Devn Lu 93be0c3b0a ectool: Support keyboard factory scanning ...

This is keyboard test mechanism request for "multiple key press test",
we can thru the testing to scan out kso ksi pins shortting or keyboard has
multiple key pressing, below was the testing steps:

1. Turn off internal keyboard scan function.
2. Set all scan & sense pins to input and internal push up.
3. Set start one pin to output low.
4. check other pins status if any sense low level.
5. repeat step 3~4 for all keyboard KSO/KSI pins.
6. Turn on internal keyboard scan function.

BUG=chrome-os-partner:49235
BRANCH=ToT
TEST=manual
  Short any KSO or KSI pins and excute "ectool kbfactorytest", it shows failed.
  if no pins short together, it shows passed.

Change-Id: Id2c4310d45e892aebc6d2c0795db22eba5a30641
Signed-off-by: Devin Lu <Devin.Lu@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/332322
Reviewed-by: Shawn N <shawnn@chromium.org>

2016-04-01 00:21:35 -07:00

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