1033945 - [Flame] cannot do SD card hotplug on Flame

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: General, defect)

Description

[Alphan Chen [:alchen]]

The problem is found when we are developing mount/unmount feature. (Bug 945642)

In normal case,

When people insert a SD card, gecko should be notified that there are volume state changes as below.
"NoMedia -> Pending -> Idle-Unmounted -> Checking -> Mounted"


When people remove a SD card, gecko should got the following state changes.
"Mounted -> Unmounting -> Idle-Unmounted -> No-Media"

However, there is no any volume change when we insert or remove a sd card.
It looks like that we don't have the ability of detecting sd card on Flame.
This problem can also be found on V122 base image.

Comment 1

[Alphan Chen [:alchen]]

Hi Francis,
could you loop in T2M members for further discussion?
Thanks.

Comment 2

[Alphan Chen [:alchen]]

Attach the normal log for reference:

(LOG of insert SD card)
D/Vold    (  102): Volume sdcard state changing 0 (No-Media) -> 2 (Pending)
D/Vold    (  102): Volume sdcard state changing 2 (Pending) -> 1 (Idle-Unmounted)
D/Vold    (  102): Volume sdcard state changing 1 (Idle-Unmounted) -> 3 (Checking)
D/Vold    (  102): Volume sdcard state changing 3 (Checking) -> 4 (Mounted)


(LOG of remove SD card)
D/Vold    (  102): Volume sdcard state changing 4 (Mounted) -> 5 (Unmounting)
D/Vold    (  102): Volume sdcard state changing 5 (Unmounting) -> 1 (Idle-Unmounted)
D/Vold    (  102): Volume sdcard state changing 1 (Idle-Unmounted) -> 0 (No-Media)

Comment 3

[Francis Lee [:frlee]]

hi Youlong, Yanan,

according to our test result, SD card hotplug seems not supported on Flame. could you please check?

Comment 4

[Francis Lee [:frlee]]

hi Youlong, Yanan,

could you please check if there's HW dependence on this issue? in SIM hot swap case, device requires to have a SIM detect pin, so that it can detect properly if SIM is removed or not. i wonder, in the case of SD card, this should be standard HW spec. could you please confirm it?

Comment 5

[Eric Chou [:ericchou] [:echou]]

(In reply to Francis Lee [:frlee] from comment #4)
> hi Youlong, Yanan,
> 
> could you please check if there's HW dependence on this issue? in SIM hot
> swap case, device requires to have a SIM detect pin, so that it can detect
> properly if SIM is removed or not. i wonder, in the case of SD card, this
> should be standard HW spec. could you please confirm it?

Just a friendly reminder that mount/unmount API is one of 2.1 device team features. We need to get the answer of Francis' question as soon as possible so that we can continue our work.

Comment 6

[Francis Lee [:frlee]]

hi Eric,

i have already told Howie 2 days ago that T2M has confirmed that Flame doesn't have SD card detect pic (it is a common cost down HW design if SD card is inside of the back cover). it's a HW limitation that Flame doesn't support SD card hotplug.

Comment 7

[Mike Lien[:mlien]]

refer to comment 6, wontfix due to hw limitation

Comment 8

[Dave Hylands [:dhylands]]

Generally speaking, sdcard connectors of the style used in the flame don't have card-detect.

The connectors where the card slides in (like the dolphin) are the ones which have the card-detect.