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unleashed-firmware/applications/sd-filesystem/sd-filesystem-api.c

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#include "fatfs.h"
#include "filesystem-api.h"
#include "sd-filesystem.h"
/******************* Global vars for api *******************/
static SdFsInfo* fs_info;
/******************* Core Functions *******************/
bool _fs_init(SdFsInfo* _fs_info) {
bool result = true;
_fs_info->mutex = osMutexNew(NULL);
if(_fs_info->mutex == NULL) result = false;
for(uint8_t i = 0; i < SD_FS_MAX_FILES; i++) {
_fs_info->files[i].thread_id = NULL;
}
_fs_info->path = "0:/";
_fs_info->status = SD_NO_CARD;
// store pointer for api fns
fs_info = _fs_info;
return result;
}
bool _fs_lock(SdFsInfo* fs_info) {
api_hal_power_insomnia_enter();
return (osMutexAcquire(fs_info->mutex, osWaitForever) == osOK);
}
bool _fs_unlock(SdFsInfo* fs_info) {
api_hal_power_insomnia_exit();
return (osMutexRelease(fs_info->mutex) == osOK);
}
SDError _get_filedata(SdFsInfo* fs_info, File* file, FileData** filedata, FiledataFilter filter) {
SDError error = SD_OK;
_fs_lock(fs_info);
if(fs_info->status == SD_OK) {
if(file != NULL && file->file_id < SD_FS_MAX_FILES) {
if(fs_info->files[file->file_id].thread_id == osThreadGetId()) {
if(filter == FDF_ANY) {
// any type
*filedata = &fs_info->files[file->file_id];
} else if(filter == FDF_FILE) {
// file type
if(!fs_info->files[file->file_id].is_dir) {
*filedata = &fs_info->files[file->file_id];
} else {
error = SD_NOT_A_FILE;
}
} else if(filter == FDF_DIR) {
// dir type
if(fs_info->files[file->file_id].is_dir) {
*filedata = &fs_info->files[file->file_id];
} else {
error = SD_NOT_A_DIR;
}
}
} else {
error = SD_OTHER_APP;
}
} else {
error = SD_INVALID_PARAMETER;
}
} else {
error = SD_NO_CARD;
}
_fs_unlock(fs_info);
return error;
}
SDError _get_file(SdFsInfo* fs_info, File* file, FileData** filedata) {
return _get_filedata(fs_info, file, filedata, FDF_FILE);
}
SDError _get_dir(SdFsInfo* fs_info, File* file, FileData** filedata) {
return _get_filedata(fs_info, file, filedata, FDF_DIR);
}
SDError _get_any(SdFsInfo* fs_info, File* file, FileData** filedata) {
return _get_filedata(fs_info, file, filedata, FDF_ANY);
}
SDError _fs_status(SdFsInfo* fs_info) {
SDError result;
_fs_lock(fs_info);
result = fs_info->status;
_fs_unlock(fs_info);
return result;
}
void _fs_on_client_app_exit(SdFsInfo* fs_info) {
_fs_lock(fs_info);
for(uint8_t i = 0; i < SD_FS_MAX_FILES; i++) {
if(fs_info->files[i].thread_id == osThreadGetId()) {
if(fs_info->files[i].is_dir) {
// TODO close dir
} else {
// TODO close file
}
}
}
_fs_unlock(fs_info);
}
FS_Error _fs_parse_error(SDError error) {
FS_Error result;
switch(error) {
case SD_OK:
result = FSE_OK;
break;
case SD_INT_ERR:
result = FSE_INTERNAL;
break;
case SD_NO_FILE:
result = FSE_NOT_EXIST;
break;
case SD_NO_PATH:
result = FSE_NOT_EXIST;
break;
case SD_INVALID_NAME:
result = FSE_INVALID_NAME;
break;
case SD_DENIED:
result = FSE_DENIED;
break;
case SD_EXIST:
result = FSE_EXIST;
break;
case SD_INVALID_OBJECT:
result = FSE_INTERNAL;
break;
case SD_WRITE_PROTECTED:
result = FSE_INTERNAL;
break;
case SD_INVALID_DRIVE:
result = FSE_INTERNAL;
break;
case SD_NOT_ENABLED:
result = FSE_INTERNAL;
break;
case SD_NO_FILESYSTEM:
result = FSE_NOT_READY;
