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5 Commits

Author SHA1 Message Date
Vic Yang
0e261504aa Stub smart battery read/write functions 
For better testability, let's move smart battery read/write functions to
a stub so that we can easily mock them.

BUG=chrome-os-partner:10270
TEST=build success

Change-Id: I416580c6dc7911e376bc232e5f0560117d9353c2
Reviewed-on: https://gerrit.chromium.org/gerrit/26227
Reviewed-by: Rong Chang <rongchang@chromium.org>
Commit-Ready: Vic Yang <victoryang@chromium.org>
Tested-by: Vic Yang <victoryang@chromium.org>
 2012-06-27 03:22:17 -07:00
Rong Chang
c56b1a7bdb TPSChrome charging loop 
This change contains a basic charging loop that follows Chromium
battery charging flow. The temperature range constants, loop delay
time will be move to battery pack later.

Signed-off-by: Rong Chang <rongchang@chromium.org>
BUG=chrome-os-partner:9724,9757,9759
TEST=manual, uart console
  Plug AC adapter:
    > pmu event: 0000000000001110
    [batt] state discharging -> idle
    [batt] state idle -> charging
    > battery
      I:         0x04fd = 1277 mA(CHG)a

  Unplug AC adapter:
    > pmu event: 0000000000000110
    [batt] state charging -> idle
    [batt] state idle -> discharging
    > battery
      I:         0xffcb = -53 mA(DISCHG)

Change-Id: Ifed594d78c0ed08c5e4821a9c8581c1a87526729
Reviewed-on: https://gerrit.chromium.org/gerrit/25618
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
 2012-06-26 18:15:35 -07:00
Rong Chang
526db244e4 Add smart battery functions read ascii info 
Signed-off-by: Rong Chang <rongchang@chromium.org>

BUG=chrome-os-partner:8321
TEST=manual:
   type 'battery' in EC serial console, check following fields:
     Manufacturer
     Device name
     Device chemistry
CQ-DEPEND:I0ad3ad45b796d9ec03d8fbc1d643aa6a92d6343f

Change-Id: Iad4d63c996272568b5a661a6716790ef151b29c5
 2012-03-06 16:15:30 +08:00
Rong Chang
1c70e29165 Add battery charge state machine and task 
This CL adds a charge state machine for SMB compliant battery pack.
Vendor specific charge constraints can be applied through function
call, defined in battery_pack.h .

BUG=chrome-os-partner:7526
TEST=Attach EC serial console
  Unplug AC adapter: state ==> "discharge"
  Plug AC adapter:   state ==> "charge"
  Battery full:      state ==> "idle"
  Unplug battery:    state ==> "error"

Change-Id: Iabff0988a6067d37c17c11b060bbb7e66505c118
 2012-03-03 14:01:52 +08:00
Rong Chang
62df62ccd4 Add basic smart battery driver 
This change adds a common part of smart battery driver. Following
features are not implemented, or in chip specific driver:
  Battery access control, authentication, factory mode
  Manufacturer access/data commands
  Block read/write, device name, flash data
  Chip specific features, per cell info/temp/capacity

Signed-off-by: Rong Chang <rongchang@google.com>
BUG=chrome-os-partner:7856
TEST=console command check battery staus
  [unplug power]
  > battery
  [check voltage,current,capacity,time to empty]
  [plug power]
  > charger voltage 8400
  > charger current 4250
  > battery
  [check current,time to full]
  > charger input 4032
  > battery
  [check current,time to full]
  [wait 130 seconds, charger watch dog timeout]
  > battery
  [check current]

Change-Id: Ifac17a0892f52e8f37eebc14b00e71f18360776c
Signed-off-by: Rong Chang <rongchang@chromium.org>
 2012-02-10 16:12:56 -08:00