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 <media/msp3400.h>
  58 #include <linux/kthread.h>
  59 #include <linux/suspend.h>
  60 #include "msp3400-driver.h"
  61
  62 /* ---------------------------------------------------------------------- */
  63
  64 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
  65 MODULE_AUTHOR("Gerd Knorr");
  66 MODULE_LICENSE("GPL");
  67
  68 /* module parameters */
  69 static int opmode   = OPMODE_AUTO;
  70 int msp_debug;           /* msp_debug output */
  71 int msp_once;            /* no continous stereo monitoring */
  72 int msp_amsound;         /* hard-wire AM sound at 6.5 Hz (france),
  73                             the autoscan seems work well only with FM... */
  74 int msp_standard = 1;    /* Override auto detect of audio msp_standard, if needed. */
  75 int msp_dolby;
  76
  77 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
  78                                         (msp34xxg only) 0x00a0-0x03c0 */
  79
  80 /* read-only */
  81 module_param(opmode,           int, 0444);
  82
  83 /* read-write */
  84 module_param_named(once,msp_once,                      bool, 0644);
  85 module_param_named(debug,msp_debug,                    int,  0644);
  86 module_param_named(stereo_threshold,msp_stereo_thresh, int,  0644);
  87 module_param_named(standard,msp_standard,              int,  0644);
  88 module_param_named(amsound,msp_amsound,                bool, 0644);
  89 module_param_named(dolby,msp_dolby,                    bool, 0644);
  90
  91 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
  92 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
  93 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
  94 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
  95 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
  96 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
  97 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
  98
  99 /* ---------------------------------------------------------------------- */
 100
 101 /* control subaddress */
 102 #define I2C_MSP_CONTROL 0x00
 103 /* demodulator unit subaddress */
 104 #define I2C_MSP_DEM     0x10
 105 /* DSP unit subaddress */
 106 #define I2C_MSP_DSP     0x12
 107
 108 /* Addresses to scan */
 109 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
 110 I2C_CLIENT_INSMOD;
 111
 112 /* ----------------------------------------------------------------------- */
 113 /* functions for talking to the MSP3400C Sound processor                   */
 114
 115 int msp_reset(struct i2c_client *client)
 116 {
 117         /* reset and read revision code */
 118         static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
 119         static u8 reset_on[3]  = { I2C_MSP_CONTROL, 0x00, 0x00 };
 120         static u8 write[3]     = { I2C_MSP_DSP + 1, 0x00, 0x1e };
 121         u8 read[2];
 122         struct i2c_msg reset[2] = {
 123                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
 124                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
 125         };
 126         struct i2c_msg test[2] = {
 127                 { client->addr, 0,        3, write },
 128                 { client->addr, I2C_M_RD, 2, read  },
 129         };
 130
 131         v4l_dbg(3, msp_debug, client, "msp_reset\n");
 132         if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
 133             i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
 134             i2c_transfer(client->adapter, test, 2) != 2) {
 135                 v4l_err(client, "chip reset failed\n");
 136                 return -1;
 137         }
 138         return 0;
 139 }
 140
 141 static int msp_read(struct i2c_client *client, int dev, int addr)
 142 {
 143         int err, retval;
 144         u8 write[3];
