1230037 - [meta][OTA] [Wi-Fi] Separate Gecko and Gonk layers in Wi-Fi module

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Wifi, defect)

Description

[Ethan Tseng [:ethan]]

This bug is used to track the plan to refactor Wi-Fi module for the OTA project.

Comment 1

[Ethan Tseng [:ethan]]

Attachment: Wi-Fi Stack in FxOS.png

The architecture of Wi-Fi module in FxOS.

Currently, Wi-Fi module in Gecko directly uses libhardware_legacy.so and libnetutils.so. The rough idea is to add an abstraction layer/interface to remove dynamic library dependencies from Gecko layer.

Comment 2

[Tim Huang[:timhuang]]

Basically, we would create a daemon for WiFi and move all dependencies into this daemon, for example, the libhardware_legacy.so will link to this deamon instead of gecko. This daemon would be called 'wifid'. The wifid would be responsible for following things:
  - Load/Unload wifi driver.
  - Start/Stop wpa_supplicant.
  - Bridge commands to wpa_supplicant from gecko.
  - Bridge messages to gecko from wpa_supplicant.
And the IPC between gecko and wifid will be achieved through UNIX domain socket.

Comment 3

[Tim Huang[:timhuang]]

The wifid should handle WiFi tethering as well. In other words, it has to bridge messages between gecko and hostapd.

Comment 4

[Tim Huang[:timhuang]]

Right now, I am working on the WiFi daemon. And the estimated time of finishing Wifi daemon would be the end of Feb. After that, I will spend two more weeks for rewriting the WifiUtils of Gecko. Thus, The ETA of this bug should be at the middle of March.

Comment 5

[Tim Huang[:timhuang]]

Hi Michael,
We need a empty repository in b2g for this Wifi daemon. And its name should be 'platform_system_wifid'. Should I open a bug for creating this repository or you could help us to create one from here? Thanks.

Comment 6

[Ethan Tseng [:ethan]]

(In reply to Tim Huang[:timhuang] from comment #4)
> Right now, I am working on the WiFi daemon. And the estimated time of
> finishing Wifi daemon would be the end of Feb. After that, I will spend two
> more weeks for rewriting the WifiUtils of Gecko. Thus, The ETA of this bug
> should be at the middle of March.

Thanks Tim for your estimation.
Set target milestone according to it.

Comment 7

[Tim Huang[:timhuang]]

Change this bug into a meta bug for separating Gecko and Gonk layers in Wi-Fi module.

Comment 8

[Tim Huang[:timhuang]]

Because I have been shifted into other project, so I left the assigner into nobody. Any one get interested on this bug, feel free to take it.

Comment 9

[BMO Automation]

Firefox OS is not being worked on