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goma / wine / b54e9e94e98624acde1bb00e10c2055dfed9c2d7 / . / dlls / kernel / comm.c
blob: 36a0f03c34c71aa0a2fb990f580465f27e2e1bf2 [file] [log] [blame]
/*
* DEC 93 Erik Bos <erik@xs4all.nl>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif
#include <fcntl.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <errno.h>
#include <ctype.h>
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_SYS_MODEM_H
# include <sys/modem.h>
#endif
#ifdef HAVE_SYS_STRTIO_H
# include <sys/strtio.h>
#endif
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "wine/server.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#ifdef HAVE_LINUX_SERIAL_H
#include <linux/serial.h>
#endif
WINE_DEFAULT_DEBUG_CHANNEL(comm);
/* retrieve the Unix handle corresponding to a comm handle */
static int get_comm_fd( HANDLE handle, DWORD access )
{
int fd, ret;
ret = wine_server_handle_to_fd( handle, access, &fd, NULL );
if (ret) SetLastError( RtlNtStatusToDosError(ret) );
return fd;
}
/* release the Unix handle returned by get_comm_fd */
static inline void release_comm_fd( HANDLE handle, int fd )
{
wine_server_release_fd( handle, fd );
}
/* serial_irq_info
* local structure holding the irq values we need for WaitCommEvent()
*
* Stripped down from struct serial_icounter_struct, which may not be available on some systems
* As the modem line interrupts (cts, dsr, rng, dcd) only get updated with TIOCMIWAIT active,
* no need to carry them in the internal structure
*
*/
typedef struct serial_irq_info
{
int rx , tx, frame, overrun, parity, brk, buf_overrun;
}serial_irq_info;
/***********************************************************************
* Data needed by the thread polling for the changing CommEvent
*/
typedef struct async_commio
{
HANDLE handle;
char* buffer;
HANDLE hEvent;
DWORD evtmask;
DWORD mstat;
serial_irq_info irq_info;
} async_commio;
/***********************************************************************/
#if !defined(TIOCINQ) && defined(FIONREAD)
#define TIOCINQ FIONREAD
#endif
/***********************************************************************
* Get extended interrupt count info, needed for WaitCommEvent
*/
static int COMM_GetEInfo(int fd, serial_irq_info *irq_info)
{
#ifdef TIOCGICOUNT
struct serial_icounter_struct einfo;
if (!ioctl(fd,TIOCGICOUNT, &einfo))
{
irq_info->rx = einfo.rx;
irq_info->tx = einfo.tx;
irq_info->frame = einfo.frame;
irq_info->overrun = einfo.overrun;
irq_info->parity = einfo.parity;
irq_info->brk = einfo.brk;
irq_info->buf_overrun = einfo.buf_overrun;
return 0;
}
#endif
memset(irq_info,0, sizeof(serial_irq_info));
return -1;
}
static int COMM_WhackModem(int fd, unsigned int andy, unsigned int orrie)
{
#ifdef TIOCMGET
unsigned int mstat, okay;
okay = ioctl(fd, TIOCMGET, &mstat);
if (okay) return okay;
if (andy) mstat &= andy;
mstat |= orrie;
return ioctl(fd, TIOCMSET, &mstat);
#else
return 0;
#endif
}
/***********************************************************************
* 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);
/* 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) */
memcpy(&dcb, lpdcb, sizeof(DCB));
if(lptimeouts) memcpy(&timeouts, lptimeouts, sizeof(COMMTIMEOUTS));
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)
{
memcpy(lpdcb, &dcb, sizeof(DCB));
if(lptimeouts) memcpy(lptimeouts, &timeouts, sizeof(COMMTIMEOUTS));
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);
}
static BOOL COMM_SetCommError(HANDLE handle, DWORD error)
{
DWORD ret;
SERVER_START_REQ( set_serial_info )
{
req->handle = handle;
req->flags = SERIALINFO_SET_ERROR;
req->commerror = error;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
static BOOL COMM_GetCommError(HANDLE handle, LPDWORD lperror)
{
DWORD ret;
if(!lperror)
return FALSE;
SERVER_START_REQ( get_serial_info )
{
req->handle = handle;
ret = !wine_server_call_err( req );
*lperror = reply->commerror;
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* SetCommBreak (KERNEL32.@)
*
* Halts the transmission of characters to a communications device.
*
* 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) /* [in] The communications device to suspend. */
{
#if defined(TIOCSBRK) && defined(TIOCCBRK) /* check if available for compilation */
int fd,result;
fd = get_comm_fd( handle, FILE_READ_DATA );
if(fd<0) return FALSE;
result = ioctl(fd,TIOCSBRK,0);
release_comm_fd( handle, fd );
if (result ==-1)
{
TRACE("ioctl failed\n");
SetLastError(ERROR_NOT_SUPPORTED);
return FALSE;
}
return TRUE;
#else
FIXME("ioctl not available\n");
SetLastError(ERROR_NOT_SUPPORTED);
return FALSE;
#endif
}
/*****************************************************************************
* ClearCommBreak (KERNEL32.@)
*
* Resumes character transmission from a communication device.
*
* 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) /* [in] The halted communication device whose character transmission is to be resumed. */
{
#if defined(TIOCSBRK) && defined(TIOCCBRK) /* check if available for compilation */
int fd,result;
fd = get_comm_fd( handle, FILE_READ_DATA );
if(fd<0) return FALSE;
result = ioctl(fd,TIOCCBRK,0);
release_comm_fd( handle, fd );
if (result ==-1)
{
TRACE("ioctl failed\n");
SetLastError(ERROR_NOT_SUPPORTED);
return FALSE;
}
return TRUE;
#else
FIXME("ioctl not available\n");
SetLastError(ERROR_NOT_SUPPORTED);
return FALSE;
#endif
}
/*****************************************************************************
* EscapeCommFunction (KERNEL32.@)
*
* Directs a communication device to perform an extended function.
