1 /***************************************************************************** 2 * 3 * Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and 4 * Jean-Christian Hassler <jhassler@free.fr> 5 * 6 * This file is part of the Audiowerk2 ALSA driver 7 * 8 * The Audiowerk2 ALSA driver is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; version 2. 11 * 12 * The Audiowerk2 ALSA driver is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with the Audiowerk2 ALSA driver; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 20 * USA. 21 * 22 *****************************************************************************/ 23 #include <linux/init.h> 24 #include <linux/pci.h> 25 #include <linux/dma-mapping.h> 26 #include <linux/slab.h> 27 #include <linux/interrupt.h> 28 #include <linux/delay.h> 29 #include <linux/io.h> 30 #include <linux/module.h> 31 #include <sound/core.h> 32 #include <sound/initval.h> 33 #include <sound/pcm.h> 34 #include <sound/pcm_params.h> 35 #include <sound/control.h> 36 37 #include "saa7146.h" 38 #include "aw2-saa7146.h" 39 40 MODULE_AUTHOR("Cedric Bregardis <cedric.bregardis@free.fr>, " 41 "Jean-Christian Hassler <jhassler@free.fr>"); 42 MODULE_DESCRIPTION("Emagic Audiowerk 2 sound driver"); 43 MODULE_LICENSE("GPL"); 44 45 /********************************* 46 * DEFINES 47 ********************************/ 48 #define CTL_ROUTE_ANALOG 0 49 #define CTL_ROUTE_DIGITAL 1 50 51 /********************************* 52 * TYPEDEFS 53 ********************************/ 54 /* hardware definition */ 55 static const struct snd_pcm_hardware snd_aw2_playback_hw = { 56 .info = (SNDRV_PCM_INFO_MMAP | 57 SNDRV_PCM_INFO_INTERLEAVED | 58 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID), 59 .formats = SNDRV_PCM_FMTBIT_S16_LE, 60 .rates = SNDRV_PCM_RATE_44100, 61 .rate_min = 44100, 62 .rate_max = 44100, 63 .channels_min = 2, 64 .channels_max = 4, 65 .buffer_bytes_max = 32768, 66 .period_bytes_min = 4096, 67 .period_bytes_max = 32768, 68 .periods_min = 1, 69 .periods_max = 1024, 70 }; 71 72 static const struct snd_pcm_hardware snd_aw2_capture_hw = { 73 .info = (SNDRV_PCM_INFO_MMAP | 74 SNDRV_PCM_INFO_INTERLEAVED | 75 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID), 76 .formats = SNDRV_PCM_FMTBIT_S16_LE, 77 .rates = SNDRV_PCM_RATE_44100, 78 .rate_min = 44100, 79 .rate_max = 44100, 80 .channels_min = 2, 81 .channels_max = 2, 82 .buffer_bytes_max = 32768, 83 .period_bytes_min = 4096, 84 .period_bytes_max = 32768, 85 .periods_min = 1, 86 .periods_max = 1024, 87 }; 88 89 struct aw2_pcm_device { 90 struct snd_pcm *pcm; 91 unsigned int stream_number; 92 struct aw2 *chip; 93 }; 94 95 struct aw2 { 96 struct snd_aw2_saa7146 saa7146; 97 98 struct pci_dev *pci; 99 int irq; 100 spinlock_t reg_lock; 101 struct mutex mtx; 102 103 unsigned long iobase_phys; 104 void __iomem *iobase_virt; 105 106 struct snd_card *card; 107 108 struct aw2_pcm_device device_playback[NB_STREAM_PLAYBACK]; 109 struct aw2_pcm_device device_capture[NB_STREAM_CAPTURE]; 110 }; 111 112 /********************************* 113 * FUNCTION DECLARATIONS 114 ********************************/ 115 static int snd_aw2_dev_free(struct snd_device *device); 116 static int snd_aw2_create(struct snd_card *card, 117 struct pci_dev *pci, struct aw2 **rchip); 118 static int snd_aw2_probe(struct pci_dev *pci, 119 const struct pci_device_id *pci_id); 120 static void snd_aw2_remove(struct pci_dev *pci); 121 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream); 122 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream); 123 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream); 124 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream); 125 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream, 126 struct snd_pcm_hw_params *hw_params); 127 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream); 128 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream); 129 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream); 130 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream, 131 int cmd); 132 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream, 133 int cmd); 134 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream 135 *substream); 136 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream 137 *substream); 138 static int snd_aw2_new_pcm(struct aw2 *chip); 139 140 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol, 