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1 /*================================================================= |
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2 // |
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3 // kclock0.c |
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4 // |
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5 // Kernel C API Clock test 0 |
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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 some basic clock functions. |
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36 //####DESCRIPTIONEND#### |
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37 */ |
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38 |
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39 #include <cyg/kernel/kapi.h> |
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40 |
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41 #include <cyg/infra/testcase.h> |
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42 |
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43 #ifdef CYGVAR_KERNEL_COUNTERS_CLOCK |
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44 |
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45 #ifdef CYGFUN_KERNEL_API_C |
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46 |
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47 #include "testaux.h" |
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48 |
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49 cyg_alarm_t call_me; |
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50 |
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51 cyg_counter counter0o, counter1o; |
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52 cyg_handle_t counter0, counter1; |
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53 |
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54 cyg_alarm alarmo[3]; |
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55 cyg_handle_t alarm0, alarm1, alarm2; |
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56 |
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57 cyg_resolution_t res, res0, res1; |
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58 |
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59 cyg_clock clock0o; |
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60 cyg_handle_t clock0; |
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61 |
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62 const cyg_uint32 big_number = 3333222111u; |
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63 |
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64 cyg_bool_t flash( void ) |
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65 { |
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66 cyg_counter_create( &counter0, &counter0o ); |
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67 cyg_counter_create( &counter1, &counter1o ); |
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68 |
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69 cyg_alarm_create( counter0, |
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70 call_me, |
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71 (cyg_addrword_t)12, |
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72 &alarm0, |
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73 &alarmo[0]); |
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74 |
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75 res.dividend = 1; |
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76 res.divisor = 2; |
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77 |
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78 cyg_clock_create( res, &clock0, &clock0o ); |
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79 cyg_clock_delete( clock0 ); |
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80 |
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81 cyg_alarm_delete( alarm0 ); |
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82 |
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83 cyg_counter_delete( counter0 ); |
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84 cyg_counter_delete( counter1 ); |
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85 |
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86 return true; |
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87 } |
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88 |
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89 /* Testing alarms |
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90 // |
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91 // call_me is a function that will be called when an alarm is |
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92 // triggered. It updates a global variable called which is CHECKed |
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93 // explicitly to see if the approriate alarms have been called. |
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94 */ |
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95 |
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96 cyg_uint16 called = 0x0; |
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97 |
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98 void call_me(cyg_handle_t alarm, cyg_addrword_t data) |
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99 { |
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100 called ^= (int)data; |
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101 } |
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102 |
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103 void call_me2(cyg_handle_t alarm, cyg_addrword_t data) |
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104 { |
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105 call_me(alarm, (cyg_addrword_t)((int)data^0x10)); |
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106 } |
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107 |
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108 |
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109 void kclock0_main(void) |
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110 { |
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111 CYG_TEST_INIT(); |
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112 |
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113 CHECK(flash()); |
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114 CHECK(flash()); |
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115 |
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116 cyg_counter_create( &counter0, &counter0o); |
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117 |
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118 CHECK( 0 == cyg_counter_current_value( counter0 ) ); |
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119 |
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120 cyg_counter_tick(counter0); |
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121 |
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122 CHECK( 1 == cyg_counter_current_value(counter0) ); |
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123 |
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124 cyg_counter_tick(counter0); |
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125 |
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126 CHECK( 2 == cyg_counter_current_value(counter0) ); |
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127 |
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128 cyg_counter_set_value( counter0, 0xffffffff ); |
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129 |
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130 CHECK( 0xffffffff == cyg_counter_current_value(counter0) ); |
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131 |
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132 cyg_counter_tick(counter0); // Overflows 32 bits |
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133 |
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134 CHECK( 0x100000000ULL == cyg_counter_current_value(counter0) ); |
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135 |
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136 cyg_counter_set_value(counter0, 11); |
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137 CHECK( 11 == cyg_counter_current_value(counter0) ); |
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138 |
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139 /* the call_me functions cause the "called" bits to toggle |
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140 // checking the value of called checks the parity of # of calls |
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141 // made by each alarm. |
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142 */ |
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143 |
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144 cyg_alarm_create(counter0, |
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145 call_me, (cyg_addrword_t)0x1, &alarm0, &alarmo[0]); |
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146 cyg_alarm_create(counter0, |
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147 call_me, (cyg_addrword_t)0x2, &alarm1, &alarmo[1]); |
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148 cyg_alarm_create(counter0, |
