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[thirdparty/linux.git] / sound / i2c / other / ak4114.c
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1a59d1b8 1// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4
LT		 2/*
3 * Routines for control of the AK4114 via I2C and 4-wire serial interface
4 * IEC958 (S/PDIF) receiver by Asahi Kasei
c1017a4c 5 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
1da177e4
LT		 6 */
7
1da177e4
LT		 8#include <linux/slab.h>
9#include <linux/delay.h>
da155d5b 10#include <linux/module.h>
1da177e4
LT		 11#include <sound/core.h>
12#include <sound/control.h>
13#include <sound/pcm.h>
14#include <sound/ak4114.h>
15#include <sound/asoundef.h>
fdafad6f 16#include <sound/info.h>
1da177e4 17
c1017a4c 18MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
1da177e4
LT		 19MODULE_DESCRIPTION("AK4114 IEC958 (S/PDIF) receiver by Asahi Kasei");
20MODULE_LICENSE("GPL");
21
22#define AK4114_ADDR 0x00 /* fixed address */
23
c4028958 24static void ak4114_stats(struct work_struct *work);
51354ae3 25static void ak4114_init_regs(struct ak4114 *chip);
1da177e4 26
97f02e05 27static void reg_write(struct ak4114 *ak4114, unsigned char reg, unsigned char val)
1da177e4
LT		 28{
29 ak4114->write(ak4114->private_data, reg, val);
30 if (reg <= AK4114_REG_INT1_MASK)
31 ak4114->regmap[reg] = val;
1ab774e0
JD		 32 else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4)
33 ak4114->txcsb[reg-AK4114_REG_TXCSB0] = val;
1da177e4
LT		 34}
35
97f02e05 36static inline unsigned char reg_read(struct ak4114 *ak4114, unsigned char reg)
1da177e4
LT		 37{
38 return ak4114->read(ak4114->private_data, reg);
39}
40
41#if 0
97f02e05 42static void reg_dump(struct ak4114 *ak4114)
1da177e4
LT		 43{
44 int i;
45
99b359ba 46 printk(KERN_DEBUG "AK4114 REG DUMP:\n");
1da177e4 47 for (i = 0; i < 0x20; i++)
e12483e0 48 printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < ARRAY_SIZE(ak4114->regmap) ? ak4114->regmap[i] : 0);
1da177e4
LT		 49}
50#endif
51
97f02e05 52static void snd_ak4114_free(struct ak4114 *chip)
1da177e4 53{
4161b450 54 atomic_inc(&chip->wq_processing); /* don't schedule new work */
5b84ba26 55 cancel_delayed_work_sync(&chip->work);
1da177e4
LT		 56 kfree(chip);
57}
58
97f02e05 59static int snd_ak4114_dev_free(struct snd_device *device)
1da177e4 60{
97f02e05 61 struct ak4114 *chip = device->device_data;
1da177e4
LT		 62 snd_ak4114_free(chip);
63 return 0;
64}
65
97f02e05 66int snd_ak4114_create(struct snd_card *card,
1da177e4 67 ak4114_read_t *read, ak4114_write_t *write,
e12483e0 68 const unsigned char pgm[6], const unsigned char txcsb[5],
97f02e05 69 void *private_data, struct ak4114 **r_ak4114)
1da177e4 70{
97f02e05 71 struct ak4114 *chip;
1da177e4
LT		 72 int err = 0;
73 unsigned char reg;
97f02e05 74 static struct snd_device_ops ops = {
1da177e4
LT		 75 .dev_free = snd_ak4114_dev_free,
76 };
77
561b220a 78 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1da177e4
LT		 79 if (chip == NULL)
80 return -ENOMEM;
81 spin_lock_init(&chip->lock);
82 chip->card = card;
83 chip->read = read;
84 chip->write = write;
85 chip->private_data = private_data;
3b6baa5a 86 INIT_DELAYED_WORK(&chip->work, ak4114_stats);
4161b450 87 atomic_set(&chip->wq_processing, 0);
1781e78c 88 mutex_init(&chip->reinit_mutex);
1da177e4 89
e12483e0 90 for (reg = 0; reg < 6; reg++)
1da177e4
LT		 91 chip->regmap[reg] = pgm[reg];
92 for (reg = 0; reg < 5; reg++)
93 chip->txcsb[reg] = txcsb[reg];
94
51354ae3 95 ak4114_init_regs(chip);
1da177e4
LT		 96
97 chip->rcs0 = reg_read(chip, AK4114_REG_RCS0) & ~(AK4114_QINT | AK4114_CINT);
98 chip->rcs1 = reg_read(chip, AK4114_REG_RCS1);
99
483eb062 100 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops)) < 0)
