projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| f30c2269 | 2 | * include/asm-ppc/rtc.h |
| 1da177e4 LT |
3 | * |
| 4 | * Author: Tom Rini <[email protected]> | |
| 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 ([email protected]) | |
| 20 | * | |
| 21 | * With additional work by Paul Mackerras and Franz Sirl. | |
| 22 | */ | |
| 23 | ||
| 24 | #ifndef __ASM_RTC_H__ | |
| 25 | #define __ASM_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 | unsigned long nowtime; | |
| 49 | ||
| 50 | nowtime = (ppc_md.get_rtc_time)(); | |
| 51 | ||
| 52 | to_tm(nowtime, time); | |
| 53 | ||
| 54 | time->tm_year -= 1900; | |
| 55 | time->tm_mon -= 1; /* Make sure userland has a 0-based month */ | |
| 56 | } | |
| 57 | return RTC_24H; | |
| 58 | } | |
| 59 | ||
| 60 | /* Set the current date and time in the real time clock. */ | |
| 61 | static inline int set_rtc_time(struct rtc_time *time) | |
| 62 | { | |
| 63 | if (ppc_md.get_rtc_time) { | |
| 64 | unsigned long nowtime; | |
| 65 | ||
| 66 | nowtime = mktime(time->tm_year+1900, time->tm_mon+1, | |
| 67 | time->tm_mday, time->tm_hour, time->tm_min, | |
| 68 | time->tm_sec); | |
| 69 | ||
| 70 | (ppc_md.set_rtc_time)(nowtime); | |
| 71 | ||
| 72 | return 0; | |
| 73 | } else | |
| 74 | return -EINVAL; | |
| 75 | } | |
| 76 | ||
| 77 | static inline unsigned int get_rtc_ss(void) | |
| 78 | { | |
| 79 | struct rtc_time h; | |
| 80 | ||
| 81 | get_rtc_time(&h); | |
| 82 | return h.tm_sec; | |
| 83 | } | |
| 84 | ||
| 85 | static inline int get_rtc_pll(struct rtc_pll_info *pll) | |
| 86 | { | |
| 87 | return -EINVAL; | |
| 88 | } | |
| 89 | static inline int set_rtc_pll(struct rtc_pll_info *pll) | |
| 90 | { | |
| 91 | return -EINVAL; | |
| 92 | } | |
| 93 | ||
| 94 | #endif /* __KERNEL__ */ | |
| 95 | #endif /* __ASM_RTC_H__ */ |