[media] snd_tea575x: Add a cannot_mute flag
[linux-3.10.git] / sound / i2c / other / ak4113.c
1 /*
2  *  Routines for control of the AK4113 via I2C/4-wire serial interface
3  *  IEC958 (S/PDIF) receiver by Asahi Kasei
4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
5  *  Copyright (c) by Pavel Hofman <pavel.hofman@ivitera.com>
6  *
7  *
8  *   This program is free software; you can redistribute it and/or modify
9  *   it under the terms of the GNU General Public License as published by
10  *   the Free Software Foundation; either version 2 of the License, or
11  *   (at your option) any later version.
12  *
13  *   This program is distributed in the hope that it will be useful,
14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *   GNU General Public License for more details.
17  *
18  *   You should have received a copy of the GNU General Public License
19  *   along with this program; if not, write to the Free Software
20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21  *
22  */
23
24 #include <linux/slab.h>
25 #include <linux/delay.h>
26 #include <linux/module.h>
27 #include <sound/core.h>
28 #include <sound/control.h>
29 #include <sound/pcm.h>
30 #include <sound/ak4113.h>
31 #include <sound/asoundef.h>
32 #include <sound/info.h>
33
34 MODULE_AUTHOR("Pavel Hofman <pavel.hofman@ivitera.com>");
35 MODULE_DESCRIPTION("AK4113 IEC958 (S/PDIF) receiver by Asahi Kasei");
36 MODULE_LICENSE("GPL");
37
38 #define AK4113_ADDR                     0x00 /* fixed address */
39
40 static void ak4113_stats(struct work_struct *work);
41 static void ak4113_init_regs(struct ak4113 *chip);
42
43
44 static void reg_write(struct ak4113 *ak4113, unsigned char reg,
45                 unsigned char val)
46 {
47         ak4113->write(ak4113->private_data, reg, val);
48         if (reg < sizeof(ak4113->regmap))
49                 ak4113->regmap[reg] = val;
50 }
51
52 static inline unsigned char reg_read(struct ak4113 *ak4113, unsigned char reg)
53 {
54         return ak4113->read(ak4113->private_data, reg);
55 }
56
57 static void snd_ak4113_free(struct ak4113 *chip)
58 {
59         chip->init = 1; /* don't schedule new work */
60         mb();
61         cancel_delayed_work_sync(&chip->work);
62         kfree(chip);
63 }
64
65 static int snd_ak4113_dev_free(struct snd_device *device)
66 {
67         struct ak4113 *chip = device->device_data;
68         snd_ak4113_free(chip);
69         return 0;
70 }
71
72 int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read,
73                 ak4113_write_t *write, const unsigned char *pgm,
74                 void *private_data, struct ak4113 **r_ak4113)
75 {
76         struct ak4113 *chip;
77         int err = 0;
78         unsigned char reg;
79         static struct snd_device_ops ops = {
80                 .dev_free =     snd_ak4113_dev_free,
81         };
82
83         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
84         if (chip == NULL)
85                 return -ENOMEM;
86         spin_lock_init(&chip->lock);
87         chip->card = card;
88         chip->read = read;
89         chip->write = write;
90         chip->private_data = private_data;
91         INIT_DELAYED_WORK(&chip->work, ak4113_stats);
92
93         for (reg = 0; reg < AK4113_WRITABLE_REGS ; reg++)
94                 chip->regmap[reg] = pgm[reg];
95         ak4113_init_regs(chip);
96
97         chip->rcs0 = reg_read(chip, AK4113_REG_RCS0) & ~(AK4113_QINT |
98                         AK4113_CINT | AK4113_STC);
99         chip->rcs1 = reg_read(chip, AK4113_REG_RCS1);
100         chip->rcs2 = reg_read(chip, AK4113_REG_RCS2);
101         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
102         if (err < 0)
103                 goto __fail;
104
105         if (r_ak4113)
106                 *r_ak4113 = chip;
107         return 0;
108
109 __fail:
110         snd_ak4113_free(chip);
111         return err < 0 ? err : -EIO;
112 }
113 EXPORT_SYMBOL_GPL(snd_ak4113_create);
114
115 void snd_ak4113_reg_write(struct ak4113 *chip, unsigned char reg,
116                 unsigned char mask, unsigned char val)
117 {
118         if (reg >= AK4113_WRITABLE_REGS)
119                 return;
120         reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
121 }
