drivers/media/video/tda9887.c

   1 #include <linux/module.h>
   2 #include <linux/kernel.h>
   3 #include <linux/i2c.h>
   4 #include <linux/types.h>
   5 #include <linux/videodev.h>
   6 #include <linux/init.h>
   7 #include <linux/errno.h>
   8 #include <linux/slab.h>
   9
  10 #include <media/audiochip.h>
  11 #include <media/id.h>
  12
  13 /* Chips:
  14    TDA9885 (PAL, NTSC)
  15    TDA9886 (PAL, SECAM, NTSC)
  16    TDA9887 (PAL, SECAM, NTSC, FM Radio)
  17
  18    found on:
  19    - Pinnacle PCTV (Jul.2002 Version with MT2032, bttv)
  20       TDA9887 (world), TDA9885 (USA)
  21       Note: OP2 of tda988x must be set to 1, else MT2032 is disabled!
  22    - KNC One TV-Station RDS (saa7134)
  23 */
  24
  25
  26 /* Addresses to scan */
  27 static unsigned short normal_i2c[] = {
  28         0x86 >>1,
  29         0x96 >>1,
  30         I2C_CLIENT_END,
  31 };
  32 static unsigned short normal_i2c_range[] = {I2C_CLIENT_END,I2C_CLIENT_END};
  33 I2C_CLIENT_INSMOD;
  34
  35 /* insmod options */
  36 static unsigned int debug = 0;
  37 MODULE_PARM(debug,"i");
  38 MODULE_LICENSE("GPL");
  39
  40 /* ---------------------------------------------------------------------- */
  41
  42 #define UNSET       (-1U)
  43 #define PREFIX      "tda9885/6/7: "
  44 #define dprintk     if (debug) printk
  45
  46 struct tda9887 {
  47         struct i2c_client  client;
  48         v4l2_std_id        std;
  49         unsigned int       radio;
  50         unsigned int       pinnacle_id;
  51         unsigned int       using_v4l2;
  52 };
  53
  54 struct tvnorm {
  55         v4l2_std_id       std;
  56         char              *name;
  57         unsigned char     b;
  58         unsigned char     c;
  59         unsigned char     e;
  60 };
  61
  62 static struct i2c_driver driver;
  63 static struct i2c_client client_template;
  64
  65 /* ---------------------------------------------------------------------- */
  66
  67 //
  68 // TDA defines
  69 //
  70
  71 //// first reg (b)
  72 #define cVideoTrapBypassOFF     0x00    // bit b0
  73 #define cVideoTrapBypassON      0x01    // bit b0
  74
  75 #define cAutoMuteFmInactive     0x00    // bit b1
  76 #define cAutoMuteFmActive       0x02    // bit b1
  77
  78 #define cIntercarrier           0x00    // bit b2
  79 #define cQSS                    0x04    // bit b2
  80
  81 #define cPositiveAmTV           0x00    // bit b3:4
  82 #define cFmRadio                0x08    // bit b3:4
  83 #define cNegativeFmTV           0x10    // bit b3:4
  84
  85
  86 #define cForcedMuteAudioON      0x20    // bit b5
  87 #define cForcedMuteAudioOFF     0x00    // bit b5
  88
  89 #define cOutputPort1Active      0x00    // bit b6
  90 #define cOutputPort1Inactive    0x40    // bit b6
  91
  92 #define cOutputPort2Active      0x00    // bit b7
  93 #define cOutputPort2Inactive    0x80    // bit b7
  94
  95
  96 //// second reg (c)
  97 #define cDeemphasisOFF          0x00    // bit c5
  98 #define cDeemphasisON           0x20    // bit c5
  99
 100 #define cDeemphasis75           0x00    // bit c6
 101 #define cDeemphasis50           0x40    // bit c6
 102
 103 #define cAudioGain0             0x00    // bit c7
 104 #define cAudioGain6             0x80    // bit c7
 105
 106
 107 //// third reg (e)
 108 #define cAudioIF_4_5             0x00    // bit e0:1
 109 #define cAudioIF_5_5             0x01    // bit e0:1
 110 #define cAudioIF_6_0             0x02    // bit e0:1
 111 #define cAudioIF_6_5             0x03    // bit e0:1
 112
 113
 114 #define cVideoIF_58_75           0x00    // bit e2:4
