track regulator + config changes refresh interval

Cargo.lock

@@ -2262,7 +2262,7 @@ dependencies = [
 
 [[package]]
 name = "tesla-charge-controller"
-version = "0.1.14"
+version = "0.1.15"
 dependencies = [
  "anyhow",
  "async-channel",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tesla-charge-controller"
-version = "0.1.14"
+version = "0.1.15"
 edition = "2021"
 license = "MITNFA"
 description = "Controls Tesla charge rate based on solar charge data"

src/api_interface.rs

@@ -142,7 +142,10 @@ impl TeslaInterface {
             Ok(new_state) => {
                 self.metrics.tesla_online.set(1.);
                 self.last_refresh = Instant::now();
-                let mut state = self.state.write().expect("State handler panicked!!");
+                let mut state = self
+                    .state
+                    .write()
+                    .expect("Tesla API state handler panicked!!");
 
                 if let Some(new_charge_state) = new_state.charge_state {
                     self.metrics

src/config.rs

@@ -1,12 +1,11 @@
-use std::time::Duration;
-
 use serde::{Deserialize, Serialize};
 
 use crate::types::Coords;
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct Config {
-    pub watch_interval: Duration,
+    pub tesla_watch_interval: u64,
+    pub pl_watch_interval: u64,
     pub coords: Coords,
     pub serial_port: String,
     pub baud_rate: u32,
@@ -15,7 +14,8 @@ pub struct Config {
 impl Default for Config {
     fn default() -> Self {
         Self {
-            watch_interval: Duration::from_secs(60),
+            tesla_watch_interval: 120,
+            pl_watch_interval: 30,
             coords: Coords {
                 latitude: 0.,
                 longitude: 0.,

src/main.rs

@@ -61,16 +61,45 @@ async fn main() {
                 // and to the pli thread
                 let (pli_requests, pli_receiver) = async_channel::unbounded();
 
+                // try to spawn the pli loop
+                let pl_state = match Pli::new(config.serial_port.clone(), config.baud_rate) {
+                    Ok(mut pli) => {
+                        let pl_state = pli.state.clone();
+                        tokio::task::spawn(async move {
+                            let mut interval = tokio::time::interval(
+                                std::time::Duration::from_secs(config.pl_watch_interval),
+                            );
+                            loop {
+                                tokio::select! {
+                                    _ = interval.tick() => pli.refresh(),
+                                    message = pli_receiver.recv() => match message {
+                                        Ok(message) => pli.process_request(message),
+                                        Err(e) => error!("Error on receive channel: {e:#?}")
+                                    }
+                                }
+                            }
+                        });
+                        Some(pl_state)
+                    }
+                    Err(e) => {
+                        log::error!("Error connecting to serial device for PLI: {e:?}");
+                        None
+                    }
+                };
+
                 let server_handle = server::launch_server(server::ServerState {
                     config: config.clone(),
-                    state: interface.state.clone(),
+                    car_state: interface.state.clone(),
+                    pl_state,
                     api_requests,
                     pli_requests,
                 });
 
                 // spawn the api loop
                 tokio::task::spawn(async move {
-                    let mut interval = tokio::time::interval(std::time::Duration::from_secs(120));
+                    let mut interval = tokio::time::interval(std::time::Duration::from_secs(
+                        config.tesla_watch_interval,
+                    ));
                     loop {
                         // await either the next interval OR a message from the other thread
                         tokio::select! {
@@ -83,26 +112,6 @@ async fn main() {
                     }
                 });
 
-                // try to spawn the pli loop
-                match Pli::new(config.serial_port, config.baud_rate) {
-                    Ok(mut pli) => {
-                        tokio::task::spawn(async move {
-                            let mut interval =
-                                tokio::time::interval(std::time::Duration::from_secs(30));
-                            loop {
-                                tokio::select! {
-                                    _ = interval.tick() => pli.refresh(),
-                                    message = pli_receiver.recv() => match message {
-                                        Ok(message) => pli.process_request(message),
-                                        Err(e) => error!("Error on receive channel: {e:#?}")
-                                    }
-                                }
-                            }
-                        });
-                    }
-                    Err(e) => log::error!("Error connecting to serial device for PLI: {e:?}"),
-                }
-
                 server_handle.await;
             }
             Err(e) => error!("{}", e.error_string()),

