1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup test_bdbuf |
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5 | * |
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6 | * @brief Bdbuf test for disk driver error handling.. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2009-2012 embedded brains GmbH. All rights reserved. |
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11 | * |
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12 | * embedded brains GmbH |
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13 | * Obere Lagerstr. 30 |
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14 | * 82178 Puchheim |
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15 | * Germany |
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16 | * <rtems@embedded-brains.de> |
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17 | * |
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18 | * The license and distribution terms for this file may be |
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19 | * found in the file LICENSE in this distribution or at |
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20 | * http://www.rtems.com/license/LICENSE. |
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21 | */ |
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22 | |
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23 | #ifdef HAVE_CONFIG_H |
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24 | #include "config.h" |
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25 | #endif |
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26 | |
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27 | #include <assert.h> |
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28 | #include <errno.h> |
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29 | |
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30 | #include <rtems.h> |
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31 | #include <rtems/bdbuf.h> |
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32 | #include <rtems/diskdevs.h> |
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33 | |
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34 | /* forward declarations to avoid warnings */ |
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35 | static rtems_task Init(rtems_task_argument argument); |
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36 | |
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37 | #define ASSERT_SC(sc) assert((sc) == RTEMS_SUCCESSFUL) |
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38 | |
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39 | #define BLOCK_SIZE sizeof(char) |
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40 | |
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41 | #define BLOCK_COUNT 4 |
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42 | |
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43 | #define BLOCK_READ_IO_ERROR 0 |
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44 | #define BLOCK_READ_UNSATISFIED 1 |
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45 | #define BLOCK_READ_SUCCESSFUL 2 |
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46 | #define BLOCK_WRITE_IO_ERROR 3 |
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47 | |
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48 | static char disk_data [BLOCK_COUNT]; |
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49 | |
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50 | static const rtems_driver_address_table disk_ops = { |
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51 | .initialization_entry = NULL, |
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52 | RTEMS_GENERIC_BLOCK_DEVICE_DRIVER_ENTRIES |
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53 | }; |
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54 | |
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55 | static int disk_ioctl(rtems_disk_device *dd, uint32_t req, void *arg) |
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56 | { |
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57 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
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58 | |
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59 | if (req == RTEMS_BLKIO_REQUEST) { |
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60 | rtems_blkdev_request *r = arg; |
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61 | uint32_t i = 0; |
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62 | |
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63 | for (i = 0; i < r->bufnum; ++i) { |
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64 | rtems_blkdev_sg_buffer *sg = &r->bufs [i]; |
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65 | char *buf = sg->buffer; |
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66 | |
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67 | if (sg->length == 1) { |
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68 | switch (r->req) { |
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69 | case RTEMS_BLKDEV_REQ_READ: |
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70 | switch (sg->block) { |
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71 | case BLOCK_READ_IO_ERROR: |
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72 | sc = RTEMS_IO_ERROR; |
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73 | break; |
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74 | case BLOCK_READ_UNSATISFIED: |
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75 | sc = RTEMS_UNSATISFIED; |
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76 | break; |
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77 | case BLOCK_READ_SUCCESSFUL: |
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78 | case BLOCK_WRITE_IO_ERROR: |
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79 | *buf = disk_data [sg->block]; |
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80 | break; |
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81 | default: |
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82 | sc = RTEMS_IO_ERROR; |
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83 | break; |
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84 | } |
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85 | break; |
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86 | case RTEMS_BLKDEV_REQ_WRITE: |
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87 | switch (sg->block) { |
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88 | case BLOCK_READ_IO_ERROR: |
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89 | case BLOCK_READ_UNSATISFIED: |
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90 | case BLOCK_READ_SUCCESSFUL: |
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91 | disk_data [sg->block] = *buf; |
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92 | break; |
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93 | case BLOCK_WRITE_IO_ERROR: |
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94 | sc = RTEMS_IO_ERROR; |
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95 | break; |
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96 | default: |
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97 | sc = RTEMS_IO_ERROR; |
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98 | break; |
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99 | } |
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100 | break; |
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101 | default: |
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102 | sc = RTEMS_IO_ERROR; |
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103 | break; |
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104 | } |
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105 | } else { |
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106 | sc = RTEMS_IO_ERROR; |
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107 | } |
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108 | } |
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109 | |
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110 | rtems_blkdev_request_done(r, sc); |
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111 | |
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112 | return 0; |
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113 | } else { |
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114 | return rtems_blkdev_ioctl(dd, req, arg); |
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115 | } |
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116 | } |
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117 | |
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118 | static rtems_status_code disk_register( |
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119 | uint32_t block_size, |
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120 | rtems_blkdev_bnum block_count, |
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121 | dev_t *dev_ptr |
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122 | ) |
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123 | { |
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124 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
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125 | rtems_device_major_number major = 0; |
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126 | dev_t dev = 0; |
