AP_InertialSensor: Added hook to read the temperature compensation enum and control temp compensation

Author: ohyaiamhere

libraries/AP_InertialSensor/AP_InertialSensor.cpp

@@ -1103,8 +1103,10 @@ AP_InertialSensor::init(uint16_t loop_rate)
     /*
       see if user has setup for on-boot enable of temperature learning
      */
-    if (temperature_cal_running()) {
-        tcal_learning = true;
+    if (IsTempCalibrated == false){
+        if (temperature_cal_running()) {
+            tcal_learning = true;
+        }
     }
 #endif
 }
@@ -1733,9 +1735,11 @@ AP_InertialSensor::_init_gyro()
     // has just been powered on, so the temperature may be changing
     // rapidly. We use the average between start and end temperature
     // as the calibration temperature to minimise errors
-    for (uint8_t k=0; k<num_gyros; k++) {
-        start_temperature[k] = get_temperature(k);
-    }
+        if (IsTempCalibrated == false){
+            for (uint8_t k=0; k<num_gyros; k++) {
+                start_temperature[k] = get_temperature(k);
+            }
+        }
 #endif
 
     // the strategy is to average 50 points over 0.5 seconds, then do it
@@ -1823,7 +1827,9 @@ AP_InertialSensor::_init_gyro()
             _gyro_cal_ok[k] = true;
             _gyro_offset(k).set(new_gyro_offset[k]);
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-            caltemp_gyro(k).set(0.5 * (get_temperature(k) + start_temperature[k]));
+                if (IsTempCalibrated == false){
+                    caltemp_gyro(k).set(0.5 * (get_temperature(k) + start_temperature[k]));
+                }
 #endif
         }
     }
@@ -1846,14 +1852,18 @@ void AP_InertialSensor::_save_gyro_calibration()
         _gyro_offset(i).save();
         _gyro_id(i).save();
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-        caltemp_gyro(i).save();
+            if (IsTempCalibrated == false){
+                caltemp_gyro(i).save();
+            }
 #endif
     }
     for (uint8_t i=_gyro_count; i<INS_MAX_INSTANCES; i++) {
         _gyro_offset(i).set_and_save(Vector3f());
         _gyro_id(i).set_and_save(0);
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-        caltemp_gyro(i).set_and_save_ifchanged(-300);
+            if (IsTempCalibrated == false){
+                caltemp_gyro(i).set_and_save_ifchanged(-300);
+            }
 #endif
     }
 }
@@ -1980,12 +1990,14 @@ void AP_InertialSensor::update(void)
     _have_sample = false;
 
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-    if (tcal_learning && !temperature_cal_running()) {
-        AP_Notify::flags.temp_cal_running = false;
-        AP_Notify::events.temp_cal_saved = 1;
-        tcal_learning = false;
-        GCS_SEND_TEXT(MAV_SEVERITY_WARNING, "TCAL finished all IMUs");
-    }
+        if (IsTempCalibrated == false){
+            if (tcal_learning && !temperature_cal_running()) {
+            AP_Notify::flags.temp_cal_running = false;
+            AP_Notify::events.temp_cal_saved = 1;
+            tcal_learning = false;
+            GCS_SEND_TEXT(MAV_SEVERITY_WARNING, "TCAL finished all IMUs");
+            }
+        }
 #endif
 #if AP_SERIALMANAGER_IMUOUT_ENABLED
     if (uart.imu_out_uart) {
@@ -2294,11 +2306,13 @@ bool AP_InertialSensor::calibrating() const
 bool AP_InertialSensor::temperature_cal_running() const
 {
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-    for (uint8_t i=0; i<INS_MAX_INSTANCES; i++) {
-        if (tcal(i).enable == AP_InertialSensor_TCal::Enable::LearnCalibration) {
-            return true;
+        if (IsTempCalibrated == false){
+            for (uint8_t i=0; i<INS_MAX_INSTANCES; i++) {
+                if (tcal(i).enable == AP_InertialSensor_TCal::Enable::LearnCalibration) {
+                    return true;
+                }
+            }
         }
-    }
 #endif
     return false;
 }
@@ -2392,13 +2406,17 @@ void AP_InertialSensor::_acal_save_calibrations()
             _accel_id(i).save();
             _accel_id_ok[i] = true;
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-            caltemp_accel(i).set_and_save(get_temperature(i));
+                if (IsTempCalibrated == false){
+                    caltemp_accel(i).set_and_save(get_temperature(i));
+                }
 #endif
         } else {
             _accel_offset(i).set_and_save(Vector3f());
             _accel_scale(i).set_and_save(Vector3f());
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-            caltemp_accel(i).set_and_save(-300);
+                if (IsTempCalibrated == false){
+                    caltemp_accel(i).set_and_save(-300);
+                }
 #endif
         }
     }
@@ -2409,7 +2427,9 @@ void AP_InertialSensor::_acal_save_calibrations()
         _accel_offset(i).set_and_save(Vector3f());
         _accel_scale(i).set_and_save(Vector3f());
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-        caltemp_accel(i).set_and_save_ifchanged(-300);
+            if (IsTempCalibrated == false){
+                caltemp_accel(i).set_and_save_ifchanged(-300);
+            }
 #endif
     }
 
@@ -2662,7 +2682,9 @@ MAV_RESULT AP_InertialSensor::simple_accel_cal()
             _accel_id(k).save();
             _accel_id_ok[k] = true;
 #if HAL_INS_TEMPERATURE_CAL_ENABLE
-            caltemp_accel(k).set_and_save(get_temperature(k));
+                if (IsTempCalibrated == false){
+                    caltemp_accel(k).set_and_save(get_temperature(k));
+                }
 #endif
         }
         for (uint8_t k=num_accels; k<INS_MAX_INSTANCES; k++) {
@@ -2793,6 +2815,10 @@ void AP_InertialSensor::send_uart_data(void)
 #if AP_EXTERNAL_AHRS_ENABLED
 void AP_InertialSensor::handle_external(const AP_ExternalAHRS::ins_data_message_t &pkt)
 {
+    TempCalibration = pkt.TempCalibration;
+    if(TempCalibration == AP_ExternalAHRS::TempCal::IsTempCalibrated){
+        IsTempCalibrated = true;
+    }
     for (uint8_t i = 0; i < _backend_count; i++) {
         _backends[i]->handle_external(pkt);
     }

libraries/AP_InertialSensor/AP_InertialSensor.h

@@ -233,7 +233,9 @@ class AP_InertialSensor : AP_AccelCal_Client
 
     // get the accel filter rate in Hz
     uint16_t get_accel_filter_hz(void) const { return _accel_filter_cutoff; }
-
+private:
+    bool IsTempCalibrated = false;
+public:
 #if AP_INERTIALSENSOR_HARMONICNOTCH_ENABLED
     // setup the notch for throttle based tracking
     bool setup_throttle_gyro_harmonic_notch(float center_freq_hz, float lower_freq_hz, float ref, uint8_t harmonics);
@@ -429,6 +431,7 @@ class AP_InertialSensor : AP_AccelCal_Client
 #if AP_EXTERNAL_AHRS_ENABLED
     // handle external AHRS data
     void handle_external(const AP_ExternalAHRS::ins_data_message_t &pkt);
+    AP_ExternalAHRS::TempCal TempCalibration;
 #endif
 
 #if HAL_INS_TEMPERATURE_CAL_ENABLE