#include <Usart.h>
#include <Usart1.h>
#include "mk_uart.h"
#include <string.h>
#include <stdio.h>
#include "stdint.h"
//#include "modbus.h"
//#include "Rcc_Nvic_Systick.h"

//Êý¾Ý·¢ËͶÓÁбäÁ¿
EUART1_Frame m_EUART1_TxFrames[EUART1_TX_FRM_SIZE];	//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐ
volatile int8_t m_EUART1_TxFrm_Tail = 0;					//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐβָÕë
volatile int8_t m_EUART1_TxFrm_Head = 0;					//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐÍ·Ö¸Õë
volatile int8_t m_EUART1_TxFrm_FreeFrmLen = 0;			//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐÊ£ÓàÖ¡Êý
//DMAÊý¾Ý½ÓÊÕ»º´æ
uint8_t m_EUART1_DMA_RXBuf[EUART1_RX_BUF_SIZE];			//DMAÊý¾Ý½ÓÊÕ»º´æ
volatile int32_t m_EUART1_DMA_RXPtr = 0;					//µ±Ç°Êý¾ÝµØÖ·
//int16_t DMA2_rxtemp = 0,DMA2_rxtemp2 = 0;															//µ±Ç°Êý¾ÝµØÖ·»º´æ
//uint16_t datadelaycount2 = 0;													//Ê£Óà1λÊý¾ÝÑÓʱµÈ´ý´¦Àí
//±êÖ¾±äÁ¿
volatile uint8_t m_bEUART1PushingFrms = 0;				//ÕýÔÚÍù·¢ËͶÓÁдæÊý¾Ý
volatile uint8_t m_bEUART1CheckingSend = 0;				//ÕýÔÚÈ·ÈÏÊý¾Ý·¢ËÍ
volatile uint8_t m_bEUART1CheckingRec = 0;				//ÕýÔÚÈ·ÈϽÓÊÕÊý¾Ý
volatile uint8_t m_bEUART1TxEn = 0;						//ʹÄÜ·¢ËÍ

void (*Usart2ParseDataCallback)(uint8_t);
void Usart2InitVariables(void)
{
    m_EUART1_TxFrm_FreeFrmLen = EUART1_TX_FRM_SIZE-1;
}





//uint8_t overrun_flag=0;
//uint16_t t1,t2,t3,t4;
uint16_t t1;




void UART1_CheckReceive(void)
{
    int32_t DMACnt2 = 0;
    int32_t MaxDataLen2 = EUART1_RX_BUF_SIZE;

    //Èç¹ûÕýÔÚÍù·¢ËͶÓÁÐÖÐÌí¼ÓÊý¾Ý£¬Í˳ö
    if(m_bEUART1PushingFrms)
        return;
    //ÅжÏÊÇ·ñÕýÔÚCheck
    if(m_bEUART1CheckingRec)
        return;
    m_bEUART1CheckingRec = 1;
    //if(EUART1_RX_DMA_CH->CNDTR == 0)MK8000ÐÞ¸Ä
    {
        m_bEUART1CheckingRec = 0;
        return;
    }
    //DMACnt2 = EUART1_RX_BUF_SIZE - (EUART1_RX_DMA_CH->CNDTR);

    while( m_EUART1_DMA_RXPtr != DMACnt2 && MaxDataLen2 > 0)
    {
        Usart2ParseDataCallback(m_EUART1_DMA_RXBuf[m_EUART1_DMA_RXPtr]);//USART2°áÔ˵ÄÊý¾Ý»º´æ
        m_EUART1_DMA_RXPtr++;
        if( m_EUART1_DMA_RXPtr >= EUART1_RX_BUF_SIZE )
        {
            m_EUART1_DMA_RXPtr = 0;
        }
        //DMACnt2 = EUART1_RX_BUF_SIZE - (EUART1_RX_DMA_CH->CNDTR);MK8000ÐÞ¸Ä
        MaxDataLen2--;
    }
    m_bEUART1CheckingRec = 0;
}



#ifndef EXUART_USE_TXDMA
//²éѯ·½Ê½·¢ËÍÊý¾Ý
void UART2_CheckSend(void)
{
    static int32_t s_count2 = 0;
//	uint32_t temp32 = 0;

    if(m_bEUART1PushingFrms || m_bEUART1CheckingSend)//Íù·¢ËͶÓÁÐÖз¢Êý¾ÝºÍÈ·ÈÏÊý¾Ý·¢ËͶ¼Îª0ʱ
        return;
    m_bEUART1CheckingSend = 1;

