1 /* 2 * C-Media CMI8788 driver - PCM code 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/pci.h> 21 #include <sound/control.h> 22 #include <sound/core.h> 23 #include <sound/pcm.h> 24 #include <sound/pcm_params.h> 25 #include "oxygen.h" 26 27 /* most DMA channels have a 16-bit counter for 32-bit words */ 28 #define BUFFER_BYTES_MAX ((1 << 16) * 4) 29 /* the multichannel DMA channel has a 24-bit counter */ 30 #define BUFFER_BYTES_MAX_MULTICH ((1 << 24) * 4) 31 32 #define PERIOD_BYTES_MIN 64 33 34 #define DEFAULT_BUFFER_BYTES (BUFFER_BYTES_MAX / 2) 35 #define DEFAULT_BUFFER_BYTES_MULTICH (1024 * 1024) 36 37 static const struct snd_pcm_hardware oxygen_stereo_hardware = { 38 .info = SNDRV_PCM_INFO_MMAP | 39 SNDRV_PCM_INFO_MMAP_VALID | 40 SNDRV_PCM_INFO_INTERLEAVED | 41 SNDRV_PCM_INFO_PAUSE | 42 SNDRV_PCM_INFO_SYNC_START, 43 .formats = SNDRV_PCM_FMTBIT_S16_LE | 44 SNDRV_PCM_FMTBIT_S32_LE, 45 .rates = SNDRV_PCM_RATE_32000 | 46 SNDRV_PCM_RATE_44100 | 47 SNDRV_PCM_RATE_48000 | 48 SNDRV_PCM_RATE_64000 | 49 SNDRV_PCM_RATE_88200 | 50 SNDRV_PCM_RATE_96000 | 51 SNDRV_PCM_RATE_176400 | 52 SNDRV_PCM_RATE_192000, 53 .rate_min = 32000, 54 .rate_max = 192000, 55 .channels_min = 2, 56 .channels_max = 2, 57 .buffer_bytes_max = BUFFER_BYTES_MAX, 58 .period_bytes_min = PERIOD_BYTES_MIN, 59 .period_bytes_max = BUFFER_BYTES_MAX / 2, 60 .periods_min = 2, 61 .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, 62 }; 63 static const struct snd_pcm_hardware oxygen_multichannel_hardware = { 64 .info = SNDRV_PCM_INFO_MMAP | 65 SNDRV_PCM_INFO_MMAP_VALID | 66 SNDRV_PCM_INFO_INTERLEAVED | 67 SNDRV_PCM_INFO_PAUSE | 68 SNDRV_PCM_INFO_SYNC_START, 69 .formats = SNDRV_PCM_FMTBIT_S16_LE | 70 SNDRV_PCM_FMTBIT_S32_LE, 71 .rates = SNDRV_PCM_RATE_32000 | 72 SNDRV_PCM_RATE_44100 | 73 SNDRV_PCM_RATE_48000 | 74 SNDRV_PCM_RATE_64000 | 75 SNDRV_PCM_RATE_88200 | 76 SNDRV_PCM_RATE_96000 | 77 SNDRV_PCM_RATE_176400 | 78 SNDRV_PCM_RATE_192000, 79 .rate_min = 32000, 80 .rate_max = 192000, 81 .channels_min = 2, 82 .channels_max = 8, 83 .buffer_bytes_max = BUFFER_BYTES_MAX_MULTICH, 84 .period_bytes_min = PERIOD_BYTES_MIN, 85 .period_bytes_max = BUFFER_BYTES_MAX_MULTICH / 2, 86 .periods_min = 2, 87 .periods_max = BUFFER_BYTES_MAX_MULTICH / PERIOD_BYTES_MIN, 88 }; 89 static const struct snd_pcm_hardware oxygen_ac97_hardware = { 90 .info = SNDRV_PCM_INFO_MMAP | 91 SNDRV_PCM_INFO_MMAP_VALID | 92 SNDRV_PCM_INFO_INTERLEAVED | 93 SNDRV_PCM_INFO_PAUSE | 94 SNDRV_PCM_INFO_SYNC_START, 95 .formats = SNDRV_PCM_FMTBIT_S16_LE, 96 .rates = SNDRV_PCM_RATE_48000, 97 .rate_min = 48000, 98 .rate_max = 48000, 99 .channels_min = 2, 100 .channels_max = 2, 101 .buffer_bytes_max = BUFFER_BYTES_MAX, 102 .period_bytes_min = PERIOD_BYTES_MIN, 103 .period_bytes_max = BUFFER_BYTES_MAX / 2, 104 .periods_min = 2, 105 .