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/audiochip.h>
  57 #include <linux/kthread.h>
  58 #include <linux/suspend.h>
  59 #include "msp3400.h"
  60
  61 /* ---------------------------------------------------------------------- */
  62
  63 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
  64 MODULE_AUTHOR("Gerd Knorr");
  65 MODULE_LICENSE("GPL");
  66
  67 /* module parameters */
  68 static int opmode   = OPMODE_AUTO;
  69 int msp_debug;           /* msp_debug output */
  70 int msp_once;            /* no continous stereo monitoring */
  71 int msp_amsound;         /* hard-wire AM sound at 6.5 Hz (france),
  72                             the autoscan seems work well only with FM... */
  73 int msp_standard = 1;    /* Override auto detect of audio msp_standard, if needed. */
  74 int msp_dolby;
  75
  76 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
  77                                         (msp34xxg only) 0x00a0-0x03c0 */
  78
  79 /* read-only */
  80 module_param(opmode,           int, 0444);
  81
  82 /* read-write */
  83 module_param_named(once,msp_once,                      bool, 0644);
  84 module_param_named(debug,msp_debug,                    int,  0644);
  85 module_param_named(stereo_threshold,msp_stereo_thresh, int,  0644);
  86 module_param_named(standard,msp_standard,              int,  0644);
  87 module_param_named(amsound,msp_amsound,                bool, 0644);
  88 module_param_named(dolby,msp_dolby,                    bool, 0644);
  89
  90 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
  91 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
  92 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
  93 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
  94 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
  95 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
  96 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
  97
  98 /* ---------------------------------------------------------------------- */
  99
 100 /* control subaddress */
 101 #define I2C_MSP_CONTROL 0x00
 102 /* demodulator unit subaddress */
 103 #define I2C_MSP_DEM     0x10
 104 /* DSP unit subaddress */
 105 #define I2C_MSP_DSP     0x12
 106
 107 /* Addresses to scan */
 108 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
 109 I2C_CLIENT_INSMOD;
 110
 111 /* ----------------------------------------------------------------------- */
 112 /* functions for talking to the MSP3400C Sound processor                   */
 113
 114 int msp_reset(struct i2c_client *client)
 115 {
 116         /* reset and read revision code */
 117         static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
 118         static u8 reset_on[3]  = { I2C_MSP_CONTROL, 0x00, 0x00 };
 119         static u8 write[3]     = { I2C_MSP_DSP + 1, 0x00, 0x1e };
 120         u8 read[2];
 121         struct i2c_msg reset[2] = {
 122                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
 123                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
 124         };
 125         struct i2c_msg test[2] = {
 126                 { client->addr, 0,        3, write },
 127                 { client->addr, I2C_M_RD, 2, read  },
 128         };
 129
 130         v4l_dbg(3, msp_debug, client, "msp_reset\n");
 131         if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
 132             i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
 133             i2c_transfer(client->adapter, test, 2) != 2) {
 134                 v4l_err(client, "chip reset failed\n");
 135                 return -1;
 136         }
 137         return 0;
 138 }
 139
 140 static int msp_read(struct i2c_client *client, int dev, int addr)
 141 {
 142         int err, retval;
 143         u8 write[3];
 144         u8 read[2];
 145         struct i2c_msg msgs[2] = {
 146                 { client->addr, 0,        3, write },
 147                 { client->addr, I2C_M_RD, 2, read  }
 148         };
 149
 150         write[0] = dev + 1;
 151         write[1] = addr >> 8;
 152         write[2] = addr & 0xff;
 153
 154         for (err = 0; err < 3; err++) {
 155                 if (i2c_transfer(client->adapter, msgs, 2) == 2)
 156                         break;
 157                 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
 158                        dev, addr);
 159                 current->state = TASK_INTERRUPTIBLE;
 160                 schedule_timeout(msecs_to_jiffies(10));
 161         }
 162         if (err == 3) {
 163                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 164                 msp_reset(client);
 165                 return -1;
 166         }
 167         retval = read[0] << 8 | read[1];
 168         v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
 169         return retval;
 170 }
 171
 172 int msp_read_dem(struct i2c_client *client, int addr)
 173 {
 174         return msp_read(client, I2C_MSP_DEM, addr);
 175 }
 176
 177 int msp_read_dsp(struct i2c_client *client, int addr)
 178 {
 179         return msp_read(client, I2C_MSP_DSP, addr);
 180 }
 181
 182 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
 183 {
 184         int err;
 185         u8 buffer[5];
 186
 187         buffer[0] = dev;
 188         buffer[1] = addr >> 8;
 189         buffer[2] = addr &  0xff;
 190         buffer[3] = val  >> 8;
 191         buffer[4] = val  &  0xff;
 192
 193         v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
 194         for (err = 0; err < 3; err++) {
 195                 if (i2c_master_send(client, buffer, 5) == 5)
 196                         break;
 197                 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
 198                        dev, addr);
 199                 current->state = TASK_INTERRUPTIBLE;
