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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> |
7dea7c01 | 22 | #include <linux/regulator/consumer.h> |
d2a40355 | 23 | #include <linux/spi/spi.h> |
a7f96e4d | 24 | #include <linux/of_device.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[] = { | |
8a27bd9a | 178 | SND_SOC_DAPM_SUPPLY("ACTIVE",WM8731_ACTIVE, 0, 0, NULL, 0), |
9745e824 | 179 | SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0), |
40e0aa64 RP |
180 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, |
181 | &wm8731_output_mixer_controls[0], | |
182 | ARRAY_SIZE(wm8731_output_mixer_controls)), | |
183 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), | |
184 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
185 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
186 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
187 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
188 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), | |
189 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), | |
190 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), | |
191 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), | |
192 | SND_SOC_DAPM_INPUT("MICIN"), | |
193 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
194 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
195 | }; | |
196 | ||
9745e824 MB |
197 | static int wm8731_check_osc(struct snd_soc_dapm_widget *source, |
198 | struct snd_soc_dapm_widget *sink) | |
199 | { | |
200 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(source->codec); | |
201 | ||
5a195b44 | 202 | return wm8731->sysclk_type == WM8731_SYSCLK_XTAL; |
9745e824 MB |
203 | } |
204 | ||
5e251aec | 205 | static const struct snd_soc_dapm_route wm8731_intercon[] = { |
9745e824 MB |
206 | {"DAC", NULL, "OSC", wm8731_check_osc}, |
207 | {"ADC", NULL, "OSC", wm8731_check_osc}, | |
8a27bd9a MB |
208 | {"DAC", NULL, "ACTIVE"}, |
209 | {"ADC", NULL, "ACTIVE"}, | |
9745e824 | 210 | |
40e0aa64 RP |
211 | /* output mixer */ |
212 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
213 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
214 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
215 | ||
216 | /* outputs */ | |
217 | {"RHPOUT", NULL, "Output Mixer"}, | |
218 | {"ROUT", NULL, "Output Mixer"}, | |
219 | {"LHPOUT", NULL, "Output Mixer"}, | |
220 | {"LOUT", NULL, "Output Mixer"}, | |
221 | ||
222 | /* input mux */ | |
223 | {"Input Mux", "Line In", "Line Input"}, | |
224 | {"Input Mux", "Mic", "Mic Bias"}, | |
225 | {"ADC", NULL, "Input Mux"}, | |
226 | ||
227 | /* inputs */ | |
228 | {"Line Input", NULL, "LLINEIN"}, | |
229 | {"Line Input", NULL, "RLINEIN"}, | |
230 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
231 | }; |
232 | ||
40e0aa64 RP |
233 | struct _coeff_div { |
234 | u32 mclk; | |
235 | u32 rate; | |
236 | u16 fs; | |
237 | u8 sr:4; | |
238 | u8 bosr:1; | |
239 | u8 usb:1; | |
240 | }; | |
241 | ||
242 | /* codec mclk clock divider coefficients */ | |
243 | static const struct _coeff_div coeff_div[] = { | |
244 | /* 48k */ | |
245 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
246 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
247 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
248 | ||
249 | /* 32k */ | |
250 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
251 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 252 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
253 | |
254 | /* 8k */ | |
255 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
256 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
257 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
258 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
259 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
260 | ||
261 | /* 96k */ | |
262 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
263 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
264 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
265 | ||
266 | /* 44.1k */ | |
267 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
