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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> | |
2a9ae13a MB |
19 | #include <linux/regulator/consumer.h> |
20 | #include <linux/spi/spi.h> | |
21 | #include <linux/slab.h> | |
53a5a83d | 22 | #include <linux/of_device.h> |
2a9ae13a MB |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/pcm_params.h> | |
26 | #include <sound/soc.h> | |
27 | #include <sound/soc-dapm.h> | |
28 | #include <sound/initval.h> | |
29 | #include <sound/tlv.h> | |
30 | ||
31 | #include "wm8737.h" | |
32 | ||
33 | #define WM8737_NUM_SUPPLIES 4 | |
34 | static const char *wm8737_supply_names[WM8737_NUM_SUPPLIES] = { | |
35 | "DCVDD", | |
36 | "DBVDD", | |
37 | "AVDD", | |
38 | "MVDD", | |
39 | }; | |
40 | ||
41 | /* codec private data */ | |
42 | struct wm8737_priv { | |
43 | enum snd_soc_control_type control_type; | |
44 | struct regulator_bulk_data supplies[WM8737_NUM_SUPPLIES]; | |
45 | unsigned int mclk; | |
46 | }; | |
47 | ||
48 | static const u16 wm8737_reg[WM8737_REGISTER_COUNT] = { | |
49 | 0x00C3, /* R0 - Left PGA volume */ | |
50 | 0x00C3, /* R1 - Right PGA volume */ | |
51 | 0x0007, /* R2 - AUDIO path L */ | |
52 | 0x0007, /* R3 - AUDIO path R */ | |
53 | 0x0000, /* R4 - 3D Enhance */ | |
54 | 0x0000, /* R5 - ADC Control */ | |
55 | 0x0000, /* R6 - Power Management */ | |
56 | 0x000A, /* R7 - Audio Format */ | |
57 | 0x0000, /* R8 - Clocking */ | |
58 | 0x000F, /* R9 - MIC Preamp Control */ | |
59 | 0x0003, /* R10 - Misc Bias Control */ | |
60 | 0x0000, /* R11 - Noise Gate */ | |
61 | 0x007C, /* R12 - ALC1 */ | |
62 | 0x0000, /* R13 - ALC2 */ | |
63 | 0x0032, /* R14 - ALC3 */ | |
64 | }; | |
65 | ||
66 | static int wm8737_reset(struct snd_soc_codec *codec) | |
67 | { | |
68 | return snd_soc_write(codec, WM8737_RESET, 0); | |
69 | } | |
70 | ||
71 | static const unsigned int micboost_tlv[] = { | |
72 | TLV_DB_RANGE_HEAD(4), | |
73 | 0, 0, TLV_DB_SCALE_ITEM(1300, 0, 0), | |
74 | 1, 1, TLV_DB_SCALE_ITEM(1800, 0, 0), | |
75 | 2, 2, TLV_DB_SCALE_ITEM(2800, 0, 0), | |
76 | 3, 3, TLV_DB_SCALE_ITEM(3300, 0, 0), | |
77 | }; | |
78 | static const DECLARE_TLV_DB_SCALE(pga_tlv, -9750, 50, 1); | |
79 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -600, 600, 0); | |
80 | static const DECLARE_TLV_DB_SCALE(ng_tlv, -7800, 600, 0); | |
fcd02e26 MB |
81 | static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -1200, 600, 0); |
82 | static const DECLARE_TLV_DB_SCALE(alc_target_tlv, -1800, 100, 0); | |
2a9ae13a MB |
83 | |
84 | static const char *micbias_enum_text[] = { | |
85 | "25%", | |
86 | "50%", | |
87 | "75%", | |
88 | "100%", | |
89 | }; | |
90 | ||
91 | static const struct soc_enum micbias_enum = | |
92 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 0, 4, micbias_enum_text); | |
93 | ||
94 | static const char *low_cutoff_text[] = { | |
95 | "Low", "High" | |
96 | }; | |
97 | ||
98 | static const struct soc_enum low_3d = | |
99 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 6, 2, low_cutoff_text); | |
100 | ||
101 | static const char *high_cutoff_text[] = { | |
102 | "High", "Low" | |
103 | }; | |
104 | ||
105 | static const struct soc_enum high_3d = | |
106 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 5, 2, high_cutoff_text); | |
