/*******************************************************************************
* Obsluha preruseni casovace timer A0
*******************************************************************************/
interrupt (TIMERA0_VECTOR) Timer_A (void) {
global_time_update();
CCR0 += 0x80;
}
/**
* @brief Radio signal callback handler taking care of all signals in searching
* mode
*/
static nrf_radio_signal_callback_return_param_t* radio_signal_callback(uint8_t sig)
{
static uint32_t requested_extend_time = 0;
static uint32_t successful_extensions = 0;
static uint32_t timeslot_count = 0;
if (sig == NRF_RADIO_CALLBACK_SIGNAL_TYPE_START)
{
g_timeslot_forced_command = TS_FORCED_COMMAND_NONE;
}
else /* on forced command */
{
switch (g_timeslot_forced_command)
{
case TS_FORCED_COMMAND_STOP:
g_ret_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_END;
g_is_in_timeslot = false;
g_end_timer_triggered = false;
CLEAR_PIN(PIN_IN_TS);
event_handler_on_ts_end();
timeslot_count = 0;
return &g_ret_param;
case TS_FORCED_COMMAND_RESTART:
timeslot_order_earliest(TIMESLOT_SLOT_LENGTH, true);
g_is_in_timeslot = false;
g_end_timer_triggered = false;
CLEAR_PIN(PIN_IN_TS);
event_handler_on_ts_end();
radio_disable();
return &g_ret_param;
default:
break;
}
}
g_ret_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_NONE;
g_is_in_callback = true;
SET_PIN(PIN_IN_CB);
switch (sig)
{
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_START:
{
SET_PIN(PIN_IN_TS);
g_is_in_timeslot = true;
g_end_timer_triggered = false;
successful_extensions = 0;
if (timeslot_count > 0)
{
global_time_update();
}
mesh_packet_on_ts_begin();
event_handler_on_ts_begin();
timer_on_ts_begin();
tc_on_ts_begin();
g_negotiate_timeslot_length = TIMESLOT_SLOT_EXTEND_LENGTH;
g_timeslot_length = g_next_timeslot_length;
timer_order_cb_sync_exec(TIMER_INDEX_TS_END, g_timeslot_length - end_timer_margin(),
end_timer_handler);
/* attempt to extend our time right away */
timeslot_extend(g_negotiate_timeslot_length);
/* increase timeslot-count, but skip =0 on rollover */
if (!++timeslot_count)
{
timeslot_count++;
}
break;
}
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_RADIO:
/* send to radio control module */
SET_PIN(PIN_RADIO_SIGNAL);
radio_event_handler();
CLEAR_PIN(PIN_RADIO_SIGNAL);
break;
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_TIMER0:
/* send to timer control module */
SET_PIN(PIN_TIMER_SIGNAL);
timer_event_handler();
CLEAR_PIN(PIN_TIMER_SIGNAL);
break;
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_EXTEND_SUCCEEDED:
g_timeslot_length += requested_extend_time;
requested_extend_time = 0;
++successful_extensions;
timer_abort(TIMER_INDEX_TS_END);
timer_order_cb_sync_exec(TIMER_INDEX_TS_END, g_timeslot_length - end_timer_margin(),
end_timer_handler);
g_ret_param.callback_action = NRF_RADIO_SIGNAL_CALLBACK_ACTION_NONE;
TICK_PIN(PIN_EXTENSION_OK);
if (g_timeslot_length + g_negotiate_timeslot_length < TIMESLOT_MAX_LENGTH)
{
timeslot_extend(g_negotiate_timeslot_length);
}
else
{
/* done extending, check for new trickle event */
vh_on_timeslot_begin();
}
break;
case NRF_RADIO_CALLBACK_SIGNAL_TYPE_EXTEND_FAILED:
g_negotiate_timeslot_length >>= 1;
TICK_PIN(PIN_EXTENSION_FAIL);
if (g_negotiate_timeslot_length > 1000)
{
timeslot_extend(g_negotiate_timeslot_length);
}
else
{
/* done extending, check for new trickle event */
vh_on_timeslot_begin();
}
break;
default:
APP_ERROR_CHECK(NRF_ERROR_INVALID_STATE);
}
if (g_end_timer_triggered)
{
timeslot_order_earliest(TIMESLOT_SLOT_LENGTH, true);
g_is_in_timeslot = false;
g_end_timer_triggered = false;
CLEAR_PIN(PIN_IN_TS);
event_handler_on_ts_end();
radio_disable();
timer_on_ts_end();
}
else if (g_ret_param.callback_action == NRF_RADIO_SIGNAL_CALLBACK_ACTION_EXTEND)
{
requested_extend_time = g_ret_param.params.extend.length_us;
}
else
{
requested_extend_time = 0;
}
g_is_in_callback = false;
CLEAR_PIN(PIN_IN_CB);
return &g_ret_param;
}
/*******************************************************************************
* Aktualizace globalniho casu
*******************************************************************************/
unsigned long get_time() {
global_time_update();
return global_time;
}
