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40e0aa64 RP |
1 | /* |
2 | * wm8731.c -- WM8731 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2005 Openedhand Ltd. | |
656baaeb | 5 | * Copyright 2006-12 Wolfson Microelectronics, plc |
40e0aa64 RP |
6 | * |
7 | * Author: Richard Purdie <richard@openedhand.com> | |
8 | * | |
9 | * Based on wm8753.c by Liam Girdwood | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/moduleparam.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/pm.h> | |
21 | #include <linux/i2c.h> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
05d448e2 | 23 | #include <linux/regmap.h> |
7dea7c01 | 24 | #include <linux/regulator/consumer.h> |
d2a40355 | 25 | #include <linux/spi/spi.h> |
a7f96e4d | 26 | #include <linux/of_device.h> |
40e0aa64 RP |
27 | #include <sound/core.h> |
28 | #include <sound/pcm.h> | |
29 | #include <sound/pcm_params.h> | |
30 | #include <sound/soc.h> | |
40e0aa64 | 31 | #include <sound/initval.h> |
d00efa64 | 32 | #include <sound/tlv.h> |
40e0aa64 RP |
33 | |
34 | #include "wm8731.h" | |
35 | ||
7dea7c01 MB |
36 | #define WM8731_NUM_SUPPLIES 4 |
37 | static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { | |
38 | "AVDD", | |
39 | "HPVDD", | |
40 | "DCVDD", | |
41 | "DBVDD", | |
42 | }; | |
43 | ||
b36d61d4 FM |
44 | /* codec private data */ |
45 | struct wm8731_priv { | |
05d448e2 | 46 | struct regmap *regmap; |
7dea7c01 | 47 | struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; |
0890c2b7 | 48 | const struct snd_pcm_hw_constraint_list *constraints; |
b36d61d4 | 49 | unsigned int sysclk; |
9745e824 | 50 | int sysclk_type; |
dd31b310 MB |
51 | int playback_fs; |
52 | bool deemph; | |
b36d61d4 FM |
53 | }; |
54 | ||
a8035c8f | 55 | |
40e0aa64 RP |
56 | /* |
57 | * wm8731 register cache | |
40e0aa64 | 58 | */ |
05d448e2 MB |
59 | static const struct reg_default wm8731_reg_defaults[] = { |
60 | { 0, 0x0097 }, | |
61 | { 1, 0x0097 }, | |
62 | { 2, 0x0079 }, | |
63 | { 3, 0x0079 }, | |
64 | { 4, 0x000a }, | |
65 | { 5, 0x0008 }, | |
66 | { 6, 0x009f }, | |
67 | { 7, 0x000a }, | |
68 | { 8, 0x0000 }, | |
69 | { 9, 0x0000 }, | |
40e0aa64 RP |
70 | }; |
71 | ||
05d448e2 MB |
72 | static bool wm8731_volatile(struct device *dev, unsigned int reg) |
73 | { | |
74 | return reg == WM8731_RESET; | |
75 | } | |
76 | ||
77 | static bool wm8731_writeable(struct device *dev, unsigned int reg) | |
78 | { | |
79 | return reg <= WM8731_RESET; | |
80 | } | |
81 | ||
17a52fd6 | 82 | #define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0) |
40e0aa64 RP |
83 | |
84 | static const char *wm8731_input_select[] = {"Line In", "Mic"}; | |
59f72970 | 85 | |
9e74b14a TI |
86 | static SOC_ENUM_SINGLE_DECL(wm8731_insel_enum, |
87 | WM8731_APANA, 2, wm8731_input_select); | |
59f72970 | 88 | |
dd31b310 MB |
89 | static int wm8731_deemph[] = { 0, 32000, 44100, 48000 }; |
90 | ||
91 | static int wm8731_set_deemph(struct snd_soc_codec *codec) | |
92 | { | |
93 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); | |
94 | int val, i, best; | |
95 | ||
96 | /* If we're using deemphasis select the nearest available sample | |
97 | * rate. | |
98 | */ | |
99 | if (wm8731->deemph) { | |
100 | best = 1; | |
101 | for (i = 2; i < ARRAY_SIZE(wm8731_deemph); i++) { | |
102 | if (abs(wm8731_deemph[i] - wm8731->playback_fs) < | |
103 | abs(wm8731_deemph[best] - wm8731->playback_fs)) | |
104 | best = i; | |
105 | } | |
106 | ||
107 | val = best << 1; | |
108 | } else { | |
109 | best = 0; | |
110 | val = 0; | |
111 | } | |
112 | ||
113 | dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n", | |
114 | best, wm8731_deemph[best]); | |
115 | ||
116 | return snd_soc_update_bits(codec, WM8731_APDIGI, 0x6, val); | |
