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1 | /* |
2 | * ak4641.c -- AK4641 ALSA Soc Audio driver | |
3 | * | |
4 | * Copyright (C) 2008 Harald Welte <laforge@gnufiish.org> | |
5 | * Copyright (C) 2011 Dmitry Artamonow <mad_soft@inbox.ru> | |
6 | * | |
7 | * Based on ak4535.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 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/delay.h> | |
17 | #include <linux/gpio.h> | |
18 | #include <linux/pm.h> | |
19 | #include <linux/i2c.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/slab.h> | |
22 | #include <sound/core.h> | |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/initval.h> | |
27 | #include <sound/tlv.h> | |
28 | #include <sound/ak4641.h> | |
29 | ||
30 | #include "ak4641.h" | |
31 | ||
32 | /* codec private data */ | |
33 | struct ak4641_priv { | |
00d27010 DA |
34 | unsigned int sysclk; |
35 | int deemph; | |
36 | int playback_fs; | |
37 | }; | |
38 | ||
39 | /* | |
40 | * ak4641 register cache | |
41 | */ | |
42 | static const u8 ak4641_reg[AK4641_CACHEREGNUM] = { | |
43 | 0x00, 0x80, 0x00, 0x80, | |
44 | 0x02, 0x00, 0x11, 0x05, | |
45 | 0x00, 0x00, 0x36, 0x10, | |
46 | 0x00, 0x00, 0x57, 0x00, | |
47 | 0x88, 0x88, 0x08, 0x08 | |
48 | }; | |
49 | ||
50 | static const int deemph_settings[] = {44100, 0, 48000, 32000}; | |
51 | ||
52 | static int ak4641_set_deemph(struct snd_soc_codec *codec) | |
53 | { | |
54 | struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); | |
55 | int i, best = 0; | |
56 | ||
57 | for (i = 0 ; i < ARRAY_SIZE(deemph_settings); i++) { | |
58 | /* if deemphasis is on, select the nearest available rate */ | |
59 | if (ak4641->deemph && deemph_settings[i] != 0 && | |
60 | abs(deemph_settings[i] - ak4641->playback_fs) < | |
61 | abs(deemph_settings[best] - ak4641->playback_fs)) | |
62 | best = i; | |
63 | ||
64 | if (!ak4641->deemph && deemph_settings[i] == 0) | |
65 | best = i; | |
66 | } | |
67 | ||
68 | dev_dbg(codec->dev, "Set deemphasis %d\n", best); | |
69 | ||
70 | return snd_soc_update_bits(codec, AK4641_DAC, 0x3, best); | |
71 | } | |
72 | ||
73 | static int ak4641_put_deemph(struct snd_kcontrol *kcontrol, | |
74 | struct snd_ctl_elem_value *ucontrol) | |
75 | { | |
76 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
77 | struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); | |
78 | int deemph = ucontrol->value.enumerated.item[0]; | |
79 | ||
80 | if (deemph > 1) | |
81 | return -EINVAL; | |
82 | ||
83 | ak4641->deemph = deemph; | |
84 | ||
85 | return ak4641_set_deemph(codec); | |
86 | } | |
87 | ||
88 | static int ak4641_get_deemph(struct snd_kcontrol *kcontrol, | |
89 | struct snd_ctl_elem_value *ucontrol) | |
90 | { | |
91 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
92 | struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); | |
93 | ||
94 | ucontrol->value.enumerated.item[0] = ak4641->deemph; | |
95 | return 0; | |
96 | }; | |
97 | ||
98 | static const char *ak4641_mono_out[] = {"(L + R)/2", "Hi-Z"}; | |
