git.oblomov.eu Git - linux-2.6/blob - drivers/staging/go7007/wis-sony-tuner.c

   1 /*
   2  * Copyright (C) 2005-2006 Micronas USA Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License (Version 2) as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  16  */
  17
  18 #include <linux/module.h>
  19 #include <linux/init.h>
  20 #include <linux/i2c.h>
  21 #include <linux/videodev2.h>
  22 #include <media/tuner.h>
  23 #include <media/v4l2-common.h>
  24 #include <media/v4l2-ioctl.h>
  25
  26 #include "wis-i2c.h"
  27
  28 /* #define MPX_DEBUG */
  29
  30 /* AS(IF/MPX) pin:      LOW      HIGH/OPEN
  31  * IF/MPX address:   0x42/0x40   0x43/0x44
  32  */
  33 #define IF_I2C_ADDR     0x43
  34 #define MPX_I2C_ADDR    0x44
  35
  36 static v4l2_std_id force_band;
  37 static char force_band_str[] = "-";
  38 module_param_string(force_band, force_band_str, sizeof(force_band_str), 0644);
  39 static int force_mpx_mode = -1;
  40 module_param(force_mpx_mode, int, 0644);
  41
  42 /* Store tuner info in the same format as tuner.c, so maybe we can put the
  43  * Sony tuner support in there. */
  44 struct sony_tunertype {
  45         char *name;
  46         unsigned char Vendor; /* unused here */
  47         unsigned char Type; /* unused here */
  48
  49         unsigned short thresh1; /*  band switch VHF_LO <=> VHF_HI */
  50         unsigned short thresh2; /*  band switch VHF_HI <=> UHF */
  51         unsigned char VHF_L;
  52         unsigned char VHF_H;
  53         unsigned char UHF;
  54         unsigned char config;
  55         unsigned short IFPCoff;
  56 };
  57
  58 /* This array is indexed by (tuner_type - 200) */
  59 static struct sony_tunertype sony_tuners[] = {
  60         { "Sony PAL+SECAM (BTF-PG472Z)", 0, 0,
  61           16*144.25, 16*427.25, 0x01, 0x02, 0x04, 0xc6, 623},
  62         { "Sony NTSC_JP (BTF-PK467Z)", 0, 0,
  63           16*220.25, 16*467.25, 0x01, 0x02, 0x04, 0xc6, 940},
  64         { "Sony NTSC (BTF-PB463Z)", 0, 0,
  65           16*130.25, 16*364.25, 0x01, 0x02, 0x04, 0xc6, 732},
  66 };
  67
  68 struct wis_sony_tuner {
  69         int type;
  70         v4l2_std_id std;
  71         unsigned int freq;
  72         int mpxmode;
  73         u32 audmode;
  74 };
  75
  76 /* Basically the same as default_set_tv_freq() in tuner.c */
  77 static int set_freq(struct i2c_client *client, int freq)
  78 {
  79         struct wis_sony_tuner *t = i2c_get_clientdata(client);
  80         char *band_name;
  81         int n;
  82         int band_select;
  83         struct sony_tunertype *tun;
  84         u8 buffer[4];
  85
  86         tun = &sony_tuners[t->type - 200];
  87         if (freq < tun->thresh1) {
  88                 band_name = "VHF_L";
  89                 band_select = tun->VHF_L;
  90         } else if (freq < tun->thresh2) {
