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 <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         if (state->has_i2s_conf)
 283                 msp_write_dem(client, 0x40, state->i2s_mode);
 284 }
 285
 286 void msp_set_audio(struct i2c_client *client)
 287 {
 288         struct msp_state *state = i2c_get_clientdata(client);
 289         int bal = 0, bass, treble, loudness;
 290         int val = 0;
 291         int reallymuted = state->muted | state->scan_in_progress;
 292
 293         if (!reallymuted)
 294                 val = (state->volume * 0x7f / 65535) << 8;
 295
 296         v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
 297                 state->muted ? "on" : "off", state->scan_in_progress ? "yes" : "no",
 298                 state->volume);
 299
 300         msp_write_dsp(client, 0x0000, val);
 301         msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
 302         if (state->has_scart2_out_volume)
 303                 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
 304         if (state->has_headphones)
 305                 msp_write_dsp(client, 0x0006, val);
 306         if (!state->has_sound_processing)
 307                 return;
 308
 309         if (val)
 310                 bal = (u8)((state->balance / 256) - 128);
 311         bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
 312         treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
 313         loudness = state->loudness ? ((5 * 4) << 8) : 0;
 314
 315         v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
 316                 state->balance, state->bass, state->treble, state->loudness);
 317
 318         msp_write_dsp(client, 0x0001, bal << 8);
 319         msp_write_dsp(client, 0x0002, bass);
 320         msp_write_dsp(client, 0x0003, treble);
 321         msp_write_dsp(client, 0x0004, loudness);
 322         if (!state->has_headphones)
 323                 return;
 324         msp_write_dsp(client, 0x0030, bal << 8);
 325         msp_write_dsp(client, 0x0031, bass);
 326         msp_write_dsp(client, 0x0032, treble);
 327         msp_write_dsp(client, 0x0033, loudness);
 328 }
 329
 330 /* ------------------------------------------------------------------------ */
 331
 332
 333 static void msp_wake_thread(struct i2c_client *client)
 334 {
 335         struct msp_state *state = i2c_get_clientdata(client);
 336
 337         if (NULL == state->kthread)
 338                 return;
 339         state->watch_stereo = 0;
 340         state->restart = 1;
 341         wake_up_interruptible(&state->wq);
 342 }
 343
 344 int msp_sleep(struct msp_state *state, int timeout)
 345 {
 346         DECLARE_WAITQUEUE(wait, current);
 347
 348         add_wait_queue(&state->wq, &wait);
 349         if (!kthread_should_stop()) {
 350                 if (timeout < 0) {
 351                         set_current_state(TASK_INTERRUPTIBLE);
 352                         schedule();
 353                 } else {
 354                         schedule_timeout_interruptible
 355                                                 (msecs_to_jiffies(timeout));
 356                 }
 357         }
 358
 359         remove_wait_queue(&state->wq, &wait);
 360         try_to_freeze();
 361         return state->restart;
 362 }
 363
 364 /* ------------------------------------------------------------------------ */
 365
 366 static int msp_mode_v4l2_to_v4l1(int rxsubchans, int audmode)
 367 {
 368         if (rxsubchans == V4L2_TUNER_SUB_MONO)
 369                 return VIDEO_SOUND_MONO;
 370         if (rxsubchans == V4L2_TUNER_SUB_STEREO)
 371                 return VIDEO_SOUND_STEREO;
 372         if (audmode == V4L2_TUNER_MODE_LANG2)
 373                 return VIDEO_SOUND_LANG2;
 374         return VIDEO_SOUND_LANG1;
 375 }
 376
 377 static int msp_mode_v4l1_to_v4l2(int mode)
 378 {
 379         if (mode & VIDEO_SOUND_STEREO)
 380                 return V4L2_TUNER_MODE_STEREO;
 381         if (mode & VIDEO_SOUND_LANG2)
 382                 return V4L2_TUNER_MODE_LANG2;
 383         if (mode & VIDEO_SOUND_LANG1)
 384                 return V4L2_TUNER_MODE_LANG1;
 385         return V4L2_TUNER_MODE_MONO;
 386 }
 387
 388 static struct v4l2_queryctrl msp_qctrl_std[] = {
 389         {
 390                 .id            = V4L2_CID_AUDIO_VOLUME,
 391                 .name          = "Volume",
 392                 .minimum       = 0,
 393                 .maximum       = 65535,
 394                 .step          = 65535/100,
 395                 .default_value = 58880,
 396                 .flags         = 0,
 397                 .type          = V4L2_CTRL_TYPE_INTEGER,
 398         },{
 399                 .id            = V4L2_CID_AUDIO_MUTE,
 400                 .name          = "Mute",
 401                 .minimum       = 0,
 402                 .maximum       = 1,
 403                 .step          = 1,
 404                 .default_value = 1,
 405                 .flags         = 0,
 406                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 407         },
 408 };
 409
 410 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
 411         {
 412                 .id            = V4L2_CID_AUDIO_BALANCE,