 145         u8 read[2];
 146         struct i2c_msg msgs[2] = {
 147                 { client->addr, 0,        3, write },
 148                 { client->addr, I2C_M_RD, 2, read  }
 149         };
 150
 151         write[0] = dev + 1;
 152         write[1] = addr >> 8;
 153         write[2] = addr & 0xff;
 154
 155         for (err = 0; err < 3; err++) {
 156                 if (i2c_transfer(client->adapter, msgs, 2) == 2)
 157                         break;
 158                 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
 159                        dev, addr);
 160                 current->state = TASK_INTERRUPTIBLE;
 161                 schedule_timeout(msecs_to_jiffies(10));
 162         }
 163         if (err == 3) {
 164                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 165                 msp_reset(client);
 166                 return -1;
 167         }
 168         retval = read[0] << 8 | read[1];
 169         v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
 170         return retval;
 171 }
 172
 173 int msp_read_dem(struct i2c_client *client, int addr)
 174 {
 175         return msp_read(client, I2C_MSP_DEM, addr);
 176 }
 177
 178 int msp_read_dsp(struct i2c_client *client, int addr)
 179 {
 180         return msp_read(client, I2C_MSP_DSP, addr);
 181 }
 182
 183 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
 184 {
 185         int err;
 186         u8 buffer[5];
 187
 188         buffer[0] = dev;
 189         buffer[1] = addr >> 8;
 190         buffer[2] = addr &  0xff;
 191         buffer[3] = val  >> 8;
 192         buffer[4] = val  &  0xff;
 193
 194         v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
 195         for (err = 0; err < 3; err++) {
 196                 if (i2c_master_send(client, buffer, 5) == 5)
 197                         break;
 198                 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
 199                        dev, addr);
 200                 current->state = TASK_INTERRUPTIBLE;
 201                 schedule_timeout(msecs_to_jiffies(10));
 202         }
 203         if (err == 3) {
 204                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 205                 msp_reset(client);
 206                 return -1;
 207         }
 208         return 0;
 209 }
 210
 211 int msp_write_dem(struct i2c_client *client, int addr, int val)
 212 {
 213         return msp_write(client, I2C_MSP_DEM, addr, val);
 214 }
 215
 216 int msp_write_dsp(struct i2c_client *client, int addr, int val)
 217 {
 218         return msp_write(client, I2C_MSP_DSP, addr, val);
 219 }
 220
 221 /* ----------------------------------------------------------------------- *
 222  * bits  9  8  5 - SCART DSP input Select:
 223  *       0  0  0 - SCART 1 to DSP input (reset position)
 224  *       0  1  0 - MONO to DSP input
 225  *       1  0  0 - SCART 2 to DSP input
 226  *       1  1  1 - Mute DSP input
 227  *
 228  * bits 11 10  6 - SCART 1 Output Select:
 229  *       0  0  0 - undefined (reset position)
 230  *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
 231  *       1  0  0 - MONO input to SCART 1 Output
 232  *       1  1  0 - SCART 1 DA to SCART 1 Output
 233  *       0  0  1 - SCART 2 DA to SCART 1 Output
 234  *       0  1  1 - SCART 1 Input to SCART 1 Output
 235  *       1  1  1 - Mute SCART 1 Output
 236  *
 237  * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
 238  *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
 239  *       0  1  0 - SCART 1 Input to SCART 2 Output
 240  *       1  0  0 - MONO input to SCART 2 Output
 241  *       0  0  1 - SCART 2 DA to SCART 2 Output
 242  *       0  1  1 - SCART 2 Input to SCART 2 Output
 243  *       1  1  0 - Mute SCART 2 Output
 244  *
 245  * Bits 4 to 0 should be zero.
