This changes the cancellation logic a bit to ensure we always deactivate
the device (equivalent to the AWAIT_OFF state in the driver). All
commands except for the deactivation command should be cancelled when an
operation is stopped, this is to ensure that the LED is turned off at
the end of an operation.
If users put their finger on the sensor between the bulge and
"un-bulge" area first and then swipe, the captured image would
be bad.
Skipping more frames can reduce the impact, so bump
ELAN_SKIP_LAST_FRAMES to 2.
There has been a report that a 0x0c03 was installed straight (other
readers so far have produced images that are 90 degrees rotated). There
is no way for the dirver to know how a device is installed, so for now just
make an exception.
Sensor reset code has been removed because it is not needed during normal
operation.
Calibration and frame processing logic has been improved according to
recommendations from Elantech.
Make each command a separate struct to get finer control over which
commands are called on which devices. Update ssm's accordingly. Add
sensor_reset and fuse_load commands.
Support 0x0903, 0x0c03, 0x0c16, 0x0c1a, 0x0c26
