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ALSA: pci: Simplify with dma_set_mask_and_coherent()
[linux-2.6-block.git] / sound / pci / aw2 / aw2-alsa.c
CommitLineData
023b915e 1// SPDX-License-Identifier: GPL-2.0-only
98f2a97f
CB		 2/*****************************************************************************
3 *
4 * Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
5 * Jean-Christian Hassler <jhassler@free.fr>
6 *
7 * This file is part of the Audiowerk2 ALSA driver
8 *
98f2a97f
CB		 9 *****************************************************************************/
10#include <linux/init.h>
11#include <linux/pci.h>
91e24faa 12#include <linux/dma-mapping.h>
98f2a97f
CB		 13#include <linux/slab.h>
14#include <linux/interrupt.h>
15#include <linux/delay.h>
34329fae 16#include <linux/io.h>
da155d5b 17#include <linux/module.h>
98f2a97f
CB		 18#include <sound/core.h>
19#include <sound/initval.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/control.h>
23
24#include "saa7146.h"
25#include "aw2-saa7146.h"
26
98f2a97f
CB		 27MODULE_AUTHOR("Cedric Bregardis <cedric.bregardis@free.fr>, "
28 "Jean-Christian Hassler <jhassler@free.fr>");
29MODULE_DESCRIPTION("Emagic Audiowerk 2 sound driver");
30MODULE_LICENSE("GPL");
31
32/*********************************
33 * DEFINES
34 ********************************/
98f2a97f
CB		 35#define CTL_ROUTE_ANALOG 0
36#define CTL_ROUTE_DIGITAL 1
37
38/*********************************
39 * TYPEDEFS
40 ********************************/
41 /* hardware definition */
343fd505 42static const struct snd_pcm_hardware snd_aw2_playback_hw = {
98f2a97f
CB		 43 .info = (SNDRV_PCM_INFO_MMAP |
44 SNDRV_PCM_INFO_INTERLEAVED |
45 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
46 .formats = SNDRV_PCM_FMTBIT_S16_LE,
47 .rates = SNDRV_PCM_RATE_44100,
48 .rate_min = 44100,
49 .rate_max = 44100,
50 .channels_min = 2,
51 .channels_max = 4,
52 .buffer_bytes_max = 32768,
53 .period_bytes_min = 4096,
54 .period_bytes_max = 32768,
55 .periods_min = 1,
56 .periods_max = 1024,
57};
58
343fd505 59static const struct snd_pcm_hardware snd_aw2_capture_hw = {
98f2a97f
CB		 60 .info = (SNDRV_PCM_INFO_MMAP |
61 SNDRV_PCM_INFO_INTERLEAVED |
62 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
63 .formats = SNDRV_PCM_FMTBIT_S16_LE,
64 .rates = SNDRV_PCM_RATE_44100,
65 .rate_min = 44100,
66 .rate_max = 44100,
67 .channels_min = 2,
68 .channels_max = 2,
69 .buffer_bytes_max = 32768,
70 .period_bytes_min = 4096,
71 .period_bytes_max = 32768,
72 .periods_min = 1,
73 .periods_max = 1024,
74};
75
76struct aw2_pcm_device {
77 struct snd_pcm *pcm;
78 unsigned int stream_number;
79 struct aw2 *chip;
80};
81
82struct aw2 {
83 struct snd_aw2_saa7146 saa7146;
84
85 struct pci_dev *pci;
86 int irq;
87 spinlock_t reg_lock;
88 struct mutex mtx;
89
90 unsigned long iobase_phys;
91 void __iomem *iobase_virt;
92
93 struct snd_card *card;
94
95 struct aw2_pcm_device device_playback[NB_STREAM_PLAYBACK];
96 struct aw2_pcm_device device_capture[NB_STREAM_CAPTURE];
97};
98
99/*********************************
100 * FUNCTION DECLARATIONS
101 ********************************/
98f2a97f 102static int snd_aw2_dev_free(struct snd_device *device);
e23e7a14
BP		 103static int snd_aw2_create(struct snd_card *card,
104 struct pci_dev *pci, struct aw2 **rchip);
105static int snd_aw2_probe(struct pci_dev *pci,
106 const struct pci_device_id *pci_id);
107static void snd_aw2_remove(struct pci_dev *pci);
98f2a97f
CB		 108static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
109static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream);
110static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream);
