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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 DP |
18 | #include <linux/pm.h> |
19 | #include <linux/platform_device.h> | |
20 | #include <linux/spi/spi.h> | |
21 | #include <linux/regulator/consumer.h> | |
22 | #include <linux/slab.h> | |
23 | #include <sound/core.h> | |
24 | #include <sound/pcm.h> | |
25 | #include <sound/pcm_params.h> | |
26 | #include <sound/soc.h> | |
c046fd4d DP |
27 | #include <sound/initval.h> |
28 | #include <sound/tlv.h> | |
29 | ||
30 | #include "wm8770.h" | |
31 | ||
32 | #define WM8770_NUM_SUPPLIES 3 | |
33 | static const char *wm8770_supply_names[WM8770_NUM_SUPPLIES] = { | |
34 | "AVDD1", | |
35 | "AVDD2", | |
36 | "DVDD" | |
37 | }; | |
38 | ||
39 | static const u16 wm8770_reg_defs[WM8770_CACHEREGNUM] = { | |
40 | 0x7f, 0x7f, 0x7f, 0x7f, | |
41 | 0x7f, 0x7f, 0x7f, 0x7f, | |
42 | 0x7f, 0xff, 0xff, 0xff, | |
43 | 0xff, 0xff, 0xff, 0xff, | |
44 | 0xff, 0xff, 0, 0x90, 0, | |
45 | 0, 0x22, 0x22, 0x3e, | |
46 | 0xc, 0xc, 0x100, 0x189, | |
47 | 0x189, 0x8770 | |
48 | }; | |
49 | ||
50 | struct wm8770_priv { | |
51 | enum snd_soc_control_type control_type; | |
52 | struct regulator_bulk_data supplies[WM8770_NUM_SUPPLIES]; | |
53 | struct notifier_block disable_nb[WM8770_NUM_SUPPLIES]; | |
54 | struct snd_soc_codec *codec; | |
55 | int sysclk; | |
56 | }; | |
57 | ||
58 | static int vout12supply_event(struct snd_soc_dapm_widget *w, | |
59 | struct snd_kcontrol *kcontrol, int event); | |
60 | static int vout34supply_event(struct snd_soc_dapm_widget *w, | |
61 | struct snd_kcontrol *kcontrol, int event); | |
62 | ||
63 | /* | |
64 | * We can't use the same notifier block for more than one supply and | |
65 | * there's no way I can see to get from a callback to the caller | |
66 | * except container_of(). | |
67 | */ | |
68 | #define WM8770_REGULATOR_EVENT(n) \ | |
69 | static int wm8770_regulator_event_##n(struct notifier_block *nb, \ | |
70 | unsigned long event, void *data) \ | |
71 | { \ | |
72 | struct wm8770_priv *wm8770 = container_of(nb, struct wm8770_priv, \ | |
73 | disable_nb[n]); \ | |
74 | if (event & REGULATOR_EVENT_DISABLE) { \ | |
75 | wm8770->codec->cache_sync = 1; \ | |
76 | } \ | |
77 | return 0; \ | |
78 | } | |
79 | ||
80 | WM8770_REGULATOR_EVENT(0) | |
81 | WM8770_REGULATOR_EVENT(1) | |
82 | WM8770_REGULATOR_EVENT(2) | |
83 | ||
84 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 100, 0); | |
85 | static const DECLARE_TLV_DB_SCALE(dac_dig_tlv, -12750, 50, 1); | |
86 | static const DECLARE_TLV_DB_SCALE(dac_alg_tlv, -12700, 100, 1); | |
87 | ||
88 | static const char *dac_phase_text[][2] = { | |
89 | { "DAC1 Normal", "DAC1 Inverted" }, | |
90 | { "DAC2 Normal", "DAC2 Inverted" }, | |
91 | { "DAC3 Normal", "DAC3 Inverted" }, | |
92 | { "DAC4 Normal", "DAC4 Inverted" }, | |
93 | }; | |
94 | ||
95 | static const struct soc_enum dac_phase[] = { | |
96 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 0, 1, 2, dac_phase_text[0]), | |
97 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 2, 3, 2, dac_phase_text[1]), | |
98 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 4, 5, 2, dac_phase_text[2]), | |
99 | SOC_ENUM_DOUBLE(WM8770_DACPHASE, 6, 7, 2, dac_phase_text[3]), | |
100 | }; | |
101 | ||
102 | static const struct snd_kcontrol_new wm8770_snd_controls[] = { | |