break;
case SD_MKFS_ABORTED:
result = FSE_INTERNAL;
break;
case SD_TIMEOUT:
result = FSE_INTERNAL;
break;
case SD_LOCKED:
result = FSE_INTERNAL;
break;
case SD_NOT_ENOUGH_CORE:
result = FSE_INTERNAL;
break;
case SD_TOO_MANY_OPEN_FILES:
result = FSE_INTERNAL;
break;
case SD_INVALID_PARAMETER:
result = FSE_INVALID_PARAMETER;
break;
case SD_NO_CARD:
result = FSE_NOT_READY;
break;
case SD_NOT_A_FILE:
result = FSE_INVALID_PARAMETER;
break;
case SD_NOT_A_DIR:
result = FSE_INVALID_PARAMETER;
break;
case SD_OTHER_APP:
result = FSE_INTERNAL;
break;
default:
result = FSE_INTERNAL;
break;
}
return result;
}
/******************* File Functions *******************/
// Open/Create a file
bool fs_file_open(File* file, const char* path, FS_AccessMode access_mode, FS_OpenMode open_mode) {
SDFile* sd_file = NULL;
_fs_lock(fs_info);
for(uint8_t index = 0; index < SD_FS_MAX_FILES; index++) {
FileData* filedata = &fs_info->files[index];
if(filedata->thread_id == NULL) {
file->file_id = index;
memset(&(filedata->data), 0, sizeof(SDFileDirStorage));
filedata->thread_id = osThreadGetId();
filedata->is_dir = false;
sd_file = &(filedata->data.file);
break;
}
}
_fs_unlock(fs_info);
if(sd_file == NULL) {
file->internal_error_id = SD_TOO_MANY_OPEN_FILES;
} else {
uint8_t _mode = 0;
if(access_mode & FSAM_READ) _mode |= FA_READ;
if(access_mode & FSAM_WRITE) _mode |= FA_WRITE;
if(open_mode & FSOM_OPEN_EXISTING) _mode |= FA_OPEN_EXISTING;
if(open_mode & FSOM_OPEN_ALWAYS) _mode |= FA_OPEN_ALWAYS;
if(open_mode & FSOM_OPEN_APPEND) _mode |= FA_OPEN_APPEND;
if(open_mode & FSOM_CREATE_NEW) _mode |= FA_CREATE_NEW;
if(open_mode & FSOM_CREATE_ALWAYS) _mode |= FA_CREATE_ALWAYS;
file->internal_error_id = f_open(sd_file, path, _mode);
}
// TODO on exit
//furiac_onexit(_fs_on_client_app_exit, fs_info);
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
// Close an opened file
bool fs_file_close(File* file) {
FileData* filedata = NULL;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
file->internal_error_id = f_close(&filedata->data.file);
_fs_lock(fs_info);
filedata->thread_id = NULL;
_fs_unlock(fs_info);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
// Read data from the file
uint16_t fs_file_read(File* file, void* buff, uint16_t const bytes_to_read) {
FileData* filedata = NULL;
uint16_t bytes_readed = 0;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
file->internal_error_id = f_read(&filedata->data.file, buff, bytes_to_read, &bytes_readed);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return bytes_readed;
}
// Write data to the file
uint16_t fs_file_write(File* file, const void* buff, uint16_t const bytes_to_write) {
FileData* filedata = NULL;
uint16_t bytes_written = 0;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
file->internal_error_id =
f_write(&filedata->data.file, buff, bytes_to_write, &bytes_written);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return bytes_written;
}
// Move read/write pointer, expand size
bool fs_file_seek(File* file, const uint32_t offset, const bool from_start) {
FileData* filedata = NULL;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
if(from_start) {
file->internal_error_id = f_lseek(&filedata->data.file, offset);
} else {
uint64_t position = f_tell(&filedata->data.file);
