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[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz
[net-next-2.6.git] / sound / i2c / other / ak4114.c
CommitLineData
1da177e4
LT		 1/*
2 * Routines for control of the AK4114 via I2C and 4-wire serial interface
3 * IEC958 (S/PDIF) receiver by Asahi Kasei
c1017a4c 4 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
1da177e4
LT		 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
c1017a4c 32MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
1da177e4
LT		 33MODULE_DESCRIPTION("AK4114 IEC958 (S/PDIF) receiver by Asahi Kasei");
34MODULE_LICENSE("GPL");
35
36#define AK4114_ADDR 0x00 /* fixed address */
37
c4028958 38static void ak4114_stats(struct work_struct *work);
51354ae3 39static void ak4114_init_regs(struct ak4114 *chip);
1da177e4 40
97f02e05 41static void reg_write(struct ak4114 *ak4114, unsigned char reg, unsigned char val)
1da177e4
LT		 42{
43 ak4114->write(ak4114->private_data, reg, val);
44 if (reg <= AK4114_REG_INT1_MASK)
45 ak4114->regmap[reg] = val;
1ab774e0
JD		 46 else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4)
47 ak4114->txcsb[reg-AK4114_REG_TXCSB0] = val;
1da177e4
LT		 48}
49
97f02e05 50static inline unsigned char reg_read(struct ak4114 *ak4114, unsigned char reg)
1da177e4
LT		 51{
52 return ak4114->read(ak4114->private_data, reg);
53}
54
55#if 0
97f02e05 56static void reg_dump(struct ak4114 *ak4114)
1da177e4
LT		 57{
58 int i;
59
99b359ba 60 printk(KERN_DEBUG "AK4114 REG DUMP:\n");
1da177e4 61 for (i = 0; i < 0x20; i++)
99b359ba 62 printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < sizeof(ak4114->regmap) ? ak4114->regmap[i] : 0);
1da177e4
LT		 63}
64#endif
65
97f02e05 66static void snd_ak4114_free(struct ak4114 *chip)
1da177e4
LT		 67{
68 chip->init = 1; /* don't schedule new work */
69 mb();
3b6baa5a 70 cancel_delayed_work(&chip->work);
4014c38b 71 flush_scheduled_work();
1da177e4
LT		 72 kfree(chip);
73}
74
97f02e05 75static int snd_ak4114_dev_free(struct snd_device *device)
1da177e4 76{
97f02e05 77 struct ak4114 *chip = device->device_data;
1da177e4
LT		 78 snd_ak4114_free(chip);
79 return 0;
80}
81
97f02e05 82int snd_ak4114_create(struct snd_card *card,
1da177e4 83 ak4114_read_t *read, ak4114_write_t *write,
517400cb 84 const unsigned char pgm[7], const unsigned char txcsb[5],
97f02e05 85 void *private_data, struct ak4114 **r_ak4114)
1da177e4 86{
97f02e05 87 struct ak4114 *chip;
1da177e4
LT		 88 int err = 0;
89 unsigned char reg;
97f02e05 90 static struct snd_device_ops ops = {
1da177e4
LT		 91 .dev_free = snd_ak4114_dev_free,
92 };
93
561b220a 94 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1da177e4
LT		 95 if (chip == NULL)
96 return -ENOMEM;
97 spin_lock_init(&chip->lock);
98 chip->card = card;
99 chip->read = read;
100 chip->write = write;
101 chip->private_data = private_data;
3b6baa5a 102 INIT_DELAYED_WORK(&chip->work, ak4114_stats);
1da177e4
LT		 103
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];
108
51354ae3 109 ak4114_init_regs(chip);
1da177e4
LT		 110
111 chip->rcs0 = reg_read(chip, AK4114_REG_RCS0) & ~(AK4114_QINT | AK4114_CINT);
112 chip->rcs1 = reg_read(chip, AK4114_REG_RCS1);
113
114 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
115 goto __fail;
116
117 if (r_ak4114)
118 *r_ak4114 = chip;
119 return 0;
120
121 __fail:
122 snd_ak4114_free(chip);
123 return err < 0 ? err : -EIO;
124}
125
97f02e05 126void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val)
1da177e4
LT		 127{
128 if (reg <= AK4114_REG_INT1_MASK)
129 reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
130 else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4)
1ab774e0
JD		 131 reg_write(chip, reg,
132 (chip->txcsb[reg-AK4114_REG_TXCSB0] & ~mask) | val);
1da177e4
LT		 133}
134
51354ae3 135static void ak4114_init_regs(struct ak4114 *chip)
1da177e4
LT		 136{
137 unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg;
138
1da177e4
LT		 139 /* bring the chip to reset state and powerdown state */
140 reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN));
141 udelay(200);
142 /* release reset, but leave powerdown */
143 reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN);
144 udelay(200);
145 for (reg = 1; reg < 7; reg++)
146 reg_write(chip, reg, chip->regmap[reg]);
147 for (reg = 0; reg < 5; reg++)
148 reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]);
149 /* release powerdown, everything is initialized now */
150 reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN);
51354ae3
TI		 151}
152
153void snd_ak4114_reinit(struct ak4114 *chip)
154{
155 chip->init = 1;
156 mb();
157 flush_scheduled_work();
158 ak4114_init_regs(chip);
1da177e4
LT		 159 /* bring up statistics / event queing */
160 chip->init = 0;
51354ae3
