diff options
| -rw-r--r-- | sound/soc/samsung/Kconfig | 8 | ||||
| -rw-r--r-- | sound/soc/samsung/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/samsung/odroidx2_max98090.c | 179 |
3 files changed, 189 insertions, 0 deletions
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index fe8819ba7a4..8bbd79490b8 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -240,3 +240,11 @@ config SND_SOC_SAMSUNG_EXYNOS4_WM1811 select SND_SAMSUNG_I2S help Say Y if you want to add support for SoC audio on the Tizen Exynos4 board. + +config SND_SOC_ODROIDX2 + tristate "Audio support for Odroidx2" + depends on SND_SOC_SAMSUNG + select SND_SOC_MAX98090 + select SND_SAMSUNG_I2S + help + Say Y here to enable audio support for the Odroidx2. diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile index 1e212e4f723..8a675f18d98 100644 --- a/sound/soc/samsung/Makefile +++ b/sound/soc/samsung/Makefile @@ -45,6 +45,7 @@ snd-soc-lowland-objs := lowland.o snd-soc-littlemill-objs := littlemill.o snd-soc-bells-objs := bells.o snd-soc-exynos4-wm1811-objs := exynos4_wm1811.o +snd-soc-odroidx2-max98090-objs := odroidx2_max98090.o obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o @@ -71,3 +72,4 @@ obj-$(CONFIG_SND_SOC_LOWLAND) += snd-soc-lowland.o obj-$(CONFIG_SND_SOC_LITTLEMILL) += snd-soc-littlemill.o obj-$(CONFIG_SND_SOC_BELLS) += snd-soc-bells.o obj-$(CONFIG_SND_SOC_SAMSUNG_EXYNOS4_WM1811) += snd-soc-exynos4-wm1811.o +obj-$(CONFIG_SND_SOC_ODROIDX2) += snd-soc-odroidx2-max98090.o diff --git a/sound/soc/samsung/odroidx2_max98090.c b/sound/soc/samsung/odroidx2_max98090.c new file mode 100644 index 00000000000..50bf81fb6ed --- /dev/null +++ b/sound/soc/samsung/odroidx2_max98090.c @@ -0,0 +1,179 @@ +/* + * Copyright (C) 2014 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/of.h> +#include <linux/module.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> +#include "i2s.h" + +static int odroidx2_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; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int bfs, rfs, ret; + unsigned long rclk; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_U24: + case SNDRV_PCM_FORMAT_S24: + bfs = 48; + break; + case SNDRV_PCM_FORMAT_U16_LE: + case SNDRV_PCM_FORMAT_S16_LE: + bfs = 32; + break; + default: + return -EINVAL; + } + + switch (params_rate(params)) { + case 16000: + case 22050: + case 24000: + case 32000: + case 44100: + case 48000: + case 88200: + case 96000: + if (bfs == 48) + rfs = 384; + else + rfs = 256; + break; + case 64000: + rfs = 384; + break; + case 8000: + case 11025: + case 12000: + if (bfs == 48) + rfs = 768; + else + rfs = 512; + break; + default: + return -EINVAL; + } + + rclk = params_rate(params) * rfs; + + ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S + | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S + | SND_SOC_DAIFMT_NB_NF + | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, rclk, SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK, + 0, SND_SOC_CLOCK_OUT); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_clkdiv(cpu_dai, SAMSUNG_I2S_DIV_BCLK, bfs); + if (ret < 0) + return ret; + + return 0; +} + +static struct snd_soc_ops odroidx2_ops = { + .hw_params = odroidx2_hw_params, +}; + +static struct snd_soc_dai_link odroidx2_dai[] = { + { + .name = "MAX98090", + .stream_name = "MAX98090 PCM", + .codec_dai_name = "HiFi", + .ops = &odroidx2_ops, + }, +}; + +static struct snd_soc_card odroidx2 = { + .name = "odroidx2", + .owner = THIS_MODULE, + .dai_link = odroidx2_dai, + .num_links = ARRAY_SIZE(odroidx2_dai), +}; + +static int odroidx2_audio_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct snd_soc_card *card = &odroidx2; + + if (!np) + return -ENODEV; + + card->dev = &pdev->dev; + + odroidx2_dai[0].codec_name = NULL; + odroidx2_dai[0].codec_of_node = of_parse_phandle(np, + "samsung,audio-codec", 0); + if (!odroidx2_dai[0].codec_of_node) { + dev_err(&pdev->dev, + "Property 'samsung,audio-codec' missing or invalid\n"); + return -EINVAL; + } + + odroidx2_dai[0].cpu_name = NULL; + odroidx2_dai[0].cpu_of_node = of_parse_phandle(np, + "samsung,i2s-controller", 0); + if (!odroidx2_dai[0].cpu_of_node) { + dev_err(&pdev->dev, + "Property 'samsung,i2s-controller' missing or invalid\n"); + return -EINVAL; + } + + odroidx2_dai[0].platform_of_node = odroidx2_dai[0].cpu_of_node; + + return snd_soc_register_card(card); +} + +static int odroidx2_audio_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static const struct of_device_id odroidx2_audio_of_match[] = { + { .compatible = "samsung,odroidx2-audio", }, + { }, +}; +MODULE_DEVICE_TABLE(of, odroid_audio_of_match); + +static struct platform_driver odroidx2_audio_driver = { + .driver = { + .name = "odroidx2-audio", + .owner = THIS_MODULE, + .of_match_table = odroidx2_audio_of_match, + }, + .probe = odroidx2_audio_probe, + .remove = odroidx2_audio_remove, +}; + +module_platform_driver(odroidx2_audio_driver); + +MODULE_AUTHOR("zhen1.chen@samsung.com"); +MODULE_DESCRIPTION("ALSA SoC Odroidx2 Audio Support"); +MODULE_LICENSE("GPL v2"); |