 246  * ----------------------------------------------------------------------- */
 247
 248 static int scarts[3][9] = {
 249        /* MASK   IN1     IN2     IN3     IN4     IN1_DA  IN2_DA  MONO    MUTE   */
 250         /* SCART DSP Input select */
 251        { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1,     -1,     0x0100, 0x0320 },
 252         /* SCART1 Output select */
 253        { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
 254         /* SCART2 Output select */
 255        { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
 256 };
 257
 258 static char *scart_names[] = {
 259        "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
 260 };
 261
 262 void msp_set_scart(struct i2c_client *client, int in, int out)
 263 {
 264         struct msp_state *state = i2c_get_clientdata(client);
 265
 266         state->in_scart = in;
 267
 268         if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
 269                 if (-1 == scarts[out][in + 1])
 270                         return;
 271
 272                 state->acb &= ~scarts[out][0];
 273                 state->acb |=  scarts[out][in + 1];
 274         } else
 275                 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
 276
 277         v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
 278                                                 scart_names[in], out, state->acb);
 279         msp_write_dsp(client, 0x13, state->acb);
 280
 281         /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
 282         msp_write_dem(client, 0x40, state->i2s_mode);
 283 }
 284
 285 void msp_set_mute(struct i2c_client *client)
 286 {
 287         struct msp_state *state = i2c_get_clientdata(client);
 288
 289         v4l_dbg(1, msp_debug, client, "mute audio\n");
 290         msp_write_dsp(client, 0x0000, 0);
 291         msp_write_dsp(client, 0x0007, 1);
 292         if (state->has_scart2_out_volume)
 293                 msp_write_dsp(client, 0x0040, 1);
 294         if (state->has_headphones)
 295                 msp_write_dsp(client, 0x0006, 0);
 296 }
 297
 298 void msp_set_audio(struct i2c_client *client)
 299 {
 300         struct msp_state *state = i2c_get_clientdata(client);
 301         int bal = 0, bass, treble, loudness;
 302         int val = 0;
 303
 304         if (!state->muted)
 305                 val = (state->volume * 0x7f / 65535) << 8;
 306
 307         v4l_dbg(1, msp_debug, client, "mute=%s volume=%d\n",
 308                 state->muted ? "on" : "off", state->volume);
 309
 310         msp_write_dsp(client, 0x0000, val);
 311         msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
 312         if (state->has_scart2_out_volume)
 313                 msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
 314         if (state->has_headphones)
 315                 msp_write_dsp(client, 0x0006, val);
 316         if (!state->has_sound_processing)
 317                 return;
 318
 319         if (val)
 320                 bal = (u8)((state->balance / 256) - 128);
 321         bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
 322         treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
 323         loudness = state->loudness ? ((5 * 4) << 8) : 0;
 324
 325         v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
 326                 state->balance, state->bass, state->treble, state->loudness);
 327
 328         msp_write_dsp(client, 0x0001, bal << 8);
 329         msp_write_dsp(client, 0x0002, bass);
 330         msp_write_dsp(client, 0x0003, treble);
 331         msp_write_dsp(client, 0x0004, loudness);
 332         if (!state->has_headphones)
 333                 return;
 334         msp_write_dsp(client, 0x0030, bal << 8);
 335         msp_write_dsp(client, 0x0031, bass);
 336         msp_write_dsp(client, 0x0032, treble);
 337         msp_write_dsp(client, 0x0033, loudness);
 338 }
 339
 340 /* ------------------------------------------------------------------------ */
 341
 342
 343 static void msp_wake_thread(struct i2c_client *client)
 344 {
 345         struct msp_state *state = i2c_get_clientdata(client);
 346
 347         if (NULL == state->kthread)
 348                 return;
 349         msp_set_mute(client);
 350         state->watch_stereo = 0;
 351         state->restart = 1;
 352         wake_up_interruptible(&state->wq);
 353 }
 354
 355 int msp_sleep(struct msp_state *state, int timeout)
 356 {
 357         DECLARE_WAITQUEUE(wait, current);
 358
 359         add_wait_queue(&state->wq, &wait);
 360         if (!kthread_should_stop()) {
 361                 if (timeout < 0) {
 362                         set_current_state(TASK_INTERRUPTIBLE);
 363                         schedule();
 364                 } else {
