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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> | |
7dea7c01 | 22 | #include <linux/regulator/consumer.h> |
d2a40355 | 23 | #include <linux/spi/spi.h> |
40e0aa64 RP |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
28 | #include <sound/soc-dapm.h> | |
29 | #include <sound/initval.h> | |
d00efa64 | 30 | #include <sound/tlv.h> |
40e0aa64 RP |
31 | |
32 | #include "wm8731.h" | |
33 | ||
5998102b | 34 | static struct snd_soc_codec *wm8731_codec; |
40e0aa64 RP |
35 | struct snd_soc_codec_device soc_codec_dev_wm8731; |
36 | ||
7dea7c01 MB |
37 | #define WM8731_NUM_SUPPLIES 4 |
38 | static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { | |
39 | "AVDD", | |
40 | "HPVDD", | |
41 | "DCVDD", | |
42 | "DBVDD", | |
43 | }; | |
44 | ||
b36d61d4 FM |
45 | /* codec private data */ |
46 | struct wm8731_priv { | |
5998102b | 47 | struct snd_soc_codec codec; |
7dea7c01 | 48 | struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; |
5998102b | 49 | u16 reg_cache[WM8731_CACHEREGNUM]; |
b36d61d4 FM |
50 | unsigned int sysclk; |
51 | }; | |
52 | ||
a8035c8f | 53 | |
40e0aa64 RP |
54 | /* |
55 | * wm8731 register cache | |
56 | * We can't read the WM8731 register space when we are | |
57 | * using 2 wire for device control, so we cache them instead. | |
58 | * There is no point in caching the reset register | |
59 | */ | |
60 | static const u16 wm8731_reg[WM8731_CACHEREGNUM] = { | |
17a52fd6 MB |
61 | 0x0097, 0x0097, 0x0079, 0x0079, |
62 | 0x000a, 0x0008, 0x009f, 0x000a, | |
63 | 0x0000, 0x0000 | |
40e0aa64 RP |
64 | }; |
65 | ||
17a52fd6 | 66 | #define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0) |
40e0aa64 RP |
67 | |
68 | static const char *wm8731_input_select[] = {"Line In", "Mic"}; | |
69 | static const char *wm8731_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; | |
70 | ||
71 | static const struct soc_enum wm8731_enum[] = { | |
72 | SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select), | |
73 | SOC_ENUM_SINGLE(WM8731_APDIGI, 1, 4, wm8731_deemph), | |
74 | }; | |
75 | ||
d00efa64 MB |
76 | static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0); |
77 | static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0); | |
78 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
79 | ||
40e0aa64 RP |
80 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { |
81 | ||
d00efa64 MB |
82 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
83 | 0, 127, 0, out_tlv), | |
bd903b6e LG |
84 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, |
85 | 7, 1, 0), | |
40e0aa64 | 86 | |
d00efa64 MB |
87 | SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0, |
88 | in_tlv), | |
40e0aa64 RP |
89 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), |
90 | ||
91 | SOC_SINGLE("Mic Boost (+20dB)", WM8731_APANA, 0, 1, 0), | |
ef38ed88 | 92 | SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1), |
40e0aa64 | 93 | |
d00efa64 MB |
94 | SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1, |
95 | sidetone_tlv), | |
40e0aa64 RP |
96 | |
97 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), | |
98 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), | |
99 | ||
100 | SOC_ENUM("Playback De-emphasis", wm8731_enum[1]), | |
101 | }; | |
102 | ||
40e0aa64 RP |
103 | /* Output Mixer */ |
104 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { | |
105 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), | |
106 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), | |
107 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), | |
108 | }; | |
109 | ||
110 | /* Input mux */ | |
111 | static const struct snd_kcontrol_new wm8731_input_mux_controls = | |
112 | SOC_DAPM_ENUM("Input Select", wm8731_enum[0]); | |
113 | ||
114 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
