Commit | Line | Data |
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40e0aa64 RP |
1 | /* |
2 | * wm8731.c -- WM8731 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> | |
d2a40355 | 22 | #include <linux/spi/spi.h> |
40e0aa64 RP |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/pcm_params.h> | |
26 | #include <sound/soc.h> | |
27 | #include <sound/soc-dapm.h> | |
28 | #include <sound/initval.h> | |
29 | ||
30 | #include "wm8731.h" | |
31 | ||
5998102b | 32 | static struct snd_soc_codec *wm8731_codec; |
40e0aa64 RP |
33 | struct snd_soc_codec_device soc_codec_dev_wm8731; |
34 | ||
b36d61d4 FM |
35 | /* codec private data */ |
36 | struct wm8731_priv { | |
5998102b MB |
37 | struct snd_soc_codec codec; |
38 | u16 reg_cache[WM8731_CACHEREGNUM]; | |
b36d61d4 FM |
39 | unsigned int sysclk; |
40 | }; | |
41 | ||
a8035c8f MB |
42 | #ifdef CONFIG_SPI_MASTER |
43 | static int wm8731_spi_write(struct spi_device *spi, const char *data, int len); | |
a8035c8f MB |
44 | #endif |
45 | ||
40e0aa64 RP |
46 | /* |
47 | * wm8731 register cache | |
48 | * We can't read the WM8731 register space when we are | |
49 | * using 2 wire for device control, so we cache them instead. | |
50 | * There is no point in caching the reset register | |
51 | */ | |
52 | static const u16 wm8731_reg[WM8731_CACHEREGNUM] = { | |
17a52fd6 MB |
53 | 0x0097, 0x0097, 0x0079, 0x0079, |
54 | 0x000a, 0x0008, 0x009f, 0x000a, | |
55 | 0x0000, 0x0000 | |
40e0aa64 RP |
56 | }; |
57 | ||
17a52fd6 | 58 | #define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0) |
40e0aa64 RP |
59 | |
60 | static const char *wm8731_input_select[] = {"Line In", "Mic"}; | |
61 | static const char *wm8731_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; | |
62 | ||
63 | static const struct soc_enum wm8731_enum[] = { | |
64 | SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select), | |
65 | SOC_ENUM_SINGLE(WM8731_APDIGI, 1, 4, wm8731_deemph), | |
66 | }; | |
67 | ||
68 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { | |
69 | ||
bd903b6e LG |
70 | SOC_DOUBLE_R("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
71 | 0, 127, 0), | |
72 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, | |
73 | 7, 1, 0), | |
40e0aa64 RP |
74 | |
75 | SOC_DOUBLE_R("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0), | |
76 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), | |
77 | ||
78 | SOC_SINGLE("Mic Boost (+20dB)", WM8731_APANA, 0, 1, 0), | |
79 | SOC_SINGLE("Capture Mic Switch", WM8731_APANA, 1, 1, 1), | |
80 | ||
81 | SOC_SINGLE("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1), | |
82 | ||
83 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), | |
84 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), | |
85 | ||
86 | SOC_ENUM("Playback De-emphasis", wm8731_enum[1]), | |
87 | }; | |
88 | ||
40e0aa64 RP |
89 | /* Output Mixer */ |
90 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { | |
91 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), | |
92 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), | |
93 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), | |
94 | }; | |
95 | ||
96 | /* Input mux */ | |
97 | static const struct snd_kcontrol_new wm8731_input_mux_controls = | |
98 | SOC_DAPM_ENUM("Input Select", wm8731_enum[0]); | |
99 | ||
100 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
101 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, | |
102 | &wm8731_output_mixer_controls[0], | |
103 | ARRAY_SIZE(wm8731_output_mixer_controls)), | |
104 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), | |
105 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
106 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
107 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
108 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
109 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), | |
