Merge pull request #2871 from bugadani/synopsys

Extract Synopsys USB OTG driver from embassy-stm32

.github/ci/doc.sh

@@ -38,6 +38,7 @@ docserver-builder -i ./embassy-usb -o webroot/crates/embassy-usb/git.zup
 docserver-builder -i ./embassy-usb-dfu -o webroot/crates/embassy-usb-dfu/git.zup
 docserver-builder -i ./embassy-usb-driver -o webroot/crates/embassy-usb-driver/git.zup
 docserver-builder -i ./embassy-usb-logger -o webroot/crates/embassy-usb-logger/git.zup
+docserver-builder -i ./embassy-usb-synopsys-otg -o webroot/crates/embassy-usb-synopsys-otg/git.zup
 
 docserver-builder -i ./embassy-net -o webroot/crates/embassy-net/git.zup
 docserver-builder -i ./embassy-net-driver -o webroot/crates/embassy-net-driver/git.zup

embassy-stm32/Cargo.toml

@@ -50,6 +50,7 @@ embassy-hal-internal = {version = "0.1.0", path = "../embassy-hal-internal", fea
 embassy-embedded-hal = {version = "0.1.0", path = "../embassy-embedded-hal" }
 embassy-net-driver = { version = "0.2.0", path = "../embassy-net-driver" }
 embassy-usb-driver = {version = "0.1.0", path = "../embassy-usb-driver" }
+embassy-usb-synopsys-otg = {version = "0.1.0", path = "../embassy-usb-synopsys-otg" }
 embassy-executor = { version = "0.5.0", path = "../embassy-executor", optional = true }
 
 embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["unproven"] }

embassy-usb-driver/Cargo.toml

@@ -12,7 +12,7 @@ documentation = "https://docs.embassy.dev/embassy-usb-driver"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [package.metadata.embassy_docs]
-src_base = "https://github.com/embassy-rs/embassy/blob/embassy-usb-driver-v$VERSION/embassy-usb/src/"
+src_base = "https://github.com/embassy-rs/embassy/blob/embassy-usb-driver-v$VERSION/embassy-usb-driver/src/"
 src_base_git = "https://github.com/embassy-rs/embassy/blob/$COMMIT/embassy-usb-driver/src/"
 features = ["defmt"]
 target = "thumbv7em-none-eabi"

embassy-usb-synopsys-otg/Cargo.toml

@@ -0,0 +1,27 @@
+[package]
+name = "embassy-usb-synopsys-otg"
+version = "0.1.0"
+edition = "2021"
+description = "`embassy-usb-driver` implementation for Synopsys OTG USB controllers"
+keywords = ["embedded", "async", "usb", "hal", "embedded-hal"]
+categories = ["embedded", "hardware-support", "no-std", "asynchronous"]
+repository = "https://github.com/embassy-rs/embassy"
+documentation = "https://docs.embassy.dev/embassy-usb-synopsys-otg"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[package.metadata.embassy_docs]
+src_base = "https://github.com/embassy-rs/embassy/blob/embassy-usb-synopsys-otg-v$VERSION/embassy-usb-synopsys-otg/src/"
+src_base_git = "https://github.com/embassy-rs/embassy/blob/$COMMIT/embassy-usb-synopsys-otg/src/"
+features = ["defmt"]
+target = "thumbv7em-none-eabi"
+
+[dependencies]
+critical-section = "1.1"
+futures = { version = "0.3.17", default-features = false }
+
+embassy-sync = { version = "0.5.0", path = "../embassy-sync" }
+embassy-usb-driver = {version = "0.1.0", path = "../embassy-usb-driver" }
+
+defmt = { version = "0.3", optional = true }
+log = { version = "0.4.14", optional = true }

embassy-usb-synopsys-otg/README.md

@@ -0,0 +1,5 @@
+# Embassy USB driver for the Synopsys USB OTG core
+
+This crate implements `embassy-usb-driver` for Synopsys USB OTG devices. If you wish to
+integrate this crate into your device's HAL, you will need to add device-specific initialization.
+For an example, check out the `embassy-stm32` crate.

