Lv Zheng | 9957510 | 2015-10-19 10:25:20 +0800 | [diff] [blame^] | 1 | /******************************************************************************* |
| 2 | * |
| 3 | * Module Name: dbcmds - Miscellaneous debug commands and output routines |
| 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 "acevents.h" |
| 47 | #include "acdebug.h" |
| 48 | #include "acnamesp.h" |
| 49 | #include "acresrc.h" |
| 50 | #include "actables.h" |
| 51 | |
| 52 | #define _COMPONENT ACPI_CA_DEBUGGER |
| 53 | ACPI_MODULE_NAME("dbcmds") |
| 54 | |
| 55 | /* Local prototypes */ |
| 56 | static void |
| 57 | acpi_dm_compare_aml_resources(u8 *aml1_buffer, |
| 58 | acpi_rsdesc_size aml1_buffer_length, |
| 59 | u8 *aml2_buffer, |
| 60 | acpi_rsdesc_size aml2_buffer_length); |
| 61 | |
| 62 | static acpi_status |
| 63 | acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name); |
| 64 | |
| 65 | static acpi_status |
| 66 | acpi_db_resource_callback(struct acpi_resource *resource, void *context); |
| 67 | |
| 68 | static acpi_status |
| 69 | acpi_db_device_resources(acpi_handle obj_handle, |
| 70 | u32 nesting_level, void *context, void **return_value); |
| 71 | |
| 72 | static void acpi_db_do_one_sleep_state(u8 sleep_state); |
| 73 | |
| 74 | static char *acpi_db_trace_method_name = NULL; |
| 75 | |
| 76 | /******************************************************************************* |
| 77 | * |
| 78 | * FUNCTION: acpi_db_convert_to_node |
| 79 | * |
| 80 | * PARAMETERS: in_string - String to convert |
| 81 | * |
| 82 | * RETURN: Pointer to a NS node |
| 83 | * |
| 84 | * DESCRIPTION: Convert a string to a valid NS pointer. Handles numeric or |
| 85 | * alphanumeric strings. |
| 86 | * |
| 87 | ******************************************************************************/ |
| 88 | |
| 89 | struct acpi_namespace_node *acpi_db_convert_to_node(char *in_string) |
| 90 | { |
| 91 | struct acpi_namespace_node *node; |
| 92 | acpi_size address; |
| 93 | |
| 94 | if ((*in_string >= 0x30) && (*in_string <= 0x39)) { |
| 95 | |
| 96 | /* Numeric argument, convert */ |
| 97 | |
| 98 | address = strtoul(in_string, NULL, 16); |
| 99 | node = ACPI_TO_POINTER(address); |
| 100 | if (!acpi_os_readable(node, sizeof(struct acpi_namespace_node))) { |
| 101 | acpi_os_printf("Address %p is invalid", node); |
| 102 | return (NULL); |
| 103 | } |
| 104 | |
| 105 | /* Make sure pointer is valid NS node */ |
| 106 | |
| 107 | if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { |
| 108 | acpi_os_printf |
| 109 | ("Address %p is not a valid namespace node [%s]\n", |
| 110 | node, acpi_ut_get_descriptor_name(node)); |
| 111 | return (NULL); |
| 112 | } |
| 113 | } else { |
| 114 | /* |
| 115 | * Alpha argument: The parameter is a name string that must be |
| 116 | * resolved to a Namespace object. |
| 117 | */ |
| 118 | node = acpi_db_local_ns_lookup(in_string); |
| 119 | if (!node) { |
| 120 | acpi_os_printf |
| 121 | ("Could not find [%s] in namespace, defaulting to root node\n", |
| 122 | in_string); |
| 123 | node = acpi_gbl_root_node; |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | return (node); |
| 128 | } |
| 129 | |
| 130 | /******************************************************************************* |
| 131 | * |
| 132 | * FUNCTION: acpi_db_sleep |
| 133 | * |
| 134 | * PARAMETERS: object_arg - Desired sleep state (0-5). NULL means |
| 135 | * invoke all possible sleep states. |
| 136 | * |
| 137 | * RETURN: Status |
| 138 | * |
| 139 | * DESCRIPTION: Simulate sleep/wake sequences |
| 140 | * |
| 141 | ******************************************************************************/ |
| 142 | |
| 143 | acpi_status acpi_db_sleep(char *object_arg) |
| 144 | { |
| 145 | u8 sleep_state; |
| 146 | u32 i; |
| 147 | |
| 148 | ACPI_FUNCTION_TRACE(acpi_db_sleep); |
| 149 | |
| 150 | /* Null input (no arguments) means to invoke all sleep states */ |
| 151 | |
| 152 | if (!object_arg) { |
| 153 | acpi_os_printf("Invoking all possible sleep states, 0-%d\n", |
| 154 | ACPI_S_STATES_MAX); |
| 155 | |
| 156 | for (i = 0; i <= ACPI_S_STATES_MAX; i++) { |
| 157 | acpi_db_do_one_sleep_state((u8)i); |
| 158 | } |
| 159 | |
| 160 | return_ACPI_STATUS(AE_OK); |
| 161 | } |
| 162 | |
| 163 | /* Convert argument to binary and invoke the sleep state */ |
| 164 | |
| 165 | sleep_state = (u8)strtoul(object_arg, NULL, 0); |
| 166 | acpi_db_do_one_sleep_state(sleep_state); |
| 167 | return_ACPI_STATUS(AE_OK); |
| 168 | } |
| 169 | |
| 170 | /******************************************************************************* |
| 171 | * |
| 172 | * FUNCTION: acpi_db_do_one_sleep_state |
| 173 | * |
| 174 | * PARAMETERS: sleep_state - Desired sleep state (0-5) |
| 175 | * |
| 176 | * RETURN: None |
| 177 | * |
| 178 | * DESCRIPTION: Simulate a sleep/wake sequence |
| 179 | * |
| 180 | ******************************************************************************/ |
| 181 | |
