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/*
* kirkwood-t5325.c
*
* (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
*
* 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 <mach/kirkwood.h>
#include <plat/audio.h>
#include <asm/mach-types.h>
#include "../codecs/alc5623.h"
static int t5325_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;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int ret;
unsigned int freq, fmt;
fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS;
ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_fmt(codec_dai, fmt);
if (ret < 0)
return ret;
freq = params_rate(params) * 256;
return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
}
static struct snd_soc_ops t5325_ops = {
.hw_params = t5325_hw_params,
};
static const struct snd_soc_dapm_widget t5325_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_MIC("Mic Jack", NULL),
};
static const struct snd_soc_dapm_route t5325_route[] = {
{ "Headphone Jack", NULL, "HPL" },
{ "Headphone Jack", NULL, "HPR" },
{"Speaker", NULL, "SPKOUT"},
{"Speaker", NULL, "SPKOUTN"},
{ "MIC1", NULL, "Mic Jack" },
{ "MIC2", NULL, "Mic Jack" },
};
static int t5325_dai_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
snd_soc_dapm_new_controls(dapm, t5325_dapm_widgets,
ARRAY_SIZE(t5325_dapm_widgets));
snd_soc_dapm_add_routes(dapm, t5325_route, ARRAY_SIZE(t5325_route));
snd_soc_dapm_enable_pin(dapm, "Mic Jack");
snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
snd_soc_dapm_enable_pin(dapm, "Speaker");
return 0;
}
static struct snd_soc_dai_link t5325_dai[] = {
{
.name = "ALC5621",
.stream_name = "ALC5621 HiFi",
.cpu_dai_name = "kirkwood-i2s",
.platform_name = "kirkwood-pcm-audio",
.codec_dai_name = "alc5621-hifi",
.codec_name = "alc562x-codec.0-001a",
.ops = &t5325_ops,
.init = t5325_dai_init,
},
};
static struct snd_soc_card t5325 = {
.name = "t5325",
.owner = THIS_MODULE,
.dai_link = t5325_dai,
.num_links = ARRAY_SIZE(t5325_dai),
};
static struct platform_device *t5325_snd_device;
static int __init t5325_init(void)
{
int ret;
if (!machine_is_t5325())
return 0;
t5325_snd_device = platform_device_alloc("soc-audio", -1);
if (!t5325_snd_device)
return -ENOMEM;
platform_set_drvdata(t5325_snd_device,
&t5325);
ret = platform_device_add(t5325_snd_device);
if (ret) {
printk(KERN_ERR "%s: platform_device_add failed\n", __func__);
platform_device_put(t5325_snd_device);
}
return ret;
}
module_init(t5325_init);
static void __exit t5325_exit(void)
{
platform_device_unregister(t5325_snd_device);
}
module_exit(t5325_exit);
MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
MODULE_DESCRIPTION("ALSA SoC t5325 audio client");
MODULE_LICENSE("GPL");
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