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1 // Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // template\template_variant\specific\monitor.cpp |
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15 // Kernel crash debugger - Template specific |
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16 // |
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17 // |
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18 |
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19 #include <kernel/monitor.h> |
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20 #include "variant.h" |
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21 |
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22 // |
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23 // UART code |
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24 // |
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25 void CrashDebugger::InitUart() |
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26 { |
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27 // Wait for last kernel trace to appear |
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28 TTemplate::BootWaitMilliSeconds(100); |
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29 |
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30 // |
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31 // TO DO: (mandatory) |
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32 // |
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33 // Initialise the UART for outputing debug strings. Need to work with the following settings: |
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34 // - 115200Baud |
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35 // - 8 data bits, 1 stop bit |
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36 // - No parity |
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37 // Obtain and use UART linear base address to access the UART registers, e.g. |
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38 // TUint32 debugPortBase = TTemplate::DebugPortAddr(); |
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39 // |
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40 } |
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41 |
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42 void CrashDebugger::UartOut(TUint aChar) |
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43 { |
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44 // |
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45 // TO DO: (mandatory) |
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46 // |
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47 // Output aChar through debug UART |
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48 // Obtain and use UART linear base address to access the UART register, e.g. |
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49 // Should take in consideration software flow control and check if Power is stable as per example below (pseudo-code): |
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50 // |
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51 TUint c=0; |
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52 // TUint32 debugPortBase = TTemplate::DebugPortAddr(); TO DO: (mandatory): Uncomment this |
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53 // while (!(input FIFO empty)) TO DO: (mandatory): Implement |
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54 { |
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55 if (CheckPower()) |
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56 return; |
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57 // c=(read received char); TO DO: (mandatory): Implement |
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58 if (c==19) // XOFF |
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59 { |
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60 FOREVER |
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61 { |
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62 // wait for XON |
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63 // while((input FIFO empty)) TO DO: (mandatory): Implement |
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64 { |
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65 if (CheckPower()) |
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66 return; |
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67 } |
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68 // c=(read received char); TO DO: (mandatory): Implement |
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69 if (c==17) // XON |
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70 break; |
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71 else if (c==3) // Ctrl C |
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72 Leave(KErrCancel); |
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73 } |
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74 } |
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75 |
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76 // coverity[dead_error_condition] |
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77 // The next line should be reachable when this template file is edited for use |
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78 else if (c==3) // Ctrl C |
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79 Leave(KErrCancel); |
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80 } |
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81 |
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82 // while ((output FIFO full)) TO DO: (mandatory): wait for last char to leave the FIFO (Implement) |
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83 CheckPower(); |
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84 // (write aChar to output port - or FIFO); TO DO: (mandatory): Implement |
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85 } |
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86 |
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87 TUint8 CrashDebugger::UartIn() |
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88 { |
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89 // |
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90 // TO DO: (mandatory) |
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91 // |
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92 // Wait for a char to arrive at input port, read it and return its value |
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93 // Use the UART linear base address obtained as in below example to access the UART registers |
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94 // Example below is pseudo-code: |
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95 // |
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96 // TUint32 debugPortBase = TTemplate::DebugPortAddr(); TO DO: (mandatory): Uncomment this |
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97 // while ((input FIFO empty)) TO DO: (mandatory): wait for a character to arrive (Implement) |
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98 { |
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99 if (CheckPower()) |
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100 return 0x0d; |
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101 } |
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102 // return (read received char); TO DO: (mandatory): Implement |
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103 return 0; // EXAMPLE ONLY |
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104 } |
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105 |
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106 TBool CrashDebugger::CheckPower() |
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107 { |
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108 // |
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109 // TO DO: (mandatory) |
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110 // |
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111 // Check if power supply is stable and return ETrue if not |
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112 // |
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113 return EFalse; // EXAMPLE ONLY |
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114 } |
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115 |