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149 call_me2, (cyg_addrword_t)0x4, &alarm2, &alarmo[2]); |
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150 |
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151 CHECK( 0x00 == called ); |
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152 cyg_alarm_initialize(alarm0, 12,3); |
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153 cyg_alarm_initialize(alarm2, 21,2); |
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154 CHECK( 0x00 == called ); |
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155 |
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156 cyg_counter_tick(counter0); /* 12 a0 */ |
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157 CHECK( 0x01 == called ); |
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158 |
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159 cyg_alarm_initialize(alarm1, 13,0); |
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160 cyg_counter_tick(counter0); /* 13 a1 */ |
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161 CHECK( 0x03 == called ); |
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162 |
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163 cyg_alarm_initialize(alarm1, 17,0); |
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164 cyg_counter_tick(counter0); /* 14 */ |
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165 CHECK( 0x03 == called ); |
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166 |
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167 cyg_counter_tick(counter0); /* 15 a0 */ |
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168 CHECK( 0x02 == called ); |
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169 |
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170 cyg_counter_tick(counter0); /* 16 */ |
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171 cyg_counter_tick(counter0); /* 17 a1 */ |
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172 CHECK( 0x00 == called ); |
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173 |
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174 cyg_counter_tick(counter0); /* 18 a0 */ |
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175 CHECK( 0x01 == called ); |
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176 |
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177 cyg_counter_tick(counter0); /* 19 */ |
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178 cyg_counter_tick(counter0); /* 20 */ |
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179 cyg_counter_tick(counter0); /* 21 a0 a2 */ |
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180 CHECK( 0x14 == called ); |
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181 |
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182 cyg_counter_tick(counter0); /* 22 */ |
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183 cyg_counter_tick(counter0); /* 23 a2 */ |
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184 CHECK( 0x00 == called ); |
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185 |
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186 cyg_alarm_disable(alarm2); |
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187 |
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188 cyg_counter_tick(counter0); /* 24 a0 */ |
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189 cyg_counter_tick(counter0); /* 25 */ |
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190 CHECK( 0x01 == called ); |
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191 |
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192 cyg_alarm_enable(alarm2); /* a2 (enabled at 25) */ |
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193 CHECK( 0x15 == called ); |
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194 |
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195 cyg_counter_tick(counter0); /* 26 */ |
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196 CHECK( 0x15 == called ); |
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197 |
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198 cyg_counter_tick(counter0); /* 27 a0 a2 */ |
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199 cyg_counter_tick(counter0); /* 28 */ |
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200 CHECK( 0x00 == called ); |
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201 |
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202 cyg_counter_tick(counter0); /* 29 a2 */ |
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203 cyg_counter_tick(counter0); /* 30 a0 */ |
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204 cyg_counter_tick(counter0); /* 31 a2 */ |
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205 CHECK( 0x01 == called ); |
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206 |
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207 res0.dividend = 100; |
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208 res0.divisor = 3; |
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209 |
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210 cyg_clock_create( res0, &clock0, &clock0o ); |
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211 |
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212 res1 = cyg_clock_get_resolution(clock0); |
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213 CHECK( res0.dividend == res1.dividend ); |
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214 CHECK( res0.divisor == res1.divisor ); |
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215 |
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216 res1.dividend = 12; |
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217 res1.divisor = 25; |
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218 |
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219 cyg_clock_set_resolution(clock0, res1); |
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220 res0 = cyg_clock_get_resolution(clock0); |
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221 CHECK( res0.dividend == res1.dividend ); |
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222 CHECK( res0.divisor == res1.divisor ); |
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223 |
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224 cyg_clock_to_counter(clock0, &counter1); |
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225 |
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226 CHECK( 0 == cyg_counter_current_value( counter1 ) ); |
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227 CHECK( 0 == cyg_current_time() ); |
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228 |
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229 cyg_counter_tick(counter1); |
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230 |
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231 CHECK( 1 == cyg_counter_current_value(counter1) ); |
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232 |
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233 res0 = cyg_clock_get_resolution(cyg_real_time_clock()); |
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234 |
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235 /* Current time should be 0 as interrupts will still be disabled */ |
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236 CHECK( 0 == cyg_current_time() ); |
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237 |
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238 CYG_TEST_PASS_FINISH("Kernel C API Clock 0 OK"); |
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239 } |
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240 |
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241 externC void |
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242 cyg_start( void ) |
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243 { |
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244 kclock0_main(); |
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245 } |
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246 |
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247 #else // def CYGFUN_KERNEL_API_C |
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248 #define N_A_MSG "Kernel C API layer disabled" |
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249 #endif // def CYGFUN_KERNEL_API_C |
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250 #else // def CYGVAR_KERNEL_COUNTERS_CLOCK |
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251 #define N_A_MSG "Kernel real-time clock disabled" |
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252 #endif // def CYGVAR_KERNEL_COUNTERS_CLOCK |
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253 |
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254 #ifdef N_A_MSG |
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255 externC void |
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256 cyg_start( void ) |
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257 { |
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258 CYG_TEST_INIT(); |
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259 CYG_TEST_PASS_FINISH("N/A: " N_A_MSG); |
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260 } |
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261 #endif // N_A_MSG |
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262 |
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263 // EOF kclock0.c |
