1 | /** |
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2 | * @brief Test for Bodies of Macros |
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3 | * |
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4 | * Interrupt Disable/Enable Tests |
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5 | * Clock Tick from task level |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2012. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.com/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #ifdef HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #define CONFIGURE_INIT |
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22 | #include "system.h" |
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23 | |
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24 | /* prototypes */ |
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25 | void test_interrupt_inline(void); |
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26 | void check_isr_in_progress_inline(void); |
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27 | rtems_task blocked_task(rtems_task_argument argument); |
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28 | rtems_timer_service_routine test_unblock_task( |
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29 | rtems_id timer, |
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30 | void *arg |
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31 | ); |
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32 | rtems_timer_service_routine test_unblock_task( |
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33 | rtems_id timer, |
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34 | void *arg |
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35 | ); |
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36 | void check_isr_worked( |
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37 | char *s, |
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38 | int result |
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39 | ); |
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40 | rtems_timer_service_routine test_isr_in_progress( |
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41 | rtems_id timer, |
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42 | void *arg |
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43 | ); |
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44 | |
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45 | /* test bodies */ |
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46 | |
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47 | #define TEST_ISR_EVENT RTEMS_EVENT_0 |
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48 | |
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49 | typedef struct { |
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50 | ISR_Level actual_level; |
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51 | rtems_id master_task_id; |
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52 | } test_isr_level_context; |
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53 | |
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54 | static void isr_level_check_task( rtems_task_argument arg ) |
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55 | { |
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56 | test_isr_level_context *ctx = (test_isr_level_context *) arg; |
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57 | rtems_status_code sc; |
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58 | |
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59 | ctx->actual_level = _ISR_Get_level(); |
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60 | |
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61 | sc = rtems_event_send( ctx->master_task_id, TEST_ISR_EVENT ); |
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62 | rtems_test_assert( sc == RTEMS_SUCCESSFUL ); |
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63 | |
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64 | ( void ) rtems_task_suspend( RTEMS_SELF ); |
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65 | rtems_test_assert( 0 ); |
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66 | } |
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67 | |
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68 | static void test_isr_level_for_new_threads( ISR_Level last_proper_level ) |
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69 | { |
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70 | ISR_Level mask = CPU_MODES_INTERRUPT_MASK; |
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71 | ISR_Level current; |
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72 | test_isr_level_context ctx = { |
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73 | .master_task_id = rtems_task_self() |
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74 | }; |
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75 | |
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76 | for ( current = 0 ; current <= mask ; ++current ) { |
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77 | rtems_mode initial_modes = RTEMS_INTERRUPT_LEVEL(current); |
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78 | rtems_id id; |
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79 | rtems_status_code sc; |
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80 | rtems_event_set events; |
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81 | |
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82 | ctx.actual_level = 0xffffffff; |
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83 | |
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84 | sc = rtems_task_create( |
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85 | rtems_build_name('I', 'S', 'R', 'L'), |
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86 | RTEMS_MINIMUM_PRIORITY, |
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87 | RTEMS_MINIMUM_STACK_SIZE, |
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88 | initial_modes, |
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89 | RTEMS_DEFAULT_ATTRIBUTES, |
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90 | &id |
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91 | ); |
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92 | rtems_test_assert( sc == RTEMS_SUCCESSFUL ); |
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93 | |
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94 | sc = rtems_task_start( |
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95 | id, |
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96 | isr_level_check_task, |
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97 | (rtems_task_argument) &ctx |
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98 | ); |
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99 | rtems_test_assert( sc == RTEMS_SUCCESSFUL ); |
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100 | |
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101 | sc = rtems_event_receive( |
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102 | TEST_ISR_EVENT, |
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103 | RTEMS_EVENT_ALL | RTEMS_WAIT, |
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104 | RTEMS_NO_TIMEOUT, |
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105 | &events |
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106 | ); |
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107 | rtems_test_assert( sc == RTEMS_SUCCESSFUL ); |
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108 | rtems_test_assert( events == TEST_ISR_EVENT ); |
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109 | |
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110 | if ( current <= last_proper_level ) { |
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111 | rtems_test_assert( ctx.actual_level == current ); |
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112 | } else { |
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113 | rtems_test_assert( ctx.actual_level == last_proper_level ); |
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114 | } |
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115 | |
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116 | sc = rtems_task_delete( id ) ; |
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117 | rtems_test_assert( sc == RTEMS_SUCCESSFUL ); |
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118 | } |
