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1 | /* |
2 | * wm8737.c -- WM8737 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2010 Wolfson Microelectronics plc | |
5 | * | |
6 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/moduleparam.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/delay.h> | |
17 | #include <linux/pm.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/platform_device.h> | |
20 | #include <linux/regulator/consumer.h> | |
21 | #include <linux/spi/spi.h> | |
22 | #include <linux/slab.h> | |
53a5a83d | 23 | #include <linux/of_device.h> |
2a9ae13a MB |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
28 | #include <sound/soc-dapm.h> | |
29 | #include <sound/initval.h> | |
30 | #include <sound/tlv.h> | |
31 | ||
32 | #include "wm8737.h" | |
33 | ||
34 | #define WM8737_NUM_SUPPLIES 4 | |
35 | static const char *wm8737_supply_names[WM8737_NUM_SUPPLIES] = { | |
36 | "DCVDD", | |
37 | "DBVDD", | |
38 | "AVDD", | |
39 | "MVDD", | |
40 | }; | |
41 | ||
42 | /* codec private data */ | |
43 | struct wm8737_priv { | |
44 | enum snd_soc_control_type control_type; | |
45 | struct regulator_bulk_data supplies[WM8737_NUM_SUPPLIES]; | |
46 | unsigned int mclk; | |
47 | }; | |
48 | ||
49 | static const u16 wm8737_reg[WM8737_REGISTER_COUNT] = { | |
50 | 0x00C3, /* R0 - Left PGA volume */ | |
51 | 0x00C3, /* R1 - Right PGA volume */ | |
52 | 0x0007, /* R2 - AUDIO path L */ | |
53 | 0x0007, /* R3 - AUDIO path R */ | |
54 | 0x0000, /* R4 - 3D Enhance */ | |
55 | 0x0000, /* R5 - ADC Control */ | |
56 | 0x0000, /* R6 - Power Management */ | |
57 | 0x000A, /* R7 - Audio Format */ | |
58 | 0x0000, /* R8 - Clocking */ | |
59 | 0x000F, /* R9 - MIC Preamp Control */ | |
60 | 0x0003, /* R10 - Misc Bias Control */ | |
61 | 0x0000, /* R11 - Noise Gate */ | |
62 | 0x007C, /* R12 - ALC1 */ | |
63 | 0x0000, /* R13 - ALC2 */ | |
64 | 0x0032, /* R14 - ALC3 */ | |
65 | }; | |
66 | ||
67 | static int wm8737_reset(struct snd_soc_codec *codec) | |
68 | { | |
69 | return snd_soc_write(codec, WM8737_RESET, 0); | |
70 | } | |
71 | ||
72 | static const unsigned int micboost_tlv[] = { | |
73 | TLV_DB_RANGE_HEAD(4), | |
74 | 0, 0, TLV_DB_SCALE_ITEM(1300, 0, 0), | |
75 | 1, 1, TLV_DB_SCALE_ITEM(1800, 0, 0), | |
76 | 2, 2, TLV_DB_SCALE_ITEM(2800, 0, 0), | |
77 | 3, 3, TLV_DB_SCALE_ITEM(3300, 0, 0), | |
78 | }; | |
79 | static const DECLARE_TLV_DB_SCALE(pga_tlv, -9750, 50, 1); | |
80 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -600, 600, 0); | |
81 | static const DECLARE_TLV_DB_SCALE(ng_tlv, -7800, 600, 0); | |
fcd02e26 MB |
82 | static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -1200, 600, 0); |
83 | static const DECLARE_TLV_DB_SCALE(alc_target_tlv, -1800, 100, 0); | |
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84 | |
85 | static const char *micbias_enum_text[] = { | |
86 | "25%", | |
87 | "50%", | |
88 | "75%", | |
89 | "100%", | |
90 | }; | |
91 | ||
92 | static const struct soc_enum micbias_enum = | |
93 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 0, 4, micbias_enum_text); | |
94 | ||
95 | static const char *low_cutoff_text[] = { | |
96 | "Low", "High" | |
97 | }; | |
98 | ||
99 | static const struct soc_enum low_3d = | |
100 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 6, 2, low_cutoff_text); | |