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, 106 }; 107 108 static const struct snd_pcm_hardware *const oxygen_hardware[PCM_COUNT] = { 109 [PCM_A] = &oxygen_stereo_hardware, 110 [PCM_B] = &oxygen_stereo_hardware, 111 [PCM_C] = &oxygen_stereo_hardware, 112 [PCM_SPDIF] = &oxygen_stereo_hardware, 113 [PCM_MULTICH] = &oxygen_multichannel_hardware, 114 [PCM_AC97] = &oxygen_ac97_hardware, 115 }; 116 117 static inline unsigned int 118 oxygen_substream_channel(struct snd_pcm_substream *substream) 119 { 120 return (unsigned int)(uintptr_t)substream->runtime->private_data; 121 } 122 123 static int oxygen_open(struct snd_pcm_substream *substream, 124 unsigned int channel) 125 { 126 struct oxygen *chip = snd_pcm_substream_chip(substream); 127 struct snd_pcm_runtime *runtime = substream->runtime; 128 int err; 129 130 runtime->private_data = (void *)(uintptr_t)channel; 131 if (channel == PCM_B && chip->has_ac97_1 && 132 (chip->model.device_config & CAPTURE_2_FROM_AC97_1)) 133 runtime->hw = oxygen_ac97_hardware; 134 else 135 runtime->hw = *oxygen_hardware[channel]; 136 switch (channel) { 137 case PCM_C: 138 runtime->hw.rates &= ~(SNDRV_PCM_RATE_32000 | 139 SNDRV_PCM_RATE_64000); 140 runtime->hw.rate_min = 44100; 141 break; 142 case PCM_MULTICH: 143 runtime->hw.channels_max = chip->model.dac_channels; 144 break; 145 } 146 if (chip->model.pcm_hardware_filter) 147 chip->model.pcm_hardware_filter(channel, &runtime->hw); 148 err = snd_pcm_hw_constraint_step(runtime, 0, 149 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); 150 if (err < 0) 151 return err; 152 err = snd_pcm_hw_constraint_step(runtime, 0, 153 SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32); 154 if (err < 0) 155 return err; 156 if (runtime->hw.formats & SNDRV_PCM_FMTBIT_S32_LE) { 157 err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24); 158 if (err < 0) 159 return err; 160 } 161 if (runtime->hw.channels_max > 2) { 162 err = snd_pcm_hw_constraint_step(runtime, 0, 163 SNDRV_PCM_HW_PARAM_CHANNELS, 164 2); 165 if (err < 0) 166 return err; 167 } 168 if (channel == PCM_MULTICH) { 169 err = snd_pcm_hw_constraint_minmax 170 (runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 0, 8192000); 171 if (err < 0) 172 return err; 173 } 174 snd_pcm_set_sync(substream); 175 chip->streams[channel] = substream; 176 177 mutex_lock(&chip->mutex); 178 chip->pcm_active |= 1 << channel; 179 if (channel == PCM_SPDIF) { 180 chip->spdif_pcm_bits = chip->spdif_bits; 181 chip->controls[CONTROL_SPDIF_PCM]->vd[0].access &= 182 ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; 183 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE | 184 SNDRV_CTL_EVENT_MASK_INFO, 185 &chip->controls[CONTROL_SPDIF_PCM]->id); 186 } 187 mutex_unlock(&chip->mutex); 188 189 return 0; 190 } 191 192 static int oxygen_rec_a_open(struct snd_pcm_substream *substream) 193 { 194 return oxygen_open(substream, PCM_A); 195 } 196 197 static int oxygen_rec_b_open(struct snd_pcm_substream *substream) 198 { 199 return oxygen_open(substream, PCM_B); 200 } 201 202 static int oxygen_rec_c_open(struct snd_pcm_substream *substream) 203 { 204 return oxygen_open(substream, PCM_C); 205 } 206 207 static int oxygen_spdif_open(struct snd_pcm_substream *substream) 208 { 209 return oxygen_open(substream, PCM_SPDIF); 210 } 211 212 static int oxygen_multich_open(struct snd_pcm_substream *substream) 213 { 214 return oxygen_open(substream, PCM_MULTICH); 215 } 216 217 static int oxygen_ac97_open(struct snd_pcm_substream *substream) 218 { 219 return oxygen_open(substream, PCM_AC97); 220 } 221 222 static int oxygen_close(struct snd_pcm_substream *substream) 223 { 224 struct oxygen *chip = snd_pcm_substream_chip(substream); 225 unsigned int channel = oxygen_substream_channel(substream); 226 227 mutex_lock(&chip->mutex); 228 chip->pcm_active &= ~(1 << channel); 229 if (channel == PCM_SPDIF) { 230 chip->controls[CONTROL_SPDIF_PCM]->vd[0].access |= 231 SNDRV_CTL_ELEM_ACCESS_INACTIVE; 232 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE | 233 SNDRV_CTL_EVENT_MASK_INFO, 234 &chip->controls[CONTROL_SPDIF_PCM]->id); 235 } 236 if (channel == PCM_SPDIF || channel == PCM_MULTICH) 237 oxygen_update_spdif_source(chip); 238 mutex_unlock(&chip->mutex); 239 240 chip->streams[channel] = NULL; 241 return 0; 242 } 243 244 static unsigned int oxygen_format(struct snd_pcm_hw_params *hw_params) 245 { 246 if (params_format(hw_params) == SNDRV_PCM_FORMAT_S32_LE) 247 return OXYGEN_FORMAT_24; 248 else 249 return OXYGEN_FORMAT_16; 250 } 251 252 static unsigned int oxygen_rate(struct snd_pcm_hw_params *hw_params) 253 { 254 switch (params_rate(hw_params)) { 255 case 32000: 256 return OXYGEN_RATE_32000; 257 case 44100: 258 return OXYGEN_RATE_44100; 259 default: /* 48000 */ 260 return OXYGEN_RATE_48000; 261 case 64000: 262 return OXYGEN_RATE_64000; 263 case 88200: 264 return OXYGEN_RATE_88200; 265 case 96000: 266 return OXYGEN_RATE_96000; 267 case 176400: 268 return OXYGEN_RATE_176400; 269 case 192000: 270 return OXYGEN_RATE_192000; 271 } 272 } 273 274 static unsigned int oxygen_i2s_mclk(struct snd_pcm_hw_params *hw_params) 275 { 276 if (params_rate(hw_params) <= 96000) 277 return OXYGEN_I2S_MCLK_256; 278 else 279 return OXYGEN_I2S_MCLK_128; 280 } 281 282 static unsigned int oxygen_i2s_bits(struct snd_pcm_hw_params *hw_params) 283 { 284 if (params_format(hw_params) == SNDRV_PCM_FORMAT_S32_LE) 285 return OXYGEN_I2S_BITS_24; 286 else 287 return OXYGEN_I2S_BITS_16; 288 } 289 290 static unsigned int oxygen_play_channels(struct snd_pcm_hw_params *hw_params) 291 { 292 switch (params_channels(hw_params)) { 293 default: /* 2 */ 294 return OXYGEN_PLAY_CHANNELS_2; 295 case 4: 296 return OXYGEN_PLAY_CHANNELS_4; 297 case 6: 298 return OXYGEN_PLAY_CHANNELS_6; 299 case 8: 300 return OXYGEN_PLAY_CHANNELS_8; 301 } 302 } 303 304 static const unsigned int channel_base_registers[PCM_COUNT] = { 305 [PCM_A] = OXYGEN_DMA_A_ADDRESS, 306 [PCM_B] = OXYGEN_DMA_B_ADDRESS, 307 [PCM_C] = OXYGEN_DMA_C_ADDRESS, 308 [PCM_SPDIF] = OXYGEN_DMA_SPDIF_ADDRESS, 309 [PCM_MULTICH] = OXYGEN_DMA_MULTICH_ADDRESS, 310 [PCM_AC97] = OXYGEN_DMA_AC97_ADDRESS, 311 }; 312 313 static int oxygen_hw_params(struct snd_pcm_substream *substream, 314 struct snd_pcm_hw_params *hw_params) 315 { 316 struct oxygen *chip = snd_pcm_substream_chip(substream); 317 unsigned int channel = oxygen_substream_channel(substream); 318 int err; 319 320 err = snd_pcm_lib_malloc_pages(substream, 321 params_buffer_bytes(hw_params)); 322 if (err < 0) 323 return err; 324 325 oxygen_write32(chip, channel_base_registers[channel], 326 (u32)substream->runtime->dma_addr); 327 if (channel == PCM_MULTICH) { 328 oxygen_write32(chip, OXYGEN_DMA_MULTICH_COUNT, 329 params_buffer_bytes(hw_params) / 4 - 1); 330 oxygen_write32(chip, OXYGEN_DMA_MULTICH_TCOUNT, 331 params_period_bytes(hw_params) / 