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ASoC: Intel: Add machine driver for Baytrail SST with RT5640 codec

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Add machine driver for Baytrail SST DSP platform with RT5640 audio codec.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Jarkko Nikula 2014-02-24 17:27:00 +02:00 committed by Mark Brown
parent aef1311a7d
commit 6439c8ad1e
1 changed files with 194 additions and 0 deletions
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194
sound/soc/intel/byt-rt5640.c Normal file
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/*
* Intel Baytrail SST RT5640 machine driver
* Copyright (c) 2014, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include "../codecs/rt5640.h"
#include "sst-dsp.h"
static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
SND_SOC_DAPM_SPK("Ext Spk", NULL),
};
static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
{"IN2P", NULL, "Headset Mic"},
{"IN2N", NULL, "Headset Mic"},
{"DMIC1", NULL, "Int Mic"},
{"Headphone", NULL, "HPOL"},
{"Headphone", NULL, "HPOR"},
{"Ext Spk", NULL, "SPOLP"},
{"Ext Spk", NULL, "SPOLN"},
{"Ext Spk", NULL, "SPORP"},
{"Ext Spk", NULL, "SPORN"},
};
static const struct snd_kcontrol_new byt_rt5640_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
SOC_DAPM_PIN_SWITCH("Ext Spk"),
};
static int byt_rt5640_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 *codec_dai = rtd->codec_dai;
unsigned int fmt;
int ret;
fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS;
ret = snd_soc_dai_set_fmt(codec_dai, fmt);
if (ret < 0) {
dev_err(codec_dai->dev,
"can't set codec DAI configuration %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
params_rate(params) * 256,
SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->dev, "can't set codec clock %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
params_rate(params) * 64,
params_rate(params) * 256);
if (ret < 0) {
dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
return ret;
}
return 0;
}
static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
{
int ret;
struct snd_soc_codec *codec = runtime->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
struct snd_soc_card *card = runtime->card;
card->dapm.idle_bias_off = true;
ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
ARRAY_SIZE(byt_rt5640_controls));
if (ret) {
dev_err(card->dev, "unable to add card controls\n");
return ret;
}
snd_soc_dapm_ignore_suspend(dapm, "HPOL");
snd_soc_dapm_ignore_suspend(dapm, "HPOR");
snd_soc_dapm_ignore_suspend(dapm, "SPOLP");
snd_soc_dapm_ignore_suspend(dapm, "SPOLN");
snd_soc_dapm_ignore_suspend(dapm, "SPORP");
snd_soc_dapm_ignore_suspend(dapm, "SPORN");
snd_soc_dapm_enable_pin(dapm, "Headset Mic");
snd_soc_dapm_enable_pin(dapm, "Headphone");
snd_soc_dapm_enable_pin(dapm, "Ext Spk");
snd_soc_dapm_enable_pin(dapm, "Int Mic");
snd_soc_dapm_sync(dapm);
return ret;
}
static struct snd_soc_ops byt_rt5640_ops = {
.hw_params = byt_rt5640_hw_params,
};
static struct snd_soc_dai_link byt_rt5640_dais[] = {
{
.name = "Baytrail Audio",
.stream_name = "Audio",
.cpu_dai_name = "Front-cpu-dai",
.codec_dai_name = "rt5640-aif1",
.codec_name = "i2c-10EC5640:00",
.platform_name = "baytrail-pcm-audio",
.init = byt_rt5640_init,
.ignore_suspend = 1,
.ops = &byt_rt5640_ops,
},
{
.name = "Baytrail Voice",
.stream_name = "Voice",
.cpu_dai_name = "Mic1-cpu-dai",
.codec_dai_name = "rt5640-aif1",
.codec_name = "i2c-10EC5640:00",
.platform_name = "baytrail-pcm-audio",
.init = NULL,
.ignore_suspend = 1,
.ops = &byt_rt5640_ops,
},
};
static struct snd_soc_card byt_rt5640_card = {
.name = "byt-rt5640",
.dai_link = byt_rt5640_dais,
.num_links = ARRAY_SIZE(byt_rt5640_dais),
.dapm_widgets = byt_rt5640_widgets,
.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
.dapm_routes = byt_rt5640_audio_map,
.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
};
static int byt_rt5640_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &byt_rt5640_card;
struct device *dev = &pdev->dev;
card->dev = &pdev->dev;
dev_set_drvdata(dev, card);
return snd_soc_register_card(card);
}
static int byt_rt5640_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 byt_rt5640_audio = {
.probe = byt_rt5640_probe,
.remove = byt_rt5640_remove,
.driver = {
.name = "byt-rt5640",
.owner = THIS_MODULE,
},
};
module_platform_driver(byt_rt5640_audio)
MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:byt-rt5640");