101 | ||
102 | static const char *high_cutoff_text[] = { | |
103 | "High", "Low" | |
104 | }; | |
105 | ||
106 | static const struct soc_enum high_3d = | |
107 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 5, 2, high_cutoff_text); | |
108 | ||
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109 | static const char *alc_fn_text[] = { |
110 | "Disabled", "Right", "Left", "Stereo" | |
111 | }; | |
112 | ||
113 | static const struct soc_enum alc_fn = | |
114 | SOC_ENUM_SINGLE(WM8737_ALC1, 7, 4, alc_fn_text); | |
115 | ||
116 | static const char *alc_hold_text[] = { | |
117 | "0", "2.67ms", "5.33ms", "10.66ms", "21.32ms", "42.64ms", "85.28ms", | |
118 | "170.56ms", "341.12ms", "682.24ms", "1.364s", "2.728s", "5.458s", | |
119 | "10.916s", "21.832s", "43.691s" | |
120 | }; | |
121 | ||
122 | static const struct soc_enum alc_hold = | |
123 | SOC_ENUM_SINGLE(WM8737_ALC2, 0, 16, alc_hold_text); | |
124 | ||
125 | static const char *alc_atk_text[] = { | |
126 | "8.4ms", "16.8ms", "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", | |
127 | "1.075s", "2.15s", "4.3s", "8.6s" | |
128 | }; | |
129 | ||
130 | static const struct soc_enum alc_atk = | |
131 | SOC_ENUM_SINGLE(WM8737_ALC3, 0, 11, alc_atk_text); | |
132 | ||
133 | static const char *alc_dcy_text[] = { | |
134 | "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", "1.075s", "2.15s", | |
135 | "4.3s", "8.6s", "17.2s", "34.41s" | |
136 | }; | |
137 | ||
138 | static const struct soc_enum alc_dcy = | |
139 | SOC_ENUM_SINGLE(WM8737_ALC3, 4, 11, alc_dcy_text); | |
140 | ||
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141 | static const struct snd_kcontrol_new wm8737_snd_controls[] = { |
142 | SOC_DOUBLE_R_TLV("Mic Boost Volume", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
143 | 6, 3, 0, micboost_tlv), | |
144 | SOC_DOUBLE_R("Mic Boost Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
145 | 4, 1, 0), | |
146 | SOC_DOUBLE("Mic ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
147 | 3, 1, 0), | |
148 | ||
149 | SOC_DOUBLE_R_TLV("Capture Volume", WM8737_LEFT_PGA_VOLUME, | |
150 | WM8737_RIGHT_PGA_VOLUME, 0, 255, 0, pga_tlv), | |
151 | SOC_DOUBLE("Capture ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
152 | 2, 1, 0), | |
153 | ||
154 | SOC_DOUBLE("INPUT1 DC Bias Switch", WM8737_MISC_BIAS_CONTROL, 0, 1, 1, 0), | |
155 | ||
156 | SOC_ENUM("Mic PGA Bias", micbias_enum), | |
157 | SOC_SINGLE("ADC Low Power Switch", WM8737_ADC_CONTROL, 2, 1, 0), | |
158 | SOC_SINGLE("High Pass Filter Switch", WM8737_ADC_CONTROL, 0, 1, 1), | |
159 | SOC_DOUBLE("Polarity Invert Switch", WM8737_ADC_CONTROL, 5, 6, 1, 0), | |
160 | ||
161 | SOC_SINGLE("3D Switch", WM8737_3D_ENHANCE, 0, 1, 0), | |
162 | SOC_SINGLE("3D Depth", WM8737_3D_ENHANCE, 1, 15, 0), | |
163 | SOC_ENUM("3D Low Cut-off", low_3d), | |
164 | SOC_ENUM("3D High Cut-off", low_3d), | |
165 | SOC_SINGLE_TLV("3D ADC Volume", WM8737_3D_ENHANCE, 7, 1, 1, adc_tlv), | |
166 | ||
167 | SOC_SINGLE("Noise Gate Switch", WM8737_NOISE_GATE, 0, 1, 0), | |
168 | SOC_SINGLE_TLV("Noise Gate Threshold Volume", WM8737_NOISE_GATE, 2, 7, 0, | |
169 | ng_tlv), | |
fcd02e26 MB |
170 | |
171 | SOC_ENUM("ALC", alc_fn), | |
172 | SOC_SINGLE_TLV("ALC Max Gain Volume", WM8737_ALC1, 4, 7, 0, alc_max_tlv), | |
