root / lab3 / timer.c @ 198
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| 1 | 60 | up20180642 | #include <lcom/lcf.h> |
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| 3 | #include "timer.h" |
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| 4 | |||
| 5 | #include "i8254.h" |
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| 6 | |||
| 7 | int (subscribe_timer_interrupt)(uint8_t interrupt_bit, int *interrupt_id) { |
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| 8 | if (interrupt_id == NULL) return 1; |
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| 9 | *interrupt_id = interrupt_bit; |
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| 10 | return (sys_irqsetpolicy(TIMER0_IRQ, IRQ_REENABLE, interrupt_id));
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| 11 | } |
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| 12 | |||
| 13 | int no_interrupts = 0; |
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| 14 | void (timer_int_handler)() {
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| 15 | no_interrupts++; |
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| 16 | } |