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Mark Brown
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--- | ||
refs/heads/master: 417ceff939bc61d4c71d24f071fad3f20ba4a1bd | ||
refs/heads/master: 22cb839bc8545b3a68ae00107cae3636752bb94d |
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/* | ||
* Speyside with WM8962 audio support | ||
* | ||
* Copyright 2011 Wolfson Microelectronics | ||
* | ||
* This program is free software; you can redistribute it and/or modify it | ||
* under the terms of the GNU General Public License as published by the | ||
* Free Software Foundation; either version 2 of the License, or (at your | ||
* option) any later version. | ||
*/ | ||
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#include <sound/soc.h> | ||
#include <sound/soc-dapm.h> | ||
#include <sound/jack.h> | ||
#include <linux/gpio.h> | ||
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#include "../codecs/wm8962.h" | ||
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static int speyside_wm8962_set_bias_level(struct snd_soc_card *card, | ||
struct snd_soc_dapm_context *dapm, | ||
enum snd_soc_bias_level level) | ||
{ | ||
struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | ||
int ret; | ||
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switch (level) { | ||
case SND_SOC_BIAS_PREPARE: | ||
if (dapm->bias_level == SND_SOC_BIAS_STANDBY) { | ||
ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL, | ||
WM8962_FLL_MCLK, 32768, | ||
44100 * 256); | ||
if (ret < 0) | ||
pr_err("Failed to start FLL\n"); | ||
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ret = snd_soc_dai_set_sysclk(codec_dai, | ||
WM8962_SYSCLK_FLL, | ||
44100 * 256, | ||
SND_SOC_CLOCK_IN); | ||
if (ret < 0) | ||
return ret; | ||
} | ||
break; | ||
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default: | ||
break; | ||
} | ||
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return 0; | ||
} | ||
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static int speyside_wm8962_set_bias_level_post(struct snd_soc_card *card, | ||
struct snd_soc_dapm_context *dapm, | ||
enum snd_soc_bias_level level) | ||
{ | ||
struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | ||
int ret; | ||
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switch (level) { | ||
case SND_SOC_BIAS_STANDBY: | ||
ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK, | ||
32768, SND_SOC_CLOCK_IN); | ||
if (ret < 0) | ||
return ret; | ||
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ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL, | ||
0, 0, 0); | ||
if (ret < 0) { | ||
pr_err("Failed to stop FLL\n"); | ||
return ret; | ||
} | ||
break; | ||
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default: | ||
break; | ||
} | ||
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dapm->bias_level = level; | ||
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return 0; | ||
} | ||
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static int speyside_wm8962_hw_params(struct snd_pcm_substream *substream, | ||
struct snd_pcm_hw_params *params) | ||
{ | ||
struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | ||
struct snd_soc_dai *codec_dai = rtd->codec_dai; | ||
int ret; | ||
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | ||
| SND_SOC_DAIFMT_NB_NF | ||
| SND_SOC_DAIFMT_CBM_CFM); | ||
if (ret < 0) | ||
return ret; | ||
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | ||
| SND_SOC_DAIFMT_NB_NF | ||
| SND_SOC_DAIFMT_CBM_CFM); | ||
if (ret < 0) | ||
return ret; | ||
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return 0; | ||
} | ||
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static struct snd_soc_ops speyside_wm8962_ops = { | ||
.hw_params = speyside_wm8962_hw_params, | ||
}; | ||
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static struct snd_soc_dai_link speyside_wm8962_dai[] = { | ||
{ | ||
.name = "CPU", | ||
.stream_name = "CPU", | ||
.cpu_dai_name = "samsung-i2s.0", | ||
.codec_dai_name = "wm8962", | ||
.platform_name = "samsung-audio", | ||
.codec_name = "wm8962.1-001a", | ||
.ops = &speyside_wm8962_ops, | ||
}, | ||
}; | ||
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static const struct snd_kcontrol_new controls[] = { | ||
SOC_DAPM_PIN_SWITCH("Main Speaker"), | ||
}; | ||
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static struct snd_soc_dapm_widget widgets[] = { | ||
SND_SOC_DAPM_HP("Headphone", NULL), | ||
SND_SOC_DAPM_MIC("Headset Mic", NULL), | ||
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SND_SOC_DAPM_MIC("DMIC", NULL), | ||
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SND_SOC_DAPM_SPK("Main Speaker", NULL), | ||
}; | ||
