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Sweden-Number/dlls/kernel/comm.c

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/*
* DEC 93 Erik Bos <erik@xs4all.nl>
*
* Copyright 1996 Marcus Meissner
*
* Mar 31, 1999. Ove Kåven <ovek@arcticnet.no>
* - Implemented buffers and EnableCommNotification.
*
* Apr 3, 1999. Lawson Whitney <lawson_whitney@juno.com>
* - Fixed the modem control part of EscapeCommFunction16.
*
* Mar 3, 1999. Ove Kåven <ovek@arcticnet.no>
* - Use port indices instead of unixfds for win16
* - Moved things around (separated win16 and win32 routines)
* - Added some hints on how to implement buffers and EnableCommNotification.
*
* May 26, 1997. Fixes and comments by Rick Richardson <rick@dgii.com> [RER]
* - ptr->fd wasn't getting cleared on close.
* - GetCommEventMask() and GetCommError() didn't do much of anything.
* IMHO, they are still wrong, but they at least implement the RXCHAR
* event and return I/O queue sizes, which makes the app I'm interested
* in (analog devices EZKIT DSP development system) work.
*
* August 12, 1997. Take a bash at SetCommEventMask - Lawson Whitney
* <lawson_whitney@juno.com>
* July 6, 1998. Fixes and comments by Valentijn Sessink
* <vsessink@ic.uva.nl> [V]
* 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"
#include <stdlib.h>
#include <stdio.h>
#include <termios.h>
#include <fcntl.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <errno.h>
#include <ctype.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#include <sys/ioctl.h>
#include <unistd.h>
#include <sys/poll.h>
#include "windef.h"
#ifdef HAVE_SYS_MODEM_H
# include <sys/modem.h>
#endif
#ifdef HAVE_SYS_STRTIO_H
# include <sys/strtio.h>
#endif
#include "heap.h"
#include "options.h"
#include "wine/port.h"
#include "server.h"
#include "winerror.h"
#include "services.h"
#include "callback.h"
#include "file.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(comm);
#if !defined(TIOCINQ) && defined(FIONREAD)
#define TIOCINQ FIONREAD
#endif
/* window's semi documented modem status register */
#define COMM_MSR_OFFSET 35
#define MSR_CTS 0x10
#define MSR_DSR 0x20
#define MSR_RI 0x40
#define MSR_RLSD 0x80
#define MSR_MASK (MSR_CTS|MSR_DSR|MSR_RI|MSR_RLSD)
#define FLAG_LPT 0x80
#ifdef linux
#define CMSPAR 0x40000000 /* stick parity */
#endif
#define MAX_PORTS 9
struct DosDeviceStruct {
char *devicename; /* /dev/ttyS0 */
int fd;
int suspended;
int unget,xmit;
int baudrate;
int evtchar;
/* events */
int commerror, eventmask;
/* buffers */
char *inbuf,*outbuf;
unsigned ibuf_size,ibuf_head,ibuf_tail;
unsigned obuf_size,obuf_head,obuf_tail;
/* notifications */
int wnd, n_read, n_write;
HANDLE s_read, s_write;
};
static struct DosDeviceStruct COM[MAX_PORTS];
static struct DosDeviceStruct LPT[MAX_PORTS];
/* pointers to unknown(==undocumented) comm structure */
static LPCVOID *unknown[MAX_PORTS];
/* save terminal states */
static struct termios m_stat[MAX_PORTS];
/* update window's semi documented modem status register */
/* see knowledge base Q101417 */
static void COMM_MSRUpdate( UCHAR * pMsr, unsigned int mstat)
{
UCHAR tmpmsr=0;
#ifdef TIOCM_CTS
if(mstat & TIOCM_CTS) tmpmsr |= MSR_CTS;
#endif
#ifdef TIOCM_DSR
if(mstat & TIOCM_DSR) tmpmsr |= MSR_DSR;
#endif
#ifdef TIOCM_RI
if(mstat & TIOCM_RI) tmpmsr |= MSR_RI;
#endif
#ifdef TIOCM_CAR
if(mstat & TIOCM_CAR) tmpmsr |= MSR_RLSD;
#endif
*pMsr = (*pMsr & ~MSR_MASK) | tmpmsr;
}
void COMM_Init(void)
{
int x;
char option[10], temp[256], *btemp;
struct stat st;
for (x=0; x!=MAX_PORTS; x++) {
strcpy(option,"COMx");
option[3] = '1' + x;
option[4] = '\0';
PROFILE_GetWineIniString( "serialports", option, "*",
temp, sizeof(temp) );
if (!strcmp(temp, "*") || *temp == '\0')
COM[x].devicename = NULL;
else {
btemp = strchr(temp,',');
if (btemp != NULL) {
*btemp++ = '\0';
COM[x].baudrate = atoi(btemp);
} else {
COM[x].baudrate = -1;
}
stat(temp, &st);
if (!S_ISCHR(st.st_mode))
WARN("Can't use `%s' as %s !\n", temp, option);
else
if ((COM[x].devicename = malloc(strlen(temp)+1)) == NULL)
WARN("Can't malloc for device info!\n");
else {
COM[x].fd = 0;
strcpy(COM[x].devicename, temp);
}
TRACE("%s = %s\n", option, COM[x].devicename);
}
strcpy(option, "LPTx");
option[3] = '1' + x;
option[4] = '\0';
PROFILE_GetWineIniString( "parallelports", option, "*",
temp, sizeof(temp) );
if (!strcmp(temp, "*") || *temp == '\0')
LPT[x].devicename = NULL;
else {
stat(temp, &st);
if (!S_ISCHR(st.st_mode))
WARN("Can't use `%s' as %s !\n", temp, option);
else
if ((LPT[x].devicename = malloc(strlen(temp)+1)) == NULL)
WARN("Can't malloc for device info!\n");
else {
LPT[x].fd = 0;
strcpy(LPT[x].devicename, temp);
}
TRACE("%s = %s\n", option, LPT[x].devicename);
}
}
}
static struct DosDeviceStruct *GetDeviceStruct(int fd)
{
if ((fd&0x7F)<=MAX_PORTS) {
if (!(fd&FLAG_LPT)) {
if (COM[fd].fd)
