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/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>
31 #define WM8960_VMID_MASK 0x180
32 #define WM8960_VREF 0x40
35 #define WM8960_PWR2_LOUT1 0x40
36 #define WM8960_PWR2_ROUT1 0x20
37 #define WM8960_PWR2_OUT3 0x02
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
46 /* R29 - Anti-pop 2 */
47 #define WM8960_DISOP 0x40
48 #define WM8960_DRES_MASK 0x30
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.
55 static const struct reg_default wm8960_reg_defaults
[] = {
109 static bool wm8960_volatile(struct device
*dev
, unsigned int reg
)
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
;
128 struct wm8960_data pdata
;
131 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
133 /* enumerated controls */
134 static const char *wm8960_polarity
[] = {"No Inversion", "Left Inverted",
135 "Right Inverted", "Stereo Inversion"};
136 static const char *wm8960_3d_upper_cutoff
[] = {"High", "Low"};
137 static const char *wm8960_3d_lower_cutoff
[] = {"Low", "High"};
138 static const char *wm8960_alcfunc
[] = {"Off", "Right", "Left", "Stereo"};
139 static const char *wm8960_alcmode
[] = {"ALC", "Limiter"};
141 static const struct soc_enum wm8960_enum
[] = {
142 SOC_ENUM_SINGLE(WM8960_DACCTL1
, 5, 4, wm8960_polarity
),
143 SOC_ENUM_SINGLE(WM8960_DACCTL2
, 5, 4, wm8960_polarity
),
144 SOC_ENUM_SINGLE(WM8960_3D
, 6, 2, wm8960_3d_upper_cutoff
),
145 SOC_ENUM_SINGLE(WM8960_3D
, 5, 2, wm8960_3d_lower_cutoff
),
146 SOC_ENUM_SINGLE(WM8960_ALC1
, 7, 4, wm8960_alcfunc
),
147 SOC_ENUM_SINGLE(WM8960_ALC3
, 8, 2, wm8960_alcmode
),
150 static const int deemph_settings
[] = { 0, 32000, 44100, 48000 };
152 static int wm8960_set_deemph(struct snd_soc_codec
*codec
)
154 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
157 /* If we're using deemphasis select the nearest available sample
160 if (wm8960
->deemph
) {
162 for (i
= 2; i
< ARRAY_SIZE(deemph_settings
); i
++) {
163 if (abs(deemph_settings
[i
] - wm8960
->playback_fs
) <
164 abs(deemph_settings
[best
] - wm8960
->playback_fs
))
173 dev_dbg(codec
->dev
, "Set deemphasis %d\n", val
);
175 return snd_soc_update_bits(codec
, WM8960_DACCTL1
,
179 static int wm8960_get_deemph(struct snd_kcontrol
*kcontrol
,
180 struct snd_ctl_elem_value
*ucontrol
)
182 struct snd_soc_codec
*codec
= snd_soc_kcontrol_codec(kcontrol
);
183 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
185 ucontrol
->value
.enumerated
.item
[0] = wm8960
->deemph
;
189 static int wm8960_put_deemph(struct snd_kcontrol
*kcontrol
,
190 struct snd_ctl_elem_value
*ucontrol
)
192 struct snd_soc_codec
*codec
= snd_soc_kcontrol_codec(kcontrol
);
193 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
194 int deemph
= ucontrol
->value
.enumerated
.item
[0];
199 wm8960
->deemph
= deemph
;
201 return wm8960_set_deemph(codec
);
204 static const DECLARE_TLV_DB_SCALE(adc_tlv
, -9700, 50, 0);
205 static const DECLARE_TLV_DB_SCALE(dac_tlv
, -12700, 50, 1);
206 static const DECLARE_TLV_DB_SCALE(bypass_tlv
, -2100, 300, 0);
207 static const DECLARE_TLV_DB_SCALE(out_tlv
, -12100, 100, 1);
208 static const DECLARE_TLV_DB_SCALE(boost_tlv
, -1200, 300, 1);
210 static const struct snd_kcontrol_new wm8960_snd_controls
[] = {
211 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL
