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/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;
 415         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
 416                 mode |= VIDEO_SOUND_LANG1;
 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 void msp_any_detect_stereo(struct i2c_client *client)
 434 {
 435         struct msp_state *state  = i2c_get_clientdata(client);
 436
 437         switch (state->opmode) {
 438         case OPMODE_MANUAL:
 439         case OPMODE_AUTODETECT:
 440                 autodetect_stereo(client);
 441                 break;
 442         case OPMODE_AUTOSELECT:
 443                 msp34xxg_detect_stereo(client);
 444                 break;
 445         }
 446 }
 447
 448 static struct v4l2_queryctrl msp_qctrl_std[] = {
 449         {
 450                 .id            = V4L2_CID_AUDIO_VOLUME,
 451                 .name          = "Volume",
 452                 .minimum       = 0,
 453                 .maximum       = 65535,
 454                 .step          = 65535/100,
 455                 .default_value = 58880,
 456                 .flags         = 0,
 457                 .type          = V4L2_CTRL_TYPE_INTEGER,
 458         },{
 459                 .id            = V4L2_CID_AUDIO_MUTE,
 460                 .name          = "Mute",
 461                 .minimum       = 0,
 462                 .maximum       = 1,
 463                 .step          = 1,
 464                 .default_value = 1,
 465                 .flags         = 0,
 466                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 467         },
 468 };
 469
 470 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
 471         {
 472                 .id            = V4L2_CID_AUDIO_BALANCE,
 473                 .name          = "Balance",
 474                 .minimum       = 0,
 475                 .maximum       = 65535,
 476                 .step          = 65535/100,
 477                 .default_value = 32768,
 478                 .flags         = 0,
 479                 .type          = V4L2_CTRL_TYPE_INTEGER,
 480         },{
 481                 .id            = V4L2_CID_AUDIO_BASS,
 482                 .name          = "Bass",
 483                 .minimum       = 0,
 484                 .maximum       = 65535,
 485                 .step          = 65535/100,
 486                 .default_value = 32768,
 487                 .type          = V4L2_CTRL_TYPE_INTEGER,
 488         },{
 489                 .id            = V4L2_CID_AUDIO_TREBLE,
 490                 .name          = "Treble",
 491                 .minimum       = 0,
 492                 .maximum       = 65535,
 493                 .step          = 65535/100,
 494                 .default_value = 32768,
 495                 .type          = V4L2_CTRL_TYPE_INTEGER,
 496         },{
 497                 .id            = V4L2_CID_AUDIO_LOUDNESS,
 498                 .name          = "Loudness",
 499                 .minimum       = 0,
 500                 .maximum       = 1,
 501                 .step          = 1,
 502                 .default_value = 1,
 503                 .flags         = 0,
 504                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 505         },
 506 };
 507
 508
 509 static void msp_any_set_audmode(struct i2c_client *client, int audmode)
 510 {
 511         struct msp_state *state = i2c_get_clientdata(client);
 512
 513         switch (state->opmode) {
 514         case OPMODE_MANUAL:
 515         case OPMODE_AUTODETECT:
 516                 state->watch_stereo = 0;
 517                 msp3400c_setstereo(client, audmode);
 518                 break;
 519         case OPMODE_AUTOSELECT:
 520                 msp34xxg_set_audmode(client, audmode);
 521                 break;
 522         }
 523 }
 524
 525 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 526 {
 527         struct msp_state *state = i2c_get_clientdata(client);
 528
 529         switch (ctrl->id) {
 530         case V4L2_CID_AUDIO_VOLUME:
 531                 ctrl->value = state->volume;
 532                 break;
 533
 534         case V4L2_CID_AUDIO_MUTE:
 535                 ctrl->value = state->muted;
 536                 break;
 537
 538         case V4L2_CID_AUDIO_BALANCE:
 539                 if (!state->has_sound_processing)
 540                         return -EINVAL;
 541                 ctrl->value = state->balance;
 542                 break;
 543
 544         case V4L2_CID_AUDIO_BASS:
 545                 if (!state->has_sound_processing)
 546                         return -EINVAL;
 547                 ctrl->value = state->bass;
 548                 break;
 549
