diff options
| author | Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> | 2014-02-17 11:34:10 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-17 16:42:38 -0500 |
| commit | 84dda3c648fd55898064d76366b14f964cdc9d16 (patch) | |
| tree | 5c3f247176a57eedbf854ade71da6f8ff8d7392e /drivers/net/ieee802154 | |
| parent | 643e53c20a6ae78149f75861f260d0ca6d9a17e3 (diff) | |
| download | linux-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 'drivers/net/ieee802154')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index 04a995dad593..3d40c2350261 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -152,7 +152,7 @@ static inline int is_rf212(struct at86rf230_local *local) #define SR_RESERVED_17_5 0x17, 0x08, 3 #define SR_AACK_UPLD_RES_FT 0x17, 0x10, 4 #define SR_AACK_FLTR_RES_FT 0x17, 0x20, 5 -#define SR_RESERVED_17_2 0x17, 0x40, 6 +#define SR_CSMA_LBT_MODE 0x17, 0x40, 6 #define SR_RESERVED_17_1 0x17, 0x80, 7 #define RG_FTN_CTRL (0x18) #define SR_RESERVED_18_2 0x18, 0x7f, 0 @@ -786,6 +786,14 @@ at86rf212_set_txpower(struct ieee802154_dev *dev, int db) return 0; } +static int +at86rf212_set_lbt(struct ieee802154_dev *dev, bool on) +{ + struct at86rf230_local *lp = dev->priv; + + return at86rf230_write_subreg(lp, SR_CSMA_LBT_MODE, on); +} + static struct ieee802154_ops at86rf230_ops = { .owner = THIS_MODULE, .xmit = at86rf230_xmit, @@ -805,6 +813,7 @@ static struct ieee802154_ops at86rf212_ops = { .stop = at86rf230_stop, .set_hw_addr_filt = at86rf230_set_hw_addr_filt, .set_txpower = at86rf212_set_txpower, + .set_lbt = at86rf212_set_lbt, }; static void at86rf230_irqwork(struct work_struct *work) |