/* * DEC 93 Erik Bos * * Copyright 1996 Marcus Meissner * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include typedef LARGE_INTEGER PHYSICAL_ADDRESS, *PPHYSICAL_ADDRESS; #undef SERIAL_LSRMST_ESCAPE #undef SERIAL_LSRMST_LSR_DATA #undef SERIAL_LSRMST_LSR_NODATA #undef SERIAL_LSRMST_MST #undef SERIAL_IOC_FCR_FIFO_ENABLE #undef SERIAL_IOC_FCR_RCVR_RESET #undef SERIAL_IOC_FCR_XMIT_RESET #undef SERIAL_IOC_FCR_DMA_MODE #undef SERIAL_IOC_FCR_RES1 #undef SERIAL_IOC_FCR_RES2 #undef SERIAL_IOC_FCR_RCVR_TRIGGER_LSB #undef SERIAL_IOC_FCR_RCVR_TRIGGER_MSB #undef SERIAL_IOC_MCR_DTR #undef SERIAL_IOC_MCR_RTS #undef SERIAL_IOC_MCR_OUT1 #undef SERIAL_IOC_MCR_OUT2 #undef SERIAL_IOC_MCR_LOOP #undef IOCTL_SERIAL_LSRMST_INSERT #include #define NDEBUG #include DEBUG_CHANNEL(comm); /*********************************************************************** * COMM_Parse* (Internal) * * The following COMM_Parse* functions are used by the BuildCommDCB * functions to help parse the various parts of the device control string. */ static LPCWSTR COMM_ParseStart(LPCWSTR ptr) { static const WCHAR comW[] = {'C','O','M',0}; /* The device control string may optionally start with "COMx" followed by an optional ':' and spaces. */ if(!strncmpiW(ptr, comW, 3)) { ptr += 3; /* Allow any com port above 0 as Win 9x does (NT only allows values for com ports which are actually present) */ if(*ptr < '1' || *ptr > '9') return NULL; /* Advance pointer past port number */ while(*ptr >= '0' && *ptr <= '9') ptr++; /* The com port number must be followed by a ':' or ' ' */ if(*ptr != ':' && *ptr != ' ') return NULL; /* Advance pointer to beginning of next parameter */ while(*ptr == ' ') ptr++; if(*ptr == ':') { ptr++; while(*ptr == ' ') ptr++; } } /* The device control string must not start with a space. */ else if(*ptr == ' ') return NULL; return ptr; } static LPCWSTR COMM_ParseNumber(LPCWSTR ptr, LPDWORD lpnumber) { if(*ptr < '0' || *ptr > '9') return NULL; *lpnumber = strtoulW(ptr, NULL, 10); while(*ptr >= '0' && *ptr <= '9') ptr++; return ptr; } static LPCWSTR COMM_ParseParity(LPCWSTR ptr, LPBYTE lpparity) { /* Contrary to what you might expect, Windows only sets the Parity member of DCB and not fParity even when parity is specified in the device control string */ switch(toupperW(*ptr++)) { case 'E': *lpparity = EVENPARITY; break; case 'M': *lpparity = MARKPARITY; break; case 'N': *lpparity = NOPARITY; break; case 'O': *lpparity = ODDPARITY; break; case 'S': *lpparity = SPACEPARITY; break; default: return NULL; } return ptr; } static LPCWSTR COMM_ParseByteSize(LPCWSTR ptr, LPBYTE lpbytesize) { DWORD temp; if(!(ptr = COMM_ParseNumber(ptr, &temp))) return NULL; if(temp >= 5 && temp <= 8) { *lpbytesize = temp; return ptr; } else return NULL; } static LPCWSTR COMM_ParseStopBits(LPCWSTR ptr, LPBYTE lpstopbits) { DWORD temp; static const WCHAR stopbits15W[] = {'1','.','5',0}; if(!strncmpW(stopbits15W, ptr, 3)) { ptr += 3; *lpstopbits = ONE5STOPBITS; } else { if(!(ptr = COMM_ParseNumber(ptr, &temp))) return NULL; if(temp == 1) *lpstopbits = ONESTOPBIT; else if(temp == 2) *lpstopbits = TWOSTOPBITS; else return NULL; } return ptr; } static LPCWSTR COMM_ParseOnOff(LPCWSTR ptr, LPDWORD lponoff) { static const WCHAR onW[] = {'o','n',0}; static const WCHAR offW[] = {'o','f','f',0}; if(!strncmpiW(onW, ptr, 2)) { ptr += 2; *lponoff = 1; } else if(!strncmpiW(offW, ptr, 3)) { ptr += 3; *lponoff = 0; } else return NULL; return ptr; } /*********************************************************************** * COMM_BuildOldCommDCB (Internal) * * Build a DCB using the old style settings string eg: "96,n,8,1" */ static BOOL COMM_BuildOldCommDCB(LPCWSTR device, LPDCB lpdcb) { WCHAR last = 0; if(!(device = COMM_ParseNumber(device, &lpdcb->BaudRate))) return FALSE; switch(lpdcb->BaudRate) { case 11: case 30: case 60: lpdcb->BaudRate *= 10; break; case 12: case 24: case 48: case 96: lpdcb->BaudRate *= 100; break; case 19: lpdcb->BaudRate = 19200; break; } while(*device == ' ') device++; if(*device++ != ',') return FALSE; while(*device == ' ') device++; if(!(device = COMM_ParseParity(device, &lpdcb->Parity))) return FALSE; while(*device == ' ') device++; if(*device++ != ',') return FALSE; while(*device == ' ') device++; if(!(device = COMM_ParseByteSize(device, &lpdcb->ByteSize))) return FALSE; while(*device == ' ') device++; if(*device++ != ',') return FALSE; while(*device == ' ') device++; if(!