static void _SYS_TMR_ProcessIsrClients(void)
{
int ix;
SYS_TMR_CLIENT_OBJECT* pClient;
bool isrLock;
OSAL_CRITSECT_DATA_TYPE critSect;
isrLock = _IsrTmrLock(&critSect);
pClient = sClientObjects + 0;
for ( ix = 0; ix < sizeof(sClientObjects)/sizeof(*sClientObjects); ix++, pClient++ )
{
if ( pClient->isrState == SYS_TMR_CLIENT_ISR_MARK_DEL)
{
_SYS_TMR_ClientDelete(pClient);
}
else if(pClient->isrState == SYS_TMR_CLIENT_ISR_MARK_INACTIVE)
{
pClient->isrEnable = 0;
pClient->currState = SYS_TMR_CLIENT_INACTIVE;
}
}
_IsrTmrUnlock(isrLock, critSect);
}
uint32_t SYS_TMR_ObjectCountGet ( SYS_TMR_HANDLE handle, uint32_t* pRateMs)
{
uint32_t obCount;
SYS_TMR_CLIENT_OBJECT * timerObj = _SYS_TMR_ClientCheckSrvLock(handle);
if(timerObj)
{
if(pRateMs)
{ // transform to ms
*pRateMs = (timerObj->tuRate * 1000) / SYS_TMR_UNIT_RESOLUTION;
}
obCount = timerObj->tuCount;
if(obCount == 0 && timerObj->flags.auto_del != 0)
{ // timed out, delete it
_SYS_TMR_ClientDelete(timerObj);
}
_SYS_TMR_ClientSrvUnlock();
// round up so that don't return 0 if there are still counts
return (obCount * 1000 + SYS_TMR_UNIT_RESOLUTION - 1) / SYS_TMR_UNIT_RESOLUTION;
}
return -1;
}
void SYS_TMR_Deinitialize ( SYS_MODULE_OBJ object )
{
int ix;
// we're up and running
// make sure no new clients are accepted
_UserGblLock();
// now kill all clients
DRV_TMR_Stop(sSysTmrObject.driverHandle);
DRV_TMR_Alarm16BitDeregister ( sSysTmrObject.driverHandle);
SYS_TMR_CLIENT_OBJECT* pClient = sClientObjects + 0;
for ( ix = 0; ix < sizeof(sClientObjects)/sizeof(*sClientObjects); ix++, pClient++ )
{
pClient->isrEnable = 0;
if ( pClient->currState != SYS_TMR_CLIENT_FREE)
{
_SYS_TMR_ClientDelete(pClient);
}
}
_UserGblLockDelete();
sSysTmrObject.status = SYS_STATUS_UNINITIALIZED;
}
void SYS_TMR_ObjectDelete ( SYS_TMR_HANDLE handle)
{
SYS_TMR_CLIENT_OBJECT * timerObj = _SYS_TMR_ClientCheckSrvLock(handle);
if(timerObj)
{ // valid client; lock other users access
_SYS_TMR_ClientDelete(timerObj);
_SYS_TMR_ClientSrvUnlock();
}
}
// process timer alarm
// occurs within TMR thread
static void _SYS_TMR_ProcessTmrAlarm(void)
{
int ix;
SYS_TMR_CLIENT_OBJECT* pClient;
// get number of elapsed counts
uint32_t nTicks = sSysTmrObject.sysTickCount - sSysTmrObject.sysTickPrevCount;
sSysTmrObject.sysTickPrevCount = sSysTmrObject.sysTickCount;
uint32_t nUnitsElapsed = (nTicks * sSysTmrObject.sysTickUnitCount);
pClient = sClientObjects + 0;
for ( ix = 0; ix < sizeof(sClientObjects)/sizeof(*sClientObjects); ix++, pClient++ )
{
if ( pClient->currState == SYS_TMR_CLIENT_ACTIVE)
{
if( (pClient->tuCount -= nUnitsElapsed) <= 0 )
{ // timeout
/* invoke callback routine */
if ( pClient->callback != 0 )
{
pClient->callback ( pClient->context, sSysTmrObject.sysTickCount);
}
if ( pClient->flags.periodic == true )
{ // reload
pClient->tuCount += pClient->tuRate;
}
else if (pClient->callback != 0 && pClient->flags.auto_del == true)
{ // client notified; delete this object
_SYS_TMR_ClientDelete(pClient);
}
else
{ // non delete non periodic object; store the timeout condition
pClient->currState = SYS_TMR_CLIENT_INACTIVE;
pClient->tuCount = 0;
}
}
}
}
}
bool SYS_TMR_ObjectReload ( SYS_TMR_HANDLE handle, uint32_t periodMs, uintptr_t context, SYS_TMR_CALLBACK callback)
{
SYS_TMR_CLIENT_OBJECT * timerObj = _SYS_TMR_ClientCheckSrvLock(handle);
if(timerObj)
{
timerObj->isrEnable = 0;
bool res = _SYS_TMR_ClientParamSet(timerObj, periodMs, context, callback);
if(timerObj->isrState == SYS_TMR_CLIENT_ISR_MARK_DEL)
{ // client is too late
_SYS_TMR_ClientDelete(timerObj);
res = false;
}
timerObj->isrState = SYS_TMR_CLIENT_ISR_ACTIVE;
timerObj->isrEnable = 1;
_SYS_TMR_ClientSrvUnlock();
return res;
}
return false;
}
void SYS_TMR_Deinitialize ( SYS_MODULE_OBJ object )
{
int ix;
if(!_SYS_TMR_ObjectCheck(object))
{
return;
}
// we're up and running
// make sure no new clients are accepted
_UserGblLock();
// now kill all clients
if ( sSysTmrObject.driverHandle != 0 && sSysTmrObject.driverHandle != DRV_HANDLE_INVALID )
{
DRV_TMR_Close(sSysTmrObject.driverHandle);
sSysTmrObject.driverHandle = 0;
}
// release all clients
SYS_TMR_CLIENT_OBJECT* pClient = sClientObjects + 0;
for ( ix = 0; ix < sizeof(sClientObjects)/sizeof(*sClientObjects); ix++, pClient++ )
{
pClient->isrEnable = 0;
if ( pClient->currState != SYS_TMR_CLIENT_FREE)
{
_SYS_TMR_ClientDelete(pClient);
}
}
_UserGblLockDelete();
sSysTmrObject.status = SYS_STATUS_UNINITIALIZED;
}