NodeIDAllocationData.hpp 4.18 KB
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/**
 * @file NodeIDAllocationData.hpp
 *
 * Defines basic functionality of UAVCAN NodeIDAllocationData.1.0 subscription
 *
 * @author Peter van der Perk <peter.vanderperk@nxp.com>
 */

#pragma once

#include "../NodeManager.hpp"

//Quick and Dirty PNP imlementation only V1 for now as well
#include <uavcan/node/ID_1_0.h>
#include <uavcan/pnp/NodeIDAllocationData_1_0.h>
#include <uavcan/pnp/NodeIDAllocationData_2_0.h>

#define PNP1_PORT_ID                                 uavcan_pnp_NodeIDAllocationData_1_0_FIXED_PORT_ID_
#define PNP1_PAYLOAD_SIZE                            uavcan_pnp_NodeIDAllocationData_1_0_SERIALIZATION_BUFFER_SIZE_BYTES_
#define PNP2_PORT_ID                                 uavcan_pnp_NodeIDAllocationData_2_0_FIXED_PORT_ID_
#define PNP2_PAYLOAD_SIZE                            uavcan_pnp_NodeIDAllocationData_2_0_SERIALIZATION_BUFFER_SIZE_BYTES_

#include "BaseSubscriber.hpp"

class UavcanNodeIDAllocationDataSubscriber : public UavcanBaseSubscriber
{
public:
	UavcanNodeIDAllocationDataSubscriber(CanardInstance &ins, NodeManager &nmgr) :
		UavcanBaseSubscriber(ins, "NodeIDAllocationData", 0), _nmgr(nmgr) { };

	void subscribe() override
	{
		// Subscribe to messages uavcan.pnp.NodeIDAllocationData
		canardRxSubscribe(&_canard_instance,
				  CanardTransferKindMessage,
				  (_canard_instance.mtu_bytes == CANARD_MTU_CAN_FD ? PNP2_PORT_ID : PNP1_PORT_ID),  // The fixed Subject-ID
				  (_canard_instance.mtu_bytes == CANARD_MTU_CAN_FD ? PNP2_PAYLOAD_SIZE : PNP1_PAYLOAD_SIZE),
				  CANARD_DEFAULT_TRANSFER_ID_TIMEOUT_USEC,
				  &_canard_sub);

		_port_id = _canard_instance.mtu_bytes == CANARD_MTU_CAN_FD ? PNP2_PORT_ID : PNP1_PORT_ID;

	};

	void callback(const CanardTransfer &receive) override
	{
		PX4_INFO("NodeIDAllocationData");

		if (_canard_instance.mtu_bytes == CANARD_MTU_CAN_FD) {
			uavcan_pnp_NodeIDAllocationData_2_0 node_id_alloc_msg {};
			size_t msg_size_in_bytes = receive.payload_size;
			uavcan_pnp_NodeIDAllocationData_2_0_deserialize_(&node_id_alloc_msg, (const uint8_t *)receive.payload,
					&msg_size_in_bytes);
			/// do something with the data
			_nmgr.HandleNodeIDRequest(node_id_alloc_msg);

		} else {
			uavcan_pnp_NodeIDAllocationData_1_0 node_id_alloc_msg {};
			size_t msg_size_in_bytes = receive.payload_size;
			uavcan_pnp_NodeIDAllocationData_1_0_deserialize_(&node_id_alloc_msg, (const uint8_t *)receive.payload,
					&msg_size_in_bytes);
			/// do something with the data
			_nmgr.HandleNodeIDRequest(node_id_alloc_msg);
		}

	};

private:
	NodeManager &_nmgr;

};