4 - 1); 332 } else { 333 oxygen_write16(chip, channel_base_registers[channel] + 4, 334 params_buffer_bytes(hw_params) / 4 - 1); 335 oxygen_write16(chip, channel_base_registers[channel] + 6, 336 params_period_bytes(hw_params) / 4 - 1); 337 } 338 return 0; 339 } 340 341 static int oxygen_rec_a_hw_params(struct snd_pcm_substream *substream, 342 struct snd_pcm_hw_params *hw_params) 343 { 344 struct oxygen *chip = snd_pcm_substream_chip(substream); 345 int err; 346 347 err = oxygen_hw_params(substream, hw_params); 348 if (err < 0) 349 return err; 350 351 spin_lock_irq(&chip->reg_lock); 352 oxygen_write8_masked(chip, OXYGEN_REC_FORMAT, 353 oxygen_format(hw_params) << OXYGEN_REC_FORMAT_A_SHIFT, 354 OXYGEN_REC_FORMAT_A_MASK); 355 oxygen_write16_masked(chip, OXYGEN_I2S_A_FORMAT, 356 oxygen_rate(hw_params) | 357 oxygen_i2s_mclk(hw_params) | 358 chip->model.adc_i2s_format | 359 oxygen_i2s_bits(hw_params), 360 OXYGEN_I2S_RATE_MASK | 361 OXYGEN_I2S_FORMAT_MASK | 362 OXYGEN_I2S_MCLK_MASK | 363 OXYGEN_I2S_BITS_MASK); 364 spin_unlock_irq(&chip->reg_lock); 365 366 mutex_lock(&chip->mutex); 367 chip->model.set_adc_params(chip, hw_params); 368 mutex_unlock(&chip->mutex); 369 return 0; 370 } 371 372 static int oxygen_rec_b_hw_params(struct snd_pcm_substream *substream, 373 struct snd_pcm_hw_params *hw_params) 374 { 375 struct oxygen *chip = snd_pcm_substream_chip(substream); 376 int is_ac97; 377 int err; 378 379 err = oxygen_hw_params(substream, hw_params); 380 if (err < 0) 381 return err; 382 383 is_ac97 = chip->has_ac97_1 && 384 (chip->model.device_config & CAPTURE_2_FROM_AC97_1); 385 386 spin_lock_irq(&chip->reg_lock); 387 oxygen_write8_masked(chip, OXYGEN_REC_FORMAT, 388 oxygen_format(hw_params) << OXYGEN_REC_FORMAT_B_SHIFT, 389 OXYGEN_REC_FORMAT_B_MASK); 390 if (!is_ac97) 391 oxygen_write16_masked(chip, OXYGEN_I2S_B_FORMAT, 392 oxygen_rate(hw_params) | 393 oxygen_i2s_mclk(hw_params) | 394 chip->model.adc_i2s_format | 395 oxygen_i2s_bits(hw_params), 396 OXYGEN_I2S_RATE_MASK | 397 OXYGEN_I2S_FORMAT_MASK | 398 OXYGEN_I2S_MCLK_MASK | 399 OXYGEN_I2S_BITS_MASK); 400 spin_unlock_irq(&chip->reg_lock); 401 402 if (!is_ac97) { 403 mutex_lock(&chip->mutex); 404 chip->model.set_adc_params(chip, hw_params); 405 mutex_unlock(&chip->mutex); 406 } 407 return 0; 408 } 409 410 static int oxygen_rec_c_hw_params(struct snd_pcm_substream *substream, 411 struct snd_pcm_hw_params *hw_params) 412 { 413 struct oxygen *chip = snd_pcm_substream_chip(substream); 414 int err; 415 416 err = oxygen_hw_params(substream, hw_params); 417 if (err < 0) 418 return err; 419 420 spin_lock_irq(&chip->reg_lock); 421 oxygen_write8_masked(chip, OXYGEN_REC_FORMAT, 422 oxygen_format(hw_params) << OXYGEN_REC_FORMAT_C_SHIFT, 423 OXYGEN_REC_FORMAT_C_MASK); 424 spin_unlock_irq(&chip->reg_lock); 425 return 0; 426 } 427 428 static int oxygen_spdif_hw_params(struct snd_pcm_substream *substream, 429 struct snd_pcm_hw_params *hw_params) 430 { 431 struct oxygen *chip = snd_pcm_substream_chip(substream); 432 int err; 433 434 err = oxygen_hw_params(substream, hw_params); 435 if (err < 0) 436 return err; 437 438 spin_lock_irq(&chip->reg_lock); 439 oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, 440 