122 EXPORT_SYMBOL_GPL(snd_ak4113_reg_write);
123
124 static void ak4113_init_regs(struct ak4113 *chip)
125 {
126         unsigned char old = chip->regmap[AK4113_REG_PWRDN], reg;
127
128         /* bring the chip to reset state and powerdown state */
129         reg_write(chip, AK4113_REG_PWRDN, old & ~(AK4113_RST|AK4113_PWN));
130         udelay(200);
131         /* release reset, but leave powerdown */
132         reg_write(chip, AK4113_REG_PWRDN, (old | AK4113_RST) & ~AK4113_PWN);
133         udelay(200);
134         for (reg = 1; reg < AK4113_WRITABLE_REGS; reg++)
135                 reg_write(chip, reg, chip->regmap[reg]);
136         /* release powerdown, everything is initialized now */
137         reg_write(chip, AK4113_REG_PWRDN, old | AK4113_RST | AK4113_PWN);
138 }
139
140 void snd_ak4113_reinit(struct ak4113 *chip)
141 {
142         chip->init = 1;
143         mb();
144         flush_delayed_work_sync(&chip->work);
145         ak4113_init_regs(chip);
146         /* bring up statistics / event queing */
147         chip->init = 0;
148         if (chip->kctls[0])
149                 schedule_delayed_work(&chip->work, HZ / 10);
150 }
151 EXPORT_SYMBOL_GPL(snd_ak4113_reinit);
152
153 static unsigned int external_rate(unsigned char rcs1)
154 {
155         switch (rcs1 & (AK4113_FS0|AK4113_FS1|AK4113_FS2|AK4113_FS3)) {
156         case AK4113_FS_8000HZ:
157                 return 8000;
158         case AK4113_FS_11025HZ:
159                 return 11025;
160         case AK4113_FS_16000HZ:
161                 return 16000;
162         case AK4113_FS_22050HZ:
163                 return 22050;
164         case AK4113_FS_24000HZ:
165                 return 24000;
166         case AK4113_FS_32000HZ:
167                 return 32000;
168         case AK4113_FS_44100HZ:
169                 return 44100;
170         case AK4113_FS_48000HZ:
171                 return 48000;
172         case AK4113_FS_64000HZ:
173                 return 64000;
174         case AK4113_FS_88200HZ:
175                 return 88200;
176         case AK4113_FS_96000HZ:
177                 return 96000;
178         case AK4113_FS_176400HZ:
179                 return 176400;
180         case AK4113_FS_192000HZ:
181                 return 192000;
182         default:
183                 return 0;
184         }
185 }
186
187 static int snd_ak4113_in_error_info(struct snd_kcontrol *kcontrol,
188                                     struct snd_ctl_elem_info *uinfo)
189 {
190         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
191         uinfo->count = 1;
192         uinfo->value.integer.min = 0;
193         uinfo->value.integer.max = LONG_MAX;
194         return 0;
195 }
196
197 static int snd_ak4113_in_error_get(struct snd_kcontrol *kcontrol,
198                                    struct snd_ctl_elem_value *ucontrol)
199 {
200         struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
201         long *ptr;
202
203         spin_lock_irq(&chip->lock);
204         ptr = (long *)(((char *)chip) + kcontrol->private_value);
205         ucontrol->value.integer.value[0] = *ptr;
206         *ptr = 0;
207         spin_unlock_irq(&chip->lock);
208         return 0;
209 }
210
211 #define snd_ak4113_in_bit_info          snd_ctl_boolean_mono_info
212
213 static int snd_ak4113_in_bit_get(struct snd_kcontrol *kcontrol,
214                                  struct snd_ctl_elem_value *ucontrol)
215 {
216         struct ak4113 *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;
220
221         ucontrol->value.integer.value[0] =
222                 ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
223         return 0;
224 }
225
226 static int snd_ak4113_rx_info(struct snd_kcontrol *kcontrol,
227                               struct snd_ctl_elem_info *uinfo)
228 {
229         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
230         uinfo->count = 1;
231         uinfo->value.integer.min = 0;
232         uinfo->value.integer.max = 5;
233         return 0;
234 }
235
236 static int snd_ak4113_rx_get(struct snd_kcontrol *kcontrol,
237                              struct snd_ctl_elem_value *ucontrol)
238 {
239         struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
240
241         ucontrol->value.integer.value[0] =