 115 #define cVideoIF_45_75           0x04    // bit e2:4
 116 #define cVideoIF_38_90           0x08    // bit e2:4
 117 #define cVideoIF_38_00           0x0C    // bit e2:4
 118 #define cVideoIF_33_90           0x10    // bit e2:4
 119 #define cVideoIF_33_40           0x14    // bit e2:4
 120 #define cRadioIF_45_75           0x18    // bit e2:4
 121 #define cRadioIF_38_90           0x1C    // bit e2:4
 122
 123
 124 #define cTunerGainNormal         0x00    // bit e5
 125 #define cTunerGainLow            0x20    // bit e5
 126
 127 #define cGating_18               0x00    // bit e6
 128 #define cGating_36               0x40    // bit e6
 129
 130 #define cAgcOutON                0x80    // bit e7
 131 #define cAgcOutOFF               0x00    // bit e7
 132
 133 /* ---------------------------------------------------------------------- */
 134
 135 static struct tvnorm tvnorms[] = {
 136         {
 137                 .std   = V4L2_STD_PAL_BG,
 138                 .name  = "PAL-BG",
 139                 .b     = ( cNegativeFmTV  |
 140                            cQSS           ),
 141                 .c     = ( cDeemphasisON  |
 142                            cDeemphasis50  ),
 143                 .e     = ( cAudioIF_5_5   |
 144                            cVideoIF_38_90 ),
 145         },{
 146                 .std   = V4L2_STD_PAL_I,
 147                 .name  = "PAL-I",
 148                 .b     = ( cNegativeFmTV  |
 149                            cQSS           ),
 150                 .c     = ( cDeemphasisON  |
 151                            cDeemphasis50  ),
 152                 .e     = ( cAudioIF_6_0   |
 153                            cVideoIF_38_90 ),
 154         },{
 155                 .std   = V4L2_STD_PAL_DK,
 156                 .name  = "PAL-DK",
 157                 .b     = ( cNegativeFmTV  |
 158                            cQSS           ),
 159                 .c     = ( cDeemphasisON  |
 160                            cDeemphasis50  ),
 161                 .e     = ( cAudioIF_6_5   |
 162                            cVideoIF_38_00 ),
 163         },{
 164                 .std   = V4L2_STD_PAL_M | V4L2_STD_PAL_N,
 165                 .name  = "PAL-M/N",
 166                 .b     = ( cNegativeFmTV  |
 167                            cQSS           ),
 168                 .c     = ( cDeemphasisON  |
 169                            cDeemphasis75  ),
 170                 .e     = ( cAudioIF_4_5   |
 171                            cVideoIF_45_75 ),
 172         },{
 173                 .std   = V4L2_STD_SECAM_L,
 174                 .name  = "SECAM-L",
 175                 .b     = ( cPositiveAmTV  |
 176                            cQSS           ),
 177                 .e     = ( cAudioIF_6_5   |
 178                            cVideoIF_38_90 ),
 179         },{
 180                 .std   = V4L2_STD_SECAM_DK,
 181                 .name  = "SECAM-DK",
 182                 .b     = ( cNegativeFmTV  |
 183                            cQSS           ),
 184                 .c     = ( cDeemphasisON  |
 185                            cDeemphasis50  ),
 186                 .e     = ( cAudioIF_6_5   |
 187                            cVideoIF_38_00 ),
 188         },{
 189                 .std   = V4L2_STD_NTSC_M,
 190                 .name  = "NTSC-M",
 191                 .b     = ( cNegativeFmTV  |
 192                            cQSS           ),
 193                 .c     = ( cDeemphasisON  |
 194                            cDeemphasis50  ),
 195                 .e     = ( cGating_36     |
 196                            cAudioIF_4_5   |
