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/*
* 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,int Flags, unsigned long Base, unsigned long Size)
{
mach_port_t device,iopl_dev;
memory_object_t iopl_mem;
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,"iopl",&iopl_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(iopl_dev,VM_PROT_READ|VM_PROT_WRITE, Base , Size ,&iopl_mem,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 */
iopl_mem,
(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(),iopl_mem);
if( err )
{
errno = err;
FatalError("xf86MapVidMem() can't vm_map.(iopl_mem) (%s)\n",strerror(errno));
}
mach_port_deallocate(mach_task_self(),iopl_dev);
if( err )
{
errno = err;
FatalError("xf86MapVidMem() can't mach_port_deallocate.(iopl_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;
}
ioperm(0x40,4,0); /* trap access to the timer chip */
ioperm(0x60,4,0); /* trap access to the keyboard controller */
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;
}
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