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Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c')
-rw-r--r--nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c369
1 files changed, 0 insertions, 369 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c
deleted file mode 100644
index e8c26dada..000000000
--- a/nx-X11/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/sysv/sysv_video.c,v 3.20tsi Exp $ */
-/*
- * 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 and David Wexelblat
- * not be used in advertising or publicity pertaining to distribution of
- * the software without specific, written prior permission. Thomas Roell and
- * David Wexelblat makes no representations about the suitability of this
- * software for any purpose. It is provided "as is" without express or
- * implied warranty.
- *
- * THOMAS ROELL AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO
- * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL THOMAS ROELL 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: sysv_video.c /main/8 1996/10/25 11:38:09 kaleb $ */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <X11/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
-
-#ifndef SI86IOPL
-#define SET_IOPL() sysi86(SI86V86,V86SC_IOPL,PS_IOPL)
-#define RESET_IOPL() sysi86(SI86V86,V86SC_IOPL,0)
-#else
-#define SET_IOPL() sysi86(SI86IOPL,3)
-#define RESET_IOPL() sysi86(SI86IOPL,0)
-#endif
-
-/***************************************************************************/
-/* Video Memory Mapping section */
-/***************************************************************************/
-
-/*
- * XXX Support for SVR3 will need to be reworked if needed. In particular
- * the Region parameter is no longer passed, and will need to be dealt
- * with internally if required.
- * OK, i'll rework that thing ... (clean it up a lot)
- * SVR3 Support only with SVR3_MMAPDRV (mr)
- *
- */
-
-#ifdef HAS_SVR3_MMAPDRV
-#ifndef MMAP_DEBUG
-#define MMAP_DEBUG 3
-#endif
-
-struct kd_memloc MapDSC;
-int mmapFd = -2;
-
-static int
-mmapStat(pointer Base, unsigned long Size) {
-
- int nmmreg,i=0,region=-1;
- mmapinfo_t *ibuf;
-
- nmmreg = ioctl(mmapFd, GETNMMREG);
-
- if(nmmreg <= 0)
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "\nNo physical memory mapped currently.\n\n");
- else {
- if((ibuf = (mmapinfo_t *)malloc(nmmreg*sizeof(mmapinfo_t))) == NULL)
- xf86Msg(X_WARNING,
- "Couldn't allocate memory 4 mmapinfo_t\n");
- else {
- if(ioctl(mmapFd, GETMMREG, ibuf) != -1)
- {
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "# mmapStat: [Size=%x,Base=%x]\n", Size, Base);
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "# Physical Address Size Reference Count\n");
- for(i = 0; i < nmmreg; i++) {
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "%-4d 0x%08X %5dk %5d ",
- i, ibuf[i].physaddr, ibuf[i].length/1024, ibuf[i].refcnt);
- if (ibuf[i].physaddr == Base || ibuf[i].length == Size ) {
- xf86MsgVerb(X_INFO, MMAP_DEBUG,"MATCH !!!");
- if (region==-1) region=i;
- }
- xf86ErrorFVerb(MMAP_DEBUG, "\n");
- }
- xf86ErrorFVerb(MMAP_DEBUG, "\n");
- }
- free(ibuf);
- }
- }
- if (region == -1 && nmmreg > 0) region=region * i;
- return(region);
-}
-#endif
-
-
-static Bool
-linearVidMem()
-{
-#ifdef SVR4
- return TRUE;
-#elif defined(HAS_SVR3_MMAPDRV)
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "# xf86LinearVidMem: MMAP 2.2.2 called\n");
-
- if(mmapFd >= 0) return TRUE;
-
- if ((mmapFd = open("/dev/mmap", O_RDWR)) != -1)
- {
- if(ioctl(mmapFd, GETVERSION) < 0x0222) {
- xf86Msg(X_WARNING,
- "xf86LinearVidMem: MMAP 2.2.2 or above required\n");
- xf86ErrorF("\tlinear memory access disabled\n");
- return FALSE;
- }
- return TRUE;
- }
- xf86Msg(X_WARNING, "xf86LinearVidMem: failed to open /dev/mmap (%s)\n",
- strerror(errno));
- xf86ErrorF("\tlinear memory access disabled\n");
- return FALSE;
-#endif
-}
-
-static pointer
-mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
-{
- pointer base;
- int fd;
-
-#if defined(SVR4)
- 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));
- }
-#else /* SVR4 */
-#ifdef HAS_SVR3_MMAPDRV
-
- xf86MsgVerb(X_INFO, MMAP_DEBUG, "# xf86MapVidMem: MMAP 2.2.2 called\n");
