Hi Soeren,
On Tue, Sep 07, 2021 at 09:22:52PM +0200, Soeren Moch wrote:
> On 25.04.21 13:02, Shawn Guo wrote:
> > Instead of aborting country code setup in firmware, use ISO3166 country
> > code and 0 rev as fallback, when country_codes mapping table is not
> > configured. This fallback saves the country_codes table setup for recent
> > brcmfmac chipsets/firmwares, which just use ISO3166 code and require no
> > revision number.
> This patch breaks wireless support on RockPro64. At least the access
> point is not usable, station mode not tested.
>
> brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4359/9 wl0: Mar 6 2017
> 10:16:06 version 9.87.51.7 (r686312) FWID 01-4dcc75d9
>
> Reverting this patch makes the access point show up again with linux-5.14 .
Sorry for breaking your device!
So it sounds like you do not have country_codes configured for your
BCM4359/9 device, while it needs particular `rev` setup for the ccode
you are testing with. It was "working" likely because you have a static
`ccode` and `regrev` setting in nvram file. But roaming to a different
region will mostly get you a broken WiFi support. Is it possible to set
up the country_codes for your device to get it work properly?
Shawn
>
> Regards,
> Soeren
> > Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
> > ---
> > .../broadcom/brcm80211/brcmfmac/cfg80211.c | 17 +++++++++++------
> > 1 file changed, 11 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
> > index f4405d7861b6..6cb09c7c37b6 100644
> > --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
> > +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
> > @@ -7442,18 +7442,23 @@ static s32 brcmf_translate_country_code(struct brcmf_pub *drvr, char alpha2[2],
> > s32 found_index;
> > int i;
> >
> > - country_codes = drvr->settings->country_codes;
> > - if (!country_codes) {
> > - brcmf_dbg(TRACE, "No country codes configured for device\n");
> > - return -EINVAL;
> > - }
> > -
> > if ((alpha2[0] == ccreq->country_abbrev[0]) &&
> > (alpha2[1] == ccreq->country_abbrev[1])) {
> > brcmf_dbg(TRACE, "Country code already set\n");
> > return -EAGAIN;
> > }
> >
> > + country_codes = drvr->settings->country_codes;
> > + if (!country_codes) {
> > + brcmf_dbg(TRACE, "No country codes configured for device, using ISO3166 code and 0 rev\n");
> > + memset(ccreq, 0, sizeof(*ccreq));
> > + ccreq->country_abbrev[0] = alpha2[0];
> > + ccreq->country_abbrev[1] = alpha2[1];
> > + ccreq->ccode[0] = alpha2[0];
> > + ccreq->ccode[1] = alpha2[1];
> > + return 0;
> > + }
> > +
> > found_index = -1;
> > for (i = 0; i < country_codes->table_size; i++) {
> > cc = &country_codes->table[i];
>
