Add saxs and waxs Pilatus detectors to i22 beamline

- Adds DLS standard constructor for ophyd-async Pilatus implementation

src/dodal/beamlines/i22.py

@@ -1,5 +1,8 @@
+from ophyd_async.epics.areadetector import PilatusDetector
+
 from dodal.beamlines.beamline_utils import device_instantiation, get_directory_provider
 from dodal.beamlines.beamline_utils import set_beamline as set_utils_beamline
+from dodal.devices.areadetector.pilatus import DLSPilatus
 from dodal.devices.tetramm import TetrammDetector
 from dodal.log import set_beamline as set_log_beamline
 from dodal.utils import get_beamline_name
@@ -35,3 +38,29 @@ def it(
         fake_with_ophyd_sim,
         directory_provider=get_directory_provider(),
     )
+
+
+def saxs(
+    wait_for_connection: bool = True, fake_with_ophyd_sim: bool = False
+) -> PilatusDetector:
+    return device_instantiation(
+        DLSPilatus,
+        "saxs",
+        "-EA-PILAT-01:",
+        wait_for_connection,
+        fake_with_ophyd_sim,
+        directory_provider=get_directory_provider(),
+    )
+
+
+def waxs(
+    wait_for_connection: bool = True, fake_with_ophyd_sim: bool = False
+) -> PilatusDetector:
+    return device_instantiation(
+        DLSPilatus,
+        "waxs",
+        "-EA-PILAT-03:",
+        wait_for_connection,
+        fake_with_ophyd_sim,
+        directory_provider=get_directory_provider(),
+    )

src/dodal/devices/areadetector/pilatus.py

@@ -0,0 +1,13 @@
+from ophyd_async.core import DirectoryProvider
+from ophyd_async.epics.areadetector import PilatusDetector
+from ophyd_async.epics.areadetector.drivers import PilatusDriver
+from ophyd_async.epics.areadetector.writers import NDFileHDF
+
+
+def DLSPilatus(prefix: str, name: str, directory_provider: DirectoryProvider) -> PilatusDetector:
+    return PilatusDetector(
+        name=name,
+        directory_provider=directory_provider,
+        driver=PilatusDriver(prefix + "DRV:"),
+        hdf=NDFileHDF(prefix + "HDF:"),
+    )