/* $NetBSD: zbusvar.h,v 1.10 2011/09/21 12:48:57 christos Exp $ */

/* $NetBSD: zbusvar.h,v 1.10 2011/09/21 12:48:57 christos Exp $ */

/*
* Copyright (c) 1994 Christian E. Hopps
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christian E. Hopps.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ZBUSVAR_H_
#define _ZBUSVAR_H_

struct zbus_args {
void *pa;
void *va;
int size;
int slot;
int manid;
int prodid;
int serno;
};

extern vaddr_t ZTWOROMADDR;
extern vaddr_t ZTWOMEMADDR;
extern u_int NZTWOMEMPG;
extern vaddr_t ZBUSADDR; /* kva of Zorro bus I/O pages */
extern u_int ZBUSAVAIL; /* bytes of Zorro bus I/O space left */

#define ZTWOROMBASE (0x00D80000)
#define ZTWOROMTOP (0x00F80000)
#define NZTWOROMPG btoc(ZTWOROMTOP-ZTWOROMBASE)

void *zbusmap(void *, u_int);

/*
* maps a ztwo and/or A3000 builtin address into the mapped kva address
*/
#if defined(__m68k__)
#define ztwomap(pa) \
((volatile void *)((u_int)ZTWOROMADDR - ZTWOROMBASE + (u_int)(pa)))
#define ztwopa(va) ((void *)(ZTWOROMBASE + (u_int)(va) - (u_int)ZTWOROMADDR))
#else
#define ztwomap(pa) ((volatile void *)(u_int)(pa))
#define ztwopa(va) ((void *)(u_int)(va))
#endif

/*
* tests whether the address lies in our zorro2 rom space
*/
#define isztwokva(kva) \
((u_int)(kva) >= ZTWOROMADDR && \
(u_int)(kva) < \
(ZTWOROMADDR + ZTWOROMTOP - ZTWOROMBASE))
#define isztwopa(pa) ((u_int)(pa) >= ZTWOROMBASE && (u_int)(pa) <= ZTWOROMTOP)
#define isztwomem(kva) \
(ZTWOMEMADDR && (u_int)(kva) >= ZTWOMEMADDR && \
(u_int)(kva) < (ZTWOMEMADDR + NZTWOMEMPG * PAGE_SIZE))

#define ZTHREEBASE (0x40000000)
#define ZTHREETOP ((u_long)0x80000000)
#define NZTHREEPG btoc(ZTHREETOP - ZTHREEBASE)

#define iszthreepa(pa) ((u_int)(pa) >= ZTHREEBASE && (u_int)(pa) <= ZTHREETOP)
#endif /* _ZBUS_H_ */