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https://github.com/freebsd/freebsd-src
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bea2bf458d
Do like bus_space(9) does. This fixes the build on platforms where
bus_addr_t and bus_size_t are different (like i386 PAE).
Reviewed by: jhibbits
Fixes: c2e9c5bbf0 tpm: Refactor TIS and add a SPI attachment
Differential Revision: https://reviews.freebsd.org/D45287
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*-
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* Copyright (c) 2023 Juniper Networks, Inc.
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <sys/bus.h>
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#include "tpm_if.h"
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#include "tpm20.h"
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/* Override accessors */
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static uint8_t
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tpm_read_1(device_t dev, bus_size_t off)
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{
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struct tpm_sc *sc = device_get_softc(dev);
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return (bus_read_1(sc->mem_res, off));
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}
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static uint32_t
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tpm_read_4(device_t dev, bus_size_t off)
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{
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struct tpm_sc *sc = device_get_softc(dev);
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return (bus_read_4(sc->mem_res, off));
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}
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/*
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* Only i386 is missing bus_space_read_8.
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*/
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#ifndef __i386__
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static uint64_t
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tpm_read_8(device_t dev, bus_size_t off)
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{
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struct tpm_sc *sc = device_get_softc(dev);
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return (bus_read_8(sc->mem_res, off));
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}
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#endif
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static void
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tpm_write_1(device_t dev, bus_size_t off, uint8_t val)
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{
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struct tpm_sc *sc = device_get_softc(dev);
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bus_write_1(sc->mem_res, off, val);
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}
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static void
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tpm_write_4(device_t dev, bus_size_t off, uint32_t val)
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{
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struct tpm_sc *sc = device_get_softc(dev);
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bus_write_4(sc->mem_res, off, val);
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}
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static void
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tpm_write_barrier(device_t dev, bus_size_t off, bus_size_t length)
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{
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struct tpm_sc *sc = device_get_softc(dev);
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bus_barrier(sc->mem_res, off, length, BUS_SPACE_BARRIER_WRITE);
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}
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static device_method_t tpm_bus_methods[] = {
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DEVMETHOD(tpm_read_1, tpm_read_1),
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DEVMETHOD(tpm_read_4, tpm_read_4),
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#ifndef __i386__
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DEVMETHOD(tpm_read_8, tpm_read_8),
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#endif
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DEVMETHOD(tpm_write_1, tpm_write_1),
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DEVMETHOD(tpm_write_4, tpm_write_4),
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DEVMETHOD(tpm_write_barrier, tpm_write_barrier),
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DEVMETHOD_END
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};
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DEFINE_CLASS_0(tpm_lbc, tpm_bus_driver, tpm_bus_methods, sizeof(struct tpm_sc));
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