drivers/media/video/tda9887.c

   1 #include <linux/module.h>
   2 #include <linux/moduleparam.h>
   3 #include <linux/kernel.h>
   4 #include <linux/i2c.h>
   5 #include <linux/types.h>
   6 #include <linux/videodev.h>
   7 #include <linux/init.h>
   8 #include <linux/errno.h>
   9 #include <linux/slab.h>
  10 #include <linux/delay.h>
  11
  12 #include <media/audiochip.h>
  13 #include <media/tuner.h>
  14
  15
  16 /* Chips:
  17    TDA9885 (PAL, NTSC)
  18    TDA9886 (PAL, SECAM, NTSC)
  19    TDA9887 (PAL, SECAM, NTSC, FM Radio)
  20
  21    found on:
  22    - Pinnacle PCTV (Jul.2002 Version with MT2032, bttv)
  23       TDA9887 (world), TDA9885 (USA)
  24       Note: OP2 of tda988x must be set to 1, else MT2032 is disabled!
  25    - KNC One TV-Station RDS (saa7134)
  26    - Hauppauge PVR-150/500 (possibly more)
  27 */
  28
  29
  30 /* Addresses to scan */
  31 static unsigned short normal_i2c[] = {
  32         0x84 >>1,
  33         0x86 >>1,
  34         0x96 >>1,
  35         I2C_CLIENT_END,
  36 };
  37 I2C_CLIENT_INSMOD;
  38
  39 /* insmod options */
  40 static unsigned int debug = 0;
  41 module_param(debug, int, 0644);
  42 MODULE_LICENSE("GPL");
  43
  44 /* ---------------------------------------------------------------------- */
  45
  46 #define UNSET       (-1U)
  47 #define tda9887_info(fmt, arg...) do {\
  48         printk(KERN_INFO "%s %d-%04x: " fmt, t->client.name, \
  49                         i2c_adapter_id(t->client.adapter), t->client.addr , ##arg); } while (0)
  50 #define tda9887_dbg(fmt, arg...) do {\
  51         if (debug) \
  52                 printk(KERN_INFO "%s %d-%04x: " fmt, t->client.name, \
  53                         i2c_adapter_id(t->client.adapter), t->client.addr , ##arg); } while (0)
  54
  55 struct tda9887 {
  56         struct i2c_client  client;
  57         v4l2_std_id        std;
  58         enum tuner_mode    mode;
  59         unsigned int       config;
  60         unsigned int       pinnacle_id;
  61         unsigned int       using_v4l2;
  62         unsigned int       radio_mode;
  63         unsigned char      data[4];
  64 };
  65
  66 struct tvnorm {
  67         v4l2_std_id       std;
  68         char              *name;
  69         unsigned char     b;
  70         unsigned char     c;
  71         unsigned char     e;
  72 };
  73
  74 static struct i2c_driver driver;
  75 static struct i2c_client client_template;
  76
  77 /* ---------------------------------------------------------------------- */
  78
  79 //
  80 // TDA defines
  81 //
  82
  83 //// first reg (b)
  84 #define cVideoTrapBypassOFF     0x00    // bit b0
  85 #define cVideoTrapBypassON      0x01    // bit b0
  86
  87 #define cAutoMuteFmInactive     0x00    // bit b1
  88 #define cAutoMuteFmActive       0x02    // bit b1
  89
  90 #define cIntercarrier           0x00    // bit b2
  91 #define cQSS                    0x04    // bit b2
  92
  93 #define cPositiveAmTV           0x00    // bit b3:4
  94 #define cFmRadio                0x08    // bit b3:4
  95 #define cNegativeFmTV           0x10    // bit b3:4
  96
  97
  98 #define cForcedMuteAudioON      0x20    // bit b5
  99 #define cForcedMuteAudioOFF     0x00    // bit b5
 100
 101 #define cOutputPort1Active      0x00    // bit b6
 102 #define cOutputPort1Inactive    0x40    // bit b6
 103
 104 #define cOutputPort2Active      0x00    // bit b7
 105 #define cOutputPort2Inactive    0x80    // bit b7
 106
 107
 108 //// second reg (c)
 109 #define cDeemphasisOFF          0x00    // bit c5
 110 #define cDeemphasisON           0x20    // bit c5
 111
 112 #define cDeemphasis75           0x00    // bit c6
 113 #define cDeemphasis50           0x40    // bit c6
 114
 115 #define cAudioGain0             0x00    // bit c7
 116 #define cAudioGain6             0x80    // bit c7
 117
 118
 119 //// third reg (e)
 120 #define cAudioIF_4_5             0x00    // bit e0:1
 121 #define cAudioIF_5_5             0x01    // bit e0:1
 122 #define cAudioIF_6_0             0x02    // bit e0:1