173 | SOC_SINGLE_TLV("ALC Target Volume", WM8737_ALC1, 0, 15, 0, alc_target_tlv), | |
174 | SOC_ENUM("ALC Hold Time", alc_hold), | |
175 | SOC_SINGLE("ALC ZC Switch", WM8737_ALC2, 4, 1, 0), | |
176 | SOC_ENUM("ALC Attack Time", alc_atk), | |
177 | SOC_ENUM("ALC Decay Time", alc_dcy), | |
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178 | }; |
179 | ||
180 | static const char *linsel_text[] = { | |
181 | "LINPUT1", "LINPUT2", "LINPUT3", "LINPUT1 DC", | |
182 | }; | |
183 | ||
184 | static const struct soc_enum linsel_enum = | |
185 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_L, 7, 4, linsel_text); | |
186 | ||
187 | static const struct snd_kcontrol_new linsel_mux = | |
188 | SOC_DAPM_ENUM("LINSEL", linsel_enum); | |
189 | ||
190 | ||
191 | static const char *rinsel_text[] = { | |
192 | "RINPUT1", "RINPUT2", "RINPUT3", "RINPUT1 DC", | |
193 | }; | |
194 | ||
195 | static const struct soc_enum rinsel_enum = | |
196 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_R, 7, 4, rinsel_text); | |
197 | ||
198 | static const struct snd_kcontrol_new rinsel_mux = | |
199 | SOC_DAPM_ENUM("RINSEL", rinsel_enum); | |
200 | ||
201 | static const char *bypass_text[] = { | |
202 | "Direct", "Preamp" | |
203 | }; | |
204 | ||
205 | static const struct soc_enum lbypass_enum = | |
206 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 2, 2, bypass_text); | |
207 | ||
208 | static const struct snd_kcontrol_new lbypass_mux = | |
209 | SOC_DAPM_ENUM("Left Bypass", lbypass_enum); | |
210 | ||
211 | ||
212 | static const struct soc_enum rbypass_enum = | |
213 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 3, 2, bypass_text); | |
214 | ||
215 | static const struct snd_kcontrol_new rbypass_mux = | |
216 | SOC_DAPM_ENUM("Left Bypass", rbypass_enum); | |
217 | ||
218 | static const struct snd_soc_dapm_widget wm8737_dapm_widgets[] = { | |
219 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
220 | SND_SOC_DAPM_INPUT("LINPUT2"), | |
221 | SND_SOC_DAPM_INPUT("LINPUT3"), | |
222 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
223 | SND_SOC_DAPM_INPUT("RINPUT2"), | |
224 | SND_SOC_DAPM_INPUT("RINPUT3"), | |
225 | SND_SOC_DAPM_INPUT("LACIN"), | |
226 | SND_SOC_DAPM_INPUT("RACIN"), | |
227 | ||
228 | SND_SOC_DAPM_MUX("LINSEL", SND_SOC_NOPM, 0, 0, &linsel_mux), | |
229 | SND_SOC_DAPM_MUX("RINSEL", SND_SOC_NOPM, 0, 0, &rinsel_mux), | |
230 | ||
231 | SND_SOC_DAPM_MUX("Left Preamp Mux", SND_SOC_NOPM, 0, 0, &lbypass_mux), | |
232 | SND_SOC_DAPM_MUX("Right Preamp Mux", SND_SOC_NOPM, 0, 0, &rbypass_mux), | |
233 | ||
234 | SND_SOC_DAPM_PGA("PGAL", WM8737_POWER_MANAGEMENT, 5, 0, NULL, 0), | |
235 | SND_SOC_DAPM_PGA("PGAR", WM8737_POWER_MANAGEMENT, 4, 0, NULL, 0), | |
236 | ||
237 | SND_SOC_DAPM_DAC("ADCL", NULL, WM8737_POWER_MANAGEMENT, 3, 0), | |
238 | SND_SOC_DAPM_DAC("ADCR", NULL, WM8737_POWER_MANAGEMENT, 2, 0), | |
239 | ||
240 | SND_SOC_DAPM_AIF_OUT("AIF", "Capture", 0, WM8737_POWER_MANAGEMENT, 6, 0), | |
241 | }; | |
242 | ||
243 | static const struct snd_soc_dapm_route intercon[] = { | |
244 | { "LINSEL", "LINPUT1", "LINPUT1" }, | |
245 | { "LINSEL", "LINPUT2", "LINPUT2" }, | |
246 | { "LINSEL", "LINPUT3", "LINPUT3" }, | |
247 | { "LINSEL", "LINPUT1 DC", "LINPUT1" }, | |
