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fed up with those stupid warnings
[mmotm.git] / sound / pci / aw2 / aw2-alsa.c
blob4d34bb0d99d327120dde4bf5bea211f98a30105a
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 <asm/io.h>
30 #include <sound/core.h>
31 #include <sound/initval.h>
32 #include <sound/pcm.h>
33 #include <sound/pcm_params.h>
34 #include <sound/control.h>
35
36 #include "saa7146.h"
37 #include "aw2-saa7146.h"
38
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 module_param_array(index, int, NULL, 0444);
161 MODULE_PARM_DESC(index, "Index value for Audiowerk2 soundcard.");
162 module_param_array(id, charp, NULL, 0444);
163 MODULE_PARM_DESC(id, "ID string for the Audiowerk2 soundcard.");
164 module_param_array(enable, bool, NULL, 0444);
165 MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard.");
166
167 static struct pci_device_id snd_aw2_ids[] = {
168 {PCI_VENDOR_ID_SAA7146, PCI_DEVICE_ID_SAA7146, 0, 0,
169 0, 0, 0},
170 {0}
171 };
172
173 MODULE_DEVICE_TABLE(pci, snd_aw2_ids);
174
175 /* pci_driver definition */
176 static struct pci_driver driver = {
177 .name = "Emagic Audiowerk 2",
178 .id_table = snd_aw2_ids,
179 .probe = snd_aw2_probe,
180 .remove = __devexit_p(snd_aw2_remove),
181 };
182
183 /* operators for playback PCM alsa interface */
184 static struct snd_pcm_ops snd_aw2_playback_ops = {
185 .open = snd_aw2_pcm_playback_open,
186 .close = snd_aw2_pcm_playback_close,
187 .ioctl = snd_pcm_lib_ioctl,
188 .hw_params = snd_aw2_pcm_hw_params,
189 .hw_free = snd_aw2_pcm_hw_free,
190 .prepare = snd_aw2_pcm_prepare_playback,
191 .trigger = snd_aw2_pcm_trigger_playback,
192 .pointer = snd_aw2_pcm_pointer_playback,
193 };
194
195 /* operators for capture PCM alsa interface */
196 static struct snd_pcm_ops snd_aw2_capture_ops = {
197 .open = snd_aw2_pcm_capture_open,
198 .close = snd_aw2_pcm_capture_close,
199 .ioctl = snd_pcm_lib_ioctl,
200 .hw_params = snd_aw2_pcm_hw_params,
201 .hw_free = snd_aw2_pcm_hw_free,
202 .prepare = snd_aw2_pcm_prepare_capture,
203 .trigger = snd_aw2_pcm_trigger_capture,
204 .pointer = snd_aw2_pcm_pointer_capture,
205 };
206
207 static struct snd_kcontrol_new aw2_control __devinitdata = {
208 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
209 .name = "PCM Capture Route",
210 .index = 0,
211 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
212 .private_value = 0xffff,
213 .info = snd_aw2_control_switch_capture_info,
214 .get = snd_aw2_control_switch_capture_get,
215 .put = snd_aw2_control_switch_capture_put
216 };
217
218 /*********************************
219 * FUNCTION IMPLEMENTATIONS
220 ********************************/
221
222 /* initialization of the module */
223 static int __init alsa_card_aw2_init(void)
224 {
225 snd_printdd(KERN_DEBUG "aw2: Load aw2 module\n");
226 return pci_register_driver(&driver);
227 }
228
229 /* clean up the module */
230 static void __exit alsa_card_aw2_exit(void)
231 {
232 snd_printdd(KERN_DEBUG "aw2: Unload aw2 module\n");
233 pci_unregister_driver(&driver);
234 }
235
236 module_init(alsa_card_aw2_init);
237 module_exit(alsa_card_aw2_exit);
238
239 /* component-destructor */
240 static int snd_aw2_dev_free(struct snd_device *device)
241 {
242 struct aw2 *chip = device->device_data;
243
244 /* Free hardware */
245 snd_aw2_saa7146_free(&chip->saa7146);
246
247 /* release the irq */
248 if (chip->irq >= 0)
249 free_irq(chip->irq, (void *)chip);
250 /* release the i/o ports & memory */
251 if (chip->iobase_virt)
252 iounmap(chip->iobase_virt);
253
254 pci_release_regions(chip->pci);
255 /* disable the PCI entry */
256 pci_disable_device(chip->pci);
257 /* release the data */
258 kfree(chip);
259
260 return 0;
261 }
262
263 /* chip-specific constructor */