111static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream);
98f2a97f
CB		 112static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream);
113static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream);
114static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
115 int cmd);
116static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
117 int cmd);
118static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
119 *substream);
120static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
121 *substream);
e23e7a14 122static int snd_aw2_new_pcm(struct aw2 *chip);
98f2a97f
CB		 123
124static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
125 struct snd_ctl_elem_info *uinfo);
126static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
127 struct snd_ctl_elem_value
128 *ucontrol);
129static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
130 struct snd_ctl_elem_value
131 *ucontrol);
132
133/*********************************
134 * VARIABLES
135 ********************************/
136static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
137static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
a67ff6a5 138static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
98f2a97f 139
34b6757d
TI		 140module_param_array(index, int, NULL, 0444);
141MODULE_PARM_DESC(index, "Index value for Audiowerk2 soundcard.");
142module_param_array(id, charp, NULL, 0444);
143MODULE_PARM_DESC(id, "ID string for the Audiowerk2 soundcard.");
144module_param_array(enable, bool, NULL, 0444);
145MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard.");
146
9baa3c34 147static const struct pci_device_id snd_aw2_ids[] = {
34329fae 148 {PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146, 0, 0,
98f2a97f
CB		 149 0, 0, 0},
150 {0}
151};
152
153MODULE_DEVICE_TABLE(pci, snd_aw2_ids);
154
155/* pci_driver definition */
e9f66d9b 156static struct pci_driver aw2_driver = {
3733e424 157 .name = KBUILD_MODNAME,
98f2a97f
CB		 158 .id_table = snd_aw2_ids,
159 .probe = snd_aw2_probe,
e23e7a14 160 .remove = snd_aw2_remove,
98f2a97f
CB		 161};
162
e9f66d9b
TI		 163module_pci_driver(aw2_driver);
164
98f2a97f 165/* operators for playback PCM alsa interface */
6769e988 166static const struct snd_pcm_ops snd_aw2_playback_ops = {
98f2a97f
CB		 167 .open = snd_aw2_pcm_playback_open,
168 .close = snd_aw2_pcm_playback_close,
98f2a97f
CB		 169 .prepare = snd_aw2_pcm_prepare_playback,
170 .trigger = snd_aw2_pcm_trigger_playback,
171 .pointer = snd_aw2_pcm_pointer_playback,
172};
173
174/* operators for capture PCM alsa interface */
6769e988 175static const struct snd_pcm_ops snd_aw2_capture_ops = {
98f2a97f
CB		 176 .open = snd_aw2_pcm_capture_open,
177 .close = snd_aw2_pcm_capture_close,
98f2a97f
CB		 178 .prepare = snd_aw2_pcm_prepare_capture,
179 .trigger = snd_aw2_pcm_trigger_capture,
180 .pointer = snd_aw2_pcm_pointer_capture,
181};
182
f3b827e0 183static const struct snd_kcontrol_new aw2_control = {
98f2a97f
CB		 184 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
185 .name = "PCM Capture Route",
186 .index = 0,
187 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
188 .private_value = 0xffff,
189 .info = snd_aw2_control_switch_capture_info,
190 .get = snd_aw2_control_switch_capture_get,
191 .put = snd_aw2_control_switch_capture_put
192};
193
194/*********************************
195 * FUNCTION IMPLEMENTATIONS
196 ********************************/
197
98f2a97f
CB		 198/* component-destructor */
199static int snd_aw2_dev_free(struct snd_device *device)
200{
201 struct aw2 *chip = device->device_data;
202
203 /* Free hardware */
204 snd_aw2_saa7146_free(&chip->saa7146);
205
206 /* release the irq */
207 if (chip->irq >= 0)
