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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> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
40e0aa64 | 22 | #include <linux/platform_device.h> |
7dea7c01 | 23 | #include <linux/regulator/consumer.h> |
d2a40355 | 24 | #include <linux/spi/spi.h> |
40e0aa64 RP |
25 | #include <sound/core.h> |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
29 | #include <sound/soc-dapm.h> | |
30 | #include <sound/initval.h> | |
d00efa64 | 31 | #include <sound/tlv.h> |
40e0aa64 RP |
32 | |
33 | #include "wm8731.h" | |
34 | ||
5998102b | 35 | static struct snd_soc_codec *wm8731_codec; |
40e0aa64 RP |
36 | struct snd_soc_codec_device soc_codec_dev_wm8731; |
37 | ||
7dea7c01 MB |
38 | #define WM8731_NUM_SUPPLIES 4 |
39 | static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { | |
40 | "AVDD", | |
41 | "HPVDD", | |
42 | "DCVDD", | |
43 | "DBVDD", | |
44 | }; | |
45 | ||
b36d61d4 FM |
46 | /* codec private data */ |
47 | struct wm8731_priv { | |
5998102b | 48 | struct snd_soc_codec codec; |
7dea7c01 | 49 | struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; |
5998102b | 50 | u16 reg_cache[WM8731_CACHEREGNUM]; |
b36d61d4 FM |
51 | unsigned int sysclk; |
52 | }; | |
53 | ||
a8035c8f | 54 | |
40e0aa64 RP |
55 | /* |
56 | * wm8731 register cache | |
57 | * We can't read the WM8731 register space when we are | |
58 | * using 2 wire for device control, so we cache them instead. | |
59 | * There is no point in caching the reset register | |
60 | */ | |
61 | static const u16 wm8731_reg[WM8731_CACHEREGNUM] = { | |
17a52fd6 MB |
62 | 0x0097, 0x0097, 0x0079, 0x0079, |
63 | 0x000a, 0x0008, 0x009f, 0x000a, | |
64 | 0x0000, 0x0000 | |
40e0aa64 RP |
65 | }; |
66 | ||
17a52fd6 | 67 | #define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0) |
40e0aa64 RP |
68 | |
69 | static const char *wm8731_input_select[] = {"Line In", "Mic"}; | |
70 | static const char *wm8731_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; | |
71 | ||
72 | static const struct soc_enum wm8731_enum[] = { | |
73 | SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select), | |
74 | SOC_ENUM_SINGLE(WM8731_APDIGI, 1, 4, wm8731_deemph), | |
75 | }; | |
76 | ||
d00efa64 MB |
77 | static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0); |
78 | static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0); | |
79 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
80 | ||
40e0aa64 RP |
81 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { |
82 | ||
d00efa64 MB |
83 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
84 | 0, 127, 0, out_tlv), | |
bd903b6e LG |
85 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, |
86 | 7, 1, 0), | |
40e0aa64 | 87 | |
d00efa64 MB |
88 | SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0, |
89 | in_tlv), | |
40e0aa64 RP |
90 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), |
91 | ||
92 | SOC_SINGLE("Mic Boost (+20dB)", WM8731_APANA, 0, 1, 0), | |
ef38ed88 | 93 | SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1), |
40e0aa64 | 94 | |
d00efa64 MB |
95 | SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1, |
96 | sidetone_tlv), | |
40e0aa64 RP |
97 | |
98 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), | |
99 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), | |
100 | ||
101 | SOC_ENUM("Playback De-emphasis", wm8731_enum[1]), | |
102 | }; | |
103 | ||
40e0aa64 RP |
104 | /* Output Mixer */ |
105 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { | |
106 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), | |
107 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), | |
108 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), | |
109 | }; | |
110 | ||
111 | /* Input mux */ | |
112 | static const struct snd_kcontrol_new wm8731_input_mux_controls = | |
113 | SOC_DAPM_ENUM("Input Select", wm8731_enum[0]); | |
