FreeCalypso > hg > freecalypso-sw
diff loadtools/sercomm.c @ 49:54392d1ea474
loadtools: first beginnings for the baud rate switching logic
| author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
|---|---|
| date | Sun, 23 Jun 2013 02:53:16 +0000 |
| parents | fea204bc7674 |
| children | f1df95eed62c |
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--- a/loadtools/sercomm.c Sun Jun 23 01:13:03 2013 +0000 +++ b/loadtools/sercomm.c Sun Jun 23 02:53:16 2013 +0000 @@ -10,11 +10,27 @@ #include <stdio.h> #include <stdlib.h> #include <unistd.h> +#include "baudrate.h" char *target_ttydev; int target_fd; struct termios target_termios; +struct baudrate baud_rate_table[] = { + /* the first listed rate will be our default */ + {"115200", B115200, 0}, + {"57600", B57600, 1}, + {"38400", B38400, 2}, + {"19200", B19200, 4}, + /* non-standard high baud rates "remapped" by CP2102 usb2serial IC */ + {"812500", B921600, -1}, + {"406250", B460800, -1}, + {"203125", B230400, -1}, + /* table search terminator */ + {NULL, B0, -1}, +}; +struct baudrate *current_baud_rate; + open_target_serial() { target_fd = open(target_ttydev, O_RDWR|O_NONBLOCK); @@ -38,12 +54,14 @@ return 0; } -switch_baud_rate(code) +switch_baud_rate(br) + struct baudrate *br; { - cfsetispeed(&target_termios, code); - cfsetospeed(&target_termios, code); + cfsetispeed(&target_termios, br->termios_code); + cfsetospeed(&target_termios, br->termios_code); if (tcsetattr(target_fd, TCSAFLUSH, &target_termios) < 0) { perror("tcsetattr to switch baud rate"); exit(1); } + current_baud_rate = br; }