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116 lines
3.2 KiB
116 lines
3.2 KiB
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#include "zflash.h"
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include "zbase.h"
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#include "zlog.h"
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static uint32_t* _rawstartadd;
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static uint32_t* _defaultdata;
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static uint32_t _rawsize;
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static bool _is_first_run = false;
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static uint32_t* _flashadd;
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static uint32_t _flashSector;
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static bool _xs_check_raw_data() {
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uint32_t checksum = 0;
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if (_rawstartadd[0] != FLASH_MASK_VAL) {
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return false;
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}
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for (uint32_t i = 0; i < _rawsize - 1; i++) {
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checksum += _rawstartadd[i];
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}
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if (checksum != _rawstartadd[_rawsize - 1]) {
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return false;
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}
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return true;
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}
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static HAL_StatusTypeDef _flash_erase(void) {
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HAL_StatusTypeDef status;
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uint32_t sector_error_point;
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FLASH_EraseInitTypeDef flash_erase_structer = {
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//
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.TypeErase = FLASH_TYPEERASE_SECTORS, //
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.Sector = _flashSector, //
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.NbSectors = 1, //
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.VoltageRange = FLASH_VOLTAGE_RANGE_3 //
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};
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HAL_FLASH_Unlock(); // 解锁
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__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR); // 清除一些错误标志
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status = HAL_FLASHEx_Erase(&flash_erase_structer, §or_error_point);
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if (status != HAL_OK) {
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ZLOGE("flash", "erase error");
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}
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HAL_FLASH_Lock(); //
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return status;
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}
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/*******************************************************************************
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* EXTERN *
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*******************************************************************************/
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void zflash_init(uint32_t* flashadd, uint32_t flashSector, uint32_t* rawstartadd, uint32_t rawsize) {
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_flashadd = flashadd;
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_flashSector = flashSector;
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_rawstartadd = rawstartadd;
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_defaultdata = NULL;
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_rawsize = rawsize;
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// 读取flash数据
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memcpy(_rawstartadd, (uint32_t*)(_flashadd), _rawsize * 4);
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#if 0
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// 校验数据
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if (_xs_check_raw_data()) {
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return;
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}
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_is_first_run = true;
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zflash_factory_reset();
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#endif
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}
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bool zflash_check(void) { return _xs_check_raw_data(); }
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bool zflash_set_default_data(uint32_t* defaultdata) {
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_defaultdata = defaultdata;
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return true;
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}
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bool zflash_is_first_run(void) { return _is_first_run; }
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uint32_t zcompute_checksum(uint32_t* data, uint32_t size) {
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uint32_t checksum = 0;
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for (uint32_t i = 0; i < size; i++) {
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checksum += data[i];
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}
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return checksum;
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}
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bool zflash_factory_reset(void) {
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ZLOGI("flash", "factory reset");
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memcpy(_rawstartadd, _defaultdata, _rawsize * 4);
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zflash_flush();
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return true;
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}
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bool zflash_flush(void) {
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_rawstartadd[0] = FLASH_MASK_VAL;
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_rawstartadd[_rawsize - 1] = zcompute_checksum(_rawstartadd, _rawsize - 1);
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_flash_erase();
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HAL_FLASH_Unlock(); //
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HAL_StatusTypeDef status;
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for (uint32_t i = 0; i < _rawsize; i++) {
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status = HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, _flashadd + i * 4, _rawstartadd[i]);
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if (status != HAL_OK) {
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ZLOGE("flash", "write error");
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}
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}
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HAL_FLASH_Lock(); //
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return true;
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}
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