We ignored assertions happening on callbacks as they only raise
exceptions that does not stop the execution.
So ensure that this is happening in all the tests as synaptics was
doing already
When opening the device, query the stored prints. This should usually
always succeed (and it should be fast). If it fails, then we are very
likely dealing with a corrupted template storage on the device. In that
case, emit the command to clear the storage in order to reset the device
and get it back into a usable state.
The internal storage of this device can get messed up by other operating
systems, so it's handy to be able to clear it.
I'm not 100% sure whether the commands I've sent to the device are
exactly what is supposed to be used (just a guess), but it did seem to
work, and it even fixed another issue I had.
While useful, there are advantages for this to be done by the
surrounding code (i.e. fprintd). As such, remove the identify stage from
the goodix driver and rely on fprintd doing it for us.
One can probably argue that neither solution is perfect. Ideally, we
would probably return the information required to delete the old print
to the upper stack and let the driver/device handle the duplicate
checking.
However, for now this works well. We may need to reconsider this if we
get devices that do the duplicate checking transparently and just throw
an enroll error.
NOTE: The driver did not report any progress for the identify step. As
such, the number of enroll steps reported by the device remain the same.
Closes: #415
It can be convenient for device users to check what it supports, without
having multiple functions to check each single feature.
So expose this and add tests.
Some OEM will integrate fingerprint device with powerButton. It's
possible that a user may press the power button during fingerprint
enroll or identify. This would lead to unintended PC shutdown or
hibernation. We add pwr_btn_shield cmd and related process to shield
the power button function when the fingerprint functionality (enroll and
identify) is used and restore power button function afterwards.
there is no specific API for report finger status,
finger needed status is set when captrue sample cmd send, once cmd receive correct,
finger is pressing on sensor.