*
* 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, /* [in] The communication device to perform the extended function. */
UINT nFunction) /* [in] The extended function to be performed. */
{
int fd,direct=FALSE,result=FALSE;
struct termios port;
TRACE("handle %p, function=%d\n", handle, nFunction);
fd = get_comm_fd( handle, FILE_READ_DATA );
if(fd<0) return FALSE;
if (tcgetattr(fd,&port) == -1) {
COMM_SetCommError(handle,CE_IOE);
release_comm_fd( handle, fd );
return FALSE;
}
switch (nFunction) {
case RESETDEV:
TRACE("\n");
break;
case CLRDTR:
TRACE("CLRDTR\n");
#ifdef TIOCM_DTR
direct=TRUE;
result= COMM_WhackModem(fd, ~TIOCM_DTR, 0);
break;
#endif
case CLRRTS:
TRACE("CLRRTS\n");
#ifdef TIOCM_RTS
direct=TRUE;
result= COMM_WhackModem(fd, ~TIOCM_RTS, 0);
break;
#endif
case SETDTR:
TRACE("SETDTR\n");
#ifdef TIOCM_DTR
direct=TRUE;
result= COMM_WhackModem(fd, 0, TIOCM_DTR);
break;
#endif
case SETRTS:
TRACE("SETRTS\n");
#ifdef TIOCM_RTS
direct=TRUE;
result= COMM_WhackModem(fd, 0, TIOCM_RTS);
break;
#endif
case SETXOFF:
TRACE("SETXOFF\n");
port.c_iflag |= IXOFF;
break;
case SETXON:
TRACE("SETXON\n");
port.c_iflag |= IXON;
break;
case SETBREAK:
TRACE("setbreak\n");
#ifdef TIOCSBRK
direct=TRUE;
result = ioctl(fd,TIOCSBRK,0);
break;
#endif
case CLRBREAK:
TRACE("clrbreak\n");
#ifdef TIOCSBRK
direct=TRUE;
result = ioctl(fd,TIOCCBRK,0);
break;
#endif
default:
WARN("(handle=%p,nFunction=%d): Unknown function\n",
handle, nFunction);
break;
}
if (!direct)
if (tcsetattr(fd, TCSADRAIN, &port) == -1) {
release_comm_fd( handle, fd );
COMM_SetCommError(handle,CE_IOE);
return FALSE;
} else
result= TRUE;
else
{
if (result == -1)
{
result= FALSE;
COMM_SetCommError(handle,CE_IOE);
}
else
result = TRUE;
}
release_comm_fd( handle, fd );
return result;
}
/********************************************************************
* PurgeComm (KERNEL32.@)
*
* Terminates pending operations and/or discards buffers on a
* communication resource.
*
* RETURNS
*
* True on success and false if the communications handle is bad.
*/
BOOL WINAPI PurgeComm(
HANDLE handle, /* [in] The communication resource to be purged. */
DWORD flags) /* [in] Flags for clear pending/buffer on input/output. */
{
int fd;
TRACE("handle %p, flags %lx\n", handle, flags);
fd = get_comm_fd( handle, FILE_READ_DATA );
if(fd<0) return FALSE;
/*
** not exactly sure how these are different
** Perhaps if we had our own internal queues, one flushes them
** and the other flushes the kernel's buffers.
*/
if(flags&PURGE_TXABORT)
tcflush(fd,TCOFLUSH);
if(flags&PURGE_RXABORT)
tcflush(fd,TCIFLUSH);
if(flags&PURGE_TXCLEAR)
tcflush(fd,TCOFLUSH);
if(flags&PURGE_RXCLEAR)
tcflush(fd,TCIFLUSH);
release_comm_fd( handle, fd );
return 1;
}
/*****************************************************************************
* ClearCommError (KERNEL32.@)
*
* Enables further I/O operations on a communications resource after
* supplying error and current status information.
*
* RETURNS
*
* True on success, false if the communication resource handle is bad.
*/
BOOL WINAPI ClearCommError(
HANDLE handle, /* [in] The communication resource with the error. */
LPDWORD errors, /* [out] Flags indicating error the resource experienced. */
LPCOMSTAT lpStat) /* [out] The status of the communication resource. */
{
int fd;
fd=get_comm_fd( handle, FILE_READ_DATA );
if(0>fd) return FALSE;
if (lpStat)
{
lpStat->fCtsHold = 0;
lpStat->fDsrHold = 0;
lpStat->fRlsdHold = 0;
lpStat->fXoffHold = 0;
lpStat->fXoffSent = 0;
lpStat->fEof = 0;
lpStat->fTxim = 0;
lpStat->fReserved = 0;
#ifdef TIOCOUTQ
if(ioctl(fd, TIOCOUTQ, &lpStat->cbOutQue))
WARN("ioctl returned error\n");
#else
lpStat->cbOutQue = 0; /* FIXME: find a different way to find out */
#endif
#ifdef TIOCINQ
if(ioctl(fd, TIOCINQ, &lpStat->cbInQue))
WARN("ioctl returned error\n");
#endif
TRACE("handle %p cbInQue = %ld cbOutQue = %ld\n",
handle, lpStat->cbInQue, lpStat->cbOutQue);
}
release_comm_fd( handle, fd );
COMM_GetCommError(handle, errors);
COMM_SetCommError(handle, 0);
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.
*
* RETURNS
*
* True if successful, false if the communications resource handle is bad.
*
* BUGS
*
* Stub.
*/
BOOL WINAPI SetupComm(
HANDLE handle, /* [in] The just created communication resource handle. */
DWORD insize, /* [in] The suggested size of the communication resources input buffer in bytes. */
DWORD outsize) /* [in] The suggested size of the communication resources output buffer in bytes. */
{
int fd;
FIXME("insize %ld outsize %ld unimplemented stub\n", insize, outsize);
fd=get_comm_fd( handle, FILE_READ_DATA );
if(0>fd) return FALSE;
release_comm_fd( handle, fd );
return TRUE;
}
/*****************************************************************************
* GetCommMask (KERNEL32.@)
*
* Obtain the events associated with a communication device that will cause
* a call WaitCommEvent to return.
*
* RETURNS
*
* True on success, fail on bad device handle etc.
*/
BOOL WINAPI GetCommMask(
HANDLE handle, /* [in] The communications device. */
LPDWORD evtmask) /* [out] The events which cause WaitCommEvent to return. */
{
BOOL ret;
TRACE("handle %p, mask %p\n", handle, evtmask);
SERVER_START_REQ( get_serial_info )
{
req->handle = handle;
if ((ret = !wine_server_call_err( req )))
{
if (evtmask) *evtmask = reply->eventmask;
}
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* 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.)
