1 /* Copyright 2017 Fred Sundvik
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.
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.
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/>.
19 static uint32_t current_time = 0;
21 void timer_init(void) {current_time = 0;}
23 void timer_clear(void) {current_time = 0;}
25 uint16_t timer_read(void) { return current_time & 0xFFFF; }
26 uint32_t timer_read32(void) { return current_time; }
27 uint16_t timer_elapsed(uint16_t last) { return TIMER_DIFF_16(timer_read(), last); }
28 uint32_t timer_elapsed32(uint32_t last) { return TIMER_DIFF_32(timer_read32(), last); }
30 void set_time(uint32_t t) { current_time = t; }
31 void advance_time(uint32_t ms) { current_time += ms; }
33 void wait_ms(uint32_t ms) {