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796d2ca8 RP |
1 | /* |
2 | * ak4535.c -- AK4535 ALSA Soc Audio driver | |
3 | * | |
4 | * Copyright 2005 Openedhand Ltd. | |
5 | * | |
6 | * Author: Richard Purdie <richard@openedhand.com> | |
7 | * | |
8 | * Based on wm8753.c by Liam Girdwood | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
16 | #include <linux/moduleparam.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/pm.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/platform_device.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/soc-dapm.h> | |
27 | #include <sound/initval.h> | |
28 | ||
29 | #include "ak4535.h" | |
30 | ||
796d2ca8 RP |
31 | #define AK4535_VERSION "0.3" |
32 | ||
33 | struct snd_soc_codec_device soc_codec_dev_ak4535; | |
34 | ||
35 | /* codec private data */ | |
36 | struct ak4535_priv { | |
37 | unsigned int sysclk; | |
38 | }; | |
39 | ||
40 | /* | |
41 | * ak4535 register cache | |
42 | */ | |
43 | static const u16 ak4535_reg[AK4535_CACHEREGNUM] = { | |
44 | 0x0000, 0x0080, 0x0000, 0x0003, | |
45 | 0x0002, 0x0000, 0x0011, 0x0001, | |
46 | 0x0000, 0x0040, 0x0036, 0x0010, | |
47 | 0x0000, 0x0000, 0x0057, 0x0000, | |
48 | }; | |
49 | ||
50 | /* | |
51 | * read ak4535 register cache | |
52 | */ | |
53 | static inline unsigned int ak4535_read_reg_cache(struct snd_soc_codec *codec, | |
54 | unsigned int reg) | |
55 | { | |
56 | u16 *cache = codec->reg_cache; | |
57 | if (reg >= AK4535_CACHEREGNUM) | |
58 | return -1; | |
59 | return cache[reg]; | |
60 | } | |
61 | ||
62 | static inline unsigned int ak4535_read(struct snd_soc_codec *codec, | |
63 | unsigned int reg) | |
64 | { | |
65 | u8 data; | |
66 | data = reg; | |
67 | ||
68 | if (codec->hw_write(codec->control_data, &data, 1) != 1) | |
69 | return -EIO; | |
70 | ||
71 | if (codec->hw_read(codec->control_data, &data, 1) != 1) | |
72 | return -EIO; | |
73 | ||
74 | return data; | |
75 | }; | |
76 | ||
77 | /* | |
78 | * write ak4535 register cache | |
79 | */ | |
80 | static inline void ak4535_write_reg_cache(struct snd_soc_codec *codec, | |
81 | u16 reg, unsigned int value) | |
82 | { | |
83 | u16 *cache = codec->reg_cache; | |
84 | if (reg >= AK4535_CACHEREGNUM) | |
85 | return; | |
86 | cache[reg] = value; | |
87 | } | |
88 | ||
89 | /* | |
90 | * write to the AK4535 register space | |
91 | */ | |
92 | static int ak4535_write(struct snd_soc_codec *codec, unsigned int reg, | |
93 | unsigned int value) | |
94 | { | |
95 | u8 data[2]; | |
96 | ||
97 | /* data is | |
98 | * D15..D8 AK4535 register offset | |
99 | * D7...D0 register data | |
100 | */ | |
101 | data[0] = reg & 0xff; | |
102 | data[1] = value & 0xff; | |
103 | ||
104 | ak4535_write_reg_cache(codec, reg, value); | |
105 | if (codec->hw_write(codec->control_data, data, 2) == 2) | |
106 | return 0; | |
107 | else | |
108 | return -EIO; | |
109 | } | |
110 | ||
111 | static int ak4535_sync(struct snd_soc_codec *codec) | |
112 | { | |
113 | u16 *cache = codec->reg_cache; | |
114 | int i, r = 0; | |
115 | ||
116 | for (i = 0; i < AK4535_CACHEREGNUM; i++) | |
117 | r |= ak4535_write(codec, i, cache[i]); | |
118 | ||
119 | return r; | |
120 | }; | |
121 | ||
122 | static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"}; | |
123 | static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"}; | |
124 | static const char *ak4535_hp_out[] = {"Stereo", "Mono"}; | |
125 | static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"}; | |
126 | static const char *ak4535_mic_select[] = {"Internal", "External"}; | |
127 | ||
