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 /include/net/wpan-phy.h | |
| 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 'include/net/wpan-phy.h')
| -rw-r--r-- | include/net/wpan-phy.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h index b52bda8d13b1..47fc0c1bc3c7 100644 --- a/include/net/wpan-phy.h +++ b/include/net/wpan-phy.h @@ -37,14 +37,14 @@ struct wpan_phy { struct mutex pib_lock; /* - * This is a PIB according to 802.15.4-2006. + * This is a PIB according to 802.15.4-2011. * We do not provide timing-related variables, as they * aren't used outside of driver */ u8 current_channel; u8 current_page; u32 channels_supported[32]; - u8 transmit_power; + s8 transmit_power; u8 cca_mode; struct device dev; @@ -54,6 +54,8 @@ struct wpan_phy { const char *name, int type); void (*del_iface)(struct wpan_phy *phy, struct net_device *dev); + int (*set_txpower)(struct wpan_phy *phy, int db); + char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); }; |