99 | static const char *ak4641_hp_out[] = {"Stereo", "Mono"}; | |
100 | static const char *ak4641_mic_select[] = {"Internal", "External"}; | |
101 | static const char *ak4641_mic_or_dac[] = {"Microphone", "Voice DAC"}; | |
102 | ||
103 | ||
104 | static const DECLARE_TLV_DB_SCALE(mono_gain_tlv, -1700, 2300, 0); | |
105 | static const DECLARE_TLV_DB_SCALE(mic_boost_tlv, 0, 2000, 0); | |
106 | static const DECLARE_TLV_DB_SCALE(eq_tlv, -1050, 150, 0); | |
107 | static const DECLARE_TLV_DB_SCALE(master_tlv, -12750, 50, 0); | |
108 | static const DECLARE_TLV_DB_SCALE(mic_stereo_sidetone_tlv, -2700, 300, 0); | |
109 | static const DECLARE_TLV_DB_SCALE(mic_mono_sidetone_tlv, -400, 400, 0); | |
110 | static const DECLARE_TLV_DB_SCALE(capture_tlv, -800, 50, 0); | |
111 | static const DECLARE_TLV_DB_SCALE(alc_tlv, -800, 50, 0); | |
112 | static const DECLARE_TLV_DB_SCALE(aux_in_tlv, -2100, 300, 0); | |
113 | ||
114 | ||
115 | static const struct soc_enum ak4641_mono_out_enum = | |
116 | SOC_ENUM_SINGLE(AK4641_SIG1, 6, 2, ak4641_mono_out); | |
117 | static const struct soc_enum ak4641_hp_out_enum = | |
118 | SOC_ENUM_SINGLE(AK4641_MODE2, 2, 2, ak4641_hp_out); | |
119 | static const struct soc_enum ak4641_mic_select_enum = | |
120 | SOC_ENUM_SINGLE(AK4641_MIC, 1, 2, ak4641_mic_select); | |
121 | static const struct soc_enum ak4641_mic_or_dac_enum = | |
122 | SOC_ENUM_SINGLE(AK4641_BTIF, 4, 2, ak4641_mic_or_dac); | |
123 | ||
124 | static const struct snd_kcontrol_new ak4641_snd_controls[] = { | |
125 | SOC_ENUM("Mono 1 Output", ak4641_mono_out_enum), | |
126 | SOC_SINGLE_TLV("Mono 1 Gain Volume", AK4641_SIG1, 7, 1, 1, | |
127 | mono_gain_tlv), | |
128 | SOC_ENUM("Headphone Output", ak4641_hp_out_enum), | |
129 | SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0, | |
130 | ak4641_get_deemph, ak4641_put_deemph), | |
131 | ||
132 | SOC_SINGLE_TLV("Mic Boost Volume", AK4641_MIC, 0, 1, 0, mic_boost_tlv), | |
133 | ||
134 | SOC_SINGLE("ALC Operation Time", AK4641_TIMER, 0, 3, 0), | |
135 | SOC_SINGLE("ALC Recovery Time", AK4641_TIMER, 2, 3, 0), | |
136 | SOC_SINGLE("ALC ZC Time", AK4641_TIMER, 4, 3, 0), | |
137 | ||
138 | SOC_SINGLE("ALC 1 Switch", AK4641_ALC1, 5, 1, 0), | |
139 | ||
140 | SOC_SINGLE_TLV("ALC Volume", AK4641_ALC2, 0, 71, 0, alc_tlv), | |
141 | SOC_SINGLE("Left Out Enable Switch", AK4641_SIG2, 1, 1, 0), | |
142 | SOC_SINGLE("Right Out Enable Switch", AK4641_SIG2, 0, 1, 0), | |
143 | ||
144 | SOC_SINGLE_TLV("Capture Volume", AK4641_PGA, 0, 71, 0, capture_tlv), | |
145 | ||
146 | SOC_DOUBLE_R_TLV("Master Playback Volume", AK4641_LATT, | |
147 | AK4641_RATT, 0, 255, 1, master_tlv), | |
148 | ||
149 | SOC_SINGLE_TLV("AUX In Volume", AK4641_VOL, 0, 15, 0, aux_in_tlv), | |
150 | ||
151 | SOC_SINGLE("Equalizer Switch", AK4641_DAC, 2, 1, 0), | |
152 | SOC_SINGLE_TLV("EQ1 100 Hz Volume", AK4641_EQLO, 0, 15, 1, eq_tlv), | |
153 | SOC_SINGLE_TLV("EQ2 250 Hz Volume", AK4641_EQLO, 4, 15, 1, eq_tlv), | |
