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at86rf230: change state change if from trx_off 

If a transmit ends in a calibration which means the transceiver do a
TRX_OFF state change, we can directly change into TX_ARET state instead
doing a TX_ON to TX_ARET statechange.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring 2015-04-30 17:45:02 +02:00 committed by Marcel Holtmann
parent 2f8cdd9509
commit 8500920317
1 changed files with 18 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/net/ieee802154/at86rf230.c
View File

@ -95,6 +95,7 @@ struct at86rf230_local {
unsigned long cal_timeout;
s8 max_frame_retries;
bool is_tx;
bool is_tx_from_off;
u8 tx_retry;
struct sk_buff *tx_skb;
struct at86rf230_state_change tx;
@ -991,12 +992,21 @@ at86rf230_xmit_start(void *context)
* are in STATE_TX_ON. The pfad differs here, so we change
* the complete handler.
*/
if (lp->tx_aret)
at86rf230_async_state_change(lp, ctx, STATE_TX_ON,
at86rf230_xmit_tx_on, false);
else
if (lp->tx_aret) {
if (lp->is_tx_from_off) {
lp->is_tx_from_off = false;
at86rf230_async_state_change(lp, ctx, STATE_TX_ARET_ON,
at86rf230_xmit_tx_on,
false);
} else {
at86rf230_async_state_change(lp, ctx, STATE_TX_ON,
at86rf230_xmit_tx_on,
false);
}
} else {
at86rf230_async_state_change(lp, ctx, STATE_TX_ON,
at86rf230_write_frame, false);
}
}
static int
@ -1015,11 +1025,13 @@ at86rf230_xmit(struct ieee802154_hw *hw, struct sk_buff *skb)
* to TX_ON, the lp->cal_timeout should be reinit by state_delay
* function then to start in the next 5 minutes.
*/
if (time_is_before_jiffies(lp->cal_timeout))
if (time_is_before_jiffies(lp->cal_timeout)) {
lp->is_tx_from_off = true;
at86rf230_async_state_change(lp, ctx, STATE_TRX_OFF,
at86rf230_xmit_start, false);
else
} else {
at86rf230_xmit_start(ctx);
}
return 0;
}