114 | ||
115 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
116 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, | |
117 | &wm8731_output_mixer_controls[0], | |
118 | ARRAY_SIZE(wm8731_output_mixer_controls)), | |
119 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), | |
120 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
121 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
122 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
123 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
124 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), | |
125 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), | |
126 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), | |
127 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), | |
128 | SND_SOC_DAPM_INPUT("MICIN"), | |
129 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
130 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
131 | }; | |
132 | ||
a65f0568 | 133 | static const struct snd_soc_dapm_route intercon[] = { |
40e0aa64 RP |
134 | /* output mixer */ |
135 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
136 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
137 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
138 | ||
139 | /* outputs */ | |
140 | {"RHPOUT", NULL, "Output Mixer"}, | |
141 | {"ROUT", NULL, "Output Mixer"}, | |
142 | {"LHPOUT", NULL, "Output Mixer"}, | |
143 | {"LOUT", NULL, "Output Mixer"}, | |
144 | ||
145 | /* input mux */ | |
146 | {"Input Mux", "Line In", "Line Input"}, | |
147 | {"Input Mux", "Mic", "Mic Bias"}, | |
148 | {"ADC", NULL, "Input Mux"}, | |
149 | ||
150 | /* inputs */ | |
151 | {"Line Input", NULL, "LLINEIN"}, | |
152 | {"Line Input", NULL, "RLINEIN"}, | |
153 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
154 | }; |
155 | ||
156 | static int wm8731_add_widgets(struct snd_soc_codec *codec) | |
157 | { | |
a65f0568 MB |
158 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
159 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
40e0aa64 | 160 | |
a65f0568 | 161 | snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); |
40e0aa64 | 162 | |
40e0aa64 RP |
163 | return 0; |
164 | } | |
165 | ||
166 | struct _coeff_div { | |
167 | u32 mclk; | |
168 | u32 rate; | |
169 | u16 fs; | |
170 | u8 sr:4; | |
171 | u8 bosr:1; | |
172 | u8 usb:1; | |
173 | }; | |
174 | ||
175 | /* codec mclk clock divider coefficients */ | |
176 | static const struct _coeff_div coeff_div[] = { | |
177 | /* 48k */ | |
178 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
179 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
180 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
181 | ||
182 | /* 32k */ | |
183 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
184 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 185 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
186 | |
187 | /* 8k */ | |
188 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
189 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
190 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
191 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
192 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
193 | ||
194 | /* 96k */ | |
195 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
196 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
197 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
198 | ||
199 | /* 44.1k */ | |
200 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
201 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
202 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
203 | ||
204 | /* 88.2k */ | |
205 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
206 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
207 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
208 | }; | |
209 | ||
210 | static inline int get_coeff(int mclk, int rate) | |