208 free_irq(chip->irq, (void *)chip);
209 /* release the i/o ports & memory */
ff6defa6 210 iounmap(chip->iobase_virt);
98f2a97f
CB		 211 pci_release_regions(chip->pci);
212 /* disable the PCI entry */
213 pci_disable_device(chip->pci);
214 /* release the data */
215 kfree(chip);
216
217 return 0;
218}
219
220/* chip-specific constructor */
e23e7a14
BP		 221static int snd_aw2_create(struct snd_card *card,
222 struct pci_dev *pci, struct aw2 **rchip)
98f2a97f
CB		 223{
224 struct aw2 *chip;
225 int err;
efb0ad25 226 static const struct snd_device_ops ops = {
98f2a97f
CB		 227 .dev_free = snd_aw2_dev_free,
228 };
229
230 *rchip = NULL;
231
232 /* initialize the PCI entry */
233 err = pci_enable_device(pci);
234 if (err < 0)
235 return err;
236 pci_set_master(pci);
237
238 /* check PCI availability (32bit DMA) */
669f65ea 239 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) {
179bb7f1 240 dev_err(card->dev, "Impossible to set 32bit mask DMA\n");
98f2a97f
CB		 241 pci_disable_device(pci);
242 return -ENXIO;
243 }
244 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
245 if (chip == NULL) {
246 pci_disable_device(pci);
247 return -ENOMEM;
248 }
249
250 /* initialize the stuff */
251 chip->card = card;
252 chip->pci = pci;
253 chip->irq = -1;
254
255 /* (1) PCI resource allocation */
256 err = pci_request_regions(pci, "Audiowerk2");
257 if (err < 0) {
258 pci_disable_device(pci);
259 kfree(chip);
260 return err;
261 }
262 chip->iobase_phys = pci_resource_start(pci, 0);
263 chip->iobase_virt =
4bdc0d67 264 ioremap(chip->iobase_phys,
98f2a97f
CB		 265 pci_resource_len(pci, 0));
266
267 if (chip->iobase_virt == NULL) {
179bb7f1 268 dev_err(card->dev, "unable to remap memory region");
98f2a97f
CB		 269 pci_release_regions(pci);
270 pci_disable_device(pci);
271 kfree(chip);
272 return -ENOMEM;
273 }
274
44e05177
TI		 275 /* (2) initialization of the chip hardware */
276 snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt);
98f2a97f
CB		 277
278 if (request_irq(pci->irq, snd_aw2_saa7146_interrupt,
934c2b6d 279 IRQF_SHARED, KBUILD_MODNAME, chip)) {
179bb7f1 280 dev_err(card->dev, "Cannot grab irq %d\n", pci->irq);
98f2a97f
CB		 281
282 iounmap(chip->iobase_virt);
283 pci_release_regions(chip->pci);
284 pci_disable_device(chip->pci);
285 kfree(chip);
286 return -EBUSY;
287 }
288 chip->irq = pci->irq;
f8582e00 289 card->sync_irq = chip->irq;
98f2a97f 290
98f2a97f
CB		 291 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
292 if (err < 0) {
293 free_irq(chip->irq, (void *)chip);
294 iounmap(chip->iobase_virt);
295 pci_release_regions(chip->pci);
296 pci_disable_device(chip->pci);
297 kfree(chip);
298 return err;
299 }
300
98f2a97f
CB		 301 *rchip = chip;
302
179bb7f1
TI		 303 dev_info(card->dev,
304 "Audiowerk 2 sound card (saa7146 chipset) detected and managed\n");
98f2a97f
CB		 305 return 0;
306}
307
308/* constructor */
e23e7a14
BP		 309static int snd_aw2_probe(struct pci_dev *pci,
310 const struct pci_device_id *pci_id)
98f2a97f
CB		 311{
312 static int dev;
313 struct snd_card *card;
314 struct aw2 *chip;
315 int err;
316
317 /* (1) Continue if device is not enabled, else inc dev */
318 if (dev >= SNDRV_CARDS)
319 return -ENODEV;
320 if (!enable[dev]) {
321 dev++;
322 return -ENOENT;
323 }
324
325 /* (2) Create card instance */
60c5772b
TI		 326 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
327 0, &card);
e58de7ba
TI		 328 if (err < 0)
329 return err;
98f2a97f
CB		 330
331 /* (3) Create main component */
332 err = snd_aw2_create(card, pci, &chip);
333 if (err < 0) {
334 snd_card_free(card);
335 return err;
336 }
337
338 /* initialize mutex */
339 mutex_init(&chip->mtx);
340 /* init spinlock */
341 spin_lock_init(&chip->reg_lock);
