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/**
* @file
*
* @ingroup RTEMSBSPsARMLPC24XX
*
* @brief RTC configuration.
*/
/*
* Copyright (c) 2008 embedded brains GmbH. All rights reserved.
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <libchip/rtc.h>
#include <bsp/lpc24xx.h>
#include <bsp/io.h>
#define LPC24XX_RTC_NUMBER 1
static void lpc24xx_rtc_initialize(int minor)
{
/* Enable module power */
lpc24xx_module_enable(LPC24XX_MODULE_RTC, LPC24XX_MODULE_PCLK_DEFAULT);
/* Enable the RTC and use external clock */
RTC_CCR = RTC_CCR_CLKEN | RTC_CCR_CLKSRC;
/* Disable interrupts */
RTC_CIIR = 0;
RTC_CISS = 0;
RTC_AMR = 0xff;
/* Clear interrupts */
RTC_ILR = RTC_ILR_RTCCIF | RTC_ILR_RTCALF | RTC_ILR_RTSSF;
}
static int lpc24xx_rtc_get_time(int minor, rtems_time_of_day *tod)
{
tod->ticks = 0;
tod->second = RTC_SEC;
tod->minute = RTC_MIN;
tod->hour = RTC_HOUR;
tod->day = RTC_DOM;
tod->month = RTC_MONTH;
tod->year = RTC_YEAR;
return 0;
}
static int lpc24xx_rtc_set_time(int minor, const rtems_time_of_day *tod)
{
RTC_SEC = tod->second;
RTC_MIN = tod->minute;
RTC_HOUR = tod->hour;
RTC_DOM = tod->day;
RTC_MONTH = tod->month;
RTC_YEAR = tod->year;
return 0;
}
static bool lpc24xx_rtc_probe(int minor)
{
return true;
}
const rtc_fns lpc24xx_rtc_ops = {
.deviceInitialize = lpc24xx_rtc_initialize,
.deviceGetTime = lpc24xx_rtc_get_time,
.deviceSetTime = lpc24xx_rtc_set_time
};
size_t RTC_Count = LPC24XX_RTC_NUMBER;
rtc_tbl RTC_Table [LPC24XX_RTC_NUMBER] = {
{
.sDeviceName = "/dev/rtc",
.deviceType = RTC_CUSTOM,
.pDeviceFns = &lpc24xx_rtc_ops,
.deviceProbe = lpc24xx_rtc_probe,
.pDeviceParams = NULL,
.ulCtrlPort1 = 0,
.ulDataPort = 0,
.getRegister = NULL,
.setRegister = NULL
}
};
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