2 * wm8960.c -- WM8960 ALSA SoC Audio driver
4 * Copyright 2007-11 Wolfson Microelectronics, plc
6 * Author: Liam Girdwood
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.
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
18 #include <linux/clk.h>
19 #include <linux/i2c.h>
20 #include <linux/slab.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/pcm_params.h>
24 #include <sound/soc.h>
25 #include <sound/initval.h>
26 #include <sound/tlv.h>
27 #include <sound/wm8960.h>
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 struct reg_default wm8960_reg_defaults[] = {
110 static bool wm8960_volatile(struct device *dev, unsigned int reg)
122 struct regmap *regmap;
123 int (*set_bias_level)(struct snd_soc_codec *,
124 enum snd_soc_bias_level level);
125 struct snd_soc_dapm_widget *lout1;
126 struct snd_soc_dapm_widget *rout1;
127 struct snd_soc_dapm_widget *out3;
132 struct wm8960_data pdata;
135 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
137 /* enumerated controls */
138 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
139 "Right Inverted", "Stereo Inversion"};
140 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
141 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
142 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
143 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
145 static const struct soc_enum wm8960_enum[] = {
146 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
147 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
148 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
149 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
150 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
151 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
154 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
156 static int wm8960_set_deemph(struct snd_soc_codec *codec)
158 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
161 /* If we're using deemphasis select the nearest available sample
164 if (wm8960->deemph) {
166 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
167 if (abs(deemph_settings[i] - wm8960->playback_fs) <
168 abs(deemph_settings[best] - wm8960->playback_fs))
177 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
179 return snd_soc_update_bits(codec, WM8960_DACCTL1,
183 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
184 struct snd_ctl_elem_value *ucontrol)
186 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
187 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
189 ucontrol->value.integer.value[0] = wm8960->deemph;
193 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
194 struct snd_ctl_elem_value *ucontrol)
196 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
197 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
198 int deemph = ucontrol->value.integer.value[0];
203 wm8960->deemph = deemph;
205 return wm8960_set_deemph(codec);
208 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
209 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
210 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
211 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
212 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
214 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
215 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
217 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
219 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
222 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
223 WM8960_INBMIX1, 4, 7, 0, boost_tlv),
224 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
225 WM8960_INBMIX1, 1, 7, 0, boost_tlv),
226 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
227 WM8960_INBMIX2, 4, 7, 0, boost_tlv),
228 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
229 WM8960_INBMIX2, 1, 7, 0, boost_tlv),
231 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
234 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
236 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
239 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
241 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
243 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
244 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
246 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
247 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
248 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
250 SOC_ENUM("DAC Polarity", wm8960_enum[1]),
251 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
252 wm8960_get_deemph, wm8960_put_deemph),
254 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
255 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
256 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
257 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
259 SOC_ENUM("ALC Function", wm8960_enum[4]),
260 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
261 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
262 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
263 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
264 SOC_ENUM("ALC Mode", wm8960_enum[5]),
265 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
266 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
268 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
269 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
271 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
274 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
275 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
276 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
277 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
278 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
279 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
280 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
281 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
284 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
285 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
286 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
287 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
290 static const struct snd_kcontrol_new wm8960_lin[] = {
291 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
294 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
295 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
296 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
297 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