342 /* (4) Define driver ID and name string */
343 strcpy(card->driver, "aw2");
344 strcpy(card->shortname, "Audiowerk2");
345
346 sprintf(card->longname, "%s with SAA7146 irq %i",
347 card->shortname, chip->irq);
348
349 /* (5) Create other components */
350 snd_aw2_new_pcm(chip);
351
352 /* (6) Register card instance */
353 err = snd_card_register(card);
354 if (err < 0) {
355 snd_card_free(card);
356 return err;
357 }
358
359 /* (7) Set PCI driver data */
360 pci_set_drvdata(pci, card);
361
362 dev++;
363 return 0;
364}
365
366/* destructor */
e23e7a14 367static void snd_aw2_remove(struct pci_dev *pci)
98f2a97f
CB		 368{
369 snd_card_free(pci_get_drvdata(pci));
98f2a97f
CB		 370}
371
372/* open callback */
373static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream)
374{
375 struct snd_pcm_runtime *runtime = substream->runtime;
376
179bb7f1 377 dev_dbg(substream->pcm->card->dev, "Playback_open\n");
98f2a97f
CB		 378 runtime->hw = snd_aw2_playback_hw;
379 return 0;
380}
381
382/* close callback */
383static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream)
384{
385 return 0;
386
387}
388
389static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream)
390{
391 struct snd_pcm_runtime *runtime = substream->runtime;
392
179bb7f1 393 dev_dbg(substream->pcm->card->dev, "Capture_open\n");
98f2a97f
CB		 394 runtime->hw = snd_aw2_capture_hw;
395 return 0;
396}
397
398/* close callback */
399static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream)
400{
401 /* TODO: something to do ? */
402 return 0;
403}
404
98f2a97f
CB		 405/* prepare callback for playback */
406static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream)
407{
408 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
409 struct aw2 *chip = pcm_device->chip;
410 struct snd_pcm_runtime *runtime = substream->runtime;
411 unsigned long period_size, buffer_size;
412
413 mutex_lock(&chip->mtx);
414
415 period_size = snd_pcm_lib_period_bytes(substream);
416 buffer_size = snd_pcm_lib_buffer_bytes(substream);
417
418 snd_aw2_saa7146_pcm_init_playback(&chip->saa7146,
419 pcm_device->stream_number,
420 runtime->dma_addr, period_size,
421 buffer_size);
422
423 /* Define Interrupt callback */
424 snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number,
425 (snd_aw2_saa7146_it_cb)
426 snd_pcm_period_elapsed,
427 (void *)substream);
428
429 mutex_unlock(&chip->mtx);
430
431 return 0;
432}
433
434/* prepare callback for capture */
435static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream)
436{
437 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
438 struct aw2 *chip = pcm_device->chip;
439 struct snd_pcm_runtime *runtime = substream->runtime;
440 unsigned long period_size, buffer_size;
441
442 mutex_lock(&chip->mtx);
443
444 period_size = snd_pcm_lib_period_bytes(substream);
445 buffer_size = snd_pcm_lib_buffer_bytes(substream);
446
447 snd_aw2_saa7146_pcm_init_capture(&chip->saa7146,
448 pcm_device->stream_number,
449 runtime->dma_addr, period_size,
450 buffer_size);
451
452 /* Define Interrupt callback */
453 snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number,
454 (snd_aw2_saa7146_it_cb)
455 snd_pcm_period_elapsed,
456 (void *)substream);
457
458 mutex_unlock(&chip->mtx);
459
460 return 0;
461}
462
463/* playback trigger callback */
464static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
465 int cmd)
466{
467 int status = 0;
468 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
469 struct aw2 *chip = pcm_device->chip;
470 spin_lock(&chip->reg_lock);
471 switch (cmd) {
472 case SNDRV_PCM_TRIGGER_START:
473 snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146,
474 pcm_device->