 550         case V4L2_CID_AUDIO_TREBLE:
 551                 if (!state->has_sound_processing)
 552                         return -EINVAL;
 553                 ctrl->value = state->treble;
 554                 break;
 555
 556         case V4L2_CID_AUDIO_LOUDNESS:
 557                 if (!state->has_sound_processing)
 558                         return -EINVAL;
 559                 ctrl->value = state->loudness;
 560                 break;
 561
 562         default:
 563                 return -EINVAL;
 564         }
 565         return 0;
 566 }
 567
 568 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
 569 {
 570         struct msp_state *state = i2c_get_clientdata(client);
 571
 572         switch (ctrl->id) {
 573         case V4L2_CID_AUDIO_VOLUME:
 574                 state->volume = ctrl->value;
 575                 if (state->volume == 0)
 576                         state->balance = 32768;
 577                 break;
 578
 579         case V4L2_CID_AUDIO_MUTE:
 580                 if (ctrl->value < 0 || ctrl->value >= 2)
 581                         return -ERANGE;
 582                 state->muted = ctrl->value;
 583                 break;
 584
 585         case V4L2_CID_AUDIO_BASS:
 586                 if (!state->has_sound_processing)
 587                         return -EINVAL;
 588                 state->bass = ctrl->value;
 589                 break;
 590
 591         case V4L2_CID_AUDIO_TREBLE:
 592                 if (!state->has_sound_processing)
 593                         return -EINVAL;
 594                 state->treble = ctrl->value;
 595                 break;
 596
 597         case V4L2_CID_AUDIO_LOUDNESS:
 598                 if (!state->has_sound_processing)
 599                         return -EINVAL;
 600                 state->loudness = ctrl->value;
 601                 break;
 602
 603         case V4L2_CID_AUDIO_BALANCE:
 604                 if (!state->has_sound_processing)
 605                         return -EINVAL;
 606                 state->balance = ctrl->value;
 607                 break;
 608
 609         default:
 610                 return -EINVAL;
 611         }
 612         msp_set_audio(client);
 613         return 0;
 614 }
 615
 616 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
 617 {
 618         struct msp_state *state = i2c_get_clientdata(client);
 619         u16 *sarg = arg;
 620         int scart = 0;
 621
 622         if (msp_debug >= 2)
 623                 v4l_i2c_print_ioctl(client, cmd);
 624
 625         switch (cmd) {
 626         case AUDC_SET_INPUT:
 627                 if (*sarg == state->input)
 628                         break;
 629                 state->input = *sarg;
 630                 switch (*sarg) {
 631                 case AUDIO_RADIO:
 632                         /* Hauppauge uses IN2 for the radio */
 633                         state->mode = MSP_MODE_FM_RADIO;
 634                         scart       = SCART_IN2;
 635                         break;
 636                 case AUDIO_EXTERN_1:
 637                         /* IN1 is often used for external input ... */
 638                         state->mode = MSP_MODE_EXTERN;
 639                         scart       = SCART_IN1;
 640                         break;
 641                 case AUDIO_EXTERN_2:
 642                         /* ... sometimes it is IN2 through ;) */
 643                         state->mode = MSP_MODE_EXTERN;
 644                         scart       = SCART_IN2;
 645                         break;
 646                 case AUDIO_TUNER:
 647                         state->mode = -1;
 648                         break;
 649                 default:
 650                         if (*sarg & AUDIO_MUTE)
 651                                 msp_set_scart(client, SCART_MUTE, 0);
 652                         break;
 653                 }
 654                 if (scart) {
 655                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 656                         msp_set_scart(client, scart, 0);
 657                         msp_write_dsp(client, 0x000d, 0x1900);
 658                         if (state->opmode != OPMODE_AUTOSELECT)
 659                                 msp3400c_setstereo(client, state->audmode);
 660                 }
 661                 msp_wake_thread(client);
 662                 break;
 663
 664         case AUDC_SET_RADIO:
 665                 if (state->radio)
 666                         return 0;
 667                 state->radio = 1;
 668                 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
 669                 state->watch_stereo = 0;
 670                 switch (state->opmode) {
 671                 case OPMODE_MANUAL:
