 .has_tuner    = 1,
 140                 .decoder      = EM28XX_TVP5150,
 141                 .has_msp34xx  = 1,
 142                 /*FIXME: S-Video not tested */
 143                 .input          = { {
 144                         .type     = EM28XX_VMUX_TELEVISION,
 145                         .vmux     = TVP5150_COMPOSITE0,
 146                         .amux     = MSP_INPUT_DEFAULT,
 147                 }, {
 148                         .type     = EM28XX_VMUX_SVIDEO,
 149                         .vmux     = TVP5150_SVIDEO,
 150                         .amux     = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
 151                                         MSP_DSP_IN_SCART, MSP_DSP_IN_SCART),
 152                 } },
 153         },
 154         [EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900] = {
 155                 .name         = "Hauppauge WinTV HVR 900",
 156                 .vchannels    = 3,
 157                 .tda9887_conf = TDA9887_PRESENT,
 158                 .tuner_type   = TUNER_XC2028,
 159                 .has_tuner    = 1,
 160                 .mts_firmware = 1,
 161                 .decoder      = EM28XX_TVP5150,
 162                 .input          = { {
 163                         .type     = EM28XX_VMUX_TELEVISION,
 164                         .vmux     = TVP5150_COMPOSITE0,
 165                         .amux     = 0,
 166                 }, {
 167                         .type     = EM28XX_VMUX_COMPOSITE1,
 168                         .vmux     = TVP5150_COMPOSITE1,
 169                         .amux     = 1,
 170                 }, {
 171                         .type     = EM28XX_VMUX_SVIDEO,
 172                         .vmux     = TVP5150_SVIDEO,
 173                         .amux     = 1,
 174                 } },
 175         },
 176         [EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950] = {
 177                 .name         = "Hauppauge WinTV HVR 950",
 178                 .vchannels    = 3,
 179                 .tda9887_conf = TDA9887_PRESENT,
 180                 .tuner_type   = TUNER_XC2028,
 181                 .has_tuner    = 1,
 182                 .decoder      = EM28XX_TVP5150,
 183                 .input          = { {
 184                         .type     = EM28XX_VMUX_TELEVISION,
 185                         .vmux     = TVP5150_COMPOSITE0,
 186                         .amux     = 0,
 187                 }, {
 188                         .type     = EM28XX_VMUX_COMPOSITE1,
 189                         .vmux     = TVP5150_COMPOSITE1,
 190                         .amux     = 1,
 191                 }, {
 192                         .type     = EM28XX_VMUX_SVIDEO,
 193                         .vmux     = TVP5150_SVIDEO,
 194                         .amux     = 1,
 195                 } },
 196         },
 197         [EM2880_BOARD_TERRATEC_HYBRID_XS] = {
 198                 .name         = "Terratec Hybrid XS",
 199                 .vchannels    = 3,
 200                 .tda9887_conf = TDA9887_PRESENT,
 201                 .has_tuner    = 1,
 202                 .tuner_type   = TUNER_XC2028,
 203                 .decoder      = EM28XX_TVP5150,
 204                 .input          = { {
 205                         .type     = EM28XX_VMUX_TELEVISION,
 206                         .vmux     = TVP5150_COMPOSITE0,
 207                         .amux     = 0,
 208                 }, {
 209                         .type     = EM28XX_VMUX_COMPOSITE1,
 210                         .vmux     = TVP5150_COMPOSITE1,
 211                         .amux     = 1,
 212                 }, {
 213                         .type     = EM28XX_VMUX_SVIDEO,
 214                         .vmux     = TVP5150_SVIDEO,
 215                         .amux     = 1,
 216                 } },
 217         },
 218         /* maybe there's a reason behind it why Terratec sells the Hybrid XS
