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SmartFS: Implements wear-leveling in the SmartFS. From Ken Pettit

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This commit is contained in:
Gregory Nutt 2014-12-09 14:11:15 -06:00
parent 69cb752813
commit cdc8fc52d1
12 changed files with 4382 additions and 518 deletions
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6
include/nuttx/fs/ioctl.h
View file

@ -200,6 +200,12 @@
* ProcFS data.
* OUT: None (ioctl return value provides
* success/failure indication). */
#define BIOC_DEBUGCMD _BIOC(0x000B) /* Send driver specific debug command /
* data to the block device.
* IN: Pointer to a struct defined for
* the block with specific debug
* command and data.
* OUT: None. */
/* NuttX MTD driver ioctl definitions ***************************************/

14
include/nuttx/fs/smart.h
View file

@ -89,6 +89,20 @@ struct smart_read_write_s
const uint8_t *buffer; /* Pointer to the data to write */
};
/* The following defines the procfs data exchange interface between the
* SMART MTD and FS layers.
*/
#if defined(CONFIG_FS_PROCFS) && !defined(CONFIG_FS_PROCFS_EXCLUDE_SMARTFS)
struct smart_procfs_data_s
{
#ifdef CONFIG_MTD_SMART_ERASE_DEBUG
const uint16_t *erasecounts; /* Pointer to the erase counts array */
uint16_t erasesize; /* Number of entries in the erase counts array */
#endif
};
#endif
/****************************************************************************
* Public Data
****************************************************************************/

16
include/nuttx/mtd/smart.h
View file

@ -50,6 +50,9 @@
* Pre-Processor Definitions
****************************************************************************/
#define SMART_DEBUG_CMD_SET_DEBUG_LEVEL 1
#define SMART_DEBUG_CMD_SHOW_LOGMAP 2
/****************************************************************************
* Public Types
****************************************************************************/
@ -91,6 +94,19 @@ struct mtd_smart_procfs_data_s
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 */
};
/****************************************************************************