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Annotation of sys/arch/sparc/dev/bwtworeg.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: bwtworeg.h,v 1.4 2003/06/02 23:27:53 millert Exp $    */
        !             2: /*     $NetBSD: bwtworeg.h,v 1.3 1996/02/27 00:32:39 pk Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1992, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  *
        !             8:  * This software was developed by the Computer Systems Engineering group
        !             9:  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
        !            10:  * contributed to Berkeley.
        !            11:  *
        !            12:  * All advertising materials mentioning features or use of this software
        !            13:  * must display the following acknowledgement:
        !            14:  *     This product includes software developed by the University of
        !            15:  *     California, Lawrence Berkeley Laboratory.
        !            16:  *
        !            17:  * Redistribution and use in source and binary forms, with or without
        !            18:  * modification, are permitted provided that the following conditions
        !            19:  * are met:
        !            20:  * 1. Redistributions of source code must retain the above copyright
        !            21:  *    notice, this list of conditions and the following disclaimer.
        !            22:  * 2. Redistributions in binary form must reproduce the above copyright
        !            23:  *    notice, this list of conditions and the following disclaimer in the
        !            24:  *    documentation and/or other materials provided with the distribution.
        !            25:  * 3. Neither the name of the University nor the names of its contributors
        !            26:  *    may be used to endorse or promote products derived from this software
        !            27:  *    without specific prior written permission.
        !            28:  *
        !            29:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            30:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            31:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            32:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            33:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            34:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            35:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            36:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            37:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            38:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            39:  * SUCH DAMAGE.
        !            40:  *
        !            41:  *     @(#)bwtworeg.h  8.1 (Berkeley) 6/11/93
        !            42:  */
        !            43:
        !            44: /*
        !            45:  * bwtwo display registers.
        !            46:  *
        !            47:  * The registers start at offset 0x400000 and repeat every 32 bytes
        !            48:  * (presumably only the low order address lines are decoded).  Video RAM
        !            49:  * starts at offset 0x800000.  We use separate pointers to each so that
        !            50:  * the sparc addressing modes work well.
        !            51:  */
        !            52: struct bwtworeg {
        !            53:        struct fbcontrol bw_fbc;
        !            54: };
        !            55:
        !            56: /* offsets */
        !            57: #define        BWREG_ID        0
        !            58: #define        BWREG_REG       0x400000
        !            59: #define        BWREG_MEM       0x800000
        !            60:
        !            61: /* same, but for gdb */
        !            62: struct bwtwo_all {
        !            63:        long    ba_id;                  /* ID = 0xfe010104 on my IPC */
        !            64:        char    ba_xxx0[0x400000-4];
        !            65:        struct  fbcontrol ba_reg;       /* control registers */
        !            66:        char    ba_xxx1[0x400000-32];
        !            67:        char    ba_ram[4096];           /* actually larger */
        !            68: };