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SERIAL: Find more serial port names on Unix, remove unused ioctl code

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Clem Cole 2022-01-12 12:25:43 -08:00 • committed by Mark Pizzolato
parent b24e3580dc
commit afc5313e16
1 changed files with 31 additions and 70 deletions
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101
sim_serial.c
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@ -582,7 +582,7 @@ COMMCONFIG commdefault;
DWORD error;
DWORD commsize = sizeof (commdefault);
COMMTIMEOUTS cto;
char dosname[1028];
char win32name[1028];
if (!GetDefaultCommConfig (name, &commdefault, &commsize)) { /* get default comm parameters */
error = GetLastError (); /* function failed; get error */
@ -593,10 +593,8 @@ if (!GetDefaultCommConfig (name, &commdefault, &commsize)) { /* get default c
return INVALID_HANDLE; /* indicate bad port name */
}
strncpy(dosname, "\\\\.\\", 4);
strncat(dosname, name, sizeof(dosname));
hPort = CreateFile (dosname, GENERIC_READ | GENERIC_WRITE, /* open the port */
snprintf (win32name, sizeof (win32name), "\\\\.\\%s", name);
hPort = CreateFile (win32name, GENERIC_READ | GENERIC_WRITE, /* open the port */
0, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
if (hPort == INVALID_HANDLE_VALUE) { /* open failed? */
@ -966,18 +964,19 @@ if (1) {
strcmp(namelist[i]->d_name, "..")) {
char path[1024], devicepath[1024], driverpath[1024];
sprintf (path, "/sys/class/tty/%s", namelist[i]->d_name);
sprintf (devicepath, "/sys/class/tty/%s/device", namelist[i]->d_name);
sprintf (driverpath, "/sys/class/tty/%s/device/driver", namelist[i]->d_name);
snprintf (path, sizeof (path), "/sys/class/tty/%s", namelist[i]->d_name);
snprintf (devicepath, sizeof (devicepath), "/sys/class/tty/%s/device", namelist[i]->d_name);
snprintf (driverpath, sizeof (driverpath), "/sys/class/tty/%s/device/driver", namelist[i]->d_name);
if ((lstat(devicepath, &st) == 0) && S_ISLNK(st.st_mode)) {
char buffer[1024];
memset (buffer, 0, sizeof(buffer));
if (readlink(driverpath, buffer, sizeof(buffer)) > 0) {
sprintf (list[ports].name, "/dev/%s", basename (path));
snprintf (list[ports].name, sizeof (list[ports].name), "/dev/%s", basename (path));
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
if ((ports < max) && /* room for another? */
(isatty (port))) /* is device a TTY? */
++ports;
close (port);
}
@ -990,7 +989,7 @@ if (1) {
}
#elif defined(__hpux)
for (i=0; (ports < max) && (i < 64); ++i) {
sprintf (list[ports].name, "/dev/tty%dp%d", i/8, i%8);
snprintf (list[ports].name, sizeof (list[ports].name), "/dev/tty%dp%d", i/8, i%8);
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
@ -999,44 +998,27 @@ for (i=0; (ports < max) && (i < 64); ++i) {
}
}
#else /* Non Linux/HP-UX, just try some well known device names */
/* modern UNIX serial port names - usually USB */
static char *serial_unix_serial_names[] = { "S", "U", "USB", ".serial", ".usbserial", NULL};
char **sp;
for (sp = serial_unix_serial_names; *sp; sp++) {
for (i=0; (ports < max) && (i <= 64); ++i) {
if (i < 64)
snprintf (list[ports].name, sizeof (list[ports].name), "/dev/tty%s%d", *sp, i);
else /* no trailing number */
snprintf (list[ports].name, sizeof (list[ports].name), "/dev/tty%s", *sp);
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
++ports;
close (port);
}
}
}
/* now the traditional UNIX serial port names */
for (i=0; (ports < max) && (i < 64); ++i) {
sprintf (list[ports].name, "/dev/ttyS%d", i);
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
++ports;
close (port);
}
}
for (i=0; (ports < max) && (i < 64); ++i) {
sprintf (list[ports].name, "/dev/ttyUSB%d", i);
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
++ports;
close (port);
}
}
for (i=1; (ports < max) && (i < 64); ++i) {
sprintf (list[ports].name, "/dev/tty.serial%d", i);
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
++ports;
close (port);
}
}
for (i=0; (ports < max) && (i < 64); ++i) {
sprintf (list[ports].name, "/dev/tty%02d", i);
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
++ports;
close (port);
}
}
for (i=0; (ports < max) && (i < 8); ++i) {
sprintf (list[ports].name, "/dev/ttyU%d", i);
snprintf (list[ports].name, sizeof (list[ports].name), "/dev/tty%02d", i);
port = open (list[ports].name, O_RDWR | O_NOCTTY | O_NONBLOCK); /* open the port */
if (port != -1) { /* open OK? */
if (isatty (port)) /* is device a TTY? */
@ -1044,6 +1026,7 @@ for (i=0; (ports < max) && (i < 8); ++i) {
close (port);
}
}
#endif
return ports;
}
@ -1127,10 +1110,6 @@ if (tcgetattr (port, &tio)) { /* get the terminal attr
return INVALID_HANDLE; /* and return failure to caller */
}
// which of these methods is best?
#if 1
tio.c_iflag = (tio.c_iflag & ~i_clear) | i_set; /* configure the serial line for raw mode */
tio.c_oflag = (tio.c_oflag & ~o_clear) | o_set;
tio.c_cflag = (tio.c_cflag & ~c_clear) | c_set;
@ -1142,24 +1121,6 @@ tio.c_cc[VMIN] = 1;
tio.c_cc[VTIME] = 0;
#endif
#elif 0
tio.c_iflag &= ~(IGNBRK | BRKINT | INPCK | ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXOFF);
tio.c_iflag |= PARMRK | IGNPAR;
tio.c_oflag &= ~(OPOST);
tio.c_cflag &= ~(HUPCL);
tio.c_cflag |= CREAD | CLOCAL;
tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL | NOFLSH | TOSTOP | IEXTEN);
#elif 0
tio.c_iflag = PARMRK | IGNPAR;
tio.c_oflag = 0;
tio.c_cflag = tio.c_cflag | CLOCAL | CREAD;
tio.c_lflag = 0;
#endif
if (tcsetattr (port, TCSANOW, &tio)) { /* set the terminal attributes */
sim_error_serial ("tcsetattr", errno); /* function failed; report unexpected error */
close (port); /* close the port */