/* 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"
 
 #if NEED_CONSOLE_OUTPUT
Serial  pc(USBTX, USBRX);
#endif /* #if NEED_CONSOLE_OUTPUT */
 
 /**************************************************************************/
/*!
    @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;         
}
     