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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> | |
40e0aa64 | 29 | #include <sound/initval.h> |
d00efa64 | 30 | #include <sound/tlv.h> |
40e0aa64 RP |
31 | |
32 | #include "wm8731.h" | |
33 | ||
7dea7c01 MB |
34 | #define WM8731_NUM_SUPPLIES 4 |
35 | static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { | |
36 | "AVDD", | |
37 | "HPVDD", | |
38 | "DCVDD", | |
39 | "DBVDD", | |
40 | }; | |
41 | ||
b36d61d4 FM |
42 | /* codec private data */ |
43 | struct wm8731_priv { | |
f0fba2ad | 44 | enum snd_soc_control_type control_type; |
7dea7c01 | 45 | struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; |
b36d61d4 | 46 | unsigned int sysclk; |
9745e824 | 47 | int sysclk_type; |
dd31b310 MB |
48 | int playback_fs; |
49 | bool deemph; | |
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"}; | |
59f72970 | 68 | |
59f72970 MB |
69 | static const struct soc_enum wm8731_insel_enum = |
70 | SOC_ENUM_SINGLE(WM8731_APANA, 2, 2, wm8731_input_select); | |
71 | ||
dd31b310 MB |
72 | static int wm8731_deemph[] = { 0, 32000, 44100, 48000 }; |
73 | ||
74 | static int wm8731_set_deemph(struct snd_soc_codec *codec) | |
75 | { | |
76 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); | |
77 | int val, i, best; | |
78 | ||
79 | /* If we're using deemphasis select the nearest available sample | |
80 | * rate. | |
81 | */ | |
82 | if (wm8731->deemph) { | |
83 | best = 1; | |
84 | for (i = 2; i < ARRAY_SIZE(wm8731_deemph); i++) { | |
85 | if (abs(wm8731_deemph[i] - wm8731->playback_fs) < | |
86 | abs(wm8731_deemph[best] - wm8731->playback_fs)) | |
87 | best = i; | |
88 | } | |
89 | ||
90 | val = best << 1; | |
91 | } else { | |
92 | best = 0; | |
93 | val = 0; | |
94 | } | |
95 | ||
96 | dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n", | |
97 | best, wm8731_deemph[best]); | |
98 | ||
99 | return snd_soc_update_bits(codec, WM8731_APDIGI, 0x6, val); | |
100 | } | |
101 | ||
102 | static int wm8731_get_deemph(struct snd_kcontrol *kcontrol, | |
103 | struct snd_ctl_elem_value *ucontrol) | |
104 | { | |
105 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
106 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); | |
107 | ||
108 | ucontrol->value.enumerated.item[0] = wm8731->deemph; | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
113 | static int wm8731_put_deemph(struct snd_kcontrol *kcontrol, | |
114 | struct snd_ctl_elem_value *ucontrol) | |
115 | { | |
116 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
117 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); | |
118 | int deemph = ucontrol->value.enumerated.item[0]; | |
119 | int ret = 0; | |
120 | ||
121 | if (deemph > 1) | |
122 | return -EINVAL; | |
123 | ||
124 | mutex_lock(&codec->mutex); | |
125 | if (wm8731->deemph != deemph) { | |
126 | wm8731->deemph = deemph; | |
59f72970 | 127 | |
dd31b310 MB |
128 | wm8731_set_deemph(codec); |
129 | ||
130 | ret = 1; | |
131 | } | |
132 | mutex_unlock(&codec->mutex); | |
133 | ||
134 | return ret; | |
135 | } | |
40e0aa64 | 136 | |
d00efa64 MB |
137 | static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0); |
138 | static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0); | |
139 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
d921184e | 140 | static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 2000, 0); |
d00efa64 | 141 | |
40e0aa64 RP |
142 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { |
143 | ||
d00efa64 MB |
144 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
145 | 0, 127, 0, out_tlv), | |
bd903b6e LG |
146 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, |
147 | 7, 1, 0), | |
40e0aa64 | 148 | |
d00efa64 MB |
149 | SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0, |
150 | in_tlv), | |
40e0aa64 RP |
151 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), |
152 | ||
d921184e | 153 | SOC_SINGLE_TLV("Mic Boost Volume", WM8731_APANA, 0, 1, 0, mic_tlv), |
ef38ed88 | 154 | SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1), |
40e0aa64 | 155 | |
d00efa64 MB |
156 | SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1, |
157 | sidetone_tlv), | |
