lib_emac.h

基于sam7x256平台做的CAN与网口互转接口

#ifndef	__lib_emac_H
#define	__lib_emac_H
#include	"/LwIP/include/lwip/err.h"
/*
*********************************************************************************************************
*                                      AT91SAM7X256 EMAC DEFINES
*
* Note(s) : (1) These global #define's are required PRIOR to network configuration.
*********************************************************************************************************
*/

#define  EMAC_CFG_MAC_ADDR_SEL_NONE                 0       /* Do not explicity select a MAC address src   */
#define  EMAC_CFG_MAC_ADDR_SEL_EEPROM               1       /* EMAC MAC addr cfg'd from NIC's ext EEPROM.  */
#define  EMAC_CFG_MAC_ADDR_SEL_CFG                  2       /* EMAC MAC addr cfg'd by prod app @ init.     */

#define  EMAC_SPD_0                                 0       /* Link speed unknown, or link down            */
#define  EMAC_SPD_10                               10       /* Link speed = 10mbps                         */
#define  EMAC_SPD_100                             100       /* Link speed = 100mbps                        */

#define  EMAC_DUPLEX_UNKNOWN                        0       /* Duplex uknown or auto-neg incomplete        */
#define  EMAC_DUPLEX_HALF                           1       /* Duplex = Half Duplex                        */
#define  EMAC_DUPLEX_FULL                           2       /* Duplex = Full Duplex                        */

//* 网络配置寄存器的速度和双工位掩码
#define		EMAC_NCFGR_SPD_FD_MASK		0xFFFFFFFC

#define 	NB_TX_BUFS			16								//* 发送缓冲区个数
#define 	ETH_TX_BUF_SIZE		256								//* 发送缓冲区大小

#define		NB_RX_BUFS			32								//* 接收缓冲区个数
#define		ETH_RX_BUF_SIZE		128								//* EMAC数据手册规定接收缓冲区仅占128字节大小，128 * 32接收缓冲区共4096字节
/*
*********************************************************************************************************
*                                               DEFINES
*********************************************************************************************************
*/

#define DM9161AE_INIT_AUTO_NEG_RETRIES         3

                                                                /* Generic MII registers. */
#define MII_BMCR                            0x00                /* Basic mode control register */
#define MII_BMSR                            0x01                /* Basic mode status register  */
#define MII_PHYSID1                         0x02                /* PHYS ID 1                   */
#define MII_PHYSID2                         0x03                /* PHYS ID 2                   */
#define MII_ADVERTISE                       0x04                /* Advertisement control reg   */
#define MII_LPA                             0x05                /* Link partner ability reg    */
#define MII_EXPANSION                       0x06                /* Expansion register          */
#define MII_DCOUNTER                        0x12                /* Disconnect counter          */
#define MII_FCSCOUNTER                      0x13                /* False carrier counter       */
#define MII_NWAYTEST                        0x14                /* N-way auto-neg test reg     */
#define MII_RERRCOUNTER                     0x15                /* Receive error counter       */
#define MII_SREVISION                       0x16                /* Silicon revision            */
#define MII_RESV1                           0x17                /* Reserved...                 */
#define MII_LBRERROR                        0x18                /* Lpback, rx, bypass error    */
#define MII_PHYADDR                         0x19                /* PHY address                 */
#define MII_RESV2                           0x1A                /* Reserved...                 */
#define MII_TPISTATUS                       0x1B                /* TPI status for 10mbps       */
#define MII_NCONFIG                         0x1C                /* Network interface config    */

                                                                /* Basic mode control register. */
#define BMCR_RESV                         0x007F                /* Unused...                   */
#define BMCR_CTST                         0x0080                /* Collision test              */
#define BMCR_FULLDPLX                     0x0100                /* Full duplex                 */
#define BMCR_ANRESTART                    0x0200                /* Auto negotiation restart    */
#define BMCR_ISOLATE                      0x0400                /* Disconnect DP83840 from MII */
#define BMCR_PDOWN                        0x0800                /* Powerdown the DP83840       */
#define BMCR_ANENABLE                     0x1000                /* Enable auto negotiation     */
#define BMCR_SPEED100                     0x2000                /* Select 100Mbps              */
#define BMCR_LOOPBACK                     0x4000                /* TXD loopback bits           */
#define BMCR_RESET                        0x8000                /* Reset the DP83840           */

