Adding trickle charging mode to precharge batteries with
voltage lower than minimal design value. This CL adds
control to charger voltage to track battery input current
change.
To prevent battery from deeply discharging, this CL preserves
3% of the design capacity.
Minor bug fixes include error state check and charger control
logic.
Signed-off-by: Rong Chang <rongchang@chromium.org>
BUG=chrome-os-partner:8660,8661
TEST=manual
Plug AC power, the power adapter led should be
'yellow'. On the EC serial console, type 'battery'
and 'charger' commands.
Battery input current should staid close to its
desired current.
A deeply discharged battery (5.5V) should be revived to
a healthy state after 30 minutes ~ 4 hours.
Change-Id: Ibaa2396c6b751639d98db32f5919b1e8ec700e40
This CL adds battery SMI events. And refactors the charging state
machine by adding share state context for all handlers.
Power events are moved to common handler. Minor clean up on console
output messages.
Signed-off-by: Rong Chang <rongchang@chromium.org>
BUG=chrome-os-partner:7526,7937,8450
TEST=manual:
Watch console message when connecting/disconnecting AC adapter and
battery. Check the state transition.
Change-Id: I42eec4f87a9d49bd193cb9dde9080e3dfccbb77c
This CL adds LPC commands to provide the following information:
- Design Capacity (dword)
- Last Full Charge Capacity (dword)
- Design Voltage (dword)
- Design Capacity of Warning (dword)
- Design Capacity of Low (dword)
- Battery Type (ascii)
- Model Number (ascii)
- Serial Number (ascii)
- OEM (usually Vendor) (ascii)
- Battery charge cycle count (dword)
Signed-off-by: Rong Chang <rongchang@chromium.org>
BUG=chrome-os-partner:8181
TEST=none
CQ-DEPEND:Iad4d63c996272568b5a661a6716790ef151b29c5
Change-Id: Iabaf7d9862e15c5b21cf5170cf43450e472b7836
