err.no Git - linux-2.6/blob - drivers/media/video/msp3400-driver.c

   1 /*
   2  * Programming the mspx4xx sound processor family
   3  *
   4  * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
   5  *
   6  * what works and what doesn't:
   7  *
   8  *  AM-Mono
   9  *      Support for Hauppauge cards added (decoding handled by tuner) added by
  10  *      Frederic Crozat <fcrozat@mail.dotcom.fr>
  11  *
  12  *  FM-Mono
  13  *      should work. The stereo modes are backward compatible to FM-mono,
  14  *      therefore FM-Mono should be allways available.
  15  *
  16  *  FM-Stereo (B/G, used in germany)
  17  *      should work, with autodetect
  18  *
  19  *  FM-Stereo (satellite)
  20  *      should work, no autodetect (i.e. default is mono, but you can
  21  *      switch to stereo -- untested)
  22  *
  23  *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
  24  *      should work, with autodetect. Support for NICAM was added by
  25  *      Pekka Pietikainen <pp@netppl.fi>
  26  *
  27  * TODO:
  28  *   - better SAT support
  29  *
  30  * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
  31  *         using soundcore instead of OSS
  32  *
  33  * This program is free software; you can redistribute it and/or
  34  * modify it under the terms of the GNU General Public License
  35  * as published by the Free Software Foundation; either version 2
  36  * of the License, or (at your option) any later version.
  37  *
  38  * This program is distributed in the hope that it will be useful,
  39  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  40  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  41  * GNU General Public License for more details.
  42  *
  43  * You should have received a copy of the GNU General Public License
  44  * along with this program; if not, write to the Free Software
  45  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  46  */
  47
  48
  49 #include <linux/kernel.h>
  50 #include <linux/module.h>
  51 #include <linux/slab.h>
  52 #include <linux/i2c.h>
  53 #include <linux/videodev.h>
  54 #include <linux/videodev2.h>
  55 #include <media/v4l2-common.h>
  56 #include <media/audiochip.h>
  57 #include <linux/kthread.h>
  58 #include <linux/suspend.h>
  59 #include "msp3400.h"
  60
  61 /* ---------------------------------------------------------------------- */
  62
  63 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
  64 MODULE_AUTHOR("Gerd Knorr");
  65 MODULE_LICENSE("GPL");
  66
  67 /* module parameters */
  68 static int opmode   = OPMODE_AUTO;
  69 int debug    = 0;    /* debug output */
  70 int once     = 0;    /* no continous stereo monitoring */
  71 int amsound  = 0;    /* hard-wire AM sound at 6.5 Hz (france),
  72                                the autoscan seems work well only with FM... */
  73 int standard = 1;    /* Override auto detect of audio standard, if needed. */
  74 int dolby    = 0;
  75
  76 int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
  77                                         (msp34xxg only) 0x00a0-0x03c0 */
  78
  79 /* read-only */
  80 module_param(opmode,           int, 0444);
  81
  82 /* read-write */
  83 module_param(once,             bool, 0644);
  84 module_param(debug,            int, 0644);
  85 module_param(stereo_threshold, int, 0644);
  86 module_param(standard,         int, 0644);
  87 module_param(amsound,          bool, 0644);
  88 module_param(dolby,            bool, 0644);
  89
  90 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
  91 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
  92 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
  93 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
  94 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
  95 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
  96 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
  97
  98 /* ---------------------------------------------------------------------- */
  99
 100 /* control subaddress */
 101 #define I2C_MSP_CONTROL 0x00
 102 /* demodulator unit subaddress */
 103 #define I2C_MSP_DEM     0x10
 104 /* DSP unit subaddress */
 105 #define I2C_MSP_DSP     0x12
 106
 107 /* Addresses to scan */
 108 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
 109 I2C_CLIENT_INSMOD;
 110
 111 /* ----------------------------------------------------------------------- */
 112 /* functions for talking to the MSP3400C Sound processor                   */
 113
 114 int msp_reset(struct i2c_client *client)
 115 {
 116         /* reset and read revision code */
 117         static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
 118         static u8 reset_on[3]  = { I2C_MSP_CONTROL, 0x00, 0x00 };
 119         static u8 write[3]     = { I2C_MSP_DSP + 1, 0x00, 0x1e };
