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 <linux/io.h>
30 #include <linux/module.h>
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
40 MODULE_AUTHOR("Cedric Bregardis <cedric.bregardis@free.fr>, "
41 "Jean-Christian Hassler <jhassler@free.fr>");
42 MODULE_DESCRIPTION("Emagic Audiowerk 2 sound driver");
43 MODULE_LICENSE("GPL");
44
45 /*********************************
46 * DEFINES
47 ********************************/
48 #define CTL_ROUTE_ANALOG 0
49 #define CTL_ROUTE_DIGITAL 1
50
51 /*********************************
52 * TYPEDEFS
53 ********************************/
54 /* hardware definition */
55 static 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
72 static 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
89 struct aw2_pcm_device {
90 struct snd_pcm *pcm;
91 unsigned int stream_number;
92 struct aw2 *chip;
93 };
94
95 struct 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 ********************************/
115 static int __init alsa_card_aw2_init(void);
116 static void __exit alsa_card_aw2_exit(void);
117 static int snd_aw2_dev_free(struct snd_device *device);
118 static int __devinit snd_aw2_create(struct snd_card *card,
119 struct pci_dev *pci, struct aw2 **rchip);
120 static int __devinit snd_aw2_probe(struct pci_dev *pci,
121 const struct pci_device_id *pci_id);
122 static void __devexit snd_aw2_remove(struct pci_dev *pci);
123 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream);
124 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream);
125 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream);
126 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream);
127 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
128 struct snd_pcm_hw_params *hw_params);
129 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream);
130 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream);
131 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream);
132 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
133 int cmd);
134 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
135 int cmd);
136 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
137 *substream);
138 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
139 *substream);
140 static int __devinit snd_aw2_new_pcm(struct aw2 *chip);
141
142 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
143 struct snd_ctl_elem_info *uinfo);
144 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
145 struct snd_ctl_elem_value
146 *ucontrol);
147 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
148 struct snd_ctl_elem_value
149 *ucontrol);
150
151 /*********************************
152 * VARIABLES
153 ********************************/
154 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
155 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
156 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
157
158 module_param_array(index, int, NULL, 0444);
159 MODULE_PARM_DESC(index, "Index value for Audiowerk2 soundcard.");
160 module_param_array(id, charp, NULL, 0444);
161 MODULE_PARM_DESC(id, "ID string for the Audiowerk2 soundcard.");
162 module_param_array(enable, bool, NULL, 0444);
163 MODULE_PARM_DESC(enable, "Enable Audiowerk2 soundcard.");
164
165 static DEFINE_PCI_DEVICE_TABLE(snd_aw2_ids) = {
166 {PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146, 0, 0,
167 0, 0, 0},
168 {0}
169 };
170
171 MODULE_DEVICE_TABLE(pci, snd_aw2_ids);
172
173 /* pci_driver definition */
174 static struct pci_driver driver = {
175 .name = KBUILD_MODNAME,
176 .id_table = snd_aw2_ids,
177 .probe = snd_aw2_probe,