268 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
269 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
270 | ||
271 | /* 88.2k */ | |
272 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
273 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
274 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
275 | }; | |
276 | ||
277 | static inline int get_coeff(int mclk, int rate) | |
278 | { | |
279 | int i; | |
280 | ||
281 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
282 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
283 | return i; | |
284 | } | |
285 | return 0; | |
286 | } | |
287 | ||
b36d61d4 | 288 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
289 | struct snd_pcm_hw_params *params, |
290 | struct snd_soc_dai *dai) | |
40e0aa64 | 291 | { |
f0fba2ad | 292 | struct snd_soc_codec *codec = dai->codec; |
b2c812e2 | 293 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 | 294 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
295 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
296 | u16 srate = (coeff_div[i].sr << 2) | | |
297 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 298 | |
dd31b310 MB |
299 | wm8731->playback_fs = params_rate(params); |
300 | ||
17a52fd6 | 301 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
302 | |
303 | /* bit size */ | |
304 | switch (params_format(params)) { | |
305 | case SNDRV_PCM_FORMAT_S16_LE: | |
306 | break; | |
307 | case SNDRV_PCM_FORMAT_S20_3LE: | |
308 | iface |= 0x0004; | |
309 | break; | |
310 | case SNDRV_PCM_FORMAT_S24_LE: | |
311 | iface |= 0x0008; | |
312 | break; | |
313 | } | |
40e0aa64 | 314 | |
dd31b310 MB |
315 | wm8731_set_deemph(codec); |
316 | ||
17a52fd6 | 317 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 318 | return 0; |
40e0aa64 RP |
319 | } |
320 | ||
e550e17f | 321 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
322 | { |
323 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 324 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
325 | |
326 | if (mute) | |
17a52fd6 | 327 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 328 | else |
17a52fd6 | 329 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
330 | return 0; |
331 | } | |
332 | ||
e550e17f | 333 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
334 | int clk_id, unsigned int freq, int dir) |
335 | { | |
336 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 337 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
b36d61d4 | 338 | |
9745e824 MB |
339 | switch (clk_id) { |
340 | case WM8731_SYSCLK_XTAL: | |
341 | case WM8731_SYSCLK_MCLK: | |
342 | wm8731->sysclk_type = clk_id; | |
343 | break; | |
344 | default: | |
345 | return -EINVAL; | |
346 | } | |
347 | ||
b36d61d4 FM |
348 | switch (freq) { |
349 | case 11289600: | |
350 | case 12000000: | |
351 | case 12288000: | |
352 | case 16934400: | |
353 | case 18432000: | |
354 | wm8731->sysclk = freq; | |
9745e824 MB |
355 | break; |
356 | default: | |
357 | return -EINVAL; | |
b36d61d4 | 358 | } |
9745e824 | 359 | |
ce6120cc | 360 | snd_soc_dapm_sync(&codec->dapm); |
9745e824 MB |
361 | |
362 | return 0; | |
b36d61d4 FM |
363 | } |
364 | ||
365 | ||
e550e17f | 366 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
367 | unsigned int fmt) |
368 | { | |
369 | struct snd_soc_codec *codec = codec_dai->codec; | |
370 | u16 iface = 0; | |
40e0aa64 RP |
371 | |
372 | /* set master/slave audio interface */ | |
b36d61d4 | 373 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
374 | case SND_SOC_DAIFMT_CBM_CFM: |
375 | iface |= 0x0040; | |
376 | break; | |
377 | case SND_SOC_DAIFMT_CBS_CFS: | |
378 | break; | |
b36d61d4 FM |
379 | default: |
380 | return -EINVAL; | |
40e0aa64 | 381 | } |
40e0aa64 RP |
382 | |
383 | /* interface format */ | |
b36d61d4 | 384 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
385 | case SND_SOC_DAIFMT_I2S: |
386 | iface |= 0x0002; | |
387 | break; | |
388 | case SND_SOC_DAIFMT_RIGHT_J: | |
389 | break; | |
390 | case SND_SOC_DAIFMT_LEFT_J: | |
391 | iface |= 0x0001; | |