475 stream_number);
476 break;
477 case SNDRV_PCM_TRIGGER_STOP:
478 snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146,
479 pcm_device->
480 stream_number);
481 break;
482 default:
483 status = -EINVAL;
484 }
485 spin_unlock(&chip->reg_lock);
486 return status;
487}
488
489/* capture trigger callback */
490static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
491 int cmd)
492{
493 int status = 0;
494 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
495 struct aw2 *chip = pcm_device->chip;
496 spin_lock(&chip->reg_lock);
497 switch (cmd) {
498 case SNDRV_PCM_TRIGGER_START:
499 snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146,
500 pcm_device->
501 stream_number);
502 break;
503 case SNDRV_PCM_TRIGGER_STOP:
504 snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146,
505 pcm_device->
506 stream_number);
507 break;
508 default:
509 status = -EINVAL;
510 }
511 spin_unlock(&chip->reg_lock);
512 return status;
513}
514
515/* playback pointer callback */
516static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
517 *substream)
518{
519 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
520 struct aw2 *chip = pcm_device->chip;
521 unsigned int current_ptr;
522
523 /* get the current hardware pointer */
524 struct snd_pcm_runtime *runtime = substream->runtime;
525 current_ptr =
526 snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146,
527 pcm_device->stream_number,
528 runtime->dma_area,
529 runtime->buffer_size);
530
531 return bytes_to_frames(substream->runtime, current_ptr);
532}
533
534/* capture pointer callback */
535static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
536 *substream)
537{
538 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
539 struct aw2 *chip = pcm_device->chip;
540 unsigned int current_ptr;
541
542 /* get the current hardware pointer */
543 struct snd_pcm_runtime *runtime = substream->runtime;
544 current_ptr =
545 snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146,
546 pcm_device->stream_number,
547 runtime->dma_area,
548 runtime->buffer_size);
549
550 return bytes_to_frames(substream->runtime, current_ptr);
551}
552
553/* create a pcm device */
e23e7a14 554static int snd_aw2_new_pcm(struct aw2 *chip)
98f2a97f
CB		 555{
556 struct snd_pcm *pcm_playback_ana;
557 struct snd_pcm *pcm_playback_num;
558 struct snd_pcm *pcm_capture;
559 struct aw2_pcm_device *pcm_device;
560 int err = 0;
561
562 /* Create new Alsa PCM device */
563
564 err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0,
565 &pcm_playback_ana);
566 if (err < 0) {
179bb7f1 567 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err);
98f2a97f
CB		 568 return err;
569 }
570
571 /* Creation ok */
572 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA];
573
574 /* Set PCM device name */
575 strcpy(pcm_playback_ana->name, "Analog playback");
576 /* Associate private data to PCM device */
577 pcm_playback_ana->private_data = pcm_device;
578 /* set operators of PCM device */
579 snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK,
580 &snd_aw2_playback_ops);
581 /* store PCM device */
582 pcm_device->pcm = pcm_playback_ana;
583 /* give base chip pointer to our internal pcm device
584 structure */
585 pcm_device->chip = chip;
586 /* Give stream number to PCM device */
587 pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA;
588
589 /* pre-allocation of buffers */
590 /* Preallocate continuous pages. */
817790cc
TI		 591 snd_pcm_set_managed_buffer_all(pcm_playback_ana,
592 SNDRV_DMA_TYPE_DEV,
593 &chip->pci->dev,
594 64 * 1024, 64 * 1024);
98f2a97f
CB		 595
596 err = snd_pcm_new(chip->card, "Audiowerk2 digital playback", 1, 1, 0,
597 &pcm_playback_num);
598