178 .remove = __devexit_p(snd_aw2_remove),
179 };
180
181 /* operators for playback PCM alsa interface */
182 static 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 */
194 static 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
205 static struct snd_kcontrol_new aw2_control __devinitdata = {
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
220 /* initialization of the module */
alsa_card_aw2_init(void)221 static int __init alsa_card_aw2_init(void)
222 {
223 snd_printdd(KERN_DEBUG "aw2: Load aw2 module\n");
224 return pci_register_driver(&driver);
225 }
226
227 /* clean up the module */
alsa_card_aw2_exit(void)228 static void __exit alsa_card_aw2_exit(void)
229 {
230 snd_printdd(KERN_DEBUG "aw2: Unload aw2 module\n");
231 pci_unregister_driver(&driver);
232 }
233
234 module_init(alsa_card_aw2_init);
235 module_exit(alsa_card_aw2_exit);
236
237 /* component-destructor */
snd_aw2_dev_free(struct snd_device * device)238 static int snd_aw2_dev_free(struct snd_device *device)
239 {
240 struct aw2 *chip = device->device_data;
241
242 /* Free hardware */
243 snd_aw2_saa7146_free(&chip->saa7146);
244
245 /* release the irq */
246 if (chip->irq >= 0)
247 free_irq(chip->irq, (void *)chip);
248 /* release the i/o ports & memory */
249 if (chip->iobase_virt)
250 iounmap(chip->iobase_virt);
251
252 pci_release_regions(chip->pci);
253 /* disable the PCI entry */
254 pci_disable_device(chip->pci);
255 /* release the data */
256 kfree(chip);
257
258 return 0;
259 }
260
261 /* chip-specific constructor */
snd_aw2_create(struct snd_card * card,struct pci_dev * pci,struct aw2 ** rchip)262 static int __devinit snd_aw2_create(struct snd_card *card,
263 struct pci_dev *pci, struct aw2 **rchip)
264 {
265 struct aw2 *chip;
266 int err;
267 static struct snd_device_ops ops = {
268 .dev_free = snd_aw2_dev_free,
269 };
270
271 *rchip = NULL;
272
273 /* initialize the PCI entry */
274 err = pci_enable_device(pci);
275 if (err < 0)
276 return err;
277 pci_set_master(pci);
278
279 /* check PCI availability (32bit DMA) */
280 if ((pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0) ||
281 (pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0)) {
282 printk(KERN_ERR "aw2: Impossible to set 32bit mask DMA\n");
283 pci_disable_device(pci);
284 return -ENXIO;
285 }
286 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
287 if (chip == NULL) {
288 pci_disable_device(pci);
289 return -ENOMEM;
290 }
291
292 /* initialize the stuff */
293 chip->card = card;
294 chip->pci = pci;
295 chip->irq = -1;
296
297 /* (1) PCI resource allocation */
298 err = pci_request_regions(pci, "Audiowerk2");
299 if (err < 0) {
300 pci_disable_device(pci);
301 kfree(chip);
302 return err;
303 }
304 chip->iobase_phys = pci_resource_start(pci, 0);
305 chip->iobase_virt =
306 ioremap_nocache(chip->iobase_phys,
307 pci_resource_len(pci, 0));
308
309 if (chip->iobase_virt == NULL) {
310 printk(KERN_ERR "aw2: unable to remap memory region");
311 pci_release_regions(pci);
312 pci_disable_device(pci);
313 kfree(chip);
314 return -ENOMEM;
315 }
316
317 /* (2) initialization of the chip hardware */
318 snd_aw2_saa7146_setup(&chip->saa7146, chip->iobase_virt);
319
320 if (request_irq(pci->irq, snd_aw2_saa7146_interrupt,
321 IRQF_SHARED, KBUILD_MODNAME, chip)) {
322 printk(KERN_ERR "aw2: Cannot grab irq %d\n", pci->irq);
323
324 iounmap(chip->iobase_virt);
325 pci_release_regions(chip->pci);
326 pci_disable_device(chip->pci);
327 kfree(chip);
328 return -EBUSY;
329 }
330 chip->irq = pci->irq;
331
332 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
333 if (err < 0) {
