Reland "chaabi: initial commit for libcc54"

am: 09bcc11a44

* commit '09bcc11a44d5848b64009a4081de221dc15f3e1c':
  Reland "chaabi: initial commit for libcc54"

Change-Id: Ia9aa8329153eba04611a5bf5cd42acdcff7274cd

1 files changed, 39 insertions, 0 deletions

diff --git a/peripheral/keystore/chaabi/libcc54/crys/crys_context_relocation.h b/peripheral/keystore/chaabi/libcc54/crys/crys_context_relocation.h
new file mode 100644
index 0000000..7150ef1
--- /dev/null
+++ b/peripheral/keystore/chaabi/libcc54/crys/crys_context_relocation.h
@@ -0,0 +1,39 @@
+/*******************************************************************
+* (c) Copyright 2011-2012 Discretix Technologies Ltd.              *
+* This file is licensed under the terms provided in the file       *
+* libcc54/LICENSE in this directory or a parent directory          *
+********************************************************************/
+
+/*! \file crys_context_relocation.h
+ * Handle relocation of crypto context in the context buffer given
+ * by the user to assure it does not cross a page boundary
+ */
+
+#ifndef _CRYS_CONTEXT_RELOCATION_H_
+#define _CRYS_CONTEXT_RELOCATION_H_
+
+/*!
+ * Initialize the context offset for a new buffer given to INIT phase
+ *
+ * \param bufferStart The address of the context buffer given by the user
+ * \param bufferSize The size of the user buffer in bytes
+ * \param contextSize The required size (in bytes) of the context
+ *
+ * \return The address of the context within the buffer
+ */
+void *DX_InitUserCtxLocation(void *bufferStart,
+			     unsigned long bufferSize,
+			     unsigned long contextSize);
+
+/*!
+ * Return the context address in the given buffer
+ * If previous context offset is now crossing a page the context data
+ * would be moved to a good location.
+ *
+ * \param bufferStart The address of the context buffer given by the user
+ *
+ * \return The address of the context within the buffer
+ */
+void *DX_GetUserCtxLocation(void *bufferStart);
+
+#endif /*_CRYS_CONTEXT_RELOCATION_H_*/