| /* ieee802154_nrf5.h - nRF5 802.15.4 driver */ |
| |
| /* |
| * Copyright (c) 2017 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #ifndef ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_ |
| #define ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_ |
| |
| #include "nrf_802154_config.h" |
| |
| #define NRF5_FCS_LENGTH (2) |
| #define NRF5_PSDU_LENGTH (125) |
| #define NRF5_PHR_LENGTH (1) |
| |
| struct nrf5_802154_rx_frame { |
| void *fifo_reserved; /* 1st word reserved for use by fifo. */ |
| u8_t *psdu; /* Pointer to a received frame. */ |
| u8_t lqi; /* Last received frame LQI value. */ |
| s8_t rssi; /* Last received frame RSSI value. */ |
| }; |
| |
| struct nrf5_802154_data { |
| /* Pointer to the network interface. */ |
| struct net_if *iface; |
| |
| /* 802.15.4 HW address. */ |
| u8_t mac[8]; |
| |
| /* RX thread stack. */ |
| K_THREAD_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[NRF_802154_RX_BUFFERS]; |
| |
| /* CCA complete sempahore. 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. |
| */ |
| u8_t tx_psdu[NRF5_PHR_LENGTH + NRF5_PSDU_LENGTH + NRF5_FCS_LENGTH]; |
| |
| /* TX result, updated in radio transmit callbacks. */ |
| u8_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; |
| }; |
| |
| #endif /* ZEPHYR_DRIVERS_IEEE802154_IEEE802154_NRF5_H_ */ |