diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/Kconfig | 3 | ||||
| -rw-r--r-- | sound/soc/Makefile | 1 | ||||
| -rw-r--r-- | sound/soc/generic/Kconfig | 4 | ||||
| -rw-r--r-- | sound/soc/generic/Makefile | 3 | ||||
| -rw-r--r-- | sound/soc/generic/simple-card.c | 114 |
5 files changed, 125 insertions, 0 deletions
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig index 0f85f6d526e..a7df779894d 100644 --- a/sound/soc/Kconfig +++ b/sound/soc/Kconfig @@ -51,5 +51,8 @@ source "sound/soc/txx9/Kconfig" # Supported codecs source "sound/soc/codecs/Kconfig" +# generic frame-work +source "sound/soc/generic/Kconfig" + endif # SND_SOC diff --git a/sound/soc/Makefile b/sound/soc/Makefile index 363dfd6cffe..57d3463ce9d 100644 --- a/sound/soc/Makefile +++ b/sound/soc/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_SND_SOC_DMAENGINE_PCM) += snd-soc-dmaengine-pcm.o obj-$(CONFIG_SND_SOC) += snd-soc-core.o obj-$(CONFIG_SND_SOC) += codecs/ +obj-$(CONFIG_SND_SOC) += generic/ obj-$(CONFIG_SND_SOC) += atmel/ obj-$(CONFIG_SND_SOC) += au1x/ obj-$(CONFIG_SND_SOC) += blackfin/ diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig new file mode 100644 index 00000000000..610f6125164 --- /dev/null +++ b/sound/soc/generic/Kconfig @@ -0,0 +1,4 @@ +config SND_SIMPLE_CARD + tristate "ASoC Simple sound card support" + help + This option enables generic simple sound card support diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile new file mode 100644 index 00000000000..9c3b246792b --- /dev/null +++ b/sound/soc/generic/Makefile @@ -0,0 +1,3 @@ +snd-soc-simple-card-objs := simple-card.o + +obj-$(CONFIG_SND_SIMPLE_CARD) += snd-soc-simple-card.o diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c new file mode 100644 index 00000000000..b4b4cab3023 --- /dev/null +++ b/sound/soc/generic/simple-card.c @@ -0,0 +1,114 @@ +/* + * ASoC simple sound card support + * + * Copyright (C) 2012 Renesas Solutions Corp. + * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + * + * 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 <linux/platform_device.h> +#include <linux/module.h> +#include <sound/simple_card.h> + +#define asoc_simple_get_card_info(p) \ + container_of(p->dai_link, struct asoc_simple_card_info, snd_link) + +static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + struct asoc_simple_card_info *cinfo = asoc_simple_get_card_info(rtd); + struct asoc_simple_dai_init_info *iinfo = cinfo->init; + struct snd_soc_dai *codec = rtd->codec_dai; + struct snd_soc_dai *cpu = rtd->cpu_dai; + unsigned int cpu_daifmt = iinfo->fmt | iinfo->cpu_daifmt; + unsigned int codec_daifmt = iinfo->fmt | iinfo->codec_daifmt; + int ret; + + if (codec_daifmt) { + ret = snd_soc_dai_set_fmt(codec, codec_daifmt); + if (ret < 0) + return ret; + } + + if (iinfo->sysclk) { + ret = snd_soc_dai_set_sysclk(codec, 0, iinfo->sysclk, 0); + if (ret < 0) + return ret; + } + + if (cpu_daifmt) { + ret = snd_soc_dai_set_fmt(cpu, cpu_daifmt); + if (ret < 0) + return ret; + } + + return 0; +} + +static int asoc_simple_card_probe(struct platform_device *pdev) +{ + struct asoc_simple_card_info *cinfo = pdev->dev.platform_data; + + if (!cinfo) { + dev_err(&pdev->dev, "no info for asoc-simple-card\n"); + return -EINVAL; + } + + if (!cinfo->name || + !cinfo->card || + !cinfo->cpu_dai || + !cinfo->codec || + !cinfo->platform || + !cinfo->codec_dai) { + dev_err(&pdev->dev, "insufficient asoc_simple_card_info settings\n"); + return -EINVAL; + } + + /* + * init snd_soc_dai_link + */ + cinfo->snd_link.name = cinfo->name; + cinfo->snd_link.stream_name = cinfo->name; + cinfo->snd_link.cpu_dai_name = cinfo->cpu_dai; + cinfo->snd_link.platform_name = cinfo->platform; + cinfo->snd_link.codec_name = cinfo->codec; + cinfo->snd_link.codec_dai_name = cinfo->codec_dai; + + /* enable snd_link.init if cinfo has settings */ + if (cinfo->init) + cinfo->snd_link.init = asoc_simple_card_dai_init; + + /* + * init snd_soc_card + */ + cinfo->snd_card.name = cinfo->card; + cinfo->snd_card.owner = THIS_MODULE; + cinfo->snd_card.dai_link = &cinfo->snd_link; + cinfo->snd_card.num_links = 1; + cinfo->snd_card.dev = &pdev->dev; + + return snd_soc_register_card(&cinfo->snd_card); +} + +static int asoc_simple_card_remove(struct platform_device *pdev) +{ + struct asoc_simple_card_info *cinfo = pdev->dev.platform_data; + + return snd_soc_unregister_card(&cinfo->snd_card); +} + +static struct platform_driver asoc_simple_card = { + .driver = { + .name = "asoc-simple-card", + }, + .probe = asoc_simple_card_probe, + .remove = asoc_simple_card_remove, +}; + +module_platform_driver(asoc_simple_card); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("ASoC Simple Sound Card"); +MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |