mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-23 21:00:37 +02:00
mac80211: fix antenna gain and add support for user-defined antenna gain configuration
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33585 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
parent
a53ee82639
commit
4efe9d56f1
12
package/mac80211/patches/523-cfg80211_fix_antenna_gain.patch
Normal file
12
package/mac80211/patches/523-cfg80211_fix_antenna_gain.patch
Normal file
@ -0,0 +1,12 @@
|
||||
--- a/net/wireless/reg.c
|
||||
+++ b/net/wireless/reg.c
|
||||
@@ -908,8 +908,7 @@ static void handle_channel(struct wiphy
|
||||
|
||||
chan->beacon_found = false;
|
||||
chan->flags = flags | bw_flags | map_regdom_flags(reg_rule->flags);
|
||||
- chan->max_antenna_gain = min(chan->orig_mag,
|
||||
- (int) MBI_TO_DBI(power_rule->max_antenna_gain));
|
||||
+ chan->max_antenna_gain = (int) MBI_TO_DBI(power_rule->max_antenna_gain);
|
||||
chan->max_reg_power = (int) MBM_TO_DBM(power_rule->max_eirp);
|
||||
if (chan->orig_mpwr) {
|
||||
/*
|
@ -0,0 +1,179 @@
|
||||
--- a/include/net/mac80211.h
|
||||
+++ b/include/net/mac80211.h
|
||||
@@ -851,6 +851,7 @@ enum ieee80211_smps_mode {
|
||||
* the CONF_PS flag is set.
|
||||
*
|
||||
* @power_level: requested transmit power (in dBm)
|
||||
+ * @max_antenna_gain: maximum antenna gain adjusted by user config (in dBi)
|
||||
*
|
||||
* @channel: the channel to tune to
|
||||
* @channel_type: the channel (HT) type
|
||||
@@ -870,6 +871,7 @@ struct ieee80211_conf {
|
||||
u32 flags;
|
||||
int power_level, dynamic_ps_timeout;
|
||||
int max_sleep_period;
|
||||
+ int max_antenna_gain;
|
||||
|
||||
u16 listen_interval;
|
||||
u8 ps_dtim_period;
|
||||
--- a/net/mac80211/main.c
|
||||
+++ b/net/mac80211/main.c
|
||||
@@ -101,7 +101,7 @@ int ieee80211_hw_config(struct ieee80211
|
||||
{
|
||||
struct ieee80211_channel *chan;
|
||||
int ret = 0;
|
||||
- int power;
|
||||
+ int power, ant_gain, max_power;
|
||||
enum nl80211_channel_type channel_type;
|
||||
u32 offchannel_flag;
|
||||
|
||||
@@ -152,19 +152,31 @@ int ieee80211_hw_config(struct ieee80211
|
||||
changed |= IEEE80211_CONF_CHANGE_SMPS;
|
||||
}
|
||||
|
||||
- if (test_bit(SCAN_SW_SCANNING, &local->scanning) ||
|
||||
- test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
|
||||
- test_bit(SCAN_HW_SCANNING, &local->scanning) ||
|
||||
- !local->ap_power_level)
|
||||
- power = chan->max_power;
|
||||
- else
|
||||
- power = min(chan->max_power, local->ap_power_level);
|
||||
+ max_power = chan->max_reg_power;
|
||||
+ if (!test_bit(SCAN_SW_SCANNING, &local->scanning) &&
|
||||
+ !test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) &&
|
||||
+ !test_bit(SCAN_HW_SCANNING, &local->scanning) &&
|
||||
+ local->ap_power_level)
|
||||
+ max_power = min(max_power, local->ap_power_level);
|
||||
+
|
||||
+ ant_gain = chan->max_antenna_gain;
|
||||
+ if (local->user_antenna_gain > 0) {
|
||||
+ if (local->user_antenna_gain > ant_gain) {
|
||||
+ max_power -= local->user_antenna_gain - ant_gain;
|
||||
+ ant_gain = 0;
|
||||
+ } else
|
||||
+ ant_gain -= local->user_antenna_gain;
|
||||
+ }
|
||||
+
|
||||
+ power = min(chan->max_power, max_power);
|
||||
|
||||
if (local->user_power_level >= 0)
|
||||
power = min(power, local->user_power_level);
|
||||
|
||||
- if (local->hw.conf.power_level != power) {
|
||||
+ if (local->hw.conf.power_level != power ||
|
||||
+ local->hw.conf.max_antenna_gain != ant_gain) {
|
||||
changed |= IEEE80211_CONF_CHANGE_POWER;
|
