?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Linux 3.8-rc7
[cris-mirror.git] / sound / soc / codecs / wm8960.c
blob9bb9273259937770ac4f8b188b05f803a1079121
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, 0x0097 },
57 { 0x1, 0x0097 },
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
208 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
209 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
210 0, 63, 0, adc_tlv),
211 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
212 6, 1, 0),
213 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
214 7, 1, 0),
215
216 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
217 0, 255, 0, dac_tlv),
218
219 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
220 0, 127, 0, out_tlv),
221 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
222 7, 1, 0),
223
224 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
225 0, 127, 0, out_tlv),
226 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
227 7, 1, 0),
228 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
229 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
230
231 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
232 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
233 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
234
235 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
236 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
237 wm8960_get_deemph, wm8960_put_deemph),
238
239 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
240 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
241 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
242 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
243
244 SOC_ENUM("ALC Function", wm8960_enum[4]),
245 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
246 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
247 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
248 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
249 SOC_ENUM("ALC Mode", wm8960_enum[5]),
250 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
251 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
252
253 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
254 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
255
256 SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
257 0, 127, 0),
258
259 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
260 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
261 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
262 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
263 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
264 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
265 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
266 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
267 };
268
269 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
270 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
271 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
272 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
273 };
274
275 static const struct snd_kcontrol_new wm8960_lin[] = {
276 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
277 };
278
279 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
280 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
281 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
282 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
283 };
284
285 static const struct snd_kcontrol_new wm8960_rin[] = {
286 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
287 };
288
289 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
290 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
291 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
292 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
293 };
294
295 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
296 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
297 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
298 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
299 };
300
301 static const struct snd_kcontrol_new wm8960_mono_out[] = {
302 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
303 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
304 };
305
306 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
307 SND_SOC_DAPM_INPUT("LINPUT1"),
308 SND_SOC_DAPM_INPUT("RINPUT1"),
309 SND_SOC_DAPM_INPUT("LINPUT2"),
310 SND_SOC_DAPM_INPUT("RINPUT2"),
