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authorThomas Gleixner <tglx@linutronix.de>2014-07-16 21:04:02 +0000
committerJohn Stultz <john.stultz@linaro.org>2014-07-23 10:17:54 -0700
commit8b094cd03b4a3793220d8d8d86a173bfea8c285b (patch)
treefd0e63d38403f4413fa39095e1eff99f7b23d36c /include/linux/timekeeping.h
parent7d489d15ce4be5310ca60e5896df833f9b3b4088 (diff)
downloadlinux-linaro-stable-8b094cd03b4a3793220d8d8d86a173bfea8c285b.tar.gz
time: Consolidate the time accessor prototypes
Right now we have time related prototypes in 3 different header files. Move it to a single timekeeping header file and move the core internal stuff into a core private header. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'include/linux/timekeeping.h')
-rw-r--r--include/linux/timekeeping.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
new file mode 100644
index 000000000000..e81c35b71da7
--- /dev/null
+++ b/include/linux/timekeeping.h
@@ -0,0 +1,78 @@
+#ifndef _LINUX_TIMEKEEPING_H
+#define _LINUX_TIMEKEEPING_H
+
+/* Included from linux/ktime.h */
+
+void timekeeping_init(void);
+extern int timekeeping_suspended;
+
+/*
+ * Get and set timeofday
+ */
+extern void do_gettimeofday(struct timeval *tv);
+extern int do_settimeofday(const struct timespec *tv);
+extern int do_sys_settimeofday(const struct timespec *tv,
+ const struct timezone *tz);
+
+/*
+ * Kernel time accessors
+ */
+unsigned long get_seconds(void);
+struct timespec current_kernel_time(void);
+/* does not take xtime_lock */
+struct timespec __current_kernel_time(void);
+
+/*
+ * timespec based interfaces
+ */
+struct timespec get_monotonic_coarse(void);
+extern void getrawmonotonic(struct timespec *ts);
+extern void monotonic_to_bootbased(struct timespec *ts);
+extern void get_monotonic_boottime(struct timespec *ts);
+extern void ktime_get_ts(struct timespec *ts);
+
+extern int __getnstimeofday(struct timespec *tv);
+extern void getnstimeofday(struct timespec *tv);
+extern void getboottime(struct timespec *ts);
+
+#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
+#define ktime_get_real_ts(ts) getnstimeofday(ts)
+
+
+/*
+ * ktime_t based interfaces
+ */
+extern ktime_t ktime_get(void);
+extern ktime_t ktime_get_real(void);
+extern ktime_t ktime_get_boottime(void);
+extern ktime_t ktime_get_monotonic_offset(void);
+extern ktime_t ktime_get_clocktai(void);
+
+/*
+ * RTC specific
+ */
+extern void timekeeping_inject_sleeptime(struct timespec *delta);
+
+/*
+ * PPS accessor
+ */
+extern void getnstime_raw_and_real(struct timespec *ts_raw,
+ struct timespec *ts_real);
+
+/*
+ * Persistent clock related interfaces
+ */
+extern bool persistent_clock_exist;
+extern int persistent_clock_is_local;
+
+static inline bool has_persistent_clock(void)
+{
+ return persistent_clock_exist;
+}
+
+extern void read_persistent_clock(struct timespec *ts);
+extern void read_boot_clock(struct timespec *ts);
+extern int update_persistent_clock(struct timespec now);
+
+
+#endif