739 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			739 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| #include "storage_int.h"
 | |
| #include <lfs.h>
 | |
| #include <furi_hal.h>
 | |
| #include <toolbox/path.h>
 | |
| 
 | |
| #define TAG "StorageInt"
 | |
| #define STORAGE_PATH STORAGE_INT_PATH_PREFIX
 | |
| #define LFS_CLEAN_FINGERPRINT 0
 | |
| 
 | |
| /* When less than LFS_RESERVED_PAGES_COUNT are left free, creation & 
 | |
|  * modification of non-dot files is restricted */
 | |
| #define LFS_RESERVED_PAGES_COUNT 3
 | |
| 
 | |
| typedef struct {
 | |
|     const size_t start_address;
 | |
|     const size_t start_page;
 | |
|     struct lfs_config config;
 | |
|     lfs_t lfs;
 | |
| } LFSData;
 | |
| 
 | |
| typedef struct {
 | |
|     void* data;
 | |
|     bool open;
 | |
| } LFSHandle;
 | |
| 
 | |
| static LFSHandle* lfs_handle_alloc_file() {
 | |
|     LFSHandle* handle = malloc(sizeof(LFSHandle));
 | |
|     handle->data = malloc(sizeof(lfs_file_t));
 | |
|     return handle;
 | |
| }
 | |
| 
 | |
| static LFSHandle* lfs_handle_alloc_dir() {
 | |
|     LFSHandle* handle = malloc(sizeof(LFSHandle));
 | |
|     handle->data = malloc(sizeof(lfs_dir_t));
 | |
|     return handle;
 | |
| }
 | |
| 
 | |
| /* INTERNALS */
 | |
| 
 | |
| static lfs_dir_t* lfs_handle_get_dir(LFSHandle* handle) {
 | |
|     return handle->data;
 | |
| }
 | |
| 
 | |
| static lfs_file_t* lfs_handle_get_file(LFSHandle* handle) {
 | |
|     return handle->data;
 | |
| }
 | |
| 
 | |
| static void lfs_handle_free(LFSHandle* handle) {
 | |
|     free(handle->data);
 | |
|     free(handle);
 | |
| }
 | |
| 
 | |
| static void lfs_handle_set_open(LFSHandle* handle) {
 | |
|     handle->open = true;
 | |
| }
 | |
| 
 | |
| static bool lfs_handle_is_open(LFSHandle* handle) {
 | |
|     return handle->open;
 | |
| }
 | |
| 
 | |
| static lfs_t* lfs_get_from_storage(StorageData* storage) {
 | |
|     return &((LFSData*)storage->data)->lfs;
 | |
| }
 | |
| 
 | |
| static LFSData* lfs_data_get_from_storage(StorageData* storage) {
 | |
|     return (LFSData*)storage->data;
 | |
| }
 | |
| 
 | |
| static int storage_int_device_read(
 | |
|     const struct lfs_config* c,
 | |
|     lfs_block_t block,
 | |
|     lfs_off_t off,
 | |
|     void* buffer,
 | |
|     lfs_size_t size) {
 | |
|     LFSData* lfs_data = c->context;
 | |
|     size_t address = lfs_data->start_address + block * c->block_size + off;
 | |
| 
 | |
|     FURI_LOG_T(
 | |
|         TAG,
 | |
|         "Device read: block %lu, off %lu, buffer: %p, size %lu, translated address: %p",
 | |
|         block,
 | |
|         off,
 | |
|         buffer,
 | |
|         size,
 | |
|         (void*)address);
 | |
| 
 | |
|     memcpy(buffer, (void*)address, size);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int storage_int_device_prog(
 | |
|     const struct lfs_config* c,
 | |
|     lfs_block_t block,
 | |
|     lfs_off_t off,
 | |
|     const void* buffer,
 | |
|     lfs_size_t size) {
 | |
|     LFSData* lfs_data = c->context;
 | |
|     size_t address = lfs_data->start_address + block * c->block_size + off;
 | |
| 
 | |
|     FURI_LOG_T(
 | |
|         TAG,
 | |
|         "Device prog: block %lu, off %lu, buffer: %p, size %lu, translated address: %p",
 | |
|         block,
 | |
|         off,
 | |
|         buffer,
 | |
|         size,
 | |
|         (void*)address);
 | |
| 
 | |
|     int ret = 0;
 | |
|     while(size > 0) {
 | |
|         furi_hal_flash_write_dword(address, *(uint64_t*)buffer);
