/*
* ======== SENSORTAG_CC2650_initGeneral ========
*/
Void SENSORTAG_CC2650_initGeneral(Void)
{
/* force power on AUX - this will be released when entering sleep mode */
AONWUCAuxWakeupEvent(AONWUC_AUX_WAKEUP);
/* enable the AUX oscillator clock */
AUXWUCClockEnable(AUX_WUC_OSCCTRL_CLOCK);
while(AUXWUCClockStatus(AUX_WUC_OSCCTRL_CLOCK) != AUX_WUC_CLOCK_READY)
{ }
/* This application will not be using the AUX domain out of boot
* and we will leave out clock for optimal power conservation */
AONWUCAuxPowerDownConfig(AONWUC_NO_CLOCK);
/*
* Source the LF clock from the low frequency XTAL_OSC.
* HF and MF are sourced from the high frequency RC_OSC.
*/
OSCClockSourceSet(OSC_SRC_CLK_LF, OSC_XOSC_LF);
OSCClockSourceSet(OSC_SRC_CLK_MF | OSC_SRC_CLK_HF, OSC_RCOSC_HF);
/*
* Check if already sourcing the HF clock from RC_OSC.
* If a switch of the clock source is not required, then the call to ROM
* will loop forever.
*/
if(OSCClockSourceGet(OSC_SRC_CLK_HF) != OSC_RCOSC_HF)
{
OSCHfSourceSwitch();
}
/* enable DCDC */
PowerCtrlSourceSet(PWRCTRL_PWRSRC_DCDC);
/* make sure AON accesses are in sync and enable powerdown on AUX */
SysCtrlAonSync();
AUXWUCPowerCtrl(AUX_WUC_POWER_DOWN);
}
/*
* ======== Power_shutdown ========
*/
Power_Status Power_shutdown(UArg arg)
{
Power_Status status = Power_EFAIL;
Bool exitNow = FALSE;
UInt32 constraints;
UInt hwiKey;
/* make sure shutdown request doesn't violate a constraint */
constraints = Power_getConstraintInfo();
if ((constraints & (Power_SD_DISALLOW)) != 0) {
status = Power_ECHANGE_NOT_ALLOWED;
}
if (status == Power_EFAIL) {
/* make sure Power is not still busy with a previous transition */
hwiKey = Hwi_disable();
if (Power_module->state == Power_ACTIVE) {
/* set new transition state to entering shutdown */
Power_module->state = Power_SHUTDOWN;
}
else {
exitNow = TRUE;
}
Hwi_restore(hwiKey);
if (exitNow == TRUE) {
status = Power_EBUSY;
}
else {
/* disable interrupts as start the shutdown sequence */
Hwi_disable();
/* signal all clients registered for pre-shutdown notification */
status = Power_notify(Power_ENTERING_SHUTDOWN);
/* check for any error */
if (status != Power_SOK) {
Power_module->state = Power_ACTIVE;
CPUcpsie();
return (status);
}
/* proceed with shutdown sequence ... */
/* switch to RCOSC_HF and RCOSC_LF */
OSCInterfaceEnable();
if(OSCClockSourceGet(OSC_SRC_CLK_HF) != OSC_RCOSC_HF) {
OSCClockSourceSet(OSC_SRC_CLK_HF | OSC_SRC_CLK_MF,
OSC_RCOSC_HF);
while(!OSCHfSourceReady());
OSCHfSourceSwitch();
}
OSCClockSourceSet(OSC_SRC_CLK_LF,OSC_RCOSC_LF);
while(OSCClockSourceGet(OSC_SRC_CLK_LF) != OSC_RCOSC_LF);
OSCInterfaceDisable();
/* make sure DMA and CRYTO clocks are off in deep-sleep */
PRCMPeripheralDeepSleepDisable(PRCM_PERIPH_CRYPTO);
PRCMPeripheralDeepSleepDisable(PRCM_PERIPH_UDMA);
PRCMLoadSet();
while(!PRCMLoadGet()){};
/* power OFF AUX and disconnect from bus */
AUXWUCPowerCtrl(AUX_WUC_POWER_OFF);
/* remove AUX force ON */
HWREG(AON_WUC_BASE + AON_WUC_O_AUXCTL) &=
~AON_WUC_AUXCTL_AUX_FORCE_ON;
/*
* reset AON event source IDs to avoid pending events powering
* on MCU/AUX
*/
HWREG(AON_EVENT_BASE + AON_EVENT_O_MCUWUSEL) = 0x3F3F3F3F;
HWREG(AON_EVENT_BASE + AON_EVENT_O_AUXWUSEL) = 0x003F3F3F;
/* sync AON */
HWREG(AON_RTC_BASE + AON_RTC_O_SYNC);
/*
* enable shutdown - this latches the IOs, so configuration of
* IOCFGx registers must be done prior to this
*/
AONWUCShutDownEnable();
/* sync AON */
HWREG(AON_RTC_BASE + AON_RTC_O_SYNC);
/* wait until AUX powered off */
while (AONWUCPowerStatusGet() & AONWUC_AUX_POWER_ON);
/* request to power off MCU when go to deep sleep */
PRCMMcuPowerOff();
/* turn off power domains inside MCU VD (BUS, FL_BUS, RFC, CPU) */
PRCMPowerDomainOff(PRCM_DOMAIN_RFCORE | PRCM_DOMAIN_SERIAL |
PRCM_DOMAIN_PERIPH | PRCM_DOMAIN_CPU | PRCM_DOMAIN_VIMS);
/* deep sleep to activate shutdown */
PRCMDeepSleep();
}
}
Power_module->state = Power_ACTIVE;
/* if get here failed to shutdown, return failure code */
return (Power_EFAIL);
}
