SAFE public projects git trees. - safe/jmp/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         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         int scart = -1;
 559
 560         if (msp_debug >= 2)
 561                 v4l_i2c_print_ioctl(client, cmd);
 562
 563         switch (cmd) {
 564         case AUDC_SET_RADIO:
 565                 if (state->radio)
 566                         return 0;
 567                 state->radio = 1;
 568                 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
 569                 state->watch_stereo = 0;
 570                 switch (state->opmode) {
 571                 case OPMODE_MANUAL:
 572                         /* set msp3400 to FM radio mode */
 573                         msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
 574                         msp3400c_set_carrier(client, MSP_CARRIER(10.7),
 575                                             MSP_CARRIER(10.7));
 576                         msp_set_audio(client);
 577                         break;
 578                 case OPMODE_AUTODETECT:
 579                 case OPMODE_AUTOSELECT:
 580                         /* the thread will do for us */
 581                         msp_wake_thread(client);
 582                         break;
 583                 }
 584                 break;
 585
 586         /* --- v4l ioctls --- */
 587         /* take care: bttv does userspace copying, we'll get a
 588            kernel pointer here... */
 589         case VIDIOCGAUDIO:
 590         {
 591                 struct video_audio *va = arg;
 592
 593                 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
 594                 if (state->has_sound_processing)
 595                         va->flags |= VIDEO_AUDIO_BALANCE |
 596                                 VIDEO_AUDIO_BASS |
 597                                 VIDEO_AUDIO_TREBLE;
 598                 if (state->muted)
 599                         va->flags |= VIDEO_AUDIO_MUTE;
 600                 va->volume = state->volume;
 601                 va->balance = state->volume ? state->balance : 32768;
 602                 va->bass = state->bass;
 603                 va->treble = state->treble;
 604
 605                 if (state->radio)
 606                         break;
 607                 if (state->opmode == OPMODE_AUTOSELECT)
 608                         msp_detect_stereo(client);
 609                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
 610                 break;
 611         }
 612
 613         case VIDIOCSAUDIO:
 614         {
 615                 struct video_audio *va = arg;
 616
 617                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
 618                 state->volume = va->volume;
 619                 state->balance = va->balance;
 620                 state->bass = va->bass;
 621                 state->treble = va->treble;
 622                 msp_set_audio(client);
 623
 624                 if (va->mode != 0 && state->radio == 0) {
 625                         state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
 626                         msp_set_audmode(client);
 627                 }
 628                 break;
 629         }
 630
 631         case VIDIOCSCHAN:
 632         {
 633                 struct video_channel *vc = arg;
 634                 int update = 0;
 635                 v4l2_std_id std;
 636
 637                 if (state->radio)
 638                         update = 1;
 639                 state->radio = 0;
 640                 if (vc->norm == VIDEO_MODE_PAL)
 641                         std = V4L2_STD_PAL;
 642                 else if (vc->norm == VIDEO_MODE_SECAM)
 643                         std = V4L2_STD_SECAM;
 644                 else
 645                         std = V4L2_STD_NTSC;
 646                 if (std != state->v4l2_std) {
 647                         state->v4l2_std = std;
 648                         update = 1;
 649                 }
 650                 if (update)
 651                         msp_wake_thread(client);
 652                 break;
 653         }
 654
 655         case VIDIOCSFREQ:
 656         case VIDIOC_S_FREQUENCY:
 657         {
 658                 /* new channel -- kick audio carrier scan */
 659                 msp_wake_thread(client);
 660                 break;
 661         }
 662
 663         /* msp34xx specific */
 664         case MSP_SET_MATRIX:
 665         {
 666                 struct msp_matrix *mspm = arg;
 667
 668                 msp_set_scart(client, mspm->input - 1, mspm->output);
 669                 break;
 670         }
 671
 672         /* --- v4l2 ioctls --- */
 673         case VIDIOC_S_STD:
 674         {
 675                 v4l2_std_id *id = arg;
 676                 int update = state->radio || state->v4l2_std != *id;
 677
 678                 state->v4l2_std = *id;
 679                 state->radio = 0;
 680                 if (update)
 681                         msp_wake_thread(client);
 682                 return 0;
 683         }
 684
 685         case VIDIOC_S_AUDIO:
 686         {
 687                 struct v4l2_audio *sarg = arg;
 688
 689                 switch (sarg->index) {
 690                 case TVAUDIO_INPUT_RADIO:
 691                         /* Hauppauge uses IN2 for the radio */
 692                         state->mode = MSP_MODE_FM_RADIO;
 693                         scart       = SCART_IN2;
 694                         break;
 695                 case TVAUDIO_INPUT_EXTERN:
 696                         /* IN1 is often used for external input ... */