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119 | } |
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120 | |
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121 | static void test_isr_level( void ) |
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122 | { |
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123 | ISR_Level mask = CPU_MODES_INTERRUPT_MASK; |
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124 | ISR_Level normal = _ISR_Get_level(); |
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125 | ISR_Level current = 0; |
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126 | ISR_Level last_proper_level; |
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127 | |
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128 | _ISR_Set_level( current ); |
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129 | rtems_test_assert( _ISR_Get_level() == current ); |
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130 | |
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131 | for ( current = current + 1 ; current <= mask ; ++current ) { |
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132 | ISR_Level actual; |
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133 | |
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134 | _ISR_Set_level( current ); |
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135 | |
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136 | actual = _ISR_Get_level(); |
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137 | rtems_test_assert( actual == current || actual == ( current - 1 ) ); |
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138 | |
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139 | if ( _ISR_Get_level() != current ) { |
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140 | break; |
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141 | } |
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142 | } |
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143 | |
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144 | last_proper_level = current - 1; |
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145 | |
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146 | for ( current = current + 1 ; current <= mask ; ++current ) { |
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147 | _ISR_Set_level( current ); |
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148 | rtems_test_assert( _ISR_Get_level() == current ); |
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149 | } |
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150 | |
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151 | _ISR_Set_level( normal ); |
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152 | |
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153 | /* |
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154 | * Now test that the ISR level specified for _Thread_Initialize() propagates |
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155 | * properly to the thread. |
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156 | */ |
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157 | test_isr_level_for_new_threads( last_proper_level ); |
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158 | } |
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159 | |
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160 | static void test_isr_locks( void ) |
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161 | { |
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162 | ISR_Level normal_interrupt_level = _ISR_Get_level(); |
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163 | ISR_lock_Control initialized = ISR_LOCK_INITIALIZER; |
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164 | ISR_lock_Control lock; |
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165 | ISR_Level level; |
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166 | |
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167 | _ISR_lock_Initialize( &lock ); |
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168 | rtems_test_assert( memcmp( &lock, &initialized, sizeof( lock ) ) == 0 ); |
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169 | |
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170 | _ISR_lock_ISR_disable_and_acquire( &lock, level ); |
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171 | rtems_test_assert( normal_interrupt_level != _ISR_Get_level() ); |
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172 | _ISR_lock_Release_and_ISR_enable( &lock, level ); |
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173 | |
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174 | rtems_test_assert( normal_interrupt_level == _ISR_Get_level() ); |
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175 | |
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176 | _ISR_lock_Acquire( &lock ); |
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177 | rtems_test_assert( normal_interrupt_level == _ISR_Get_level() ); |
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178 | _ISR_lock_Release( &lock ); |
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179 | |
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180 | rtems_test_assert( normal_interrupt_level == _ISR_Get_level() ); |
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181 | } |
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182 | |
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183 | static rtems_mode get_interrupt_level( void ) |
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184 | { |
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185 | rtems_status_code sc; |
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186 | rtems_mode mode; |
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187 | |
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188 | sc = rtems_task_mode( RTEMS_CURRENT_MODE, RTEMS_CURRENT_MODE, &mode ); |
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189 | rtems_test_assert( sc == RTEMS_SUCCESSFUL ); |
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190 | |
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191 | return mode & RTEMS_INTERRUPT_MASK; |
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192 | } |
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193 | |
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194 | static void test_interrupt_locks( void ) |
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195 | { |
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196 | rtems_mode normal_interrupt_level = get_interrupt_level(); |
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197 | rtems_interrupt_lock initialized = RTEMS_INTERRUPT_LOCK_INITIALIZER; |
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198 | rtems_interrupt_lock lock; |
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199 | rtems_interrupt_level level; |
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200 | |
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201 | rtems_interrupt_lock_initialize( &lock ); |
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202 | rtems_test_assert( memcmp( &lock, &initialized, sizeof( lock ) ) == 0 ); |
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203 | |
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204 | rtems_interrupt_lock_acquire( &lock, level ); |
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205 | rtems_test_assert( normal_interrupt_level != get_interrupt_level() ); |
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206 | rtems_interrupt_lock_release( &lock, level ); |
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207 | |
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208 | rtems_test_assert( normal_interrupt_level == get_interrupt_level() ); |
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209 | |
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210 | rtems_interrupt_lock_acquire_isr( &lock ); |
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211 | rtems_test_assert( normal_interrupt_level == get_interrupt_level() ); |
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212 | rtems_interrupt_lock_release_isr( &lock ); |
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213 | |
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214 | rtems_test_assert( normal_interrupt_level == get_interrupt_level() ); |
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215 | } |
