FreeCalypso > hg > freecalypso-sw
diff loadtools/sercomm.c @ 7:aa1f6fe16fef
loadtools building blocks started
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Tue, 30 Apr 2013 07:19:48 +0000 |
parents | |
children | fea204bc7674 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/loadtools/sercomm.c Tue Apr 30 07:19:48 2013 +0000 @@ -0,0 +1,39 @@ +/* + * This module handles the establishment of serial communication + * with the target, i.e., the host-side termios stuff. + */ + +#include <sys/types.h> +#include <sys/file.h> +#include <sys/ioctl.h> +#include <termios.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +char *target_ttydev; +int target_fd; +struct termios target_termios; + +open_target_serial() +{ + target_fd = open(target_ttydev, O_RDWR|O_NONBLOCK); + if (target_fd < 0) { + perror(target_ttydev); + exit(1); + } + target_termios.c_iflag = IGNBRK; + target_termios.c_oflag = 0; + target_termios.c_cflag = CLOCAL|HUPCL|CREAD|CS8; + target_termios.c_lflag = 0; + target_termios.c_cc[VMIN] = 1; + target_termios.c_cc[VTIME] = 0; + /* start at B19200, as that's what we'll need to use initially */ + cfsetispeed(&target_termios, B19200); + cfsetospeed(&target_termios, B19200); + if (tcsetattr(target_fd, TCSAFLUSH, &target_termios) < 0) { + perror("initial tcsetattr on target"); + exit(1); + } + return 0; +}