]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - sound/soc/codecs/es8316.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge tag 'mfd-fixes-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
[mirror_ubuntu-artful-kernel.git] / sound / soc / codecs / es8316.c
CommitLineData
b8b88b70
DD		 1/*
2 * es8316.c -- es8316 ALSA SoC audio driver
3 * Copyright Everest Semiconductor Co.,Ltd
4 *
5 * Authors: David Yang <yangxiaohua@everest-semi.com>,
6 * Daniel Drake <drake@endlessm.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/acpi.h>
15#include <linux/delay.h>
16#include <linux/i2c.h>
17#include <linux/mod_devicetable.h>
18#include <linux/regmap.h>
19#include <sound/pcm.h>
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22#include <sound/soc-dapm.h>
23#include <sound/tlv.h>
24#include "es8316.h"
25
26/* In slave mode at single speed, the codec is documented as accepting 5
27 * MCLK/LRCK ratios, but we also add ratio 400, which is commonly used on
28 * Intel Cherry Trail platforms (19.2MHz MCLK, 48kHz LRCK).
29 */
30#define NR_SUPPORTED_MCLK_LRCK_RATIOS 6
31static const unsigned int supported_mclk_lrck_ratios[] = {
32 256, 384, 400, 512, 768, 1024
33};
34
35struct es8316_priv {
36 unsigned int sysclk;
37 unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS];
38 struct snd_pcm_hw_constraint_list sysclk_constraints;
39};
40
41/*
42 * ES8316 controls
43 */
44static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9600, 50, 1);
45static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9600, 50, 1);
46static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_max_gain_tlv, -650, 150, 0);
47static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_min_gain_tlv, -1200, 150, 0);
48static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(alc_target_tlv, -1650, 150, 0);
49static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(hpmixer_gain_tlv, -1200, 150, 0);
50
51static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(adc_pga_gain_tlv,
52 0, 0, TLV_DB_SCALE_ITEM(-350, 0, 0),
53 1, 1, TLV_DB_SCALE_ITEM(0, 0, 0),
54 2, 2, TLV_DB_SCALE_ITEM(250, 0, 0),
55 3, 3, TLV_DB_SCALE_ITEM(450, 0, 0),
56 4, 4, TLV_DB_SCALE_ITEM(700, 0, 0),
57 5, 5, TLV_DB_SCALE_ITEM(1000, 0, 0),
58 6, 6, TLV_DB_SCALE_ITEM(1300, 0, 0),
59 7, 7, TLV_DB_SCALE_ITEM(1600, 0, 0),
60 8, 8, TLV_DB_SCALE_ITEM(1800, 0, 0),
61 9, 9, TLV_DB_SCALE_ITEM(2100, 0, 0),
62 10, 10, TLV_DB_SCALE_ITEM(2400, 0, 0),
63);
64
65static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(hpout_vol_tlv,
66 0, 0, TLV_DB_SCALE_ITEM(-4800, 0, 0),
67 1, 3, TLV_DB_SCALE_ITEM(-2400, 1200, 0),
68);
69
70static const char * const ng_type_txt[] =
71 { "Constant PGA Gain", "Mute ADC Output" };
72static const struct soc_enum ng_type =
73 SOC_ENUM_SINGLE(ES8316_ADC_ALC_NG, 6, 2, ng_type_txt);
74
75static const char * const adcpol_txt[] = { "Normal", "Invert" };
76static const struct soc_enum adcpol =
77 SOC_ENUM_SINGLE(ES8316_ADC_MUTE, 1, 2, adcpol_txt);
