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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> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
796d2ca8 RP |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/pcm_params.h> | |
26 | #include <sound/soc.h> | |
796d2ca8 RP |
27 | #include <sound/initval.h> |
28 | ||
29 | #include "ak4535.h" | |
30 | ||
796d2ca8 RP |
31 | #define AK4535_VERSION "0.3" |
32 | ||
796d2ca8 RP |
33 | /* codec private data */ |
34 | struct ak4535_priv { | |
35 | unsigned int sysclk; | |
f0fba2ad | 36 | enum snd_soc_control_type control_type; |
796d2ca8 RP |
37 | }; |
38 | ||
39 | /* | |
40 | * ak4535 register cache | |
41 | */ | |
7c04241a AL |
42 | static const u8 ak4535_reg[AK4535_CACHEREGNUM] = { |
43 | 0x00, 0x80, 0x00, 0x03, | |
44 | 0x02, 0x00, 0x11, 0x01, | |
45 | 0x00, 0x40, 0x36, 0x10, | |
46 | 0x00, 0x00, 0x57, 0x00, | |
796d2ca8 RP |
47 | }; |
48 | ||
796d2ca8 RP |
49 | static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"}; |
50 | static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"}; | |
51 | static const char *ak4535_hp_out[] = {"Stereo", "Mono"}; | |
52 | static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"}; | |
53 | static const char *ak4535_mic_select[] = {"Internal", "External"}; | |
54 | ||
55 | static const struct soc_enum ak4535_enum[] = { | |
56 | SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain), | |
57 | SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out), | |
58 | SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out), | |
59 | SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp), | |
60 | SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select), | |
61 | }; | |
62 | ||
63 | static const struct snd_kcontrol_new ak4535_snd_controls[] = { | |
64 | SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0), | |
65 | SOC_ENUM("Mono 1 Output", ak4535_enum[1]), | |
66 | SOC_ENUM("Mono 1 Gain", ak4535_enum[0]), | |
67 | SOC_ENUM("Headphone Output", ak4535_enum[2]), | |
68 | SOC_ENUM("Playback Deemphasis", ak4535_enum[3]), | |
69 | SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0), | |
70 | SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0), | |
71 | SOC_ENUM("Mic Select", ak4535_enum[4]), | |
72 | SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0), | |
73 | SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0), | |
74 | SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0), | |
75 | SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0), | |
76 | SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0), | |
77 | SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0), | |
78 | SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0), | |
79 | SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1), | |
80 | SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1), | |
81 | SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0), | |
82 | SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0), | |
83 | }; | |
84 | ||
796d2ca8 RP |
85 | /* Mono 1 Mixer */ |
86 | static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = { | |
87 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0), | |
88 | SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0), | |
89 | }; | |
90 | ||
91 | /* Stereo Mixer */ | |
92 | static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = { | |
93 | SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0), | |
94 | SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0), | |
95 | SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0), | |
96 | }; | |
97 | ||
98 | /* Input Mixer */ | |
99 | static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = { | |
