779016 - [Battery][Otoro] Battery level stays at 0 if battery is unplugged (and stayed if replugged)

Status: RESOLVED DUPLICATE of bug 844974

(Core :: Hardware Abstraction Layer (HAL), defect)

Description

[Tim Guan-tin Chien [:timdream] (please needinfo)]

Respective Gaia issue:
https://github.com/mozilla-b2g/gaia/issues/2987

STR:

0. Turned on the device
1. Connect the device with USB, verify charging status on status bar
2. Remove the battery while the device stays on
3. Wait for a moment

Expected:

1. According to Battery API spec, on step (2) or (3) the level should jump to 1.0 as if the device is fully charged (and charging), since we are not differentiate that status with no-battery status.

Actual:

1. Level jumps to 0, and start to charging a non-exist phantom battery.
2. Re-plugged in the battery will not resume the correct battery indication.

Comment 1

[Mounir Lamouri (:mounir)]

GonkHal.cpp never checks if there is actually a battery.
If there is no battery, we should return { level=1.0; charging=true, remainingTime=kUnknownRemainingTime }.

Comment 2

[Gabriele Svelto [:gsvelto]]

I'm doing some cleanup in the HAL component. I'm DUP'ing this as bug 844974 has a WIP patch that might or might not work provided we find the proper hardware to test.