bebfdad795
* Rename `eeprom_stm32` to `eeprom_legacy_emulated_flash`. * Rename `flash_stm32` to `legacy_flash_ops`. * Rename `eeprom_teensy` to `eeprom_kinetis_flexram`.
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
// Copyright 2022 Nick Brassel (@tzarc)
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
#include <stdbool.h>
|
|
#include <hal.h>
|
|
#include "timer.h"
|
|
#include "wear_leveling.h"
|
|
#include "wear_leveling_internal.h"
|
|
#include "legacy_flash_ops.h"
|
|
|
|
bool backing_store_init(void) {
|
|
bs_dprintf("Init\n");
|
|
return true;
|
|
}
|
|
|
|
bool backing_store_unlock(void) {
|
|
bs_dprintf("Unlock\n");
|
|
FLASH_Unlock();
|
|
return true;
|
|
}
|
|
|
|
bool backing_store_erase(void) {
|
|
#ifdef WEAR_LEVELING_DEBUG_OUTPUT
|
|
uint32_t start = timer_read32();
|
|
#endif
|
|
|
|
bool ret = true;
|
|
FLASH_Status status;
|
|
for (int i = 0; i < (WEAR_LEVELING_LEGACY_EMULATION_PAGE_COUNT); ++i) {
|
|
status = FLASH_ErasePage(WEAR_LEVELING_LEGACY_EMULATION_BASE_PAGE_ADDRESS + (i * (WEAR_LEVELING_LEGACY_EMULATION_PAGE_SIZE)));
|
|
if (status != FLASH_COMPLETE) {
|
|
ret = false;
|
|
}
|
|
}
|
|
|
|
bs_dprintf("Backing store erase took %ldms to complete\n", ((long)(timer_read32() - start)));
|
|
return ret;
|
|
}
|
|
|
|
bool backing_store_write(uint32_t address, backing_store_int_t value) {
|
|
uint32_t offset = ((WEAR_LEVELING_LEGACY_EMULATION_BASE_PAGE_ADDRESS) + address);
|
|
bs_dprintf("Write ");
|
|
wl_dump(offset, &value, sizeof(backing_store_int_t));
|
|
return FLASH_ProgramHalfWord(offset, ~value) == FLASH_COMPLETE;
|
|
}
|
|
|
|
bool backing_store_lock(void) {
|
|
bs_dprintf("Lock \n");
|
|
FLASH_Lock();
|
|
return true;
|
|
}
|
|
|
|
bool backing_store_read(uint32_t address, backing_store_int_t* value) {
|
|
uint32_t offset = ((WEAR_LEVELING_LEGACY_EMULATION_BASE_PAGE_ADDRESS) + address);
|
|
backing_store_int_t* loc = (backing_store_int_t*)offset;
|
|
*value = ~(*loc);
|
|
bs_dprintf("Read ");
|
|
wl_dump(offset, loc, sizeof(backing_store_int_t));
|
|
return true;
|
|
}
|