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Vincent Palatin 668fd373ca pd: refactor disconnection detection 
Verify the connection status at every FSM loop,
by monitoring VBUS presence for the sink and by monitoring CC going
above Vnc for the source.

Also ensure we are never stuck in the source transition state in the
sink doesn't ack the PSReady packet.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=none
TEST=connect Firefly to Zinger, trigger hundreds of voltage transition,
record and analyze the PD traffic : no longer see spurious PSReady
messages.

Change-Id: I4495ae5415d53d77055fb2a562c594fa9a1d4dc8
Reviewed-on: https://chromium-review.googlesource.com/206945
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Tested-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
2014-07-08 21:29:46 +00:00
board
firefly: add VBUS detection
2014-07-08 19:30:36 +00:00
chip
stm32 spi: postpone the RX DMA setup if handler is still using buffer.
2014-07-08 04:28:40 +00:00
common
pd: refactor disconnection detection
2014-07-08 21:29:46 +00:00
core
better unhandled exception panic without runtime
2014-07-03 02:56:52 +00:00
driver
cprints: Revert some changes from CPRINTF to CPRINTS
2014-07-03 02:52:35 +00:00
extra
Tweaks to lightbar simulation
2014-06-05 23:14:34 +00:00
include
pd: add support for suspending the task
2014-07-02 00:45:29 +00:00
power
stm32: move spi init to HOOK_CHIPSET_PRE_INIT.
2014-07-02 00:54:42 +00:00
test
motion_sense: make unit test more reliable
2014-07-08 02:18:28 +00:00
util
ectool: Add back support for version 0 of batterycutoff command
2014-06-26 02:42:32 +00:00
.gitignore
Add TAGS and cscope.* to .gitignore
2014-03-31 22:45:09 +00:00
COMMIT-QUEUE.ini
Ignore failures in HWTest and VMTest in the commit queue.
2013-11-01 14:08:36 +00:00
LICENSE
Add LICENSE file to project
2012-05-11 09:11:52 -07:00
Makefile
IRQ list support for enabling specific IRQs without common runtime
2014-06-19 03:25:08 +00:00
Makefile.rules
build: Move libs after source or object files
2014-06-04 21:01:16 +00:00
Makefile.toolchain
stm32: add USB driver
2014-06-18 06:08:45 +00:00
OWNERS
Add OWNERS files
2014-04-02 19:58:53 +00:00
PRESUBMIT.cfg
Add presubmit check for unit test
2014-02-06 19:27:18 +00:00
README
Add standalone lightbar simulation tool
2014-05-15 05:20:14 +00:00
README.fmap
Update EC config and FMAP to reserve room for vboot signatures
2012-05-04 14:42:58 -07:00

README 

For an overview of the Embedded Controller firmware, refer to

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