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> | |
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 | ||
7dea7c01 MB |
35 | #define WM8731_NUM_SUPPLIES 4 |
36 | static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { | |
37 | "AVDD", | |
38 | "HPVDD", | |
39 | "DCVDD", | |
40 | "DBVDD", | |
41 | }; | |
42 | ||
b36d61d4 FM |
43 | /* codec private data */ |
44 | struct wm8731_priv { | |
f0fba2ad | 45 | enum snd_soc_control_type control_type; |
7dea7c01 | 46 | struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; |
5998102b | 47 | u16 reg_cache[WM8731_CACHEREGNUM]; |
b36d61d4 | 48 | unsigned int sysclk; |
9745e824 | 49 | int sysclk_type; |
b36d61d4 FM |
50 | }; |
51 | ||
a8035c8f | 52 | |
40e0aa64 RP |
53 | /* |
54 | * wm8731 register cache | |
55 | * We can't read the WM8731 register space when we are | |
56 | * using 2 wire for device control, so we cache them instead. | |
57 | * There is no point in caching the reset register | |
58 | */ | |
59 | static const u16 wm8731_reg[WM8731_CACHEREGNUM] = { | |
17a52fd6 MB |
60 | 0x0097, 0x0097, 0x0079, 0x0079, |
61 | 0x000a, 0x0008, 0x009f, 0x000a, | |
62 | 0x0000, 0x0000 | |
40e0aa64 RP |
63 | }; |
64 | ||
17a52fd6 | 65 | #define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0) |
40e0aa64 RP |
66 | |
67 | static const char *wm8731_input_select[] = {"Line In", "Mic"}; | |
68 | static const char *wm8731_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"}; | |
69 | ||
70 | static const struct soc_enum wm8731_enum[] = { | |
71 | SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select), | |
72 | SOC_ENUM_SINGLE(WM8731_APDIGI, 1, 4, wm8731_deemph), | |
73 | }; | |
74 | ||
d00efa64 MB |
75 | static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0); |
76 | static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0); | |
77 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
78 | ||
40e0aa64 RP |
79 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { |
80 | ||
d00efa64 MB |
81 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
82 | 0, 127, 0, out_tlv), | |
bd903b6e LG |
83 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, |
84 | 7, 1, 0), | |
40e0aa64 | 85 | |
d00efa64 MB |
86 | SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0, |
87 | in_tlv), | |
40e0aa64 RP |
88 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), |
89 | ||
90 | SOC_SINGLE("Mic Boost (+20dB)", WM8731_APANA, 0, 1, 0), | |
ef38ed88 | 91 | SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1), |
40e0aa64 | 92 | |
d00efa64 MB |
93 | SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1, |
94 | sidetone_tlv), | |
40e0aa64 RP |
95 | |
96 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), | |
97 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), | |
98 | ||
99 | SOC_ENUM("Playback De-emphasis", wm8731_enum[1]), | |
100 | }; | |
101 | ||
40e0aa64 RP |
102 | /* Output Mixer */ |
103 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { | |
104 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), | |
105 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), | |
106 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), | |
107 | }; | |
108 | ||
109 | /* Input mux */ | |
110 | static const struct snd_kcontrol_new wm8731_input_mux_controls = | |
111 | SOC_DAPM_ENUM("Input Select", wm8731_enum[0]); | |
112 | ||
113 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
9745e824 | 114 | SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0), |
40e0aa64 RP |
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 | ||
9745e824 MB |
132 | static int wm8731_check_osc(struct snd_soc_dapm_widget *source, |
133 | struct snd_soc_dapm_widget *sink) | |
134 | { | |
135 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(source->codec); | |
136 | ||
137 | return wm8731->sysclk_type == WM8731_SYSCLK_MCLK; | |
138 | } | |
139 | ||
