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jeremybenn |
//*----------------------------------------------------------------------------
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//* ATMEL Microcontroller Software Support - ROUSSET -
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//*----------------------------------------------------------------------------
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//* The software is delivered "AS IS" without warranty or condition of any
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//* kind, either express, implied or statutory. This includes without
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//* limitation any warranty or condition with respect to merchantability or
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//* fitness for any particular purpose, or against the infringements of
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//* intellectual property rights of others.
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//*----------------------------------------------------------------------------
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//* File Name : Emac.h
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//* Object : Emac header file
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//* Creation : Hi 11/18/2002
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//*
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//*----------------------------------------------------------------------------
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#ifndef AT91C_EMAC_H
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#define AT91C_EMAC_H
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//* Allows to display all IP header in the main.c
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//* If not defined, only ICMP packets are displayed
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#define AT91C_DISPLAY_ALL_IPHEADER 0
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#define NB_RX_BUFFERS 25 //* Number of receive buffers
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#define ETH_RX_BUFFER_SIZE 128 //*
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#define NB_TX_BUFFERS 2 //* Number of Transmit buffers
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#define ETH_TX_BUFFER_SIZE UIP_BUFSIZE //*
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#define AT91C_NO_IPPACKET 0
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#define AT91C_IPPACKET 1
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#define ARP_REQUEST 0x0001
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#define ARP_REPLY 0x0002
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#define PROT_ARP 0x0806
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#define PROT_IP 0x0800
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#define PROT_ICMP 0x01
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#define ICMP_ECHO_REQUEST 0x08
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#define ICMP_ECHO_REPLY 0x00
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#define AT91C_EMAC_CLKEN 0x2
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#define SWAP16(x) (((x & 0xff) << 8) | (x >> 8))
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#if 0
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//* Transfer descriptor structure
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typedef struct _AT91S_TdDescriptor {
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unsigned int addr;
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unsigned int status;
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}AT91S_TdDescriptor, *AT91PS_TdDescriptor;
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#endif
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//* Receive Transfer descriptor structure
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typedef struct _AT91S_RxTdDescriptor {
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unsigned int addr;
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union
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{
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unsigned int status;
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struct {
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unsigned int Length:11;
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unsigned int Res0:1;
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unsigned int Rxbuf_off:2;
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unsigned int StartOfFrame:1;
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unsigned int EndOfFrame:1;
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unsigned int Cfi:1;
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unsigned int VlanPriority:3;
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unsigned int PriorityTag:1;
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unsigned int VlanTag:1;
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unsigned int TypeID:1;
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unsigned int Sa4Match:1;
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unsigned int Sa3Match:1;
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unsigned int Sa2Match:1;
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unsigned int Sa1Match:1;
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unsigned int Res1:1;
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unsigned int ExternalAdd:1;
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unsigned int UniCast:1;
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unsigned int MultiCast:1;
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unsigned int BroadCast:1;
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}S_Status;
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}U_Status;
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}AT91S_RxTdDescriptor, *AT91PS_RxTdDescriptor;
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//* Transmit Transfer descriptor structure
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typedef struct _AT91S_TxTdDescriptor {
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unsigned int addr;
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union
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{
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unsigned int status;
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struct {
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unsigned int Length:11;
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unsigned int Res0:4;
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unsigned int LastBuff:1;
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unsigned int NoCrc:1;
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unsigned int Res1:10;
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unsigned int BufExhausted:1;
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unsigned int TransmitUnderrun:1;
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unsigned int TransmitError:1;
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unsigned int Wrap:1;
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unsigned int BuffUsed:1;
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}S_Status;
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}U_Status;
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}AT91S_TxTdDescriptor, *AT91PS_TxTdDescriptor;
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#define AT91C_OWNERSHIP_BIT 0x00000001
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/* Receive status defintion */
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#define AT91C_BROADCAST_ADDR ((unsigned int) (1 << 31)) //* Broadcat address detected
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#define AT91C_MULTICAST_HASH ((unsigned int) (1 << 30)) //* MultiCast hash match
