WDFJKEY/source/user/mapp_uart1.c

//==================================================================
//
//  Filename: app_uart2.c
//  Description:
//
//------------------------------------------------------------------
//
//  version:
//  data: 18:24, 05.Seb.2019, written by dwd
//  Description:
//
//------------------------------------------------------------------
//==================================================================

/*------------------------------------------------------------------------------
 *						I N C L U D E
 *------------------------------------------------------------------------------*/
#include <string.h>
#include "stm32f0xx.h"
#include "general.h"
#include "main.h"
#include "mapp_uart1.h"
#include "mapp_pwr.h"
#include "mapp_arm.h"
#include "mapp_gpio.h"

/*------------------------------------------------------------------------------
 *						D E F I N E
 *------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------
 *						S T R U C T
 *------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------
 *						S T A T I C - V A R I A B L E S
 *------------------------------------------------------------------------------*/
 T_COM_UART1 s_tUart1Cfg = {0};   /* Com for DVD       */

/*------------------------------------------------------------------------------
 *						G L O B A L
 *------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------
 *						P R O T O T Y P E
 *------------------------------------------------------------------------------*/
static void s_Uart1VarInit(void);
static BOOL s_Uart1RxbufEmpty(void);
//static BOOL s_Uart1TxbufEmpty(void);


/*----------------------------------------------------------------------
// Function uses    : Uart1CfgInit
// Input  parameter :
// Output parameter :
// Use  Function    : for DVD communication
// Reserve  date    : 18:24, 05.Seb.2019, written by dwd
 ----------------------------------------------------------------------*/
void Uart1CfgInit(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure = {0};


    /* Init variables ------------------------------------------------*/
    s_Uart1VarInit();
    /* Enable peripheral clocks ------------------------------------------------*/
    /* Enable USART Clock */
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA,ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

	GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_1);
	GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_1);
	/* Configure pins as AF pushpull */
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2|GPIO_Pin_3;//TXRX
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
	GPIO_Init(GPIOA, &GPIO_InitStructure);

	/* USART3 configuration ------------------------------------------------------*/
	USART_InitStructure.USART_BaudRate = 115200;  
	USART_InitStructure.USART_WordLength = USART_WordLength_8b;
	USART_InitStructure.USART_StopBits = USART_StopBits_1;
	USART_InitStructure.USART_Parity = USART_Parity_No;
	USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
	USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
	USART_Init(USART1, &USART_InitStructure);

	/* Enable the USART */
	USART_Cmd(USART1, ENABLE);
	/* Enable USART3 Receive and Transmit interrupts */
	USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
	USART_ITConfig(USART1, USART_IT_TC, ENABLE);
	USART_ClearFlag(USART1, USART_FLAG_TC);
}


/*----------------------------------------------------------------------
// Function uses    : UartISRHandler
// Input  parameter :
// Output parameter :
// Use  Function    :
// Reserve  date    : 18:24, 05.Seb.2019, written by dwd
 ----------------------------------------------------------------------*/
void Uart1ISRHandler(void)
{
  	T_COM_UART1 	*pbuf;
	U08 			rdata	= 0;
	static U08		rstep	= 0;

	pbuf = &s_tUart1Cfg;
        //------------------------------------------------------------------
        // for Tx compelete interrupt routine
        // 19:50pm, 11.Oct.2012, modified by Sirius
        //------------------------------------------------------------------
        if (USART_GetFlagStatus(USART1, USART_FLAG_TC) != RESET) {
            if (pbuf->TxCtr > 0) {                      	/* See if buffer is empty                   */
        		pbuf->TxCtr--;                          	/* No, decrement character count            */
        		if (pbuf->TxDeque >= UART1_TX_BUF_SIZE) {	/* Avoid bounding offset 					*/
        			pbuf->TxDeque = 0;
        		}
            	USART_SendData(USART1, pbuf->BufTx[pbuf->TxDeque++]); /* Get character from buffer      */

            } else {
                        pbuf->TxDeque = pbuf ->TxEnque;
                }
            USART_ClearFlag(USART1, USART_FLAG_TC);

