co2_sensor: Drop unused state 'CALIBRATION'

ampel-firmware/co2_sensor.cpp

@@ -36,7 +36,6 @@ namespace sensor {
    * INVALID -> sensor does output invalid CO2 measurements (== 0 ppm)
    * NEEDS_CALIBRATION -> sensor measurements are too low (< 250 ppm)
    * PREPARE_CALIBRATION -> forced calibration was initiated, waiting for stable measurements
-   * CALIBRATION -> the sensor does calibrate itself
    */
   enum state {
     INITIAL,
@@ -45,8 +44,7 @@ namespace sensor {
     INVALID,
     NEEDS_CALIBRATION,
     PREPARE_CALIBRATION_UNSTABLE,
-    PREPARE_CALIBRATION_STABLE,
-    CALIBRATION
+    PREPARE_CALIBRATION_STABLE
   };
   const char *state_names[] = {
       "INITIAL",
@@ -55,8 +53,7 @@ namespace sensor {
       "INVALID",
       "NEEDS_CALIBRATION",
       "PREPARE_CALIBRATION_UNSTABLE",
-      "PREPARE_CALIBRATION_STABLE",
-      "CALIBRATION" };
+      "PREPARE_CALIBRATION_STABLE" };
   state current_state = INITIAL;
   void switchState(state);
 
@@ -172,7 +169,6 @@ namespace sensor {
   }
 
   void calibrateAndRestart() {
-    switchState(CALIBRATION);
     Serial.print(F("Calibrating SCD30 now..."));
     scd30.setAltitudeCompensation(config::altitude_above_sea_level);
     scd30.setForcedRecalibrationFactor(config::co2_calibration_level);
@@ -269,8 +265,6 @@ namespace sensor {
     case PREPARE_CALIBRATION_STABLE:
       led_effects::showWaitingLED(color::green);
       break;
-    case CALIBRATION: // Nothing to do, will restart soon.
-      break;
     default:
       Serial.println(F("Encountered unknown sensor state")); // This should not happen.
     }