FreeBSD/Linux Kernel Cross Reference
sys/isa/isa_common.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 1999 Doug Rabson
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD: releng/12.0/sys/isa/isa_common.h 326272 2017-11-27 15:23:17Z pfg $
     */
    
    /*
     * Parts of the ISA bus implementation common to all architectures.
     *
     * Drivers must not depend on information in this file as it can change
     * without notice.
     */
    
    /*
     * PNP configurations are kept in a tailq.
     */
    TAILQ_HEAD(isa_config_list, isa_config_entry);
    struct isa_config_entry {
            TAILQ_ENTRY(isa_config_entry) ice_link;
            int                     ice_priority;
            struct isa_config       ice_config;
    };
    
    /*
     * The structure used to attach devices to the isa bus.
     */
    struct isa_device {
            struct resource_list    id_resources;
            uint32_t                id_vendorid; /* pnp vendor id */
            uint32_t                id_serial; /* pnp serial */
            uint32_t                id_logicalid; /* pnp logical device id */
            uint32_t                id_compatid; /* pnp compat device id */
            struct isa_config_list  id_configs; /* pnp config alternatives */
            isa_config_cb           *id_config_cb; /* callback function */
            void                    *id_config_arg; /* callback argument */
            int                     id_config_attr; /* pnp config attributes */
            int                     id_pnpbios_handle; /* pnp handle, if any */
            int                     id_pnp_csn; /* pnp Card Number */
            int                     id_pnp_ldn; /* pnp Logical device on card */
            int                     id_order;
    };
    
    #define DEVTOISA(dev)   ((struct isa_device *) device_get_ivars(dev))
    
    /*
     * These functions are architecture dependent.
     */
    extern void isa_init(device_t dev);
    extern struct resource *isa_alloc_resource(device_t bus, device_t child,
        int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count,
        u_int flags);
    extern int isa_release_resource(device_t bus, device_t child,
        int type, int rid, struct resource *r);
    
    extern driver_t isa_driver;
    extern devclass_t isa_devclass;

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