 197                            cVideoIF_45_75 ),
 198         },{
 199                 .std   = V4L2_STD_NTSC_M_JP,
 200                 .name  = "NTSC-JP",
 201                 .b     = ( cNegativeFmTV  |
 202                            cQSS           ),
 203                 .c     = ( cDeemphasisON  |
 204                            cDeemphasis50  ),
 205                 .e     = ( cGating_36     |
 206                            cAudioIF_4_5   |
 207                            cVideoIF_58_75 ),
 208         }
 209 };
 210
 211 static struct tvnorm radio = {
 212         .name = "radio",
 213         .b    = ( cFmRadio       |
 214                   cQSS           ),
 215         .c    = ( cDeemphasisON  |
 216                   cDeemphasis50  ),
 217         .e    = ( cAudioIF_5_5   |
 218                   cRadioIF_38_90 ),
 219 };
 220
 221 /* ---------------------------------------------------------------------- */
 222
 223 static void dump_read_message(unsigned char *buf)
 224 {
 225         static char *afc[16] = {
 226                 "- 12.5 kHz",
 227                 "- 37.5 kHz",
 228                 "- 62.5 kHz",
 229                 "- 87.5 kHz",
 230                 "-112.5 kHz",
 231                 "-137.5 kHz",
 232                 "-162.5 kHz",
 233                 "-187.5 kHz [min]",
 234                 "+187.5 kHz [max]",
 235                 "+162.5 kHz",
 236                 "+137.5 kHz",
 237                 "+112.5 kHz",
 238                 "+ 87.5 kHz",
 239                 "+ 62.5 kHz",
 240                 "+ 37.5 kHz",
 241                 "+ 12.5 kHz",
 242         };
 243         printk(PREFIX "read: 0x%2x\n", buf[0]);
 244         printk("  after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
 245         printk("  afc            : %s\n", afc[(buf[0] >> 1) & 0x0f]);
 246         printk("  afc window     : %s\n", (buf[0] & 0x40) ? "in" : "out");
 247         printk("  vfi level      : %s\n", (buf[0] & 0x80) ? "high" : "low");
 248 }
 249
 250 static void dump_write_message(unsigned char *buf)
 251 {
 252         static char *sound[4] = {
 253                 "AM/TV",
 254                 "FM/radio",
 255                 "FM/TV",
 256                 "FM/radio"
 257         };
 258         static char *adjust[32] = {
 259                 "-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
 260                 "-8",  "-7",  "-6",  "-5",  "-4",  "-3",  "-2",  "-1",
 261                 "0",   "+1",  "+2",  "+3",  "+4",  "+5",  "+6",  "+7",
 262                 "+8",  "+9",  "+10", "+11", "+12", "+13", "+14", "+15"
 263         };
 264         static char *deemph[4] = {
 265                 "no", "no", "75", "50"
 266         };
 267         static char *carrier[4] = {
 268                 "4.5 MHz",
 269                 "5.5 MHz",
 270                 "6.0 MHz",
 271                 "6.5 MHz / AM"
 272         };
 273         static char *vif[8] = {
 274                 "58.75 MHz",
 275                 "45.75 MHz",
 276                 "38.9 MHz",
 277                 "38.0 MHz",
 278                 "33.9 MHz",
 279                 "33.4 MHz",
 280                 "45.75 MHz + pin13",
 281                 "38.9 MHz + pin13",
 282         };
 283         static char *rif[4] = {
 284                 "44 MHz",
 285                 "52 MHz",
 286                 "52 MHz",
 287                 "44 MHz",
 288         };
 289
 290         printk(PREFIX "write: byte B 0x%02x\n",buf[1]);
 291         printk("  B0   video mode      : %s\n",
 292                (buf[1] & 0x01) ? "video trap" : "sound trap");
