Merge branch 'linaro-topic-arndale' into x-integ

1 files changed, 52 insertions, 0 deletions

diff --git a/SamsungPlatformPkg/ExynosPkg/Exynos5250/Include/Protocol/ExynosRng.h b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Include/Protocol/ExynosRng.h
new file mode 100644
index 000000000..58376b530
--- /dev/null
+++ b/SamsungPlatformPkg/ExynosPkg/Exynos5250/Include/Protocol/ExynosRng.h
@@ -0,0 +1,52 @@
+/** @file
+
+  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __EXYNOS_RNG_H__
+#define __EXYNOS_RNG_H__
+
+//
+// Protocol interface structure
+//
+typedef struct _EFI_RNG_PROTOCOL EFI_RNG_PROTOCOL;
+
+/**
+ * Generates a pseudorandom byte stream of the specified size.
+ *
+ * If Output is NULL, then return FALSE.
+ *
+ * @param[out]  Output		Pointer to buffer to receive random value
+ * @param[in]	Size		Size of random bytes to generate
+ *
+ * @retval  TRUE	Pseudorandom byte stream generated successfully.
+ * @retval  FALSE	Pseudorandom number generator fails to generate due to lack of entropy.
+ *
+ **/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_RANDOM_BYTES) (
+  IN CONST EFI_RNG_PROTOCOL	*This,
+  OUT UINT8			*Output,
+  IN UINTN			Size
+  );
+
+///
+/// This protocol allows creating peudorandom random number using HW RNG engine.
+///
+struct _EFI_RNG_PROTOCOL {
+  EFI_RANDOM_BYTES		RandomBytes;
+};
+
+extern EFI_GUID gSamsungPlatformRngProtocolGuid;
+
+#endif