 200                 schedule_timeout(msecs_to_jiffies(10));
 201         }
 202         if (err == 3) {
 203                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
 204                 msp_reset(client);
 205                 return -1;
 206         }
 207         return 0;
 208 }
 209
 210 int msp_write_dem(struct i2c_client *client, int addr, int val)
 211 {
 212         return msp_write(client, I2C_MSP_DEM, addr, val);
 213 }
 214
 215 int msp_write_dsp(struct i2c_client *client, int addr, int val)
 216 {
 217         return msp_write(client, I2C_MSP_DSP, addr, val);
 218 }
 219
 220 /* ----------------------------------------------------------------------- *
 221  * bits  9  8  5 - SCART DSP input Select:
 222  *       0  0  0 - SCART 1 to DSP input (reset position)
 223  *       0  1  0 - MONO to DSP input
 224  *       1  0  0 - SCART 2 to DSP input
 225  *       1  1  1 - Mute DSP input
 226  *
 227  * bits 11 10  6 - SCART 1 Output Select:
 228  *       0  0  0 - undefined (reset position)
 229  *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
 230  *       1  0  0 - MONO input to SCART 1 Output
 231  *       1  1  0 - SCART 1 DA to SCART 1 Output
 232  *       0  0  1 - SCART 2 DA to SCART 1 Output
 233  *       0  1  1 - SCART 1 Input to SCART 1 Output
 234  *       1  1  1 - Mute SCART 1 Output
 235  *
 236  * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
 237  *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
 238  *       0  1  0 - SCART 1 Input to SCART 2 Output
 239  *       1  0  0 - MONO input to SCART 2 Output
 240  *       0  0  1 - SCART 2 DA to SCART 2 Output
 241  *       0  1  1 - SCART 2 Input to SCART 2 Output
 242  *       1  1  0 - Mute SCART 2 Output
 243  *
 244  * Bits 4 to 0 should be zero.
 245  * ----------------------------------------------------------------------- */
 246
 247 static int scarts[3][9] = {
 248         /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
 249         /* SCART DSP Input select */
 250         { 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
 251         /* SCART1 Output select */
 252         { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
 253         /* SCART2 Output select */
 254         { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
 255 };
 256
 257 static char *scart_names[] = {
 258         "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
 259 };
 260
 261 void msp_set_scart(struct i2c_client *client, int in, int out)
 262 {
 263         struct msp_state *state = i2c_get_clientdata(client);
 264
 265         state->in_scart=in;
 266
 267         if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
 268                 if (-1 == scarts[out][in])
 269                         return;
 270
 271                 state->acb &= ~scarts[out][SCART_MASK];
 272                 state->acb |=  scarts[out][in];
 273         } else
 274                 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
 275
 276         v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
 277                                                 scart_names[in], out, state->acb);
 278         msp_write_dsp(client, 0x13, state->acb);
 279
 280         /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
 281         msp_write_dem(client, 0x40, state->i2s_mode);
 282 }
 283
 284 void msp_set_mute(struct i2c_client *client)
 285 {
 286         struct msp_state *state = i2c_get_clientdata(client);
 287
 288         v4l_dbg(1, msp_debug, client, "mute audio\n");
 289         msp_write_dsp(client, 0x0000, 0);
 290         msp_write_dsp(client, 0x0007, 1);
 291         if (state->has_scart2_out_volume)
 292                 msp_write_dsp(client, 0x0040, 1);
 293         if (state->has_headphones)
 294                 msp_write_dsp(client, 0x0006, 0);
 295 }
 296
 297 void msp_set_audio(struct i2c_client *client)
 298 {
 299         struct msp_state *state = i2c_get_clientdata(client);
 300         int bal = 0, bass, treble, loudness;
 301         int val = 0;
 302
 303         if (!state->muted)
 304                 val = (state->volume * 0x7f / 65535) << 8;
 305
 306         v4l_dbg(1, msp_debug, client, "mute=%s volume=%d\n",
 307                 state->muted ? "on" : "off", state->volume);
 308
 309         msp_write_dsp(client, 0x0000, val);
 310         msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
 311         if (state->has_scart2_out_volume)
 312                 msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
 313         if (state->has_headphones)
 314                 msp_write_dsp(client, 0x0006, val);
 315         if (!state->has_sound_processing)
 316                 return;
 317
 318         if (val)
 319                 bal = (u8)((state->balance / 256) - 128);
 320         bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
 321         treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
 322         loudness = state->loudness ? ((5 * 4) << 8) : 0;
 323
 324         v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
 325                 state->balance, state->bass, state->treble, state->loudness);
 326
 327         msp_write_dsp(client, 0x0001, bal << 8);
 328         msp_write_dsp(client, 0x0002, bass);
 329         msp_write_dsp(client, 0x0003, treble);
 330         msp_write_dsp(client, 0x0004, loudness);
 331         if (!state->has_headphones)
 332                 return;
 333         msp_write_dsp(client, 0x0030, bal << 8);
 334         msp_write_dsp(client, 0x0031, bass);
 335         msp_write_dsp(client, 0x0032, treble);
 336         msp_write_dsp(client, 0x0033, loudness);
 337 }
 338
 339 int msp_modus(struct i2c_client *client)
 340 {
 341         struct msp_state *state = i2c_get_clientdata(client);
 342
 343         if (state->radio) {
