f30c226954
Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
132 lines
3.1 KiB
C
132 lines
3.1 KiB
C
/*
|
|
* include/asm-parisc/rtc.h
|
|
*
|
|
* Copyright 2002 Randolph CHung <tausq@debian.org>
|
|
*
|
|
* Based on: include/asm-ppc/rtc.h and the genrtc driver in the
|
|
* 2.4 parisc linux tree
|
|
*/
|
|
|
|
#ifndef __ASM_RTC_H__
|
|
#define __ASM_RTC_H__
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/rtc.h>
|
|
|
|
#include <asm/pdc.h>
|
|
|
|
#define SECS_PER_HOUR (60 * 60)
|
|
#define SECS_PER_DAY (SECS_PER_HOUR * 24)
|
|
|
|
|
|
#define RTC_PIE 0x40 /* periodic interrupt enable */
|
|
#define RTC_AIE 0x20 /* alarm interrupt enable */
|
|
#define RTC_UIE 0x10 /* update-finished interrupt enable */
|
|
|
|
#define RTC_BATT_BAD 0x100 /* battery bad */
|
|
|
|
/* some dummy definitions */
|
|
#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 */
|
|
|
|
# define __isleap(year) \
|
|
((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
|
|
|
|
/* How many days come before each month (0-12). */
|
|
static const unsigned short int __mon_yday[2][13] =
|
|
{
|
|
/* Normal years. */
|
|
{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
|
|
/* Leap years. */
|
|
{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
|
|
};
|
|
|
|
static inline unsigned int get_rtc_time(struct rtc_time *wtime)
|
|
{
|
|
struct pdc_tod tod_data;
|
|
long int days, rem, y;
|
|
const unsigned short int *ip;
|
|
|
|
if(pdc_tod_read(&tod_data) < 0)
|
|
return RTC_24H | RTC_BATT_BAD;
|
|
|
|
|
|
// most of the remainder of this function is:
|
|
// Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc.
|
|
// This was originally a part of the GNU C Library.
|
|
// It is distributed under the GPL, and was swiped from offtime.c
|
|
|
|
|
|
days = tod_data.tod_sec / SECS_PER_DAY;
|
|
rem = tod_data.tod_sec % SECS_PER_DAY;
|
|
|
|
wtime->tm_hour = rem / SECS_PER_HOUR;
|
|
rem %= SECS_PER_HOUR;
|
|
wtime->tm_min = rem / 60;
|
|
wtime->tm_sec = rem % 60;
|
|
|
|
y = 1970;
|
|
|
|
#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
|
|
#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
|
|
|
|
while (days < 0 || days >= (__isleap (y) ? 366 : 365))
|
|
{
|
|
/* Guess a corrected year, assuming 365 days per year. */
|
|
long int yg = y + days / 365 - (days % 365 < 0);
|
|
|
|
/* Adjust DAYS and Y to match the guessed year. */
|
|
days -= ((yg - y) * 365
|
|
+ LEAPS_THRU_END_OF (yg - 1)
|
|
- LEAPS_THRU_END_OF (y - 1));
|
|
y = yg;
|
|
}
|
|
wtime->tm_year = y - 1900;
|
|
|
|
ip = __mon_yday[__isleap(y)];
|
|
for (y = 11; days < (long int) ip[y]; --y)
|
|
continue;
|
|
days -= ip[y];
|
|
wtime->tm_mon = y;
|
|
wtime->tm_mday = days + 1;
|
|
|
|
return RTC_24H;
|
|
}
|
|
|
|
static int set_rtc_time(struct rtc_time *wtime)
|
|
{
|
|
u_int32_t secs;
|
|
|
|
secs = mktime(wtime->tm_year + 1900, wtime->tm_mon + 1, wtime->tm_mday,
|
|
wtime->tm_hour, wtime->tm_min, wtime->tm_sec);
|
|
|
|
if(pdc_tod_set(secs, 0) < 0)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
|
|
}
|
|
|
|
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_RTC_H__ */
|