openwrtv3/package/kernel/mac80211/patches/973-ath10k_fix-band_center_freq-handling-for-VHT160-in-recent-firmwares.patch
Ansuel Smith 2dcd955aea mac80211: backport and update patches for ath10k
This commit refreshes and updates the VHT160 ath10k support fix patches
and adds a number of backports from ath-next:

 * 8ed05ed06fca ath10k: handle tdls peer events
 * 229329ff345f ath10k: wmi: modify svc bitmap parsing for wcn3990
 * 14d65775687c ath10k: advertise TDLS wider bandwidth support for 5GHz
 * bc64d05220f3 ath10k: debugfs support to get final TPC stats for 10.4 variants
 * 8b2d93dd2261 ath10k: Fix kernel panic while using worker (ath10k_sta_rc_update_wk)
 * 4b190675ad06 ath10k: fix kernel panic while reading tpc_stats
 * be8cce96f14d ath10k: add support to configure channel dwell time
 * f40105e67478 ath: add support to get the detected radar specifications
 * 6f6eb1bcbeff ath10k: DFS Host Confirmation
 * 260e629bbf44 ath10k: fix memory leak of tpc_stats
 * 38441fb6fcbb ath10k: support use of channel 173
 * 2e9bcd0d7324 ath10k: fix spectral scan for QCA9984 and QCA9888 chipsets

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
[move backported patches in the 3xx number space, bring in upstream order,
 replace incomplete patch files with git format-patch ones, rewrite commit
 message, fix subject]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2018-07-22 22:25:33 +02:00

53 lines
2.3 KiB
Diff

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 to avoid undefined behaviour this we disable vht160 capability for outdated firmwares
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
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;