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6595 | serge | 1 | /******************************************************************************* |
2 | * |
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3 | * Module Name: dbtest - Various debug-related tests |
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4 | * |
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5 | ******************************************************************************/ |
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6 | |||
7 | /* |
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8 | * Copyright (C) 2000 - 2015, Intel Corp. |
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9 | * All rights reserved. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions |
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13 | * are met: |
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14 | * 1. Redistributions of source code must retain the above copyright |
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15 | * notice, this list of conditions, and the following disclaimer, |
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16 | * without modification. |
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17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
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18 | * substantially similar to the "NO WARRANTY" disclaimer below |
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19 | * ("Disclaimer") and any redistribution must be conditioned upon |
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20 | * including a substantially similar Disclaimer requirement for further |
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21 | * binary redistribution. |
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22 | * 3. Neither the names of the above-listed copyright holders nor the names |
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23 | * of any contributors may be used to endorse or promote products derived |
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24 | * from this software without specific prior written permission. |
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25 | * |
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26 | * Alternatively, this software may be distributed under the terms of the |
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27 | * GNU General Public License ("GPL") version 2 as published by the Free |
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28 | * Software Foundation. |
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29 | * |
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30 | * NO WARRANTY |
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31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
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34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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41 | * POSSIBILITY OF SUCH DAMAGES. |
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42 | */ |
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43 | |||
44 | #include |
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45 | #include "accommon.h" |
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46 | #include "acdebug.h" |
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47 | #include "acnamesp.h" |
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48 | #include "acpredef.h" |
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49 | |||
50 | #define _COMPONENT ACPI_CA_DEBUGGER |
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51 | ACPI_MODULE_NAME("dbtest") |
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52 | |||
53 | /* Local prototypes */ |
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54 | static void acpi_db_test_all_objects(void); |
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55 | |||
56 | static acpi_status |
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57 | acpi_db_test_one_object(acpi_handle obj_handle, |
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58 | u32 nesting_level, void *context, void **return_value); |
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59 | |||
60 | static acpi_status |
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61 | acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length); |
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62 | |||
63 | static acpi_status |
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64 | acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length); |
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65 | |||
66 | static acpi_status |
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67 | acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length); |
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68 | |||
69 | static acpi_status |
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70 | acpi_db_read_from_object(struct acpi_namespace_node *node, |
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71 | acpi_object_type expected_type, |
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72 | union acpi_object **value); |
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73 | |||
74 | static acpi_status |
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75 | acpi_db_write_to_object(struct acpi_namespace_node *node, |
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76 | union acpi_object *value); |
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77 | |||
78 | static void acpi_db_evaluate_all_predefined_names(char *count_arg); |
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79 | |||
80 | static acpi_status |
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81 | acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle, |
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82 | u32 nesting_level, |
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83 | void *context, void **return_value); |
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84 | |||
85 | /* |
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86 | * Test subcommands |
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87 | */ |
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88 | static struct acpi_db_argument_info acpi_db_test_types[] = { |
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89 | {"OBJECTS"}, |
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90 | {"PREDEFINED"}, |
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91 | {NULL} /* Must be null terminated */ |
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92 | }; |
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93 | |||
94 | #define CMD_TEST_OBJECTS 0 |
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95 | #define CMD_TEST_PREDEFINED 1 |
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96 | |||
97 | #define BUFFER_FILL_VALUE 0xFF |
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98 | |||
99 | /* |
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100 | * Support for the special debugger read/write control methods. |
