/*
 ******************************************************************************
 *
 * @file     uart.c
 * @brief    uart module
 *                 
 *
 * @version  1.0
 * @date     2022/12/14   15:00:40
 * @author   Alex Xu
 *
 * Copyright (c) 2013-2099,Tkplusemi Technology Co.,Ltd.
 * All Rights Reserved
 *
 * History:
 * Revision          Date           Author            Desc
 * 1.0.0            2022/12/14      Alex          build this file
 ******************************************************************************/
 /*_____ I N C L U D E S ____________________________________________________*/
#include "uart.h"
#include "system.h"
#include "vox_module.h"


#if UART0_ENABLE

 /******************************************************************************\
						   Macro definitions
 \******************************************************************************/
#define NONE_PARITY     0       //无校验
#define ODD_PARITY      1       //奇校验
#define EVEN_PARITY     2       //偶校验
#define MARK_PARITY     3       //标记校验
#define SPACE_PARITY    4       //空白校验

#define PARITYBIT EVEN_PARITY   //定义校验位

 /******************************************************************************\
							  Variables definitions
 \******************************************************************************/
 
bit busy0;

#ifdef VOX_RX
idata uint8_t RX0_Buffer[COM0_Data_Lenth] = 0;	//接收缓冲
bit Uart0_RX_Finish_Flag = 0;	
#endif

#endif

#ifdef _DEBUG_ALL
char putchar(char c)  
{

  while(!TI0);
  TI0 = 0;
  return (S0BUF = c);
  
 // Uart0SendData(c);
 // return(c);
}
#endif

#if UART0_ENABLE

/*
 *******************************************************************************
 *             void UART0_Init(void)
 *
 * Description : UART0 Initialization  UART0用于debug、打印、透传功能
 *
 * Arguments   : NONE

 * Returns     : NONE

 * Notes       : NONE
 *
 *******************************************************************************
 */
 #if 0
void UART0_Init(void)
{
    SFRADDR = MFP_CTL0;
	SFRDATA &= ~0x0C;
    SFRDATA |= 0x04;    //P01 as UART's TX
    
    BD = 1;              //Select additional Baudrate generator
    PCON |= 0x80;        //Baudrate double enable
    
    //baudrate set
    S0RELH = HIBYTE(S0REL_VALUE);
    S0RELL = LOBYTE(S0REL_VALUE);//s0rel=1023, baudrate = fclk/32 = 187.5k

    S0CON = 0xD0;        //SCON: MODE 3, 9-bit UART, RI enable, EVEN Parity
	 
    TI0 = 1;  
    RI0 = 1;
	ES0 = 1;            //Enable UART0 IRQ          
}
#endif
/*
 *******************************************************************************
 *             void Uart0SendData(uint8_t Txdata)
 *
 * Description : UART0 Send Data 
 *
 * Arguments   : NONE

 * Returns     : NONE

 * Notes       : NONE
 *
 *******************************************************************************
 */
 #if 0
void Uart0SendData(uint8_t Txdata)
{
	while(busy0);
	ACC = Txdata;
    if (P)                      //根据P来设置校验位
    {
#if (PARITYBIT == ODD_PARITY)
        TB80 = 0;                //设置校验位为0
#elif (PARITYBIT == EVEN_PARITY)
        TB80 = 1;                //设置校验位为1
#endif
    }
    else
    {
#if (PARITYBIT == ODD_PARITY)
        TB80 = 1;                //设置校验位为1
#elif (PARITYBIT == EVEN_PARITY)
        TB80 = 0;                //设置校验位为0
#endif
    }	
	busy0 = 1;
	S0BUF = ACC;
}
#endif

/*
 *******************************************************************************
 *             void Uart0SendPacket(uint8_t Length,uint8_t *TransBuf)
 *
 * Description : UART0 Send Packet 
 *
 * Arguments   : NONE

