2016-05-14 15:38:56 +00:00
|
|
|
From: Felix Fietkau <nbd@nbd.name>
|
|
|
|
|
Date: Sat, 14 May 2016 14:51:02 +0200
|
|
|
|
|
Subject: [PATCH] Revert "ath9k: interpret requested txpower in EIRP
|
|
|
|
|
domain"
|
|
|
|
|
|
|
|
|
|
This reverts commit 71f5137bf010c6faffab50c0ec15374c59c4a411.
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
--- a/drivers/net/wireless/ath/ath9k/hw.c
|
|
|
|
|
+++ b/drivers/net/wireless/ath/ath9k/hw.c
|
2021-10-09 14:25:30 +00:00
|
|
|
@@ -2975,7 +2975,8 @@ void ath9k_hw_apply_txpower(struct ath_h
|
2016-05-14 15:38:56 +00:00
|
|
|
{
|
|
|
|
|
struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
|
|
|
|
|
struct ieee80211_channel *channel;
|
|
|
|
|
- int chan_pwr, new_pwr;
|
|
|
|
|
+ int chan_pwr, new_pwr, max_gain;
|
|
|
|
|
+ int ant_gain, ant_reduction = 0;
|
2018-09-23 16:02:35 +00:00
|
|
|
u16 ctl = NO_CTL;
|
2016-05-14 15:38:56 +00:00
|
|
|
|
|
|
|
|
if (!chan)
|
2021-10-09 14:25:30 +00:00
|
|
|
@@ -2987,9 +2988,14 @@ void ath9k_hw_apply_txpower(struct ath_h
|
2016-05-14 15:38:56 +00:00
|
|
|
channel = chan->chan;
|
2019-08-03 10:30:38 +00:00
|
|
|
chan_pwr = min_t(int, channel->max_power * 2, MAX_COMBINED_POWER);
|
2016-05-14 15:38:56 +00:00
|
|
|
new_pwr = min_t(int, chan_pwr, reg->power_limit);
|
|
|
|
|
+ max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
|
|
|
|
|
+
|
|
|
|
|
+ ant_gain = get_antenna_gain(ah, chan);
|
|
|
|
|
+ if (ant_gain > max_gain)
|
|
|
|
|
+ ant_reduction = ant_gain - max_gain;
|
|
|
|
|
|
2018-09-23 16:02:35 +00:00
|
|
|
ah->eep_ops->set_txpower(ah, chan, ctl,
|
2016-05-14 15:38:56 +00:00
|
|
|
- get_antenna_gain(ah, chan), new_pwr, test);
|
|
|
|
|
+ ant_reduction, new_pwr, test);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
|
