diff options
Diffstat (limited to 'include/rtc_.h')
| -rw-r--r-- | include/rtc_.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/include/rtc_.h b/include/rtc_.h new file mode 100644 index 0000000..50b60dd --- /dev/null +++ b/include/rtc_.h @@ -0,0 +1,73 @@ +/* + * Common defines/structures/etc... for applets that need to work with the RTC. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef _BB_RTC_H_ +#define _BB_RTC_H_ + +#include "libbb.h" + +extern int rtc_adjtime_is_utc(void); +extern int rtc_xopen(const char *default_rtc, int flags); +extern time_t rtc_read_time(int fd, int utc); + + + +/* + * Everything below this point has been copied from linux/rtc.h + * to eliminate the kernel header dependency + */ + +struct linux_rtc_time { + int tm_sec; + int tm_min; + int tm_hour; + int tm_mday; + int tm_mon; + int tm_year; + int tm_wday; + int tm_yday; + int tm_isdst; +}; + +struct linux_rtc_wkalrm { + unsigned char enabled; /* 0 = alarm disabled, 1 = alarm enabled */ + unsigned char pending; /* 0 = alarm not pending, 1 = alarm pending */ + struct linux_rtc_time time; /* time the alarm is set to */ +}; + +/* + * ioctl calls that are permitted to the /dev/rtc interface, if + * any of the RTC drivers are enabled. + */ + +#define RTC_AIE_ON _IO('p', 0x01) /* Alarm int. enable on */ +#define RTC_AIE_OFF _IO('p', 0x02) /* ... off */ +#define RTC_UIE_ON _IO('p', 0x03) /* Update int. enable on */ +#define RTC_UIE_OFF _IO('p', 0x04) /* ... off */ +#define RTC_PIE_ON _IO('p', 0x05) /* Periodic int. enable on */ +#define RTC_PIE_OFF _IO('p', 0x06) /* ... off */ +#define RTC_WIE_ON _IO('p', 0x0f) /* Watchdog int. enable on */ +#define RTC_WIE_OFF _IO('p', 0x10) /* ... off */ + +#define RTC_ALM_SET _IOW('p', 0x07, struct linux_rtc_time) /* Set alarm time */ +#define RTC_ALM_READ _IOR('p', 0x08, struct linux_rtc_time) /* Read alarm time */ +#define RTC_RD_TIME _IOR('p', 0x09, struct linux_rtc_time) /* Read RTC time */ +#define RTC_SET_TIME _IOW('p', 0x0a, struct linux_rtc_time) /* Set RTC time */ +#define RTC_IRQP_READ _IOR('p', 0x0b, unsigned long) /* Read IRQ rate */ +#define RTC_IRQP_SET _IOW('p', 0x0c, unsigned long) /* Set IRQ rate */ +#define RTC_EPOCH_READ _IOR('p', 0x0d, unsigned long) /* Read epoch */ +#define RTC_EPOCH_SET _IOW('p', 0x0e, unsigned long) /* Set epoch */ + +#define RTC_WKALM_SET _IOW('p', 0x0f, struct linux_rtc_wkalrm)/* Set wakeup alarm*/ +#define RTC_WKALM_RD _IOR('p', 0x10, struct linux_rtc_wkalrm)/* Get wakeup alarm*/ + +/* interrupt flags */ +#define RTC_IRQF 0x80 /* any of the following is active */ +#define RTC_PF 0x40 +#define RTC_AF 0x20 +#define RTC_UF 0x10 + +#endif |