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101 | * These methods are installed into the current namespace and are |
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102 | * used to read and write the various namespace objects. The point |
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103 | * is to force the AML interpreter do all of the work. |
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104 | */ |
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105 | #define ACPI_DB_READ_METHOD "\\_T98" |
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106 | #define ACPI_DB_WRITE_METHOD "\\_T99" |
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107 | |||
108 | static acpi_handle read_handle = NULL; |
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109 | static acpi_handle write_handle = NULL; |
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110 | |||
111 | /* ASL Definitions of the debugger read/write control methods */ |
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112 | |||
113 | #if 0 |
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114 | definition_block("ssdt.aml", "SSDT", 2, "Intel", "DEBUG", 0x00000001) |
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115 | { |
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116 | method(_T98, 1, not_serialized) { /* Read */ |
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117 | return (de_ref_of(arg0)) |
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118 | } |
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119 | } |
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120 | |||
121 | definition_block("ssdt2.aml", "SSDT", 2, "Intel", "DEBUG", 0x00000001) |
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122 | { |
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123 | method(_T99, 2, not_serialized) { /* Write */ |
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124 | store(arg1, arg0) |
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125 | } |
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126 | } |
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127 | #endif |
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128 | |||
129 | static unsigned char read_method_code[] = { |
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130 | 0x53, 0x53, 0x44, 0x54, 0x2E, 0x00, 0x00, 0x00, /* 00000000 "SSDT...." */ |
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131 | 0x02, 0xC9, 0x49, 0x6E, 0x74, 0x65, 0x6C, 0x00, /* 00000008 "..Intel." */ |
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132 | 0x44, 0x45, 0x42, 0x55, 0x47, 0x00, 0x00, 0x00, /* 00000010 "DEBUG..." */ |
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133 | 0x01, 0x00, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* 00000018 "....INTL" */ |
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134 | 0x18, 0x12, 0x13, 0x20, 0x14, 0x09, 0x5F, 0x54, /* 00000020 "... .._T" */ |
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135 | 0x39, 0x38, 0x01, 0xA4, 0x83, 0x68 /* 00000028 "98...h" */ |
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136 | }; |
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137 | |||
138 | static unsigned char write_method_code[] = { |
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139 | 0x53, 0x53, 0x44, 0x54, 0x2E, 0x00, 0x00, 0x00, /* 00000000 "SSDT...." */ |
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140 | 0x02, 0x15, 0x49, 0x6E, 0x74, 0x65, 0x6C, 0x00, /* 00000008 "..Intel." */ |
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141 | 0x44, 0x45, 0x42, 0x55, 0x47, 0x00, 0x00, 0x00, /* 00000010 "DEBUG..." */ |
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142 | 0x01, 0x00, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* 00000018 "....INTL" */ |
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143 | 0x18, 0x12, 0x13, 0x20, 0x14, 0x09, 0x5F, 0x54, /* 00000020 "... .._T" */ |
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144 | 0x39, 0x39, 0x02, 0x70, 0x69, 0x68 /* 00000028 "99.pih" */ |
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145 | }; |
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146 | |||
147 | /******************************************************************************* |
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148 | * |
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149 | * FUNCTION: acpi_db_execute_test |
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150 | * |
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151 | * PARAMETERS: type_arg - Subcommand |
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152 | * |
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153 | * RETURN: None |
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154 | * |
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155 | * DESCRIPTION: Execute various debug tests. |
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156 | * |
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157 | * Note: Code is prepared for future expansion of the TEST command. |
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158 | * |
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159 | ******************************************************************************/ |
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160 | |||
161 | void acpi_db_execute_test(char *type_arg) |
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162 | { |
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163 | u32 temp; |
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164 | |||
165 | acpi_ut_strupr(type_arg); |
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166 | temp = acpi_db_match_argument(type_arg, acpi_db_test_types); |
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167 | if (temp == ACPI_TYPE_NOT_FOUND) { |
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168 | acpi_os_printf("Invalid or unsupported argument\n"); |
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169 | return; |
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170 | } |
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171 | |||
172 | switch (temp) { |
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173 | case CMD_TEST_OBJECTS: |
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174 | |||
175 | acpi_db_test_all_objects(); |
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176 | break; |
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177 | |||
178 | case CMD_TEST_PREDEFINED: |
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179 | |||
180 | acpi_db_evaluate_all_predefined_names(NULL); |
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181 | break; |
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182 | |||
183 | default: |
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184 | break; |
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185 | } |
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186 | } |
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187 | |||
188 | /******************************************************************************* |
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189 | * |
