/* * SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #pragma once #include #include "esp_err.h" #include "driver/gpio.h" #include "driver/sdmmc_types.h" #include "driver/sdspi_host.h" #include "ff.h" #include "wear_levelling.h" #ifdef __cplusplus extern "C" { #endif /** * @brief Register FATFS with VFS component * * This function registers given FAT drive in VFS, at the specified base path. * If only one drive is used, fat_drive argument can be an empty string. * Refer to FATFS library documentation on how to specify FAT drive. * This function also allocates FATFS structure which should be used for f_mount * call. * * @note This function doesn't mount the drive into FATFS, it just connects * POSIX and C standard library IO function with FATFS. You need to mount * desired drive into FATFS separately. * * @param base_path path prefix where FATFS should be registered * @param fat_drive FATFS drive specification; if only one drive is used, can be an empty string * @param max_files maximum number of files which can be open at the same time * @param[out] out_fs pointer to FATFS structure which can be used for FATFS f_mount call is returned via this argument. * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if esp_vfs_fat_register was already called * - ESP_ERR_NO_MEM if not enough memory or too many VFSes already registered */ esp_err_t esp_vfs_fat_register(const char* base_path, const char* fat_drive, size_t max_files, FATFS** out_fs); /** * @brief Un-register FATFS from VFS * * @note FATFS structure returned by esp_vfs_fat_register is destroyed after * this call. Make sure to call f_mount function to unmount it before * calling esp_vfs_fat_unregister_ctx. * Difference between this function and the one above is that this one * will release the correct drive, while the one above will release * the last registered one * * @param base_path path prefix where FATFS is registered. This is the same * used when esp_vfs_fat_register was called * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if FATFS is not registered in VFS */ esp_err_t esp_vfs_fat_unregister_path(const char* base_path); /** * @brief Configuration arguments for esp_vfs_fat_sdmmc_mount and esp_vfs_fat_spiflash_mount_rw_wl functions */ typedef struct { /** * If FAT partition can not be mounted, and this parameter is true, * create partition table and format the filesystem. */ bool format_if_mount_failed; int max_files; ///< Max number of open files /** * If format_if_mount_failed is set, and mount fails, format the card * with given allocation unit size. Must be a power of 2, between sector * size and 128 * sector size. * For SD cards, sector size is always 512 bytes. For wear_levelling, * sector size is determined by CONFIG_WL_SECTOR_SIZE option. * * Using larger allocation unit size will result in higher read/write * performance and higher overhead when storing small files. * * Setting this field to 0 will result in allocation unit set to the * sector size. */ size_t allocation_unit_size; /** * Enables real ff_disk_status function implementation for SD cards * (ff_sdmmc_status). Possibly slows down IO performance. * * Try to enable if you need to handle situations when SD cards * are not unmounted properly before physical removal * or you are experiencing issues with SD cards. * * Doesn't do anything for other memory storage media. */ bool disk_status_check_enable; } esp_vfs_fat_mount_config_t; // Compatibility definition typedef esp_vfs_fat_mount_config_t esp_vfs_fat_sdmmc_mount_config_t; /** * @brief Convenience function to get FAT filesystem on SD card registered in VFS * * This is an all-in-one function which does the following: * - initializes SDMMC driver or SPI driver with configuration in host_config * - initializes SD card with configuration in slot_config * - mounts FAT partition on SD card using FATFS library, with configuration in mount_config * - registers FATFS library with VFS, with prefix given by base_prefix variable * * This function is intended to make example code more compact. * For real world applications, developers should implement the logic of * probing SD card, locating and mounting partition, and registering FATFS in VFS, * with proper error checking and handling of exceptional conditions. * * @note Use this API to mount a card through SDSPI is deprecated. Please call * `esp_vfs_fat_sdspi_mount()` instead for that case. * * @param base_path path where partition should be registered (e.g. "/sdcard") * @param host_config Pointer to structure describing SDMMC host. When using * SDMMC peripheral, this structure can be initialized using * SDMMC_HOST_DEFAULT() macro. When using SPI peripheral, * this