| 1 | /* |
| 2 | * Copyright 1997, 1998 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 | |
| 24 | #ifdef HAVE_XORG_CONFIG_H |
| 25 | #include <xorg-config.h> |
| 26 | #endif |
| 27 | |
| 28 | #include <mach.h> |
| 29 | #include <device/device.h> |
| 30 | #include <mach/machine/mach_i386.h> |
| 31 | #include <hurd.h> |
| 32 | |
| 33 | #include <X11/X.h> |
| 34 | #include "input.h" |
| 35 | #include "scrnintstr.h" |
| 36 | |
| 37 | #include "xf86.h" |
| 38 | #include "xf86Priv.h" |
| 39 | #include "xf86_OSlib.h" |
| 40 | #include "xf86OSpriv.h" |
| 41 | |
| 42 | /************************************************************************** |
| 43 | * Video Memory Mapping section |
| 44 | ***************************************************************************/ |
| 45 | static pointer |
| 46 | mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int Flags) |
| 47 | { |
| 48 | mach_port_t device, mem_dev; |
| 49 | memory_object_t mem_obj; |
| 50 | kern_return_t err; |
| 51 | vm_address_t addr = (vm_address_t) 0; |
| 52 | |
| 53 | err = get_privileged_ports(NULL, &device); |
| 54 | if (err) { |
| 55 | errno = err; |
| 56 | FatalError("xf86MapVidMem() can't get_privileged_ports. (%s)\n", |
| 57 | strerror(errno)); |
| 58 | } |
| 59 | err = device_open(device, D_READ | D_WRITE, "mem", &mem_dev); |
| 60 | mach_port_deallocate(mach_task_self(), device); |
| 61 | if (err) { |
| 62 | errno = err; |
| 63 | FatalError("xf86MapVidMem() can't device_open. (%s)\n", |
| 64 | strerror(errno)); |
| 65 | } |
| 66 | |
| 67 | err = |
| 68 | device_map(mem_dev, VM_PROT_READ | VM_PROT_WRITE, Base, Size, &mem_obj, |
| 69 | 0); |
| 70 | if (err) { |
| 71 | errno = err; |
| 72 | FatalError("xf86MapVidMem() can't device_map. (%s)\n", strerror(errno)); |
| 73 | } |
| 74 | err = vm_map(mach_task_self(), &addr, Size, 0, /* mask */ |
| 75 | TRUE, /* anywhere */ |
| 76 | mem_obj, (vm_offset_t) Base, FALSE, /* copy on write */ |
| 77 | VM_PROT_READ | VM_PROT_WRITE, |
| 78 | VM_PROT_READ | VM_PROT_WRITE, VM_INHERIT_SHARE); |
| 79 | mach_port_deallocate(mach_task_self(), mem_obj); |
| 80 | if (err) { |
| 81 | errno = err; |
| 82 | FatalError("xf86MapVidMem() can't vm_map.(mem_obj) (%s)\n", |
| 83 | strerror(errno)); |
| 84 | } |
| 85 | mach_port_deallocate(mach_task_self(), mem_dev); |
| 86 | if (err) { |
| 87 | errno = err; |
| 88 | FatalError |
| 89 | ("xf86MapVidMem() can't mach_port_deallocate.(mem_dev) (%s)\n", |
| 90 | strerror(errno)); |
| 91 | } |
| 92 | return (pointer) addr; |
| 93 | } |
| 94 | |
| 95 | static void |
| 96 | unmapVidMem(int ScreenNum, pointer Base, unsigned long Size) |
| 97 | { |
| 98 | kern_return_t err = vm_deallocate(mach_task_self(), (int) Base, Size); |
| 99 | |
| 100 | if (err) { |
| 101 | errno = err; |
| 102 | ErrorF("xf86UnMapVidMem: can't dealloc framebuffer space (%s)\n", |
| 103 | strerror(errno)); |
| 104 | } |
| 105 | return; |
| 106 | } |
| 107 | |
| 108 | /************************************************************************** |
| 109 | * I/O Permissions section |
| 110 | ***************************************************************************/ |
| 111 | |
| 112 | /* |
| 113 | * Due to conflicts with "compiler.h", don't rely on <sys/io.h> to declare |
| 114 | * this. |
| 115 | */ |
| 116 | extern int ioperm(unsigned long __from, unsigned long __num, int __turn_on); |
| 117 | |
| 118 | Bool |
| 119 | xf86EnableIO() |
| 120 | { |
| 121 | if (ioperm(0, 0x10000, 1)) { |
| 122 | FatalError("xf86EnableIO: ioperm() failed (%s)\n", strerror(errno)); |
| 123 | return FALSE; |
| 124 | } |
| 125 | #if 0 |
| 126 | /* |
| 127 | * Trapping disabled for now, as some VBIOSes (mga-g450 notably) use these |
| 128 | * ports, and the int10 wrapper is not emulating them. (Note that it's |
| 129 | * effectively what happens in the Linux variant too, as iopl() is used |
| 130 | * there, making the ioperm() meaningless.) |
| 131 | * |
| 132 | * Reenable this when int10 gets fixed. */ |
| 133 | ioperm(0x40, 4, 0); /* trap access to the timer chip */ |
| 134 | ioperm(0x60, 4, 0); /* trap access to the keyboard controller */ |
| 135 | #endif |
| 136 | return TRUE; |
| 137 | } |
| 138 | |
| 139 | void |
| 140 | xf86DisableIO() |
| 141 | { |
| 142 | ioperm(0, 0x10000, 0); |
| 143 | return; |
| 144 | } |
| 145 | |
| 146 | void |
| 147 | xf86OSInitVidMem(VidMemInfoPtr pVidMem) |
| 148 | { |
| 149 | pVidMem->linearSupported = TRUE; |
| 150 | pVidMem->mapMem = mapVidMem; |
| 151 | pVidMem->unmapMem = unmapVidMem; |
| 152 | pVidMem->initialised = TRUE; |
| 153 | } |