126 lines
3.3 KiB
C
126 lines
3.3 KiB
C
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/*
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* phycore-ac97.c -- SoC audio for imx_phycore in AC97 mode
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*
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* Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <linux/i2c.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <asm/mach-types.h>
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#include "imx-audmux.h"
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static struct snd_soc_card imx_phycore;
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static struct snd_soc_ops imx_phycore_hifi_ops = {
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};
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static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
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{
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.name = "HiFi",
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.stream_name = "HiFi",
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.codec_dai_name = "wm9712-hifi",
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.codec_name = "wm9712-codec",
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.cpu_dai_name = "imx-ssi.0",
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.platform_name = "imx-fiq-pcm-audio.0",
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.ops = &imx_phycore_hifi_ops,
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},
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};
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static struct snd_soc_card imx_phycore = {
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.name = "PhyCORE-ac97-audio",
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.owner = THIS_MODULE,
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.dai_link = imx_phycore_dai_ac97,
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.num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
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};
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static struct platform_device *imx_phycore_snd_ac97_device;
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static struct platform_device *imx_phycore_snd_device;
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static int __init imx_phycore_init(void)
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{
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int ret;
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if (machine_is_pca100()) {
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imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
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IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
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IMX_AUDMUX_V1_PCR_TFCSEL(3) |
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IMX_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
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IMX_AUDMUX_V1_PCR_RXDSEL(3));
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imx_audmux_v1_configure_port(3,
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IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
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IMX_AUDMUX_V1_PCR_TFCSEL(0) |
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IMX_AUDMUX_V1_PCR_TFSDIR |
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IMX_AUDMUX_V1_PCR_RXDSEL(0));
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} else if (machine_is_pcm043()) {
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imx_audmux_v2_configure_port(3,
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IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
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IMX_AUDMUX_V2_PTCR_TFSEL(0) |
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IMX_AUDMUX_V2_PTCR_TFSDIR,
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IMX_AUDMUX_V2_PDCR_RXDSEL(0));
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imx_audmux_v2_configure_port(0,
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IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
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IMX_AUDMUX_V2_PTCR_TCSEL(3) |
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IMX_AUDMUX_V2_PTCR_TCLKDIR, /* clock is output */
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IMX_AUDMUX_V2_PDCR_RXDSEL(3));
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} else {
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/* return happy. We might run on a totally different machine */
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return 0;
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}
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imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
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if (!imx_phycore_snd_ac97_device)
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return -ENOMEM;
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platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
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ret = platform_device_add(imx_phycore_snd_ac97_device);
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if (ret)
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goto fail1;
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imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
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if (!imx_phycore_snd_device) {
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ret = -ENOMEM;
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goto fail2;
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}
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ret = platform_device_add(imx_phycore_snd_device);
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if (ret) {
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printk(KERN_ERR "ASoC: Platform device allocation failed\n");
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goto fail3;
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}
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return 0;
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fail3:
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platform_device_put(imx_phycore_snd_device);
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fail2:
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platform_device_del(imx_phycore_snd_ac97_device);
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fail1:
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platform_device_put(imx_phycore_snd_ac97_device);
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return ret;
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}
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static void __exit imx_phycore_exit(void)
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{
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platform_device_unregister(imx_phycore_snd_device);
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platform_device_unregister(imx_phycore_snd_ac97_device);
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}
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late_initcall(imx_phycore_init);
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module_exit(imx_phycore_exit);
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MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
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MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
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MODULE_LICENSE("GPL");
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