, WM8960_RINVOL
,
213 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL
, WM8960_RINVOL
,
215 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL
, WM8960_RINVOL
,
218 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
219 WM8960_INBMIX1
, 4, 7, 0, boost_tlv
),
220 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
221 WM8960_INBMIX1
, 1, 7, 0, boost_tlv
),
222 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
223 WM8960_INBMIX2
, 4, 7, 0, boost_tlv
),
224 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
225 WM8960_INBMIX2
, 1, 7, 0, boost_tlv
),
227 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC
, WM8960_RDAC
,
230 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1
, WM8960_ROUT1
,
232 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1
, WM8960_ROUT1
,
235 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2
, WM8960_ROUT2
,
237 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2
, WM8960_ROUT2
,
239 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3
, 3, 5, 0),
240 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3
, 0, 5, 0),
242 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1
, 7, 1, 0),
243 SOC_ENUM("ADC Polarity", wm8960_enum
[0]),
244 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1
, 0, 1, 0),
246 SOC_ENUM("DAC Polarity", wm8960_enum
[2]),
247 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
248 wm8960_get_deemph
, wm8960_put_deemph
),
250 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum
[2]),
251 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum
[3]),
252 SOC_SINGLE("3D Volume", WM8960_3D
, 1, 15, 0),
253 SOC_SINGLE("3D Switch", WM8960_3D
, 0, 1, 0),
255 SOC_ENUM("ALC Function", wm8960_enum
[4]),
256 SOC_SINGLE("ALC Max Gain", WM8960_ALC1
, 4, 7, 0),
257 SOC_SINGLE("ALC Target", WM8960_ALC1
, 0, 15, 1),
258 SOC_SINGLE("ALC Min Gain", WM8960_ALC2
, 4, 7, 0),
259 SOC_SINGLE("ALC Hold Time", WM8960_ALC2
, 0, 15, 0),
260 SOC_ENUM("ALC Mode", wm8960_enum
[5]),
261 SOC_SINGLE("ALC Decay", WM8960_ALC3
, 4, 15, 0),
262 SOC_SINGLE("ALC Attack", WM8960_ALC3
, 0, 15, 0),
264 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG
, 3, 31, 0),
265 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG
, 0, 1, 0),
267 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC
, WM8960_RADC
,
270 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
271 WM8960_BYPASS1
, 4, 7, 1, bypass_tlv
),
272 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
273 WM8960_LOUTMIX
, 4, 7, 1, bypass_tlv
),
274 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
275 WM8960_BYPASS2
, 4, 7, 1, bypass_tlv
),
276 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
277 WM8960_ROUTMIX
, 4, 7, 1, bypass_tlv
),
280 static const struct snd_kcontrol_new wm8960_lin_boost
[] = {
281 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH
, 6, 1, 0),
282 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH
, 7, 1, 0),
283 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH
, 8, 1, 0),
286 static const struct snd_kcontrol_new wm8960_lin
[] = {
287 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH
, 3, 1, 0),
290 static const struct snd_kcontrol_new wm8960_rin_boost
[] = {
291 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH
, 6, 1, 0),
