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Diff: source/utils/Utils.cpp
- Revision:
- 132:51056160fa4a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/source/utils/Utils.cpp Wed Oct 07 08:39:04 2015 +0200 @@ -0,0 +1,125 @@ +/* mbed Microcontroller Library +* Copyright (c) 2006-2013 ARM Limited +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +*/ + +#include "Utils.h" + +/**************************************************************************/ +/*! + @brief sets values of EN_HIGH_POWER and PA_LEVEL corresponding to dBMLevel of tx power + + @returns value of tx power in dbm actually set + + @params[in] dBMLevel + dBMLevel of tx power to be set + + @params[in] dBMLevel + dBMLevel of tx power to be set + + @endcode +*/ +/**************************************************************************/ +double getHighPowerAndPALevelValue(int8_t dBMLevel, int8_t& EN_HIGH_POWER, int8_t& PA_LEVEL) { + double dbm = (double) dBMLevel; + if(dbm<-18.0) { + dbm = -18; + EN_HIGH_POWER = 0; + PA_LEVEL = 0; + } + else if(dbm>8.0) { + dbm = 8; + EN_HIGH_POWER = 1; + PA_LEVEL = 7; + } + + // As a policy we are setting tx power level to the higher side + if((dbm>-18.0) && (dbm<=-15)) { + // set tx power to -15dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 0; + } + else if((dbm>-15) && (dbm<=-14.7)) { + // set tx power to -14.7dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 1; + } + else if((dbm>-14.7) && (dbm<=-11.7)) { + // set tx power to -11.7dBM + EN_HIGH_POWER = 1; + PA_LEVEL = 1; + } + else if((dbm>-11.7) && (dbm<=-11.4)) { + // set tx power to -11.4dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 2; + } + else if((dbm>-11.4) && (dbm<=-8.4)) { + // set tx power to -8.4dBM + EN_HIGH_POWER = 1; + PA_LEVEL = 2; + } + else if((dbm>-8.4) && (dbm<=-8.1)) { + // set tx power to -8.1dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 3; + } + else if((dbm>-8.1) && (dbm<=-5.1)) { + // set tx power to -5.1dBM + EN_HIGH_POWER = 1; + PA_LEVEL = 3; + } + else if((dbm>-5.1) && (dbm<=-4.9)) { + // set tx power to -4.9dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 4; + } + else if((dbm>-4.9) && (dbm<=-2.1)) { + // set tx power to -2.1dBM + EN_HIGH_POWER = 1; + PA_LEVEL = 4; + } + else if((dbm>-2.1) && (dbm<=-1.6)) { + // set tx power to -1.6dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 5; + } + else if((dbm>-1.6) && (dbm<=1.4)) { + // set tx power to -1.6dBM + EN_HIGH_POWER = 1; + PA_LEVEL = 5; + } + else if((dbm>1.4) && (dbm<=1.7)) { + // set tx power to 1.7dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 6; + } + else if((dbm>1.7) && (dbm<=4.7)) { + // set tx power to 4.7dBM + EN_HIGH_POWER = 1; + PA_LEVEL = 6; + } + else if((dbm>4.7) && (dbm<=5.0)) { + // set tx power to 5.0dBM + EN_HIGH_POWER = 0; + PA_LEVEL = 7; + } + else if((dbm>5.0) && (dbm<=8)) { + // set tx power to 8.0dBM + EN_HIGH_POWER = 1; + PA_LEVEL = 7; + } + + return dbm; +}