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216 | |
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217 | void test_interrupt_inline(void) |
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218 | { |
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219 | rtems_interrupt_level level; |
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220 | rtems_mode level_mode_body; |
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221 | rtems_mode level_mode_macro; |
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222 | bool in_isr; |
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223 | |
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224 | puts( "interrupt is in progress (use body)" ); |
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225 | in_isr = rtems_interrupt_is_in_progress(); |
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226 | if ( in_isr ) { |
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227 | puts( "interrupt reported to be is in progress (body)" ); |
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228 | rtems_test_exit( 0 ); |
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229 | } |
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230 | |
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231 | puts( "interrupt disable (use inline)" ); |
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232 | _Thread_Disable_dispatch(); |
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233 | rtems_interrupt_disable( level ); |
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234 | _Thread_Enable_dispatch(); |
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235 | |
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236 | puts( "interrupt flash (use inline)" ); |
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237 | _Thread_Disable_dispatch(); |
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238 | rtems_interrupt_flash( level ); |
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239 | _Thread_Enable_dispatch(); |
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240 | |
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241 | puts( "interrupt enable (use inline)" ); |
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242 | _Thread_Disable_dispatch(); |
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243 | rtems_interrupt_enable( level ); |
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244 | _Thread_Enable_dispatch(); |
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245 | |
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246 | puts( "interrupt level mode (use inline)" ); |
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247 | level_mode_body = rtems_interrupt_level_body( level ); |
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248 | level_mode_macro = RTEMS_INTERRUPT_LEVEL(level); |
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249 | if ( level_mode_macro == level_mode_body ) { |
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250 | puts( "test case working.." ); |
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251 | } |
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252 | } |
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253 | |
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254 | volatile int isr_in_progress_body; |
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255 | volatile int isr_in_progress_inline; |
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256 | |
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257 | void check_isr_in_progress_inline(void) |
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258 | { |
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259 | bool in_isr; |
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260 | |
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261 | in_isr = rtems_interrupt_is_in_progress(); |
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262 | isr_in_progress_inline = ( in_isr ) ? 1 : 2; |
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263 | } |
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264 | |
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265 | #undef rtems_interrupt_disable |
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266 | extern rtems_interrupt_level rtems_interrupt_disable(void); |
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267 | #undef rtems_interrupt_enable |
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268 | extern void rtems_interrupt_enable(rtems_interrupt_level previous_level); |
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269 | #undef rtems_interrupt_flash |
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270 | extern void rtems_interrupt_flash(rtems_interrupt_level previous_level); |
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271 | #undef rtems_interrupt_is_in_progress |
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272 | extern bool rtems_interrupt_is_in_progress(void); |
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273 | |
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274 | rtems_timer_service_routine test_isr_in_progress( |
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275 | rtems_id timer, |
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276 | void *arg |
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277 | ) |
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278 | { |
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279 | bool in_isr; |
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280 | |
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281 | check_isr_in_progress_inline(); |
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282 | |
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283 | in_isr = rtems_interrupt_is_in_progress(); |
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284 | isr_in_progress_body = ( in_isr ) ? 1 : 2; |
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285 | } |
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286 | |
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287 | void check_isr_worked( |
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288 | char *s, |
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289 | int result |
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290 | ) |
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291 | { |
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292 | switch (result) { |
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293 | case -1: |
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294 | printf( "isr_in_progress(%s) timer did not fire\n", s ); |
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295 | break; |
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296 | case 1: |
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297 | printf( "isr_in_progress(%s) from ISR -- OK\n", s ); |
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298 | break; |
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299 | case 2: |
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300 | printf( "isr_in_progress(%s) from ISR -- returned bad value\n", s); |
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301 | rtems_test_exit(0); |
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302 | break; |
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303 | } |
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304 | } |
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305 | |
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306 | volatile int blocked_task_status; |
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307 | rtems_id blocked_task_id; |
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308 | |
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309 | rtems_task blocked_task( |
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310 | rtems_task_argument argument |
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311 | ) |
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312 | { |
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313 | rtems_status_code status; |
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314 | |
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315 | puts( "Blocking task... suspending self" ); |
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316 | blocked_task_status = 1; |
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317 | status = rtems_task_suspend( RTEMS_SELF ); |
