Using littlefs (#438)
* add submodule littlefs * base fs * Save settings using littlefs * Small fixes and suggestions from PR * More small fixes from PR suggestions * Code clean up * Change SpiNorFlash functions to be private in FSmain
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61a4642221
commit
084123b752
@ -1,3 +1,6 @@
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[submodule "src/libs/lvgl"]
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path = src/libs/lvgl
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url = https://github.com/joaquimorg/lvgl.git
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[submodule "src/libs/littlefs"]
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path = src/libs/littlefs
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url = https://github.com/littlefs-project/littlefs.git
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#include "FS.h"
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#include <cstring>
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#include <littlefs/lfs.h>
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#include <lvgl/lvgl.h>
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using namespace Pinetime::Controllers;
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FS::FS(Pinetime::Drivers::SpiNorFlash& driver) :
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flashDriver{ driver },
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lfsConfig{
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.context = this,
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.read = SectorRead,
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.prog = SectorProg,
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.erase = SectorErase,
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.sync = SectorSync,
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.read_size = 16,
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.prog_size = 8,
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.block_size = blockSize,
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.block_count = size / blockSize,
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.block_cycles = 1000u,
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.cache_size = 16,
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.lookahead_size = 16,
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.name_max = 50,
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.attr_max = 50,
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}
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{ }
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void FS::Init() {
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// try mount
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int err = lfs_mount(&lfs, &lfsConfig);
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// reformat if we can't mount the filesystem
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// this should only happen on the first boot
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if (err != LFS_ERR_OK) {
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lfs_format(&lfs, &lfsConfig);
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err = lfs_mount(&lfs, &lfsConfig);
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if (err != LFS_ERR_OK) {
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return;
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}
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}
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#ifndef PINETIME_IS_RECOVERY
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VerifyResource();
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LVGLFileSystemInit();
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#endif
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}
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void FS::VerifyResource() {
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// validate the resource metadata
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resourcesValid = true;
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}
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int FS::FileOpen(lfs_file_t* file_p, const char* fileName, const int flags) {
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return lfs_file_open(&lfs, file_p, fileName, flags);
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}
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int FS::FileClose(lfs_file_t* file_p) {
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return lfs_file_close(&lfs, file_p);
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}
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int FS::FileRead(lfs_file_t* file_p, uint8_t* buff, uint32_t size) {
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return lfs_file_read(&lfs, file_p, buff, size);
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}
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int FS::FileWrite(lfs_file_t* file_p, const uint8_t* buff, uint32_t size) {
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return lfs_file_write(&lfs, file_p, buff, size);
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}
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int FS::FileSeek(lfs_file_t* file_p, uint32_t pos) {
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return lfs_file_seek(&lfs, file_p, pos, LFS_SEEK_SET);
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}
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int FS::FileDelete(const char* fileName) {
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return lfs_remove(&lfs, fileName);
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}
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int FS::DirCreate(const char* path) {
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return lfs_mkdir(&lfs, path);
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}
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// Delete directory and all files inside
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int FS::DirDelete(const char* path) {
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lfs_dir_t lfs_dir;
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lfs_info entryInfo;
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int err;
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err = lfs_dir_open(&lfs, &lfs_dir, path);
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if (err) {
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return err;
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}
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while (lfs_dir_read(&lfs, &lfs_dir, &entryInfo)) {
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lfs_remove(&lfs, entryInfo.name);
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}
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lfs_dir_close(&lfs, &lfs_dir);
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return LFS_ERR_OK;
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}
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/*
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----------- Interface between littlefs and SpiNorFlash -----------
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*/
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int FS::SectorSync(const struct lfs_config* c) {
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return 0;
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}
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int FS::SectorErase(const struct lfs_config* c, lfs_block_t block) {
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Pinetime::Controllers::FS& lfs = *(static_cast<Pinetime::Controllers::FS*>(c->context));
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const size_t address = startAddress + (block * blockSize);
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lfs.flashDriver.SectorErase(address);
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return lfs.flashDriver.EraseFailed() ? -1 : 0;
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}
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int FS::SectorProg(const struct lfs_config* c, lfs_block_t block, lfs_off_t off, const void* buffer, lfs_size_t size) {
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Pinetime::Controllers::FS& lfs = *(static_cast<Pinetime::Controllers::FS*>(c->context));
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const size_t address = startAddress + (block * blockSize) + off;
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lfs.flashDriver.Write(address, (uint8_t*) buffer, size);
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return lfs.flashDriver.ProgramFailed() ? -1 : 0;
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}
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int FS::SectorRead(const struct lfs_config* c, lfs_block_t block, lfs_off_t off, void* buffer, lfs_size_t size) {
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Pinetime::Controllers::FS& lfs = *(static_cast<Pinetime::Controllers::FS*>(c->context));
