355 lines
7.5 KiB
C++
355 lines
7.5 KiB
C++
/*
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* This file is part of the "bluetoothheater" distribution
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* (https://gitlab.com/mrjones.id.au/bluetoothheater)
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*
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* Copyright (C) 2018 Ray Jones <ray@mrjones.id.au>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "GPIO.h"
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#include "../Protocol/helpers.h"
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const int BREATHINTERVAL = 45;
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const int FADEAMOUNT = 3;
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const int FLASHPERIOD = 2000;
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const int ONFLASHINTERVAL = 50;
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CGPIOin::CGPIOin()
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{
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_Mode = GPIOinNone;
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_pins[0] = 0;
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_pins[1] = 0;
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_prevPins = 0;
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_lastDebounceTime = 0;
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_lastKey = 0;
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_debounceDelay = 50;
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}
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void
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CGPIOin::begin(int pin1, int pin2, GPIOinModes mode)
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{
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_pins[0] = pin1;
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_pins[1] = pin2;
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pinMode(pin1, INPUT_PULLUP); // GPIO input pin #1
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pinMode(pin2, INPUT_PULLUP); // GPIO input pin #2
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setMode(mode);
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}
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uint8_t
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CGPIOin::getState(int channel)
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{
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int mask = 0x01 << (channel & 0x01);
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return (_debouncedPins & mask) != 0;
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}
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void
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CGPIOin::manage()
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{
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switch (_Mode) {
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case GPIOinNone:
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break;
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case GPIOinOn1Off2:
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_doOn1Off2();
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break;
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case GPIOinOnHold1:
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_doOnHold1();
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break;
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case GPIOinOn1Off1:
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_doOn1Off1();
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break;
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}
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}
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void
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CGPIOin::_doOn1Off2()
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{
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uint8_t newKey = _scanInputs();
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// determine edge events
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uint8_t keyChange = newKey ^ _lastKey;
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_lastKey = newKey;
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if(keyChange) {
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if(newKey & 0x01) {
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requestOn();
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}
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if(newKey & 0x02) {
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requestOff();
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}
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}
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}
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// mode where heater runs if input 1 is shorted
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// stops when open
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void
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CGPIOin::_doOnHold1()
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{
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uint8_t newKey = _scanInputs();
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// determine edge events
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uint8_t keyChange = newKey ^ _lastKey;
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_lastKey = newKey;
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if(keyChange) {
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if(newKey & 0x01) {
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requestOn();
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}
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else {
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requestOff();
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}
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}
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}
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// mode where heater runs if input 1 is shorted
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// stops when open
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void
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CGPIOin::_doOn1Off1()
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{
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uint8_t newKey = _scanInputs();
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// determine edge events
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uint8_t keyChange = newKey ^ _lastKey;
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_lastKey = newKey;
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if(keyChange) {
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if(newKey & 0x01) {
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if(getHeaterInfo().getRunStateEx())
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requestOff();
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else
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requestOn();
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}
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}
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}
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uint8_t
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CGPIOin::_scanInputs()
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{
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uint8_t newPins = 0;
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if(_pins[0] && digitalRead(_pins[0]) == HIGH) newPins |= 0x01;
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if(_pins[1] && digitalRead(_pins[1]) == HIGH) newPins |= 0x02;
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if(newPins != _prevPins) {
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_lastDebounceTime = millis();
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_prevPins = newPins;
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}
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long elapsed = millis() - _lastDebounceTime;
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if (elapsed > _debounceDelay) {
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// whatever the reading is at, it's been there for longer than the debounce
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// delay, so take it as the actual current state:
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_debouncedPins = newPins;
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}
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return _debouncedPins;
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}
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CGPIOout::CGPIOout()
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{
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_Mode = GPIOoutNone;
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_pins[0] = 0;
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_pins[1] = 0;
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_breatheDelay = 0;
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_statusState = 0;
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_statusDelay = 0;
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_userState = 0;
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_prevState = -1;
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}
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void
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CGPIOout::begin(int pin1, int pin2, GPIOoutModes mode)
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{
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_pins[0] = pin1;
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_pins[1] = pin2;
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if(pin1) {
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pinMode(pin1, OUTPUT); // GPIO output pin #1
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digitalWrite(pin1, LOW);
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ledcSetup(0, 500, 8); // create PWM channel for GPIO1: 500Hz, 8 bits
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}
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if(pin2) {
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pinMode(pin2, OUTPUT); // GPIO output pin #2
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digitalWrite(pin2, LOW);
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ledcSetup(1, 500, 8); // create PWM channel for GPIO2: 500Hz, 8 bits
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}
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setMode(mode);
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}
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void
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CGPIOout::setMode(GPIOoutModes mode)
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{
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_Mode = mode;
