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,             int, 0644);
  84 module_param(debug,            int, 0644);
  85 module_param(stereo_threshold, int, 0644);
  86 module_param(standard,         int, 0644);
  87 module_param(amsound,          int, 0644);
  88 module_param(dolby,            int, 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
 110 I2C_CLIENT_INSMOD;
 111
 112
 113 /* ----------------------------------------------------------------------- */
 114 /* functions for talking to the MSP3400C Sound processor                   */
 115
 116 int msp_reset(struct i2c_client *client)
 117 {
 118         /* reset and read revision code */
 119         static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
 120         static u8 reset_on[3]  = { I2C_MSP_CONTROL, 0x00, 0x00 };
 121         static u8 write[3]     = { I2C_MSP_DSP + 1, 0x00, 0x1e };
 122         u8 read[2];
 123         struct i2c_msg reset[2] = {
 124                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
 125                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
 126         };
 127         struct i2c_msg test[2] = {
 128                 { client->addr, 0,        3, write },
 129                 { client->addr, I2C_M_RD, 2, read  },
 130         };
 131
 132         v4l_dbg(3, client, "msp_reset\n");
 133         if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
 134             i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
 135             i2c_transfer(client->adapter, test, 2) != 2) {
 136                 v4l_err(client, "chip reset failed\n");
 137                 return -1;
 138         }
 139         return 0;
 140 }
 141
 142 static int msp_read(struct i2c_client *client, int dev, int addr)
 143 {
 144         int err, retval;
 145         u8 write[3];
 146         u8 read[2];
 147         struct i2c_msg msgs[2] = {
 148                 { client->addr, 0,        3, write },
 149                 { client->addr, I2C_M_RD, 2, read  }
 150         };
 151
 152         write[0] = dev + 1;
 153         write[1] = addr >> 8;
 154         write[2] = addr & 0xff;
 155
 156         for (err = 0; err < 3; err++) {
 157                 if (i2c_transfer(client->adapter, msgs, 2) == 2)
 158                         break;
 159                 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
 160                        dev, addr);
 161                 current->state = TASK_INTERRUPTIBLE;
 162                 schedule_timeout(msecs_to_jiffies(10));
 163         }
 164         if (err == 3) {
 165                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 166                 msp_reset(client);
 167                 return -1;
 168         }
 169         retval = read[0] << 8 | read[1];
 170         v4l_dbg(3, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
 171         return retval;
 172 }
 173
 174 int msp_read_dem(struct i2c_client *client, int addr)
 175 {
 176         return msp_read(client, I2C_MSP_DEM, addr);
 177 }
 178
 179 int msp_read_dsp(struct i2c_client *client, int addr)
 180 {
 181         return msp_read(client, I2C_MSP_DSP, addr);
 182 }
 183
 184 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
 185 {
 186         int err;
 187         u8 buffer[5];
 188
 189         buffer[0] = dev;
 190         buffer[1] = addr >> 8;
 191         buffer[2] = addr &  0xff;
 192         buffer[3] = val  >> 8;
 193         buffer[4] = val  &  0xff;
 194
 195         v4l_dbg(3, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
 196         for (err = 0; err < 3; err++) {
 197                 if (i2c_master_send(client, buffer, 5) == 5)
 198                         break;
 199                 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
 200                        dev, addr);
 201                 current->state = TASK_INTERRUPTIBLE;
 202                 schedule_timeout(msecs_to_jiffies(10));
 203         }
 204         if (err == 3) {
 205                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 206                 msp_reset(client);
 207                 return -1;
 208         }
 209         return 0;
 210 }
 211
 212 int msp_write_dem(struct i2c_client *client, int addr, int val)
 213 {
 214         return msp_write(client, I2C_MSP_DEM, addr, val);
 215 }
 216
 217 int msp_write_dsp(struct i2c_client *client, int addr, int val)
 218 {
 219         return msp_write(client, I2C_MSP_DSP, addr, val);
 220 }
 221
 222 /* ----------------------------------------------------------------------- *
 223  * bits  9  8  5 - SCART DSP input Select:
 224  *       0  0  0 - SCART 1 to DSP input (reset position)
 225  *       0  1  0 - MONO to DSP input
 226  *       1  0  0 - SCART 2 to DSP input
 227  *       1  1  1 - Mute DSP input
 228  *
 229  * bits 11 10  6 - SCART 1 Output Select:
 230  *       0  0  0 - undefined (reset position)
 231  *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
 232  *       1  0  0 - MONO input to SCART 1 Output
 233  *       1  1  0 - SCART 1 DA to SCART 1 Output
 234  *       0  0  1 - SCART 2 DA to SCART 1 Output
 235  *       0  1  1 - SCART 1 Input to SCART 1 Output
 236  *       1  1  1 - Mute SCART 1 Output
 237  *
 238  * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
 239  *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
 240  *       0  1  0 - SCART 1 Input to SCART 2 Output
 241  *       1  0  0 - MONO input to SCART 2 Output
 242  *       0  0  1 - SCART 2 DA to SCART 2 Output
 243  *       0  1  1 - SCART 2 Input to SCART 2 Output
 244  *       1  1  0 - Mute SCART 2 Output
 245  *
 246  * Bits 4 to 0 should be zero.
