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x86/xen: resume timer irqs early
[linux/fpc-iii.git] / sound / soc / codecs / wm8960.c
blobf156010e52bc1ae5f206e1ddcf1b3a62aa1c1f2d
1 /*
2 * wm8960.c -- WM8960 ALSA SoC Audio driver
3 *
4 * Copyright 2007-11 Wolfson Microelectronics, plc
5 *
6 * Author: Liam Girdwood
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/pm.h>
18 #include <linux/i2c.h>
19 #include <linux/slab.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/initval.h>
25 #include <sound/tlv.h>
26 #include <sound/wm8960.h>
27
28 #include "wm8960.h"
29
30 /* R25 - Power 1 */
31 #define WM8960_VMID_MASK 0x180
32 #define WM8960_VREF 0x40
33
34 /* R26 - Power 2 */
35 #define WM8960_PWR2_LOUT1 0x40
36 #define WM8960_PWR2_ROUT1 0x20
37 #define WM8960_PWR2_OUT3 0x02
38
39 /* R28 - Anti-pop 1 */
40 #define WM8960_POBCTRL 0x80
41 #define WM8960_BUFDCOPEN 0x10
42 #define WM8960_BUFIOEN 0x08
43 #define WM8960_SOFT_ST 0x04
44 #define WM8960_HPSTBY 0x01
45
46 /* R29 - Anti-pop 2 */
47 #define WM8960_DISOP 0x40
48 #define WM8960_DRES_MASK 0x30
49
50 /*
51 * wm8960 register cache
52 * We can't read the WM8960 register space when we are
53 * using 2 wire for device control, so we cache them instead.
54 */
55 static const struct reg_default wm8960_reg_defaults[] = {
56 { 0x0, 0x00a7 },
57 { 0x1, 0x00a7 },
58 { 0x2, 0x0000 },
59 { 0x3, 0x0000 },
60 { 0x4, 0x0000 },
61 { 0x5, 0x0008 },
62 { 0x6, 0x0000 },
63 { 0x7, 0x000a },
64 { 0x8, 0x01c0 },
65 { 0x9, 0x0000 },
66 { 0xa, 0x00ff },
67 { 0xb, 0x00ff },
68
69 { 0x10, 0x0000 },
70 { 0x11, 0x007b },
71 { 0x12, 0x0100 },
72 { 0x13, 0x0032 },
73 { 0x14, 0x0000 },
74 { 0x15, 0x00c3 },
75 { 0x16, 0x00c3 },
76 { 0x17, 0x01c0 },
77 { 0x18, 0x0000 },
78 { 0x19, 0x0000 },
79 { 0x1a, 0x0000 },
80 { 0x1b, 0x0000 },
81 { 0x1c, 0x0000 },
82 { 0x1d, 0x0000 },
83
84 { 0x20, 0x0100 },
85 { 0x21, 0x0100 },
86 { 0x22, 0x0050 },
87
88 { 0x25, 0x0050 },
89 { 0x26, 0x0000 },
90 { 0x27, 0x0000 },
91 { 0x28, 0x0000 },
92 { 0x29, 0x0000 },
93 { 0x2a, 0x0040 },
94 { 0x2b, 0x0000 },
95 { 0x2c, 0x0000 },
96 { 0x2d, 0x0050 },
97 { 0x2e, 0x0050 },
98 { 0x2f, 0x0000 },
99 { 0x30, 0x0002 },
100 { 0x31, 0x0037 },
101
102 { 0x33, 0x0080 },
103 { 0x34, 0x0008 },
104 { 0x35, 0x0031 },
105 { 0x36, 0x0026 },
106 { 0x37, 0x00e9 },
107 };
108
109 static bool wm8960_volatile(struct device *dev, unsigned int reg)
110 {
111 switch (reg) {
112 case WM8960_RESET:
113 return true;
114 default:
115 return false;
116 }
117 }
118
119 struct wm8960_priv {
120 struct regmap *regmap;
121 int (*set_bias_level)(struct snd_soc_codec *,
122 enum snd_soc_bias_level level);
123 struct snd_soc_dapm_widget *lout1;
124 struct snd_soc_dapm_widget *rout1;
125 struct snd_soc_dapm_widget *out3;
126 bool deemph;
127 int playback_fs;
128 };
129
130 #define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
131
132 /* enumerated controls */
133 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
134 "Right Inverted", "Stereo Inversion"};
135 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
136 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
137 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
138 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
139
140 static const struct soc_enum wm8960_enum[] = {
141 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
142 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
143 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
144 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
145 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
146 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
147 };
148
149 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
150
151 static int wm8960_set_deemph(struct snd_soc_codec *codec)
152 {
153 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
154 int val, i, best;
155
156 /* If we're using deemphasis select the nearest available sample
157 * rate.