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190 | * FUNCTION: acpi_db_test_all_objects |
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191 | * |
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192 | * PARAMETERS: None |
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193 | * |
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194 | * RETURN: None |
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195 | * |
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196 | * DESCRIPTION: This test implements the OBJECTS subcommand. It exercises the |
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197 | * namespace by reading/writing/comparing all data objects such |
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198 | * as integers, strings, buffers, fields, buffer fields, etc. |
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199 | * |
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200 | ******************************************************************************/ |
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201 | |||
202 | static void acpi_db_test_all_objects(void) |
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203 | { |
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204 | acpi_status status; |
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205 | |||
206 | /* Install the debugger read-object control method if necessary */ |
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207 | |||
208 | if (!read_handle) { |
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209 | status = acpi_install_method(read_method_code); |
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210 | if (ACPI_FAILURE(status)) { |
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211 | acpi_os_printf |
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212 | ("%s, Could not install debugger read method\n", |
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213 | acpi_format_exception(status)); |
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214 | return; |
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215 | } |
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216 | |||
217 | status = |
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218 | acpi_get_handle(NULL, ACPI_DB_READ_METHOD, &read_handle); |
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219 | if (ACPI_FAILURE(status)) { |
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220 | acpi_os_printf |
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221 | ("Could not obtain handle for debug method %s\n", |
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222 | ACPI_DB_READ_METHOD); |
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223 | return; |
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224 | } |
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225 | } |
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226 | |||
227 | /* Install the debugger write-object control method if necessary */ |
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228 | |||
229 | if (!write_handle) { |
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230 | status = acpi_install_method(write_method_code); |
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231 | if (ACPI_FAILURE(status)) { |
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232 | acpi_os_printf |
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233 | ("%s, Could not install debugger write method\n", |
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234 | acpi_format_exception(status)); |
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235 | return; |
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236 | } |
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237 | |||
238 | status = |
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239 | acpi_get_handle(NULL, ACPI_DB_WRITE_METHOD, &write_handle); |
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240 | if (ACPI_FAILURE(status)) { |
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241 | acpi_os_printf |
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242 | ("Could not obtain handle for debug method %s\n", |
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243 | ACPI_DB_WRITE_METHOD); |
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244 | return; |
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245 | } |
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246 | } |
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247 | |||
248 | /* Walk the entire namespace, testing each supported named data object */ |
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249 | |||
250 | (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
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251 | ACPI_UINT32_MAX, acpi_db_test_one_object, |
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252 | NULL, NULL, NULL); |
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253 | } |
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254 | |||
255 | /******************************************************************************* |
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256 | * |
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257 | * FUNCTION: acpi_db_test_one_object |
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258 | * |
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259 | * PARAMETERS: acpi_walk_callback |
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260 | * |
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261 | * RETURN: Status |
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262 | * |
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263 | * DESCRIPTION: Test one namespace object. Supported types are Integer, |
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264 | * String, Buffer, buffer_field, and field_unit. All other object |
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265 | * types are simply ignored. |
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266 | * |
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267 | * Note: Support for Packages is not implemented. |
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268 | * |
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269 | ******************************************************************************/ |
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270 | |||
271 | static acpi_status |
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272 | acpi_db_test_one_object(acpi_handle obj_handle, |
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273 | u32 nesting_level, void *context, void **return_value) |
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274 | { |
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275 | struct acpi_namespace_node *node; |
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276 | union acpi_operand_object *obj_desc; |
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277 | union acpi_operand_object *region_obj; |
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278 | acpi_object_type local_type; |
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279 | u32 bit_length = 0; |