103 | /* global DAC playback controls */ | |
104 | SOC_SINGLE_TLV("DAC Playback Volume", WM8770_MSDIGVOL, 0, 255, 0, | |
105 | dac_dig_tlv), | |
106 | SOC_SINGLE("DAC Playback Switch", WM8770_DACMUTE, 4, 1, 1), | |
107 | SOC_SINGLE("DAC Playback ZC Switch", WM8770_DACCTRL1, 0, 1, 0), | |
108 | ||
109 | /* global VOUT playback controls */ | |
110 | SOC_SINGLE_TLV("VOUT Playback Volume", WM8770_MSALGVOL, 0, 127, 0, | |
111 | dac_alg_tlv), | |
112 | SOC_SINGLE("VOUT Playback ZC Switch", WM8770_MSALGVOL, 7, 1, 0), | |
113 | ||
114 | /* VOUT1/2/3/4 specific controls */ | |
115 | SOC_DOUBLE_R_TLV("VOUT1 Playback Volume", WM8770_VOUT1LVOL, | |
116 | WM8770_VOUT1RVOL, 0, 127, 0, dac_alg_tlv), | |
117 | SOC_DOUBLE_R("VOUT1 Playback ZC Switch", WM8770_VOUT1LVOL, | |
118 | WM8770_VOUT1RVOL, 7, 1, 0), | |
119 | SOC_DOUBLE_R_TLV("VOUT2 Playback Volume", WM8770_VOUT2LVOL, | |
120 | WM8770_VOUT2RVOL, 0, 127, 0, dac_alg_tlv), | |
121 | SOC_DOUBLE_R("VOUT2 Playback ZC Switch", WM8770_VOUT2LVOL, | |
122 | WM8770_VOUT2RVOL, 7, 1, 0), | |
123 | SOC_DOUBLE_R_TLV("VOUT3 Playback Volume", WM8770_VOUT3LVOL, | |
124 | WM8770_VOUT3RVOL, 0, 127, 0, dac_alg_tlv), | |
125 | SOC_DOUBLE_R("VOUT3 Playback ZC Switch", WM8770_VOUT3LVOL, | |
126 | WM8770_VOUT3RVOL, 7, 1, 0), | |
127 | SOC_DOUBLE_R_TLV("VOUT4 Playback Volume", WM8770_VOUT4LVOL, | |
128 | WM8770_VOUT4RVOL, 0, 127, 0, dac_alg_tlv), | |
129 | SOC_DOUBLE_R("VOUT4 Playback ZC Switch", WM8770_VOUT4LVOL, | |
130 | WM8770_VOUT4RVOL, 7, 1, 0), | |
131 | ||
132 | /* DAC1/2/3/4 specific controls */ | |
133 | SOC_DOUBLE_R_TLV("DAC1 Playback Volume", WM8770_DAC1LVOL, | |
134 | WM8770_DAC1RVOL, 0, 255, 0, dac_dig_tlv), | |
135 | SOC_SINGLE("DAC1 Deemphasis Switch", WM8770_DACCTRL2, 0, 1, 0), | |
136 | SOC_ENUM("DAC1 Phase", dac_phase[0]), | |
137 | SOC_DOUBLE_R_TLV("DAC2 Playback Volume", WM8770_DAC2LVOL, | |
138 | WM8770_DAC2RVOL, 0, 255, 0, dac_dig_tlv), | |
139 | SOC_SINGLE("DAC2 Deemphasis Switch", WM8770_DACCTRL2, 1, 1, 0), | |
140 | SOC_ENUM("DAC2 Phase", dac_phase[1]), | |
141 | SOC_DOUBLE_R_TLV("DAC3 Playback Volume", WM8770_DAC3LVOL, | |
142 | WM8770_DAC3RVOL, 0, 255, 0, dac_dig_tlv), | |
143 | SOC_SINGLE("DAC3 Deemphasis Switch", WM8770_DACCTRL2, 2, 1, 0), | |
144 | SOC_ENUM("DAC3 Phase", dac_phase[2]), | |
145 | SOC_DOUBLE_R_TLV("DAC4 Playback Volume", WM8770_DAC4LVOL, | |
146 | WM8770_DAC4RVOL, 0, 255, 0, dac_dig_tlv), | |
147 | SOC_SINGLE("DAC4 Deemphasis Switch", WM8770_DACCTRL2, 3, 1, 0), | |
148 | SOC_ENUM("DAC4 Phase", dac_phase[3]), | |
149 | ||
150 | /* ADC specific controls */ | |
151 | SOC_DOUBLE_R_TLV("Capture Volume", WM8770_ADCLCTRL, WM8770_ADCRCTRL, | |
152 | 0, 31, 0, adc_tlv), | |
153 | SOC_DOUBLE_R("Capture Switch", WM8770_ADCLCTRL, WM8770_ADCRCTRL, | |
154 | 5, 1, 1), | |
155 | ||
156 | /* other controls */ | |
157 | SOC_SINGLE("ADC 128x Oversampling Switch", WM8770_MSTRCTRL, 3, 1, 0), | |
158 | SOC_SINGLE("ADC Highpass Filter Switch", WM8770_IFACECTRL, 8, 1, 1) | |
159 | }; | |
160 | ||
161 | static const char *ain_text[] = { | |
162 | "AIN1", "AIN2", "AIN3", "AIN4", | |
163 | "AIN5", "AIN6", "AIN7", "AIN8" | |
164 | }; | |
165 | ||
166 | static const struct soc_enum ain_enum = | |
167 | SOC_ENUM_DOUBLE(WM8770_ADCMUX, 0, 4, 8, ain_text); | |
168 | ||
169 | static const struct snd_kcontrol_new ain_mux = | |
