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/* * Generic RTC interface. * This version contains the part of the user interface to the Real Time Clock * service. It is used with both the legacy mc146818 and also EFI * * Copyright (C) 1999 Hewlett-Packard Co. * Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com> */ #ifndef _LINUX_RTC_H #define _LINUX_RTC_H_ /* * The struct used to pass data via the following ioctl. Similar to the * struct tm in <time.h>, but it needs to be here so that the kernel * source is self contained, allowing cross-compiles, etc. etc. */ struct 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; }; /* * ioctl calls that are permitted to the /dev/rtc interface, if * CONFIG_RTC/CONFIG_EFI_RTC was 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_ALM_SET _IOW('p', 0x07, struct rtc_time) /* Set alarm time */ #define RTC_ALM_READ _IOR('p', 0x08, struct rtc_time) /* Read alarm time */ #define RTC_RD_TIME _IOR('p', 0x09, struct rtc_time) /* Read RTC time */ #define RTC_SET_TIME _IOW('p', 0x0a, struct 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 */ #endif /* _LINUX_RTC_H_ */ |