Upstream WPANUSB

[jadonk]

Is your feature request related to a problem? Please describe.
BeagleConnect Freedom relies on WPANUSB or BCFSERIAL drivers. It would be great if they were upstream and "just worked" rather than working with an out-of-tree fork.

Describe the solution you'd like
I got this feedback from Stefan Schmidt on what needs to be done:
What work need to be done to get this in good shape and upstreamed?
Quite a few tasks, sadly.

Random order:

1. The wpanusb linux driver is missing quite a few driver ops (listen
   before talk, set frame retries). I added rough sketches but these are
   non functional due to 2.
2. The zephyr firmware side needs to implement these ops as well and
   hook it up to the zephyr radio_api
3. A way to read the permanent extended address from the device to use
   in Linux is needed
4. The generic aspect of the firmware driver combo is missing
   completely. Band, supported channel, power levels, etc is all hard-coded
   in the linux driver and not queried from the device firmware. Its not
   even giving the page on which a channel is being set when changing it.
5. More driver ops are coming in right now as there is heavy work
   towards support management frames as well as active and passive scanning
   on the Linux stack. Which means these would need proper handling on teh
   firmware side as well.

I would say 1-3 are the simpler ones here and should have a clear
strategy to get fixed.

The whole generic aspect is a lot more complex. We would want this
driver to be able to cover all supported devices on the zephyr side and
communicate the capabilities of the currently used radio to the linux
driver so the linux stack can be setup correctly. We also would want to
set this up in a way to allow for future extensions like new frequency
bands in newer spec versions, and so on.

And none of this is taking a bigger MTU variant into account.

Number 5 also means that we would need someone to actively maintain the
zephyr side of wpanusb and keep up which changes.

Describe alternatives you've considered
There's no substitute for upstream.

Additional context
This might make a good internship project. Overall, I think we should start doing a better job of putting our backlog here in a public place.

[silver2row]

Hello Everyone,

I am willing to take time out of my awkward schedule to assist in Open Source activities. I have found, through learning a bit at a time, that Open Source is more than just a philosophy and practice. It is also a way for people to congregate around Linux, programming, and STEM. Not only in education but also in real life practice, Open Source initiatives have helped me post-education to learn about what little was offered while in school on the subjects involving but not limited to STEM in general.

Outside of that plea, I would like to associate myself with the beagleboard.org persons and help while learning new aspects to the ZyphrProject and building in and around Linux.

Seth

P.S. I actually slept on it. I was unaware of what would entail and it frightened me. But, like most procedures, one has to skip on the scared aspect to it all. The only concern I have currently is the BCFSERIAL driver(s). I have been researching ideas on the Project, how to build, and the driver aspect to it would be the most time consuming because I know very little about where in the world this specific driver is located or even how to build it. If there are questions or concerns on your part for me specifically, please let me know. I will answer!

[jadonk]

Our current fork lives at https://github.com/jadonk/wpanusb/tree/beagleconnect

There's also our serial implementation at https://github.com/jadonk/bcfserial

[jadonk]

Some mailing list discussion: https://lore.kernel.org/linux-wpan/[email protected]/T/

[silver2row]

Hello...okay. So, would I need a CC1352r/dev. board for messing w/ the wpan-USB driver and some USB datasheet in particular?

I noticed a Quark SE C1000 dev. board in question but they are a bit tiresome to find for now. I will keep trying.

Seth

P.S. I am sticking w/ it. If you have more time to bother, just send some prerequisites for me. I will research ideas.

1. Here, https://github.com/linux-wpan/wpan-tools/tree/master/examples
2. And, https://www.kernel.org/doc/html/v5.10/networking/ieee802154.html
3. One more, https://linux-wpan.org/wpan-tools.html

Anyway, I am finding more about wpan-next and what is available now. It seems not much has changed since 5.6-rc6 to 5.10.x.

Okay so, I have the standard now. Hopefully, they will not update this standard any time soon. I will get to reading and get back to this idea soon.

[jadonk]

I can get you a dev board if you'll do this work. Contact me on Slack (find the link for GSoC students) to provide an address.

[silver2row]

Hello...I would not boast about me but I can try. I will contact you on Slack.

Me again...thank you for entrusting this task to me. I will use what has already been produced and then try to add the required additions/subtractions. I am handy but I may not know everything, i.e. as usual w/ anyone on any subject.

I am in the process of acquiring the correct and needed paperwork on the subjects at hand.

Seth

P.S. Anyway, I will read up, get cracking, and then produce w/ a resolution. I also meant to ask away.

1. Who should I go to for an idea or two?
2. Is it safe to ask away to anyone?

[silver2row]

Hello Sir,

I am close to doing things. Anyway, here are some errors I have received from trying to install things and make things happen, e.g. in case you or anyone else may wonder about how or why things are transpiring:

# From Building the WPAN lib. found at https://github.com/linux-wpan/wpan-tools
# This was on the BBGG w/ git clone and then building...