115 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, | |
116 | &wm8731_output_mixer_controls[0], | |
117 | ARRAY_SIZE(wm8731_output_mixer_controls)), | |
118 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), | |
119 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
120 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
121 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
122 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
123 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), | |
124 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), | |
125 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), | |
126 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), | |
127 | SND_SOC_DAPM_INPUT("MICIN"), | |
128 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
129 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
130 | }; | |
131 | ||
a65f0568 | 132 | static const struct snd_soc_dapm_route intercon[] = { |
40e0aa64 RP |
133 | /* output mixer */ |
134 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
135 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
136 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
137 | ||
138 | /* outputs */ | |
139 | {"RHPOUT", NULL, "Output Mixer"}, | |
140 | {"ROUT", NULL, "Output Mixer"}, | |
141 | {"LHPOUT", NULL, "Output Mixer"}, | |
142 | {"LOUT", NULL, "Output Mixer"}, | |
143 | ||
144 | /* input mux */ | |
145 | {"Input Mux", "Line In", "Line Input"}, | |
146 | {"Input Mux", "Mic", "Mic Bias"}, | |
147 | {"ADC", NULL, "Input Mux"}, | |
148 | ||
149 | /* inputs */ | |
150 | {"Line Input", NULL, "LLINEIN"}, | |
151 | {"Line Input", NULL, "RLINEIN"}, | |
152 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
153 | }; |
154 | ||
155 | static int wm8731_add_widgets(struct snd_soc_codec *codec) | |
156 | { | |
a65f0568 MB |
157 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
158 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
40e0aa64 | 159 | |
a65f0568 | 160 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); |
40e0aa64 | 161 | |
40e0aa64 RP |
162 | return 0; |
163 | } | |
164 | ||
165 | struct _coeff_div { | |
166 | u32 mclk; | |
167 | u32 rate; | |
168 | u16 fs; | |
169 | u8 sr:4; | |
170 | u8 bosr:1; | |
171 | u8 usb:1; | |
172 | }; | |
173 | ||
174 | /* codec mclk clock divider coefficients */ | |
175 | static const struct _coeff_div coeff_div[] = { | |
176 | /* 48k */ | |
177 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
178 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
179 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
180 | ||
181 | /* 32k */ | |
182 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
183 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 184 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
185 | |
186 | /* 8k */ | |
187 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
188 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
189 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
190 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
191 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
192 | ||
193 | /* 96k */ | |
194 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
195 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
196 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
197 | ||
198 | /* 44.1k */ | |
199 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
200 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
201 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
202 | ||
203 | /* 88.2k */ | |
204 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
205 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
206 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
207 | }; | |
208 | ||
