| 1 | /* $NetBSD: evtchn.h,v 1.23 2015/03/14 10:49:36 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 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #ifndef _XEN_EVENTS_H_ |
| 30 | #define _XEN_EVENTS_H_ |
| 31 | |
| 32 | #define NR_PIRQS 256 |
| 33 | |
| 34 | extern struct evtsource *evtsource[]; |
| 35 | |
| 36 | void events_default_setup(void); |
| 37 | void events_init(void); |
| 38 | bool events_suspend(void); |
| 39 | bool events_resume(void); |
| 40 | |
| 41 | unsigned int evtchn_do_event(int, struct intrframe *); |
| 42 | void call_evtchn_do_event(int, struct intrframe *); |
| 43 | void call_xenevt_event(int); |
| 44 | int event_set_handler(int, int (*func)(void *), void *, int, const char *); |
| 45 | int event_remove_handler(int, int (*func)(void *), void *); |
| 46 | |
| 47 | struct cpu_info; |
| 48 | struct intrhand; |
| 49 | void event_set_iplhandler(struct cpu_info *, 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 | int unbind_pirq_from_evtch(int); |
| 57 | int unbind_virq_from_evtch(int); |
| 58 | |
| 59 | evtchn_port_t bind_vcpu_to_evtch(cpuid_t); |
| 60 | |
| 61 | struct pintrhand { |
| 62 | int pirq; |
| 63 | int evtch; |
| 64 | int (*func)(void *); |
| 65 | void *arg; |
| 66 | }; |
| 67 | |
| 68 | struct pintrhand *pirq_establish(int, int, int (*)(void *), void *, int, |
| 69 | const char *); |
| 70 | void pirq_disestablish(struct pintrhand *); |
| 71 | |
| 72 | #endif /* _XEN_EVENTS_H_ */ |
| 73 | |