diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/shared/bios_mmap.c')
-rw-r--r-- | xorg-server/hw/xfree86/os-support/shared/bios_mmap.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/xorg-server/hw/xfree86/os-support/shared/bios_mmap.c b/xorg-server/hw/xfree86/os-support/shared/bios_mmap.c deleted file mode 100644 index e000dc9c8..000000000 --- a/xorg-server/hw/xfree86/os-support/shared/bios_mmap.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * 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. - * - */ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <X11/X.h> - -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" - -/* - * Read BIOS via mmap()ing DEV_MEM - */ - -#ifndef __alpha__ -int -xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, - int Len) -{ - int fd; - unsigned char *ptr; - int psize; - int mlen; - - if ((fd = open(DEV_MEM, O_RDONLY)) < 0) { - xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n", - DEV_MEM, strerror(errno)); - return -1; - } - psize = getpagesize(); - Offset += Base & (psize - 1); - Base &= ~(psize - 1); - mlen = (Offset + Len + psize - 1) & ~(psize - 1); - ptr = (unsigned char *) mmap((caddr_t) 0, mlen, PROT_READ, - MAP_SHARED, fd, (off_t) Base); - if (ptr == MAP_FAILED) { - xf86Msg(X_WARNING, "xf86ReadBIOS: %s mmap failed (%s)\n", - DEV_MEM, strerror(errno)); - close(fd); - return -1; - } - DebugF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n", - Base, ptr[0] | (ptr[1] << 8)); - (void) memcpy(Buf, (void *) (ptr + Offset), Len); - (void) munmap((caddr_t) ptr, mlen); - (void) close(fd); - return Len; -} - -#else /* __alpha__ */ - - /* - * We trick "mmap" into mapping BUS memory for us via BUS_BASE, - * which is the KSEG address of the start of the DENSE memory - * area. - */ - - /* - * NOTE: there prolly ought to be more validity checks and all - * re: boundaries and sizes and such... - */ - -#ifdef linux - -extern unsigned long _bus_base(void); - -#define BUS_BASE _bus_base() - -#else - -extern u_int64_t dense_base(void); - -#define BUS_BASE dense_base() - -#endif - -int -xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, - int Len) -{ - caddr_t base; - int fd; - int psize; - int mlen; - - if ((fd = open(DEV_MEM, O_RDONLY)) < 0) { - xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n", - DEV_MEM, strerror(errno)); - return -1; - } - - psize = getpagesize(); - Offset += Base & (psize - 1); - Base &= ~(psize - 1); - mlen = (Offset + Len + psize - 1) & ~(psize - 1); - base = mmap((caddr_t) 0, mlen, PROT_READ, - MAP_SHARED, fd, (off_t) (Base + BUS_BASE)); - - if (base == MAP_FAILED) { - xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to mmap %s (%s)\n", - DEV_MEM, strerror(errno)); - return -1; - } - - xf86SlowBCopyFromBus((unsigned char *) (base + Offset), Buf, Len); - - munmap((caddr_t) base, mlen); - close(fd); - return Len; -} - -#endif /* __alpha__ */ |