TI		 161 if (chip->kctls[0])
162 schedule_delayed_work(&chip->work, HZ / 10);
1da177e4
LT		 163}
164
165static 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}
178
97f02e05
TI		 179static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol,
180 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 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}
188
97f02e05
TI		 189static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_elem_value *ucontrol)
1da177e4 191{
97f02e05 192 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 193 long *ptr;
194
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}
202
a5ce8890 203#define snd_ak4114_in_bit_info snd_ctl_boolean_mono_info
1da177e4 204
97f02e05
TI		 205static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol,
206 struct snd_ctl_elem_value *ucontrol)
1da177e4 207{
97f02e05 208 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 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
97f02e05
TI		 217static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol,
218 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 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
97f02e05
TI		 227static int snd_ak4114_rate_get(struct snd_kcontrol *kcontrol,
228 struct snd_ctl_elem_value *ucontrol)
1da177e4 229{
97f02e05 230 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 231
232 ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1));
233 return 0;
234}
235
97f02e05 236static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 237{
238 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
239 uinfo->count = 1;
240 return 0;
241}
242
97f02e05
TI		 243static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol,
244 struct snd_ctl_elem_value *ucontrol)
1da177e4 245{
97f02e05 246 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 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
97f02e05
TI		 254static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol,
255 struct snd_ctl_elem_value *ucontrol)
1da177e4 256{
97f02e05 257 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 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
97f02e05
TI		 265static int snd_ak4114_spdif_playback_put(struct snd_kcontrol *kcontrol,
266 struct snd_ctl_elem_value *ucontrol)
1da177e4 267{
97f02e05 268 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 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
97f02e05 276static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 277{
278 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
279 uinfo->count = 1;
280 return 0;
281}
282
97f02e05
TI		 283static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol,
284 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 285{
286 memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE);
287 return 0;
288}
289
97f02e05 290static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 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
97f02e05
TI		 299static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol,
300 struct snd_ctl_elem_value *ucontrol)
1da177e4 301{
97f02e05 302 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 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
97f02e05 314static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 315{
316 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
317 uinfo->count = AK4114_REG_QSUB_SIZE;
318 return 0;
319}
320
97f02e05
TI		 321static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol,
322 struct snd_ctl_elem_value *ucontrol)
1da177e4 323{
97f02e05 324 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 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!!! */
97f02e05 333static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
1da177e4
LT		 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,
97f02e05 340 .private_value = offsetof(struct ak4114, parity_errors),
1da177e4
LT		 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,
97f02e05 348 .private_value = offsetof(struct ak4114, v_bit_errors),
1da177e4
LT		 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,
97f02e05 356 .private_value = offsetof(struct ak4114, ccrc_errors),
1da177e4
LT		 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,
97f02e05 364 .private_value = offsetof(struct ak4114, qcrc_errors),
1da177e4
LT		 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,
c4116ae7 430 .private_value = (6<<8) | AK4114_REG_RCS0,
1da177e4
LT		 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,
c4116ae7
PH		 438 .private_value = (3<<8) | AK4114_REG_RCS0,
439},
440{
441 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
442 .name = "IEC958 PPL Lock Status",
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 = (1<<31) | (4<<8) | AK4114_REG_RCS0,
1da177e4
