Created initial config for setting up GPIO pin interrupts

src/main.rs

@@ -2,12 +2,15 @@
 
 use esp_idf_hal::{
     self,
+    gpio::*,
     i2c::{I2cConfig, I2cDriver},
     prelude::Peripherals,
     units::Hertz,
 };
 use esp_idf_sys as _; // If using the `binstart` feature of `esp-idf-sys`, always keep this module imported
 
+use std::sync::atomic::{AtomicBool, Ordering};
+
 mod error;
 use error::Error;
 
@@ -42,6 +45,16 @@ fn main() -> Result<(), Error> {
     let i2c =
         I2cDriver::new(peripherals.i2c0, sda, scl, &config).map_err(|err| Error::EspError(err))?;
 
+    // Setup GPIO interrupts
+    static FLAG: AtomicBool = AtomicBool::new(false);
+    let mut interrupt_button_handle = PinDriver::input(pins.gpio9).unwrap();
+
+    interrupt_button_handle.set_pull(Pull::Up);
+    interrupt_button_handle.set_interrupt_type(InterruptType::NegEdge);
+    unsafe {
+        interrupt_button_handle.subscribe(app_state_interrupt);
+    }
+
     // Prepare components for processing
     let mut gps: GPS = GPS::new(peripherals.uart0, gps_rx)?;
     let mut display: Display<DisplaySize128x64> =
@@ -65,3 +78,7 @@ fn main() -> Result<(), Error> {
         display.draw(text.as_str())?
     }
 }
+
+fn app_state_interrupt() {
+    println!("inteerrupt");
+}