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Diffstat (limited to 'src/arch/atmega2560/driver/stdout1.cc')
-rw-r--r--src/arch/atmega2560/driver/stdout1.cc39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/arch/atmega2560/driver/stdout1.cc b/src/arch/atmega2560/driver/stdout1.cc
new file mode 100644
index 0000000..e686237
--- /dev/null
+++ b/src/arch/atmega2560/driver/stdout1.cc
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "driver/stdout1.h"
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+#undef BAUD
+#define BAUD CONFIG_arch_atmega2560_uart1_baud
+
+#include <util/setbaud.h>
+
+void StandardOutput1::setup()
+{
+ UBRR1H = UBRRH_VALUE;
+ UBRR1L = UBRRL_VALUE;
+
+#if USE_2X
+ UCSR1A |= _BV(U2X1);
+#else
+ UCSR1A &= ~_BV(U2X1);
+#endif
+
+ UCSR1B |= _BV(RXEN1) | _BV(TXEN1);
+ UCSR1C = _BV(UCSZ11) | _BV(UCSZ10);
+}
+
+void StandardOutput1::put(char c)
+{
+ while (!(UCSR1A & _BV(UDRE1)));
+ UDR1 = c;
+ if (c == '\n') {
+ put('\r');
+ }
+}
+
+StandardOutput1 kout1;