(device = COMM_ParseStopBits(device, &lpdcb->StopBits))) return FALSE; /* The last parameter for flow control is optional. */ while(*device == ' ') device++; if(*device == ',') { device++; while(*device == ' ') device++; if(*device) last = toupperW(*device++); while(*device == ' ') device++; } /* Win NT sets the flow control members based on (or lack of) the last parameter. Win 9x does not set these members. */ switch(last) { case 0: lpdcb->fInX = FALSE; lpdcb->fOutX = FALSE; lpdcb->fOutxCtsFlow = FALSE; lpdcb->fOutxDsrFlow = FALSE; lpdcb->fDtrControl = DTR_CONTROL_ENABLE; lpdcb->fRtsControl = RTS_CONTROL_ENABLE; break; case 'X': lpdcb->fInX = TRUE; lpdcb->fOutX = TRUE; lpdcb->fOutxCtsFlow = FALSE; lpdcb->fOutxDsrFlow = FALSE; lpdcb->fDtrControl = DTR_CONTROL_ENABLE; lpdcb->fRtsControl = RTS_CONTROL_ENABLE; break; case 'P': lpdcb->fInX = FALSE; lpdcb->fOutX = FALSE; lpdcb->fOutxCtsFlow = TRUE; lpdcb->fOutxDsrFlow = TRUE; lpdcb->fDtrControl = DTR_CONTROL_HANDSHAKE; lpdcb->fRtsControl = RTS_CONTROL_HANDSHAKE; break; default: return FALSE; } /* This should be the end of the string. */ if(*device) return FALSE; return TRUE; } /*********************************************************************** * COMM_BuildNewCommDCB (Internal) * * Build a DCB using the new style settings string. * eg: "baud=9600 parity=n data=8 stop=1 xon=on to=on" */ static BOOL COMM_BuildNewCommDCB(LPCWSTR device, LPDCB lpdcb, LPCOMMTIMEOUTS lptimeouts) { DWORD temp; BOOL baud = FALSE, stop = FALSE; static const WCHAR baudW[] = {'b','a','u','d','=',0}; static const WCHAR parityW[] = {'p','a','r','i','t','y','=',0}; static const WCHAR dataW[] = {'d','a','t','a','=',0}; static const WCHAR stopW[] = {'s','t','o','p','=',0}; static const WCHAR toW[] = {'t','o','=',0}; static const WCHAR xonW[] = {'x','o','n','=',0}; static const WCHAR odsrW[] = {'o','d','s','r','=',0}; static const WCHAR octsW[] = {'o','c','t','s','=',0}; static const WCHAR dtrW[] = {'d','t','r','=',0}; static const WCHAR rtsW[] = {'r','t','s','=',0}; static const WCHAR idsrW[] = {'i','d','s','r','=',0}; while(*device) { while(*device == ' ') device++; if(!strncmpiW(baudW, device, 5)) { baud = TRUE; if(!(device = COMM_ParseNumber(device + 5, &lpdcb->BaudRate))) return FALSE; } else if(!strncmpiW(parityW, device, 7)) { if(!(device = COMM_ParseParity(device + 7, &lpdcb->Parity))) return FALSE; } else if(!strncmpiW(dataW, device, 5)) { if(!(device = COMM_ParseByteSize(device + 5, &lpdcb->ByteSize))) return FALSE; } else if(!strncmpiW(stopW, device, 5)) { stop = TRUE; if(!(device = COMM_ParseStopBits(device + 5, &lpdcb->StopBits))) return FALSE; } else if(!strncmpiW(toW, device, 3)) { if(!(device = COMM_ParseOnOff(device + 3, &temp))) return FALSE; lptimeouts->ReadIntervalTimeout = 0; lptimeouts->ReadTotalTimeoutMultiplier = 0; lptimeouts->ReadTotalTimeoutConstant = 0; lptimeouts->WriteTotalTimeoutMultiplier = 0; lptimeouts->WriteTotalTimeoutConstant = temp ? 60000 : 0; } else if(!strncmpiW(xonW, device, 4)) { if(!(device = COMM_ParseOnOff(device + 4, &temp))) return FALSE; lpdcb->fOutX = temp; lpdcb->fInX = temp; } else if(!strncmpiW(odsrW, device, 5)) { if(!(device = COMM_ParseOnOff(device + 5, &temp))) return FALSE; lpdcb->fOutxDsrFlow = temp; } else if(!strncmpiW(octsW, device, 5)) { if(!(device = COMM_ParseOnOff(device + 5, &temp))) return FALSE; lpdcb->fOutxCtsFlow = temp; } else if(!strncmpiW(dtrW, device, 4)) { if(!(device = COMM_ParseOnOff(device + 4, &temp))) return FALSE; lpdcb->fDtrControl = temp; } else if(!strncmpiW(rtsW, device, 4)) { if(!(device = COMM_ParseOnOff(device + 4, &temp))) return FALSE; lpdcb->fRtsControl = temp; } else if(!strncmpiW(idsrW, device, 5)) { if(!(device = COMM_ParseOnOff(device + 5, &temp))) return FALSE; /* Win NT sets the fDsrSensitivity member based on the idsr parameter. Win 9x sets fOutxDsrFlow instead. */ lpdcb->fDsrSensitivity = temp; } else return FALSE; /* After the above parsing, the next character (if not the end of the string) should be a space */ if(*device && *device != ' ') return FALSE; } /* If stop bits were not specified, a default is always supplied. */ if(!stop) { if(baud && lpdcb->BaudRate == 110) lpdcb->StopBits = TWOSTOPBITS; else lpdcb->StopBits = ONESTOPBIT; } return TRUE; } /************************************************************************** * BuildCommDCBA (KERNEL32.@) * * Updates a device control block data structure with values from an * ascii device control string. The device control string has two forms * normal and extended, it must be exclusively in one or the other form. * * RETURNS * * True on success, false on a malformed control string. */ BOOL WINAPI BuildCommDCBA( LPCSTR device, /* [in] The ascii device control string used to update the DCB. */ LPDCB lpdcb) /* [out] The device control block to be updated. */ { return BuildCommDCBAndTimeoutsA(device,lpdcb,NULL); } /************************************************************************** * BuildCommDCBAndTimeoutsA (KERNEL32.@) * * Updates a device control block data structure with values from an * ascii device control string. Taking timeout values from a timeouts * struct if desired by the control string. * * RETURNS * * True on success, false bad handles etc. */ BOOL WINAPI BuildCommDCBAndTimeoutsA( LPCSTR device, /* [in] The ascii device control string. */ LPDCB lpdcb, /* [out] The device control block to be updated. */ LPCOMMTIMEOUTS lptimeouts) /* [in] The COMMTIMEOUTS structure to be updated. */ { BOOL ret = FALSE; UNICODE_STRING deviceW; TRACE("(%s,%p,%p)\n",device,lpdcb,lptimeouts); if(device) RtlCreateUnicodeStringFromAsciiz(&deviceW,device); else deviceW.Buffer = NULL; if(deviceW.Buffer) ret = BuildCommDCBAndTimeoutsW(deviceW.Buffer,lpdcb,lptimeouts); RtlFreeUnicodeString(&deviceW); return ret; } /************************************************************************** * BuildCommDCBAndTimeoutsW (KERNEL32.