/******************************************************************************
Prepares system for power-save, power-down.
Power-down the mode is possible only when internal RC is used
Parameters:
none.
Returns:
-1 there is no possibility to power-down system.
******************************************************************************/
int HAL_Sleep(void)
{
if (INTERNAL_RC != halGetClockSource())
{
if (HAL_SLEEP_TIMER_IS_STOPPED == halSleepControl.sleepTimerState)
{ // sleep timer isn't started
return -1;
}
GPIO_RF_SLP_TR_make_in();
while (ASSR & HAL_ASSR_FLAGS);
if (!(TIMSK2 & (1 << OCIE2A)))
{ // compare interrupt is disabled
OCR2A = 0xFF;
while (ASSR & HAL_ASSR_FLAGS);
}
TCCR2A |= ((1 << COM2A1) | (1 << COM2A0)); // set OC2A on compare
while (ASSR & HAL_ASSR_FLAGS);
TCCR2B |= (1 << FOC2A); // force output to set OC2A
while (ASSR & HAL_ASSR_FLAGS);
TCCR2A &= ~((1 << COM2A1) | (1 << COM2A0)); // no compare
while (ASSR & HAL_ASSR_FLAGS);
TCCR2A |= (1 << COM2A1); // clear OC2A on compare
while (ASSR & HAL_ASSR_FLAGS);
}
halSleepControl.wakeupStation = HAL_SLEEP_MODE; // the reset of sign of entry to the sleep mode.
while (ASSR & HAL_ASSR_FLAGS);
halPostTask4(HAL_SLEEP);
return 0;
}
/**************************************************************************//**
\brief Switch on system power.
\param[in]
wakeupSource - wake up source
******************************************************************************/
void halPowerOn(const uint8_t wakeupSource)
{
halSleepControl.wakeupStation = HAL_ACTIVE_MODE;
halSleepControl.wakeupSource = wakeupSource;
if (INTERNAL_RC == halGetClockSource())
{
GPIO_RF_SLP_TR_clr();
}
else
{
GPIO_RF_SLP_TR_make_in();
TCCR2A &= ~((1 << COM2A1) | (1 << COM2A0)); // no compare
while (ASSR & HAL_ASSR_FLAGS);
}
GPIO_RF_SLP_TR_make_out();
#ifdef _HAL_USE_AMPLIFIER_
// set one on pin. Enable power amplifier.
GPIO_POW_AMPLF_SLP_set();
#endif
halPostTask4(HAL_WAKEUP);
}
/**************************************************************************//**
\brief Posts specific USART task.
\param[in]
taskId - unique identifier of the task to be posted.
******************************************************************************/
static void usbfifoPostTask(UsbfifoTaskId_t taskId)
{
usbfifoTaskBitMask |= (UsbfifoTaskBitMask_t)1 << taskId;
halPostTask4(HAL_EXT_HANDLER);
}
/**************************************************************************//**
\brief Takes account of the sleep interval.
\param[in]
interval - time of sleep
******************************************************************************/
void halAdjustSleepInterval(uint32_t interval)
{
halAppTime += interval;
halPostTask4(HAL_TIMER4_COMPA);
}