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280 | u32 byte_length = 0; |
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281 | acpi_status status = AE_OK; |
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282 | |||
283 | node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); |
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284 | obj_desc = node->object; |
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285 | |||
286 | /* |
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287 | * For the supported types, get the actual bit length or |
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288 | * byte length. Map the type to one of Integer/String/Buffer. |
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289 | */ |
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290 | switch (node->type) { |
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291 | case ACPI_TYPE_INTEGER: |
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292 | |||
293 | /* Integer width is either 32 or 64 */ |
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294 | |||
295 | local_type = ACPI_TYPE_INTEGER; |
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296 | bit_length = acpi_gbl_integer_bit_width; |
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297 | break; |
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298 | |||
299 | case ACPI_TYPE_STRING: |
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300 | |||
301 | local_type = ACPI_TYPE_STRING; |
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302 | byte_length = obj_desc->string.length; |
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303 | break; |
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304 | |||
305 | case ACPI_TYPE_BUFFER: |
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306 | |||
307 | local_type = ACPI_TYPE_BUFFER; |
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308 | byte_length = obj_desc->buffer.length; |
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309 | bit_length = byte_length * 8; |
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310 | break; |
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311 | |||
312 | case ACPI_TYPE_FIELD_UNIT: |
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313 | case ACPI_TYPE_BUFFER_FIELD: |
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314 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
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315 | case ACPI_TYPE_LOCAL_INDEX_FIELD: |
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316 | case ACPI_TYPE_LOCAL_BANK_FIELD: |
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317 | |||
318 | local_type = ACPI_TYPE_INTEGER; |
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319 | if (obj_desc) { |
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320 | /* |
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321 | * Returned object will be a Buffer if the field length |
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322 | * is larger than the size of an Integer (32 or 64 bits |
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323 | * depending on the DSDT version). |
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324 | */ |
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325 | bit_length = obj_desc->common_field.bit_length; |
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326 | byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length); |
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327 | if (bit_length > acpi_gbl_integer_bit_width) { |
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328 | local_type = ACPI_TYPE_BUFFER; |
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329 | } |
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330 | } |
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331 | break; |
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332 | |||
333 | default: |
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334 | |||
335 | /* Ignore all other types */ |
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336 | |||
337 | return (AE_OK); |
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338 | } |
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339 | |||
340 | /* Emit the common prefix: Type:Name */ |
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341 | |||
342 | acpi_os_printf("%14s: %4.4s", |
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343 | acpi_ut_get_type_name(node->type), node->name.ascii); |
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344 | if (!obj_desc) { |
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345 | acpi_os_printf(" Ignoring, no attached object\n"); |
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346 | return (AE_OK); |
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347 | } |
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348 | |||
349 | /* |
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350 | * Check for unsupported region types. Note: acpi_exec simulates |
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351 | * access to system_memory, system_IO, PCI_Config, and EC. |
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352 | */ |
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353 | switch (node->type) { |
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354 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
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355 | |||
356 | region_obj = obj_desc->field.region_obj; |
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357 | switch (region_obj->region.space_id) { |
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358 | case ACPI_ADR_SPACE_SYSTEM_MEMORY: |
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359 | case ACPI_ADR_SPACE_SYSTEM_IO: |
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360 | case ACPI_ADR_SPACE_PCI_CONFIG: |
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361 | case ACPI_ADR_SPACE_EC: |
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362 | |||
363 | break; |
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364 | |||
365 | default: |
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366 | |||
367 | acpi_os_printf |
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368 | (" %s space is not supported [%4.4s]\n", |
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369 | acpi_ut_get_region_name(region_obj->region. |
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370 | space_id), |
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371 | region_obj->region.node->name.ascii); |
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372 | return (AE_OK); |
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373 | } |
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374 | break; |
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375 | |||
376 | default: |
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377 | break; |
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378 | } |
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379 | |||
380 | /* At this point, we have resolved the object to one of the major types */ |
