kopia lustrzana https://github.com/espressif/esp-idf
357 wiersze
16 KiB
C
357 wiersze
16 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <stddef.h>
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#include "esp_err.h"
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#include "driver/gpio.h"
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#include "driver/sdmmc_types.h"
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#include "driver/sdspi_host.h"
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#include "ff.h"
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#include "wear_levelling.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Register FATFS with VFS component
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*
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* This function registers given FAT drive in VFS, at the specified base path.
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* If only one drive is used, fat_drive argument can be an empty string.
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* Refer to FATFS library documentation on how to specify FAT drive.
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* This function also allocates FATFS structure which should be used for f_mount
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* call.
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*
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* @note This function doesn't mount the drive into FATFS, it just connects
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* POSIX and C standard library IO function with FATFS. You need to mount
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* desired drive into FATFS separately.
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*
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* @param base_path path prefix where FATFS should be registered
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* @param fat_drive FATFS drive specification; if only one drive is used, can be an empty string
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* @param max_files maximum number of files which can be open at the same time
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* @param[out] out_fs pointer to FATFS structure which can be used for FATFS f_mount call is returned via this argument.
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_register was already called
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* - ESP_ERR_NO_MEM if not enough memory or too many VFSes already registered
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*/
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esp_err_t esp_vfs_fat_register(const char* base_path, const char* fat_drive,
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size_t max_files, FATFS** out_fs);
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/**
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* @brief Un-register FATFS from VFS
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*
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* @note FATFS structure returned by esp_vfs_fat_register is destroyed after
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* this call. Make sure to call f_mount function to unmount it before
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* calling esp_vfs_fat_unregister_ctx.
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* Difference between this function and the one above is that this one
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* will release the correct drive, while the one above will release
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* the last registered one
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*
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* @param base_path path prefix where FATFS is registered. This is the same
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* used when esp_vfs_fat_register was called
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if FATFS is not registered in VFS
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*/
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esp_err_t esp_vfs_fat_unregister_path(const char* base_path);
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/**
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* @brief Configuration arguments for esp_vfs_fat_sdmmc_mount and esp_vfs_fat_spiflash_mount_rw_wl functions
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*/
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typedef struct {
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/**
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* If FAT partition can not be mounted, and this parameter is true,
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* create partition table and format the filesystem.
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*/
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bool format_if_mount_failed;
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int max_files; ///< Max number of open files
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/**
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* If format_if_mount_failed is set, and mount fails, format the card
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* with given allocation unit size. Must be a power of 2, between sector
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* size and 128 * sector size.
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* For SD cards, sector size is always 512 bytes. For wear_levelling,
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* sector size is determined by CONFIG_WL_SECTOR_SIZE option.
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*
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* Using larger allocation unit size will result in higher read/write
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* performance and higher overhead when storing small files.
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*
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* Setting this field to 0 will result in allocation unit set to the
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* sector size.
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*/
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size_t allocation_unit_size;
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/**
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* Enables real ff_disk_status function implementation for SD cards
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* (ff_sdmmc_status). Possibly slows down IO performance.
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*
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* Try to enable if you need to handle situations when SD cards
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* are not unmounted properly before physical removal
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* or you are experiencing issues with SD cards.
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*
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* Doesn't do anything for other memory storage media.
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*/
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bool disk_status_check_enable;
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} esp_vfs_fat_mount_config_t;
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// Compatibility definition
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typedef esp_vfs_fat_mount_config_t esp_vfs_fat_sdmmc_mount_config_t;
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/**
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* @brief Convenience function to get FAT filesystem on SD card registered in VFS
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*
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* This is an all-in-one function which does the following:
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* - initializes SDMMC driver or SPI driver with configuration in host_config
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* - initializes SD card with configuration in slot_config
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* - mounts FAT partition on SD card using FATFS library, with configuration in mount_config
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* - registers FATFS library with VFS, with prefix given by base_prefix variable
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*
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* This function is intended to make example code more compact.
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* For real world applications, developers should implement the logic of
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* probing SD card, locating and mounting partition, and registering FATFS in VFS,
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* with proper error checking and handling of exceptional conditions.
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*
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* @note Use this API to mount a card through SDSPI is deprecated. Please call
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* `esp_vfs_fat_sdspi_mount()` instead for that case.
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*
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* @param base_path path where partition should be registered (e.g. "/sdcard")
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* @param host_config Pointer to structure describing SDMMC host. When using
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* SDMMC peripheral, this structure can be initialized using
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* SDMMC_HOST_DEFAULT() macro. When using SPI peripheral,
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* this structure can be initialized using SDSPI_HOST_DEFAULT()
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* macro.
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* @param slot_config Pointer to structure with slot configuration.
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* For SDMMC peripheral, pass a pointer to sdmmc_slot_config_t
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* structure initialized using SDMMC_SLOT_CONFIG_DEFAULT.
