Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=61609bc0e4d3bc677ecdccf216a0a77563f52457
Commit: 61609bc0e4d3bc677ecdccf216a0a77563f52457
Parent: 501d857ec93e797d4872d6b9b265b7472b455ddf
Author: Michael Buesch <[EMAIL PROTECTED]>
AuthorDate: Thu Sep 20 22:06:39 2007 +0200
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Oct 10 16:52:23 2007 -0700
[MAC80211]: Add support for setting TX power and radio status
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 <[EMAIL PROTECTED]>
Signed-off-by: John W. Linville <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
net/mac80211/ieee80211.c | 7 ++++++-
net/mac80211/ieee80211_ioctl.c | 34 +++++++++++++++++++++++++++++++++-
2 files changed, 39 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index 4229d15..2385333 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -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;
diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 6ccdde8..b4cce44 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -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 */
-
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