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| author |  XScorpion2 <rcalt2vt@gmail.com> | 2019-08-25 14:37:55 -0500 |
|---|---|---|
| committer |  Drashna Jaelre <drashna@live.com> | 2019-08-25 12:37:55 -0700 |
| commit | 957070a6b5886719557b6880afa7e3716548c18a (patch) | |
| tree | 68adde454ad00f5c74538b0927f76b7db7afcb09 /tmk_core/common | |
| parent | f22c5c17b6fe069bec1241262a1c27eb89d3d3af (diff) | |
| download | qmk_firmware-957070a6b5886719557b6880afa7e3716548c18a.tar.gz | |
Added OLED Display autoscroll during periods of OLED data inactivity (#6546)
* Added OLED Display autoscroll during periods of OLED data inactivity.
* Fixing compile errors
* Feedback from review
Diffstat (limited to 'tmk_core/common')
| -rw-r--r-- | tmk_core/common/timer.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tmk_core/common/timer.h b/tmk_core/common/timer.h index fe23f87ae..a8dd85663 100644 --- a/tmk_core/common/timer.h +++ b/tmk_core/common/timer.h @@ -19,6 +19,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #define TIMER_H 1 #include <stdint.h> +#include <stdbool.h> #if defined(__AVR__) #include "avr/timer_avr.h" @@ -46,6 +47,16 @@ uint32_t timer_read32(void); uint16_t timer_elapsed(uint16_t last); uint32_t timer_elapsed32(uint32_t last); +// Utility functions to check if a future time has expired & autmatically handle time wrapping if checked / reset frequently (half of max value) +inline bool timer_expired(uint16_t current, uint16_t last) +{ + return current - last < 0x8000; +} + +inline bool timer_expired32(uint32_t current, uint32_t future) { + return current - future < 0x80000000; +} + #ifdef __cplusplus } #endif |