sys/arch/amiga/dev/zbusvar.h

   1 /*      $NetBSD: zbusvar.h,v 1.6 2003/04/09 01:54:44 thorpej Exp $      */
   2
   3 /*
   4  * Copyright (c) 1994 Christian E. Hopps
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Christian E. Hopps.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 #ifndef _ZBUSVAR_H_
  33 #define _ZBUSVAR_H_
  34
  35 struct zbus_args {
  36         void *pa;
  37         void *va;
  38         int size;
  39         int slot;
  40         int manid;
  41         int prodid;
  42         int serno;
  43 };
  44
  45 extern vaddr_t          ZTWOROMADDR;
  46 extern vaddr_t          ZTWOMEMADDR;
  47 extern u_int            NZTWOMEMPG;
  48 extern vaddr_t          ZBUSADDR;       /* kva of Zorro bus I/O pages */
  49 extern u_int            ZBUSAVAIL;      /* bytes of Zorro bus I/O space left */
  50
  51 #define ZTWOROMBASE     (0x00D80000)
  52 #define ZTWOROMTOP      (0x00F80000)
  53 #define NZTWOROMPG      btoc(ZTWOROMTOP-ZTWOROMBASE)
  54
  55 /*
  56  * maps a ztwo and/or A3000 builtin address into the mapped kva address
  57  */
  58 #if defined(__m68k__)
  59 #define ztwomap(pa) \
  60     ((volatile void *)((u_int)ZTWOROMADDR - ZTWOROMBASE + (u_int)(pa)))
  61 #define ztwopa(va) ((void *)(ZTWOROMBASE + (u_int)(va) - (u_int)ZTWOROMADDR))
  62 #else
  63 #define ztwomap(pa) (volatile void *)(pa)
  64 #define ztwopa(va) (void *)(va)
  65 #endif
  66
  67 /*
  68  * tests whether the address lies in our zorro2 rom space
  69  */
  70 #define isztwokva(kva) \
  71     ((u_int)(kva) >= ZTWOROMADDR && \
  72     (u_int)(kva) < \
  73     (ZTWOROMADDR + ZTWOROMTOP - ZTWOROMBASE))
  74 #define isztwopa(pa) ((u_int)(pa) >= ZTWOROMBASE && (u_int)(pa) <= ZTWOROMTOP)
  75 #define isztwomem(kva) \
  76     (ZTWOMEMADDR && (u_int)(kva) >= ZTWOMEMADDR && \
  77     (u_int)(kva) < (ZTWOMEMADDR + NZTWOMEMPG * PAGE_SIZE))
  78
  79 #define ZTHREEBASE      (0x40000000)
  80 #define ZTHREETOP       ((u_long)0x80000000)
  81 #define NZTHREEPG       btoc(ZTHREETOP - ZTHREEBASE)
  82
  83 #define iszthreepa(pa) ((u_int)(pa) >= ZTHREEBASE && (u_int)(pa) <= ZTHREETOP)
  84 #endif /* _ZBUS_H_ */