Philip Chen 72ea08f9db rtc: Add functions and tests for time conversion
To implement rtc driver for some ec chips, we
need to convert between calandar date and seconds
(since epoch time, 01-01-1970 00:00:00).

Sicne these functions are HW-independent, let's add
common/rtc.c, include/rtc.h, and unit test for this.

BUG=b:63908519
BRANCH=none
TEST=make buildall test -j

Change-Id: Icb1e768d2b3674d5225b83e09475e984eb104d06
Signed-off-by: Philip Chen <philipchen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/666985
Commit-Ready: Philip Chen <philipchen@chromium.org>
Tested-by: Philip Chen <philipchen@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
2017-09-26 18:24:07 -07:00
2017-08-07 19:29:13 -07:00
2017-09-27 00:51:09 +00:00
2017-09-07 15:01:05 -07:00
2017-07-08 20:38:53 -07:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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