sys/arch/vax/uba/uba_common.h

   1 /*      $NetBSD: uba_common.h,v 1.5 2008/03/11 05:34:02 matt Exp $ */
   2 /*-
   3  * Copyright (c) 1982, 1986 The Regents of the University of California.
   4  * All rights reserved.
   5  * (c) UNIX System Laboratories, Inc.
   6  * All or some portions of this file are derived from material licensed
   7  * to the University of California by American Telephone and Telegraph
   8  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   9  * the permission of UNIX System Laboratories, Inc.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      @(#)ubareg.h    7.8 (Berkeley) 5/9/91
  36  */
  37
  38 /*
  39  * VAX-specific parts of the Unibus softc.
  40  */
  41 struct uba_regs;
  42
  43 struct  uba_vsoftc {
  44         struct  uba_softc uv_sc;/* Common vars from dev/qbus/ubavar.h */
  45         struct  vax_bus_dma_tag uv_dmat;
  46         struct  vax_sgmap uv_sgmap;
  47         int     uv_size;        /* Size of UBA addressable memory */
  48         paddr_t uv_addr;        /* Physical address of map registers */
  49         struct  uba_regs *uv_uba;/* Where applicable */
  50         int     uh_ibase;
  51         int     uh_zvtime;
  52         int     uh_zvtotal;
  53         int     uh_zvcnt;
  54 };
  55
  56 /*
  57  * Size of unibus memory address space in pages
  58  * (also number of map registers).
  59  */
  60 #define UBAPAGES        496
  61 #define UBAIOADDR       0760000  /* start of I/O page */
  62 #define UBAIOPAGES      16
  63
  64 /*
  65  * DW780/DW750 hardware registers
  66  */
  67 struct uba_regs {
  68         volatile int    uba_cnfgr;      /* configuration register */
  69         volatile int    uba_cr;         /* control register */
  70         volatile int    uba_sr;         /* status register */
  71         volatile int    uba_dcr;        /* diagnostic control register */
  72         volatile int    uba_fmer;       /* failed map entry register */
  73         volatile int    uba_fubar;      /* failed UNIBUS address register */
  74         int             pad1[2];
  75         volatile int    uba_brsvr[4];
  76         volatile int    uba_brrvr[4];   /* receive vector registers */
  77         volatile int    uba_dpr[16];    /* buffered data path register */
  78         int             pad2[480];
  79         struct pte      uba_map[UBAPAGES]; /* unibus map register */
  80         int             pad3[UBAIOPAGES]; /* no maps for device address space */
  81 };
  82
  83 void    uba_dma_init(struct uba_vsoftc *);