/**
  ******************************************************************************
  * @file    main.c
  * @author  Milandr Application Team
  * @version V2.0.4
  * @date    02/11/2024
  * @brief   Main program body.
  ******************************************************************************
  * <br><br>
  *
  * THE PRESENT FIRMWARE IS FOR GUIDANCE ONLY. IT AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING MILANDR'S PRODUCTS IN ORDER TO FACILITATE
  * THE USE AND SAVE TIME. MILANDR SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES RESULTING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR A USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2026 Milandr</center></h2>
  */

/* Includes ------------------------------------------------------------------*/
#include "MDR32F9Qx_eeprom.h"
#include "MDR32F9Qx_port.h"
#include "MDR32F9Qx_rst_clk.h"

/** @addtogroup __MDR32Fx_StdPeriph_Examples MDR32Fx StdPeriph Examples
  * @{
  */

/** @addtogroup __MDR1986VE91_EVAL MDR1986VE91 Evaluation Board
  * @{
  */

/** @addtogroup EEPROM_Mass_Erase EEPROM_Mass_Erase
  * @{
  */

/* Private define ------------------------------------------------------------*/
#define EEPROM_MAIN_BANK_SIZE       (128*1024)
#define EEPROM_INFO_BANK_SIZE       (4*1024)

#define LED_MASK                    (PORT_Pin_10 | PORT_Pin_11 | PORT_Pin_12 | PORT_Pin_13)
#define LED0_MASK                   PORT_Pin_10

#define RESULT_OK                   0
#define RESULT_ERR                  1

/* Private macro -------------------------------------------------------------*/
#define LED_TST_NUM(num)            (((num) * LED0_MASK) & LED_MASK)

/* Private variables ---------------------------------------------------------*/
static PORT_InitTypeDef PORT_InitStructure;

/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Pseudo random function
  * @param  addr: 32-bit encoded value
  * @retval 32-bit encoder result
  */
uint32_t Pseudo_Rand(uint32_t addr)
{
    uint32_t hash = 0;
    uint32_t i = 0;
    uint8_t* key = (uint8_t *) &addr;

    for(i = 0; i < 4; i++)
    {
        hash += key[i];
        hash += (hash << 10);
        hash ^= (hash >> 6);
    }

    for(i = 0; i < 256; i++)
    {
        hash += (hash << 10);
        hash ^= (hash >> 6);
    }

    hash += (hash << 3);
    hash ^= (hash >> 11);
    hash += (hash << 15);

    return hash;
}

/**
  * @brief  Delay function
  * @param  None
  * @retval None
  */
void Delay(void)
{
    volatile uint32_t i = 0;

    for(i = 0; i < 100000; i++) {}
}

/**
  * @brief  Check main block is empty
  * @param  None
  * @retval Result: RESULT_OK or RESULT_ERR
  */
uint32_t BlankCheckMainMemory(void)
{
    uint32_t Address = 0;
    EEPROM_Mem_Bank BankSelector;
    uint32_t Data = 0;
    uint32_t i = 0;
    uint32_t Errs = RESULT_OK;

    /* Check main memory bank */
    Address = 0x08000000;
    BankSelector = EEPROM_Main_Bank_Select;
    Data = 0xFFFFFFFF;
    for(i = 0; i < EEPROM_MAIN_BANK_SIZE; i += 4)
    {
        if (EEPROM_ReadWord (Address + i, BankSelector) != Data)
        {
            Errs = RESULT_ERR;
            break;
        }
    }
    return Errs;
}

/**
  * @brief  Check info block is empty
  * @param  None
  * @retval Result: RESULT_OK or RESULT_ERR
  */
uint32_t BlankCheckInfoMemory(void)
{
    uint32_t Address = 0;
    EEPROM_Mem_Bank BankSelector;
    uint32_t Data = 0;
    uint32_t i = 0;
    uint32_t Errs = RESULT_OK;

