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Merge tag 'soc-ep93xx-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
[linux-block.git] / sound / i2c / other / ak4114.c
CommitLineData
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
97f02e05 41static void snd_ak4114_free(struct ak4114 *chip)
1da177e4 42{
4161b450 43 atomic_inc(&chip->wq_processing); /* don't schedule new work */
5b84ba26 44 cancel_delayed_work_sync(&chip->work);
1da177e4
LT		 45 kfree(chip);
46}
47
97f02e05 48static int snd_ak4114_dev_free(struct snd_device *device)
1da177e4 49{
97f02e05 50 struct ak4114 *chip = device->device_data;
1da177e4
LT		 51 snd_ak4114_free(chip);
52 return 0;
53}
54
97f02e05 55int snd_ak4114_create(struct snd_card *card,
1da177e4 56 ak4114_read_t *read, ak4114_write_t *write,
e12483e0 57 const unsigned char pgm[6], const unsigned char txcsb[5],
97f02e05 58 void *private_data, struct ak4114 **r_ak4114)
1da177e4 59{
97f02e05 60 struct ak4114 *chip;
1da177e4
LT		 61 int err = 0;
62 unsigned char reg;
d23015c1 63 static const struct snd_device_ops ops = {
1da177e4
LT		 64 .dev_free = snd_ak4114_dev_free,
65 };
66
561b220a 67 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1da177e4
LT		 68 if (chip == NULL)
69 return -ENOMEM;
70 spin_lock_init(&chip->lock);
71 chip->card = card;
72 chip->read = read;
73 chip->write = write;
74 chip->private_data = private_data;
3b6baa5a 75 INIT_DELAYED_WORK(&chip->work, ak4114_stats);
4161b450 76 atomic_set(&chip->wq_processing, 0);
1781e78c 77 mutex_init(&chip->reinit_mutex);
1da177e4 78
e12483e0 79 for (reg = 0; reg < 6; reg++)
1da177e4
LT		 80 chip->regmap[reg] = pgm[reg];
81 for (reg = 0; reg < 5; reg++)
82 chip->txcsb[reg] = txcsb[reg];
83
51354ae3 84 ak4114_init_regs(chip);
1da177e4
LT		 85
86 chip->rcs0 = reg_read(chip, AK4114_REG_RCS0) & ~(AK4114_QINT | AK4114_CINT);
87 chip->rcs1 = reg_read(chip, AK4114_REG_RCS1);
88
dd1431e5
TI		 89 err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops);
90 if (err < 0)
1da177e4
LT		 91 goto __fail;
92
93 if (r_ak4114)
94 *r_ak4114 = chip;
95 return 0;
96
97 __fail:
98 snd_ak4114_free(chip);
5137d6da 99 return err;
1da177e4 100}
a850ef8a 101EXPORT_SYMBOL(snd_ak4114_create);
1da177e4 102
97f02e05 103void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val)
1da177e4
LT		 104{
105 if (reg <= AK4114_REG_INT1_MASK)
106 reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val);
107 else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4)
1ab774e0
JD		 108 reg_write(chip, reg,
109 (chip->txcsb[reg-AK4114_REG_TXCSB0] & ~mask) | val);
1da177e4 110}
a850ef8a 111EXPORT_SYMBOL(snd_ak4114_reg_write);
1da177e4 112
51354ae3 113static void ak4114_init_regs(struct ak4114 *chip)
1da177e4
LT		 114{
115 unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg;
116
1da177e4
LT		 117 /* bring the chip to reset state and powerdown state */
118 reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN));
119 udelay(200);
120 /* release reset, but leave powerdown */
121 reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN);
122 udelay(200);
e12483e0 123 for (reg = 1; reg < 6; reg++)
1da177e4
LT		 124 reg_write(chip, reg, chip->regmap[reg]);
125 for (reg = 0; reg < 5; reg++)
126 reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]);
127 /* release powerdown, everything is initialized now */
128 reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN);
51354ae3
TI		 129}
130
131void snd_ak4114_reinit(struct ak4114 *chip)
132{
4161b450
TI		 133 if (atomic_inc_return(&chip->wq_processing) == 1)
134 cancel_delayed_work_sync(&chip->work);
1781e78c 135 mutex_lock(&chip->reinit_mutex);
