device_if.m

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#-
# Copyright (c) 1998-2004 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.
#
# $FreeBSD$
#
 
#include <sys/bus.h>
 
INTERFACE device;
 
# Needed for timestamping device probe/attach calls
HEADER {
        #include <sys/tslog.h>
}
 
#
# Default implementations of some methods.
#
CODE {
        static int null_shutdown(device_t dev)
        {
            return 0;
        }
 
        static int null_suspend(device_t dev)
        {
            return 0;
        }
 
        static int null_resume(device_t dev)
        {
            return 0;
        }
 
        static int null_quiesce(device_t dev)
        {
            return 0;
        }
 
        static void * null_register(device_t dev)
        {
                return NULL;
        }
};
        
PROLOG {
        TSENTER2(device_get_name(dev));
}
EPILOG {
        TSEXIT2(device_get_name(dev));
}
METHOD int probe {
        device_t dev;
};
 
STATICMETHOD void identify {
        driver_t *driver;
        device_t parent;
};
 
PROLOG {
        TSENTER2(device_get_name(dev));
}
EPILOG {
        TSEXIT2(device_get_name(dev));
}
METHOD int attach {
        device_t dev;
};
 
METHOD int detach {
        device_t dev;
};
 
METHOD int shutdown {
        device_t dev;
} DEFAULT null_shutdown;
 
METHOD int suspend {
        device_t dev;
} DEFAULT null_suspend;
 
METHOD int resume {
        device_t dev;
} DEFAULT null_resume;
 
METHOD int quiesce {
        device_t dev;
} DEFAULT null_quiesce;
 
METHOD void * register {
        device_t dev;
} DEFAULT null_register;