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 80 ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); 81 82 /* Output must be enabled via the debug_object global or the dbg_level */ 83 84 if (!acpi_gbl_enable_aml_debug_object && 85 !(acpi_dbg_level & ACPI_LV_DEBUG_OBJECT)) { 86 return_VOID; 87 } 88 89 /* 90 * We will emit the current timer value (in microseconds) with each 91 * debug output. Only need the lower 26 bits. This allows for 67 92 * million microseconds or 67 seconds before rollover. 93 */ 94 timer = ((u32)acpi_os_get_timer() / 10); /* (100 nanoseconds to microseconds) */ 95 timer &= 0x03FFFFFF; 96 97 /* 98 * Print line header as long as we are not in the middle of an 99 * object display 100 */ 101 if (!((level > 0) && index == 0)) { 102 acpi_os_printf("[ACPI Debug %.8u] %*s", timer, level, " "); 103 } 104 105 /* Display the index for package output only */ 106 107 if (index > 0) { 108 acpi_os_printf("(%.2u) ", index - 1); 109 } 110 111 if (!source_desc) { 112 acpi_os_printf("[Null Object]\n"); 113 return_VOID; 114 } 115 116 if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) { 117 acpi_os_printf("%s ", 118 acpi_ut_get_object_type_name(source_desc)); 119 120 if (!acpi_ut_valid_internal_object(source_desc)) { 121 acpi_os_printf("%p, Invalid Internal Object!\n", 122 source_desc); 123 return_VOID; 124 } 125 } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == 126 ACPI_DESC_TYPE_NAMED) { 127 acpi_os_printf("%s: %p\n", 128 acpi_ut_get_type_name(((struct 129 acpi_namespace_node *) 130 source_desc)->type), 131 source_desc); 132 return_VOID; 133 } else { 134 return_VOID; 135 } 136 137 /* source_desc is of type ACPI_DESC_TYPE_OPERAND */ 138 139 switch (source_desc->common.type) { 140 case ACPI_TYPE_INTEGER: 141 142 /* Output correct integer width */ 143 144 if (acpi_gbl_integer_byte_width == 4) { 145 acpi_os_printf("0x%8.8X\n", 146 (u32)source_desc->integer.value); 147 } else { 148 acpi_os_printf("0x%8.8X%8.8X\n", 149 ACPI_FORMAT_UINT64(source_desc->integer. 150 value)); 151 } 152 break; 153 154 case ACPI_TYPE_BUFFER: 155 156 acpi_os_printf("[0x%.2X]\n", (u32)source_desc->buffer.length); 157 acpi_ut_dump_buffer(source_desc->buffer.pointer, 158 (source_desc->buffer.length < 256) ? 159 source_desc->buffer.length : 256, 160 DB_BYTE_DISPLAY, 0); 161 break; 162 163 case ACPI_TYPE_STRING: 164 165 acpi_os_printf("[0x%.2X] \"%s\"\n", 166 source_desc->string.length, 167 source_desc->string.pointer); 168 break; 169 170 case ACPI_TYPE_PACKAGE: 171 172 acpi_os_printf("[Contains 0x%.2X Elements]\n", 173 source_desc->package.count); 174 175 /* Output the entire contents of the package */ 176 177 for (i = 0; i < source_desc->package.count; i++) { 178 acpi_ex_do_debug_object(source_desc->package. 179 elements[i], level + 4, i + 1); 180 } 181 break; 182 183 case ACPI_TYPE_LOCAL_REFERENCE: 184 185 acpi_os_printf("[%s] ", 186 acpi_ut_get_reference_name(source_desc)); 187 188 /* Decode the reference */ 189 190 switch (source_desc->reference.class) { 191 case ACPI_REFCLASS_INDEX: 192 193 acpi_os_printf("0x%X\n", source_desc->reference.value); 194 break; 195 196 case ACPI_REFCLASS_TABLE: 197 198 /* Case for ddb_handle */ 199 200 acpi_os_printf("Table Index 0x%X\n", 201 source_desc->reference.value); 202 return_VOID; 203 204 default: 205 206 break; 207 } 208 209 acpi_os_printf(" "); 210 211 /* Check for valid node first, then valid object */ 212 213 if (source_desc->reference.node) { 214 if (ACPI_GET_DESCRIPTOR_TYPE 215 (source_desc->reference.node) != 216 ACPI_DESC_TYPE_NAMED) { 217 acpi_os_printf 218 (" %p - Not a valid namespace node\n", 219 source_desc->reference.node); 220 } else { 221 acpi_os_printf("Node %p [%4.4s] ", 222 source_desc->reference.node, 223 (source_desc->reference.node)-> 224 name.ascii); 225 226 switch ((source_desc->reference.node)->type) { 227 228 /* These types have no attached object */ 229 230 case ACPI_TYPE_DEVICE: 231 acpi_os_printf("Device\n"); 232 break; 233 234 case ACPI_TYPE_THERMAL: 235 acpi_os_printf("Thermal Zone\n"); 236 break; 237 238 default: 239 240 acpi_ex_do_debug_object((source_desc-> 241 reference. 242 node)->object, 243 level + 4, 0); 244 break; 245 } 246 } 247 } else if (source_desc->reference.object) { 248 if (ACPI_GET_DESCRIPTOR_TYPE 249 (source_desc->reference.object) == 250 ACPI_DESC_TYPE_NAMED) { 251 acpi_ex_do_debug_object(((struct 252 acpi_namespace_node *) 253 source_desc->reference. 254 object)->object, 255 level + 4, 0); 256 } else { 257 acpi_ex_do_debug_object(source_desc->reference. 258 object, level + 4, 0); 259 } 260 } 261 break; 262 263 default: 264 265 acpi_os_printf("%p\n", source_desc); 266 break; 267 } 268 269 ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n")); 270 return_VOID; 271 } 272 #endif 273