Thinfirm 1.5

This documents the project to create a thin firmware and libertastf driver for the XO-1.5.

Introduction

The XO-1.5 uses the Marvell 8686 module instead of the 8388 that the XO-1s used. There is thin firmware and a libertastf driver for the Marvell 8388. New firmware and modified libertastf drivers need to be written.

Project plan

Ultimately, we will deliver a thin firmware and a working libertas tf driver to go with it. These will work on XO-1.5. However, it's better to split the larger task into several smaller sub-tasks. These are outlined below (already completed sub-tasks prior to this breakdown are excluded).

ID	Milestone	Deliverable	Tests	Status
1	Compile full firmware build	sd8686.bin	Does full firmware load on XO-1.5?	Done
2	Thin firmware specification	Initial version of specification	Readable version of spec checked in.	In progress
3	wireless-testing kernel on OLPC? Find out if wireless-testing will work on the OLPC. It's OK if some parts are broken, only concerned about booting with a command-line and full functionality of network and network tools. This will give us the ability to only work with one kernel.	wireless-testing on Obelix working kernel image on XO-1.5	Does XO-1.5 boot? Does network work with standard libertas full firmware?	In progress
4	802.11 packet makes it to the air	unmodified libertas_sdio modified full firmware - disable 802.3 -> 802.11 conversion packet injection test - use click, libpcap, python, etc...	injected 802.11 frame ?== sniffed 802.11 frame
5	libertastf_sdio	Driver 0.1 - Adapt libertas_sdio to libertastf_sdio thin firmware 0.1 - supports management frames	Associate to AP Ping
6	Monitor interface	Driver 0.2 thin firmware 0.2	iw add rtap0 interface sniff packets
7	Mesh	Driver 0.3 thin firmware 0.3	Associate to mesh Ping

Links

• Thin firmware spec
• Steve's Thinfirm 1.5 developer notes
• Thinfirm 1.5 tools