/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    stm32l0xx_it.c
  * @brief   Interrupt Service Routines.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32l0xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

#include "string.h"
#include "usart.h"
#include "dma.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */

/* USER CODE END TD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
 
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
	
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/* External variables --------------------------------------------------------*/
extern RTC_HandleTypeDef hrtc;
/* USER CODE BEGIN EV */
extern uint8_t Tof_Data;

extern uint8_t Usart1_RxBuff[USART_RX_LENGTH];
extern uint8_t Usart2_RxBuff[USART_RX_LENGTH];

volatile uint8_t LORA_STATE = LORA_NOT_JOIN;
volatile uint8_t SEND_STATE = SET;


/* USER CODE END EV */

/******************************************************************************/
/*           Cortex-M0+ Processor Interruption and Exception Handlers          */ 
/******************************************************************************/
/**
  * @brief This function handles Non maskable interrupt.
  */
void NMI_Handler(void)
{
  /* USER CODE BEGIN NonMaskableInt_IRQn 0 */

  /* USER CODE END NonMaskableInt_IRQn 0 */
  /* USER CODE BEGIN NonMaskableInt_IRQn 1 */

  /* USER CODE END NonMaskableInt_IRQn 1 */
}

/**
  * @brief This function handles Hard fault interrupt.
  */
void HardFault_Handler(void)
{
  /* USER CODE BEGIN HardFault_IRQn 0 */

  /* USER CODE END HardFault_IRQn 0 */
  while (1)
  {
    /* USER CODE BEGIN W1_HardFault_IRQn 0 */
    /* USER CODE END W1_HardFault_IRQn 0 */
  }
}

/**
  * @brief This function handles System service call via SWI instruction.
  */
void SVC_Handler(void)
{
  /* USER CODE BEGIN SVC_IRQn 0 */

  /* USER CODE END SVC_IRQn 0 */
  /* USER CODE BEGIN SVC_IRQn 1 */

  /* USER CODE END SVC_IRQn 1 */
}

/**
  * @brief This function handles Pendable request for system service.
  */
void PendSV_Handler(void)
{
  /* USER CODE BEGIN PendSV_IRQn 0 */

  /* USER CODE END PendSV_IRQn 0 */
  /* USER CODE BEGIN PendSV_IRQn 1 */

  /* USER CODE END PendSV_IRQn 1 */
}

/**
  * @brief This function handles System tick timer.
  */
void SysTick_Handler(void)
{
  /* USER CODE BEGIN SysTick_IRQn 0 */

  /* USER CODE END SysTick_IRQn 0 */
  HAL_IncTick();
  /* USER CODE BEGIN SysTick_IRQn 1 */

  /* USER CODE END SysTick_IRQn 1 */
}

/******************************************************************************/
/* STM32L0xx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32l0xx.s).                    */
/******************************************************************************/

/**
  * @brief This function handles RTC global interrupt through EXTI lines 17, 19 and 20 and LSE CSS interrupt through EXTI line 19.
  */
void RTC_IRQHandler(void)
{
  /* USER CODE BEGIN RTC_IRQn 0 */

  /* USER CODE END RTC_IRQn 0 */
  HAL_RTCEx_WakeUpTimerIRQHandler(&hrtc);
  /* USER CODE BEGIN RTC_IRQn 1 */

  /* USER CODE END RTC_IRQn 1 */
}

/**
  * @brief This function handles DMA1 channel 4, channel 5, channel 6 and channel 7 interrupts.
  */
void DMA1_Channel4_5_6_7_IRQHandler(void)
{
  /* USER CODE BEGIN DMA1_Channel4_5_6_7_IRQn 0 */

  /* USER CODE END DMA1_Channel4_5_6_7_IRQn 0 */
  
  /* USER CODE BEGIN DMA1_Channel4_5_6_7_IRQn 1 */

  /* USER CODE END DMA1_Channel4_5_6_7_IRQn 1 */
}

/**
  * @brief This function handles USART2 global interrupt / USART2 wake-up interrupt through EXTI line 26.
  */
void USART2_IRQHandler(void)
{
  /* USER CODE BEGIN USART2_IRQn 0 */
//	if(LL_USART_IsActiveFlag_RXNE(USART2))
//	{
//		
//		uint8_t Res = LL_USART_ReceiveData8(USART2);
//		
//		LL_USART_TransmitData8(USART1,Res);	
//		while(LL_USART_IsActiveFlag_TXE(USART1)==RESET);
//	}
	
	
	
	if(LL_USART_IsActiveFlag_IDLE(USART2))
	{
//		LL_USART_TransmitData8(USART2,'d');	
//		while(LL_USART_IsActiveFlag_TXE(USART2)==RESET);
//		for(int i = 0;i<USART_RX_LENGTH-LL_DMA_GetDataLength(DMA1,LL_DMA_CHANNEL_6);i++)
//		{
//			LL_USART_TransmitData8(USART2,Usart2_RxBuff[i]);	
//			while(LL_USART_IsActiveFlag_TXE(USART2)==RESET);
//		}
//		LL_USART_TransmitData8(USART2,'d');	
//			while(LL_USART_IsActiveFlag_TXE(USART2)==RESET);
		
		if(strncmp("\r\n+STATUS:",(const char *)Usart2_RxBuff,10) == 0)
		{
			switch(Usart2_RxBuff[10]-0x30)
			{
				case LORA_RESET:
					LORA_STATE = LORA_RESET;
					break;
				case LORA_P2P:
					LORA_STATE = LORA_P2P;
					break;
				case LORA_NOT_JOIN:
					LORA_STATE = LORA_NOT_JOIN;
					break;
				case LORA_JOINED:
					LORA_STATE = LORA_JOINED;
					break;
			}
		}	
		else if(strncmp("\r\n^STATUS:",(const char *)Usart2_RxBuff,10) == 0)
		{
			switch(Usart2_RxBuff[10]-0x30)
			{
				case LORA_RESET:
					LORA_STATE = LORA_RESET;
					break;
				case LORA_P2P:
					LORA_STATE = LORA_P2P;
					break;
				case LORA_NOT_JOIN:
					LORA_STATE = LORA_NOT_JOIN;
					break;
				case LORA_JOINED:
					LORA_STATE = LORA_JOINED;
					break;
			}
		}	
		else if(strncmp("^STATUS:",(const char *)Usart2_RxBuff,8) == 0)
		{
			switch(Usart2_RxBuff[8]-0x30)
			{
				case LORA_RESET:
					LORA_STATE = LORA_RESET;
					break;
				case LORA_P2P:
					LORA_STATE = LORA_P2P;
					break;
				case LORA_NOT_JOIN:
					LORA_STATE = LORA_NOT_JOIN;
					break;
				case LORA_JOINED:
					LORA_STATE = LORA_JOINED;
					break;
			}
		}	
		
		
		LL_DMA_DisableChannel(USART2_DMA,USART2_DMA_CHANNEL);
		
		Usart_DMA_CONFIG(USART2_DMA, USART2_DMA_CHANNEL, USART2, (uint32_t)Usart2_RxBuff,USART_RX_LENGTH);

		memset(Usart2_RxBuff,0,sizeof(Usart2_RxBuff));
		
		LL_USART_ClearFlag_IDLE(USART2);
	}
  /* USER CODE END USART2_IRQn 0 */
  /* USER CODE BEGIN USART2_IRQn 1 */

  /* USER CODE END USART2_IRQn 1 */
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/