Add static API_ID constant to response classes

All response classes that represent an actual API packet, now have this
constant, which should make it easier to use templates to define generic
methods that work for all response types.

Author: matthijskooijman

XBee.h

@@ -382,6 +382,8 @@ class ZBTxStatusResponse : public FrameIdResponse {
 		uint8_t getDeliveryStatus();
 		uint8_t getDiscoveryStatus();
 		bool isSuccess();
+
+	static const uint8_t API_ID = ZB_TX_STATUS_RESPONSE;
 };
 
 /**
@@ -396,6 +398,8 @@ class ZBRxResponse : public RxDataResponse {
 	uint8_t getDataLength();
 	// frame position where data starts
 	uint8_t getDataOffset();
+
+	static const uint8_t API_ID = ZB_RX_RESPONSE;
 private:
 	XBeeAddress64 _remoteAddress64;
 };
@@ -417,6 +421,8 @@ class ZBExplicitRxResponse : public ZBRxResponse {
 	uint8_t getDataLength();
 	// frame position where data starts
 	uint8_t getDataOffset();
+
+	static const uint8_t API_ID = ZB_EXPLICIT_RX_RESPONSE;
 };
 
 /**
@@ -448,6 +454,8 @@ class ZBRxIoSampleResponse : public ZBRxResponse {
 	uint8_t getDigitalMaskMsb();
 	uint8_t getDigitalMaskLsb();
 	uint8_t getAnalogMask();
+
+	static const uint8_t API_ID = ZB_IO_SAMPLE_RESPONSE;
 };
 
 #endif
@@ -461,6 +469,8 @@ class TxStatusResponse : public FrameIdResponse {
 		TxStatusResponse();
 		uint8_t getStatus();
 		bool isSuccess();
+
+	static const uint8_t API_ID = TX_STATUS_RESPONSE;
 };
 
 /**
@@ -487,6 +497,8 @@ class Rx16Response : public RxResponse {
 	Rx16Response();
 	uint8_t getRssiOffset();
 	uint16_t getRemoteAddress16();
+
+	static const uint8_t API_ID = RX_16_RESPONSE;
 protected:
 	uint16_t _remoteAddress;
 };
@@ -499,6 +511,8 @@ class Rx64Response : public RxResponse {
 	Rx64Response();
 	uint8_t getRssiOffset();
 	XBeeAddress64& getRemoteAddress64();
+
+	static const uint8_t API_ID = RX_64_RESPONSE;
 private:
 	XBeeAddress64 _remoteAddress;
 };
@@ -543,13 +557,16 @@ class Rx16IoSampleResponse : public RxIoSampleBaseResponse {
 	uint16_t getRemoteAddress16();
 	uint8_t getRssiOffset();
 
+	static const uint8_t API_ID = RX_16_IO_RESPONSE;
 };
 
 class Rx64IoSampleResponse : public RxIoSampleBaseResponse {
 public:
 	Rx64IoSampleResponse();
 	XBeeAddress64& getRemoteAddress64();
 	uint8_t getRssiOffset();
+
+	static const uint8_t API_ID = RX_64_IO_RESPONSE;
 private:
 	XBeeAddress64 _remoteAddress;
 };
@@ -563,6 +580,8 @@ class ModemStatusResponse : public XBeeResponse {
 public:
 	ModemStatusResponse();
 	uint8_t getStatus();
+
+	static const uint8_t API_ID = MODEM_STATUS_RESPONSE;
 };
 
 /**
@@ -593,6 +612,8 @@ class AtCommandResponse : public FrameIdResponse {
 		 * Returns true if status equals AT_OK
 		 */
 		bool isOk();
+
+		static const uint8_t API_ID = AT_COMMAND_RESPONSE;
 };
 
 /**
@@ -631,6 +652,8 @@ class RemoteAtCommandResponse : public AtCommandResponse {
 		 * Returns true if command was successful
 		 */
 		bool isOk();
+
+		static const uint8_t API_ID = REMOTE_AT_COMMAND_RESPONSE;
 	private:
 		XBeeAddress64 _remoteAddress64;
 };