 | |
|         address += c->prog_size;
 | |
|         buffer += c->prog_size;
 | |
|         size -= c->prog_size;
 | |
|     }
 | |
| 
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int storage_int_device_erase(const struct lfs_config* c, lfs_block_t block) {
 | |
|     LFSData* lfs_data = c->context;
 | |
|     size_t page = lfs_data->start_page + block;
 | |
| 
 | |
|     FURI_LOG_D(TAG, "Device erase: page %lu, translated page: %zx", block, page);
 | |
| 
 | |
|     furi_hal_flash_erase(page);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int storage_int_device_sync(const struct lfs_config* c) {
 | |
|     UNUSED(c);
 | |
|     FURI_LOG_D(TAG, "Device sync: skipping");
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static LFSData* storage_int_lfs_data_alloc() {
 | |
|     LFSData* lfs_data = malloc(sizeof(LFSData));
 | |
| 
 | |
|     // Internal storage start address
 | |
|     *(size_t*)(&lfs_data->start_address) = furi_hal_flash_get_free_page_start_address();
 | |
|     *(size_t*)(&lfs_data->start_page) =
 | |
|         (lfs_data->start_address - furi_hal_flash_get_base()) / furi_hal_flash_get_page_size();
 | |
| 
 | |
|     // LFS configuration
 | |
|     // Glue and context
 | |
|     lfs_data->config.context = lfs_data;
 | |
|     lfs_data->config.read = storage_int_device_read;
 | |
|     lfs_data->config.prog = storage_int_device_prog;
 | |
|     lfs_data->config.erase = storage_int_device_erase;
 | |
|     lfs_data->config.sync = storage_int_device_sync;
 | |
| 
 | |
|     // Block device description
 | |
|     lfs_data->config.read_size = furi_hal_flash_get_read_block_size();
 | |
|     lfs_data->config.prog_size = furi_hal_flash_get_write_block_size();
 | |
|     lfs_data->config.block_size = furi_hal_flash_get_page_size();
 | |
|     lfs_data->config.block_count = furi_hal_flash_get_free_page_count();
 | |
|     lfs_data->config.block_cycles = furi_hal_flash_get_cycles_count();
 | |
|     lfs_data->config.cache_size = 16;
 | |
|     lfs_data->config.lookahead_size = 16;
 | |
| 
 | |
|     return lfs_data;
 | |
| };
 | |
| 
 | |
| // Returns true if fingerprint was invalid and LFS reformatting is needed
 | |
| static bool storage_int_check_and_set_fingerprint(LFSData* lfs_data) {
 | |
|     bool value = false;
 | |
| 
 | |
|     uint32_t os_fingerprint = 0;
 | |
|     os_fingerprint |= ((lfs_data->start_page & 0xFF) << 0);
 | |
|     os_fingerprint |= ((lfs_data->config.block_count & 0xFF) << 8);
 | |
|     os_fingerprint |= ((LFS_DISK_VERSION_MAJOR & 0xFFFF) << 16);
 | |
| 
 | |
|     uint32_t rtc_fingerprint = furi_hal_rtc_get_register(FuriHalRtcRegisterLfsFingerprint);
 | |
|     if(rtc_fingerprint == LFS_CLEAN_FINGERPRINT) {
 | |
|         FURI_LOG_I(TAG, "Storing LFS fingerprint in RTC");
 | |
|         furi_hal_rtc_set_register(FuriHalRtcRegisterLfsFingerprint, os_fingerprint);
 | |
|     } else if(rtc_fingerprint != os_fingerprint) {
 | |
|         FURI_LOG_E(TAG, "LFS fingerprint mismatch");
 | |
|         furi_hal_rtc_set_register(FuriHalRtcRegisterLfsFingerprint, os_fingerprint);
 | |
|         value = true;
 | |
|     }
 | |
| 
 | |
|     return value;
 | |
| }
 | |
| 
 | |
| static void storage_int_lfs_mount(LFSData* lfs_data, StorageData* storage) {
 | |
|     int err;
 | |
|     lfs_t* lfs = &lfs_data->lfs;
 | |
| 
 | |
|     bool was_fingerprint_outdated = storage_int_check_and_set_fingerprint(lfs_data);
 | |
|     bool need_format = furi_hal_rtc_is_flag_set(FuriHalRtcFlagFactoryReset) ||
