mirror of
https://github.com/torvalds/linux.git
synced 2024-12-21 02:21:36 +00:00
2e8693ee79
This patch is adding support for openrd client platforms. It's using the cs42l51 codec and has one mic and one speaker plugs. Signed-off-by: Arnaud Patard <apatard@mandriva.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
/*
|
|
* kirkwood-openrd.c
|
|
*
|
|
* (c) 2010 Arnaud Patard <apatard@mandriva.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 <mach/kirkwood.h>
|
|
#include <plat/audio.h>
|
|
#include <asm/mach-types.h>
|
|
#include "kirkwood-i2s.h"
|
|
#include "kirkwood-dma.h"
|
|
#include "../codecs/cs42l51.h"
|
|
|
|
static int openrd_client_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->dai->codec_dai;
|
|
struct snd_soc_dai *cpu_dai = rtd->dai->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;
|
|
|
|
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 openrd_client_ops = {
|
|
.hw_params = openrd_client_hw_params,
|
|
};
|
|
|
|
|
|
static struct snd_soc_dai_link openrd_client_dai[] = {
|
|
{
|
|
.name = "CS42L51",
|
|
.stream_name = "CS42L51 HiFi",
|
|
.cpu_dai = &kirkwood_i2s_dai,
|
|
.codec_dai = &cs42l51_dai,
|
|
.ops = &openrd_client_ops,
|
|
},
|
|
};
|
|
|
|
|
|
static struct snd_soc_card openrd_client = {
|
|
.name = "OpenRD Client",
|
|
.platform = &kirkwood_soc_platform,
|
|
.dai_link = openrd_client_dai,
|
|
.num_links = ARRAY_SIZE(openrd_client_dai),
|
|
};
|
|
|
|
static struct snd_soc_device openrd_client_snd_devdata = {
|
|
.card = &openrd_client,
|
|
.codec_dev = &soc_codec_device_cs42l51,
|
|
};
|
|
|
|
static struct platform_device *openrd_client_snd_device;
|
|
|
|
static int __init openrd_client_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!machine_is_openrd_client())
|
|
return 0;
|
|
|
|
openrd_client_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!openrd_client_snd_device)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(openrd_client_snd_device,
|
|
&openrd_client_snd_devdata);
|
|
openrd_client_snd_devdata.dev = &openrd_client_snd_device->dev;
|
|
|
|
ret = platform_device_add(openrd_client_snd_device);
|
|
if (ret) {
|
|
printk(KERN_ERR "%s: platform_device_add failed\n", __func__);
|
|
platform_device_put(openrd_client_snd_device);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __exit openrd_client_exit(void)
|
|
{
|
|
platform_device_unregister(openrd_client_snd_device);
|
|
}
|
|
|
|
module_init(openrd_client_init);
|
|
module_exit(openrd_client_exit);
|
|
|
|
/* Module information */
|
|
MODULE_AUTHOR("Arnaud Patard <apatard@mandriva.com>");
|
|
MODULE_DESCRIPTION("ALSA SoC OpenRD Client");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:soc-audio");
|