44 строки
981 B
C
44 строки
981 B
C
/*
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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);
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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;
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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)
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{
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if (sh_mv.mv_ioport_unmap)
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sh_mv.mv_ioport_unmap(addr);
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}
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EXPORT_SYMBOL(ioport_unmap);
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