./configure: line 4898: syntax error near unexpected token `newline'
./configure: line 4898: `LT_INIT('

Also, on an instance of Ubuntu for the Win 11 Machine, I found these items to be evident:

phlic@Morphie:~$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 2047:0aa5 Texas Instruments BeagleConnect
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
phlic@Morphie:~$ dmesg | tail
[ 2873.429957] usb 1-1: New USB device found, idVendor=2047, idProduct=0aa5, bcdDevice= 2.00
[ 2873.429959] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2873.429960] usb 1-1: Product: BeagleConnect
[ 2873.429961] usb 1-1: Manufacturer: BeagleBoard.org
[ 2873.429962] usb 1-1: SerialNumber: 29B59A4621000900
[ 2873.436333] cdc_acm 1-1:1.0: ttyACM0: USB ACM device
[ 2896.577670] init: (144) ERROR: LogException:33: TELEMETRY: (null) No such file or directory @d:\os\src\onecore\VM\linux\mountutil\mountutilcpp.h:19 (MountEnum)

[ 2975.218625] usb 1-1: seqnum max
[ 2998.882359] init: (4288) ERROR: InitCreateProcessUtilityVm:1777: read failed -1 9

So, I have not used wpan-next or wpan-tools before and building is a bit different for now.

Learning at its finest!

Seth

P.S. The python3 script is elusive still to me: cc2538-bsl.py /usr/share/beagleconnect/cc1352/wpanusb_beagleconnect.bin /dev/ttyACM0 .

I have not found it nor do I know what it looks like so far. So, on the image from your beagleconnect repo. that I found, things almost work out of the box but...

1. I cannot use the bcfserial repo. or wpanusb repo. either.
2. I am not completely sure what the click id board is currently. I went to their site online, Mikroe, and could not find the exact replica. Oh and I think it is a "debugger" of sorts. I am not sure even though the side click section(s) are listed and w/ many GNDs.

A. I have some plans.
B. I will report back soon.

[RobertCNelson]

@silver2row WSL is not a target anyone in the community can 'patch' please post those issues to the WSL github...

Test images are located here:
https://rcn-ee.net/rootfs/debian-mikrobus-armhf/

Regards,

[silver2row]

Yes Sir,

@RobertCNelson , thank you.

@RobertCNelson : Sir, please look here:

./cc2538-bsl.py cc1352/wpanusb_beagleconnect.bin /dev/ttyACM0
Opening port /dev/ttyACM0, baud 50000
Reading data from cc1352/wpanusb_beagleconnect.bin
Cannot auto-detect firmware filetype: Assuming .bin
Connecting to target...
ERROR: Timeout waiting for ACK/NACK after 'Synch (0x55 0x55)'

So, this is w/out the Connect Freedom being flashed w/ Zephyr supposedly. So, I am attached to the Connect Freedom by way of BBGG and w/ this info. from the board:

BeagleBoard.org Debian Bullseye mikroBUS IoT Image 2022-02-12

...

Linux BeagleBone 5.15.23-bone20 #1bullseye PREEMPT Sat Feb 12 00:02:26 UTC 2022 armv7l GNU/Linux

I will be messing w/ the connection file for a bit for flashing. I found some additional error/upgrades at this site: https://github.com/jadonk/beagleconnect/issues .

Seth

P.S. I know people are rushed, busy, and duplicating ideas. Please forgive me for my needy way upfront. Oh! I had the installment of an image on the eMMC b/c of the board being new. Blah. Off to retry.

One last thing before I am done for tonight:

debian@BeagleBone:~/wpanusb$ ./scripts/lowpan.sh 
Using phy channel 20 PAN ID 0xabcd
IP: 2001:db8::1/64 Short: 0xbee1
Cannot find device "wpan0"
command failed: No such device (-19)
command failed: No such device (-19)
command failed: No such file or directory (-2)
Cannot find device "wpan0"
Cannot find device "wpan0"
Cannot find device "lowpan0"
Cannot find device "lowpan0"
debian@BeagleBone:~/wpanusb$ ./scripts/modprobe.sh 
./scripts/modprobe.sh: 3: modprobe: not found
./scripts/modprobe.sh: 4: modprobe: not found
./scripts/modprobe.sh: 5: insmod: not found
debian@BeagleBone:~/wpanusb$ sudo ./scripts/modprobe.sh 
[sudo] password for debian: 
insmod: ERROR: could not insert module ./wpanusb.ko: File exists

[RobertCNelson]

@silver2row saw your messages on irc, this is a prototype, please don't ask on irc in the general category..

[silver2row]

@RobertCNelson ,

Yes sir. No issue.

Seth

P.S. Is there a particular room to ask in currently?