Stm32SPIFFS.cxx

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#include "Stm32SPIFFS.hxx"
#include "spiffs.h"
#include "stm32f_hal_conf.hxx"
 
//
// Stm32SPIFFS::flash_read()
//
int32_t Stm32SPIFFS::flash_read(uint32_t addr, uint32_t size, uint8_t *dst)
{
    HASSERT(addr >= fs_->cfg.phys_addr &&
            (addr + size) <= (fs_->cfg.phys_addr  + fs_->cfg.phys_size));
 
    flash_.read(addr, size, dst);
 
    return 0;
}
 
//
// Stm32SPIFFS::flash_write()
//
int32_t Stm32SPIFFS::flash_write(uint32_t addr, uint32_t size, uint8_t *src)
{
    HASSERT(addr >= fs_->cfg.phys_addr &&
            (addr + size) <= (fs_->cfg.phys_addr  + fs_->cfg.phys_size));
 
    flash_.write(addr, size, src);
 
    return 0;
}
 
//
// Stm32SPIFFS::flash_erase()
//
int32_t Stm32SPIFFS::flash_erase(uint32_t addr, uint32_t size)
{
    HASSERT(addr >= fs_->cfg.phys_addr &&
            (addr + size) <= (fs_->cfg.phys_addr  + fs_->cfg.phys_size));
 
    flash_.erase(addr, size);
 
/*
  This is the old flash erase code. This will be needed in Stm32Flash when we want to support the F3, F0 or L4 MCUs.
 
  
    extern char __flash_fs_start;
    extern char __flash_fs_sector_start;
 
    FLASH_EraseInitTypeDef erase_init;
    memset(&erase_init, 0, sizeof(erase_init));
 
    erase_init.TypeErase = TYPEERASE_SECTORS;
    unsigned offset = addr - (unsigned)&__flash_fs_start;
    HASSERT((size % ERASE_PAGE_SIZE) == 0);
    HASSERT((offset % ERASE_PAGE_SIZE) == 0);
    unsigned sector = offset / ERASE_PAGE_SIZE;
    erase_init.Sector = ((unsigned)(&__flash_fs_sector_start)) + sector;
    erase_init.NbSectors = size / ERASE_PAGE_SIZE;
    erase_init.VoltageRange = FLASH_VOLTAGE_RANGE_3; // 3.3 to 3.6 volts powered.
    HAL_FLASH_Unlock();
    uint32_t sector_error;
    HASSERT(HAL_OK == HAL_FLASHEx_Erase(&erase_init, &sector_error));
    HAL_FLASH_Lock();
*/
 
    return 0;
}