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authorPhoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>2014-02-17 11:34:10 +0100
committerDavid S. Miller <davem@davemloft.net>2014-02-17 16:42:38 -0500
commit84dda3c648fd55898064d76366b14f964cdc9d16 (patch)
tree5c3f247176a57eedbf854ade71da6f8ff8d7392e /net/mac802154
parent643e53c20a6ae78149f75861f260d0ca6d9a17e3 (diff)
downloadlinux-84dda3c648fd55898064d76366b14f964cdc9d16.tar.bz2
ieee802154: add support for listen-before-talk in wpan_phy
Listen-before-talk is an alternative to CSMA in uncoordinated networks and prescribed by european regulations if one wants to have a device with radio duty cycles above 10% (or less in some bands). Add a phy property to enable/disable LBT in the phy, including support in the at86rf230 driver for RF212 chips. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac802154')
-rw-r--r--net/mac802154/ieee802154_dev.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/net/mac802154/ieee802154_dev.c b/net/mac802154/ieee802154_dev.c
index 9eb49e0886a4..56338c8cfc33 100644
--- a/net/mac802154/ieee802154_dev.c
+++ b/net/mac802154/ieee802154_dev.c
@@ -175,6 +175,16 @@ static int mac802154_set_txpower(struct wpan_phy *phy, int db)
return priv->ops->set_txpower(&priv->hw, db);
}
+static int mac802154_set_lbt(struct wpan_phy *phy, bool on)
+{
+ struct mac802154_priv *priv = wpan_phy_priv(phy);
+
+ if (!priv->ops->set_lbt)
+ return -ENOTSUPP;
+
+ return priv->ops->set_lbt(&priv->hw, on);
+}
+
struct ieee802154_dev *
ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops)
{
@@ -253,6 +263,7 @@ int ieee802154_register_device(struct ieee802154_dev *dev)
priv->phy->add_iface = mac802154_add_iface;
priv->phy->del_iface = mac802154_del_iface;
priv->phy->set_txpower = mac802154_set_txpower;
+ priv->phy->set_lbt = mac802154_set_lbt;
rc = wpan_phy_register(priv->phy);
if (rc < 0)