git.oblomov.eu Git - linux-2.6/blob - sound/pci/aw2/aw2-alsa.c

   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/slab.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/delay.h>
  28 #include <asm/io.h>
  29 #include <sound/core.h>
  30 #include <sound/initval.h>
  31 #include <sound/pcm.h>
  32 #include <sound/pcm_params.h>
  33 #include <sound/control.h>
  34
  35 #include "saa7146.h"
  36 #include "aw2-saa7146.h"
  37
  38 MODULE_LICENSE("GPL");
  39 MODULE_AUTHOR("Cedric Bregardis <cedric.bregardis@free.fr>, "
  40               "Jean-Christian Hassler <jhassler@free.fr>");
  41 MODULE_DESCRIPTION("Emagic Audiowerk 2 sound driver");
  42 MODULE_LICENSE("GPL");
  43
  44 /*********************************
  45  * DEFINES
  46  ********************************/
  47 #define PCI_VENDOR_ID_SAA7146             0x1131
  48 #define PCI_DEVICE_ID_SAA7146             0x7146
  49
  50 #define CTL_ROUTE_ANALOG 0
  51 #define CTL_ROUTE_DIGITAL 1
  52
  53 /*********************************
  54  * TYPEDEFS
  55  ********************************/
  56   /* hardware definition */
  57 static struct snd_pcm_hardware snd_aw2_playback_hw = {
  58         .info = (SNDRV_PCM_INFO_MMAP |
  59                  SNDRV_PCM_INFO_INTERLEAVED |
  60                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
  61         .formats = SNDRV_PCM_FMTBIT_S16_LE,
  62         .rates = SNDRV_PCM_RATE_44100,
  63         .rate_min = 44100,
  64         .rate_max = 44100,
  65         .channels_min = 2,
  66         .channels_max = 4,
  67         .buffer_bytes_max = 32768,
  68         .period_bytes_min = 4096,
  69         .period_bytes_max = 32768,
  70         .periods_min = 1,
  71         .periods_max = 1024,
  72 };
  73
  74 static struct snd_pcm_hardware snd_aw2_capture_hw = {
  75         .info = (SNDRV_PCM_INFO_MMAP |
  76                  SNDRV_PCM_INFO_INTERLEAVED |
  77                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
  78         .formats = SNDRV_PCM_FMTBIT_S16_LE,
  79         .rates = SNDRV_PCM_RATE_44100,
  80         .rate_min = 44100,
  81         .rate_max = 44100,
  82         .channels_min = 2,
  83         .channels_max = 2,
  84         .buffer_bytes_max = 32768,
  85         .period_bytes_min = 4096,
  86         .period_bytes_max = 32768,
  87         .periods_min = 1,
  88         .periods_max = 1024,
  89 };
  90
  91 struct aw2_pcm_device {
  92         struct snd_pcm *pcm;
  93         unsigned int stream_number;
  94         struct aw2 *chip;
  95 };
  96
  97 struct aw2 {
  98         struct snd_aw2_saa7146 saa7146;
  99
 100         struct pci_dev *pci;
 101         int irq;
 102         spinlock_t reg_lock;
 103         struct mutex mtx;
 104
 105         unsigned long iobase_phys;
 106         void __iomem *iobase_virt;
 107
 108         struct snd_card *card;
 109
 110         struct aw2_pcm_device device_playback[NB_STREAM_PLAYBACK];
 111         struct aw2_pcm_device device_capture[NB_STREAM_CAPTURE];
 112 };
 113
 114 /*********************************
 115  * FUNCTION DECLARATIONS
 116  ********************************/
 117 static int __init alsa_card_aw2_init(void);
 118 static void __exit alsa_card_aw2_exit(void);
 119 static int snd_aw2_dev_free(struct snd_device *device);
 120 static int __devinit snd_aw2_create(struct snd_card *card,
 121                                     struct pci_dev *pci, struct aw2 **rchip);
 122 static int __devinit snd_aw2_probe(struct pci_dev *pci,
 123                                    const struct pci_device_id *pci_id);
 124 static void __devexit snd_aw2_remove(struct pci_dev *pci);
 125 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
 126 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream);
 127 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream);
 128 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream);
 129 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
 130                                  struct snd_pcm_hw_params *hw_params);
 131 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream);
 132 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream);
 133 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream);
 134 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
 135                                         int cmd);
 136 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
 137                                        int cmd);
 138 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
 139                                                       *substream);
 140 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
 141                                                      *substream);
 142 static int __devinit snd_aw2_new_pcm(struct aw2 *chip);
 143
 144 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
 145                                                struct snd_ctl_elem_info *uinfo);
 146 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
 147                                               struct snd_ctl_elem_value
