brcmfmac: follow user-space regulatory domain selection
When user-space uses a valid ISO-3166-1 country code for its
regulatory domain selection, the driver will try to configure
the firmware to use the same.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
index 1172551..2471dd5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
@@ -3982,7 +3982,6 @@
brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
settings->ssid, settings->ssid_len, settings->auth_type,
settings->inactivity_timeout);
-
dev_role = ifp->vif->wdev.iftype;
mbss = ifp->vif->mbss;
@@ -5921,6 +5920,29 @@
vif_event_equals(event, action), timeout);
}
+static void brcmf_cfg80211_reg_notifier(struct wiphy *wiphy,
+ struct regulatory_request *req)
+{
+ struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
+ struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
+ struct brcmf_fil_country_le ccreq;
+ int i;
+
+ brcmf_dbg(TRACE, "enter: initiator=%d, alpha=%c%c\n", req->initiator,
+ req->alpha2[0], req->alpha2[1]);
+
+ /* ignore non-ISO3166 country codes */
+ for (i = 0; i < sizeof(req->alpha2); i++)
+ if (req->alpha2[i] < 'A' || req->alpha2[i] > 'Z') {
+ brcmf_err("not a ISO3166 code\n");
+ return;
+ }
+ memset(&ccreq, 0, sizeof(ccreq));
+ ccreq.rev = cpu_to_le32(-1);
+ memcpy(ccreq.ccode, req->alpha2, sizeof(req->alpha2));
+ brcmf_fil_iovar_data_set(ifp, "country", &ccreq, sizeof(ccreq));
+}
+
static void brcmf_free_wiphy(struct wiphy *wiphy)
{
kfree(wiphy->iface_combinations);
@@ -5997,6 +6019,7 @@
goto priv_out;
brcmf_dbg(INFO, "Registering custom regulatory\n");
+ wiphy->reg_notifier = brcmf_cfg80211_reg_notifier;
wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
wiphy_apply_custom_regulatory(wiphy, &brcmf_regdom);