154 | SOC_SINGLE_TLV("EQ3 1 kHz Volume", AK4641_EQMID, 0, 15, 1, eq_tlv), | |
155 | SOC_SINGLE_TLV("EQ4 3.5 kHz Volume", AK4641_EQMID, 4, 15, 1, eq_tlv), | |
156 | SOC_SINGLE_TLV("EQ5 10 kHz Volume", AK4641_EQHI, 0, 15, 1, eq_tlv), | |
157 | }; | |
158 | ||
159 | /* Mono 1 Mixer */ | |
160 | static const struct snd_kcontrol_new ak4641_mono1_mixer_controls[] = { | |
161 | SOC_DAPM_SINGLE_TLV("Mic Mono Sidetone Volume", AK4641_VOL, 7, 1, 0, | |
162 | mic_mono_sidetone_tlv), | |
163 | SOC_DAPM_SINGLE("Mic Mono Sidetone Switch", AK4641_SIG1, 4, 1, 0), | |
164 | SOC_DAPM_SINGLE("Mono Playback Switch", AK4641_SIG1, 5, 1, 0), | |
165 | }; | |
166 | ||
167 | /* Stereo Mixer */ | |
168 | static const struct snd_kcontrol_new ak4641_stereo_mixer_controls[] = { | |
169 | SOC_DAPM_SINGLE_TLV("Mic Sidetone Volume", AK4641_VOL, 4, 7, 0, | |
170 | mic_stereo_sidetone_tlv), | |
171 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4641_SIG2, 4, 1, 0), | |
172 | SOC_DAPM_SINGLE("Playback Switch", AK4641_SIG2, 7, 1, 0), | |
173 | SOC_DAPM_SINGLE("Aux Bypass Switch", AK4641_SIG2, 5, 1, 0), | |
174 | }; | |
175 | ||
176 | /* Input Mixer */ | |
177 | static const struct snd_kcontrol_new ak4641_input_mixer_controls[] = { | |
178 | SOC_DAPM_SINGLE("Mic Capture Switch", AK4641_MIC, 2, 1, 0), | |
179 | SOC_DAPM_SINGLE("Aux Capture Switch", AK4641_MIC, 5, 1, 0), | |
180 | }; | |
181 | ||
182 | /* Mic mux */ | |
183 | static const struct snd_kcontrol_new ak4641_mic_mux_control = | |
184 | SOC_DAPM_ENUM("Mic Select", ak4641_mic_select_enum); | |
185 | ||
186 | /* Input mux */ | |
187 | static const struct snd_kcontrol_new ak4641_input_mux_control = | |
188 | SOC_DAPM_ENUM("Input Select", ak4641_mic_or_dac_enum); | |
189 | ||
190 | /* mono 2 switch */ | |
191 | static const struct snd_kcontrol_new ak4641_mono2_control = | |
192 | SOC_DAPM_SINGLE("Switch", AK4641_SIG1, 0, 1, 0); | |
193 | ||
194 | /* ak4641 dapm widgets */ | |
195 | static const struct snd_soc_dapm_widget ak4641_dapm_widgets[] = { | |
196 | SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0, | |
197 | &ak4641_stereo_mixer_controls[0], | |
198 | ARRAY_SIZE(ak4641_stereo_mixer_controls)), | |
199 | SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0, | |
200 | &ak4641_mono1_mixer_controls[0], | |
201 | ARRAY_SIZE(ak4641_mono1_mixer_controls)), | |
202 | SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, | |
203 | &ak4641_input_mixer_controls[0], | |
204 | ARRAY_SIZE(ak4641_input_mixer_controls)), | |
205 | SND_SOC_DAPM_MUX("Mic Mux", SND_SOC_NOPM, 0, 0, | |
206 | &ak4641_mic_mux_control), | |
207 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, | |
208 | &ak4641_input_mux_control), | |
209 | SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0, | |
210 | &ak4641_mono2_control), | |
211 | ||
212 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
213 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
214 | SND_SOC_DAPM_OUTPUT("MOUT1"), | |
215 | SND_SOC_DAPM_OUTPUT("MOUT2"), | |