 672                         /* set msp3400 to FM radio mode */
 673                         msp3400c_setmode(client, MSP_MODE_FM_RADIO);
 674                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),
 675                                             MSP_CARRIER(10.7));
 676                         msp_set_audio(client);
 677                         break;
 678                 case OPMODE_AUTODETECT:
 679                 case OPMODE_AUTOSELECT:
 680                         /* the thread will do for us */
 681                         msp_wake_thread(client);
 682                         break;
 683                 }
 684                 break;
 685
 686         /* --- v4l ioctls --- */
 687         /* take care: bttv does userspace copying, we'll get a
 688            kernel pointer here... */
 689         case VIDIOCGAUDIO:
 690         {
 691                 struct video_audio *va = arg;
 692
 693                 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
 694                 if (state->has_sound_processing)
 695                         va->flags |= VIDEO_AUDIO_BALANCE |
 696                                 VIDEO_AUDIO_BASS |
 697                                 VIDEO_AUDIO_TREBLE;
 698                 if (state->muted)
 699                         va->flags |= VIDEO_AUDIO_MUTE;
 700                 va->volume = state->volume;
 701                 va->balance = state->volume ? state->balance : 32768;
 702                 va->bass = state->bass;
 703                 va->treble = state->treble;
 704
 705                 if (state->radio)
 706                         break;
 707                 if (state->opmode == OPMODE_AUTOSELECT)
 708                         msp_any_detect_stereo(client);
 709                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
 710                 break;
 711         }
 712
 713         case VIDIOCSAUDIO:
 714         {
 715                 struct video_audio *va = arg;
 716
 717                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
 718                 state->volume = va->volume;
 719                 state->balance = va->balance;
 720                 state->bass = va->bass;
 721                 state->treble = va->treble;
 722                 msp_set_audio(client);
 723
 724                 if (va->mode != 0 && state->radio == 0)
 725                         msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
 726                 break;
 727         }
 728
 729         case VIDIOCSCHAN:
 730         {
 731                 struct video_channel *vc = arg;
 732                 int update = 0;
 733                 v4l2_std_id std;
 734
 735                 if (state->radio)
 736                         update = 1;
 737                 state->radio = 0;
 738                 if (vc->norm == VIDEO_MODE_PAL)
 739                         std = V4L2_STD_PAL;
 740                 else if (vc->norm == VIDEO_MODE_SECAM)
 741                         std = V4L2_STD_SECAM;
 742                 else
 743                         std = V4L2_STD_NTSC;
 744                 if (std != state->v4l2_std) {
 745                         state->v4l2_std = std;
 746                         update = 1;
 747                 }
 748                 if (update)
 749                         msp_wake_thread(client);
 750                 break;
 751         }
 752
 753         case VIDIOCSFREQ:
 754         case VIDIOC_S_FREQUENCY:
 755         {
 756                 /* new channel -- kick audio carrier scan */
 757                 msp_wake_thread(client);
 758                 break;
 759         }
 760
 761         /* msp34xx specific */
 762         case MSP_SET_MATRIX:
 763         {
 764                 struct msp_matrix *mspm = arg;
 765
 766                 msp_set_scart(client, mspm->input, mspm->output);
 767                 break;
 768         }
 769
 770         /* --- v4l2 ioctls --- */
 771         case VIDIOC_S_STD:
 772         {
 773                 v4l2_std_id *id = arg;
 774                 int update = state->radio || state->v4l2_std != *id;
 775
 776                 state->v4l2_std = *id;
 777                 state->radio = 0;
 778                 if (update)
 779                         msp_wake_thread(client);
 780                 return 0;
 781         }
 782
 783         case VIDIOC_ENUMINPUT:
 784         {
 785                 struct v4l2_input *i = arg;
 786
 787                 if (i->index != 0)
 788                         return -EINVAL;
 789
 790                 i->type = V4L2_INPUT_TYPE_TUNER;
 791                 switch (i->index) {
 792                 case AUDIO_RADIO:
 793                         strcpy(i->name, "Radio");
 794                         break;