110 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), | |
111 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), | |
112 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), | |
113 | SND_SOC_DAPM_INPUT("MICIN"), | |
114 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
115 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
116 | }; | |
117 | ||
a65f0568 | 118 | static const struct snd_soc_dapm_route intercon[] = { |
40e0aa64 RP |
119 | /* output mixer */ |
120 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
121 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
122 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
123 | ||
124 | /* outputs */ | |
125 | {"RHPOUT", NULL, "Output Mixer"}, | |
126 | {"ROUT", NULL, "Output Mixer"}, | |
127 | {"LHPOUT", NULL, "Output Mixer"}, | |
128 | {"LOUT", NULL, "Output Mixer"}, | |
129 | ||
130 | /* input mux */ | |
131 | {"Input Mux", "Line In", "Line Input"}, | |
132 | {"Input Mux", "Mic", "Mic Bias"}, | |
133 | {"ADC", NULL, "Input Mux"}, | |
134 | ||
135 | /* inputs */ | |
136 | {"Line Input", NULL, "LLINEIN"}, | |
137 | {"Line Input", NULL, "RLINEIN"}, | |
138 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
139 | }; |
140 | ||
141 | static int wm8731_add_widgets(struct snd_soc_codec *codec) | |
142 | { | |
a65f0568 MB |
143 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
144 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
40e0aa64 | 145 | |
a65f0568 | 146 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); |
40e0aa64 RP |
147 | |
148 | snd_soc_dapm_new_widgets(codec); | |
149 | return 0; | |
150 | } | |
151 | ||
152 | struct _coeff_div { | |
153 | u32 mclk; | |
154 | u32 rate; | |
155 | u16 fs; | |
156 | u8 sr:4; | |
157 | u8 bosr:1; | |
158 | u8 usb:1; | |
159 | }; | |
160 | ||
161 | /* codec mclk clock divider coefficients */ | |
162 | static const struct _coeff_div coeff_div[] = { | |
163 | /* 48k */ | |
164 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
165 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
166 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
167 | ||
168 | /* 32k */ | |
169 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
170 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 171 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
172 | |
173 | /* 8k */ | |
174 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
175 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
176 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
177 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
178 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
179 | ||
180 | /* 96k */ | |
181 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
182 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
183 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
184 | ||
185 | /* 44.1k */ | |
186 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
187 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
188 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
189 | ||
190 | /* 88.2k */ | |
191 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
192 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
193 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
194 | }; | |
195 | ||
196 | static inline int get_coeff(int mclk, int rate) | |
197 | { | |
198 | int i; | |
199 | ||
200 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
201 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
202 | return i; | |
203 | } | |
204 | return 0; | |
205 | } | |
206 | ||
b36d61d4 | 207 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
208 | struct snd_pcm_hw_params *params, |
209 | struct snd_soc_dai *dai) | |
40e0aa64 | 210 | { |
b36d61d4 FM |
211 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
212 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 213 | struct snd_soc_codec *codec = socdev->card->codec; |