242                 (AK4113_IPS(chip->regmap[AK4113_REG_IO1]));
243         return 0;
244 }
245
246 static int snd_ak4113_rx_put(struct snd_kcontrol *kcontrol,
247                              struct snd_ctl_elem_value *ucontrol)
248 {
249         struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
250         int change;
251         u8 old_val;
252
253         spin_lock_irq(&chip->lock);
254         old_val = chip->regmap[AK4113_REG_IO1];
255         change = ucontrol->value.integer.value[0] != AK4113_IPS(old_val);
256         if (change)
257                 reg_write(chip, AK4113_REG_IO1,
258                                 (old_val & (~AK4113_IPS(0xff))) |
259                                 (AK4113_IPS(ucontrol->value.integer.value[0])));
260         spin_unlock_irq(&chip->lock);
261         return change;
262 }
263
264 static int snd_ak4113_rate_info(struct snd_kcontrol *kcontrol,
265                                 struct snd_ctl_elem_info *uinfo)
266 {
267         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
268         uinfo->count = 1;
269         uinfo->value.integer.min = 0;
270         uinfo->value.integer.max = 192000;
271         return 0;
272 }
273
274 static int snd_ak4113_rate_get(struct snd_kcontrol *kcontrol,
275                                struct snd_ctl_elem_value *ucontrol)
276 {
277         struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
278
279         ucontrol->value.integer.value[0] = external_rate(reg_read(chip,
280                                 AK4113_REG_RCS1));
281         return 0;
282 }
283
284 static int snd_ak4113_spdif_info(struct snd_kcontrol *kcontrol,
285                 struct snd_ctl_elem_info *uinfo)
286 {
287         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
288         uinfo->count = 1;
289         return 0;
290 }
291
292 static int snd_ak4113_spdif_get(struct snd_kcontrol *kcontrol,
293                                 struct snd_ctl_elem_value *ucontrol)
294 {
295         struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
296         unsigned i;
297
298         for (i = 0; i < AK4113_REG_RXCSB_SIZE; i++)
299                 ucontrol->value.iec958.status[i] = reg_read(chip,
300                                 AK4113_REG_RXCSB0 + i);
301         return 0;
302 }
303
304 static int snd_ak4113_spdif_mask_info(struct snd_kcontrol *kcontrol,
305                 struct snd_ctl_elem_info *uinfo)
306 {
307         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
308         uinfo->count = 1;
309         return 0;
310 }
311
312 static int snd_ak4113_spdif_mask_get(struct snd_kcontrol *kcontrol,
313                                       struct snd_ctl_elem_value *ucontrol)
314 {
315         memset(ucontrol->value.iec958.status, 0xff, AK4113_REG_RXCSB_SIZE);
316         return 0;
317 }
318
319 static int snd_ak4113_spdif_pinfo(struct snd_kcontrol *kcontrol,
320                 struct snd_ctl_elem_info *uinfo)
321 {
322         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
323         uinfo->value.integer.min = 0;
324         uinfo->value.integer.max = 0xffff;
325         uinfo->count = 4;
326         return 0;
327 }
328
329 static int snd_ak4113_spdif_pget(struct snd_kcontrol *kcontrol,
330                                  struct snd_ctl_elem_value *ucontrol)
331 {
332         struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
333         unsigned short tmp;
334
335         ucontrol->value.integer.value[0] = 0xf8f2;
336         ucontrol->value.integer.value[1] = 0x4e1f;
337         tmp = reg_read(chip, AK4113_REG_Pc0) |
338                 (reg_read(chip, AK4113_REG_Pc1) << 8);
339         ucontrol->value.integer.value[2] = tmp;
340         tmp = reg_read(chip, AK4113_REG_Pd0) |
341                 (reg_read(chip, AK4113_REG_Pd1) << 8);
342         ucontrol->value.integer.value[3] = tmp;
343         return 0;
344 }
345
346 static int snd_ak4113_spdif_qinfo(struct snd_kcontrol *kcontrol,
347                 struct snd_ctl_elem_info *uinfo)
348 {
349         uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
350         uinfo->count = AK4113_REG_QSUB_SIZE;
351         return 0;
352 }
353
354 static int snd_ak4113_spdif_qget(struct snd_kcontrol *kcontrol,
