ia64/linux-2.6.18-xen.hg

view sound/i2c/other/ak4114.c @ 782:9ab1c319531f

merge with linux-2.6.18-xen.hg
author Isaku Yamahata <yamahata@valinux.co.jp>
date Wed Jan 28 13:07:23 2009 +0900 (2009-01-28)
parents 831230e53067
children
line source
1 /*
2 * Routines for control of the AK4114 via I2C and 4-wire serial interface
3 * IEC958 (S/PDIF) receiver by Asahi Kasei
4 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
5 *
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program 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 this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
23 #include <sound/driver.h>
24 #include <linux/slab.h>
25 #include <linux/delay.h>
26 #include <sound/core.h>
27 #include <sound/control.h>
28 #include <sound/pcm.h>
29 #include <sound/ak4114.h>
30 #include <sound/asoundef.h>
32 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
33 MODULE_DESCRIPTION("AK4114 IEC958 (S/PDIF) receiver by Asahi Kasei");
34 MODULE_LICENSE("GPL");
36 #define AK4114_ADDR 0x00 /* fixed address */
38 static void ak4114_stats(void *);
40 static void reg_write(struct ak4114 *ak4114, unsigned char reg, unsigned char val)
41 {
42 ak4114->write(ak4114->private_data, reg, val);
43 if (reg <= AK4114_REG_INT1_MASK)
44 ak4114->regmap[reg] = val;
45 else if (reg >= AK4114_REG_RXCSB0 && reg <= AK4114_REG_TXCSB4)
46 ak4114->txcsb[reg-AK4114_REG_RXCSB0] = val;
47 }
49 static inline unsigned char reg_read(struct ak4114 *ak4114, unsigned char reg)
50 {
51 return ak4114->read(ak4114->private_data, reg);
52 }
54 #if 0
55 static void reg_dump(struct ak4114 *ak4114)
56 {
57 int i;
59 printk(KERN_DEBUG "AK4114 REG DUMP:\n");
60 for (i = 0; i < 0x20; i++)
61 printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < sizeof(ak4114->regmap) ? ak4114->regmap[i] : 0);
62 }
63 #endif
65 static void snd_ak4114_free(struct ak4114 *chip)
66 {
67 chip->init = 1; /* don't schedule new work */
68 mb();
69 if (chip->workqueue != NULL) {
70 flush_workqueue(chip->workqueue);
71 destroy_workqueue(chip->workqueue);
72 }
73 kfree(chip);
74 }
76 static int snd_ak4114_dev_free(struct snd_device *device)
77 {
78 struct ak4114 *chip = device->device_data;
79 snd_ak4114_free(chip);
80 return 0;
81 }
83 int snd_ak4114_create(struct snd_card *card,
84 ak4114_read_t *read, ak4114_write_t *write,
85 unsigned char pgm[7], unsigned char txcsb[5],
86 void *private_data, struct ak4114 **r_ak4114)
87 {
88 struct ak4114 *chip;
89 int err = 0;
90 unsigned char reg;
91 static struct snd_device_ops ops = {
92 .dev_free = snd_ak4114_dev_free,
93 };
95 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
96 if (chip == NULL)
97 return -ENOMEM;
98 spin_lock_init(&chip->lock);
99 chip->card = card;
100 chip->read = read;
101 chip->write = write;
102 chip->private_data = private_data;
104 for (reg = 0; reg < 7; reg++)
105 chip->regmap[reg] = pgm[reg];
106 for (reg = 0; reg < 5; reg++)
107 chip->txcsb[reg] = txcsb[reg];
109 chip->workqueue = create_workqueue("snd-ak4114");
110 if (chip->workqueue == NULL) {
111 kfree(chip);
112 return -ENOMEM;
113 }
115 snd_ak4114_reinit(chip);
117 chip->rcs0 = reg_read(chip, AK4114_REG_RCS0) & ~(AK4114_QINT | AK4114_CINT);
118 chip->rcs1 = reg_read(chip, AK4114_REG_RCS1);
120 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
121 goto __fail;
123 if (r_ak4114)
124 *r_ak4114 = chip;
125 return 0;
127 __fail:
128 snd_ak4114_free(chip);
129 return err < 0 ? err : -EIO;
130 }
132 void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val)
133 {
134 if (reg <= AK4114_REG_INT1_MASK)
135 reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
136 else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4)
137 reg_write(chip, reg, (chip->txcsb[reg] & ~mask) | val);
138 }
140 void snd_ak4114_reinit(struct ak4114 *chip)
141 {
142 unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg;
144 chip->init = 1;
145 mb();
146 flush_workqueue(chip->workqueue);
147 /* bring the chip to reset state and powerdown state */
148 reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN));
149 udelay(200);
150 /* release reset, but leave powerdown */
151 reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN);
152 udelay(200);
153 for (reg = 1; reg < 7; reg++)
154 reg_write(chip, reg, chip->regmap[reg]);
155 for (reg = 0; reg < 5; reg++)
156 reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]);
157 /* release powerdown, everything is initialized now */
158 reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN);
159 /* bring up statistics / event queing */
