summaryrefslogtreecommitdiff
path: root/hw/xfree86/os-support/solaris/sun_vid.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/xfree86/os-support/solaris/sun_vid.c')
-rw-r--r--hw/xfree86/os-support/solaris/sun_vid.c258
1 files changed, 258 insertions, 0 deletions
diff --git a/hw/xfree86/os-support/solaris/sun_vid.c b/hw/xfree86/os-support/solaris/sun_vid.c
new file mode 100644
index 0000000..f99bac5
--- /dev/null
+++ b/hw/xfree86/os-support/solaris/sun_vid.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
+ * Copyright 1993 by David Wexelblat <dwex@goblin.org>
+ * Copyright 1999 by David Holland <davidh@iquest.net>
+ *
+ * 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 the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDERS 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.
+ *
+ */
+/* Copyright (c) 2008, Oracle and/or its affiliates. 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 (including the next
+ * paragraph) 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <sys/types.h> /* get __x86 definition if not set by compiler */
+
+#if defined(__i386__) || defined(__i386) || defined(__x86)
+# define _NEED_SYSI86
+#endif
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+#include "xf86OSpriv.h"
+#include <sys/mman.h>
+
+/***************************************************************************/
+/* Video Memory Mapping section */
+/***************************************************************************/
+
+static char *apertureDevName = NULL;
+static int apertureDevFD_ro = -1;
+static int apertureDevFD_rw = -1;
+
+static Bool
+solOpenAperture(void)
+{
+ if (apertureDevName == NULL)
+ {
+ apertureDevName = "/dev/xsvc";
+ if ((apertureDevFD_rw = open(apertureDevName, O_RDWR)) < 0)
+ {
+ xf86MsgVerb(X_WARNING, 0,
+ "solOpenAperture: failed to open %s (%s)\n",
+ apertureDevName, strerror(errno));
+ apertureDevName = "/dev/fbs/aperture";
+ apertureDevFD_rw = open(apertureDevName, O_RDWR);
+ }
+ apertureDevFD_ro = open(apertureDevName, O_RDONLY);
+
+ if ((apertureDevFD_rw < 0) || (apertureDevFD_ro < 0))
+ {
+ xf86MsgVerb(X_WARNING, 0,
+ "solOpenAperture: failed to open %s (%s)\n",
+ apertureDevName, strerror(errno));
+ xf86MsgVerb(X_WARNING, 0,
+ "solOpenAperture: either /dev/fbs/aperture"
+ " or /dev/xsvc required\n");
+
+ apertureDevName = NULL;
+
+ if (apertureDevFD_rw >= 0)
+ {
+ close(apertureDevFD_rw);
+ }
+ apertureDevFD_rw = -1;
+
+ if (apertureDevFD_ro >= 0)
+ {
+ close(apertureDevFD_ro);
+ }
+ apertureDevFD_ro = -1;
+
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+static pointer
+solMapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int Flags)
+{
+ pointer base;
+ int fd;
+ int prot;
+
+ if (Flags & VIDMEM_READONLY)
+ {
+ fd = apertureDevFD_ro;
+ prot = PROT_READ;
+ }
+ else
+ {
+ fd = apertureDevFD_rw;
+ prot = PROT_READ | PROT_WRITE;
+ }
+
+ if (fd < 0)
+ {
+ xf86DrvMsg(ScreenNum, X_ERROR,
+ "solMapVidMem: failed to open %s (%s)\n",
+ apertureDevName, strerror(errno));
+ return NULL;
+ }
+
+ base = mmap(NULL, Size, prot, MAP_SHARED, fd, (off_t)Base);
+
+ if (base == MAP_FAILED) {
+ xf86DrvMsg(ScreenNum, X_ERROR,
+ "solMapVidMem: failed to mmap %s (0x%08lx,0x%lx) (%s)\n",
+ apertureDevName, Base, Size, strerror(errno));
+ return NULL;
+ }
+
+ return base;
+}
+
+/* ARGSUSED */
+static void
+solUnMapVidMem(int ScreenNum, pointer Base, unsigned long Size)
+{
+ if (munmap(Base, Size) != 0) {
+ xf86DrvMsgVerb(ScreenNum, X_WARNING, 0,
+ "solUnMapVidMem: failed to unmap %s"
+ " (0x%p,0x%lx) (%s)\n",
+ apertureDevName, Base, Size,
+ strerror(errno));
+ }
+}
+
+_X_HIDDEN void
+xf86OSInitVidMem(VidMemInfoPtr pVidMem)
+{
+ pVidMem->linearSupported = solOpenAperture();
+ if (pVidMem->linearSupported) {
+ pVidMem->mapMem = solMapVidMem;
+ pVidMem->unmapMem = solUnMapVidMem;
+ } else {
+ xf86MsgVerb(X_WARNING, 0,
+ "xf86OSInitVidMem: linear memory access disabled\n");
+ }
+ pVidMem->initialised = TRUE;
+}
+
+/*
+ * Read BIOS via mmap()ing physical memory.
+ */
+int
+xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
+ int Len)
+{
+ unsigned char *ptr;
+ int psize;
+ int mlen;
+
+ psize = getpagesize();
+ Offset += Base & (psize - 1);
+ Base &= ~(psize - 1);
+ mlen = (Offset + Len + psize - 1) & ~(psize - 1);
+
+ if (solOpenAperture() == FALSE)
+ {
+ xf86Msg(X_WARNING,
+ "xf86ReadBIOS: Failed to open aperture to read BIOS\n");
+ return -1;
+ }
+
+ ptr = (unsigned char *)mmap(NULL, mlen, PROT_READ,
+ MAP_SHARED, apertureDevFD_ro, (off_t)Base);
+ if (ptr == MAP_FAILED)
+ {
+ xf86Msg(X_WARNING, "xf86ReadBIOS: %s mmap failed [0x%08lx, 0x%04x]\n",
+ apertureDevName, Base, mlen);
+ return -1;
+ }
+
+ (void)memcpy(Buf, (void *)(ptr + Offset), Len);
+ if (munmap((caddr_t)ptr, mlen) != 0) {
+ xf86MsgVerb(X_WARNING, 0,
+ "xf86ReadBIOS: failed to unmap %s (0x%p,0x%x) (%s)\n",
+ apertureDevName, ptr, mlen, strerror(errno));
+ }
+
+ return Len;
+}
+
+
+/***************************************************************************/
+/* I/O Permissions section */
+/***************************************************************************/
+
+#if defined(__i386__) || defined(__i386) || defined(__x86)
+static Bool ExtendedEnabled = FALSE;
+#endif
+
+Bool
+xf86EnableIO(void)
+{
+#if defined(__i386__) || defined(__i386) || defined(__x86)
+ if (ExtendedEnabled)
+ return TRUE;
+
+ if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) < 0) {
+ xf86Msg(X_WARNING, "xf86EnableIOPorts: Failed to set IOPL for I/O\n");
+ return FALSE;
+ }
+ ExtendedEnabled = TRUE;
+#endif /* i386 */
+ return TRUE;
+}
+
+void
+xf86DisableIO(void)
+{
+#if defined(__i386__) || defined(__i386) || defined(__x86)
+ if(!ExtendedEnabled)
+ return;
+
+ sysi86(SI86V86, V86SC_IOPL, 0);
+
+ ExtendedEnabled = FALSE;
+#endif /* i386 */
+}
contact: Jan Huwald // Impressum