Diff: utils/src/Utils.cpp

Revision:

0:a948f5f3904c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/utils/src/Utils.cpp	Fri Dec 19 18:56:07 2014 +0000
@@ -0,0 +1,129 @@
+/* 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;         
+}