2 * wm8960.c -- WM8960 ALSA SoC Audio driver
4 * Author: Liam Girdwood
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
16 #include <linux/i2c.h>
17 #include <linux/platform_device.h>
18 #include <linux/slab.h>
19 #include <sound/core.h>
20 #include <sound/pcm.h>
21 #include <sound/pcm_params.h>
22 #include <sound/soc.h>
23 #include <sound/initval.h>
24 #include <sound/tlv.h>
25 #include <sound/wm8960.h>
29 #define AUDIO_NAME "wm8960"
32 #define WM8960_VMID_MASK 0x180
33 #define WM8960_VREF 0x40
36 #define WM8960_PWR2_LOUT1 0x40
37 #define WM8960_PWR2_ROUT1 0x20
38 #define WM8960_PWR2_OUT3 0x02
40 /* R28 - Anti-pop 1 */
41 #define WM8960_POBCTRL 0x80
42 #define WM8960_BUFDCOPEN 0x10
43 #define WM8960_BUFIOEN 0x08
44 #define WM8960_SOFT_ST 0x04
45 #define WM8960_HPSTBY 0x01
47 /* R29 - Anti-pop 2 */
48 #define WM8960_DISOP 0x40
49 #define WM8960_DRES_MASK 0x30
52 * wm8960 register cache
53 * We can't read the WM8960 register space when we are
54 * using 2 wire for device control, so we cache them instead.
56 static const u16 wm8960_reg[WM8960_CACHEREGNUM] = {
57 0x0097, 0x0097, 0x0000, 0x0000,
58 0x0000, 0x0008, 0x0000, 0x000a,
59 0x01c0, 0x0000, 0x00ff, 0x00ff,
60 0x0000, 0x0000, 0x0000, 0x0000,
61 0x0000, 0x007b, 0x0100, 0x0032,
62 0x0000, 0x00c3, 0x00c3, 0x01c0,
63 0x0000, 0x0000, 0x0000, 0x0000,
64 0x0000, 0x0000, 0x0000, 0x0000,
65 0x0100, 0x0100, 0x0050, 0x0050,
66 0x0050, 0x0050, 0x0000, 0x0000,
67 0x0000, 0x0000, 0x0040, 0x0000,
68 0x0000, 0x0050, 0x0050, 0x0000,
69 0x0002, 0x0037, 0x004d, 0x0080,
70 0x0008, 0x0031, 0x0026, 0x00e9,
74 enum snd_soc_control_type control_type;
76 int (*set_bias_level)(struct snd_soc_codec *,
77 enum snd_soc_bias_level level);
78 struct snd_soc_dapm_widget *lout1;
79 struct snd_soc_dapm_widget *rout1;
80 struct snd_soc_dapm_widget *out3;
85 #define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
87 /* enumerated controls */
88 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
89 "Right Inverted", "Stereo Inversion"};
90 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
91 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
92 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
93 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
95 static const struct soc_enum wm8960_enum[] = {
96 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
97 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
98 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
99 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
100 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
101 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
104 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
106 static int wm8960_set_deemph(struct snd_soc_codec *codec)
108 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
111 /* If we're using deemphasis select the nearest available sample
114 if (wm8960->deemph) {
116 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
117 if (abs(deemph_settings[i] - wm8960->playback_fs) <
118 abs(deemph_settings[best] - wm8960->playback_fs))
127 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
129 return snd_soc_update_bits(codec, WM8960_DACCTL1,
133 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
134 struct snd_ctl_elem_value *ucontrol)
136 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
137 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
139 ucontrol->value.enumerated.item[0] = wm8960->deemph;
143 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
144 struct snd_ctl_elem_value *ucontrol)
146 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
147 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
148 int deemph = ucontrol->value.enumerated.item[0];
153 wm8960->deemph = deemph;
155 return wm8960_set_deemph(codec);
158 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
159 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
160 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
161 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
163 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
164 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
166 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
168 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
171 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
174 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
176 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
179 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
181 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
183 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
184 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
186 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
187 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
188 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
190 SOC_ENUM("DAC Polarity", wm8960_enum[2]),
191 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
192 wm8960_get_deemph, wm8960_put_deemph),
194 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
195 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
196 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
197 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
199 SOC_ENUM("ALC Function", wm8960_enum[4]),
200 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
201 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
202 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
203 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
204 SOC_ENUM("ALC Mode", wm8960_enum[5]),
205 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
206 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
208 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
209 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
211 SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH, WM8960_RINPATH,
214 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
215 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
216 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
217 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
218 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
219 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
220 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
221 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
224 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
