2 * wm8510.c -- WM8510 ALSA Soc Audio driver
4 * Copyright 2006 Wolfson Microelectronics PLC.
6 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
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/kernel.h>
16 #include <linux/init.h>
17 #include <linux/delay.h>
19 #include <linux/i2c.h>
20 #include <linux/platform_device.h>
21 #include <linux/spi/spi.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/soc-dapm.h>
27 #include <sound/initval.h>
31 #define WM8510_VERSION "0.6"
33 struct snd_soc_codec_device soc_codec_dev_wm8510
;
36 * wm8510 register cache
37 * We can't read the WM8510 register space when we are
38 * using 2 wire for device control, so we cache them instead.
40 static const u16 wm8510_reg
[WM8510_CACHEREGNUM
] = {
41 0x0000, 0x0000, 0x0000, 0x0000,
42 0x0050, 0x0000, 0x0140, 0x0000,
43 0x0000, 0x0000, 0x0000, 0x00ff,
44 0x0000, 0x0000, 0x0100, 0x00ff,
45 0x0000, 0x0000, 0x012c, 0x002c,
46 0x002c, 0x002c, 0x002c, 0x0000,
47 0x0032, 0x0000, 0x0000, 0x0000,
48 0x0000, 0x0000, 0x0000, 0x0000,
49 0x0038, 0x000b, 0x0032, 0x0000,
50 0x0008, 0x000c, 0x0093, 0x00e9,
51 0x0000, 0x0000, 0x0000, 0x0000,
52 0x0003, 0x0010, 0x0000, 0x0000,
53 0x0000, 0x0002, 0x0001, 0x0000,
54 0x0000, 0x0000, 0x0039, 0x0000,
58 #define WM8510_POWER1_BIASEN 0x08
59 #define WM8510_POWER1_BUFIOEN 0x10
61 #define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
63 static const char *wm8510_companding
[] = { "Off", "NC", "u-law", "A-law" };
64 static const char *wm8510_deemp
[] = { "None", "32kHz", "44.1kHz", "48kHz" };
65 static const char *wm8510_alc
[] = { "ALC", "Limiter" };
67 static const struct soc_enum wm8510_enum
[] = {
68 SOC_ENUM_SINGLE(WM8510_COMP
, 1, 4, wm8510_companding
), /* adc */
69 SOC_ENUM_SINGLE(WM8510_COMP
, 3, 4, wm8510_companding
), /* dac */
70 SOC_ENUM_SINGLE(WM8510_DAC
, 4, 4, wm8510_deemp
),
71 SOC_ENUM_SINGLE(WM8510_ALC3
, 8, 2, wm8510_alc
),
74 static const struct snd_kcontrol_new wm8510_snd_controls
[] = {
76 SOC_SINGLE("Digital Loopback Switch", WM8510_COMP
, 0, 1, 0),
78 SOC_ENUM("DAC Companding", wm8510_enum
[1]),
79 SOC_ENUM("ADC Companding", wm8510_enum
[0]),
81 SOC_ENUM("Playback De-emphasis", wm8510_enum
[2]),
82 SOC_SINGLE("DAC Inversion Switch", WM8510_DAC
, 0, 1, 0),
84 SOC_SINGLE("Master Playback Volume", WM8510_DACVOL
, 0, 127, 0),
86 SOC_SINGLE("High Pass Filter Switch", WM8510_ADC
, 8, 1, 0),
87 SOC_SINGLE("High Pass Cut Off", WM8510_ADC
, 4, 7, 0),
88 SOC_SINGLE("ADC Inversion Switch", WM8510_COMP
, 0, 1, 0),
90 SOC_SINGLE("Capture Volume", WM8510_ADCVOL
, 0, 127, 0),
92 SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1
, 8, 1, 0),
93 SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1
, 4, 15, 0),
94 SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1
, 0, 15, 0),
96 SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2
, 4, 7, 0),
97 SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2
, 0, 15, 0),
99 SOC_SINGLE("ALC Enable Switch", WM8510_ALC1
, 8, 1, 0),
100 SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1
, 3, 7, 0),
101 SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1
, 0, 7, 0),
103 SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2
, 8, 1, 0),
104 SOC_SINGLE("ALC Capture Hold", WM8510_ALC2
, 4, 7, 0),
105 SOC_SINGLE("ALC Capture Target", WM8510_ALC2
