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

//Êý¾Ý·¢ËͶÓÁбäÁ¿
EUART_Frame m_EUART_TxFrames[EUART_TX_FRM_SIZE];	//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐ
volatile int8_t m_EUART_TxFrm_Tail = 0;					//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐβָÕë
volatile int8_t m_EUART_TxFrm_Head = 0;					//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐÍ·Ö¸Õë
volatile int8_t m_EUART_TxFrm_FreeFrmLen = 0;			//Êý¾Ý·¢ËÍÖ¡¶ÓÁÐÊ£ÓàÖ¡Êý
//DMAÊý¾Ý½ÓÊÕ»º´æ
uint8_t m_EUART_DMA_RXBuf[EUART_RX_BUF_SIZE];			//DMAÊý¾Ý½ÓÊÕ»º´æ
volatile int32_t m_EUART_DMA_RXPtr = 0;					//µ±Ç°Êý¾ÝµØÖ·
//int16_t DMA_rxtemp = 0,DMA_rxtemp2 = 0;															//µ±Ç°Êý¾ÝµØÖ·»º´æ
//uint16_t datadelaycount = 0;													//Ê£Óà1λÊý¾ÝÑÓʱµÈ´ý´¦Àí
//±êÖ¾±äÁ¿
volatile uint8_t m_bEUARTPushingFrms = 0;				//ÕýÔÚÍù·¢ËͶÓÁдæÊý¾Ý
volatile uint8_t m_bEUARTCheckingSend = 0;				//ÕýÔÚÈ·ÈÏÊý¾Ý·¢ËÍ
volatile uint8_t m_bEUARTCheckingRec = 0;				//ÕýÔÚÈ·ÈϽÓÊÕÊý¾Ý
volatile uint8_t m_bEUARTTxEn = 0;						//ʹÄÜ·¢ËÍ

void (*Usart1ParseDataCallback)(uint8_t);
void Usart1InitVariables(void)
{
    m_EUART_TxFrm_FreeFrmLen = EUART_TX_FRM_SIZE-1;
}





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

uint16_t t3;
uint32_t cndtr=0;
void UART_CheckReceive(void)
{
    int32_t DMACnt = 0;
    int32_t MaxDataLen = EUART_RX_BUF_SIZE;
    cndtr=get_uart1_dma_cndtr();
    //ȱÉÙcheck±£»¤
    //Èç¹ûÕýÔÚÍù·¢ËͶÓÁÐÖÐÌí¼ÓÊý¾Ý£¬Í˳ö
    if(m_bEUARTPushingFrms)
        return;
    //ÅжÏÊÇ·ñÕýÔÚCheck
    if(m_bEUARTCheckingRec)
        return;
    m_bEUARTCheckingRec = 1;
    if(cndtr== 0)
    {
        m_bEUARTCheckingRec = 0;
        return;
    }
    DMACnt = EUART_RX_BUF_SIZE - cndtr;
    while( m_EUART_DMA_RXPtr != DMACnt && MaxDataLen > 0)
    {
        Usart1ParseDataCallback(m_EUART_DMA_RXBuf[m_EUART_DMA_RXPtr]);
        //waitusart_timer = tag_frequency*USART_KEEPWAKE_TIME;
        m_EUART_DMA_RXPtr++;
        if( m_EUART_DMA_RXPtr >= EUART_RX_BUF_SIZE )
        {
            m_EUART_DMA_RXPtr = 0;
        }
        DMACnt = EUART_RX_BUF_SIZE - cndtr;
        MaxDataLen--;
    }
    m_bEUARTCheckingRec = 0;
}



#ifndef EXUART_USE_TXDMA
//²éѯ·½Ê½·¢ËÍÊý¾Ý
void UART_CheckSend(void)
{

//	static int32_t s_count = 0;
////	uint32_t temp32 = 0;

    if(m_bEUARTPushingFrms || m_bEUARTCheckingSend)
        return;
    m_bEUARTCheckingSend = 1;