structure can be initialized using SDSPI_HOST_DEFAULT() * macro. * @param slot_config Pointer to structure with slot configuration. * For SDMMC peripheral, pass a pointer to sdmmc_slot_config_t * structure initialized using SDMMC_SLOT_CONFIG_DEFAULT. * @param mount_config pointer to structure with extra parameters for mounting FATFS * @param[out] out_card if not NULL, pointer to the card information structure will be returned via this argument * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount was already called * - ESP_ERR_NO_MEM if memory can not be allocated * - ESP_FAIL if partition can not be mounted * - other error codes from SDMMC or SPI drivers, SDMMC protocol, or FATFS drivers */ esp_err_t esp_vfs_fat_sdmmc_mount(const char* base_path, const sdmmc_host_t* host_config, const void* slot_config, const esp_vfs_fat_mount_config_t* mount_config, sdmmc_card_t** out_card); /** * @brief Convenience function to get FAT filesystem on SD card registered in VFS * * This is an all-in-one function which does the following: * - initializes an SPI Master device based on the SPI Master driver with configuration in * slot_config, and attach it to an initialized SPI bus. * - initializes SD card with configuration in host_config_input * - mounts FAT partition on SD card using FATFS library, with configuration in mount_config * - registers FATFS library with VFS, with prefix given by base_prefix variable * * This function is intended to make example code more compact. * For real world applications, developers should implement the logic of * probing SD card, locating and mounting partition, and registering FATFS in VFS, * with proper error checking and handling of exceptional conditions. * * @note This function try to attach the new SD SPI device to the bus specified in host_config. * Make sure the SPI bus specified in `host_config->slot` have been initialized by * `spi_bus_initialize()` before. * * @param base_path path where partition should be registered (e.g. "/sdcard") * @param host_config_input Pointer to structure describing SDMMC host. This structure can be * initialized using SDSPI_HOST_DEFAULT() macro. * @param slot_config Pointer to structure with slot configuration. * For SPI peripheral, pass a pointer to sdspi_device_config_t * structure initialized using SDSPI_DEVICE_CONFIG_DEFAULT(). * @param mount_config pointer to structure with extra parameters for mounting FATFS * @param[out] out_card If not NULL, pointer to the card information structure will be returned via * this argument. It is suggested to hold this handle and use it to unmount the card later if * needed. Otherwise it's not suggested to use more than one card at the same time and unmount one * of them in your application. * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount was already called * - ESP_ERR_NO_MEM if memory can not be allocated * - ESP_FAIL if partition can not be mounted * - other error codes from SDMMC or SPI drivers, SDMMC protocol, or FATFS drivers */ esp_err_t esp_vfs_fat_sdspi_mount(const char* base_path, const sdmmc_host_t* host_config_input, const sdspi_device_config_t* slot_config, const esp_vfs_fat_mount_config_t* mount_config, sdmmc_card_t** out_card); /** * @brief Unmount FAT filesystem and release resources acquired using esp_vfs_fat_sdmmc_mount * * @deprecated Use `esp_vfs_fat_sdcard_unmount()` instead. * * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount hasn't been called */ esp_err_t esp_vfs_fat_sdmmc_unmount(void); /** * @brief Unmount an SD card from the FAT filesystem and release resources acquired using * `esp_vfs_fat_sdmmc_mount()` or `esp_vfs_fat_sdspi_mount()` * * @return * - ESP_OK on success * - ESP_ERR_INVALID_ARG if the card argument is unregistered * - ESP_ERR_INVALID_STATE if esp_vfs_fat_sdmmc_mount hasn't been called */ esp_err_t esp_vfs_fat_sdcard_unmount(const char* base_path, sdmmc_card_t *card); /** * @brief Convenience function to initialize FAT filesystem in SPI flash and register it in VFS * * This is an all-in-one function which does the following: * * - finds the partition with defined partition_label. Partition label should be * configured in the partition table. * - initializes flash wear levelling library on top of the given partition * - mounts FAT partition using FATFS library on top of flash wear levelling * library * - registers FATFS library with VFS, with prefix given by base_prefix variable * * This function is intended to make example code more compact. * * @param base_path path where FATFS partition should be mounted (e.g. "/spiflash") * @param partition_label label of the partition which should be used * @param mount_config pointer