mrfIoOps.h

 
#ifndef MRFIOOPS_H
#define MRFIOOPS_H
 
#include <epicsEndian.h>
 
#if defined(_ARCH_PPC) || defined(__PPC__) || defined(__PPC)
#  include <libcpu/io.h>
 
/*NOTE: All READ/WRITE operations have an implicit read or write barrier */
 
#  define ioread8(A)         in_8((volatile epicsUInt8*)(A))
#  define iowrite8(A,D)      out_8((volatile epicsUInt8*)(A), D)
#  define le_ioread16(A)     in_le16((volatile epicsUInt16*)(A))
#  define le_ioread32(A)     in_le32((volatile epicsUInt32*)(A))
#  define le_iowrite16(A,D)  out_le16((volatile epicsUInt16*)(A), D)
#  define le_iowrite32(A,D)  out_le32((volatile epicsUInt32*)(A), D)
#  define be_ioread16(A)     in_be16((volatile epicsUInt16*)(A))
#  define be_ioread32(A)     in_be32((volatile epicsUInt32*)(A))
#  define be_iowrite16(A,D)  out_be16((volatile epicsUInt16*)(A), D)
#  define be_iowrite32(A,D)  out_be32((volatile epicsUInt32*)(A), D)
 
#  define rbarr()  iobarrier_r()
#  define wbarr()  iobarrier_w()
#  define rwbarr() iobarrier_rw()
 
/* Define native operations */
#  define nat_ioread16  be_ioread16
#  define nat_ioread32  be_ioread32
#  define nat_iowrite16 be_iowrite16
#  define nat_iowrite32 be_iowrite32
 
#elif defined(i386) ||defined(__i386__) || defined(__i386)
 
/* X86 does not need special handling for read/write width.
 *
 * TODO: Memory barriers?
 */
 
#include "mrfIoOpsDef.h"
 
#else
#  warning I/O operations not defined for this RTEMS architecture
 
#include "mrfIoOpsDef.h"
 
#endif /* if defined PPC */
 
#endif /* MRFIOOPS_H */