||||
+ local->hw.conf.max_antenna_gain = ant_gain;
|
||||
local->hw.cur_power_level = power;
|
||||
local->hw.conf.power_level = power;
|
||||
}
|
||||
@@ -620,6 +632,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(
|
||||
IEEE80211_RADIOTAP_MCS_HAVE_GI |
|
||||
IEEE80211_RADIOTAP_MCS_HAVE_BW;
|
||||
local->user_power_level = -1;
|
||||
+ local->user_antenna_gain = -1;
|
||||
wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
|
||||
|
||||
INIT_LIST_HEAD(&local->interfaces);
|
||||
--- a/net/mac80211/ieee80211_i.h
|
||||
+++ b/net/mac80211/ieee80211_i.h
|
||||
@@ -1063,6 +1063,7 @@ struct ieee80211_local {
|
||||
|
||||
int user_power_level; /* in dBm */
|
||||
int ap_power_level; /* in dBm */
|
||||
+ int user_antenna_gain; /* in dBi */
|
||||
|
||||
enum ieee80211_smps_mode smps_mode;
|
||||
|
||||
--- a/include/linux/nl80211.h
|
||||
+++ b/include/linux/nl80211.h
|
||||
@@ -1517,6 +1517,8 @@ enum nl80211_attrs {
|
||||
|
||||
NL80211_ATTR_USER_REG_HINT_TYPE,
|
||||
|
||||
+ NL80211_ATTR_WIPHY_ANTENNA_GAIN,
|
||||
+
|
||||
/* add attributes here, update the policy in nl80211.c */
|
||||
|
||||
__NL80211_ATTR_AFTER_LAST,
|
||||
--- a/net/wireless/nl80211.c
|
||||
+++ b/net/wireless/nl80211.c
|
||||
@@ -355,6 +355,7 @@ static const struct nla_policy nl80211_p
|
||||
[NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
|
||||
[NL80211_ATTR_WDEV] = { .type = NLA_U64 },
|
||||
[NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
|
||||
+ [NL80211_ATTR_WIPHY_ANTENNA_GAIN] = { .type = NLA_U32 },
|
||||
};
|
||||
|
||||
/* policy for the key attributes */
|
||||
@@ -1604,6 +1605,22 @@ static int nl80211_set_wiphy(struct sk_b
|
||||
goto bad_res;
|
||||
}
|
||||
|
||||
+ if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_GAIN]) {
|
||||
+ int idx, dbi = 0;
|
||||
+
|
||||
+ if (!rdev->ops->set_antenna_gain) {
|
||||
+ result = -EOPNOTSUPP;
|
||||
+ goto bad_res;
|
||||
+ }
|
||||
+
|
||||
+ idx = NL80211_ATTR_WIPHY_ANTENNA_GAIN;
|
||||
+ dbi = nla_get_u32(info->attrs[idx]);
|
||||
+
|
||||
+ result = rdev->ops->set_antenna_gain(&rdev->wiphy, dbi);
|
||||
+ if (result)
|
||||
+ goto bad_res;
|
||||
+ }
|
||||
+
|
||||
if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
|
||||
info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
|
||||
u32 tx_ant, rx_ant;
|
||||
--- a/net/mac80211/cfg.c
|
||||
+++ b/net/mac80211/cfg.c
|
||||
@@ -1986,6 +1986,19 @@ static int ieee80211_get_tx_power(struct
|
||||
return 0;
|
||||
}
|
||||
|
||||
+static int ieee80211_set_antenna_gain(struct wiphy *wiphy, int dbi)
|
||||
+{
|
||||
+ struct ieee80211_local *local = wiphy_priv(wiphy);
|
||||
+
|
||||
+ if (dbi < 0)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ local->user_antenna_gain = dbi;
|
||||
+ ieee80211_hw_config(local, 0);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
|
||||
const u8 *addr)
|
||||
{
|
||||
@@ -3084,6 +3097,7 @@ struct cfg80211_ops mac80211_config_ops
|
||||
.set_wiphy_params = ieee80211_set_wiphy_params,
|
||||
.set_tx_power = ieee80211_set_tx_power,
|
||||
.get_tx_power = ieee80211_get_tx_power,
|
||||
+ .set_antenna_gain = ieee80211_set_antenna_gain,
|
||||
.set_wds_peer = ieee80211_set_wds_peer,
|
||||
.rfkill_poll = ieee80211_rfkill_poll,
|
||||
CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
|
||||
--- a/include/net/cfg80211.h
|
||||
+++ b/include/net/cfg80211.h
|
||||
@@ -1551,6 +1551,7 @@ struct cfg80211_gtk_rekey_data {
|
||||
* the power passed is in mBm, to get dBm use MBM_TO_DBM().