 120         u8 read[2];
 121         struct i2c_msg reset[2] = {
 122                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
 123                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
 124         };
 125         struct i2c_msg test[2] = {
 126                 { client->addr, 0,        3, write },
 127                 { client->addr, I2C_M_RD, 2, read  },
 128         };
 129
 130         v4l_dbg(3, client, "msp_reset\n");
 131         if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
 132             i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
 133             i2c_transfer(client->adapter, test, 2) != 2) {
 134                 v4l_err(client, "chip reset failed\n");
 135                 return -1;
 136         }
 137         return 0;
 138 }
 139
 140 static int msp_read(struct i2c_client *client, int dev, int addr)
 141 {
 142         int err, retval;
 143         u8 write[3];
 144         u8 read[2];
 145         struct i2c_msg msgs[2] = {
 146                 { client->addr, 0,        3, write },
 147                 { client->addr, I2C_M_RD, 2, read  }
 148         };
 149
 150         write[0] = dev + 1;
 151         write[1] = addr >> 8;
 152         write[2] = addr & 0xff;
 153
 154         for (err = 0; err < 3; err++) {
 155                 if (i2c_transfer(client->adapter, msgs, 2) == 2)
 156                         break;
 157                 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
 158                        dev, addr);
 159                 current->state = TASK_INTERRUPTIBLE;
 160                 schedule_timeout(msecs_to_jiffies(10));
 161         }
 162         if (err == 3) {
 163                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 164                 msp_reset(client);
 165                 return -1;
 166         }
 167         retval = read[0] << 8 | read[1];
 168         v4l_dbg(3, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
 169         return retval;
 170 }
 171
 172 int msp_read_dem(struct i2c_client *client, int addr)
 173 {
 174         return msp_read(client, I2C_MSP_DEM, addr);
 175 }
 176
 177 int msp_read_dsp(struct i2c_client *client, int addr)
 178 {
 179         return msp_read(client, I2C_MSP_DSP, addr);
 180 }
 181
 182 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
 183 {
 184         int err;
 185         u8 buffer[5];
 186
 187         buffer[0] = dev;
 188         buffer[1] = addr >> 8;
 189         buffer[2] = addr &  0xff;
 190         buffer[3] = val  >> 8;
 191         buffer[4] = val  &  0xff;
 192
 193         v4l_dbg(3, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
 194         for (err = 0; err < 3; err++) {
 195                 if (i2c_master_send(client, buffer, 5) == 5)
 196                         break;
 197                 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
 198                        dev, addr);
 199                 current->state = TASK_INTERRUPTIBLE;
 200                 schedule_timeout(msecs_to_jiffies(10));
 201         }
 202         if (err == 3) {
 203                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 204                 msp_reset(client);
 205                 return -1;
 206         }
 207         return 0;
 208 }
 209
 210 int msp_write_dem(struct i2c_client *client, int addr, int val)
 211 {
 212         return msp_write(client, I2C_MSP_DEM, addr, val);
 213 }
 214
 215 int msp_write_dsp(struct i2c_client *client, int addr, int val)
 216 {
 217         return msp_write(client, I2C_MSP_DSP, addr, val);
 218 }
 219
 220 /* ----------------------------------------------------------------------- *
 221  * bits  9  8  5 - SCART DSP input Select:
 222  *       0  0  0 - SCART 1 to DSP input (reset position)
 223  *       0  1  0 - MONO to DSP input
 224  *       1  0  0 - SCART 2 to DSP input
 225  *       1  1  1 - Mute DSP input
 226  *
 227  * bits 11 10  6 - SCART 1 Output Select:
 228  *       0  0  0 - undefined (reset position)
 229  *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
 230  *       1  0  0 - MONO input to SCART 1 Output
 231  *       1  1  0 - SCART 1 DA to SCART 1 Output
 232  *       0  0  1 - SCART 2 DA to SCART 1 Output
 233  *       0  1  1 - SCART 1 Input to SCART 1 Output
 234  *       1  1  1 - Mute SCART 1 Output
 235  *
 236  * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
 237  *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
 238  *       0  1  0 - SCART 1 Input to SCART 2 Output
 239  *       1  0  0 - MONO input to SCART 2 Output
 240  *       0  0  1 - SCART 2 DA to SCART 2 Output
 241  *       0  1  1 - SCART 2 Input to SCART 2 Output
 242  *       1  1  0 - Mute SCART 2 Output
 243  *
 244  * Bits 4 to 0 should be zero.
