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 <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/pcm_params.h>
21 #include <sound/soc.h>
22 #include <sound/soc-dapm.h>
23 #include <sound/initval.h>
24 #include <sound/tlv.h>
25 #include <sound/wm8960.h>
29 #define AUDIO_NAME "wm8960"
31 struct snd_soc_codec_device soc_codec_dev_wm8960
;
34 #define WM8960_VMID_MASK 0x180
35 #define WM8960_VREF 0x40
38 #define WM8960_PWR2_LOUT1 0x40
39 #define WM8960_PWR2_ROUT1 0x20
40 #define WM8960_PWR2_OUT3 0x02
42 /* R28 - Anti-pop 1 */
43 #define WM8960_POBCTRL 0x80
44 #define WM8960_BUFDCOPEN 0x10
45 #define WM8960_BUFIOEN 0x08
46 #define WM8960_SOFT_ST 0x04
47 #define WM8960_HPSTBY 0x01
49 /* R29 - Anti-pop 2 */
50 #define WM8960_DISOP 0x40
51 #define WM8960_DRES_MASK 0x30
54 * wm8960 register cache
55 * We can't read the WM8960 register space when we are
56 * using 2 wire for device control, so we cache them instead.
58 static const u16 wm8960_reg
[WM8960_CACHEREGNUM
] = {
59 0x0097, 0x0097, 0x0000, 0x0000,
60 0x0000, 0x0008, 0x0000, 0x000a,
61 0x01c0, 0x0000, 0x00ff, 0x00ff,
62 0x0000, 0x0000, 0x0000, 0x0000,
63 0x0000, 0x007b, 0x0100, 0x0032,
64 0x0000, 0x00c3, 0x00c3, 0x01c0,
65 0x0000, 0x0000, 0x0000, 0x0000,
66 0x0000, 0x0000, 0x0000, 0x0000,
67 0x0100, 0x0100, 0x0050, 0x0050,
68 0x0050, 0x0050, 0x0000, 0x0000,
69 0x0000, 0x0000, 0x0040, 0x0000,
70 0x0000, 0x0050, 0x0050, 0x0000,
71 0x0002, 0x0037, 0x004d, 0x0080,
72 0x0008, 0x0031, 0x0026, 0x00e9,
76 u16 reg_cache
[WM8960_CACHEREGNUM
];
77 struct snd_soc_codec codec
;
78 struct snd_soc_dapm_widget
*lout1
;
79 struct snd_soc_dapm_widget
*rout1
;
80 struct snd_soc_dapm_widget
*out3
;
83 #define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
85 /* enumerated controls */
86 static const char *wm8960_deemph
[] = {"None", "32Khz", "44.1Khz", "48Khz"};
87 static const char *wm8960_polarity
[] = {"No Inversion", "Left Inverted",
88 "Right Inverted", "Stereo Inversion"};
89 static const char *wm8960_3d_upper_cutoff
[] = {"High", "Low"};
90 static const char *wm8960_3d_lower_cutoff
[] = {"Low", "High"};
91 static const char *wm8960_alcfunc
[] = {"Off", "Right", "Left", "Stereo"};
92 static const char *wm8960_alcmode
[] = {"ALC", "Limiter"};
94 static const struct soc_enum wm8960_enum
[] = {
95 SOC_ENUM_SINGLE(WM8960_DACCTL1
, 1, 4, wm8960_deemph
),
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 DECLARE_TLV_DB_SCALE(adc_tlv
, -9700, 50, 0);
105 static const DECLARE_TLV_DB_SCALE(dac_tlv
, -12700, 50, 1);
106 static const DECLARE_TLV_DB_SCALE(bypass_tlv
, -2100, 300, 0);
107 static const DECLARE_TLV_DB_SCALE(out_tlv
, -12100, 100, 1);
109 static const struct snd_kcontrol_new wm8960_snd_controls
[] = {
110 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL
, WM8960_RINVOL
,
112 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL
, WM8960_RINVOL
,
114 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL
, WM8960_RINVOL
,
117 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC
, WM8960_RDAC
,
120 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1
, WM8960_ROUT1
,
122 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1
, WM8960_ROUT1
,
125 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2
, WM8960_ROUT2
,
127 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2
, WM8960_ROUT2
,
129 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3
, 3, 5, 0),
130 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3
, 0, 5, 0),
132 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1
, 7, 1, 0),
133 SOC_ENUM("ADC Polarity", wm8960_enum
[1]),
134 SOC_ENUM("Playback De-emphasis", wm8960_enum
[0]),
135 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1
, 0, 1, 0),
137 SOC_ENUM("DAC Polarity", wm8960_enum
[2]),
139 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum
[3]),
140 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum
[4]),
141 SOC_SINGLE("3D Volume", WM8960_3D
, 1, 15, 0),
142 SOC_SINGLE("3D Switch", WM8960_3D
, 0, 1, 0),