//	//Åж϶ÓÁÐÊÇ·ñΪ¿ÕÒÔ¼°DMAÊÇ·ñ¿ÕÏÐ
//	//if ((EXT_UART->ISR & UART_FLAG_TXE) == (uint16_t)RESET)	//Éϴη¢ËÍδÍê³É//MK8000ÐÞ¸Ä
//	{
//		m_bEUARTCheckingSend = 0;
//		return;
//	}
//
//	if(m_EUART_TxFrm_Head == m_EUART_TxFrm_Tail)					//¶ÓÁÐΪ¿Õ
//	{
//		//if((EXT_UART->ISR & UART_FLAG_TC) != (uint16_t)RESET)	 	//·¢ËÍÍê±Ï//MK8000ÐÞ¸Ä
//		{
//			if(m_bEUARTTxEn)
//			{
//				m_bEUARTTxEn = 0;
//				t3++;
////				temp32 = GPIOC->CRH;			//C10Ðü¿ÕÊäÈë
////				temp32 &= ~(0x00000000F<<8);
////				temp32 |= (0x000000004<<8);
////				GPIOC->CRH = temp32;// */
//			}
//		}
//		m_bEUARTCheckingSend = 0;
//		return;
//	}
//
//	if(!m_bEUARTTxEn)
//	{
//		m_bEUARTTxEn = 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_UART->TDR = m_EUART_TxFrames[m_EUART_TxFrm_Tail].buf[s_count];//MK8000ÐÞ¸Ä
//	s_count++;
//	if(s_count >= m_EUART_TxFrames[m_EUART_TxFrm_Tail].len)		//Ò»Ö¡Êý¾Ý·¢ËÍÍê±Ï
//	{
//		s_count = 0;
//		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;
//



}

#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 UART_PushFrame(uint8_t* pdata, int32_t data_len)
{
//	uint8_t temp8 = 0;
    if(m_bEUARTPushingFrms || m_bEUARTCheckingSend)
        return;
    m_bEUARTPushingFrms = 1;

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

    //½«Òª·¢Ë͵ÄÊý¾Ý֡ѹÈë¶ÓÁÐ
    m_EUART_TxFrames[m_EUART_TxFrm_Head].len = data_len;
    memcpy((uint8_t*)m_EUART_TxFrames[m_EUART_TxFrm_Head].buf, (uint8_t*)pdata, data_len);
    m_EUART_TxFrm_Head++;
    if(m_EUART_TxFrm_Head == EUART_TX_FRM_SIZE)
        m_EUART_TxFrm_Head = 0;
    m_EUART_TxFrm_FreeFrmLen--;
    m_bEUARTPushingFrms = 0;
}

//½«×îÐÂÒ»Ö¡Êý¾ÝPop³ö¶ÓÁÐ
void UART_PopFrame(void)
{
    if(m_bEUARTPushingFrms || m_bEUARTCheckingSend)
        return;
    if(m_EUART_TxFrm_FreeFrmLen >= EUART_TX_FRM_SIZE-1)
        return;
    m_EUART_TxFrm_Head--;
    if(m_EUART_TxFrm_Head < 0)
        m_EUART_TxFrm_Head = EUART_TX_FRM_SIZE-1;
    m_EUART_TxFrm_FreeFrmLen++;
}
void USART_putc(uint8_t c)
{
    //while(!(USART2->SR & 0x00000040));
    //USART_SendData(USART2,c);
    /* e.g. write a character to the USART */
    uart_send(UART_ID1, &c, 1, NULL);

    /* Loop until the end of transmission */
    //while ((USART1->ISR, UART_FLAG_TC) == RESET)	;MK8000ÐÞ¸Ä
}
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 Uart2_SendByte(  uint8_t ch )
//{
//	/* ·¢ËÍÒ»¸ö×Ö½ÚÊý¾Ýµ½USART1 */
//    HAL_UART_Transmit(&huart2, (uint8_t *)&ch, 1, 0x7FFF);
//}
///*****************  ·¢ËÍÖ¸¶¨³¤¶ÈµÄ×Ö·û´® **********************/
//void Uart2_SendStr_length( uint8_t *str,uint32_t strlen )
//{
//	  unsigned int k=0;
//    do
//    {
//        Uart2_SendByte( *(str + k) );
//        k++;
//    } while(k < strlen);
//}

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

//    do
//    {
//        Uart2_SendByte(  *(str + k) );
//        k++;
//    } while(*(str + k)!='\0');
//}