 344                 v4l_dbg(1, msp_debug, client, "video mode selected to Radio\n");
 345                 return 0x0003;
 346         }
 347
 348         if (state->v4l2_std & V4L2_STD_PAL) {
 349                 v4l_dbg(1, msp_debug, client, "video mode selected to PAL\n");
 350
 351 #if 1
 352                 /* experimental: not sure this works with all chip versions */
 353                 return 0x7003;
 354 #else
 355                 /* previous value, try this if it breaks ... */
 356                 return 0x1003;
 357 #endif
 358         }
 359         if (state->v4l2_std & V4L2_STD_NTSC) {
 360                 v4l_dbg(1, msp_debug, client, "video mode selected to NTSC\n");
 361                 return 0x2003;
 362         }
 363         if (state->v4l2_std & V4L2_STD_SECAM) {
 364                 v4l_dbg(1, msp_debug, client, "video mode selected to SECAM\n");
 365                 return 0x0003;
 366         }
 367         return 0x0003;
 368 }
 369
 370 /* ------------------------------------------------------------------------ */
 371
 372
 373 static void msp_wake_thread(struct i2c_client *client)
 374 {
 375         struct msp_state *state = i2c_get_clientdata(client);
 376
 377         if (NULL == state->kthread)
 378                 return;
 379         msp_set_mute(client);
 380         state->watch_stereo = 0;
 381         state->restart = 1;
 382         wake_up_interruptible(&state->wq);
 383 }
 384
 385 int msp_sleep(struct msp_state *state, int timeout)
 386 {
 387         DECLARE_WAITQUEUE(wait, current);
 388
 389         add_wait_queue(&state->wq, &wait);
 390         if (!kthread_should_stop()) {
 391                 if (timeout < 0) {
 392                         set_current_state(TASK_INTERRUPTIBLE);
 393                         schedule();
 394                 } else {
 395                         schedule_timeout_interruptible
 396                                                 (msecs_to_jiffies(timeout));
 397                 }
 398         }
 399
 400         remove_wait_queue(&state->wq, &wait);
 401         try_to_freeze();
 402         return state->restart;
 403 }
 404
 405 /* ------------------------------------------------------------------------ */
 406
 407 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
 408 {
 409         int mode = 0;
 410
 411         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
 412                 mode |= VIDEO_SOUND_STEREO;
 413         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
 414                 mode |= VIDEO_SOUND_LANG2 | VIDEO_SOUND_STEREO;
 415         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
 416                 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_STEREO;
 417         if (mode == 0)
 418                 mode |= VIDEO_SOUND_MONO;
 419         return mode;
 420 }
 421
 422 static int msp_mode_v4l1_to_v4l2(int mode)
 423 {
 424         if (mode & VIDEO_SOUND_STEREO)
 425                 return V4L2_TUNER_MODE_STEREO;
 426         if (mode & VIDEO_SOUND_LANG2)
 427                 return V4L2_TUNER_MODE_LANG2;
 428         if (mode & VIDEO_SOUND_LANG1)
 429                 return V4L2_TUNER_MODE_LANG1;
 430         return V4L2_TUNER_MODE_MONO;
 431 }
 432
 433 static struct v4l2_queryctrl msp_qctrl_std[] = {
 434         {
 435                 .id            = V4L2_CID_AUDIO_VOLUME,
 436                 .name          = "Volume",
 437                 .minimum       = 0,
 438                 .maximum       = 65535,
 439                 .step          = 65535/100,
 440                 .default_value = 58880,
 441                 .flags         = 0,
 442                 .type          = V4L2_CTRL_TYPE_INTEGER,
 443         },{
 444                 .id            = V4L2_CID_AUDIO_MUTE,
 445                 .name          = "Mute",
 446                 .minimum       = 0,
 447                 .maximum       = 1,
 448                 .step          = 1,
 449                 .default_value = 1,
 450                 .flags         = 0,
 451                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 452         },
 453 };
 454
 455 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
 456         {
 457                 .id            = V4L2_CID_AUDIO_BALANCE,
 458                 .name          = "Balance",
 459                 .minimum       = 0,
 460                 .maximum       = 65535,
 461                 .step          = 65535/100,
 462                 .default_value = 32768,
 463                 .flags         = 0,
 464                 .type          = V4L2_CTRL_TYPE_INTEGER,
 465         },{
 466                 .id            = V4L2_CID_AUDIO_BASS,
 467                 .name          = "Bass",
 468                 .minimum       = 0,
 469                 .maximum       = 65535,
 470                 .step          = 65535/100,
 471                 .default_value = 32768,
 472                 .type          = V4L2_CTRL_TYPE_INTEGER,
 473         },{
 474                 .id            = V4L2_CID_AUDIO_TREBLE,
 475                 .name          = "Treble",
 476                 .minimum       = 0,
 477                 .maximum       = 65535,
 478                 .step          = 65535/100,
 479                 .default_value = 32768,
 480                 .type          = V4L2_CTRL_TYPE_INTEGER,
 481         },{
 482                 .id            = V4L2_CID_AUDIO_LOUDNESS,
 483                 .name          = "Loudness",
 484                 .minimum       = 0,
 485                 .maximum       = 1,
 486                 .step          = 1,
 487                 .default_value = 1,
 488                 .flags         = 0,
 489                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 490         },
 491 };
 492
 493
 494 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 495 {