LT		 447}
448};
449
97f02e05
TI		 450int snd_ak4114_build(struct ak4114 *ak4114,
451 struct snd_pcm_substream *ply_substream,
452 struct snd_pcm_substream *cap_substream)
1da177e4 453{
97f02e05 454 struct snd_kcontrol *kctl;
1da177e4
LT		 455 unsigned int idx;
456 int err;
457
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;
c4116ae7 465 if (strstr(kctl->id.name, "Playback")) {
1da177e4
LT		 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 }
51354ae3
TI		 482 /* trigger workq */
483 schedule_delayed_work(&ak4114->work, HZ / 10);
1da177e4
LT		 484 return 0;
485}
486
51354ae3
TI		 487/* notify kcontrols if any parameters are changed */
488static void ak4114_notify(struct ak4114 *ak4114,
489 unsigned char rcs0, unsigned char rcs1,
490 unsigned char c0, unsigned char c1)
491{
492 if (!ak4114->kctls[0])
493 return;
494
495 if (rcs0 & AK4114_PAR)
496 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
497 &ak4114->kctls[0]->id);
498 if (rcs0 & AK4114_V)
499 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
500 &ak4114->kctls[1]->id);
501 if (rcs1 & AK4114_CCRC)
502 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
503 &ak4114->kctls[2]->id);
504 if (rcs1 & AK4114_QCRC)
505 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
506 &ak4114->kctls[3]->id);
507
508 /* rate change */
509 if (c1 & 0xf0)
510 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
511 &ak4114->kctls[4]->id);
512
513 if ((c0 & AK4114_PEM) | (c0 & AK4114_CINT))
514 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
515 &ak4114->kctls[9]->id);
516 if (c0 & AK4114_QINT)
517 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
518 &ak4114->kctls[10]->id);
519
520 if (c0 & AK4114_AUDION)
521 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
522 &ak4114->kctls[11]->id);
523 if (c0 & AK4114_AUTO)
524 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
525 &ak4114->kctls[12]->id);
526 if (c0 & AK4114_DTSCD)
527 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
528 &ak4114->kctls[13]->id);
c4116ae7
PH		 529 if (c0 & AK4114_UNLCK)
530 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
531 &ak4114->kctls[14]->id);
51354ae3
TI		 532}
533
97f02e05 534int snd_ak4114_external_rate(struct ak4114 *ak4114)
1da177e4
LT		 535{
536 unsigned char rcs1;
537
538 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
539 return external_rate(rcs1);
540}
541
97f02e05 542int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
1da177e4 543{
97f02e05 544 struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL;
1da177e4
LT		 545 unsigned long _flags;
546 int res = 0;
547 unsigned char rcs0, rcs1;
548 unsigned char c0, c1;
549
550 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
551 if (flags & AK4114_CHECK_NO_STAT)
552 goto __rate;
553 rcs0 = reg_read(ak4114, AK4114_REG_RCS0);
554 spin_lock_irqsave(&ak4114->lock, _flags);
555 if (rcs0 & AK4114_PAR)
556 ak4114->parity_errors++;
557 if (rcs1 & AK4114_V)
558 ak4114->v_bit_errors++;
559 if (rcs1 & AK4114_CCRC)
560 ak4114->ccrc_errors++;
561 if (rcs1 & AK4114_QCRC)
562 ak4114->qcrc_errors++;
563 c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^
564 (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK));
565 c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0);
566 ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT);
567 ak4114->rcs1 = rcs1;
568 spin_unlock_irqrestore(&ak4114->lock, _flags);
569
51354ae3 570 ak4114_notify(ak4114, rcs0, rcs1, c0, c1);
1da177e4
LT		 571 if (ak4114->change_callback && (c0 | c1) != 0)
572 ak4114->change_callback(ak4114, c0, c1);
573
574 __rate:
575 /* compare rate */
576 res = external_rate(rcs1);
577 if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) {
578 snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags);
579 if (snd_pcm_running(ak4114->capture_substream)) {
99b359ba 580 // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
1da177e4 581 snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING);
1da177e4
LT		 582 res = 1;
583 }
584 snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags);
585 }
586 return res;
587}
588
c4028958 589static void ak4114_stats(struct work_struct *work)
1da177e4 590{
c4028958 591 struct ak4114 *chip = container_of(work, struct ak4114, work.work);
1da177e4 592
c4116ae7 593 if (!chip->init)
51354ae3
TI		 594 snd_ak4114_check_rate_and_errors(chip, 0);
595
4014c38b 596 schedule_delayed_work(&chip->work, HZ / 10);
1da177e4
LT		 597}
598
599EXPORT_SYMBOL(snd_ak4114_create);
600EXPORT_SYMBOL(snd_ak4114_reg_write);
601EXPORT_SYMBOL(snd_ak4114_reinit);
602EXPORT_SYMBOL(snd_ak4114_build);
603EXPORT_SYMBOL(snd_ak4114_external_rate);
604EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);
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