sys/dev/mvme/memcvar.h

   1 /*      $NetBSD: memcvar.h,v 1.1 2002/02/12 20:38:46 scw Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Steve C. Woodford.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _MVME_MEMCVAR_H
  33 #define _MVME_MEMCVAR_H
  34
  35 struct memc_softc {
  36         struct device           sc_dev;
  37         bus_space_tag_t         sc_bust;
  38         bus_space_handle_t      sc_bush;
  39         struct evcnt            sc_evcnt;
  40 };
  41
  42 #define MEMC_NDEVS      2
  43
  44 #define memc_reg_read(sc, off) \
  45             bus_space_read_1((sc)->sc_bust, (sc)->sc_bush, (off))
  46 #define memc_reg_write(sc, off, v) \
  47             bus_space_write_1((sc)->sc_bust, (sc)->sc_bush, (off), (v))
  48
  49 /*
  50  * Some tweakable parameters. Mind you, I don't recommend changing
  51  * the ipl...
  52  * XXX: This should probably be ipl 7
  53  */
  54 #ifdef MVME68K
  55 #define MEMC_IRQ_LEVEL          6
  56 #else
  57 #error Define irq level for memory contoller
  58 #endif
  59
  60 extern  void    memc_init(struct memc_softc *);
  61
  62 #endif  /* _MVME_MEMCREG_H */