 247  * ----------------------------------------------------------------------- */
 248
 249 static int scarts[3][9] = {
 250         /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
 251         /* SCART DSP Input select */
 252         { 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
 253         /* SCART1 Output select */
 254         { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
 255         /* SCART2 Output select */
 256         { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
 257 };
 258
 259 static char *scart_names[] = {
 260         "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
 261 };
 262
 263 void msp_set_scart(struct i2c_client *client, int in, int out)
 264 {
 265         struct msp_state *state = i2c_get_clientdata(client);
 266
 267         state->in_scart=in;
 268
 269         if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
 270                 if (-1 == scarts[out][in])
 271                         return;
 272
 273                 state->acb &= ~scarts[out][SCART_MASK];
 274                 state->acb |=  scarts[out][in];
 275         } else
 276                 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
 277
 278         v4l_dbg(1, client, "scart switch: %s => %d (ACB=0x%04x)\n",
 279                                                 scart_names[in], out, state->acb);
 280         msp_write_dsp(client, 0x13, state->acb);
 281
 282         /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
 283         msp_write_dem(client, 0x40, state->i2s_mode);
 284 }
 285
 286 void msp_set_mute(struct i2c_client *client)
 287 {
 288         v4l_dbg(1, client, "mute audio\n");
 289         msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
 290         msp_write_dsp(client, 0x0006, 0); /* headphones */
 291 }
 292
 293 void msp_set_audio(struct i2c_client *client)
 294 {
 295         struct msp_state *state = i2c_get_clientdata(client);
 296         int val = 0, bal = 0, bass, treble;
 297
 298         if (!state->muted)
 299                 val = (state->volume * 0x7f / 65535) << 8;
 300         if (val)
 301                 bal = (state->balance / 256) - 128;
 302         bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
 303         treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
 304
 305         v4l_dbg(1, client, "mute=%s volume=%d balance=%d bass=%d treble=%d\n",
 306                 state->muted ? "on" : "off", state->volume, state->balance,
 307                 state->bass, state->treble);
 308
 309         msp_write_dsp(client, 0x0000, val); /* loudspeaker */
 310         msp_write_dsp(client, 0x0006, val); /* headphones */
 311         msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
 312         msp_write_dsp(client, 0x0001, bal << 8);
 313         msp_write_dsp(client, 0x0002, bass); /* loudspeaker */
 314         msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
 315 }
 316
 317 int msp_modus(struct i2c_client *client, int norm)
 318 {
 319         switch (norm) {
 320         case VIDEO_MODE_PAL:
 321                 v4l_dbg(1, client, "video mode selected to PAL\n");
 322
 323 #if 1
 324                 /* experimental: not sure this works with all chip versions */
 325                 return 0x7003;
 326 #else
 327                 /* previous value, try this if it breaks ... */
 328                 return 0x1003;
 329 #endif
 330         case VIDEO_MODE_NTSC:  /* BTSC */
 331                 v4l_dbg(1, client, "video mode selected to NTSC\n");
 332                 return 0x2003;
 333         case VIDEO_MODE_SECAM:
 334                 v4l_dbg(1, client, "video mode selected to SECAM\n");
 335                 return 0x0003;
 336         case VIDEO_MODE_RADIO:
 337                 v4l_dbg(1, client, "video mode selected to Radio\n");
 338                 return 0x0003;
 339         case VIDEO_MODE_AUTO:
 340                 v4l_dbg(1, client, "video mode selected to Auto\n");
 341                 return 0x2003;
 342         default:
 343                 return 0x0003;
 344         }
 345 }
 346
 347 int msp_standard(int norm)
 348 {
 349         switch (norm) {
 350         case VIDEO_MODE_PAL:
 351                 return 1;
 352         case VIDEO_MODE_NTSC:  /* BTSC */
 353                 return 0x0020;
 354         case VIDEO_MODE_SECAM:
 355                 return 1;
 356         case VIDEO_MODE_RADIO:
 357                 return 0x0040;
 358         default:
 359                 return 1;
 360         }
 361 }
 362
 363 /* ------------------------------------------------------------------------ */
 364
 365
 366 static void msp_wake_thread(struct i2c_client *client)
 367 {
 368         struct msp_state *state = i2c_get_clientdata(client);
 369
 370         if (NULL == state->kthread)