160 chip->init = 0;
161 INIT_WORK(&chip->work, ak4114_stats, chip);
162 queue_delayed_work(chip->workqueue, &chip->work, HZ / 10);
163 }
165 static unsigned int external_rate(unsigned char rcs1)
166 {
167 switch (rcs1 & (AK4114_FS0|AK4114_FS1|AK4114_FS2|AK4114_FS3)) {
168 case AK4114_FS_32000HZ: return 32000;
169 case AK4114_FS_44100HZ: return 44100;
170 case AK4114_FS_48000HZ: return 48000;
171 case AK4114_FS_88200HZ: return 88200;
172 case AK4114_FS_96000HZ: return 96000;
173 case AK4114_FS_176400HZ: return 176400;
174 case AK4114_FS_192000HZ: return 192000;
175 default: return 0;
176 }
177 }
179 static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol,
180 struct snd_ctl_elem_info *uinfo)
181 {
182 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
183 uinfo->count = 1;
184 uinfo->value.integer.min = 0;
185 uinfo->value.integer.max = LONG_MAX;
186 return 0;
187 }
189 static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_elem_value *ucontrol)
191 {
192 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
193 long *ptr;
195 spin_lock_irq(&chip->lock);
196 ptr = (long *)(((char *)chip) + kcontrol->private_value);
197 ucontrol->value.integer.value[0] = *ptr;
198 *ptr = 0;
199 spin_unlock_irq(&chip->lock);
200 return 0;
201 }
203 static int snd_ak4114_in_bit_info(struct snd_kcontrol *kcontrol,
204 struct snd_ctl_elem_info *uinfo)
205 {
206 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
207 uinfo->count = 1;
208 uinfo->value.integer.min = 0;
209 uinfo->value.integer.max = 1;
210 return 0;
211 }
213 static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol,
214 struct snd_ctl_elem_value *ucontrol)
215 {
216 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
217 unsigned char reg = kcontrol->private_value & 0xff;
218 unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
219 unsigned char inv = (kcontrol->private_value >> 31) & 1;
221 ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
222 return 0;
223 }
225 static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol,
226 struct snd_ctl_elem_info *uinfo)
227 {
228 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
229 uinfo->count = 1;
230 uinfo->value.integer.min = 0;
231 uinfo->value.integer.max = 192000;
232 return 0;
233 }
235 static int snd_ak4114_rate_get(struct snd_kcontrol *kcontrol,
236 struct snd_ctl_elem_value *ucontrol)
237 {
238 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
240 ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1));
241 return 0;
242 }
244 static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
245 {
246 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
247 uinfo->count = 1;
248 return 0;
249 }
251 static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol,
252 struct snd_ctl_elem_value *ucontrol)
253 {
254 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
255 unsigned i;
257 for (i = 0; i < AK4114_REG_RXCSB_SIZE; i++)
258 ucontrol->value.iec958.status[i] = reg_read(chip, AK4114_REG_RXCSB0 + i);
259 return 0;
260 }
262 static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol,
263 struct snd_ctl_elem_value *ucontrol)
264 {
265 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
266 unsigned i;
268 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
269 ucontrol->value.iec958.status[i] = chip->txcsb[i];
270 return 0;
271 }
273 static int snd_ak4114_spdif_playback_put(struct snd_kcontrol *kcontrol,
274 struct snd_ctl_elem_value *ucontrol)
275 {
276 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
277 unsigned i;
279 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
280 reg_write(chip, AK4114_REG_TXCSB0 + i, ucontrol->value.iec958.status[i]);
281 return 0;
282 }
284 static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
285 {
286 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
287 uinfo->count = 1;
288 return 0;
289 }
291 static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol,
292 struct snd_ctl_elem_value *ucontrol)
293 {
294 memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE);
295 return 0;
296 }
298 static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
299 {
300 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
301 uinfo->value.integer.min = 0;
302 uinfo->value.integer.max = 0xffff;
303 uinfo->count = 4;
304 return 0;
305 }
307 static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol,
308 struct snd_ctl_elem_value *ucontrol)
309 {
310 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
311 unsigned short tmp;
313 ucontrol->value.integer.value[0] = 0xf8f2;