158 */
159 if (wm8960->deemph) {
160 best = 1;
161 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
162 if (abs(deemph_settings[i] - wm8960->playback_fs) <
163 abs(deemph_settings[best] - wm8960->playback_fs))
164 best = i;
165 }
166
167 val = best << 1;
168 } else {
169 val = 0;
170 }
171
172 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
173
174 return snd_soc_update_bits(codec, WM8960_DACCTL1,
175 0x6, val);
176 }
177
178 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
180 {
181 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
182 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
183
184 ucontrol->value.enumerated.item[0] = wm8960->deemph;
185 return 0;
186 }
187
188 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
189 struct snd_ctl_elem_value *ucontrol)
190 {
191 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
192 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
193 int deemph = ucontrol->value.enumerated.item[0];
194
195 if (deemph > 1)
196 return -EINVAL;
197
198 wm8960->deemph = deemph;
199
200 return wm8960_set_deemph(codec);
201 }
202
203 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
204 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
205 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
206 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
207 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
208
209 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
210 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
211 0, 63, 0, adc_tlv),
212 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
213 6, 1, 0),
214 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
215 7, 1, 0),
216
217 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
218 WM8960_INBMIX1, 4, 7, 0, boost_tlv),
219 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
220 WM8960_INBMIX1, 1, 7, 0, boost_tlv),
221 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
222 WM8960_INBMIX2, 4, 7, 0, boost_tlv),
223 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
224 WM8960_INBMIX2, 1, 7, 0, boost_tlv),
225
226 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
227 0, 255, 0, dac_tlv),
228
229 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
230 0, 127, 0, out_tlv),
231 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
232 7, 1, 0),
233
234 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
235 0, 127, 0, out_tlv),
236 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
237 7, 1, 0),
238 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
239 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
240
241 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
242 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
243 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
244
245 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
246 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
247 wm8960_get_deemph, wm8960_put_deemph),
248
249 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
250 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
251 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
252 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
253
254 SOC_ENUM("ALC Function", wm8960_enum[4]),
255 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
256 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
257 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
258 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
259 SOC_ENUM("ALC Mode", wm8960_enum[5]),
260 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
261 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
262
263 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
264 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
265
266 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
267 0, 255, 0, adc_tlv),
268
269 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
270 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
271 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
272 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
273 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
274 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
275 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
276 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
277 };
278
279 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
280 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
281 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
282 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
283 };
284
285 static const struct snd_kcontrol_new wm8960_lin[] = {
286 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
287 };
288
289 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
290 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
291 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
292 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
293 };
294
295 static const struct snd_kcontrol_new wm8960_rin[] = {
296 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
297 };
298
299 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
300 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
301 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
302 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
303 };
304
305 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
306 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
307 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
308 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
309 };
310
311 static const struct snd_kcontrol_new wm8960_mono_out[] = {
312 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
313 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
314 };
315
316 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
317 SND_SOC_DAPM_INPUT("LINPUT1"),
318 SND_SOC_DAPM_INPUT("RINPUT1"),
319 SND_SOC_DAPM_INPUT("LINPUT2"),
320 SND_SOC_DAPM_INPUT("RINPUT2"),
321 SND_SOC_DAPM_INPUT("LINPUT3"),
322 SND_SOC_DAPM_INPUT("RINPUT3"),
323
324 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
325
326 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
327 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
328 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
329 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
330
331 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
332 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
333 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
334 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
335
336 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
337 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
338
339 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
340 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
341
342 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
343 &wm8960_loutput_mixer[0],
344 ARRAY_SIZE(wm8960_loutput_mixer)),
345 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
346 &wm8960_routput_mixer[0],
347 ARRAY_SIZE(wm8960_routput_mixer)),
348
349 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
350 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
351
352 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
353 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
354
355 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
356 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
357
358 SND_SOC_DAPM_OUTPUT("SPK_LP"),
359 SND_SOC_DAPM_OUTPUT("SPK_LN"),
360 SND_SOC_DAPM_OUTPUT("HP_L"),
361 SND_SOC_DAPM_OUTPUT("HP_R"),
362 SND_SOC_DAPM_OUTPUT("SPK_RP"),
363 SND_SOC_DAPM_OUTPUT("SPK_RN"),
364 SND_SOC_DAPM_OUTPUT("OUT3"),
365 };
366
367 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
368 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
369 &wm8960_mono_out[0],
370 ARRAY_SIZE(wm8960_mono_out)),
371 };
372
373 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
374 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
375 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
376 };
377
378 static const struct snd_soc_dapm_route audio_paths[] = {
379 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
380 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
381 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
382
383 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
384 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
385 { "Left Input Mixer", NULL, "LINPUT2" },
386 { "Left Input Mixer", NULL, "LINPUT3" },
387
388 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
389 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
390 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
391
392 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
393 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
394 { "Right Input Mixer", NULL, "RINPUT2" },
395 { "Right Input Mixer", NULL, "LINPUT3" },
396
397 { "Left ADC", NULL, "Left Input Mixer" },
398 { "Right ADC", NULL, "Right Input Mixer" },
399
400 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
401 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
402 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
403
404 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
405 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
406 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
407
408 { "LOUT1 PGA", NULL, "Left Output Mixer" },
409 { "ROUT1 PGA", NULL, "Right Output Mixer" },
410
411 { "HP_L", NULL, "LOUT1 PGA" },
412 { "HP_R", NULL, "ROUT1 PGA" },
413
414 { "Left Speaker PGA", NULL, "Left Output Mixer" },
415 { "Right Speaker PGA", NULL, "Right Output Mixer" },
416
417 { "Left Speaker Output", NULL, "Left Speaker PGA" },
418 { "Right Speaker Output", NULL, "Right Speaker PGA" },
419
420 { "SPK_LN", NULL, "Left Speaker Output" },
421 { "SPK_LP", NULL, "Left Speaker Output" },
422 { "SPK_RN", NULL, "Right Speaker Output" },
423 { "SPK_RP", NULL, "Right Speaker Output" },
424 };
425
426 static const struct snd_soc_dapm_route audio_paths_out3[] = {
427 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
428 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
429
430 { "OUT3", NULL, "Mono Output Mixer", }
431 };
432
433 static const struct snd_soc_dapm_route audio_paths_capless[] = {
434 { "HP_L", NULL, "OUT3 VMID" },
435 { "HP_R", NULL, "OUT3 VMID" },
436
437 { "OUT3 VMID", NULL, "Left Output Mixer" },
438 { "OUT3 VMID", NULL, "Right Output Mixer" },
439 };
440
441 static int wm8960_add_widgets(struct snd_soc_codec *codec)
442 {
443 struct wm8960_data *pdata = codec->dev->platform_data;
444 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
445 struct snd_soc_dapm_context *dapm = &codec->dapm;
446 struct snd_soc_dapm_widget *w;
447
448 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
449 ARRAY_SIZE(wm8960_dapm_widgets));
450
451 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
452
453 /* In capless mode OUT3 is used to provide VMID for the
454 * headphone outputs, otherwise it is used as a mono mixer.
455 */
456 if (pdata && pdata->capless) {
457 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
458 ARRAY_SIZE(wm8960_dapm_widgets_capless));
459
460 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
461 ARRAY_SIZE(audio_paths_capless));
462 } else {
463 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
464 ARRAY_SIZE(wm8960_dapm_widgets_out3));
465
466 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
467 ARRAY_SIZE(audio_paths_out3));
468 }
469
470 /* We need to power up the headphone output stage out of
471 * sequence for capless mode. To save scanning the widget
472 * list each time to find the desired power state do so now
473 * and save the result.