@) * * Updates a device control block data structure with values from a * unicode device control string. Taking timeout values from a timeouts * struct if desired by the control string. * * RETURNS * * True on success, false bad handles etc */ BOOL WINAPI BuildCommDCBAndTimeoutsW( LPCWSTR devid, /* [in] The unicode device control string. */ LPDCB lpdcb, /* [out] The device control block to be updated. */ LPCOMMTIMEOUTS lptimeouts) /* [in] The COMMTIMEOUTS structure to be updated. */ { DCB dcb; COMMTIMEOUTS timeouts; BOOL result; LPCWSTR ptr = devid; TRACE("(%s,%p,%p)\n",debugstr_w(devid),lpdcb,lptimeouts); memset(&timeouts, 0, sizeof timeouts); /* Set DCBlength. (Windows NT does not do this, but 9x does) */ lpdcb->DCBlength = sizeof(DCB); /* Make a copy of the original data structures to work with since if if there is an error in the device control string the originals should not be modified (except possibly DCBlength) */ dcb = *lpdcb; if(lptimeouts) timeouts = *lptimeouts; ptr = COMM_ParseStart(ptr); if(ptr == NULL) result = FALSE; else if(strchrW(ptr, ',')) result = COMM_BuildOldCommDCB(ptr, &dcb); else result = COMM_BuildNewCommDCB(ptr, &dcb, &timeouts); if(result) { *lpdcb = dcb; if(lptimeouts) *lptimeouts = timeouts; return TRUE; } else { WARN("Invalid device control string: %s\n", debugstr_w(devid)); SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } } /************************************************************************** * BuildCommDCBW (KERNEL32.@) * * Updates a device control block structure with values from an * unicode device control string. The device control string has two forms * normal and extended, it must be exclusively in one or the other form. * * RETURNS * * True on success, false on a malformed control string. */ BOOL WINAPI BuildCommDCBW( LPCWSTR devid, /* [in] The unicode device control string. */ LPDCB lpdcb) /* [out] The device control block to be updated. */ { return BuildCommDCBAndTimeoutsW(devid,lpdcb,NULL); } /***************************************************************************** * SetCommBreak (KERNEL32.@) * * Halts the transmission of characters to a communications device. * * PARAMS * handle [in] The communications device to suspend * * RETURNS * * True on success, and false if the communications device could not be found, * the control is not supported. * * BUGS * * Only TIOCSBRK and TIOCCBRK are supported. */ BOOL WINAPI SetCommBreak(HANDLE handle) { DWORD dwBytesReturned; return DeviceIoControl(handle, IOCTL_SERIAL_SET_BREAK_ON, NULL, 0, NULL, 0, &dwBytesReturned, NULL); } /***************************************************************************** * ClearCommBreak (KERNEL32.@) * * Resumes character transmission from a communication device. * * PARAMS * * handle [in] The halted communication device whose character transmission is to be resumed * * RETURNS * * True on success and false if the communications device could not be found. * * BUGS * * Only TIOCSBRK and TIOCCBRK are supported. */ BOOL WINAPI ClearCommBreak(HANDLE handle) { DWORD dwBytesReturned; return DeviceIoControl(handle, IOCTL_SERIAL_SET_BREAK_OFF, NULL, 0, NULL, 0, &dwBytesReturned, NULL); } /***************************************************************************** * EscapeCommFunction (KERNEL32.@) * * Directs a communication device to perform an extended function. * * PARAMS * * handle [in] The communication device to perform the extended function * nFunction [in] The extended function to be performed * * RETURNS * * True or requested data on successful completion of the command, * false if the device is not present cannot execute the command * or the command failed. */ BOOL WINAPI EscapeCommFunction(HANDLE handle, DWORD func) { DWORD ioc; DWORD dwBytesReturned; switch (func) { case CLRDTR: ioc = IOCTL_SERIAL_CLR_DTR; break; case CLRRTS: ioc = IOCTL_SERIAL_CLR_RTS; break; case SETDTR: ioc = IOCTL_SERIAL_SET_DTR; break; case SETRTS: ioc = IOCTL_SERIAL_SET_RTS; break; case SETXOFF: ioc = IOCTL_SERIAL_SET_XOFF; break; case SETXON: ioc = IOCTL_SERIAL_SET_XON; break; case SETBREAK: ioc = IOCTL_SERIAL_SET_BREAK_ON; break; case CLRBREAK: ioc = IOCTL_SERIAL_SET_BREAK_OFF; break; case RESETDEV: ioc = IOCTL_SERIAL_RESET_DEVICE; break; default: ERR("Unknown function code (%u)\n", func); SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } return DeviceIoControl(handle, ioc, NULL, 0, NULL, 0, &dwBytesReturned, NULL); } /******************************************************************** * PurgeComm (KERNEL32.@) * * Terminates pending operations and/or discards buffers on a * communication resource. * * PARAMS * * handle [in] The communication resource to be purged * flags [in] Flags for clear pending/buffer on input/output * * RETURNS * * True on success and false if the communications handle is bad. */ BOOL WINAPI PurgeComm(HANDLE handle, DWORD flags) { DWORD dwBytesReturned; return DeviceIoControl(handle, IOCTL_SERIAL_PURGE, &flags, sizeof(flags), NULL, 0, &dwBytesReturned, NULL); } /***************************************************************************** * ClearCommError (KERNEL32.