1 files changed, 102 insertions, 0 deletions
diff --git a/include/lib/psa/psa/client.h b/include/lib/psa/psa/client.h
new file mode 100644
index 0000000..56fe028
--- /dev/null
+++ b/include/lib/psa/psa/client.h
@@ -0,0 +1,102 @@
+
+/*
+ * Copyright (c) 2018-2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef PSA_CLIENT_H
+#define PSA_CLIENT_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <psa/error.h>
+
+#ifndef IOVEC_LEN
+#define IOVEC_LEN(arr) ((uint32_t)(sizeof(arr)/sizeof(arr[0])))
+#endif
+/*********************** PSA Client Macros and Types *************************/
+/**
+ * The version of the PSA Framework API that is being used to build the calling
+ * firmware. Only part of features of FF-M v1.1 have been implemented. FF-M v1.1
+ * is compatible with v1.0.
+ */
+#define PSA_FRAMEWORK_VERSION	(0x0101u)
+/**
+ * Return value from psa_version() if the requested RoT Service is not present
+ * in the system.
+ */
+#define PSA_VERSION_NONE	(0u)
+/**
+ * The zero-value null handle can be assigned to variables used in clients and
+ * RoT Services, indicating that there is no current connection or message.
+ */
+#define PSA_NULL_HANDLE		((psa_handle_t)0)
+/**
+ * Tests whether a handle value returned by psa_connect() is valid.
+ */
+#define PSA_HANDLE_IS_VALID(handle)	((psa_handle_t)(handle) > 0)
+/**
+ * Converts the handle value returned from a failed call psa_connect() into
+ * an error code.
+ */
+#define PSA_HANDLE_TO_ERROR(handle)	((psa_status_t)(handle))
+/**
+ * Maximum number of input and output vectors for a request to psa_call().
+ */
+#define PSA_MAX_IOVEC		(4u)
+/**
+ * An IPC message type that indicates a generic client request.
+ */
+#define PSA_IPC_CALL		(0)
+typedef int32_t psa_handle_t;
+/**
+ * A read-only input memory region provided to an RoT Service.
+ */
+typedef struct psa_invec {
+	const void *base;	/*!< the start address of the memory buffer */
+	size_t len;		/*!< the size in bytes                      */
+} psa_invec;
+/**
+ * A writable output memory region provided to an RoT Service.
+ */
+typedef struct psa_outvec {
+	void *base;		/*!< the start address of the memory buffer */
+	size_t len;		/*!< the size in bytes                      */
+} psa_outvec;
+
+/**
+ * Call an RoT Service on an established connection.
+ *
+ * handle	A handle to an established connection.
+ * type		The request type. Must be zero(PSA_IPC_CALL) or positive.
+ * in_vec	Array of input psa_invec structures.
+ * in_len	Number of input psa_invec structures.
+ * out_vec	Array of output psa_outvec structures.
+ * out_len	Number of output psa_outvec structures.
+ *
+ * Return value >=0	RoT Service-specific status value.
+ * Return value <0	RoT Service-specific error code.
+ *
+ * PSA_ERROR_PROGRAMMER_ERROR:
+ *	- The connection has been terminated by the RoT Service.
+ *
+ * The call is a PROGRAMMER ERROR if one or more of the following are true:
+ *	- An invalid handle was passed.
+ *	- The connection is already handling a request.
+ *	- type < 0.
+ *	- An invalid memory reference was provided.
+ *	- in_len + out_len > PSA_MAX_IOVEC.
+ *	- The message is unrecognized by the RoT.
+ *	- Service or incorrectly formatted.
+ */
+psa_status_t psa_call(psa_handle_t handle,
+		      int32_t type,
+		      const psa_invec *in_vec,
+		      size_t in_len,
+		      psa_outvec *out_vec,
+		      size_t out_len);
+
+#endif /* PSA_CLIENT_H */