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/************************************************************************************
* configs/olimex-lpc-h3131/tools/lpchdr.h
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* COPYRIGHT OWNER OR CONTRIBUTORS 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.
*
************************************************************************************/
#ifndef __CONFIGS_OLIMEX_LPC_H3131_TOOLS_LPCHDR_H
#define __CONFIGS_OLIMEX_LPC_H3131_TOOLS_LPCHDR_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <stdint.h>
/************************************************************************************
* Definitions
************************************************************************************/
/************************************************************************************
* Public Types
************************************************************************************/
struct lpc31_header_s
{
/* OFFS DESCRIPTION */
uint32_t vector; /* 0x00 Valid ARM instruction. Usually this will be
* a branch instruction to entry point of the
* image. */
uint32_t magic; /* 0x04 This field is used by boot ROM to detect a
* valid image header. This field should always
* be set to 0x41676d69. */
uint32_t execution_crc32; /* 0x08 CRC32 value of execution part of the image. If
* the �image_type� is set to �0xA�, this field
* is ignored by boot ROM. */
uint32_t Reserved0[4]; /* 0x0c-0x18: Should be zero. */
uint32_t imageType; /* 0x1c Specifies whether CRC check should be done
* on the image or not:
* 0xA � No CRC check required.
* 0xB � Do CRC32 check on both header and
* execution part of the image. */
uint32_t imageLength; /* 0x20 Total image length including header rounded
* up to the nearest 512 byte boundary. In C
* language the field can be computed as:
* imageLength = (Actual length + 511) & ~0x1FF; */
uint32_t releaseID; /* 0x24 Release or version number of the image. Note,
* this field is not used by boot ROM but is
* provided to track the image versions. */
uint32_t buildTime; /* 0x28 Time (expressed in EPOC time format) at which
* image is built. Note, this field is not used
* by boot ROM but is provided to track the image
* versions. */
uint32_t sbzBootParameter; /* 0x2c hould be zero. */
uint32_t cust_reserved[15]; /* 0x30-0x68: Reserved for customer use (60 bytes) */
uint32_t header_crc32; /* 0x6c CRC32 value of the header (bytes 0x00 to 0x6C
* of the image). If the �image_type� is set
* to �0xA�, this field is ignored by boot ROM. */
uint32_t Reserved1[4]; /* 0x70-0x7c: Should be zero. */
/* 0x80 Start of program code (128Kb max). The final
* image has to be padded to the nearest 512
* byte boundary */
};
/************************************************************************************
* Public data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
extern uint32_t crc32part(const uint8_t *src, size_t len, uint32_t crc32val);
extern uint32_t crc32(const uint8_t *src, size_t len);
#endif /* __CONFIGS_OLIMEX_LPC_H3131_TOOLS_LPCHDR_H */
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