*
* RETURNS
*
* True on success, false on bad handle etc.
*/
BOOL WINAPI SetCommMask(
HANDLE handle, /* [in] The communications device. */
DWORD evtmask) /* [in] The events that are to be monitored. */
{
BOOL ret;
TRACE("handle %p, mask %lx\n", handle, evtmask);
SERVER_START_REQ( set_serial_info )
{
req->handle = handle;
req->flags = SERIALINFO_SET_MASK;
req->eventmask = evtmask;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* SetCommState (KERNEL32.@)
*
* Re-initializes all hardware and control settings of a communications device,
* with values from a device control block without effecting the input and output
* queues.
*
* RETURNS
*
* True on success, false on failure eg if the XonChar is equal to the XoffChar.
*/
BOOL WINAPI SetCommState(
HANDLE handle, /* [in] The communications device. */
LPDCB lpdcb) /* [out] The device control block. */
{
struct termios port;
int fd, bytesize, stopbits;
BOOL ret;
TRACE("handle %p, ptr %p\n", handle, lpdcb);
TRACE("bytesize %d baudrate %ld 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("%s %s\n",(lpdcb->fInX)?"IXON":"~IXON",
(lpdcb->fOutX)?"IXOFF":"~IXOFF");
TRACE("fOutxCtsFlow %d fRtsControl %d\n", lpdcb->fOutxCtsFlow,
lpdcb->fRtsControl);
TRACE("fOutxDsrFlow %d fDtrControl%d\n", lpdcb->fOutxDsrFlow,
lpdcb->fDtrControl);
fd = get_comm_fd( handle, FILE_READ_DATA );
if (fd < 0) return FALSE;
if ((tcgetattr(fd,&port)) == -1) {
int save_error = errno;
COMM_SetCommError(handle,CE_IOE);
release_comm_fd( handle, fd );
ERR("tcgetattr error '%s'\n", strerror(save_error));
return FALSE;
}
port.c_cc[VMIN] = 0;
port.c_cc[VTIME] = 1;
#ifdef IMAXBEL
port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR|PARMRK|IMAXBEL);
#else
port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR|PARMRK);
#endif
port.c_iflag |= (IGNBRK);
port.c_oflag &= ~(OPOST);
port.c_cflag &= ~(HUPCL);
port.c_cflag |= CLOCAL | CREAD;
port.c_lflag &= ~(ICANON|ECHO|ISIG);
port.c_lflag |= NOFLSH;
#ifdef CBAUD
port.c_cflag &= ~CBAUD;
switch (lpdcb->BaudRate) {
case 0:
port.c_cflag |= B0;
break;
case 50:
port.c_cflag |= B50;
break;
case 75:
port.c_cflag |= B75;
break;
case 110:
case CBR_110:
port.c_cflag |= B110;
break;
case 134:
port.c_cflag |= B134;
break;
case 150:
port.c_cflag |= B150;
break;
case 200:
port.c_cflag |= B200;
break;
case 300:
case CBR_300:
port.c_cflag |= B300;
break;
case 600:
case CBR_600:
port.c_cflag |= B600;
break;
case 1200:
case CBR_1200:
port.c_cflag |= B1200;
break;
case 1800:
port.c_cflag |= B1800;
break;
case 2400:
case CBR_2400:
port.c_cflag |= B2400;
break;
case 4800:
case CBR_4800:
port.c_cflag |= B4800;
break;
case 9600:
case CBR_9600:
port.c_cflag |= B9600;
break;
case 19200:
case CBR_19200:
port.c_cflag |= B19200;
break;
case 38400:
case CBR_38400:
port.c_cflag |= B38400;
break;
#ifdef B57600
case 57600:
port.c_cflag |= B57600;
break;
#endif
#ifdef B115200
case 115200:
port.c_cflag |= B115200;
break;
#endif
#ifdef B230400
case 230400:
port.c_cflag |= B230400;
break;
#endif
#ifdef B460800
case 460800:
port.c_cflag |= B460800;
break;
#endif
default:
#if defined (HAVE_LINUX_SERIAL_H) && defined (TIOCSSERIAL)
{ struct serial_struct nuts;
int arby;
ioctl(fd, TIOCGSERIAL, &nuts);
nuts.custom_divisor = nuts.baud_base / lpdcb->BaudRate;
if (!(nuts.custom_divisor)) nuts.custom_divisor = 1;
arby = nuts.baud_base / nuts.custom_divisor;
nuts.flags &= ~ASYNC_SPD_MASK;
nuts.flags |= ASYNC_SPD_CUST;
WARN("You (or a program acting at your behest) have specified\n"
"a non-standard baud rate %ld. Wine will set the rate to %d,\n"
"which is as close as we can get by our present understanding of your\n"
"hardware. I hope you know what you are doing. Any disruption Wine\n"
"has caused to your linux system can be undone with setserial \n"
"(see man setserial). If you have incapacitated a Hayes type modem,\n"
"reset it and it will probably recover.\n", lpdcb->BaudRate, arby);
ioctl(fd, TIOCSSERIAL, &nuts);
port.c_cflag |= B38400;
}
break;
#endif /* Don't have linux/serial.h or lack TIOCSSERIAL */
COMM_SetCommError(handle,IE_BAUDRATE);
release_comm_fd( handle, fd );
ERR("baudrate %ld\n",lpdcb->BaudRate);
return FALSE;
}
#elif !defined(__EMX__)
switch (lpdcb->BaudRate) {
case 0:
port.c_ospeed = B0;
break;
case 50:
port.c_ospeed = B50;
break;
case 75:
port.c_ospeed = B75;
