keyboard stuff
auri.ee
1/*
2Copyright (C) 2020 Ryan Caltabiano <https://github.com/XScorpion2>
3
4Permission is hereby granted, free of charge, to any person obtaining a copy of
5this software and associated documentation files (the "Software"), to deal in
6the Software without restriction, including without limitation the rights to
7use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
8of the Software, and to permit persons to whom the Software is furnished to do
9so, subject to the following conditions:
10
11The above copyright notice and this permission notice shall be included in all
12copies or substantial portions of the Software.
13
14If you happen to meet one of the copyright holders in a bar you are obligated
15to buy them one pint of beer.
16
17THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23SOFTWARE.
24*/
25
26#include "sync_timer.h"
27#include "keyboard.h"
28
29#if defined(SPLIT_KEYBOARD) && !defined(DISABLE_SYNC_TIMER)
30volatile int32_t sync_timer_ms;
31
32void sync_timer_init(void) {
33 sync_timer_ms = 0;
34}
35
36void sync_timer_update(uint32_t time) {
37 if (is_keyboard_master()) return;
38 sync_timer_ms = time - timer_read32();
39}
40
41uint16_t sync_timer_read(void) {
42 if (is_keyboard_master()) return timer_read();
43 return sync_timer_read32();
44}
45
46uint32_t sync_timer_read32(void) {
47 if (is_keyboard_master()) return timer_read32();
48 return sync_timer_ms + timer_read32();
49}
50
51uint16_t sync_timer_elapsed(uint16_t last) {
52 if (is_keyboard_master()) return timer_elapsed(last);
53 return TIMER_DIFF_16(sync_timer_read(), last);
54}
55
56uint32_t sync_timer_elapsed32(uint32_t last) {
57 if (is_keyboard_master()) return timer_elapsed32(last);
58 return TIMER_DIFF_32(sync_timer_read32(), last);
59}
60#endif