 219            as Prodigy XS with a different PID, let's keep it separated for now
 220            maybe we'll need it lateron */
 221         [EM2880_BOARD_TERRATEC_PRODIGY_XS] = {
 222                 .name         = "Terratec Prodigy XS",
 223                 .vchannels    = 3,
 224                 .tda9887_conf = TDA9887_PRESENT,
 225                 .has_tuner    = 1,
 226                 .tuner_type   = TUNER_XC2028,
 227                 .decoder      = EM28XX_TVP5150,
 228                 .input          = { {
 229                         .type     = EM28XX_VMUX_TELEVISION,
 230                         .vmux     = TVP5150_COMPOSITE0,
 231                         .amux     = 0,
 232                 }, {
 233                         .type     = EM28XX_VMUX_COMPOSITE1,
 234                         .vmux     = TVP5150_COMPOSITE1,
 235                         .amux     = 1,
 236                 }, {
 237                         .type     = EM28XX_VMUX_SVIDEO,
 238                         .vmux     = TVP5150_SVIDEO,
 239                         .amux     = 1,
 240                 } },
 241         },
 242         [EM2820_BOARD_MSI_VOX_USB_2] = {
 243                 .name           = "MSI VOX USB 2.0",
 244                 .vchannels      = 3,
 245                 .tuner_type     = TUNER_LG_PAL_NEW_TAPC,
 246                 .tda9887_conf   = TDA9887_PRESENT      |
 247                                   TDA9887_PORT1_ACTIVE |
 248                                   TDA9887_PORT2_ACTIVE,
 249                 .has_tuner      = 1,
 250                 .decoder        = EM28XX_SAA7114,
 251                 .input          = { {
 252                         .type     = EM28XX_VMUX_TELEVISION,
 253                         .vmux     = SAA7115_COMPOSITE4,
 254                         .amux     = 0,
 255                 }, {
 256                         .type     = EM28XX_VMUX_COMPOSITE1,
 257                         .vmux     = SAA7115_COMPOSITE0,
 258                         .amux     = 1,
 259                 }, {
 260                         .type     = EM28XX_VMUX_SVIDEO,
 261                         .vmux     = SAA7115_SVIDEO3,
 262                         .amux     = 1,
 263                 } },
 264         },
 265         [EM2800_BOARD_TERRATEC_CINERGY_200] = {
 266                 .name         = "Terratec Cinergy 200 USB",
 267                 .is_em2800    = 1,
 268                 .vchannels    = 3,
 269                 .tuner_type   = TUNER_LG_PAL_NEW_TAPC,
 270                 .tda9887_conf = TDA9887_PRESENT,
 271                 .has_tuner    = 1,
 272                 .decoder      = EM28XX_SAA7113,
 273                 .input          = { {
 274                         .type     = EM28XX_VMUX_TELEVISION,
 275                         .vmux     = SAA7115_COMPOSITE2,
 276                         .amux     = 0,
 277                 }, {
 278                         .type     = EM28XX_VMUX_COMPOSITE1,
 279                         .vmux     = SAA7115_COMPOSITE0,
 280                         .amux     = 1,
 281                 }, {
 282                         .type     = EM28XX_VMUX_SVIDEO,
 283                         .vmux     = SAA7115_SVIDEO3,
 284                         .amux     = 1,
 285                 } },
 286         },
 287         [EM2800_BOARD_LEADTEK_WINFAST_USBII] = {
 288                 .name         = "Leadtek Winfast USB II",
 289                 .is_em2800    = 1,
 290                 .vchannels    = 3,
 291                 .tuner_type   = TUNER_LG_PAL_NEW_TAPC,
 292                 .tda9887_conf = TDA9887_PRESENT,
 293                 .has_tuner    = 1,
 294                 .decoder      = EM28XX_SAA7113,
 295                 .input          = { {
 296                         .type     = EM28XX_VMUX_TELEVISION,
 297                         .vmux     = SAA7115_COMPOSITE2,
 298                         .amux     = 0,