128 | static const struct soc_enum ak4535_enum[] = { | |
129 | SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain), | |
130 | SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out), | |
131 | SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out), | |
132 | SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp), | |
133 | SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select), | |
134 | }; | |
135 | ||
136 | static const struct snd_kcontrol_new ak4535_snd_controls[] = { | |
137 | SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0), | |
138 | SOC_ENUM("Mono 1 Output", ak4535_enum[1]), | |
139 | SOC_ENUM("Mono 1 Gain", ak4535_enum[0]), | |
140 | SOC_ENUM("Headphone Output", ak4535_enum[2]), | |
141 | SOC_ENUM("Playback Deemphasis", ak4535_enum[3]), | |
142 | SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0), | |
143 | SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0), | |
144 | SOC_ENUM("Mic Select", ak4535_enum[4]), | |
145 | SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0), | |
146 | SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0), | |
147 | SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0), | |
148 | SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0), | |
149 | SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0), | |
150 | SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0), | |
151 | SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0), | |
152 | SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1), | |
153 | SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1), | |
154 | SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0), | |
155 | SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0), | |
156 | }; | |
157 | ||
158 | /* add non dapm controls */ | |
159 | static int ak4535_add_controls(struct snd_soc_codec *codec) | |
160 | { | |
161 | int err, i; | |
162 | ||
163 | for (i = 0; i < ARRAY_SIZE(ak4535_snd_controls); i++) { | |
164 | err = snd_ctl_add(codec->card, | |
165 | snd_soc_cnew(&ak4535_snd_controls[i], codec, NULL)); | |
166 | if (err < 0) | |
167 | return err; | |
168 | } | |
169 | ||
170 | return 0; | |
171 | } | |
172 | ||
173 | /* Mono 1 Mixer */ | |
174 | static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = { | |
175 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0), | |
176 | SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0), | |
177 | }; | |
178 | ||
179 | /* Stereo Mixer */ | |
180 | static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = { | |
181 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0), | |
182 | SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0), | |
183 | SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0), | |
184 | }; | |
185 | ||
186 | /* Input Mixer */ | |
187 | static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = { | |
188 | SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0), | |
189 | SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0), | |
190 | }; | |
191 | ||
192 | /* Input mux */ | |
193 | static const struct snd_kcontrol_new ak4535_input_mux_control = | |
194 | SOC_DAPM_ENUM("Input Select", ak4535_enum[4]); | |
195 | ||
196 | /* HP L switch */ | |
197 | static const struct snd_kcontrol_new ak4535_hpl_control = | |
198 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1); | |
199 | ||
200 | /* HP R switch */ | |
201 | static const struct snd_kcontrol_new ak4535_hpr_control = | |
202 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1); | |
203 | ||
204 | /* mono 2 switch */ | |
