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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-02-10 10:42:33 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-02-10 10:42:33 +0000
commit22313eafe92aeec1db9839f5afb71675bf2a5c33 (patch)
treee6eb4c8d4fabd96032a38d18db55bbc70e579953 /sound/soc
parentc50749de02f272be6e09b9016e13a17307d29066 (diff)
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ASoC: add phycore-ac97 sound support
This patch adds sound support for Phytec PhyCORE / PhyCARD modules in AC97 mode. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/imx/Makefile2
-rw-r--r--sound/soc/imx/phycore-ac97.c90
2 files changed, 92 insertions, 0 deletions
diff --git a/sound/soc/imx/Makefile b/sound/soc/imx/Makefile
index d05cc95..9f8bb92 100644
--- a/sound/soc/imx/Makefile
+++ b/sound/soc/imx/Makefile
@@ -8,3 +8,5 @@ endif
obj-$(CONFIG_SND_IMX_SOC) += snd-soc-imx.o
# i.MX Machine Support
+snd-soc-phycore-ac97-objs := phycore-ac97.o
+obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
diff --git a/sound/soc/imx/phycore-ac97.c b/sound/soc/imx/phycore-ac97.c
new file mode 100644
index 0000000..a8307d5
--- /dev/null
+++ b/sound/soc/imx/phycore-ac97.c
@@ -0,0 +1,90 @@
+/*
+ * phycore-ac97.c -- SoC audio for imx_phycore in AC97 mode
+ *
+ * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+ *
+ * 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/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <asm/mach-types.h>
+
+#include "../codecs/wm9712.h"
+#include "imx-ssi.h"
+
+static struct snd_soc_card imx_phycore;
+
+static struct snd_soc_ops imx_phycore_hifi_ops = {
+};
+
+static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
+ {
+ .name = "HiFi",
+ .stream_name = "HiFi",
+ .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
+ .ops = &imx_phycore_hifi_ops,
+ },
+};
+
+static struct snd_soc_card imx_phycore = {
+ .name = "PhyCORE-audio",
+ .platform = &imx_soc_platform,
+ .dai_link = imx_phycore_dai_ac97,
+ .num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
+};
+
+static struct snd_soc_device imx_phycore_snd_devdata = {
+ .card = &imx_phycore,
+ .codec_dev = &soc_codec_dev_wm9712,
+};
+
+static struct platform_device *imx_phycore_snd_device;
+
+static int __init imx_phycore_init(void)
+{
+ int ret;
+
+ if (!machine_is_pcm043() && !machine_is_pca100())
+ /* return happy. We might run on a totally different machine */
+ return 0;
+
+ imx_phycore_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!imx_phycore_snd_device)
+ return -ENOMEM;
+
+ imx_phycore_dai_ac97[0].cpu_dai = &imx_ssi_pcm_dai[0];
+
+ platform_set_drvdata(imx_phycore_snd_device, &imx_phycore_snd_devdata);
+ imx_phycore_snd_devdata.dev = &imx_phycore_snd_device->dev;
+ ret = platform_device_add(imx_phycore_snd_device);
+
+ if (ret) {
+ printk(KERN_ERR "ASoC: Platform device allocation failed\n");
+ platform_device_put(imx_phycore_snd_device);
+ }
+
+ return ret;
+}
+
+static void __exit imx_phycore_exit(void)
+{
+ platform_device_unregister(imx_phycore_snd_device);
+}
+
+late_initcall(imx_phycore_init);
+module_exit(imx_phycore_exit);
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
+MODULE_LICENSE("GPL");