 148                                               *ucontrol);
 149 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
 150                                               struct snd_ctl_elem_value
 151                                               *ucontrol);
 152
 153 /*********************************
 154  * VARIABLES
 155  ********************************/
 156 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 157 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 158 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 159
 160 static struct pci_device_id snd_aw2_ids[] = {
 161         {PCI_VENDOR_ID_SAA7146, PCI_DEVICE_ID_SAA7146, PCI_ANY_ID, PCI_ANY_ID,
 162          0, 0, 0},
 163         {0}
 164 };
 165
 166 MODULE_DEVICE_TABLE(pci, snd_aw2_ids);
 167
 168 /* pci_driver definition */
 169 static struct pci_driver driver = {
 170         .name = "Emagic Audiowerk 2",
 171         .id_table = snd_aw2_ids,
 172         .probe = snd_aw2_probe,
 173         .remove = __devexit_p(snd_aw2_remove),
 174 };
 175
 176 /* operators for playback PCM alsa interface */
 177 static struct snd_pcm_ops snd_aw2_playback_ops = {
 178         .open = snd_aw2_pcm_playback_open,
 179         .close = snd_aw2_pcm_playback_close,
 180         .ioctl = snd_pcm_lib_ioctl,
 181         .hw_params = snd_aw2_pcm_hw_params,
 182         .hw_free = snd_aw2_pcm_hw_free,
 183         .prepare = snd_aw2_pcm_prepare_playback,
 184         .trigger = snd_aw2_pcm_trigger_playback,
 185         .pointer = snd_aw2_pcm_pointer_playback,
 186 };
 187
 188 /* operators for capture PCM alsa interface */
 189 static struct snd_pcm_ops snd_aw2_capture_ops = {
 190         .open = snd_aw2_pcm_capture_open,
 191         .close = snd_aw2_pcm_capture_close,
 192         .ioctl = snd_pcm_lib_ioctl,
 193         .hw_params = snd_aw2_pcm_hw_params,
 194         .hw_free = snd_aw2_pcm_hw_free,
 195         .prepare = snd_aw2_pcm_prepare_capture,
 196         .trigger = snd_aw2_pcm_trigger_capture,
 197         .pointer = snd_aw2_pcm_pointer_capture,
 198 };
 199
 200 static struct snd_kcontrol_new aw2_control __devinitdata = {
 201         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 202         .name = "PCM Capture Route",
 203         .index = 0,
 204         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 205         .private_value = 0xffff,
 206         .info = snd_aw2_control_switch_capture_info,
 207         .get = snd_aw2_control_switch_capture_get,
 208         .put = snd_aw2_control_switch_capture_put
 209 };
 210
 211 /*********************************
 212  * FUNCTION IMPLEMENTATIONS
 213  ********************************/
 214
 215 /* initialization of the module */
 216 static int __init alsa_card_aw2_init(void)
 217 {
 218         snd_printdd(KERN_DEBUG "aw2: Load aw2 module\n");
 219         return pci_register_driver(&driver);
 220 }
 221
 222 /* clean up the module */
 223 static void __exit alsa_card_aw2_exit(void)
 224 {
 225         snd_printdd(KERN_DEBUG "aw2: Unload aw2 module\n");
 226         pci_unregister_driver(&driver);
 227 }
 228
 229 module_init(alsa_card_aw2_init);
 230 module_exit(alsa_card_aw2_exit);
 231
 232 /* component-destructor */
 233 static int snd_aw2_dev_free(struct snd_device *device)
 234 {
 235         struct aw2 *chip = device->device_data;
 236
 237         /* Free hardware */
 238         snd_aw2_saa7146_free(&chip->saa7146);
 239
 240         /* release the irq */
 241         if (chip->irq >= 0)
 242                 free_irq(chip->irq, (void *)chip);
 243         /* release the i/o ports & memory */
 244         if (chip->iobase_virt)
 245                 iounmap(chip->iobase_virt);
 246
 247         pci_release_regions(chip->pci);
 248         /* disable the PCI entry */
 249         pci_disable_device(chip->pci);
 250         /* release the data */
 251         kfree(chip);
 252
 253         return 0;
 254 }
 255
 256 /* chip-specific constructor */
 257 static int __devinit snd_aw2_create(struct snd_card *card,
 258                                     struct pci_dev *pci, struct aw2 **rchip)
 259 {
 260         struct aw2 *chip;
 261         int err;
 262         static struct snd_device_ops ops = {
 263                 .dev_free = snd_aw2_dev_free,
 264         };
 265
 266         *rchip = NULL;
 267
 268         /* initialize the PCI entry */
 269         err = pci_enable_device(pci);
 270         if (err < 0)
 271                 return err;
 272         pci_set_master(pci);
 273
 274         /* check PCI availability (32bit DMA) */
 275         if ((pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0) ||
 276             (pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0)) {
 277                 printk(KERN_ERR "aw2: Impossible to set 32bit mask DMA\n");
 278                 pci_disable_device(pci);
 279                 return -ENXIO;
 280         }
 281         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 282         if (chip == NULL) {
 283                 pci_disable_device(pci);
 284                 return -ENOMEM;
