Data from the sensor (in Pa) does not fit in 16 bits.
Add set_range/get_range to allow the AP to set the precision.
For pressure around ~1000 hPa, we need to right shift by 2 bits.
BUG=chrome-os-partner:57117
BRANCH=reef
TEST=Check data is not truncated anymore:
> accelrange 4
Range for sensor 4: 262144 (Pa ~= 2621 hPa)
> accelread 4
Current data 4: 24030 0 0
Last calib. data 4: 24030 0 0 (x4 = 961.2 hPa)
Change-Id: I3f7280336e5120d903116612c9c830f4150d2ed7
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/382323
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
60fc54854c