Pileus Git - ~andy/linux/blob - drivers/acpi/acpica/rsdump.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsdump - Functions to display the resource structures.
   4  *
   5  ******************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2013, 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 "acresrc.h"
  47
  48 #define _COMPONENT          ACPI_RESOURCES
  49 ACPI_MODULE_NAME("rsdump")
  50 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
  51 /* Local prototypes */
  52 static void acpi_rs_out_string(char *title, char *value);
  53
  54 static void acpi_rs_out_integer8(char *title, u8 value);
  55
  56 static void acpi_rs_out_integer16(char *title, u16 value);
  57
  58 static void acpi_rs_out_integer32(char *title, u32 value);
  59
  60 static void acpi_rs_out_integer64(char *title, u64 value);
  61
  62 static void acpi_rs_out_title(char *title);
  63
  64 static void acpi_rs_dump_byte_list(u16 length, u8 *data);
  65
  66 static void acpi_rs_dump_word_list(u16 length, u16 *data);
  67
  68 static void acpi_rs_dump_dword_list(u8 length, u32 *data);
  69
  70 static void acpi_rs_dump_short_byte_list(u8 length, u8 *data);
  71
  72 static void
  73 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
  74
  75 static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
  76
  77 static void
  78 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
  79
  80 /*******************************************************************************
  81  *
  82  * FUNCTION:    acpi_rs_dump_descriptor
  83  *
  84  * PARAMETERS:  resource            - Buffer containing the resource
  85  *              table               - Table entry to decode the resource
  86  *
  87  * RETURN:      None
  88  *
  89  * DESCRIPTION: Dump a resource descriptor based on a dump table entry.
  90  *
  91  ******************************************************************************/
  92
  93 static void
  94 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
  95 {
  96         u8 *target = NULL;
  97         u8 *previous_target;
  98         char *name;
  99         u8 count;
 100
 101         /* First table entry must contain the table length (# of table entries) */
 102
 103         count = table->offset;
 104
 105         while (count) {
 106                 previous_target = target;
 107                 target = ACPI_ADD_PTR(u8, resource, table->offset);
 108                 name = table->name;
 109
 110                 switch (table->opcode) {
 111                 case ACPI_RSD_TITLE:
 112                         /*
 113                          * Optional resource title
 114                          */
 115                         if (table->name) {
 116                                 acpi_os_printf("%s Resource\n", name);
 117                         }
 118                         break;
 119
 120                         /* Strings */
 121
 122                 case ACPI_RSD_LITERAL:
 123                         acpi_rs_out_string(name,
 124                                            ACPI_CAST_PTR(char, table->pointer));
 125                         break;
 126
 127                 case ACPI_RSD_STRING:
 128                         acpi_rs_out_string(name, ACPI_CAST_PTR(char, target));
 129                         break;
 130
 131                         /* Data items, 8/16/32/64 bit */
 132
 133                 case ACPI_RSD_UINT8:
 134                         if (table->pointer) {
 135                                 acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 136                                                                        table->
 137                                                                        pointer
 138                                                                        [*target]));
 139                         } else {
 140                                 acpi_rs_out_integer8(name, ACPI_GET8(target));
 141                         }
 142                         break;
 143
 144                 case ACPI_RSD_UINT16:
 145                         acpi_rs_out_integer16(name, ACPI_GET16(target));
 146                         break;
 147
 148                 case ACPI_RSD_UINT32:
 149                         acpi_rs_out_integer32(name, ACPI_GET32(target));
 150                         break;
 151
 152                 case ACPI_RSD_UINT64:
 153                         acpi_rs_out_integer64(name, ACPI_GET64(target));
 154                         break;
 155
 156                         /* Flags: 1-bit and 2-bit flags supported */
 157
 158                 case ACPI_RSD_1BITFLAG:
 159                         acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 160                                                                table->
 161                                                                pointer[*target &
 162                                                                        0x01]));
 163                         break;
 164
 165                 case ACPI_RSD_2BITFLAG:
 166                         acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 167                                                                table->
 168                                                                pointer[*target &
 169                                                                        0x03]));
 170                         break;
 171
 172                 case ACPI_RSD_3BITFLAG:
 173                         acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 174                                                                table->
 175                                                                pointer[*target &
 176                                                                        0x07]));
 177                         break;
 178
 179                 case ACPI_RSD_SHORTLIST:
 180                         /*
 181                          * Short byte list (single line output) for DMA and IRQ resources
 182                          * Note: The list length is obtained from the previous table entry
 183                          */
 184                         if (previous_target) {
 185                                 acpi_rs_out_title(name);
 186                                 acpi_rs_dump_short_byte_list(*previous_target,
 187                                                              target);
 188                         }
 189                         break;
 190
 191                 case ACPI_RSD_SHORTLISTX:
 192                         /*
 193                          * Short byte list (single line output) for GPIO vendor data
 194                          * Note: The list length is obtained from the previous table entry