311 SND_SOC_DAPM_INPUT("LINPUT3"),
312 SND_SOC_DAPM_INPUT("RINPUT3"),
313
314 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
315
316 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
317 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
318 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
319 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
320
321 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
322 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
323 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
324 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
325
326 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
327 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
328
329 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
330 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
331
332 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
333 &wm8960_loutput_mixer[0],
334 ARRAY_SIZE(wm8960_loutput_mixer)),
335 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
336 &wm8960_routput_mixer[0],
337 ARRAY_SIZE(wm8960_routput_mixer)),
338
339 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
340 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
341
342 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
343 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
344
345 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
346 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
347
348 SND_SOC_DAPM_OUTPUT("SPK_LP"),
349 SND_SOC_DAPM_OUTPUT("SPK_LN"),
350 SND_SOC_DAPM_OUTPUT("HP_L"),
351 SND_SOC_DAPM_OUTPUT("HP_R"),
352 SND_SOC_DAPM_OUTPUT("SPK_RP"),
353 SND_SOC_DAPM_OUTPUT("SPK_RN"),
354 SND_SOC_DAPM_OUTPUT("OUT3"),
355 };
356
357 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
358 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
359 &wm8960_mono_out[0],
360 ARRAY_SIZE(wm8960_mono_out)),
361 };
362
363 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
364 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
365 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
366 };
367
368 static const struct snd_soc_dapm_route audio_paths[] = {
369 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
370 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
371 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
372
373 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
374 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
375 { "Left Input Mixer", NULL, "LINPUT2" },
376 { "Left Input Mixer", NULL, "LINPUT3" },
377
378 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
379 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
380 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
381
382 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
383 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
384 { "Right Input Mixer", NULL, "RINPUT2" },
385 { "Right Input Mixer", NULL, "LINPUT3" },
386
387 { "Left ADC", NULL, "Left Input Mixer" },
388 { "Right ADC", NULL, "Right Input Mixer" },
389
390 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
391 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
392 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
393
394 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
395 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
396 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
397
398 { "LOUT1 PGA", NULL, "Left Output Mixer" },
399 { "ROUT1 PGA", NULL, "Right Output Mixer" },
400
401 { "HP_L", NULL, "LOUT1 PGA" },
402 { "HP_R", NULL, "ROUT1 PGA" },
403
404 { "Left Speaker PGA", NULL, "Left Output Mixer" },
405 { "Right Speaker PGA", NULL, "Right Output Mixer" },
406
407 { "Left Speaker Output", NULL, "Left Speaker PGA" },
408 { "Right Speaker Output", NULL, "Right Speaker PGA" },
409
410 { "SPK_LN", NULL, "Left Speaker Output" },
411 { "SPK_LP", NULL, "Left Speaker Output" },
412 { "SPK_RN", NULL, "Right Speaker Output" },
413 { "SPK_RP", NULL, "Right Speaker Output" },
414 };
415
416 static const struct snd_soc_dapm_route audio_paths_out3[] = {
417 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
418 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
419
420 { "OUT3", NULL, "Mono Output Mixer", }
421 };
422
423 static const struct snd_soc_dapm_route audio_paths_capless[] = {
424 { "HP_L", NULL, "OUT3 VMID" },
425 { "HP_R", NULL, "OUT3 VMID" },
426
