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 */ 80