return &COM[fd];
} else {
fd &= 0x7f;
if (LPT[fd].fd)
return &LPT[fd];
}
}
return NULL;
}
static int GetCommPort_fd(int fd)
{
int x;
for (x=0; x<MAX_PORTS; x++) {
if (COM[x].fd == fd)
return x;
}
return -1;
}
static int ValidCOMPort(int x)
{
return(x < MAX_PORTS ? (int) COM[x].devicename : 0);
}
static int ValidLPTPort(int x)
{
return(x < MAX_PORTS ? (int) LPT[x].devicename : 0);
}
static int WinError(void)
{
TRACE("errno = %d\n", errno);
switch (errno) {
default:
return CE_IOE;
}
}
static unsigned comm_inbuf(struct DosDeviceStruct *ptr)
{
return ((ptr->ibuf_tail > ptr->ibuf_head) ? ptr->ibuf_size : 0)
+ ptr->ibuf_head - ptr->ibuf_tail;
}
static unsigned comm_outbuf(struct DosDeviceStruct *ptr)
{
return ((ptr->obuf_tail > ptr->obuf_head) ? ptr->obuf_size : 0)
+ ptr->obuf_head - ptr->obuf_tail;
}
static int COMM_WhackModem(int fd, unsigned int andy, unsigned int orrie)
{
unsigned int mstat, okay;
okay = ioctl(fd, TIOCMGET, &mstat);
if (okay) return okay;
if (andy) mstat &= andy;
mstat |= orrie;
return ioctl(fd, TIOCMSET, &mstat);
}
static void CALLBACK comm_notification( ULONG_PTR private )
{
struct DosDeviceStruct *ptr = (struct DosDeviceStruct *)private;
int prev, bleft, len;
WORD mask = 0;
int cid = GetCommPort_fd(ptr->fd);
TRACE("async notification\n");
/* read data from comm port */
prev = comm_inbuf(ptr);
do {
bleft = ((ptr->ibuf_tail > ptr->ibuf_head) ? (ptr->ibuf_tail-1) : ptr->ibuf_size)
- ptr->ibuf_head;
len = read(ptr->fd, ptr->inbuf + ptr->ibuf_head, bleft?bleft:1);
if (len > 0) {
if (!bleft) {
ptr->commerror = CE_RXOVER;
} else {
/* check for events */
if ((ptr->eventmask & EV_RXFLAG) &&
memchr(ptr->inbuf + ptr->ibuf_head, ptr->evtchar, len)) {
*(WORD*)(unknown[cid]) |= EV_RXFLAG;
mask |= CN_EVENT;
}
if (ptr->eventmask & EV_RXCHAR) {
*(WORD*)(unknown[cid]) |= EV_RXCHAR;
mask |= CN_EVENT;
}
/* advance buffer position */
ptr->ibuf_head += len;
if (ptr->ibuf_head >= ptr->ibuf_size)
ptr->ibuf_head = 0;
}
}
} while (len > 0);
/* check for notification */
if (ptr->wnd && (ptr->n_read>0) && (prev<ptr->n_read) &&
(comm_inbuf(ptr)>=ptr->n_read)) {
/* passed the receive notification threshold */
mask |= CN_RECEIVE;
}
/* write any TransmitCommChar character */
if (ptr->xmit>=0) {
len = write(ptr->fd, &(ptr->xmit), 1);
if (len > 0) ptr->xmit = -1;
}
/* write from output queue */
prev = comm_outbuf(ptr);
do {
bleft = ((ptr->obuf_tail <= ptr->obuf_head) ? ptr->obuf_head : ptr->obuf_size)
- ptr->obuf_tail;
len = bleft ? write(ptr->fd, ptr->outbuf + ptr->obuf_tail, bleft) : 0;
if (len > 0) {
ptr->obuf_tail += len;
if (ptr->obuf_tail >= ptr->obuf_size)
ptr->obuf_tail = 0;
/* flag event */
if (ptr->obuf_tail == ptr->obuf_head) {
if (ptr->s_write) {
SERVICE_Delete( ptr->s_write );
ptr->s_write = INVALID_HANDLE_VALUE;
}
if (ptr->eventmask & EV_TXEMPTY) {
*(WORD*)(unknown[cid]) |= EV_TXEMPTY;
mask |= CN_EVENT;
}
}
}
} while (len > 0);
/* check for notification */
if (ptr->wnd && (ptr->n_write>0) && (prev>=ptr->n_write) &&
(comm_outbuf(ptr)<ptr->n_write)) {
/* passed the transmit notification threshold */
mask |= CN_TRANSMIT;
}
/* send notifications, if any */
if (ptr->wnd && mask) {
TRACE("notifying %04x: cid=%d, mask=%02x\n", ptr->wnd, cid, mask);
if (Callout.PostMessageA) Callout.PostMessageA(ptr->wnd, WM_COMMNOTIFY, cid, mask);
}
}
static void comm_waitread(struct DosDeviceStruct *ptr)
{
if (ptr->s_read != INVALID_HANDLE_VALUE) return;
ptr->s_read = SERVICE_AddObject( FILE_DupUnixHandle( ptr->fd,
GENERIC_READ | SYNCHRONIZE ),
comm_notification,
(ULONG_PTR)ptr );
}
static void comm_waitwrite(struct DosDeviceStruct *ptr)
{
if (ptr->s_write != INVALID_HANDLE_VALUE) return;
ptr->s_write = SERVICE_AddObject( FILE_DupUnixHandle( ptr->fd,
GENERIC_WRITE | SYNCHRONIZE ),
comm_notification,
(ULONG_PTR)ptr );
}
/**************************************************************************
* BuildCommDCB16 (USER.213)
*
* According to the ECMA-234 (368.3) the function will return FALSE on
* success, otherwise it will return -1.
* IF THIS IS NOT CORRECT THE RETURNVALUE CHECK IN BuildCommDCBAndTimeoutsA
* NEEDS TO BE FIXED
*/
BOOL16 WINAPI BuildCommDCB16(LPCSTR device, LPDCB16 lpdcb)
{
/* "COM1:96,n,8,1" */
/* 012345 */
int port;
char *ptr, temp[256];
TRACE("(%s), ptr %p\n", device, lpdcb);
if (!strncasecmp(device,"COM",3)) {
port = device[3] - '0';
if (port-- == 0) {
ERR("BUG ! COM0 can't exist!\n");
return -1;
}
if (!ValidCOMPort(port)) {
FIXME("invalid COM port %d?\n",port);
return -1;
}
memset(lpdcb, 0, sizeof(DCB16)); /* initialize */
lpdcb->Id = port;
if (!*(device+4))
return 0;
if (*(device+4) != ':')
return -1;
strcpy(temp,device+5);
ptr = strtok(temp, ", ");
if (COM[port].baudrate > 0)
lpdcb->BaudRate = COM[port].baudrate;
else
{
int rate;
/* DOS/Windows only compares the first two numbers
* and assigns an appropriate baud rate.
