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[MAC80211]: Add support for setting TX power and radio status

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This adds support for disabling the radio and setting the TXpower
through wext.
This also fixes the prism TXpower ioctl (It always overwrote the TXpower
value in ieee80211_hw_config())

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Buesch 2007-09-20 22:06:39 +02:00 committed by David S. Miller
parent 501d857ec9
commit 61609bc0e4
2 changed files with 39 additions and 2 deletions
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7
net/mac80211/ieee80211.c
View File

@ -704,7 +704,12 @@ int ieee80211_hw_config(struct ieee80211_local *local)
local->hw.conf.channel = chan->chan;
local->hw.conf.channel_val = chan->val;
local->hw.conf.power_level = chan->power_level;
if (!local->hw.conf.power_level) {
local->hw.conf.power_level = chan->power_level;
} else {
local->hw.conf.power_level = min(chan->power_level,
local->hw.conf.power_level);
}
local->hw.conf.freq = chan->freq;
local->hw.conf.phymode = mode->mode;
local->hw.conf.antenna_max = chan->antenna_max;

34
net/mac80211/ieee80211_ioctl.c
View File

@ -666,6 +666,38 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
return 0;
}
static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bool need_reconfig = 0;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
return -EINVAL;
if (data->txpower.flags & IW_TXPOW_RANGE)
return -EINVAL;
if (!data->txpower.fixed)
return -EINVAL;
if (local->hw.conf.power_level != data->txpower.value) {
local->hw.conf.power_level = data->txpower.value;
need_reconfig = 1;
}
if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
local->hw.conf.radio_enabled = !(data->txpower.disabled);
need_reconfig = 1;
}
if (need_reconfig) {
ieee80211_hw_config(local);
/* The return value of hw_config is not of big interest here,
* as it doesn't say that it failed because of _this_ config
* change or something else. Ignore it. */
}
return 0;
}
static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
@ -1339,7 +1371,7 @@ static const iw_handler ieee80211_handler[] =
(iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
(iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
(iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
(iw_handler) NULL, /* SIOCSIWTXPOW */
(iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
(iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
(iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
(iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */