1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * ak4641.c -- AK4641 ALSA Soc Audio driver |
4 | * |
5 | * Copyright (C) 2008 Harald Welte <laforge@gnufiish.org> |
6 | * Copyright (C) 2011 Dmitry Artamonow <mad_soft@inbox.ru> |
7 | * |
8 | * Based on ak4535.c by Richard Purdie |
9 | */ |
10 | |
11 | #include <linux/module.h> |
12 | #include <linux/init.h> |
13 | #include <linux/delay.h> |
14 | #include <linux/gpio.h> |
15 | #include <linux/pm.h> |
16 | #include <linux/i2c.h> |
17 | #include <linux/regmap.h> |
18 | #include <linux/slab.h> |
19 | #include <sound/core.h> |
20 | #include <sound/pcm.h> |
21 | #include <sound/pcm_params.h> |
22 | #include <sound/soc.h> |
23 | #include <sound/initval.h> |
24 | #include <sound/tlv.h> |
25 | #include <sound/ak4641.h> |
26 | |
27 | /* AK4641 register space */ |
28 | #define AK4641_PM1 0x00 |
29 | #define AK4641_PM2 0x01 |
30 | #define AK4641_SIG1 0x02 |
31 | #define AK4641_SIG2 0x03 |
32 | #define AK4641_MODE1 0x04 |
33 | #define AK4641_MODE2 0x05 |
34 | #define AK4641_DAC 0x06 |
35 | #define AK4641_MIC 0x07 |
36 | #define AK4641_TIMER 0x08 |
37 | #define AK4641_ALC1 0x09 |
38 | #define AK4641_ALC2 0x0a |
39 | #define AK4641_PGA 0x0b |
40 | #define AK4641_LATT 0x0c |
41 | #define AK4641_RATT 0x0d |
42 | #define AK4641_VOL 0x0e |
43 | #define AK4641_STATUS 0x0f |
44 | #define AK4641_EQLO 0x10 |
45 | #define AK4641_EQMID 0x11 |
46 | #define AK4641_EQHI 0x12 |
47 | #define AK4641_BTIF 0x13 |
48 | |
49 | /* codec private data */ |
50 | struct ak4641_priv { |
51 | struct regmap *regmap; |
52 | unsigned int sysclk; |
53 | int deemph; |
54 | int playback_fs; |
55 | }; |
56 | |
57 | /* |
58 | * ak4641 register cache |
59 | */ |
60 | static const struct reg_default ak4641_reg_defaults[] = { |
61 | { 0, 0x00 }, { 1, 0x80 }, { 2, 0x00 }, { 3, 0x80 }, |
62 | { 4, 0x02 }, { 5, 0x00 }, { 6, 0x11 }, { 7, 0x05 }, |
63 | { 8, 0x00 }, { 9, 0x00 }, { 10, 0x36 }, { 11, 0x10 }, |
64 | { 12, 0x00 }, { 13, 0x00 }, { 14, 0x57 }, { 15, 0x00 }, |
65 | { 16, 0x88 }, { 17, 0x88 }, { 18, 0x08 }, { 19, 0x08 } |
66 | }; |
67 | |
68 | static const int deemph_settings[] = {44100, 0, 48000, 32000}; |
69 | |
70 | static int ak4641_set_deemph(struct snd_soc_component *component) |
71 | { |
72 | struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(c: component); |
73 | int i, best = 0; |
74 | |
75 | for (i = 0 ; i < ARRAY_SIZE(deemph_settings); i++) { |
76 | /* if deemphasis is on, select the nearest available rate */ |
77 | if (ak4641->deemph && deemph_settings[i] != 0 && |
78 | abs(deemph_settings[i] - ak4641->playback_fs) < |
79 | abs(deemph_settings[best] - ak4641->playback_fs)) |
80 | best = i; |
81 | |
82 | if (!ak4641->deemph && deemph_settings[i] == 0) |
83 | best = i; |
84 | } |
85 | |
86 | dev_dbg(component->dev, "Set deemphasis %d\n" , best); |
87 | |
88 | return snd_soc_component_update_bits(component, AK4641_DAC, mask: 0x3, val: best); |
