esp-idf/components/hal/mpu_hal.c

// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at

//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <stdlib.h>
#include <stdint.h>

#include "esp_err.h"

#include "hal/mpu_hal.h"
#include "hal/mpu_ll.h"
#include "hal/mpu_types.h"

#include "soc/mpu_caps.h"

void mpu_hal_set_region_access(int id, mpu_access_t access)
{
    uint32_t addr = mpu_ll_id_to_addr(id);

    switch (access)
    {
#if SOC_MPU_REGION_RO_SUPPORTED
        case MPU_REGION_RO:
            mpu_ll_set_region_ro(addr);
            break;
#endif
#if SOC_MPU_REGION_WO_SUPPORTED
        case MPU_REGION_WO:
            mpu_ll_set_region_wo(addr);
            break;
#endif
        case MPU_REGION_RW:
            mpu_ll_set_region_rw(addr);
            break;
        case MPU_REGION_X:
            mpu_ll_set_region_x(addr);
            break;
        case MPU_REGION_RWX:
            mpu_ll_set_region_rwx(addr);
            break;
        case MPU_REGION_ILLEGAL:
            mpu_ll_set_region_illegal(addr);
            break;
        default:
            break;
    }
}