292 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH
, 7, 1, 0),
293 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH
, 8, 1, 0),
296 static const struct snd_kcontrol_new wm8960_rin
[] = {
297 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH
, 3, 1, 0),
300 static const struct snd_kcontrol_new wm8960_loutput_mixer
[] = {
301 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX
, 8, 1, 0),
302 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX
, 7, 1, 0),
303 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1
, 7, 1, 0),
306 static const struct snd_kcontrol_new wm8960_routput_mixer
[] = {
307 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX
, 8, 1, 0),
308 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX
, 7, 1, 0),
309 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2
, 7, 1, 0),
312 static const struct snd_kcontrol_new wm8960_mono_out
[] = {
313 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1
, 7, 1, 0),
314 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2
, 7, 1, 0),
317 static const struct snd_soc_dapm_widget wm8960_dapm_widgets
[] = {
318 SND_SOC_DAPM_INPUT("LINPUT1"),
319 SND_SOC_DAPM_INPUT("RINPUT1"),
320 SND_SOC_DAPM_INPUT("LINPUT2"),
321 SND_SOC_DAPM_INPUT("RINPUT2"),
322 SND_SOC_DAPM_INPUT("LINPUT3"),
323 SND_SOC_DAPM_INPUT("RINPUT3"),
325 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1
, 1, 0, NULL
, 0),
327 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1
, 5, 0,
328 wm8960_lin_boost
, ARRAY_SIZE(wm8960_lin_boost
)),
329 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1
, 4, 0,
330 wm8960_rin_boost
, ARRAY_SIZE(wm8960_rin_boost
)),
332 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3
, 5, 0,
333 wm8960_lin
, ARRAY_SIZE(wm8960_lin
)),
334 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3
, 4, 0,
335 wm8960_rin
, ARRAY_SIZE(wm8960_rin
)),
337 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1
, 3, 0),
338 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1
, 2, 0),
340 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2
, 8, 0),
341 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2
, 7, 0),
343 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3
, 3, 0,
344 &wm8960_loutput_mixer
[0],
345 ARRAY_SIZE(wm8960_loutput_mixer
)),
346 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3
, 2, 0,
347 &wm8960_routput_mixer
[0],
348 ARRAY_SIZE(wm8960_routput_mixer
)),
350 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2
, 6, 0, NULL
, 0),
351 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2
, 5, 0, NULL
, 0),
353 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2
, 4, 0, NULL
, 0),
354 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2
, 3, 0, NULL
, 0),
356 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1
, 7, 0, NULL
, 0),
357 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1
, 6, 0, NULL
, 0),
359 SND_SOC_DAPM_OUTPUT("SPK_LP"),
360 SND_SOC_DAPM_OUTPUT("SPK_LN"),
361 SND_SOC_DAPM_OUTPUT("HP_L"),
362 SND_SOC_DAPM_OUTPUT("HP_R"),
363 SND_SOC_DAPM_OUTPUT("SPK_RP"),
364 SND_SOC_DAPM_OUTPUT("SPK_RN"),
365 SND_SOC_DAPM_OUTPUT("OUT3"),
368 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3
[] = {
369 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2
, 1, 0,
