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RT_CAN.cpp
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250 lines (222 loc) · 6.85 KB
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#include<stdafx.h>
#include "RT_CAN.h"
RT_CAN::RT_CAN(void)
{
m_hConfigEvnet = CreateEvent(NULL, FALSE, FALSE, NULL);
m_hRecvMsgEvnet = CreateEvent(NULL, FALSE, FALSE, NULL);
}
RT_CAN::~RT_CAN(void)
{
if(m_hConfigEvnet != INVALID_HANDLE_VALUE)
{
CloseHandle(m_hConfigEvnet);
m_hConfigEvnet = INVALID_HANDLE_VALUE;
}
if(m_hRecvMsgEvnet != INVALID_HANDLE_VALUE)
{
CloseHandle(m_hRecvMsgEvnet);
m_hRecvMsgEvnet = INVALID_HANDLE_VALUE;
}
}
/*******************************************************************************
* Function Name : OnRecvPackage
* Description : 在串口的接收线程内被调用，表示接收到一个完整的CAN数据包
* Input : byBuf: 接收到的数据
dwLen: 接收到的数据长度
* Output : None
* Return : None
*******************************************************************************/
void RT_CAN::OnRecvPackage(const BYTE * byBuf, DWORD dwLen)
{
CAN_msg* msg;
msg = (CAN_msg *)byBuf;
if(dwLen == sizeof(CAN_msg))
{
if (msg->ch == CAN_CONFIG_CHANNEL)
{
m_CANConfigMsg = *msg;
SetEvent(m_hConfigEvnet);
Sleep(1);
}
else
{
m_CANRecvMsg = *msg;
SetEvent(m_hRecvMsgEvnet);
RT_COM::OnRecvPackage(byBuf, dwLen);
}
}
}
/*******************************************************************************
* Function Name : SendConfigData
* Description : 发送配置信息
* Input : dwID: 数据包ID
pBufData: 数据
dwBufLen: 数据长度
dwTimeout: 超时时间
* Output : None
* Return : 错误代码
*******************************************************************************/
CAN_ERROR RT_CAN::SendConfigData(DWORD dwID, void *pBufData, DWORD dwBufLen, DWORD dwTimeout)
{
CAN_msg msg;
if((pBufData == NULL) || (dwBufLen > 8))
return CAN_ERR_PARAM;
msg.id = dwID;
msg.ch = CAN_CONFIG_CHANNEL;
memcpy(msg.data, pBufData, dwBufLen);
msg.format = EXTENDED_FORMAT;
msg.len = (BYTE)dwBufLen;
msg.type = DATA_FRAME;
ResetEvent(m_hConfigEvnet);
if(WritePackage((BYTE*)&msg, sizeof(msg)))
{
if(WAIT_TIMEOUT == WaitForSingleObject(m_hConfigEvnet,dwTimeout))
return CAN_ERR_ACK;
else
return CAN_OK;
}
else
{
return CAN_ERR_TRANS;
}
}
/*******************************************************************************
* Function Name : RequestConfigData
* Description : 获取配置信息
* Input : dwID: 数据包ID
dwTimeout: 超时时间
* Output : None
* Return : 错误代码
*******************************************************************************/
CAN_ERROR RT_CAN::RequestConfigData(DWORD dwID, DWORD dwTimeout)
{
CAN_msg msg;
msg.id = dwID;
msg.ch = CAN_CONFIG_CHANNEL;
msg.format = EXTENDED_FORMAT;
msg.type = REMOTE_FRAME;
msg.len = 8;
ResetEvent(m_hConfigEvnet);
if(!WritePackage((BYTE *)&msg, sizeof(CAN_msg)))
return CAN_ERR_TRANS;
//等待收到数据
if(WAIT_TIMEOUT == WaitForSingleObject(m_hConfigEvnet,dwTimeout))
return CAN_ERR_ACK;
return CAN_OK;
}
/*******************************************************************************
* Function Name : GetConfigDataLen
* Description : 获取配置数据包数据域长度
* Input : dwID: 数据包ID
* Output : None
* Return : 配置用数据包数据域长度