 123 #define cAudioIF_6_5             0x03    // bit e0:1
 124
 125
 126 #define cVideoIF_58_75           0x00    // bit e2:4
 127 #define cVideoIF_45_75           0x04    // bit e2:4
 128 #define cVideoIF_38_90           0x08    // bit e2:4
 129 #define cVideoIF_38_00           0x0C    // bit e2:4
 130 #define cVideoIF_33_90           0x10    // bit e2:4
 131 #define cVideoIF_33_40           0x14    // bit e2:4
 132 #define cRadioIF_45_75           0x18    // bit e2:4
 133 #define cRadioIF_38_90           0x1C    // bit e2:4
 134
 135
 136 #define cTunerGainNormal         0x00    // bit e5
 137 #define cTunerGainLow            0x20    // bit e5
 138
 139 #define cGating_18               0x00    // bit e6
 140 #define cGating_36               0x40    // bit e6
 141
 142 #define cAgcOutON                0x80    // bit e7
 143 #define cAgcOutOFF               0x00    // bit e7
 144
 145 /* ---------------------------------------------------------------------- */
 146
 147 static struct tvnorm tvnorms[] = {
 148         {
 149                 .std   = V4L2_STD_PAL_BG,
 150                 .name  = "PAL-BG",
 151                 .b     = ( cNegativeFmTV  |
 152                            cQSS           ),
 153                 .c     = ( cDeemphasisON  |
 154                            cDeemphasis50  ),
 155                 .e     = ( cAudioIF_5_5   |
 156                            cVideoIF_38_90 ),
 157         },{
 158                 .std   = V4L2_STD_PAL_I,
 159                 .name  = "PAL-I",
 160                 .b     = ( cNegativeFmTV  |
 161                            cQSS           ),
 162                 .c     = ( cDeemphasisON  |
 163                            cDeemphasis50  ),
 164                 .e     = ( cAudioIF_6_0   |
 165                            cVideoIF_38_90 ),
 166         },{
 167                 .std   = V4L2_STD_PAL_DK,
 168                 .name  = "PAL-DK",
 169                 .b     = ( cNegativeFmTV  |
 170                            cQSS           ),
 171                 .c     = ( cDeemphasisON  |
 172                            cDeemphasis50  ),
 173                 .e     = ( cAudioIF_6_5   |
 174                            cVideoIF_38_00 ),
 175         },{
 176                 .std   = V4L2_STD_PAL_M | V4L2_STD_PAL_N,
 177                 .name  = "PAL-M/N",
 178                 .b     = ( cNegativeFmTV  |
 179                            cQSS           ),
 180                 .c     = ( cDeemphasisON  |
 181                            cDeemphasis75  ),
 182                 .e     = ( cAudioIF_4_5   |
 183                            cVideoIF_45_75 ),
 184         },{
 185                 .std   = V4L2_STD_SECAM_L,
 186                 .name  = "SECAM-L",
 187                 .b     = ( cPositiveAmTV  |
 188                            cQSS           ),
 189                 .e     = ( cGating_36     |
 190                            cAudioIF_6_5   |
 191                            cVideoIF_38_90 ),
 192         },{
 193                 .std   = V4L2_STD_SECAM_DK,
 194                 .name  = "SECAM-DK",
 195                 .b     = ( cNegativeFmTV  |
 196                            cQSS           ),
 197                 .c     = ( cDeemphasisON  |
 198                            cDeemphasis50  ),
 199                 .e     = ( cAudioIF_6_5   |
 200                            cVideoIF_38_00 ),
 201         },{
 202                 .std   = V4L2_STD_NTSC_M,
 203                 .name  = "NTSC-M",
 204                 .b     = ( cNegativeFmTV  |
 205                            cQSS           ),
 206                 .c     = ( cDeemphasisON  |
 207                            cDeemphasis75  ),
 208                 .e     = ( cGating_36     |
 209                            cAudioIF_4_5   |
 210                            cVideoIF_45_75 ),
 211         },{
 212                 .std   = V4L2_STD_NTSC_M_JP,
 213                 .name  = "NTSC-JP",
 214                 .b     = ( cNegativeFmTV  |