170 | SOC_DAPM_ENUM("Capture Mux", ain_enum); | |
171 | ||
172 | static const struct snd_kcontrol_new vout1_mix_controls[] = { | |
173 | SOC_DAPM_SINGLE("DAC1 Switch", WM8770_OUTMUX1, 0, 1, 0), | |
174 | SOC_DAPM_SINGLE("AUX1 Switch", WM8770_OUTMUX1, 1, 1, 0), | |
175 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX1, 2, 1, 0) | |
176 | }; | |
177 | ||
178 | static const struct snd_kcontrol_new vout2_mix_controls[] = { | |
179 | SOC_DAPM_SINGLE("DAC2 Switch", WM8770_OUTMUX1, 3, 1, 0), | |
180 | SOC_DAPM_SINGLE("AUX2 Switch", WM8770_OUTMUX1, 4, 1, 0), | |
181 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX1, 5, 1, 0) | |
182 | }; | |
183 | ||
184 | static const struct snd_kcontrol_new vout3_mix_controls[] = { | |
185 | SOC_DAPM_SINGLE("DAC3 Switch", WM8770_OUTMUX2, 0, 1, 0), | |
186 | SOC_DAPM_SINGLE("AUX3 Switch", WM8770_OUTMUX2, 1, 1, 0), | |
187 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX2, 2, 1, 0) | |
188 | }; | |
189 | ||
190 | static const struct snd_kcontrol_new vout4_mix_controls[] = { | |
191 | SOC_DAPM_SINGLE("DAC4 Switch", WM8770_OUTMUX2, 3, 1, 0), | |
192 | SOC_DAPM_SINGLE("Bypass Switch", WM8770_OUTMUX2, 4, 1, 0) | |
193 | }; | |
194 | ||
195 | static const struct snd_soc_dapm_widget wm8770_dapm_widgets[] = { | |
196 | SND_SOC_DAPM_INPUT("AUX1"), | |
197 | SND_SOC_DAPM_INPUT("AUX2"), | |
198 | SND_SOC_DAPM_INPUT("AUX3"), | |
199 | ||
200 | SND_SOC_DAPM_INPUT("AIN1"), | |
201 | SND_SOC_DAPM_INPUT("AIN2"), | |
202 | SND_SOC_DAPM_INPUT("AIN3"), | |
203 | SND_SOC_DAPM_INPUT("AIN4"), | |
204 | SND_SOC_DAPM_INPUT("AIN5"), | |
205 | SND_SOC_DAPM_INPUT("AIN6"), | |
206 | SND_SOC_DAPM_INPUT("AIN7"), | |
207 | SND_SOC_DAPM_INPUT("AIN8"), | |
208 | ||
209 | SND_SOC_DAPM_MUX("Capture Mux", WM8770_ADCMUX, 8, 1, &ain_mux), | |
210 | ||
211 | SND_SOC_DAPM_ADC("ADC", "Capture", WM8770_PWDNCTRL, 1, 1), | |
212 | ||
213 | SND_SOC_DAPM_DAC("DAC1", "Playback", WM8770_PWDNCTRL, 2, 1), | |
214 | SND_SOC_DAPM_DAC("DAC2", "Playback", WM8770_PWDNCTRL, 3, 1), | |
215 | SND_SOC_DAPM_DAC("DAC3", "Playback", WM8770_PWDNCTRL, 4, 1), | |
216 | SND_SOC_DAPM_DAC("DAC4", "Playback", WM8770_PWDNCTRL, 5, 1), | |
217 | ||
218 | SND_SOC_DAPM_SUPPLY("VOUT12 Supply", SND_SOC_NOPM, 0, 0, | |
219 | vout12supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
220 | SND_SOC_DAPM_SUPPLY("VOUT34 Supply", SND_SOC_NOPM, 0, 0, | |
221 | vout34supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), | |
222 | ||
223 | SND_SOC_DAPM_MIXER("VOUT1 Mixer", SND_SOC_NOPM, 0, 0, | |
224 | vout1_mix_controls, ARRAY_SIZE(vout1_mix_controls)), | |
225 | SND_SOC_DAPM_MIXER("VOUT2 Mixer", SND_SOC_NOPM, 0, 0, | |
226 | vout2_mix_controls, ARRAY_SIZE(vout2_mix_controls)), | |
227 | SND_SOC_DAPM_MIXER("VOUT3 Mixer", SND_SOC_NOPM, 0, 0, | |
228 | vout3_mix_controls, ARRAY_SIZE(vout3_mix_controls)), | |
229 | SND_SOC_DAPM_MIXER("VOUT4 Mixer", SND_SOC_NOPM, 0, 0, | |
230 | vout4_mix_controls, ARRAY_SIZE(vout4_mix_controls)), | |
231 | ||
232 | SND_SOC_DAPM_OUTPUT("VOUT1"), | |
233 | SND_SOC_DAPM_OUTPUT("VOUT2"), | |
234 | SND_SOC_DAPM_OUTPUT("VOUT3"), | |
235 | SND_SOC_DAPM_OUTPUT("VOUT4") | |
236 | }; | |
237 | ||
238 | static const struct snd_soc_dapm_route wm8770_intercon[] = { | |
239 | { "Capture Mux", "AIN1", "AIN1" }, | |
240 | { "Capture Mux", "AIN2", "AIN2" }, | |
241 | { "Capture Mux", "AIN3", "AIN3" }, | |
