2 * This file is part of the sigrok project.
4 * Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include <sys/types.h>
35 // FIXME: Must be moved, or rather passed as function argument.
40 char *serial_port_glob[] = {
52 GSList *list_serial_ports(void)
62 for (i = 0; serial_port_glob[i]; i++) {
63 if (glob(serial_port_glob[i], 0, NULL, &g))
65 for (j = 0; j < g.gl_pathc; j++)
66 ports = g_slist_append(ports, strdup(g.gl_pathv[j]));
74 int serial_open(const char *pathname, int flags)
77 /* FIXME: Don't hardcode COM1. */
78 hdl = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, 0,
79 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
80 if (hdl == INVALID_HANDLE_VALUE) {
81 /* TODO: Error handling. */
85 return open(pathname, flags);
89 int serial_close(int fd)
99 * Flush serial port buffers (if any).
100 * Returns 0 upon success, -1 upon failure.
102 int serial_flush(int fd)
105 /* Returns non-zero upon success, 0 upon failure. */
106 if (PurgeComm(hdl, PURGE_RXCLEAR | PURGE_TXCLEAR) == 0)
111 /* Returns 0 upon success, -1 upon failure. */
112 return tcflush(fd, TCIOFLUSH);
116 void *serial_backup_params(int fd)
121 struct termios *term;
123 term = malloc(sizeof(struct termios));
130 void serial_restore_params(int fd, void *backup)
135 tcsetattr(fd, TCSADRAIN, (struct termios *)backup);
140 * flowcontrol 1 = rts/cts 2 = xon/xoff
141 * parity 0 = none, 1 = even, 2 = odd
143 int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
149 if (!GetCommState(hdl, &dcb)) {
150 /* TODO: Error handling. */
153 /* TODO: Rename 'speed' to 'baudrate'. */
155 /* TODO: Support for higher baud rates. */
157 dcb.BaudRate = CBR_115200;
160 dcb.BaudRate = CBR_57600;
163 dcb.BaudRate = CBR_38400;
166 dcb.BaudRate = CBR_19200;
169 dcb.BaudRate = CBR_9600;
172 /* TODO: Error handling. */
176 dcb.Parity = NOPARITY; /* TODO: Don't hardcode. */
177 dcb.StopBits = ONESTOPBIT; /* TODO: Don't hardcode. */
179 if (!SetCommState(hdl, &dcb)) {
180 /* TODO: Error handling. */
206 if (tcgetattr(fd, &term) < 0)
208 if (cfsetispeed(&term, baud) < 0)
211 term.c_cflag &= ~CSIZE;
223 term.c_cflag &= ~CSTOPB;
228 term.c_cflag |= CSTOPB;
233 term.c_cflag &= ~(IXON | IXOFF | CRTSCTS);
234 switch (flowcontrol) {
236 term.c_cflag |= IXON | IXOFF;
239 term.c_cflag |= CRTSCTS;
244 term.c_iflag &= ~IGNPAR;
245 term.c_cflag &= ~(PARODD | PARENB);
248 term.c_iflag |= IGNPAR;
251 term.c_cflag |= PARENB;
254 term.c_cflag |= PARENB | PARODD;
260 if (tcsetattr(fd, TCSADRAIN, &term) < 0)