216 | SND_SOC_DAPM_OUTPUT("MICOUT"), | |
217 | ||
218 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", AK4641_PM1, 0, 0), | |
219 | SND_SOC_DAPM_PGA("Mic", AK4641_PM1, 1, 0, NULL, 0), | |
220 | SND_SOC_DAPM_PGA("AUX In", AK4641_PM1, 2, 0, NULL, 0), | |
221 | SND_SOC_DAPM_PGA("Mono Out", AK4641_PM1, 3, 0, NULL, 0), | |
222 | SND_SOC_DAPM_PGA("Line Out", AK4641_PM1, 4, 0, NULL, 0), | |
223 | ||
224 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", AK4641_PM2, 0, 0), | |
225 | SND_SOC_DAPM_PGA("Mono Out 2", AK4641_PM2, 3, 0, NULL, 0), | |
226 | ||
227 | SND_SOC_DAPM_ADC("Voice ADC", "Voice Capture", AK4641_BTIF, 0, 0), | |
24441e17 | 228 | SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", AK4641_BTIF, 1, 0), |
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229 | |
230 | SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4641_MIC, 3, 0), | |
231 | SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4641_MIC, 4, 0), | |
232 | ||
233 | SND_SOC_DAPM_INPUT("MICIN"), | |
234 | SND_SOC_DAPM_INPUT("MICEXT"), | |
235 | SND_SOC_DAPM_INPUT("AUX"), | |
236 | SND_SOC_DAPM_INPUT("AIN"), | |
237 | }; | |
238 | ||
239 | static const struct snd_soc_dapm_route ak4641_audio_map[] = { | |
240 | /* Stereo Mixer */ | |
241 | {"Stereo Mixer", "Playback Switch", "DAC"}, | |
242 | {"Stereo Mixer", "Mic Sidetone Switch", "Input Mux"}, | |
243 | {"Stereo Mixer", "Aux Bypass Switch", "AUX In"}, | |
244 | ||
245 | /* Mono 1 Mixer */ | |
246 | {"Mono1 Mixer", "Mic Mono Sidetone Switch", "Input Mux"}, | |
247 | {"Mono1 Mixer", "Mono Playback Switch", "DAC"}, | |
248 | ||
249 | /* Mic */ | |
250 | {"Mic", NULL, "AIN"}, | |
251 | {"Mic Mux", "Internal", "Mic Int Bias"}, | |
252 | {"Mic Mux", "External", "Mic Ext Bias"}, | |
253 | {"Mic Int Bias", NULL, "MICIN"}, | |
254 | {"Mic Ext Bias", NULL, "MICEXT"}, | |
255 | {"MICOUT", NULL, "Mic Mux"}, | |
256 | ||
257 | /* Input Mux */ | |
258 | {"Input Mux", "Microphone", "Mic"}, | |
259 | {"Input Mux", "Voice DAC", "Voice DAC"}, | |
260 | ||
261 | /* Line Out */ | |
262 | {"LOUT", NULL, "Line Out"}, | |
263 | {"ROUT", NULL, "Line Out"}, | |
264 | {"Line Out", NULL, "Stereo Mixer"}, | |
265 | ||
266 | /* Mono 1 Out */ | |
267 | {"MOUT1", NULL, "Mono Out"}, | |
268 | {"Mono Out", NULL, "Mono1 Mixer"}, | |
269 | ||
270 | /* Mono 2 Out */ | |
271 | {"MOUT2", NULL, "Mono 2 Enable"}, | |
272 | {"Mono 2 Enable", "Switch", "Mono Out 2"}, | |
273 | {"Mono Out 2", NULL, "Stereo Mixer"}, | |
274 | ||
275 | {"Voice ADC", NULL, "Mono 2 Enable"}, | |
276 | ||
277 | /* Aux In */ | |
278 | {"AUX In", NULL, "AUX"}, | |
279 | ||
280 | /* ADC */ | |
281 | {"ADC", NULL, "Input Mixer"}, | |
282 | {"Input Mixer", "Mic Capture Switch", "Mic"}, | |
283 | {"Input Mixer", "Aux Capture Switch", "AUX In"}, | |
284 | }; | |
285 | ||
286 | static int ak4641_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
287 | int clk_id, unsigned int freq, int dir) | |
288 | { | |
289 | struct snd_soc_codec *codec = codec_dai->codec; | |