51354ae3 136 ak4114_init_regs(chip);
1781e78c 137 mutex_unlock(&chip->reinit_mutex);
1da177e4 138 /* bring up statistics / event queing */
4161b450 139 if (atomic_dec_and_test(&chip->wq_processing))
51354ae3 140 schedule_delayed_work(&chip->work, HZ / 10);
1da177e4 141}
a850ef8a 142EXPORT_SYMBOL(snd_ak4114_reinit);
1da177e4
LT		 143
144static unsigned int external_rate(unsigned char rcs1)
145{
146 switch (rcs1 & (AK4114_FS0|AK4114_FS1|AK4114_FS2|AK4114_FS3)) {
147 case AK4114_FS_32000HZ: return 32000;
148 case AK4114_FS_44100HZ: return 44100;
149 case AK4114_FS_48000HZ: return 48000;
150 case AK4114_FS_88200HZ: return 88200;
151 case AK4114_FS_96000HZ: return 96000;
152 case AK4114_FS_176400HZ: return 176400;
153 case AK4114_FS_192000HZ: return 192000;
154 default: return 0;
155 }
156}
157
97f02e05
TI		 158static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol,
159 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 160{
161 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
162 uinfo->count = 1;
163 uinfo->value.integer.min = 0;
164 uinfo->value.integer.max = LONG_MAX;
165 return 0;
166}
167
97f02e05
TI		 168static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol,
169 struct snd_ctl_elem_value *ucontrol)
1da177e4 170{
97f02e05 171 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 172
173 spin_lock_irq(&chip->lock);
239480ab
TI		 174 ucontrol->value.integer.value[0] =
175 chip->errors[kcontrol->private_value];
176 chip->errors[kcontrol->private_value] = 0;
1da177e4
LT		 177 spin_unlock_irq(&chip->lock);
178 return 0;
179}
180
a5ce8890 181#define snd_ak4114_in_bit_info snd_ctl_boolean_mono_info
1da177e4 182
97f02e05
TI		 183static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol,
184 struct snd_ctl_elem_value *ucontrol)
1da177e4 185{
97f02e05 186 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 187 unsigned char reg = kcontrol->private_value & 0xff;
188 unsigned char bit = (kcontrol->private_value >> 8) & 0xff;
189 unsigned char inv = (kcontrol->private_value >> 31) & 1;
190
191 ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv;
192 return 0;
193}
194
97f02e05
TI		 195static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol,
196 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 197{
198 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
199 uinfo->count = 1;
200 uinfo->value.integer.min = 0;
201 uinfo->value.integer.max = 192000;
202 return 0;
203}
204
97f02e05
TI		 205static int snd_ak4114_rate_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
210 ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1));
211 return 0;
212}
213
97f02e05 214static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 215{
216 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
217 uinfo->count = 1;
218 return 0;
219}
220
97f02e05
TI		 221static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol,
222 struct snd_ctl_elem_value *ucontrol)
1da177e4 223{
97f02e05 224 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 225 unsigned i;
226
227 for (i = 0; i < AK4114_REG_RXCSB_SIZE; i++)
228 ucontrol->value.iec958.status[i] = reg_read(chip, AK4114_REG_RXCSB0 + i);
229 return 0;
230}
231
97f02e05
TI		 232static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol,
233 struct snd_ctl_elem_value *ucontrol)
1da177e4 234{
97f02e05 235 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 236 unsigned i;
237
238 for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++)
239 ucontrol->value.iec958.status[i] = chip->txcsb[i];
240 return 0;
241}
242
97f02e05
TI		 243static int snd_ak4114_spdif_playback_put(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_TXCSB_SIZE; i++)
