sound/pci/oxygen/oxygen.c

   1 /*
   2  * C-Media CMI8788 driver for C-Media's reference design and similar models
   3  *
   4  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   5  *
   6  *
   7  *  This driver is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License, version 2.
   9  *
  10  *  This driver is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this driver; if not, write to the Free Software
  17  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18  */
  19
  20 /*
  21  * CMI8788:
  22  *
  23  * SPI 0 -> 1st AK4396 (front)
  24  * SPI 1 -> 2nd AK4396 (surround)
  25  * SPI 2 -> 3rd AK4396 (center/LFE)
  26  * SPI 3 -> WM8785
  27  * SPI 4 -> 4th AK4396 (back)
  28  *
  29  * GPIO 0 -> DFS0 of AK5385
  30  * GPIO 1 -> DFS1 of AK5385
  31  * GPIO 8 -> enable headphone amplifier on HT-Omega models
  32  *
  33  * CM9780:
  34  *
  35  * GPO 0 -> route line-in (0) or AC97 output (1) to ADC input
  36  */
  37
  38 #include <linux/delay.h>
  39 #include <linux/mutex.h>
  40 #include <linux/pci.h>
  41 #include <sound/ac97_codec.h>
  42 #include <sound/control.h>
  43 #include <sound/core.h>
  44 #include <sound/initval.h>
  45 #include <sound/pcm.h>
  46 #include <sound/pcm_params.h>
  47 #include <sound/tlv.h>
  48 #include "oxygen.h"
  49 #include "ak4396.h"
  50 #include "wm8785.h"
  51
  52 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  53 MODULE_DESCRIPTION("C-Media CMI8788 driver");
  54 MODULE_LICENSE("GPL v2");
  55 MODULE_SUPPORTED_DEVICE("{{C-Media,CMI8788}}");
  56
  57 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  58 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  59 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  60
  61 module_param_array(index, int, NULL, 0444);
  62 MODULE_PARM_DESC(index, "card index");
  63 module_param_array(id, charp, NULL, 0444);
  64 MODULE_PARM_DESC(id, "ID string");
  65 module_param_array(enable, bool, NULL, 0444);
  66 MODULE_PARM_DESC(enable, "enable card");
  67
  68 enum {
  69         MODEL_CMEDIA_REF,       /* C-Media's reference design */
  70         MODEL_MERIDIAN,         /* AuzenTech X-Meridian */
  71         MODEL_CLARO,            /* HT-Omega Claro */
  72         MODEL_CLARO_HALO,       /* HT-Omega Claro halo */
  73 };
  74
  75 static DEFINE_PCI_DEVICE_TABLE(oxygen_ids) = {
  76         { OXYGEN_PCI_SUBID(0x10b0, 0x0216), .driver_data = MODEL_CMEDIA_REF },
  77         { OXYGEN_PCI_SUBID(0x10b0, 0x0218), .driver_data = MODEL_CMEDIA_REF },
  78         { OXYGEN_PCI_SUBID(0x10b0, 0x0219), .driver_data = MODEL_CMEDIA_REF },
  79         { OXYGEN_PCI_SUBID(0x13f6, 0x0001), .driver_data = MODEL_CMEDIA_REF },
  80         { OXYGEN_PCI_SUBID(0x13f6, 0x0010), .driver_data = MODEL_CMEDIA_REF },
  81         { OXYGEN_PCI_SUBID(0x13f6, 0x8788), .driver_data = MODEL_CMEDIA_REF },
  82         { OXYGEN_PCI_SUBID(0x13f6, 0xffff), .driver_data = MODEL_CMEDIA_REF },
  83         { OXYGEN_PCI_SUBID(0x147a, 0xa017), .driver_data = MODEL_CMEDIA_REF },
  84         { OXYGEN_PCI_SUBID(0x1a58, 0x0910), .driver_data = MODEL_CMEDIA_REF },
  85         { OXYGEN_PCI_SUBID(0x415a, 0x5431), .driver_data = MODEL_MERIDIAN },
  86         { OXYGEN_PCI_SUBID(0x7284, 0x9761), .driver_data = MODEL_CLARO },
  87         { OXYGEN_PCI_SUBID(0x7284, 0x9781), .driver_data = MODEL_CLARO_HALO },
  88         { }
  89 };
  90 MODULE_DEVICE_TABLE(pci, oxygen_ids);
  91
  92
  93 #define GPIO_AK5385_DFS_MASK    0x0003
  94 #define GPIO_AK5385_DFS_NORMAL  0x0000
  95 #define GPIO_AK5385_DFS_DOUBLE  0x0001
  96 #define GPIO_AK5385_DFS_QUAD    0x0002
  97
  98 #define GPIO_CLARO_HP           0x0100
  99
 100 struct generic_data {
 101         u8 ak4396_regs[4][5];
 102         u16 wm8785_regs[3];
 103 };
 104