 | |
|                        was_fingerprint_outdated;
 | |
| 
 | |
|     if(need_format) {
 | |
|         // Format storage
 | |
|         err = lfs_format(lfs, &lfs_data->config);
 | |
|         if(err == 0) {
 | |
|             FURI_LOG_I(TAG, "Factory reset: Format successful, trying to mount");
 | |
|             furi_hal_rtc_reset_flag(FuriHalRtcFlagFactoryReset);
 | |
|             err = lfs_mount(lfs, &lfs_data->config);
 | |
|             if(err == 0) {
 | |
|                 FURI_LOG_I(TAG, "Factory reset: Mounted");
 | |
|                 storage->status = StorageStatusOK;
 | |
|             } else {
 | |
|                 FURI_LOG_E(TAG, "Factory reset: Mount after format failed");
 | |
|                 storage->status = StorageStatusNotMounted;
 | |
|             }
 | |
|         } else {
 | |
|             FURI_LOG_E(TAG, "Factory reset: Format failed");
 | |
|             storage->status = StorageStatusNoFS;
 | |
|         }
 | |
|     } else {
 | |
|         // Normal
 | |
|         err = lfs_mount(lfs, &lfs_data->config);
 | |
|         if(err == 0) {
 | |
|             FURI_LOG_I(TAG, "Mounted");
 | |
|             storage->status = StorageStatusOK;
 | |
|         } else {
 | |
|             FURI_LOG_E(TAG, "Mount failed, formatting");
 | |
|             err = lfs_format(lfs, &lfs_data->config);
 | |
|             if(err == 0) {
 | |
|                 FURI_LOG_I(TAG, "Format successful, trying to mount");
 | |
|                 err = lfs_mount(lfs, &lfs_data->config);
 | |
|                 if(err == 0) {
 | |
|                     FURI_LOG_I(TAG, "Mounted");
 | |
|                     storage->status = StorageStatusOK;
 | |
|                 } else {
 | |
|                     FURI_LOG_E(TAG, "Mount after format failed");
 | |
|                     storage->status = StorageStatusNotMounted;
 | |
|                 }
 | |
|             } else {
 | |
|                 FURI_LOG_E(TAG, "Format failed");
 | |
|                 storage->status = StorageStatusNoFS;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| /****************** Common Functions ******************/
 | |
| 
 | |
| static FS_Error storage_int_parse_error(int error) {
 | |
|     FS_Error result;
 | |
| 
 | |
|     if(error >= LFS_ERR_OK) {
 | |
|         result = FSE_OK;
 | |
|     } else {
 | |
|         switch(error) {
 | |
|         case LFS_ERR_NOENT:
 | |
|             result = FSE_NOT_EXIST;
 | |
|             break;
 | |
|         case LFS_ERR_EXIST:
 | |
|             result = FSE_EXIST;
 | |
|             break;
 | |
|         case LFS_ERR_NOTEMPTY:
 | |
|             result = FSE_DENIED;
 | |
|             break;
 | |
|         case LFS_ERR_INVAL:
 | |
|         case LFS_ERR_NOATTR:
 | |
|             result = FSE_INVALID_PARAMETER;
 | |
|             break;
 | |
|         case LFS_ERR_BADF:
 | |
|         case LFS_ERR_ISDIR:
 | |
|         case LFS_ERR_NOTDIR:
 | |
|         case LFS_ERR_NAMETOOLONG:
 | |
|             result = FSE_INVALID_NAME;
 | |
|             break;
 | |
|         case LFS_ERR_IO:
 | |
|         case LFS_ERR_FBIG:
 | |
|         case LFS_ERR_NOSPC:
 | |
|         case LFS_ERR_NOMEM:
 | |
|         case LFS_ERR_CORRUPT:
 | |
|         default:
 | |
|             result = FSE_INTERNAL;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return result;
 | |
| }
 | |
| 
 | |
| /* Returns false if less than reserved space is left free */
 | |
| static bool storage_int_check_for_free_space(StorageData* storage) {