 299                 }, {
 300                         .type     = EM28XX_VMUX_COMPOSITE1,
 301                         .vmux     = SAA7115_COMPOSITE0,
 302                         .amux     = 1,
 303                 }, {
 304                         .type     = EM28XX_VMUX_SVIDEO,
 305                         .vmux     = SAA7115_SVIDEO3,
 306                         .amux     = 1,
 307                 } },
 308         },
 309         [EM2800_BOARD_KWORLD_USB2800] = {
 310                 .name         = "Kworld USB2800",
 311                 .is_em2800    = 1,
 312                 .vchannels    = 3,
 313                 .tuner_type   = TUNER_PHILIPS_ATSC,
 314                 .tda9887_conf = TDA9887_PRESENT,
 315                 .has_tuner    = 1,
 316                 .decoder      = EM28XX_SAA7113,
 317                 .input          = { {
 318                         .type     = EM28XX_VMUX_TELEVISION,
 319                         .vmux     = SAA7115_COMPOSITE2,
 320                         .amux     = 0,
 321                 }, {
 322                         .type     = EM28XX_VMUX_COMPOSITE1,
 323                         .vmux     = SAA7115_COMPOSITE0,
 324                         .amux     = 1,
 325                 }, {
 326                         .type     = EM28XX_VMUX_SVIDEO,
 327                         .vmux     = SAA7115_SVIDEO3,
 328                         .amux     = 1,
 329                 } },
 330         },
 331         [EM2820_BOARD_PINNACLE_DVC_90] = {
 332                 .name         = "Pinnacle Dazzle DVC 90",
 333                 .vchannels    = 3,
 334                 .has_tuner    = 0,
 335                 .decoder      = EM28XX_SAA7113,
 336                 .input          = { {
 337                         .type     = EM28XX_VMUX_COMPOSITE1,
 338                         .vmux     = SAA7115_COMPOSITE0,
 339                         .amux     = 1,
 340                 }, {
 341                         .type     = EM28XX_VMUX_SVIDEO,
 342                         .vmux     = SAA7115_SVIDEO3,
 343                         .amux     = 1,
 344                 } },
 345         },
 346         [EM2800_BOARD_VGEAR_POCKETTV] = {
 347                 .name         = "V-Gear PocketTV",
 348                 .is_em2800    = 1,
 349                 .vchannels    = 3,
 350                 .tuner_type   = TUNER_LG_PAL_NEW_TAPC,
 351                 .tda9887_conf = TDA9887_PRESENT,
 352                 .has_tuner    = 1,
 353                 .decoder      = EM28XX_SAA7113,
 354                 .input          = { {
 355                         .type     = EM28XX_VMUX_TELEVISION,
 356                         .vmux     = SAA7115_COMPOSITE2,
 357                         .amux     = 0,
 358                 }, {
 359                         .type     = EM28XX_VMUX_COMPOSITE1,
 360                         .vmux     = SAA7115_COMPOSITE0,
 361                         .amux     = 1,
 362                 }, {
 363                         .type     = EM28XX_VMUX_SVIDEO,
 364                         .vmux     = SAA7115_SVIDEO3,
 365                         .amux     = 1,
 366                 } },
 367         },
 368         [EM2820_BOARD_PROLINK_PLAYTV_USB2] = {
 369                 .name         = "Pixelview Prolink PlayTV USB 2.0",
 370                 .vchannels    = 3,
 371                 .tda9887_conf = TDA9887_PRESENT,
 372                 .has_tuner    = 1,
 373                 .decoder      = EM28XX_SAA7113,
 374                 .input          = { {
 375                         .type     = EM28XX_VMUX_TELEVISION,
 376                         .vmux     = SAA7115_COMPOSITE2,
 377                         .amux     = 1,
 378                 }, {
 379                         .type     = EM28XX_VMUX_COMPOSITE1,
 380                         .vmux     = SAA7115_COMPOSITE0,
 381                         .amux     = 1,