209 | static inline int get_coeff(int mclk, int rate) | |
210 | { | |
211 | int i; | |
212 | ||
213 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
214 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
215 | return i; | |
216 | } | |
217 | return 0; | |
218 | } | |
219 | ||
b36d61d4 | 220 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
221 | struct snd_pcm_hw_params *params, |
222 | struct snd_soc_dai *dai) | |
40e0aa64 | 223 | { |
b36d61d4 FM |
224 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
225 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 226 | struct snd_soc_codec *codec = socdev->card->codec; |
b2c812e2 | 227 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 | 228 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
229 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
230 | u16 srate = (coeff_div[i].sr << 2) | | |
231 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 232 | |
17a52fd6 | 233 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
234 | |
235 | /* bit size */ | |
236 | switch (params_format(params)) { | |
237 | case SNDRV_PCM_FORMAT_S16_LE: | |
238 | break; | |
239 | case SNDRV_PCM_FORMAT_S20_3LE: | |
240 | iface |= 0x0004; | |
241 | break; | |
242 | case SNDRV_PCM_FORMAT_S24_LE: | |
243 | iface |= 0x0008; | |
244 | break; | |
245 | } | |
40e0aa64 | 246 | |
17a52fd6 | 247 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 248 | return 0; |
40e0aa64 RP |
249 | } |
250 | ||
dee89c4d MB |
251 | static int wm8731_pcm_prepare(struct snd_pcm_substream *substream, |
252 | struct snd_soc_dai *dai) | |
40e0aa64 RP |
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 | /* set active */ | |
17a52fd6 | 259 | snd_soc_write(codec, WM8731_ACTIVE, 0x0001); |
b36d61d4 FM |
260 | |
261 | return 0; | |
262 | } | |
263 | ||
dee89c4d MB |
264 | static void wm8731_shutdown(struct snd_pcm_substream *substream, |
265 | struct snd_soc_dai *dai) | |
b36d61d4 FM |
266 | { |
267 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
268 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 269 | struct snd_soc_codec *codec = socdev->card->codec; |
b36d61d4 FM |
270 | |
271 | /* deactivate */ | |
272 | if (!codec->active) { | |
273 | udelay(50); | |
17a52fd6 | 274 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
b36d61d4 FM |
275 | } |
276 | } | |
277 | ||
e550e17f | 278 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
279 | { |
280 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 281 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
282 | |
283 | if (mute) | |
17a52fd6 | 284 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 285 | else |
17a52fd6 | 286 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
287 | return 0; |
288 | } | |
289 | ||
e550e17f | 290 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
291 | int clk_id, unsigned int freq, int dir) |
292 | { | |
293 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 294 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
b36d61d4 FM |
295 | |
296 | switch (freq) { | |
297 | case 11289600: | |
298 | case 12000000: | |
299 | case 12288000: | |
300 | case 16934400: | |
301 | case 18432000: | |
302 | wm8731->sysclk = freq; | |
303 | return 0; | |
304 | } | |
305 | return -EINVAL; | |
306 | } | |
307 | ||
308 | ||
e550e17f | 309 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
310 | unsigned int fmt) |
311 | { | |
312 | struct snd_soc_codec *codec = codec_dai->codec; | |
313 | u16 iface = 0; | |
40e0aa64 RP |
314 | |
315 | /* set master/slave audio interface */ | |
b36d61d4 | 316 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
317 | case SND_SOC_DAIFMT_CBM_CFM: |
318 | iface |= 0x0040; | |
319 | break; | |
320 | case SND_SOC_DAIFMT_CBS_CFS: | |
321 | break; | |
b36d61d4 FM |
322 | default: |
323 | return -EINVAL; | |
