Fix MASSAGE-mode messing up acceleration config

- do not update nvs with low accel when changing to massage
- store and restore previous value when changing from/to massage mode

common/motorctl.cpp

@@ -620,17 +620,19 @@ uint32_t controlledMotor::getFadeDefault(fadeType_t fadeType){
 //function for editing or enabling the fading/ramp of the motor control
 
 //set/update fading duration/amount
-void controlledMotor::setFade(fadeType_t fadeType, uint32_t msFadeNew){
+void controlledMotor::setFade(fadeType_t fadeType, uint32_t msFadeNew, bool writeToNvs){
     //TODO: mutex for msFade variable also used in handle function
     switch(fadeType){
         case fadeType_t::ACCEL:
             ESP_LOGW(TAG, "[%s] changed fade-up time from %d to %d", config.name, config.msFadeAccel, msFadeNew);
-            writeAccelDuration(msFadeNew);
+            if (writeToNvs)
+                writeAccelDuration(msFadeNew);
             break;
         case fadeType_t::DECEL:
             ESP_LOGW(TAG, "[%s] changed fade-down time from %d to %d",config.name, config.msFadeDecel, msFadeNew);
             // write new value to nvs and update the variable
-            writeDecelDuration(msFadeNew);
+            if (writeToNvs)
+                writeDecelDuration(msFadeNew);
             break;
     }
 }

common/motorctl.hpp

@@ -54,7 +54,7 @@ class controlledMotor {
         uint32_t getFade(fadeType_t fadeType); //get currently set acceleration or deceleration fading time
         uint32_t getFadeDefault(fadeType_t fadeType); //get acceleration or deceleration fading time from config
         void setFade(fadeType_t fadeType, bool enabled); //enable/disable acceleration or deceleration fading
-        void setFade(fadeType_t fadeType, uint32_t msFadeNew); //set acceleration or deceleration fade time
+        void setFade(fadeType_t fadeType, uint32_t msFadeNew, bool writeToNvs = true); //set acceleration or deceleration fade time and write it to nvs by default
         bool toggleFade(fadeType_t fadeType); //toggle acceleration or deceleration on/off
 
         float getCurrentA() {return cSensor.read();}; //read current-sensor of this motor (Ampere)