position += offset;
file->internal_error_id = f_lseek(&filedata->data.file, position);
}
}
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
// Tell pointer position
uint64_t fs_file_tell(File* file) {
FileData* filedata = NULL;
uint64_t position = 0;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
position = f_tell(&filedata->data.file);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return position;
}
// Truncate file size to current pointer value
bool fs_file_truncate(File* file) {
FileData* filedata = NULL;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
file->internal_error_id = f_truncate(&filedata->data.file);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
// Flush cached data
bool fs_file_sync(File* file) {
FileData* filedata = NULL;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
file->internal_error_id = f_sync(&filedata->data.file);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
// Get size
uint64_t fs_file_size(File* file) {
FileData* filedata = NULL;
uint64_t size = 0;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
size = f_size(&filedata->data.file);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return size;
}
// Test EOF
bool fs_file_eof(File* file) {
FileData* filedata = NULL;
bool eof = true;
file->internal_error_id = _get_file(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
eof = f_eof(&filedata->data.file);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return eof;
}
/******************* Dir Functions *******************/
// Open directory
bool fs_dir_open(File* file, const char* path) {
SDDir* sd_dir = NULL;
_fs_lock(fs_info);
for(uint8_t index = 0; index < SD_FS_MAX_FILES; index++) {
FileData* filedata = &fs_info->files[index];
if(filedata->thread_id == NULL) {
file->file_id = index;
memset(&(filedata->data), 0, sizeof(SDFileDirStorage));
filedata->thread_id = osThreadGetId();
filedata->is_dir = true;
sd_dir = &(filedata->data.dir);
break;
}
}
_fs_unlock(fs_info);
if(sd_dir == NULL) {
file->internal_error_id = SD_TOO_MANY_OPEN_FILES;
} else {
file->internal_error_id = f_opendir(sd_dir, path);
}
// TODO on exit
//furiac_onexit(_fs_on_client_app_exit, fs_info);
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
// Close directory
bool fs_dir_close(File* file) {
FileData* filedata = NULL;
file->internal_error_id = _get_dir(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
file->internal_error_id = f_closedir(&filedata->data.dir);
_fs_lock(fs_info);
filedata->thread_id = NULL;
_fs_unlock(fs_info);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
// Read next file info and name from directory
bool fs_dir_read(File* file, FileInfo* fileinfo, char* name, const uint16_t name_length) {
FileData* filedata = NULL;
file->internal_error_id = _get_dir(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
SDFileInfo _fileinfo;
file->internal_error_id = f_readdir(&filedata->data.dir, &_fileinfo);
if(fileinfo != NULL) {
fileinfo->date.value = _fileinfo.fdate;
fileinfo->time.value = _fileinfo.ftime;
fileinfo->size = _fileinfo.fsize;
fileinfo->flags = 0;
if(_fileinfo.fattrib & AM_RDO) fileinfo->flags |= FSF_READ_ONLY;
if(_fileinfo.fattrib & AM_HID) fileinfo->flags |= FSF_HIDDEN;
if(_fileinfo.fattrib & AM_SYS) fileinfo->flags |= FSF_SYSTEM;