 195                          */
 196                         if (previous_target) {
 197                                 acpi_rs_out_title(name);
 198                                 acpi_rs_dump_short_byte_list(*previous_target,
 199                                                              *
 200                                                              (ACPI_CAST_INDIRECT_PTR
 201                                                               (u8, target)));
 202                         }
 203                         break;
 204
 205                 case ACPI_RSD_LONGLIST:
 206                         /*
 207                          * Long byte list for Vendor resource data
 208                          * Note: The list length is obtained from the previous table entry
 209                          */
 210                         if (previous_target) {
 211                                 acpi_rs_dump_byte_list(ACPI_GET16
 212                                                        (previous_target),
 213                                                        target);
 214                         }
 215                         break;
 216
 217                 case ACPI_RSD_DWORDLIST:
 218                         /*
 219                          * Dword list for Extended Interrupt resources
 220                          * Note: The list length is obtained from the previous table entry
 221                          */
 222                         if (previous_target) {
 223                                 acpi_rs_dump_dword_list(*previous_target,
 224                                                         ACPI_CAST_PTR(u32,
 225                                                                       target));
 226                         }
 227                         break;
 228
 229                 case ACPI_RSD_WORDLIST:
 230                         /*
 231                          * Word list for GPIO Pin Table
 232                          * Note: The list length is obtained from the previous table entry
 233                          */
 234                         if (previous_target) {
 235                                 acpi_rs_dump_word_list(*previous_target,
 236                                                        *(ACPI_CAST_INDIRECT_PTR
 237                                                          (u16, target)));
 238                         }
 239                         break;
 240
 241                 case ACPI_RSD_ADDRESS:
 242                         /*
 243                          * Common flags for all Address resources
 244                          */
 245                         acpi_rs_dump_address_common(ACPI_CAST_PTR
 246                                                     (union acpi_resource_data,
 247                                                      target));
 248                         break;
 249
 250                 case ACPI_RSD_SOURCE:
 251                         /*
 252                          * Optional resource_source for Address resources
 253                          */
 254                         acpi_rs_dump_resource_source(ACPI_CAST_PTR
 255                                                      (struct
 256                                                                    acpi_resource_source,
 257                                                                    target));
 258                         break;
 259
 260                 default:
 261                         acpi_os_printf("**** Invalid table opcode [%X] ****\n",
 262                                        table->opcode);
 263                         return;
 264                 }
 265
 266                 table++;
 267                 count--;
 268         }
 269 }
 270
 271 /*******************************************************************************
 272  *
 273  * FUNCTION:    acpi_rs_dump_resource_source
 274  *
 275  * PARAMETERS:  resource_source     - Pointer to a Resource Source struct
 276  *
 277  * RETURN:      None
 278  *
 279  * DESCRIPTION: Common routine for dumping the optional resource_source and the
 280  *              corresponding resource_source_index.
 281  *
 282  ******************************************************************************/
 283
 284 static void
 285 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
 286 {
 287         ACPI_FUNCTION_ENTRY();
 288
 289         if (resource_source->index == 0xFF) {
 290                 return;
 291         }
 292
 293         acpi_rs_out_integer8("Resource Source Index", resource_source->index);
 294
 295         acpi_rs_out_string("Resource Source",
 296                            resource_source->string_ptr ?
 297                            resource_source->string_ptr : "[Not Specified]");
 298 }
 299
 300 /*******************************************************************************
 301  *
 302  * FUNCTION:    acpi_rs_dump_address_common
 303  *
 304  * PARAMETERS:  resource        - Pointer to an internal resource descriptor
 305  *
 306  * RETURN:      None
 307  *
 308  * DESCRIPTION: Dump the fields that are common to all Address resource
 309  *              descriptors
 310  *
 311  ******************************************************************************/
 312
 313 static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
 314 {
 315         ACPI_FUNCTION_ENTRY();
 316
 317         /* Decode the type-specific flags */
 318
 319         switch (resource->address.resource_type) {
 320         case ACPI_MEMORY_RANGE:
 321
 322                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags);
 323                 break;
 324
 325         case ACPI_IO_RANGE:
 326
 327                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags);
 328                 break;
 329
 330         case ACPI_BUS_NUMBER_RANGE:
 331
 332                 acpi_rs_out_string("Resource Type", "Bus Number Range");
 333                 break;
 334
 335         default:
 336
 337                 acpi_rs_out_integer8("Resource Type",
 338                                      (u8) resource->address.resource_type);
 339                 break;
 340         }
 341
 342         /* Decode the general flags */
 343
 344         acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags);
 345 }
 346
 347 /*******************************************************************************
 348  *
 349  * FUNCTION:    acpi_rs_dump_resource_list
 350  *
 351  * PARAMETERS:  resource_list       - Pointer to a resource descriptor list
 352  *
 353  * RETURN:      None
 354  *
 355  * DESCRIPTION: Dispatches the structure to the correct dump routine.