211 | { | |
212 | int i; | |
213 | ||
214 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
215 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
216 | return i; | |
217 | } | |
218 | return 0; | |
219 | } | |
220 | ||
b36d61d4 | 221 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
222 | struct snd_pcm_hw_params *params, |
223 | struct snd_soc_dai *dai) | |
40e0aa64 | 224 | { |
b36d61d4 FM |
225 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
226 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 227 | struct snd_soc_codec *codec = socdev->card->codec; |
b36d61d4 | 228 | struct wm8731_priv *wm8731 = codec->private_data; |
17a52fd6 | 229 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
230 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
231 | u16 srate = (coeff_div[i].sr << 2) | | |
232 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 233 | |
17a52fd6 | 234 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
235 | |
236 | /* bit size */ | |
237 | switch (params_format(params)) { | |
238 | case SNDRV_PCM_FORMAT_S16_LE: | |
239 | break; | |
240 | case SNDRV_PCM_FORMAT_S20_3LE: | |
241 | iface |= 0x0004; | |
242 | break; | |
243 | case SNDRV_PCM_FORMAT_S24_LE: | |
244 | iface |= 0x0008; | |
245 | break; | |
246 | } | |
40e0aa64 | 247 | |
17a52fd6 | 248 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 249 | return 0; |
40e0aa64 RP |
250 | } |
251 | ||
dee89c4d MB |
252 | static int wm8731_pcm_prepare(struct snd_pcm_substream *substream, |
253 | struct snd_soc_dai *dai) | |
40e0aa64 RP |
254 | { |
255 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
256 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 257 | struct snd_soc_codec *codec = socdev->card->codec; |
b36d61d4 FM |
258 | |
259 | /* set active */ | |
17a52fd6 | 260 | snd_soc_write(codec, WM8731_ACTIVE, 0x0001); |
b36d61d4 FM |
261 | |
262 | return 0; | |
263 | } | |
264 | ||
dee89c4d MB |
265 | static void wm8731_shutdown(struct snd_pcm_substream *substream, |
266 | struct snd_soc_dai *dai) | |
b36d61d4 FM |
267 | { |
268 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
269 | struct snd_soc_device *socdev = rtd->socdev; | |
6627a653 | 270 | struct snd_soc_codec *codec = socdev->card->codec; |
b36d61d4 FM |
271 | |
272 | /* deactivate */ | |
273 | if (!codec->active) { | |
274 | udelay(50); | |
17a52fd6 | 275 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
b36d61d4 FM |
276 | } |
277 | } | |
278 | ||
e550e17f | 279 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
280 | { |
281 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 282 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
283 | |
284 | if (mute) | |
17a52fd6 | 285 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 286 | else |
17a52fd6 | 287 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
288 | return 0; |
289 | } | |
290 | ||
e550e17f | 291 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
292 | int clk_id, unsigned int freq, int dir) |
293 | { | |
294 | struct snd_soc_codec *codec = codec_dai->codec; | |
295 | struct wm8731_priv *wm8731 = codec->private_data; | |
296 | ||
297 | switch (freq) { | |
298 | case 11289600: | |
299 | case 12000000: | |
300 | case 12288000: | |
301 | case 16934400: | |
302 | case 18432000: | |
303 | wm8731->sysclk = freq; | |
304 | return 0; | |
305 | } | |
306 | return -EINVAL; | |
307 | } | |
308 | ||
309 | ||
e550e17f | 310 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
311 | unsigned int fmt) |
312 | { | |
313 | struct snd_soc_codec *codec = codec_dai->codec; | |
314 | u16 iface = 0; | |
40e0aa64 RP |
315 | |
316 | /* set master/slave audio interface */ | |
b36d61d4 | 317 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
318 | case SND_SOC_DAIFMT_CBM_CFM: |
319 | iface |= 0x0040; | |
320 | break; | |
321 | case SND_SOC_DAIFMT_CBS_CFS: | |
322 | break; | |
