1 /* 2 * C-Media CMI8788 driver - main driver module 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 #include <linux/delay.h> 21 #include <linux/interrupt.h> 22 #include <linux/mutex.h> 23 #include <linux/pci.h> 24 #include <sound/ac97_codec.h> 25 #include <sound/asoundef.h> 26 #include <sound/core.h> 27 #include <sound/info.h> 28 #include <sound/mpu401.h> 29 #include <sound/pcm.h> 30 #include "oxygen.h" 31 #include "cm9780.h" 32 33 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); 34 MODULE_DESCRIPTION("C-Media CMI8788 helper library"); 35 MODULE_LICENSE("GPL"); 36 37 38 static irqreturn_t oxygen_interrupt(int dummy, void *dev_id) 39 { 40 struct oxygen *chip = dev_id; 41 unsigned int status, clear, elapsed_streams, i; 42 43 status = oxygen_read16(chip, OXYGEN_INTERRUPT_STATUS); 44 if (!status) 45 return IRQ_NONE; 46 47 spin_lock(&chip->reg_lock); 48 49 clear = status & (OXYGEN_CHANNEL_A | 50 OXYGEN_CHANNEL_B | 51 OXYGEN_CHANNEL_C | 52 OXYGEN_CHANNEL_SPDIF | 53 OXYGEN_CHANNEL_MULTICH | 54 OXYGEN_CHANNEL_AC97 | 55 OXYGEN_INT_SPDIF_IN_DETECT | 56 OXYGEN_INT_GPIO | 57 OXYGEN_INT_AC97); 58 if (clear) { 59 if (clear & OXYGEN_INT_SPDIF_IN_DETECT) 60 chip->interrupt_mask &= ~OXYGEN_INT_SPDIF_IN_DETECT; 61 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 62 chip->interrupt_mask & ~clear); 63 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 64 chip->interrupt_mask); 65 } 66 67 elapsed_streams = status & chip->pcm_running; 68 69 spin_unlock(&chip->reg_lock); 70 71 for (i = 0; i < PCM_COUNT; ++i) 72 if ((elapsed_streams & (1 << i)) && chip->streams[i]) 73 snd_pcm_period_elapsed(chip->streams[i]); 74 75 if (status & OXYGEN_INT_SPDIF_IN_DETECT) { 76 spin_lock(&chip->reg_lock); 77 i = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); 78 if (i & (OXYGEN_SPDIF_SENSE_INT | OXYGEN_SPDIF_LOCK_INT | 79 OXYGEN_SPDIF_RATE_INT)) { 80 /* write the interrupt bit(s) to clear */ 81 oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, i); 82 schedule_work(&chip->spdif_input_bits_work); 83 } 84 spin_unlock(&chip->reg_lock); 85 } 86 87 if (status & OXYGEN_INT_GPIO) 88 schedule_work(&chip->gpio_work); 89 90 if ((status & OXYGEN_INT_MIDI) && chip->midi) 91 snd_mpu401_uart_interrupt(0, chip->midi->private_data); 92 93 if (status & OXYGEN_INT_AC97) 94 wake_up(&chip->ac97_waitqueue); 95 96 return IRQ_HANDLED; 97 } 98 99 static void oxygen_spdif_input_bits_changed(struct work_struct *work) 100 { 101 struct oxygen *chip = container_of(work, struct oxygen, 102 spdif_input_bits_work); 103 u32 reg; 104 105 /* 106 * This function gets called when there is new activity on the SPDIF 107 * input, or when we lose lock on the input signal, or when the rate 108 * changes. 109 */ 110 msleep(1); 111 spin_lock_irq(&chip->reg_lock); 112 reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); 113 if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | 114 OXYGEN_SPDIF_LOCK_STATUS)) 115 == OXYGEN_SPDIF_SENSE_STATUS) { 116 /* 117 * If we detect activity on the SPDIF input but cannot lock to 118 * a signal, the clock bit is likely to be wrong. 