474 */
475 list_for_each_entry(w, &codec->card->widgets, list) {
476 if (w->dapm != &codec->dapm)
477 continue;
478 if (strcmp(w->name, "LOUT1 PGA") == 0)
479 wm8960->lout1 = w;
480 if (strcmp(w->name, "ROUT1 PGA") == 0)
481 wm8960->rout1 = w;
482 if (strcmp(w->name, "OUT3 VMID") == 0)
483 wm8960->out3 = w;
484 }
485
486 return 0;
487 }
488
489 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
490 unsigned int fmt)
491 {
492 struct snd_soc_codec *codec = codec_dai->codec;
493 u16 iface = 0;
494
495 /* set master/slave audio interface */
496 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
497 case SND_SOC_DAIFMT_CBM_CFM:
498 iface |= 0x0040;
499 break;
500 case SND_SOC_DAIFMT_CBS_CFS:
501 break;
502 default:
503 return -EINVAL;
504 }
505
506 /* interface format */
507 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
508 case SND_SOC_DAIFMT_I2S:
509 iface |= 0x0002;
510 break;
511 case SND_SOC_DAIFMT_RIGHT_J:
512 break;
513 case SND_SOC_DAIFMT_LEFT_J:
514 iface |= 0x0001;
515 break;
516 case SND_SOC_DAIFMT_DSP_A:
517 iface |= 0x0003;
518 break;
519 case SND_SOC_DAIFMT_DSP_B:
520 iface |= 0x0013;
521 break;
522 default:
523 return -EINVAL;
524 }
525
526 /* clock inversion */
527 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
528 case SND_SOC_DAIFMT_NB_NF:
529 break;
530 case SND_SOC_DAIFMT_IB_IF:
531 iface |= 0x0090;
532 break;
533 case SND_SOC_DAIFMT_IB_NF:
534 iface |= 0x0080;
535 break;
536 case SND_SOC_DAIFMT_NB_IF:
537 iface |= 0x0010;
538 break;
539 default:
540 return -EINVAL;
541 }
542
543 /* set iface */
544 snd_soc_write(codec, WM8960_IFACE1, iface);
545 return 0;
546 }
547
548 static struct {
549 int rate;
550 unsigned int val;
551 } alc_rates[] = {
552 { 48000, 0 },
553 { 44100, 0 },
554 { 32000, 1 },
555 { 22050, 2 },
556 { 24000, 2 },
557 { 16000, 3 },
558 { 11250, 4 },
559 { 12000, 4 },
560 { 8000, 5 },
561 };
562
563 static int wm8960_hw_params(struct snd_pcm_substream *substream,
564 struct snd_pcm_hw_params *params,
565 struct snd_soc_dai *dai)
566 {
567 struct snd_soc_codec *codec = dai->codec;
568 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
569 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
570 snd_pcm_format_t format = params_format(params);
571 int i;
572
573 /* bit size */
574 switch (format) {
575 case SNDRV_PCM_FORMAT_S16_LE:
576 case SNDRV_PCM_FORMAT_S16_BE:
577 break;
578 case SNDRV_PCM_FORMAT_S20_3LE:
579 case SNDRV_PCM_FORMAT_S20_3BE:
580 iface |= 0x0004;
581 break;
582 case SNDRV_PCM_FORMAT_S24_LE:
583 case SNDRV_PCM_FORMAT_S24_BE:
584 iface |= 0x0008;
585 break;
586 default:
587 dev_err(codec->dev, "unsupported format %i\n", format);
588 return -EINVAL;
589 }
590
591 /* Update filters for the new rate */
592 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
593 wm8960->playback_fs = params_rate(params);
594 wm8960_set_deemph(codec);
595 } else {
596 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
597 if (alc_rates[i].rate == params_rate(params))
598 snd_soc_update_bits(codec,
599 WM8960_ADDCTL3, 0x7,
600 alc_rates[i].val);
601 }
602
603 /* set iface */
604 snd_soc_write(codec, WM8960_IFACE1, iface);
605 return 0;
606 }
607
608 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
609 {
610 struct snd_soc_codec *codec = dai->codec;
611
612 if (mute)
613 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
614 else
615 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
616 return 0;
617 }
618
619 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
620 enum snd_soc_bias_level level)
621 {
622 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
623
624 switch (level) {
625 case SND_SOC_BIAS_ON:
626 break;
627
628 case SND_SOC_BIAS_PREPARE:
629 /* Set VMID to 2x50k */
630 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
631 break;
632
633 case SND_SOC_BIAS_STANDBY:
634 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
635 regcache_sync(wm8960->regmap);
636
637 /* Enable anti-pop features */
638 snd_soc_write(codec, WM8960_APOP1,
639 WM8960_POBCTRL | WM8960_SOFT_ST |
640 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
641
