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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * ALSA SoC TLV320AIC23 codec driver
4 *
5 * Author: Arun KS, <arunks@mistralsolutions.com>
6 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
7 *
8 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
9 *
10 * Notes:
11 * The AIC23 is a driver for a low power stereo audio
12 * codec tlv320aic23
13 *
14 * The machine layer should disable unsupported inputs/outputs by
15 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
16 */
17
18#include <linux/module.h>
19#include <linux/moduleparam.h>
20#include <linux/init.h>
21#include <linux/delay.h>
22#include <linux/pm.h>
23#include <linux/regmap.h>
24#include <linux/slab.h>
25#include <sound/core.h>
26#include <sound/pcm.h>
27#include <sound/pcm_params.h>
28#include <sound/soc.h>
29#include <sound/tlv.h>
30#include <sound/initval.h>
31
32#include "tlv320aic23.h"
33
34/*
35 * AIC23 register cache
36 */
37static const struct reg_default tlv320aic23_reg[] = {
38 { 0, 0x0097 },
39 { 1, 0x0097 },
40 { 2, 0x00F9 },
41 { 3, 0x00F9 },
42 { 4, 0x001A },
43 { 5, 0x0004 },
44 { 6, 0x0007 },
45 { 7, 0x0001 },
46 { 8, 0x0020 },
47 { 9, 0x0000 },
48};
49
50const struct regmap_config tlv320aic23_regmap = {
51 .reg_bits = 7,
52 .val_bits = 9,
53
54 .max_register = TLV320AIC23_RESET,
55 .reg_defaults = tlv320aic23_reg,
56 .num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),
57 .cache_type = REGCACHE_RBTREE,
58};
59EXPORT_SYMBOL(tlv320aic23_regmap);
60
61static const char *rec_src_text[] = { "Line", "Mic" };
62static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
63
64static SOC_ENUM_SINGLE_DECL(rec_src_enum,
65 TLV320AIC23_ANLG, 2, rec_src_text);
66
67static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
68SOC_DAPM_ENUM("Input Select", rec_src_enum);
69
70static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,
71 TLV320AIC23_DIGT, 1, deemph_text);
72
73static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
74static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
75static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
76
77static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
78 struct snd_ctl_elem_value *ucontrol)
79{
80 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
81 u16 val, reg;
82
83 val = (ucontrol->value.integer.value[0] & 0x07);
84
85 /* linear conversion to userspace
86 * 000 = -6db
87 * 001 = -9db
88 * 010 = -12db
89 * 011 = -18db (Min)
90 * 100 = 0db (Max)
91 */
92 val = (val >= 4) ? 4 : (3 - val);
93
94 reg = snd_soc_component_read(component, TLV320AIC23_ANLG) & (~0x1C0);
95 snd_soc_component_write(component, TLV320AIC23_ANLG, reg | (val << 6));
96
97 return 0;
98}
99
100static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
101 struct snd_ctl_elem_value *ucontrol)
102{
103 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
104 u16 val;
105
106 val = snd_soc_component_read(component, TLV320AIC23_ANLG) & (0x1C0);
107 val = val >> 6;
108 val = (val >= 4) ? 4 : (3 - val);
109 ucontrol->value.integer.value[0] = val;
110 return 0;
111
112}
113
114static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
115 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
116 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
117 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
118 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
119 TLV320AIC23_RINVOL, 7, 1, 0),
120 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
121 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
122 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
123 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
124 SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,
125 snd_soc_tlv320aic23_get_volsw,
126 snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),
127 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
128};
129
130/* PGA Mixer controls for Line and Mic switch */
131static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
132 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
133 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
134 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
135};
136
137static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
138 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
139 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
140 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
141 &tlv320aic23_rec_src_mux_controls),
142 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
143 &tlv320aic23_output_mixer_controls[0],
144 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
145 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
146 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
147
148 SND_SOC_DAPM_OUTPUT("LHPOUT"),
149 SND_SOC_DAPM_OUTPUT("RHPOUT"),
150 SND_SOC_DAPM_OUTPUT("LOUT"),
151 SND_SOC_DAPM_OUTPUT("ROUT"),
152
153 SND_SOC_DAPM_INPUT("LLINEIN"),