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static struct snd_soc_dapm_route audio_paths[] = { | ||
{ "Headphone", NULL, "HPOUTL" }, | ||
{ "Headphone", NULL, "HPOUTR" }, | ||
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{ "Main Speaker", NULL, "SPKOUTL" }, | ||
{ "Main Speaker", NULL, "SPKOUTR" }, | ||
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{ "MICBIAS", NULL, "Headset Mic" }, | ||
{ "IN4L", NULL, "MICBIAS" }, | ||
{ "IN4R", NULL, "MICBIAS" }, | ||
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{ "MICBIAS", NULL, "DMIC" }, | ||
{ "DMICDAT", NULL, "MICBIAS" }, | ||
}; | ||
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static struct snd_soc_jack speyside_wm8962_headset; | ||
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/* Headset jack detection DAPM pins */ | ||
static struct snd_soc_jack_pin speyside_wm8962_headset_pins[] = { | ||
{ | ||
.pin = "Headset Mic", | ||
.mask = SND_JACK_MICROPHONE, | ||
}, | ||
{ | ||
.pin = "Headphone", | ||
.mask = SND_JACK_MICROPHONE, | ||
}, | ||
}; | ||
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static int speyside_wm8962_late_probe(struct snd_soc_card *card) | ||
{ | ||
struct snd_soc_codec *codec = card->rtd[0].codec; | ||
struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | ||
int ret; | ||
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK, | ||
32768, SND_SOC_CLOCK_IN); | ||
if (ret < 0) | ||
return ret; | ||
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ret = snd_soc_jack_new(codec, "Headset", | ||
SND_JACK_HEADSET | SND_JACK_BTN_0, | ||
&speyside_wm8962_headset); | ||
if (ret) | ||
return ret; | ||
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ret = snd_soc_jack_add_pins(&speyside_wm8962_headset, | ||
ARRAY_SIZE(speyside_wm8962_headset_pins), | ||
speyside_wm8962_headset_pins); | ||
if (ret) | ||
return ret; | ||
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wm8962_mic_detect(codec, &speyside_wm8962_headset); | ||
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return 0; | ||
} | ||
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static struct snd_soc_card speyside_wm8962 = { | ||
.name = "Speyside WM8962", | ||
.dai_link = speyside_wm8962_dai, | ||
.num_links = ARRAY_SIZE(speyside_wm8962_dai), | ||
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.set_bias_level = speyside_wm8962_set_bias_level, | ||
.set_bias_level_post = speyside_wm8962_set_bias_level_post, | ||
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.controls = controls, | ||
.num_controls = ARRAY_SIZE(controls), | ||
.dapm_widgets = widgets, | ||
.num_dapm_widgets = ARRAY_SIZE(widgets), | ||
.dapm_routes = audio_paths, | ||
.num_dapm_routes = ARRAY_SIZE(audio_paths), | ||
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.late_probe = speyside_wm8962_late_probe, | ||
}; | ||
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static __devinit int speyside_wm8962_probe(struct platform_device *pdev) | ||
{ | ||
struct snd_soc_card *card = &speyside_wm8962; | ||
int ret; | ||
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card->dev = &pdev->dev; | ||
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ret = snd_soc_register_card(card); | ||
if (ret) { | ||
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | ||
ret); | ||
return ret; | ||
} | ||
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return 0; | ||
} | ||
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static int __devexit speyside_wm8962_remove(struct platform_device *pdev) | ||
{ | ||
struct snd_soc_card *card = platform_get_drvdata(pdev); | ||
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snd_soc_unregister_card(card); | ||
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return 0; | ||
} | ||
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static struct platform_driver speyside_wm8962_driver = { | ||
.driver = { | ||
.name = "speyside-wm8962", | ||
.owner = THIS_MODULE, | ||
.pm = &snd_soc_pm_ops, | ||
}, | ||
.probe = speyside_wm8962_probe, | ||
.remove = __devexit_p(speyside_wm8962_remove), | ||
}; | ||
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static int __init speyside_wm8962_audio_init(void) | ||
{ | ||
return platform_driver_register(&speyside_wm8962_driver); | ||
} | ||
module_init(speyside_wm8962_audio_init); | ||
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static void __exit speyside_wm8962_audio_exit(void) | ||
{ | ||
platform_driver_unregister(&speyside_wm8962_driver); | ||
} | ||
module_exit(speyside_wm8962_audio_exit); | ||
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MODULE_DESCRIPTION("Speyside WM8962 audio support"); | ||
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | ||
MODULE_LICENSE("GPL"); | ||
MODULE_ALIAS("platform:speyside-wm8962"); |