205 | static const struct snd_kcontrol_new ak4535_mono2_control = | |
206 | SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0); | |
207 | ||
208 | /* Line out switch */ | |
209 | static const struct snd_kcontrol_new ak4535_line_control = | |
210 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0); | |
211 | ||
212 | /* ak4535 dapm widgets */ | |
213 | static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = { | |
214 | SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0, | |
215 | &ak4535_stereo_mixer_controls[0], | |
216 | ARRAY_SIZE(ak4535_stereo_mixer_controls)), | |
217 | SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0, | |
218 | &ak4535_mono1_mixer_controls[0], | |
219 | ARRAY_SIZE(ak4535_mono1_mixer_controls)), | |
220 | SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, | |
221 | &ak4535_input_mixer_controls[0], | |
222 | ARRAY_SIZE(ak4535_input_mixer_controls)), | |
223 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, | |
224 | &ak4535_input_mux_control), | |
225 | SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0), | |
226 | SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0, | |
227 | &ak4535_mono2_control), | |
228 | /* speaker powersave bit */ | |
229 | SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0), | |
230 | SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0, | |
231 | &ak4535_line_control), | |
232 | SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0, | |
233 | &ak4535_hpl_control), | |
234 | SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0, | |
235 | &ak4535_hpr_control), | |
236 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
237 | SND_SOC_DAPM_OUTPUT("HPL"), | |
238 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
239 | SND_SOC_DAPM_OUTPUT("HPR"), | |
240 | SND_SOC_DAPM_OUTPUT("SPP"), | |
241 | SND_SOC_DAPM_OUTPUT("SPN"), | |
242 | SND_SOC_DAPM_OUTPUT("MOUT1"), | |
243 | SND_SOC_DAPM_OUTPUT("MOUT2"), | |
244 | SND_SOC_DAPM_OUTPUT("MICOUT"), | |
245 | SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0), | |
246 | SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0), | |
247 | SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0), | |
248 | SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0), | |
249 | SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0), | |
250 | SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0), | |
251 | SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0), | |
252 | SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0), | |
253 | ||
254 | SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0), | |
255 | SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0), | |
256 | SND_SOC_DAPM_INPUT("MICIN"), | |
257 | SND_SOC_DAPM_INPUT("MICEXT"), | |
258 | SND_SOC_DAPM_INPUT("AUX"), | |
259 | SND_SOC_DAPM_INPUT("MIN"), | |
260 | SND_SOC_DAPM_INPUT("AIN"), | |
261 | }; | |
262 | ||
263 | static const struct snd_soc_dapm_route audio_map[] = { | |
264 | /*stereo mixer */ | |
265 | {"Stereo Mixer", "Playback Switch", "DAC"}, | |
266 | {"Stereo Mixer", "Mic Sidetone Switch", "Mic"}, | |
267 | {"Stereo Mixer", "Aux Bypass Switch", "AUX In"}, | |
268 | ||
269 | /* mono1 mixer */ | |
270 | {"Mono1 Mixer", "Mic Sidetone Switch", "Mic"}, | |
271 | {"Mono1 Mixer", "Mono Playback Switch", "DAC"}, | |
272 | ||
273 | /* Mic */ | |
274 | {"Mic", NULL, "AIN"}, | |
275 | {"Input Mux", "Internal", "Mic Int Bias"}, | |
276 | {"Input Mux", "External", "Mic Ext Bias"}, | |
277 | {"Mic Int Bias", NULL, "MICIN"}, | |
278 | {"Mic Ext Bias", NULL, "MICEXT"}, | |