154 SND_SOC_DAPM_INPUT("RLINEIN"),
155
156 SND_SOC_DAPM_INPUT("MICIN"),
157};
158
159static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
160 /* Output Mixer */
161 {"Output Mixer", "Line Bypass Switch", "Line Input"},
162 {"Output Mixer", "Playback Switch", "DAC"},
163 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
164
165 /* Outputs */
166 {"RHPOUT", NULL, "Output Mixer"},
167 {"LHPOUT", NULL, "Output Mixer"},
168 {"LOUT", NULL, "Output Mixer"},
169 {"ROUT", NULL, "Output Mixer"},
170
171 /* Inputs */
172 {"Line Input", NULL, "LLINEIN"},
173 {"Line Input", NULL, "RLINEIN"},
174 {"Mic Input", NULL, "MICIN"},
175
176 /* input mux */
177 {"Capture Source", "Line", "Line Input"},
178 {"Capture Source", "Mic", "Mic Input"},
179 {"ADC", NULL, "Capture Source"},
180
181};
182
183/* AIC23 driver data */
184struct aic23 {
185 struct regmap *regmap;
186 int mclk;
187 int requested_adc;
188 int requested_dac;
189};
190
191/*
192 * Common Crystals used
193 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k
194 * 12.0000 Mhz /125 = *96k /136 = 88.235K
195 * 12.2880 Mhz /128 = *96k /192 = 64k
196 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
197 * 18.4320 Mhz /128 = 144k /192 = *96k
198 */
199
200/*
201 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
202 * USB BOSR 0-250/2 = 125, 1-272/2 = 136
203 */
204static const int bosr_usb_divisor_table[] = {
205 128, 125, 192, 136
206};
207#define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
208#define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15))
209static const unsigned short sr_valid_mask[] = {
210 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/
211 LOWER_GROUP, /* Usb, bosr - 0*/
212 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/
213 UPPER_GROUP, /* Usb, bosr - 1*/
214};
215/*
216 * Every divisor is a factor of 11*12
217 */
218#define SR_MULT (11*12)
219#define A(x) (SR_MULT/x)
220static const unsigned char sr_adc_mult_table[] = {
221 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1),
222 A(2), A(2), A(11), A(11), 0, 0, 0, A(1)
223};
224static const unsigned char sr_dac_mult_table[] = {
225 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1),
226 A(2), A(11), A(2), A(11), 0, 0, 0, A(1)
227};
228
229static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
230 int dac, int dac_l, int dac_h, int need_dac)
231{
232 if ((adc >= adc_l) && (adc <= adc_h) &&
233 (dac >= dac_l) && (dac <= dac_h)) {
234 int diff_adc = need_adc - adc;
235 int diff_dac = need_dac - dac;
236 return abs(diff_adc) + abs(diff_dac);
237 }
238 return UINT_MAX;
239}
240
241static int find_rate(int mclk, u32 need_adc, u32 need_dac)
242{
243 int i, j;
244 int best_i = -1;
245 int best_j = -1;
246 int best_div = 0;
247 unsigned best_score = UINT_MAX;
248 int adc_l, adc_h, dac_l, dac_h;
249
250 need_adc *= SR_MULT;
251 need_dac *= SR_MULT;
252 /*
253 * rates given are +/- 1/32
254 */
255 adc_l = need_adc - (need_adc >> 5);
256 adc_h = need_adc + (need_adc >> 5);
257 dac_l = need_dac - (need_dac >> 5);
258 dac_h = need_dac + (need_dac >> 5);
259 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
260 int base = mclk / bosr_usb_divisor_table[i];
261 int mask = sr_valid_mask[i];
262 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
263 j++, mask >>= 1) {
264 int adc;
265 int dac;
266 int score;
267 if ((mask & 1) == 0)
268 continue;
269 adc = base * sr_adc_mult_table[j];
270 dac = base * sr_dac_mult_table[j];
271 score = get_score(adc, adc_l, adc_h, need_adc,
272 dac, dac_l, dac_h, need_dac);
273 if (best_score > score) {
274 best_score = score;
275 best_i = i;
276 best_j = j;
277 best_div = 0;
278 }
279 score = get_score((adc >> 1), adc_l, adc_h, need_adc,
280 (dac >> 1), dac_l, dac_h, need_dac);
281 /* prefer to have a /2 */
282 if ((score != UINT_MAX) && (best_score >= score)) {
283 best_score = score;
284 best_i = i;
285 best_j = j;
286 best_div = 1;
287 }
288 }
289 }
290 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
291}
292
293#ifdef DEBUG
294static void get_current_sample_rates(struct snd_soc_component *component, int mclk,
295 u32 *sample_rate_adc, u32 *sample_rate_dac)
296{
297 int src = snd_soc_component_read(component, TLV320AIC23_SRATE);
298 int sr = (src >> 2) & 0x0f;
299 int val = (mclk / bosr_usb_divisor_table[src & 3]);
300 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
301 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
302 if (src & TLV320AIC23_CLKIN_HALF) {
303 adc >>= 1;
304 dac >>= 1;
305 }
306 *sample_rate_adc = adc;
307 *sample_rate_dac = dac;
308}
309#endif
310
311static int set_sample_rate_control(struct snd_soc_component *component, int mclk,
312 u32 sample_rate_adc, u32 sample_rate_dac)
313{
314 /* Search for the right sample rate */
315 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
316 if (data < 0) {
317 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
318 __func__, sample_rate_adc, sample_rate_dac);
