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Diffstat (limited to 'ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c')
-rw-r--r--ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c b/ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c
new file mode 100644
index 00000000..80bd59c3
--- /dev/null
+++ b/ANDROID_3.4.5/sound/soc/kirkwood/kirkwood-openrd.c
@@ -0,0 +1,111 @@
+/*
+ * kirkwood-openrd.c
+ *
+ * (c) 2010 Arnaud Patard <apatard@mandriva.com>
+ * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
+ *
+ * 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/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+#include <mach/kirkwood.h>
+#include <plat/audio.h>
+#include <asm/mach-types.h>
+#include "../codecs/cs42l51.h"
+
+static int openrd_client_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;
+ unsigned int freq;
+
+ switch (params_rate(params)) {
+ default:
+ case 44100:
+ freq = 11289600;
+ break;
+ case 48000:
+ freq = 12288000;
+ break;
+ case 96000:
+ freq = 24576000;
+ break;
+ }
+
+ return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
+
+}
+
+static struct snd_soc_ops openrd_client_ops = {
+ .hw_params = openrd_client_hw_params,
+};
+
+
+static struct snd_soc_dai_link openrd_client_dai[] = {
+{
+ .name = "CS42L51",
+ .stream_name = "CS42L51 HiFi",
+ .cpu_dai_name = "kirkwood-i2s",
+ .platform_name = "kirkwood-pcm-audio",
+ .codec_dai_name = "cs42l51-hifi",
+ .codec_name = "cs42l51-codec.0-004a",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
+ .ops = &openrd_client_ops,
+},
+};
+
+
+static struct snd_soc_card openrd_client = {
+ .name = "OpenRD Client",
+ .owner = THIS_MODULE,
+ .dai_link = openrd_client_dai,
+ .num_links = ARRAY_SIZE(openrd_client_dai),
+};
+
+static int __devinit openrd_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &openrd_client;
+ int ret;
+
+ card->dev = &pdev->dev;
+
+ ret = snd_soc_register_card(card);
+ if (ret)
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+ ret);
+ return ret;
+}
+
+static int __devexit openrd_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ return 0;
+}
+
+static struct platform_driver openrd_driver = {
+ .driver = {
+ .name = "openrd-client-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = openrd_probe,
+ .remove = __devexit_p(openrd_remove),
+};
+
+module_platform_driver(openrd_driver);
+
+/* Module information */
+MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
+MODULE_DESCRIPTION("ALSA SoC OpenRD Client");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:openrd-client-audio");