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annotate packages/io/watchdog/current/tests/watchdog2.cxx @ 1777:c16341b1bac6 default tip

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* Added execute permissions to files missed in conversion from CVS
author alexs
date Mon, 12 Oct 2009 02:26:09 +0100
parents d2c90368aeef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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94
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1 //==========================================================================
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2 //
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3 // watchdog2.cxx
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4 //
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5 // Watchdog test
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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37 // at http://sources.redhat.com/ecos/ecos-license/
208
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
94
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40 //==========================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): nickg
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44 // Contributors: nickg, jskov
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45 // Date: 1998-07-20
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46 // Description: Tests the watchdog driver.
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47 // This test tries to make sure the watchdog does not trigger
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48 // early. On boards where the watchdog performs a reset on
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49 // timeout, there will be no FAIL message - but it should
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50 // PASS even on those boards when the driver implementation
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51 // is correct.
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52 //
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53 //####DESCRIPTIONEND####
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54 // -------------------------------------------------------------------------
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55
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56 #include <pkgconf/kernel.h>
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57
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58 #include <cyg/kernel/thread.hxx>
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59 #include <cyg/kernel/thread.inl>
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60 #include <cyg/kernel/sched.hxx>
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61 #include <cyg/kernel/mutex.hxx>
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62 #include <cyg/kernel/sema.hxx>
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63 #include <cyg/kernel/clock.hxx>
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64
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65 #include <cyg/kernel/diag.h>
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66
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67 #include <cyg/io/watchdog.hxx>
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68
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69 #include <cyg/infra/testcase.h>
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70 #include <cyg/infra/diag.h>
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71
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72 #if defined(CYGFUN_KERNEL_THREADS_TIMER) && \
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73 defined(CYGVAR_KERNEL_COUNTERS_CLOCK)
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74
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75 #include <cyg/kernel/sched.inl>
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76
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77 // -------------------------------------------------------------------------
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78 // Data for the test
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79
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80 #ifdef CYGNUM_HAL_STACK_SIZE_TYPICAL
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81 #define STACKSIZE CYGNUM_HAL_STACK_SIZE_TYPICAL
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82 #else
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83 #define STACKSIZE (2*1024) // size of thread stack
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84 #endif
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85
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86 char thread_stack[STACKSIZE];
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87
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88 inline void *operator new(size_t size, void *ptr) { return ptr; };
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89
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90 // array of threads.
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91 char thread[sizeof(Cyg_Thread)];
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92
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93 Cyg_Thread *th;
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94
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95 //cyg_tick_count one_sec;
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96 cyg_tick_count watchdog_delay;
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97 volatile bool watchdog_fired;
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98 volatile cyg_tick_count watchdog_time;
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99
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100 #define WATCHDOG_CYCLES_PER_LOOP_HW 7
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101 #define WATCHDOG_CYCLES_PER_LOOP_SIM 2
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102 #define WATCHDOG_TICKS_TILL_TIMEOUT 10
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103
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104 // -------------------------------------------------------------------------
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105 // Action functions:
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106
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107 #ifdef CYGINT_WATCHDOG_RESETS_ON_TIMEOUT
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108 void watchdog_action1( CYG_ADDRWORD data )
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109 {
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110 watchdog_fired = true;
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111 watchdog_time = Cyg_Clock::real_time_clock->current_value();
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112 }
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113 #endif
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114
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115 // -------------------------------------------------------------------------
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116 // Thread body
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117
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118 void watchdog_thread( CYG_ADDRWORD id )
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119 {
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120 cyg_tick_count watchdog_start_time;
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121 cyg_tick_count thread_start_time, thread_end_time;
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122 cyg_ucount8 watchdog_cycles_per_loop;
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123
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124 if (cyg_test_is_simulator) {
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125 watchdog_cycles_per_loop = WATCHDOG_CYCLES_PER_LOOP_SIM;
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126 } else {
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127 watchdog_cycles_per_loop = WATCHDOG_CYCLES_PER_LOOP_HW;
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128 }
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129
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130 CYG_TEST_INFO("Testing that watchdog does not fire early");
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131
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132 watchdog_fired = false;
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133 Cyg_Watchdog::watchdog.start();
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134
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135 #ifdef CYGINT_WATCHDOG_RESETS_ON_TIMEOUT
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136 // First test that the watchdog does not trigger when being reset.
