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81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
/*
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* Copyright (C) 2015 Daniel Krebs
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* 2016 INRIA
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup net_gnrc_mac
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* @{
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*
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* @file
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* @brief Definitions of internal functions of GNRC_MAC module
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* @internal
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* @author Daniel Krebs <github@daniel-krebs.net>
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* @author Shuguo Zhuo <shuguo.zhuo@inria.fr>
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*/
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#ifndef GNRC_MAC_INTERNAL_H_
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#define GNRC_MAC_INTERNAL_H_
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#include <stdint.h>
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#include <net/ieee802154.h>
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#include <net/gnrc/mac/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if (GNRC_MAC_TX_QUEUE_SIZE != 0) || defined(DOXYGEN)
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/**
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* @brief Queues the packet into the related transmission packet queue in netdev2_t::tx.
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* Note that, in case the `gnrc_mac_tx_neighbor_t` structure is in used (indicated
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* by `GNRC_MAC_NEIGHBOR_COUNT != 0`), this function queues the packet to
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* the queue associated to the pkt's destination neighbor, including a
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* `broadcast-neighbor` (neighbor id is `0` in netdev2_t::tx::neighbors) which
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* specifically stores broadcasting packets.
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* On the other hand, if `gnrc_mac_tx_neighbor_t` structure is not in used (indicated
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* by `GNRC_MAC_NEIGHBOR_COUNT == 0`), this function queues the packet into the single
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* priority TX queue defined in in netdev2_t::tx.
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*
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* @param[in,out] tx gnrc_mac transmission management object
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* @param[in] priority the priority of @p pkt
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* @param[in] pkt gnrc packet that will be queued
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*
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* @return true if queued successfully, otherwise false.
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*/
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bool gnrc_mac_queue_tx_packet(gnrc_mac_tx_t* tx, uint32_t priority, gnrc_pktsnip_t* pkt);
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#endif /* (GNRC_MAC_TX_QUEUE_SIZE != 0) || defined(DOXYGEN) */
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#if (GNRC_MAC_RX_QUEUE_SIZE != 0) || defined(DOXYGEN)
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/**
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* @brief Queues the packet into the reception packet queue in netdev2_t::rx.
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*
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* @param[in,out] rx gnrc_mac reception management object
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* @param[in] priority the priority of @p pkt
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* @param[in] pkt gnrc packet that will be queued
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*
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* @return true if queued successfully, otherwise false.
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*/
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bool gnrc_mac_queue_rx_packet(gnrc_mac_rx_t* rx, uint32_t priority, gnrc_pktsnip_t* pkt);
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#endif /* (GNRC_MAC_RX_QUEUE_SIZE != 0) || defined(DOXYGEN) */
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#if (GNRC_MAC_DISPATCH_BUFFER_SIZE != 0) || defined(DOXYGEN)
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/**
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* @brief Dispatch all the packets stored in netdev2_t::rx:dispatch_buffer to upper layer.
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*
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* @param[in,out] rx gnrc_mac reception management object
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*/
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void gnrc_mac_dispatch(gnrc_mac_rx_t* rx);
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#endif /* (GNRC_MAC_DISPATCH_BUFFER_SIZE != 0) || defined(DOXYGEN) */
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#ifdef __cplusplus
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}
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#endif
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#endif /* GNRC_MAC_INTERNAL_H_ */
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/** @} */
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