sys/arch/acorn26/include/fiq.h

   1 /*      $NetBSD: fiq.h,v 1.4 2001/12/20 01:20:25 thorpej Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2001 Ben Harris
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. The name of the author may not be used to endorse or promote products
  16  *    derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifndef _ACORN26_FIQ_H_
  31 #define _ACORN26_FIQ_H_
  32 #include <arch/acorn26/iobus/iocreg.h>
  33
  34 /*
  35  * These definitions specify how the devices are wired to the IOC
  36  * interrupt lines.
  37  */
  38 /* All systems */
  39 #define FIQ_EFIQ        IOC_FIQ_FL      /* Econet interrupt request */
  40 #define FIQ_PFIQ        IOC_FIQ_IL0     /* Podule FIQ request */
  41 /* Archimedes systems */
  42 #define FIQ_FFDQ        IOC_FIQ_FH0     /* Floppy disc data request */
  43 #define FIQ_FFIQ        IOC_FIQ_FH1     /* Floppy disc interrupt request */
  44 /* IOEB systems */
  45 #define FIQ_FDDRQ       IOC_FIQ_FH0     /* Floppy disc data request */
  46 #define FIQ_SINTR       IOC_FIQ_C4      /* Serial line interrupt */
  47
  48 extern void (*fiq_downgrade_handler)(void);
  49
  50 #endif