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 v2"); 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 < OXYGEN_IO_SIZE; 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] = chip->model->dac_volume_min; 225 chip->dac_mute = 1; 226 chip->spdif_playback_enable = 1; 227 chip->spdif_bits = OXYGEN_SPDIF_C | OXYGEN_SPDIF_ORIGINAL | 228 (IEC958_AES1_CON_PCM_CODER << OXYGEN_SPDIF_CATEGORY_SHIFT); 229 chip->spdif_pcm_bits = chip->spdif_bits; 230 231 if (oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_REVISION_2) 232 chip->revision = 2; 233 else 234 chip->revision = 1; 235 236 if (chip->revision == 1) 237 oxygen_set_bits8(chip, OXYGEN_MISC, 238 OXYGEN_MISC_PCI_MEM_W_1_CLOCK); 239 240 i = oxygen_read16(chip, OXYGEN_AC97_CONTROL); 241 chip->has_ac97_0 = (i & OXYGEN_AC97_CODEC_0) != 0; 242 chip->has_ac97_1 = (i & OXYGEN_AC97_CODEC_1) != 0; 243 244 oxygen_write8_masked(chip, OXYGEN_FUNCTION, 245 OXYGEN_FUNCTION_RESET_CODEC | 246 chip->model->function_flags, 247 OXYGEN_FUNCTION_RESET_CODEC | 248 OXYGEN_FUNCTION_2WIRE_SPI_MASK | 249 OXYGEN_FUNCTION_ENABLE_SPI_4_5); 250 oxygen_write8(chip, OXYGEN_DMA_STATUS, 0); 251 oxygen_write8(chip, OXYGEN_DMA_PAUSE, 0); 252 oxygen_write8(chip, OXYGEN_PLAY_CHANNELS, 253 OXYGEN_PLAY_CHANNELS_2 | 254 OXYGEN_DMA_A_BURST_8 | 255 OXYGEN_DMA_MULTICH_BURST_8); 256 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); 257 oxygen_write8_masked(chip, OXYGEN_MISC, 258 chip->model->misc_flags, 259 OXYGEN_MISC_WRITE_PCI_SUBID | 260 OXYGEN_MISC_REC_C_FROM_SPDIF | 261 OXYGEN_MISC_REC_B_FROM_AC97 | 262 OXYGEN_MISC_REC_A_FROM_MULTICH | 263 OXYGEN_MISC_MIDI); 264 oxygen_write8(chip, OXYGEN_REC_FORMAT, 265 (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_A_SHIFT) | 266 (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_B_SHIFT) | 267 (OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_C_SHIFT)); 268 oxygen_write8(chip, OXYGEN_PLAY_FORMAT, 269 (OXYGEN_FORMAT_16 << OXYGEN_SPDIF_FORMAT_SHIFT) | 270 (OXYGEN_FORMAT_16 << OXYGEN_MULTICH_FORMAT_SHIFT)); 271 oxygen_write8(chip, OXYGEN_REC_CHANNELS, OXYGEN_REC_CHANNELS_2_2_2); 272 oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT, 273 OXYGEN_RATE_48000 | chip->model->dac_i2s_format | 274 OXYGEN_I2S_MCLK_256 | OXYGEN_I2S_BITS_16 | 275 OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); 276 if (chip->model->pcm_dev_cfg & CAPTURE_0_FROM_I2S_1) 277 oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, 278 OXYGEN_RATE_48000 | chip->model->adc_i2s_format | 279 OXYGEN_I2S_MCLK_256 | OXYGEN_I2S_BITS_16 | 280 OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); 281 else 282 oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, 283 OXYGEN_I2S_MASTER | OXYGEN_I2S_MUTE_MCLK); 284 if (chip->model->pcm_dev_cfg & (CAPTURE_0_FROM_I2S_2 | 285 CAPTURE_2_FROM_I2S_2)) 286 oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, 287 OXYGEN_RATE_48000 | chip->model->adc_i2s_format | 