int xf86OpenSerial (pointer options)
{
APIRET rc;
HFILE fd, i;
ULONG action;
GLINECTL linectl;
char* dev = xf86FindOptionValue (options, "Device");
xf86MarkOptionUsedByName (options, "Device");
if (!dev) {
xf86Msg (X_ERROR, "xf86OpenSerial: No Device specified.\n");
return -1;
}
rc = DosOpen(dev, &fd, &action, 0, FILE_NORMAL, FILE_OPEN,
OPEN_ACCESS_READWRITE | OPEN_SHARE_DENYNONE, NULL);
if (rc) {
xf86Msg (X_ERROR,
"xf86OpenSerial: Cannot open device %s, rc=%d.\n",
dev, rc);
return -1;
}
/* check whether it is an async device */
if (_get_linectrl(fd,&linectl)) {
xf86Msg (X_WARNING,
"xf86OpenSerial: Specified device %s is not a tty\n",
dev);
DosClose(fd);
return -1;
}
/* set up default port parameters */
_set_baudrate(fd, 9600);
linectl.databits = 8;
linectl.parity = 0;
linectl.stopbits = 0;
_set_linectl(fd, &linectl);
if (xf86SetSerial (fd, options) == -1) {
DosClose(fd);
return -1;
}
return fd;
}
int
xf86OpenSerial(XF86OptionPtr options)
{
struct termios t;
int fd, i;
char *dev;
dev = xf86SetStrOption(options, "Device", NULL);
if (!dev) {
xf86Msg(X_ERROR, "xf86OpenSerial: No Device specified.\n");
return -1;
}
fd = xf86CheckIntOption(options, "fd", -1);
if (fd == -1)
SYSCALL(fd = open(dev, O_RDWR | O_NONBLOCK));
if (fd == -1) {
xf86Msg(X_ERROR,
"xf86OpenSerial: Cannot open device %s\n\t%s.\n",
dev, strerror(errno));
free(dev);
return -1;
}
if (!isatty(fd)) {
/* Allow non-tty devices to be opened. */
free(dev);
return fd;
}
/* set up default port parameters */
SYSCALL(tcgetattr(fd, &t));
t.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR
| IGNCR | ICRNL | IXON);
t.c_oflag &= ~OPOST;
t.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
t.c_cflag &= ~(CSIZE | PARENB);
t.c_cflag |= CS8 | CLOCAL;
cfsetispeed(&t, B9600);
cfsetospeed(&t, B9600);
t.c_cc[VMIN] = 1;
t.c_cc[VTIME] = 0;
SYSCALL(tcsetattr(fd, TCSANOW, &t));
if (xf86SetSerial(fd, options) == -1) {
SYSCALL(close(fd));
free(dev);
return -1;
}
SYSCALL(i = fcntl(fd, F_GETFL, 0));
if (i == -1) {
SYSCALL(close(fd));
free(dev);
return -1;
}
i &= ~O_NONBLOCK;
SYSCALL(i = fcntl(fd, F_SETFL, i));
if (i == -1) {
SYSCALL(close(fd));
free(dev);
return -1;
}
free(dev);
return fd;
}