 371                 return;
 372         msp_set_mute(client);
 373         state->watch_stereo = 0;
 374         state->restart = 1;
 375         wake_up_interruptible(&state->wq);
 376 }
 377
 378 int msp_sleep(struct msp_state *state, int timeout)
 379 {
 380         DECLARE_WAITQUEUE(wait, current);
 381
 382         add_wait_queue(&state->wq, &wait);
 383         if (!kthread_should_stop()) {
 384                 if (timeout < 0) {
 385                         set_current_state(TASK_INTERRUPTIBLE);
 386                         schedule();
 387                 } else {
 388                         schedule_timeout_interruptible
 389                                                 (msecs_to_jiffies(timeout));
 390                 }
 391         }
 392
 393         remove_wait_queue(&state->wq, &wait);
 394         try_to_freeze();
 395         return state->restart;
 396 }
 397
 398 /* ------------------------------------------------------------------------ */
 399
 400 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
 401 {
 402         int mode = 0;
 403
 404         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
 405                 mode |= VIDEO_SOUND_STEREO;
 406         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
 407                 mode |= VIDEO_SOUND_LANG2;
 408         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
 409                 mode |= VIDEO_SOUND_LANG1;
 410         if (mode == 0)
 411                 mode |= VIDEO_SOUND_MONO;
 412         return mode;
 413 }
 414
 415 static int msp_mode_v4l1_to_v4l2(int mode)
 416 {
 417         if (mode & VIDEO_SOUND_STEREO)
 418                 return V4L2_TUNER_MODE_STEREO;
 419         if (mode & VIDEO_SOUND_LANG2)
 420                 return V4L2_TUNER_MODE_LANG2;
 421         if (mode & VIDEO_SOUND_LANG1)
 422                 return V4L2_TUNER_MODE_LANG1;
 423         return V4L2_TUNER_MODE_MONO;
 424 }
 425
 426 static void msp_any_detect_stereo(struct i2c_client *client)
 427 {
 428         struct msp_state *state  = i2c_get_clientdata(client);
 429
 430         switch (state->opmode) {
 431         case OPMODE_MANUAL:
 432         case OPMODE_AUTODETECT:
 433                 autodetect_stereo(client);
 434                 break;
 435         case OPMODE_AUTOSELECT:
 436                 msp34xxg_detect_stereo(client);
 437                 break;
 438         }
 439 }
 440
 441 static struct v4l2_queryctrl msp_qctrl[] = {
 442         {
 443                 .id            = V4L2_CID_AUDIO_VOLUME,
 444                 .name          = "Volume",
 445                 .minimum       = 0,
 446                 .maximum       = 65535,
 447                 .step          = 65535/100,
 448                 .default_value = 58880,
 449                 .flags         = 0,
 450                 .type          = V4L2_CTRL_TYPE_INTEGER,
 451         },{
 452                 .id            = V4L2_CID_AUDIO_BALANCE,
 453                 .name          = "Balance",
 454                 .minimum       = 0,
 455                 .maximum       = 65535,
 456                 .step          = 65535/100,
 457                 .default_value = 32768,
 458                 .flags         = 0,
 459                 .type          = V4L2_CTRL_TYPE_INTEGER,
 460         },{
 461                 .id            = V4L2_CID_AUDIO_MUTE,
 462                 .name          = "Mute",
 463                 .minimum       = 0,
 464                 .maximum       = 1,
 465                 .step          = 1,
 466                 .default_value = 1,
 467                 .flags         = 0,
 468                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 469         },{
 470                 .id            = V4L2_CID_AUDIO_BASS,
 471                 .name          = "Bass",
 472                 .minimum       = 0,
 473                 .maximum       = 65535,
 474                 .step          = 65535/100,
 475                 .default_value = 32768,
 476                 .type          = V4L2_CTRL_TYPE_INTEGER,
 477         },{
 478                 .id            = V4L2_CID_AUDIO_TREBLE,
 479                 .name          = "Treble",
 480                 .minimum       = 0,
 481                 .maximum       = 65535,
 482                 .step          = 65535/100,
 483                 .default_value = 32768,
 484                 .type          = V4L2_CTRL_TYPE_INTEGER,
 485         },
 486 };
 487
 488
 489 static void msp_any_set_audmode(struct i2c_client *client, int audmode)
 490 {
 491         struct msp_state *state = i2c_get_clientdata(client);
 492
 493         switch (state->opmode) {
 494         case OPMODE_MANUAL:
 495         case OPMODE_AUTODETECT:
 496                 state->watch_stereo = 0;
 497                 msp3400c_setstereo(client, audmode);