642 /* Enable & ramp VMID at 2x50k */
643 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
644 msleep(100);
645
646 /* Enable VREF */
647 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
648 WM8960_VREF);
649
650 /* Disable anti-pop features */
651 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
652 }
653
654 /* Set VMID to 2x250k */
655 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
656 break;
657
658 case SND_SOC_BIAS_OFF:
659 /* Enable anti-pop features */
660 snd_soc_write(codec, WM8960_APOP1,
661 WM8960_POBCTRL | WM8960_SOFT_ST |
662 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
663
664 /* Disable VMID and VREF, let them discharge */
665 snd_soc_write(codec, WM8960_POWER1, 0);
666 msleep(600);
667 break;
668 }
669
670 codec->dapm.bias_level = level;
671
672 return 0;
673 }
674
675 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
676 enum snd_soc_bias_level level)
677 {
678 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
679 int reg;
680
681 switch (level) {
682 case SND_SOC_BIAS_ON:
683 break;
684
685 case SND_SOC_BIAS_PREPARE:
686 switch (codec->dapm.bias_level) {
687 case SND_SOC_BIAS_STANDBY:
688 /* Enable anti pop mode */
689 snd_soc_update_bits(codec, WM8960_APOP1,
690 WM8960_POBCTRL | WM8960_SOFT_ST |
691 WM8960_BUFDCOPEN,
692 WM8960_POBCTRL | WM8960_SOFT_ST |
693 WM8960_BUFDCOPEN);
694
695 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
696 reg = 0;
697 if (wm8960->lout1 && wm8960->lout1->power)
698 reg |= WM8960_PWR2_LOUT1;
699 if (wm8960->rout1 && wm8960->rout1->power)
700 reg |= WM8960_PWR2_ROUT1;
701 if (wm8960->out3 && wm8960->out3->power)
702 reg |= WM8960_PWR2_OUT3;
703 snd_soc_update_bits(codec, WM8960_POWER2,
704 WM8960_PWR2_LOUT1 |
705 WM8960_PWR2_ROUT1 |
706 WM8960_PWR2_OUT3, reg);
707
708 /* Enable VMID at 2*50k */
709 snd_soc_update_bits(codec, WM8960_POWER1,
710 WM8960_VMID_MASK, 0x80);
711
712 /* Ramp */
713 msleep(100);
714
715 /* Enable VREF */
716 snd_soc_update_bits(codec, WM8960_POWER1,
717 WM8960_VREF, WM8960_VREF);
718
719 msleep(100);
720 break;
721
722 case SND_SOC_BIAS_ON:
723 /* Enable anti-pop mode */
724 snd_soc_update_bits(codec, WM8960_APOP1,
725 WM8960_POBCTRL | WM8960_SOFT_ST |
726 WM8960_BUFDCOPEN,
727 WM8960_POBCTRL | WM8960_SOFT_ST |
728 WM8960_BUFDCOPEN);
729
730 /* Disable VMID and VREF */
731 snd_soc_update_bits(codec, WM8960_POWER1,
732 WM8960_VREF | WM8960_VMID_MASK, 0);
733 break;
734
735 case SND_SOC_BIAS_OFF:
736 regcache_sync(wm8960->regmap);
737 break;
738 default:
739 break;
740 }
741 break;
742
743 case SND_SOC_BIAS_STANDBY:
744 switch (codec->dapm.bias_level) {
745 case SND_SOC_BIAS_PREPARE:
746 /* Disable HP discharge */
747 snd_soc_update_bits(codec, WM8960_APOP2,
748 WM8960_DISOP | WM8960_DRES_MASK,
749 0);
750
751 /* Disable anti-pop features */
752 snd_soc_update_bits(codec, WM8960_APOP1,
753 WM8960_POBCTRL | WM8960_SOFT_ST |
754 WM8960_BUFDCOPEN,
755 WM8960_POBCTRL | WM8960_SOFT_ST |
756 WM8960_BUFDCOPEN);
757 break;
758
759 default:
760 break;
761 }
762 break;
763
764 case SND_SOC_BIAS_OFF:
765 break;
766 }
767
768 codec->dapm.bias_level = level;
769
770 return 0;
771 }
772
773 /* PLL divisors */
774 struct _pll_div {
775 u32 pre_div:1;
776 u32 n:4;
777 u32 k:24;
778 };
779
780 /* The size in bits of the pll divide multiplied by 10
781 * to allow rounding later */
782 #define FIXED_PLL_SIZE ((1 << 24) * 10)
783
784 static int pll_factors(unsigned int source, unsigned int target,
785 struct _pll_div *pll_div)
786 {
787 unsigned long long Kpart;
788 unsigned int K, Ndiv, Nmod;
789
790 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
791
792 /* Scale up target to PLL operating frequency */
793 target *= 4;
794
795 Ndiv = target / source;
796 if (Ndiv < 6) {
797 source >>= 1;
798 pll_div->pre_div = 1;
799 Ndiv = target / source;
800 } else
801 pll_div->pre_div = 0;
802
803 if ((Ndiv < 6) || (Ndiv > 12)) {
804 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
805 return -EINVAL;
806 }
807
808 pll_div->n = Ndiv;
809 Nmod = target % source;
810 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
811