371 ARRAY_SIZE(wm8960_mono_out
)),
374 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
375 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless
[] = {
376 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2
, 1, 0, NULL
, 0),
379 static const struct snd_soc_dapm_route audio_paths
[] = {
380 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
381 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
382 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
384 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
385 { "Left Input Mixer", NULL
, "LINPUT1", }, /* Really Boost Switch */
386 { "Left Input Mixer", NULL
, "LINPUT2" },
387 { "Left Input Mixer", NULL
, "LINPUT3" },
389 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
390 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
391 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
393 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
394 { "Right Input Mixer", NULL
, "RINPUT1", }, /* Really Boost Switch */
395 { "Right Input Mixer", NULL
, "RINPUT2" },
396 { "Right Input Mixer", NULL
, "LINPUT3" },
398 { "Left ADC", NULL
, "Left Input Mixer" },
399 { "Right ADC", NULL
, "Right Input Mixer" },
401 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
402 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
403 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
405 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
406 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
407 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
409 { "LOUT1 PGA", NULL
, "Left Output Mixer" },
410 { "ROUT1 PGA", NULL
, "Right Output Mixer" },
412 { "HP_L", NULL
, "LOUT1 PGA" },
413 { "HP_R", NULL
, "ROUT1 PGA" },
415 { "Left Speaker PGA", NULL
, "Left Output Mixer" },
416 { "Right Speaker PGA", NULL
, "Right Output Mixer" },
418 { "Left Speaker Output", NULL
, "Left Speaker PGA" },
419 { "Right Speaker Output", NULL
, "Right Speaker PGA" },
421 { "SPK_LN", NULL
, "Left Speaker Output" },
422 { "SPK_LP", NULL
, "Left Speaker Output" },
423 { "SPK_RN", NULL
, "Right Speaker Output" },
424 { "SPK_RP", NULL
, "Right Speaker Output" },
427 static const struct snd_soc_dapm_route audio_paths_out3
[] = {
428 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
429 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
431 { "OUT3", NULL
, "Mono Output Mixer", }
434 static const struct snd_soc_dapm_route audio_paths_capless
[] = {
435 { "HP_L", NULL
, "OUT3 VMID" },
436 { "HP_R", NULL
, "OUT3 VMID" },
438 { "OUT3 VMID", NULL
, "Left Output Mixer" },
439 { "OUT3 VMID", NULL
, "Right Output Mixer" },
442 static int wm8960_add_widgets(struct snd_soc_codec
*codec
)
444 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
445 struct wm8960_data
*pdata
= &wm8960
->pdata
;
446 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
447 struct snd_soc_dapm_widget
*w
;
449 snd_soc_dapm_new_controls(dapm
, wm8960_dapm_widgets
,
450 ARRAY_SIZE(wm8960_dapm_widgets
));
452 snd_soc_dapm_add_routes(dapm
, audio_paths
, ARRAY_SIZE(audio_paths
));
454 /* In capless mode OUT3 is used to provide VMID for the
455 * headphone outputs, otherwise it is used as a mono mixer.
457 if (pdata
&& pdata
->capless
) {
458 snd_soc_dapm_new_controls(dapm
, wm8960_dapm_widgets_capless
,
