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- From: Sebastian Gottschall <[email protected]>
- 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 to avoid undefined behaviour this we disable vht160 capability for outdated firmwares
- Signed-off-by: Sebastian Gottschall <[email protected]>
- v2: fix trailing whitespace issue and fix some typos within the commit note
- ---
- 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
- @@ -4445,13 +4445,6 @@ 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
- @@ -1672,13 +1672,18 @@ 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;
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