Re: AP6275 / bcm43752 pcie on mainline brcmf

[Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>]

On 11/24/2022 1:26 PM, Andy Green wrote:
> On 11/24/22 12:22, Arend van Spriel wrote:
> > On 11/24/2022 1:14 PM, Andy Green wrote:
> > > On 11/24/22 09:42, Arend van Spriel wrote:
> > > > On 11/18/2022 6:41 AM, Andy Green wrote:
> > > > > On 11/17/22 21:52, Arend Van Spriel wrote:
> > > > >
> > > > > > I see. So could you load bcmdhd and provide log. Preferably with 
> > > > > > higher debug level. It also has a module parameter for it. I think 
> > > > > > it is called dhd_msg_level and please set it to 0x817.
> > > > >
> > > > > It's here:
> > > > >
> > > > > https://warmcat.com/ap6275p-dhd-log1.txt
> > > >
> > > > Hi Andy,
> > > >
> > > > Thanks for the log. Together with the dhd driver sources I could 
> > > > make some sense of it. Perhaps you can try the following hack and 
> > > > see if we make it over the first hurdle.
> > >
> > > OH!  I found that the line below should be count, not sizeof(count).
> >
> > Good job! I was testing you obviously. You passed. Nah, I just feel 
> > stupid.
>
> No it's great, the point is it directly identified the root cause 
> without access to the platform, it's not so easy.
>
> > > ... any way, good job!
> >
> > Thanks. Will clean it up and formally submit it. I also had a quick 
> > look at the SDIO variant, but not seeing anything obvious there in 
> > terms of firmware loading.
>
> I only have the pcie module not the SDIO one.
>
> For the scan situation, he understands what is being asked via 
> connmanctl "enable wifi", but he feels something wrong
>
> connmanctl> enable wifi
>
> connmanctl>
> Enabled wifi
> connmanctl> [  272.174946] ieee80211 phy0: brcmf_run_escan: error (-52)
> [  272.174956] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-52)
>
>
> connmanctl> [  275.133157] ieee80211 phy0: brcmf_run_escan: error (-52)
> [  275.133166] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-52)
>
>
> connmanctl> [  284.138852] ieee80211 phy0: brcmf_run_escan: error (-52)
> [  284.138856] ieee80211 phy0: brcmf_cfg80211_scan: scan error (-52)
>
> 52 is EBADE, I recall you mentioned that the scan api had been changed 
> recently... is this possibly related to that?  Grepping around for EBADE 
> near the function it mentions, it tries to take evasive action if it 
> sees one in some places already.

EBADE is a generic error message indicating something went wrong 
communicating with firmware. Not very informative. Were you using any 
debug level? Anyway, please load the driver with module parameter 
debug=0x5416 and try scanning using iw utility.

Regards,
Arend

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