279 | {"MICOUT", NULL, "Input Mux"}, | |
280 | ||
281 | /* line out */ | |
282 | {"LOUT", NULL, "Line Out Enable"}, | |
283 | {"ROUT", NULL, "Line Out Enable"}, | |
284 | {"Line Out Enable", "Switch", "Line Out"}, | |
285 | {"Line Out", NULL, "Stereo Mixer"}, | |
286 | ||
287 | /* mono1 out */ | |
288 | {"MOUT1", NULL, "Mono Out"}, | |
289 | {"Mono Out", NULL, "Mono1 Mixer"}, | |
290 | ||
291 | /* left HP */ | |
292 | {"HPL", NULL, "Left HP Enable"}, | |
293 | {"Left HP Enable", "Switch", "HP L Amp"}, | |
294 | {"HP L Amp", NULL, "Stereo Mixer"}, | |
295 | ||
296 | /* right HP */ | |
297 | {"HPR", NULL, "Right HP Enable"}, | |
298 | {"Right HP Enable", "Switch", "HP R Amp"}, | |
299 | {"HP R Amp", NULL, "Stereo Mixer"}, | |
300 | ||
301 | /* speaker */ | |
302 | {"SPP", NULL, "Speaker Enable"}, | |
303 | {"SPN", NULL, "Speaker Enable"}, | |
304 | {"Speaker Enable", "Switch", "Spk Amp"}, | |
305 | {"Spk Amp", NULL, "MIN"}, | |
306 | ||
307 | /* mono 2 */ | |
308 | {"MOUT2", NULL, "Mono 2 Enable"}, | |
309 | {"Mono 2 Enable", "Switch", "Stereo Mixer"}, | |
310 | ||
311 | /* Aux In */ | |
312 | {"Aux In", NULL, "AUX"}, | |
313 | ||
314 | /* ADC */ | |
315 | {"ADC", NULL, "Input Mixer"}, | |
316 | {"Input Mixer", "Mic Capture Switch", "Mic"}, | |
317 | {"Input Mixer", "Aux Capture Switch", "Aux In"}, | |
318 | }; | |
319 | ||
320 | static int ak4535_add_widgets(struct snd_soc_codec *codec) | |
321 | { | |
322 | snd_soc_dapm_new_controls(codec, ak4535_dapm_widgets, | |
323 | ARRAY_SIZE(ak4535_dapm_widgets)); | |
324 | ||
325 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
326 | ||
327 | snd_soc_dapm_new_widgets(codec); | |
328 | return 0; | |
329 | } | |
330 | ||
e550e17f | 331 | static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
332 | int clk_id, unsigned int freq, int dir) |
333 | { | |
334 | struct snd_soc_codec *codec = codec_dai->codec; | |
335 | struct ak4535_priv *ak4535 = codec->private_data; | |
336 | ||
337 | ak4535->sysclk = freq; | |
338 | return 0; | |
339 | } | |
340 | ||
341 | static int ak4535_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
342 | struct snd_pcm_hw_params *params, |
343 | struct snd_soc_dai *dai) | |
796d2ca8 RP |
344 | { |
345 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
346 | struct snd_soc_device *socdev = rtd->socdev; | |
347 | struct snd_soc_codec *codec = socdev->codec; | |
348 | struct ak4535_priv *ak4535 = codec->private_data; | |
349 | u8 mode2 = ak4535_read_reg_cache(codec, AK4535_MODE2) & ~(0x3 << 5); | |
350 | int rate = params_rate(params), fs = 256; | |
351 | ||
352 | if (rate) | |
353 | fs = ak4535->sysclk / rate; | |
354 | ||
355 | /* set fs */ | |
356 | switch (fs) { | |
357 | case 1024: | |
358 | mode2 |= (0x2 << 5); | |
359 | break; | |
360 | case 512: | |
361 | mode2 |= (0x1 << 5); | |
362 | break; | |
363 | case 256: | |
364 | break; | |
365 | } | |
366 | ||
367 | /* set rate */ | |
368 | ak4535_write(codec, AK4535_MODE2, mode2); | |
369 | return 0; | |
370 | } | |
371 | ||
e550e17f | 372 | static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
373 | unsigned int fmt) |
374 | { | |
375 | struct snd_soc_codec *codec = codec_dai->codec; | |
376 | u8 mode1 = 0; | |
377 | ||
378 | /* interface format */ | |
379 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
380 | case SND_SOC_DAIFMT_I2S: | |
381 | mode1 = 0x0002; | |
382 | break; | |
383 | case SND_SOC_DAIFMT_LEFT_J: | |
384 | mode1 = 0x0001; | |
385 | break; | |
386 | default: | |
387 | return -EINVAL; | |
388 | } | |
389 | ||