break;
case 110:
case CBR_110:
port.c_ospeed = B110;
break;
case 134:
port.c_ospeed = B134;
break;
case 150:
port.c_ospeed = B150;
break;
case 200:
port.c_ospeed = B200;
break;
case 300:
case CBR_300:
port.c_ospeed = B300;
break;
case 600:
case CBR_600:
port.c_ospeed = B600;
break;
case 1200:
case CBR_1200:
port.c_ospeed = B1200;
break;
case 1800:
port.c_ospeed = B1800;
break;
case 2400:
case CBR_2400:
port.c_ospeed = B2400;
break;
case 4800:
case CBR_4800:
port.c_ospeed = B4800;
break;
case 9600:
case CBR_9600:
port.c_ospeed = B9600;
break;
case 19200:
case CBR_19200:
port.c_ospeed = B19200;
break;
case 38400:
case CBR_38400:
port.c_ospeed = B38400;
break;
#ifdef B57600
case 57600:
case CBR_57600:
port.c_cflag |= B57600;
break;
#endif
#ifdef B115200
case 115200:
case CBR_115200:
port.c_cflag |= B115200;
break;
#endif
#ifdef B230400
case 230400:
port.c_cflag |= B230400;
break;
#endif
#ifdef B460800
case 460800:
port.c_cflag |= B460800;
break;
#endif
default:
COMM_SetCommError(handle,IE_BAUDRATE);
release_comm_fd( handle, fd );
ERR("baudrate %ld\n",lpdcb->BaudRate);
return FALSE;
}
port.c_ispeed = port.c_ospeed;
#endif
bytesize=lpdcb->ByteSize;
stopbits=lpdcb->StopBits;
#ifdef CMSPAR
port.c_cflag &= ~(PARENB | PARODD | CMSPAR);
#else
port.c_cflag &= ~(PARENB | PARODD);
#endif
if (lpdcb->fParity)
port.c_iflag |= INPCK;
else
port.c_iflag &= ~INPCK;
switch (lpdcb->Parity) {
case NOPARITY:
break;
case ODDPARITY:
port.c_cflag |= (PARENB | PARODD);
break;
case EVENPARITY:
port.c_cflag |= PARENB;
break;
#ifdef CMSPAR
/* Linux defines mark/space (stick) parity */
case MARKPARITY:
port.c_cflag |= (PARENB | CMSPAR);
break;
case SPACEPARITY:
port.c_cflag |= (PARENB | PARODD | CMSPAR);
break;
#else
/* try the POSIX way */
case MARKPARITY:
if( stopbits == ONESTOPBIT) {
stopbits = TWOSTOPBITS;
port.c_iflag &= ~INPCK;
} else {
COMM_SetCommError(handle,IE_BYTESIZE);
release_comm_fd( handle, fd );
ERR("Cannot set MARK Parity\n");
return FALSE;
}
break;
case SPACEPARITY:
if( bytesize < 8) {
bytesize +=1;
port.c_iflag &= ~INPCK;
} else {
COMM_SetCommError(handle,IE_BYTESIZE);
release_comm_fd( handle, fd );
ERR("Cannot set SPACE Parity\n");
return FALSE;
}
break;
#endif
default:
COMM_SetCommError(handle,IE_BYTESIZE);
release_comm_fd( handle, fd );
ERR("Parity\n");
return FALSE;
}
port.c_cflag &= ~CSIZE;
switch (bytesize) {
case 5:
port.c_cflag |= CS5;
break;
case 6:
port.c_cflag |= CS6;
break;
case 7:
port.c_cflag |= CS7;
break;
case 8:
port.c_cflag |= CS8;
break;
default:
COMM_SetCommError(handle,IE_BYTESIZE);
release_comm_fd( handle, fd );
ERR("ByteSize\n");
return FALSE;
}
switch (stopbits) {
case ONESTOPBIT:
port.c_cflag &= ~CSTOPB;
break;
case ONE5STOPBITS: /* will be selected if bytesize is 5 */
case TWOSTOPBITS:
port.c_cflag |= CSTOPB;
break;
default:
COMM_SetCommError(handle,IE_BYTESIZE);
release_comm_fd( handle, fd );
ERR("StopBits\n");
return FALSE;
}
#ifdef CRTSCTS
if ( lpdcb->fOutxCtsFlow ||
lpdcb->fRtsControl == RTS_CONTROL_HANDSHAKE
)
{
port.c_cflag |= CRTSCTS;
TRACE("CRTSCTS\n");
}
#endif
if (lpdcb->fInX)
port.c_iflag |= IXON;
else
port.c_iflag &= ~IXON;
if (lpdcb->fOutX)
port.c_iflag |= IXOFF;
else
port.c_iflag &= ~IXOFF;
if (tcsetattr(fd,TCSANOW,&port)==-1) { /* otherwise it hangs with pending input*/
ERR("tcsetattr error '%s'\n", strerror(errno));
COMM_SetCommError(handle,CE_IOE);
ret = FALSE;
} else {
COMM_SetCommError(handle,0);
ret = TRUE;
}
/* note: change DTR/RTS lines after setting the comm attributes,
* so flow control does not interfere. */
#ifdef TIOCM_DTR
if (lpdcb->fDtrControl == DTR_CONTROL_HANDSHAKE)
{
WARN("DSR/DTR flow control not supported\n");
} else if(lpdcb->fDtrControl == DTR_CONTROL_DISABLE)
COMM_WhackModem(fd, ~TIOCM_DTR, 0);
else
COMM_WhackModem(fd, 0, TIOCM_DTR);
#endif
#ifdef TIOCM_RTS
if(!lpdcb->fOutxCtsFlow )
{
if(lpdcb->fRtsControl == RTS_CONTROL_DISABLE)
COMM_WhackModem(fd, ~TIOCM_RTS, 0);
else
COMM_WhackModem(fd, 0, TIOCM_RTS);
}
#endif
if(lpdcb->fRtsControl == RTS_CONTROL_TOGGLE)
FIXME("RTS_CONTROL_TOGGLE is not supported.\n");
release_comm_fd( handle, fd );
return ret;
}
/*****************************************************************************
* GetCommState (KERNEL32.@)
*
* Fills in a device control block with information from a communications device.
