blob: 5d3e038598441c58b459c37e30aa1e6b0a09ccc5 [file] [log] [blame]
Uwe Zeisbergerf30c2262006-10-03 23:01:26 +02001/* include/asm-m68k/rtc.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 *
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 mach_hwclk(0, time);
40 return RTC_24H;
41}
42
43static inline int set_rtc_time(struct rtc_time *time)
44{
45 return mach_hwclk(1, time);
46}
47
48static inline unsigned int get_rtc_ss(void)
49{
50 if (mach_get_ss)
51 return mach_get_ss();
52 else{
53 struct rtc_time h;
54
55 get_rtc_time(&h);
56 return h.tm_sec;
57 }
58}
59
60static inline int get_rtc_pll(struct rtc_pll_info *pll)
61{
62 if (mach_get_rtc_pll)
63 return mach_get_rtc_pll(pll);
64 else
65 return -EINVAL;
66}
67static inline int set_rtc_pll(struct rtc_pll_info *pll)
68{
69 if (mach_set_rtc_pll)
70 return mach_set_rtc_pll(pll);
71 else
72 return -EINVAL;
73}
74#endif /* __KERNEL__ */
75
76#endif /* _ASM__RTC_H */