 498                 break;
 499         case OPMODE_AUTOSELECT:
 500                 msp34xxg_set_audmode(client, audmode);
 501                 break;
 502         }
 503 }
 504
 505 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 506 {
 507         struct msp_state *state = i2c_get_clientdata(client);
 508
 509         switch (ctrl->id) {
 510         case V4L2_CID_AUDIO_MUTE:
 511                 ctrl->value = state->muted;
 512                 break;
 513
 514         case V4L2_CID_AUDIO_BALANCE:
 515                 ctrl->value = state->balance;
 516                 break;
 517
 518         case V4L2_CID_AUDIO_BASS:
 519                 ctrl->value = state->bass;
 520                 break;
 521
 522         case V4L2_CID_AUDIO_TREBLE:
 523                 ctrl->value = state->treble;
 524                 break;
 525
 526         case V4L2_CID_AUDIO_VOLUME:
 527                 ctrl->value = state->volume;
 528                 break;
 529
 530         default:
 531                 return -EINVAL;
 532         }
 533         return 0;
 534 }
 535
 536 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 537 {
 538         struct msp_state *state = i2c_get_clientdata(client);
 539
 540         switch (ctrl->id) {
 541         case V4L2_CID_AUDIO_MUTE:
 542                 if (ctrl->value < 0 || ctrl->value >= 2)
 543                         return -ERANGE;
 544                 state->muted = ctrl->value;
 545                 break;
 546
 547         case V4L2_CID_AUDIO_BASS:
 548                 state->bass = ctrl->value;
 549                 break;
 550
 551         case V4L2_CID_AUDIO_TREBLE:
 552                 state->treble = ctrl->value;
 553                 break;
 554
 555         case V4L2_CID_AUDIO_BALANCE:
 556                 state->balance = ctrl->value;
 557                 break;
 558
 559         case V4L2_CID_AUDIO_VOLUME:
 560                 state->volume = ctrl->value;
 561                 if (state->volume == 0)
 562                         state->balance = 32768;
 563                 break;
 564
 565         default:
 566                 return -EINVAL;
 567         }
 568         msp_set_audio(client);
 569         return 0;
 570 }
 571
 572 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 573 {
 574         struct msp_state *state = i2c_get_clientdata(client);
 575         u16 *sarg = arg;
 576         int scart = 0;
 577
 578         if (debug >= 2)
 579                 v4l_i2c_print_ioctl(client, cmd);
 580
 581         switch (cmd) {
 582         case AUDC_SET_INPUT:
 583                 if (*sarg == state->input)
 584                         break;
 585                 state->input = *sarg;
 586                 switch (*sarg) {
 587                 case AUDIO_RADIO:
 588                         /* Hauppauge uses IN2 for the radio */
 589                         state->mode = MSP_MODE_FM_RADIO;
 590                         scart       = SCART_IN2;
 591                         break;
 592                 case AUDIO_EXTERN_1:
 593                         /* IN1 is often used for external input ... */
 594                         state->mode = MSP_MODE_EXTERN;
 595                         scart       = SCART_IN1;
 596                         break;
 597                 case AUDIO_EXTERN_2:
 598                         /* ... sometimes it is IN2 through ;) */
 599                         state->mode = MSP_MODE_EXTERN;
 600                         scart       = SCART_IN2;
 601                         break;
 602                 case AUDIO_TUNER:
 603                         state->mode = -1;
 604                         break;
 605                 default:
 606                         if (*sarg & AUDIO_MUTE)
 607                                 msp_set_scart(client, SCART_MUTE, 0);
 608                         break;
 609                 }
 610                 if (scart) {
 611                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 612                         state->audmode = V4L2_TUNER_MODE_STEREO;
 613                         msp_set_scart(client, scart, 0);
 614                         msp_write_dsp(client, 0x000d, 0x1900);
 615                         if (state->opmode != OPMODE_AUTOSELECT)
 616                                 msp3400c_setstereo(client, state->audmode);
 617                 }
 618                 msp_wake_thread(client);
 619                 break;
 620
 621         case AUDC_SET_RADIO:
 622                 state->norm = VIDEO_MODE_RADIO;
 623                 v4l_dbg(1, client, "switching to radio mode\n");
 624                 state->watch_stereo = 0;
 625                 switch (state->opmode) {
 626                 case OPMODE_MANUAL:
 627                         /* set msp3400 to FM radio mode */
