epicsMMIODef.h File Reference

#include <epicsTypes.h>
#include <epicsEndian.h>
#include <shareLib.h>

Go to the source code of this file.

Macros
#define	rbarr()   do{}while(0)
	Explicit read memory barrier Prevents reordering of reads around it. More...
#define	wbarr()   do{}while(0)
	Explicit write memory barrier Prevents reordering of writes around it. More...
#define	rwbarr()   do{}while(0)
	Explicit read/write memory barrier Prevents reordering of reads or writes around it. More...
#define	be_ioread16(A)   nat_ioread16(A)
	Read two byte in big endian order. More...
#define	be_ioread32(A)   nat_ioread32(A)
	Read four byte in big endian order. More...
#define	be_iowrite16(A, D)   nat_iowrite16(A,D)
	Write two byte in big endian order. More...
#define	be_iowrite32(A, D)   nat_iowrite32(A,D)
	Write four byte in big endian order. More...
#define	le_ioread16(A)   bswap16(nat_ioread16(A))
	Read two byte in little endian order. More...
#define	le_ioread32(A)   bswap32(nat_ioread32(A))
	Read four byte in little endian order. More...
#define	le_iowrite16(A, D)   nat_iowrite16(A,bswap16(D))
	Write two byte in little endian order. More...
#define	le_iowrite32(A, D)   nat_iowrite32(A,bswap32(D))
	Write four byte in little endian order. More...
INLINE epicsUInt8	ioread8 (volatile void *addr)
	Read a single byte. More...
INLINE void	iowrite8 (volatile void *addr, epicsUInt8 val)
	Write a single byte. More...
INLINE epicsUInt16	nat_ioread16 (volatile void *addr)
	Read two bytes in host order. Not byte swapping. More...
INLINE void	nat_iowrite16 (volatile void *addr, epicsUInt16 val)
	Write two byte in host order. Not byte swapping. More...
INLINE epicsUInt32	nat_ioread32 (volatile void *addr)
	Read four bytes in host order. Not byte swapping. More...
INLINE void	nat_iowrite32 (volatile void *addr, epicsUInt32 val)
	Write four byte in host order. Not byte swapping. More...
INLINE epicsUInt16	bswap16 (epicsUInt16 value)
INLINE epicsUInt32	bswap32 (epicsUInt32 value)

Macro Definition Documentation

be_ioread16

#define be_ioread16

(

A

)

nat_ioread16(A)

Read two byte in big endian order.

be_ioread32

#define be_ioread32

(

A

)

nat_ioread32(A)

Read four byte in big endian order.

be_iowrite16

#define be_iowrite16	(		A,
			D
	)		nat_iowrite16(A,D)

Write two byte in big endian order.

be_iowrite32

#define be_iowrite32	(		A,
			D
	)		nat_iowrite32(A,D)

Write four byte in big endian order.

le_ioread16

#define le_ioread16

(

A

)

bswap16(nat_ioread16(A))

Read two byte in little endian order.

le_ioread32

#define le_ioread32

(

A

)

bswap32(nat_ioread32(A))

Read four byte in little endian order.

le_iowrite16

#define le_iowrite16	(		A,
			D
	)		nat_iowrite16(A,bswap16(D))

Write two byte in little endian order.

le_iowrite32

#define le_iowrite32	(		A,
			D
	)		nat_iowrite32(A,bswap32(D))

Write four byte in little endian order.

Function Documentation

bswap32()

INLINE epicsUInt32 bswap32

(

epicsUInt32

value

)

Definition at line 102 of file epicsMMIODef.h.

iowrite8()

INLINE void iowrite8	(	volatile void *	addr,
		epicsUInt8	val
	)

Write a single byte.

Definition at line 41 of file epicsMMIODef.h.

nat_ioread16()

INLINE epicsUInt16 nat_ioread16

(

volatile void *

addr

)

Read two bytes in host order. Not byte swapping.

Definition at line 51 of file epicsMMIODef.h.

nat_ioread32()

INLINE epicsUInt32 nat_ioread32

(

volatile void *

addr

)

Read four bytes in host order. Not byte swapping.

Definition at line 71 of file epicsMMIODef.h.

nat_iowrite16()

INLINE void nat_iowrite16	(	volatile void *	addr,
		epicsUInt16	val
	)

Write two byte in host order. Not byte swapping.

Definition at line 61 of file epicsMMIODef.h.

nat_iowrite32()

INLINE void nat_iowrite32	(	volatile void *	addr,
		epicsUInt32	val
	)

Write four byte in host order. Not byte swapping.

Definition at line 81 of file epicsMMIODef.h.