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127 | |
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128 | sc = rtems_io_register_driver(0, &disk_ops, &major); |
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129 | ASSERT_SC(sc); |
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130 | |
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131 | dev = rtems_filesystem_make_dev_t(major, 0); |
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132 | |
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133 | sc = rtems_disk_create_phys( |
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134 | dev, |
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135 | block_size, |
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136 | block_count, |
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137 | disk_ioctl, |
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138 | NULL, |
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139 | NULL |
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140 | ); |
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141 | ASSERT_SC(sc); |
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142 | |
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143 | *dev_ptr = dev; |
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144 | |
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145 | return RTEMS_SUCCESSFUL; |
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146 | } |
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147 | |
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148 | static void check_read( |
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149 | rtems_disk_device *dd, |
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150 | rtems_blkdev_bnum block, |
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151 | rtems_status_code expected_sc |
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152 | ) |
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153 | { |
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154 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
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155 | rtems_bdbuf_buffer *bd = NULL; |
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156 | |
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157 | sc = rtems_bdbuf_read(dd, block, &bd); |
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158 | assert(sc == expected_sc); |
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159 | |
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160 | if (sc == RTEMS_SUCCESSFUL) { |
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161 | sc = rtems_bdbuf_release(bd); |
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162 | ASSERT_SC(sc); |
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163 | } |
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164 | } |
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165 | |
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166 | static rtems_task Init(rtems_task_argument argument) |
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167 | { |
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168 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
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169 | rtems_bdbuf_buffer *bd = NULL; |
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170 | dev_t dev = 0; |
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171 | rtems_disk_device *dd = NULL; |
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172 | |
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173 | printk("\n\n*** TEST BLOCK 9 ***\n"); |
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174 | |
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175 | sc = rtems_disk_io_initialize(); |
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176 | ASSERT_SC(sc); |
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177 | |
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178 | sc = disk_register(BLOCK_SIZE, BLOCK_COUNT, &dev); |
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179 | ASSERT_SC(sc); |
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180 | |
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181 | dd = rtems_disk_obtain(dev); |
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182 | assert(dd != NULL); |
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183 | |
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184 | check_read(dd, BLOCK_READ_IO_ERROR, RTEMS_IO_ERROR); |
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185 | check_read(dd, BLOCK_READ_UNSATISFIED, RTEMS_UNSATISFIED); |
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186 | check_read(dd, BLOCK_READ_SUCCESSFUL, RTEMS_SUCCESSFUL); |
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187 | check_read(dd, BLOCK_WRITE_IO_ERROR, RTEMS_SUCCESSFUL); |
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188 | |
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189 | /* Check write IO error */ |
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190 | |
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191 | sc = rtems_bdbuf_read(dd, BLOCK_WRITE_IO_ERROR, &bd); |
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192 | ASSERT_SC(sc); |
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193 | |
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194 | bd->buffer [0] = 1; |
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195 | |
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196 | sc = rtems_bdbuf_sync(bd); |
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197 | ASSERT_SC(sc); |
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198 | |
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199 | sc = rtems_bdbuf_read(dd, BLOCK_WRITE_IO_ERROR, &bd); |
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200 | ASSERT_SC(sc); |
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201 | |
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202 | assert(bd->buffer [0] == 0); |
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203 | |
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204 | sc = rtems_bdbuf_release(bd); |
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205 | ASSERT_SC(sc); |
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206 | |
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207 | /* Check write to deleted disk */ |
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208 | |
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209 | sc = rtems_bdbuf_read(dd, BLOCK_READ_SUCCESSFUL, &bd); |
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210 | ASSERT_SC(sc); |
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211 | |
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212 | sc = rtems_disk_delete(dev); |
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213 | ASSERT_SC(sc); |
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214 | |
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215 | sc = rtems_bdbuf_sync(bd); |
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216 | ASSERT_SC(sc); |
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217 | |
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218 | sc = rtems_disk_release(dd); |
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219 | ASSERT_SC(sc); |
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220 | |
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221 | printk("*** END OF TEST BLOCK 9 ***\n"); |
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222 | |
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223 | exit(0); |
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224 | } |
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225 | |
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226 | #define CONFIGURE_INIT |
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227 | |
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228 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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229 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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230 | #define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK |
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231 | |
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232 | #define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM |
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233 | |
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234 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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235 | #define CONFIGURE_MAXIMUM_DRIVERS 4 |
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236 | |
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237 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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238 | |
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239 | #define CONFIGURE_BDBUF_BUFFER_MIN_SIZE BLOCK_SIZE |
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240 | #define CONFIGURE_BDBUF_BUFFER_MAX_SIZE BLOCK_SIZE |
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241 | #define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE (BLOCK_SIZE * BLOCK_COUNT) |
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242 | |
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243 | #include <rtems/confdefs.h> |
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