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const size_t address = startAddress + (block * blockSize) + off;
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lfs.flashDriver.Read(address, static_cast<uint8_t*>(buffer), size);
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return 0;
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}
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/*
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----------- LVGL filesystem integration -----------
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*/
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namespace {
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lv_fs_res_t lvglOpen(lv_fs_drv_t* drv, void* file_p, const char* path, lv_fs_mode_t mode) {
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lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
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FS* filesys = static_cast<FS*>(drv->user_data);
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filesys->FileOpen(file, path, LFS_O_RDONLY);
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if (file->type == 0) {
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return LV_FS_RES_FS_ERR;
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}
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else {
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return LV_FS_RES_OK;
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}
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}
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lv_fs_res_t lvglClose(lv_fs_drv_t* drv, void* file_p) {
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FS* filesys = static_cast<FS*>(drv->user_data);
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lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
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filesys->FileClose(file);
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return LV_FS_RES_OK;
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}
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lv_fs_res_t lvglRead(lv_fs_drv_t* drv, void* file_p, void* buf, uint32_t btr, uint32_t* br) {
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FS* filesys = static_cast<FS*>(drv->user_data);
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lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
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filesys->FileRead(file, static_cast<uint8_t*>(buf), btr);
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*br = btr;
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return LV_FS_RES_OK;
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}
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lv_fs_res_t lvglSeek(lv_fs_drv_t* drv, void* file_p, uint32_t pos) {
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FS* filesys = static_cast<FS*>(drv->user_data);
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lfs_file_t* file = static_cast<lfs_file_t*>(file_p);
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filesys->FileSeek(file, pos);
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return LV_FS_RES_OK;
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}
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}
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void FS::LVGLFileSystemInit() {
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lv_fs_drv_t fs_drv;
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lv_fs_drv_init(&fs_drv);
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fs_drv.file_size = sizeof(lfs_file_t);
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fs_drv.letter = 'F';
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fs_drv.open_cb = lvglOpen;
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fs_drv.close_cb = lvglClose;
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fs_drv.read_cb = lvglRead;
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fs_drv.seek_cb = lvglSeek;
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fs_drv.user_data = this;
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lv_fs_drv_register(&fs_drv);
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}
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#pragma once
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#include <cstdint>
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#include "drivers/SpiNorFlash.h"
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#include <littlefs/lfs.h>
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namespace Pinetime {
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namespace Controllers {
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class FS {
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public:
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FS(Pinetime::Drivers::SpiNorFlash&);
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void Init();
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void LVGLFileSystemInit();
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int FileOpen(lfs_file_t* file_p, const char* fileName, const int flags);
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int FileClose(lfs_file_t* file_p);
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int FileRead(lfs_file_t* file_p, uint8_t* buff, uint32_t size);
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int FileWrite(lfs_file_t* file_p, const uint8_t* buff, uint32_t size);
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int FileSeek(lfs_file_t* file_p, uint32_t pos);
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int FileDelete(const char* fileName);
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int DirCreate(const char* path);
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int DirDelete(const char* path);
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void VerifyResource();
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private:
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Pinetime::Drivers::SpiNorFlash& flashDriver;
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/*
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* External Flash MAP (4 MBytes)
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*
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* 0x000000 +---------------------------------------+
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* | Bootloader Assets |
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* | 256 KBytes |
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* | |
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* 0x040000 +---------------------------------------+
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* | OTA |
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* | 464 KBytes |
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* | |
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* | |
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* | |
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* 0x0B4000 +---------------------------------------+
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* | File System |
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* | |
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* | |
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* | |
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* | |
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* 0x400000 +---------------------------------------+
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*
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*/
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static constexpr size_t startAddress = 0x0B4000;
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static constexpr size_t size = 0x3C0000;
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static constexpr size_t blockSize = 4096;
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bool resourcesValid = false;
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const struct lfs_config lfsConfig;
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lfs_t lfs;
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static int SectorSync(const struct lfs_config* c);
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static int SectorErase(const struct lfs_config* c, lfs_block_t block);
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static int SectorProg(const struct lfs_config* c, lfs_block_t block, lfs_off_t off, const void* buffer, lfs_size_t size);
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static int SectorRead(const struct lfs_config* c, lfs_block_t block, lfs_off_t off, void* buffer, lfs_size_t size);
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};
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}
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}
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@ -0,0 +1 @@
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Subproject commit ead50807f1ca3fdf2da00b77a0ce02651ded2d13
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