    /* Check information memory bank */
    Address = 0x08000000;
    BankSelector = EEPROM_Info_Bank_Select;
    Data = 0xFFFFFFFF;
    for(i = 0; i < EEPROM_INFO_BANK_SIZE; i += 4)
    {
#if defined (USE_MDR1986VE9x_002TU) && defined (USE_EEPROM_FACTORY_DATA_PROTECTION)
        if (((Address + i) & 0xF) == 0)
        {
            /* Skip Sector_A. */
            continue;
        }
#endif
        if (EEPROM_ReadWord(Address + i, BankSelector) != Data)
        {
            Errs = RESULT_ERR;
            break;
        }
    }
    return Errs;
}

/**
  * @brief  Fill main memory bank with pseudo-random values
  * @param  None
  * @retval None
  */
void FillMainMemory(void)
{
    uint32_t Address = 0;
    EEPROM_Mem_Bank BankSelector;
    uint32_t Data = 0;
    uint32_t i = 0;

    /* Fill main memory bank */
    Address = 0x08000000;
    BankSelector = EEPROM_Main_Bank_Select;
    for(i = 0; i < EEPROM_MAIN_BANK_SIZE; i += 11 * 4)
    {
        Data = Pseudo_Rand(Address + i);
        EEPROM_ProgramWord(Address + i, BankSelector, Data);
    }
}

/**
  * @brief  Verify main memory bank
  * @param  None
  * @retval Result: RESULT_OK or RESULT_ERR
  */
uint32_t VerifyMainMemory(void)
{
    uint32_t Address = 0;
    EEPROM_Mem_Bank BankSelector;
    uint32_t Data = 0;
    uint32_t i = 0;
    uint32_t Errs = RESULT_OK;

    /* Check main memory bank */
    Address = 0x08000000;
    BankSelector = EEPROM_Main_Bank_Select;
    for(i = 0; i < EEPROM_MAIN_BANK_SIZE; i += 11 * 4)
    {
        Data = Pseudo_Rand(Address + i);
        if (EEPROM_ReadWord(Address + i, BankSelector) != Data)
        {
            Errs = RESULT_ERR;
            break;
        }
    }
    return Errs;
}

/**
  * @brief  Fill info memory bank with pseudo-random values
  * @param  None
  * @retval None
  */
void FillInfoMemory(void)
{
    uint32_t Address = 0;
    EEPROM_Mem_Bank BankSelector;
    uint32_t Data = 0;
    uint32_t i = 0;

    /* Fill information memory bank */
    Address = 0x08000000;
    BankSelector = EEPROM_Info_Bank_Select;
    for(i = 0; i < EEPROM_INFO_BANK_SIZE; i += 4)
    {
#if defined (USE_MDR1986VE9x_002TU) && defined (USE_EEPROM_FACTORY_DATA_PROTECTION)
        if (((Address + i) & 0xF) == 0)
        {
            /* Skip Sector_A. */
            continue;
        }
#endif
        Data = Pseudo_Rand(Address + i + 1);
        EEPROM_ProgramWord(Address + i, BankSelector, Data);
    }
}

/**
  * @brief  Verify info memory bank
  * @param  None
  * @retval Result: RESULT_OK or RESULT_ERR
  */
uint32_t VerifyInfoMemory(void)
{
    uint32_t Address = 0;
    EEPROM_Mem_Bank BankSelector;
    uint32_t Data = 0;
    uint32_t i = 0;
    uint32_t Errs = RESULT_OK;

    /* Check information memory bank */
    Address = 0x08000000;
    BankSelector = EEPROM_Info_Bank_Select;
    for(i = 0; i < EEPROM_INFO_BANK_SIZE; i += 4)
    {
#if defined (USE_MDR1986VE9x_002TU) && defined (USE_EEPROM_FACTORY_DATA_PROTECTION)
        if (((Address + i) & 0xF) == 0)
        {
            /* Skip Sector_A. */
            continue;
        }
#endif
        Data = Pseudo_Rand(Address + i + 1);
        if (EEPROM_ReadWord(Address + i, BankSelector) != Data)
        {
            Errs = RESULT_ERR;
            break;
        }
    }
    return Errs;
}