, 0, 15, 0),
107 SOC_ENUM("ALC Capture Mode", wm8510_enum
[3]),
108 SOC_SINGLE("ALC Capture Decay", WM8510_ALC3
, 4, 15, 0),
109 SOC_SINGLE("ALC Capture Attack", WM8510_ALC3
, 0, 15, 0),
111 SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE
, 3, 1, 0),
112 SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE
, 0, 7, 0),
114 SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA
, 7, 1, 0),
115 SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA
, 0, 63, 0),
117 SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL
, 7, 1, 0),
118 SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL
, 6, 1, 1),
119 SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL
, 0, 63, 0),
120 SOC_SINGLE("Speaker Boost", WM8510_OUTPUT
, 2, 1, 0),
122 SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST
, 8, 1, 0),
123 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX
, 6, 1, 1),
126 /* Speaker Output Mixer */
127 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls
[] = {
128 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX
, 1, 1, 0),
129 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX
, 5, 1, 0),
130 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX
, 0, 1, 0),
133 /* Mono Output Mixer */
134 static const struct snd_kcontrol_new wm8510_mono_mixer_controls
[] = {
135 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX
, 1, 1, 0),
136 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX
, 2, 1, 0),
137 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX
, 0, 1, 0),
140 static const struct snd_kcontrol_new wm8510_boost_controls
[] = {
141 SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA
, 6, 1, 1),
142 SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST
, 0, 7, 0),
143 SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST
, 4, 7, 0),
146 static const struct snd_kcontrol_new wm8510_micpga_controls
[] = {
147 SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT
, 0, 1, 0),
148 SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT
, 1, 1, 0),
149 SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT
, 2, 1, 0),
152 static const struct snd_soc_dapm_widget wm8510_dapm_widgets
[] = {
153 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3
, 2, 0,
154 &wm8510_speaker_mixer_controls
[0],
155 ARRAY_SIZE(wm8510_speaker_mixer_controls
)),
156 SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3
, 3, 0,
157 &wm8510_mono_mixer_controls
[0],
158 ARRAY_SIZE(wm8510_mono_mixer_controls
)),
159 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3
, 0, 0),
160 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2
, 0, 0),
161 SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1
, 6, 0, NULL
, 0),
162 SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3
, 5, 0, NULL
, 0),
163 SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3
, 6, 0, NULL
, 0),
164 SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3
, 7, 0, NULL
, 0),
166 SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2
, 2, 0,
167 &wm8510_micpga_controls
[0],
168 ARRAY_SIZE(wm8510_micpga_controls
)),
169 SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2
, 4, 0,
170 &wm8510_boost_controls
[0],
171 ARRAY_SIZE(wm8510_boost_controls
)),
173 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1
