1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
3 /* serial port functions
5 * Author: Chris Toshok <toshok@ximian.com>
16 /* This is a copy of System.IO.Ports.Handshake */
21 RequestToSendXOnXOff = 3
24 /* This is a copy of System.IO.Ports.Parity */
33 /* This is a copy of System.IO.Ports.StopBits */
42 open_serial (char* devfile)
45 struct termios newtio;
47 fd = open (devfile, O_RDWR);
52 newtio.c_cflag = CLOCAL | CREAD;
57 tcflush(fd, TCIOFLUSH);
58 tcsetattr(fd,TCSANOW,&newtio);
60 fcntl (fd, F_SETFL, O_NONBLOCK);
66 close_serial (int unix_fd)
72 read_serial (int fd, guchar *buffer, int offset, int count, int timeout)
78 ufd.events = POLLHUP | POLLIN | POLLERR;
80 poll (&ufd, 1, timeout);
82 if ((ufd.revents & POLLIN) != POLLIN) {
86 n = read (fd, buffer + offset, count);
92 write_serial (int fd, guchar *buffer, int offset, int count, int timeout)
99 ufd.events = POLLHUP | POLLOUT | POLLERR;
101 poll (&ufd, 1, timeout);
103 if ((ufd.revents & POLLOUT) != POLLOUT) {
107 n = write (fd, buffer + offset, count);
111 discard_buffer (int fd, gboolean input)
113 tcflush(fd, input ? TCIFLUSH : TCOFLUSH);
117 set_attributes (int fd, int baud_rate, MonoParity parity, int dataBits, MonoStopBits stopBits, MonoHandshake handshake)
119 struct termios newtio;
121 tcgetattr (fd, &newtio);
124 case 230400: baud_rate = B230400; break;
125 case 115200: baud_rate = B115200; break;
126 case 57600: baud_rate = B57600; break;
127 case 38400: baud_rate = B38400; break;
128 case 19200: baud_rate = B19200; break;
129 case 9600: baud_rate = B9600; break;
130 case 4800: baud_rate = B4800; break;
131 case 2400: baud_rate = B2400; break;
132 case 1800: baud_rate = B1800; break;
133 case 1200: baud_rate = B1200; break;
134 case 600: baud_rate = B600; break;
135 case 300: baud_rate = B300; break;
136 case 200: baud_rate = B200; break;
137 case 150: baud_rate = B150; break;
138 case 134: baud_rate = B134; break;
139 case 110: baud_rate = B110; break;
140 case 75: baud_rate = B75; break;
149 case NoneParity: /* None */
150 newtio.c_iflag |= IGNPAR;
151 newtio.c_cflag &= ~(PARENB | PARODD);
154 newtio.c_iflag &= ~IGNPAR;
155 newtio.c_cflag |= PARENB | PARODD;
157 case Even: /* Even */
158 newtio.c_iflag &= ~(IGNPAR | PARODD);
159 newtio.c_cflag |= PARENB;
161 case Mark: /* Mark */
164 case Space: /* Space */
169 newtio.c_cflag &= ~CSIZE;
171 case 5: newtio.c_cflag |= CS5; break;
172 case 6: newtio.c_cflag |= CS6; break;
173 case 7: newtio.c_cflag |= CS7; break;
176 newtio.c_cflag |= CS8;
180 newtio.c_cflag &= ~CSTOPB;
186 /* do nothing, the default is one stop bit */
189 newtio.c_cflag |= CSTOPB;
191 case OnePointFive: /* OnePointFive */
196 newtio.c_iflag &= ~IXOFF;
197 newtio.c_oflag &= ~IXON;
199 newtio.c_cflag &= ~CRTSCTS;
200 #endif /* def CRTSCTS */
202 case NoneHandshake: /* None */
205 case RequestToSend: /* RequestToSend (RTS) */
207 newtio.c_cflag |= CRTSCTS;
208 #endif /* def CRTSCTS */
210 case RequestToSendXOnXOff: /* RequestToSendXOnXOff (RTS + XON/XOFF) */
212 newtio.c_cflag |= CRTSCTS;
213 #endif /* def CRTSCTS */
215 case XOnXOff: /* XOnXOff */
216 newtio.c_iflag |= IXOFF;
217 // newtio.c_oflag |= IXON;
221 if (cfsetospeed (&newtio, baud_rate) < 0 || cfsetispeed (&newtio, baud_rate) < 0 ||
222 tcsetattr (fd, TCSADRAIN, &newtio) < 0)
229 * mono internals should not be used here.
230 * this serial stuff needs to be implemented with icalls.
231 * make this at least compile until the code is moved elsewhere
232 * defined(linux) is wrong, too
235 list_serial_devices (void)
242 list_serial_devices (void)
246 /* Linux serial files are of the form ttyS[0-9]+ */
247 GSList *l, *list = NULL;
248 GDir* dir = g_dir_open ("/dev", 0, NULL);
249 const char *filename;
252 while ((filename = g_dir_read_name (dir))) {
254 if (!strncmp (filename, "ttyS", 4))
255 list = g_slist_append (list, g_strconcat ("/dev/", filename, NULL));
261 array = mono_array_new (mono_domain_get (), mono_get_string_class (), g_slist_length (list));
262 for (l = list; l; l = l->next) {
263 mono_array_set (array, gpointer, i++, mono_string_new (mono_domain_get (), (char*)l->data));
270 #warning "list_serial_devices isn't ported to this OS"