 285         }
 286
 287         /* initialize the stuff */
 288         chip->card = card;
 289         chip->pci = pci;
 290         chip->irq = -1;
 291
 292         /* (1) PCI resource allocation */
 293         err = pci_request_regions(pci, "Audiowerk2");
 294         if (err < 0) {
 295                 pci_disable_device(pci);
 296                 kfree(chip);
 297                 return err;
 298         }
 299         chip->iobase_phys = pci_resource_start(pci, 0);
 300         chip->iobase_virt =
 301                 ioremap_nocache(chip->iobase_phys,
 302                                 pci_resource_len(pci, 0));
 303
 304         if (chip->iobase_virt == NULL) {
 305                 printk(KERN_ERR "aw2: unable to remap memory region");
 306                 pci_release_regions(pci);
 307                 pci_disable_device(pci);
 308                 kfree(chip);
 309                 return -ENOMEM;
 310         }
 311
 312
 313         if (request_irq(pci->irq, snd_aw2_saa7146_interrupt,
 314                         IRQF_SHARED, "Audiowerk2", chip)) {
 315                 printk(KERN_ERR "aw2: Cannot grab irq %d\n", pci->irq);
 316
 317                 iounmap(chip->iobase_virt);
 318                 pci_release_regions(chip->pci);
 319                 pci_disable_device(chip->pci);
 320                 kfree(chip);
 321                 return -EBUSY;
 322         }
 323         chip->irq = pci->irq;
 324
 325         /* (2) initialization of the chip hardware */
 326         snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt);
 327         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 328         if (err < 0) {
 329                 free_irq(chip->irq, (void *)chip);
 330                 iounmap(chip->iobase_virt);
 331                 pci_release_regions(chip->pci);
 332                 pci_disable_device(chip->pci);
 333                 kfree(chip);
 334                 return err;
 335         }
 336
 337         snd_card_set_dev(card, &pci->dev);
 338         *rchip = chip;
 339
 340         printk(KERN_INFO
 341                "Audiowerk 2 sound card (saa7146 chipset) detected and "
 342                "managed\n");
 343         return 0;
 344 }
 345
 346 /* constructor */
 347 static int __devinit snd_aw2_probe(struct pci_dev *pci,
 348                                    const struct pci_device_id *pci_id)
 349 {
 350         static int dev;
 351         struct snd_card *card;
 352         struct aw2 *chip;
 353         int err;
 354
 355         /* (1) Continue if device is not enabled, else inc dev */
 356         if (dev >= SNDRV_CARDS)
 357                 return -ENODEV;
 358         if (!enable[dev]) {
 359                 dev++;
 360                 return -ENOENT;
 361         }
 362
 363         /* (2) Create card instance */
 364         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
 365         if (card == NULL)
 366                 return -ENOMEM;
 367
 368         /* (3) Create main component */
 369         err = snd_aw2_create(card, pci, &chip);
 370         if (err < 0) {
 371                 snd_card_free(card);
 372                 return err;
 373         }
 374
 375         /* initialize mutex */
 376         mutex_init(&chip->mtx);
 377         /* init spinlock */
 378         spin_lock_init(&chip->reg_lock);
 379         /* (4) Define driver ID and name string */
 380         strcpy(card->driver, "aw2");
 381         strcpy(card->shortname, "Audiowerk2");
 382
 383         sprintf(card->longname, "%s with SAA7146 irq %i",
 384                 card->shortname, chip->irq);
 385
 386         /* (5) Create other components */
 387         snd_aw2_new_pcm(chip);
 388
 389         /* (6) Register card instance */
 390         err = snd_card_register(card);
 391         if (err < 0) {
 392                 snd_card_free(card);
 393                 return err;
 394         }
 395
 396         /* (7) Set PCI driver data */
 397         pci_set_drvdata(pci, card);
 398
 399         dev++;
 400         return 0;
 401 }
 402
 403 /* destructor */
 404 static void __devexit snd_aw2_remove(struct pci_dev *pci)
 405 {
 406         snd_card_free(pci_get_drvdata(pci));
 407         pci_set_drvdata(pci, NULL);
 408 }
 409
 410 /* open callback */
 411 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream)
 412 {
 413         struct snd_pcm_runtime *runtime = substream->runtime;
 414
 415         snd_printdd(KERN_DEBUG "aw2: Playback_open \n");
 416         runtime->hw = snd_aw2_playback_hw;
 417         return 0;
 418 }
 419
 420 /* close callback */
 421 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream)
 422 {
 423         return 0;
 424
 425 }
 426
 427 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream)
 428 {
 429         struct snd_pcm_runtime *runtime = substream->runtime;
 430
 431         snd_printdd(KERN_DEBUG "aw2: Capture_open \n");
 432         runtime->hw = snd_aw2_capture_hw;
 433         return 0;
 434 }
 435
 436 /* close callback */
 437 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream)
 438 {