242 | { "Capture Mux", "AIN4", "AIN4" }, | |
243 | { "Capture Mux", "AIN5", "AIN5" }, | |
244 | { "Capture Mux", "AIN6", "AIN6" }, | |
245 | { "Capture Mux", "AIN7", "AIN7" }, | |
246 | { "Capture Mux", "AIN8", "AIN8" }, | |
247 | ||
248 | { "ADC", NULL, "Capture Mux" }, | |
249 | ||
250 | { "VOUT1 Mixer", NULL, "VOUT12 Supply" }, | |
251 | { "VOUT1 Mixer", "DAC1 Switch", "DAC1" }, | |
252 | { "VOUT1 Mixer", "AUX1 Switch", "AUX1" }, | |
253 | { "VOUT1 Mixer", "Bypass Switch", "Capture Mux" }, | |
254 | ||
255 | { "VOUT2 Mixer", NULL, "VOUT12 Supply" }, | |
256 | { "VOUT2 Mixer", "DAC2 Switch", "DAC2" }, | |
257 | { "VOUT2 Mixer", "AUX2 Switch", "AUX2" }, | |
258 | { "VOUT2 Mixer", "Bypass Switch", "Capture Mux" }, | |
259 | ||
260 | { "VOUT3 Mixer", NULL, "VOUT34 Supply" }, | |
261 | { "VOUT3 Mixer", "DAC3 Switch", "DAC3" }, | |
262 | { "VOUT3 Mixer", "AUX3 Switch", "AUX3" }, | |
263 | { "VOUT3 Mixer", "Bypass Switch", "Capture Mux" }, | |
264 | ||
265 | { "VOUT4 Mixer", NULL, "VOUT34 Supply" }, | |
266 | { "VOUT4 Mixer", "DAC4 Switch", "DAC4" }, | |
267 | { "VOUT4 Mixer", "Bypass Switch", "Capture Mux" }, | |
268 | ||
269 | { "VOUT1", NULL, "VOUT1 Mixer" }, | |
270 | { "VOUT2", NULL, "VOUT2 Mixer" }, | |
271 | { "VOUT3", NULL, "VOUT3 Mixer" }, | |
272 | { "VOUT4", NULL, "VOUT4 Mixer" } | |
273 | }; | |
274 | ||
275 | static int vout12supply_event(struct snd_soc_dapm_widget *w, | |
276 | struct snd_kcontrol *kcontrol, int event) | |
277 | { | |
278 | struct snd_soc_codec *codec; | |
279 | ||
280 | codec = w->codec; | |
281 | ||
282 | switch (event) { | |
283 | case SND_SOC_DAPM_PRE_PMU: | |
284 | snd_soc_update_bits(codec, WM8770_OUTMUX1, 0x180, 0); | |
285 | break; | |
286 | case SND_SOC_DAPM_POST_PMD: | |
287 | snd_soc_update_bits(codec, WM8770_OUTMUX1, 0x180, 0x180); | |
288 | break; | |
289 | } | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | static int vout34supply_event(struct snd_soc_dapm_widget *w, | |
295 | struct snd_kcontrol *kcontrol, int event) | |
296 | { | |
297 | struct snd_soc_codec *codec; | |
298 | ||
299 | codec = w->codec; | |
300 | ||
301 | switch (event) { | |
302 | case SND_SOC_DAPM_PRE_PMU: | |
303 | snd_soc_update_bits(codec, WM8770_OUTMUX2, 0x180, 0); | |
304 | break; | |
305 | case SND_SOC_DAPM_POST_PMD: | |
306 | snd_soc_update_bits(codec, WM8770_OUTMUX2, 0x180, 0x180); | |
307 | break; | |
308 | } | |
309 | ||
310 | return 0; | |
311 | } | |
312 | ||
313 | static int wm8770_reset(struct snd_soc_codec *codec) | |
314 | { | |
315 | return snd_soc_write(codec, WM8770_RESET, 0); | |
316 | } | |
317 | ||
318 | static int wm8770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
319 | { | |
320 | struct snd_soc_codec *codec; | |
321 | int iface, master; | |
322 | ||
323 | codec = dai->codec; | |
324 | ||
325 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
326 | case SND_SOC_DAIFMT_CBM_CFM: | |
327 | master = 0x100; | |
328 | break; | |
329 | case SND_SOC_DAIFMT_CBS_CFS: | |
330 | master = 0; | |
331 | break; | |
332 | default: | |
333 | return -EINVAL; | |
334 | } | |
335 | ||
336 | iface = 0; | |
337 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
338 | case SND_SOC_DAIFMT_I2S: | |
339 | iface |= 0x2; | |
340 | break; | |
341 | case SND_SOC_DAIFMT_RIGHT_J: | |
342 | break; | |
343 | case SND_SOC_DAIFMT_LEFT_J: | |
344 | iface |= 0x1; | |
