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/isa/isa_common.h

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    1 /*-
    2  * Copyright (c) 1999 Doug Rabson
    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  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD: src/sys/isa/isa_common.h,v 1.11 2002/10/16 10:38:48 phk Exp $
   27  */
   28 
   29 /*
   30  * Parts of the ISA bus implementation common to all architectures.
   31  *
   32  * Drivers must not depend on information in this file as it can change
   33  * without notice.
   34  */
   35 
   36 /*
   37  * PNP configurations are kept in a tailq.
   38  */
   39 TAILQ_HEAD(isa_config_list, isa_config_entry);
   40 struct isa_config_entry {
   41         TAILQ_ENTRY(isa_config_entry) ice_link;
   42         int                     ice_priority;
   43         struct isa_config       ice_config;
   44 };
   45 
   46 /*
   47  * The structure used to attach devices to the isa bus.
   48  */
   49 struct isa_device {
   50         struct resource_list    id_resources;
   51         u_int32_t               id_vendorid; /* pnp vendor id */
   52         u_int32_t               id_serial; /* pnp serial */
   53         u_int32_t               id_logicalid; /* pnp logical device id */
   54         u_int32_t               id_compatid; /* pnp compat device id */
   55         struct isa_config_list  id_configs; /* pnp config alternatives */
   56         isa_config_cb           *id_config_cb; /* callback function */
   57         void                    *id_config_arg; /* callback argument */
   58         int                     id_config_attr; /* pnp config attributes */
   59 };
   60 
   61 #define DEVTOISA(dev)   ((struct isa_device *) device_get_ivars(dev))
   62 
   63 /*
   64  * These functions are architecture dependant.
   65  */
   66 extern void isa_init(device_t dev);
   67 extern struct resource *isa_alloc_resource(device_t bus, device_t child,
   68                                            int type, int *rid,
   69                                            u_long start, u_long end,
   70                                            u_long count, u_int flags);
   71 extern int isa_release_resource(device_t bus, device_t child,
   72                                 int type, int rid,
   73                                 struct resource *r);
   74 
   75 /* XXX alphe declares these elsewhere */
   76 #ifndef __alpha__
   77 extern int isa_setup_intr(device_t bus, device_t child,
   78                           struct resource *r, int flags,
   79                           void (*ihand)(void *), void *arg, void **cookiep);
   80 extern int isa_teardown_intr(device_t bus, device_t child,
   81                              struct resource *r, void *cookie);
   82 #endif
   83 

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