, 4, 0),
175 SND_SOC_DAPM_INPUT("MICN"),
176 SND_SOC_DAPM_INPUT("MICP"),
177 SND_SOC_DAPM_INPUT("AUX"),
178 SND_SOC_DAPM_OUTPUT("MONOOUT"),
179 SND_SOC_DAPM_OUTPUT("SPKOUTP"),
180 SND_SOC_DAPM_OUTPUT("SPKOUTN"),
183 static const struct snd_soc_dapm_route audio_map
[] = {
184 /* Mono output mixer */
185 {"Mono Mixer", "PCM Playback Switch", "DAC"},
186 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
187 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
189 /* Speaker output mixer */
190 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
191 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
192 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
195 {"Mono Out", NULL
, "Mono Mixer"},
196 {"MONOOUT", NULL
, "Mono Out"},
197 {"SpkN Out", NULL
, "Speaker Mixer"},
198 {"SpkP Out", NULL
, "Speaker Mixer"},
199 {"SPKOUTN", NULL
, "SpkN Out"},
200 {"SPKOUTP", NULL
, "SpkP Out"},
203 {"Mic PGA", "MICN Switch", "MICN"},
204 {"Mic PGA", "MICP Switch", "MICP"},
205 { "Mic PGA", "AUX Switch", "Aux Input" },
208 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
209 {"Boost Mixer", "Mic Volume", "MICP"},
210 {"Boost Mixer", "Aux Volume", "Aux Input"},
212 {"ADC", NULL
, "Boost Mixer"},
215 static int wm8510_add_widgets(struct snd_soc_codec
*codec
)
217 snd_soc_dapm_new_controls(codec
, wm8510_dapm_widgets
,
218 ARRAY_SIZE(wm8510_dapm_widgets
));
220 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
226 unsigned int pre_div
:4; /* prescale - 1 */
231 static struct pll_ pll_div
;
233 /* The size in bits of the pll divide multiplied by 10
234 * to allow rounding later */
235 #define FIXED_PLL_SIZE ((1 << 24) * 10)
237 static void pll_factors(unsigned int target
, unsigned int source
)
239 unsigned long long Kpart
;
240 unsigned int K
, Ndiv
, Nmod
;
242 Ndiv
= target
/ source
;
246 Ndiv
= target
/ source
;
250 if ((Ndiv
< 6) || (Ndiv
> 12))
252 "WM8510 N value %u outwith recommended range!d\n",
256 Nmod
= target
% source
;
257 Kpart
= FIXED_PLL_SIZE
* (long long)Nmod
;
259 do_div(Kpart
, source
);
261 K
= Kpart
& 0xFFFFFFFF;
263 /* Check if we need to round */
267 /* Move down to proper range now rounding is done */
273 static int wm8510_set_dai_pll(struct snd_soc_dai
*codec_dai
, int pll_id
,
274 int source
, unsigned int freq_in
, unsigned int freq_out
)
276 struct snd_soc_codec
*codec
= codec_dai
->codec
;
279 if (freq_in
== 0 || freq_out
== 0) {
280 /* Clock CODEC directly from MCLK */
281 reg
= snd_soc_read(codec
, WM8510_CLOCK
);
282 snd_soc_write(codec
, WM8510_CLOCK
, reg
& 0x0ff);
285 reg
= snd_soc_read(codec
, WM8510_POWER1
);
286 snd_soc_write(codec
, WM8510_POWER1
, reg
& 0x1df);
290 pll_factors(freq_out
*4, freq_in
);
292 snd_soc_write(codec
, WM8510_PLLN
, (pll_div
.pre_div
<< 4) | pll_div
.n
);
293 snd_soc_write(codec
, WM8510_PLLK1
, pll_div
.k
>> 18);
294 snd_soc_write(codec
, WM8510_PLLK2
, (pll_div
.k
>> 9) & 0x1ff);
295 snd_soc_write(codec
, WM8510_PLLK3
, pll_div
.k
& 0x1ff);
296 reg
= snd_soc_read(codec
, WM8510_POWER1
);
297 snd_soc_write(codec
, WM8510_POWER1
, reg
| 0x020);
299 /* Run CODEC from PLL instead of MCLK */
300 reg
= snd_soc_read(codec
, WM8510_CLOCK
);
301 snd_soc_write(codec
, WM8510_CLOCK
, reg
| 0x100);
307 * Configure WM8510 clock dividers.