459 ARRAY_SIZE(wm8960_dapm_widgets_capless
));
461 snd_soc_dapm_add_routes(dapm
, audio_paths_capless
,
462 ARRAY_SIZE(audio_paths_capless
));
464 snd_soc_dapm_new_controls(dapm
, wm8960_dapm_widgets_out3
,
465 ARRAY_SIZE(wm8960_dapm_widgets_out3
));
467 snd_soc_dapm_add_routes(dapm
, audio_paths_out3
,
468 ARRAY_SIZE(audio_paths_out3
));
471 /* We need to power up the headphone output stage out of
472 * sequence for capless mode. To save scanning the widget
473 * list each time to find the desired power state do so now
474 * and save the result.
476 list_for_each_entry(w
, &codec
->component
.card
->widgets
, list
) {
477 if (w
->dapm
!= &codec
->dapm
)
479 if (strcmp(w
->name
, "LOUT1 PGA") == 0)
481 if (strcmp(w
->name
, "ROUT1 PGA") == 0)
483 if (strcmp(w
->name
, "OUT3 VMID") == 0)
490 static int wm8960_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
493 struct snd_soc_codec
*codec
= codec_dai
->codec
;
496 /* set master/slave audio interface */
497 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
498 case SND_SOC_DAIFMT_CBM_CFM
:
501 case SND_SOC_DAIFMT_CBS_CFS
:
507 /* interface format */
508 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
509 case SND_SOC_DAIFMT_I2S
:
512 case SND_SOC_DAIFMT_RIGHT_J
:
514 case SND_SOC_DAIFMT_LEFT_J
:
517 case SND_SOC_DAIFMT_DSP_A
:
520 case SND_SOC_DAIFMT_DSP_B
:
527 /* clock inversion */
528 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
529 case SND_SOC_DAIFMT_NB_NF
:
531 case SND_SOC_DAIFMT_IB_IF
:
534 case SND_SOC_DAIFMT_IB_NF
:
537 case SND_SOC_DAIFMT_NB_IF
:
545 snd_soc_write(codec
, WM8960_IFACE1
, iface
);
564 static int wm8960_hw_params(struct snd_pcm_substream
*substream
,
565 struct snd_pcm_hw_params
*params
,
566 struct snd_soc_dai
*dai
)
568 struct snd_soc_codec
*codec
= dai
->codec
;
569 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
570 u16 iface
= snd_soc_read(codec
, WM8960_IFACE1
) & 0xfff3;
574 switch (params_width(params
)) {
584 dev_err(codec
->dev
, "unsupported width %d\n",
585 params_width(params
));
589 /* Update filters for the new rate */
590 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
) {
591 wm8960
->playback_fs
= params_rate(params
);
592 wm8960_set_deemph(codec
);
594 for (i
= 0; i
< ARRAY_SIZE(alc_rates
); i
++)
595 if (alc_rates
[i
].rate
== params_rate(params
))
596 snd_soc_update_bits(codec
,
602 snd_soc_write(codec
, WM8960_IFACE1
, iface
);
606 static int wm8960_mute(struct snd_soc_dai
*dai
, int mute
)
608 struct snd_soc_codec
*codec
= dai
->codec
;
611 snd_soc_update_bits(codec
, WM8960_DACCTL1
, 0x8, 0x8);
613 snd_soc_update_bits(codec
, WM8960_DACCTL1
, 0x8, 0);
617 static int wm8960_set_bias_level_out3(struct snd_soc_codec
*codec
,
618 enum snd_soc_bias_level level
)
620 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
623 case SND_SOC_BIAS_ON
:
626 case SND_SOC_BIAS_PREPARE
:
627 /* Set VMID to 2x50k */
628 snd_soc_update_bits(codec
, WM8960_POWER1
, 0x180, 0x80);
631 case SND_SOC_BIAS_STANDBY
:
632 if (codec
->dapm
.bias_level
== SND_SOC_BIAS_OFF
) {
633 regcache_sync(wm8960
->regmap
);
635 /* Enable anti-pop features */
636 snd_soc_write(codec
, WM8960_APOP1
,
637 WM8960_POBCTRL
| WM8960_SOFT_ST
|
638 WM8960_BUFDCOPEN
| WM8960_BUFIOEN
);
640 /* Enable & ramp VMID at 2x50k */
