60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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Copyright (C) 2020 Ryan Caltabiano <https://github.com/XScorpion2>
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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If you happen to meet one of the copyright holders in a bar you are obligated
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to buy them one pint of beer.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "sync_timer.h"
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#include "keyboard.h"
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#if defined(SPLIT_KEYBOARD) && !defined(DISABLE_SYNC_TIMER)
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volatile int32_t sync_timer_ms;
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void sync_timer_init(void) {
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sync_timer_ms = 0;
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}
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void sync_timer_update(uint32_t time) {
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if (is_keyboard_master()) return;
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sync_timer_ms = time - timer_read32();
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}
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uint16_t sync_timer_read(void) {
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if (is_keyboard_master()) return timer_read();
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return sync_timer_read32();
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}
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uint32_t sync_timer_read32(void) {
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if (is_keyboard_master()) return timer_read32();
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return sync_timer_ms + timer_read32();
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}
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uint16_t sync_timer_elapsed(uint16_t last) {
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if (is_keyboard_master()) return timer_elapsed(last);
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return TIMER_DIFF_16(sync_timer_read(), last);
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}
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uint32_t sync_timer_elapsed32(uint32_t last) {
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if (is_keyboard_master()) return timer_elapsed32(last);
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return TIMER_DIFF_32(sync_timer_read32(), last);
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}
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#endif
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