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c046fd4d DP |
1 | /* |
2 | * wm8770.c -- WM8770 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2010 Wolfson Microelectronics plc | |
5 | * | |
6 | * Author: Dimitris Papastamos <dp@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> | |
13c7d08f | 17 | #include <linux/of_device.h> |
c046fd4d | 18 | #include <linux/pm.h> |
c046fd4d DP |
19 | #include <linux/spi/spi.h> |
20 | #include <linux/regulator/consumer.h> | |
21 | #include <linux/slab.h> | |
22 | #include <sound/core.h> | |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
c046fd4d DP |
26 | #include <sound/initval.h> |
27 | #include <sound/tlv.h> | |
28 | ||
29 | #include "wm8770.h" | |
30 | ||
31 | #define WM8770_NUM_SUPPLIES 3 | |
32 | static const char *wm8770_supply_names[WM8770_NUM_SUPPLIES] = { | |
33 | "AVDD1", | |
34 | "AVDD2", | |
35 | "DVDD" | |
36 | }; | |
37 | ||
38 | static const u16 wm8770_reg_defs[WM8770_CACHEREGNUM] = { | |
39 | 0x7f, 0x7f, 0x7f, 0x7f, | |
40 | 0x7f, 0x7f, 0x7f, 0x7f, | |
41 | 0x7f, 0xff, 0xff, 0xff, | |
42 | 0xff, 0xff, 0xff, 0xff, | |
43 | 0xff, 0xff, 0, 0x90, 0, | |
44 | 0, 0x22, 0x22, 0x3e, | |
45 | 0xc, 0xc, 0x100, 0x189, | |
46 | 0x189, 0x8770 | |
47 | }; | |
48 | ||
49 | struct wm8770_priv { | |
50 | enum snd_soc_control_type control_type; | |
51 | struct regulator_bulk_data supplies[WM8770_NUM_SUPPLIES]; | |
52 | struct notifier_block disable_nb[WM8770_NUM_SUPPLIES]; | |
53 | struct snd_soc_codec *codec; | |
54 | int sysclk; | |
55 | }; | |
56 | ||
57 | static int vout12supply_event(struct snd_soc_dapm_widget *w, | |
58 | struct snd_kcontrol *kcontrol, int event); | |
59 | static int vout34supply_event(struct snd_soc_dapm_widget *w, | |
60 | struct snd_kcontrol *kcontrol, int event); | |
61 | ||
62 | /* | |
63 | * We can't use the same notifier block for more than one supply and | |
64 | * there's no way I can see to get from a callback to the caller | |
65 | * except container_of(). | |
66 | */ | |
67 | #define WM8770_REGULATOR_EVENT(n) \ | |
68 | static int wm8770_regulator_event_##n(struct notifier_block *nb, \ | |
69 | unsigned long event, void *data) \ | |
70 | { \ | |
71 | struct wm8770_priv *wm8770 = container_of(nb, struct wm8770_priv, \ | |
72 | disable_nb[n]); \ | |
73 | if (event & REGULATOR_EVENT_DISABLE) { \ | |
74 | wm8770->codec->cache_sync = 1; \ | |
75 | } \ | |
76 | return 0; \ | |
77 | } | |
78 | ||
79 | WM8770_REGULATOR_EVENT(0) | |
80 | WM8770_REGULATOR_EVENT(1) | |
81 | WM8770_REGULATOR_EVENT(2) | |
82 | ||
83 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 100, 0); | |
84 | static const DECLARE_TLV_DB_SCALE(dac_dig_tlv, -12750, 50, 1); | |
85 | static const DECLARE_TLV_DB_SCALE(dac_alg_tlv, -12700, 100, 1); | |
86 | ||
87 | static const char *dac_phase_text[][2] = { | |
88 | { "DAC1 Normal", "DAC1 Inverted" }, | |
89 | { "DAC2 Normal", "DAC2 Inverted" }, | |
90 | { "DAC3 Normal", "DAC3 Inverted" }, | |
91 | { "DAC4 Normal", "DAC4 Inverted" }, | |
92 | }; | |
93 | ||
94 | static const struct soc_enum dac_phase[] = { | |
95 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 0, 1, 2, dac_phase_text[0]), | |
96 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 2, 3, 2, dac_phase_text[1]), | |
97 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 4, 5, 2, dac_phase_text[2]), | |