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318 | directive_failed( status, "rtems_task_suspend" ); |
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319 | |
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320 | blocked_task_status = 3; |
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321 | status = rtems_task_delete( RTEMS_SELF ); |
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322 | directive_failed( status, "rtems_task_delete" ); |
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323 | } |
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324 | |
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325 | /* |
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326 | * Timer Service Routine |
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327 | * |
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328 | * If we are in an ISR, then this is a normal clock tick. |
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329 | * If we are not, then it is the test case. |
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330 | */ |
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331 | rtems_timer_service_routine test_unblock_task( |
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332 | rtems_id timer, |
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333 | void *arg |
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334 | ) |
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335 | { |
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336 | bool in_isr; |
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337 | rtems_status_code status; |
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338 | |
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339 | in_isr = rtems_interrupt_is_in_progress(); |
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340 | status = rtems_task_is_suspended( blocked_task_id ); |
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341 | if ( in_isr ) { |
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342 | status = rtems_timer_fire_after( timer, 1, test_unblock_task, NULL ); |
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343 | directive_failed( status, "timer_fire_after failed" ); |
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344 | return; |
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345 | } |
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346 | |
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347 | if ( (status != RTEMS_ALREADY_SUSPENDED) ) { |
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348 | status = rtems_timer_fire_after( timer, 1, test_unblock_task, NULL ); |
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349 | directive_failed( status, "timer_fire_after failed" ); |
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350 | return; |
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351 | } |
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352 | |
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353 | blocked_task_status = 2; |
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354 | _Thread_Disable_dispatch(); |
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355 | status = rtems_task_resume( blocked_task_id ); |
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356 | _Thread_Unnest_dispatch(); |
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357 | #if defined( RTEMS_SMP ) |
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358 | directive_failed_with_level( status, "rtems_task_resume", 1 ); |
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359 | #else |
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360 | directive_failed( status, "rtems_task_resume" ); |
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361 | #endif |
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362 | } |
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363 | |
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364 | rtems_task Init( |
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365 | rtems_task_argument argument |
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366 | ) |
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367 | { |
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368 | rtems_time_of_day time; |
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369 | rtems_status_code status; |
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370 | rtems_interrupt_level level; |
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371 | rtems_mode level_mode_body; |
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372 | rtems_mode level_mode_macro; |
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373 | bool in_isr; |
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374 | rtems_id timer; |
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375 | int i; |
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376 | |
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377 | puts( "\n\n*** TEST 37 ***" ); |
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378 | |
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379 | test_isr_level(); |
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380 | test_isr_locks(); |
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381 | test_interrupt_locks(); |
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382 | |
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383 | build_time( &time, 12, 31, 1988, 9, 0, 0, 0 ); |
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384 | status = rtems_clock_set( &time ); |
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385 | directive_failed( status, "rtems_clock_set" ); |
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386 | |
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387 | /* |
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388 | * Timer used in multiple ways |
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389 | */ |
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390 | status = rtems_timer_create( 1, &timer ); |
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391 | directive_failed( status, "rtems_timer_create" ); |
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392 | |
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393 | /* |
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394 | * Test clock tick from outside ISR |
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395 | */ |
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396 | status = rtems_clock_tick(); |
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397 | directive_failed( status, "rtems_clock_tick" ); |
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398 | puts( "clock_tick from task level" ); |
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399 | |
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400 | /* |
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401 | * Now do a dispatch directly out of a clock tick that is |
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402 | * called from a task. We need to create a task that will |
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403 | * block so we have one to unblock. Then we schedule a TSR |
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404 | * to run in the clock tick but it has to be careful to |
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405 | * make sure it is not called from an ISR and that the |
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406 | * dispatching critical section is managed properly to |
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407 | * make the dispatch happen. |
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408 | */ |
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409 | |
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410 | blocked_task_status = -1; |
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411 | |
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412 | status = rtems_task_create( |
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413 | rtems_build_name( 'T', 'A', '1', ' ' ), |
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414 | 1, |
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415 | RTEMS_MINIMUM_STACK_SIZE, |
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416 | RTEMS_DEFAULT_MODES, |
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417 | RTEMS_DEFAULT_ATTRIBUTES, |