| 182 | static void acpi_db_do_one_sleep_state(u8 sleep_state) |
| 183 | { |
| 184 | acpi_status status; |
| 185 | u8 sleep_type_a; |
| 186 | u8 sleep_type_b; |
| 187 | |
| 188 | /* Validate parameter */ |
| 189 | |
| 190 | if (sleep_state > ACPI_S_STATES_MAX) { |
| 191 | acpi_os_printf("Sleep state %d out of range (%d max)\n", |
| 192 | sleep_state, ACPI_S_STATES_MAX); |
| 193 | return; |
| 194 | } |
| 195 | |
| 196 | acpi_os_printf("\n---- Invoking sleep state S%d (%s):\n", |
| 197 | sleep_state, acpi_gbl_sleep_state_names[sleep_state]); |
| 198 | |
| 199 | /* Get the values for the sleep type registers (for display only) */ |
| 200 | |
| 201 | status = |
| 202 | acpi_get_sleep_type_data(sleep_state, &sleep_type_a, &sleep_type_b); |
| 203 | if (ACPI_FAILURE(status)) { |
| 204 | acpi_os_printf("Could not evaluate [%s] method, %s\n", |
| 205 | acpi_gbl_sleep_state_names[sleep_state], |
| 206 | acpi_format_exception(status)); |
| 207 | return; |
| 208 | } |
| 209 | |
| 210 | acpi_os_printf |
| 211 | ("Register values for sleep state S%d: Sleep-A: %.2X, Sleep-B: %.2X\n", |
| 212 | sleep_state, sleep_type_a, sleep_type_b); |
| 213 | |
| 214 | /* Invoke the various sleep/wake interfaces */ |
| 215 | |
| 216 | acpi_os_printf("**** Sleep: Prepare to sleep (S%d) ****\n", |
| 217 | sleep_state); |
| 218 | status = acpi_enter_sleep_state_prep(sleep_state); |
| 219 | if (ACPI_FAILURE(status)) { |
| 220 | goto error_exit; |
| 221 | } |
| 222 | |
| 223 | acpi_os_printf("**** Sleep: Going to sleep (S%d) ****\n", sleep_state); |
| 224 | status = acpi_enter_sleep_state(sleep_state); |
| 225 | if (ACPI_FAILURE(status)) { |
| 226 | goto error_exit; |
| 227 | } |
| 228 | |
| 229 | acpi_os_printf("**** Wake: Prepare to return from sleep (S%d) ****\n", |
| 230 | sleep_state); |
| 231 | status = acpi_leave_sleep_state_prep(sleep_state); |
| 232 | if (ACPI_FAILURE(status)) { |
| 233 | goto error_exit; |
| 234 | } |
| 235 | |
| 236 | acpi_os_printf("**** Wake: Return from sleep (S%d) ****\n", |
| 237 | sleep_state); |
| 238 | status = acpi_leave_sleep_state(sleep_state); |
| 239 | if (ACPI_FAILURE(status)) { |
| 240 | goto error_exit; |
| 241 | } |
| 242 | |
| 243 | return; |
| 244 | |
| 245 | error_exit: |
| 246 | ACPI_EXCEPTION((AE_INFO, status, "During invocation of sleep state S%d", |
| 247 | sleep_state)); |
| 248 | } |
| 249 | |
| 250 | /******************************************************************************* |
| 251 | * |
| 252 | * FUNCTION: acpi_db_display_locks |
| 253 | * |
| 254 | * PARAMETERS: None |
| 255 | * |
| 256 | * RETURN: None |
| 257 | * |
| 258 | * DESCRIPTION: Display information about internal mutexes. |
| 259 | * |
| 260 | ******************************************************************************/ |
| 261 | |
| 262 | void acpi_db_display_locks(void) |
| 263 | { |
| 264 | u32 i; |
| 265 | |
| 266 | for (i = 0; i < ACPI_MAX_MUTEX; i++) { |
| 267 | acpi_os_printf("%26s : %s\n", acpi_ut_get_mutex_name(i), |
| 268 | acpi_gbl_mutex_info[i].thread_id == |
| 269 | ACPI_MUTEX_NOT_ACQUIRED ? "Locked" : "Unlocked"); |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | /******************************************************************************* |
| 274 | * |
| 275 | * FUNCTION: acpi_db_display_table_info |
| 276 | * |
| 277 | * PARAMETERS: table_arg - Name of table to be displayed |
| 278 | * |
| 279 | * RETURN: None |
| 280 | * |
| 281 | * DESCRIPTION: Display information about loaded tables. Current |
| 282 | * implementation displays all loaded tables. |
| 283 | * |
| 284 | ******************************************************************************/ |
| 285 | |
| 286 | void acpi_db_display_table_info(char *table_arg) |
| 287 | { |
| 288 | u32 i; |
| 289 | struct acpi_table_desc *table_desc; |
| 290 | acpi_status status; |
| 291 | |
| 292 | /* Header */ |
| 293 | |
| 294 | acpi_os_printf("Idx ID Status Type " |
| 295 | "TableHeader (Sig, Address, Length, Misc)\n"); |
| 296 | |
| 297 | /* Walk the entire root table list */ |
| 298 | |
| 299 | for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) { |
| 300 | table_desc = &acpi_gbl_root_table_list.tables[i]; |
| 301 | |
| 302 | /* Index and Table ID */ |
| 303 | |
| 304 | acpi_os_printf("%3u %.2u ", i, table_desc->owner_id); |
| 305 | |
| 306 | /* Decode the table flags */ |
| 307 | |
| 308 | if (!(table_desc->flags & ACPI_TABLE_IS_LOADED)) { |
| 309 | acpi_os_printf("NotLoaded "); |
| 310 | } else { |
| 311 | acpi_os_printf(" Loaded "); |
| 312 | } |
| 313 | |
| 314 | switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { |
| 315 | case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: |
| 316 | |
| 317 | acpi_os_printf("External/virtual "); |
| 318 | break; |
| 319 | |
| 320 | case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: |
| 321 | |
| 322 | acpi_os_printf("Internal/physical "); |
| 323 | break; |
| 324 | |
| 325 | case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: |
| 326 | |