 245  * ----------------------------------------------------------------------- */
 246
 247 static int scarts[3][9] = {
 248         /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
 249         /* SCART DSP Input select */
 250         { 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
 251         /* SCART1 Output select */
 252         { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
 253         /* SCART2 Output select */
 254         { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
 255 };
 256
 257 static char *scart_names[] = {
 258         "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
 259 };
 260
 261 void msp_set_scart(struct i2c_client *client, int in, int out)
 262 {
 263         struct msp_state *state = i2c_get_clientdata(client);
 264
 265         state->in_scart=in;
 266
 267         if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
 268                 if (-1 == scarts[out][in])
 269                         return;
 270
 271                 state->acb &= ~scarts[out][SCART_MASK];
 272                 state->acb |=  scarts[out][in];
 273         } else
 274                 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
 275
 276         v4l_dbg(1, client, "scart switch: %s => %d (ACB=0x%04x)\n",
 277                                                 scart_names[in], out, state->acb);
 278         msp_write_dsp(client, 0x13, state->acb);
 279
 280         /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
 281         msp_write_dem(client, 0x40, state->i2s_mode);
 282 }
 283
 284 void msp_set_mute(struct i2c_client *client)
 285 {
 286         v4l_dbg(1, client, "mute audio\n");
 287         msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
 288         msp_write_dsp(client, 0x0006, 0); /* headphones */
 289 }
 290
 291 void msp_set_audio(struct i2c_client *client)
 292 {
 293         struct msp_state *state = i2c_get_clientdata(client);
 294         int val = 0, bal = 0, bass, treble;
 295
 296         if (!state->muted)
 297                 val = (state->volume * 0x7f / 65535) << 8;
 298         if (val)
 299                 bal = (state->balance / 256) - 128;
 300         bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
 301         treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
 302
 303         v4l_dbg(1, client, "mute=%s volume=%d balance=%d bass=%d treble=%d\n",
 304                 state->muted ? "on" : "off", state->volume, state->balance,
 305                 state->bass, state->treble);
 306
 307         msp_write_dsp(client, 0x0000, val); /* loudspeaker */
 308         msp_write_dsp(client, 0x0006, val); /* headphones */
 309         msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
 310         msp_write_dsp(client, 0x0001, bal << 8);
 311         msp_write_dsp(client, 0x0002, bass); /* loudspeaker */
 312         msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
 313 }
 314
 315 int msp_modus(struct i2c_client *client, int norm)
 316 {
 317         switch (norm) {
 318         case VIDEO_MODE_PAL:
 319                 v4l_dbg(1, client, "video mode selected to PAL\n");
 320
 321 #if 1
 322                 /* experimental: not sure this works with all chip versions */
 323                 return 0x7003;
 324 #else
 325                 /* previous value, try this if it breaks ... */
 326                 return 0x1003;
 327 #endif
 328         case VIDEO_MODE_NTSC:  /* BTSC */
 329                 v4l_dbg(1, client, "video mode selected to NTSC\n");
 330                 return 0x2003;
 331         case VIDEO_MODE_SECAM:
 332                 v4l_dbg(1, client, "video mode selected to SECAM\n");
 333                 return 0x0003;
 334         case VIDEO_MODE_RADIO:
 335                 v4l_dbg(1, client, "video mode selected to Radio\n");
 336                 return 0x0003;
 337         case VIDEO_MODE_AUTO:
 338                 v4l_dbg(1, client, "video mode selected to Auto\n");
 339                 return 0x2003;
 340         default:
 341                 return 0x0003;
 342         }
 343 }
 344
 345 int msp_standard(int norm)
 346 {
 347         switch (norm) {
 348         case VIDEO_MODE_PAL:
 349                 return 1;
 350         case VIDEO_MODE_NTSC:  /* BTSC */
 351                 return 0x0020;
 352         case VIDEO_MODE_SECAM:
 353                 return 1;
 354         case VIDEO_MODE_RADIO:
 355                 return 0x0040;
 356         default:
 357                 return 1;
 358         }
 359 }
 360
 361 /* ------------------------------------------------------------------------ */
 362
 363
 364 static void msp_wake_thread(struct i2c_client *client)
 365 {
 366         struct msp_state *state = i2c_get_clientdata(client);
 367
 368         if (NULL == state->kthread)
 369                 return;
 370         msp_set_mute(client);
 371         state->watch_stereo = 0;
 372         state->restart = 1;
 373         wake_up_interruptible(&state->wq);
 374 }
 375
 376 int msp_sleep(struct msp_state *state, int timeout)
 377 {
 378         DECLARE_WAITQUEUE(wait, current);
 379
 380         add_wait_queue(&state->wq, &wait);
 381         if (!kthread_should_stop()) {
 382                 if (timeout < 0) {
 383                         set_current_state(TASK_INTERRUPTIBLE);
 384                         schedule();
 385                 } else {
 386                         schedule_timeout_interruptible
 387                                                 (msecs_to_jiffies(timeout));
 388                 }
 389         }
 390
