From 9b2777d6089bcd7fb035847f907280560fe233c8 Mon Sep 17 00:00:00 2001 From: Phoebe Buckheister Date: Mon, 17 Feb 2014 11:34:08 +0100 Subject: ieee802154: add TX power control to wpan_phy Replace the current u8 transmit_power in wpan_phy with s8 transmit_power. The u8 field contained the actual tx power and a tolerance field, which no physical radio every used. Adjust sysfs entries to keep compatibility with userspace, give tolerances of +-1dB statically there. This patch only adds support for this in the at86rf230 driver and the RF212 chip. Configuration calculation for RF212 is also somewhat basic, but does the job - the RF212 datasheet gives a large table with suggested values for combinations of TX power and page/channel, if this does not work well, we might have to copy the whole table. Signed-off-by: Phoebe Buckheister Signed-off-by: David S. Miller --- net/mac802154/ieee802154_dev.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'net/mac802154/ieee802154_dev.c') diff --git a/net/mac802154/ieee802154_dev.c b/net/mac802154/ieee802154_dev.c index 52ae6646a411..9eb49e0886a4 100644 --- a/net/mac802154/ieee802154_dev.c +++ b/net/mac802154/ieee802154_dev.c @@ -165,6 +165,16 @@ err: return ERR_PTR(err); } +static int mac802154_set_txpower(struct wpan_phy *phy, int db) +{ + struct mac802154_priv *priv = wpan_phy_priv(phy); + + if (!priv->ops->set_txpower) + return -ENOTSUPP; + + return priv->ops->set_txpower(&priv->hw, db); +} + struct ieee802154_dev * ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops) { @@ -242,6 +252,7 @@ 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; rc = wpan_phy_register(priv->phy); if (rc < 0) -- cgit v1.2.3