/*
 *
 * Copyright (C) 2012 BLX Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>

static const struct snd_soc_dapm_widget lb_widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_MIC("LineIn", NULL),
};

static const struct snd_soc_dapm_route lb_routes[] = {
//	{"Mic", NULL, "MIC"},
//	{"Speaker", NULL, "LOUT"},
//	{"Speaker", NULL, "ROUT"},
	{"Headphone", NULL,	"HPL"},
	{"Headphone", NULL,	"HPR"},

	{"Speaker",	NULL,	"SPKOUT"},
	{"Speaker",	NULL,	"SPKOUTN"},

	{"LINEINL",	NULL,	"LineIn"},
	{"LINEINR",	NULL,	"LineIn"},
};

#define LB_DAIFMT (SND_SOC_DAIFMT_I2S | \
			SND_SOC_DAIFMT_NB_NF | \
			SND_SOC_DAIFMT_CBM_CFM)

static int lb_codec_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int ret;

#if 0
	snd_soc_dapm_nc_pin(dapm, "LIN");
	snd_soc_dapm_nc_pin(dapm, "RIN");
#endif
	snd_soc_dapm_nc_pin(dapm, "LineIn");
	snd_soc_dapm_nc_pin(dapm, "Headphone");
	snd_soc_dapm_nc_pin(dapm, "Speaker");

	ret = snd_soc_dai_set_fmt(cpu_dai, LB_DAIFMT);
	if (ret < 0) {
		dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret);
		return ret;
	}
	
	//return snd_soc_dai_set_sysclk(codec_dai, 0, 12288000, 0);
	return snd_soc_dai_set_sysclk(codec_dai, 0, 11289600, 0);
//	return 0;
}

static struct snd_soc_dai_link lb_dai = {
	.name = "blx_lb",
	.stream_name = "blx_lb",
	.cpu_dai_name = "gsc3280-i2s",
	.platform_name = "gsc3280-pcm-audio",
	.codec_dai_name = "alc5623-hifi",
	.codec_name = "alc562x-codec.0-001a",
	.init = lb_codec_init,
};

static struct snd_soc_card lb = {
	.name = "LB",
	.dai_link = &lb_dai,
	.num_links = 1,

	.dapm_widgets = lb_widgets,
	.num_dapm_widgets = ARRAY_SIZE(lb_widgets),
	.dapm_routes = lb_routes,
	.num_dapm_routes = ARRAY_SIZE(lb_routes),
};

static struct platform_device *lb_snd_device;

static int __init lb_init(void)
{
	int ret;

	lb_snd_device = platform_device_alloc("soc-audio", -1);

	if (!lb_snd_device)
		return -ENOMEM;

	platform_set_drvdata(lb_snd_device, &lb);

	ret = platform_device_add(lb_snd_device);
	if (ret) {
		pr_err("lb60 snd: Failed to add snd soc device: %d\n", ret);
		goto err_unset_pdata;
	}
	 
	return 0;

err_unset_pdata:
	platform_set_drvdata(lb_snd_device, NULL);
	platform_device_put(lb_snd_device);

	return ret;
}
module_init(lb_init);

static void __exit lb_exit(void)
{
	platform_device_unregister(lb_snd_device);
}
module_exit(lb_exit);

MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
MODULE_LICENSE("GPL v2");