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/*
* Copyright (C) 2006 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup genericmm
* @{
*/
/**
* @file
* @brief RAM disk support.
*
* Support for RAM disk images.
*/
#include <lib/rd.h>
#include <arch/byteorder.h>
int init_rd(rd_header * header)
{
/* Identify RAM disk */
if ((header->magic[0] != RD_MAG0) || (header->magic[1] != RD_MAG1) || (header->magic[2] != RD_MAG2) || (header->magic[3] != RD_MAG3))
return RE_INVALID;
/* Identify version */
if (header->version != RD_VERSION)
return RE_UNSUPPORTED;
uint64_t hsize;
switch (header->data_type) {
case RD_DATA_LSB:
hsize = uint64_t_le2host(header->header_size);
break;
// case RD_DATA_MSB:
// hsize = uint64_t_be2host(header->header_size);
// break;
default:
return RE_UNSUPPORTED;
}
return RE_OK;
}
/** @}
*/