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/i386/include/dvcfg.h

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    1 /* $FreeBSD: releng/5.0/sys/i386/include/dvcfg.h 92761 2002-03-20 05:48:58Z alfred $ */
    2 /*      $NetBSD$        */
    3 /*
    4  * [NetBSD for NEC PC98 series]
    5  *  Copyright (c) 1996 NetBSD/pc98 porting staff.
    6  *  All rights reserved.
    7  * 
    8  *  Redistribution and use in source and binary forms, with or without
    9  *  modification, are permitted provided that the following conditions
   10  *  are met:
   11  *  1. Redistributions of source code must retain the above copyright
   12  *     notice, this list of conditions and the following disclaimer.
   13  *  2. Redistributions in binary form must reproduce the above copyright
   14  *     notice, this list of conditions and the following disclaimer in the
   15  *     documentation and/or other materials provided with the distribution.
   16  *  3. The name of the author may not be used to endorse or promote products
   17  *     derived from this software without specific prior written permission.
   18  * 
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   22  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
   23  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   25  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   27  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   28  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 /*
   32  * Copyright (c) 1996 Naofumi HONDA.  All rights reserved.
   33  */
   34 
   35 #ifndef _I386_DVCFG_H_
   36 #define _I386_DVCFG_H_
   37 
   38 typedef void *dvcfg_hw_t;
   39 
   40 struct dvcfg_hwsel {
   41         int cfg_max;
   42 
   43         dvcfg_hw_t *cfg_sel;
   44 };
   45 
   46 #define DVCFG_MAJOR(dvcfg)      (((u_int)(dvcfg)) >> 16)
   47 #define DVCFG_MINOR(dvcfg)      (((u_int)(dvcfg)) & 0xffff)
   48 
   49 #define DVCFG_MKCFG(major, minor) ((((u_int)(major)) << 16) | ((minor) & 0xffff))
   50 
   51 #define DVCFG_HWSEL_SZ(array)   (sizeof(array) / sizeof(dvcfg_hw_t))
   52 
   53 static __inline dvcfg_hw_t dvcfg_hw(struct dvcfg_hwsel *, u_int);
   54 
   55 static __inline dvcfg_hw_t
   56 dvcfg_hw(selp, num)
   57         struct dvcfg_hwsel *selp;
   58         u_int num;
   59 {
   60 
   61         return ((num >= selp->cfg_max) ? 0 : selp->cfg_sel[num]);
   62 }
   63 
   64 #define DVCFG_HW(SELP, NUM)     dvcfg_hw((SELP), (NUM))
   65 #endif  /* _I386_DVCFG_H_ */

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