repositories / deb_xorg-server.git / blame
| Commit | Line | Data |
|---|---|---|
| a09e091a JB |
1 | /* |
| 2 | * Copyright 1997 by UCHIYAMA Yasushi | |
| 3 | * | |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its | |
| 5 | * documentation for any purpose is hereby granted without fee, provided that | |
| 6 | * the above copyright notice appear in all copies and that both that | |
| 7 | * copyright notice and this permission notice appear in supporting | |
| 8 | * documentation, and that the name of UCHIYAMA Yasushi not be used in | |
| 9 | * advertising or publicity pertaining to distribution of the software without | |
| 10 | * specific, written prior permission. UCHIYAMA Yasushi makes no representations | |
| 11 | * about the suitability of this software for any purpose. It is provided | |
| 12 | * "as is" without express or implied warranty. | |
| 13 | * | |
| 14 | * UCHIYAMA YASUSHI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
| 16 | * EVENT SHALL UCHIYAMA YASUSHI BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
| 20 | * PERFORMANCE OF THIS SOFTWARE. | |
| 21 | * | |
| 22 | */ | |
| 23 | #ifdef HAVE_XORG_CONFIG_H | |
| 24 | #include <xorg-config.h> | |
| 25 | #endif | |
| 26 | ||
| 27 | #include<mach.h> | |
| 28 | #include<device/device.h> | |
| 29 | #include<mach/machine/mach_i386.h> | |
| 30 | #include <hurd.h> | |
| 31 | ||
| 32 | #include <X11/X.h> | |
| 33 | ||
| 34 | #include "xf86.h" | |
| 35 | #include "xf86Priv.h" | |
| 36 | #include "xf86_OSlib.h" | |
| 37 | ||
| 38 | #define BIOS_SIZE 0x20000 | |
| 39 | ||
| 40 | int | |
| 41 | xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, | |
| 42 | int Len) | |
| 43 | { | |
| 44 | mach_port_t device, mem_dev; | |
| 45 | memory_object_t mem_obj; | |
| 46 | vm_address_t addr = (vm_address_t) 0; /* serach starting address */ | |
| 47 | kern_return_t err; | |
| 48 | ||
| 49 | err = get_privileged_ports(NULL, &device); | |
| 50 | if (err) { | |
| 51 | errno = err; | |
| 52 | FatalError("xf86ReadBIOS() can't get_privileged_ports. (%s)\n", | |
| 53 | strerror(errno)); | |
| 54 | } | |
| 55 | err = device_open(device, D_READ | D_WRITE, "mem", &mem_dev); | |
| 56 | mach_port_deallocate(mach_task_self(), device); | |
| 57 | if (err) { | |
| 58 | errno = err; | |
| 59 | FatalError("xf86ReadBIOS() can't device_open. (%s)\n", strerror(errno)); | |
| 60 | } | |
| 61 | err = | |
| 62 | device_map(mem_dev, VM_PROT_READ | VM_PROT_WRITE, Base, BIOS_SIZE, | |
| 63 | &mem_obj, 0); | |
| 64 | if (err) { | |
| 65 | errno = err; | |
| 66 | FatalError("xf86ReadBIOS() can't device_map. (%s)\n", strerror(errno)); | |
| 67 | } | |
| 68 | err = vm_map(mach_task_self(), | |
| 69 | &addr, | |
| 70 | BIOS_SIZE, | |
| 71 | 0, | |
| 72 | TRUE, | |
| 73 | mem_obj, | |
| 74 | Base, | |
| 75 | FALSE, | |
| 76 | VM_PROT_READ | VM_PROT_WRITE, | |
| 77 | VM_PROT_READ | VM_PROT_WRITE, VM_INHERIT_SHARE); | |
| 78 | mach_port_deallocate(mach_task_self(), mem_obj); | |
| 79 | if (err) { | |
| 80 | errno = err; | |
| 81 | FatalError("xf86ReadBIOS() can't vm_map. (%s)\n", strerror(errno)); | |
| 82 | } | |
| 83 | ||
| 84 | memcpy(Buf, (void *) ((int) addr + Offset), Len); | |
| 85 | ||
| 86 | err = vm_deallocate(mach_task_self(), addr, BIOS_SIZE); | |
| 87 | if (err) { | |
| 88 | errno = err; | |
| 89 | FatalError("xf86ReadBIOS() can't vm_deallocate. (%s)\n", | |
| 90 | strerror(errno)); | |
| 91 | } | |
| 92 | ||
| 93 | return Len; | |
| 94 | } |