319 return -EINVAL;
320 }
321 snd_soc_component_write(component, TLV320AIC23_SRATE, data);
322#ifdef DEBUG
323 {
324 u32 adc, dac;
325 get_current_sample_rates(component, mclk, &adc, &dac);
326 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
327 adc, dac, data);
328 }
329#endif
330 return 0;
331}
332
333static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
334 struct snd_pcm_hw_params *params,
335 struct snd_soc_dai *dai)
336{
337 struct snd_soc_component *component = dai->component;
338 u16 iface_reg;
339 int ret;
340 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
341 u32 sample_rate_adc = aic23->requested_adc;
342 u32 sample_rate_dac = aic23->requested_dac;
343 u32 sample_rate = params_rate(params);
344
345 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
346 aic23->requested_dac = sample_rate_dac = sample_rate;
347 if (!sample_rate_adc)
348 sample_rate_adc = sample_rate;
349 } else {
350 aic23->requested_adc = sample_rate_adc = sample_rate;
351 if (!sample_rate_dac)
352 sample_rate_dac = sample_rate;
353 }
354 ret = set_sample_rate_control(component, aic23->mclk, sample_rate_adc,
355 sample_rate_dac);
356 if (ret < 0)
357 return ret;
358
359 iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
360
361 switch (params_width(params)) {
362 case 16:
363 break;
364 case 20:
365 iface_reg |= (0x01 << 2);
366 break;
367 case 24:
368 iface_reg |= (0x02 << 2);
369 break;
370 case 32:
371 iface_reg |= (0x03 << 2);
372 break;
373 }
374 snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
375
376 return 0;
377}
378
379static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
380 struct snd_soc_dai *dai)
381{
382 struct snd_soc_component *component = dai->component;
383
384 /* set active */
385 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0001);
386
387 return 0;
388}
389
390static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
391 struct snd_soc_dai *dai)
392{
393 struct snd_soc_component *component = dai->component;
394 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
395
396 /* deactivate */
397 if (!snd_soc_component_active(component)) {
398 udelay(50);
399 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
400 }
401 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
402 aic23->requested_dac = 0;
403 else
404 aic23->requested_adc = 0;
405}
406
407static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute, int direction)
408{
409 struct snd_soc_component *component = dai->component;
410 u16 reg;
411
412 reg = snd_soc_component_read(component, TLV320AIC23_DIGT);
413 if (mute)
414 reg |= TLV320AIC23_DACM_MUTE;
415
416 else
417 reg &= ~TLV320AIC23_DACM_MUTE;
418
419 snd_soc_component_write(component, TLV320AIC23_DIGT, reg);
420
421 return 0;
422}
423
424static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
425 unsigned int fmt)
426{
427 struct snd_soc_component *component = codec_dai->component;
428 u16 iface_reg;
429
430 iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & (~0x03);
431
432 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
433 case SND_SOC_DAIFMT_CBP_CFP:
434 iface_reg |= TLV320AIC23_MS_MASTER;
435 break;
436 case SND_SOC_DAIFMT_CBC_CFC:
437 iface_reg &= ~TLV320AIC23_MS_MASTER;
438 break;
439 default:
440 return -EINVAL;
441
442 }
443
444 /* interface format */
445 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
446 case SND_SOC_DAIFMT_I2S:
447 iface_reg |= TLV320AIC23_FOR_I2S;
448 break;
449 case SND_SOC_DAIFMT_DSP_A:
450 iface_reg |= TLV320AIC23_LRP_ON;
451 fallthrough;
452 case SND_SOC_DAIFMT_DSP_B:
453 iface_reg |= TLV320AIC23_FOR_DSP;
454 break;
455 case SND_SOC_DAIFMT_RIGHT_J:
456 break;
457 case SND_SOC_DAIFMT_LEFT_J:
458 iface_reg |= TLV320AIC23_FOR_LJUST;
459 break;
460 default:
461 return -EINVAL;
462
463 }
464
465 snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
466
467 return 0;
468}
469
470static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
471 int clk_id, unsigned int freq, int dir)
472{
473 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);
474 aic23->mclk = freq;
475 return 0;
476}
477
478static int tlv320aic23_set_bias_level(struct snd_soc_component *component,
479 enum snd_soc_bias_level level)
480{
481 u16 reg = snd_soc_component_read(component, TLV320AIC23_PWR) & 0x17f;
482
483 switch (level) {
484 case SND_SOC_BIAS_ON:
485 /* vref/mid, osc on, dac unmute */
486 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \
487 TLV320AIC23_DAC_OFF);
488 snd_soc_component_write(component, TLV320AIC23_PWR, reg);
489 break;
490 case SND_SOC_BIAS_PREPARE:
491 break;
492 case SND_SOC_BIAS_STANDBY:
493 /* everything off except vref/vmid, */
494 snd_soc_component_write(component, TLV320AIC23_PWR,
495 reg | TLV320AIC23_CLK_OFF);
496 break;
497 case SND_SOC_BIAS_OFF:
498 /* everything off, dac mute, inactive */
499 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
500 snd_soc_component_write(component, TLV320AIC23_PWR, 0x1ff);
501 break;