98 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 6, 7, 2, dac_phase_text[3]), | |
99 | }; | |
100 | ||
101 | static const struct snd_kcontrol_new wm8770_snd_controls[] = { | |
102 | /* global DAC playback controls */ | |
103 | SOC_SINGLE_TLV("DAC Playback Volume", WM8770_MSDIGVOL, 0, 255, 0, | |
104 | dac_dig_tlv), | |
105 | SOC_SINGLE("DAC Playback Switch", WM8770_DACMUTE, 4, 1, 1), | |
106 | SOC_SINGLE("DAC Playback ZC Switch", WM8770_DACCTRL1, 0, 1, 0), | |
107 | ||
108 | /* global VOUT playback controls */ | |
109 | SOC_SINGLE_TLV("VOUT Playback Volume", WM8770_MSALGVOL, 0, 127, 0, | |
110 | dac_alg_tlv), | |
111 | SOC_SINGLE("VOUT Playback ZC Switch", WM8770_MSALGVOL, 7, 1, 0), | |
112 | ||
113 | /* VOUT1/2/3/4 specific controls */ | |
114 | SOC_DOUBLE_R_TLV("VOUT1 Playback Volume", WM8770_VOUT1LVOL, | |
115 | WM8770_VOUT1RVOL, 0, 127, 0, dac_alg_tlv), | |
116 | SOC_DOUBLE_R("VOUT1 Playback ZC Switch", WM8770_VOUT1LVOL, | |
117 | WM8770_VOUT1RVOL, 7, 1, 0), | |
118 | SOC_DOUBLE_R_TLV("VOUT2 Playback Volume", WM8770_VOUT2LVOL, | |
119 | WM8770_VOUT2RVOL, 0, 127, 0, dac_alg_tlv), | |
120 | SOC_DOUBLE_R("VOUT2 Playback ZC Switch", WM8770_VOUT2LVOL, | |
121 | WM8770_VOUT2RVOL, 7, 1, 0), | |
122 | SOC_DOUBLE_R_TLV("VOUT3 Playback Volume", WM8770_VOUT3LVOL, | |
123 | WM8770_VOUT3RVOL, 0, 127, 0, dac_alg_tlv), | |
124 | SOC_DOUBLE_R("VOUT3 Playback ZC Switch", WM8770_VOUT3LVOL, | |
125 | WM8770_VOUT3RVOL, 7, 1, 0), | |
126 | SOC_DOUBLE_R_TLV("VOUT4 Playback Volume", WM8770_VOUT4LVOL, | |
127 | WM8770_VOUT4RVOL, 0, 127, 0, dac_alg_tlv), | |
128 | SOC_DOUBLE_R("VOUT4 Playback ZC Switch", WM8770_VOUT4LVOL, | |
129 | WM8770_VOUT4RVOL, 7, 1, 0), | |
130 | ||
131 | /* DAC1/2/3/4 specific controls */ | |
132 | SOC_DOUBLE_R_TLV("DAC1 Playback Volume", WM8770_DAC1LVOL, | |
133 | WM8770_DAC1RVOL, 0, 255, 0, dac_dig_tlv), | |
134 | SOC_SINGLE("DAC1 Deemphasis Switch", WM8770_DACCTRL2, 0, 1, 0), | |
135 | SOC_ENUM("DAC1 Phase", dac_phase[0]), | |
136 | SOC_DOUBLE_R_TLV("DAC2 Playback Volume", WM8770_DAC2LVOL, | |
137 | WM8770_DAC2RVOL, 0, 255, 0, dac_dig_tlv), | |
138 | SOC_SINGLE("DAC2 Deemphasis Switch", WM8770_DACCTRL2, 1, 1, 0), | |
139 | SOC_ENUM("DAC2 Phase", dac_phase[1]), | |
140 | SOC_DOUBLE_R_TLV("DAC3 Playback Volume", WM8770_DAC3LVOL, | |
141 | WM8770_DAC3RVOL, 0, 255, 0, dac_dig_tlv), | |
142 | SOC_SINGLE("DAC3 Deemphasis Switch", WM8770_DACCTRL2, 2, 1, 0), | |
143 | SOC_ENUM("DAC3 Phase", dac_phase[2]), | |
144 | SOC_DOUBLE_R_TLV("DAC4 Playback Volume", WM8770_DAC4LVOL, | |
145 | WM8770_DAC4RVOL, 0, 255, 0, dac_dig_tlv), | |
146 | SOC_SINGLE("DAC4 Deemphasis Switch", WM8770_DACCTRL2, 3, 1, 0), | |
147 | SOC_ENUM("DAC4 Phase", dac_phase[3]), | |
148 | ||
149 | /* ADC specific controls */ | |
150 | SOC_DOUBLE_R_TLV("Capture Volume", WM8770_ADCLCTRL, WM8770_ADCRCTRL, | |
151 | 0, 31, 0, adc_tlv), | |
152 | SOC_DOUBLE_R("Capture Switch", WM8770_ADCLCTRL, WM8770_ADCRCTRL, | |
153 | 5, 1, 1), | |
154 | ||
155 | /* other controls */ | |
156 | SOC_SINGLE("ADC 128x Oversampling Switch", WM8770_MSTRCTRL, 3, 1, 0), | |
157 | SOC_SINGLE("ADC Highpass Filter Switch", WM8770_IFACECTRL, 8, 1, 1) | |
158 | }; | |
159 | ||
160 | static const char *ain_text[] = { | |
161 | "AIN1", "AIN2", "AIN3", "AIN4", | |
162 | "AIN5", "AIN6", "AIN7", "AIN8" | |
163 | }; | |
164 | ||
165 | static const struct soc_enum ain_enum = | |
