ptp: add ptp virtual clock driver framework

[platform/kernel/linux-starfive.git] / drivers / ptp / ptp_private.h

diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
index 6b97155..853b79b 100644 (file)
--- 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