1 files changed, 97 insertions, 0 deletions
diff --git a/sound/soc/codecs/gtm601.c b/sound/soc/codecs/gtm601.c
new file mode 100644
index 0000000..289b25d
--- /dev/null
+++ b/sound/soc/codecs/gtm601.c
@@ -0,0 +1,97 @@
+/*
+ * FIXME: this is a blueprint for the GTM601 Voice PCM interface
+ * needs to be adapted for GTA04
+ * CHECKME: can we use the generic AC97 or SPDIF driver instead of defining our own?
+ *
+ * gtm601.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>
+
+#include "gtm601.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 GTM601_RATES  (SNDRV_PCM_RATE_8000)	// CHECKME
+
+struct snd_soc_dai_driver gtm601_dai = {
+	.name = "GTM601",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,	// CHECKME
+		.channels_max = 1,
+		.rates = GTM601_RATES,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,	/* this is the only format the
+							 * omap-mcbsp-dai understands */
+		},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 1,
+		.rates = GTM601_RATES,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+};
+
+struct snd_soc_codec_driver soc_codec_dev_gtm601;
+
+static int gtm601_platform_probe(struct platform_device *pdev)
+{
+	return snd_soc_register_codec(&pdev->dev,
+			&soc_codec_dev_gtm601, &gtm601_dai, 1);
+}
+
+static int gtm601_platform_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_codec(&pdev->dev);
+	return 0;
+}
+
+MODULE_ALIAS("platform:gtm601_codec_audio");
+
+static struct platform_driver gtm601_codec_driver = {
+	.driver = {
+			.name = "gtm601_codec_audio",
+			.owner = THIS_MODULE,
+	},
+
+	.probe = gtm601_platform_probe,
+	.remove = gtm601_platform_remove,
+};
+
+static int __init gtm601_init(void)
+{
+	return platform_driver_register(&gtm601_codec_driver);
+}
+module_init(gtm601_init);
+
+static void __exit gtm601_exit(void)
+{
+	platform_driver_unregister(&gtm601_codec_driver);
+}
+module_exit(gtm601_exit);
+
+MODULE_DESCRIPTION("ASoC GTM601 driver");
+MODULE_AUTHOR("Neil Jones");
+MODULE_LICENSE("GPL");