b36d61d4 FM |
323 | default: |
324 | return -EINVAL; | |
40e0aa64 | 325 | } |
40e0aa64 RP |
326 | |
327 | /* interface format */ | |
b36d61d4 | 328 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
329 | case SND_SOC_DAIFMT_I2S: |
330 | iface |= 0x0002; | |
331 | break; | |
332 | case SND_SOC_DAIFMT_RIGHT_J: | |
333 | break; | |
334 | case SND_SOC_DAIFMT_LEFT_J: | |
335 | iface |= 0x0001; | |
336 | break; | |
337 | case SND_SOC_DAIFMT_DSP_A: | |
338 | iface |= 0x0003; | |
339 | break; | |
340 | case SND_SOC_DAIFMT_DSP_B: | |
341 | iface |= 0x0013; | |
342 | break; | |
b36d61d4 FM |
343 | default: |
344 | return -EINVAL; | |
40e0aa64 RP |
345 | } |
346 | ||
347 | /* clock inversion */ | |
b36d61d4 | 348 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
349 | case SND_SOC_DAIFMT_NB_NF: |
350 | break; | |
351 | case SND_SOC_DAIFMT_IB_IF: | |
352 | iface |= 0x0090; | |
353 | break; | |
354 | case SND_SOC_DAIFMT_IB_NF: | |
355 | iface |= 0x0080; | |
356 | break; | |
357 | case SND_SOC_DAIFMT_NB_IF: | |
358 | iface |= 0x0010; | |
359 | break; | |
b36d61d4 FM |
360 | default: |
361 | return -EINVAL; | |
40e0aa64 RP |
362 | } |
363 | ||
364 | /* set iface */ | |
17a52fd6 | 365 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
366 | return 0; |
367 | } | |
368 | ||
0be9898a MB |
369 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
370 | enum snd_soc_bias_level level) | |
40e0aa64 | 371 | { |
22d22ee5 | 372 | u16 reg; |
40e0aa64 | 373 | |
0be9898a MB |
374 | switch (level) { |
375 | case SND_SOC_BIAS_ON: | |
40e0aa64 | 376 | break; |
0be9898a | 377 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 378 | break; |
0be9898a | 379 | case SND_SOC_BIAS_STANDBY: |
22d22ee5 | 380 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
381 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
382 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 383 | break; |
0be9898a | 384 | case SND_SOC_BIAS_OFF: |
17a52fd6 MB |
385 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
386 | snd_soc_write(codec, WM8731_PWR, 0xffff); | |
40e0aa64 RP |
387 | break; |
388 | } | |
0be9898a | 389 | codec->bias_level = level; |
40e0aa64 RP |
390 | return 0; |
391 | } | |
392 | ||
b36d61d4 FM |
393 | #define WM8731_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
394 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ | |
395 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ | |
396 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ | |
397 | SNDRV_PCM_RATE_96000) | |
398 | ||
399 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
400 | SNDRV_PCM_FMTBIT_S24_LE) | |
401 | ||
6335d055 EM |
402 | static struct snd_soc_dai_ops wm8731_dai_ops = { |
403 | .prepare = wm8731_pcm_prepare, | |
404 | .hw_params = wm8731_hw_params, | |
405 | .shutdown = wm8731_shutdown, | |
406 | .digital_mute = wm8731_mute, | |
407 | .set_sysclk = wm8731_set_dai_sysclk, | |
408 | .set_fmt = wm8731_set_dai_fmt, | |
409 | }; | |
410 | ||
e550e17f | 411 | struct snd_soc_dai wm8731_dai = { |
40e0aa64 RP |
412 | .name = "WM8731", |
413 | .playback = { | |
414 | .stream_name = "Playback", | |
415 | .channels_min = 1, | |
416 | .channels_max = 2, | |
b36d61d4 FM |
417 | .rates = WM8731_RATES, |
418 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
419 | .capture = { |
420 | .stream_name = "Capture", | |
421 | .channels_min = 1, | |
422 | .channels_max = 2, | |
b36d61d4 FM |
423 | .rates = WM8731_RATES, |
424 | .formats = WM8731_FORMATS,}, | |
6335d055 | 425 | .ops = &wm8731_dai_ops, |
4934482d | 426 | .symmetric_rates = 1, |
40e0aa64 RP |
427 | }; |
428 | EXPORT_SYMBOL_GPL(wm8731_dai); | |
429 | ||
b3b50b3f | 430 | #ifdef CONFIG_PM |
40e0aa64 RP |
431 | static int wm8731_suspend(struct platform_device *pdev, pm_message_t state) |
432 | { | |
433 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 434 | struct snd_soc_codec *codec = socdev->card->codec; |