290 | struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); | |
291 | ||
292 | ak4641->sysclk = freq; | |
293 | return 0; | |
294 | } | |
295 | ||
296 | static int ak4641_i2s_hw_params(struct snd_pcm_substream *substream, | |
297 | struct snd_pcm_hw_params *params, | |
298 | struct snd_soc_dai *dai) | |
299 | { | |
300 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
301 | struct snd_soc_codec *codec = rtd->codec; | |
302 | struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); | |
303 | int rate = params_rate(params), fs = 256; | |
304 | u8 mode2; | |
305 | ||
306 | if (rate) | |
307 | fs = ak4641->sysclk / rate; | |
308 | else | |
309 | return -EINVAL; | |
310 | ||
311 | /* set fs */ | |
312 | switch (fs) { | |
313 | case 1024: | |
314 | mode2 = (0x2 << 5); | |
315 | break; | |
316 | case 512: | |
317 | mode2 = (0x1 << 5); | |
318 | break; | |
319 | case 256: | |
320 | mode2 = (0x0 << 5); | |
321 | break; | |
322 | default: | |
323 | dev_err(codec->dev, "Error: unsupported fs=%d\n", fs); | |
324 | return -EINVAL; | |
325 | } | |
326 | ||
327 | snd_soc_update_bits(codec, AK4641_MODE2, (0x3 << 5), mode2); | |
328 | ||
329 | /* Update de-emphasis filter for the new rate */ | |
330 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
331 | ak4641->playback_fs = rate; | |
332 | ak4641_set_deemph(codec); | |
333 | }; | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
338 | static int ak4641_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
339 | unsigned int fmt) | |
340 | { | |
341 | struct snd_soc_codec *codec = codec_dai->codec; | |
342 | u8 btif; | |
343 | ||
344 | /* interface format */ | |
345 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
346 | case SND_SOC_DAIFMT_I2S: | |
347 | btif = (0x3 << 5); | |
348 | break; | |
349 | case SND_SOC_DAIFMT_LEFT_J: | |
350 | btif = (0x2 << 5); | |
351 | break; | |
352 | case SND_SOC_DAIFMT_DSP_A: /* MSB after FRM */ | |
353 | btif = (0x0 << 5); | |
354 | break; | |
355 | case SND_SOC_DAIFMT_DSP_B: /* MSB during FRM */ | |
356 | btif = (0x1 << 5); | |
357 | break; | |
358 | default: | |
359 | return -EINVAL; | |
360 | } | |
361 | ||
362 | return snd_soc_update_bits(codec, AK4641_BTIF, (0x3 << 5), btif); | |
363 | } | |
364 | ||
365 | static int ak4641_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
366 | unsigned int fmt) | |
367 | { | |
368 | struct snd_soc_codec *codec = codec_dai->codec; | |
369 | u8 mode1 = 0; | |
370 | ||
371 | /* interface format */ | |
372 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
373 | case SND_SOC_DAIFMT_I2S: | |
374 | mode1 = 0x02; | |
375 | break; | |
376 | case SND_SOC_DAIFMT_LEFT_J: | |
377 | mode1 = 0x01; | |
378 | break; | |
379 | default: | |
380 | return -EINVAL; | |
381 | } | |
382 | ||
383 | return snd_soc_write(codec, AK4641_MODE1, mode1); | |
384 | } | |
385 | ||
386 | static int ak4641_mute(struct snd_soc_dai *dai, int mute) | |
387 | { | |
388 | struct snd_soc_codec *codec = dai->codec; | |