OXYGEN_SPDIF_OUT_ENABLE); 441 oxygen_write8_masked(chip, OXYGEN_PLAY_FORMAT, 442 oxygen_format(hw_params) << OXYGEN_SPDIF_FORMAT_SHIFT, 443 OXYGEN_SPDIF_FORMAT_MASK); 444 oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL, 445 oxygen_rate(hw_params) << OXYGEN_SPDIF_OUT_RATE_SHIFT, 446 OXYGEN_SPDIF_OUT_RATE_MASK); 447 oxygen_update_spdif_source(chip); 448 spin_unlock_irq(&chip->reg_lock); 449 return 0; 450 } 451 452 static int oxygen_multich_hw_params(struct snd_pcm_substream *substream, 453 struct snd_pcm_hw_params *hw_params) 454 { 455 struct oxygen *chip = snd_pcm_substream_chip(substream); 456 int err; 457 458 err = oxygen_hw_params(substream, hw_params); 459 if (err < 0) 460 return err; 461 462 spin_lock_irq(&chip->reg_lock); 463 oxygen_write8_masked(chip, OXYGEN_PLAY_CHANNELS, 464 oxygen_play_channels(hw_params), 465 OXYGEN_PLAY_CHANNELS_MASK); 466 oxygen_write8_masked(chip, OXYGEN_PLAY_FORMAT, 467 oxygen_format(hw_params) << OXYGEN_MULTICH_FORMAT_SHIFT, 468 OXYGEN_MULTICH_FORMAT_MASK); 469 oxygen_write16_masked(chip, OXYGEN_I2S_MULTICH_FORMAT, 470 oxygen_rate(hw_params) | 471 chip->model.dac_i2s_format | 472 oxygen_i2s_bits(hw_params), 473 OXYGEN_I2S_RATE_MASK | 474 OXYGEN_I2S_FORMAT_MASK | 475 OXYGEN_I2S_BITS_MASK); 476 oxygen_update_dac_routing(chip); 477 oxygen_update_spdif_source(chip); 478 spin_unlock_irq(&chip->reg_lock); 479 480 mutex_lock(&chip->mutex); 481 chip->model.set_dac_params(chip, hw_params); 482 mutex_unlock(&chip->mutex); 483 return 0; 484 } 485 486 static int oxygen_hw_free(struct snd_pcm_substream *substream) 487 { 488 struct oxygen *chip = snd_pcm_substream_chip(substream); 489 unsigned int channel = oxygen_substream_channel(substream); 490 491 spin_lock_irq(&chip->reg_lock); 492 chip->interrupt_mask &= ~(1 << channel); 493 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); 494 spin_unlock_irq(&chip->reg_lock); 495 496 return snd_pcm_lib_free_pages(substream); 497 } 498 499 static int oxygen_spdif_hw_free(struct snd_pcm_substream *substream) 500 { 501 struct oxygen *chip = snd_pcm_substream_chip(substream); 502 503 spin_lock_irq(&chip->reg_lock); 504 oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, 505 OXYGEN_SPDIF_OUT_ENABLE); 506 spin_unlock_irq(&chip->reg_lock); 507 return oxygen_hw_free(substream); 508 } 509 510 static int oxygen_prepare(struct snd_pcm_substream *substream) 511 { 512 struct oxygen *chip = snd_pcm_substream_chip(substream); 513 unsigned int channel = oxygen_substream_channel(substream); 514 unsigned int channel_mask = 1 << channel; 515 516 spin_lock_irq(&chip->reg_lock); 517 oxygen_set_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); 518 oxygen_clear_bits8(chip, OXYGEN_DMA_FLUSH, channel_mask); 519 520 chip->interrupt_mask |= channel_mask; 521 oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask); 522 spin_unlock_irq(&chip->reg_lock); 523 return 0; 524 } 525 526 static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd) 527 { 528 struct oxygen *chip = snd_pcm_substream_chip(substream); 529 struct snd_pcm_substream *s; 530 unsigned int mask = 0; 531 int pausing; 532 533 switch (cmd) { 534 case SNDRV_PCM_TRIGGER_STOP: 535 case SNDRV_PCM_TRIGGER_START: 536 case