b36d61d4 | 214 | struct wm8731_priv *wm8731 = codec->private_data; |
17a52fd6 | 215 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
216 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
217 | u16 srate = (coeff_div[i].sr << 2) | | |
218 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 219 | |
17a52fd6 | 220 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
221 | |
222 | /* bit size */ | |
223 | switch (params_format(params)) { | |
224 | case SNDRV_PCM_FORMAT_S16_LE: | |
225 | break; | |
226 | case SNDRV_PCM_FORMAT_S20_3LE: | |
227 | iface |= 0x0004; | |
228 | break; | |
229 | case SNDRV_PCM_FORMAT_S24_LE: | |
230 | iface |= 0x0008; | |
231 | break; | |
232 | } | |
40e0aa64 | 233 | |
17a52fd6 | 234 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 235 | return 0; |
40e0aa64 RP |
236 | } |
237 | ||
dee89c4d MB |
238 | static int wm8731_pcm_prepare(struct snd_pcm_substream *substream, |
239 | struct snd_soc_dai *dai) | |
40e0aa64 RP |
240 | { |
241 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
242 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 243 | struct snd_soc_codec *codec = socdev->card->codec; |
b36d61d4 FM |
244 | |
245 | /* set active */ | |
17a52fd6 | 246 | snd_soc_write(codec, WM8731_ACTIVE, 0x0001); |
b36d61d4 FM |
247 | |
248 | return 0; | |
249 | } | |
250 | ||
dee89c4d MB |
251 | static void wm8731_shutdown(struct snd_pcm_substream *substream, |
252 | struct snd_soc_dai *dai) | |
b36d61d4 FM |
253 | { |
254 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
255 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 256 | struct snd_soc_codec *codec = socdev->card->codec; |
b36d61d4 FM |
257 | |
258 | /* deactivate */ | |
259 | if (!codec->active) { | |
260 | udelay(50); | |
17a52fd6 | 261 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
b36d61d4 FM |
262 | } |
263 | } | |
264 | ||
e550e17f | 265 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
266 | { |
267 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 268 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
269 | |
270 | if (mute) | |
17a52fd6 | 271 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 272 | else |
17a52fd6 | 273 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
274 | return 0; |
275 | } | |
276 | ||
e550e17f | 277 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
278 | int clk_id, unsigned int freq, int dir) |
279 | { | |
280 | struct snd_soc_codec *codec = codec_dai->codec; | |
281 | struct wm8731_priv *wm8731 = codec->private_data; | |
282 | ||
283 | switch (freq) { | |
284 | case 11289600: | |
285 | case 12000000: | |
286 | case 12288000: | |
287 | case 16934400: | |
288 | case 18432000: | |
289 | wm8731->sysclk = freq; | |
290 | return 0; | |
291 | } | |
292 | return -EINVAL; | |
293 | } | |
294 | ||
295 | ||
e550e17f | 296 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
297 | unsigned int fmt) |
298 | { | |
299 | struct snd_soc_codec *codec = codec_dai->codec; | |
300 | u16 iface = 0; | |
40e0aa64 RP |
301 | |
302 | /* set master/slave audio interface */ | |
b36d61d4 | 303 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
304 | case SND_SOC_DAIFMT_CBM_CFM: |
305 | iface |= 0x0040; | |
306 | break; | |
307 | case SND_SOC_DAIFMT_CBS_CFS: | |
308 | break; | |
b36d61d4 FM |
309 | default: |
310 | return -EINVAL; | |
40e0aa64 | 311 | } |
40e0aa64 RP |
312 | |
313 | /* interface format */ | |
b36d61d4 | 314 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
315 | case SND_SOC_DAIFMT_I2S: |
316 | iface |= 0x0002; | |
317 | break; | |
318 | case SND_SOC_DAIFMT_RIGHT_J: | |
319 | break; | |
320 | case SND_SOC_DAIFMT_LEFT_J: | |
321 | iface |= 0x0001; | |
322 | break; | |
323 | case SND_SOC_DAIFMT_DSP_A: | |
324 | iface |= 0x0003; | |
325 | break; | |
326 | case SND_SOC_DAIFMT_DSP_B: | |