392 | break; | |
393 | case SND_SOC_DAIFMT_DSP_A: | |
394 | iface |= 0x0003; | |
395 | break; | |
396 | case SND_SOC_DAIFMT_DSP_B: | |
397 | iface |= 0x0013; | |
398 | break; | |
b36d61d4 FM |
399 | default: |
400 | return -EINVAL; | |
40e0aa64 RP |
401 | } |
402 | ||
403 | /* clock inversion */ | |
b36d61d4 | 404 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
405 | case SND_SOC_DAIFMT_NB_NF: |
406 | break; | |
407 | case SND_SOC_DAIFMT_IB_IF: | |
408 | iface |= 0x0090; | |
409 | break; | |
410 | case SND_SOC_DAIFMT_IB_NF: | |
411 | iface |= 0x0080; | |
412 | break; | |
413 | case SND_SOC_DAIFMT_NB_IF: | |
414 | iface |= 0x0010; | |
415 | break; | |
b36d61d4 FM |
416 | default: |
417 | return -EINVAL; | |
40e0aa64 RP |
418 | } |
419 | ||
420 | /* set iface */ | |
17a52fd6 | 421 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
422 | return 0; |
423 | } | |
424 | ||
0be9898a MB |
425 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
426 | enum snd_soc_bias_level level) | |
40e0aa64 | 427 | { |
06ae9988 | 428 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
9bf311fe | 429 | int ret; |
22d22ee5 | 430 | u16 reg; |
40e0aa64 | 431 | |
0be9898a MB |
432 | switch (level) { |
433 | case SND_SOC_BIAS_ON: | |
40e0aa64 | 434 | break; |
0be9898a | 435 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 436 | break; |
0be9898a | 437 | case SND_SOC_BIAS_STANDBY: |
ce6120cc | 438 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
06ae9988 MB |
439 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
440 | wm8731->supplies); | |
441 | if (ret != 0) | |
442 | return ret; | |
443 | ||
9bf311fe | 444 | snd_soc_cache_sync(codec); |
06ae9988 MB |
445 | } |
446 | ||
22d22ee5 | 447 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
448 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
449 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 450 | break; |
0be9898a | 451 | case SND_SOC_BIAS_OFF: |
17a52fd6 | 452 | snd_soc_write(codec, WM8731_PWR, 0xffff); |
06ae9988 MB |
453 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
454 | wm8731->supplies); | |
ed3e80c4 | 455 | codec->cache_sync = 1; |
40e0aa64 RP |
456 | break; |
457 | } | |
ce6120cc | 458 | codec->dapm.bias_level = level; |
40e0aa64 RP |
459 | return 0; |
460 | } | |
461 | ||
e135443e | 462 | #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 |
b36d61d4 FM |
463 | |
464 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
465 | SNDRV_PCM_FMTBIT_S24_LE) | |
466 | ||
85e7652d | 467 | static const struct snd_soc_dai_ops wm8731_dai_ops = { |
6335d055 | 468 | .hw_params = wm8731_hw_params, |
6335d055 EM |
469 | .digital_mute = wm8731_mute, |
470 | .set_sysclk = wm8731_set_dai_sysclk, | |
471 | .set_fmt = wm8731_set_dai_fmt, | |
472 | }; | |
473 | ||
f0fba2ad LG |
474 | static struct snd_soc_dai_driver wm8731_dai = { |
475 | .name = "wm8731-hifi", | |
40e0aa64 RP |
476 | .playback = { |
477 | .stream_name = "Playback", | |
478 | .channels_min = 1, | |
479 | .channels_max = 2, | |
b36d61d4 FM |
480 | .rates = WM8731_RATES, |
481 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
482 | .capture = { |
483 | .stream_name = "Capture", | |
484 | .channels_min = 1, | |
485 | .channels_max = 2, | |
b36d61d4 FM |
486 | .rates = WM8731_RATES, |
487 | .formats = WM8731_FORMATS,}, | |
6335d055 | 488 | .ops = &wm8731_dai_ops, |
4934482d | 489 | .symmetric_rates = 1, |
40e0aa64 | 490 | }; |
40e0aa64 | 491 | |
b3b50b3f | 492 | #ifdef CONFIG_PM |
84b315ee | 493 | static int wm8731_suspend(struct snd_soc_codec *codec) |
40e0aa64 | 494 | { |
0be9898a | 495 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
06ae9988 | 496 | |
40e0aa64 RP |
497 | return 0; |
498 | } | |
499 | ||
f0fba2ad | 500 | static int wm8731_resume(struct snd_soc_codec *codec) |
40e0aa64 | 501 | { |
0be9898a | 502 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
7dea7c01 | 503 | |
40e0aa64 RP |
504 | return 0; |
505 | } | |
b3b50b3f MB |
506 | #else |
507 | #define wm8731_suspend NULL | |
508 | #define wm8731_resume NULL | |
509 | #endif | |