*
* 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, /* [in] The communications device. */
LPDCB lpdcb) /* [out] The device control block. */
{
struct termios port;
int fd,speed;
int stat = DTR_CONTROL_ENABLE | RTS_CONTROL_ENABLE;
TRACE("handle %p, ptr %p\n", handle, lpdcb);
fd = get_comm_fd( handle, FILE_READ_DATA );
if (fd < 0) return FALSE;
if (tcgetattr(fd, &port) == -1) {
int save_error=errno;
ERR("tcgetattr error '%s'\n", strerror(save_error));
COMM_SetCommError(handle,CE_IOE);
release_comm_fd( handle, fd );
return FALSE;
}
#ifdef TIOCMGET
if (ioctl(fd, TIOCMGET, &stat) == -1)
{
int save_error=errno;
WARN("ioctl error '%s'\n", strerror(save_error));
stat = DTR_CONTROL_ENABLE | RTS_CONTROL_ENABLE;
}
#endif
release_comm_fd( handle, fd );
#ifndef __EMX__
#ifdef CBAUD
speed= (port.c_cflag & CBAUD);
#else
speed= (cfgetospeed(&port));
#endif
switch (speed) {
case B0:
lpdcb->BaudRate = 0;
break;
case B50:
lpdcb->BaudRate = 50;
break;
case B75:
lpdcb->BaudRate = 75;
break;
case B110:
lpdcb->BaudRate = 110;
break;
case B134:
lpdcb->BaudRate = 134;
break;
case B150:
lpdcb->BaudRate = 150;
break;
case B200:
lpdcb->BaudRate = 200;
break;
case B300:
lpdcb->BaudRate = 300;
break;
case B600:
lpdcb->BaudRate = 600;
break;
case B1200:
lpdcb->BaudRate = 1200;
break;
case B1800:
lpdcb->BaudRate = 1800;
break;
case B2400:
lpdcb->BaudRate = 2400;
break;
case B4800:
lpdcb->BaudRate = 4800;
break;
case B9600:
lpdcb->BaudRate = 9600;
break;
case B19200:
lpdcb->BaudRate = 19200;
break;
case B38400:
lpdcb->BaudRate = 38400;
break;
#ifdef B57600
case B57600:
lpdcb->BaudRate = 57600;
break;
#endif
#ifdef B115200
case B115200:
lpdcb->BaudRate = 115200;
break;
#endif
#ifdef B230400
case B230400:
lpdcb->BaudRate = 230400;
break;
#endif
#ifdef B460800
case B460800:
lpdcb->BaudRate = 460800;
break;
#endif
default:
ERR("unknown speed %x\n", speed);
}
#endif
switch (port.c_cflag & CSIZE) {
case CS5:
lpdcb->ByteSize = 5;
break;
case CS6:
lpdcb->ByteSize = 6;
break;
case CS7:
lpdcb->ByteSize = 7;
break;
case CS8:
lpdcb->ByteSize = 8;
break;
default:
ERR("unknown size %x\n", port.c_cflag & CSIZE);
}
if(port.c_iflag & INPCK)
lpdcb->fParity = TRUE;
else
lpdcb->fParity = FALSE;
#ifdef CMSPAR
switch (port.c_cflag & (PARENB | PARODD | CMSPAR))
#else
switch (port.c_cflag & (PARENB | PARODD))
#endif
{
case 0:
lpdcb->Parity = NOPARITY;
break;
case PARENB:
lpdcb->Parity = EVENPARITY;
break;
case (PARENB | PARODD):
lpdcb->Parity = ODDPARITY;
break;
#ifdef CMSPAR
case (PARENB | CMSPAR):
lpdcb->Parity = MARKPARITY;
break;
case (PARENB | PARODD | CMSPAR):
lpdcb->Parity = SPACEPARITY;
break;
#endif
}
if (port.c_cflag & CSTOPB)
if(lpdcb->ByteSize == 5)
lpdcb->StopBits = ONE5STOPBITS;
else
lpdcb->StopBits = TWOSTOPBITS;
else
lpdcb->StopBits = ONESTOPBIT;
lpdcb->fNull = 0;
lpdcb->fBinary = 1;
/* termios does not support DTR/DSR flow control */
lpdcb->fOutxDsrFlow = 0;
lpdcb->fDtrControl =
#ifdef TIOCM_DTR
!(stat & TIOCM_DTR) ? DTR_CONTROL_DISABLE:
#endif
DTR_CONTROL_ENABLE ;
#ifdef CRTSCTS
if (port.c_cflag & CRTSCTS) {
lpdcb->fRtsControl = RTS_CONTROL_HANDSHAKE;
lpdcb->fOutxCtsFlow = 1;
} else
#endif
{
lpdcb->fRtsControl =
#ifdef TIOCM_RTS
!(stat & TIOCM_RTS) ? RTS_CONTROL_DISABLE :
#endif
RTS_CONTROL_ENABLE ;
lpdcb->fOutxCtsFlow = 0;
}
if (port.c_iflag & IXON)
lpdcb->fInX = 1;
else
lpdcb->fInX = 0;
if (port.c_iflag & IXOFF)
lpdcb->fOutX = 1;
else
lpdcb->fOutX = 0;
/*
lpdcb->XonChar =
lpdcb->XoffChar =
*/
lpdcb->XonLim = 10;
lpdcb->XoffLim = 10;
COMM_SetCommError(handle,0);
TRACE("OK\n");
TRACE("bytesize %d baudrate %ld 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("%s %s\n",(lpdcb->fInX)?"IXON":"~IXON",
(lpdcb->fOutX)?"IXOFF":"~IXOFF");
TRACE("fOutxCtsFlow %d fRtsControl %d\n", lpdcb->fOutxCtsFlow,
lpdcb->fRtsControl);
TRACE("fOutxDsrFlow %d fDtrControl%d\n", lpdcb->fOutxDsrFlow,
lpdcb->fDtrControl);
#ifdef CRTSCTS
if ( lpdcb->fOutxCtsFlow ||
lpdcb->fRtsControl == RTS_CONTROL_HANDSHAKE
)
TRACE("CRTSCTS\n");
else
TRACE("~CRTSCTS\n");
#endif
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.
*
* 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.
*
* BUGS
*
* Stub.
*/
BOOL WINAPI TransmitCommChar(
HANDLE hComm, /* [in] The communication device in need of a command character. */
CHAR chTransmit) /* [in] The character to transmit. */
{
DWORD w;
WARN("(%p,'%c') not perfect!\n",hComm,chTransmit);
return WriteFile( hComm, &chTransmit, 1, &w, NULL );
}
/*****************************************************************************
* GetCommTimeouts (KERNEL32.@)
*
* Obtains the request timeout values for the communications device.
*
* RETURNS
*
* True on success, false if communications device handle is bad
* or the target structure is null.