 356  *
 357  ******************************************************************************/
 358
 359 void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
 360 {
 361         u32 count = 0;
 362         u32 type;
 363
 364         ACPI_FUNCTION_ENTRY();
 365
 366         /* Check if debug output enabled */
 367
 368         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 369                 return;
 370         }
 371
 372         /* Walk list and dump all resource descriptors (END_TAG terminates) */
 373
 374         do {
 375                 acpi_os_printf("\n[%02X] ", count);
 376                 count++;
 377
 378                 /* Validate Type before dispatch */
 379
 380                 type = resource_list->type;
 381                 if (type > ACPI_RESOURCE_TYPE_MAX) {
 382                         acpi_os_printf
 383                             ("Invalid descriptor type (%X) in resource list\n",
 384                              resource_list->type);
 385                         return;
 386                 }
 387
 388                 /* Dump the resource descriptor */
 389
 390                 if (type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
 391                         acpi_rs_dump_descriptor(&resource_list->data,
 392                                                 acpi_gbl_dump_serial_bus_dispatch
 393                                                 [resource_list->data.
 394                                                  common_serial_bus.type]);
 395                 } else {
 396                         acpi_rs_dump_descriptor(&resource_list->data,
 397                                                 acpi_gbl_dump_resource_dispatch
 398                                                 [type]);
 399                 }
 400
 401                 /* Point to the next resource structure */
 402
 403                 resource_list = ACPI_NEXT_RESOURCE(resource_list);
 404
 405                 /* Exit when END_TAG descriptor is reached */
 406
 407         } while (type != ACPI_RESOURCE_TYPE_END_TAG);
 408 }
 409
 410 /*******************************************************************************
 411  *
 412  * FUNCTION:    acpi_rs_dump_irq_list
 413  *
 414  * PARAMETERS:  route_table     - Pointer to the routing table to dump.
 415  *
 416  * RETURN:      None
 417  *
 418  * DESCRIPTION: Print IRQ routing table
 419  *
 420  ******************************************************************************/
 421
 422 void acpi_rs_dump_irq_list(u8 * route_table)
 423 {
 424         struct acpi_pci_routing_table *prt_element;
 425         u8 count;
 426
 427         ACPI_FUNCTION_ENTRY();
 428
 429         /* Check if debug output enabled */
 430
 431         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 432                 return;
 433         }
 434
 435         prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);
 436
 437         /* Dump all table elements, Exit on zero length element */
 438
 439         for (count = 0; prt_element->length; count++) {
 440                 acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
 441                                count);
 442                 acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);
 443
 444                 prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
 445                                            prt_element, prt_element->length);
 446         }
 447 }
 448
 449 /*******************************************************************************
 450  *
 451  * FUNCTION:    acpi_rs_out*
 452  *
 453  * PARAMETERS:  title       - Name of the resource field
 454  *              value       - Value of the resource field
 455  *
 456  * RETURN:      None
 457  *
 458  * DESCRIPTION: Miscellaneous helper functions to consistently format the
 459  *              output of the resource dump routines
 460  *
 461  ******************************************************************************/
 462
 463 static void acpi_rs_out_string(char *title, char *value)
 464 {
 465         acpi_os_printf("%27s : %s", title, value);
 466         if (!*value) {
 467                 acpi_os_printf("[NULL NAMESTRING]");
 468         }
 469         acpi_os_printf("\n");
 470 }
 471
 472 static void acpi_rs_out_integer8(char *title, u8 value)
 473 {
 474         acpi_os_printf("%27s : %2.2X\n", title, value);
 475 }
 476
 477 static void acpi_rs_out_integer16(char *title, u16 value)
 478 {
 479         acpi_os_printf("%27s : %4.4X\n", title, value);
 480 }
 481
 482 static void acpi_rs_out_integer32(char *title, u32 value)
 483 {
 484         acpi_os_printf("%27s : %8.8X\n", title, value);
 485 }
 486
 487 static void acpi_rs_out_integer64(char *title, u64 value)
 488 {
 489         acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
 490 }
 491
 492 static void acpi_rs_out_title(char *title)
 493 {
 494         acpi_os_printf("%27s : ", title);
 495 }
 496
 497 /*******************************************************************************
 498  *
 499  * FUNCTION:    acpi_rs_dump*List
 500  *
 501  * PARAMETERS:  length      - Number of elements in the list
 502  *              data        - Start of the list
 503  *
 504  * RETURN:      None
 505  *
 506  * DESCRIPTION: Miscellaneous functions to dump lists of raw data
 507  *
 508  ******************************************************************************/
 509
 510 static void acpi_rs_dump_byte_list(u16 length, u8 * data)
 511 {
 512         u8 i;
 513
 514         for (i = 0; i < length; i++) {
 515                 acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);
 516         }
 517 }
 518
 519 static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
 520 {
 521         u8 i;
 522
 523         for (i = 0; i < length; i++) {
 524                 acpi_os_printf("%X ", data[i]);
 525         }
 526         acpi_os_printf("\n");
 527 }
 528
 529 static void acpi_rs_dump_dword_list(u8 length, u32 * data)
 530 {
 531         u8 i;
 532
 533         for (i = 0; i < length; i++) {
 534                 acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]);
 535         }
 536 }
 537
 538 static void acpi_rs_dump_word_list(u16 length, u16 *data)
 539 {
 540         u16 i;
 541
 542         for (i = 0; i < length; i++) {
 543                 acpi_os_printf("%25s%2.2X : %4.4X\n", "Word", i, data[i]);
 544         }
 545 }
 546
 547 #endif