1 files changed, 50 insertions, 0 deletions
diff --git a/vidix/dhahelperwin/dhahelper.h b/vidix/dhahelperwin/dhahelper.h
new file mode 100644
index 0000000000..a93b6ebc67
--- /dev/null
+++ b/vidix/dhahelperwin/dhahelper.h
@@ -0,0 +1,50 @@
+#ifndef _DHAHELPER_H
+#define _DHAHELPER_H 1
+
+// Define the various device type values.  Note that values used by Microsoft
+// Corporation are in the range 0-32767, and 32768-65535 are reserved for use
+// by customers.
+
+#define FILE_DEVICE_DHAHELPER 0x00008011
+
+// Macro definition for defining IOCTL and FSCTL function control codes.
+// Note that function codes 0-2047 are reserved for Microsoft Corporation,
+// and 2048-4095 are reserved for customers.
+
+#define DHAHELPER_IOCTL_INDEX 0x810
+
+#define IOCTL_DHAHELPER_MAPPHYSTOLIN     CTL_CODE(FILE_DEVICE_DHAHELPER,  \
+                                     DHAHELPER_IOCTL_INDEX,      \
+                                     METHOD_BUFFERED,        \
+                                     FILE_ANY_ACCESS)
+
+#define IOCTL_DHAHELPER_UNMAPPHYSADDR    CTL_CODE(FILE_DEVICE_DHAHELPER,  \
+                                     DHAHELPER_IOCTL_INDEX + 1,  \
+                                     METHOD_BUFFERED,        \
+                                     FILE_ANY_ACCESS)
+
+#define IOCTL_DHAHELPER_ENABLEDIRECTIO   CTL_CODE(FILE_DEVICE_DHAHELPER,  \
+                                     DHAHELPER_IOCTL_INDEX + 2,   \
+                                     METHOD_BUFFERED,         \
+                                     FILE_ANY_ACCESS)
+
+#define IOCTL_DHAHELPER_DISABLEDIRECTIO  CTL_CODE(FILE_DEVICE_DHAHELPER,  \
+                                     DHAHELPER_IOCTL_INDEX + 3,   \
+                                     METHOD_BUFFERED,         \
+                                     FILE_ANY_ACCESS)
+         
+         
+#if !defined(__MINGW32__) && !defined(__CYGWIN__) 
+#pragma pack(1)
+typedef struct dhahelper_t {
+#else
+struct __attribute__((__packed__)) dhahelper_t {
+#endif
+  unsigned int size;
+  void* base;
+  void* ptr;
+};
+
+typedef struct dhahelper_t dhahelper_t;
+
+#endif