248 | ||
249 | { "RINSEL", "RINPUT1", "RINPUT1" }, | |
250 | { "RINSEL", "RINPUT2", "RINPUT2" }, | |
251 | { "RINSEL", "RINPUT3", "RINPUT3" }, | |
252 | { "RINSEL", "RINPUT1 DC", "RINPUT1" }, | |
253 | ||
254 | { "Left Preamp Mux", "Preamp", "LINSEL" }, | |
255 | { "Left Preamp Mux", "Direct", "LACIN" }, | |
256 | ||
257 | { "Right Preamp Mux", "Preamp", "RINSEL" }, | |
258 | { "Right Preamp Mux", "Direct", "RACIN" }, | |
259 | ||
260 | { "PGAL", NULL, "Left Preamp Mux" }, | |
261 | { "PGAR", NULL, "Right Preamp Mux" }, | |
262 | ||
263 | { "ADCL", NULL, "PGAL" }, | |
264 | { "ADCR", NULL, "PGAR" }, | |
265 | ||
266 | { "AIF", NULL, "ADCL" }, | |
267 | { "AIF", NULL, "ADCR" }, | |
268 | }; | |
269 | ||
270 | static int wm8737_add_widgets(struct snd_soc_codec *codec) | |
271 | { | |
272 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
273 | ||
274 | snd_soc_dapm_new_controls(dapm, wm8737_dapm_widgets, | |
275 | ARRAY_SIZE(wm8737_dapm_widgets)); | |
276 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); | |
277 | ||
278 | return 0; | |
279 | } | |
280 | ||
281 | /* codec mclk clock divider coefficients */ | |
282 | static const struct { | |
283 | u32 mclk; | |
284 | u32 rate; | |
285 | u8 usb; | |
286 | u8 sr; | |
287 | } coeff_div[] = { | |
288 | { 12288000, 8000, 0, 0x4 }, | |
289 | { 12288000, 12000, 0, 0x8 }, | |
290 | { 12288000, 16000, 0, 0xa }, | |
291 | { 12288000, 24000, 0, 0x1c }, | |
292 | { 12288000, 32000, 0, 0xc }, | |
293 | { 12288000, 48000, 0, 0 }, | |
294 | { 12288000, 96000, 0, 0xe }, | |
295 | ||
296 | { 11289600, 8000, 0, 0x14 }, | |
297 | { 11289600, 11025, 0, 0x18 }, | |
298 | { 11289600, 22050, 0, 0x1a }, | |
299 | { 11289600, 44100, 0, 0x10 }, | |
300 | { 11289600, 88200, 0, 0x1e }, | |
301 | ||
302 | { 18432000, 8000, 0, 0x5 }, | |
303 | { 18432000, 12000, 0, 0x9 }, | |
304 | { 18432000, 16000, 0, 0xb }, | |
305 | { 18432000, 24000, 0, 0x1b }, | |
306 | { 18432000, 32000, 0, 0xd }, | |
307 | { 18432000, 48000, 0, 0x1 }, | |
308 | { 18432000, 96000, 0, 0x1f }, | |
309 | ||
310 | { 16934400, 8000, 0, 0x15 }, | |
311 | { 16934400, 11025, 0, 0x19 }, | |
312 | { 16934400, 22050, 0, 0x1b }, | |
313 | { 16934400, 44100, 0, 0x11 }, | |
314 | { 16934400, 88200, 0, 0x1f }, | |
315 | ||
316 | { 12000000, 8000, 1, 0x4 }, | |
317 | { 12000000, 11025, 1, 0x19 }, | |
318 | { 12000000, 12000, 1, 0x8 }, | |
319 | { 12000000, 16000, 1, 0xa }, | |
320 | { 12000000, 22050, 1, 0x1b }, | |
321 | { 12000000, 24000, 1, 0x1c }, | |
322 | { 12000000, 32000, 1, 0xc }, | |
323 | { 12000000, 44100, 1, 0x11 }, | |
324 | { 12000000, 48000, 1, 0x0 }, | |
325 | { 12000000, 88200, 1, 0x1f }, | |
326 | { 12000000, 96000, 1, 0xe }, | |
327 | }; | |
328 | ||
329 | static int wm8737_hw_params(struct snd_pcm_substream *substream, | |
330 | struct snd_pcm_hw_params *params, | |
331 | struct snd_soc_dai *dai) | |
332 | { | |
333 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
334 | struct snd_soc_codec *codec = rtd->codec; | |
335 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
336 | int i; | |
337 | u16 clocking = 0; | |
338 | u16 af = 0; | |
339 | ||
340 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
341 | if (coeff_div[i].rate != params_rate(params)) | |
342 | continue; | |
343 | ||
