Revision 25
fixed interrupt subscription, implemented interrupt handler
| timer.c | ||
|---|---|---|
| 5 | 5 |
|
| 6 | 6 |
#include "i8254.h" |
| 7 | 7 |
|
| 8 |
int no_interrupts = 0; |
|
| 9 |
|
|
| 10 | 8 |
int (timer_set_frequency)(uint8_t timer, uint32_t freq) {
|
| 11 | 9 |
|
| 12 | 10 |
// Frequencies out this range are not supported (by limitation of hardware) |
| ... | ... | |
| 53 | 51 |
int hook_id = 2; |
| 54 | 52 |
|
| 55 | 53 |
int (timer_subscribe_int)(uint8_t *bit_no) {
|
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*bit_no = hook_id; |
|
| 56 | 55 |
if(sys_irqsetpolicy(TIMER0_IRQ, IRQ_REENABLE, &hook_id)) return 1; |
| 57 |
*bit_no = hook_id; |
|
| 58 | 56 |
return 0; |
| 59 | 57 |
} |
| 60 | 58 |
|
| ... | ... | |
| 63 | 61 |
return 0; |
| 64 | 62 |
} |
| 65 | 63 |
|
| 64 |
uint32_t no_interrupts = 0; |
|
| 66 | 65 |
void (timer_int_handler)() {
|
| 67 | 66 |
no_interrupts++; |
| 68 | 67 |
} |
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