/**
  ******************************************************************************
  * @file    I2S/I2S_Audio/stm32f4xx_it.c
  * @author  MCD Application Team
  * @version V1.8.0
  * @date    04-November-2016
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include <stdbool.h>

#include "stm32f4xx_it.h"
#include "main.h"
#include "lcd.h"
#include "menu.h"

#include "usbd_core.h"

static __IO uint32_t Timer10  = 0;
static __IO uint32_t Timer750 = 0;;
__IO uint32_t uwRTCAlarmCount = 0;
__IO uint32_t WWDGCount = 0;

// Indicates if the WAV file is currently being played.
extern	uint8_t		play_state;
extern	uint16_t	msec;
extern	uint8_t		sec;
extern	uint8_t		min;

uint16_t a = 0;
uint16_t b = 0;
uint16_t c = 0;

extern USB_OTG_CORE_HANDLE USB_OTG_dev;

extern uint32_t USBD_OTG_ISR_Handler(USB_OTG_CORE_HANDLE * pdev);

/** @addtogroup STM32F4xx_StdPeriph_Examples
  * @{
  */

/** @addtogroup I2S_Audio
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M4 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
  * @brief   This function handles NMI exception.
  * @param  None
  * @retval None
  */
void NMI_Handler(void)
{
}

/**
  * @brief  This function handles Hard Fault exception.
  * @param  None
  * @retval None
  */
void HardFault_Handler(void)
{
	/* Go to infinite loop when Hard Fault exception occurs */
	while (1)
	{
	}
}

/**
  * @brief  This function handles Memory Manage exception.
  * @param  None
  * @retval None
  */
void MemManage_Handler(void)
{
	/* Go to infinite loop when Memory Manage exception occurs */
	while (1)
	{
	}
}

/**
  * @brief  This function handles Bus Fault exception.
  * @param  None
  * @retval None
  */
void BusFault_Handler(void)
{
	/* Go to infinite loop when Bus Fault exception occurs */
	while (1)
	{
	}
}

/**
  * @brief  This function handles Usage Fault exception.
  * @param  None
  * @retval None
  */
void UsageFault_Handler(void)
{
	/* Go to infinite loop when Usage Fault exception occurs */
	while (1)
	{
	}
}

/**
  * @brief  This function handles SVCall exception.
  * @param  None
  * @retval None
  */
void SVC_Handler(void)
{
}

/**
  * @brief  This function handles Debug Monitor exception.
  * @param  None
  * @retval None
  */
void DebugMon_Handler(void)
{
}

/**
  * @brief  This function handles PendSVC exception.
  * @param  None
  * @retval None
  */
void PendSV_Handler(void)
{
}

/**
  * @brief  This function handles SysTick Handler.
  * @param  None
  * @retval None
  */
void SysTick_Handler(void)
{
	TimingDelay_Decrement();

	WWDGCount++;
	if(WWDGCount > 8)
	{
		/* Update WWDG counter */
		WWDG_SetCounter(127);
		WWDGCount = 0;
	}

	Timer10++;

	Timer750++;

	if(Timer10 >= 10) {
		// process_keys();
		// process_buffer();
		Timer10 = 0;
	}

	if(Timer750 >= 750)
	{
		dis_xxx();
		Timer750 = 0;
	}

}

/******************************************************************************/
/*                 STM32F4xx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f40xx.s/startup_stm32f427x.s).                         */
/******************************************************************************/

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/


/**
  * @}
  */
void OTG_FS_IRQHandler(void)

{
	USBD_OTG_ISR_Handler(&USB_OTG_dev);
}
/**
  * @}
  */

/**
  * @brief  This function handles RTC Alarm interrupt (A and B) request.
  * @param  None
  * @retval None
  */
void RTC_Alarm_IRQHandler(void)
{
	/* Check on the Alarm A flag and on the number of interrupts per Second (60*8) */
	if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
	{
		/* Clear RTC AlarmA Flags */
		RTC_ClearITPendingBit(RTC_IT_ALRA);

		if(play_state == STATE_PLAY) {
			sec++;
			if(sec >= 60) {
				sec = 0;
				min++;
				dis_min(min);
			}
			dis_sec(sec);
		}
	}

	/* Disable the RTC Clock */
	// RCC_RTCCLKCmd(DISABLE);

	/* Clear the EXTI line 17 */
	EXTI_ClearITPendingBit(EXTI_Line17);
}

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/