xref: /aosp_15_r20/external/flashrom/include/custom_baud.h (revision 0d6140be3aa665ecc836e8907834fcd3e3b018fc)
1*0d6140beSAndroid Build Coastguard Worker /*
2*0d6140beSAndroid Build Coastguard Worker  * This file is part of the flashrom project.
3*0d6140beSAndroid Build Coastguard Worker  *
4*0d6140beSAndroid Build Coastguard Worker  * Copyright (C) 2017 Urja Rannikko <[email protected]>
5*0d6140beSAndroid Build Coastguard Worker  *
6*0d6140beSAndroid Build Coastguard Worker  * This program is free software; you can redistribute it and/or modify
7*0d6140beSAndroid Build Coastguard Worker  * it under the terms of the GNU General Public License as published by
8*0d6140beSAndroid Build Coastguard Worker  * the Free Software Foundation; either version 2 of the License, or
9*0d6140beSAndroid Build Coastguard Worker  * (at your option) any later version.
10*0d6140beSAndroid Build Coastguard Worker  *
11*0d6140beSAndroid Build Coastguard Worker  * This program is distributed in the hope that it will be useful,
12*0d6140beSAndroid Build Coastguard Worker  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13*0d6140beSAndroid Build Coastguard Worker  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14*0d6140beSAndroid Build Coastguard Worker  * GNU General Public License for more details.
15*0d6140beSAndroid Build Coastguard Worker  */
16*0d6140beSAndroid Build Coastguard Worker 
17*0d6140beSAndroid Build Coastguard Worker #ifndef __CUSTOM_BAUD_H__
18*0d6140beSAndroid Build Coastguard Worker #define __CUSTOM_BAUD_H__ 1
19*0d6140beSAndroid Build Coastguard Worker 
20*0d6140beSAndroid Build Coastguard Worker struct baudentry {
21*0d6140beSAndroid Build Coastguard Worker 	int flag;
22*0d6140beSAndroid Build Coastguard Worker 	unsigned int baud;
23*0d6140beSAndroid Build Coastguard Worker };
24*0d6140beSAndroid Build Coastguard Worker 
25*0d6140beSAndroid Build Coastguard Worker enum custom_baud_stage {
26*0d6140beSAndroid Build Coastguard Worker 	BEFORE_FLAGS = 0,
27*0d6140beSAndroid Build Coastguard Worker 	WITH_FLAGS,
28*0d6140beSAndroid Build Coastguard Worker 	AFTER_FLAGS
29*0d6140beSAndroid Build Coastguard Worker };
30*0d6140beSAndroid Build Coastguard Worker 
31*0d6140beSAndroid Build Coastguard Worker int set_custom_baudrate(int fd, unsigned int baud, const enum custom_baud_stage stage, void *tio_wanted);
32*0d6140beSAndroid Build Coastguard Worker 
33*0d6140beSAndroid Build Coastguard Worker /* Returns 1 if non-exact rate would be used, and setting a custom rate is supported.
34*0d6140beSAndroid Build Coastguard Worker    The baudtable must be in ascending order and terminated with a 0-baud entry. */
35*0d6140beSAndroid Build Coastguard Worker int use_custom_baud(unsigned int baud, const struct baudentry *baudtable);
36*0d6140beSAndroid Build Coastguard Worker 
37*0d6140beSAndroid Build Coastguard Worker #endif
38