7dea7c01 | 435 | struct wm8731_priv *wm8731 = codec->private_data; |
40e0aa64 | 436 | |
17a52fd6 | 437 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
0be9898a | 438 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
7dea7c01 MB |
439 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
440 | wm8731->supplies); | |
40e0aa64 RP |
441 | return 0; |
442 | } | |
443 | ||
444 | static int wm8731_resume(struct platform_device *pdev) | |
445 | { | |
446 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
6627a653 | 447 | struct snd_soc_codec *codec = socdev->card->codec; |
7dea7c01 MB |
448 | struct wm8731_priv *wm8731 = codec->private_data; |
449 | int i, ret; | |
40e0aa64 RP |
450 | u8 data[2]; |
451 | u16 *cache = codec->reg_cache; | |
452 | ||
7dea7c01 MB |
453 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
454 | wm8731->supplies); | |
455 | if (ret != 0) | |
456 | return ret; | |
457 | ||
40e0aa64 RP |
458 | /* Sync reg_cache with the hardware */ |
459 | for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) { | |
d11c5ab1 MB |
460 | if (cache[i] == wm8731_reg[i]) |
461 | continue; | |
462 | ||
40e0aa64 RP |
463 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); |
464 | data[1] = cache[i] & 0x00ff; | |
465 | codec->hw_write(codec->control_data, data, 2); | |
466 | } | |
0be9898a MB |
467 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
468 | wm8731_set_bias_level(codec, codec->suspend_bias_level); | |
7dea7c01 | 469 | |
40e0aa64 RP |
470 | return 0; |
471 | } | |
b3b50b3f MB |
472 | #else |
473 | #define wm8731_suspend NULL | |
474 | #define wm8731_resume NULL | |
475 | #endif | |
40e0aa64 | 476 | |
5998102b | 477 | static int wm8731_probe(struct platform_device *pdev) |
40e0aa64 | 478 | { |
5998102b MB |
479 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); |
480 | struct snd_soc_codec *codec; | |
481 | int ret = 0; | |
40e0aa64 | 482 | |
5998102b MB |
483 | if (wm8731_codec == NULL) { |
484 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
485 | return -ENODEV; | |
486 | } | |
40e0aa64 | 487 | |
5998102b MB |
488 | socdev->card->codec = wm8731_codec; |
489 | codec = wm8731_codec; | |
40e0aa64 RP |
490 | |
491 | /* register pcms */ | |
492 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
493 | if (ret < 0) { | |
5998102b | 494 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); |
e35115a5 | 495 | goto pcm_err; |
40e0aa64 RP |
496 | } |
497 | ||
3e8e1952 | 498 | snd_soc_add_controls(codec, wm8731_snd_controls, |
5998102b | 499 | ARRAY_SIZE(wm8731_snd_controls)); |
40e0aa64 | 500 | wm8731_add_widgets(codec); |
40e0aa64 RP |
501 | |
502 | return ret; | |
e35115a5 | 503 | |
e35115a5 | 504 | pcm_err: |
40e0aa64 RP |
505 | return ret; |
506 | } | |
507 | ||
508 | /* power down chip */ | |
509 | static int wm8731_remove(struct platform_device *pdev) | |
510 | { | |
511 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
40e0aa64 RP |
512 | |
513 | snd_soc_free_pcms(socdev); | |
514 | snd_soc_dapm_free(socdev); | |
40e0aa64 RP |
515 | |
516 | return 0; | |
517 | } | |
518 | ||
519 | struct snd_soc_codec_device soc_codec_dev_wm8731 = { | |
520 | .probe = wm8731_probe, | |
521 | .remove = wm8731_remove, | |
522 | .suspend = wm8731_suspend, | |
523 | .resume = wm8731_resume, | |
524 | }; | |
40e0aa64 RP |
525 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8731); |
526 | ||
7084a42b MB |
527 | static int wm8731_register(struct wm8731_priv *wm8731, |
528 | enum snd_soc_control_type control) | |
a8035c8f | 529 | { |
7dea7c01 | 530 | int ret, i; |
5998102b | 531 | struct snd_soc_codec *codec = &wm8731->codec; |
a8035c8f | 532 | |
5998102b MB |
533 | if (wm8731_codec) { |
534 | dev_err(codec->dev, "Another WM8731 is registered\n"); | |
fe5422fc MB |
535 | ret = -EINVAL; |
536 | goto err; | |
5998102b | 537 | } |
a8035c8f | 538 | |
5998102b MB |