300 static const struct snd_kcontrol_new wm8960_rin[] = {
301 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
304 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
305 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
306 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
307 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
310 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
311 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
312 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
313 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
316 static const struct snd_kcontrol_new wm8960_mono_out[] = {
317 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
318 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
321 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
322 SND_SOC_DAPM_INPUT("LINPUT1"),
323 SND_SOC_DAPM_INPUT("RINPUT1"),
324 SND_SOC_DAPM_INPUT("LINPUT2"),
325 SND_SOC_DAPM_INPUT("RINPUT2"),
326 SND_SOC_DAPM_INPUT("LINPUT3"),
327 SND_SOC_DAPM_INPUT("RINPUT3"),
329 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
331 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
332 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
333 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
334 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
336 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
337 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
338 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
339 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
341 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
342 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
344 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
345 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
347 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
348 &wm8960_loutput_mixer[0],
349 ARRAY_SIZE(wm8960_loutput_mixer)),
350 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
351 &wm8960_routput_mixer[0],
352 ARRAY_SIZE(wm8960_routput_mixer)),
354 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
355 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
357 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
358 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
360 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
361 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
363 SND_SOC_DAPM_OUTPUT("SPK_LP"),
364 SND_SOC_DAPM_OUTPUT("SPK_LN"),
365 SND_SOC_DAPM_OUTPUT("HP_L"),
366 SND_SOC_DAPM_OUTPUT("HP_R"),
367 SND_SOC_DAPM_OUTPUT("SPK_RP"),
368 SND_SOC_DAPM_OUTPUT("SPK_RN"),
369 SND_SOC_DAPM_OUTPUT("OUT3"),
372 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
373 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
375 ARRAY_SIZE(wm8960_mono_out)),
378 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
379 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
380 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
383 static const struct snd_soc_dapm_route audio_paths[] = {
384 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
385 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
386 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
388 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
389 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */
390 { "Left Input Mixer", NULL, "LINPUT2" },
391 { "Left Input Mixer", NULL, "LINPUT3" },
393 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
394 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
395 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
397 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
398 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */
399 { "Right Input Mixer", NULL, "RINPUT2" },
400 { "Right Input Mixer", NULL, "RINPUT3" },
402 { "Left ADC", NULL, "Left Input Mixer" },
403 { "Right ADC", NULL, "Right Input Mixer" },
405 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
406 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
407 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
409 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
410 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
411 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
413 { "LOUT1 PGA", NULL, "Left Output Mixer" },
414 { "ROUT1 PGA", NULL, "Right Output Mixer" },
416 { "HP_L", NULL, "LOUT1 PGA" },
417 { "HP_R", NULL, "ROUT1 PGA" },
419 { "Left Speaker PGA", NULL, "Left Output Mixer" },
420 { "Right Speaker PGA", NULL, "Right Output Mixer" },
422 { "Left Speaker Output", NULL, "Left Speaker PGA" },
423 { "Right Speaker Output", NULL, "Right Speaker PGA" },
425 { "SPK_LN", NULL, "Left Speaker Output" },
426 { "SPK_LP", NULL, "Left Speaker Output" },
427 { "SPK_RN", NULL, "Right Speaker Output" },
428 { "SPK_RP", NULL, "Right Speaker Output" },
431 static const struct snd_soc_dapm_route audio_paths_out3[] = {
432 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
433 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
435 { "OUT3", NULL, "Mono Output Mixer", }
438 static const struct snd_soc_dapm_route audio_paths_capless[] = {
439 { "HP_L", NULL, "OUT3 VMID" },
440 { "HP_R", NULL, "OUT3 VMID" },
442 { "OUT3 VMID", NULL, "Left Output Mixer" },
443 { "OUT3 VMID", NULL, "Right Output Mixer" },
446 static int wm8960_add_widgets(struct snd_soc_codec *codec)
448 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
449 struct wm8960_data *pdata = &wm8960->pdata;
450 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
451 struct snd_soc_dapm_widget *w;
453 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
454 ARRAY_SIZE(wm8960_dapm_widgets));
456 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
458 /* In capless mode OUT3 is used to provide VMID for the
459 * headphone outputs, otherwise it is used as a mono mixer.
461 if (pdata && pdata->capless) {
462 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
463 ARRAY_SIZE(wm8960_dapm_widgets_capless));
465 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
466 ARRAY_SIZE(audio_paths_capless));
468 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
469 ARRAY_SIZE(wm8960_dapm_widgets_out3));
471 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
472 ARRAY_SIZE(audio_paths_out3));
475 /* We need to power up the headphone output stage out of
476 * sequence for capless mode. To save scanning the widget
477 * list each time to find the desired power state do so now
478 * and save the result.