  91                 band_name = "VHF_H";
  92                 band_select = tun->VHF_H;
  93         } else {
  94                 band_name = "UHF";
  95                 band_select = tun->UHF;
  96         }
  97         printk(KERN_DEBUG "wis-sony-tuner: tuning to frequency %d.%04d (%s)\n",
  98                         freq / 16, (freq % 16) * 625, band_name);
  99         n = freq + tun->IFPCoff;
 100
 101         buffer[0] = n >> 8;
 102         buffer[1] = n & 0xff;
 103         buffer[2] = tun->config;
 104         buffer[3] = band_select;
 105         i2c_master_send(client, buffer, 4);
 106
 107         return 0;
 108 }
 109
 110 static int mpx_write(struct i2c_client *client, int dev, int addr, int val)
 111 {
 112         u8 buffer[5];
 113         struct i2c_msg msg;
 114
 115         buffer[0] = dev;
 116         buffer[1] = addr >> 8;
 117         buffer[2] = addr & 0xff;
 118         buffer[3] = val >> 8;
 119         buffer[4] = val & 0xff;
 120         msg.addr = MPX_I2C_ADDR;
 121         msg.flags = 0;
 122         msg.len = 5;
 123         msg.buf = buffer;
 124         i2c_transfer(client->adapter, &msg, 1);
 125         return 0;
 126 }
 127
 128 /*
 129  * MPX register values for the BTF-PG472Z:
 130  *
 131  *                                 FM_     NICAM_  SCART_
 132  *          MODUS  SOURCE    ACB   PRESCAL PRESCAL PRESCAL SYSTEM  VOLUME
 133  *         10/0030 12/0008 12/0013 12/000E 12/0010 12/0000 10/0020 12/0000
 134  *         ---------------------------------------------------------------
 135  * Auto     1003    0020    0100    2603    5000    XXXX    0001    7500
 136  *
 137  * B/G
 138  *  Mono    1003    0020    0100    2603    5000    XXXX    0003    7500
 139  *  A2      1003    0020    0100    2601    5000    XXXX    0003    7500
 140  *  NICAM   1003    0120    0100    2603    5000    XXXX    0008    7500
 141  *
 142  * I
 143  *  Mono    1003    0020    0100    2603    7900    XXXX    000A    7500
 144  *  NICAM   1003    0120    0100    2603    7900    XXXX    000A    7500
 145  *
 146  * D/K
 147  *  Mono    1003    0020    0100    2603    5000    XXXX    0004    7500
 148  *  A2-1    1003    0020    0100    2601    5000    XXXX    0004    7500
 149  *  A2-2    1003    0020    0100    2601    5000    XXXX    0005    7500
 150  *  A2-3    1003    0020    0100    2601    5000    XXXX    0007    7500
 151  *  NICAM   1003    0120    0100    2603    5000    XXXX    000B    7500
 152  *
 153  * L/L'
 154  *  Mono    0003    0200    0100    7C03    5000    2200    0009    7500
 155  *  NICAM   0003    0120    0100    7C03    5000    XXXX    0009    7500
 156  *
 157  * M
 158  *  Mono    1003    0200    0100    2B03    5000    2B00    0002    7500
 159  *
 160  * For Asia, replace the 0x26XX in FM_PRESCALE with 0x14XX.