288 OXYGEN_I2S_MCLK_256 | OXYGEN_I2S_BITS_16 | 289 OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64); 290 else 291 oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, 292 OXYGEN_I2S_MASTER | OXYGEN_I2S_MUTE_MCLK); 293 oxygen_write16(chip, OXYGEN_I2S_C_FORMAT, 294 OXYGEN_I2S_MASTER | OXYGEN_I2S_MUTE_MCLK); 295 oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, 296 OXYGEN_SPDIF_OUT_ENABLE | 297 OXYGEN_SPDIF_LOOPBACK); 298 if (chip->model->pcm_dev_cfg & CAPTURE_1_FROM_SPDIF) 299 oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, 300 OXYGEN_SPDIF_SENSE_MASK | 301 OXYGEN_SPDIF_LOCK_MASK | 302 OXYGEN_SPDIF_RATE_MASK | 303 OXYGEN_SPDIF_LOCK_PAR | 304 OXYGEN_SPDIF_IN_CLOCK_96, 305 OXYGEN_SPDIF_SENSE_MASK | 306 OXYGEN_SPDIF_LOCK_MASK | 307 OXYGEN_SPDIF_RATE_MASK | 308 OXYGEN_SPDIF_SENSE_PAR | 309 OXYGEN_SPDIF_LOCK_PAR | 310 OXYGEN_SPDIF_IN_CLOCK_MASK); 311 else 312 oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, 313 OXYGEN_SPDIF_SENSE_MASK | 314 OXYGEN_SPDIF_LOCK_MASK | 315 OXYGEN_SPDIF_RATE_MASK); 316 oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits); 317 oxygen_write16(chip, OXYGEN_2WIRE_BUS_STATUS, 318 OXYGEN_2WIRE_LENGTH_8 | 319 OXYGEN_2WIRE_INTERRUPT_MASK | 320 OXYGEN_2WIRE_SPEED_STANDARD); 321 oxygen_clear_bits8(chip, OXYGEN_MPU401_CONTROL, OXYGEN_MPU401_LOOPBACK); 322 oxygen_write8(chip, OXYGEN_GPI_INTERRUPT_MASK, 0); 323 oxygen_write16(chip, OXYGEN_GPIO_INTERRUPT_MASK, 0); 324 oxygen_write16(chip, OXYGEN_PLAY_ROUTING, 325 OXYGEN_PLAY_MULTICH_I2S_DAC | 326 OXYGEN_PLAY_SPDIF_SPDIF | 327 (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) | 328 (1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) | 329 (2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) | 330 (3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT)); 331 oxygen_write8(chip, OXYGEN_REC_ROUTING, 332 OXYGEN_REC_A_ROUTE_I2S_ADC_1 | 333 OXYGEN_REC_B_ROUTE_I2S_ADC_2 | 334 OXYGEN_REC_C_ROUTE_SPDIF); 335 oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0); 336 oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING, 337 (0 << OXYGEN_A_MONITOR_ROUTE_0_SHIFT) | 338 (1 << OXYGEN_A_MONITOR_ROUTE_1_SHIFT) | 339 (2 << OXYGEN_A_MONITOR_ROUTE_2_SHIFT) | 340 (3 << OXYGEN_A_MONITOR_ROUTE_3_SHIFT)); 341 342 if (chip->has_ac97_0 | chip->has_ac97_1) 343 oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 344 OXYGEN_AC97_INT_READ_DONE | 345 OXYGEN_AC97_INT_WRITE_DONE); 346 else 347 oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0); 348 oxygen_write32(chip, OXYGEN_AC97_OUT_CONFIG, 0); 349 oxygen_write32(chip, OXYGEN_AC97_IN_CONFIG, 0); 350 if (!