/**
* \brief This function will connect the tool with hardware. This will
* establish the data link between the application and hardware.
* \param[in] bConnect TRUE to Connect, FALSE to Disconnect
* \return Returns defERR_OK if successful otherwise corresponding Error code.
* \authors Arunkumar Karri
* \date 07.10.2011 Created
*/
static int nConnect(BOOL bConnect)
{
int nReturn = -1;
XLstatus xlStatus;
if (!sg_bIsConnected && bConnect) // Disconnected and to be connected
{
/* Set the permission mask for all channel access */
g_xlPermissionMask = g_xlChannelMask;
xlStatus = xlOpenPort(&g_xlPortHandle[0], g_AppName, g_xlChannelMask, &g_xlPermissionMask,
RX_QUEUE_SIZE, XL_INTERFACE_VERSION, XL_BUS_TYPE_LIN);
if (XL_SUCCESS == xlStatus)
{
//Calculate connected Timestamp
QueryPerformanceCounter(&sg_QueryTickCount);
// Get frequency of the performance counter
QueryPerformanceFrequency(&sg_lnFrequency);
// Convert it to time stamp with the granularity of hundreds of microsecond
//if (sg_QueryTickCount.QuadPart * 10000 > sg_QueryTickCount.QuadPart)
if ((sg_QueryTickCount.QuadPart * 10000) > sg_lnFrequency.QuadPart)
{
sg_TimeStamp = (sg_QueryTickCount.QuadPart * 10000) / sg_lnFrequency.QuadPart;
}
else
{
sg_TimeStamp = (sg_QueryTickCount.QuadPart / sg_lnFrequency.QuadPart) * 10000;
}
/* Transit into 'CREATE TIME MAP' state */
sg_byCurrState = CREATE_MAP_TIMESTAMP;
vMapDeviceChannelIndex();
sg_bIsConnected = bConnect;
xlFlushReceiveQueue(g_xlPortHandle[0]);
/* Set LIN channel Params */
nReturn = nSetBaudRate();
}
else
{
return S_FALSE;
}
}
else if (sg_bIsConnected && !bConnect) // Connected & to be disconnected
{
sg_bIsConnected = bConnect;
Sleep(0); // Let other threads run for once
nReturn = nDisconnectFromDriver();
}
else
{
nReturn = defERR_OK;
}
if ( sg_bIsConnected )
{
InitializeCriticalSection(&sg_CritSectForWrite);
}
else
{
DeleteCriticalSection(&sg_CritSectForWrite);
}
return nReturn;
}
/** * \brief This function will connect the tool with hardware. This will * establish the data link between the application and hardware. * \param[in] bConnect TRUE to Connect, FALSE to Disconnect * \return Returns defERR_OK if successful otherwise corresponding Error code. * \authors [email protected] * \date 05.29.2015 Created */ static int nConnect(BOOL bConnect) { int nReturn = -1; LinStatus xlStatus; LinHandle hnd; if (!sg_bIsConnected && bConnect) // Disconnected and to be connected { /* Set the permission mask for all channel access */ for( UINT i = 0; i < sg_nNoOfChannels; i++) { //open LIN channel hnd = linOpenChannel(sg_aodChannels[i].m_nChannel,sg_aodChannels[i].m_unLINMode); if (hnd >= 0) { sg_aodChannels[i].m_hnd = hnd; } else { return S_FALSE; } } nReturn = nSetBaudRate(); if(nReturn == defERR_OK) { for( UINT i = 0; i < sg_nNoOfChannels; i++) { xlStatus = linBusOn(sg_aodChannels[i].m_hnd); if (xlStatus < 0) { return S_FALSE; } else { sg_aodChannels[i].m_nIsOnBus = 1; } } // Update configuration to restore the settings /* Transit into 'CREATE TIME MAP' state */ sg_byCurrState = CREATE_MAP_TIMESTAMP; sg_bIsConnected = bConnect; } } else if (sg_bIsConnected && !bConnect) // Connected & to be disconnected { sg_bIsConnected = bConnect; Sleep(0); // Let other threads run for once nReturn = nDisconnectFromDriver(); } else { nReturn = defERR_OK; } if ( sg_bIsConnected ) { InitializeCriticalSection(&sg_CritSectForWrite); //Calculate connected Timestamp QueryPerformanceCounter(&sg_QueryTickCount); // Get frequency of the performance counter QueryPerformanceFrequency(&sg_lnFrequency); // Convert it to time stamp with the granularity of hundreds of microsecond //if (sg_QueryTickCount.QuadPart * 10000 > sg_QueryTickCount.QuadPart) if ((sg_QueryTickCount.QuadPart * 10000) > sg_lnFrequency.QuadPart) { sg_TimeStamp = (sg_QueryTickCount.QuadPart * 10000) / sg_lnFrequency.QuadPart; } else { sg_TimeStamp = (sg_QueryTickCount.QuadPart / sg_lnFrequency.QuadPart) * 10000; } } else { DeleteCriticalSection(&sg_CritSectForWrite); } return nReturn; }
