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[ALSA] Remove delayed work properly at free and suspend
[deliverable/linux.git] / sound / i2c / other / ak4114.c
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 */
22
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>
31
32 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
33 MODULE_DESCRIPTION("AK4114 IEC958 (S/PDIF) receiver by Asahi Kasei");
34 MODULE_LICENSE("GPL");
35
36 #define AK4114_ADDR 0x00 /* fixed address */
37
38 static void ak4114_stats(struct work_struct *work);
39
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 }
48
49 static inline unsigned char reg_read(struct ak4114 *ak4114, unsigned char reg)
50 {
51 return ak4114->read(ak4114->private_data, reg);
52 }
53
54 #if 0
55 static void reg_dump(struct ak4114 *ak4114)
56 {
57 int i;
58
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
64
65 static void snd_ak4114_free(struct ak4114 *chip)
66 {
67 chip->init = 1; /* don't schedule new work */
68 mb();
69 cancel_delayed_work(&chip->work);
70 flush_scheduled_work();
71 kfree(chip);
72 }
73
74 static int snd_ak4114_dev_free(struct snd_device *device)
75 {
76 struct ak4114 *chip = device->device_data;
77 snd_ak4114_free(chip);
78 return 0;
79 }
80
81 int snd_ak4114_create(struct snd_card *card,
82 ak4114_read_t *read, ak4114_write_t *write,
83 const unsigned char pgm[7], const unsigned char txcsb[5],
84 void *private_data, struct ak4114 **r_ak4114)
85 {
86 struct ak4114 *chip;
87 int err = 0;
88 unsigned char reg;
89 static struct snd_device_ops ops = {
90 .dev_free = snd_ak4114_dev_free,
91 };
92
93 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
94 if (chip == NULL)
95 return -ENOMEM;
96 spin_lock_init(&chip->lock);
97 chip->card = card;
98 chip->read = read;
99 chip->write = write;
100 chip->private_data = private_data;
101 INIT_DELAYED_WORK(&chip->work, ak4114_stats);
102
103 for (reg = 0; reg < 7; reg++)
104 chip->regmap[reg] = pgm[reg];
105 for (reg = 0; reg < 5; reg++)
106 chip->txcsb[reg] = txcsb[reg];
107
108 snd_ak4114_reinit(chip);
109
110 chip->rcs0 = reg_read(chip, AK4114_REG_RCS0) & ~(AK4114_QINT | AK4114_CINT);
111 chip->rcs1 = reg_read(chip, AK4114_REG_RCS1);
112
113 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
114 goto __fail;
115
116 if (r_ak4114)
117 *r_ak4114 = chip;
118 return 0;
119
120 __fail:
121 snd_ak4114_free(chip);
122 return err < 0 ? err : -EIO;
123 }
124
125 void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val)
126 {
127 if (reg <= AK4114_REG_INT1_MASK)
128 reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
129 else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4)
130 reg_write(chip, reg, (chip->txcsb[reg] & ~mask) | val);
131 }
132
133 void snd_ak4114_reinit(struct ak4114 *chip)
134 {
135 unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg;
136
137 chip->init = 1;
138 mb();
139 flush_scheduled_work();
140 /* bring the chip to reset state and powerdown state */
141 reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN));
142 udelay(200);
143 /* release reset, but leave powerdown */
144 reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN);
145 udelay(200);
146 for (reg = 1; reg < 7; reg++)
147 reg_write(chip, reg, chip->regmap[reg]);
148 for (reg = 0; reg < 5; reg++)
149 reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]);
150 /* release powerdown, everything is initialized now */
151 reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN);
152 /* bring up statistics / event queing */
153 chip->init = 0;
154 schedule_delayed_work(&chip->work, HZ / 10);
155 }
156
157 static unsigned int external_rate(unsigned char rcs1)
158 {
159 switch (rcs1 & (AK4114_FS0|AK4114_FS1|AK4114_FS2|AK4114_FS3)) {
160 case AK4114_FS_32000HZ: return 32000;
161 case AK4114_FS_44100HZ: return 44100;
162 case AK4114_FS_48000HZ: return 48000;
163 case AK4114_FS_88200HZ: return 88200;
164 case AK4114_FS_96000HZ: return 96000;
165 case AK4114_FS_176400HZ: return 176400;
166 case AK4114_FS_192000HZ: return 192000;
167 default: return 0;
168 }
169 }
170
171 static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol,
172 struct snd_ctl_elem_info *uinfo)
173 {
