1 /****************************************************************************** 2 * 3 * Module Name: exdebug - Support for stores to the AML Debug Object 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2015, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 #include <acpi/acpi.h> 45 #include "accommon.h" 46 #include "acinterp.h" 47 48 #define _COMPONENT ACPI_EXECUTER 49 ACPI_MODULE_NAME("exdebug") 50 51 #ifndef ACPI_NO_ERROR_MESSAGES 52 /******************************************************************************* 53 * 54 * FUNCTION: acpi_ex_do_debug_object 55 * 56 * PARAMETERS: source_desc - Object to be output to "Debug Object" 57 * level - Indentation level (used for packages) 58 * index - Current package element, zero if not pkg 59 * 60 * RETURN: None 61 * 62 * DESCRIPTION: Handles stores to the AML Debug Object. For example: 63 * Store(INT1, Debug) 64 * 65 * This function is not compiled if ACPI_NO_ERROR_MESSAGES is set. 66 * 67 * This function is only enabled if acpi_gbl_enable_aml_debug_object is set, or 68 * if ACPI_LV_DEBUG_OBJECT is set in the acpi_dbg_level. Thus, in the normal 69 * operational case, stores to the debug object are ignored but can be easily 70 * enabled if necessary. 71 * 72 ******************************************************************************/ 73 void 74 acpi_ex_do_debug_object(union acpi_operand_object *source_desc, 75 u32 level, u32 index) 76 { 77 u32 i; 78 u32 timer; 79 union acpi_operand_object *object_desc; 80 u32 value; 81 82 ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); 83 84 /* Output must be enabled via the debug_object global or the dbg_level */ 85 86 if (!acpi_gbl_enable_aml_debug_object && 87 !(acpi_dbg_level & ACPI_LV_DEBUG_OBJECT)) { 88 return_VOID; 89 } 90 91 /* 92 * We will emit the current timer value (in microseconds) with each 93 * debug output. Only need the lower 26 bits. This allows for 67 94 * million microseconds or 67 seconds before rollover. 95 */ 96 timer = ((u32)acpi_os_get_timer() / 10); /* (100 nanoseconds to microseconds) */ 97 timer &= 0x03FFFFFF; 98 99 /* 100 * Print line header as long as we are not in the middle of an 101 * object display 102 */ 103 if (!((level > 0) && index == 0)) { 104 acpi_os_printf("[ACPI Debug %.8u] %*s", timer, level, " "); 105 } 106 107 /* Display the index for package output only */ 108 109 if (index > 0) { 110 acpi_os_printf("(%.2u) ", index - 1); 111 } 112 113 if (!source_desc) { 114 acpi_os_printf("[Null Object]\n"); 115 return_VOID; 116 } 117 118 if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) { 119 acpi_os_printf("%s ", 120 acpi_ut_get_object_type_name(source_desc)); 121 122 if (!acpi_ut_valid_internal_object(source_desc)) { 123 acpi_os_printf("%p, Invalid Internal Object!\n", 124 source_desc); 125 return_VOID; 126 } 127 } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == 128 ACPI_DESC_TYPE_NAMED) { 129 acpi_os_printf("%s: %p\n", 130 acpi_ut_get_type_name(((struct 131 acpi_namespace_node *) 132 source_desc)->type), 133 source_desc); 134 return_VOID; 135 } else { 136 return_VOID; 137 } 138 139 /* source_desc is of type ACPI_DESC_TYPE_OPERAND */ 140 141 switch (source_desc->common.type) { 142 case ACPI_TYPE_INTEGER: 143 144 /* Output correct integer width */ 145 146 if (acpi_gbl_integer_byte_width == 4) { 147 acpi_os_printf("0x%8.8X\n", 148 (u32)source_desc->integer.value); 149 } else { 150 acpi_os_printf("0x%8.8X%8.8X\n", 151 ACPI_FORMAT_UINT64(source_desc->integer. 