Update dependencies and replace Cell and RefCell with SyncCell and Mutex, respectively (#372)

- NoopRawMutex changed to CriticalSectionRawMutex
- embedded_service::Buffer fixed to use `AtomicPtr<T>` rather than `*mut
[T]`

Author: tullom

Cargo.lock

@@ -1,13 +1,14 @@
 use crate::device::Device;
 use crate::device::{self, DeviceId};
 use embassy_sync::channel::Channel;
+use embassy_sync::channel::TrySendError;
 use embassy_sync::mutex::Mutex;
-use embassy_sync::{blocking_mutex::raw::NoopRawMutex, channel::TrySendError};
 use embassy_time::{with_timeout, Duration};
+use embedded_services::GlobalRawMutex;
 use embedded_services::{debug, error, info, intrusive_list, trace, warn, IntrusiveList};
 
-use core::cell::Cell;
 use core::ops::DerefMut;
+use core::sync::atomic::AtomicUsize;
 
 /// Battery service states.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -104,10 +105,10 @@ pub struct BatteryEvent {
 /// Battery service context, hardware agnostic state.
 pub struct Context {
     fuel_gauges: IntrusiveList,
-    state: Mutex<NoopRawMutex, State>,
-    battery_event: Channel<NoopRawMutex, BatteryEvent, 1>,
-    battery_response: Channel<NoopRawMutex, BatteryResponse, 1>,
-    no_op_retry_count: Cell<usize>,
+    state: Mutex<GlobalRawMutex, State>,
+    battery_event: Channel<GlobalRawMutex, BatteryEvent, 1>,
+    battery_response: Channel<GlobalRawMutex, BatteryResponse, 1>,
+    no_op_retry_count: AtomicUsize,
     config: Config,
 }
 
@@ -133,7 +134,7 @@ impl Context {
             state: Mutex::new(State::NotPresent),
             battery_event: Channel::new(),
             battery_response: Channel::new(),
-            no_op_retry_count: Cell::new(0),
+            no_op_retry_count: AtomicUsize::new(0),
             config: Default::default(),
         }
     }
@@ -144,7 +145,7 @@ impl Context {
             state: Mutex::new(State::NotPresent),
             battery_event: Channel::new(),
             battery_response: Channel::new(),
-            no_op_retry_count: Cell::new(0),
+            no_op_retry_count: AtomicUsize::new(0),
             config,
         }
     }
@@ -161,12 +162,13 @@ impl Context {
 
     /// Get global state machine NotOperational retry count.
     fn get_state_machine_retry_count(&self) -> usize {
-        self.no_op_retry_count.get()
+        self.no_op_retry_count.load(core::sync::atomic::Ordering::Relaxed)
     }
 
     /// Set global state machine NotOperational retry count.
     fn set_state_machine_retry_count(&self, retry_count: usize) {
-        self.no_op_retry_count.set(retry_count)
+        self.no_op_retry_count
+            .store(retry_count, core::sync::atomic::Ordering::Relaxed)
     }
 
     /// Main processing function.
@@ -185,7 +187,7 @@ impl Context {
             },
             Err(_) => {
                 error!("Battery state machine timeout!");
-                // Should be infalliable
+                // Should be infallible
                 self.do_state_machine(BatteryEvent {
                     event: BatteryEventInner::Timeout,
                     device_id: event.device_id,

battery-service/src/context.rs

@@ -1,9 +1,8 @@
 use core::cell::Cell;
 
-use embassy_sync::blocking_mutex::raw::NoopRawMutex;
 use embassy_sync::channel::Channel;
 use embassy_time::Duration;
-use embedded_services::{Node, NodeContainer};
+use embedded_services::{GlobalRawMutex, Node, NodeContainer};
 
 #[derive(Debug, Clone, Copy)]
 #[cfg_attr(feature = "defmt", derive(defmt::Format))]
@@ -115,8 +114,8 @@ pub struct DeviceId(pub u8);
 pub struct Device {
     node: embedded_services::Node,
     id: DeviceId,
-    command: Channel<NoopRawMutex, Command, 1>,
-    response: Channel<NoopRawMutex, Response, 1>,
+    command: Channel<GlobalRawMutex, Command, 1>,
+    response: Channel<GlobalRawMutex, Response, 1>,
     dynamic_battery_cache: Cell<DynamicBatteryMsgs>,
     static_battery_cache: Cell<StaticBatteryMsgs>,
     timeout: Cell<Duration>,