174 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
175 uinfo->count = 1;
176 uinfo->value.integer.min = 0;
177 uinfo->value.integer.max = LONG_MAX;
178 return 0;
179 }
180
181 static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol,
182 struct snd_ctl_elem_value *ucontrol)
183 {
184 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
185 long *ptr;
186
187 spin_lock_irq(&chip->lock);
188 ptr = (long *)(((char *)chip) + kcontrol->private_value);
189 ucontrol->value.integer.value[0] = *ptr;
190 *ptr = 0;
191 spin_unlock_irq(&chip->lock);
192 return 0;
193 }
194
195 static int snd_ak4114_in_bit_info(struct snd_kcontrol *kcontrol,
196 struct snd_ctl_elem_info *uinfo)
197 {
198 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
199 uinfo->count = 1;
200 uinfo->value.integer.min = 0;
201 uinfo->value.integer.max = 1;
202 return 0;
203 }
204
205 static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol,
206 struct snd_ctl_elem_value *ucontrol)
207 {
208 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
209 unsigned char reg = kcontrol->private_value & 0xff;
210 unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
211 unsigned char inv = (kcontrol->private_value >> 31) & 1;
212
213 ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
214 return 0;
215 }
216
217 static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol,
218 struct snd_ctl_elem_info *uinfo)
219 {
220 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
221 uinfo->count = 1;
222 uinfo->value.integer.min = 0;
223 uinfo->value.integer.max = 192000;
224 return 0;
225 }
226
227 static int snd_ak4114_rate_get(struct snd_kcontrol *kcontrol,
228 struct snd_ctl_elem_value *ucontrol)
229 {
230 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
231
232 ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1));
233 return 0;
234 }
235
236 static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
237 {
238 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
239 uinfo->count = 1;
240 return 0;
241 }
242
243 static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol,
244 struct snd_ctl_elem_value *ucontrol)
245 {
246 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
247 unsigned i;
248
249 for (i = 0; i < AK4114_REG_RXCSB_SIZE; i++)
250 ucontrol->value.iec958.status[i] = reg_read(chip, AK4114_REG_RXCSB0 + i);
251 return 0;
252 }
253
254 static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol,
255 struct snd_ctl_elem_value *ucontrol)
256 {
257 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
258 unsigned i;
259
260 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
261 ucontrol->value.iec958.status[i] = chip->txcsb[i];
262 return 0;
263 }
264
265 static int snd_ak4114_spdif_playback_put(struct snd_kcontrol *kcontrol,
266 struct snd_ctl_elem_value *ucontrol)
267 {
268 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
269 unsigned i;
270
271 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
272 reg_write(chip, AK4114_REG_TXCSB0 + i, ucontrol->value.iec958.status[i]);
273 return 0;
274 }
275
276 static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
277 {
278 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
279 uinfo->count = 1;
280 return 0;
281 }
282
283 static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol,
284 struct snd_ctl_elem_value *ucontrol)
285 {
286 memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE);
287 return 0;
288 }
289
290 static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
291 {
292 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
293 uinfo->value.integer.min = 0;
294 uinfo->value.integer.max = 0xffff;
295 uinfo->count = 4;
296 return 0;
297 }
298
299 static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol,
300 struct snd_ctl_elem_value *ucontrol)
301 {
302 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
303 unsigned short tmp;
304
305 ucontrol->value.integer.value[0] = 0xf8f2;
306 ucontrol->value.integer.value[1] = 0x4e1f;
307 tmp = reg_read(chip, AK4114_REG_Pc0) | (reg_read(chip, AK4114_REG_Pc1) << 8);
308 ucontrol->value.integer.value[2] = tmp;
309 tmp = reg_read(chip, AK4114_REG_Pd0) | (reg_read(chip, AK4114_REG_Pd1) << 8);