 795                 case AUDIO_EXTERN_1:
 796                         strcpy(i->name, "Extern 1");
 797                         break;
 798                 case AUDIO_EXTERN_2:
 799                         strcpy(i->name, "Extern 2");
 800                         break;
 801                 case AUDIO_TUNER:
 802                         strcpy(i->name, "Television");
 803                         break;
 804                 default:
 805                         return -EINVAL;
 806                 }
 807                 return 0;
 808         }
 809
 810         case VIDIOC_G_AUDIO:
 811         {
 812                 struct v4l2_audio *a = arg;
 813
 814                 memset(a, 0, sizeof(*a));
 815
 816                 switch (a->index) {
 817                 case AUDIO_RADIO:
 818                         strcpy(a->name, "Radio");
 819                         break;
 820                 case AUDIO_EXTERN_1:
 821                         strcpy(a->name, "Extern 1");
 822                         break;
 823                 case AUDIO_EXTERN_2:
 824                         strcpy(a->name, "Extern 2");
 825                         break;
 826                 case AUDIO_TUNER:
 827                         strcpy(a->name, "Television");
 828                         break;
 829                 default:
 830                         return -EINVAL;
 831                 }
 832
 833                 a->capability = V4L2_AUDCAP_STEREO;
 834                 a->mode = 0;  /* TODO: add support for AVL */
 835                 break;
 836         }
 837
 838         case VIDIOC_S_AUDIO:
 839         {
 840                 struct v4l2_audio *sarg = arg;
 841
 842                 switch (sarg->index) {
 843                 case AUDIO_RADIO:
 844                         /* Hauppauge uses IN2 for the radio */
 845                         state->mode = MSP_MODE_FM_RADIO;
 846                         scart       = SCART_IN2;
 847                         break;
 848                 case AUDIO_EXTERN_1:
 849                         /* IN1 is often used for external input ... */
 850                         state->mode = MSP_MODE_EXTERN;
 851                         scart       = SCART_IN1;
 852                         break;
 853                 case AUDIO_EXTERN_2:
 854                         /* ... sometimes it is IN2 through ;) */
 855                         state->mode = MSP_MODE_EXTERN;
 856                         scart       = SCART_IN2;
 857                         break;
 858                 case AUDIO_TUNER:
 859                         state->mode = -1;
 860                         break;
 861                 }
 862                 if (scart) {
 863                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
 864                         msp_set_scart(client, scart, 0);
 865                         msp_write_dsp(client, 0x000d, 0x1900);
 866                 }
 867                 msp_any_set_audmode(client, state->audmode);
 868                 msp_wake_thread(client);
 869                 break;
 870         }
 871
 872         case VIDIOC_G_TUNER:
 873         {
 874                 struct v4l2_tuner *vt = arg;
 875
 876                 if (state->radio)
 877                         break;
 878                 if (state->opmode == OPMODE_AUTOSELECT)
 879                         msp_any_detect_stereo(client);
 880                 vt->audmode    = state->audmode;
 881                 vt->rxsubchans = state->rxsubchans;
 882                 vt->capability = V4L2_TUNER_CAP_STEREO |
 883                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
 884                 break;
 885         }
 886
 887         case VIDIOC_S_TUNER:
 888         {
 889                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
 890
 891                 if (state->radio)  /* TODO: add mono/stereo support for radio */
 892                         break;
 893                 /* only set audmode */
 894                 msp_any_set_audmode(client, vt->audmode);
 895                 break;
 896         }
 897
 898         case VIDIOC_G_AUDOUT:
 899         {
 900                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 901                 int idx = a->index;
 902
 903                 memset(a, 0, sizeof(*a));
 904
 905                 switch (idx) {
 906                 case 0:
 907                         strcpy(a->name, "Scart1 Out");
 908                         break;
 909                 case 1:
 910                         strcpy(a->name, "Scart2 Out");
 911                         break;
 912                 case 2:
 913                         strcpy(a->name, "I2S Out");
 914                         break;