355                                  struct snd_ctl_elem_value *ucontrol)
356 {
357         struct ak4113 *chip = snd_kcontrol_chip(kcontrol);
358         unsigned i;
359
360         for (i = 0; i < AK4113_REG_QSUB_SIZE; i++)
361                 ucontrol->value.bytes.data[i] = reg_read(chip,
362                                 AK4113_REG_QSUB_ADDR + i);
363         return 0;
364 }
365
366 /* Don't forget to change AK4113_CONTROLS define!!! */
367 static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = {
368 {
369         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
370         .name =         "IEC958 Parity Errors",
371         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
372                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
373         .info =         snd_ak4113_in_error_info,
374         .get =          snd_ak4113_in_error_get,
375         .private_value = offsetof(struct ak4113, parity_errors),
376 },
377 {
378         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
379         .name =         "IEC958 V-Bit Errors",
380         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
381                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
382         .info =         snd_ak4113_in_error_info,
383         .get =          snd_ak4113_in_error_get,
384         .private_value = offsetof(struct ak4113, v_bit_errors),
385 },
386 {
387         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
388         .name =         "IEC958 C-CRC Errors",
389         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
390                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
391         .info =         snd_ak4113_in_error_info,
392         .get =          snd_ak4113_in_error_get,
393         .private_value = offsetof(struct ak4113, ccrc_errors),
394 },
395 {
396         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
397         .name =         "IEC958 Q-CRC Errors",
398         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
399                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
400         .info =         snd_ak4113_in_error_info,
401         .get =          snd_ak4113_in_error_get,
402         .private_value = offsetof(struct ak4113, qcrc_errors),
403 },
404 {
405         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
406         .name =         "IEC958 External Rate",
407         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
408                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
409         .info =         snd_ak4113_rate_info,
410         .get =          snd_ak4113_rate_get,
411 },
412 {
413         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
414         .name =         SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
415         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
416         .info =         snd_ak4113_spdif_mask_info,
417         .get =          snd_ak4113_spdif_mask_get,
418 },
419 {
420         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
421         .name =         SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
422         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
423                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
424         .info =         snd_ak4113_spdif_info,
425         .get =          snd_ak4113_spdif_get,
426 },
427 {
428         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
429         .name =         "IEC958 Preample Capture Default",
430         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
431                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
432         .info =         snd_ak4113_spdif_pinfo,
433         .get =          snd_ak4113_spdif_pget,
434 },
435 {
436         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
437         .name =         "IEC958 Q-subcode Capture Default",
438         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
439                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
440         .info =         snd_ak4113_spdif_qinfo,
441         .get =          snd_ak4113_spdif_qget,
442 },
443 {
444         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
