84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
/*
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* Generic AC97 sound support for SH7760
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*
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* (c) 2007 Manuel Lauss
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*
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* Licensed under the GPLv2.
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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/platform_device.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/io.h>
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#define IPSEL 0xFE400034
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/* platform specific structs can be declared here */
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extern struct snd_soc_dai_driver sh4_hac_dai[2];
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extern struct snd_soc_platform_driver sh7760_soc_platform;
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static int machine_init(struct snd_soc_pcm_runtime *rtd)
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{
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snd_soc_dapm_sync(&rtd->codec->dapm);
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return 0;
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}
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static struct snd_soc_dai_link sh7760_ac97_dai = {
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai_name = "hac-dai.0", /* HAC0 */
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.codec_dai_name = "ac97-hifi",
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.platform_name = "sh7760-pcm-audio",
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.codec_name = "ac97-codec",
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.init = machine_init,
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.ops = NULL,
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};
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static struct snd_soc_card sh7760_ac97_soc_machine = {
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.name = "SH7760 AC97",
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.dai_link = &sh7760_ac97_dai,
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.num_links = 1,
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};
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static struct platform_device *sh7760_ac97_snd_device;
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static int __init sh7760_ac97_init(void)
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{
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int ret;
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unsigned short ipsel;
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/* enable both AC97 controllers in pinmux reg */
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ipsel = __raw_readw(IPSEL);
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__raw_writew(ipsel | (3 << 10), IPSEL);
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ret = -ENOMEM;
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sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1);
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if (!sh7760_ac97_snd_device)
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goto out;
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platform_set_drvdata(sh7760_ac97_snd_device,
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&sh7760_ac97_soc_machine);
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ret = platform_device_add(sh7760_ac97_snd_device);
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if (ret)
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platform_device_put(sh7760_ac97_snd_device);
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out:
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return ret;
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}
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static void __exit sh7760_ac97_exit(void)
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{
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platform_device_unregister(sh7760_ac97_snd_device);
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}
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module_init(sh7760_ac97_init);
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module_exit(sh7760_ac97_exit);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine");
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MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");
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