*/
BOOL WINAPI GetCommTimeouts(
HANDLE hComm, /* [in] The communications device. */
LPCOMMTIMEOUTS lptimeouts) /* [out] The struct of request timeouts. */
{
BOOL ret;
TRACE("(%p,%p)\n",hComm,lptimeouts);
if(!lptimeouts)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
SERVER_START_REQ( get_serial_info )
{
req->handle = hComm;
if ((ret = !wine_server_call_err( req )))
{
lptimeouts->ReadIntervalTimeout = reply->readinterval;
lptimeouts->ReadTotalTimeoutMultiplier = reply->readmult;
lptimeouts->ReadTotalTimeoutConstant = reply->readconst;
lptimeouts->WriteTotalTimeoutMultiplier = reply->writemult;
lptimeouts->WriteTotalTimeoutConstant = reply->writeconst;
}
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* SetCommTimeouts (KERNEL32.@)
*
* Sets the timeouts used when reading and writing data to/from COMM ports.
*
* 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, /* [in] handle of COMM device */
LPCOMMTIMEOUTS lptimeouts) /* [in] pointer to COMMTIMEOUTS structure */
{
BOOL ret;
int fd;
struct termios tios;
TRACE("(%p,%p)\n",hComm,lptimeouts);
if(!lptimeouts)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
SERVER_START_REQ( set_serial_info )
{
req->handle = hComm;
req->flags = SERIALINFO_SET_TIMEOUTS;
req->readinterval = lptimeouts->ReadIntervalTimeout ;
req->readmult = lptimeouts->ReadTotalTimeoutMultiplier ;
req->readconst = lptimeouts->ReadTotalTimeoutConstant ;
req->writemult = lptimeouts->WriteTotalTimeoutMultiplier ;
req->writeconst = lptimeouts->WriteTotalTimeoutConstant ;
ret = !wine_server_call_err( req );
}
SERVER_END_REQ;
if (!ret) return FALSE;
/* FIXME: move this stuff to the server */
fd = get_comm_fd( hComm, FILE_READ_DATA );
if (fd < 0) return FALSE;
if (-1==tcgetattr(fd,&tios)) {
FIXME("tcgetattr on fd %d failed!\n",fd);
release_comm_fd( hComm, fd );
return FALSE;
}
/* VTIME is in 1/10 seconds */
{
unsigned int ux_timeout;
if(lptimeouts->ReadIntervalTimeout == 0) /* 0 means no timeout */
{
ux_timeout = 0;
}
else
{
ux_timeout = (lptimeouts->ReadIntervalTimeout+99)/100;
if(ux_timeout == 0)
{
ux_timeout = 1; /* must be at least some timeout */
}
}
tios.c_cc[VTIME] = ux_timeout;
}
if (-1==tcsetattr(fd,0,&tios)) {
FIXME("tcsetattr on fd %d failed!\n",fd);
release_comm_fd( hComm, fd );
return FALSE;
}
release_comm_fd( hComm, fd );
return TRUE;
}
/***********************************************************************
* GetCommModemStatus (KERNEL32.@)
*
* Obtains the four control register bits if supported by the hardware.
*
* RETURNS
*
* True if the communications handle was good and for hardware that
* control register access, false otherwise.
*/
BOOL WINAPI GetCommModemStatus(
HANDLE hFile, /* [in] The communications device. */
LPDWORD lpModemStat) /* [out] The control register bits. */
{
int fd,mstat, result=FALSE;
*lpModemStat=0;
#ifdef TIOCMGET
fd = get_comm_fd( hFile, FILE_READ_DATA );
if(fd<0)
return FALSE;
result = ioctl(fd, TIOCMGET, &mstat);
release_comm_fd( hFile, fd );
if (result == -1)
{
WARN("ioctl failed\n");
return FALSE;
}
#ifdef TIOCM_CTS
if (mstat & TIOCM_CTS)
*lpModemStat |= MS_CTS_ON;
#endif
#ifdef TIOCM_DSR
if (mstat & TIOCM_DSR)
*lpModemStat |= MS_DSR_ON;
#endif
#ifdef TIOCM_RNG
if (mstat & TIOCM_RNG)
*lpModemStat |= MS_RING_ON;
#endif
#ifdef TIOCM_CAR
/*FIXME: Not really sure about RLSD UB 990810*/
if (mstat & TIOCM_CAR)
*lpModemStat |= MS_RLSD_ON;
#endif
TRACE("%04x -> %s%s%s%s\n", mstat,
(*lpModemStat &MS_RLSD_ON)?"MS_RLSD_ON ":"",
(*lpModemStat &MS_RING_ON)?"MS_RING_ON ":"",
(*lpModemStat &MS_DSR_ON)?"MS_DSR_ON ":"",
(*lpModemStat &MS_CTS_ON)?"MS_CTS_ON ":"");
return TRUE;
#else
return FALSE;
#endif
}
static DWORD WINAPI Comm_CheckEvents(int fd, DWORD mask, serial_irq_info *new, serial_irq_info *old, DWORD new_mstat, DWORD old_mstat)
{
DWORD ret = 0, queue;
TRACE("mask 0x%08lx\n", mask);
TRACE("old->rx 0x%08x vs. new->rx 0x%08x\n", old->rx, new->rx);
TRACE("old->tx 0x%08x vs. new->tx 0x%08x\n", old->tx, new->tx);
TRACE("old->frame 0x%08x vs. new->frame 0x%08x\n", old->frame, new->frame);
TRACE("old->overrun 0x%08x vs. new->overrun 0x%08x\n", old->overrun, new->overrun);
TRACE("old->parity 0x%08x vs. new->parity 0x%08x\n", old->parity, new->parity);
TRACE("old->brk 0x%08x vs. new->brk 0x%08x\n", old->brk, new->brk);
TRACE("old->buf_overrun 0x%08x vs. new->buf_overrun 0x%08x\n", old->buf_overrun, new->buf_overrun);
ret |= ((mask & EV_BREAK) && ( old->brk != new->brk))?EV_BREAK:0;
ret |= ((mask & EV_CTS ) && ((old_mstat&MS_CTS_ON )!=(new_mstat&MS_CTS_ON )))?EV_CTS :0;
ret |= ((mask & EV_DSR ) && ((old_mstat&MS_DSR_ON )!=(new_mstat&MS_DSR_ON )))?EV_DSR :0;
ret |= ((mask & EV_RING ) && ((old_mstat&MS_RING_ON)!=(new_mstat&MS_RING_ON)))?EV_RING :0;
ret |= ((mask & EV_RLSD ) && ((old_mstat&MS_RLSD_ON)!=(new_mstat&MS_RLSD_ON)))?EV_RLSD :0;
ret |= ((mask & EV_ERR ) && (( old->frame != new->frame) ||(old->overrun != new->overrun)
