diff options
| author | Alexander Aring <alex.aring@gmail.com> | 2014-10-07 10:38:27 +0200 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-10-25 07:56:22 +0200 |
| commit | 850f43acb1869edf2a8b355330819412066d6fa2 (patch) | |
| tree | 668e5e840f1cc7c10423e70c785ad5e6036d1e43 /drivers/net/ieee802154 | |
| parent | d06c21990fbbca644a31a3c851c22a8d1f5d0e66 (diff) | |
| download | lwn-850f43acb1869edf2a8b355330819412066d6fa2.tar.gz lwn-850f43acb1869edf2a8b355330819412066d6fa2.zip | |
at86rf230: correct aret lifs and sifs handling
This patch adds lifs/sifs handling only if max_frame_retries is above
zero. The at86rf2xx datasheets says nothing about phy lifs/sifs
handling. I asked the atmel support and they said lifs/sifs is done
by phy when max_frame_retries is above zero.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/net/ieee802154')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index 44d2f1de31e0..2a25324d3a64 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -89,6 +89,7 @@ struct at86rf230_local { struct at86rf230_state_change irq; bool tx_aret; + s8 max_frame_retries; bool is_tx; /* spinlock for is_tx protection */ spinlock_t lock; @@ -1001,6 +1002,9 @@ at86rf230_xmit(struct ieee802154_dev *dev, struct sk_buff *skb) return -ETIMEDOUT; } + if (lp->max_frame_retries > 0) + return 0; + /* Interfame spacing time, which is phy depend. * TODO * Move this handling in MAC 802.15.4 layer. @@ -1230,6 +1234,7 @@ at86rf230_set_frame_retries(struct ieee802154_dev *dev, s8 retries) return -EINVAL; lp->tx_aret = retries >= 0; + lp->max_frame_retries = retries; if (retries >= 0) rc = at86rf230_write_subreg(lp, SR_MAX_FRAME_RETRIES, retries); |