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/Ethereal-msm8939-beta9/arch/m68k/include/asm/rtc.h

https://bitbucket.org/MilosStamenkovic95/etherealos
C Header | 79 lines | 52 code | 11 blank | 16 comment | 5 complexity | 0f2893e7a8ed671c7ceb4ed0edd67d4b MD5 | raw file
 1/* include/asm-m68k/rtc.h
 2 *
 3 * Copyright Richard Zidlicky
 4 * implementation details for genrtc/q40rtc driver
 5 */
 6/* permission is hereby granted to copy, modify and redistribute this code
 7 * in terms of the GNU Library General Public License, Version 2 or later,
 8 * at your option.
 9 */
10
11#ifndef _ASM_RTC_H
12#define _ASM_RTC_H
13
14#ifdef __KERNEL__
15
16#include <linux/rtc.h>
17#include <asm/errno.h>
18#include <asm/machdep.h>
19
20#define RTC_PIE 0x40		/* periodic interrupt enable */
21#define RTC_AIE 0x20		/* alarm interrupt enable */
22#define RTC_UIE 0x10		/* update-finished interrupt enable */
23
24/* some dummy definitions */
25#define RTC_BATT_BAD 0x100	/* battery bad */
26#define RTC_SQWE 0x08		/* enable square-wave output */
27#define RTC_DM_BINARY 0x04	/* all time/date values are BCD if clear */
28#define RTC_24H 0x02		/* 24 hour mode - else hours bit 7 means pm */
29#define RTC_DST_EN 0x01	        /* auto switch DST - works f. USA only */
30
31static inline unsigned int get_rtc_time(struct rtc_time *time)
32{
33	/*
34	 * Only the values that we read from the RTC are set. We leave
35	 * tm_wday, tm_yday and tm_isdst untouched. Even though the
36	 * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
37	 * by the RTC when initially set to a non-zero value.
38	 */
39	if (mach_hwclk)
40		mach_hwclk(0, time);
41	return RTC_24H;
42}
43
44static inline int set_rtc_time(struct rtc_time *time)
45{
46	if (mach_hwclk)
47		return mach_hwclk(1, time);
48	return -EINVAL;
49}
50
51static inline unsigned int get_rtc_ss(void)
52{
53	if (mach_get_ss)
54		return mach_get_ss();
55	else{
56		struct rtc_time h;
57
58		get_rtc_time(&h);
59		return h.tm_sec;
60	}
61}
62
63static inline int get_rtc_pll(struct rtc_pll_info *pll)
64{
65	if (mach_get_rtc_pll)
66		return mach_get_rtc_pll(pll);
67	else
68		return -EINVAL;
69}
70static inline int set_rtc_pll(struct rtc_pll_info *pll)
71{
72	if (mach_set_rtc_pll)
73		return mach_set_rtc_pll(pll);
74	else
75		return -EINVAL;
76}
77#endif /* __KERNEL__ */
78
79#endif /* _ASM__RTC_H */