The interrupts to detect when the falling edge on the UART signals are
currently disabled and never reenabled. Power off is detected by polling
and not through interrupts. This change removes all of those falling
edge interrupts.
BUG=none
BRANCH=none
TEST=cr50 can detect when the EC, AP, and Servo are off or on
Change-Id: I0fd8a0d970f3235b26af6b90dd395ea7c75e0c17
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/385192
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
When cr50 is not trying to do ccd, we dont need to monitor the devices.
Disable device state detection interrupts and the AP and EC UARTs.
BUG=none
BRANCH=none
TEST=gru and kevin monitor devices correctly when ccd is enabled, and
dont monitor anything when it is disabled.
Change-Id: Ic3f5974320486ff6dd0147c490a1c294cc2f6a76
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/356770
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
There are a couple of issues that cr50 has when it cannot know the state
of servo, the EC, and the AP. This change adds support so we can detect
when the AP or EC has been powered on and when servo has been connected.
It uses the UART RX signals to monitor the power state of the AP and EC.
The TX signals are used to monitor the state of servo.
BUG=chrome-os-partner:52056,chrome-os-partner:52322
BRANCH=none
TEST=verify device states are correct when the AP and EC are powered on
or off and when Servo is attached or detached
Change-Id: Id0a2281b65cb367ecc8d0ca2f9a576672318a5fb
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/344019