641 snd_soc_update_bits(codec
, WM8960_POWER1
, 0x80, 0x80);
645 snd_soc_update_bits(codec
, WM8960_POWER1
, WM8960_VREF
,
648 /* Disable anti-pop features */
649 snd_soc_write(codec
, WM8960_APOP1
, WM8960_BUFIOEN
);
652 /* Set VMID to 2x250k */
653 snd_soc_update_bits(codec
, WM8960_POWER1
, 0x180, 0x100);
656 case SND_SOC_BIAS_OFF
:
657 /* Enable anti-pop features */
658 snd_soc_write(codec
, WM8960_APOP1
,
659 WM8960_POBCTRL
| WM8960_SOFT_ST
|
660 WM8960_BUFDCOPEN
| WM8960_BUFIOEN
);
662 /* Disable VMID and VREF, let them discharge */
663 snd_soc_write(codec
, WM8960_POWER1
, 0);
668 codec
->dapm
.bias_level
= level
;
673 static int wm8960_set_bias_level_capless(struct snd_soc_codec
*codec
,
674 enum snd_soc_bias_level level
)
676 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
680 case SND_SOC_BIAS_ON
:
683 case SND_SOC_BIAS_PREPARE
:
684 switch (codec
->dapm
.bias_level
) {
685 case SND_SOC_BIAS_STANDBY
:
686 /* Enable anti pop mode */
687 snd_soc_update_bits(codec
, WM8960_APOP1
,
688 WM8960_POBCTRL
| WM8960_SOFT_ST
|
690 WM8960_POBCTRL
| WM8960_SOFT_ST
|
693 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
695 if (wm8960
->lout1
&& wm8960
->lout1
->power
)
696 reg
|= WM8960_PWR2_LOUT1
;
697 if (wm8960
->rout1
&& wm8960
->rout1
->power
)
698 reg
|= WM8960_PWR2_ROUT1
;
699 if (wm8960
->out3
&& wm8960
->out3
->power
)
700 reg
|= WM8960_PWR2_OUT3
;
701 snd_soc_update_bits(codec
, WM8960_POWER2
,
704 WM8960_PWR2_OUT3
, reg
);
706 /* Enable VMID at 2*50k */
707 snd_soc_update_bits(codec
, WM8960_POWER1
,
708 WM8960_VMID_MASK
, 0x80);
714 snd_soc_update_bits(codec
, WM8960_POWER1
,
715 WM8960_VREF
, WM8960_VREF
);
720 case SND_SOC_BIAS_ON
:
721 /* Enable anti-pop mode */
722 snd_soc_update_bits(codec
, WM8960_APOP1
,
723 WM8960_POBCTRL
| WM8960_SOFT_ST
|
725 WM8960_POBCTRL
| WM8960_SOFT_ST
|
728 /* Disable VMID and VREF */
729 snd_soc_update_bits(codec
, WM8960_POWER1
,
730 WM8960_VREF
| WM8960_VMID_MASK
, 0);
733 case SND_SOC_BIAS_OFF
:
734 regcache_sync(wm8960
->regmap
);
741 case SND_SOC_BIAS_STANDBY
:
742 switch (codec
->dapm
.bias_level
) {
743 case SND_SOC_BIAS_PREPARE
:
744 /* Disable HP discharge */
745 snd_soc_update_bits(codec
, WM8960_APOP2
,
746 WM8960_DISOP
| WM8960_DRES_MASK
,
749 /* Disable anti-pop features */
750 snd_soc_update_bits(codec
, WM8960_APOP1
,
751 WM8960_POBCTRL
| WM8960_SOFT_ST
|
753 WM8960_POBCTRL
| WM8960_SOFT_ST
|
762 case SND_SOC_BIAS_OFF
:
766 codec
->dapm
.bias_level
= level
;
778 /* The size in bits of the pll divide multiplied by 10
779 * to allow rounding later */
780 #define FIXED_PLL_SIZE ((1 << 24) * 10)
782 static int pll_factors(unsigned int source
, unsigned int target
,
783 struct _pll_div
*pll_div
)
785 unsigned long long Kpart
;
786 unsigned int K
, Ndiv
, Nmod
;
788 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source
, target
);
790 /* Scale up target to PLL operating frequency */
793 Ndiv
= target
/ source
;
796 pll_div
->pre_div
= 1;
797 Ndiv
= target
/ source
;
799 pll_div
->pre_div
= 0;
801 if ((Ndiv
< 6) || (Ndiv
> 12)) {
802 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv
);
807 Nmod
= target
% source
;
808 Kpart
= FIXED_PLL_SIZE
* (long long)Nmod
;
810 do_div(Kpart
, source
);
812 K
= Kpart
& 0xFFFFFFFF;
814 /* Check if we need to round */