@) * * Enables further I/O operations on a communications resource after * supplying error and current status information. * * PARAMS * * handle [in] The communication resource with the error * errors [out] Flags indicating error the resource experienced * lpStat [out] The status of the communication resource * RETURNS * * True on success, false if the communication resource handle is bad. */ BOOL WINAPI ClearCommError(HANDLE handle, LPDWORD errors, LPCOMSTAT lpStat) { SERIAL_STATUS ss; DWORD dwBytesReturned; if (!DeviceIoControl(handle, IOCTL_SERIAL_GET_COMMSTATUS, NULL, 0, &ss, sizeof(ss), &dwBytesReturned, NULL)) return FALSE; if (errors) { *errors = 0; if (ss.Errors & SERIAL_ERROR_BREAK) *errors |= CE_BREAK; if (ss.Errors & SERIAL_ERROR_FRAMING) *errors |= CE_FRAME; if (ss.Errors & SERIAL_ERROR_OVERRUN) *errors |= CE_OVERRUN; if (ss.Errors & SERIAL_ERROR_QUEUEOVERRUN) *errors |= CE_RXOVER; if (ss.Errors & SERIAL_ERROR_PARITY) *errors |= CE_RXPARITY; } if (lpStat) { memset(lpStat, 0, sizeof(*lpStat)); if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_CTS) lpStat->fCtsHold = TRUE; if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_DSR) lpStat->fDsrHold = TRUE; if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_DCD) lpStat->fRlsdHold = TRUE; if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_XON) lpStat->fXoffHold = TRUE; if (ss.HoldReasons & SERIAL_TX_WAITING_XOFF_SENT) lpStat->fXoffSent = TRUE; if (ss.EofReceived) lpStat->fEof = TRUE; if (ss.WaitForImmediate) lpStat->fTxim = TRUE; lpStat->cbInQue = ss.AmountInInQueue; lpStat->cbOutQue = ss.AmountInOutQueue; } return TRUE; } /***************************************************************************** * SetupComm (KERNEL32.@) * * Called after CreateFile to hint to the communication resource to use * specified sizes for input and output buffers rather than the default values. * * PARAMS * handle [in] The just created communication resource handle * insize [in] The suggested size of the communication resources input buffer in bytes * outsize [in] The suggested size of the communication resources output buffer in bytes * * RETURNS * * True if successful, false if the communications resource handle is bad. * * BUGS * * Stub. */ BOOL WINAPI SetupComm(HANDLE handle, DWORD insize, DWORD outsize) { SERIAL_QUEUE_SIZE sqs; DWORD dwBytesReturned; sqs.InSize = insize; sqs.OutSize = outsize; return DeviceIoControl(handle, IOCTL_SERIAL_SET_QUEUE_SIZE, &sqs, sizeof(sqs), NULL, 0, &dwBytesReturned, NULL); } /***************************************************************************** * GetCommMask (KERNEL32.@) * * Obtain the events associated with a communication device that will cause * a call WaitCommEvent to return. * * PARAMS * * handle [in] The communications device * evtmask [out] The events which cause WaitCommEvent to return * * RETURNS * * True on success, fail on bad device handle etc. */ BOOL WINAPI GetCommMask(HANDLE handle, LPDWORD evtmask) { DWORD dwBytesReturned; TRACE("handle %p, mask %p\n", handle, evtmask); return DeviceIoControl(handle, IOCTL_SERIAL_GET_WAIT_MASK, NULL, 0, evtmask, sizeof(*evtmask), &dwBytesReturned, NULL); } /***************************************************************************** * SetCommMask (KERNEL32.@) * * There be some things we need to hear about yon there communications device. * (Set which events associated with a communication device should cause * a call WaitCommEvent to return.) * * PARAMS * * handle [in] The communications device * evtmask [in] The events that are to be monitored * * RETURNS * * True on success, false on bad handle etc. */ BOOL WINAPI SetCommMask(HANDLE handle, DWORD evtmask) { DWORD dwBytesReturned; TRACE("handle %p, mask %x\n", handle, evtmask); return DeviceIoControl(handle, IOCTL_SERIAL_SET_WAIT_MASK, &evtmask, sizeof(evtmask), NULL, 0, &dwBytesReturned, NULL); } static void dump_dcb(const DCB* lpdcb) { TRACE("bytesize=%d baudrate=%d fParity=%d Parity=%d stopbits=%d\n", lpdcb->ByteSize, lpdcb->BaudRate, lpdcb->fParity, lpdcb->Parity, (lpdcb->StopBits == ONESTOPBIT) ? 1 : (lpdcb->StopBits == TWOSTOPBITS) ? 2 : 0); TRACE("%sIXON %sIXOFF\n", (lpdcb->fOutX) ? "" : "~", (lpdcb->fInX) ? "" : "~"); TRACE("fOutxCtsFlow=%d fRtsControl=%d\n", lpdcb->fOutxCtsFlow, lpdcb->fRtsControl); TRACE("fOutxDsrFlow=%d fDtrControl=%d\n", lpdcb->fOutxDsrFlow, lpdcb->fDtrControl); if (lpdcb->fOutxCtsFlow || lpdcb->fRtsControl == RTS_CONTROL_HANDSHAKE) TRACE("CRTSCTS\n"); else TRACE("~CRTSCTS\n"); } /***************************************************************************** * SetCommState (KERNEL32.