166 | SOC_ENUM_DOUBLE(WM8770_ADCMUX, 0, 4, 8, ain_text); | |
167 | ||
168 | static const struct snd_kcontrol_new ain_mux = | |
169 | SOC_DAPM_ENUM("Capture Mux", ain_enum); | |
170 | ||
171 | static const struct snd_kcontrol_new vout1_mix_controls[] = { | |
172 | SOC_DAPM_SINGLE("DAC1 Switch", WM8770_OUTMUX1, 0, 1, 0), | |
173 | SOC_DAPM_SINGLE("AUX1 Switch", WM8770_OUTMUX1, 1, 1, 0), | |
174 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX1, 2, 1, 0) | |
175 | }; | |
176 | ||
177 | static const struct snd_kcontrol_new vout2_mix_controls[] = { | |
178 | SOC_DAPM_SINGLE("DAC2 Switch", WM8770_OUTMUX1, 3, 1, 0), | |
179 | SOC_DAPM_SINGLE("AUX2 Switch", WM8770_OUTMUX1, 4, 1, 0), | |
180 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX1, 5, 1, 0) | |
181 | }; | |
182 | ||
183 | static const struct snd_kcontrol_new vout3_mix_controls[] = { | |
184 | SOC_DAPM_SINGLE("DAC3 Switch", WM8770_OUTMUX2, 0, 1, 0), | |
185 | SOC_DAPM_SINGLE("AUX3 Switch", WM8770_OUTMUX2, 1, 1, 0), | |
186 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX2, 2, 1, 0) | |
187 | }; | |
188 | ||
189 | static const struct snd_kcontrol_new vout4_mix_controls[] = { | |
190 | SOC_DAPM_SINGLE("DAC4 Switch", WM8770_OUTMUX2, 3, 1, 0), | |
191 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX2, 4, 1, 0) | |
192 | }; | |
193 | ||
194 | static const struct snd_soc_dapm_widget wm8770_dapm_widgets[] = { | |
195 | SND_SOC_DAPM_INPUT("AUX1"), | |
196 | SND_SOC_DAPM_INPUT("AUX2"), | |
197 | SND_SOC_DAPM_INPUT("AUX3"), | |
198 | ||
199 | SND_SOC_DAPM_INPUT("AIN1"), | |
200 | SND_SOC_DAPM_INPUT("AIN2"), | |
201 | SND_SOC_DAPM_INPUT("AIN3"), | |
202 | SND_SOC_DAPM_INPUT("AIN4"), | |
203 | SND_SOC_DAPM_INPUT("AIN5"), | |
204 | SND_SOC_DAPM_INPUT("AIN6"), | |
205 | SND_SOC_DAPM_INPUT("AIN7"), | |
206 | SND_SOC_DAPM_INPUT("AIN8"), | |
207 | ||
208 | SND_SOC_DAPM_MUX("Capture Mux", WM8770_ADCMUX, 8, 1, &ain_mux), | |
209 | ||
210 | SND_SOC_DAPM_ADC("ADC", "Capture", WM8770_PWDNCTRL, 1, 1), | |
211 | ||
212 | SND_SOC_DAPM_DAC("DAC1", "Playback", WM8770_PWDNCTRL, 2, 1), | |
213 | SND_SOC_DAPM_DAC("DAC2", "Playback", WM8770_PWDNCTRL, 3, 1), | |
214 | SND_SOC_DAPM_DAC("DAC3", "Playback", WM8770_PWDNCTRL, 4, 1), | |
215 | SND_SOC_DAPM_DAC("DAC4", "Playback", WM8770_PWDNCTRL, 5, 1), | |
216 | ||
217 | SND_SOC_DAPM_SUPPLY("VOUT12 Supply", SND_SOC_NOPM, 0, 0, | |
218 | vout12supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
219 | SND_SOC_DAPM_SUPPLY("VOUT34 Supply", SND_SOC_NOPM, 0, 0, | |
220 | vout34supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
221 | ||
222 | SND_SOC_DAPM_MIXER("VOUT1 Mixer", SND_SOC_NOPM, 0, 0, | |
223 | vout1_mix_controls, ARRAY_SIZE(vout1_mix_controls)), | |
224 | SND_SOC_DAPM_MIXER("VOUT2 Mixer", SND_SOC_NOPM, 0, 0, | |
225 | vout2_mix_controls, ARRAY_SIZE(vout2_mix_controls)), | |
226 | SND_SOC_DAPM_MIXER("VOUT3 Mixer", SND_SOC_NOPM, 0, 0, | |
227 | vout3_mix_controls, ARRAY_SIZE(vout3_mix_controls)), | |
228 | SND_SOC_DAPM_MIXER("VOUT4 Mixer", SND_SOC_NOPM, 0, 0, | |
229 | vout4_mix_controls, ARRAY_SIZE(vout4_mix_controls)), | |
230 | ||
231 | SND_SOC_DAPM_OUTPUT("VOUT1"), | |
232 | SND_SOC_DAPM_OUTPUT("VOUT2"), | |
233 | SND_SOC_DAPM_OUTPUT("VOUT3"), | |
234 | SND_SOC_DAPM_OUTPUT("VOUT4") | |
235 | }; | |
236 | ||
237 | static const struct snd_soc_dapm_route wm8770_intercon[] = { | |