344 | if (coeff_div[i].mclk == wm8737->mclk) | |
345 | break; | |
346 | ||
347 | if (coeff_div[i].mclk == wm8737->mclk * 2) { | |
348 | clocking |= WM8737_CLKDIV2; | |
349 | break; | |
350 | } | |
351 | } | |
352 | ||
353 | if (i == ARRAY_SIZE(coeff_div)) { | |
354 | dev_err(codec->dev, "%dHz MCLK can't support %dHz\n", | |
355 | wm8737->mclk, params_rate(params)); | |
356 | return -EINVAL; | |
357 | } | |
358 | ||
359 | clocking |= coeff_div[i].usb | (coeff_div[i].sr << WM8737_SR_SHIFT); | |
360 | ||
361 | switch (params_format(params)) { | |
362 | case SNDRV_PCM_FORMAT_S16_LE: | |
363 | break; | |
364 | case SNDRV_PCM_FORMAT_S20_3LE: | |
365 | af |= 0x8; | |
366 | break; | |
367 | case SNDRV_PCM_FORMAT_S24_LE: | |
368 | af |= 0x10; | |
369 | break; | |
370 | case SNDRV_PCM_FORMAT_S32_LE: | |
371 | af |= 0x18; | |
372 | break; | |
373 | default: | |
374 | return -EINVAL; | |
375 | } | |
376 | ||
377 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, WM8737_WL_MASK, af); | |
378 | snd_soc_update_bits(codec, WM8737_CLOCKING, | |
379 | WM8737_USB_MODE | WM8737_CLKDIV2 | WM8737_SR_MASK, | |
380 | clocking); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static int wm8737_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
386 | int clk_id, unsigned int freq, int dir) | |
387 | { | |
388 | struct snd_soc_codec *codec = codec_dai->codec; | |
389 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
390 | int i; | |
391 | ||
392 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
393 | if (freq == coeff_div[i].mclk || | |
394 | freq == coeff_div[i].mclk * 2) { | |
395 | wm8737->mclk = freq; | |
396 | return 0; | |
397 | } | |
398 | } | |
399 | ||
400 | dev_err(codec->dev, "MCLK rate %dHz not supported\n", freq); | |
401 | ||
402 | return -EINVAL; | |
403 | } | |
404 | ||
405 | ||
406 | static int wm8737_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
407 | unsigned int fmt) | |
408 | { | |
409 | struct snd_soc_codec *codec = codec_dai->codec; | |
410 | u16 af = 0; | |
411 | ||
412 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
413 | case SND_SOC_DAIFMT_CBM_CFM: | |
414 | af |= WM8737_MS; | |
415 | break; | |
416 | case SND_SOC_DAIFMT_CBS_CFS: | |
417 | break; | |
418 | default: | |
419 | return -EINVAL; | |
420 | } | |
421 | ||
422 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
423 | case SND_SOC_DAIFMT_I2S: | |
424 | af |= 0x2; | |
425 | break; | |
426 | case SND_SOC_DAIFMT_RIGHT_J: | |
427 | break; | |
428 | case SND_SOC_DAIFMT_LEFT_J: | |
429 | af |= 0x1; | |
430 | break; | |
431 | case SND_SOC_DAIFMT_DSP_A: | |
432 | af |= 0x3; | |
433 | break; | |
434 | case SND_SOC_DAIFMT_DSP_B: | |
435 | af |= 0x13; | |
436 | break; | |
437 | default: | |
438 | return -EINVAL; | |
439 | } | |
440 | ||
441 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
442 | case SND_SOC_DAIFMT_NB_NF: | |
443 | break; | |
444 | case SND_SOC_DAIFMT_NB_IF: | |
445 | af |= WM8737_LRP; | |
446 | break; | |
447 | default: | |
448 | return -EINVAL; | |
449 | } | |
450 | ||
451 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, | |
452 | WM8737_FORMAT_MASK | WM8737_LRP | WM8737_MS, af); | |
453 | ||
454 | return 0; | |
455 | } | |
456 | ||
457 | static int wm8737_set_bias_level(struct snd_soc_codec *codec, | |