389 | ||
390 | return snd_soc_update_bits(codec, AK4641_DAC, 0x20, mute ? 0x20 : 0); | |
391 | } | |
392 | ||
393 | static int ak4641_set_bias_level(struct snd_soc_codec *codec, | |
394 | enum snd_soc_bias_level level) | |
395 | { | |
396 | struct ak4641_platform_data *pdata = codec->dev->platform_data; | |
397 | int ret; | |
398 | ||
399 | switch (level) { | |
400 | case SND_SOC_BIAS_ON: | |
401 | /* unmute */ | |
402 | snd_soc_update_bits(codec, AK4641_DAC, 0x20, 0); | |
403 | break; | |
404 | case SND_SOC_BIAS_PREPARE: | |
405 | /* mute */ | |
406 | snd_soc_update_bits(codec, AK4641_DAC, 0x20, 0x20); | |
407 | break; | |
408 | case SND_SOC_BIAS_STANDBY: | |
409 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { | |
410 | if (pdata && gpio_is_valid(pdata->gpio_power)) | |
411 | gpio_set_value(pdata->gpio_power, 1); | |
412 | mdelay(1); | |
413 | if (pdata && gpio_is_valid(pdata->gpio_npdn)) | |
414 | gpio_set_value(pdata->gpio_npdn, 1); | |
415 | mdelay(1); | |
416 | ||
417 | ret = snd_soc_cache_sync(codec); | |
418 | if (ret) { | |
419 | dev_err(codec->dev, | |
420 | "Failed to sync cache: %d\n", ret); | |
421 | return ret; | |
422 | } | |
423 | } | |
424 | snd_soc_update_bits(codec, AK4641_PM1, 0x80, 0x80); | |
425 | snd_soc_update_bits(codec, AK4641_PM2, 0x80, 0); | |
426 | break; | |
427 | case SND_SOC_BIAS_OFF: | |
428 | snd_soc_update_bits(codec, AK4641_PM1, 0x80, 0); | |
429 | if (pdata && gpio_is_valid(pdata->gpio_npdn)) | |
430 | gpio_set_value(pdata->gpio_npdn, 0); | |
431 | if (pdata && gpio_is_valid(pdata->gpio_power)) | |
432 | gpio_set_value(pdata->gpio_power, 0); | |
433 | codec->cache_sync = 1; | |
434 | break; | |
435 | } | |
436 | codec->dapm.bias_level = level; | |
437 | return 0; | |
438 | } | |
439 | ||
440 | #define AK4641_RATES (SNDRV_PCM_RATE_8000_48000) | |
441 | #define AK4641_RATES_BT (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
442 | SNDRV_PCM_RATE_16000) | |
443 | #define AK4641_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) | |
444 | ||
445 | static struct snd_soc_dai_ops ak4641_i2s_dai_ops = { | |
446 | .hw_params = ak4641_i2s_hw_params, | |
447 | .set_fmt = ak4641_i2s_set_dai_fmt, | |
448 | .digital_mute = ak4641_mute, | |
449 | .set_sysclk = ak4641_set_dai_sysclk, | |
450 | }; | |
451 | ||
452 | static struct snd_soc_dai_ops ak4641_pcm_dai_ops = { | |
453 | .hw_params = NULL, /* rates are controlled by BT chip */ | |
454 | .set_fmt = ak4641_pcm_set_dai_fmt, | |
455 | .digital_mute = ak4641_mute, | |
456 | .set_sysclk = ak4641_set_dai_sysclk, | |
457 | }; | |
458 | ||
37aa716a | 459 | static struct snd_soc_dai_driver ak4641_dai[] = { |
00d27010 DA |
460 | { |
461 | .name = "ak4641-hifi", | |
462 | .id = 1, | |
463 | .playback = { | |
464 | .stream_name = "HiFi Playback", | |
465 | .channels_min = 1, | |
466 | .channels_max = 2, | |
467 | .rates = AK4641_RATES, | |
468 | .formats = AK4641_FORMATS, | |
469 | }, | |
470 | .capture = { | |
