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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atiio.h,v 1.14 2003/01/01 19:16:32 tsi Exp $ */
/*
* Copyright 1997 through 2003 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
*
* 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 Marc Aurele La France not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Marc Aurele La France makes no representations
* about the suitability of this software for any purpose. It is provided
* "as-is" without express or implied warranty.
*
* MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
* EVENT SHALL MARC AURELE LA FRANCE 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.
*/
#ifndef ___ATIIO_H___
#if !defined(___ATI_H___) && defined(XFree86Module)
# error missing #include "ati.h" before #include "atiio.h"
# undef XFree86Module
#endif
#define ___ATIIO_H___ 1
#include "atiregs.h"
#include "compiler.h"
/* I/O decoding definitions */
typedef enum
{
SPARSE_IO,
BLOCK_IO
} ATIIODecodingType;
#ifndef AVOID_CPIO
/* Wait until "n" queue entries are free */
#define ibm8514WaitQueue(_n) \
{ \
while (inw(GP_STAT) & (0x0100U >> (_n))); \
}
#define ATIWaitQueue(_n) \
{ \
while (inw(EXT_FIFO_STATUS) & (0x010000U >> (_n))); \
}
/* Wait until GP is idle and queue is empty */
#define WaitIdleEmpty() \
{ \
while (inw(GP_STAT) & (GPBUSY | 1)); \
}
#define ProbeWaitIdleEmpty() \
{ \
int _i; \
CARD16 _value; \
for (_i = 0; _i < 100000; _i++) \
{ \
_value = inw(GP_STAT); \
if (_value == (CARD16)(-1)) \
break; \
if (!(_value & (GPBUSY | 1))) \
break; \
} \
}
/* Wait until GP has data available */
#define WaitDataReady() \
{ \
while (!(inw(GP_STAT) & DATARDY)); \
}
#endif /* AVOID_CPIO */
#endif /* ___ATIIO_H___ */
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