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/*
* Mesa 3-D graphics library
* Version: 5.0
*
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W HW mapping
*
* Copyright (c) 2003 - Borca Daniel
* Email : dborca@yahoo.com
* Web : http://www.geocities.com/dborca
*/
#ifndef MGA_HW_included
#define MGA_HW_included
/* set this to zero to use near pointers */
#define MGA_FARPTR 1
/* access macros */
#if MGA_FARPTR
#include <sys/farptr.h>
#define hwptr_pokeb(ptr, off, val) _farpokeb((ptr).selector, (ptr).offset32+(off), (val))
#define hwptr_pokew(ptr, off, val) _farpokew((ptr).selector, (ptr).offset32+(off), (val))
#define hwptr_pokel(ptr, off, val) _farpokel((ptr).selector, (ptr).offset32+(off), (val))
#define hwptr_peekb(ptr, off) _farpeekb((ptr).selector, (ptr).offset32+(off))
#define hwptr_peekw(ptr, off) _farpeekw((ptr).selector, (ptr).offset32+(off))
#define hwptr_peekl(ptr, off) _farpeekl((ptr).selector, (ptr).offset32+(off))
#define hwptr_select(ptr) _farsetsel((ptr).selector)
#define hwptr_unselect(ptr) (ptr).selector = _fargetsel()
#define hwptr_nspokeb(ptr, off, val) _farnspokeb((ptr).offset32+(off), (val))
#define hwptr_nspokew(ptr, off, val) _farnspokew((ptr).offset32+(off), (val))
#define hwptr_nspokel(ptr, off, val) _farnspokel((ptr).offset32+(off), (val))
#define hwptr_nspeekb(ptr, off) _farnspeekb((ptr).offset32+(off))
#define hwptr_nspeekw(ptr, off) _farnspeekw((ptr).offset32+(off))
#define hwptr_nspeekl(ptr, off) _farnspeekl((ptr).offset32+(off))
#else
#define hwptr_pokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
#define hwptr_pokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
#define hwptr_pokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
#define hwptr_peekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
#define hwptr_peekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
#define hwptr_peekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
#define hwptr_select(ptr)
#define hwptr_unselect(ptr)
#define hwptr_nspokeb(ptr, off, val) *((volatile unsigned char *)((ptr).offset32+(off))) = (val)
#define hwptr_nspokew(ptr, off, val) *((volatile unsigned short *)((ptr).offset32+(off))) = (val)
#define hwptr_nspokel(ptr, off, val) *((volatile unsigned long *)((ptr).offset32+(off))) = (val)
#define hwptr_nspeekb(ptr, off) (*((volatile unsigned char *)((ptr).offset32+(off))))
#define hwptr_nspeekw(ptr, off) (*((volatile unsigned short *)((ptr).offset32+(off))))
#define hwptr_nspeekl(ptr, off) (*((volatile unsigned long *)((ptr).offset32+(off))))
#endif
/* helpers for accessing the Matrox registers */
#define mga_select() hwptr_select(mgaptr.io_mem_map[0])
#define mga_inb(addr) hwptr_nspeekb(mgaptr.io_mem_map[0], addr)
#define mga_inw(addr) hwptr_nspeekw(mgaptr.io_mem_map[0], addr)
#define mga_inl(addr) hwptr_nspeekl(mgaptr.io_mem_map[0], addr)
#define mga_outb(addr, val) hwptr_nspokeb(mgaptr.io_mem_map[0], addr, val)
#define mga_outw(addr, val) hwptr_nspokew(mgaptr.io_mem_map[0], addr, val)
#define mga_outl(addr, val) hwptr_nspokel(mgaptr.io_mem_map[0], addr, val)
typedef struct MGA_HWPTR {
__dpmi_paddr io_mem_map[4], linear_map;
} MGA_HWPTR;
extern MGA_HWPTR mgaptr;
void mga_hw_fini (void);
int mga_hw_init (unsigned long *vram, int *interleave, char *name);
#endif
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