334 free_irq(chip->irq, (void *)chip);
335 iounmap(chip->iobase_virt);
336 pci_release_regions(chip->pci);
337 pci_disable_device(chip->pci);
338 kfree(chip);
339 return err;
340 }
341
342 snd_card_set_dev(card, &pci->dev);
343 *rchip = chip;
344
345 printk(KERN_INFO
346 "Audiowerk 2 sound card (saa7146 chipset) detected and "
347 "managed\n");
348 return 0;
349 }
350
351 /* constructor */
snd_aw2_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)352 static int __devinit snd_aw2_probe(struct pci_dev *pci,
353 const struct pci_device_id *pci_id)
354 {
355 static int dev;
356 struct snd_card *card;
357 struct aw2 *chip;
358 int err;
359
360 /* (1) Continue if device is not enabled, else inc dev */
361 if (dev >= SNDRV_CARDS)
362 return -ENODEV;
363 if (!enable[dev]) {
364 dev++;
365 return -ENOENT;
366 }
367
368 /* (2) Create card instance */
369 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
370 if (err < 0)
371 return err;
372
373 /* (3) Create main component */
374 err = snd_aw2_create(card, pci, &chip);
375 if (err < 0) {
376 snd_card_free(card);
377 return err;
378 }
379
380 /* initialize mutex */
381 mutex_init(&chip->mtx);
382 /* init spinlock */
383 spin_lock_init(&chip->reg_lock);
384 /* (4) Define driver ID and name string */
385 strcpy(card->driver, "aw2");
386 strcpy(card->shortname, "Audiowerk2");
387
388 sprintf(card->longname, "%s with SAA7146 irq %i",
389 card->shortname, chip->irq);
390
391 /* (5) Create other components */
392 snd_aw2_new_pcm(chip);
393
394 /* (6) Register card instance */
395 err = snd_card_register(card);
396 if (err < 0) {
397 snd_card_free(card);
398 return err;
399 }
400
401 /* (7) Set PCI driver data */
402 pci_set_drvdata(pci, card);
403
404 dev++;
405 return 0;
406 }
407
408 /* destructor */
snd_aw2_remove(struct pci_dev * pci)409 static void __devexit snd_aw2_remove(struct pci_dev *pci)
410 {
411 snd_card_free(pci_get_drvdata(pci));
412 pci_set_drvdata(pci, NULL);
413 }
414
415 /* open callback */
snd_aw2_pcm_playback_open(struct snd_pcm_substream * substream)416 static int snd_aw2_pcm_playback_open(struct snd_pcm_substream *substream)
417 {
418 struct snd_pcm_runtime *runtime = substream->runtime;
419
420 snd_printdd(KERN_DEBUG "aw2: Playback_open\n");
421 runtime->hw = snd_aw2_playback_hw;
422 return 0;
423 }
424
425 /* close callback */
snd_aw2_pcm_playback_close(struct snd_pcm_substream * substream)426 static int snd_aw2_pcm_playback_close(struct snd_pcm_substream *substream)
427 {
428 return 0;
429
430 }
431
snd_aw2_pcm_capture_open(struct snd_pcm_substream * substream)432 static int snd_aw2_pcm_capture_open(struct snd_pcm_substream *substream)
433 {
434 struct snd_pcm_runtime *runtime = substream->runtime;
435
436 snd_printdd(KERN_DEBUG "aw2: Capture_open\n");
437 runtime->hw = snd_aw2_capture_hw;
438 return 0;
439 }
440
441 /* close callback */
snd_aw2_pcm_capture_close(struct snd_pcm_substream * substream)442 static int snd_aw2_pcm_capture_close(struct snd_pcm_substream *substream)
443 {
444 /* TODO: something to do ? */
445 return 0;
446 }
447
448 /* hw_params callback */
snd_aw2_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)449 static int snd_aw2_pcm_hw_params(struct snd_pcm_substream *substream,
450 struct snd_pcm_hw_params *hw_params)
451 {
452 return snd_pcm_lib_malloc_pages(substream,
453 params_buffer_bytes(hw_params));
454 }
455
456 /* hw_free callback */
snd_aw2_pcm_hw_free(struct snd_pcm_substream * substream)457 static int snd_aw2_pcm_hw_free(struct snd_pcm_substream *substream)
458 {
459 return snd_pcm_lib_free_pages(substream);
460 }
461