 105 static void ak4396_write(struct oxygen *chip, unsigned int codec,
 106                          u8 reg, u8 value)
 107 {
 108         /* maps ALSA channel pair number to SPI output */
 109         static const u8 codec_spi_map[4] = {
 110                 0, 1, 2, 4
 111         };
 112         struct generic_data *data = chip->model_data;
 113
 114         oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
 115                          OXYGEN_SPI_DATA_LENGTH_2 |
 116                          OXYGEN_SPI_CLOCK_160 |
 117                          (codec_spi_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
 118                          OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
 119                          AK4396_WRITE | (reg << 8) | value);
 120         data->ak4396_regs[codec][reg] = value;
 121 }
 122
 123 static void ak4396_write_cached(struct oxygen *chip, unsigned int codec,
 124                                 u8 reg, u8 value)
 125 {
 126         struct generic_data *data = chip->model_data;
 127
 128         if (value != data->ak4396_regs[codec][reg])
 129                 ak4396_write(chip, codec, reg, value);
 130 }
 131
 132 static void wm8785_write(struct oxygen *chip, u8 reg, unsigned int value)
 133 {
 134         struct generic_data *data = chip->model_data;
 135
 136         oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER |
 137                          OXYGEN_SPI_DATA_LENGTH_2 |
 138                          OXYGEN_SPI_CLOCK_160 |
 139                          (3 << OXYGEN_SPI_CODEC_SHIFT) |
 140                          OXYGEN_SPI_CEN_LATCH_CLOCK_LO,
 141                          (reg << 9) | value);
 142         if (reg < ARRAY_SIZE(data->wm8785_regs))
 143                 data->wm8785_regs[reg] = value;
 144 }
 145
 146 static void ak4396_registers_init(struct oxygen *chip)
 147 {
 148         struct generic_data *data = chip->model_data;
 149         unsigned int i;
 150
 151         for (i = 0; i < 4; ++i) {
 152                 ak4396_write(chip, i, AK4396_CONTROL_1,
 153                              AK4396_DIF_24_MSB | AK4396_RSTN);
 154                 ak4396_write(chip, i, AK4396_CONTROL_2,
 155                              data->ak4396_regs[0][AK4396_CONTROL_2]);
 156                 ak4396_write(chip, i, AK4396_CONTROL_3,
 157                              AK4396_PCM);
 158                 ak4396_write(chip, i, AK4396_LCH_ATT,
 159                              chip->dac_volume[i * 2]);
 160                 ak4396_write(chip, i, AK4396_RCH_ATT,
 161                              chip->dac_volume[i * 2 + 1]);
 162         }
 163 }
 164
 165 static void ak4396_init(struct oxygen *chip)
 166 {
 167         struct generic_data *data = chip->model_data;
 168
 169         data->ak4396_regs[0][AK4396_CONTROL_2] =
 170                 AK4396_SMUTE | AK4396_DEM_OFF | AK4396_DFS_NORMAL;
 171         ak4396_registers_init(chip);
 172         snd_component_add(chip->card, "AK4396");
 173 }
 174
 175 static void ak5385_init(struct oxygen *chip)
 176 {
 177         oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_AK5385_DFS_MASK);
 178         oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_AK5385_DFS_MASK);
 179         snd_component_add(chip->card, "AK5385");
 180 }
 181
 182 static void wm8785_registers_init(struct oxygen *chip)
 183 {
 184         struct generic_data *data = chip->model_data;
 185
 186         wm8785_write(chip, WM8785_R7, 0);
 187         wm8785_write(chip, WM8785_R0, data->wm8785_regs[0]);
 188         wm8785_write(chip, WM8785_R2, data->wm8785_regs[2]);
 189 }
 190
 191 static void wm8785_init(struct oxygen *chip)
 192 {
 193         struct generic_data *data = chip->model_data;
 194
 195         data->wm8785_regs[0] =
