int timer_test_square(unsigned long freq){
if (timer_set_square(0, freq) == 0)
return 0;
return 1;
}
int timer_test_square(unsigned long freq) {
/* Get Timer 0 to work at a @freq frequency */
if(timer_set_square(0, freq) != 0){
printf("ERROR SETTING FREQUENCY ON TIMER 0\n");
return 1;
}
return 0;
}
int timer_test_int(unsigned long time)
{
int irq_set = timer_subscribe_int(); //subscreve e inicia as interrupções do timer0
timer_set_square(0,60); //coloca a frequencia a 60
int ipc_status;
int r;
message msg;
unsigned i = 0;
while( i < time) { // enquando a contagem é menor que o valor passado no parametro
/* Get a request message. */
if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0)
{
printf("driver_receive failed with: %d", r);
continue;
}
if (is_ipc_notify(ipc_status)) { /* received notification */
switch (_ENDPOINT_P(msg.m_source)) {
case HARDWARE: /* hardware interrupt notification */
if (msg.NOTIFY_ARG & irq_set)
{ /* subscribed interrupt */
timer_int_handler();
if (counter % 60 == 0) //a cada segundo (60 contagens a 60 de frequencia)
{
i++;
printf("%d", i); // imprime o valor do segundo.
printf("\n");
}
}
break;
default:
break; /* no other notifications expected: do nothing */
}
} else { /* received a standard message, not a notification */
/* no standard messages expected: do nothing */
}
}
if (timer_unsubscribe_int() != OK) //termina a subscrição, caso dê erro retorna 1
return 1;
return 0;
}
int set_repetitive_task(unsigned long freq, void(*func)())
{
if (doing_task) // Current task must be stopped first
{
return 1;
}
if (timer_subscribe_int())
{
return 1;
}
if (timer_set_square(0, freq))
{
return 1;
}
int r, ipc_status;
message msg;
time_counter = 0;
doing_task = true;
while (doing_task)
{
/* Get a request message. */
if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) {
continue;
}
if (is_ipc_notify(ipc_status)) { /* received notification */
switch (_ENDPOINT_P(msg.m_source)) {
case HARDWARE: /* hardware interrupt notification */
if (msg.NOTIFY_ARG & BIT(TIMER0_HOOK_BIT)) { /* subscribed interrupt */
timer_int_handler();
func();
}
break;
default:
break; /* no other notifications expected: do nothing */
}
} else { /* received a standard message, not a notification */
/* no standard messages expected: do nothing */
}
}
return 0;
}
int timer_test_square(unsigned long freq) {
timer_set_square(0, freq);
return 0;
}