a65f0568 | 140 | static const struct snd_soc_dapm_route intercon[] = { |
9745e824 MB |
141 | {"DAC", NULL, "OSC", wm8731_check_osc}, |
142 | {"ADC", NULL, "OSC", wm8731_check_osc}, | |
143 | ||
40e0aa64 RP |
144 | /* output mixer */ |
145 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
146 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
147 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
148 | ||
149 | /* outputs */ | |
150 | {"RHPOUT", NULL, "Output Mixer"}, | |
151 | {"ROUT", NULL, "Output Mixer"}, | |
152 | {"LHPOUT", NULL, "Output Mixer"}, | |
153 | {"LOUT", NULL, "Output Mixer"}, | |
154 | ||
155 | /* input mux */ | |
156 | {"Input Mux", "Line In", "Line Input"}, | |
157 | {"Input Mux", "Mic", "Mic Bias"}, | |
158 | {"ADC", NULL, "Input Mux"}, | |
159 | ||
160 | /* inputs */ | |
161 | {"Line Input", NULL, "LLINEIN"}, | |
162 | {"Line Input", NULL, "RLINEIN"}, | |
163 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
164 | }; |
165 | ||
166 | static int wm8731_add_widgets(struct snd_soc_codec *codec) | |
167 | { | |
ce6120cc | 168 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
40e0aa64 | 169 | |
ce6120cc LG |
170 | snd_soc_dapm_new_controls(dapm, wm8731_dapm_widgets, |
171 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
172 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); | |
40e0aa64 | 173 | |
40e0aa64 RP |
174 | return 0; |
175 | } | |
176 | ||
177 | struct _coeff_div { | |
178 | u32 mclk; | |
179 | u32 rate; | |
180 | u16 fs; | |
181 | u8 sr:4; | |
182 | u8 bosr:1; | |
183 | u8 usb:1; | |
184 | }; | |
185 | ||
186 | /* codec mclk clock divider coefficients */ | |
187 | static const struct _coeff_div coeff_div[] = { | |
188 | /* 48k */ | |
189 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
190 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
191 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
192 | ||
193 | /* 32k */ | |
194 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
195 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 196 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
197 | |
198 | /* 8k */ | |
199 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
200 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
201 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
202 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
203 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
204 | ||
205 | /* 96k */ | |
206 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
207 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
208 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
209 | ||
210 | /* 44.1k */ | |
211 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
212 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
213 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
214 | ||
215 | /* 88.2k */ | |
216 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
217 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
218 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
219 | }; | |
220 | ||
221 | static inline int get_coeff(int mclk, int rate) | |
222 | { | |
223 | int i; | |
224 | ||
225 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
226 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
227 | return i; | |
228 | } | |
229 | return 0; | |
230 | } | |
231 | ||
b36d61d4 | 232 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
233 | struct snd_pcm_hw_params *params, |
234 | struct snd_soc_dai *dai) | |
40e0aa64 | 235 | { |
f0fba2ad | 236 | struct snd_soc_codec *codec = dai->codec; |
b2c812e2 | 237 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 | 238 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
239 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
240 | u16 srate = (coeff_div[i].sr << 2) | | |
241 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 242 | |
17a52fd6 | 243 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
244 | |
245 | /* bit size */ | |
246 | switch (params_format(params)) { | |
247 | case SNDRV_PCM_FORMAT_S16_LE: | |
248 | break; | |
249 | case SNDRV_PCM_FORMAT_S20_3LE: | |
250 | iface |= 0x0004; | |
251 | break; | |
252 | case SNDRV_PCM_FORMAT_S24_LE: | |
253 | iface |= 0x0008; | |
254 | break; | |
255 | } | |
40e0aa64 | 256 | |
17a52fd6 | 257 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 258 | return 0; |
40e0aa64 RP |
259 | } |
260 | ||
dee89c4d MB |
261 | static int wm8731_pcm_prepare(struct snd_pcm_substream *substream, |
262 | struct snd_soc_dai *dai) | |
40e0aa64 | 263 | { |
f0fba2ad | 264 | struct snd_soc_codec *codec = dai->codec; |
b36d61d4 FM |
265 | |
266 | /* set active */ | |
17a52fd6 | 267 | snd_soc_write(codec, WM8731_ACTIVE, 0x0001); |
b36d61d4 FM |
268 | |
269 | return 0; | |
270 | } | |
271 | ||
dee89c4d MB |
272 | static void wm8731_shutdown(struct snd_pcm_substream *substream, |
273 | struct snd_soc_dai *dai) | |
b36d61d4 | 274 | { |
f0fba2ad | 275 | struct snd_soc_codec *codec = dai->codec; |
b36d61d4 FM |
276 | |
277 | /* deactivate */ | |
278 | if (!codec->active) { | |
279 | udelay(50); | |
17a52fd6 | 280 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
b36d61d4 FM |
281 | } |
282 | } | |
283 | ||
e550e17f | 284 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
285 | { |
286 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 287 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
288 | |
289 | if (mute) | |
17a52fd6 | 290 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 291 | else |
17a52fd6 | 292 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
293 | return 0; |
294 | } | |
295 | ||
e550e17f | 296 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
297 | int clk_id, unsigned int freq, int dir) |
298 | { | |
299 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 300 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
b36d61d4 | 301 | |
9745e824 MB |
302 | switch (clk_id) { |
303 | case WM8731_SYSCLK_XTAL: | |
304 | case WM8731_SYSCLK_MCLK: | |
305 | wm8731->sysclk_type = clk_id; | |
306 | break; | |
307 | default: | |
308 | return -EINVAL; | |
309 | } | |
310 | ||
b36d61d4 FM |
311 | switch (freq) { |
312 | case 11289600: | |
313 | case 12000000: | |
314 | case 12288000: | |
315 | case 16934400: | |
316 | case 18432000: | |
317 | wm8731->sysclk = freq; | |
9745e824 MB |
318 | break; |
319 | default: | |
320 | return -EINVAL; | |
b36d61d4 | 321 | } |
9745e824 | 322 | |
ce6120cc | 323 | snd_soc_dapm_sync(&codec->dapm); |
9745e824 MB |
324 | |
325 | return 0; | |
b36d61d4 FM |
326 | } |
327 | ||
328 | ||
e550e17f | 329 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
330 | unsigned int fmt) |
331 | { | |
332 | struct snd_soc_codec *codec = codec_dai->codec; | |
333 | u16 iface = 0; | |
40e0aa64 RP |
334 | |
335 | /* set master/slave audio interface */ | |
b36d61d4 | 336 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
337 | case SND_SOC_DAIFMT_CBM_CFM: |
338 | iface |= 0x0040; | |
339 | break; | |
340 | case SND_SOC_DAIFMT_CBS_CFS: | |
341 | break; | |
b36d61d4 FM |
342 | default: |
343 | return -EINVAL; | |
40e0aa64 | 344 | } |
40e0aa64 RP |
345 | |
346 | /* interface format */ | |
b36d61d4 | 347 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
348 | case SND_SOC_DAIFMT_I2S: |
349 | iface |= 0x0002; | |
350 | break; | |
351 | case SND_SOC_DAIFMT_RIGHT_J: | |
352 | break; | |
353 | case SND_SOC_DAIFMT_LEFT_J: | |
354 | iface |= 0x0001; | |
355 | break; | |
356 | case SND_SOC_DAIFMT_DSP_A: | |
357 | iface |= 0x0003; | |
358 | break; | |
359 | case SND_SOC_DAIFMT_DSP_B: | |
360 | iface |= 0x0013; | |
361 | break; | |
b36d61d4 FM |
362 | default: |
363 | return -EINVAL; | |
40e0aa64 RP |
364 | } |
365 | ||
366 | /* clock inversion */ | |
b36d61d4 | 367 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
368 | case SND_SOC_DAIFMT_NB_NF: |