117 | } | |
118 | ||
119 | static int wm8731_get_deemph(struct snd_kcontrol *kcontrol, | |
120 | struct snd_ctl_elem_value *ucontrol) | |
121 | { | |
ea53bf77 | 122 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
dd31b310 MB |
123 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
124 | ||
125 | ucontrol->value.enumerated.item[0] = wm8731->deemph; | |
126 | ||
127 | return 0; | |
128 | } | |
129 | ||
130 | static int wm8731_put_deemph(struct snd_kcontrol *kcontrol, | |
131 | struct snd_ctl_elem_value *ucontrol) | |
132 | { | |
ea53bf77 | 133 | struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); |
dd31b310 MB |
134 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
135 | int deemph = ucontrol->value.enumerated.item[0]; | |
136 | int ret = 0; | |
137 | ||
138 | if (deemph > 1) | |
139 | return -EINVAL; | |
140 | ||
141 | mutex_lock(&codec->mutex); | |
142 | if (wm8731->deemph != deemph) { | |
143 | wm8731->deemph = deemph; | |
59f72970 | 144 | |
dd31b310 MB |
145 | wm8731_set_deemph(codec); |
146 | ||
147 | ret = 1; | |
148 | } | |
149 | mutex_unlock(&codec->mutex); | |
150 | ||
151 | return ret; | |
152 | } | |
40e0aa64 | 153 | |
d00efa64 MB |
154 | static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0); |
155 | static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0); | |
156 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
d921184e | 157 | static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 2000, 0); |
d00efa64 | 158 | |
40e0aa64 RP |
159 | static const struct snd_kcontrol_new wm8731_snd_controls[] = { |
160 | ||
d00efa64 MB |
161 | SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V, |
162 | 0, 127, 0, out_tlv), | |
bd903b6e LG |
163 | SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V, |
164 | 7, 1, 0), | |
40e0aa64 | 165 | |
d00efa64 MB |
166 | SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0, |
167 | in_tlv), | |
40e0aa64 RP |
168 | SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1), |
169 | ||
d921184e | 170 | SOC_SINGLE_TLV("Mic Boost Volume", WM8731_APANA, 0, 1, 0, mic_tlv), |
ef38ed88 | 171 | SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1), |
40e0aa64 | 172 | |
d00efa64 MB |
173 | SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1, |
174 | sidetone_tlv), | |
40e0aa64 RP |
175 | |
176 | SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1), | |
177 | SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0), | |
178 | ||
dd31b310 MB |
179 | SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0, |
180 | wm8731_get_deemph, wm8731_put_deemph), | |
40e0aa64 RP |
181 | }; |
182 | ||
40e0aa64 RP |
183 | /* Output Mixer */ |
184 | static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = { | |
185 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0), | |
186 | SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0), | |
187 | SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0), | |
188 | }; | |
189 | ||
190 | /* Input mux */ | |
191 | static const struct snd_kcontrol_new wm8731_input_mux_controls = | |
59f72970 | 192 | SOC_DAPM_ENUM("Input Select", wm8731_insel_enum); |
40e0aa64 RP |
193 | |
194 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
8a27bd9a | 195 | SND_SOC_DAPM_SUPPLY("ACTIVE",WM8731_ACTIVE, 0, 0, NULL, 0), |
9745e824 | 196 | SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0), |
40e0aa64 RP |
197 | SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1, |
198 | &wm8731_output_mixer_controls[0], | |
199 | ARRAY_SIZE(wm8731_output_mixer_controls)), | |
200 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1), | |
201 | SND_SOC_DAPM_OUTPUT("LOUT"), | |
202 | SND_SOC_DAPM_OUTPUT("LHPOUT"), | |
203 | SND_SOC_DAPM_OUTPUT("ROUT"), | |