 | |
|     LFSData* lfs_data = lfs_data_get_from_storage(storage);
 | |
| 
 | |
|     lfs_ssize_t result = lfs_fs_size(lfs_get_from_storage(storage));
 | |
|     if(result >= 0) {
 | |
|         lfs_size_t free_space =
 | |
|             (lfs_data->config.block_count - result) * lfs_data->config.block_size;
 | |
| 
 | |
|         return (free_space > LFS_RESERVED_PAGES_COUNT * furi_hal_flash_get_page_size());
 | |
|     }
 | |
| 
 | |
|     return false;
 | |
| }
 | |
| /******************* File Functions *******************/
 | |
| 
 | |
| static bool storage_int_file_open(
 | |
|     void* ctx,
 | |
|     File* file,
 | |
|     const char* path,
 | |
|     FS_AccessMode access_mode,
 | |
|     FS_OpenMode open_mode) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
| 
 | |
|     bool enough_free_space = storage_int_check_for_free_space(storage);
 | |
| 
 | |
|     int flags = 0;
 | |
| 
 | |
|     if(access_mode & FSAM_READ) flags |= LFS_O_RDONLY;
 | |
|     if(access_mode & FSAM_WRITE) flags |= LFS_O_WRONLY;
 | |
| 
 | |
|     if(open_mode & FSOM_OPEN_EXISTING) flags |= 0;
 | |
|     if(open_mode & FSOM_OPEN_ALWAYS) flags |= LFS_O_CREAT;
 | |
|     if(open_mode & FSOM_OPEN_APPEND) flags |= LFS_O_CREAT | LFS_O_APPEND;
 | |
|     if(open_mode & FSOM_CREATE_NEW) flags |= LFS_O_CREAT | LFS_O_EXCL;
 | |
|     if(open_mode & FSOM_CREATE_ALWAYS) flags |= LFS_O_CREAT | LFS_O_TRUNC;
 | |
| 
 | |
|     LFSHandle* handle = lfs_handle_alloc_file();
 | |
|     storage_set_storage_file_data(file, handle, storage);
 | |
| 
 | |
|     if(!enough_free_space) {
 | |
|         FuriString* filename;
 | |
|         filename = furi_string_alloc();
 | |
|         path_extract_basename(path, filename);
 | |
|         bool is_dot_file =
 | |
|             (!furi_string_empty(filename) && (furi_string_get_char(filename, 0) == '.'));
 | |
|         furi_string_free(filename);
 | |
| 
 | |
|         /* Restrict write & creation access to all non-dot files */
 | |
|         if(!is_dot_file && (flags & (LFS_O_CREAT | LFS_O_WRONLY))) {
 | |
|             file->internal_error_id = LFS_ERR_NOSPC;
 | |
|             file->error_id = FSE_DENIED;
 | |
|             FURI_LOG_W(TAG, "Denied access to '%s': no free space", path);
 | |
|             return false;
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     file->internal_error_id = lfs_file_open(lfs, lfs_handle_get_file(handle), path, flags);
 | |
| 
 | |
|     if(file->internal_error_id >= LFS_ERR_OK) {
 | |
|         lfs_handle_set_open(handle);
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
| 
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static bool storage_int_file_close(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id = lfs_file_close(lfs, lfs_handle_get_file(handle));
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     lfs_handle_free(handle);
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static uint16_t
 | |
|     storage_int_file_read(void* ctx, File* file, void* buff, uint16_t const bytes_to_read) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     uint16_t bytes_read = 0;
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id =
 | |
|             lfs_file_read(lfs, lfs_handle_get_file(handle), buff, bytes_to_read);
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
| 
 | |
|     if(file->error_id == FSE_OK) {
 | |
|         bytes_read = file->internal_error_id;
 | |
|         file->internal_error_id = 0;
 | |
|     }
 | |
|     return bytes_read;
