release/src/router/busybox/include/rtc_.h

   1 /*
   2  * Common defines/structures/etc... for applets that need to work with the RTC.
   3  *
   4  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
   5  */
   6
   7 #ifndef BB_RTC_H
   8 #define BB_RTC_H 1
   9
  10 #include "libbb.h"
  11
  12 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
  13
  14 int rtc_adjtime_is_utc(void) FAST_FUNC;
  15 int rtc_xopen(const char **default_rtc, int flags) FAST_FUNC;
  16 void rtc_read_tm(struct tm *ptm, int fd) FAST_FUNC;
  17 time_t rtc_tm2time(struct tm *ptm, int utc) FAST_FUNC;
  18
  19
  20 /*
  21  * Everything below this point has been copied from linux/rtc.h
  22  * to eliminate the kernel header dependency
  23  */
  24
  25 struct linux_rtc_time {
  26         int tm_sec;
  27         int tm_min;
  28         int tm_hour;
  29         int tm_mday;
  30         int tm_mon;
  31         int tm_year;
  32         int tm_wday;
  33         int tm_yday;
  34         int tm_isdst;
  35 };
  36
  37 struct linux_rtc_wkalrm {
  38         unsigned char enabled;  /* 0 = alarm disabled, 1 = alarm enabled */
  39         unsigned char pending;  /* 0 = alarm not pending, 1 = alarm pending */
  40         struct linux_rtc_time time;  /* time the alarm is set to */
  41 };
  42
  43 /*
  44  * ioctl calls that are permitted to the /dev/rtc interface, if
  45  * any of the RTC drivers are enabled.
  46  */
  47 #define RTC_AIE_ON      _IO('p', 0x01)  /* Alarm int. enable on         */
  48 #define RTC_AIE_OFF     _IO('p', 0x02)  /* ... off                      */
  49 #define RTC_UIE_ON      _IO('p', 0x03)  /* Update int. enable on        */
  50 #define RTC_UIE_OFF     _IO('p', 0x04)  /* ... off                      */
  51 #define RTC_PIE_ON      _IO('p', 0x05)  /* Periodic int. enable on      */
  52 #define RTC_PIE_OFF     _IO('p', 0x06)  /* ... off                      */
  53 #define RTC_WIE_ON      _IO('p', 0x0f)  /* Watchdog int. enable on      */
  54 #define RTC_WIE_OFF     _IO('p', 0x10)  /* ... off                      */
  55
  56 #define RTC_ALM_SET     _IOW('p', 0x07, struct linux_rtc_time) /* Set alarm time  */
  57 #define RTC_ALM_READ    _IOR('p', 0x08, struct linux_rtc_time) /* Read alarm time */
  58 #define RTC_RD_TIME     _IOR('p', 0x09, struct linux_rtc_time) /* Read RTC time   */
  59 #define RTC_SET_TIME    _IOW('p', 0x0a, struct linux_rtc_time) /* Set RTC time    */
  60 #define RTC_IRQP_READ   _IOR('p', 0x0b, unsigned long)   /* Read IRQ rate   */
  61 #define RTC_IRQP_SET    _IOW('p', 0x0c, unsigned long)   /* Set IRQ rate    */
  62 #define RTC_EPOCH_READ  _IOR('p', 0x0d, unsigned long)   /* Read epoch      */
  63 #define RTC_EPOCH_SET   _IOW('p', 0x0e, unsigned long)   /* Set epoch       */
  64
  65 #define RTC_WKALM_SET   _IOW('p', 0x0f, struct linux_rtc_wkalrm)/* Set wakeup alarm*/
  66 #define RTC_WKALM_RD    _IOR('p', 0x10, struct linux_rtc_wkalrm)/* Get wakeup alarm*/
  67
  68 /* interrupt flags */
  69 #define RTC_IRQF 0x80 /* any of the following is active */
  70 #define RTC_PF 0x40
  71 #define RTC_AF 0x20
  72 #define RTC_UF 0x10
  73
  74 POP_SAVED_FUNCTION_VISIBILITY
  75
  76 #endif