added circuit_breaker_enabled_by_val()

added and using circuit_breaker_enabled_by_val() where possible instead of circuit_breaker_enabled() which search for cbrk parameters by name, which is extensive process.

src/lib/circuit_breaker/circuit_breaker.cpp

@@ -53,3 +53,8 @@ bool circuit_breaker_enabled(const char *breaker, int32_t magic)
 
 	return (PX4_PARAM_GET_BYNAME(breaker, &val) == 0) && (val == magic);
 }
+
+bool circuit_breaker_enabled_by_val(int32_t breaker_val, int32_t magic)
+{
+	return (breaker_val == magic);
+}

src/lib/circuit_breaker/circuit_breaker.h

@@ -64,6 +64,7 @@
 __BEGIN_DECLS
 
 extern "C" __EXPORT bool circuit_breaker_enabled(const char *breaker, int32_t magic);
+extern "C" __EXPORT bool circuit_breaker_enabled_by_val(int32_t breaker_val, int32_t magic);
 
 __END_DECLS
 

src/lib/mixer_module/mixer_module.cpp

@@ -89,7 +89,7 @@ void MixingOutput::updateParams()
 {
 	ModuleParams::updateParams();
 
-	bool safety_disabled = circuit_breaker_enabled("CBRK_IO_SAFETY", CBRK_IO_SAFETY_KEY);
+	bool safety_disabled = circuit_breaker_enabled_by_val(_param_cbrk_io_safety.get(), CBRK_IO_SAFETY_KEY);
 
 	if (safety_disabled) {
 		_safety_off = true;

src/lib/mixer_module/mixer_module.hpp

@@ -234,7 +234,9 @@ private:
 		(ParamInt<px4::params::MC_AIRMODE>) _param_mc_airmode,   ///< multicopter air-mode
 		(ParamFloat<px4::params::MOT_SLEW_MAX>) _param_mot_slew_max,
 		(ParamFloat<px4::params::THR_MDL_FAC>) _param_thr_mdl_fac, ///< thrust to pwm modelling factor
-		(ParamInt<px4::params::MOT_ORDERING>) _param_mot_ordering
+		(ParamInt<px4::params::MOT_ORDERING>) _param_mot_ordering,
+		(ParamInt<px4::params::CBRK_IO_SAFETY>) _param_cbrk_io_safety
+
 	)
 };