diff options
| author | Daisuke Nojiri <dnojiri@chromium.org> | 2021-04-30 09:07:10 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-06-11 21:20:29 +0000 |
| commit | 4a46ad60f03301f0184df4a0f977b02cfeb3a1f7 (patch) | |
| tree | 8a69e9960bc058a88a0dfb8725d76108a62c645b /include/ec_commands.h | |
| parent | fae894230df4f0e34dc4f13c587ee4d721dfa812 (diff) | |
| download | chrome-ec-4a46ad60f03301f0184df4a0f977b02cfeb3a1f7.tar.gz | |
PCHG: Handle WLC_CHG_CTRL_DEVICE_STATE_DEVICE_DOCKED
We'll extend the period for a stylus to be statically charged so that
EEPROM corruption can be avoided by not entering negotiated mode with
a depleted battery.
During this static charge period, the user currently doesn't see any
charging indication. To prevent users from removing a stylus, we'll
add a new state 'device docked' to ctn730.
The EC firmware is updated to handle this new state as follows:
- PCHG_STATE_DETECTED will be reused to indicate a device is in
proximity but not ready for communication.
- PCHG_STATE_CONNECTED will be added to indicate a device is ready
for digital communication. This is formerly called DETECTED.
- CTN730 driver produces PCHG_EVENT_DETECTED on 'docked' event and
PCHG_EVENT_CONNECTED on 'detected' event.
- When DEVICE_UNDOCKED is received in PCHG_STATE_DETECTED,
transition to PCHG_STATE_ENABLED.
BUG=b:189323070, b:173235954
BRANCH=trogdor
TEST=Verify unpowered listener board can be detected.
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: I7fa83f6dd31cf74eab7c158e557ddc09f8976798
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2920628
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'include/ec_commands.h')
| -rw-r--r-- | include/ec_commands.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/ec_commands.h b/include/ec_commands.h index c0bea49322..09592c8b96 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -6820,16 +6820,18 @@ enum pchg_state { PCHG_STATE_INITIALIZED, /* Charger is enabled and ready to detect a device. */ PCHG_STATE_ENABLED, - /* Device is detected in proximity. */ + /* Device is in proximity. */ PCHG_STATE_DETECTED, /* Device is being charged. */ PCHG_STATE_CHARGING, /* Device is fully charged. It implies DETECTED (& not charging). */ PCHG_STATE_FULL, - /* In download (or firmware update) mode. Update session is closed. */ + /* In download (a.k.a. firmware update) mode */ PCHG_STATE_DOWNLOAD, - /* In download mode. Session is opened. Ready for receiving data. */ + /* In download mode. Ready for receiving data. */ PCHG_STATE_DOWNLOADING, + /* Device is ready for data communication. */ + PCHG_STATE_CONNECTED, /* Put no more entry below */ PCHG_STATE_COUNT, }; @@ -6843,6 +6845,7 @@ enum pchg_state { [PCHG_STATE_FULL] = "FULL", \ [PCHG_STATE_DOWNLOAD] = "DOWNLOAD", \ [PCHG_STATE_DOWNLOADING] = "DOWNLOADING", \ + [PCHG_STATE_CONNECTED] = "CONNECTED", \ } /** |