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "MMAP_VERSION: 0x%x\n",ioctl(mmapFd, GETVERSION));
- if (ioctl(mmapFd, GETVERSION) == -1)
- {
- xf86LinearVidMem();
- }
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "MMAP_VERSION: 0x%x\n",ioctl(mmapFd, GETVERSION));
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "xf86MapVidMem: Screen: %d\n", ScreenNum);
- mmapStat(Base,Size);
- /* To force the MMAP driver to provide the address */
- base = (pointer)0;
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "xf86MapVidMem: [s=%x,a=%x]\n", Size, Base);
- MapDSC.vaddr = (char *)base;
- MapDSC.physaddr = (char *)Base;
- MapDSC.length = Size;
- MapDSC.ioflg = 1;
- if(mmapFd >= 0)
- {
- if((base = (pointer)ioctl(mmapFd, MAP, &MapDSC)) == (pointer)-1)
- {
- FatalError("%s: Could not mmap framebuffer [s=%x,a=%x] (%s)\n",
- "xf86MapVidMem", Size, Base, strerror(errno));
- /* NOTREACHED */
- }
-
- /* Next time we want the same address! */
- MapDSC.vaddr = (char *)base;
- }
-
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "MapDSC.vaddr : 0x%x\n", MapDSC.vaddr);
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "MapDSC.physaddr: 0x%x\n", MapDSC.physaddr);
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "MapDSC.length : %d\n", MapDSC.length);
- mmapStat(Base,Size);
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "xf86MapVidMem: [s=%x,a=%x,b=%x]\n", Size, Base, base);
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "xf86MapVidMem: SUCCEED Mapping FrameBuffer \n");
-#endif /* HAS_SVR3_MMAPDRV */
-#endif /* SVR4 */
- return(base);
-}
-
-/* ARGSUSED */
-static void
-unmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
-{
-#if defined (SVR4)
- munmap(Base, Size);
-#else /* SVR4 */
-#ifdef HAS_SVR3_MMAPDRV
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "# xf86UnMapVidMem: UNMapping FrameBuffer\n");
- mmapStat(Base,Size);
- ioctl(mmapFd, UNMAPRM , Base);
- mmapStat(Base,Size);
- xf86MsgVerb(X_INFO, MMAP_DEBUG,
- "# xf86UnMapVidMem: Screen: %d [v=%x]\n", ScreenNum, Base);
-#endif /* HAS_SVR3_MMAPDRV */
-#endif /* SVR4 */
- return;
-}
-
-#if defined(SVR4) && defined(i386) && !defined(sun)
-/*
- * 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.
- */
-
-/*
- * XXX Should get this the correct way (see os/xalloc.c), but since this is
- * for one platform I'll be lazy.
- */
-#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;
-}
-#endif
-
-void
-xf86OSInitVidMem(VidMemInfoPtr pVidMem)
-{
- pVidMem->linearSupported = linearVidMem();
- pVidMem->mapMem = mapVidMem;
- pVidMem->unmapMem = unmapVidMem;
-#if defined(SVR4) && defined(i386) && !defined(sun)
- pVidMem->readSideEffects = readSideEffects;
-#endif
- pVidMem->initialised = TRUE;
-}
-
-/***************************************************************************/
-/* I/O Permissions section */
-/***************************************************************************/
-
-static Bool ExtendedEnabled = FALSE;
-static Bool InitDone = FALSE;
-
-Bool
-xf86EnableIO()
-{
- int i;
-
- if (ExtendedEnabled)
- return TRUE;
-
- if (SET_IOPL() < 0)
- {
- xf86Msg(X_WARNING,
- "xf86EnableIO: Failed to set IOPL for extended I/O\n");
- return FALSE;
- }
- ExtendedEnabled = TRUE;
-
- return TRUE;
-}
-
-void
-xf86DisableIO()
-{
- if (!ExtendedEnabled)
- return;
-
- RESET_IOPL();
- ExtendedEnabled = FALSE;
-
- return;
-}
-
-/***************************************************************************/
-/* Interrupt Handling section */
-/***************************************************************************/
-
-Bool
-xf86DisableInterrupts()
-{
- if (!ExtendedEnabled)
- {
- if (SET_IOPL() < 0)
- {
- return(FALSE);
- }
- }
-
-#ifdef __GNUC__
- __asm__ __volatile__("cli");
-#else
- asm("cli");
-#endif /* __GNUC__ */
-
- if (!ExtendedEnabled)
- {
- RESET_IOPL();
- }
- return(TRUE);
-}
-
-void
-xf86EnableInterrupts()
-{
- if (!ExtendedEnabled)
- {
- if (SET_IOPL() < 0)
- {
- return;
- }
- }
-
-#ifdef __GNUC__
- __asm__ __volatile__("sti");
-#else
- asm("sti");
-#endif /* __GNUC__ */
-
- if (!ExtendedEnabled)
- {
- RESET_IOPL();
- }
- return;
-}
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