78static const char *const dacpol_txt[] =
79 { "Normal", "R Invert", "L Invert", "L + R Invert" };
80static const struct soc_enum dacpol =
81 SOC_ENUM_SINGLE(ES8316_DAC_SET1, 0, 4, dacpol_txt);
82
83static const struct snd_kcontrol_new es8316_snd_controls[] = {
84 SOC_DOUBLE_TLV("Headphone Playback Volume", ES8316_CPHP_ICAL_VOL,
85 4, 0, 3, 1, hpout_vol_tlv),
86 SOC_DOUBLE_TLV("Headphone Mixer Volume", ES8316_HPMIX_VOL,
87 0, 4, 7, 0, hpmixer_gain_tlv),
88
89 SOC_ENUM("Playback Polarity", dacpol),
90 SOC_DOUBLE_R_TLV("DAC Playback Volume", ES8316_DAC_VOLL,
91 ES8316_DAC_VOLR, 0, 0xc0, 1, dac_vol_tlv),
92 SOC_SINGLE("DAC Soft Ramp Switch", ES8316_DAC_SET1, 4, 1, 1),
93 SOC_SINGLE("DAC Soft Ramp Rate", ES8316_DAC_SET1, 2, 4, 0),
94 SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0),
95 SOC_SINGLE("DAC Double Fs Switch", ES8316_DAC_SET2, 7, 1, 0),
96 SOC_SINGLE("DAC Stereo Enhancement", ES8316_DAC_SET3, 0, 7, 0),
97
98 SOC_ENUM("Capture Polarity", adcpol),
99 SOC_SINGLE("Mic Boost Switch", ES8316_ADC_D2SEPGA, 0, 1, 0),
100 SOC_SINGLE_TLV("ADC Capture Volume", ES8316_ADC_VOLUME,
101 0, 0xc0, 1, adc_vol_tlv),
102 SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8316_ADC_PGAGAIN,
103 4, 10, 0, adc_pga_gain_tlv),
104 SOC_SINGLE("ADC Soft Ramp Switch", ES8316_ADC_MUTE, 4, 1, 0),
105 SOC_SINGLE("ADC Double Fs Switch", ES8316_ADC_DMIC, 4, 1, 0),
106
107 SOC_SINGLE("ALC Capture Switch", ES8316_ADC_ALC1, 6, 1, 0),
108 SOC_SINGLE_TLV("ALC Capture Max Volume", ES8316_ADC_ALC1, 0, 28, 0,
109 alc_max_gain_tlv),
110 SOC_SINGLE_TLV("ALC Capture Min Volume", ES8316_ADC_ALC2, 0, 28, 0,
111 alc_min_gain_tlv),
112 SOC_SINGLE_TLV("ALC Capture Target Volume", ES8316_ADC_ALC3, 4, 10, 0,
113 alc_target_tlv),
114 SOC_SINGLE("ALC Capture Hold Time", ES8316_ADC_ALC3, 0, 10, 0),
115 SOC_SINGLE("ALC Capture Decay Time", ES8316_ADC_ALC4, 4, 10, 0),
116 SOC_SINGLE("ALC Capture Attack Time", ES8316_ADC_ALC4, 0, 10, 0),
117 SOC_SINGLE("ALC Capture Noise Gate Switch", ES8316_ADC_ALC_NG,
118 5, 1, 0),
119 SOC_SINGLE("ALC Capture Noise Gate Threshold", ES8316_ADC_ALC_NG,
120 0, 31, 0),
121 SOC_ENUM("ALC Capture Noise Gate Type", ng_type),
122};
123
124/* Analog Input Mux */
125static const char * const es8316_analog_in_txt[] = {
126 "lin1-rin1",
127 "lin2-rin2",
128 "lin1-rin1 with 20db Boost",
129 "lin2-rin2 with 20db Boost"
130};
131static const unsigned int es8316_analog_in_values[] = { 0, 1, 2, 3 };
132static const struct soc_enum es8316_analog_input_enum =
133 SOC_VALUE_ENUM_SINGLE(ES8316_ADC_PDN_LINSEL, 4, 3,
134 ARRAY_SIZE(es8316_analog_in_txt),
135 es8316_analog_in_txt,
136 es8316_analog_in_values);
137static const struct snd_kcontrol_new es8316_analog_in_mux_controls =
138 SOC_DAPM_ENUM("Route", es8316_analog_input_enum);
139
140static const char * const es8316_dmic_txt[] = {
141 "dmic disable",
142 "dmic data at high level",
143 "dmic data at low level",
144};
145static const unsigned int es8316_dmic_values[] = { 0, 1, 2 };