 915                 default:
 916                         return -EINVAL;
 917                 }
 918                 break;
 919         }
 920
 921         case VIDIOC_S_AUDOUT:
 922         {
 923                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
 924
 925                 if (a->index < 0 || a->index > 2)
 926                         return -EINVAL;
 927
 928                 v4l_dbg(1, msp_debug, client, "Setting audio out on msp34xx to input %i\n", a->index);
 929                 msp_set_scart(client, state->in_scart, a->index + 1);
 930
 931                 break;
 932         }
 933
 934         case VIDIOC_INT_I2S_CLOCK_FREQ:
 935         {
 936                 u32 *a = (u32 *)arg;
 937
 938                 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
 939
 940                 switch (*a) {
 941                         case 1024000:
 942                                 state->i2s_mode = 0;
 943                                 break;
 944                         case 2048000:
 945                                 state->i2s_mode = 1;
 946                                 break;
 947                         default:
 948                                 return -EINVAL;
 949                 }
 950                 break;
 951         }
 952
 953         case VIDIOC_QUERYCTRL:
 954         {
 955                 struct v4l2_queryctrl *qc = arg;
 956                 int i;
 957
 958                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
 959                         if (qc->id && qc->id == msp_qctrl_std[i].id) {
 960                                 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
 961                                 return 0;
 962                         }
 963                 if (!state->has_sound_processing)
 964                         return -EINVAL;
 965                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
 966                         if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
 967                                 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
 968                                 return 0;
 969                         }
 970                 return -EINVAL;
 971         }
 972
 973         case VIDIOC_G_CTRL:
 974                 return msp_get_ctrl(client, arg);
 975
 976         case VIDIOC_S_CTRL:
 977                 return msp_set_ctrl(client, arg);
 978
 979         case VIDIOC_LOG_STATUS:
 980         {
 981                 const char *p;
 982
 983                 if (state->opmode == OPMODE_AUTOSELECT)
 984                         msp_any_detect_stereo(client);
 985                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
 986                                 client->name, state->rev1, state->rev2);
 987                 v4l_info(client, "Audio:    volume %d%s\n",
 988                                 state->volume, state->muted ? " (muted)" : "");
 989                 if (state->has_sound_processing) {
 990                         v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
 991                                         state->balance, state->bass, state->treble,
 992                                         state->loudness ? "on" : "off");
 993                 }
 994                 switch (state->mode) {
 995                 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
 996                 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
 997                 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
 998                 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
 999                 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
1000                 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
1001                 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
1002                 case MSP_MODE_BTSC: p = "BTSC"; break;
1003                 case MSP_MODE_EXTERN: p = "External input"; break;
1004                 default: p = "unknown"; break;
1005                 }
1006                 if (state->opmode == OPMODE_MANUAL) {
1007                         v4l_info(client, "Mode:     %s (%s%s)\n", p,
1008                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
1009                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
1010                 } else {
1011                         v4l_info(client, "Mode:     %s\n", p);
1012                         v4l_info(client, "Standard: %s (%s%s)\n",
1013                                 msp_standard_std_name(state->std),
1014                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
1015                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