                                                                /* Basic mode status register. */
#define BMSR_ERCAP                        0x0001                /* Ext-reg capability          */
#define BMSR_JCD                          0x0002                /* Jabber detected             */
#define BMSR_LSTATUS                      0x0004                /* Link status                 */
#define BMSR_ANEGCAPABLE                  0x0008                /* Able to do auto-negotiation */
#define BMSR_RFAULT                       0x0010                /* Remote fault detected       */
#define BMSR_ANEGCOMPLETE                 0x0020                /* Auto-negotiation complete   */
#define BMSR_RESV                         0x07C0                /* Unused...                   */
#define BMSR_10HALF                       0x0800                /* Can do 10mbps, half-duplex  */
#define BMSR_10FULL                       0x1000                /* Can do 10mbps, full-duplex  */
#define BMSR_100HALF                      0x2000                /* Can do 100mbps, half-duplex */
#define BMSR_100FULL                      0x4000                /* Can do 100mbps, full-duplex */
#define BMSR_100BASE4                     0x8000                /* Can do 100mbps, 4k packets  */

                                                                /* Advertisement control reg   */
#define ADVERTISE_SLCT                    0x001F                /* Selector bits               */
#define ADVERTISE_CSMA                    0x0001                /* Only selector supported     */
#define ADVERTISE_10HALF                  0x0020                /* Try for 10mbps half-duplex  */
#define ADVERTISE_10FULL                  0x0040                /* Try for 10mbps full-duplex  */
#define ADVERTISE_100HALF                 0x0080                /* Try for 100mbps half-duplex */
#define ADVERTISE_100FULL                 0x0100                /* Try for 100mbps full-duplex */
#define ADVERTISE_100BASE4                0x0200                /* Try for 100mbps 4k packets  */
#define ADVERTISE_RESV                    0x1C00                /* Unused...                   */
#define ADVERTISE_RFAULT                  0x2000                /* Say we can detect faults    */
#define ADVERTISE_LPACK                   0x4000                /* Ack link partners response  */
#define ADVERTISE_NPAGE                   0x8000                /* Next page bit               */
                                                                /* Link partner ability reg    */
#define LPA_SLCT                          0x001F                /* Same as advertise selector  */
#define LPA_10HALF                        0x0020                /* Can do 10mbps half-duplex   */
#define LPA_10FULL                        0x0040                /* Can do 10mbps full-duplex   */
#define LPA_100HALF                       0x0080                /* Can do 100mbps half-duplex  */
#define LPA_100FULL                       0x0100                /* Can do 100mbps full-duplex  */
#define LPA_100BASE4                      0x0200                /* Can do 100mbps 4k packets   */
#define LPA_RESV                          0x1C00                /* Unused...                   */
#define LPA_RFAULT                        0x2000                /* Link partner faulted        */
#define LPA_LPACK                         0x4000                /* Link partner acked us       */
#define LPA_NPAGE                         0x8000                /* Next page bit               */

#define LPA_DUPLEX		(LPA_10FULL | LPA_100FULL)
#define LPA_100			(LPA_100FULL | LPA_100HALF | LPA_100BASE4)

                                                                /* Expansion reg for auto-neg  */
#define EXPANSION_NWAY                    0x0001                /* Can do N-way auto-nego      */
#define EXPANSION_LCWP                    0x0002                /* Got new RX page code word   */
#define EXPANSION_ENABLENPAGE             0x0004                /* This enables npage words    */
#define EXPANSION_NPCAPABLE               0x0008                /* Link partner supports npage */
#define EXPANSION_MFAULTS                 0x0010                /* Multiple faults detected    */
#define EXPANSION_RESV                    0xFFE0                /* Unused...                   */

                                                                /* N-way test register         */
#define NWAYTEST_RESV1                    0x00FF                /* Unused...                   */
#define NWAYTEST_LOOPBACK                 0x0100                /* Enable loopback for N-way   */
#define NWAYTEST_RESV2                    0xFE00                /* Unused...                   */

#define SPD_10				                  10
#define SPD_100		                         100
                                                                 /* Duplex, half or full        */
#define DUPLEX_HALF				            0x00
#define DUPLEX_FULL				            0x01


#define MII_DM9161_ID                 0x0181b8a0                /* PHY ID                      */

#define AT91C_PHY_ADDR	                      31                /* PHY Address                 */