From 5d6354ccbd62527452968074c4a92a4fc6c6a635 Mon Sep 17 00:00:00 2001
From: BMCG0011 <161685058+BMCG0011@users.noreply.github.com>
Date: Wed, 24 Jul 2024 05:47:59 +1000
Subject: [PATCH] =?UTF-8?q?Expose=20InputPin.is=5Finterrupt=5Fset=20in=20i?=
 =?UTF-8?q?mplementation=20of=20esp-hal::gpio::=E2=80=A6=20(#1839)?=
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* Expose InputPin.is_interrupt_set in implementation of esp-hal::gpio::Input

* Move entry in changelog from changed to added
---
 esp-hal/CHANGELOG.md               |  1 +
 esp-hal/src/gpio/mod.rs            |  6 ++++++
 examples/src/bin/gpio_interrupt.rs | 12 ++++++++++++
 3 files changed, 19 insertions(+)

diff --git a/esp-hal/CHANGELOG.md b/esp-hal/CHANGELOG.md
index df465d84cf3..9a2d23ea431 100644
--- a/esp-hal/CHANGELOG.md
+++ b/esp-hal/CHANGELOG.md
@@ -42,6 +42,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - uart: Make `rx_timeout` optional in Config struct (#1759)
 - Add interrupt related functions to `PeriodicTimer`/`OneShotTimer`, added `ErasedTimer` (#1753)
 - Added blocking `read_bytes` method to `Uart` and `UartRx` (#1784)
+- Add method to expose `InputPin::is_interrupt_set` in `Input<InputPin>` for use in interrupt handlers (#1829)
 
 ### Fixed
 
diff --git a/esp-hal/src/gpio/mod.rs b/esp-hal/src/gpio/mod.rs
index 4f1deff0c73..a605027753c 100644
--- a/esp-hal/src/gpio/mod.rs
+++ b/esp-hal/src/gpio/mod.rs
@@ -1727,6 +1727,12 @@ where
         self.pin.clear_interrupt(private::Internal);
     }
 
+    /// Checks if the interrupt status bit for this Pin is set
+    #[inline]
+    pub fn is_interrupt_set(&self) -> bool {
+        self.pin.is_interrupt_set(private::Internal)
+    }
+
     /// Enable as a wake-up source.
     ///
     /// This will unlisten for interrupts
diff --git a/examples/src/bin/gpio_interrupt.rs b/examples/src/bin/gpio_interrupt.rs
index aa51b43d30f..a4f0cfad313 100644
--- a/examples/src/bin/gpio_interrupt.rs
+++ b/examples/src/bin/gpio_interrupt.rs
@@ -73,6 +73,18 @@ fn handler() {
     #[cfg(not(any(feature = "esp32", feature = "esp32s2", feature = "esp32s3")))]
     esp_println::println!("GPIO Interrupt");
 
+    if critical_section::with(|cs| {
+        BUTTON
+            .borrow_ref_mut(cs)
+            .as_mut()
+            .unwrap()
+            .is_interrupt_set()
+    }) {
+        esp_println::println!("Button was the source of the interrupt");
+    } else {
+        esp_println::println!("Button was not the source of the interrupt");
+    }
+
     critical_section::with(|cs| {
         BUTTON
             .borrow_ref_mut(cs)