void gps_tweaks_shutdown_hook()
{
if (gps_powersave_tweak)
{
/* GPS internal? we should restore at next boot */
/* any other value? do not restore */
config_flag_file_setting_save(get_gps_flag_file(), gps_state == GPS_INTERNAL);
/* internal GPS enabled? turn it off to save battery power */
if (gps_state == GPS_INTERNAL)
{
gps_disable();
}
}
}
static void schedule(enum sys_message msg)
{
// battery related
if (rtca_time.sys > adc_check_next) {
adc_read();
adc_check_next = rtca_time.sys + adc_check_interval;
if ((stat.v_raw > 400) && (stat.v_raw < 550)) {
if (CHARGING_STOPPED) {
if (stat.should_charge) {
CHARGE_DISABLE;
stat.should_charge = false;
adc_check_next = rtca_time.sys + 300;
} else {
if (stat.v_bat < 390) {
CHARGE_ENABLE;
stat.should_charge = true;
charge_start = rtca_time.sys;
}
}
} else {
if (rtca_time.sys > charge_start + 36000) {
CHARGE_DISABLE;
stat.should_charge = false;
adc_check_next = rtca_time.sys + 3600;
}
}
} else {
CHARGE_DISABLE;
stat.should_charge = false;
}
}
// GPS related
if (rtca_time.sys > gps_trigger_next) {
switch (gps_next_state) {
case MAIN_GPS_IDLE:
if (s.gps_loop_interval > s.gps_warmup_interval + 30) {
// when gps has OFF intervals
gps_disable();
gps_trigger_next = rtca_time.sys + s.gps_loop_interval - s.gps_warmup_interval - 2;
}
gps_next_state = MAIN_GPS_START;
break;
case MAIN_GPS_START:
gps_next_state = MAIN_GPS_INIT;
gps_enable();
break;
case MAIN_GPS_INIT:
if (s.gps_loop_interval > s.gps_warmup_interval + 30) {
// gps had a power off interval
gps_trigger_next = rtca_time.sys + s.gps_warmup_interval - s.gps_invalidate_interval - 3;
uart0_tx_str((char *)gps_init, 51);
} else {
// gps was on all the time
gps_trigger_next = rtca_time.sys + s.gps_loop_interval - s.gps_invalidate_interval - 3;
if (rtca_time.sys > gps_reinit_next) {
gps_reinit_next = rtca_time.sys + gps_reinit_interval;
uart0_tx_str((char *)gps_init, 51);
}
}
gps_next_state = MAIN_GPS_PDOP_RST;
// zero out all the old data
memset(&mc_f, 0, sizeof(mc_f));
break;
case MAIN_GPS_PDOP_RST:
gps_trigger_next = rtca_time.sys + s.gps_invalidate_interval - 1;
gps_next_state = MAIN_GPS_STORE;
mc_f.pdop = 9999;
break;
case MAIN_GPS_STORE:
if (mc_f.fix) {
// save all info to f-ram
store_pkt();
}
gps_next_state = MAIN_GPS_IDLE;
break;
}
}
// GPRS related
// force the HTTP POST from time to time
if (rtca_time.sys > gprs_tx_next) {
if (gprs_tx_trig & TG_NOW_MOVING) {
gprs_tx_next = rtca_time.sys + s.gprs_moving_tx_interval;
} else {
gprs_tx_next = rtca_time.sys + s.gprs_static_tx_interval;
}
sim900.flags |= TX_FIX_RDY;
}
if (sim900.flags & BLACKOUT) {
if (rtca_time.sys > gprs_blackout_lift) {
sim900.flags &= ~BLACKOUT;
}
}
if (((rtca_time.sys > gprs_trigger_next) || (sim900.flags & TX_FIX_RDY)) &&
!(sim900.flags & TASK_IN_PROGRESS)) {
// time to act
adc_read();
gprs_trigger_next = rtca_time.sys + s.gprs_loop_interval;
if (stat.v_bat > 350) {
#ifndef DEBUG_GPS
// if battery voltage is below ~3.4v
// the sim will most likely lock up while trying to TX
if (!(sim900.flags & BLACKOUT)) {
sim900_exec_default_task();
}
#endif
}
}
}