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_prevState = -1;
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ledcDetachPin(_pins[0]); // ensure PWM detached from IO line
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ledcDetachPin(_pins[1]); // ensure PWM detached from IO line
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};
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void
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CGPIOout::manage()
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{
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switch (_Mode) {
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case GPIOoutNone: break;
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case GPIOoutStatus: _doStatus(); break;
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case GPIOoutUser: _doUser(); break;
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}
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}
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void
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CGPIOout::_doStatus()
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{
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if(_pins[0] == 0)
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return;
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// DebugPort.println("GPIOout::_doStatus()");
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int runstate = getHeaterInfo().getRunStateEx();
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int statusMode = 0;
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switch(runstate) {
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case 1:
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case 2:
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case 3:
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case 4:
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case 9:
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// starting modes
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statusMode = 1;
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break;
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case 5:
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// run mode
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statusMode = 2;
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break;
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case 6:
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case 7:
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case 8:
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case 11:
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case 12:
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// cooldown modes
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statusMode = 3;
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break;
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case 10:
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// suspend mode
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statusMode = 4;
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break;
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}
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// change of mode typically requires changing from simple digital out
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// to PWM or vice versa
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if(_prevState != statusMode) {
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_prevState = statusMode;
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_statusState = 0;
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_statusDelay = millis() + BREATHINTERVAL;
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switch(statusMode) {
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case 0:
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ledcDetachPin(_pins[0]); // detach PWM from IO line
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digitalWrite(_pins[0], LOW);
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break;
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case 1:
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ledcAttachPin(_pins[0], 0); // attach PWM to GPIO line
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ledcWrite(0, _statusState);
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_breatheDelay = millis() + BREATHINTERVAL;
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break;
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case 2:
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ledcDetachPin(_pins[0]); // detach PWM from IO line
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digitalWrite(_pins[0], HIGH);
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break;
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case 3:
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ledcAttachPin(_pins[0], 0); // attach PWM to GPIO line
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_statusState = 255;
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ledcWrite(0, _statusState);
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_breatheDelay = millis() + BREATHINTERVAL;
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break;
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case 4:
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ledcDetachPin(_pins[0]); // detach PWM from IO line
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_breatheDelay += (FLASHPERIOD - ONFLASHINTERVAL); // extended off
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digitalWrite(_pins[0], LOW);
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break;
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}
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}
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switch(statusMode) {
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case 1: _doStartMode(); break;
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case 3: _doStopMode(); break;
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case 4: _doSuspendMode(); break;
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}
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}
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void
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CGPIOout::_doUser()
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{
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// DebugPort.println("GPIOout::_doUser()");
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if(_pins[0]) {
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digitalWrite(_pins[0], (_userState & 0x01) ? HIGH : LOW);
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}
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if(_pins[1]) {
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digitalWrite(_pins[1], (_userState & 0x02) ? HIGH : LOW);
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}
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}
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void
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CGPIOout::_doStartMode() // breath up PWM
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{
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long tDelta = millis() - _breatheDelay;
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if(tDelta >= 0) {
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_breatheDelay += BREATHINTERVAL;
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int expo = ((_statusState >> 5) + 1);
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_statusState += expo;
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_statusState &= 0xff;
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ledcWrite(0, _statusState);
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}
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}
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void
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CGPIOout::_doStopMode() // breath down PWM
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{
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long tDelta = millis() - _breatheDelay;
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if(tDelta >= 0) {
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_breatheDelay += BREATHINTERVAL;
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int expo = ((_statusState >> 5) + 1);
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_statusState -= expo;
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_statusState &= 0xff;
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ledcWrite(0, _statusState);
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}
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}
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void
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CGPIOout::_doSuspendMode() // brief flash
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{
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long tDelta = millis() - _breatheDelay;
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if(tDelta >= 0) {
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_statusState++;
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if(_statusState & 0x01) {
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_breatheDelay += ONFLASHINTERVAL; // brief flash on
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digitalWrite(_pins[0], HIGH);
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}
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else {
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_breatheDelay += (FLASHPERIOD - ONFLASHINTERVAL); // extended off
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digitalWrite(_pins[0], LOW);
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}
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}
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}
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void
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CGPIOout::setState(int channel, bool state)
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{
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int mask = 0x01 << (channel & 0x01);
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if(state)
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_userState |= mask;
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else
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_userState &= ~mask;
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}
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bool
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CGPIOout::getState(int channel)
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{
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int mask = 0x01 << (channel & 0x01);
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return (_userState & mask) != 0;
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} |