if(_fileinfo.fattrib & AM_DIR) fileinfo->flags |= FSF_DIRECTORY;
if(_fileinfo.fattrib & AM_ARC) fileinfo->flags |= FSF_ARCHIVE;
}
if(name != NULL && name_length > 0) {
strlcpy(name, _fileinfo.fname, name_length);
}
}
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
bool fs_dir_rewind(File* file) {
FileData* filedata = NULL;
file->internal_error_id = _get_dir(fs_info, file, &filedata);
if(file->internal_error_id == SD_OK) {
file->internal_error_id = f_readdir(&filedata->data.dir, NULL);
}
file->error_id = _fs_parse_error(file->internal_error_id);
return (file->internal_error_id == SD_OK);
}
/******************* Common FS Functions *******************/
// Get info about file/dir
FS_Error
fs_common_info(const char* path, FileInfo* fileinfo, char* name, const uint16_t name_length) {
SDFileInfo _fileinfo;
SDError fresult = _fs_status(fs_info);
if(fresult == SD_OK) {
fresult = f_stat(path, &_fileinfo);
if((FRESULT)fresult == FR_OK) {
if(fileinfo != NULL) {
fileinfo->date.value = _fileinfo.fdate;
fileinfo->time.value = _fileinfo.ftime;
fileinfo->size = _fileinfo.fsize;
fileinfo->flags = 0;
if(_fileinfo.fattrib & AM_RDO) fileinfo->flags |= FSF_READ_ONLY;
if(_fileinfo.fattrib & AM_HID) fileinfo->flags |= FSF_HIDDEN;
if(_fileinfo.fattrib & AM_SYS) fileinfo->flags |= FSF_SYSTEM;
if(_fileinfo.fattrib & AM_DIR) fileinfo->flags |= FSF_DIRECTORY;
if(_fileinfo.fattrib & AM_ARC) fileinfo->flags |= FSF_ARCHIVE;
}
if(name != NULL && name_length > 0) {
strlcpy(name, _fileinfo.fname, name_length);
}
}
}
return _fs_parse_error(fresult);
}
// Delete file/dir
// File/dir must not have read-only attribute.
// File/dir must be empty.
// File/dir must not be opened, or the FAT volume can be collapsed. FF_FS_LOCK fix that.
FS_Error fs_common_remove(const char* path) {
SDError fresult = _fs_status(fs_info);
if(fresult == SD_OK) {
fresult = f_unlink(path);
}
return _fs_parse_error(fresult);
}
// Rename file/dir
// File/dir must not be opened, or the FAT volume can be collapsed. FF_FS_LOCK fix that.
FS_Error fs_common_rename(const char* old_path, const char* new_path) {
SDError fresult = _fs_status(fs_info);
if(fresult == SD_OK) {
fresult = f_rename(old_path, new_path);
}
return _fs_parse_error(fresult);
}
// Set attributes of file/dir
// For example:
// set "read only" flag and remove "hidden" flag
// fs_common_set_attr("file.txt", FSF_READ_ONLY, FSF_READ_ONLY | FSF_HIDDEN);
FS_Error fs_common_set_attr(const char* path, uint8_t attr, uint8_t mask) {
SDError fresult = _fs_status(fs_info);
if(fresult == SD_OK) {
uint8_t _mask = 0;
uint8_t _attr = 0;
if(mask & FSF_READ_ONLY) _mask |= AM_RDO;
if(mask & FSF_HIDDEN) _mask |= AM_HID;
if(mask & FSF_SYSTEM) _mask |= AM_SYS;
if(mask & FSF_DIRECTORY) _mask |= AM_DIR;
if(mask & FSF_ARCHIVE) _mask |= AM_ARC;
if(attr & FSF_READ_ONLY) _attr |= AM_RDO;
if(attr & FSF_HIDDEN) _attr |= AM_HID;
if(attr & FSF_SYSTEM) _attr |= AM_SYS;
if(attr & FSF_DIRECTORY) _attr |= AM_DIR;
if(attr & FSF_ARCHIVE) _attr |= AM_ARC;
fresult = f_chmod(path, attr, mask);
}
return _fs_parse_error(fresult);
}
// Set time of file/dir
FS_Error fs_common_set_time(const char* path, FileDateUnion date, FileTimeUnion time) {
SDError fresult = _fs_status(fs_info);
if(fresult == SD_OK) {
SDFileInfo _fileinfo;
_fileinfo.fdate = date.value;
_fileinfo.ftime = time.value;