40e0aa64 RP |
158 | |
159 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), | |
160 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), | |
161 | ||
dd31b310 MB |
162 | SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0, |
163 | wm8731_get_deemph, wm8731_put_deemph), | |
40e0aa64 RP |
164 | }; |
165 | ||
40e0aa64 RP |
166 | /* Output Mixer */ |
167 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { | |
168 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), | |
169 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), | |
170 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), | |
171 | }; | |
172 | ||
173 | /* Input mux */ | |
174 | static const struct snd_kcontrol_new wm8731_input_mux_controls = | |
59f72970 | 175 | SOC_DAPM_ENUM("Input Select", wm8731_insel_enum); |
40e0aa64 RP |
176 | |
177 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
9745e824 | 178 | SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0), |
40e0aa64 RP |
179 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, |
180 | &wm8731_output_mixer_controls[0], | |
181 | ARRAY_SIZE(wm8731_output_mixer_controls)), | |
182 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), | |
183 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
184 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
185 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
186 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
187 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), | |
188 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), | |
189 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), | |
190 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), | |
191 | SND_SOC_DAPM_INPUT("MICIN"), | |
192 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
193 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
194 | }; | |
195 | ||
9745e824 MB |
196 | static int wm8731_check_osc(struct snd_soc_dapm_widget *source, |
197 | struct snd_soc_dapm_widget *sink) | |
198 | { | |
199 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(source->codec); | |
200 | ||
201 | return wm8731->sysclk_type == WM8731_SYSCLK_MCLK; | |
202 | } | |
203 | ||
5e251aec | 204 | static const struct snd_soc_dapm_route wm8731_intercon[] = { |
9745e824 MB |
205 | {"DAC", NULL, "OSC", wm8731_check_osc}, |
206 | {"ADC", NULL, "OSC", wm8731_check_osc}, | |
207 | ||
40e0aa64 RP |
208 | /* output mixer */ |
209 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
210 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
211 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
212 | ||
213 | /* outputs */ | |
214 | {"RHPOUT", NULL, "Output Mixer"}, | |
215 | {"ROUT", NULL, "Output Mixer"}, | |
216 | {"LHPOUT", NULL, "Output Mixer"}, | |
217 | {"LOUT", NULL, "Output Mixer"}, | |
218 | ||
219 | /* input mux */ | |
220 | {"Input Mux", "Line In", "Line Input"}, | |
221 | {"Input Mux", "Mic", "Mic Bias"}, | |
222 | {"ADC", NULL, "Input Mux"}, | |
223 | ||
224 | /* inputs */ | |
225 | {"Line Input", NULL, "LLINEIN"}, | |
226 | {"Line Input", NULL, "RLINEIN"}, | |
227 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
228 | }; |
229 | ||
40e0aa64 RP |
230 | struct _coeff_div { |
231 | u32 mclk; | |
232 | u32 rate; | |
233 | u16 fs; | |
234 | u8 sr:4; | |
235 | u8 bosr:1; | |
236 | u8 usb:1; | |
237 | }; | |
238 | ||
239 | /* codec mclk clock divider coefficients */ | |
240 | static const struct _coeff_div coeff_div[] = { | |
241 | /* 48k */ | |
242 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
243 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
244 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
245 | ||
246 | /* 32k */ | |
247 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
248 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 249 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
250 | |
251 | /* 8k */ | |
252 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
253 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
254 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
255 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
256 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
