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ieee802154_nrf5.h
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/* ieee802154_nrf5.h - nRF5 802.15.4 driver */
/*
* Copyright (c) 2017-2023 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_
#define ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_
#include <zephyr/net/ieee802154_radio.h>
#define NRF5_PHR_LENGTH (1)
struct nrf5_802154_rx_frame {
void *fifo_reserved; /* 1st word reserved for use by fifo. */
uint8_t *psdu; /* Pointer to a received frame. */
uint64_t time; /* RX timestamp. */
uint8_t lqi; /* Last received frame LQI value. */
int8_t rssi; /* Last received frame RSSI value. */
bool ack_fpb; /* FPB value in ACK sent for the received frame. */
};
struct nrf5_802154_data {
/* Pointer to the network interface. */
struct net_if *iface;
/* 802.15.4 HW address. */
uint8_t mac[8];
/* RX thread stack. */
K_KERNEL_STACK_MEMBER(rx_stack, CONFIG_IEEE802154_NRF5_RX_STACK_SIZE);
/* RX thread control block. */
struct k_thread rx_thread;
/* RX fifo queue. */
struct k_fifo rx_fifo;
/* Buffers for passing received frame pointers and data to the
* RX thread via rx_fifo object.
*/
struct nrf5_802154_rx_frame rx_frames[CONFIG_NRF_802154_RX_BUFFERS];
/* Frame pending bit value in ACK sent for the last received frame. */
bool last_frame_ack_fpb;
/* CCA complete semaphore. Unlocked when CCA is complete. */
struct k_sem cca_wait;
/* CCA result. Holds information whether channel is free or not. */
bool channel_free;
/* TX synchronization semaphore. Unlocked when frame has been
* sent or send procedure failed.
*/
struct k_sem tx_wait;
/* TX buffer. First byte is PHR (length), remaining bytes are
* MPDU data.
*/
uint8_t tx_psdu[NRF5_PHR_LENGTH + IEEE802154_MAX_PHY_PACKET_SIZE];
/* TX result, updated in radio transmit callbacks. */
uint8_t tx_result;
/* A buffer for the received ACK frame. psdu pointer be NULL if no
* ACK was requested/received.
*/
struct nrf5_802154_rx_frame ack_frame;
/* Callback handler of the currently ongoing energy scan.
* It shall be NULL if energy scan is not in progress.
*/
energy_scan_done_cb_t energy_scan_done;
/* Callback handler to notify of any important radio events.
* Can be NULL if event notification is not needed.
*/
ieee802154_event_cb_t event_handler;
/* Capabilities of the network interface. */
enum ieee802154_hw_caps capabilities;
/* Indicates if currently processed TX frame is secured. */
bool tx_frame_is_secured;
/* Indicates if currently processed TX frame has dynamic data updated. */
bool tx_frame_mac_hdr_rdy;
#if defined(CONFIG_IEEE802154_NRF5_MULTIPLE_CCA)
/* The maximum number of extra CCA attempts to be performed before transmission. */
uint8_t max_extra_cca_attempts;
#endif
};
#endif /* ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_ */