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I/O enable/disable update for the Hurd

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This commit is contained in:
Samuel Thibault 2007-05-29 22:04:36 -04:00 committed by David Nusinow
parent 3c6f142848
commit 99eae8bea6
1 changed files with 12 additions and 32 deletions
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44
hw/xfree86/os-support/hurd/hurd_video.c
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@ -117,49 +117,29 @@ xf86LinearVidMem()
/**************************************************************************
* I/O Permissions section
***************************************************************************/
mach_port_t io_port;
/*
* 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()
{
mach_port_t device;
kern_return_t err;
err = get_privileged_ports(NULL, &device);
if( err )
{
errno = err;
FatalError("xf86EnableIO() can't get_privileged_ports. (%s)\n",strerror(errno));
}
err = device_open(device,D_READ|D_WRITE,"io",&io_port);
mach_port_deallocate(mach_task_self(), device);
if( err )
{
errno = err;
FatalError("xf86EnableIO() can't device_open. (%s)\n",strerror(errno));
}
err = i386_io_port_add(mach_thread_self (), io_port);
if( err )
{
errno = err;
FatalError("xf86EnableIO() can't i386_io_port_add.(io_port) (%s)\n",strerror(errno));
if (ioperm(0, 0xffff, 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()
{
kern_return_t err;
err = i386_io_port_remove(mach_thread_self (), io_port);
if( err )
{
errno = err;
FatalError("xf86DisableIO() can't i386_io_port_remove.(io_port) (%s)\n",strerror(errno));
}
mach_port_deallocate(mach_task_self(), io_port);
ioperm(0,0xffff,0);
return;
}