445         .name =         "IEC958 Audio",
446         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
447                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
448         .info =         snd_ak4113_in_bit_info,
449         .get =          snd_ak4113_in_bit_get,
450         .private_value = (1<<31) | (1<<8) | AK4113_REG_RCS0,
451 },
452 {
453         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
454         .name =         "IEC958 Non-PCM Bitstream",
455         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
456                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
457         .info =         snd_ak4113_in_bit_info,
458         .get =          snd_ak4113_in_bit_get,
459         .private_value = (0<<8) | AK4113_REG_RCS1,
460 },
461 {
462         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
463         .name =         "IEC958 DTS Bitstream",
464         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
465                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
466         .info =         snd_ak4113_in_bit_info,
467         .get =          snd_ak4113_in_bit_get,
468         .private_value = (1<<8) | AK4113_REG_RCS1,
469 },
470 {
471         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
472         .name =         "AK4113 Input Select",
473         .access =       SNDRV_CTL_ELEM_ACCESS_READ |
474                 SNDRV_CTL_ELEM_ACCESS_WRITE,
475         .info =         snd_ak4113_rx_info,
476         .get =          snd_ak4113_rx_get,
477         .put =          snd_ak4113_rx_put,
478 }
479 };
480
481 static void snd_ak4113_proc_regs_read(struct snd_info_entry *entry,
482                 struct snd_info_buffer *buffer)
483 {
484         struct ak4113 *ak4113 = entry->private_data;
485         int reg, val;
486         /* all ak4113 registers 0x00 - 0x1c */
487         for (reg = 0; reg < 0x1d; reg++) {
488                 val = reg_read(ak4113, reg);
489                 snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
490         }
491 }
492
493 static void snd_ak4113_proc_init(struct ak4113 *ak4113)
494 {
495         struct snd_info_entry *entry;
496         if (!snd_card_proc_new(ak4113->card, "ak4113", &entry))
497                 snd_info_set_text_ops(entry, ak4113, snd_ak4113_proc_regs_read);
498 }
499
500 int snd_ak4113_build(struct ak4113 *ak4113,
501                 struct snd_pcm_substream *cap_substream)
502 {
503         struct snd_kcontrol *kctl;
504         unsigned int idx;
505         int err;
506
507         if (snd_BUG_ON(!cap_substream))
508                 return -EINVAL;
509         ak4113->substream = cap_substream;
510         for (idx = 0; idx < AK4113_CONTROLS; idx++) {
511                 kctl = snd_ctl_new1(&snd_ak4113_iec958_controls[idx], ak4113);
512                 if (kctl == NULL)
513                         return -ENOMEM;
514                 kctl->id.device = cap_substream->pcm->device;
515                 kctl->id.subdevice = cap_substream->number;
516                 err = snd_ctl_add(ak4113->card, kctl);
517                 if (err < 0)
518                         return err;
519                 ak4113->kctls[idx] = kctl;
520         }
521         snd_ak4113_proc_init(ak4113);
522         /* trigger workq */
523         schedule_delayed_work(&ak4113->work, HZ / 10);
524         return 0;
525 }
526 EXPORT_SYMBOL_GPL(snd_ak4113_build);
527
528 int snd_ak4113_external_rate(struct ak4113 *ak4113)
529 {
530         unsigned char rcs1;
531
532         rcs1 = reg_read(ak4113, AK4113_REG_RCS1);
533         return external_rate(rcs1);
534 }
535 EXPORT_SYMBOL_GPL(snd_ak4113_external_rate);
536
537 int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags)
538 {
539         struct snd_pcm_runtime *runtime =
540                 ak4113->substream ? ak4113->substream->runtime : NULL;
541         unsigned long _flags;
542         int res = 0;
543         unsigned char rcs0, rcs1, rcs2;
544         unsigned char c0, c1;
545
546         rcs1 = reg_read(ak4113, AK4113_REG_RCS1);
547         if (flags & AK4113_CHECK_NO_STAT)
548                 goto __rate;
549         rcs0 = reg_read(ak4113, AK4113_REG_RCS0);
550         rcs2 = reg_read(ak4113, AK4113_REG_RCS2);