40e0aa64 | 324 | } |
40e0aa64 RP |
325 | |
326 | /* interface format */ | |
b36d61d4 | 327 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
328 | case SND_SOC_DAIFMT_I2S: |
329 | iface |= 0x0002; | |
330 | break; | |
331 | case SND_SOC_DAIFMT_RIGHT_J: | |
332 | break; | |
333 | case SND_SOC_DAIFMT_LEFT_J: | |
334 | iface |= 0x0001; | |
335 | break; | |
336 | case SND_SOC_DAIFMT_DSP_A: | |
337 | iface |= 0x0003; | |
338 | break; | |
339 | case SND_SOC_DAIFMT_DSP_B: | |
340 | iface |= 0x0013; | |
341 | break; | |
b36d61d4 FM |
342 | default: |
343 | return -EINVAL; | |
40e0aa64 RP |
344 | } |
345 | ||
346 | /* clock inversion */ | |
b36d61d4 | 347 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
348 | case SND_SOC_DAIFMT_NB_NF: |
349 | break; | |
350 | case SND_SOC_DAIFMT_IB_IF: | |
351 | iface |= 0x0090; | |
352 | break; | |
353 | case SND_SOC_DAIFMT_IB_NF: | |
354 | iface |= 0x0080; | |
355 | break; | |
356 | case SND_SOC_DAIFMT_NB_IF: | |
357 | iface |= 0x0010; | |
358 | break; | |
b36d61d4 FM |
359 | default: |
360 | return -EINVAL; | |
40e0aa64 RP |
361 | } |
362 | ||
363 | /* set iface */ | |
17a52fd6 | 364 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
365 | return 0; |
366 | } | |
367 | ||
0be9898a MB |
368 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
369 | enum snd_soc_bias_level level) | |
40e0aa64 | 370 | { |
22d22ee5 | 371 | u16 reg; |
40e0aa64 | 372 | |
0be9898a MB |
373 | switch (level) { |
374 | case SND_SOC_BIAS_ON: | |
40e0aa64 | 375 | break; |
0be9898a | 376 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 377 | break; |
0be9898a | 378 | case SND_SOC_BIAS_STANDBY: |
22d22ee5 | 379 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
380 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
381 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 382 | break; |
0be9898a | 383 | case SND_SOC_BIAS_OFF: |
17a52fd6 MB |
384 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
385 | snd_soc_write(codec, WM8731_PWR, 0xffff); | |
40e0aa64 RP |
386 | break; |
387 | } | |
0be9898a | 388 | codec->bias_level = level; |
40e0aa64 RP |
389 | return 0; |
390 | } | |
391 | ||
e135443e | 392 | #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 |
b36d61d4 FM |
393 | |
394 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
395 | SNDRV_PCM_FMTBIT_S24_LE) | |
396 | ||
6335d055 EM |
397 | static struct snd_soc_dai_ops wm8731_dai_ops = { |
398 | .prepare = wm8731_pcm_prepare, | |
399 | .hw_params = wm8731_hw_params, | |
400 | .shutdown = wm8731_shutdown, | |
401 | .digital_mute = wm8731_mute, | |
402 | .set_sysclk = wm8731_set_dai_sysclk, | |
403 | .set_fmt = wm8731_set_dai_fmt, | |
404 | }; | |
405 | ||
e550e17f | 406 | struct snd_soc_dai wm8731_dai = { |
40e0aa64 RP |
407 | .name = "WM8731", |
408 | .playback = { | |
409 | .stream_name = "Playback", | |
410 | .channels_min = 1, | |
411 | .channels_max = 2, | |
b36d61d4 FM |
412 | .rates = WM8731_RATES, |
413 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
414 | .capture = { |
415 | .stream_name = "Capture", | |
416 | .channels_min = 1, | |
417 | .channels_max = 2, | |
b36d61d4 FM |
418 | .rates = WM8731_RATES, |
419 | .formats = WM8731_FORMATS,}, | |
6335d055 | 420 | .ops = &wm8731_dai_ops, |
4934482d | 421 | .symmetric_rates = 1, |
40e0aa64 RP |
422 | }; |
423 | EXPORT_SYMBOL_GPL(wm8731_dai); | |
424 | ||
b3b50b3f | 425 | #ifdef CONFIG_PM |
40e0aa64 RP |
426 | static int wm8731_suspend(struct platform_device *pdev, pm_message_t state) |
427 | { | |
428 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 429 | struct snd_soc_codec *codec = socdev->card->codec; |
b2c812e2 | 430 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
40e0aa64 | 431 | |
17a52fd6 | 432 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
