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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> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
796d2ca8 RP |
22 | #include <sound/core.h> |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
796d2ca8 RP |
26 | #include <sound/initval.h> |
27 | ||
28 | #include "ak4535.h" | |
29 | ||
796d2ca8 RP |
30 | #define AK4535_VERSION "0.3" |
31 | ||
796d2ca8 RP |
32 | /* codec private data */ |
33 | struct ak4535_priv { | |
34 | unsigned int sysclk; | |
f0fba2ad | 35 | enum snd_soc_control_type control_type; |
796d2ca8 RP |
36 | }; |
37 | ||
38 | /* | |
39 | * ak4535 register cache | |
40 | */ | |
7c04241a AL |
41 | static const u8 ak4535_reg[AK4535_CACHEREGNUM] = { |
42 | 0x00, 0x80, 0x00, 0x03, | |
43 | 0x02, 0x00, 0x11, 0x01, | |
44 | 0x00, 0x40, 0x36, 0x10, | |
45 | 0x00, 0x00, 0x57, 0x00, | |
796d2ca8 RP |
46 | }; |
47 | ||
796d2ca8 RP |
48 | static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"}; |
49 | static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"}; | |
50 | static const char *ak4535_hp_out[] = {"Stereo", "Mono"}; | |
51 | static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"}; | |
52 | static const char *ak4535_mic_select[] = {"Internal", "External"}; | |
53 | ||
54 | static const struct soc_enum ak4535_enum[] = { | |
55 | SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain), | |
56 | SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out), | |
57 | SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out), | |
58 | SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp), | |
59 | SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select), | |
60 | }; | |
61 | ||
62 | static const struct snd_kcontrol_new ak4535_snd_controls[] = { | |
63 | SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0), | |
64 | SOC_ENUM("Mono 1 Output", ak4535_enum[1]), | |
65 | SOC_ENUM("Mono 1 Gain", ak4535_enum[0]), | |
66 | SOC_ENUM("Headphone Output", ak4535_enum[2]), | |
67 | SOC_ENUM("Playback Deemphasis", ak4535_enum[3]), | |
68 | SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0), | |
69 | SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0), | |
70 | SOC_ENUM("Mic Select", ak4535_enum[4]), | |
71 | SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0), | |
72 | SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0), | |
73 | SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0), | |
74 | SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0), | |
75 | SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0), | |
76 | SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0), | |
77 | SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0), | |
78 | SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1), | |
79 | SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1), | |
80 | SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0), | |
81 | SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0), | |
82 | }; | |
83 | ||
796d2ca8 RP |
84 | /* Mono 1 Mixer */ |
85 | static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = { | |
86 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0), | |
87 | SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0), | |
88 | }; | |
89 | ||
90 | /* Stereo Mixer */ | |
91 | static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = { | |
92 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0), | |
93 | SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0), | |
94 | SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0), | |
95 | }; | |
96 | ||
97 | /* Input Mixer */ | |
98 | static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = { | |
99 | SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0), | |
