PCI1723 RTX驱动

////////////////////////////////////////////////////////////////// // // RTX_PCI1723Funcs.c - C file // // This file was generated using the RTX 8.1.0 Application Wizard. // ////////////////////////////////////////////////////////////////// #include "Rtx_PCI1723.h" /************************************************************************/ /*PCI-1723驱动代码 */ /************************************************************************/ DWORD Rtx_PCI1723_Initial(const UINT CardIndex,unsigned short DeviceID,unsigned short VendorID) { ULONG uDeviceNum = 0; //设备号 ULONG uFunNum = 0; //功能号 ULONG uBusNum = 0; //总线号 ULONG uOffset = 0; //偏置,用于检索插槽是否为空,空则为0,相邻插槽关联常数为256。 ULONG uNothingToWrite = 0; //获取PCI配置空间失败. ULONG uBytesWritten = 0; //获得PCI配置空间信息。一般为64字节。 BOOL bFlag = 0; // UINT uIndex = 0; //当系统中存在多块相同PCI卡时检索之用。 DWORD _base_addr = 0; //返回的基地址 //================================================================================================ PCI_SLOT_NUMBER SlotNumber; PPCI_COMMON_CONFIG PciData; UCHAR chBuffer[PCI_COMMON_HDR_LENGTH]; PciData = (PPCI_COMMON_CONFIG)chBuffer; SlotNumber.u.bits.Reserved = 0; bFlag = TRUE; for(uBusNum = 0; bFlag ;uBusNum++) { for(uDeviceNum = 0;uDeviceNum < PCI_MAX_DEVICES && bFlag ;uDeviceNum++) { SlotNumber.u.bits.DeviceNumber = uDeviceNum; for(uFunNum = 0; uFunNum < PCI_MAX_FUNCTION; uFunNum++) { SlotNumber.u.bits.FunctionNumber = uFunNum; uBytesWritten = RtGetBusDataByOffset(PCIConfiguration,uBusNum,SlotNumber.u.AsULONG,PciData,uOffset,PCI_COMMON_HDR_LENGTH); if(uBytesWritten == uNothingToWrite) { RtWprintf(L"NothingWritten!"); RtWprintf(L"Error ByteWritten = %d\n",uBytesWritten); uDeviceNum = PCI_MAX_DEVICES; bFlag = FALSE; break; } if(PciData->VendorID == PCI_INVALID_VENDORID) //如果VendorID等于0xFFFF,表示PCI卡错误,进行下一个循环 { break; } if((PciData->DeviceID == DeviceID) && (PciData->VendorID == VendorID) && uDeviceNum == CardIndex) { //设置命令参数用于访问PCI设备的控制寄存器 PciData->Command = (PCI_ENABLE_IO_SPACE | PCI_ENABLE_MEMORY_SPACE | PCI_ENABLE_BUS_MASTER | PCI_ENABLE_WRITE_AND_INVALIDATE); RtSetBusDataByOffset(PCIConfiguration,uBusNum,SlotNumber.u.AsULONG,PciData,0,PCI_COMMON_HDR_LENGTH); _base_addr = PciData->u.type0.BaseAddresses[2] & 0xfffffffe; return _base_addr; } } } } return 0; } // void Rtx_PCI1723_DAOutPut(DWORD dwAddr,int nChannel,double dValue) { if(dwAddr == 0) { return; } if(dValue < -9.9999999) { dValue = -9.9999999; } else if(dValue > 9.9999999) { dValue = 9.9999999; } RtWritePortUshort((PUSHORT)(dwAddr + 2*nChannel),(USHORT)(0x8000 + dValue * 32767/10.0)); } USHORT Rtx_PCI1723_DAReadLatch(DWORD dwAddr,int nChannel) { if(dwAddr == 0) { return -1; } return (RtReadPortUshort((PUSHORT)(dwAddr + 2*nChannel))); } int Rtx_PCI1723_GetBoardID(DWORD dwAddr) { int nID = 0; if(dwAddr == 0) { return -1; } nID = RtReadPortUshort((PUSHORT)(dwAddr + 0x10)) & 0x000f; return (nID); } USHORT Rtx_PCI1723_GetCurSynchStatus(DWORD dwAddr) { if(dwAddr == 0) { return -1; } return (RtReadPortUshort((PUSHORT)(dwAddr + 0x12)) & 0x0001); } void Rtx_PCI1723_DASetSynchronize(DWORD dwAddr,BOOL bSynchro) { USHORT uCurStatus = 0; if(dwAddr == 0) { return; } uCurStatus = Rtx_PCI1723_GetCurSynchStatus(dwAddr); if(bSynchro) { RtWritePortUshort((PUSHORT)(dwAddr + 0x12),(USHORT)(uCurStatus | 0x0001)); } else { RtWritePortUshort((PUSHORT)(dwAddr + 0x12),(USHORT)(uCurStatus & 0xfffe)); } } void Rtx_PCI1723_DIOSet(DWORD dwAddr,USHORT uStyle) { if(dwAddr == 0) { return; } RtWritePortUshort((PUSHORT)(dwAddr + 0x1A),uStyle); } USHORT Rtx_PCI1723_DIReadPort(DWORD dwAddr) { USHORT uValue = 0; if(dwAddr == 0) { return -1; } uValue = RtReadPortUshort((PUSHORT)(dwAddr + 0x1c)); return (uValue); } void Rtx_PCI1723_DOWritePort(DWORD dwAddr,USHORT nValue) { if(dwAddr == 0) { return; } RtWritePortUshort((PUSHORT)(dwAddr + 0x1c),(USHORT)nValue); } BOOL Rtx_PCI1723_ReleaseCard(DWORD dwAddr) { if(dwAddr != 0) { dwAddr = 0; return TRUE; } else { return FALSE; } }