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17 changes: 7 additions & 10 deletions src/ophyd_async/epics/eiger/_odin_io.py
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
SignalR,
StrictEnum,
observe_value,
set_and_wait_for_other_value,
set_and_wait_for_value,
wait_for_value,
)
Expand Down Expand Up @@ -53,7 +52,7 @@ def __init__(self, prefix: str, name: str = "") -> None:

self.capture = epics_signal_rw(Writing, f"{prefix}Capture")
self.capture_rbv = epics_signal_r(str, prefix + "Capture_RBV")
self.num_captured = epics_signal_r(int, f"{prefix}NumCapture_RBV")
self.num_captured = epics_signal_r(int, f"{prefix}NumCaptured_RBV")
self.num_to_capture = epics_signal_rw_rbv(int, f"{prefix}NumCapture")

self.start_timeout = epics_signal_rw(str, f"{prefix}StartTimeout")
Expand Down Expand Up @@ -102,16 +101,14 @@ async def open(self, name: str, exposures_per_event: int = 1) -> dict[str, DataK

await wait_for_value(self._drv.meta_active, "Active", timeout=DEFAULT_TIMEOUT)

await set_and_wait_for_other_value(
self._drv.capture,
Writing.CAPTURE,
self._drv.capture_rbv,
"Capturing",
set_timeout=None,
wait_for_set_completion=False,
await self._drv.capture.set(
Writing.CAPTURE, wait=False
) # TODO: Investigate why we do not get a put callback when setting capture pv https://github.com/bluesky/ophyd-async/issues/866

await wait_for_value(self._drv.meta_writing, "Writing", timeout=DEFAULT_TIMEOUT)
await asyncio.gather(
wait_for_value(self._drv.capture_rbv, "Capturing", timeout=DEFAULT_TIMEOUT),
wait_for_value(self._drv.meta_writing, "Writing", timeout=DEFAULT_TIMEOUT),
)

return await self._describe()

Expand Down
1 change: 1 addition & 0 deletions src/ophyd_async/fastcs/eiger/_eiger_io.py
Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ class EigerDetectorIO(Device):
omega_increment: SignalRW[float]
arm: SignalX
disarm: SignalX
trigger: SignalX


class EigerDriverIO(Device):
Expand Down
17 changes: 5 additions & 12 deletions tests/epics/eiger/test_odin_io.py
Original file line number Diff line number Diff line change
Expand Up @@ -88,31 +88,24 @@ async def test_when_closed_then_data_capture_turned_off(

@pytest.mark.asyncio
@patch("ophyd_async.epics.eiger._odin_io.wait_for_value")
@patch("ophyd_async.epics.eiger._odin_io.set_and_wait_for_other_value")
async def test_wait_for_active_before_capture_then_wait_for_writing(
mock_set_and_wait_for_other_value,
mock_wait_for_value,
odin_driver_and_writer,
):
driver, writer = odin_driver_and_writer
writer._drv.capture.set = AsyncMock()

mock_manager = AsyncMock()
mock_manager.attach_mock(mock_wait_for_value, "mock_wait_for_value")
mock_manager.attach_mock(
mock_set_and_wait_for_other_value, "mock_set_and_wait_for_other_value"
)
mock_manager.attach_mock(writer._drv.capture.set, "mock_capture_set")

await writer.open(ODIN_DETECTOR_NAME)

expected_calls = [
call.mock_wait_for_value(driver.meta_active, "Active", timeout=DEFAULT_TIMEOUT),
call.mock_set_and_wait_for_other_value(
driver.capture,
Writing.CAPTURE,
driver.capture_rbv,
"Capturing",
set_timeout=None,
wait_for_set_completion=False,
call.mock_capture_set(Writing.CAPTURE, wait=False),
call.mock_wait_for_value(
driver.capture_rbv, "Capturing", timeout=DEFAULT_TIMEOUT
),
call.mock_wait_for_value(
driver.meta_writing, "Writing", timeout=DEFAULT_TIMEOUT
Expand Down
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