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2a9ae13a MB |
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> | |
3ef8ac0d | 19 | #include <linux/regmap.h> |
2a9ae13a MB |
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 { | |
3ef8ac0d | 44 | struct regmap *regmap; |
2a9ae13a MB |
45 | struct regulator_bulk_data supplies[WM8737_NUM_SUPPLIES]; |
46 | unsigned int mclk; | |
47 | }; | |
48 | ||
3ef8ac0d MB |
49 | static const struct reg_default wm8737_reg_defaults[] = { |
50 | { 0, 0x00C3 }, /* R0 - Left PGA volume */ | |
51 | { 1, 0x00C3 }, /* R1 - Right PGA volume */ | |
52 | { 2, 0x0007 }, /* R2 - AUDIO path L */ | |
53 | { 3, 0x0007 }, /* R3 - AUDIO path R */ | |
54 | { 4, 0x0000 }, /* R4 - 3D Enhance */ | |
55 | { 5, 0x0000 }, /* R5 - ADC Control */ | |
56 | { 6, 0x0000 }, /* R6 - Power Management */ | |
57 | { 7, 0x000A }, /* R7 - Audio Format */ | |
58 | { 8, 0x0000 }, /* R8 - Clocking */ | |
59 | { 9, 0x000F }, /* R9 - MIC Preamp Control */ | |
60 | { 10, 0x0003 }, /* R10 - Misc Bias Control */ | |
61 | { 11, 0x0000 }, /* R11 - Noise Gate */ | |
62 | { 12, 0x007C }, /* R12 - ALC1 */ | |
63 | { 13, 0x0000 }, /* R13 - ALC2 */ | |
64 | { 14, 0x0032 }, /* R14 - ALC3 */ | |
2a9ae13a MB |
65 | }; |
66 | ||
3ef8ac0d MB |
67 | static bool wm8737_volatile(struct device *dev, unsigned int reg) |
68 | { | |
69 | switch (reg) { | |
70 | case WM8737_RESET: | |
71 | return true; | |
72 | default: | |
73 | return false; | |
74 | } | |
75 | } | |
76 | ||
2a9ae13a MB |
77 | static int wm8737_reset(struct snd_soc_codec *codec) |
78 | { | |
79 | return snd_soc_write(codec, WM8737_RESET, 0); | |
80 | } | |
81 | ||
82 | static const unsigned int micboost_tlv[] = { | |
83 | TLV_DB_RANGE_HEAD(4), | |
84 | 0, 0, TLV_DB_SCALE_ITEM(1300, 0, 0), | |
85 | 1, 1, TLV_DB_SCALE_ITEM(1800, 0, 0), | |
86 | 2, 2, TLV_DB_SCALE_ITEM(2800, 0, 0), | |
87 | 3, 3, TLV_DB_SCALE_ITEM(3300, 0, 0), | |
88 | }; | |
89 | static const DECLARE_TLV_DB_SCALE(pga_tlv, -9750, 50, 1); | |
90 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -600, 600, 0); | |
91 | static const DECLARE_TLV_DB_SCALE(ng_tlv, -7800, 600, 0); | |
fcd02e26 MB |
92 | static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -1200, 600, 0); |
93 | static const DECLARE_TLV_DB_SCALE(alc_target_tlv, -1800, 100, 0); | |
2a9ae13a MB |
94 | |
95 | static const char *micbias_enum_text[] = { | |
96 | "25%", | |
97 | "50%", | |
98 | "75%", | |
99 | "100%", | |
100 | }; | |
101 | ||
102 | static const struct soc_enum micbias_enum = | |
103 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 0, 4, micbias_enum_text); | |
104 | ||
105 | static const char *low_cutoff_text[] = { | |
106 | "Low", "High" | |
107 | }; | |
108 | ||
109 | static const struct soc_enum low_3d = | |
110 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 6, 2, low_cutoff_text); | |
111 | ||
112 | static const char *high_cutoff_text[] = { | |
113 | "High", "Low" | |
114 | }; | |
115 | ||
116 | static const struct soc_enum high_3d = | |
117 | SOC_ENUM_SINGLE(WM8737_3D_ENHANCE, 5, 2, high_cutoff_text); | |
118 | ||
fcd02e26 MB |
119 | static const char *alc_fn_text[] = { |
120 | "Disabled", "Right", "Left", "Stereo" | |
121 | }; | |
122 | ||
123 | static const struct soc_enum alc_fn = | |
124 | SOC_ENUM_SINGLE(WM8737_ALC1, 7, 4, alc_fn_text); | |
