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ieee802154: kw41z: fix sync issue in CCA sequence

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- set state to IDLE if TMR1 expires, but CCA reports channel as free
- no need to check for CCABFRTX, as the hardware isn't setup to do
CCA before TX

Signed-off-by: Bogdan Davidoaia <bogdan.davidoaia@linaro.org>
This commit is contained in:
Bogdan Davidoaia 2017-05-02 16:45:44 +03:00 committed by Anas Nashif
parent 5dc68e3855
commit cbe030d444
1 changed files with 2 additions and 2 deletions
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4
drivers/ieee802154/ieee802154_kw41z.c
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@ -412,6 +412,7 @@ static void kw41z_isr(int unused)
if (state == KW41Z_STATE_CCA &&
!(irqsts & ZLL_IRQSTS_CCA_MASK)) {
kw41z_set_seq_state(KW41Z_STATE_IDLE);
atomic_set(&kw41z_context_data.seq_retval, 0);
restart_rx = 0;
} else {
@ -453,8 +454,7 @@ static void kw41z_isr(int unused)
kw41z_tmr2_disable();
case KW41Z_STATE_TX:
SYS_LOG_DBG("TX seq done");
if ((ZLL->PHY_CTRL & ZLL_PHY_CTRL_CCABFRTX_MASK) &&
(irqsts & ZLL_IRQSTS_CCA_MASK)) {
if (irqsts & ZLL_IRQSTS_CCA_MASK) {
atomic_set(&kw41z_context_data.seq_retval,
-EBUSY);
} else {