 215                            cQSS           ),
 216                 .c     = ( cDeemphasisON  |
 217                            cDeemphasis50  ),
 218                 .e     = ( cGating_36     |
 219                            cAudioIF_4_5   |
 220                            cVideoIF_58_75 ),
 221         }
 222 };
 223
 224 static struct tvnorm radio_stereo = {
 225         .name = "Radio Stereo",
 226         .b    = ( cFmRadio       |
 227                   cQSS           ),
 228         .c    = ( cDeemphasisOFF |
 229                   cAudioGain6 ),
 230         .e    = ( cAudioIF_5_5   |
 231                   cRadioIF_38_90 ),
 232 };
 233
 234 static struct tvnorm radio_mono = {
 235         .name = "Radio Mono",
 236         .b    = ( cFmRadio       |
 237                   cQSS           ),
 238         .c    = ( cDeemphasisON  |
 239                   cDeemphasis50),
 240         .e    = ( cAudioIF_5_5   |
 241                   cRadioIF_38_90 ),
 242 };
 243
 244 /* ---------------------------------------------------------------------- */
 245
 246 static void dump_read_message(struct tda9887 *t, unsigned char *buf)
 247 {
 248         static char *afc[16] = {
 249                 "- 12.5 kHz",
 250                 "- 37.5 kHz",
 251                 "- 62.5 kHz",
 252                 "- 87.5 kHz",
 253                 "-112.5 kHz",
 254                 "-137.5 kHz",
 255                 "-162.5 kHz",
 256                 "-187.5 kHz [min]",
 257                 "+187.5 kHz [max]",
 258                 "+162.5 kHz",
 259                 "+137.5 kHz",
 260                 "+112.5 kHz",
 261                 "+ 87.5 kHz",
 262                 "+ 62.5 kHz",
 263                 "+ 37.5 kHz",
 264                 "+ 12.5 kHz",
 265         };
 266         tda9887_info("read: 0x%2x\n", buf[0]);
 267         tda9887_info("  after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
 268         tda9887_info("  afc            : %s\n", afc[(buf[0] >> 1) & 0x0f]);
 269         tda9887_info("  fmif level     : %s\n", (buf[0] & 0x20) ? "high" : "low");
 270         tda9887_info("  afc window     : %s\n", (buf[0] & 0x40) ? "in" : "out");
 271         tda9887_info("  vfi level      : %s\n", (buf[0] & 0x80) ? "high" : "low");
 272 }
 273
 274 static void dump_write_message(struct tda9887 *t, unsigned char *buf)
 275 {
 276         static char *sound[4] = {
 277                 "AM/TV",
 278                 "FM/radio",
 279                 "FM/TV",
 280                 "FM/radio"
 281         };
 282         static char *adjust[32] = {
 283                 "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
 284                 "-8",  "-7",  "-6",  "-5",  "-4",  "-3",  "-2",  "-1",
 285                 "0",   "+1",  "+2",  "+3",  "+4",  "+5",  "+6",  "+7",
 286                 "+8",  "+9",  "+10", "+11", "+12", "+13", "+14", "+15"
 287         };
 288         static char *deemph[4] = {
 289                 "no", "no", "75", "50"
 290         };
 291         static char *carrier[4] = {
 292                 "4.5 MHz",
 293                 "5.5 MHz",
 294                 "6.0 MHz",
 295                 "6.5 MHz / AM"
 296         };
 297         static char *vif[8] = {
 298                 "58.75 MHz",
 299                 "45.75 MHz",
 300                 "38.9 MHz",
 301                 "38.0 MHz",
 302                 "33.9 MHz",
 303                 "33.4 MHz",
 304                 "45.75 MHz + pin13",
 305                 "38.9 MHz + pin13",
 306         };
 307         static char *rif[4] = {
 308                 "44 MHz",
 309                 "52 MHz",
 310                 "52 MHz",
 311                 "44 MHz",
 312         };
 313
 314         tda9887_info("write: byte B 0x%02x\n",buf[1]);
 315         tda9887_info("  B0   video mode      : %s\n",
 316                (buf[1] & 0x01) ? "video trap" : "sound trap");
 317         tda9887_info("  B1   auto mute fm    : %s\n",
 318                (buf[1] & 0x02) ? "yes" : "no");
