int main(void)
{
puts("PIR motion sensor test application\n");
printf("Initializing PIR sensor at GPIO_%ld... ", (long)PIR_GPIO);
if (pir_init(&dev, PIR_GPIO) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return 1;
}
#if TEST_PIR_POLLING
puts("Printing sensor state every second.");
while (1) {
printf("Status: %s\n", pir_get_status(&dev) == PIR_STATUS_LO ? "lo" : "hi");
vtimer_usleep(1000 * 1000);
}
#else
thread_create(
pir_handler_stack, sizeof(pir_handler_stack), THREAD_PRIORITY_MAIN - 1,
CREATE_WOUT_YIELD | CREATE_STACKTEST,
pir_handler, NULL, "pir_handler");
#endif
return 0;
}
static void pir_send_msg(pir_t *dev, pir_event_t event)
{
DEBUG("pir_send_msg\n");
msg_t m = { .type = event, .content.ptr = (char*) dev, };
int ret = msg_send_int(&m, dev->msg_thread_pid);
DEBUG("pir_send_msg: msg_send_int: %i\n", ret);
switch (ret) {
case 0:
DEBUG("pir_send_msg: msg_thread_pid not receptive, event is lost");
break;
case 1:
DEBUG("pir_send_msg: OK");
break;
case -1:
DEBUG("pir_send_msg: msg_thread_pid is gone, clearing it");
dev->msg_thread_pid = KERNEL_PID_UNDEF;
break;
}
}
static void pir_callback(void *arg)
{
DEBUG("pir_callback: %p\n", arg);
pir_t *dev = (pir_t*) arg;
if (dev->msg_thread_pid != KERNEL_PID_UNDEF) {
pir_send_msg(dev, pir_get_status(dev));
}
}
int main(void)
{
puts("PIR motion sensor test application\n");
printf("Initializing red LED at GPIO_%i... ", GPIO_LED_RED);
led_red = GPIO_LED_RED;
if (gpio_init_out(led_red, GPIO_NOPULL) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return 1;
}
gpio_clear(led_red);
printf("Initializing green LED at GPIO_%i... ", GPIO_LED_GREEN);
led_green = GPIO_LED_GREEN;
if (gpio_init_out(led_green, GPIO_NOPULL) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return 1;
}
gpio_clear(led_green);
printf("Initializing PIR sensor at GPIO_%i... ", PIR_GPIO);
if (pir_init(&pir, PIR_GPIO) == 0) {
puts("[OK]\n");
}
else {
puts("[Failed]");
return 1;
}
kernel_pid_t pir_handler_pid = thread_create(
pir_handler_stack, sizeof(pir_handler_stack), PRIORITY_MAIN - 1,
CREATE_WOUT_YIELD | CREATE_STACKTEST,
pir_handler, NULL, "pir_handler");
#if TEST_PIR_POLLING
puts("Checking sensor state every half second.");
pir_event_t status_old;
while (1) {
pir_event_t status = pir_get_status(&pir);
if (status != status_old) {
msg_t m = { .type = status, .content.ptr = (void*)&pir, };
msg_send(&m, pir_handler_pid, 0);
}
status_old = status;
vtimer_usleep(1000 * 500);
}
#endif
return 0;
}
