hisilicon-opensdk: bump 7fa06b2 → 28a30ca (frame-ts FEND extension)#2126
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Picks up openhisilicon PR #178 (openhisilicon/issues/176, /177): - ISP_FEND second event source on /dev/openipc-frame-ts alongside MIPI_FS; pairing both gives sensor readout duration directly. ABI extended (event_type field, OPENIPC_FT_IOC_SET_EVENT_MASK ioctl). - Edge-detect on the level-held raw vsync / FEND bits in ISP_ISR and mipi_rx_interrupt_route (V4 + cv500) — fixes a previously-shipped cherry-pick that fired zero FEND events on real silicon. - Per-channel ring 64 → 256 (≈ 0.5 s buffer at 480 Hz of FS+FEND). - Split "dropped" counter: dropped = ring overflow (data loss), coalesced = dedupe rejects (expected). New GET_COALESCED ioctl. End-user impact: with this bump, smolrtsp / majestic (widgetii/majestic PR #83 already shipping) can issue NTP-anchored RTCP Sender Reports correctly across the whole HiSi V4 + cv500 lineup. FEND consumers (ROS fusion, latency telemetry) can also start computing per-frame sensor readout duration without an external probe. Validated empirically on ev300 (V4, IMX335) and av300 (cv500, IMX415) across the full sensor mode lineup — zero drops 21–240 fps, clean readout times scaling linearly with active row count (IMX335 4.4 ms at 480 rows up to 28.4 ms at 1944 rows; IMX415 31.5 ms at 4M).
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Summary
Picks up OpenIPC/openhisilicon#178 (closes openhisilicon#176, openhisilicon#177):
/dev/openipc-frame-tsalongsideMIPI_FS. Pairing both events frame-by-frame gives sensor readout duration directly (wall_ns[FEND] − wall_ns[FS]).event_typefield instruct openipc_frame_ts_event, newOPENIPC_FT_IOC_SET_EVENT_MASKandOPENIPC_FT_IOC_GET_COALESCEDioctls.ISP_ISRandmipi_rx_interrupt_route(V4 + cv500) — fixes a previously-shipped cherry-pick that fired zero FEND events on real silicon.droppedcounter intodropped(ring overflow → data loss) andcoalesced(dedupe rejects → expected at high IRQ rates). NewGET_COALESCEDioctl.End-user impact
With this bump, widgetii/majestic#83 (already merged) can correctly anchor RTCP Sender Reports to wall-clock time across the HiSilicon V4 + cv500 lineup — RTSP clients see NTP-anchored timestamps instead of pipeline-relative ones (correct multi-camera sync, correct seek in recordings).
FEND consumers (ROS 2 multi-sensor fusion, PixelPilot-style per-segment latency telemetry, evidence chains) can also compute per-frame sensor readout duration without an external probe.
Test plan
samples/openipc_frame_ts/.🤖 Generated with Claude Code