 391         remove_wait_queue(&state->wq, &wait);
 392         try_to_freeze();
 393         return state->restart;
 394 }
 395
 396 /* ------------------------------------------------------------------------ */
 397
 398 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
 399 {
 400         int mode = 0;
 401
 402         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
 403                 mode |= VIDEO_SOUND_STEREO;
 404         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
 405                 mode |= VIDEO_SOUND_LANG2;
 406         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
 407                 mode |= VIDEO_SOUND_LANG1;
 408         if (mode == 0)
 409                 mode |= VIDEO_SOUND_MONO;
 410         return mode;
 411 }
 412
 413 static int msp_mode_v4l1_to_v4l2(int mode)
 414 {
 415         if (mode & VIDEO_SOUND_STEREO)
 416                 return V4L2_TUNER_MODE_STEREO;
 417         if (mode & VIDEO_SOUND_LANG2)
 418                 return V4L2_TUNER_MODE_LANG2;
 419         if (mode & VIDEO_SOUND_LANG1)
 420                 return V4L2_TUNER_MODE_LANG1;
 421         return V4L2_TUNER_MODE_MONO;
 422 }
 423
 424 static void msp_any_detect_stereo(struct i2c_client *client)
 425 {
 426         struct msp_state *state  = i2c_get_clientdata(client);
 427
 428         switch (state->opmode) {
 429         case OPMODE_MANUAL:
 430         case OPMODE_AUTODETECT:
 431                 autodetect_stereo(client);
 432                 break;
 433         case OPMODE_AUTOSELECT:
 434                 msp34xxg_detect_stereo(client);
 435                 break;
 436         }
 437 }
 438
 439 static struct v4l2_queryctrl msp_qctrl[] = {
 440         {
 441                 .id            = V4L2_CID_AUDIO_VOLUME,
 442                 .name          = "Volume",
 443                 .minimum       = 0,
 444                 .maximum       = 65535,
 445                 .step          = 65535/100,
 446                 .default_value = 58880,
 447                 .flags         = 0,
 448                 .type          = V4L2_CTRL_TYPE_INTEGER,
 449         },{
 450                 .id            = V4L2_CID_AUDIO_BALANCE,
 451                 .name          = "Balance",
 452                 .minimum       = 0,
 453                 .maximum       = 65535,
 454                 .step          = 65535/100,
 455                 .default_value = 32768,
 456                 .flags         = 0,
 457                 .type          = V4L2_CTRL_TYPE_INTEGER,
 458         },{
 459                 .id            = V4L2_CID_AUDIO_MUTE,
 460                 .name          = "Mute",
 461                 .minimum       = 0,
 462                 .maximum       = 1,
 463                 .step          = 1,
 464                 .default_value = 1,
 465                 .flags         = 0,
 466                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 467         },{
 468                 .id            = V4L2_CID_AUDIO_BASS,
 469                 .name          = "Bass",
 470                 .minimum       = 0,
 471                 .maximum       = 65535,
 472                 .step          = 65535/100,
 473                 .default_value = 32768,
 474                 .type          = V4L2_CTRL_TYPE_INTEGER,
 475         },{
 476                 .id            = V4L2_CID_AUDIO_TREBLE,
 477                 .name          = "Treble",
 478                 .minimum       = 0,
 479                 .maximum       = 65535,
 480                 .step          = 65535/100,
 481                 .default_value = 32768,
 482                 .type          = V4L2_CTRL_TYPE_INTEGER,
 483         },
 484 };
 485
 486
 487 static void msp_any_set_audmode(struct i2c_client *client, int audmode)
 488 {
 489         struct msp_state *state = i2c_get_clientdata(client);
 490
 491         switch (state->opmode) {
 492         case OPMODE_MANUAL:
 493         case OPMODE_AUTODETECT:
 494                 state->watch_stereo = 0;
 495                 msp3400c_setstereo(client, audmode);
 496                 break;
 497         case OPMODE_AUTOSELECT:
 498                 msp34xxg_set_audmode(client, audmode);
 499                 break;
 500         }
 501 }
 502
 503 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 504 {
 505         struct msp_state *state = i2c_get_clientdata(client);
 506
 507         switch (ctrl->id) {
 508         case V4L2_CID_AUDIO_MUTE:
 509                 ctrl->value = state->muted;
 510                 break;
 511
 512         case V4L2_CID_AUDIO_BALANCE:
 513                 ctrl->value = state->balance;
 514                 break;
 515
 516         case V4L2_CID_AUDIO_BASS:
 517                 ctrl->value = state->bass;
 518                 break;
 519
 520         case V4L2_CID_AUDIO_TREBLE:
 521                 ctrl->value = state->treble;
 522                 break;
 523
 524         case V4L2_CID_AUDIO_VOLUME:
 525                 ctrl->value = state->volume;
 526                 break;
 527
 528         default:
 529                 return -EINVAL;
 530         }
 531         return 0;
 532 }
 533
 534 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 535 {
 536         struct msp_state *state = i2c_get_clientdata(client);
 537
 538         switch (ctrl->id) {
 539         case V4L2_CID_AUDIO_MUTE:
 540                 if (ctrl->value < 0 || ctrl->value >= 2)
 541                         return -ERANGE;
 542                 state->muted = ctrl->value;
 543                 break;
 544
 545         case V4L2_CID_AUDIO_BASS:
 546                 state->bass = ctrl->value;