 697                         state->mode = MSP_MODE_EXTERN;
 698                         scart       = SCART_IN1;
 699                         break;
 700                 case TVAUDIO_INPUT_INTERN:
 701                         /* ... sometimes it is IN2 through ;) */
 702                         state->mode = MSP_MODE_EXTERN;
 703                         scart       = SCART_IN2;
 704                         break;
 705                 case TVAUDIO_INPUT_TUNER:
 706                         state->mode = -1;
 707                         break;
 708                 }
 709                 if (scart >= 0) {
 710                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 711                         msp_set_scart(client, scart, 0);
 712                 }
 713                 msp_set_audmode(client);
 714                 msp_wake_thread(client);
 715                 break;
 716         }
 717
 718         case VIDIOC_G_TUNER:
 719         {
 720                 struct v4l2_tuner *vt = arg;
 721
 722                 if (state->radio)
 723                         break;
 724                 if (state->opmode == OPMODE_AUTOSELECT)
 725                         msp_detect_stereo(client);
 726                 vt->audmode    = state->audmode;
 727                 vt->rxsubchans = state->rxsubchans;
 728                 vt->capability = V4L2_TUNER_CAP_STEREO |
 729                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 730                 break;
 731         }
 732
 733         case VIDIOC_S_TUNER:
 734         {
 735                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 736
 737                 if (state->radio)  /* TODO: add mono/stereo support for radio */
 738                         break;
 739                 state->audmode = vt->audmode;
 740                 /* only set audmode */
 741                 msp_set_audmode(client);
 742                 break;
 743         }
 744
 745         case VIDIOC_G_AUDOUT:
 746         {
 747                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 748                 int idx = a->index;
 749
 750                 memset(a, 0, sizeof(*a));
 751
 752                 switch (idx) {
 753                 case 0:
 754                         strcpy(a->name, "Scart1 Out");
 755                         break;
 756                 case 1:
 757                         strcpy(a->name, "Scart2 Out");
 758                         break;
 759                 case 2:
 760                         strcpy(a->name, "I2S Out");
 761                         break;
 762                 default:
 763                         return -EINVAL;
 764                 }
 765                 break;
 766         }
 767
 768         case VIDIOC_S_AUDOUT:
 769         {
 770                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 771
 772                 if (a->index < 0 || a->index > 2)
 773                         return -EINVAL;
 774
 775                 v4l_dbg(1, msp_debug, client, "Setting audio out on msp34xx to input %i\n", a->index);
 776                 msp_set_scart(client, state->in_scart, a->index + 1);
 777
 778                 break;
 779         }
 780
 781         case VIDIOC_INT_I2S_CLOCK_FREQ:
 782         {
 783                 u32 *a = (u32 *)arg;
 784
 785                 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
 786
 787                 switch (*a) {
 788                         case 1024000:
 789                                 state->i2s_mode = 0;
 790                                 break;
 791                         case 2048000:
 792                                 state->i2s_mode = 1;
 793                                 break;
 794                         default:
 795                                 return -EINVAL;
 796                 }
 797                 break;
 798         }
 799
 800         case VIDIOC_QUERYCTRL:
 801         {
 802                 struct v4l2_queryctrl *qc = arg;
 803                 int i;
 804
 805                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
 806                         if (qc->id && qc->id == msp_qctrl_std[i].id) {
 807                                 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
 808                                 return 0;
 809                         }
 810                 if (!state->has_sound_processing)
 811                         return -EINVAL;
 812                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
 813                         if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
 814                                 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
 815                                 return 0;
 816                         }
 817                 return -EINVAL;
 818         }
 819
 820         case VIDIOC_G_CTRL:
 821                 return msp_get_ctrl(client, arg);
 822
 823         case VIDIOC_S_CTRL:
 824                 return msp_set_ctrl(client, arg);
 825
 826         case VIDIOC_LOG_STATUS:
 827         {
 828                 const char *p;
 829
 830                 if (state->opmode == OPMODE_AUTOSELECT)
 831                         msp_detect_stereo(client);
 832                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 833                                 client->name, state->rev1, state->rev2);
 834                 v4l_info(client, "Audio:    volume %d%s\n",
 835                                 state->volume, state->muted ? " (muted)" : "");
 836                 if (state->has_sound_processing) {
 837                         v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