345 | break; | |
346 | default: | |
347 | return -EINVAL; | |
348 | } | |
349 | ||
350 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
351 | case SND_SOC_DAIFMT_NB_NF: | |
352 | break; | |
353 | case SND_SOC_DAIFMT_IB_IF: | |
354 | iface |= 0xc; | |
355 | break; | |
356 | case SND_SOC_DAIFMT_IB_NF: | |
357 | iface |= 0x8; | |
358 | break; | |
359 | case SND_SOC_DAIFMT_NB_IF: | |
360 | iface |= 0x4; | |
361 | break; | |
362 | default: | |
363 | return -EINVAL; | |
364 | } | |
365 | ||
366 | snd_soc_update_bits(codec, WM8770_IFACECTRL, 0xf, iface); | |
367 | snd_soc_update_bits(codec, WM8770_MSTRCTRL, 0x100, master); | |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
372 | static const int mclk_ratios[] = { | |
373 | 128, | |
374 | 192, | |
375 | 256, | |
376 | 384, | |
377 | 512, | |
378 | 768 | |
379 | }; | |
380 | ||
381 | static int wm8770_hw_params(struct snd_pcm_substream *substream, | |
382 | struct snd_pcm_hw_params *params, | |
383 | struct snd_soc_dai *dai) | |
384 | { | |
385 | struct snd_soc_codec *codec; | |
386 | struct wm8770_priv *wm8770; | |
387 | int i; | |
388 | int iface; | |
389 | int shift; | |
390 | int ratio; | |
391 | ||
392 | codec = dai->codec; | |
393 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
394 | ||
395 | iface = 0; | |
396 | switch (params_format(params)) { | |
397 | case SNDRV_PCM_FORMAT_S16_LE: | |
398 | break; | |
399 | case SNDRV_PCM_FORMAT_S20_3LE: | |
400 | iface |= 0x10; | |
401 | break; | |
402 | case SNDRV_PCM_FORMAT_S24_LE: | |
403 | iface |= 0x20; | |
404 | break; | |
405 | case SNDRV_PCM_FORMAT_S32_LE: | |
406 | iface |= 0x30; | |
407 | break; | |
408 | } | |
409 | ||
410 | switch (substream->stream) { | |
411 | case SNDRV_PCM_STREAM_PLAYBACK: | |
412 | i = 0; | |
413 | shift = 4; | |
414 | break; | |
415 | case SNDRV_PCM_STREAM_CAPTURE: | |
416 | i = 2; | |
417 | shift = 0; | |
418 | break; | |
419 | default: | |
420 | return -EINVAL; | |
421 | } | |
422 | ||
423 | /* Only need to set MCLK/LRCLK ratio if we're master */ | |
424 | if (snd_soc_read(codec, WM8770_MSTRCTRL) & 0x100) { | |
425 | for (; i < ARRAY_SIZE(mclk_ratios); ++i) { | |
426 | ratio = wm8770->sysclk / params_rate(params); | |
427 | if (ratio == mclk_ratios[i]) | |
428 | break; | |
429 | } | |
430 | ||
431 | if (i == ARRAY_SIZE(mclk_ratios)) { | |
432 | dev_err(codec->dev, | |
433 | "Unable to configure MCLK ratio %d/%d\n", | |
434 | wm8770->sysclk, params_rate(params)); | |
435 | return -EINVAL; | |
436 | } | |
437 | ||
438 | dev_dbg(codec->dev, "MCLK is %dfs\n", mclk_ratios[i]); | |
439 | ||
440 | snd_soc_update_bits(codec, WM8770_MSTRCTRL, 0x7 << shift, | |
441 | i << shift); | |
442 | } | |
443 | ||
444 | snd_soc_update_bits(codec, WM8770_IFACECTRL, 0x30, iface); | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
449 | static int wm8770_mute(struct snd_soc_dai *dai, int mute) | |
450 | { | |
451 | struct snd_soc_codec *codec; | |
452 | ||
453 | codec = dai->codec; | |
454 | return snd_soc_update_bits(codec, WM8770_DACMUTE, 0x10, | |
455 | !!mute << 4); | |
456 | } | |
457 | ||
458 | static int wm8770_set_sysclk(struct snd_soc_dai *dai, | |
459 | int clk_id, unsigned int freq, int dir) | |
460 | { | |
461 | struct snd_soc_codec *codec; | |
462 | struct wm8770_priv *wm8770; | |
463 | ||
464 | codec = dai->codec; | |
