add class for handling button events - signals main thread when event occurs and main thread can check event - supports SW1 press, SW2 press, and SW1 hold

1 files changed, 36 insertions, 0 deletions

diff --git a/ButtonHandler/ButtonHandler.h b/ButtonHandler/ButtonHandler.h
new file mode 100644
index 0000000..3eb8298
--- /dev/null
+++ b/ButtonHandler/ButtonHandler.h
@@ -0,0 +1,36 @@
+#ifndef __BUTTONHANDLER_H__
+#define __BUTTONHANDLER_H__
+
+#include "mbed.h"
+#include "rtos.h"
+
+#define buttonSignal (uint32_t)0x01
+
+typedef enum {
+    none = 0,
+    sw1_press,
+    sw1_hold,
+    sw2_press
+} ButtonEvent;
+
+class ButtonHandler {
+    public:
+        ButtonHandler(osThreadId main);
+        ~ButtonHandler();
+
+        ButtonEvent getButtonEvent();
+
+    private:
+        void sw1_fall();
+        void sw1_rise();
+        void sw2_fall();
+
+        osThreadId _main;
+        InterruptIn _sw1;
+        InterruptIn _sw2;
+        Timer _sw1_timer;
+        time_t _sw1_time;
+        ButtonEvent _event;
+};
+
+#endif