144 SOC_ENUM("ALC Function", wm8960_enum
[5]),
145 SOC_SINGLE("ALC Max Gain", WM8960_ALC1
, 4, 7, 0),
146 SOC_SINGLE("ALC Target", WM8960_ALC1
, 0, 15, 1),
147 SOC_SINGLE("ALC Min Gain", WM8960_ALC2
, 4, 7, 0),
148 SOC_SINGLE("ALC Hold Time", WM8960_ALC2
, 0, 15, 0),
149 SOC_ENUM("ALC Mode", wm8960_enum
[6]),
150 SOC_SINGLE("ALC Decay", WM8960_ALC3
, 4, 15, 0),
151 SOC_SINGLE("ALC Attack", WM8960_ALC3
, 0, 15, 0),
153 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG
, 3, 31, 0),
154 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG
, 0, 1, 0),
156 SOC_DOUBLE_R("ADC PCM Capture Volume", WM8960_LINPATH
, WM8960_RINPATH
,
159 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
160 WM8960_BYPASS1
, 4, 7, 1, bypass_tlv
),
161 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
162 WM8960_LOUTMIX
, 4, 7, 1, bypass_tlv
),
163 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
164 WM8960_BYPASS2
, 4, 7, 1, bypass_tlv
),
165 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
166 WM8960_ROUTMIX
, 4, 7, 1, bypass_tlv
),
169 static const struct snd_kcontrol_new wm8960_lin_boost
[] = {
170 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH
, 6, 1, 0),
171 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH
, 7, 1, 0),
172 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH
, 8, 1, 0),
175 static const struct snd_kcontrol_new wm8960_lin
[] = {
176 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH
, 3, 1, 0),
179 static const struct snd_kcontrol_new wm8960_rin_boost
[] = {
180 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH
, 6, 1, 0),
181 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH
, 7, 1, 0),
182 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH
, 8, 1, 0),
185 static const struct snd_kcontrol_new wm8960_rin
[] = {
186 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH
, 3, 1, 0),
189 static const struct snd_kcontrol_new wm8960_loutput_mixer
[] = {
190 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX
, 8, 1, 0),
191 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX
, 7, 1, 0),
192 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1
, 7, 1, 0),
195 static const struct snd_kcontrol_new wm8960_routput_mixer
[] = {
196 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX
, 8, 1, 0),
197 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX
, 7, 1, 0),
198 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2
, 7, 1, 0),
201 static const struct snd_kcontrol_new wm8960_mono_out
[] = {
202 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1
, 7, 1, 0),
203 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2
, 7, 1, 0),
206 static const struct snd_soc_dapm_widget wm8960_dapm_widgets
[] = {
207 SND_SOC_DAPM_INPUT("LINPUT1"),
208 SND_SOC_DAPM_INPUT("RINPUT1"),
209 SND_SOC_DAPM_INPUT("LINPUT2"),
210 SND_SOC_DAPM_INPUT("RINPUT2"),
211 SND_SOC_DAPM_INPUT("LINPUT3"),
212 SND_SOC_DAPM_INPUT("RINPUT3"),
214 SND_SOC_DAPM_MICBIAS("MICB", WM8960_POWER1
, 1, 0),
216 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1
, 5, 0,
217 wm8960_lin_boost
, ARRAY_SIZE(wm8960_lin_boost
)),
218 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1
, 4, 0,
219 wm8960_rin_boost
, ARRAY_SIZE(wm8960_rin_boost
)),
221 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3
, 5, 0,
222 wm8960_lin
, ARRAY_SIZE(wm8960_lin
)),
223 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3
, 4, 0,
224 wm8960_rin
, ARRAY_SIZE(wm8960_rin
)),
226 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER2
, 3, 0),
227 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER2
, 2, 0),
229 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2
, 8, 0),
230 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2
, 7, 0),
232 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3
, 3, 0,
233 &wm8960_loutput_mixer
[0],
234 ARRAY_SIZE(wm8960_loutput_mixer
)),
235 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3
, 2, 0,
236 &wm8960_routput_mixer
[0],
237 ARRAY_SIZE(wm8960_routput_mixer