125 | ||
126 | static const char *alc_hold_text[] = { | |
127 | "0", "2.67ms", "5.33ms", "10.66ms", "21.32ms", "42.64ms", "85.28ms", | |
128 | "170.56ms", "341.12ms", "682.24ms", "1.364s", "2.728s", "5.458s", | |
129 | "10.916s", "21.832s", "43.691s" | |
130 | }; | |
131 | ||
132 | static const struct soc_enum alc_hold = | |
133 | SOC_ENUM_SINGLE(WM8737_ALC2, 0, 16, alc_hold_text); | |
134 | ||
135 | static const char *alc_atk_text[] = { | |
136 | "8.4ms", "16.8ms", "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", | |
137 | "1.075s", "2.15s", "4.3s", "8.6s" | |
138 | }; | |
139 | ||
140 | static const struct soc_enum alc_atk = | |
141 | SOC_ENUM_SINGLE(WM8737_ALC3, 0, 11, alc_atk_text); | |
142 | ||
143 | static const char *alc_dcy_text[] = { | |
144 | "33.6ms", "67.2ms", "134.4ms", "268.8ms", "537.6ms", "1.075s", "2.15s", | |
145 | "4.3s", "8.6s", "17.2s", "34.41s" | |
146 | }; | |
147 | ||
148 | static const struct soc_enum alc_dcy = | |
149 | SOC_ENUM_SINGLE(WM8737_ALC3, 4, 11, alc_dcy_text); | |
150 | ||
2a9ae13a MB |
151 | static const struct snd_kcontrol_new wm8737_snd_controls[] = { |
152 | SOC_DOUBLE_R_TLV("Mic Boost Volume", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
153 | 6, 3, 0, micboost_tlv), | |
154 | SOC_DOUBLE_R("Mic Boost Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
155 | 4, 1, 0), | |
156 | SOC_DOUBLE("Mic ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
157 | 3, 1, 0), | |
158 | ||
159 | SOC_DOUBLE_R_TLV("Capture Volume", WM8737_LEFT_PGA_VOLUME, | |
160 | WM8737_RIGHT_PGA_VOLUME, 0, 255, 0, pga_tlv), | |
161 | SOC_DOUBLE("Capture ZC Switch", WM8737_AUDIO_PATH_L, WM8737_AUDIO_PATH_R, | |
162 | 2, 1, 0), | |
163 | ||
164 | SOC_DOUBLE("INPUT1 DC Bias Switch", WM8737_MISC_BIAS_CONTROL, 0, 1, 1, 0), | |
165 | ||
166 | SOC_ENUM("Mic PGA Bias", micbias_enum), | |
167 | SOC_SINGLE("ADC Low Power Switch", WM8737_ADC_CONTROL, 2, 1, 0), | |
168 | SOC_SINGLE("High Pass Filter Switch", WM8737_ADC_CONTROL, 0, 1, 1), | |
169 | SOC_DOUBLE("Polarity Invert Switch", WM8737_ADC_CONTROL, 5, 6, 1, 0), | |
170 | ||
171 | SOC_SINGLE("3D Switch", WM8737_3D_ENHANCE, 0, 1, 0), | |
172 | SOC_SINGLE("3D Depth", WM8737_3D_ENHANCE, 1, 15, 0), | |
173 | SOC_ENUM("3D Low Cut-off", low_3d), | |
174 | SOC_ENUM("3D High Cut-off", low_3d), | |
175 | SOC_SINGLE_TLV("3D ADC Volume", WM8737_3D_ENHANCE, 7, 1, 1, adc_tlv), | |
176 | ||
177 | SOC_SINGLE("Noise Gate Switch", WM8737_NOISE_GATE, 0, 1, 0), | |
178 | SOC_SINGLE_TLV("Noise Gate Threshold Volume", WM8737_NOISE_GATE, 2, 7, 0, | |
179 | ng_tlv), | |
fcd02e26 MB |
180 | |
181 | SOC_ENUM("ALC", alc_fn), | |
182 | SOC_SINGLE_TLV("ALC Max Gain Volume", WM8737_ALC1, 4, 7, 0, alc_max_tlv), | |
183 | SOC_SINGLE_TLV("ALC Target Volume", WM8737_ALC1, 0, 15, 0, alc_target_tlv), | |
184 | SOC_ENUM("ALC Hold Time", alc_hold), | |
185 | SOC_SINGLE("ALC ZC Switch", WM8737_ALC2, 4, 1, 0), | |
186 | SOC_ENUM("ALC Attack Time", alc_atk), | |
187 | SOC_ENUM("ALC Decay Time", alc_dcy), | |
2a9ae13a MB |
188 | }; |
189 | ||
190 | static const char *linsel_text[] = { | |
191 | "LINPUT1", "LINPUT2", "LINPUT3", "LINPUT1 DC", | |
192 | }; | |
193 | ||
194 | static const struct soc_enum linsel_enum = | |
195 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_L, 7, 4, linsel_text); | |
196 | ||