204 | SND_SOC_DAPM_OUTPUT("RHPOUT"), | |
205 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1), | |
206 | SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls), | |
207 | SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0), | |
208 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1), | |
209 | SND_SOC_DAPM_INPUT("MICIN"), | |
210 | SND_SOC_DAPM_INPUT("RLINEIN"), | |
211 | SND_SOC_DAPM_INPUT("LLINEIN"), | |
212 | }; | |
213 | ||
9745e824 MB |
214 | static int wm8731_check_osc(struct snd_soc_dapm_widget *source, |
215 | struct snd_soc_dapm_widget *sink) | |
216 | { | |
217 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(source->codec); | |
218 | ||
5a195b44 | 219 | return wm8731->sysclk_type == WM8731_SYSCLK_XTAL; |
9745e824 MB |
220 | } |
221 | ||
5e251aec | 222 | static const struct snd_soc_dapm_route wm8731_intercon[] = { |
9745e824 MB |
223 | {"DAC", NULL, "OSC", wm8731_check_osc}, |
224 | {"ADC", NULL, "OSC", wm8731_check_osc}, | |
8a27bd9a MB |
225 | {"DAC", NULL, "ACTIVE"}, |
226 | {"ADC", NULL, "ACTIVE"}, | |
9745e824 | 227 | |
40e0aa64 RP |
228 | /* output mixer */ |
229 | {"Output Mixer", "Line Bypass Switch", "Line Input"}, | |
230 | {"Output Mixer", "HiFi Playback Switch", "DAC"}, | |
231 | {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"}, | |
232 | ||
233 | /* outputs */ | |
234 | {"RHPOUT", NULL, "Output Mixer"}, | |
235 | {"ROUT", NULL, "Output Mixer"}, | |
236 | {"LHPOUT", NULL, "Output Mixer"}, | |
237 | {"LOUT", NULL, "Output Mixer"}, | |
238 | ||
239 | /* input mux */ | |
240 | {"Input Mux", "Line In", "Line Input"}, | |
241 | {"Input Mux", "Mic", "Mic Bias"}, | |
242 | {"ADC", NULL, "Input Mux"}, | |
243 | ||
244 | /* inputs */ | |
245 | {"Line Input", NULL, "LLINEIN"}, | |
246 | {"Line Input", NULL, "RLINEIN"}, | |
247 | {"Mic Bias", NULL, "MICIN"}, | |
40e0aa64 RP |
248 | }; |
249 | ||
40e0aa64 RP |
250 | struct _coeff_div { |
251 | u32 mclk; | |
252 | u32 rate; | |
253 | u16 fs; | |
254 | u8 sr:4; | |
255 | u8 bosr:1; | |
256 | u8 usb:1; | |
257 | }; | |
258 | ||
259 | /* codec mclk clock divider coefficients */ | |
260 | static const struct _coeff_div coeff_div[] = { | |
261 | /* 48k */ | |
262 | {12288000, 48000, 256, 0x0, 0x0, 0x0}, | |
263 | {18432000, 48000, 384, 0x0, 0x1, 0x0}, | |
264 | {12000000, 48000, 250, 0x0, 0x0, 0x1}, | |
265 | ||
266 | /* 32k */ | |
267 | {12288000, 32000, 384, 0x6, 0x0, 0x0}, | |
268 | {18432000, 32000, 576, 0x6, 0x1, 0x0}, | |
298a2c75 | 269 | {12000000, 32000, 375, 0x6, 0x0, 0x1}, |
40e0aa64 RP |
270 | |
271 | /* 8k */ | |
272 | {12288000, 8000, 1536, 0x3, 0x0, 0x0}, | |
273 | {18432000, 8000, 2304, 0x3, 0x1, 0x0}, | |
274 | {11289600, 8000, 1408, 0xb, 0x0, 0x0}, | |
275 | {16934400, 8000, 2112, 0xb, 0x1, 0x0}, | |
276 | {12000000, 8000, 1500, 0x3, 0x0, 0x1}, | |
277 | ||
278 | /* 96k */ | |
279 | {12288000, 96000, 128, 0x7, 0x0, 0x0}, | |
280 | {18432000, 96000, 192, 0x7, 0x1, 0x0}, | |
281 | {12000000, 96000, 125, 0x7, 0x0, 0x1}, | |
282 | ||
283 | /* 44.1k */ | |
284 | {11289600, 44100, 256, 0x8, 0x0, 0x0}, | |
285 | {16934400, 44100, 384, 0x8, 0x1, 0x0}, | |
286 | {12000000, 44100, 272, 0x8, 0x1, 0x1}, | |
287 | ||
288 | /* 88.2k */ | |
289 | {11289600, 88200, 128, 0xf, 0x0, 0x0}, | |
290 | {16934400, 88200, 192, 0xf, 0x1, 0x0}, | |
291 | {12000000, 88200, 136, 0xf, 0x1, 0x1}, | |
292 | }; | |
293 | ||
0890c2b7 RG |
294 | /* rates constraints */ |
295 | static const unsigned int wm8731_rates_12000000[] = { | |
296 | 8000, 32000, 44100, 48000, 96000, 88200, | |
297 | }; | |
298 | ||
299 | static const unsigned int wm8731_rates_12288000_18432000[] = { | |
300 | 8000, 32000, 48000, 96000, | |
301 | }; | |
302 | ||
303 | static const unsigned int wm8731_rates_11289600_16934400[] = { | |
