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/*
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* $Id$
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*
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* Bus driver interface
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* Copyright (C) 2002, 2003 ETC s.r.o.
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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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* 3. Neither the name of the ETC s.r.o. nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 COPYRIGHT OWNER 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 OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Written by Marcel Telka <marcel@telka.sk>, 2002, 2003.
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*
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*/
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#ifndef BRUX_BUS_H
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#define BRUX_BUS_H
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#include <stdint.h>
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typedef struct bus bus_t;
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struct bus {
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void *params;
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void (*prepare)( bus_t *bus );
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unsigned int (*width)( bus_t *bus, uint32_t adr );
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void (*read_start)( bus_t *bus, uint32_t adr );
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uint32_t (*read_next)( bus_t *bus, uint32_t adr );
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uint32_t (*read_end)( bus_t *bus );
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uint32_t (*read)( bus_t *bus, uint32_t adr );
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void (*write)( bus_t *bus, uint32_t adr, uint32_t data );
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void (*free)( bus_t *bus );
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};
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extern bus_t *bus;
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#define bus_prepare(bus) bus->prepare(bus)
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#define bus_width(bus,adr) bus->width(bus,adr)
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#define bus_read_start(bus,adr) bus->read_start(bus,adr)
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#define bus_read_next(bus,adr) bus->read_next(bus,adr)
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#define bus_read_end(bus) bus->read_end(bus)
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#define bus_read(bus,adr) bus->read(bus,adr)
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#define bus_write(bus,adr,data) bus->write(bus,adr,data)
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#define bus_free(bus) bus->free(bus)
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#endif /* BRUX_BUS_H */
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