141 struct snd_ctl_elem_info *uinfo); 142 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol, 143 struct snd_ctl_elem_value 144 *ucontrol); 145 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol, 146 struct snd_ctl_elem_value 147 *ucontrol); 148 149 /********************************* 150 * VARIABLES 151 ********************************/ 152 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 153 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 154 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 155 156 module_param_array(index, int, NULL, 0444); 157 MODULE_PARM_DESC(index, "Index value for Audiowerk2 soundcard."); 158 module_param_array(id, charp, NULL, 0444); 159 MODULE_PARM_DESC(id, "ID string for the Audiowerk2 soundcard."); 160 module_param_array(enable, bool, NULL, 0444); 161 MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard."); 162 163 static const struct pci_device_id snd_aw2_ids[] = { 164 {PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146, 0, 0, 165 0, 0, 0}, 166 {0} 167 }; 168 169 MODULE_DEVICE_TABLE(pci, snd_aw2_ids); 170 171 /* pci_driver definition */ 172 static struct pci_driver aw2_driver = { 173 .name = KBUILD_MODNAME, 174 .id_table = snd_aw2_ids, 175 .probe = snd_aw2_probe, 176 .remove = snd_aw2_remove, 177 }; 178 179 module_pci_driver(aw2_driver); 180 181 /* operators for playback PCM alsa interface */ 182 static const struct snd_pcm_ops snd_aw2_playback_ops = { 183 .open = snd_aw2_pcm_playback_open, 184 .close = snd_aw2_pcm_playback_close, 185 .ioctl = snd_pcm_lib_ioctl, 186 .hw_params = snd_aw2_pcm_hw_params, 187 .hw_free = snd_aw2_pcm_hw_free, 188 .prepare = snd_aw2_pcm_prepare_playback, 189 .trigger = snd_aw2_pcm_trigger_playback, 190 .pointer = snd_aw2_pcm_pointer_playback, 191 }; 192 193 /* operators for capture PCM alsa interface */ 194 static const struct snd_pcm_ops snd_aw2_capture_ops = { 195 .open = snd_aw2_pcm_capture_open, 196 .close = snd_aw2_pcm_capture_close, 197 .ioctl = snd_pcm_lib_ioctl, 198 .hw_params = snd_aw2_pcm_hw_params, 199 .hw_free = snd_aw2_pcm_hw_free, 200 .prepare = snd_aw2_pcm_prepare_capture, 201 .trigger = snd_aw2_pcm_trigger_capture, 202 .pointer = snd_aw2_pcm_pointer_capture, 203 }; 204 205 static const struct snd_kcontrol_new aw2_control = { 206 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 207 .name = "PCM Capture Route", 208 .index = 0, 209 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 210 .private_value = 0xffff, 211 .info = snd_aw2_control_switch_capture_info, 212 .get = snd_aw2_control_switch_capture_get, 213 .put = snd_aw2_control_switch_capture_put 214 }; 215 216 /********************************* 217 * FUNCTION IMPLEMENTATIONS 218 ********************************/ 219 220 /* component-destructor */ 221 static int snd_aw2_dev_free(struct snd_device *device) 222 { 223 struct aw2 *chip = device->device_data; 224 225 /* Free hardware */ 226 snd_aw2_saa7146_free(&chip->saa7146); 227 228 /* release the irq */ 229 if (chip->irq >= 0) 230 free_irq(chip->irq, (void *)chip); 231 /* release the i/o ports & memory */ 232 iounmap(chip->iobase_virt); 233 pci_release_regions(chip->pci); 234 /* disable the PCI entry */ 235 pci_disable_device(chip->pci); 236 /* release the data */ 237 kfree(chip); 238 239 return 0; 240 } 241 242 /* chip-specific constructor */ 243 static int snd_aw2_create(struct snd_card *card, 244 struct pci_dev *pci, struct aw2 **rchip) 245 { 246 struct aw2 *chip; 247 int err; 248 static struct snd_device_ops ops = { 249 .dev_free = snd_aw2_dev_free, 250 }; 251 252 *rchip = NULL; 253 254 /* initialize the PCI entry */ 255 err = pci_enable_device(pci); 256 if (err < 0) 257 return err; 258 pci_set_master(pci); 259 260 /* check PCI availability (32bit DMA) */ 261 if ((dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) || 262 (dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32)) < 0)) { 263 dev_err(card->dev, "Impossible to set 32bit mask DMA\n"); 264 pci_disable_device(pci); 265 return -ENXIO; 266 } 267 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 268 if (chip == NULL) { 269 pci_disable_device(pci); 270 return -ENOMEM; 271 } 272 273 /* initialize the stuff */ 274 chip->card = card; 275 chip->pci = pci; 276 chip->irq = -1; 277 278 /* (1) PCI resource allocation */ 279 err = pci_request_regions(pci, "Audiowerk2"); 280 if (err < 0) { 281 