304 | 8000, 44100, 88200, | |
305 | }; | |
306 | ||
307 | static const struct snd_pcm_hw_constraint_list wm8731_constraints_12000000 = { | |
308 | .list = wm8731_rates_12000000, | |
309 | .count = ARRAY_SIZE(wm8731_rates_12000000), | |
310 | }; | |
311 | ||
312 | static const | |
313 | struct snd_pcm_hw_constraint_list wm8731_constraints_12288000_18432000 = { | |
314 | .list = wm8731_rates_12288000_18432000, | |
315 | .count = ARRAY_SIZE(wm8731_rates_12288000_18432000), | |
316 | }; | |
317 | ||
318 | static const | |
319 | struct snd_pcm_hw_constraint_list wm8731_constraints_11289600_16934400 = { | |
320 | .list = wm8731_rates_11289600_16934400, | |
321 | .count = ARRAY_SIZE(wm8731_rates_11289600_16934400), | |
322 | }; | |
323 | ||
40e0aa64 RP |
324 | static inline int get_coeff(int mclk, int rate) |
325 | { | |
326 | int i; | |
327 | ||
328 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
329 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
330 | return i; | |
331 | } | |
332 | return 0; | |
333 | } | |
334 | ||
b36d61d4 | 335 | static int wm8731_hw_params(struct snd_pcm_substream *substream, |
dee89c4d MB |
336 | struct snd_pcm_hw_params *params, |
337 | struct snd_soc_dai *dai) | |
40e0aa64 | 338 | { |
f0fba2ad | 339 | struct snd_soc_codec *codec = dai->codec; |
b2c812e2 | 340 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
17a52fd6 | 341 | u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3; |
b36d61d4 FM |
342 | int i = get_coeff(wm8731->sysclk, params_rate(params)); |
343 | u16 srate = (coeff_div[i].sr << 2) | | |
344 | (coeff_div[i].bosr << 1) | coeff_div[i].usb; | |
40e0aa64 | 345 | |
dd31b310 MB |
346 | wm8731->playback_fs = params_rate(params); |
347 | ||
17a52fd6 | 348 | snd_soc_write(codec, WM8731_SRATE, srate); |
b36d61d4 FM |
349 | |
350 | /* bit size */ | |
351 | switch (params_format(params)) { | |
352 | case SNDRV_PCM_FORMAT_S16_LE: | |
353 | break; | |
354 | case SNDRV_PCM_FORMAT_S20_3LE: | |
355 | iface |= 0x0004; | |
356 | break; | |
357 | case SNDRV_PCM_FORMAT_S24_LE: | |
358 | iface |= 0x0008; | |
359 | break; | |
360 | } | |
40e0aa64 | 361 | |
dd31b310 MB |
362 | wm8731_set_deemph(codec); |
363 | ||
17a52fd6 | 364 | snd_soc_write(codec, WM8731_IFACE, iface); |
b36d61d4 | 365 | return 0; |
40e0aa64 RP |
366 | } |
367 | ||
e550e17f | 368 | static int wm8731_mute(struct snd_soc_dai *dai, int mute) |
b36d61d4 FM |
369 | { |
370 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 371 | u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7; |
b36d61d4 FM |
372 | |
373 | if (mute) | |
17a52fd6 | 374 | snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8); |
b36d61d4 | 375 | else |
17a52fd6 | 376 | snd_soc_write(codec, WM8731_APDIGI, mute_reg); |
b36d61d4 FM |
377 | return 0; |
378 | } | |
379 | ||
e550e17f | 380 | static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
381 | int clk_id, unsigned int freq, int dir) |
382 | { | |
383 | struct snd_soc_codec *codec = codec_dai->codec; | |
b2c812e2 | 384 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
b36d61d4 | 385 | |
9745e824 MB |
386 | switch (clk_id) { |
387 | case WM8731_SYSCLK_XTAL: | |
388 | case WM8731_SYSCLK_MCLK: | |
389 | wm8731->sysclk_type = clk_id; | |
390 | break; | |
391 | default: | |
392 | return -EINVAL; | |
393 | } | |
394 | ||
b36d61d4 | 395 | switch (freq) { |
0890c2b7 RG |
396 | case 0: |
397 | wm8731->constraints = NULL; | |
398 | break; | |
b36d61d4 | 399 | case 12000000: |
0890c2b7 RG |
400 | wm8731->constraints = &wm8731_constraints_12000000; |
401 | break; | |
b36d61d4 | 402 | case 12288000: |
b36d61d4 | 403 | case 18432000: |
0890c2b7 RG |
404 | wm8731->constraints = &wm8731_constraints_12288000_18432000; |
