--- cpukit/include/rtems/score/timecounter.h | 17 +++++++++++++++++ cpukit/include/sys/timepps.h | 3 +++ 2 files changed, 20 insertions(+)
diff --git a/cpukit/include/rtems/score/timecounter.h b/cpukit/include/rtems/score/timecounter.h index fdade06128..95e0839cff 100644 --- a/cpukit/include/rtems/score/timecounter.h +++ b/cpukit/include/rtems/score/timecounter.h @@ -300,6 +300,23 @@ void _Timecounter_NTP_update_second(int64_t *adjustment, time_t *newsec); */ uint64_t _Timecounter_Get_frequency(void); +/** + * @brief Updates the timecounter frequency adjustment used by + * _Timecounter_Set_NTP_update_second(). + * + * This function is part of the time synchronization using a PPS + * (Pulse Per Second) signal. + * + * When an event (a rising or falling edge of the PPS signal) occurs, the + * functions pps_capture() and pps_event() are executed. Only if the kernel + * consumer is configured to be PPS_KC_HARDPPS, the timecounter is disciplined. + * + * @param[in] tsp is the time at PPS event + * + * @param[i] nsec is the time in nanoseconds from the last PPS event + */ +void _Timecounter_Discipline(struct timespec *tsp, long nsec); + /** @} */ #ifdef __cplusplus diff --git a/cpukit/include/sys/timepps.h b/cpukit/include/sys/timepps.h index 56c1cc43ca..0eb4246a39 100644 --- a/cpukit/include/sys/timepps.h +++ b/cpukit/include/sys/timepps.h @@ -27,6 +27,7 @@ #ifdef __rtems__ #include <rtems/score/atomic.h> #define PPS_SYNC +#define hardpps _Timecounter_Discipline #endif /* __rtems__ */ #define PPS_API_VERS_1 1 @@ -200,7 +201,9 @@ void pps_event(struct pps_state *pps, int event); void pps_init(struct pps_state *pps); void pps_init_abi(struct pps_state *pps); int pps_ioctl(unsigned long cmd, caddr_t data, struct pps_state *pps); +#ifndef __rtems__ void hardpps(struct timespec *tsp, long nsec); +#endif /* __rtems__ */ #else /* !_KERNEL */ -- 2.25.1 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