327 | iface |= 0x0013; | |
328 | break; | |
b36d61d4 FM |
329 | default: |
330 | return -EINVAL; | |
40e0aa64 RP |
331 | } |
332 | ||
333 | /* clock inversion */ | |
b36d61d4 | 334 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
335 | case SND_SOC_DAIFMT_NB_NF: |
336 | break; | |
337 | case SND_SOC_DAIFMT_IB_IF: | |
338 | iface |= 0x0090; | |
339 | break; | |
340 | case SND_SOC_DAIFMT_IB_NF: | |
341 | iface |= 0x0080; | |
342 | break; | |
343 | case SND_SOC_DAIFMT_NB_IF: | |
344 | iface |= 0x0010; | |
345 | break; | |
b36d61d4 FM |
346 | default: |
347 | return -EINVAL; | |
40e0aa64 RP |
348 | } |
349 | ||
350 | /* set iface */ | |
17a52fd6 | 351 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
352 | return 0; |
353 | } | |
354 | ||
0be9898a MB |
355 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
356 | enum snd_soc_bias_level level) | |
40e0aa64 | 357 | { |
22d22ee5 | 358 | u16 reg; |
40e0aa64 | 359 | |
0be9898a MB |
360 | switch (level) { |
361 | case SND_SOC_BIAS_ON: | |
40e0aa64 | 362 | break; |
0be9898a | 363 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 364 | break; |
0be9898a | 365 | case SND_SOC_BIAS_STANDBY: |
22d22ee5 | 366 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
367 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
368 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 369 | break; |
0be9898a | 370 | case SND_SOC_BIAS_OFF: |
17a52fd6 MB |
371 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
372 | snd_soc_write(codec, WM8731_PWR, 0xffff); | |
40e0aa64 RP |
373 | break; |
374 | } | |
0be9898a | 375 | codec->bias_level = level; |
40e0aa64 RP |
376 | return 0; |
377 | } | |
378 | ||
b36d61d4 FM |
379 | #define WM8731_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
380 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
381 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ | |
382 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ | |
383 | SNDRV_PCM_RATE_96000) | |
384 | ||
385 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
386 | SNDRV_PCM_FMTBIT_S24_LE) | |
387 | ||
6335d055 EM |
388 | static struct snd_soc_dai_ops wm8731_dai_ops = { |
389 | .prepare = wm8731_pcm_prepare, | |
390 | .hw_params = wm8731_hw_params, | |
391 | .shutdown = wm8731_shutdown, | |
392 | .digital_mute = wm8731_mute, | |
393 | .set_sysclk = wm8731_set_dai_sysclk, | |
394 | .set_fmt = wm8731_set_dai_fmt, | |
395 | }; | |
396 | ||
e550e17f | 397 | struct snd_soc_dai wm8731_dai = { |
40e0aa64 RP |
398 | .name = "WM8731", |
399 | .playback = { | |
400 | .stream_name = "Playback", | |
401 | .channels_min = 1, | |
402 | .channels_max = 2, | |
b36d61d4 FM |
403 | .rates = WM8731_RATES, |
404 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
405 | .capture = { |
406 | .stream_name = "Capture", | |
407 | .channels_min = 1, | |
408 | .channels_max = 2, | |
b36d61d4 FM |
409 | .rates = WM8731_RATES, |
410 | .formats = WM8731_FORMATS,}, | |
6335d055 | 411 | .ops = &wm8731_dai_ops, |
40e0aa64 RP |
412 | }; |
413 | EXPORT_SYMBOL_GPL(wm8731_dai); | |
414 | ||
b3b50b3f | 415 | #ifdef CONFIG_PM |
40e0aa64 RP |
416 | static int wm8731_suspend(struct platform_device *pdev, pm_message_t state) |
417 | { | |
418 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 419 | struct snd_soc_codec *codec = socdev->card->codec; |
40e0aa64 | 420 | |
17a52fd6 | 421 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
0be9898a | 422 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
40e0aa64 RP |
423 | return 0; |
424 | } | |
425 | ||
426 | static int wm8731_resume(struct platform_device *pdev) | |
427 | { | |
428 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 429 | struct snd_soc_codec *codec = socdev->card->codec; |
40e0aa64 RP |
430 | int i; |
431 | u8 data[2]; | |
432 | u16 *cache = codec->reg_cache; | |
433 | ||
434 | /* Sync reg_cache with the hardware */ | |
