mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 14:13:16 +00:00
38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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
|
|
@@ -2931,7 +2931,8 @@ void ath9k_hw_apply_txpower(struct ath_h
|
|
{
|
|
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;
|
|
|
|
if (!chan)
|
|
return;
|
|
@@ -2939,10 +2940,15 @@ void ath9k_hw_apply_txpower(struct ath_h
|
|
channel = chan->chan;
|
|
chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER);
|
|
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;
|
|
|
|
ah->eep_ops->set_txpower(ah, chan,
|
|
ath9k_regd_get_ctl(reg, chan),
|
|
- 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)
|