 628                         msp3400c_setmode(client, MSP_MODE_FM_RADIO);
 629                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),
 630                                             MSP_CARRIER(10.7));
 631                         msp_set_audio(client);
 632                         break;
 633                 case OPMODE_AUTODETECT:
 634                 case OPMODE_AUTOSELECT:
 635                         /* the thread will do for us */
 636                         msp_wake_thread(client);
 637                         break;
 638                 }
 639                 break;
 640
 641         /* --- v4l ioctls --- */
 642         /* take care: bttv does userspace copying, we'll get a
 643            kernel pointer here... */
 644         case VIDIOCGAUDIO:
 645         {
 646                 struct video_audio *va = arg;
 647
 648                 va->flags |= VIDEO_AUDIO_VOLUME |
 649                         VIDEO_AUDIO_BASS |
 650                         VIDEO_AUDIO_TREBLE |
 651                         VIDEO_AUDIO_MUTABLE;
 652                 if (state->muted)
 653                         va->flags |= VIDEO_AUDIO_MUTE;
 654
 655                 if (state->muted)
 656                         va->flags |= VIDEO_AUDIO_MUTE;
 657                 va->volume = state->volume;
 658                 va->balance = state->volume ? state->balance : 32768;
 659                 va->bass = state->bass;
 660                 va->treble = state->treble;
 661
 662                 msp_any_detect_stereo(client);
 663                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
 664                 break;
 665         }
 666
 667         case VIDIOCSAUDIO:
 668         {
 669                 struct video_audio *va = arg;
 670
 671                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
 672                 state->volume = va->volume;
 673                 state->balance = va->balance;
 674                 state->bass = va->bass;
 675                 state->treble = va->treble;
 676                 msp_set_audio(client);
 677
 678                 if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO)
 679                         msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
 680                 break;
 681         }
 682
 683         case VIDIOCSCHAN:
 684         {
 685                 struct video_channel *vc = arg;
 686
 687                 state->norm = vc->norm;
 688                 msp_wake_thread(client);
 689                 break;
 690         }
 691
 692         case VIDIOCSFREQ:
 693         case VIDIOC_S_FREQUENCY:
 694         {
 695                 /* new channel -- kick audio carrier scan */
 696                 msp_wake_thread(client);
 697                 break;
 698         }
 699
 700         /* msp34xx specific */
 701         case MSP_SET_MATRIX:
 702         {
 703                 struct msp_matrix *mspm = arg;
 704
 705                 msp_set_scart(client, mspm->input, mspm->output);
 706                 break;
 707         }
 708
 709         /* --- v4l2 ioctls --- */
 710         case VIDIOC_S_STD:
 711         {
 712                 v4l2_std_id *id = arg;
 713
 714                 /*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/
 715                 if (*id & V4L2_STD_PAL) {
 716                         state->norm = VIDEO_MODE_PAL;
 717                 } else if (*id & V4L2_STD_SECAM) {
 718                         state->norm = VIDEO_MODE_SECAM;
 719                 } else {
 720                         state->norm = VIDEO_MODE_NTSC;
 721                 }
 722
 723                 msp_wake_thread(client);
 724                 return 0;
 725         }
 726
 727         case VIDIOC_ENUMINPUT:
 728         {
 729                 struct v4l2_input *i = arg;
 730
 731                 if (i->index != 0)
 732                         return -EINVAL;
 733
 734                 i->type = V4L2_INPUT_TYPE_TUNER;
 735                 switch (i->index) {
 736                 case AUDIO_RADIO:
 737                         strcpy(i->name, "Radio");
 738                         break;
 739                 case AUDIO_EXTERN_1:
 740                         strcpy(i->name, "Extern 1");
 741                         break;
 742                 case AUDIO_EXTERN_2:
 743                         strcpy(i->name, "Extern 2");
 744                         break;
 745                 case AUDIO_TUNER:
 746                         strcpy(i->name, "Television");
 747                         break;
 748                 default:
 749                         return -EINVAL;
 750                 }
 751                 return 0;
 752         }
 753
 754         case VIDIOC_G_AUDIO:
 755         {
 756                 struct v4l2_audio *a = arg;
 757
