/**
  ******************************************************************************
  * @file    hw_config.c
  * @author  NONE
  * @version NONE
  * @date    NONE
  * @brief   NONE
  ******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "hw_config.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus      HSEStartUpStatus;
EXTI_InitTypeDef EXTI_InitStructure;

/* Extern variables ----------------------------------------------------------*/
extern __IO uint8_t PrevXferComplete;
extern __IO uint8_t PrevXferComplete1;

/* Private function prototypes -----------------------------------------------*/
static void IntToUnicode(uint32_t value, uint8_t *pbuf, uint8_t len);
/* Private functions ---------------------------------------------------------*/

/**
  * Function Name  : Set_System
  * Description    : Configures Main system clocks & power.
  * Input          : None.
  * Return         : None.
  */
void Set_System(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_mhxxx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       startup_mhxxx.c file
     */

    /******************************************/
    /*           Enable the PWR clock         */
    /******************************************/
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);


    /********************************************/
    /*  Configure USB DM/DP pins                */
    /********************************************/
    GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_11 | GPIO_Pin_12;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AIN;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    //PA0:A PA1:B...PA7:H
    GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

#ifdef USB_LOW_PWR_MGMT_SUPPORT

    EXTI_InitTypeDef EXTI_InitStructure;
    /**********************************************************************/
    /*  Configure the EXTI line 18 connected internally to the USB IP     */
    /**********************************************************************/

    EXTI_ClearITPendingBit(EXTI_Line18);

    EXTI_InitStructure.EXTI_Line    = EXTI_Line18;
    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
    EXTI_InitStructure.EXTI_LineCmd = ENABLE;
    EXTI_Init(&EXTI_InitStructure);

#endif /* USB_LOW_PWR_MGMT_SUPPORT */
}

/**
  * Function Name  : Set_USBClock
  * Description    : Configures USB Clock input (48MHz).
  * Input          : None.
  * Output         : None.
  * Return         : None.
  */
void Set_USBClock(void)
{
    /* Select USBCLK source */
    RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);

    /* Enable the USB clock */
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
}

/**
  * Function Name  : Leave_LowPowerMode.
  * Description    : Restores system clocks and power while exiting suspend mode.
  * Input          : None.
  * Output         : None.
  * Return         : None.
  */
void Leave_LowPowerMode(void)
{
    DEVICE_INFO *pInfo = &Device_Info;

    /* Set the device state to the correct state */
    if (pInfo->Current_Configuration != 0)
    {
        /* Device configured */
        bDeviceState = CONFIGURED;
    }
    else
    {
        bDeviceState = ATTACHED;
    }

#ifdef USB_LOW_PWR_MGMT_SUPPORT
    /* Reset SLEEPDEEP bit of Cortex System Control Register */
    SCB->SCR &= (uint32_t) ~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));

    /*Enable SystemCoreClock*/
    SystemInit();

#endif /* USB_LOW_PWR_MGMT_SUPPORT */
}

/**
  * Function Name  : USB_Interrupts_Config.
  * Description    : Configures the USB interrupts.
  * Input          : None.
  * Output         : None.
  * Return         : None.
  */
void USB_Interrupts_Config(void)
{
    NVIC_InitTypeDef NVIC_InitStructure;
    /* 2 bit for pre-emption priority, 2 bits for subpriority */
    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

    /* Enable the USB interrupt */
    NVIC_InitStructure.NVIC_IRQChannel                   = USB_LP_CAN1_RX0_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 5;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority        = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd                = ENABLE;
    NVIC_Init(&NVIC_InitStructure);

#ifdef USB_LOW_PWR_MGMT_SUPPORT
    /* Enable the USB Wake-up interrupt */
    NVIC_InitStructure.NVIC_IRQChannel                   = USBWakeUp_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority        = 0;
    NVIC_Init(&NVIC_InitStructure);
#endif /* USB_LOW_PWR_MGMT_SUPPORT */

    /* Enable the Key EXTI line Interrupt */
    NVIC_InitStructure.NVIC_IRQChannel                   = EXTI9_5_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_Init(&NVIC_InitStructure);
}

/**
  * Function Name  : USB_Cable_Config.
  * Description    : Software Connection/Disconnection of USB Cable.
  * Input          : NewState: new state.
  * Output         : None.
  * Return         : None
  */
void USB_Cable_Config(FunctionalState NewState)
{
    if (NewState != DISABLE)
    {
        DP_PUUP = 1;
    }
    else
    {
        DP_PUUP = 0;
    }
}

/**
  * Function Name : Keyboard_Send.
  * Description   : prepares buffer to be sent containing Joystick event infos.
  * Input         : Keys: keys received from terminal.
  * Output        : None.
  * Return value  : None.
  */
void Keyboard_Send(void)
{
    uint8_t Pos                = 2;
    uint8_t Keyboard_Buffer[8] = {0, 0, 0, 0, 0, 0, 0, 0};
    uint8_t Mouse_Buffer[4]    = {0, 0, 0, 0};
    int8_t  X = 0, Y = 0;

    if (PrevXferComplete)
    {
        if ((Pos < 8) && !(GPIOA->IDR & GPIO_Pin_0))
            Keyboard_Buffer[Pos++] = 0x04;
        PrevXferComplete = 0;
        GPIOA->BSRR      = 0x10;
        USB_SIL_Write(EP1_IN, Keyboard_Buffer, 8);
        SetEPTxValid(ENDP1);
        GPIOA->BRR = 0x10;
    }
    if (PrevXferComplete1)
    {
        if (!(GPIOA->IDR & GPIO_Pin_0))
            X -= CURSOR_STEP;
        Mouse_Buffer[1]   = X;
        Mouse_Buffer[2]   = Y;
        PrevXferComplete1 = 0;
        GPIOA->BSRR       = 0x10;
        USB_SIL_Write(EP2_IN, Mouse_Buffer, 4);
        SetEPTxValid(ENDP2);
        GPIOA->BRR = 0x10;
    }
}

/**
  * Function Name  : Get_SerialNum.
  * Description    : Create the serial number string descriptor.
  * Input          : None.
  * Output         : None.
  * Return         : None.
  */
void Get_SerialNum(void)
{
    uint32_t Device_Serial0, Device_Serial1, Device_Serial2;

    Device_Serial0 = *(uint32_t *)ID1;
    Device_Serial1 = *(uint32_t *)ID2;
    Device_Serial2 = *(uint32_t *)ID3;

    Device_Serial0 += Device_Serial2;

    if (Device_Serial0 != 0)
    {
        IntToUnicode(Device_Serial0, &Joystick_StringSerial[2], 8);
        IntToUnicode(Device_Serial1, &Joystick_StringSerial[18], 4);
    }
}

/**
  * Function Name  : HexToChar.
  * Description    : Convert Hex 32Bits value into char.
  * Input          : None.
  * Output         : None.
  * Return         : None.
  */
static void IntToUnicode(uint32_t value, uint8_t *pbuf, uint8_t len)
{
    uint8_t idx = 0;

    for (idx = 0; idx < len; idx++)
    {
        if (((value >> 28)) < 0xA)
        {
            pbuf[2 * idx] = (value >> 28) + '0';
        }
        else
        {
            pbuf[2 * idx] = (value >> 28) + 'A' - 10;
        }

        value = value << 4;

        pbuf[2 * idx + 1] = 0;
    }
}
/******************* (C) COPYRIGHT  2024  WIZnet *****END OF FILE****/
