Add proper error return

Author: cujomalainey

src/ANTPLUS_Defines.h

@@ -10,6 +10,7 @@
 // Errors
 #define ANTPLUS_RESET_RADIO_FAILED 1
 #define ANTPLUS_MAX_CHANNEL_CHECK_FAILED 2
+#define ANTPLUS_NO_MORE_CHANNELS 255
 
 // State
 #define ANTPLUS_DRIVER_STATE_UNKNOWN 0
@@ -19,4 +20,4 @@
 #define ANTPLUS_RESET_NO_WAIT_FOR_STARTUP 0
 #define ANTPLUS_RESET_WAIT_FOR_STARTUP 1
 
-#endif // ANTPLUS_DEFINES_h
+#endif // ANTPLUS_DEFINES_h

src/MainClasses/ANTPLUS_AntPlusRouter.cpp

@@ -97,7 +97,7 @@ uint8_t AntPlusRouter::addProfileToNextChannel(BaseProfile* profile) {
  return i;
  }
  }
- return 255; //TODO change this to a define
+ return ANTPLUS_NO_MORE_CHANNELS;
 }
 
 void AntPlusRouter::loop() {

src/MainClasses/ANTPLUS_AntPlusRouter.h

@@ -31,7 +31,7 @@ class AntPlusRouter {
  /**
  * Associates a profile with the next lowest available channel
  * returns associated channel, if all channels full then it
- * returns TODO
+ * returns ANTPLUS_NO_MORE_CHANNELS
  */
  uint8_t addProfileToNextChannel(BaseProfile* profile);
  /**