539 | mutex_init(&codec->mutex); |
540 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
541 | INIT_LIST_HEAD(&codec->dapm_paths); | |
a8035c8f | 542 | |
5998102b MB |
543 | codec->private_data = wm8731; |
544 | codec->name = "WM8731"; | |
545 | codec->owner = THIS_MODULE; | |
5998102b MB |
546 | codec->bias_level = SND_SOC_BIAS_OFF; |
547 | codec->set_bias_level = wm8731_set_bias_level; | |
548 | codec->dai = &wm8731_dai; | |
549 | codec->num_dai = 1; | |
550 | codec->reg_cache_size = WM8731_CACHEREGNUM; | |
551 | codec->reg_cache = &wm8731->reg_cache; | |
552 | ||
553 | memcpy(codec->reg_cache, wm8731_reg, sizeof(wm8731_reg)); | |
554 | ||
7084a42b | 555 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); |
17a52fd6 MB |
556 | if (ret < 0) { |
557 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
558 | goto err; | |
559 | } | |
560 | ||
7dea7c01 MB |
561 | for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++) |
562 | wm8731->supplies[i].supply = wm8731_supply_names[i]; | |
563 | ||
564 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8731->supplies), | |
565 | wm8731->supplies); | |
566 | if (ret != 0) { | |
567 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
568 | goto err; | |
569 | } | |
570 | ||
571 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), | |
572 | wm8731->supplies); | |
573 | if (ret != 0) { | |
574 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
575 | goto err_regulator_get; | |
576 | } | |
577 | ||
519cf2df MB |
578 | ret = wm8731_reset(codec); |
579 | if (ret < 0) { | |
fe5422fc | 580 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
7dea7c01 | 581 | goto err_regulator_enable; |
519cf2df MB |
582 | } |
583 | ||
5998102b MB |
584 | wm8731_dai.dev = codec->dev; |
585 | ||
5998102b MB |
586 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
587 | ||
588 | /* Latch the update bits */ | |
17a52fd6 MB |
589 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
590 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); | |
591 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); | |
592 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); | |
5998102b | 593 | |
ce3bdaa8 | 594 | /* Disable bypass path by default */ |
17a52fd6 | 595 | snd_soc_update_bits(codec, WM8731_APANA, 0x4, 0); |
ce3bdaa8 | 596 | |
5998102b MB |
597 | wm8731_codec = codec; |
598 | ||
599 | ret = snd_soc_register_codec(codec); | |
600 | if (ret != 0) { | |
601 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
7dea7c01 | 602 | goto err_regulator_enable; |
5998102b MB |
603 | } |
604 | ||
605 | ret = snd_soc_register_dai(&wm8731_dai); | |
606 | if (ret != 0) { | |
607 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
608 | snd_soc_unregister_codec(codec); | |
fe5422fc | 609 | goto err_codec; |
5998102b | 610 | } |
a8035c8f | 611 | |
a8035c8f | 612 | return 0; |
fe5422fc MB |
613 | |
614 | err_codec: | |
615 | snd_soc_unregister_codec(codec); | |
7dea7c01 MB |
616 | err_regulator_enable: |
617 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
618 | err_regulator_get: | |
619 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
fe5422fc MB |
620 | err: |
621 | kfree(wm8731); | |
622 | return ret; | |
a8035c8f MB |
623 | } |
624 | ||
5998102b MB |
625 | static void wm8731_unregister(struct wm8731_priv *wm8731) |
626 | { | |
627 | wm8731_set_bias_level(&wm8731->codec, SND_SOC_BIAS_OFF); | |
628 | snd_soc_unregister_dai(&wm8731_dai); | |
629 | snd_soc_unregister_codec(&wm8731->codec); | |
7dea7c01 MB |
630 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
631 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
5998102b MB |
632 | kfree(wm8731); |
633 | wm8731_codec = NULL; | |
634 | } | |
a8035c8f | 635 | |
5998102b | 636 | #if defined(CONFIG_SPI_MASTER) |
5998102b MB |
637 | static int __devinit wm8731_spi_probe(struct spi_device *spi) |
638 | { | |