|| (old->parity != new->parity)) )?EV_ERR :0;
if (mask & EV_RXCHAR)
{
queue = 0;
#ifdef TIOCINQ
if(ioctl(fd, TIOCINQ, &queue))
WARN("TIOCINQ returned error\n");
#endif
if (queue)
ret |= EV_RXCHAR;
}
if (mask & EV_TXEMPTY)
{
queue = 0;
/* We really want to know when all characters have gone out of the transmitter */
#if defined(TIOCSERGETLSR)
if(ioctl(fd, TIOCSERGETLSR, &queue))
WARN("TIOCSERGETLSR returned error\n");
if (queue)
/* TIOCINQ only checks for an empty buffer */
#elif defined(TIOCINQ)
if(ioctl(fd, TIOCOUTQ, &queue))
WARN("TIOCOUTQ returned error\n");
if (!queue)
#endif
ret |= EV_TXEMPTY;
}
TRACE("OUTQUEUE %ld, Transmitter %sempty\n", queue, (ret & EV_TXEMPTY)?"":"not ");
return ret;
}
/***********************************************************************
* COMM_WaitCommEventService (INTERNAL)
*
* We need to poll for what is interesting
* TIOCMIWAIT only checks modem status line and may not be aborted by a changing mask
*
*/
static DWORD WINAPI COMM_WaitCommEventService(LPVOID arg)
{
async_commio *commio = (async_commio*) arg;
int waitmask = 0;
int rc, fd, abort;
serial_irq_info new_irq_info;
DWORD new_mstat, new_evtmask;
fd=get_comm_fd( commio->handle, FILE_READ_DATA );
TRACE("handle %p fd 0x%08x, mask 0x%08lx buffer %p event %p irq_info %p waitmask 0x%08x\n",
commio->handle, fd, commio->evtmask, commio->buffer, commio->hEvent, &commio->irq_info, waitmask);
do
{
/*
* TIOCMIWAIT is not adequate
*
* FIXME:
* We don't handle the EV_RXFLAG (the eventchar)
*/
Sleep(1);
rc= COMM_GetEInfo(fd,&new_irq_info);
if (rc)
TRACE("TIOCGICOUNT err %s\n", strerror(errno));
rc = GetCommModemStatus(commio->handle, &new_mstat);
if (!rc)
TRACE("GetCommModemStatus failed\n");
rc = Comm_CheckEvents(fd, commio->evtmask,&new_irq_info,&commio->irq_info, new_mstat, commio->mstat);
GetCommMask(commio->handle, &new_evtmask);
abort = (commio->evtmask != new_evtmask);
TRACE("resulting Eventmask 0x%08x\n", rc);
} while (!rc && ! abort);
if (abort) rc = 0;
release_comm_fd( commio->handle, fd );
*commio->buffer = rc;
if (commio->hEvent != INVALID_HANDLE_VALUE )
NtSetEvent( commio->hEvent, NULL );
HeapFree(GetProcessHeap(), 0, commio );
return 0;
}
/***********************************************************************
* COMM_WaitCommEvent (INTERNAL)
*
* This function must have an lpOverlapped.
*/
static BOOL COMM_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 */
{
int fd;
async_commio* commio;
DWORD result_mask;
BOOL res;
if (!lpOverlapped)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (NtResetEvent(lpOverlapped->hEvent,NULL))
return FALSE;
fd = get_comm_fd( hFile, FILE_WRITE_DATA );
if (fd < 0) return FALSE;
commio = HeapAlloc(GetProcessHeap(), 0, sizeof (async_commio));
if (!commio)
{
release_comm_fd( hFile, fd );
return FALSE;
}
commio->handle = hFile;
commio->buffer = (char *)lpdwEvents;
commio->hEvent = lpOverlapped->hEvent;
GetCommMask(hFile, &commio->evtmask);
/* We may never return, if some capabilities miss
* Return error in that case
*/
#if !defined(TIOCINQ)
if(commio->evtmask & EV_RXCHAR)
goto error;
#endif
#if !(defined(TIOCSERGETLSR) && defined(TIOCSER_TEMT)) || !defined(TIOCINQ)
if(commio->evtmask & EV_TXEMPTY)
goto error;
#endif
#if !defined(TIOCMGET)
if(commio->evtmask & (EV_CTS | EV_DSR| EV_RING| EV_RLSD))
goto error;
#endif
#if !defined(TIOCM_CTS)
if(commio->evtmask & EV_CTS)
goto error;
#endif
#if !defined(TIOCM_DSR)
if(commio->evtmask & EV_DSR)
goto error;
#endif
#if !defined(TIOCM_RNG)
if(commio->evtmask & EV_RING)
goto error;
#endif
#if !defined(TIOCM_CAR)
if(commio->evtmask & EV_RLSD)
goto error;
#endif
if(commio->evtmask & EV_RXFLAG)
FIXME("EV_RXFLAG not handled\n");
COMM_GetEInfo(fd,&commio->irq_info);
GetCommModemStatus(hFile, &commio->mstat);
/* We might have received something or the TX bufffer is delivered*/
result_mask = Comm_CheckEvents( fd, commio->evtmask, &commio->irq_info, &commio->irq_info,commio->mstat,commio->mstat);
if (result_mask)
{
TRACE("Event already met\n");
*lpdwEvents = result_mask;
HeapFree(GetProcessHeap(), 0, commio );
res = TRUE;
}
else
{
CreateThread(NULL, 0, COMM_WaitCommEventService, (LPVOID)commio, 0, NULL);
SetLastError(ERROR_IO_PENDING);
res = FALSE;
}
release_comm_fd( hFile, fd );
return res;
#if !defined(TIOCINQ) || (!(defined(TIOCSERGETLSR) && defined(TIOCSER_TEMT)) || !defined(TIOCINQ)) || !defined(TIOCMGET) || !defined(TIOCM_CTS) ||!defined(TIOCM_DSR) || !defined(TIOCM_RNG) || !defined(TIOCM_CAR)
error:
FIXME("Returning error because of missing capabilities\n");
release_comm_fd( hFile, fd );
HeapFree(GetProcessHeap(), 0, commio );
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
#endif
}
/***********************************************************************
* 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 */
{
OVERLAPPED ov;
