forked from Minki/linux
157 lines
4.3 KiB
C
157 lines
4.3 KiB
C
/*
|
|
* 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("Internal Mic", NULL),
|
|
SND_SOC_DAPM_SPK("Speaker", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
|
|
{"IN2P", NULL, "Headset Mic"},
|
|
{"IN2N", NULL, "Headset Mic"},
|
|
{"DMIC1", NULL, "Internal Mic"},
|
|
{"Headphone", NULL, "HPOL"},
|
|
{"Headphone", NULL, "HPOR"},
|
|
{"Speaker", NULL, "SPOLP"},
|
|
{"Speaker", NULL, "SPOLN"},
|
|
{"Speaker", NULL, "SPORP"},
|
|
{"Speaker", 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("Internal Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Speaker"),
|
|
};
|
|
|
|
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;
|
|
int 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");
|
|
|
|
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 = "baytrail-pcm-audio",
|
|
.codec_dai_name = "rt5640-aif1",
|
|
.codec_name = "i2c-10EC5640:00",
|
|
.platform_name = "baytrail-pcm-audio",
|
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBS_CFS,
|
|
.init = byt_rt5640_init,
|
|
.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;
|
|
|
|
card->dev = &pdev->dev;
|
|
return devm_snd_soc_register_card(&pdev->dev, card);
|
|
}
|
|
|
|
static struct platform_driver byt_rt5640_audio = {
|
|
.probe = byt_rt5640_probe,
|
|
.driver = {
|
|
.name = "byt-rt5640",
|
|
.owner = THIS_MODULE,
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
};
|
|
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");
|