sa11x0_irqhandler.c revision 135667
1/* $NetBSD: sa11x0_irqhandler.c,v 1.5 2003/08/07 16:26:54 agc Exp $ */ 2 3/*- 4 * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to the NetBSD Foundation 8 * by IWAMOTO Toshihiro. 9 * 10 * This code is derived from software contributed to The NetBSD Foundation 11 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 12 * Simulation Facility, NASA Ames Research Center. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. All advertising materials mentioning features or use of this software 23 * must display the following acknowledgement: 24 * This product includes software developed by the NetBSD 25 * Foundation, Inc. and its contributors. 26 * 4. Neither the name of The NetBSD Foundation nor the names of its 27 * contributors may be used to endorse or promote products derived 28 * from this software without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 32 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 33 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 34 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 38 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGE. 41 */ 42 43/*- 44 * Copyright (c) 1991 The Regents of the University of California. 45 * All rights reserved. 46 * 47 * This code is derived from software contributed to Berkeley by 48 * William Jolitz. 49 * 50 * Redistribution and use in source and binary forms, with or without 51 * modification, are permitted provided that the following conditions 52 * are met: 53 * 1. Redistributions of source code must retain the above copyright 54 * notice, this list of conditions and the following disclaimer. 55 * 2. Redistributions in binary form must reproduce the above copyright 56 * notice, this list of conditions and the following disclaimer in the 57 * documentation and/or other materials provided with the distribution. 58 * 3. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * @(#)isa.c 7.2 (Berkeley) 5/13/91 75 */ 76 77 78#include <sys/cdefs.h> 79__FBSDID("$FreeBSD: head/sys/arm/sa11x0/sa11x0_irqhandler.c 135667 2004-09-23 22:33:38Z cognet $"); 80 81#include <sys/param.h> 82#include <sys/kernel.h> 83#include <sys/systm.h> 84#include <sys/syslog.h> 85#include <sys/malloc.h> 86#include <sys/types.h> 87#include <sys/bus.h> 88#include <sys/interrupt.h> 89#include <vm/vm.h> 90#include <vm/vm_extern.h> 91 92#include <arm/sa11x0/sa11x0_reg.h> 93#include <arm/sa11x0/sa11x0_var.h> 94 95#include <machine/cpu.h> 96#include <machine/intr.h> 97 98#define NIRQS 0x20 99struct intrhand *irqhandlers[NIRQS]; 100 101int current_intr_depth; 102extern struct sa11x0_softc *sa11x0_softc; 103 104 105/* Recalculate the interrupt masks from scratch. 106 * We could code special registry and deregistry versions of this function that 107 * would be faster, but the code would be nastier, and we don't expect this to 108 * happen very much anyway. 109 */ 110int 111arm_get_irqnb(void *frame) 112{ 113 struct sa11x0_softc *sc = sa11x0_softc; 114 115 return(bus_space_read_4(sc->sc_iot, sc->sc_ioh, SAIPIC_IP)); 116} 117 118void 119arm_mask_irqs(int irq) 120{ 121 /* XXX */ 122} 123 124void 125arm_unmask_irqs(int irq) 126{ 127 /* XXX */ 128} 129 130void stray_irqhandler(void *); 131 132 133 134void 135stray_irqhandler(void *p) 136{ 137 138 printf("stray interrupt %p\n", p); 139} 140/* End of irqhandler.c */ 141