mirror of https://github.com/ARMmbed/mbed-os.git
78 lines
3.2 KiB
C
78 lines
3.2 KiB
C
/*
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* Copyright (c) 2018, Arm Limited and affiliates.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CHANNEL_FUNC_H_
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#define CHANNEL_FUNC_H_
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/**
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* @brief Function calculates nearest (higher) prime number for given start value.
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* @param start_value Start value.
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* @return Calculated prime number.
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*/
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uint16_t tr51_calc_nearest_prime_number(uint16_t start_value);
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/**
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* @brief Initialize channel table for TR51 channel function.
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* @param channel_table Channel table to be initialized.
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* @param number_of_channels Number of channels.
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* @return 0 Success, -1 Failure.
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*/
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int tr51_init_channel_table(int16_t *channel_table, int16_t number_of_channels);
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/**
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* @brief Compute the unicast schedule channel index using tr51 channel function.
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* @param channel_table Channel table.
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* @param output_table Table used to generate output channel.
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* @param slot_number Current slot number.
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* @param mac MAC address of the node for which the index is calculated.
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* @param number_of_channels Number of channels.
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* @param excluded_channels Excluded channels.
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* @return Channel index.
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*/
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int32_t tr51_get_uc_channel_index(int16_t *channel_table, uint8_t *output_table, uint16_t slot_number, uint8_t *mac, int16_t number_of_channels, uint32_t *excluded_channels);
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/**
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* @brief Compute the broadcast schedule channel index using tr51 channel function.
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* @param channel_table Channel table.
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* @param output_table Table used to generate output channel.
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* @param slot_number Current slot number.
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* @param bsi Broadcast schedule identifier of the node for which the index is calculated.
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* @param number_of_channels Number of channels.
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* @param excluded_channels Excluded channels.
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* @return Channel index.
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*/
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int32_t tr51_get_bc_channel_index(int16_t *channel_table, uint8_t *output_table, uint16_t slot_number, uint16_t bsi, int16_t number_of_channels, uint32_t *excluded_channels);
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/**
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* @brief Compute the unicast schedule channel index using direct hash channel function.
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* @param slot_number Current slot number.
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* @param mac MAC address of the node for which the index is calculated.
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* @param number_of_channels Number of channels.
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* @return Channel index.
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*/
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int32_t dh1cf_get_uc_channel_index(uint16_t slot_number, uint8_t *mac, int16_t number_of_channels);
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/**
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* @brief Compute the broadcast schedule channel index using direct hash channel function.
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* @param slot_number Current slot number.
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* @param bsi Broadcast schedule identifier of the node for which the index is calculated.
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* @param number_of_channels Number of channels.
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* @return Channel index.
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*/
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int32_t dh1cf_get_bc_channel_index(uint16_t slot_number, uint16_t bsi, int16_t number_of_channels);
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#endif /*CHANNEL_FUNC_H_*/
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