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Update the modemn status bit that indicates whether the RLSD line is 

active in every call to GetCommError(). This is not the proper place,
but since wine doesn't do any event-stuff...
Fixed some TRACE call's faced with non zero terminated strings.
Restore the terminal state at CloseCommt to the state it was at
OpenComm(), so the modem will go off-hook.
This commit is contained in:
Rein Klazes 1998-10-11 14:02:09 +00:00 committed by Alexandre Julliard
parent d235b137a8
commit cd7986ba01
1 changed files with 38 additions and 9 deletions
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47
misc/comm.c
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@ -32,6 +32,11 @@
* Sorry for the rather chatty explanation - but I think comm.c needs to be
* redefined with real working buffers make it work; maybe these comments are
* of help.
* Oktober 98, Rein Klazes [RHK]
* A program that wants to monitor the modem status line (RLSD/DCD) may
* poll the modem status register in the commMask structure. I update the bit
* in GetCommError, waiting for an implementation of communication events.
*
*/
#include "config.h"
@ -67,7 +72,7 @@
#ifndef TIOCINQ
#define TIOCINQ FIONREAD
#endif
#define msr 35 /* offset in unknown structure commMask */
#define COMM_MSR_OFFSET 35 /* see knowledge base Q101417 */
/*
* [RER] These are globals are wrong. They should be in DosDeviceStruct
* on a per port basis.
@ -84,7 +89,10 @@ int iGlobalOutQueueFiller;
struct DosDeviceStruct COM[MAX_PORTS];
struct DosDeviceStruct LPT[MAX_PORTS];
/* pointers to unknown(==undocumented) comm structure */
LPCVOID *unknown[MAX_PORTS];
/* save terminal states */
static struct termios m_stat[MAX_PORTS];
void COMM_Init(void)
{
@ -488,6 +496,8 @@ INT16 WINAPI OpenComm(LPCSTR device,UINT16 cbInQueue,UINT16 cbOutQueue)
unknown[port] = SEGPTR_ALLOC(40);
bzero(unknown[port],40);
COM[port].fd = fd;
/* save terminal state */
tcgetattr(fd,&m_stat[port]);
return fd;
}
}
@ -522,6 +532,7 @@ INT16 WINAPI OpenComm(LPCSTR device,UINT16 cbInQueue,UINT16 cbOutQueue)
INT16 WINAPI CloseComm(INT16 fd)
{
int port;
TRACE(comm,"fd %d\n", fd);
if ((port = GetCommPort(fd)) !=-1) { /* [LW] */
SEGPTR_FREE(unknown[port]);
@ -531,6 +542,9 @@ INT16 WINAPI CloseComm(INT16 fd)
return -1;
}
/* reset modem lines */
tcsetattr(fd,TCSANOW,&m_stat[port]);
if (close(fd) == -1) {
commerror = WinError();
return -1;
@ -805,6 +819,20 @@ INT16 WINAPI GetCommError(INT16 fd,LPCOMSTAT lpStat)
unsigned long cnt;
int rc;
unsigned char *stol;
int act;
unsigned int mstat;
if ((act = GetCommPort(fd)) == -1) {
WARN(comm," fd %d not comm port\n",act);
return CE_MODE;
}
stol = (unsigned char *)unknown[act] + COMM_MSR_OFFSET;
ioctl(fd,TIOCMGET,&mstat);
if( mstat&TIOCM_CAR )
*stol |= 0x80;
else
*stol &=0x7f;
if (lpStat) {
lpStat->status = 0;
@ -816,13 +844,13 @@ INT16 WINAPI GetCommError(INT16 fd,LPCOMSTAT lpStat)
if (rc) WARN(comm, "Error !\n");
lpStat->cbInQue = cnt;
TRACE(comm, "fd %d, error %d, lpStat %d %d %d\n",
TRACE(comm, "fd %d, error %d, lpStat %d %d %d stol %x\n",
fd, commerror, lpStat->status, lpStat->cbInQue,
lpStat->cbOutQue);
lpStat->cbOutQue, *stol);
}
else
TRACE(comm, "fd %d, error %d, lpStat NULL\n",
fd, commerror);
TRACE(comm, "fd %d, error %d, lpStat NULL stol %x\n",
fd, commerror, *stol);
/*
* [RER] I have no idea what the following is trying to accomplish.
@ -860,9 +888,10 @@ SEGPTR WINAPI SetCommEventMask(INT16 fd,UINT16 fuEvtMask)
eventmask |= fuEvtMask;
if ((act = GetCommPort(fd)) == -1) {
WARN(comm," fd %d not comm port\n",act);
return NULL;}
return SEGPTR_GET(NULL);
}
stol = (unsigned char *)unknown[act];
stol += msr;
stol += COMM_MSR_OFFSET;
repid = ioctl(fd,TIOCMGET,&mstat);
TRACE(comm, " ioctl %d, msr %x at %p %p\n",repid,mstat,stol,unknown[act]);
if ((mstat&TIOCM_CAR)) {*stol |= 0x80;}
@ -1718,7 +1747,7 @@ INT16 WINAPI ReadComm(INT16 fd,LPSTR lpvBuf,INT16 cbRead)
return length;
}
} else {
TRACE(comm,"%*s\n", length+status, lpvBuf);
TRACE(comm,"%.*s\n", length+status, lpvBuf);
commerror = 0;
return length + status;
}
@ -1744,7 +1773,7 @@ INT16 WINAPI WriteComm(INT16 fd, LPSTR lpvBuf, INT16 cbWrite)
return -1;
}
TRACE(comm,"%*s\n", cbWrite, lpvBuf );
TRACE(comm,"%.*s\n", cbWrite, lpvBuf );
length = write(fd, (void *) lpvBuf, cbWrite);
if (length == -1) {