1 /******************************************************************************* 2 * 3 * queue 4 * 5 * Copyright (c) 2018, Raccon BLE Sniffer 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are 10 * met: 11 * 12 * * Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * * Redistributions in binary form must reproduce the above 15 * copyright notice, this list of conditions and the following disclaimer 16 * in the documentation and/or other materials provided with the 17 * distribution. 18 * * Neither the name of "btlejack2" nor the names of its 19 * contributors may be used to endorse or promote products derived from 20 * this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 *******************************************************************************/ 35 36 #include <stdint.h> 37 38 39 typedef struct { 40 uint8_t chMap[5]; 41 uint8_t hopIncrement; 42 uint8_t chRemap[37]; 43 uint8_t chCnt; 44 // csa1 45 uint8_t currentCh; 46 // csa2 47 uint16_t channelIdentifier; 48 } hopping_t; 49 50 51 /** 52 * @brief init hopping instance 53 */ 54 void hopping_init( hopping_t *c ); 55 56 /* 57 * @brief set list of used channels 58 * @param channel_map 59 */ 60 void hopping_set_channel_map( hopping_t *c, const uint8_t *chm); 61 62 // Channel Selection Algorithm #1 63 64 /* 65 * @brief set hop increment 66 */ 67 void hopping_csa1_set_hop_increment( hopping_t *c, uint8_t hopIncrement ); 68 69 /** 70 * @brief get next channel 71 */ 72 uint8_t hopping_csa1_get_next_channel( hopping_t *c ); 73 74 // Channel Selection Algorithm #2 75 76 /* 77 * @brief init csa 2 algorithm 78 */ 79 void hopping_csa2_set_access_address( hopping_t *c, uint32_t accessAddress ); 80 81 /** 82 * @brief get next channel 83 */ 84 uint8_t hopping_csa2_get_channel_for_counter( hopping_t *c, uint16_t counter ); 85 86