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 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 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 DEFINE_PCI_DEVICE_TABLE(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 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 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 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 if (chip->iobase_virt) 233 iounmap(chip->iobase_virt); 234 235 pci_release_regions(chip->pci); 236 /* disable the PCI entry */ 237 pci_disable_device(chip->pci); 238 /* release the data */ 239 kfree(chip); 240 241 return 0; 242 } 243 244 /* chip-specific constructor */ 245 static int snd_aw2_create(struct snd_card *card, 246 struct pci_dev *pci, struct aw2 **rchip) 247 { 248 struct aw2 *chip; 249 int err; 250 static struct snd_device_ops ops = { 251 .dev_free = snd_aw2_dev_free, 252 }; 253 254 *rchip = NULL; 255 256 /* initialize the PCI entry */ 257 err = pci_enable_device(pci); 258 if (err < 0) 259 return err; 260 pci_set_master(pci); 261 262 /* check PCI availability (32bit DMA) */ 263 if ((pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) || 264 (pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0)) { 265 dev_err(card->dev, "Impossible to set 32bit mask DMA\n"); 266 pci_disable_device(pci); 267 return -ENXIO; 268 } 269 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 270 if (chip == NULL) { 271 pci_disable_device(pci); 272 return -ENOMEM; 273 } 274 275 /* initialize the stuff */ 276 chip->card = card; 277 chip->pci = pci; 278 chip->irq = -1; 279 280 /* (1) PCI resource allocation */ 281 err = pci_request_regions(pci, "Audiowerk2"); 282 if (err < 0) { 283 pci_disable_device(pci); 284 kfree(chip); 285 return err; 286 } 287 chip->iobase_phys = pci_resource_start(pci, 0); 288 chip->iobase_virt = 289 ioremap_nocache(chip->iobase_phys, 290 pci_resource_len(pci, 0)); 291 292 if (chip->iobase_virt == NULL) { 293 dev_err(card->dev, "unable to remap memory region"); 294 pci_release_regions(pci); 295 pci_disable_device(pci); 296 kfree(chip); 297 return -ENOMEM; 298 } 299 300 /* (2) initialization of the chip hardware */ 301 snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt); 302 303 if (request_irq(pci->irq, snd_aw2_saa7146_interrupt, 304 IRQF_SHARED, KBUILD_MODNAME, chip)) { 305 dev_err(card->dev, "Cannot grab irq %d\n", pci->irq); 306 307 iounmap(chip->iobase_virt); 308 pci_release_regions(chip->pci); 309 pci_disable_device(chip->pci); 310 kfree(chip); 311 return -EBUSY; 312 } 313 chip->irq = pci->irq; 314 315 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 316 if (err < 0) { 317 free_irq(chip->irq, (void *)chip); 318 iounmap(chip->iobase_virt); 319 pci_release_regions(chip->pci); 320 pci_disable_device(chip->pci); 321 kfree(chip); 322 return err; 323 } 324 325 *rchip = chip; 326 327 dev_info(card->dev, 328 "Audiowerk 2 sound card (saa7146 chipset) detected and managed\n"); 329 return 0; 330 } 331 332 /* constructor */ 333 static int snd_aw2_probe(struct pci_dev *pci, 334 const struct pci_device_id *pci_id) 335 { 336 static int dev; 337 struct snd_card *card; 338 struct aw2 *chip; 339 int err; 340 341 /* (1) Continue if device is not enabled, else inc dev */ 342 if (dev >= SNDRV_CARDS) 343 return -ENODEV; 344 if (!enable[dev]) { 345 dev++; 346 return -ENOENT; 347 } 348 349 /* (2) Create card instance */ 350 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 351 0, &card); 352 if (err < 0) 353 return err; 354 355 /* (3) Create main component */ 356 err = snd_aw2_create(card, pci, &chip); 357 if (err < 0) { 358 snd_card_free(card); 359 return err; 360 } 361 362 /* initialize mutex */ 363 mutex_init(&chip->mtx); 364 /* init spinlock */ 365 spin_lock_init(&chip->reg_lock); 366 /* (4) Define driver ID and name string */ 367 strcpy(card->driver, "aw2"); 368 strcpy(card->shortname, "Audiowerk2"); 