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/****************************************************************************
* fs/smartfs/smartfs_mksmartfs.c
*
* Copyright (C) 2013 Ken Pettit. All rights reserved.
* Author: Ken Pettit <pettitkd@gmail.com>
*
* 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 <string.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/kmalloc.h>
#include <nuttx/fs/fs.h>
#include <nuttx/fs/mksmartfs.h>
#include <nuttx/fs/ioctl.h>
#include <nuttx/fs/smart.h>
#include "smartfs.h"
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: mksmartfs
*
* Description:
* Make a SMART Flash file system image on the specified block device
*
* Inputs:
* pathname - the full path to a registered block driver
* nrootdirs - Number of root directory entries to create.
*
* Return:
* Zero (OK) on success; -1 (ERROR) on failure with errno set appropriately:
*
* EINVAL - NULL block driver string, bad number of FATS in 'fmt', bad FAT
* size in 'fmt', bad cluster size in 'fmt'
* ENOENT - 'pathname' does not refer to anything in the filesystem.
* ENOTBLK - 'pathname' does not refer to a block driver
* EACCES - block driver does not support wrie or geometry methods
*
* Assumptions:
* - The caller must assure that the block driver is not mounted and not in
* use when this function is called. The result of formatting a mounted
* device is indeterminate (but likely not good).
*
****************************************************************************/
#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
int mksmartfs(FAR const char *pathname, uint8_t nrootdirs)
#else
int mksmartfs(FAR const char *pathname)
#endif
{
struct inode* inode;
struct smart_format_s fmt;
int ret;
int x;
uint8_t type;
struct smart_read_write_s request;
/* Find the inode of the block driver indentified by 'source' */
ret = open_blockdriver(pathname, 0, &inode);
if (ret < 0)
{
fdbg("Failed to open %s\n", pathname);
goto errout;
}
/* Make sure that the inode supports the write and geometry methods at a minimum */
if (!inode->u.i_bops->write || !inode->u.i_bops->geometry)
{
fdbg("%s does not support write or geometry methods\n", pathname);
ret = -EACCES;
goto errout_with_driver;
}
/* Validate the block device is a SMART device */
/* Perform a low-level SMART format */
#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
ret = inode->u.i_bops->ioctl(inode, BIOC_LLFORMAT, nrootdirs);
#else
ret = inode->u.i_bops->ioctl(inode, BIOC_LLFORMAT, 0);
#endif
if (ret != OK)
{
fdbg("Error creating low-level format: %d\n", ret);
goto errout_with_driver;
}
/* Get the format information so we know how big the sectors are */
ret = inode->u.i_bops->ioctl(inode, BIOC_GETFORMAT, (unsigned long) &fmt);
/* Now Write the filesystem to media. Loop for each root dir entry and
* allocate the reserved Root Dir Enty, then write a blank root dir for it.
*/
type = SMARTFS_SECTOR_TYPE_DIR;
request.offset = 0;
request.count = 1;
request.buffer = &type;
x = 0;
#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
for (; x < nrootdirs; x++)
#endif
{
ret = inode->u.i_bops->ioctl(inode, BIOC_ALLOCSECT, SMARTFS_ROOT_DIR_SECTOR + x);
if (ret != SMARTFS_ROOT_DIR_SECTOR + x)
{
ret = -EIO;
goto errout_with_driver;
}
/* Mark this block as a directory entry */
request.logsector = SMARTFS_ROOT_DIR_SECTOR + x;
/* Issue a write to the sector, single byte */
ret = inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long) &request);
if (ret != 0)
{
ret = -EIO;
goto errout_with_driver;
}
}
errout_with_driver:
/* Close the driver */
(void)close_blockdriver(inode);
errout:
/* Release all allocated memory */
/* Return any reported errors */
if (ret < 0)
{
set_errno(-ret);
return ERROR;
}
return OK;
}
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