)),
239 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2
, 6, 0, NULL
, 0),
240 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2
, 5, 0, NULL
, 0),
242 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2
, 4, 0, NULL
, 0),
243 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2
, 3, 0, NULL
, 0),
245 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1
, 7, 0, NULL
, 0),
246 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1
, 6, 0, NULL
, 0),
248 SND_SOC_DAPM_OUTPUT("SPK_LP"),
249 SND_SOC_DAPM_OUTPUT("SPK_LN"),
250 SND_SOC_DAPM_OUTPUT("HP_L"),
251 SND_SOC_DAPM_OUTPUT("HP_R"),
252 SND_SOC_DAPM_OUTPUT("SPK_RP"),
253 SND_SOC_DAPM_OUTPUT("SPK_RN"),
254 SND_SOC_DAPM_OUTPUT("OUT3"),
257 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3
[] = {
258 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2
, 1, 0,
260 ARRAY_SIZE(wm8960_mono_out
)),
263 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
264 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless
[] = {
265 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2
, 1, 0, NULL
, 0),
268 static const struct snd_soc_dapm_route audio_paths
[] = {
269 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
270 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
271 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
273 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
274 { "Left Input Mixer", NULL
, "LINPUT1", }, /* Really Boost Switch */
275 { "Left Input Mixer", NULL
, "LINPUT2" },
276 { "Left Input Mixer", NULL
, "LINPUT3" },
278 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
279 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
280 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
282 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
283 { "Right Input Mixer", NULL
, "RINPUT1", }, /* Really Boost Switch */
284 { "Right Input Mixer", NULL
, "RINPUT2" },
285 { "Right Input Mixer", NULL
, "LINPUT3" },
287 { "Left ADC", NULL
, "Left Input Mixer" },
288 { "Right ADC", NULL
, "Right Input Mixer" },
290 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
291 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
292 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
294 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
295 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
296 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
298 { "LOUT1 PGA", NULL
, "Left Output Mixer" },
299 { "ROUT1 PGA", NULL
, "Right Output Mixer" },
301 { "HP_L", NULL
, "LOUT1 PGA" },
302 { "HP_R", NULL
, "ROUT1 PGA" },
304 { "Left Speaker PGA", NULL
, "Left Output Mixer" },
305 { "Right Speaker PGA", NULL
, "Right Output Mixer" },
307 { "Left Speaker Output", NULL
, "Left Speaker PGA" },
308 { "Right Speaker Output", NULL
, "Right Speaker PGA" },
310 { "SPK_LN", NULL
, "Left Speaker Output" },
311 { "SPK_LP", NULL
, "Left Speaker Output" },
312 { "SPK_RN", NULL
, "Right Speaker Output" },
313 { "SPK_RP", NULL
, "Right Speaker Output" },
316 static const struct snd_soc_dapm_route audio_paths_out3
[] = {
317 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
318 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
320 { "OUT3", NULL
, "Mono Output Mixer", }
323 static const struct snd_soc_dapm_route audio_paths_capless
[] = {
324 { "HP_L", NULL
, "OUT3 VMID" },
325 { "HP_R", NULL
, "OUT3 VMID" },
327 { "OUT3 VMID", NULL
, "Left Output Mixer" },
328 { "OUT3 VMID", NULL
, "Right Output Mixer" },
331 static int wm8960_add_widgets(struct snd_soc_codec
*codec
)
333 struct wm8960_data
*pdata
= codec
->dev
->platform_data
;
334 struct wm8960_priv
*wm8960
= codec
->private_data
;
335 struct snd_soc_dapm_widget
*w
;
337 snd_soc_dapm_new_controls(codec
, wm8960_dapm_widgets
,
338 ARRAY_SIZE(wm8960_dapm_widgets
));
340 snd_soc_dapm_add_routes(codec
, audio_paths
, ARRAY_SIZE(audio_paths
));
342 /* In capless mode OUT3 is used to provide VMID for the
343 * headphone outputs, otherwise it is used as a mono mixer.