* You can supply 961324245, it still returns 9600 ! */
if (strlen(ptr) < 2)
{
WARN("Unknown baudrate string '%s' !\n", ptr);
return -1; /* error: less than 2 chars */
}
ptr[2] = '\0';
rate = atoi(ptr);
switch (rate) {
case 11:
case 30:
case 60:
rate *= 10;
break;
case 12:
case 24:
case 48:
case 96:
rate *= 100;
break;
case 19:
rate = 19200;
break;
default:
WARN("Unknown baudrate indicator %d !\n", rate);
return -1;
}
lpdcb->BaudRate = rate;
}
TRACE("baudrate (%d)\n", lpdcb->BaudRate);
ptr = strtok(NULL, ", ");
if (islower(*ptr))
*ptr = toupper(*ptr);
TRACE("parity (%c)\n", *ptr);
lpdcb->fParity = TRUE;
switch (*ptr) {
case 'N':
lpdcb->Parity = NOPARITY;
lpdcb->fParity = FALSE;
break;
case 'E':
lpdcb->Parity = EVENPARITY;
break;
case 'M':
lpdcb->Parity = MARKPARITY;
break;
case 'O':
lpdcb->Parity = ODDPARITY;
break;
default:
WARN("Unknown parity `%c'!\n", *ptr);
return -1;
}
ptr = strtok(NULL, ", ");
TRACE("charsize (%c)\n", *ptr);
lpdcb->ByteSize = *ptr - '0';
ptr = strtok(NULL, ", ");
TRACE("stopbits (%c)\n", *ptr);
switch (*ptr) {
case '1':
lpdcb->StopBits = ONESTOPBIT;
break;
case '2':
lpdcb->StopBits = TWOSTOPBITS;
break;
default:
WARN("Unknown # of stopbits `%c'!\n", *ptr);
return -1;
}
}
return 0;
}
/*****************************************************************************
* OpenComm16 (USER.200)
*/
INT16 WINAPI OpenComm16(LPCSTR device,UINT16 cbInQueue,UINT16 cbOutQueue)
{
int port,fd;
TRACE("%s, %d, %d\n", device, cbInQueue, cbOutQueue);
if (strlen(device) < 4)
return IE_BADID;
port = device[3] - '0';
if (port-- == 0)
ERR("BUG ! COM0 or LPT0 don't exist !\n");
if (!strncasecmp(device,"COM",3)) {
TRACE("%s = %s\n", device, COM[port].devicename);
if (!ValidCOMPort(port))
return IE_BADID;
if (COM[port].fd)
return IE_OPEN;
fd = open(COM[port].devicename, O_RDWR | O_NONBLOCK);
if (fd == -1) {
ERR("Couldn't open %s ! (%s)\n", COM[port].devicename, strerror(errno));
return IE_HARDWARE;
} else {
unknown[port] = SEGPTR_ALLOC(40);
bzero(unknown[port],40);
COM[port].fd = fd;
COM[port].commerror = 0;
COM[port].eventmask = 0;
COM[port].evtchar = 0; /* FIXME: default? */
/* save terminal state */
tcgetattr(fd,&m_stat[port]);
/* set default parameters */
if(COM[port].baudrate>-1){
DCB16 dcb;
GetCommState16(port, &dcb);
dcb.BaudRate=COM[port].baudrate;
/* more defaults:
* databits, parity, stopbits
*/
SetCommState16( &dcb);
}
/* init priority characters */
COM[port].unget = -1;
COM[port].xmit = -1;
/* allocate buffers */
COM[port].ibuf_size = cbInQueue;
COM[port].ibuf_head = COM[port].ibuf_tail = 0;
COM[port].obuf_size = cbOutQueue;
COM[port].obuf_head = COM[port].obuf_tail = 0;
COM[port].inbuf = malloc(cbInQueue);
if (COM[port].inbuf) {
COM[port].outbuf = malloc(cbOutQueue);
if (!COM[port].outbuf)
free(COM[port].inbuf);
} else COM[port].outbuf = NULL;
if (!COM[port].outbuf) {
/* not enough memory */
tcsetattr(COM[port].fd,TCSANOW,&m_stat[port]);
close(COM[port].fd);
ERR("out of memory\n");
return IE_MEMORY;
}
COM[port].s_read = INVALID_HANDLE_VALUE;
COM[port].s_write = INVALID_HANDLE_VALUE;
comm_waitread( &COM[port] );
return port;
}
}
else
if (!strncasecmp(device,"LPT",3)) {
if (!ValidLPTPort(port))
return IE_BADID;
if (LPT[port].fd)
return IE_OPEN;
fd = open(LPT[port].devicename, O_RDWR | O_NONBLOCK, 0);
if (fd == -1) {
return IE_HARDWARE;
} else {
LPT[port].fd = fd;
LPT[port].commerror = 0;
LPT[port].eventmask = 0;
return port|FLAG_LPT;
}
}
return 0;
}
/*****************************************************************************
* CloseComm16 (USER.207)
*/
INT16 WINAPI CloseComm16(INT16 cid)
{
struct DosDeviceStruct *ptr;
TRACE("cid=%d\n", cid);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no cid=%d found!\n", cid);
return -1;
}
if (!(cid&FLAG_LPT)) {
/* COM port */
SEGPTR_FREE(unknown[cid]); /* [LW] */
SERVICE_Delete( COM[cid].s_write );
SERVICE_Delete( COM[cid].s_read );
/* free buffers */
free(ptr->outbuf);
free(ptr->inbuf);
/* reset modem lines */
tcsetattr(ptr->fd,TCSANOW,&m_stat[cid]);
}
if (close(ptr->fd) == -1) {
ptr->commerror = WinError();
/* FIXME: should we clear ptr->fd here? */
return -1;
} else {
ptr->commerror = 0;
ptr->fd = 0;
return 0;
}
}
/*****************************************************************************
* SetCommBreak16 (USER.210)
*/
INT16 WINAPI SetCommBreak16(INT16 cid)
{
struct DosDeviceStruct *ptr;
TRACE("cid=%d\n", cid);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no cid=%d found!\n", cid);
return -1;
}
ptr->suspended = 1;
ptr->commerror = 0;
return 0;
}
/*****************************************************************************
* ClearCommBreak16 (USER.211)
*/
INT16 WINAPI ClearCommBreak16(INT16 cid)
{
struct DosDeviceStruct *ptr;
TRACE("cid=%d\n", cid);
if (!(ptr = GetDeviceStruct(cid))) {
FIXME("no cid=%d found!\n", cid);
return -1;
}
ptr->suspended = 0;
ptr->commerror = 0;
return 0;
}
/*****************************************************************************
* EscapeCommFunction16 (USER.214)
*/
LONG WINAPI EscapeCommFunction16(UINT16 cid,UINT16 nFunction)
{
int max;
struct DosDeviceStruct *ptr;
struct termios port;
TRACE("cid=%d, function=%d\n", cid, nFunction);
if ((nFunction != GETMAXCOM) && (nFunction != GETMAXLPT)) {
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no cid=%d found!\n", cid);
return -1;
}
if (tcgetattr(ptr->fd,&port) == -1) {
TRACE("tcgetattr failed\n");
ptr->commerror=WinError();
return -1;
}
} else ptr = NULL;
switch (nFunction) {
case RESETDEV:
TRACE("RESETDEV\n");
break;
case GETMAXCOM:
TRACE("GETMAXCOM\n");
for (max = MAX_PORTS;!COM[max].devicename;max--)
;
return max;
break;
case GETMAXLPT:
TRACE("GETMAXLPT\n");
for (max = MAX_PORTS;!LPT[max].devicename;max--)
;
return FLAG_LPT + max;
break;
case GETBASEIRQ:
TRACE("GETBASEIRQ\n");
/* FIXME: use tables */
/* just fake something for now */
if (cid & FLAG_LPT) {
/* LPT1: irq 7, LPT2: irq 5 */
return (cid & 0x7f) ? 5 : 7;
} else {
/* COM1: irq 4, COM2: irq 3,
COM3: irq 4, COM4: irq 3 */
return 4 - (cid & 1);
}
break;
case CLRDTR:
TRACE("CLRDTR\n");
#ifdef TIOCM_DTR
return COMM_WhackModem(ptr->fd, ~TIOCM_DTR, 0);
#endif
case CLRRTS:
TRACE("CLRRTS\n");
#ifdef TIOCM_RTS
return COMM_WhackModem(ptr->fd, ~TIOCM_RTS, 0);
#endif
case SETDTR:
TRACE("SETDTR\n");
#ifdef TIOCM_DTR
return COMM_WhackModem(ptr->fd, 0, TIOCM_DTR);
#endif
case SETRTS:
TRACE("SETRTS\n");
#ifdef TIOCM_RTS
