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f2783c15 PM |
1 | /* |
2 | * Real-time clock definitions and interfaces | |
3 | * | |
4 | * Author: Tom Rini <trini@mvista.com> | |
5 | * | |
6 | * 2002 (c) MontaVista, Software, Inc. This file is licensed under | |
7 | * the terms of the GNU General Public License version 2. This program | |
8 | * is licensed "as is" without any warranty of any kind, whether express | |
9 | * or implied. | |
10 | * | |
11 | * Based on: | |
12 | * include/asm-m68k/rtc.h | |
13 | * | |
14 | * Copyright Richard Zidlicky | |
15 | * implementation details for genrtc/q40rtc driver | |
16 | * | |
17 | * And the old drivers/macintosh/rtc.c which was heavily based on: | |
18 | * Linux/SPARC Real Time Clock Driver | |
19 | * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) | |
20 | * | |
21 | * With additional work by Paul Mackerras and Franz Sirl. | |
22 | */ | |
23 | ||
24 | #ifndef __ASM_POWERPC_RTC_H__ | |
25 | #define __ASM_POWERPC_RTC_H__ | |
26 | ||
27 | #ifdef __KERNEL__ | |
28 | ||
29 | #include <linux/rtc.h> | |
30 | ||
31 | #include <asm/machdep.h> | |
32 | #include <asm/time.h> | |
33 | ||
34 | #define RTC_PIE 0x40 /* periodic interrupt enable */ | |
35 | #define RTC_AIE 0x20 /* alarm interrupt enable */ | |
36 | #define RTC_UIE 0x10 /* update-finished interrupt enable */ | |
37 | ||
38 | /* some dummy definitions */ | |
39 | #define RTC_BATT_BAD 0x100 /* battery bad */ | |
40 | #define RTC_SQWE 0x08 /* enable square-wave output */ | |
41 | #define RTC_DM_BINARY 0x04 /* all time/date values are BCD if clear */ | |
42 | #define RTC_24H 0x02 /* 24 hour mode - else hours bit 7 means pm */ | |
43 | #define RTC_DST_EN 0x01 /* auto switch DST - works f. USA only */ | |
44 | ||
45 | static inline unsigned int get_rtc_time(struct rtc_time *time) | |
46 | { | |
47 | if (ppc_md.get_rtc_time) | |
48 | ppc_md.get_rtc_time(time); | |
49 | return RTC_24H; | |
50 | } | |
51 | ||
52 | /* Set the current date and time in the real time clock. */ | |
53 | static inline int set_rtc_time(struct rtc_time *time) | |
54 | { | |
b6ba9281 PM |
55 | if (ppc_md.set_rtc_time) |
56 | return ppc_md.set_rtc_time(time); | |
f2783c15 PM |
57 | return -EINVAL; |
58 | } | |
59 | ||
60 | static inline unsigned int get_rtc_ss(void) | |
61 | { | |
62 | struct rtc_time h; | |
63 | ||
64 | get_rtc_time(&h); | |
65 | return h.tm_sec; | |
66 | } | |
67 | ||
68 | static inline int get_rtc_pll(struct rtc_pll_info *pll) | |
69 | { | |
70 | return -EINVAL; | |
71 | } | |
72 | static inline int set_rtc_pll(struct rtc_pll_info *pll) | |
73 | { | |
74 | return -EINVAL; | |
75 | } | |
76 | ||
77 | #endif /* __KERNEL__ */ | |
78 | #endif /* __ASM_POWERPC_RTC_H__ */ |