309 static int wm8510_set_dai_clkdiv(struct snd_soc_dai
*codec_dai
,
312 struct snd_soc_codec
*codec
= codec_dai
->codec
;
316 case WM8510_OPCLKDIV
:
317 reg
= snd_soc_read(codec
, WM8510_GPIO
) & 0x1cf;
318 snd_soc_write(codec
, WM8510_GPIO
, reg
| div
);
321 reg
= snd_soc_read(codec
, WM8510_CLOCK
) & 0x11f;
322 snd_soc_write(codec
, WM8510_CLOCK
, reg
| div
);
325 reg
= snd_soc_read(codec
, WM8510_ADC
) & 0x1f7;
326 snd_soc_write(codec
, WM8510_ADC
, reg
| div
);
329 reg
= snd_soc_read(codec
, WM8510_DAC
) & 0x1f7;
330 snd_soc_write(codec
, WM8510_DAC
, reg
| div
);
333 reg
= snd_soc_read(codec
, WM8510_CLOCK
) & 0x1e3;
334 snd_soc_write(codec
, WM8510_CLOCK
, reg
| div
);
343 static int wm8510_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
346 struct snd_soc_codec
*codec
= codec_dai
->codec
;
348 u16 clk
= snd_soc_read(codec
, WM8510_CLOCK
) & 0x1fe;
350 /* set master/slave audio interface */
351 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
352 case SND_SOC_DAIFMT_CBM_CFM
:
355 case SND_SOC_DAIFMT_CBS_CFS
:
361 /* interface format */
362 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
363 case SND_SOC_DAIFMT_I2S
:
366 case SND_SOC_DAIFMT_RIGHT_J
:
368 case SND_SOC_DAIFMT_LEFT_J
:
371 case SND_SOC_DAIFMT_DSP_A
:
378 /* clock inversion */
379 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
380 case SND_SOC_DAIFMT_NB_NF
:
382 case SND_SOC_DAIFMT_IB_IF
:
385 case SND_SOC_DAIFMT_IB_NF
:
388 case SND_SOC_DAIFMT_NB_IF
:
395 snd_soc_write(codec
, WM8510_IFACE
, iface
);
396 snd_soc_write(codec
, WM8510_CLOCK
, clk
);
400 static int wm8510_pcm_hw_params(struct snd_pcm_substream
*substream
,
401 struct snd_pcm_hw_params
*params
,
402 struct snd_soc_dai
*dai
)
404 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
405 struct snd_soc_device
*socdev
= rtd
->socdev
;
406 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
407 u16 iface
= snd_soc_read(codec
, WM8510_IFACE
) & 0x19f;
408 u16 adn
= snd_soc_read(codec
, WM8510_ADD
) & 0x1f1;
411 switch (params_format(params
)) {
412 case SNDRV_PCM_FORMAT_S16_LE
:
414 case SNDRV_PCM_FORMAT_S20_3LE
:
417 case SNDRV_PCM_FORMAT_S24_LE
:
420 case SNDRV_PCM_FORMAT_S32_LE
:
425 /* filter coefficient */
426 switch (params_rate(params
)) {
447 snd_soc_write(codec
, WM8510_IFACE
, iface
);
448 snd_soc_write(codec
, WM8510_ADD
, adn
);
452 static int wm8510_mute(struct snd_soc_dai
*dai
, int mute
)
454 struct snd_soc_codec
*codec
= dai
->codec
;
455 u16 mute_reg
= snd_soc_read(codec
, WM8510_DAC
) & 0xffbf;
458 snd_soc_write(codec
, WM8510_DAC
, mute_reg
| 0x40);
460 snd_soc_write(codec
, WM8510_DAC
, mute_reg
);
464 /* liam need to make this lower power with dapm */
465 static int wm8510_set_bias_level(struct snd_soc_codec
*codec
,
466 enum snd_soc_bias_level level
)
468 u16 power1
= snd_soc_read(codec
, WM8510_POWER1
) & ~0x3;
471 case SND_SOC_BIAS_ON
:
472 case SND_SOC_BIAS_PREPARE
:
473 power1
|= 0x1; /* VMID 50k */
474 snd_soc_write(codec
, WM8510_POWER1
, power1
);
477 case SND_SOC_BIAS_STANDBY
:
478 power1
|= WM8510_POWER1_BIASEN
| WM8510_POWER1_BUFIOEN
;
480 if (codec
->bias_level
== SND_SOC_BIAS_OFF
) {
481 /* Initial cap charge at VMID 5k */
482 snd_soc_write(codec
, WM8510_POWER1
, power1
| 0x3);
486 power1
|= 0x2; /* VMID 500k */
487 snd_soc_write(codec
, WM8510_POWER1
, power1
);
490 case SND_SOC_BIAS_OFF
:
491 snd_soc_write(codec
, WM8510_POWER1
, 0);
492 snd_soc_write(codec
, WM8510_POWER2
, 0);
493 snd_soc_write(codec
, WM8510_POWER3
, 0);
497 codec
->bias_level
= level
;
501 #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
