245 lines
8.6 KiB
C
245 lines
8.6 KiB
C
/****************************************************************************
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* include/hex2bin.h
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*
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* Copyright (C) 2014, 2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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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#ifdef CONFIG_LIB_HEX2BIN
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Some environments may return CR as end-of-line, others LF, and others
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* both. If not specified, the logic here assumes either (but not both) as
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* the default.
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*/
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#if defined(CONFIG_EOL_IS_CR)
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# undef CONFIG_EOL_IS_LF
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# undef CONFIG_EOL_IS_BOTH_CRLF
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# undef CONFIG_EOL_IS_EITHER_CRLF
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#elif defined(CONFIG_EOL_IS_LF)
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# undef CONFIG_EOL_IS_CR
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# undef CONFIG_EOL_IS_BOTH_CRLF
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# undef CONFIG_EOL_IS_EITHER_CRLF
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#elif defined(CONFIG_EOL_IS_BOTH_CRLF)
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# undef CONFIG_EOL_IS_CR
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# undef CONFIG_EOL_IS_LF
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# undef CONFIG_EOL_IS_EITHER_CRLF
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#elif defined(CONFIG_EOL_IS_EITHER_CRLF)
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# undef CONFIG_EOL_IS_CR
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# undef CONFIG_EOL_IS_LF
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# undef CONFIG_EOL_IS_BOTH_CRLF
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#else
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# undef CONFIG_EOL_IS_CR
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# undef CONFIG_EOL_IS_LF
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# undef CONFIG_EOL_IS_BOTH_CRLF
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# define CONFIG_EOL_IS_EITHER_CRLF 1
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Intel HEX data steams 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. This
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* 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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/****************************************************************************
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* Name: hex2bin_main
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*
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* Description:
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* Main entry point when hex2bin is built as an NSH built-in task.
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*
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* Input Parameters:
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* Standard task inputs
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*
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* Returned Value
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* EXIT_SUCESS on success; EXIT_FAILURE on failure
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*
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****************************************************************************/
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#ifdef CONFIG_SYSTEM_HEX2BIN_BUILTIN
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int hex2bin_main(int argc, char **argv);
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#endif /* CONFIG_SYSTEM_HEX2BIN_BUILTIN */
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/****************************************************************************
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* Name: hex2mem_main
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*
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* Description:
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* Main entry point when hex2mem is built as an NSH built-in task.
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*
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* Input Parameters:
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* Standard task inputs
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*
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* Returned Value
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* EXIT_SUCESS on success; EXIT_FAILURE on failure
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*
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****************************************************************************/
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#ifdef CONFIG_SYSTEM_HEX2MEM_BUILTIN
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int hex2mem_main(int argc, char **argv);
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#endif /* CONFIG_SYSTEM_HEX2MEM_BUILTIN */
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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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