107 | ||
fcd02e26 MB |
108 | static const char *alc_fn_text[] = { |
109 | "Disabled", "Right", "Left", "Stereo" | |
110 | }; | |
111 | ||
112 | static const struct soc_enum alc_fn = | |
113 | SOC_ENUM_SINGLE(WM8737_ALC1, 7, 4, alc_fn_text); | |
114 | ||
115 | static const char *alc_hold_text[] = { | |
116 | "0", "2.67ms", "5.33ms", "10.66ms", "21.32ms", "42.64ms", "85.28ms", | |
117 | "170.56ms", "341.12ms", "682.24ms", "1.364s", "2.728s", "5.458s", | |
118 | "10.916s", "21.832s", "43.691s" | |
119 | }; | |
120 | ||
121 | static const struct soc_enum alc_hold = | |
122 | SOC_ENUM_SINGLE(WM8737_ALC2, 0, 16, alc_hold_text); | |
123 | ||
124 | static const char *alc_atk_text[] = { | |
125 | "8.4ms", "16.8ms", "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", | |
126 | "1.075s", "2.15s", "4.3s", "8.6s" | |
127 | }; | |
128 | ||
129 | static const struct soc_enum alc_atk = | |
130 | SOC_ENUM_SINGLE(WM8737_ALC3, 0, 11, alc_atk_text); | |
131 | ||
132 | static const char *alc_dcy_text[] = { | |
133 | "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", "1.075s", "2.15s", | |
134 | "4.3s", "8.6s", "17.2s", "34.41s" | |
135 | }; | |
136 | ||
137 | static const struct soc_enum alc_dcy = | |
138 | SOC_ENUM_SINGLE(WM8737_ALC3, 4, 11, alc_dcy_text); | |
139 | ||
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140 | static const struct snd_kcontrol_new wm8737_snd_controls[] = { |
141 | SOC_DOUBLE_R_TLV("Mic Boost Volume", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
142 | 6, 3, 0, micboost_tlv), | |
143 | SOC_DOUBLE_R("Mic Boost Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
144 | 4, 1, 0), | |
145 | SOC_DOUBLE("Mic ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
146 | 3, 1, 0), | |
147 | ||
148 | SOC_DOUBLE_R_TLV("Capture Volume", WM8737_LEFT_PGA_VOLUME, | |
149 | WM8737_RIGHT_PGA_VOLUME, 0, 255, 0, pga_tlv), | |
150 | SOC_DOUBLE("Capture ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
151 | 2, 1, 0), | |
152 | ||
153 | SOC_DOUBLE("INPUT1 DC Bias Switch", WM8737_MISC_BIAS_CONTROL, 0, 1, 1, 0), | |
154 | ||
155 | SOC_ENUM("Mic PGA Bias", micbias_enum), | |
156 | SOC_SINGLE("ADC Low Power Switch", WM8737_ADC_CONTROL, 2, 1, 0), | |
157 | SOC_SINGLE("High Pass Filter Switch", WM8737_ADC_CONTROL, 0, 1, 1), | |
158 | SOC_DOUBLE("Polarity Invert Switch", WM8737_ADC_CONTROL, 5, 6, 1, 0), | |
159 | ||
160 | SOC_SINGLE("3D Switch", WM8737_3D_ENHANCE, 0, 1, 0), | |
161 | SOC_SINGLE("3D Depth", WM8737_3D_ENHANCE, 1, 15, 0), | |
162 | SOC_ENUM("3D Low Cut-off", low_3d), | |
163 | SOC_ENUM("3D High Cut-off", low_3d), | |
164 | SOC_SINGLE_TLV("3D ADC Volume", WM8737_3D_ENHANCE, 7, 1, 1, adc_tlv), | |
165 | ||
166 | SOC_SINGLE("Noise Gate Switch", WM8737_NOISE_GATE, 0, 1, 0), | |
167 | SOC_SINGLE_TLV("Noise Gate Threshold Volume", WM8737_NOISE_GATE, 2, 7, 0, | |
168 | ng_tlv), | |
fcd02e26 MB |
169 | |
170 | SOC_ENUM("ALC", alc_fn), | |
171 | SOC_SINGLE_TLV("ALC Max Gain Volume", WM8737_ALC1, 4, 7, 0, alc_max_tlv), | |
172 | SOC_SINGLE_TLV("ALC Target Volume", WM8737_ALC1, 0, 15, 0, alc_target_tlv), | |
173 | SOC_ENUM("ALC Hold Time", alc_hold), | |
174 | SOC_SINGLE("ALC ZC Switch", WM8737_ALC2, 4, 1, 0), | |
175 | SOC_ENUM("ALC Attack Time", alc_atk), | |
