kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ptp: add kernel API ptp_convert_timestamp()

Browse source 
Add kernel API ptp_convert_timestamp() to convert raw hardware timestamp
to a specified ptp vclock time.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yangbo Lu 2021-06-30 16:11:57 +08:00 • committed by David S. Miller
parent c156174a67
commit 895487a3a1
2 changed files with 47 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

13
include/linux/ptp_clock_kernel.h
View file

@ -12,6 +12,7 @@
#include <linux/pps_kernel.h>
#include <linux/ptp_clock.h>
#include <linux/timecounter.h>
#include <linux/skbuff.h>
#define PTP_CLOCK_NAME_LEN 32
/**
@ -318,6 +319,15 @@ void ptp_cancel_worker_sync(struct ptp_clock *ptp);
*/
int ptp_get_vclocks_index(int pclock_index, int **vclock_index);
/**
* ptp_convert_timestamp() - convert timestamp to a ptp vclock time
*
* @hwtstamps: skb_shared_hwtstamps structure pointer
* @vclock_index: phc index of ptp vclock.
*/
void ptp_convert_timestamp(struct skb_shared_hwtstamps *hwtstamps,
int vclock_index);
#else
static inline struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
struct device *parent)
@ -339,6 +349,9 @@ static inline void ptp_cancel_worker_sync(struct ptp_clock *ptp)
{ }
static inline int ptp_get_vclocks_index(int pclock_index, int **vclock_index)
{ return 0; }
static inline void ptp_convert_timestamp(struct skb_shared_hwtstamps *hwtstamps,
int vclock_index)
{ }
#endif