 382                 }, {
 383                         .type     = EM28XX_VMUX_SVIDEO,
 384                         .vmux     = SAA7115_SVIDEO3,
 385                         .amux     = 1,
 386                 } },
 387         },
 388 };
 389 const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
 390
 391 /* table of devices that work with this driver */
 392 struct usb_device_id em28xx_id_table [] = {
 393         { USB_DEVICE(0xeb1a, 0x2750),
 394                         .driver_info = EM2820_BOARD_UNKNOWN },
 395         { USB_DEVICE(0xeb1a, 0x2800),
 396                         .driver_info = EM2800_BOARD_UNKNOWN },
 397         { USB_DEVICE(0xeb1a, 0x2820),
 398                         .driver_info = EM2820_BOARD_UNKNOWN },
 399         { USB_DEVICE(0xeb1a, 0x2821),
 400                         .driver_info = EM2820_BOARD_UNKNOWN },
 401         { USB_DEVICE(0xeb1a, 0x2860),
 402                         .driver_info = EM2820_BOARD_UNKNOWN },
 403         { USB_DEVICE(0xeb1a, 0x2861),
 404                         .driver_info = EM2820_BOARD_UNKNOWN },
 405         { USB_DEVICE(0xeb1a, 0x2870),
 406                         .driver_info = EM2820_BOARD_UNKNOWN },
 407         { USB_DEVICE(0xeb1a, 0x2881),
 408                         .driver_info = EM2820_BOARD_UNKNOWN },
 409         { USB_DEVICE(0xeb1a, 0x2883),
 410                         .driver_info = EM2820_BOARD_UNKNOWN },
 411         { USB_DEVICE(0x0ccd, 0x0036),
 412                         .driver_info = EM2820_BOARD_TERRATEC_CINERGY_250 },
 413         { USB_DEVICE(0x2304, 0x0208),
 414                         .driver_info = EM2820_BOARD_PINNACLE_USB_2 },
 415         { USB_DEVICE(0x2040, 0x4200),
 416                         .driver_info = EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 },
 417         { USB_DEVICE(0x2304, 0x0207),
 418                         .driver_info = EM2820_BOARD_PINNACLE_DVC_90 },
 419         { USB_DEVICE(0x2040, 0x6500),
 420                         .driver_info = EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 },
 421         { USB_DEVICE(0x2040, 0x6513),
 422                         .driver_info = EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950 },
 423         { USB_DEVICE(0x0ccd, 0x0042),
 424                         .driver_info = EM2880_BOARD_TERRATEC_HYBRID_XS },
 425         { USB_DEVICE(0x0ccd, 0x0047),
 426                         .driver_info = EM2880_BOARD_TERRATEC_PRODIGY_XS },
 427         { },
 428 };
 429 MODULE_DEVICE_TABLE(usb, em28xx_id_table);
 430
 431 /* EEPROM hash table for devices with generic USB IDs */
 432 static struct em28xx_hash_table em28xx_eeprom_hash [] = {
 433         /* P/N: SA 60002070465 Tuner: TVF7533-MF */
 434         {0x6ce05a8f, EM2820_BOARD_PROLINK_PLAYTV_USB2, TUNER_YMEC_TVF_5533MF},
 435 };
 436
 437 /* I2C devicelist hash table for devices with generic USB IDs */
 438 static struct em28xx_hash_table em28xx_i2c_hash[] = {
 439         {0xb06a32c3, EM2800_BOARD_TERRATEC_CINERGY_200, TUNER_LG_PAL_NEW_TAPC},
 440         {0xf51200e3, EM2800_BOARD_VGEAR_POCKETTV, TUNER_LG_PAL_NEW_TAPC},
 441 };
 442
 443 /* Since em28xx_pre_card_setup() requires a proper dev->model,
 444  * this won't work for boards with generic PCI IDs
 445  */
 446 void em28xx_pre_card_setup(struct em28xx *dev)
 447 {
 448         /* request some modules */
 449         switch (dev->model) {
 450         case EM2880_BOARD_TERRATEC_PRODIGY_XS:
 451         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
 452         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950:
 453         case EM2880_BOARD_TERRATEC_HYBRID_XS:
 454                 /* reset through GPIO? */
 455                 em28xx_write_regs_req(dev, 0x00, 0x08, "\x7d", 1);
 456                 break;
 457         }
 458 }
 459
 460 static int em28xx_tuner_callback(void *ptr, int command, int arg)
 461 {
