Diff: BLE_BlueNRG/utils/src/Utils.cpp

Revision:

2:b5166e24c7a6

Parent:

0:3d641e170a74

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BLE_BlueNRG/utils/src/Utils.cpp	Tue May 19 17:46:51 2015 +0000
@@ -0,0 +1,130 @@
+/* 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;         
+}
+     
\ No newline at end of file