| 327 | acpi_os_printf("Internal/virtual "); |
| 328 | break; |
| 329 | |
| 330 | default: |
| 331 | |
| 332 | acpi_os_printf("INVALID TYPE "); |
| 333 | break; |
| 334 | } |
| 335 | |
| 336 | /* Make sure that the table is mapped */ |
| 337 | |
| 338 | status = acpi_tb_validate_table(table_desc); |
| 339 | if (ACPI_FAILURE(status)) { |
| 340 | return; |
| 341 | } |
| 342 | |
| 343 | /* Dump the table header */ |
| 344 | |
| 345 | if (table_desc->pointer) { |
| 346 | acpi_tb_print_table_header(table_desc->address, |
| 347 | table_desc->pointer); |
| 348 | } else { |
| 349 | /* If the pointer is null, the table has been unloaded */ |
| 350 | |
| 351 | ACPI_INFO((AE_INFO, "%4.4s - Table has been unloaded", |
| 352 | table_desc->signature.ascii)); |
| 353 | } |
| 354 | } |
| 355 | } |
| 356 | |
| 357 | /******************************************************************************* |
| 358 | * |
| 359 | * FUNCTION: acpi_db_unload_acpi_table |
| 360 | * |
| 361 | * PARAMETERS: object_name - Namespace pathname for an object that |
| 362 | * is owned by the table to be unloaded |
| 363 | * |
| 364 | * RETURN: None |
| 365 | * |
| 366 | * DESCRIPTION: Unload an ACPI table, via any namespace node that is owned |
| 367 | * by the table. |
| 368 | * |
| 369 | ******************************************************************************/ |
| 370 | |
| 371 | void acpi_db_unload_acpi_table(char *object_name) |
| 372 | { |
| 373 | struct acpi_namespace_node *node; |
| 374 | acpi_status status; |
| 375 | |
| 376 | /* Translate name to an Named object */ |
| 377 | |
| 378 | node = acpi_db_convert_to_node(object_name); |
| 379 | if (!node) { |
| 380 | return; |
| 381 | } |
| 382 | |
| 383 | status = acpi_unload_parent_table(ACPI_CAST_PTR(acpi_handle, node)); |
| 384 | if (ACPI_SUCCESS(status)) { |
| 385 | acpi_os_printf("Parent of [%s] (%p) unloaded and uninstalled\n", |
| 386 | object_name, node); |
| 387 | } else { |
| 388 | acpi_os_printf("%s, while unloading parent table of [%s]\n", |
| 389 | acpi_format_exception(status), object_name); |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | /******************************************************************************* |
| 394 | * |
| 395 | * FUNCTION: acpi_db_send_notify |
| 396 | * |
| 397 | * PARAMETERS: name - Name of ACPI object where to send notify |
| 398 | * value - Value of the notify to send. |
| 399 | * |
| 400 | * RETURN: None |
| 401 | * |
| 402 | * DESCRIPTION: Send an ACPI notification. The value specified is sent to the |
| 403 | * named object as an ACPI notify. |
| 404 | * |
| 405 | ******************************************************************************/ |
| 406 | |
| 407 | void acpi_db_send_notify(char *name, u32 value) |
| 408 | { |
| 409 | struct acpi_namespace_node *node; |
| 410 | acpi_status status; |
| 411 | |
| 412 | /* Translate name to an Named object */ |
| 413 | |
| 414 | node = acpi_db_convert_to_node(name); |
| 415 | if (!node) { |
| 416 | return; |
| 417 | } |
| 418 | |
| 419 | /* Dispatch the notify if legal */ |
| 420 | |
| 421 | if (acpi_ev_is_notify_object(node)) { |
| 422 | status = acpi_ev_queue_notify_request(node, value); |
| 423 | if (ACPI_FAILURE(status)) { |
| 424 | acpi_os_printf("Could not queue notify\n"); |
| 425 | } |
| 426 | } else { |
| 427 | acpi_os_printf("Named object [%4.4s] Type %s, " |
| 428 | "must be Device/Thermal/Processor type\n", |
| 429 | acpi_ut_get_node_name(node), |
| 430 | acpi_ut_get_type_name(node->type)); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | /******************************************************************************* |
| 435 | * |
| 436 | * FUNCTION: acpi_db_display_interfaces |
| 437 | * |
| 438 | * PARAMETERS: action_arg - Null, "install", or "remove" |
| 439 | * interface_name_arg - Name for install/remove options |
| 440 | * |
| 441 | * RETURN: None |
| 442 | * |
| 443 | * DESCRIPTION: Display or modify the global _OSI interface list |
| 444 | * |
| 445 | ******************************************************************************/ |
| 446 | |
| 447 | void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg) |
| 448 | { |
| 449 | struct acpi_interface_info *next_interface; |
| 450 | char *sub_string; |
| 451 | acpi_status status; |
| 452 | |
| 453 | /* If no arguments, just display current interface list */ |
| 454 | |
| 455 | if (!action_arg) { |
| 456 | (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, |
| 457 | ACPI_WAIT_FOREVER); |
| 458 | |
| 459 | next_interface = acpi_gbl_supported_interfaces; |
| 460 | while (next_interface) { |
| 461 | if (!(next_interface->flags & ACPI_OSI_INVALID)) { |
| 462 | acpi_os_printf("%s\n", next_interface->name); |
| 463 | } |
| 464 | |
| 465 | next_interface = next_interface->next; |
| 466 | } |
| 467 | |
| 468 | acpi_os_release_mutex(acpi_gbl_osi_mutex); |
| 469 | return; |
| 470 | } |
| 471 | |
| 472 | /* If action_arg exists, so must interface_name_arg */ |
| 473 | |
