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/*
* mx27vis-aic32x4.c
*
* Copyright 2011 Vista Silicon S.L.
*
* Author: Javier Martin <javier.martin@vista-silicon.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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#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 <sound/soc-dapm.h>
#include <asm/mach-types.h>
#include <mach/audmux.h>
#include "../codecs/tlv320aic32x4.h"
#include "imx-ssi.h"
static int mx27vis_aic32x4_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;
u32 dai_format;
dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM;
/* set codec DAI configuration */
snd_soc_dai_set_fmt(codec_dai, dai_format);
/* set cpu DAI configuration */
snd_soc_dai_set_fmt(cpu_dai, dai_format);
ret = snd_soc_dai_set_sysclk(codec_dai, 0,
25000000, SND_SOC_CLOCK_OUT);
if (ret) {
pr_err("%s: failed setting codec sysclk\n", __func__);
return ret;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
SND_SOC_CLOCK_IN);
if (ret) {
pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
return ret;
}
return 0;
}
static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
.hw_params = mx27vis_aic32x4_hw_params,
};
static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
.name = "tlv320aic32x4",
.stream_name = "TLV320AIC32X4",
.codec_dai_name = "tlv320aic32x4-hifi",
.platform_name = "imx-pcm-audio.0",
.codec_name = "tlv320aic32x4.0-0018",
.cpu_dai_name = "imx-ssi.0",
.ops = &mx27vis_aic32x4_snd_ops,
};
static struct snd_soc_card mx27vis_aic32x4 = {
.name = "visstrim_m10-audio",
.dai_link = &mx27vis_aic32x4_dai,
.num_links = 1,
};
static struct platform_device *mx27vis_aic32x4_snd_device;
static int __init mx27vis_aic32x4_init(void)
{
int ret;
mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1);
if (!mx27vis_aic32x4_snd_device)
return -ENOMEM;
platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4);
ret = platform_device_add(mx27vis_aic32x4_snd_device);
if (ret) {
printk(KERN_ERR "ASoC: Platform device allocation failed\n");
platform_device_put(mx27vis_aic32x4_snd_device);
}
/* Connect SSI0 as clock slave to SSI1 external pins */
mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
MXC_AUDMUX_V1_PCR_SYN |
MXC_AUDMUX_V1_PCR_TFSDIR |
MXC_AUDMUX_V1_PCR_TCLKDIR |
MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
);
mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
MXC_AUDMUX_V1_PCR_SYN |
MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
);
return ret;
}
static void __exit mx27vis_aic32x4_exit(void)
{
platform_device_unregister(mx27vis_aic32x4_snd_device);
}
module_init(mx27vis_aic32x4_init);
module_exit(mx27vis_aic32x4_exit);
MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
MODULE_LICENSE("GPL");
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