Source to i386/isa/if_ecreg.h
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)if_ecreg.h 8.1 (Berkeley) 6/11/93
*/
/*
* Device definitions for the i82586 generally and the 3com ec507
* ISA bus ethernet controller.
*/
/*
* Intermediate System Control Block pointer
*/
struct ec_iscp {
u_short busy;
u_short scb_off;
caddr_t scb_base;
};
/*
* System Control Block
*/
struct ec_scb {
u_short status;
#define CX 0x8000
#define FR 0x4000
#define CNA 0x2000
#define RNR 0x1000
#define CU_STATE 0x700
#define CUS_IDLE 0x000
#define CUS_SUSPENDED 0x100
#define CUS_ACTIVE 0x200
#define RU_STATE 0x70
#define RUS_IDLE 0x00
#define RUS_SUSPENDED 0x10
#define RUS_OVERRUN 0x20
#define RUS_READY 0x40
u_short command;
#define CU_NOP 0
#define CU_START 0x100
#define RU_NOP 0
#define RU_START 0x100
#define RU_ABORT 0x400
#define ACK_CX 0x8000
#define ACK_RX 0x4000
#define ACK_CNA 0x2000
#define ACK_RNR 0x1000
u_short cbl_off;
u_short rfa_off;
struct errors {
u_short crc;
u_short alignment;
u_short resource;
u_short overrun;
} scb_errs;
};
/*
* Individual Address Setup
*/
struct ec_iasetup {
u_short com0;
#define COM0_A 0x1000
#define COM0_OK 0x2000
#define COM0_B 0x4000
#define COM0_C 0x8000
u_short com1;
#define COM1_IASETUP 0x1
#define COM1_I 0x2000
#define COM1_S 0x4000
#define COM1_EL 0x8000
u_short next_off;
u_char srcaddr[6];
};
/*
* Load Multicast Addresses
*/
struct ec_mcsetup {
u_short com0;
u_short com1;
#define COM1_MCSETUP 0x3
u_short next_off;
u_short count; /* number of bytes, 14 bits only */
/* char mcaddrs[6]; /* white lie, data goes here */
};
/*
* Transmit Command
*/
struct ec_transmit {
u_short com0;
#define COLLISIONS(p) (p->com0 & 0xf)
#define EXCOL 0x10 /* Excessive Collisions, Aborted */
#define HEARTBEAT 0x20 /* CDT signal monitored and OK (good) */
#define TXDEFFERED 0x40 /* ``due to Previous Link Activity'' */
#define DMALATE 0x80 /* DMA underrun */
#define NOCTS 0x100 /* Transmission stopped due to ... */
#define NOCARSENSE 0x200 /* Loss of Carrier sense during TX */
#define LATECOLL 0x400 /* Late Collision detected */
#define TXERRS 0x7d0 /* Various Bad Things */
u_short com1;
#define COM1_TRANSMIT 0x4
u_short next_off;
u_short tbd_off;
u_char dstaddr[6];
u_short proto; /* Length for 802.3 */
/*
* }; struct ec_tba {
*
* Transmit Buffer Descriptor
* This really should be a separate structure,
* but it will be convenient to lump them together.
*/
u_short count;
u_short next_tbd_off;
caddr_t buffer;
};
/*
* Receive Frame Descriptor
*/
struct ec_rfd {
u_short rfd0;
u_short rfd1;
u_short next_off;
u_short rbd_off;
struct ether_header eh;
u_short mbz;
/*
* }; struct ec_rbd {
*
* Receive Buffer Descriptor
*/
u_short count;
#define RBD_EOF 0x8000
#define RBD_F 0x4000
u_short next_rbd_off;
caddr_t buffer;
u_short size;
u_short mbz2;
};
/*
* Set Operating Parameters
*/
struct ec_82586params {
u_char count;
u_char fifolimit;
u_char save_bad_frames;
u_char data1; /* addr len, no src ins, lpbk, prmble */
u_char priority;
u_char ifspacing;
u_char mbz1;
u_char data2; /* max restries, slot time high */
u_char promisc; /* brddis, mnch/nrz, tnocr, crc16, bstf, pad */
#define M_PROMISC 1
#define M_TNOCR 8
u_char cdf_cds; /* carrier detect/sense filter(length) & src */
u_char min_frame_len;
u_char mbz2[3];
};
struct ec_configure {
u_short com0;
u_short com1;
#define COM1_CONFIGURE 0x2
u_short next_off;
struct ec_82586params modes;
};
#define ECMTU 1518
#define ECMINSIZE 64
#define NTXBUF 2
#define NRXBUF 8
struct ec_mem {
struct ec_iscp iscp;
struct ec_scb scb;
struct ec_transmit tcom[NTXBUF];
struct ec_rfd rcom[NRXBUF];
struct ec_configure config;
struct ec_iasetup iasetup;
struct ec_mcsetup mcsetup;
char txbuf[NTXBUF][ECMTU];
char rxbuf[NRXBUF][ECMTU];
};
struct ec_ports {
u_char data[6];
u_char creg;
#define R_ECID 0x00
#define R_ETHER 0x01
#define R_REV 0x02
#define R_IEN 0x04
#define R_INT 0x08
#define R_LAD 0x10
#define R_LPB 0x20
#define R_CA 0x40
#define R_NORST 0x80
u_char mbz0[3];
u_char port_ic;
u_char port_ca;
u_char mbz1;
u_char rom_conf;
u_char ram_conf;
u_char int_conf;
};