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386 lines
14 KiB
C
386 lines
14 KiB
C
/*
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* spiffs_config.h
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*
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* Created on: Jul 3, 2013
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* Author: petera
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*/
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#ifndef SPIFFS_CONFIG_H_
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#define SPIFFS_CONFIG_H_
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// ----------- 8< ------------
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// Following includes are for the linux test build of spiffs
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// These may/should/must be removed/altered/replaced in your target
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//#include <stdio.h>
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//#include <stdlib.h>
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//
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#include "printf.h"
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#include "string.h"
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#include "flashmem.h"
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//#include <stddef.h>
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//#include <unistd.h>
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// ----------- >8 ------------
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typedef int s32_t;
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typedef uint32_t u32_t;
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typedef int16_t s16_t;
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typedef uint16_t u16_t;
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typedef int8_t s8_t;
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typedef uint8_t u8_t;
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// compile time switches
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// Set generic spiffs debug output call.
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#ifndef SPIFFS_DBG
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#define SPIFFS_DBG(_f, ...) //Dbprintf(_f, ## __VA_ARGS__)
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#define SPIFFS_DBGF(str) SPIFFS_DBG(str,NULL)
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#endif
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// Set spiffs debug output call for garbage collecting.
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#ifndef SPIFFS_GC_DBG
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#define SPIFFS_GC_DBG(_f, ...) //Dbprintf(_f, ## __VA_ARGS__)
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#define SPIFFS_GC_DBGF(str) SPIFFS_GC_DBG(str,NULL)
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#endif
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// Set spiffs debug output call for caching.
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#ifndef SPIFFS_CACHE_DBG
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#define SPIFFS_CACHE_DBG(_f, ...) //Dbprintf(_f, ## __VA_ARGS__)
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#define SPIFFS_CACHE_DBGF(str) SPIFFS_CACHE_DBG(str,NULL)
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#endif
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// Set spiffs debug output call for system consistency checks.
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#ifndef SPIFFS_CHECK_DBG
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#define SPIFFS_CHECK_DBG(_f, ...) //Dbprintf(_f, ## __VA_ARGS__)
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#define SPIFFS_CHECK_DBGF(str) SPIFFS_CHECK_DBG(str,NULL)
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#endif
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// Set spiffs debug output call for all api invocations.
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#ifndef SPIFFS_API_DBG
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#define SPIFFS_API_DBG(_f, ...) //Dbprintf(_f, ## __VA_ARGS__)
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#define SPIFFS_API_DBGF(str) SPIFFS_API_DBG(str,NULL)
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#endif
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// Defines spiffs debug print formatters
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// some general signed number
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#ifndef _SPIPRIi
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#define _SPIPRIi "%d"
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#endif
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// address
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#ifndef _SPIPRIad
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#define _SPIPRIad "%08x"
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#endif
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// block
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#ifndef _SPIPRIbl
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#define _SPIPRIbl "%04x"
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#endif
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// page
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#ifndef _SPIPRIpg
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#define _SPIPRIpg "%04x"
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#endif
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// span index
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#ifndef _SPIPRIsp
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#define _SPIPRIsp "%04x"
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#endif
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// file descriptor
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#ifndef _SPIPRIfd
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#define _SPIPRIfd "%d"
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#endif
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// file object id
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#ifndef _SPIPRIid
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#define _SPIPRIid "%04x"
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#endif
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// file flags
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#ifndef _SPIPRIfl
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#define _SPIPRIfl "%02x"
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#endif
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// Enable/disable API functions to determine exact number of bytes
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// for filedescriptor and cache buffers. Once decided for a configuration,
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// this can be disabled to reduce flash.
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#ifndef SPIFFS_BUFFER_HELP
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#define SPIFFS_BUFFER_HELP 0
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#endif
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// Enables/disable memory read caching of nucleus file system operations.
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// If enabled, memory area must be provided for cache in SPIFFS_mount.
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#ifndef SPIFFS_CACHE
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#define SPIFFS_CACHE 1
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#endif
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#if SPIFFS_CACHE
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// Enables memory write caching for file descriptors in hydrogen
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#ifndef SPIFFS_CACHE_WR
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#define SPIFFS_CACHE_WR 1
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#endif
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// Enable/disable statistics on caching. Debug/test purpose only.