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* @param mount_config pointer to structure with extra parameters for mounting FATFS
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* @param[out] out_card if not NULL, pointer to the card information structure will be returned via this argument
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount was already called
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* - ESP_ERR_NO_MEM if memory can not be allocated
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* - ESP_FAIL if partition can not be mounted
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* - other error codes from SDMMC or SPI drivers, SDMMC protocol, or FATFS drivers
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*/
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esp_err_t esp_vfs_fat_sdmmc_mount(const char* base_path,
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const sdmmc_host_t* host_config,
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const void* slot_config,
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const esp_vfs_fat_mount_config_t* mount_config,
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sdmmc_card_t** out_card);
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/**
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* @brief Convenience function to get FAT filesystem on SD card registered in VFS
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*
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* This is an all-in-one function which does the following:
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* - initializes an SPI Master device based on the SPI Master driver with configuration in
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* slot_config, and attach it to an initialized SPI bus.
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* - initializes SD card with configuration in host_config_input
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* - mounts FAT partition on SD card using FATFS library, with configuration in mount_config
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* - registers FATFS library with VFS, with prefix given by base_prefix variable
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*
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* This function is intended to make example code more compact.
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* For real world applications, developers should implement the logic of
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* probing SD card, locating and mounting partition, and registering FATFS in VFS,
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* with proper error checking and handling of exceptional conditions.
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*
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* @note This function try to attach the new SD SPI device to the bus specified in host_config.
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* Make sure the SPI bus specified in `host_config->slot` have been initialized by
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* `spi_bus_initialize()` before.
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*
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* @param base_path path where partition should be registered (e.g. "/sdcard")
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* @param host_config_input Pointer to structure describing SDMMC host. This structure can be
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* initialized using SDSPI_HOST_DEFAULT() macro.
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* @param slot_config Pointer to structure with slot configuration.
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* For SPI peripheral, pass a pointer to sdspi_device_config_t
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* structure initialized using SDSPI_DEVICE_CONFIG_DEFAULT().
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* @param mount_config pointer to structure with extra parameters for mounting FATFS
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* @param[out] out_card If not NULL, pointer to the card information structure will be returned via
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* this argument. It is suggested to hold this handle and use it to unmount the card later if
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* needed. Otherwise it's not suggested to use more than one card at the same time and unmount one
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* of them in your application.
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount was already called
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* - ESP_ERR_NO_MEM if memory can not be allocated
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* - ESP_FAIL if partition can not be mounted
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* - other error codes from SDMMC or SPI drivers, SDMMC protocol, or FATFS drivers
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*/
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esp_err_t esp_vfs_fat_sdspi_mount(const char* base_path,
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const sdmmc_host_t* host_config_input,
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const sdspi_device_config_t* slot_config,
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const esp_vfs_fat_mount_config_t* mount_config,
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sdmmc_card_t** out_card);
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/**
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* @brief Unmount FAT filesystem and release resources acquired using esp_vfs_fat_sdmmc_mount
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*
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* @deprecated Use `esp_vfs_fat_sdcard_unmount()` instead.
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*
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount hasn't been called
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*/
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esp_err_t esp_vfs_fat_sdmmc_unmount(void) __attribute__((deprecated("Please use esp_vfs_fat_sdcard_unmount instead")));
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/**
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* @brief Unmount an SD card from the FAT filesystem and release resources acquired using
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* `esp_vfs_fat_sdmmc_mount()` or `esp_vfs_fat_sdspi_mount()`
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*
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_ARG if the card argument is unregistered
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount hasn't been called
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*/
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esp_err_t esp_vfs_fat_sdcard_unmount(const char* base_path, sdmmc_card_t *card);
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/**
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* @brief Format FAT filesystem
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*
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* @note
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* This API should be only called when the FAT is already mounted.
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*
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* @param base_path Path where partition should be registered (e.g. "/sdcard")
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* @param card Pointer to the card handle, which should be initialised by calling `esp_vfs_fat_sdspi_mount` first
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*
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* @return
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* - ESP_OK
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* - ESP_ERR_INVALID_STATE: FAT partition isn't mounted, call esp_vfs_fat_sdmmc_mount or esp_vfs_fat_sdspi_mount first
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* - ESP_ERR_NO_MEM: if memory can not be allocated
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* - ESP_FAIL: fail to format it, or fail to mount back
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*/
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esp_err_t esp_vfs_fat_sdcard_format(const char *base_path, sdmmc_card_t *card);
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/**
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* @brief Convenience function to initialize FAT filesystem in SPI flash and register it in VFS
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*
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* This is an all-in-one function which does the following:
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*
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* - finds the partition with defined partition_label. Partition label should be
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* configured in the partition table.
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* - initializes flash wear levelling library on top of the given partition
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* - mounts FAT partition using FATFS library on top of flash wear levelling
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* library
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* - registers FATFS library with VFS, with prefix given by base_prefix variable
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*
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* This function is intended to make example code more compact.