345 if (pdata
&& pdata
->capless
) {
346 snd_soc_dapm_new_controls(codec
, wm8960_dapm_widgets_capless
,
347 ARRAY_SIZE(wm8960_dapm_widgets_capless
));
349 snd_soc_dapm_add_routes(codec
, audio_paths_capless
,
350 ARRAY_SIZE(audio_paths_capless
));
352 snd_soc_dapm_new_controls(codec
, wm8960_dapm_widgets_out3
,
353 ARRAY_SIZE(wm8960_dapm_widgets_out3
));
355 snd_soc_dapm_add_routes(codec
, audio_paths_out3
,
356 ARRAY_SIZE(audio_paths_out3
));
359 /* We need to power up the headphone output stage out of
360 * sequence for capless mode. To save scanning the widget
361 * list each time to find the desired power state do so now
362 * and save the result.
364 list_for_each_entry(w
, &codec
->dapm_widgets
, list
) {
365 if (strcmp(w
->name
, "LOUT1 PGA") == 0)
367 if (strcmp(w
->name
, "ROUT1 PGA") == 0)
369 if (strcmp(w
->name
, "OUT3 VMID") == 0)
376 static int wm8960_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
379 struct snd_soc_codec
*codec
= codec_dai
->codec
;
382 /* set master/slave audio interface */
383 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
384 case SND_SOC_DAIFMT_CBM_CFM
:
387 case SND_SOC_DAIFMT_CBS_CFS
:
393 /* interface format */
394 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
395 case SND_SOC_DAIFMT_I2S
:
398 case SND_SOC_DAIFMT_RIGHT_J
:
400 case SND_SOC_DAIFMT_LEFT_J
:
403 case SND_SOC_DAIFMT_DSP_A
:
406 case SND_SOC_DAIFMT_DSP_B
:
413 /* clock inversion */
414 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
415 case SND_SOC_DAIFMT_NB_NF
:
417 case SND_SOC_DAIFMT_IB_IF
:
420 case SND_SOC_DAIFMT_IB_NF
:
423 case SND_SOC_DAIFMT_NB_IF
:
431 snd_soc_write(codec
, WM8960_IFACE1
, iface
);
435 static int wm8960_hw_params(struct snd_pcm_substream
*substream
,
436 struct snd_pcm_hw_params
*params
,
437 struct snd_soc_dai
*dai
)
439 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
440 struct snd_soc_device
*socdev
= rtd
->socdev
;
441 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
442 u16 iface
= snd_soc_read(codec
, WM8960_IFACE1
) & 0xfff3;
445 switch (params_format(params
)) {
446 case SNDRV_PCM_FORMAT_S16_LE
:
448 case SNDRV_PCM_FORMAT_S20_3LE
:
451 case SNDRV_PCM_FORMAT_S24_LE
:
457 snd_soc_write(codec
, WM8960_IFACE1
, iface
);
461 static int wm8960_mute(struct snd_soc_dai
*dai
, int mute
)
463 struct snd_soc_codec
*codec
= dai
->codec
;
464 u16 mute_reg
= snd_soc_read(codec
, WM8960_DACCTL1
) & 0xfff7;
467 snd_soc_write(codec
, WM8960_DACCTL1
, mute_reg
| 0x8);
469 snd_soc_write(codec
, WM8960_DACCTL1
, mute_reg
);
473 static int wm8960_set_bias_level_out3(struct snd_soc_codec
*codec
,
474 enum snd_soc_bias_level level
)
479 case SND_SOC_BIAS_ON
:
482 case SND_SOC_BIAS_PREPARE
:
483 /* Set VMID to 2x50k */
484 reg
= snd_soc_read(codec
, WM8960_POWER1
);
487 snd_soc_write(codec
, WM8960_POWER1
, reg
);
490 case SND_SOC_BIAS_STANDBY
:
491 if (codec
->bias_level
== SND_SOC_BIAS_OFF
) {
492 /* Enable anti-pop features */
493 snd_soc_write(codec
, WM8960_APOP1
,
494 WM8960_POBCTRL
| WM8960_SOFT_ST
|
495 WM8960_BUFDCOPEN
| WM8960_BUFIOEN
);
497 /* Enable & ramp VMID at 2x50k */
