authentication.cpp

00001 /*
00002 * Authors: Group 4 Adam Elghor, Brian Kaplan, Sayak Chatterjee, Moraa Onwonga
00003 * Purpose: Controls Input and Output Data
00004 * Language: C
00005 */
00006 #include "authentication.h"
00007 #include "powerManagement.h"
00008 #include "parameters.h"
00009 
00010 int p1;
00011 int p2;
00012 int p3;
00013 int p4;
00014 
00015 int entryNum1;
00016 int entryNum2;
00017 int entryNum3;
00018 int entryNum4;
00019 
00020 
00021 AnalogIn pot1(p15);
00022 AnalogIn pot2(p16);
00023 AnalogIn pot3(p18);
00024 AnalogIn pot4(p19);
00025 
00026 bool bluetoothCode = false;
00027 bool bluetoothSetup = false;
00028 Serial blue(p28,p27);
00029 Serial pc(USBTX, USBRX);
00030 
00031 /*
00032 * Function: setEntrySequence
00033 * --------------------
00034 *  Reads in user's entry sequence attempt
00035 */
00036 void setEntrySequenceAttempt() {
00037     entryNum1 = float(pot1) * 6;
00038     entryNum2 = float(pot2) * 6;
00039     entryNum3 = float(pot3) * 6;
00040     entryNum4 = float(pot4) * 6;
00041 }
00042 
00043 /*
00044 * Function:  CorrectEntrySequenceAttempt
00045 * --------------------
00046 *  Checks whether the user's entry sequence attempt is correct
00047 *
00048 *  returns: true if the entry sequence attempt from the user matches
00049 *  the set entry sequence otherwise false
00050 *
00051 */
00052 bool CorrectEntrySequenceAttempt() {
00053     if (bluetoothCode) {
00054         return true;
00055 
00056     }
00057     p1 = float(pot1) * 6;
00058     p2 = float(pot2) * 6;
00059     p3 = float(pot3) * 6;
00060     p4 = float(pot4) * 6;
00061 
00062     return (checkPot(p1,entryNum1) && checkPot(p2,entryNum2) && checkPot(p3,entryNum3) && checkPot(p3,entryNum3));
00063 }
00064 
00065 void printPotValues() {
00066     pc.printf("pot1 is %f", pot1);
00067     
00068 }
00069 
00070 bool checkPot(int p1, int p2) {
00071     return (p2 - p1) < 2 && (p1 - p2) > -2;
00072 
00073 }
00074 
00075 bool checkBluetooth() {
00076     if (bluetoothSetup) {
00077         bluetoothSetup = false;
00078         return true;
00079     }
00080     return false;
00081 }
00082 
00083 
00084 
00085 /*
00086 * Function:  parse_bluetooth
00087 * --------------------
00088 *  bluetooth stuff EDIT LATER
00089 *
00090 *  returns:
00091 *
00092 */
00093 void parse_bluetooth()
00094 {
00095     switch (blue.getc()) {
00096         case 'o':
00097             bluetoothCode  = true;
00098             break;
00099         case 'l':
00100             bluetoothCode = false;
00101             break;
00102         case 's':
00103             bluetoothSetup = true;
00104             break;
00105     }
00106     
00107 }
00108 
00109 void start_bluetooth() {
00110      blue.attach(&parse_bluetooth, Serial::RxIrq);  
00111 }
00112 
00113 /*
00114 * Function:  sdCard
00115 * --------------------
00116 *  sdCard stuff EDIT LATER
00117 *
00118 *  returns:
00119 *
00120 */
00121 void sdCard() {
00122 
00123 }
00124 
00125