40e0aa64 | 510 | |
f0fba2ad | 511 | static int wm8731_probe(struct snd_soc_codec *codec) |
40e0aa64 | 512 | { |
f0fba2ad LG |
513 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
514 | int ret = 0, i; | |
5998102b | 515 | |
f0fba2ad | 516 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8731->control_type); |
17a52fd6 MB |
517 | if (ret < 0) { |
518 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
f0fba2ad | 519 | return ret; |
17a52fd6 MB |
520 | } |
521 | ||
7dea7c01 MB |
522 | for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++) |
523 | wm8731->supplies[i].supply = wm8731_supply_names[i]; | |
524 | ||
525 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8731->supplies), | |
526 | wm8731->supplies); | |
527 | if (ret != 0) { | |
528 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
f0fba2ad | 529 | return ret; |
7dea7c01 MB |
530 | } |
531 | ||
532 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), | |
533 | wm8731->supplies); | |
534 | if (ret != 0) { | |
535 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
536 | goto err_regulator_get; | |
537 | } | |
538 | ||
519cf2df MB |
539 | ret = wm8731_reset(codec); |
540 | if (ret < 0) { | |
fe5422fc | 541 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
7dea7c01 | 542 | goto err_regulator_enable; |
519cf2df MB |
543 | } |
544 | ||
5998102b MB |
545 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
546 | ||
547 | /* Latch the update bits */ | |
17a52fd6 MB |
548 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
549 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); | |
550 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); | |
551 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); | |
5998102b | 552 | |
ce3bdaa8 | 553 | /* Disable bypass path by default */ |
2062ea52 | 554 | snd_soc_update_bits(codec, WM8731_APANA, 0x8, 0); |
ce3bdaa8 | 555 | |
06ae9988 MB |
556 | /* Regulators will have been enabled by bias management */ |
557 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
558 | ||
a8035c8f | 559 | return 0; |
fe5422fc | 560 | |
7dea7c01 MB |
561 | err_regulator_enable: |
562 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
563 | err_regulator_get: | |
564 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
f0fba2ad | 565 | |
fe5422fc | 566 | return ret; |
a8035c8f MB |
567 | } |
568 | ||
f0fba2ad LG |
569 | /* power down chip */ |
570 | static int wm8731_remove(struct snd_soc_codec *codec) | |
5998102b | 571 | { |
f0fba2ad LG |
572 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
573 | ||
574 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
575 | ||
576 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
7dea7c01 | 577 | regulator_bulk_free(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); |
f0fba2ad LG |
578 | |
579 | return 0; | |
5998102b | 580 | } |
a8035c8f | 581 | |
f0fba2ad LG |
582 | static struct snd_soc_codec_driver soc_codec_dev_wm8731 = { |
583 | .probe = wm8731_probe, | |
584 | .remove = wm8731_remove, | |
585 | .suspend = wm8731_suspend, | |
586 | .resume = wm8731_resume, | |
587 | .set_bias_level = wm8731_set_bias_level, | |
e5eec34c | 588 | .reg_cache_size = ARRAY_SIZE(wm8731_reg), |
f0fba2ad LG |
589 | .reg_word_size = sizeof(u16), |
590 | .reg_cache_default = wm8731_reg, | |
5e251aec MB |
591 | .dapm_widgets = wm8731_dapm_widgets, |
592 | .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets), | |
593 | .dapm_routes = wm8731_intercon, | |
594 | .num_dapm_routes = ARRAY_SIZE(wm8731_intercon), | |
cb555318 MB |
595 | .controls = wm8731_snd_controls, |
596 | .num_controls = ARRAY_SIZE(wm8731_snd_controls), | |
f0fba2ad LG |
597 | }; |
598 | ||
a7f96e4d MB |
599 | static const struct of_device_id wm8731_of_match[] = { |
600 | { .compatible = "wlf,wm8731", }, | |
601 | { } | |
602 | }; | |
603 | ||
604 | MODULE_DEVICE_TABLE(of, wm8731_of_match); | |
605 | ||
5998102b | 606 | #if defined(CONFIG_SPI_MASTER) |
5998102b MB |
607 | static int __devinit wm8731_spi_probe(struct spi_device *spi) |
608 | { | |
