From cdf605255c2b592d7dbc1de19688feae941b5567 Mon Sep 17 00:00:00 2001 From: Vipin Kumar Date: Thu, 28 Jun 2012 12:31:37 +0530 Subject: ASoC: spdif_receiver: Add support for spdif in Audio Codec This patch adds the support for spdif in audio codec. Signed-off-by: vipin Kumar Signed-off-by: Rajeev Kumar Signed-off-by: Mark Brown --- sound/soc/codecs/spdif_receiver.c | 67 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 sound/soc/codecs/spdif_receiver.c (limited to 'sound/soc/codecs/spdif_receiver.c') diff --git a/sound/soc/codecs/spdif_receiver.c b/sound/soc/codecs/spdif_receiver.c new file mode 100644 index 000000000000..dd8d856053fc --- /dev/null +++ b/sound/soc/codecs/spdif_receiver.c @@ -0,0 +1,67 @@ +/* + * ALSA SoC SPDIF DIR (Digital Interface Reciever) driver + * + * Based on ALSA SoC SPDIF DIT driver + * + * This driver is used by controllers which can operate in DIR (SPDI/F) where + * no codec is needed. This file provides stub codec that can be used + * in these configurations. SPEAr SPDIF IN Audio controller uses this driver. + * + * Author: Vipin Kumar, + * Copyright: (C) 2012 ST Microelectronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#define STUB_RATES SNDRV_PCM_RATE_8000_192000 +#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) + +static struct snd_soc_codec_driver soc_codec_spdif_dir; + +static struct snd_soc_dai_driver dir_stub_dai = { + .name = "dir-hifi", + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 384, + .rates = STUB_RATES, + .formats = STUB_FORMATS, + }, +}; + +static int spdif_dir_probe(struct platform_device *pdev) +{ + return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_dir, + &dir_stub_dai, 1); +} + +static int spdif_dir_remove(struct platform_device *pdev) +{ + snd_soc_unregister_codec(&pdev->dev); + return 0; +} + +static struct platform_driver spdif_dir_driver = { + .probe = spdif_dir_probe, + .remove = spdif_dir_remove, + .driver = { + .name = "spdif-dir", + .owner = THIS_MODULE, + }, +}; + +module_platform_driver(spdif_dir_driver); + +MODULE_DESCRIPTION("ASoC SPDIF DIR driver"); +MODULE_AUTHOR("Vipin Kumar "); +MODULE_LICENSE("GPL"); -- cgit v1.2.3