src/pl_interface.rs

@@ -1,16 +1,116 @@
-use std::{io::Write, time::Duration};
+use std::{
+    io::Write,
+    sync::{Arc, RwLock},
+    time::Duration,
+};
 
 use anyhow::Context;
 use metrics::{describe_gauge, gauge, Gauge};
+use serde::{Deserialize, Serialize};
 use serialport::SerialPort;
 use termcolor::WriteColor;
 
 pub struct Pli {
+    pub state: Arc<RwLock<PlState>>,
     port: Box<dyn SerialPort>,
     voltage_gauge: Gauge,
     duty_cycle: Gauge,
     internal_charge_current: Gauge,
     internal_load_current: Gauge,
+    regulator_gauges: RegulatorGauges,
+}
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+pub struct PlState {
+    pub battery_voltage: f64,
+    pub duty_cycle: f64,
+    pub internal_charge_current: f64,
+    pub internal_load_current: f64,
+    pub regulator_state: RegulatorState,
+}
+
+impl Default for PlState {
+    fn default() -> Self {
+        Self {
+            battery_voltage: Default::default(),
+            duty_cycle: Default::default(),
+            internal_charge_current: Default::default(),
+            internal_load_current: Default::default(),
+            regulator_state: RegulatorState::Absorption,
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+pub enum RegulatorState {
+    Boost,
+    Equalise,
+    Absorption,
+    Float,
+}
+
+impl From<u8> for RegulatorState {
+    fn from(value: u8) -> Self {
+        match value & 0b11 {
+            0b00 => Self::Boost,
+            0b01 => Self::Equalise,
+            0b10 => Self::Absorption,
+            0b11 => Self::Float,
+            _ => unreachable!(),
+        }
+    }
+}
+
+struct RegulatorGauges {
+    boost: Gauge,
+    equalise: Gauge,
+    absorption: Gauge,
+    float: Gauge,
+}
+
+impl RegulatorGauges {
+    fn new() -> Self {
+        describe_gauge!("pl_regulator", "Regulator state");
+        let boost = gauge!("pl_regulator", "state" => "boost");
+        let equalise = gauge!("pl_regulator", "state" => "equalise");
+        let absorption = gauge!("pl_regulator", "state" => "absorption");
+        let float = gauge!("pl_regulator", "state" => "float");
+        Self {
+            boost,
+            equalise,
+            absorption,
+            float,
+        }
+    }
+
+    fn set(&mut self, state: &RegulatorState) {
+        match state {
+            RegulatorState::Boost => {
+                self.boost.set(1.);
+                self.equalise.set(0.);
+                self.absorption.set(0.);
+                self.float.set(0.);
+            }
+            RegulatorState::Equalise => {
+                self.boost.set(0.);
+                self.equalise.set(1.);
+                self.absorption.set(0.);
+                self.float.set(0.);
+            }
+            RegulatorState::Absorption => {
+                self.boost.set(0.);
+                self.equalise.set(0.);
+                self.absorption.set(1.);
+                self.float.set(0.);
+            }
+            RegulatorState::Float => {
+                self.boost.set(0.);
+                self.equalise.set(0.);
+                self.absorption.set(0.);
+                self.float.set(1.);
+            }
+        }
+    }
 }
 
 #[derive(Debug, Clone, Copy)]
@@ -34,28 +134,27 @@ impl Pli {
         let internal_load_current = gauge!("pl_internal_load_current");
 
         Ok(Self {
+            state: Arc::new(RwLock::new(Default::default())),
             port,
             voltage_gauge,
             duty_cycle,
             internal_charge_current,
             internal_load_current,
+            regulator_gauges: RegulatorGauges::new(),
         })
     }
 
     pub fn refresh(&mut self) {
-        if let Ok(batv) = self.read_ram(PlRamAddress::Batv) {
-            self.voltage_gauge.set((batv as f64) * (4. / 10.));
-        }
-        if let Ok(duty_cycle) = self.read_ram(PlRamAddress::Dutycyc) {
-            self.duty_cycle.set((duty_cycle as f64) / 255.);
-        }
-        if let Ok(internal_charge_current) = self.read_ram(PlRamAddress::Cint) {
+        if let Ok(new_state) = self.read_state() {
+            self.voltage_gauge.set(new_state.battery_voltage);
+            self.duty_cycle.set(new_state.duty_cycle);
             self.internal_charge_current
-                .set((internal_charge_current as f64) * (4. / 10.));
-        }
-        if let Ok(internal_load_current) = self.read_ram(PlRamAddress::Lint) {
+                .set(new_state.internal_charge_current);
             self.internal_load_current
-                .set((internal_load_current as f64) * (4. / 10.));
+                .set(new_state.internal_load_current);
+            self.regulator_gauges.set(&new_state.regulator_state);
+
+            *self.state.write().expect("PLI state handler panicked!!") = new_state;
         }
     }
 