257 | ||
258 | /* 96k */ | |
259 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
260 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
261 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
262 | ||
263 | /* 44.1k */ | |
264 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
265 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
266 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
267 | ||
268 | /* 88.2k */ | |
269 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
270 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
271 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
272 | }; | |
273 | ||
274 | static inline int get_coeff(int mclk, int rate) | |
275 | { | |
276 | int i; | |
277 | ||
278 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
279 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
280 | return i; | |
281 | } | |
282 | return 0; | |
283 | } | |
284 | ||
b36d61d4 | 285 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
286 | struct snd_pcm_hw_params *params, |
287 | struct snd_soc_dai *dai) | |
40e0aa64 | 288 | { |
f0fba2ad | 289 | struct snd_soc_codec *codec = dai->codec; |
b2c812e2 | 290 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 | 291 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
292 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
293 | u16 srate = (coeff_div[i].sr << 2) | | |
294 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 295 | |
dd31b310 MB |
296 | wm8731->playback_fs = params_rate(params); |
297 | ||
17a52fd6 | 298 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
299 | |
300 | /* bit size */ | |
301 | switch (params_format(params)) { | |
302 | case SNDRV_PCM_FORMAT_S16_LE: | |
303 | break; | |
304 | case SNDRV_PCM_FORMAT_S20_3LE: | |
305 | iface |= 0x0004; | |
306 | break; | |
307 | case SNDRV_PCM_FORMAT_S24_LE: | |
308 | iface |= 0x0008; | |
309 | break; | |
310 | } | |
40e0aa64 | 311 | |
dd31b310 MB |
312 | wm8731_set_deemph(codec); |
313 | ||
17a52fd6 | 314 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 315 | return 0; |
40e0aa64 RP |
316 | } |
317 | ||
dee89c4d MB |
318 | static int wm8731_pcm_prepare(struct snd_pcm_substream *substream, |
319 | struct snd_soc_dai *dai) | |
40e0aa64 | 320 | { |
f0fba2ad | 321 | struct snd_soc_codec *codec = dai->codec; |
b36d61d4 FM |
322 | |
323 | /* set active */ | |
17a52fd6 | 324 | snd_soc_write(codec, WM8731_ACTIVE, 0x0001); |
b36d61d4 FM |
325 | |
326 | return 0; | |
327 | } | |
328 | ||
dee89c4d MB |
329 | static void wm8731_shutdown(struct snd_pcm_substream *substream, |
330 | struct snd_soc_dai *dai) | |
b36d61d4 | 331 | { |
f0fba2ad | 332 | struct snd_soc_codec *codec = dai->codec; |
b36d61d4 FM |
333 | |
334 | /* deactivate */ | |
335 | if (!codec->active) { | |
336 | udelay(50); | |
17a52fd6 | 337 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
b36d61d4 FM |
338 | } |
339 | } | |
340 | ||
e550e17f | 341 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
342 | { |
343 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 344 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
345 | |
346 | if (mute) | |
17a52fd6 | 347 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 348 | else |
17a52fd6 | 349 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
350 | return 0; |
351 | } | |
352 | ||
e550e17f | 353 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
354 | int clk_id, unsigned int freq, int dir) |
355 | { | |
356 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 357 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
b36d61d4 | 358 | |
9745e824 MB |
359 | switch (clk_id) { |
360 | case WM8731_SYSCLK_XTAL: | |
361 | case WM8731_SYSCLK_MCLK: | |
362 | wm8731->sysclk_type = clk_id; | |
363 | break; | |
364 | default: | |
365 | return -EINVAL; | |
366 | } | |
367 | ||
b36d61d4 FM |
368 | switch (freq) { |
369 | case 11289600: | |
370 | case 12000000: | |
371 | case 12288000: | |
372 | case 16934400: | |
373 | case 18432000: | |
374 | wm8731->sysclk = freq; | |
9745e824 MB |
375 | break; |
376 | default: | |
377 | return -EINVAL; | |
b36d61d4 | 378 | } |
9745e824 | 379 | |
ce6120cc | 380 | snd_soc_dapm_sync(&codec->dapm); |
