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ieee1394: eth1394: Move common recv_init code to helper function
[linux-2.6/btrfs-unstable.git] / sound / i2c / other / ak4114.c
blobadbfd5884d0606cfce7547fc2757681ab2df746b
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_TXCSB0 && reg <= AK4114_REG_TXCSB4)
46 ak4114->txcsb[reg-AK4114_REG_TXCSB0] = 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,
131 (chip->txcsb[reg-AK4114_REG_TXCSB0] & ~mask) | val);
132 }
133
134 void snd_ak4114_reinit(struct ak4114 *chip)
135 {
136 unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg;
137
138 chip->init = 1;
139 mb();
140 flush_scheduled_work();
141 /* bring the chip to reset state and powerdown state */
142 reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN));
143 udelay(200);
144 /* release reset, but leave powerdown */
145 reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN);
146 udelay(200);
147 for (reg = 1; reg < 7; reg++)
148 reg_write(chip, reg, chip->regmap[reg]);
149 for (reg = 0; reg < 5; reg++)
150 reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]);
151 /* release powerdown, everything is initialized now */
152 reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN);
153 /* bring up statistics / event queing */
154 chip->init = 0;
155 schedule_delayed_work(&chip->work, HZ / 10);
156 }
157
158 static unsigned int external_rate(unsigned char rcs1)
159 {
160 switch (rcs1 & (AK4114_FS0|AK4114_FS1|AK4114_FS2|AK4114_FS3)) {
161 case AK4114_FS_32000HZ: return 32000;
162 case AK4114_FS_44100HZ: return 44100;
163 case AK4114_FS_48000HZ: return 48000;
164 case AK4114_FS_88200HZ: return 88200;
165 case AK4114_FS_96000HZ: return 96000;
166 case AK4114_FS_176400HZ: return 176400;
167 case AK4114_FS_192000HZ: return 192000;
168 default: return 0;
169 }
170 }
171
172 static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol,
173 struct snd_ctl_elem_info *uinfo)
174 {
175 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
176 uinfo->count = 1;
177 uinfo->value.integer.min = 0;
178 uinfo->value.integer.max = LONG_MAX;
179 return 0;
180 }
181
182 static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol,
183 struct snd_ctl_elem_value *ucontrol)
184 {
185 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
186 long *ptr;
187
188 spin_lock_irq(&chip->lock);
189 ptr = (long *)(((char *)chip) + kcontrol->private_value);
190 ucontrol->value.integer.value[0] = *ptr;
191 *ptr = 0;
192 spin_unlock_irq(&chip->lock);
193 return 0;
194 }
195
196 static int snd_ak4114_in_bit_info(struct snd_kcontrol *kcontrol,
197 struct snd_ctl_elem_info *uinfo)
198 {
199 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
200 uinfo->count = 1;
201 uinfo->value.integer.min = 0;
202 uinfo->value.integer.max = 1;
203 return 0;
204 }
205
206 static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol,
207 struct snd_ctl_elem_value *ucontrol)
208 {
209 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
210 unsigned char reg = kcontrol->private_value & 0xff;
211 unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
212 unsigned char inv = (kcontrol->private_value >> 31) & 1;
213
214 ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
215 return 0;
216 }
217
218 static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol,
219 struct snd_ctl_elem_info *uinfo)
220 {
221 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
222 uinfo->count = 1;
223 uinfo->value.integer.min = 0;
224 uinfo->value.integer.max = 192000;
225 return 0;
226 }
227
228 static int snd_ak4114_rate_get(struct snd_kcontrol *kcontrol,
229 struct snd_ctl_elem_value *ucontrol)
230 {
231 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
232
233 ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1));
234 return 0;
235 }
236
237 static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
238 {
239 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
240 uinfo->count = 1;
241 return 0;
242 }
243
244 static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol,
245 struct snd_ctl_elem_value *ucontrol)
246 {
247 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
248 unsigned i;
249
250 for (i = 0; i < AK4114_REG_RXCSB_SIZE; i++)
251 ucontrol->value.iec958.status[i] = reg_read(chip, AK4114_REG_RXCSB0 + i);
252 return 0;
253 }
254
255 static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol,
256 struct snd_ctl_elem_value *ucontrol)
257 {
258 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
259 unsigned i;
260
261 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
262 ucontrol->value.iec958.status[i] = chip->txcsb[i];
263 return 0;
264 }
265
266 static int snd_ak4114_spdif_playback_put(struct snd_kcontrol *kcontrol,
267 struct snd_ctl_elem_value *ucontrol)
268 {
269 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
270 unsigned i;
271
272 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
273 reg_write(chip, AK4114_REG_TXCSB0 + i, ucontrol->value.iec958.status[i]);
274 return 0;
275 }
276
277 static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
