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>
This commit is contained in:
Phoebe Buckheister
2014-02-17 11:34:10 +01:00
committed by David S. Miller
parent 643e53c20a
commit 84dda3c648
7 changed files with 78 additions and 13 deletions

View File

@@ -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)