197 | static const struct snd_kcontrol_new linsel_mux = | |
198 | SOC_DAPM_ENUM("LINSEL", linsel_enum); | |
199 | ||
200 | ||
201 | static const char *rinsel_text[] = { | |
202 | "RINPUT1", "RINPUT2", "RINPUT3", "RINPUT1 DC", | |
203 | }; | |
204 | ||
205 | static const struct soc_enum rinsel_enum = | |
206 | SOC_ENUM_SINGLE(WM8737_AUDIO_PATH_R, 7, 4, rinsel_text); | |
207 | ||
208 | static const struct snd_kcontrol_new rinsel_mux = | |
209 | SOC_DAPM_ENUM("RINSEL", rinsel_enum); | |
210 | ||
211 | static const char *bypass_text[] = { | |
212 | "Direct", "Preamp" | |
213 | }; | |
214 | ||
215 | static const struct soc_enum lbypass_enum = | |
216 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 2, 2, bypass_text); | |
217 | ||
218 | static const struct snd_kcontrol_new lbypass_mux = | |
219 | SOC_DAPM_ENUM("Left Bypass", lbypass_enum); | |
220 | ||
221 | ||
222 | static const struct soc_enum rbypass_enum = | |
223 | SOC_ENUM_SINGLE(WM8737_MIC_PREAMP_CONTROL, 3, 2, bypass_text); | |
224 | ||
225 | static const struct snd_kcontrol_new rbypass_mux = | |
226 | SOC_DAPM_ENUM("Left Bypass", rbypass_enum); | |
227 | ||
228 | static const struct snd_soc_dapm_widget wm8737_dapm_widgets[] = { | |
229 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
230 | SND_SOC_DAPM_INPUT("LINPUT2"), | |
231 | SND_SOC_DAPM_INPUT("LINPUT3"), | |
232 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
233 | SND_SOC_DAPM_INPUT("RINPUT2"), | |
234 | SND_SOC_DAPM_INPUT("RINPUT3"), | |
235 | SND_SOC_DAPM_INPUT("LACIN"), | |
236 | SND_SOC_DAPM_INPUT("RACIN"), | |
237 | ||
238 | SND_SOC_DAPM_MUX("LINSEL", SND_SOC_NOPM, 0, 0, &linsel_mux), | |
239 | SND_SOC_DAPM_MUX("RINSEL", SND_SOC_NOPM, 0, 0, &rinsel_mux), | |
240 | ||
241 | SND_SOC_DAPM_MUX("Left Preamp Mux", SND_SOC_NOPM, 0, 0, &lbypass_mux), | |
242 | SND_SOC_DAPM_MUX("Right Preamp Mux", SND_SOC_NOPM, 0, 0, &rbypass_mux), | |
243 | ||
244 | SND_SOC_DAPM_PGA("PGAL", WM8737_POWER_MANAGEMENT, 5, 0, NULL, 0), | |
245 | SND_SOC_DAPM_PGA("PGAR", WM8737_POWER_MANAGEMENT, 4, 0, NULL, 0), | |
246 | ||
247 | SND_SOC_DAPM_DAC("ADCL", NULL, WM8737_POWER_MANAGEMENT, 3, 0), | |
248 | SND_SOC_DAPM_DAC("ADCR", NULL, WM8737_POWER_MANAGEMENT, 2, 0), | |
249 | ||
250 | SND_SOC_DAPM_AIF_OUT("AIF", "Capture", 0, WM8737_POWER_MANAGEMENT, 6, 0), | |
251 | }; | |
252 | ||
253 | static const struct snd_soc_dapm_route intercon[] = { | |
254 | { "LINSEL", "LINPUT1", "LINPUT1" }, | |
255 | { "LINSEL", "LINPUT2", "LINPUT2" }, | |
256 | { "LINSEL", "LINPUT3", "LINPUT3" }, | |
257 | { "LINSEL", "LINPUT1 DC", "LINPUT1" }, | |
258 | ||
259 | { "RINSEL", "RINPUT1", "RINPUT1" }, | |
260 | { "RINSEL", "RINPUT2", "RINPUT2" }, | |
261 | { "RINSEL", "RINPUT3", "RINPUT3" }, | |
262 | { "RINSEL", "RINPUT1 DC", "RINPUT1" }, | |
263 | ||
264 | { "Left Preamp Mux", "Preamp", "LINSEL" }, | |
265 | { "Left Preamp Mux", "Direct", "LACIN" }, | |
266 | ||
267 | { "Right Preamp Mux", "Preamp", "RINSEL" }, | |
268 | { "Right Preamp Mux", "Direct", "RACIN" }, | |
269 | ||
270 | { "PGAL", NULL, "Left Preamp Mux" }, | |
271 | { "PGAR", NULL, "Right Preamp Mux" }, | |
272 | ||
273 | { "ADCL", NULL, "PGAL" }, | |
274 | { "ADCR", NULL, "PGAR" }, | |
275 | ||
276 | { "AIF", NULL, "ADCL" }, | |
277 | { "AIF", NULL, "ADCR" }, | |
278 | }; | |
279 | ||
280 | static int wm8737_add_widgets(struct snd_soc_codec *codec) | |