| 474 | if (!interface_name_arg) { |
| 475 | acpi_os_printf("Missing Interface Name argument\n"); |
| 476 | return; |
| 477 | } |
| 478 | |
| 479 | /* Uppercase the action for match below */ |
| 480 | |
| 481 | acpi_ut_strupr(action_arg); |
| 482 | |
| 483 | /* install - install an interface */ |
| 484 | |
| 485 | sub_string = strstr("INSTALL", action_arg); |
| 486 | if (sub_string) { |
| 487 | status = acpi_install_interface(interface_name_arg); |
| 488 | if (ACPI_FAILURE(status)) { |
| 489 | acpi_os_printf("%s, while installing \"%s\"\n", |
| 490 | acpi_format_exception(status), |
| 491 | interface_name_arg); |
| 492 | } |
| 493 | return; |
| 494 | } |
| 495 | |
| 496 | /* remove - remove an interface */ |
| 497 | |
| 498 | sub_string = strstr("REMOVE", action_arg); |
| 499 | if (sub_string) { |
| 500 | status = acpi_remove_interface(interface_name_arg); |
| 501 | if (ACPI_FAILURE(status)) { |
| 502 | acpi_os_printf("%s, while removing \"%s\"\n", |
| 503 | acpi_format_exception(status), |
| 504 | interface_name_arg); |
| 505 | } |
| 506 | return; |
| 507 | } |
| 508 | |
| 509 | /* Invalid action_arg */ |
| 510 | |
| 511 | acpi_os_printf("Invalid action argument: %s\n", action_arg); |
| 512 | return; |
| 513 | } |
| 514 | |
| 515 | /******************************************************************************* |
| 516 | * |
| 517 | * FUNCTION: acpi_db_display_template |
| 518 | * |
| 519 | * PARAMETERS: buffer_arg - Buffer name or address |
| 520 | * |
| 521 | * RETURN: None |
| 522 | * |
| 523 | * DESCRIPTION: Dump a buffer that contains a resource template |
| 524 | * |
| 525 | ******************************************************************************/ |
| 526 | |
| 527 | void acpi_db_display_template(char *buffer_arg) |
| 528 | { |
| 529 | struct acpi_namespace_node *node; |
| 530 | acpi_status status; |
| 531 | struct acpi_buffer return_buffer; |
| 532 | |
| 533 | /* Translate buffer_arg to an Named object */ |
| 534 | |
| 535 | node = acpi_db_convert_to_node(buffer_arg); |
| 536 | if (!node || (node == acpi_gbl_root_node)) { |
| 537 | acpi_os_printf("Invalid argument: %s\n", buffer_arg); |
| 538 | return; |
| 539 | } |
| 540 | |
| 541 | /* We must have a buffer object */ |
| 542 | |
| 543 | if (node->type != ACPI_TYPE_BUFFER) { |
| 544 | acpi_os_printf |
| 545 | ("Not a Buffer object, cannot be a template: %s\n", |
| 546 | buffer_arg); |
| 547 | return; |
| 548 | } |
| 549 | |
| 550 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 551 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 552 | |
| 553 | /* Attempt to convert the raw buffer to a resource list */ |
| 554 | |
| 555 | status = acpi_rs_create_resource_list(node->object, &return_buffer); |
| 556 | |
| 557 | acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); |
| 558 | acpi_dbg_level |= ACPI_LV_RESOURCES; |
| 559 | |
| 560 | if (ACPI_FAILURE(status)) { |
| 561 | acpi_os_printf |
| 562 | ("Could not convert Buffer to a resource list: %s, %s\n", |
| 563 | buffer_arg, acpi_format_exception(status)); |
| 564 | goto dump_buffer; |
| 565 | } |
| 566 | |
| 567 | /* Now we can dump the resource list */ |
| 568 | |
| 569 | acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource, |
| 570 | return_buffer.pointer)); |
| 571 | |
| 572 | dump_buffer: |
| 573 | acpi_os_printf("\nRaw data buffer:\n"); |
| 574 | acpi_ut_debug_dump_buffer((u8 *)node->object->buffer.pointer, |
| 575 | node->object->buffer.length, |
| 576 | DB_BYTE_DISPLAY, ACPI_UINT32_MAX); |
| 577 | |
| 578 | acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); |
| 579 | return; |
| 580 | } |
| 581 | |
| 582 | /******************************************************************************* |
| 583 | * |
| 584 | * FUNCTION: acpi_dm_compare_aml_resources |
| 585 | * |
| 586 | * PARAMETERS: aml1_buffer - Contains first resource list |
| 587 | * aml1_buffer_length - Length of first resource list |
| 588 | * aml2_buffer - Contains second resource list |
| 589 | * aml2_buffer_length - Length of second resource list |
| 590 | * |
| 591 | * RETURN: None |
| 592 | * |
| 593 | * DESCRIPTION: Compare two AML resource lists, descriptor by descriptor (in |
| 594 | * order to isolate a miscompare to an individual resource) |
| 595 | * |
| 596 | ******************************************************************************/ |
| 597 | |
| 598 | static void |
| 599 | acpi_dm_compare_aml_resources(u8 *aml1_buffer, |
| 600 | acpi_rsdesc_size aml1_buffer_length, |
| 601 | u8 *aml2_buffer, |
| 602 | acpi_rsdesc_size aml2_buffer_length) |
| 603 | { |
| 604 | u8 *aml1; |
| 605 | u8 *aml2; |
| 606 | u8 *aml1_end; |
| 607 | u8 *aml2_end; |
| 608 | acpi_rsdesc_size aml1_length; |
| 609 | acpi_rsdesc_size aml2_length; |
| 610 | acpi_rsdesc_size offset = 0; |
| 611 | u8 resource_type; |
| 612 | u32 count = 0; |
| 613 | u32 i; |
| 614 | |
| 615 | /* Compare overall buffer sizes (may be different due to size rounding) */ |
| 616 | |