SNDRV_PCM_TRIGGER_SUSPEND: 537 pausing = 0; 538 break; 539 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 540 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 541 pausing = 1; 542 break; 543 default: 544 return -EINVAL; 545 } 546 547 snd_pcm_group_for_each_entry(s, substream) { 548 if (snd_pcm_substream_chip(s) == chip) { 549 mask |= 1 << oxygen_substream_channel(s); 550 snd_pcm_trigger_done(s, substream); 551 } 552 } 553 554 spin_lock(&chip->reg_lock); 555 if (!pausing) { 556 if (cmd == SNDRV_PCM_TRIGGER_START) 557 chip->pcm_running |= mask; 558 else 559 chip->pcm_running &= ~mask; 560 oxygen_write8(chip, OXYGEN_DMA_STATUS, chip->pcm_running); 561 } else { 562 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH) 563 oxygen_set_bits8(chip, OXYGEN_DMA_PAUSE, mask); 564 else 565 oxygen_clear_bits8(chip, OXYGEN_DMA_PAUSE, mask); 566 } 567 spin_unlock(&chip->reg_lock); 568 return 0; 569 } 570 571 static snd_pcm_uframes_t oxygen_pointer(struct snd_pcm_substream *substream) 572 { 573 struct oxygen *chip = snd_pcm_substream_chip(substream); 574 struct snd_pcm_runtime *runtime = substream->runtime; 575 unsigned int channel = oxygen_substream_channel(substream); 576 u32 curr_addr; 577 578 /* no spinlock, this read should be atomic */ 579 curr_addr = oxygen_read32(chip, channel_base_registers[channel]); 580 return bytes_to_frames(runtime, curr_addr - (u32)runtime->dma_addr); 581 } 582 583 static struct snd_pcm_ops oxygen_rec_a_ops = { 584 .open = oxygen_rec_a_open, 585 .close = oxygen_close, 586 .ioctl = snd_pcm_lib_ioctl, 587 .hw_params = oxygen_rec_a_hw_params, 588 .hw_free = oxygen_hw_free, 589 .prepare = oxygen_prepare, 590 .trigger = oxygen_trigger, 591 .pointer = oxygen_pointer, 592 }; 593 594 static struct snd_pcm_ops oxygen_rec_b_ops = { 595 .open = oxygen_rec_b_open, 596 .close = oxygen_close, 597 .ioctl = snd_pcm_lib_ioctl, 598 .hw_params = oxygen_rec_b_hw_params, 599 .hw_free = oxygen_hw_free, 600 .prepare = oxygen_prepare, 601 .trigger = oxygen_trigger, 602 .pointer = oxygen_pointer, 603 }; 604 605 static struct snd_pcm_ops oxygen_rec_c_ops = { 606 .open = oxygen_rec_c_open, 607 .close = oxygen_close, 608 .ioctl = snd_pcm_lib_ioctl, 609 .hw_params = oxygen_rec_c_hw_params, 610 .hw_free = oxygen_hw_free, 611 .prepare = oxygen_prepare, 612 .trigger = oxygen_trigger, 613 .pointer = oxygen_pointer, 614 }; 615 616 static struct snd_pcm_ops oxygen_spdif_ops = { 617 .open = oxygen_spdif_open, 618 .close = oxygen_close, 619 .ioctl = snd_pcm_lib_ioctl, 620 .hw_params = oxygen_spdif_hw_params, 621 .hw_free = oxygen_spdif_hw_free, 622 .prepare = oxygen_prepare, 623 .trigger = oxygen_trigger, 624 .pointer = oxygen_pointer, 625 }; 626 627 static struct snd_pcm_ops oxygen_multich_ops = { 628 .open = oxygen_multich_open, 629 .close = oxygen_close, 630 .ioctl = snd_pcm_lib_ioctl, 631 .hw_params = oxygen_multich_hw_params, 632 .hw_free = oxygen_hw_free, 633 .prepare = oxygen_prepare, 634 .trigger = oxygen_trigger, 635 .pointer = oxygen_pointer, 636 }; 637 638 static struct snd_pcm_ops oxygen_ac97_ops = { 639 .open = oxygen_ac97_open, 640 .close = oxygen_close, 641 .ioctl = snd_pcm_lib_ioctl, 642 .hw_params = oxygen_hw_params, 643 .hw_free = oxygen_hw_free, 644 .prepare = oxygen_prepare, 645 .trigger = oxygen_trigger, 646 .pointer = oxygen_pointer, 647 }; 648 649 static void oxygen_pcm_free(struct snd_pcm *pcm) 650 { 651 snd_pcm_lib_preallocate_free_for_all(pcm); 652 } 653 654 int oxygen_pcm_init(struct oxygen *chip) 655 { 656 struct snd_pcm *pcm; 657 int outs, ins; 658 int err; 659 660 outs = !!