FreeCalypso > hg > fc-magnetite
annotate src/gpf3/frame/vsi_sem.c @ 521:f9125919bbe4
README: update for Selenite
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 22 Jul 2018 19:10:47 +0000 |
parents | c41a534f33c6 |
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rev | line source |
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1 /* |
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2 +------------------------------------------------------------------------------ |
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3 | File: vsi_sem.c |
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4 +------------------------------------------------------------------------------ |
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5 | Copyright 2002 Texas Instruments Berlin, AG |
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6 | All rights reserved. |
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7 | |
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8 | This file is confidential and a trade secret of Texas |
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9 | Instruments Berlin, AG |
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10 | The receipt of or possession of this file does not convey |
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11 | any rights to reproduce or disclose its contents or to |
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12 | manufacture, use, or sell anything it may describe, in |
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13 | whole, or in part, without the specific written consent of |
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14 | Texas Instruments Berlin, AG. |
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15 +----------------------------------------------------------------------------- |
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16 | Purpose : This Module defines the virtual system interface part |
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17 | for the semaphore handling. |
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18 +----------------------------------------------------------------------------- |
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19 */ |
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20 |
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21 #ifndef __VSI_SEM_C__ |
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22 #define __VSI_SEM_C__ |
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23 #endif |
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24 |
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25 /*==== INCLUDES ===================================================*/ |
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26 |
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27 #include "typedefs.h" |
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28 #include "vsi.h" |
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29 #include "os.h" |
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30 #include "frm_defs.h" |
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31 #include "frm_types.h" |
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32 #include "frm_glob.h" |
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33 |
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34 /*==== TYPES ======================================================*/ |
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35 |
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36 |
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37 /*==== CONSTANTS ==================================================*/ |
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38 |
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39 |
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40 /*==== EXTERNALS ==================================================*/ |
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41 /* -------------- S H A R E D - BEGIN ---------------- */ |
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42 #ifdef _TOOLS_ |
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43 #pragma data_seg("FRAME_SHARED") |
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44 #endif |
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45 |
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46 /*==== VARIABLES ==================================================*/ |
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47 |
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48 |
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49 #ifdef _TOOLS_ |
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50 #pragma data_seg() |
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51 #endif |
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52 /* -------------- S H A R E D - END ---------------- */ |
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53 |
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54 /*==== FUNCTIONS ==================================================*/ |
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55 |
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56 |
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57 #ifndef RUN_INT_RAM |
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58 /* |
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59 +--------------------------------------------------------------------+ |
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60 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | |
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61 | STATE : code ROUTINE : vsi_s_open | |
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62 +--------------------------------------------------------------------+ |
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63 |
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64 PURPOSE : opens a semaphore, creates if not exist |
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65 |
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66 */ |
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67 |
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68 T_HANDLE vsi_s_open (T_HANDLE Caller, char *Name, USHORT Count) |
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69 { |
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70 OS_HANDLE SemHandle; |
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71 |
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72 /* |
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73 * if semaphore already exists, return handle |
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74 */ |
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75 if ( os_OpenSemaphore ( Caller, Name, &SemHandle ) != OS_ERROR ) |
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76 return SemHandle; |
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77 |
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78 /* |
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79 * if semaphore not exists, create |
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80 */ |
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81 if ( os_CreateSemaphore ( Caller, Name, Count, &SemHandle, pf_TaskTable[Caller].MemPoolHandle ) != OS_ERROR ) |
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82 return SemHandle; |
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83 else |
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84 vsi_o_assert( Caller, OS_SYST_ERR_MAX_SEMA, __FILE__, __LINE__, |
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85 "Number of created semaphores > MAX_SEMAPHORES" ); |
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86 |
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87 /* |
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88 * if semaphore cannot be created, return VSI_ERROR |
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89 */ |
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90 return VSI_ERROR; |
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91 } |
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92 #endif |
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93 |
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94 #ifndef RUN_INT_RAM |
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95 /* |
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96 +--------------------------------------------------------------------+ |
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97 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | |
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98 | STATE : code ROUTINE : vsi_s_close | |
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99 +--------------------------------------------------------------------+ |
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100 |
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101 PURPOSE : closes a semaphore |
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102 |
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103 */ |
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104 |
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105 int vsi_s_close (T_HANDLE Caller, T_HANDLE SemHandle) |
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106 { |
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107 |
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108 if ( os_CloseSemaphore ( Caller, SemHandle ) != OS_ERROR ) |
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109 return VSI_OK; |
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110 |
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111 return VSI_ERROR; |
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112 } |
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113 #endif |
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114 |
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115 #ifndef RUN_FLASH |
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116 /* |
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117 +--------------------------------------------------------------------+ |
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118 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | |
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119 | STATE : code ROUTINE : vsi_s_get | |
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120 +--------------------------------------------------------------------+ |
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121 |
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122 PURPOSE : obtains a semaphore |
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123 |
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124 */ |
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125 |
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126 int vsi_s_get (T_HANDLE Caller, T_HANDLE SemHandle) |
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127 { |
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128 LONG Status; |
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129 |
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130 Status = os_ObtainSemaphore ( Caller, SemHandle, OS_SUSPEND ); |
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131 if ( Status == OS_OK || Status == OS_WAITED ) |
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132 return VSI_OK; |
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133 |
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134 return VSI_ERROR; |
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135 } |
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136 #endif |
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137 |
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138 #ifndef RUN_FLASH |
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139 /* |
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140 +--------------------------------------------------------------------+ |
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141 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | |
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142 | STATE : code ROUTINE : vsi_s_release | |
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143 +--------------------------------------------------------------------+ |
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144 |
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145 PURPOSE : releases a semaphore |
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146 |
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147 */ |
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148 |
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149 int vsi_s_release (T_HANDLE Caller, T_HANDLE SemHandle) |
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150 { |
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151 |
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152 if ( os_ReleaseSemaphore ( Caller, SemHandle ) != OS_ERROR ) |
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153 return VSI_OK; |
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154 |
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155 return VSI_ERROR; |
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156 } |
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157 #endif |
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158 |
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159 #ifndef RUN_INT_RAM |
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160 /* |
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161 +--------------------------------------------------------------------+ |
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162 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | |
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163 | STATE : code ROUTINE : vsi_s_status | |
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164 +--------------------------------------------------------------------+ |
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165 |
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166 PURPOSE : request the current count of a semaphore |
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167 |
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168 */ |
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169 |
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170 int vsi_s_status (T_HANDLE Caller, T_HANDLE SemHandle, USHORT *Count ) |
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171 { |
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172 |
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173 if ( os_QuerySemaphore ( Caller, SemHandle, Count ) != OS_ERROR ) |
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174 return VSI_OK; |
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175 |
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176 return VSI_ERROR; |
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177 } |
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178 #endif |
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179 |