471 | .stream_name = "HiFi Capture", | |
472 | .channels_min = 1, | |
473 | .channels_max = 2, | |
474 | .rates = AK4641_RATES, | |
475 | .formats = AK4641_FORMATS, | |
476 | }, | |
477 | .ops = &ak4641_i2s_dai_ops, | |
478 | .symmetric_rates = 1, | |
479 | }, | |
480 | { | |
481 | .name = "ak4641-voice", | |
482 | .id = 1, | |
483 | .playback = { | |
484 | .stream_name = "Voice Playback", | |
485 | .channels_min = 1, | |
486 | .channels_max = 1, | |
487 | .rates = AK4641_RATES_BT, | |
488 | .formats = AK4641_FORMATS, | |
489 | }, | |
490 | .capture = { | |
491 | .stream_name = "Voice Capture", | |
492 | .channels_min = 1, | |
493 | .channels_max = 1, | |
494 | .rates = AK4641_RATES_BT, | |
495 | .formats = AK4641_FORMATS, | |
496 | }, | |
497 | .ops = &ak4641_pcm_dai_ops, | |
498 | .symmetric_rates = 1, | |
499 | }, | |
500 | }; | |
501 | ||
502 | static int ak4641_suspend(struct snd_soc_codec *codec, pm_message_t state) | |
503 | { | |
504 | ak4641_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
505 | return 0; | |
506 | } | |
507 | ||
508 | static int ak4641_resume(struct snd_soc_codec *codec) | |
509 | { | |
510 | ak4641_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
511 | return 0; | |
512 | } | |
513 | ||
514 | static int ak4641_probe(struct snd_soc_codec *codec) | |
515 | { | |
516 | struct ak4641_platform_data *pdata = codec->dev->platform_data; | |
517 | int ret; | |
518 | ||
519 | ||
520 | if (pdata) { | |
521 | if (gpio_is_valid(pdata->gpio_power)) { | |
522 | ret = gpio_request_one(pdata->gpio_power, | |
523 | GPIOF_OUT_INIT_LOW, "ak4641 power"); | |
524 | if (ret) | |
525 | goto err_out; | |
526 | } | |
527 | if (gpio_is_valid(pdata->gpio_npdn)) { | |
528 | ret = gpio_request_one(pdata->gpio_npdn, | |
529 | GPIOF_OUT_INIT_LOW, "ak4641 npdn"); | |
530 | if (ret) | |
531 | goto err_gpio; | |
532 | ||
533 | udelay(1); /* > 150 ns */ | |
534 | gpio_set_value(pdata->gpio_npdn, 1); | |
535 | } | |
536 | } | |
537 | ||
538 | ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C); | |
539 | if (ret != 0) { | |
540 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
541 | goto err_register; | |
542 | } | |
543 | ||
544 | /* power on device */ | |
545 | ak4641_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
546 | ||
547 | return 0; | |
548 | ||
549 | err_register: | |
550 | if (pdata) { | |
551 | if (gpio_is_valid(pdata->gpio_power)) | |
552 | gpio_set_value(pdata->gpio_power, 0); | |
553 | if (gpio_is_valid(pdata->gpio_npdn)) | |
554 | gpio_free(pdata->gpio_npdn); | |
555 | } | |
556 | err_gpio: | |
557 | if (pdata && gpio_is_valid(pdata->gpio_power)) | |
558 | gpio_free(pdata->gpio_power); | |
559 | err_out: | |
560 | return ret; | |
561 | } | |
562 | ||
563 | static int ak4641_remove(struct snd_soc_codec *codec) | |
564 | { | |
565 | struct ak4641_platform_data *pdata = codec->dev->platform_data; | |
566 | ||
567 | ak4641_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
568 | ||
569 | if (pdata) { | |
