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authorKevin2014-11-15 09:58:27 +0800
committerKevin2014-11-15 09:58:27 +0800
commit392e8802486cb573b916e746010e141a75f507e6 (patch)
tree50029aca02c81f087b90336e670b44e510782330 /ANDROID_3.4.5/sound/soc/codecs/wm8727.c
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init android origin source code
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/wm8727.c')
-rw-r--r--ANDROID_3.4.5/sound/soc/codecs/wm8727.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wm8727.c b/ANDROID_3.4.5/sound/soc/codecs/wm8727.c
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+/*
+ * wm8727.c
+ *
+ * Created on: 15-Oct-2009
+ * Author: neil.jones@imgtec.com
+ *
+ * Copyright (C) 2009 Imagination Technologies Ltd.
+ *
+ * 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/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+/*
+ * Note this is a simple chip with no configuration interface, sample rate is
+ * determined automatically by examining the Master clock and Bit clock ratios
+ */
+#define WM8727_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
+ SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\
+ SNDRV_PCM_RATE_192000)
+
+
+static struct snd_soc_dai_driver wm8727_dai = {
+ .name = "wm8727-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = WM8727_RATES,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+ },
+};
+
+static struct snd_soc_codec_driver soc_codec_dev_wm8727;
+
+static __devinit int wm8727_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_codec(&pdev->dev,
+ &soc_codec_dev_wm8727, &wm8727_dai, 1);
+}
+
+static int __devexit wm8727_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_codec(&pdev->dev);
+ return 0;
+}
+
+static struct platform_driver wm8727_codec_driver = {
+ .driver = {
+ .name = "wm8727",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = wm8727_probe,
+ .remove = __devexit_p(wm8727_remove),
+};
+
+module_platform_driver(wm8727_codec_driver);
+
+MODULE_DESCRIPTION("ASoC wm8727 driver");
+MODULE_AUTHOR("Neil Jones");
+MODULE_LICENSE("GPL");