first commit

3 files changed, 124 insertions, 0 deletions

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
new file mode 100644
index 000000000..610f61251
--- /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 000000000..9c3b24679
--- /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 000000000..6cf8355a8
--- /dev/null
+++ b/sound/soc/generic/simple-card.c
@@ -0,0 +1,117 @@
+/*
+ * 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_dai *dai,
+				       struct asoc_simple_dai *set,
+				       unsigned int daifmt)
+{
+	int ret = 0;
+
+	daifmt |= set->fmt;
+
+	if (!ret && daifmt)
+		ret = snd_soc_dai_set_fmt(dai, daifmt);
+
+	if (!ret && set->sysclk)
+		ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
+
+	return ret;
+}
+
+static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct asoc_simple_card_info *info = asoc_simple_get_card_info(rtd);
+	struct snd_soc_dai *codec = rtd->codec_dai;
+	struct snd_soc_dai *cpu = rtd->cpu_dai;
+	unsigned int daifmt = info->daifmt;
+	int ret;
+
+	ret = __asoc_simple_card_dai_init(codec, &info->codec_dai, daifmt);
+	if (ret < 0)
+		return ret;
+
+	ret = __asoc_simple_card_dai_init(cpu, &info->cpu_dai, 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;
+	struct device *dev = &pdev->dev;
+
+	if (!cinfo) {
+		dev_err(dev, "no info for asoc-simple-card\n");
+		return -EINVAL;
+	}
+
+	if (!cinfo->name	||
+	    !cinfo->card	||
+	    !cinfo->codec	||
+	    !cinfo->platform	||
+	    !cinfo->cpu_dai.name ||
+	    !cinfo->codec_dai.name) {
+		dev_err(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.name;
+	cinfo->snd_link.platform_name	= cinfo->platform;
+	cinfo->snd_link.codec_name	= cinfo->codec;
+	cinfo->snd_link.codec_dai_name	= cinfo->codec_dai.name;
+	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>");