/***************************************************************************//**
 * @file     targetdev.c
 * @brief    ISP support function source file
 * @version  0x32
 * @date     14, June, 2017
 *
 * SPDX-License-Identifier: Apache-2.0
 * @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
 ******************************************************************************/
#include "targetdev.h"
#include "isp_user.h"

uint32_t GetApromSize()
{
    //the smallest of APROM size is 2K
    uint32_t size = 0x800, data;

    do
    {
        int result;

        result = FMC_Read_User(size, &data);

        if (result < 0)
        {
            return size;
        }
        else
        {
            size *= 2;
        }
    } while (1);
}

// Data Flash is shared with APROM.
// The size and start address are defined in CONFIG1.
void GetDataFlashInfo(uint32_t *addr, uint32_t *size)
{
    uint32_t uData;
    *size = 0;
    FMC_Read_User(Config0, &uData);
    uData &= 0x000FFFFF;

    if ((uData & 0x01) == 0)   //DFEN enable
    {
        FMC_Read_User(Config1, &uData);
        uData &= 0x000FFFFF;

        if (uData > g_apromSize || uData & (FMC_FLASH_PAGE_SIZE - 1))   //avoid config1 value from error
        {
            uData = g_apromSize;
        }

        *addr = uData;
        *size = g_apromSize - uData;
    }
    else
    {
        *addr = g_apromSize;
        *size = 0;
    }
}