@) * * Re-initializes all hardware and control settings of a communications device, * with values from a device control block without affecting the input and output * queues. * * PARAMS * * handle [in] The communications device * lpdcb [out] The device control block * * RETURNS * * True on success, false on failure, e.g., if the XonChar is equal to the XoffChar. */ BOOL WINAPI SetCommState( HANDLE handle, LPDCB lpdcb) { SERIAL_BAUD_RATE sbr; SERIAL_LINE_CONTROL slc; SERIAL_HANDFLOW shf; SERIAL_CHARS sc; DWORD dwBytesReturned; TRACE("handle %p, ptr %p\n", handle, lpdcb); if (lpdcb == NULL) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } dump_dcb(lpdcb); sbr.BaudRate = lpdcb->BaudRate; slc.StopBits = lpdcb->StopBits; slc.Parity = lpdcb->Parity; slc.WordLength = lpdcb->ByteSize; shf.ControlHandShake = 0; shf.FlowReplace = 0; if (lpdcb->fOutxCtsFlow) shf.ControlHandShake |= SERIAL_CTS_HANDSHAKE; if (lpdcb->fOutxDsrFlow) shf.ControlHandShake |= SERIAL_DSR_HANDSHAKE; switch (lpdcb->fDtrControl) { case DTR_CONTROL_DISABLE: break; case DTR_CONTROL_ENABLE: shf.ControlHandShake |= SERIAL_DTR_CONTROL; break; case DTR_CONTROL_HANDSHAKE: shf.ControlHandShake |= SERIAL_DTR_HANDSHAKE;break; default: SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } switch (lpdcb->fRtsControl) { case RTS_CONTROL_DISABLE: break; case RTS_CONTROL_ENABLE: shf.FlowReplace |= SERIAL_RTS_CONTROL; break; case RTS_CONTROL_HANDSHAKE: shf.FlowReplace |= SERIAL_RTS_HANDSHAKE; break; case RTS_CONTROL_TOGGLE: shf.FlowReplace |= SERIAL_RTS_CONTROL | SERIAL_RTS_HANDSHAKE; break; default: SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } if (lpdcb->fDsrSensitivity) shf.ControlHandShake |= SERIAL_DSR_SENSITIVITY; if (lpdcb->fAbortOnError) shf.ControlHandShake |= SERIAL_ERROR_ABORT; if (lpdcb->fErrorChar) shf.FlowReplace |= SERIAL_ERROR_CHAR; if (lpdcb->fNull) shf.FlowReplace |= SERIAL_NULL_STRIPPING; if (lpdcb->fTXContinueOnXoff) shf.FlowReplace |= SERIAL_XOFF_CONTINUE; if (lpdcb->fOutX) shf.FlowReplace |= SERIAL_AUTO_TRANSMIT; if (lpdcb->fInX) shf.FlowReplace |= SERIAL_AUTO_RECEIVE; shf.XonLimit = lpdcb->XonLim; shf.XoffLimit = lpdcb->XoffLim; sc.EofChar = lpdcb->EofChar; sc.ErrorChar = lpdcb->ErrorChar; sc.BreakChar = 0; sc.EventChar = lpdcb->EvtChar; sc.XonChar = lpdcb->XonChar; sc.XoffChar = lpdcb->XoffChar; /* note: change DTR/RTS lines after setting the comm attributes, * so flow control does not interfere. */ return (DeviceIoControl(handle, IOCTL_SERIAL_SET_BAUD_RATE, &sbr, sizeof(sbr), NULL, 0, &dwBytesReturned, NULL) && DeviceIoControl(handle, IOCTL_SERIAL_SET_LINE_CONTROL, &slc, sizeof(slc), NULL, 0, &dwBytesReturned, NULL) && DeviceIoControl(handle, IOCTL_SERIAL_SET_HANDFLOW, &shf, sizeof(shf), NULL, 0, &dwBytesReturned, NULL) && DeviceIoControl(handle, IOCTL_SERIAL_SET_CHARS, &sc, sizeof(sc), NULL, 0, &dwBytesReturned, NULL)); } /***************************************************************************** * GetCommState (KERNEL32.@) * * Fills in a device control block with information from a communications device. * * PARAMS * handle [in] The communications device * lpdcb [out] The device control block * * RETURNS * * True on success, false if the communication device handle is bad etc * * BUGS * * XonChar and XoffChar are not set. */ BOOL WINAPI GetCommState(HANDLE handle, LPDCB lpdcb) { SERIAL_BAUD_RATE sbr; SERIAL_LINE_CONTROL slc; SERIAL_HANDFLOW shf; SERIAL_CHARS sc; DWORD dwBytesReturned; TRACE("handle %p, ptr %p\n", handle, lpdcb); if (!lpdcb) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } if (!DeviceIoControl(handle, IOCTL_SERIAL_GET_BAUD_RATE, NULL, 0, &sbr, sizeof(sbr), &dwBytesReturned, NULL) || !DeviceIoControl(handle, IOCTL_SERIAL_GET_LINE_CONTROL, NULL, 0, &slc, sizeof(slc), &dwBytesReturned, NULL) || !DeviceIoControl(handle, IOCTL_SERIAL_GET_HANDFLOW, NULL, 0, &shf, sizeof(shf), &dwBytesReturned, NULL) || !DeviceIoControl(handle, IOCTL_SERIAL_GET_CHARS, NULL, 0, &sc, sizeof(sc), &dwBytesReturned, NULL)) return FALSE; memset(lpdcb, 0, sizeof(*lpdcb)); lpdcb->DCBlength = sizeof(*lpdcb); /* yes, they seem no never be (re)set on NT */ lpdcb->fBinary = 1; lpdcb->fParity = 0; lpdcb->BaudRate = sbr.BaudRate; lpdcb->StopBits = slc.StopBits; lpdcb->Parity = slc.Parity; lpdcb->ByteSize = slc.WordLength; if (shf.ControlHandShake & SERIAL_CTS_HANDSHAKE) lpdcb->fOutxCtsFlow = 1; if (shf.ControlHandShake & SERIAL_DSR_HANDSHAKE) lpdcb->fOutxDsrFlow = 1; switch (shf.ControlHandShake & (SERIAL_DTR_CONTROL | SERIAL_DTR_HANDSHAKE)) { case 0: lpdcb->fDtrControl = DTR_CONTROL_DISABLE; break; case SERIAL_DTR_CONTROL: lpdcb->fDtrControl = DTR_CONTROL_ENABLE; break; case SERIAL_DTR_HANDSHAKE: lpdcb->fDtrControl = DTR_CONTROL_HANDSHAKE; break; } switch (shf.FlowReplace & (SERIAL_RTS_CONTROL | SERIAL_RTS_HANDSHAKE)) { case 0: lpdcb->fRtsControl = RTS_CONTROL_DISABLE; break; case SERIAL_RTS_CONTROL: lpdcb->fRtsControl = RTS_CONTROL_ENABLE; break; case SERIAL_RTS_HANDSHAKE: lpdcb->fRtsControl = RTS_CONTROL_HANDSHAKE; break; case SERIAL_RTS_CONTROL | SERIAL_RTS_HANDSHAKE: lpdcb->fRtsControl = RTS_CONTROL_TOGGLE; break; } if (shf.ControlHandShake & SERIAL_DSR_SENSITIVITY) lpdcb->fDsrSensitivity = 1; if (shf.ControlHandShake & SERIAL_ERROR_ABORT) lpdcb->fAbortOnError = 1; if (shf.FlowReplace & SERIAL_ERROR_CHAR) lpdcb->fErrorChar = 1; if (shf.FlowReplace & SERIAL_NULL_STRIPPING) lpdcb->fNull = 1; if (shf.FlowReplace & SERIAL_XOFF_CONTINUE) lpdcb->fTXContinueOnXoff = 1; lpdcb->XonLim = shf.XonLimit; lpdcb->XoffLim = shf.XoffLimit; if (shf.FlowReplace & SERIAL_AUTO_TRANSMIT) lpdcb->fOutX = 1; if (shf.FlowReplace & SERIAL_AUTO_RECEIVE) lpdcb->fInX = 1; lpdcb->EofChar = sc.EofChar; lpdcb->ErrorChar = sc.ErrorChar; lpdcb->EvtChar = sc.EventChar; lpdcb->XonChar = sc.XonChar; lpdcb->XoffChar = sc.XoffChar; TRACE("OK\n"); dump_dcb(lpdcb); return TRUE; } /***************************************************************************** * TransmitCommChar (KERNEL32.