| 617 | if (aml1_buffer_length != aml2_buffer_length) { |
| 618 | acpi_os_printf("**** Buffer length mismatch in converted " |
| 619 | "AML: Original %X, New %X ****\n", |
| 620 | aml1_buffer_length, aml2_buffer_length); |
| 621 | } |
| 622 | |
| 623 | aml1 = aml1_buffer; |
| 624 | aml2 = aml2_buffer; |
| 625 | aml1_end = aml1_buffer + aml1_buffer_length; |
| 626 | aml2_end = aml2_buffer + aml2_buffer_length; |
| 627 | |
| 628 | /* Walk the descriptor lists, comparing each descriptor */ |
| 629 | |
| 630 | while ((aml1 < aml1_end) && (aml2 < aml2_end)) { |
| 631 | |
| 632 | /* Get the lengths of each descriptor */ |
| 633 | |
| 634 | aml1_length = acpi_ut_get_descriptor_length(aml1); |
| 635 | aml2_length = acpi_ut_get_descriptor_length(aml2); |
| 636 | resource_type = acpi_ut_get_resource_type(aml1); |
| 637 | |
| 638 | /* Check for descriptor length match */ |
| 639 | |
| 640 | if (aml1_length != aml2_length) { |
| 641 | acpi_os_printf |
| 642 | ("**** Length mismatch in descriptor [%.2X] type %2.2X, " |
| 643 | "Offset %8.8X Len1 %X, Len2 %X ****\n", count, |
| 644 | resource_type, offset, aml1_length, aml2_length); |
| 645 | } |
| 646 | |
| 647 | /* Check for descriptor byte match */ |
| 648 | |
| 649 | else if (memcmp(aml1, aml2, aml1_length)) { |
| 650 | acpi_os_printf |
| 651 | ("**** Data mismatch in descriptor [%.2X] type %2.2X, " |
| 652 | "Offset %8.8X ****\n", count, resource_type, |
| 653 | offset); |
| 654 | |
| 655 | for (i = 0; i < aml1_length; i++) { |
| 656 | if (aml1[i] != aml2[i]) { |
| 657 | acpi_os_printf |
| 658 | ("Mismatch at byte offset %.2X: is %2.2X, " |
| 659 | "should be %2.2X\n", i, aml2[i], |
| 660 | aml1[i]); |
| 661 | } |
| 662 | } |
| 663 | } |
| 664 | |
| 665 | /* Exit on end_tag descriptor */ |
| 666 | |
| 667 | if (resource_type == ACPI_RESOURCE_NAME_END_TAG) { |
| 668 | return; |
| 669 | } |
| 670 | |
| 671 | /* Point to next descriptor in each buffer */ |
| 672 | |
| 673 | count++; |
| 674 | offset += aml1_length; |
| 675 | aml1 += aml1_length; |
| 676 | aml2 += aml2_length; |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | /******************************************************************************* |
| 681 | * |
| 682 | * FUNCTION: acpi_dm_test_resource_conversion |
| 683 | * |
| 684 | * PARAMETERS: node - Parent device node |
| 685 | * name - resource method name (_CRS) |
| 686 | * |
| 687 | * RETURN: Status |
| 688 | * |
| 689 | * DESCRIPTION: Compare the original AML with a conversion of the AML to |
| 690 | * internal resource list, then back to AML. |
| 691 | * |
| 692 | ******************************************************************************/ |
| 693 | |
| 694 | static acpi_status |
| 695 | acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name) |
| 696 | { |
| 697 | acpi_status status; |
| 698 | struct acpi_buffer return_buffer; |
| 699 | struct acpi_buffer resource_buffer; |
| 700 | struct acpi_buffer new_aml; |
| 701 | union acpi_object *original_aml; |
| 702 | |
| 703 | acpi_os_printf("Resource Conversion Comparison:\n"); |
| 704 | |
| 705 | new_aml.length = ACPI_ALLOCATE_LOCAL_BUFFER; |
| 706 | return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; |
| 707 | resource_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; |
| 708 | |
| 709 | /* Get the original _CRS AML resource template */ |
| 710 | |
| 711 | status = acpi_evaluate_object(node, name, NULL, &return_buffer); |
| 712 | if (ACPI_FAILURE(status)) { |
| 713 | acpi_os_printf("Could not obtain %s: %s\n", |
| 714 | name, acpi_format_exception(status)); |
| 715 | return (status); |
| 716 | } |
| 717 | |
| 718 | /* Get the AML resource template, converted to internal resource structs */ |
| 719 | |
| 720 | status = acpi_get_current_resources(node, &resource_buffer); |
| 721 | if (ACPI_FAILURE(status)) { |
| 722 | acpi_os_printf("AcpiGetCurrentResources failed: %s\n", |
| 723 | acpi_format_exception(status)); |
| 724 | goto exit1; |
| 725 | } |
| 726 | |
| 727 | /* Convert internal resource list to external AML resource template */ |
| 728 | |
| 729 | status = acpi_rs_create_aml_resources(&resource_buffer, &new_aml); |
| 730 | if (ACPI_FAILURE(status)) { |
| 731 | acpi_os_printf("AcpiRsCreateAmlResources failed: %s\n", |
| 732 | acpi_format_exception(status)); |
| 733 | goto exit2; |
| 734 | } |
| 735 | |
| 736 | /* Compare original AML to the newly created AML resource list */ |
| 737 | |
| 738 | original_aml = return_buffer.pointer; |
| 739 | |
| 740 | acpi_dm_compare_aml_resources(original_aml->buffer.pointer, |
| 741 | (acpi_rsdesc_size) original_aml->buffer. |
| 742 | length, new_aml.pointer, |
| 743 | (acpi_rsdesc_size) new_aml.length); |
| 744 | |
| 745 | /* Cleanup and exit */ |
| 746 | |
| 747 | ACPI_FREE(new_aml.pointer); |
| 748 | exit2: |
| 749 | ACPI_FREE(resource_buffer.pointer); |
| 750 | exit1: |
| 751 | ACPI_FREE(return_buffer.pointer); |
| 752 | return (status); |
| 753 | } |
| 754 | |