89 | } |
90 | |
91 | static int ak4641_put_deemph(struct snd_kcontrol *kcontrol, |
92 | struct snd_ctl_elem_value *ucontrol) |
93 | { |
94 | struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); |
95 | struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(c: component); |
96 | int deemph = ucontrol->value.integer.value[0]; |
97 | |
98 | if (deemph > 1) |
99 | return -EINVAL; |
100 | |
101 | ak4641->deemph = deemph; |
102 | |
103 | return ak4641_set_deemph(component); |
104 | } |
105 | |
106 | static int ak4641_get_deemph(struct snd_kcontrol *kcontrol, |
107 | struct snd_ctl_elem_value *ucontrol) |
108 | { |
109 | struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); |
110 | struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(c: component); |
111 | |
112 | ucontrol->value.integer.value[0] = ak4641->deemph; |
113 | return 0; |
114 | }; |
115 | |
116 | static const char *ak4641_mono_out[] = {"(L + R)/2" , "Hi-Z" }; |
117 | static const char *ak4641_hp_out[] = {"Stereo" , "Mono" }; |
118 | static const char *ak4641_mic_select[] = {"Internal" , "External" }; |
119 | static const char *ak4641_mic_or_dac[] = {"Microphone" , "Voice DAC" }; |
120 | |
121 | |
122 | static const DECLARE_TLV_DB_SCALE(mono_gain_tlv, -1700, 2300, 0); |
123 | static const DECLARE_TLV_DB_SCALE(mic_boost_tlv, 0, 2000, 0); |
124 | static const DECLARE_TLV_DB_SCALE(eq_tlv, -1050, 150, 0); |
125 | static const DECLARE_TLV_DB_SCALE(master_tlv, -12750, 50, 0); |
126 | static const DECLARE_TLV_DB_SCALE(mic_stereo_sidetone_tlv, -2700, 300, 0); |
127 | static const DECLARE_TLV_DB_SCALE(mic_mono_sidetone_tlv, -400, 400, 0); |
128 | static const DECLARE_TLV_DB_SCALE(capture_tlv, -800, 50, 0); |
129 | static const DECLARE_TLV_DB_SCALE(alc_tlv, -800, 50, 0); |
130 | static const DECLARE_TLV_DB_SCALE(aux_in_tlv, -2100, 300, 0); |
131 | |
132 | |
133 | static SOC_ENUM_SINGLE_DECL(ak4641_mono_out_enum, |
134 | AK4641_SIG1, 6, ak4641_mono_out); |
135 | static SOC_ENUM_SINGLE_DECL(ak4641_hp_out_enum, |
136 | AK4641_MODE2, 2, ak4641_hp_out); |
137 | static SOC_ENUM_SINGLE_DECL(ak4641_mic_select_enum, |
138 | AK4641_MIC, 1, ak4641_mic_select); |
139 | static SOC_ENUM_SINGLE_DECL(ak4641_mic_or_dac_enum, |
140 | AK4641_BTIF, 4, ak4641_mic_or_dac); |
141 | |
142 | static const struct snd_kcontrol_new ak4641_snd_controls[] = { |
143 | SOC_ENUM("Mono 1 Output" , ak4641_mono_out_enum), |
144 | SOC_SINGLE_TLV("Mono 1 Gain Volume" , AK4641_SIG1, 7, 1, 1, |
145 | mono_gain_tlv), |
146 | SOC_ENUM("Headphone Output" , ak4641_hp_out_enum), |
147 | SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch" , 0, |
148 | ak4641_get_deemph, ak4641_put_deemph), |
149 | |
150 | SOC_SINGLE_TLV("Mic Boost Volume" , AK4641_MIC, 0, 1, 0, mic_boost_tlv), |
151 | |
152 | SOC_SINGLE("ALC Operation Time" , AK4641_TIMER, 0, 3, 0), |