281 | { | |
282 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
283 | ||
284 | snd_soc_dapm_new_controls(dapm, wm8737_dapm_widgets, | |
285 | ARRAY_SIZE(wm8737_dapm_widgets)); | |
286 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | /* codec mclk clock divider coefficients */ | |
292 | static const struct { | |
293 | u32 mclk; | |
294 | u32 rate; | |
295 | u8 usb; | |
296 | u8 sr; | |
297 | } coeff_div[] = { | |
298 | { 12288000, 8000, 0, 0x4 }, | |
299 | { 12288000, 12000, 0, 0x8 }, | |
300 | { 12288000, 16000, 0, 0xa }, | |
301 | { 12288000, 24000, 0, 0x1c }, | |
302 | { 12288000, 32000, 0, 0xc }, | |
303 | { 12288000, 48000, 0, 0 }, | |
304 | { 12288000, 96000, 0, 0xe }, | |
305 | ||
306 | { 11289600, 8000, 0, 0x14 }, | |
307 | { 11289600, 11025, 0, 0x18 }, | |
308 | { 11289600, 22050, 0, 0x1a }, | |
309 | { 11289600, 44100, 0, 0x10 }, | |
310 | { 11289600, 88200, 0, 0x1e }, | |
311 | ||
312 | { 18432000, 8000, 0, 0x5 }, | |
313 | { 18432000, 12000, 0, 0x9 }, | |
314 | { 18432000, 16000, 0, 0xb }, | |
315 | { 18432000, 24000, 0, 0x1b }, | |
316 | { 18432000, 32000, 0, 0xd }, | |
317 | { 18432000, 48000, 0, 0x1 }, | |
318 | { 18432000, 96000, 0, 0x1f }, | |
319 | ||
320 | { 16934400, 8000, 0, 0x15 }, | |
321 | { 16934400, 11025, 0, 0x19 }, | |
322 | { 16934400, 22050, 0, 0x1b }, | |
323 | { 16934400, 44100, 0, 0x11 }, | |
324 | { 16934400, 88200, 0, 0x1f }, | |
325 | ||
326 | { 12000000, 8000, 1, 0x4 }, | |
327 | { 12000000, 11025, 1, 0x19 }, | |
328 | { 12000000, 12000, 1, 0x8 }, | |
329 | { 12000000, 16000, 1, 0xa }, | |
330 | { 12000000, 22050, 1, 0x1b }, | |
331 | { 12000000, 24000, 1, 0x1c }, | |
332 | { 12000000, 32000, 1, 0xc }, | |
333 | { 12000000, 44100, 1, 0x11 }, | |
334 | { 12000000, 48000, 1, 0x0 }, | |
335 | { 12000000, 88200, 1, 0x1f }, | |
336 | { 12000000, 96000, 1, 0xe }, | |
337 | }; | |
338 | ||
339 | static int wm8737_hw_params(struct snd_pcm_substream *substream, | |
340 | struct snd_pcm_hw_params *params, | |
341 | struct snd_soc_dai *dai) | |
342 | { | |
e6968a17 | 343 | struct snd_soc_codec *codec = dai->codec; |
2a9ae13a MB |
344 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); |
345 | int i; | |
346 | u16 clocking = 0; | |
347 | u16 af = 0; | |
348 | ||
349 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
350 | if (coeff_div[i].rate != params_rate(params)) | |
351 | continue; | |
352 | ||
353 | if (coeff_div[i].mclk == wm8737->mclk) | |
354 | break; | |
355 | ||
356 | if (coeff_div[i].mclk == wm8737->mclk * 2) { | |
357 | clocking |= WM8737_CLKDIV2; | |
358 | break; | |
359 | } | |
360 | } | |
361 | ||
362 | if (i == ARRAY_SIZE(coeff_div)) { | |
363 | dev_err(codec->dev, "%dHz MCLK can't support %dHz\n", | |
364 | wm8737->mclk, params_rate(params)); | |
365 | return -EINVAL; | |
366 | } | |
367 | ||
368 | clocking |= coeff_div[i].usb | (coeff_div[i].sr << WM8737_SR_SHIFT); | |
369 | ||
370 | switch (params_format(params)) { | |
371 | case SNDRV_PCM_FORMAT_S16_LE: | |
372 | break; | |
373 | case SNDRV_PCM_FORMAT_S20_3LE: | |
374 | af |= 0x8; | |
375 | break; | |
376 | case SNDRV_PCM_FORMAT_S24_LE: | |
377 | af |= 0x10; | |
378 | break; | |
379 | case SNDRV_PCM_FORMAT_S32_LE: | |
380 | af |= 0x18; | |
381 | break; | |
382 | default: | |
383 | return -EINVAL; | |
384 | } | |
