forked from Archive/PX4-Autopilot
118 lines
4.1 KiB
C
118 lines
4.1 KiB
C
/****************************************************************************
|
|
* drivers/mtd/flash_eraseall.c
|
|
*
|
|
* Copyright (C) 2011 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 <errno.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/fs/fs.h>
|
|
#include <nuttx/fs/ioctl.h>
|
|
#include <nuttx/mtd.h>
|
|
|
|
/****************************************************************************
|
|
* Private Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: flash_eraseall
|
|
*
|
|
* Description:
|
|
* Call a block driver with the MDIOC_BULKERASE ioctl command. This will
|
|
* cause the MTD driver to erase all of the flash.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int flash_eraseall(FAR const char *driver)
|
|
{
|
|
FAR struct inode *inode;
|
|
FAR const struct block_operations *ops;
|
|
int ret;
|
|
|
|
/* Open the block driver */
|
|
|
|
ret = open_blockdriver(driver ,0, &inode);
|
|
if (ret < 0)
|
|
{
|
|
fdbg("ERROR: Failed to open '%s': %d\n", driver, ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Get the block operations */
|
|
|
|
ops = inode->u.i_bops;
|
|
|
|
/* Invoke the block driver ioctl method */
|
|
|
|
ret = -EPERM;
|
|
if (ops->ioctl)
|
|
{
|
|
ret = ops->ioctl(inode, MTDIOC_BULKERASE, 0);
|
|
if (ret < 0)
|
|
{
|
|
fdbg("ERROR: MTD ioctl(%04x) failed: %d\n", MTDIOC_BULKERASE, ret);
|
|
}
|
|
}
|
|
|
|
/* Close the block driver */
|
|
|
|
close_blockdriver(inode);
|
|
return ret;
|
|
}
|