 413                 .name          = "Balance",
 414                 .minimum       = 0,
 415                 .maximum       = 65535,
 416                 .step          = 65535/100,
 417                 .default_value = 32768,
 418                 .flags         = 0,
 419                 .type          = V4L2_CTRL_TYPE_INTEGER,
 420         },{
 421                 .id            = V4L2_CID_AUDIO_BASS,
 422                 .name          = "Bass",
 423                 .minimum       = 0,
 424                 .maximum       = 65535,
 425                 .step          = 65535/100,
 426                 .default_value = 32768,
 427                 .type          = V4L2_CTRL_TYPE_INTEGER,
 428         },{
 429                 .id            = V4L2_CID_AUDIO_TREBLE,
 430                 .name          = "Treble",
 431                 .minimum       = 0,
 432                 .maximum       = 65535,
 433                 .step          = 65535/100,
 434                 .default_value = 32768,
 435                 .type          = V4L2_CTRL_TYPE_INTEGER,
 436         },{
 437                 .id            = V4L2_CID_AUDIO_LOUDNESS,
 438                 .name          = "Loudness",
 439                 .minimum       = 0,
 440                 .maximum       = 1,
 441                 .step          = 1,
 442                 .default_value = 1,
 443                 .flags         = 0,
 444                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 445         },
 446 };
 447
 448
 449 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 450 {
 451         struct msp_state *state = i2c_get_clientdata(client);
 452
 453         switch (ctrl->id) {
 454         case V4L2_CID_AUDIO_VOLUME:
 455                 ctrl->value = state->volume;
 456                 break;
 457
 458         case V4L2_CID_AUDIO_MUTE:
 459                 ctrl->value = state->muted;
 460                 break;
 461
 462         case V4L2_CID_AUDIO_BALANCE:
 463                 if (!state->has_sound_processing)
 464                         return -EINVAL;
 465                 ctrl->value = state->balance;
 466                 break;
 467
 468         case V4L2_CID_AUDIO_BASS:
 469                 if (!state->has_sound_processing)
 470                         return -EINVAL;
 471                 ctrl->value = state->bass;
 472                 break;
 473
 474         case V4L2_CID_AUDIO_TREBLE:
 475                 if (!state->has_sound_processing)
 476                         return -EINVAL;
 477                 ctrl->value = state->treble;
 478                 break;
 479
 480         case V4L2_CID_AUDIO_LOUDNESS:
 481                 if (!state->has_sound_processing)
 482                         return -EINVAL;
 483                 ctrl->value = state->loudness;
 484                 break;
 485
 486         default:
 487                 return -EINVAL;
 488         }
 489         return 0;
 490 }
 491
 492 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 493 {
 494         struct msp_state *state = i2c_get_clientdata(client);
 495
 496         switch (ctrl->id) {
 497         case V4L2_CID_AUDIO_VOLUME:
 498                 state->volume = ctrl->value;
 499                 if (state->volume == 0)
 500                         state->balance = 32768;
 501                 break;
 502
 503         case V4L2_CID_AUDIO_MUTE:
 504                 if (ctrl->value < 0 || ctrl->value >= 2)
 505                         return -ERANGE;
 506                 state->muted = ctrl->value;
 507                 break;
 508
 509         case V4L2_CID_AUDIO_BASS:
 510                 if (!state->has_sound_processing)
 511                         return -EINVAL;
 512                 state->bass = ctrl->value;
 513                 break;
 514
 515         case V4L2_CID_AUDIO_TREBLE:
 516                 if (!state->has_sound_processing)
 517                         return -EINVAL;
 518                 state->treble = ctrl->value;
 519                 break;
 520
 521         case V4L2_CID_AUDIO_LOUDNESS:
 522                 if (!state->has_sound_processing)
 523                         return -EINVAL;
 524                 state->loudness = ctrl->value;
 525                 break;
 526
 527         case V4L2_CID_AUDIO_BALANCE:
 528                 if (!state->has_sound_processing)
 529                         return -EINVAL;
 530                 state->balance = ctrl->value;
 531                 break;
 532
 533         default:
 534                 return -EINVAL;
 535         }
 536         msp_set_audio(client);
 537         return 0;
 538 }
 539
 540 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 541 {
 542         struct msp_state *state = i2c_get_clientdata(client);
 543
 544         if (msp_debug >= 2)
 545                 v4l_i2c_print_ioctl(client, cmd);
 546
 547         switch (cmd) {
 548         case AUDC_SET_RADIO:
 549                 if (state->radio)
 550                         return 0;
 551                 state->radio = 1;
 552                 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
 553                 state->watch_stereo = 0;
 554                 switch (state->opmode) {
 555                 case OPMODE_MANUAL:
 556                         /* set msp3400 to FM radio mode */
