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Commit 2e8693ee authored by apatard@mandriva.com's avatar apatard@mandriva.com Committed by Mark Brown
Browse files

ASoC: kirkwood: Add audio support to openrd client platforms 



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: default avatarArnaud Patard <apatard@mandriva.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent f9b95980

sound/soc/kirkwood/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -9,3 +9,12 @@ config SND_KIRKWOOD_SOC 
config SND_KIRKWOOD_SOC_I2S

	tristate



config SND_KIRKWOOD_SOC_OPENRD

	tristate "SoC Audio support for Kirkwood Openrd Client"

	depends on SND_KIRKWOOD_SOC && MACH_OPENRD_CLIENT

	select SND_KIRKWOOD_SOC_I2S

	select SND_SOC_CS42L51

	help

	  Say Y if you want to add support for SoC audio on

	  Openrd Client.

sound/soc/kirkwood/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -4,3 +4,6 @@ snd-soc-kirkwood-i2s-objs := kirkwood-i2s.o 
obj-$(CONFIG_SND_KIRKWOOD_SOC) += snd-soc-kirkwood.o

obj-$(CONFIG_SND_KIRKWOOD_SOC_I2S) += snd-soc-kirkwood-i2s.o



snd-soc-openrd-objs := kirkwood-openrd.o



obj-$(CONFIG_SND_KIRKWOOD_SOC_OPENRD) += snd-soc-openrd.o

sound/soc/kirkwood/kirkwood-openrd.c

0 → 100644
+126 −0
Original line number Diff line number Diff line 
/*

 * 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");