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littlefs2 impl stuff

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This commit is contained in:
Empire Phoenix
2025-09-17 01:36:53 +02:00
parent 8b938e7687
commit 4c54edbcea
4 changed files with 124 additions and 58 deletions
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63
rust/src/hal/LittleFS2StorageAdapter.rs Normal file
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@@ -0,0 +1,63 @@
use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
use esp_bootloader_esp_idf::partitions::FlashRegion;
use esp_storage::FlashStorage;
use littlefs2::consts::U1 as lfs2Array1;
use littlefs2::consts::U512 as lfs2Array512;
use littlefs2::driver::Storage as lfs2Storage;
use littlefs2::fs::Filesystem as lfs2Filesystem;
use littlefs2::io::Error as lfs2Error;
use littlefs2::io::Result as lfs2Result;
use log::error;
pub struct LittleFs2Filesystem {
pub(crate) storage: &'static mut FlashRegion<'static, FlashStorage>,
}
impl lfs2Storage for LittleFs2Filesystem {
const READ_SIZE: usize = 512;
const WRITE_SIZE: usize = 512;
const BLOCK_SIZE: usize = 32 * 1024; //usually optimal for flash access
const BLOCK_COUNT: usize = 8 * 1024 * 1024 / 32 * 1024; //8mb in 32blocks
const BLOCK_CYCLES: isize = 0;
type CACHE_SIZE = lfs2Array512;
type LOOKAHEAD_SIZE = lfs2Array1;
fn read(&mut self, off: usize, buf: &mut [u8]) -> lfs2Result<usize> {
let read_size: usize = Self::READ_SIZE;
assert_eq!(off % read_size, 0);
assert_eq!(buf.len() % read_size, 0);
match self.storage.read(off as u32, buf) {
anyhow::Result::Ok(..) => lfs2Result::Ok(buf.len()),
Err(err) => {
error!("Littlefs2Filesystem read error: {:?}", err);
Err(lfs2Error::IO)
}
}
}
fn write(&mut self, off: usize, data: &[u8]) -> lfs2Result<usize> {
let write_size: usize = Self::WRITE_SIZE;
assert_eq!(off % write_size, 0);
assert_eq!(data.len() % write_size, 0);
match self.storage.write(off as u32, data) {
anyhow::Result::Ok(..) => lfs2Result::Ok(data.len()),
Err(err) => {
error!("Littlefs2Filesystem write error: {:?}", err);
Err(lfs2Error::IO)
}
}
}
fn erase(&mut self, off: usize, len: usize) -> lfs2Result<usize> {
let block_size: usize = Self::BLOCK_SIZE;
debug_assert!(off % block_size == 0);
debug_assert!(len % block_size == 0);
match self.storage.erase(off as u32, len as u32) {
anyhow::Result::Ok(..) => lfs2Result::Ok(len),
Err(err) => {
error!("Littlefs2Filesystem erase error: {:?}", err);
Err(lfs2Error::IO)
}
}
}
}

78
rust/src/hal/esp.rs
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@@ -6,6 +6,7 @@ use anyhow::{anyhow, bail, Context};
use chrono::{DateTime, Utc};
use serde::Serialize;
use crate::hal::LittleFS2StorageAdapter::LittleFs2Filesystem;
use alloc::string::ToString;
use alloc::sync::Arc;
use alloc::{format, string::String, vec::Vec};
@@ -32,6 +33,8 @@ use esp_wifi::wifi::{
AccessPointConfiguration, AccessPointInfo, Configuration, Interfaces, ScanConfig,
ScanTypeConfig, WifiController, WifiDevice, WifiEvent, WifiState,
};
use littlefs2::fs::Filesystem;
use littlefs2_core::{FileType, PathBuf};
use log::{info, warn};
#[link_section = ".rtc.data"]
@@ -54,8 +57,6 @@ pub struct FileList {
total: usize,
used: usize,
files: Vec<FileInfo>,
file_system_corrupt: Option<String>,
iter_error: Option<String>,
}
pub struct FileSystemSizeInfo {
@@ -70,6 +71,7 @@ pub struct MqttClient<'a> {
base_topic: heapless::String<64>,
}
pub struct Esp<'a> {
pub fs: Arc<Mutex<CriticalSectionRawMutex, Filesystem<'static, LittleFs2Filesystem>>>,
pub rng: Rng,
//first starter (ap or sta will take these)
pub interfaces: Option<Interfaces<'static>>,
@@ -432,60 +434,32 @@ impl Esp<'_> {
// })
}
pub(crate) async fn list_files(&self) -> FileList {
return FileList {
pub(crate) async fn list_files(&self) -> anyhow::Result<FileList> {
let path = PathBuf::new();
let mut result = FileList {
total: 0,
used: 0,
file_system_corrupt: None,
files: Vec::new(),
iter_error: None,
};
//
// let storage = CString::new(Self::SPIFFS_PARTITION_NAME).unwrap();
//
// let mut file_system_corrupt = None;
//
// let mut iter_error = None;
// let mut result = Vec::new();
//
// let filepath = Path::new(Self::BASE_PATH);
// let read_dir = fs::read_dir(filepath);
// match read_dir {
// OkStd(read_dir) => {
// for item in read_dir {
// match item {
// OkStd(file) => {
// let f = FileInfo {
// filename: file.file_name().into_string().unwrap(),
// size: file.metadata().map(|it| it.len()).unwrap_or_default()
// as usize,
// };
// result.push(f);
// }
// Err(err) => {
// iter_error = Some(format!("{err:?}"));
// break;
// }
// }
// }
// }
// Err(err) => {
// file_system_corrupt = Some(format!("{err:?}"));
// }
// }
// let mut total: usize = 0;
// let mut used: usize = 0;
// unsafe {
// esp_spiffs_info(storage.as_ptr(), &mut total, &mut used);
// }
//
// FileList {
// total,
// used,
// file_system_corrupt,
// files: result,
// iter_error,
// }
match self.fs.lock().await.read_dir_and_then(&path, |dir| {
for entry in dir {
let e = entry?;
result.files.push(FileInfo {
filename: e.path().to_string(),
size: e.metadata().len(),
});
}
Result::Ok(())
}) {
Ok(_) => {}
Err(err) => {
bail!(format!("{err:?}"))
}
}
Ok(result)
}
pub(crate) async fn delete_file(&self, _filename: &str) -> anyhow::Result<()> {
bail!("todo");