@) * * Transmits a single character in front of any pending characters in the * output buffer. Usually used to send an interrupt character to a host. * * PARAMS * hComm [in] The communication device in need of a command character * chTransmit [in] The character to transmit * * RETURNS * * True if the call succeeded, false if the previous command character to the * same device has not been sent yet the handle is bad etc. * */ BOOL WINAPI TransmitCommChar(HANDLE hComm, CHAR chTransmit) { DWORD dwBytesReturned; return DeviceIoControl(hComm, IOCTL_SERIAL_IMMEDIATE_CHAR, &chTransmit, sizeof(chTransmit), NULL, 0, &dwBytesReturned, NULL); } /***************************************************************************** * GetCommTimeouts (KERNEL32.@) * * Obtains the request timeout values for the communications device. * * PARAMS * hComm [in] The communications device * lptimeouts [out] The struct of request timeouts * * RETURNS * * True on success, false if communications device handle is bad * or the target structure is null. */ BOOL WINAPI GetCommTimeouts(HANDLE hComm, LPCOMMTIMEOUTS lptimeouts) { SERIAL_TIMEOUTS st; DWORD dwBytesReturned; TRACE("(%p, %p)\n", hComm, lptimeouts); if (!lptimeouts) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } if (!DeviceIoControl(hComm, IOCTL_SERIAL_GET_TIMEOUTS, NULL, 0, &st, sizeof(st), &dwBytesReturned, NULL)) return FALSE; lptimeouts->ReadIntervalTimeout = st.ReadIntervalTimeout; lptimeouts->ReadTotalTimeoutMultiplier = st.ReadTotalTimeoutMultiplier; lptimeouts->ReadTotalTimeoutConstant = st.ReadTotalTimeoutConstant; lptimeouts->WriteTotalTimeoutMultiplier = st.WriteTotalTimeoutMultiplier; lptimeouts->WriteTotalTimeoutConstant = st.WriteTotalTimeoutConstant; return TRUE; } /***************************************************************************** * SetCommTimeouts (KERNEL32.@) * * Sets the timeouts used when reading and writing data to/from COMM ports. * * PARAMS * hComm [in] handle of COMM device * lptimeouts [in] pointer to COMMTIMEOUTS structure * * ReadIntervalTimeout * - converted and passes to linux kernel as c_cc[VTIME] * ReadTotalTimeoutMultiplier, ReadTotalTimeoutConstant * - used in ReadFile to calculate GetOverlappedResult's timeout * WriteTotalTimeoutMultiplier, WriteTotalTimeoutConstant * - used in WriteFile to calculate GetOverlappedResult's timeout * * RETURNS * * True if the timeouts were set, false otherwise. */ BOOL WINAPI SetCommTimeouts(HANDLE hComm, LPCOMMTIMEOUTS lptimeouts) { SERIAL_TIMEOUTS st; DWORD dwBytesReturned; TRACE("(%p, %p)\n", hComm, lptimeouts); if (lptimeouts == NULL) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } st.ReadIntervalTimeout = lptimeouts->ReadIntervalTimeout; st.ReadTotalTimeoutMultiplier = lptimeouts->ReadTotalTimeoutMultiplier; st.ReadTotalTimeoutConstant = lptimeouts->ReadTotalTimeoutConstant; st.WriteTotalTimeoutMultiplier = lptimeouts->WriteTotalTimeoutMultiplier; st.WriteTotalTimeoutConstant = lptimeouts->WriteTotalTimeoutConstant; return DeviceIoControl(hComm, IOCTL_SERIAL_SET_TIMEOUTS, &st, sizeof(st), NULL, 0, &dwBytesReturned, NULL); } /*********************************************************************** * GetCommModemStatus (KERNEL32.@) * * Obtains the four control register bits if supported by the hardware. * * PARAMS * * hFile [in] The communications device * lpModemStat [out] The control register bits * * RETURNS * * True if the communications handle was good and for hardware that * control register access, false otherwise. */ BOOL WINAPI GetCommModemStatus(HANDLE hFile, LPDWORD lpModemStat) { DWORD dwBytesReturned; return DeviceIoControl(hFile, IOCTL_SERIAL_GET_MODEMSTATUS, NULL, 0, lpModemStat, sizeof(DWORD), &dwBytesReturned, NULL); } /*********************************************************************** * WaitCommEvent (KERNEL32.@) * * Wait until something interesting happens on a COMM port. * Interesting things (events) are set by calling SetCommMask before * this function is called. * * RETURNS * TRUE if successful * FALSE if failure * * The set of detected events will be written to *lpdwEventMask * ERROR_IO_PENDING will be returned the overlapped structure was passed * * BUGS: * Only supports EV_RXCHAR and EV_TXEMPTY */ BOOL WINAPI WaitCommEvent( HANDLE hFile, /* [in] handle of comm port to wait for */ LPDWORD lpdwEvents, /* [out] event(s) that were detected */ LPOVERLAPPED lpOverlapped) /* [in/out] for Asynchronous waiting */ { return DeviceIoControl(hFile, IOCTL_SERIAL_WAIT_ON_MASK, NULL, 0, lpdwEvents, sizeof(DWORD), NULL, lpOverlapped); } /*********************************************************************** * GetCommProperties (KERNEL32.