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/isa/isa_device.h

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    1 /*-
    2  * Copyright (c) 1991 The Regents of the University of California.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by the University of
   16  *      California, Berkeley and its contributors.
   17  * 4. Neither the name of the University nor the names of its contributors
   18  *    may be used to endorse or promote products derived from this software
   19  *    without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  *
   33  *      from: @(#)isa_device.h  7.1 (Berkeley) 5/9/91
   34  * $FreeBSD: releng/5.0/sys/i386/isa/isa_device.h 99629 2002-07-09 01:16:18Z mike $
   35  */
   36 
   37 #ifndef _I386_ISA_ISA_DEVICE_H_
   38 #define _I386_ISA_ISA_DEVICE_H_
   39 
   40 #ifdef _KERNEL
   41 #include <sys/bus.h>
   42 #include <isa/isavar.h>
   43 #include "opt_compat_oldisa.h"
   44 #endif
   45 
   46 /*
   47  * ISA Bus Autoconfiguration
   48  */
   49 
   50 #ifdef COMPAT_OLDISA
   51 
   52 /* Interrupt handler function type. */
   53 typedef void    ointhand2_t(int _device_id);
   54 
   55 /*
   56  * Per device structure.
   57  */
   58 struct isa_device {
   59         struct  isa_driver *id_driver;
   60         int     id_iobase;      /* base i/o address */
   61         int     id_iosize;      /* base i/o length */
   62         u_int   id_irq;         /* interrupt request */
   63         int     id_drq;         /* DMA request */
   64         caddr_t id_maddr;       /* physical i/o memory address on bus (if any)*/
   65         int     id_msize;       /* size of i/o memory */
   66         union {
   67                 driver_intr_t *id_i;
   68                 ointhand2_t *id_oi;
   69         } id_iu;                /* interrupt interface routine */
   70 #define id_intr         id_iu.id_i
   71 #define id_ointr        id_iu.id_oi
   72         int     id_unit;        /* unit number */
   73         int     id_flags;       /* flags */
   74         int     id_enabled;     /* is device enabled */
   75         struct device *id_device; /* new-bus wrapper device */
   76 };
   77 
   78 /*
   79  * Per-driver structure.
   80  *
   81  * Each device driver defines entries for a set of routines
   82  * as well as an array of types which are acceptable to it.
   83  * These are used at boot time by the configuration program.
   84  */
   85 struct isa_driver {
   86         int     intrflags;
   87         int     (*probe)(struct isa_device *idp);
   88                                         /* test whether device is present */
   89         int     (*attach)(struct isa_device *idp);
   90                                         /* setup driver for a device */
   91         const char *name;               /* device name */
   92         int     sensitive_hw;           /* true if other probes confuse us */
   93 };
   94 
   95 #ifdef _KERNEL
   96 
   97 /* Wrappers */
   98 struct  module;
   99 int     compat_isa_handler(struct module *, int, void *);
  100 #define COMPAT_ISA_DRIVER(name, isadata)                                \
  101 static moduledata_t name##_mod = {                                      \
  102         #name,                                                          \
  103         compat_isa_handler,                                             \
  104         &isadata                                                        \
  105 };                                                                      \
  106 DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_ANY)          \
  107 
  108 #endif
  109 
  110 #endif  /* COMPAT_OLDISA */
  111 
  112 #endif /* !_I386_ISA_ISA_DEVICE_H_ */

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