 | |
| }
 | |
| 
 | |
| static uint16_t
 | |
|     storage_int_file_write(void* ctx, File* file, const void* buff, uint16_t const bytes_to_write) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     uint16_t bytes_written = 0;
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id =
 | |
|             lfs_file_write(lfs, lfs_handle_get_file(handle), buff, bytes_to_write);
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
| 
 | |
|     if(file->error_id == FSE_OK) {
 | |
|         bytes_written = file->internal_error_id;
 | |
|         file->internal_error_id = 0;
 | |
|     }
 | |
|     return bytes_written;
 | |
| }
 | |
| 
 | |
| static bool
 | |
|     storage_int_file_seek(void* ctx, File* file, const uint32_t offset, const bool from_start) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         if(from_start) {
 | |
|             file->internal_error_id =
 | |
|                 lfs_file_seek(lfs, lfs_handle_get_file(handle), offset, LFS_SEEK_SET);
 | |
|         } else {
 | |
|             file->internal_error_id =
 | |
|                 lfs_file_seek(lfs, lfs_handle_get_file(handle), offset, LFS_SEEK_CUR);
 | |
|         }
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static uint64_t storage_int_file_tell(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id = lfs_file_tell(lfs, lfs_handle_get_file(handle));
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
| 
 | |
|     int32_t position = 0;
 | |
|     if(file->error_id == FSE_OK) {
 | |
|         position = file->internal_error_id;
 | |
|         file->internal_error_id = 0;
 | |
|     }
 | |
| 
 | |
|     return position;
 | |
| }
 | |
| 
 | |
| static bool storage_int_file_truncate(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id = lfs_file_tell(lfs, lfs_handle_get_file(handle));
 | |
|         file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
| 
 | |
|         if(file->error_id == FSE_OK) {
 | |
|             uint32_t position = file->internal_error_id;
 | |
|             file->internal_error_id =
 | |
|                 lfs_file_truncate(lfs, lfs_handle_get_file(handle), position);
 | |
|             file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|         }
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|         file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     }
 | |
| 
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static bool storage_int_file_sync(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id = lfs_file_sync(lfs, lfs_handle_get_file(handle));
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static uint64_t storage_int_file_size(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id = lfs_file_size(lfs, lfs_handle_get_file(handle));
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
| 
 | |
|     uint32_t size = 0;
 | |
|     if(file->error_id == FSE_OK) {
 | |
|         size = file->internal_error_id;
 | |
|         file->internal_error_id = 0;
 | |
|     }
 | |
| 
 | |
|     return size;
 | |
| }
 | |
| 
 | |
| static bool storage_int_file_eof(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     bool eof = true;
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         int32_t position = lfs_file_tell(lfs, lfs_handle_get_file(handle));
 | |
|         int32_t size = lfs_file_size(lfs, lfs_handle_get_file(handle));
 | |
| 
 | |
|         if(position < 0) {
 | |
|             file->internal_error_id = position;
 | |
|         } else if(size < 0) {
 | |
|             file->internal_error_id = size;
