1 /* 2 * Copyright (c) 2020, The OpenThread Authors. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. Neither the name of the copyright holder nor the 13 * names of its contributors may be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef OT_CORE_RADIO_MAX_POWER_TABLE_HPP_ 30 #define OT_CORE_RADIO_MAX_POWER_TABLE_HPP_ 31 32 #include "radio/radio.hpp" 33 34 namespace ot { 35 36 class MaxPowerTable 37 { 38 public: 39 static constexpr int8_t kPowerDefault = 30; ///< Default power 1 watt (30 dBm). 40 MaxPowerTable(void)41 MaxPowerTable(void) { memset(mPowerTable, kPowerDefault, sizeof(mPowerTable)); } 42 43 /** 44 * Gets the max allowed transmit power of channel @p aChannel. 45 * 46 * @param[in] aChannel The radio channel number. 47 * 48 * @returns The max supported transmit power in dBm. 49 */ GetTransmitPower(uint8_t aChannel) const50 int8_t GetTransmitPower(uint8_t aChannel) const { return mPowerTable[aChannel - Radio::kChannelMin]; } 51 52 /** 53 * Sets the max allowed transmit power of channel @p aChannel. 54 * 55 * @param[in] aChannel The radio channel number. 56 * @param[in] aPower The max supported transmit power in dBm. 57 */ SetTransmitPower(uint8_t aChannel,int8_t aPower)58 void SetTransmitPower(uint8_t aChannel, int8_t aPower) { mPowerTable[aChannel - Radio::kChannelMin] = aPower; } 59 60 /** 61 * Gets the supported channel masks. 62 */ GetSupportedChannelMask(void) const63 uint32_t GetSupportedChannelMask(void) const 64 { 65 uint32_t channelMask = 0; 66 67 for (uint8_t i = Radio::kChannelMin; i <= Radio::kChannelMax; ++i) 68 { 69 if (mPowerTable[i - Radio::kChannelMin] != OT_RADIO_POWER_INVALID) 70 { 71 channelMask |= (1 << i); 72 } 73 } 74 75 return channelMask; 76 } 77 78 private: 79 int8_t mPowerTable[Radio::kChannelMax - Radio::kChannelMin + 1]; 80 }; 81 82 } // namespace ot 83 84 #endif // OT_CORE_RADIO_MAX_POWER_TABLE_HPP_ 85