Initial firmware commit.

firmware/application/clock_manager.hpp

@@ -0,0 +1,87 @@
+/*
+ * 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.
+ */
+
+#ifndef __CLOCK_MANAGER_H__
+#define __CLOCK_MANAGER_H__
+
+#include "ch.h"
+#include "hal.h"
+
+#include "i2c_pp.hpp"
+#include "si5351.hpp"
+
+#include "lpc43xx_cpp.hpp"
+using namespace lpc43xx;
+
+class ClockManager {
+public:
+	constexpr ClockManager(
+		I2C& i2c0,
+		si5351::Si5351& clock_generator
+	) : i2c0(i2c0),
+		clock_generator(clock_generator)/*,
+		_clock_f(0)*/
+	{
+	}
+
+	void init();
+
+	void run_from_irc();
+	void run_at_full_speed();
+
+	void start_audio_pll();
+	void stop_audio_pll();
+
+	void enable_codec_clocks();
+	void disable_codec_clocks();
+
+	void enable_first_if_clock();
+	void disable_first_if_clock();
+
+	void enable_second_if_clock();
+	void disable_second_if_clock();
+
+	void set_sampling_frequency(const uint32_t frequency);
+
+private:
+	I2C& i2c0;
+	si5351::Si5351& clock_generator;
+	//uint32_t _clock_f;
+
+	void change_clock_configuration(const cgu::CLK_SEL clk_sel);
+
+	void enable_gp_clkin_source();
+	void disable_gp_clkin_source();
+
+	void enable_xtal_oscillator();
+	void disable_xtal_oscillator();
+
+	void set_m4_clock_to_irc();
+
+	void set_m4_clock_to_pll1();
+	void power_down_pll1();
+
+	void stop_peripherals();
+	void update_peripheral_clocks(const cgu::CLK_SEL clk_sel);
+	void start_peripherals(const cgu::CLK_SEL clk_sel);
+};
+
+#endif/*__CLOCK_MANAGER_H__*/