 | |
|         } else {
 | |
|             file->internal_error_id = LFS_ERR_OK;
 | |
|             eof = (position >= size);
 | |
|         }
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     return eof;
 | |
| }
 | |
| 
 | |
| /******************* Dir Functions *******************/
 | |
| 
 | |
| static bool storage_int_dir_open(void* ctx, File* file, const char* path) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
| 
 | |
|     LFSHandle* handle = lfs_handle_alloc_dir();
 | |
|     storage_set_storage_file_data(file, handle, storage);
 | |
| 
 | |
|     file->internal_error_id = lfs_dir_open(lfs, lfs_handle_get_dir(handle), path);
 | |
|     if(file->internal_error_id >= LFS_ERR_OK) {
 | |
|         lfs_handle_set_open(handle);
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static bool storage_int_dir_close(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id = lfs_dir_close(lfs, lfs_handle_get_dir(handle));
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     lfs_handle_free(handle);
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static bool storage_int_dir_read(
 | |
|     void* ctx,
 | |
|     File* file,
 | |
|     FileInfo* fileinfo,
 | |
|     char* name,
 | |
|     const uint16_t name_length) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         struct lfs_info _fileinfo;
 | |
| 
 | |
|         // LFS returns virtual directories "." and "..", so we read until we get something meaningful or an empty string
 | |
|         do {
 | |
|             file->internal_error_id = lfs_dir_read(lfs, lfs_handle_get_dir(handle), &_fileinfo);
 | |
|             file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|         } while(strcmp(_fileinfo.name, ".") == 0 || strcmp(_fileinfo.name, "..") == 0);
 | |
| 
 | |
|         if(fileinfo != NULL) {
 | |
|             fileinfo->size = _fileinfo.size;
 | |
|             fileinfo->flags = 0;
 | |
|             if(_fileinfo.type & LFS_TYPE_DIR) fileinfo->flags |= FSF_DIRECTORY;
 | |
|         }
 | |
| 
 | |
|         if(name != NULL) {
 | |
|             snprintf(name, name_length, "%s", _fileinfo.name);
 | |
|         }
 | |
| 
 | |
|         // set FSE_NOT_EXIST error on end of directory
 | |
|         if(file->internal_error_id == 0) {
 | |
|             file->error_id = FSE_NOT_EXIST;
 | |
|         }
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|         file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     }
 | |
| 
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| static bool storage_int_dir_rewind(void* ctx, File* file) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSHandle* handle = storage_get_storage_file_data(file, storage);
 | |
| 
 | |
|     if(lfs_handle_is_open(handle)) {
 | |
|         file->internal_error_id = lfs_dir_rewind(lfs, lfs_handle_get_dir(handle));
 | |
|     } else {
 | |
|         file->internal_error_id = LFS_ERR_BADF;
 | |
|     }
 | |
| 
 | |
|     file->error_id = storage_int_parse_error(file->internal_error_id);
 | |
|     return (file->error_id == FSE_OK);
 | |
| }
 | |
| 
 | |
| /******************* Common FS Functions *******************/
 | |
| 
 | |
| static FS_Error storage_int_common_stat(void* ctx, const char* path, FileInfo* fileinfo) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     struct lfs_info _fileinfo;
 | |
|     int result = lfs_stat(lfs, path, &_fileinfo);
 | |
| 
 | |
|     if(fileinfo != NULL) {
 | |
|         fileinfo->size = _fileinfo.size;
 | |