390 | /* use 32 fs for BCLK to save power */ | |
391 | mode1 |= 0x4; | |
392 | ||
393 | ak4535_write(codec, AK4535_MODE1, mode1); | |
394 | return 0; | |
395 | } | |
396 | ||
e550e17f | 397 | static int ak4535_mute(struct snd_soc_dai *dai, int mute) |
796d2ca8 RP |
398 | { |
399 | struct snd_soc_codec *codec = dai->codec; | |
400 | u16 mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf; | |
401 | if (!mute) | |
402 | ak4535_write(codec, AK4535_DAC, mute_reg); | |
403 | else | |
404 | ak4535_write(codec, AK4535_DAC, mute_reg | 0x20); | |
405 | return 0; | |
406 | } | |
407 | ||
408 | static int ak4535_set_bias_level(struct snd_soc_codec *codec, | |
409 | enum snd_soc_bias_level level) | |
410 | { | |
411 | u16 i; | |
412 | ||
413 | switch (level) { | |
414 | case SND_SOC_BIAS_ON: | |
415 | ak4535_mute(codec->dai, 0); | |
416 | break; | |
417 | case SND_SOC_BIAS_PREPARE: | |
418 | ak4535_mute(codec->dai, 1); | |
419 | break; | |
420 | case SND_SOC_BIAS_STANDBY: | |
421 | i = ak4535_read_reg_cache(codec, AK4535_PM1); | |
422 | ak4535_write(codec, AK4535_PM1, i | 0x80); | |
423 | i = ak4535_read_reg_cache(codec, AK4535_PM2); | |
424 | ak4535_write(codec, AK4535_PM2, i & (~0x80)); | |
425 | break; | |
426 | case SND_SOC_BIAS_OFF: | |
427 | i = ak4535_read_reg_cache(codec, AK4535_PM1); | |
428 | ak4535_write(codec, AK4535_PM1, i & (~0x80)); | |
429 | break; | |
430 | } | |
431 | codec->bias_level = level; | |
432 | return 0; | |
433 | } | |
434 | ||
435 | #define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
436 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
437 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) | |
438 | ||
e550e17f | 439 | struct snd_soc_dai ak4535_dai = { |
796d2ca8 RP |
440 | .name = "AK4535", |
441 | .playback = { | |
442 | .stream_name = "Playback", | |
443 | .channels_min = 1, | |
444 | .channels_max = 2, | |
445 | .rates = AK4535_RATES, | |
446 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
447 | .capture = { | |
448 | .stream_name = "Capture", | |
449 | .channels_min = 1, | |
450 | .channels_max = 2, | |
451 | .rates = AK4535_RATES, | |
452 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
453 | .ops = { | |
454 | .hw_params = ak4535_hw_params, | |
796d2ca8 RP |
455 | .set_fmt = ak4535_set_dai_fmt, |
456 | .digital_mute = ak4535_mute, | |
457 | .set_sysclk = ak4535_set_dai_sysclk, | |
458 | }, | |
459 | }; | |
460 | EXPORT_SYMBOL_GPL(ak4535_dai); | |
461 | ||
462 | static int ak4535_suspend(struct platform_device *pdev, pm_message_t state) | |
463 | { | |
464 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
465 | struct snd_soc_codec *codec = socdev->codec; | |
466 | ||
467 | ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
468 | return 0; | |
469 | } | |
470 | ||
471 | static int ak4535_resume(struct platform_device *pdev) | |
472 | { | |
473 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
474 | struct snd_soc_codec *codec = socdev->codec; | |
475 | ak4535_sync(codec); | |
476 | ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
477 | ak4535_set_bias_level(codec, codec->suspend_bias_level); | |
478 | return 0; | |
479 | } | |
480 | ||
481 | /* | |
482 | * initialise the AK4535 driver | |
483 | * register the mixer and dsp interfaces with the kernel | |
484 | */ | |
485 | static int ak4535_init(struct snd_soc_device *socdev) | |
486 | { | |
487 | struct snd_soc_codec *codec = socdev->codec; | |
488 | int ret = 0; | |
489 | ||
490 | codec->name = "AK4535"; | |
491 | codec->owner = THIS_MODULE; | |
492 | codec->read = ak4535_read_reg_cache; | |