 557                         msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
 558                         msp3400c_set_carrier(client, MSP_CARRIER(10.7),
 559                                             MSP_CARRIER(10.7));
 560                         msp_set_audio(client);
 561                         break;
 562                 case OPMODE_AUTODETECT:
 563                 case OPMODE_AUTOSELECT:
 564                         /* the thread will do for us */
 565                         msp_wake_thread(client);
 566                         break;
 567                 }
 568                 break;
 569
 570         /* --- v4l ioctls --- */
 571         /* take care: bttv does userspace copying, we'll get a
 572            kernel pointer here... */
 573         case VIDIOCGAUDIO:
 574         {
 575                 struct video_audio *va = arg;
 576
 577                 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
 578                 if (state->has_sound_processing)
 579                         va->flags |= VIDEO_AUDIO_BALANCE |
 580                                 VIDEO_AUDIO_BASS |
 581                                 VIDEO_AUDIO_TREBLE;
 582                 if (state->muted)
 583                         va->flags |= VIDEO_AUDIO_MUTE;
 584                 va->volume = state->volume;
 585                 va->balance = state->volume ? state->balance : 32768;
 586                 va->bass = state->bass;
 587                 va->treble = state->treble;
 588
 589                 if (state->radio)
 590                         break;
 591                 if (state->opmode == OPMODE_AUTOSELECT)
 592                         msp_detect_stereo(client);
 593                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
 594                 break;
 595         }
 596
 597         case VIDIOCSAUDIO:
 598         {
 599                 struct video_audio *va = arg;
 600
 601                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
 602                 state->volume = va->volume;
 603                 state->balance = va->balance;
 604                 state->bass = va->bass;
 605                 state->treble = va->treble;
 606                 msp_set_audio(client);
 607
 608                 if (va->mode != 0 && state->radio == 0 &&
 609                     state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
 610                         state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
 611                         msp_set_audmode(client);
 612                 }
 613                 break;
 614         }
 615
 616         case VIDIOCSCHAN:
 617         {
 618                 struct video_channel *vc = arg;
 619                 int update = 0;
 620                 v4l2_std_id std;
 621
 622                 if (state->radio)
 623                         update = 1;
 624                 state->radio = 0;
 625                 if (vc->norm == VIDEO_MODE_PAL)
 626                         std = V4L2_STD_PAL;
 627                 else if (vc->norm == VIDEO_MODE_SECAM)
 628                         std = V4L2_STD_SECAM;
 629                 else
 630                         std = V4L2_STD_NTSC;
 631                 if (std != state->v4l2_std) {
 632                         state->v4l2_std = std;
 633                         update = 1;
 634                 }
 635                 if (update)
 636                         msp_wake_thread(client);
 637                 break;
 638         }
 639
 640         case VIDIOCSFREQ:
 641         case VIDIOC_S_FREQUENCY:
 642         {
 643                 /* new channel -- kick audio carrier scan */
 644                 msp_wake_thread(client);
 645                 break;
 646         }
 647
 648         /* --- v4l2 ioctls --- */
 649         case VIDIOC_S_STD:
 650         {
 651                 v4l2_std_id *id = arg;
 652                 int update = state->radio || state->v4l2_std != *id;
 653
 654                 state->v4l2_std = *id;
 655                 state->radio = 0;
 656                 if (update)
 657                         msp_wake_thread(client);
 658                 return 0;
 659         }
 660
 661         case VIDIOC_INT_G_AUDIO_ROUTING:
 662         {
 663                 struct v4l2_routing *rt = arg;
 664
 665                 *rt = state->routing;
 666                 break;
 667         }
 668
 669         case VIDIOC_INT_S_AUDIO_ROUTING:
 670         {
 671                 struct v4l2_routing *rt = arg;
 672                 int tuner = (rt->input >> 3) & 1;
 673                 int sc_in = rt->input & 0x7;
 674                 int sc1_out = rt->output & 0xf;
 675                 int sc2_out = (rt->output >> 4) & 0xf;
 676                 u16 val, reg;
 677
 678                 if (state->routing.input == rt->input &&
 679                     state->routing.output == rt->output)
 680                         break;
 681                 state->routing = *rt;
 682                 msp_set_scart(client, sc_in, 0);
 683                 msp_set_scart(client, sc1_out, 1);
 684                 msp_set_scart(client, sc2_out, 2);
 685                 msp_set_audmode(client);
 686                 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
