App: Add NS interface code moved from TF-M
Add NS interface code moved from TF-M. It includes OS wrapper headers
and RTX specific implementation of OS wrapper.
Signed-off-by: David Hu <david.hu@arm.com>
Change-Id: I0b88535eaa720b52d2090d5ed041987093df9d75
diff --git a/ns_interface/os_wrapper/semaphore.h b/ns_interface/os_wrapper/semaphore.h
new file mode 100644
index 0000000..83d88ca
--- /dev/null
+++ b/ns_interface/os_wrapper/semaphore.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2017-2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef __OS_WRAPPER_SEMAPHORE_H__
+#define __OS_WRAPPER_SEMAPHORE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "common.h"
+
+/**
+ * \brief Creates a new semaphore
+ *
+ * \param[in] max_count Highest count of the semaphore
+ * \param[in] initial_count Starting count of the available semaphore
+ * \param[in] name Name of the semaphore
+ *
+ * \return Returns handle of the semaphore created, or NULL in case of error
+ */
+void *os_wrapper_semaphore_create(uint32_t max_count, uint32_t initial_count,
+ const char *name);
+
+/**
+ * \brief Acquires the semaphore
+ *
+ * \param[in] hanlde Semaphore handle
+ * \param[in] timeout Timeout value
+ *
+ * \return \ref OS_WRAPPER_SUCCESS in case of successful acquision, or
+ * \ref OS_WRAPPER_ERROR in case of error
+ */
+uint32_t os_wrapper_semaphore_acquire(void *handle, uint32_t timeout);
+
+/**
+ * \brief Releases the semaphore
+ *
+ * \param[in] hanlde Semaphore handle
+ *
+ * \return \ref OS_WRAPPER_SUCCESS in case of successful release, or
+ * \ref OS_WRAPPER_ERROR in case of error
+ */
+uint32_t os_wrapper_semaphore_release(void *handle);
+
+/**
+ * \brief Deletes the semaphore
+ *
+ * \param[in] handle Semaphore handle
+ *
+ * \return \ref OS_WRAPPER_SUCCESS in case of successful release, or
+ * \ref OS_WRAPPER_ERROR in case of error
+ */
+uint32_t os_wrapper_semaphore_delete(void *handle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __OS_WRAPPER_SEMAPHORE_H__ */