 462         int rc = 0;
 463         struct em28xx *dev = ptr;
 464
 465         if (dev->tuner_type != TUNER_XC2028)
 466                 return 0;
 467
 468         switch (command) {
 469         case XC2028_TUNER_RESET:
 470                 /* FIXME: This is device-dependent */
 471                 dev->em28xx_write_regs_req(dev, 0x00, 0x48, "\x00", 1);
 472                 dev->em28xx_write_regs_req(dev, 0x00, 0x12, "\x67", 1);
 473
 474                 msleep(140);
 475                 break;
 476         }
 477         return rc;
 478 }
 479
 480 static void em28xx_config_tuner(struct em28xx *dev)
 481 {
 482         struct v4l2_priv_tun_config  xc2028_cfg;
 483         struct xc2028_ctrl           ctl;
 484         struct tuner_setup           tun_setup;
 485         struct v4l2_frequency        f;
 486
 487         if (!dev->has_tuner)
 488                 return;
 489
 490         tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
 491         tun_setup.type = dev->tuner_type;
 492         tun_setup.addr = dev->tuner_addr;
 493         tun_setup.tuner_callback = em28xx_tuner_callback;
 494
 495         em28xx_i2c_call_clients(dev, TUNER_SET_TYPE_ADDR, &tun_setup);
 496
 497         if (dev->tuner_type == TUNER_XC2028) {
 498                 memset(&ctl, 0, sizeof(ctl));
 499
 500                 ctl.fname   = XC2028_DEFAULT_FIRMWARE;
 501                 ctl.max_len = 64;
 502                 ctl.mts = em28xx_boards[dev->model].mts_firmware;
 503
 504                 xc2028_cfg.tuner = TUNER_XC2028;
 505                 xc2028_cfg.priv  = &ctl;
 506
 507                 em28xx_i2c_call_clients(dev, TUNER_SET_CONFIG, &xc2028_cfg);
 508         }
 509
 510         /* configure tuner */
 511         f.tuner = 0;
 512         f.type = V4L2_TUNER_ANALOG_TV;
 513         f.frequency = 9076;     /* just a magic number */
 514         dev->ctl_freq = f.frequency;
 515         em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);
 516 }
 517
 518 static int em28xx_hint_board(struct em28xx *dev)
 519 {
 520         int i;
 521
 522         /* HINT method: EEPROM
 523          *
 524          * This method works only for boards with eeprom.
 525          * Uses a hash of all eeprom bytes. The hash should be
 526          * unique for a vendor/tuner pair.
 527          * There are a high chance that tuners for different
 528          * video standards produce different hashes.
 529          */
 530         for (i = 0; i < ARRAY_SIZE(em28xx_eeprom_hash); i++) {
 531                 if (dev->hash == em28xx_eeprom_hash[i].hash) {
 532                         dev->model = em28xx_eeprom_hash[i].model;
 533                         dev->tuner_type = em28xx_eeprom_hash[i].tuner;
 534
 535                         em28xx_errdev("Your board has no unique USB ID.\n");
 536                         em28xx_errdev("A hint were successfully done, "
 537                                       "based on eeprom hash.\n");
 538                         em28xx_errdev("This method is not 100%% failproof.\n");
 539                         em28xx_errdev("If the board were missdetected, "
 540                                       "please email this log to:\n");
 541                         em28xx_errdev("\tV4L Mailing List "
 542                                       " <video4linux-list@redhat.com>\n");
 543                         em28xx_errdev("Board detected as %s\n",
 544                                       em28xx_boards[dev->model].name);
 545
 546                         return 0;
 547                 }
 548         }
 549
 550         /* HINT method: I2C attached devices
 551          *
 552          * This method works for all boards.
 553          * Uses a hash of i2c scanned devices.
 554          * Devices with the same i2c attached chips will
 555          * be considered equal.
 556          * This method is less precise than the eeprom one.
