git.oblomov.eu 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/tvaudio.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 msp_debug;           /* msp_debug output */
  70 int msp_once;            /* no continous stereo monitoring */
  71 int msp_amsound;         /* hard-wire AM sound at 6.5 Hz (france),
  72                             the autoscan seems work well only with FM... */
  73 int msp_standard = 1;    /* Override auto detect of audio msp_standard, if needed. */
  74 int msp_dolby;
  75
  76 int msp_stereo_thresh = 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_named(once,msp_once,                      bool, 0644);
  84 module_param_named(debug,msp_debug,                    int,  0644);
  85 module_param_named(stereo_threshold,msp_stereo_thresh, int,  0644);
  86 module_param_named(standard,msp_standard,              int,  0644);
  87 module_param_named(amsound,msp_amsound,                bool, 0644);
  88 module_param_named(dolby,msp_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, msp_debug, 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, msp_debug, 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, msp_debug, 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     IN3     IN4     IN1_DA  IN2_DA  MONO    MUTE   */
 249         /* SCART DSP Input select */
 250        { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1,     -1,     0x0100, 0x0320 },
 251         /* SCART1 Output select */
 252        { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
 253         /* SCART2 Output select */
 254        { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
 255 };
 256
 257 static char *scart_names[] = {
 258        "in1", "in2", "in3", "in4", "in1 da", "in2 da", "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 >= 0 && in <= 7 && out >= 0 && out <= 2) {
 268                 if (-1 == scarts[out][in + 1])
 269                         return;
 270
 271                 state->acb &= ~scarts[out][0];
 272                 state->acb |=  scarts[out][in + 1];
 273         } else
 274                 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
 275
 276         v4l_dbg(1, msp_debug, 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         struct msp_state *state = i2c_get_clientdata(client);
 287
 288         v4l_dbg(1, msp_debug, client, "mute audio\n");
 289         msp_write_dsp(client, 0x0000, 0);
 290         msp_write_dsp(client, 0x0007, 1);
 291         if (state->has_scart2_out_volume)
 292                 msp_write_dsp(client, 0x0040, 1);
 293         if (state->has_headphones)
 294                 msp_write_dsp(client, 0x0006, 0);
 295 }
 296
 297 void msp_set_audio(struct i2c_client *client)
 298 {
 299         struct msp_state *state = i2c_get_clientdata(client);
 300         int bal = 0, bass, treble, loudness;
 301         int val = 0;
 302
 303         if (!state->muted)
 304                 val = (state->volume * 0x7f / 65535) << 8;
 305
 306         v4l_dbg(1, msp_debug, client, "mute=%s volume=%d\n",
 307                 state->muted ? "on" : "off", state->volume);
 308
 309         msp_write_dsp(client, 0x0000, val);
 310         msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
 311         if (state->has_scart2_out_volume)
 312                 msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
 313         if (state->has_headphones)
 314                 msp_write_dsp(client, 0x0006, val);
 315         if (!state->has_sound_processing)
 316                 return;
 317
 318         if (val)
 319                 bal = (u8)((state->balance / 256) - 128);
 320         bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
 321         treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
 322         loudness = state->loudness ? ((5 * 4) << 8) : 0;
 323
 324         v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
 325                 state->balance, state->bass, state->treble, state->loudness);
 326
 327         msp_write_dsp(client, 0x0001, bal << 8);
 328         msp_write_dsp(client, 0x0002, bass);
 329         msp_write_dsp(client, 0x0003, treble);
 330         msp_write_dsp(client, 0x0004, loudness);
 331         if (!state->has_headphones)
 332                 return;
 333         msp_write_dsp(client, 0x0030, bal << 8);
 334         msp_write_dsp(client, 0x0031, bass);
 335         msp_write_dsp(client, 0x0032, treble);
 336         msp_write_dsp(client, 0x0033, loudness);
 337 }
 338
 339 /* ------------------------------------------------------------------------ */
 340
 341
 342 static void msp_wake_thread(struct i2c_client *client)
 343 {
 344         struct msp_state *state = i2c_get_clientdata(client);
 345
 346         if (NULL == state->kthread)
 347                 return;
 348         msp_set_mute(client);
 349         state->watch_stereo = 0;
 350         state->restart = 1;
 351         wake_up_interruptible(&state->wq);
 352 }
 353
