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Currently, PCHG assumes PCHG chips are reset only on POR and ignores
reset events. This can cause the state machine to be in an unexpected
state when a reset happens asynchronously.
This patch allows PCHG to handle chip reset events. It also makes the
task explicitly reset PCHG chips at start-up so that everything will
start in known & clean states.
BUG=b:181745891,b:181036152,b:173235954
BRANCH=trogdor
TEST=Verify PCHG behaves expectedly across cold reset, warm reset,
suspend & resume. Repeat the test with and without stylus.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: Ia3dd1fe7ebc8dd6f4ee8149a4c25918922143fc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2741282
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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This patch makes PCHG send CHG_CTRL_CHARGING_INFO_CMD when a stylus
is detected. This will allow the EC to report 'full' to the host
even if charging doesn't start (because the stylus is already
charged).
BUG=b:179390065,b:173235954
BRANCH=trogdor
TEST=CoachZ. Re-attach charged stylus and verify PCHG_STATE_FULL
is reported.
Change-Id: Id8578e2d3d21294fb08a21933f12ecee7f2bd062
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2691729
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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Currently, full charge status is implied by capacity = 100 and
PCHG_STATE_DETECTED (i.e. state='not charging'). If the charger
stops charging before 100% (for battery health control), this
condition doesn't work.
This patch makes PCHG send PCHG_STATE_FULL explicitly when it sees
the soc goes above the threshold in PCHG_STATE_DETECTED.
BUG=b:179390065,b:173235954
BRANCH=trogdor
TEST=CoachZ. Charge till 96% and verify PCHG0/state becomes 'Full'.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: I634f96992cdc7ef44b5e43544603cc5cc9b3a62d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2691366
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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This patch adds a host command to get the peripheral charge port
count and status.
$ ectool pchg
1
$ ectool pchg 0
State: CHARGING (4)
Battery: 50%
Flags: 0x0
$ ectool pchg 0 foo
Invalid parameter count
Usage1: pchg
Usage2: pchg <port>
Usage1 prints the number of ports.
Usage2 prints the status of a port.
$ ectool pchg 100
Bad port index
BUG=b:173235954
BRANCH=Trogdor
TEST=Done on CoachZ. See the description above.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: I33f261e48b16d5933b6f3ca9f3c12fec476edda3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2555628
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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Peripheral charge manager communicates with peripheral charge chips
to charge batteries of peripheral devices.
Tested using Coachz proto and a listener evaluation board from NXP demo
kit as follows:
1. Attach device then battery percentage is reported periodically.
2. Detach device then re-attach device to stop and resume charging.
3. Disable port by 'pchg 0 disable' to stop charging.
4. Enable disabled port by 'pchg 0 enable' to resume charging while
device is in proximity.
5. When port is disabled, a device isn't detected or charged.
BUG=b:173235954
BRANCH=Trogdor
TEST=See the description above.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: I0c2b583e5f7736b26ec7d1fb9cd9b6c59c7e8177
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2538536
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
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