 293         printk("  B1   auto mute fm    : %s\n",
 294                (buf[1] & 0x02) ? "yes" : "no");
 295         printk("  B2   carrier mode    : %s\n",
 296                (buf[1] & 0x04) ? "QSS" : "Intercarrier");
 297         printk("  B3-4 tv sound/radio  : %s\n",
 298                sound[(buf[1] & 0x18) >> 3]);
 299         printk("  B5   force mute audio: %s\n",
 300                (buf[1] & 0x20) ? "yes" : "no");
 301         printk("  B6   output port 1   : %s\n",
 302                (buf[1] & 0x40) ? "high" : "low");
 303         printk("  B7   output port 2   : %s\n",
 304                (buf[1] & 0x80) ? "high" : "low");
 305
 306         printk(PREFIX "write: byte C 0x%02x\n",buf[2]);
 307         printk("  C0-4 top adjustment  : %s dB\n", adjust[buf[2] & 0x1f]);
 308         printk("  C5-6 de-emphasis     : %s\n", deemph[(buf[2] & 0x60) >> 5]);
 309         printk("  C7   audio gain      : %s\n",
 310                (buf[2] & 0x80) ? "-6" : "0");
 311
 312         printk(PREFIX "write: byte E 0x%02x\n",buf[3]);
 313         printk("  E0-1 sound carrier   : %s\n",
 314                carrier[(buf[3] & 0x03)]);
 315         printk("  E6   l pll ganting   : %s\n",
 316                (buf[3] & 0x40) ? "36" : "13");
 317
 318         if (buf[1] & 0x08) {
 319                 /* radio */
 320                 printk("  E2-4 video if        : %s\n",
 321                        rif[(buf[3] & 0x0c) >> 2]);
 322                 printk("  E7   vif agc output  : %s\n",
 323                        (buf[3] & 0x80)
 324                        ? ((buf[3] & 0x10) ? "fm-agc radio" : "sif-agc radio")
 325                        : "fm radio carrier afc");
 326         } else {
 327                 /* video */
 328                 printk("  E2-4 video if        : %s\n",
 329                        vif[(buf[3] & 0x1c) >> 2]);
 330                 printk("  E5   tuner gain      : %s\n",
 331                        (buf[3] & 0x80)
 332                        ? ((buf[3] & 0x20) ? "external" : "normal")
 333                        : ((buf[3] & 0x20) ? "minimum"  : "normal"));
 334                 printk("  E7   vif agc output  : %s\n",
 335                        (buf[3] & 0x80)
 336                        ? ((buf[3] & 0x20)
 337                           ? "pin3 port, pin22 vif agc out"
 338                           : "pin22 port, pin3 vif acg ext in")
 339                        : "pin3+pin22 port");
 340         }
 341         printk("--\n");
 342 }
 343
 344 /* ---------------------------------------------------------------------- */
 345
 346 static int tda9887_set_tvnorm(struct tda9887 *t, char *buf)
 347 {
 348         struct tvnorm *norm = NULL;
 349         int i;
 350
 351         if (t->radio) {
 352                 norm = &radio;
 353         } else {
 354                 for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
 355                         if (tvnorms[i].std & t->std) {
 356                                 norm = tvnorms+i;
 357                                 break;
 358                         }
 359                 }
 360         }
 361         if (NULL == norm) {
 362                 dprintk(PREFIX "Oops: no tvnorm entry found\n");
 363                 return -1;
 364         }
 365
 366         dprintk(PREFIX "configure for: %s\n",norm->name);
 367         buf[1] = norm->b;
 368         buf[2] = norm->c;
 369         buf[3] = norm->e;
 370         return 0;
 371 }
 372
 373 static unsigned int port1  = 1;
 374 static unsigned int port2  = 1;
 375 static unsigned int qss    = UNSET;
 376 static unsigned int adjust = 0x10;