 547                 break;
 548
 549         case V4L2_CID_AUDIO_TREBLE:
 550                 state->treble = ctrl->value;
 551                 break;
 552
 553         case V4L2_CID_AUDIO_BALANCE:
 554                 state->balance = ctrl->value;
 555                 break;
 556
 557         case V4L2_CID_AUDIO_VOLUME:
 558                 state->volume = ctrl->value;
 559                 if (state->volume == 0)
 560                         state->balance = 32768;
 561                 break;
 562
 563         default:
 564                 return -EINVAL;
 565         }
 566         msp_set_audio(client);
 567         return 0;
 568 }
 569
 570 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 571 {
 572         struct msp_state *state = i2c_get_clientdata(client);
 573         u16 *sarg = arg;
 574         int scart = 0;
 575
 576         if (debug >= 2)
 577                 v4l_i2c_print_ioctl(client, cmd);
 578
 579         switch (cmd) {
 580         case AUDC_SET_INPUT:
 581                 if (*sarg == state->input)
 582                         break;
 583                 state->input = *sarg;
 584                 switch (*sarg) {
 585                 case AUDIO_RADIO:
 586                         /* Hauppauge uses IN2 for the radio */
 587                         state->mode = MSP_MODE_FM_RADIO;
 588                         scart       = SCART_IN2;
 589                         break;
 590                 case AUDIO_EXTERN_1:
 591                         /* IN1 is often used for external input ... */
 592                         state->mode = MSP_MODE_EXTERN;
 593                         scart       = SCART_IN1;
 594                         break;
 595                 case AUDIO_EXTERN_2:
 596                         /* ... sometimes it is IN2 through ;) */
 597                         state->mode = MSP_MODE_EXTERN;
 598                         scart       = SCART_IN2;
 599                         break;
 600                 case AUDIO_TUNER:
 601                         state->mode = -1;
 602                         break;
 603                 default:
 604                         if (*sarg & AUDIO_MUTE)
 605                                 msp_set_scart(client, SCART_MUTE, 0);
 606                         break;
 607                 }
 608                 if (scart) {
 609                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 610                         state->audmode = V4L2_TUNER_MODE_STEREO;
 611                         msp_set_scart(client, scart, 0);
 612                         msp_write_dsp(client, 0x000d, 0x1900);
 613                         if (state->opmode != OPMODE_AUTOSELECT)
 614                                 msp3400c_setstereo(client, state->audmode);
 615                 }
 616                 msp_wake_thread(client);
 617                 break;
 618
 619         case AUDC_SET_RADIO:
 620                 state->norm = VIDEO_MODE_RADIO;
 621                 v4l_dbg(1, client, "switching to radio mode\n");
 622                 state->watch_stereo = 0;
 623                 switch (state->opmode) {
 624                 case OPMODE_MANUAL:
 625                         /* set msp3400 to FM radio mode */
 626                         msp3400c_setmode(client, MSP_MODE_FM_RADIO);
 627                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),
 628                                             MSP_CARRIER(10.7));
 629                         msp_set_audio(client);
 630                         break;
 631                 case OPMODE_AUTODETECT:
 632                 case OPMODE_AUTOSELECT:
 633                         /* the thread will do for us */
 634                         msp_wake_thread(client);
 635                         break;
 636                 }
 637                 break;
 638
 639         /* --- v4l ioctls --- */
 640         /* take care: bttv does userspace copying, we'll get a
 641            kernel pointer here... */
 642         case VIDIOCGAUDIO:
 643         {
 644                 struct video_audio *va = arg;
 645
 646                 va->flags |= VIDEO_AUDIO_VOLUME |
 647                         VIDEO_AUDIO_BASS |
 648                         VIDEO_AUDIO_TREBLE |
 649                         VIDEO_AUDIO_MUTABLE;
 650                 if (state->muted)
 651                         va->flags |= VIDEO_AUDIO_MUTE;
 652
 653                 if (state->muted)
 654                         va->flags |= VIDEO_AUDIO_MUTE;
 655                 va->volume = state->volume;
 656                 va->balance = state->volume ? state->balance : 32768;
 657                 va->bass = state->bass;
 658                 va->treble = state->treble;
 659
 660                 msp_any_detect_stereo(client);
 661                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
 662                 break;
 663         }
 664
 665         case VIDIOCSAUDIO:
 666         {
 667                 struct video_audio *va = arg;
 668
 669                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
 670                 state->volume = va->volume;
 671                 state->balance = va->balance;
 672                 state->bass = va->bass;
 673                 state->treble = va->treble;
 674                 msp_set_audio(client);
 675
 676                 if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO)
 677                         msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
 678                 break;
 679         }
 680
 681         case VIDIOCSCHAN:
 682         {