551         spin_lock_irqsave(&ak4113->lock, _flags);
552         if (rcs0 & AK4113_PAR)
553                 ak4113->parity_errors++;
554         if (rcs0 & AK4113_V)
555                 ak4113->v_bit_errors++;
556         if (rcs2 & AK4113_CCRC)
557                 ak4113->ccrc_errors++;
558         if (rcs2 & AK4113_QCRC)
559                 ak4113->qcrc_errors++;
560         c0 = (ak4113->rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC |
561                                 AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK)) ^
562                 (rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC |
563                          AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK));
564         c1 = (ak4113->rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM |
565                                 AK4113_DAT | 0xf0)) ^
566                 (rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM |
567                          AK4113_DAT | 0xf0));
568         ak4113->rcs0 = rcs0 & ~(AK4113_QINT | AK4113_CINT | AK4113_STC);
569         ak4113->rcs1 = rcs1;
570         ak4113->rcs2 = rcs2;
571         spin_unlock_irqrestore(&ak4113->lock, _flags);
572
573         if (rcs0 & AK4113_PAR)
574                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
575                                 &ak4113->kctls[0]->id);
576         if (rcs0 & AK4113_V)
577                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
578                                 &ak4113->kctls[1]->id);
579         if (rcs2 & AK4113_CCRC)
580                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
581                                 &ak4113->kctls[2]->id);
582         if (rcs2 & AK4113_QCRC)
583                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
584                                 &ak4113->kctls[3]->id);
585
586         /* rate change */
587         if (c1 & 0xf0)
588                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
589                                 &ak4113->kctls[4]->id);
590
591         if ((c1 & AK4113_PEM) | (c0 & AK4113_CINT))
592                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
593                                 &ak4113->kctls[6]->id);
594         if (c0 & AK4113_QINT)
595                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
596                                 &ak4113->kctls[8]->id);
597
598         if (c0 & AK4113_AUDION)
599                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
600                                 &ak4113->kctls[9]->id);
601         if (c1 & AK4113_NPCM)
602                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
603                                 &ak4113->kctls[10]->id);
604         if (c1 & AK4113_DTSCD)
605                 snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE,
606                                 &ak4113->kctls[11]->id);
607
608         if (ak4113->change_callback && (c0 | c1) != 0)
609                 ak4113->change_callback(ak4113, c0, c1);
610
611 __rate:
612         /* compare rate */
613         res = external_rate(rcs1);
614         if (!(flags & AK4113_CHECK_NO_RATE) && runtime &&
615                         (runtime->rate != res)) {
616                 snd_pcm_stream_lock_irqsave(ak4113->substream, _flags);
617                 if (snd_pcm_running(ak4113->substream)) {
618                         /*printk(KERN_DEBUG "rate changed (%i <- %i)\n",
619                          * runtime->rate, res); */
620                         snd_pcm_stop(ak4113->substream,
621                                         SNDRV_PCM_STATE_DRAINING);
622                         wake_up(&runtime->sleep);
623                         res = 1;
624                 }
625                 snd_pcm_stream_unlock_irqrestore(ak4113->substream, _flags);
626         }
627         return res;
628 }
629 EXPORT_SYMBOL_GPL(snd_ak4113_check_rate_and_errors);
630
631 static void ak4113_stats(struct work_struct *work)
632 {
633         struct ak4113 *chip = container_of(work, struct ak4113, work.work);
634
635         if (!chip->init)
636                 snd_ak4113_check_rate_and_errors(chip, chip->check_flags);
637
638         schedule_delayed_work(&chip->work, HZ / 10);
639 }