498 reg
= snd_soc_read(codec
, WM8960_POWER1
);
500 snd_soc_write(codec
, WM8960_POWER1
, reg
);
504 snd_soc_write(codec
, WM8960_POWER1
, reg
| WM8960_VREF
);
506 /* Disable anti-pop features */
507 snd_soc_write(codec
, WM8960_APOP1
, WM8960_BUFIOEN
);
510 /* Set VMID to 2x250k */
511 reg
= snd_soc_read(codec
, WM8960_POWER1
);
514 snd_soc_write(codec
, WM8960_POWER1
, reg
);
517 case SND_SOC_BIAS_OFF
:
518 /* Enable anti-pop features */
519 snd_soc_write(codec
, WM8960_APOP1
,
520 WM8960_POBCTRL
| WM8960_SOFT_ST
|
521 WM8960_BUFDCOPEN
| WM8960_BUFIOEN
);
523 /* Disable VMID and VREF, let them discharge */
524 snd_soc_write(codec
, WM8960_POWER1
, 0);
529 codec
->bias_level
= level
;
534 static int wm8960_set_bias_level_capless(struct snd_soc_codec
*codec
,
535 enum snd_soc_bias_level level
)
537 struct wm8960_priv
*wm8960
= codec
->private_data
;
541 case SND_SOC_BIAS_ON
:
544 case SND_SOC_BIAS_PREPARE
:
545 switch (codec
->bias_level
) {
546 case SND_SOC_BIAS_STANDBY
:
547 /* Enable anti pop mode */
548 snd_soc_update_bits(codec
, WM8960_APOP1
,
549 WM8960_POBCTRL
| WM8960_SOFT_ST
|
551 WM8960_POBCTRL
| WM8960_SOFT_ST
|
554 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
556 if (wm8960
->lout1
&& wm8960
->lout1
->power
)
557 reg
|= WM8960_PWR2_LOUT1
;
558 if (wm8960
->rout1
&& wm8960
->rout1
->power
)
559 reg
|= WM8960_PWR2_ROUT1
;
560 if (wm8960
->out3
&& wm8960
->out3
->power
)
561 reg
|= WM8960_PWR2_OUT3
;
562 snd_soc_update_bits(codec
, WM8960_POWER2
,
565 WM8960_PWR2_OUT3
, reg
);
567 /* Enable VMID at 2*50k */
568 snd_soc_update_bits(codec
, WM8960_POWER1
,
569 WM8960_VMID_MASK
, 0x80);
575 snd_soc_update_bits(codec
, WM8960_POWER1
,
576 WM8960_VREF
, WM8960_VREF
);
581 case SND_SOC_BIAS_ON
:
582 /* Enable anti-pop mode */
583 snd_soc_update_bits(codec
, WM8960_APOP1
,
584 WM8960_POBCTRL
| WM8960_SOFT_ST
|
586 WM8960_POBCTRL
| WM8960_SOFT_ST
|
589 /* Disable VMID and VREF */
590 snd_soc_update_bits(codec
, WM8960_POWER1
,
591 WM8960_VREF
| WM8960_VMID_MASK
, 0);
599 case SND_SOC_BIAS_STANDBY
:
600 switch (codec
->bias_level
) {
601 case SND_SOC_BIAS_PREPARE
:
602 /* Disable HP discharge */
603 snd_soc_update_bits(codec
, WM8960_APOP2
,
604 WM8960_DISOP
| WM8960_DRES_MASK
,
607 /* Disable anti-pop features */
608 snd_soc_update_bits(codec
, WM8960_APOP1
,
609 WM8960_POBCTRL
| WM8960_SOFT_ST
|
611 WM8960_POBCTRL
| WM8960_SOFT_ST
|
620 case SND_SOC_BIAS_OFF
:
624 codec
->bias_level
= level
;
636 /* The size in bits of the pll divide multiplied by 10
637 * to allow rounding later */
638 #define FIXED_PLL_SIZE ((1 << 24) * 10)
640 static int pll_factors(unsigned int source
, unsigned int target
,
641 struct _pll_div
*pll_div
)
643 unsigned long long Kpart
;
644 unsigned int K
, Ndiv
, Nmod
;
646 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source
, target
);
648 /* Scale up target to PLL operating frequency */
651 Ndiv
= target
/ source
;
654 pll_div
->pre_div
= 1;
655 Ndiv
= target
/ source
;
657 pll_div
->pre_div
= 0;
659 if ((Ndiv
< 6) || (Ndiv
> 12)) {
660 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv
);
665 Nmod
= target
% source
;
666 Kpart
= FIXED_PLL_SIZE
* (long long)Nmod
;
668 do_div(Kpart
, source
);
670 K
= Kpart
& 0xFFFFFFFF;
672 /* Check if we need to round */
676 /* Move down to proper range now rounding is done */
681 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
682 pll_div
->n
, pll_div
->k
, pll_div
->pre_div
);
687 static int wm8960_set_dai_pll(struct snd_soc_dai
*codec_dai
, int pll_id
,
688 int source
, unsigned int freq_in
, unsigned int freq_out
)
690 struct snd_soc_codec
*codec
= codec_dai
->codec
;
692 static struct _pll_div pll_div
;
695 if (freq_in
&& freq_out
) {
696 ret
= pll_factors(freq_in
, freq_out
, &pll_div
);
701 /* Disable the PLL: even if we are changing the frequency the
702 * PLL needs to be disabled while we do so. */
703 snd_soc_write(codec
, WM8960_CLOCK1
,
704 snd_soc_read(codec
, WM8960_CLOCK1
) & ~1);
705 snd_soc_write(codec
, WM8960_POWER2
,
706 snd_soc_read(codec
, WM8960_POWER2
) & ~1);
708 if (!freq_in
|| !freq_out
)
711 reg
= snd_soc_read(codec
, WM8960_PLL1
) & ~0x3f;
712 reg
|= pll_div
.pre_div
<< 4;
718 snd_soc_write(codec
, WM8960_PLL2
, (pll_div
.k
>> 18) & 0x3f);
719 snd_soc_write(codec
, WM8960_PLL3
, (pll_div
.k
>> 9) & 0x1ff);
720 snd_soc_write(codec
, WM8960_PLL4
, pll_div
.k
& 0x1ff);
722 snd_soc_write(codec
, WM8960_PLL1
, reg
);
725 snd_soc_write(codec
, WM8960_POWER2
,
726 snd_soc_read(codec
, WM8960_POWER2
) | 1);
728 snd_soc_write(codec
, WM8960_CLOCK1
,
729 snd_soc_read(codec
, WM8960_CLOCK1
) | 1);
734 static int wm8960_set_dai_clkdiv(struct snd_soc_dai
*codec_dai
,
737 struct snd_soc_codec
*codec
= codec_dai
->codec
;
741 case WM8960_SYSCLKSEL
:
742 reg
= snd_soc_read(codec
, WM8960_CLOCK1
) & 0x1fe;
743 snd_soc_write(codec
, WM8960_CLOCK1
, reg
| div
);
745 case WM8960_SYSCLKDIV
:
746 reg
= snd_soc_read(codec
, WM8960_CLOCK1
) & 0x1f9;
747 snd_soc_write(codec
, WM8960_CLOCK1
, reg
| div
);
750 reg
= snd_soc_read(codec
, WM8960_CLOCK1
) & 0x1c7;
751 snd_soc_write(codec
, WM8960_CLOCK1
, reg
| div
);
753 case WM8960_OPCLKDIV
:
754 reg
= snd_soc_read(codec
, WM8960_PLL1
) & 0x03f;
755 snd_soc_write(codec
, WM8960_PLL1
, reg
| div
);
758 reg
= snd_soc_read(codec
, WM8960_CLOCK2
) & 0x03f;
759 snd_soc_write(codec
, WM8960_CLOCK2
, reg
| div
);
761 case WM8960_TOCLKSEL
:
762 reg
= snd_soc_read(codec
, WM8960_ADDCTL1
) & 0x1fd;
763 snd_soc_write(codec
, WM8960_ADDCTL1
, reg
| div
);
772 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
774 #define WM8960_FORMATS \
775 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
776 SNDRV_PCM_FMTBIT_S24_LE)
778 static struct snd_soc_dai_ops wm8960_dai_ops
= {
779 .hw_params
= wm8960_hw_params
,
780 .digital_mute
= wm8960_mute
,
781 .set_fmt
= wm8960_set_dai_fmt
,
782 .set_clkdiv
= wm8960_set_dai_clkdiv
,
783 .set_pll
= wm8960_set_dai_pll
,
786 struct snd_soc_dai wm8960_dai
= {
789 .stream_name
= "Playback",
792 .rates
= WM8960_RATES
,
793 .formats
= WM8960_FORMATS
,},
795 .stream_name
= "Capture",
798 .rates
= WM8960_RATES
,
799 .formats
= WM8960_FORMATS
,},
800 .ops
= &wm8960_dai_ops
,
801 .symmetric_rates
