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/*
* Copyright (c) 2017-2021, Arm Limited. All rights reserved.
* Copyright (c) 2023 Cypress Semiconductor Corporation (an Infineon company)
* or an affiliate of Cypress Semiconductor Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef __TFM_NS_INTERFACE_H__
#define __TFM_NS_INTERFACE_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include "tfm_veneers.h"
typedef int32_t (*veneer_fn) (uint32_t arg0, uint32_t arg1,
uint32_t arg2, uint32_t arg3);
/**
* \brief NS interface, veneer function dispatcher
*
* \details This function implements the dispatching mechanism for the
* desired veneer function, to be called with the parameters
* described from arg0 to arg3.
*
* \note NSPE can use default implementation of this function or implement
* this function according to NS specific implementation and actual
* usage scenario.
*
* \param[in] fn Function pointer to the veneer function desired
* \param[in] arg0 Argument 0 of fn
* \param[in] arg1 Argument 1 of fn
* \param[in] arg2 Argument 2 of fn
* \param[in] arg3 Argument 3 of fn
*
* \return Returns the same return value of the requested veneer function
*
* \note This API must ensure the return value is from the veneer function.
* Other unrecoverable errors must be considered as fatal error and should
* not return.
*/
int32_t tfm_ns_interface_dispatch(veneer_fn fn,
uint32_t arg0, uint32_t arg1,
uint32_t arg2, uint32_t arg3);
/**
* \brief NS interface initialization function
*
* \details This function initializes TF-M NS interface.
*
* \note NSPE can use default implementation of this function or implement
* this function according to NS specific implementation and actual
* usage scenario.
*
* \return \ref OS_WRAPPER_SUCCESS on success or \ref OS_WRAPPER_ERROR on error
*/
uint32_t tfm_ns_interface_init(void);
#ifdef __cplusplus
}
#endif
#endif /* __TFM_NS_INTERFACE_H__ */
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