hal_nordic/drivers/nrf_802154/driver/src/mac_features/nrf_802154_ie_writer.h

142 lines
5.8 KiB
C

/*
* Copyright (c) 2021, Nordic Semiconductor ASA
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef NRF_802154_IE_WRITER_H__
#define NRF_802154_IE_WRITER_H__
#include <stdint.h>
#include <stdbool.h>
#include "nrf_802154_types.h"
/**
* @defgroup nrf_802154_ie_writer Radio driver Information Element data injection feature.
* @{
* @ingroup nrf_802154
* @brief Information element writer module.
*/
/**
* @brief Prepares to write Information Element data to all elements recognized by the module.
*
* Calls to this function put the IE writer module into an armed state.
* In the armed state the addresses of recognized Information Element values
* are latched. The IE writer module shall perform necessary calculations and write
* the results to the latched addresses during the execution of either
* nrf_802154_ie_writer_tx_ack_started_hook or nrf_802154_ie_writer_tx_started_hook hooks.
*
* It is expected, that the layout of the frame does not change while the IE writer is in
* armed state.
*
* If this function detects a malformed header IE, the module state shall be reset to the
* unarmed state. There is no guarantee that all malformed header IEs will be detected, but
* it is guaranteed that the writer module shall never modify memory past the p_end_addr argument.
*
* @param[in] p_ie_header Address of the IE header.
* @param[in] p_end_addr First invalid address after p_ie_header.
*
*/
void nrf_802154_ie_writer_prepare(uint8_t * p_ie_header, const uint8_t * p_end_addr);
/**
* @brief Transmission setup hook for the IE writer module.
*
* This hook parses the frame in search of header Information Elements and arms
* the IE writer module. The IE writer module shall write data to recognized
* Information Elements during the execution of nrf_802154_ie_writer_tx_ack_started_hook
* and nrf_802154_ie_writer_tx_started_hook hooks.
*
* If this function detects a malformed frame, the module state shall be reset to the
* unarmed state. There is no guarantee that all malformed frames will be detected.
*
* @param[in] p_frame Pointer to the buffer that contains the PHR and PSDU
* of the transmitted frame.
* @param[in] p_params Pointer to the transmission parameters.
* @param[in] notify_function Function to be called to notify transmission failure.
*
* @retval true Always succeeds.
*/
bool nrf_802154_ie_writer_tx_setup(
uint8_t * p_frame,
nrf_802154_transmit_params_t * p_params,
nrf_802154_transmit_failed_notification_t notify_function);
/**
* @brief ACK TX started hook for the IE writer module.
*
* This hook executes during the EVENT_ADDRESS radio event. If the IE writer is armed,
* the IEs recognized by the writer module shall be modified. If IE writer is not armed
* no action shall be performed.
*
* The function writes to memory addresses that were found suitable by the call to
* nrf_802154_ie_writer_prepare function. No parsing of the frame pointed by the p_ack
* argument is performed and the argument itself is ignored due to timing requirements
* that this hook must not exceed.
*
* @param[in] p_ack Pointer to the buffer that contains the PHR and PSDU of the ACK frame.
*
*/
void nrf_802154_ie_writer_tx_ack_started_hook(uint8_t * p_ack);
/**
* @brief TX started hook for the IE writer module.
*
* This hook executes during the EVENT_ADDRESS radio event. If the IE writer is armed,
* the IEs recognized by the writer module shall be modified. If IE writer is not armed
* no action shall be performed.
*
* The function writes to memory addresses that were found suitable by the call to
* nrf_802154_ie_writer_prepare function. No parsing of the frame pointed by the p_frame
* argument is performed and the argument itself is ignored due to timing requirements
* that this hook must not exceed.
*
* @param[in] p_frame Pointer to the buffer that contains the PHR and PSDU of the transmitted frame.
*
* @retval true Always succeeds.
*/
bool nrf_802154_ie_writer_tx_started_hook(uint8_t * p_frame);
/**
* @brief Sets the value of CSL period to inject into the CSL information element.
*
* @param[in] period CSL period value.
*/
void nrf_802154_ie_writer_csl_period_set(uint16_t period);
/**
*@}
**/
#endif // NRF_802154_IE_WRITER_H__