238 | { "Capture Mux", "AIN1", "AIN1" }, | |
239 | { "Capture Mux", "AIN2", "AIN2" }, | |
240 | { "Capture Mux", "AIN3", "AIN3" }, | |
241 | { "Capture Mux", "AIN4", "AIN4" }, | |
242 | { "Capture Mux", "AIN5", "AIN5" }, | |
243 | { "Capture Mux", "AIN6", "AIN6" }, | |
244 | { "Capture Mux", "AIN7", "AIN7" }, | |
245 | { "Capture Mux", "AIN8", "AIN8" }, | |
246 | ||
247 | { "ADC", NULL, "Capture Mux" }, | |
248 | ||
249 | { "VOUT1 Mixer", NULL, "VOUT12 Supply" }, | |
250 | { "VOUT1 Mixer", "DAC1 Switch", "DAC1" }, | |
251 | { "VOUT1 Mixer", "AUX1 Switch", "AUX1" }, | |
252 | { "VOUT1 Mixer", "Bypass Switch", "Capture Mux" }, | |
253 | ||
254 | { "VOUT2 Mixer", NULL, "VOUT12 Supply" }, | |
255 | { "VOUT2 Mixer", "DAC2 Switch", "DAC2" }, | |
256 | { "VOUT2 Mixer", "AUX2 Switch", "AUX2" }, | |
257 | { "VOUT2 Mixer", "Bypass Switch", "Capture Mux" }, | |
258 | ||
259 | { "VOUT3 Mixer", NULL, "VOUT34 Supply" }, | |
260 | { "VOUT3 Mixer", "DAC3 Switch", "DAC3" }, | |
261 | { "VOUT3 Mixer", "AUX3 Switch", "AUX3" }, | |
262 | { "VOUT3 Mixer", "Bypass Switch", "Capture Mux" }, | |
263 | ||
264 | { "VOUT4 Mixer", NULL, "VOUT34 Supply" }, | |
265 | { "VOUT4 Mixer", "DAC4 Switch", "DAC4" }, | |
266 | { "VOUT4 Mixer", "Bypass Switch", "Capture Mux" }, | |
267 | ||
268 | { "VOUT1", NULL, "VOUT1 Mixer" }, | |
269 | { "VOUT2", NULL, "VOUT2 Mixer" }, | |
270 | { "VOUT3", NULL, "VOUT3 Mixer" }, | |
271 | { "VOUT4", NULL, "VOUT4 Mixer" } | |
272 | }; | |
273 | ||
274 | static int vout12supply_event(struct snd_soc_dapm_widget *w, | |
275 | struct snd_kcontrol *kcontrol, int event) | |
276 | { | |
277 | struct snd_soc_codec *codec; | |
278 | ||
279 | codec = w->codec; | |
280 | ||
281 | switch (event) { | |
282 | case SND_SOC_DAPM_PRE_PMU: | |
283 | snd_soc_update_bits(codec, WM8770_OUTMUX1, 0x180, 0); | |
284 | break; | |
285 | case SND_SOC_DAPM_POST_PMD: | |
286 | snd_soc_update_bits(codec, WM8770_OUTMUX1, 0x180, 0x180); | |
287 | break; | |
288 | } | |
289 | ||
290 | return 0; | |
291 | } | |
292 | ||
293 | static int vout34supply_event(struct snd_soc_dapm_widget *w, | |
294 | struct snd_kcontrol *kcontrol, int event) | |
295 | { | |
296 | struct snd_soc_codec *codec; | |
297 | ||
298 | codec = w->codec; | |
299 | ||
300 | switch (event) { | |
301 | case SND_SOC_DAPM_PRE_PMU: | |
302 | snd_soc_update_bits(codec, WM8770_OUTMUX2, 0x180, 0); | |
303 | break; | |
304 | case SND_SOC_DAPM_POST_PMD: | |
305 | snd_soc_update_bits(codec, WM8770_OUTMUX2, 0x180, 0x180); | |
306 | break; | |
307 | } | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
312 | static int wm8770_reset(struct snd_soc_codec *codec) | |
313 | { | |
314 | return snd_soc_write(codec, WM8770_RESET, 0); | |
315 | } | |
316 | ||
317 | static int wm8770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
318 | { | |
319 | struct snd_soc_codec *codec; | |
320 | int iface, master; | |
321 | ||
322 | codec = dai->codec; | |
323 | ||
324 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
325 | case SND_SOC_DAIFMT_CBM_CFM: | |
326 | master = 0x100; | |
327 | break; | |
328 | case SND_SOC_DAIFMT_CBS_CFS: | |
329 | master = 0; | |
330 | break; | |
331 | default: | |
332 | return -EINVAL; | |
333 | } | |
334 | ||
335 | iface = 0; | |
336 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
337 | case SND_SOC_DAIFMT_I2S: | |
338 | iface |= 0x2; | |
339 | break; | |
