1 /* $NetBSD: lance.h,v 1.1 2013/01/13 14:10:55 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1982, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)if_lereg.h 8.2 (Berkeley) 10/30/93 32 */ 33 34 #define LEMTU 1518 35 #define LEMINSIZE 60 /* should be 64 if mode DTCR is set */ 36 #define LERBUF 8 37 #define LERBUFLOG2 3 38 #define LE_RLEN (LERBUFLOG2 << 13) 39 #define LE_NEXTRMD(x) (((x) + 1) & (LERBUF - 1)) 40 #define LETBUF 1 41 #define LETBUFLOG2 0 42 #define LE_TLEN (LETBUFLOG2 << 13) 43 #define LE_NEXTTMD(x) (((x) + 1) & (LETBUF - 1)) 44 45 /* Local Area Network Controller for Ethernet (LANCE) registers */ 46 struct lereg { 47 volatile uint16_t ler_rdp; /* register data port */ 48 volatile uint16_t ler_rap; /* register address port */ 49 }; 50 51 /* 52 * lance memory 53 */ 54 55 /* receive message descriptors. bits/hadr are byte order dependent. */ 56 struct lermd_v { 57 volatile uint16_t rmd0; /* low address of packet */ 58 #if BYTE_ORDER == BIG_ENDIAN 59 volatile uint8_t rmd1_bits; /* descriptor bits */ 60 volatile uint8_t rmd1_hadr; /* high address of packet */ 61 #else 62 volatile uint8_t rmd1_hadr; /* high address of packet */ 63 volatile uint8_t rmd1_bits; /* descriptor bits */ 64 #endif 65 volatile int16_t rmd2; /* buffer byte count */ 66 volatile uint16_t rmd3; /* message byte count */ 67 }; 68 69 /* transmit message descriptors */ 70 struct letmd_v { 71 volatile uint16_t tmd0; /* low address of packet */ 72 #if BYTE_ORDER == BIG_ENDIAN 73 volatile uint8_t tmd1_bits; /* descriptor bits */ 74 volatile uint8_t tmd1_hadr; /* high address of packet */ 75 #else 76 volatile uint8_t tmd1_hadr; /* high address of packet */ 77 volatile uint8_t tmd1_bits; /* descriptor bits */ 78 #endif 79 volatile int16_t tmd2; /* buffer byte count */ 80 volatile uint16_t tmd3; /* transmit error bits */ 81 }; 82 83 struct lemem { 84 /* initialization block */ 85 volatile uint16_t lem_mode; /* mode */ 86 volatile uint16_t lem_padr[3]; /* physical address */ 87 volatile uint16_t lem_ladrf[4]; /* logical address filter */ 88 volatile uint16_t lem_rdra; /* receive descriptor addr */ 89 volatile uint16_t lem_rlen; /* rda high and ring size */ 90 volatile uint16_t lem_tdra; /* transmit descriptor addr */ 91 volatile uint16_t lem_tlen; /* tda high and ring size */ 92 uint16_t lem_pad0[4]; 93 struct lermd_v lem_rmd[LERBUF]; 94 struct letmd_v lem_tmd[LETBUF]; 95 volatile uint8_t lem_rbuf[LERBUF][LEMTU]; 96 volatile uint8_t lem_tbuf[LETBUF][LEMTU]; 97 }; 98 99 struct le_softc { 100 struct lereg *sc_reg; 101 struct lemem *sc_mem; 102 uint8_t sc_enaddr[6]; 103 int sc_curtmd; 104 int sc_currmd; 105 }; 106