 496         struct msp_state *state = i2c_get_clientdata(client);
 497
 498         switch (ctrl->id) {
 499         case V4L2_CID_AUDIO_VOLUME:
 500                 ctrl->value = state->volume;
 501                 break;
 502
 503         case V4L2_CID_AUDIO_MUTE:
 504                 ctrl->value = state->muted;
 505                 break;
 506
 507         case V4L2_CID_AUDIO_BALANCE:
 508                 if (!state->has_sound_processing)
 509                         return -EINVAL;
 510                 ctrl->value = state->balance;
 511                 break;
 512
 513         case V4L2_CID_AUDIO_BASS:
 514                 if (!state->has_sound_processing)
 515                         return -EINVAL;
 516                 ctrl->value = state->bass;
 517                 break;
 518
 519         case V4L2_CID_AUDIO_TREBLE:
 520                 if (!state->has_sound_processing)
 521                         return -EINVAL;
 522                 ctrl->value = state->treble;
 523                 break;
 524
 525         case V4L2_CID_AUDIO_LOUDNESS:
 526                 if (!state->has_sound_processing)
 527                         return -EINVAL;
 528                 ctrl->value = state->loudness;
 529                 break;
 530
 531         default:
 532                 return -EINVAL;
 533         }
 534         return 0;
 535 }
 536
 537 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 538 {
 539         struct msp_state *state = i2c_get_clientdata(client);
 540
 541         switch (ctrl->id) {
 542         case V4L2_CID_AUDIO_VOLUME:
 543                 state->volume = ctrl->value;
 544                 if (state->volume == 0)
 545                         state->balance = 32768;
 546                 break;
 547
 548         case V4L2_CID_AUDIO_MUTE:
 549                 if (ctrl->value < 0 || ctrl->value >= 2)
 550                         return -ERANGE;
 551                 state->muted = ctrl->value;
 552                 break;
 553
 554         case V4L2_CID_AUDIO_BASS:
 555                 if (!state->has_sound_processing)
 556                         return -EINVAL;
 557                 state->bass = ctrl->value;
 558                 break;
 559
 560         case V4L2_CID_AUDIO_TREBLE:
 561                 if (!state->has_sound_processing)
 562                         return -EINVAL;
 563                 state->treble = ctrl->value;
 564                 break;
 565
 566         case V4L2_CID_AUDIO_LOUDNESS:
 567                 if (!state->has_sound_processing)
 568                         return -EINVAL;
 569                 state->loudness = ctrl->value;
 570                 break;
 571
 572         case V4L2_CID_AUDIO_BALANCE:
 573                 if (!state->has_sound_processing)
 574                         return -EINVAL;
 575                 state->balance = ctrl->value;
 576                 break;
 577
 578         default:
 579                 return -EINVAL;
 580         }
 581         msp_set_audio(client);
 582         return 0;
 583 }
 584
 585 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 586 {
 587         struct msp_state *state = i2c_get_clientdata(client);
 588         u16 *sarg = arg;
 589         int scart = 0;
 590
 591         if (msp_debug >= 2)
 592                 v4l_i2c_print_ioctl(client, cmd);
 593
 594         switch (cmd) {
 595         case AUDC_SET_INPUT:
 596                 if (*sarg == state->input)
 597                         break;
 598                 state->input = *sarg;
 599                 switch (*sarg) {
 600                 case AUDIO_RADIO:
 601                         /* Hauppauge uses IN2 for the radio */
 602                         state->mode = MSP_MODE_FM_RADIO;
 603                         scart       = SCART_IN2;
 604                         break;
 605                 case AUDIO_EXTERN_1:
 606                         /* IN1 is often used for external input ... */
 607                         state->mode = MSP_MODE_EXTERN;
 608                         scart       = SCART_IN1;
 609                         break;
 610                 case AUDIO_EXTERN_2:
 611                         /* ... sometimes it is IN2 through ;) */
 612                         state->mode = MSP_MODE_EXTERN;
 613                         scart       = SCART_IN2;
 614                         break;
 615                 case AUDIO_TUNER:
 616                         state->mode = -1;
 617                         break;
 618                 default:
 619                         if (*sarg & AUDIO_MUTE)
 620                                 msp_set_scart(client, SCART_MUTE, 0);
 621                         break;
 622                 }
 623                 if (scart) {
 624                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 625                         msp_set_scart(client, scart, 0);
 626                         msp_write_dsp(client, 0x000d, 0x1900);
 627                         if (state->opmode != OPMODE_AUTOSELECT)
 628                                 msp_set_audmode(client);
 629                 }
 630                 msp_wake_thread(client);
 631                 break;
 632
 633         case AUDC_SET_RADIO:
 634                 if (state->radio)
 635                         return 0;
 636                 state->radio = 1;
 637                 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
 638                 state->watch_stereo = 0;
 639                 switch (state->opmode) {
 640                 case OPMODE_MANUAL:
 641                         /* set msp3400 to FM radio mode */
 642                         msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
 643                         msp3400c_set_carrier(client, MSP_CARRIER(10.7),
 644                                             MSP_CARRIER(10.7));