176 | SOC_ENUM("ALC Decay Time", alc_dcy), | |
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177 | }; |
178 | ||
179 | static const char *linsel_text[] = { | |
180 | "LINPUT1", "LINPUT2", "LINPUT3", "LINPUT1 DC", | |
181 | }; | |
182 | ||
183 | static const struct soc_enum linsel_enum = | |
184 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_L, 7, 4, linsel_text); | |
185 | ||
186 | static const struct snd_kcontrol_new linsel_mux = | |
187 | SOC_DAPM_ENUM("LINSEL", linsel_enum); | |
188 | ||
189 | ||
190 | static const char *rinsel_text[] = { | |
191 | "RINPUT1", "RINPUT2", "RINPUT3", "RINPUT1 DC", | |
192 | }; | |
193 | ||
194 | static const struct soc_enum rinsel_enum = | |
195 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_R, 7, 4, rinsel_text); | |
196 | ||
197 | static const struct snd_kcontrol_new rinsel_mux = | |
198 | SOC_DAPM_ENUM("RINSEL", rinsel_enum); | |
199 | ||
200 | static const char *bypass_text[] = { | |
201 | "Direct", "Preamp" | |
202 | }; | |
203 | ||
204 | static const struct soc_enum lbypass_enum = | |
205 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 2, 2, bypass_text); | |
206 | ||
207 | static const struct snd_kcontrol_new lbypass_mux = | |
208 | SOC_DAPM_ENUM("Left Bypass", lbypass_enum); | |
209 | ||
210 | ||
211 | static const struct soc_enum rbypass_enum = | |
212 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 3, 2, bypass_text); | |
213 | ||
214 | static const struct snd_kcontrol_new rbypass_mux = | |
215 | SOC_DAPM_ENUM("Left Bypass", rbypass_enum); | |
216 | ||
217 | static const struct snd_soc_dapm_widget wm8737_dapm_widgets[] = { | |
218 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
219 | SND_SOC_DAPM_INPUT("LINPUT2"), | |
220 | SND_SOC_DAPM_INPUT("LINPUT3"), | |
221 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
222 | SND_SOC_DAPM_INPUT("RINPUT2"), | |
223 | SND_SOC_DAPM_INPUT("RINPUT3"), | |
224 | SND_SOC_DAPM_INPUT("LACIN"), | |
225 | SND_SOC_DAPM_INPUT("RACIN"), | |
226 | ||
227 | SND_SOC_DAPM_MUX("LINSEL", SND_SOC_NOPM, 0, 0, &linsel_mux), | |
228 | SND_SOC_DAPM_MUX("RINSEL", SND_SOC_NOPM, 0, 0, &rinsel_mux), | |
229 | ||
230 | SND_SOC_DAPM_MUX("Left Preamp Mux", SND_SOC_NOPM, 0, 0, &lbypass_mux), | |
231 | SND_SOC_DAPM_MUX("Right Preamp Mux", SND_SOC_NOPM, 0, 0, &rbypass_mux), | |
232 | ||
233 | SND_SOC_DAPM_PGA("PGAL", WM8737_POWER_MANAGEMENT, 5, 0, NULL, 0), | |
234 | SND_SOC_DAPM_PGA("PGAR", WM8737_POWER_MANAGEMENT, 4, 0, NULL, 0), | |
235 | ||
236 | SND_SOC_DAPM_DAC("ADCL", NULL, WM8737_POWER_MANAGEMENT, 3, 0), | |
237 | SND_SOC_DAPM_DAC("ADCR", NULL, WM8737_POWER_MANAGEMENT, 2, 0), | |
238 | ||
239 | SND_SOC_DAPM_AIF_OUT("AIF", "Capture", 0, WM8737_POWER_MANAGEMENT, 6, 0), | |
240 | }; | |
241 | ||
242 | static const struct snd_soc_dapm_route intercon[] = { | |
243 | { "LINSEL", "LINPUT1", "LINPUT1" }, | |
244 | { "LINSEL", "LINPUT2", "LINPUT2" }, | |
245 | { "LINSEL", "LINPUT3", "LINPUT3" }, | |
246 | { "LINSEL", "LINPUT1 DC", "LINPUT1" }, | |
247 | ||
248 | { "RINSEL", "RINPUT1", "RINPUT1" }, | |
249 | { "RINSEL", "RINPUT2", "RINPUT2" }, | |
250 | { "RINSEL", "RINPUT3", "RINPUT3" }, | |
251 | { "RINSEL", "RINPUT1 DC", "RINPUT1" }, | |
252 | ||