@) * * This function fills in a structure with the capabilities of the * communications port driver. * * RETURNS * * TRUE on success, FALSE on failure * If successful, the lpCommProp structure be filled in with * properties of the comm port. */ BOOL WINAPI GetCommProperties( HANDLE hFile, /* [in] handle of the comm port */ LPCOMMPROP lpCommProp) /* [out] pointer to struct to be filled */ { TRACE("(%p %p)\n",hFile,lpCommProp); if(!lpCommProp) return FALSE; /* * These values should be valid for LINUX's serial driver * FIXME: Perhaps they deserve an #ifdef LINUX */ memset(lpCommProp,0,sizeof(COMMPROP)); lpCommProp->wPacketLength = 1; lpCommProp->wPacketVersion = 1; lpCommProp->dwServiceMask = SP_SERIALCOMM; lpCommProp->dwMaxTxQueue = 4096; lpCommProp->dwMaxRxQueue = 4096; lpCommProp->dwMaxBaud = BAUD_115200; lpCommProp->dwProvSubType = PST_RS232; lpCommProp->dwProvCapabilities = PCF_DTRDSR | PCF_PARITY_CHECK | PCF_RTSCTS | PCF_TOTALTIMEOUTS; lpCommProp->dwSettableParams = SP_BAUD | SP_DATABITS | SP_HANDSHAKING | SP_PARITY | SP_PARITY_CHECK | SP_STOPBITS ; lpCommProp->dwSettableBaud = BAUD_075 | BAUD_110 | BAUD_134_5 | BAUD_150 | BAUD_300 | BAUD_600 | BAUD_1200 | BAUD_1800 | BAUD_2400 | BAUD_4800 | BAUD_9600 | BAUD_19200 | BAUD_38400 | BAUD_57600 | BAUD_115200 ; lpCommProp->wSettableData = DATABITS_5 | DATABITS_6 | DATABITS_7 | DATABITS_8 ; lpCommProp->wSettableStopParity = STOPBITS_10 | STOPBITS_15 | STOPBITS_20 | PARITY_NONE | PARITY_ODD |PARITY_EVEN | PARITY_MARK | PARITY_SPACE; lpCommProp->dwCurrentTxQueue = lpCommProp->dwMaxTxQueue; lpCommProp->dwCurrentRxQueue = lpCommProp->dwMaxRxQueue; return TRUE; } /*********************************************************************** * FIXME: * The functionality of CommConfigDialogA, GetDefaultCommConfig and * SetDefaultCommConfig is implemented in a DLL (usually SERIALUI.DLL). * This is dependent on the type of COMM port, but since it is doubtful * anybody will get around to implementing support for fancy serial * ports in WINE, this is hardcoded for the time being. The name of * this DLL should be stored in and read from the system registry in * the hive HKEY_LOCAL_MACHINE, key * System\\CurrentControlSet\\Services\\Class\\Ports\\???? * where ???? is the port number... that is determined by PNP * The DLL should be loaded when the COMM port is opened, and closed * when the COMM port is closed. - MJM 20 June 2000 ***********************************************************************/ static const WCHAR lpszSerialUI[] = { 's','e','r','i','a','l','u','i','.','d','l','l',0 }; /*********************************************************************** * CommConfigDialogA (KERNEL32.@) * * Raises a dialog that allows the user to configure a comm port. * Fills the COMMCONFIG struct with information specified by the user. * This function should call a similar routine in the COMM driver... * * RETURNS * * TRUE on success, FALSE on failure * If successful, the lpCommConfig structure will contain a new * configuration for the comm port, as specified by the user. * * BUGS * The library with the CommConfigDialog code is never unloaded. * Perhaps this should be done when the comm port is closed? */ BOOL WINAPI CommConfigDialogA( LPCSTR lpszDevice, /* [in] name of communications device */ HWND hWnd, /* [in] parent window for the dialog */ LPCOMMCONFIG lpCommConfig) /* [out] pointer to struct to fill */ { LPWSTR lpDeviceW = NULL; DWORD len; BOOL r; TRACE("(%s, %p, %p)\n", debugstr_a(lpszDevice), hWnd, lpCommConfig); if (lpszDevice) { len = MultiByteToWideChar( CP_ACP, 0, lpszDevice, -1, NULL, 0 ); lpDeviceW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ); MultiByteToWideChar( CP_ACP, 0, lpszDevice, -1, lpDeviceW, len ); } r = CommConfigDialogW(lpDeviceW, hWnd, lpCommConfig); HeapFree( GetProcessHeap(), 0, lpDeviceW ); return r; } /*********************************************************************** * CommConfigDialogW (KERNEL32.@) * * See CommConfigDialogA. */ BOOL WINAPI CommConfigDialogW( LPCWSTR lpszDevice, /* [in] name of communications device */ HWND hWnd, /* [in] parent window for the dialog */ LPCOMMCONFIG lpCommConfig) /* [out] pointer to struct to fill */ { DWORD (WINAPI *pCommConfigDialog)(LPCWSTR, HWND, LPCOMMCONFIG); HMODULE hConfigModule; DWORD res = ERROR_INVALID_PARAMETER; TRACE("(%s, %p, %p)\n", debugstr_w(lpszDevice), hWnd, lpCommConfig); hConfigModule = LoadLibraryW(lpszSerialUI); if (hConfigModule) { pCommConfigDialog = (void *)GetProcAddress(hConfigModule, "drvCommConfigDialogW"); if (pCommConfigDialog) { res = pCommConfigDialog(lpszDevice, hWnd, lpCommConfig); } FreeLibrary(hConfigModule); } if (res) SetLastError(res); return (res == ERROR_SUCCESS); } /*********************************************************************** * GetCommConfig (KERNEL32.@) * * Fill in the COMMCONFIG structure for the comm port hFile * * RETURNS * * TRUE on success, FALSE on failure * If successful, lpCommConfig contains the comm port configuration. * * BUGS * */ BOOL WINAPI GetCommConfig( HANDLE hFile, /* [in] The communications device. */ LPCOMMCONFIG lpCommConfig, /* [out] The communications configuration of the device (if it fits). */ LPDWORD lpdwSize) /* [in/out] Initially the size of the configuration buffer/structure, afterwards the number of bytes copied to the buffer or the needed size of the buffer. */ { BOOL r; TRACE("(%p, %p, %p) *lpdwSize: %u\n", hFile, lpCommConfig, lpdwSize, lpdwSize ? *lpdwSize : 0 ); if(lpCommConfig == NULL) return FALSE; r = *lpdwSize < sizeof(COMMCONFIG); /* TRUE if not enough space */ *lpdwSize = sizeof(COMMCONFIG); if(r) return FALSE; lpCommConfig->dwSize = sizeof(COMMCONFIG); lpCommConfig->wVersion = 1; lpCommConfig->wReserved = 0; r = GetCommState(hFile,&lpCommConfig->dcb); lpCommConfig->dwProviderSubType = PST_RS232; lpCommConfig->dwProviderOffset = 0; lpCommConfig->dwProviderSize = 0; return r; } /*********************************************************************** * SetCommConfig (KERNEL32.