0,0 → 1,84 |
/* |
* 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 |
*/ |
|
#ifndef KERN_RD_H_ |
#define KERN_RD_H_ |
|
#include <arch/types.h> |
|
/** |
* RAM disk version |
*/ |
#define RD_VERSION 1 |
|
/** |
* RAM disk magic number |
*/ |
#define RD_MAGIC_SIZE 4 |
#define RD_MAG0 'H' |
#define RD_MAG1 'O' |
#define RD_MAG2 'R' |
#define RD_MAG3 'D' |
|
/** |
* RAM disk data encoding types |
*/ |
#define RD_DATA_NONE 0 |
#define RD_DATA_LSB 1 /* Least significant byte first (little endian) */ |
#define RD_DATA_MSB 2 /* Most signigicant byte first (big endian) */ |
|
/** |
* RAM disk error return codes |
*/ |
#define RE_OK 0 /* No error */ |
#define RE_INVALID 1 /* Invalid RAM disk image */ |
#define RE_UNSUPPORTED 2 /* Non-supported image (e.g. wrong version) */ |
|
/** RAM disk header */ |
struct rd_header { |
uint8_t magic[RD_MAGIC_SIZE]; |
uint8_t version; |
uint8_t data_type; |
uint32_t header_size; |
uint64_t data_size; |
} __attribute__ ((packed)); |
|
typedef struct rd_header rd_header_t; |
|
extern int init_rd(rd_header_t *addr, size_t size); |
|
#endif |
|
/** @} |
*/ |