Wifi Support

[Fishwaldo]

Pending release of blobs or documentation from bouffalo.
See bouffalolab/bouffalo_sdk#85

[MartinEssink]

The SDK has been updated and from a quick glance seems to include blobs.
https://github.com/bouffalolab/bouffalo_sdk/tree/e6e8da79a50aeb4fcb67ac380c3bd8885cd56faf/components/wireless

[gamelaster]

@MartinEssink that blobs are only for BL61X

[WestonSkeans]

The official bl808 linux has recently added wifi support:
https://github.com/bouffalolab/bl808_linux

Via this project:
https://github.com/bouffalolab/blwnet_xram

Maybe this can be used to expedite the effort to get Wifi support in OpenBouffalo?

[gamelaster]

@WestonSkeans someone tried it and it works OK, it is just not implemented into openbouffalo's buildroot image.

[WestonSkeans]

Wifi support (at least as described in the bl docs) doesn't appear to be implemented in the latest Release image of openbouffalo.

[DMBCT]

How can I make an image with https://github.com/bouffalolab/blwnet_xram included?

[gamelaster]

@DMBCT current branch already supports blwnet_xram

[svmhdvn]

I can confirm after building HEAD and flashing the firmware from output/images along with the sdcard.img, wifi works correctly. I am able to scan for a 2.4GHz wifi network with WPA2-PSK security, connect to it, get an IPv4 address with udhcpc, and ping github.com:

# ping github.com
PING github.com (140.82.114.4): 56 data bytes
64 bytes from 140.82.114.4: seq=0 ttl=52 time=119.819 ms
64 bytes from 140.82.114.4: seq=1 ttl=52 time=91.381 ms
64 bytes from 140.82.114.4: seq=8 ttl=52 time=48.317 ms
64 bytes from 140.82.114.4: seq=9 ttl=52 time=31.403 ms

There is some packet loss sometimes, but it is minimal.

[astrolemonade]

So, if I understand correctly, they released the Wifi source code as open source?

[illantalex]

I am trying to build the wifi driver on a separately cross compiled 6.2.0 kernel, but I am getting such errors when tring to install the module. Can anyone help me compile it in a right way?

# insmod blwnet.ko 
[   20.066757] blwnet: loading out-of-tree module taints kernel.
[   20.068680] blwnet: Unknown symbol _raw_spin_lock (err -2)
[   20.069079] blwnet: Unknown symbol __raw_spin_lock_init (err -2)
[   20.069542] blwnet: Unknown symbol _raw_spin_lock_irq (err -2)
[   20.069987] blwnet: Unknown symbol _raw_spin_unlock_irq (err -2)
[   20.070506] blwnet: Unknown symbol _raw_spin_unlock (err -2)
insmod: ERROR: could not insert module blwnet.ko: Unknown symbol in module
# ./bl
blctl      blwnet.ko
# ./blctl 
./blctl: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory

[illantalex]

I managed to install this driver by just building buildroot from scratch, but when trying to connect to my network I'm getting error -1

# blctl wifi_scan
# blctl wifi_scan_results
# blctl connect_ap myssid mypassw
error: ret -1

This is the dmesg part, where the driver was failed to register

[    3.038671] blwnet: loading out-of-tree module taints kernel.
[    3.041839] Registering blwnet version XRAM-20230817R1
[    3.176729] blwnet soc:ipc: error -ENXIO: IRQ index 0 not found
[    3.177135] blwnet: probe of soc:ipc failed with error -22