added can device handler implementation

src/can.rs

@@ -151,7 +151,7 @@ impl CanTxHandler {
         if self.package_map.contains_key(&package_id) {
             let value = self.package_map.get(&package_id).unwrap();
             if value.get_sender() == DeviceId::OBC {
-                if value.get_thread() == self.thread_id {
+                //if value.get_thread() == self.thread_id {
                     if data.len() <= 8 {
                         let frame_id = package_id_to_can_id(&package_id);
                         let frame = CanFrame::new(frame_id, data);
@@ -166,12 +166,14 @@ impl CanTxHandler {
                             data.len()
                         );
                     }
-                } else {
+                /*} else {
                     warn!(
                         "Message dismissed, mismatched thread id: {:?}",
                         value.get_thread()
                     );
                 }
+
+                 */
             } else {
                 warn!(
                     "Message dismissed, wrong sender id: {:?}",

src/device_handler.rs

@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 use std::hash::Hash;
-use std::sync::mpsc::{Receiver, Sender};
-use log::info;
+use std::sync::mpsc::{Receiver, RecvError, Sender};
+use log::{info, warn};
 use crate::can_ids::{DeviceId, PackageId, PackageModel, ThreadId};
 use socketcan::{errors, frame, socket, CanFrame, Socket};
 
@@ -19,54 +19,145 @@ pub enum DeviceState {
     Unknown,
 }
 
-
-
-pub struct DeviceHandler {
+pub struct CanDeviceHandler {
     device_state_map: HashMap<DeviceId, DeviceState>,
     can_tx_handler: CanTxHandler,
     can_rx_receiver: Receiver<PackageModel>,
 }
 
-impl DeviceHandler {
-    pub fn new(can_tx_handler: CanTxHandler, can_rx_receiver: Receiver<PackageModel>) -> DeviceHandler {
+impl CanDeviceHandler {
+    pub fn new(can_tx_handler: CanTxHandler, can_rx_receiver: Receiver<PackageModel>) -> CanDeviceHandler {
         let mut device_state_map:HashMap<DeviceId, DeviceState> = HashMap::new();
 
         for id in DeviceId::iter() {
             device_state_map.insert(id, DeviceState::Unknown);
         }
-        DeviceHandler{ device_state_map, can_tx_handler, can_rx_receiver }
-    }
-
-    pub fn power_up_seq(&mut self) {
-        for id in DeviceId::iter() {
-            let power_on_success = self.power_on(id);
-            match power_on_success{
-                Ok(_) => {info!("{:?} powered up successfully.", id)}
-                Err(_) => {info!("{:?} failed to power up.", id)}
-            }
-        }
+        CanDeviceHandler { device_state_map, can_tx_handler, can_rx_receiver }
     }
 
     pub fn power_on(&mut self, id: DeviceId) -> Result<(),()> {
         if !self.device_state_map.contains_key(&id) {
             return Err(());
         }
+        info!("Powering on device {:?}", id);
 
         let msg_data: [u8; 1] = [id as u8];
         self.can_tx_handler.tx_socket(PackageId::DevicePowerOnRequest, &msg_data);
 
-        match self.get_power_state(id) {
-            None => {return Err(());}
-            Some(power_state) => {
-                if *power_state != DeviceState::On {
+        let request_confirmation = self.can_rx_receiver.recv();
+        match request_confirmation {
+            Ok(confirmation) => {
+                if confirmation.package_id() != PackageId::DevicePowerOnRequestConfirmation {
+                    warn!("Wrong package ID.");
                     return Err(());
                 }
+                if confirmation.data()[0] != id as u8 {
+                    warn!("Wrong device ID.");
+                    return Err(());
+                }
+                if confirmation.data()[1] != 1 {
+                    warn!("Request unsuccessful.");
+                    return Err(());
+                }
+                info!("Power on request confirmation received.");
+            }
+            Err(_) => {
+                warn!("Error receiving package.");
+                return Err(());
+            }
+        }
+
+        let request_success = self.can_rx_receiver.recv();
+        match request_success {
+            Ok(success) => {
+                if success.package_id() != PackageId::DevicePowerOnConfirmation {
+                    warn!("Wrong package ID.");
+                    return Err(());
+                }
+                if success.data()[0] != id as u8 {
+                    warn!("Wrong device ID.");
+                    return Err(());
+                }
+                if success.data()[1] != 1 {
+                    warn!("Power on unsuccessful.");
+                    return Err(());
+                }
+                info!("Power on confirmation received.");
+            }
+            Err(_) => {
+                warn!("Error receiving package.");
+                return Err(());
             }
         }
 
         Ok(())
     }
 
+    pub fn power_off(&mut self, id: DeviceId) -> Result<(),()> {
+        if !self.device_state_map.contains_key(&id) {
+            return Err(());
+        }
+        info!("Powering on device {:?}", id);
+
+        let msg_data: [u8; 1] = [id as u8];
+        self.can_tx_handler.tx_socket(PackageId::DevicePowerOffRequest, &msg_data);
+
+        let request_confirmation = self.can_rx_receiver.recv();
+        match request_confirmation {
+            Ok(confirmation) => {
+                if confirmation.package_id() != PackageId::DevicePowerOffRequestConfirmation {
+                    warn!("Wrong package ID.");
+                    return Err(());
+                }
+                if confirmation.data()[0] != id as u8 {
+                    warn!("Wrong device ID.");
+                    return Err(());
+                }
+                if confirmation.data()[1] != 1 {
+                    warn!("Request unsuccessful.");
+                    return Err(());
+                }
+                info!("Power off request confirmation received.");
+            }
+            Err(_) => {
+                warn!("Error receiving package.");
+                return Err(());
+            }
+        }
+
+        let request_success = self.can_rx_receiver.recv();
+        match request_success {
+            Ok(success) => {
+                if success.package_id() != PackageId::DevicePowerOffConfirmation {
+                    warn!("Wrong package ID.");
+                    return Err(());
+                }
+                if success.data()[0] != id as u8 {
+                    warn!("Wrong device ID.");
+                    return Err(());
+                }
+                if success.data()[1] != 1 {
+                    warn!("Power off unsuccessful.");
+                    return Err(());
+                }
+                info!("Power off confirmation received.");
+            }
+            Err(_) => {
+                warn!("Error receiving package.");
+                return Err(());
+            }
+        }
+
+        Ok(())
+    }
+
+    pub fn get_power_states(&mut self) -> HashMap<DeviceId, DeviceState> {
+        for id in DeviceId::iter() {
+            self.update_power_state(id).expect("Error updating power state.");
+        }
+        self.device_state_map.clone()
+    }
+
     pub fn get_power_state(&mut self, id: DeviceId) -> Option<&DeviceState> {
         self.update_power_state(id).expect("Error updating power state.");
         self.device_state_map.get(&id)
@@ -100,3 +191,17 @@ impl DeviceHandler {
     }
 }
 
+pub fn power_up_sequence(mut device_handler: CanDeviceHandler) -> HashMap<DeviceId, DeviceState> {
+    for id in DeviceId::iter() {
+        device_handler.power_on(id).expect("Error powering on device.");
+    }
+    device_handler.get_power_states()
+}
+
+pub fn power_down_sequence(mut device_handler: CanDeviceHandler) -> HashMap<DeviceId, DeviceState> {
+    for id in DeviceId::iter() {
+        device_handler.power_off(id).expect("Error powering on device.");
+    }
+    device_handler.get_power_states()
+}
+