openwrt/package/kernel/mac80211/patches/ath10k/980-ath10k-fix-max-antenna-gain-unit.patch
Ansuel Smith 3394af677c mac80211: split ath patch in dedicated subdir
The ath patch number is already large and adding other patch for ath11k
will add more confusion with the patch numbering.
Since the support of ath11k based device is imminent, prepare the mac80211
ath patch dir and split it in the dedicated ath5k, ath9k, ath10k and ath11k
(empty for now).

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2021-06-04 22:44:40 +02:00

50 lines
2.1 KiB
Diff

From: Sven Eckelmann <seckelmann@datto.com>
Date: Tue, 11 Jun 2019 13:58:35 +0200
Subject: ath10k: fix max antenna gain unit
Most of the txpower for the ath10k firmware is stored as twicepower (0.5 dB
steps). This isn't the case for max_antenna_gain - which is still expected
by the firmware as dB.
The firmware is converting it from dB to the internal (twicepower)
representation when it calculates the limits of a channel. This can be seen
in tpc_stats when configuring "12" as max_antenna_gain. Instead of the
expected 12 (6 dB), the tpc_stats shows 24 (12 dB).
Tested on QCA9888 and IPQ4019 with firmware 10.4-3.5.3-00057.
Fixes: 02256930d9b8 ("ath10k: use proper tx power unit")
Signed-off-by: Sven Eckelmann <seckelmann@datto.com>
Forwarded: https://patchwork.kernel.org/patch/10986723/
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1038,7 +1038,7 @@ static int ath10k_monitor_vdev_start(str
arg.channel.min_power = 0;
arg.channel.max_power = channel->max_power * 2;
arg.channel.max_reg_power = channel->max_reg_power * 2;
- arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
+ arg.channel.max_antenna_gain = channel->max_antenna_gain;
reinit_completion(&ar->vdev_setup_done);
reinit_completion(&ar->vdev_delete_done);
@@ -1484,7 +1484,7 @@ static int ath10k_vdev_start_restart(str
arg.channel.min_power = 0;
arg.channel.max_power = chandef->chan->max_power * 2;
arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
- arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
+ arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain;
if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
arg.ssid = arvif->u.ap.ssid;
@@ -3255,7 +3255,7 @@ static int ath10k_update_channel_list(st
ch->min_power = 0;
ch->max_power = channel->max_power * 2;
ch->max_reg_power = channel->max_reg_power * 2;
- ch->max_antenna_gain = channel->max_antenna_gain * 2;
+ ch->max_antenna_gain = channel->max_antenna_gain;
ch->reg_class_id = 0; /* FIXME */
/* FIXME: why use only legacy modes, why not any