diff options
| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-06-30 11:11:52 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-01 23:08:18 +0300 |
| commit | 5d43f951b1ac797450bb4d230fdc960b739bea04 (patch) | |
| tree | 7e4ef8c7ca741fecd668e94f122543f34284ca61 /drivers/ptp/ptp_private.h | |
| parent | 88827353c696defc40de7a5cdae5a5a084598fe2 (diff) | |
| download | linux-5d43f951b1ac797450bb4d230fdc960b739bea04.tar.xz | |
ptp: add ptp virtual clock driver framework
This patch is to add ptp virtual clock driver framework
utilizing timecounter/cyclecounter.
The patch just exports two essential APIs for PTP driver.
- ptp_vclock_register()
- ptp_vclock_unregister()
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ptp/ptp_private.h')
| -rw-r--r-- | drivers/ptp/ptp_private.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h index 6b97155148f1..853b79b6b30e 100644 --- a/drivers/ptp/ptp_private.h +++ b/drivers/ptp/ptp_private.h @@ -48,6 +48,19 @@ struct ptp_clock { struct kthread_delayed_work aux_work; }; +#define info_to_vclock(d) container_of((d), struct ptp_vclock, info) +#define cc_to_vclock(d) container_of((d), struct ptp_vclock, cc) +#define dw_to_vclock(d) container_of((d), struct ptp_vclock, refresh_work) + +struct ptp_vclock { + struct ptp_clock *pclock; + struct ptp_clock_info info; + struct ptp_clock *clock; + struct cyclecounter cc; + struct timecounter tc; + spinlock_t lock; /* protects tc/cc */ +}; + /* * The function queue_cnt() is safe for readers to call without * holding q->lock. Readers use this function to verify that the queue @@ -89,4 +102,6 @@ extern const struct attribute_group *ptp_groups[]; int ptp_populate_pin_groups(struct ptp_clock *ptp); void ptp_cleanup_pin_groups(struct ptp_clock *ptp); +struct ptp_vclock *ptp_vclock_register(struct ptp_clock *pclock); +void ptp_vclock_unregister(struct ptp_vclock *vclock); #endif |