502 }
503 return 0;
504}
505
506#define AIC23_RATES SNDRV_PCM_RATE_8000_96000
507#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
508 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
509
510static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {
511 .prepare = tlv320aic23_pcm_prepare,
512 .hw_params = tlv320aic23_hw_params,
513 .shutdown = tlv320aic23_shutdown,
514 .mute_stream = tlv320aic23_mute,
515 .set_fmt = tlv320aic23_set_dai_fmt,
516 .set_sysclk = tlv320aic23_set_dai_sysclk,
517 .no_capture_mute = 1,
518};
519
520static struct snd_soc_dai_driver tlv320aic23_dai = {
521 .name = "tlv320aic23-hifi",
522 .playback = {
523 .stream_name = "Playback",
524 .channels_min = 2,
525 .channels_max = 2,
526 .rates = AIC23_RATES,
527 .formats = AIC23_FORMATS,},
528 .capture = {
529 .stream_name = "Capture",
530 .channels_min = 2,
531 .channels_max = 2,
532 .rates = AIC23_RATES,
533 .formats = AIC23_FORMATS,},
534 .ops = &tlv320aic23_dai_ops,
535};
536
537static int tlv320aic23_resume(struct snd_soc_component *component)
538{
539 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
540 regcache_mark_dirty(aic23->regmap);
541 regcache_sync(aic23->regmap);
542
543 return 0;
544}
545
546static int tlv320aic23_component_probe(struct snd_soc_component *component)
547{
548 /* Reset codec */
549 snd_soc_component_write(component, TLV320AIC23_RESET, 0);
550
551 snd_soc_component_write(component, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
552
553 /* Unmute input */
554 snd_soc_component_update_bits(component, TLV320AIC23_LINVOL,
555 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
556
557 snd_soc_component_update_bits(component, TLV320AIC23_RINVOL,
558 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
559
560 snd_soc_component_update_bits(component, TLV320AIC23_ANLG,
561 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
562 0);
563
564 /* Default output volume */
565 snd_soc_component_write(component, TLV320AIC23_LCHNVOL,
566 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
567 snd_soc_component_write(component, TLV320AIC23_RCHNVOL,
568 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
569
570 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x1);
571
572 return 0;
573}
574
575static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = {
576 .probe = tlv320aic23_component_probe,
577 .resume = tlv320aic23_resume,
578 .set_bias_level = tlv320aic23_set_bias_level,
579 .controls = tlv320aic23_snd_controls,
580 .num_controls = ARRAY_SIZE(tlv320aic23_snd_controls),
581 .dapm_widgets = tlv320aic23_dapm_widgets,
582 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
583 .dapm_routes = tlv320aic23_intercon,
584 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),
585 .suspend_bias_off = 1,
586 .idle_bias_on = 1,
587 .use_pmdown_time = 1,
588 .endianness = 1,
589};
590
591int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
592{
593 struct aic23 *aic23;
594
595 if (IS_ERR(regmap))
596 return PTR_ERR(regmap);
597
598 aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
599 if (aic23 == NULL)
600 return -ENOMEM;
601
602 aic23->regmap = regmap;
603
604 dev_set_drvdata(dev, aic23);
605
606 return devm_snd_soc_register_component(dev,
607 &soc_component_dev_tlv320aic23,
608 &tlv320aic23_dai, 1);
609}
610EXPORT_SYMBOL(tlv320aic23_probe);
611
612MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
613MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
614MODULE_LICENSE("GPL");
1/*
2 * ALSA SoC TLV320AIC23 codec driver
3 *
4 * Author: Arun KS, <arunks@mistralsolutions.com>
5 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
6 *
7 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * Notes:
14 * The AIC23 is a driver for a low power stereo audio
15 * codec tlv320aic23
16 *
17 * The machine layer should disable unsupported inputs/outputs by
18 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
19 */
20
21#include <linux/module.h>
22#include <linux/moduleparam.h>
23#include <linux/init.h>
24#include <linux/delay.h>
25#include <linux/pm.h>
26#include <linux/i2c.h>
27#include <linux/slab.h>
28#include <sound/core.h>
29#include <sound/pcm.h>
30#include <sound/pcm_params.h>
31#include <sound/soc.h>
32#include <sound/tlv.h>
33#include <sound/initval.h>
34
35#include "tlv320aic23.h"
36
37/*
38 * AIC23 register cache
39 */
40static const u16 tlv320aic23_reg[] = {
41 0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */
42 0x001A, 0x0004, 0x0007, 0x0001, /* 4 */
43 0x0020, 0x0000, 0x0000, 0x0000, /* 8 */
44 0x0000, 0x0000, 0x0000, 0x0000, /* 12 */
45};
46
47static const char *rec_src_text[] = { "Line", "Mic" };
48static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
49
50static const struct soc_enum rec_src_enum =
51 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
52
53static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
54SOC_DAPM_ENUM("Input Select", rec_src_enum);
55
