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/* $XConsortium: mach64util.c,v 1.1 94/12/14 15:04:34 kaleb Exp $ */
/* $XFree86: xc/programs/Xserver/hw/xfree86/accel/mach64/mach64util.c,v 3.0 1994/11/26 12:43:02 dawes Exp $ */
/*
* Copyright 1994 by Kevin E. Martin, Chapel Hill, North Carolina.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Kevin E. Martin not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Kevin E. Martin makes no
* representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*
* KEVIN E. MARTIN, RICKARD E. FAITH, AND TIAGO GONS DISCLAIM ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THE AUTHORS
* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
* DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Modified for the Mach64 by Kevin E. Martin (martin@cs.unc.edu)
*/
#include "X.h"
#include "input.h"
#include "regmach64.h"
extern unsigned int mach64MemRegOffset;
extern pointer mach64VideoMem;
__inline__ void regw(unsigned int regindex, unsigned long regdata)
{
unsigned long appaddr;
/* calculate aperture address */
appaddr = (unsigned long)mach64VideoMem + mach64MemRegOffset + regindex;
*(int *)appaddr = regdata;
}
__inline__ unsigned long regr(unsigned int regindex)
{
unsigned long appaddr;
/* calculate aperture address */
appaddr = (unsigned long)mach64VideoMem + mach64MemRegOffset + regindex;
return (*(int *)appaddr);
}
__inline__ void regwb(unsigned int regindex, unsigned char regdata)
{
unsigned long appaddr;
/* calculate aperture address */
appaddr = (unsigned long)mach64VideoMem + mach64MemRegOffset + regindex;
*(char *)appaddr = regdata;
}
__inline__ unsigned char regrb(unsigned int regindex)
{
unsigned long appaddr;
/* calculate aperture address */
appaddr = (unsigned long)mach64VideoMem + mach64MemRegOffset + regindex;
return (*(char *)appaddr);
}
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