| 755 | /******************************************************************************* |
| 756 | * |
| 757 | * FUNCTION: acpi_db_resource_callback |
| 758 | * |
| 759 | * PARAMETERS: acpi_walk_resource_callback |
| 760 | * |
| 761 | * RETURN: Status |
| 762 | * |
| 763 | * DESCRIPTION: Simple callback to exercise acpi_walk_resources and |
| 764 | * acpi_walk_resource_buffer. |
| 765 | * |
| 766 | ******************************************************************************/ |
| 767 | |
| 768 | static acpi_status |
| 769 | acpi_db_resource_callback(struct acpi_resource *resource, void *context) |
| 770 | { |
| 771 | |
| 772 | return (AE_OK); |
| 773 | } |
| 774 | |
| 775 | /******************************************************************************* |
| 776 | * |
| 777 | * FUNCTION: acpi_db_device_resources |
| 778 | * |
| 779 | * PARAMETERS: acpi_walk_callback |
| 780 | * |
| 781 | * RETURN: Status |
| 782 | * |
| 783 | * DESCRIPTION: Display the _PRT/_CRS/_PRS resources for a device object. |
| 784 | * |
| 785 | ******************************************************************************/ |
| 786 | |
| 787 | static acpi_status |
| 788 | acpi_db_device_resources(acpi_handle obj_handle, |
| 789 | u32 nesting_level, void *context, void **return_value) |
| 790 | { |
| 791 | struct acpi_namespace_node *node; |
| 792 | struct acpi_namespace_node *prt_node = NULL; |
| 793 | struct acpi_namespace_node *crs_node = NULL; |
| 794 | struct acpi_namespace_node *prs_node = NULL; |
| 795 | struct acpi_namespace_node *aei_node = NULL; |
| 796 | char *parent_path; |
| 797 | struct acpi_buffer return_buffer; |
| 798 | acpi_status status; |
| 799 | |
| 800 | node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); |
| 801 | parent_path = acpi_ns_get_external_pathname(node); |
| 802 | if (!parent_path) { |
| 803 | return (AE_NO_MEMORY); |
| 804 | } |
| 805 | |
| 806 | /* Get handles to the resource methods for this device */ |
| 807 | |
| 808 | (void)acpi_get_handle(node, METHOD_NAME__PRT, |
| 809 | ACPI_CAST_PTR(acpi_handle, &prt_node)); |
| 810 | (void)acpi_get_handle(node, METHOD_NAME__CRS, |
| 811 | ACPI_CAST_PTR(acpi_handle, &crs_node)); |
| 812 | (void)acpi_get_handle(node, METHOD_NAME__PRS, |
| 813 | ACPI_CAST_PTR(acpi_handle, &prs_node)); |
| 814 | (void)acpi_get_handle(node, METHOD_NAME__AEI, |
| 815 | ACPI_CAST_PTR(acpi_handle, &aei_node)); |
| 816 | |
| 817 | if (!prt_node && !crs_node && !prs_node && !aei_node) { |
| 818 | goto cleanup; /* Nothing to do */ |
| 819 | } |
| 820 | |
| 821 | acpi_os_printf("\nDevice: %s\n", parent_path); |
| 822 | |
| 823 | /* Prepare for a return object of arbitrary size */ |
| 824 | |
| 825 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 826 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 827 | |
| 828 | /* _PRT */ |
| 829 | |
| 830 | if (prt_node) { |
| 831 | acpi_os_printf("Evaluating _PRT\n"); |
| 832 | |
| 833 | status = |
| 834 | acpi_evaluate_object(prt_node, NULL, NULL, &return_buffer); |
| 835 | if (ACPI_FAILURE(status)) { |
| 836 | acpi_os_printf("Could not evaluate _PRT: %s\n", |
| 837 | acpi_format_exception(status)); |
| 838 | goto get_crs; |
| 839 | } |
| 840 | |
| 841 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 842 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 843 | |
| 844 | status = acpi_get_irq_routing_table(node, &return_buffer); |
| 845 | if (ACPI_FAILURE(status)) { |
| 846 | acpi_os_printf("GetIrqRoutingTable failed: %s\n", |
| 847 | acpi_format_exception(status)); |
| 848 | goto get_crs; |
| 849 | } |
| 850 | |
| 851 | acpi_rs_dump_irq_list(ACPI_CAST_PTR(u8, acpi_gbl_db_buffer)); |
| 852 | } |
| 853 | |
| 854 | /* _CRS */ |
| 855 | |
| 856 | get_crs: |
| 857 | if (crs_node) { |
| 858 | acpi_os_printf("Evaluating _CRS\n"); |
| 859 | |
| 860 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 861 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 862 | |
| 863 | status = |
| 864 | acpi_evaluate_object(crs_node, NULL, NULL, &return_buffer); |
| 865 | if (ACPI_FAILURE(status)) { |
| 866 | acpi_os_printf("Could not evaluate _CRS: %s\n", |
| 867 | acpi_format_exception(status)); |
| 868 | goto get_prs; |
| 869 | } |
| 870 | |
| 871 | /* This code exercises the acpi_walk_resources interface */ |
| 872 | |
| 873 | status = acpi_walk_resources(node, METHOD_NAME__CRS, |
| 874 | acpi_db_resource_callback, NULL); |
| 875 | if (ACPI_FAILURE(status)) { |
| 876 | acpi_os_printf("AcpiWalkResources failed: %s\n", |
| 877 | acpi_format_exception(status)); |
| 878 | goto get_prs; |
| 879 | } |
| 880 | |
| 881 | /* Get the _CRS resource list (test ALLOCATE buffer) */ |
| 882 | |
| 883 | return_buffer.pointer = NULL; |
| 884 | return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; |
| 885 | |
| 886 | status = acpi_get_current_resources(node, &return_buffer); |
| 887 | if (ACPI_FAILURE(status)) { |
| 888 | acpi_os_printf("AcpiGetCurrentResources failed: %s\n", |
| 889 | acpi_format_exception(status)); |
