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hwclock: refactor processing of PHC readings

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Move processing of PHC readings from sys_linux to hwclock, where
statistics can be collected and filtering improved.

In the PHC refclock driver accumulate the samples even if not in the
external timestamping mode to update the context which will be needed
for improved filtering.
This commit is contained in:
Miroslav Lichvar
2022-06-07 15:03:14 +02:00
parent c23c0b8484
commit 09b7f77f9a
7 changed files with 141 additions and 107 deletions
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4
sys_linux.h
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@@ -41,8 +41,8 @@ extern int SYS_Linux_CheckKernelVersion(int req_major, int req_minor);
extern int SYS_Linux_OpenPHC(const char *path, int phc_index);
extern int SYS_Linux_GetPHCSample(int fd, int nocrossts, double precision, int *reading_mode,
struct timespec *phc_ts, struct timespec *sys_ts, double *err);
extern int SYS_Linux_GetPHCReadings(int fd, int nocrossts, int *reading_mode, int max_readings,
struct timespec tss[][3]);
extern int SYS_Linux_SetPHCExtTimestamping(int fd, int pin, int channel,
int rising, int falling, int enable);