480 list_for_each_entry(w, &codec->component.card->widgets, list) {
483 if (strcmp(w->name, "LOUT1 PGA") == 0)
485 if (strcmp(w->name, "ROUT1 PGA") == 0)
487 if (strcmp(w->name, "OUT3 VMID") == 0)
494 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
497 struct snd_soc_codec *codec = codec_dai->codec;
500 /* set master/slave audio interface */
501 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
502 case SND_SOC_DAIFMT_CBM_CFM:
505 case SND_SOC_DAIFMT_CBS_CFS:
511 /* interface format */
512 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
513 case SND_SOC_DAIFMT_I2S:
516 case SND_SOC_DAIFMT_RIGHT_J:
518 case SND_SOC_DAIFMT_LEFT_J:
521 case SND_SOC_DAIFMT_DSP_A:
524 case SND_SOC_DAIFMT_DSP_B:
531 /* clock inversion */
532 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
533 case SND_SOC_DAIFMT_NB_NF:
535 case SND_SOC_DAIFMT_IB_IF:
538 case SND_SOC_DAIFMT_IB_NF:
541 case SND_SOC_DAIFMT_NB_IF:
549 snd_soc_write(codec, WM8960_IFACE1, iface);
568 /* Multiply 256 for internal 256 div */
569 static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 };
571 /* Multiply 10 to eliminate decimials */
572 static const int bclk_divs[] = {
573 10, 15, 20, 30, 40, 55, 60, 80, 110,
574 120, 160, 220, 240, 320, 320, 320
577 static void wm8960_configure_clocking(struct snd_soc_codec *codec,
580 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
581 u16 iface1 = snd_soc_read(codec, WM8960_IFACE1);
582 u16 iface2 = snd_soc_read(codec, WM8960_IFACE2);
586 if (!(iface1 & (1<<6))) {
588 "Codec is slave mode, no need to configure clock\n");
592 if (!wm8960->sysclk) {
593 dev_dbg(codec->dev, "No SYSCLK configured\n");
597 if (!wm8960->bclk || !lrclk) {
598 dev_dbg(codec->dev, "No audio clocks configured\n");
602 for (i = 0; i < ARRAY_SIZE(dac_divs); ++i) {
603 if (wm8960->sysclk == lrclk * dac_divs[i]) {
604 for (j = 0; j < ARRAY_SIZE(bclk_divs); ++j) {
605 sysclk = wm8960->bclk * bclk_divs[j] / 10;
606 if (wm8960->sysclk == sysclk)
609 if(j != ARRAY_SIZE(bclk_divs))
614 if (i == ARRAY_SIZE(dac_divs)) {
615 dev_err(codec->dev, "Unsupported sysclk %d\n", wm8960->sysclk);
620 * configure frame clock. If ADCLRC configure as GPIO pin, DACLRC
621 * pin is used as a frame clock for ADCs and DACs.