return COMM_WhackModem(ptr->fd, 0, TIOCM_RTS);
#endif
case SETXOFF:
TRACE("SETXOFF\n");
port.c_iflag |= IXOFF;
break;
case SETXON:
TRACE("SETXON\n");
port.c_iflag |= IXON;
break;
default:
WARN("(cid=%d,nFunction=%d): Unknown function\n",
cid, nFunction);
break;
}
if (tcsetattr(ptr->fd, TCSADRAIN, &port) == -1) {
ptr->commerror = WinError();
return -1;
} else {
ptr->commerror = 0;
return 0;
}
}
/*****************************************************************************
* FlushComm16 (USER.215)
*/
INT16 WINAPI FlushComm16(INT16 cid,INT16 fnQueue)
{
int queue;
struct DosDeviceStruct *ptr;
TRACE("cid=%d, queue=%d\n", cid, fnQueue);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no cid=%d found!\n", cid);
return -1;
}
switch (fnQueue) {
case 0:
queue = TCOFLUSH;
ptr->obuf_tail = ptr->obuf_head;
break;
case 1:
queue = TCIFLUSH;
ptr->ibuf_head = ptr->ibuf_tail;
break;
default:
WARN("(cid=%d,fnQueue=%d):Unknown queue\n",
cid, fnQueue);
return -1;
}
if (tcflush(ptr->fd, queue)) {
ptr->commerror = WinError();
return -1;
} else {
ptr->commerror = 0;
return 0;
}
}
/********************************************************************
* GetCommError16 (USER.203)
*/
INT16 WINAPI GetCommError16(INT16 cid,LPCOMSTAT16 lpStat)
{
int temperror;
struct DosDeviceStruct *ptr;
unsigned char *stol;
unsigned int mstat;
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return -1;
}
if (cid&FLAG_LPT) {
WARN(" cid %d not comm port\n",cid);
return CE_MODE;
}
stol = (unsigned char *)unknown[cid] + COMM_MSR_OFFSET;
ioctl(ptr->fd,TIOCMGET,&mstat);
COMM_MSRUpdate( stol, mstat);
if (lpStat) {
lpStat->status = 0;
lpStat->cbOutQue = comm_outbuf(ptr);
lpStat->cbInQue = comm_inbuf(ptr);
TRACE("cid %d, error %d, stat %d in %d out %d, stol %x\n",
cid, ptr->commerror, lpStat->status, lpStat->cbInQue,
lpStat->cbOutQue, *stol);
}
else
TRACE("cid %d, error %d, lpStat NULL stol %x\n",
cid, ptr->commerror, *stol);
/* Return any errors and clear it */
temperror = ptr->commerror;
ptr->commerror = 0;
return(temperror);
}
/*****************************************************************************
* SetCommEventMask16 (USER.208)
*/
SEGPTR WINAPI SetCommEventMask16(INT16 cid,UINT16 fuEvtMask)
{
struct DosDeviceStruct *ptr;
unsigned char *stol;
int repid;
unsigned int mstat;
TRACE("cid %d,mask %d\n",cid,fuEvtMask);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return (SEGPTR)NULL;
}
ptr->eventmask = fuEvtMask;
if ((cid&FLAG_LPT) || !ValidCOMPort(cid)) {
WARN(" cid %d not comm port\n",cid);
return (SEGPTR)NULL;
}
/* it's a COM port ? -> modify flags */
stol = (unsigned char *)unknown[cid] + COMM_MSR_OFFSET;
repid = ioctl(ptr->fd,TIOCMGET,&mstat);
TRACE(" ioctl %d, msr %x at %p %p\n",repid,mstat,stol,unknown[cid]);
COMM_MSRUpdate( stol, mstat);
TRACE(" modem dcd construct %x\n",*stol);
return SEGPTR_GET(unknown[cid]);
}
/*****************************************************************************
* GetCommEventMask16 (USER.209)
*/
UINT16 WINAPI GetCommEventMask16(INT16 cid,UINT16 fnEvtClear)
{
struct DosDeviceStruct *ptr;
WORD events;
TRACE("cid %d, mask %d\n", cid, fnEvtClear);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return 0;
}
if ((cid&FLAG_LPT) || !ValidCOMPort(cid)) {
WARN(" cid %d not comm port\n",cid);
return 0;
}
events = *(WORD*)(unknown[cid]) & fnEvtClear;
*(WORD*)(unknown[cid]) &= ~fnEvtClear;
return events;
}
/*****************************************************************************
* SetCommState16 (USER.201)
*/
INT16 WINAPI SetCommState16(LPDCB16 lpdcb)
{
struct termios port;
struct DosDeviceStruct *ptr;
int bytesize, stopbits;
int fail=0;
TRACE("cid %d, ptr %p\n", lpdcb->Id, lpdcb);
if ((ptr = GetDeviceStruct(lpdcb->Id)) == NULL) {
FIXME("no handle for cid = %0x!\n",lpdcb->Id);
return -1;
}
if (tcgetattr(ptr->fd, &port) == -1) {
ptr->commerror = WinError();
return -1;
}
port.c_cc[VMIN] = 0;
port.c_cc[VTIME] = 1;
#ifdef IMAXBEL
port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR|IMAXBEL);
#else
port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR);
#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;
TRACE("baudrate %d\n",lpdcb->BaudRate);
#ifdef CBAUD
port.c_cflag &= ~CBAUD;
switch (lpdcb->BaudRate) {
case 110:
case CBR_110:
port.c_cflag |= B110;
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 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 57601:
port.c_cflag |= B115200;
break;
#endif
default:
ptr->commerror = IE_BAUDRATE;
fail=1;
}
#elif !defined(__EMX__)
switch (lpdcb->BaudRate) {
case 110:
case CBR_110:
port.c_ospeed = B110;
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 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;
default:
ptr->commerror = IE_BAUDRATE;
fail=1;
}
port.c_ispeed = port.c_ospeed;
#endif
bytesize=lpdcb->ByteSize;
stopbits=lpdcb->StopBits;
TRACE("fParity %d Parity %d\n",lpdcb->fParity, lpdcb->Parity);
#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 {
ptr->commerror = IE_BYTESIZE;
fail=1;
}
break;
case SPACEPARITY:
if( bytesize < 8) {
bytesize +=1;
port.c_iflag &= ~INPCK;
} else {
ptr->commerror = IE_BYTESIZE;
fail=1;
}
break;
#endif
default:
ptr->commerror = IE_BYTESIZE;
fail=1;
}
TRACE("bytesize %d\n",bytesize);
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:
ptr->commerror = IE_BYTESIZE;
fail=1;
}
TRACE("stopbits %d\n",stopbits);
switch (stopbits) {
case ONESTOPBIT:
port.c_cflag &= ~CSTOPB;
break;
case ONE5STOPBITS: /* wil be selected if bytesize is 5 */
case TWOSTOPBITS:
port.c_cflag |= CSTOPB;
break;
default:
ptr->commerror = IE_BYTESIZE;
fail=1;
}
#ifdef CRTSCTS
if (lpdcb->fDtrflow || lpdcb->fRtsflow || lpdcb->fOutxCtsFlow)
port.c_cflag |= CRTSCTS;
if (lpdcb->fDtrDisable)
port.c_cflag &= ~CRTSCTS;
#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;
ptr->evtchar = lpdcb->EvtChar;
if(fail)
return -1;
if (tcsetattr(ptr->fd, TCSADRAIN, &port) == -1) {
ptr->commerror = WinError();
return -1;
} else {
ptr->commerror = 0;
return 0;
}
}
/*****************************************************************************
* GetCommState16 (USER.202)
*/
INT16 WINAPI GetCommState16(INT16 cid, LPDCB16 lpdcb)
{
int speed;
struct DosDeviceStruct *ptr;
struct termios port;
TRACE("cid %d, ptr %p\n", cid, lpdcb);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return -1;
}
if (tcgetattr(ptr->fd, &port) == -1) {
ptr->commerror = WinError();
