Handout

kernel/device/serialstream.cc

@@ -0,0 +1,37 @@
+#include "serialstream.h"
+
+SerialStream::SerialStream(ComPort port, BaudRate baud_rate, DataBits data_bits,
+						   StopBits stop_bits, Parity parity)
+	: Serial(port, baud_rate, data_bits, stop_bits, parity) {}
+
+void SerialStream::flush() {
+	print(buffer, pos);
+	pos = 0;
+}
+
+void SerialStream::setForeground(Color c) {
+	*this << "\e[" << (30 + static_cast<uint32_t>(c)) << 'm';
+}
+
+void SerialStream::setBackground(Color c) {
+	*this << "\e[" << (40 + static_cast<uint32_t>(c)) << 'm';
+}
+
+void SerialStream::setAttribute(Attrib a) {
+	*this << "\e[" << static_cast<uint32_t>(a) << 'm';
+}
+
+void SerialStream::reset() { *this << "\ec" << ::flush; }
+
+void SerialStream::setPos(int x, int y) {
+	*this << "\e[" << (y + 1) << ';' << (x + 1) << 'H' << ::flush;
+}
+
+void SerialStream::print(char* str, int length) {
+	for (int p = 0; p < length; p++) {
+		if (str[p] == '\n' && (p == 0 || str[p - 1] != '\r')) {
+			write('\r');
+		}
+		write(str[p]);
+	}
+}