56static const struct soc_enum tlv320aic23_rec_src =
57 SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text);
58static const struct soc_enum tlv320aic23_deemph =
59 SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text);
60
61static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
62static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
63static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
64
65static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
66 struct snd_ctl_elem_value *ucontrol)
67{
68 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
69 u16 val, reg;
70
71 val = (ucontrol->value.integer.value[0] & 0x07);
72
73 /* linear conversion to userspace
74 * 000 = -6db
75 * 001 = -9db
76 * 010 = -12db
77 * 011 = -18db (Min)
78 * 100 = 0db (Max)
79 */
80 val = (val >= 4) ? 4 : (3 - val);
81
82 reg = snd_soc_read(codec, TLV320AIC23_ANLG) & (~0x1C0);
83 snd_soc_write(codec, TLV320AIC23_ANLG, reg | (val << 6));
84
85 return 0;
86}
87
88static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
89 struct snd_ctl_elem_value *ucontrol)
90{
91 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
92 u16 val;
93
94 val = snd_soc_read(codec, TLV320AIC23_ANLG) & (0x1C0);
95 val = val >> 6;
96 val = (val >= 4) ? 4 : (3 - val);
97 ucontrol->value.integer.value[0] = val;
98 return 0;
99
100}
101
102static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
103 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
104 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
105 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
106 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
107 TLV320AIC23_RINVOL, 7, 1, 0),
108 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
109 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
110 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
111 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
112 SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,
113 snd_soc_tlv320aic23_get_volsw,
114 snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),
115 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
116};
117
118/* PGA Mixer controls for Line and Mic switch */
119static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
120 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
121 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
122 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
123};
124
125static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
126 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
127 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
128 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
129 &tlv320aic23_rec_src_mux_controls),
130 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
131 &tlv320aic23_output_mixer_controls[0],
132 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
133 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
134 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
135
136 SND_SOC_DAPM_OUTPUT("LHPOUT"),
137 SND_SOC_DAPM_OUTPUT("RHPOUT"),
138 SND_SOC_DAPM_OUTPUT("LOUT"),
139 SND_SOC_DAPM_OUTPUT("ROUT"),
140
141 SND_SOC_DAPM_INPUT("LLINEIN"),
142 SND_SOC_DAPM_INPUT("RLINEIN"),
143
144 SND_SOC_DAPM_INPUT("MICIN"),
145};
146
147static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
148 /* Output Mixer */
149 {"Output Mixer", "Line Bypass Switch", "Line Input"},
150 {"Output Mixer", "Playback Switch", "DAC"},
151 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
152
153 /* Outputs */
154 {"RHPOUT", NULL, "Output Mixer"},
155 {"LHPOUT", NULL, "Output Mixer"},
156 {"LOUT", NULL, "Output Mixer"},
157 {"ROUT", NULL, "Output Mixer"},
158
159 /* Inputs */
160 {"Line Input", "NULL", "LLINEIN"},
161 {"Line Input", "NULL", "RLINEIN"},
162
163 {"Mic Input", "NULL", "MICIN"},
164
165 /* input mux */
166 {"Capture Source", "Line", "Line Input"},
167 {"Capture Source", "Mic", "Mic Input"},
168 {"ADC", NULL, "Capture Source"},
169
170};
171
172/* AIC23 driver data */
173struct aic23 {
174 enum snd_soc_control_type control_type;
175 int mclk;
176 int requested_adc;
177 int requested_dac;
178};
179
180/*
181 * Common Crystals used
182 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k
183 * 12.0000 Mhz /125 = *96k /136 = 88.235K
184 * 12.2880 Mhz /128 = *96k /192 = 64k
185 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
186 * 18.4320 Mhz /128 = 144k /192 = *96k
187 */
188
189/*
190 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
191 * USB BOSR 0-250/2 = 125, 1-272/2 = 136
192 */
193static const int bosr_usb_divisor_table[] = {
194 128, 125, 192, 136
195};
196#define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
197#define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15))
198static const unsigned short sr_valid_mask[] = {
199 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/
200 LOWER_GROUP, /* Usb, bosr - 0*/
201 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/
