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 printk(KERN_ERR "aw2: 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 printk(KERN_ERR "aw2: 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 printk(KERN_ERR "aw2: 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 snd_card_set_dev(card, &pci->dev); 326 *rchip = chip; 327 328 printk(KERN_INFO 329 "Audiowerk 2 sound card (saa7146 chipset) detected and " 330 "managed\n"); 331 return 0; 332 } 333 334 /* constructor */ 335 static int snd_aw2_probe(struct pci_dev *pci, 336 const struct pci_device_id *pci_id) 337 { 338 static int dev; 339 struct snd_card *card; 340 struct aw2 *chip; 341 int err; 342 343 /* (1) Continue if device is not enabled, else inc dev */ 344 if (dev >= SNDRV_CARDS) 345 return -ENODEV; 346 if (!enable[dev]) { 347 dev++; 348 return -ENOENT; 349 } 350 351 /* (2) Create card instance */ 352 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 353 if (err < 0) 354 return err; 355 356 /* (3) Create main component */ 357 err = snd_aw2_create(card, pci, &chip); 358 if (err < 0) { 359 snd_card_free(card); 360 return err; 361 } 362 363 /* initialize mutex */ 364 mutex_init(&chip->mtx); 365 /* init spinlock */ 366 spin_lock_init(&chip->reg_lock); 367 /* (4) Define driver ID and name string */ 368 strcpy(card->driver, "aw2"); 369 strcpy(card->shortname, "Audiowerk2"); 370 371 sprintf(card->longname, "%s with SAA7146 irq %i", 372 card->shortname, chip->irq); 373 374 /* (5) Create other components */ 375 snd_aw2_new_pcm(chip); 376 377 /* (6) Register card instance */ 378 err = snd_card_register(card); 379 if (err < 0) { 380 snd_card_free(card); 381 return err; 382 } 383 384 /* (7) Set PCI driver data */ 385 pci_set_drvdata(pci, card); 386 387 dev++; 388 return 0; 389 } 390 391 /* destructor */ 392 static void snd_aw2_remove(struct pci_dev *pci) 393 { 394 snd_card_free(pci_get_drvdata(pci)); 395 } 396 397 /* open callback */ 398 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream) 399 { 400 struct snd_pcm_runtime *runtime = substream->runtime; 401 402 snd_printdd(KERN_DEBUG "aw2: Playback_open\n"); 403 runtime->hw = snd_aw2_playback_hw; 404 return 0; 405 } 406 407 /* close callback */ 408 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream) 409 { 410 return 0; 411 412 } 413 414 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream) 415 { 416 struct snd_pcm_runtime *runtime = substream->runtime; 417 418 snd_printdd(KERN_DEBUG "aw2: Capture_open\n"); 419 runtime->hw = snd_aw2_capture_hw; 420 return 0; 421 } 422 423 /* close callback */ 424 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream) 425 { 426 /* TODO: something to do ? */ 427 return 0; 428 } 429 430 /* hw_params callback */ 431 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream, 432 struct snd_pcm_hw_params *hw_params) 433 { 434 return snd_pcm_lib_malloc_pages(substream, 435 params_buffer_bytes(hw_params)); 436 } 437 438 /* hw_free callback */ 439 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream) 440 { 441 return snd_pcm_lib_free_pages(substream); 442 } 443 444 /* prepare callback for playback */ 445 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream) 446 { 447 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 448 struct aw2 *chip = pcm_device->chip; 449 struct snd_pcm_runtime *runtime = substream->runtime; 450 unsigned long period_size, buffer_size; 451 452 mutex_lock(&chip->mtx); 453 454 period_size = snd_pcm_lib_period_bytes(substream); 455 buffer_size = snd_pcm_lib_buffer_bytes(substream); 456 457 snd_aw2_saa7146_pcm_init_playback(&chip->saa7146, 458 pcm_device->stream_number, 459 runtime->dma_addr, period_size, 460 buffer_size); 461 462 /* Define Interrupt callback */ 463 snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number, 464 (snd_aw2_saa7146_it_cb) 465 snd_pcm_period_elapsed, 466 (void *)substream); 467 468 mutex_unlock(&chip->mtx); 469 470 return 0; 471 } 472 473 /* prepare callback for capture */ 474 