225 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
226 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
227 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
230 static const struct snd_kcontrol_new wm8960_lin[] = {
231 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
234 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
235 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
236 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
237 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
240 static const struct snd_kcontrol_new wm8960_rin[] = {
241 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
244 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
245 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
246 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
247 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
250 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
251 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
252 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
253 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
256 static const struct snd_kcontrol_new wm8960_mono_out[] = {
257 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
258 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
261 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
262 SND_SOC_DAPM_INPUT("LINPUT1"),
263 SND_SOC_DAPM_INPUT("RINPUT1"),
264 SND_SOC_DAPM_INPUT("LINPUT2"),
265 SND_SOC_DAPM_INPUT("RINPUT2"),
266 SND_SOC_DAPM_INPUT("LINPUT3"),
267 SND_SOC_DAPM_INPUT("RINPUT3"),
269 SND_SOC_DAPM_MICBIAS("MICB", WM8960_POWER1, 1, 0),
271 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
272 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
273 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
274 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
276 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
277 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
278 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
279 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
281 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2, 3, 0),
282 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2, 2, 0),
284 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
285 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
287 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
288 &wm8960_loutput_mixer[0],
289 ARRAY_SIZE(wm8960_loutput_mixer)),
290 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
291 &wm8960_routput_mixer[0],
292 ARRAY_SIZE(wm8960_routput_mixer)),
294 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
295 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
297 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
298 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
300 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
301 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
303 SND_SOC_DAPM_OUTPUT("SPK_LP"),
304 SND_SOC_DAPM_OUTPUT("SPK_LN"),
305 SND_SOC_DAPM_OUTPUT("HP_L"),
306 SND_SOC_DAPM_OUTPUT("HP_R"),
307 SND_SOC_DAPM_OUTPUT("SPK_RP"),
308 SND_SOC_DAPM_OUTPUT("SPK_RN"),
309 SND_SOC_DAPM_OUTPUT("OUT3"),
312 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
313 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
315 ARRAY_SIZE(wm8960_mono_out)),
318 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
319 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
320 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
323 static const struct snd_soc_dapm_route audio_paths[] = {
324 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
325 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
326 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
328 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
329 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
330 { "Left Input Mixer", NULL, "LINPUT2" },
331 { "Left Input Mixer", NULL, "LINPUT3" },
333 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
334 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
335 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
337 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
338 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
339 { "Right Input Mixer", NULL, "RINPUT2" },
340 { "Right Input Mixer", NULL, "LINPUT3" },
342 { "Left ADC", NULL, "Left Input Mixer" },
343 { "Right ADC", NULL, "Right Input Mixer" },
345 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
346 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
347 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
349 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
350 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
351 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
353 { "LOUT1 PGA", NULL, "Left Output Mixer" },
354 { "ROUT1 PGA", NULL, "Right Output Mixer" },
356 { "HP_L", NULL, "LOUT1 PGA" },
357 { "HP_R", NULL, "ROUT1 PGA" },
359 { "Left Speaker PGA", NULL, "Left Output Mixer" },
360 { "Right Speaker PGA", NULL, "Right Output Mixer" },
362 { "Left Speaker Output", NULL, "Left Speaker PGA" },
363 { "Right Speaker Output", NULL, "Right Speaker PGA" },
365 { "SPK_LN", NULL, "Left Speaker Output" },
366 { "SPK_LP", NULL, "Left Speaker Output" },
367 { "SPK_RN", NULL, "Right Speaker Output" },
368 { "SPK_RP", NULL, "Right Speaker Output" },
371 static const struct snd_soc_dapm_route audio_paths_out3[] = {
372 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
373 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
375 { "OUT3", NULL, "Mono Output Mixer", }
378 static const struct snd_soc_dapm_route audio_paths_capless[] = {
379 { "HP_L", NULL, "OUT3 VMID" },
380 { "HP_R", NULL, "OUT3 VMID" },
382 { "OUT3 VMID", NULL, "Left Output Mixer" },
383 { "OUT3 VMID", NULL, "Right Output Mixer" },
386 static int wm8960_add_widgets(struct snd_soc_codec *codec)
388 struct wm8960_data *pdata = codec->dev->platform_data;
389 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
390 struct snd_soc_dapm_context *dapm = &codec->dapm;
391 struct snd_soc_dapm_widget *w;
393 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
394 ARRAY_SIZE(wm8960_dapm_widgets));
396 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
398 /* In capless mode OUT3 is used to provide VMID for the
399 * headphone outputs, otherwise it is used as a mono mixer.