153 | SOC_SINGLE("ALC Recovery Time" , AK4641_TIMER, 2, 3, 0), |
154 | SOC_SINGLE("ALC ZC Time" , AK4641_TIMER, 4, 3, 0), |
155 | |
156 | SOC_SINGLE("ALC 1 Switch" , AK4641_ALC1, 5, 1, 0), |
157 | |
158 | SOC_SINGLE_TLV("ALC Volume" , AK4641_ALC2, 0, 71, 0, alc_tlv), |
159 | SOC_SINGLE("Left Out Enable Switch" , AK4641_SIG2, 1, 1, 0), |
160 | SOC_SINGLE("Right Out Enable Switch" , AK4641_SIG2, 0, 1, 0), |
161 | |
162 | SOC_SINGLE_TLV("Capture Volume" , AK4641_PGA, 0, 71, 0, capture_tlv), |
163 | |
164 | SOC_DOUBLE_R_TLV("Master Playback Volume" , AK4641_LATT, |
165 | AK4641_RATT, 0, 255, 1, master_tlv), |
166 | |
167 | SOC_SINGLE_TLV("AUX In Volume" , AK4641_VOL, 0, 15, 0, aux_in_tlv), |
168 | |
169 | SOC_SINGLE("Equalizer Switch" , AK4641_DAC, 2, 1, 0), |
170 | SOC_SINGLE_TLV("EQ1 100 Hz Volume" , AK4641_EQLO, 0, 15, 1, eq_tlv), |
171 | SOC_SINGLE_TLV("EQ2 250 Hz Volume" , AK4641_EQLO, 4, 15, 1, eq_tlv), |
172 | SOC_SINGLE_TLV("EQ3 1 kHz Volume" , AK4641_EQMID, 0, 15, 1, eq_tlv), |
173 | SOC_SINGLE_TLV("EQ4 3.5 kHz Volume" , AK4641_EQMID, 4, 15, 1, eq_tlv), |
174 | SOC_SINGLE_TLV("EQ5 10 kHz Volume" , AK4641_EQHI, 0, 15, 1, eq_tlv), |
175 | }; |
176 | |
177 | /* Mono 1 Mixer */ |
178 | static const struct snd_kcontrol_new ak4641_mono1_mixer_controls[] = { |
179 | SOC_DAPM_SINGLE_TLV("Mic Mono Sidetone Volume" , AK4641_VOL, 7, 1, 0, |
180 | mic_mono_sidetone_tlv), |
181 | SOC_DAPM_SINGLE("Mic Mono Sidetone Switch" , AK4641_SIG1, 4, 1, 0), |
182 | SOC_DAPM_SINGLE("Mono Playback Switch" , AK4641_SIG1, 5, 1, 0), |
183 | }; |
184 | |
185 | /* Stereo Mixer */ |
186 | static const struct snd_kcontrol_new ak4641_stereo_mixer_controls[] = { |
187 | SOC_DAPM_SINGLE_TLV("Mic Sidetone Volume" , AK4641_VOL, 4, 7, 0, |
188 | mic_stereo_sidetone_tlv), |
189 | SOC_DAPM_SINGLE("Mic Sidetone Switch" , AK4641_SIG2, 4, 1, 0), |
190 | SOC_DAPM_SINGLE("Playback Switch" , AK4641_SIG2, 7, 1, 0), |
191 | SOC_DAPM_SINGLE("Aux Bypass Switch" , AK4641_SIG2, 5, 1, 0), |
192 | }; |
193 | |
194 | /* Input Mixer */ |
195 | static const struct snd_kcontrol_new ak4641_input_mixer_controls[] = { |
196 | SOC_DAPM_SINGLE("Mic Capture Switch" , AK4641_MIC, 2, 1, 0), |
197 | SOC_DAPM_SINGLE("Aux Capture Switch" , AK4641_MIC, 5, 1, 0), |
198 | }; |
199 | |
200 | /* Mic mux */ |
201 | static const struct snd_kcontrol_new ak4641_mic_mux_control = |
202 | SOC_DAPM_ENUM("Mic Select" , ak4641_mic_select_enum); |
203 | |
204 | /* Input mux */ |
205 | static const struct snd_kcontrol_new ak4641_input_mux_control = |
206 | SOC_DAPM_ENUM("Input Select" , ak4641_mic_or_dac_enum); |
207 | |
208 | /* mono 2 switch */ |
209 | static const struct snd_kcontrol_new ak4641_mono2_control = |
210 | SOC_DAPM_SINGLE("Switch" , AK4641_SIG1, 0, 1, 0); |
211 | |
212 | /* ak4641 dapm widgets */ |
213 | static const struct snd_soc_dapm_widget ak4641_dapm_widgets[] = { |
214 | SND_SOC_DAPM_MIXER("Stereo Mixer" , SND_SOC_NOPM, 0, 0, |