340 | case SND_SOC_DAIFMT_RIGHT_J: | |
341 | break; | |
342 | case SND_SOC_DAIFMT_LEFT_J: | |
343 | iface |= 0x1; | |
344 | break; | |
345 | default: | |
346 | return -EINVAL; | |
347 | } | |
348 | ||
349 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
350 | case SND_SOC_DAIFMT_NB_NF: | |
351 | break; | |
352 | case SND_SOC_DAIFMT_IB_IF: | |
353 | iface |= 0xc; | |
354 | break; | |
355 | case SND_SOC_DAIFMT_IB_NF: | |
356 | iface |= 0x8; | |
357 | break; | |
358 | case SND_SOC_DAIFMT_NB_IF: | |
359 | iface |= 0x4; | |
360 | break; | |
361 | default: | |
362 | return -EINVAL; | |
363 | } | |
364 | ||
365 | snd_soc_update_bits(codec, WM8770_IFACECTRL, 0xf, iface); | |
366 | snd_soc_update_bits(codec, WM8770_MSTRCTRL, 0x100, master); | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static const int mclk_ratios[] = { | |
372 | 128, | |
373 | 192, | |
374 | 256, | |
375 | 384, | |
376 | 512, | |
377 | 768 | |
378 | }; | |
379 | ||
380 | static int wm8770_hw_params(struct snd_pcm_substream *substream, | |
381 | struct snd_pcm_hw_params *params, | |
382 | struct snd_soc_dai *dai) | |
383 | { | |
384 | struct snd_soc_codec *codec; | |
385 | struct wm8770_priv *wm8770; | |
386 | int i; | |
387 | int iface; | |
388 | int shift; | |
389 | int ratio; | |
390 | ||
391 | codec = dai->codec; | |
392 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
393 | ||
394 | iface = 0; | |
395 | switch (params_format(params)) { | |
396 | case SNDRV_PCM_FORMAT_S16_LE: | |
397 | break; | |
398 | case SNDRV_PCM_FORMAT_S20_3LE: | |
399 | iface |= 0x10; | |
400 | break; | |
401 | case SNDRV_PCM_FORMAT_S24_LE: | |
402 | iface |= 0x20; | |
403 | break; | |
404 | case SNDRV_PCM_FORMAT_S32_LE: | |
405 | iface |= 0x30; | |
406 | break; | |
407 | } | |
408 | ||
409 | switch (substream->stream) { | |
410 | case SNDRV_PCM_STREAM_PLAYBACK: | |
411 | i = 0; | |
412 | shift = 4; | |
413 | break; | |
414 | case SNDRV_PCM_STREAM_CAPTURE: | |
415 | i = 2; | |
416 | shift = 0; | |
417 | break; | |
418 | default: | |
419 | return -EINVAL; | |
420 | } | |
421 | ||
422 | /* Only need to set MCLK/LRCLK ratio if we're master */ | |
423 | if (snd_soc_read(codec, WM8770_MSTRCTRL) & 0x100) { | |
424 | for (; i < ARRAY_SIZE(mclk_ratios); ++i) { | |
425 | ratio = wm8770->sysclk / params_rate(params); | |
426 | if (ratio == mclk_ratios[i]) | |
427 | break; | |
428 | } | |
429 | ||
430 | if (i == ARRAY_SIZE(mclk_ratios)) { | |
431 | dev_err(codec->dev, | |
432 | "Unable to configure MCLK ratio %d/%d\n", | |
433 | wm8770->sysclk, params_rate(params)); | |
434 | return -EINVAL; | |
435 | } | |
436 | ||
437 | dev_dbg(codec->dev, "MCLK is %dfs\n", mclk_ratios[i]); | |
438 | ||
439 | snd_soc_update_bits(codec, WM8770_MSTRCTRL, 0x7 << shift, | |
440 | i << shift); | |
441 | } | |
442 | ||
443 | snd_soc_update_bits(codec, WM8770_IFACECTRL, 0x30, iface); | |
444 | ||
445 | return 0; | |
446 | } | |
447 | ||
448 | static int wm8770_mute(struct snd_soc_dai *dai, int mute) | |
449 | { | |
450 | struct snd_soc_codec *codec; | |
451 | ||
452 | codec = dai->codec; | |
453 | return snd_soc_update_bits(codec, WM8770_DACMUTE, 0x10, | |
454 | !!mute << 4); | |
455 | } | |
456 | ||
457 | static int wm8770_set_sysclk(struct snd_soc_dai *dai, | |
458 | int clk_id, unsigned int freq, int dir) | |
459 | { | |
460 | struct snd_soc_codec *codec; | |