405 | break; | |
406 | case 16934400: | |
407 | case 11289600: | |
408 | wm8731->constraints = &wm8731_constraints_11289600_16934400; | |
9745e824 MB |
409 | break; |
410 | default: | |
411 | return -EINVAL; | |
b36d61d4 | 412 | } |
9745e824 | 413 | |
0890c2b7 RG |
414 | wm8731->sysclk = freq; |
415 | ||
ce6120cc | 416 | snd_soc_dapm_sync(&codec->dapm); |
9745e824 MB |
417 | |
418 | return 0; | |
b36d61d4 FM |
419 | } |
420 | ||
421 | ||
e550e17f | 422 | static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai, |
b36d61d4 FM |
423 | unsigned int fmt) |
424 | { | |
425 | struct snd_soc_codec *codec = codec_dai->codec; | |
426 | u16 iface = 0; | |
40e0aa64 RP |
427 | |
428 | /* set master/slave audio interface */ | |
b36d61d4 | 429 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
40e0aa64 RP |
430 | case SND_SOC_DAIFMT_CBM_CFM: |
431 | iface |= 0x0040; | |
432 | break; | |
433 | case SND_SOC_DAIFMT_CBS_CFS: | |
434 | break; | |
b36d61d4 FM |
435 | default: |
436 | return -EINVAL; | |
40e0aa64 | 437 | } |
40e0aa64 RP |
438 | |
439 | /* interface format */ | |
b36d61d4 | 440 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
40e0aa64 RP |
441 | case SND_SOC_DAIFMT_I2S: |
442 | iface |= 0x0002; | |
443 | break; | |
444 | case SND_SOC_DAIFMT_RIGHT_J: | |
445 | break; | |
446 | case SND_SOC_DAIFMT_LEFT_J: | |
447 | iface |= 0x0001; | |
448 | break; | |
449 | case SND_SOC_DAIFMT_DSP_A: | |
b4af6ef9 | 450 | iface |= 0x0013; |
40e0aa64 RP |
451 | break; |
452 | case SND_SOC_DAIFMT_DSP_B: | |
b4af6ef9 | 453 | iface |= 0x0003; |
40e0aa64 | 454 | break; |
b36d61d4 FM |
455 | default: |
456 | return -EINVAL; | |
40e0aa64 RP |
457 | } |
458 | ||
459 | /* clock inversion */ | |
b36d61d4 | 460 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
40e0aa64 RP |
461 | case SND_SOC_DAIFMT_NB_NF: |
462 | break; | |
463 | case SND_SOC_DAIFMT_IB_IF: | |
464 | iface |= 0x0090; | |
465 | break; | |
466 | case SND_SOC_DAIFMT_IB_NF: | |
467 | iface |= 0x0080; | |
468 | break; | |
469 | case SND_SOC_DAIFMT_NB_IF: | |
470 | iface |= 0x0010; | |
471 | break; | |
b36d61d4 FM |
472 | default: |
473 | return -EINVAL; | |
40e0aa64 RP |
474 | } |
475 | ||
476 | /* set iface */ | |
17a52fd6 | 477 | snd_soc_write(codec, WM8731_IFACE, iface); |
40e0aa64 RP |
478 | return 0; |
479 | } | |
480 | ||
0be9898a MB |
481 | static int wm8731_set_bias_level(struct snd_soc_codec *codec, |
482 | enum snd_soc_bias_level level) | |
40e0aa64 | 483 | { |
06ae9988 | 484 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
9bf311fe | 485 | int ret; |
22d22ee5 | 486 | u16 reg; |
40e0aa64 | 487 | |
0be9898a MB |
488 | switch (level) { |
489 | case SND_SOC_BIAS_ON: | |
40e0aa64 | 490 | break; |
0be9898a | 491 | case SND_SOC_BIAS_PREPARE: |
40e0aa64 | 492 | break; |
0be9898a | 493 | case SND_SOC_BIAS_STANDBY: |
ce6120cc | 494 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
06ae9988 MB |
495 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), |
496 | wm8731->supplies); | |
497 | if (ret != 0) | |
498 | return ret; | |
499 | ||
05d448e2 | 500 | regcache_sync(wm8731->regmap); |
06ae9988 MB |
501 | } |
502 | ||
22d22ee5 | 503 | /* Clear PWROFF, gate CLKOUT, everything else as-is */ |
17a52fd6 MB |
504 | reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f; |
505 | snd_soc_write(codec, WM8731_PWR, reg | 0x0040); | |
40e0aa64 | 506 | break; |
0be9898a | 507 | case SND_SOC_BIAS_OFF: |
17a52fd6 | 508 | snd_soc_write(codec, WM8731_PWR, 0xffff); |
06ae9988 MB |
509 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), |
510 | wm8731->supplies); | |
05d448e2 | 511 | regcache_mark_dirty(wm8731->regmap); |
40e0aa64 RP |
512 | break; |
513 | } | |