100 | SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0), | |
101 | SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0), | |
102 | }; | |
103 | ||
104 | /* Input mux */ | |
105 | static const struct snd_kcontrol_new ak4535_input_mux_control = | |
106 | SOC_DAPM_ENUM("Input Select", ak4535_enum[4]); | |
107 | ||
108 | /* HP L switch */ | |
109 | static const struct snd_kcontrol_new ak4535_hpl_control = | |
110 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1); | |
111 | ||
112 | /* HP R switch */ | |
113 | static const struct snd_kcontrol_new ak4535_hpr_control = | |
114 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1); | |
115 | ||
116 | /* mono 2 switch */ | |
117 | static const struct snd_kcontrol_new ak4535_mono2_control = | |
118 | SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0); | |
119 | ||
120 | /* Line out switch */ | |
121 | static const struct snd_kcontrol_new ak4535_line_control = | |
122 | SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0); | |
123 | ||
124 | /* ak4535 dapm widgets */ | |
125 | static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = { | |
126 | SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0, | |
127 | &ak4535_stereo_mixer_controls[0], | |
128 | ARRAY_SIZE(ak4535_stereo_mixer_controls)), | |
129 | SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0, | |
130 | &ak4535_mono1_mixer_controls[0], | |
131 | ARRAY_SIZE(ak4535_mono1_mixer_controls)), | |
132 | SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, | |
133 | &ak4535_input_mixer_controls[0], | |
134 | ARRAY_SIZE(ak4535_input_mixer_controls)), | |
135 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, | |
136 | &ak4535_input_mux_control), | |
137 | SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0), | |
138 | SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0, | |
139 | &ak4535_mono2_control), | |
140 | /* speaker powersave bit */ | |
141 | SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0), | |
142 | SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0, | |
143 | &ak4535_line_control), | |
144 | SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0, | |
145 | &ak4535_hpl_control), | |
146 | SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0, | |
147 | &ak4535_hpr_control), | |
148 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
149 | SND_SOC_DAPM_OUTPUT("HPL"), | |
150 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
151 | SND_SOC_DAPM_OUTPUT("HPR"), | |
152 | SND_SOC_DAPM_OUTPUT("SPP"), | |
153 | SND_SOC_DAPM_OUTPUT("SPN"), | |
154 | SND_SOC_DAPM_OUTPUT("MOUT1"), | |
155 | SND_SOC_DAPM_OUTPUT("MOUT2"), | |
156 | SND_SOC_DAPM_OUTPUT("MICOUT"), | |
157 | SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0), | |
158 | SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0), | |
159 | SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0), | |
160 | SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0), | |
161 | SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0), | |
162 | SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0), | |
163 | SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0), | |
164 | SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0), | |
165 | ||
166 | SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0), | |
167 | SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0), | |
168 | SND_SOC_DAPM_INPUT("MICIN"), | |
169 | SND_SOC_DAPM_INPUT("MICEXT"), | |
170 | SND_SOC_DAPM_INPUT("AUX"), | |
171 | SND_SOC_DAPM_INPUT("MIN"), | |
172 | SND_SOC_DAPM_INPUT("AIN"), | |
173 | }; | |
174 | ||
b63c963d | 175 | static const struct snd_soc_dapm_route ak4535_audio_map[] = { |
796d2ca8 RP |
