142 строки
3.3 KiB
C
142 строки
3.3 KiB
C
/*
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* kirkwood-t5325.c
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*
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* (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
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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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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <sound/soc.h>
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#include <mach/kirkwood.h>
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#include <plat/audio.h>
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#include <asm/mach-types.h>
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#include "../codecs/alc5623.h"
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static int t5325_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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int ret;
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unsigned int freq, fmt;
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fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS;
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ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_fmt(codec_dai, fmt);
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if (ret < 0)
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return ret;
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freq = params_rate(params) * 256;
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return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
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}
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static struct snd_soc_ops t5325_ops = {
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.hw_params = t5325_hw_params,
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};
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static const struct snd_soc_dapm_widget t5325_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_MIC("Mic Jack", NULL),
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};
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static const struct snd_soc_dapm_route t5325_route[] = {
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{ "Headphone Jack", NULL, "HPL" },
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{ "Headphone Jack", NULL, "HPR" },
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{"Speaker", NULL, "SPKOUT"},
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{"Speaker", NULL, "SPKOUTN"},
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{ "MIC1", NULL, "Mic Jack" },
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{ "MIC2", NULL, "Mic Jack" },
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};
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static int t5325_dai_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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snd_soc_dapm_new_controls(dapm, t5325_dapm_widgets,
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ARRAY_SIZE(t5325_dapm_widgets));
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snd_soc_dapm_add_routes(dapm, t5325_route, ARRAY_SIZE(t5325_route));
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snd_soc_dapm_enable_pin(dapm, "Mic Jack");
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snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
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snd_soc_dapm_enable_pin(dapm, "Speaker");
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snd_soc_dapm_sync(dapm);
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return 0;
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}
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static struct snd_soc_dai_link t5325_dai[] = {
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{
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.name = "ALC5621",
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.stream_name = "ALC5621 HiFi",
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.cpu_dai_name = "kirkwood-i2s",
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.platform_name = "kirkwood-pcm-audio",
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.codec_dai_name = "alc5621-hifi",
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.codec_name = "alc562x-codec.0-001a",
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.ops = &t5325_ops,
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.init = t5325_dai_init,
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},
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};
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static struct snd_soc_card t5325 = {
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.name = "t5325",
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.dai_link = t5325_dai,
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.num_links = ARRAY_SIZE(t5325_dai),
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};
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static struct platform_device *t5325_snd_device;
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static int __init t5325_init(void)
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{
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int ret;
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if (!machine_is_t5325())
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return 0;
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t5325_snd_device = platform_device_alloc("soc-audio", -1);
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if (!t5325_snd_device)
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return -ENOMEM;
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platform_set_drvdata(t5325_snd_device,
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&t5325);
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ret = platform_device_add(t5325_snd_device);
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if (ret) {
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printk(KERN_ERR "%s: platform_device_add failed\n", __func__);
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platform_device_put(t5325_snd_device);
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}
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return ret;
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}
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module_init(t5325_init);
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static void __exit t5325_exit(void)
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{
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platform_device_unregister(t5325_snd_device);
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}
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module_exit(t5325_exit);
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MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
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MODULE_DESCRIPTION("ALSA SoC t5325 audio client");
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MODULE_LICENSE("GPL");
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