diff options
Diffstat (limited to 'package/kernel/mac80211/patches/973-ath10k_fix-band_center_freq-handling-for-VHT160-in-recent-firmwares.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/973-ath10k_fix-band_center_freq-handling-for-VHT160-in-recent-firmwares.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/973-ath10k_fix-band_center_freq-handling-for-VHT160-in-recent-firmwares.patch b/package/kernel/mac80211/patches/973-ath10k_fix-band_center_freq-handling-for-VHT160-in-recent-firmwares.patch new file mode 100644 index 0000000000..c8f79b815a --- /dev/null +++ b/package/kernel/mac80211/patches/973-ath10k_fix-band_center_freq-handling-for-VHT160-in-recent-firmwares.patch @@ -0,0 +1,50 @@ +From: Sebastian Gottschall <s.gottschall@dd-wrt.com> + +starting with firmware 10.4.3.4.x series QCA changed the handling of the channel property band_center_freq1 and band_center_freq2 in vht160 operation mode +likelly for backward compatiblity with vht80 only capable clients. +this patch adjusts the handling to get vht160 to work again with official qca firmwares newer than 3.3 +consider that this patch will not work with older firmwares anymore. to avoid undefined behaviour this we disable vht160 capability for outdated firmwares +--- + drivers/net/wireless/ath/ath10k/mac.c | 7 ------- + drivers/net/wireless/ath/ath10k/wmi.c | 11 ++++++++--- + 2 files changed, 8 insertions(+), 10 deletions(-) +--- a/drivers/net/wireless/ath/ath10k/mac.c ++++ b/drivers/net/wireless/ath/ath10k/mac.c +@@ -4416,13 +4416,6 @@ static struct ieee80211_sta_vht_cap ath1 + vht_cap.cap |= val; + } + +- /* Currently the firmware seems to be buggy, don't enable 80+80 +- * mode until that's resolved. +- */ +- if ((ar->vht_cap_info & IEEE80211_VHT_CAP_SHORT_GI_160) && +- (ar->vht_cap_info & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) == 0) +- vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; +- + mcs_map = 0; + for (i = 0; i < 8; i++) { + if ((i < ar->num_rf_chains) && (ar->cfg_tx_chainmask & BIT(i))) +--- a/drivers/net/wireless/ath/ath10k/wmi.c ++++ b/drivers/net/wireless/ath/ath10k/wmi.c +@@ -1660,13 +1660,18 @@ void ath10k_wmi_put_wmi_channel(struct w + flags |= WMI_CHAN_FLAG_HT40_PLUS; + if (arg->chan_radar) + flags |= WMI_CHAN_FLAG_DFS; +- ++ ch->band_center_freq2 = 0; + ch->mhz = __cpu_to_le32(arg->freq); + ch->band_center_freq1 = __cpu_to_le32(arg->band_center_freq1); + if (arg->mode == MODE_11AC_VHT80_80) + ch->band_center_freq2 = __cpu_to_le32(arg->band_center_freq2); +- else +- ch->band_center_freq2 = 0; ++ if (arg->mode == MODE_11AC_VHT160) { ++ if (arg->freq < arg->band_center_freq1) ++ ch->band_center_freq1 = __cpu_to_le32(arg->band_center_freq1 - 40); ++ else ++ ch->band_center_freq1 = __cpu_to_le32(arg->band_center_freq1 + 40); ++ ch->band_center_freq2 = __cpu_to_le32(arg->band_center_freq1); ++ } + ch->min_power = arg->min_power; + ch->max_power = arg->max_power; + ch->reg_power = arg->max_reg_power; |