 365                         schedule_timeout_interruptible
 366                                                 (msecs_to_jiffies(timeout));
 367                 }
 368         }
 369
 370         remove_wait_queue(&state->wq, &wait);
 371         try_to_freeze();
 372         return state->restart;
 373 }
 374
 375 /* ------------------------------------------------------------------------ */
 376
 377 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
 378 {
 379         int mode = 0;
 380
 381         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
 382                 mode |= VIDEO_SOUND_STEREO;
 383         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
 384                 mode |= VIDEO_SOUND_LANG2 | VIDEO_SOUND_STEREO;
 385         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
 386                 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_STEREO;
 387         if (mode == 0)
 388                 mode |= VIDEO_SOUND_MONO;
 389         return mode;
 390 }
 391
 392 static int msp_mode_v4l1_to_v4l2(int mode)
 393 {
 394         if (mode & VIDEO_SOUND_STEREO)
 395                 return V4L2_TUNER_MODE_STEREO;
 396         if (mode & VIDEO_SOUND_LANG2)
 397                 return V4L2_TUNER_MODE_LANG2;
 398         if (mode & VIDEO_SOUND_LANG1)
 399                 return V4L2_TUNER_MODE_LANG1;
 400         return V4L2_TUNER_MODE_MONO;
 401 }
 402
 403 static struct v4l2_queryctrl msp_qctrl_std[] = {
 404         {
 405                 .id            = V4L2_CID_AUDIO_VOLUME,
 406                 .name          = "Volume",
 407                 .minimum       = 0,
 408                 .maximum       = 65535,
 409                 .step          = 65535/100,
 410                 .default_value = 58880,
 411                 .flags         = 0,
 412                 .type          = V4L2_CTRL_TYPE_INTEGER,
 413         },{
 414                 .id            = V4L2_CID_AUDIO_MUTE,
 415                 .name          = "Mute",
 416                 .minimum       = 0,
 417                 .maximum       = 1,
 418                 .step          = 1,
 419                 .default_value = 1,
 420                 .flags         = 0,
 421                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 422         },
 423 };
 424
 425 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
 426         {
 427                 .id            = V4L2_CID_AUDIO_BALANCE,
 428                 .name          = "Balance",
 429                 .minimum       = 0,
 430                 .maximum       = 65535,
 431                 .step          = 65535/100,
 432                 .default_value = 32768,
 433                 .flags         = 0,
 434                 .type          = V4L2_CTRL_TYPE_INTEGER,
 435         },{
 436                 .id            = V4L2_CID_AUDIO_BASS,
 437                 .name          = "Bass",
 438                 .minimum       = 0,
 439                 .maximum       = 65535,
 440                 .step          = 65535/100,
 441                 .default_value = 32768,
 442                 .type          = V4L2_CTRL_TYPE_INTEGER,
 443         },{
 444                 .id            = V4L2_CID_AUDIO_TREBLE,
 445                 .name          = "Treble",
 446                 .minimum       = 0,
 447                 .maximum       = 65535,
 448                 .step          = 65535/100,
 449                 .default_value = 32768,
 450                 .type          = V4L2_CTRL_TYPE_INTEGER,
 451         },{
 452                 .id            = V4L2_CID_AUDIO_LOUDNESS,
 453                 .name          = "Loudness",
 454                 .minimum       = 0,
 455                 .maximum       = 1,
 456                 .step          = 1,
 457                 .default_value = 1,
 458                 .flags         = 0,
 459                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 460         },
 461 };
 462
 463
 464 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 465 {
 466         struct msp_state *state = i2c_get_clientdata(client);
 467
 468         switch (ctrl->id) {
 469         case V4L2_CID_AUDIO_VOLUME:
 470                 ctrl->value = state->volume;
 471                 break;
 472
 473         case V4L2_CID_AUDIO_MUTE:
 474                 ctrl->value = state->muted;
 475                 break;
 476
 477         case V4L2_CID_AUDIO_BALANCE:
 478                 if (!state->has_sound_processing)
 479                         return -EINVAL;
 480                 ctrl->value = state->balance;
 481                 break;
 482
 483         case V4L2_CID_AUDIO_BASS:
 484                 if (!state->has_sound_processing)
 485                         return -EINVAL;
 486                 ctrl->value = state->bass;
 487                 break;
 488