385 | ||
386 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, WM8737_WL_MASK, af); | |
387 | snd_soc_update_bits(codec, WM8737_CLOCKING, | |
388 | WM8737_USB_MODE | WM8737_CLKDIV2 | WM8737_SR_MASK, | |
389 | clocking); | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
394 | static int wm8737_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
395 | int clk_id, unsigned int freq, int dir) | |
396 | { | |
397 | struct snd_soc_codec *codec = codec_dai->codec; | |
398 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
399 | int i; | |
400 | ||
401 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
402 | if (freq == coeff_div[i].mclk || | |
403 | freq == coeff_div[i].mclk * 2) { | |
404 | wm8737->mclk = freq; | |
405 | return 0; | |
406 | } | |
407 | } | |
408 | ||
409 | dev_err(codec->dev, "MCLK rate %dHz not supported\n", freq); | |
410 | ||
411 | return -EINVAL; | |
412 | } | |
413 | ||
414 | ||
415 | static int wm8737_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
416 | unsigned int fmt) | |
417 | { | |
418 | struct snd_soc_codec *codec = codec_dai->codec; | |
419 | u16 af = 0; | |
420 | ||
421 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
422 | case SND_SOC_DAIFMT_CBM_CFM: | |
423 | af |= WM8737_MS; | |
424 | break; | |
425 | case SND_SOC_DAIFMT_CBS_CFS: | |
426 | break; | |
427 | default: | |
428 | return -EINVAL; | |
429 | } | |
430 | ||
431 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
432 | case SND_SOC_DAIFMT_I2S: | |
433 | af |= 0x2; | |
434 | break; | |
435 | case SND_SOC_DAIFMT_RIGHT_J: | |
436 | break; | |
437 | case SND_SOC_DAIFMT_LEFT_J: | |
438 | af |= 0x1; | |
439 | break; | |
440 | case SND_SOC_DAIFMT_DSP_A: | |
441 | af |= 0x3; | |
442 | break; | |
443 | case SND_SOC_DAIFMT_DSP_B: | |
444 | af |= 0x13; | |
445 | break; | |
446 | default: | |
447 | return -EINVAL; | |
448 | } | |
449 | ||
450 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
451 | case SND_SOC_DAIFMT_NB_NF: | |
452 | break; | |
453 | case SND_SOC_DAIFMT_NB_IF: | |
454 | af |= WM8737_LRP; | |
455 | break; | |
456 | default: | |
457 | return -EINVAL; | |
458 | } | |
459 | ||
460 | snd_soc_update_bits(codec, WM8737_AUDIO_FORMAT, | |
461 | WM8737_FORMAT_MASK | WM8737_LRP | WM8737_MS, af); | |
462 | ||
463 | return 0; | |
464 | } | |
465 | ||
466 | static int wm8737_set_bias_level(struct snd_soc_codec *codec, | |
467 | enum snd_soc_bias_level level) | |
468 | { | |
469 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
470 | int ret; | |
471 | ||
472 | switch (level) { | |
473 | case SND_SOC_BIAS_ON: | |
474 | break; | |
475 | ||
476 | case SND_SOC_BIAS_PREPARE: | |
477 | /* VMID at 2*75k */ | |
478 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
479 | WM8737_VMIDSEL_MASK, 0); | |
480 | break; | |
481 | ||
482 | case SND_SOC_BIAS_STANDBY: | |
483 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { | |
484 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), | |
485 | wm8737->supplies); | |
486 | if (ret != 0) { | |
487 | dev_err(codec->dev, | |
488 | "Failed to enable supplies: %d\n", | |
489 | ret); | |
490 | return ret; | |
491 | } | |
492 | ||
3ef8ac0d | 493 | regcache_sync(wm8737->regmap); |
2a9ae13a MB |
494 | |
495 | /* Fast VMID ramp at 2*2.5k */ | |
496 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