 354 int msp_sleep(struct msp_state *state, int timeout)
 355 {
 356         DECLARE_WAITQUEUE(wait, current);
 357
 358         add_wait_queue(&state->wq, &wait);
 359         if (!kthread_should_stop()) {
 360                 if (timeout < 0) {
 361                         set_current_state(TASK_INTERRUPTIBLE);
 362                         schedule();
 363                 } else {
 364                         schedule_timeout_interruptible
 365                                                 (msecs_to_jiffies(timeout));
 366                 }
 367         }
 368
 369         remove_wait_queue(&state->wq, &wait);
 370         try_to_freeze();
 371         return state->restart;
 372 }
 373
 374 /* ------------------------------------------------------------------------ */
 375
 376 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
 377 {
 378         int mode = 0;
 379
 380         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
 381                 mode |= VIDEO_SOUND_STEREO;
 382         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
 383                 mode |= VIDEO_SOUND_LANG2 | VIDEO_SOUND_STEREO;
 384         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
 385                 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_STEREO;
 386         if (mode == 0)
 387                 mode |= VIDEO_SOUND_MONO;
 388         return mode;
 389 }
 390
 391 static int msp_mode_v4l1_to_v4l2(int mode)
 392 {
 393         if (mode & VIDEO_SOUND_STEREO)
 394                 return V4L2_TUNER_MODE_STEREO;
 395         if (mode & VIDEO_SOUND_LANG2)
 396                 return V4L2_TUNER_MODE_LANG2;
 397         if (mode & VIDEO_SOUND_LANG1)
 398                 return V4L2_TUNER_MODE_LANG1;
 399         return V4L2_TUNER_MODE_MONO;
 400 }
 401
 402 static struct v4l2_queryctrl msp_qctrl_std[] = {
 403         {
 404                 .id            = V4L2_CID_AUDIO_VOLUME,
 405                 .name          = "Volume",
 406                 .minimum       = 0,
 407                 .maximum       = 65535,
 408                 .step          = 65535/100,
 409                 .default_value = 58880,
 410                 .flags         = 0,
 411                 .type          = V4L2_CTRL_TYPE_INTEGER,
 412         },{
 413                 .id            = V4L2_CID_AUDIO_MUTE,
 414                 .name          = "Mute",
 415                 .minimum       = 0,
 416                 .maximum       = 1,
 417                 .step          = 1,
 418                 .default_value = 1,
 419                 .flags         = 0,
 420                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 421         },
 422 };
 423
 424 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
 425         {
 426                 .id            = V4L2_CID_AUDIO_BALANCE,
 427                 .name          = "Balance",
 428                 .minimum       = 0,
 429                 .maximum       = 65535,
 430                 .step          = 65535/100,
 431                 .default_value = 32768,
 432                 .flags         = 0,
 433                 .type          = V4L2_CTRL_TYPE_INTEGER,
 434         },{
 435                 .id            = V4L2_CID_AUDIO_BASS,
 436                 .name          = "Bass",
 437                 .minimum       = 0,
 438                 .maximum       = 65535,
 439                 .step          = 65535/100,
 440                 .default_value = 32768,
 441                 .type          = V4L2_CTRL_TYPE_INTEGER,
 442         },{
 443                 .id            = V4L2_CID_AUDIO_TREBLE,
 444                 .name          = "Treble",
 445                 .minimum       = 0,
 446                 .maximum       = 65535,
 447                 .step          = 65535/100,
 448                 .default_value = 32768,
 449                 .type          = V4L2_CTRL_TYPE_INTEGER,
 450         },{
 451                 .id            = V4L2_CID_AUDIO_LOUDNESS,
 452                 .name          = "Loudness",
 453                 .minimum       = 0,
 454                 .maximum       = 1,
 455                 .step          = 1,
 456                 .default_value = 1,
 457                 .flags         = 0,
 458                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 459         },
 460 };
 461
 462
 463 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 464 {
 465         struct msp_state *state = i2c_get_clientdata(client);
 466
 467         switch (ctrl->id) {
 468         case V4L2_CID_AUDIO_VOLUME:
 469                 ctrl->value = state->volume;
 470                 break;
 471
 472         case V4L2_CID_AUDIO_MUTE:
 473                 ctrl->value = state->muted;
 474                 break;
 475
 476         case V4L2_CID_AUDIO_BALANCE:
 477                 if (!state->has_sound_processing)
 478                         return -EINVAL;
 479                 ctrl->value = state->balance;
 480                 break;
 481
