readramrom.c
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/**************************************************************************
* *
* Copyright (C) 1995, Silicon Graphics, Inc. *
* *
* These coded instructions, statements, and computer programs contain *
* unpublished proprietary information of Silicon Graphics, Inc., and *
* are protected by Federal copyright law. They may not be disclosed *
* to third parties or copied or duplicated in any form, in whole or *
* in part, without the prior written consent of Silicon Graphics, Inc. *
* *
**************************************************************************/
#include <ultrahost.h>
#include <PR/ramrom.h>
#include <sys/u64gio.h>
#include <stdio.h>
#ifndef WIN32
#include <sys/ioctl.h>
#endif
/*
* Name: uhReadRamrom
*
* Description:
* Copy nbytes of data from the ramrom location, addr.
*/
int
uhReadRamrom(int fd, void *ramrom_addr, void *data, int nbytes)
{
u64_read_arg_t readArg;
readArg.buffer = data;
readArg.ramrom_addr = (long)ramrom_addr;
readArg.nbytes = nbytes;
/*
* Copy the data from RAMROM to main memory.
*/
if (ioctl(fd, U64_SAFE_READ, &readArg) == -1)
return(-1);
return(0);
}