1 /* 2 * Copyright (c) 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)if_ecreg.h 8.1 (Berkeley) 06/11/93 8 */ 9 /* 10 * Device definitions for the i82586 generally and the 3com ec507 11 * ISA bus ethernet controller. 12 */ 13 /* 14 * Intermediate System Control Block pointer 15 */ 16 struct ec_iscp { 17 u_short busy; 18 u_short scb_off; 19 caddr_t scb_base; 20 }; 21 /* 22 * System Control Block 23 */ 24 struct ec_scb { 25 u_short status; 26 #define CX 0x8000 27 #define FR 0x4000 28 #define CNA 0x2000 29 #define RNR 0x1000 30 #define CU_STATE 0x700 31 #define CUS_IDLE 0x000 32 #define CUS_SUSPENDED 0x100 33 #define CUS_ACTIVE 0x200 34 #define RU_STATE 0x70 35 #define RUS_IDLE 0x00 36 #define RUS_SUSPENDED 0x10 37 #define RUS_OVERRUN 0x20 38 #define RUS_READY 0x40 39 u_short command; 40 #define CU_NOP 0 41 #define CU_START 0x100 42 #define RU_NOP 0 43 #define RU_START 0x100 44 #define RU_ABORT 0x400 45 #define ACK_CX 0x8000 46 #define ACK_RX 0x4000 47 #define ACK_CNA 0x2000 48 #define ACK_RNR 0x1000 49 u_short cbl_off; 50 u_short rfa_off; 51 struct errors { 52 u_short crc; 53 u_short alignment; 54 u_short resource; 55 u_short overrun; 56 } scb_errs; 57 }; 58 59 /* 60 * Individual Address Setup 61 */ 62 struct ec_iasetup { 63 u_short com0; 64 #define COM0_A 0x1000 65 #define COM0_OK 0x2000 66 #define COM0_B 0x4000 67 #define COM0_C 0x8000 68 u_short com1; 69 #define COM1_IASETUP 0x1 70 #define COM1_I 0x2000 71 #define COM1_S 0x4000 72 #define COM1_EL 0x8000 73 u_short next_off; 74 u_char srcaddr[6]; 75 }; 76 77 /* 78 * Load Multicast Addresses 79 */ 80 81 struct ec_mcsetup { 82 u_short com0; 83 u_short com1; 84 #define COM1_MCSETUP 0x3 85 u_short next_off; 86 u_short count; /* number of bytes, 14 bits only */ 87 /* char mcaddrs[6]; /* white lie, data goes here */ 88 }; 89 90 /* 91 * Transmit Command 92 */ 93 struct ec_transmit { 94 u_short com0; 95 #define COLLISIONS(p) (p->com0 & 0xf) 96 #define EXCOL 0x10 /* Excessive Collisions, Aborted */ 97 #define HEARTBEAT 0x20 /* CDT signal monitored and OK (good) */ 98 #define TXDEFFERED 0x40 /* ``due to Previous Link Activity'' */ 99 #define DMALATE 0x80 /* DMA underrun */ 100 #define NOCTS 0x100 /* Transmission stopped due to ... */ 101 #define NOCARSENSE 0x200 /* Loss of Carrier sense during TX */ 102 #define LATECOLL 0x400 /* Late Collision detected */ 103 #define TXERRS 0x7d0 /* Various Bad Things */ 104 u_short com1; 105 #define COM1_TRANSMIT 0x4 106 u_short next_off; 107 u_short tbd_off; 108 u_char dstaddr[6]; 109 u_short proto; /* Length for 802.3 */ 110 /* 111 * }; struct ec_tba { 112 * 113 * Transmit Buffer Descriptor 114 * This really should be a separate structure, 115 * but it will be convenient to lump them together. 116 */ 117 u_short count; 118 u_short next_tbd_off; 119 caddr_t buffer; 120 }; 121 122 /* 123 * Receive Frame Descriptor 124 */ 125 struct ec_rfd { 126 u_short rfd0; 127 u_short rfd1; 128 u_short next_off; 129 u_short rbd_off; 130 struct ether_header eh; 131 u_short mbz; 132 /* 133 * }; struct ec_rbd { 134 * 135 * Receive Buffer Descriptor 136 */ 137 u_short count; 138 #define RBD_EOF 0x8000 139 #define RBD_F 0x4000 140 u_short next_rbd_off; 141 caddr_t buffer; 142 u_short size; 143 u_short mbz2; 144 }; 145 146 /* 147 * Set Operating Parameters 148 */ 149 struct ec_82586params { 150 u_char count; 151 u_char fifolimit; 152 u_char save_bad_frames; 153 u_char data1; /* addr len, no src ins, lpbk, prmble */ 154 u_char priority; 155 u_char ifspacing; 156 u_char mbz1; 157 u_char data2; /* max restries, slot time high */ 158 u_char promisc; /* brddis, mnch/nrz, tnocr, crc16, bstf, pad */ 159 #define M_PROMISC 1 160 #define M_TNOCR 8 161 u_char cdf_cds; /* carrier detect/sense filter(length) & src */ 162 u_char min_frame_len; 163 u_char mbz2[3]; 164 }; 165 166 struct ec_configure { 167 u_short com0; 168 u_short com1; 169 #define COM1_CONFIGURE 0x2 170 u_short next_off; 171 struct ec_82586params modes; 172 }; 173 #define ECMTU 1518 174 #define ECMINSIZE 64 175 #define NTXBUF 2 176 #define NRXBUF 8 177 178 struct ec_mem { 179 struct ec_iscp iscp; 180 struct ec_scb scb; 181 struct ec_transmit tcom[NTXBUF]; 182 struct ec_rfd rcom[NRXBUF]; 183 struct ec_configure config; 184 struct ec_iasetup iasetup; 185 struct ec_mcsetup mcsetup; 186 char txbuf[NTXBUF][ECMTU]; 187 char rxbuf[NRXBUF][ECMTU]; 188 }; 189 190 struct ec_ports { 191 u_char data[6]; 192 u_char creg; 193 #define R_ECID 0x00 194 #define R_ETHER 0x01 195 #define R_REV 0x02 196 #define R_IEN 0x04 197 #define R_INT 0x08 198 #define R_LAD 0x10 199 #define R_LPB 0x20 200 #define R_CA 0x40 201 #define R_NORST 0x80 202 u_char mbz0[3]; 203 u_char port_ic; 204 u_char port_ca; 205 u_char mbz1; 206 u_char rom_conf; 207 u_char ram_conf; 208 u_char int_conf; 209 }; 210