465 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
466 | wm8770->sysclk = freq; | |
467 | return 0; | |
468 | } | |
469 | ||
470 | static void wm8770_sync_cache(struct snd_soc_codec *codec) | |
471 | { | |
472 | int i; | |
473 | u16 *cache; | |
474 | ||
475 | if (!codec->cache_sync) | |
476 | return; | |
477 | ||
478 | codec->cache_only = 0; | |
479 | cache = codec->reg_cache; | |
480 | for (i = 0; i < codec->driver->reg_cache_size; i++) { | |
481 | if (i == WM8770_RESET || cache[i] == wm8770_reg_defs[i]) | |
482 | continue; | |
483 | snd_soc_write(codec, i, cache[i]); | |
484 | } | |
485 | codec->cache_sync = 0; | |
486 | } | |
487 | ||
488 | static int wm8770_set_bias_level(struct snd_soc_codec *codec, | |
489 | enum snd_soc_bias_level level) | |
490 | { | |
491 | int ret; | |
492 | struct wm8770_priv *wm8770; | |
493 | ||
494 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
495 | ||
496 | switch (level) { | |
497 | case SND_SOC_BIAS_ON: | |
498 | break; | |
499 | case SND_SOC_BIAS_PREPARE: | |
500 | break; | |
501 | case SND_SOC_BIAS_STANDBY: | |
502 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { | |
503 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8770->supplies), | |
504 | wm8770->supplies); | |
505 | if (ret) { | |
506 | dev_err(codec->dev, | |
507 | "Failed to enable supplies: %d\n", | |
508 | ret); | |
509 | return ret; | |
510 | } | |
511 | wm8770_sync_cache(codec); | |
512 | /* global powerup */ | |
513 | snd_soc_write(codec, WM8770_PWDNCTRL, 0); | |
514 | } | |
515 | break; | |
516 | case SND_SOC_BIAS_OFF: | |
517 | /* global powerdown */ | |
518 | snd_soc_write(codec, WM8770_PWDNCTRL, 1); | |
519 | regulator_bulk_disable(ARRAY_SIZE(wm8770->supplies), | |
520 | wm8770->supplies); | |
521 | break; | |
522 | } | |
523 | ||
524 | codec->dapm.bias_level = level; | |
525 | return 0; | |
526 | } | |
527 | ||
528 | #define WM8770_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ | |
529 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) | |
530 | ||
531 | static struct snd_soc_dai_ops wm8770_dai_ops = { | |
532 | .digital_mute = wm8770_mute, | |
533 | .hw_params = wm8770_hw_params, | |
534 | .set_fmt = wm8770_set_fmt, | |
535 | .set_sysclk = wm8770_set_sysclk, | |
536 | }; | |
537 | ||
538 | static struct snd_soc_dai_driver wm8770_dai = { | |
539 | .name = "wm8770-hifi", | |
540 | .playback = { | |
541 | .stream_name = "Playback", | |
542 | .channels_min = 2, | |
543 | .channels_max = 2, | |
544 | .rates = SNDRV_PCM_RATE_8000_192000, | |
545 | .formats = WM8770_FORMATS | |
546 | }, | |
547 | .capture = { | |
548 | .stream_name = "Capture", | |
549 | .channels_min = 2, | |
550 | .channels_max = 2, | |
551 | .rates = SNDRV_PCM_RATE_8000_96000, | |
552 | .formats = WM8770_FORMATS | |
553 | }, | |
554 | .ops = &wm8770_dai_ops, | |
555 | .symmetric_rates = 1 | |
556 | }; | |
557 | ||
558 | #ifdef CONFIG_PM | |
559 | static int wm8770_suspend(struct snd_soc_codec *codec, pm_message_t state) | |
560 | { | |
561 | wm8770_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
562 | return 0; | |
563 | } | |
564 | ||
565 | static int wm8770_resume(struct snd_soc_codec *codec) | |
566 | { | |
567 | wm8770_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
568 | return 0; | |
569 | } | |
570 | #else | |
571 | #define wm8770_suspend NULL | |
572 | #define wm8770_resume NULL | |