/**
  * @brief  Indicates status of selected test
  * @param  TestStatus - test result
  * @param  TestNum - test number
  * @retval None
  */
void ShowTestStatus(uint32_t TestStatus, uint32_t TestNum)
{
    uint32_t Leds = LED_TST_NUM(TestNum);
    if (TestStatus == RESULT_OK)
    {
        PORT_Write(MDR_PORTD, Leds);
        Delay();
    }
    else
    {
        while(1)
        {
            Leds ^= LED_TST_NUM(TestNum);
            PORT_Write(MDR_PORTD, Leds);
            Delay();
        }
    }
}

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main(void)
{
    RST_CLK_DeInit();
    SystemCoreClockUpdate();

    /* Enables peripheral clocks */
    RST_CLK_PCLKcmd((RST_CLK_PCLK_PORTD | RST_CLK_PCLK_EEPROM), ENABLE);

    /* Configure LED pins for output to switch LEDs on/off */
    PORT_StructInit(&PORT_InitStructure);
    PORT_InitStructure.PORT_Pin   = LED_MASK;
    PORT_InitStructure.PORT_OE    = PORT_OE_OUT;
    PORT_InitStructure.PORT_FUNC  = PORT_FUNC_PORT;
    PORT_InitStructure.PORT_MODE  = PORT_MODE_DIGITAL;
    PORT_InitStructure.PORT_SPEED = PORT_SPEED_SLOW;

    PORT_Init(MDR_PORTD, &PORT_InitStructure);

    /* Erase main and information memory banks */
    EEPROM_EraseAllPages(EEPROM_All_Banks_Select);

    /* Indicate status of erasing main memory bank */
    ShowTestStatus(BlankCheckMainMemory(), 0x1);

    /* Indicate status of erasing information memory bank */
    ShowTestStatus(BlankCheckInfoMemory(), 0x2);

    /* Fill main memory bank */
    FillMainMemory();

    /* Verify main memory bank */
    ShowTestStatus(VerifyMainMemory(), 0x3);

    /* Fill information memory bank */
    FillInfoMemory();

    /* Verify information memory bank */
    ShowTestStatus(VerifyInfoMemory(), 0x4);

    /* Erase main memory bank only */
    EEPROM_EraseAllPages(EEPROM_Main_Bank_Select);

    /* Indicate status of erasing main memory bank */
    ShowTestStatus(BlankCheckMainMemory(), 0x5);

    /* Verify information memory bank */
    ShowTestStatus(VerifyInfoMemory(), 0x6);

    /* Fill main memory bank */
    FillMainMemory();

    /* Verify main memory bank */
    ShowTestStatus(VerifyMainMemory(), 0x7);

    /* Erase main and information memory banks */
    EEPROM_EraseAllPages(EEPROM_All_Banks_Select);

    /* Indicate status of erasing main memory bank */
    ShowTestStatus(BlankCheckMainMemory(), 0x8);

    /* Indicate status of erasing information memory bank */
    ShowTestStatus(BlankCheckInfoMemory(), 0x9);

    while(1) {}
}

/**
  * @brief  Reports the source file name, the source line number
  *         and expression text (if USE_ASSERT_INFO == 2) where
  *         the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @param  expr:
  * @retval None
  */
#if (USE_ASSERT_INFO == 1)
void assert_failed(uint8_t* file, uint32_t line)
{
    /* User can add his own implementation to report the source file name and line number.
       Ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

    /* Infinite loop */
    while(1) {}
}
#elif (USE_ASSERT_INFO == 2)
void assert_failed(uint8_t* file, uint32_t line, const uint8_t* expr)
{
    /* User can add his own implementation to report the source file name, line number and
       expression text.
       Ex: printf("Wrong parameters value (%s): file %s on line %d\r\n", expr, file, line) */

    /* Infinite loop */
    while(1) {}
}
#endif /* USE_ASSERT_INFO */

/** @} */ /* End of group EEPROM_Mass_Erase */

/** @} */ /* End of group __MDR1986VE91_EVAL */

/** @} */ /* End of group __MDR32Fx_StdPeriph_Examples */

/******************* (C) COPYRIGHT 2026 Milandr ********************************
*
* END OF FILE main.c */

