xref: /aosp_15_r20/external/flashrom/include/custom_baud.h (revision 0d6140be3aa665ecc836e8907834fcd3e3b018fc)
1 /*
2  * This file is part of the flashrom project.
3  *
4  * Copyright (C) 2017 Urja Rannikko <[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 #ifndef __CUSTOM_BAUD_H__
18 #define __CUSTOM_BAUD_H__ 1
19 
20 struct baudentry {
21 	int flag;
22 	unsigned int baud;
23 };
24 
25 enum custom_baud_stage {
26 	BEFORE_FLAGS = 0,
27 	WITH_FLAGS,
28 	AFTER_FLAGS
29 };
30 
31 int set_custom_baudrate(int fd, unsigned int baud, const enum custom_baud_stage stage, void *tio_wanted);
32 
33 /* Returns 1 if non-exact rate would be used, and setting a custom rate is supported.
34    The baudtable must be in ascending order and terminated with a 0-baud entry. */
35 int use_custom_baud(unsigned int baud, const struct baudentry *baudtable);
36 
37 #endif
38