250 reg_write(chip, AK4114_REG_TXCSB0 + i, ucontrol->value.iec958.status[i]);
251 return 0;
252}
253
97f02e05 254static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 255{
256 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
257 uinfo->count = 1;
258 return 0;
259}
260
97f02e05
TI		 261static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol,
262 struct snd_ctl_elem_value *ucontrol)
1da177e4
LT		 263{
264 memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE);
265 return 0;
266}
267
97f02e05 268static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 269{
270 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
271 uinfo->value.integer.min = 0;
272 uinfo->value.integer.max = 0xffff;
273 uinfo->count = 4;
274 return 0;
275}
276
97f02e05
TI		 277static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol,
278 struct snd_ctl_elem_value *ucontrol)
1da177e4 279{
97f02e05 280 struct ak4114 *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 281 unsigned short tmp;
282
283 ucontrol->value.integer.value[0] = 0xf8f2;
284 ucontrol->value.integer.value[1] = 0x4e1f;
285 tmp = reg_read(chip, AK4114_REG_Pc0) | (reg_read(chip, AK4114_REG_Pc1) << 8);
286 ucontrol->value.integer.value[2] = tmp;
287 tmp = reg_read(chip, AK4114_REG_Pd0) | (reg_read(chip, AK4114_REG_Pd1) << 8);
288 ucontrol->value.integer.value[3] = tmp;
289 return 0;
290}
291
97f02e05 292static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 293{
294 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
295 uinfo->count = AK4114_REG_QSUB_SIZE;
296 return 0;
297}
298
97f02e05
TI		 299static int snd_ak4114_spdif_qget(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 i;
304
305 for (i = 0; i < AK4114_REG_QSUB_SIZE; i++)
306 ucontrol->value.bytes.data[i] = reg_read(chip, AK4114_REG_QSUB_ADDR + i);
307 return 0;
308}
309
310/* Don't forget to change AK4114_CONTROLS define!!! */
0da2c47a 311static const struct snd_kcontrol_new snd_ak4114_iec958_controls[] = {
1da177e4
LT		 312{
313 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
314 .name = "IEC958 Parity Errors",
315 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
316 .info = snd_ak4114_in_error_info,
317 .get = snd_ak4114_in_error_get,
239480ab 318 .private_value = AK4114_PARITY_ERRORS,
1da177e4
LT		 319},
320{
321 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
322 .name = "IEC958 V-Bit Errors",
323 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
324 .info = snd_ak4114_in_error_info,
325 .get = snd_ak4114_in_error_get,
239480ab 326 .private_value = AK4114_V_BIT_ERRORS,
1da177e4
LT		 327},
328{
329 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
330 .name = "IEC958 C-CRC Errors",
331 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
332 .info = snd_ak4114_in_error_info,
333 .get = snd_ak4114_in_error_get,
239480ab 334 .private_value = AK4114_CCRC_ERRORS,
1da177e4
LT		 335},
336{
337 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
338 .name = "IEC958 Q-CRC Errors",
339 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
340 .info = snd_ak4114_in_error_info,
341 .get = snd_ak4114_in_error_get,
239480ab 342 .private_value = AK4114_QCRC_ERRORS,
1da177e4
LT		 343},
344{
345 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
346 .name = "IEC958 External Rate",
347 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
348 .info = snd_ak4114_rate_info,
349 .get = snd_ak4114_rate_get,
350},
351{
352 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
353 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
354 .access = SNDRV_CTL_ELEM_ACCESS_READ,