| 890 | goto get_prs; |
| 891 | } |
| 892 | |
| 893 | /* This code exercises the acpi_walk_resource_buffer interface */ |
| 894 | |
| 895 | status = acpi_walk_resource_buffer(&return_buffer, |
| 896 | acpi_db_resource_callback, |
| 897 | NULL); |
| 898 | if (ACPI_FAILURE(status)) { |
| 899 | acpi_os_printf("AcpiWalkResourceBuffer failed: %s\n", |
| 900 | acpi_format_exception(status)); |
| 901 | goto end_crs; |
| 902 | } |
| 903 | |
| 904 | /* Dump the _CRS resource list */ |
| 905 | |
| 906 | acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource, |
| 907 | return_buffer. |
| 908 | pointer)); |
| 909 | |
| 910 | /* |
| 911 | * Perform comparison of original AML to newly created AML. This |
| 912 | * tests both the AML->Resource conversion and the Resource->AML |
| 913 | * conversion. |
| 914 | */ |
| 915 | (void)acpi_dm_test_resource_conversion(node, METHOD_NAME__CRS); |
| 916 | |
| 917 | /* Execute _SRS with the resource list */ |
| 918 | |
| 919 | acpi_os_printf("Evaluating _SRS\n"); |
| 920 | |
| 921 | status = acpi_set_current_resources(node, &return_buffer); |
| 922 | if (ACPI_FAILURE(status)) { |
| 923 | acpi_os_printf("AcpiSetCurrentResources failed: %s\n", |
| 924 | acpi_format_exception(status)); |
| 925 | goto end_crs; |
| 926 | } |
| 927 | |
| 928 | end_crs: |
| 929 | ACPI_FREE(return_buffer.pointer); |
| 930 | } |
| 931 | |
| 932 | /* _PRS */ |
| 933 | |
| 934 | get_prs: |
| 935 | if (prs_node) { |
| 936 | acpi_os_printf("Evaluating _PRS\n"); |
| 937 | |
| 938 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 939 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 940 | |
| 941 | status = |
| 942 | acpi_evaluate_object(prs_node, NULL, NULL, &return_buffer); |
| 943 | if (ACPI_FAILURE(status)) { |
| 944 | acpi_os_printf("Could not evaluate _PRS: %s\n", |
| 945 | acpi_format_exception(status)); |
| 946 | goto get_aei; |
| 947 | } |
| 948 | |
| 949 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 950 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 951 | |
| 952 | status = acpi_get_possible_resources(node, &return_buffer); |
| 953 | if (ACPI_FAILURE(status)) { |
| 954 | acpi_os_printf("AcpiGetPossibleResources failed: %s\n", |
| 955 | acpi_format_exception(status)); |
| 956 | goto get_aei; |
| 957 | } |
| 958 | |
| 959 | acpi_rs_dump_resource_list(ACPI_CAST_PTR |
| 960 | (struct acpi_resource, |
| 961 | acpi_gbl_db_buffer)); |
| 962 | } |
| 963 | |
| 964 | /* _AEI */ |
| 965 | |
| 966 | get_aei: |
| 967 | if (aei_node) { |
| 968 | acpi_os_printf("Evaluating _AEI\n"); |
| 969 | |
| 970 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 971 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 972 | |
| 973 | status = |
| 974 | acpi_evaluate_object(aei_node, NULL, NULL, &return_buffer); |
| 975 | if (ACPI_FAILURE(status)) { |
| 976 | acpi_os_printf("Could not evaluate _AEI: %s\n", |
| 977 | acpi_format_exception(status)); |
| 978 | goto cleanup; |
| 979 | } |
| 980 | |
| 981 | return_buffer.pointer = acpi_gbl_db_buffer; |
| 982 | return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; |
| 983 | |
| 984 | status = acpi_get_event_resources(node, &return_buffer); |
| 985 | if (ACPI_FAILURE(status)) { |
| 986 | acpi_os_printf("AcpiGetEventResources failed: %s\n", |
| 987 | acpi_format_exception(status)); |
| 988 | goto cleanup; |
| 989 | } |
| 990 | |
| 991 | acpi_rs_dump_resource_list(ACPI_CAST_PTR |
| 992 | (struct acpi_resource, |
| 993 | acpi_gbl_db_buffer)); |
| 994 | } |
| 995 | |
| 996 | cleanup: |
| 997 | ACPI_FREE(parent_path); |
| 998 | return (AE_OK); |
| 999 | } |
| 1000 | |
| 1001 | /******************************************************************************* |
| 1002 | * |
| 1003 | * FUNCTION: acpi_db_display_resources |
| 1004 | * |
| 1005 | * PARAMETERS: object_arg - String object name or object pointer. |
| 1006 | * NULL or "*" means "display resources for |
| 1007 | * all devices" |
| 1008 | * |
| 1009 | * RETURN: None |
| 1010 | * |
| 1011 | * DESCRIPTION: Display the resource objects associated with a device. |
| 1012 | * |
| 1013 | ******************************************************************************/ |
| 1014 | |
| 1015 | void acpi_db_display_resources(char *object_arg) |
| 1016 | { |
| 1017 | struct acpi_namespace_node *node; |
| 1018 | |
| 1019 | acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); |
| 1020 | acpi_dbg_level |= ACPI_LV_RESOURCES; |
| 1021 | |
| 1022 | /* Asterisk means "display resources for all devices" */ |
| 1023 | |
| 1024 | if (!object_arg || (!strcmp(object_arg, "*"))) { |
| 1025 | (void)acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, |
| 1026 | ACPI_UINT32_MAX, |
| 1027 | acpi_db_device_resources, NULL, NULL, |
| 1028 | NULL); |
| 1029 | } else { |
| 1030 | /* Convert string to object pointer */ |
| 1031 | |
| 1032 | node = acpi_db_convert_to_node(object_arg); |
| 1033 | if (node) { |
| 1034 | if (node->type != ACPI_TYPE_DEVICE) { |