(chip->has_ac97_0 | chip->has_ac97_1)) 351 oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, 352 OXYGEN_AC97_CLOCK_DISABLE); 353 if (!chip->has_ac97_0) { 354 oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL, 355 OXYGEN_AC97_NO_CODEC_0); 356 } else { 357 oxygen_write_ac97(chip, 0, AC97_RESET, 0); 358 msleep(1); 359 oxygen_ac97_set_bits(chip, 0, CM9780_GPIO_SETUP, 360 CM9780_GPIO0IO | CM9780_GPIO1IO); 361 oxygen_ac97_set_bits(chip, 0, CM9780_MIXER, 362 CM9780_BSTSEL | CM9780_STRO_MIC | 363 CM9780_MIX2FR | CM9780_PCBSW); 364 oxygen_ac97_set_bits(chip, 0, CM9780_JACK, 365 CM9780_RSOE | CM9780_CBOE | 366 CM9780_SSOE | CM9780_FROE | 367 CM9780_MIC2MIC | CM9780_LI2LI); 368 oxygen_write_ac97(chip, 0, AC97_MASTER, 0x0000); 369 oxygen_write_ac97(chip, 0, AC97_PC_BEEP, 0x8000); 370 oxygen_write_ac97(chip, 0, AC97_MIC, 0x8808); 371 oxygen_write_ac97(chip, 0, AC97_LINE, 0x0808); 372 oxygen_write_ac97(chip, 0, AC97_CD, 0x8808); 373 oxygen_write_ac97(chip, 0, AC97_VIDEO, 0x8808); 374 oxygen_write_ac97(chip, 0, AC97_AUX, 0x8808); 375 oxygen_write_ac97(chip, 0, AC97_REC_GAIN, 0x8000); 376 oxygen_write_ac97(chip, 0, AC97_CENTER_LFE_MASTER, 0x8080); 377 oxygen_write_ac97(chip, 0, AC97_SURROUND_MASTER, 0x8080); 378 oxygen_ac97_clear_bits(chip, 0, CM9780_GPIO_STATUS, 379 CM9780_GPO0); 380 /* power down unused ADCs and DACs */ 381 oxygen_ac97_set_bits(chip, 0, AC97_POWERDOWN, 382 AC97_PD_PR0 | AC97_PD_PR1); 383 oxygen_ac97_set_bits(chip, 0, AC97_EXTENDED_STATUS, 384 AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK); 385 } 386 if (chip->has_ac97_1) { 387 oxygen_set_bits32(chip, OXYGEN_AC97_OUT_CONFIG, 388 OXYGEN_AC97_CODEC1_SLOT3 | 389 OXYGEN_AC97_CODEC1_SLOT4); 390 oxygen_write_ac97(chip, 1, AC97_RESET, 0); 391 msleep(1); 392 oxygen_write_ac97(chip, 1, AC97_MASTER, 0x0000); 393 oxygen_write_ac97(chip, 1, AC97_HEADPHONE, 0x8000); 394 oxygen_write_ac97(chip, 1, AC97_PC_BEEP, 0x8000); 395 oxygen_write_ac97(chip, 1, AC97_MIC, 0x8808); 396 oxygen_write_ac97(chip, 1, AC97_LINE, 0x8808); 397 oxygen_write_ac97(chip, 1, AC97_CD, 0x8808); 398 oxygen_write_ac97(chip, 1, AC97_VIDEO, 0x8808); 399 oxygen_write_ac97(chip, 1, AC97_AUX, 0x8808); 400 oxygen_write_ac97(chip, 1, AC97_PCM, 0x0808); 401 oxygen_write_ac97(chip, 1, AC97_REC_SEL, 0x0000); 402 oxygen_write_ac97(chip, 1, AC97_REC_GAIN, 0x0000); 403 oxygen_ac97_set_bits(chip, 1, 0x6a, 0x0040); 404 } 405 } 406 407 static void oxygen_card_free(struct snd_card *card) 408 { 409 struct oxygen *chip = card->private_data; 410 411 spin_lock_irq(&chip->reg_lock); 412 chip->interrupt_mask = 0; 413 chip->pcm_running = 0; 414 oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); 415 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); 416 spin_unlock_irq(&chip->reg_lock); 417 if (chip->irq >= 0) 418 free_irq(chip->irq, chip); 419 flush_scheduled_work(); 420 chip->model->cleanup(chip); 421 mutex_destroy(&chip->mutex); 422 pci_release_regions(chip->pci); 423 pci_disable_device(chip->pci); 424 } 425 426 int oxygen_pci_probe(struct pci_dev *pci, int index, char *id, 427 const struct oxygen_model *model) 428 { 429 struct snd_card *card; 430 struct oxygen *chip; 431 int err; 432 433 card = snd_card_new(index, id, model->owner, 434 sizeof *chip + model->model_data_size); 435 if (!card) 436 return -ENOMEM; 437 438 chip = card->private_data; 439 chip->card = card; 440 chip->pci = pci; 441 chip->irq = -1; 442 chip->model = model; 443 chip->model_data = chip + 1; 444 spin_lock_init(&chip->reg_lock); 445 mutex_init(&chip->mutex); 446 INIT_WORK(&chip->spdif_input_bits_work, 447 oxygen_spdif_input_bits_changed); 448 INIT_WORK(&chip->gpio_work, oxygen_gpio_changed); 449 init_waitqueue_head(&chip->ac97_waitqueue); 450 451 err = pci_enable_device(pci); 452 if (err < 0) 453 goto err_card; 454 455 err = pci_request_regions(pci, model->chip); 456 if (err < 0) { 457 snd_printk(KERN_ERR "cannot reserve PCI resources\n"); 458 goto err_pci_enable; 459 } 460 461 if (!(pci_resource_flags(pci, 0) & IORESOURCE_IO) || 462 pci_resource_len(pci, 0) < OXYGEN_IO_SIZE) { 463 snd_printk(KERN_ERR "invalid PCI I/O range\n"); 464 err = -ENXIO; 465 goto err_pci_regions; 466 } 467 chip->addr = pci_resource_start(pci, 0); 468 469 pci_set_master(pci); 470 snd_card_set_dev(card, &pci->dev); 471 card->private_free = oxygen_card_free; 472 473 oxygen_init(chip); 474 model->init(chip); 475 476 err = request_irq(pci->irq, oxygen_interrupt, IRQF_SHARED, 477 model->chip, chip); 478 if (err < 0) { 479 snd_printk(KERN_ERR "cannot grab interrupt %d\n", pci->irq); 480 goto err_card; 481 } 482 chip->irq = pci->irq; 483 484 strcpy(card->driver, model->chip); 485 strcpy(card->shortname, model->shortname); 486 sprintf(card->longname, "%s (rev %u) at %#lx, irq %i", 487 model->longname, chip->revision, chip->addr, chip->irq); 488 strcpy(card->mixername, model->chip); 489 snd_component_add(card, model->chip); 490 491 err = oxygen_pcm_init(chip); 492 if (err < 0) 493 goto err_card; 494 495 err = oxygen_mixer_init(chip); 496 if (err < 0) 497 goto err_card; 498 499 if (model->misc_flags & OXYGEN_MISC_MIDI) { 500 err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI, 501 chip->addr + OXYGEN_MPU401, 502 MPU401_INFO_INTEGRATED, 0, 0, 503 &chip->midi); 504 if (err < 0) 505 goto err_card; 506 } 507 508 oxygen_proc_init(chip); 509 510 spin_lock_irq(&chip->reg_lock); 511 if (chip->model->pcm_dev_cfg & CAPTURE_1_FROM_SPDIF) 512 chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT; 513 if (chip->has_ac97_0 | chip->has_ac97_1) 514 chip->interrupt_mask |= OXYGEN_INT_AC97; 515 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); 516 spin_unlock_irq(&chip->reg_lock); 517 518 err = snd_card_register(card); 519 if (err < 0) 520 goto err_card; 521 522 pci_set_drvdata(pci, card); 523 return 0; 524 525 err_pci_regions: 526 pci_release_regions(pci); 527 err_pci_enable: 528 pci_disable_device(pci); 529 err_card: 530 snd_card_free(card); 531 return err; 532 } 533 EXPORT_SYMBOL(oxygen_pci_probe); 534 535 void oxygen_pci_remove(struct pci_dev *pci) 536 { 537 snd_card_free(pci_get_drvdata(pci)); 538 pci_set_drvdata(pci, NULL); 539 } 540 EXPORT_SYMBOL(oxygen_pci_remove); 