Make exti an optional feature

* Add embassy-stm32 build with exti
* Add exti to examples

ci.sh

@@ -48,6 +48,12 @@ cargo batch  \
     --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32l476vg,defmt \
     --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv6m-none-eabi --features stm32l072cz,defmt \
     --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7m-none-eabi --features stm32l151cb-a,defmt \
+    --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32f411ce,defmt,exti \
+    --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32f429zi,log,exti \
+    --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32h755zi-cm7,defmt,exti \
+    --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7em-none-eabi --features stm32l476vg,defmt,exti \
+    --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv6m-none-eabi --features stm32l072cz,defmt,exti \
+    --- build --release --manifest-path embassy-stm32/Cargo.toml --target thumbv7m-none-eabi --features stm32l151cb-a,defmt,exti \
     --- build --release --manifest-path docs/modules/ROOT/examples/basic/Cargo.toml --target thumbv7em-none-eabi \
     --- build --release --manifest-path examples/std/Cargo.toml --target x86_64-unknown-linux-gnu --out-dir out/examples/std \
     --- build --release --manifest-path examples/nrf/Cargo.toml --target thumbv7em-none-eabi --out-dir out/examples/nrf \

embassy-stm32/Cargo.toml

@@ -41,6 +41,7 @@ sdmmc-rs = ["embedded-sdmmc"]
 net = ["embassy-net", "vcell"]
 memory-x = ["stm32-metapac/memory-x"]
 subghz = []
+exti = []
 
 # Features starting with `_` are for internal use only. They're not intended
 # to be enabled by other crates, and are not covered by semver guarantees.

embassy-stm32/src/gpio.rs

@@ -480,6 +480,7 @@ pub(crate) mod sealed {
 }
 
 pub trait Pin: sealed::Pin + Sized {
+    #[cfg(feature = "exti")]
     type ExtiChannel: crate::exti::Channel;
 
     /// Number of the pin within the port (0..31)
@@ -527,6 +528,7 @@ impl AnyPin {
 
 unsafe_impl_unborrow!(AnyPin);
 impl Pin for AnyPin {
+    #[cfg(feature = "exti")]
     type ExtiChannel = crate::exti::AnyChannel;
 }
 impl sealed::Pin for AnyPin {
@@ -589,6 +591,7 @@ impl OptionalPin for NoPin {
 crate::pac::pins!(
     ($pin_name:ident, $port_name:ident, $port_num:expr, $pin_num:expr, $exti_ch:ident) => {
         impl Pin for peripherals::$pin_name {
+            #[cfg(feature = "exti")]
             type ExtiChannel = peripherals::$exti_ch;
         }
         impl sealed::Pin for peripherals::$pin_name {

embassy-stm32/src/lib.rs

@@ -33,7 +33,7 @@ pub mod dac;
 pub mod dcmi;
 #[cfg(all(eth, feature = "net"))]
 pub mod eth;
-#[cfg(exti)]
+#[cfg(feature = "exti")]
 pub mod exti;
 #[cfg(i2c)]
 pub mod i2c;
@@ -99,7 +99,7 @@ pub fn init(config: Config) -> Peripherals {
 
         gpio::init();
         dma::init();
-        #[cfg(exti)]
+        #[cfg(feature = "exti")]
         exti::init();
 
         rcc::init(config.rcc);

examples/stm32f3/Cargo.toml

@@ -8,7 +8,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f303vc", "unstable-pac", "memory-x", "time-driver-tim2"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f303vc", "unstable-pac", "memory-x", "time-driver-tim2", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"

examples/stm32f4/Cargo.toml

@@ -9,7 +9,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-tim2"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-tim2", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"

examples/stm32f7/Cargo.toml

@@ -8,7 +8,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "net", "stm32f767zi", "unstable-pac", "time-driver-tim2"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "net", "stm32f767zi", "unstable-pac", "time-driver-tim2", "exti"]  }
 embassy-net = { path = "../../embassy-net", default-features = false, features = ["defmt", "tcp", "medium-ethernet", "pool-16"] }
 
 defmt = "0.3"
@@ -27,4 +27,4 @@ critical-section = "0.2.3"
 [dependencies.smoltcp]
 version = "0.8.0"
 default-features = false
-features = ["defmt"]
+features = ["defmt"]

examples/stm32g0/Cargo.toml

@@ -8,7 +8,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-tim2", "stm32g071rb", "memory-x", "unstable-pac"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-tim2", "stm32g071rb", "memory-x", "unstable-pac", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"

examples/stm32g4/Cargo.toml

@@ -8,7 +8,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-tim3", "stm32g491re", "memory-x", "unstable-pac"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "time-driver-tim3", "stm32g491re", "memory-x", "unstable-pac", "exti"]  }
 embassy-hal-common = {version = "0.1.0", path = "../../embassy-hal-common" }
 
 defmt = "0.3"

examples/stm32h7/Cargo.toml

@@ -10,7 +10,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32h743zi", "net", "time-driver-tim2"] }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32h743zi", "net", "time-driver-tim2", "exti"] }
 embassy-net = { path = "../../embassy-net", default-features = false, features = ["defmt", "tcp", "medium-ethernet", "pool-16"] }
 
 defmt = "0.3"
@@ -67,4 +67,4 @@ debug-assertions = false # <-
 incremental = false
 lto = 'fat'
 opt-level = 3 # <-
-overflow-checks = false # <-
+overflow-checks = false # <-

examples/stm32l0/Cargo.toml

@@ -8,7 +8,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32l072cz", "time-driver-tim3"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32l072cz", "time-driver-tim3", "exti"]  }
 
 embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["sx127x", "time", "defmt"] }
 

examples/stm32l4/Cargo.toml

@@ -10,7 +10,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt" ] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "unstable-pac", "stm32l4s5vi", "time-driver-tim2"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "unstable-pac", "stm32l4s5vi", "time-driver-tim2", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"

examples/stm32wb55/Cargo.toml

@@ -8,7 +8,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wb55cc", "time-driver-tim2"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wb55cc", "time-driver-tim2", "exti"]  }
 
 defmt = "0.3"
 defmt-rtt = "0.3"

examples/stm32wl55/Cargo.toml

@@ -8,7 +8,7 @@ resolver = "2"
 [dependencies]
 embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wl55jc-cm4", "time-driver-tim2", "memory-x", "subghz", "unstable-pac"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wl55jc-cm4", "time-driver-tim2", "memory-x", "subghz", "unstable-pac", "exti"]  }
 embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["stm32wl", "time"] }
 
 lorawan-device = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "0de1a2a31933f7c97887b5718c1755fa5ab93a42", default-features = false, features = ["async"] }