pci_disable_device(pci); 282 kfree(chip); 283 return err; 284 } 285 chip->iobase_phys = pci_resource_start(pci, 0); 286 chip->iobase_virt = 287 ioremap_nocache(chip->iobase_phys, 288 pci_resource_len(pci, 0)); 289 290 if (chip->iobase_virt == NULL) { 291 dev_err(card->dev, "unable to remap memory region"); 292 pci_release_regions(pci); 293 pci_disable_device(pci); 294 kfree(chip); 295 return -ENOMEM; 296 } 297 298 /* (2) initialization of the chip hardware */ 299 snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt); 300 301 if (request_irq(pci->irq, snd_aw2_saa7146_interrupt, 302 IRQF_SHARED, KBUILD_MODNAME, chip)) { 303 dev_err(card->dev, "Cannot grab irq %d\n", pci->irq); 304 305 iounmap(chip->iobase_virt); 306 pci_release_regions(chip->pci); 307 pci_disable_device(chip->pci); 308 kfree(chip); 309 return -EBUSY; 310 } 311 chip->irq = pci->irq; 312 313 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 314 if (err < 0) { 315 free_irq(chip->irq, (void *)chip); 316 iounmap(chip->iobase_virt); 317 pci_release_regions(chip->pci); 318 pci_disable_device(chip->pci); 319 kfree(chip); 320 return err; 321 } 322 323 *rchip = chip; 324 325 dev_info(card->dev, 326 "Audiowerk 2 sound card (saa7146 chipset) detected and managed\n"); 327 return 0; 328 } 329 330 /* constructor */ 331 static int snd_aw2_probe(struct pci_dev *pci, 332 const struct pci_device_id *pci_id) 333 { 334 static int dev; 335 struct snd_card *card; 336 struct aw2 *chip; 337 int err; 338 339 /* (1) Continue if device is not enabled, else inc dev */ 340 if (dev >= SNDRV_CARDS) 341 return -ENODEV; 342 if (!enable[dev]) { 343 dev++; 344 return -ENOENT; 345 } 346 347 /* (2) Create card instance */ 348 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 349 0, &card); 350 if (err < 0) 351 return err; 352 353 /* (3) Create main component */ 354 err = snd_aw2_create(card, pci, &chip); 355 if (err < 0) { 356 snd_card_free(card); 357 return err; 358 } 359 360 /* initialize mutex */ 361 mutex_init(&chip->mtx); 362 /* init spinlock */ 363 spin_lock_init(&chip->reg_lock); 364 /* (4) Define driver ID and name string */ 365 strcpy(card->driver, "aw2"); 366 strcpy(card->shortname, "Audiowerk2"); 367 368 sprintf(card->longname, "%s with SAA7146 irq %i", 369 card->shortname, chip->irq); 370 371 /* (5) Create other components */ 372 snd_aw2_new_pcm(chip); 373 374 /* (6) Register card instance */ 375 err = snd_card_register(card); 376 if (err < 0) { 377 snd_card_free(card); 378 return err; 379 } 380 381 /* (7) Set PCI driver data */ 382 pci_set_drvdata(pci, card); 383 384 dev++; 385 return 0; 386 } 387 388 /* destructor */ 389 static void snd_aw2_remove(struct pci_dev *pci) 390 { 391 snd_card_free(pci_get_drvdata(pci)); 392 } 393 394 /* open callback */ 395 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream) 396 { 397 struct snd_pcm_runtime *runtime = substream->runtime; 398 399 dev_dbg(substream->pcm->card->dev, "Playback_open\n"); 400 runtime->hw = snd_aw2_playback_hw; 401 return 0; 402 } 403 404 /* close callback */ 405 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream) 406 { 407 return 0; 408 409 } 410 411 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream) 412 { 413 struct snd_pcm_runtime *runtime = substream->runtime; 414 415 dev_dbg(substream->pcm->card->dev, "Capture_open\n"); 416 runtime->hw = snd_aw2_capture_hw; 417 return 0; 418 } 419 420 /* close callback */ 421 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream) 422 { 423 /* TODO: something to do ? */ 424 return 0; 425 } 426 427 /* hw_params callback */ 428 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream, 429 struct snd_pcm_hw_params *hw_params) 430 { 431 return snd_pcm_lib_malloc_pages(substream, 432 params_buffer_bytes(hw_params)); 433 } 434 435 /* hw_free callback */ 436 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream) 437 { 438 return snd_pcm_lib_free_pages(substream); 439 } 440 441 /* prepare callback for playback */ 442 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream) 443 { 444 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 445 struct aw2 *chip = pcm_device->chip; 446 struct snd_pcm_runtime *runtime = substream->runtime; 447 unsigned long period_size, buffer_size; 448 449 mutex_lock(&chip->mtx); 450 451 period_size = snd_pcm_lib_period_bytes(substream); 452 buffer_size = snd_pcm_lib_buffer_bytes(substream); 453 