 758                 memset(a, 0, sizeof(*a));
 759
 760                 switch (a->index) {
 761                 case AUDIO_RADIO:
 762                         strcpy(a->name, "Radio");
 763                         break;
 764                 case AUDIO_EXTERN_1:
 765                         strcpy(a->name, "Extern 1");
 766                         break;
 767                 case AUDIO_EXTERN_2:
 768                         strcpy(a->name, "Extern 2");
 769                         break;
 770                 case AUDIO_TUNER:
 771                         strcpy(a->name, "Television");
 772                         break;
 773                 default:
 774                         return -EINVAL;
 775                 }
 776
 777                 msp_any_detect_stereo(client);
 778                 if (state->audmode == V4L2_TUNER_MODE_STEREO) {
 779                         a->capability = V4L2_AUDCAP_STEREO;
 780                 }
 781
 782                 break;
 783         }
 784
 785         case VIDIOC_S_AUDIO:
 786         {
 787                 struct v4l2_audio *sarg = arg;
 788
 789                 switch (sarg->index) {
 790                 case AUDIO_RADIO:
 791                         /* Hauppauge uses IN2 for the radio */
 792                         state->mode = MSP_MODE_FM_RADIO;
 793                         scart       = SCART_IN2;
 794                         break;
 795                 case AUDIO_EXTERN_1:
 796                         /* IN1 is often used for external input ... */
 797                         state->mode = MSP_MODE_EXTERN;
 798                         scart       = SCART_IN1;
 799                         break;
 800                 case AUDIO_EXTERN_2:
 801                         /* ... sometimes it is IN2 through ;) */
 802                         state->mode = MSP_MODE_EXTERN;
 803                         scart       = SCART_IN2;
 804                         break;
 805                 case AUDIO_TUNER:
 806                         state->mode = -1;
 807                         break;
 808                 }
 809                 if (scart) {
 810                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 811                         state->audmode = V4L2_TUNER_MODE_STEREO;
 812                         msp_set_scart(client, scart, 0);
 813                         msp_write_dsp(client, 0x000d, 0x1900);
 814                 }
 815                 if (sarg->capability == V4L2_AUDCAP_STEREO) {
 816                         state->audmode = V4L2_TUNER_MODE_STEREO;
 817                 } else {
 818                         state->audmode &= ~V4L2_TUNER_MODE_STEREO;
 819                 }
 820                 msp_any_set_audmode(client, state->audmode);
 821                 msp_wake_thread(client);
 822                 break;
 823         }
 824
 825         case VIDIOC_G_TUNER:
 826         {
 827                 struct v4l2_tuner *vt = arg;
 828
 829                 msp_any_detect_stereo(client);
 830                 vt->audmode    = state->audmode;
 831                 vt->rxsubchans = state->rxsubchans;
 832                 vt->capability = V4L2_TUNER_CAP_STEREO |
 833                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 834                 break;
 835         }
 836
 837         case VIDIOC_S_TUNER:
 838         {
 839                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 840
 841                 /* only set audmode */
 842                 if (vt->audmode != -1 && vt->audmode != 0)
 843                         msp_any_set_audmode(client, vt->audmode);
 844                 break;
 845         }
 846
 847         case VIDIOC_G_AUDOUT:
 848         {
 849                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 850                 int idx = a->index;
 851
 852                 memset(a, 0, sizeof(*a));
 853
 854                 switch (idx) {
 855                 case 0:
 856                         strcpy(a->name, "Scart1 Out");
 857                         break;
 858                 case 1:
 859                         strcpy(a->name, "Scart2 Out");
 860                         break;
 861                 case 2:
 862                         strcpy(a->name, "I2S Out");
 863                         break;
 864                 default:
 865                         return -EINVAL;
 866                 }
 867                 break;
 868
 869         }
 870
 871         case VIDIOC_S_AUDOUT:
 872         {
 873                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 874
 875                 if (a->index < 0 || a->index > 2)
 876                         return -EINVAL;
 877
 878                 v4l_dbg(1, client, "Setting audio out on msp34xx to input %i\n", a->index);
 879                 msp_set_scart(client, state->in_scart, a->index + 1);