0be9898a | 433 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
7dea7c01 MB |
434 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
435 | wm8731->supplies); | |
40e0aa64 RP |
436 | return 0; |
437 | } | |
438 | ||
439 | static int wm8731_resume(struct platform_device *pdev) | |
440 | { | |
441 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 442 | struct snd_soc_codec *codec = socdev->card->codec; |
b2c812e2 | 443 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
7dea7c01 | 444 | int i, ret; |
40e0aa64 RP |
445 | u8 data[2]; |
446 | u16 *cache = codec->reg_cache; | |
447 | ||
7dea7c01 MB |
448 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
449 | wm8731->supplies); | |
450 | if (ret != 0) | |
451 | return ret; | |
452 | ||
40e0aa64 RP |
453 | /* Sync reg_cache with the hardware */ |
454 | for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) { | |
d11c5ab1 MB |
455 | if (cache[i] == wm8731_reg[i]) |
456 | continue; | |
457 | ||
40e0aa64 RP |
458 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); |
459 | data[1] = cache[i] & 0x00ff; | |
460 | codec->hw_write(codec->control_data, data, 2); | |
461 | } | |
0be9898a | 462 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
7dea7c01 | 463 | |
40e0aa64 RP |
464 | return 0; |
465 | } | |
b3b50b3f MB |
466 | #else |
467 | #define wm8731_suspend NULL | |
468 | #define wm8731_resume NULL | |
469 | #endif | |
40e0aa64 | 470 | |
5998102b | 471 | static int wm8731_probe(struct platform_device *pdev) |
40e0aa64 | 472 | { |
5998102b MB |
473 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
474 | struct snd_soc_codec *codec; | |
475 | int ret = 0; | |
40e0aa64 | 476 | |
5998102b MB |
477 | if (wm8731_codec == NULL) { |
478 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
479 | return -ENODEV; | |
480 | } | |
40e0aa64 | 481 | |
5998102b MB |
482 | socdev->card->codec = wm8731_codec; |
483 | codec = wm8731_codec; | |
40e0aa64 RP |
484 | |
485 | /* register pcms */ | |
486 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
487 | if (ret < 0) { | |
5998102b | 488 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); |
e35115a5 | 489 | goto pcm_err; |
40e0aa64 RP |
490 | } |
491 | ||
3e8e1952 | 492 | snd_soc_add_controls(codec, wm8731_snd_controls, |
5998102b | 493 | ARRAY_SIZE(wm8731_snd_controls)); |
40e0aa64 | 494 | wm8731_add_widgets(codec); |
40e0aa64 RP |
495 | |
496 | return ret; | |
e35115a5 | 497 | |
e35115a5 | 498 | pcm_err: |
40e0aa64 RP |
499 | return ret; |
500 | } | |
501 | ||
502 | /* power down chip */ | |
503 | static int wm8731_remove(struct platform_device *pdev) | |
504 | { | |
505 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
40e0aa64 RP |
506 | |
507 | snd_soc_free_pcms(socdev); | |
508 | snd_soc_dapm_free(socdev); | |
40e0aa64 RP |
509 | |
510 | return 0; | |
511 | } | |
512 | ||
513 | struct snd_soc_codec_device soc_codec_dev_wm8731 = { | |
514 | .probe = wm8731_probe, | |
515 | .remove = wm8731_remove, | |
516 | .suspend = wm8731_suspend, | |
517 | .resume = wm8731_resume, | |
518 | }; | |
40e0aa64 RP |
519 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8731); |
520 | ||
7084a42b MB |
521 | static int wm8731_register(struct wm8731_priv *wm8731, |
522 | enum snd_soc_control_type control) | |
a8035c8f | 523 | { |
7dea7c01 | 524 | int ret, i; |
5998102b | 525 | struct snd_soc_codec *codec = &wm8731->codec; |
a8035c8f | 526 | |
5998102b MB |
527 | if (wm8731_codec) { |
528 | dev_err(codec->dev, "Another WM8731 is registered\n"); | |
fe5422fc MB |
529 | ret = -EINVAL; |
530 | goto err; | |
5998102b | 531 | } |
a8035c8f | 532 | |
5998102b MB |
533 | mutex_init(&codec->mutex); |
534 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
535 | INIT_LIST_HEAD(&codec->dapm_paths); | |
a8035c8f | 536 | |
b2c812e2 | 537 | snd_soc_codec_set_drvdata(codec, wm8731); |