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#ifndef SPIFFS_CACHE_STATS
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#define SPIFFS_CACHE_STATS 0
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#endif
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#endif
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// Always check header of each accessed page to ensure consistent state.
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// If enabled it will increase number of reads, will increase flash.
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#ifndef SPIFFS_PAGE_CHECK
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#define SPIFFS_PAGE_CHECK 0
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#endif
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// Define maximum number of gc runs to perform to reach desired free pages.
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#ifndef SPIFFS_GC_MAX_RUNS
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#define SPIFFS_GC_MAX_RUNS 5
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#endif
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// Enable/disable statistics on gc. Debug/test purpose only.
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#ifndef SPIFFS_GC_STATS
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#define SPIFFS_GC_STATS 0
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#endif
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// Garbage collecting examines all pages in a block which and sums up
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// to a block score. Deleted pages normally gives positive score and
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// used pages normally gives a negative score (as these must be moved).
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// To have a fair wear-leveling, the erase age is also included in score,
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// whose factor normally is the most positive.
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// The larger the score, the more likely it is that the block will
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// picked for garbage collection.
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// Garbage collecting heuristics - weight used for deleted pages.
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#ifndef SPIFFS_GC_HEUR_W_DELET
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#define SPIFFS_GC_HEUR_W_DELET (5)
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#endif
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// Garbage collecting heuristics - weight used for used pages.
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#ifndef SPIFFS_GC_HEUR_W_USED
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#define SPIFFS_GC_HEUR_W_USED (-1)
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#endif
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// Garbage collecting heuristics - weight used for time between
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// last erased and erase of this block.
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#ifndef SPIFFS_GC_HEUR_W_ERASE_AGE
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#define SPIFFS_GC_HEUR_W_ERASE_AGE (50)
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#endif
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// Object name maximum length. Note that this length include the
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// zero-termination character, meaning maximum string of characters
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// can at most be SPIFFS_OBJ_NAME_LEN - 1.
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#ifndef SPIFFS_OBJ_NAME_LEN
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#define SPIFFS_OBJ_NAME_LEN (32)
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#endif
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// Maximum length of the metadata associated with an object.
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// Setting to non-zero value enables metadata-related API but also
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// changes the on-disk format, so the change is not backward-compatible.
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//
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// Do note: the meta length must never exceed
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// logical_page_size - (SPIFFS_OBJ_NAME_LEN + 64)
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//
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// This is derived from following:
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// logical_page_size - (SPIFFS_OBJ_NAME_LEN + sizeof(spiffs_page_header) +
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// spiffs_object_ix_header fields + at least some LUT entries)
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#ifndef SPIFFS_OBJ_META_LEN
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#define SPIFFS_OBJ_META_LEN (0)
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#endif
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// Size of buffer allocated on stack used when copying data.
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// Lower value generates more read/writes. No meaning having it bigger
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// than logical page size.
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#ifndef SPIFFS_COPY_BUFFER_STACK
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#define SPIFFS_COPY_BUFFER_STACK (256)
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#endif
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// Enable this to have an identifiable spiffs filesystem. This will look for
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// a magic in all sectors to determine if this is a valid spiffs system or
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// not on mount point. If not, SPIFFS_format must be called prior to mounting
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// again.
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#ifndef SPIFFS_USE_MAGIC
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#define SPIFFS_USE_MAGIC (0)
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#endif
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#if SPIFFS_USE_MAGIC
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// Only valid when SPIFFS_USE_MAGIC is enabled. If SPIFFS_USE_MAGIC_LENGTH is
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// enabled, the magic will also be dependent on the length of the filesystem.
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// For example, a filesystem configured and formatted for 4 megabytes will not
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// be accepted for mounting with a configuration defining the filesystem as 2
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// megabytes.
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#ifndef SPIFFS_USE_MAGIC_LENGTH
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#define SPIFFS_USE_MAGIC_LENGTH (0)
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#endif
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#endif
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// SPIFFS_LOCK and SPIFFS_UNLOCK protects spiffs from reentrancy on api level
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// These should be defined on a multithreaded system
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// define this to enter a mutex if you're running on a multithreaded system
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#ifndef SPIFFS_LOCK
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#define SPIFFS_LOCK(fs)
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#endif
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// define this to exit a mutex if you're running on a multithreaded system
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#ifndef SPIFFS_UNLOCK
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#define SPIFFS_UNLOCK(fs)
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#endif
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// Enable if only one spiffs instance with constant configuration will exist
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// on the target. This will reduce calculations, flash and memory accesses.
