This adds support for monitoring the GPS-DO that is built-in to the
icE1usb device. It assumes a very recent firmware with GPS-DO control
moved to a separate USB interface, i.e. after osmo-e1-hardware.git
Change-Id Icd6555a14896c38626fb147b78af44ff719f2254 is merged.
Change-Id: If5e2a6b2dae0290ce3186009e68f618049ebf5ff
In osmo-e1-hardware.git Change-Id Ic4f57cf79bd32cf75f81ef3073cb8d4a2d1857d8
we added support for passing RAI (remote alarm indication) as a flag via
the USB interrupt messages; let's add support for this here.
osmo-e1d already internally parses TS0 to determine the same
information, and we have to keep this for backwards-compatibility with
older firmware builds. But maybe at some future point we can remove
our own TS0 scanning code here and rely on the USB device to inform
us about remote alarms.
Change-Id: Ie1994968e792c37f9272b9854547db95a41cab5b