570 | if (gpio_is_valid(pdata->gpio_power)) { | |
571 | gpio_set_value(pdata->gpio_power, 0); | |
572 | gpio_free(pdata->gpio_power); | |
573 | } | |
574 | if (gpio_is_valid(pdata->gpio_npdn)) | |
575 | gpio_free(pdata->gpio_npdn); | |
576 | } | |
577 | return 0; | |
578 | } | |
579 | ||
580 | ||
581 | static struct snd_soc_codec_driver soc_codec_dev_ak4641 = { | |
582 | .probe = ak4641_probe, | |
583 | .remove = ak4641_remove, | |
584 | .suspend = ak4641_suspend, | |
585 | .resume = ak4641_resume, | |
586 | .controls = ak4641_snd_controls, | |
587 | .num_controls = ARRAY_SIZE(ak4641_snd_controls), | |
588 | .dapm_widgets = ak4641_dapm_widgets, | |
589 | .num_dapm_widgets = ARRAY_SIZE(ak4641_dapm_widgets), | |
590 | .dapm_routes = ak4641_audio_map, | |
591 | .num_dapm_routes = ARRAY_SIZE(ak4641_audio_map), | |
592 | .set_bias_level = ak4641_set_bias_level, | |
593 | .reg_cache_size = ARRAY_SIZE(ak4641_reg), | |
594 | .reg_word_size = sizeof(u8), | |
595 | .reg_cache_default = ak4641_reg, | |
596 | .reg_cache_step = 1, | |
597 | }; | |
598 | ||
599 | ||
600 | static int __devinit ak4641_i2c_probe(struct i2c_client *i2c, | |
601 | const struct i2c_device_id *id) | |
602 | { | |
603 | struct ak4641_priv *ak4641; | |
604 | int ret; | |
605 | ||
606 | ak4641 = kzalloc(sizeof(struct ak4641_priv), GFP_KERNEL); | |
607 | if (!ak4641) | |
608 | return -ENOMEM; | |
609 | ||
610 | i2c_set_clientdata(i2c, ak4641); | |
611 | ||
612 | ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_ak4641, | |
613 | ak4641_dai, ARRAY_SIZE(ak4641_dai)); | |
614 | if (ret < 0) | |
615 | kfree(ak4641); | |
616 | ||
617 | return ret; | |
618 | } | |
619 | ||
620 | static int __devexit ak4641_i2c_remove(struct i2c_client *i2c) | |
621 | { | |
622 | snd_soc_unregister_codec(&i2c->dev); | |
623 | kfree(i2c_get_clientdata(i2c)); | |
624 | return 0; | |
625 | } | |
626 | ||
627 | static const struct i2c_device_id ak4641_i2c_id[] = { | |
628 | { "ak4641", 0 }, | |
629 | { } | |
630 | }; | |
631 | MODULE_DEVICE_TABLE(i2c, ak4641_i2c_id); | |
632 | ||
633 | static struct i2c_driver ak4641_i2c_driver = { | |
634 | .driver = { | |
635 | .name = "ak4641", | |
636 | .owner = THIS_MODULE, | |
637 | }, | |
638 | .probe = ak4641_i2c_probe, | |
639 | .remove = __devexit_p(ak4641_i2c_remove), | |
640 | .id_table = ak4641_i2c_id, | |
641 | }; | |
642 | ||
643 | static int __init ak4641_modinit(void) | |
644 | { | |
645 | int ret; | |
646 | ||
647 | ret = i2c_add_driver(&ak4641_i2c_driver); | |
648 | if (ret != 0) | |
649 | pr_err("Failed to register AK4641 I2C driver: %d\n", ret); | |
650 | ||
651 | return ret; | |
652 | } | |
653 | module_init(ak4641_modinit); | |
654 | ||
655 | static void __exit ak4641_exit(void) | |
656 | { | |
657 | i2c_del_driver(&ak4641_i2c_driver); | |
658 | } | |
659 | module_exit(ak4641_exit); | |
660 | ||
661 | MODULE_DESCRIPTION("SoC AK4641 driver"); | |
662 | MODULE_AUTHOR("Harald Welte <laforge@gnufiish.org>"); | |
663 | MODULE_LICENSE("GPL"); |