146static const struct soc_enum es8316_dmic_src_enum =
147 SOC_VALUE_ENUM_SINGLE(ES8316_ADC_DMIC, 0, 3,
148 ARRAY_SIZE(es8316_dmic_txt),
149 es8316_dmic_txt,
150 es8316_dmic_values);
151static const struct snd_kcontrol_new es8316_dmic_src_controls =
152 SOC_DAPM_ENUM("Route", es8316_dmic_src_enum);
153
154/* hp mixer mux */
155static const char * const es8316_hpmux_texts[] = {
156 "lin1-rin1",
157 "lin2-rin2",
158 "lin-rin with Boost",
159 "lin-rin with Boost and PGA"
160};
161
162static const unsigned int es8316_hpmux_values[] = { 0, 1, 2, 3 };
163
164static SOC_ENUM_SINGLE_DECL(es8316_left_hpmux_enum, ES8316_HPMIX_SEL,
165 4, es8316_hpmux_texts);
166
167static const struct snd_kcontrol_new es8316_left_hpmux_controls =
168 SOC_DAPM_ENUM("Route", es8316_left_hpmux_enum);
169
170static SOC_ENUM_SINGLE_DECL(es8316_right_hpmux_enum, ES8316_HPMIX_SEL,
171 0, es8316_hpmux_texts);
172
173static const struct snd_kcontrol_new es8316_right_hpmux_controls =
174 SOC_DAPM_ENUM("Route", es8316_right_hpmux_enum);
175
176/* headphone Output Mixer */
177static const struct snd_kcontrol_new es8316_out_left_mix[] = {
178 SOC_DAPM_SINGLE("LLIN Switch", ES8316_HPMIX_SWITCH, 6, 1, 0),
179 SOC_DAPM_SINGLE("Left DAC Switch", ES8316_HPMIX_SWITCH, 7, 1, 0),
180};
181static const struct snd_kcontrol_new es8316_out_right_mix[] = {
182 SOC_DAPM_SINGLE("RLIN Switch", ES8316_HPMIX_SWITCH, 2, 1, 0),
183 SOC_DAPM_SINGLE("Right DAC Switch", ES8316_HPMIX_SWITCH, 3, 1, 0),
184};
185
186/* DAC data source mux */
187static const char * const es8316_dacsrc_texts[] = {
188 "LDATA TO LDAC, RDATA TO RDAC",
189 "LDATA TO LDAC, LDATA TO RDAC",
190 "RDATA TO LDAC, RDATA TO RDAC",
191 "RDATA TO LDAC, LDATA TO RDAC",
192};
193
194static const unsigned int es8316_dacsrc_values[] = { 0, 1, 2, 3 };
195
196static SOC_ENUM_SINGLE_DECL(es8316_dacsrc_mux_enum, ES8316_DAC_SET1,
197 6, es8316_dacsrc_texts);
198
199static const struct snd_kcontrol_new es8316_dacsrc_mux_controls =
200 SOC_DAPM_ENUM("Route", es8316_dacsrc_mux_enum);
201
202static const struct snd_soc_dapm_widget es8316_dapm_widgets[] = {
203 SND_SOC_DAPM_SUPPLY("Bias", ES8316_SYS_PDN, 3, 1, NULL, 0),
204 SND_SOC_DAPM_SUPPLY("Analog power", ES8316_SYS_PDN, 4, 1, NULL, 0),
205 SND_SOC_DAPM_SUPPLY("Mic Bias", ES8316_SYS_PDN, 5, 1, NULL, 0),
206
207 SND_SOC_DAPM_INPUT("DMIC"),
208 SND_SOC_DAPM_INPUT("MIC1"),
209 SND_SOC_DAPM_INPUT("MIC2"),
210
211 /* Input Mux */
212 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
213 &es8316_analog_in_mux_controls),
214
215 SND_SOC_DAPM_SUPPLY("ADC Vref", ES8316_SYS_PDN, 1, 1, NULL, 0),
216 SND_SOC_DAPM_SUPPLY("ADC bias", ES8316_SYS_PDN, 2, 1, NULL, 0),
217 SND_SOC_DAPM_SUPPLY("ADC Clock", ES8316_CLKMGR_CLKSW, 3, 0, NULL, 0),
218 SND_SOC_DAPM_PGA("Line input PGA", ES8316_ADC_PDN_LINSEL,
219 7, 1, NULL, 0),
220 SND_SOC_DAPM_ADC("Mono ADC", NULL, ES8316_ADC_PDN_LINSEL, 6, 1),
221 SND_SOC_DAPM_MUX("Digital Mic Mux", SND_SOC_NOPM, 0, 0,
222 &es8316_dmic_src_controls),
223
224 /* Digital Interface */