 489         case V4L2_CID_AUDIO_TREBLE:
 490                 if (!state->has_sound_processing)
 491                         return -EINVAL;
 492                 ctrl->value = state->treble;
 493                 break;
 494
 495         case V4L2_CID_AUDIO_LOUDNESS:
 496                 if (!state->has_sound_processing)
 497                         return -EINVAL;
 498                 ctrl->value = state->loudness;
 499                 break;
 500
 501         default:
 502                 return -EINVAL;
 503         }
 504         return 0;
 505 }
 506
 507 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 508 {
 509         struct msp_state *state = i2c_get_clientdata(client);
 510
 511         switch (ctrl->id) {
 512         case V4L2_CID_AUDIO_VOLUME:
 513                 state->volume = ctrl->value;
 514                 if (state->volume == 0)
 515                         state->balance = 32768;
 516                 break;
 517
 518         case V4L2_CID_AUDIO_MUTE:
 519                 if (ctrl->value < 0 || ctrl->value >= 2)
 520                         return -ERANGE;
 521                 state->muted = ctrl->value;
 522                 break;
 523
 524         case V4L2_CID_AUDIO_BASS:
 525                 if (!state->has_sound_processing)
 526                         return -EINVAL;
 527                 state->bass = ctrl->value;
 528                 break;
 529
 530         case V4L2_CID_AUDIO_TREBLE:
 531                 if (!state->has_sound_processing)
 532                         return -EINVAL;
 533                 state->treble = ctrl->value;
 534                 break;
 535
 536         case V4L2_CID_AUDIO_LOUDNESS:
 537                 if (!state->has_sound_processing)
 538                         return -EINVAL;
 539                 state->loudness = ctrl->value;
 540                 break;
 541
 542         case V4L2_CID_AUDIO_BALANCE:
 543                 if (!state->has_sound_processing)
 544                         return -EINVAL;
 545                 state->balance = ctrl->value;
 546                 break;
 547
 548         default:
 549                 return -EINVAL;
 550         }
 551         msp_set_audio(client);
 552         return 0;
 553 }
 554
 555 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 556 {
 557         struct msp_state *state = i2c_get_clientdata(client);
 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         /* --- v4l2 ioctls --- */
 663         case VIDIOC_S_STD:
 664         {
 665                 v4l2_std_id *id = arg;
 666                 int update = state->radio || state->v4l2_std != *id;
 667
 668                 state->v4l2_std = *id;
 669                 state->radio = 0;
 670                 if (update)
 671                         msp_wake_thread(client);
 672                 return 0;
 673         }
 674
 675         case VIDIOC_INT_G_AUDIO_ROUTING:
 676         {
 677                 struct v4l2_routing *rt = arg;
 678
 679                 *rt = state->routing;
 680                 break;
 681         }
 682
 683         case VIDIOC_INT_S_AUDIO_ROUTING:
 684         {
 685                 struct v4l2_routing *rt = arg;
 686                 int tuner = (rt->input >> 3) & 1;
 687                 int sc_in = rt->input & 0x7;
 688                 int sc1_out = rt->output & 0xf;
 689                 int sc2_out = (rt->output >> 4) & 0xf;
 690                 u16 val;
 691
 692                 state->routing = *rt;
 693                 if (state->opmode == OPMODE_AUTOSELECT) {
 694                         val = msp_read_dem(client, 0x30) & ~0x100;
 695                         msp_write_dem(client, 0x30, val | (tuner ? 0x100 : 0));
 696                 } else {
 697                         val = msp_read_dem(client, 0xbb) & ~0x100;
 698                         msp_write_dem(client, 0xbb, val | (tuner ? 0x100 : 0));
 699                 }
 700                 msp_set_scart(client, sc_in, 0);
 701                 msp_set_scart(client, sc1_out, 1);
 702                 msp_set_scart(client, sc2_out, 2);
 703                 msp_set_audmode(client);
 704                 msp_wake_thread(client);
 705                 break;
 706         }
 707
 708         case VIDIOC_G_TUNER:
 709         {
 710                 struct v4l2_tuner *vt = arg;
 711
 712                 if (state->radio)
 713                         break;
 714                 if (state->opmode == OPMODE_AUTOSELECT)
 715                         msp_detect_stereo(client);
 716                 vt->audmode    = state->audmode;
 717                 vt->rxsubchans = state->rxsubchans;
 718                 vt->capability = V4L2_TUNER_CAP_STEREO |
 719                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 720                 break;
 721         }
 722
 723         case VIDIOC_S_TUNER:
