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author | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
commit | f4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch) | |
tree | 2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/programs/Xserver/hw/xfree86/os-support/shared/bios_devmem.c | |
parent | a840692edc9c6d19cd7c057f68e39c7d95eb767d (diff) | |
download | nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.gz nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.bz2 nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.zip |
Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:
Imported nx-X11-3.1.0-1.tar.gz
into Git repository
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/shared/bios_devmem.c')
-rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/shared/bios_devmem.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/shared/bios_devmem.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/shared/bios_devmem.c new file mode 100644 index 000000000..8bd6d3f3e --- /dev/null +++ b/nx-X11/programs/Xserver/hw/xfree86/os-support/shared/bios_devmem.c @@ -0,0 +1,77 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/shared/bios_devmem.c,v 3.5 1998/09/13 00:51:32 dawes Exp $ */ +/* + * 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 name of David Wexelblat not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. David Wexelblat makes no representations + * about the suitability of this software for any purpose. It is provided + * "as is" without express or implied warranty. + * + * DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL 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: bios_devmem.c /main/5 1996/10/19 18:07:41 kaleb $ */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <X11/X.h> +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include <string.h> + +/* + * Read BIOS via /dev/mem. + */ + +#ifndef DEV_MEM +# define DEV_MEM "/dev/mem" +#endif + +int +xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, + int Len) +{ + int fd; + +#ifdef __ia64__ + if ((fd = open(DEV_MEM, O_RDONLY | O_SYNC)) < 0) +#else + if ((fd = open(DEV_MEM, O_RDONLY)) < 0) +#endif + { + xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n", + DEV_MEM, strerror(errno)); + return(-1); + } + + if (lseek(fd, (Base+Offset), SEEK_SET) < 0) + { + xf86Msg(X_WARNING, "xf86ReadBIOS: %s seek failed (%s)\n", + DEV_MEM, strerror(errno)); + close(fd); + return(-1); + } + if (read(fd, Buf, Len) != Len) + { + xf86Msg(X_WARNING, "xf86ReadBIOS: %s read failed (%s)\n", + DEV_MEM, strerror(errno)); + close(fd); + return(-1); + } + close(fd); + return(Len); +} |