462 /* prepare callback for playback */
snd_aw2_pcm_prepare_playback(struct snd_pcm_substream * substream)463 static int snd_aw2_pcm_prepare_playback(struct snd_pcm_substream *substream)
464 {
465 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
466 struct aw2 *chip = pcm_device->chip;
467 struct snd_pcm_runtime *runtime = substream->runtime;
468 unsigned long period_size, buffer_size;
469
470 mutex_lock(&chip->mtx);
471
472 period_size = snd_pcm_lib_period_bytes(substream);
473 buffer_size = snd_pcm_lib_buffer_bytes(substream);
474
475 snd_aw2_saa7146_pcm_init_playback(&chip->saa7146,
476 pcm_device->stream_number,
477 runtime->dma_addr, period_size,
478 buffer_size);
479
480 /* Define Interrupt callback */
481 snd_aw2_saa7146_define_it_playback_callback(pcm_device->stream_number,
482 (snd_aw2_saa7146_it_cb)
483 snd_pcm_period_elapsed,
484 (void *)substream);
485
486 mutex_unlock(&chip->mtx);
487
488 return 0;
489 }
490
491 /* prepare callback for capture */
snd_aw2_pcm_prepare_capture(struct snd_pcm_substream * substream)492 static int snd_aw2_pcm_prepare_capture(struct snd_pcm_substream *substream)
493 {
494 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
495 struct aw2 *chip = pcm_device->chip;
496 struct snd_pcm_runtime *runtime = substream->runtime;
497 unsigned long period_size, buffer_size;
498
499 mutex_lock(&chip->mtx);
500
501 period_size = snd_pcm_lib_period_bytes(substream);
502 buffer_size = snd_pcm_lib_buffer_bytes(substream);
503
504 snd_aw2_saa7146_pcm_init_capture(&chip->saa7146,
505 pcm_device->stream_number,
506 runtime->dma_addr, period_size,
507 buffer_size);
508
509 /* Define Interrupt callback */
510 snd_aw2_saa7146_define_it_capture_callback(pcm_device->stream_number,
511 (snd_aw2_saa7146_it_cb)
512 snd_pcm_period_elapsed,
513 (void *)substream);
514
515 mutex_unlock(&chip->mtx);
516
517 return 0;
518 }
519
520 /* playback trigger callback */
snd_aw2_pcm_trigger_playback(struct snd_pcm_substream * substream,int cmd)521 static int snd_aw2_pcm_trigger_playback(struct snd_pcm_substream *substream,
522 int cmd)
523 {
524 int status = 0;
525 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
526 struct aw2 *chip = pcm_device->chip;
527 spin_lock(&chip->reg_lock);
528 switch (cmd) {
529 case SNDRV_PCM_TRIGGER_START:
530 snd_aw2_saa7146_pcm_trigger_start_playback(&chip->saa7146,
531 pcm_device->
532 stream_number);
533 break;
534 case SNDRV_PCM_TRIGGER_STOP:
535 snd_aw2_saa7146_pcm_trigger_stop_playback(&chip->saa7146,
536 pcm_device->
537 stream_number);
538 break;
539 default:
540 status = -EINVAL;
541 }
542 spin_unlock(&chip->reg_lock);
543 return status;
544 }
545
546 /* capture trigger callback */
snd_aw2_pcm_trigger_capture(struct snd_pcm_substream * substream,int cmd)547 static int snd_aw2_pcm_trigger_capture(struct snd_pcm_substream *substream,
548 int cmd)
549 {
550 int status = 0;
551 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
552 struct aw2 *chip = pcm_device->chip;
553 spin_lock(&chip->reg_lock);
554 switch (cmd) {
555 case SNDRV_PCM_TRIGGER_START:
556 snd_aw2_saa7146_pcm_trigger_start_capture(&chip->saa7146,
557 pcm_device->
558 stream_number);
559 break;
560 case SNDRV_PCM_TRIGGER_STOP:
561 snd_aw2_saa7146_pcm_trigger_stop_capture(&chip->saa7146,
562 pcm_device->
563 stream_number);
564 break;
565 default:
566 status = -EINVAL;
567 }
568 spin_unlock(&chip->reg_lock);
569 return status;
570 }
571
572 /* playback pointer callback */
snd_aw2_pcm_pointer_playback(struct snd_pcm_substream * substream)573 static snd_pcm_uframes_t snd_aw2_pcm_pointer_playback(struct snd_pcm_substream