1da177e4
LT		 101 goto __fail;
102
103 if (r_ak4114)
104 *r_ak4114 = chip;
105 return 0;
106
107 __fail:
108 snd_ak4114_free(chip);
5137d6da 109 return err;
1da177e4 110}
a850ef8a 111EXPORT_SYMBOL(snd_ak4114_create);
1da177e4 112
97f02e05 113void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val)
1da177e4
LT		 114{
115 if (reg <= AK4114_REG_INT1_MASK)
116 reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
117 else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4)
1ab774e0
JD		 118 reg_write(chip, reg,
119 (chip->txcsb[reg-AK4114_REG_TXCSB0] & ~mask) | val);
1da177e4 120}
a850ef8a 121EXPORT_SYMBOL(snd_ak4114_reg_write);
1da177e4 122
51354ae3 123static void ak4114_init_regs(struct ak4114 *chip)
1da177e4
LT		 124{
125 unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg;
126
1da177e4
LT		 127 /* bring the chip to reset state and powerdown state */
128 reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN));
129 udelay(200);
130 /* release reset, but leave powerdown */
131 reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN);
132 udelay(200);
e12483e0 133 for (reg = 1; reg < 6; reg++)
1da177e4
LT		 134 reg_write(chip, reg, chip->regmap[reg]);
135 for (reg = 0; reg < 5; reg++)
136 reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]);
137 /* release powerdown, everything is initialized now */
138 reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN);
51354ae3
TI		 139}
140
141void snd_ak4114_reinit(struct ak4114 *chip)
142{
4161b450
TI		 143 if (atomic_inc_return(&chip->wq_processing) == 1)
144 cancel_delayed_work_sync(&chip->work);
1781e78c 145 mutex_lock(&chip->reinit_mutex);
51354ae3 146 ak4114_init_regs(chip);
1781e78c 147 mutex_unlock(&chip->reinit_mutex);
1da177e4 148 /* bring up statistics / event queing */
4161b450 149 if (atomic_dec_and_test(&chip->wq_processing))
51354ae3 150 schedule_delayed_work(&chip->work, HZ / 10);
1da177e4 151}
a850ef8a 152EXPORT_SYMBOL(snd_ak4114_reinit);
1da177e4
LT		 153
154static unsigned int external_rate(unsigned char rcs1)
155{
156 switch (rcs1 & (AK4114_FS0|AK4114_FS1|AK4114_FS2|AK4114_FS3)) {
157 case AK4114_FS_32000HZ: return 32000;
158 case AK4114_FS_44100HZ: return 44100;
159 case AK4114_FS_48000HZ: return 48000;
160 case AK4114_FS_88200HZ: return 88200;
161 case AK4114_FS_96000HZ: return 96000;
162 case AK4114_FS_176400HZ: return 176400;
163 case AK4114_FS_192000HZ: return 192000;
164 default: return 0;
165 }
166}
167
97f02e05
TI		 168static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol,
169 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 170{
171 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
172 uinfo->count = 1;
173 uinfo->value.integer.min = 0;
174 uinfo->value.integer.max = LONG_MAX;
175 return 0;
176}
177
97f02e05
TI		 178static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
1da177e4 180{
97f02e05 181 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 182
183 spin_lock_irq(&chip->lock);
239480ab
TI		 184 ucontrol->value.integer.value[0] =
185 chip->errors[kcontrol->private_value];
186 chip->errors[kcontrol->private_value] = 0;
1da177e4
LT		 187 spin_unlock_irq(&chip->lock);
188 return 0;
189}
190
a5ce8890 191#define snd_ak4114_in_bit_info snd_ctl_boolean_mono_info
1da177e4 192
97f02e05
TI		 193static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol,
194 struct snd_ctl_elem_value *ucontrol)
1da177e4 195{
97f02e05 196 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 197 unsigned char reg = kcontrol->private_value & 0xff;
198 unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
199 unsigned char inv = (kcontrol->private_value >> 31) & 1;
200