461 | struct wm8770_priv *wm8770; | |
462 | ||
463 | codec = dai->codec; | |
464 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
465 | wm8770->sysclk = freq; | |
466 | return 0; | |
467 | } | |
468 | ||
469 | static void wm8770_sync_cache(struct snd_soc_codec *codec) | |
470 | { | |
471 | int i; | |
472 | u16 *cache; | |
473 | ||
474 | if (!codec->cache_sync) | |
475 | return; | |
476 | ||
477 | codec->cache_only = 0; | |
478 | cache = codec->reg_cache; | |
479 | for (i = 0; i < codec->driver->reg_cache_size; i++) { | |
480 | if (i == WM8770_RESET || cache[i] == wm8770_reg_defs[i]) | |
481 | continue; | |
482 | snd_soc_write(codec, i, cache[i]); | |
483 | } | |
484 | codec->cache_sync = 0; | |
485 | } | |
486 | ||
487 | static int wm8770_set_bias_level(struct snd_soc_codec *codec, | |
488 | enum snd_soc_bias_level level) | |
489 | { | |
490 | int ret; | |
491 | struct wm8770_priv *wm8770; | |
492 | ||
493 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
494 | ||
495 | switch (level) { | |
496 | case SND_SOC_BIAS_ON: | |
497 | break; | |
498 | case SND_SOC_BIAS_PREPARE: | |
499 | break; | |
500 | case SND_SOC_BIAS_STANDBY: | |
501 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { | |
502 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8770->supplies), | |
503 | wm8770->supplies); | |
504 | if (ret) { | |
505 | dev_err(codec->dev, | |
506 | "Failed to enable supplies: %d\n", | |
507 | ret); | |
508 | return ret; | |
509 | } | |
510 | wm8770_sync_cache(codec); | |
511 | /* global powerup */ | |
512 | snd_soc_write(codec, WM8770_PWDNCTRL, 0); | |
513 | } | |
514 | break; | |
515 | case SND_SOC_BIAS_OFF: | |
516 | /* global powerdown */ | |
517 | snd_soc_write(codec, WM8770_PWDNCTRL, 1); | |
518 | regulator_bulk_disable(ARRAY_SIZE(wm8770->supplies), | |
519 | wm8770->supplies); | |
520 | break; | |
521 | } | |
522 | ||
523 | codec->dapm.bias_level = level; | |
524 | return 0; | |
525 | } | |
526 | ||
527 | #define WM8770_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ | |
528 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
529 | ||
85e7652d | 530 | static const struct snd_soc_dai_ops wm8770_dai_ops = { |
c046fd4d DP |
531 | .digital_mute = wm8770_mute, |
532 | .hw_params = wm8770_hw_params, | |
533 | .set_fmt = wm8770_set_fmt, | |
534 | .set_sysclk = wm8770_set_sysclk, | |
535 | }; | |
536 | ||
537 | static struct snd_soc_dai_driver wm8770_dai = { | |
538 | .name = "wm8770-hifi", | |
539 | .playback = { | |
540 | .stream_name = "Playback", | |
541 | .channels_min = 2, | |
542 | .channels_max = 2, | |
543 | .rates = SNDRV_PCM_RATE_8000_192000, | |
544 | .formats = WM8770_FORMATS | |
545 | }, | |
546 | .capture = { | |
547 | .stream_name = "Capture", | |
548 | .channels_min = 2, | |
549 | .channels_max = 2, | |
550 | .rates = SNDRV_PCM_RATE_8000_96000, | |
551 | .formats = WM8770_FORMATS | |
552 | }, | |
553 | .ops = &wm8770_dai_ops, | |
554 | .symmetric_rates = 1 | |
555 | }; | |
556 | ||
557 | #ifdef CONFIG_PM | |
84b315ee | 558 | static int wm8770_suspend(struct snd_soc_codec *codec) |
c046fd4d DP |
559 | { |
560 | wm8770_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
561 | return 0; | |
562 | } | |
563 | ||
564 | static int wm8770_resume(struct snd_soc_codec *codec) | |
565 | { | |
566 | wm8770_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
567 | return 0; | |