202 UPPER_GROUP, /* Usb, bosr - 1*/
203};
204/*
205 * Every divisor is a factor of 11*12
206 */
207#define SR_MULT (11*12)
208#define A(x) (SR_MULT/x)
209static const unsigned char sr_adc_mult_table[] = {
210 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1),
211 A(2), A(2), A(11), A(11), 0, 0, 0, A(1)
212};
213static const unsigned char sr_dac_mult_table[] = {
214 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1),
215 A(2), A(11), A(2), A(11), 0, 0, 0, A(1)
216};
217
218static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
219 int dac, int dac_l, int dac_h, int need_dac)
220{
221 if ((adc >= adc_l) && (adc <= adc_h) &&
222 (dac >= dac_l) && (dac <= dac_h)) {
223 int diff_adc = need_adc - adc;
224 int diff_dac = need_dac - dac;
225 return abs(diff_adc) + abs(diff_dac);
226 }
227 return UINT_MAX;
228}
229
230static int find_rate(int mclk, u32 need_adc, u32 need_dac)
231{
232 int i, j;
233 int best_i = -1;
234 int best_j = -1;
235 int best_div = 0;
236 unsigned best_score = UINT_MAX;
237 int adc_l, adc_h, dac_l, dac_h;
238
239 need_adc *= SR_MULT;
240 need_dac *= SR_MULT;
241 /*
242 * rates given are +/- 1/32
243 */
244 adc_l = need_adc - (need_adc >> 5);
245 adc_h = need_adc + (need_adc >> 5);
246 dac_l = need_dac - (need_dac >> 5);
247 dac_h = need_dac + (need_dac >> 5);
248 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
249 int base = mclk / bosr_usb_divisor_table[i];
250 int mask = sr_valid_mask[i];
251 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
252 j++, mask >>= 1) {
253 int adc;
254 int dac;
255 int score;
256 if ((mask & 1) == 0)
257 continue;
258 adc = base * sr_adc_mult_table[j];
259 dac = base * sr_dac_mult_table[j];
260 score = get_score(adc, adc_l, adc_h, need_adc,
261 dac, dac_l, dac_h, need_dac);
262 if (best_score > score) {
263 best_score = score;
264 best_i = i;
265 best_j = j;
266 best_div = 0;
267 }
268 score = get_score((adc >> 1), adc_l, adc_h, need_adc,
269 (dac >> 1), dac_l, dac_h, need_dac);
270 /* prefer to have a /2 */
271 if ((score != UINT_MAX) && (best_score >= score)) {
272 best_score = score;
273 best_i = i;
274 best_j = j;
275 best_div = 1;
276 }
277 }
278 }
279 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
280}
281
282#ifdef DEBUG
283static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk,
284 u32 *sample_rate_adc, u32 *sample_rate_dac)
285{
286 int src = snd_soc_read(codec, TLV320AIC23_SRATE);
287 int sr = (src >> 2) & 0x0f;
288 int val = (mclk / bosr_usb_divisor_table[src & 3]);
289 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
290 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
291 if (src & TLV320AIC23_CLKIN_HALF) {
292 adc >>= 1;
293 dac >>= 1;
294 }
295 *sample_rate_adc = adc;
296 *sample_rate_dac = dac;
297}
298#endif
299
300static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk,
301 u32 sample_rate_adc, u32 sample_rate_dac)
302{
303 /* Search for the right sample rate */
304 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
305 if (data < 0) {
306 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
307 __func__, sample_rate_adc, sample_rate_dac);
308 return -EINVAL;
309 }
310 snd_soc_write(codec, TLV320AIC23_SRATE, data);
311#ifdef DEBUG
312 {
313 u32 adc, dac;
314 get_current_sample_rates(codec, mclk, &adc, &dac);
315 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
316 adc, dac, data);
317 }
318#endif
319 return 0;
320}
321
322static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
323 struct snd_pcm_hw_params *params,
324 struct snd_soc_dai *dai)
325{
326 struct snd_soc_codec *codec = dai->codec;
327 u16 iface_reg;
328 int ret;
329 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
330 u32 sample_rate_adc = aic23->requested_adc;
331 u32 sample_rate_dac = aic23->requested_dac;
332 u32 sample_rate = params_rate(params);
333
334 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
335 aic23->requested_dac = sample_rate_dac = sample_rate;
336 if (!sample_rate_adc)
337 sample_rate_adc = sample_rate;
338 } else {
339 aic23->requested_adc = sample_rate_adc = sample_rate;
340 if (!sample_rate_dac)
341 sample_rate_dac = sample_rate;
342 }
343 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc,
344 sample_rate_dac);
345 if (ret < 0)
346 return ret;
347
348 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
349
350 switch (params_format(params)) {
351 case SNDRV_PCM_FORMAT_S16_LE:
352 break;
353 case SNDRV_PCM_FORMAT_S20_3LE:
354 iface_reg |= (0x01 << 2);
355 break;
356 case SNDRV_PCM_FORMAT_S24_LE:
357 iface_reg |= (0x02 << 2);
358 break;
359 case SNDRV_PCM_FORMAT_S32_LE:
360 iface_reg |= (0x03 << 2);
361 break;
362 }
363 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
364
365 return 0;
366}
367
368static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
369 struct snd_soc_dai *dai)
370{
371 struct snd_soc_codec *codec = dai->codec;
372
373 /* set active */
374 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0001);
