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/arm/include/katelib.h

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    1 /*      $NetBSD: katelib.h,v 1.3 2001/11/23 19:21:48 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 Brini.
   21  * 4. The name of the company nor the name of the author may be used to
   22  *    endorse or promote products derived from this software without specific
   23  *    prior written permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
   26  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   27  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   28  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   29  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   35  * SUCH DAMAGE.
   36  *
   37  * RiscBSD kernel project
   38  *
   39  * katelib.h
   40  *
   41  * Prototypes for machine specific functions. Most of these
   42  * could be inlined.
   43  *
   44  * This should not really be a separate header file. Eventually I will merge
   45  * this into other header files once I have decided where the declarations
   46  * should go. 
   47  *
   48  * Created      : 18/09/94
   49  *
   50  * Based on kate/katelib/prototypes.h
   51  *
   52  * $FreeBSD: releng/6.1/sys/arm/include/katelib.h 139735 2005-01-05 21:58:49Z imp $
   53  */
   54 
   55 /*
   56  * USE OF THIS FILE IS DEPRECATED
   57  */
   58 
   59 #ifndef _MACHINE_KATELIB_H_
   60 #define _MACHINE_KATELIB_H_
   61 #include <sys/types.h>
   62 #include <machine/cpufunc.h>
   63 
   64 #ifdef _KERNEL
   65 
   66 /* Assembly modules */
   67 
   68 /* In blockio.S */
   69 #include <machine/blockio.h>
   70 
   71 /* Macros for reading and writing words, shorts, bytes */
   72 
   73 #define WriteWord(a, b) \
   74 *((volatile unsigned int *)(a)) = (b)
   75 
   76 #define ReadWord(a) \
   77 (*((volatile unsigned int *)(a)))
   78 
   79 #define WriteShort(a, b) \
   80 *((volatile unsigned int *)(a)) = ((b) | ((b) << 16))
   81 
   82 #define ReadShort(a) \
   83 ((*((volatile unsigned int *)(a))) & 0xffff)
   84 
   85 #define WriteByte(a, b) \
   86 *((volatile unsigned char *)(a)) = (b)
   87 
   88 #define ReadByte(a) \
   89 (*((volatile unsigned char *)(a)))
   90 
   91 /* Define in/out macros */
   92 
   93 #define inb(port)               ReadByte((port))
   94 #define outb(port, byte)        WriteByte((port), (byte))
   95 #define inw(port)               ReadShort((port))
   96 #define outw(port, word)        WriteShort((port), (word))
   97 #define inl(port)               ReadWord((port))
   98 #define outl(port, lword)       WriteWord((port), (lword))
   99 
  100 #endif
  101 
  102 #endif /* !_MACHINE_KATELIB_H_ */
  103 /* End of katelib.h */

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