314 ucontrol->value.integer.value[1] = 0x4e1f;
315 tmp = reg_read(chip, AK4114_REG_Pc0) | (reg_read(chip, AK4114_REG_Pc1) << 8);
316 ucontrol->value.integer.value[2] = tmp;
317 tmp = reg_read(chip, AK4114_REG_Pd0) | (reg_read(chip, AK4114_REG_Pd1) << 8);
318 ucontrol->value.integer.value[3] = tmp;
319 return 0;
320 }
322 static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
323 {
324 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
325 uinfo->count = AK4114_REG_QSUB_SIZE;
326 return 0;
327 }
329 static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol,
330 struct snd_ctl_elem_value *ucontrol)
331 {
332 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
333 unsigned i;
335 for (i = 0; i < AK4114_REG_QSUB_SIZE; i++)
336 ucontrol->value.bytes.data[i] = reg_read(chip, AK4114_REG_QSUB_ADDR + i);
337 return 0;
338 }
340 /* Don't forget to change AK4114_CONTROLS define!!! */
341 static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
342 {
343 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
344 .name = "IEC958 Parity Errors",
345 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
346 .info = snd_ak4114_in_error_info,
347 .get = snd_ak4114_in_error_get,
348 .private_value = offsetof(struct ak4114, parity_errors),
349 },
350 {
351 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
352 .name = "IEC958 V-Bit Errors",
353 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
354 .info = snd_ak4114_in_error_info,
355 .get = snd_ak4114_in_error_get,
356 .private_value = offsetof(struct ak4114, v_bit_errors),
357 },
358 {
359 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
360 .name = "IEC958 C-CRC Errors",
361 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
362 .info = snd_ak4114_in_error_info,
363 .get = snd_ak4114_in_error_get,
364 .private_value = offsetof(struct ak4114, ccrc_errors),
365 },
366 {
367 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
368 .name = "IEC958 Q-CRC Errors",
369 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
370 .info = snd_ak4114_in_error_info,
371 .get = snd_ak4114_in_error_get,
372 .private_value = offsetof(struct ak4114, qcrc_errors),
373 },
374 {
375 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
376 .name = "IEC958 External Rate",
377 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
378 .info = snd_ak4114_rate_info,
379 .get = snd_ak4114_rate_get,
380 },
381 {
382 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
383 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
384 .access = SNDRV_CTL_ELEM_ACCESS_READ,
385 .info = snd_ak4114_spdif_mask_info,
386 .get = snd_ak4114_spdif_mask_get,
387 },
388 {
389 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
390 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
391 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
392 .info = snd_ak4114_spdif_info,
393 .get = snd_ak4114_spdif_playback_get,
394 .put = snd_ak4114_spdif_playback_put,
395 },
396 {
397 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
398 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
399 .access = SNDRV_CTL_ELEM_ACCESS_READ,
400 .info = snd_ak4114_spdif_mask_info,
401 .get = snd_ak4114_spdif_mask_get,
402 },
403 {
404 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
405 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
406 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
407 .info = snd_ak4114_spdif_info,
408 .get = snd_ak4114_spdif_get,
409 },
410 {
411 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
412 .name = "IEC958 Preample Capture Default",
413 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
414 .info = snd_ak4114_spdif_pinfo,
415 .get = snd_ak4114_spdif_pget,
416 },
417 {
418 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
419 .name = "IEC958 Q-subcode Capture Default",
420 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
421 .info = snd_ak4114_spdif_qinfo,
422 .get = snd_ak4114_spdif_qget,
423 },
424 {
425 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
426 .name = "IEC958 Audio",
427 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
428 .info = snd_ak4114_in_bit_info,
429 .get = snd_ak4114_in_bit_get,
430 .private_value = (1<<31) | (1<<8) | AK4114_REG_RCS0,
431 },
432 {
433 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
434 .name = "IEC958 Non-PCM Bitstream",
435 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
436 .info = snd_ak4114_in_bit_info,
437 .get = snd_ak4114_in_bit_get,
438 .private_value = (6<<8) | AK4114_REG_RCS1,
439 },
