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1 /*================================================================= |
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2 // |
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3 // kclock1.c |
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4 // |
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5 // Kernel C API Clock test 1 - Real Time Clock |
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6 // |
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7 //========================================================================== |
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8 //####COPYRIGHTBEGIN#### |
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9 // |
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10 // ------------------------------------------- |
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11 // The contents of this file are subject to the Cygnus eCos Public License |
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12 // Version 1.0 (the "License"); you may not use this file except in |
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13 // compliance with the License. You may obtain a copy of the License at |
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14 // http://sourceware.cygnus.com/ecos |
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15 // |
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16 // Software distributed under the License is distributed on an "AS IS" |
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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18 // License for the specific language governing rights and limitations under |
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19 // the License. |
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20 // |
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21 // The Original Code is eCos - Embedded Cygnus Operating System, released |
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22 // September 30, 1998. |
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23 // |
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24 // The Initial Developer of the Original Code is Cygnus. Portions created |
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25 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved. |
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26 // ------------------------------------------- |
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27 // |
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28 //####COPYRIGHTEND#### |
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29 //========================================================================== |
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30 //#####DESCRIPTIONBEGIN#### |
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31 // |
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32 // Author(s): dsm |
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33 // Contributors: dsm |
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34 // Date: 1998-03-20 |
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35 // Description: Tests the Kernel Real Time Clock |
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36 // This test creates a thread, starts the scheduler and |
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37 // delays for a time of about 5 seconds. This test should |
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38 // be expected to run for about this length of time. |
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39 // Omissions: |
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40 // Doesn't test alarms attached to RTC. |
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41 // Assumptions: |
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42 // CYGVAR_KERNEL_COUNTERS_CLOCK must be set. |
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43 // Resolution of clock small compared with 5s. |
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44 // Overhead small compared with 5s. |
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45 // Options: |
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46 // CYGIMP_KERNEL_COUNTERS_SINGLE_LIST |
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47 // CYGIMP_KERNEL_COUNTERS_MULTI_LIST |
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48 // CYGVAR_KERNEL_COUNTERS_CLOCK |
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49 // CYGNUM_KERNEL_COUNTERS_MULTI_LIST_SIZE |
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50 //####DESCRIPTIONEND#### |
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51 */ |
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52 |
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53 #include <cyg/kernel/kapi.h> |
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54 |
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55 #include <cyg/infra/testcase.h> |
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56 |
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57 #if defined(CYG_HAL_MIPS_SIM) |
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58 |
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59 // Reduce time in simulated TX39 so that |
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60 // it runs within the timeout. |
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61 |
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62 #define TEST_DELAY 1000000000ll |
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63 |
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64 #else |
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65 |
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66 #define TEST_DELAY 5000000000ll |
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67 |
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68 #endif |
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69 |
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70 #if defined(CYGVAR_KERNEL_COUNTERS_CLOCK) \ |
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71 && defined(CYGFUN_KERNEL_THREADS_TIMER) |
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72 |
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73 #ifdef CYGFUN_KERNEL_API_C |
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74 |
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75 #include "testaux.h" |
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76 |
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77 #define NTHREADS 1 |
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78 #define STACKSIZE 4096 |
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79 |
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80 static cyg_handle_t thread[NTHREADS]; |
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81 |
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82 static cyg_thread thread_obj[NTHREADS]; |
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83 static char stack[NTHREADS][STACKSIZE]; |
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84 |
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85 static void entry0( cyg_addrword_t data ) |
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86 { |
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87 cyg_resolution_t res; |
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88 cyg_uint32 ticks; |
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89 cyg_tick_count_t count0, count1; |
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90 cyg_handle_t rtclock, rtcounter; |
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91 |
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92 rtclock = cyg_real_time_clock(); |
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93 cyg_clock_to_counter(rtclock, &rtcounter); |
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94 |
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95 res = cyg_clock_get_resolution (rtclock); |
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96 |
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97 /* RTC takes res.dividend/res.divisor ns/tick */ |
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98 ticks = ((cyg_uint64)TEST_DELAY * res.divisor) / res.dividend; |
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99 |
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100 count0 = cyg_counter_current_value(rtcounter); |
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101 cyg_thread_delay(ticks); |
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102 count1 = cyg_counter_current_value(rtcounter); |
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103 |
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104 CYG_TEST_CHECK(count0+ticks <= count1, |
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105 "real time clock's counter not counting"); |
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106 |
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107 CYG_TEST_CHECK(count1 <= cyg_current_time(),"cyg_current_time()"); |
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108 |
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109 CYG_TEST_PASS_FINISH("Kernel C API Clock 1 OK"); |
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110 } |
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111 |
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112 void kclock1_main( void ) |
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113 { |
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114 CYG_TEST_INIT(); |
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115 |
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116 cyg_thread_create(4, entry0 , (cyg_addrword_t)0, "kclock1", |
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117 (void *)stack[0], STACKSIZE, &thread[0], &thread_obj[0]); |
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118 cyg_thread_resume(thread[0]); |
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119 |
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120 cyg_scheduler_start(); |
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121 } |
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122 |
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123 externC void |
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124 cyg_start( void ) |
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125 { |
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126 kclock1_main(); |
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127 } |
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128 |
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129 #else // def CYGFUN_KERNEL_API_C |
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130 #define N_A_MSG "Kernel C API layer disabled" |
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131 #endif // def CYGFUN_KERNEL_API_C |
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132 #else // def CYGVAR_KERNEL_COUNTERS_CLOCK && CYGFUN_KERNEL_THREADS_TIMER |
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133 #define N_A_MSG "Kernel real-time clock/threads timer disabled" |
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134 #endif // def CYGVAR_KERNEL_COUNTERS_CLOCK && CYGFUN_KERNEL_THREADS_TIMER |
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135 |
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136 #ifdef N_A_MSG |
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137 externC void |
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138 cyg_start( void ) |
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139 { |
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140 CYG_TEST_INIT(); |
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141 CYG_TEST_PASS_FINISH("N/A: " N_A_MSG); |
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142 } |
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143 #endif // N_A_MSG |
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144 |
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145 // EOF kclock1.c |
