forked from Imagelibrary/rtems
94 lines
1.8 KiB
C
94 lines
1.8 KiB
C
/**
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* @file
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*
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* @ingroup lpc24xx
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*
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* @brief RTC configuration.
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*/
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/*
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* Copyright (c) 2008
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* Embedded Brains GmbH
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* Obere Lagerstr. 30
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* D-82178 Puchheim
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* Germany
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* rtems@embedded-brains.de
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*
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
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*/
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#include <libchip/rtc.h>
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#include <bsp/lpc24xx.h>
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#define LPC24XX_RTC_NUMBER 1
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static void lpc24xx_rtc_initialize( int minor)
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{
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/* Enable the RTC and use external clock */
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RTC_CCR = RTC_CCR_CLKEN | RTC_CCR_CLKSRC;
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/* Disable interrupts */
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RTC_CIIR = 0;
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RTC_CISS = 0;
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RTC_AMR = 0xff;
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/* Clear interrupts */
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RTC_ILR = RTC_ILR_RTCCIF | RTC_ILR_RTCALF | RTC_ILR_RTSSF;
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}
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static int lpc24xx_rtc_get_time( int minor, rtems_time_of_day *tod)
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{
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tod->ticks = 0;
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tod->second = RTC_SEC;
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tod->minute = RTC_MIN;
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tod->hour = RTC_HOUR;
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tod->day = RTC_DOM;
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tod->month = RTC_MONTH;
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tod->year = RTC_YEAR;
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return 0;
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}
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static int lpc24xx_rtc_set_time( int minor, const rtems_time_of_day *tod)
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{
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RTC_SEC = tod->second;
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RTC_MIN = tod->minute;
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RTC_HOUR = tod->hour;
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RTC_DOM = tod->day;
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RTC_MONTH = tod->month;
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RTC_YEAR = tod->year;
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return 0;
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}
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static bool lpc24xx_rtc_probe( int minor)
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{
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return true;
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}
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const rtc_fns lpc24xx_rtc_ops = {
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.deviceInitialize = lpc24xx_rtc_initialize,
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.deviceGetTime = lpc24xx_rtc_get_time,
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.deviceSetTime = lpc24xx_rtc_set_time
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};
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unsigned long RTC_Count = LPC24XX_RTC_NUMBER;
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rtems_device_minor_number RTC_Minor = 0;
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rtc_tbl RTC_Table [LPC24XX_RTC_NUMBER] = {
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{
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.sDeviceName = "/dev/rtc",
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.deviceType = RTC_CUSTOM,
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.pDeviceFns = &lpc24xx_rtc_ops,
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.deviceProbe = lpc24xx_rtc_probe,
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.pDeviceParams = NULL,
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.ulCtrlPort1 = 0,
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.ulDataPort = 0,
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.getRegister = NULL,
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.setRegister = NULL
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}
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};
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