 687                 val = msp_read_dem(client, reg);
 688                 if (tuner != ((val >> 8) & 1)) {
 689                         msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
 690                         /* wake thread when a new tuner input is chosen */
 691                         msp_wake_thread(client);
 692                 }
 693                 break;
 694         }
 695
 696         case VIDIOC_G_TUNER:
 697         {
 698                 struct v4l2_tuner *vt = arg;
 699
 700                 if (state->radio)
 701                         break;
 702                 if (state->opmode == OPMODE_AUTOSELECT)
 703                         msp_detect_stereo(client);
 704                 vt->audmode    = state->audmode;
 705                 vt->rxsubchans = state->rxsubchans;
 706                 vt->capability |= V4L2_TUNER_CAP_STEREO |
 707                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 708                 break;
 709         }
 710
 711         case VIDIOC_S_TUNER:
 712         {
 713                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 714
 715                 if (state->radio)  /* TODO: add mono/stereo support for radio */
 716                         break;
 717                 if (state->audmode == vt->audmode)
 718                         break;
 719                 state->audmode = vt->audmode;
 720                 /* only set audmode */
 721                 msp_set_audmode(client);
 722                 break;
 723         }
 724
 725         case VIDIOC_INT_I2S_CLOCK_FREQ:
 726         {
 727                 u32 *a = (u32 *)arg;
 728
 729                 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
 730
 731                 switch (*a) {
 732                         case 1024000:
 733                                 state->i2s_mode = 0;
 734                                 break;
 735                         case 2048000:
 736                                 state->i2s_mode = 1;
 737                                 break;
 738                         default:
 739                                 return -EINVAL;
 740                 }
 741                 break;
 742         }
 743
 744         case VIDIOC_QUERYCTRL:
 745         {
 746                 struct v4l2_queryctrl *qc = arg;
 747                 int i;
 748
 749                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
 750                         if (qc->id && qc->id == msp_qctrl_std[i].id) {
 751                                 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
 752                                 return 0;
 753                         }
 754                 if (!state->has_sound_processing)
 755                         return -EINVAL;
 756                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
 757                         if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
 758                                 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
 759                                 return 0;
 760                         }
 761                 return -EINVAL;
 762         }
 763
 764         case VIDIOC_G_CTRL:
 765                 return msp_get_ctrl(client, arg);
 766
 767         case VIDIOC_S_CTRL:
 768                 return msp_set_ctrl(client, arg);
 769
 770         case VIDIOC_LOG_STATUS:
 771         {
 772                 const char *p;
 773
 774                 if (state->opmode == OPMODE_AUTOSELECT)
 775                         msp_detect_stereo(client);
 776                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 777                                 client->name, state->rev1, state->rev2);
 778                 v4l_info(client, "Audio:    volume %d%s\n",
 779                                 state->volume, state->muted ? " (muted)" : "");
 780                 if (state->has_sound_processing) {
 781                         v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
 782                                         state->balance, state->bass, state->treble,
 783                                         state->loudness ? "on" : "off");
 784                 }
 785                 switch (state->mode) {
 786                 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
 787                 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
 788                 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
 789                 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
 790                 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
 791                 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
 792                 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
 793                 case MSP_MODE_BTSC: p = "BTSC"; break;
 794                 case MSP_MODE_EXTERN: p = "External input"; break;
 795                 default: p = "unknown"; break;
 796                 }
 797                 if (state->opmode == OPMODE_MANUAL) {
 798                         v4l_info(client, "Mode:     %s (%s%s)\n", p,
 799                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 800                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 801                 } else {