369 370 sprintf(card->longname, "%s with SAA7146 irq %i", 371 card->shortname, chip->irq); 372 373 /* (5) Create other components */ 374 snd_aw2_new_pcm(chip); 375 376 /* (6) Register card instance */ 377 err = snd_card_register(card); 378 if (err < 0) { 379 snd_card_free(card); 380 return err; 381 } 382 383 /* (7) Set PCI driver data */ 384 pci_set_drvdata(pci, card); 385 386 dev++; 387 return 0; 388 } 389 390 /* destructor */ 391 static void snd_aw2_remove(struct pci_dev *pci) 392 { 393 snd_card_free(pci_get_drvdata(pci)); 394 } 395 396 /* open callback */ 397 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream) 398 { 399 struct snd_pcm_runtime *runtime = substream->runtime; 400 401 dev_dbg(substream->pcm->card->dev, "Playback_open\n"); 402 runtime->hw = snd_aw2_playback_hw; 403 return 0; 404 } 405 406 /* close callback */ 407 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream) 408 { 409 return 0; 410 411 } 412 413 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream) 414 { 415 struct snd_pcm_runtime *runtime = substream->runtime; 416 417 dev_dbg(substream->pcm->card->dev, "Capture_open\n"); 418 runtime->hw = snd_aw2_capture_hw; 419 return 0; 420 } 421 422 /* close callback */ 423 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream) 424 { 425 /* TODO: something to do ? */ 426 return 0; 427 } 428 429 /* hw_params callback */ 430 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream, 431 struct snd_pcm_hw_params *hw_params) 432 { 433 return snd_pcm_lib_malloc_pages(substream, 434 params_buffer_bytes(hw_params)); 435 } 436 437 /* hw_free callback */ 438 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream) 439 { 440 return snd_pcm_lib_free_pages(substream); 441 } 442 443 /* prepare callback for playback */ 444 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream) 445 { 446 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 447 struct aw2 *chip = pcm_device->chip; 448 struct snd_pcm_runtime *runtime = substream->runtime; 449 unsigned long period_size, buffer_size; 450 451 mutex_lock(&chip->mtx); 452 453 period_size = snd_pcm_lib_period_bytes(substream); 454 buffer_size = snd_pcm_lib_buffer_bytes(substream); 455 456 snd_aw2_saa7146_pcm_init_playback(&chip->saa7146, 457 pcm_device->stream_number, 458 runtime->dma_addr, period_size, 459 buffer_size); 460 461 /* Define Interrupt callback */ 462 snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number, 463 (snd_aw2_saa7146_it_cb) 464 snd_pcm_period_elapsed, 465 (void *)substream); 466 467 mutex_unlock(&chip->mtx); 468 469 return 0; 470 } 471 472 /* prepare callback for capture */ 473 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream) 474 { 475 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 476 struct aw2 *chip = pcm_device->chip; 477 struct snd_pcm_runtime *runtime = substream->runtime; 478 unsigned long period_size, buffer_size; 479 480 mutex_lock(&chip->mtx); 481 482 period_size = snd_pcm_lib_period_bytes(substream); 483 buffer_size = snd_pcm_lib_buffer_bytes(substream); 484 485 snd_aw2_saa7146_pcm_init_capture(&chip->saa7146, 486 pcm_device->stream_number, 487 runtime->dma_addr, period_size, 488 buffer_size); 489 490 /* Define Interrupt callback */ 491 snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number, 492 (snd_aw2_saa7146_it_cb) 493 snd_pcm_period_elapsed, 494 (void *)substream); 495 496 mutex_unlock(&chip->mtx); 497 498 return 0; 499 } 500 501 /* playback trigger callback */ 502 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream, 503 int cmd) 504 { 505 int status = 0; 506 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 507 struct aw2 *chip = pcm_device->chip; 508 spin_lock(&chip->reg_lock); 509 switch (cmd) { 510 case SNDRV_PCM_TRIGGER_START: 511 snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146, 512 pcm_device-> 513 stream_number); 514 break; 515 