The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/interrupt.h

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    1 /*
    2  * Copyright (c) 1997, Stefan Esser <se@freebsd.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice unmodified, this list of conditions, and the following
   10  *    disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD: stable/3/sys/sys/interrupt.h 50583 1999-08-29 16:33:42Z peter $
   27  */
   28 
   29 /* XXX currently dev_instance must be set to the ISA device_id or -1 for PCI */
   30 #define INTR_FAST               0x00000001 /* fast interrupt handler */
   31 #define INTR_EXCL               0x00010000 /* excl. intr, default is shared */
   32 
   33 typedef void swihand_t __P((void));
   34 
   35 struct intrec *intr_create(void *dev_instance, int irq, inthand2_t handler,
   36                            void *arg, intrmask_t *maskptr, int flags);
   37 
   38 int intr_destroy(struct intrec *idesc);
   39 
   40 int intr_connect(struct intrec *idesc);
   41 int intr_disconnect(struct intrec *idesc);
   42 
   43 void    register_swi __P((int intr, swihand_t *handler));
   44 void    swi_dispatcher __P((int intr));
   45 swihand_t swi_generic;
   46 swihand_t swi_null;
   47 void    unregister_swi __P((int intr, swihand_t *handler));
   48 
   49 /* XXX emulate old interface for now ... */
   50 int register_intr __P((int intr, int device_id, u_int flags,
   51                        inthand2_t *handler, u_int *maskptr, int unit));
   52 int unregister_intr(int intr, inthand2_t handler);
   53 
   54 #ifdef NHWI
   55 /* XXX type change in middle; MI code uses only the top NSWI entries. */
   56 extern swihand_t *ihandlers[NHWI + NSWI];
   57 #endif

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