427 { "OUT3 VMID", NULL, "Left Output Mixer" },
428 { "OUT3 VMID", NULL, "Right Output Mixer" },
429 };
430
431 static int wm8960_add_widgets(struct snd_soc_codec *codec)
432 {
433 struct wm8960_data *pdata = codec->dev->platform_data;
434 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
435 struct snd_soc_dapm_context *dapm = &codec->dapm;
436 struct snd_soc_dapm_widget *w;
437
438 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
439 ARRAY_SIZE(wm8960_dapm_widgets));
440
441 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
442
443 /* In capless mode OUT3 is used to provide VMID for the
444 * headphone outputs, otherwise it is used as a mono mixer.
445 */
446 if (pdata && pdata->capless) {
447 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
448 ARRAY_SIZE(wm8960_dapm_widgets_capless));
449
450 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
451 ARRAY_SIZE(audio_paths_capless));
452 } else {
453 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
454 ARRAY_SIZE(wm8960_dapm_widgets_out3));
455
456 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
457 ARRAY_SIZE(audio_paths_out3));
458 }
459
460 /* We need to power up the headphone output stage out of
461 * sequence for capless mode. To save scanning the widget
462 * list each time to find the desired power state do so now
463 * and save the result.
464 */
465 list_for_each_entry(w, &codec->card->widgets, list) {
466 if (w->dapm != &codec->dapm)
467 continue;
468 if (strcmp(w->name, "LOUT1 PGA") == 0)
469 wm8960->lout1 = w;
470 if (strcmp(w->name, "ROUT1 PGA") == 0)
471 wm8960->rout1 = w;
472 if (strcmp(w->name, "OUT3 VMID") == 0)
473 wm8960->out3 = w;
474 }
475
476 return 0;
477 }
478
479 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
480 unsigned int fmt)
481 {
482 struct snd_soc_codec *codec = codec_dai->codec;
483 u16 iface = 0;
484
485 /* set master/slave audio interface */
486 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
487 case SND_SOC_DAIFMT_CBM_CFM:
488 iface |= 0x0040;
489 break;
490 case SND_SOC_DAIFMT_CBS_CFS:
491 break;
492 default:
493 return -EINVAL;
494 }
495
496 /* interface format */
497 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
498 case SND_SOC_DAIFMT_I2S:
499 iface |= 0x0002;
500 break;
501 case SND_SOC_DAIFMT_RIGHT_J:
502 break;
503 case SND_SOC_DAIFMT_LEFT_J:
504 iface |= 0x0001;
505 break;
506 case SND_SOC_DAIFMT_DSP_A:
507 iface |= 0x0003;
508 break;
509 case SND_SOC_DAIFMT_DSP_B:
510 iface |= 0x0013;
511 break;
512 default:
513 return -EINVAL;
514 }
515
516 /* clock inversion */
517 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
518 case SND_SOC_DAIFMT_NB_NF:
519 break;
520 case SND_SOC_DAIFMT_IB_IF:
521 iface |= 0x0090;
522 break;
523 case SND_SOC_DAIFMT_IB_NF:
524 iface |= 0x0080;
525 break;
526 case SND_SOC_DAIFMT_NB_IF:
527 iface |= 0x0010;
528 break;
529 default:
530 return -EINVAL;
531 }
532
533 /* set iface */
534 snd_soc_write(codec, WM8960_IFACE1, iface);
535 return 0;
536 }
537
538 static struct {
539 int rate;
540 unsigned int val;
541 } alc_rates[] = {
542 { 48000, 0 },
543 { 44100, 0 },
544 { 32000, 1 },
545 { 22050, 2 },
546 { 24000, 2 },
547 { 16000, 3 },
548 { 11250, 4 },
549 { 12000, 4 },
550 { 8000, 5 },
551 };
552
553 static int wm8960_hw_params(struct snd_pcm_substream *substream,
554 struct snd_pcm_hw_params *params,
555 struct snd_soc_dai *dai)
556 {
557 struct snd_soc_codec *codec = dai->codec;
558 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
559 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
560 snd_pcm_format_t format = params_format(params);
561 int i;
562
563 /* bit size */
564 switch (format) {
565 case SNDRV_PCM_FORMAT_S16_LE:
566 case SNDRV_PCM_FORMAT_S16_BE:
567 break;
568 case SNDRV_PCM_FORMAT_S20_3LE:
569 case SNDRV_PCM_FORMAT_S20_3BE:
570 iface |= 0x0004;
571 break;
572 case SNDRV_PCM_FORMAT_S24_LE:
573 case SNDRV_PCM_FORMAT_S24_BE:
574 iface |= 0x0008;
575 break;
576 default:
577 dev_err(codec->dev, "unsupported format %i\n", format);
578 return -EINVAL;
579 }
580
581 /* Update filters for the new rate */
582 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
583 wm8960->playback_fs = params_rate(params);
584 wm8960_set_deemph(codec);
585 } else {
586 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
587 if (alc_rates[i].rate == params_rate(params))
588 snd_soc_update_bits(codec,
589 WM8960_ADDCTL3, 0x7,
590 alc_rates[i].val);
591 }
592
593 /* set iface */
