sys/arch/hpcarm/include/irqhandler.h

   1 /*      $NetBSD: irqhandler.h,v 1.8 2008/04/27 18:58:47 matt 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 _HPCARM_IRQHANDLER_H_
  44 #define _HPCARM_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 /* XXX ICU_LEN is used for the same purpose. Either one should be nuked */
  57 #define NIRQS           0x20
  58
  59 #include <machine/intr.h>
  60
  61 #ifndef _LOCORE
  62 typedef struct irqhandler {
  63         int (*ih_func)(void *);         /* handler function */
  64         void *ih_arg;                   /* Argument to handler */
  65         int ih_level;                   /* Interrupt level */
  66         int ih_count;                   /* Interrupt number (for accounting) */
  67         int ih_irq;                     /* Interrupt register pin */
  68         const char *ih_name;            /* Name of interrupt (for vmstat -i) */
  69         u_int ih_flags;                 /* Interrupt flags */
  70         u_int ih_maskaddr;              /* mask address for expansion cards */
  71         u_int ih_maskbits;              /* interrupt bit for expansion cards */
  72         struct irqhandler *ih_next;     /* next handler */
  73 } irqhandler_t;
  74
  75 #ifdef _KERNEL
  76 extern u_int irqmasks[NIPL];
  77 extern irqhandler_t *irqhandlers[NIRQS];
  78
  79 void irq_init(void);
  80 void irq_setmasks(void);
  81 void disable_irq(int);
  82 void enable_irq(int);
  83 #endif  /* _KERNEL */
  84 #endif  /* _LOCORE */
  85
  86 #define IRQ_FLAG_ACTIVE 0x00000001      /* This is the active handler in list */
  87
  88 #endif  /* _HPCARM_IRQHANDLER_H_ */
  89
  90 /* End of irqhandler.h */