176 | /*stereo mixer */ |
177 | {"Stereo Mixer", "Playback Switch", "DAC"}, | |
178 | {"Stereo Mixer", "Mic Sidetone Switch", "Mic"}, | |
179 | {"Stereo Mixer", "Aux Bypass Switch", "AUX In"}, | |
180 | ||
181 | /* mono1 mixer */ | |
182 | {"Mono1 Mixer", "Mic Sidetone Switch", "Mic"}, | |
183 | {"Mono1 Mixer", "Mono Playback Switch", "DAC"}, | |
184 | ||
185 | /* Mic */ | |
186 | {"Mic", NULL, "AIN"}, | |
187 | {"Input Mux", "Internal", "Mic Int Bias"}, | |
188 | {"Input Mux", "External", "Mic Ext Bias"}, | |
189 | {"Mic Int Bias", NULL, "MICIN"}, | |
190 | {"Mic Ext Bias", NULL, "MICEXT"}, | |
191 | {"MICOUT", NULL, "Input Mux"}, | |
192 | ||
193 | /* line out */ | |
194 | {"LOUT", NULL, "Line Out Enable"}, | |
195 | {"ROUT", NULL, "Line Out Enable"}, | |
196 | {"Line Out Enable", "Switch", "Line Out"}, | |
197 | {"Line Out", NULL, "Stereo Mixer"}, | |
198 | ||
199 | /* mono1 out */ | |
200 | {"MOUT1", NULL, "Mono Out"}, | |
201 | {"Mono Out", NULL, "Mono1 Mixer"}, | |
202 | ||
203 | /* left HP */ | |
204 | {"HPL", NULL, "Left HP Enable"}, | |
205 | {"Left HP Enable", "Switch", "HP L Amp"}, | |
206 | {"HP L Amp", NULL, "Stereo Mixer"}, | |
207 | ||
208 | /* right HP */ | |
209 | {"HPR", NULL, "Right HP Enable"}, | |
210 | {"Right HP Enable", "Switch", "HP R Amp"}, | |
211 | {"HP R Amp", NULL, "Stereo Mixer"}, | |
212 | ||
213 | /* speaker */ | |
214 | {"SPP", NULL, "Speaker Enable"}, | |
215 | {"SPN", NULL, "Speaker Enable"}, | |
216 | {"Speaker Enable", "Switch", "Spk Amp"}, | |
217 | {"Spk Amp", NULL, "MIN"}, | |
218 | ||
219 | /* mono 2 */ | |
220 | {"MOUT2", NULL, "Mono 2 Enable"}, | |
221 | {"Mono 2 Enable", "Switch", "Stereo Mixer"}, | |
222 | ||
223 | /* Aux In */ | |
224 | {"Aux In", NULL, "AUX"}, | |
225 | ||
226 | /* ADC */ | |
227 | {"ADC", NULL, "Input Mixer"}, | |
228 | {"Input Mixer", "Mic Capture Switch", "Mic"}, | |
229 | {"Input Mixer", "Aux Capture Switch", "Aux In"}, | |
230 | }; | |
231 | ||
e550e17f | 232 | static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
233 | int clk_id, unsigned int freq, int dir) |
234 | { | |
235 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 236 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
796d2ca8 RP |
237 | |
238 | ak4535->sysclk = freq; | |
239 | return 0; | |
240 | } | |
241 | ||
242 | static int ak4535_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d MB |
243 | struct snd_pcm_hw_params *params, |
244 | struct snd_soc_dai *dai) | |
796d2ca8 RP |
245 | { |
246 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 247 | struct snd_soc_codec *codec = rtd->codec; |
b2c812e2 | 248 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
3b184503 | 249 | u8 mode2 = snd_soc_read(codec, AK4535_MODE2) & ~(0x3 << 5); |
796d2ca8 RP |
250 | int rate = params_rate(params), fs = 256; |
251 | ||
252 | if (rate) | |
253 | fs = ak4535->sysclk / rate; | |
254 | ||
255 | /* set fs */ | |
256 | switch (fs) { | |
257 | case 1024: | |
258 | mode2 |= (0x2 << 5); | |
259 | break; | |
260 | case 512: | |
261 | mode2 |= (0x1 << 5); | |
262 | break; | |
263 | case 256: | |
264 | break; | |
265 | } | |
266 | ||
267 | /* set rate */ | |
3b184503 | 268 | snd_soc_write(codec, AK4535_MODE2, mode2); |
796d2ca8 RP |
269 | return 0; |
270 | } | |
271 | ||
e550e17f | 272 | static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai, |
796d2ca8 RP |
273 | unsigned int fmt) |
274 | { | |
275 | struct snd_soc_codec *codec = codec_dai->codec; | |
276 | u8 mode1 = 0; | |
277 | ||
278 | /* interface format */ | |
279 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
280 | case SND_SOC_DAIFMT_I2S: | |
281 | mode1 = 0x0002; | |
282 | break; | |
283 | case SND_SOC_DAIFMT_LEFT_J: | |
