689634a3ea
like the args to the config space accessors these functions replaced. This reduces the likelyhood of overflow when the args are used in macros on the alpha. This prevents memory management faults when probing the pci bus on sables, multias and nonames. Approved by: dfr Tested by: Bernd Walter <ticso@cicely8.cicely.de>
82 lines
2.5 KiB
Objective-C
82 lines
2.5 KiB
Objective-C
#
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# Copyright (c) 2000 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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INTERFACE pcib;
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#
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# Return the number of slots on the attached PCI bus.
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#
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METHOD int maxslots {
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device_t dev;
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};
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#
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# Read configuration space on the PCI bus. The bus, slot and func
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# arguments determine the device which is being read and the reg
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# argument is a byte offset into configuration space for that
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# device. The width argument (which should be 1, 2 or 4) specifies how
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# many byte of configuration space to read from that offset.
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#
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METHOD u_int32_t read_config {
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device_t dev;
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u_int bus;
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u_int slot;
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u_int func;
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u_int reg;
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int width;
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};
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#
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# Write configuration space on the PCI bus. The bus, slot and func
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# arguments determine the device which is being written and the reg
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# argument is a byte offset into configuration space for that
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# device. The value field is written to the configuration space, with
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# the number of bytes written depending on the width argument.
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#
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METHOD void write_config {
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device_t dev;
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u_int bus;
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u_int slot;
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u_int func;
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u_int reg;
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u_int32_t value;
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int width;
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};
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#
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# Route an interrupt. Returns a value suitable for stuffing into
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# a device's interrupt register.
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#
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METHOD int route_interrupt {
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device_t dev;
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int device;
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int pin;
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};
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