818 /* Move down to proper range now rounding is done */
823 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
824 pll_div
->n
, pll_div
->k
, pll_div
->pre_div
);
829 static int wm8960_set_dai_pll(struct snd_soc_dai
*codec_dai
, int pll_id
,
830 int source
, unsigned int freq_in
, unsigned int freq_out
)
832 struct snd_soc_codec
*codec
= codec_dai
->codec
;
834 static struct _pll_div pll_div
;
837 if (freq_in
&& freq_out
) {
838 ret
= pll_factors(freq_in
, freq_out
, &pll_div
);
843 /* Disable the PLL: even if we are changing the frequency the
844 * PLL needs to be disabled while we do so. */
845 snd_soc_update_bits(codec
, WM8960_CLOCK1
, 0x1, 0);
846 snd_soc_update_bits(codec
, WM8960_POWER2
, 0x1, 0);
848 if (!freq_in
|| !freq_out
)
851 reg
= snd_soc_read(codec
, WM8960_PLL1
) & ~0x3f;
852 reg
|= pll_div
.pre_div
<< 4;
858 snd_soc_write(codec
, WM8960_PLL2
, (pll_div
.k
>> 16) & 0xff);
859 snd_soc_write(codec
, WM8960_PLL3
, (pll_div
.k
>> 8) & 0xff);
860 snd_soc_write(codec
, WM8960_PLL4
, pll_div
.k
& 0xff);
862 snd_soc_write(codec
, WM8960_PLL1
, reg
);
865 snd_soc_update_bits(codec
, WM8960_POWER2
, 0x1, 0x1);
867 snd_soc_update_bits(codec
, WM8960_CLOCK1
, 0x1, 0x1);
872 static int wm8960_set_dai_clkdiv(struct snd_soc_dai
*codec_dai
,
875 struct snd_soc_codec
*codec
= codec_dai
->codec
;
879 case WM8960_SYSCLKDIV
:
880 reg
= snd_soc_read(codec
, WM8960_CLOCK1
) & 0x1f9;
881 snd_soc_write(codec
, WM8960_CLOCK1
, reg
| div
);
884 reg
= snd_soc_read(codec
, WM8960_CLOCK1
) & 0x1c7;
885 snd_soc_write(codec
, WM8960_CLOCK1
, reg
| div
);
887 case WM8960_OPCLKDIV
:
888 reg
= snd_soc_read(codec
, WM8960_PLL1
) & 0x03f;
889 snd_soc_write(codec
, WM8960_PLL1
, reg
| div
);
892 reg
= snd_soc_read(codec
, WM8960_CLOCK2
) & 0x03f;
893 snd_soc_write(codec
, WM8960_CLOCK2
, reg
| div
);
895 case WM8960_TOCLKSEL
:
896 reg
= snd_soc_read(codec
, WM8960_ADDCTL1
) & 0x1fd;
897 snd_soc_write(codec
, WM8960_ADDCTL1
, reg
| div
);
906 static int wm8960_set_bias_level(struct snd_soc_codec
*codec
,
907 enum snd_soc_bias_level level
)
909 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
911 return wm8960
->set_bias_level(codec
, level
);
914 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
916 #define WM8960_FORMATS \
917 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
918 SNDRV_PCM_FMTBIT_S24_LE)
920 static const struct snd_soc_dai_ops wm8960_dai_ops
= {
921 .hw_params
= wm8960_hw_params
,
922 .digital_mute
= wm8960_mute
,
923 .set_fmt
= wm8960_set_dai_fmt
,
924 .set_clkdiv
= wm8960_set_dai_clkdiv
,
925 .set_pll
= wm8960_set_dai_pll
,
928 static struct snd_soc_dai_driver wm8960_dai
= {
929 .name
= "wm8960-hifi",
931 .stream_name
= "Playback",
934 .rates
= WM8960_RATES
,
935 .formats
= WM8960_FORMATS
,},
937 .stream_name
= "Capture",
940 .rates
= WM8960_RATES
,
941 .formats
= WM8960_FORMATS
,},
942 .ops
= &wm8960_dai_ops
,
943 .symmetric_rates
= 1,
946 static int wm8960_probe(struct snd_soc_codec
*codec
)
948 struct wm8960_priv
*wm8960
= snd_soc_codec_get_drvdata(codec
);
949 struct wm8960_data
*pdata
= &wm8960
->pdata
;
952 wm8960
->set_bias_level
= wm8960_set_bias_level_capless
;
954 wm8960
->set_bias_level
= wm8960_set_bias_level_out3
;
956 snd_soc_add_codec_controls(codec
, wm8960_snd_controls
,
