1 | /* |
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2 | * Copyright (c) 2016 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * The license and distribution terms for this file may be |
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5 | * found in the file LICENSE in this distribution or at |
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6 | * http://www.rtems.org/license/LICENSE. |
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7 | */ |
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8 | |
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9 | #ifdef HAVE_CONFIG_H |
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10 | #include "config.h" |
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11 | #endif |
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12 | |
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13 | #include "tmacros.h" |
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14 | |
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15 | #include <stdio.h> |
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16 | #include <inttypes.h> |
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17 | |
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18 | #include <rtems.h> |
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19 | #include <rtems/counter.h> |
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20 | |
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21 | const char rtems_test_name[] = "TMTIMER 1"; |
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22 | |
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23 | typedef struct { |
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24 | size_t cache_line_size; |
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25 | size_t data_cache_size; |
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26 | int dummy_value; |
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27 | volatile int *dummy_data; |
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28 | rtems_id first; |
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29 | } test_context; |
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30 | |
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31 | static test_context test_instance; |
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32 | |
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33 | static void prepare_cache(test_context *ctx) |
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34 | { |
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35 | volatile int *data = ctx->dummy_data; |
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36 | size_t m = ctx->data_cache_size / sizeof(*data); |
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37 | size_t k = ctx->cache_line_size / sizeof(*data); |
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38 | size_t j = ctx->dummy_value; |
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39 | size_t i; |
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40 | |
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41 | for (i = 0; i < m; i += k) { |
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42 | data[i] = i + j; |
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43 | } |
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44 | |
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45 | ctx->dummy_value = i + j; |
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46 | rtems_cache_invalidate_entire_instruction(); |
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47 | } |
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48 | |
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49 | static void never(rtems_id id, void *arg) |
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50 | { |
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51 | rtems_test_assert(0); |
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52 | } |
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53 | |
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54 | static rtems_interval interval(size_t i) |
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55 | { |
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56 | rtems_interval d = 50000; |
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57 | |
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58 | return i * d + d; |
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59 | } |
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60 | |
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61 | static void test_fire_and_cancel( |
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62 | test_context *ctx, |
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63 | size_t i, |
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64 | size_t j, |
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65 | const char *name |
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66 | ) |
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67 | { |
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68 | rtems_status_code sc; |
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69 | rtems_status_code sc2; |
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70 | rtems_counter_ticks a; |
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71 | rtems_counter_ticks b; |
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72 | rtems_counter_ticks d; |
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73 | rtems_id id; |
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74 | rtems_interrupt_level level; |
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75 | |
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76 | id = ctx->first + i; |
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77 | prepare_cache(ctx); |
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78 | |
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79 | rtems_interrupt_local_disable(level); |
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80 | a = rtems_counter_read(); |
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81 | sc = rtems_timer_fire_after(id, interval(j), never, NULL); |
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82 | sc2 = rtems_timer_cancel(id); |
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83 | b = rtems_counter_read(); |
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84 | rtems_interrupt_local_enable(level); |
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85 | |
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86 | d = rtems_counter_difference(b, a); |
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87 | |
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88 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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89 | rtems_test_assert(sc2 == RTEMS_SUCCESSFUL); |
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90 | |
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91 | printf( |
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92 | "<%s unit=\"ns\">%" PRIu64 "</%s>", |
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93 | name, |
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94 | rtems_counter_ticks_to_nanoseconds(d), |
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95 | name |
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96 | ); |
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97 | } |
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98 | |
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99 | static void test_case(test_context *ctx, size_t j, size_t k) |
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100 | { |
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101 | rtems_status_code sc; |
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102 | size_t s; |
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103 | size_t t; |
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104 | |
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105 | s = j - k; |
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106 | |
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107 | for (t = 0; t < s; ++t) { |
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108 | size_t u = k + t; |
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109 | |
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110 | sc = rtems_timer_fire_after(ctx->first + u, interval(u + 1), never, NULL); |
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111 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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112 | } |
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113 | |
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114 | printf(" <Sample>\n <ActiveTimers>%zu</ActiveTimers>", j); |
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115 | |
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116 | test_fire_and_cancel(ctx, j, 0, "First"); |
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117 | test_fire_and_cancel(ctx, j, j / 2, "Middle"); |
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118 | test_fire_and_cancel(ctx, j, j + 1, "Last"); |
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119 | |
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120 | printf("\n </Sample>\n"); |
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121 | } |
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122 | |
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123 | static void test(void) |
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124 | { |
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125 | test_context *ctx = &test_instance; |
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126 | rtems_status_code sc; |
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127 | rtems_id id; |
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128 | rtems_name n; |
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129 | size_t j; |
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130 | size_t k; |
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131 | size_t timer_count; |
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132 | |
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133 | ctx->cache_line_size = rtems_cache_get_data_line_size(); |
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134 | if (ctx->cache_line_size == 0) { |
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135 | ctx->cache_line_size = 32; |
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136 | } |
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137 | |
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138 | ctx->data_cache_size = rtems_cache_get_data_cache_size(0); |
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139 | if (ctx->data_cache_size == 0) { |
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140 | ctx->data_cache_size = ctx->cache_line_size; |
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141 | } |
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142 | |
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143 | ctx->dummy_data = malloc(ctx->data_cache_size); |
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144 | rtems_test_assert(ctx->dummy_data != NULL); |
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145 | |
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146 | n = 1; |
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147 | timer_count = 1; |
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148 | |
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149 | sc = rtems_timer_create(n, &ctx->first); |
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150 | rtems_test_assert(sc == RTEMS_SUCCESSFUL); |
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151 | rtems_test_assert(rtems_object_id_get_index(ctx->first) == n); |
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152 | |
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153 | while (true) { |
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154 | ++n; |
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155 | |
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156 | sc = rtems_timer_create(n, &id); |
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157 | if (sc != RTEMS_SUCCESSFUL) { |
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158 | break; |
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159 | } |
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160 | |
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161 | rtems_test_assert(rtems_object_id_get_index(id) == n); |
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162 | timer_count = n; |
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163 | } |
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164 | |
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165 | printf("<TMTimer01 timerCount=\"%zu\">\n", timer_count); |
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166 | |
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167 | k = 0; |
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168 | j = 0; |
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169 | |
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170 | while (j < timer_count) { |
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171 | test_case(ctx, j, k); |
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172 | k = j; |
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173 | j = (123 * (j + 1) + 99) / 100; |
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174 | } |
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175 | |
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176 | test_case(ctx, n - 2, k); |
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177 | |
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178 | printf("</TMTimer01>\n"); |
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179 | } |
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180 | |
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181 | static void Init(rtems_task_argument arg) |
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182 | { |
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183 | TEST_BEGIN(); |
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184 | |
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185 | test(); |
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186 | |
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187 | TEST_END(); |
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188 | rtems_test_exit(0); |
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189 | } |
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190 | |
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191 | #define CONFIGURE_MICROSECONDS_PER_TICK 50000 |
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192 | |
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193 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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194 | #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER |
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195 | |
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196 | #define CONFIGURE_UNIFIED_WORK_AREAS |
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197 | |
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198 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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199 | #define CONFIGURE_MAXIMUM_TIMERS rtems_resource_unlimited(32) |
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200 | |
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201 | #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION |
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202 | |
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203 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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204 | |
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205 | #define CONFIGURE_INIT |
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206 | |
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207 | #include <rtems/confdefs.h> |
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