435 | for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) { | |
436 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
437 | data[1] = cache[i] & 0x00ff; | |
438 | codec->hw_write(codec->control_data, data, 2); | |
439 | } | |
0be9898a MB |
440 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
441 | wm8731_set_bias_level(codec, codec->suspend_bias_level); | |
40e0aa64 RP |
442 | return 0; |
443 | } | |
b3b50b3f MB |
444 | #else |
445 | #define wm8731_suspend NULL | |
446 | #define wm8731_resume NULL | |
447 | #endif | |
40e0aa64 | 448 | |
5998102b | 449 | static int wm8731_probe(struct platform_device *pdev) |
40e0aa64 | 450 | { |
5998102b MB |
451 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
452 | struct snd_soc_codec *codec; | |
453 | int ret = 0; | |
40e0aa64 | 454 | |
5998102b MB |
455 | if (wm8731_codec == NULL) { |
456 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
457 | return -ENODEV; | |
458 | } | |
40e0aa64 | 459 | |
5998102b MB |
460 | socdev->card->codec = wm8731_codec; |
461 | codec = wm8731_codec; | |
40e0aa64 RP |
462 | |
463 | /* register pcms */ | |
464 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
465 | if (ret < 0) { | |
5998102b | 466 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); |
e35115a5 | 467 | goto pcm_err; |
40e0aa64 RP |
468 | } |
469 | ||
3e8e1952 | 470 | snd_soc_add_controls(codec, wm8731_snd_controls, |
5998102b | 471 | ARRAY_SIZE(wm8731_snd_controls)); |
40e0aa64 | 472 | wm8731_add_widgets(codec); |
968a6025 | 473 | ret = snd_soc_init_card(socdev); |
40e0aa64 | 474 | if (ret < 0) { |
5998102b | 475 | dev_err(codec->dev, "failed to register card: %d\n", ret); |
e35115a5 | 476 | goto card_err; |
40e0aa64 RP |
477 | } |
478 | ||
479 | return ret; | |
e35115a5 LG |
480 | |
481 | card_err: | |
482 | snd_soc_free_pcms(socdev); | |
483 | snd_soc_dapm_free(socdev); | |
484 | pcm_err: | |
40e0aa64 RP |
485 | return ret; |
486 | } | |
487 | ||
488 | /* power down chip */ | |
489 | static int wm8731_remove(struct platform_device *pdev) | |
490 | { | |
491 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
40e0aa64 RP |
492 | |
493 | snd_soc_free_pcms(socdev); | |
494 | snd_soc_dapm_free(socdev); | |
40e0aa64 RP |
495 | |
496 | return 0; | |
497 | } | |
498 | ||
499 | struct snd_soc_codec_device soc_codec_dev_wm8731 = { | |
500 | .probe = wm8731_probe, | |
501 | .remove = wm8731_remove, | |
502 | .suspend = wm8731_suspend, | |
503 | .resume = wm8731_resume, | |
504 | }; | |
40e0aa64 RP |
505 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8731); |
506 | ||
7084a42b MB |
507 | static int wm8731_register(struct wm8731_priv *wm8731, |
508 | enum snd_soc_control_type control) | |
a8035c8f | 509 | { |
a8035c8f | 510 | int ret; |
5998102b | 511 | struct snd_soc_codec *codec = &wm8731->codec; |
a8035c8f | 512 | |
5998102b MB |
513 | if (wm8731_codec) { |
514 | dev_err(codec->dev, "Another WM8731 is registered\n"); | |
fe5422fc MB |
515 | ret = -EINVAL; |
516 | goto err; | |
5998102b | 517 | } |
a8035c8f | 518 | |
5998102b MB |
519 | mutex_init(&codec->mutex); |
520 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
521 | INIT_LIST_HEAD(&codec->dapm_paths); | |
a8035c8f | 522 | |
5998102b MB |
523 | codec->private_data = wm8731; |
524 | codec->name = "WM8731"; | |
525 | codec->owner = THIS_MODULE; | |
5998102b MB |
526 | codec->bias_level = SND_SOC_BIAS_OFF; |
527 | codec->set_bias_level = wm8731_set_bias_level; | |
528 | codec->dai = &wm8731_dai; | |
529 | codec->num_dai = 1; | |
530 | codec->reg_cache_size = WM8731_CACHEREGNUM; | |
531 | codec->reg_cache = &wm8731->reg_cache; | |
532 | ||
533 | memcpy(codec->reg_cache, wm8731_reg, sizeof(wm8731_reg)); | |
534 | ||
7084a42b | 535 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); |
17a52fd6 MB |
536 | if (ret < 0) { |
537 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