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381 | |||
382 | switch (local_type) { |
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383 | case ACPI_TYPE_INTEGER: |
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384 | |||
385 | status = acpi_db_test_integer_type(node, bit_length); |
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386 | break; |
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387 | |||
388 | case ACPI_TYPE_STRING: |
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389 | |||
390 | status = acpi_db_test_string_type(node, byte_length); |
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391 | break; |
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392 | |||
393 | case ACPI_TYPE_BUFFER: |
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394 | |||
395 | status = acpi_db_test_buffer_type(node, bit_length); |
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396 | break; |
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397 | |||
398 | default: |
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399 | |||
400 | acpi_os_printf(" Ignoring, type not implemented (%2.2X)", |
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401 | local_type); |
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402 | break; |
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403 | } |
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404 | |||
405 | switch (node->type) { |
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406 | case ACPI_TYPE_LOCAL_REGION_FIELD: |
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407 | |||
408 | region_obj = obj_desc->field.region_obj; |
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409 | acpi_os_printf(" (%s)", |
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410 | acpi_ut_get_region_name(region_obj->region. |
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411 | space_id)); |
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412 | break; |
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413 | |||
414 | default: |
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415 | break; |
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416 | } |
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417 | |||
418 | acpi_os_printf("\n"); |
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419 | return (status); |
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420 | } |
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421 | |||
422 | /******************************************************************************* |
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423 | * |
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424 | * FUNCTION: acpi_db_test_integer_type |
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425 | * |
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426 | * PARAMETERS: node - Parent NS node for the object |
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427 | * bit_length - Actual length of the object. Used for |
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428 | * support of arbitrary length field_unit |
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429 | * and buffer_field objects. |
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430 | * |
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431 | * RETURN: Status |
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432 | * |
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433 | * DESCRIPTION: Test read/write for an Integer-valued object. Performs a |
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434 | * write/read/compare of an arbitrary new value, then performs |
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435 | * a write/read/compare of the original value. |
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436 | * |
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437 | ******************************************************************************/ |
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438 | |||
439 | static acpi_status |
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440 | acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length) |
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441 | { |
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442 | union acpi_object *temp1 = NULL; |
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443 | union acpi_object *temp2 = NULL; |
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444 | union acpi_object *temp3 = NULL; |
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445 | union acpi_object write_value; |
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446 | u64 value_to_write; |
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447 | acpi_status status; |
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448 | |||
449 | if (bit_length > 64) { |
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450 | acpi_os_printf(" Invalid length for an Integer: %u", |
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451 | bit_length); |
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452 | return (AE_OK); |
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453 | } |
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454 | |||
455 | /* Read the original value */ |
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456 | |||
457 | status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp1); |
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458 | if (ACPI_FAILURE(status)) { |
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459 | return (status); |
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460 | } |
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461 | |||
462 | acpi_os_printf(" (%4.4X/%3.3X) %8.8X%8.8X", |
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463 | bit_length, ACPI_ROUND_BITS_UP_TO_BYTES(bit_length), |
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464 | ACPI_FORMAT_UINT64(temp1->integer.value)); |
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465 | |||
466 | value_to_write = ACPI_UINT64_MAX >> (64 - bit_length); |
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467 | if (temp1->integer.value == value_to_write) { |
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468 | value_to_write = 0; |
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469 | } |
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470 | |||
471 | /* Write a new value */ |
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472 | |||
473 | write_value.type = ACPI_TYPE_INTEGER; |
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474 | write_value.integer.value = value_to_write; |
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475 | status = acpi_db_write_to_object(node, &write_value); |
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476 | if (ACPI_FAILURE(status)) { |
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477 | goto exit; |
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478 | } |
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479 | |||
480 | /* Ensure that we can read back the new value */ |
