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review.shift-gmbh.com / SHIFTPHONES / kernel / shift / mainline / 98f2a97f207a776603173ee96327d977e592579d / . / sound / pci / aw2 / aw2-alsa.c
blob: 74af639b91323f77481e5cb8b62bb87b80084fd8 [file] [log] [blame]
Cedric Bregardis98f2a972008-02-20 12:05:13 +0100[diff] [blame^]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
38MODULE_LICENSE("GPL");
39MODULE_AUTHOR("Cedric Bregardis <cedric.bregardis@free.fr>, "
40 "Jean-Christian Hassler <jhassler@free.fr>");
41MODULE_DESCRIPTION("Emagic Audiowerk 2 sound driver");
42MODULE_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 */
57static 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
74static 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
91struct aw2_pcm_device {
92 struct snd_pcm *pcm;
93 unsigned int stream_number;
94 struct aw2 *chip;
95};
96
97struct 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 ********************************/
117static int __init alsa_card_aw2_init(void);
118static void __exit alsa_card_aw2_exit(void);
119static int snd_aw2_dev_free(struct snd_device *device);
120static int __devinit snd_aw2_create(struct snd_card *card,
121 struct pci_dev *pci, struct aw2 **rchip);
122static int __devinit snd_aw2_probe(struct pci_dev *pci,
123 const struct pci_device_id *pci_id);
124static void __devexit snd_aw2_remove(struct pci_dev *pci);
125static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
126static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream);
127static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream);
128static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream);
129static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
130 struct snd_pcm_hw_params *hw_params);
131static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream);
132static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream);
133static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream);
134static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
135 int cmd);
136static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
137 int cmd);
138static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
139 *substream);
140static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
141 *substream);
142static int __devinit snd_aw2_new_pcm(struct aw2 *chip);
143
144static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
145 struct snd_ctl_elem_info *uinfo);
146static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
147 struct snd_ctl_elem_value
148 *ucontrol);
149static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
150 struct snd_ctl_elem_value
151 *ucontrol);
152
153/*********************************
154 * VARIABLES
155 ********************************/
156static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
157static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
158static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
159
160static 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
166MODULE_DEVICE_TABLE(pci, snd_aw2_ids);
167
168/* pci_driver definition */
169static 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 */
177static 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 */
189static 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
200static 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 */
216static 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 */
223static 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
229module_init(alsa_card_aw2_init);
230module_exit(alsa_card_aw2_exit);
231
232/* component-destructor */
233static 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 */
257static 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 */
347static 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 */
404static 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 */
411static 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 */
421static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream)
422{
423 return 0;
424
425}
426
427static 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 */
437static 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 */
444static 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 */
452static 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 */
458static 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 */
487static 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 */
516static 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 */
542static 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 */
568static 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 */
587static 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 */
606static 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
740static 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
758static 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
770static 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}