 319         tda9887_info("  B2   carrier mode    : %s\n",
 320                (buf[1] & 0x04) ? "QSS" : "Intercarrier");
 321         tda9887_info("  B3-4 tv sound/radio  : %s\n",
 322                sound[(buf[1] & 0x18) >> 3]);
 323         tda9887_info("  B5   force mute audio: %s\n",
 324                (buf[1] & 0x20) ? "yes" : "no");
 325         tda9887_info("  B6   output port 1   : %s\n",
 326                (buf[1] & 0x40) ? "high (inactive)" : "low (active)");
 327         tda9887_info("  B7   output port 2   : %s\n",
 328                (buf[1] & 0x80) ? "high (inactive)" : "low (active)");
 329
 330         tda9887_info("write: byte C 0x%02x\n",buf[2]);
 331         tda9887_info("  C0-4 top adjustment  : %s dB\n", adjust[buf[2] & 0x1f]);
 332         tda9887_info("  C5-6 de-emphasis     : %s\n", deemph[(buf[2] & 0x60) >> 5]);
 333         tda9887_info("  C7   audio gain      : %s\n",
 334                (buf[2] & 0x80) ? "-6" : "0");
 335
 336         tda9887_info("write: byte E 0x%02x\n",buf[3]);
 337         tda9887_info("  E0-1 sound carrier   : %s\n",
 338                carrier[(buf[3] & 0x03)]);
 339         tda9887_info("  E6   l pll gating   : %s\n",
 340                (buf[3] & 0x40) ? "36" : "13");
 341
 342         if (buf[1] & 0x08) {
 343                 /* radio */
 344                 tda9887_info("  E2-4 video if        : %s\n",
 345                        rif[(buf[3] & 0x0c) >> 2]);
 346                 tda9887_info("  E7   vif agc output  : %s\n",
 347                        (buf[3] & 0x80)
 348                        ? ((buf[3] & 0x10) ? "fm-agc radio" : "sif-agc radio")
 349                        : "fm radio carrier afc");
 350         } else {
 351                 /* video */
 352                 tda9887_info("  E2-4 video if        : %s\n",
 353                        vif[(buf[3] & 0x1c) >> 2]);
 354                 tda9887_info("  E5   tuner gain      : %s\n",
 355                        (buf[3] & 0x80)
 356                        ? ((buf[3] & 0x20) ? "external" : "normal")
 357                        : ((buf[3] & 0x20) ? "minimum"  : "normal"));
 358                 tda9887_info("  E7   vif agc output  : %s\n",
 359                        (buf[3] & 0x80)
 360                        ? ((buf[3] & 0x20)
 361                           ? "pin3 port, pin22 vif agc out"
 362                           : "pin22 port, pin3 vif acg ext in")
 363                        : "pin3+pin22 port");
 364         }
 365         tda9887_info("--\n");
 366 }
 367
 368 /* ---------------------------------------------------------------------- */
 369
 370 static int tda9887_set_tvnorm(struct tda9887 *t, char *buf)
 371 {
 372         struct tvnorm *norm = NULL;
 373         int i;
 374
 375         if (t->mode == T_RADIO) {
 376                 if (t->radio_mode == V4L2_TUNER_MODE_MONO)
 377                         norm = &radio_mono;
 378                 else
 379                         norm = &radio_stereo;
 380         } else {
 381                 for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
 382                         if (tvnorms[i].std & t->std) {
 383                                 norm = tvnorms+i;
 384                                 break;
 385                         }
 386                 }
 387         }
 388         if (NULL == norm) {
 389                 tda9887_dbg("Unsupported tvnorm entry - audio muted\n");
 390                 return -1;
 391         }
 392
 393         tda9887_dbg("configure for: %s\n",norm->name);
 394         buf[1] = norm->b;
 395         buf[2] = norm->c;
 396         buf[3] = norm->e;
 397         return 0;
 398 }
 399
 400 static unsigned int port1  = UNSET;
 401 static unsigned int port2  = UNSET;
 402 static unsigned int qss    = UNSET;
 403 static unsigned int adjust = 0x10;
 404 module_param(port1, int, 0644);
 405 module_param(port2, int, 0644);
 406 module_param(qss, int, 0644);
 407 module_param(adjust, int, 0644);
 408
