ASoC: Add driver for s6000 I2S interface

This patch adds a driver for the I2S interface found on Stretch s6000
family processors.

Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/sound/soc/s6000/s6000-pcm.h b/sound/soc/s6000/s6000-pcm.h
new file mode 100644
index 000000000000..96f23f6f52bf
--- /dev/null
+++ b/sound/soc/s6000/s6000-pcm.h
@@ -0,0 +1,35 @@
+/*
+ * ALSA PCM interface for the Stretch s6000 family
+ *
+ * Author:      Daniel Gloeckner, <dg@emlix.com>
+ * Copyright:   (C) 2009 emlix GmbH <info@emlix.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.
+ */
+
+#ifndef _S6000_PCM_H
+#define _S6000_PCM_H
+
+struct snd_soc_dai;
+struct snd_pcm_substream;
+
+struct s6000_pcm_dma_params {
+        unsigned int (*check_xrun)(struct snd_soc_dai *cpu_dai);
+        int (*trigger)(struct snd_pcm_substream *substream, int cmd, int after);
+        dma_addr_t sif_in;
+        dma_addr_t sif_out;
+        u32 dma_in;
+        u32 dma_out;
+        int irq;
+        int same_rate;
+
+        spinlock_t lock;
+        int in_use;
+        int rate;
+};
+
+extern struct snd_soc_platform s6000_soc_platform;
+
+#endif