First version of datalog for TorusTech

[soft/lpc82x/exanh] / host / exanh_datalog / serial_utils.c

diff --git a/host/exanh_datalog/serial_utils.c b/host/exanh_datalog/serial_utils.c
new file mode 100644 (file)
index 0000000..700c11b
--- /dev/null
+++ b/host/exanh_datalog/serial_utils.c
@@ -0,0 +1,59 @@
+/*********************************************************************
+ *
+ *   Serial utility functions
+ *
+ *
+ * Copyright 2012-2014 Nathael Pajani <nathael.pajani@ed3l.fr>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *********************************************************************/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+
+#define SERIAL_BAUD  B115200
+
+
+int serial_setup(char* name)
+{
+       struct termios tio;
+       int fd = -1;
+
+       /* Open serial port */
+       fd = open(name, O_RDWR | O_NONBLOCK);
+       if (fd < 0) {
+               perror("Unable to open communication with companion chip");
+               return -1;
+       }
+       /* Setup serial port */
+       memset(&tio, 0, sizeof(tio));
+       tio.c_cflag = CS8 | CREAD | CLOCAL;     /* 8n1, see termios.h for more information */
+       tio.c_cc[VMIN] = 1;
+       tio.c_cc[VTIME] = 5;
+       cfsetospeed(&tio, SERIAL_BAUD);
+       cfsetispeed(&tio, SERIAL_BAUD);
+       tcsetattr(fd, TCSANOW, &tio);
+
+       return fd;
+}
+