Adding I2C HIL test

hil-test/Cargo.toml

@@ -51,6 +51,10 @@ harness = false
 name    = "interrupt"
 harness = false
 
+[[test]]
+name    = "i2c"
+harness = false
+
 [[test]]
 name    = "i2s"
 harness = false

hil-test/README.md

@@ -68,35 +68,39 @@ The [`hil.yml`] workflow builds the test suite for all our available targets and
 Our self-hosted runners have the following setup:
 - ESP32-C2 (`esp32c2-jtag`):
   - Devkit: `ESP8684-DevKitM-1` connected via UART.
+    - `GPIO18` and `GPIO9` are I2C pins.
     - `GPIO2` and `GPIO3` are connected.
   - Probe: `ESP-Prog` connected with the [following connections][connection_c2]
   - RPi: Raspbian 12 configured with the following [setup]
 - ESP32-C3 (`rustboard`):
   - Devkit: `ESP32-C3-DevKit-RUST-1` connected via USB-Serial-JTAG.
+    - `GPIO4` and `GPIO5` are I2C pins.
     - `GPIO2` and `GPIO3` are connected.
-    - `GPIO5` and `GPIO6` are connected.
   - RPi: Raspbian 12 configured with the following [setup]
 - ESP32-C6 (`esp32c6-usb`):
   - Devkit: `ESP32-C6-DevKitC-1 V1.2` connected via USB-Serial-JTAG (`USB` port).
+    - `GPIO6` and `GPIO7` are I2C pins.
     - `GPIO2` and `GPIO3` are connected.
-    - `GPIO5` and `GPIO6` are connected.
+    - `GPIO4` and `GPIO5` are connected.
   - RPi: Raspbian 12 configured with the following [setup]
 - ESP32-H2 (`esp32h2-usb`):
   - Devkit: `ESP32-H2-DevKitM-1` connected via USB-Serial-JTAG (`USB` port).
+    - `GPIO12` and `GPIO22` are I2C pins.
     - `GPIO2` and `GPIO3` are connected.
-    - `GPIO5` and `GPIO8` are connected.
+    - `GPIO4` and `GPIO5` are connected.
   - RPi: Raspbian 12 configured with the following [setup]
 - ESP32-S2 (`esp32s2-jtag`):
   - Devkit: `ESP32-S2-Saola-1` connected via UART.
-    - `GPIO2` and `GPIO3` are connected.
-    - `GPIO5` and `GPIO6` are connected.
+    - `GPIO2` and `GPIO3` are I2C pins.
+    - `GPIO9` and `GPIO10` are connected.
   - Probe: `ESP-Prog` connected with the [following connections][connection_s2]
   - RPi: Raspbian 12 configured with the following [setup]
 - ESP32-S3 (`esp32s3-usb`):
   - Devkit: `ESP32-S3-DevKitC-1` connected via USB-Serial-JTAG.
-    - `GPIO2` and `GPIO3` are connected.
-    - `GPIO5` and `GPIO6` are connected.
+    - `GPIO2` and `GPIO3` are I2C pins.
+    - `GPIO4` and `GPIO5` are connected.
     - `GPIO1` and `GPIO21` are connected.
+    - `GPIO9` and `GPIO10` are connected.
     - `GPIO43 (TX)` and `GPIO45` are connected.
   - RPi: Raspbian 12 configured with the following [setup]
 

hil-test/src/lib.rs

@@ -22,3 +22,37 @@ unsafe impl defmt::Logger for Logger {
 use defmt_rtt as _;
 // Make sure esp_backtrace is not removed.
 use esp_backtrace as _;
+
+#[macro_export]
+macro_rules! i2c_pins {
+    ($io:expr) => {{
+        // Order: (SDA, SCL)
+        cfg_if::cfg_if! {
+            if #[cfg(any(esp32s2, esp32s3))] {
+                ($io.pins.gpio2, $io.pins.gpio3)
+            } else if #[cfg(esp32c6)] {
+                ($io.pins.gpio6, $io.pins.gpio7)
+            } else if #[cfg(esp32h2)] {
+                ($io.pins.gpio12, $io.pins.gpio22)
+            } else if #[cfg(esp32c2)] {
+                ($io.pins.gpio18, $io.pins.gpio9)
+            } else {
+                ($io.pins.gpio4, $io.pins.gpio5)
+            }
+        }
+    }};
+}
+
+#[macro_export]
+macro_rules! common_test_pins {
+    ($io:expr) => {{
+        cfg_if::cfg_if! {
+            if #[cfg(any(esp32s2, esp32s3))] {
+                ($io.pins.gpio9, $io.pins.gpio10)
+            }
+            else {
+                ($io.pins.gpio2, $io.pins.gpio3)
+            }
+        }
+    }};
+}