215 | &ak4641_stereo_mixer_controls[0], |
216 | ARRAY_SIZE(ak4641_stereo_mixer_controls)), |
217 | SND_SOC_DAPM_MIXER("Mono1 Mixer" , SND_SOC_NOPM, 0, 0, |
218 | &ak4641_mono1_mixer_controls[0], |
219 | ARRAY_SIZE(ak4641_mono1_mixer_controls)), |
220 | SND_SOC_DAPM_MIXER("Input Mixer" , SND_SOC_NOPM, 0, 0, |
221 | &ak4641_input_mixer_controls[0], |
222 | ARRAY_SIZE(ak4641_input_mixer_controls)), |
223 | SND_SOC_DAPM_MUX("Mic Mux" , SND_SOC_NOPM, 0, 0, |
224 | &ak4641_mic_mux_control), |
225 | SND_SOC_DAPM_MUX("Input Mux" , SND_SOC_NOPM, 0, 0, |
226 | &ak4641_input_mux_control), |
227 | SND_SOC_DAPM_SWITCH("Mono 2 Enable" , SND_SOC_NOPM, 0, 0, |
228 | &ak4641_mono2_control), |
229 | |
230 | SND_SOC_DAPM_OUTPUT("LOUT" ), |
231 | SND_SOC_DAPM_OUTPUT("ROUT" ), |
232 | SND_SOC_DAPM_OUTPUT("MOUT1" ), |
233 | SND_SOC_DAPM_OUTPUT("MOUT2" ), |
234 | SND_SOC_DAPM_OUTPUT("MICOUT" ), |
235 | |
236 | SND_SOC_DAPM_ADC("ADC" , "HiFi Capture" , AK4641_PM1, 0, 0), |
237 | SND_SOC_DAPM_PGA("Mic" , AK4641_PM1, 1, 0, NULL, 0), |
238 | SND_SOC_DAPM_PGA("AUX In" , AK4641_PM1, 2, 0, NULL, 0), |
239 | SND_SOC_DAPM_PGA("Mono Out" , AK4641_PM1, 3, 0, NULL, 0), |
240 | SND_SOC_DAPM_PGA("Line Out" , AK4641_PM1, 4, 0, NULL, 0), |
241 | |
242 | SND_SOC_DAPM_DAC("DAC" , "HiFi Playback" , AK4641_PM2, 0, 0), |
243 | SND_SOC_DAPM_PGA("Mono Out 2" , AK4641_PM2, 3, 0, NULL, 0), |
244 | |
245 | SND_SOC_DAPM_ADC("Voice ADC" , "Voice Capture" , AK4641_BTIF, 0, 0), |
246 | SND_SOC_DAPM_DAC("Voice DAC" , "Voice Playback" , AK4641_BTIF, 1, 0), |
247 | |
248 | SND_SOC_DAPM_MICBIAS("Mic Int Bias" , AK4641_MIC, 3, 0), |
249 | SND_SOC_DAPM_MICBIAS("Mic Ext Bias" , AK4641_MIC, 4, 0), |
250 | |
251 | SND_SOC_DAPM_INPUT("MICIN" ), |
252 | SND_SOC_DAPM_INPUT("MICEXT" ), |
253 | SND_SOC_DAPM_INPUT("AUX" ), |
254 | SND_SOC_DAPM_INPUT("AIN" ), |
255 | }; |
256 | |
257 | static const struct snd_soc_dapm_route ak4641_audio_map[] = { |
258 | /* Stereo Mixer */ |
259 | {"Stereo Mixer" , "Playback Switch" , "DAC" }, |
260 | {"Stereo Mixer" , "Mic Sidetone Switch" , "Input Mux" }, |
261 | {"Stereo Mixer" , "Aux Bypass Switch" , "AUX In" }, |
262 | |
263 | /* Mono 1 Mixer */ |
264 | {"Mono1 Mixer" , "Mic Mono Sidetone Switch" , "Input Mux" }, |
265 | {"Mono1 Mixer" , "Mono Playback Switch" , "DAC" }, |
266 | |
267 | /* Mic */ |
268 | {"Mic" , NULL, "AIN" }, |
269 | {"Mic Mux" , "Internal" , "Mic Int Bias" }, |
270 | {"Mic Mux" , "External" , "Mic Ext Bias" }, |
271 | {"Mic Int Bias" , NULL, "MICIN" }, |
272 | {"Mic Ext Bias" , NULL, "MICEXT" }, |
273 | {"MICOUT" , NULL, "Mic Mux" }, |
274 | |
275 | /* Input Mux */ |
276 | {"Input Mux" , "Microphone" , "Mic" }, |
277 | {"Input Mux" , "Voice DAC" , "Voice DAC" }, |
278 | |
279 | /* Line Out */ |
280 | {"LOUT" , NULL, "Line Out" }, |
281 | {"ROUT" , NULL, "Line Out" }, |
282 | {"Line Out" , NULL, "Stereo Mixer" }, |
283 | |
284 | /* Mono 1 Out */ |