375
376 return 0;
377}
378
379static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
380 struct snd_soc_dai *dai)
381{
382 struct snd_soc_codec *codec = dai->codec;
383 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
384
385 /* deactivate */
386 if (!codec->active) {
387 udelay(50);
388 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0);
389 }
390 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
391 aic23->requested_dac = 0;
392 else
393 aic23->requested_adc = 0;
394}
395
396static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
397{
398 struct snd_soc_codec *codec = dai->codec;
399 u16 reg;
400
401 reg = snd_soc_read(codec, TLV320AIC23_DIGT);
402 if (mute)
403 reg |= TLV320AIC23_DACM_MUTE;
404
405 else
406 reg &= ~TLV320AIC23_DACM_MUTE;
407
408 snd_soc_write(codec, TLV320AIC23_DIGT, reg);
409
410 return 0;
411}
412
413static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
414 unsigned int fmt)
415{
416 struct snd_soc_codec *codec = codec_dai->codec;
417 u16 iface_reg;
418
419 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & (~0x03);
420
421 /* set master/slave audio interface */
422 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
423 case SND_SOC_DAIFMT_CBM_CFM:
424 iface_reg |= TLV320AIC23_MS_MASTER;
425 break;
426 case SND_SOC_DAIFMT_CBS_CFS:
427 iface_reg &= ~TLV320AIC23_MS_MASTER;
428 break;
429 default:
430 return -EINVAL;
431
432 }
433
434 /* interface format */
435 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
436 case SND_SOC_DAIFMT_I2S:
437 iface_reg |= TLV320AIC23_FOR_I2S;
438 break;
439 case SND_SOC_DAIFMT_DSP_A:
440 iface_reg |= TLV320AIC23_LRP_ON;
441 case SND_SOC_DAIFMT_DSP_B:
442 iface_reg |= TLV320AIC23_FOR_DSP;
443 break;
444 case SND_SOC_DAIFMT_RIGHT_J:
445 break;
446 case SND_SOC_DAIFMT_LEFT_J:
447 iface_reg |= TLV320AIC23_FOR_LJUST;
448 break;
449 default:
450 return -EINVAL;
451
452 }
453
454 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
455
456 return 0;
457}
458
459static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
460 int clk_id, unsigned int freq, int dir)
461{
462 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);
463 aic23->mclk = freq;
464 return 0;
465}
466
467static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
468 enum snd_soc_bias_level level)
469{
470 u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0x17f;
471
472 switch (level) {
473 case SND_SOC_BIAS_ON:
474 /* vref/mid, osc on, dac unmute */
475 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \
476 TLV320AIC23_DAC_OFF);
477 snd_soc_write(codec, TLV320AIC23_PWR, reg);
478 break;
479 case SND_SOC_BIAS_PREPARE:
480 break;
481 case SND_SOC_BIAS_STANDBY:
482 /* everything off except vref/vmid, */
483 snd_soc_write(codec, TLV320AIC23_PWR,
484 reg | TLV320AIC23_CLK_OFF);
485 break;
486 case SND_SOC_BIAS_OFF:
487 /* everything off, dac mute, inactive */
488 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0);
489 snd_soc_write(codec, TLV320AIC23_PWR, 0x1ff);
490 break;
491 }
492 codec->dapm.bias_level = level;
493 return 0;
494}
495
496#define AIC23_RATES SNDRV_PCM_RATE_8000_96000
497#define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
498 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
499
500static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {
501 .prepare = tlv320aic23_pcm_prepare,
502 .hw_params = tlv320aic23_hw_params,
503 .shutdown = tlv320aic23_shutdown,
504 .digital_mute = tlv320aic23_mute,
505 .set_fmt = tlv320aic23_set_dai_fmt,
506 .set_sysclk = tlv320aic23_set_dai_sysclk,
507};
508
509static struct snd_soc_dai_driver tlv320aic23_dai = {
510 .name = "tlv320aic23-hifi",
511 .playback = {
512 .stream_name = "Playback",
513 .channels_min = 2,
514 .channels_max = 2,
515 .rates = AIC23_RATES,
516 .formats = AIC23_FORMATS,},
517 .capture = {
518 .stream_name = "Capture",
519 .channels_min = 2,
520 .channels_max = 2,
521 .rates = AIC23_RATES,
522 .formats = AIC23_FORMATS,},
523 .ops = &tlv320aic23_dai_ops,
524};
525
526static int tlv320aic23_suspend(struct snd_soc_codec *codec)
527{
528 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
529
530 return 0;
531}
532
533static int tlv320aic23_resume(struct snd_soc_codec *codec)
534{
535 snd_soc_cache_sync(codec);
536 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
537
538 return 0;
539}
540
541static int tlv320aic23_probe(struct snd_soc_codec *codec)
542{
543 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
544 int ret;
545
546 ret = snd_soc_codec_set_cache_io(codec, 7, 9, aic23->control_type);
547 if (ret < 0) {
548 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
549 return ret;
550 }
551
552 /* Reset codec */
553 snd_soc_write(codec, TLV320AIC23_RESET, 0);
554
555 /* Write the register default value to cache for reserved registers,
556 * so the write to the these registers are suppressed by the cache
557 * restore code when it skips writes of default registers.