 482         case V4L2_CID_AUDIO_BASS:
 483                 if (!state->has_sound_processing)
 484                         return -EINVAL;
 485                 ctrl->value = state->bass;
 486                 break;
 487
 488         case V4L2_CID_AUDIO_TREBLE:
 489                 if (!state->has_sound_processing)
 490                         return -EINVAL;
 491                 ctrl->value = state->treble;
 492                 break;
 493
 494         case V4L2_CID_AUDIO_LOUDNESS:
 495                 if (!state->has_sound_processing)
 496                         return -EINVAL;
 497                 ctrl->value = state->loudness;
 498                 break;
 499
 500         default:
 501                 return -EINVAL;
 502         }
 503         return 0;
 504 }
 505
 506 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 507 {
 508         struct msp_state *state = i2c_get_clientdata(client);
 509
 510         switch (ctrl->id) {
 511         case V4L2_CID_AUDIO_VOLUME:
 512                 state->volume = ctrl->value;
 513                 if (state->volume == 0)
 514                         state->balance = 32768;
 515                 break;
 516
 517         case V4L2_CID_AUDIO_MUTE:
 518                 if (ctrl->value < 0 || ctrl->value >= 2)
 519                         return -ERANGE;
 520                 state->muted = ctrl->value;
 521                 break;
 522
 523         case V4L2_CID_AUDIO_BASS:
 524                 if (!state->has_sound_processing)
 525                         return -EINVAL;
 526                 state->bass = ctrl->value;
 527                 break;
 528
 529         case V4L2_CID_AUDIO_TREBLE:
 530                 if (!state->has_sound_processing)
 531                         return -EINVAL;
 532                 state->treble = ctrl->value;
 533                 break;
 534
 535         case V4L2_CID_AUDIO_LOUDNESS:
 536                 if (!state->has_sound_processing)
 537                         return -EINVAL;
 538                 state->loudness = ctrl->value;
 539                 break;
 540
 541         case V4L2_CID_AUDIO_BALANCE:
 542                 if (!state->has_sound_processing)
 543                         return -EINVAL;
 544                 state->balance = ctrl->value;
 545                 break;
 546
 547         default:
 548                 return -EINVAL;
 549         }
 550         msp_set_audio(client);
 551         return 0;
 552 }
 553
 554 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 555 {
 556         struct msp_state *state = i2c_get_clientdata(client);
 557         int scart = -1;
 558
 559         if (msp_debug >= 2)
 560                 v4l_i2c_print_ioctl(client, cmd);
 561
 562         switch (cmd) {
 563         case AUDC_SET_RADIO:
 564                 if (state->radio)
 565                         return 0;
 566                 state->radio = 1;
 567                 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
 568                 state->watch_stereo = 0;
 569                 switch (state->opmode) {
 570                 case OPMODE_MANUAL:
 571                         /* set msp3400 to FM radio mode */
 572                         msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
 573                         msp3400c_set_carrier(client, MSP_CARRIER(10.7),
 574                                             MSP_CARRIER(10.7));
 575                         msp_set_audio(client);
 576                         break;
 577                 case OPMODE_AUTODETECT:
 578                 case OPMODE_AUTOSELECT:
 579                         /* the thread will do for us */
 580                         msp_wake_thread(client);
 581                         break;
 582                 }
 583                 break;
 584
 585         /* --- v4l ioctls --- */
 586         /* take care: bttv does userspace copying, we'll get a
 587            kernel pointer here... */
 588         case VIDIOCGAUDIO:
 589         {
 590                 struct video_audio *va = arg;
 591
 592                 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
 593                 if (state->has_sound_processing)
 594                         va->flags |= VIDEO_AUDIO_BALANCE |
 595                                 VIDEO_AUDIO_BASS |
 596                                 VIDEO_AUDIO_TREBLE;
 597                 if (state->muted)
 598                         va->flags |= VIDEO_AUDIO_MUTE;
 599                 va->volume = state->volume;
 600                 va->balance = state->volume ? state->balance : 32768;
 601                 va->bass = state->bass;
 602                 va->treble = state->treble;
 603
 604                 if (state->radio)
 605                         break;
 606                 if (state->opmode == OPMODE_AUTOSELECT)
 607                         msp_detect_stereo(client);
 608                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
 609                 break;
 610         }
 611