    //Åж϶ÓÁÐÊÇ·ñΪ¿ÕÒÔ¼°DMAÊÇ·ñ¿ÕÏÐ
    //if ((EXT_UART2->ISR & UART_FLAG_TXE) == (uint16_t)RESET)	//Éϴη¢ËÍδÍê³ÉMK8000ÐÞ¸Ä
    {
        m_bEUART1CheckingSend = 0;
        return;
    }

    if(m_EUART1_TxFrm_Head == m_EUART1_TxFrm_Tail)					//¶ÓÁÐΪ¿Õ
    {
        //if((EXT_UART2->ISR & UART_FLAG_TC) != (uint16_t)RESET)	 	//·¢ËÍÍê±ÏMK8000ÐÞ¸Ä
        {
            if(m_bEUART1TxEn)
            {
                m_bEUART1TxEn = 0;
                t1++;
//				temp32 = GPIOC->CRH;			//C10Ðü¿ÕÊäÈë
//				temp32 &= ~(0x00000000F<<8);
//				temp32 |= (0x000000004<<8);
//				GPIOC->CRH = temp32;// */
            }
        }
        m_bEUART1CheckingSend = 0;
        return;
    }

    if(!m_bEUART1TxEn)
    {
        m_bEUART1TxEn = 1;
#ifdef BAUDRATE_19200
        delay_us(500);
#else
        delay_us(10);
#endif
//		temp32 = GPIOC->CRH;			//C10¸´ÓÃÍÆÍìÊä³ö
//		temp32 &= ~(0x00000000F<<8);
//		temp32 |= (0x000000009<<8);
//		GPIOC->CRH = temp32;// */
    }

    //·¢ËÍÒ»¸ö×Ö½ÚÊý¾Ý
    //EXT_UART2->TDR = m_EUART1_TxFrames[m_EUART1_TxFrm_Tail].buf[s_count2];MK8000ÐÞ¸Ä
    s_count2++;
    if(s_count2 >= m_EUART1_TxFrames[m_EUART1_TxFrm_Tail].len)		//Ò»Ö¡Êý¾Ý·¢ËÍÍê±Ï
    {
        s_count2 = 0;
        m_EUART1_TxFrm_Tail++;
        if(m_EUART1_TxFrm_Tail == EUART1_TX_FRM_SIZE)
            m_EUART1_TxFrm_Tail = 0;
        m_EUART1_TxFrm_FreeFrmLen++;
    }
    m_bEUART1CheckingSend = 0;
}		   // */

#else
/*
//¼ì²éÊÇ·ñÊý¾ÝÖ¡ÐèÒª·¢ËÍ
void UART_CheckSend(void)
{
//ÅжÏÊÇ·ñÕýÔÚCheck
if(m_bEUARTPushingFrms || m_bEUARTCheckingSend)
	return;
m_bEUARTCheckingSend = 1;

//ÅжÏDMAͨµÀÊÇ·ñÕýÔÚ¹¤×÷
if((EUART_TX_DMA_CH->CCR & 0x01) != 0)	//ͨµÀÕýÔÚ¹¤×÷
{
	if((EUART_DMA->ISR & EUART_TX_DMA_IT_TC) == (uint32_t)RESET) 	//´«ÊäδÍê³É
	{
		m_bEUARTCheckingSend = 0;
		return;
	}
	else
	{
		EUART_DMA->IFCR = EUART_TX_DMA_IT_TC;				//Çå³ý±êÖ¾£¨×¢Òâ¼Ä´æÆ÷ºÍ±êÖ¾Ãû³Æ£©
		EUART_TX_DMA_CH->CCR &= ~((uint32_t)0x01);	//½ûÓÃDMA
	}
}

//Åж϶ÓÁÐÊÇ·ñΪ¿Õ
if(m_EUART_TxFrm_Head == m_EUART_TxFrm_Tail)
{
	m_bEUARTCheckingSend = 0;
	return;
}