5998102b MB |
538 | codec->name = "WM8731"; |
539 | codec->owner = THIS_MODULE; | |
5998102b MB |
540 | codec->bias_level = SND_SOC_BIAS_OFF; |
541 | codec->set_bias_level = wm8731_set_bias_level; | |
542 | codec->dai = &wm8731_dai; | |
543 | codec->num_dai = 1; | |
544 | codec->reg_cache_size = WM8731_CACHEREGNUM; | |
545 | codec->reg_cache = &wm8731->reg_cache; | |
546 | ||
547 | memcpy(codec->reg_cache, wm8731_reg, sizeof(wm8731_reg)); | |
548 | ||
7084a42b | 549 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); |
17a52fd6 MB |
550 | if (ret < 0) { |
551 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
552 | goto err; | |
553 | } | |
554 | ||
7dea7c01 MB |
555 | for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++) |
556 | wm8731->supplies[i].supply = wm8731_supply_names[i]; | |
557 | ||
558 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8731->supplies), | |
559 | wm8731->supplies); | |
560 | if (ret != 0) { | |
561 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
562 | goto err; | |
563 | } | |
564 | ||
565 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), | |
566 | wm8731->supplies); | |
567 | if (ret != 0) { | |
568 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
569 | goto err_regulator_get; | |
570 | } | |
571 | ||
519cf2df MB |
572 | ret = wm8731_reset(codec); |
573 | if (ret < 0) { | |
fe5422fc | 574 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
7dea7c01 | 575 | goto err_regulator_enable; |
519cf2df MB |
576 | } |
577 | ||
5998102b MB |
578 | wm8731_dai.dev = codec->dev; |
579 | ||
5998102b MB |
580 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
581 | ||
582 | /* Latch the update bits */ | |
17a52fd6 MB |
583 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
584 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); | |
585 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); | |
586 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); | |
5998102b | 587 | |
ce3bdaa8 | 588 | /* Disable bypass path by default */ |
17a52fd6 | 589 | snd_soc_update_bits(codec, WM8731_APANA, 0x4, 0); |
ce3bdaa8 | 590 | |
5998102b MB |
591 | wm8731_codec = codec; |
592 | ||
593 | ret = snd_soc_register_codec(codec); | |
594 | if (ret != 0) { | |
595 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
7dea7c01 | 596 | goto err_regulator_enable; |
5998102b MB |
597 | } |
598 | ||
599 | ret = snd_soc_register_dai(&wm8731_dai); | |
600 | if (ret != 0) { | |
601 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
602 | snd_soc_unregister_codec(codec); | |
fe5422fc | 603 | goto err_codec; |
5998102b | 604 | } |
a8035c8f | 605 | |
a8035c8f | 606 | return 0; |
fe5422fc MB |
607 | |
608 | err_codec: | |
609 | snd_soc_unregister_codec(codec); | |
7dea7c01 MB |
610 | err_regulator_enable: |
611 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
612 | err_regulator_get: | |
613 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
fe5422fc MB |
614 | err: |
615 | kfree(wm8731); | |
616 | return ret; | |
a8035c8f MB |
617 | } |
618 | ||
5998102b MB |
619 | static void wm8731_unregister(struct wm8731_priv *wm8731) |
620 | { | |
621 | wm8731_set_bias_level(&wm8731->codec, SND_SOC_BIAS_OFF); | |
622 | snd_soc_unregister_dai(&wm8731_dai); | |
623 | snd_soc_unregister_codec(&wm8731->codec); | |
7dea7c01 MB |
624 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
625 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
5998102b MB |
626 | kfree(wm8731); |
627 | wm8731_codec = NULL; | |
628 | } | |
a8035c8f | 629 | |
5998102b | 630 | #if defined(CONFIG_SPI_MASTER) |
5998102b MB |
631 | static int __devinit wm8731_spi_probe(struct spi_device *spi) |
632 | { | |
633 | struct snd_soc_codec *codec; | |
634 | struct wm8731_priv *wm8731; | |
635 | ||