 724         {
 725                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 726
 727                 if (state->radio)  /* TODO: add mono/stereo support for radio */
 728                         break;
 729                 state->audmode = vt->audmode;
 730                 /* only set audmode */
 731                 msp_set_audmode(client);
 732                 break;
 733         }
 734
 735         case VIDIOC_INT_I2S_CLOCK_FREQ:
 736         {
 737                 u32 *a = (u32 *)arg;
 738
 739                 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
 740
 741                 switch (*a) {
 742                         case 1024000:
 743                                 state->i2s_mode = 0;
 744                                 break;
 745                         case 2048000:
 746                                 state->i2s_mode = 1;
 747                                 break;
 748                         default:
 749                                 return -EINVAL;
 750                 }
 751                 break;
 752         }
 753
 754         case VIDIOC_QUERYCTRL:
 755         {
 756                 struct v4l2_queryctrl *qc = arg;
 757                 int i;
 758
 759                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
 760                         if (qc->id && qc->id == msp_qctrl_std[i].id) {
 761                                 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
 762                                 return 0;
 763                         }
 764                 if (!state->has_sound_processing)
 765                         return -EINVAL;
 766                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
 767                         if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
 768                                 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
 769                                 return 0;
 770                         }
 771                 return -EINVAL;
 772         }
 773
 774         case VIDIOC_G_CTRL:
 775                 return msp_get_ctrl(client, arg);
 776
 777         case VIDIOC_S_CTRL:
 778                 return msp_set_ctrl(client, arg);
 779
 780         case VIDIOC_LOG_STATUS:
 781         {
 782                 const char *p;
 783
 784                 if (state->opmode == OPMODE_AUTOSELECT)
 785                         msp_detect_stereo(client);
 786                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 787                                 client->name, state->rev1, state->rev2);
 788                 v4l_info(client, "Audio:    volume %d%s\n",
 789                                 state->volume, state->muted ? " (muted)" : "");
 790                 if (state->has_sound_processing) {
 791                         v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
 792                                         state->balance, state->bass, state->treble,
 793                                         state->loudness ? "on" : "off");
 794                 }
 795                 switch (state->mode) {
 796                 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
 797                 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
 798                 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
 799                 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
 800                 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
 801                 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
 802                 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
 803                 case MSP_MODE_BTSC: p = "BTSC"; break;
 804                 case MSP_MODE_EXTERN: p = "External input"; break;
 805                 default: p = "unknown"; break;
 806                 }
 807                 if (state->opmode == OPMODE_MANUAL) {
 808                         v4l_info(client, "Mode:     %s (%s%s)\n", p,
 809                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 810                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 811                 } else {
 812                         if (state->opmode == OPMODE_AUTODETECT)
 813                                 v4l_info(client, "Mode:     %s\n", p);
 814                         v4l_info(client, "Standard: %s (%s%s)\n",
 815                                 msp_standard_std_name(state->std),
 816                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 817                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 818                 }
 819                 v4l_info(client, "Audmode:  0x%04x\n", state->audmode);
 820                 v4l_info(client, "Routing:  0x%08x (input) 0x%08x (output)\n",