225 SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 1,
226 ES8316_SERDATA_ADC, 6, 1),
227 SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0,
228 SND_SOC_NOPM, 0, 0),
229
230 SND_SOC_DAPM_MUX("DAC Source Mux", SND_SOC_NOPM, 0, 0,
231 &es8316_dacsrc_mux_controls),
232
233 SND_SOC_DAPM_SUPPLY("DAC Vref", ES8316_SYS_PDN, 0, 1, NULL, 0),
234 SND_SOC_DAPM_SUPPLY("DAC Clock", ES8316_CLKMGR_CLKSW, 2, 0, NULL, 0),
235 SND_SOC_DAPM_DAC("Right DAC", NULL, ES8316_DAC_PDN, 0, 1),
236 SND_SOC_DAPM_DAC("Left DAC", NULL, ES8316_DAC_PDN, 4, 1),
237
238 /* Headphone Output Side */
239 SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0,
240 &es8316_left_hpmux_controls),
241 SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0,
242 &es8316_right_hpmux_controls),
243 SND_SOC_DAPM_MIXER("Left Headphone Mixer", ES8316_HPMIX_PDN,
244 5, 1, &es8316_out_left_mix[0],
245 ARRAY_SIZE(es8316_out_left_mix)),
246 SND_SOC_DAPM_MIXER("Right Headphone Mixer", ES8316_HPMIX_PDN,
247 1, 1, &es8316_out_right_mix[0],
248 ARRAY_SIZE(es8316_out_right_mix)),
249 SND_SOC_DAPM_PGA("Left Headphone Mixer Out", ES8316_HPMIX_PDN,
250 4, 1, NULL, 0),
251 SND_SOC_DAPM_PGA("Right Headphone Mixer Out", ES8316_HPMIX_PDN,
252 0, 1, NULL, 0),
253
254 SND_SOC_DAPM_OUT_DRV("Left Headphone Charge Pump", ES8316_CPHP_OUTEN,
255 6, 0, NULL, 0),
256 SND_SOC_DAPM_OUT_DRV("Right Headphone Charge Pump", ES8316_CPHP_OUTEN,
257 2, 0, NULL, 0),
258 SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8316_CPHP_PDN2,
259 5, 1, NULL, 0),
260 SND_SOC_DAPM_SUPPLY("Headphone Charge Pump Clock", ES8316_CLKMGR_CLKSW,
261 4, 0, NULL, 0),
262
263 SND_SOC_DAPM_OUT_DRV("Left Headphone Driver", ES8316_CPHP_OUTEN,
264 5, 0, NULL, 0),
265 SND_SOC_DAPM_OUT_DRV("Right Headphone Driver", ES8316_CPHP_OUTEN,
266 1, 0, NULL, 0),
267 SND_SOC_DAPM_SUPPLY("Headphone Out", ES8316_CPHP_PDN1, 2, 1, NULL, 0),
268
269 /* pdn_Lical and pdn_Rical bits are documented as Reserved, but must
270 * be explicitly unset in order to enable HP output
271 */
272 SND_SOC_DAPM_SUPPLY("Left Headphone ical", ES8316_CPHP_ICAL_VOL,
273 7, 1, NULL, 0),
274 SND_SOC_DAPM_SUPPLY("Right Headphone ical", ES8316_CPHP_ICAL_VOL,
275 3, 1, NULL, 0),
276
277 SND_SOC_DAPM_OUTPUT("HPOL"),
278 SND_SOC_DAPM_OUTPUT("HPOR"),
279};
280
281static const struct snd_soc_dapm_route es8316_dapm_routes[] = {
282 /* Recording */
283 {"MIC1", NULL, "Mic Bias"},
284 {"MIC2", NULL, "Mic Bias"},
285 {"MIC1", NULL, "Bias"},
286 {"MIC2", NULL, "Bias"},
287 {"MIC1", NULL, "Analog power"},
288 {"MIC2", NULL, "Analog power"},
289
290 {"Differential Mux", "lin1-rin1", "MIC1"},
291 {"Differential Mux", "lin2-rin2", "MIC2"},
292 {"Line input PGA", NULL, "Differential Mux"},
293
294 {"Mono ADC", NULL, "ADC Clock"},
295 {"Mono ADC", NULL, "ADC Vref"},
296 {"Mono ADC", NULL, "ADC bias"},
297 {"Mono ADC", NULL, "Line input PGA"},
298
299 /* It's not clear why, but to avoid recording only silence,
300 * the DAC clock must be running for the ADC to work.