 645                         msp_set_audio(client);
 646                         break;
 647                 case OPMODE_AUTODETECT:
 648                 case OPMODE_AUTOSELECT:
 649                         /* the thread will do for us */
 650                         msp_wake_thread(client);
 651                         break;
 652                 }
 653                 break;
 654
 655         /* --- v4l ioctls --- */
 656         /* take care: bttv does userspace copying, we'll get a
 657            kernel pointer here... */
 658         case VIDIOCGAUDIO:
 659         {
 660                 struct video_audio *va = arg;
 661
 662                 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
 663                 if (state->has_sound_processing)
 664                         va->flags |= VIDEO_AUDIO_BALANCE |
 665                                 VIDEO_AUDIO_BASS |
 666                                 VIDEO_AUDIO_TREBLE;
 667                 if (state->muted)
 668                         va->flags |= VIDEO_AUDIO_MUTE;
 669                 va->volume = state->volume;
 670                 va->balance = state->volume ? state->balance : 32768;
 671                 va->bass = state->bass;
 672                 va->treble = state->treble;
 673
 674                 if (state->radio)
 675                         break;
 676                 if (state->opmode == OPMODE_AUTOSELECT)
 677                         msp_detect_stereo(client);
 678                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
 679                 break;
 680         }
 681
 682         case VIDIOCSAUDIO:
 683         {
 684                 struct video_audio *va = arg;
 685
 686                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
 687                 state->volume = va->volume;
 688                 state->balance = va->balance;
 689                 state->bass = va->bass;
 690                 state->treble = va->treble;
 691                 msp_set_audio(client);
 692
 693                 if (va->mode != 0 && state->radio == 0) {
 694                         state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
 695                 }
 696                 break;
 697         }
 698
 699         case VIDIOCSCHAN:
 700         {
 701                 struct video_channel *vc = arg;
 702                 int update = 0;
 703                 v4l2_std_id std;
 704
 705                 if (state->radio)
 706                         update = 1;
 707                 state->radio = 0;
 708                 if (vc->norm == VIDEO_MODE_PAL)
 709                         std = V4L2_STD_PAL;
 710                 else if (vc->norm == VIDEO_MODE_SECAM)
 711                         std = V4L2_STD_SECAM;
 712                 else
 713                         std = V4L2_STD_NTSC;
 714                 if (std != state->v4l2_std) {
 715                         state->v4l2_std = std;
 716                         update = 1;
 717                 }
 718                 if (update)
 719                         msp_wake_thread(client);
 720                 break;
 721         }
 722
 723         case VIDIOCSFREQ:
 724         case VIDIOC_S_FREQUENCY:
 725         {
 726                 /* new channel -- kick audio carrier scan */
 727                 msp_wake_thread(client);
 728                 break;
 729         }
 730
 731         /* msp34xx specific */
 732         case MSP_SET_MATRIX:
 733         {
 734                 struct msp_matrix *mspm = arg;
 735
 736                 msp_set_scart(client, mspm->input, mspm->output);
 737                 break;
 738         }
 739
 740         /* --- v4l2 ioctls --- */
 741         case VIDIOC_S_STD:
 742         {
 743                 v4l2_std_id *id = arg;
 744                 int update = state->radio || state->v4l2_std != *id;
 745
 746                 state->v4l2_std = *id;
 747                 state->radio = 0;
 748                 if (update)
 749                         msp_wake_thread(client);
 750                 return 0;
 751         }
 752
 753         case VIDIOC_ENUMINPUT:
 754         {
 755                 struct v4l2_input *i = arg;
 756
 757                 if (i->index != 0)
 758                         return -EINVAL;
 759
 760                 i->type = V4L2_INPUT_TYPE_TUNER;
 761                 switch (i->index) {
 762                 case AUDIO_RADIO:
 763                         strcpy(i->name, "Radio");
 764                         break;
 765                 case AUDIO_EXTERN_1:
 766                         strcpy(i->name, "Extern 1");
 767                         break;
 768                 case AUDIO_EXTERN_2:
 769                         strcpy(i->name, "Extern 2");
 770                         break;
 771                 case AUDIO_TUNER:
 772                         strcpy(i->name, "Television");
 773                         break;
 774                 default:
 775                         return -EINVAL;
 776                 }
 777                 return 0;
 778         }
 779
 780         case VIDIOC_G_AUDIO:
 781         {
 782                 struct v4l2_audio *a = arg;
 783
 784                 memset(a, 0, sizeof(*a));
 785
 786                 switch (a->index) {
 787                 case AUDIO_RADIO:
 788                         strcpy(a->name, "Radio");
 789                         break;
 790                 case AUDIO_EXTERN_1:
 791                         strcpy(a->name, "Extern 1");
 792                         break;
 793                 case AUDIO_EXTERN_2:
 794                         strcpy(a->name, "Extern 2");
 795                         break;
 796                 case AUDIO_TUNER:
 797                         strcpy(a->name, "Television");
 798                         break;
 799                 default:
 800                         return -EINVAL;