case SNDRV_PCM_TRIGGER_STOP: 516 snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146, 517 pcm_device-> 518 stream_number); 519 break; 520 default: 521 status = -EINVAL; 522 } 523 spin_unlock(&chip->reg_lock); 524 return status; 525 } 526 527 /* capture trigger callback */ 528 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream, 529 int cmd) 530 { 531 int status = 0; 532 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 533 struct aw2 *chip = pcm_device->chip; 534 spin_lock(&chip->reg_lock); 535 switch (cmd) { 536 case SNDRV_PCM_TRIGGER_START: 537 snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146, 538 pcm_device-> 539 stream_number); 540 break; 541 case SNDRV_PCM_TRIGGER_STOP: 542 snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146, 543 pcm_device-> 544 stream_number); 545 break; 546 default: 547 status = -EINVAL; 548 } 549 spin_unlock(&chip->reg_lock); 550 return status; 551 } 552 553 /* playback pointer callback */ 554 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream 555 *substream) 556 { 557 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 558 struct aw2 *chip = pcm_device->chip; 559 unsigned int current_ptr; 560 561 /* get the current hardware pointer */ 562 struct snd_pcm_runtime *runtime = substream->runtime; 563 current_ptr = 564 snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146, 565 pcm_device->stream_number, 566 runtime->dma_area, 567 runtime->buffer_size); 568 569 return bytes_to_frames(substream->runtime, current_ptr); 570 } 571 572 /* capture pointer callback */ 573 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream 574 *substream) 575 { 576 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 577 struct aw2 *chip = pcm_device->chip; 578 unsigned int current_ptr; 579 580 /* get the current hardware pointer */ 581 struct snd_pcm_runtime *runtime = substream->runtime; 582 current_ptr = 583 snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146, 584 pcm_device->stream_number, 585 runtime->dma_area, 586 runtime->buffer_size); 587 588 return bytes_to_frames(substream->runtime, current_ptr); 589 } 590 591 /* create a pcm device */ 592 static int snd_aw2_new_pcm(struct aw2 *chip) 593 { 594 struct snd_pcm *pcm_playback_ana; 595 struct snd_pcm *pcm_playback_num; 596 struct snd_pcm *pcm_capture; 597 struct aw2_pcm_device *pcm_device; 598 int err = 0; 599 600 /* Create new Alsa PCM device */ 601 602 err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0, 603 &pcm_playback_ana); 604 if (err < 0) { 605 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err); 606 return err; 607 } 608 609 /* Creation ok */ 610 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA]; 611 612 /* Set PCM device name */ 613 strcpy(pcm_playback_ana->name, "Analog playback"); 614 /* Associate private data to PCM device */ 615 pcm_playback_ana->private_data = pcm_device; 616 /* set operators of PCM device */ 617 snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK, 618 &snd_aw2_playback_ops); 619 /* store PCM device */ 620 pcm_device->pcm = pcm_playback_ana; 621 /* give base chip pointer to our internal pcm device 622 structure */ 623 pcm_device->chip = chip; 624 /* Give stream number to PCM device */ 625 pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA; 626 627 /* pre-allocation of buffers */ 628 /* Preallocate continuous pages. */ 629 err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_ana, 630 SNDRV_DMA_TYPE_DEV, 631 snd_dma_pci_data 632 (chip->pci), 633 64 * 1024, 64 * 1024); 634 if (err) 635 dev_err(chip->card->dev, 636 "snd_pcm_lib_preallocate_pages_for_all error (0x%X)\n", 637 err); 638 639 err = snd_pcm_new(chip->card, "Audiowerk2 digital playback", 1, 1, 0, 640 &pcm_playback_num); 641 642 if (err < 0) { 643 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err); 644 return err; 645 } 646 /* Creation ok */ 647 