157 lines
4.0 KiB
C
157 lines
4.0 KiB
C
/*
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* Machine driver for EVAL-ADAV801 and EVAL-ADAV803 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/init.h>
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#include <linux/platform_device.h>
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#include <linux/module.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 "../codecs/adav80x.h"
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static const struct snd_soc_dapm_widget bfin_eval_adav80x_dapm_widgets[] = {
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SND_SOC_DAPM_LINE("Line Out", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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};
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static const struct snd_soc_dapm_route bfin_eval_adav80x_dapm_routes[] = {
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{ "Line Out", NULL, "VOUTL" },
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{ "Line Out", NULL, "VOUTR" },
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{ "VINL", NULL, "Line In" },
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{ "VINR", NULL, "Line In" },
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};
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static int bfin_eval_adav80x_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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ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_PLL1, ADAV80X_PLL_SRC_XTAL,
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27000000, params_rate(params) * 256);
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if (ret)
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return ret;
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ret = snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_PLL1,
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params_rate(params) * 256, SND_SOC_CLOCK_IN);
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return ret;
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}
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static int bfin_eval_adav80x_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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snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK1, 0,
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SND_SOC_CLOCK_OUT);
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snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK2, 0,
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SND_SOC_CLOCK_OUT);
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snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK3, 0,
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SND_SOC_CLOCK_OUT);
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snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_XTAL, 2700000, 0);
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return 0;
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}
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static struct snd_soc_ops bfin_eval_adav80x_ops = {
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.hw_params = bfin_eval_adav80x_hw_params,
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};
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static struct snd_soc_dai_link bfin_eval_adav80x_dais[] = {
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{
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.name = "adav80x",
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.stream_name = "ADAV80x HiFi",
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.cpu_dai_name = "bfin-i2s.0",
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.codec_dai_name = "adav80x-hifi",
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.platform_name = "bfin-i2s-pcm-audio",
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.init = bfin_eval_adav80x_codec_init,
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.ops = &bfin_eval_adav80x_ops,
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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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};
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static struct snd_soc_card bfin_eval_adav80x = {
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.name = "bfin-eval-adav80x",
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.owner = THIS_MODULE,
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.dai_link = bfin_eval_adav80x_dais,
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.num_links = ARRAY_SIZE(bfin_eval_adav80x_dais),
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.dapm_widgets = bfin_eval_adav80x_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bfin_eval_adav80x_dapm_widgets),
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.dapm_routes = bfin_eval_adav80x_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(bfin_eval_adav80x_dapm_routes),
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};
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enum bfin_eval_adav80x_type {
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BFIN_EVAL_ADAV801,
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BFIN_EVAL_ADAV803,
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};
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static int bfin_eval_adav80x_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &bfin_eval_adav80x;
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const char *codec_name;
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switch (platform_get_device_id(pdev)->driver_data) {
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case BFIN_EVAL_ADAV801:
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codec_name = "spi0.1";
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break;
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case BFIN_EVAL_ADAV803:
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codec_name = "adav803.0-0034";
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break;
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default:
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return -EINVAL;
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}
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bfin_eval_adav80x_dais[0].codec_name = codec_name;
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card->dev = &pdev->dev;
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return snd_soc_register_card(&bfin_eval_adav80x);
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}
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static int bfin_eval_adav80x_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 const struct platform_device_id bfin_eval_adav80x_ids[] = {
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{ "bfin-eval-adav801", BFIN_EVAL_ADAV801 },
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{ "bfin-eval-adav803", BFIN_EVAL_ADAV803 },
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{ },
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};
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MODULE_DEVICE_TABLE(platform, bfin_eval_adav80x_ids);
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static struct platform_driver bfin_eval_adav80x_driver = {
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.driver = {
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.name = "bfin-eval-adav80x",
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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_adav80x_probe,
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.remove = bfin_eval_adav80x_remove,
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.id_table = bfin_eval_adav80x_ids,
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};
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module_platform_driver(bfin_eval_adav80x_driver);
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MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver");
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MODULE_LICENSE("GPL");
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