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drivers: ieee802154_nrf5: Add Kconfig to configure FCS inclusion policy

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Some 802.15.4 L2 implementations expect that FCS length is included in
the overall packet length while others not. Allow to configure this
behavior, based on the selected upper layer.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit is contained in:
Robert Lubos 2021-11-18 17:17:10 +01:00 • committed by Anas Nashif
commit 5cf235e601
2 changed files with 10 additions and 3 deletions
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5
drivers/ieee802154/ieee802154_nrf5.c
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@ -150,8 +150,7 @@ static void nrf5_rx_thread(void *arg1, void *arg2, void *arg3)
* The last 2 bytes contain LQI or FCS, depending if
* automatic CRC handling is enabled or not, respectively.
*/
if (IS_ENABLED(CONFIG_IEEE802154_RAW_MODE) ||
IS_ENABLED(CONFIG_NET_L2_OPENTHREAD)) {
if (IS_ENABLED(CONFIG_IEEE802154_NRF5_FCS_IN_LENGTH)) {
pkt_len = rx_frame->psdu[0];
} else {
pkt_len = rx_frame->psdu[0] - NRF5_FCS_LENGTH;
@ -374,7 +373,7 @@ static int handle_ack(struct nrf5_802154_data *nrf5_radio)
struct net_pkt *ack_pkt;
int err = 0;
if (IS_ENABLED(CONFIG_IEEE802154_RAW_MODE) || IS_ENABLED(CONFIG_NET_L2_OPENTHREAD)) {
if (IS_ENABLED(CONFIG_IEEE802154_NRF5_FCS_IN_LENGTH)) {
ack_len = nrf5_radio->ack_frame.psdu[0];
} else {
ack_len = nrf5_radio->ack_frame.psdu[0] - NRF5_FCS_LENGTH;