return -1;
}
lpdcb->Id = cid;
#ifndef __EMX__
#ifdef CBAUD
speed = port.c_cflag & CBAUD;
#else
speed = port.c_ospeed;
#endif
switch(speed) {
case B110:
lpdcb->BaudRate = 110;
break;
case B300:
lpdcb->BaudRate = 300;
break;
case B600:
lpdcb->BaudRate = 600;
break;
case B1200:
lpdcb->BaudRate = 1200;
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 = 57601;
break;
#endif
}
#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;
}
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->RlsTimeout = 50;
lpdcb->CtsTimeout = 50;
lpdcb->DsrTimeout = 50;
lpdcb->fNull = 0;
lpdcb->fChEvt = 0;
lpdcb->fBinary = 1;
lpdcb->fDtrDisable = 0;
#ifdef CRTSCTS
if (port.c_cflag & CRTSCTS) {
lpdcb->fDtrflow = 1;
lpdcb->fRtsflow = 1;
lpdcb->fOutxCtsFlow = 1;
lpdcb->fOutxDsrFlow = 1;
} else
#endif
lpdcb->fDtrDisable = 1;
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;
lpdcb->EvtChar = ptr->evtchar;
ptr->commerror = 0;
return 0;
}
/*****************************************************************************
* TransmitCommChar16 (USER.206)
*/
INT16 WINAPI TransmitCommChar16(INT16 cid,CHAR chTransmit)
{
struct DosDeviceStruct *ptr;
TRACE("cid %d, data %d \n", cid, chTransmit);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return -1;
}
if (ptr->suspended) {
ptr->commerror = IE_HARDWARE;
return -1;
}
if (ptr->xmit >= 0) {
/* character already queued */
/* FIXME: which error would Windows return? */
ptr->commerror = CE_TXFULL;
return -1;
}
if (ptr->obuf_head == ptr->obuf_tail) {
/* transmit queue empty, try to transmit directly */
if (write(ptr->fd, &chTransmit, 1) == -1) {
/* didn't work, queue it */
ptr->xmit = chTransmit;
comm_waitwrite(ptr);
}
} else {
/* data in queue, let this char be transmitted next */
ptr->xmit = chTransmit;
comm_waitwrite(ptr);
}
ptr->commerror = 0;
return 0;
}
/*****************************************************************************
* UngetCommChar16 (USER.212)
*/
INT16 WINAPI UngetCommChar16(INT16 cid,CHAR chUnget)
{
struct DosDeviceStruct *ptr;
TRACE("cid %d (char %d)\n", cid, chUnget);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return -1;
}
if (ptr->suspended) {
ptr->commerror = IE_HARDWARE;
return -1;
}
if (ptr->unget>=0) {
/* character already queued */
/* FIXME: which error would Windows return? */
ptr->commerror = CE_RXOVER;
return -1;
}
ptr->unget = chUnget;
ptr->commerror = 0;
return 0;
}
/*****************************************************************************
* ReadComm16 (USER.204)
*/
INT16 WINAPI ReadComm16(INT16 cid,LPSTR lpvBuf,INT16 cbRead)
{
int status, length;
struct DosDeviceStruct *ptr;
LPSTR orgBuf = lpvBuf;
TRACE("cid %d, ptr %p, length %d\n", cid, lpvBuf, cbRead);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return -1;
}
if (ptr->suspended) {
ptr->commerror = IE_HARDWARE;
return -1;
}
/* read unget character */
if (ptr->unget>=0) {
*lpvBuf++ = ptr->unget;
ptr->unget = -1;
length = 1;
} else
length = 0;
/* read from receive buffer */
while (length < cbRead) {
status = ((ptr->ibuf_head < ptr->ibuf_tail) ?
ptr->ibuf_size : ptr->ibuf_head) - ptr->ibuf_tail;
if (!status) break;
if ((cbRead - length) < status)
status = cbRead - length;
memcpy(lpvBuf, ptr->inbuf + ptr->ibuf_tail, status);
ptr->ibuf_tail += status;
if (ptr->ibuf_tail >= ptr->ibuf_size)
ptr->ibuf_tail = 0;
lpvBuf += status;
length += status;
}
TRACE("%.*s\n", length, orgBuf);
ptr->commerror = 0;
return length;
}
/*****************************************************************************
* WriteComm16 (USER.205)
*/
INT16 WINAPI WriteComm16(INT16 cid, LPSTR lpvBuf, INT16 cbWrite)
{
int status, length;
struct DosDeviceStruct *ptr;
TRACE("cid %d, ptr %p, length %d\n",
cid, lpvBuf, cbWrite);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return -1;
}
if (ptr->suspended) {
ptr->commerror = IE_HARDWARE;
return -1;
}
TRACE("%.*s\n", cbWrite, lpvBuf );
length = 0;
while (length < cbWrite) {
if ((ptr->obuf_head == ptr->obuf_tail) && (ptr->xmit < 0)) {
/* no data queued, try to write directly */
status = write(ptr->fd, lpvBuf, cbWrite - length);
if (status > 0) {
lpvBuf += status;
length += status;
continue;
}
}
/* can't write directly, put into transmit buffer */
status = ((ptr->obuf_tail > ptr->obuf_head) ?
(ptr->obuf_tail-1) : ptr->obuf_size) - ptr->obuf_head;
if (!status) break;
if ((cbWrite - length) < status)
status = cbWrite - length;
memcpy(lpvBuf, ptr->outbuf + ptr->obuf_head, status);
ptr->obuf_head += status;
if (ptr->obuf_head >= ptr->obuf_size)
ptr->obuf_head = 0;
lpvBuf += status;
length += status;
comm_waitwrite(ptr);
}
ptr->commerror = 0;
return length;
}
/***********************************************************************
* EnableCommNotification (USER.245)
*/
BOOL16 WINAPI EnableCommNotification16( INT16 cid, HWND16 hwnd,
INT16 cbWriteNotify, INT16 cbOutQueue )
{
struct DosDeviceStruct *ptr;
TRACE("(%d, %x, %d, %d)\n", cid, hwnd, cbWriteNotify, cbOutQueue);
if ((ptr = GetDeviceStruct(cid)) == NULL) {
FIXME("no handle for cid = %0x!\n",cid);
return -1;
}
ptr->wnd = hwnd;
ptr->n_read = cbWriteNotify;
ptr->n_write = cbOutQueue;
return TRUE;
}
/**************************************************************************
* BuildCommDCBA (KERNEL32.113)
*
* 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 an 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 (KERNEL32.114)
*
* Updates a device control block data structure with values from an
* ascii device control string. Taking time out values from a time outs
* 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 time outs to use if asked to set them by the control string. */
{
int port;
char *ptr,*temp;
TRACE("(%s,%p,%p)\n",device,lpdcb,lptimeouts);
if (!strncasecmp(device,"COM",3)) {
port=device[3]-'0';
if (port--==0) {
ERR("BUG! COM0 can't exist!\n");
return FALSE;
}
if (!ValidCOMPort(port))
return FALSE;
if (*(device+4)!=':')
return FALSE;
temp=(LPSTR)(device+5);
} else
temp=(LPSTR)device;
lpdcb->DCBlength = sizeof(DCB);
if (strchr(temp,',')) { /* old style */
DCB16 dcb16;
BOOL16 ret;
char last=temp[strlen(temp)-1];
ret=BuildCommDCB16(device,&dcb16);
if (ret)
return FALSE;
lpdcb->BaudRate = dcb16.BaudRate;
lpdcb->ByteSize = dcb16.ByteSize;
lpdcb->fBinary = dcb16.fBinary;
lpdcb->Parity = dcb16.Parity;
lpdcb->fParity = dcb16.fParity;
lpdcb->fNull = dcb16.fNull;
lpdcb->StopBits = dcb16.StopBits;
if (last == 'x') {