310 ucontrol->value.integer.value[3] = tmp;
311 return 0;
312 }
313
314 static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
315 {
316 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
317 uinfo->count = AK4114_REG_QSUB_SIZE;
318 return 0;
319 }
320
321 static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol,
322 struct snd_ctl_elem_value *ucontrol)
323 {
324 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
325 unsigned i;
326
327 for (i = 0; i < AK4114_REG_QSUB_SIZE; i++)
328 ucontrol->value.bytes.data[i] = reg_read(chip, AK4114_REG_QSUB_ADDR + i);
329 return 0;
330 }
331
332 /* Don't forget to change AK4114_CONTROLS define!!! */
333 static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
334 {
335 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
336 .name = "IEC958 Parity Errors",
337 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
338 .info = snd_ak4114_in_error_info,
339 .get = snd_ak4114_in_error_get,
340 .private_value = offsetof(struct ak4114, parity_errors),
341 },
342 {
343 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
344 .name = "IEC958 V-Bit 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, v_bit_errors),
349 },
350 {
351 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
352 .name = "IEC958 C-CRC 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, ccrc_errors),
357 },
358 {
359 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
360 .name = "IEC958 Q-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, qcrc_errors),
365 },
366 {
367 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
368 .name = "IEC958 External Rate",
369 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
370 .info = snd_ak4114_rate_info,
371 .get = snd_ak4114_rate_get,
372 },
373 {
374 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
375 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
376 .access = SNDRV_CTL_ELEM_ACCESS_READ,
377 .info = snd_ak4114_spdif_mask_info,
378 .get = snd_ak4114_spdif_mask_get,
379 },
380 {
381 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
382 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
383 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
384 .info = snd_ak4114_spdif_info,
385 .get = snd_ak4114_spdif_playback_get,
386 .put = snd_ak4114_spdif_playback_put,
387 },
388 {
389 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
390 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
391 .access = SNDRV_CTL_ELEM_ACCESS_READ,
392 .info = snd_ak4114_spdif_mask_info,
393 .get = snd_ak4114_spdif_mask_get,
394 },
395 {
396 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
397 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
398 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
399 .info = snd_ak4114_spdif_info,
400 .get = snd_ak4114_spdif_get,
401 },
402 {
403 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
404 .name = "IEC958 Preample Capture Default",
405 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
406 .info = snd_ak4114_spdif_pinfo,
407 .get = snd_ak4114_spdif_pget,
408 },
409 {
410 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
411 .name = "IEC958 Q-subcode Capture Default",
412 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
413 .info = snd_ak4114_spdif_qinfo,
414 .get = snd_ak4114_spdif_qget,
415 },
416 {
417 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
418 .name = "IEC958 Audio",
419 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
420 .info = snd_ak4114_in_bit_info,
421 .get = snd_ak4114_in_bit_get,
422 .private_value = (1<<31) | (1<<8) | AK4114_REG_RCS0,
423 },
424 {
425 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
426 .name = "IEC958 Non-PCM Bitstream",
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 = (6<<8) | AK4114_REG_RCS1,
431 },
432 {
433 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
434 .name = "IEC958 DTS 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 = (3<<8) | AK4114_REG_RCS1,
439 }
440 };
441
442 int snd_ak4114_build(struct ak4114 *ak4114,
443 struct snd_pcm_substream *ply_substream,
444 struct snd_pcm_substream *cap_substream)
445 {
446 struct snd_kcontrol *kctl;
447 unsigned int idx;
448 int err;
449