 838                                         state->balance, state->bass, state->treble,
 839                                         state->loudness ? "on" : "off");
 840                 }
 841                 switch (state->mode) {
 842                 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
 843                 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
 844                 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
 845                 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
 846                 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
 847                 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
 848                 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
 849                 case MSP_MODE_BTSC: p = "BTSC"; break;
 850                 case MSP_MODE_EXTERN: p = "External input"; break;
 851                 default: p = "unknown"; break;
 852                 }
 853                 if (state->opmode == OPMODE_MANUAL) {
 854                         v4l_info(client, "Mode:     %s (%s%s)\n", p,
 855                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 856                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 857                 } else {
 858                         if (state->opmode == OPMODE_AUTODETECT)
 859                                 v4l_info(client, "Mode:     %s\n", p);
 860                         v4l_info(client, "Standard: %s (%s%s)\n",
 861                                 msp_standard_std_name(state->std),
 862                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 863                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 864                 }
 865                 v4l_info(client, "Audmode:  0x%04x\n", state->audmode);
 866                 v4l_info(client, "ACB:      0x%04x\n", state->acb);
 867                 break;
 868         }
 869
 870         default:
 871                 /* unknown */
 872                 return -EINVAL;
 873         }
 874         return 0;
 875 }
 876
 877 static int msp_suspend(struct device * dev, pm_message_t state)
 878 {
 879         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 880
 881         v4l_dbg(1, msp_debug, client, "suspend\n");
 882         msp_reset(client);
 883         return 0;
 884 }
 885
 886 static int msp_resume(struct device * dev)
 887 {
 888         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
 889
 890         v4l_dbg(1, msp_debug, client, "resume\n");
 891         msp_wake_thread(client);
 892         return 0;
 893 }
 894
 895 /* ----------------------------------------------------------------------- */
 896
 897 static struct i2c_driver i2c_driver;
 898
 899 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
 900 {
 901         struct i2c_client *client;
 902         struct msp_state *state;
 903         int (*thread_func)(void *data) = NULL;
 904         int msp_hard;
 905         int msp_family;
 906         int msp_revision;
 907         int msp_product, msp_prod_hi, msp_prod_lo;
 908         int msp_rom;
 909
 910         client = kmalloc(sizeof(*client), GFP_KERNEL);
 911         if (client == NULL)
 912                 return -ENOMEM;
 913         memset(client, 0, sizeof(*client));
 914         client->addr = address;
 915         client->adapter = adapter;
 916         client->driver = &i2c_driver;
 917         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
 918
 919         if (msp_reset(client) == -1) {
 920                 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
 921                 kfree(client);
 922                 return -1;
 923         }
 924
 925         state = kmalloc(sizeof(*state), GFP_KERNEL);
 926         if (state == NULL) {
 927                 kfree(client);
 928                 return -ENOMEM;
 929         }
 930         i2c_set_clientdata(client, state);
 931
 932         memset(state, 0, sizeof(*state));
 933         state->v4l2_std = V4L2_STD_NTSC;
 934         state->audmode = V4L2_TUNER_MODE_LANG1;
 935         state->volume = 58880;  /* 0db gain */
 936         state->balance = 32768; /* 0db gain */
 937         state->bass = 32768;
 938         state->treble = 32768;
 939         state->loudness = 0;
 940         state->input = -1;
 941         state->muted = 0;
 942         state->i2s_mode = 0;
 943         init_waitqueue_head(&state->wq);
 944
 945         state->rev1 = msp_read_dsp(client, 0x1e);
 946         if (state->rev1 != -1)
 947                 state->rev2 = msp_read_dsp(client, 0x1f);
 948         v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
 949         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
 950                 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
 951                 kfree(state);
 952                 kfree(client);
 953                 return -1;
 954         }
 955
 956         msp_set_audio(client);
 957
 958         msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
 959         msp_product = (state->rev2 >> 8) & 0xff;
 960         msp_prod_hi = msp_product / 10;
 961         msp_prod_lo = msp_product % 10;
 962         msp_revision = (state->rev1 & 0x0f) + '@';
 963         msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
 964         msp_rom = state->rev2 & 0x1f;
 965         snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
 966                         msp_family, msp_product,
 967                         msp_revision, msp_hard, msp_rom);
 968
 969         /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