573 | #endif | |
574 | ||
575 | static int wm8770_probe(struct snd_soc_codec *codec) | |
576 | { | |
577 | struct wm8770_priv *wm8770; | |
578 | int ret; | |
579 | int i; | |
580 | ||
581 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
582 | wm8770->codec = codec; | |
583 | ||
584 | codec->dapm.idle_bias_off = 1; | |
585 | ||
586 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8770->control_type); | |
587 | if (ret < 0) { | |
588 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
589 | return ret; | |
590 | } | |
591 | ||
592 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); i++) | |
593 | wm8770->supplies[i].supply = wm8770_supply_names[i]; | |
594 | ||
595 | ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8770->supplies), | |
596 | wm8770->supplies); | |
597 | if (ret) { | |
598 | dev_err(codec->dev, "Failed to request supplies: %d\n", ret); | |
599 | return ret; | |
600 | } | |
601 | ||
602 | wm8770->disable_nb[0].notifier_call = wm8770_regulator_event_0; | |
603 | wm8770->disable_nb[1].notifier_call = wm8770_regulator_event_1; | |
604 | wm8770->disable_nb[2].notifier_call = wm8770_regulator_event_2; | |
605 | ||
606 | /* This should really be moved into the regulator core */ | |
607 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); i++) { | |
608 | ret = regulator_register_notifier(wm8770->supplies[i].consumer, | |
609 | &wm8770->disable_nb[i]); | |
610 | if (ret) { | |
611 | dev_err(codec->dev, | |
612 | "Failed to register regulator notifier: %d\n", | |
613 | ret); | |
614 | } | |
615 | } | |
616 | ||
617 | ret = regulator_bulk_enable(ARRAY_SIZE(wm8770->supplies), | |
618 | wm8770->supplies); | |
619 | if (ret) { | |
620 | dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); | |
621 | goto err_reg_get; | |
622 | } | |
623 | ||
624 | ret = wm8770_reset(codec); | |
625 | if (ret < 0) { | |
626 | dev_err(codec->dev, "Failed to issue reset: %d\n", ret); | |
627 | goto err_reg_enable; | |
628 | } | |
629 | ||
630 | wm8770_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
631 | ||
632 | /* latch the volume update bits */ | |
633 | snd_soc_update_bits(codec, WM8770_MSDIGVOL, 0x100, 0x100); | |
634 | snd_soc_update_bits(codec, WM8770_MSALGVOL, 0x100, 0x100); | |
635 | snd_soc_update_bits(codec, WM8770_VOUT1RVOL, 0x100, 0x100); | |
636 | snd_soc_update_bits(codec, WM8770_VOUT2RVOL, 0x100, 0x100); | |
637 | snd_soc_update_bits(codec, WM8770_VOUT3RVOL, 0x100, 0x100); | |
638 | snd_soc_update_bits(codec, WM8770_VOUT4RVOL, 0x100, 0x100); | |
639 | snd_soc_update_bits(codec, WM8770_DAC1RVOL, 0x100, 0x100); | |
640 | snd_soc_update_bits(codec, WM8770_DAC2RVOL, 0x100, 0x100); | |
641 | snd_soc_update_bits(codec, WM8770_DAC3RVOL, 0x100, 0x100); | |
642 | snd_soc_update_bits(codec, WM8770_DAC4RVOL, 0x100, 0x100); | |
643 | ||
644 | /* mute all DACs */ | |
645 | snd_soc_update_bits(codec, WM8770_DACMUTE, 0x10, 0x10); | |
646 | ||
647 | snd_soc_add_controls(codec, wm8770_snd_controls, | |
648 | ARRAY_SIZE(wm8770_snd_controls)); | |
649 | snd_soc_dapm_new_controls(&codec->dapm, wm8770_dapm_widgets, | |
650 | ARRAY_SIZE(wm8770_dapm_widgets)); | |
651 | snd_soc_dapm_add_routes(&codec->dapm, wm8770_intercon, | |
652 | ARRAY_SIZE(wm8770_intercon)); | |
653 | return 0; | |
654 | ||
655 | err_reg_enable: | |
656 | regulator_bulk_disable(ARRAY_SIZE(wm8770->supplies), wm8770->supplies); | |