        }

	//------------------------------------------------------------------
	// for Rx not empty interrupt routine
	// 19:51pm, 11.Oct.2012, modified by Sirius
	//------------------------------------------------------------------
	if (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) != RESET) {
		rdata = USART_ReceiveData(USART1);
		
#ifdef	WDFJKEY_MAC_ADD
			switch (rstep) {
			case 0:
				if (rdata ==  '$') {
					rstep = 1;
				//	gtArm.ledtestcnt = 10;
				}
				pbuf->RxCnt = 1;
				break;
			case 1:
				if (rdata ==  HI_BYTE( gtArm.FJKeymac)) {
					rstep = 2 ;
				} else {
					rstep = 0;
				}
				break;
			case 2:
				if (rdata ==  LO_BYTE( gtArm.FJKeymac)) {
					rstep = 3;
				} else {
					rstep = 0;
				}
				break;

			case 3:
				if (rdata == '#') {
				//		gtArm.ledtestcnt = 30;
					pbuf->BufRx[pbuf->RxInPag][pbuf->RxCnt] =  '#';
					pbuf->BufRx[pbuf->RxInPag][0] =  pbuf->RxCnt;  //Lenght
					pbuf->RxInPag++;
					if (pbuf->RxInPag >= UART1_RX_PAGE) {
						pbuf->RxInPag = 0;		/* Wrap in pointer if page buffer full	*/
					}
				    rstep = 0;
				} else if (rdata ==  '$') {
					pbuf->RxCnt = 1;
				} else {
					pbuf->BufRx[pbuf->RxInPag][pbuf->RxCnt] = rdata;
					   pbuf->RxCnt++;
				}
				break;


			default:
				rstep = 0;
				break;
		}
#else				
	switch (rstep) {
			case 0:
				if (rdata ==  '$') {
					rstep = 1;
				//	gtArm.ledtestcnt = 10;
				}
				pbuf->RxCnt = 1;
				break;

			case 1:
				if (rdata == '#') {
				//		gtArm.ledtestcnt = 30;
					pbuf->BufRx[pbuf->RxInPag][pbuf->RxCnt] =  '#';
					pbuf->BufRx[pbuf->RxInPag][0] =  pbuf->RxCnt;  //Lenght
					pbuf->RxInPag++;
					if (pbuf->RxInPag >= UART1_RX_PAGE) {
						pbuf->RxInPag = 0;		/* Wrap in pointer if page buffer full	*/
					}
				    rstep = 0;
				} else if (rdata ==  '$') {
					pbuf->RxCnt = 1;
				} else {
					pbuf->BufRx[pbuf->RxInPag][pbuf->RxCnt] = rdata;
					   pbuf->RxCnt++;
				}
				break;


			default:
				rstep = 0;
				break;
		}
	#endif

		USART_ClearFlag(USART1, USART_FLAG_RXNE);
	}
}


/*----------------------------------------------------------------------
// Function name    : Uart1CfgDisable
// Input  parameter :
// Output parameter :
// Use  Function    :
// Reserve  date    : 18:24, 05.Seb.2019, written by dwd
 ----------------------------------------------------------------------*/
void Uart1CfgDisable(void)
{
	/* Enable the USART */
    USART_ITConfig(USART1,USART_IT_RXNE,DISABLE);
    USART_ITConfig(USART1,USART_IT_TC,DISABLE);
    USART_ClearFlag(USART1, USART_FLAG_TC);
     USART_Cmd(USART1, DISABLE);
}


/*------------------------------------------------------------------------------
 - Name: Uart1GetChar
 - DESCRIPTION: - To obtain a character from the communications channel. The function
                  will wait for a character to be received on the serial channel
                  or until the function times out.
 -
 - Input: 'to'  is the amount of time (in clock ticks) that the calling function is
          willing to wait for a character to arrive. If you specify a timeout of 0,
          the function will wait forever for a character to arrive.
 - Output:
 -
 - modification history
 - --------------------
 - 18:24, 05.Seb.2019, written by dwd
 * --------------------
 -----------------------------------------------------------------------------*/
void Uart1GetChar(U08 *rbuf ,U16 to, U08 *err)
{
   U08          i,len;
    T_COM_UART1  *pbuf;

    pbuf = &s_tUart1Cfg;                            /* Obtain pointer to communications channel */
    if (!s_Uart1RxbufEmpty()) {