497 | WM8737_VMIDSEL_MASK, 0x4); | |
498 | ||
499 | /* Bring VMID up */ | |
500 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, | |
501 | WM8737_VMID_MASK | | |
502 | WM8737_VREF_MASK, | |
503 | WM8737_VMID_MASK | | |
504 | WM8737_VREF_MASK); | |
505 | ||
506 | msleep(500); | |
507 | } | |
508 | ||
509 | /* VMID at 2*300k */ | |
510 | snd_soc_update_bits(codec, WM8737_MISC_BIAS_CONTROL, | |
511 | WM8737_VMIDSEL_MASK, 2); | |
512 | ||
513 | break; | |
514 | ||
515 | case SND_SOC_BIAS_OFF: | |
516 | snd_soc_update_bits(codec, WM8737_POWER_MANAGEMENT, | |
517 | WM8737_VMID_MASK | WM8737_VREF_MASK, 0); | |
518 | ||
519 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), | |
520 | wm8737->supplies); | |
521 | break; | |
522 | } | |
523 | ||
524 | codec->dapm.bias_level = level; | |
525 | return 0; | |
526 | } | |
527 | ||
528 | #define WM8737_RATES SNDRV_PCM_RATE_8000_96000 | |
529 | ||
530 | #define WM8737_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
531 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
532 | ||
85e7652d | 533 | static const struct snd_soc_dai_ops wm8737_dai_ops = { |
2a9ae13a MB |
534 | .hw_params = wm8737_hw_params, |
535 | .set_sysclk = wm8737_set_dai_sysclk, | |
536 | .set_fmt = wm8737_set_dai_fmt, | |
537 | }; | |
538 | ||
539 | static struct snd_soc_dai_driver wm8737_dai = { | |
540 | .name = "wm8737", | |
541 | .capture = { | |
542 | .stream_name = "Capture", | |
543 | .channels_min = 2, /* Mono modes not yet supported */ | |
544 | .channels_max = 2, | |
545 | .rates = WM8737_RATES, | |
546 | .formats = WM8737_FORMATS, | |
547 | }, | |
548 | .ops = &wm8737_dai_ops, | |
549 | }; | |
550 | ||
551 | #ifdef CONFIG_PM | |
84b315ee | 552 | static int wm8737_suspend(struct snd_soc_codec *codec) |
2a9ae13a MB |
553 | { |
554 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
555 | return 0; | |
556 | } | |
557 | ||
558 | static int wm8737_resume(struct snd_soc_codec *codec) | |
559 | { | |
560 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
561 | return 0; | |
562 | } | |
563 | #else | |
564 | #define wm8737_suspend NULL | |
565 | #define wm8737_resume NULL | |
566 | #endif | |
567 | ||
568 | static int wm8737_probe(struct snd_soc_codec *codec) | |
569 | { | |
570 | struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec); | |
4f69bb31 | 571 | int ret; |
2a9ae13a | 572 | |
3ef8ac0d | 573 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP); |
2a9ae13a MB |
574 | if (ret != 0) { |
575 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
576 | return ret; | |
577 | } | |
578 | ||
2a9ae13a MB |
579 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8737->supplies), |
580 | wm8737->supplies); | |
581 | if (ret != 0) { | |
582 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
583 | goto err_get; | |
584 | } | |
585 | ||
586 | ret = wm8737_reset(codec); | |
587 | if (ret < 0) { | |
588 | dev_err(codec->dev, "Failed to issue reset\n"); | |
589 | goto err_enable; | |
590 | } | |
591 | ||
592 | snd_soc_update_bits(codec, WM8737_LEFT_PGA_VOLUME, WM8737_LVU, | |
593 | WM8737_LVU); | |
594 | snd_soc_update_bits(codec, WM8737_RIGHT_PGA_VOLUME, WM8737_RVU, | |
595 | WM8737_RVU); | |
596 | ||
597 | wm8737_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
598 | ||
599 | /* Bias level configuration will have done an extra enable */ | |
