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81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/*
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* include/asm-mips/rtc.h
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*
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* (Really an interface for drivers/char/genrtc.c)
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*
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* Copyright (C) 2004 MontaVista Software Inc.
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* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
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*
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* Please read the COPYING file for all license details.
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*/
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#ifndef _MIPS_RTC_H
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#define _MIPS_RTC_H
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#ifdef __KERNEL__
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#include <linux/spinlock.h>
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#include <linux/rtc.h>
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#include <asm/time.h>
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#define RTC_PIE 0x40 /* periodic interrupt enable */
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#define RTC_AIE 0x20 /* alarm interrupt enable */
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#define RTC_UIE 0x10 /* update-finished interrupt enable */
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/* some dummy definitions */
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#define RTC_BATT_BAD 0x100 /* battery bad */
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#define RTC_SQWE 0x08 /* enable square-wave output */
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#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */
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#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */
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#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */
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static DEFINE_SPINLOCK(mips_rtc_lock);
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static inline unsigned int get_rtc_time(struct rtc_time *time)
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{
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unsigned long nowtime;
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spin_lock(&mips_rtc_lock);
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nowtime = rtc_get_time();
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to_tm(nowtime, time);
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time->tm_year -= 1900;
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spin_unlock(&mips_rtc_lock);
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return RTC_24H;
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}
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static inline int set_rtc_time(struct rtc_time *time)
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{
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unsigned long nowtime;
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int ret;
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spin_lock(&mips_rtc_lock);
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nowtime = mktime(time->tm_year+1900, time->tm_mon+1,
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time->tm_mday, time->tm_hour, time->tm_min,
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time->tm_sec);
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ret = rtc_set_time(nowtime);
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spin_unlock(&mips_rtc_lock);
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return ret;
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}
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static inline unsigned int get_rtc_ss(void)
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{
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struct rtc_time h;
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get_rtc_time(&h);
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return h.tm_sec;
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}
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static inline int get_rtc_pll(struct rtc_pll_info *pll)
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{
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return -EINVAL;
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}
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static inline int set_rtc_pll(struct rtc_pll_info *pll)
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{
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return -EINVAL;
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}
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#endif
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#endif
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