9745e824 MB |
381 | |
382 | return 0; | |
b36d61d4 FM |
383 | } |
384 | ||
385 | ||
e550e17f | 386 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
387 | unsigned int fmt) |
388 | { | |
389 | struct snd_soc_codec *codec = codec_dai->codec; | |
390 | u16 iface = 0; | |
40e0aa64 RP |
391 | |
392 | /* set master/slave audio interface */ | |
b36d61d4 | 393 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
394 | case SND_SOC_DAIFMT_CBM_CFM: |
395 | iface |= 0x0040; | |
396 | break; | |
397 | case SND_SOC_DAIFMT_CBS_CFS: | |
398 | break; | |
b36d61d4 FM |
399 | default: |
400 | return -EINVAL; | |
40e0aa64 | 401 | } |
40e0aa64 RP |
402 | |
403 | /* interface format */ | |
b36d61d4 | 404 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
405 | case SND_SOC_DAIFMT_I2S: |
406 | iface |= 0x0002; | |
407 | break; | |
408 | case SND_SOC_DAIFMT_RIGHT_J: | |
409 | break; | |
410 | case SND_SOC_DAIFMT_LEFT_J: | |
411 | iface |= 0x0001; | |
412 | break; | |
413 | case SND_SOC_DAIFMT_DSP_A: | |
414 | iface |= 0x0003; | |
415 | break; | |
416 | case SND_SOC_DAIFMT_DSP_B: | |
417 | iface |= 0x0013; | |
418 | break; | |
b36d61d4 FM |
419 | default: |
420 | return -EINVAL; | |
40e0aa64 RP |
421 | } |
422 | ||
423 | /* clock inversion */ | |
b36d61d4 | 424 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
425 | case SND_SOC_DAIFMT_NB_NF: |
426 | break; | |
427 | case SND_SOC_DAIFMT_IB_IF: | |
428 | iface |= 0x0090; | |
429 | break; | |
430 | case SND_SOC_DAIFMT_IB_NF: | |
431 | iface |= 0x0080; | |
432 | break; | |
433 | case SND_SOC_DAIFMT_NB_IF: | |
434 | iface |= 0x0010; | |
435 | break; | |
b36d61d4 FM |
436 | default: |
437 | return -EINVAL; | |
40e0aa64 RP |
438 | } |
439 | ||
440 | /* set iface */ | |
17a52fd6 | 441 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
442 | return 0; |
443 | } | |
444 | ||
0be9898a MB |
445 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
446 | enum snd_soc_bias_level level) | |
40e0aa64 | 447 | { |
06ae9988 MB |
448 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
449 | int i, ret; | |
450 | u8 data[2]; | |
451 | u16 *cache = codec->reg_cache; | |
22d22ee5 | 452 | u16 reg; |
40e0aa64 | 453 | |
0be9898a MB |
454 | switch (level) { |
455 | case SND_SOC_BIAS_ON: | |
40e0aa64 | 456 | break; |
0be9898a | 457 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 458 | break; |
0be9898a | 459 | case SND_SOC_BIAS_STANDBY: |
ce6120cc | 460 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
06ae9988 MB |
461 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
462 | wm8731->supplies); | |
463 | if (ret != 0) | |
464 | return ret; | |
465 | ||
466 | /* Sync reg_cache with the hardware */ | |
467 | for (i = 0; i < ARRAY_SIZE(wm8731_reg); i++) { | |
468 | if (cache[i] == wm8731_reg[i]) | |
469 | continue; | |
470 | ||
471 | data[0] = (i << 1) | ((cache[i] >> 8) | |
472 | & 0x0001); | |
473 | data[1] = cache[i] & 0x00ff; | |
474 | codec->hw_write(codec->control_data, data, 2); | |
475 | } | |
476 | } | |
477 | ||
22d22ee5 | 478 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
479 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
480 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 481 | break; |
0be9898a | 482 | case SND_SOC_BIAS_OFF: |
17a52fd6 MB |
483 | snd_soc_write(codec, WM8731_ACTIVE, 0x0); |
484 | snd_soc_write(codec, WM8731_PWR, 0xffff); | |
06ae9988 MB |
485 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
486 | wm8731->supplies); | |
40e0aa64 RP |
487 | break; |
488 | } | |
ce6120cc | 489 | codec->dapm.bias_level = level; |
40e0aa64 RP |
490 | return 0; |
491 | } | |
492 | ||
e135443e | 493 | #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 |
b36d61d4 FM |
494 | |
495 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
496 | SNDRV_PCM_FMTBIT_S24_LE) | |
497 | ||
6335d055 EM |
498 | static struct snd_soc_dai_ops wm8731_dai_ops = { |
499 | .prepare = wm8731_pcm_prepare, | |
500 | .hw_params = wm8731_hw_params, | |
501 | .shutdown = wm8731_shutdown, | |
502 | .digital_mute = wm8731_mute, | |
503 | .set_sysclk = wm8731_set_dai_sysclk, | |
504 | .set_fmt = wm8731_set_dai_fmt, | |
505 | }; | |
