/*
 *  SiRF Technology, Inc. GPS Software 
 *
 *  Copyright (C) 2006 by SiRF Technology, Inc. All rights reserved.
 *
 *  linux/sound/soc/sirf3a/identity_wm9713.c
 *  
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*
 * Machine Specific codefor ASoC driver
 * This will setup ac97 controller with wm9713 codec support
 */

#include <linux/module.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/amba/bus.h>
#include <linux/dma-mapping.h>	/* DMA memory is used for the buffer even if no DMA for this architecture */
#include <linux/pm.h>


#include <asm/io.h>
#include <asm/irq.h>
#include <asm/sizes.h>

#ifdef CONFIG_ARM_AMBA_DMA
# include <asm/mach-types.h>
#endif

#include <sound/driver.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/ac97_codec.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include "../codecs/ac97.h"
#include "platform_sound.h"
#include "aaci.h"

extern struct snd_soc_cpu_dai aaci_ac97_dai[];
extern struct snd_soc_codec_dai wm9713_dai[];
extern struct snd_soc_platform sirf3a_soc_platform;
extern struct snd_soc_codec_device soc_codec_dev_wm9713;
extern struct ac97_pcm ac97_defs[];

extern int sirf3a_ac97_probe(struct platform_device *);
extern void sirf3a_ac97_remove(struct platform_device *);
extern void snd_ac97_bus_proc_init(struct snd_ac97_bus *);
extern void snd_ac97_bus_proc_done(struct snd_ac97_bus *);


static int identity_wm9713_startup(snd_pcm_substream_t *substream)
{
	return 0;
}

static struct snd_soc_ops identity_wm9713_ops = {
	.startup = identity_wm9713_startup,
};

static int identity_wm9713_ac97_init(struct snd_soc_codec *codec)
{
	struct platform_controller *controller = codec->ac97->bus->private_data;
	struct aaci *aaci = (struct aaci *)controller->bus_controller;

    	snd_ac97_pcm_assign(codec->ac97->bus, 3, ac97_defs);
    	aaci->ac97_bus = codec->ac97->bus;
    
    	/*
	 *     * Disable AC97 PC Beep input on audio codecs.
	 *          */
    	if (ac97_is_audio(codec->ac97))
    		snd_ac97_write_cache(codec->ac97, AC97_PC_BEEP, 0x801e); 
    	return 0;
}
unsigned int identity_wm9713_config_sysclk(struct snd_soc_pcm_runtime *rtd,
	struct snd_soc_clock_info *info)
{
	return rtd->codec_dai->config_sysclk(rtd->codec_dai, info, 12187500);
}


static struct snd_soc_dai_link identity_wm9713_dai[] = {
	{
		.name = "AC97",
		.stream_name = "AC97 HiFi",
		.cpu_dai = &aaci_ac97_dai[0],
		.codec_dai = &wm9713_dai[0],
		.init = identity_wm9713_ac97_init,
		.config_sysclk = identity_wm9713_config_sysclk,

	},
	/*
	{
		.name = "WM9713",
		.stream_name = "BLUETOOTH VOICE",
		.cpu_dai = &aaci_ac97_dai[1],
		.codec_dai = &wm9713_dai[2],
	},
*/	
};

int identity_wm9713_probe(struct platform_device *pdev)
{
	int ret = 0;
	struct snd_soc_device *socdev;

	socdev = platform_get_drvdata(pdev);
	socdev->machine->dai_link->cpu_dai->probe = sirf3a_ac97_probe;	
	socdev->machine->dai_link->cpu_dai->remove = sirf3a_ac97_remove;	

	return ret;
}

int identity_wm9713_suspend_pre(struct platform_device *pdev, pm_message_t state)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->codec;
	struct snd_soc_codec_dai *dai = codec->dai;
	struct platform_controller *controller = dai->private_data;

	controller->state.event = state.event;
	return 0;
}

int identity_wm9713_resume_post(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->codec;
	struct snd_soc_codec_dai *dai = codec->dai;
	struct platform_controller *controller = dai->private_data;

	controller->state.event = PM_EVENT_ON;	
	return 0;
}

static struct snd_soc_machine identity_wm9713 = {
	.name = "IDENTITY",
	.probe = identity_wm9713_probe,
	.suspend_pre = identity_wm9713_suspend_pre,
	.resume_post = identity_wm9713_resume_post,
	.dai_link = identity_wm9713_dai,
	.num_links = ARRAY_SIZE(identity_wm9713_dai),
	.ops = &identity_wm9713_ops,
};

static struct snd_soc_device identity_wm9713_snd_devdata = {
	.machine = &identity_wm9713,
	.platform = &sirf3a_soc_platform,
	.codec_dev = &soc_codec_dev_wm9713,
};

extern struct platform_device identity_snd_device;
struct platform_device *pidentity_wm9713_snd_device = &identity_snd_device;

static int __init identity_wm9713_init(void)
{
	int ret;

	device_initialize(&pidentity_wm9713_snd_device->dev);
	platform_set_drvdata(pidentity_wm9713_snd_device, &identity_wm9713_snd_devdata);
	identity_wm9713_snd_devdata.dev = &pidentity_wm9713_snd_device->dev;
	ret = platform_device_add(pidentity_wm9713_snd_device);

	if (ret)
		platform_device_put(pidentity_wm9713_snd_device);

	return ret;
}

static void __exit identity_wm9713_exit(void)
{
	platform_device_unregister(pidentity_wm9713_snd_device);
}

module_init(identity_wm9713_init);
module_exit(identity_wm9713_exit);

/* Module information */
MODULE_AUTHOR("Nobin Mathew");
MODULE_DESCRIPTION("ALSA SoC SiRF3A");
MODULE_LICENSE("GPL");