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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/hw/xfree86/os-support/usl/usl_video.c
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Checked in the following released items:
xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/usl/usl_video.c')
-rw-r--r--xorg-server/hw/xfree86/os-support/usl/usl_video.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/usl/usl_video.c b/xorg-server/hw/xfree86/os-support/usl/usl_video.c
new file mode 100644
index 000000000..41abd2259
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/usl/usl_video.c
@@ -0,0 +1,109 @@
+/*
+ * Copyrught 2005 Kean Johnston <jkj@sco.com>
+ * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
+ * 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 Thomas Roell, David Dawes
+ * and Kean Johnston not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior permission.
+ * Thomas Roell, David Dawes and Kean Johnston make no representations
+ * about the suitability of this software for any purpose. It is provided
+ * "as is" without express or implied warranty.
+ *
+ * THOMAS ROELL, DAVID DAWES AND KEAN JOHNSTON DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL THOMAS ROELLm DAVID WEXELBLAT
+ * OR KEAN JOHNSTON 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.
+ *
+ */
+
+#include "X.h"
+
+#define _NEED_SYSI86
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+#include "xf86OSpriv.h"
+
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
+
+static Bool
+linearVidMem(void)
+{
+ return TRUE;
+}
+
+static pointer
+mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+{
+ pointer base;
+ int fd;
+
+ fd = open(DEV_MEM, (flags & VIDMEM_READONLY) ? O_RDONLY : O_RDWR);
+ if (fd < 0) {
+ FatalError("xf86MapVidMem: failed to open %s (%s)\n",
+ DEV_MEM, strerror(errno));
+ }
+ base = mmap((caddr_t)0, Size, (flags & VIDMEM_READONLY) ?
+ PROT_READ : (PROT_READ | PROT_WRITE),
+ MAP_SHARED, fd, (off_t)Base);
+ close(fd);
+
+ if (base == MAP_FAILED) {
+ FatalError("%s: Could not mmap framebuffer [s=%x,a=%x] (%s)\n",
+ "xf86MapVidMem", Size, Base, strerror(errno));
+ }
+ return(base);
+}
+
+/* ARGSUSED */
+static void
+unmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
+{
+ munmap(Base, Size);
+}
+
+/*
+ * For some SVR4 versions, a 32-bit read is done for the first location
+ * in each page when the page is first mapped. If this is done while
+ * memory access is enabled for regions that have read side-effects,
+ * this can cause unexpected results, including lockups on some hardware.
+ * This function is called to make sure each page is mapped while it is
+ * safe to do so.
+ */
+
+#define X_PAGE_SIZE 4096
+
+static void
+readSideEffects(int ScreenNum, pointer Base, unsigned long Size)
+{
+ unsigned long base, end, addr;
+ CARD32 val;
+
+ base = (unsigned long)Base;
+ end = base + Size;
+
+ for (addr = base; addr < end; addr += X_PAGE_SIZE)
+ val = *(volatile CARD32 *)addr;
+}
+
+void
+xf86OSInitVidMem(VidMemInfoPtr pVidMem)
+{
+ pVidMem->linearSupported = linearVidMem();
+ pVidMem->mapMem = mapVidMem;
+ pVidMem->unmapMem = unmapVidMem;
+ pVidMem->readSideEffects = readSideEffects;
+ pVidMem->initialised = TRUE;
+}
+