502 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
503 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
505 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
506 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
508 static struct snd_soc_dai_ops wm8510_dai_ops
= {
509 .hw_params
= wm8510_pcm_hw_params
,
510 .digital_mute
= wm8510_mute
,
511 .set_fmt
= wm8510_set_dai_fmt
,
512 .set_clkdiv
= wm8510_set_dai_clkdiv
,
513 .set_pll
= wm8510_set_dai_pll
,
516 struct snd_soc_dai wm8510_dai
= {
517 .name
= "WM8510 HiFi",
519 .stream_name
= "Playback",
522 .rates
= WM8510_RATES
,
523 .formats
= WM8510_FORMATS
,},
525 .stream_name
= "Capture",
528 .rates
= WM8510_RATES
,
529 .formats
= WM8510_FORMATS
,},
530 .ops
= &wm8510_dai_ops
,
531 .symmetric_rates
= 1,
533 EXPORT_SYMBOL_GPL(wm8510_dai
);
535 static int wm8510_suspend(struct platform_device
*pdev
, pm_message_t state
)
537 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
538 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
540 wm8510_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
544 static int wm8510_resume(struct platform_device
*pdev
)
546 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
547 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
550 u16
*cache
= codec
->reg_cache
;
552 /* Sync reg_cache with the hardware */
553 for (i
= 0; i
< ARRAY_SIZE(wm8510_reg
); i
++) {
554 data
[0] = (i
<< 1) | ((cache
[i
] >> 8) & 0x0001);
555 data
[1] = cache
[i
] & 0x00ff;
556 codec
->hw_write(codec
->control_data
, data
, 2);
558 wm8510_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
559 wm8510_set_bias_level(codec
, codec
->suspend_bias_level
);
564 * initialise the WM8510 driver
565 * register the mixer and dsp interfaces with the kernel
567 static int wm8510_init(struct snd_soc_device
*socdev
,
568 enum snd_soc_control_type control
)
570 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
573 codec
->name
= "WM8510";
574 codec
->owner
= THIS_MODULE
;
575 codec
->set_bias_level
= wm8510_set_bias_level
;
576 codec
->dai
= &wm8510_dai
;
578 codec
->reg_cache_size
= ARRAY_SIZE(wm8510_reg
);
579 codec
->reg_cache
= kmemdup(wm8510_reg
, sizeof(wm8510_reg
), GFP_KERNEL
);
581 if (codec
->reg_cache
== NULL
)
584 ret
= snd_soc_codec_set_cache_io(codec
, 7, 9, control
);
586 printk(KERN_ERR
"wm8510: failed to set cache I/O: %d\n",
594 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
596 printk(KERN_ERR
"wm8510: failed to create pcms\n");
600 /* power on device */
601 codec
->bias_level
= SND_SOC_BIAS_OFF
;
602 wm8510_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
603 snd_soc_add_controls(codec
, wm8510_snd_controls
,
604 ARRAY_SIZE(wm8510_snd_controls
));
605 wm8510_add_widgets(codec
);
610 kfree(codec
->reg_cache
);
614 static struct snd_soc_device
*wm8510_socdev
;
616 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
619 * WM8510 2 wire address is 0x1a
622 static int wm8510_i2c_probe(struct i2c_client
*i2c
,
623 const struct i2c_device_id
*id
)
625 struct snd_soc_device
*socdev
= wm8510_socdev
;
626 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
629 i2c_set_clientdata(i2c
, codec
);
630 codec
->control_data
= i2c
;
632 ret
= wm8510_init(socdev
, SND_SOC_I2C
);
634 pr_err("failed to initialise WM8510\n");
639 static int wm8510_i2c_remove(struct i2c_client
*client
)
641 struct snd_soc_codec
*codec
= i2c_get_clientdata(client
);
642 kfree(codec
->reg_cache
);
646 static const struct i2c_device_id wm8510_i2c_id
[] = {
650 MODULE_DEVICE_TABLE(i2c
, wm8510_i2c_id
);
652 static struct i2c_driver wm8510_i2c_driver
