diff options
Diffstat (limited to 'drivers/staging/greybus/timesync.h')
| -rw-r--r-- | drivers/staging/greybus/timesync.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/staging/greybus/timesync.h b/drivers/staging/greybus/timesync.h new file mode 100644 index 000000000000..72fc9a35a002 --- /dev/null +++ b/drivers/staging/greybus/timesync.h @@ -0,0 +1,45 @@ +/* + * TimeSync API driver. + * + * Copyright 2016 Google Inc. + * Copyright 2016 Linaro Ltd. + * + * Released under the GPLv2 only. + */ + +#ifndef __TIMESYNC_H +#define __TIMESYNC_H + +struct gb_svc; +struct gb_interface; +struct gb_timesync_svc; + +/* Platform */ +u64 gb_timesync_platform_get_counter(void); +u32 gb_timesync_platform_get_clock_rate(void); +int gb_timesync_platform_lock_bus(struct gb_timesync_svc *pdata); +void gb_timesync_platform_unlock_bus(void); + +int gb_timesync_platform_init(void); +void gb_timesync_platform_exit(void); + +/* Core API */ +int gb_timesync_interface_add(struct gb_interface *interface); +void gb_timesync_interface_remove(struct gb_interface *interface); +int gb_timesync_svc_add(struct gb_svc *svc); +void gb_timesync_svc_remove(struct gb_svc *svc); + +u64 gb_timesync_get_frame_time_by_interface(struct gb_interface *interface); +u64 gb_timesync_get_frame_time_by_svc(struct gb_svc *svc); +int gb_timesync_to_timespec_by_svc(struct gb_svc *svc, u64 frame_time, + struct timespec *ts); +int gb_timesync_to_timespec_by_interface(struct gb_interface *interface, + u64 frame_time, struct timespec *ts); + +int gb_timesync_schedule_synchronous(struct gb_interface *intf); +void gb_timesync_schedule_asynchronous(struct gb_interface *intf); +void gb_timesync_irq(struct gb_timesync_svc *timesync_svc); +int gb_timesync_init(void); +void gb_timesync_exit(void); + +#endif /* __TIMESYNC_H */ |