FreeBSD/Linux Kernel Cross Reference
sys/isa/isa_if.m

     #
     # 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.
    #
    # $FreeBSD$
    #
    
    CODE {
    #include <isa/isavar.h>
    };
    
    INTERFACE isa;
    
    #
    # Add a Plug-and-play configuration to the device. Configurations with 
    # a lower priority are preferred.
    #
    METHOD int add_config {
            device_t        dev;
            device_t        child;
            int             priority;
            struct isa_config *config;
    };
    
    #
    # Register a function which can be called to configure a device with
    # a given set of resources. The function will be called with a struct
    # isa_config representing the desired configuration and a flag to
    # state whether the device should be enabled.
    #
    METHOD void set_config_callback {
            device_t        dev;
            device_t        child;
            isa_config_cb   *fn;
            void            *arg;
    };
    
    #
    # A helper method for implementing probe methods for PnP compatible
    # drivers. The driver calls this method with a list of PnP ids and
    # descriptions and it returns zero if one of the ids matches or ENXIO
    # otherwise.
    # 
    # If the device is not plug-and-play compatible, this method returns
    # ENOENT, allowing the caller to fall back to heuristic probing
    # techniques.
    #  
    METHOD int pnp_probe {
            device_t        dev;
            device_t        child;
            struct isa_pnp_id *ids;
    };

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