369 | break; | |
370 | case SND_SOC_DAIFMT_IB_IF: | |
371 | iface |= 0x0090; | |
372 | break; | |
373 | case SND_SOC_DAIFMT_IB_NF: | |
374 | iface |= 0x0080; | |
375 | break; | |
376 | case SND_SOC_DAIFMT_NB_IF: | |
377 | iface |= 0x0010; | |
378 | break; | |
b36d61d4 FM |
379 | default: |
380 | return -EINVAL; | |
40e0aa64 RP |
381 | } |
382 | ||
383 | /* set iface */ | |
17a52fd6 | 384 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
385 | return 0; |
386 | } | |
387 | ||
0be9898a MB |
388 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
389 | enum snd_soc_bias_level level) | |
40e0aa64 | 390 | { |
06ae9988 MB |
391 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
392 | int i, ret; | |
393 | u8 data[2]; | |
394 | u16 *cache = codec->reg_cache; | |
22d22ee5 | 395 | u16 reg; |
40e0aa64 | 396 | |
0be9898a MB |
397 | switch (level) { |
398 | case SND_SOC_BIAS_ON: | |
40e0aa64 | 399 | break; |
0be9898a | 400 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 401 | break; |
0be9898a | 402 | case SND_SOC_BIAS_STANDBY: |
ce6120cc | 403 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
06ae9988 MB |
404 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
405 | wm8731->supplies); | |
406 | if (ret != 0) | |
407 | return ret; | |
408 | ||
409 | /* Sync reg_cache with the hardware */ | |
410 | for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) { | |
411 | if (cache[i] == wm8731_reg[i]) | |
412 | continue; | |
413 | ||
414 | data[0] = (i << 1) | ((cache[i] >> 8) | |
415 | & 0x0001); | |
416 | data[1] = cache[i] & 0x00ff; | |
417 | codec->hw_write(codec->control_data, data, 2); | |
418 | } | |
419 | } | |
420 | ||
22d22ee5 | 421 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
422 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
423 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 424 | break; |
0be9898a | 425 | case SND_SOC_BIAS_OFF: |
17a52fd6 MB |
426 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
427 | snd_soc_write(codec, WM8731_PWR, 0xffff); | |
06ae9988 MB |
428 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
429 | wm8731->supplies); | |
40e0aa64 RP |
430 | break; |
431 | } | |
ce6120cc | 432 | codec->dapm.bias_level = level; |
40e0aa64 RP |
433 | return 0; |
434 | } | |
435 | ||
e135443e | 436 | #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 |
b36d61d4 FM |
437 | |
438 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
439 | SNDRV_PCM_FMTBIT_S24_LE) | |
440 | ||
6335d055 EM |
441 | static struct snd_soc_dai_ops wm8731_dai_ops = { |
442 | .prepare = wm8731_pcm_prepare, | |
443 | .hw_params = wm8731_hw_params, | |
444 | .shutdown = wm8731_shutdown, | |
445 | .digital_mute = wm8731_mute, | |
446 | .set_sysclk = wm8731_set_dai_sysclk, | |
447 | .set_fmt = wm8731_set_dai_fmt, | |
448 | }; | |
449 | ||
f0fba2ad LG |
450 | static struct snd_soc_dai_driver wm8731_dai = { |
451 | .name = "wm8731-hifi", | |
40e0aa64 RP |
452 | .playback = { |
453 | .stream_name = "Playback", | |
454 | .channels_min = 1, | |
455 | .channels_max = 2, | |
b36d61d4 FM |
456 | .rates = WM8731_RATES, |
457 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
458 | .capture = { |
459 | .stream_name = "Capture", | |
460 | .channels_min = 1, | |
461 | .channels_max = 2, | |
b36d61d4 FM |
462 | .rates = WM8731_RATES, |
463 | .formats = WM8731_FORMATS,}, | |
6335d055 | 464 | .ops = &wm8731_dai_ops, |
4934482d | 465 | .symmetric_rates = 1, |
40e0aa64 | 466 | }; |
40e0aa64 | 467 | |
b3b50b3f | 468 | #ifdef CONFIG_PM |
f0fba2ad | 469 | static int wm8731_suspend(struct snd_soc_codec *codec, pm_message_t state) |
40e0aa64 | 470 | { |
0be9898a | 471 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
06ae9988 | 472 | |
40e0aa64 RP |
473 | return 0; |
474 | } | |
475 | ||
f0fba2ad | 476 | static int wm8731_resume(struct snd_soc_codec *codec) |
40e0aa64 | 477 | { |
0be9898a | 478 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