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*
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* @param base_path path where FATFS partition should be mounted (e.g. "/spiflash")
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* @param partition_label label of the partition which should be used
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* @param mount_config pointer to structure with extra parameters for mounting FATFS
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* @param[out] wl_handle wear levelling driver handle
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* @return
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* - ESP_OK on success
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* - ESP_ERR_NOT_FOUND if the partition table does not contain FATFS partition with given label
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_rw_wl was already called
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* - ESP_ERR_NO_MEM if memory can not be allocated
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* - ESP_FAIL if partition can not be mounted
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* - other error codes from wear levelling library, SPI flash driver, or FATFS drivers
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*/
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esp_err_t esp_vfs_fat_spiflash_mount_rw_wl(const char* base_path,
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const char* partition_label,
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const esp_vfs_fat_mount_config_t* mount_config,
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wl_handle_t* wl_handle);
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/**
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* @brief Unmount FAT filesystem and release resources acquired using esp_vfs_fat_spiflash_mount_rw_wl
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*
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* @param base_path path where partition should be registered (e.g. "/spiflash")
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* @param wl_handle wear levelling driver handle returned by esp_vfs_fat_spiflash_mount_rw_wl
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*
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_rw_wl hasn't been called
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*/
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esp_err_t esp_vfs_fat_spiflash_unmount_rw_wl(const char* base_path, wl_handle_t wl_handle);
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/**
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* @brief Format FAT filesystem
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*
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* @note
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* This API can be called when the FAT is mounted / not mounted.
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* If this API is called when the FAT isn't mounted (by calling esp_vfs_fat_spiflash_mount_rw_wl),
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* this API will first mount the FAT then format it, then restore back to the original state.
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*
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* @param base_path Path where partition should be registered (e.g. "/spiflash")
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* @param partition_label Label of the partition which should be used
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*
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* @return
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* - ESP_OK
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* - ESP_ERR_NO_MEM: if memory can not be allocated
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* - Other errors from esp_vfs_fat_spiflash_mount_rw_wl
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*/
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esp_err_t esp_vfs_fat_spiflash_format_rw_wl(const char* base_path, const char* partition_label);
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/**
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* @brief Convenience function to initialize read-only FAT filesystem and register it in VFS
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*
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* This is an all-in-one function which does the following:
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*
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* - finds the partition with defined partition_label. Partition label should be
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* configured in the partition table.
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* - mounts FAT partition using FATFS library
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* - registers FATFS library with VFS, with prefix given by base_prefix variable
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*
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* @note Wear levelling is not used when FAT is mounted in read-only mode using this function.
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*
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* @param base_path path where FATFS partition should be mounted (e.g. "/spiflash")
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* @param partition_label label of the partition which should be used
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* @param mount_config pointer to structure with extra parameters for mounting FATFS
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* @return
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* - ESP_OK on success
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* - ESP_ERR_NOT_FOUND if the partition table does not contain FATFS partition with given label
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_ro was already called for the same partition
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* - ESP_ERR_NO_MEM if memory can not be allocated
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* - ESP_FAIL if partition can not be mounted
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* - other error codes from SPI flash driver, or FATFS drivers
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*/
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esp_err_t esp_vfs_fat_spiflash_mount_ro(const char* base_path,
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const char* partition_label,
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const esp_vfs_fat_mount_config_t* mount_config);
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/**
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* @brief Unmount FAT filesystem and release resources acquired using esp_vfs_fat_spiflash_mount_ro
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*
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* @param base_path path where partition should be registered (e.g. "/spiflash")
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* @param partition_label label of partition to be unmounted
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*
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_ro hasn't been called
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*/
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esp_err_t esp_vfs_fat_spiflash_unmount_ro(const char* base_path, const char* partition_label);
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esp_err_t esp_vfs_fat_spiflash_mount(const char* base_path,
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const char* partition_label,
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const esp_vfs_fat_mount_config_t* mount_config,
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wl_handle_t* wl_handle)
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__attribute__((deprecated("esp_vfs_fat_spiflash_mount is deprecated, please use esp_vfs_fat_spiflash_mount_rw_wl instead")));
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esp_err_t esp_vfs_fat_spiflash_unmount(const char* base_path, wl_handle_t wl_handle)
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__attribute__((deprecated("esp_vfs_fat_spiflash_unmount is deprecated, please use esp_vfs_fat_spiflash_unmount_rw_wl instead")));
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esp_err_t esp_vfs_fat_rawflash_mount(const char* base_path,
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const char* partition_label,
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const esp_vfs_fat_mount_config_t* mount_config)
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__attribute__((deprecated("esp_vfs_fat_rawflash_mount is deprecated, please use esp_vfs_fat_spiflash_mount_ro instead")));
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esp_err_t esp_vfs_fat_rawflash_unmount(const char* base_path, const char* partition_label)
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__attribute__((deprecated("esp_vfs_fat_rawflash_unmount is deprecated, please use esp_vfs_fat_spiflash_unmount_ro instead")));
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/**
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* @brief Get information for FATFS partition
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*
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* @param base_path Path where partition should be registered (e.g. "/spiflash")
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* @param[out] out_total_bytes Size of the file system
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* @param[out] out_free_bytes Current used bytes in the file system
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_STATE if partition not found
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* - ESP_FAIL if another FRESULT error (saved in errno)
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*/
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esp_err_t esp_vfs_fat_info(const char* base_path, uint64_t* out_total_bytes, uint64_t* out_free_bytes);
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#ifdef __cplusplus
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}
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#endif
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