Last change
on this file was 679, checked in by David Azarewicz, 4 years ago |
Merge changes from Paul's uniaud32next branch.
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File size:
788 bytes
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[615] | 1 | #ifndef _LINUX_TIMEKEEPING_H
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| 2 | #define _LINUX_TIMEKEEPING_H
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| 3 |
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| 4 | #include <linux/errno.h>
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| 5 |
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| 6 | /*
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| 7 | * struct system_device_crosststamp - system/device cross-timestamp
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| 8 | * (syncronized capture)
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| 9 | * @device: Device time
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| 10 | * @sys_realtime: Realtime simultaneous with device time
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| 11 | * @sys_monoraw: Monotonic raw simultaneous with device time
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| 12 | */
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| 13 | struct system_device_crosststamp {
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| 14 | ktime_t device;
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| 15 | ktime_t sys_realtime;
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| 16 | ktime_t sys_monoraw;
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| 17 | };
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| 18 |
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| 19 | /*
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| 20 | * Get cross timestamp between system clock and device clock
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| 21 | */
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| 22 | extern int get_device_system_crosststamp(
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| 23 | int (*get_time_fn)(ktime_t *device_time,
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| 24 | struct system_counterval_t *system_counterval,
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| 25 | void *ctx),
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| 26 | void *ctx,
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| 27 | struct system_time_snapshot *history,
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| 28 | struct system_device_crosststamp *xtstamp);
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| 29 | #endif
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