www.pudn.com > zlIP-8051-rtl8019as.zip > etherif.h

/* 
 * Copyright (c) 2003 Electric Application Laboratory of NAN KAI University 
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 * 3. The name of the author may not be used to endorse or promote products 
 *    derived from this software without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
 * OF SUCH DAMAGE. 
 * 
 * Author: Li Zhanglin  
 * 
 */ 
 
/* net interface. fetch packet and send packet */ 
#define ETHER_TYPE_IP	0x0800	 
#define ETHER_TYPE_ARP  0x0806 
 
#define ETHER_ADDR_LEN	6	 
 
	 
/* the header of Ethernet packet */ 
struct SEtherHead 
{ 
	BYTE	DestAddr[ETHER_ADDR_LEN]; 
	BYTE	ScrAddr[ETHER_ADDR_LEN]; 
 
	/* 16 bits.0800H IP, 0806H ARP, value less than 0x0600 used in  
	IEEE802 to indicate the length of the packet*/ 
	WORD type;	 
	 
}; 
 
/* struct for every ethernet device */ 
struct SEtherDevice 
{ 
	BYTE Addr[ETHER_ADDR_LEN]; 
 
	/* send by this device */ 
	BOOL (DT_CODE * send)(void DT_XDATA *buf, WORD size)  REENTRANT_SIG; 
 
	/* get a packet from device buffer. returned packet is sorted 
	in buffer pointed by SMemHead. If no packet return NULL */ 
	struct SMemHead DT_XDATA * (DT_CODE * recv)() REENTRANT_SIG; 
}; 
 
BOOL EtherOutput(struct SMemHead DT_XDATA *MemHead,struct SNetIf DT_XDATA* NetIf,  
		IP_ADDR DestIP) REENTRANT_SIG; 
void EtherInput(struct SNetIf DT_XDATA * NetIf) REENTRANT_SIG; 
void EtherDevInit(struct SEtherDevice DT_XDATA * pDevice, BYTE EtherAddr[], 
				  BOOL (DT_CODE * send)(void DT_XDATA *buf, WORD size) REENTRANT_SIG, 
				  struct SMemHead DT_XDATA *(DT_CODE * recv)() REENTRANT_SIG) REENTRANT_MUL;