Initial firmware commit.

firmware/common/wm8731.cpp

@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <cstdint>
+#include <array>
+
+#include "wm8731.hpp"
+
+namespace wolfson {
+namespace wm8731 {
+
+void WM8731::write(const address_t reg_address, const reg_t value) {
+	const uint16_t word = (reg_address << 9) | value;
+	const std::array<uint8_t, 2> values {
+		static_cast<uint8_t>(word >> 8),
+		static_cast<uint8_t>(word & 0xff),
+	};
+	bus.transmit(bus_address, values.data(), values.size());
+}
+
+} /* namespace wm8731 */
+} /* namespace wolfson */