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#include "components/fs/FS.h"
#include <cstring>
#include <littlefs/lfs.h>
#include <lvgl/lvgl.h>
using namespace Pinetime::Controllers;
FS::FS(Pinetime::Drivers::SpiNorFlash& driver)
: flashDriver {driver},
lfsConfig {
.context = this,
.read = SectorRead,
.prog = SectorProg,
.erase = SectorErase,
.sync = SectorSync,
.read_size = 16,
.prog_size = 8,
.block_size = blockSize,
.block_count = size / blockSize,
.block_cycles = 1000u,
.cache_size = 16,
.lookahead_size = 16,
.name_max = 50,
.attr_max = 50,
} {
}
void FS::Init() {
// try mount
int err = lfs_mount(&lfs, &lfsConfig);
// reformat if we can't mount the filesystem
// this should only happen on the first boot
if (err != LFS_ERR_OK) {
lfs_format(&lfs, &lfsConfig);
err = lfs_mount(&lfs, &lfsConfig);
if (err != LFS_ERR_OK) {
return;
}
}
#ifndef PINETIME_IS_RECOVERY
VerifyResource();
LVGLFileSystemInit();
#endif
}
void FS::VerifyResource() {
// validate the resource metadata
resourcesValid = true;
}
int FS::FileOpen(lfs_file_t* file_p, const char* fileName, const int flags) {
return lfs_file_open(&lfs, file_p, fileName, flags);
}
int FS::FileClose(lfs_file_t* file_p) {
return lfs_file_close(&lfs, file_p);
}
int FS::FileRead(lfs_file_t* file_p, uint8_t* buff, uint32_t size) {
return lfs_file_read(&lfs, file_p, buff, size);
}
int FS::FileWrite(lfs_file_t* file_p, const uint8_t* buff, uint32_t size) {
return lfs_file_write(&lfs, file_p, buff, size);
}
int FS::FileSeek(lfs_file_t* file_p, uint32_t pos) {
return lfs_file_seek(&lfs, file_p, pos, LFS_SEEK_SET);
}
int FS::FileDelete(const char* fileName) {
return lfs_remove(&lfs, fileName);
}
int FS::DirOpen(const char* path, lfs_dir_t* lfs_dir) {
return lfs_dir_open(&lfs, lfs_dir, path);
}
int FS::DirClose(lfs_dir_t* lfs_dir) {
return lfs_dir_close(&lfs, lfs_dir);
}
int FS::DirRead(lfs_dir_t* dir, lfs_info* info) {
return lfs_dir_read(&lfs, dir, info);
}
int FS::DirRewind(lfs_dir_t* dir) {
return lfs_dir_rewind(&lfs, dir);
}
int FS::DirCreate(const char* path) {
return lfs_mkdir(&lfs, path);
}
int FS::Rename(const char* oldPath, const char* newPath) {
return lfs_rename(&lfs, oldPath, newPath);
}
int FS::Stat(const char* path, lfs_info* info) {
return lfs_stat(&lfs, path, info);
}
lfs_ssize_t FS::GetFSSize() {
return lfs_fs_size(&lfs);
}
/*
----------- Interface between littlefs and SpiNorFlash -----------
*/
int FS::SectorSync(const struct lfs_config* c) {
return 0;
}
int FS::SectorErase(const struct lfs_config* c, lfs_block_t block) {
Pinetime::Controllers::FS& lfs = *(static_cast<Pinetime::Controllers::FS*>(c->context));
const size_t address = startAddress + (block * blockSize);
lfs.flashDriver.SectorErase(address);
return lfs.flashDriver.EraseFailed() ? -1 : 0;
}
int FS::SectorProg(const struct lfs_config* c, lfs_block_t block, lfs_off_t off, const void* buffer, lfs_size_t size) {
Pinetime::Controllers::FS& lfs = *(static_cast<Pinetime::Controllers::FS*>(c->context));
const size_t address = startAddress + (block * blockSize) + off;
lfs.flashDriver.Write(address, (uint8_t*) buffer, size);
return lfs.flashDriver.ProgramFailed() ? -1 : 0;
}
int FS::SectorRead(const struct lfs_config* c, lfs_block_t block, lfs_off_t off, void* buffer, lfs_size_t size) {
Pinetime::Controllers::FS& lfs = *(static_cast<Pinetime::Controllers::FS*>(c->context));
const size_t address = startAddress + (block * blockSize) + off;
lfs.flashDriver.Read(address, static_cast<uint8_t*>(buffer), size);
return 0;
}
/*
----------- LVGL filesystem integration -----------
*/
namespace {
lv_fs_res_t lvglOpen(lv_fs_drv_t* drv, void* file_p, const char* path, lv_fs_mode_t mode) {
lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
FS* filesys = static_cast<FS*>(drv->user_data);
int res = filesys->FileOpen(file, path, LFS_O_RDONLY);
if (res == 0) {
if (file->type == 0) {
return LV_FS_RES_FS_ERR;
} else {
return LV_FS_RES_OK;
}
}
return LV_FS_RES_NOT_EX;
}
lv_fs_res_t lvglClose(lv_fs_drv_t* drv, void* file_p) {
FS* filesys = static_cast<FS*>(drv->user_data);
lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
filesys->FileClose(file);
return LV_FS_RES_OK;
}
lv_fs_res_t lvglRead(lv_fs_drv_t* drv, void* file_p, void* buf, uint32_t btr, uint32_t* br) {
FS* filesys = static_cast<FS*>(drv->user_data);
lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
filesys->FileRead(file, static_cast<uint8_t*>(buf), btr);
*br = btr;
return LV_FS_RES_OK;
}
lv_fs_res_t lvglSeek(lv_fs_drv_t* drv, void* file_p, uint32_t pos) {
FS* filesys = static_cast<FS*>(drv->user_data);
lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
filesys->FileSeek(file, pos);
return LV_FS_RES_OK;
}
}
void FS::LVGLFileSystemInit() {
lv_fs_drv_t fs_drv;
lv_fs_drv_init(&fs_drv);
fs_drv.file_size = sizeof(lfs_file_t);
fs_drv.letter = 'F';
fs_drv.open_cb = lvglOpen;
fs_drv.close_cb = lvglClose;
fs_drv.read_cb = lvglRead;
fs_drv.seek_cb = lvglSeek;
fs_drv.user_data = this;
lv_fs_drv_register(&fs_drv);
}
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