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net: openthread: Add support for HW CSMA CA

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Forward CSMA CA capability to OpenThread and use CSMA CA enabled
transfer if supported.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit is contained in:
Robert Lubos 2020-03-16 13:49:01 +01:00 • committed by Jukka Rissanen
commit 108820aafb
1 changed files with 17 additions and 3 deletions
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20
subsys/net/lib/openthread/platform/radio.c
View file

@ -189,9 +189,18 @@ void platformRadioProcess(otInstance *aInstance)
radio_api->set_txpower(radio_dev, tx_power);
if (sTransmitFrame.mInfo.mTxInfo.mCsmaCaEnabled) {
if (radio_api->cca(radio_dev) ||
radio_api->tx(radio_dev, IEEE802154_TX_MODE_DIRECT,
tx_pkt, tx_payload)) {
if (radio_api->get_capabilities(radio_dev) &
IEEE802154_HW_CSMA) {
if (radio_api->tx(radio_dev,
IEEE802154_TX_MODE_CSMA_CA,
tx_pkt, tx_payload) != 0) {
result =
OT_ERROR_CHANNEL_ACCESS_FAILURE;
}
} else if (radio_api->cca(radio_dev) != 0 ||
radio_api->tx(radio_dev,
IEEE802154_TX_MODE_DIRECT,
tx_pkt, tx_payload) != 0) {
result = OT_ERROR_CHANNEL_ACCESS_FAILURE;
}
} else {
@ -422,6 +431,11 @@ otRadioCaps otPlatRadioGetCaps(otInstance *aInstance)
caps |= OT_RADIO_CAPS_ENERGY_SCAN;
}
if (radio_caps & IEEE802154_HW_CSMA) {
caps |= OT_RADIO_CAPS_CSMA_BACKOFF |
OT_RADIO_CAPS_TRANSMIT_RETRIES;
}
return caps;
}