 409 static int tda9887_set_insmod(struct tda9887 *t, char *buf)
 410 {
 411         if (UNSET != port1) {
 412                 if (port1)
 413                         buf[1] |= cOutputPort1Inactive;
 414                 else
 415                         buf[1] &= ~cOutputPort1Inactive;
 416         }
 417         if (UNSET != port2) {
 418                 if (port2)
 419                         buf[1] |= cOutputPort2Inactive;
 420                 else
 421                         buf[1] &= ~cOutputPort2Inactive;
 422         }
 423
 424         if (UNSET != qss) {
 425                 if (qss)
 426                         buf[1] |= cQSS;
 427                 else
 428                         buf[1] &= ~cQSS;
 429         }
 430
 431         if (adjust >= 0x00 && adjust < 0x20)
 432                 buf[2] |= adjust;
 433         return 0;
 434 }
 435
 436 static int tda9887_set_config(struct tda9887 *t, char *buf)
 437 {
 438         if (t->config & TDA9887_PORT1_ACTIVE)
 439                 buf[1] &= ~cOutputPort1Inactive;
 440         if (t->config & TDA9887_PORT1_INACTIVE)
 441                 buf[1] |= cOutputPort1Inactive;
 442         if (t->config & TDA9887_PORT2_ACTIVE)
 443                 buf[1] &= ~cOutputPort2Inactive;
 444         if (t->config & TDA9887_PORT2_INACTIVE)
 445                 buf[1] |= cOutputPort2Inactive;
 446
 447         if (t->config & TDA9887_QSS)
 448                 buf[1] |= cQSS;
 449         if (t->config & TDA9887_INTERCARRIER)
 450                 buf[1] &= ~cQSS;
 451
 452         if (t->config & TDA9887_AUTOMUTE)
 453                 buf[1] |= cAutoMuteFmActive;
 454         if (t->config & TDA9887_DEEMPHASIS_MASK) {
 455                 buf[2] &= ~0x60;
 456                 switch (t->config & TDA9887_DEEMPHASIS_MASK) {
 457                 case TDA9887_DEEMPHASIS_NONE:
 458                         buf[2] |= cDeemphasisOFF;
 459                         break;
 460                 case TDA9887_DEEMPHASIS_50:
 461                         buf[2] |= cDeemphasisON | cDeemphasis50;
 462                         break;
 463                 case TDA9887_DEEMPHASIS_75:
 464                         buf[2] |= cDeemphasisON | cDeemphasis75;
 465                         break;
 466                 }
 467         }
 468         if ((t->config & TDA9887_INTERCARRIER_NTSC) && (t->std & V4L2_STD_NTSC))
 469                 buf[1] &= ~cQSS;
 470         return 0;
 471 }
 472
 473 /* ---------------------------------------------------------------------- */
 474
 475 static int tda9887_set_pinnacle(struct tda9887 *t, char *buf)
 476 {
 477         unsigned int bCarrierMode = UNSET;
 478
 479         if (t->std & V4L2_STD_625_50) {
 480                 if ((1 == t->pinnacle_id) || (7 == t->pinnacle_id)) {
 481                         bCarrierMode = cIntercarrier;
 482                 } else {
 483                         bCarrierMode = cQSS;
 484                 }
 485         }
 486         if (t->std & V4L2_STD_525_60) {
 487                 if ((5 == t->pinnacle_id) || (6 == t->pinnacle_id)) {
 488                         bCarrierMode = cIntercarrier;
 489                 } else {
 490                         bCarrierMode = cQSS;
 491                 }
 492         }
 493
 494         if (bCarrierMode != UNSET) {
 495                 buf[1] &= ~0x04;
 496                 buf[1] |= bCarrierMode;
 497         }
 498         return 0;
 499 }
 500
 501 /* ---------------------------------------------------------------------- */
 502
 503 static char pal[] = "-";
 504 module_param_string(pal, pal, sizeof(pal), 0644);
 505 static char secam[] = "-";
 506 module_param_string(secam, secam, sizeof(secam), 0644);
 507
 508 static int tda9887_fixup_std(struct tda9887 *t)
 509 {
 510         /* get more precise norm info from insmod option */
 511         if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
 512                 switch (pal[0]) {
 513                 case 'b':
 514                 case 'B':
 515                 case 'g':