 196                 WM8785_MCR_SLAVE | WM8785_OSR_SINGLE | WM8785_FORMAT_LJUST;
 197         data->wm8785_regs[2] = WM8785_HPFR | WM8785_HPFL;
 198         wm8785_registers_init(chip);
 199         snd_component_add(chip->card, "WM8785");
 200 }
 201
 202 static void generic_init(struct oxygen *chip)
 203 {
 204         ak4396_init(chip);
 205         wm8785_init(chip);
 206 }
 207
 208 static void meridian_init(struct oxygen *chip)
 209 {
 210         ak4396_init(chip);
 211         ak5385_init(chip);
 212 }
 213
 214 static void claro_enable_hp(struct oxygen *chip)
 215 {
 216         msleep(300);
 217         oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_CLARO_HP);
 218         oxygen_set_bits16(chip, OXYGEN_GPIO_DATA, GPIO_CLARO_HP);
 219 }
 220
 221 static void claro_init(struct oxygen *chip)
 222 {
 223         ak4396_init(chip);
 224         wm8785_init(chip);
 225         claro_enable_hp(chip);
 226 }
 227
 228 static void claro_halo_init(struct oxygen *chip)
 229 {
 230         ak4396_init(chip);
 231         ak5385_init(chip);
 232         claro_enable_hp(chip);
 233 }
 234
 235 static void generic_cleanup(struct oxygen *chip)
 236 {
 237 }
 238
 239 static void claro_disable_hp(struct oxygen *chip)
 240 {
 241         oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, GPIO_CLARO_HP);
 242 }
 243
 244 static void claro_cleanup(struct oxygen *chip)
 245 {
 246         claro_disable_hp(chip);
 247 }
 248
 249 static void claro_suspend(struct oxygen *chip)
 250 {
 251         claro_disable_hp(chip);
 252 }
 253
 254 static void generic_resume(struct oxygen *chip)
 255 {
 256         ak4396_registers_init(chip);
 257         wm8785_registers_init(chip);
 258 }
 259
 260 static void meridian_resume(struct oxygen *chip)
 261 {
 262         ak4396_registers_init(chip);
 263 }
 264
 265 static void claro_resume(struct oxygen *chip)
 266 {
 267         ak4396_registers_init(chip);
 268         claro_enable_hp(chip);
 269 }
 270
 271 static void set_ak4396_params(struct oxygen *chip,
 272                               struct snd_pcm_hw_params *params)
 273 {
 274         struct generic_data *data = chip->model_data;
 275         unsigned int i;
 276         u8 value;
 277
 278         value = data->ak4396_regs[0][AK4396_CONTROL_2] & ~AK4396_DFS_MASK;
 279         if (params_rate(params) <= 54000)
 280                 value |= AK4396_DFS_NORMAL;
 281         else if (params_rate(params) <= 108000)
 282                 value |= AK4396_DFS_DOUBLE;
 283         else
 284                 value |= AK4396_DFS_QUAD;
 285
 286         msleep(1); /* wait for the new MCLK to become stable */
 287
 288         if (value != data->ak4396_regs[0][AK4396_CONTROL_2]) {
 289                 for (i = 0; i < 4; ++i) {
 290                         ak4396_write(chip, i, AK4396_CONTROL_1,
 291                                      AK4396_DIF_24_MSB);
 292                         ak4396_write(chip, i, AK4396_CONTROL_2, value);
 293                         ak4396_write(chip, i, AK4396_CONTROL_1,
 294                                      AK4396_DIF_24_MSB | AK4396_RSTN);
 295                 }
 296         }
 297 }
 298
 299 static void update_ak4396_volume(struct oxygen *chip)
 300 {
 301         unsigned int i;
 302
 303         for (i = 0; i < 4; ++i) {
 304                 ak4396_write_cached(chip, i, AK4396_LCH_ATT,
 305                                     chip->dac_volume[i * 2]);
 306                 ak4396_write_cached(chip, i, AK4396_RCH_ATT,
 307                                     chip->dac_volume[i * 2 + 1]);
 308         }
 309 }
 310
 311 static void update_ak4396_mute(struct oxygen *chip)
 312 {
 313         struct generic_data *data = chip->model_data;
 314         unsigned int i;