 377 MODULE_PARM(port1,"i");
 378 MODULE_PARM(port2,"i");
 379 MODULE_PARM(qss,"i");
 380 MODULE_PARM(adjust,"i");
 381
 382 static int tda9887_set_insmod(struct tda9887 *t, char *buf)
 383 {
 384         if (port1)
 385                 buf[1] |= cOutputPort1Inactive;
 386         if (port2)
 387                 buf[1] |= cOutputPort2Inactive;
 388         if (UNSET != qss) {
 389                 if (qss)
 390                         buf[1] |= cQSS;
 391                 else
 392                         buf[1] &= ~cQSS;
 393         }
 394
 395         if (adjust >= 0x00 && adjust < 0x20)
 396                 buf[2] |= adjust;
 397         return 0;
 398 }
 399
 400 /* ---------------------------------------------------------------------- */
 401
 402 static int tda9887_set_pinnacle(struct tda9887 *t, char *buf)
 403 {
 404         unsigned int bCarrierMode = UNSET;
 405
 406         if (t->std & V4L2_STD_PAL) {
 407                 if ((1 == t->pinnacle_id) || (7 == t->pinnacle_id)) {
 408                         bCarrierMode = cIntercarrier;
 409                 } else {
 410                         bCarrierMode = cQSS;
 411                 }
 412         }
 413         if (t->std & V4L2_STD_NTSC) {
 414                 if ((5 == t->pinnacle_id) || (6 == t->pinnacle_id)) {
 415                         bCarrierMode = cIntercarrier;
 416                 } else {
 417                         bCarrierMode = cQSS;
 418                 }
 419         }
 420
 421         if (bCarrierMode != UNSET) {
 422                 buf[1] &= ~0x04;
 423                 buf[1] |= bCarrierMode;
 424         }
 425         return 0;
 426 }
 427
 428 /* ---------------------------------------------------------------------- */
 429
 430 static char *pal = "-";
 431 MODULE_PARM(pal,"s");
 432 static char *secam = "-";
 433 MODULE_PARM(secam,"s");
 434
 435 static int tda9887_fixup_std(struct tda9887 *t)
 436 {
 437         /* get more precise norm info from insmod option */
 438         if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
 439                 switch (pal[0]) {
 440                 case 'b':
 441                 case 'B':
 442                 case 'g':
 443                 case 'G':
 444                         dprintk(PREFIX "insmod fixup: PAL => PAL-BG\n");
 445                         t->std = V4L2_STD_PAL_BG;
 446                         break;
 447                 case 'i':
 448                 case 'I':
 449                         dprintk(PREFIX "insmod fixup: PAL => PAL-I\n");
 450                         t->std = V4L2_STD_PAL_I;
 451                         break;
 452                 case 'd':
 453                 case 'D':
 454                 case 'k':
 455                 case 'K':
 456                         dprintk(PREFIX "insmod fixup: PAL => PAL-DK\n");
 457                         t->std = V4L2_STD_PAL_DK;
 458                         break;
 459                 }
 460         }
 461         if ((t->std & V4L2_STD_SECAM) == V4L2_STD_SECAM) {
 462                 switch (secam[0]) {
 463                 case 'd':
 464                 case 'D':
 465                 case 'k':
 466                 case 'K':
 467                         dprintk(PREFIX "insmod fixup: SECAM => SECAM-DK\n");
 468                         t->std = V4L2_STD_SECAM_DK;
 469                         break;
 470                 case 'l':
 471                 case 'L':
 472                         dprintk(PREFIX "insmod fixup: SECAM => SECAM-L\n");
 473                         t->std = V4L2_STD_SECAM_L;
 474                         break;
 475                 }
