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qmk_firmware

custom branch of QMK firmware git clone https://anongit.hacktivis.me/git/qmk_firmware.git

timer.c (1789B)

    

  1. /* Copyright 2017 Fred Sundvik
  2.  *
  3.  * This program is free software: you can redistribute it and/or modify
  4.  * it under the terms of the GNU General Public License as published by
  5.  * the Free Software Foundation, either version 2 of the License, or
  6.  * (at your option) any later version.
  7.  *
  8.  * This program is distributed in the hope that it will be useful,
  9.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11.  * GNU General Public License for more details.
  12.  *
  13.  * You should have received a copy of the GNU General Public License
  14.  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15.  */
  17. #include "timer.h"
  18. #include <stdatomic.h>
  20. static atomic_uint_least32_t current_time      = 0;
  21. static atomic_uint_least32_t async_tick_amount = 0;
  22. static atomic_uint_least32_t access_counter    = 0;
  24. void simulate_async_tick(uint32_t t) {
  25.     async_tick_amount = t;
  26. }
  28. uint32_t timer_read_internal(void) {
  29.     return current_time;
  30. }
  32. uint32_t current_access_counter(void) {
  33.     return access_counter;
  34. }
  36. void reset_access_counter(void) {
  37.     access_counter = 0;
  38. }
  40. void timer_init(void) {
  41.     current_time      = 0;
  42.     async_tick_amount = 0;
  43.     access_counter    = 0;
  44. }
  46. void timer_clear(void) {
  47.     current_time      = 0;
  48.     async_tick_amount = 0;
  49.     access_counter    = 0;
  50. }
  52. uint16_t timer_read(void) {
  53.     return (uint16_t)timer_read32();
  54. }
  56. uint32_t timer_read32(void) {
  57.     if (access_counter++ > 0) {
  58.         current_time += async_tick_amount;
  59.     }
  60.     return current_time;
  61. }
  63. void set_time(uint32_t t) {
  64.     current_time   = t;
  65.     access_counter = 0;
  66. }
  68. void advance_time(uint32_t ms) {
  69.     current_time += ms;
  70.     access_counter = 0;
  71. }
  73. void wait_ms(uint32_t ms) {
  74.     advance_time(ms);
  75. }