ce6120cc | 514 | codec->dapm.bias_level = level; |
40e0aa64 RP |
515 | return 0; |
516 | } | |
517 | ||
0890c2b7 RG |
518 | static int wm8731_startup(struct snd_pcm_substream *substream, |
519 | struct snd_soc_dai *dai) | |
520 | { | |
521 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(dai->codec); | |
522 | ||
523 | if (wm8731->constraints) | |
524 | snd_pcm_hw_constraint_list(substream->runtime, 0, | |
525 | SNDRV_PCM_HW_PARAM_RATE, | |
526 | wm8731->constraints); | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
e135443e | 531 | #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 |
b36d61d4 FM |
532 | |
533 | #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
534 | SNDRV_PCM_FMTBIT_S24_LE) | |
535 | ||
85e7652d | 536 | static const struct snd_soc_dai_ops wm8731_dai_ops = { |
0890c2b7 | 537 | .startup = wm8731_startup, |
6335d055 | 538 | .hw_params = wm8731_hw_params, |
6335d055 EM |
539 | .digital_mute = wm8731_mute, |
540 | .set_sysclk = wm8731_set_dai_sysclk, | |
541 | .set_fmt = wm8731_set_dai_fmt, | |
542 | }; | |
543 | ||
f0fba2ad LG |
544 | static struct snd_soc_dai_driver wm8731_dai = { |
545 | .name = "wm8731-hifi", | |
40e0aa64 RP |
546 | .playback = { |
547 | .stream_name = "Playback", | |
548 | .channels_min = 1, | |
549 | .channels_max = 2, | |
b36d61d4 FM |
550 | .rates = WM8731_RATES, |
551 | .formats = WM8731_FORMATS,}, | |
40e0aa64 RP |
552 | .capture = { |
553 | .stream_name = "Capture", | |
554 | .channels_min = 1, | |
555 | .channels_max = 2, | |
b36d61d4 FM |
556 | .rates = WM8731_RATES, |
557 | .formats = WM8731_FORMATS,}, | |
6335d055 | 558 | .ops = &wm8731_dai_ops, |
4934482d | 559 | .symmetric_rates = 1, |
40e0aa64 | 560 | }; |
40e0aa64 | 561 | |
b3b50b3f | 562 | #ifdef CONFIG_PM |
84b315ee | 563 | static int wm8731_suspend(struct snd_soc_codec *codec) |
40e0aa64 | 564 | { |
0be9898a | 565 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); |
06ae9988 | 566 | |
40e0aa64 RP |
567 | return 0; |
568 | } | |
569 | ||
f0fba2ad | 570 | static int wm8731_resume(struct snd_soc_codec *codec) |
40e0aa64 | 571 | { |
0be9898a | 572 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
7dea7c01 | 573 | |
40e0aa64 RP |
574 | return 0; |
575 | } | |
b3b50b3f MB |
576 | #else |
577 | #define wm8731_suspend NULL | |
578 | #define wm8731_resume NULL | |
579 | #endif | |
40e0aa64 | 580 | |
f0fba2ad | 581 | static int wm8731_probe(struct snd_soc_codec *codec) |
40e0aa64 | 582 | { |
f0fba2ad LG |
583 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
584 | int ret = 0, i; | |
5998102b | 585 | |
7dea7c01 MB |
586 | for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++) |
587 | wm8731->supplies[i].supply = wm8731_supply_names[i]; | |
588 | ||
3598aad5 | 589 | ret = devm_regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8731->supplies), |
7dea7c01 MB |
590 | wm8731->supplies); |
591 | if (ret != 0) { | |
592 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
f0fba2ad | 593 | return ret; |
7dea7c01 MB |
594 | } |
595 | ||
596 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies), | |
597 | wm8731->supplies); | |
598 | if (ret != 0) { | |
599 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
3598aad5 | 600 | return ret; |
7dea7c01 MB |
601 | } |
602 | ||
519cf2df MB |
603 | ret = wm8731_reset(codec); |
604 | if (ret < 0) { | |
fe5422fc | 605 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); |
7dea7c01 | 606 | goto err_regulator_enable; |
519cf2df MB |
607 | } |
608 | ||
5998102b MB |
609 | wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
610 | ||
611 | /* Latch the update bits */ | |
17a52fd6 MB |
612 | snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0); |
613 | snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0); | |
