72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
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/*
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* Copyright 2004-2010 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef _BFIN_IO_H
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#define _BFIN_IO_H
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <asm/byteorder.h>
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#define DECLARE_BFIN_RAW_READX(size, type, asm, asm_sign) \
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static inline type __raw_read##size(const volatile void __iomem *addr) \
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{ \
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unsigned int val; \
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int tmp; \
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__asm__ __volatile__ ( \
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"cli %1;" \
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"NOP; NOP; SSYNC;" \
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"%0 = "#asm" [%2] "#asm_sign";" \
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"sti %1;" \
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: "=d"(val), "=d"(tmp) \
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: "a"(addr) \
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); \
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return (type) val; \
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}
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DECLARE_BFIN_RAW_READX(b, u8, b, (z))
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#define __raw_readb __raw_readb
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DECLARE_BFIN_RAW_READX(w, u16, w, (z))
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#define __raw_readw __raw_readw
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DECLARE_BFIN_RAW_READX(l, u32, , )
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#define __raw_readl __raw_readl
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extern void outsb(unsigned long port, const void *addr, unsigned long count);
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extern void outsw(unsigned long port, const void *addr, unsigned long count);
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extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
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extern void outsl(unsigned long port, const void *addr, unsigned long count);
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#define outsb outsb
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#define outsw outsw
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#define outsl outsl
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extern void insb(unsigned long port, void *addr, unsigned long count);
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extern void insw(unsigned long port, void *addr, unsigned long count);
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extern void insw_8(unsigned long port, void *addr, unsigned long count);
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extern void insl(unsigned long port, void *addr, unsigned long count);
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extern void insl_16(unsigned long port, void *addr, unsigned long count);
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#define insb insb
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#define insw insw
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#define insl insl
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extern void dma_outsb(unsigned long port, const void *addr, unsigned short count);
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extern void dma_outsw(unsigned long port, const void *addr, unsigned short count);
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extern void dma_outsl(unsigned long port, const void *addr, unsigned short count);
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extern void dma_insb(unsigned long port, void *addr, unsigned short count);
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extern void dma_insw(unsigned long port, void *addr, unsigned short count);
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extern void dma_insl(unsigned long port, void *addr, unsigned short count);
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/**
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* I/O write barrier
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*
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* Ensure ordering of I/O space writes. This will make sure that writes
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* following the barrier will arrive after all previous writes.
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*/
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#define mmiowb() do { SSYNC(); wmb(); } while (0)
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#include <asm-generic/io.h>
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#endif
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