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// Parts of configuration must be defined below instead of at time of mount.
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#ifndef SPIFFS_SINGLETON
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#define SPIFFS_SINGLETON (1)
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#endif
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#if SPIFFS_SINGLETON
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// Instead of giving parameters in config struct, singleton build must
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// give parameters in defines below.
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#ifndef SPIFFS_CFG_PHYS_SZ
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#define SPIFFS_CFG_PHYS_SZ(ignore) (1024*128)
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#endif
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#ifndef SPIFFS_CFG_PHYS_ERASE_SZ
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#define SPIFFS_CFG_PHYS_ERASE_SZ(ignore) (4*1024)
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#endif
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#ifndef SPIFFS_CFG_PHYS_ADDR
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#define SPIFFS_CFG_PHYS_ADDR(ignore) (0)
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#endif
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#ifndef SPIFFS_CFG_LOG_PAGE_SZ
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#define SPIFFS_CFG_LOG_PAGE_SZ(ignore) (256)
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#endif
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#ifndef SPIFFS_CFG_LOG_BLOCK_SZ
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#define SPIFFS_CFG_LOG_BLOCK_SZ(ignore) (4*1024)
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#endif
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#endif
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// Enable this if your target needs aligned data for index tables
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#ifndef SPIFFS_ALIGNED_OBJECT_INDEX_TABLES
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#define SPIFFS_ALIGNED_OBJECT_INDEX_TABLES 1
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#endif
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// Enable this if you want the HAL callbacks to be called with the spiffs struct
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#ifndef SPIFFS_HAL_CALLBACK_EXTRA
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#define SPIFFS_HAL_CALLBACK_EXTRA 0
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#endif
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// Enable this if you want to add an integer offset to all file handles
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// (spiffs_file). This is useful if running multiple instances of spiffs on
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// same target, in order to recognise to what spiffs instance a file handle
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// belongs.
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// NB: This adds config field fh_ix_offset in the configuration struct when
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// mounting, which must be defined.
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#ifndef SPIFFS_FILEHDL_OFFSET
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#define SPIFFS_FILEHDL_OFFSET 0
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#endif
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// Enable this to compile a read only version of spiffs.
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// This will reduce binary size of spiffs. All code comprising modification
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// of the file system will not be compiled. Some config will be ignored.
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// HAL functions for erasing and writing to spi-flash may be null. Cache
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// can be disabled for even further binary size reduction (and ram savings).
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// Functions modifying the fs will return SPIFFS_ERR_RO_NOT_IMPL.
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// If the file system cannot be mounted due to aborted erase operation and
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// SPIFFS_USE_MAGIC is enabled, SPIFFS_ERR_RO_ABORTED_OPERATION will be
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// returned.
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// Might be useful for e.g. bootloaders and such.
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#ifndef SPIFFS_READ_ONLY
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#define SPIFFS_READ_ONLY 0
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#endif
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// Enable this to add a temporal file cache using the fd buffer.
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// The effects of the cache is that SPIFFS_open will find the file faster in
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// certain cases. It will make it a lot easier for spiffs to find files
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// opened frequently, reducing number of readings from the spi flash for
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// finding those files.
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// This will grow each fd by 6 bytes. If your files are opened in patterns
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// with a degree of temporal locality, the system is optimized.
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// Examples can be letting spiffs serve web content, where one file is the css.
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// The css is accessed for each html file that is opened, meaning it is
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// accessed almost every second time a file is opened. Another example could be
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// a log file that is often opened, written, and closed.
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// The size of the cache is number of given file descriptors, as it piggybacks
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// on the fd update mechanism. The cache lives in the closed file descriptors.
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// When closed, the fd know the whereabouts of the file. Instead of forgetting
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// this, the temporal cache will keep handling updates to that file even if the
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// fd is closed. If the file is opened again, the location of the file is found
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// directly. If all available descriptors become opened, all cache memory is
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// lost.
