/********************************** (C) COPYRIGHT *******************************
* File Name          : main.c
* Author             : WCH
* Version            : V1.0.0
* Date               : 2021/08/08
* Description        : Main program body.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for 
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/ 

/*
 * @Note
 * Composite Keyboard and Mouse Example:
 * This example uses PA4-PA7 and PB12-PB15 to simulate mouse movement and keyboard
 * key pressing respectively, active low. At the same time, it also uses USART2
 * to receive data sent from the host to simulate keyboard key pressing and releasing.
 *
 */

#include "debug.h"
#include "usb_lib.h"
#include "usb_desc.h"
#include "usb_pwr.h"
#include "usb_prop.h"
#include "usbd_composite_km.h"
/* Global define */

/* Global Variable */    

/*********************************************************************
 * @fn      main
 *
 * @brief   Main program.
 *
 * @return  none
 */
int main(void)
{   
    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
    Delay_Init();
    USART_Printf_Init( 115200 );
    printf("SystemClk:%d\r\n",SystemCoreClock);
    printf("USBD Keyboard&Mouse Demo\r\n");

    /* Initialize USART2 for receiving the specified keyboard data */
    USART2_Init( 115200 );
    printf( "USART2 Init OK!\r\n" );

    /* Initialize GPIO for keyboard scan */
    KB_Scan_Init( );
    KB_Sleep_Wakeup_Cfg( );
    printf( "KB Scan Init OK!\r\n" );

    /* Initialize GPIO for mouse scan */
    MS_Scan_Init( );
    MS_Sleep_Wakeup_Cfg( );
    printf( "MS Scan Init OK!\r\n" );

    /* Initialize timer for Keyboard and mouse scan timing */
    TIM3_Init( 1, 7199 );
    printf( "TIM3 Init OK!\r\n" );

    Set_USBConfig();
    USB_Init();
    USB_Interrupts_Config();
    
    while(1)
    {
        if( bDeviceState == CONFIGURED )
        {
            /* Handle keyboard scan data */
            KB_Scan_Handle(  );

            /* Handle keyboard lighting */
            KB_LED_Handle( );

            /* Handle mouse scan data */
            MS_Scan_Handle( );

            /* Handle USART2 receiving data */
            USART2_Receive_Handle( );
        }
    }
}