253 | { "Left Preamp Mux", "Preamp", "LINSEL" }, | |
254 | { "Left Preamp Mux", "Direct", "LACIN" }, | |
255 | ||
256 | { "Right Preamp Mux", "Preamp", "RINSEL" }, | |
257 | { "Right Preamp Mux", "Direct", "RACIN" }, | |
258 | ||
259 | { "PGAL", NULL, "Left Preamp Mux" }, | |
260 | { "PGAR", NULL, "Right Preamp Mux" }, | |
261 | ||
262 | { "ADCL", NULL, "PGAL" }, | |
263 | { "ADCR", NULL, "PGAR" }, | |
264 | ||
265 | { "AIF", NULL, "ADCL" }, | |
266 | { "AIF", NULL, "ADCR" }, | |
267 | }; | |
268 | ||
269 | static int wm8737_add_widgets(struct snd_soc_codec *codec) | |
270 | { | |
271 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
272 | ||
273 | snd_soc_dapm_new_controls(dapm, wm8737_dapm_widgets, | |
274 | ARRAY_SIZE(wm8737_dapm_widgets)); | |
275 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); | |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | /* codec mclk clock divider coefficients */ | |
281 | static const struct { | |
282 | u32 mclk; | |
283 | u32 rate; | |
284 | u8 usb; | |
285 | u8 sr; | |
286 | } coeff_div[] = { | |
287 | { 12288000, 8000, 0, 0x4 }, | |
288 | { 12288000, 12000, 0, 0x8 }, | |
289 | { 12288000, 16000, 0, 0xa }, | |
290 | { 12288000, 24000, 0, 0x1c }, | |
291 | { 12288000, 32000, 0, 0xc }, | |
292 | { 12288000, 48000, 0, 0 }, | |
293 | { 12288000, 96000, 0, 0xe }, | |
294 | ||
295 | { 11289600, 8000, 0, 0x14 }, | |
296 | { 11289600, 11025, 0, 0x18 }, | |
297 | { 11289600, 22050, 0, 0x1a }, | |
298 | { 11289600, 44100, 0, 0x10 }, | |
299 | { 11289600, 88200, 0, 0x1e }, | |
300 | ||
301 | { 18432000, 8000, 0, 0x5 }, | |
302 | { 18432000, 12000, 0, 0x9 }, | |
303 | { 18432000, 16000, 0, 0xb }, | |
304 | { 18432000, 24000, 0, 0x1b }, | |
305 | { 18432000, 32000, 0, 0xd }, | |
306 | { 18432000, 48000, 0, 0x1 }, | |
307 | { 18432000, 96000, 0, 0x1f }, | |
308 | ||
309 | { 16934400, 8000, 0, 0x15 }, | |
310 | { 16934400, 11025, 0, 0x19 }, | |
311 | { 16934400, 22050, 0, 0x1b }, | |
312 | { 16934400, 44100, 0, 0x11 }, | |
313 | { 16934400, 88200, 0, 0x1f }, | |
314 | ||
315 | { 12000000, 8000, 1, 0x4 }, | |
316 | { 12000000, 11025, 1, 0x19 }, | |
317 | { 12000000, 12000, 1, 0x8 }, | |
318 | { 12000000, 16000, 1, 0xa }, | |
319 | { 12000000, 22050, 1, 0x1b }, | |
320 | { 12000000, 24000, 1, 0x1c }, | |
321 | { 12000000, 32000, 1, 0xc }, | |
322 | { 12000000, 44100, 1, 0x11 }, | |
323 | { 12000000, 48000, 1, 0x0 }, | |
324 | { 12000000, 88200, 1, 0x1f }, | |
325 | { 12000000, 96000, 1, 0xe }, | |
326 | }; | |
327 | ||
328 | static int wm8737_hw_params(struct snd_pcm_substream *substream, | |
329 | struct snd_pcm_hw_params *params, | |
330 | struct snd_soc_dai *dai) | |
331 | { | |
e6968a17 | 332 | struct snd_soc_codec *codec = dai->codec; |
2a9ae13a MB |
333 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); |
334 | int i; | |
335 | u16 clocking = 0; | |
336 | u16 af = 0; | |
337 | ||
338 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
339 | if (coeff_div[i].rate != params_rate(params)) | |
340 | continue; | |
341 | ||
342 | if (coeff_div[i].mclk == wm8737->mclk) | |
343 | break; | |
344 | ||
345 | if (coeff_div[i].mclk == wm8737->mclk * 2) { | |
346 | clocking |= WM8737_CLKDIV2; | |
347 | break; | |
348 | } | |
349 | } | |
350 | ||