 801                 }
 802
 803                 a->capability = V4L2_AUDCAP_STEREO;
 804                 a->mode = 0;  /* TODO: add support for AVL */
 805                 break;
 806         }
 807
 808         case VIDIOC_S_AUDIO:
 809         {
 810                 struct v4l2_audio *sarg = arg;
 811
 812                 switch (sarg->index) {
 813                 case AUDIO_RADIO:
 814                         /* Hauppauge uses IN2 for the radio */
 815                         state->mode = MSP_MODE_FM_RADIO;
 816                         scart       = SCART_IN2;
 817                         break;
 818                 case AUDIO_EXTERN_1:
 819                         /* IN1 is often used for external input ... */
 820                         state->mode = MSP_MODE_EXTERN;
 821                         scart       = SCART_IN1;
 822                         break;
 823                 case AUDIO_EXTERN_2:
 824                         /* ... sometimes it is IN2 through ;) */
 825                         state->mode = MSP_MODE_EXTERN;
 826                         scart       = SCART_IN2;
 827                         break;
 828                 case AUDIO_TUNER:
 829                         state->mode = -1;
 830                         break;
 831                 }
 832                 if (scart) {
 833                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 834                         msp_set_scart(client, scart, 0);
 835                         msp_write_dsp(client, 0x000d, 0x1900);
 836                 }
 837                 msp_set_audmode(client);
 838                 msp_wake_thread(client);
 839                 break;
 840         }
 841
 842         case VIDIOC_G_TUNER:
 843         {
 844                 struct v4l2_tuner *vt = arg;
 845
 846                 if (state->radio)
 847                         break;
 848                 if (state->opmode == OPMODE_AUTOSELECT)
 849                         msp_detect_stereo(client);
 850                 vt->audmode    = state->audmode;
 851                 vt->rxsubchans = state->rxsubchans;
 852                 vt->capability = V4L2_TUNER_CAP_STEREO |
 853                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 854                 break;
 855         }
 856
 857         case VIDIOC_S_TUNER:
 858         {
 859                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 860
 861                 if (state->radio)  /* TODO: add mono/stereo support for radio */
 862                         break;
 863                 state->audmode = vt->audmode;
 864                 /* only set audmode */
 865                 msp_set_audmode(client);
 866                 break;
 867         }
 868
 869         case VIDIOC_G_AUDOUT:
 870         {
 871                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 872                 int idx = a->index;
 873
 874                 memset(a, 0, sizeof(*a));
 875
 876                 switch (idx) {
 877                 case 0:
 878                         strcpy(a->name, "Scart1 Out");
 879                         break;
 880                 case 1:
 881                         strcpy(a->name, "Scart2 Out");
 882                         break;
 883                 case 2:
 884                         strcpy(a->name, "I2S Out");
 885                         break;
 886                 default:
 887                         return -EINVAL;
 888                 }
 889                 break;
 890         }
 891
 892         case VIDIOC_S_AUDOUT:
 893         {
 894                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 895
 896                 if (a->index < 0 || a->index > 2)
 897                         return -EINVAL;
 898
 899                 v4l_dbg(1, msp_debug, client, "Setting audio out on msp34xx to input %i\n", a->index);
 900                 msp_set_scart(client, state->in_scart, a->index + 1);
 901
 902                 break;
 903         }
 904
 905         case VIDIOC_INT_I2S_CLOCK_FREQ:
 906         {
 907                 u32 *a = (u32 *)arg;
 908
 909                 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
 910
 911                 switch (*a) {
 912                         case 1024000:
 913                                 state->i2s_mode = 0;
 914                                 break;
 915                         case 2048000:
 916                                 state->i2s_mode = 1;
 917                                 break;
 918                         default:
 919                                 return -EINVAL;
 920                 }
 921                 break;
 922         }
 923
 924         case VIDIOC_QUERYCTRL:
 925         {
 926                 struct v4l2_queryctrl *qc = arg;
 927                 int i;
 928
 929                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
 930                         if (qc->id && qc->id == msp_qctrl_std[i].id) {
 931                                 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
 932                                 return 0;
 933                         }
 934                 if (!state->has_sound_processing)
 935                         return -EINVAL;
 936                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
 937                         if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
 938                                 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
 939                                 return 0;
 940                         }
 941                 return -EINVAL;
 942         }
 943
 944         case VIDIOC_G_CTRL:
 945                 return msp_get_ctrl(client, arg);
 946
 947         case VIDIOC_S_CTRL:
 948                 return msp_set_ctrl(client, arg);
 949
 950         case VIDIOC_LOG_STATUS:
 951         {
