msp430fr5969: add UART input on eUSCI_A1

1 files changed, 31 insertions, 0 deletions

diff --git a/include/arch/msp430fr5969lp/driver/stdin1.h b/include/arch/msp430fr5969lp/driver/stdin1.h
new file mode 100644
index 0000000..ce000ea
--- /dev/null
+++ b/include/arch/msp430fr5969lp/driver/stdin1.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef STANDARDINPUT1_H
+#define STANDARDINPUT1_H
+
+class StandardInput1 {
+	private:
+		StandardInput1(const StandardInput1 &copy);
+		static unsigned char const bufsize = 32;
+		char buffer[bufsize];
+		volatile unsigned char write_pos;
+		unsigned char read_pos;
+
+	public:
+		StandardInput1() : write_pos(0), read_pos(0) {}
+		void setup();
+		bool hasKey();
+		char getKey();
+
+		inline void addKey(char key) {
+			buffer[write_pos++] = key;
+			write_pos %= bufsize;
+		}
+};
+
+extern StandardInput1 kin1;
+
+#endif