351 | if (i == ARRAY_SIZE(coeff_div)) { | |
352 | dev_err(codec->dev, "%dHz MCLK can't support %dHz\n", | |
353 | wm8737->mclk, params_rate(params)); | |
354 | return -EINVAL; | |
355 | } | |
356 | ||
357 | clocking |= coeff_div[i].usb | (coeff_div[i].sr << WM8737_SR_SHIFT); | |
358 | ||
359 | switch (params_format(params)) { | |
360 | case SNDRV_PCM_FORMAT_S16_LE: | |
361 | break; | |
362 | case SNDRV_PCM_FORMAT_S20_3LE: | |
363 | af |= 0x8; | |
364 | break; | |
365 | case SNDRV_PCM_FORMAT_S24_LE: | |
366 | af |= 0x10; | |
367 | break; | |
368 | case SNDRV_PCM_FORMAT_S32_LE: | |
369 | af |= 0x18; | |
370 | break; | |
371 | default: | |
372 | return -EINVAL; | |
373 | } | |
374 | ||
375 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, WM8737_WL_MASK, af); | |
376 | snd_soc_update_bits(codec, WM8737_CLOCKING, | |
377 | WM8737_USB_MODE | WM8737_CLKDIV2 | WM8737_SR_MASK, | |
378 | clocking); | |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
383 | static int wm8737_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
384 | int clk_id, unsigned int freq, int dir) | |
385 | { | |
386 | struct snd_soc_codec *codec = codec_dai->codec; | |
387 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
388 | int i; | |
389 | ||
390 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
391 | if (freq == coeff_div[i].mclk || | |
392 | freq == coeff_div[i].mclk * 2) { | |
393 | wm8737->mclk = freq; | |
394 | return 0; | |
395 | } | |
396 | } | |
397 | ||
398 | dev_err(codec->dev, "MCLK rate %dHz not supported\n", freq); | |
399 | ||
400 | return -EINVAL; | |
401 | } | |
402 | ||
403 | ||
404 | static int wm8737_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
405 | unsigned int fmt) | |
406 | { | |
407 | struct snd_soc_codec *codec = codec_dai->codec; | |
408 | u16 af = 0; | |
409 | ||
410 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
411 | case SND_SOC_DAIFMT_CBM_CFM: | |
412 | af |= WM8737_MS; | |
413 | break; | |
414 | case SND_SOC_DAIFMT_CBS_CFS: | |
415 | break; | |
416 | default: | |
417 | return -EINVAL; | |
418 | } | |
419 | ||
420 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
421 | case SND_SOC_DAIFMT_I2S: | |
422 | af |= 0x2; | |
423 | break; | |
424 | case SND_SOC_DAIFMT_RIGHT_J: | |
425 | break; | |
426 | case SND_SOC_DAIFMT_LEFT_J: | |
427 | af |= 0x1; | |
428 | break; | |
429 | case SND_SOC_DAIFMT_DSP_A: | |
430 | af |= 0x3; | |
431 | break; | |
432 | case SND_SOC_DAIFMT_DSP_B: | |
433 | af |= 0x13; | |
434 | break; | |
435 | default: | |
436 | return -EINVAL; | |
437 | } | |
438 | ||
439 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
440 | case SND_SOC_DAIFMT_NB_NF: | |
441 | break; | |
442 | case SND_SOC_DAIFMT_NB_IF: | |
443 | af |= WM8737_LRP; | |
444 | break; | |
445 | default: | |
446 | return -EINVAL; | |
447 | } | |
448 | ||
449 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, | |
450 | WM8737_FORMAT_MASK | WM8737_LRP | WM8737_MS, af); | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
455 | static int wm8737_set_bias_level(struct snd_soc_codec *codec, | |
456 | enum snd_soc_bias_level level) | |
457 | { | |
458 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
459 | int ret; | |
460 | ||
461 | switch (level) { | |
