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nl80211: Export available antennas 

Export the information which antennas are available for configuration as TX or
RX antennas via nl80211.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf 2010-12-16 11:30:28 +09:00 committed by John W. Linville
parent 7f531e03ab
commit 39fd5de447
2 changed files with 14 additions and 0 deletions
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9
include/linux/nl80211.h
View File

@ -858,6 +858,12 @@ enum nl80211_commands {
* the hardware should not be configured to receive on this antenna.
* For a more detailed descripton see @NL80211_ATTR_WIPHY_ANTENNA_TX.
*
* @NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX: Bitmap of antennas which are available
* for configuration as TX antennas via the above parameters.
*
* @NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX: Bitmap of antennas which are available
* for configuration as RX antennas via the above parameters.
*
* @NL80211_ATTR_MCAST_RATE: Multicast tx rate (in 100 kbps) for IBSS
*
* @NL80211_ATTR_OFFCHANNEL_TX_OK: For management frame TX, the frame may be
@ -1059,6 +1065,9 @@ enum nl80211_attrs {
NL80211_ATTR_MESH_SETUP,
NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,

5
net/wireless/nl80211.c
View File

@ -605,6 +605,11 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
dev->wiphy.available_antennas_tx);
NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
dev->wiphy.available_antennas_rx);
if ((dev->wiphy.available_antennas_tx ||
dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
u32 tx_ant = 0, rx_ant = 0;