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418 | &blocked_task_id |
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419 | ); |
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420 | directive_failed( status, "rtems_task_create" ); |
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421 | |
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422 | status = rtems_task_start( blocked_task_id, blocked_task, 0 ); |
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423 | directive_failed( status, "rtems_task_start" ); |
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424 | |
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425 | status = rtems_task_wake_after( 10 ); |
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426 | directive_failed( status, "rtems_task_wake_after" ); |
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427 | |
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428 | status = rtems_timer_fire_after( timer, 1, test_unblock_task, NULL ); |
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429 | directive_failed( status, "timer_fire_after failed" ); |
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430 | |
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431 | /* we expect to be preempted from this call */ |
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432 | for ( i=0 ; i<100 && blocked_task_status != 3 ; i++ ) { |
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433 | status = rtems_clock_tick(); |
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434 | directive_failed( status, "rtems_clock_tick" ); |
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435 | } |
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436 | switch ( blocked_task_status ) { |
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437 | case -1: |
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438 | puts( |
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439 | "clock_tick with task preempt -- task blocked, timer did not fire" |
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440 | ); |
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441 | rtems_test_exit(0); |
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442 | break; |
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443 | case 1: |
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444 | puts( "clock_tick with task preempt -- timer fired case 1" ); |
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445 | rtems_test_exit(0); |
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446 | break; |
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447 | case 2: |
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448 | puts( "clock_tick with task preempt -- timer fired case 2" ); |
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449 | rtems_test_exit(0); |
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450 | break; |
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451 | case 3: |
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452 | puts( "clock_tick from task level with preempt -- OK" ); |
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453 | break; |
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454 | } |
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455 | |
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456 | /* |
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457 | * Test interrupt inline versions |
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458 | */ |
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459 | test_interrupt_inline(); |
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460 | |
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461 | /* |
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462 | * Test interrupt bodies |
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463 | */ |
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464 | puts( "interrupt is in progress (use body)" ); |
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465 | in_isr = rtems_interrupt_is_in_progress(); |
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466 | if ( in_isr ) { |
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467 | puts( "interrupt reported to be is in progress (body)" ); |
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468 | rtems_test_exit( 0 ); |
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469 | } |
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470 | |
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471 | puts( "interrupt disable (use body)" ); |
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472 | _Thread_Disable_dispatch(); |
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473 | level = rtems_interrupt_disable(); |
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474 | _Thread_Enable_dispatch(); |
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475 | |
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476 | puts( "interrupt disable (use body)" ); |
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477 | _Thread_Disable_dispatch(); |
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478 | level = rtems_interrupt_disable(); |
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479 | _Thread_Enable_dispatch(); |
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480 | |
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481 | puts( "interrupt flash (use body)" ); |
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482 | _Thread_Disable_dispatch(); |
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483 | rtems_interrupt_flash( level ); |
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484 | _Thread_Enable_dispatch(); |
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485 | |
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486 | puts( "interrupt enable (use body)" ); |
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487 | _Thread_Disable_dispatch(); |
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488 | rtems_interrupt_enable( level ); |
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489 | _Thread_Enable_dispatch(); |
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490 | |
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491 | puts( "interrupt level mode (use body)" ); |
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492 | level_mode_body = rtems_interrupt_level_body( level ); |
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493 | level_mode_macro = RTEMS_INTERRUPT_LEVEL(level); |
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494 | if ( level_mode_macro == level_mode_body ) { |
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495 | puts("test seems to work"); |
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496 | } |
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497 | |
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498 | /* |
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499 | * Test ISR in progress from actual ISR |
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500 | */ |
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501 | isr_in_progress_body = -1; |
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502 | isr_in_progress_inline = -1; |
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503 | |
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504 | status = rtems_timer_fire_after( timer, 10, test_isr_in_progress, NULL ); |
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505 | directive_failed( status, "timer_fire_after failed" ); |
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506 | |
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507 | status = rtems_task_wake_after( 100 ); |
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508 | directive_failed( status, "wake_after failed" ); |
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509 | |
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510 | check_isr_worked( "inline", isr_in_progress_body ); |
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511 | |
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512 | check_isr_worked( "body", isr_in_progress_body ); |
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513 | |
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514 | puts( "*** END OF TEST 37 ***" ); |
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515 | rtems_test_exit( 0 ); |
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516 | } |
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