Running all devices

all-functions/all-functions.ino

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+#include "Wire.h"
+#include <PCA9554.h>  // Load the PCA9554 Library
+
+#define TCAADDR 0x70
+
+// byte saa1064 = 0x3B;
+PCA9554 ioCon1(0x24);  // Create an object at this address
+
+
+// LEDs have two addresses, one for RED another for GREEN
+bool fanGreenLED;
+bool fanRedLED;
+bool tempGreenLED;
+bool tempRedLED;
+bool powerGreenLED;
+bool powerRedLED;
+bool modeSelect;
+
+bool nic1State = 0;
+bool nic2State = 0;
+bool lockButtonState = 1;
+bool modeButtonState = 1;
+
+int powerState = 0;
+// first bit is current value, second bit is alarm state
+int fanState[2] = {0, 0};
+int tempState[2] = {0, 0};
+
+byte centerColumnsMemoryMap[2][4] = {
+  {0b00000000, 0b00000000, 0b00000000, 0b00000000}, // left column
+  {0b00000000, 0b00000000, 0b00000000, 0b00000000}  // right column
+};
+
+byte ioHash = 0;
+
+// --- ADDRESS MAPs ---
+int IOMapLength = 8;
+bool* mapIO[8] = {&powerGreenLED, &powerRedLED, &fanGreenLED, &fanRedLED, &tempGreenLED, &tempRedLED, &lockButtonState, &modeSelect};
+// bool mapNics[3] = {nic1State, nic2State};
+
+// --- PIN DEFINITIONS ---
+int POWER_FAIL_PIN = 8;
+int FAN_PIN = 9;
+int POWER_PIN = 12;
+int NIC_1_PIN = 10;
+int NIC_2_PIN = 11;
+int BUTTON_LOCK_PIN = A3;
+int BUTTON_MODE_PIN = A2;
+
+unsigned long lastDebounceTimeLock = 0;
+unsigned long lastDebounceTimeMode = 0;
+const int DEBOUNCE_DELAY = 30;
+
+unsigned long lastUpdateIO = 0;
+const int IO_UPDATE_INTERVAL = 200;
+
+void setup() {
+  Serial.begin(9600);
+  // Serial.println(mapIO[0]);
+  pinMode(POWER_FAIL_PIN, INPUT);
+  pinMode(FAN_PIN, INPUT);
+  pinMode(NIC_1_PIN, INPUT);
+  pinMode(NIC_2_PIN, INPUT);
+  pinMode(POWER_PIN, INPUT);
+
+  pinMode(BUTTON_LOCK_PIN, INPUT_PULLUP);
+  pinMode(BUTTON_MODE_PIN, INPUT_PULLUP);
+
+  Serial.println("setup all pinouts");
+  Wire.begin(); // start up I2C bus
+  Serial.println("i2c setup");
+
+  ioCon1.portMode(ALLOUTPUT);
+  Serial.println("iocon1 setup");
+
+  delay(500);
+  
+  selectRightHalf();
+  lightUpIO();
+  selectLeftHalf();
+  lightUpIO();
+}
+
+void lightUpIO() {
+  Serial.println("ligthing up top io");
+  for (int i = 0; i < IOMapLength; ++i) {
+    ioCon1.digitalWrite(i, mapIO[i]);
+  }
+  Serial.println("finished ligthing up top io");
+}
+
+unsigned long currentTime = millis();
+
+void updateTime() {
+  currentTime = millis();
+}
+
+int fanBlinkCounter = 0;
+
+unsigned long fanToggledAt;
+void updateFanState(int state) {
+  // fan changed and did so within 1 second
+  bool stateChanged = state != fanState[0];
+  fanState[0] = state;
+
+  // detect that blinking is happening
+  if (stateChanged && (currentTime - fanToggledAt > 250)) {
+    fanState[1] = 1;
+    fanToggledAt = currentTime;
+  }
+  
+  // detect that blinking stopped
+  // if alarm && it changes && it has been more then 2 times the frex since last toggle
+  if (fanState[1] == 1 && (currentTime > fanToggledAt + 1000)) {
+    // nothing to see here
+    fanState[1] = 0;
+  }
+}
+
+unsigned long tempToggledAt;
+void updateTempState(int state) {
+  bool stateChanged = state != tempState[0];
+  tempState[0] = state;
+
+  // was 2 seconds ago last time it toggled
+  if (stateChanged == 1 && (currentTime - tempToggledAt > 250)) {
+    tempState[1] = 1;
+    tempToggledAt = currentTime;
+  }
+
+  // detect that blinking stopped
+  // if alarm && it changes && it has been more then 2 times the frex since last toggle
+  if (tempState[1] == 1 && (currentTime > tempToggledAt + 1000)) {
+    // nothing to see here
+    tempState[1] = 0;
+  }
+}
+
+// TODO check that this goes RED when off
+void greenRed(bool* greenLED, bool* redLED, bool value) {
+  // if no power set red led
+  if (value == 0) {
+    *greenLED = 0;
+    *redLED = 1;
+  // else if power set green led
+  } else {
+    *greenLED = 1;
+    *redLED = 0;
+  }
+}
+
+void greenRedOnAlarm(bool* greedLED, bool* redLED, bool alarm) {
+  // if not alarm set green led
+  if (alarm == 0) {
+    *greedLED = 1;
+    *redLED = 0;
+  // if alarm set red led
+  } else {
