79 строки
2.0 KiB
C
79 строки
2.0 KiB
C
/*
|
|
* Real-time clock definitions and interfaces
|
|
*
|
|
* Author: Tom Rini <trini@mvista.com>
|
|
*
|
|
* 2002 (c) MontaVista, Software, Inc. This file is licensed under
|
|
* the terms of the GNU General Public License version 2. This program
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
|
* or implied.
|
|
*
|
|
* Based on:
|
|
* include/asm-m68k/rtc.h
|
|
*
|
|
* Copyright Richard Zidlicky
|
|
* implementation details for genrtc/q40rtc driver
|
|
*
|
|
* And the old drivers/macintosh/rtc.c which was heavily based on:
|
|
* Linux/SPARC Real Time Clock Driver
|
|
* Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
|
|
*
|
|
* With additional work by Paul Mackerras and Franz Sirl.
|
|
*/
|
|
|
|
#ifndef __ASM_POWERPC_RTC_H__
|
|
#define __ASM_POWERPC_RTC_H__
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/rtc.h>
|
|
|
|
#include <asm/machdep.h>
|
|
#include <asm/time.h>
|
|
|
|
#define RTC_PIE 0x40 /* periodic interrupt enable */
|
|
#define RTC_AIE 0x20 /* alarm interrupt enable */
|
|
#define RTC_UIE 0x10 /* update-finished interrupt enable */
|
|
|
|
/* some dummy definitions */
|
|
#define RTC_BATT_BAD 0x100 /* battery bad */
|
|
#define RTC_SQWE 0x08 /* enable square-wave output */
|
|
#define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */
|
|
#define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */
|
|
#define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */
|
|
|
|
static inline unsigned int get_rtc_time(struct rtc_time *time)
|
|
{
|
|
if (ppc_md.get_rtc_time)
|
|
ppc_md.get_rtc_time(time);
|
|
return RTC_24H;
|
|
}
|
|
|
|
/* Set the current date and time in the real time clock. */
|
|
static inline int set_rtc_time(struct rtc_time *time)
|
|
{
|
|
if (ppc_md.set_rtc_time)
|
|
return ppc_md.set_rtc_time(time);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline unsigned int get_rtc_ss(void)
|
|
{
|
|
struct rtc_time h;
|
|
|
|
get_rtc_time(&h);
|
|
return h.tm_sec;
|
|
}
|
|
|
|
static inline int get_rtc_pll(struct rtc_pll_info *pll)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int set_rtc_pll(struct rtc_pll_info *pll)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* __ASM_POWERPC_RTC_H__ */
|