 612         case VIDIOCSAUDIO:
 613         {
 614                 struct video_audio *va = arg;
 615
 616                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
 617                 state->volume = va->volume;
 618                 state->balance = va->balance;
 619                 state->bass = va->bass;
 620                 state->treble = va->treble;
 621                 msp_set_audio(client);
 622
 623                 if (va->mode != 0 && state->radio == 0) {
 624                         state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
 625                         msp_set_audmode(client);
 626                 }
 627                 break;
 628         }
 629
 630         case VIDIOCSCHAN:
 631         {
 632                 struct video_channel *vc = arg;
 633                 int update = 0;
 634                 v4l2_std_id std;
 635
 636                 if (state->radio)
 637                         update = 1;
 638                 state->radio = 0;
 639                 if (vc->norm == VIDEO_MODE_PAL)
 640                         std = V4L2_STD_PAL;
 641                 else if (vc->norm == VIDEO_MODE_SECAM)
 642                         std = V4L2_STD_SECAM;
 643                 else
 644                         std = V4L2_STD_NTSC;
 645                 if (std != state->v4l2_std) {
 646                         state->v4l2_std = std;
 647                         update = 1;
 648                 }
 649                 if (update)
 650                         msp_wake_thread(client);
 651                 break;
 652         }
 653
 654         case VIDIOCSFREQ:
 655         case VIDIOC_S_FREQUENCY:
 656         {
 657                 /* new channel -- kick audio carrier scan */
 658                 msp_wake_thread(client);
 659                 break;
 660         }
 661
 662         /* msp34xx specific */
 663         case MSP_SET_MATRIX:
 664         {
 665                 struct msp_matrix *mspm = arg;
 666
 667                 msp_set_scart(client, mspm->input - 1, mspm->output);
 668                 break;
 669         }
 670
 671         /* --- v4l2 ioctls --- */
 672         case VIDIOC_S_STD:
 673         {
 674                 v4l2_std_id *id = arg;
 675                 int update = state->radio || state->v4l2_std != *id;
 676
 677                 state->v4l2_std = *id;
 678                 state->radio = 0;
 679                 if (update)
 680                         msp_wake_thread(client);
 681                 return 0;
 682         }
 683
 684         case VIDIOC_S_AUDIO:
 685         {
 686                 struct v4l2_audio *sarg = arg;
 687
 688                 switch (sarg->index) {
 689                 case TVAUDIO_INPUT_RADIO:
 690                         /* Hauppauge uses IN2 for the radio */
 691                         state->mode = MSP_MODE_FM_RADIO;
 692                         scart       = SCART_IN2;
 693                         break;
 694                 case TVAUDIO_INPUT_EXTERN:
 695                         /* IN1 is often used for external input ... */
 696                         state->mode = MSP_MODE_EXTERN;
 697                         scart       = SCART_IN1;
 698                         break;
 699                 case TVAUDIO_INPUT_INTERN:
 700                         /* ... sometimes it is IN2 through ;) */
 701                         state->mode = MSP_MODE_EXTERN;
 702                         scart       = SCART_IN2;
 703                         break;
 704                 case TVAUDIO_INPUT_TUNER:
 705                         state->mode = -1;
 706                         break;
 707                 }
 708                 if (scart >= 0) {
 709                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 710                         msp_set_scart(client, scart, 0);
 711                 }
 712                 msp_set_audmode(client);
 713                 msp_wake_thread(client);
 714                 break;
 715         }
 716
 717         case VIDIOC_G_TUNER:
 718         {
 719                 struct v4l2_tuner *vt = arg;
 720
 721                 if (state->radio)
 722                         break;
 723                 if (state->opmode == OPMODE_AUTOSELECT)
 724                         msp_detect_stereo(client);
 725                 vt->audmode    = state->audmode;
 726                 vt->rxsubchans = state->rxsubchans;
 727                 vt->capability = V4L2_TUNER_CAP_STEREO |
 728                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 729                 break;
 730         }
 731
 732         case VIDIOC_S_TUNER:
 733         {
 734                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 735
 736                 if (state->radio)  /* TODO: add mono/stereo support for radio */
 737                         break;
 738                 state->audmode = vt->audmode;
 739                 /* only set audmode */
 740                 msp_set_audmode(client);
 741                 break;