440 {
441 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
442 .name = "IEC958 DTS Bitstream",
443 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
444 .info = snd_ak4114_in_bit_info,
445 .get = snd_ak4114_in_bit_get,
446 .private_value = (3<<8) | AK4114_REG_RCS1,
447 }
448 };
450 int snd_ak4114_build(struct ak4114 *ak4114,
451 struct snd_pcm_substream *ply_substream,
452 struct snd_pcm_substream *cap_substream)
453 {
454 struct snd_kcontrol *kctl;
455 unsigned int idx;
456 int err;
458 snd_assert(cap_substream, return -EINVAL);
459 ak4114->playback_substream = ply_substream;
460 ak4114->capture_substream = cap_substream;
461 for (idx = 0; idx < AK4114_CONTROLS; idx++) {
462 kctl = snd_ctl_new1(&snd_ak4114_iec958_controls[idx], ak4114);
463 if (kctl == NULL)
464 return -ENOMEM;
465 if (!strstr(kctl->id.name, "Playback")) {
466 if (ply_substream == NULL) {
467 snd_ctl_free_one(kctl);
468 ak4114->kctls[idx] = NULL;
469 continue;
470 }
471 kctl->id.device = ply_substream->pcm->device;
472 kctl->id.subdevice = ply_substream->number;
473 } else {
474 kctl->id.device = cap_substream->pcm->device;
475 kctl->id.subdevice = cap_substream->number;
476 }
477 err = snd_ctl_add(ak4114->card, kctl);
478 if (err < 0)
479 return err;
480 ak4114->kctls[idx] = kctl;
481 }
482 return 0;
483 }
485 int snd_ak4114_external_rate(struct ak4114 *ak4114)
486 {
487 unsigned char rcs1;
489 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
490 return external_rate(rcs1);
491 }
493 int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
494 {
495 struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL;
496 unsigned long _flags;
497 int res = 0;
498 unsigned char rcs0, rcs1;
499 unsigned char c0, c1;
501 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
502 if (flags & AK4114_CHECK_NO_STAT)
503 goto __rate;
504 rcs0 = reg_read(ak4114, AK4114_REG_RCS0);
505 spin_lock_irqsave(&ak4114->lock, _flags);
506 if (rcs0 & AK4114_PAR)
507 ak4114->parity_errors++;
508 if (rcs1 & AK4114_V)
509 ak4114->v_bit_errors++;
510 if (rcs1 & AK4114_CCRC)
511 ak4114->ccrc_errors++;
512 if (rcs1 & AK4114_QCRC)
513 ak4114->qcrc_errors++;
514 c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^
515 (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK));
516 c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0);
517 ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT);
518 ak4114->rcs1 = rcs1;
519 spin_unlock_irqrestore(&ak4114->lock, _flags);
521 if (rcs0 & AK4114_PAR)
522 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[0]->id);
523 if (rcs0 & AK4114_V)
524 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[1]->id);
525 if (rcs1 & AK4114_CCRC)
526 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[2]->id);
527 if (rcs1 & AK4114_QCRC)
528 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[3]->id);
530 /* rate change */
531 if (c1 & 0xf0)
532 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[4]->id);
534 if ((c0 & AK4114_PEM) | (c0 & AK4114_CINT))
535 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[9]->id);
536 if (c0 & AK4114_QINT)
537 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[10]->id);
539 if (c0 & AK4114_AUDION)
540 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[11]->id);
541 if (c0 & AK4114_AUTO)
542 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[12]->id);
543 if (c0 & AK4114_DTSCD)
544 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[13]->id);
546 if (ak4114->change_callback && (c0 | c1) != 0)
547 ak4114->change_callback(ak4114, c0, c1);
549 __rate:
550 /* compare rate */
551 res = external_rate(rcs1);
552 if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) {
553 snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags);
554 if (snd_pcm_running(ak4114->capture_substream)) {
555 // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
556 snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING);
557 res = 1;
558 }
559 snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags);
560 }
561 return res;
562 }
564 static void ak4114_stats(void *data)
565 {
566 struct ak4114 *chip = (struct ak4114 *)data;
568 if (chip->init)
569 return;
570 snd_ak4114_check_rate_and_errors(chip, 0);
571 queue_delayed_work(chip->workqueue, &chip->work, HZ / 10);
572 }
574 EXPORT_SYMBOL(snd_ak4114_create);
575 EXPORT_SYMBOL(snd_ak4114_reg_write);
576 EXPORT_SYMBOL(snd_ak4114_reinit);
577 EXPORT_SYMBOL(snd_ak4114_build);
578 EXPORT_SYMBOL(snd_ak4114_external_rate);
579 EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);