|         fileinfo->flags = 0;
 | |
|         if(_fileinfo.type & LFS_TYPE_DIR) fileinfo->flags |= FSF_DIRECTORY;
 | |
|     }
 | |
| 
 | |
|     return storage_int_parse_error(result);
 | |
| }
 | |
| 
 | |
| static FS_Error storage_int_common_remove(void* ctx, const char* path) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     int result = lfs_remove(lfs, path);
 | |
|     return storage_int_parse_error(result);
 | |
| }
 | |
| 
 | |
| static FS_Error storage_int_common_mkdir(void* ctx, const char* path) {
 | |
|     StorageData* storage = ctx;
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     int result = lfs_mkdir(lfs, path);
 | |
|     return storage_int_parse_error(result);
 | |
| }
 | |
| 
 | |
| static FS_Error storage_int_common_fs_info(
 | |
|     void* ctx,
 | |
|     const char* fs_path,
 | |
|     uint64_t* total_space,
 | |
|     uint64_t* free_space) {
 | |
|     UNUSED(fs_path);
 | |
|     StorageData* storage = ctx;
 | |
| 
 | |
|     lfs_t* lfs = lfs_get_from_storage(storage);
 | |
|     LFSData* lfs_data = lfs_data_get_from_storage(storage);
 | |
| 
 | |
|     if(total_space) {
 | |
|         *total_space = lfs_data->config.block_size * lfs_data->config.block_count;
 | |
|     }
 | |
| 
 | |
|     lfs_ssize_t result = lfs_fs_size(lfs);
 | |
|     if(free_space && (result >= 0)) {
 | |
|         *free_space = (lfs_data->config.block_count - result) * lfs_data->config.block_size;
 | |
|     }
 | |
| 
 | |
|     return storage_int_parse_error(result);
 | |
| }
 | |
| 
 | |
| /******************* Init Storage *******************/
 | |
| static const FS_Api fs_api = {
 | |
|     .file =
 | |
|         {
 | |
|             .open = storage_int_file_open,
 | |
|             .close = storage_int_file_close,
 | |
|             .read = storage_int_file_read,
 | |
|             .write = storage_int_file_write,
 | |
|             .seek = storage_int_file_seek,
 | |
|             .tell = storage_int_file_tell,
 | |
|             .truncate = storage_int_file_truncate,
 | |
|             .size = storage_int_file_size,
 | |
|             .sync = storage_int_file_sync,
 | |
|             .eof = storage_int_file_eof,
 | |
|         },
 | |
|     .dir =
 | |
|         {
 | |
|             .open = storage_int_dir_open,
 | |
|             .close = storage_int_dir_close,
 | |
|             .read = storage_int_dir_read,
 | |
|             .rewind = storage_int_dir_rewind,
 | |
|         },
 | |
|     .common =
 | |
|         {
 | |
|             .stat = storage_int_common_stat,
 | |
|             .mkdir = storage_int_common_mkdir,
 | |
|             .remove = storage_int_common_remove,
 | |
|             .fs_info = storage_int_common_fs_info,
 | |
|         },
 | |
| };
 | |
| 
 | |
| void storage_int_init(StorageData* storage) {
 | |
|     FURI_LOG_I(TAG, "Starting");
 | |
|     LFSData* lfs_data = storage_int_lfs_data_alloc();
 | |
|     FURI_LOG_I(
 | |
|         TAG,
 | |
|         "Config: start %p, read %lu, write %lu, page size: %lu, page count: %lu, cycles: %ld",
 | |
|         (void*)lfs_data->start_address,
 | |
|         lfs_data->config.read_size,
 | |
|         lfs_data->config.prog_size,
 | |
|         lfs_data->config.block_size,
 | |
|         lfs_data->config.block_count,
 | |
|         lfs_data->config.block_cycles);
 | |
| 
 | |
|     storage_int_lfs_mount(lfs_data, storage);
 | |
| 
 | |
|     storage->data = lfs_data;
 | |
|     storage->api.tick = NULL;
 | |
|     storage->fs_api = &fs_api;
 | |
| }
 | 