1016                 }
1017                 v4l_info(client, "ACB:      0x%04x\n", state->acb);
1018                 break;
1019         }
1020
1021         default:
1022                 /* unknown */
1023                 return -EINVAL;
1024         }
1025         return 0;
1026 }
1027
1028 static int msp_suspend(struct device * dev, pm_message_t state)
1029 {
1030         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1031
1032         v4l_dbg(1, msp_debug, client, "suspend\n");
1033         msp_reset(client);
1034         return 0;
1035 }
1036
1037 static int msp_resume(struct device * dev)
1038 {
1039         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1040
1041         v4l_dbg(1, msp_debug, client, "resume\n");
1042         msp_wake_thread(client);
1043         return 0;
1044 }
1045
1046 /* ----------------------------------------------------------------------- */
1047
1048 static struct i2c_driver i2c_driver;
1049
1050 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
1051 {
1052         struct i2c_client *client;
1053         struct msp_state *state;
1054         int (*thread_func)(void *data) = NULL;
1055         int msp_hard;
1056         int msp_family;
1057         int msp_revision;
1058         int msp_product, msp_prod_hi, msp_prod_lo;
1059         int msp_rom;
1060
1061         client = kmalloc(sizeof(*client), GFP_KERNEL);
1062         if (client == NULL)
1063                 return -ENOMEM;
1064         memset(client, 0, sizeof(*client));
1065         client->addr = address;
1066         client->adapter = adapter;
1067         client->driver = &i2c_driver;
1068         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
1069
1070         if (msp_reset(client) == -1) {
1071                 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
1072                 kfree(client);
1073                 return -1;
1074         }
1075
1076         state = kmalloc(sizeof(*state), GFP_KERNEL);
1077         if (state == NULL) {
1078                 kfree(client);
1079                 return -ENOMEM;
1080         }
1081         i2c_set_clientdata(client, state);
1082
1083         memset(state, 0, sizeof(*state));
1084         state->v4l2_std = V4L2_STD_NTSC;
1085         state->audmode = V4L2_TUNER_MODE_STEREO;
1086         state->volume = 58880;  /* 0db gain */
1087         state->balance = 32768; /* 0db gain */
1088         state->bass = 32768;
1089         state->treble = 32768;
1090         state->loudness = 0;
1091         state->input = -1;
1092         state->muted = 0;
1093         state->i2s_mode = 0;
1094         init_waitqueue_head(&state->wq);
1095
1096         state->rev1 = msp_read_dsp(client, 0x1e);
1097         if (state->rev1 != -1)
1098                 state->rev2 = msp_read_dsp(client, 0x1f);
1099         v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
1100         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
1101                 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
1102                 kfree(state);
1103                 kfree(client);
1104                 return -1;
1105         }
1106
1107         msp_set_audio(client);
1108
1109         msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
1110         msp_product = (state->rev2 >> 8) & 0xff;
1111         msp_prod_hi = msp_product / 10;
1112         msp_prod_lo = msp_product % 10;
1113         msp_revision = (state->rev1 & 0x0f) + '@';
1114         msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
1115         msp_rom = state->rev2 & 0x1f;
1116         snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
1117                         msp_family, msp_product,
1118                         msp_revision, msp_hard, msp_rom);
1119
1120         /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
1121         state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
1122         /* Has radio support: was added with revision G */
1123         state->has_radio = msp_revision >= 'G';
1124         /* Has headphones output: not for stripped down products */
1125         state->has_headphones = msp_prod_lo < 5;
1126         /* Has scart4 input: not in pre D revisions, not in stripped D revs */
1127         state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
1128         /* Has scart2 and scart3 inputs and scart2 output: not in stripped
1129            down products of the '3' family */
1130         state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
1131         /* Has scart2 a volume control? Not in pre-D revisions. */
1132         state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
1133         /* Has a configurable i2s out? */
