89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/****************************************************************************
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* libs/libc/hex2bin/lib_hex2mem.c
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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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <assert.h>
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#include <hex2bin.h>
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#include <nuttx/streams.h>
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#ifdef CONFIG_LIBC_HEX2BIN
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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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 (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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* 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, unsigned long baseaddr, unsigned long endpaddr,
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enum hex2bin_swap_e swap)
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{
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struct lib_rawinstream_s rawinstream;
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struct lib_memsostream_s memoutstream;
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/* Check memory addresses */
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DEBUGASSERT(fd >= 0 && endpaddr > baseaddr);
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/* Wrap the file descriptor as raw stream; wrap the memory as a memory
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* stream.
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*/
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lib_rawinstream(&rawinstream, fd);
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lib_memsostream(&memoutstream, (FAR char *)baseaddr,
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(int)(endpaddr - baseaddr));
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/* And do the deed */
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return hex2bin(&rawinstream.public, &memoutstream.public,
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(unsigned long)baseaddr, (unsigned long)endpaddr,
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(enum hex2bin_swap_e)swap);
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}
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#endif /* CONFIG_LIBC_HEX2BIN */
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