574 *substream)
575 {
576 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
577 struct aw2 *chip = pcm_device->chip;
578 unsigned int current_ptr;
579
580 /* get the current hardware pointer */
581 struct snd_pcm_runtime *runtime = substream->runtime;
582 current_ptr =
583 snd_aw2_saa7146_get_hw_ptr_playback(&chip->saa7146,
584 pcm_device->stream_number,
585 runtime->dma_area,
586 runtime->buffer_size);
587
588 return bytes_to_frames(substream->runtime, current_ptr);
589 }
590
591 /* capture pointer callback */
snd_aw2_pcm_pointer_capture(struct snd_pcm_substream * substream)592 static snd_pcm_uframes_t snd_aw2_pcm_pointer_capture(struct snd_pcm_substream
593 *substream)
594 {
595 struct aw2_pcm_device *pcm_device = snd_pcm_substream_chip(substream);
596 struct aw2 *chip = pcm_device->chip;
597 unsigned int current_ptr;
598
599 /* get the current hardware pointer */
600 struct snd_pcm_runtime *runtime = substream->runtime;
601 current_ptr =
602 snd_aw2_saa7146_get_hw_ptr_capture(&chip->saa7146,
603 pcm_device->stream_number,
604 runtime->dma_area,
605 runtime->buffer_size);
606
607 return bytes_to_frames(substream->runtime, current_ptr);
608 }
609
610 /* create a pcm device */
snd_aw2_new_pcm(struct aw2 * chip)611 static int __devinit snd_aw2_new_pcm(struct aw2 *chip)
612 {
613 struct snd_pcm *pcm_playback_ana;
614 struct snd_pcm *pcm_playback_num;
615 struct snd_pcm *pcm_capture;
616 struct aw2_pcm_device *pcm_device;
617 int err = 0;
618
619 /* Create new Alsa PCM device */
620
621 err = snd_pcm_new(chip->card, "Audiowerk2 analog playback", 0, 1, 0,
622 &pcm_playback_ana);
623 if (err < 0) {
624 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
625 return err;
626 }
627
628 /* Creation ok */
629 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_ANA];
630
631 /* Set PCM device name */
632 strcpy(pcm_playback_ana->name, "Analog playback");
633 /* Associate private data to PCM device */
634 pcm_playback_ana->private_data = pcm_device;
635 /* set operators of PCM device */
636 snd_pcm_set_ops(pcm_playback_ana, SNDRV_PCM_STREAM_PLAYBACK,
637 &snd_aw2_playback_ops);
638 /* store PCM device */
639 pcm_device->pcm = pcm_playback_ana;
640 /* give base chip pointer to our internal pcm device
641 structure */
642 pcm_device->chip = chip;
643 /* Give stream number to PCM device */
644 pcm_device->stream_number = NUM_STREAM_PLAYBACK_ANA;
645
646 /* pre-allocation of buffers */
647 /* Preallocate continuous pages. */
648 err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_ana,
649 SNDRV_DMA_TYPE_DEV,
650 snd_dma_pci_data
651 (chip->pci),
652 64 * 1024, 64 * 1024);
653 if (err)
654 printk(KERN_ERR "aw2: snd_pcm_lib_preallocate_pages_for_all "
655 "error (0x%X)\n", err);
656
657 err = snd_pcm_new(chip->card, "Audiowerk2 digital playback", 1, 1, 0,
658 &pcm_playback_num);
659
660 if (err < 0) {
661 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
662 return err;
663 }
664 /* Creation ok */
665 pcm_device = &chip->device_playback[NUM_STREAM_PLAYBACK_DIG];
666
667 /* Set PCM device name */
668 strcpy(pcm_playback_num->name, "Digital playback");
669 /* Associate private data to PCM device */
670 pcm_playback_num->private_data = pcm_device;
671 /* set operators of PCM device */
672 snd_pcm_set_ops(pcm_playback_num, SNDRV_PCM_STREAM_PLAYBACK,
673 &snd_aw2_playback_ops);
674 /* store PCM device */
675 pcm_device->pcm = pcm_playback_num;
676 /* give base chip pointer to our internal pcm device
677 structure */
678 pcm_device->chip = chip;
679 /* Give stream number to PCM device */
680 pcm_device->stream_number = NUM_STREAM_PLAYBACK_DIG;