462 | case SND_SOC_BIAS_ON: | |
463 | break; | |
464 | ||
465 | case SND_SOC_BIAS_PREPARE: | |
466 | /* VMID at 2*75k */ | |
467 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
468 | WM8737_VMIDSEL_MASK, 0); | |
469 | break; | |
470 | ||
471 | case SND_SOC_BIAS_STANDBY: | |
472 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { | |
473 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), | |
474 | wm8737->supplies); | |
475 | if (ret != 0) { | |
476 | dev_err(codec->dev, | |
477 | "Failed to enable supplies: %d\n", | |
478 | ret); | |
479 | return ret; | |
480 | } | |
481 | ||
482 | snd_soc_cache_sync(codec); | |
483 | ||
484 | /* Fast VMID ramp at 2*2.5k */ | |
485 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
486 | WM8737_VMIDSEL_MASK, 0x4); | |
487 | ||
488 | /* Bring VMID up */ | |
489 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, | |
490 | WM8737_VMID_MASK | | |
491 | WM8737_VREF_MASK, | |
492 | WM8737_VMID_MASK | | |
493 | WM8737_VREF_MASK); | |
494 | ||
495 | msleep(500); | |
496 | } | |
497 | ||
498 | /* VMID at 2*300k */ | |
499 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
500 | WM8737_VMIDSEL_MASK, 2); | |
501 | ||
502 | break; | |
503 | ||
504 | case SND_SOC_BIAS_OFF: | |
505 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, | |
506 | WM8737_VMID_MASK | WM8737_VREF_MASK, 0); | |
507 | ||
508 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), | |
509 | wm8737->supplies); | |
510 | break; | |
511 | } | |
512 | ||
513 | codec->dapm.bias_level = level; | |
514 | return 0; | |
515 | } | |
516 | ||
517 | #define WM8737_RATES SNDRV_PCM_RATE_8000_96000 | |
518 | ||
519 | #define WM8737_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
520 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
521 | ||
85e7652d | 522 | static const struct snd_soc_dai_ops wm8737_dai_ops = { |
2a9ae13a MB |
523 | .hw_params = wm8737_hw_params, |
524 | .set_sysclk = wm8737_set_dai_sysclk, | |
525 | .set_fmt = wm8737_set_dai_fmt, | |
526 | }; | |
527 | ||
528 | static struct snd_soc_dai_driver wm8737_dai = { | |
529 | .name = "wm8737", | |
530 | .capture = { | |
531 | .stream_name = "Capture", | |
532 | .channels_min = 2, /* Mono modes not yet supported */ | |
533 | .channels_max = 2, | |
534 | .rates = WM8737_RATES, | |
535 | .formats = WM8737_FORMATS, | |
536 | }, | |
537 | .ops = &wm8737_dai_ops, | |
538 | }; | |
539 | ||
540 | #ifdef CONFIG_PM | |
84b315ee | 541 | static int wm8737_suspend(struct snd_soc_codec *codec) |
2a9ae13a MB |
542 | { |
543 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
544 | return 0; | |
545 | } | |
546 | ||
547 | static int wm8737_resume(struct snd_soc_codec *codec) | |
548 | { | |
549 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
550 | return 0; | |
551 | } | |
552 | #else | |
553 | #define wm8737_suspend NULL | |
554 | #define wm8737_resume NULL | |
555 | #endif | |
556 | ||
557 | static int wm8737_probe(struct snd_soc_codec *codec) | |
558 | { | |
559 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
560 | int ret, i; | |
561 | ||
2a9ae13a MB |
562 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8737->control_type); |
563 | if (ret != 0) { | |
564 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