 516                 case 'G':
 517                         tda9887_dbg("insmod fixup: PAL => PAL-BG\n");
 518                         t->std = V4L2_STD_PAL_BG;
 519                         break;
 520                 case 'i':
 521                 case 'I':
 522                         tda9887_dbg("insmod fixup: PAL => PAL-I\n");
 523                         t->std = V4L2_STD_PAL_I;
 524                         break;
 525                 case 'd':
 526                 case 'D':
 527                 case 'k':
 528                 case 'K':
 529                         tda9887_dbg("insmod fixup: PAL => PAL-DK\n");
 530                         t->std = V4L2_STD_PAL_DK;
 531                         break;
 532                 case '-':
 533                         /* default parameter, do nothing */
 534                         break;
 535                 default:
 536                         tda9887_info("pal= argument not recognised\n");
 537                         break;
 538                 }
 539         }
 540         if ((t->std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
 541                 switch (secam[0]) {
 542                 case 'd':
 543                 case 'D':
 544                 case 'k':
 545                 case 'K':
 546                         tda9887_dbg("insmod fixup: SECAM => SECAM-DK\n");
 547                         t->std = V4L2_STD_SECAM_DK;
 548                         break;
 549                 case 'l':
 550                 case 'L':
 551                         tda9887_dbg("insmod fixup: SECAM => SECAM-L\n");
 552                         t->std = V4L2_STD_SECAM_L;
 553                         break;
 554                 case '-':
 555                         /* default parameter, do nothing */
 556                         break;
 557                 default:
 558                         tda9887_info("secam= argument not recognised\n");
 559                         break;
 560                 }
 561         }
 562         return 0;
 563 }
 564
 565 static int tda9887_status(struct tda9887 *t)
 566 {
 567         unsigned char buf[1];
 568         int rc;
 569
 570         memset(buf,0,sizeof(buf));
 571         if (1 != (rc = i2c_master_recv(&t->client,buf,1)))
 572                 tda9887_info("i2c i/o error: rc == %d (should be 1)\n",rc);
 573         dump_read_message(t, buf);
 574         return 0;
 575 }
 576
 577 static int tda9887_configure(struct tda9887 *t)
 578 {
 579         int rc;
 580
 581         memset(t->data,0,sizeof(t->data));
 582         tda9887_set_tvnorm(t,t->data);
 583
 584         t->data[1] |= cOutputPort1Inactive;
 585         t->data[1] |= cOutputPort2Inactive;
 586
 587         if (UNSET != t->pinnacle_id) {
 588                 tda9887_set_pinnacle(t,t->data);
 589         }
 590         tda9887_set_config(t,t->data);
 591         tda9887_set_insmod(t,t->data);
 592
 593         if (t->mode == T_STANDBY) {
 594                 t->data[1] |= cForcedMuteAudioON;
 595         }
 596
 597
 598         tda9887_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n",
 599                 t->data[1],t->data[2],t->data[3]);
 600         if (debug > 1)
 601                 dump_write_message(t, t->data);
 602
 603         if (4 != (rc = i2c_master_send(&t->client,t->data,4)))
 604                 tda9887_info("i2c i/o error: rc == %d (should be 4)\n",rc);
 605
 606         if (debug > 2) {
 607                 msleep_interruptible(1000);
 608                 tda9887_status(t);
 609         }
 610         return 0;
 611 }
 612
 613 /* ---------------------------------------------------------------------- */
 614
 615 static int tda9887_attach(struct i2c_adapter *adap, int addr, int kind)
 616 {
 617         struct tda9887 *t;
 618
 619         client_template.adapter = adap;
 620         client_template.addr    = addr;
 621
 622         if (NULL == (t = kmalloc(sizeof(*t), GFP_KERNEL)))
 623                 return -ENOMEM;
 624         memset(t,0,sizeof(*t));
 625