|
||||
* @get_tx_power: store the current TX power into the dbm variable;
|
||||
* return 0 if successful
|
||||
+ * @set_antenna_gain: set antenna gain to reduce maximum tx power if necessary
|
||||
*
|
||||
* @set_wds_peer: set the WDS peer for a WDS interface
|
||||
*
|
||||
@@ -1750,6 +1751,7 @@ struct cfg80211_ops {
|
||||
int (*set_tx_power)(struct wiphy *wiphy,
|
||||
enum nl80211_tx_power_setting type, int mbm);
|
||||
int (*get_tx_power)(struct wiphy *wiphy, int *dbm);
|
||||
+ int (*set_antenna_gain)(struct wiphy *wiphy, int dbi);
|
||||
|
||||
int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
|
||||
const u8 *addr);
|
@ -0,0 +1,34 @@
|
||||
--- a/drivers/net/wireless/ath/ath.h
|
||||
+++ b/drivers/net/wireless/ath/ath.h
|
||||
@@ -73,6 +73,7 @@ struct ath_regulatory {
|
||||
u16 max_power_level;
|
||||
u16 current_rd;
|
||||
int16_t power_limit;
|
||||
+ int16_t max_antenna_gain;
|
||||
struct reg_dmn_pair_mapping *regpair;
|
||||
};
|
||||
|
||||
--- a/drivers/net/wireless/ath/ath9k/hw.c
|
||||
+++ b/drivers/net/wireless/ath/ath9k/hw.c
|
||||
@@ -2828,7 +2828,7 @@ 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;
|
||||
+ max_gain = chan_pwr - new_pwr + reg->max_antenna_gain * 2;
|
||||
|
||||
ant_gain = get_antenna_gain(ah, chan);
|
||||
if (ant_gain > max_gain)
|
||||
--- a/drivers/net/wireless/ath/ath9k/main.c
|
||||
+++ b/drivers/net/wireless/ath/ath9k/main.c
|
||||
@@ -1263,7 +1263,10 @@ int ath9k_config(struct ieee80211_hw *hw
|
||||
}
|
||||
|
||||
if (changed & IEEE80211_CONF_CHANGE_POWER) {
|
||||
+ struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
|
||||
+
|
||||
ath_dbg(common, CONFIG, "Set power: %d\n", conf->power_level);
|
||||
+ reg->max_antenna_gain = conf->max_antenna_gain;
|
||||
sc->config.txpowlimit = 2 * conf->power_level;
|
||||
ath9k_cmn_update_txpow(ah, sc->curtxpow,
|
||||
sc->config.txpowlimit, &sc->curtxpow);
|
@ -11,7 +11,7 @@
|
||||
union {
|
||||
--- a/net/mac80211/cfg.c
|
||||
+++ b/net/mac80211/cfg.c
|
||||
@@ -2149,9 +2149,20 @@ static int ieee80211_set_bitrate_mask(st
|
||||
@@ -2162,9 +2162,20 @@ static int ieee80211_set_bitrate_mask(st
|
||||
}
|
||||
|
||||
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
|
||||
@ -34,7 +34,7 @@
|
||||
return 0;
|
||||
--- a/include/net/mac80211.h
|
||||
+++ b/include/net/mac80211.h
|
||||
@@ -3719,7 +3719,7 @@ void ieee80211_send_bar(struct ieee80211
|
||||
@@ -3721,7 +3721,7 @@ void ieee80211_send_bar(struct ieee80211
|
||||
* (deprecated; this will be removed once drivers get updated to use
|
||||
* rate_idx_mask)
|
||||
* @rate_idx_mask: user-requested (legacy) rate mask
|
||||
@ -43,7 +43,7 @@
|
||||
* @bss: whether this frame is sent out in AP or IBSS mode
|
||||
*/
|
||||
struct ieee80211_tx_rate_control {
|
||||
@@ -3731,7 +3731,7 @@ struct ieee80211_tx_rate_control {
|
||||
@@ -3733,7 +3733,7 @@ struct ieee80211_tx_rate_control {
|
||||
bool rts, short_preamble;
|
||||
u8 max_rate_idx;
|
||||
u32 rate_idx_mask;
|
||||
|
Loading…
Reference in New Issue
Block a user