mirror of
https://github.com/DCC-EX/CommandStation-EX.git
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109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
/*
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* © 2020, Chris Harlow. All rights reserved.
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*
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* This file is part of Asbelos DCC API
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*
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* This 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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* It 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 CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <Arduino.h>
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#include <TimerOne.h> // use IDE menu Tools..Manage Libraries to locate and install TimerOne
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#include "avdweb_AnalogReadFast.h"
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#include "Hardware.h"
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#include "Config.h"
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#include "DIAG.h"
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#if defined(ARDUINO_ARCH_AVR)
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#include <DIO2.h> // use IDE menu Tools..Manage Libraries to locate and install DIO2
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#define WritePin digitalWrite2
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#define ReadPin digitalRead2
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#else
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#define WritePin digitalWrite
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#define ReadPin digitalRead
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#endif
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void Hardware::init() {
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pinMode(MAIN_POWER_PIN, OUTPUT);
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pinMode(MAIN_BRAKE_PIN, OUTPUT);
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pinMode(MAIN_SIGNAL_PIN, OUTPUT);
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if (MAIN_SIGNAL_PIN_ALT != UNUSED_PIN) pinMode(MAIN_SIGNAL_PIN_ALT, OUTPUT);
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pinMode(MAIN_SENSE_PIN, INPUT);
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if (MAIN_FAULT_PIN != UNUSED_PIN) pinMode(MAIN_FAULT_PIN, INPUT);
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pinMode(PROG_POWER_PIN, OUTPUT);
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pinMode(PROG_BRAKE_PIN, OUTPUT);
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pinMode(PROG_SIGNAL_PIN, OUTPUT);
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if (PROG_SIGNAL_PIN_ALT != UNUSED_PIN) pinMode(PROG_SIGNAL_PIN_ALT, OUTPUT);
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pinMode(PROG_SENSE_PIN, INPUT);
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if (PROG_FAULT_PIN != UNUSED_PIN) pinMode(PROG_FAULT_PIN, INPUT);
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}
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void Hardware::setPower(bool isMainTrack, bool on) {
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WritePin(isMainTrack ? MAIN_POWER_PIN : PROG_POWER_PIN, on ? HIGH : LOW);
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}
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void Hardware::setBrake(bool isMainTrack, bool on) {
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WritePin(isMainTrack ? MAIN_BRAKE_PIN : PROG_BRAKE_PIN, on ? LOW:HIGH);
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}
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void Hardware::setSignal(bool isMainTrack, bool high) {
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byte pin = isMainTrack ? MAIN_SIGNAL_PIN : PROG_SIGNAL_PIN;
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byte pin2 = isMainTrack ? MAIN_SIGNAL_PIN_ALT : PROG_SIGNAL_PIN_ALT;
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WritePin(pin, high ? HIGH : LOW);
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if (pin2 != UNUSED_PIN) WritePin(pin2, high ? LOW : HIGH);
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}
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int Hardware::getCurrentRaw(bool isMainTrack) {
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// tooo much crap for a interrupt routine. Will see how that goes.
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byte faultpin = isMainTrack ? MAIN_FAULT_PIN : PROG_FAULT_PIN;
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byte powerpin = isMainTrack ? MAIN_POWER_PIN : PROG_POWER_PIN;
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if (faultpin != UNUSED_PIN && ReadPin(faultpin) == LOW && ReadPin(powerpin) == HIGH)
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return (int) (32000 / (isMainTrack ? MAIN_SENSE_FACTOR : PROG_SENSE_FACTOR)); // 32A should be enough
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// IMPORTANT: This function can be called in Interrupt() time within the 56uS timer
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// The default analogRead takes ~100uS which is catastrphic
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// so analogReadFast is used here. (-2uS)
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return analogReadFast(isMainTrack ? MAIN_SENSE_PIN : PROG_SENSE_PIN);
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}
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unsigned int Hardware::getCurrentMilliamps(bool isMainTrack, int raw) {
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return (unsigned int)(raw * (isMainTrack ? MAIN_SENSE_FACTOR : PROG_SENSE_FACTOR));
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}
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void Hardware::setCallback(int duration, void (*isr)()) {
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Timer1.initialize(duration);
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// We don't want the timer to set pins because these often clash with motor shields etc.
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Timer1.disablePwm(TIMER1_A_PIN);
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Timer1.disablePwm(TIMER1_B_PIN);
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Timer1.attachInterrupt(isr);
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}
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// shortcut to cpu dependent high speed write
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void Hardware::pinWrite(int pin, bool high) {
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WritePin(pin,high);
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}
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// Railcom support functions, not yet implemented
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//void Hardware::setSingleCallback(int duration, void (*isr)()) {
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// Timer2.initialize(duration);
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// Timer2.disablePwm(TIMER1_A_PIN);
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// Timer2.disablePwm(TIMER1_B_PIN);
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// Timer2.attachInterrupt(isr);
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//}
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//void Hardware::resetSingleCallback(int duration) {
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// if (duration==0) Timer2.stop();
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// else Timer2.initialize(duration);
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//}
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