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iris/source/rtc.ccp
2010-08-10 10:09:50 +02:00

59 lines
1.5 KiB
COBOL

#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