119 */ 120 reg ^= OXYGEN_SPDIF_IN_CLOCK_MASK; 121 oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); 122 spin_unlock_irq(&chip->reg_lock); 123 msleep(1); 124 spin_lock_irq(&chip->reg_lock); 125 reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL); 126 if ((reg & (OXYGEN_SPDIF_SENSE_STATUS | 127 OXYGEN_SPDIF_LOCK_STATUS)) 128 == OXYGEN_SPDIF_SENSE_STATUS) { 129 /* nothing detected with either clock; give up */ 130 if ((reg & OXYGEN_SPDIF_IN_CLOCK_MASK) 131 == OXYGEN_SPDIF_IN_CLOCK_192) { 132 /* 133 * Reset clock to <= 96 kHz because this is 134 * more likely to be received next time. 135 */ 136 reg &= ~OXYGEN_SPDIF_IN_CLOCK_MASK; 137 reg |= OXYGEN_SPDIF_IN_CLOCK_96; 138 oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg); 139 } 140 } 141 } 142 spin_unlock_irq(&chip->reg_lock); 143 144 if (chip->controls[CONTROL_SPDIF_INPUT_BITS]) { 145 spin_lock_irq(&chip->reg_lock); 146 chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT; 147 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 148 chip->interrupt_mask); 149 spin_unlock_irq(&chip->reg_lock); 150 151 /* 152 * We don't actually know that any channel status bits have 153 * changed, but let's send a notification just to be sure. 154 */ 155 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 156 &chip->controls[CONTROL_SPDIF_INPUT_BITS]->id); 157 } 158 } 159 160 static void oxygen_gpio_changed(struct work_struct *work) 161 { 162 struct oxygen *chip = container_of(work, struct oxygen, gpio_work); 163 164 if (chip->model->gpio_changed) 165 chip->model->gpio_changed(chip); 166 } 167 168 #ifdef CONFIG_PROC_FS 169 static void oxygen_proc_read(struct snd_info_entry *entry, 170 struct snd_info_buffer *buffer) 171 { 172 struct oxygen *chip = entry->private_data; 173 int i, j; 174 175 snd_iprintf(buffer, "CMI8788\n\n"); 176 for (i = 0; i < 0x100; i += 0x10) { 177 snd_iprintf(buffer, "%02x:", i); 178 for (j = 0; j < 0x10; ++j) 179 snd_iprintf(buffer, " %02x", oxygen_read8(chip, i + j)); 180 snd_iprintf(buffer, "\n"); 181 } 182 if (mutex_lock_interruptible(&chip->mutex) < 0) 183 return; 184 if (chip->has_ac97_0) { 185 snd_iprintf(buffer, "\nAC97\n"); 186 for (i = 0; i < 0x80; i += 0x10) { 187 snd_iprintf(buffer, "%02x:", i); 188 for (j = 0; j < 0x10; j += 2) 189 snd_iprintf(buffer, " %04x", 190 oxygen_read_ac97(chip, 0, i + j)); 191 snd_iprintf(buffer, "\n"); 192 } 193 } 194 if (chip->has_ac97_1) { 195 snd_iprintf(buffer, "\nAC97 2\n"); 196 for (i = 0; i < 0x80; i += 0x10) { 197 snd_iprintf(buffer, "%02x:", i); 198 for (j = 0; j < 0x10; j += 2) 199 snd_iprintf(buffer, " %04x", 200 oxygen_read_ac97(chip, 1, i + j)); 201 snd_iprintf(buffer, "\n"); 202 } 203 } 204 mutex_unlock(&chip->mutex); 205 } 206 207 static void oxygen_proc_init(struct oxygen *chip) 208 { 209 struct snd_info_entry *entry; 210 211 if (!snd_card_proc_new(chip->card, "cmi8788", &entry)) 212 snd_info_set_text_ops(entry, chip, oxygen_proc_read); 213 } 214 #else 215 #define oxygen_proc_init(chip) 216 #endif 217 218 static void oxygen_init(struct oxygen *chip) 219 { 220 unsigned int i; 221 222 chip->dac_routing = 1; 223 for (i = 0; i < 8; ++i) 224 chip->dac_volume[i] = 0xff; 225 chip->spdif_playback_enable = 1; 226 chip->spdif_bits = OXYGEN_SPDIF_C | OXYGEN_SPDIF_ORIGINAL | 227 (IEC958_AES1_CON_PCM_CODER << OXYGEN_SPDIF_CATEGORY_SHIFT); 228 chip->spdif_pcm_bits = chip->spdif_bits; 229 230 if (oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_REVISION_2) 231 chip->revision = 2; 232 else 233 chip->revision = 1; 234 235 if (chip->revision == 1) 236 oxygen_set_bits8(chip, OXYGEN_MISC, 237 OXYGEN_MISC_PCI_MEM_W_1_CLOCK); 238 239 i = oxygen_read16(chip, OXYGEN_AC97_CONTROL); 240 chip->has_ac97_0 = (i & OXYGEN_AC97_CODEC_0) != 0; 241 chip->has_ac97_1 = (i & OXYGEN_AC97_CODEC_1) != 0; 242 243 oxygen_set_bits8(chip, OXYGEN_FUNCTION, 244 OXYGEN_FUNCTION_RESET_CODEC | 245 chip->model->function_flags); 246 oxygen_write8_masked(chip, OXYGEN_FUNCTION, 247 OXYGEN_FUNCTION_SPI, 248 OXYGEN_FUNCTION_2WIRE_SPI_MASK); 249 oxygen_write8(chip, OXYGEN_DMA_STATUS, 0); 250 oxygen_write8(chip, OXYGEN_DMA_PAUSE, 0); 251 oxygen_write8(chip, OXYGEN_PLAY_CHANNELS, 252 OXYGEN_PLAY_CHANNELS_2 | 253 OXYGEN_DMA_A_BURST_8 | 254 OXYGEN_DMA_MULTICH_BURST_8); 255 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); 256 oxygen_write8_masked(chip, OXYGEN_MISC, 0, 257 OXYGEN_MISC_WRITE_PCI_SUBID | 258 OXYGEN_MISC_REC_C_FROM_SPDIF | 259 OXYGEN_MISC_REC_B_FROM_AC97 | 260 OXYGEN_MISC_REC_A_FROM_MULTICH); 261 oxygen_write8(chip, OXYGEN_REC_FORMAT, 262 (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_A_SHIFT) | 263 (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_B_SHIFT) | 264 (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_C_SHIFT)); 265 oxygen_write8(chip, OXYGEN_PLAY_FORMAT, 266 (OXYGEN_FORMAT_16 << OXYGEN_SPDIF_FORMAT_SHIFT) | 267 (OXYGEN_FORMAT_16 << OXYGEN_MULTICH_FORMAT_SHIFT)); 268 oxygen_write8(chip, OXYGEN_REC_CHANNELS, OXYGEN_REC_CHANNELS_2_2_2); 269 oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT, 270 OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | 271 OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | 272 OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); 273 oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, 274 OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | 275 OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | 276 OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); 277 oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, 278 OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | 279 OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | 280 OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); 281 oxygen_write16(chip, OXYGEN_I2S_C_FORMAT, 282 OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST | 283 OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 | 284 OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); 285 oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, 286 OXYGEN_SPDIF_SENSE_MASK | 287 OXYGEN_SPDIF_LOCK_MASK | 288 OXYGEN_SPDIF_RATE_MASK | 289 OXYGEN_SPDIF_LOCK_PAR | 290 OXYGEN_SPDIF_IN_CLOCK_96, 291 OXYGEN_SPDIF_OUT_ENABLE | 292 OXYGEN_SPDIF_LOOPBACK | 293 OXYGEN_SPDIF_SENSE_MASK | 294 OXYGEN_SPDIF_LOCK_MASK | 295 OXYGEN_SPDIF_RATE_MASK | 296 OXYGEN_SPDIF_SENSE_PAR | 297 OXYGEN_SPDIF_LOCK_PAR | 298 OXYGEN_SPDIF_IN_CLOCK_MASK); 299 oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits); 300 oxygen_clear_bits8(chip, OXYGEN_MPU401_CONTROL, OXYGEN_MPU401_LOOPBACK); 301 oxygen_write8(chip, OXYGEN_GPI_INTERRUPT_MASK, 0); 302 oxygen_write16(chip, OXYGEN_GPIO_INTERRUPT_MASK, 0); 303 oxygen_write16(chip, OXYGEN_PLAY_ROUTING, 304 OXYGEN_PLAY_MULTICH_I2S_DAC | 305 OXYGEN_PLAY_SPDIF_SPDIF | 306 (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) | 307 (1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) | 308 (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) | 309 (3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT)); 310 