278 {
279 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
280 uinfo->count = 1;
281 return 0;
282 }
283
284 static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol,
285 struct snd_ctl_elem_value *ucontrol)
286 {
287 memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE);
288 return 0;
289 }
290
291 static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
292 {
293 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
294 uinfo->value.integer.min = 0;
295 uinfo->value.integer.max = 0xffff;
296 uinfo->count = 4;
297 return 0;
298 }
299
300 static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol,
301 struct snd_ctl_elem_value *ucontrol)
302 {
303 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
304 unsigned short tmp;
305
306 ucontrol->value.integer.value[0] = 0xf8f2;
307 ucontrol->value.integer.value[1] = 0x4e1f;
308 tmp = reg_read(chip, AK4114_REG_Pc0) | (reg_read(chip, AK4114_REG_Pc1) << 8);
309 ucontrol->value.integer.value[2] = tmp;
310 tmp = reg_read(chip, AK4114_REG_Pd0) | (reg_read(chip, AK4114_REG_Pd1) << 8);
311 ucontrol->value.integer.value[3] = tmp;
312 return 0;
313 }
314
315 static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
316 {
317 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
318 uinfo->count = AK4114_REG_QSUB_SIZE;
319 return 0;
320 }
321
322 static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol,
323 struct snd_ctl_elem_value *ucontrol)
324 {
325 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
326 unsigned i;
327
328 for (i = 0; i < AK4114_REG_QSUB_SIZE; i++)
329 ucontrol->value.bytes.data[i] = reg_read(chip, AK4114_REG_QSUB_ADDR + i);
330 return 0;
331 }
332
333 /* Don't forget to change AK4114_CONTROLS define!!! */
334 static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
335 {
336 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
337 .name = "IEC958 Parity Errors",
338 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
339 .info = snd_ak4114_in_error_info,
340 .get = snd_ak4114_in_error_get,
341 .private_value = offsetof(struct ak4114, parity_errors),
342 },
343 {
344 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
345 .name = "IEC958 V-Bit Errors",
346 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
347 .info = snd_ak4114_in_error_info,
348 .get = snd_ak4114_in_error_get,
349 .private_value = offsetof(struct ak4114, v_bit_errors),
350 },
351 {
352 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
353 .name = "IEC958 C-CRC Errors",
354 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
355 .info = snd_ak4114_in_error_info,
356 .get = snd_ak4114_in_error_get,
357 .private_value = offsetof(struct ak4114, ccrc_errors),
358 },
359 {
360 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
361 .name = "IEC958 Q-CRC Errors",
362 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
363 .info = snd_ak4114_in_error_info,
364 .get = snd_ak4114_in_error_get,
365 .private_value = offsetof(struct ak4114, qcrc_errors),
366 },
367 {
368 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
369 .name = "IEC958 External Rate",
370 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
371 .info = snd_ak4114_rate_info,
372 .get = snd_ak4114_rate_get,
373 },
374 {
375 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
376 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
377 .access = SNDRV_CTL_ELEM_ACCESS_READ,
378 .info = snd_ak4114_spdif_mask_info,
379 .get = snd_ak4114_spdif_mask_get,
380 },
381 {
382 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
383 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
384 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
385 .info = snd_ak4114_spdif_info,
386 .get = snd_ak4114_spdif_playback_get,
387 .put = snd_ak4114_spdif_playback_put,
388 },
389 {
390 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
391 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
392 .access = SNDRV_CTL_ELEM_ACCESS_READ,
393 .info = snd_ak4114_spdif_mask_info,
394 .get = snd_ak4114_spdif_mask_get,
395 },
396 {
397 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
398 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
399 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
400 .info = snd_ak4114_spdif_info,
401 .get = snd_ak4114_spdif_get,
402 },
403 {
404 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
405 .name = "IEC958 Preample Capture Default",
406 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
407 .info = snd_ak4114_spdif_pinfo,
408 .get = snd_ak4114_spdif_pget,
409 },
410 {
411 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
412 .name = "IEC958 Q-subcode Capture Default",
413 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
414 .info = snd_ak4114_spdif_qinfo,
415 .get = snd_ak4114_spdif_qget,
416 },
417 {
418 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
419 .name = "IEC958 Audio",
420 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
421 .info = snd_ak4114_in_bit_info,
422 .get = snd_ak4114_in_bit_get,