lpdcb->fInX = TRUE;
lpdcb->fOutX = TRUE;
lpdcb->fOutxCtsFlow = FALSE;
lpdcb->fOutxDsrFlow = FALSE;
lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
lpdcb->fRtsControl = RTS_CONTROL_ENABLE;
} else if (last=='p') {
lpdcb->fInX = FALSE;
lpdcb->fOutX = FALSE;
lpdcb->fOutxCtsFlow = TRUE;
lpdcb->fOutxDsrFlow = TRUE;
lpdcb->fDtrControl = DTR_CONTROL_HANDSHAKE;
lpdcb->fRtsControl = RTS_CONTROL_HANDSHAKE;
} else {
lpdcb->fInX = FALSE;
lpdcb->fOutX = FALSE;
lpdcb->fOutxCtsFlow = FALSE;
lpdcb->fOutxDsrFlow = FALSE;
lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
lpdcb->fRtsControl = RTS_CONTROL_ENABLE;
}
lpdcb->XonChar = dcb16.XonChar;
lpdcb->XoffChar = dcb16.XoffChar;
lpdcb->ErrorChar= dcb16.PeChar;
lpdcb->fErrorChar= dcb16.fPeChar;
lpdcb->EofChar = dcb16.EofChar;
lpdcb->EvtChar = dcb16.EvtChar;
lpdcb->XonLim = dcb16.XonLim;
lpdcb->XoffLim = dcb16.XoffLim;
return TRUE;
}
ptr=strtok(temp," ");
while (ptr) {
DWORD flag,x;
flag=0;
if (!strncmp("baud=",ptr,5)) {
if (!sscanf(ptr+5,"%ld",&x))
WARN("Couldn't parse %s\n",ptr);
lpdcb->BaudRate = x;
flag=1;
}
if (!strncmp("stop=",ptr,5)) {
if (!sscanf(ptr+5,"%ld",&x))
WARN("Couldn't parse %s\n",ptr);
lpdcb->StopBits = x;
flag=1;
}
if (!strncmp("data=",ptr,5)) {
if (!sscanf(ptr+5,"%ld",&x))
WARN("Couldn't parse %s\n",ptr);
lpdcb->ByteSize = x;
flag=1;
}
if (!strncmp("parity=",ptr,7)) {
lpdcb->fParity = TRUE;
switch (ptr[8]) {
case 'N':case 'n':
lpdcb->fParity = FALSE;
lpdcb->Parity = NOPARITY;
break;
case 'E':case 'e':
lpdcb->Parity = EVENPARITY;
break;
case 'O':case 'o':
lpdcb->Parity = ODDPARITY;
break;
case 'M':case 'm':
lpdcb->Parity = MARKPARITY;
break;
}
flag=1;
}
if (!flag)
ERR("Unhandled specifier '%s', please report.\n",ptr);
ptr=strtok(NULL," ");
}
if (lpdcb->BaudRate==110)
lpdcb->StopBits = 2;
return TRUE;
}
/**************************************************************************
* BuildCommDCBAndTimeoutsW (KERNEL32.115)
*
* Updates a device control block data structure with values from an
* unicode device control string. Taking time out values from a time outs
* 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 time outs to use if asked to set them by the control string. */
{
BOOL ret = FALSE;
LPSTR devidA;
TRACE("(%p,%p,%p)\n",devid,lpdcb,lptimeouts);
devidA = HEAP_strdupWtoA( GetProcessHeap(), 0, devid );
if (devidA)
{
ret=BuildCommDCBAndTimeoutsA(devidA,lpdcb,lptimeouts);
HeapFree( GetProcessHeap(), 0, devidA );
}
return ret;
}
/**************************************************************************
* BuildCommDCBW (KERNEL32.116)
*
* 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 an 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);
}
/* FIXME: having these global for win32 for now */
int commerror=0;
/*****************************************************************************
* SetCommBreak (KERNEL32.616)
*
* 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 communictions device to suspend. */
{
#if defined(TIOCSBRK) && defined(TIOCCBRK) /* check if available for compilation */
int fd,result;
fd = FILE_GetUnixHandle( handle, GENERIC_READ );
if(fd<0) {
TRACE("FILE_GetUnixHandle failed\n");
return FALSE;
}
result = ioctl(fd,TIOCSBRK,0);
close(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 (KERNEL32.135)
*
* 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 = FILE_GetUnixHandle( handle, GENERIC_READ );
if(fd<0) {
TRACE("FILE_GetUnixHandle failed\n");
return FALSE;
}
result = ioctl(fd,TIOCCBRK,0);
close(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 (KERNEL32.213)
*
* 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 %d, function=%d\n", handle, nFunction);
fd = FILE_GetUnixHandle( handle, GENERIC_READ );
if(fd<0) {
FIXME("handle %d not found.\n",handle);
return FALSE;
}
if (tcgetattr(fd,&port) == -1) {
commerror=WinError();
close(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_DTR
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=%d,nFunction=%d): Unknown function\n",
handle, nFunction);
break;
}
if (!direct)
if (tcsetattr(fd, TCSADRAIN, &port) == -1) {
commerror = WinError();
close(fd);
return FALSE;
} else
result= TRUE;
else
{
if (result == -1)
{
result= FALSE;
commerror=WinError();
}
else
result = TRUE;
}
close(fd);
return result;
}
/********************************************************************
* PurgeComm (KERNEL32.558)
*
* 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 %d, flags %lx\n", handle, flags);
fd = FILE_GetUnixHandle( handle, GENERIC_READ );
if(fd<0) {
FIXME("no handle %d found\n",handle);
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);
close(fd);
return 1;
}
/*****************************************************************************
* ClearCommError (KERNEL32.136)
*
* 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=FILE_GetUnixHandle( handle, GENERIC_READ );
if(0>fd)
{
FIXME("no handle %d found\n",handle);
return FALSE;
}
if (lpStat)
{
lpStat->status = 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 %d cbInQue = %ld cbOutQue = %ld\n",
handle, lpStat->cbInQue, lpStat->cbOutQue);
}
close(fd);
if(errors)
*errors = 0;
/*
** After an asynchronous write opperation, the
** app will call ClearCommError to see if the
** results are ready yet. It waits for ERROR_IO_PENDING
*/
commerror = ERROR_IO_PENDING;
return TRUE;
}
/*****************************************************************************
* SetupComm (KERNEL32.677)
*
* 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=FILE_GetUnixHandle( handle, GENERIC_READ );
if(0>fd) {
FIXME("handle %d not found?\n",handle);
return FALSE;
}
close(fd);
return TRUE;
}
/*****************************************************************************
* GetCommMask (KERNEL32.284)
*
* 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 %d, mask %p\n", handle, evtmask);
SERVER_START_REQ( get_serial_info )
{
req->handle = handle;
if ((ret = !SERVER_CALL_ERR()))
{
if (evtmask) *evtmask = req->eventmask;
}
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* SetCommMask (KERNEL32.618)
*
* 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 to be monitored. */
{
BOOL ret;
TRACE("handle %d, mask %lx\n", handle, evtmask);
SERVER_START_REQ( set_serial_info )
{
req->handle = handle;
req->flags = SERIALINFO_SET_MASK;
req->eventmask = evtmask;
ret = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* SetCommState (KERNEL32.619)