 626         t->client      = client_template;
 627         t->std         = 0;
 628         t->pinnacle_id = UNSET;
 629         t->radio_mode = V4L2_TUNER_MODE_STEREO;
 630
 631         tda9887_info("chip found @ 0x%x (%s)\n", addr<<1, adap->name);
 632
 633         i2c_set_clientdata(&t->client, t);
 634         i2c_attach_client(&t->client);
 635
 636         return 0;
 637 }
 638
 639 static int tda9887_probe(struct i2c_adapter *adap)
 640 {
 641 #ifdef I2C_CLASS_TV_ANALOG
 642         if (adap->class & I2C_CLASS_TV_ANALOG)
 643                 return i2c_probe(adap, &addr_data, tda9887_attach);
 644 #else
 645         switch (adap->id) {
 646         case I2C_HW_B_BT848:
 647         case I2C_HW_B_RIVA:
 648         case I2C_HW_SAA7134:
 649                 return i2c_probe(adap, &addr_data, tda9887_attach);
 650                 break;
 651         }
 652 #endif
 653         return 0;
 654 }
 655
 656 static int tda9887_detach(struct i2c_client *client)
 657 {
 658         struct tda9887 *t = i2c_get_clientdata(client);
 659
 660         i2c_detach_client(client);
 661         kfree(t);
 662         return 0;
 663 }
 664
 665 #define SWITCH_V4L2     if (!t->using_v4l2 && debug) \
 666                           tda9887_info("switching to v4l2\n"); \
 667                           t->using_v4l2 = 1;
 668 #define CHECK_V4L2      if (t->using_v4l2) { if (debug) \
 669                           tda9887_info("ignore v4l1 call\n"); \
 670                           return 0; }
 671
 672 static int
 673 tda9887_command(struct i2c_client *client, unsigned int cmd, void *arg)
 674 {
 675         struct tda9887 *t = i2c_get_clientdata(client);
 676
 677         switch (cmd) {
 678
 679         /* --- configuration --- */
 680         case AUDC_SET_RADIO:
 681         {
 682                 t->mode = T_RADIO;
 683                 tda9887_configure(t);
 684                 break;
 685         }
 686         case TUNER_SET_STANDBY:
 687         {
 688                 t->mode = T_STANDBY;
 689                 tda9887_configure(t);
 690                 break;
 691         }
 692         case AUDC_CONFIG_PINNACLE:
 693         {
 694                 int *i = arg;
 695
 696                 t->pinnacle_id = *i;
 697                 tda9887_configure(t);
 698                 break;
 699         }
 700         case TDA9887_SET_CONFIG:
 701         {
 702                 int *i = arg;
 703
 704                 t->config = *i;
 705                 tda9887_configure(t);
 706                 break;
 707         }
 708         /* --- v4l ioctls --- */
 709         /* take care: bttv does userspace copying, we'll get a
 710            kernel pointer here... */
 711         case VIDIOCSCHAN:
 712         {
 713                 static const v4l2_std_id map[] = {
 714                         [ VIDEO_MODE_PAL   ] = V4L2_STD_PAL,
 715                         [ VIDEO_MODE_NTSC  ] = V4L2_STD_NTSC_M,
 716                         [ VIDEO_MODE_SECAM ] = V4L2_STD_SECAM,
 717                         [ 4 /* bttv */     ] = V4L2_STD_PAL_M,
 718                         [ 5 /* bttv */     ] = V4L2_STD_PAL_N,
 719                         [ 6 /* bttv */     ] = V4L2_STD_NTSC_M_JP,
 720                 };
 721                 struct video_channel *vc = arg;
 722
 723                 CHECK_V4L2;
 724                 t->mode = T_ANALOG_TV;
 725                 if (vc->norm < ARRAY_SIZE(map))
 726                         t->std = map[vc->norm];
 727                 tda9887_fixup_std(t);
 728                 tda9887_configure(t);
 729                 break;
 730         }
 731         case VIDIOC_S_STD:
 732         {
 733                 v4l2_std_id *id = arg;
 734
 735                 SWITCH_V4L2;
 736                 t->mode = T_ANALOG_TV;
 737                 t->std   = *id;
 738                 tda9887_fixup_std(t);
 739                 tda9887_configure(t);
 740                 break;
 741         }
 742         case VIDIOC_S_FREQUENCY:
 743         {
 744                 struct v4l2_frequency *f = arg;
