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