From d4b6bef1c4a6495a4b6fc8ca9f2c438e23754261 Mon Sep 17 00:00:00 2001
From: Birte Kristina Friesel <derf@finalrewind.org>
Date: Sat, 27 Jan 2024 19:51:48 +0100
Subject: msp430fr5969: add UART input on eUSCI_A1

---
 src/arch/msp430fr5969lp/driver/stdin1.cc | 40 ++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 src/arch/msp430fr5969lp/driver/stdin1.cc

(limited to 'src/arch/msp430fr5969lp/driver')

diff --git a/src/arch/msp430fr5969lp/driver/stdin1.cc b/src/arch/msp430fr5969lp/driver/stdin1.cc
new file mode 100644
index 0000000..efb7f90
--- /dev/null
+++ b/src/arch/msp430fr5969lp/driver/stdin1.cc
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2020 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "driver/stdin1.h"
+#include <msp430.h>
+
+void StandardInput1::setup()
+{
+	UCA1CTLW0 |= UCSWRST;
+	P2SEL0 &= ~BIT6;
+	P2SEL1 |= BIT6;
+	UCA1CTLW0 &= ~UCSWRST;
+	UCA1IE |= UCRXIE;
+}
+
+bool StandardInput1::hasKey()
+{
+	if (write_pos != read_pos) {
+		return true;
+	}
+	return false;
+}
+
+char StandardInput1::getKey()
+{
+	char ret = buffer[read_pos++];
+	read_pos %= bufsize;
+	return ret;
+}
+
+StandardInput1 kin1;
+
+__attribute__((interrupt(USCI_A1_VECTOR))) __attribute__((wakeup)) void handle_stdin1()
+{
+	if (UCA1IFG & UCRXIFG) {
+		kin1.addKey(UCA1RXBUF);
+	}
+}
-- 
cgit v1.2.3