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3.7.1
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arch
sh
kernel
ioport.c
Go to the documentation of this file.
1
/*
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* arch/sh/kernel/ioport.c
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*
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* Copyright (C) 2000 Niibe Yutaka
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* Copyright (C) 2005 - 2007 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/module.h>
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#include <
linux/io.h
>
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unsigned
long
sh_io_port_base
__read_mostly
= -1;
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EXPORT_SYMBOL
(sh_io_port_base);
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void
__iomem
*
__ioport_map
(
unsigned
long
addr
,
unsigned
int
size
)
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{
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if
(
sh_mv
.mv_ioport_map)
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return
sh_mv
.mv_ioport_map(addr, size);
21
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return
(
void
__iomem
*)(addr + sh_io_port_base);
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}
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EXPORT_SYMBOL
(
__ioport_map
);
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void
__iomem
*
ioport_map
(
unsigned
long
port
,
unsigned
int
nr
)
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{
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void
__iomem
*
ret
;
29
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ret =
__ioport_map_trapped
(port, nr);
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if
(ret)
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return
ret
;
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return
__ioport_map
(port, nr);
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}
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EXPORT_SYMBOL
(
ioport_map
);
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void
ioport_unmap
(
void
__iomem
*
addr
)
39
{
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if
(
sh_mv
.mv_ioport_unmap)
41
sh_mv
.mv_ioport_unmap(addr);
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}
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EXPORT_SYMBOL
(
ioport_unmap
);
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