From 49613fc1dccd93dd1c043abf3d85b44ce79e15d0 Mon Sep 17 00:00:00 2001
From: Alexander Entinger <consulting@lxrobotics.com>
Date: Wed, 9 Aug 2023 11:33:20 +0200
Subject: [PATCH 1/4] CI: extend CI build to platforms "renesas_portenta" and
 "renesas_uno".

---
 .github/workflows/compile-examples.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/compile-examples.yml b/.github/workflows/compile-examples.yml
index c064059..5eb21fc 100644
--- a/.github/workflows/compile-examples.yml
+++ b/.github/workflows/compile-examples.yml
@@ -57,6 +57,12 @@ jobs:
             platforms: |
               - name: adafruit:samd
                 source-url:  https://adafruit.github.io/arduino-board-index/package_adafruit_index.json
+          - fqbn: arduino:renesas_portenta:portenta_c33
+            platforms: |
+              - name: arduino:renesas_portenta
+          - fqbn: arduino:renesas_uno:minima
+            platforms: |
+              - name: arduino:renesas_uno
 
     steps:
       - name: Checkout

From 08d896f4c67e83aa17d31aa0ac8533e8e1b13700 Mon Sep 17 00:00:00 2001
From: Alexander Entinger <consulting@lxrobotics.com>
Date: Wed, 9 Aug 2023 11:34:13 +0200
Subject: [PATCH 2/4] List "renesas_portenta" and "renesas_uno" as supported
 target architectures.

---
 library.properties | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library.properties b/library.properties
index 053d1ea..0cfd185 100644
--- a/library.properties
+++ b/library.properties
@@ -6,5 +6,5 @@ sentence=Arduino library for providing a consistent critical section interface o
 paragraph=
 category=Other
 url=https://github.com/107-systems/107-Arduino-CriticalSection
-architectures=samd,mbed,mbed_nano,mbed_portenta,mbed_edge,esp32,rp2040
+architectures=samd,mbed,mbed_nano,mbed_portenta,mbed_edge,esp32,rp2040,renesas_portenta,renesas_uno
 includes=107-Arduino-CriticalSection.h

From f2ebde48a53bed87e3d9d6ddb255e935dc865ce7 Mon Sep 17 00:00:00 2001
From: Alexander Entinger <consulting@lxrobotics.com>
Date: Wed, 9 Aug 2023 11:39:05 +0200
Subject: [PATCH 3/4] List support for ArduinoCore-renesas in README.

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 106a758..5458abd 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,7 @@ This library works for
 * [arduino-esp32](https://github.com/espressif/arduino-esp32): `ESP32 Dev Module`, `ESP32 Wrover Module`, ... :heavy_check_mark:
 * [arduino-pico](https://github.com/earlephilhower/arduino-pico): [`Raspberry Pi Pico`](https://www.raspberrypi.org/products/raspberry-pi-pico), `Adafruit Feather RP2040`, ... :heavy_check_mark:
 * [adafruit/ArduinoCore-samd](https://github.com/adafruit/ArduinoCore-samd): [`Adafruit Feather M4 CAN Express`](https://www.adafruit.com/product/4759), ... :heavy_check_mark:
+* [ArduinoCore-renesas](https://github.com/arduino/ArduinoCore-renesas): [`Portenta C33`](https://store.arduino.cc/products/portenta-c33), [`Uno R4 WiFi`](https://store.arduino.cc/products/uno-r4-wifi), [`Uno R4 Minima`](https://store.arduino.cc/products/uno-r4-minima), ... :heavy_check_mark:
 
 ### Example
 ```C++

From 92773474641e8bfa02221b6075bea5e15623d3d9 Mon Sep 17 00:00:00 2001
From: Alexander Entinger <consulting@lxrobotics.com>
Date: Wed, 9 Aug 2023 11:52:16 +0200
Subject: [PATCH 4/4] Implement critical section handling for the Renesas core.

---
 src/CritSec-renesas.cpp | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/CritSec-renesas.cpp

diff --git a/src/CritSec-renesas.cpp b/src/CritSec-renesas.cpp
new file mode 100644
index 0000000..6a84e1d
--- /dev/null
+++ b/src/CritSec-renesas.cpp
@@ -0,0 +1,39 @@
+/**
+ * This software is distributed under the terms of the MIT License.
+ * Copyright (c) 2023 LXRobotics.
+ * Author: Alexander Entinger <alexander.entinger@lxrobotics.com>
+ * Contributors: https://github.com/107-systems/107-Arduino-CriticalSection/graphs/contributors.
+ */
+
+/**************************************************************************************
+ * INCLUDE
+ **************************************************************************************/
+
+#include "CritSec.h"
+
+#if defined(ARDUINO_MINIMA) || defined(ARDUINO_UNOWIFIR4) || defined(ARDUINO_PORTENTA_C33)
+
+#include <Arduino.h>
+
+/**************************************************************************************
+ * GLOBAL VARIABLES
+ **************************************************************************************/
+
+static volatile uint32_t interrupt_save = 0;
+
+/**************************************************************************************
+ * FUNCTION DEFINITION
+ **************************************************************************************/
+
+extern "C" void crit_sec_enter()
+{
+  interrupt_save = __get_PRIMASK();
+  __disable_irq();
+}
+
+extern "C" void crit_sec_leave()
+{
+  __set_PRIMASK(interrupt_save);
+}
+
+#endif /* defined(ARDUINO_MINIMA) || defined(ARDUINO_UNOWIFIR4) || defined(ARDUINO_PORTENTA_C33) */