Revision 25
fixed interrupt subscription, implemented interrupt handler
| lab2.c | ||
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#include <stdbool.h> |
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#include <stdint.h> |
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extern int no_interrupts; |
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int main(int argc, char *argv[]) {
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// sets the language of LCF messages (can be either EN-US or PT-PT) |
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lcf_set_language("EN-US");
|
| ... | ... | |
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return 0; |
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} |
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extern uint32_t no_interrupts; |
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int(timer_test_int)(uint8_t time) {
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int ipc_status, r; |
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message msg; |
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uint8_t hook = 0; |
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no_interrupts = 0; |
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uint8_t irq_set = 1; |
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int freq = 60; // better way to get the frequency of the timer???? |
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int freq = 60; // better way to get the frequency of the timer??? |
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printf("Hook pre: %x\n", hook);
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timer_subscribe_int(&hook); |
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printf("Hook pos: %x\n", hook);
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int irq_set = BIT(hook); |
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while (time) {
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/* Get a request message. */ |
| ... | ... | |
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if (is_ipc_notify(ipc_status)) { /* received notification */
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switch (_ENDPOINT_P(msg.m_source)) {
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case HARDWARE: /* hardware interrupt notification */ |
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printf("%x\n", msg.m_notify.interrupts);
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if (msg.m_notify.interrupts & irq_set) { /* subscribed interrupt */
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timer_int_handler(); |
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if (!(no_interrupts % freq)) {
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timer_print_elapsed_time(); |
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time--; |
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} |
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} |
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break; |
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default: |
| ... | ... | |
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} else { /* received standart message, not a notification */
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/* no standart message expected: do nothing */ |
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} |
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if (!(no_interrupts % freq)) {
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timer_print_elapsed_time(); |
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time--; |
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} |
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} |
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timer_unsubscribe_int(); |
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