 315         u8 value;
 316
 317         value = data->ak4396_regs[0][AK4396_CONTROL_2] & ~AK4396_SMUTE;
 318         if (chip->dac_mute)
 319                 value |= AK4396_SMUTE;
 320         for (i = 0; i < 4; ++i)
 321                 ak4396_write_cached(chip, i, AK4396_CONTROL_2, value);
 322 }
 323
 324 static void set_wm8785_params(struct oxygen *chip,
 325                               struct snd_pcm_hw_params *params)
 326 {
 327         struct generic_data *data = chip->model_data;
 328         unsigned int value;
 329
 330         value = WM8785_MCR_SLAVE | WM8785_FORMAT_LJUST;
 331         if (params_rate(params) <= 48000)
 332                 value |= WM8785_OSR_SINGLE;
 333         else if (params_rate(params) <= 96000)
 334                 value |= WM8785_OSR_DOUBLE;
 335         else
 336                 value |= WM8785_OSR_QUAD;
 337         if (value != data->wm8785_regs[0]) {
 338                 wm8785_write(chip, WM8785_R7, 0);
 339                 wm8785_write(chip, WM8785_R0, value);
 340                 wm8785_write(chip, WM8785_R2, data->wm8785_regs[2]);
 341         }
 342 }
 343
 344 static void set_ak5385_params(struct oxygen *chip,
 345                               struct snd_pcm_hw_params *params)
 346 {
 347         unsigned int value;
 348
 349         if (params_rate(params) <= 54000)
 350                 value = GPIO_AK5385_DFS_NORMAL;
 351         else if (params_rate(params) <= 108000)
 352                 value = GPIO_AK5385_DFS_DOUBLE;
 353         else
 354                 value = GPIO_AK5385_DFS_QUAD;
 355         oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
 356                               value, GPIO_AK5385_DFS_MASK);
 357 }
 358
 359 static int rolloff_info(struct snd_kcontrol *ctl,
 360                         struct snd_ctl_elem_info *info)
 361 {
 362         static const char *const names[2] = {
 363                 "Sharp Roll-off", "Slow Roll-off"
 364         };
 365
 366         info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 367         info->count = 1;
 368         info->value.enumerated.items = 2;
 369         if (info->value.enumerated.item >= 2)
 370                 info->value.enumerated.item = 1;
 371         strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
 372         return 0;
 373 }
 374
 375 static int rolloff_get(struct snd_kcontrol *ctl,
 376                        struct snd_ctl_elem_value *value)
 377 {
 378         struct oxygen *chip = ctl->private_data;
 379         struct generic_data *data = chip->model_data;
 380
 381         value->value.enumerated.item[0] =
 382                 (data->ak4396_regs[0][AK4396_CONTROL_2] & AK4396_SLOW) != 0;
 383         return 0;
 384 }
 385
 386 static int rolloff_put(struct snd_kcontrol *ctl,
 387                        struct snd_ctl_elem_value *value)
 388 {
 389         struct oxygen *chip = ctl->private_data;
 390         struct generic_data *data = chip->model_data;
 391         unsigned int i;
 392         int changed;
 393         u8 reg;
 394
 395         mutex_lock(&chip->mutex);
 396         reg = data->ak4396_regs[0][AK4396_CONTROL_2];
 397         if (value->value.enumerated.item[0])
 398                 reg |= AK4396_SLOW;
 399         else
 400                 reg &= ~AK4396_SLOW;
 401         changed = reg != data->ak4396_regs[0][AK4396_CONTROL_2];
 402         if (changed) {
 403                 for (i = 0; i < 4; ++i)
 404                         ak4396_write(chip, i, AK4396_CONTROL_2, reg);
 405         }
 406         mutex_unlock(&chip->mutex);
 407         return changed;
 408 }
 409
 410 static const struct snd_kcontrol_new rolloff_control = {
 411         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 412         .name = "DAC Filter Playback Enum",
