diff options
| author | Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> | 2014-02-17 14:34:08 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-18 01:42:38 +0400 |
| commit | 9b2777d6089bcd7fb035847f907280560fe233c8 (patch) | |
| tree | 868e579924e3c6cd154996acfef67fb9157e8b26 /net/mac802154 | |
| parent | 5b520bbb538da7f7122b1e5dc85f2b4c592d4781 (diff) | |
| download | linux-9b2777d6089bcd7fb035847f907280560fe233c8.tar.xz | |
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 <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.c | 11 |
1 files changed, 11 insertions, 0 deletions
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) |