624 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, i << 3);
626 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, i << 3);
628 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 6, i << 6);
630 /* configure bit clock */
631 snd_soc_update_bits(codec, WM8960_CLOCK2, 0xf, j);
634 static int wm8960_hw_params(struct snd_pcm_substream *substream,
635 struct snd_pcm_hw_params *params,
636 struct snd_soc_dai *dai)
638 struct snd_soc_codec *codec = dai->codec;
639 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
640 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
641 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
644 wm8960->bclk = snd_soc_params_to_bclk(params);
645 if (params_channels(params) == 1)
649 switch (params_width(params)) {
659 /* right justify mode does not support 32 word length */
660 if ((iface & 0x3) != 0) {
665 dev_err(codec->dev, "unsupported width %d\n",
666 params_width(params));
670 /* Update filters for the new rate */
671 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
672 wm8960->playback_fs = params_rate(params);
673 wm8960_set_deemph(codec);
675 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
676 if (alc_rates[i].rate == params_rate(params))
677 snd_soc_update_bits(codec,
683 snd_soc_write(codec, WM8960_IFACE1, iface);
685 wm8960_configure_clocking(codec, tx, params_rate(params));
690 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
692 struct snd_soc_codec *codec = dai->codec;
695 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
697 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
701 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
702 enum snd_soc_bias_level level)
704 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
708 case SND_SOC_BIAS_ON:
711 case SND_SOC_BIAS_PREPARE:
712 switch (snd_soc_codec_get_bias_level(codec)) {
713 case SND_SOC_BIAS_STANDBY:
714 if (!IS_ERR(wm8960->mclk)) {
715 ret = clk_prepare_enable(wm8960->mclk);
718 "Failed to enable MCLK: %d\n",
724 /* Set VMID to 2x50k */
725 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
728 case SND_SOC_BIAS_ON:
729 if (!IS_ERR(wm8960->mclk))
730 clk_disable_unprepare(wm8960->mclk);
739 case SND_SOC_BIAS_STANDBY:
740 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
741 regcache_sync(wm8960->regmap);
743 /* Enable anti-pop features */
744 snd_soc_write(codec, WM8960_APOP1,
745 WM8960_POBCTRL | WM8960_SOFT_ST |
746 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
748 /* Enable & ramp VMID at 2x50k */
749 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
753 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
756 /* Disable anti-pop features */
757 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
760 /* Set VMID to 2x250k */
761 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
764 case SND_SOC_BIAS_OFF:
765 /* Enable anti-pop features */
766 snd_soc_write(codec, WM8960_APOP1,
767 WM8960_POBCTRL | WM8960_SOFT_ST |
768 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
770 /* Disable VMID and VREF, let them discharge */
771 snd_soc_write(codec, WM8960_POWER1, 0);
779 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
780 enum snd_soc_bias_level level)
782 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
786 case SND_SOC_BIAS_ON:
789 case SND_SOC_BIAS_PREPARE:
790 switch (snd_soc_codec_get_bias_level(codec)) {
791 case SND_SOC_BIAS_STANDBY:
792 /* Enable anti pop mode */
793 snd_soc_update_bits(codec, WM8960_APOP1,
794 WM8960_POBCTRL | WM8960_SOFT_ST |
796 WM8960_POBCTRL | WM8960_SOFT_ST |
799 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
801 if (wm8960->lout1 && wm8960->lout1->power)
802 reg |= WM8960_PWR2_LOUT1;
803 if (wm8960->rout1 && wm8960->rout1->power)
804 reg |= WM8960_PWR2_ROUT1;
805 if (wm8960->out3 && wm8960->out3->power)
806 reg |= WM8960_PWR2_OUT3;
807 snd_soc_update_bits(codec, WM8960_POWER2,
810 WM8960_PWR2_OUT3, reg);
812 /* Enable VMID at 2*50k */
813 snd_soc_update_bits(codec, WM8960_POWER1,
814 WM8960_VMID_MASK, 0x80);
820 snd_soc_update_bits(codec, WM8960_POWER1,
821 WM8960_VREF, WM8960_VREF);
825 if (!IS_ERR(wm8960->mclk)) {
826 ret = clk_prepare_enable(wm8960->mclk);
829 "Failed to enable MCLK: %d\n",
836 case SND_SOC_BIAS_ON:
837 if (!IS_ERR(wm8960->mclk))
838 clk_disable_unprepare(wm8960->mclk);