594 snd_soc_write(codec, WM8960_IFACE1, iface);
595 return 0;
596 }
597
598 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
599 {
600 struct snd_soc_codec *codec = dai->codec;
601
602 if (mute)
603 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
604 else
605 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
606 return 0;
607 }
608
609 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
610 enum snd_soc_bias_level level)
611 {
612 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
613
614 switch (level) {
615 case SND_SOC_BIAS_ON:
616 break;
617
618 case SND_SOC_BIAS_PREPARE:
619 /* Set VMID to 2x50k */
620 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
621 break;
622
623 case SND_SOC_BIAS_STANDBY:
624 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
625 regcache_sync(wm8960->regmap);
626
627 /* Enable anti-pop features */
628 snd_soc_write(codec, WM8960_APOP1,
629 WM8960_POBCTRL | WM8960_SOFT_ST |
630 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
631
632 /* Enable & ramp VMID at 2x50k */
633 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
634 msleep(100);
635
636 /* Enable VREF */
637 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
638 WM8960_VREF);
639
640 /* Disable anti-pop features */
641 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
642 }
643
644 /* Set VMID to 2x250k */
645 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
646 break;
647
648 case SND_SOC_BIAS_OFF:
649 /* Enable anti-pop features */
650 snd_soc_write(codec, WM8960_APOP1,
651 WM8960_POBCTRL | WM8960_SOFT_ST |
652 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
653
654 /* Disable VMID and VREF, let them discharge */
655 snd_soc_write(codec, WM8960_POWER1, 0);
656 msleep(600);
657 break;
658 }
659
660 codec->dapm.bias_level = level;
661
662 return 0;
663 }
664
665 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
666 enum snd_soc_bias_level level)
667 {
668 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
669 int reg;
670
671 switch (level) {
672 case SND_SOC_BIAS_ON:
673 break;
674
675 case SND_SOC_BIAS_PREPARE:
676 switch (codec->dapm.bias_level) {
677 case SND_SOC_BIAS_STANDBY:
678 /* Enable anti pop mode */
679 snd_soc_update_bits(codec, WM8960_APOP1,
680 WM8960_POBCTRL | WM8960_SOFT_ST |
681 WM8960_BUFDCOPEN,
682 WM8960_POBCTRL | WM8960_SOFT_ST |
683 WM8960_BUFDCOPEN);
684
685 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
686 reg = 0;
687 if (wm8960->lout1 && wm8960->lout1->power)
688 reg |= WM8960_PWR2_LOUT1;
689 if (wm8960->rout1 && wm8960->rout1->power)
690 reg |= WM8960_PWR2_ROUT1;
691 if (wm8960->out3 && wm8960->out3->power)
692 reg |= WM8960_PWR2_OUT3;
693 snd_soc_update_bits(codec, WM8960_POWER2,
694 WM8960_PWR2_LOUT1 |
695 WM8960_PWR2_ROUT1 |
696 WM8960_PWR2_OUT3, reg);
697
698 /* Enable VMID at 2*50k */
699 snd_soc_update_bits(codec, WM8960_POWER1,
700 WM8960_VMID_MASK, 0x80);
701
702 /* Ramp */
703 msleep(100);
704
705 /* Enable VREF */
706 snd_soc_update_bits(codec, WM8960_POWER1,
707 WM8960_VREF, WM8960_VREF);
708
709 msleep(100);
710 break;
711
712 case SND_SOC_BIAS_ON:
713 /* Enable anti-pop mode */
714 snd_soc_update_bits(codec, WM8960_APOP1,
715 WM8960_POBCTRL | WM8960_SOFT_ST |
716 WM8960_BUFDCOPEN,
717 WM8960_POBCTRL | WM8960_SOFT_ST |
718 WM8960_BUFDCOPEN);
719
720 /* Disable VMID and VREF */
721 snd_soc_update_bits(codec, WM8960_POWER1,
722 WM8960_VREF | WM8960_VMID_MASK, 0);
723 break;
724
725 case SND_SOC_BIAS_OFF:
726 regcache_sync(wm8960->regmap);
727 break;
728 default:
729 break;
730 }
731 break;
732
733 case SND_SOC_BIAS_STANDBY:
734 switch (codec->dapm.bias_level) {
735 case SND_SOC_BIAS_PREPARE:
736 /* Disable HP discharge */
737 snd_soc_update_bits(codec, WM8960_APOP2,
738 WM8960_DISOP | WM8960_DRES_MASK,
739 0);
740
741 /* Disable anti-pop features */
742 snd_soc_update_bits(codec, WM8960_APOP1,
743 WM8960_POBCTRL | WM8960_SOFT_ST |
744 WM8960_BUFDCOPEN,
745 WM8960_POBCTRL | WM8960_SOFT_ST |
746 WM8960_BUFDCOPEN);
747 break;
748
749 default:
750 break;
751 }
752 break;
753
754 case SND_SOC_BIAS_OFF:
755 break;
756 }
757
758 codec->dapm.bias_level = level;
759
760 return 0;
761 }
762
763 /* PLL divisors */
764 struct _pll_div {
765 u32 pre_div:1;
766 u32 n:4;
767 u32 k:24;
768 };
769
770 /* The size in bits of the pll divide multiplied by 10
771 * to allow rounding later */
772 #define FIXED_PLL_SIZE ((1 << 24) * 10)
773
