summaryrefslogtreecommitdiff
path: root/src/arch/atmega2560/driver/stdout2.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/arch/atmega2560/driver/stdout2.cc')
-rw-r--r--src/arch/atmega2560/driver/stdout2.cc39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/arch/atmega2560/driver/stdout2.cc b/src/arch/atmega2560/driver/stdout2.cc
new file mode 100644
index 0000000..254226e
--- /dev/null
+++ b/src/arch/atmega2560/driver/stdout2.cc
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2024 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "driver/stdout2.h"
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+#undef BAUD
+#define BAUD CONFIG_arch_atmega2560_uart2_baud
+
+#include <util/setbaud.h>
+
+void StandardOutput2::setup()
+{
+ UBRR2H = UBRRH_VALUE;
+ UBRR2L = UBRRL_VALUE;
+
+#if USE_2X
+ UCSR2A |= _BV(U2X2);
+#else
+ UCSR2A &= ~_BV(U2X2);
+#endif
+
+ UCSR2B |= _BV(RXEN2) | _BV(TXEN2);
+ UCSR2C = _BV(UCSZ21) | _BV(UCSZ20);
+}
+
+void StandardOutput2::put(char c)
+{
+ while (!(UCSR2A & _BV(UDRE2)));
+ UDR2 = c;
+ if (c == '\n') {
+ put('\r');
+ }
+}
+
+StandardOutput2 kout2;