diff options
Diffstat (limited to 'package/kernel/mac80211/patches/351-0010-brcmfmac-fix-setting-AP-channel-with-new-firmwares.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/351-0010-brcmfmac-fix-setting-AP-channel-with-new-firmwares.patch | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/351-0010-brcmfmac-fix-setting-AP-channel-with-new-firmwares.patch b/package/kernel/mac80211/patches/351-0010-brcmfmac-fix-setting-AP-channel-with-new-firmwares.patch new file mode 100644 index 0000000000..970b48f977 --- /dev/null +++ b/package/kernel/mac80211/patches/351-0010-brcmfmac-fix-setting-AP-channel-with-new-firmwares.patch @@ -0,0 +1,114 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Fri, 27 May 2016 21:07:19 +0200 +Subject: [PATCH] brcmfmac: fix setting AP channel with new firmwares +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Firmware for new chipsets is based on a new major version of code +internally maintained at Broadcom. E.g. brcmfmac4366b-pcie.bin (used for +BCM4366B1) is based on 10.10.69.3309 while brcmfmac43602-pcie.ap.bin was +based on 7.35.177.56. + +Currently setting AP 5 GHz channel doesn't work reliably with BCM4366B1. +When setting e.g. 36 control channel with VHT80 (center channel 42) +firmware may randomly pick one of: +1) 52 control channel with 58 as center one +2) 100 control channel with 106 as center one +3) 116 control channel with 122 as center one +4) 149 control channel with 155 as center one + +It seems new firmwares require setting AP mode (BRCMF_C_SET_AP) before +specifying a channel. Changing an order of firmware calls fixes the +problem. This requirement resulted in two separated "chanspec" calls, +one in AP code path and one in P2P path. + +This fix was verified with BCM4366B1 and tested for regressions on +BCM43602. + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +@@ -4398,7 +4398,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wi + struct brcmf_join_params join_params; + enum nl80211_iftype dev_role; + struct brcmf_fil_bss_enable_le bss_enable; +- u16 chanspec; ++ u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef); + bool mbss; + int is_11d; + +@@ -4474,16 +4474,8 @@ brcmf_cfg80211_start_ap(struct wiphy *wi + + brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon); + ++ /* Parameters shared by all radio interfaces */ + if (!mbss) { +- chanspec = chandef_to_chanspec(&cfg->d11inf, +- &settings->chandef); +- err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); +- if (err < 0) { +- brcmf_err("Set Channel failed: chspec=%d, %d\n", +- chanspec, err); +- goto exit; +- } +- + if (is_11d != ifp->vif->is_11d) { + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY, + is_11d); +@@ -4531,6 +4523,8 @@ brcmf_cfg80211_start_ap(struct wiphy *wi + err = -EINVAL; + goto exit; + } ++ ++ /* Interface specific setup */ + if (dev_role == NL80211_IFTYPE_AP) { + if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss)) + brcmf_fil_iovar_int_set(ifp, "mbss", 1); +@@ -4540,6 +4534,17 @@ brcmf_cfg80211_start_ap(struct wiphy *wi + brcmf_err("setting AP mode failed %d\n", err); + goto exit; + } ++ if (!mbss) { ++ /* Firmware 10.x requires setting channel after enabling ++ * AP and before bringing interface up. ++ */ ++ err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); ++ if (err < 0) { ++ brcmf_err("Set Channel failed: chspec=%d, %d\n", ++ chanspec, err); ++ goto exit; ++ } ++ } + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1); + if (err < 0) { + brcmf_err("BRCMF_C_UP error (%d)\n", err); +@@ -4561,7 +4566,13 @@ brcmf_cfg80211_start_ap(struct wiphy *wi + goto exit; + } + brcmf_dbg(TRACE, "AP mode configuration complete\n"); +- } else { ++ } else if (dev_role == NL80211_IFTYPE_P2P_GO) { ++ err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); ++ if (err < 0) { ++ brcmf_err("Set Channel failed: chspec=%d, %d\n", ++ chanspec, err); ++ goto exit; ++ } + err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le, + sizeof(ssid_le)); + if (err < 0) { +@@ -4578,7 +4589,10 @@ brcmf_cfg80211_start_ap(struct wiphy *wi + } + + brcmf_dbg(TRACE, "GO mode configuration complete\n"); ++ } else { ++ WARN_ON(1); + } ++ + set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); + brcmf_net_setcarrier(ifp, true); + |