1134         state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
1135         /* Has subwoofer output: not in pre-D revs and not in stripped down products */
1136         state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
1137         /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
1138            stripped down products */
1139         state->has_sound_processing = msp_prod_lo < 7;
1140         /* Has Virtual Dolby Surround: only in msp34x1 */
1141         state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
1142         /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
1143         state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
1144
1145         state->opmode = opmode;
1146         if (state->opmode == OPMODE_AUTO) {
1147                 /* MSP revision G and up have both autodetect and autoselect */
1148                 if (msp_revision >= 'G')
1149                         state->opmode = OPMODE_AUTOSELECT;
1150                 /* MSP revision D and up have autodetect */
1151                 else if (msp_revision >= 'D')
1152                         state->opmode = OPMODE_AUTODETECT;
1153                 else
1154                         state->opmode = OPMODE_MANUAL;
1155         }
1156
1157         /* hello world :-) */
1158         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1159         v4l_info(client, "%s ", client->name);
1160         if (state->has_nicam && state->has_radio)
1161                 printk("supports nicam and radio, ");
1162         else if (state->has_nicam)
1163                 printk("supports nicam, ");
1164         else if (state->has_radio)
1165                 printk("supports radio, ");
1166         printk("mode is ");
1167
1168         /* version-specific initialization */
1169         switch (state->opmode) {
1170         case OPMODE_MANUAL:
1171                 printk("manual");
1172                 thread_func = msp3400c_thread;
1173                 break;
1174         case OPMODE_AUTODETECT:
1175                 printk("autodetect");
1176                 thread_func = msp3410d_thread;
1177                 break;
1178         case OPMODE_AUTOSELECT:
1179                 printk("autodetect and autoselect");
1180                 thread_func = msp34xxg_thread;
1181                 break;
1182         }
1183         printk("\n");
1184
1185         /* startup control thread if needed */
1186         if (thread_func) {
1187                 state->kthread = kthread_run(thread_func, client, "msp34xx");
1188
1189                 if (state->kthread == NULL)
1190                         v4l_warn(client, "kernel_thread() failed\n");
1191                 msp_wake_thread(client);
1192         }
1193
1194         /* done */
1195         i2c_attach_client(client);
1196
1197         return 0;
1198 }
1199
1200 static int msp_probe(struct i2c_adapter *adapter)
1201 {
1202         if (adapter->class & I2C_CLASS_TV_ANALOG)
1203                 return i2c_probe(adapter, &addr_data, msp_attach);
1204         return 0;
1205 }
1206
1207 static int msp_detach(struct i2c_client *client)
1208 {
1209         struct msp_state *state = i2c_get_clientdata(client);
1210         int err;
1211
1212         /* shutdown control thread */
1213         if (state->kthread) {
1214                 state->restart = 1;
1215                 kthread_stop(state->kthread);
1216         }
1217         msp_reset(client);
1218
1219         err = i2c_detach_client(client);
1220         if (err) {
1221                 return err;
1222         }
1223
1224         kfree(state);
1225         kfree(client);
1226         return 0;
1227 }
1228
1229 /* ----------------------------------------------------------------------- */
1230
1231 /* i2c implementation */
1232 static struct i2c_driver i2c_driver = {
1233         .id             = I2C_DRIVERID_MSP3400,
1234         .attach_adapter = msp_probe,
1235         .detach_client  = msp_detach,
1236         .command        = msp_command,
1237         .driver = {
1238                 .name    = "msp3400",
1239                 .suspend = msp_suspend,
1240                 .resume  = msp_resume,
1241         },
1242 };
1243
1244 static int __init msp3400_init_module(void)
1245 {
1246         return i2c_add_driver(&i2c_driver);
1247 }
1248
1249 static void __exit msp3400_cleanup_module(void)
1250 {
1251         i2c_del_driver(&i2c_driver);
1252 }
1253
1254 module_init(msp3400_init_module);
1255 module_exit(msp3400_cleanup_module);
1256
1257 /*
1258  * Overrides for Emacs so that we follow Linus's tabbing style.
1259  * ---------------------------------------------------------------------------
1260  * Local variables:
1261  * c-basic-offset: 8
1262  * End:
1263  */