506 | ||
f0fba2ad LG |
507 | static struct snd_soc_dai_driver wm8731_dai = { |
508 | .name = "wm8731-hifi", | |
40e0aa64 RP |
509 | .playback = { |
510 | .stream_name = "Playback", | |
511 | .channels_min = 1, | |
512 | .channels_max = 2, | |
b36d61d4 FM |
513 | .rates = WM8731_RATES, |
514 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
515 | .capture = { |
516 | .stream_name = "Capture", | |
517 | .channels_min = 1, | |
518 | .channels_max = 2, | |
b36d61d4 FM |
519 | .rates = WM8731_RATES, |
520 | .formats = WM8731_FORMATS,}, | |
6335d055 | 521 | .ops = &wm8731_dai_ops, |
4934482d | 522 | .symmetric_rates = 1, |
40e0aa64 | 523 | }; |
40e0aa64 | 524 | |
b3b50b3f | 525 | #ifdef CONFIG_PM |
f0fba2ad | 526 | static int wm8731_suspend(struct snd_soc_codec *codec, pm_message_t state) |
40e0aa64 | 527 | { |
0be9898a | 528 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
06ae9988 | 529 | |
40e0aa64 RP |
530 | return 0; |
531 | } | |
532 | ||
f0fba2ad | 533 | static int wm8731_resume(struct snd_soc_codec *codec) |
40e0aa64 | 534 | { |
0be9898a | 535 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
7dea7c01 | 536 | |
40e0aa64 RP |
537 | return 0; |
538 | } | |
b3b50b3f MB |
539 | #else |
540 | #define wm8731_suspend NULL | |
541 | #define wm8731_resume NULL | |
542 | #endif | |
40e0aa64 | 543 | |
f0fba2ad | 544 | static int wm8731_probe(struct snd_soc_codec *codec) |
40e0aa64 | 545 | { |
f0fba2ad LG |
546 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
547 | int ret = 0, i; | |
5998102b | 548 | |
f0fba2ad | 549 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8731->control_type); |
17a52fd6 MB |
550 | if (ret < 0) { |
551 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 552 | return ret; |
17a52fd6 MB |
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); | |
f0fba2ad | 562 | return ret; |
7dea7c01 MB |
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_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
579 | ||
580 | /* Latch the update bits */ | |
17a52fd6 MB |
581 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
582 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); | |
583 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); | |
584 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); | |
5998102b | 585 | |
ce3bdaa8 | 586 | /* Disable bypass path by default */ |
2062ea52 | 587 | snd_soc_update_bits(codec, WM8731_APANA, 0x8, 0); |
ce3bdaa8 | 588 | |
f0fba2ad LG |
589 | snd_soc_add_controls(codec, wm8731_snd_controls, |
590 | ARRAY_SIZE(wm8731_snd_controls)); | |
a8035c8f | 591 | |
06ae9988 MB |
592 | /* Regulators will have been enabled by bias management */ |
593 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
594 | ||
a8035c8f | 595 | return 0; |
fe5422fc | 596 | |
7dea7c01 MB |
597 | err_regulator_enable: |
598 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
599 | err_regulator_get: | |
600 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
f0fba2ad | 601 | |
fe5422fc | 602 | return ret; |
a8035c8f MB |
603 | } |
604 | ||
f0fba2ad LG |
605 | /* power down chip */ |
606 | static int wm8731_remove(struct snd_soc_codec *codec) | |
5998102b | 607 | { |
f0fba2ad LG |
608 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
609 | ||
610 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
611 | ||
612 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
7dea7c01 | 613 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
f0fba2ad LG |
614 | |
615 | return 0; | |
5998102b | 616 | } |
a8035c8f | 617 | |
f0fba2ad LG |
618 | static struct snd_soc_codec_driver soc_codec_dev_wm8731 = { |
619 | .probe = wm8731_probe, | |
620 | .remove = wm8731_remove, | |
621 | .suspend = wm8731_suspend, | |
622 | .resume = wm8731_resume, | |
623 | .set_bias_level = wm8731_set_bias_level, | |
e5eec34c | 624 | .reg_cache_size = ARRAY_SIZE(wm8731_reg), |
f0fba2ad LG |
625 | .reg_word_size = sizeof(u16), |
626 | .reg_cache_default = wm8731_reg, | |
5e251aec MB |
627 | .dapm_widgets = wm8731_dapm_widgets, |
628 | .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets), | |
629 | .dapm_routes = wm8731_intercon, | |
630 | .num_dapm_routes = ARRAY_SIZE(wm8731_intercon), | |
