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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___ */