Louis Yung-Chieh Lo 763af1f695 Handle ghost key in matrix scanner.
implement actual_key_masks[]. A ghost key exists if two columns share
more than one row (after ANDed actual_key_masks[]).

BUG=chrome-os-partner:7485
TEST=on bds. test cases:
  single press of all keys.
  ~ 1 4 5: later 2 keys should be ignored (ghost).
  h j k: all keys should work.
  u R-shift 0 P: p should be ignored (ghost).
  i R-shift ' p: P should show up.

Change-Id: I1ac105874a5327e839a5240ccbdd6304637ad404
2012-03-02 11:29:06 +08:00
2012-02-28 16:51:54 -08:00
2012-03-02 11:29:06 +08:00
2012-02-29 14:42:45 -08:00
2012-02-02 22:02:06 +00:00
2012-02-29 14:42:45 -08:00
2012-02-14 11:46:16 -08:00
2012-02-16 00:53:22 +00:00
2011-12-08 19:18:06 +00:00
2011-10-20 15:15:01 +08:00

- EC Lib

This wraps Blizzard driverlib and implements the EC chip interface defined
by Google. See below diagram for architecture.


  +--------------------+
  |   Host BIOS/OS     |
  +--------------------+

 ---- host interface ----

  +--------------------+
  | Google EC features |
  +--------------------+

 ---- chip interface ----  The interface is defined in
                           src/platform/ec/chip_interface/*.
  +--------------------+   But the real implementation is in EC Lib.
  |       EC Lib       |
  +--------------------+
  | Blizzard low level |
  |   driver, the      |
  |   driverlib.       |
  +--------------------+

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