74 lines
2.1 KiB
Objective-C
74 lines
2.1 KiB
Objective-C
#-
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# Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org>
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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 <machine/bus.h>
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INTERFACE pci_dw;
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/**
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* Read from dbi space.
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* The reg argument is a byte offset into dbi space.
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* The width argument (which should be 1, 2 or 4) specifies how
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* many bytes to read from that offset.
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*/
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METHOD uint32_t dbi_read{
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device_t dev;
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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 to dbi space.
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* The reg argument is a byte offset into dbi space.
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* The width argument (which should be 1, 2 or 4) specifies how
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* many bytes to write to that offset.
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*/
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METHOD void dbi_write{
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device_t dev;
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u_int reg;
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uint32_t value;
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int width;
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};
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/**
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* Start or stop link
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*/
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METHOD int set_link{
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device_t dev;
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bool start;
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};
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/**
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* Query link status (up/down)
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*/
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METHOD int get_link{
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device_t dev;
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bool *status;
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};
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