600 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
601 | ||
022658be | 602 | snd_soc_add_codec_controls(codec, wm8737_snd_controls, |
2a9ae13a MB |
603 | ARRAY_SIZE(wm8737_snd_controls)); |
604 | wm8737_add_widgets(codec); | |
605 | ||
606 | return 0; | |
607 | ||
608 | err_enable: | |
609 | regulator_bulk_disable(ARRAY_SIZE(wm8737->supplies), wm8737->supplies); | |
610 | err_get: | |
2a9ae13a MB |
611 | return ret; |
612 | } | |
613 | ||
614 | static int wm8737_remove(struct snd_soc_codec *codec) | |
615 | { | |
2a9ae13a | 616 | wm8737_set_bias_level(codec, SND_SOC_BIAS_OFF); |
2a9ae13a MB |
617 | return 0; |
618 | } | |
619 | ||
620 | static struct snd_soc_codec_driver soc_codec_dev_wm8737 = { | |
621 | .probe = wm8737_probe, | |
622 | .remove = wm8737_remove, | |
623 | .suspend = wm8737_suspend, | |
624 | .resume = wm8737_resume, | |
625 | .set_bias_level = wm8737_set_bias_level, | |
2a9ae13a MB |
626 | }; |
627 | ||
53a5a83d MB |
628 | static const struct of_device_id wm8737_of_match[] = { |
629 | { .compatible = "wlf,wm8737", }, | |
630 | { } | |
631 | }; | |
632 | ||
633 | MODULE_DEVICE_TABLE(of, wm8737_of_match); | |
634 | ||
3ef8ac0d MB |
635 | static const struct regmap_config wm8737_regmap = { |
636 | .reg_bits = 7, | |
637 | .val_bits = 9, | |
638 | .max_register = WM8737_MAX_REGISTER, | |
639 | ||
640 | .reg_defaults = wm8737_reg_defaults, | |
641 | .num_reg_defaults = ARRAY_SIZE(wm8737_reg_defaults), | |
642 | .cache_type = REGCACHE_RBTREE, | |
643 | ||
644 | .volatile_reg = wm8737_volatile, | |
645 | }; | |
646 | ||
2a9ae13a | 647 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
7a79e94e BP |
648 | static int wm8737_i2c_probe(struct i2c_client *i2c, |
649 | const struct i2c_device_id *id) | |
2a9ae13a MB |
650 | { |
651 | struct wm8737_priv *wm8737; | |
4f69bb31 | 652 | int ret, i; |
2a9ae13a | 653 | |
65fdd9bf MB |
654 | wm8737 = devm_kzalloc(&i2c->dev, sizeof(struct wm8737_priv), |
655 | GFP_KERNEL); | |
2a9ae13a MB |
656 | if (wm8737 == NULL) |
657 | return -ENOMEM; | |
658 | ||
4f69bb31 MB |
659 | for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) |
660 | wm8737->supplies[i].supply = wm8737_supply_names[i]; | |
661 | ||
662 | ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8737->supplies), | |
663 | wm8737->supplies); | |
664 | if (ret != 0) { | |
665 | dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); | |
666 | return ret; | |
667 | } | |
668 | ||
3ef8ac0d MB |
669 | wm8737->regmap = devm_regmap_init_i2c(i2c, &wm8737_regmap); |
670 | if (IS_ERR(wm8737->regmap)) | |
671 | return PTR_ERR(wm8737->regmap); | |
672 | ||
2a9ae13a | 673 | i2c_set_clientdata(i2c, wm8737); |
2a9ae13a MB |
674 | |
675 | ret = snd_soc_register_codec(&i2c->dev, | |
676 | &soc_codec_dev_wm8737, &wm8737_dai, 1); | |
65fdd9bf | 677 | |
2a9ae13a MB |
678 | return ret; |
679 | ||
680 | } | |
681 | ||
7a79e94e | 682 | static int wm8737_i2c_remove(struct i2c_client *client) |
2a9ae13a MB |
683 | { |
684 | snd_soc_unregister_codec(&client->dev); | |
65fdd9bf | 685 | |
2a9ae13a MB |
686 | return 0; |
687 | } | |
688 | ||
689 | static const struct i2c_device_id wm8737_i2c_id[] = { | |
690 | { "wm8737", 0 }, | |
691 | { } | |
692 | }; | |
693 | MODULE_DEVICE_TABLE(i2c, wm8737_i2c_id); | |
694 | ||
