1 files changed, 38 insertions, 0 deletions

diff --git a/include/linux/udma.h b/include/linux/udma.h
new file mode 100644
index 00000000000..9acc1954c7d
--- /dev/null
+++ b/include/linux/udma.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2012 Texas Instruments Incorporated
+ * Author: Cyril Chemparathy <cyril@ti.com>
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_UDMA_H
+#define _LINUX_UDMA_H
+
+#include <linux/types.h>
+#include <linux/dmaengine.h>
+
+struct udma_chan_data {
+        unsigned long                    ring_virt;     /* in  */
+        unsigned                         ring_size;     /* in  */
+        unsigned                         num_desc;      /* in  */
+        unsigned                         align;         /* in  */
+        char                             name[64];      /* in  */
+        int                              eventfd;       /* in  */
+        enum dma_transfer_direction      direction;     /* in  */
+
+        int                              handle;        /* out */
+};
+
+#define UDMA_IOC_MAGIC          'I'
+#define UDMA_IOC_ATTACH         _IOWR(UDMA_IOC_MAGIC, 0, struct udma_chan_data)
+#define UDMA_IOC_DETACH         _IOW (UDMA_IOC_MAGIC, 1, int)
+#define UDMA_IOC_KICK           _IOW (UDMA_IOC_MAGIC, 2, int)
+
+#endif /* _LINUX_UDMA_H */