f0fba2ad LG |
631 | }; |
632 | ||
5998102b | 633 | #if defined(CONFIG_SPI_MASTER) |
5998102b MB |
634 | static int __devinit wm8731_spi_probe(struct spi_device *spi) |
635 | { | |
5998102b | 636 | struct wm8731_priv *wm8731; |
f0fba2ad | 637 | int ret; |
5998102b MB |
638 | |
639 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); | |
640 | if (wm8731 == NULL) | |
641 | return -ENOMEM; | |
642 | ||
f0fba2ad LG |
643 | wm8731->control_type = SND_SOC_SPI; |
644 | spi_set_drvdata(spi, wm8731); | |
93b760b7 | 645 | |
f0fba2ad LG |
646 | ret = snd_soc_register_codec(&spi->dev, |
647 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
648 | if (ret < 0) | |
649 | kfree(wm8731); | |
650 | return ret; | |
5998102b MB |
651 | } |
652 | ||
653 | static int __devexit wm8731_spi_remove(struct spi_device *spi) | |
654 | { | |
f0fba2ad LG |
655 | snd_soc_unregister_codec(&spi->dev); |
656 | kfree(spi_get_drvdata(spi)); | |
5998102b MB |
657 | return 0; |
658 | } | |
659 | ||
660 | static struct spi_driver wm8731_spi_driver = { | |
661 | .driver = { | |
f0fba2ad | 662 | .name = "wm8731-codec", |
5998102b MB |
663 | .owner = THIS_MODULE, |
664 | }, | |
665 | .probe = wm8731_spi_probe, | |
666 | .remove = __devexit_p(wm8731_spi_remove), | |
667 | }; | |
a8035c8f MB |
668 | #endif /* CONFIG_SPI_MASTER */ |
669 | ||
670 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
c6f29811 MB |
671 | static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, |
672 | const struct i2c_device_id *id) | |
a8035c8f | 673 | { |
5998102b | 674 | struct wm8731_priv *wm8731; |
f0fba2ad | 675 | int ret; |
a8035c8f | 676 | |
5998102b MB |
677 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
678 | if (wm8731 == NULL) | |
679 | return -ENOMEM; | |
680 | ||
5998102b | 681 | i2c_set_clientdata(i2c, wm8731); |
f0fba2ad | 682 | wm8731->control_type = SND_SOC_I2C; |
a8035c8f | 683 | |
f0fba2ad LG |
684 | ret = snd_soc_register_codec(&i2c->dev, |
685 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
686 | if (ret < 0) | |
687 | kfree(wm8731); | |
688 | return ret; | |
a8035c8f MB |
689 | } |
690 | ||
c6f29811 | 691 | static __devexit int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 692 | { |
f0fba2ad LG |
693 | snd_soc_unregister_codec(&client->dev); |
694 | kfree(i2c_get_clientdata(client)); | |
a8035c8f MB |
695 | return 0; |
696 | } | |
697 | ||
698 | static const struct i2c_device_id wm8731_i2c_id[] = { | |
699 | { "wm8731", 0 }, | |
700 | { } | |
701 | }; | |
702 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
703 | ||
704 | static struct i2c_driver wm8731_i2c_driver = { | |
705 | .driver = { | |
f0fba2ad | 706 | .name = "wm8731-codec", |
a8035c8f MB |
707 | .owner = THIS_MODULE, |
708 | }, | |
709 | .probe = wm8731_i2c_probe, | |
c6f29811 | 710 | .remove = __devexit_p(wm8731_i2c_remove), |
a8035c8f MB |
711 | .id_table = wm8731_i2c_id, |
712 | }; | |
713 | #endif | |
714 | ||
c9b3a40f | 715 | static int __init wm8731_modinit(void) |
64089b84 | 716 | { |
f0fba2ad | 717 | int ret = 0; |
5998102b MB |
718 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
719 | ret = i2c_add_driver(&wm8731_i2c_driver); | |
720 | if (ret != 0) { | |
721 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
722 | ret); | |
723 | } | |
724 | #endif | |
725 | #if defined(CONFIG_SPI_MASTER) | |
726 | ret = spi_register_driver(&wm8731_spi_driver); | |
727 | if (ret != 0) { | |
728 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
729 | ret); | |
730 | } | |
731 | #endif | |
f0fba2ad | 732 | return ret; |
64089b84 MB |
733 | } |
734 | module_init(wm8731_modinit); | |
735 | ||
736 | static void __exit wm8731_exit(void) | |
737 | { | |
5998102b MB |
738 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
739 | i2c_del_driver(&wm8731_i2c_driver); | |
740 | #endif | |
741 | #if defined(CONFIG_SPI_MASTER) | |
742 | spi_unregister_driver(&wm8731_spi_driver); | |
743 | #endif | |
64089b84 MB |
744 | } |
745 | module_exit(wm8731_exit); | |
746 | ||
40e0aa64 RP |
747 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
748 | MODULE_AUTHOR("Richard Purdie"); | |
749 | MODULE_LICENSE("GPL"); |