458 | enum snd_soc_bias_level level) | |
459 | { | |
460 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
461 | int ret; | |
462 | ||
463 | switch (level) { | |
464 | case SND_SOC_BIAS_ON: | |
465 | break; | |
466 | ||
467 | case SND_SOC_BIAS_PREPARE: | |
468 | /* VMID at 2*75k */ | |
469 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
470 | WM8737_VMIDSEL_MASK, 0); | |
471 | break; | |
472 | ||
473 | case SND_SOC_BIAS_STANDBY: | |
474 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { | |
475 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), | |
476 | wm8737->supplies); | |
477 | if (ret != 0) { | |
478 | dev_err(codec->dev, | |
479 | "Failed to enable supplies: %d\n", | |
480 | ret); | |
481 | return ret; | |
482 | } | |
483 | ||
484 | snd_soc_cache_sync(codec); | |
485 | ||
486 | /* Fast VMID ramp at 2*2.5k */ | |
487 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
488 | WM8737_VMIDSEL_MASK, 0x4); | |
489 | ||
490 | /* Bring VMID up */ | |
491 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, | |
492 | WM8737_VMID_MASK | | |
493 | WM8737_VREF_MASK, | |
494 | WM8737_VMID_MASK | | |
495 | WM8737_VREF_MASK); | |
496 | ||
497 | msleep(500); | |
498 | } | |
499 | ||
500 | /* VMID at 2*300k */ | |
501 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
502 | WM8737_VMIDSEL_MASK, 2); | |
503 | ||
504 | break; | |
505 | ||
506 | case SND_SOC_BIAS_OFF: | |
507 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, | |
508 | WM8737_VMID_MASK | WM8737_VREF_MASK, 0); | |
509 | ||
510 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), | |
511 | wm8737->supplies); | |
512 | break; | |
513 | } | |
514 | ||
515 | codec->dapm.bias_level = level; | |
516 | return 0; | |
517 | } | |
518 | ||
519 | #define WM8737_RATES SNDRV_PCM_RATE_8000_96000 | |
520 | ||
521 | #define WM8737_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
522 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
523 | ||
524 | static struct snd_soc_dai_ops wm8737_dai_ops = { | |
525 | .hw_params = wm8737_hw_params, | |
526 | .set_sysclk = wm8737_set_dai_sysclk, | |
527 | .set_fmt = wm8737_set_dai_fmt, | |
528 | }; | |
529 | ||
530 | static struct snd_soc_dai_driver wm8737_dai = { | |
531 | .name = "wm8737", | |
532 | .capture = { | |
533 | .stream_name = "Capture", | |
534 | .channels_min = 2, /* Mono modes not yet supported */ | |
535 | .channels_max = 2, | |
536 | .rates = WM8737_RATES, | |
537 | .formats = WM8737_FORMATS, | |
538 | }, | |
539 | .ops = &wm8737_dai_ops, | |
540 | }; | |
541 | ||
542 | #ifdef CONFIG_PM | |
543 | static int wm8737_suspend(struct snd_soc_codec *codec, pm_message_t state) | |
544 | { | |
545 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
546 | return 0; | |
547 | } | |
548 | ||
549 | static int wm8737_resume(struct snd_soc_codec *codec) | |
550 | { | |
551 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
552 | return 0; | |
553 | } | |
554 | #else | |
555 | #define wm8737_suspend NULL | |
556 | #define wm8737_resume NULL | |
557 | #endif | |
558 | ||
559 | static int wm8737_probe(struct snd_soc_codec *codec) | |
560 | { | |
561 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
562 | int ret, i; | |
563 | ||
2a9ae13a MB |
564 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8737->control_type); |
