94720e3009
i82586-based controller, similarily to e.g. ai(4), el(4) or ix(4). The driver was modelled after the ai(4) driver. Due to lack of better documentation, Linux 3c523 driver was used to find out 3c523-specific quirks. Of course, the necessary work was greatly reduced by our decend generic ic/i82586 code :) Finally, NetBSD supports an ethernet card on IBM PS/2!
70 lines
3.2 KiB
C
70 lines
3.2 KiB
C
/* $NetBSD: 3c523reg.h,v 1.1 2001/03/16 23:03:15 jdolecek Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* The 3c523 i/o space is 8 bytes long. The first 6 bytes is the ethernet
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* address, followed by control & status register and card's revision number.
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*/
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#define ELMC_IOADDR_BASE 0x300
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#define ELMC_IOADDR_SIZE 8
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#define ELMC_CTRL 6 /* control & status register */
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#define ELMC_REVISION 7 /* revision, first 4 bits only */
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#define ELMC_REVISION_MASK 0xf
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/*
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* The following define the bits for the control & status register.
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*
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* The bank select registers can be used if there is more than 16KB
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* of memory on the card. Bank 3 is the one for the bottom 16KB
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* (i.e. the common size), but the card defaults to bank 0. Hence we
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* need to set the bank to 3 to make the card operate at all.
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*/
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#define ELMC_CTRL_BS0 0x01 /* RW bank select */
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#define ELMC_CTRL_BS1 0x02 /* RW bank select */
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#define ELMC_CTRL_BS3 (ELMC_CTRL_BS0|ELMC_CTRL_BS1) /* shortcut */
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#define ELMC_CTRL_INT 0x04 /* RW interrupt enable, assert high */
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#define ELMC_CTRL_LOOP 0x20 /* RW loopback enable, assert high */
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#define ELMC_CTRL_CHA 0x40 /* RW channel attention, assert high */
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#define ELMC_CTRL_RST 0x80 /* RW 82586 reset, assert low */
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/*
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* The base memory space address is 0xc0000 (see 3c523 docs). The card
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* has actually 24KB of memory, but we only use first 16KB -
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* the upper 8KB is card's BIOS.
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*/
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#define ELMC_MADDR_BASE 0x0c0000
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#define ELMC_MADDR_SIZE 0x4000 /* use only 16K of shared mem */
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