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream) 475 { 476 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 477 struct aw2 *chip = pcm_device->chip; 478 struct snd_pcm_runtime *runtime = substream->runtime; 479 unsigned long period_size, buffer_size; 480 481 mutex_lock(&chip->mtx); 482 483 period_size = snd_pcm_lib_period_bytes(substream); 484 buffer_size = snd_pcm_lib_buffer_bytes(substream); 485 486 snd_aw2_saa7146_pcm_init_capture(&chip->saa7146, 487 pcm_device->stream_number, 488 runtime->dma_addr, period_size, 489 buffer_size); 490 491 /* Define Interrupt callback */ 492 snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number, 493 (snd_aw2_saa7146_it_cb) 494 snd_pcm_period_elapsed, 495 (void *)substream); 496 497 mutex_unlock(&chip->mtx); 498 499 return 0; 500 } 501 502 /* playback trigger callback */ 503 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream, 504 int cmd) 505 { 506 int status = 0; 507 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 508 struct aw2 *chip = pcm_device->chip; 509 spin_lock(&chip->reg_lock); 510 switch (cmd) { 511 case SNDRV_PCM_TRIGGER_START: 512 snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146, 513 pcm_device-> 514 stream_number); 515 break; 516 case SNDRV_PCM_TRIGGER_STOP: 517 snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146, 518 pcm_device-> 519 stream_number); 520 break; 521 default: 522 status = -EINVAL; 523 } 524 spin_unlock(&chip->reg_lock); 525 return status; 526 } 527 528 /* capture trigger callback */ 529 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream, 530 int cmd) 531 { 532 int status = 0; 533 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 534 struct aw2 *chip = pcm_device->chip; 535 spin_lock(&chip->reg_lock); 536 switch (cmd) { 537 case SNDRV_PCM_TRIGGER_START: 538 snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146, 539 pcm_device-> 540 stream_number); 541 break; 542 case SNDRV_PCM_TRIGGER_STOP: 543 snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146, 544 pcm_device-> 545 stream_number); 546 break; 547 default: 548 status = -EINVAL; 549 } 550 spin_unlock(&chip->reg_lock); 551 return status; 552 } 553 554 /* playback pointer callback */ 555 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream 556 *substream) 557 { 558 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 559 struct aw2 *chip = pcm_device->chip; 560 unsigned int current_ptr; 561 562 /* get the current hardware pointer */ 563 struct snd_pcm_runtime *runtime = substream->runtime; 564 current_ptr = 565 snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146, 566 pcm_device->stream_number, 567 runtime->dma_area, 568 runtime->buffer_size); 569 570 return bytes_to_frames(substream->runtime, current_ptr); 571 } 572 573 /* capture pointer callback */ 574 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream 575 *substream) 576 { 577 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream); 578 struct aw2 *chip = pcm_device->chip; 579 unsigned int current_ptr; 580 581 /* get the current hardware pointer */ 582 struct snd_pcm_runtime *runtime = substream->runtime; 583 current_ptr = 584 snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146, 585 pcm_device->stream_number, 586 runtime->dma_area, 587 runtime->buffer_size); 588 589 return bytes_to_frames(substream->runtime, current_ptr); 590 } 591 592 /* create a pcm device */ 593 static int snd_aw2_new_pcm(struct aw2 *chip) 594 { 595 struct snd_pcm *pcm_playback_ana; 596 struct snd_pcm *pcm_playback_num; 597 struct snd_pcm *pcm_capture; 598 struct aw2_pcm_device *pcm_device; 599 int err = 0; 600 601 /* Create new Alsa PCM device */ 602 603 err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0, 604 &pcm_playback_ana); 605 if (err < 0) { 606 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err); 607 return err; 608 } 609 610 /* Creation ok */ 611 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA]; 612 613 /* Set PCM device name */ 614 strcpy(pcm_playback_ana->name, "Analog