mirror of https://github.com/ARMmbed/mbed-os.git
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
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/** \addtogroup hal */
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/** @{*/
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/* mbed Microcontroller Library
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* Copyright (c) 2018-2018 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_MPU_API_H
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#define MBED_MPU_API_H
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#include <stdbool.h>
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#include "cmsis.h"
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#ifndef MBED_MPU_ENABLED
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#if ((__ARM_ARCH_7M__ == 1U) || \
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(__ARM_ARCH_7EM__ == 1U) || \
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(__ARM_ARCH_6M__ == 1U))
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#if defined (__MPU_PRESENT) && (__MPU_PRESENT == 1U)
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#define MBED_MPU_ENABLED 1U
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#else
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#define MBED_MPU_ENABLED 0U
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#endif
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#elif ((__ARM_ARCH_7A__ == 1U) || \
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(__ARM_ARCH_8M_BASE__ == 1U) || \
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(__ARM_ARCH_8M_MAIN__ == 1U))
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#define MBED_MPU_ENABLED 0U
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#else
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#error "Unknown architecture for MPU"
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#endif
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Initialize the MPU
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*
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* Initialize or re-initialize the memory protection unit.
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* It is implementation defined what region are protected
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* by the MPU after initialization.
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*/
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void mbed_mpu_init(void);
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/**
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* Enable or disable ram MPU protection
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*
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* This function is used to mark all of RAM as execute never.
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* When enabled code is only allowed to execute from flash.
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*
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* @param enable true to disable execution in ram, false otherwise
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*/
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void mbed_mpu_enable_ram_xn(bool enable);
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/** Deinitialize the MPU
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*
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* Powerdown the MPU in preparation for powerdown, reset or jumping to another application.
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*/
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void mbed_mpu_free(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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/** @}*/
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