7dea7c01 | 479 | |
40e0aa64 RP |
480 | return 0; |
481 | } | |
b3b50b3f MB |
482 | #else |
483 | #define wm8731_suspend NULL | |
484 | #define wm8731_resume NULL | |
485 | #endif | |
40e0aa64 | 486 | |
f0fba2ad | 487 | static int wm8731_probe(struct snd_soc_codec *codec) |
40e0aa64 | 488 | { |
f0fba2ad LG |
489 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
490 | int ret = 0, i; | |
5998102b | 491 | |
f0fba2ad | 492 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8731->control_type); |
17a52fd6 MB |
493 | if (ret < 0) { |
494 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 495 | return ret; |
17a52fd6 MB |
496 | } |
497 | ||
7dea7c01 MB |
498 | for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++) |
499 | wm8731->supplies[i].supply = wm8731_supply_names[i]; | |
500 | ||
501 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8731->supplies), | |
502 | wm8731->supplies); | |
503 | if (ret != 0) { | |
504 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
f0fba2ad | 505 | return ret; |
7dea7c01 MB |
506 | } |
507 | ||
508 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), | |
509 | wm8731->supplies); | |
510 | if (ret != 0) { | |
511 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
512 | goto err_regulator_get; | |
513 | } | |
514 | ||
519cf2df MB |
515 | ret = wm8731_reset(codec); |
516 | if (ret < 0) { | |
fe5422fc | 517 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
7dea7c01 | 518 | goto err_regulator_enable; |
519cf2df MB |
519 | } |
520 | ||
5998102b MB |
521 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
522 | ||
523 | /* Latch the update bits */ | |
17a52fd6 MB |
524 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
525 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); | |
526 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); | |
527 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); | |
5998102b | 528 | |
ce3bdaa8 | 529 | /* Disable bypass path by default */ |
17a52fd6 | 530 | snd_soc_update_bits(codec, WM8731_APANA, 0x4, 0); |
ce3bdaa8 | 531 | |
f0fba2ad LG |
532 | snd_soc_add_controls(codec, wm8731_snd_controls, |
533 | ARRAY_SIZE(wm8731_snd_controls)); | |
534 | wm8731_add_widgets(codec); | |
a8035c8f | 535 | |
06ae9988 MB |
536 | /* Regulators will have been enabled by bias management */ |
537 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
538 | ||
a8035c8f | 539 | return 0; |
fe5422fc | 540 | |
7dea7c01 MB |
541 | err_regulator_enable: |
542 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
543 | err_regulator_get: | |
544 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
f0fba2ad | 545 | |
fe5422fc MB |
546 | kfree(wm8731); |
547 | return ret; | |
a8035c8f MB |
548 | } |
549 | ||
f0fba2ad LG |
550 | /* power down chip */ |
551 | static int wm8731_remove(struct snd_soc_codec *codec) | |
5998102b | 552 | { |
f0fba2ad LG |
553 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
554 | ||
555 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
556 | ||
557 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
7dea7c01 | 558 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
f0fba2ad LG |
559 | |
560 | return 0; | |
5998102b | 561 | } |
a8035c8f | 562 | |
f0fba2ad LG |
563 | static struct snd_soc_codec_driver soc_codec_dev_wm8731 = { |
564 | .probe = wm8731_probe, | |
565 | .remove = wm8731_remove, | |
566 | .suspend = wm8731_suspend, | |
567 | .resume = wm8731_resume, | |
568 | .set_bias_level = wm8731_set_bias_level, | |
e5eec34c | 569 | .reg_cache_size = ARRAY_SIZE(wm8731_reg), |
f0fba2ad LG |
570 | .reg_word_size = sizeof(u16), |
571 | .reg_cache_default = wm8731_reg, | |
572 | }; | |
573 | ||
5998102b | 574 | #if defined(CONFIG_SPI_MASTER) |
5998102b MB |
575 | static int __devinit wm8731_spi_probe(struct spi_device *spi) |
576 | { | |
5998102b | 577 | struct wm8731_priv *wm8731; |