568 | } | |
569 | #else | |
570 | #define wm8770_suspend NULL | |
571 | #define wm8770_resume NULL | |
572 | #endif | |
573 | ||
574 | static int wm8770_probe(struct snd_soc_codec *codec) | |
575 | { | |
576 | struct wm8770_priv *wm8770; | |
577 | int ret; | |
578 | int i; | |
579 | ||
580 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
581 | wm8770->codec = codec; | |
582 | ||
c046fd4d DP |
583 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8770->control_type); |
584 | if (ret < 0) { | |
585 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
586 | return ret; | |
587 | } | |
588 | ||
589 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); i++) | |
590 | wm8770->supplies[i].supply = wm8770_supply_names[i]; | |
591 | ||
592 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8770->supplies), | |
593 | wm8770->supplies); | |
594 | if (ret) { | |
595 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
596 | return ret; | |
597 | } | |
598 | ||
599 | wm8770->disable_nb[0].notifier_call = wm8770_regulator_event_0; | |
600 | wm8770->disable_nb[1].notifier_call = wm8770_regulator_event_1; | |
601 | wm8770->disable_nb[2].notifier_call = wm8770_regulator_event_2; | |
602 | ||
603 | /* This should really be moved into the regulator core */ | |
604 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); i++) { | |
605 | ret = regulator_register_notifier(wm8770->supplies[i].consumer, | |
606 | &wm8770->disable_nb[i]); | |
607 | if (ret) { | |
608 | dev_err(codec->dev, | |
609 | "Failed to register regulator notifier: %d\n", | |
610 | ret); | |
611 | } | |
612 | } | |
613 | ||
614 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8770->supplies), | |
615 | wm8770->supplies); | |
616 | if (ret) { | |
617 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
618 | goto err_reg_get; | |
619 | } | |
620 | ||
621 | ret = wm8770_reset(codec); | |
622 | if (ret < 0) { | |
623 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); | |
624 | goto err_reg_enable; | |
625 | } | |
626 | ||
627 | wm8770_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
628 | ||
629 | /* latch the volume update bits */ | |
630 | snd_soc_update_bits(codec, WM8770_MSDIGVOL, 0x100, 0x100); | |
631 | snd_soc_update_bits(codec, WM8770_MSALGVOL, 0x100, 0x100); | |
632 | snd_soc_update_bits(codec, WM8770_VOUT1RVOL, 0x100, 0x100); | |
633 | snd_soc_update_bits(codec, WM8770_VOUT2RVOL, 0x100, 0x100); | |
634 | snd_soc_update_bits(codec, WM8770_VOUT3RVOL, 0x100, 0x100); | |
635 | snd_soc_update_bits(codec, WM8770_VOUT4RVOL, 0x100, 0x100); | |
636 | snd_soc_update_bits(codec, WM8770_DAC1RVOL, 0x100, 0x100); | |
637 | snd_soc_update_bits(codec, WM8770_DAC2RVOL, 0x100, 0x100); | |
638 | snd_soc_update_bits(codec, WM8770_DAC3RVOL, 0x100, 0x100); | |
639 | snd_soc_update_bits(codec, WM8770_DAC4RVOL, 0x100, 0x100); | |
640 | ||
641 | /* mute all DACs */ | |
642 | snd_soc_update_bits(codec, WM8770_DACMUTE, 0x10, 0x10); | |
643 | ||
022658be | 644 | snd_soc_add_codec_controls(codec, wm8770_snd_controls, |
c046fd4d DP |
645 | ARRAY_SIZE(wm8770_snd_controls)); |
646 | snd_soc_dapm_new_controls(&codec->dapm, wm8770_dapm_widgets, | |
647 | ARRAY_SIZE(wm8770_dapm_widgets)); | |
648 | snd_soc_dapm_add_routes(&codec->dapm, wm8770_intercon, | |
649 | ARRAY_SIZE(wm8770_intercon)); | |
650 | return 0; | |
651 | ||