565 | if (ret != 0) { | |
566 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
567 | return ret; | |
568 | } | |
569 | ||
570 | for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) | |
571 | wm8737->supplies[i].supply = wm8737_supply_names[i]; | |
572 | ||
573 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8737->supplies), | |
574 | wm8737->supplies); | |
575 | if (ret != 0) { | |
576 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
577 | return ret; | |
578 | } | |
579 | ||
580 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), | |
581 | wm8737->supplies); | |
582 | if (ret != 0) { | |
583 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
584 | goto err_get; | |
585 | } | |
586 | ||
587 | ret = wm8737_reset(codec); | |
588 | if (ret < 0) { | |
589 | dev_err(codec->dev, "Failed to issue reset\n"); | |
590 | goto err_enable; | |
591 | } | |
592 | ||
593 | snd_soc_update_bits(codec, WM8737_LEFT_PGA_VOLUME, WM8737_LVU, | |
594 | WM8737_LVU); | |
595 | snd_soc_update_bits(codec, WM8737_RIGHT_PGA_VOLUME, WM8737_RVU, | |
596 | WM8737_RVU); | |
597 | ||
598 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
599 | ||
600 | /* Bias level configuration will have done an extra enable */ | |
601 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
602 | ||
603 | snd_soc_add_controls(codec, wm8737_snd_controls, | |
604 | ARRAY_SIZE(wm8737_snd_controls)); | |
605 | wm8737_add_widgets(codec); | |
606 | ||
607 | return 0; | |
608 | ||
609 | err_enable: | |
610 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
611 | err_get: | |
612 | regulator_bulk_free(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
613 | ||
614 | return ret; | |
615 | } | |
616 | ||
617 | static int wm8737_remove(struct snd_soc_codec *codec) | |
618 | { | |
619 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
620 | ||
621 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
622 | regulator_bulk_free(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
623 | return 0; | |
624 | } | |
625 | ||
626 | static struct snd_soc_codec_driver soc_codec_dev_wm8737 = { | |
627 | .probe = wm8737_probe, | |
628 | .remove = wm8737_remove, | |
629 | .suspend = wm8737_suspend, | |
630 | .resume = wm8737_resume, | |
631 | .set_bias_level = wm8737_set_bias_level, | |
632 | ||
633 | .reg_cache_size = WM8737_REGISTER_COUNT - 1, /* Skip reset */ | |
634 | .reg_word_size = sizeof(u16), | |
635 | .reg_cache_default = wm8737_reg, | |
636 | }; | |
637 | ||
53a5a83d MB |
638 | static const struct of_device_id wm8737_of_match[] = { |
639 | { .compatible = "wlf,wm8737", }, | |
640 | { } | |
641 | }; | |
642 | ||
643 | MODULE_DEVICE_TABLE(of, wm8737_of_match); | |
644 | ||
2a9ae13a MB |
645 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
646 | static __devinit int wm8737_i2c_probe(struct i2c_client *i2c, | |
647 | const struct i2c_device_id *id) | |
648 | { | |
649 | struct wm8737_priv *wm8737; | |
650 | int ret; | |
651 | ||
652 | wm8737 = kzalloc(sizeof(struct wm8737_priv), GFP_KERNEL); | |
653 | if (wm8737 == NULL) | |
654 | return -ENOMEM; | |
655 | ||
656 | i2c_set_clientdata(i2c, wm8737); | |
657 | wm8737->control_type = SND_SOC_I2C; | |
658 | ||
659 | ret = snd_soc_register_codec(&i2c->dev, | |