285 | {"MOUT1" , NULL, "Mono Out" }, |
286 | {"Mono Out" , NULL, "Mono1 Mixer" }, |
287 | |
288 | /* Mono 2 Out */ |
289 | {"MOUT2" , NULL, "Mono 2 Enable" }, |
290 | {"Mono 2 Enable" , "Switch" , "Mono Out 2" }, |
291 | {"Mono Out 2" , NULL, "Stereo Mixer" }, |
292 | |
293 | {"Voice ADC" , NULL, "Mono 2 Enable" }, |
294 | |
295 | /* Aux In */ |
296 | {"AUX In" , NULL, "AUX" }, |
297 | |
298 | /* ADC */ |
299 | {"ADC" , NULL, "Input Mixer" }, |
300 | {"Input Mixer" , "Mic Capture Switch" , "Mic" }, |
301 | {"Input Mixer" , "Aux Capture Switch" , "AUX In" }, |
302 | }; |
303 | |
304 | static int ak4641_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
305 | int clk_id, unsigned int freq, int dir) |
306 | { |
307 | struct snd_soc_component *component = codec_dai->component; |
308 | struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(c: component); |
309 | |
310 | ak4641->sysclk = freq; |
311 | return 0; |
312 | } |
313 | |
314 | static int ak4641_i2s_hw_params(struct snd_pcm_substream *substream, |
315 | struct snd_pcm_hw_params *params, |
316 | struct snd_soc_dai *dai) |
317 | { |
318 | struct snd_soc_component *component = dai->component; |
319 | struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(c: component); |
320 | int rate = params_rate(p: params), fs = 256; |
321 | u8 mode2; |
322 | |
323 | if (rate) |
324 | fs = ak4641->sysclk / rate; |
325 | else |
326 | return -EINVAL; |
327 | |
328 | /* set fs */ |
329 | switch (fs) { |
330 | case 1024: |
331 | mode2 = (0x2 << 5); |
332 | break; |
333 | case 512: |
334 | mode2 = (0x1 << 5); |
335 | break; |
336 | case 256: |
337 | mode2 = (0x0 << 5); |
338 | break; |
339 | default: |
340 | dev_err(component->dev, "Error: unsupported fs=%d\n" , fs); |
341 | return -EINVAL; |
342 | } |
343 | |
344 | snd_soc_component_update_bits(component, AK4641_MODE2, mask: (0x3 << 5), val: mode2); |
345 | |
346 | /* Update de-emphasis filter for the new rate */ |
347 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
348 | ak4641->playback_fs = rate; |
349 | ak4641_set_deemph(component); |
350 | } |
351 | |
352 | return 0; |
353 | } |
354 | |
355 | static int ak4641_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai, |
356 | unsigned int fmt) |
357 | { |
358 | struct snd_soc_component *component = codec_dai->component; |
359 | u8 btif; |
360 | int ret; |
361 | |
362 | /* interface format */ |
363 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
364 | case SND_SOC_DAIFMT_I2S: |
365 | btif = (0x3 << 5); |
366 | break; |
367 | case SND_SOC_DAIFMT_LEFT_J: |
368 | btif = (0x2 << 5); |
369 | break; |
370 | case SND_SOC_DAIFMT_DSP_A: /* MSB after FRM */ |
371 | btif = (0x0 << 5); |
372 | break; |
373 | case SND_SOC_DAIFMT_DSP_B: /* MSB during FRM */ |
374 | btif = (0x1 << 5); |
375 | break; |
376 | default: |
377 | return -EINVAL; |
378 | } |
379 | |