450 snd_assert(cap_substream, return -EINVAL);
451 ak4114->playback_substream = ply_substream;
452 ak4114->capture_substream = cap_substream;
453 for (idx = 0; idx < AK4114_CONTROLS; idx++) {
454 kctl = snd_ctl_new1(&snd_ak4114_iec958_controls[idx], ak4114);
455 if (kctl == NULL)
456 return -ENOMEM;
457 if (!strstr(kctl->id.name, "Playback")) {
458 if (ply_substream == NULL) {
459 snd_ctl_free_one(kctl);
460 ak4114->kctls[idx] = NULL;
461 continue;
462 }
463 kctl->id.device = ply_substream->pcm->device;
464 kctl->id.subdevice = ply_substream->number;
465 } else {
466 kctl->id.device = cap_substream->pcm->device;
467 kctl->id.subdevice = cap_substream->number;
468 }
469 err = snd_ctl_add(ak4114->card, kctl);
470 if (err < 0)
471 return err;
472 ak4114->kctls[idx] = kctl;
473 }
474 return 0;
475 }
476
477 int snd_ak4114_external_rate(struct ak4114 *ak4114)
478 {
479 unsigned char rcs1;
480
481 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
482 return external_rate(rcs1);
483 }
484
485 int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
486 {
487 struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL;
488 unsigned long _flags;
489 int res = 0;
490 unsigned char rcs0, rcs1;
491 unsigned char c0, c1;
492
493 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
494 if (flags & AK4114_CHECK_NO_STAT)
495 goto __rate;
496 rcs0 = reg_read(ak4114, AK4114_REG_RCS0);
497 spin_lock_irqsave(&ak4114->lock, _flags);
498 if (rcs0 & AK4114_PAR)
499 ak4114->parity_errors++;
500 if (rcs1 & AK4114_V)
501 ak4114->v_bit_errors++;
502 if (rcs1 & AK4114_CCRC)
503 ak4114->ccrc_errors++;
504 if (rcs1 & AK4114_QCRC)
505 ak4114->qcrc_errors++;
506 c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^
507 (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK));
508 c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0);
509 ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT);
510 ak4114->rcs1 = rcs1;
511 spin_unlock_irqrestore(&ak4114->lock, _flags);
512
513 if (rcs0 & AK4114_PAR)
514 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[0]->id);
515 if (rcs0 & AK4114_V)
516 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[1]->id);
517 if (rcs1 & AK4114_CCRC)
518 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[2]->id);
519 if (rcs1 & AK4114_QCRC)
520 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[3]->id);
521
522 /* rate change */
523 if (c1 & 0xf0)
524 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[4]->id);
525
526 if ((c0 & AK4114_PEM) | (c0 & AK4114_CINT))
527 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[9]->id);
528 if (c0 & AK4114_QINT)
529 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[10]->id);
530
531 if (c0 & AK4114_AUDION)
532 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[11]->id);
533 if (c0 & AK4114_AUTO)
534 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[12]->id);
535 if (c0 & AK4114_DTSCD)
536 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[13]->id);
537
538 if (ak4114->change_callback && (c0 | c1) != 0)
539 ak4114->change_callback(ak4114, c0, c1);
540
541 __rate:
542 /* compare rate */
543 res = external_rate(rcs1);
544 if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) {
545 snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags);
546 if (snd_pcm_running(ak4114->capture_substream)) {
547 // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
548 snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING);
549 res = 1;
550 }
551 snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags);
552 }
553 return res;
554 }
555
556 static void ak4114_stats(struct work_struct *work)
557 {
558 struct ak4114 *chip = container_of(work, struct ak4114, work.work);
559
560 if (chip->init)
561 return;
562 snd_ak4114_check_rate_and_errors(chip, 0);
563 schedule_delayed_work(&chip->work, HZ / 10);
564 }
565
566 EXPORT_SYMBOL(snd_ak4114_create);
567 EXPORT_SYMBOL(snd_ak4114_reg_write);
568 EXPORT_SYMBOL(snd_ak4114_reinit);
569 EXPORT_SYMBOL(snd_ak4114_build);
570 EXPORT_SYMBOL(snd_ak4114_external_rate);
571 EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);
Linux kernel - Deliverables
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