840 /* Enable anti-pop mode */
841 snd_soc_update_bits(codec, WM8960_APOP1,
842 WM8960_POBCTRL | WM8960_SOFT_ST |
844 WM8960_POBCTRL | WM8960_SOFT_ST |
847 /* Disable VMID and VREF */
848 snd_soc_update_bits(codec, WM8960_POWER1,
849 WM8960_VREF | WM8960_VMID_MASK, 0);
852 case SND_SOC_BIAS_OFF:
853 regcache_sync(wm8960->regmap);
860 case SND_SOC_BIAS_STANDBY:
861 switch (snd_soc_codec_get_bias_level(codec)) {
862 case SND_SOC_BIAS_PREPARE:
863 /* Disable HP discharge */
864 snd_soc_update_bits(codec, WM8960_APOP2,
865 WM8960_DISOP | WM8960_DRES_MASK,
868 /* Disable anti-pop features */
869 snd_soc_update_bits(codec, WM8960_APOP1,
870 WM8960_POBCTRL | WM8960_SOFT_ST |
872 WM8960_POBCTRL | WM8960_SOFT_ST |
881 case SND_SOC_BIAS_OFF:
895 /* The size in bits of the pll divide multiplied by 10
896 * to allow rounding later */
897 #define FIXED_PLL_SIZE ((1 << 24) * 10)
899 static int pll_factors(unsigned int source, unsigned int target,
900 struct _pll_div *pll_div)
902 unsigned long long Kpart;
903 unsigned int K, Ndiv, Nmod;
905 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
907 /* Scale up target to PLL operating frequency */
910 Ndiv = target / source;
913 pll_div->pre_div = 1;
914 Ndiv = target / source;
916 pll_div->pre_div = 0;
918 if ((Ndiv < 6) || (Ndiv > 12)) {
919 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
924 Nmod = target % source;
925 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
927 do_div(Kpart, source);
929 K = Kpart & 0xFFFFFFFF;
931 /* Check if we need to round */
935 /* Move down to proper range now rounding is done */
940 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
941 pll_div->n, pll_div->k, pll_div->pre_div);
946 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
947 int source, unsigned int freq_in, unsigned int freq_out)
949 struct snd_soc_codec *codec = codec_dai->codec;
951 static struct _pll_div pll_div;
954 if (freq_in && freq_out) {
955 ret = pll_factors(freq_in, freq_out, &pll_div);
960 /* Disable the PLL: even if we are changing the frequency the
961 * PLL needs to be disabled while we do so. */
962 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
963 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
965 if (!freq_in || !freq_out)
968 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
969 reg |= pll_div.pre_div << 4;
975 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
976 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
977 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff);
979 snd_soc_write(codec, WM8960_PLL1, reg);
982 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
984 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
989 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
992 struct snd_soc_codec *codec = codec_dai->codec;
996 case WM8960_SYSCLKDIV:
997 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
998 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
1001 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
1002 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
1004 case WM8960_OPCLKDIV:
1005 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
1006 snd_soc_write(codec, WM8960_PLL1, reg | div);
1008 case WM8960_DCLKDIV:
1009 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
1010 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
1012 case WM8960_TOCLKSEL:
1013 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
1014 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
1023 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
1024 enum snd_soc_bias_level level)
1026 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1028 return wm8960->set_bias_level(codec, level);
1031 static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1032 unsigned int freq, int dir)
1034 struct snd_soc_codec *codec = dai->codec;
1035 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1038 case WM8960_SYSCLK_MCLK:
1039 snd_soc_update_bits(codec, WM8960_CLOCK1,
1040 0x1, WM8960_SYSCLK_MCLK);
1042 case WM8960_SYSCLK_PLL:
1043 snd_soc_update_bits(codec, WM8960_CLOCK1,
1044 0x1, WM8960_SYSCLK_PLL);
1050 wm8960->sysclk = freq;
1055 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
1057 #define WM8960_FORMATS \
