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/****************************************************************************
* include/nuttx/mtd/smart.h
* Memory Technology Device (MTD) SMART specific interfaces
*
* Copyright (C) 2014 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.
*
****************************************************************************/
#ifndef __INCLUDE_NUTTX_MTD_SMART_H
#define __INCLUDE_NUTTX_MTD_SMART_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define SMART_DEBUG_CMD_SET_DEBUG_LEVEL 1
#define SMART_DEBUG_CMD_SHOW_LOGMAP 2
/****************************************************************************
* Public Types
****************************************************************************/
/* Structure to track SMART allocations for debugging */
#ifdef CONFIG_MTD_SMART_ALLOC_DEBUG
struct smart_alloc_s
{
size_t size; /* Size of the allocation */
void* ptr; /* Pointer to the data */
const char* name; /* Name of the allocation */
};
#endif
/* The following defines the procfs data passed from the SMART MTD layer
* from a BIOC_GETPROCFSD ioctl command.
*/
struct mtd_smart_procfs_data_s
{
uint16_t totalsectors; /* Total number of sectors on device */
uint16_t sectorsize; /* Size of each sector */
uint16_t freesectors; /* Number of free sectors */
uint16_t releasesectors; /* Number of released sectors */
uint16_t sectorsperblk; /* Number of sectors per erase block */
uint16_t formatsector; /* Physical sector number for sector 0 */
uint16_t dirsector; /* Physical sector number for sector 1 */
uint8_t namelen; /* Length of names on the volume */
uint8_t formatversion; /* Version of the volume format */
uint32_t unusedsectors; /* Number of unused sectors (free when erased) */
uint32_t blockerases; /* Number block erase operations */
#ifdef CONFIG_MTD_SMART_SECTOR_ERASE_DEBUG
FAR const uint8_t* erasecounts; /* Array of erase counts per erase block */
size_t neraseblocks; /* Number of erase blocks */
#endif
#ifdef CONFIG_MTD_SMART_ALLOC_DEBUG
FAR const struct smart_alloc_s *allocs; /* Array of allocations */
uint16_t alloccount; /* Number of items in the array */
#endif
#ifdef CONFIG_MTD_SMART_WEAR_LEVEL
uint32_t uneven_wearcount; /* Number of uneven block erases */
#endif
};
/* The following defines debug command data passed from the procfs layer to
the SMART MTD layer for debug purposes.
*/
struct mtd_smart_debug_data_s
{
uint8_t debugcmd; /* Debug command */
uint32_t debugdata; /* Debug data */
};
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#endif /* __INCLUDE_NUTTX_MTD_SMART_H */
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