 161  *
 162  * Bilingual selection in A2/NICAM:
 163  *
 164  *         High byte of SOURCE     Left chan   Right chan
 165  *                 0x01              MAIN         SUB
 166  *                 0x03              MAIN         MAIN
 167  *                 0x04              SUB          SUB
 168  *
 169  * Force mono in NICAM by setting the high byte of SOURCE to 0x02 (L/L') or
 170  * 0x00 (all other bands).  Force mono in A2 with FMONO_A2:
 171  *
 172  *                      FMONO_A2
 173  *                      10/0022
 174  *                      --------
 175  *     Forced mono ON     07F0
 176  *     Forced mono OFF    0190
 177  */
 178
 179 static struct {
 180         enum { AUD_MONO, AUD_A2, AUD_NICAM, AUD_NICAM_L } audio_mode;
 181         u16 modus;
 182         u16 source;
 183         u16 acb;
 184         u16 fm_prescale;
 185         u16 nicam_prescale;
 186         u16 scart_prescale;
 187         u16 system;
 188         u16 volume;
 189 } mpx_audio_modes[] = {
 190         /* Auto */      { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
 191                                         0x5000, 0x0000, 0x0001, 0x7500 },
 192         /* B/G Mono */  { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
 193                                         0x5000, 0x0000, 0x0003, 0x7500 },
 194         /* B/G A2 */    { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
 195                                         0x5000, 0x0000, 0x0003, 0x7500 },
 196         /* B/G NICAM */ { AUD_NICAM,    0x1003, 0x0120, 0x0100, 0x2603,
 197                                         0x5000, 0x0000, 0x0008, 0x7500 },
 198         /* I Mono */    { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
 199                                         0x7900, 0x0000, 0x000A, 0x7500 },
 200         /* I NICAM */   { AUD_NICAM,    0x1003, 0x0120, 0x0100, 0x2603,
 201                                         0x7900, 0x0000, 0x000A, 0x7500 },
 202         /* D/K Mono */  { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
 203                                         0x5000, 0x0000, 0x0004, 0x7500 },
 204         /* D/K A2-1 */  { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
 205                                         0x5000, 0x0000, 0x0004, 0x7500 },
 206         /* D/K A2-2 */  { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
 207                                         0x5000, 0x0000, 0x0005, 0x7500 },
 208         /* D/K A2-3 */  { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
 209                                         0x5000, 0x0000, 0x0007, 0x7500 },
 210         /* D/K NICAM */ { AUD_NICAM,    0x1003, 0x0120, 0x0100, 0x2603,
 211                                         0x5000, 0x0000, 0x000B, 0x7500 },
 212         /* L/L' Mono */ { AUD_MONO,     0x0003, 0x0200, 0x0100, 0x7C03,
 213                                         0x5000, 0x2200, 0x0009, 0x7500 },
 214         /* L/L' NICAM */{ AUD_NICAM_L,  0x0003, 0x0120, 0x0100, 0x7C03,
 215                                         0x5000, 0x0000, 0x0009, 0x7500 },
 216 };
 217
 218 #define MPX_NUM_MODES   ARRAY_SIZE(mpx_audio_modes)
 219
 220 static int mpx_setup(struct i2c_client *client)
 221 {
 222         struct wis_sony_tuner *t = i2c_get_clientdata(client);
 223         u16 source = 0;
 224         u8 buffer[3];
 225         struct i2c_msg msg;
 226
 227         /* reset MPX */
 228         buffer[0] = 0x00;
 229         buffer[1] = 0x80;
 230         buffer[2] = 0x00;
 231         msg.addr = MPX_I2C_ADDR;
 232         msg.flags = 0;
 233         msg.len = 3;
 234         msg.buf = buffer;
 235         i2c_transfer(client->adapter, &msg, 1);
 236         buffer[1] = 0x00;
 237         i2c_transfer(client->adapter, &msg, 1);
 238
 239         if (mpx_audio_modes[t->mpxmode].audio_mode != AUD_MONO) {
 240                 switch (t->audmode) {
 241                 case V4L2_TUNER_MODE_MONO:
 242                         switch (mpx_audio_modes[t->mpxmode].audio_mode) {
 243                         case AUD_A2:
 244                                 source = mpx_audio_modes[t->mpxmode].source;
 245                                 break;
 246                         case AUD_NICAM:
 247                                 source = 0x0000;
 248                                 break;
 249                         case AUD_NICAM_L:
 250                                 source = 0x0200;
 251                                 break;
 252                         default:
 253                                 break;
 254                         }
 255                         break;
 256                 case V4L2_TUNER_MODE_STEREO:
 257                         source = mpx_audio_modes[t->mpxmode].source;
 258                         break;
 259                 case V4L2_TUNER_MODE_LANG1:
 260                         source = 0x0300;
 261                         break;
 262                 case V4L2_TUNER_MODE_LANG2:
 263                         source = 0x0400;
 264                         break;
 265                 }
 266                 source |= mpx_audio_modes[t->mpxmode].source & 0x00ff;
 267         } else
 268                 source = mpx_audio_modes[t->mpxmode].source;
 269
 270         mpx_write(client, 0x10, 0x0030, mpx_audio_modes[t->mpxmode].modus);
 271         mpx_write(client, 0x12, 0x0008, source);
 272         mpx_write(client, 0x12, 0x0013, mpx_audio_modes[t->mpxmode].acb);
 273         mpx_write(client, 0x12, 0x000e,
 274                         mpx_audio_modes[t->mpxmode].fm_prescale);
 275         mpx_write(client, 0x12, 0x0010,
 276                         mpx_audio_modes[t->mpxmode].nicam_prescale);
 277         mpx_write(client, 0x12, 0x000d,
 278                         mpx_audio_modes[t->mpxmode].scart_prescale);
 279         mpx_write(client, 0x10, 0x0020, mpx_audio_modes[t->mpxmode].system);
 280         mpx_write(client, 0x12, 0x0000, mpx_audio_modes[t->mpxmode].volume);
 281         if (mpx_audio_modes[t->mpxmode].audio_mode == AUD_A2)
 282                 mpx_write(client, 0x10, 0x0022,
 283                         t->audmode == V4L2_TUNER_MODE_MONO ?  0x07f0 : 0x0190);
 284
 285 #ifdef MPX_DEBUG
 286         {
 287                 u8 buf1[3], buf2[2];
 288                 struct i2c_msg msgs[2];
 289
 290                 printk(KERN_DEBUG "wis-sony-tuner: MPX registers: %04x %04x "
 291                                 "%04x %04x %04x %04x %04x %04x\n",
 292                                 mpx_audio_modes[t->mpxmode].modus,
 293                                 source,
 294                                 mpx_audio_modes[t->mpxmode].acb,
 295                                 mpx_audio_modes[t->mpxmode].fm_prescale,
 296                                 mpx_audio_modes[t->mpxmode].nicam_prescale,
 297                                 mpx_audio_modes[t->mpxmode].scart_prescale,
 298                                 mpx_audio_modes[t->mpxmode].system,
 299                                 mpx_audio_modes[t->mpxmode].volume);
 300                 buf1[0] = 0x11;
 301                 buf1[1] = 0x00;
 302                 buf1[2] = 0x7e;
 303                 msgs[0].addr = MPX_I2C_ADDR;
 304                 msgs[0].flags = 0;
 305                 msgs[0].len = 3;
 306                 msgs[0].buf = buf1;
 307                 msgs[1].addr = MPX_I2C_ADDR;
 308                 msgs[1].flags = I2C_M_RD;
 309                 msgs[1].len = 2;
 310                 msgs[1].buf = buf2;
 311                 i2c_transfer(client->adapter, msgs, 2);
 312                 printk(KERN_DEBUG "wis-sony-tuner: MPX system: %02x%02x\n",
 313                                 buf2[0], buf2[1]);
 314                 buf1[0] = 0x11;
 315                 buf1[1] = 0x02;
 316                 buf1[2] = 0x00;
 317                 i2c_transfer(client->adapter, msgs, 2);
 318                 printk(KERN_DEBUG "wis-sony-tuner: MPX status: %02x%02x\n",
 319                                 buf2[0], buf2[1]);
 320         }
 321 #endif
 322         return 0;
 323 }
 324
 325 /*
 326  * IF configuration values for the BTF-PG472Z:
 327  *
 328  *      B/G: 0x94 0x70 0x49
 329  *      I:   0x14 0x70 0x4a
 330  *      D/K: 0x14 0x70 0x4b
 331  *      L:   0x04 0x70 0x4b
 332  *      L':  0x44 0x70 0x53
 333  *      M:   0x50 0x30 0x4c
 334  */
 335
 336 static int set_if(struct i2c_client *client)
 337 {
 338         struct wis_sony_tuner *t = i2c_get_clientdata(client);
 339         u8 buffer[4];
