/** @file	Sermem.c* @brief	串口部分內存管理文件, 如有問題請聯系作者* @Author	Mars.zhu@hotmail.com 2007-9-26 19:13* @Modify*/#include "option.h"#include "tcuart.h"#include "Sermem.h"/** 定義每個串口對應的緩沖區*/static	uint8	U0_TxBuf[U0_TXBUF_LEN];static	uint8	U0_RxBuf[U0_RXBUF_LEN];static	uint8	U1_TxBuf[U1_TXBUF_LEN];static	uint8	U1_RxBuf[U1_RXBUF_LEN];/** 把收發各個緩沖區程度定義在一個數組中*/uint16	U_TXBUF_LEN[] = {	U0_TXBUF_LEN, U1_TXBUF_LEN,};uint16	U_RXBUF_LEN[] = {	U0_RXBUF_LEN, U1_RXBUF_LEN,};/** 定義串口緩沖*/static S_UartBuf_t	Uart_Buf[UART_CNT];/** @func UartInitFifo* @brief 初始化串口對應緩沖區*/voidUartInitBuf(uint8 fd){	switch (fd) {	case 0: {		Uart_Buf[0].RecvBufPtr	= U0_RxBuf;		Uart_Buf[0].Recv_in		= U0_RxBuf;		Uart_Buf[0].Recv_out	= U0_RxBuf;		Uart_Buf[0].Recv_BufFull= 0;		Uart_Buf[0].SendBufPtr	= U0_TxBuf;		Uart_Buf[0].Send_in		= U0_TxBuf;		Uart_Buf[0].Send_out	= U0_TxBuf;		Uart_Buf[0].Send_BufFull= 0;		Uart_Buf[0].Tx_Idle		= 1;		break;	}	case 1: {		Uart_Buf[1].RecvBufPtr	= U1_RxBuf;		Uart_Buf[1].Recv_in		= U1_RxBuf;		Uart_Buf[1].Recv_out	= U1_RxBuf;		Uart_Buf[1].Recv_BufFull= 0;		Uart_Buf[1].SendBufPtr	= U1_TxBuf;		Uart_Buf[1].Send_in		= U1_TxBuf;		Uart_Buf[1].Send_out	= U1_TxBuf;		Uart_Buf[1].Send_BufFull= 0;		Uart_Buf[1].Tx_Idle		= 1;		break;	}	default:		break;	}}/** @func UartPutc* @brief 串口寫數據到緩沖區*		 底層接口函數* @Retval	D_OK	 成功*			D_ERR	 無數據*/D_ResultUartPutc(uint8 fd, uint8 dat){	uint8	*ptr;	/** 接收緩沖區已滿*/	if (Uart_Buf[fd].Recv_BufFull) {		return D_ERR;	}	ptr = Uart_Buf[fd].Recv_in; ptr++;	if (ptr == Uart_Buf[fd].RecvBufPtr+U_RXBUF_LEN[fd]) {		ptr =  Uart_Buf[fd].RecvBufPtr;	}	if (ptr == Uart_Buf[fd].Recv_out) {		Uart_Buf[fd].Recv_BufFull = 1;		return D_ERR;	}	*Uart_Buf[fd].Recv_in	= dat;	Uart_Buf[fd].Recv_in	= ptr;	return D_OK;}/** @func UartGetc* @brief 串口從緩沖區讀取數據*		 底層接口函數* @Retval	D_OK	 成功*			D_ERR	 無數據*/D_ResultUartGetc(uint8 fd, uint8 *dat){	/** 發送緩沖區無數據*/	if (Uart_Buf[fd].Send_out == Uart_Buf[fd].Send_in) {		Uart_Buf[fd].Tx_Idle = 1;		return D_ERR;	}	*dat = *(Uart_Buf[fd].Send_out++);	if (Uart_Buf[fd].Send_out == Uart_Buf[fd].SendBufPtr+U_TXBUF_LEN[fd]) {		Uart_Buf[fd].Send_out =  Uart_Buf[fd].SendBufPtr;	}	/** 處理標志位*/	if (Uart_Buf[fd].Send_BufFull) {		Uart_Buf[fd].Send_BufFull = 0;	}	return 0;}/** @func UsrPutc* @brief 用戶寫數據到緩沖區*		 API函數* @Retval	D_OK	 成功*			D_ERR	 BUFF已滿*/D_ResultUsrPutc(uint8 fd, uint8 dat){	uint8	*ptr;	if (Uart_Buf[fd].Send_BufFull) {		return D_ERR;	}	ptr = Uart_Buf[fd].Send_in; ptr++;	if (ptr == Uart_Buf[fd].SendBufPtr+U_TXBUF_LEN[fd])		ptr =  Uart_Buf[fd].SendBufPtr;	if (ptr == Uart_Buf[fd].Send_out) {		Uart_Buf[fd].Send_BufFull = 1;		UartFlush(fd);		return D_ERR;	}	*Uart_Buf[fd].Send_in	= dat;	Uart_Buf[fd].Send_in	= ptr;	return D_OK;}/** @func UsrGetc* @brief 用戶寫數據到緩沖區*		 API函數* @Retval	D_OK	 成功*			D_ERR	 BUFF已滿*/D_ResultUsrGetc(uint8 fd, uint8 *dat){	/** 接收緩沖區無數據*/	if (Uart_Buf[fd].Recv_out == Uart_Buf[fd].Recv_in) {		return D_ERR;	}	*dat = *(Uart_Buf[fd].Recv_out++);	if (Uart_Buf[fd].Recv_out == Uart_Buf[fd].RecvBufPtr+U_RXBUF_LEN[fd]) {		Uart_Buf[fd].Recv_out =  Uart_Buf[fd].RecvBufPtr;	}	/** 處理標志位*/	if (Uart_Buf[fd].Recv_BufFull) {		Uart_Buf[fd].Recv_BufFull = 0;	}	return D_OK;}/** @func UsrGetc* @brief 開始發送緩沖區中數據*/D_ResultUartFlush(uint8 fd){	switch (fd) {	case 0:	case 1: {		if (Uart_Buf[fd].Tx_Idle == 1) {			Uart_Buf[fd].Tx_Idle = 0;			__UART_Flush(fd);		}		return D_OK;	}	default:		break;	}	return D_ERR;}