 970         state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
 971         /* Has radio support: was added with revision G */
 972         state->has_radio = msp_revision >= 'G';
 973         /* Has headphones output: not for stripped down products */
 974         state->has_headphones = msp_prod_lo < 5;
 975         /* Has scart4 input: not in pre D revisions, not in stripped D revs */
 976         state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
 977         /* Has scart2 and scart3 inputs and scart2 output: not in stripped
 978            down products of the '3' family */
 979         state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
 980         /* Has scart2 a volume control? Not in pre-D revisions. */
 981         state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
 982         /* Has a configurable i2s out? */
 983         state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
 984         /* Has subwoofer output: not in pre-D revs and not in stripped down products */
 985         state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
 986         /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
 987            stripped down products */
 988         state->has_sound_processing = msp_prod_lo < 7;
 989         /* Has Virtual Dolby Surround: only in msp34x1 */
 990         state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
 991         /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
 992         state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
 993
 994         state->opmode = opmode;
 995         if (state->opmode == OPMODE_AUTO) {
 996                 /* MSP revision G and up have both autodetect and autoselect */
 997                 if (msp_revision >= 'G')
 998                         state->opmode = OPMODE_AUTOSELECT;
 999                 /* MSP revision D and up have autodetect */
1000                 else if (msp_revision >= 'D')
1001                         state->opmode = OPMODE_AUTODETECT;
1002                 else
1003                         state->opmode = OPMODE_MANUAL;
1004         }
1005
1006         /* hello world :-) */
1007         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1008         v4l_info(client, "%s ", client->name);
1009         if (state->has_nicam && state->has_radio)
1010                 printk("supports nicam and radio, ");
1011         else if (state->has_nicam)
1012                 printk("supports nicam, ");
1013         else if (state->has_radio)
1014                 printk("supports radio, ");
1015         printk("mode is ");
1016
1017         /* version-specific initialization */
1018         switch (state->opmode) {
1019         case OPMODE_MANUAL:
1020                 printk("manual");
1021                 thread_func = msp3400c_thread;
1022                 break;
1023         case OPMODE_AUTODETECT:
1024                 printk("autodetect");
1025                 thread_func = msp3410d_thread;
1026                 break;
1027         case OPMODE_AUTOSELECT:
1028                 printk("autodetect and autoselect");
1029                 thread_func = msp34xxg_thread;
1030                 break;
1031         }
1032         printk("\n");
1033
1034         /* startup control thread if needed */
1035         if (thread_func) {
1036                 state->kthread = kthread_run(thread_func, client, "msp34xx");
1037
1038                 if (state->kthread == NULL)
1039                         v4l_warn(client, "kernel_thread() failed\n");
1040                 msp_wake_thread(client);
1041         }
1042
1043         /* done */
1044         i2c_attach_client(client);
1045
1046         return 0;
1047 }
1048
1049 static int msp_probe(struct i2c_adapter *adapter)
1050 {
1051         if (adapter->class & I2C_CLASS_TV_ANALOG)
1052                 return i2c_probe(adapter, &addr_data, msp_attach);
1053         return 0;
1054 }
1055
1056 static int msp_detach(struct i2c_client *client)
1057 {
1058         struct msp_state *state = i2c_get_clientdata(client);
1059         int err;
1060
1061         /* shutdown control thread */
1062         if (state->kthread) {
1063                 state->restart = 1;
1064                 kthread_stop(state->kthread);
1065         }
1066         msp_reset(client);
1067
1068         err = i2c_detach_client(client);
1069         if (err) {
1070                 return err;
1071         }
1072
1073         kfree(state);
1074         kfree(client);
1075         return 0;
1076 }
1077
1078 /* ----------------------------------------------------------------------- */
1079
1080 /* i2c implementation */
1081 static struct i2c_driver i2c_driver = {
1082         .id             = I2C_DRIVERID_MSP3400,
1083         .attach_adapter = msp_probe,
1084         .detach_client  = msp_detach,
1085         .command        = msp_command,
1086         .driver = {
1087                 .name    = "msp3400",
1088                 .suspend = msp_suspend,
1089                 .resume  = msp_resume,
1090         },
1091 };
1092
1093 static int __init msp3400_init_module(void)
1094 {
1095         return i2c_add_driver(&i2c_driver);
1096 }
1097
1098 static void __exit msp3400_cleanup_module(void)
1099 {
1100         i2c_del_driver(&i2c_driver);
1101 }
1102
1103 module_init(msp3400_init_module);
1104 module_exit(msp3400_cleanup_module);
1105
1106 /*
1107  * Overrides for Emacs so that we follow Linus's tabbing style.
1108  * ---------------------------------------------------------------------------
1109  * Local variables:
1110  * c-basic-offset: 8
1111  * End:
1112  */