 340         struct i2c_msg msg;
 341         int default_mpx_mode = 0;
 342
 343         /* configure IF */
 344         buffer[0] = 0;
 345         if (t->std & V4L2_STD_PAL_BG) {
 346                 buffer[1] = 0x94;
 347                 buffer[2] = 0x70;
 348                 buffer[3] = 0x49;
 349                 default_mpx_mode = 1;
 350         } else if (t->std & V4L2_STD_PAL_I) {
 351                 buffer[1] = 0x14;
 352                 buffer[2] = 0x70;
 353                 buffer[3] = 0x4a;
 354                 default_mpx_mode = 4;
 355         } else if (t->std & V4L2_STD_PAL_DK) {
 356                 buffer[1] = 0x14;
 357                 buffer[2] = 0x70;
 358                 buffer[3] = 0x4b;
 359                 default_mpx_mode = 6;
 360         } else if (t->std & V4L2_STD_SECAM_L) {
 361                 buffer[1] = 0x04;
 362                 buffer[2] = 0x70;
 363                 buffer[3] = 0x4b;
 364                 default_mpx_mode = 11;
 365         }
 366         msg.addr = IF_I2C_ADDR;
 367         msg.flags = 0;
 368         msg.len = 4;
 369         msg.buf = buffer;
 370         i2c_transfer(client->adapter, &msg, 1);
 371
 372         /* Select MPX mode if not forced by the user */
 373         if (force_mpx_mode >= 0 || force_mpx_mode < MPX_NUM_MODES)
 374                 t->mpxmode = force_mpx_mode;
 375         else
 376                 t->mpxmode = default_mpx_mode;
 377         printk(KERN_DEBUG "wis-sony-tuner: setting MPX to mode %d\n",
 378                         t->mpxmode);
 379         mpx_setup(client);
 380
 381         return 0;
 382 }
 383
 384 static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 385 {
 386         struct wis_sony_tuner *t = i2c_get_clientdata(client);
 387
 388         switch (cmd) {
 389 #ifdef TUNER_SET_TYPE_ADDR
 390         case TUNER_SET_TYPE_ADDR:
 391         {
 392                 struct tuner_setup *tun_setup = arg;
 393                 int *type = &tun_setup->type;
 394 #else
 395         case TUNER_SET_TYPE:
 396         {
 397                 int *type = arg;
 398 #endif
 399
 400                 if (t->type >= 0) {
 401                         if (t->type != *type)
 402                                 printk(KERN_ERR "wis-sony-tuner: type already "
 403                                         "set to %d, ignoring request for %d\n",
 404                                         t->type, *type);
 405                         break;
 406                 }
 407                 t->type = *type;
 408                 switch (t->type) {
 409                 case TUNER_SONY_BTF_PG472Z:
 410                         switch (force_band_str[0]) {
 411                         case 'b':
 412                         case 'B':
 413                         case 'g':
 414                         case 'G':
 415                                 printk(KERN_INFO "wis-sony-tuner: forcing "
 416                                                 "tuner to PAL-B/G bands\n");
 417                                 force_band = V4L2_STD_PAL_BG;
 418                                 break;
 419                         case 'i':
 420                         case 'I':
 421                                 printk(KERN_INFO "wis-sony-tuner: forcing "
 422                                                 "tuner to PAL-I band\n");
 423                                 force_band = V4L2_STD_PAL_I;
 424                                 break;
 425                         case 'd':
 426                         case 'D':
 427                         case 'k':
 428                         case 'K':
 429                                 printk(KERN_INFO "wis-sony-tuner: forcing "
 430                                                 "tuner to PAL-D/K bands\n");
 431                                 force_band = V4L2_STD_PAL_I;
 432                                 break;
 433                         case 'l':
 434                         case 'L':
 435                                 printk(KERN_INFO "wis-sony-tuner: forcing "
 436                                                 "tuner to SECAM-L band\n");
 437                                 force_band = V4L2_STD_SECAM_L;
 438                                 break;
