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msm: camera: isp: Reduce traffic for shutter notification

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To reduce traffic for shutter notification, sof and boot
sof timestamps are sent in a unified v4l2 event.
Thereby, reducing the event notification traffic by 50%.

CRs-Fixed: 3040374
Change-Id: Ib4580e0a4df7c3d1cb892fdf3254272d3134d4cb
Signed-off-by: Pranav Sanwal <psanwal@codeaurora.org>
This commit is contained in:
Pranav Sanwal
2021-09-02 19:08:30 +05:30
parent a6d54a3219
commit 0ddfe2d482
5 changed files with 88 additions and 0 deletions
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35
include/uapi/camera/media/cam_req_mgr.h
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@@ -57,6 +57,7 @@
#define V4L_EVENT_CAM_REQ_MGR_SOF_BOOT_TS 2
#define V4L_EVENT_CAM_REQ_MGR_CUSTOM_EVT 3
#define V4L_EVENT_CAM_REQ_MGR_NODE_EVENT 4
#define V4L_EVENT_CAM_REQ_MGR_SOF_UNIFIED_TS 5
/* SOF Event status */
#define CAM_REQ_MGR_SOF_EVENT_SUCCESS 0
@@ -507,6 +508,39 @@ struct cam_req_mgr_frame_msg {
__u32 reserved;
};
/**
* enum cam_req_msg_timestamp_type - Identifies index of timestamps
*
* @CAM_REQ_SOF_QTIMER_TIMESTAMP: SOF qtimer timestamp
* @CAM_REQ_BOOT_TIMESTAMP: SOF boot timestamp
* @CAM_REQ_TIMESTAMP_TYPE: Max enum index for timestamp type
*
*/
enum cam_req_msg_timestamp_type {
CAM_REQ_SOF_QTIMER_TIMESTAMP = 0,
CAM_REQ_BOOT_TIMESTAMP,
CAM_REQ_TIMESTAMP_MAX
};
/**
* struct cam_req_mgr_frame_msg
* @request_id: request id of the frame
* @frame_id: frame id of the frame
* @timestamps: array for all the supported timestamps
* @link_hdl: link handle associated with this message
* @frame_id_meta: refers to the meta for
* that frame in specific usecases
* @reserved: reserved for future addtions and max size for structure can be 64 bytes
*/
struct cam_req_mgr_frame_msg_v2 {
__u64 request_id;
__u64 frame_id;
__u64 timestamps[CAM_REQ_TIMESTAMP_MAX];
__s32 link_hdl;
__u32 frame_id_meta;
__u32 reserved[4];
};
/**
* struct cam_req_mgr_custom_msg
* @custom_type: custom type
@@ -573,6 +607,7 @@ struct cam_req_mgr_message {
union {
struct cam_req_mgr_error_msg err_msg;
struct cam_req_mgr_frame_msg frame_msg;
struct cam_req_mgr_frame_msg_v2 frame_msg_v2;
struct cam_req_mgr_custom_msg custom_msg;
struct cam_req_mgr_node_msg node_msg;
} u;