454 snd_aw2_saa7146_pcm_init_playback(&chip->saa7146, 455 pcm_device->stream_number, 456 runtime->dma_addr, period_size, 457 buffer_size); 458 459 /* Define Interrupt callback */ 460 snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number, 461 (snd_aw2_saa7146_it_cb) 462 snd_pcm_period_elapsed, 463 (void *)substream); 464 465 mutex_unlock(&chip->mtx); 466 467 return 0; 468 } 469 470 /* prepare callback for capture */ 471 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream) 472 { 473 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 474 struct aw2 *chip = pcm_device->chip; 475 struct snd_pcm_runtime *runtime = substream->runtime; 476 unsigned long period_size, buffer_size; 477 478 mutex_lock(&chip->mtx); 479 480 period_size = snd_pcm_lib_period_bytes(substream); 481 buffer_size = snd_pcm_lib_buffer_bytes(substream); 482 483 snd_aw2_saa7146_pcm_init_capture(&chip->saa7146, 484 pcm_device->stream_number, 485 runtime->dma_addr, period_size, 486 buffer_size); 487 488 /* Define Interrupt callback */ 489 snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number, 490 (snd_aw2_saa7146_it_cb) 491 snd_pcm_period_elapsed, 492 (void *)substream); 493 494 mutex_unlock(&chip->mtx); 495 496 return 0; 497 } 498 499 /* playback trigger callback */ 500 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream, 501 int cmd) 502 { 503 int status = 0; 504 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 505 struct aw2 *chip = pcm_device->chip; 506 spin_lock(&chip->reg_lock); 507 switch (cmd) { 508 case SNDRV_PCM_TRIGGER_START: 509 snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146, 510 pcm_device-> 511 stream_number); 512 break; 513 case SNDRV_PCM_TRIGGER_STOP: 514 snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146, 515 pcm_device-> 516 stream_number); 517 break; 518 default: 519 status = -EINVAL; 520 } 521 spin_unlock(&chip->reg_lock); 522 return status; 523 } 524 525 /* capture trigger callback */ 526 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream, 527 int cmd) 528 { 529 int status = 0; 530 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 531 struct aw2 *chip = pcm_device->chip; 532 spin_lock(&chip->reg_lock); 533 switch (cmd) { 534 case SNDRV_PCM_TRIGGER_START: 535 snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146, 536 pcm_device-> 537 stream_number); 538 break; 539 case SNDRV_PCM_TRIGGER_STOP: 540 snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146, 541 pcm_device-> 542 stream_number); 543 break; 544 default: 545 status = -EINVAL; 546 } 547 spin_unlock(&chip->reg_lock); 548 return status; 549 } 550 551 /* playback pointer callback */ 552 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream 553 *substream) 554 { 555 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 556 struct aw2 *chip = pcm_device->chip; 557 unsigned int current_ptr; 558 559 /* get the current hardware pointer */ 560 struct snd_pcm_runtime *runtime = substream->runtime; 561 current_ptr = 562 snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146, 563 pcm_device->stream_number, 564 runtime->dma_area, 565 runtime->buffer_size); 566 567 return bytes_to_frames(substream->runtime, current_ptr); 568 } 569 570 /* capture pointer callback */ 571 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream 572 *substream) 573 { 574 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 575 struct aw2 *chip = pcm_device->chip; 576 unsigned int current_ptr; 577 578 /* get the current hardware pointer */ 579 struct snd_pcm_runtime *runtime = substream->runtime; 580 current_ptr = 581 snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146, 582 pcm_device->stream_number, 583 runtime->dma_area, 584 runtime->buffer_size); 585 586 return bytes_to_frames(substream->runtime, current_ptr); 587 } 588 589 /* create a pcm device */ 590 static int snd_aw2_new_pcm(struct aw2 *chip) 591 { 592 struct snd_pcm *pcm_playback_ana; 593 struct snd_pcm *pcm_playback_num; 594 struct snd_pcm *pcm_capture; 595 struct aw2_pcm_device *pcm_device; 596 int err = 0; 597 598 /* Create new Alsa PCM device */ 599 600 err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0, 601 &pcm_playback_ana); 602 if (err < 0) { 603 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err); 604 return err; 605 } 606 607 /* Creation ok */ 608 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA]; 609 610 /* Set PCM