660 | &soc_codec_dev_wm8737, &wm8737_dai, 1); | |
661 | if (ret < 0) | |
662 | kfree(wm8737); | |
663 | return ret; | |
664 | ||
665 | } | |
666 | ||
667 | static __devexit int wm8737_i2c_remove(struct i2c_client *client) | |
668 | { | |
669 | snd_soc_unregister_codec(&client->dev); | |
670 | kfree(i2c_get_clientdata(client)); | |
671 | return 0; | |
672 | } | |
673 | ||
674 | static const struct i2c_device_id wm8737_i2c_id[] = { | |
675 | { "wm8737", 0 }, | |
676 | { } | |
677 | }; | |
678 | MODULE_DEVICE_TABLE(i2c, wm8737_i2c_id); | |
679 | ||
680 | static struct i2c_driver wm8737_i2c_driver = { | |
681 | .driver = { | |
682 | .name = "wm8737", | |
683 | .owner = THIS_MODULE, | |
53a5a83d | 684 | .of_match_table = wm8737_of_match, |
2a9ae13a MB |
685 | }, |
686 | .probe = wm8737_i2c_probe, | |
687 | .remove = __devexit_p(wm8737_i2c_remove), | |
688 | .id_table = wm8737_i2c_id, | |
689 | }; | |
690 | #endif | |
691 | ||
692 | #if defined(CONFIG_SPI_MASTER) | |
693 | static int __devinit wm8737_spi_probe(struct spi_device *spi) | |
694 | { | |
695 | struct wm8737_priv *wm8737; | |
696 | int ret; | |
697 | ||
698 | wm8737 = kzalloc(sizeof(struct wm8737_priv), GFP_KERNEL); | |
699 | if (wm8737 == NULL) | |
700 | return -ENOMEM; | |
701 | ||
702 | wm8737->control_type = SND_SOC_SPI; | |
703 | spi_set_drvdata(spi, wm8737); | |
704 | ||
705 | ret = snd_soc_register_codec(&spi->dev, | |
706 | &soc_codec_dev_wm8737, &wm8737_dai, 1); | |
707 | if (ret < 0) | |
708 | kfree(wm8737); | |
709 | return ret; | |
710 | } | |
711 | ||
712 | static int __devexit wm8737_spi_remove(struct spi_device *spi) | |
713 | { | |
714 | snd_soc_unregister_codec(&spi->dev); | |
715 | kfree(spi_get_drvdata(spi)); | |
716 | return 0; | |
717 | } | |
718 | ||
719 | static struct spi_driver wm8737_spi_driver = { | |
720 | .driver = { | |
721 | .name = "wm8737", | |
722 | .owner = THIS_MODULE, | |
53a5a83d | 723 | .of_match_table = wm8737_of_match, |
2a9ae13a MB |
724 | }, |
725 | .probe = wm8737_spi_probe, | |
726 | .remove = __devexit_p(wm8737_spi_remove), | |
727 | }; | |
728 | #endif /* CONFIG_SPI_MASTER */ | |
729 | ||
730 | static int __init wm8737_modinit(void) | |
731 | { | |
732 | int ret; | |
733 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
734 | ret = i2c_add_driver(&wm8737_i2c_driver); | |
735 | if (ret != 0) { | |
736 | printk(KERN_ERR "Failed to register WM8737 I2C driver: %d\n", | |
737 | ret); | |
738 | } | |
739 | #endif | |
740 | #if defined(CONFIG_SPI_MASTER) | |
741 | ret = spi_register_driver(&wm8737_spi_driver); | |
742 | if (ret != 0) { | |
743 | printk(KERN_ERR "Failed to register WM8737 SPI driver: %d\n", | |
744 | ret); | |
745 | } | |
746 | #endif | |
747 | return 0; | |
748 | } | |
749 | module_init(wm8737_modinit); | |
750 | ||
751 | static void __exit wm8737_exit(void) | |
752 | { | |
753 | #if defined(CONFIG_SPI_MASTER) | |
754 | spi_unregister_driver(&wm8737_spi_driver); | |
755 | #endif | |
756 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
757 | i2c_del_driver(&wm8737_i2c_driver); | |
758 | #endif | |
759 | } | |
760 | module_exit(wm8737_exit); | |
761 | ||
762 | MODULE_DESCRIPTION("ASoC WM8737 driver"); | |
763 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
764 | MODULE_LICENSE("GPL"); |