201 ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
202 return 0;
203}
204
97f02e05
TI		 205static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol,
206 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 207{
208 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
209 uinfo->count = 1;
210 uinfo->value.integer.min = 0;
211 uinfo->value.integer.max = 192000;
212 return 0;
213}
214
97f02e05
TI		 215static int snd_ak4114_rate_get(struct snd_kcontrol *kcontrol,
216 struct snd_ctl_elem_value *ucontrol)
1da177e4 217{
97f02e05 218 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 219
220 ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1));
221 return 0;
222}
223
97f02e05 224static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 225{
226 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
227 uinfo->count = 1;
228 return 0;
229}
230
97f02e05
TI		 231static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol,
232 struct snd_ctl_elem_value *ucontrol)
1da177e4 233{
97f02e05 234 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 235 unsigned i;
236
237 for (i = 0; i < AK4114_REG_RXCSB_SIZE; i++)
238 ucontrol->value.iec958.status[i] = reg_read(chip, AK4114_REG_RXCSB0 + i);
239 return 0;
240}
241
97f02e05
TI		 242static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol,
243 struct snd_ctl_elem_value *ucontrol)
1da177e4 244{
97f02e05 245 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 246 unsigned i;
247
248 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
249 ucontrol->value.iec958.status[i] = chip->txcsb[i];
250 return 0;
251}
252
97f02e05
TI		 253static int snd_ak4114_spdif_playback_put(struct snd_kcontrol *kcontrol,
254 struct snd_ctl_elem_value *ucontrol)
1da177e4 255{
97f02e05 256 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 257 unsigned i;
258
259 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
260 reg_write(chip, AK4114_REG_TXCSB0 + i, ucontrol->value.iec958.status[i]);
261 return 0;
262}
263
97f02e05 264static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 265{
266 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
267 uinfo->count = 1;
268 return 0;
269}
270
97f02e05
TI		 271static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol,
272 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 273{
274 memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE);
275 return 0;
276}
277
97f02e05 278static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 279{
280 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
281 uinfo->value.integer.min = 0;
282 uinfo->value.integer.max = 0xffff;
283 uinfo->count = 4;
284 return 0;
285}
286
97f02e05
TI		 287static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol,
288 struct snd_ctl_elem_value *ucontrol)
1da177e4 289{
97f02e05 290 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 291 unsigned short tmp;
292
293 ucontrol->value.integer.value[0] = 0xf8f2;
294 ucontrol->value.integer.value[1] = 0x4e1f;
295 tmp = reg_read(chip, AK4114_REG_Pc0) | (reg_read(chip, AK4114_REG_Pc1) << 8);
296 ucontrol->value.integer.value[2] = tmp;
297 tmp = reg_read(chip, AK4114_REG_Pd0) | (reg_read(chip, AK4114_REG_Pd1) << 8);
298 ucontrol->value.integer.value[3] = tmp;
299 return 0;
300}
301
97f02e05 302static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 303{
304 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
305 uinfo->count = AK4114_REG_QSUB_SIZE;
306 return 0;
307}
308
97f02e05
TI		 309static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol,
310 struct snd_ctl_elem_value *ucontrol)
1da177e4 311{
97f02e05 312 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 313 unsigned i;
314
315 for (i = 0; i < AK4114_REG_QSUB_SIZE; i++)