*******************************************************************************/
DWORD RT_CAN::GetConfigDataLen(DWORD dwID)
{
DWORD RequesetBufLen = 0;
switch(dwID)
{
case CAN_ART_ID:
case CAN_ABOM_ID:
RequesetBufLen = sizeof(BYTE);
break;
case CAN_BAUD_ID:
case CAN_INIT_FLASH_ID:
RequesetBufLen = sizeof(DWORD);
break;
default:
if((dwID >= CAN_FILTER_BASE_ID) && (dwID <= (CAN_FILTER_BASE_ID + 13))) //Fileter
RequesetBufLen = (sizeof(DWORD) * 2);
break;
}
return RequesetBufLen;
}
/*******************************************************************************
* Function Name : GetConfigValue
* Description : 获取配置数据信息
* Input : dwID: 数据包ID
pValueBuf: 数据
pdwLen: 数据长度
dwTimeOut: 超时时间
* Output : None
* Return : 错误信息
*******************************************************************************/
CAN_ERROR RT_CAN::GetConfigValue(DWORD dwID, void *pValueBuf, DWORD *pdwLen, DWORD dwTimeOut)
{
CAN_ERROR CAN_err = CAN_ERR_PARAM;
DWORD RequesetBufLen = GetConfigDataLen(dwID);
if(pValueBuf == NULL)
return CAN_ERR_PARAM;
if((*pdwLen >= RequesetBufLen) && RequesetBufLen)
{
*pdwLen = RequesetBufLen;
CAN_err = RequestConfigData(dwID, dwTimeOut);
if(CAN_err == CAN_OK)
{
if(m_CANConfigMsg.id == dwID)
{
memcpy(pValueBuf, m_CANConfigMsg.data, RequesetBufLen);
CAN_err = CAN_OK;
}
else
CAN_err = CAN_ERR_TRANS;
}
}
return CAN_err;
}
/*******************************************************************************
* Function Name : SetConfigValue
* Description : 发送配置数据信息
* Input : dwID: 数据包ID
pValueBuf: 数据
pdwLen: 数据长度
dwTimeOut: 超时时间
* Output : None
* Return : 错误信息
*******************************************************************************/
CAN_ERROR RT_CAN::SetConfigValue(DWORD dwID, void *pValueBuf, DWORD *pdwLen, DWORD dwTimeOut)
{
DWORD RequesetBufLen = GetConfigDataLen(dwID);
if(pValueBuf == NULL)
return CAN_ERR_PARAM;
if((*pdwLen >= RequesetBufLen) && RequesetBufLen)
{
*pdwLen = RequesetBufLen;
return SendConfigData(dwID, pValueBuf, RequesetBufLen, dwTimeOut);
}
return CAN_ERR_PARAM;
}
/*******************************************************************************
* Function Name : SendCANMessage
* Description : 发送CAN消息
* Input : pMsg: CAN消息数据包
dwTimeOut: 超时时间
* Output : None
* Return : 错误信息
*******************************************************************************/
CAN_ERROR RT_CAN::SendCANMessage(CAN_msg *pMsg, DWORD dwTimeout)
{
if(pMsg == NULL)
return CAN_ERR_PARAM;
if(pMsg->ch == CAN_CONFIG_CHANNEL)
return CAN_ERR_CHANNEL;
if(WritePackage((BYTE *)pMsg, sizeof(CAN_msg), dwTimeout) == 0)
return CAN_ERR_TRANS;
return CAN_OK;
}
/*******************************************************************************
* Function Name : RecvCANMessage
* Description : 接收CAN消息
* Input : dwTimeOut: 超时时间
* Output : pMsg: CAN消息数据包
* Return : 错误信息
*******************************************************************************/
CAN_ERROR RT_CAN::RecvCANMessage(CAN_msg *pMsg, DWORD dwTimeout)
{
if(pMsg == NULL)
return CAN_ERR_PARAM;
if(WAIT_TIMEOUT == WaitForSingleObject(m_hRecvMsgEvnet, dwTimeout))
return CAN_ERR_TIMEOUT;
*pMsg = m_CANRecvMsg;
return CAN_OK;
}