c9bf4be3c2
non-device code. * Re-implement the method dispatch to improve efficiency. The new system takes about 40ns for a method dispatch on a 300Mhz PII which is only 10ns slower than a direct function call on the same hardware. This changes the new-bus ABI slightly so make sure you re-compile any driver modules which you use.
73 lines
2.4 KiB
Objective-C
73 lines
2.4 KiB
Objective-C
#
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# Copyright (c) 1999 Doug Rabson
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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#include <sys/bus.h>
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#include <isa/isavar.h>
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INTERFACE isa;
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#
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# Add a Plug-and-play configuration to the device. Configurations with
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# a lower priority are preferred.
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#
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METHOD int add_config {
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device_t dev;
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device_t child;
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int priority;
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struct isa_config *config;
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};
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#
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# Register a function which can be called to configure a device with
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# a given set of resources. The function will be called with a struct
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# isa_config representing the desired configuration and a flag to
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# state whether the device should be enabled.
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#
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METHOD void set_config_callback {
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device_t dev;
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device_t child;
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isa_config_cb *fn;
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void *arg;
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};
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#
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# A helper method for implementing probe methods for PnP compatible
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# drivers. The driver calls this method with a list of PnP ids and
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# descriptions and it returns zero if one of the ids matches or ENXIO
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# otherwise.
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#
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# If the device is not plug-and-play compatible, this method returns
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# ENOENT, allowing the caller to fall back to heuristic probing
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# techniques.
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#
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METHOD int pnp_probe {
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device_t dev;
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device_t child;
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struct isa_pnp_id *ids;
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};
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