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rockOS/kernel/include/rockos/timer.h
2022-07-21 21:59:23 +03:00

34 lines
1.0 KiB
C

/**
* PIT section header of rockOS
* Copyright (C) 2022 Furkan Mudanyali
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, _either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#define SUBTICKS_PER_TICK 100
#define PIT_0 0x40
#define PIT_1 0x41
#define PIT_2 0x42
#define PIT_CONTROL 0x43
#define PIT_MASK 0xFF
#define PIT_SCALE 1193180
#define PIT_SET 0x36
void timer_phase(uint32_t hz);
void timer_handler(void* frame);
uint64_t get_ticks();