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evtchn.h revision 1.2
      1  1.2  bouyer /*	$NetBSD: evtchn.h,v 1.2 2005/03/09 22:39:20 bouyer Exp $	*/
      2  1.2  bouyer 
      3  1.2  bouyer /*
      4  1.2  bouyer  *
      5  1.2  bouyer  * Copyright (c) 2004 Christian Limpach.
      6  1.2  bouyer  * All rights reserved.
      7  1.2  bouyer  *
      8  1.2  bouyer  * Redistribution and use in source and binary forms, with or without
      9  1.2  bouyer  * modification, are permitted provided that the following conditions
     10  1.2  bouyer  * are met:
     11  1.2  bouyer  * 1. Redistributions of source code must retain the above copyright
     12  1.2  bouyer  *    notice, this list of conditions and the following disclaimer.
     13  1.2  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     14  1.2  bouyer  *    notice, this list of conditions and the following disclaimer in the
     15  1.2  bouyer  *    documentation and/or other materials provided with the distribution.
     16  1.2  bouyer  * 3. All advertising materials mentioning features or use of this software
     17  1.2  bouyer  *    must display the following acknowledgement:
     18  1.2  bouyer  *      This product includes software developed by Christian Limpach.
     19  1.2  bouyer  * 4. The name of the author may not be used to endorse or promote products
     20  1.2  bouyer  *    derived from this software without specific prior written permission.
     21  1.2  bouyer  *
     22  1.2  bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  1.2  bouyer  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  1.2  bouyer  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  1.2  bouyer  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  1.2  bouyer  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  1.2  bouyer  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  1.2  bouyer  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  1.2  bouyer  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  1.2  bouyer  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  1.2  bouyer  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  1.2  bouyer  */
     33  1.2  bouyer 
     34  1.2  bouyer #ifndef _XEN_EVENTS_H_
     35  1.2  bouyer #define _XEN_EVENTS_H_
     36  1.2  bouyer 
     37  1.2  bouyer #define	NR_IRQS		32
     38  1.2  bouyer #define NR_PIRQS	32 /* XXX is this enouth ? */
     39  1.2  bouyer 
     40  1.2  bouyer extern int evtchn_to_irq[];
     41  1.2  bouyer 
     42  1.2  bouyer /* typedef unsigned int (*ev_handler_t)(int, struct pt_regs *); */
     43  1.2  bouyer typedef int (*ev_handler_t)(void *);
     44  1.2  bouyer 
     45  1.2  bouyer void events_default_setup(void);
     46  1.2  bouyer void init_events(void);
     47  1.2  bouyer unsigned int do_event(int, struct intrframe *);
     48  1.2  bouyer int event_set_handler(int, ev_handler_t, void *, int);
     49  1.2  bouyer int event_remove_handler(int, ev_handler_t, void *);
     50  1.2  bouyer 
     51  1.2  bouyer int bind_virq_to_irq(int);
     52  1.2  bouyer int bind_pirq_to_irq(int);
     53  1.2  bouyer void unbind_pirq_from_irq(int);
     54  1.2  bouyer void unbind_virq_from_irq(int);
     55  1.2  bouyer int bind_evtchn_to_irq(int);
     56  1.2  bouyer int unbind_evtchn_to_irq(int);
     57  1.2  bouyer 
     58  1.2  bouyer struct pintrhand {
     59  1.2  bouyer 	int pirq;
     60  1.2  bouyer 	int irq;
     61  1.2  bouyer 	int (*func)(void *);
     62  1.2  bouyer 	void *arg;
     63  1.2  bouyer };
     64  1.2  bouyer 
     65  1.2  bouyer struct pintrhand *pirq_establish(int, int, int (*)(void *), void *, int);
     66  1.2  bouyer 
     67  1.2  bouyer #endif /*  _XEN_EVENTS_H_ */
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