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/*
* Speyside 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.
*/
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include "../codecs/wm8915.h"
static int speyside_set_bias_level(struct snd_soc_card *card,
enum snd_soc_bias_level level)
{
struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
int ret;
switch (level) {
case SND_SOC_BIAS_STANDBY:
ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_MCLK1,
32768, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_pll(codec_dai, WM8915_FLL_MCLK1,
0, 0, 0);
if (ret < 0) {
pr_err("Failed to stop FLL\n");
return ret;
}
default:
break;
}
return 0;
}
static int speyside_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;
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;
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;
ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK1,
32768, 256 * 48000);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL,
256 * 48000, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
return 0;
}
static struct snd_soc_ops speyside_ops = {
.hw_params = speyside_hw_params,
};
static int speyside_wm8915_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *dai = rtd->codec_dai;
return snd_soc_dai_set_sysclk(dai, WM8915_SYSCLK_MCLK1, 32768, 0);
}
static struct snd_soc_dai_link speyside_dai[] = {
{
.name = "CPU",
.stream_name = "CPU",
.cpu_dai_name = "samsung-i2s.0",
.codec_dai_name = "wm8915-aif1",
.platform_name = "samsung-audio",
.codec_name = "wm8915.1-001a",
.init = speyside_wm8915_init,
.ops = &speyside_ops,
},
};
static struct snd_soc_dapm_widget widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_SPK("Main Speaker", NULL),
SND_SOC_DAPM_MIC("Main AMIC", NULL),
SND_SOC_DAPM_MIC("Main DMIC", NULL),
};
static struct snd_soc_dapm_route audio_paths[] = {
{ "IN1LP", NULL, "MICB2" },
{ "MICB2", NULL, "Main AMIC" },
{ "DMIC1DAT", NULL, "MICB1" },
{ "DMIC2DAT", NULL, "MICB1" },
{ "MICB1", NULL, "Main DMIC" },
{ "Headphone", NULL, "HPOUT1L" },
{ "Headphone", NULL, "HPOUT1R" },
{ "Main Speaker", NULL, "SPKDAT" },
};
static struct snd_soc_card speyside = {
.name = "Speyside",
.dai_link = speyside_dai,
.num_links = ARRAY_SIZE(speyside_dai),
.set_bias_level = speyside_set_bias_level,
.dapm_widgets = widgets,
.num_dapm_widgets = ARRAY_SIZE(widgets),
.dapm_routes = audio_paths,
.num_dapm_routes = ARRAY_SIZE(audio_paths),
};
static __devinit int speyside_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &speyside;
int ret;
card->dev = &pdev->dev;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
return 0;
}
static int __devexit speyside_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static struct platform_driver speyside_driver = {
.driver = {
.name = "speyside",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
},
.probe = speyside_probe,
.remove = __devexit_p(speyside_remove),
};
static int __init speyside_audio_init(void)
{
return platform_driver_register(&speyside_driver);
}
module_init(speyside_audio_init);
static void __exit speyside_audio_exit(void)
{
platform_driver_unregister(&speyside_driver);
}
module_exit(speyside_audio_exit);
MODULE_DESCRIPTION("Speyside audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:speyside");
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