264 static int __devinit snd_aw2_create(struct snd_card *card,
265 struct pci_dev *pci, struct aw2 **rchip)
266 {
267 struct aw2 *chip;
268 int err;
269 static struct snd_device_ops ops = {
270 .dev_free = snd_aw2_dev_free,
271 };
272
273 *rchip = NULL;
274
275 /* initialize the PCI entry */
276 err = pci_enable_device(pci);
277 if (err < 0)
278 return err;
279 pci_set_master(pci);
280
281 /* check PCI availability (32bit DMA) */
282 if ((pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) ||
283 (pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0)) {
284 printk(KERN_ERR "aw2: Impossible to set 32bit mask DMA\n");
285 pci_disable_device(pci);
286 return -ENXIO;
287 }
288 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
289 if (chip == NULL) {
290 pci_disable_device(pci);
291 return -ENOMEM;
292 }
293
294 /* initialize the stuff */
295 chip->card = card;
296 chip->pci = pci;
297 chip->irq = -1;
298
299 /* (1) PCI resource allocation */
300 err = pci_request_regions(pci, "Audiowerk2");
301 if (err < 0) {
302 pci_disable_device(pci);
303 kfree(chip);
304 return err;
305 }
306 chip->iobase_phys = pci_resource_start(pci, 0);
307 chip->iobase_virt =
308 ioremap_nocache(chip->iobase_phys,
309 pci_resource_len(pci, 0));
310
311 if (chip->iobase_virt == NULL) {
312 printk(KERN_ERR "aw2: unable to remap memory region");
313 pci_release_regions(pci);
314 pci_disable_device(pci);
315 kfree(chip);
316 return -ENOMEM;
317 }
318
319 /* (2) initialization of the chip hardware */
320 snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt);
321
322 if (request_irq(pci->irq, snd_aw2_saa7146_interrupt,
323 IRQF_SHARED, "Audiowerk2", chip)) {
324 printk(KERN_ERR "aw2: Cannot grab irq %d\n", pci->irq);
325
326 iounmap(chip->iobase_virt);
327 pci_release_regions(chip->pci);
328 pci_disable_device(chip->pci);
329 kfree(chip);
330 return -EBUSY;
331 }
332 chip->irq = pci->irq;
333
334 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
335 if (err < 0) {
336 free_irq(chip->irq, (void *)chip);
337 iounmap(chip->iobase_virt);
338 pci_release_regions(chip->pci);
339 pci_disable_device(chip->pci);
340 kfree(chip);
341 return err;
342 }
343
344 snd_card_set_dev(card, &pci->dev);
345 *rchip = chip;
346
347 printk(KERN_INFO
348 "Audiowerk 2 sound card (saa7146 chipset) detected and "
349 "managed\n");
350 return 0;
351 }
352
353 /* constructor */
354 static int __devinit snd_aw2_probe(struct pci_dev *pci,
355 const struct pci_device_id *pci_id)
356 {
357 static int dev;
358 struct snd_card *card;
359 struct aw2 *chip;
360 int err;
361
362 /* (1) Continue if device is not enabled, else inc dev */
363 if (dev >= SNDRV_CARDS)
364 return -ENODEV;
365 if (!enable[dev]) {
366 dev++;
367 return -ENOENT;
368 }
369
370 /* (2) Create card instance */
371 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
372 if (err < 0)
373 return err;
374
375 /* (3) Create main component */
376 err = snd_aw2_create(card, pci, &chip);
377 if (err < 0) {
378 snd_card_free(card);
379 return err;
380 }
381
382 /* initialize mutex */
383 mutex_init(&chip->mtx);
384 /* init spinlock */
385 spin_lock_init(&chip->reg_lock);
386 /* (4) Define driver ID and name string */
387 strcpy(card->driver, "aw2");
388 strcpy(card->shortname, "Audiowerk2");
389
390 sprintf(card->longname, "%s with SAA7146 irq %i",
391 card->shortname, chip->irq);
392
393 /* (5) Create other components */
394 snd_aw2_new_pcm(chip);
395
396 /* (6) Register card instance */
397 err = snd_card_register(card);
398 if (err < 0) {
399 snd_card_free(card);
400 return err;
401 }
402
403 /* (7) Set PCI driver data */
404 pci_set_drvdata(pci, card);
405
406 dev++;
407 return 0;
408 }
409
410 /* destructor */
