/**@brief Function for handling the GPIOTE interrupt.
*/
void GPIOTE_IRQHandler(void)
{
uint8_t i;
uint32_t pins_changed;
uint32_t pins_state = NRF_GPIO->IN;
// Clear event.
NRF_GPIOTE->EVENTS_PORT = 0;
// Check all users.
for (i = 0; i < m_user_count; i++)
{
gpiote_user_t * p_user = &mp_users[i];
// Check if user is enabled.
if (((1 << i) & m_enabled_users_mask) != 0)
{
uint32_t transition_pins;
uint32_t event_low_to_high;
uint32_t event_high_to_low;
// Find set of pins on which there has been a transition.
transition_pins = (pins_state ^ ~p_user->sense_high_pins) & p_user->pins_mask;
// Toggle SENSE level for all pins that have changed state.
sense_level_toggle(p_user, transition_pins);
// Second read after setting sense.
// Check if any pins have changed while serving this interrupt.
pins_changed = NRF_GPIO->IN ^ pins_state;
if (pins_changed)
{
// Transition pins detected in late stage.
uint32_t late_transition_pins;
pins_state |= pins_changed;
// Find set of pins on which there has been a transition.
late_transition_pins = (pins_state ^ ~p_user->sense_high_pins) & p_user->pins_mask;
// Toggle SENSE level for all pins that have changed state in last phase.
sense_level_toggle(p_user, late_transition_pins);
// Update pins that has changed state since the interrupt occurred.
transition_pins |= late_transition_pins;
}
// Call user event handler if an event has occurred.
event_high_to_low = (~pins_state & p_user->pins_high_to_low_mask) & transition_pins;
event_low_to_high = (pins_state & p_user->pins_low_to_high_mask) & transition_pins;
if ((event_low_to_high | event_high_to_low) != 0)
{
p_user->event_handler(event_low_to_high, event_high_to_low);
}
}
}
}
uint32_t app_gpiote_input_event_handler_register(const uint8_t channel,
const uint32_t pin,
const uint32_t polarity,
app_gpiote_input_event_handler_t event_handler)
{
(void)sense_level_toggle(NULL, pin);
return NRF_ERROR_NOT_SUPPORTED;
}
/**@brief Function for handling the GPIOTE interrupt.
*/
void GPIOTE_IRQHandler(void)
{
xprintf("enter the f*****g INT\n");
uint8_t i;
uint32_t pins_state = NRF_GPIO->IN;
//INT_state = 1;
// Clear event.
NRF_GPIOTE->EVENTS_PORT = 0;
// gpiote_user_t * p_user = &mp_users[0];
//p_user->event_handler(12, 0);
// Check all users.
for (i = 0; i < m_user_count; i++)
{
gpiote_user_t * p_user = &mp_users[i];
// Check if user is enabled.
if (((1 << i) & m_enabled_users_mask) != 0)
{
uint32_t transition_pins;
uint32_t event_low_to_high;
uint32_t event_high_to_low;
// Find set of pins on which there has been a transition.
transition_pins = (pins_state ^ ~p_user->sense_high_pins) & p_user->pins_mask;
// Toggle SENSE level for all pins that have changed state.
sense_level_toggle(p_user, transition_pins);
// Call user event handler if an event has occurred.
event_high_to_low = (~pins_state & p_user->pins_high_to_low_mask) & transition_pins;
event_low_to_high = (pins_state & p_user->pins_low_to_high_mask) & transition_pins;
if ((event_low_to_high | event_high_to_low) != 0)
{
p_user->event_handler(event_low_to_high, event_high_to_low);
}
}
}
}
/**@brief Function for handling the GPIOTE interrupt.
*/
void GPIOTE_IRQHandler(void)
{
uint8_t i;
uint32_t pins_changed = 1;
uint32_t pins_sense_enabled = 0;
uint32_t pins_sense_disabled = 0;
uint32_t pins_state = NRF_GPIO->IN;
// Clear event.
NRF_GPIOTE->EVENTS_PORT = 0;
while (pins_changed)
{
// Check all users.
for (i = 0; i < m_user_count; i++)
{
gpiote_user_t * p_user = &mp_users[i];
// Check if user is enabled.
if (((1 << i) & m_enabled_users_mask) != 0)
{
uint32_t transition_pins;
uint32_t event_low_to_high = 0;
uint32_t event_high_to_low = 0;
pins_sense_enabled |= (p_user->pins_mask & ~pins_sense_disabled);
// Find set of pins on which there has been a transition.
transition_pins = (pins_state ^ ~p_user->sense_high_pins) & (p_user->pins_mask & ~pins_sense_disabled);
sense_level_disable(transition_pins);
pins_sense_disabled |= transition_pins;
pins_sense_enabled &= ~pins_sense_disabled;
// Call user event handler if an event has occurred.
event_high_to_low |= (~pins_state & p_user->pins_high_to_low_mask) & transition_pins;
event_low_to_high |= (pins_state & p_user->pins_low_to_high_mask) & transition_pins;
if ((event_low_to_high | event_high_to_low) != 0)
{
p_user->event_handler(event_low_to_high, event_high_to_low);
}
}
}
// Second read after setting sense.
// Check if any pins with sense enabled have changed while serving this interrupt.
pins_changed = (NRF_GPIO->IN ^ pins_state) & pins_sense_enabled;
pins_state ^= pins_changed;
}
// Now re-enabling sense on all pins that have sense disabled.
// Note: a new interrupt might fire immediatly.
for (i = 0; i < m_user_count; i++)
{
gpiote_user_t * p_user = &mp_users[i];
// Check if user is enabled.
if (((1 << i) & m_enabled_users_mask) != 0)
{
if (pins_sense_disabled & p_user->pins_mask)
{
sense_level_toggle(p_user, pins_sense_disabled & p_user->pins_mask);
}
}
}
}