39
rust/src/hal/mod.rs
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@@ -1,3 +1,4 @@
mod LittleFS2StorageAdapter;
pub(crate) mod battery;
pub mod esp;
mod initial_hal;
@@ -22,7 +23,7 @@ use crate::{
use alloc::boxed::Box;
use alloc::format;
use alloc::sync::Arc;
use anyhow::{Ok, Result};
use anyhow::{bail, Ok, Result};
use async_trait::async_trait;
use embassy_executor::Spawner;
//use battery::BQ34Z100G1;
@@ -32,11 +33,13 @@ use esp_bootloader_esp_idf::partitions::{
AppPartitionSubType, DataPartitionSubType, FlashRegion, PartitionEntry,
};
use esp_hal::clock::CpuClock;
use esp_hal::gpio::{Input, InputConfig, Io, Pull};
use esp_hal::gpio::{Input, InputConfig, Pull};
use esp_println::println;
use measurements::{Current, Voltage};
use crate::hal::LittleFS2StorageAdapter::LittleFs2Filesystem;
use embassy_sync::mutex::Mutex;
use embedded_storage::nor_flash::{NorFlash, ReadNorFlash};
use esp_alloc as _;
use esp_backtrace as _;
use esp_bootloader_esp_idf::ota::Slot;
@@ -44,7 +47,8 @@ use esp_hal::rng::Rng;
use esp_hal::timer::timg::TimerGroup;
use esp_storage::FlashStorage;
use esp_wifi::{init, EspWifiController};
use littlefs2::fs::Filesystem;
use littlefs2::fs::{Allocation, Filesystem as lfs2Filesystem};
use littlefs2::object_safe::DynStorage;
//Only support for 8 right now!
pub const PLANT_COUNT: usize = 8;
@@ -275,6 +279,7 @@ impl PlantHal {
};
let ota_next = mk_static!(PartitionEntry, ota_partition);
let storage_ota = mk_static!(FlashStorage, FlashStorage::new());
let ota_next = mk_static!(
FlashRegion<FlashStorage>,
ota_next.as_embedded_storage(storage_ota)
@@ -285,12 +290,34 @@ impl PlantHal {
DataPartitionSubType::LittleFs,
))?
.unwrap();
let data_partition = mk_static!(PartitionEntry, data_partition);
let mut data = data_partition.as_embedded_storage(storage_ota);
let mut alloc = Filesystem::allocate();
let mut fs = Filesystem::mount(&mut alloc, &mut data).unwrap();
let storage_data = mk_static!(FlashStorage, FlashStorage::new());
let mut data = mk_static!(
FlashRegion<FlashStorage>,
data_partition.as_embedded_storage(storage_data)
);
let lfs2filesystem = mk_static!(LittleFs2Filesystem, LittleFs2Filesystem { storage: data });
let alloc = mk_static!(Allocation<LittleFs2Filesystem>, lfs2Filesystem::allocate());
if lfs2filesystem.is_mountable() {
log::info!("Littlefs2 filesystem is mountable");
} else {
match lfs2filesystem.format() {
Result::Ok(..) => {
log::info!("Littlefs2 filesystem is formatted");
}
Err(err) => {
bail!("Littlefs2 filesystem could not be formatted: {:?}", err);
}
}
}
let fs = Arc::new(Mutex::new(
lfs2Filesystem::mount(alloc, lfs2filesystem).unwrap(),
));
let mut esp = Esp {
fs,
rng,
controller: Arc::new(Mutex::new(controller)),
interfaces: Some(interfaces),