538 | goto err; | |
539 | } | |
540 | ||
519cf2df MB |
541 | ret = wm8731_reset(codec); |
542 | if (ret < 0) { | |
fe5422fc MB |
543 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
544 | goto err; | |
519cf2df MB |
545 | } |
546 | ||
5998102b MB |
547 | wm8731_dai.dev = codec->dev; |
548 | ||
5998102b MB |
549 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
550 | ||
551 | /* Latch the update bits */ | |
17a52fd6 MB |
552 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
553 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); | |
554 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); | |
555 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); | |
5998102b | 556 | |
ce3bdaa8 | 557 | /* Disable bypass path by default */ |
17a52fd6 | 558 | snd_soc_update_bits(codec, WM8731_APANA, 0x4, 0); |
ce3bdaa8 | 559 | |
5998102b MB |
560 | wm8731_codec = codec; |
561 | ||
562 | ret = snd_soc_register_codec(codec); | |
563 | if (ret != 0) { | |
564 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
fe5422fc | 565 | goto err; |
5998102b MB |
566 | } |
567 | ||
568 | ret = snd_soc_register_dai(&wm8731_dai); | |
569 | if (ret != 0) { | |
570 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
571 | snd_soc_unregister_codec(codec); | |
fe5422fc | 572 | goto err_codec; |
5998102b | 573 | } |
a8035c8f | 574 | |
a8035c8f | 575 | return 0; |
fe5422fc MB |
576 | |
577 | err_codec: | |
578 | snd_soc_unregister_codec(codec); | |
579 | err: | |
580 | kfree(wm8731); | |
581 | return ret; | |
a8035c8f MB |
582 | } |
583 | ||
5998102b MB |
584 | static void wm8731_unregister(struct wm8731_priv *wm8731) |
585 | { | |
586 | wm8731_set_bias_level(&wm8731->codec, SND_SOC_BIAS_OFF); | |
587 | snd_soc_unregister_dai(&wm8731_dai); | |
588 | snd_soc_unregister_codec(&wm8731->codec); | |
589 | kfree(wm8731); | |
590 | wm8731_codec = NULL; | |
591 | } | |
a8035c8f | 592 | |
5998102b | 593 | #if defined(CONFIG_SPI_MASTER) |
a8035c8f MB |
594 | static int wm8731_spi_write(struct spi_device *spi, const char *data, int len) |
595 | { | |
596 | struct spi_transfer t; | |
597 | struct spi_message m; | |
598 | u8 msg[2]; | |
599 | ||
600 | if (len <= 0) | |
601 | return 0; | |
602 | ||
603 | msg[0] = data[0]; | |
604 | msg[1] = data[1]; | |
605 | ||
606 | spi_message_init(&m); | |
607 | memset(&t, 0, (sizeof t)); | |
608 | ||
609 | t.tx_buf = &msg[0]; | |
610 | t.len = len; | |
611 | ||
612 | spi_message_add_tail(&t, &m); | |
613 | spi_sync(spi, &m); | |
614 | ||
615 | return len; | |
616 | } | |
5998102b MB |
617 | |
618 | static int __devinit wm8731_spi_probe(struct spi_device *spi) | |
619 | { | |
620 | struct snd_soc_codec *codec; | |
621 | struct wm8731_priv *wm8731; | |
622 | ||
623 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); | |
624 | if (wm8731 == NULL) | |
625 | return -ENOMEM; | |
626 | ||
627 | codec = &wm8731->codec; | |
628 | codec->control_data = spi; | |
629 | codec->hw_write = (hw_write_t)wm8731_spi_write; | |
630 | codec->dev = &spi->dev; | |
631 | ||
ae31c1fb | 632 | dev_set_drvdata(&spi->dev, wm8731); |
93b760b7 | 633 | |
7084a42b | 634 | return wm8731_register(wm8731, SND_SOC_SPI); |
5998102b MB |
635 | } |
636 | ||
637 | static int __devexit wm8731_spi_remove(struct spi_device *spi) | |
638 | { | |
ae31c1fb | 639 | struct wm8731_priv *wm8731 = dev_get_drvdata(&spi->dev); |
93b760b7 MB |
640 | |
641 | wm8731_unregister(wm8731); | |
642 | ||
5998102b MB |
643 | return 0; |
644 | } | |
645 | ||
b3b50b3f MB |
646 | #ifdef CONFIG_PM |
647 | static int wm8731_spi_suspend(struct spi_device *spi, pm_message_t msg) | |
648 | { | |
649 | return snd_soc_suspend_device(&spi->dev); | |
650 | } | |
651 | ||
652 | static int wm8731_spi_resume(struct spi_device *spi) | |
653 | { | |
654 | return snd_soc_resume_device(&spi->dev); | |
655 | } | |
656 | #else | |
657 | #define wm8731_spi_suspend NULL | |