 476         }
 477         return 0;
 478 }
 479
 480 static int tda9887_status(struct tda9887 *t)
 481 {
 482         unsigned char buf[1];
 483         int rc;
 484
 485         memset(buf,0,sizeof(buf));
 486         if (1 != (rc = i2c_master_recv(&t->client,buf,1)))
 487                 printk(PREFIX "i2c i/o error: rc == %d (should be 1)\n",rc);
 488         dump_read_message(buf);
 489         return 0;
 490 }
 491
 492 static int tda9887_configure(struct tda9887 *t)
 493 {
 494         unsigned char buf[4];
 495         int rc;
 496
 497         memset(buf,0,sizeof(buf));
 498         tda9887_set_tvnorm(t,buf);
 499         if (UNSET != t->pinnacle_id) {
 500                 tda9887_set_pinnacle(t,buf);
 501         }
 502         tda9887_set_insmod(t,buf);
 503
 504         dprintk(PREFIX "writing: b=0x%02x c=0x%02x e=0x%02x\n",
 505                 buf[1],buf[2],buf[3]);
 506         if (debug > 1)
 507                 dump_write_message(buf);
 508
 509         if (4 != (rc = i2c_master_send(&t->client,buf,4)))
 510                 printk(PREFIX "i2c i/o error: rc == %d (should be 4)\n",rc);
 511
 512         if (debug > 2) {
 513                 set_current_state(TASK_INTERRUPTIBLE);
 514                 schedule_timeout(HZ);
 515                 tda9887_status(t);
 516         }
 517         return 0;
 518 }
 519
 520 /* ---------------------------------------------------------------------- */
 521
 522 static int tda9887_attach(struct i2c_adapter *adap, int addr, int kind)
 523 {
 524         struct tda9887 *t;
 525
 526         client_template.adapter = adap;
 527         client_template.addr    = addr;
 528
 529         printk(PREFIX "chip found @ 0x%x\n", addr<<1);
 530
 531         if (NULL == (t = kmalloc(sizeof(*t), GFP_KERNEL)))
 532                 return -ENOMEM;
 533         memset(t,0,sizeof(*t));
 534         t->client      = client_template;
 535         t->std         = 0;;
 536         t->pinnacle_id = UNSET;
 537         i2c_set_clientdata(&t->client, t);
 538         i2c_attach_client(&t->client);
 539
 540         return 0;
 541 }
 542
 543 static int tda9887_probe(struct i2c_adapter *adap)
 544 {
 545 #ifdef I2C_CLASS_TV_ANALOG
 546         if (adap->class & I2C_CLASS_TV_ANALOG)
 547                 return i2c_probe(adap, &addr_data, tda9887_attach);
 548 #else
 549         switch (adap->id) {
 550         case I2C_ALGO_BIT | I2C_HW_B_BT848:
 551         case I2C_ALGO_BIT | I2C_HW_B_RIVA:
 552         case I2C_ALGO_SAA7134:
 553                 return i2c_probe(adap, &addr_data, tda9887_attach);
 554                 break;
 555         }
 556 #endif
 557         return 0;
 558 }
 559
 560 static int tda9887_detach(struct i2c_client *client)
 561 {
 562         struct tda9887 *t = i2c_get_clientdata(client);
 563
 564         i2c_detach_client(client);
 565         kfree(t);
 566         return 0;
 567 }
 568
 569 #define SWITCH_V4L2     if (!t->using_v4l2 && debug) \
 570                           printk(PREFIX "switching to v4l2\n"); \
 571                           t->using_v4l2 = 1;
 572 #define CHECK_V4L2      if (t->using_v4l2) { if (debug) \
 573                           printk(PREFIX "ignore v4l1 call\n"); \
 574                           return 0; }
 575
 576 static int
 577 tda9887_command(struct i2c_client *client, unsigned int cmd, void *arg)
 578 {
 579         struct tda9887 *t = i2c_get_clientdata(client);
 580
 581         switch (cmd) {
 582
 583         /* --- configuration --- */
 584         case AUDC_SET_RADIO:
 585                 t->radio = 1;
 586                 tda9887_configure(t);