493 | codec->write = ak4535_write; | |
494 | codec->set_bias_level = ak4535_set_bias_level; | |
495 | codec->dai = &ak4535_dai; | |
496 | codec->num_dai = 1; | |
497 | codec->reg_cache_size = ARRAY_SIZE(ak4535_reg); | |
498 | codec->reg_cache = kmemdup(ak4535_reg, sizeof(ak4535_reg), GFP_KERNEL); | |
499 | ||
500 | if (codec->reg_cache == NULL) | |
501 | return -ENOMEM; | |
502 | ||
503 | /* register pcms */ | |
504 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
505 | if (ret < 0) { | |
506 | printk(KERN_ERR "ak4535: failed to create pcms\n"); | |
507 | goto pcm_err; | |
508 | } | |
509 | ||
510 | /* power on device */ | |
511 | ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
512 | ||
513 | ak4535_add_controls(codec); | |
514 | ak4535_add_widgets(codec); | |
968a6025 | 515 | ret = snd_soc_init_card(socdev); |
796d2ca8 RP |
516 | if (ret < 0) { |
517 | printk(KERN_ERR "ak4535: failed to register card\n"); | |
518 | goto card_err; | |
519 | } | |
520 | ||
521 | return ret; | |
522 | ||
523 | card_err: | |
524 | snd_soc_free_pcms(socdev); | |
525 | snd_soc_dapm_free(socdev); | |
526 | pcm_err: | |
527 | kfree(codec->reg_cache); | |
528 | ||
529 | return ret; | |
530 | } | |
531 | ||
532 | static struct snd_soc_device *ak4535_socdev; | |
533 | ||
534 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
535 | ||
d28d2713 JD |
536 | static int ak4535_i2c_probe(struct i2c_client *i2c, |
537 | const struct i2c_device_id *id) | |
796d2ca8 RP |
538 | { |
539 | struct snd_soc_device *socdev = ak4535_socdev; | |
796d2ca8 | 540 | struct snd_soc_codec *codec = socdev->codec; |
796d2ca8 RP |
541 | int ret; |
542 | ||
796d2ca8 RP |
543 | i2c_set_clientdata(i2c, codec); |
544 | codec->control_data = i2c; | |
545 | ||
796d2ca8 | 546 | ret = ak4535_init(socdev); |
d28d2713 | 547 | if (ret < 0) |
796d2ca8 | 548 | printk(KERN_ERR "failed to initialise AK4535\n"); |
796d2ca8 | 549 | |
796d2ca8 RP |
550 | return ret; |
551 | } | |
552 | ||
d28d2713 | 553 | static int ak4535_i2c_remove(struct i2c_client *client) |
796d2ca8 RP |
554 | { |
555 | struct snd_soc_codec *codec = i2c_get_clientdata(client); | |
796d2ca8 | 556 | kfree(codec->reg_cache); |
796d2ca8 RP |
557 | return 0; |
558 | } | |
559 | ||
d28d2713 JD |
560 | static const struct i2c_device_id ak4535_i2c_id[] = { |
561 | { "ak4535", 0 }, | |
562 | { } | |
563 | }; | |
564 | MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id); | |
796d2ca8 | 565 | |
796d2ca8 RP |
566 | static struct i2c_driver ak4535_i2c_driver = { |
567 | .driver = { | |
568 | .name = "AK4535 I2C Codec", | |
569 | .owner = THIS_MODULE, | |
570 | }, | |
d28d2713 JD |
571 | .probe = ak4535_i2c_probe, |
572 | .remove = ak4535_i2c_remove, | |
573 | .id_table = ak4535_i2c_id, | |
796d2ca8 RP |
574 | }; |
575 | ||
d28d2713 JD |
576 | static int ak4535_add_i2c_device(struct platform_device *pdev, |
577 | const struct ak4535_setup_data *setup) | |
578 | { | |
579 | struct i2c_board_info info; | |
580 | struct i2c_adapter *adapter; | |
581 | struct i2c_client *client; | |
582 | int ret; | |
583 | ||
584 | ret = i2c_add_driver(&ak4535_i2c_driver); | |
585 | if (ret != 0) { | |
586 | dev_err(&pdev->dev, "can't add i2c driver\n"); | |
587 | return ret; | |
588 | } | |
589 | ||
590 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
591 | info.addr = setup->i2c_address; | |
592 | strlcpy(info.type, "ak4535", I2C_NAME_SIZE); | |
593 | ||
594 | adapter = i2c_get_adapter(setup->i2c_bus); | |
595 | if (!adapter) { | |
596 | dev_err(&pdev->dev, "can't get i2c adapter %d\n", | |