oxygen_write8(chip, OXYGEN_REC_ROUTING, 311 OXYGEN_REC_A_ROUTE_I2S_ADC_1 | 312 OXYGEN_REC_B_ROUTE_I2S_ADC_2 | 313 OXYGEN_REC_C_ROUTE_SPDIF); 314 oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0); 315 oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING, 316 (0 << OXYGEN_A_MONITOR_ROUTE_0_SHIFT) | 317 (1 << OXYGEN_A_MONITOR_ROUTE_1_SHIFT) | 318 (2 << OXYGEN_A_MONITOR_ROUTE_2_SHIFT) | 319 (3 << OXYGEN_A_MONITOR_ROUTE_3_SHIFT)); 320 321 oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 322 OXYGEN_AC97_INT_READ_DONE | 323 OXYGEN_AC97_INT_WRITE_DONE); 324 oxygen_write32(chip, OXYGEN_AC97_OUT_CONFIG, 0); 325 oxygen_write32(chip, OXYGEN_AC97_IN_CONFIG, 0); 326 if (!(chip->has_ac97_0 | chip->has_ac97_1)) 327 oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, 328 OXYGEN_AC97_CLOCK_DISABLE); 329 if (!chip->has_ac97_0) { 330 oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, 331 OXYGEN_AC97_NO_CODEC_0); 332 } else { 333 oxygen_write_ac97(chip, 0, AC97_RESET, 0); 334 msleep(1); 335 oxygen_ac97_set_bits(chip, 0, CM9780_GPIO_SETUP, 336 CM9780_GPIO0IO | CM9780_GPIO1IO); 337 oxygen_ac97_set_bits(chip, 0, CM9780_MIXER, 338 CM9780_BSTSEL | CM9780_STRO_MIC | 339 CM9780_MIX2FR | CM9780_PCBSW); 340 oxygen_ac97_set_bits(chip, 0, CM9780_JACK, 341 CM9780_RSOE | CM9780_CBOE | 342 CM9780_SSOE | CM9780_FROE | 343 CM9780_MIC2MIC | CM9780_LI2LI); 344 oxygen_write_ac97(chip, 0, AC97_MASTER, 0x0000); 345 oxygen_write_ac97(chip, 0, AC97_PC_BEEP, 0x8000); 346 oxygen_write_ac97(chip, 0, AC97_MIC, 0x8808); 347 oxygen_write_ac97(chip, 0, AC97_LINE, 0x0808); 348 oxygen_write_ac97(chip, 0, AC97_CD, 0x8808); 349 oxygen_write_ac97(chip, 0, AC97_VIDEO, 0x8808); 350 oxygen_write_ac97(chip, 0, AC97_AUX, 0x8808); 351 oxygen_write_ac97(chip, 0, AC97_REC_GAIN, 0x8000); 352 oxygen_write_ac97(chip, 0, AC97_CENTER_LFE_MASTER, 0x8080); 353 oxygen_write_ac97(chip, 0, AC97_SURROUND_MASTER, 0x8080); 354 /* power down unused ADCs and DACs */ 355 oxygen_ac97_set_bits(chip, 0, AC97_POWERDOWN, 356 AC97_PD_PR0 | AC97_PD_PR1); 357 oxygen_ac97_set_bits(chip, 0, AC97_EXTENDED_STATUS, 358 AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK); 359 } 360 if (chip->has_ac97_1) { 361 oxygen_set_bits32(chip, OXYGEN_AC97_OUT_CONFIG, 362 OXYGEN_AC97_CODEC1_SLOT3 | 363 OXYGEN_AC97_CODEC1_SLOT4); 364 oxygen_write_ac97(chip, 1, AC97_RESET, 0); 365 msleep(1); 366 oxygen_write_ac97(chip, 1, AC97_MASTER, 0x0000); 367 oxygen_write_ac97(chip, 1, AC97_HEADPHONE, 0x8000); 368 oxygen_write_ac97(chip, 1, AC97_PC_BEEP, 0x8000); 369 oxygen_write_ac97(chip, 1, AC97_MIC, 0x8808); 370 oxygen_write_ac97(chip, 1, AC97_LINE, 0x8808); 371 oxygen_write_ac97(chip, 1, AC97_CD, 0x8808); 372 oxygen_write_ac97(chip, 1, AC97_VIDEO, 0x8808); 373 oxygen_write_ac97(chip, 1, AC97_AUX, 0x8808); 374 oxygen_write_ac97(chip, 1, AC97_PCM, 0x0808); 375 oxygen_write_ac97(chip, 1, AC97_REC_SEL, 0x0000); 376 oxygen_write_ac97(chip, 1, AC97_REC_GAIN, 0x0000); 377 oxygen_ac97_set_bits(chip, 1, 0x6a, 0x0040); 378 } 379 } 380 381 static void oxygen_card_free(struct snd_card *card) 382 { 383 struct oxygen *chip = card->private_data; 384 385 spin_lock_irq(&chip->reg_lock); 386 chip->interrupt_mask = 0; 387 chip->pcm_running = 0; 388 oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); 389 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); 390 spin_unlock_irq(&chip->reg_lock); 391 if (chip->irq >= 0) { 392 free_irq(chip->irq, chip); 393 synchronize_irq(chip->irq); 394 } 395 flush_scheduled_work(); 396 chip->model->cleanup(chip); 397 mutex_destroy(&chip->mutex); 398 pci_release_regions(chip->pci); 399 pci_disable_device(chip->pci); 400 } 401 402 int oxygen_pci_probe(struct pci_dev *pci, int index, char *id, 403 int midi, const struct oxygen_model *model) 404 { 405 struct snd_card *card; 406 struct oxygen *chip; 407 int err; 408 409 card = snd_card_new(index, id, model->owner, 410 sizeof *chip + model->model_data_size); 411 if (!card) 412 return -ENOMEM; 413 414 chip = card->private_data; 415 chip->card = card; 416 chip->pci = pci; 417 chip->irq = -1; 418 chip->model = model; 419 chip->model_data = chip + 1; 420 spin_lock_init(&chip->reg_lock); 421 mutex_init(&chip->mutex); 422 INIT_WORK(&chip->spdif_input_bits_work, 423 oxygen_spdif_input_bits_changed); 424 INIT_WORK(&chip->gpio_work, oxygen_gpio_changed); 425 init_waitqueue_head(&chip->ac97_waitqueue); 426 427 err = pci_enable_device(pci); 428 if (err < 0) 429 goto err_card; 430 431 err = pci_request_regions(pci, model->chip); 432 if (err < 0) { 433 snd_printk(KERN_ERR "cannot reserve PCI resources\n"); 434 goto err_pci_enable; 435 } 436 437 if (!(pci_resource_flags(pci, 0) & IORESOURCE_IO) || 438 pci_resource_len(pci, 0) < 0x100) { 439 snd_printk(KERN_ERR "invalid PCI I/O range\n"); 440 err = -ENXIO; 441 goto err_pci_regions; 442 } 443 chip->addr = pci_resource_start(pci, 0); 444 445 pci_set_master(pci); 446 snd_card_set_dev(card, &pci->dev); 447 card->private_free = oxygen_card_free; 448 449 oxygen_init(chip); 450 model->init(chip); 451 452 err = request_irq(pci->irq, oxygen_interrupt, IRQF_SHARED, 453 model->chip, chip); 454 if (err < 0) { 455 snd_printk(KERN_ERR "cannot grab interrupt %d\n", pci->irq); 456 goto err_card; 457 } 458 chip->irq = pci->irq; 459 460 strcpy(card->driver, model->chip); 461 strcpy(card->shortname, model->shortname); 462 sprintf(card->longname, "%s (rev %u) at %#lx, irq %i", 463 model->longname, chip->revision, chip->addr, chip->irq); 464 strcpy(card->mixername, model->chip); 465 snd_component_add(card, model->chip); 466 467 err = oxygen_pcm_init(chip); 468 if (err < 0) 469 goto err_card; 470 471 err = oxygen_mixer_init(chip); 472 if (err < 0) 473 goto err_card; 474 475 oxygen_write8_masked(chip, OXYGEN_MISC, 476 midi ? OXYGEN_MISC_MIDI : 0, OXYGEN_MISC_MIDI); 477 if (midi) { 478 err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI, 479 chip->addr + OXYGEN_MPU401, 480 MPU401_INFO_INTEGRATED, 0, 0, 481 &chip->midi); 482 if (err < 0) 483 goto err_card; 484 } 485 486 oxygen_proc_init(chip); 487 488 spin_lock_irq(&chip->reg_lock); 489 chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT | OXYGEN_INT_AC97; 490 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); 491 spin_unlock_irq(&chip->reg_lock); 492 493 err = snd_card_register(card); 494 if (err < 0) 495 goto err_card; 496 497 pci_set_drvdata(pci, card); 498 return 0; 499 500 err_pci_regions: 501 pci_release_regions(pci); 502 err_pci_enable: 503 pci_disable_device(pci); 504 err_card: 505 snd_card_free(card); 506 return err; 507 } 508 EXPORT_SYMBOL(oxygen_pci_probe); 509 510 void oxygen_pci_remove(struct pci_dev *pci) 511 { 512 snd_card_free(pci_get_drvdata(pci)); 513 pci_set_drvdata(pci, NULL); 514 } 515 EXPORT_SYMBOL(oxygen_pci_remove); 516