text: /****************************************************************************
   * 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 */
  