695 | static struct i2c_driver wm8737_i2c_driver = { | |
696 | .driver = { | |
697 | .name = "wm8737", | |
698 | .owner = THIS_MODULE, | |
53a5a83d | 699 | .of_match_table = wm8737_of_match, |
2a9ae13a MB |
700 | }, |
701 | .probe = wm8737_i2c_probe, | |
7a79e94e | 702 | .remove = wm8737_i2c_remove, |
2a9ae13a MB |
703 | .id_table = wm8737_i2c_id, |
704 | }; | |
705 | #endif | |
706 | ||
707 | #if defined(CONFIG_SPI_MASTER) | |
7a79e94e | 708 | static int wm8737_spi_probe(struct spi_device *spi) |
2a9ae13a MB |
709 | { |
710 | struct wm8737_priv *wm8737; | |
4f69bb31 | 711 | int ret, i; |
2a9ae13a | 712 | |
65fdd9bf MB |
713 | wm8737 = devm_kzalloc(&spi->dev, sizeof(struct wm8737_priv), |
714 | GFP_KERNEL); | |
2a9ae13a MB |
715 | if (wm8737 == NULL) |
716 | return -ENOMEM; | |
717 | ||
4f69bb31 MB |
718 | for (i = 0; i < ARRAY_SIZE(wm8737->supplies); i++) |
719 | wm8737->supplies[i].supply = wm8737_supply_names[i]; | |
720 | ||
721 | ret = devm_regulator_bulk_get(&spi->dev, ARRAY_SIZE(wm8737->supplies), | |
722 | wm8737->supplies); | |
723 | if (ret != 0) { | |
724 | dev_err(&spi->dev, "Failed to request supplies: %d\n", ret); | |
725 | return ret; | |
726 | } | |
727 | ||
3ef8ac0d MB |
728 | wm8737->regmap = devm_regmap_init_spi(spi, &wm8737_regmap); |
729 | if (IS_ERR(wm8737->regmap)) | |
730 | return PTR_ERR(wm8737->regmap); | |
731 | ||
2a9ae13a MB |
732 | spi_set_drvdata(spi, wm8737); |
733 | ||
734 | ret = snd_soc_register_codec(&spi->dev, | |
735 | &soc_codec_dev_wm8737, &wm8737_dai, 1); | |
65fdd9bf | 736 | |
2a9ae13a MB |
737 | return ret; |
738 | } | |
739 | ||
7a79e94e | 740 | static int wm8737_spi_remove(struct spi_device *spi) |
2a9ae13a MB |
741 | { |
742 | snd_soc_unregister_codec(&spi->dev); | |
65fdd9bf | 743 | |
2a9ae13a MB |
744 | return 0; |
745 | } | |
746 | ||
747 | static struct spi_driver wm8737_spi_driver = { | |
748 | .driver = { | |
749 | .name = "wm8737", | |
750 | .owner = THIS_MODULE, | |
53a5a83d | 751 | .of_match_table = wm8737_of_match, |
2a9ae13a MB |
752 | }, |
753 | .probe = wm8737_spi_probe, | |
7a79e94e | 754 | .remove = wm8737_spi_remove, |
2a9ae13a MB |
755 | }; |
756 | #endif /* CONFIG_SPI_MASTER */ | |
757 | ||
758 | static int __init wm8737_modinit(void) | |
759 | { | |
760 | int ret; | |
761 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
762 | ret = i2c_add_driver(&wm8737_i2c_driver); | |
763 | if (ret != 0) { | |
764 | printk(KERN_ERR "Failed to register WM8737 I2C driver: %d\n", | |
765 | ret); | |
766 | } | |
767 | #endif | |
768 | #if defined(CONFIG_SPI_MASTER) | |
769 | ret = spi_register_driver(&wm8737_spi_driver); | |
770 | if (ret != 0) { | |
771 | printk(KERN_ERR "Failed to register WM8737 SPI driver: %d\n", | |
772 | ret); | |
773 | } | |
774 | #endif | |
775 | return 0; | |
776 | } | |
777 | module_init(wm8737_modinit); | |
778 | ||
779 | static void __exit wm8737_exit(void) | |
780 | { | |
781 | #if defined(CONFIG_SPI_MASTER) | |
782 | spi_unregister_driver(&wm8737_spi_driver); | |
783 | #endif | |
784 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
785 | i2c_del_driver(&wm8737_i2c_driver); | |
786 | #endif | |
787 | } | |
788 | module_exit(wm8737_exit); | |
789 | ||
790 | MODULE_DESCRIPTION("ASoC WM8737 driver"); | |
791 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
792 | MODULE_LICENSE("GPL"); |