    //*rbuf++ = pbuf->BufRx[pbuf->RxOutPag][0];   /* Copy data type */
    len     = pbuf->BufRx[pbuf->RxOutPag][0];
		 if (len > (UART1_RX_BUF_SIZE-2) ) {
		    len  = UART1_RX_BUF_SIZE -2;
	        }
                *rbuf++ = len;                              /* Copy data length */
                len ++;
                for (i = 0; i < len; i++) {                 /* Copy data to buffer */
                   *rbuf++ = pbuf->BufRx[pbuf->RxOutPag][i + 1];
                  }

        pbuf->RxOutPag++;
        if (pbuf->RxOutPag >= UART1_RX_PAGE) {      /* Ready for next page */
            pbuf->RxOutPag = 0;
        }
        *err = COM_NO_ERR;
    } else {                                        /* See if characters received within timeout*/
        *err = COM_RX_EMPTY;                        /* No, return error code                    */
    }
}


U08 Uart1PutChar(U08 *c, U08 len)
{
	BOOL         newTras;
    T_COM_UART1  *pbuf;

    pbuf = &s_tUart1Cfg;                            /* Obtain pointer to communications channel */
	if (len == 0) {
		return (COM_TX_EMPTY);
	}
	//if (len > s_Uart1TxbufLeft()) {				  	/* Txbuffer left is not enough for this transmit */
	//	return (COM_TX_FULL);
//	}

	newTras = s_Uart1RxbufEmpty();

    while (len--) {
        pbuf->TxCtr++;                            	/* No, increment character count            */
		if (pbuf->TxEnque >= UART1_TX_BUF_SIZE) {	/* Avoid bounding offset 					*/
			pbuf->TxEnque = 0;
		}
        pbuf->BufTx[pbuf->TxEnque++] = *c++;        /* Put character into buffer                */
    }

    /* Tx first character to wake up Usart new transmit process */
       if (newTras) {
            if (pbuf->TxCtr){
         	pbuf->TxCtr--;                              /* No, decrement character count            */
               }
        if (pbuf->TxDeque >= UART1_TX_BUF_SIZE) {	/* Avoid bounding offset 					*/
			pbuf->TxDeque = 0;
		}
        USART_SendData(USART1, pbuf->BufTx[pbuf->TxDeque++]); /* Get character from buffer  */
    	USART_ClearFlag(USART1, USART_FLAG_ORE);     /* Clear TC flag in status register         */
	}
    return (COM_NO_ERR);
}

/*------------------------------------------------------------------------------
 - Name: Uart1VarInit
 - DESCRIPTION: - Initialize the ring buffer for COMM.
	              Must call this function before calling any other functions.
 -
 - Input:
 - Output:
 -
 - modification history
 - --------------------
 - 18:24, 05.Seb.2019, written by dwd
 * --------------------
 -----------------------------------------------------------------------------*/
static void s_Uart1VarInit(void)
{
    T_COM_UART1 *pbuf;

    pbuf = &s_tUart1Cfg;        /* Obtain pointer to communications channel */
    pbuf->RxInPag   = 0;               /* Initialize the ring buffer for COMM port */
    pbuf->RxOutPag  = 0;
    pbuf->RxLen     = 0;
    pbuf->RxCnt     = 0;
}

/*=======================================================
 - Name: s_Uart1RxbufEmpty
 - DESCRIPTION: - Judge whether rxbuf data valid.
 -
 - Input:
 - Output:
 -
 - modification history
 - --------------------
 - 18:24, 05.Seb.2019, written by dwd
 * --------------------
 =======================================================*/
static BOOL s_Uart1RxbufEmpty(void)
{
    return (BOOL)(s_tUart1Cfg.RxInPag == s_tUart1Cfg.RxOutPag);
}



/*------------------------------- E O F ----------------------------------------*/