flipperzero-firmware/firmware/targets/furi_hal_include/furi_hal_mpu.h
SG eed4296890
MPU Hal (#1492)
* Furi HAL: memory protection unit
* Core: prohibit NULL dereferencing, even for reads.
* Applications: fix NULL dereference
* Core: stack protection by MPU
* MPU: stack region alignment
* Apps: fix null pointer dereferences
* Threads: fix non-null arg check
* Desktop settings: fix null pointer dereference
* Core: documented null-check hack
* Fix null dereference issues
* Apps: args check
* Core: naming fixes
* format code
* Core: remove NONNULL specifier
* FurHal: move MPU initialization to begining, fix enum naming

Co-authored-by: あく <alleteam@gmail.com>
2022-08-04 00:47:10 +09:00

87 lines
2.1 KiB
C

/**
* @file furi_hal_light.h
* Light control HAL API
*/
#pragma once
#include <stdbool.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
FuriHalMpuRegionNULL = 0x00, // region 0 used to protect null pointer dereference
FuriHalMpuRegionStack = 0x01, // region 1 used to protect stack
FuriHalMpuRegion2 = 0x02,
FuriHalMpuRegion3 = 0x03,
FuriHalMpuRegion4 = 0x04,
FuriHalMpuRegion5 = 0x05,
FuriHalMpuRegion6 = 0x06,
FuriHalMpuRegion7 = 0x07,
} FuriHalMpuRegion;
typedef enum {
FuriHalMPURegionSize32B = 0x04U,
FuriHalMPURegionSize64B = 0x05U,
FuriHalMPURegionSize128B = 0x06U,
FuriHalMPURegionSize256B = 0x07U,
FuriHalMPURegionSize512B = 0x08U,
FuriHalMPURegionSize1KB = 0x09U,
FuriHalMPURegionSize2KB = 0x0AU,
FuriHalMPURegionSize4KB = 0x0BU,
FuriHalMPURegionSize8KB = 0x0CU,
FuriHalMPURegionSize16KB = 0x0DU,
FuriHalMPURegionSize32KB = 0x0EU,
FuriHalMPURegionSize64KB = 0x0FU,
FuriHalMPURegionSize128KB = 0x10U,
FuriHalMPURegionSize256KB = 0x11U,
FuriHalMPURegionSize512KB = 0x12U,
FuriHalMPURegionSize1MB = 0x13U,
FuriHalMPURegionSize2MB = 0x14U,
FuriHalMPURegionSize4MB = 0x15U,
FuriHalMPURegionSize8MB = 0x16U,
FuriHalMPURegionSize16MB = 0x17U,
FuriHalMPURegionSize32MB = 0x18U,
FuriHalMPURegionSize64MB = 0x19U,
FuriHalMPURegionSize128MB = 0x1AU,
FuriHalMPURegionSize256MB = 0x1BU,
FuriHalMPURegionSize512MB = 0x1CU,
FuriHalMPURegionSize1GB = 0x1DU,
FuriHalMPURegionSize2GB = 0x1EU,
FuriHalMPURegionSize4GB = 0x1FU,
} FuriHalMPURegionSize;
/**
* @brief Initialize memory protection unit
*/
void furi_hal_mpu_init();
/**
* @brief Enable memory protection unit
*/
void furi_hal_mpu_enable();
/**
* @brief Disable memory protection unit
*/
void furi_hal_mpu_disable();
void furi_hal_mpu_protect_no_access(
FuriHalMpuRegion region,
uint32_t address,
FuriHalMPURegionSize size);
void furi_hal_mpu_protect_read_only(
FuriHalMpuRegion region,
uint32_t address,
FuriHalMPURegionSize size);
void furi_hal_mpu_protect_disable(FuriHalMpuRegion region);
#ifdef __cplusplus
}
#endif