 745
 746                 SWITCH_V4L2;
 747                 if (V4L2_TUNER_ANALOG_TV == f->type) {
 748                         if (t->mode == T_ANALOG_TV)
 749                                 return 0;
 750                         t->mode = T_ANALOG_TV;
 751                 }
 752                 if (V4L2_TUNER_RADIO == f->type) {
 753                         if (t->mode == T_RADIO)
 754                                 return 0;
 755                         t->mode = T_RADIO;
 756                 }
 757                 tda9887_configure(t);
 758                 break;
 759         }
 760         case VIDIOC_G_TUNER:
 761         {
 762                 static int AFC_BITS_2_kHz[] = {
 763                         -12500,  -37500,  -62500,  -97500,
 764                         -112500, -137500, -162500, -187500,
 765                         187500,  162500,  137500,  112500,
 766                         97500 ,  62500,   37500 ,  12500
 767                 };
 768                 struct v4l2_tuner* tuner = arg;
 769
 770                 if (t->mode == T_RADIO) {
 771                         __u8 reg = 0;
 772                         tuner->afc=0;
 773                         if (1 == i2c_master_recv(&t->client,&reg,1))
 774                                 tuner->afc = AFC_BITS_2_kHz[(reg>>1)&0x0f];
 775                 }
 776                 break;
 777         }
 778         case VIDIOC_S_TUNER:
 779         {
 780                 struct v4l2_tuner* tuner = arg;
 781
 782                 if (t->mode == T_RADIO) {
 783                         t->radio_mode = tuner->audmode;
 784                         tda9887_configure (t);
 785                 }
 786                 break;
 787         }
 788         case VIDIOC_LOG_STATUS:
 789         {
 790                 tda9887_info("Data bytes: b=%02x c=%02x e=%02x\n", t->data[1], t->data[2], t->data[3]);
 791                 break;
 792         }
 793         default:
 794                 /* nothing */
 795                 break;
 796         }
 797         return 0;
 798 }
 799
 800 static int tda9887_suspend(struct device * dev, pm_message_t state)
 801 {
 802         struct i2c_client *c = container_of(dev, struct i2c_client, dev);
 803         struct tda9887 *t = i2c_get_clientdata(c);
 804
 805         tda9887_dbg("suspend\n");
 806         return 0;
 807 }
 808
 809 static int tda9887_resume(struct device * dev)
 810 {
 811         struct i2c_client *c = container_of(dev, struct i2c_client, dev);
 812         struct tda9887 *t = i2c_get_clientdata(c);
 813
 814         tda9887_dbg("resume\n");
 815         tda9887_configure(t);
 816         return 0;
 817 }
 818
 819 /* ----------------------------------------------------------------------- */
 820
 821 static struct i2c_driver driver = {
 822         .owner          = THIS_MODULE,
 823         .name           = "i2c tda9887 driver",
 824         .id             = -1, /* FIXME */
 825         .flags          = I2C_DF_NOTIFY,
 826         .attach_adapter = tda9887_probe,
 827         .detach_client  = tda9887_detach,
 828         .command        = tda9887_command,
 829         .driver = {
 830                 .suspend = tda9887_suspend,
 831                 .resume  = tda9887_resume,
 832         },
 833 };
 834 static struct i2c_client client_template =
 835 {
 836         .name      = "tda9887",
 837         .flags     = I2C_CLIENT_ALLOW_USE,
 838         .driver    = &driver,
 839 };
 840
 841 static int __init tda9887_init_module(void)
 842 {
 843         return i2c_add_driver(&driver);
 844 }
 845
 846 static void __exit tda9887_cleanup_module(void)
 847 {
 848         i2c_del_driver(&driver);
 849 }
 850
 851 module_init(tda9887_init_module);
 852 module_exit(tda9887_cleanup_module);
 853
 854 /*
 855  * Overrides for Emacs so that we follow Linus's tabbing style.
 856  * ---------------------------------------------------------------------------
 857  * Local variables:
 858  * c-basic-offset: 8
 859  * End:
 860  */