599 if (err < 0) {
179bb7f1 600 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err);
98f2a97f
CB		 601 return err;
602 }
603 /* Creation ok */
604 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_DIG];
605
606 /* Set PCM device name */
607 strcpy(pcm_playback_num->name, "Digital playback");
608 /* Associate private data to PCM device */
609 pcm_playback_num->private_data = pcm_device;
610 /* set operators of PCM device */
611 snd_pcm_set_ops(pcm_playback_num, SNDRV_PCM_STREAM_PLAYBACK,
612 &snd_aw2_playback_ops);
613 /* store PCM device */
614 pcm_device->pcm = pcm_playback_num;
615 /* give base chip pointer to our internal pcm device
616 structure */
617 pcm_device->chip = chip;
618 /* Give stream number to PCM device */
619 pcm_device->stream_number = NUM_STREAM_PLAYBACK_DIG;
620
621 /* pre-allocation of buffers */
622 /* Preallocate continuous pages. */
817790cc
TI		 623 snd_pcm_set_managed_buffer_all(pcm_playback_num,
624 SNDRV_DMA_TYPE_DEV,
625 &chip->pci->dev,
626 64 * 1024, 64 * 1024);
98f2a97f
CB		 627
628 err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1,
629 &pcm_capture);
630
631 if (err < 0) {
179bb7f1 632 dev_err(chip->card->dev, "snd_pcm_new error (0x%X)\n", err);
98f2a97f
CB		 633 return err;
634 }
635
636 /* Creation ok */
637 pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA];
638
639 /* Set PCM device name */
640 strcpy(pcm_capture->name, "Capture");
641 /* Associate private data to PCM device */
642 pcm_capture->private_data = pcm_device;
643 /* set operators of PCM device */
644 snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE,
645 &snd_aw2_capture_ops);
646 /* store PCM device */
647 pcm_device->pcm = pcm_capture;
648 /* give base chip pointer to our internal pcm device
649 structure */
650 pcm_device->chip = chip;
651 /* Give stream number to PCM device */
652 pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA;
653
654 /* pre-allocation of buffers */
655 /* Preallocate continuous pages. */
817790cc
TI		 656 snd_pcm_set_managed_buffer_all(pcm_capture,
657 SNDRV_DMA_TYPE_DEV,
658 &chip->pci->dev,
659 64 * 1024, 64 * 1024);
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CB		 660
661 /* Create control */
662 err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip));
663 if (err < 0) {
179bb7f1 664 dev_err(chip->card->dev, "snd_ctl_add error (0x%X)\n", err);
98f2a97f
CB		 665 return err;
666 }
667
668 return 0;
669}
670
671static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
672 struct snd_ctl_elem_info *uinfo)
673{
4d765e48 674 static const char * const texts[2] = {
98f2a97f
CB		 675 "Analog", "Digital"
676 };
4d765e48 677 return snd_ctl_enum_info(uinfo, 1, 2, texts);
98f2a97f
CB		 678}
679
680static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
681 struct snd_ctl_elem_value
682 *ucontrol)
683{
684 struct aw2 *chip = snd_kcontrol_chip(kcontrol);
685 if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146))
686 ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL;
687 else
688 ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG;
689 return 0;
690}
691
692static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
693 struct snd_ctl_elem_value
694 *ucontrol)
695{
696 struct aw2 *chip = snd_kcontrol_chip(kcontrol);
697 int changed = 0;
698 int is_disgital =
699 snd_aw2_saa7146_is_using_digital_input(&chip->saa7146);
700
701 if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL)
702 && !is_disgital)
703 || ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG)
704 && is_disgital)) {
705 snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital);
706 changed = 1;
707 }
708 return changed;
709}
Linux 6.x block layer and io_uring tree(s)