*
* 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;
TRACE("handle %d, 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");
fd = FILE_GetUnixHandle( handle, GENERIC_READ );
if (fd < 0) {
FIXME("no handle %d found\n",handle);
return FALSE;
}
if ((tcgetattr(fd,&port)) == -1) {
int save_error = errno;
commerror = WinError();
close( 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|IMAXBEL);
#else
port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR);
#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;
/*
** MJM - removed default baudrate settings
** TRACE(comm,"baudrate %ld\n",lpdcb->BaudRate);
*/
#ifdef CBAUD
port.c_cflag &= ~CBAUD;
switch (lpdcb->BaudRate) {
case 110:
case CBR_110:
port.c_cflag |= B110;
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 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 460600:
port.c_cflag |= B460800;
break;
#endif
default:
commerror = IE_BAUDRATE;
close( fd );
ERR("baudrate %ld\n",lpdcb->BaudRate);
return FALSE;
}
#elif !defined(__EMX__)
switch (lpdcb->BaudRate) {
case 110:
case CBR_110:
port.c_ospeed = B110;
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 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;
default:
commerror = IE_BAUDRATE;
close( 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 {
commerror = IE_BYTESIZE;
close( fd );
ERR("Cannot set MARK Parity\n");
return FALSE;
}
break;
case SPACEPARITY:
if( bytesize < 8) {
bytesize +=1;
port.c_iflag &= ~INPCK;
} else {
commerror = IE_BYTESIZE;
close( fd );
ERR("Cannot set SPACE Parity\n");
return FALSE;
}
break;
#endif
default:
commerror = IE_BYTESIZE;
close( 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:
commerror = IE_BYTESIZE;
close( fd );
ERR("ByteSize\n");
return FALSE;
}
switch (stopbits) {
case ONESTOPBIT:
port.c_cflag &= ~CSTOPB;
break;
case ONE5STOPBITS: /* wil be selected if bytesize is 5 */
case TWOSTOPBITS:
port.c_cflag |= CSTOPB;
break;
default:
commerror = IE_BYTESIZE;
close( fd );
ERR("StopBits\n");
return FALSE;
}
#ifdef CRTSCTS
if ( lpdcb->fOutxCtsFlow ||
lpdcb->fDtrControl == DTR_CONTROL_ENABLE||
lpdcb->fRtsControl == RTS_CONTROL_ENABLE
)
{
port.c_cflag |= CRTSCTS;
TRACE("CRTSCTS\n");
}
if (lpdcb->fDtrControl == DTR_CONTROL_DISABLE)
{
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*/
int save_error=errno;
commerror = WinError();
close( fd );
ERR("tcsetattr error '%s'\n", strerror(save_error));
return FALSE;
} else {
commerror = 0;
close( fd );
return TRUE;
}
}
/*****************************************************************************
* GetCommState (KERNEL32.287)
*
* 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;
TRACE("handle %d, ptr %p\n", handle, lpdcb);
fd = FILE_GetUnixHandle( handle, GENERIC_READ );
if (fd < 0)
{
ERR("FILE_GetUnixHandle failed\n");
return FALSE;
}
if (tcgetattr(fd, &port) == -1) {
int save_error=errno;
ERR("tcgetattr error '%s'\n", strerror(save_error));
commerror = WinError();
close( fd );
return FALSE;
}
close( fd );
#ifndef __EMX__
#ifdef CBAUD
speed= (port.c_cflag & CBAUD);
#else
speed= (cfgetospeed(&port));
#endif
switch (speed) {
case B110:
lpdcb->BaudRate = 110;
break;
case B300:
lpdcb->BaudRate = 300;
break;
case B600:
lpdcb->BaudRate = 600;
break;
case B1200:
lpdcb->BaudRate = 1200;
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;
#ifdef CRTSCTS
if (port.c_cflag & CRTSCTS) {
lpdcb->fDtrControl = DTR_CONTROL_ENABLE;
lpdcb->fRtsControl = RTS_CONTROL_ENABLE;
lpdcb->fOutxCtsFlow = 1;
lpdcb->fOutxDsrFlow = 1;
} else
#endif
{
lpdcb->fDtrControl = DTR_CONTROL_DISABLE;
lpdcb->fRtsControl = RTS_CONTROL_DISABLE;
}
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;
commerror = 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");
#ifdef CRTSCTS
if ( lpdcb->fOutxCtsFlow ||
lpdcb->fDtrControl == DTR_CONTROL_ENABLE||
lpdcb->fRtsControl == RTS_CONTROL_ENABLE
)
TRACE("CRTSCTS\n");
if (lpdcb->fDtrControl == DTR_CONTROL_DISABLE)
TRACE("~CRTSCTS\n");
#endif
return TRUE;
}
/*****************************************************************************
* TransmitCommChar (KERNEL32.697)
*
* 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. */
{
FIXME("(%x,'%c'), use win32 handle!\n",hComm,chTransmit);
return TRUE;
}
/*****************************************************************************
* GetCommTimeouts (KERNEL32.288)
*
* Obtains the request time out 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 time outs. */
{
BOOL ret;
TRACE("(%x,%p)\n",hComm,lptimeouts);
if(!lptimeouts)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
SERVER_START_REQ( get_serial_info )
{
req->handle = hComm;
if ((ret = !SERVER_CALL_ERR()))
{
lptimeouts->ReadIntervalTimeout = req->readinterval;
lptimeouts->ReadTotalTimeoutMultiplier = req->readmult;
lptimeouts->ReadTotalTimeoutConstant = req->readconst;
lptimeouts->WriteTotalTimeoutMultiplier = req->writemult;
lptimeouts->WriteTotalTimeoutConstant = req->writeconst;
}
}
SERVER_END_REQ;
return ret;
}
/*****************************************************************************
* SetCommTimeouts (KERNEL32.620)
*
* 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 time outs 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("(%x,%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 = !SERVER_CALL_ERR();
}
SERVER_END_REQ;
if (!ret) return FALSE;
/* FIXME: move this stuff to the server */
fd = FILE_GetUnixHandle( hComm, GENERIC_READ );
if (fd < 0) {
FIXME("no fd for handle = %0x!.\n",hComm);
return FALSE;
}
if (-1==tcgetattr(fd,&tios)) {
FIXME("tcgetattr on fd %d failed!\n",fd);
return FALSE;
}
/* VTIME is in 1/10 seconds */
tios.c_cc[VTIME]= (lptimeouts->ReadIntervalTimeout+99)/100;
if (-1==tcsetattr(fd,0,&tios)) {
FIXME("tcsetattr on fd %d failed!\n",fd);
return FALSE;
}
close(fd);
return TRUE;
}
/***********************************************************************
* GetCommModemStatus (KERNEL32.285)
*
* 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 = FILE_GetUnixHandle( hFile, GENERIC_READ );
if(fd<0)
return FALSE;
result = ioctl(fd, TIOCMGET, &mstat);
close(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
}
/***********************************************************************
* COMM_WaitCommEventService (INTERNAL)
*
* This function is called while the client is waiting on the
* server, so we can't make any server calls here.