fresult = f_utime(path, &_fileinfo);
}
return _fs_parse_error(fresult);
}
// Create new directory
FS_Error fs_common_mkdir(const char* path) {
SDError fresult = _fs_status(fs_info);
if(fresult == SD_OK) {
fresult = f_mkdir(path);
}
return _fs_parse_error(fresult);
}
// Get common info about FS
FS_Error fs_get_fs_info(uint64_t* total_space, uint64_t* free_space) {
SDError fresult = _fs_status(fs_info);
if(fresult == SD_OK) {
DWORD free_clusters;
FATFS* fs;
fresult = f_getfree("0:/", &free_clusters, &fs);
if((FRESULT)fresult == FR_OK) {
uint32_t total_sectors = (fs->n_fatent - 2) * fs->csize;
uint32_t free_sectors = free_clusters * fs->csize;
uint16_t sector_size = _MAX_SS;
#if _MAX_SS != _MIN_SS
sector_size = fs->ssize;
#endif
if(total_space != NULL) {
*total_space = (uint64_t)total_sectors * (uint64_t)sector_size;
}
if(free_space != NULL) {
*free_space = (uint64_t)free_sectors * (uint64_t)sector_size;
}
}
}
return _fs_parse_error(fresult);
}
/******************* Error Reporting Functions *******************/
// Get common error description
const char* fs_error_get_desc(FS_Error error_id) {
const char* result;
switch(error_id) {
case(FSE_OK):
result = "OK";
break;
case(FSE_NOT_READY):
result = "filesystem not ready";
break;
case(FSE_EXIST):
result = "file/dir already exist";
break;
case(FSE_NOT_EXIST):
result = "file/dir not exist";
break;
case(FSE_INVALID_PARAMETER):
result = "invalid parameter";
break;
case(FSE_DENIED):
result = "access denied";
break;
case(FSE_INVALID_NAME):
result = "invalid name/path";
break;
case(FSE_INTERNAL):
result = "internal error";
break;
case(FSE_NOT_IMPLEMENTED):
result = "function not implemented";
break;
default:
result = "unknown error";
break;
}
return result;
}
// Get internal error description
const char* fs_error_get_internal_desc(uint32_t internal_error_id) {
const char* result;
switch(internal_error_id) {
case(SD_OK):
result = "OK";
break;
case(SD_DISK_ERR):
result = "disk error";
break;
case(SD_INT_ERR):
result = "internal error";
break;
case(SD_NO_FILE):
result = "no file";
break;
case(SD_NO_PATH):
result = "no path";
break;
case(SD_INVALID_NAME):
result = "invalid name";
break;
case(SD_DENIED):
result = "access denied";
break;
case(SD_EXIST):
result = "file/dir exist";
break;
case(SD_INVALID_OBJECT):
result = "invalid object";
break;
case(SD_WRITE_PROTECTED):
result = "write protected";
break;
case(SD_INVALID_DRIVE):
result = "invalid drive";
break;
case(SD_NOT_ENABLED):
result = "not enabled";
break;
case(SD_NO_FILESYSTEM):
result = "no filesystem";
break;
case(SD_MKFS_ABORTED):
result = "aborted";
break;
case(SD_TIMEOUT):
result = "timeout";
break;
case(SD_LOCKED):
result = "file locked";
break;
case(SD_NOT_ENOUGH_CORE):
result = "not enough memory";
break;
case(SD_TOO_MANY_OPEN_FILES):
result = "too many open files";
break;
case(SD_INVALID_PARAMETER):
result = "invalid parameter";
break;
case(SD_NO_CARD):
result = "no SD Card";
break;
case(SD_NOT_A_FILE):
result = "not a file";
break;
case(SD_NOT_A_DIR):
result = "not a directory";
break;
case(SD_OTHER_APP):
result = "opened by other app";
break;
case(SD_LOW_LEVEL_ERR):
result = "low level error";
break;
default:
result = "unknown error";
break;
}
return result;
}
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