Merge pull request #2071 from embassy-rs/rcc-no-spaghetti

stm32/rng: add test.

2 files changed, 74 insertions, 18 deletions

diff --git a/tests/stm32/Cargo.toml b/tests/stm32/Cargo.toml
index fd18cd77c..9adff596d 100644
--- a/tests/stm32/Cargo.toml
+++ b/tests/stm32/Cargo.toml
@@ -6,26 +6,27 @@ license = "MIT OR Apache-2.0"
 autobins = false
 
 [features]
-stm32f103c8 = ["embassy-stm32/stm32f103c8", "not-gpdma"]     # Blue Pill
-stm32f429zi = ["embassy-stm32/stm32f429zi", "chrono", "eth", "stop", "can", "not-gpdma", "dac-adc-pin"]     # Nucleo "sdmmc"
-stm32g071rb = ["embassy-stm32/stm32g071rb", "not-gpdma", "dac-adc-pin"]     # Nucleo
-stm32c031c6 = ["embassy-stm32/stm32c031c6", "not-gpdma"]     # Nucleo
-stm32g491re = ["embassy-stm32/stm32g491re", "chrono", "not-gpdma"]     # Nucleo
-stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "chrono", "not-gpdma", "eth", "dac-adc-pin"] # Nucleo
-stm32wb55rg = ["embassy-stm32/stm32wb55rg", "chrono", "not-gpdma", "ble", "mac" ]     # Nucleo
-stm32h563zi = ["embassy-stm32/stm32h563zi", "chrono", "eth"]     # Nucleo
-stm32u585ai = ["embassy-stm32/stm32u585ai", "chrono"]     # IoT board
-stm32l073rz = ["embassy-stm32/stm32l073rz", "not-gpdma"]     # Nucleo
-stm32l152re = ["embassy-stm32/stm32l152re", "chrono", "not-gpdma"]     # Nucleo
-stm32l4a6zg = ["embassy-stm32/stm32l4a6zg", "chrono", "not-gpdma"]     # Nucleo
-stm32l4r5zi = ["embassy-stm32/stm32l4r5zi", "chrono", "not-gpdma"]     # Nucleo
-stm32l552ze = ["embassy-stm32/stm32l552ze", "not-gpdma"]     # Nucleo
-stm32f767zi = ["embassy-stm32/stm32f767zi", "chrono", "not-gpdma", "eth"]     # Nucleo
-stm32f207zg = ["embassy-stm32/stm32f207zg", "chrono", "not-gpdma", "eth"]     # Nucleo
-stm32f303ze = ["embassy-stm32/stm32f303ze", "chrono", "not-gpdma"]     # Nucleo
-stm32l496zg = ["embassy-stm32/stm32l496zg", "not-gpdma"]     # Nucleo
+stm32f103c8 = ["embassy-stm32/stm32f103c8", "not-gpdma"]
+stm32f429zi = ["embassy-stm32/stm32f429zi", "chrono", "eth", "stop", "can", "not-gpdma", "dac-adc-pin", "rng"]
+stm32g071rb = ["embassy-stm32/stm32g071rb", "not-gpdma", "dac-adc-pin"]
+stm32c031c6 = ["embassy-stm32/stm32c031c6", "not-gpdma"]
+stm32g491re = ["embassy-stm32/stm32g491re", "chrono", "not-gpdma", "rng"]
+stm32h755zi = ["embassy-stm32/stm32h755zi-cm7", "chrono", "not-gpdma", "eth", "dac-adc-pin", "rng"]
+stm32wb55rg = ["embassy-stm32/stm32wb55rg", "chrono", "not-gpdma", "ble", "mac" , "rng"]
+stm32h563zi = ["embassy-stm32/stm32h563zi", "chrono", "eth", "rng"]
+stm32u585ai = ["embassy-stm32/stm32u585ai", "chrono", "rng"]
+stm32l073rz = ["embassy-stm32/stm32l073rz", "not-gpdma", "rng"]
+stm32l152re = ["embassy-stm32/stm32l152re", "chrono", "not-gpdma"]
+stm32l4a6zg = ["embassy-stm32/stm32l4a6zg", "chrono", "not-gpdma", "rng"]
+stm32l4r5zi = ["embassy-stm32/stm32l4r5zi", "chrono", "not-gpdma", "rng"]
+stm32l552ze = ["embassy-stm32/stm32l552ze", "not-gpdma", "rng"]
+stm32f767zi = ["embassy-stm32/stm32f767zi", "chrono", "not-gpdma", "eth", "rng"]
+stm32f207zg = ["embassy-stm32/stm32f207zg", "chrono", "not-gpdma", "eth", "rng"]
+stm32f303ze = ["embassy-stm32/stm32f303ze", "chrono", "not-gpdma"]
+stm32l496zg = ["embassy-stm32/stm32l496zg", "not-gpdma", "rng"]
 
 eth = []
+rng = []
 sdmmc = []
 stop = ["embassy-stm32/low-power"]
 chrono = ["embassy-stm32/chrono", "dep:chrono"]
@@ -87,6 +88,11 @@ path = "src/bin/gpio.rs"
 required-features = []
 
 [[bin]]
+name = "rng"
+path = "src/bin/rng.rs"
+required-features = [ "rng",]
+
+[[bin]]
 name = "rtc"
 path = "src/bin/rtc.rs"
 required-features = [ "chrono",]
diff --git a/tests/stm32/src/bin/rng.rs b/tests/stm32/src/bin/rng.rs
new file mode 100644
index 000000000..65da737d0
--- /dev/null
+++ b/tests/stm32/src/bin/rng.rs
@@ -0,0 +1,50 @@
+// required-features: rng
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+#[path = "../common.rs"]
+mod common;
+use common::*;
+use embassy_executor::Spawner;
+use embassy_stm32::rng::Rng;
+use embassy_stm32::{bind_interrupts, peripherals, rng};
+use {defmt_rtt as _, panic_probe as _};
+
+#[cfg(any(feature = "stm32l4a6zg", feature = "stm32h755zi", feature = "stm32f429zi"))]
+bind_interrupts!(struct Irqs {
+   HASH_RNG => rng::InterruptHandler<peripherals::RNG>;
+});
+#[cfg(any(feature = "stm32l073rz"))]
+bind_interrupts!(struct Irqs {
+   RNG_LPUART1 => rng::InterruptHandler<peripherals::RNG>;
+});
+#[cfg(not(any(
+    feature = "stm32l4a6zg",
+    feature = "stm32l073rz",
+    feature = "stm32h755zi",
+    feature = "stm32f429zi"
+)))]
+bind_interrupts!(struct Irqs {
+   RNG => rng::InterruptHandler<peripherals::RNG>;
+});
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p: embassy_stm32::Peripherals = embassy_stm32::init(config());
+
+    let mut rng = Rng::new(p.RNG, Irqs);
+
+    let mut buf1 = [0u8; 16];
+    unwrap!(rng.async_fill_bytes(&mut buf1).await);
+    info!("random bytes: {:02x}", buf1);
+
+    let mut buf2 = [0u8; 16];
+    unwrap!(rng.async_fill_bytes(&mut buf2).await);
+    info!("random bytes: {:02x}", buf2);
+
+    defmt::assert!(buf1 != buf2);
+
+    info!("Test OK");
+    cortex_m::asm::bkpt();
+}