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/*
* imx-mc13783.c -- SoC audio for imx based boards with mc13783 codec
*
* Copyright 2012 Philippe Retornaz, <philippe.retornaz@epfl.ch>
*
* Heavly based on phycore-mc13783:
* 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 <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <asm/mach-types.h>
#include "../codecs/mc13783.h"
#include "imx-ssi.h"
#include "imx-audmux.h"
#define FMT_SSI (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | \
SND_SOC_DAIFMT_CBM_CFM)
static int imx_mc13783_hifi_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 *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xfffffffc, 0xfffffffc,
4, 16);
if (ret)
return ret;
ret = snd_soc_dai_set_sysclk(codec_dai, MC13783_CLK_CLIA, 26000000, 0);
if (ret)
return ret;
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x0, 0xfffffffc, 2, 16);
if (ret)
return ret;
return 0;
}
static struct snd_soc_ops imx_mc13783_hifi_ops = {
.hw_params = imx_mc13783_hifi_hw_params,
};
static struct snd_soc_dai_link imx_mc13783_dai_mc13783[] = {
{
.name = "MC13783",
.stream_name = "Sound",
.codec_dai_name = "mc13783-hifi",
.codec_name = "mc13783-codec",
.cpu_dai_name = "imx-ssi.0",
.platform_name = "imx-pcm-audio.0",
.ops = &imx_mc13783_hifi_ops,
.symmetric_rates = 1,
.dai_fmt = FMT_SSI,
},
};
static const struct snd_soc_dapm_widget imx_mc13783_widget[] = {
SND_SOC_DAPM_MIC("Mic", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
};
static const struct snd_soc_dapm_route imx_mc13783_routes[] = {
{"Speaker", NULL, "LSP"},
{"Headphone", NULL, "HSL"},
{"Headphone", NULL, "HSR"},
{"MC1LIN", NULL, "MC1 Bias"},
{"MC2IN", NULL, "MC2 Bias"},
{"MC1 Bias", NULL, "Mic"},
{"MC2 Bias", NULL, "Mic"},
};
static struct snd_soc_card imx_mc13783 = {
.name = "imx_mc13783",
.dai_link = imx_mc13783_dai_mc13783,
.num_links = ARRAY_SIZE(imx_mc13783_dai_mc13783),
.dapm_widgets = imx_mc13783_widget,
.num_dapm_widgets = ARRAY_SIZE(imx_mc13783_widget),
.dapm_routes = imx_mc13783_routes,
.num_dapm_routes = ARRAY_SIZE(imx_mc13783_routes),
};
static int __devinit imx_mc13783_probe(struct platform_device *pdev)
{
int ret;
imx_mc13783.dev = &pdev->dev;
ret = snd_soc_register_card(&imx_mc13783);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
ret);
return ret;
}
imx_audmux_v2_configure_port(MX31_AUDMUX_PORT4_SSI_PINS_4,
IMX_AUDMUX_V2_PTCR_SYN,
IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0) |
IMX_AUDMUX_V2_PDCR_MODE(1) |
IMX_AUDMUX_V2_PDCR_INMMASK(0xfc));
imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0,
IMX_AUDMUX_V2_PTCR_SYN |
IMX_AUDMUX_V2_PTCR_TFSDIR |
IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
IMX_AUDMUX_V2_PTCR_TCLKDIR |
IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
IMX_AUDMUX_V2_PTCR_RFSDIR |
IMX_AUDMUX_V2_PTCR_RFSEL(MX31_AUDMUX_PORT4_SSI_PINS_4) |
IMX_AUDMUX_V2_PTCR_RCLKDIR |
IMX_AUDMUX_V2_PTCR_RCSEL(MX31_AUDMUX_PORT4_SSI_PINS_4),
IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT4_SSI_PINS_4));
return ret;
}
static int __devexit imx_mc13783_remove(struct platform_device *pdev)
{
snd_soc_unregister_card(&imx_mc13783);
return 0;
}
static struct platform_driver imx_mc13783_audio_driver = {
.driver = {
.name = "imx_mc13783",
.owner = THIS_MODULE,
},
.probe = imx_mc13783_probe,
.remove = __devexit_p(imx_mc13783_remove)
};
module_platform_driver(imx_mc13783_audio_driver);
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch");
MODULE_DESCRIPTION("imx with mc13783 codec ALSA SoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:imx_mc13783");
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