380 | ret = snd_soc_component_update_bits(component, AK4641_BTIF, mask: (0x3 << 5), val: btif); |
381 | if (ret < 0) |
382 | return ret; |
383 | |
384 | return 0; |
385 | } |
386 | |
387 | static int ak4641_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai, |
388 | unsigned int fmt) |
389 | { |
390 | struct snd_soc_component *component = codec_dai->component; |
391 | u8 mode1 = 0; |
392 | |
393 | /* interface format */ |
394 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
395 | case SND_SOC_DAIFMT_I2S: |
396 | mode1 = 0x02; |
397 | break; |
398 | case SND_SOC_DAIFMT_LEFT_J: |
399 | mode1 = 0x01; |
400 | break; |
401 | default: |
402 | return -EINVAL; |
403 | } |
404 | |
405 | return snd_soc_component_write(component, AK4641_MODE1, val: mode1); |
406 | } |
407 | |
408 | static int ak4641_mute(struct snd_soc_dai *dai, int mute, int direction) |
409 | { |
410 | struct snd_soc_component *component = dai->component; |
411 | |
412 | return snd_soc_component_update_bits(component, AK4641_DAC, mask: 0x20, val: mute ? 0x20 : 0); |
413 | } |
414 | |
415 | static int ak4641_set_bias_level(struct snd_soc_component *component, |
416 | enum snd_soc_bias_level level) |
417 | { |
418 | struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(c: component); |
419 | struct ak4641_platform_data *pdata = component->dev->platform_data; |
420 | int ret; |
421 | |
422 | switch (level) { |
423 | case SND_SOC_BIAS_ON: |
424 | /* unmute */ |
425 | snd_soc_component_update_bits(component, AK4641_DAC, mask: 0x20, val: 0); |
426 | break; |
427 | case SND_SOC_BIAS_PREPARE: |
428 | /* mute */ |
429 | snd_soc_component_update_bits(component, AK4641_DAC, mask: 0x20, val: 0x20); |
430 | break; |
431 | case SND_SOC_BIAS_STANDBY: |
432 | if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { |
433 | if (pdata && gpio_is_valid(number: pdata->gpio_power)) |
434 | gpio_set_value(gpio: pdata->gpio_power, value: 1); |
435 | mdelay(1); |
436 | if (pdata && gpio_is_valid(number: pdata->gpio_npdn)) |
437 | gpio_set_value(gpio: pdata->gpio_npdn, value: 1); |
438 | mdelay(1); |
439 | |
440 | ret = regcache_sync(map: ak4641->regmap); |
441 | if (ret) { |
442 | dev_err(component->dev, |
443 | "Failed to sync cache: %d\n" , ret); |
444 | return ret; |
445 | } |
446 | } |
447 | snd_soc_component_update_bits(component, AK4641_PM1, mask: 0x80, val: 0x80); |
448 | snd_soc_component_update_bits(component, AK4641_PM2, mask: 0x80, val: 0); |
449 | break; |
450 | case SND_SOC_BIAS_OFF: |
451 | snd_soc_component_update_bits(component, AK4641_PM1, mask: 0x80, val: 0); |
452 | if (pdata && gpio_is_valid(number: pdata->gpio_npdn)) |
453 | gpio_set_value(gpio: pdata->gpio_npdn, value: 0); |
454 | if (pdata && gpio_is_valid(number: pdata->gpio_power)) |
455 | gpio_set_value(gpio: pdata->gpio_power, value: 0); |
456 | regcache_mark_dirty(map: ak4641->regmap); |
457 | break; |
458 | } |
459 | return 0; |
460 | } |