 683                 struct video_channel *vc = arg;
 684
 685                 state->norm = vc->norm;
 686                 msp_wake_thread(client);
 687                 break;
 688         }
 689
 690         case VIDIOCSFREQ:
 691         case VIDIOC_S_FREQUENCY:
 692         {
 693                 /* new channel -- kick audio carrier scan */
 694                 msp_wake_thread(client);
 695                 break;
 696         }
 697
 698         /* msp34xx specific */
 699         case MSP_SET_MATRIX:
 700         {
 701                 struct msp_matrix *mspm = arg;
 702
 703                 msp_set_scart(client, mspm->input, mspm->output);
 704                 break;
 705         }
 706
 707         /* --- v4l2 ioctls --- */
 708         case VIDIOC_S_STD:
 709         {
 710                 v4l2_std_id *id = arg;
 711
 712                 /*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/
 713                 if (*id & V4L2_STD_PAL) {
 714                         state->norm = VIDEO_MODE_PAL;
 715                 } else if (*id & V4L2_STD_SECAM) {
 716                         state->norm = VIDEO_MODE_SECAM;
 717                 } else {
 718                         state->norm = VIDEO_MODE_NTSC;
 719                 }
 720
 721                 msp_wake_thread(client);
 722                 return 0;
 723         }
 724
 725         case VIDIOC_ENUMINPUT:
 726         {
 727                 struct v4l2_input *i = arg;
 728
 729                 if (i->index != 0)
 730                         return -EINVAL;
 731
 732                 i->type = V4L2_INPUT_TYPE_TUNER;
 733                 switch (i->index) {
 734                 case AUDIO_RADIO:
 735                         strcpy(i->name, "Radio");
 736                         break;
 737                 case AUDIO_EXTERN_1:
 738                         strcpy(i->name, "Extern 1");
 739                         break;
 740                 case AUDIO_EXTERN_2:
 741                         strcpy(i->name, "Extern 2");
 742                         break;
 743                 case AUDIO_TUNER:
 744                         strcpy(i->name, "Television");
 745                         break;
 746                 default:
 747                         return -EINVAL;
 748                 }
 749                 return 0;
 750         }
 751
 752         case VIDIOC_G_AUDIO:
 753         {
 754                 struct v4l2_audio *a = arg;
 755
 756                 memset(a, 0, sizeof(*a));
 757
 758                 switch (a->index) {
 759                 case AUDIO_RADIO:
 760                         strcpy(a->name, "Radio");
 761                         break;
 762                 case AUDIO_EXTERN_1:
 763                         strcpy(a->name, "Extern 1");
 764                         break;
 765                 case AUDIO_EXTERN_2:
 766                         strcpy(a->name, "Extern 2");
 767                         break;
 768                 case AUDIO_TUNER:
 769                         strcpy(a->name, "Television");
 770                         break;
 771                 default:
 772                         return -EINVAL;
 773                 }
 774
 775                 msp_any_detect_stereo(client);
 776                 if (state->audmode == V4L2_TUNER_MODE_STEREO) {
 777                         a->capability = V4L2_AUDCAP_STEREO;
 778                 }
 779
 780                 break;
 781         }
 782
 783         case VIDIOC_S_AUDIO:
 784         {
 785                 struct v4l2_audio *sarg = arg;
 786
 787                 switch (sarg->index) {
 788                 case AUDIO_RADIO:
 789                         /* Hauppauge uses IN2 for the radio */
 790                         state->mode = MSP_MODE_FM_RADIO;
 791                         scart       = SCART_IN2;
 792                         break;
 793                 case AUDIO_EXTERN_1:
 794                         /* IN1 is often used for external input ... */
 795                         state->mode = MSP_MODE_EXTERN;
 796                         scart       = SCART_IN1;
 797                         break;
 798                 case AUDIO_EXTERN_2:
 799                         /* ... sometimes it is IN2 through ;) */
 800                         state->mode = MSP_MODE_EXTERN;
 801                         scart       = SCART_IN2;
 802                         break;
 803                 case AUDIO_TUNER:
 804                         state->mode = -1;
 805                         break;
 806                 }
 807                 if (scart) {
 808                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 809                         state->audmode = V4L2_TUNER_MODE_STEREO;
 810                         msp_set_scart(client, scart, 0);
 811                         msp_write_dsp(client, 0x000d, 0x1900);
 812                 }
 813                 if (sarg->capability == V4L2_AUDCAP_STEREO) {
 814                         state->audmode = V4L2_TUNER_MODE_STEREO;
 815                 } else {
 816                         state->audmode &= ~V4L2_TUNER_MODE_STEREO;
 817                 }
 818                 msp_any_set_audmode(client, state->audmode);
 819                 msp_wake_thread(client);
 820                 break;
 821         }
 822
 823         case VIDIOC_G_TUNER:
 824         {
 825                 struct v4l2_tuner *vt = arg;
 826
 827                 msp_any_detect_stereo(client);
 828                 vt->audmode    = state->audmode;
 829                 vt->rxsubchans = state->rxsubchans;
 830                 vt->capability = V4L2_TUNER_CAP_STEREO |
