84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atiio.h,v 1.14 2003/01/01 19:16:32 tsi Exp $ */
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/*
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* Copyright 1997 through 2003 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of Marc Aurele La France not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. Marc Aurele La France makes no representations
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* about the suitability of this software for any purpose. It is provided
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* "as-is" without express or implied warranty.
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*
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* MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
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* EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef ___ATIIO_H___
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#if !defined(___ATI_H___) && defined(XFree86Module)
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# error missing #include "ati.h" before #include "atiio.h"
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# undef XFree86Module
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#endif
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#define ___ATIIO_H___ 1
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#include "atiregs.h"
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#include "compiler.h"
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/* I/O decoding definitions */
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typedef enum
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{
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SPARSE_IO,
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BLOCK_IO
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} ATIIODecodingType;
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#ifndef AVOID_CPIO
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/* Wait until "n" queue entries are free */
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#define ibm8514WaitQueue(_n) \
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{ \
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while (inw(GP_STAT) & (0x0100U >> (_n))); \
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}
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#define ATIWaitQueue(_n) \
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{ \
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while (inw(EXT_FIFO_STATUS) & (0x010000U >> (_n))); \
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}
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/* Wait until GP is idle and queue is empty */
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#define WaitIdleEmpty() \
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{ \
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while (inw(GP_STAT) & (GPBUSY | 1)); \
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}
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#define ProbeWaitIdleEmpty() \
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{ \
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int _i; \
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CARD16 _value; \
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for (_i = 0; _i < 100000; _i++) \
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{ \
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_value = inw(GP_STAT); \
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if (_value == (CARD16)(-1)) \
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break; \
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if (!(_value & (GPBUSY | 1))) \
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break; \
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} \
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}
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/* Wait until GP has data available */
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#define WaitDataReady() \
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{ \
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while (!(inw(GP_STAT) & DATARDY)); \
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}
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#endif /* AVOID_CPIO */
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#endif /* ___ATIIO_H___ */
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