411 static void __devexit snd_aw2_remove(struct pci_dev *pci)
412 {
413 snd_card_free(pci_get_drvdata(pci));
414 pci_set_drvdata(pci, NULL);
415 }
416
417 /* open callback */
418 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream)
419 {
420 struct snd_pcm_runtime *runtime = substream->runtime;
421
422 snd_printdd(KERN_DEBUG "aw2: Playback_open \n");
423 runtime->hw = snd_aw2_playback_hw;
424 return 0;
425 }
426
427 /* close callback */
428 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream)
429 {
430 return 0;
431
432 }
433
434 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream)
435 {
436 struct snd_pcm_runtime *runtime = substream->runtime;
437
438 snd_printdd(KERN_DEBUG "aw2: Capture_open \n");
439 runtime->hw = snd_aw2_capture_hw;
440 return 0;
441 }
442
443 /* close callback */
444 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream)
445 {
446 /* TODO: something to do ? */
447 return 0;
448 }
449
450 /* hw_params callback */
451 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
452 struct snd_pcm_hw_params *hw_params)
453 {
454 return snd_pcm_lib_malloc_pages(substream,
455 params_buffer_bytes(hw_params));
456 }
457
458 /* hw_free callback */
459 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream)
460 {
461 return snd_pcm_lib_free_pages(substream);
462 }
463
464 /* prepare callback for playback */
465 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream)
466 {
467 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
468 struct aw2 *chip = pcm_device->chip;
469 struct snd_pcm_runtime *runtime = substream->runtime;
470 unsigned long period_size, buffer_size;
471
472 mutex_lock(&chip->mtx);
473
474 period_size = snd_pcm_lib_period_bytes(substream);
475 buffer_size = snd_pcm_lib_buffer_bytes(substream);
476
477 snd_aw2_saa7146_pcm_init_playback(&chip->saa7146,
478 pcm_device->stream_number,
479 runtime->dma_addr, period_size,
480 buffer_size);
481
482 /* Define Interrupt callback */
483 snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number,
484 (snd_aw2_saa7146_it_cb)
485 snd_pcm_period_elapsed,
486 (void *)substream);
487
488 mutex_unlock(&chip->mtx);
489
490 return 0;
491 }
492
493 /* prepare callback for capture */
494 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream)
495 {
496 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
497 struct aw2 *chip = pcm_device->chip;
498 struct snd_pcm_runtime *runtime = substream->runtime;
499 unsigned long period_size, buffer_size;
500
501 mutex_lock(&chip->mtx);
502
503 period_size = snd_pcm_lib_period_bytes(substream);
504 buffer_size = snd_pcm_lib_buffer_bytes(substream);
505
506 snd_aw2_saa7146_pcm_init_capture(&chip->saa7146,
507 pcm_device->stream_number,
508 runtime->dma_addr, period_size,
509 buffer_size);
510
511 /* Define Interrupt callback */
512 snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number,
513 (snd_aw2_saa7146_it_cb)
514 snd_pcm_period_elapsed,
515 (void *)substream);
516
517 mutex_unlock(&chip->mtx);
518
519 return 0;
520 }
521
522 /* playback trigger callback */
523 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
524 int cmd)
525 {
526 int status = 0;
527 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
528 struct aw2 *chip = pcm_device->chip;
529 spin_lock(&chip->reg_lock);
530 switch (cmd) {
531 case SNDRV_PCM_TRIGGER_START:
532 snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146,
533 pcm_device->
534 stream_number);
535 break;
536 case SNDRV_PCM_TRIGGER_STOP:
537 snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146,
538 pcm_device->
539 stream_number);
540 break;
541 default:
542 status = -EINVAL;
543 }
544 spin_unlock(&chip->reg_lock);
545 return status;
546 }
547
548 /* capture trigger callback */