 439                         default:
 440                                 force_band = 0;
 441                                 break;
 442                         }
 443                         if (force_band)
 444                                 t->std = force_band;
 445                         else
 446                                 t->std = V4L2_STD_PAL_BG;
 447                         set_if(client);
 448                         break;
 449                 case TUNER_SONY_BTF_PK467Z:
 450                         t->std = V4L2_STD_NTSC_M_JP;
 451                         break;
 452                 case TUNER_SONY_BTF_PB463Z:
 453                         t->std = V4L2_STD_NTSC_M;
 454                         break;
 455                 default:
 456                         printk(KERN_ERR "wis-sony-tuner: tuner type %d is not "
 457                                         "supported by this module\n", *type);
 458                         break;
 459                 }
 460                 if (type >= 0)
 461                         printk(KERN_INFO
 462                                 "wis-sony-tuner: type set to %d (%s)\n",
 463                                 t->type, sony_tuners[t->type - 200].name);
 464                 break;
 465         }
 466         case VIDIOC_G_FREQUENCY:
 467         {
 468                 struct v4l2_frequency *f = arg;
 469
 470                 f->frequency = t->freq;
 471                 break;
 472         }
 473         case VIDIOC_S_FREQUENCY:
 474         {
 475                 struct v4l2_frequency *f = arg;
 476
 477                 t->freq = f->frequency;
 478                 set_freq(client, t->freq);
 479                 break;
 480         }
 481         case VIDIOC_ENUMSTD:
 482         {
 483                 struct v4l2_standard *std = arg;
 484
 485                 switch (t->type) {
 486                 case TUNER_SONY_BTF_PG472Z:
 487                         switch (std->index) {
 488                         case 0:
 489                                 v4l2_video_std_construct(std,
 490                                                 V4L2_STD_PAL_BG, "PAL-B/G");
 491                                 break;
 492                         case 1:
 493                                 v4l2_video_std_construct(std,
 494                                                 V4L2_STD_PAL_I, "PAL-I");
 495                                 break;
 496                         case 2:
 497                                 v4l2_video_std_construct(std,
 498                                                 V4L2_STD_PAL_DK, "PAL-D/K");
 499                                 break;
 500                         case 3:
 501                                 v4l2_video_std_construct(std,
 502                                                 V4L2_STD_SECAM_L, "SECAM-L");
 503                                 break;
 504                         default:
 505                                 std->id = 0; /* hack to indicate EINVAL */
 506                                 break;
 507                         }
 508                         break;
 509                 case TUNER_SONY_BTF_PK467Z:
 510                         if (std->index != 0) {
 511                                 std->id = 0; /* hack to indicate EINVAL */
 512                                 break;
 513                         }
 514                         v4l2_video_std_construct(std,
 515                                         V4L2_STD_NTSC_M_JP, "NTSC-J");
 516                         break;
 517                 case TUNER_SONY_BTF_PB463Z:
 518                         if (std->index != 0) {
 519                                 std->id = 0; /* hack to indicate EINVAL */
 520                                 break;
 521                         }
 522                         v4l2_video_std_construct(std, V4L2_STD_NTSC_M, "NTSC");
 523                         break;
 524                 }
 525                 break;
 526         }
 527         case VIDIOC_G_STD:
 528         {
 529                 v4l2_std_id *std = arg;
 530
 531                 *std = t->std;
 532                 break;
 533         }
 534         case VIDIOC_S_STD:
 535         {
 536                 v4l2_std_id *std = arg;