@@ -79,6 +178,16 @@ impl Pli {
         }
     }
 
+    fn read_state(&mut self) -> anyhow::Result<PlState> {
+        Ok(PlState {
+            battery_voltage: (self.read_ram(PlRamAddress::Batv)? as f64) * (4. / 10.),
+            duty_cycle: (self.read_ram(PlRamAddress::Dutycyc)? as f64) / 255.,
+            internal_charge_current: (self.read_ram(PlRamAddress::Cint)? as f64) * (4. / 10.),
+            internal_load_current: (self.read_ram(PlRamAddress::Lint)? as f64) * (4. / 10.),
+            regulator_state: self.read_ram(PlRamAddress::Rstate)?.into(),
+        })
+    }
+
     fn send_command(&mut self, req: [u8; 4]) {
         self.port
             .write_all(&req)
@@ -108,6 +217,7 @@ impl Pli {
 enum PlRamAddress {
     Dutycyc,
     Batv,
+    Rstate,
     Cint,
     Lint,
 }
@@ -117,6 +227,7 @@ impl From<PlRamAddress> for u8 {
         match value {
             PlRamAddress::Dutycyc => 39,
             PlRamAddress::Batv => 50,
+            PlRamAddress::Rstate => 101,
             PlRamAddress::Cint => 213,
             PlRamAddress::Lint => 217,
         }

src/server/mod.rs

@@ -11,7 +11,7 @@ use rocket::{
 use crate::{
     api_interface::InterfaceRequest,
     config::Config,
-    pl_interface::PliRequest,
+    pl_interface::{PlState, PliRequest},
     types::{CarState, ChargeState, ClimateState},
 };
 
@@ -21,7 +21,8 @@ mod static_handler;
 
 pub struct ServerState {
     pub config: Config,
-    pub state: Arc<RwLock<CarState>>,
+    pub car_state: Arc<RwLock<CarState>>,
+    pub pl_state: Option<Arc<RwLock<PlState>>>,
     pub api_requests: Sender<InterfaceRequest>,
     pub pli_requests: Sender<PliRequest>,
 }
@@ -49,24 +50,32 @@ fn rocket(state: ServerState) -> rocket::Rocket<rocket::Build> {
         .mount("/", fileserver)
         .mount(
             "/",
-            routes![home, charge_state, flash, climate_state, metrics, read_ram],
+            routes![
+                home,
+                charge_state,
+                flash,
+                climate_state,
+                metrics,
+                read_ram,
+                regulator_state
+            ],
         )
 }
 
 #[get("/home")]
 async fn home(state: &State<ServerState>) -> Option<Json<bool>> {
-    let location_data = &state.state.read().ok()?.location_data?;
+    let location_data = &state.car_state.read().ok()?.location_data?;
     Some(Json(location_data.coords.overlaps(&state.config.coords)))
 }
 
 #[get("/charge-state")]
 async fn charge_state(state: &State<ServerState>) -> Option<Json<ChargeState>> {
-    Some(Json(state.state.read().ok()?.charge_state?))
+    Some(Json(state.car_state.read().ok()?.charge_state?))
 }
 
 #[get("/climate-state")]
 async fn climate_state(state: &State<ServerState>) -> Option<Json<ClimateState>> {
-    Some(Json(state.state.read().ok()?.climate_state?))
+    Some(Json(state.car_state.read().ok()?.climate_state?))
 }
 
 #[post("/flash")]
@@ -87,6 +96,14 @@ async fn read_ram(address: u8, state: &State<ServerState>) -> String {
     format!("reading at ram address {address}")
 }
 
+#[get("/regulator-state")]
+async fn regulator_state(state: &State<ServerState>) -> Option<Json<PlState>> {
+    state
+        .pl_state
+        .as_ref()
+        .and_then(|v| Some(Json(*(v.read().ok()?))))
+}
+
 pub struct Cors;
 
 #[rocket::async_trait]