cleanups

Software/MainBoard/rust/src/hal/rtc.rs

@@ -0,0 +1,133 @@
+use crate::hal::Box;
+use crate::fat_error::FatResult;
+use async_trait::async_trait;
+use bincode::config::Configuration;
+use bincode::{config, Decode, Encode};
+use chrono::{DateTime, Utc};
+use ds323x::ic::DS3231;
+use ds323x::interface::I2cInterface;
+use ds323x::{DateTimeAccess, Ds323x};
+use eeprom24x::addr_size::TwoBytes;
+use eeprom24x::page_size::B32;
+use eeprom24x::unique_serial::No;
+use embassy_embedded_hal::shared_bus::blocking::i2c::I2cDevice;
+use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
+use embedded_storage::{ReadStorage, Storage};
+use esp_hal::delay::Delay;
+use esp_hal::i2c::master::I2c;
+use esp_hal::Blocking;
+use serde::{Deserialize, Serialize};
+
+pub const X25: crc::Crc<u16> = crc::Crc::<u16>::new(&crc::CRC_16_IBM_SDLC);
+const CONFIG: Configuration = config::standard();
+//
+#[async_trait(?Send)]
+pub trait RTCModuleInteraction {
+    async fn get_backup_info(&mut self) -> FatResult<BackupHeader>;
+    async fn get_backup_config(&mut self, chunk: usize) -> FatResult<([u8; 32], usize, u16)>;
+    async fn backup_config(&mut self, offset: usize, bytes: &[u8]) -> FatResult<()>;
+    async fn backup_config_finalize(&mut self, crc: u16, length: usize) -> FatResult<()>;
+    async fn get_rtc_time(&mut self) -> FatResult<DateTime<Utc>>;
+    async fn set_rtc_time(&mut self, time: &DateTime<Utc>) -> FatResult<()>;
+}
+//
+const BACKUP_HEADER_MAX_SIZE: usize = 64;
+
+#[derive(Serialize, Deserialize, PartialEq, Debug, Default, Encode, Decode)]
+pub struct BackupHeader {
+    pub timestamp: i64,
+    crc16: u16,
+    pub size: u16,
+}
+//
+pub struct DS3231Module {
+    pub(crate) rtc: Ds323x<
+        I2cInterface<I2cDevice<'static, CriticalSectionRawMutex, I2c<'static, Blocking>>>,
+        DS3231,
+    >,
+
+    pub(crate) storage: eeprom24x::Storage<
+        I2cDevice<'static, CriticalSectionRawMutex, I2c<'static, Blocking>>,
+        B32,
+        TwoBytes,
+        No,
+        Delay,
+    >,
+}
+
+#[async_trait(?Send)]
+impl RTCModuleInteraction for DS3231Module {
+    async fn get_backup_info(&mut self) -> FatResult<BackupHeader> {
+        let mut header_page_buffer = [0_u8; BACKUP_HEADER_MAX_SIZE];
+
+        self.storage.read(0, &mut header_page_buffer)?;
+
+        let (header, len): (BackupHeader, usize) =
+            bincode::decode_from_slice(&header_page_buffer[..], CONFIG)?;
+
+        log::info!("Raw header is {:?} with size {}", header_page_buffer, len);
+        Ok(header)
+    }
+
+    async fn get_backup_config(&mut self, chunk: usize) -> FatResult<([u8; 32], usize, u16)> {
+        let mut header_page_buffer = [0_u8; BACKUP_HEADER_MAX_SIZE];
+
+        self.storage.read(0, &mut header_page_buffer)?;
+        let (header, _header_size): (BackupHeader, usize) =
+            bincode::decode_from_slice(&header_page_buffer[..], CONFIG)?;
+
+        let mut buf = [0_u8; 32];
+        let offset = chunk * buf.len() + BACKUP_HEADER_MAX_SIZE;
+
+        let end: usize = header.size as usize + BACKUP_HEADER_MAX_SIZE;
+        let current_end = offset + buf.len();
+        let chunk_size = if current_end > end {
+            end - offset
+        } else {
+            buf.len()
+        };
+        if chunk_size == 0 {
+            Ok((buf, 0, header.crc16))
+        } else {
+            self.storage.read(offset as u32, &mut buf)?;
+            //&buf[..chunk_size];
+            Ok((buf, chunk_size, header.crc16))
+        }
+    }
+    async fn backup_config(&mut self, offset: usize, bytes: &[u8]) -> FatResult<()> {
+        //skip header and write after
+        self.storage
+            .write((BACKUP_HEADER_MAX_SIZE + offset) as u32, &bytes)?;
+
+        Ok(())
+    }
+
+    async fn backup_config_finalize(&mut self, crc: u16, length: usize) -> FatResult<()> {
+        let mut header_page_buffer = [0_u8; BACKUP_HEADER_MAX_SIZE];
+
+        let time = self.get_rtc_time().await?.timestamp_millis();
+        let header = BackupHeader {
+            crc16: crc,
+            timestamp: time,
+            size: length as u16,
+        };
+        let config = config::standard();
+        let encoded = bincode::encode_into_slice(&header, &mut header_page_buffer, config)?;
+        log::info!(
+            "Raw header is {:?} with size {}",
+            header_page_buffer,
+            encoded
+        );
+        self.storage.write(0, &header_page_buffer)?;
+        Ok(())
+    }
+
+    async fn get_rtc_time(&mut self) -> FatResult<DateTime<Utc>> {
+        Ok(self.rtc.datetime()?.and_utc())
+    }
+
+    async fn set_rtc_time(&mut self, time: &DateTime<Utc>) -> FatResult<()> {
+        let naive_time = time.naive_utc();
+        Ok(self.rtc.set_datetime(&naive_time)?)
+    }
+}