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- /*
- * Machine driver for EVAL-ADAV801 and EVAL-ADAV803 on Analog Devices bfin
- * evaluation boards.
- *
- * Copyright 2011 Analog Devices Inc.
- * Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2 or later.
- */
- #include <linux/init.h>
- #include <linux/platform_device.h>
- #include <linux/module.h>
- #include <sound/core.h>
- #include <sound/pcm.h>
- #include <sound/soc.h>
- #include "../codecs/adav80x.h"
- static const struct snd_soc_dapm_widget bfin_eval_adav80x_dapm_widgets[] = {
- SND_SOC_DAPM_LINE("Line Out", NULL),
- SND_SOC_DAPM_LINE("Line In", NULL),
- };
- static const struct snd_soc_dapm_route bfin_eval_adav80x_dapm_routes[] = {
- { "Line Out", NULL, "VOUTL" },
- { "Line Out", NULL, "VOUTR" },
- { "VINL", NULL, "Line In" },
- { "VINR", NULL, "Line In" },
- };
- static int bfin_eval_adav80x_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
- {
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- int ret;
- ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_PLL1, ADAV80X_PLL_SRC_XTAL,
- 27000000, params_rate(params) * 256);
- if (ret)
- return ret;
- ret = snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_PLL1,
- params_rate(params) * 256, SND_SOC_CLOCK_IN);
- return ret;
- }
- static int bfin_eval_adav80x_codec_init(struct snd_soc_pcm_runtime *rtd)
- {
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK1, 0,
- SND_SOC_CLOCK_OUT);
- snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK2, 0,
- SND_SOC_CLOCK_OUT);
- snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK3, 0,
- SND_SOC_CLOCK_OUT);
- snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_XTAL, 2700000, 0);
- return 0;
- }
- static struct snd_soc_ops bfin_eval_adav80x_ops = {
- .hw_params = bfin_eval_adav80x_hw_params,
- };
- static struct snd_soc_dai_link bfin_eval_adav80x_dais[] = {
- {
- .name = "adav80x",
- .stream_name = "ADAV80x HiFi",
- .cpu_dai_name = "bfin-i2s.0",
- .codec_dai_name = "adav80x-hifi",
- .platform_name = "bfin-i2s-pcm-audio",
- .init = bfin_eval_adav80x_codec_init,
- .ops = &bfin_eval_adav80x_ops,
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM,
- },
- };
- static struct snd_soc_card bfin_eval_adav80x = {
- .name = "bfin-eval-adav80x",
- .owner = THIS_MODULE,
- .dai_link = bfin_eval_adav80x_dais,
- .num_links = ARRAY_SIZE(bfin_eval_adav80x_dais),
- .dapm_widgets = bfin_eval_adav80x_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adav80x_dapm_widgets),
- .dapm_routes = bfin_eval_adav80x_dapm_routes,
- .num_dapm_routes = ARRAY_SIZE(bfin_eval_adav80x_dapm_routes),
- };
- enum bfin_eval_adav80x_type {
- BFIN_EVAL_ADAV801,
- BFIN_EVAL_ADAV803,
- };
- static int bfin_eval_adav80x_probe(struct platform_device *pdev)
- {
- struct snd_soc_card *card = &bfin_eval_adav80x;
- const char *codec_name;
- switch (platform_get_device_id(pdev)->driver_data) {
- case BFIN_EVAL_ADAV801:
- codec_name = "spi0.1";
- break;
- case BFIN_EVAL_ADAV803:
- codec_name = "adav803.0-0034";
- break;
- default:
- return -EINVAL;
- }
- bfin_eval_adav80x_dais[0].codec_name = codec_name;
- card->dev = &pdev->dev;
- return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adav80x);
- }
- static const struct platform_device_id bfin_eval_adav80x_ids[] = {
- { "bfin-eval-adav801", BFIN_EVAL_ADAV801 },
- { "bfin-eval-adav803", BFIN_EVAL_ADAV803 },
- { },
- };
- MODULE_DEVICE_TABLE(platform, bfin_eval_adav80x_ids);
- static struct platform_driver bfin_eval_adav80x_driver = {
- .driver = {
- .name = "bfin-eval-adav80x",
- .pm = &snd_soc_pm_ops,
- },
- .probe = bfin_eval_adav80x_probe,
- .id_table = bfin_eval_adav80x_ids,
- };
- module_platform_driver(bfin_eval_adav80x_driver);
- MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
- MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver");
- MODULE_LICENSE("GPL");
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