Vadim Bendebury 885c02a92d cr50: usb_updater: do not send setup request unless necessary
There are only two usb_updater actions which require establishing a
connection with the Cr50: transferring the firmware image during
update and reporting the version of the running image (because the
version is reported when the connection is established).

This patch refactors usb_updater code to establish the connection only
when necessary.

BRANCH=cr50
BUG=b:35587387,b:35587053
TEST=verified that 'usb_updater -c' succeeds both issued over USB and
      TPM

Change-Id: I6a0c82eb440c092263d4802f124f458f148a8ab5
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/525095
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
2017-06-06 17:09:28 -07:00
2017-06-06 17:09:27 -07:00
2016-11-10 21:28:33 -08:00
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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