 742         }
 743
 744         case VIDIOC_G_AUDOUT:
 745         {
 746                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 747                 int idx = a->index;
 748
 749                 memset(a, 0, sizeof(*a));
 750
 751                 switch (idx) {
 752                 case 0:
 753                         strcpy(a->name, "Scart1 Out");
 754                         break;
 755                 case 1:
 756                         strcpy(a->name, "Scart2 Out");
 757                         break;
 758                 case 2:
 759                         strcpy(a->name, "I2S Out");
 760                         break;
 761                 default:
 762                         return -EINVAL;
 763                 }
 764                 break;
 765         }
 766
 767         case VIDIOC_S_AUDOUT:
 768         {
 769                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 770
 771                 if (a->index < 0 || a->index > 2)
 772                         return -EINVAL;
 773
 774                 v4l_dbg(1, msp_debug, client, "Setting audio out on msp34xx to input %i\n", a->index);
 775                 msp_set_scart(client, state->in_scart, a->index + 1);
 776
 777                 break;
 778         }
 779
 780         case VIDIOC_INT_I2S_CLOCK_FREQ:
 781         {
 782                 u32 *a = (u32 *)arg;
 783
 784                 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
 785
 786                 switch (*a) {
 787                         case 1024000:
 788                                 state->i2s_mode = 0;
 789                                 break;
 790                         case 2048000:
 791                                 state->i2s_mode = 1;
 792                                 break;
 793                         default:
 794                                 return -EINVAL;
 795                 }
 796                 break;
 797         }
 798
 799         case VIDIOC_QUERYCTRL:
 800         {
 801                 struct v4l2_queryctrl *qc = arg;
 802                 int i;
 803
 804                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
 805                         if (qc->id && qc->id == msp_qctrl_std[i].id) {
 806                                 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
 807                                 return 0;
 808                         }
 809                 if (!state->has_sound_processing)
 810                         return -EINVAL;
 811                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
 812                         if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
 813                                 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
 814                                 return 0;
 815                         }
 816                 return -EINVAL;
 817         }
 818
 819         case VIDIOC_G_CTRL:
 820                 return msp_get_ctrl(client, arg);
 821
 822         case VIDIOC_S_CTRL:
 823                 return msp_set_ctrl(client, arg);
 824
 825         case VIDIOC_LOG_STATUS:
 826         {
 827                 const char *p;
 828
 829                 if (state->opmode == OPMODE_AUTOSELECT)
 830                         msp_detect_stereo(client);
 831                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 832                                 client->name, state->rev1, state->rev2);
 833                 v4l_info(client, "Audio:    volume %d%s\n",
 834                                 state->volume, state->muted ? " (muted)" : "");
 835                 if (state->has_sound_processing) {
 836                         v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
 837                                         state->balance, state->bass, state->treble,
 838                                         state->loudness ? "on" : "off");
 839                 }
 840                 switch (state->mode) {
 841                 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
 842                 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
 843                 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
 844                 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
 845                 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
 846                 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
 847                 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
 848                 case MSP_MODE_BTSC: p = "BTSC"; break;
 849                 case MSP_MODE_EXTERN: p = "External input"; break;
 850                 default: p = "unknown"; break;
 851                 }
 852                 if (state->opmode == OPMODE_MANUAL) {
 853                         v4l_info(client, "Mode:     %s (%s%s)\n", p,
 854                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 855                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 856                 } else {