541 542 #ifdef CONFIG_PM 543 int oxygen_pci_suspend(struct pci_dev *pci, pm_message_t state) 544 { 545 struct snd_card *card = pci_get_drvdata(pci); 546 struct oxygen *chip = card->private_data; 547 unsigned int i, saved_interrupt_mask; 548 549 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 550 551 for (i = 0; i < PCM_COUNT; ++i) 552 if (chip->streams[i]) 553 snd_pcm_suspend(chip->streams[i]); 554 555 if (chip->model->suspend) 556 chip->model->suspend(chip); 557 558 spin_lock_irq(&chip->reg_lock); 559 saved_interrupt_mask = chip->interrupt_mask; 560 chip->interrupt_mask = 0; 561 oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); 562 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); 563 spin_unlock_irq(&chip->reg_lock); 564 565 synchronize_irq(chip->irq); 566 flush_scheduled_work(); 567 chip->interrupt_mask = saved_interrupt_mask; 568 569 pci_disable_device(pci); 570 pci_save_state(pci); 571 pci_set_power_state(pci, pci_choose_state(pci, state)); 572 return 0; 573 } 574 EXPORT_SYMBOL(oxygen_pci_suspend); 575 576 static const u32 registers_to_restore[OXYGEN_IO_SIZE / 32] = { 577 0xffffffff, 0x00ff077f, 0x00011d08, 0x007f00ff, 578 0x00300000, 0x00000fe4, 0x0ff7001f, 0x00000000 579 }; 580 static const u32 ac97_registers_to_restore[2][0x40 / 32] = { 581 { 0x18284fa2, 0x03060000 }, 582 { 0x00007fa6, 0x00200000 } 583 }; 584 585 static inline int is_bit_set(const u32 *bitmap, unsigned int bit) 586 { 587 return bitmap[bit / 32] & (1 << (bit & 31)); 588 } 589 590 static void oxygen_restore_ac97(struct oxygen *chip, unsigned int codec) 591 { 592 unsigned int i; 593 594 oxygen_write_ac97(chip, codec, AC97_RESET, 0); 595 msleep(1); 596 for (i = 1; i < 0x40; ++i) 597 if (is_bit_set(ac97_registers_to_restore[codec], i)) 598 oxygen_write_ac97(chip, codec, i * 2, 599 chip->saved_ac97_registers[codec][i]); 600 } 601 602 int oxygen_pci_resume(struct pci_dev *pci) 603 { 604 struct snd_card *card = pci_get_drvdata(pci); 605 struct oxygen *chip = card->private_data; 606 unsigned int i; 607 608 pci_set_power_state(pci, PCI_D0); 609 pci_restore_state(pci); 610 if (pci_enable_device(pci) < 0) { 611 snd_printk(KERN_ERR "cannot reenable device"); 612 snd_card_disconnect(card); 613 return -EIO; 614 } 615 pci_set_master(pci); 616 617 oxygen_write16(chip, OXYGEN_DMA_STATUS, 0); 618 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0); 619 for (i = 0; i < OXYGEN_IO_SIZE; ++i) 620 if (is_bit_set(registers_to_restore, i)) 621 oxygen_write8(chip, i, chip->saved_registers._8[i]); 622 if (chip->has_ac97_0) 623 oxygen_restore_ac97(chip, 0); 624 if (chip->has_ac97_1) 625 oxygen_restore_ac97(chip, 1); 626 627 if (chip->model->resume) 628 chip->model->resume(chip); 629 630 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); 631 632 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 633 return 0; 634 } 635 EXPORT_SYMBOL(oxygen_pci_resume); 636 #endif /* CONFIG_PM */ 637