status_code_t nvm_write(mem_type_t mem, uint32_t address, void *buffer,
uint32_t len)
{
switch (mem) {
case INT_FLASH:
#if SAM4S
/*! This erases 8 pages of flash before writing */
if (flash_erase_page(address, IFLASH_ERASE_PAGES_8)) {
return ERR_INVALID_ARG;
}
if (flash_write(address, (const void *)buffer, len, false)) {
return ERR_INVALID_ARG;
}
#elif SAM4L
flashcalw_memcpy((volatile void *)address, (const void *)buffer,
len, true);
#else
if (flash_write(address, (const void *)buffer, len, true)) {
return ERR_INVALID_ARG;
}
#endif
break;
#if SAM4S
case INT_USERPAGE:
if (flash_write_user_signature((const void *)buffer, len)) {
return ERR_INVALID_ARG;
}
break;
#endif
#if defined(USE_EXTMEM) && defined(CONF_BOARD_AT45DBX)
case AT45DBX:
{
uint32_t sector = address / AT45DBX_SECTOR_SIZE;
if (!at45dbx_write_sector_open(sector)) {
return ERR_BAD_ADDRESS;
}
at45dbx_write_sector_from_ram((const void *)buffer);
at45dbx_write_close();
}
break;
#endif
default:
return ERR_INVALID_ARG;
}
return STATUS_OK;
}
status_code_t nvm_write_char(mem_type_t mem, uint32_t address, uint8_t data)
{
switch (mem) {
case INT_FLASH:
#if SAM4S
/*! This erases 8 pages of flash before writing */
if (flash_erase_page(address, IFLASH_ERASE_PAGES_8)) {
return ERR_INVALID_ARG;
} else if (flash_write(address, (const void *)&data, 1,
false)) {
return ERR_INVALID_ARG;
}
#else
if (flash_write(address, (const void *)&data, 1, true)) {
return ERR_INVALID_ARG;
}
#endif
break;
#if SAM4S
case INT_USERPAGE:
if (flash_write_user_signature((const void *)&data, 1)) {
return ERR_INVALID_ARG;
}
break;
#endif
#if defined(USE_EXTMEM) && defined(CONF_BOARD_AT45DBX)
case AT45DBX:
if (!at45dbx_write_byte_open() address) {
return ERR_BAD_ADDRESS;
}
at45dbx_write_byte(data);
at45dbx_write_close();
at45dbx_read_byte_open(address);
read = at45dbx_read_byte();
at45dbx_read_close();
break;
#endif
default:
return ERR_INVALID_ARG;
}
return STATUS_OK;
}