657 | err_reg_get: | |
658 | regulator_bulk_free(ARRAY_SIZE(wm8770->supplies), wm8770->supplies); | |
659 | return ret; | |
660 | } | |
661 | ||
662 | static int wm8770_remove(struct snd_soc_codec *codec) | |
663 | { | |
664 | struct wm8770_priv *wm8770; | |
665 | int i; | |
666 | ||
667 | wm8770 = snd_soc_codec_get_drvdata(codec); | |
668 | wm8770_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
669 | ||
670 | for (i = 0; i < ARRAY_SIZE(wm8770->supplies); ++i) | |
671 | regulator_unregister_notifier(wm8770->supplies[i].consumer, | |
672 | &wm8770->disable_nb[i]); | |
673 | regulator_bulk_free(ARRAY_SIZE(wm8770->supplies), wm8770->supplies); | |
674 | return 0; | |
675 | } | |
676 | ||
677 | static struct snd_soc_codec_driver soc_codec_dev_wm8770 = { | |
678 | .probe = wm8770_probe, | |
679 | .remove = wm8770_remove, | |
680 | .suspend = wm8770_suspend, | |
681 | .resume = wm8770_resume, | |
682 | .set_bias_level = wm8770_set_bias_level, | |
683 | .reg_cache_size = ARRAY_SIZE(wm8770_reg_defs), | |
684 | .reg_word_size = sizeof (u16), | |
685 | .reg_cache_default = wm8770_reg_defs | |
686 | }; | |
687 | ||
13c7d08f MB |
688 | static const struct of_device_id wm8770_of_match[] = { |
689 | { .compatible = "wlf,wm8770", }, | |
690 | { } | |
691 | }; | |
692 | MODULE_DEVICE_TABLE(of, wm8770_of_match); | |
693 | ||
c046fd4d DP |
694 | #if defined(CONFIG_SPI_MASTER) |
695 | static int __devinit wm8770_spi_probe(struct spi_device *spi) | |
696 | { | |
697 | struct wm8770_priv *wm8770; | |
698 | int ret; | |
699 | ||
700 | wm8770 = kzalloc(sizeof(struct wm8770_priv), GFP_KERNEL); | |
701 | if (!wm8770) | |
702 | return -ENOMEM; | |
703 | ||
704 | wm8770->control_type = SND_SOC_SPI; | |
705 | spi_set_drvdata(spi, wm8770); | |
706 | ||
707 | ret = snd_soc_register_codec(&spi->dev, | |
708 | &soc_codec_dev_wm8770, &wm8770_dai, 1); | |
709 | if (ret < 0) | |
710 | kfree(wm8770); | |
711 | return ret; | |
712 | } | |
713 | ||
714 | static int __devexit wm8770_spi_remove(struct spi_device *spi) | |
715 | { | |
716 | snd_soc_unregister_codec(&spi->dev); | |
717 | kfree(spi_get_drvdata(spi)); | |
718 | return 0; | |
719 | } | |
720 | ||
721 | static struct spi_driver wm8770_spi_driver = { | |
722 | .driver = { | |
723 | .name = "wm8770", | |
724 | .owner = THIS_MODULE, | |
13c7d08f | 725 | .of_match_table = wm8770_of_match, |
c046fd4d DP |
726 | }, |
727 | .probe = wm8770_spi_probe, | |
728 | .remove = __devexit_p(wm8770_spi_remove) | |
729 | }; | |
730 | #endif | |
731 | ||
732 | static int __init wm8770_modinit(void) | |
733 | { | |
734 | int ret = 0; | |
735 | ||
736 | #if defined(CONFIG_SPI_MASTER) | |
737 | ret = spi_register_driver(&wm8770_spi_driver); | |
738 | if (ret) { | |
739 | printk(KERN_ERR "Failed to register wm8770 SPI driver: %d\n", | |
740 | ret); | |
741 | } | |
742 | #endif | |
743 | return ret; | |
744 | } | |
745 | module_init(wm8770_modinit); | |
746 | ||
747 | static void __exit wm8770_exit(void) | |
748 | { | |
749 | #if defined(CONFIG_SPI_MASTER) | |
750 | spi_unregister_driver(&wm8770_spi_driver); | |
751 | #endif | |
752 | } | |
753 | module_exit(wm8770_exit); | |
754 | ||
755 | MODULE_DESCRIPTION("ASoC WM8770 driver"); | |
756 | MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>"); | |
757 | MODULE_LICENSE("GPL"); |