652 | err_reg_enable: | |
653 | regulator_bulk_disable(ARRAY_SIZE(wm8770->supplies), wm8770->supplies); | |
654 | err_reg_get: | |
655 | regulator_bulk_free(ARRAY_SIZE(wm8770->supplies), wm8770->supplies); | |
656 | return ret; | |
657 | } | |
658 | ||
659 | static int wm8770_remove(struct snd_soc_codec *codec) | |
660 | { | |
661 | struct wm8770_priv *wm8770; | |
662 | int i; | |
663 | ||
664 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
665 | wm8770_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
666 | ||
667 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); ++i) | |
668 | regulator_unregister_notifier(wm8770->supplies[i].consumer, | |
669 | &wm8770->disable_nb[i]); | |
670 | regulator_bulk_free(ARRAY_SIZE(wm8770->supplies), wm8770->supplies); | |
671 | return 0; | |
672 | } | |
673 | ||
674 | static struct snd_soc_codec_driver soc_codec_dev_wm8770 = { | |
675 | .probe = wm8770_probe, | |
676 | .remove = wm8770_remove, | |
677 | .suspend = wm8770_suspend, | |
678 | .resume = wm8770_resume, | |
679 | .set_bias_level = wm8770_set_bias_level, | |
eb3032f8 | 680 | .idle_bias_off = true, |
c046fd4d DP |
681 | .reg_cache_size = ARRAY_SIZE(wm8770_reg_defs), |
682 | .reg_word_size = sizeof (u16), | |
683 | .reg_cache_default = wm8770_reg_defs | |
684 | }; | |
685 | ||
13c7d08f MB |
686 | static const struct of_device_id wm8770_of_match[] = { |
687 | { .compatible = "wlf,wm8770", }, | |
688 | { } | |
689 | }; | |
690 | MODULE_DEVICE_TABLE(of, wm8770_of_match); | |
691 | ||
c046fd4d DP |
692 | static int __devinit wm8770_spi_probe(struct spi_device *spi) |
693 | { | |
694 | struct wm8770_priv *wm8770; | |
695 | int ret; | |
696 | ||
3025ae45 MB |
697 | wm8770 = devm_kzalloc(&spi->dev, sizeof(struct wm8770_priv), |
698 | GFP_KERNEL); | |
c046fd4d DP |
699 | if (!wm8770) |
700 | return -ENOMEM; | |
701 | ||
702 | wm8770->control_type = SND_SOC_SPI; | |
703 | spi_set_drvdata(spi, wm8770); | |
704 | ||
705 | ret = snd_soc_register_codec(&spi->dev, | |
706 | &soc_codec_dev_wm8770, &wm8770_dai, 1); | |
3025ae45 | 707 | |
c046fd4d DP |
708 | return ret; |
709 | } | |
710 | ||
711 | static int __devexit wm8770_spi_remove(struct spi_device *spi) | |
712 | { | |
713 | snd_soc_unregister_codec(&spi->dev); | |
c046fd4d DP |
714 | return 0; |
715 | } | |
716 | ||
717 | static struct spi_driver wm8770_spi_driver = { | |
718 | .driver = { | |
719 | .name = "wm8770", | |
720 | .owner = THIS_MODULE, | |
13c7d08f | 721 | .of_match_table = wm8770_of_match, |
c046fd4d DP |
722 | }, |
723 | .probe = wm8770_spi_probe, | |
724 | .remove = __devexit_p(wm8770_spi_remove) | |
725 | }; | |
c046fd4d DP |
726 | |
727 | static int __init wm8770_modinit(void) | |
728 | { | |
729 | int ret = 0; | |
730 | ||
c046fd4d DP |
731 | ret = spi_register_driver(&wm8770_spi_driver); |
732 | if (ret) { | |
733 | printk(KERN_ERR "Failed to register wm8770 SPI driver: %d\n", | |
734 | ret); | |
735 | } | |
c046fd4d DP |
736 | return ret; |
737 | } | |
738 | module_init(wm8770_modinit); | |
739 | ||
740 | static void __exit wm8770_exit(void) | |
741 | { | |
c046fd4d | 742 | spi_unregister_driver(&wm8770_spi_driver); |
c046fd4d DP |
743 | } |
744 | module_exit(wm8770_exit); | |
745 | ||
746 | MODULE_DESCRIPTION("ASoC WM8770 driver"); | |
747 | MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>"); | |
748 | MODULE_LICENSE("GPL"); |