284 | mode1 = 0x0001; | |
285 | break; | |
286 | default: | |
287 | return -EINVAL; | |
288 | } | |
289 | ||
290 | /* use 32 fs for BCLK to save power */ | |
291 | mode1 |= 0x4; | |
292 | ||
3b184503 | 293 | snd_soc_write(codec, AK4535_MODE1, mode1); |
796d2ca8 RP |
294 | return 0; |
295 | } | |
296 | ||
e550e17f | 297 | static int ak4535_mute(struct snd_soc_dai *dai, int mute) |
796d2ca8 RP |
298 | { |
299 | struct snd_soc_codec *codec = dai->codec; | |
3b184503 | 300 | u16 mute_reg = snd_soc_read(codec, AK4535_DAC); |
796d2ca8 | 301 | if (!mute) |
3b184503 | 302 | snd_soc_write(codec, AK4535_DAC, mute_reg & ~0x20); |
796d2ca8 | 303 | else |
3b184503 | 304 | snd_soc_write(codec, AK4535_DAC, mute_reg | 0x20); |
796d2ca8 RP |
305 | return 0; |
306 | } | |
307 | ||
308 | static int ak4535_set_bias_level(struct snd_soc_codec *codec, | |
309 | enum snd_soc_bias_level level) | |
310 | { | |
796d2ca8 RP |
311 | switch (level) { |
312 | case SND_SOC_BIAS_ON: | |
3b184503 | 313 | snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0); |
796d2ca8 RP |
314 | break; |
315 | case SND_SOC_BIAS_PREPARE: | |
3b184503 | 316 | snd_soc_update_bits(codec, AK4535_DAC, 0x20, 0x20); |
796d2ca8 RP |
317 | break; |
318 | case SND_SOC_BIAS_STANDBY: | |
3b184503 AL |
319 | snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0x80); |
320 | snd_soc_update_bits(codec, AK4535_PM2, 0x80, 0); | |
796d2ca8 RP |
321 | break; |
322 | case SND_SOC_BIAS_OFF: | |
3b184503 | 323 | snd_soc_update_bits(codec, AK4535_PM1, 0x80, 0); |
796d2ca8 RP |
324 | break; |
325 | } | |
ce6120cc | 326 | codec->dapm.bias_level = level; |
796d2ca8 RP |
327 | return 0; |
328 | } | |
329 | ||
330 | #define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
331 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
332 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) | |
333 | ||
6335d055 EM |
334 | static struct snd_soc_dai_ops ak4535_dai_ops = { |
335 | .hw_params = ak4535_hw_params, | |
336 | .set_fmt = ak4535_set_dai_fmt, | |
337 | .digital_mute = ak4535_mute, | |
338 | .set_sysclk = ak4535_set_dai_sysclk, | |
339 | }; | |
340 | ||
f0fba2ad LG |
341 | static struct snd_soc_dai_driver ak4535_dai = { |
342 | .name = "ak4535-hifi", | |
796d2ca8 RP |
343 | .playback = { |
344 | .stream_name = "Playback", | |
345 | .channels_min = 1, | |
346 | .channels_max = 2, | |
347 | .rates = AK4535_RATES, | |
348 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
349 | .capture = { | |
350 | .stream_name = "Capture", | |
351 | .channels_min = 1, | |
352 | .channels_max = 2, | |
353 | .rates = AK4535_RATES, | |
354 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
6335d055 | 355 | .ops = &ak4535_dai_ops, |
796d2ca8 | 356 | }; |
796d2ca8 | 357 | |
f0fba2ad | 358 | static int ak4535_suspend(struct snd_soc_codec *codec, pm_message_t state) |
796d2ca8 | 359 | { |
796d2ca8 RP |
360 | ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); |
361 | return 0; | |
362 | } | |
363 | ||
f0fba2ad | 364 | static int ak4535_resume(struct snd_soc_codec *codec) |
796d2ca8 | 365 | { |
3b184503 | 366 | snd_soc_cache_sync(codec); |
796d2ca8 | 367 | ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
796d2ca8 RP |
368 | return 0; |
369 | } | |
370 | ||
f0fba2ad | 371 | static int ak4535_probe(struct snd_soc_codec *codec) |
796d2ca8 | 372 | { |
f0fba2ad | 373 | struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); |
3b184503 | 374 | int ret; |
796d2ca8 | 375 | |
f0fba2ad | 376 | printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION); |
796d2ca8 | 377 | |
3b184503 AL |
378 | ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4535->control_type); |
379 | if (ret < 0) { | |