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#ifndef SPIFFS_TEMPORAL_FD_CACHE
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#define SPIFFS_TEMPORAL_FD_CACHE 1
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#endif
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// Temporal file cache hit score. Each time a file is opened, all cached files
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// will lose one point. If the opened file is found in cache, that entry will
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// gain SPIFFS_TEMPORAL_CACHE_HIT_SCORE points. One can experiment with this
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// value for the specific access patterns of the application. However, it must
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// be between 1 (no gain for hitting a cached entry often) and 255.
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#ifndef SPIFFS_TEMPORAL_CACHE_HIT_SCORE
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#define SPIFFS_TEMPORAL_CACHE_HIT_SCORE 4
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#endif
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// Enable to be able to map object indices to memory.
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// This allows for faster and more deterministic reading if cases of reading
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// large files and when changing file offset by seeking around a lot.
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// When mapping a file's index, the file system will be scanned for index pages
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// and the info will be put in memory provided by user. When reading, the
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// memory map can be looked up instead of searching for index pages on the
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// medium. This way, user can trade memory against performance.
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// Whole, parts of, or future parts not being written yet can be mapped. The
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// memory array will be owned by spiffs and updated accordingly during garbage
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// collecting or when modifying the indices. The latter is invoked by when the
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// file is modified in some way. The index buffer is tied to the file
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// descriptor.
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#ifndef SPIFFS_IX_MAP
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#define SPIFFS_IX_MAP 1
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#endif
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// By default SPIFFS in some cases relies on the property of NOR flash that bits
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// cannot be set from 0 to 1 by writing and that controllers will ignore such
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// bit changes. This results in fewer reads as SPIFFS can in some cases perform
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// blind writes, with all bits set to 1 and only those it needs reset set to 0.
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// Most of the chips and controllers allow this behavior, so the default is to
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// use this technique. If your controller is one of the rare ones that don't,
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// turn this option on and SPIFFS will perform a read-modify-write instead.
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#ifndef SPIFFS_NO_BLIND_WRITES
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#define SPIFFS_NO_BLIND_WRITES 0
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#endif
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// Set SPIFFS_TEST_VISUALISATION to non-zero to enable SPIFFS_vis function
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// in the api. This function will visualize all filesystem using given printf
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// function.
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#ifndef SPIFFS_TEST_VISUALISATION
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#define SPIFFS_TEST_VISUALISATION 0
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#endif
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#if SPIFFS_TEST_VISUALISATION
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#ifndef spiffs_printf
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#define spiffs_printf(...) Dbprintf(__VA_ARGS__)
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#endif
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// spiffs_printf argument for a free page
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#ifndef SPIFFS_TEST_VIS_FREE_STR
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#define SPIFFS_TEST_VIS_FREE_STR "_"
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#endif
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// spiffs_printf argument for a deleted page
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#ifndef SPIFFS_TEST_VIS_DELE_STR
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#define SPIFFS_TEST_VIS_DELE_STR "/"
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#endif
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// spiffs_printf argument for an index page for given object id
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#ifndef SPIFFS_TEST_VIS_INDX_STR
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#define SPIFFS_TEST_VIS_INDX_STR(id) "i"
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#endif
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// spiffs_printf argument for a data page for given object id
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#ifndef SPIFFS_TEST_VIS_DATA_STR
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#define SPIFFS_TEST_VIS_DATA_STR(id) "d"
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#endif
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#endif
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// Types depending on configuration such as the amount of flash bytes
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// given to spiffs file system in total (spiffs_file_system_size),
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// the logical block size (log_block_size), and the logical page size
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// (log_page_size)
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// Block index type. Make sure the size of this type can hold
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// the highest number of all blocks - i.e. spiffs_file_system_size / log_block_size
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typedef u16_t spiffs_block_ix;
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// Page index type. Make sure the size of this type can hold
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// the highest page number of all pages - i.e. spiffs_file_system_size / log_page_size
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typedef u16_t spiffs_page_ix;
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// Object id type - most significant bit is reserved for index flag. Make sure the
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// size of this type can hold the highest object id on a full system,
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// i.e. 2 + (spiffs_file_system_size / (2*log_page_size))*2
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typedef u16_t spiffs_obj_id;
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// Object span index type. Make sure the size of this type can
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// hold the largest possible span index on the system -
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// i.e. (spiffs_file_system_size / log_page_size) - 1
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typedef u16_t spiffs_span_ix;
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#endif /* SPIFFS_CONFIG_H_ */
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