 831                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 832                 break;
 833         }
 834
 835         case VIDIOC_S_TUNER:
 836         {
 837                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 838
 839                 /* only set audmode */
 840                 if (vt->audmode != -1 && vt->audmode != 0)
 841                         msp_any_set_audmode(client, vt->audmode);
 842                 break;
 843         }
 844
 845         case VIDIOC_G_AUDOUT:
 846         {
 847                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 848                 int idx = a->index;
 849
 850                 memset(a, 0, sizeof(*a));
 851
 852                 switch (idx) {
 853                 case 0:
 854                         strcpy(a->name, "Scart1 Out");
 855                         break;
 856                 case 1:
 857                         strcpy(a->name, "Scart2 Out");
 858                         break;
 859                 case 2:
 860                         strcpy(a->name, "I2S Out");
 861                         break;
 862                 default:
 863                         return -EINVAL;
 864                 }
 865                 break;
 866
 867         }
 868
 869         case VIDIOC_S_AUDOUT:
 870         {
 871                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 872
 873                 if (a->index < 0 || a->index > 2)
 874                         return -EINVAL;
 875
 876                 v4l_dbg(1, client, "Setting audio out on msp34xx to input %i\n", a->index);
 877                 msp_set_scart(client, state->in_scart, a->index + 1);
 878
 879                 break;
 880         }
 881
 882         case VIDIOC_INT_I2S_CLOCK_FREQ:
 883         {
 884                 u32 *a = (u32 *)arg;
 885
 886                 v4l_dbg(1, client, "Setting I2S speed to %d\n", *a);
 887
 888                 switch (*a) {
 889                         case 1024000:
 890                                 state->i2s_mode = 0;
 891                                 break;
 892                         case 2048000:
 893                                 state->i2s_mode = 1;
 894                                 break;
 895                         default:
 896                                 return -EINVAL;
 897                 }
 898                 break;
 899         }
 900
 901         case VIDIOC_QUERYCTRL:
 902         {
 903                 struct v4l2_queryctrl *qc = arg;
 904                 int i;
 905
 906                 for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++)
 907                         if (qc->id && qc->id == msp_qctrl[i].id) {
 908                                 memcpy(qc, &msp_qctrl[i], sizeof(*qc));
 909                                 return 0;
 910                         }
 911                 return -EINVAL;
 912         }
 913
 914         case VIDIOC_G_CTRL:
 915                 return msp_get_ctrl(client, arg);
 916
 917         case VIDIOC_S_CTRL:
 918                 return msp_set_ctrl(client, arg);
 919
 920         case VIDIOC_LOG_STATUS:
 921                 msp_any_detect_stereo(client);
 922                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 923                                 client->name, state->rev1, state->rev2);
 924                 v4l_info(client, "Audio:  volume %d balance %d bass %d treble %d%s\n",
 925                                 state->volume, state->balance,
 926                                 state->bass, state->treble,
 927                                 state->muted ? " (muted)" : "");
 928                 v4l_info(client, "Mode:   %s (%s%s)\n", msp_standard_mode_name(state->mode),
 929                         (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 930                         (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 931                 v4l_info(client, "ACB:    0x%04x\n", state->acb);
 932                 break;
 933
 934         default:
 935                 /* nothing */
 936                 break;
 937         }
 938         return 0;
 939 }
 940
 941 static int msp_suspend(struct device * dev, pm_message_t state)
 942 {
 943         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 944
 945         v4l_dbg(1, client, "suspend\n");
 946         msp_reset(client);
 947         return 0;
 948 }
 949
 950 static int msp_resume(struct device * dev)
 951 {
 952         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 953
 954         v4l_dbg(1, client, "resume\n");
 955         msp_wake_thread(client);
 956         return 0;
 957 }
 958
 959 /* ----------------------------------------------------------------------- */
 960
 961 static struct i2c_driver i2c_driver;
 962
 963 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 964 {
 965         struct i2c_client *client;
 966         struct msp_state *state;
 967         int (*thread_func)(void *data) = NULL;
 968
 969         client = kmalloc(sizeof(*client), GFP_KERNEL);
 970         if (client == NULL)
 971                 return -ENOMEM;
 972         memset(client, 0, sizeof(*client));
 973         client->addr = address;
 974         client->adapter = adapter;
 975         client->driver = &i2c_driver;
 976         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
 977
 978         if (msp_reset(client) == -1) {
 979                 v4l_dbg(1, client, "msp3400 not found\n");
 980                 kfree(client);
 981                 return -1;
 982         }
 983
 984         state = kmalloc(sizeof(*state), GFP_KERNEL);