 439         /* TODO: something to do ? */
 440         return 0;
 441 }
 442
 443  /* hw_params callback */
 444 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
 445                                  struct snd_pcm_hw_params *hw_params)
 446 {
 447         return snd_pcm_lib_malloc_pages(substream,
 448                                         params_buffer_bytes(hw_params));
 449 }
 450
 451 /* hw_free callback */
 452 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream)
 453 {
 454         return snd_pcm_lib_free_pages(substream);
 455 }
 456
 457 /* prepare callback for playback */
 458 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream)
 459 {
 460         struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
 461         struct aw2 *chip = pcm_device->chip;
 462         struct snd_pcm_runtime *runtime = substream->runtime;
 463         unsigned long period_size, buffer_size;
 464
 465         mutex_lock(&chip->mtx);
 466
 467         period_size = snd_pcm_lib_period_bytes(substream);
 468         buffer_size = snd_pcm_lib_buffer_bytes(substream);
 469
 470         snd_aw2_saa7146_pcm_init_playback(&chip->saa7146,
 471                                           pcm_device->stream_number,
 472                                           runtime->dma_addr, period_size,
 473                                           buffer_size);
 474
 475         /* Define Interrupt callback */
 476         snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number,
 477                                                     (snd_aw2_saa7146_it_cb)
 478                                                     snd_pcm_period_elapsed,
 479                                                     (void *)substream);
 480
 481         mutex_unlock(&chip->mtx);
 482
 483         return 0;
 484 }
 485
 486 /* prepare callback for capture */
 487 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream)
 488 {
 489         struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
 490         struct aw2 *chip = pcm_device->chip;
 491         struct snd_pcm_runtime *runtime = substream->runtime;
 492         unsigned long period_size, buffer_size;
 493
 494         mutex_lock(&chip->mtx);
 495
 496         period_size = snd_pcm_lib_period_bytes(substream);
 497         buffer_size = snd_pcm_lib_buffer_bytes(substream);
 498
 499         snd_aw2_saa7146_pcm_init_capture(&chip->saa7146,
 500                                          pcm_device->stream_number,
 501                                          runtime->dma_addr, period_size,
 502                                          buffer_size);
 503
 504         /* Define Interrupt callback */
 505         snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number,
 506                                                    (snd_aw2_saa7146_it_cb)
 507                                                    snd_pcm_period_elapsed,
 508                                                    (void *)substream);
 509
 510         mutex_unlock(&chip->mtx);
 511
 512         return 0;
 513 }
 514
 515 /* playback trigger callback */
 516 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
 517                                         int cmd)
 518 {
 519         int status = 0;
 520         struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
 521         struct aw2 *chip = pcm_device->chip;
 522         spin_lock(&chip->reg_lock);
 523         switch (cmd) {
 524         case SNDRV_PCM_TRIGGER_START:
 525                 snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146,
 526                                                            pcm_device->
 527                                                            stream_number);
 528                 break;
 529         case SNDRV_PCM_TRIGGER_STOP:
 530                 snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146,
 531                                                           pcm_device->
 532                                                           stream_number);
 533                 break;
 534         default:
 535                 status = -EINVAL;
 536         }
 537         spin_unlock(&chip->reg_lock);
 538         return status;
 539 }
 540
 541 /* capture trigger callback */
 542 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
 543                                        int cmd)
 544 {
 545         int status = 0;
 546         struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
 547         struct aw2 *chip = pcm_device->chip;
 548         spin_lock(&chip->reg_lock);
 549         switch (cmd) {
 550         case SNDRV_PCM_TRIGGER_START:
 551                 snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146,
 552                                                           pcm_device->
 553                                                           stream_number);
 554                 break;
 555         case SNDRV_PCM_TRIGGER_STOP:
 556                 snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146,
 557                                                          pcm_device->