 952                 const char *p;
 953
 954                 if (state->opmode == OPMODE_AUTOSELECT)
 955                         msp_detect_stereo(client);
 956                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 957                                 client->name, state->rev1, state->rev2);
 958                 v4l_info(client, "Audio:    volume %d%s\n",
 959                                 state->volume, state->muted ? " (muted)" : "");
 960                 if (state->has_sound_processing) {
 961                         v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
 962                                         state->balance, state->bass, state->treble,
 963                                         state->loudness ? "on" : "off");
 964                 }
 965                 switch (state->mode) {
 966                 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
 967                 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
 968                 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
 969                 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
 970                 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
 971                 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
 972                 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
 973                 case MSP_MODE_BTSC: p = "BTSC"; break;
 974                 case MSP_MODE_EXTERN: p = "External input"; break;
 975                 default: p = "unknown"; break;
 976                 }
 977                 if (state->opmode == OPMODE_MANUAL) {
 978                         v4l_info(client, "Mode:     %s (%s%s)\n", p,
 979                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 980                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 981                 } else {
 982                         v4l_info(client, "Mode:     %s\n", p);
 983                         v4l_info(client, "Standard: %s (%s%s)\n",
 984                                 msp_standard_std_name(state->std),
 985                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
 986                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
 987                 }
 988                 v4l_info(client, "ACB:      0x%04x\n", state->acb);
 989                 break;
 990         }
 991
 992         default:
 993                 /* unknown */
 994                 return -EINVAL;
 995         }
 996         return 0;
 997 }
 998
 999 static int msp_suspend(struct device * dev, pm_message_t state)
1000 {
1001         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1002
1003         v4l_dbg(1, msp_debug, client, "suspend\n");
1004         msp_reset(client);
1005         return 0;
1006 }
1007
1008 static int msp_resume(struct device * dev)
1009 {
1010         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1011
1012         v4l_dbg(1, msp_debug, client, "resume\n");
1013         msp_wake_thread(client);
1014         return 0;
1015 }
1016
1017 /* ----------------------------------------------------------------------- */
1018
1019 static struct i2c_driver i2c_driver;
1020
1021 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
1022 {
1023         struct i2c_client *client;
1024         struct msp_state *state;
1025         int (*thread_func)(void *data) = NULL;
1026         int msp_hard;
1027         int msp_family;
1028         int msp_revision;
1029         int msp_product, msp_prod_hi, msp_prod_lo;
1030         int msp_rom;
1031
1032         client = kmalloc(sizeof(*client), GFP_KERNEL);
1033         if (client == NULL)
1034                 return -ENOMEM;
1035         memset(client, 0, sizeof(*client));
1036         client->addr = address;
1037         client->adapter = adapter;
1038         client->driver = &i2c_driver;
1039         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
1040
1041         if (msp_reset(client) == -1) {
1042                 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
1043                 kfree(client);
1044                 return -1;
1045         }
1046
1047         state = kmalloc(sizeof(*state), GFP_KERNEL);
1048         if (state == NULL) {
1049                 kfree(client);
1050                 return -ENOMEM;
1051         }
1052         i2c_set_clientdata(client, state);
1053
1054         memset(state, 0, sizeof(*state));
1055         state->v4l2_std = V4L2_STD_NTSC;
1056         state->audmode = V4L2_TUNER_MODE_LANG1;
1057         state->volume = 58880;  /* 0db gain */
1058         state->balance = 32768; /* 0db gain */
1059         state->bass = 32768;
1060         state->treble = 32768;
1061         state->loudness = 0;
1062         state->input = -1;
1063         state->muted = 0;
1064         state->i2s_mode = 0;
1065         init_waitqueue_head(&state->wq);
1066
1067         state->rev1 = msp_read_dsp(client, 0x1e);
1068         if (state->rev1 != -1)
1069                 state->rev2 = msp_read_dsp(client, 0x1f);
1070         v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
1071         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
1072                 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
1073                 kfree(state);
1074                 kfree(client);
1075                 return -1;
1076         }
1077
1078         msp_set_audio(client);
1079
1080         msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
1081         msp_product = (state->rev2 >> 8) & 0xff;
1082         msp_prod_hi = msp_product / 10;
1083         msp_prod_lo = msp_product % 10;
1084         msp_revision = (state->rev1 & 0x0f) + '@';
1085         msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
1086         msp_rom = state->rev2 & 0x1f;
1087         snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