f0fba2ad | 578 | int ret; |
5998102b MB |
579 | |
580 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); | |
581 | if (wm8731 == NULL) | |
582 | return -ENOMEM; | |
583 | ||
f0fba2ad LG |
584 | wm8731->control_type = SND_SOC_SPI; |
585 | spi_set_drvdata(spi, wm8731); | |
93b760b7 | 586 | |
f0fba2ad LG |
587 | ret = snd_soc_register_codec(&spi->dev, |
588 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
589 | if (ret < 0) | |
590 | kfree(wm8731); | |
591 | return ret; | |
5998102b MB |
592 | } |
593 | ||
594 | static int __devexit wm8731_spi_remove(struct spi_device *spi) | |
595 | { | |
f0fba2ad LG |
596 | snd_soc_unregister_codec(&spi->dev); |
597 | kfree(spi_get_drvdata(spi)); | |
5998102b MB |
598 | return 0; |
599 | } | |
600 | ||
601 | static struct spi_driver wm8731_spi_driver = { | |
602 | .driver = { | |
f0fba2ad | 603 | .name = "wm8731-codec", |
5998102b MB |
604 | .owner = THIS_MODULE, |
605 | }, | |
606 | .probe = wm8731_spi_probe, | |
607 | .remove = __devexit_p(wm8731_spi_remove), | |
608 | }; | |
a8035c8f MB |
609 | #endif /* CONFIG_SPI_MASTER */ |
610 | ||
611 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
c6f29811 MB |
612 | static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, |
613 | const struct i2c_device_id *id) | |
a8035c8f | 614 | { |
5998102b | 615 | struct wm8731_priv *wm8731; |
f0fba2ad | 616 | int ret; |
a8035c8f | 617 | |
5998102b MB |
618 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
619 | if (wm8731 == NULL) | |
620 | return -ENOMEM; | |
621 | ||
5998102b | 622 | i2c_set_clientdata(i2c, wm8731); |
f0fba2ad | 623 | wm8731->control_type = SND_SOC_I2C; |
a8035c8f | 624 | |
f0fba2ad LG |
625 | ret = snd_soc_register_codec(&i2c->dev, |
626 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
627 | if (ret < 0) | |
628 | kfree(wm8731); | |
629 | return ret; | |
a8035c8f MB |
630 | } |
631 | ||
c6f29811 | 632 | static __devexit int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 633 | { |
f0fba2ad LG |
634 | snd_soc_unregister_codec(&client->dev); |
635 | kfree(i2c_get_clientdata(client)); | |
a8035c8f MB |
636 | return 0; |
637 | } | |
638 | ||
639 | static const struct i2c_device_id wm8731_i2c_id[] = { | |
640 | { "wm8731", 0 }, | |
641 | { } | |
642 | }; | |
643 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
644 | ||
645 | static struct i2c_driver wm8731_i2c_driver = { | |
646 | .driver = { | |
f0fba2ad | 647 | .name = "wm8731-codec", |
a8035c8f MB |
648 | .owner = THIS_MODULE, |
649 | }, | |
650 | .probe = wm8731_i2c_probe, | |
c6f29811 | 651 | .remove = __devexit_p(wm8731_i2c_remove), |
a8035c8f MB |
652 | .id_table = wm8731_i2c_id, |
653 | }; | |
654 | #endif | |
655 | ||
c9b3a40f | 656 | static int __init wm8731_modinit(void) |
64089b84 | 657 | { |
f0fba2ad | 658 | int ret = 0; |
5998102b MB |
659 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
660 | ret = i2c_add_driver(&wm8731_i2c_driver); | |
661 | if (ret != 0) { | |
662 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
663 | ret); | |
664 | } | |
665 | #endif | |
666 | #if defined(CONFIG_SPI_MASTER) | |
667 | ret = spi_register_driver(&wm8731_spi_driver); | |
668 | if (ret != 0) { | |
669 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
670 | ret); | |
671 | } | |
672 | #endif | |
f0fba2ad | 673 | return ret; |
64089b84 MB |
674 | } |
675 | module_init(wm8731_modinit); | |
676 | ||
677 | static void __exit wm8731_exit(void) | |
678 | { | |
5998102b MB |
679 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
680 | i2c_del_driver(&wm8731_i2c_driver); | |
681 | #endif | |
682 | #if defined(CONFIG_SPI_MASTER) | |
683 | spi_unregister_driver(&wm8731_spi_driver); | |
684 | #endif | |
64089b84 MB |
685 | } |
686 | module_exit(wm8731_exit); | |
687 | ||
40e0aa64 RP |
688 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
689 | MODULE_AUTHOR("Richard Purdie"); | |
690 | MODULE_LICENSE("GPL"); |