76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/* ieee802154_nrf5.h - nRF5 802.15.4 driver */
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/*
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* Copyright (c) 2017 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_
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#define ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_
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#include "nrf_802154_config.h"
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#define NRF5_FCS_LENGTH (2)
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#define NRF5_PSDU_LENGTH (125)
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#define NRF5_PHR_LENGTH (1)
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struct nrf5_802154_rx_frame {
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void *fifo_reserved; /* 1st word reserved for use by fifo. */
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u8_t *psdu; /* Pointer to a received frame. */
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u8_t lqi; /* Last received frame LQI value. */
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s8_t rssi; /* Last received frame RSSI value. */
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};
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struct nrf5_802154_data {
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/* Pointer to the network interface. */
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struct net_if *iface;
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/* 802.15.4 HW address. */
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u8_t mac[8];
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/* RX thread stack. */
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K_THREAD_STACK_MEMBER(rx_stack, CONFIG_IEEE802154_NRF5_RX_STACK_SIZE);
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/* RX thread control block. */
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struct k_thread rx_thread;
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/* RX fifo queue. */
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struct k_fifo rx_fifo;
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/* Buffers for passing received frame pointers and data to the
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* RX thread via rx_fifo object.
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*/
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struct nrf5_802154_rx_frame rx_frames[NRF_802154_RX_BUFFERS];
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/* CCA complete sempahore. Unlocked when CCA is complete. */
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struct k_sem cca_wait;
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/* CCA result. Holds information whether channel is free or not. */
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bool channel_free;
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/* TX synchronization semaphore. Unlocked when frame has been
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* sent or send procedure failed.
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*/
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struct k_sem tx_wait;
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/* TX buffer. First byte is PHR (length), remaining bytes are
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* MPDU data.
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*/
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u8_t tx_psdu[NRF5_PHR_LENGTH + NRF5_PSDU_LENGTH + NRF5_FCS_LENGTH];
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/* TX result, updated in radio transmit callbacks. */
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u8_t tx_result;
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/* A buffer for the received ACK frame. psdu pointer be NULL if no
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* ACK was requested/received.
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*/
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struct nrf5_802154_rx_frame ack_frame;
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/* Callback handler of the currently ongoing energy scan.
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* It shall be NULL if energy scan is not in progress.
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*/
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energy_scan_done_cb_t energy_scan_done;
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};
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#endif /* ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_ */
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