 587                 break;
 588
 589         case AUDC_CONFIG_PINNACLE:
 590         {
 591                 int *i = arg;
 592
 593                 t->pinnacle_id = *i;
 594                 tda9887_configure(t);
 595                 break;
 596         }
 597         /* --- v4l ioctls --- */
 598         /* take care: bttv does userspace copying, we'll get a
 599            kernel pointer here... */
 600         case VIDIOCSCHAN:
 601         {
 602                 static const v4l2_std_id map[] = {
 603                         [ VIDEO_MODE_PAL   ] = V4L2_STD_PAL,
 604                         [ VIDEO_MODE_NTSC  ] = V4L2_STD_NTSC_M,
 605                         [ VIDEO_MODE_SECAM ] = V4L2_STD_SECAM,
 606                         [ 4 /* bttv */     ] = V4L2_STD_PAL_M,
 607                         [ 5 /* bttv */     ] = V4L2_STD_PAL_N,
 608                         [ 6 /* bttv */     ] = V4L2_STD_NTSC_M_JP,
 609                 };
 610                 struct video_channel *vc = arg;
 611
 612                 CHECK_V4L2;
 613                 t->radio = 0;
 614                 if (vc->norm < ARRAY_SIZE(map))
 615                         t->std = map[vc->norm];
 616                 tda9887_fixup_std(t);
 617                 tda9887_configure(t);
 618                 break;
 619         }
 620         case VIDIOC_S_STD:
 621         {
 622                 v4l2_std_id *id = arg;
 623
 624                 SWITCH_V4L2;
 625                 t->radio = 0;
 626                 t->std   = *id;
 627                 tda9887_fixup_std(t);
 628                 tda9887_configure(t);
 629                 break;
 630         }
 631         case VIDIOC_S_FREQUENCY:
 632         {
 633                 struct v4l2_frequency *f = arg;
 634
 635                 SWITCH_V4L2;
 636                 if (V4L2_TUNER_ANALOG_TV == f->type) {
 637                         if (t->radio == 0)
 638                                 return 0;
 639                         t->radio = 0;
 640                 }
 641                 if (V4L2_TUNER_RADIO == f->type) {
 642                         if (t->radio == 1)
 643                                 return 0;
 644                         t->radio = 1;
 645                 }
 646                 tda9887_configure(t);
 647         }
 648         default:
 649                 /* nothing */
 650                 break;
 651         }
 652         return 0;
 653 }
 654
 655 /* ----------------------------------------------------------------------- */
 656
 657 static struct i2c_driver driver = {
 658         .owner          = THIS_MODULE,
 659         .name           = "i2c tda9887 driver",
 660         .id             = -1, /* FIXME */
 661         .flags          = I2C_DF_NOTIFY,
 662         .attach_adapter = tda9887_probe,
 663         .detach_client  = tda9887_detach,
 664         .command        = tda9887_command,
 665 };
 666 static struct i2c_client client_template =
 667 {
 668         I2C_DEVNAME("tda9887"),
 669         .flags     = I2C_CLIENT_ALLOW_USE,
 670         .driver    = &driver,
 671 };
 672
 673 static int tda9887_init_module(void)
 674 {
 675         i2c_add_driver(&driver);
 676         return 0;
 677 }
 678
 679 static void tda9887_cleanup_module(void)
 680 {
 681         i2c_del_driver(&driver);
 682 }
 683
 684 module_init(tda9887_init_module);
 685 module_exit(tda9887_cleanup_module);
 686
 687 /*
 688  * Overrides for Emacs so that we follow Linus's tabbing style.
 689  * ---------------------------------------------------------------------------
 690  * Local variables:
 691  * c-basic-offset: 8
 692  * End:
 693  */