FreeCalypso > hg > fc-selenite
annotate src/nucleus/ioi.c @ 187:d05fb947b50d
src/cs: sync with Magnetite
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 15 Feb 2020 20:23:30 +0000 |
parents | 0f80e1e4dce4 |
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1 /*************************************************************************/ |
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2 /* */ |
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3 /* Copyright Mentor Graphics Corporation 2002 */ |
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4 /* All Rights Reserved. */ |
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5 /* */ |
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6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ |
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7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ |
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8 /* SUBJECT TO LICENSE TERMS. */ |
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9 /* */ |
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10 /*************************************************************************/ |
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11 |
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12 /*************************************************************************/ |
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13 /* */ |
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14 /* FILE NAME VERSION */ |
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15 /* */ |
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16 /* ioi.c Nucleus PLUS 1.14 */ |
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17 /* */ |
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18 /* COMPONENT */ |
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19 /* */ |
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20 /* IO - Input/Output Driver Management */ |
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21 /* */ |
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22 /* DESCRIPTION */ |
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23 /* */ |
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24 /* This file contains the initialization routine for the I/O Driver */ |
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25 /* Management component. */ |
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26 /* */ |
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27 /* DATA STRUCTURES */ |
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28 /* */ |
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29 /* None */ |
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30 /* */ |
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31 /* FUNCTIONS */ |
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32 /* */ |
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33 /* IOI_Initialize I/O Driver Initialize */ |
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34 /* */ |
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35 /* DEPENDENCIES */ |
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36 /* */ |
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37 /* io_defs.h I/O Driver component consts */ |
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38 /* tc_defs.h Thread control constants */ |
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39 /* */ |
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40 /* HISTORY */ |
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41 /* */ |
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42 /* DATE REMARKS */ |
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43 /* */ |
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44 /* 03-01-1993 Created initial version 1.0 */ |
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45 /* 04-19-1993 Verified version 1.0 */ |
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46 /* 03-01-1994 Updated copyright notice, */ |
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47 /* changed "void" to VOID, */ |
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48 /* resulting in version 1.1 */ |
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49 /* */ |
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50 /* 03-18-1994 Verified version 1.1 */ |
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51 /* 04-17-1996 updated to version 1.2 */ |
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52 /* 03-24-1998 Released version 1.3 */ |
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53 /* 03-26-1999 Released 1.11m (new release */ |
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54 /* numbering scheme) */ |
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55 /* 04-17-2002 Released version 1.13m */ |
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56 /* 11-07-2002 Released version 1.14 */ |
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57 /*************************************************************************/ |
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58 #define NU_SOURCE_FILE |
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59 |
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60 |
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61 #include "io_defs.h" /* I/O driver constants */ |
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62 #include "io_extr.h" /* I/O driver interfaces */ |
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63 #include "tc_defs.h" /* Thread control constants */ |
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64 |
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65 |
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66 |
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67 /* Define external inner-component global data references. */ |
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68 |
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69 extern CS_NODE *IOD_Created_Drivers_List; |
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70 extern UNSIGNED IOD_Total_Drivers; |
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71 extern TC_PROTECT IOD_List_Protect; |
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72 |
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73 |
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74 /*************************************************************************/ |
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75 /* */ |
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76 /* FUNCTION */ |
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77 /* */ |
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78 /* IOI_Initialize */ |
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79 /* */ |
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80 /* DESCRIPTION */ |
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81 /* */ |
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82 /* This function initializes the data structures that control the */ |
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83 /* operation of the I/O driver component (IO). There are no I/O */ |
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84 /* drivers initially. This routine must be called from Supervisor */ |
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85 /* mode in Supervisor/User mode switched kernels. */ |
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86 /* */ |
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87 /* CALLED BY */ |
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88 /* */ |
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89 /* INC_Initialize System initialization */ |
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90 /* */ |
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91 /* CALLS */ |
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92 /* */ |
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93 /* None */ |
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94 /* */ |
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95 /* INPUTS */ |
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96 /* */ |
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97 /* None */ |
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98 /* */ |
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99 /* OUTPUTS */ |
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100 /* */ |
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101 /* IOD_Created_Drivers_List List of created I/O drivers */ |
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102 /* IOD_Total_Drivers Number of created I/O drivers*/ |
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103 /* IOD_List_Protect Protection for driver list */ |
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104 /* */ |
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105 /* HISTORY */ |
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106 /* */ |
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107 /* DATE REMARKS */ |
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108 /* */ |
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109 /* 03-01-1993 Created initial version 1.0 */ |
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110 /* 04-19-1993 Verified version 1.0 */ |
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111 /* 03-01-1994 Updated copyright notice, */ |
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112 /* changed "void" to "VOID", */ |
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113 /* resulting in version 1.1 */ |
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114 /* */ |
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115 /* 03-18-1994 Verified version 1.1 */ |
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116 /* */ |
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117 /*************************************************************************/ |
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118 VOID IOI_Initialize(VOID) |
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119 { |
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120 |
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121 /* Initialize the created I/O driver list to NU_NULL. */ |
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122 IOD_Created_Drivers_List = NU_NULL; |
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123 |
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124 /* Initialize the total number of created I/O drivers to 0. */ |
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125 IOD_Total_Drivers = 0; |
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126 |
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127 /* Initialize the list protection structure. */ |
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128 IOD_List_Protect.tc_tcb_pointer = NU_NULL; |
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129 } |
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130 |
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131 |
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132 |
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133 |
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134 |
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135 |