SNS - Shared IO (#49)

Co-authored-by: jpfbastos <jpfbastos05@gmail.com>

boards/stm32f767zi/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 embassy-stm32 = { version = "0.1.0", features = ["defmt", "stm32f767zi", "memory-x", "unstable-pac", "time-driver-any", "exti"] , git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
-embassy-sync = { version = "0.6.0", features = ["defmt"], git = "https://github.com/embassy-rs/embassy"}
+embassy-sync = { version = "0.6.0", features = ["defmt"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
 embassy-executor = { version = "0.6.0", features = ["task-arena-size-32768", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
 embassy-time = { version = "0.3.1", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
 embassy-net = { version = "0.4.0", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}

boards/stm32f767zi/src/io.rs

@@ -1,6 +1,8 @@
+use core::cell::RefCell;
 use embassy_stm32::adc::{Adc, AnyAdcChannel, Instance};
 use embassy_stm32::gpio::Input;
 use embassy_stm32::{i2c::I2c, mode::Blocking};
+use embassy_sync::blocking_mutex::{raw::CriticalSectionRawMutex, Mutex};
 
 use hyped_adc::HypedAdc;
 use hyped_adc_derive::HypedAdc;
@@ -22,5 +24,5 @@ pub struct Stm32f767ziGpioInput {
 
 #[derive(HypedI2c)]
 pub struct Stm32f767ziI2c<'d> {
-    i2c: I2c<'d, Blocking>,
+    i2c: Mutex<CriticalSectionRawMutex, RefCell<I2c<'d, Blocking>>>,
 }

boards/stm32f767zi/src/tasks/temperature.rs

@@ -1,14 +1,22 @@
 use crate::io::Stm32f767ziI2c;
+use core::cell::RefCell;
 use defmt_rtt as _;
 use embassy_stm32::i2c::I2c;
 use embassy_stm32::time::Hertz;
+use embassy_sync::blocking_mutex::Mutex;
 use hyped_sensors::temperature::{Status, Temperature, TemperatureAddresses};
 
 /// Test task that just reads the temperature from the sensor and prints it to the console
 #[embassy_executor::task]
 pub async fn read_temp() -> ! {
     let p = embassy_stm32::init(Default::default());
-    let i2c = I2c::new_blocking(p.I2C1, p.PB8, p.PB9, Hertz(100_000), Default::default());
+    let i2c = Mutex::new(RefCell::new(I2c::new_blocking(
+        p.I2C1,
+        p.PB8,
+        p.PB9,
+        Hertz(100_000),
+        Default::default(),
+    )));
     let mut hyped_i2c = Stm32f767ziI2c::new(i2c);
 
     let mut temperature_sensor = Temperature::new(&mut hyped_i2c, TemperatureAddresses::Address3f)

boards/stm32l476rg/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 embassy-stm32 = { version = "0.1.0", features = ["defmt", "stm32l476rg", "memory-x", "unstable-pac", "time-driver-any", "exti"] , git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
-embassy-sync = { version = "0.6.0", features = ["defmt"], git = "https://github.com/embassy-rs/embassy"}
+embassy-sync = { version = "0.6.0", features = ["defmt"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
 embassy-executor = { version = "0.6.0", features = ["task-arena-size-32768", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
 embassy-time = { version = "0.3.1", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}
 embassy-net = { version = "0.4.0", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}

boards/stm32l476rg/src/io.rs

@@ -1,6 +1,9 @@
+use core::cell::RefCell;
+
 use embassy_stm32::adc::{Adc, AnyAdcChannel, Instance};
 use embassy_stm32::gpio::Input;
 use embassy_stm32::{i2c::I2c, mode::Blocking};
+use embassy_sync::blocking_mutex::{raw::CriticalSectionRawMutex, Mutex};
 
 use hyped_adc::HypedAdc;
 use hyped_adc_derive::HypedAdc;
@@ -22,5 +25,5 @@ pub struct Stm32l476rgGpioInput {
 
 #[derive(HypedI2c)]
 pub struct Stm32l476rgI2c<'d> {
-    i2c: I2c<'d, Blocking>,
+    i2c: Mutex<CriticalSectionRawMutex, RefCell<I2c<'d, Blocking>>>,
 }

boards/stm32l476rg/src/tasks/temperature.rs

@@ -1,14 +1,22 @@
 use crate::io::Stm32l476rgI2c;
+use core::cell::RefCell;
 use defmt_rtt as _;
 use embassy_stm32::i2c::I2c;
 use embassy_stm32::time::Hertz;
+use embassy_sync::blocking_mutex::Mutex;
 use hyped_sensors::temperature::{Status, Temperature, TemperatureAddresses};
 
 /// Test task that just reads the temperature from the sensor and prints it to the console
 #[embassy_executor::task]
 pub async fn read_temp() -> ! {
     let p = embassy_stm32::init(Default::default());
-    let i2c = I2c::new_blocking(p.I2C1, p.PB8, p.PB9, Hertz(100_000), Default::default());
+    let i2c = Mutex::new(RefCell::new(I2c::new_blocking(
+        p.I2C1,
+        p.PB8,
+        p.PB9,
+        Hertz(100_000),
+        Default::default(),
+    )));
     let mut hyped_i2c = Stm32l476rgI2c::new(i2c);
 
     let mut temperature_sensor = Temperature::new(&mut hyped_i2c, TemperatureAddresses::Address3f)

lib/io/hyped_i2c/Cargo.toml

@@ -4,4 +4,5 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-heapless = "0.8.0"
+heapless = "0.8.0"
+embassy-sync = { version = "0.6.0", features = ["defmt"], git = "https://github.com/embassy-rs/embassy", rev = "1c466b81e6af6b34b1f706318cc0870a459550b7"}