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_DIG]; 648 649 /* Set PCM device name */ 650 strcpy(pcm_playback_num->name, "Digital playback"); 651 /* Associate private data to PCM device */ 652 pcm_playback_num->private_data = pcm_device; 653 /* set operators of PCM device */ 654 snd_pcm_set_ops(pcm_playback_num, SNDRV_PCM_STREAM_PLAYBACK, 655 &snd_aw2_playback_ops); 656 /* store PCM device */ 657 pcm_device->pcm = pcm_playback_num; 658 /* give base chip pointer to our internal pcm device 659 structure */ 660 pcm_device->chip = chip; 661 /* Give stream number to PCM device */ 662 pcm_device->stream_number = NUM_STREAM_PLAYBACK_DIG; 663 664 /* pre-allocation of buffers */ 665 /* Preallocate continuous pages. */ 666 err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_num, 667 SNDRV_DMA_TYPE_DEV, 668 snd_dma_pci_data 669 (chip->pci), 670 64 * 1024, 64 * 1024); 671 if (err) 672 dev_err(chip->card->dev, 673 "snd_pcm_lib_preallocate_pages_for_all error (0x%X)\n", 674 err); 675 676 err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1, 677 &pcm_capture); 678 679 if (err < 0) { 680 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err); 681 return err; 682 } 683 684 /* Creation ok */ 685 pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA]; 686 687 /* Set PCM device name */ 688 strcpy(pcm_capture->name, "Capture"); 689 /* Associate private data to PCM device */ 690 pcm_capture->private_data = pcm_device; 691 /* set operators of PCM device */ 692 snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE, 693 &snd_aw2_capture_ops); 694 /* store PCM device */ 695 pcm_device->pcm = pcm_capture; 696 /* give base chip pointer to our internal pcm device 697 structure */ 698 pcm_device->chip = chip; 699 /* Give stream number to PCM device */ 700 pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA; 701 702 /* pre-allocation of buffers */ 703 /* Preallocate continuous pages. */ 704 err = snd_pcm_lib_preallocate_pages_for_all(pcm_capture, 705 SNDRV_DMA_TYPE_DEV, 706 snd_dma_pci_data 707 (chip->pci), 708 64 * 1024, 64 * 1024); 709 if (err) 710 dev_err(chip->card->dev, 711 "snd_pcm_lib_preallocate_pages_for_all error (0x%X)\n", 712 err); 713 714 715 /* Create control */ 716 err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip)); 717 if (err < 0) { 718 dev_err(chip->card->dev, "snd_ctl_add error (0x%X)\n", err); 719 return err; 720 } 721 722 return 0; 723 } 724 725 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol, 726 struct snd_ctl_elem_info *uinfo) 727 { 728 static char *texts[2] = { 729 "Analog", "Digital" 730 }; 731 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 732 uinfo->count = 1; 733 uinfo->value.enumerated.items = 2; 734 if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) { 735 uinfo->value.enumerated.item = 736 uinfo->value.enumerated.items - 1; 737 } 738 strcpy(uinfo->value.enumerated.name, 739 texts[uinfo->value.enumerated.item]); 740 return 0; 741 } 742 743 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol, 744 struct snd_ctl_elem_value 745 *ucontrol) 746 { 747 struct aw2 *chip = snd_kcontrol_chip(kcontrol); 748 if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146)) 749 ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL; 750 else 751 ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG; 752 return 0; 753 } 754 755 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol, 756 struct snd_ctl_elem_value 757 *ucontrol) 758 { 759 struct aw2 *chip = snd_kcontrol_chip(kcontrol); 760 int changed = 0; 761 int is_disgital = 762 snd_aw2_saa7146_is_using_digital_input(&chip->saa7146); 763 764 if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL) 765 && !is_disgital) 766 || ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG) 767 && is_disgital)) { 768 snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital); 769 changed = 1; 770 } 771 return changed; 772 } 773