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[FL-1991] Rewrite flash driver (#813)

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* Toolbox: fix null pointer dereference in manchester decoder.
* FuriHal: use MPU to protect from null pointer dereference, replace flash driver with our own implementation.
This commit is contained in:
あく
2021-11-10 12:53:00 +03:00
committed by GitHub
parent 90d450368c
commit 5209701add
15 changed files with 535 additions and 293 deletions
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16
firmware/targets/f7/furi-hal/furi-hal.c
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@@ -5,6 +5,8 @@
#include <tim.h>
#include <gpio.h>
#include <stm32wbxx_ll_cortex.h>
void furi_hal_init() {
furi_hal_clock_init();
furi_hal_console_init();
@@ -52,4 +54,18 @@ void furi_hal_init() {
// FreeRTOS glue
furi_hal_os_init();
// Partial null pointer dereference protection
LL_MPU_Disable();
LL_MPU_ConfigRegion(
LL_MPU_REGION_NUMBER0, 0x00, 0x0,
LL_MPU_REGION_SIZE_1MB
| LL_MPU_REGION_PRIV_RO_URO
| LL_MPU_ACCESS_BUFFERABLE
| LL_MPU_ACCESS_CACHEABLE
| LL_MPU_ACCESS_SHAREABLE
| LL_MPU_TEX_LEVEL1
| LL_MPU_INSTRUCTION_ACCESS_ENABLE
);
LL_MPU_Enable(LL_MPU_CTRL_PRIVILEGED_DEFAULT);
}