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/*
* phycore-ac97.c -- SoC audio for imx_phycore in AC97 mode
*
* Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
*
* 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/device.h>
#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>
#include <mach/audmux.h>
static struct snd_soc_card imx_phycore;
static struct snd_soc_ops imx_phycore_hifi_ops = {
};
static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
{
.name = "HiFi",
.stream_name = "HiFi",
.codec_dai_name = "wm9712-hifi",
.codec_name = "wm9712-codec",
.cpu_dai_name = "imx-ssi.0",
.platform_name = "imx-fiq-pcm-audio.0",
.ops = &imx_phycore_hifi_ops,
},
};
static struct snd_soc_card imx_phycore = {
.name = "PhyCORE-ac97-audio",
.owner = THIS_MODULE,
.dai_link = imx_phycore_dai_ac97,
.num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
};
static struct platform_device *imx_phycore_snd_ac97_device;
static struct platform_device *imx_phycore_snd_device;
static int __init imx_phycore_init(void)
{
int ret;
if (machine_is_pca100()) {
mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
MXC_AUDMUX_V1_PCR_TFCSEL(3) |
MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
MXC_AUDMUX_V1_PCR_RXDSEL(3));
mxc_audmux_v1_configure_port(3,
MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
MXC_AUDMUX_V1_PCR_TFCSEL(0) |
MXC_AUDMUX_V1_PCR_TFSDIR |
MXC_AUDMUX_V1_PCR_RXDSEL(0));
} else if (machine_is_pcm043()) {
mxc_audmux_v2_configure_port(3,
MXC_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
MXC_AUDMUX_V2_PTCR_TFSEL(0) |
MXC_AUDMUX_V2_PTCR_TFSDIR,
MXC_AUDMUX_V2_PDCR_RXDSEL(0));
mxc_audmux_v2_configure_port(0,
MXC_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
MXC_AUDMUX_V2_PTCR_TCSEL(3) |
MXC_AUDMUX_V2_PTCR_TCLKDIR, /* clock is output */
MXC_AUDMUX_V2_PDCR_RXDSEL(3));
} else {
/* return happy. We might run on a totally different machine */
return 0;
}
imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
if (!imx_phycore_snd_ac97_device)
return -ENOMEM;
platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
ret = platform_device_add(imx_phycore_snd_ac97_device);
if (ret)
goto fail1;
imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
if (!imx_phycore_snd_device) {
ret = -ENOMEM;
goto fail2;
}
ret = platform_device_add(imx_phycore_snd_device);
if (ret) {
printk(KERN_ERR "ASoC: Platform device allocation failed\n");
goto fail3;
}
return 0;
fail3:
platform_device_put(imx_phycore_snd_device);
fail2:
platform_device_del(imx_phycore_snd_ac97_device);
fail1:
platform_device_put(imx_phycore_snd_ac97_device);
return ret;
}
static void __exit imx_phycore_exit(void)
{
platform_device_unregister(imx_phycore_snd_device);
platform_device_unregister(imx_phycore_snd_ac97_device);
}
late_initcall(imx_phycore_init);
module_exit(imx_phycore_exit);
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
MODULE_LICENSE("GPL");
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