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me-no-dev
2017-09-12 09:40:52 +03:00
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94
tools/sdk/include/spiffs/esp_spiffs.h Normal file
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// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _ESP_SPIFFS_H_
#define _ESP_SPIFFS_H_
#include <stdbool.h>
#include "esp_err.h"
/**
* @brief Configuration structure for esp_vfs_spiffs_register
*/
typedef struct {
const char* base_path; /*!< File path prefix associated with the filesystem. */
const char* partition_label; /*!< Optional, label of SPIFFS partition to use. If set to NULL, first partition with subtype=spiffs will be used. */
size_t max_files; /*!< Maximum files that could be open at the same time. */
bool format_if_mount_failed; /*!< If true, it will format the file system if it fails to mount. */
} esp_vfs_spiffs_conf_t;
/**
* Register and mount SPIFFS to VFS with given path prefix.
*
* @param conf Pointer to esp_vfs_spiffs_conf_t configuration structure
*
* @return
* - ESP_OK if success
* - ESP_ERR_NO_MEM if objects could not be allocated
* - ESP_ERR_INVALID_STATE if already mounted or partition is encrypted
* - ESP_ERR_NOT_FOUND if partition for SPIFFS was not found
* - ESP_FAIL if mount or format fails
*/
esp_err_t esp_vfs_spiffs_register(const esp_vfs_spiffs_conf_t * conf);
/**
* Unregister and unmount SPIFFS from VFS
*
* @param partition_label Optional, label of the partition to unregister.
* If not specified, first partition with subtype=spiffs is used.
*
* @return
* - ESP_OK if successful
* - ESP_ERR_INVALID_STATE already unregistered
*/
esp_err_t esp_vfs_spiffs_unregister(const char* partition_label);
/**
* Check if SPIFFS is mounted
*
* @param partition_label Optional, label of the partition to check.
* If not specified, first partition with subtype=spiffs is used.
*
* @return
* - true if mounted
* - false if not mounted
*/
bool esp_spiffs_mounted(const char* partition_label);
/**
* Format the SPIFFS partition
*
* @param partition_label Optional, label of the partition to format.
* If not specified, first partition with subtype=spiffs is used.
* @return
* - ESP_OK if successful
* - ESP_FAIL on error
*/
esp_err_t esp_spiffs_format(const char* partition_label);
/**
* Get information for SPIFFS
*
* @param partition_label Optional, label of the partition to get info for.
* If not specified, first partition with subtype=spiffs is used.
* @param[out] total_bytes Size of the file system
* @param[out] used_bytes Current used bytes in the file system
*
* @return
* - ESP_OK if success
* - ESP_ERR_INVALID_STATE if not mounted
*/
esp_err_t esp_spiffs_info(const char* partition_label, size_t *total_bytes, size_t *used_bytes);
#endif /* _ESP_SPIFFS_H_ */

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