diff options
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/v4l2-subdev.h | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index ca32ee96d46f..842706ff0b61 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -830,7 +830,9 @@ struct v4l2_subdev_state { * possible configuration from the remote end, likely calling * this operation as close as possible to stream on time. The * operation shall fail if the pad index it has been called on - * is not valid or in case of unrecoverable failures. + * is not valid or in case of unrecoverable failures. The + * config argument has been memset to 0 just before calling + * the op. * * @set_routing: enable or disable data connection routes described in the * subdevice routing table. @@ -1046,10 +1048,11 @@ struct v4l2_subdev_platform_data { * @active_state: Active state for the subdev (NULL for subdevs tracking the * state internally). Initialized by calling * v4l2_subdev_init_finalize(). - * @enabled_streams: Bitmask of enabled streams used by - * v4l2_subdev_enable_streams() and - * v4l2_subdev_disable_streams() helper functions for fallback - * cases. + * @enabled_pads: Bitmask of enabled pads used by v4l2_subdev_enable_streams() + * and v4l2_subdev_disable_streams() helper functions for + * fallback cases. + * @s_stream_enabled: Tracks whether streaming has been enabled with s_stream. + * This is only for call_s_stream() internal use. * * Each instance of a subdev driver should create this struct, either * stand-alone or embedded in a larger struct. @@ -1097,7 +1100,8 @@ struct v4l2_subdev { * doesn't support it. */ struct v4l2_subdev_state *active_state; - u64 enabled_streams; + u64 enabled_pads; + bool s_stream_enabled; }; @@ -1924,4 +1928,17 @@ extern const struct v4l2_subdev_ops v4l2_subdev_call_wrappers; void v4l2_subdev_notify_event(struct v4l2_subdev *sd, const struct v4l2_event *ev); +/** + * v4l2_subdev_is_streaming() - Returns if the subdevice is streaming + * @sd: The subdevice + * + * v4l2_subdev_is_streaming() tells if the subdevice is currently streaming. + * "Streaming" here means whether .s_stream() or .enable_streams() has been + * successfully called, and the streaming has not yet been disabled. + * + * If the subdevice implements .enable_streams() this function must be called + * while holding the active state lock. + */ +bool v4l2_subdev_is_streaming(struct v4l2_subdev *sd); + #endif /* _V4L2_SUBDEV_H */ |