blob: 7702d22e674cc15d494750fb8dbb00422a999bfe (
plain) (
tree)
|
|
/* Shm_Convert_address
*
* This routine takes into account the peculiar short VME address
* of the CVME961 board. The CVME961 maps short address space
* 0xffffxxxx to 0xb400xxxx.
*
* Input parameters:
* address - address to convert
*
* Output parameters:
* returns - converted address
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
#include "shm.h"
void *Shm_Convert_address(
void *address
)
{
rtems_unsigned32 workaddr = (rtems_unsigned32) address;
if ( workaddr >= 0xffff0000 )
workaddr = (workaddr & 0xffff) | 0xb4000000;
return ( (rtems_unsigned32 *)workaddr );
}
|