1 /* $NetBSD: irqhandler.h,v 1.4 2002/04/12 18:50:32 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994-1996 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * This code is derived from software written for Brini by Mark Brinicombe 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Mark Brinicombe 21 * for the NetBSD Project. 22 * 4. The name of the company nor the name of the author may be used to 23 * endorse or promote products derived from this software without specific 24 * prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 28 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 30 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 32 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * IRQ related stuff (defines + structures) 39 * 40 * Created : 30/09/94 41 */ 42 43 #ifndef _ARM32_IRQHANDLER_H_ 44 #define _ARM32_IRQHANDLER_H_ 45 46 #ifndef _LOCORE 47 #include <sys/types.h> 48 #endif /* _LOCORE */ 49 50 /* Define the IRQ bits */ 51 52 #define IRQ_VSYNC IRQ_FLYBACK /* Aliased */ 53 #define IRQ_NETSLOT IRQ_EXTENDED 54 55 #define IRQ_INSTRUCT -1 56 #define NIRQS 0x20 57 58 #include <machine/intr.h> 59 60 #ifndef _LOCORE 61 typedef struct irqhandler { 62 int (*ih_func) __P((void *arg));/* handler function */ 63 void *ih_arg; /* Argument to handler */ 64 int ih_level; /* Interrupt level */ 65 int ih_num; /* Interrupt number (for accounting) */ 66 const char *ih_name; /* Name of interrupt (for vmstat -i) */ 67 u_int ih_flags; /* Interrupt flags */ 68 u_int ih_maskaddr; /* mask address for expansion cards */ 69 u_int ih_maskbits; /* interrupt bit for expansion cards */ 70 struct irqhandler *ih_next; /* next handler */ 71 } irqhandler_t; 72 73 #ifdef _KERNEL 74 extern u_int irqmasks[IPL_LEVELS]; 75 extern irqhandler_t *irqhandlers[NIRQS]; 76 77 void irq_init __P((void)); 78 int irq_claim __P((int, irqhandler_t *)); 79 int irq_release __P((int, irqhandler_t *)); 80 void *intr_claim __P((int irq, int level, const char *name, int (*func) __P((void *)), void *arg)); 81 int intr_release __P((void *ih)); 82 void irq_setmasks __P((void)); 83 void disable_irq __P((int)); 84 void enable_irq __P((int)); 85 #endif /* _KERNEL */ 86 #endif /* _LOCORE */ 87 88 #define IRQ_FLAG_ACTIVE 0x00000001 /* This is the active handler in list */ 89 90 #endif /* _ARM32_IRQHANDLER_H_ */ 91 92 /* End of irqhandler.h */ 93