957 ARRAY_SIZE(wm8960_snd_controls
));
958 wm8960_add_widgets(codec
);
963 static struct snd_soc_codec_driver soc_codec_dev_wm8960
= {
964 .probe
= wm8960_probe
,
965 .set_bias_level
= wm8960_set_bias_level
,
966 .suspend_bias_off
= true,
969 static const struct regmap_config wm8960_regmap
= {
972 .max_register
= WM8960_PLL4
,
974 .reg_defaults
= wm8960_reg_defaults
,
975 .num_reg_defaults
= ARRAY_SIZE(wm8960_reg_defaults
),
976 .cache_type
= REGCACHE_RBTREE
,
978 .volatile_reg
= wm8960_volatile
,
981 static void wm8960_set_pdata_from_of(struct i2c_client
*i2c
,
982 struct wm8960_data
*pdata
)
984 const struct device_node
*np
= i2c
->dev
.of_node
;
986 if (of_property_read_bool(np
, "wlf,capless"))
987 pdata
->capless
= true;
989 if (of_property_read_bool(np
, "wlf,shared-lrclk"))
990 pdata
->shared_lrclk
= true;
993 static int wm8960_i2c_probe(struct i2c_client
*i2c
,
994 const struct i2c_device_id
*id
)
996 struct wm8960_data
*pdata
= dev_get_platdata(&i2c
->dev
);
997 struct wm8960_priv
*wm8960
;
1000 wm8960
= devm_kzalloc(&i2c
->dev
, sizeof(struct wm8960_priv
),
1005 wm8960
->regmap
= devm_regmap_init_i2c(i2c
, &wm8960_regmap
);
1006 if (IS_ERR(wm8960
->regmap
))
1007 return PTR_ERR(wm8960
->regmap
);
1010 memcpy(&wm8960
->pdata
, pdata
, sizeof(struct wm8960_data
));
1011 else if (i2c
->dev
.of_node
)
1012 wm8960_set_pdata_from_of(i2c
, &wm8960
->pdata
);
1014 ret
= wm8960_reset(wm8960
->regmap
);
1016 dev_err(&i2c
->dev
, "Failed to issue reset\n");
1020 if (wm8960
->pdata
.shared_lrclk
) {
1021 ret
= regmap_update_bits(wm8960
->regmap
, WM8960_ADDCTL2
,
1024 dev_err(&i2c
->dev
, "Failed to enable LRCM: %d\n",
1030 /* Latch the update bits */
1031 regmap_update_bits(wm8960
->regmap
, WM8960_LINVOL
, 0x100, 0x100);
1032 regmap_update_bits(wm8960
->regmap
, WM8960_RINVOL
, 0x100, 0x100);
1033 regmap_update_bits(wm8960
->regmap
, WM8960_LADC
, 0x100, 0x100);
1034 regmap_update_bits(wm8960
->regmap
, WM8960_RADC
, 0x100, 0x100);
1035 regmap_update_bits(wm8960
->regmap
, WM8960_LDAC
, 0x100, 0x100);
1036 regmap_update_bits(wm8960
->regmap
, WM8960_RDAC
, 0x100, 0x100);
1037 regmap_update_bits(wm8960
->regmap
, WM8960_LOUT1
, 0x100, 0x100);
1038 regmap_update_bits(wm8960
->regmap
, WM8960_ROUT1
, 0x100, 0x100);
1039 regmap_update_bits(wm8960
->regmap
, WM8960_LOUT2
, 0x100, 0x100);
1040 regmap_update_bits(wm8960
->regmap
, WM8960_ROUT2
, 0x100, 0x100);
1042 i2c_set_clientdata(i2c
, wm8960
);
1044 ret
= snd_soc_register_codec(&i2c
->dev
,
1045 &soc_codec_dev_wm8960
, &wm8960_dai
, 1);
1050 static int wm8960_i2c_remove(struct i2c_client
*client
)
1052 snd_soc_unregister_codec(&client
->dev
);
1056 static const struct i2c_device_id wm8960_i2c_id
[] = {
1060 MODULE_DEVICE_TABLE(i2c
, wm8960_i2c_id
);
1062 static const struct of_device_id wm8960_of_match
[] = {
1063 { .compatible
= "wlf,wm8960", },
1066 MODULE_DEVICE_TABLE(of
, wm8960_of_match
);
1068 static struct i2c_driver wm8960_i2c_driver
= {
1071 .owner
= THIS_MODULE
,
1072 .of_match_table
= wm8960_of_match
,
1074 .probe
= wm8960_i2c_probe
,
1075 .remove
= wm8960_i2c_remove
,
1076 .id_table
= wm8960_i2c_id
,
1079 module_i2c_driver(wm8960_i2c_driver
);
1081 MODULE_DESCRIPTION("ASoC WM8960 driver");
1082 MODULE_AUTHOR("Liam Girdwood");
1083 MODULE_LICENSE("GPL");