461 | |
462 | #define AK4641_RATES (SNDRV_PCM_RATE_8000_48000) |
463 | #define AK4641_RATES_BT (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
464 | SNDRV_PCM_RATE_16000) |
465 | #define AK4641_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) |
466 | |
467 | static const struct snd_soc_dai_ops ak4641_i2s_dai_ops = { |
468 | .hw_params = ak4641_i2s_hw_params, |
469 | .set_fmt = ak4641_i2s_set_dai_fmt, |
470 | .mute_stream = ak4641_mute, |
471 | .set_sysclk = ak4641_set_dai_sysclk, |
472 | .no_capture_mute = 1, |
473 | }; |
474 | |
475 | static const struct snd_soc_dai_ops ak4641_pcm_dai_ops = { |
476 | .hw_params = NULL, /* rates are controlled by BT chip */ |
477 | .set_fmt = ak4641_pcm_set_dai_fmt, |
478 | .mute_stream = ak4641_mute, |
479 | .set_sysclk = ak4641_set_dai_sysclk, |
480 | .no_capture_mute = 1, |
481 | }; |
482 | |
483 | static struct snd_soc_dai_driver ak4641_dai[] = { |
484 | { |
485 | .name = "ak4641-hifi" , |
486 | .id = 1, |
487 | .playback = { |
488 | .stream_name = "HiFi Playback" , |
489 | .channels_min = 1, |
490 | .channels_max = 2, |
491 | .rates = AK4641_RATES, |
492 | .formats = AK4641_FORMATS, |
493 | }, |
494 | .capture = { |
495 | .stream_name = "HiFi Capture" , |
496 | .channels_min = 1, |
497 | .channels_max = 2, |
498 | .rates = AK4641_RATES, |
499 | .formats = AK4641_FORMATS, |
500 | }, |
501 | .ops = &ak4641_i2s_dai_ops, |
502 | .symmetric_rate = 1, |
503 | }, |
504 | { |
505 | .name = "ak4641-voice" , |
506 | .id = 1, |
507 | .playback = { |
508 | .stream_name = "Voice Playback" , |
509 | .channels_min = 1, |
510 | .channels_max = 1, |
511 | .rates = AK4641_RATES_BT, |
512 | .formats = AK4641_FORMATS, |
513 | }, |
514 | .capture = { |
515 | .stream_name = "Voice Capture" , |
516 | .channels_min = 1, |
517 | .channels_max = 1, |
518 | .rates = AK4641_RATES_BT, |
519 | .formats = AK4641_FORMATS, |
520 | }, |
521 | .ops = &ak4641_pcm_dai_ops, |
522 | .symmetric_rate = 1, |
523 | }, |
524 | }; |
525 | |
526 | static const struct snd_soc_component_driver soc_component_dev_ak4641 = { |
527 | .controls = ak4641_snd_controls, |
528 | .num_controls = ARRAY_SIZE(ak4641_snd_controls), |
529 | .dapm_widgets = ak4641_dapm_widgets, |
530 | .num_dapm_widgets = ARRAY_SIZE(ak4641_dapm_widgets), |
531 | .dapm_routes = ak4641_audio_map, |
532 | .num_dapm_routes = ARRAY_SIZE(ak4641_audio_map), |
533 | .set_bias_level = ak4641_set_bias_level, |
534 | .suspend_bias_off = 1, |
535 | .idle_bias_on = 1, |
536 | .use_pmdown_time = 1, |
537 | .endianness = 1, |
538 | }; |
539 | |
540 | static const struct regmap_config ak4641_regmap = { |
541 | .reg_bits = 8, |
542 | .val_bits = 8, |
543 | |
544 | .max_register = AK4641_BTIF, |
545 | .reg_defaults = ak4641_reg_defaults, |
546 | .num_reg_defaults = ARRAY_SIZE(ak4641_reg_defaults), |
547 | .cache_type = REGCACHE_RBTREE, |
548 | }; |
549 | |