1058 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1059 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1061 static const struct snd_soc_dai_ops wm8960_dai_ops = {
1062 .hw_params = wm8960_hw_params,
1063 .digital_mute = wm8960_mute,
1064 .set_fmt = wm8960_set_dai_fmt,
1065 .set_clkdiv = wm8960_set_dai_clkdiv,
1066 .set_pll = wm8960_set_dai_pll,
1067 .set_sysclk = wm8960_set_dai_sysclk,
1070 static struct snd_soc_dai_driver wm8960_dai = {
1071 .name = "wm8960-hifi",
1073 .stream_name = "Playback",
1076 .rates = WM8960_RATES,
1077 .formats = WM8960_FORMATS,},
1079 .stream_name = "Capture",
1082 .rates = WM8960_RATES,
1083 .formats = WM8960_FORMATS,},
1084 .ops = &wm8960_dai_ops,
1085 .symmetric_rates = 1,
1088 static int wm8960_probe(struct snd_soc_codec *codec)
1090 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1091 struct wm8960_data *pdata = &wm8960->pdata;
1094 wm8960->set_bias_level = wm8960_set_bias_level_capless;
1096 wm8960->set_bias_level = wm8960_set_bias_level_out3;
1098 snd_soc_add_codec_controls(codec, wm8960_snd_controls,
1099 ARRAY_SIZE(wm8960_snd_controls));
1100 wm8960_add_widgets(codec);
1105 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1106 .probe = wm8960_probe,
1107 .set_bias_level = wm8960_set_bias_level,
1108 .suspend_bias_off = true,
1111 static const struct regmap_config wm8960_regmap = {
1114 .max_register = WM8960_PLL4,
1116 .reg_defaults = wm8960_reg_defaults,
1117 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1118 .cache_type = REGCACHE_RBTREE,
1120 .volatile_reg = wm8960_volatile,
1123 static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
1124 struct wm8960_data *pdata)
1126 const struct device_node *np = i2c->dev.of_node;
1128 if (of_property_read_bool(np, "wlf,capless"))
1129 pdata->capless = true;
1131 if (of_property_read_bool(np, "wlf,shared-lrclk"))
1132 pdata->shared_lrclk = true;
1135 static int wm8960_i2c_probe(struct i2c_client *i2c,
1136 const struct i2c_device_id *id)
1138 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1139 struct wm8960_priv *wm8960;
1142 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1147 wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
1148 if (IS_ERR(wm8960->mclk)) {
1149 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
1150 return -EPROBE_DEFER;
1153 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1154 if (IS_ERR(wm8960->regmap))
1155 return PTR_ERR(wm8960->regmap);
1158 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1159 else if (i2c->dev.of_node)
1160 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1162 ret = wm8960_reset(wm8960->regmap);
1164 dev_err(&i2c->dev, "Failed to issue reset\n");
1168 if (wm8960->pdata.shared_lrclk) {
1169 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1172 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1178 /* Latch the update bits */
1179 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1180 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1181 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1182 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1183 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1184 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1185 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1186 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1187 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1188 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1190 i2c_set_clientdata(i2c, wm8960);
1192 ret = snd_soc_register_codec(&i2c->dev,
1193 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1198 static int wm8960_i2c_remove(struct i2c_client *client)
1200 snd_soc_unregister_codec(&client->dev);
1204 static const struct i2c_device_id wm8960_i2c_id[] = {
1208 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1210 static const struct of_device_id wm8960_of_match[] = {
1211 { .compatible = "wlf,wm8960", },
1214 MODULE_DEVICE_TABLE(of, wm8960_of_match);
1216 static struct i2c_driver wm8960_i2c_driver = {
1219 .owner = THIS_MODULE,
1220 .of_match_table = wm8960_of_match,
1222 .probe = wm8960_i2c_probe,
1223 .remove = wm8960_i2c_remove,
1224 .id_table = wm8960_i2c_id,
1227 module_i2c_driver(wm8960_i2c_driver);
1229 MODULE_DESCRIPTION("ASoC WM8960 driver");
1230 MODULE_AUTHOR("Liam Girdwood");
1231 MODULE_LICENSE("GPL");