 802                         if (state->opmode == OPMODE_AUTODETECT)
 803                                 v4l_info(client, "Mode:     %s\n", p);
 804                         v4l_info(client, "Standard: %s (%s%s)\n",
 805                                 msp_standard_std_name(state->std),
 806                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 807                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 808                 }
 809                 v4l_info(client, "Audmode:  0x%04x\n", state->audmode);
 810                 v4l_info(client, "Routing:  0x%08x (input) 0x%08x (output)\n",
 811                                 state->routing.input, state->routing.output);
 812                 v4l_info(client, "ACB:      0x%04x\n", state->acb);
 813                 break;
 814         }
 815
 816         default:
 817                 /* unknown */
 818                 return -EINVAL;
 819         }
 820         return 0;
 821 }
 822
 823 static int msp_suspend(struct device * dev, pm_message_t state)
 824 {
 825         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 826
 827         v4l_dbg(1, msp_debug, client, "suspend\n");
 828         msp_reset(client);
 829         return 0;
 830 }
 831
 832 static int msp_resume(struct device * dev)
 833 {
 834         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 835
 836         v4l_dbg(1, msp_debug, client, "resume\n");
 837         msp_wake_thread(client);
 838         return 0;
 839 }
 840
 841 /* ----------------------------------------------------------------------- */
 842
 843 static struct i2c_driver i2c_driver;
 844
 845 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 846 {
 847         struct i2c_client *client;
 848         struct msp_state *state;
 849         int (*thread_func)(void *data) = NULL;
 850         int msp_hard;
 851         int msp_family;
 852         int msp_revision;
 853         int msp_product, msp_prod_hi, msp_prod_lo;
 854         int msp_rom;
 855
 856         client = kmalloc(sizeof(*client), GFP_KERNEL);
 857         if (client == NULL)
 858                 return -ENOMEM;
 859         memset(client, 0, sizeof(*client));
 860         client->addr = address;
 861         client->adapter = adapter;
 862         client->driver = &i2c_driver;
 863         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
 864
 865         if (msp_reset(client) == -1) {
 866                 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
 867                 kfree(client);
 868                 return -1;
 869         }
 870
 871         state = kmalloc(sizeof(*state), GFP_KERNEL);
 872         if (state == NULL) {
 873                 kfree(client);
 874                 return -ENOMEM;
 875         }
 876         i2c_set_clientdata(client, state);
 877
 878         memset(state, 0, sizeof(*state));
 879         state->v4l2_std = V4L2_STD_NTSC;
 880         state->audmode = V4L2_TUNER_MODE_STEREO;
 881         state->volume = 58880;  /* 0db gain */
 882         state->balance = 32768; /* 0db gain */
 883         state->bass = 32768;
 884         state->treble = 32768;
 885         state->loudness = 0;
 886         state->input = -1;
 887         state->muted = 0;
 888         state->i2s_mode = 0;
 889         init_waitqueue_head(&state->wq);
 890         /* These are the reset input/output positions */
 891         state->routing.input = MSP_INPUT_DEFAULT;
 892         state->routing.output = MSP_OUTPUT_DEFAULT;
 893
 894         state->rev1 = msp_read_dsp(client, 0x1e);
 895         if (state->rev1 != -1)
 896                 state->rev2 = msp_read_dsp(client, 0x1f);
 897         v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
 898         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
 899                 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
 900                 kfree(state);
 901                 kfree(client);
 902                 return -1;
 903         }
 904
 905         msp_set_audio(client);
 906
 907         msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
 908         msp_product = (state->rev2 >> 8) & 0xff;
 909         msp_prod_hi = msp_product / 10;
 910         msp_prod_lo = msp_product % 10;
 911         msp_revision = (state->rev1 & 0x0f) + '@';
 912         msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
 913         msp_rom = state->rev2 & 0x1f;
 914         snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
 915                         msp_family, msp_product,
 916                         msp_revision, msp_hard, msp_rom);
 917
 918         /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
 919         state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
 920         /* Has radio support: was added with revision G */
 921         state->has_radio = msp_revision >= 'G';
 922         /* Has headphones output: not for stripped down products */
 923         state->has_headphones = msp_prod_lo < 5;
 924         /* Has scart2 input: not in stripped down products of the '3' family */
 925         state->has_scart2 = msp_family >= 4 || msp_prod_lo < 7;
 926         /* Has scart3 input: not in stripped down products of the '3' family */
 927         state->has_scart3 = msp_family >= 4 || msp_prod_lo < 5;
