sys/arch/arm/include/fiq.h

   1 /*      $NetBSD: fiq.h,v 1.1 2001/12/20 01:20:23 thorpej Exp $  */
   2
   3 /*
   4  * Copyright (c) 2001 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #ifndef _ARM_FIQ_H_
  39 #define _ARM_FIQ_H_
  40
  41 #include <sys/queue.h>
  42
  43 struct fiqregs {
  44         u_int   fr_r8;                  /* FIQ mode r8 */
  45         u_int   fr_r9;                  /* FIQ mode r9 */
  46         u_int   fr_r10;                 /* FIQ mode r10 */
  47         u_int   fr_r11;                 /* FIQ mode r11 */
  48         u_int   fr_r12;                 /* FIQ mode r12 */
  49         u_int   fr_r13;                 /* FIQ mode r13 */
  50 };
  51
  52 struct fiqhandler {
  53         TAILQ_ENTRY(fiqhandler) fh_list;/* link in the FIQ handler stack */
  54         void    *fh_func;               /* FIQ handler routine */
  55         size_t  fh_size;                /* size of FIQ handler */
  56         int     fh_flags;               /* flags; see below */
  57         struct fiqregs *fh_regs;        /* pointer to regs structure */
  58 };
  59
  60 #define FH_CANPUSH      0x01    /* can push this handler out of the way */
  61
  62 int     fiq_claim(struct fiqhandler *);
  63 void    fiq_release(struct fiqhandler *);
  64
  65 void    fiq_getregs(struct fiqregs *);
  66 void    fiq_setregs(struct fiqregs *);
  67
  68 #endif /* _ARM_FIQ_H_ */