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/*
* RTEMS for Nintendo DS realtime clock driver.
*
* Copyright (c) 2008 by Cedric Gestes <ctaf42@gmail.com>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
*
* http://www.rtems.com/license/LICENSE
*/
#include <rtems.h>
#include <libchip/rtc.h>
#include <bsp.h>
#include <nds.h>
rtems_device_minor_number RTC_Minor;
size_t RTC_Count = 1;
/*
* probe for a rtc. we always claim to have one.
*/
bool
nds_rtc_probe (int minor)
{
return true;
}
/*
* initialize the nds rtc.
*/
void
nds_rtc_init (int minor)
{
/* nothing to do here (already done in the arm7 main) */
printk ("[+] rtc started\n");
}
/*
* read current time from nds real-time clock chip and convert it
* to the rtems_time_of_day structure.
*/
int
nds_rtc_get_time (int minor, rtems_time_of_day * time)
{
time->year = 2000 + IPC->time.rtc.year;
time->month = IPC->time.rtc.month;
time->day = IPC->time.rtc.day;
time->hour = IPC->time.rtc.hours;
time->minute = IPC->time.rtc.minutes;
time->second = IPC->time.rtc.seconds;
time->ticks = 0;
return 0;
}
/*
* set time to the arm7 nds rtc.
* NOTE: this is not supported.
*/
int
nds_rtc_set_time (int minor, const rtems_time_of_day * time)
{
return -1;
}
/*
* driver function table.
*/
rtc_fns nds_rtc_fns = {
nds_rtc_init,
nds_rtc_get_time,
nds_rtc_set_time
};
/*
* the following table configures the RTC drivers used in this BSP
*/
rtc_tbl RTC_Table[] = {
{
"/dev/rtc", /* sDeviceName */
RTC_CUSTOM, /* deviceType */
&nds_rtc_fns, /* pDeviceFns */
nds_rtc_probe, /* deviceProbe */
NULL, /* pDeviceParams */
0, /* ulCtrlPort1 */
0, /* ulDataPort */
NULL, /* getRegister */
NULL /* setRegister */
}
};
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