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481 | |||
482 | status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp2); |
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483 | if (ACPI_FAILURE(status)) { |
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484 | goto exit; |
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485 | } |
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486 | |||
487 | if (temp2->integer.value != value_to_write) { |
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488 | acpi_os_printf(" MISMATCH 2: %8.8X%8.8X, expecting %8.8X%8.8X", |
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489 | ACPI_FORMAT_UINT64(temp2->integer.value), |
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490 | ACPI_FORMAT_UINT64(value_to_write)); |
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491 | } |
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492 | |||
493 | /* Write back the original value */ |
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494 | |||
495 | write_value.integer.value = temp1->integer.value; |
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496 | status = acpi_db_write_to_object(node, &write_value); |
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497 | if (ACPI_FAILURE(status)) { |
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498 | goto exit; |
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499 | } |
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500 | |||
501 | /* Ensure that we can read back the original value */ |
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502 | |||
503 | status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp3); |
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504 | if (ACPI_FAILURE(status)) { |
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505 | goto exit; |
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506 | } |
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507 | |||
508 | if (temp3->integer.value != temp1->integer.value) { |
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509 | acpi_os_printf(" MISMATCH 3: %8.8X%8.8X, expecting %8.8X%8.8X", |
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510 | ACPI_FORMAT_UINT64(temp3->integer.value), |
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511 | ACPI_FORMAT_UINT64(temp1->integer.value)); |
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512 | } |
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513 | |||
514 | exit: |
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515 | if (temp1) { |
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516 | acpi_os_free(temp1); |
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517 | } |
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518 | if (temp2) { |
||
519 | acpi_os_free(temp2); |
||
520 | } |
||
521 | if (temp3) { |
||
522 | acpi_os_free(temp3); |
||
523 | } |
||
524 | return (AE_OK); |
||
525 | } |
||
526 | |||
527 | /******************************************************************************* |
||
528 | * |
||
529 | * FUNCTION: acpi_db_test_buffer_type |
||
530 | * |
||
531 | * PARAMETERS: node - Parent NS node for the object |
||
532 | * bit_length - Actual length of the object. |
||
533 | * |
||
534 | * RETURN: Status |
||
535 | * |
||
536 | * DESCRIPTION: Test read/write for an Buffer-valued object. Performs a |
||
537 | * write/read/compare of an arbitrary new value, then performs |
||
538 | * a write/read/compare of the original value. |
||
539 | * |
||
540 | ******************************************************************************/ |
||
541 | |||
542 | static acpi_status |
||
543 | acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length) |
||
544 | { |
||
545 | union acpi_object *temp1 = NULL; |
||
546 | union acpi_object *temp2 = NULL; |
||
547 | union acpi_object *temp3 = NULL; |
||
548 | u8 *buffer; |
||
549 | union acpi_object write_value; |
||
550 | acpi_status status; |
||
551 | u32 byte_length; |
||
552 | u32 i; |
||
553 | u8 extra_bits; |
||
554 | |||
555 | byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length); |
||
556 | if (byte_length == 0) { |
||
557 | acpi_os_printf(" Ignoring zero length buffer"); |
||
558 | return (AE_OK); |
||
559 | } |
||
560 | |||
561 | /* Allocate a local buffer */ |
||
562 | |||
563 | buffer = ACPI_ALLOCATE_ZEROED(byte_length); |
||
564 | if (!buffer) { |
||
565 | return (AE_NO_MEMORY); |
||
566 | } |
||
567 | |||
568 | /* Read the original value */ |
||
569 | |||
570 | status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp1); |
||
571 | if (ACPI_FAILURE(status)) { |
||
572 | goto exit; |
||
573 | } |
||
574 | |||
575 | /* Emit a few bytes of the buffer */ |
||
576 | |||
577 | acpi_os_printf(" (%4.4X/%3.3X)", bit_length, temp1->buffer.length); |
||
578 | for (i = 0; ((i < 4) && (i < byte_length)); i++) { |
||
579 | acpi_os_printf(" %2.2X", temp1->buffer.pointer[i]); |
||
580 | } |
||
581 | acpi_os_printf("... "); |
||
582 | |||
583 | /* |
||
584 | * Write a new value. |
||
585 | * |
||
586 | * Handle possible extra bits at the end of the buffer. Can |
||
587 | * happen for field_units larger than an integer, but the bit |
||
588 | * count is not an integral number of bytes. Zero out the |
||
589 | * unused bits. |
||
590 | */ |
||
591 | memset(buffer, BUFFER_FILL_VALUE, byte_length); |
||
592 | extra_bits = bit_length % 8; |
||
593 | if (extra_bits) { |
||
594 | buffer[byte_length - 1] = ACPI_MASK_BITS_ABOVE(extra_bits); |
||
595 | } |
||
596 | |||
597 | write_value.type = ACPI_TYPE_BUFFER; |
||
598 | write_value.buffer.length = byte_length; |
||
599 | write_value.buffer.pointer = buffer; |
||
600 | |||
601 | status = acpi_db_write_to_object(node, &write_value); |
||
602 | if (ACPI_FAILURE(status)) { |
||
603 | goto exit; |
||
604 | } |
||
605 | |||
606 | /* Ensure that we can read back the new value */ |
||
607 | |||
608 | status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp2); |
||
609 | if (ACPI_FAILURE(status)) { |
||
610 | goto exit; |
||
611 | } |
||
612 | |||
613 | if (memcmp(temp2->buffer.pointer, buffer, byte_length)) { |
||
614 | acpi_os_printf(" MISMATCH 2: New buffer value"); |
||
615 | } |
||
616 | |||
617 | /* Write back the original value */ |
||
618 | |||
619 | write_value.buffer.length = byte_length; |
||
620 | write_value.buffer.pointer = temp1->buffer.pointer; |
||
621 | |||
622 | status = acpi_db_write_to_object(node, &write_value); |
||
623 | if (ACPI_FAILURE(status)) { |
||
624 | goto exit; |
||
625 | } |
||
626 | |||
627 | /* Ensure that we can read back the original value */ |
||
628 | |||
629 | status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp3); |
||
630 | if (ACPI_FAILURE(status)) { |
||
631 | goto exit; |
||
632 | } |
||
633 | |||
634 | if (memcmp(temp1->buffer.pointer, temp3->buffer.pointer, byte_length)) { |
||
635 | acpi_os_printf(" MISMATCH 3: While restoring original buffer"); |
||
636 | } |
||
637 | |||
638 | exit: |
||
639 | ACPI_FREE(buffer); |
||
640 | if (temp1) { |
||
641 | acpi_os_free(temp1); |
||
642 | } |
||
643 | if (temp2) { |
||
644 | acpi_os_free(temp2); |
||
645 | } |
||
646 | if (temp3) { |