 857                         if (state->opmode == OPMODE_AUTODETECT)
 858                                 v4l_info(client, "Mode:     %s\n", p);
 859                         v4l_info(client, "Standard: %s (%s%s)\n",
 860                                 msp_standard_std_name(state->std),
 861                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 862                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 863                 }
 864                 v4l_info(client, "Audmode:  0x%04x\n", state->audmode);
 865                 v4l_info(client, "ACB:      0x%04x\n", state->acb);
 866                 break;
 867         }
 868
 869         default:
 870                 /* unknown */
 871                 return -EINVAL;
 872         }
 873         return 0;
 874 }
 875
 876 static int msp_suspend(struct device * dev, pm_message_t state)
 877 {
 878         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 879
 880         v4l_dbg(1, msp_debug, client, "suspend\n");
 881         msp_reset(client);
 882         return 0;
 883 }
 884
 885 static int msp_resume(struct device * dev)
 886 {
 887         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 888
 889         v4l_dbg(1, msp_debug, client, "resume\n");
 890         msp_wake_thread(client);
 891         return 0;
 892 }
 893
 894 /* ----------------------------------------------------------------------- */
 895
 896 static struct i2c_driver i2c_driver;
 897
 898 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 899 {
 900         struct i2c_client *client;
 901         struct msp_state *state;
 902         int (*thread_func)(void *data) = NULL;
 903         int msp_hard;
 904         int msp_family;
 905         int msp_revision;
 906         int msp_product, msp_prod_hi, msp_prod_lo;
 907         int msp_rom;
 908
 909         client = kmalloc(sizeof(*client), GFP_KERNEL);
 910         if (client == NULL)
 911                 return -ENOMEM;
 912         memset(client, 0, sizeof(*client));
 913         client->addr = address;
 914         client->adapter = adapter;
 915         client->driver = &i2c_driver;
 916         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
 917
 918         if (msp_reset(client) == -1) {
 919                 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
 920                 kfree(client);
 921                 return -1;
 922         }
 923
 924         state = kmalloc(sizeof(*state), GFP_KERNEL);
 925         if (state == NULL) {
 926                 kfree(client);
 927                 return -ENOMEM;
 928         }
 929         i2c_set_clientdata(client, state);
 930
 931         memset(state, 0, sizeof(*state));
 932         state->v4l2_std = V4L2_STD_NTSC;
 933         state->audmode = V4L2_TUNER_MODE_LANG1;
 934         state->volume = 58880;  /* 0db gain */
 935         state->balance = 32768; /* 0db gain */
 936         state->bass = 32768;
 937         state->treble = 32768;
 938         state->loudness = 0;
 939         state->input = -1;
 940         state->muted = 0;
 941         state->i2s_mode = 0;
 942         init_waitqueue_head(&state->wq);
 943
 944         state->rev1 = msp_read_dsp(client, 0x1e);
 945         if (state->rev1 != -1)
 946                 state->rev2 = msp_read_dsp(client, 0x1f);
 947         v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
 948         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
 949                 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
 950                 kfree(state);
 951                 kfree(client);
 952                 return -1;
 953         }
 954
 955         msp_set_audio(client);
 956
 957         msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
 958         msp_product = (state->rev2 >> 8) & 0xff;
 959         msp_prod_hi = msp_product / 10;
 960         msp_prod_lo = msp_product % 10;
 961         msp_revision = (state->rev1 & 0x0f) + '@';
 962         msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
 963         msp_rom = state->rev2 & 0x1f;
 964         snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
 965                         msp_family, msp_product,
 966                         msp_revision, msp_hard, msp_rom);
 967
 968         /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
 969         state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
 970         /* Has radio support: was added with revision G */
 971         state->has_radio = msp_revision >= 'G';
 972         /* Has headphones output: not for stripped down products */
 973         state->has_headphones = msp_prod_lo < 5;
 974         /* Has scart4 input: not in pre D revisions, not in stripped D revs */
 975         state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
 976         /* Has scart2 and scart3 inputs and scart2 output: not in stripped
 977            down products of the '3' family */
