On Tue, Nov 26, 2024 at 2:13 PM Arend van Spriel
<arend.vanspriel@xxxxxxxxxxxx> wrote:
>
> On 11/22/2024 10:03 PM, Alex Shumsky wrote:
> > After commit 9a1590934d9a ("brcmfmac: correctly report average RSSI in
> > station info") it is required from firmware to provide rx_lastpkt_rssi.
> > If this field is not provided brcmfmac doesn't report any RSSI at all.
> > Unfortunately some firmwares doesn't provide it. One example is firmware
> > for BCM43455 found in Raspbberry Pi.
> > See https://github.com/raspberrypi/linux/issues/4574
> >
> > Fix it by falling back to rssi field if rx_lastpkt_rssi is not provided
> > (like it was before 9a1590934d9a).
>
> Sounds like a reasonable approach. However, I would like to learn more
> about the issue. Maybe it is a per-vendor issue so I am interested what
> the sta_info version is that we get from firmware. It is printed in
> brcmf_cfg80211_get_station() with brcmf_dbg(). You can make it a
> bphy_err() call instead or enable TRACE level debug messages in the driver.
>
> Also would be good to know the firmware version and kernel version of
> the BCM43455.
>
> Regards,
> Arend
I've just checked sta version in trace logs:
brcmf_cfg80211_get_station version 4
Firmware I currently use:
BCM4345/6 wl0: Aug 29 2023 01:47:08 version 7.45.265 (28bca26 CY) FWID
01-b677b91b
https://github.com/murata-wireless/cyw-fmac-fw/blob/e024d0c0a3ab241f547cb44303de7e1b49f0ca78/cyfmac43455-sdio.bin
I'm not sure what firmware version is used in the raspberry pi distro.