to structure with extra parameters for mounting FATFS * @param[out] wl_handle wear levelling driver handle * @return * - ESP_OK on success * - ESP_ERR_NOT_FOUND if the partition table does not contain FATFS partition with given label * - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_rw_wl was already called * - ESP_ERR_NO_MEM if memory can not be allocated * - ESP_FAIL if partition can not be mounted * - other error codes from wear levelling library, SPI flash driver, or FATFS drivers */ esp_err_t esp_vfs_fat_spiflash_mount_rw_wl(const char* base_path, const char* partition_label, const esp_vfs_fat_mount_config_t* mount_config, wl_handle_t* wl_handle); /** * @brief Unmount FAT filesystem and release resources acquired using esp_vfs_fat_spiflash_mount_rw_wl * * @param base_path path where partition should be registered (e.g. "/spiflash") * @param wl_handle wear levelling driver handle returned by esp_vfs_fat_spiflash_mount_rw_wl * * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_rw_wl hasn't been called */ esp_err_t esp_vfs_fat_spiflash_unmount_rw_wl(const char* base_path, wl_handle_t wl_handle); /** * @brief Convenience function to initialize read-only FAT filesystem and register it in VFS * * This is an all-in-one function which does the following: * * - finds the partition with defined partition_label. Partition label should be * configured in the partition table. * - mounts FAT partition using FATFS library * - registers FATFS library with VFS, with prefix given by base_prefix variable * * @note Wear levelling is not used when FAT is mounted in read-only mode using this function. * * @param base_path path where FATFS partition should be mounted (e.g. "/spiflash") * @param partition_label label of the partition which should be used * @param mount_config pointer to structure with extra parameters for mounting FATFS * @return * - ESP_OK on success * - ESP_ERR_NOT_FOUND if the partition table does not contain FATFS partition with given label * - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_ro was already called for the same partition * - ESP_ERR_NO_MEM if memory can not be allocated * - ESP_FAIL if partition can not be mounted * - other error codes from SPI flash driver, or FATFS drivers */ esp_err_t esp_vfs_fat_spiflash_mount_ro(const char* base_path, const char* partition_label, const esp_vfs_fat_mount_config_t* mount_config); /** * @brief Unmount FAT filesystem and release resources acquired using esp_vfs_fat_spiflash_mount_ro * * @param base_path path where partition should be registered (e.g. "/spiflash") * @param partition_label label of partition to be unmounted * * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if esp_vfs_fat_spiflash_mount_rw_wl hasn't been called */ esp_err_t esp_vfs_fat_spiflash_unmount_ro(const char* base_path, const char* partition_label); /** * @brief Get information for FATFS partition * * @param base_path Base path of the partition examined (e.g. "/spiflash") * @param[out] out_total_bytes Size of the file system * @param[out] out_free_bytes Free bytes available in the file system * @return * - ESP_OK on success * - ESP_ERR_INVALID_STATE if partition not found * - ESP_FAIL if another FRESULT error (saved in errno) */ esp_err_t esp_vfs_fat_info(const char* base_path, uint64_t* out_total_bytes, uint64_t* out_free_bytes); /** @cond */ /** * @deprecated Please use `esp_vfs_fat_spiflash_mount_rw_wl` instead */ esp_err_t esp_vfs_fat_spiflash_mount(const char* base_path, const char* partition_label, const esp_vfs_fat_mount_config_t* mount_config, wl_handle_t* wl_handle) __attribute__((deprecated("esp_vfs_fat_spiflash_mount is deprecated, please use esp_vfs_fat_spiflash_mount_rw_wl instead"))); /** * @deprecated Please use `esp_vfs_fat_spiflash_unmount_rw_wl` instead */ esp_err_t esp_vfs_fat_spiflash_unmount(const char* base_path, wl_handle_t wl_handle) __attribute__((deprecated("esp_vfs_fat_spiflash_unmount is deprecated, please use esp_vfs_fat_spiflash_unmount_rw_wl instead"))); /** * @deprecated Please use `esp_vfs_fat_spiflash_mount_ro` instead */ esp_err_t esp_vfs_fat_rawflash_mount(const char* base_path, const char* partition_label, const esp_vfs_fat_mount_config_t* mount_config) __attribute__((deprecated("esp_vfs_fat_rawflash_mount is deprecated, please use esp_vfs_fat_spiflash_mount_ro instead"))); /** * @deprecated Please use `esp_vfs_fat_spiflash_unmount_ro` instead */ esp_err_t esp_vfs_fat_rawflash_unmount(const char* base_path, const char* partition_label) __attribute__((deprecated("esp_vfs_fat_rawflash_unmount is deprecated, please use esp_vfs_fat_spiflash_unmount_ro instead"))); /** @endcond */ #ifdef __cplusplus } #endif