316 ucontrol->value.bytes.data[i] = reg_read(chip, AK4114_REG_QSUB_ADDR + i);
317 return 0;
318}
319
320/* Don't forget to change AK4114_CONTROLS define!!! */
97f02e05 321static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
1da177e4
LT		 322{
323 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
324 .name = "IEC958 Parity Errors",
325 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
326 .info = snd_ak4114_in_error_info,
327 .get = snd_ak4114_in_error_get,
239480ab 328 .private_value = AK4114_PARITY_ERRORS,
1da177e4
LT		 329},
330{
331 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
332 .name = "IEC958 V-Bit Errors",
333 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
334 .info = snd_ak4114_in_error_info,
335 .get = snd_ak4114_in_error_get,
239480ab 336 .private_value = AK4114_V_BIT_ERRORS,
1da177e4
LT		 337},
338{
339 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
340 .name = "IEC958 C-CRC Errors",
341 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
342 .info = snd_ak4114_in_error_info,
343 .get = snd_ak4114_in_error_get,
239480ab 344 .private_value = AK4114_CCRC_ERRORS,
1da177e4
LT		 345},
346{
347 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
348 .name = "IEC958 Q-CRC Errors",
349 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
350 .info = snd_ak4114_in_error_info,
351 .get = snd_ak4114_in_error_get,
239480ab 352 .private_value = AK4114_QCRC_ERRORS,
1da177e4
LT		 353},
354{
355 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
356 .name = "IEC958 External Rate",
357 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
358 .info = snd_ak4114_rate_info,
359 .get = snd_ak4114_rate_get,
360},
361{
362 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
363 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
364 .access = SNDRV_CTL_ELEM_ACCESS_READ,
365 .info = snd_ak4114_spdif_mask_info,
366 .get = snd_ak4114_spdif_mask_get,
367},
368{
369 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
370 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
371 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
372 .info = snd_ak4114_spdif_info,
373 .get = snd_ak4114_spdif_playback_get,
374 .put = snd_ak4114_spdif_playback_put,
375},
376{
377 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
378 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
379 .access = SNDRV_CTL_ELEM_ACCESS_READ,
380 .info = snd_ak4114_spdif_mask_info,
381 .get = snd_ak4114_spdif_mask_get,
382},
383{
384 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
385 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
386 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
387 .info = snd_ak4114_spdif_info,
388 .get = snd_ak4114_spdif_get,
389},
390{
391 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
ec8f53fb 392 .name = "IEC958 Preamble Capture Default",
1da177e4
LT		 393 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
394 .info = snd_ak4114_spdif_pinfo,
395 .get = snd_ak4114_spdif_pget,
396},
397{
398 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
399 .name = "IEC958 Q-subcode Capture Default",
400 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
401 .info = snd_ak4114_spdif_qinfo,
402 .get = snd_ak4114_spdif_qget,
403},
404{
405 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
406 .name = "IEC958 Audio",
407 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
408 .info = snd_ak4114_in_bit_info,
409 .get = snd_ak4114_in_bit_get,
410 .private_value = (1<<31) | (1<<8) | AK4114_REG_RCS0,
411},
412{
413 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
414 .name = "IEC958 Non-PCM Bitstream",
415 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