 978         state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
 979         /* Has scart2 a volume control? Not in pre-D revisions. */
 980         state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
 981         /* Has a configurable i2s out? */
 982         state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
 983         /* Has subwoofer output: not in pre-D revs and not in stripped down products */
 984         state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
 985         /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
 986            stripped down products */
 987         state->has_sound_processing = msp_prod_lo < 7;
 988         /* Has Virtual Dolby Surround: only in msp34x1 */
 989         state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
 990         /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
 991         state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
 992
 993         state->opmode = opmode;
 994         if (state->opmode == OPMODE_AUTO) {
 995                 /* MSP revision G and up have both autodetect and autoselect */
 996                 if (msp_revision >= 'G')
 997                         state->opmode = OPMODE_AUTOSELECT;
 998                 /* MSP revision D and up have autodetect */
 999                 else if (msp_revision >= 'D')
1000                         state->opmode = OPMODE_AUTODETECT;
1001                 else
1002                         state->opmode = OPMODE_MANUAL;
1003         }
1004
1005         /* hello world :-) */
1006         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1007         v4l_info(client, "%s ", client->name);
1008         if (state->has_nicam && state->has_radio)
1009                 printk("supports nicam and radio, ");
1010         else if (state->has_nicam)
1011                 printk("supports nicam, ");
1012         else if (state->has_radio)
1013                 printk("supports radio, ");
1014         printk("mode is ");
1015
1016         /* version-specific initialization */
1017         switch (state->opmode) {
1018         case OPMODE_MANUAL:
1019                 printk("manual");
1020                 thread_func = msp3400c_thread;
1021                 break;
1022         case OPMODE_AUTODETECT:
1023                 printk("autodetect");
1024                 thread_func = msp3410d_thread;
1025                 break;
1026         case OPMODE_AUTOSELECT:
1027                 printk("autodetect and autoselect");
1028                 thread_func = msp34xxg_thread;
1029                 break;
1030         }
1031         printk("\n");
1032
1033         /* startup control thread if needed */
1034         if (thread_func) {
1035                 state->kthread = kthread_run(thread_func, client, "msp34xx");
1036
1037                 if (state->kthread == NULL)
1038                         v4l_warn(client, "kernel_thread() failed\n");
1039                 msp_wake_thread(client);
1040         }
1041
1042         /* done */
1043         i2c_attach_client(client);
1044
1045         return 0;
1046 }
1047
1048 static int msp_probe(struct i2c_adapter *adapter)
1049 {
1050         if (adapter->class & I2C_CLASS_TV_ANALOG)
1051                 return i2c_probe(adapter, &addr_data, msp_attach);
1052         return 0;
1053 }
1054
1055 static int msp_detach(struct i2c_client *client)
1056 {
1057         struct msp_state *state = i2c_get_clientdata(client);
1058         int err;
1059
1060         /* shutdown control thread */
1061         if (state->kthread) {
1062                 state->restart = 1;
1063                 kthread_stop(state->kthread);
1064         }
1065         msp_reset(client);
1066
1067         err = i2c_detach_client(client);
1068         if (err) {
1069                 return err;
1070         }
1071
1072         kfree(state);
1073         kfree(client);
1074         return 0;
1075 }
1076
1077 /* ----------------------------------------------------------------------- */
1078
1079 /* i2c implementation */
1080 static struct i2c_driver i2c_driver = {
1081         .id             = I2C_DRIVERID_MSP3400,
1082         .attach_adapter = msp_probe,
1083         .detach_client  = msp_detach,
1084         .command        = msp_command,
1085         .driver = {
1086                 .name    = "msp3400",
1087                 .suspend = msp_suspend,
1088                 .resume  = msp_resume,
1089         },
1090 };
1091
1092 static int __init msp3400_init_module(void)
1093 {
1094         return i2c_add_driver(&i2c_driver);
1095 }
1096
1097 static void __exit msp3400_cleanup_module(void)
1098 {
1099         i2c_del_driver(&i2c_driver);
1100 }
1101
1102 module_init(msp3400_init_module);
1103 module_exit(msp3400_cleanup_module);
1104
1105 /*
1106  * Overrides for Emacs so that we follow Linus's tabbing style.
1107  * ---------------------------------------------------------------------------
1108  * Local variables:
1109  * c-basic-offset: 8
1110  * End:
1111  */