*/
static void COMM_WaitCommEventService(async_private *ovp, int events)
{
LPOVERLAPPED lpOverlapped = ovp->lpOverlapped;
TRACE("overlapped %p wait complete %p <- %x\n",lpOverlapped,ovp->buffer,events);
if(events&POLLNVAL)
{
lpOverlapped->Internal = STATUS_HANDLES_CLOSED;
return;
}
if(ovp->buffer)
{
if(events&POLLIN)
*ovp->buffer = EV_RXCHAR;
}
lpOverlapped->Internal = STATUS_SUCCESS;
}
/***********************************************************************
* 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,ret;
async_private *ovp;
if(!lpOverlapped)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if(NtResetEvent(lpOverlapped->hEvent,NULL))
return FALSE;
lpOverlapped->Internal = STATUS_PENDING;
lpOverlapped->InternalHigh = 0;
lpOverlapped->Offset = 0;
lpOverlapped->OffsetHigh = 0;
/* start an ASYNCHRONOUS WaitCommEvent */
SERVER_START_REQ( create_async )
{
req->file_handle = hFile;
req->count = 0;
req->type = ASYNC_TYPE_WAIT;
ret=SERVER_CALL_ERR();
}
SERVER_END_REQ;
if (ret)
return FALSE;
fd = FILE_GetUnixHandle( hFile, GENERIC_WRITE );
if(fd<0)
return FALSE;
ovp = (async_private *) HeapAlloc(GetProcessHeap(), 0, sizeof (async_private));
if(!ovp)
{
close(fd);
return FALSE;
}
ovp->lpOverlapped = lpOverlapped;
ovp->timeout = 0;
ovp->tv.tv_sec = 0;
ovp->tv.tv_usec = 0;
ovp->event = POLLIN;
ovp->func = COMM_WaitCommEventService;
ovp->buffer = (char *)lpdwEvents;
ovp->fd = fd;
ovp->next = NtCurrentTeb()->pending_list;
ovp->prev = NULL;
if(ovp->next)
ovp->next->prev=ovp;
NtCurrentTeb()->pending_list = ovp;
SetLastError(ERROR_IO_PENDING);
return FALSE;
}
/***********************************************************************
* WaitCommEvent (KERNEL32.719)
*
* 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;
TRACE("(%x %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 = CreateEventA(NULL,FALSE,FALSE,NULL);
COMM_WaitCommEvent(hFile, lpdwEvents, &ov);
if(GetLastError()!=STATUS_PENDING)
{
CloseHandle(ov.hEvent);
return FALSE;
}
/* wait for the overlapped to complete */
ret = GetOverlappedResult(hFile, &ov, NULL, TRUE);
CloseHandle(ov.hEvent);
return ret;
}
/***********************************************************************
* GetCommProperties (KERNEL32.286)
*
* 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("(%d %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 ;
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 CHAR lpszSerialUI[] = "serialui.dll";
/***********************************************************************
* CommConfigDialogA (KERNEL32.140)
*
* 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 */
HANDLE hWnd, /* [in] parent window for the dialog */
LPCOMMCONFIG lpCommConfig) /* [out] pointer to struct to fill */
{
FARPROC lpfnCommDialog;
HMODULE hConfigModule;
BOOL r;
TRACE("(%p %x %p)\n",lpszDevice, hWnd, lpCommConfig);
hConfigModule = LoadLibraryA(lpszSerialUI);
if(!hConfigModule)
return FALSE;
lpfnCommDialog = GetProcAddress(hConfigModule, (LPCSTR)3L);
if(!lpfnCommDialog)
return FALSE;
r = lpfnCommDialog(lpszDevice,hWnd,lpCommConfig);
/* UnloadLibrary(hConfigModule); */
return r;
}
/***********************************************************************
* CommConfigDialogW (KERNEL32.141)
*
* see CommConfigDialogA for more info
*/
BOOL WINAPI CommConfigDialogW(
LPCWSTR lpszDevice, /* [in] name of communications device */
HANDLE hWnd, /* [in] parent window for the dialog */
LPCOMMCONFIG lpCommConfig) /* [out] pointer to struct to fill */
{
BOOL r;
LPSTR lpDeviceA;
lpDeviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpszDevice );
if(lpDeviceA)
return FALSE;
r = CommConfigDialogA(lpDeviceA,hWnd,lpCommConfig);
HeapFree( GetProcessHeap(), 0, lpDeviceA );
return r;
}
/***********************************************************************
* GetCommConfig (KERNEL32.283)
*
* 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
*
* The signature is missing a the parameter for the size of the COMMCONFIG
* structure/buffer it should be
* BOOL WINAPI GetCommConfig(HANDLE hFile,LPCOMMCONFIG lpCommConfig,LPDWORD lpdwSize)
*/
BOOL WINAPI GetCommConfig(
HANDLE hFile, /* [in] The communications device. */
LPCOMMCONFIG lpCommConfig) /* [out] The communications configuration of the device (if it fits). */
#if 0 /* FIXME: Why is this "commented" out? */
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. */
#endif
{
BOOL r;
TRACE("(%x %p)\n",hFile,lpCommConfig);
if(lpCommConfig == NULL)
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 (KERNEL32.617)
*
* Sets the configuration of the commications 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. */
{
TRACE("(%x %p)\n",hFile,lpCommConfig);
return SetCommState(hFile,&lpCommConfig->dcb);
}
/***********************************************************************
* SetDefaultCommConfigA (KERNEL32.638)
*
* 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 SetDefaultCommConfigA(
LPCSTR 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;
TRACE("(%p %p %lx)\n",lpszDevice, lpCommConfig, dwSize);
hConfigModule = LoadLibraryA(lpszSerialUI);
if(!hConfigModule)
return FALSE;
lpfnSetDefaultCommConfig = GetProcAddress(hConfigModule, (LPCSTR)4L);
if(! lpfnSetDefaultCommConfig)
return TRUE;
r = lpfnSetDefaultCommConfig(lpszDevice, lpCommConfig, dwSize);
/* UnloadLibrary(hConfigModule); */
return r;
}
/***********************************************************************
* SetDefaultCommConfigW (KERNEL32.639)
*
* Initializes the default configuration for the specified
* communication device. (unicode)
*
* RETURNS
*
*/
BOOL WINAPI SetDefaultCommConfigW(
LPCWSTR 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;
LPSTR lpDeviceA;
TRACE("(%s %p %lx)\n",debugstr_w(lpszDevice),lpCommConfig,dwSize);
lpDeviceA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpszDevice );
if(lpDeviceA)
return FALSE;
r = SetDefaultCommConfigA(lpDeviceA,lpCommConfig,dwSize);
HeapFree( GetProcessHeap(), 0, lpDeviceA );
return r;
}
/***********************************************************************
* GetDefaultCommConfigA (KERNEL32.313)
*
* 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 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. */
{
LPDCB lpdcb = &(lpCC->dcb);
char temp[40];
if (strncasecmp(lpszName,"COM",3)) {
ERR("not implemented for <%s>\n", lpszName);
return FALSE;
}
if (!ValidCOMPort(lpszName[3]-'1'))
return FALSE;
TRACE("(%s %p %ld)\n", 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;
(void) sprintf( temp, "COM%c:38400,n,8,1", lpszName[3]);
FIXME("setting %s as default\n", temp);
return BuildCommDCBA( temp, lpdcb);
}
/**************************************************************************
* GetDefaultCommConfigW (KERNEL32.314)
*
* 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. */
{
BOOL ret = FALSE;
LPSTR lpszNameA;
TRACE("(%p,%p,%ld)\n",lpszName,lpCC,*lpdwSize);
lpszNameA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpszName );
if (lpszNameA)
{
ret=GetDefaultCommConfigA(lpszNameA,lpCC,lpdwSize);
HeapFree( GetProcessHeap(), 0, lpszNameA );
}
return ret;
}
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