 821                                 state->routing.input, state->routing.output);
 822                 v4l_info(client, "ACB:      0x%04x\n", state->acb);
 823                 break;
 824         }
 825
 826         default:
 827                 /* unknown */
 828                 return -EINVAL;
 829         }
 830         return 0;
 831 }
 832
 833 static int msp_suspend(struct device * dev, pm_message_t state)
 834 {
 835         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 836
 837         v4l_dbg(1, msp_debug, client, "suspend\n");
 838         msp_reset(client);
 839         return 0;
 840 }
 841
 842 static int msp_resume(struct device * dev)
 843 {
 844         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 845
 846         v4l_dbg(1, msp_debug, client, "resume\n");
 847         msp_wake_thread(client);
 848         return 0;
 849 }
 850
 851 /* ----------------------------------------------------------------------- */
 852
 853 static struct i2c_driver i2c_driver;
 854
 855 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 856 {
 857         struct i2c_client *client;
 858         struct msp_state *state;
 859         int (*thread_func)(void *data) = NULL;
 860         int msp_hard;
 861         int msp_family;
 862         int msp_revision;
 863         int msp_product, msp_prod_hi, msp_prod_lo;
 864         int msp_rom;
 865
 866         client = kmalloc(sizeof(*client), GFP_KERNEL);
 867         if (client == NULL)
 868                 return -ENOMEM;
 869         memset(client, 0, sizeof(*client));
 870         client->addr = address;
 871         client->adapter = adapter;
 872         client->driver = &i2c_driver;
 873         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
 874
 875         if (msp_reset(client) == -1) {
 876                 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
 877                 kfree(client);
 878                 return -1;
 879         }
 880
 881         state = kmalloc(sizeof(*state), GFP_KERNEL);
 882         if (state == NULL) {
 883                 kfree(client);
 884                 return -ENOMEM;
 885         }
 886         i2c_set_clientdata(client, state);
 887
 888         memset(state, 0, sizeof(*state));
 889         state->v4l2_std = V4L2_STD_NTSC;
 890         state->audmode = V4L2_TUNER_MODE_LANG1;
 891         state->volume = 58880;  /* 0db gain */
 892         state->balance = 32768; /* 0db gain */
 893         state->bass = 32768;
 894         state->treble = 32768;
 895         state->loudness = 0;
 896         state->input = -1;
 897         state->muted = 0;
 898         state->i2s_mode = 0;
 899         init_waitqueue_head(&state->wq);
 900         /* These are the reset input/output positions */
 901         state->routing.input = MSP_INPUT_DEFAULT;
 902         state->routing.output = MSP_OUTPUT_DEFAULT;
 903
 904         state->rev1 = msp_read_dsp(client, 0x1e);
 905         if (state->rev1 != -1)
 906                 state->rev2 = msp_read_dsp(client, 0x1f);
 907         v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
 908         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
 909                 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
 910                 kfree(state);
 911                 kfree(client);
 912                 return -1;
 913         }
 914
 915         msp_set_audio(client);
 916
 917         msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
 918         msp_product = (state->rev2 >> 8) & 0xff;
 919         msp_prod_hi = msp_product / 10;
 920         msp_prod_lo = msp_product % 10;
 921         msp_revision = (state->rev1 & 0x0f) + '@';
 922         msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
 923         msp_rom = state->rev2 & 0x1f;
 924         snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
 925                         msp_family, msp_product,
 926                         msp_revision, msp_hard, msp_rom);
 927
 928         /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
 929         state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
 930         /* Has radio support: was added with revision G */
 931         state->has_radio = msp_revision >= 'G';
 932         /* Has headphones output: not for stripped down products */
 933         state->has_headphones = msp_prod_lo < 5;
 934         /* Has scart4 input: not in pre D revisions, not in stripped D revs */
 935         state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
 936         /* Has scart2 and scart3 inputs and scart2 output: not in stripped
 937            down products of the '3' family */
 938         state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
 939         /* Has scart2 a volume control? Not in pre-D revisions. */
 940         state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