565 | return ret; | |
566 | } | |
567 | ||
568 | for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) | |
569 | wm8737->supplies[i].supply = wm8737_supply_names[i]; | |
570 | ||
571 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8737->supplies), | |
572 | wm8737->supplies); | |
573 | if (ret != 0) { | |
574 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
575 | return ret; | |
576 | } | |
577 | ||
578 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), | |
579 | wm8737->supplies); | |
580 | if (ret != 0) { | |
581 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
582 | goto err_get; | |
583 | } | |
584 | ||
585 | ret = wm8737_reset(codec); | |
586 | if (ret < 0) { | |
587 | dev_err(codec->dev, "Failed to issue reset\n"); | |
588 | goto err_enable; | |
589 | } | |
590 | ||
591 | snd_soc_update_bits(codec, WM8737_LEFT_PGA_VOLUME, WM8737_LVU, | |
592 | WM8737_LVU); | |
593 | snd_soc_update_bits(codec, WM8737_RIGHT_PGA_VOLUME, WM8737_RVU, | |
594 | WM8737_RVU); | |
595 | ||
596 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
597 | ||
598 | /* Bias level configuration will have done an extra enable */ | |
599 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
600 | ||
022658be | 601 | snd_soc_add_codec_controls(codec, wm8737_snd_controls, |
2a9ae13a MB |
602 | ARRAY_SIZE(wm8737_snd_controls)); |
603 | wm8737_add_widgets(codec); | |
604 | ||
605 | return 0; | |
606 | ||
607 | err_enable: | |
608 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
609 | err_get: | |
610 | regulator_bulk_free(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
611 | ||
612 | return ret; | |
613 | } | |
614 | ||
615 | static int wm8737_remove(struct snd_soc_codec *codec) | |
616 | { | |
617 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
618 | ||
619 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
620 | regulator_bulk_free(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
621 | return 0; | |
622 | } | |
623 | ||
624 | static struct snd_soc_codec_driver soc_codec_dev_wm8737 = { | |
625 | .probe = wm8737_probe, | |
626 | .remove = wm8737_remove, | |
627 | .suspend = wm8737_suspend, | |
628 | .resume = wm8737_resume, | |
629 | .set_bias_level = wm8737_set_bias_level, | |
630 | ||
631 | .reg_cache_size = WM8737_REGISTER_COUNT - 1, /* Skip reset */ | |
632 | .reg_word_size = sizeof(u16), | |
633 | .reg_cache_default = wm8737_reg, | |
634 | }; | |
635 | ||
53a5a83d MB |
636 | static const struct of_device_id wm8737_of_match[] = { |
637 | { .compatible = "wlf,wm8737", }, | |
638 | { } | |
639 | }; | |
640 | ||
641 | MODULE_DEVICE_TABLE(of, wm8737_of_match); | |
642 | ||
2a9ae13a MB |
643 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
644 | static __devinit int wm8737_i2c_probe(struct i2c_client *i2c, | |
645 | const struct i2c_device_id *id) | |
646 | { | |
647 | struct wm8737_priv *wm8737; | |
648 | int ret; | |
649 | ||
650 | wm8737 = kzalloc(sizeof(struct wm8737_priv), GFP_KERNEL); | |
651 | if (wm8737 == NULL) | |
652 | return -ENOMEM; | |
653 | ||
654 | i2c_set_clientdata(i2c, wm8737); | |
655 | wm8737->control_type = SND_SOC_I2C; | |
656 | ||
657 | ret = snd_soc_register_codec(&i2c->dev, | |
658 | &soc_codec_dev_wm8737, &wm8737_dai, 1); | |