 985         if (state == NULL) {
 986                 kfree(client);
 987                 return -ENOMEM;
 988         }
 989         i2c_set_clientdata(client, state);
 990
 991         memset(state, 0, sizeof(*state));
 992         state->norm = VIDEO_MODE_NTSC;
 993         state->volume = 58880;  /* 0db gain */
 994         state->balance = 32768; /* 0db gain */
 995         state->bass = 32768;
 996         state->treble = 32768;
 997         state->input = -1;
 998         state->muted = 0;
 999         state->i2s_mode = 0;
1000         init_waitqueue_head(&state->wq);
1001
1002         state->rev1 = msp_read_dsp(client, 0x1e);
1003         if (state->rev1 != -1)
1004                 state->rev2 = msp_read_dsp(client, 0x1f);
1005         v4l_dbg(1, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
1006         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
1007                 v4l_dbg(1, client, "not an msp3400 (cannot read chip version)\n");
1008                 kfree(state);
1009                 kfree(client);
1010                 return -1;
1011         }
1012
1013         msp_set_audio(client);
1014
1015         snprintf(client->name, sizeof(client->name), "MSP%c4%02d%c-%c%d",
1016                  ((state->rev1 >> 4) & 0x0f) + '3',
1017                  (state->rev2 >> 8) & 0xff,
1018                  (state->rev1 & 0x0f) + '@',
1019                  ((state->rev1 >> 8) & 0xff) + '@',
1020                  state->rev2 & 0x1f);
1021
1022         state->opmode = opmode;
1023         if (state->opmode == OPMODE_AUTO) {
1024                 /* MSP revision G and up have both autodetect and autoselect */
1025                 if ((state->rev1 & 0x0f) >= 'G'-'@')
1026                         state->opmode = OPMODE_AUTOSELECT;
1027                 /* MSP revision D and up have autodetect */
1028                 else if ((state->rev1 & 0x0f) >= 'D'-'@')
1029                         state->opmode = OPMODE_AUTODETECT;
1030                 else
1031                         state->opmode = OPMODE_MANUAL;
1032         }
1033
1034         /* hello world :-) */
1035         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1036         v4l_info(client, "%s ", client->name);
1037         if (HAVE_NICAM(state) && HAVE_RADIO(state))
1038                 printk("supports nicam and radio, ");
1039         else if (HAVE_NICAM(state))
1040                 printk("supports nicam, ");
1041         else if (HAVE_RADIO(state))
1042                 printk("supports radio, ");
1043         printk("mode is ");
1044
1045         /* version-specific initialization */
1046         switch (state->opmode) {
1047         case OPMODE_MANUAL:
1048                 printk("manual");
1049                 thread_func = msp3400c_thread;
1050                 break;
1051         case OPMODE_AUTODETECT:
1052                 printk("autodetect");
1053                 thread_func = msp3410d_thread;
1054                 break;
1055         case OPMODE_AUTOSELECT:
1056                 printk("autodetect and autoselect");
1057                 thread_func = msp34xxg_thread;
1058                 break;
1059         }
1060         printk("\n");
1061
1062         /* startup control thread if needed */
1063         if (thread_func) {
1064                 state->kthread = kthread_run(thread_func, client, "msp34xx");
1065
1066                 if (state->kthread == NULL)
1067                         v4l_warn(client, "kernel_thread() failed\n");
1068                 msp_wake_thread(client);
1069         }
1070
1071         /* done */
1072         i2c_attach_client(client);
1073
1074         return 0;
1075 }
1076
1077 static int msp_probe(struct i2c_adapter *adapter)
1078 {
1079         if (adapter->class & I2C_CLASS_TV_ANALOG)
1080                 return i2c_probe(adapter, &addr_data, msp_attach);
1081         return 0;
1082 }
1083
1084 static int msp_detach(struct i2c_client *client)
1085 {
1086         struct msp_state *state = i2c_get_clientdata(client);
1087         int err;
1088
1089         /* shutdown control thread */
1090         if (state->kthread) {
1091                 state->restart = 1;
1092                 kthread_stop(state->kthread);
1093         }
1094         msp_reset(client);
1095
1096         err = i2c_detach_client(client);
1097         if (err) {
1098                 return err;
1099         }
1100
1101         kfree(state);
1102         kfree(client);
1103         return 0;
1104 }
1105
1106 /* ----------------------------------------------------------------------- */
1107
1108 /* i2c implementation */
1109 static struct i2c_driver i2c_driver = {
1110         .id             = I2C_DRIVERID_MSP3400,
1111         .attach_adapter = msp_probe,
1112         .detach_client  = msp_detach,
1113         .command        = msp_command,
1114         .driver = {
1115                 .name    = "msp3400",
1116                 .suspend = msp_suspend,
1117                 .resume  = msp_resume,
1118         },
1119 };
1120
1121 static int __init msp3400_init_module(void)
1122 {
1123         return i2c_add_driver(&i2c_driver);
1124 }
1125
1126 static void __exit msp3400_cleanup_module(void)
1127 {
1128         i2c_del_driver(&i2c_driver);
1129 }
1130
1131 module_init(msp3400_init_module);
1132 module_exit(msp3400_cleanup_module);
1133
1134 /*
1135  * Overrides for Emacs so that we follow Linus's tabbing style.
1136  * ---------------------------------------------------------------------------
1137  * Local variables:
1138  * c-basic-offset: 8
1139  * End:
1140  */