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178 lines
6.3 KiB
178 lines
6.3 KiB
20 years ago
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/***********************************
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* $Id: m68360_enet.h,v 1.1 2002/03/02 15:01:07 gerg Exp $
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***********************************
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*
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***************************************
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* Definitions for the ETHERNET controllers
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***************************************
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*/
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#ifndef __ETHER_H
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#define __ETHER_H
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#include "quicc_simple.h"
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/*
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* transmit BD's
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*/
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#define T_R 0x8000 /* ready bit */
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#define E_T_PAD 0x4000 /* short frame padding */
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#define T_W 0x2000 /* wrap bit */
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#define T_I 0x1000 /* interrupt on completion */
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#define T_L 0x0800 /* last in frame */
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#define T_TC 0x0400 /* transmit CRC (when last) */
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#define T_DEF 0x0200 /* defer indication */
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#define T_HB 0x0100 /* heartbeat */
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#define T_LC 0x0080 /* error: late collision */
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#define T_RL 0x0040 /* error: retransmission limit */
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#define T_RC 0x003c /* retry count */
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#define T_UN 0x0002 /* error: underrun */
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#define T_CSL 0x0001 /* carier sense lost */
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#define T_ERROR (T_HB | T_LC | T_RL | T_UN | T_CSL)
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/*
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* receive BD's
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*/
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#define R_E 0x8000 /* buffer empty */
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#define R_W 0x2000 /* wrap bit */
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#define R_I 0x1000 /* interrupt on reception */
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#define R_L 0x0800 /* last BD in frame */
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#define R_F 0x0400 /* first BD in frame */
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#define R_M 0x0100 /* received because of promisc. mode */
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#define R_LG 0x0020 /* frame too long */
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#define R_NO 0x0010 /* non-octet aligned */
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#define R_SH 0x0008 /* short frame */
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#define R_CR 0x0004 /* receive CRC error */
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#define R_OV 0x0002 /* receive overrun */
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#define R_CL 0x0001 /* collision */
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#define ETHER_R_ERROR (R_LG | R_NO | R_SH | R_CR | R_OV | R_CL)
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/*
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* ethernet interrupts
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*/
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#define ETHERNET_GRA 0x0080 /* graceful stop complete */
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#define ETHERNET_TXE 0x0010 /* transmit error */
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#define ETHERNET_RXF 0x0008 /* receive frame */
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#define ETHERNET_BSY 0x0004 /* busy condition */
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#define ETHERNET_TXB 0x0002 /* transmit buffer */
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#define ETHERNET_RXB 0x0001 /* receive buffer */
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/*
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* ethernet protocol specific mode register (PSMR)
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*/
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#define ETHER_HBC 0x8000 /* heartbeat checking */
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#define ETHER_FC 0x4000 /* force collision */
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#define ETHER_RSH 0x2000 /* receive short frames */
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#define ETHER_IAM 0x1000 /* individual address mode */
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#define ETHER_CRC_32 (0x2<<10) /* Enable CRC */
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#define ETHER_PRO 0x0200 /* promiscuous */
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#define ETHER_BRO 0x0100 /* broadcast address */
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#define ETHER_SBT 0x0080 /* stop backoff timer */
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#define ETHER_LPB 0x0040 /* Loop Back Mode */
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#define ETHER_SIP 0x0020 /* sample input pins */
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#define ETHER_LCW 0x0010 /* late collision window */
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#define ETHER_NIB_13 (0x0<<1) /* # of ignored bits 13 */
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#define ETHER_NIB_14 (0x1<<1) /* # of ignored bits 14 */
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#define ETHER_NIB_15 (0x2<<1) /* # of ignored bits 15 */
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#define ETHER_NIB_16 (0x3<<1) /* # of ignored bits 16 */
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#define ETHER_NIB_21 (0x4<<1) /* # of ignored bits 21 */
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#define ETHER_NIB_22 (0x5<<1) /* # of ignored bits 22 */
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#define ETHER_NIB_23 (0x6<<1) /* # of ignored bits 23 */
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#define ETHER_NIB_24 (0x7<<1) /* # of ignored bits 24 */
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/*
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* ethernet specific parameters
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*/
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#define CRC_WORD 4 /* Length in bytes of CRC */
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#define C_PRES 0xffffffff /* preform 32 bit CRC */
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#define C_MASK 0xdebb20e3 /* comply with 32 bit CRC */
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#define CRCEC 0x00000000
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#define ALEC 0x00000000
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#define DISFC 0x00000000
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#define PADS 0x00000000
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#define RET_LIM 0x000f /* retry 15 times to send a frame before interrupt */
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#define ETH_MFLR 0x05ee /* 1518 max frame size */
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#define MINFLR 0x0040 /* Minimum frame size 64 */
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#define MAXD1 0x05ee /* Max dma count 1518 */
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#define MAXD2 0x05ee
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#define GADDR1 0x00000000 /* Clear group address */
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#define GADDR2 0x00000000
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#define GADDR3 0x00000000
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#define GADDR4 0x00000000
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#define P_PER 0x00000000 /*not used */
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#define IADDR1 0x00000000 /* Individual hash table not used */
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#define IADDR2 0x00000000
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#define IADDR3 0x00000000
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#define IADDR4 0x00000000
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#define TADDR_H 0x00000000 /* clear this regs */
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#define TADDR_M 0x00000000
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#define TADDR_L 0x00000000
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/* SCC Parameter Ram */
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#define RFCR 0x18 /* normal operation */
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#define TFCR 0x18 /* normal operation */
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#define E_MRBLR 1518 /* Max ethernet frame length */
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/*
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* ethernet specific structure
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*/
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typedef union {
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unsigned char b[6];
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struct {
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unsigned short high;
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unsigned short middl;
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unsigned short low;
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} w;
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} ETHER_ADDR;
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typedef struct {
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int max_frame_length;
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int promisc_mode;
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int reject_broadcast;
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ETHER_ADDR phys_adr;
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} ETHER_SPECIFIC;
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typedef struct {
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ETHER_ADDR dst_addr;
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ETHER_ADDR src_addr;
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unsigned short type_or_len;
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unsigned char data[1];
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} ETHER_FRAME;
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#define MAX_DATALEN 1500
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typedef struct {
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ETHER_ADDR dst_addr;
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ETHER_ADDR src_addr;
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unsigned short type_or_len;
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unsigned char data[MAX_DATALEN];
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unsigned char fcs[CRC_WORD];
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} ETHER_MAX_FRAME;
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/*
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* Internal ethernet function prototypes
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*/
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void ether_interrupt(int scc_num);
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/* mleslie: debug */
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/* static void ethernet_rx_internal(int scc_num); */
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/* static void ethernet_tx_internal(int scc_num); */
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/*
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* User callable routines prototypes (ethernet specific)
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*/
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void ethernet_init(int scc_number,
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alloc_routine *alloc_buffer,
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free_routine *free_buffer,
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store_rx_buffer_routine *store_rx_buffer,
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handle_tx_error_routine *handle_tx_error,
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handle_rx_error_routine *handle_rx_error,
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handle_lost_error_routine *handle_lost_error,
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ETHER_SPECIFIC *ether_spec);
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int ethernet_tx(int scc_number, void *buf, int length);
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#endif
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