1 /* $NetBSD: evtchn.h,v 1.15 2008/02/19 13:25:53 bouyer Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 2004 Christian Limpach. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Christian Limpach. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _XEN_EVENTS_H_ 35 #define _XEN_EVENTS_H_ 36 37 #define NR_PIRQS 256 38 39 extern struct evtsource *evtsource[]; 40 41 void events_default_setup(void); 42 void init_events(void); 43 unsigned int evtchn_do_event(int, struct intrframe *); 44 void call_evtchn_do_event(int, struct intrframe *); 45 int event_set_handler(int, int (*func)(void *), void *, int, const char *); 46 int event_remove_handler(int, int (*func)(void *), void *); 47 48 struct intrhand; 49 void event_set_iplhandler(struct intrhand *, int); 50 51 extern int debug_port; 52 extern int xen_debug_handler(void *); 53 54 int bind_virq_to_evtch(int); 55 int bind_pirq_to_evtch(int); 56 void unbind_pirq_from_evtch(int); 57 void unbind_virq_from_evtch(int); 58 59 struct pintrhand { 60 int pirq; 61 int evtch; 62 int (*func)(void *); 63 void *arg; 64 }; 65 66 struct pintrhand *pirq_establish(int, int, int (*)(void *), void *, int, 67 const char *); 68 69 #endif /* _XEN_EVENTS_H_ */ 70