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/* $OpenBSD: lance.h,v 1.1 2013/10/28 22:13:12 miod Exp $ */
/* $NetBSD: lance.h,v 1.1 2013/01/13 14:10:55 tsutsui Exp $ */
/*-
* Copyright (c) 1982, 1992, 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. 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_lereg.h 8.2 (Berkeley) 10/30/93
*/
#define LEMTU 1518
#define LEMINSIZE 60 /* should be 64 if mode DTCR is set */
#define LERBUF 8
#define LERBUFLOG2 3
#define LE_RLEN (LERBUFLOG2 << 13)
#define LE_NEXTRMD(x) (((x) + 1) & (LERBUF - 1))
#define LETBUF 1
#define LETBUFLOG2 0
#define LE_TLEN (LETBUFLOG2 << 13)
#define LE_NEXTTMD(x) (((x) + 1) & (LETBUF - 1))
/* Local Area Network Controller for Ethernet (LANCE) registers */
struct lereg {
volatile uint16_t ler_rdp; /* register data port */
uint16_t unused;
volatile uint16_t ler_rap; /* register address port */
};
/*
* lance memory
*/
/* receive message descriptors. bits/hadr are byte order dependent. */
struct lermd_v {
volatile uint16_t rmd0; /* low address of packet */
#if BYTE_ORDER == BIG_ENDIAN
volatile uint8_t rmd1_bits; /* descriptor bits */
volatile uint8_t rmd1_hadr; /* high address of packet */
#else
volatile uint8_t rmd1_hadr; /* high address of packet */
volatile uint8_t rmd1_bits; /* descriptor bits */
#endif
volatile int16_t rmd2; /* buffer byte count */
volatile uint16_t rmd3; /* message byte count */
};
/* transmit message descriptors */
struct letmd_v {
volatile uint16_t tmd0; /* low address of packet */
#if BYTE_ORDER == BIG_ENDIAN
volatile uint8_t tmd1_bits; /* descriptor bits */
volatile uint8_t tmd1_hadr; /* high address of packet */
#else
volatile uint8_t tmd1_hadr; /* high address of packet */
volatile uint8_t tmd1_bits; /* descriptor bits */
#endif
volatile int16_t tmd2; /* buffer byte count */
volatile uint16_t tmd3; /* transmit error bits */
};
struct lemem {
/* initialization block */
volatile uint16_t lem_mode; /* mode */
volatile uint16_t lem_padr[3]; /* physical address */
volatile uint16_t lem_ladrf[4]; /* logical address filter */
volatile uint16_t lem_rdra; /* receive descriptor addr */
volatile uint16_t lem_rlen; /* rda high and ring size */
volatile uint16_t lem_tdra; /* transmit descriptor addr */
volatile uint16_t lem_tlen; /* tda high and ring size */
uint16_t lem_pad0[4];
struct lermd_v lem_rmd[LERBUF];
struct letmd_v lem_tmd[LETBUF];
volatile uint8_t lem_rbuf[LERBUF][LEMTU];
volatile uint8_t lem_tbuf[LETBUF][LEMTU];
};
struct le_softc {
struct lereg *sc_reg;
struct lemem *sc_mem;
uint8_t sc_enaddr[6];
int sc_curtmd;
int sc_currmd;
};
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