 880
 881                 break;
 882         }
 883
 884         case VIDIOC_INT_I2S_CLOCK_FREQ:
 885         {
 886                 u32 *a = (u32 *)arg;
 887
 888                 v4l_dbg(1, client, "Setting I2S speed to %d\n", *a);
 889
 890                 switch (*a) {
 891                         case 1024000:
 892                                 state->i2s_mode = 0;
 893                                 break;
 894                         case 2048000:
 895                                 state->i2s_mode = 1;
 896                                 break;
 897                         default:
 898                                 return -EINVAL;
 899                 }
 900                 break;
 901         }
 902
 903         case VIDIOC_QUERYCTRL:
 904         {
 905                 struct v4l2_queryctrl *qc = arg;
 906                 int i;
 907
 908                 for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++)
 909                         if (qc->id && qc->id == msp_qctrl[i].id) {
 910                                 memcpy(qc, &msp_qctrl[i], sizeof(*qc));
 911                                 return 0;
 912                         }
 913                 return -EINVAL;
 914         }
 915
 916         case VIDIOC_G_CTRL:
 917                 return msp_get_ctrl(client, arg);
 918
 919         case VIDIOC_S_CTRL:
 920                 return msp_set_ctrl(client, arg);
 921
 922         case VIDIOC_LOG_STATUS:
 923                 msp_any_detect_stereo(client);
 924                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 925                                 client->name, state->rev1, state->rev2);
 926                 v4l_info(client, "Audio:  volume %d balance %d bass %d treble %d%s\n",
 927                                 state->volume, state->balance,
 928                                 state->bass, state->treble,
 929                                 state->muted ? " (muted)" : "");
 930                 v4l_info(client, "Mode:   %s (%s%s)\n", msp_standard_mode_name(state->mode),
 931                         (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 932                         (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 933                 v4l_info(client, "ACB:    0x%04x\n", state->acb);
 934                 break;
 935
 936         default:
 937                 /* nothing */
 938                 break;
 939         }
 940         return 0;
 941 }
 942
 943 static int msp_suspend(struct device * dev, pm_message_t state)
 944 {
 945         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 946
 947         v4l_dbg(1, client, "suspend\n");
 948         msp_reset(client);
 949         return 0;
 950 }
 951
 952 static int msp_resume(struct device * dev)
 953 {
 954         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 955
 956         v4l_dbg(1, client, "resume\n");
 957         msp_wake_thread(client);
 958         return 0;
 959 }
 960
 961 /* ----------------------------------------------------------------------- */
 962
 963 static struct i2c_driver i2c_driver;
 964
 965 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 966 {
 967         struct i2c_client *client;
 968         struct msp_state *state;
 969         int (*thread_func)(void *data) = NULL;
 970
 971         client = kmalloc(sizeof(*client), GFP_KERNEL);
 972         if (client == NULL)
 973                 return -ENOMEM;
 974         memset(client, 0, sizeof(*client));
 975         client->addr = address;
 976         client->adapter = adapter;
 977         client->driver = &i2c_driver;
 978         client->flags = I2C_CLIENT_ALLOW_USE;
 979         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
 980
 981         if (msp_reset(client) == -1) {
 982                 v4l_dbg(1, client, "msp3400 not found\n");
 983                 kfree(client);
 984                 return -1;
 985         }
 986
 987         state = kmalloc(sizeof(*state), GFP_KERNEL);
 988         if (state == NULL) {
 989                 kfree(client);
 990                 return -ENOMEM;
 991         }
 992         i2c_set_clientdata(client, state);
 993
 994         memset(state, 0, sizeof(*state));
 995         state->norm = VIDEO_MODE_NTSC;
 996         state->volume = 58880;  /* 0db gain */
 997         state->balance = 32768; /* 0db gain */
 998         state->bass = 32768;
 999         state->treble = 32768;
1000         state->input = -1;
1001         state->muted = 0;
1002         state->i2s_mode = 0;
1003         init_waitqueue_head(&state->wq);
1004
1005         state->rev1 = msp_read_dsp(client, 0x1e);
1006         if (state->rev1 != -1)
1007                 state->rev2 = msp_read_dsp(client, 0x1f);
1008         v4l_dbg(1, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