 * Returns     : NONE

 * Notes       : NONE
 *
 *******************************************************************************
 */
#ifdef VOX_TX

void Uart0SendPacket(uint8_t Length,uint8_t *TransBuf)
{
	uint8_t i = 0;
	for(i=0;i<Length;i++)
	{
		//Uart0SendData(*TransBuf++);		

		while(busy0);
		ACC = *TransBuf++;
		busy0 = 1;
		S0BUF = ACC;
	}
}
#endif

#endif

#if UART0_ENABLE

//uint8_t RX0DataLen = 0;
//uint8_t Rx0Status = 0;	
//uint8_t RX0_Cnt = 0;
#define Vox_Comm_Data_Len 5
/*uart0中断处理函数*/
void uart0_Interrupt(void) interrupt Interrupt_Vector_RI_TI
{
	static uint8_t Rx0Status;	
	static uint8_t RX0_Cnt;
	static uint8_t RX0DataLen;
	
	/*处理UART0发送中断*/
	if(TI0)
	{
		TI0 = 0;
		busy0 = 0;
	}
	
	/*处理UART0接收中断*/
	if(RI0)
	{	
		RI0 = 0;
#if 0		
		RX0_Buffer[RX0_Cnt] = S0BUF; 

		RX0_Cnt++;
		
		if( RX0_Cnt == Vox_Comm_Data_Len )
		{
			RX0DataLen = RX0_Buffer[4] + 5;
		}
		
		if( RX0DataLen == RX0_Cnt )
		{
			Uart0_RX_Finish_Flag = 1;	
			RX0_Cnt = 0;
		}

#else		

#ifdef VOX_RX		

#ifdef QIANCHENG    //岍丞

		switch(Rx0Status)
		{
			case 0:
				if(S0BUF == 0xA5)  
				{		
					Rx0Status = 1;	
					
					RX0_Cnt = 0; 	
					
					RX0_Buffer[RX0_Cnt] = S0BUF;
					
					RX0_Cnt++;										
				}
				else
				{
					Rx0Status = 0;	

					RX0_Cnt = 0; 	
				}				
			break;
				
			case 1:
				RX0_Buffer[RX0_Cnt] = S0BUF; 
				
				RX0_Buffer[RX0_Cnt] = S0BUF; 
				
				RX0_Cnt++;
			
				if( RX0_Cnt == Vox_Comm_Data_Len )
				{
					RX0DataLen = RX0_Buffer[4] + 5;		//获取数据长度
				}	
				
				if( (RX0DataLen == RX0_Cnt) || (RX0_Cnt > COM0_Data_Lenth) )	  //当接收到的data个数等于RX0DataLen，这结束本次传输。
				{				
					RX0_Cnt = 0;
					Rx0Status = 0;	
					Uart0_RX_Finish_Flag = 1;				
				}
							
		}

#elif ZHONGKELANXUN		//中科蓝讯

	switch(Rx0Status)
	{
		case 0:
			if( S0BUF == (BOXHEADER >> 8) )  
			{		
				Rx0Status = 1;	
				
				RX0_Cnt = 0;	
				
				RX0_Buffer[RX0_Cnt] = S0BUF;
				
				RX0_Cnt++;										
			}
			else
			{
				Rx0Status = 0;	

				RX0_Cnt = 0;	
			}				
		break;

		case 1:
			if(S0BUF == BOXHEADER)  
			{		
				Rx0Status = 2;	
				
				RX0_Buffer[RX0_Cnt] = S0BUF;
				
				RX0_Cnt++;									
			}
			else
			{
				Rx0Status = 0;	

				RX0_Cnt = 0; 	
			}			
		break;	
		case 1:
				RX0_Buffer[RX0_Cnt] = S0BUF; 
				
				if(RX0DataLen == RX0_Cnt - 6)	
				{				
					RX0_Cnt = 0;
					Rx0Status = 0;					
					Uart0_RX_Finish_Flag = 1;				
				}
				else
				{					
					RX0_Cnt++;	

					if(RX0_Cnt == 5)
					{
						RX0DataLen = RX0_Buffer[4];		  //获取数据长度 length,length不包括Checksum
					}
				}						
	}

#endif

#endif
	}
}

#endif