812 do_div(Kpart, source);
813
814 K = Kpart & 0xFFFFFFFF;
815
816 /* Check if we need to round */
817 if ((K % 10) >= 5)
818 K += 5;
819
820 /* Move down to proper range now rounding is done */
821 K /= 10;
822
823 pll_div->k = K;
824
825 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
826 pll_div->n, pll_div->k, pll_div->pre_div);
827
828 return 0;
829 }
830
831 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
832 int source, unsigned int freq_in, unsigned int freq_out)
833 {
834 struct snd_soc_codec *codec = codec_dai->codec;
835 u16 reg;
836 static struct _pll_div pll_div;
837 int ret;
838
839 if (freq_in && freq_out) {
840 ret = pll_factors(freq_in, freq_out, &pll_div);
841 if (ret != 0)
842 return ret;
843 }
844
845 /* Disable the PLL: even if we are changing the frequency the
846 * PLL needs to be disabled while we do so. */
847 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
848 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
849
850 if (!freq_in || !freq_out)
851 return 0;
852
853 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
854 reg |= pll_div.pre_div << 4;
855 reg |= pll_div.n;
856
857 if (pll_div.k) {
858 reg |= 0x20;
859
860 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
861 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
862 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff);
863 }
864 snd_soc_write(codec, WM8960_PLL1, reg);
865
866 /* Turn it on */
867 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
868 msleep(250);
869 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
870
871 return 0;
872 }
873
874 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
875 int div_id, int div)
876 {
877 struct snd_soc_codec *codec = codec_dai->codec;
878 u16 reg;
879
880 switch (div_id) {
881 case WM8960_SYSCLKDIV:
882 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
883 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
884 break;
885 case WM8960_DACDIV:
886 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
887 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
888 break;
889 case WM8960_OPCLKDIV:
890 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
891 snd_soc_write(codec, WM8960_PLL1, reg | div);
892 break;
893 case WM8960_DCLKDIV:
894 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
895 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
896 break;
897 case WM8960_TOCLKSEL:
898 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
899 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
900 break;
901 default:
902 return -EINVAL;
903 }
904
905 return 0;
906 }
907
908 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
909 enum snd_soc_bias_level level)
910 {
911 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
912
913 return wm8960->set_bias_level(codec, level);
914 }
915
916 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
917
918 #define WM8960_FORMATS \
919 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
920 SNDRV_PCM_FMTBIT_S24_LE)
921
922 static const struct snd_soc_dai_ops wm8960_dai_ops = {
923 .hw_params = wm8960_hw_params,
924 .digital_mute = wm8960_mute,
925 .set_fmt = wm8960_set_dai_fmt,
926 .set_clkdiv = wm8960_set_dai_clkdiv,
927 .set_pll = wm8960_set_dai_pll,
928 };
929
930 static struct snd_soc_dai_driver wm8960_dai = {
931 .name = "wm8960-hifi",
932 .playback = {
933 .stream_name = "Playback",
934 .channels_min = 1,
935 .channels_max = 2,
936 .rates = WM8960_RATES,
937 .formats = WM8960_FORMATS,},
938 .capture = {
939 .stream_name = "Capture",
940 .channels_min = 1,
941 .channels_max = 2,
942 .rates = WM8960_RATES,
943 .formats = WM8960_FORMATS,},
944 .ops = &wm8960_dai_ops,
945 .symmetric_rates = 1,
946 };
947
948 static int wm8960_suspend(struct snd_soc_codec *codec)
949 {
950 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
951
952 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
953 return 0;
954 }
955
956 static int wm8960_resume(struct snd_soc_codec *codec)
957 {
958 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
959
960 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
961 return 0;