100 | SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0), | |
101 | }; | |
102 | ||
103 | /* Input mux */ | |
104 | static const struct snd_kcontrol_new ak4535_input_mux_control = | |
105 | SOC_DAPM_ENUM("Input Select", ak4535_enum[4]); | |
106 | ||
107 | /* HP L switch */ | |
108 | static const struct snd_kcontrol_new ak4535_hpl_control = | |
109 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1); | |
110 | ||
111 | /* HP R switch */ | |
112 | static const struct snd_kcontrol_new ak4535_hpr_control = | |
113 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1); | |
114 | ||
115 | /* mono 2 switch */ | |
116 | static const struct snd_kcontrol_new ak4535_mono2_control = | |
117 | SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0); | |
118 | ||
119 | /* Line out switch */ | |
120 | static const struct snd_kcontrol_new ak4535_line_control = | |
121 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0); | |
122 | ||
123 | /* ak4535 dapm widgets */ | |
124 | static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = { | |
125 | SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0, | |
126 | &ak4535_stereo_mixer_controls[0], | |
127 | ARRAY_SIZE(ak4535_stereo_mixer_controls)), | |
128 | SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0, | |
129 | &ak4535_mono1_mixer_controls[0], | |
130 | ARRAY_SIZE(ak4535_mono1_mixer_controls)), | |
131 | SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, | |
132 | &ak4535_input_mixer_controls[0], | |
133 | ARRAY_SIZE(ak4535_input_mixer_controls)), | |
134 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, | |
135 | &ak4535_input_mux_control), | |
136 | SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0), | |
137 | SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0, | |
138 | &ak4535_mono2_control), | |
139 | /* speaker powersave bit */ | |
140 | SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0), | |
141 | SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0, | |
142 | &ak4535_line_control), | |
143 | SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0, | |
144 | &ak4535_hpl_control), | |
145 | SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0, | |
146 | &ak4535_hpr_control), | |
147 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
148 | SND_SOC_DAPM_OUTPUT("HPL"), | |
149 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
150 | SND_SOC_DAPM_OUTPUT("HPR"), | |
151 | SND_SOC_DAPM_OUTPUT("SPP"), | |
152 | SND_SOC_DAPM_OUTPUT("SPN"), | |
153 | SND_SOC_DAPM_OUTPUT("MOUT1"), | |
154 | SND_SOC_DAPM_OUTPUT("MOUT2"), | |
155 | SND_SOC_DAPM_OUTPUT("MICOUT"), | |
156 | SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0), | |
157 | SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0), | |
158 | SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0), | |
159 | SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0), | |
160 | SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0), | |
161 | SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0), | |
162 | SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0), | |
163 | SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0), | |
164 | ||
165 | SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0), | |
166 | SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0), | |
167 | SND_SOC_DAPM_INPUT("MICIN"), | |
168 | SND_SOC_DAPM_INPUT("MICEXT"), | |
169 | SND_SOC_DAPM_INPUT("AUX"), | |
170 | SND_SOC_DAPM_INPUT("MIN"), | |
171 | SND_SOC_DAPM_INPUT("AIN"), | |
172 | }; | |
173 | ||
b63c963d | 174 | static const struct snd_soc_dapm_route ak4535_audio_map[] = { |
796d2ca8 RP |
175 | /*stereo mixer */ |
176 | {"Stereo Mixer", "Playback Switch", "DAC"}, | |