int ret = 0;
DWORD res, err;
TRACE("(%p %p %p )\n",hFile, lpdwEvents,lpOverlapped);
if(lpOverlapped)
return COMM_WaitCommEvent(hFile, lpdwEvents, lpOverlapped);
/* if there is no overlapped structure, create our own */
ov.hEvent = CreateEventW(NULL,FALSE,FALSE,NULL);
res = COMM_WaitCommEvent(hFile, lpdwEvents, &ov);
err = GetLastError();
if (!res)
{
if (err == ERROR_IO_PENDING)
{
do
{
res = WaitForSingleObjectEx(ov.hEvent, INFINITE, FALSE);
} while (res != WAIT_OBJECT_0);
TRACE("Event met\n:");
ret = TRUE;
}
else
{
FIXME("Unknown error 0x%08lx\n", err);
ret = FALSE;
}
}
else
ret = TRUE;
CloseHandle(ov.hEvent);
return ret;
}
/***********************************************************************
* 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 */
{
FIXME("(%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->dwReserved1 = 0;
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 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 */
{
FARPROC lpfnCommDialog;
HMODULE hConfigModule;
BOOL r = FALSE;
TRACE("(%p %p %p)\n",lpszDevice, hWnd, lpCommConfig);
hConfigModule = LoadLibraryW(lpszSerialUI);
if(!hConfigModule)
return FALSE;
lpfnCommDialog = GetProcAddress(hConfigModule, "drvCommConfigDialogA");
if(lpfnCommDialog)
r = lpfnCommDialog(lpszDevice,hWnd,lpCommConfig);
FreeLibrary(hConfigModule);
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 */
{
FARPROC lpfnCommDialog;
HMODULE hConfigModule;
BOOL r = FALSE;
TRACE("(%p %p %p)\n",lpszDevice, hWnd, lpCommConfig);
hConfigModule = LoadLibraryW(lpszSerialUI);
if(!hConfigModule)
return FALSE;
lpfnCommDialog = GetProcAddress(hConfigModule, "drvCommConfigDialogW");
if(lpfnCommDialog)
r = lpfnCommDialog(lpszDevice,hWnd,lpCommConfig);
FreeLibrary(hConfigModule);
return r;
}
/***********************************************************************
* 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)\n",hFile,lpCommConfig);
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)\n",hFile,lpCommConfig);
return SetCommState(hFile,&lpCommConfig->dcb);
}
/***********************************************************************
* SetDefaultCommConfigA (KERNEL32.@)
*
* Initializes the default configuration for the specified communication
* device. (ascii)
*
* RETURNS
*
* True if the device was found and the defaults set, false otherwise
*/
BOOL WINAPI SetDefaultCommConfigW(
LPCWSTR lpszDevice, /* [in] The ascii name of the device targeted for configuration. */
LPCOMMCONFIG lpCommConfig, /* [in] The default configuration for the device. */
DWORD dwSize) /* [in] The number of bytes in the configuration structure. */
{
FARPROC lpfnSetDefaultCommConfig;
HMODULE hConfigModule;
BOOL r = FALSE;
TRACE("(%p %p %lx)\n",lpszDevice, lpCommConfig, dwSize);
hConfigModule = LoadLibraryW(lpszSerialUI);
if(!hConfigModule)
return r;
lpfnSetDefaultCommConfig = GetProcAddress(hConfigModule, "drvSetDefaultCommConfigW");
if (lpfnSetDefaultCommConfig)
r = lpfnSetDefaultCommConfig(lpszDevice, lpCommConfig, dwSize);
FreeLibrary(hConfigModule);
return r;
}
/***********************************************************************
* SetDefaultCommConfigW (KERNEL32.@)
*
* Initializes the default configuration for the specified
* communication device. (unicode)
*
* RETURNS
*
*/
BOOL WINAPI SetDefaultCommConfigA(
LPCSTR lpszDevice, /* [in] The unicode name of the device targeted for configuration. */
LPCOMMCONFIG lpCommConfig, /* [in] The default configuration for the device. */
DWORD dwSize) /* [in] The number of bytes in the configuration structure. */
{
BOOL r;
LPWSTR lpDeviceW = NULL;
DWORD len;
TRACE("(%s %p %lx)\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. */
{
LPDCB lpdcb = &(lpCC->dcb);
WCHAR temp[40];
static const WCHAR comW[] = {'C','O','M',0};
static const WCHAR formatW[] = {'C','O','M','%','c',':','3','8','4','0','0',',','n',',','8',',','1',0};
if (strncmpiW(lpszName,comW,3)) {
ERR("not implemented for <%s>\n", debugstr_w(lpszName));
return FALSE;
}
TRACE("(%s %p %ld)\n", debugstr_w(lpszName), lpCC, *lpdwSize );
if (*lpdwSize < sizeof(COMMCONFIG)) {
*lpdwSize = sizeof(COMMCONFIG);
return FALSE;
}
*lpdwSize = sizeof(COMMCONFIG);
lpCC->dwSize = sizeof(COMMCONFIG);
lpCC->wVersion = 1;
lpCC->dwProviderSubType = PST_RS232;
lpCC->dwProviderOffset = 0L;
lpCC->dwProviderSize = 0L;
sprintfW( temp, formatW, lpszName[3]);
FIXME("setting %s as default\n", debugstr_w(temp));
return BuildCommDCBW( temp, lpdcb);
}
/**************************************************************************
* 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,%ld)\n",lpszName,lpCC,*lpdwSize);
if(lpszName) RtlCreateUnicodeStringFromAsciiz(&lpszNameW,lpszName);
else lpszNameW.Buffer = NULL;
if(lpszNameW.Buffer) ret = GetDefaultCommConfigW(lpszNameW.Buffer,lpCC,lpdwSize);
RtlFreeUnicodeString(&lpszNameW);
return ret;
}