playback"); 615 /* Associate private data to PCM device */ 616 pcm_playback_ana->private_data = pcm_device; 617 /* set operators of PCM device */ 618 snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK, 619 &snd_aw2_playback_ops); 620 /* store PCM device */ 621 pcm_device->pcm = pcm_playback_ana; 622 /* give base chip pointer to our internal pcm device 623 structure */ 624 pcm_device->chip = chip; 625 /* Give stream number to PCM device */ 626 pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA; 627 628 /* pre-allocation of buffers */ 629 /* Preallocate continuous pages. */ 630 err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_ana, 631 SNDRV_DMA_TYPE_DEV, 632 snd_dma_pci_data 633 (chip->pci), 634 64 * 1024, 64 * 1024); 635 if (err) 636 printk(KERN_ERR "aw2: snd_pcm_lib_preallocate_pages_for_all " 637 "error (0x%X)\n", 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 printk(KERN_ERR "aw2: 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 printk(KERN_ERR 673 "aw2: snd_pcm_lib_preallocate_pages_for_all error " 674 "(0x%X)\n", err); 675 676 677 678 err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1, 679 &pcm_capture); 680 681 if (err < 0) { 682 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err); 683 return err; 684 } 685 686 /* Creation ok */ 687 pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA]; 688 689 /* Set PCM device name */ 690 strcpy(pcm_capture->name, "Capture"); 691 /* Associate private data to PCM device */ 692 pcm_capture->private_data = pcm_device; 693 /* set operators of PCM device */ 694 snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE, 695 &snd_aw2_capture_ops); 696 /* store PCM device */ 697 pcm_device->pcm = pcm_capture; 698 /* give base chip pointer to our internal pcm device 699 structure */ 700 pcm_device->chip = chip; 701 /* Give stream number to PCM device */ 702 pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA; 703 704 /* pre-allocation of buffers */ 705 /* Preallocate continuous pages. */ 706 err = snd_pcm_lib_preallocate_pages_for_all(pcm_capture, 707 SNDRV_DMA_TYPE_DEV, 708 snd_dma_pci_data 709 (chip->pci), 710 64 * 1024, 64 * 1024); 711 if (err) 712 printk(KERN_ERR 713 "aw2: snd_pcm_lib_preallocate_pages_for_all error " 714 "(0x%X)\n", err); 715 716 717 /* Create control */ 718 err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip)); 719 if (err < 0) { 720 printk(KERN_ERR "aw2: snd_ctl_add error (0x%X)\n", err); 721 return err; 722 } 723 724 return 0; 725 } 726 727 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol, 728 struct snd_ctl_elem_info *uinfo) 729 { 730 static char *texts[2] = { 731 "Analog", "Digital" 732 }; 733 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 734 uinfo->count = 1; 735 uinfo->value.enumerated.items = 2; 736 if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) { 737 uinfo->value.enumerated.item = 738 uinfo->value.enumerated.items - 1; 739 } 740 strcpy(uinfo->value.enumerated.name, 741 texts[uinfo->value.enumerated.item]); 742 return 0; 743 } 744 745 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol, 746 struct snd_ctl_elem_value 747 *ucontrol) 748 { 749 struct aw2 *chip = snd_kcontrol_chip(kcontrol); 750 if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146)) 751 ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL; 752 else 753 ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG; 754 return 0; 755 } 756 757 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol, 758 struct snd_ctl_elem_value 759 *ucontrol) 760 { 761 struct aw2 *chip = snd_kcontrol_chip(kcontrol); 762 int changed = 0; 763 int is_disgital = 764 snd_aw2_saa7146_is_using_digital_input(&chip->saa7146); 765 766 if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL) 767 && !is_disgital) 768 || ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG) 769 && is_disgital)) { 770 snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital); 771 changed = 1; 772 } 773 return changed; 774 } 775