root / lab4 / timer.c @ 75
History | View | Annotate | Download (363 Bytes)
1 | 75 | up20180642 | #include <lcom/lcf.h> |
---|---|---|---|
2 | |||
3 | #include "timer.h" |
||
4 | |||
5 | #include "i8254.h" |
||
6 | |||
7 | int (subscribe_timer_interrupt)(uint8_t interrupt_bit, int *interrupt_id) { |
||
8 | if (interrupt_id == NULL) return 1; |
||
9 | *interrupt_id = interrupt_bit; |
||
10 | return (sys_irqsetpolicy(TIMER0_IRQ, IRQ_REENABLE, interrupt_id));
|
||
11 | } |
||
12 | |||
13 | int no_interrupts = 0; |
||
14 | void (timer_int_handler)() {
|
||
15 | no_interrupts++; |
||
16 | } |