774 static int pll_factors(unsigned int source, unsigned int target,
775 struct _pll_div *pll_div)
776 {
777 unsigned long long Kpart;
778 unsigned int K, Ndiv, Nmod;
779
780 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
781
782 /* Scale up target to PLL operating frequency */
783 target *= 4;
784
785 Ndiv = target / source;
786 if (Ndiv < 6) {
787 source >>= 1;
788 pll_div->pre_div = 1;
789 Ndiv = target / source;
790 } else
791 pll_div->pre_div = 0;
792
793 if ((Ndiv < 6) || (Ndiv > 12)) {
794 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
795 return -EINVAL;
796 }
797
798 pll_div->n = Ndiv;
799 Nmod = target % source;
800 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
801
802 do_div(Kpart, source);
803
804 K = Kpart & 0xFFFFFFFF;
805
806 /* Check if we need to round */
807 if ((K % 10) >= 5)
808 K += 5;
809
810 /* Move down to proper range now rounding is done */
811 K /= 10;
812
813 pll_div->k = K;
814
815 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
816 pll_div->n, pll_div->k, pll_div->pre_div);
817
818 return 0;
819 }
820
821 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
822 int source, unsigned int freq_in, unsigned int freq_out)
823 {
824 struct snd_soc_codec *codec = codec_dai->codec;
825 u16 reg;
826 static struct _pll_div pll_div;
827 int ret;
828
829 if (freq_in && freq_out) {
830 ret = pll_factors(freq_in, freq_out, &pll_div);
831 if (ret != 0)
832 return ret;
833 }
834
835 /* Disable the PLL: even if we are changing the frequency the
836 * PLL needs to be disabled while we do so. */
837 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
838 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
839
840 if (!freq_in || !freq_out)
841 return 0;
842
843 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
844 reg |= pll_div.pre_div << 4;
845 reg |= pll_div.n;
846
847 if (pll_div.k) {
848 reg |= 0x20;
849
850 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
851 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
852 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
853 }
854 snd_soc_write(codec, WM8960_PLL1, reg);
855
856 /* Turn it on */
857 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
858 msleep(250);
859 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
860
861 return 0;
862 }
863
864 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
865 int div_id, int div)
866 {
867 struct snd_soc_codec *codec = codec_dai->codec;
868 u16 reg;
869
870 switch (div_id) {
871 case WM8960_SYSCLKDIV:
872 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
873 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
874 break;
875 case WM8960_DACDIV:
876 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
877 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
878 break;
879 case WM8960_OPCLKDIV:
880 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
881 snd_soc_write(codec, WM8960_PLL1, reg | div);
882 break;
883 case WM8960_DCLKDIV:
884 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
885 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
886 break;
887 case WM8960_TOCLKSEL:
888 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
889 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
890 break;
891 default:
892 return -EINVAL;
893 }
894
895 return 0;
896 }
897
898 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
899 enum snd_soc_bias_level level)
900 {
901 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
902
903 return wm8960->set_bias_level(codec, level);
904 }
905
906 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
907
908 #define WM8960_FORMATS \
909 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
910 SNDRV_PCM_FMTBIT_S24_LE)
911
912 static const struct snd_soc_dai_ops wm8960_dai_ops = {
913 .hw_params = wm8960_hw_params,
914 .digital_mute = wm8960_mute,
915 .set_fmt = wm8960_set_dai_fmt,
916 .set_clkdiv = wm8960_set_dai_clkdiv,
917 .set_pll = wm8960_set_dai_pll,
918 };
919
920 static struct snd_soc_dai_driver wm8960_dai = {
921 .name = "wm8960-hifi",
922 .playback = {
923 .stream_name = "Playback",
924 .channels_min = 1,
925 .channels_max = 2,
926 .rates = WM8960_RATES,
927 .formats = WM8960_FORMATS,},
928 .capture = {
929 .stream_name = "Capture",
930 .channels_min = 1,
931 .channels_max = 2,
932 .rates = WM8960_RATES,
933 .formats = WM8960_FORMATS,},
934 .ops = &wm8960_dai_ops,
935 .symmetric_rates = 1,
936 };
937