| 1035 | acpi_os_printf |
| 1036 | ("%4.4s: Name is not a device object (%s)\n", |
| 1037 | node->name.ascii, |
| 1038 | acpi_ut_get_type_name(node->type)); |
| 1039 | } else { |
| 1040 | (void)acpi_db_device_resources(node, 0, NULL, |
| 1041 | NULL); |
| 1042 | } |
| 1043 | } |
| 1044 | } |
| 1045 | |
| 1046 | acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); |
| 1047 | } |
| 1048 | |
| 1049 | #if (!ACPI_REDUCED_HARDWARE) |
| 1050 | /******************************************************************************* |
| 1051 | * |
| 1052 | * FUNCTION: acpi_db_generate_gpe |
| 1053 | * |
| 1054 | * PARAMETERS: gpe_arg - Raw GPE number, ascii string |
| 1055 | * block_arg - GPE block number, ascii string |
| 1056 | * 0 or 1 for FADT GPE blocks |
| 1057 | * |
| 1058 | * RETURN: None |
| 1059 | * |
| 1060 | * DESCRIPTION: Simulate firing of a GPE |
| 1061 | * |
| 1062 | ******************************************************************************/ |
| 1063 | |
| 1064 | void acpi_db_generate_gpe(char *gpe_arg, char *block_arg) |
| 1065 | { |
| 1066 | u32 block_number = 0; |
| 1067 | u32 gpe_number; |
| 1068 | struct acpi_gpe_event_info *gpe_event_info; |
| 1069 | |
| 1070 | gpe_number = strtoul(gpe_arg, NULL, 0); |
| 1071 | |
| 1072 | /* |
| 1073 | * If no block arg, or block arg == 0 or 1, use the FADT-defined |
| 1074 | * GPE blocks. |
| 1075 | */ |
| 1076 | if (block_arg) { |
| 1077 | block_number = strtoul(block_arg, NULL, 0); |
| 1078 | if (block_number == 1) { |
| 1079 | block_number = 0; |
| 1080 | } |
| 1081 | } |
| 1082 | |
| 1083 | gpe_event_info = |
| 1084 | acpi_ev_get_gpe_event_info(ACPI_TO_POINTER(block_number), |
| 1085 | gpe_number); |
| 1086 | if (!gpe_event_info) { |
| 1087 | acpi_os_printf("Invalid GPE\n"); |
| 1088 | return; |
| 1089 | } |
| 1090 | |
| 1091 | (void)acpi_ev_gpe_dispatch(NULL, gpe_event_info, gpe_number); |
| 1092 | } |
| 1093 | |
| 1094 | /******************************************************************************* |
| 1095 | * |
| 1096 | * FUNCTION: acpi_db_generate_sci |
| 1097 | * |
| 1098 | * PARAMETERS: None |
| 1099 | * |
| 1100 | * RETURN: None |
| 1101 | * |
| 1102 | * DESCRIPTION: Simulate an SCI -- just call the SCI dispatch. |
| 1103 | * |
| 1104 | ******************************************************************************/ |
| 1105 | |
| 1106 | void acpi_db_generate_sci(void) |
| 1107 | { |
| 1108 | acpi_ev_sci_dispatch(); |
| 1109 | } |
| 1110 | |
| 1111 | #endif /* !ACPI_REDUCED_HARDWARE */ |
| 1112 | |
| 1113 | /******************************************************************************* |
| 1114 | * |
| 1115 | * FUNCTION: acpi_db_trace |
| 1116 | * |
| 1117 | * PARAMETERS: enable_arg - ENABLE/AML to enable tracer |
| 1118 | * DISABLE to disable tracer |
| 1119 | * method_arg - Method to trace |
| 1120 | * once_arg - Whether trace once |
| 1121 | * |
| 1122 | * RETURN: None |
| 1123 | * |
| 1124 | * DESCRIPTION: Control method tracing facility |
| 1125 | * |
| 1126 | ******************************************************************************/ |
| 1127 | |
| 1128 | void acpi_db_trace(char *enable_arg, char *method_arg, char *once_arg) |
| 1129 | { |
| 1130 | u32 debug_level = 0; |
| 1131 | u32 debug_layer = 0; |
| 1132 | u32 flags = 0; |
| 1133 | |
| 1134 | if (enable_arg) { |
| 1135 | acpi_ut_strupr(enable_arg); |
| 1136 | } |
| 1137 | |
| 1138 | if (once_arg) { |
| 1139 | acpi_ut_strupr(once_arg); |
| 1140 | } |
| 1141 | |
| 1142 | if (method_arg) { |
| 1143 | if (acpi_db_trace_method_name) { |
| 1144 | ACPI_FREE(acpi_db_trace_method_name); |
| 1145 | acpi_db_trace_method_name = NULL; |
| 1146 | } |
| 1147 | |
| 1148 | acpi_db_trace_method_name = |
| 1149 | ACPI_ALLOCATE(strlen(method_arg) + 1); |
| 1150 | if (!acpi_db_trace_method_name) { |
| 1151 | acpi_os_printf("Failed to allocate method name (%s)\n", |
| 1152 | method_arg); |
| 1153 | return; |
| 1154 | } |
| 1155 | |
| 1156 | strcpy(acpi_db_trace_method_name, method_arg); |
| 1157 | } |
| 1158 | |
| 1159 | if (!strcmp(enable_arg, "ENABLE") || |
| 1160 | !strcmp(enable_arg, "METHOD") || !strcmp(enable_arg, "OPCODE")) { |
| 1161 | if (!strcmp(enable_arg, "ENABLE")) { |
| 1162 | |
| 1163 | /* Inherit current console settings */ |
| 1164 | |
| 1165 | debug_level = acpi_gbl_db_console_debug_level; |
| 1166 | debug_layer = acpi_dbg_layer; |
| 1167 | } else { |
| 1168 | /* Restrict console output to trace points only */ |
| 1169 | |
| 1170 | debug_level = ACPI_LV_TRACE_POINT; |
| 1171 | debug_layer = ACPI_EXECUTER; |
| 1172 | } |
| 1173 | |
| 1174 | flags = ACPI_TRACE_ENABLED; |
| 1175 | |
| 1176 | if (!strcmp(enable_arg, "OPCODE")) { |
| 1177 | flags |= ACPI_TRACE_OPCODE; |
| 1178 | } |
| 1179 | |
| 1180 | if (once_arg && !strcmp(once_arg, "ONCE")) { |
| 1181 | flags |= ACPI_TRACE_ONESHOT; |
| 1182 | } |
| 1183 | } |
| 1184 | |
| 1185 | (void)acpi_debug_trace(acpi_db_trace_method_name, |
| 1186 | debug_level, debug_layer, flags); |
| 1187 | } |