diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/usl/usl_iop.c')
-rw-r--r-- | xorg-server/hw/xfree86/os-support/usl/usl_iop.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/xorg-server/hw/xfree86/os-support/usl/usl_iop.c b/xorg-server/hw/xfree86/os-support/usl/usl_iop.c deleted file mode 100644 index c6382fc7e..000000000 --- a/xorg-server/hw/xfree86/os-support/usl/usl_iop.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * Copyright 2001,2005 by Kean Johnston <jkj@sco.com> - * - * 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 Kean Johnston not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Kean Johnston makes no - * representations about the suitability of this software for any purpose. - * It is provided "as is" without express or implied warranty. - * - * KEAN JOHNSTON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL KEAN JOHNSTON 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. - */ - - -#include "X.h" - -#include "compiler.h" - -#define _NEED_SYSI86 -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86OSpriv.h" -#include "xf86_OSlib.h" - - -/***************************************************************************/ -/* I/O Permissions section */ -/***************************************************************************/ - -static Bool IOEnabled = FALSE; - -_X_EXPORT Bool -xf86EnableIO(void) -{ - if (IOEnabled) - return TRUE; - - if (sysi86(SI86IOPL, 3) < 0) - FatalError("Failed to set IOPL for extended I/O\n"); - IOEnabled = TRUE; - return TRUE; -} - -_X_EXPORT void -xf86DisableIO(void) -{ - if (!IOEnabled) - return; - - sysi86(SI86IOPL, 0); - IOEnabled = FALSE; -} - -/***************************************************************************/ -/* Interrupt Handling section */ -/***************************************************************************/ - -_X_EXPORT Bool -xf86DisableInterrupts(void) -{ - if (!IOEnabled) { - if (sysi86(SI86IOPL, 3) < 0) - return FALSE; - } - -#ifdef __GNUC__ - __asm__ __volatile__("cli"); -#else - asm("cli"); -#endif /* __GNUC__ */ - - if (!IOEnabled) { - sysi86(SI86IOPL, 0); - } - - return(TRUE); -} - -_X_EXPORT void -xf86EnableInterrupts(void) -{ - if (!IOEnabled) { - if (sysi86(SI86IOPL, 3) < 0) - return; - } - -#ifdef __GNUC__ - __asm__ __volatile__("sti"); -#else - asm("sti"); -#endif /* __GNUC__ */ - - if (!IOEnabled) { - sysi86(SI86IOPL, 0); - } -} - |