 558                                                          stream_number);
 559                 break;
 560         default:
 561                 status = -EINVAL;
 562         }
 563         spin_unlock(&chip->reg_lock);
 564         return status;
 565 }
 566
 567 /* playback pointer callback */
 568 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
 569                                                       *substream)
 570 {
 571         struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
 572         struct aw2 *chip = pcm_device->chip;
 573         unsigned int current_ptr;
 574
 575         /* get the current hardware pointer */
 576         struct snd_pcm_runtime *runtime = substream->runtime;
 577         current_ptr =
 578                 snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146,
 579                                                     pcm_device->stream_number,
 580                                                     runtime->dma_area,
 581                                                     runtime->buffer_size);
 582
 583         return bytes_to_frames(substream->runtime, current_ptr);
 584 }
 585
 586 /* capture pointer callback */
 587 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
 588                                                      *substream)
 589 {
 590         struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
 591         struct aw2 *chip = pcm_device->chip;
 592         unsigned int current_ptr;
 593
 594         /* get the current hardware pointer */
 595         struct snd_pcm_runtime *runtime = substream->runtime;
 596         current_ptr =
 597                 snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146,
 598                                                    pcm_device->stream_number,
 599                                                    runtime->dma_area,
 600                                                    runtime->buffer_size);
 601
 602         return bytes_to_frames(substream->runtime, current_ptr);
 603 }
 604
 605 /* create a pcm device */
 606 static int __devinit snd_aw2_new_pcm(struct aw2 *chip)
 607 {
 608         struct snd_pcm *pcm_playback_ana;
 609         struct snd_pcm *pcm_playback_num;
 610         struct snd_pcm *pcm_capture;
 611         struct aw2_pcm_device *pcm_device;
 612         int err = 0;
 613
 614         /* Create new Alsa PCM device */
 615
 616         err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0,
 617                           &pcm_playback_ana);
 618         if (err < 0) {
 619                 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
 620                 return err;
 621         }
 622
 623         /* Creation ok */
 624         pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA];
 625
 626         /* Set PCM device name */
 627         strcpy(pcm_playback_ana->name, "Analog playback");
 628         /* Associate private data to PCM device */
 629         pcm_playback_ana->private_data = pcm_device;
 630         /* set operators of PCM device */
 631         snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK,
 632                         &snd_aw2_playback_ops);
 633         /* store PCM device */
 634         pcm_device->pcm = pcm_playback_ana;
 635         /* give base chip pointer to our internal pcm device
 636            structure */
 637         pcm_device->chip = chip;
 638         /* Give stream number to PCM device */
 639         pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA;
 640
 641         /* pre-allocation of buffers */
 642         /* Preallocate continuous pages. */
 643         err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_ana,
 644                                                     SNDRV_DMA_TYPE_DEV,
 645                                                     snd_dma_pci_data
 646                                                     (chip->pci),
 647                                                     64 * 1024, 64 * 1024);
 648         if (err)
 649                 printk(KERN_ERR "aw2: snd_pcm_lib_preallocate_pages_for_all "
 650                        "error (0x%X)\n", err);
 651
 652         err = snd_pcm_new(chip->card, "Audiowerk2 digital playback", 1, 1, 0,
 653                           &pcm_playback_num);
 654
 655         if (err < 0) {
 656                 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
 657                 return err;
 658         }
 659         /* Creation ok */
 660         pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_DIG];
 661
 662         /* Set PCM device name */
 663         strcpy(pcm_playback_num->name, "Digital playback");
 664         /* Associate private data to PCM device */
 665         pcm_playback_num->private_data = pcm_device;
 666         /* set operators of PCM device */
 667         snd_pcm_set_ops(pcm_playback_num, SNDRV_PCM_STREAM_PLAYBACK,
 668                         &snd_aw2_playback_ops);
 669         /* store PCM device */
 670         pcm_device->pcm = pcm_playback_num;