177 | {"Stereo Mixer", "Mic Sidetone Switch", "Mic"}, | |
178 | {"Stereo Mixer", "Aux Bypass Switch", "AUX In"}, | |
179 | ||
180 | /* mono1 mixer */ | |
181 | {"Mono1 Mixer", "Mic Sidetone Switch", "Mic"}, | |
182 | {"Mono1 Mixer", "Mono Playback Switch", "DAC"}, | |
183 | ||
184 | /* Mic */ | |
185 | {"Mic", NULL, "AIN"}, | |
186 | {"Input Mux", "Internal", "Mic Int Bias"}, | |
187 | {"Input Mux", "External", "Mic Ext Bias"}, | |
188 | {"Mic Int Bias", NULL, "MICIN"}, | |
189 | {"Mic Ext Bias", NULL, "MICEXT"}, | |
190 | {"MICOUT", NULL, "Input Mux"}, | |
191 | ||
192 | /* line out */ | |
193 | {"LOUT", NULL, "Line Out Enable"}, | |
194 | {"ROUT", NULL, "Line Out Enable"}, | |
195 | {"Line Out Enable", "Switch", "Line Out"}, | |
196 | {"Line Out", NULL, "Stereo Mixer"}, | |
197 | ||
198 | /* mono1 out */ | |
199 | {"MOUT1", NULL, "Mono Out"}, | |
200 | {"Mono Out", NULL, "Mono1 Mixer"}, | |
201 | ||
202 | /* left HP */ | |
203 | {"HPL", NULL, "Left HP Enable"}, | |
204 | {"Left HP Enable", "Switch", "HP L Amp"}, | |
205 | {"HP L Amp", NULL, "Stereo Mixer"}, | |
206 | ||
207 | /* right HP */ | |
208 | {"HPR", NULL, "Right HP Enable"}, | |
209 | {"Right HP Enable", "Switch", "HP R Amp"}, | |
210 | {"HP R Amp", NULL, "Stereo Mixer"}, | |
211 | ||
212 | /* speaker */ | |
213 | {"SPP", NULL, "Speaker Enable"}, | |
214 | {"SPN", NULL, "Speaker Enable"}, | |
215 | {"Speaker Enable", "Switch", "Spk Amp"}, | |
216 | {"Spk Amp", NULL, "MIN"}, | |
217 | ||
218 | /* mono 2 */ | |
219 | {"MOUT2", NULL, "Mono 2 Enable"}, | |
220 | {"Mono 2 Enable", "Switch", "Stereo Mixer"}, | |
221 | ||
222 | /* Aux In */ | |
223 | {"Aux In", NULL, "AUX"}, | |
224 | ||
225 | /* ADC */ | |
226 | {"ADC", NULL, "Input Mixer"}, | |
227 | {"Input Mixer", "Mic Capture Switch", "Mic"}, | |
228 | {"Input Mixer", "Aux Capture Switch", "Aux In"}, | |
229 | }; | |
230 | ||
e550e17f | 231 | static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
232 | int clk_id, unsigned int freq, int dir) |
233 | { | |
234 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 235 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
796d2ca8 RP |
236 | |
237 | ak4535->sysclk = freq; | |
238 | return 0; | |
239 | } | |
240 | ||
241 | static int ak4535_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
242 | struct snd_pcm_hw_params *params, |
243 | struct snd_soc_dai *dai) | |
796d2ca8 RP |
244 | { |
245 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 246 | struct snd_soc_codec *codec = rtd->codec; |
b2c812e2 | 247 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
3b184503 | 248 | u8 mode2 = snd_soc_read(codec, AK4535_MODE2) & ~(0x3 << 5); |
796d2ca8 RP |
249 | int rate = params_rate(params), fs = 256; |
250 | ||
251 | if (rate) | |
252 | fs = ak4535->sysclk / rate; | |
253 | ||
254 | /* set fs */ | |
255 | switch (fs) { | |
256 | case 1024: | |
257 | mode2 |= (0x2 << 5); | |
258 | break; | |
259 | case 512: | |
260 | mode2 |= (0x1 << 5); | |
261 | break; | |
262 | case 256: | |
263 | break; | |
264 | } | |
265 | ||
266 | /* set rate */ | |
3b184503 | 267 | snd_soc_write(codec, AK4535_MODE2, mode2); |
796d2ca8 RP |
268 | return 0; |
269 | } | |
270 | ||
e550e17f | 271 | static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
272 | unsigned int fmt) |
273 | { | |
274 | struct snd_soc_codec *codec = codec_dai->codec; | |
275 | u8 mode1 = 0; | |
276 | ||
277 | /* interface format */ | |
278 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
279 | case SND_SOC_DAIFMT_I2S: | |
280 | mode1 = 0x0002; | |
281 | break; | |
282 | case SND_SOC_DAIFMT_LEFT_J: | |
283 | mode1 = 0x0001; | |
284 | break; | |
285 | default: | |
286 | return -EINVAL; | |
287 | } | |
288 | ||
289 | /* use 32 fs for BCLK to save power */ | |