 557          */
 558
 559         /* user did not request i2c scanning => do it now */
 560         if (!dev->i2c_hash)
 561                 em28xx_do_i2c_scan(dev);
 562
 563         for (i = 0; i < ARRAY_SIZE(em28xx_i2c_hash); i++) {
 564                 if (dev->i2c_hash == em28xx_i2c_hash[i].hash) {
 565                         dev->model = em28xx_i2c_hash[i].model;
 566                         dev->tuner_type = em28xx_i2c_hash[i].tuner;
 567                         em28xx_errdev("Your board has no unique USB ID.\n");
 568                         em28xx_errdev("A hint were successfully done, "
 569                                       "based on i2c devicelist hash.\n");
 570                         em28xx_errdev("This method is not 100%% failproof.\n");
 571                         em28xx_errdev("If the board were missdetected, "
 572                                       "please email this log to:\n");
 573                         em28xx_errdev("\tV4L Mailing List "
 574                                       " <video4linux-list@redhat.com>\n");
 575                         em28xx_errdev("Board detected as %s\n",
 576                                       em28xx_boards[dev->model].name);
 577
 578                         return 0;
 579                 }
 580         }
 581
 582         em28xx_errdev("Your board has no unique USB ID and thus need a "
 583                       "hint to be detected.\n");
 584         em28xx_errdev("You may try to use card=<n> insmod option to "
 585                       "workaround that.\n");
 586         em28xx_errdev("Please send an email with this log to:\n");
 587         em28xx_errdev("\tV4L Mailing List <video4linux-list@redhat.com>\n");
 588         em28xx_errdev("Board eeprom hash is 0x%08lx\n", dev->hash);
 589         em28xx_errdev("Board i2c devicelist hash is 0x%08lx\n", dev->i2c_hash);
 590
 591         em28xx_errdev("Here is a list of valid choices for the card=<n>"
 592                       " insmod option:\n");
 593         for (i = 0; i < em28xx_bcount; i++) {
 594                 em28xx_errdev("    card=%d -> %s\n",
 595                                 i, em28xx_boards[i].name);
 596         }
 597         return -1;
 598 }
 599
 600
 601 static void em28xx_set_model(struct em28xx *dev)
 602 {
 603         dev->is_em2800 = em28xx_boards[dev->model].is_em2800;
 604         dev->has_tuner = em28xx_boards[dev->model].has_tuner;
 605         dev->has_msp34xx = em28xx_boards[dev->model].has_msp34xx;
 606         dev->tda9887_conf = em28xx_boards[dev->model].tda9887_conf;
 607         dev->decoder = em28xx_boards[dev->model].decoder;
 608         dev->video_inputs = em28xx_boards[dev->model].vchannels;
 609
 610         if (!em28xx_boards[dev->model].has_tuner)
 611                 dev->tuner_type = UNSET;
 612 }
 613
 614 void em28xx_card_setup(struct em28xx *dev)
 615 {
 616         em28xx_set_model(dev);
 617
 618         dev->tuner_type = em28xx_boards[dev->model].tuner_type;
 619
 620         /* request some modules */
 621         switch (dev->model) {
 622         case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2:
 623         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
 624         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950:
 625         {
 626                 struct tveeprom tv;
 627 #ifdef CONFIG_MODULES
 628                 request_module("tveeprom");
 629 #endif
 630                 /* Call first TVeeprom */
 631
 632                 dev->i2c_client.addr = 0xa0 >> 1;
 633                 tveeprom_hauppauge_analog(&dev->i2c_client, &tv, dev->eedata);
 634
 635                 dev->tuner_type = tv.tuner_type;
 636                 if (tv.audio_processor == AUDIO_CHIP_MSP34XX) {
 637                         dev->i2s_speed = 2048000;
 638                         dev->has_msp34xx = 1;
 639                 }
 640 #ifdef CONFIG_MODULES
 641                 if (tv.has_ir)
 642                         request_module("ir-kbd-i2c");
 643 #endif
 644                 /* FIXME: Should also retrieve decoder processor type */
 645
 646                 break;
 647         }
 648         case EM2820_BOARD_KWORLD_PVRTV2800RF:
 649                 /* GPIO enables sound on KWORLD PVR TV 2800RF */
 650                 em28xx_write_regs_req(dev, 0x00, 0x08, "\xf9", 1);
 651                 break;
 652         case EM2820_BOARD_UNKNOWN:
 653         case EM2800_BOARD_UNKNOWN:
 654                 if (!em28xx_hint_board(dev))
 655                         em28xx_set_model(dev);
 656         }
 657
 658         /* Allow override tuner type by a module parameter */
 659         if (tuner >= 0)
 660                 dev->tuner_type = tuner;
 661
 662 #ifdef CONFIG_MODULES
 663         /* request some modules */
 664         if (dev->has_msp34xx)
 665                 request_module("msp3400");
 666         if (dev->decoder == EM28XX_SAA7113 || dev->decoder == EM28XX_SAA7114)
 667                 request_module("saa7115");
 668         if (dev->decoder == EM28XX_TVP5150)
 669                 request_module("tvp5150");
 670         if (dev->has_tuner)
 671                 request_module("tuner");
 672 #endif
 673
 674         em28xx_config_tuner(dev);
 675 }