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Diffstat (limited to 'apps/examples/nxffs/nxffs_main.c')
-rw-r--r-- | apps/examples/nxffs/nxffs_main.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/apps/examples/nxffs/nxffs_main.c b/apps/examples/nxffs/nxffs_main.c new file mode 100644 index 0000000000..2e046a26f6 --- /dev/null +++ b/apps/examples/nxffs/nxffs_main.c @@ -0,0 +1,111 @@ +/**************************************************************************** + * examples/nxffs/nxffs_main.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <stdint.h> +#include <stdlib.h> +#include <stdio.h> + +#include <nuttx/mtd.h> +#include <nuttx/nxffs.h> + +/**************************************************************************** + * Definitions + ****************************************************************************/ +/* Configuration ************************************************************/ +/* This must exactly match the default configuration in drivers/mtd/rammtd.c */ + +#ifndef CONFIG_RAMMTD_BLOCKSIZE +# define CONFIG_RAMMTD_BLOCKSIZE 512 +#endif + +#ifndef CONFIG_RAMMTD_ERASESIZE +# define CONFIG_RAMMTD_ERASESIZE 4096 +#endif + +#ifndef CONFIG_EXAMPLES_NXFFS_NEBLOCKS +# define CONFIG_EXAMPLES_NXFFS_NEBLOCKS (32) +#endif + +#undef CONFIG_EXAMPLES_NXFFS_BUFSIZE +#define CONFIG_EXAMPLES_NXFFS_BUFSIZE \ + (CONFIG_RAMMTD_ERASESIZE * CONFIG_EXAMPLES_NXFFS_NEBLOCKS) + +/**************************************************************************** + * Private Data + ****************************************************************************/ +/* Pre-allocated simulated flash */ + +static uint8_t g_simflash[CONFIG_EXAMPLES_NXFFS_BUFSIZE]; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * user_start + ****************************************************************************/ + +int user_start(int argc, char *argv[]) +{ + FAR struct mtd_dev_s *mtd; + int ret; + + /* Create and initialize a RAM MTD device instance */ + + mtd = rammtd_initialize(g_simflash, CONFIG_EXAMPLES_NXFFS_BUFSIZE); + if (!mtd) + { + fprintf(stderr, "ERROR: Failed to create RAM MTD instance\n"); + exit(1); + } + + /* Initialize to provide NXFFS on an MTD interface */ + + ret = nxffs_initialize(mtd); + if (ret < 0) + { + fprintf(stderr, "ERROR: NXFFS initialization failed: %d\n", -ret); + exit(2); + } + + return 0; +} + |