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Merge branch 'for-3.11/drivers' of git://git.kernel.dk/linux-block
[linux-2.6-block.git] / sound / pci / aw2 / aw2-alsa.c
CommitLineData
98f2a97f
CB		 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>
91e24faa 25#include <linux/dma-mapping.h>
98f2a97f
CB		 26#include <linux/slab.h>
27#include <linux/interrupt.h>
28#include <linux/delay.h>
34329fae 29#include <linux/io.h>
da155d5b 30#include <linux/module.h>
98f2a97f
CB		 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
98f2a97f
CB		 40MODULE_AUTHOR("Cedric Bregardis <cedric.bregardis@free.fr>, "
41 "Jean-Christian Hassler <jhassler@free.fr>");
42MODULE_DESCRIPTION("Emagic Audiowerk 2 sound driver");
43MODULE_LICENSE("GPL");
44
45/*********************************
46 * DEFINES
47 ********************************/
98f2a97f
CB		 48#define CTL_ROUTE_ANALOG 0
49#define CTL_ROUTE_DIGITAL 1
50
51/*********************************
52 * TYPEDEFS
53 ********************************/
54 /* hardware definition */
55static 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
72static 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
89struct aw2_pcm_device {
90 struct snd_pcm *pcm;
91 unsigned int stream_number;
92 struct aw2 *chip;
93};
94
95struct 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 ********************************/
98f2a97f 115static int snd_aw2_dev_free(struct snd_device *device);
e23e7a14
BP		 116static int snd_aw2_create(struct snd_card *card,
117 struct pci_dev *pci, struct aw2 **rchip);
118static int snd_aw2_probe(struct pci_dev *pci,
119 const struct pci_device_id *pci_id);
120static void snd_aw2_remove(struct pci_dev *pci);
98f2a97f
CB		 121static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
122static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream);
123static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream);
124static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream);
125static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
126 struct snd_pcm_hw_params *hw_params);
127static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream);
128static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream);
129static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream);
130static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
131 int cmd);
132static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
133 int cmd);
134static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
135 *substream);
136static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
137 *substream);
e23e7a14 138static int snd_aw2_new_pcm(struct aw2 *chip);
98f2a97f
CB		 139
140static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
141 struct snd_ctl_elem_info *uinfo);
142static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
143 struct snd_ctl_elem_value
144 *ucontrol);
145static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
146 struct snd_ctl_elem_value
147 *ucontrol);
148
149/*********************************
150 * VARIABLES
151 ********************************/
152static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
153static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
a67ff6a5 154static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
98f2a97f 155
34b6757d
TI		 156module_param_array(index, int, NULL, 0444);
157MODULE_PARM_DESC(index, "Index value for Audiowerk2 soundcard.");
158module_param_array(id, charp, NULL, 0444);
159MODULE_PARM_DESC(id, "ID string for the Audiowerk2 soundcard.");
160module_param_array(enable, bool, NULL, 0444);
161MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard.");
162
cebe41d4 163static DEFINE_PCI_DEVICE_TABLE(snd_aw2_ids) = {
34329fae 164 {PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146, 0, 0,
98f2a97f
CB		 165 0, 0, 0},
166 {0}
167};
168
169MODULE_DEVICE_TABLE(pci, snd_aw2_ids);
170
171/* pci_driver definition */
e9f66d9b 172static struct pci_driver aw2_driver = {
3733e424 173 .name = KBUILD_MODNAME,
98f2a97f
CB		 174 .id_table = snd_aw2_ids,
175 .probe = snd_aw2_probe,
e23e7a14 176 .remove = snd_aw2_remove,
98f2a97f
CB		 177};
178
e9f66d9b
TI		 179module_pci_driver(aw2_driver);
180
98f2a97f
CB		 181/* operators for playback PCM alsa interface */
182static 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 */
194static 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
e23e7a14 205static struct snd_kcontrol_new aw2_control = {
98f2a97f
CB		 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
98f2a97f
CB		 220/* component-destructor */
221static 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 */
e23e7a14
BP		 245static int snd_aw2_create(struct snd_card *card,
246 struct pci_dev *pci, struct aw2 **rchip)
98f2a97f
CB		 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) */
284901a9
YH		 263 if ((pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) ||
264 (pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0)) {
98f2a97f
CB		 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
44e05177
TI		 300 /* (2) initialization of the chip hardware */
301 snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt);
98f2a97f
CB		 302
303 if (request_irq(pci->irq, snd_aw2_saa7146_interrupt,
934c2b6d 304 IRQF_SHARED, KBUILD_MODNAME, chip)) {
98f2a97f
CB		 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
98f2a97f
CB		 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 */
e23e7a14
BP		 335static int snd_aw2_probe(struct pci_dev *pci,
336 const struct pci_device_id *pci_id)
98f2a97f
CB		 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 */
e58de7ba
TI		 352 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
353 if (err < 0)
354 return err;
98f2a97f
CB		 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 */
e23e7a14 392static void snd_aw2_remove(struct pci_dev *pci)
98f2a97f
CB		 393{
394 snd_card_free(pci_get_drvdata(pci));
98f2a97f
CB		 395}
396
397/* open callback */
398static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream)
399{
400 struct snd_pcm_runtime *runtime = substream->runtime;
401
34329fae 402 snd_printdd(KERN_DEBUG "aw2: Playback_open\n");
98f2a97f
CB		 403 runtime->hw = snd_aw2_playback_hw;
404 return 0;
405}
406
407/* close callback */
408static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream)
409{
410 return 0;
411
412}
413
414static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream)
415{
416 struct snd_pcm_runtime *runtime = substream->runtime;
417
34329fae 418 snd_printdd(KERN_DEBUG "aw2: Capture_open\n");
98f2a97f
CB		 419 runtime->hw = snd_aw2_capture_hw;
420 return 0;
421}
422
423/* close callback */
424static 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 */
431static 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 */
439static 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 */
445static 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 */
474static 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 */
503static 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 */
529static 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 */
555static 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 */
574static 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 */
e23e7a14 593static int snd_aw2_new_pcm(struct aw2 *chip)
98f2a97f
CB		 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
727static 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
745static 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
757static 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}
Linux 6.x block layer and io_uring tree(s)