290 | mode1 |= 0x4; | |
291 | ||
3b184503 | 292 | snd_soc_write(codec, AK4535_MODE1, mode1); |
796d2ca8 RP |
293 | return 0; |
294 | } | |
295 | ||
e550e17f | 296 | static int ak4535_mute(struct snd_soc_dai *dai, int mute) |
796d2ca8 RP |
297 | { |
298 | struct snd_soc_codec *codec = dai->codec; | |
3b184503 | 299 | u16 mute_reg = snd_soc_read(codec, AK4535_DAC); |
796d2ca8 | 300 | if (!mute) |
3b184503 | 301 | snd_soc_write(codec, AK4535_DAC, mute_reg & ~0x20); |
796d2ca8 | 302 | else |
3b184503 | 303 | snd_soc_write(codec, AK4535_DAC, mute_reg | 0x20); |
796d2ca8 RP |
304 | return 0; |
305 | } | |
306 | ||
307 | static int ak4535_set_bias_level(struct snd_soc_codec *codec, | |
308 | enum snd_soc_bias_level level) | |
309 | { | |
796d2ca8 RP |
310 | switch (level) { |
311 | case SND_SOC_BIAS_ON: | |
3b184503 | 312 | snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0); |
796d2ca8 RP |
313 | break; |
314 | case SND_SOC_BIAS_PREPARE: | |
3b184503 | 315 | snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0x20); |
796d2ca8 RP |
316 | break; |
317 | case SND_SOC_BIAS_STANDBY: | |
3b184503 AL |
318 | snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0x80); |
319 | snd_soc_update_bits(codec, AK4535_PM2, 0x80, 0); | |
796d2ca8 RP |
320 | break; |
321 | case SND_SOC_BIAS_OFF: | |
3b184503 | 322 | snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0); |
796d2ca8 RP |
323 | break; |
324 | } | |
ce6120cc | 325 | codec->dapm.bias_level = level; |
796d2ca8 RP |
326 | return 0; |
327 | } | |
328 | ||
329 | #define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
330 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
331 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) | |
332 | ||
85e7652d | 333 | static const struct snd_soc_dai_ops ak4535_dai_ops = { |
6335d055 EM |
334 | .hw_params = ak4535_hw_params, |
335 | .set_fmt = ak4535_set_dai_fmt, | |
336 | .digital_mute = ak4535_mute, | |
337 | .set_sysclk = ak4535_set_dai_sysclk, | |
338 | }; | |
339 | ||
f0fba2ad LG |
340 | static struct snd_soc_dai_driver ak4535_dai = { |
341 | .name = "ak4535-hifi", | |
796d2ca8 RP |
342 | .playback = { |
343 | .stream_name = "Playback", | |
344 | .channels_min = 1, | |
345 | .channels_max = 2, | |
346 | .rates = AK4535_RATES, | |
347 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
348 | .capture = { | |
349 | .stream_name = "Capture", | |
350 | .channels_min = 1, | |
351 | .channels_max = 2, | |
352 | .rates = AK4535_RATES, | |
353 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
6335d055 | 354 | .ops = &ak4535_dai_ops, |
796d2ca8 | 355 | }; |
796d2ca8 | 356 | |
84b315ee | 357 | static int ak4535_suspend(struct snd_soc_codec *codec) |
796d2ca8 | 358 | { |
796d2ca8 RP |
359 | ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); |
360 | return 0; | |
361 | } | |
362 | ||
f0fba2ad | 363 | static int ak4535_resume(struct snd_soc_codec *codec) |
796d2ca8 | 364 | { |
3b184503 | 365 | snd_soc_cache_sync(codec); |
796d2ca8 | 366 | ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
796d2ca8 RP |
367 | return 0; |
368 | } | |
369 | ||
f0fba2ad | 370 | static int ak4535_probe(struct snd_soc_codec *codec) |
796d2ca8 | 371 | { |
f0fba2ad | 372 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
3b184503 | 373 | int ret; |
796d2ca8 | 374 | |
f0fba2ad | 375 | printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION); |
796d2ca8 | 376 | |
3b184503 AL |
377 | ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4535->control_type); |
378 | if (ret < 0) { | |
379 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
380 | return ret; | |
381 | } | |
796d2ca8 RP |
382 | /* power on device */ |
383 | ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
