feat: Enhance MK2 driver with device state management and improved command handling

mk2driver/mockmk2.go

@@ -8,6 +8,8 @@ type mock struct {
 	c chan *Mk2Info
 }
 
+var _ ProtocolControl = (*mock)(nil)
+
 func NewMk2Mock() Mk2 {
 	tmp := &mock{
 		c: make(chan *Mk2Info, 1),
@@ -53,6 +55,49 @@ func (m *mock) SetStandby(_ bool) error {
 	return nil
 }
 
+func (m *mock) GetDeviceState() (DeviceState, error) {
+	return DeviceStateOn, nil
+}
+
+func (m *mock) SetDeviceState(_ DeviceState) error {
+	return nil
+}
+
+func (m *mock) ReadRAMVarByID(_ uint16) (int16, error) {
+	return 0, nil
+}
+
+func (m *mock) ReadSettingByID(_ uint16) (int16, error) {
+	return 0, nil
+}
+
+func (m *mock) SelectRAMVar(_ uint16) error {
+	return nil
+}
+
+func (m *mock) SelectSetting(_ uint16) error {
+	return nil
+}
+
+func (m *mock) ReadSelected() (int16, error) {
+	return 0, nil
+}
+
+func (m *mock) ReadRAMVarInfo(id uint16) (RAMVarInfo, error) {
+	return RAMVarInfo{
+		ID:        id,
+		Supported: false,
+	}, nil
+}
+
+func (m *mock) WriteSettingByID(_ uint16, _ int16) error {
+	return nil
+}
+
+func (m *mock) WriteRAMVarByID(_ uint16, _ int16) error {
+	return nil
+}
+
 func (m *mock) genMockValues() {
 	mult := 1.0
 	ledState := LedOff