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Diffstat (limited to 'apps/system/hex2bin/fhex2mem.c')
-rw-r--r-- | apps/system/hex2bin/fhex2mem.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/apps/system/hex2bin/fhex2mem.c b/apps/system/hex2bin/fhex2mem.c new file mode 100644 index 000000000..061d63e97 --- /dev/null +++ b/apps/system/hex2bin/fhex2mem.c @@ -0,0 +1,115 @@ +/**************************************************************************** + * apps/system/fhex2mem.c + * + * Copyright (C) 2014 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdio.h> +#include <assert.h> + +#include <nuttx/streams.h> +#include <apps/hex2bin.h> + +#ifdef CONFIG_SYSTEM_HEX2BIN + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name fhex2mem + * + * Description: + * Read the Intel HEX ASCII data provided on the standard stream + * 'instream' and write the binary to memory. + * + * If, for example, instream is stdin, then the HEX ASCII data would be + * taken from the console and written to memory. + * + * Input Parameters: + * instream - The incoming standard stream from which Intel HEX data + * will be received. + * baseaddr - The base address of the memory region stream. + * endpaddr - The end address (plus 1) of the memory region. + * swap - Controls byte ordering. See enum hex2bin_swap_e for + * description of the values. + * + * Returned Value + * Zero (OK) is returned on success; a negated errno value is returned on + * failure. + * + ****************************************************************************/ + +int fhex2mem(FAR FILE *instream, uint32_t baseaddr, uint32_t endpaddr, + enum hex2bin_swap_e swap) +{ + struct lib_stdinstream_s stdinstream; + struct lib_memsostream_s memoutstream; + + /* Check memory addresses */ + + DEBUGASSERT(instream && endpaddr > baseaddr); + + /* Wrap the file descriptor as raw stream; wrap the memory as a memory + * stream. + */ + + lib_stdinstream(&stdinstream, instream); + lib_memsostream(&memoutstream, (FAR char *)baseaddr, + (int)(endpaddr - baseaddr)); + + /* And do the deed */ + + return hex2bin(&stdinstream.public, &memoutstream.public, + (uint32_t)baseaddr, (uint32_t)endpaddr, + (enum hex2bin_swap_e)swap); +} + +#endif /* CONFIG_SYSTEM_HEX2BIN */ |