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Diffstat (limited to 'hw/xfree86/os-support/bsd/ppc_video.c')
-rw-r--r--hw/xfree86/os-support/bsd/ppc_video.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/hw/xfree86/os-support/bsd/ppc_video.c b/hw/xfree86/os-support/bsd/ppc_video.c
new file mode 100644
index 000000000..4ec7045e8
--- /dev/null
+++ b/hw/xfree86/os-support/bsd/ppc_video.c
@@ -0,0 +1,130 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bsd/ppc_video.c,v 1.3 2002/11/09 17:28:08 herrb Exp $ */
+/*
+ * Copyright 1992 by Rich Murphey <Rich@Rice.edu>
+ * Copyright 1993 by David Wexelblat <dwex@goblin.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 names of Rich Murphey and David Wexelblat
+ * not be used in advertising or publicity pertaining to distribution of
+ * the software without specific, written prior permission. Rich Murphey and
+ * David Wexelblat make no representations about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ *
+ * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT 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.
+ *
+ */
+
+/* $XConsortium: bsd_video.c /main/10 1996/10/25 11:37:57 kaleb $ */
+
+#include "X.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+
+#include "xf86_OSlib.h"
+#include "xf86OSpriv.h"
+
+#include "bus/Pci.h"
+
+#ifndef MAP_FAILED
+#define MAP_FAILED ((caddr_t)-1)
+#endif
+
+
+/***************************************************************************/
+/* Video Memory Mapping section */
+/***************************************************************************/
+
+#define DEV_MEM "/dev/mem"
+
+static pointer ppcMapVidMem(int, unsigned long, unsigned long, int flags);
+static void ppcUnmapVidMem(int, pointer, unsigned long);
+
+void
+xf86OSInitVidMem(VidMemInfoPtr pVidMem)
+{
+ pVidMem->linearSupported = TRUE;
+ pVidMem->mapMem = ppcMapVidMem;
+ pVidMem->unmapMem = ppcUnmapVidMem;
+ pVidMem->initialised = TRUE;
+}
+
+
+volatile unsigned char *ioBase = MAP_FAILED;
+
+static pointer
+ppcMapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+{
+ int fd = xf86Info.screenFd;
+ pointer base;
+#ifdef DEBUG
+ xf86MsgVerb(X_INFO, 3, "mapVidMem %lx, %lx, fd = %d",
+ Base, Size, fd);
+#endif
+
+ base = mmap(0, Size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, Base);
+ if (base == MAP_FAILED)
+ FatalError("%s: could not mmap screen [s=%x,a=%x] (%s)\n",
+ "xf86MapVidMem", Size, Base, strerror(errno));
+
+ return base;
+}
+
+static void
+ppcUnmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
+{
+ munmap(Base, Size);
+}
+
+int
+xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
+ int Len)
+{
+ int rv;
+ static int kmem = -1;
+
+ if (kmem == -1) {
+ kmem = open("/dev/xf86", 2);
+ if (kmem == -1) {
+ FatalError("xf86ReadBIOS: open /dev/xf86\n");
+ }
+ }
+
+#ifdef DEBUG
+ xf86MsgVerb(X_INFO, 3, "xf86ReadBIOS() %lx %lx, %x\n",
+ Base, Offset, Len);
+#endif
+
+
+ lseek(kmem, Base + Offset, 0);
+ rv = read(kmem, Buf, Len);
+
+ return rv;
+}
+
+/***************************************************************************/
+/* Interrupt Handling section */
+/***************************************************************************/
+
+Bool
+xf86DisableInterrupts()
+{
+
+ return(TRUE);
+}
+
+void
+xf86EnableInterrupts()
+{
+
+ return;
+}