639 | struct snd_soc_codec *codec; | |
640 | struct wm8731_priv *wm8731; | |
641 | ||
642 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); | |
643 | if (wm8731 == NULL) | |
644 | return -ENOMEM; | |
645 | ||
646 | codec = &wm8731->codec; | |
647 | codec->control_data = spi; | |
5998102b MB |
648 | codec->dev = &spi->dev; |
649 | ||
ae31c1fb | 650 | dev_set_drvdata(&spi->dev, wm8731); |
93b760b7 | 651 | |
7084a42b | 652 | return wm8731_register(wm8731, SND_SOC_SPI); |
5998102b MB |
653 | } |
654 | ||
655 | static int __devexit wm8731_spi_remove(struct spi_device *spi) | |
656 | { | |
ae31c1fb | 657 | struct wm8731_priv *wm8731 = dev_get_drvdata(&spi->dev); |
93b760b7 MB |
658 | |
659 | wm8731_unregister(wm8731); | |
660 | ||
5998102b MB |
661 | return 0; |
662 | } | |
663 | ||
664 | static struct spi_driver wm8731_spi_driver = { | |
665 | .driver = { | |
666 | .name = "wm8731", | |
667 | .bus = &spi_bus_type, | |
668 | .owner = THIS_MODULE, | |
669 | }, | |
670 | .probe = wm8731_spi_probe, | |
671 | .remove = __devexit_p(wm8731_spi_remove), | |
672 | }; | |
a8035c8f MB |
673 | #endif /* CONFIG_SPI_MASTER */ |
674 | ||
675 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
c6f29811 MB |
676 | static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, |
677 | const struct i2c_device_id *id) | |
a8035c8f | 678 | { |
5998102b MB |
679 | struct wm8731_priv *wm8731; |
680 | struct snd_soc_codec *codec; | |
a8035c8f | 681 | |
5998102b MB |
682 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
683 | if (wm8731 == NULL) | |
684 | return -ENOMEM; | |
685 | ||
686 | codec = &wm8731->codec; | |
5998102b MB |
687 | |
688 | i2c_set_clientdata(i2c, wm8731); | |
a8035c8f MB |
689 | codec->control_data = i2c; |
690 | ||
5998102b | 691 | codec->dev = &i2c->dev; |
a8035c8f | 692 | |
7084a42b | 693 | return wm8731_register(wm8731, SND_SOC_I2C); |
a8035c8f MB |
694 | } |
695 | ||
c6f29811 | 696 | static __devexit int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 697 | { |
5998102b MB |
698 | struct wm8731_priv *wm8731 = i2c_get_clientdata(client); |
699 | wm8731_unregister(wm8731); | |
a8035c8f MB |
700 | return 0; |
701 | } | |
702 | ||
703 | static const struct i2c_device_id wm8731_i2c_id[] = { | |
704 | { "wm8731", 0 }, | |
705 | { } | |
706 | }; | |
707 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
708 | ||
709 | static struct i2c_driver wm8731_i2c_driver = { | |
710 | .driver = { | |
711 | .name = "WM8731 I2C Codec", | |
712 | .owner = THIS_MODULE, | |
713 | }, | |
714 | .probe = wm8731_i2c_probe, | |
c6f29811 | 715 | .remove = __devexit_p(wm8731_i2c_remove), |
a8035c8f MB |
716 | .id_table = wm8731_i2c_id, |
717 | }; | |
718 | #endif | |
719 | ||
c9b3a40f | 720 | static int __init wm8731_modinit(void) |
64089b84 | 721 | { |
5998102b MB |
722 | int ret; |
723 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
724 | ret = i2c_add_driver(&wm8731_i2c_driver); | |
725 | if (ret != 0) { | |
726 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
727 | ret); | |
728 | } | |
729 | #endif | |
730 | #if defined(CONFIG_SPI_MASTER) | |
731 | ret = spi_register_driver(&wm8731_spi_driver); | |
732 | if (ret != 0) { | |
733 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
734 | ret); | |
735 | } | |
736 | #endif | |
737 | return 0; | |
64089b84 MB |
738 | } |
739 | module_init(wm8731_modinit); | |
740 | ||
741 | static void __exit wm8731_exit(void) | |
742 | { | |
5998102b MB |
743 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
744 | i2c_del_driver(&wm8731_i2c_driver); | |
745 | #endif | |
746 | #if defined(CONFIG_SPI_MASTER) | |
747 | spi_unregister_driver(&wm8731_spi_driver); | |
748 | #endif | |
64089b84 MB |
749 | } |
750 | module_exit(wm8731_exit); | |
751 | ||
40e0aa64 RP |
752 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
753 | MODULE_AUTHOR("Richard Purdie"); | |
754 | MODULE_LICENSE("GPL"); |