401 if (pdata && pdata->capless) {
402 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
403 ARRAY_SIZE(wm8960_dapm_widgets_capless));
405 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
406 ARRAY_SIZE(audio_paths_capless));
408 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
409 ARRAY_SIZE(wm8960_dapm_widgets_out3));
411 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
412 ARRAY_SIZE(audio_paths_out3));
415 /* We need to power up the headphone output stage out of
416 * sequence for capless mode. To save scanning the widget
417 * list each time to find the desired power state do so now
418 * and save the result.
420 list_for_each_entry(w, &codec->card->widgets, list) {
421 if (w->dapm != &codec->dapm)
423 if (strcmp(w->name, "LOUT1 PGA") == 0)
425 if (strcmp(w->name, "ROUT1 PGA") == 0)
427 if (strcmp(w->name, "OUT3 VMID") == 0)
434 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
437 struct snd_soc_codec *codec = codec_dai->codec;
440 /* set master/slave audio interface */
441 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
442 case SND_SOC_DAIFMT_CBM_CFM:
445 case SND_SOC_DAIFMT_CBS_CFS:
451 /* interface format */
452 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
453 case SND_SOC_DAIFMT_I2S:
456 case SND_SOC_DAIFMT_RIGHT_J:
458 case SND_SOC_DAIFMT_LEFT_J:
461 case SND_SOC_DAIFMT_DSP_A:
464 case SND_SOC_DAIFMT_DSP_B:
471 /* clock inversion */
472 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
473 case SND_SOC_DAIFMT_NB_NF:
475 case SND_SOC_DAIFMT_IB_IF:
478 case SND_SOC_DAIFMT_IB_NF:
481 case SND_SOC_DAIFMT_NB_IF:
489 snd_soc_write(codec, WM8960_IFACE1, iface);
508 static int wm8960_hw_params(struct snd_pcm_substream *substream,
509 struct snd_pcm_hw_params *params,
510 struct snd_soc_dai *dai)
512 struct snd_soc_pcm_runtime *rtd = substream->private_data;
513 struct snd_soc_codec *codec = rtd->codec;
514 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
515 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
519 switch (params_format(params)) {
520 case SNDRV_PCM_FORMAT_S16_LE:
522 case SNDRV_PCM_FORMAT_S20_3LE:
525 case SNDRV_PCM_FORMAT_S24_LE:
530 /* Update filters for the new rate */
531 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
532 wm8960->playback_fs = params_rate(params);
533 wm8960_set_deemph(codec);
535 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
536 if (alc_rates[i].rate == params_rate(params))
537 snd_soc_update_bits(codec,
543 snd_soc_write(codec, WM8960_IFACE1, iface);
547 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
549 struct snd_soc_codec *codec = dai->codec;
550 u16 mute_reg = snd_soc_read(codec, WM8960_DACCTL1) & 0xfff7;
553 snd_soc_write(codec, WM8960_DACCTL1, mute_reg | 0x8);
555 snd_soc_write(codec, WM8960_DACCTL1, mute_reg);
559 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
560 enum snd_soc_bias_level level)
565 case SND_SOC_BIAS_ON:
568 case SND_SOC_BIAS_PREPARE:
569 /* Set VMID to 2x50k */
570 reg = snd_soc_read(codec, WM8960_POWER1);
573 snd_soc_write(codec, WM8960_POWER1, reg);
576 case SND_SOC_BIAS_STANDBY:
577 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
578 /* Enable anti-pop features */
579 snd_soc_write(codec, WM8960_APOP1,
580 WM8960_POBCTRL | WM8960_SOFT_ST |
581 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
583 /* Enable & ramp VMID at 2x50k */
584 reg = snd_soc_read(codec, WM8960_POWER1);
586 snd_soc_write(codec, WM8960_POWER1, reg);
590 snd_soc_write(codec, WM8960_POWER1, reg | WM8960_VREF);
592 /* Disable anti-pop features */