 928         /* Has scart4 input: not in pre D revisions, not in stripped D revs */
 929         state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
 930         /* Has scart2 output: not in stripped down products of the '3' family */
 931         state->has_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
 932         /* Has scart2 a volume control? Not in pre-D revisions. */
 933         state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart2_out;
 934         /* Has a configurable i2s out? */
 935         state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
 936         /* Has subwoofer output: not in pre-D revs and not in stripped down products */
 937         state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
 938         /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
 939            stripped down products */
 940         state->has_sound_processing = msp_prod_lo < 7;
 941         /* Has Virtual Dolby Surround: only in msp34x1 */
 942         state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
 943         /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
 944         state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
 945
 946         state->opmode = opmode;
 947         if (state->opmode == OPMODE_AUTO) {
 948                 /* MSP revision G and up have both autodetect and autoselect */
 949                 if (msp_revision >= 'G')
 950                         state->opmode = OPMODE_AUTOSELECT;
 951                 /* MSP revision D and up have autodetect */
 952                 else if (msp_revision >= 'D')
 953                         state->opmode = OPMODE_AUTODETECT;
 954                 else
 955                         state->opmode = OPMODE_MANUAL;
 956         }
 957
 958         /* hello world :-) */
 959         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
 960         v4l_info(client, "%s ", client->name);
 961         if (state->has_nicam && state->has_radio)
 962                 printk("supports nicam and radio, ");
 963         else if (state->has_nicam)
 964                 printk("supports nicam, ");
 965         else if (state->has_radio)
 966                 printk("supports radio, ");
 967         printk("mode is ");
 968
 969         /* version-specific initialization */
 970         switch (state->opmode) {
 971         case OPMODE_MANUAL:
 972                 printk("manual");
 973                 thread_func = msp3400c_thread;
 974                 break;
 975         case OPMODE_AUTODETECT:
 976                 printk("autodetect");
 977                 thread_func = msp3410d_thread;
 978                 break;
 979         case OPMODE_AUTOSELECT:
 980                 printk("autodetect and autoselect");
 981                 thread_func = msp34xxg_thread;
 982                 break;
 983         }
 984         printk("\n");
 985
 986         /* startup control thread if needed */
 987         if (thread_func) {
 988                 state->kthread = kthread_run(thread_func, client, "msp34xx");
 989
 990                 if (state->kthread == NULL)
 991                         v4l_warn(client, "kernel_thread() failed\n");
 992                 msp_wake_thread(client);
 993         }
 994
 995         /* done */
 996         i2c_attach_client(client);
 997
 998         return 0;
 999 }
1000
1001 static int msp_probe(struct i2c_adapter *adapter)
1002 {
1003         if (adapter->class & I2C_CLASS_TV_ANALOG)
1004                 return i2c_probe(adapter, &addr_data, msp_attach);
1005         return 0;
1006 }
1007
1008 static int msp_detach(struct i2c_client *client)
1009 {
1010         struct msp_state *state = i2c_get_clientdata(client);
1011         int err;
1012
1013         /* shutdown control thread */
1014         if (state->kthread) {
1015                 state->restart = 1;
1016                 kthread_stop(state->kthread);
1017         }
1018         msp_reset(client);
1019
1020         err = i2c_detach_client(client);
1021         if (err) {
1022                 return err;
1023         }
1024
1025         kfree(state);
1026         kfree(client);
1027         return 0;
1028 }
1029
1030 /* ----------------------------------------------------------------------- */
1031
1032 /* i2c implementation */
1033 static struct i2c_driver i2c_driver = {
1034         .id             = I2C_DRIVERID_MSP3400,
1035         .attach_adapter = msp_probe,
1036         .detach_client  = msp_detach,
1037         .command        = msp_command,
1038         .driver = {
1039                 .name    = "msp3400",
1040                 .suspend = msp_suspend,
1041                 .resume  = msp_resume,
1042         },
1043 };
1044
1045 static int __init msp3400_init_module(void)
1046 {
1047         return i2c_add_driver(&i2c_driver);
1048 }
1049
1050 static void __exit msp3400_cleanup_module(void)
1051 {
1052         i2c_del_driver(&i2c_driver);
1053 }
1054
1055 module_init(msp3400_init_module);
1056 module_exit(msp3400_cleanup_module);
1057
1058 /*
1059  * Overrides for Emacs so that we follow Linus's tabbing style.
1060  * ---------------------------------------------------------------------------
1061  * Local variables:
1062  * c-basic-offset: 8
1063  * End:
1064  */