658 | #define wm8731_spi_resume NULL | |
659 | #endif | |
660 | ||
5998102b MB |
661 | static struct spi_driver wm8731_spi_driver = { |
662 | .driver = { | |
663 | .name = "wm8731", | |
664 | .bus = &spi_bus_type, | |
665 | .owner = THIS_MODULE, | |
666 | }, | |
667 | .probe = wm8731_spi_probe, | |
b3b50b3f MB |
668 | .suspend = wm8731_spi_suspend, |
669 | .resume = wm8731_spi_resume, | |
5998102b MB |
670 | .remove = __devexit_p(wm8731_spi_remove), |
671 | }; | |
a8035c8f MB |
672 | #endif /* CONFIG_SPI_MASTER */ |
673 | ||
674 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
c6f29811 MB |
675 | static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, |
676 | const struct i2c_device_id *id) | |
a8035c8f | 677 | { |
5998102b MB |
678 | struct wm8731_priv *wm8731; |
679 | struct snd_soc_codec *codec; | |
a8035c8f | 680 | |
5998102b MB |
681 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
682 | if (wm8731 == NULL) | |
683 | return -ENOMEM; | |
684 | ||
685 | codec = &wm8731->codec; | |
5998102b MB |
686 | |
687 | i2c_set_clientdata(i2c, wm8731); | |
a8035c8f MB |
688 | codec->control_data = i2c; |
689 | ||
5998102b | 690 | codec->dev = &i2c->dev; |
a8035c8f | 691 | |
7084a42b | 692 | return wm8731_register(wm8731, SND_SOC_I2C); |
a8035c8f MB |
693 | } |
694 | ||
c6f29811 | 695 | static __devexit int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 696 | { |
5998102b MB |
697 | struct wm8731_priv *wm8731 = i2c_get_clientdata(client); |
698 | wm8731_unregister(wm8731); | |
a8035c8f MB |
699 | return 0; |
700 | } | |
701 | ||
b3b50b3f MB |
702 | #ifdef CONFIG_PM |
703 | static int wm8731_i2c_suspend(struct i2c_client *i2c, pm_message_t msg) | |
704 | { | |
705 | return snd_soc_suspend_device(&i2c->dev); | |
706 | } | |
707 | ||
708 | static int wm8731_i2c_resume(struct i2c_client *i2c) | |
709 | { | |
710 | return snd_soc_resume_device(&i2c->dev); | |
711 | } | |
712 | #else | |
713 | #define wm8731_i2c_suspend NULL | |
714 | #define wm8731_i2c_resume NULL | |
715 | #endif | |
716 | ||
a8035c8f MB |
717 | static const struct i2c_device_id wm8731_i2c_id[] = { |
718 | { "wm8731", 0 }, | |
719 | { } | |
720 | }; | |
721 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
722 | ||
723 | static struct i2c_driver wm8731_i2c_driver = { | |
724 | .driver = { | |
725 | .name = "WM8731 I2C Codec", | |
726 | .owner = THIS_MODULE, | |
727 | }, | |
728 | .probe = wm8731_i2c_probe, | |
c6f29811 | 729 | .remove = __devexit_p(wm8731_i2c_remove), |
b3b50b3f MB |
730 | .suspend = wm8731_i2c_suspend, |
731 | .resume = wm8731_i2c_resume, | |
a8035c8f MB |
732 | .id_table = wm8731_i2c_id, |
733 | }; | |
734 | #endif | |
735 | ||
c9b3a40f | 736 | static int __init wm8731_modinit(void) |
64089b84 | 737 | { |
5998102b MB |
738 | int ret; |
739 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
740 | ret = i2c_add_driver(&wm8731_i2c_driver); | |
741 | if (ret != 0) { | |
742 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
743 | ret); | |
744 | } | |
745 | #endif | |
746 | #if defined(CONFIG_SPI_MASTER) | |
747 | ret = spi_register_driver(&wm8731_spi_driver); | |
748 | if (ret != 0) { | |
749 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
750 | ret); | |
751 | } | |
752 | #endif | |
753 | return 0; | |
64089b84 MB |
754 | } |
755 | module_init(wm8731_modinit); | |
756 | ||
757 | static void __exit wm8731_exit(void) | |
758 | { | |
5998102b MB |
759 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
760 | i2c_del_driver(&wm8731_i2c_driver); | |
761 | #endif | |
762 | #if defined(CONFIG_SPI_MASTER) | |
763 | spi_unregister_driver(&wm8731_spi_driver); | |
764 | #endif | |
64089b84 MB |
765 | } |
766 | module_exit(wm8731_exit); | |
767 | ||
40e0aa64 RP |
768 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
769 | MODULE_AUTHOR("Richard Purdie"); | |
770 | MODULE_LICENSE("GPL"); |