558 */
559 snd_soc_cache_write(codec, 0x0A, 0);
560 snd_soc_cache_write(codec, 0x0B, 0);
561 snd_soc_cache_write(codec, 0x0C, 0);
562 snd_soc_cache_write(codec, 0x0D, 0);
563 snd_soc_cache_write(codec, 0x0E, 0);
564
565 /* power on device */
566 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
567
568 snd_soc_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
569
570 /* Unmute input */
571 snd_soc_update_bits(codec, TLV320AIC23_LINVOL,
572 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
573
574 snd_soc_update_bits(codec, TLV320AIC23_RINVOL,
575 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
576
577 snd_soc_update_bits(codec, TLV320AIC23_ANLG,
578 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
579 0);
580
581 /* Default output volume */
582 snd_soc_write(codec, TLV320AIC23_LCHNVOL,
583 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
584 snd_soc_write(codec, TLV320AIC23_RCHNVOL,
585 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
586
587 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x1);
588
589 snd_soc_add_codec_controls(codec, tlv320aic23_snd_controls,
590 ARRAY_SIZE(tlv320aic23_snd_controls));
591
592 return 0;
593}
594
595static int tlv320aic23_remove(struct snd_soc_codec *codec)
596{
597 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
598 return 0;
599}
600
601static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
602 .reg_cache_size = ARRAY_SIZE(tlv320aic23_reg),
603 .reg_word_size = sizeof(u16),
604 .reg_cache_default = tlv320aic23_reg,
605 .probe = tlv320aic23_probe,
606 .remove = tlv320aic23_remove,
607 .suspend = tlv320aic23_suspend,
608 .resume = tlv320aic23_resume,
609 .set_bias_level = tlv320aic23_set_bias_level,
610 .dapm_widgets = tlv320aic23_dapm_widgets,
611 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
612 .dapm_routes = tlv320aic23_intercon,
613 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),
614};
615
616#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
617/*
618 * If the i2c layer weren't so broken, we could pass this kind of data
619 * around
620 */
621static int tlv320aic23_codec_probe(struct i2c_client *i2c,
622 const struct i2c_device_id *i2c_id)
623{
624 struct aic23 *aic23;
625 int ret;
626
627 if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
628 return -EINVAL;
629
630 aic23 = devm_kzalloc(&i2c->dev, sizeof(struct aic23), GFP_KERNEL);
631 if (aic23 == NULL)
632 return -ENOMEM;
633
634 i2c_set_clientdata(i2c, aic23);
635 aic23->control_type = SND_SOC_I2C;
636
637 ret = snd_soc_register_codec(&i2c->dev,
638 &soc_codec_dev_tlv320aic23, &tlv320aic23_dai, 1);
639 return ret;
640}
641static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
642{
643 snd_soc_unregister_codec(&i2c->dev);
644 return 0;
645}
646
647static const struct i2c_device_id tlv320aic23_id[] = {
648 {"tlv320aic23", 0},
649 {}
650};
651
652MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
653
654static struct i2c_driver tlv320aic23_i2c_driver = {
655 .driver = {
656 .name = "tlv320aic23-codec",
657 },
658 .probe = tlv320aic23_codec_probe,
659 .remove = __exit_p(tlv320aic23_i2c_remove),
660 .id_table = tlv320aic23_id,
661};
662
663#endif
664
665static int __init tlv320aic23_modinit(void)
666{
667 int ret;
668#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
669 ret = i2c_add_driver(&tlv320aic23_i2c_driver);
670 if (ret != 0) {
671 printk(KERN_ERR "Failed to register TLV320AIC23 I2C driver: %d\n",
672 ret);
673 }
674#endif
675 return ret;
676}
677module_init(tlv320aic23_modinit);
678
679static void __exit tlv320aic23_exit(void)
680{
681#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
682 i2c_del_driver(&tlv320aic23_i2c_driver);
683#endif
684}
685module_exit(tlv320aic23_exit);
686
687MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
688MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
689MODULE_LICENSE("GPL");