int main (int argc, char *argv[]) {
struct timespec ts_curr;
signal(SIGINT, handle_signal);
signal(SIGTERM, handle_signal);
int fd= 0;
fd = serial_port_open(device_tty);
if (fd<0) {
printf("cannot open %s\n",device_tty);
return 0;
} else {
printf("%s is open with the file descriptor = %d\n",device_tty,fd);
}
unsigned char * buf = malloc(160);
memset(buf, 0, 160);
size_t len = 138, r=0;
while (start_sampling(fd)<0) {
printf("?");
}
volatile int s_idx=0;
long long last_time, delta_time, curr_time;
while (!stop_main) {
r = read(fd, buf, len);
if(r>0) {
if(buf[0] == (unsigned char)0x5) {
// do not print the same index twice
if (s_idx != get_unsigned_short(buf[4],buf[5])) {
// update curr_time on new Frame
clock_gettime(CLOCK_REALTIME, &ts_curr);
curr_time = ts_curr.tv_sec * 1000 +
ts_curr.tv_nsec / 1000000;
// update the last printed index
s_idx = get_unsigned_short(buf[4],buf[5]);
print_data(buf,r, curr_time);
delta_time = curr_time - last_time;
last_time = curr_time;
} else {
// TODO warn that a frame has the last frame's index
// printf("warning: last_idx: %d \tcurr_idx: %d\n",s_idx, get_unsigned_short(buf[4],buf[5]));
}
} else {
print_received_buffer(buf,r);
}
}
//sleep(1);
}
while(stop_sampling(fd)<0) {
printf("!");
}
if(fd>=0) {
printf("closing the file descriptor for %s\n",device_tty);
close(fd);
}
free(buf);
return 0;
}
void main(void) {
// Have to init the clock first
init_clock();
// These initialize variables
// Mostly just zeroing them
okay_to_transmit = FALSE;
server_wants_header = FALSE;
inside_non_blocking_interrupt = FALSE;
last_connect_time = 0;
check_in_period = 0;
setup_button_pressed = FALSE;
setup_button_time_trigger = 0;
setup_button_time_duration = 0;
main_mode = MAIN_MODE_INIT;
init_internal_wattage_sensor();
init_temperature_sensor();
init_audio_sensor();
init_light_sensor();
uint8_t itor = 0;
for (itor = 0; itor < NUMBER_OF_AUX_PORTS; itor++) {
aux_sensor[itor] = 0;
}
// These initialize functions and interrupts
init_timer();
init_time();
init_leds();
init_relay();
init_uart();
init_transmits();
init_buttons();
init_roving(&roving_call_back);
setup_button_time_trigger = new_time();
setup_button_time_duration = new_time();
time_set_seconds(setup_button_time_duration, 2);
_enable_interrupts();
// confirm roving works
while (!enter_command_mode()) {
reset_roving();
wait(500);
}
init_adc();
init_pll();
// This is for the check in
// If we are disconnected, we wait 5 seconds before trying to reconnect
last_connect_time = new_time();
check_in_period = new_time();
time_set_seconds(check_in_period, 5);
// And go!!!
set_led_anim(led_start);
// MAIN LOOP
while(1) {
handle_roving_input();
// Check if it a long hold
if(setup_button_pressed) {
// If the button is pressed down
if(time_cmp(global_time(), setup_button_time_trigger) >= 0) {
// If enough time has passed
if(in_setup_mode()) {
leave_setup_mode();
} else {
start_setup_mode();
}
// Only want to check this once
setup_button_pressed = FALSE;
}
}
// MAIN BEHAVIOR
// There is setup_mode and main_mode.
// Setup mode is for configuring WiFi SSID and PASS
// Main mode is for sampling
if (in_setup_mode()) {
if(main_mode != MAIN_MODE_SETUP) {
stop_sampling();
set_led_anim(led_setup_start);
main_mode = MAIN_MODE_SETUP;
}
do_setup();
} else if (in_main_mode()) { //regular mode
if(main_mode != MAIN_MODE_SAMPLE) {
set_led_anim(led_main_start);
start_sampling();
main_mode = MAIN_MODE_SAMPLE;
}
if(!is_associated()) {
associate();
} else if (!have_dhcp()) {
get_dhcp();
} else {
if(is_connected()) set_led_anim(led_main_connected);
else set_led_anim(led_main_assoc);
if(!is_connected() && (time_cmp(global_time(), last_connect_time) >= 0) ) {
// If we are not connected, and enough time has passed, connect
connect();
add_time_to_time(last_connect_time, check_in_period);
}
if(server_wants_header) {
led_ping();
exit_command_mode();
transmit_header();
wait(100);
}
if(okay_to_transmit && have_data_to_transmit()) {
led_ping();
exit_command_mode();
transmit_data();
}
}
} else {
main_mode = MAIN_MODE_INIT;
set_led_anim(led_error);
stop_sampling();
}
}
}