593 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
596 /* Set VMID to 2x250k */
597 reg = snd_soc_read(codec, WM8960_POWER1);
600 snd_soc_write(codec, WM8960_POWER1, reg);
603 case SND_SOC_BIAS_OFF:
604 /* Enable anti-pop features */
605 snd_soc_write(codec, WM8960_APOP1,
606 WM8960_POBCTRL | WM8960_SOFT_ST |
607 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
609 /* Disable VMID and VREF, let them discharge */
610 snd_soc_write(codec, WM8960_POWER1, 0);
615 codec->dapm.bias_level = level;
620 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
621 enum snd_soc_bias_level level)
623 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
627 case SND_SOC_BIAS_ON:
630 case SND_SOC_BIAS_PREPARE:
631 switch (codec->dapm.bias_level) {
632 case SND_SOC_BIAS_STANDBY:
633 /* Enable anti pop mode */
634 snd_soc_update_bits(codec, WM8960_APOP1,
635 WM8960_POBCTRL | WM8960_SOFT_ST |
637 WM8960_POBCTRL | WM8960_SOFT_ST |
640 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
642 if (wm8960->lout1 && wm8960->lout1->power)
643 reg |= WM8960_PWR2_LOUT1;
644 if (wm8960->rout1 && wm8960->rout1->power)
645 reg |= WM8960_PWR2_ROUT1;
646 if (wm8960->out3 && wm8960->out3->power)
647 reg |= WM8960_PWR2_OUT3;
648 snd_soc_update_bits(codec, WM8960_POWER2,
651 WM8960_PWR2_OUT3, reg);
653 /* Enable VMID at 2*50k */
654 snd_soc_update_bits(codec, WM8960_POWER1,
655 WM8960_VMID_MASK, 0x80);
661 snd_soc_update_bits(codec, WM8960_POWER1,
662 WM8960_VREF, WM8960_VREF);
667 case SND_SOC_BIAS_ON:
668 /* Enable anti-pop mode */
669 snd_soc_update_bits(codec, WM8960_APOP1,
670 WM8960_POBCTRL | WM8960_SOFT_ST |
672 WM8960_POBCTRL | WM8960_SOFT_ST |
675 /* Disable VMID and VREF */
676 snd_soc_update_bits(codec, WM8960_POWER1,
677 WM8960_VREF | WM8960_VMID_MASK, 0);
685 case SND_SOC_BIAS_STANDBY:
686 switch (codec->dapm.bias_level) {
687 case SND_SOC_BIAS_PREPARE:
688 /* Disable HP discharge */
689 snd_soc_update_bits(codec, WM8960_APOP2,
690 WM8960_DISOP | WM8960_DRES_MASK,
693 /* Disable anti-pop features */
694 snd_soc_update_bits(codec, WM8960_APOP1,
695 WM8960_POBCTRL | WM8960_SOFT_ST |
697 WM8960_POBCTRL | WM8960_SOFT_ST |
706 case SND_SOC_BIAS_OFF:
710 codec->dapm.bias_level = level;
722 /* The size in bits of the pll divide multiplied by 10
723 * to allow rounding later */
724 #define FIXED_PLL_SIZE ((1 << 24) * 10)
726 static int pll_factors(unsigned int source, unsigned int target,
727 struct _pll_div *pll_div)
729 unsigned long long Kpart;
730 unsigned int K, Ndiv, Nmod;
732 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
734 /* Scale up target to PLL operating frequency */
737 Ndiv = target / source;
740 pll_div->pre_div = 1;
741 Ndiv = target / source;
743 pll_div->pre_div = 0;
745 if ((Ndiv < 6) || (Ndiv > 12)) {
746 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
751 Nmod = target % source;
752 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
754 do_div(Kpart, source);
756 K = Kpart & 0xFFFFFFFF;
758 /* Check if we need to round */
762 /* Move down to proper range now rounding is done */
767 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
768 pll_div->n, pll_div->k, pll_div->pre_div);
773 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
774 int source, unsigned int freq_in, unsigned int freq_out)
776 struct snd_soc_codec *codec = codec_dai->codec;
778 static struct _pll_div pll_div;
781 if (freq_in && freq_out) {
782 ret = pll_factors(freq_in, freq_out, &pll_div);
787 /* Disable the PLL: even if we are changing the frequency the
