/****************************************************************************
DESCRIPTION
function to detect edge changes of buttons / multiple buttons.
*/
static void ButtonsEdgeDetect ( const uint32 pState , ButtonsTaskData * pButtonsTask )
{
uint32 lNewState = 0x0000 ;
uint32 lButton = 0x0000 ;
/*what has changed */
lNewState = (uint32) ( pState & (pButtonsTask->gPerformEdgeCheck) ) ;
lButton = ButtonsWhichButtonChanged( pButtonsTask->gBOldEdgeState , lNewState ) ;
B_DEBUG(("But Edge Det: [%lx][%lx][%lx]\n", pButtonsTask->gBOldEdgeState , lNewState , pButtonsTask->gButtonLevelMask )) ;
B_DEBUG(("But Edge Det: [%lx][%lx][%lx]\n", lNewState , lButton , (lNewState & lButton) )) ;
/*if a button has changed*/
if ( lButton )
{
/*determine which edge has been received and process accordingly*/
if ( lNewState & lButton )
{
ButtonsButtonDetected ( pButtonsTask , lButton , B_LOW_TO_HIGH ) ;
}
else
{
ButtonsButtonDetected ( pButtonsTask , lButton , B_HIGH_TO_LOW ) ;
}
}
/*remember the last state*/
pButtonsTask->gBOldEdgeState = lNewState;
}
/****************************************************************************
DESCRIPTION
function to detect edge changes of buttons / multiple buttons.
*/
static void ButtonsEdgeDetect ( const uint32 pInput , ButtonsTaskData * pButtonsTask )
{
uint32 lNewInput = (uint32) (pInput & (pButtonsTask->gPerformInputEdgeCheck) ) ;
uint32 lOldInput = (uint32) (pButtonsTask->gBOldInputState & pButtonsTask->gPerformInputEdgeCheck);
uint32 lInput = ButtonsWhichButtonChanged( lOldInput , lNewInput ) ;
B_DEBUG(("But Edge Det: Old Edge[%lx] New Edge[%lx] Button[%lx] Low2High[%lx}\n", lOldInput , lNewInput ,lInput ,(lNewInput & lInput) )) ;
/*if a button has changed*/
if ( lInput )
{
/*determine which edge has been received and process accordingly*/
if ( lNewInput & lInput )
{
ButtonsButtonDetected ( pButtonsTask , lInput , B_LOW_TO_HIGH ) ;
/* check whether device needs to be made connectable as a result of a button press
on a multipoint device */
if(theSink.features.GoConnectableButtonPress)
sinkEnableMultipointConnectable();
}
else
{
ButtonsButtonDetected ( pButtonsTask , lInput , B_HIGH_TO_LOW ) ;
}
}
}
/****************************************************************************
DESCRIPTION
helper method - returns true if a button was pressed
*/
static bool ButtonsWasButtonPressed ( uint32 pOldState , uint32 pNewState)
{
bool lWasButtonPressed = FALSE ;
uint32 lButton = ButtonsWhichButtonChanged ( pOldState , pNewState ) ;
if ( ( lButton & pNewState ) != 0 )
{
lWasButtonPressed = TRUE ;
}
return lWasButtonPressed ;
}
/****************************************************************************
DESCRIPTION
helper method - returns true if a button was pressed
*/
static bool ButtonsWasButtonPressed ( uint32 pOldState , uint32 pNewState)
{
bool lWasButtonPressed = FALSE ;
uint32 lButton = ButtonsWhichButtonChanged ( pOldState , pNewState ) ;
if ( ( lButton & pNewState ) != 0 )
{
lWasButtonPressed = TRUE ;
}
B_DEBUG(("B:But WasPressed OldSt[%lx] NewSt[%lx] Input[%lx] Pressed[%x]\n", pOldState, pNewState, lButton,lWasButtonPressed)) ;
return lWasButtonPressed ;
}