||
647 | acpi_os_free(temp3); |
||
648 | } |
||
649 | return (status); |
||
650 | } |
||
651 | |||
652 | /******************************************************************************* |
||
653 | * |
||
654 | * FUNCTION: acpi_db_test_string_type |
||
655 | * |
||
656 | * PARAMETERS: node - Parent NS node for the object |
||
657 | * byte_length - Actual length of the object. |
||
658 | * |
||
659 | * RETURN: Status |
||
660 | * |
||
661 | * DESCRIPTION: Test read/write for an String-valued object. Performs a |
||
662 | * write/read/compare of an arbitrary new value, then performs |
||
663 | * a write/read/compare of the original value. |
||
664 | * |
||
665 | ******************************************************************************/ |
||
666 | |||
667 | static acpi_status |
||
668 | acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length) |
||
669 | { |
||
670 | union acpi_object *temp1 = NULL; |
||
671 | union acpi_object *temp2 = NULL; |
||
672 | union acpi_object *temp3 = NULL; |
||
673 | char *value_to_write = "Test String from AML Debugger"; |
||
674 | union acpi_object write_value; |
||
675 | acpi_status status; |
||
676 | |||
677 | /* Read the original value */ |
||
678 | |||
679 | status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp1); |
||
680 | if (ACPI_FAILURE(status)) { |
||
681 | return (status); |
||
682 | } |
||
683 | |||
684 | acpi_os_printf(" (%4.4X/%3.3X) \"%s\"", (temp1->string.length * 8), |
||
685 | temp1->string.length, temp1->string.pointer); |
||
686 | |||
687 | /* Write a new value */ |
||
688 | |||
689 | write_value.type = ACPI_TYPE_STRING; |
||
690 | write_value.string.length = strlen(value_to_write); |
||
691 | write_value.string.pointer = value_to_write; |
||
692 | |||
693 | status = acpi_db_write_to_object(node, &write_value); |
||
694 | if (ACPI_FAILURE(status)) { |
||
695 | goto exit; |
||
696 | } |
||
697 | |||
698 | /* Ensure that we can read back the new value */ |
||
699 | |||
700 | status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp2); |
||
701 | if (ACPI_FAILURE(status)) { |
||
702 | goto exit; |
||
703 | } |
||
704 | |||
705 | if (strcmp(temp2->string.pointer, value_to_write)) { |
||
706 | acpi_os_printf(" MISMATCH 2: %s, expecting %s", |
||
707 | temp2->string.pointer, value_to_write); |
||
708 | } |
||
709 | |||
710 | /* Write back the original value */ |
||
711 | |||
712 | write_value.string.length = strlen(temp1->string.pointer); |
||
713 | write_value.string.pointer = temp1->string.pointer; |
||
714 | |||
715 | status = acpi_db_write_to_object(node, &write_value); |
||
716 | if (ACPI_FAILURE(status)) { |
||
717 | goto exit; |
||
718 | } |
||
719 | |||
720 | /* Ensure that we can read back the original value */ |
||
721 | |||
722 | status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp3); |
||
723 | if (ACPI_FAILURE(status)) { |
||
724 | goto exit; |
||
725 | } |
||
726 | |||
727 | if (strcmp(temp1->string.pointer, temp3->string.pointer)) { |
||
728 | acpi_os_printf(" MISMATCH 3: %s, expecting %s", |
||
729 | temp3->string.pointer, temp1->string.pointer); |
||
730 | } |
||
731 | |||
732 | exit: |
||
733 | if (temp1) { |
||
734 | acpi_os_free(temp1); |
||
735 | } |
||
736 | if (temp2) { |
||
737 | acpi_os_free(temp2); |
||
738 | } |
||
739 | if (temp3) { |
||
740 | acpi_os_free(temp3); |
||
741 | } |
||
742 | return (status); |
||
743 | } |
||
744 | |||
745 | /******************************************************************************* |
||
746 | * |
||
747 | * FUNCTION: acpi_db_read_from_object |
||
748 | * |
||
749 | * PARAMETERS: node - Parent NS node for the object |
||
750 | * expected_type - Object type expected from the read |
||
751 | * value - Where the value read is returned |
||
752 | * |
||
753 | * RETURN: Status |
||
754 | * |
||
755 | * DESCRIPTION: Performs a read from the specified object by invoking the |
||
756 | * special debugger control method that reads the object. Thus, |
||
757 | * the AML interpreter is doing all of the work, increasing the |
||
758 | * validity of the test. |
||
759 | * |
||
760 | ******************************************************************************/ |
||
761 | |||
762 | static acpi_status |
||
763 | acpi_db_read_from_object(struct acpi_namespace_node *node, |
||
764 | acpi_object_type expected_type, |
||
765 | union acpi_object **value) |
||
766 | { |
||
767 | union acpi_object *ret_value; |
||
768 | struct acpi_object_list param_objects; |
||
769 | union acpi_object params[2]; |
||
770 | struct acpi_buffer return_obj; |
||
771 | acpi_status status; |
||
772 | |||
773 | params[0].type = ACPI_TYPE_LOCAL_REFERENCE; |
||
774 | params[0].reference.actual_type = node->type; |
||
775 | params[0].reference.handle = ACPI_CAST_PTR(acpi_handle, node); |
||
776 | |||
777 | param_objects.count = 1; |
||
778 | param_objects.pointer = params; |
||
779 | |||
780 | return_obj.length = ACPI_ALLOCATE_BUFFER; |
||
781 | |||
782 | acpi_gbl_method_executing = TRUE; |
||
783 | status = acpi_evaluate_object(read_handle, NULL, |
||
784 | ¶m_objects, &return_obj); |
||
785 | acpi_gbl_method_executing = FALSE; |
||
786 | |||
787 | if (ACPI_FAILURE(status)) { |
||
788 | acpi_os_printf("Could not read from object, %s", |
||
789 | acpi_format_exception(status)); |
||
790 | return (status); |
||
791 | } |
||
792 | |||
793 | ret_value = (union acpi_object *)return_obj.pointer; |
||
794 | |||
795 | switch (ret_value->type) { |
||
796 | case ACPI_TYPE_INTEGER: |
||
797 | case ACPI_TYPE_BUFFER: |
||
798 | case ACPI_TYPE_STRING: |
||
799 | /* |
||
800 | * Did we receive the type we wanted? Most important for the |
||
801 | * Integer/Buffer case (when a field is larger than an Integer, |
||
802 | * it should return a Buffer). |
||
803 | */ |
||
804 | if (ret_value->type != expected_type) { |
||
805 | acpi_os_printf |
||
806 | (" Type mismatch: Expected %s, Received %s", |
||
807 | acpi_ut_get_type_name(expected_type), |
||
808 | acpi_ut_get_type_name(ret_value->type)); |
||
809 | |||
810 | return (AE_TYPE); |
||
811 | } |
||
812 | |||
813 | *value = ret_value; |
||
814 | break; |
||
815 | |||
816 | default: |
||
817 | |||
818 | acpi_os_printf(" Unsupported return object type, %s", |
||
819 | acpi_ut_get_type_name(ret_value->type)); |
||
820 | |||
821 | acpi_os_free(return_obj.pointer); |
||
822 | return (AE_TYPE); |
||
823 | } |
||
824 | |||
825 | return (status); |
||
826 | } |
||
827 | |||
828 | /******************************************************************************* |
||
829 | * |
||
830 | * FUNCTION: acpi_db_write_to_object |
||
831 | * |
||
832 | * PARAMETERS: node - Parent NS node for the object |
||
833 | * value - Value to be written |
||
834 | * |
||
835 | * RETURN: Status |
||
836 | * |
||
837 | * DESCRIPTION: Performs a write to the specified object by invoking the |
||
838 | * special debugger control method that writes the object. Thus, |
||
839 | * the AML interpreter is doing all of the work, increasing the |
||
840 | * validity of the test. |
||
841 | * |
||
842 | ******************************************************************************/ |
||
843 | |||
844 | static acpi_status |
||
845 | acpi_db_write_to_object(struct acpi_namespace_node *node, |