681
682 /* pre-allocation of buffers */
683 /* Preallocate continuous pages. */
684 err = snd_pcm_lib_preallocate_pages_for_all(pcm_playback_num,
685 SNDRV_DMA_TYPE_DEV,
686 snd_dma_pci_data
687 (chip->pci),
688 64 * 1024, 64 * 1024);
689 if (err)
690 printk(KERN_ERR
691 "aw2: snd_pcm_lib_preallocate_pages_for_all error "
692 "(0x%X)\n", err);
693
694
695
696 err = snd_pcm_new(chip->card, "Audiowerk2 capture", 2, 0, 1,
697 &pcm_capture);
698
699 if (err < 0) {
700 printk(KERN_ERR "aw2: snd_pcm_new error (0x%X)\n", err);
701 return err;
702 }
703
704 /* Creation ok */
705 pcm_device = &chip->device_capture[NUM_STREAM_CAPTURE_ANA];
706
707 /* Set PCM device name */
708 strcpy(pcm_capture->name, "Capture");
709 /* Associate private data to PCM device */
710 pcm_capture->private_data = pcm_device;
711 /* set operators of PCM device */
712 snd_pcm_set_ops(pcm_capture, SNDRV_PCM_STREAM_CAPTURE,
713 &snd_aw2_capture_ops);
714 /* store PCM device */
715 pcm_device->pcm = pcm_capture;
716 /* give base chip pointer to our internal pcm device
717 structure */
718 pcm_device->chip = chip;
719 /* Give stream number to PCM device */
720 pcm_device->stream_number = NUM_STREAM_CAPTURE_ANA;
721
722 /* pre-allocation of buffers */
723 /* Preallocate continuous pages. */
724 err = snd_pcm_lib_preallocate_pages_for_all(pcm_capture,
725 SNDRV_DMA_TYPE_DEV,
726 snd_dma_pci_data
727 (chip->pci),
728 64 * 1024, 64 * 1024);
729 if (err)
730 printk(KERN_ERR
731 "aw2: snd_pcm_lib_preallocate_pages_for_all error "
732 "(0x%X)\n", err);
733
734
735 /* Create control */
736 err = snd_ctl_add(chip->card, snd_ctl_new1(&aw2_control, chip));
737 if (err < 0) {
738 printk(KERN_ERR "aw2: snd_ctl_add error (0x%X)\n", err);
739 return err;
740 }
741
742 return 0;
743 }
744
snd_aw2_control_switch_capture_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)745 static int snd_aw2_control_switch_capture_info(struct snd_kcontrol *kcontrol,
746 struct snd_ctl_elem_info *uinfo)
747 {
748 static char *texts[2] = {
749 "Analog", "Digital"
750 };
751 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
752 uinfo->count = 1;
753 uinfo->value.enumerated.items = 2;
754 if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) {
755 uinfo->value.enumerated.item =
756 uinfo->value.enumerated.items - 1;
757 }
758 strcpy(uinfo->value.enumerated.name,
759 texts[uinfo->value.enumerated.item]);
760 return 0;
761 }
762
snd_aw2_control_switch_capture_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)763 static int snd_aw2_control_switch_capture_get(struct snd_kcontrol *kcontrol,
764 struct snd_ctl_elem_value
765 *ucontrol)
766 {
767 struct aw2 *chip = snd_kcontrol_chip(kcontrol);
768 if (snd_aw2_saa7146_is_using_digital_input(&chip->saa7146))
769 ucontrol->value.enumerated.item[0] = CTL_ROUTE_DIGITAL;
770 else
771 ucontrol->value.enumerated.item[0] = CTL_ROUTE_ANALOG;
772 return 0;
773 }
774
snd_aw2_control_switch_capture_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)775 static int snd_aw2_control_switch_capture_put(struct snd_kcontrol *kcontrol,
776 struct snd_ctl_elem_value
777 *ucontrol)
778 {
779 struct aw2 *chip = snd_kcontrol_chip(kcontrol);
780 int changed = 0;
781 int is_disgital =
782 snd_aw2_saa7146_is_using_digital_input(&chip->saa7146);
783
784 if (((ucontrol->value.integer.value[0] == CTL_ROUTE_DIGITAL)
785 && !is_disgital)
786 || ((ucontrol->value.integer.value[0] == CTL_ROUTE_ANALOG)
787 && is_disgital)) {
788 snd_aw2_saa7146_use_digital_input(&chip->saa7146, !is_disgital);
789 changed = 1;
790 }
791 return changed;
792 }
793