= {
654 .name
= "WM8510 I2C Codec",
655 .owner
= THIS_MODULE
,
657 .probe
= wm8510_i2c_probe
,
658 .remove
= wm8510_i2c_remove
,
659 .id_table
= wm8510_i2c_id
,
662 static int wm8510_add_i2c_device(struct platform_device
*pdev
,
663 const struct wm8510_setup_data
*setup
)
665 struct i2c_board_info info
;
666 struct i2c_adapter
*adapter
;
667 struct i2c_client
*client
;
670 ret
= i2c_add_driver(&wm8510_i2c_driver
);
672 dev_err(&pdev
->dev
, "can't add i2c driver\n");
676 memset(&info
, 0, sizeof(struct i2c_board_info
));
677 info
.addr
= setup
->i2c_address
;
678 strlcpy(info
.type
, "wm8510", I2C_NAME_SIZE
);
680 adapter
= i2c_get_adapter(setup
->i2c_bus
);
682 dev_err(&pdev
->dev
, "can't get i2c adapter %d\n",
687 client
= i2c_new_device(adapter
, &info
);
688 i2c_put_adapter(adapter
);
690 dev_err(&pdev
->dev
, "can't add i2c device at 0x%x\n",
691 (unsigned int)info
.addr
);
698 i2c_del_driver(&wm8510_i2c_driver
);
703 #if defined(CONFIG_SPI_MASTER)
704 static int __devinit
wm8510_spi_probe(struct spi_device
*spi
)
706 struct snd_soc_device
*socdev
= wm8510_socdev
;
707 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
710 codec
->control_data
= spi
;
712 ret
= wm8510_init(socdev
, SND_SOC_SPI
);
714 dev_err(&spi
->dev
, "failed to initialise WM8510\n");
719 static int __devexit
wm8510_spi_remove(struct spi_device
*spi
)
724 static struct spi_driver wm8510_spi_driver
= {
727 .bus
= &spi_bus_type
,
728 .owner
= THIS_MODULE
,
730 .probe
= wm8510_spi_probe
,
731 .remove
= __devexit_p(wm8510_spi_remove
),
733 #endif /* CONFIG_SPI_MASTER */
735 static int wm8510_probe(struct platform_device
*pdev
)
737 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
738 struct wm8510_setup_data
*setup
;
739 struct snd_soc_codec
*codec
;
742 pr_info("WM8510 Audio Codec %s", WM8510_VERSION
);
744 setup
= socdev
->codec_data
;
745 codec
= kzalloc(sizeof(struct snd_soc_codec
), GFP_KERNEL
);
749 socdev
->card
->codec
= codec
;
750 mutex_init(&codec
->mutex
);
751 INIT_LIST_HEAD(&codec
->dapm_widgets
);
752 INIT_LIST_HEAD(&codec
->dapm_paths
);
754 wm8510_socdev
= socdev
;
755 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
756 if (setup
->i2c_address
) {
757 ret
= wm8510_add_i2c_device(pdev
, setup
);
760 #if defined(CONFIG_SPI_MASTER)
762 ret
= spi_register_driver(&wm8510_spi_driver
);
764 printk(KERN_ERR
"can't add spi driver");
773 /* power down chip */
774 static int wm8510_remove(struct platform_device
*pdev
)
776 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
777 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
779 if (codec
->control_data
)
780 wm8510_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
782 snd_soc_free_pcms(socdev
);
783 snd_soc_dapm_free(socdev
);
784 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
785 i2c_unregister_device(codec
->control_data
);
786 i2c_del_driver(&wm8510_i2c_driver
);
788 #if defined(CONFIG_SPI_MASTER)
789 spi_unregister_driver(&wm8510_spi_driver
);
796 struct snd_soc_codec_device soc_codec_dev_wm8510
= {
797 .probe
= wm8510_probe
,
798 .remove
= wm8510_remove
,
799 .suspend
= wm8510_suspend
,
800 .resume
= wm8510_resume
,
802 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8510
);
804 static int __init
wm8510_modinit(void)
806 return snd_soc_register_dai(&wm8510_dai
);
808 module_init(wm8510_modinit
);
810 static void __exit
wm8510_exit(void)
812 snd_soc_unregister_dai(&wm8510_dai
);
814 module_exit(wm8510_exit
);
816 MODULE_DESCRIPTION("ASoC WM8510 driver");
817 MODULE_AUTHOR("Liam Girdwood");
818 MODULE_LICENSE("GPL");