#2620 HIGH Trial-3: Show wrong battery status with Lithium battery in OFW.

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#2620: Show wrong battery status with Lithium battery in OFW.
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  Reporter:  chiaying.lin         |       Owner:  wmb at firmworks.com
      Type:  defect               |      Status:  closed           
  Priority:  high                 |   Milestone:  Trial-3          
 Component:  ofw - open firmware  |     Version:                   
Resolution:  fixed                |    Keywords:                   
  Verified:  0                    |  
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Comment (by wmb at firmworks.com):

 Quanta needs to provide a complete and accurate specification of how to
 determine the battery status using EC port 6c commands.

 The current implementation of watch-battery is based on the information in
 http://wiki.laptop.org/go/Ec_specification

 That information is incomplete.  For example, it does not mention the
 units for voltage (command 0x10), the units for current (command 0x11),
 the meaning and values for ACR (command 0x12), the units for battery
 temperature (0x13) and ambient temperature (0x14).  The battery status
 byte information is incomplete, because I have seen bit 6 change, even
 though it is listed as reserved.  The units of SOC (command 0x16) are not
 specified.

 How do I determine whether the battery is charging or discharging?  Do
 "battery is present" but "battery is NOT low" and "battery is not fully
 charged" imply charging or discharging?

-- 
Ticket URL: <http://dev.laptop.org/ticket/2620#comment:5>
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