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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, provided that the above copyright notice appear in all
+ copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Header file for Ethernet.c.
+ */
+
+#ifndef _ETHERNET_H_
+#define _ETHERNET_H_
+
+ /* Includes: */
+ #include <avr/io.h>
+ #include <string.h>
+
+ #include "EthernetProtocols.h"
+ #include "ProtocolDecoders.h"
+ #include "ICMP.h"
+ #include "TCP.h"
+ #include "UDP.h"
+ #include "DHCP.h"
+ #include "ARP.h"
+ #include "IP.h"
+
+ /* Macros: */
+ /** Physical MAC address of the virtual server on the network */
+ #define SERVER_MAC_ADDRESS {0x00, 0x01, 0x00, 0x01, 0x00, 0x01}
+
+ /** Physical MAC address of the network broadcast address */
+ #define BROADCAST_MAC_ADDRESS {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}
+
+ /** Performs a comparison between two MAC addresses, indicating if they are identical.
+ *
+ * \param MAC1 First MAC address
+ * \param MAC2 Second MAC address
+ *
+ * \return True if the addresses match, false otherwise
+ */
+ #define MAC_COMPARE(MAC1, MAC2) (memcmp(MAC1, MAC2, sizeof(MAC_Address_t)) == 0)
+
+ /** Maximum size of an incomming or outgoing Ethernet frame in bytes */
+ #define ETHERNET_FRAME_SIZE_MAX 1500
+
+ /** Minimum size of an Ethernet packet in bytes, to conform to the Ethernet V2 packet standard */
+ #define ETHERNET_VER2_MINSIZE 0x0600
+
+ /** Return value for all sub protocol handling routines, indicating that no response packet has been generated */
+ #define NO_RESPONSE 0
+
+ /** Return value for all sub protocol handling routines, indicating that the packet has not yet been handled */
+ #define NO_PROCESS -1
+
+ /* Type Defines: */
+ /** Type define for an Ethernet frame buffer. */
+ typedef struct
+ {
+ uint8_t FrameData[ETHERNET_FRAME_SIZE_MAX]; /**< Ethernet frame contents */
+ uint16_t FrameLength; /**< Length in bytes of the Ethernet frame stored in the buffer */
+ bool FrameInBuffer; /**< Indicates if a frame is currently stored in the buffer */
+ } Ethernet_Frame_Info_t;
+
+ /** Type define for an Ethernet frame header */
+ typedef struct
+ {
+ MAC_Address_t Destination; /**< Physical MAC address of the packet recipient */
+ MAC_Address_t Source; /**< Physics MAC address of the packet source */
+
+ union
+ {
+ uint16_t EtherType; /**< Ethernet packet subprotocol type, for Ethernet V2 packets */
+ uint16_t Length; /**< Ethernet frame length, for Ethernet V1 packets */
+ };
+ } Ethernet_Frame_Header_t;
+
+ /* External Variables: */
+ extern Ethernet_Frame_Info_t FrameIN;
+ extern Ethernet_Frame_Info_t FrameOUT;
+
+ extern const MAC_Address_t ServerMACAddress;
+ extern const IP_Address_t ServerIPAddress;
+ extern const MAC_Address_t BroadcastMACAddress;
+ extern const IP_Address_t BroadcastIPAddress;
+ extern const IP_Address_t ClientIPAddress;
+
+ /* Function Prototypes: */
+ void Ethernet_ProcessPacket(void);
+ uint16_t Ethernet_Checksum16(void* Data, uint16_t Bytes);
+
+#endif