549 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
550 int cmd)
551 {
552 int status = 0;
553 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
554 struct aw2 *chip = pcm_device->chip;
555 spin_lock(&chip->reg_lock);
556 switch (cmd) {
557 case SNDRV_PCM_TRIGGER_START:
558 snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146,
559 pcm_device->
560 stream_number);
561 break;
562 case SNDRV_PCM_TRIGGER_STOP:
563 snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146,
564 pcm_device->
565 stream_number);
566 break;
567 default:
568 status = -EINVAL;
569 }
570 spin_unlock(&chip->reg_lock);
571 return status;
572 }
573
574 /* playback pointer callback */
575 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
576 *substream)
577 {
578 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
579 struct aw2 *chip = pcm_device->chip;
580 unsigned int current_ptr;
581
582 /* get the current hardware pointer */
583 struct snd_pcm_runtime *runtime = substream->runtime;
584 current_ptr =
585 snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146,
586 pcm_device->stream_number,
587 runtime->dma_area,
588 runtime->buffer_size);
589
590 return bytes_to_frames(substream->runtime, current_ptr);
591 }
592
593 /* capture pointer callback */
594 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
595 *substream)
596 {
597 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
598 struct aw2 *chip = pcm_device->chip;
599 unsigned int current_ptr;
600
601 /* get the current hardware pointer */
602 struct snd_pcm_runtime *runtime = substream->runtime;
603 current_ptr =
604 snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146,
605 pcm_device->stream_number,
606 runtime->dma_area,
607 runtime->buffer_size);
608
609 return bytes_to_frames(substream->runtime, current_ptr);
610 }
611
612 /* create a pcm device */
613 static int __devinit snd_aw2_new_pcm(struct aw2 *chip)
614 {
615 struct snd_pcm *pcm_playback_ana;
616 struct snd_pcm *pcm_playback_num;
617 struct snd_pcm *pcm_capture;
618 struct aw2_pcm_device *pcm_device;
619 int err = 0;
620
621 /* Create new Alsa PCM device */
622
623 err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0,
624 &pcm_playback_ana);
625 if (err < 0) {
626 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
627 return err;
628 }
629
630 /* Creation ok */
631 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA];
632
633 /* Set PCM device name */
634 strcpy(pcm_playback_ana->name, "Analog playback");
635 /* Associate private data to PCM device */
636 pcm_playback_ana->private_data = pcm_device;
637 /* set operators of PCM device */
638 snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK,
639 &snd_aw2_playback_ops);
640 /* store PCM device */
641 pcm_device->pcm = pcm_playback_ana;
642 /* give base chip pointer to our internal pcm device
643 structure */
644 pcm_device->chip = chip;
645 /* Give stream number to PCM device */
646 pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA;
647
648 /* pre-allocation of buffers */
649 /* Preallocate continuous pages. */
650 err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_ana,
651 SNDRV_DMA_TYPE_DEV,
652 snd_dma_pci_data
653 (chip->pci),
654 64 * 1024, 64 * 1024);
655 if (err)
656 printk(KERN_ERR "aw2: snd_pcm_lib_preallocate_pages_for_all "
657 "error (0x%X)\n", err);
658
659 err = snd_pcm_new(chip->card, "Audiowerk2 digital playback", 1, 1, 0,
660 &pcm_playback_num);
661
662 if (err < 0) {
663 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
664 return err;
665 }
666 /* Creation ok */
667 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_DIG];
668
669 /* Set PCM device name */
670 strcpy(pcm_playback_num->name, "Digital playback");
671 /* Associate private data to PCM device */