355 .info = snd_ak4114_spdif_mask_info,
356 .get = snd_ak4114_spdif_mask_get,
357},
358{
359 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
360 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
361 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
362 .info = snd_ak4114_spdif_info,
363 .get = snd_ak4114_spdif_playback_get,
364 .put = snd_ak4114_spdif_playback_put,
365},
366{
367 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
368 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK),
369 .access = SNDRV_CTL_ELEM_ACCESS_READ,
370 .info = snd_ak4114_spdif_mask_info,
371 .get = snd_ak4114_spdif_mask_get,
372},
373{
374 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
375 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
376 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
377 .info = snd_ak4114_spdif_info,
378 .get = snd_ak4114_spdif_get,
379},
380{
381 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
ec8f53fb 382 .name = "IEC958 Preamble Capture Default",
1da177e4
LT		 383 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
384 .info = snd_ak4114_spdif_pinfo,
385 .get = snd_ak4114_spdif_pget,
386},
387{
388 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
389 .name = "IEC958 Q-subcode Capture Default",
390 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
391 .info = snd_ak4114_spdif_qinfo,
392 .get = snd_ak4114_spdif_qget,
393},
394{
395 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
396 .name = "IEC958 Audio",
397 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
398 .info = snd_ak4114_in_bit_info,
399 .get = snd_ak4114_in_bit_get,
400 .private_value = (1<<31) | (1<<8) | AK4114_REG_RCS0,
401},
402{
403 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
404 .name = "IEC958 Non-PCM Bitstream",
405 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
406 .info = snd_ak4114_in_bit_info,
407 .get = snd_ak4114_in_bit_get,
c4116ae7 408 .private_value = (6<<8) | AK4114_REG_RCS0,
1da177e4
LT		 409},
410{
411 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
412 .name = "IEC958 DTS Bitstream",
413 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
414 .info = snd_ak4114_in_bit_info,
415 .get = snd_ak4114_in_bit_get,
c4116ae7
PH		 416 .private_value = (3<<8) | AK4114_REG_RCS0,
417},
418{
419 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
420 .name = "IEC958 PPL Lock Status",
421 .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
422 .info = snd_ak4114_in_bit_info,
423 .get = snd_ak4114_in_bit_get,
424 .private_value = (1<<31) | (4<<8) | AK4114_REG_RCS0,
1da177e4
LT		 425}
426};
427
fdafad6f
PH		 428
429static void snd_ak4114_proc_regs_read(struct snd_info_entry *entry,
430 struct snd_info_buffer *buffer)
431{
432 struct ak4114 *ak4114 = entry->private_data;
433 int reg, val;
434 /* all ak4114 registers 0x00 - 0x1f */
435 for (reg = 0; reg < 0x20; reg++) {
436 val = reg_read(ak4114, reg);
437 snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
438 }
439}
440
441static void snd_ak4114_proc_init(struct ak4114 *ak4114)
442{
5a170e9e
TI		 443 snd_card_ro_proc_new(ak4114->card, "ak4114", ak4114,
444 snd_ak4114_proc_regs_read);
fdafad6f
PH		 445}
446
97f02e05
TI		 447int snd_ak4114_build(struct ak4114 *ak4114,
448 struct snd_pcm_substream *ply_substream,
449 struct snd_pcm_substream *cap_substream)
1da177e4 450{
97f02e05 451 struct snd_kcontrol *kctl;
1da177e4
LT		 452 unsigned int idx;
453 int err;
454
5e246b85
TI		 455 if (snd_BUG_ON(!cap_substream))
456 return -EINVAL;
1da177e4
LT		 457 ak4114->playback_substream = ply_substream;
458 ak4114->capture_substream = cap_substream;
