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