diff options
Diffstat (limited to 'hw/xfree86/os-support/hurd/hurd_video.c')
| -rw-r--r-- | hw/xfree86/os-support/hurd/hurd_video.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/hw/xfree86/os-support/hurd/hurd_video.c b/hw/xfree86/os-support/hurd/hurd_video.c new file mode 100644 index 0000000..39f353b --- /dev/null +++ b/hw/xfree86/os-support/hurd/hurd_video.c @@ -0,0 +1,155 @@ +/* + * Copyright 1997, 1998 by UCHIYAMA Yasushi + * + * 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 UCHIYAMA Yasushi not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. UCHIYAMA Yasushi makes no representations + * about the suitability of this software for any purpose. It is provided + * "as is" without express or implied warranty. + * + * UCHIYAMA YASUSHI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL UCHIYAMA YASUSHI 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 <mach.h> +#include <device/device.h> +#include <mach/machine/mach_i386.h> + +#include <X11/X.h> +#include "input.h" +#include "scrnintstr.h" + +#include "xf86.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include "xf86OSpriv.h" + +/************************************************************************** + * Video Memory Mapping section + ***************************************************************************/ +static pointer +mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int Flags) +{ + mach_port_t device,mem_dev; + memory_object_t mem_obj; + kern_return_t err; + vm_address_t addr=(vm_address_t)0; + + err = get_privileged_ports (NULL, &device); + if( err ) + { + errno = err; + FatalError("xf86MapVidMem() can't get_privileged_ports. (%s)\n",strerror(errno)); + } + err = device_open(device,D_READ|D_WRITE,"mem",&mem_dev); + mach_port_deallocate (mach_task_self(), device); + if( err ) + { + errno = err; + FatalError("xf86MapVidMem() can't device_open. (%s)\n",strerror(errno)); + } + + err = device_map(mem_dev,VM_PROT_READ|VM_PROT_WRITE, Base , Size ,&mem_obj,0); + if( err ) + { + errno = err; + FatalError("xf86MapVidMem() can't device_map. (%s)\n",strerror(errno)); + } + err = vm_map(mach_task_self(), + &addr, + Size, + 0, /* mask */ + TRUE, /* anywhere */ + mem_obj, + (vm_offset_t)Base, + FALSE, /* copy on write */ + VM_PROT_READ|VM_PROT_WRITE, + VM_PROT_READ|VM_PROT_WRITE, + VM_INHERIT_SHARE); + mach_port_deallocate(mach_task_self(),mem_obj); + if( err ) + { + errno = err; + FatalError("xf86MapVidMem() can't vm_map.(mem_obj) (%s)\n",strerror(errno)); + } + mach_port_deallocate(mach_task_self(),mem_dev); + if( err ) + { + errno = err; + FatalError("xf86MapVidMem() can't mach_port_deallocate.(mem_dev) (%s)\n",strerror(errno)); + } + return (pointer)addr; +} + +static void +unmapVidMem(int ScreenNum,pointer Base,unsigned long Size) +{ + kern_return_t err = vm_deallocate(mach_task_self(), (int)Base, Size); + if( err ) + { + errno = err; + ErrorF("xf86UnMapVidMem: can't dealloc framebuffer space (%s)\n",strerror(errno)); + } + return; +} + +/************************************************************************** + * I/O Permissions section + ***************************************************************************/ + +/* + * Due to conflicts with "compiler.h", don't rely on <sys/io.h> to declare + * this. + */ +extern int ioperm(unsigned long __from, unsigned long __num, int __turn_on); + +Bool +xf86EnableIO() +{ + if (ioperm(0, 0x10000, 1)) { + FatalError("xf86EnableIO: ioperm() failed (%s)\n", strerror(errno)); + return FALSE; + } +#if 0 + /* + * Trapping disabled for now, as some VBIOSes (mga-g450 notably) use these + * ports, and the int10 wrapper is not emulating them. (Note that it's + * effectively what happens in the Linux variant too, as iopl() is used + * there, making the ioperm() meaningless.) + * + * Reenable this when int10 gets fixed. */ + ioperm(0x40,4,0); /* trap access to the timer chip */ + ioperm(0x60,4,0); /* trap access to the keyboard controller */ +#endif + return TRUE; +} + +void +xf86DisableIO() +{ + ioperm(0,0x10000,0); + return; +} + +void +xf86OSInitVidMem(VidMemInfoPtr pVidMem) +{ + pVidMem->linearSupported = TRUE; + pVidMem->mapMem = mapVidMem; + pVidMem->unmapMem = unmapVidMem; + pVidMem->initialised = TRUE; +} |