788 * PLL needs to be disabled while we do so. */
789 snd_soc_write(codec, WM8960_CLOCK1,
790 snd_soc_read(codec, WM8960_CLOCK1) & ~1);
791 snd_soc_write(codec, WM8960_POWER2,
792 snd_soc_read(codec, WM8960_POWER2) & ~1);
794 if (!freq_in || !freq_out)
797 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
798 reg |= pll_div.pre_div << 4;
804 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 18) & 0x3f);
805 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 9) & 0x1ff);
806 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0x1ff);
808 snd_soc_write(codec, WM8960_PLL1, reg);
811 snd_soc_write(codec, WM8960_POWER2,
812 snd_soc_read(codec, WM8960_POWER2) | 1);
814 snd_soc_write(codec, WM8960_CLOCK1,
815 snd_soc_read(codec, WM8960_CLOCK1) | 1);
820 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
823 struct snd_soc_codec *codec = codec_dai->codec;
827 case WM8960_SYSCLKDIV:
828 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
829 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
832 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
833 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
835 case WM8960_OPCLKDIV:
836 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
837 snd_soc_write(codec, WM8960_PLL1, reg | div);
840 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
841 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
843 case WM8960_TOCLKSEL:
844 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
845 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
854 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
855 enum snd_soc_bias_level level)
857 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
859 return wm8960->set_bias_level(codec, level);
862 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
864 #define WM8960_FORMATS \
865 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
866 SNDRV_PCM_FMTBIT_S24_LE)
868 static struct snd_soc_dai_ops wm8960_dai_ops = {
869 .hw_params = wm8960_hw_params,
870 .digital_mute = wm8960_mute,
871 .set_fmt = wm8960_set_dai_fmt,
872 .set_clkdiv = wm8960_set_dai_clkdiv,
873 .set_pll = wm8960_set_dai_pll,
876 static struct snd_soc_dai_driver wm8960_dai = {
877 .name = "wm8960-hifi",
879 .stream_name = "Playback",
882 .rates = WM8960_RATES,
883 .formats = WM8960_FORMATS,},
885 .stream_name = "Capture",
888 .rates = WM8960_RATES,
889 .formats = WM8960_FORMATS,},
890 .ops = &wm8960_dai_ops,
891 .symmetric_rates = 1,
894 static int wm8960_suspend(struct snd_soc_codec *codec, pm_message_t state)
896 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
898 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
902 static int wm8960_resume(struct snd_soc_codec *codec)
904 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
907 u16 *cache = codec->reg_cache;
909 /* Sync reg_cache with the hardware */
910 for (i = 0; i < ARRAY_SIZE(wm8960_reg); i++) {
911 data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
912 data[1] = cache[i] & 0x00ff;
913 codec->hw_write(codec->control_data, data, 2);
916 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
920 static int wm8960_probe(struct snd_soc_codec *codec)
922 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
923 struct wm8960_data *pdata = dev_get_platdata(codec->dev);
927 wm8960->set_bias_level = wm8960_set_bias_level_out3;
928 codec->control_data = wm8960->control_data;
931 dev_warn(codec->dev, "No platform data supplied\n");
933 if (pdata->dres > WM8960_DRES_MAX) {
934 dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
