1 /*
2 * This file is part of the flashrom project.
3 *
4 * Copyright (C) 2022 Peter Stuge <[email protected]>
5 *
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 2 of the License, or
9 * (at your option) any later version.
10 *
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.
15 */
16
17 #include <termios.h>
18 #include <sys/ioctl.h>
19 #include <IOKit/serial/ioss.h>
20 #include <errno.h>
21
22 #include "custom_baud.h"
23
use_custom_baud(unsigned int baud,const struct baudentry * baudtable)24 int use_custom_baud(unsigned int baud, const struct baudentry *baudtable)
25 {
26 int i;
27
28 if (baud > 230400)
29 return 1;
30
31 for (i = 0; baudtable[i].baud; i++) {
32 if (baudtable[i].baud == baud)
33 return 0;
34
35 if (baudtable[i].baud > baud)
36 return 1;
37 }
38
39 return 1;
40 }
41
set_custom_baudrate(int fd,unsigned int baud,const enum custom_baud_stage stage,void * tio_wanted)42 int set_custom_baudrate(int fd, unsigned int baud, const enum custom_baud_stage stage, void *tio_wanted)
43 {
44 struct termios *wanted;
45 speed_t speed;
46
47 switch (stage) {
48 case BEFORE_FLAGS:
49 break;
50
51 case WITH_FLAGS:
52 wanted = tio_wanted;
53 return cfsetspeed(wanted, B19200);
54
55 case AFTER_FLAGS:
56 speed = baud;
57 return ioctl(fd, IOSSIOSPEED, &speed);
58 }
59
60 return 0;
61 }
62