marvell/linux/sound/soc/pxa/pxa-nau8810.c

/*
 * linux/sound/soc/pxa/pxa-nau8810.c
 *
 * Copyright (C) 2013 Marvell International Ltd.
 *
 * 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
 *
 */
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/mfd/88pm8xxx-headset.h>
#include <linux/features.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <linux/io.h>
#include <linux/uaccess.h>
#include <sound/pcm_params.h>
#include <linux/pxa2xx_ssp.h>
#include <linux/input.h>
#include "pxa-ssp.h"

#ifdef CONFIG_SND_PXA_SSP_DUMP
int ssp_playback_enable;
int ssp_capture_enable;
int gssp_playback_enable;
int gssp_capture_enable;
#endif

#ifndef CONFIG_CPU_ASR18XX
u32 sscr0_hifi;
u32 sscr1_hifi;
#else
u32 top_ctrl_hifi;
u32 fifo_ctrl_hifi;
u32 rwot_ctrl_hifi;
u32 network_ctrl_hifi;
u32 int_en_hifi;
#endif

static int pxa_nau8810_hifi_startup(struct snd_pcm_substream *substream)
{
    return 0;
}

static int pxa_nau8810_hw_params(struct snd_pcm_substream *substream,
        struct snd_pcm_hw_params *params)
{
    return 0;
}

static int pxa_nau8810_hifi_prepare(struct snd_pcm_substream *substream)
{
    return 0;
}

static int pxa_nau8810_late_probe(struct snd_soc_card *card)
{
    return 0;
}

static struct snd_soc_ops pxa_nau8810_machine_ops[] = {
    {
        .startup = pxa_nau8810_hifi_startup,
        .hw_params = pxa_nau8810_hw_params,
        .prepare = pxa_nau8810_hifi_prepare,
    },
};



#if 1
SND_SOC_DAILINK_DEFS(nau8810,
    DAILINK_COMP_ARRAY(COMP_CPU("pxa-ssp-dai.1")),
    DAILINK_COMP_ARRAY(COMP_CODEC("nau8810.0-001a", "nau8810-pcm")),
    DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-ssp-dai.1")));

static struct snd_soc_dai_link pxa_nau8810_dai[] = {
    {
        .name = "nau8810 pcm",
        .stream_name = "mrvl-ssp",
        .ops = &pxa_nau8810_machine_ops[0],
        SND_SOC_DAILINK_REG(nau8810),
    },
};
#else
static struct snd_soc_dai_link pxa_nau8810_dai[] = {
    {
        .name = "nau8810 pcm",
        .stream_name = "mrvl-ssp",
        .codec_name = "nau8810.1-001a",
        .platform_name = "pxa-ssp-dai.1",
        .cpu_dai_name = "pxa-ssp-dai.1",
        .codec_dai_name = "nau8810-pcm",
        .ops = &pxa_nau8810_machine_ops[0],
    },
};
#endif

static struct snd_soc_card pxa_nau8810_card = {
    .name = "pxa-nau8810-dkb-voice",
    .dai_link = pxa_nau8810_dai,
    .num_links = ARRAY_SIZE(pxa_nau8810_dai),
    .late_probe = pxa_nau8810_late_probe,
};

static struct of_device_id pxa_nau8810_dt_ids[] = {
    { .compatible = "ASRMICRO,asrmicro-snd-card", },
    {}
};
MODULE_DEVICE_TABLE(of, pxa_nau8810_dt_ids);

static int pxa_nau8810_probe(struct platform_device *pdev)
{
    int ret;
    struct snd_soc_card *card = &pxa_nau8810_card;

    card->dev = &pdev->dev;

    ret = devm_snd_soc_register_card(&pdev->dev, card);
    //if (ret)
        //dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);

    printk(KERN_INFO"%s/L%d.\n", __FUNCTION__, __LINE__);

    return ret;
}

static int pxa_nau8810_remove(struct platform_device *pdev)
{
    struct snd_soc_card *card = platform_get_drvdata(pdev);

    snd_soc_unregister_card(card);

    return 0;
}

static struct platform_driver pxa_nau8810_driver = {
    .driver		= {
        .name	= "pxa-nau8810-platform",
        .owner	= THIS_MODULE,
        .of_match_table = pxa_nau8810_dt_ids,
    },
    .probe	= pxa_nau8810_probe,
    .remove	= pxa_nau8810_remove,
};

module_platform_driver(pxa_nau8810_driver);

/* Module information */
MODULE_AUTHOR("wenchen@asrmicro.com");
MODULE_DESCRIPTION("ALSA SoC TTC DKB");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa-nau8810-dkb-voice");