extern void HandlePIOChangedEvent(uint32 pio_changed)
{
if(pio_changed & PIO_BIT_MASK(BUTTON_PIO))
{
/* PIO changed */
uint32 pios = PioGets();
if(!(pios & PIO_BIT_MASK(BUTTON_PIO)))
{
/* This is for the case when pio changed event has come for button
* press.
*/
/* Delete any button press timer if already running */
TimerDelete(g_app_hw_data.button_press_tid);
g_app_hw_data.button_press_tid = TIMER_INVALID;
/* Create a button press timer */
g_app_hw_data.button_press_tid =
TimerCreate(LONG_BUTTON_PRESS_TIMER,
TRUE,
handleShortOrLongButtonPressTimerExpiry);
/* Initialize the short (or) long button pressed flag with FALSE.*/
g_app_hw_data.long_or_short_button_pressed = FALSE;
}
else
{
/* This is for the case when pio changed event comes for
* the button release
*/
if(g_app_hw_data.button_press_tid != TIMER_INVALID)
{
/* Button press timer is running.This means that either
* 1.timer EXTRA_LONG_BUTTON_PRESS_TIMER has not expired yet
* OR
* 2.Timer EXTRA_LONG_BUTTON_PRESS_TIMER has expired but a 2nd
* timer of length (EXTRA_LONG_BUTTON_PRESS_TIMER -
* LONG_BUTTON_PRESS_TIMER) which we start on 1st timer
* expiry, is still running.
*/
/* case when timer LONG_BUTTON_PRESS_TIMER is still running */
if(g_app_hw_data.long_or_short_button_pressed == FALSE)
{
HandleShortButtonPress();
}
/* Delete the already running button press timer */
TimerDelete(g_app_hw_data.button_press_tid);
g_app_hw_data.button_press_tid = TIMER_INVALID;
g_app_hw_data.long_or_short_button_pressed = FALSE;
}
}
}
}
extern void HandlePIOChangedEvent(pio_changed_data *pio_data)
{
if(pio_data->pio_cause & BUTTON_PIO_MASK)
{
/* PIO changed */
uint32 pios = PioGets();
if(!(pios & BUTTON_PIO_MASK))
{
/* This event comes when a button is pressed */
/* Start a timer for EXTRA_LONG_BUTTON_PRESS_TIMER seconds.
* If timer expires before we receive a button release event then
* it was a long press and if we receive a button release PIO
* changed event, it means it was a short press.
*/
TimerDelete(g_weight_hw_data.button_press_tid);
g_weight_hw_data.button_press_tid = TIMER_INVALID;
g_weight_hw_data.button_press_tid = TimerCreate(
EXTRA_LONG_BUTTON_PRESS_TIMER,
TRUE,
HandleExtraLongButtonPress);
}
else
{
if(g_weight_hw_data.button_press_tid != TIMER_INVALID)
{
/* Timer was already running. This means it was a short button
* press.
*/
TimerDelete(g_weight_hw_data.button_press_tid);
g_weight_hw_data.button_press_tid = TIMER_INVALID;
AppHandleShortButtonPress();
}
}
}
}
/*----------------------------------------------------------------------------*
* NAME
* HandlePIOChangedEvent
*
* DESCRIPTION
* This function handles the PIO Changed event.
*
* PARAMETERS
* pio_data [in] State of the PIOs when the event occurred
*
* RETURNS
* Nothing
*----------------------------------------------------------------------------*/
extern void HandlePIOChangedEvent(pio_changed_data *pio_data)
{
if(pio_data->pio_cause & BUTTON_PIO_MASK)
{
/* PIO changed */
uint32 pios = PioGets();
if(!(pios & BUTTON_PIO_MASK))
{
/* This event is triggered when a button is pressed. */
/* Start a timer for EXTRA_LONG_BUTTON_PRESS_TIMER seconds. If the
* timer expires before the button is released an extra long button
* press is detected. If the button is released before the timer
* expires a short button press is detected.
*/
TimerDelete(g_app_hw_data.button_press_tid);
g_app_hw_data.button_press_tid =
TimerCreate(EXTRA_LONG_BUTTON_PRESS_TIMER,
TRUE, handleExtraLongButtonPress);
}
else
{
/* This event comes when a button is released. */
if(g_app_hw_data.button_press_tid != TIMER_INVALID)
{
/* Timer was already running. This means it was a short button
* press.
*/
TimerDelete(g_app_hw_data.button_press_tid);
g_app_hw_data.button_press_tid = TIMER_INVALID;
/* Indicate short button press using short beep */
SoundBuzzer(buzzer_beep_short);
HandleShortButtonPress();
}
}
}
}