1088                         msp_family, msp_product,
1089                         msp_revision, msp_hard, msp_rom);
1090
1091         /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
1092         state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
1093         /* Has radio support: was added with revision G */
1094         state->has_radio = msp_revision >= 'G';
1095         /* Has headphones output: not for stripped down products */
1096         state->has_headphones = msp_prod_lo < 5;
1097         /* Has scart4 input: not in pre D revisions, not in stripped D revs */
1098         state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
1099         /* Has scart2 and scart3 inputs and scart2 output: not in stripped
1100            down products of the '3' family */
1101         state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
1102         /* Has scart2 a volume control? Not in pre-D revisions. */
1103         state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
1104         /* Has a configurable i2s out? */
1105         state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
1106         /* Has subwoofer output: not in pre-D revs and not in stripped down products */
1107         state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
1108         /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
1109            stripped down products */
1110         state->has_sound_processing = msp_prod_lo < 7;
1111         /* Has Virtual Dolby Surround: only in msp34x1 */
1112         state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
1113         /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
1114         state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
1115
1116         state->opmode = opmode;
1117         if (state->opmode == OPMODE_AUTO) {
1118                 /* MSP revision G and up have both autodetect and autoselect */
1119                 if (msp_revision >= 'G')
1120                         state->opmode = OPMODE_AUTOSELECT;
1121                 /* MSP revision D and up have autodetect */
1122                 else if (msp_revision >= 'D')
1123                         state->opmode = OPMODE_AUTODETECT;
1124                 else
1125                         state->opmode = OPMODE_MANUAL;
1126         }
1127
1128         /* hello world :-) */
1129         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1130         v4l_info(client, "%s ", client->name);
1131         if (state->has_nicam && state->has_radio)
1132                 printk("supports nicam and radio, ");
1133         else if (state->has_nicam)
1134                 printk("supports nicam, ");
1135         else if (state->has_radio)
1136                 printk("supports radio, ");
1137         printk("mode is ");
1138
1139         /* version-specific initialization */
1140         switch (state->opmode) {
1141         case OPMODE_MANUAL:
1142                 printk("manual");
1143                 thread_func = msp3400c_thread;
1144                 break;
1145         case OPMODE_AUTODETECT:
1146                 printk("autodetect");
1147                 thread_func = msp3410d_thread;
1148                 break;
1149         case OPMODE_AUTOSELECT:
1150                 printk("autodetect and autoselect");
1151                 thread_func = msp34xxg_thread;
1152                 break;
1153         }
1154         printk("\n");
1155
1156         /* startup control thread if needed */
1157         if (thread_func) {
1158                 state->kthread = kthread_run(thread_func, client, "msp34xx");
1159
1160                 if (state->kthread == NULL)
1161                         v4l_warn(client, "kernel_thread() failed\n");
1162                 msp_wake_thread(client);
1163         }
1164
1165         /* done */
1166         i2c_attach_client(client);
1167
1168         return 0;
1169 }
1170
1171 static int msp_probe(struct i2c_adapter *adapter)
1172 {
1173         if (adapter->class & I2C_CLASS_TV_ANALOG)
1174                 return i2c_probe(adapter, &addr_data, msp_attach);
1175         return 0;
1176 }
1177
1178 static int msp_detach(struct i2c_client *client)
1179 {
1180         struct msp_state *state = i2c_get_clientdata(client);
1181         int err;
1182
1183         /* shutdown control thread */
1184         if (state->kthread) {
1185                 state->restart = 1;
1186                 kthread_stop(state->kthread);
1187         }
1188         msp_reset(client);
1189
1190         err = i2c_detach_client(client);
1191         if (err) {
1192                 return err;
1193         }
1194
1195         kfree(state);
1196         kfree(client);
1197         return 0;
1198 }
1199
1200 /* ----------------------------------------------------------------------- */
1201
1202 /* i2c implementation */
1203 static struct i2c_driver i2c_driver = {
1204         .id             = I2C_DRIVERID_MSP3400,
1205         .attach_adapter = msp_probe,
1206         .detach_client  = msp_detach,
1207         .command        = msp_command,
1208         .driver = {
1209                 .name    = "msp3400",
1210                 .suspend = msp_suspend,
1211                 .resume  = msp_resume,
1212         },
1213 };
1214
1215 static int __init msp3400_init_module(void)
1216 {
1217         return i2c_add_driver(&i2c_driver);
1218 }
1219
1220 static void __exit msp3400_cleanup_module(void)
1221 {
1222         i2c_del_driver(&i2c_driver);
1223 }
1224
1225 module_init(msp3400_init_module);
1226 module_exit(msp3400_cleanup_module);
1227
1228 /*
1229  * Overrides for Emacs so that we follow Linus's tabbing style.
1230  * ---------------------------------------------------------------------------
1231  * Local variables:
1232  * c-basic-offset: 8
1233  * End:
1234  */