939 wm8960->set_bias_level = wm8960_set_bias_level_capless;
942 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8960->control_type);
944 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
948 ret = wm8960_reset(codec);
950 dev_err(codec->dev, "Failed to issue reset\n");
954 wm8960->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
956 /* Latch the update bits */
957 reg = snd_soc_read(codec, WM8960_LINVOL);
958 snd_soc_write(codec, WM8960_LINVOL, reg | 0x100);
959 reg = snd_soc_read(codec, WM8960_RINVOL);
960 snd_soc_write(codec, WM8960_RINVOL, reg | 0x100);
961 reg = snd_soc_read(codec, WM8960_LADC);
962 snd_soc_write(codec, WM8960_LADC, reg | 0x100);
963 reg = snd_soc_read(codec, WM8960_RADC);
964 snd_soc_write(codec, WM8960_RADC, reg | 0x100);
965 reg = snd_soc_read(codec, WM8960_LDAC);
966 snd_soc_write(codec, WM8960_LDAC, reg | 0x100);
967 reg = snd_soc_read(codec, WM8960_RDAC);
968 snd_soc_write(codec, WM8960_RDAC, reg | 0x100);
969 reg = snd_soc_read(codec, WM8960_LOUT1);
970 snd_soc_write(codec, WM8960_LOUT1, reg | 0x100);
971 reg = snd_soc_read(codec, WM8960_ROUT1);
972 snd_soc_write(codec, WM8960_ROUT1, reg | 0x100);
973 reg = snd_soc_read(codec, WM8960_LOUT2);
974 snd_soc_write(codec, WM8960_LOUT2, reg | 0x100);
975 reg = snd_soc_read(codec, WM8960_ROUT2);
976 snd_soc_write(codec, WM8960_ROUT2, reg | 0x100);
978 snd_soc_add_controls(codec, wm8960_snd_controls,
979 ARRAY_SIZE(wm8960_snd_controls));
980 wm8960_add_widgets(codec);
985 /* power down chip */
986 static int wm8960_remove(struct snd_soc_codec *codec)
988 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
990 wm8960->set_bias_level(codec, SND_SOC_BIAS_OFF);
994 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
995 .probe = wm8960_probe,
996 .remove = wm8960_remove,
997 .suspend = wm8960_suspend,
998 .resume = wm8960_resume,
999 .set_bias_level = wm8960_set_bias_level,
1000 .reg_cache_size = ARRAY_SIZE(wm8960_reg),
1001 .reg_word_size = sizeof(u16),
1002 .reg_cache_default = wm8960_reg,
1005 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1006 static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
1007 const struct i2c_device_id *id)
1009 struct wm8960_priv *wm8960;
1012 wm8960 = kzalloc(sizeof(struct wm8960_priv), GFP_KERNEL);
1016 i2c_set_clientdata(i2c, wm8960);
1017 wm8960->control_type = SND_SOC_I2C;
1018 wm8960->control_data = i2c;
1020 ret = snd_soc_register_codec(&i2c->dev,
1021 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1027 static __devexit int wm8960_i2c_remove(struct i2c_client *client)
1029 snd_soc_unregister_codec(&client->dev);
1030 kfree(i2c_get_clientdata(client));
1034 static const struct i2c_device_id wm8960_i2c_id[] = {
1038 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1040 static struct i2c_driver wm8960_i2c_driver = {
1042 .name = "wm8960-codec",
1043 .owner = THIS_MODULE,
1045 .probe = wm8960_i2c_probe,
1046 .remove = __devexit_p(wm8960_i2c_remove),
1047 .id_table = wm8960_i2c_id,
1051 static int __init wm8960_modinit(void)
1054 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1055 ret = i2c_add_driver(&wm8960_i2c_driver);
1057 printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n",
1063 module_init(wm8960_modinit);
1065 static void __exit wm8960_exit(void)
1067 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1068 i2c_del_driver(&wm8960_i2c_driver);
1071 module_exit(wm8960_exit);
1073 MODULE_DESCRIPTION("ASoC WM8960 driver");
1074 MODULE_AUTHOR("Liam Girdwood");
1075 MODULE_LICENSE("GPL");