167 lines
6.1 KiB
C
167 lines
6.1 KiB
C
/****************************************************************************
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* include/hex2bin.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_HEX2BIN_H
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#define __INCLUDE_HEX2BIN_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdio.h>
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#ifdef CONFIG_LIBC_HEX2BIN
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Intel HEX data streams are normally in big endian order. The following
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* enumeration selects other ordering.
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*/
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enum hex2bin_swap_e
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{
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HEX2BIN_NOSWAP = 0, /* No swap, stream is in the correct byte order */
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HEX2BIN_SWAP16 = 1, /* Swap bytes in 16-bit values */
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HEX2BIN_SWAP32 = 2 /* Swap bytes in 32-bit values */
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: hex2bin
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*
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* Description:
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* Read the Intel HEX ASCII data provided on the serial IN stream and write
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* the binary to the seek-able serial OUT stream.
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*
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* These streams may be files or, in another usage example, the IN stream
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* could be a serial port and the OUT stream could be a memory stream.
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* This would decode and write the serial input to memory.
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*
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* Input Parameters:
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* instream - The incoming stream from which Intel HEX data will be
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* received.
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* outstream - The outgoing stream in which binary data will be written.
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* baseaddr - The base address of the outgoing stream. Seeking in the
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* output stream will be relative to this address.
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* endpaddr - The end address (plus 1) of the outgoing stream. This
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* value is used only for range checking. endpaddr must
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* be larger than baseaddr. A zero value for endpaddr
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* disables range checking.
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* swap - Controls byte ordering. See enum hex2bin_swap_e for
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* description of the values.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is returned on
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* failure.
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*
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****************************************************************************/
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struct lib_instream_s;
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struct lib_sostream_s;
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int hex2bin(FAR struct lib_instream_s *instream,
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FAR struct lib_sostream_s *outstream, uint32_t baseaddr,
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uint32_t endpaddr, enum hex2bin_swap_e swap);
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/****************************************************************************
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* Name: hex2mem
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*
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* Description:
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* Read the Intel HEX ASCII data provided on the file descriptor 'fd' and
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* write the binary to memory.
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*
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* If, for example, fd is zero (corresponding to stdin), then the HEX
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* ASCII data would be taken from the console and written to memory.
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*
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* Input Parameters:
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* fd - The file descriptor from which Intel HEX data will be
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* received.
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* baseaddr - The base address of the memory region stream.
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* endpaddr - The end address (plus 1) of the memory region.
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* swap - Controls byte ordering. See enum hex2bin_swap_e for
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* description of the values.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is returned on
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* failure.
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*
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****************************************************************************/
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int hex2mem(int fd, uint32_t baseaddr, uint32_t endpaddr,
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enum hex2bin_swap_e swap);
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/****************************************************************************
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* Name: fhex2mem
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*
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* Description:
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* Read the Intel HEX ASCII data provided on the standard stream
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* 'instream' and write the binary to memory.
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*
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* If, for example, instream is stdin, then the HEX ASCII data would be
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* taken from the console and written to memory.
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*
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* Input Parameters:
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* instream - The incoming standard stream from which Intel HEX data
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* will be received.
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* baseaddr - The base address of the memory region stream.
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* endpaddr - The end address (plus 1) of the memory region.
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* swap - Controls byte ordering. See enum hex2bin_swap_e for
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* description of the values.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is returned on
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* failure.
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*
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****************************************************************************/
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int fhex2mem(FAR FILE *instream, uint32_t baseaddr, uint32_t endpaddr,
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enum hex2bin_swap_e swap);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_SYSTEM_HEX2BIN */
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#endif /* __INCLUDE_HEX2BIN_H */
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