= 1,
803 EXPORT_SYMBOL_GPL(wm8960_dai
);
805 static int wm8960_suspend(struct platform_device
*pdev
, pm_message_t state
)
807 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
808 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
810 codec
->set_bias_level(codec
, SND_SOC_BIAS_OFF
);
814 static int wm8960_resume(struct platform_device
*pdev
)
816 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
817 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
820 u16
*cache
= codec
->reg_cache
;
822 /* Sync reg_cache with the hardware */
823 for (i
= 0; i
< ARRAY_SIZE(wm8960_reg
); i
++) {
824 data
[0] = (i
<< 1) | ((cache
[i
] >> 8) & 0x0001);
825 data
[1] = cache
[i
] & 0x00ff;
826 codec
->hw_write(codec
->control_data
, data
, 2);
829 codec
->set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
830 codec
->set_bias_level(codec
, codec
->suspend_bias_level
);
834 static struct snd_soc_codec
*wm8960_codec
;
836 static int wm8960_probe(struct platform_device
*pdev
)
838 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
839 struct snd_soc_codec
*codec
;
842 if (wm8960_codec
== NULL
) {
843 dev_err(&pdev
->dev
, "Codec device not registered\n");
847 socdev
->card
->codec
= wm8960_codec
;
848 codec
= wm8960_codec
;
851 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
853 dev_err(codec
->dev
, "failed to create pcms: %d\n", ret
);
857 snd_soc_add_controls(codec
, wm8960_snd_controls
,
858 ARRAY_SIZE(wm8960_snd_controls
));
859 wm8960_add_widgets(codec
);
867 /* power down chip */
868 static int wm8960_remove(struct platform_device
*pdev
)
870 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
872 snd_soc_free_pcms(socdev
);
873 snd_soc_dapm_free(socdev
);
878 struct snd_soc_codec_device soc_codec_dev_wm8960
= {
879 .probe
= wm8960_probe
,
880 .remove
= wm8960_remove
,
881 .suspend
= wm8960_suspend
,
882 .resume
= wm8960_resume
,
884 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8960
);
886 static int wm8960_register(struct wm8960_priv
*wm8960
,
887 enum snd_soc_control_type control
)
889 struct wm8960_data
*pdata
= wm8960
->codec
.dev
->platform_data
;
890 struct snd_soc_codec
*codec
= &wm8960
->codec
;
895 dev_err(codec
->dev
, "Another WM8960 is registered\n");
900 codec
->set_bias_level
= wm8960_set_bias_level_out3
;
903 dev_warn(codec
->dev
, "No platform data supplied\n");
905 if (pdata
->dres
> WM8960_DRES_MAX
) {
906 dev_err(codec
->dev
, "Invalid DRES: %d\n", pdata
->dres
);
911 codec
->set_bias_level
= wm8960_set_bias_level_capless
;
914 mutex_init(&codec
->mutex
);
915 INIT_LIST_HEAD(&codec
->dapm_widgets
);
916 INIT_LIST_HEAD(&codec
->dapm_paths
);
918 codec
->private_data
= wm8960
;
919 codec
->name
= "WM8960";
920 codec
->owner
= THIS_MODULE
;
921 codec
->bias_level
= SND_SOC_BIAS_OFF
;
922 codec
->dai
= &wm8960_dai
;
924 codec
->reg_cache_size
= WM8960_CACHEREGNUM
;
925 codec
->reg_cache
= &wm8960
->reg_cache
;
927 memcpy(codec
->reg_cache
, wm8960_reg
, sizeof(wm8960_reg
));
929 ret
= snd_soc_codec_set_cache_io(codec
, 7, 9, control
);
931 dev_err(codec
->dev
, "Failed to set cache I/O: %d\n", ret