 413         .info = rolloff_info,
 414         .get = rolloff_get,
 415         .put = rolloff_put,
 416 };
 417
 418 static int hpf_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
 419 {
 420         static const char *const names[2] = {
 421                 "None", "High-pass Filter"
 422         };
 423
 424         info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 425         info->count = 1;
 426         info->value.enumerated.items = 2;
 427         if (info->value.enumerated.item >= 2)
 428                 info->value.enumerated.item = 1;
 429         strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
 430         return 0;
 431 }
 432
 433 static int hpf_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 434 {
 435         struct oxygen *chip = ctl->private_data;
 436         struct generic_data *data = chip->model_data;
 437
 438         value->value.enumerated.item[0] =
 439                 (data->wm8785_regs[WM8785_R2] & WM8785_HPFR) != 0;
 440         return 0;
 441 }
 442
 443 static int hpf_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 444 {
 445         struct oxygen *chip = ctl->private_data;
 446         struct generic_data *data = chip->model_data;
 447         unsigned int reg;
 448         int changed;
 449
 450         mutex_lock(&chip->mutex);
 451         reg = data->wm8785_regs[WM8785_R2] & ~(WM8785_HPFR | WM8785_HPFL);
 452         if (value->value.enumerated.item[0])
 453                 reg |= WM8785_HPFR | WM8785_HPFL;
 454         changed = reg != data->wm8785_regs[WM8785_R2];
 455         if (changed)
 456                 wm8785_write(chip, WM8785_R2, reg);
 457         mutex_unlock(&chip->mutex);
 458         return changed;
 459 }
 460
 461 static const struct snd_kcontrol_new hpf_control = {
 462         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 463         .name = "ADC Filter Capture Enum",
 464         .info = hpf_info,
 465         .get = hpf_get,
 466         .put = hpf_put,
 467 };
 468
 469 static int generic_mixer_init(struct oxygen *chip)
 470 {
 471         return snd_ctl_add(chip->card, snd_ctl_new1(&rolloff_control, chip));
 472 }
 473
 474 static int generic_wm8785_mixer_init(struct oxygen *chip)
 475 {
 476         int err;
 477
 478         err = generic_mixer_init(chip);
 479         if (err < 0)
 480                 return err;
 481         err = snd_ctl_add(chip->card, snd_ctl_new1(&hpf_control, chip));
 482         if (err < 0)
 483                 return err;
 484         return 0;
 485 }
 486
 487 static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0);
 488
 489 static const struct oxygen_model model_generic = {
 490         .shortname = "C-Media CMI8788",
 491         .longname = "C-Media Oxygen HD Audio",
 492         .chip = "CMI8788",
 493         .init = generic_init,
 494         .mixer_init = generic_wm8785_mixer_init,
 495         .cleanup = generic_cleanup,
 496         .resume = generic_resume,
 497         .get_i2s_mclk = oxygen_default_i2s_mclk,
 498         .set_dac_params = set_ak4396_params,
 499         .set_adc_params = set_wm8785_params,
 500         .update_dac_volume = update_ak4396_volume,
 501         .update_dac_mute = update_ak4396_mute,
 502         .dac_tlv = ak4396_db_scale,
 503         .model_data_size = sizeof(struct generic_data),
 504         .device_config = PLAYBACK_0_TO_I2S |
 505                          PLAYBACK_1_TO_SPDIF |
 506                          PLAYBACK_2_TO_AC97_1 |
 507                          CAPTURE_0_FROM_I2S_1 |
 508                          CAPTURE_1_FROM_SPDIF |
 509                          CAPTURE_2_FROM_AC97_1 |
 510                          AC97_CD_INPUT,
 511         .dac_channels = 8,
 512         .dac_volume_min = 0,
