49f77fff14
Save in a few special cases, _X_EXPORT should not be used in C source files. Instead, it should be used in headers, and the proper C source include that header. Some special cases are symbols that need to be shared between modules, but not expected to be used by external drivers, and symbols that are accessible via LoaderSymbol/dlopen. This patch also adds conditionally some new sdk header files, depending on extensions enabled. These files were added to match pattern for other extensions/modules, that is, have the headers "deciding" symbol visibility in the sdk. These headers are: o Xext/panoramiXsrv.h, Xext/panoramiX.h o fbpict.h (unconditionally) o vidmodeproc.h o mioverlay.h (unconditionally, used only by xaa) o xfixes.h (unconditionally, symbols required by dri2) LoaderSymbol and similar functions now don't have different prototypes, in loaderProcs.h and xf86Module.h, so that both headers can be included, without the need of defining IN_LOADER. xf86NewInputDevice() device prototype readded to xf86Xinput.h, but not exported (and with a comment about it).
154 lines
4.0 KiB
C
154 lines
4.0 KiB
C
/*
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* Copyright 1992 by Rich Murphey <Rich@Rice.edu>
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* Copyright 1993 by David Wexelblat <dwex@goblin.org>
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the names of Rich Murphey and David Wexelblat
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* not be used in advertising or publicity pertaining to distribution of
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* the software without specific, written prior permission. Rich Murphey and
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* David Wexelblat make no representations about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*
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* RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
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* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT BE LIABLE FOR
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* ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86_OSlib.h"
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#include "xf86OSpriv.h"
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#include "bus/Pci.h"
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#ifndef MAP_FAILED
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#define MAP_FAILED ((caddr_t)-1)
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#endif
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/***************************************************************************/
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/* Video Memory Mapping section */
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/***************************************************************************/
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#ifndef __OpenBSD__
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#define DEV_MEM "/dev/mem"
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#else
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#define DEV_MEM "/dev/xf86"
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#endif
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static pointer ppcMapVidMem(int, unsigned long, unsigned long, int flags);
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static void ppcUnmapVidMem(int, pointer, unsigned long);
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Bool xf86EnableIO(void);
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void xf86DisableIO(void);
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void
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xf86OSInitVidMem(VidMemInfoPtr pVidMem)
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{
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pVidMem->linearSupported = TRUE;
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pVidMem->mapMem = ppcMapVidMem;
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pVidMem->unmapMem = ppcUnmapVidMem;
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pVidMem->initialised = TRUE;
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xf86EnableIO();
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}
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volatile unsigned char *ioBase = MAP_FAILED;
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static pointer
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ppcMapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
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{
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int fd = xf86Info.screenFd;
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pointer base;
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#ifdef DEBUG
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xf86MsgVerb(X_INFO, 3, "mapVidMem %lx, %lx, fd = %d",
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Base, Size, fd);
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#endif
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base = mmap(0, Size,
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(flags & VIDMEM_READONLY) ?
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PROT_READ : (PROT_READ | PROT_WRITE),
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MAP_SHARED, fd, Base);
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if (base == MAP_FAILED)
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FatalError("%s: could not mmap screen [s=%x,a=%x] (%s)",
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"xf86MapVidMem", Size, Base, strerror(errno));
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return base;
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}
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static void
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ppcUnmapVidMem(int ScreenNum, pointer Base, unsigned long Size)
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{
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munmap(Base, Size);
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}
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int
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xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
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int Len)
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{
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int rv;
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static int kmem = -1;
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if (kmem == -1) {
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kmem = open(DEV_MEM, 2);
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if (kmem == -1) {
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FatalError("xf86ReadBIOS: open %s", DEV_MEM);
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}
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}
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#ifdef DEBUG
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xf86MsgVerb(X_INFO, 3, "xf86ReadBIOS() %lx %lx, %x\n",
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Base, Offset, Len);
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#endif
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lseek(kmem, Base + Offset, 0);
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rv = read(kmem, Buf, Len);
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return rv;
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}
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Bool xf86EnableIO()
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{
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int fd = xf86Info.screenFd;
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xf86MsgVerb(X_WARNING, 3, "xf86EnableIO %d\n", fd);
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if (ioBase == MAP_FAILED)
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{
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ioBase=mmap(NULL, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, fd,
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0xf2000000);
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xf86MsgVerb(X_INFO, 3, "xf86EnableIO: %08x\n", ioBase);
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if (ioBase == MAP_FAILED) {
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xf86MsgVerb(X_WARNING, 3, "Can't map IO space!\n");
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return FALSE;
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}
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}
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return TRUE;
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}
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void xf86DisableIO()
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{
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if (ioBase != MAP_FAILED)
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{
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munmap(__UNVOLATILE(ioBase), 0x10000);
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ioBase = MAP_FAILED;
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}
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}
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