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#define AT91C_UNICAST_HASH ((unsigned int) (1 << 29)) //* UniCast hash match
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#define AT91C_EXTERNAL_ADDR ((unsigned int) (1 << 28)) //* External Address match
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#define AT91C_SA1_ADDR ((unsigned int) (1 << 26)) //* Specific address 1 match
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#define AT91C_SA2_ADDR ((unsigned int) (1 << 25)) //* Specific address 2 match
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#define AT91C_SA3_ADDR ((unsigned int) (1 << 24)) //* Specific address 3 match
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#define AT91C_SA4_ADDR ((unsigned int) (1 << 23)) //* Specific address 4 match
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#define AT91C_TYPE_ID ((unsigned int) (1 << 22)) //* Type ID match
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#define AT91C_VLAN_TAG ((unsigned int) (1 << 21)) //* VLAN tag detected
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#define AT91C_PRIORITY_TAG ((unsigned int) (1 << 20)) //* PRIORITY tag detected
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#define AT91C_VLAN_PRIORITY ((unsigned int) (7 << 17)) //* PRIORITY Mask
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#define AT91C_CFI_IND ((unsigned int) (1 << 16)) //* CFI indicator
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#define AT91C_EOF ((unsigned int) (1 << 15)) //* EOF
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#define AT91C_SOF ((unsigned int) (1 << 14)) //* SOF
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#define AT91C_RBF_OFFSET ((unsigned int) (3 << 12)) //* Receive Buffer Offset Mask
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#define AT91C_LENGTH_FRAME ((unsigned int) 0x07FF) //* Length of frame
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/* Transmit Status definition */
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#define AT91C_TRANSMIT_OK ((unsigned int) (1 << 31)) //*
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#define AT91C_TRANSMIT_WRAP ((unsigned int) (1 << 30)) //* Wrap bit: mark the last descriptor
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#define AT91C_TRANSMIT_ERR ((unsigned int) (1 << 29)) //* RLE:transmit error
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#define AT91C_TRANSMIT_UND ((unsigned int) (1 << 28)) //* Transmit Underrun
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#define AT91C_BUF_EX ((unsigned int) (1 << 27)) //* Buffers exhausted in mid frame
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#define AT91C_TRANSMIT_NO_CRC ((unsigned int) (1 << 16)) //* No CRC will be appended to the current frame
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#define AT91C_LAST_BUFFER ((unsigned int) (1 << 15)) //*
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#define ARP_ETHER 1 /* Ethernet hardware address */
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#define ARPOP_REQUEST 1 /* Request to resolve address */
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#define ARPOP_REPLY 2 /* Response to previous request */
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#define RARPOP_REQUEST 3 /* Request to resolve address */
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#define RARPOP_REPLY 4 /* Response to previous request */
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typedef struct _AT91S_EthHdr
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{
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unsigned char et_dest[6]; /* Destination node */
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unsigned char et_src[6]; /* Source node */
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unsigned short et_protlen; /* Protocol or length */
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} AT91S_EthHdr, *AT91PS_EthHdr;
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typedef struct _AT91S_ArpHdr
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{
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unsigned short ar_hrd; /* Format of hardware address */
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unsigned short ar_pro; /* Format of protocol address */
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unsigned char ar_hln; /* Length of hardware address */
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unsigned char ar_pln; /* Length of protocol address */
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unsigned short ar_op; /* Operation */
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unsigned char ar_sha[6]; /* Sender hardware address */
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unsigned char ar_spa[4]; /* Sender protocol address */
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unsigned char ar_tha[6]; /* Target hardware address */
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unsigned char ar_tpa[4]; /* Target protocol address */
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} AT91S_ArpHdr, *AT91PS_ArpHdr;
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//* IP Header structure
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typedef struct _AT91S_IPheader {
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unsigned char ip_hl_v; /* header length and version */
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unsigned char ip_tos; /* type of service */
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unsigned short ip_len; /* total length */
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unsigned short ip_id; /* identification */
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unsigned short ip_off; /* fragment offset field */
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unsigned char ip_ttl; /* time to live */
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unsigned char ip_p; /* protocol */
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unsigned short ip_sum; /* checksum */
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unsigned char ip_src[4]; /* Source IP address */
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unsigned char ip_dst[4]; /* Destination IP address */
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unsigned short udp_src; /* UDP source port */
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unsigned short udp_dst; /* UDP destination port */
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unsigned short udp_len; /* Length of UDP packet */
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unsigned short udp_xsum; /* Checksum */
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} AT91S_IPheader, *AT91PS_IPheader;
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//* ICMP echo header structure
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typedef struct _AT91S_IcmpEchoHdr {
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unsigned char type; /* type of message */
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unsigned char code; /* type subcode */
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unsigned short cksum; /* ones complement cksum of struct */
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unsigned short id; /* identifier */
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unsigned short seq; /* sequence number */
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}AT91S_IcmpEchoHdr, *AT91PS_IcmpEchoHdr;
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typedef struct _AT91S_EthPack
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{
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AT91S_EthHdr EthHdr;
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AT91S_ArpHdr ArpHdr;
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} AT91S_EthPack, *AT91PS_EthPack;
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#endif //* AT91C_EMAC_H
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