at91/libat91/emac.h

	emac.h revision 199767f8919635c4928607450d9e0abb932109ce
/******************************************************************************
 *
 * Filename: emac.h
 *
 * Definition of routine to set the MAC address.
 *
 * Revision information:
 *
 * 28AUG2004    kb_admin    initial creation
 *
 * BEGIN_KBDD_BLOCK
 * No warranty, expressed or implied, is included with this software.  It is
 * provided "AS IS" and no warranty of any kind including statutory or aspects
 * relating to merchantability or fitness for any purpose is provided.  All
 * intellectual property rights of others is maintained with the respective
 * owners.  This software is not copyrighted and is intended for reference
 * only.
 * END_BLOCK
 *
 * $FreeBSD$
 *****************************************************************************/


#ifndef _EMAC_H_
#define _EMAC_H_

extern void EMAC_SetMACAddress(unsigned char addr[6]);
extern void SetServerIPAddress(unsigned address);
extern void SetLocalIPAddress(unsigned address);
extern void EMAC_Init(void);
extern void TFTP_Download(unsigned address, char *filename);

#define MAX_RX_PACKETS      8
#define RX_PACKET_SIZE      1536
#define RX_BUFFER_START     0x21000000
#define RX_DATA_START       (RX_BUFFER_START + (8 * MAX_RX_PACKETS))

#define ARP_REQUEST     0x0001
#define ARP_REPLY       0x0002
#define PROTOCOL_ARP        0x0806
#define PROTOCOL_IP     0x0800
#define PROTOCOL_UDP        0x11

#define SWAP16(x)   ((((x) & 0xff) << 8) | ((x) >> 8))

typedef struct {
    unsigned    address;
    unsigned    size;
} receive_descriptor_t;

typedef struct {

    unsigned char   dest_mac[6];

    unsigned char   src_mac[6];

    unsigned short  frame_type;
    unsigned short  hard_type;
    unsigned short  prot_type;
    unsigned char   hard_size;
    unsigned char   prot_size;

    unsigned short  operation;

    unsigned char   sender_mac[6];
    unsigned char   sender_ip[4];

    unsigned char   target_mac[6];
    unsigned char   target_ip[4];

} __attribute__((__packed__)) arp_header_t;

typedef struct {
    unsigned char   ip_v_hl;
    unsigned char   ip_tos;
    unsigned short  ip_len;
    unsigned short  ip_id;
    unsigned short  ip_off;
    unsigned char   ip_ttl;
    unsigned char   ip_p;
    unsigned short  ip_sum;
    unsigned char   ip_src[4];
    unsigned char   ip_dst[4];
} __attribute__((__packed__)) ip_header_t;

typedef struct {
    unsigned char   dest_mac[6];
    unsigned char   src_mac[6];
    unsigned short  proto_mac;
    unsigned short  packet_length;
    ip_header_t iphdr;
} __attribute__((__packed__)) transmit_header_t;

typedef struct {
    unsigned short  src_port;
    unsigned short  dst_port;
    unsigned short  udp_len;
    unsigned short  udp_cksum;
} __attribute__((__packed__)) udp_header_t;

typedef struct {
    unsigned short  opcode;
    unsigned short  block_num;
    unsigned char   data[512];
} __attribute__((__packed__)) tftp_header_t;

// Preswap bytes
#define TFTP_RRQ_OPCODE     0x0100
#define TFTP_WRQ_OPCODE     0x0200
#define TFTP_DATA_OPCODE    0x0300
#define TFTP_ACK_OPCODE     0x0400
#define TFTP_ERROR_OPCODE   0x0500

/* MII registers definition */
#define MII_STS_REG 0x01
#define MII_STS_LINK_STAT   0x04
#if defined(BOOT_KB920X) || defined(BOOT_CENTIPAD)
#define MII_STS2_REG    0x11
#define MII_STS2_LINK   0x400
#define MII_STS2_100TX  0x4000
#define MII_STS2_FDX    0x200
#else
#define MII_SPEC_STS_REG 0x11
#define MII_SSTS_100FDX 0x8000
#define MII_SSTS_100HDX 0x4000
#define MII_SSTS_10FDX  0x2000
#define MII_SSTS_10HDX  0x1000
#endif

extern unsigned char localMACAddr[6];
extern unsigned localMAClow, localMAChigh;
extern unsigned localMACSet;
#define EMAC_Init()

#endif /* _EMAC_H_ */