embassy-usb-synopsys-otg/src/fmt.rs

@@ -0,0 +1,257 @@
+#![macro_use]
+#![allow(unused)]
+
+use core::fmt::{Debug, Display, LowerHex};
+
+#[cfg(all(feature = "defmt", feature = "log"))]
+compile_error!("You may not enable both `defmt` and `log` features.");
+
+macro_rules! assert {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::assert!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::assert!($($x)*);
+        }
+    };
+}
+
+macro_rules! assert_eq {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::assert_eq!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::assert_eq!($($x)*);
+        }
+    };
+}
+
+macro_rules! assert_ne {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::assert_ne!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::assert_ne!($($x)*);
+        }
+    };
+}
+
+macro_rules! debug_assert {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::debug_assert!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug_assert!($($x)*);
+        }
+    };
+}
+
+macro_rules! debug_assert_eq {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::debug_assert_eq!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug_assert_eq!($($x)*);
+        }
+    };
+}
+
+macro_rules! debug_assert_ne {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::debug_assert_ne!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug_assert_ne!($($x)*);
+        }
+    };
+}
+
+macro_rules! todo {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::todo!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::todo!($($x)*);
+        }
+    };
+}
+
+#[cfg(not(feature = "defmt"))]
+macro_rules! unreachable {
+    ($($x:tt)*) => {
+        ::core::unreachable!($($x)*)
+    };
+}
+
+#[cfg(feature = "defmt")]
+macro_rules! unreachable {
+    ($($x:tt)*) => {
+        ::defmt::unreachable!($($x)*)
+    };
+}
+
+macro_rules! panic {
+    ($($x:tt)*) => {
+        {
+            #[cfg(not(feature = "defmt"))]
+            ::core::panic!($($x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::panic!($($x)*);
+        }
+    };
+}
+
+macro_rules! trace {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::trace!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::trace!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! debug {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::debug!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::debug!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! info {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::info!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::info!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! warn {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::warn!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::warn!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+macro_rules! error {
+    ($s:literal $(, $x:expr)* $(,)?) => {
+        {
+            #[cfg(feature = "log")]
+            ::log::error!($s $(, $x)*);
+            #[cfg(feature = "defmt")]
+            ::defmt::error!($s $(, $x)*);
+            #[cfg(not(any(feature = "log", feature="defmt")))]
+            let _ = ($( & $x ),*);
+        }
+    };
+}
+
+#[cfg(feature = "defmt")]
+macro_rules! unwrap {
+    ($($x:tt)*) => {
+        ::defmt::unwrap!($($x)*)
+    };
+}
+
+#[cfg(not(feature = "defmt"))]
+macro_rules! unwrap {
+    ($arg:expr) => {
+        match $crate::fmt::Try::into_result($arg) {
+            ::core::result::Result::Ok(t) => t,
+            ::core::result::Result::Err(e) => {
+                ::core::panic!("unwrap of `{}` failed: {:?}", ::core::stringify!($arg), e);
+            }
+        }
+    };
+    ($arg:expr, $($msg:expr),+ $(,)? ) => {
+        match $crate::fmt::Try::into_result($arg) {
+            ::core::result::Result::Ok(t) => t,
+            ::core::result::Result::Err(e) => {
+                ::core::panic!("unwrap of `{}` failed: {}: {:?}", ::core::stringify!($arg), ::core::format_args!($($msg,)*), e);
+            }
+        }
+    }
+}
+
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub struct NoneError;
+
+pub trait Try {
+    type Ok;
+    type Error;
+    fn into_result(self) -> Result<Self::Ok, Self::Error>;
+}
+
+impl<T> Try for Option<T> {
+    type Ok = T;
+    type Error = NoneError;
+
+    #[inline]
+    fn into_result(self) -> Result<T, NoneError> {
+        self.ok_or(NoneError)
+    }
+}
+
+impl<T, E> Try for Result<T, E> {
+    type Ok = T;
+    type Error = E;
+
+    #[inline]
+    fn into_result(self) -> Self {
+        self
+    }
+}
+
+pub(crate) struct Bytes<'a>(pub &'a [u8]);
+
+impl<'a> Debug for Bytes<'a> {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        write!(f, "{:#02x?}", self.0)
+    }
+}
+
+impl<'a> Display for Bytes<'a> {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        write!(f, "{:#02x?}", self.0)
+    }
+}
+
+impl<'a> LowerHex for Bytes<'a> {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        write!(f, "{:#02x?}", self.0)
+    }
+}
+
+#[cfg(feature = "defmt")]
+impl<'a> defmt::Format for Bytes<'a> {
+    fn format(&self, fmt: defmt::Formatter) {
+        defmt::write!(fmt, "{:02x}", self.0)
+    }
+}