301 */
302 {"Mono ADC", NULL, "DAC Clock"},
303
304 {"Digital Mic Mux", "dmic disable", "Mono ADC"},
305
306 {"I2S OUT", NULL, "Digital Mic Mux"},
307
308 /* Playback */
309 {"DAC Source Mux", "LDATA TO LDAC, RDATA TO RDAC", "I2S IN"},
310
311 {"Left DAC", NULL, "DAC Clock"},
312 {"Right DAC", NULL, "DAC Clock"},
313
314 {"Left DAC", NULL, "DAC Vref"},
315 {"Right DAC", NULL, "DAC Vref"},
316
317 {"Left DAC", NULL, "DAC Source Mux"},
318 {"Right DAC", NULL, "DAC Source Mux"},
319
320 {"Left Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
321 {"Right Headphone Mux", "lin-rin with Boost and PGA", "Line input PGA"},
322
323 {"Left Headphone Mixer", "LLIN Switch", "Left Headphone Mux"},
324 {"Left Headphone Mixer", "Left DAC Switch", "Left DAC"},
325
326 {"Right Headphone Mixer", "RLIN Switch", "Right Headphone Mux"},
327 {"Right Headphone Mixer", "Right DAC Switch", "Right DAC"},
328
329 {"Left Headphone Mixer Out", NULL, "Left Headphone Mixer"},
330 {"Right Headphone Mixer Out", NULL, "Right Headphone Mixer"},
331
332 {"Left Headphone Charge Pump", NULL, "Left Headphone Mixer Out"},
333 {"Right Headphone Charge Pump", NULL, "Right Headphone Mixer Out"},
334
335 {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump"},
336 {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump"},
337
338 {"Left Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"},
339 {"Right Headphone Charge Pump", NULL, "Headphone Charge Pump Clock"},
340
341 {"Left Headphone Driver", NULL, "Left Headphone Charge Pump"},
342 {"Right Headphone Driver", NULL, "Right Headphone Charge Pump"},
343
344 {"HPOL", NULL, "Left Headphone Driver"},
345 {"HPOR", NULL, "Right Headphone Driver"},
346
347 {"HPOL", NULL, "Left Headphone ical"},
348 {"HPOR", NULL, "Right Headphone ical"},
349
350 {"Headphone Out", NULL, "Bias"},
351 {"Headphone Out", NULL, "Analog power"},
352 {"HPOL", NULL, "Headphone Out"},
353 {"HPOR", NULL, "Headphone Out"},
354};
355
356static int es8316_set_dai_sysclk(struct snd_soc_dai *codec_dai,
357 int clk_id, unsigned int freq, int dir)
358{
359 struct snd_soc_codec *codec = codec_dai->codec;
360 struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec);
361 int i;
362 int count = 0;
363
364 es8316->sysclk = freq;
365
366 if (freq == 0)
367 return 0;
368
369 /* Limit supported sample rates to ones that can be autodetected
370 * by the codec running in slave mode.
371 */
372 for (i = 0; i < NR_SUPPORTED_MCLK_LRCK_RATIOS; i++) {
373 const unsigned int ratio = supported_mclk_lrck_ratios[i];
374
375 if (freq % ratio == 0)
376 es8316->allowed_rates[count++] = freq / ratio;
377 }
378
379 es8316->sysclk_constraints.list = es8316->allowed_rates;
380 es8316->sysclk_constraints.count = count;
381
382 return 0;
383}
384
385static int es8316_set_dai_fmt(struct snd_soc_dai *codec_dai,
386 unsigned int fmt)
387{
388 struct snd_soc_codec *codec = codec_dai->codec;
389 u8 serdata1 = 0;
390 u8 serdata2 = 0;
391 u8 clksw;
392 u8 mask;
393
394 if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) {
395 dev_err(codec->dev, "Codec driver only supports slave mode\n");
396 return -EINVAL;
397 }
398
399 if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) {
400 dev_err(codec->dev, "Codec driver only supports I2S format\n");
401 return -EINVAL;
402 }
403
404 /* Clock inversion */
405 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
406 case SND_SOC_DAIFMT_NB_NF:
407 break;
408 case SND_SOC_DAIFMT_IB_IF:
409 serdata1 |= ES8316_SERDATA1_BCLK_INV;
410 serdata2 |= ES8316_SERDATA2_ADCLRP;
411 break;
412 case SND_SOC_DAIFMT_IB_NF:
413 serdata1 |= ES8316_SERDATA1_BCLK_INV;
414 break;
415 case SND_SOC_DAIFMT_NB_IF:
416 serdata2 |= ES8316_SERDATA2_ADCLRP;
417 break;
418 default:
419 return -EINVAL;
420 }
421
422 mask = ES8316_SERDATA1_MASTER | ES8316_SERDATA1_BCLK_INV;
423 snd_soc_update_bits(codec, ES8316_SERDATA1, mask, serdata1);
424
425 mask = ES8316_SERDATA2_FMT_MASK | ES8316_SERDATA2_ADCLRP;
426 snd_soc_update_bits(codec, ES8316_SERDATA_ADC, mask, serdata2);
427 snd_soc_update_bits(codec, ES8316_SERDATA_DAC, mask, serdata2);
428
429 /* Enable BCLK and MCLK inputs in slave mode */
430 clksw = ES8316_CLKMGR_CLKSW_MCLK_ON | ES8316_CLKMGR_CLKSW_BCLK_ON;
431 snd_soc_update_bits(codec, ES8316_CLKMGR_CLKSW, clksw, clksw);
432
433 return 0;
434}
435
436static int es8316_pcm_startup(struct snd_pcm_substream *substream,
437 struct snd_soc_dai *dai)
438{
439 struct snd_soc_codec *codec = dai->codec;
440 struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec);
441
442 if (es8316->sysclk == 0) {
443 dev_err(codec->dev, "No sysclk provided\n");
444 return -EINVAL;
445 }
446
447 /* The set of sample rates that can be supported depends on the
448 * MCLK supplied to the CODEC.
449 */
450 snd_pcm_hw_constraint_list(substream->runtime, 0,
451 SNDRV_PCM_HW_PARAM_RATE,
452 &es8316->sysclk_constraints);
453
454 return 0;
455}
456
457static int es8316_pcm_hw_params(struct snd_pcm_substream *substream,
458 struct snd_pcm_hw_params *params,
459 struct snd_soc_dai *dai)
460{
461 struct snd_soc_pcm_runtime *rtd = substream->private_data;
462 struct snd_soc_codec *codec = rtd->codec;
463 struct es8316_priv *es8316 = snd_soc_codec_get_drvdata(codec);
464 u8 wordlen = 0;
465
466 if (!es8316->sysclk) {
467 dev_err(codec->dev, "No MCLK configured\n");
468 return -EINVAL;
469 }
470
471 switch (params_format(params)) {
472 case SNDRV_PCM_FORMAT_S16_LE:
473 wordlen = ES8316_SERDATA2_LEN_16;
474 break;
475 case SNDRV_PCM_FORMAT_S20_3LE:
476 wordlen = ES8316_SERDATA2_LEN_20;
477 break;
478 case SNDRV_PCM_FORMAT_S24_LE:
479 wordlen = ES8316_SERDATA2_LEN_24;
480 break;
481 case SNDRV_PCM_FORMAT_S32_LE:
482 wordlen = ES8316_SERDATA2_LEN_32;
483 break;
484 default:
485 return -EINVAL;
486 }
487
488 snd_soc_update_bits(codec, ES8316_SERDATA_DAC,
489 ES8316_SERDATA2_LEN_MASK, wordlen);
490 snd_soc_update_bits(codec, ES8316_SERDATA_ADC,
491 ES8316_SERDATA2_LEN_MASK, wordlen);
492 return 0;
493}
494
495static int es8316_mute(struct snd_soc_dai *dai, int mute)
496{
497 snd_soc_update_bits(dai->codec, ES8316_DAC_SET1, 0x20,
498 mute ? 0x20 : 0);
499 return 0;
500}
501
502#define ES8316_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
503 SNDRV_PCM_FMTBIT_S24_LE)
504
505static struct snd_soc_dai_ops es8316_ops = {
506 .startup = es8316_pcm_startup,
507 .hw_params = es8316_pcm_hw_params,
508 .set_fmt = es8316_set_dai_fmt,
509 .set_sysclk = es8316_set_dai_sysclk,
510 .digital_mute = es8316_mute,
511};
512
513static struct snd_soc_dai_driver es8316_dai = {
514 .name = "ES8316 HiFi",
515 .playback = {
516 .stream_name = "Playback",
517 .channels_min = 1,
518 .channels_max = 2,
519 .rates = SNDRV_PCM_RATE_8000_48000,
520 .formats = ES8316_FORMATS,
521 },
522 .capture = {
523 .stream_name = "Capture",
524 .channels_min = 1,
525 .channels_max = 2,
526 .rates = SNDRV_PCM_RATE_8000_48000,
527 .formats = ES8316_FORMATS,
528 },
529 .ops = &es8316_ops,
530 .symmetric_rates = 1,
531};
532
533static int es8316_probe(struct snd_soc_codec *codec)
534{
535 /* Reset codec and enable current state machine */
536 snd_soc_write(codec, ES8316_RESET, 0x3f);
537 usleep_range(5000, 5500);
538 snd_soc_write(codec, ES8316_RESET, ES8316_RESET_CSM_ON);
539 msleep(30);
540
541 /*
542 * Documentation is unclear, but this value from the vendor driver is
543 * needed otherwise audio output is silent.