614 | snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0); | |
615 | snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0); | |
5998102b | 616 | |
ce3bdaa8 | 617 | /* Disable bypass path by default */ |
2062ea52 | 618 | snd_soc_update_bits(codec, WM8731_APANA, 0x8, 0); |
ce3bdaa8 | 619 | |
06ae9988 MB |
620 | /* Regulators will have been enabled by bias management */ |
621 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
622 | ||
a8035c8f | 623 | return 0; |
fe5422fc | 624 | |
7dea7c01 MB |
625 | err_regulator_enable: |
626 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
f0fba2ad | 627 | |
fe5422fc | 628 | return ret; |
a8035c8f MB |
629 | } |
630 | ||
f0fba2ad LG |
631 | /* power down chip */ |
632 | static int wm8731_remove(struct snd_soc_codec *codec) | |
5998102b | 633 | { |
f0fba2ad LG |
634 | struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); |
635 | ||
636 | wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
637 | ||
638 | regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); | |
f0fba2ad LG |
639 | |
640 | return 0; | |
5998102b | 641 | } |
a8035c8f | 642 | |
f0fba2ad LG |
643 | static struct snd_soc_codec_driver soc_codec_dev_wm8731 = { |
644 | .probe = wm8731_probe, | |
645 | .remove = wm8731_remove, | |
646 | .suspend = wm8731_suspend, | |
647 | .resume = wm8731_resume, | |
648 | .set_bias_level = wm8731_set_bias_level, | |
5e251aec MB |
649 | .dapm_widgets = wm8731_dapm_widgets, |
650 | .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets), | |
651 | .dapm_routes = wm8731_intercon, | |
652 | .num_dapm_routes = ARRAY_SIZE(wm8731_intercon), | |
cb555318 MB |
653 | .controls = wm8731_snd_controls, |
654 | .num_controls = ARRAY_SIZE(wm8731_snd_controls), | |
f0fba2ad LG |
655 | }; |
656 | ||
a7f96e4d MB |
657 | static const struct of_device_id wm8731_of_match[] = { |
658 | { .compatible = "wlf,wm8731", }, | |
659 | { } | |
660 | }; | |
661 | ||
662 | MODULE_DEVICE_TABLE(of, wm8731_of_match); | |
663 | ||
05d448e2 MB |
664 | static const struct regmap_config wm8731_regmap = { |
665 | .reg_bits = 7, | |
666 | .val_bits = 9, | |
667 | ||
668 | .max_register = WM8731_RESET, | |
669 | .volatile_reg = wm8731_volatile, | |
670 | .writeable_reg = wm8731_writeable, | |
671 | ||
672 | .cache_type = REGCACHE_RBTREE, | |
673 | .reg_defaults = wm8731_reg_defaults, | |
674 | .num_reg_defaults = ARRAY_SIZE(wm8731_reg_defaults), | |
675 | }; | |
676 | ||
5998102b | 677 | #if defined(CONFIG_SPI_MASTER) |
7a79e94e | 678 | static int wm8731_spi_probe(struct spi_device *spi) |
5998102b | 679 | { |
5998102b | 680 | struct wm8731_priv *wm8731; |
f0fba2ad | 681 | int ret; |
5998102b | 682 | |
f1992dde MB |
683 | wm8731 = devm_kzalloc(&spi->dev, sizeof(struct wm8731_priv), |
684 | GFP_KERNEL); | |
5998102b MB |
685 | if (wm8731 == NULL) |
686 | return -ENOMEM; | |
687 | ||
f1992dde | 688 | wm8731->regmap = devm_regmap_init_spi(spi, &wm8731_regmap); |
05d448e2 MB |
689 | if (IS_ERR(wm8731->regmap)) { |
690 | ret = PTR_ERR(wm8731->regmap); | |
691 | dev_err(&spi->dev, "Failed to allocate register map: %d\n", | |
692 | ret); | |
f1992dde | 693 | return ret; |
05d448e2 MB |
694 | } |
695 | ||
f0fba2ad | 696 | spi_set_drvdata(spi, wm8731); |
93b760b7 | 697 | |
f0fba2ad LG |
698 | ret = snd_soc_register_codec(&spi->dev, |
699 | &soc_codec_dev_wm8731, &wm8731_dai, 1); | |
05d448e2 MB |
700 | if (ret != 0) { |
701 | dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret); | |
f1992dde | 702 | return ret; |
05d448e2 MB |
703 | } |
704 | ||
705 | return 0; | |
5998102b MB |
706 | } |
707 | ||
7a79e94e | 708 | static int wm8731_spi_remove(struct spi_device *spi) |
5998102b | 709 | { |