//¿ªÆôÒ»´ÎÊý¾Ý·¢ËÍ
EUART_TX_DMA_CH->CMAR = (uint32_t)m_EUART_TxFrames[m_EUART_TxFrm_Tail].buf;	//Òª·¢Ë͵ÄÄÚ´æµØÖ·
EUART_TX_DMA_CH->CNDTR = m_EUART_TxFrames[m_EUART_TxFrm_Tail].len;		//Òª·¢Ë͵Ä×Ö½ÚÊý
EUART_TX_DMA_CH->CCR |= 0x01;											//¿ªÆôÒ»´ÎDMA
m_EUART_TxFrm_Tail++;
if(m_EUART_TxFrm_Tail == EUART_TX_FRM_SIZE)
	m_EUART_TxFrm_Tail = 0;
m_EUART_TxFrm_FreeFrmLen++;
m_bEUARTCheckingSend = 0;
}					// */
#endif


//½«Ò»Ö¡Êý¾ÝѹÈë·¢ËͶÓÁÐ
void UART2_PushFrame(uint8_t* pdata, int32_t data_len)
{
//	uint8_t temp8 = 0;
    if(m_bEUART1PushingFrms || m_bEUART1CheckingSend)
        return;
    m_bEUART1PushingFrms = 1;

    if(data_len > EUART1_TX_FRMBUF_SIZE || m_EUART1_TxFrm_FreeFrmLen <= 0)		//Ö¡³¤¶È³¬·¶Î§»ò»º´æÒÑÂú
    {
        m_bEUART1PushingFrms = 0;
        return;
    }

    //½«Òª·¢Ë͵ÄÊý¾Ý֡ѹÈë¶ÓÁÐ
    m_EUART1_TxFrames[m_EUART1_TxFrm_Head].len = data_len;
    memcpy((uint8_t*)m_EUART1_TxFrames[m_EUART1_TxFrm_Head].buf, (uint8_t*)pdata, data_len);
    m_EUART1_TxFrm_Head++;
    if(m_EUART1_TxFrm_Head == EUART1_TX_FRM_SIZE)
        m_EUART1_TxFrm_Head = 0;
    m_EUART1_TxFrm_FreeFrmLen--;
    m_bEUART1PushingFrms = 0;
}

//½«×îÐÂÒ»Ö¡Êý¾ÝPop³ö¶ÓÁÐ
void UART2_PopFrame(void)
{
    if(m_bEUART1PushingFrms || m_bEUART1CheckingSend)
        return;
    if(m_EUART1_TxFrm_FreeFrmLen >= EUART1_TX_FRM_SIZE-1)
        return;
    m_EUART1_TxFrm_Head--;
    if(m_EUART1_TxFrm_Head < 0)
        m_EUART1_TxFrm_Head = EUART1_TX_FRM_SIZE-1;
    m_EUART1_TxFrm_FreeFrmLen++;
}
//void USART_putc(char c)
//{
//	//while(!(USART2->SR & 0x00000040));
//	//USART_SendData(USART2,c);
//	/* e.g. write a character to the USART */
//	HAL_UART_Transmit(&huart1,(uint8_t*)&c,1,1);

//	/* Loop until the end of transmission */
//	while ((USART1->ISR, UART_FLAG_TC) == RESET)	;
//}
//void USART_puts(uint8_t *s,uint8_t len)
//{
//	int i;
//	for(i=0; i<len; i++)
//	{
//		USART_putc(s[i]);
//	}
//}
//int fputc(int ch, FILE *f)
//{
//
//HAL_UART_Transmit(&huart1,(uint8_t*)&ch,1,1);
//	return (ch);
//}



/***************** UART·¢ËÍÒ»¸ö×Ö·û  **********************/
void Uart1_SendByte(  uint8_t ch )
{
    /* ·¢ËÍÒ»¸ö×Ö½ÚÊý¾Ýµ½USART2 */
    uart_send(UART_ID1, &ch, 1, NULL);
}
/*****************  ·¢ËÍÖ¸¶¨³¤¶ÈµÄ×Ö·û´® **********************/
void Uart2_SendStr_length( uint8_t *str,uint32_t strlen )
{
    unsigned int k=0;
    do
    {
        Uart1_SendByte( *(str + k) );
        k++;
    } while(k < strlen);
}

/*****************  ·¢ËÍ×Ö·û´® **********************/
void Uart2_SendString(  uint8_t *str)
{
    unsigned int k=0;

    do
    {
        Uart1_SendByte(  *(str + k) );
        k++;
    } while(*(str + k)!='\0');
}