||
846 | union acpi_object *value) |
||
847 | { |
||
848 | struct acpi_object_list param_objects; |
||
849 | union acpi_object params[2]; |
||
850 | acpi_status status; |
||
851 | |||
852 | params[0].type = ACPI_TYPE_LOCAL_REFERENCE; |
||
853 | params[0].reference.actual_type = node->type; |
||
854 | params[0].reference.handle = ACPI_CAST_PTR(acpi_handle, node); |
||
855 | |||
856 | /* Copy the incoming user parameter */ |
||
857 | |||
858 | memcpy(¶ms[1], value, sizeof(union acpi_object)); |
||
859 | |||
860 | param_objects.count = 2; |
||
861 | param_objects.pointer = params; |
||
862 | |||
863 | acpi_gbl_method_executing = TRUE; |
||
864 | status = acpi_evaluate_object(write_handle, NULL, ¶m_objects, NULL); |
||
865 | acpi_gbl_method_executing = FALSE; |
||
866 | |||
867 | if (ACPI_FAILURE(status)) { |
||
868 | acpi_os_printf("Could not write to object, %s", |
||
869 | acpi_format_exception(status)); |
||
870 | } |
||
871 | |||
872 | return (status); |
||
873 | } |
||
874 | |||
875 | /******************************************************************************* |
||
876 | * |
||
877 | * FUNCTION: acpi_db_evaluate_all_predefined_names |
||
878 | * |
||
879 | * PARAMETERS: count_arg - Max number of methods to execute |
||
880 | * |
||
881 | * RETURN: None |
||
882 | * |
||
883 | * DESCRIPTION: Namespace batch execution. Execute predefined names in the |
||
884 | * namespace, up to the max count, if specified. |
||
885 | * |
||
886 | ******************************************************************************/ |
||
887 | |||
888 | static void acpi_db_evaluate_all_predefined_names(char *count_arg) |
||
889 | { |
||
890 | struct acpi_db_execute_walk info; |
||
891 | |||
892 | info.count = 0; |
||
893 | info.max_count = ACPI_UINT32_MAX; |
||
894 | |||
895 | if (count_arg) { |
||
896 | info.max_count = strtoul(count_arg, NULL, 0); |
||
897 | } |
||
898 | |||
899 | /* Search all nodes in namespace */ |
||
900 | |||
901 | (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
||
902 | ACPI_UINT32_MAX, |
||
903 | acpi_db_evaluate_one_predefined_name, NULL, |
||
904 | (void *)&info, NULL); |
||
905 | |||
906 | acpi_os_printf("Evaluated %u predefined names in the namespace\n", |
||
907 | info.count); |
||
908 | } |
||
909 | |||
910 | /******************************************************************************* |
||
911 | * |
||
912 | * FUNCTION: acpi_db_evaluate_one_predefined_name |
||
913 | * |
||
914 | * PARAMETERS: Callback from walk_namespace |
||
915 | * |
||
916 | * RETURN: Status |
||
917 | * |
||
918 | * DESCRIPTION: Batch execution module. Currently only executes predefined |
||
919 | * ACPI names. |
||
920 | * |
||
921 | ******************************************************************************/ |
||
922 | |||
923 | static acpi_status |
||
924 | acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle, |
||
925 | u32 nesting_level, |
||
926 | void *context, void **return_value) |
||
927 | { |
||
928 | struct acpi_namespace_node *node = |
||
929 | (struct acpi_namespace_node *)obj_handle; |
||
930 | struct acpi_db_execute_walk *info = |
||
931 | (struct acpi_db_execute_walk *)context; |
||
932 | char *pathname; |
||
933 | const union acpi_predefined_info *predefined; |
||
934 | struct acpi_device_info *obj_info; |
||
935 | struct acpi_object_list param_objects; |
||
936 | union acpi_object params[ACPI_METHOD_NUM_ARGS]; |
||
937 | union acpi_object *this_param; |
||
938 | struct acpi_buffer return_obj; |
||
939 | acpi_status status; |
||
940 | u16 arg_type_list; |
||
941 | u8 arg_count; |
||
942 | u8 arg_type; |
||
943 | u32 i; |
||
944 | |||
945 | /* The name must be a predefined ACPI name */ |
||
946 | |||
947 | predefined = acpi_ut_match_predefined_method(node->name.ascii); |
||
948 | if (!predefined) { |
||
949 | return (AE_OK); |
||
950 | } |
||
951 | |||
952 | if (node->type == ACPI_TYPE_LOCAL_SCOPE) { |
||
953 | return (AE_OK); |
||
954 | } |
||
955 | |||
956 | pathname = acpi_ns_get_external_pathname(node); |
||
957 | if (!pathname) { |
||
958 | return (AE_OK); |
||
959 | } |
||
960 | |||
961 | /* Get the object info for number of method parameters */ |
||
962 | |||
963 | status = acpi_get_object_info(obj_handle, &obj_info); |
||
964 | if (ACPI_FAILURE(status)) { |
||
965 | ACPI_FREE(pathname); |
||
966 | return (status); |
||
967 | } |
||
968 | |||
969 | param_objects.count = 0; |
||
970 | param_objects.pointer = NULL; |
||
971 | |||
972 | if (obj_info->type == ACPI_TYPE_METHOD) { |
||
973 | |||
974 | /* Setup default parameters (with proper types) */ |
||
975 | |||
976 | arg_type_list = predefined->info.argument_list; |
||
977 | arg_count = METHOD_GET_ARG_COUNT(arg_type_list); |
||
978 | |||
979 | /* |
||
980 | * Setup the ACPI-required number of arguments, regardless of what |
||
981 | * the actual method defines. If there is a difference, then the |
||
982 | * method is wrong and a warning will be issued during execution. |
||
983 | */ |
||
984 | this_param = params; |
||
985 | for (i = 0; i < arg_count; i++) { |
||
986 | arg_type = METHOD_GET_NEXT_TYPE(arg_type_list); |
||
987 | this_param->type = arg_type; |
||
988 | |||
989 | switch (arg_type) { |
||
990 | case ACPI_TYPE_INTEGER: |
||
991 | |||
992 | this_param->integer.value = 1; |
||
993 | break; |
||
994 | |||
995 | case ACPI_TYPE_STRING: |
||
996 | |||
997 | this_param->string.pointer = |
||
998 | "This is the default argument string"; |
||
999 | this_param->string.length = |
||
1000 | strlen(this_param->string.pointer); |
||
1001 | break; |
||
1002 | |||
1003 | case ACPI_TYPE_BUFFER: |
||
1004 | |||
1005 | this_param->buffer.pointer = (u8 *)params; /* just a garbage buffer */ |
||
1006 | this_param->buffer.length = 48; |
||
1007 | break; |
||
1008 | |||
1009 | case ACPI_TYPE_PACKAGE: |
||
1010 | |||
1011 | this_param->package.elements = NULL; |
||
1012 | this_param->package.count = 0; |
||
1013 | break; |
||
1014 | |||
1015 | default: |
||
1016 | |||
1017 | acpi_os_printf |
||
1018 | ("%s: Unsupported argument type: %u\n", |
||
1019 | pathname, arg_type); |
||
1020 | break; |
||
1021 | } |
||
1022 | |||
1023 | this_param++; |
||
1024 | } |
||
1025 | |||
1026 | param_objects.count = arg_count; |
||
1027 | param_objects.pointer = params; |
||
1028 | } |
||
1029 | |||
1030 | ACPI_FREE(obj_info); |
||
1031 | return_obj.pointer = NULL; |
||
1032 | return_obj.length = ACPI_ALLOCATE_BUFFER; |
||
1033 | |||
1034 | /* Do the actual method execution */ |
||
1035 | |||
1036 | acpi_gbl_method_executing = TRUE; |
||
1037 | |||
1038 | status = acpi_evaluate_object(node, NULL, ¶m_objects, &return_obj); |
||
1039 | |||
1040 | acpi_os_printf("%-32s returned %s\n", |
||
1041 | pathname, acpi_format_exception(status)); |
||
1042 | acpi_gbl_method_executing = FALSE; |
||
1043 | ACPI_FREE(pathname); |
||
1044 | |||
1045 | /* Ignore status from method execution */ |
||
1046 | |||
1047 | status = AE_OK; |
||
1048 | |||
1049 | /* Update count, check if we have executed enough methods */ |
||
1050 | |||
1051 | info->count++; |
||
1052 | if (info->count >= info->max_count) { |
||
1053 | status = AE_CTRL_TERMINATE; |
||
1054 | } |
||
1055 | |||
1056 | return (status); |
||
1057 | }>>> |