384 | ||
022658be | 385 | snd_soc_add_codec_controls(codec, ak4535_snd_controls, |
3e8e1952 | 386 | ARRAY_SIZE(ak4535_snd_controls)); |
f0fba2ad LG |
387 | return 0; |
388 | } | |
796d2ca8 | 389 | |
f0fba2ad LG |
390 | /* power down chip */ |
391 | static int ak4535_remove(struct snd_soc_codec *codec) | |
392 | { | |
393 | ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
394 | return 0; | |
796d2ca8 RP |
395 | } |
396 | ||
f0fba2ad LG |
397 | static struct snd_soc_codec_driver soc_codec_dev_ak4535 = { |
398 | .probe = ak4535_probe, | |
399 | .remove = ak4535_remove, | |
400 | .suspend = ak4535_suspend, | |
401 | .resume = ak4535_resume, | |
f0fba2ad LG |
402 | .set_bias_level = ak4535_set_bias_level, |
403 | .reg_cache_size = ARRAY_SIZE(ak4535_reg), | |
404 | .reg_word_size = sizeof(u8), | |
405 | .reg_cache_default = ak4535_reg, | |
b63c963d LG |
406 | .dapm_widgets = ak4535_dapm_widgets, |
407 | .num_dapm_widgets = ARRAY_SIZE(ak4535_dapm_widgets), | |
408 | .dapm_routes = ak4535_audio_map, | |
409 | .num_dapm_routes = ARRAY_SIZE(ak4535_audio_map), | |
f0fba2ad | 410 | }; |
796d2ca8 RP |
411 | |
412 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
f0fba2ad LG |
413 | static __devinit int ak4535_i2c_probe(struct i2c_client *i2c, |
414 | const struct i2c_device_id *id) | |
796d2ca8 | 415 | { |
f0fba2ad | 416 | struct ak4535_priv *ak4535; |
796d2ca8 RP |
417 | int ret; |
418 | ||
7246492d AL |
419 | ak4535 = devm_kzalloc(&i2c->dev, sizeof(struct ak4535_priv), |
420 | GFP_KERNEL); | |
f0fba2ad LG |
421 | if (ak4535 == NULL) |
422 | return -ENOMEM; | |
796d2ca8 | 423 | |
f0fba2ad | 424 | i2c_set_clientdata(i2c, ak4535); |
f0fba2ad | 425 | ak4535->control_type = SND_SOC_I2C; |
796d2ca8 | 426 | |
f0fba2ad LG |
427 | ret = snd_soc_register_codec(&i2c->dev, |
428 | &soc_codec_dev_ak4535, &ak4535_dai, 1); | |
796d2ca8 RP |
429 | return ret; |
430 | } | |
431 | ||
f0fba2ad | 432 | static __devexit int ak4535_i2c_remove(struct i2c_client *client) |
796d2ca8 | 433 | { |
f0fba2ad | 434 | snd_soc_unregister_codec(&client->dev); |
796d2ca8 RP |
435 | return 0; |
436 | } | |
437 | ||
d28d2713 JD |
438 | static const struct i2c_device_id ak4535_i2c_id[] = { |
439 | { "ak4535", 0 }, | |
440 | { } | |
441 | }; | |
442 | MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id); | |
796d2ca8 | 443 | |
796d2ca8 RP |
444 | static struct i2c_driver ak4535_i2c_driver = { |
445 | .driver = { | |
f0fba2ad | 446 | .name = "ak4535-codec", |
796d2ca8 RP |
447 | .owner = THIS_MODULE, |
448 | }, | |
d28d2713 | 449 | .probe = ak4535_i2c_probe, |
f0fba2ad | 450 | .remove = __devexit_p(ak4535_i2c_remove), |
d28d2713 | 451 | .id_table = ak4535_i2c_id, |
796d2ca8 | 452 | }; |
796d2ca8 RP |
453 | #endif |
454 | ||
f0fba2ad | 455 | static int __init ak4535_modinit(void) |
796d2ca8 | 456 | { |
f0fba2ad | 457 | int ret = 0; |
796d2ca8 | 458 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
f0fba2ad | 459 | ret = i2c_add_driver(&ak4535_i2c_driver); |
3051e41a | 460 | if (ret != 0) { |
f0fba2ad LG |
461 | printk(KERN_ERR "Failed to register AK4535 I2C driver: %d\n", |
462 | ret); | |
3051e41a | 463 | } |
f0fba2ad | 464 | #endif |
796d2ca8 RP |
465 | return ret; |
466 | } | |
f0fba2ad | 467 | module_init(ak4535_modinit); |
796d2ca8 | 468 | |
f0fba2ad | 469 | static void __exit ak4535_exit(void) |
796d2ca8 | 470 | { |
796d2ca8 RP |
471 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
472 | i2c_del_driver(&ak4535_i2c_driver); | |
473 | #endif | |
64089b84 MB |
474 | } |
475 | module_exit(ak4535_exit); | |
476 | ||
796d2ca8 RP |
477 | MODULE_DESCRIPTION("Soc AK4535 driver"); |
478 | MODULE_AUTHOR("Richard Purdie"); | |
479 | MODULE_LICENSE("GPL"); |