962 }
963
964 static int wm8960_probe(struct snd_soc_codec *codec)
965 {
966 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
967 struct wm8960_data *pdata = dev_get_platdata(codec->dev);
968 int ret;
969
970 wm8960->set_bias_level = wm8960_set_bias_level_out3;
971
972 if (!pdata) {
973 dev_warn(codec->dev, "No platform data supplied\n");
974 } else {
975 if (pdata->capless)
976 wm8960->set_bias_level = wm8960_set_bias_level_capless;
977 }
978
979 ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
980 if (ret < 0) {
981 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
982 return ret;
983 }
984
985 ret = wm8960_reset(codec);
986 if (ret < 0) {
987 dev_err(codec->dev, "Failed to issue reset\n");
988 return ret;
989 }
990
991 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
992
993 /* Latch the update bits */
994 snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100);
995 snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100);
996 snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100);
997 snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100);
998 snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100);
999 snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100);
1000 snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100);
1001 snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100);
1002 snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100);
1003 snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100);
1004
1005 snd_soc_add_codec_controls(codec, wm8960_snd_controls,
1006 ARRAY_SIZE(wm8960_snd_controls));
1007 wm8960_add_widgets(codec);
1008
1009 return 0;
1010 }
1011
1012 /* power down chip */
1013 static int wm8960_remove(struct snd_soc_codec *codec)
1014 {
1015 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1016
1017 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
1018 return 0;
1019 }
1020
1021 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1022 .probe = wm8960_probe,
1023 .remove = wm8960_remove,
1024 .suspend = wm8960_suspend,
1025 .resume = wm8960_resume,
1026 .set_bias_level = wm8960_set_bias_level,
1027 };
1028
1029 static const struct regmap_config wm8960_regmap = {
1030 .reg_bits = 7,
1031 .val_bits = 9,
1032 .max_register = WM8960_PLL4,
1033
1034 .reg_defaults = wm8960_reg_defaults,
1035 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1036 .cache_type = REGCACHE_RBTREE,
1037
1038 .volatile_reg = wm8960_volatile,
1039 };
1040
1041 static int wm8960_i2c_probe(struct i2c_client *i2c,
1042 const struct i2c_device_id *id)
1043 {
1044 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1045 struct wm8960_priv *wm8960;
1046 int ret;
1047
1048 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1049 GFP_KERNEL);
1050 if (wm8960 == NULL)
1051 return -ENOMEM;
1052
1053 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1054 if (IS_ERR(wm8960->regmap))
1055 return PTR_ERR(wm8960->regmap);
1056
1057 if (pdata && pdata->shared_lrclk) {
1058 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1059 0x4, 0x4);
1060 if (ret != 0) {
1061 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1062 ret);
1063 return ret;
1064 }
1065 }
1066
1067 i2c_set_clientdata(i2c, wm8960);
1068
1069 ret = snd_soc_register_codec(&i2c->dev,
1070 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1071
1072 return ret;
1073 }
1074
1075 static int wm8960_i2c_remove(struct i2c_client *client)
1076 {
1077 snd_soc_unregister_codec(&client->dev);
1078 return 0;
1079 }
1080
1081 static const struct i2c_device_id wm8960_i2c_id[] = {
1082 { "wm8960", 0 },
1083 { }
1084 };
1085 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1086
1087 static struct i2c_driver wm8960_i2c_driver = {
1088 .driver = {
1089 .name = "wm8960",
1090 .owner = THIS_MODULE,
1091 },
1092 .probe = wm8960_i2c_probe,
1093 .remove = wm8960_i2c_remove,
1094 .id_table = wm8960_i2c_id,
1095 };
1096
1097 module_i2c_driver(wm8960_i2c_driver);
1098
1099 MODULE_DESCRIPTION("ASoC WM8960 driver");
1100 MODULE_AUTHOR("Liam Girdwood");
1101 MODULE_LICENSE("GPL");
Linux with added FPC-III support