int pwm_input_main(int argc, char *argv[])
{
configgpio();
attach_isr();
set_timer(0);//timer14
set_timer(1);//timer12
set_timer(2);//timer3
set_timer(3);//timer8
enable_irq();
}
// Class instance to configure the MCP23017 and prepare arduino interrupts
void MCP23017::begin()
{
configure(); // Configure MCP23017
attach_isr(); // Configure Interrupt on Arduino
}
void MCP23017::handleClicks() {
uint32_t currentMillis = millis(); // Save current millis()
for (uint8_t x = 0; x < last_button; x++) { // loop through buttons
// Single/Double click handling
if (currentMillis - buttonReleaseTime[x] >= 225) {
if (buttonReleaseCount[x] >= 2) {
buttonNeedHandling[x] = true;
buttonClickType[x] = MCP_DOUBLE_CLICK;
buttonReleaseCount[x] = 0;
#ifdef _MCP_SERIAL_DEBUG
Serial.print(F("Double click on button "));
Serial.println(x);
Serial.println();
#endif
}
else if (buttonReleaseCount[x] == 1) {
buttonNeedHandling[x] = true;
buttonClickType[x] = MCP_CLICK;
buttonReleaseCount[x] = 0;
#ifdef _MCP_SERIAL_DEBUG
Serial.print(F("Single click on button "));
Serial.println(x);
Serial.println();
}
if (buttonNeedHandling[x] == true) {
#ifdef _MCP_SERIAL_DEBUG3
Serial.print(F("Button handling (handle) Required for Button ID: "));
Serial.println(x);
#endif
#endif
}
} // end single/double click handling
// Button hold handling
if (currentMillis - buttonPressTime[x] > MCP_LONG_CLICK_TIMEOUT && buttonState[x] && buttonClickType[x] != MCP_HELD_DOWN) {
buttonNeedHandling[x] = true;
buttonClickType[x] = MCP_HELD_DOWN;
#ifdef _MCP_SERIAL_DEBUG
Serial.print(F("Button "));
Serial.print(x);
Serial.println(F(" is held down"));
Serial.println();
#endif
}
} // end button loop
if (ISR_flag) { // If MCP23017 Interrupt flag is set....
uint8_t _buttonID = getLastIntPin(); // Get which pin caused the interrupt
uint32_t isr_time_diff = (uint32_t)(currentMillis - prevISRMillis); // Time difference between the time the ISR fired and now
if (isr_time_diff >= MCP_ISR_DEBOUNCE) { // If we have a difference of MCP_ISR_DEBOUCE...
uint8_t _buttonState = readReg(MCP_INTCAPA); // Read port state at the time of interrupt (INTCAP register)
ISR_flag = false; // Reset interrupt flag
if (_buttonID != MCP_ERR) { // If the function didn't return ERR...
if (_buttonState != MCP_ERR) {
buttonState[_buttonID] = bitRead(_buttonState, _buttonID); // Set the button state accordingly
if (buttonState[_buttonID]) { // Pressed
buttonNeedHandling[_buttonID] = true;
buttonClickType[_buttonID] = MCP_PRESS;
#ifdef _MCP_SERIAL_DEBUG
Serial.print(F("Button press on button: "));
Serial.println(_buttonID);
Serial.println();
#endif
#ifdef _MCP_SERIAL_DEBUG2
Serial.print(F("Press Time for button: "));
Serial.print(_buttonID);
Serial.print(F(" : "));
Serial.println(currentMillis - buttonPressTime[_buttonID]);
Serial.println();
#endif
buttonPressTime[_buttonID] = currentMillis; // Save the time at which the button was pressed (approximately...)
}
else { // Released
#ifdef _MCP_SERIAL_DEBUG2
Serial.print(F("Release count: "));
Serial.print(buttonReleaseCount[_buttonID]);
Serial.print(F(" Time: "));
Serial.println(currentMillis - buttonReleaseTime[_buttonID]);
Serial.println();
#endif
if (isr_time_diff < MCP_LONG_CLICK_LENGTH) {
buttonReleaseCount[_buttonID]++;
}
else if (isr_time_diff > MCP_LONG_CLICK_LENGTH && (currentMillis - buttonPressTime[_buttonID]) <= MCP_LONG_CLICK_TIMEOUT) {
buttonNeedHandling[_buttonID] = true;
buttonClickType[_buttonID] = MCP_LONG_CLICK;
#ifdef _MCP_SERIAL_DEBUG
Serial.print(F("Long click on button "));
Serial.println(_buttonID);
Serial.println();
#endif
}
if (currentMillis - buttonPressTime[_buttonID] > MCP_LONG_CLICK_TIMEOUT) {
if (buttonClickType[_buttonID] == MCP_HELD_DOWN) {
buttonNeedHandling[_buttonID] = true;
buttonClickType[_buttonID] = MCP_HELD_RELEASE;
#ifdef _MCP_SERIAL_DEBUG
Serial.print(F("Button "));
Serial.print(_buttonID);
Serial.println(F(" was held down, now is released"));
Serial.println();
#endif
}
}
buttonPressTime[_buttonID] = 0;
buttonReleaseTime[_buttonID] = currentMillis;
}
}
} // end if _buttonID
prevISRMillis = currentMillis; // Save when we last checked for interrupt (approximately...)
attach_isr(); // Re-enable interrupts on Arduino
} // end debounce
}
}