 537                 v4l2_std_id old = t->std;
 538
 539                 switch (t->type) {
 540                 case TUNER_SONY_BTF_PG472Z:
 541                         if (force_band && (*std & force_band) != *std &&
 542                                         *std != V4L2_STD_PAL &&
 543                                         *std != V4L2_STD_SECAM) {
 544                                 printk(KERN_DEBUG "wis-sony-tuner: ignoring "
 545                                                 "requested TV standard in "
 546                                                 "favor of force_band value\n");
 547                                 t->std = force_band;
 548                         } else if (*std & V4L2_STD_PAL_BG) { /* default */
 549                                 t->std = V4L2_STD_PAL_BG;
 550                         } else if (*std & V4L2_STD_PAL_I) {
 551                                 t->std = V4L2_STD_PAL_I;
 552                         } else if (*std & V4L2_STD_PAL_DK) {
 553                                 t->std = V4L2_STD_PAL_DK;
 554                         } else if (*std & V4L2_STD_SECAM_L) {
 555                                 t->std = V4L2_STD_SECAM_L;
 556                         } else {
 557                                 printk(KERN_ERR "wis-sony-tuner: TV standard "
 558                                                 "not supported\n");
 559                                 *std = 0; /* hack to indicate EINVAL */
 560                                 break;
 561                         }
 562                         if (old != t->std)
 563                                 set_if(client);
 564                         break;
 565                 case TUNER_SONY_BTF_PK467Z:
 566                         if (!(*std & V4L2_STD_NTSC_M_JP)) {
 567                                 printk(KERN_ERR "wis-sony-tuner: TV standard "
 568                                                 "not supported\n");
 569                                 *std = 0; /* hack to indicate EINVAL */
 570                         }
 571                         break;
 572                 case TUNER_SONY_BTF_PB463Z:
 573                         if (!(*std & V4L2_STD_NTSC_M)) {
 574                                 printk(KERN_ERR "wis-sony-tuner: TV standard "
 575                                                 "not supported\n");
 576                                 *std = 0; /* hack to indicate EINVAL */
 577                         }
 578                         break;
 579                 }
 580                 break;
 581         }
 582         case VIDIOC_QUERYSTD:
 583         {
 584                 v4l2_std_id *std = arg;
 585
 586                 switch (t->type) {
 587                 case TUNER_SONY_BTF_PG472Z:
 588                         if (force_band)
 589                                 *std = force_band;
 590                         else
 591                                 *std = V4L2_STD_PAL_BG | V4L2_STD_PAL_I |
 592                                         V4L2_STD_PAL_DK | V4L2_STD_SECAM_L;
 593                         break;
 594                 case TUNER_SONY_BTF_PK467Z:
 595                         *std = V4L2_STD_NTSC_M_JP;
 596                         break;
 597                 case TUNER_SONY_BTF_PB463Z:
 598                         *std = V4L2_STD_NTSC_M;
 599                         break;
 600                 }
 601                 break;
 602         }
 603         case VIDIOC_G_TUNER:
 604         {
 605                 struct v4l2_tuner *tun = arg;
 606
 607                 memset(tun, 0, sizeof(*tun));
 608                 strcpy(tun->name, "Television");
 609                 tun->type = V4L2_TUNER_ANALOG_TV;
 610                 tun->rangelow = 0UL; /* does anything use these? */
 611                 tun->rangehigh = 0xffffffffUL;
 612                 switch (t->type) {
 613                 case TUNER_SONY_BTF_PG472Z:
 614                         tun->capability = V4L2_TUNER_CAP_NORM |
 615                                 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
 616                                 V4L2_TUNER_CAP_LANG2;
 617                         tun->rxsubchans = V4L2_TUNER_SUB_MONO |