+    *greedLED = 0;
+    *redLED = 1;
+  }
+}
+
+void greenRedBlinkOnAlarm(bool* greenLED, bool* redLED, bool value, bool alarm) {
+// void greenRedBlinkOnAlarm(bool* greenLED, bool* redLED, bool* currentState, bool* alarmState) {
+  // if no alarm --> set green led
+  if (alarm == 0) {
+    *greenLED = 1;
+    *redLED = 0;
+    return;
+  }
+
+  // everything below assumes alarm state
+  // alarm and signal --> red led (blink on)
+  if (value == 0) {
+    *greenLED = 0;
+    *redLED = 1;
+  } 
+  // alarm and no signal --> no led (blink off)
+  else {
+    *greenLED = 0;
+    *redLED = 0;
+  }
+}
+
+void writeIOLEDPoweredOff() {
+    ioCon1.digitalWrite(0, HIGH);
+    ioCon1.digitalWrite(1, LOW);
+    ioCon1.digitalWrite(2, HIGH);
+    ioCon1.digitalWrite(3, HIGH);
+    ioCon1.digitalWrite(4, HIGH);
+    ioCon1.digitalWrite(5, HIGH);
+    ioCon1.digitalWrite(6, *(mapIO[6]) == 1 ? 0 : 1);
+}
+
+void updateIOLED() {
+  if (powerState == 0) {
+    writeIOLEDPoweredOff();
+    return;
+  }
+
+  for (int i = 0; i < IOMapLength; ++i) {
+    ioCon1.digitalWrite(i, *(mapIO[i]) == 1 ? 0 : 1);
+  }
+}
+
+int lastIOHash = -1;
+bool shouldUpdateIOLed() {
+  greenRedBlinkOnAlarm(&fanGreenLED, &fanRedLED, fanState[0], fanState[1]);
+  greenRedOnAlarm(&tempGreenLED, &tempRedLED, tempState[1]);
+  greenRed(&powerGreenLED, &powerRedLED, powerState);
+
+  byte ioHash = 0;
+  for (byte i = 0; i < IOMapLength; i++)
+  {
+    bitWrite(ioHash, i, *(mapIO[i]));
+  }
+
+  if (ioHash == lastIOHash) {
+    // Don't update i2c ctrl if same value
+    // Serial.println("Not updating!!");
+    return false;
+  }
+
+  // Serial.println("Updating IO!!");
+  lastIOHash = ioHash;
+  return true;
+}
+
+void updateState() {
+  bool fanS = digitalRead(FAN_PIN);
+  updateFanState(fanS);
+  updateTempState(fanS);
+  powerState = digitalRead(POWER_PIN);
+
+  nic1State = !digitalRead(NIC_1_PIN);
+  nic2State = !digitalRead(NIC_2_PIN);
+}
+
+bool handleButtonPress(int address, bool* value, long unsigned int* debounce) {
+  bool btnVal = !digitalRead(address);
+
+  if (btnVal != *value) {
+    *debounce = currentTime;
+    *value = btnVal;
+  }
+
+  if (*debounce > 0 && (currentTime - *debounce) > DEBOUNCE_DELAY) {
+    *debounce = 0;
+    return true;
+  }
+
+  return false;
+}
+
+void changeModes() {
+  bool btnVal = !digitalRead(BUTTON_MODE_PIN);
+
+  if (btnVal == 1) {
+    modeSelect = !modeSelect;
+  }
+}
+
+void tcaselect(uint8_t i) {
+  if (i > 7) return;
+ 
+  Wire.beginTransmission(TCAADDR);
+  Wire.write(1 << i);
+  Wire.endTransmission();  
+}
+
+void selectLeftHalf() {
+  tcaselect(2);
+}
+
+void selectRightHalf() {
+  tcaselect(1);
+}
+
+void writeEthernetActivity() {
+  selectLeftHalf();
+  resetEthernetBit(centerColumnsMemoryMap[0]);
+  computeEthernetActivity(centerColumnsMemoryMap[0], nic1State);
+  writeCenterColumnFirstBank(centerColumnsMemoryMap[0]);
+  delay(1);
+
+  selectRightHalf();
+  resetEthernetBit(centerColumnsMemoryMap[1]);
+  computeEthernetActivity(centerColumnsMemoryMap[1], nic2State);
+  writeCenterColumnFirstBank(centerColumnsMemoryMap[1]);
+}
+
+void loop() {
+  // Serial.println("loop start");
+  
+  updateTime();
+  updateState();
+  handleButtonPress(BUTTON_LOCK_PIN, &lockButtonState, &lastDebounceTimeLock);
+  if (handleButtonPress(BUTTON_MODE_PIN, &modeButtonState, &lastDebounceTimeMode)) {
+    changeModes();
+  }
+  
+  writeEthernetActivity();
+  
+  if (shouldUpdateIOLed() == true) {
+    resetBanks(centerColumnsMemoryMap[0]);
+
+    selectLeftHalf();
+    updateIOLED();
+    // displayUpToNumber(21);
+    displayPercentage(centerColumnsMemoryMap[0], 0.91);
+
+    delay(1);
+    resetBanks(centerColumnsMemoryMap[1]);
+    selectRightHalf();
+    updateIOLED();
+    displayUpToNumber(centerColumnsMemoryMap[1], random(24));
+  }
+  // if (currentTime - lastUpdateIO > IO_UPDATE_INTERVAL) {
+  //   lastUpdateIO = currentTime;
+  //   updateIOLED();
+  // }
+//   selectRightHalf();
+// selectLeftHalf();
+// shouldUpdateIOLed
+
+//   updateRightIOLED();
+  
+  delay(20);
+  // Serial.println("loop end");
+}