2a3c53e66c
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3540 42af7a65-404d-4744-a932-0658087f49c3
112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/****************************************************************************
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* examples/nxffs/nxffs_main.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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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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/****************************************************************************
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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 <stdlib.h>
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#include <stdio.h>
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#include <nuttx/mtd.h>
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#include <nuttx/nxffs.h>
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* This must exactly match the default configuration in drivers/mtd/rammtd.c */
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#ifndef CONFIG_RAMMTD_BLOCKSIZE
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# define CONFIG_RAMMTD_BLOCKSIZE 512
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#endif
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#ifndef CONFIG_RAMMTD_ERASESIZE
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# define CONFIG_RAMMTD_ERASESIZE 4096
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#endif
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#ifndef CONFIG_EXAMPLES_NXFFS_NEBLOCKS
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# define CONFIG_EXAMPLES_NXFFS_NEBLOCKS (32)
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#endif
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#undef CONFIG_EXAMPLES_NXFFS_BUFSIZE
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#define CONFIG_EXAMPLES_NXFFS_BUFSIZE \
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(CONFIG_RAMMTD_ERASESIZE * CONFIG_EXAMPLES_NXFFS_NEBLOCKS)
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* Pre-allocated simulated flash */
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static uint8_t g_simflash[CONFIG_EXAMPLES_NXFFS_BUFSIZE];
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* user_start
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****************************************************************************/
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int user_start(int argc, char *argv[])
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{
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FAR struct mtd_dev_s *mtd;
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int ret;
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/* Create and initialize a RAM MTD device instance */
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mtd = rammtd_initialize(g_simflash, CONFIG_EXAMPLES_NXFFS_BUFSIZE);
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if (!mtd)
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{
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fprintf(stderr, "ERROR: Failed to create RAM MTD instance\n");
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exit(1);
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}
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/* Initialize to provide NXFFS on an MTD interface */
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ret = nxffs_initialize(mtd);
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if (ret < 0)
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{
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fprintf(stderr, "ERROR: NXFFS initialization failed: %d\n", -ret);
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exit(2);
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}
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return 0;
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}
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