f0fba2ad | 710 | snd_soc_unregister_codec(&spi->dev); |
5998102b MB |
711 | return 0; |
712 | } | |
713 | ||
714 | static struct spi_driver wm8731_spi_driver = { | |
715 | .driver = { | |
99b59f3c | 716 | .name = "wm8731", |
5998102b | 717 | .owner = THIS_MODULE, |
a7f96e4d | 718 | .of_match_table = wm8731_of_match, |
5998102b MB |
719 | }, |
720 | .probe = wm8731_spi_probe, | |
7a79e94e | 721 | .remove = wm8731_spi_remove, |
5998102b | 722 | }; |
a8035c8f MB |
723 | #endif /* CONFIG_SPI_MASTER */ |
724 | ||
b65ab73e | 725 | #if IS_ENABLED(CONFIG_I2C) |
7a79e94e BP |
726 | static int wm8731_i2c_probe(struct i2c_client *i2c, |
727 | const struct i2c_device_id *id) | |
a8035c8f | 728 | { |
5998102b | 729 | struct wm8731_priv *wm8731; |
f0fba2ad | 730 | int ret; |
a8035c8f | 731 | |
f1992dde MB |
732 | wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv), |
733 | GFP_KERNEL); | |
5998102b MB |
734 | if (wm8731 == NULL) |
735 | return -ENOMEM; | |
736 | ||
f1992dde | 737 | wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap); |
05d448e2 MB |
738 | if (IS_ERR(wm8731->regmap)) { |
739 | ret = PTR_ERR(wm8731->regmap); | |
740 | dev_err(&i2c->dev, "Failed to allocate register map: %d\n", | |
741 | ret); | |
f1992dde | 742 | return ret; |
05d448e2 MB |
743 | } |
744 | ||
5998102b | 745 | i2c_set_clientdata(i2c, wm8731); |
a8035c8f | 746 | |
05d448e2 | 747 | ret = snd_soc_register_codec(&i2c->dev, |
f0fba2ad | 748 | &soc_codec_dev_wm8731, &wm8731_dai, 1); |
05d448e2 MB |
749 | if (ret != 0) { |
750 | dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); | |
f1992dde | 751 | return ret; |
05d448e2 MB |
752 | } |
753 | ||
754 | return 0; | |
a8035c8f MB |
755 | } |
756 | ||
7a79e94e | 757 | static int wm8731_i2c_remove(struct i2c_client *client) |
a8035c8f | 758 | { |
f0fba2ad | 759 | snd_soc_unregister_codec(&client->dev); |
a8035c8f MB |
760 | return 0; |
761 | } | |
762 | ||
763 | static const struct i2c_device_id wm8731_i2c_id[] = { | |
764 | { "wm8731", 0 }, | |
765 | { } | |
766 | }; | |
767 | MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id); | |
768 | ||
769 | static struct i2c_driver wm8731_i2c_driver = { | |
770 | .driver = { | |
99b59f3c | 771 | .name = "wm8731", |
a8035c8f | 772 | .owner = THIS_MODULE, |
a7f96e4d | 773 | .of_match_table = wm8731_of_match, |
a8035c8f MB |
774 | }, |
775 | .probe = wm8731_i2c_probe, | |
7a79e94e | 776 | .remove = wm8731_i2c_remove, |
a8035c8f MB |
777 | .id_table = wm8731_i2c_id, |
778 | }; | |
779 | #endif | |
780 | ||
c9b3a40f | 781 | static int __init wm8731_modinit(void) |
64089b84 | 782 | { |
f0fba2ad | 783 | int ret = 0; |
b65ab73e | 784 | #if IS_ENABLED(CONFIG_I2C) |
5998102b MB |
785 | ret = i2c_add_driver(&wm8731_i2c_driver); |
786 | if (ret != 0) { | |
787 | printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n", | |
788 | ret); | |
789 | } | |
790 | #endif | |
791 | #if defined(CONFIG_SPI_MASTER) | |
792 | ret = spi_register_driver(&wm8731_spi_driver); | |
793 | if (ret != 0) { | |
794 | printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n", | |
795 | ret); | |
796 | } | |
797 | #endif | |
f0fba2ad | 798 | return ret; |
64089b84 MB |
799 | } |
800 | module_init(wm8731_modinit); | |
801 | ||
802 | static void __exit wm8731_exit(void) | |
803 | { | |
b65ab73e | 804 | #if IS_ENABLED(CONFIG_I2C) |
5998102b MB |
805 | i2c_del_driver(&wm8731_i2c_driver); |
806 | #endif | |
807 | #if defined(CONFIG_SPI_MASTER) | |
808 | spi_unregister_driver(&wm8731_spi_driver); | |
809 | #endif | |
64089b84 MB |
810 | } |
811 | module_exit(wm8731_exit); | |
812 | ||
40e0aa64 RP |
813 | MODULE_DESCRIPTION("ASoC WM8731 driver"); |
814 | MODULE_AUTHOR("Richard Purdie"); | |
815 | MODULE_LICENSE("GPL"); |