/*******************************************************************************
 * File Name         : MCUFlash.c
 * Description       :
 * Created on        : 2018Äê5ÔÂ29ÈÕ
 * Author            : HIDO
 *******************************************************************************/

/*******************************************************************************
 *                              Include Files                                  *
 *******************************************************************************/
#include "MCUFlash.h"
#include "stm32f1xx_hal.h"
#include "string.h"

/*******************************************************************************
 *                                  Macro                                      *
 *******************************************************************************/

/*******************************************************************************
 *                             Type Definition                                 *
 *******************************************************************************/

/*******************************************************************************
 *                             Local Variable                                  *
 *******************************************************************************/

/*******************************************************************************
 *                        Local Function Declaration                           *
 *******************************************************************************/

/*******************************************************************************
 *                             Local Function                                  *
 *******************************************************************************/

/*******************************************************************************
 *                             Global Function                                 *
 *******************************************************************************/

/*******************************************************************************
 * Function Name     : MCUFlash_Init
 * Description       : 
 * Input             : 
 * Output            : 
 * Return            : 
 * Author            : HIDO
 * Modified Date:    : 2018Äê5ÔÂ29ÈÕ
 *******************************************************************************/
HIDO_INT32 MCUFlash_Init(void)
{
    HAL_FLASH_Unlock();

    __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPERR | FLASH_FLAG_OPTVERR);

    return HIDO_OK;
}

/*******************************************************************************
 * Function Name     : MCUFlash_Erase
 * Description       :
 * Input             :
 * Output            :
 * Return            :
 * Author            : HIDO
 * Modified Date:    : 2018Äê5ÔÂ29ÈÕ
 *******************************************************************************/
HIDO_INT32 MCUFlash_Erase(HIDO_UINT32 _u32EraseAddr, HIDO_UINT32 _u32EraseLen)
{
    FLASH_EraseInitTypeDef stEraseInit;
    HIDO_UINT32 u32EraseError = 0;

    if(_u32EraseAddr < FLASH_BASE || _u32EraseAddr > FLASH_BANK1_END)
    {
        return HIDO_ERR;
    }

    if(_u32EraseLen < FLASH_PAGE_SIZE)
    {
        _u32EraseLen = FLASH_PAGE_SIZE;
    }

    stEraseInit.TypeErase = FLASH_TYPEERASE_PAGES;
    stEraseInit.Banks = FLASH_BANK_1;
    stEraseInit.PageAddress = _u32EraseAddr & (~(FLASH_PAGE_SIZE - 1));
    stEraseInit.NbPages = (_u32EraseLen / FLASH_PAGE_SIZE) + ((_u32EraseLen % FLASH_PAGE_SIZE) == 0 ? 0 : 1);

    if(HAL_FLASHEx_Erase(&stEraseInit, &u32EraseError) != HAL_OK)
    {
        return HIDO_ERR;
    }

    return HIDO_OK;
}

/*******************************************************************************
 * Function Name     : MCUFlash_Write
 * Description       :
 * Input             :
 * Output            :
 * Return            :
 * Author            : HIDO
 * Modified Date:    : 2018Äê5ÔÂ29ÈÕ
 *******************************************************************************/
HIDO_INT32 MCUFlash_Write(HIDO_UINT32 _u32WriteAddr, HIDO_UINT8 *_pu8WriteData, HIDO_UINT32 _u32WriteLen)
{
    HIDO_UINT32 i = 0;
    HIDO_UINT32 u32TmpLen = 0;
    HIDO_UINT32 u32TmpValue = 0;

    while (_u32WriteLen != 0)
    {
        if (_u32WriteLen < 4)
        {
            u32TmpValue = 0xFFFFFFFF;
            for(i = 0; i < _u32WriteLen; i++)
            {
                ((HIDO_UINT8 *)&u32TmpValue)[i] = _pu8WriteData[i];
            }
            u32TmpLen = _u32WriteLen;
        }
        else
        {
            u32TmpValue = *(HIDO_UINT32 *) _pu8WriteData;
            u32TmpLen = 4;
        }

        if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, _u32WriteAddr, u32TmpValue) != HAL_OK)
        {
            return HIDO_ERR;
        }

        _u32WriteAddr += u32TmpLen;
        _pu8WriteData += u32TmpLen;
        _u32WriteLen -= u32TmpLen;
    }

    return HIDO_OK;
}

/*******************************************************************************
 * Function Name     : MCUFlash_Read
 * Description       :
 * Input             :
 * Output            :
 * Return            :
 * Author            : HIDO
 * Modified Date:    : 2018Äê5ÔÂ29ÈÕ
 *******************************************************************************/
HIDO_INT32 MCUFlash_Read(HIDO_UINT8 *_pu8ReadData, HIDO_UINT32 _u32ReadAddr, HIDO_UINT32 _u32ReadLen)
{
    memcpy(_pu8ReadData, (HIDO_VOID *)_u32ReadAddr, _u32ReadLen);

    return HIDO_OK;
}