659 | if (ret < 0) | |
660 | kfree(wm8737); | |
661 | return ret; | |
662 | ||
663 | } | |
664 | ||
665 | static __devexit int wm8737_i2c_remove(struct i2c_client *client) | |
666 | { | |
667 | snd_soc_unregister_codec(&client->dev); | |
668 | kfree(i2c_get_clientdata(client)); | |
669 | return 0; | |
670 | } | |
671 | ||
672 | static const struct i2c_device_id wm8737_i2c_id[] = { | |
673 | { "wm8737", 0 }, | |
674 | { } | |
675 | }; | |
676 | MODULE_DEVICE_TABLE(i2c, wm8737_i2c_id); | |
677 | ||
678 | static struct i2c_driver wm8737_i2c_driver = { | |
679 | .driver = { | |
680 | .name = "wm8737", | |
681 | .owner = THIS_MODULE, | |
53a5a83d | 682 | .of_match_table = wm8737_of_match, |
2a9ae13a MB |
683 | }, |
684 | .probe = wm8737_i2c_probe, | |
685 | .remove = __devexit_p(wm8737_i2c_remove), | |
686 | .id_table = wm8737_i2c_id, | |
687 | }; | |
688 | #endif | |
689 | ||
690 | #if defined(CONFIG_SPI_MASTER) | |
691 | static int __devinit wm8737_spi_probe(struct spi_device *spi) | |
692 | { | |
693 | struct wm8737_priv *wm8737; | |
694 | int ret; | |
695 | ||
696 | wm8737 = kzalloc(sizeof(struct wm8737_priv), GFP_KERNEL); | |
697 | if (wm8737 == NULL) | |
698 | return -ENOMEM; | |
699 | ||
700 | wm8737->control_type = SND_SOC_SPI; | |
701 | spi_set_drvdata(spi, wm8737); | |
702 | ||
703 | ret = snd_soc_register_codec(&spi->dev, | |
704 | &soc_codec_dev_wm8737, &wm8737_dai, 1); | |
705 | if (ret < 0) | |
706 | kfree(wm8737); | |
707 | return ret; | |
708 | } | |
709 | ||
710 | static int __devexit wm8737_spi_remove(struct spi_device *spi) | |
711 | { | |
712 | snd_soc_unregister_codec(&spi->dev); | |
713 | kfree(spi_get_drvdata(spi)); | |
714 | return 0; | |
715 | } | |
716 | ||
717 | static struct spi_driver wm8737_spi_driver = { | |
718 | .driver = { | |
719 | .name = "wm8737", | |
720 | .owner = THIS_MODULE, | |
53a5a83d | 721 | .of_match_table = wm8737_of_match, |
2a9ae13a MB |
722 | }, |
723 | .probe = wm8737_spi_probe, | |
724 | .remove = __devexit_p(wm8737_spi_remove), | |
725 | }; | |
726 | #endif /* CONFIG_SPI_MASTER */ | |
727 | ||
728 | static int __init wm8737_modinit(void) | |
729 | { | |
730 | int ret; | |
731 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
732 | ret = i2c_add_driver(&wm8737_i2c_driver); | |
733 | if (ret != 0) { | |
734 | printk(KERN_ERR "Failed to register WM8737 I2C driver: %d\n", | |
735 | ret); | |
736 | } | |
737 | #endif | |
738 | #if defined(CONFIG_SPI_MASTER) | |
739 | ret = spi_register_driver(&wm8737_spi_driver); | |
740 | if (ret != 0) { | |
741 | printk(KERN_ERR "Failed to register WM8737 SPI driver: %d\n", | |
742 | ret); | |
743 | } | |
744 | #endif | |
745 | return 0; | |
746 | } | |
747 | module_init(wm8737_modinit); | |
748 | ||
749 | static void __exit wm8737_exit(void) | |
750 | { | |
751 | #if defined(CONFIG_SPI_MASTER) | |
752 | spi_unregister_driver(&wm8737_spi_driver); | |
753 | #endif | |
754 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
755 | i2c_del_driver(&wm8737_i2c_driver); | |
756 | #endif | |
757 | } | |
758 | module_exit(wm8737_exit); | |
759 | ||
760 | MODULE_DESCRIPTION("ASoC WM8737 driver"); | |
761 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
762 | MODULE_LICENSE("GPL"); |