416 .info = snd_ak4114_in_bit_info,
417 .get = snd_ak4114_in_bit_get,
c4116ae7 418 .private_value = (6<<8) | AK4114_REG_RCS0,
1da177e4
LT		 419},
420{
421 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
422 .name = "IEC958 DTS Bitstream",
423 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
424 .info = snd_ak4114_in_bit_info,
425 .get = snd_ak4114_in_bit_get,
c4116ae7
PH		 426 .private_value = (3<<8) | AK4114_REG_RCS0,
427},
428{
429 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
430 .name = "IEC958 PPL Lock Status",
431 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
432 .info = snd_ak4114_in_bit_info,
433 .get = snd_ak4114_in_bit_get,
434 .private_value = (1<<31) | (4<<8) | AK4114_REG_RCS0,
1da177e4
LT		 435}
436};
437
fdafad6f
PH		 438
439static void snd_ak4114_proc_regs_read(struct snd_info_entry *entry,
440 struct snd_info_buffer *buffer)
441{
442 struct ak4114 *ak4114 = entry->private_data;
443 int reg, val;
444 /* all ak4114 registers 0x00 - 0x1f */
445 for (reg = 0; reg < 0x20; reg++) {
446 val = reg_read(ak4114, reg);
447 snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
448 }
449}
450
451static void snd_ak4114_proc_init(struct ak4114 *ak4114)
452{
5a170e9e
TI		 453 snd_card_ro_proc_new(ak4114->card, "ak4114", ak4114,
454 snd_ak4114_proc_regs_read);
fdafad6f
PH		 455}
456
97f02e05
TI		 457int snd_ak4114_build(struct ak4114 *ak4114,
458 struct snd_pcm_substream *ply_substream,
459 struct snd_pcm_substream *cap_substream)
1da177e4 460{
97f02e05 461 struct snd_kcontrol *kctl;
1da177e4
LT		 462 unsigned int idx;
463 int err;
464
5e246b85
TI		 465 if (snd_BUG_ON(!cap_substream))
466 return -EINVAL;
1da177e4
LT		 467 ak4114->playback_substream = ply_substream;
468 ak4114->capture_substream = cap_substream;
469 for (idx = 0; idx < AK4114_CONTROLS; idx++) {
470 kctl = snd_ctl_new1(&snd_ak4114_iec958_controls[idx], ak4114);
471 if (kctl == NULL)
472 return -ENOMEM;
c4116ae7 473 if (strstr(kctl->id.name, "Playback")) {
1da177e4
LT		 474 if (ply_substream == NULL) {
475 snd_ctl_free_one(kctl);
476 ak4114->kctls[idx] = NULL;
477 continue;
478 }
479 kctl->id.device = ply_substream->pcm->device;
480 kctl->id.subdevice = ply_substream->number;
481 } else {
482 kctl->id.device = cap_substream->pcm->device;
483 kctl->id.subdevice = cap_substream->number;
484 }
485 err = snd_ctl_add(ak4114->card, kctl);
486 if (err < 0)
487 return err;
488 ak4114->kctls[idx] = kctl;
489 }
fdafad6f 490 snd_ak4114_proc_init(ak4114);
51354ae3
TI		 491 /* trigger workq */
492 schedule_delayed_work(&ak4114->work, HZ / 10);
1da177e4
LT		 493 return 0;
494}
a850ef8a 495EXPORT_SYMBOL(snd_ak4114_build);
1da177e4 496
51354ae3
TI		 497/* notify kcontrols if any parameters are changed */
498static void ak4114_notify(struct ak4114 *ak4114,
499 unsigned char rcs0, unsigned char rcs1,
500 unsigned char c0, unsigned char c1)
501{
502 if (!ak4114->kctls[0])
503 return;
504
505 if (rcs0 & AK4114_PAR)
506 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
507 &ak4114->kctls[0]->id);
508 if (rcs0 & AK4114_V)
509 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
510 &ak4114->kctls[1]->id);
511 if (rcs1 & AK4114_CCRC)
512 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
513 &ak4114->kctls[2]->id);
514 if (rcs1 & AK4114_QCRC)
515 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
516 &ak4114->kctls[3]->id);
517
518 /* rate change */
519 if (c1 & 0xf0)
520 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
521 &ak4114->kctls[4]->id);
522
523 if ((c0 & AK4114_PEM) | (c0 & AK4114_CINT))
524 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
525 &ak4114->kctls[9]->id);
526 if (c0 & AK4114_QINT)