380 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
381 | return ret; | |
382 | } | |
796d2ca8 RP |
383 | /* power on device */ |
384 | ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
385 | ||
3e8e1952 IM |
386 | snd_soc_add_controls(codec, ak4535_snd_controls, |
387 | ARRAY_SIZE(ak4535_snd_controls)); | |
f0fba2ad LG |
388 | return 0; |
389 | } | |
796d2ca8 | 390 | |
f0fba2ad LG |
391 | /* power down chip */ |
392 | static int ak4535_remove(struct snd_soc_codec *codec) | |
393 | { | |
394 | ak4535_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
395 | return 0; | |
796d2ca8 RP |
396 | } |
397 | ||
f0fba2ad LG |
398 | static struct snd_soc_codec_driver soc_codec_dev_ak4535 = { |
399 | .probe = ak4535_probe, | |
400 | .remove = ak4535_remove, | |
401 | .suspend = ak4535_suspend, | |
402 | .resume = ak4535_resume, | |
f0fba2ad LG |
403 | .set_bias_level = ak4535_set_bias_level, |
404 | .reg_cache_size = ARRAY_SIZE(ak4535_reg), | |
405 | .reg_word_size = sizeof(u8), | |
406 | .reg_cache_default = ak4535_reg, | |
b63c963d LG |
407 | .dapm_widgets = ak4535_dapm_widgets, |
408 | .num_dapm_widgets = ARRAY_SIZE(ak4535_dapm_widgets), | |
409 | .dapm_routes = ak4535_audio_map, | |
410 | .num_dapm_routes = ARRAY_SIZE(ak4535_audio_map), | |
f0fba2ad | 411 | }; |
796d2ca8 RP |
412 | |
413 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
f0fba2ad LG |
414 | static __devinit int ak4535_i2c_probe(struct i2c_client *i2c, |
415 | const struct i2c_device_id *id) | |
796d2ca8 | 416 | { |
f0fba2ad | 417 | struct ak4535_priv *ak4535; |
796d2ca8 RP |
418 | int ret; |
419 | ||
f0fba2ad LG |
420 | ak4535 = kzalloc(sizeof(struct ak4535_priv), GFP_KERNEL); |
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); | |
429 | if (ret < 0) | |
430 | kfree(ak4535); | |
796d2ca8 RP |
431 | return ret; |
432 | } | |
433 | ||
f0fba2ad | 434 | static __devexit int ak4535_i2c_remove(struct i2c_client *client) |
796d2ca8 | 435 | { |
f0fba2ad LG |
436 | snd_soc_unregister_codec(&client->dev); |
437 | kfree(i2c_get_clientdata(client)); | |
796d2ca8 RP |
438 | return 0; |
439 | } | |
440 | ||
d28d2713 JD |
441 | static const struct i2c_device_id ak4535_i2c_id[] = { |
442 | { "ak4535", 0 }, | |
443 | { } | |
444 | }; | |
445 | MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id); | |
796d2ca8 | 446 | |
796d2ca8 RP |
447 | static struct i2c_driver ak4535_i2c_driver = { |
448 | .driver = { | |
f0fba2ad | 449 | .name = "ak4535-codec", |
796d2ca8 RP |
450 | .owner = THIS_MODULE, |
451 | }, | |
d28d2713 | 452 | .probe = ak4535_i2c_probe, |
f0fba2ad | 453 | .remove = __devexit_p(ak4535_i2c_remove), |
d28d2713 | 454 | .id_table = ak4535_i2c_id, |
796d2ca8 | 455 | }; |
796d2ca8 RP |
456 | #endif |
457 | ||
f0fba2ad | 458 | static int __init ak4535_modinit(void) |
796d2ca8 | 459 | { |
f0fba2ad | 460 | int ret = 0; |
796d2ca8 | 461 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
f0fba2ad | 462 | ret = i2c_add_driver(&ak4535_i2c_driver); |
3051e41a | 463 | if (ret != 0) { |
f0fba2ad LG |
464 | printk(KERN_ERR "Failed to register AK4535 I2C driver: %d\n", |
465 | ret); | |
3051e41a | 466 | } |
f0fba2ad | 467 | #endif |
796d2ca8 RP |
468 | return ret; |
469 | } | |
f0fba2ad | 470 | module_init(ak4535_modinit); |
796d2ca8 | 471 | |
f0fba2ad | 472 | static void __exit ak4535_exit(void) |
796d2ca8 | 473 | { |
796d2ca8 RP |
474 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
475 | i2c_del_driver(&ak4535_i2c_driver); | |
476 | #endif | |
64089b84 MB |
477 | } |
478 | module_exit(ak4535_exit); | |
479 | ||
796d2ca8 RP |
480 | MODULE_DESCRIPTION("Soc AK4535 driver"); |
481 | MODULE_AUTHOR("Richard Purdie"); | |
482 | MODULE_LICENSE("GPL"); |