oskit/oskit-20020317/dev/osenv_intr.c

108 lines
2.6 KiB
C
Executable File

/*
* Copyright (c) 1996, 1998-2001 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Default interrupt control object.
*/
#include <oskit/com.h>
#include <oskit/dev/dev.h>
#include <oskit/dev/osenv_intr.h>
#include <stdlib.h>
#include <string.h>
/*
* There is one and only one interrupt interface in this implementation.
*/
static struct oskit_osenv_intr_ops osenv_intr_ops;
#ifdef KNIT
struct oskit_osenv_intr osenv_intr_object = {&osenv_intr_ops};
#else
static struct oskit_osenv_intr osenv_intr_object = {&osenv_intr_ops};
#endif
static OSKIT_COMDECL
intr_query(oskit_osenv_intr_t *s, const oskit_iid_t *iid, void **out_ihandle)
{
if (memcmp(iid, &oskit_iunknown_iid, sizeof(*iid)) == 0 ||
memcmp(iid, &oskit_osenv_intr_iid, sizeof(*iid)) == 0) {
*out_ihandle = s;
return 0;
}
*out_ihandle = 0;
return OSKIT_E_NOINTERFACE;
};
static OSKIT_COMDECL_U
intr_addref(oskit_osenv_intr_t *s)
{
/* Only one object */
return 1;
}
static OSKIT_COMDECL_U
intr_release(oskit_osenv_intr_t *s)
{
/* Only one object */
return 1;
}
static OSKIT_COMDECL_V
intr_enable(oskit_osenv_intr_t *s)
{
osenv_intr_enable();
}
static OSKIT_COMDECL_V
intr_disable(oskit_osenv_intr_t *s)
{
osenv_intr_disable();
}
static OSKIT_COMDECL_U
intr_enabled(oskit_osenv_intr_t *s)
{
return osenv_intr_enabled();
}
static OSKIT_COMDECL_U
intr_savedisable(oskit_osenv_intr_t *s)
{
return osenv_intr_save_disable();
}
static struct oskit_osenv_intr_ops osenv_intr_ops = {
intr_query,
intr_addref,
intr_release,
intr_enable,
intr_disable,
intr_enabled,
intr_savedisable,
};
#ifndef KNIT
/*
* Return a reference to the one and only interrupt object.
*/
oskit_osenv_intr_t *
oskit_create_osenv_intr(void)
{
return &osenv_intr_object;
}
#endif