423 .private_value = (1<<31) | (1<<8) | AK4114_REG_RCS0,
424 },
425 {
426 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
427 .name = "IEC958 Non-PCM Bitstream",
428 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
429 .info = snd_ak4114_in_bit_info,
430 .get = snd_ak4114_in_bit_get,
431 .private_value = (6<<8) | AK4114_REG_RCS1,
432 },
433 {
434 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
435 .name = "IEC958 DTS Bitstream",
436 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
437 .info = snd_ak4114_in_bit_info,
438 .get = snd_ak4114_in_bit_get,
439 .private_value = (3<<8) | AK4114_REG_RCS1,
440 }
441 };
442
443 int snd_ak4114_build(struct ak4114 *ak4114,
444 struct snd_pcm_substream *ply_substream,
445 struct snd_pcm_substream *cap_substream)
446 {
447 struct snd_kcontrol *kctl;
448 unsigned int idx;
449 int err;
450
451 snd_assert(cap_substream, return -EINVAL);
452 ak4114->playback_substream = ply_substream;
453 ak4114->capture_substream = cap_substream;
454 for (idx = 0; idx < AK4114_CONTROLS; idx++) {
455 kctl = snd_ctl_new1(&snd_ak4114_iec958_controls[idx], ak4114);
456 if (kctl == NULL)
457 return -ENOMEM;
458 if (!strstr(kctl->id.name, "Playback")) {
459 if (ply_substream == NULL) {
460 snd_ctl_free_one(kctl);
461 ak4114->kctls[idx] = NULL;
462 continue;
463 }
464 kctl->id.device = ply_substream->pcm->device;
465 kctl->id.subdevice = ply_substream->number;
466 } else {
467 kctl->id.device = cap_substream->pcm->device;
468 kctl->id.subdevice = cap_substream->number;
469 }
470 err = snd_ctl_add(ak4114->card, kctl);
471 if (err < 0)
472 return err;
473 ak4114->kctls[idx] = kctl;
474 }
475 return 0;
476 }
477
478 int snd_ak4114_external_rate(struct ak4114 *ak4114)
479 {
480 unsigned char rcs1;
481
482 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
483 return external_rate(rcs1);
484 }
485
486 int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
487 {
488 struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL;
489 unsigned long _flags;
490 int res = 0;
491 unsigned char rcs0, rcs1;
492 unsigned char c0, c1;
493
494 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
495 if (flags & AK4114_CHECK_NO_STAT)
496 goto __rate;
497 rcs0 = reg_read(ak4114, AK4114_REG_RCS0);
498 spin_lock_irqsave(&ak4114->lock, _flags);
499 if (rcs0 & AK4114_PAR)
500 ak4114->parity_errors++;
501 if (rcs1 & AK4114_V)
502 ak4114->v_bit_errors++;
503 if (rcs1 & AK4114_CCRC)
504 ak4114->ccrc_errors++;
505 if (rcs1 & AK4114_QCRC)
506 ak4114->qcrc_errors++;
507 c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^
508 (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK));
509 c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0);
510 ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT);
511 ak4114->rcs1 = rcs1;
512 spin_unlock_irqrestore(&ak4114->lock, _flags);
513
514 if (rcs0 & AK4114_PAR)
515 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[0]->id);
516 if (rcs0 & AK4114_V)
517 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[1]->id);
518 if (rcs1 & AK4114_CCRC)
519 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[2]->id);
520 if (rcs1 & AK4114_QCRC)
521 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[3]->id);
522
523 /* rate change */
524 if (c1 & 0xf0)
525 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[4]->id);
526
527 if ((c0 & AK4114_PEM) | (c0 & AK4114_CINT))
528 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[9]->id);
529 if (c0 & AK4114_QINT)
530 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[10]->id);
531
532 if (c0 & AK4114_AUDION)
533 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[11]->id);
534 if (c0 & AK4114_AUTO)
535 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[12]->id);
536 if (c0 & AK4114_DTSCD)
537 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4114->kctls[13]->id);
538
539 if (ak4114->change_callback && (c0 | c1) != 0)
540 ak4114->change_callback(ak4114, c0, c1);
541
542 __rate:
543 /* compare rate */
544 res = external_rate(rcs1);
545 if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) {
546 snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags);
547 if (snd_pcm_running(ak4114->capture_substream)) {
548 // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
549 snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING);
550 res = 1;
551 }
552 snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags);
553 }
554 return res;
555 }
556
557 static void ak4114_stats(struct work_struct *work)
558 {
559 struct ak4114 *chip = container_of(work, struct ak4114, work.work);
560
561 if (chip->init)
562 return;
563 snd_ak4114_check_rate_and_errors(chip, 0);
564 schedule_delayed_work(&chip->work, HZ / 10);
565 }
566
567 EXPORT_SYMBOL(snd_ak4114_create);
568 EXPORT_SYMBOL(snd_ak4114_reg_write);
569 EXPORT_SYMBOL(snd_ak4114_reinit);
570 EXPORT_SYMBOL(snd_ak4114_build);
571 EXPORT_SYMBOL(snd_ak4114_external_rate);
572 EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);
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