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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/soc/fsl/efika-audio-fabric.c
26428 views
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/*

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 * Efika driver for the PSC of the Freescale MPC52xx

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 * configured as AC97 interface

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 *

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 * Copyright 2008 Jon Smirl, Digispeaker

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 * Author: Jon Smirl <[email protected]>

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 *

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 * This file is licensed under the terms of the GNU General Public License

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 * version 2. This program is licensed "as is" without any warranty of any

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 * kind, whether express or implied.

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 */

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#include <linux/init.h>

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#include <linux/module.h>

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#include <linux/interrupt.h>

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#include <linux/device.h>

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#include <linux/delay.h>

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#include <linux/of.h>

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#include <linux/platform_device.h>

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#include <linux/dma-mapping.h>

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#include <sound/core.h>

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#include <sound/pcm.h>

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#include <sound/pcm_params.h>

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#include <sound/initval.h>

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#include <sound/soc.h>

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#include "mpc5200_dma.h"

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#define DRV_NAME "efika-audio-fabric"

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SND_SOC_DAILINK_DEFS(analog,

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	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),

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	DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",

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				      "stac9766-hifi-analog")),

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	DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));

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SND_SOC_DAILINK_DEFS(iec958,

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	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),

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	DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",

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				      "stac9766-hifi-IEC958")),

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	DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));

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static struct snd_soc_dai_link efika_fabric_dai[] = {

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{

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	.name = "AC97",

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	.stream_name = "AC97 Analog",

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	SND_SOC_DAILINK_REG(analog),

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},

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{

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	.name = "AC97",

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	.stream_name = "AC97 IEC958",

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	SND_SOC_DAILINK_REG(iec958),

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},

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};

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static struct snd_soc_card card = {

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	.name = "Efika",

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	.owner = THIS_MODULE,

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	.dai_link = efika_fabric_dai,

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	.num_links = ARRAY_SIZE(efika_fabric_dai),

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};

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static __init int efika_fabric_init(void)

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{

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	struct platform_device *pdev;

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	int rc;

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	if (!of_machine_is_compatible("bplan,efika"))

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		return -ENODEV;

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

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	if (!pdev) {

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		pr_err("efika_fabric_init: platform_device_alloc() failed\n");

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		return -ENODEV;

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	}

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	platform_set_drvdata(pdev, &card);

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	rc = platform_device_add(pdev);

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	if (rc) {

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		pr_err("efika_fabric_init: platform_device_add() failed\n");

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		platform_device_put(pdev);

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		return -ENODEV;

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	}

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	return 0;

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}

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module_init(efika_fabric_init);

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MODULE_AUTHOR("Jon Smirl <[email protected]>");

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MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");

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MODULE_LICENSE("GPL");

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