 618                                 V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_LANG1 |
 619                                 V4L2_TUNER_SUB_LANG2;
 620                         break;
 621                 case TUNER_SONY_BTF_PK467Z:
 622                 case TUNER_SONY_BTF_PB463Z:
 623                         tun->capability = V4L2_TUNER_CAP_STEREO;
 624                         tun->rxsubchans = V4L2_TUNER_SUB_MONO |
 625                                                 V4L2_TUNER_SUB_STEREO;
 626                         break;
 627                 }
 628                 tun->audmode = t->audmode;
 629                 return 0;
 630         }
 631         case VIDIOC_S_TUNER:
 632         {
 633                 struct v4l2_tuner *tun = arg;
 634
 635                 switch (t->type) {
 636                 case TUNER_SONY_BTF_PG472Z:
 637                         if (tun->audmode != t->audmode) {
 638                                 t->audmode = tun->audmode;
 639                                 mpx_setup(client);
 640                         }
 641                         break;
 642                 case TUNER_SONY_BTF_PK467Z:
 643                 case TUNER_SONY_BTF_PB463Z:
 644                         break;
 645                 }
 646                 return 0;
 647         }
 648         default:
 649                 break;
 650         }
 651         return 0;
 652 }
 653
 654 static struct i2c_driver wis_sony_tuner_driver;
 655
 656 static struct i2c_client wis_sony_tuner_client_templ = {
 657         .name           = "Sony TV Tuner (WIS)",
 658         .driver         = &wis_sony_tuner_driver,
 659 };
 660
 661 static int wis_sony_tuner_detect(struct i2c_adapter *adapter,
 662                                         int addr, int kind)
 663 {
 664         struct i2c_client *client;
 665         struct wis_sony_tuner *t;
 666
 667         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
 668                 return 0;
 669
 670         client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
 671         if (client == NULL)
 672                 return -ENOMEM;
 673         memcpy(client, &wis_sony_tuner_client_templ,
 674                         sizeof(wis_sony_tuner_client_templ));
 675         client->adapter = adapter;
 676         client->addr = addr;
 677
 678         t = kmalloc(sizeof(struct wis_sony_tuner), GFP_KERNEL);
 679         if (t == NULL) {
 680                 kfree(client);
 681                 return -ENOMEM;
 682         }
 683         t->type = -1;
 684         t->freq = 0;
 685         t->mpxmode = 0;
 686         t->audmode = V4L2_TUNER_MODE_STEREO;
 687         i2c_set_clientdata(client, t);
 688
 689         printk(KERN_DEBUG
 690                 "wis-sony-tuner: initializing tuner at address %d on %s\n",
 691                 addr, adapter->name);
 692
 693         i2c_attach_client(client);
 694
 695         return 0;
 696 }
 697
 698 static int wis_sony_tuner_detach(struct i2c_client *client)
 699 {
 700         struct wis_sony_tuner *t = i2c_get_clientdata(client);
 701         int r;
 702
 703         r = i2c_detach_client(client);
 704         if (r < 0)
 705                 return r;
 706
 707         kfree(t);
 708         kfree(client);
 709         return 0;
 710 }
 711
 712 static struct i2c_driver wis_sony_tuner_driver = {
 713         .driver = {
 714                 .name   = "WIS Sony TV Tuner I2C driver",
 715         },
 716         .id             = I2C_DRIVERID_WIS_SONY_TUNER,
 717         .detach_client  = wis_sony_tuner_detach,
 718         .command        = tuner_command,
 719 };
 720
 721 static int __init wis_sony_tuner_init(void)
 722 {
 723         int r;
 724
 725         r = i2c_add_driver(&wis_sony_tuner_driver);
 726         if (r < 0)
 727                 return r;
 728         return wis_i2c_add_driver(wis_sony_tuner_driver.id,
 729                                         wis_sony_tuner_detect);
 730 }
 731
 732 static void __exit wis_sony_tuner_cleanup(void)
 733 {
 734         wis_i2c_del_driver(wis_sony_tuner_detect);
 735         i2c_del_driver(&wis_sony_tuner_driver);
 736 }
 737
 738 module_init(wis_sony_tuner_init);
 739 module_exit(wis_sony_tuner_cleanup);
 740
 741 MODULE_LICENSE("GPL v2");