cac1a4be66
several people reported this bug to be causing drop out issues Signed-off-by: John Crispin <john@phrozen.org>
50 lines
2.2 KiB
Diff
50 lines
2.2 KiB
Diff
From: Sebastian Gottschall <s.gottschall@dd-wrt.com>
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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
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likelly for backward compatiblity with vht80 only capable clients.
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this patch adjusts the handling to get vht160 to work again with official qca firmwares newer than 3.3
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consider that this patch will not work with older firmwares anymore. to avoid undefined behaviour this we disable vht160 capability for outdated firmwares
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---
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drivers/net/wireless/ath/ath10k/mac.c | 7 -------
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drivers/net/wireless/ath/ath10k/wmi.c | 11 ++++++++---
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2 files changed, 8 insertions(+), 10 deletions(-)
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--- a/drivers/net/wireless/ath/ath10k/mac.c
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+++ b/drivers/net/wireless/ath/ath10k/mac.c
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@@ -4415,13 +4415,6 @@ static struct ieee80211_sta_vht_cap ath1
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vht_cap.cap |= val;
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}
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- /* Currently the firmware seems to be buggy, don't enable 80+80
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- * mode until that's resolved.
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- */
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- if ((ar->vht_cap_info & IEEE80211_VHT_CAP_SHORT_GI_160) &&
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- (ar->vht_cap_info & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) == 0)
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- vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
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-
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mcs_map = 0;
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for (i = 0; i < 8; i++) {
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if ((i < ar->num_rf_chains) && (ar->cfg_tx_chainmask & BIT(i)))
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--- a/drivers/net/wireless/ath/ath10k/wmi.c
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+++ b/drivers/net/wireless/ath/ath10k/wmi.c
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@@ -1660,13 +1660,18 @@ void ath10k_wmi_put_wmi_channel(struct w
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flags |= WMI_CHAN_FLAG_HT40_PLUS;
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if (arg->chan_radar)
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flags |= WMI_CHAN_FLAG_DFS;
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-
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+ ch->band_center_freq2 = 0;
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ch->mhz = __cpu_to_le32(arg->freq);
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ch->band_center_freq1 = __cpu_to_le32(arg->band_center_freq1);
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if (arg->mode == MODE_11AC_VHT80_80)
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ch->band_center_freq2 = __cpu_to_le32(arg->band_center_freq2);
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- else
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- ch->band_center_freq2 = 0;
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+ if (arg->mode == MODE_11AC_VHT160) {
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+ if (arg->freq < arg->band_center_freq1)
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+ ch->band_center_freq1 = __cpu_to_le32(arg->band_center_freq1 - 40);
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+ else
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+ ch->band_center_freq1 = __cpu_to_le32(arg->band_center_freq1 + 40);
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+ ch->band_center_freq2 = __cpu_to_le32(arg->band_center_freq1);
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+ }
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ch->min_power = arg->min_power;
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ch->max_power = arg->max_power;
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ch->reg_power = arg->max_reg_power;
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