#pypp 0
// Iris: micro-kernel for a capability-based operating system.
// source/rtc.ccp: real-time clock driver.
// Copyright 2010 Bas Wijnen <wijnen@debian.org>
//
// 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.

#include "devices.hh"
#define ARCH
#include "arch.hh"

static void ready ():
	while !rtc_write_ready ():
		Iris::schedule ()

static unsigned get_second ():
	ready ()
	unsigned ret = rtc_get_second ()
	unsigned r2
	while true:
		ready ()
		r2 = rtc_get_second ()
		if ret == r2:
			return ret
		kdebug ("ret != r2\n")
		ret = r2

Iris::Num start ():
	map_cpm ()
	map_rtc ()
	cpm_start_rtc ()
	ready ()
	rtc_enabled ()
	ready ()
	rtc_set_nc1Hz_val (RTC_CLOCK)
	ready ()
	rtc_enable_1Hz_irq ()
	rtc_clear_alarm_flag ()
	rtc_set_hwfcr_val (0)
	while true:
		ready ()
		rtc_clear_1Hz_flag ()
		ready ()
		Iris::register_interrupt (IRQ_RTC)
		Iris::wait ()
		kdebug ("tick\n")
	return 0