938 static int wm8960_suspend(struct snd_soc_codec *codec)
939 {
940 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
941
942 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
943 return 0;
944 }
945
946 static int wm8960_resume(struct snd_soc_codec *codec)
947 {
948 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
949
950 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
951 return 0;
952 }
953
954 static int wm8960_probe(struct snd_soc_codec *codec)
955 {
956 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
957 struct wm8960_data *pdata = dev_get_platdata(codec->dev);
958 int ret;
959
960 wm8960->set_bias_level = wm8960_set_bias_level_out3;
961
962 if (!pdata) {
963 dev_warn(codec->dev, "No platform data supplied\n");
964 } else {
965 if (pdata->capless)
966 wm8960->set_bias_level = wm8960_set_bias_level_capless;
967 }
968
969 ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
970 if (ret < 0) {
971 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
972 return ret;
973 }
974
975 ret = wm8960_reset(codec);
976 if (ret < 0) {
977 dev_err(codec->dev, "Failed to issue reset\n");
978 return ret;
979 }
980
981 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
982
983 /* Latch the update bits */
984 snd_soc_update_bits(codec, WM8960_LINVOL, 0x100, 0x100);
985 snd_soc_update_bits(codec, WM8960_RINVOL, 0x100, 0x100);
986 snd_soc_update_bits(codec, WM8960_LADC, 0x100, 0x100);
987 snd_soc_update_bits(codec, WM8960_RADC, 0x100, 0x100);
988 snd_soc_update_bits(codec, WM8960_LDAC, 0x100, 0x100);
989 snd_soc_update_bits(codec, WM8960_RDAC, 0x100, 0x100);
990 snd_soc_update_bits(codec, WM8960_LOUT1, 0x100, 0x100);
991 snd_soc_update_bits(codec, WM8960_ROUT1, 0x100, 0x100);
992 snd_soc_update_bits(codec, WM8960_LOUT2, 0x100, 0x100);
993 snd_soc_update_bits(codec, WM8960_ROUT2, 0x100, 0x100);
994
995 snd_soc_add_codec_controls(codec, wm8960_snd_controls,
996 ARRAY_SIZE(wm8960_snd_controls));
997 wm8960_add_widgets(codec);
998
999 return 0;
1000 }
1001
1002 /* power down chip */
1003 static int wm8960_remove(struct snd_soc_codec *codec)
1004 {
1005 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1006
1007 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
1008 return 0;
1009 }
1010
1011 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1012 .probe = wm8960_probe,
1013 .remove = wm8960_remove,
1014 .suspend = wm8960_suspend,
1015 .resume = wm8960_resume,
1016 .set_bias_level = wm8960_set_bias_level,
1017 };
1018
1019 static const struct regmap_config wm8960_regmap = {
1020 .reg_bits = 7,
1021 .val_bits = 9,
1022 .max_register = WM8960_PLL4,
1023
1024 .reg_defaults = wm8960_reg_defaults,
1025 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1026 .cache_type = REGCACHE_RBTREE,
1027
1028 .volatile_reg = wm8960_volatile,
1029 };
1030
1031 static int wm8960_i2c_probe(struct i2c_client *i2c,
1032 const struct i2c_device_id *id)
1033 {
1034 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1035 struct wm8960_priv *wm8960;
1036 int ret;
1037
1038 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1039 GFP_KERNEL);
1040 if (wm8960 == NULL)
1041 return -ENOMEM;
1042
1043 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1044 if (IS_ERR(wm8960->regmap))
1045 return PTR_ERR(wm8960->regmap);
1046
1047 if (pdata && pdata->shared_lrclk) {
1048 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1049 0x4, 0x4);
1050 if (ret != 0) {
1051 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1052 ret);
1053 return ret;
1054 }
1055 }
1056
1057 i2c_set_clientdata(i2c, wm8960);
1058
1059 ret = snd_soc_register_codec(&i2c->dev,
1060 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1061
1062 return ret;
1063 }
1064
1065 static int wm8960_i2c_remove(struct i2c_client *client)
1066 {
1067 snd_soc_unregister_codec(&client->dev);
1068 return 0;
1069 }
1070
1071 static const struct i2c_device_id wm8960_i2c_id[] = {
1072 { "wm8960", 0 },
1073 { }
1074 };
1075 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1076
1077 static struct i2c_driver wm8960_i2c_driver = {
1078 .driver = {
1079 .name = "wm8960",
1080 .owner = THIS_MODULE,
1081 },
1082 .probe = wm8960_i2c_probe,
1083 .remove = wm8960_i2c_remove,
1084 .id_table = wm8960_i2c_id,
1085 };
1086
1087 module_i2c_driver(wm8960_i2c_driver);
1088
1089 MODULE_DESCRIPTION("ASoC WM8960 driver");
1090 MODULE_AUTHOR("Liam Girdwood");
1091 MODULE_LICENSE("GPL");
CRIS linux kernel tree