device name */ 611 strcpy(pcm_playback_ana->name, "Analog playback"); 612 /* Associate private data to PCM device */ 613 pcm_playback_ana->private_data = pcm_device; 614 /* set operators of PCM device */ 615 snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK, 616 &snd_aw2_playback_ops); 617 /* store PCM device */ 618 pcm_device->pcm = pcm_playback_ana; 619 /* give base chip pointer to our internal pcm device 620 structure */ 621 pcm_device->chip = chip; 622 /* Give stream number to PCM device */ 623 pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA; 624 625 /* pre-allocation of buffers */ 626 /* Preallocate continuous pages. */ 627 snd_pcm_lib_preallocate_pages_for_all(pcm_playback_ana, 628 SNDRV_DMA_TYPE_DEV, 629 snd_dma_pci_data(chip->pci), 630 64 * 1024, 64 * 1024); 631 632 err = snd_pcm_new(chip->card, "Audiowerk2 digital playback", 1, 1, 0, 633 &pcm_playback_num); 634 635 if (err < 0) { 636 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err); 637 return err; 638 } 639 /* Creation ok */ 640 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_DIG]; 641 642 /* Set PCM device name */ 643 strcpy(pcm_playback_num->name, "Digital playback"); 644 /* Associate private data to PCM device */ 645 pcm_playback_num->private_data = pcm_device; 646 /* set operators of PCM device */ 647 snd_pcm_set_ops(pcm_playback_num, SNDRV_PCM_STREAM_PLAYBACK, 648 &snd_aw2_playback_ops); 649 /* store PCM device */ 650 pcm_device->pcm = pcm_playback_num; 651 /* give base chip pointer to our internal pcm device 652 structure */ 653 pcm_device->chip = chip; 654 /* Give stream number to PCM device */ 655 pcm_device->stream_number = NUM_STREAM_PLAYBACK_DIG; 656 657 /* pre-allocation of buffers */ 658 /* Preallocate continuous pages. */ 659 snd_pcm_lib_preallocate_pages_for_all(pcm_playback_num, 660 SNDRV_DMA_TYPE_DEV, 661 snd_dma_pci_data(chip->pci), 662 64 * 1024, 64 * 1024); 663 664 err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1, 665 &pcm_capture); 666 667 if (err < 0) { 668 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err); 669 return err; 670 } 671 672 /* Creation ok */ 673 pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA]; 674 675 /* Set PCM device name */ 676 strcpy(pcm_capture->name, "Capture"); 677 /* Associate private data to PCM device */ 678 pcm_capture->private_data = pcm_device; 679 /* set operators of PCM device */ 680 snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE, 681 &snd_aw2_capture_ops); 682 /* store PCM device */ 683 pcm_device->pcm = pcm_capture; 684 /* give base chip pointer to our internal pcm device 685 structure */ 686 pcm_device->chip = chip; 687 /* Give stream number to PCM device */ 688 pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA; 689 690 /* pre-allocation of buffers */ 691 /* Preallocate continuous pages. */ 692 snd_pcm_lib_preallocate_pages_for_all(pcm_capture, 693 SNDRV_DMA_TYPE_DEV, 694 snd_dma_pci_data(chip->pci), 695 64 * 1024, 64 * 1024); 696 697 /* Create control */ 698 err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip)); 699 if (err < 0) { 700 dev_err(chip->card->dev, "snd_ctl_add error (0x%X)\n", err); 701 return err; 702 } 703 704 return 0; 705 } 706 707 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol, 708 struct snd_ctl_elem_info *uinfo) 709 { 710 static const char * const texts[2] = { 711 "Analog", "Digital" 712 }; 713 return snd_ctl_enum_info(uinfo, 1, 2, texts); 714 } 715 716 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol, 717 struct snd_ctl_elem_value 718 *ucontrol) 719 { 720 struct aw2 *chip = snd_kcontrol_chip(kcontrol); 721 if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146)) 722 ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL; 723 else 724 ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG; 725 return 0; 726 } 727 728 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol, 729 struct snd_ctl_elem_value 730 *ucontrol) 731 { 732 struct aw2 *chip = snd_kcontrol_chip(kcontrol); 733 int changed = 0; 734 int is_disgital = 735 snd_aw2_saa7146_is_using_digital_input(&chip->saa7146); 736 737 if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL) 738 && !is_disgital) 739 || ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG) 740 && is_disgital)) { 741 snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital); 742 changed = 1; 743 } 744 return changed; 745 } 746