1 files changed, 113 insertions, 0 deletions
diff --git a/src/mesa/drivers/dos/mga/mga_hw.h b/src/mesa/drivers/dos/mga/mga_hw.h
new file mode 100644
index 0000000000..246ed9c6ad
--- /dev/null
+++ b/src/mesa/drivers/dos/mga/mga_hw.h
@@ -0,0 +1,113 @@
+/*
+ * 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 5.0  --  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