550 | static int ak4641_i2c_probe(struct i2c_client *i2c) |
551 | { |
552 | struct ak4641_platform_data *pdata = i2c->dev.platform_data; |
553 | struct ak4641_priv *ak4641; |
554 | int ret; |
555 | |
556 | ak4641 = devm_kzalloc(dev: &i2c->dev, size: sizeof(struct ak4641_priv), |
557 | GFP_KERNEL); |
558 | if (!ak4641) |
559 | return -ENOMEM; |
560 | |
561 | ak4641->regmap = devm_regmap_init_i2c(i2c, &ak4641_regmap); |
562 | if (IS_ERR(ptr: ak4641->regmap)) |
563 | return PTR_ERR(ptr: ak4641->regmap); |
564 | |
565 | if (pdata) { |
566 | if (gpio_is_valid(number: pdata->gpio_power)) { |
567 | ret = gpio_request_one(gpio: pdata->gpio_power, |
568 | GPIOF_OUT_INIT_LOW, label: "ak4641 power" ); |
569 | if (ret) |
570 | goto err_out; |
571 | } |
572 | if (gpio_is_valid(number: pdata->gpio_npdn)) { |
573 | ret = gpio_request_one(gpio: pdata->gpio_npdn, |
574 | GPIOF_OUT_INIT_LOW, label: "ak4641 npdn" ); |
575 | if (ret) |
576 | goto err_gpio; |
577 | |
578 | udelay(1); /* > 150 ns */ |
579 | gpio_set_value(gpio: pdata->gpio_npdn, value: 1); |
580 | } |
581 | } |
582 | |
583 | i2c_set_clientdata(client: i2c, data: ak4641); |
584 | |
585 | ret = devm_snd_soc_register_component(dev: &i2c->dev, |
586 | component_driver: &soc_component_dev_ak4641, |
587 | dai_drv: ak4641_dai, ARRAY_SIZE(ak4641_dai)); |
588 | if (ret != 0) |
589 | goto err_gpio2; |
590 | |
591 | return 0; |
592 | |
593 | err_gpio2: |
594 | if (pdata) { |
595 | if (gpio_is_valid(number: pdata->gpio_power)) |
596 | gpio_set_value(gpio: pdata->gpio_power, value: 0); |
597 | if (gpio_is_valid(number: pdata->gpio_npdn)) |
598 | gpio_free(gpio: pdata->gpio_npdn); |
599 | } |
600 | err_gpio: |
601 | if (pdata && gpio_is_valid(number: pdata->gpio_power)) |
602 | gpio_free(gpio: pdata->gpio_power); |
603 | err_out: |
604 | return ret; |
605 | } |
606 | |
607 | static void ak4641_i2c_remove(struct i2c_client *i2c) |
608 | { |
609 | struct ak4641_platform_data *pdata = i2c->dev.platform_data; |
610 | |
611 | if (pdata) { |
612 | if (gpio_is_valid(number: pdata->gpio_power)) { |
613 | gpio_set_value(gpio: pdata->gpio_power, value: 0); |
614 | gpio_free(gpio: pdata->gpio_power); |
615 | } |
616 | if (gpio_is_valid(number: pdata->gpio_npdn)) |
617 | gpio_free(gpio: pdata->gpio_npdn); |
618 | } |
619 | } |
620 | |
621 | static const struct i2c_device_id ak4641_i2c_id[] = { |
622 | { "ak4641" , 0 }, |
623 | { } |
624 | }; |
625 | MODULE_DEVICE_TABLE(i2c, ak4641_i2c_id); |
626 | |
627 | static struct i2c_driver ak4641_i2c_driver = { |
628 | .driver = { |
629 | .name = "ak4641" , |
630 | }, |
631 | .probe = ak4641_i2c_probe, |
632 | .remove = ak4641_i2c_remove, |
633 | .id_table = ak4641_i2c_id, |
634 | }; |
635 | |
636 | module_i2c_driver(ak4641_i2c_driver); |
637 | |
638 | MODULE_DESCRIPTION("SoC AK4641 driver" ); |
639 | MODULE_AUTHOR("Harald Welte <laforge@gnufiish.org>" ); |
640 | MODULE_LICENSE("GPL" ); |
641 | |