(chip->model.device_config & PLAYBACK_0_TO_I2S); 661 ins = !!(chip->model.device_config & (CAPTURE_0_FROM_I2S_1 | 662 CAPTURE_0_FROM_I2S_2)); 663 if (outs | ins) { 664 err = snd_pcm_new(chip->card, "Multichannel", 665 0, outs, ins, &pcm); 666 if (err < 0) 667 return err; 668 if (outs) 669 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 670 &oxygen_multich_ops); 671 if (chip->model.device_config & CAPTURE_0_FROM_I2S_1) 672 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 673 &oxygen_rec_a_ops); 674 else if (chip->model.device_config & CAPTURE_0_FROM_I2S_2) 675 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 676 &oxygen_rec_b_ops); 677 pcm->private_data = chip; 678 pcm->private_free = oxygen_pcm_free; 679 strcpy(pcm->name, "Multichannel"); 680 if (outs) 681 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, 682 SNDRV_DMA_TYPE_DEV, 683 snd_dma_pci_data(chip->pci), 684 DEFAULT_BUFFER_BYTES_MULTICH, 685 BUFFER_BYTES_MAX_MULTICH); 686 if (ins) 687 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, 688 SNDRV_DMA_TYPE_DEV, 689 snd_dma_pci_data(chip->pci), 690 DEFAULT_BUFFER_BYTES, 691 BUFFER_BYTES_MAX); 692 } 693 694 outs = !!(chip->model.device_config & PLAYBACK_1_TO_SPDIF); 695 ins = !!(chip->model.device_config & CAPTURE_1_FROM_SPDIF); 696 if (outs | ins) { 697 err = snd_pcm_new(chip->card, "Digital", 1, outs, ins, &pcm); 698 if (err < 0) 699 return err; 700 if (outs) 701 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 702 &oxygen_spdif_ops); 703 if (ins) 704 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 705 &oxygen_rec_c_ops); 706 pcm->private_data = chip; 707 pcm->private_free = oxygen_pcm_free; 708 strcpy(pcm->name, "Digital"); 709 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 710 snd_dma_pci_data(chip->pci), 711 DEFAULT_BUFFER_BYTES, 712 BUFFER_BYTES_MAX); 713 } 714 715 if (chip->has_ac97_1) { 716 outs = !!(chip->model.device_config & PLAYBACK_2_TO_AC97_1); 717 ins = !!(chip->model.device_config & CAPTURE_2_FROM_AC97_1); 718 } else { 719 outs = 0; 720 ins = !!(chip->model.device_config & CAPTURE_2_FROM_I2S_2); 721 } 722 if (outs | ins) { 723 err = snd_pcm_new(chip->card, outs ? "AC97" : "Analog2", 724 2, outs, ins, &pcm); 725 if (err < 0) 726 return err; 727 if (outs) { 728 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 729 &oxygen_ac97_ops); 730 oxygen_write8_masked(chip, OXYGEN_REC_ROUTING, 731 OXYGEN_REC_B_ROUTE_AC97_1, 732 OXYGEN_REC_B_ROUTE_MASK); 733 } 734 if (ins) 735 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 736 &oxygen_rec_b_ops); 737 pcm->private_data = chip; 738 pcm->private_free = oxygen_pcm_free; 739 strcpy(pcm->name, outs ? "Front Panel" : "Analog 2"); 740 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 741 snd_dma_pci_data(chip->pci), 742 DEFAULT_BUFFER_BYTES, 743 BUFFER_BYTES_MAX); 744 } 745 return 0; 746 } 747