 513         .dac_volume_max = 255,
 514         .function_flags = OXYGEN_FUNCTION_SPI |
 515                           OXYGEN_FUNCTION_ENABLE_SPI_4_5,
 516         .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 517         .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 518 };
 519
 520 static int __devinit get_oxygen_model(struct oxygen *chip,
 521                                       const struct pci_device_id *id)
 522 {
 523         chip->model = model_generic;
 524         switch (id->driver_data) {
 525         case MODEL_MERIDIAN:
 526                 chip->model.init = meridian_init;
 527                 chip->model.mixer_init = generic_mixer_init;
 528                 chip->model.resume = meridian_resume;
 529                 chip->model.set_adc_params = set_ak5385_params;
 530                 chip->model.device_config = PLAYBACK_0_TO_I2S |
 531                                             PLAYBACK_1_TO_SPDIF |
 532                                             CAPTURE_0_FROM_I2S_2 |
 533                                             CAPTURE_1_FROM_SPDIF;
 534                 break;
 535         case MODEL_CLARO:
 536                 chip->model.init = claro_init;
 537                 chip->model.cleanup = claro_cleanup;
 538                 chip->model.suspend = claro_suspend;
 539                 chip->model.resume = claro_resume;
 540                 break;
 541         case MODEL_CLARO_HALO:
 542                 chip->model.init = claro_halo_init;
 543                 chip->model.mixer_init = generic_mixer_init;
 544                 chip->model.cleanup = claro_cleanup;
 545                 chip->model.suspend = claro_suspend;
 546                 chip->model.resume = claro_resume;
 547                 chip->model.set_adc_params = set_ak5385_params;
 548                 chip->model.device_config = PLAYBACK_0_TO_I2S |
 549                                             PLAYBACK_1_TO_SPDIF |
 550                                             CAPTURE_0_FROM_I2S_2 |
 551                                             CAPTURE_1_FROM_SPDIF;
 552                 break;
 553         }
 554         if (id->driver_data == MODEL_MERIDIAN ||
 555             id->driver_data == MODEL_CLARO_HALO) {
 556                 chip->model.misc_flags = OXYGEN_MISC_MIDI;
 557                 chip->model.device_config |= MIDI_OUTPUT | MIDI_INPUT;
 558         }
 559         return 0;
 560 }
 561
 562 static int __devinit generic_oxygen_probe(struct pci_dev *pci,
 563                                           const struct pci_device_id *pci_id)
 564 {
 565         static int dev;
 566         int err;
 567
 568         if (dev >= SNDRV_CARDS)
 569                 return -ENODEV;
 570         if (!enable[dev]) {
 571                 ++dev;
 572                 return -ENOENT;
 573         }
 574         err = oxygen_pci_probe(pci, index[dev], id[dev], THIS_MODULE,
 575                                oxygen_ids, get_oxygen_model);
 576         if (err >= 0)
 577                 ++dev;
 578         return err;
 579 }
 580
 581 static struct pci_driver oxygen_driver = {
 582         .name = "CMI8788",
 583         .id_table = oxygen_ids,
 584         .probe = generic_oxygen_probe,
 585         .remove = __devexit_p(oxygen_pci_remove),
 586 #ifdef CONFIG_PM
 587         .suspend = oxygen_pci_suspend,
 588         .resume = oxygen_pci_resume,
 589 #endif
 590 };
 591
 592 static int __init alsa_card_oxygen_init(void)
 593 {
 594         return pci_register_driver(&oxygen_driver);
 595 }
 596
 597 static void __exit alsa_card_oxygen_exit(void)
 598 {
 599         pci_unregister_driver(&oxygen_driver);
 600 }
 601
 602 module_init(alsa_card_oxygen_init)
 603 module_exit(alsa_card_oxygen_exit)