459 for (idx = 0; idx < AK4114_CONTROLS; idx++) {
460 kctl = snd_ctl_new1(&snd_ak4114_iec958_controls[idx], ak4114);
461 if (kctl == NULL)
462 return -ENOMEM;
c4116ae7 463 if (strstr(kctl->id.name, "Playback")) {
1da177e4
LT		 464 if (ply_substream == NULL) {
465 snd_ctl_free_one(kctl);
466 ak4114->kctls[idx] = NULL;
467 continue;
468 }
469 kctl->id.device = ply_substream->pcm->device;
470 kctl->id.subdevice = ply_substream->number;
471 } else {
472 kctl->id.device = cap_substream->pcm->device;
473 kctl->id.subdevice = cap_substream->number;
474 }
475 err = snd_ctl_add(ak4114->card, kctl);
476 if (err < 0)
477 return err;
478 ak4114->kctls[idx] = kctl;
479 }
fdafad6f 480 snd_ak4114_proc_init(ak4114);
51354ae3
TI		 481 /* trigger workq */
482 schedule_delayed_work(&ak4114->work, HZ / 10);
1da177e4
LT		 483 return 0;
484}
a850ef8a 485EXPORT_SYMBOL(snd_ak4114_build);
1da177e4 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}
a850ef8a 541EXPORT_SYMBOL(snd_ak4114_external_rate);
1da177e4 542
97f02e05 543int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
1da177e4 544{
97f02e05 545 struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL;
1da177e4
LT		 546 unsigned long _flags;
547 int res = 0;
548 unsigned char rcs0, rcs1;
549 unsigned char c0, c1;
550
551 rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
552 if (flags & AK4114_CHECK_NO_STAT)
553 goto __rate;
554 rcs0 = reg_read(ak4114, AK4114_REG_RCS0);
555 spin_lock_irqsave(&ak4114->lock, _flags);
556 if (rcs0 & AK4114_PAR)
239480ab 557 ak4114->errors[AK4114_PARITY_ERRORS]++;
1da177e4 558 if (rcs1 & AK4114_V)
239480ab 559 ak4114->errors[AK4114_V_BIT_ERRORS]++;
1da177e4 560 if (rcs1 & AK4114_CCRC)
239480ab 561 ak4114->errors[AK4114_CCRC_ERRORS]++;
1da177e4 562 if (rcs1 & AK4114_QCRC)
239480ab 563 ak4114->errors[AK4114_QCRC_ERRORS]++;
1da177e4
LT		 564 c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^
565 (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK));
566 c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0);
567 ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT);
568 ak4114->rcs1 = rcs1;
569 spin_unlock_irqrestore(&ak4114->lock, _flags);
570
51354ae3 571 ak4114_notify(ak4114, rcs0, rcs1, c0, c1);
1da177e4
LT		 572 if (ak4114->change_callback && (c0 | c1) != 0)
573 ak4114->change_callback(ak4114, c0, c1);
574
575 __rate:
576 /* compare rate */
577 res = external_rate(rcs1);
578 if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) {
579 snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags);
580 if (snd_pcm_running(ak4114->capture_substream)) {
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}
a850ef8a 588EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);
1da177e4 589
c4028958 590static void ak4114_stats(struct work_struct *work)
1da177e4 591{
c4028958 592 struct ak4114 *chip = container_of(work, struct ak4114, work.work);
1da177e4 593
4161b450 594 if (atomic_inc_return(&chip->wq_processing) == 1)
841b23d4 595 snd_ak4114_check_rate_and_errors(chip, chip->check_flags);
4161b450
TI		 596 if (atomic_dec_and_test(&chip->wq_processing))
597 schedule_delayed_work(&chip->work, HZ / 10);
1da177e4 598}
1293617c
TI		 599
600#ifdef CONFIG_PM
601void snd_ak4114_suspend(struct ak4114 *chip)
602{
603 atomic_inc(&chip->wq_processing); /* don't schedule new work */
604 cancel_delayed_work_sync(&chip->work);
605}
606EXPORT_SYMBOL(snd_ak4114_suspend);
607
608void snd_ak4114_resume(struct ak4114 *chip)
609{
610 atomic_dec(&chip->wq_processing);
611 snd_ak4114_reinit(chip);
612}
613EXPORT_SYMBOL(snd_ak4114_resume);
614#endif
Linux 6.x block layer and io_uring tree(s)