158 lines
3.6 KiB
C
158 lines
3.6 KiB
C
/*
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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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/** @file
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* @brief OpenThread l2 stack public header
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*/
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#ifndef ZEPHYR_INCLUDE_NET_OPENTHREAD_H_
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#define ZEPHYR_INCLUDE_NET_OPENTHREAD_H_
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/**
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* @brief OpenThread l2 stack api
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* @defgroup OpenThread l2 layer
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* @ingroup networking
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* @{
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*/
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#include <kernel.h>
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#include <net/net_if.h>
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#include <openthread/instance.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @cond INTERNAL_HIDDEN
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*/
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/**
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* @brief Type of pkt_list
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*/
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struct pkt_list_elem {
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struct net_pkt *pkt;
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};
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/**
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* @brief OpenThread l2 private data.
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*/
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struct openthread_context {
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/** Pointer to OpenThread stack instance */
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otInstance *instance;
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/** Pointer to OpenThread network interface */
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struct net_if *iface;
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/** Index indicates the head of pkt_list ring buffer */
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uint16_t pkt_list_in_idx;
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/** Index indicates the tail of pkt_list ring buffer */
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uint16_t pkt_list_out_idx;
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/** Flag indicates that pkt_list is full */
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uint8_t pkt_list_full;
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/** Array for storing net_pkt for OpenThread internal usage */
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struct pkt_list_elem pkt_list[CONFIG_OPENTHREAD_PKT_LIST_SIZE];
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/** A mutex to protect API calls from being preempted. */
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struct k_mutex api_lock;
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/** A work queue for all OpenThread activity */
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struct k_work_q work_q;
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/** Work object for OpenThread internal usage */
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struct k_work api_work;
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};
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/**
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* INTERNAL_HIDDEN @endcond
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*/
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/**
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* @brief Sets function which will be called when certain configuration or state
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* changes within OpenThread.
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*
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* @param cb function to call in callback procedure.
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*/
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void openthread_set_state_changed_cb(otStateChangedCallback cb);
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/**
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* @brief Get OpenThread thread identification.
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*/
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k_tid_t openthread_thread_id_get(void);
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/**
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* @brief Get pointer to default OpenThread context.
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*
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* @retval !NULL On success.
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* @retval NULL On failure.
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*/
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struct openthread_context *openthread_get_default_context(void);
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/**
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* @brief Get pointer to default OpenThread instance.
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*
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* @retval !NULL On success.
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* @retval NULL On failure.
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*/
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struct otInstance *openthread_get_default_instance(void);
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/**
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* @brief Starts the OpenThread network.
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*
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* @details Depends on active settings: it uses stored network configuration,
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* start joining procedure or uses default network configuration. Additionally
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* when the device is MTD, it sets the SED mode to properly attach the network.
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*
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* @param ot_context
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*/
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int openthread_start(struct openthread_context *ot_context);
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/**
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* @brief Lock internal mutex before accessing OT API.
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*
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* @details OpenThread API is not thread-safe, therefore before accessing any
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* API function, it's needed to lock the internal mutex, to prevent the
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* OpenThread thread from prempting the API call.
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*
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* @param ot_context Context to lock.
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*/
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void openthread_api_mutex_lock(struct openthread_context *ot_context);
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/**
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* @brief Try to lock internal mutex before accessing OT API.
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*
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* @details This function behaves like openthread_api_mutex_lock() provided that
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* the internal mutex is unlocked. Otherwise, it exists immediately and returns
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* a negative value.
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*
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* @param ot_context Context to lock.
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* @retval 0 On success.
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* @retval <0 On failure.
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*/
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int openthread_api_mutex_try_lock(struct openthread_context *ot_context);
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/**
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* @brief Unlock internal mutex after accessing OT API.
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*
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* @param ot_context Context to unlock.
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*/
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void openthread_api_mutex_unlock(struct openthread_context *ot_context);
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#define OPENTHREAD_L2_CTX_TYPE struct openthread_context
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#endif /* ZEPHYR_INCLUDE_NET_OPENTHREAD_H_ */
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