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[Split] Sync Timer feature (qmk#10997)
A timer that is kept in sync between the halves of a split keyboard
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/* | ||
Copyright (C) 2020 Ryan Caltabiano <https://github.com/XScorpion2> | ||
Permission is hereby granted, free of charge, to any person obtaining a copy of | ||
this software and associated documentation files (the "Software"), to deal in | ||
the Software without restriction, including without limitation the rights to | ||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies | ||
of the Software, and to permit persons to whom the Software is furnished to do | ||
so, subject to the following conditions: | ||
The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
If you happen to meet one of the copyright holders in a bar you are obligated | ||
to buy them one pint of beer. | ||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
SOFTWARE. | ||
*/ | ||
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#include "sync_timer.h" | ||
#include "keyboard.h" | ||
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#if defined(SPLIT_KEYBOARD) && !defined(DISABLE_SYNC_TIMER) | ||
volatile int32_t sync_timer_ms; | ||
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void sync_timer_init(void) { sync_timer_ms = 0; } | ||
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void sync_timer_update(uint32_t time) { | ||
if (is_keyboard_master()) return; | ||
sync_timer_ms = time - timer_read32(); | ||
} | ||
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uint16_t sync_timer_read(void) { | ||
if (is_keyboard_master()) return timer_read(); | ||
return sync_timer_read32(); | ||
} | ||
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uint32_t sync_timer_read32(void) { | ||
if (is_keyboard_master()) return timer_read32(); | ||
return sync_timer_ms + timer_read32(); | ||
} | ||
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uint16_t sync_timer_elapsed(uint16_t last) { | ||
if (is_keyboard_master()) return timer_elapsed(last); | ||
return TIMER_DIFF_16(sync_timer_read(), last); | ||
} | ||
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uint32_t sync_timer_elapsed32(uint32_t last) { | ||
if (is_keyboard_master()) return timer_elapsed32(last); | ||
return TIMER_DIFF_32(sync_timer_read32(), last); | ||
} | ||
#endif |
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@@ -0,0 +1,54 @@ | ||
/* | ||
Copyright (C) 2020 Ryan Caltabiano <https://github.com/XScorpion2> | ||
Permission is hereby granted, free of charge, to any person obtaining a copy of | ||
this software and associated documentation files (the "Software"), to deal in | ||
the Software without restriction, including without limitation the rights to | ||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies | ||
of the Software, and to permit persons to whom the Software is furnished to do | ||
so, subject to the following conditions: | ||
The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
If you happen to meet one of the copyright holders in a bar you are obligated | ||
to buy them one pint of beer. | ||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
SOFTWARE. | ||
*/ | ||
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#pragma once | ||
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#include <stdint.h> | ||
#include "timer.h" | ||
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#ifdef __cplusplus | ||
extern "C" { | ||
#endif | ||
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#if defined(SPLIT_KEYBOARD) && !defined(DISABLE_SYNC_TIMER) | ||
void sync_timer_init(void); | ||
void sync_timer_update(uint32_t time); | ||
uint16_t sync_timer_read(void); | ||
uint32_t sync_timer_read32(void); | ||
uint16_t sync_timer_elapsed(uint16_t last); | ||
uint32_t sync_timer_elapsed32(uint32_t last); | ||
#else | ||
# define sync_timer_init() | ||
# define sync_timer_clear() | ||
# define sync_timer_update(t) | ||
# define sync_timer_read() timer_read() | ||
# define sync_timer_read32() timer_read32() | ||
# define sync_timer_elapsed(t) timer_elapsed(t) | ||
# define sync_timer_elapsed32(t) timer_elapsed32(t) | ||
#endif | ||
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#ifdef __cplusplus | ||
} | ||
#endif |