597 | setup->i2c_bus); | |
598 | goto err_driver; | |
599 | } | |
600 | ||
601 | client = i2c_new_device(adapter, &info); | |
602 | i2c_put_adapter(adapter); | |
603 | if (!client) { | |
604 | dev_err(&pdev->dev, "can't add i2c device at 0x%x\n", | |
605 | (unsigned int)info.addr); | |
606 | goto err_driver; | |
607 | } | |
608 | ||
609 | return 0; | |
610 | ||
611 | err_driver: | |
612 | i2c_del_driver(&ak4535_i2c_driver); | |
613 | return -ENODEV; | |
614 | } | |
796d2ca8 RP |
615 | #endif |
616 | ||
617 | static int ak4535_probe(struct platform_device *pdev) | |
618 | { | |
619 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
620 | struct ak4535_setup_data *setup; | |
621 | struct snd_soc_codec *codec; | |
622 | struct ak4535_priv *ak4535; | |
b7c9d852 | 623 | int ret; |
796d2ca8 RP |
624 | |
625 | printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION); | |
626 | ||
627 | setup = socdev->codec_data; | |
628 | codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); | |
629 | if (codec == NULL) | |
630 | return -ENOMEM; | |
631 | ||
632 | ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL); | |
633 | if (ak4535 == NULL) { | |
634 | kfree(codec); | |
635 | return -ENOMEM; | |
636 | } | |
637 | ||
638 | codec->private_data = ak4535; | |
639 | socdev->codec = codec; | |
640 | mutex_init(&codec->mutex); | |
641 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
642 | INIT_LIST_HEAD(&codec->dapm_paths); | |
643 | ||
644 | ak4535_socdev = socdev; | |
b7c9d852 MB |
645 | ret = -ENODEV; |
646 | ||
796d2ca8 RP |
647 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
648 | if (setup->i2c_address) { | |
796d2ca8 RP |
649 | codec->hw_write = (hw_write_t)i2c_master_send; |
650 | codec->hw_read = (hw_read_t)i2c_master_recv; | |
d28d2713 | 651 | ret = ak4535_add_i2c_device(pdev, setup); |
796d2ca8 | 652 | } |
796d2ca8 | 653 | #endif |
3051e41a JD |
654 | |
655 | if (ret != 0) { | |
656 | kfree(codec->private_data); | |
657 | kfree(codec); | |
658 | } | |
796d2ca8 RP |
659 | return ret; |
660 | } | |
661 | ||
662 | /* power down chip */ | |
663 | static int ak4535_remove(struct platform_device *pdev) | |
664 | { | |
665 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
666 | struct snd_soc_codec *codec = socdev->codec; | |
667 | ||
668 | if (codec->control_data) | |
669 | ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
670 | ||
671 | snd_soc_free_pcms(socdev); | |
672 | snd_soc_dapm_free(socdev); | |
673 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
d28d2713 | 674 | i2c_unregister_device(codec->control_data); |
796d2ca8 RP |
675 | i2c_del_driver(&ak4535_i2c_driver); |
676 | #endif | |
677 | kfree(codec->private_data); | |
678 | kfree(codec); | |
679 | ||
680 | return 0; | |
681 | } | |
682 | ||
683 | struct snd_soc_codec_device soc_codec_dev_ak4535 = { | |
684 | .probe = ak4535_probe, | |
685 | .remove = ak4535_remove, | |
686 | .suspend = ak4535_suspend, | |
687 | .resume = ak4535_resume, | |
688 | }; | |
689 | EXPORT_SYMBOL_GPL(soc_codec_dev_ak4535); | |
690 | ||
64089b84 MB |
691 | static int __devinit ak4535_modinit(void) |
692 | { | |
693 | return snd_soc_register_dai(&ak4535_dai); | |
694 | } | |
695 | module_init(ak4535_modinit); | |
696 | ||
697 | static void __exit ak4535_exit(void) | |
698 | { | |
699 | snd_soc_unregister_dai(&ak4535_dai); | |
700 | } | |
701 | module_exit(ak4535_exit); | |
702 | ||
796d2ca8 RP |
703 | MODULE_DESCRIPTION("Soc AK4535 driver"); |
704 | MODULE_AUTHOR("Richard Purdie"); | |
705 | MODULE_LICENSE("GPL"); |