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137 Cyg_Watchdog_Action wdaction( watchdog_action1, 0 );
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138 wdaction.install();
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139 #endif
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140 Cyg_Watchdog::watchdog.reset();
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141
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142 watchdog_start_time = Cyg_Clock::real_time_clock->current_value();
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143 watchdog_fired = false;
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144
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145 for( cyg_ucount8 i = 0; i < watchdog_cycles_per_loop; i++ ) {
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146 thread_start_time = Cyg_Clock::real_time_clock->current_value();
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147 th->delay( watchdog_delay-2 );
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148 Cyg_Watchdog::watchdog.reset();
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149 if (watchdog_fired) {
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150 thread_end_time = Cyg_Clock::real_time_clock->current_value();
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151 diag_printf("Watchdog fired prematurely after %d ticks\n",
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152 (int)(watchdog_time - watchdog_start_time));
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153 diag_printf(" Thread slept for %d ticks, loop #%d\n",
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154 (int)(thread_end_time - thread_start_time), i);
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155 CYG_TEST_FAIL_FINISH("Watchdog triggered unexpectedly");
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156 break;
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157 } else {
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158 // No printing - delays are fatal!
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159 // CYG_TEST_STILL_ALIVE(i, "Resetting watchdog...");
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160 Cyg_Watchdog::watchdog.reset();
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161 watchdog_fired = false;
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162 watchdog_start_time = Cyg_Clock::real_time_clock->current_value();
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163 }
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164 }
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165
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166 CYG_TEST_PASS_FINISH("Watchdog OK");
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167 }
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168
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169 // -------------------------------------------------------------------------
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170
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171
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172 externC void
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173 cyg_start( void )
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174 {
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175 CYG_TEST_INIT();
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176
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177 #if !defined(CYGIMP_WATCHDOG_EMULATE) && defined(CYGPKG_HAL_MN10300_STDEVAL1)
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178 // Workaround for PR 17974
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179 if( cyg_test_is_simulator )
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180 CYG_TEST_NA("Watchdog device not implemented in MN10300 simulator.");
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181 #endif
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182
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183
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184 Cyg_Clock::cyg_resolution res = Cyg_Clock::real_time_clock->get_resolution();
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185
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186 cyg_uint64 wres = Cyg_Watchdog::watchdog.get_resolution();
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187
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188 // Calculate how many clock ticks there are in a watchdog cycle.
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189
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190 watchdog_delay = ((cyg_tick_count)wres * (cyg_tick_count)res.divisor );
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191 watchdog_delay /= res.dividend;
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192
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193 th = new((void *)&thread) Cyg_Thread(CYG_SCHED_DEFAULT_INFO,
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194 watchdog_thread,
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195 0,
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196 "watchdog_thread",
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197 (CYG_ADDRESS)thread_stack,
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198 STACKSIZE
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199 );
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200
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201 th->resume();
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202
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203 // Get the world going
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204 Cyg_Scheduler::scheduler.start();
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205
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206 }
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207
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208 #else // if defined(CYGFUN_KERNEL_THREADS_TIMER) etc...
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209
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210 externC void
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211 cyg_start( void )
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212 {
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213 CYG_TEST_INIT();
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214 CYG_TEST_NA("Kernel real-time clock/threads timer disabled");
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215 }
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216
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217 #endif // if defined(CYGFUN_KERNEL_THREADS_TIMER) etc...
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218
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219 // -------------------------------------------------------------------------
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220 // EOF watchdog.cxx