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/*
* Copyright (C) 2014 Marvell
*
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
*
* 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 <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/soc.h>
#include <linux/of.h>
#include <linux/platform_data/asoc-kirkwood.h>
#include "../codecs/cs42l51.h"
static int a370db_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 freq;
switch (params_rate(params)) {
default:
case 44100:
freq = 11289600;
break;
case 48000:
freq = 12288000;
break;
case 96000:
freq = 24576000;
break;
}
return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
}
static struct snd_soc_ops a370db_ops = {
.hw_params = a370db_hw_params,
};
static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
SND_SOC_DAPM_HP("Out Jack", NULL),
SND_SOC_DAPM_LINE("In Jack", NULL),
};
static const struct snd_soc_dapm_route a370db_route[] = {
{ "Out Jack", NULL, "HPL" },
{ "Out Jack", NULL, "HPR" },
{ "AIN1L", NULL, "In Jack" },
{ "AIN1L", NULL, "In Jack" },
};
static struct snd_soc_dai_link a370db_dai[] = {
{
.name = "CS42L51",
.stream_name = "analog",
.cpu_dai_name = "i2s",
.codec_dai_name = "cs42l51-hifi",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
.ops = &a370db_ops,
},
{
.name = "S/PDIF out",
.stream_name = "spdif-out",
.cpu_dai_name = "spdif",
.codec_dai_name = "dit-hifi",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
},
{
.name = "S/PDIF in",
.stream_name = "spdif-in",
.cpu_dai_name = "spdif",
.codec_dai_name = "dir-hifi",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
},
};
static struct snd_soc_card a370db = {
.name = "a370db",
.owner = THIS_MODULE,
.dai_link = a370db_dai,
.num_links = ARRAY_SIZE(a370db_dai),
.dapm_widgets = a370db_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
.dapm_routes = a370db_route,
.num_dapm_routes = ARRAY_SIZE(a370db_route),
};
static int a370db_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &a370db;
card->dev = &pdev->dev;
a370db_dai[0].cpu_of_node =
of_parse_phandle(pdev->dev.of_node,
"marvell,audio-controller", 0);
a370db_dai[0].platform_of_node = a370db_dai[0].cpu_of_node;
a370db_dai[0].codec_of_node =
of_parse_phandle(pdev->dev.of_node,
"marvell,audio-codec", 0);
a370db_dai[1].cpu_of_node = a370db_dai[0].cpu_of_node;
a370db_dai[1].platform_of_node = a370db_dai[0].cpu_of_node;
a370db_dai[1].codec_of_node =
of_parse_phandle(pdev->dev.of_node,
"marvell,audio-codec", 1);
a370db_dai[2].cpu_of_node = a370db_dai[0].cpu_of_node;
a370db_dai[2].platform_of_node = a370db_dai[0].cpu_of_node;
a370db_dai[2].codec_of_node =
of_parse_phandle(pdev->dev.of_node,
"marvell,audio-codec", 2);
return devm_snd_soc_register_card(card->dev, card);
}
static const struct of_device_id a370db_dt_ids[] = {
{ .compatible = "marvell,a370db-audio" },
{ },
};
MODULE_DEVICE_TABLE(of, a370db_dt_ids);
static struct platform_driver a370db_driver = {
.driver = {
.name = "a370db-audio",
.of_match_table = of_match_ptr(a370db_dt_ids),
},
.probe = a370db_probe,
};
module_platform_driver(a370db_driver);
MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
MODULE_DESCRIPTION("ALSA SoC a370db audio client");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:a370db-audio");
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