);
935 ret
= wm8960_reset(codec
);
937 dev_err(codec
->dev
, "Failed to issue reset\n");
941 wm8960_dai
.dev
= codec
->dev
;
943 codec
->set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
945 /* Latch the update bits */
946 reg
= snd_soc_read(codec
, WM8960_LINVOL
);
947 snd_soc_write(codec
, WM8960_LINVOL
, reg
| 0x100);
948 reg
= snd_soc_read(codec
, WM8960_RINVOL
);
949 snd_soc_write(codec
, WM8960_RINVOL
, reg
| 0x100);
950 reg
= snd_soc_read(codec
, WM8960_LADC
);
951 snd_soc_write(codec
, WM8960_LADC
, reg
| 0x100);
952 reg
= snd_soc_read(codec
, WM8960_RADC
);
953 snd_soc_write(codec
, WM8960_RADC
, reg
| 0x100);
954 reg
= snd_soc_read(codec
, WM8960_LDAC
);
955 snd_soc_write(codec
, WM8960_LDAC
, reg
| 0x100);
956 reg
= snd_soc_read(codec
, WM8960_RDAC
);
957 snd_soc_write(codec
, WM8960_RDAC
, reg
| 0x100);
958 reg
= snd_soc_read(codec
, WM8960_LOUT1
);
959 snd_soc_write(codec
, WM8960_LOUT1
, reg
| 0x100);
960 reg
= snd_soc_read(codec
, WM8960_ROUT1
);
961 snd_soc_write(codec
, WM8960_ROUT1
, reg
| 0x100);
962 reg
= snd_soc_read(codec
, WM8960_LOUT2
);
963 snd_soc_write(codec
, WM8960_LOUT2
, reg
| 0x100);
964 reg
= snd_soc_read(codec
, WM8960_ROUT2
);
965 snd_soc_write(codec
, WM8960_ROUT2
, reg
| 0x100);
967 wm8960_codec
= codec
;
969 ret
= snd_soc_register_codec(codec
);
971 dev_err(codec
->dev
, "Failed to register codec: %d\n", ret
);
975 ret
= snd_soc_register_dai(&wm8960_dai
);
977 dev_err(codec
->dev
, "Failed to register DAI: %d\n", ret
);
984 snd_soc_unregister_codec(codec
);
990 static void wm8960_unregister(struct wm8960_priv
*wm8960
)
992 wm8960
->codec
.set_bias_level(&wm8960
->codec
, SND_SOC_BIAS_OFF
);
993 snd_soc_unregister_dai(&wm8960_dai
);
994 snd_soc_unregister_codec(&wm8960
->codec
);
999 static __devinit
int wm8960_i2c_probe(struct i2c_client
*i2c
,
1000 const struct i2c_device_id
*id
)
1002 struct wm8960_priv
*wm8960
;
1003 struct snd_soc_codec
*codec
;
1005 wm8960
= kzalloc(sizeof(struct wm8960_priv
), GFP_KERNEL
);
1009 codec
= &wm8960
->codec
;
1011 i2c_set_clientdata(i2c
, wm8960
);
1012 codec
->control_data
= i2c
;
1014 codec
->dev
= &i2c
->dev
;
1016 return wm8960_register(wm8960
, SND_SOC_I2C
);
1019 static __devexit
int wm8960_i2c_remove(struct i2c_client
*client
)
1021 struct wm8960_priv
*wm8960
= i2c_get_clientdata(client
);
1022 wm8960_unregister(wm8960
);
1026 static const struct i2c_device_id wm8960_i2c_id
[] = {
1030 MODULE_DEVICE_TABLE(i2c
, wm8960_i2c_id
);
1032 static struct i2c_driver wm8960_i2c_driver
= {
1035 .owner
= THIS_MODULE
,
1037 .probe
= wm8960_i2c_probe
,
1038 .remove
= __devexit_p(wm8960_i2c_remove
),
1039 .id_table
= wm8960_i2c_id
,
1042 static int __init
wm8960_modinit(void)
1046 ret
= i2c_add_driver(&wm8960_i2c_driver
);
1048 printk(KERN_ERR
"Failed to register WM8960 I2C driver: %d\n",
1054 module_init(wm8960_modinit
);
1056 static void __exit
wm8960_exit(void)
1058 i2c_del_driver(&wm8960_i2c_driver
);
1060 module_exit(wm8960_exit
);
1063 MODULE_DESCRIPTION("ASoC WM8960 driver");
1064 MODULE_AUTHOR("Liam Girdwood");
1065 MODULE_LICENSE("GPL");