672 pcm_playback_num->private_data = pcm_device;
673 /* set operators of PCM device */
674 snd_pcm_set_ops(pcm_playback_num, SNDRV_PCM_STREAM_PLAYBACK,
675 &snd_aw2_playback_ops);
676 /* store PCM device */
677 pcm_device->pcm = pcm_playback_num;
678 /* give base chip pointer to our internal pcm device
679 structure */
680 pcm_device->chip = chip;
681 /* Give stream number to PCM device */
682 pcm_device->stream_number = NUM_STREAM_PLAYBACK_DIG;
683
684 /* pre-allocation of buffers */
685 /* Preallocate continuous pages. */
686 err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_num,
687 SNDRV_DMA_TYPE_DEV,
688 snd_dma_pci_data
689 (chip->pci),
690 64 * 1024, 64 * 1024);
691 if (err)
692 printk(KERN_ERR
693 "aw2: snd_pcm_lib_preallocate_pages_for_all error "
694 "(0x%X)\n", err);
695
696
697
698 err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1,
699 &pcm_capture);
700
701 if (err < 0) {
702 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
703 return err;
704 }
705
706 /* Creation ok */
707 pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA];
708
709 /* Set PCM device name */
710 strcpy(pcm_capture->name, "Capture");
711 /* Associate private data to PCM device */
712 pcm_capture->private_data = pcm_device;
713 /* set operators of PCM device */
714 snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE,
715 &snd_aw2_capture_ops);
716 /* store PCM device */
717 pcm_device->pcm = pcm_capture;
718 /* give base chip pointer to our internal pcm device
719 structure */
720 pcm_device->chip = chip;
721 /* Give stream number to PCM device */
722 pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA;
723
724 /* pre-allocation of buffers */
725 /* Preallocate continuous pages. */
726 err = snd_pcm_lib_preallocate_pages_for_all(pcm_capture,
727 SNDRV_DMA_TYPE_DEV,
728 snd_dma_pci_data
729 (chip->pci),
730 64 * 1024, 64 * 1024);
731 if (err)
732 printk(KERN_ERR
733 "aw2: snd_pcm_lib_preallocate_pages_for_all error "
734 "(0x%X)\n", err);
735
736
737 /* Create control */
738 err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip));
739 if (err < 0) {
740 printk(KERN_ERR "aw2: snd_ctl_add error (0x%X)\n", err);
741 return err;
742 }
743
744 return 0;
745 }
746
747 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
748 struct snd_ctl_elem_info *uinfo)
749 {
750 static char *texts[2] = {
751 "Analog", "Digital"
752 };
753 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
754 uinfo->count = 1;
755 uinfo->value.enumerated.items = 2;
756 if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) {
757 uinfo->value.enumerated.item =
758 uinfo->value.enumerated.items - 1;
759 }
760 strcpy(uinfo->value.enumerated.name,
761 texts[uinfo->value.enumerated.item]);
762 return 0;
763 }
764
765 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
766 struct snd_ctl_elem_value
767 *ucontrol)
768 {
769 struct aw2 *chip = snd_kcontrol_chip(kcontrol);
770 if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146))
771 ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL;
772 else
773 ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG;
774 return 0;
775 }
776
777 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
778 struct snd_ctl_elem_value
779 *ucontrol)
780 {
781 struct aw2 *chip = snd_kcontrol_chip(kcontrol);
782 int changed = 0;
783 int is_disgital =
784 snd_aw2_saa7146_is_using_digital_input(&chip->saa7146);
785
786 if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL)
787 && !is_disgital)
788 || ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG)
789 && is_disgital)) {
790 snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital);
791 changed = 1;
792 }
793 return changed;
794 }
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