@) * * Sets the configuration of the communications device. * * RETURNS * * True on success, false if the handle was bad is not a communications device. */ BOOL WINAPI SetCommConfig( HANDLE hFile, /* [in] The communications device. */ LPCOMMCONFIG lpCommConfig, /* [in] The desired configuration. */ DWORD dwSize) /* [in] size of the lpCommConfig struct */ { TRACE("(%p, %p, %u)\n", hFile, lpCommConfig, dwSize); return SetCommState(hFile,&lpCommConfig->dcb); } /*********************************************************************** * SetDefaultCommConfigW (KERNEL32.@) * * Initializes the default configuration for a communication device. * * PARAMS * lpszDevice [I] Name of the device targeted for configuration * lpCommConfig [I] PTR to a buffer with the configuration for the device * dwSize [I] Number of bytes in the buffer * * RETURNS * Failure: FALSE * Success: TRUE, and default configuration saved * */ BOOL WINAPI SetDefaultCommConfigW(LPCWSTR lpszDevice, LPCOMMCONFIG lpCommConfig, DWORD dwSize) { BOOL (WINAPI *lpfnSetDefaultCommConfig)(LPCWSTR, LPCOMMCONFIG, DWORD); HMODULE hConfigModule; BOOL r = FALSE; TRACE("(%s, %p, %u)\n", debugstr_w(lpszDevice), lpCommConfig, dwSize); hConfigModule = LoadLibraryW(lpszSerialUI); if(!hConfigModule) return r; lpfnSetDefaultCommConfig = (void *)GetProcAddress(hConfigModule, "drvSetDefaultCommConfigW"); if (lpfnSetDefaultCommConfig) r = lpfnSetDefaultCommConfig(lpszDevice, lpCommConfig, dwSize); FreeLibrary(hConfigModule); return r; } /*********************************************************************** * SetDefaultCommConfigA (KERNEL32.@) * * Initializes the default configuration for a communication device. * * See SetDefaultCommConfigW. * */ BOOL WINAPI SetDefaultCommConfigA(LPCSTR lpszDevice, LPCOMMCONFIG lpCommConfig, DWORD dwSize) { BOOL r; LPWSTR lpDeviceW = NULL; DWORD len; TRACE("(%s, %p, %u)\n", debugstr_a(lpszDevice), lpCommConfig, dwSize); if (lpszDevice) { len = MultiByteToWideChar( CP_ACP, 0, lpszDevice, -1, NULL, 0 ); lpDeviceW = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) ); MultiByteToWideChar( CP_ACP, 0, lpszDevice, -1, lpDeviceW, len ); } r = SetDefaultCommConfigW(lpDeviceW,lpCommConfig,dwSize); HeapFree( GetProcessHeap(), 0, lpDeviceW ); return r; } /*********************************************************************** * GetDefaultCommConfigW (KERNEL32.@) * * Acquires the default configuration of the specified communication device. (unicode) * * RETURNS * * True on successful reading of the default configuration, * if the device is not found or the buffer is too small. */ BOOL WINAPI GetDefaultCommConfigW( LPCWSTR lpszName, /* [in] The unicode name of the device targeted for configuration. */ LPCOMMCONFIG lpCC, /* [out] The default configuration for the device. */ LPDWORD lpdwSize) /* [in/out] Initially the size of the default configuration buffer, afterwards the number of bytes copied to the buffer or the needed size of the buffer. */ { DWORD (WINAPI *pGetDefaultCommConfig)(LPCWSTR, LPCOMMCONFIG, LPDWORD); HMODULE hConfigModule; DWORD res = ERROR_INVALID_PARAMETER; TRACE("(%s, %p, %p) *lpdwSize: %u\n", debugstr_w(lpszName), lpCC, lpdwSize, lpdwSize ? *lpdwSize : 0 ); hConfigModule = LoadLibraryW(lpszSerialUI); if (hConfigModule) { pGetDefaultCommConfig = (void *)GetProcAddress(hConfigModule, "drvGetDefaultCommConfigW"); if (pGetDefaultCommConfig) { res = pGetDefaultCommConfig(lpszName, lpCC, lpdwSize); } FreeLibrary(hConfigModule); } if (res) SetLastError(res); return (res == ERROR_SUCCESS); } /************************************************************************** * GetDefaultCommConfigA (KERNEL32.@) * * Acquires the default configuration of the specified communication device. (ascii) * * RETURNS * * True on successful reading of the default configuration, * if the device is not found or the buffer is too small. */ BOOL WINAPI GetDefaultCommConfigA( LPCSTR lpszName, /* [in] The ascii name of the device targeted for configuration. */ LPCOMMCONFIG lpCC, /* [out] The default configuration for the device. */ LPDWORD lpdwSize) /* [in/out] Initially the size of the default configuration buffer, afterwards the number of bytes copied to the buffer or the needed size of the buffer. */ { BOOL ret = FALSE; UNICODE_STRING lpszNameW; TRACE("(%s, %p, %p) *lpdwSize: %u\n", debugstr_a(lpszName), lpCC, lpdwSize, lpdwSize ? *lpdwSize : 0 ); if(lpszName) RtlCreateUnicodeStringFromAsciiz(&lpszNameW,lpszName); else lpszNameW.Buffer = NULL; ret = GetDefaultCommConfigW(lpszNameW.Buffer,lpCC,lpdwSize); RtlFreeUnicodeString(&lpszNameW); return ret; }