636 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); | |
637 | if (wm8731 == NULL) | |
638 | return -ENOMEM; | |
639 | ||
640 | codec = &wm8731->codec; | |
641 | codec->control_data = spi; | |
5998102b MB |
642 | codec->dev = &spi->dev; |
643 | ||
ae31c1fb | 644 | dev_set_drvdata(&spi->dev, wm8731); |
93b760b7 | 645 | |
7084a42b | 646 | return wm8731_register(wm8731, SND_SOC_SPI); |
5998102b MB |
647 | } |
648 | ||
649 | static int __devexit wm8731_spi_remove(struct spi_device *spi) | |
650 | { | |
ae31c1fb | 651 | struct wm8731_priv *wm8731 = dev_get_drvdata(&spi->dev); |
93b760b7 MB |
652 | |
653 | wm8731_unregister(wm8731); | |
654 | ||
5998102b MB |
655 | return 0; |
656 | } | |
657 | ||
658 | static struct spi_driver wm8731_spi_driver = { | |
659 | .driver = { | |
660 | .name = "wm8731", | |
661 | .bus = &spi_bus_type, | |
662 | .owner = THIS_MODULE, | |
663 | }, | |
664 | .probe = wm8731_spi_probe, | |
665 | .remove = __devexit_p(wm8731_spi_remove), | |
666 | }; | |
a8035c8f MB |
667 | #endif /* CONFIG_SPI_MASTER */ |
668 | ||
669 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
c6f29811 MB |
670 | static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, |
671 | const struct i2c_device_id *id) | |
a8035c8f | 672 | { |
5998102b MB |
673 | struct wm8731_priv *wm8731; |
674 | struct snd_soc_codec *codec; | |
a8035c8f | 675 | |
5998102b MB |
676 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
677 | if (wm8731 == NULL) | |
678 | return -ENOMEM; | |
679 | ||
680 | codec = &wm8731->codec; | |
5998102b MB |
681 | |
682 | i2c_set_clientdata(i2c, wm8731); | |
a8035c8f MB |
683 | codec->control_data = i2c; |
684 | ||
5998102b | 685 | codec->dev = &i2c->dev; |
a8035c8f | 686 | |
7084a42b | 687 | return wm8731_register(wm8731, SND_SOC_I2C); |
a8035c8f MB |
688 | } |
689 | ||
c6f29811 | 690 | static __devexit int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 691 | { |
5998102b MB |
692 | struct wm8731_priv *wm8731 = i2c_get_clientdata(client); |
693 | wm8731_unregister(wm8731); | |
a8035c8f MB |
694 | return 0; |
695 | } | |
696 | ||
697 | static const struct i2c_device_id wm8731_i2c_id[] = { | |
698 | { "wm8731", 0 }, | |
699 | { } | |
700 | }; | |
701 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
702 | ||
703 | static struct i2c_driver wm8731_i2c_driver = { | |
704 | .driver = { | |
705 | .name = "WM8731 I2C Codec", | |
706 | .owner = THIS_MODULE, | |
707 | }, | |
708 | .probe = wm8731_i2c_probe, | |
c6f29811 | 709 | .remove = __devexit_p(wm8731_i2c_remove), |
a8035c8f MB |
710 | .id_table = wm8731_i2c_id, |
711 | }; | |
712 | #endif | |
713 | ||
c9b3a40f | 714 | static int __init wm8731_modinit(void) |
64089b84 | 715 | { |
5998102b MB |
716 | int ret; |
717 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
718 | ret = i2c_add_driver(&wm8731_i2c_driver); | |
719 | if (ret != 0) { | |
720 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
721 | ret); | |
722 | } | |
723 | #endif | |
724 | #if defined(CONFIG_SPI_MASTER) | |
725 | ret = spi_register_driver(&wm8731_spi_driver); | |
726 | if (ret != 0) { | |
727 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
728 | ret); | |
729 | } | |
730 | #endif | |
731 | return 0; | |
64089b84 MB |
732 | } |
733 | module_init(wm8731_modinit); | |
734 | ||
735 | static void __exit wm8731_exit(void) | |
736 | { | |
5998102b MB |
737 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
738 | i2c_del_driver(&wm8731_i2c_driver); | |
739 | #endif | |
740 | #if defined(CONFIG_SPI_MASTER) | |
741 | spi_unregister_driver(&wm8731_spi_driver); | |
742 | #endif | |
64089b84 MB |
743 | } |
744 | module_exit(wm8731_exit); | |
745 | ||
40e0aa64 RP |
746 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
747 | MODULE_AUTHOR("Richard Purdie"); | |
748 | MODULE_LICENSE("GPL"); |