5998102b | 609 | struct wm8731_priv *wm8731; |
f0fba2ad | 610 | int ret; |
5998102b MB |
611 | |
612 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); | |
613 | if (wm8731 == NULL) | |
614 | return -ENOMEM; | |
615 | ||
f0fba2ad LG |
616 | wm8731->control_type = SND_SOC_SPI; |
617 | spi_set_drvdata(spi, wm8731); | |
93b760b7 | 618 | |
f0fba2ad LG |
619 | ret = snd_soc_register_codec(&spi->dev, |
620 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
621 | if (ret < 0) | |
622 | kfree(wm8731); | |
623 | return ret; | |
5998102b MB |
624 | } |
625 | ||
626 | static int __devexit wm8731_spi_remove(struct spi_device *spi) | |
627 | { | |
f0fba2ad LG |
628 | snd_soc_unregister_codec(&spi->dev); |
629 | kfree(spi_get_drvdata(spi)); | |
5998102b MB |
630 | return 0; |
631 | } | |
632 | ||
633 | static struct spi_driver wm8731_spi_driver = { | |
634 | .driver = { | |
99b59f3c | 635 | .name = "wm8731", |
5998102b | 636 | .owner = THIS_MODULE, |
a7f96e4d | 637 | .of_match_table = wm8731_of_match, |
5998102b MB |
638 | }, |
639 | .probe = wm8731_spi_probe, | |
640 | .remove = __devexit_p(wm8731_spi_remove), | |
641 | }; | |
a8035c8f MB |
642 | #endif /* CONFIG_SPI_MASTER */ |
643 | ||
644 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
c6f29811 MB |
645 | static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, |
646 | const struct i2c_device_id *id) | |
a8035c8f | 647 | { |
5998102b | 648 | struct wm8731_priv *wm8731; |
f0fba2ad | 649 | int ret; |
a8035c8f | 650 | |
5998102b MB |
651 | wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL); |
652 | if (wm8731 == NULL) | |
653 | return -ENOMEM; | |
654 | ||
5998102b | 655 | i2c_set_clientdata(i2c, wm8731); |
f0fba2ad | 656 | wm8731->control_type = SND_SOC_I2C; |
a8035c8f | 657 | |
f0fba2ad LG |
658 | ret = snd_soc_register_codec(&i2c->dev, |
659 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
660 | if (ret < 0) | |
661 | kfree(wm8731); | |
662 | return ret; | |
a8035c8f MB |
663 | } |
664 | ||
c6f29811 | 665 | static __devexit int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 666 | { |
f0fba2ad LG |
667 | snd_soc_unregister_codec(&client->dev); |
668 | kfree(i2c_get_clientdata(client)); | |
a8035c8f MB |
669 | return 0; |
670 | } | |
671 | ||
672 | static const struct i2c_device_id wm8731_i2c_id[] = { | |
673 | { "wm8731", 0 }, | |
674 | { } | |
675 | }; | |
676 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
677 | ||
678 | static struct i2c_driver wm8731_i2c_driver = { | |
679 | .driver = { | |
99b59f3c | 680 | .name = "wm8731", |
a8035c8f | 681 | .owner = THIS_MODULE, |
a7f96e4d | 682 | .of_match_table = wm8731_of_match, |
a8035c8f MB |
683 | }, |
684 | .probe = wm8731_i2c_probe, | |
c6f29811 | 685 | .remove = __devexit_p(wm8731_i2c_remove), |
a8035c8f MB |
686 | .id_table = wm8731_i2c_id, |
687 | }; | |
688 | #endif | |
689 | ||
c9b3a40f | 690 | static int __init wm8731_modinit(void) |
64089b84 | 691 | { |
f0fba2ad | 692 | int ret = 0; |
5998102b MB |
693 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
694 | ret = i2c_add_driver(&wm8731_i2c_driver); | |
695 | if (ret != 0) { | |
696 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
697 | ret); | |
698 | } | |
699 | #endif | |
700 | #if defined(CONFIG_SPI_MASTER) | |
701 | ret = spi_register_driver(&wm8731_spi_driver); | |
702 | if (ret != 0) { | |
703 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
704 | ret); | |
705 | } | |
706 | #endif | |
f0fba2ad | 707 | return ret; |
64089b84 MB |
708 | } |
709 | module_init(wm8731_modinit); | |
710 | ||
711 | static void __exit wm8731_exit(void) | |
712 | { | |
5998102b MB |
713 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
714 | i2c_del_driver(&wm8731_i2c_driver); | |
715 | #endif | |
716 | #if defined(CONFIG_SPI_MASTER) | |
717 | spi_unregister_driver(&wm8731_spi_driver); | |
718 | #endif | |
64089b84 MB |
719 | } |
720 | module_exit(wm8731_exit); | |
721 | ||
40e0aa64 RP |
722 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
723 | MODULE_AUTHOR("Richard Purdie"); | |
724 | MODULE_LICENSE("GPL"); |