2 Commits

Author	SHA1	Message	Date
Alexandru M Stan	b317d2d65d	sensors: Make sync driver more robust ... Use a queue now for sync events, this will allow multiple interrupts to be called before the motion sense task executes. The events (including timestamps) get stored in a small queue. 8 events for the queue size should be plenty, most applications will have latency concerns anyway once we get a couple of queued up events. Also changed the init function to be a little bit more robust to race conditions. Added count argument to the "sync" simulation command to test the queue behavior. BRANCH=master BUG=b:73551961, b:67743747 TEST="sync 4" yields 4 events on the AP, whereas before it would only give the AP the last event. Change-Id: I9fcb1fb8b35eb5f8ffcc21afbfcb0f0d9bc33804 Signed-off-by: Alexandru M Stan <amstan@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/1065149 Reviewed-by: Gwendal Grignou <gwendal@chromium.org>	2018-05-30 01:02:37 -07:00
Alexandru M Stan	4a1d2e3daf	sensors: Add driver for SYNC ... Useful for recording the exact time a gpio interrupt happened in the context of sensors. Adding it for camera vsync purposes. BUG=b:67743747 TEST=With next patch see it work on scarlet. BRANCH=master Change-Id: Ic8e8fb444e08200e5d8daded8b4a5920b13431ac Signed-off-by: Alexandru M Stan <amstan@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/850580 Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org>	2018-03-14 04:06:53 -07:00