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 1.5 1999/09/07 08:42:47 dfr 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 MALLOC_DECLARE(M_ISADEV);
   37 
   38 /*
   39  * PNP configurations are kept in a tailq.
   40  */
   41 TAILQ_HEAD(isa_config_list, isa_config_entry);
   42 struct isa_config_entry {
   43         TAILQ_ENTRY(isa_config_entry) ice_link;
   44         int                     ice_priority;
   45         struct isa_config       ice_config;
   46 };
   47 
   48 /*
   49  * The structure used to attach devices to the isa bus.
   50  */
   51 struct isa_device {
   52         struct resource_list    id_resources;
   53         u_int32_t               id_vendorid; /* pnp vendor id */
   54         u_int32_t               id_serial; /* pnp serial */
   55         u_int32_t               id_logicalid; /* pnp logical device id */
   56         u_int32_t               id_compatid; /* pnp compat device id */
   57         struct isa_config_list  id_configs; /* pnp config alternatives */
   58         isa_config_cb           *id_config_cb; /* callback function */
   59         void                    *id_config_arg; /* callback argument */
   60 };
   61 
   62 #define DEVTOISA(dev)   ((struct isa_device *) device_get_ivars(dev))
   63 
   64 /*
   65  * These functions are architecture dependant.
   66  */
   67 extern void isa_init(void);
   68 extern struct resource *isa_alloc_resource(device_t bus, device_t child,
   69                                            int type, int *rid,
   70                                            u_long start, u_long end,
   71                                            u_long count, u_int flags);
   72 extern int isa_release_resource(device_t bus, device_t child,
   73                                 int type, int rid,
   74                                 struct resource *r);
   75 
   76 /* XXX alphe declares these elsewhere */
   77 #ifndef __alpha__
   78 extern int isa_setup_intr(device_t bus, device_t child,
   79                           struct resource *r, int flags,
   80                           void (*ihand)(void *), void *arg, void **cookiep);
   81 extern int isa_teardown_intr(device_t bus, device_t child,
   82                              struct resource *r, void *cookie);
   83 #endif
   84 

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