2 * Copyright (c) 1996, by Steve Passe
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. The name of the developer may NOT be used to endorse or promote products
11 * derived from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * $FreeBSD: src/sys/i386/include/mpapic.h,v 1.14.2.2 2000/09/30 02:49:34 ps Exp $
26 * $DragonFly: src/sys/platform/pc32/apic/mpapic.h,v 1.12 2008/06/07 11:37:23 mneumann Exp $
29 #ifndef _ARCH_APIC_IOAPIC_H_
30 #define _ARCH_APIC_IOAPIC_H_
37 #include <sys/queue.h>
40 u_int ioapic_read(volatile void *, int);
41 void ioapic_write(volatile void *, int, u_int);
43 struct ioapic_enumerator {
45 TAILQ_ENTRY(ioapic_enumerator) ioapic_link;
46 int (*ioapic_probe)(struct ioapic_enumerator *);
47 void (*ioapic_enumerate)(struct ioapic_enumerator *);
50 #define IOAPIC_ENUM_PRIO_MPTABLE 20
51 #define IOAPIC_ENUM_PRIO_MADT 40
53 void ioapic_enumerator_register(struct ioapic_enumerator *);
54 void ioapic_add(void *, int, int);
55 void ioapic_intsrc(int, int, enum intr_trigger, enum intr_polarity);
56 void *ioapic_gsi_ioaddr(int);
57 int ioapic_gsi_pin(int);
58 void ioapic_pin_setup(void *, int, int,
59 enum intr_trigger, enum intr_polarity);
60 void ioapic_extpin_setup(void *, int, int);
61 int ioapic_extpin_gsi(void);
62 int ioapic_gsi(int, int);
63 void *ioapic_map(vm_paddr_t);
65 extern int ioapic_enable;
67 #endif /* !_ARCH_APIC_IOAPIC_H_ */