527 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
528 &ak4114->kctls[10]->id);
529
530 if (c0 & AK4114_AUDION)
531 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
532 &ak4114->kctls[11]->id);
533 if (c0 & AK4114_AUTO)
534 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
535 &ak4114->kctls[12]->id);
536 if (c0 & AK4114_DTSCD)
537 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
538 &ak4114->kctls[13]->id);
c4116ae7
PH		 539 if (c0 & AK4114_UNLCK)
540 snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE,
541 &ak4114->kctls[14]->id);
51354ae3
TI		 542}
543
97f02e05 544int snd_ak4114_external_rate(struct ak4114 *ak4114)
1da177e4
LT		 545{
546 unsigned char rcs1;
547
548 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
549 return external_rate(rcs1);
550}
a850ef8a 551EXPORT_SYMBOL(snd_ak4114_external_rate);
1da177e4 552
97f02e05 553int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
1da177e4 554{
97f02e05 555 struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL;
1da177e4
LT		 556 unsigned long _flags;
557 int res = 0;
558 unsigned char rcs0, rcs1;
559 unsigned char c0, c1;
560
561 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
562 if (flags & AK4114_CHECK_NO_STAT)
563 goto __rate;
564 rcs0 = reg_read(ak4114, AK4114_REG_RCS0);
565 spin_lock_irqsave(&ak4114->lock, _flags);
566 if (rcs0 & AK4114_PAR)
239480ab 567 ak4114->errors[AK4114_PARITY_ERRORS]++;
1da177e4 568 if (rcs1 & AK4114_V)
239480ab 569 ak4114->errors[AK4114_V_BIT_ERRORS]++;
1da177e4 570 if (rcs1 & AK4114_CCRC)
239480ab 571 ak4114->errors[AK4114_CCRC_ERRORS]++;
1da177e4 572 if (rcs1 & AK4114_QCRC)
239480ab 573 ak4114->errors[AK4114_QCRC_ERRORS]++;
1da177e4
LT		 574 c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^
575 (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK));
576 c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0);
577 ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT);
578 ak4114->rcs1 = rcs1;
579 spin_unlock_irqrestore(&ak4114->lock, _flags);
580
51354ae3 581 ak4114_notify(ak4114, rcs0, rcs1, c0, c1);
1da177e4
LT		 582 if (ak4114->change_callback && (c0 | c1) != 0)
583 ak4114->change_callback(ak4114, c0, c1);
584
585 __rate:
586 /* compare rate */
587 res = external_rate(rcs1);
588 if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) {
589 snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags);
590 if (snd_pcm_running(ak4114->capture_substream)) {
99b359ba 591 // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
1da177e4 592 snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING);
1da177e4
LT		 593 res = 1;
594 }
595 snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags);
596 }
597 return res;
598}
a850ef8a 599EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);
1da177e4 600
c4028958 601static void ak4114_stats(struct work_struct *work)
1da177e4 602{
c4028958 603 struct ak4114 *chip = container_of(work, struct ak4114, work.work);
1da177e4 604
4161b450 605 if (atomic_inc_return(&chip->wq_processing) == 1)
841b23d4 606 snd_ak4114_check_rate_and_errors(chip, chip->check_flags);
4161b450
TI		 607 if (atomic_dec_and_test(&chip->wq_processing))
608 schedule_delayed_work(&chip->work, HZ / 10);
1da177e4 609}
1293617c
TI		 610
611#ifdef CONFIG_PM
612void snd_ak4114_suspend(struct ak4114 *chip)
613{
614 atomic_inc(&chip->wq_processing); /* don't schedule new work */
615 cancel_delayed_work_sync(&chip->work);
616}
617EXPORT_SYMBOL(snd_ak4114_suspend);
618
619void snd_ak4114_resume(struct ak4114 *chip)
620{
621 atomic_dec(&chip->wq_processing);
622 snd_ak4114_reinit(chip);
623}
624EXPORT_SYMBOL(snd_ak4114_resume);
625#endif
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