152 value)); 153 } 154 break; 155 156 case ACPI_TYPE_BUFFER: 157 158 acpi_os_printf("[0x%.2X]\n", (u32)source_desc->buffer.length); 159 acpi_ut_dump_buffer(source_desc->buffer.pointer, 160 (source_desc->buffer.length < 256) ? 161 source_desc->buffer.length : 256, 162 DB_BYTE_DISPLAY, 0); 163 break; 164 165 case ACPI_TYPE_STRING: 166 167 acpi_os_printf("[0x%.2X] \"%s\"\n", 168 source_desc->string.length, 169 source_desc->string.pointer); 170 break; 171 172 case ACPI_TYPE_PACKAGE: 173 174 acpi_os_printf("[Contains 0x%.2X Elements]\n", 175 source_desc->package.count); 176 177 /* Output the entire contents of the package */ 178 179 for (i = 0; i < source_desc->package.count; i++) { 180 acpi_ex_do_debug_object(source_desc->package. 181 elements[i], level + 4, i + 1); 182 } 183 break; 184 185 case ACPI_TYPE_LOCAL_REFERENCE: 186 187 acpi_os_printf("[%s] ", 188 acpi_ut_get_reference_name(source_desc)); 189 190 /* Decode the reference */ 191 192 switch (source_desc->reference.class) { 193 case ACPI_REFCLASS_INDEX: 194 195 acpi_os_printf("0x%X\n", source_desc->reference.value); 196 break; 197 198 case ACPI_REFCLASS_TABLE: 199 200 /* Case for ddb_handle */ 201 202 acpi_os_printf("Table Index 0x%X\n", 203 source_desc->reference.value); 204 return_VOID; 205 206 default: 207 208 break; 209 } 210 211 acpi_os_printf(" "); 212 213 /* Check for valid node first, then valid object */ 214 215 if (source_desc->reference.node) { 216 if (ACPI_GET_DESCRIPTOR_TYPE 217 (source_desc->reference.node) != 218 ACPI_DESC_TYPE_NAMED) { 219 acpi_os_printf 220 (" %p - Not a valid namespace node\n", 221 source_desc->reference.node); 222 } else { 223 acpi_os_printf("Node %p [%4.4s] ", 224 source_desc->reference.node, 225 (source_desc->reference.node)-> 226 name.ascii); 227 228 switch ((source_desc->reference.node)->type) { 229 230 /* These types have no attached object */ 231 232 case ACPI_TYPE_DEVICE: 233 acpi_os_printf("Device\n"); 234 break; 235 236 case ACPI_TYPE_THERMAL: 237 acpi_os_printf("Thermal Zone\n"); 238 break; 239 240 default: 241 242 acpi_ex_do_debug_object((source_desc-> 243 reference. 244 node)->object, 245 level + 4, 0); 246 break; 247 } 248 } 249 } else if (source_desc->reference.object) { 250 if (ACPI_GET_DESCRIPTOR_TYPE 251 (source_desc->reference.object) == 252 ACPI_DESC_TYPE_NAMED) { 253 acpi_ex_do_debug_object(((struct 254 acpi_namespace_node *) 255 source_desc->reference. 256 object)->object, 257 level + 4, 0); 258 } else { 259 object_desc = source_desc->reference.object; 260 value = source_desc->reference.value; 261 262 switch (object_desc->common.type) { 263 case ACPI_TYPE_BUFFER: 264 265 acpi_os_printf("Buffer[%u] = 0x%2.2X\n", 266 value, 267 *source_desc->reference. 268 index_pointer); 269 break; 270 271 case ACPI_TYPE_STRING: 272 273 acpi_os_printf 274 ("String[%u] = \"%c\" (0x%2.2X)\n", 275 value, 276 *source_desc->reference. 277 index_pointer, 278 *source_desc->reference. 279 index_pointer); 280 break; 281 282 case ACPI_TYPE_PACKAGE: 283 284 acpi_os_printf("Package[%u] = ", value); 285 acpi_ex_do_debug_object(*source_desc-> 286 reference.where, 287 level + 4, 0); 288 break; 289 290 default: 291 292 acpi_os_printf 293 ("Unknown Reference object type %X\n", 294 object_desc->common.type); 295 break; 296 } 297 } 298 } 299 break; 300 301 default: 302 303 acpi_os_printf("%p\n", source_desc); 304 break; 305 } 306 307 ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n")); 308 return_VOID; 309 } 310 #endif 311