1 files changed, 57 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/include/mach/audio.h b/arch/arm/mach-tegra/include/mach/audio.h
new file mode 100644
index 00000000000..5950ececae0
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/audio.h
@@ -0,0 +1,57 @@
+/*
+ * arch/arm/mach-tegra/include/mach/audio.h
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ *      Iliyan Malchev <malchev@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __ARCH_ARM_MACH_TEGRA_AUDIO_H
+#define __ARCH_ARM_MACH_TEGRA_AUDIO_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <mach/i2s.h>
+
+#define FIFO1           0
+#define FIFO2           1
+
+/* FIXME: this is not enforced by the hardware. */
+#define I2S_FIFO_TX             FIFO1
+#define I2S_FIFO_RX             FIFO2
+
+#define TEGRA_AUDIO_ENABLE_TX   1
+#define TEGRA_AUDIO_ENABLE_RX   2
+
+struct tegra_audio_platform_data {
+        bool i2s_master;
+        bool dsp_master;
+        int i2s_master_clk; /* When I2S mode and master, the framesync rate. */
+        int dsp_master_clk; /* When DSP mode and master, the framesync rate. */
+        bool dma_on;
+        unsigned long i2s_clk_rate;
+        const char *dap_clk;
+        const char *audio_sync_clk;
+
+        int mode; /* I2S, LJM, RJM, etc. */
+        int fifo_fmt;
+        int bit_size;
+        int i2s_bus_width; /* 32-bit for 16-bit packed I2S */
+        int dsp_bus_width; /* 16-bit for DSP data format */
+        int mask; /* enable tx and rx? */
+        bool stereo_capture; /* True if hardware supports stereo */
+        void *driver_data;
+};
+
+#endif /* __ARCH_ARM_MACH_TEGRA_AUDIO_H */