 941         /* Has a configurable i2s out? */
 942         state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
 943         /* Has subwoofer output: not in pre-D revs and not in stripped down products */
 944         state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
 945         /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
 946            stripped down products */
 947         state->has_sound_processing = msp_prod_lo < 7;
 948         /* Has Virtual Dolby Surround: only in msp34x1 */
 949         state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
 950         /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
 951         state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
 952
 953         state->opmode = opmode;
 954         if (state->opmode == OPMODE_AUTO) {
 955                 /* MSP revision G and up have both autodetect and autoselect */
 956                 if (msp_revision >= 'G')
 957                         state->opmode = OPMODE_AUTOSELECT;
 958                 /* MSP revision D and up have autodetect */
 959                 else if (msp_revision >= 'D')
 960                         state->opmode = OPMODE_AUTODETECT;
 961                 else
 962                         state->opmode = OPMODE_MANUAL;
 963         }
 964
 965         /* hello world :-) */
 966         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
 967         v4l_info(client, "%s ", client->name);
 968         if (state->has_nicam && state->has_radio)
 969                 printk("supports nicam and radio, ");
 970         else if (state->has_nicam)
 971                 printk("supports nicam, ");
 972         else if (state->has_radio)
 973                 printk("supports radio, ");
 974         printk("mode is ");
 975
 976         /* version-specific initialization */
 977         switch (state->opmode) {
 978         case OPMODE_MANUAL:
 979                 printk("manual");
 980                 thread_func = msp3400c_thread;
 981                 break;
 982         case OPMODE_AUTODETECT:
 983                 printk("autodetect");
 984                 thread_func = msp3410d_thread;
 985                 break;
 986         case OPMODE_AUTOSELECT:
 987                 printk("autodetect and autoselect");
 988                 thread_func = msp34xxg_thread;
 989                 break;
 990         }
 991         printk("\n");
 992
 993         /* startup control thread if needed */
 994         if (thread_func) {
 995                 state->kthread = kthread_run(thread_func, client, "msp34xx");
 996
 997                 if (state->kthread == NULL)
 998                         v4l_warn(client, "kernel_thread() failed\n");
 999                 msp_wake_thread(client);
1000         }
1001
1002         /* done */
1003         i2c_attach_client(client);
1004
1005         return 0;
1006 }
1007
1008 static int msp_probe(struct i2c_adapter *adapter)
1009 {
1010         if (adapter->class & I2C_CLASS_TV_ANALOG)
1011                 return i2c_probe(adapter, &addr_data, msp_attach);
1012         return 0;
1013 }
1014
1015 static int msp_detach(struct i2c_client *client)
1016 {
1017         struct msp_state *state = i2c_get_clientdata(client);
1018         int err;
1019
1020         /* shutdown control thread */
1021         if (state->kthread) {
1022                 state->restart = 1;
1023                 kthread_stop(state->kthread);
1024         }
1025         msp_reset(client);
1026
1027         err = i2c_detach_client(client);
1028         if (err) {
1029                 return err;
1030         }
1031
1032         kfree(state);
1033         kfree(client);
1034         return 0;
1035 }
1036
1037 /* ----------------------------------------------------------------------- */
1038
1039 /* i2c implementation */
1040 static struct i2c_driver i2c_driver = {
1041         .id             = I2C_DRIVERID_MSP3400,
1042         .attach_adapter = msp_probe,
1043         .detach_client  = msp_detach,
1044         .command        = msp_command,
1045         .driver = {
1046                 .name    = "msp3400",
1047                 .suspend = msp_suspend,
1048                 .resume  = msp_resume,
1049         },
1050 };
1051
1052 static int __init msp3400_init_module(void)
1053 {
1054         return i2c_add_driver(&i2c_driver);
1055 }
1056
1057 static void __exit msp3400_cleanup_module(void)
1058 {
1059         i2c_del_driver(&i2c_driver);
1060 }
1061
1062 module_init(msp3400_init_module);
1063 module_exit(msp3400_cleanup_module);
1064
1065 /*
1066  * Overrides for Emacs so that we follow Linus's tabbing style.
1067  * ---------------------------------------------------------------------------
1068  * Local variables:
1069  * c-basic-offset: 8
1070  * End:
1071  */