mirror of https://gitee.com/openkylin/linux.git
185 lines
4.8 KiB
C
185 lines
4.8 KiB
C
/*
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* Machine driver for EVAL-ADAU1373 on Analog Devices bfin
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* evaluation boards.
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*
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* Copyright 2011 Analog Devices Inc.
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* Author: Lars-Peter Clausen <lars@metafoo.de>
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <linux/module.h>
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#include <linux/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 <sound/pcm_params.h>
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#include "../codecs/adau1373.h"
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static const struct snd_soc_dapm_widget bfin_eval_adau1373_dapm_widgets[] = {
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SND_SOC_DAPM_LINE("Line In1", NULL),
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SND_SOC_DAPM_LINE("Line In2", NULL),
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SND_SOC_DAPM_LINE("Line In3", NULL),
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SND_SOC_DAPM_LINE("Line In4", NULL),
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SND_SOC_DAPM_LINE("Line Out1", NULL),
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SND_SOC_DAPM_LINE("Line Out2", NULL),
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SND_SOC_DAPM_LINE("Stereo Out", NULL),
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SND_SOC_DAPM_HP("Headphone", NULL),
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SND_SOC_DAPM_HP("Earpiece", NULL),
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SND_SOC_DAPM_SPK("Speaker", NULL),
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};
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static const struct snd_soc_dapm_route bfin_eval_adau1373_dapm_routes[] = {
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{ "AIN1L", NULL, "Line In1" },
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{ "AIN1R", NULL, "Line In1" },
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{ "AIN2L", NULL, "Line In2" },
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{ "AIN2R", NULL, "Line In2" },
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{ "AIN3L", NULL, "Line In3" },
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{ "AIN3R", NULL, "Line In3" },
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{ "AIN4L", NULL, "Line In4" },
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{ "AIN4R", NULL, "Line In4" },
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/* MICBIAS can be connected via a jumper to the line-in jack, since w
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don't know which one is going to be used, just power both. */
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{ "Line In1", NULL, "MICBIAS1" },
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{ "Line In2", NULL, "MICBIAS1" },
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{ "Line In3", NULL, "MICBIAS1" },
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{ "Line In4", NULL, "MICBIAS1" },
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{ "Line In1", NULL, "MICBIAS2" },
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{ "Line In2", NULL, "MICBIAS2" },
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{ "Line In3", NULL, "MICBIAS2" },
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{ "Line In4", NULL, "MICBIAS2" },
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{ "Line Out1", NULL, "LOUT1L" },
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{ "Line Out1", NULL, "LOUT1R" },
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{ "Line Out2", NULL, "LOUT2L" },
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{ "Line Out2", NULL, "LOUT2R" },
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{ "Headphone", NULL, "HPL" },
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{ "Headphone", NULL, "HPR" },
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{ "Earpiece", NULL, "EP" },
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{ "Speaker", NULL, "SPKL" },
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{ "Stereo Out", NULL, "SPKR" },
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};
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static int bfin_eval_adau1373_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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int ret;
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int pll_rate;
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switch (params_rate(params)) {
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case 48000:
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case 8000:
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case 12000:
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case 16000:
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case 24000:
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case 32000:
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pll_rate = 48000 * 1024;
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break;
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case 44100:
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case 7350:
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case 11025:
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case 14700:
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case 22050:
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case 29400:
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pll_rate = 44100 * 1024;
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break;
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default:
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return -EINVAL;
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}
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ret = snd_soc_dai_set_pll(codec_dai, ADAU1373_PLL1,
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ADAU1373_PLL_SRC_MCLK1, 12288000, pll_rate);
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if (ret)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1373_CLK_SRC_PLL1, pll_rate,
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SND_SOC_CLOCK_IN);
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return ret;
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}
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static int bfin_eval_adau1373_codec_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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unsigned int pll_rate = 48000 * 1024;
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int ret;
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ret = snd_soc_dai_set_pll(codec_dai, ADAU1373_PLL1,
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ADAU1373_PLL_SRC_MCLK1, 12288000, pll_rate);
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if (ret)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1373_CLK_SRC_PLL1, pll_rate,
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SND_SOC_CLOCK_IN);
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return ret;
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}
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static struct snd_soc_ops bfin_eval_adau1373_ops = {
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.hw_params = bfin_eval_adau1373_hw_params,
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};
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static struct snd_soc_dai_link bfin_eval_adau1373_dai = {
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.name = "adau1373",
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.stream_name = "adau1373",
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.cpu_dai_name = "bfin-i2s.0",
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.codec_dai_name = "adau1373-aif1",
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.platform_name = "bfin-i2s-pcm-audio",
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.codec_name = "adau1373.0-001a",
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.ops = &bfin_eval_adau1373_ops,
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.init = bfin_eval_adau1373_codec_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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};
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static struct snd_soc_card bfin_eval_adau1373 = {
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.name = "bfin-eval-adau1373",
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.owner = THIS_MODULE,
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.dai_link = &bfin_eval_adau1373_dai,
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.num_links = 1,
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.dapm_widgets = bfin_eval_adau1373_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1373_dapm_widgets),
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.dapm_routes = bfin_eval_adau1373_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1373_dapm_routes),
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};
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static int bfin_eval_adau1373_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &bfin_eval_adau1373;
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card->dev = &pdev->dev;
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return snd_soc_register_card(&bfin_eval_adau1373);
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}
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static int __devexit bfin_eval_adau1373_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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snd_soc_unregister_card(card);
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return 0;
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}
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static struct platform_driver bfin_eval_adau1373_driver = {
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.driver = {
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.name = "bfin-eval-adau1373",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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},
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.probe = bfin_eval_adau1373_probe,
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.remove = __devexit_p(bfin_eval_adau1373_remove),
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};
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module_platform_driver(bfin_eval_adau1373_driver);
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MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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MODULE_DESCRIPTION("ALSA SoC bfin adau1373 driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:bfin-eval-adau1373");
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