1 | /* Init |
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2 | * |
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3 | * This routine is the initialization task for this test program. |
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4 | * It is called from init_exec and has the responsibility for creating |
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5 | * and starting the tasks that make up the test. If the time of day |
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6 | * clock is required for the test, it should also be set to a known |
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7 | * value by this function. |
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8 | * |
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9 | * Input parameters: NONE |
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10 | * |
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11 | * Output parameters: NONE |
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12 | * |
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13 | * COPYRIGHT (c) 1989-1999. |
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14 | * On-Line Applications Research Corporation (OAR). |
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15 | * |
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16 | * The license and distribution terms for this file may be |
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17 | * found in the file LICENSE in this distribution or at |
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18 | * http://www.rtems.com/license/LICENSE. |
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19 | * |
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20 | * OAR init.c Template modified by T. Straumann who provided |
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21 | * the implementation of this application. |
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22 | */ |
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23 | |
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24 | #define CONFIGURE_INIT |
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25 | |
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26 | #include <rtems.h> |
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27 | |
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28 | /* functions */ |
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29 | rtems_task Init( |
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30 | rtems_task_argument argument |
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31 | ); |
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32 | |
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33 | /* configuration information */ |
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34 | #include <bsp.h> /* for device driver prototypes */ |
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35 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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36 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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37 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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38 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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39 | #define CONFIGURE_USE_MINIIMFS_AS_BASE_FILESYSTEM |
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40 | #include <confdefs.h> |
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41 | |
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42 | #include <stdio.h> |
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43 | #include <stdlib.h> |
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44 | |
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45 | #include <bsp/irq.h> |
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46 | #include <rtems/bspIo.h> |
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47 | |
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48 | |
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49 | void noop(){} |
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50 | int connected() {return 1;} |
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51 | |
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52 | rtems_irq_connect_data blah = { 0, 0, noop, noop, connected }; |
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53 | extern void discovery_pic_set_debug_irq(); |
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54 | |
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55 | #define WIRE_IRQ (BSP_IRQ_GPP_0 + 6) |
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56 | #define ABRT_IRQ (BSP_IRQ_GPP_0 + 2) |
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57 | |
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58 | static volatile int testno=0; |
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59 | static volatile int wloops =0; |
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60 | static volatile int aloops =0; |
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61 | |
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62 | void wire_hdl() |
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63 | { |
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64 | if ( 1 == testno ) { |
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65 | BSP_disable_irq_at_pic(WIRE_IRQ); |
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66 | } |
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67 | |
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68 | if ( 2 == testno || 3 == testno ) { |
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69 | discovery_pic_set_debug_irq(0); |
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70 | printk("WIRE -- this message should be printed %s\n", 3==testno ? "FIRST":"SECOND"); |
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71 | } else { |
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72 | } |
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73 | |
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74 | /* assume the driver checks for less than 1000 loops */ |
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75 | if ( ++wloops > 1000) { |
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76 | printk("wire IRQ. FAILURE -- driver couldn't catch runaway ISR. Disabling IRQ source.\n"); |
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77 | discovery_pic_set_debug_irq(0); |
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78 | BSP_disable_irq_at_pic(WIRE_IRQ); |
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79 | } |
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80 | /* |
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81 | */ |
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82 | } |
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83 | |
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84 | void abrt_hdl() |
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85 | { |
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86 | aloops++; |
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87 | if ( 2 == testno || 3 == testno ) { |
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88 | discovery_pic_set_debug_irq(1); |
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89 | printk("ABRT -- this message should be printed %s\n", 2==testno ? "FIRST":"SECOND"); |
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90 | } else |
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91 | printk("ABRT IRQ\n"); |
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92 | |
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93 | if ( 1== testno ) { |
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94 | BSP_enable_irq_at_pic(WIRE_IRQ); |
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95 | } |
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96 | BSP_disable_irq_at_pic(ABRT_IRQ); |
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97 | } |
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98 | |
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99 | |
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100 | rtems_task Init( |
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101 | rtems_task_argument ignored |
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102 | ) |
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103 | { |
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104 | blah.name = WIRE_IRQ; |
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105 | blah.hdl = wire_hdl; |
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106 | if (!BSP_install_rtems_irq_handler(&blah)) { |
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107 | fprintf(stderr,"installing handler 1 failed\n"); |
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108 | } |
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109 | blah.name = ABRT_IRQ; |
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110 | blah.hdl = abrt_hdl; |
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111 | if (!BSP_install_rtems_irq_handler(&blah)) { |
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112 | fprintf(stderr,"installing handler 2 failed\n"); |
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113 | } |
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114 | printf("Hello, testing the ISR dispatcher...\n"); |
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115 | printf(" 1. Trying to catch runaway interrupt\n"); |
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116 | printf(" If the system freezes, the test failed!\n"); |
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117 | fflush(stdout); sleep(1); |
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118 | aloops = wloops = 0; |
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119 | discovery_pic_set_debug_irq(1); |
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120 | printf(" >>> %s\n", wloops<1000 ? "SUCCESS" : "FAILED"); |
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121 | discovery_pic_set_debug_irq(0); |
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122 | |
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123 | testno++; |
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124 | printf(" 2. Testing enabling / disabling interrupt from ISR\n"); |
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125 | printf(" Hit the ABORT key for this test\n"); |
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126 | fflush(stdout); sleep(1); |
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127 | aloops = wloops = 0; |
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128 | BSP_disable_irq_at_pic(WIRE_IRQ); |
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129 | BSP_irq_set_priority(ABRT_IRQ,1); |
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130 | BSP_enable_irq_at_pic(ABRT_IRQ); |
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131 | discovery_pic_set_debug_irq(1); |
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132 | while (!aloops) |
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133 | ; |
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134 | discovery_pic_set_debug_irq(0); |
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135 | sleep(2); |
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136 | printf(" >>> disabling ABRT IRQ from isr %s\n", 1==aloops ? "SUCCESS":"FAILURE"); |
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137 | printf(" flashing WIRE IRQ from isr %s\n", 1==wloops ? "SUCCESS":"FAILURE"); |
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138 | |
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139 | |
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140 | testno++; |
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141 | printf(" 3. Testing interrupt priorities\n"); |
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142 | BSP_irq_set_priority(ABRT_IRQ,2); |
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143 | BSP_irq_set_priority(WIRE_IRQ,2); |
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144 | BSP_enable_irq_at_pic(ABRT_IRQ); |
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145 | BSP_enable_irq_at_pic(WIRE_IRQ); |
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146 | printf(" Hit the ABORT key for this test\n"); |
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147 | fflush(stdout); sleep(1); |
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148 | aloops = wloops = 0; |
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149 | while (!aloops) |
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150 | ; |
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151 | sleep(2); |
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152 | testno++; |
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153 | printf(" Now we are raising the priority of the wire interrupt\n"); |
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154 | BSP_irq_set_priority(WIRE_IRQ,3); |
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155 | BSP_enable_irq_at_pic(ABRT_IRQ); |
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156 | printf(" Hit the ABORT key for this test\n"); |
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157 | fflush(stdout); sleep(1); |
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158 | aloops = wloops = 0; |
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159 | while (!aloops) |
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160 | ; |
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161 | |
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162 | sleep(2); |
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163 | printf( "That's it; we're done...\n" ); |
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164 | exit( 0 ); |
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165 | } |
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