 671         /* give base chip pointer to our internal pcm device
 672            structure */
 673         pcm_device->chip = chip;
 674         /* Give stream number to PCM device */
 675         pcm_device->stream_number = NUM_STREAM_PLAYBACK_DIG;
 676
 677         /* pre-allocation of buffers */
 678         /* Preallocate continuous pages. */
 679         err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_num,
 680                                                     SNDRV_DMA_TYPE_DEV,
 681                                                     snd_dma_pci_data
 682                                                     (chip->pci),
 683                                                     64 * 1024, 64 * 1024);
 684         if (err)
 685                 printk(KERN_ERR
 686                        "aw2: snd_pcm_lib_preallocate_pages_for_all error "
 687                        "(0x%X)\n", err);
 688
 689
 690
 691         err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1,
 692                           &pcm_capture);
 693
 694         if (err < 0) {
 695                 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
 696                 return err;
 697         }
 698
 699         /* Creation ok */
 700         pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA];
 701
 702         /* Set PCM device name */
 703         strcpy(pcm_capture->name, "Capture");
 704         /* Associate private data to PCM device */
 705         pcm_capture->private_data = pcm_device;
 706         /* set operators of PCM device */
 707         snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE,
 708                         &snd_aw2_capture_ops);
 709         /* store PCM device */
 710         pcm_device->pcm = pcm_capture;
 711         /* give base chip pointer to our internal pcm device
 712            structure */
 713         pcm_device->chip = chip;
 714         /* Give stream number to PCM device */
 715         pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA;
 716
 717         /* pre-allocation of buffers */
 718         /* Preallocate continuous pages. */
 719         err = snd_pcm_lib_preallocate_pages_for_all(pcm_capture,
 720                                                     SNDRV_DMA_TYPE_DEV,
 721                                                     snd_dma_pci_data
 722                                                     (chip->pci),
 723                                                     64 * 1024, 64 * 1024);
 724         if (err)
 725                 printk(KERN_ERR
 726                        "aw2: snd_pcm_lib_preallocate_pages_for_all error "
 727                        "(0x%X)\n", err);
 728
 729
 730         /* Create control */
 731         err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip));
 732         if (err < 0) {
 733                 printk(KERN_ERR "aw2: snd_ctl_add error (0x%X)\n", err);
 734                 return err;
 735         }
 736
 737         return 0;
 738 }
 739
 740 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
 741                                                struct snd_ctl_elem_info *uinfo)
 742 {
 743         static char *texts[2] = {
 744                 "Analog", "Digital"
 745         };
 746         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 747         uinfo->count = 1;
 748         uinfo->value.enumerated.items = 2;
 749         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) {
 750                 uinfo->value.enumerated.item =
 751                     uinfo->value.enumerated.items - 1;
 752         }
 753         strcpy(uinfo->value.enumerated.name,
 754                texts[uinfo->value.enumerated.item]);
 755         return 0;
 756 }
 757
 758 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
 759                                               struct snd_ctl_elem_value
 760                                               *ucontrol)
 761 {
 762         struct aw2 *chip = snd_kcontrol_chip(kcontrol);
 763         if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146))
 764                 ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL;
 765         else
 766                 ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG;
 767         return 0;
 768 }
 769
 770 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
 771                                               struct snd_ctl_elem_value
 772                                               *ucontrol)
 773 {
 774         struct aw2 *chip = snd_kcontrol_chip(kcontrol);
 775         int changed = 0;
 776         int is_disgital =
 777             snd_aw2_saa7146_is_using_digital_input(&chip->saa7146);
 778
 779         if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL)
 780              && !is_disgital)
 781             || ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG)
 782                 && is_disgital)) {
 783                 snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital);
 784                 changed = 1;
 785         }
 786         return changed;
 787 }