1009         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
1010                 v4l_dbg(1, client, "not an msp3400 (cannot read chip version)\n");
1011                 kfree(state);
1012                 kfree(client);
1013                 return -1;
1014         }
1015
1016         msp_set_audio(client);
1017
1018         snprintf(client->name, sizeof(client->name), "MSP%c4%02d%c-%c%d",
1019                  ((state->rev1 >> 4) & 0x0f) + '3',
1020                  (state->rev2 >> 8) & 0xff,
1021                  (state->rev1 & 0x0f) + '@',
1022                  ((state->rev1 >> 8) & 0xff) + '@',
1023                  state->rev2 & 0x1f);
1024
1025         state->opmode = opmode;
1026         if (state->opmode == OPMODE_AUTO) {
1027                 /* MSP revision G and up have both autodetect and autoselect */
1028                 if ((state->rev1 & 0x0f) >= 'G'-'@')
1029                         state->opmode = OPMODE_AUTOSELECT;
1030                 /* MSP revision D and up have autodetect */
1031                 else if ((state->rev1 & 0x0f) >= 'D'-'@')
1032                         state->opmode = OPMODE_AUTODETECT;
1033                 else
1034                         state->opmode = OPMODE_MANUAL;
1035         }
1036
1037         /* hello world :-) */
1038         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1039         v4l_info(client, "%s ", client->name);
1040         if (HAVE_NICAM(state) && HAVE_RADIO(state))
1041                 printk("supports nicam and radio, ");
1042         else if (HAVE_NICAM(state))
1043                 printk("supports nicam, ");
1044         else if (HAVE_RADIO(state))
1045                 printk("supports radio, ");
1046         printk("mode is ");
1047
1048         /* version-specific initialization */
1049         switch (state->opmode) {
1050         case OPMODE_MANUAL:
1051                 printk("manual");
1052                 thread_func = msp3400c_thread;
1053                 break;
1054         case OPMODE_AUTODETECT:
1055                 printk("autodetect");
1056                 thread_func = msp3410d_thread;
1057                 break;
1058         case OPMODE_AUTOSELECT:
1059                 printk("autodetect and autoselect");
1060                 thread_func = msp34xxg_thread;
1061                 break;
1062         }
1063         printk("\n");
1064
1065         /* startup control thread if needed */
1066         if (thread_func) {
1067                 state->kthread = kthread_run(thread_func, client, "msp34xx");
1068
1069                 if (state->kthread == NULL)
1070                         v4l_warn(client, "kernel_thread() failed\n");
1071                 msp_wake_thread(client);
1072         }
1073
1074         /* done */
1075         i2c_attach_client(client);
1076
1077         return 0;
1078 }
1079
1080 static int msp_probe(struct i2c_adapter *adapter)
1081 {
1082         if (adapter->class & I2C_CLASS_TV_ANALOG)
1083                 return i2c_probe(adapter, &addr_data, msp_attach);
1084         return 0;
1085 }
1086
1087 static int msp_detach(struct i2c_client *client)
1088 {
1089         struct msp_state *state = i2c_get_clientdata(client);
1090         int err;
1091
1092         /* shutdown control thread */
1093         if (state->kthread) {
1094                 state->restart = 1;
1095                 kthread_stop(state->kthread);
1096         }
1097         msp_reset(client);
1098
1099         err = i2c_detach_client(client);
1100         if (err) {
1101                 return err;
1102         }
1103
1104         kfree(state);
1105         kfree(client);
1106         return 0;
1107 }
1108
1109 /* ----------------------------------------------------------------------- */
1110
1111 /* i2c implementation */
1112 static struct i2c_driver i2c_driver = {
1113         .id             = I2C_DRIVERID_MSP3400,
1114         .attach_adapter = msp_probe,
1115         .detach_client  = msp_detach,
1116         .command        = msp_command,
1117         .driver = {
1118                 .name    = "msp3400",
1119                 .suspend = msp_suspend,
1120                 .resume  = msp_resume,
1121         },
1122         .owner          = THIS_MODULE,
1123 };
1124
1125 static int __init msp3400_init_module(void)
1126 {
1127         return i2c_add_driver(&i2c_driver);
1128 }
1129
1130 static void __exit msp3400_cleanup_module(void)
1131 {
1132         i2c_del_driver(&i2c_driver);
1133 }
1134
1135 module_init(msp3400_init_module);
1136 module_exit(msp3400_cleanup_module);
1137
1138 /*
1139  * Overrides for Emacs so that we follow Linus's tabbing style.
1140  * ---------------------------------------------------------------------------
1141  * Local variables:
1142  * c-basic-offset: 8
1143  * End:
1144  */