544 */
545 snd_soc_write(codec, ES8316_SYS_VMIDSEL, 0xff);
546
547 /*
548 * Documentation for this register is unclear and incomplete,
549 * but here is a vendor-provided value that improves volume
550 * and quality for Intel CHT platforms.
551 */
552 snd_soc_write(codec, ES8316_CLKMGR_ADCOSR, 0x32);
553
554 return 0;
555}
556
557static struct snd_soc_codec_driver soc_codec_dev_es8316 = {
558 .probe = es8316_probe,
559 .idle_bias_off = true,
560
561 .component_driver = {
562 .controls = es8316_snd_controls,
563 .num_controls = ARRAY_SIZE(es8316_snd_controls),
564 .dapm_widgets = es8316_dapm_widgets,
565 .num_dapm_widgets = ARRAY_SIZE(es8316_dapm_widgets),
566 .dapm_routes = es8316_dapm_routes,
567 .num_dapm_routes = ARRAY_SIZE(es8316_dapm_routes),
568 },
569};
570
571static const struct regmap_config es8316_regmap = {
572 .reg_bits = 8,
573 .val_bits = 8,
574 .max_register = 0x53,
575 .cache_type = REGCACHE_RBTREE,
576};
577
578static int es8316_i2c_probe(struct i2c_client *i2c_client,
579 const struct i2c_device_id *id)
580{
581 struct es8316_priv *es8316;
582 struct regmap *regmap;
583
584 es8316 = devm_kzalloc(&i2c_client->dev, sizeof(struct es8316_priv),
585 GFP_KERNEL);
586 if (es8316 == NULL)
587 return -ENOMEM;
588
589 i2c_set_clientdata(i2c_client, es8316);
590
591 regmap = devm_regmap_init_i2c(i2c_client, &es8316_regmap);
592 if (IS_ERR(regmap))
593 return PTR_ERR(regmap);
594
595 return snd_soc_register_codec(&i2c_client->dev, &soc_codec_dev_es8316,
596 &es8316_dai, 1);
597}
598
599static int es8316_i2c_remove(struct i2c_client *client)
600{
601 snd_soc_unregister_codec(&client->dev);
602 return 0;
603}
604
605static const struct i2c_device_id es8316_i2c_id[] = {
606 {"es8316", 0 },
607 {}
608};
609MODULE_DEVICE_TABLE(i2c, es8316_i2c_id);
610
611static const struct of_device_id es8316_of_match[] = {
612 { .compatible = "everest,es8316", },
613 {},
614};
615MODULE_DEVICE_TABLE(of, es8316_of_match);
616
617static const struct acpi_device_id es8316_acpi_match[] = {
618 {"ESSX8316", 0},
619 {},
620};
621MODULE_DEVICE_TABLE(acpi, es8316_acpi_match);
622
623static struct i2c_driver es8316_i2c_driver = {
624 .driver = {
625 .name = "es8316",
626 .acpi_match_table = ACPI_PTR(es8316_acpi_match),
627 .of_match_table = of_match_ptr(es8316_of_match),
628 },
629 .probe = es8316_i2c_probe,
630 .remove = es8316_i2c_remove,
631 .id_table = es8316_i2c_id,
632};
633module_i2c_driver(es8316_i2c_driver);
634
635MODULE_DESCRIPTION("Everest Semi ES8316 ALSA SoC Codec Driver");
636MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");
637MODULE_LICENSE("GPL v2");
Ubuntu Artful kernel mirror