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authorBob Moore <robert.moore@intel.com>2009-06-29 01:39:29 -0400
committerLen Brown <len.brown@intel.com>2009-08-27 10:17:15 -0400
commit15b8dd53f5ffaf8e2d9095c423f713423f576c0f (patch)
tree773f09435b14a810372642502352d46c29b6f148 /drivers/acpi/acpica
parent9c61b34cf7078da72cce276ff8cfae5d6e9955bc (diff)
ACPICA: Major update for acpi_get_object_info external interface
Completed a major update for the acpi_get_object_info external interface. Changes include: - Support for variable, unlimited length HID, UID, and CID strings - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) - Call the _SxW power methods on behalf of a device object - Determine if a device is a PCI root bridge - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. These changes will require an update to all callers of this interface. See the ACPICA Programmer Reference for details. Also, update all invocations of acpi_get_object_info interface Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica')
-rw-r--r--drivers/acpi/acpica/Makefile2
-rw-r--r--drivers/acpi/acpica/acconfig.h5
-rw-r--r--drivers/acpi/acpica/acglobal.h3
-rw-r--r--drivers/acpi/acpica/acinterp.h4
-rw-r--r--drivers/acpi/acpica/acutils.h24
-rw-r--r--drivers/acpi/acpica/evrgnini.c45
-rw-r--r--drivers/acpi/acpica/exutils.c53
-rw-r--r--drivers/acpi/acpica/nsdumpdv.c7
-rw-r--r--drivers/acpi/acpica/nsxfeval.c23
-rw-r--r--drivers/acpi/acpica/nsxfname.c237
-rw-r--r--drivers/acpi/acpica/uteval.c375
-rw-r--r--drivers/acpi/acpica/utglobal.c10
-rw-r--r--drivers/acpi/acpica/utids.c382
-rw-r--r--drivers/acpi/acpica/utmisc.c28
14 files changed, 725 insertions, 473 deletions
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 72ac28da14e3..0e7d56185f6d 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -44,4 +44,4 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
44 44
45acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ 45acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
46 utcopy.o utdelete.o utglobal.o utmath.o utobject.o \ 46 utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
47 utstate.o utmutex.o utobject.o utresrc.o utlock.o 47 utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o
diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h
index e6777fb883d2..6c1fb2d9f4d5 100644
--- a/drivers/acpi/acpica/acconfig.h
+++ b/drivers/acpi/acpica/acconfig.h
@@ -203,6 +203,11 @@
203 203
204#define ACPI_SMBUS_BUFFER_SIZE 34 204#define ACPI_SMBUS_BUFFER_SIZE 34
205 205
206/* _sx_d and _sx_w control methods */
207
208#define ACPI_NUM_sx_d_METHODS 4
209#define ACPI_NUM_sx_w_METHODS 5
210
206/****************************************************************************** 211/******************************************************************************
207 * 212 *
208 * ACPI AML Debugger 213 * ACPI AML Debugger
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 0b73b31c1b53..6389f7c1de59 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -265,7 +265,8 @@ ACPI_EXTERN u8 acpi_gbl_osi_data;
265extern u8 acpi_gbl_shutdown; 265extern u8 acpi_gbl_shutdown;
266extern u32 acpi_gbl_startup_flags; 266extern u32 acpi_gbl_startup_flags;
267extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT]; 267extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
268extern const char *acpi_gbl_highest_dstate_names[4]; 268extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
269extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
269extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; 270extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
270extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS]; 271extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
271 272
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index e8db7a3143a5..5db9f2916f7c 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -461,9 +461,9 @@ void acpi_ex_acquire_global_lock(u32 rule);
461 461
462void acpi_ex_release_global_lock(u32 rule); 462void acpi_ex_release_global_lock(u32 rule);
463 463
464void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string); 464void acpi_ex_eisa_id_to_string(char *dest, acpi_integer compressed_id);
465 465
466void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string); 466void acpi_ex_integer_to_string(char *dest, acpi_integer value);
467 467
468/* 468/*
469 * exregion - default op_region handlers 469 * exregion - default op_region handlers
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 897810ba0ccc..b0add85de308 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -324,26 +324,30 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
324acpi_status 324acpi_status
325acpi_ut_evaluate_numeric_object(char *object_name, 325acpi_ut_evaluate_numeric_object(char *object_name,
326 struct acpi_namespace_node *device_node, 326 struct acpi_namespace_node *device_node,
327 acpi_integer * address); 327 acpi_integer *value);
328 328
329acpi_status 329acpi_status
330acpi_ut_execute_HID(struct acpi_namespace_node *device_node, 330acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 *status_flags);
331 struct acpica_device_id *hid);
332 331
333acpi_status 332acpi_status
334acpi_ut_execute_CID(struct acpi_namespace_node *device_node, 333acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
335 struct acpi_compatible_id_list **return_cid_list); 334 const char **method_names,
335 u8 method_count, u8 *out_values);
336 336
337/*
338 * utids - device ID support
339 */
337acpi_status 340acpi_status
338acpi_ut_execute_STA(struct acpi_namespace_node *device_node, 341acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
339 u32 * status_flags); 342 struct acpica_device_id **return_id);
340 343
341acpi_status 344acpi_status
342acpi_ut_execute_UID(struct acpi_namespace_node *device_node, 345acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
343 struct acpica_device_id *uid); 346 struct acpica_device_id **return_id);
344 347
345acpi_status 348acpi_status
346acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest); 349acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
350 struct acpica_device_id_list **return_cid_list);
347 351
348/* 352/*
349 * utlock - reader/writer locks 353 * utlock - reader/writer locks
@@ -445,6 +449,8 @@ acpi_ut_short_divide(acpi_integer in_dividend,
445 */ 449 */
446const char *acpi_ut_validate_exception(acpi_status status); 450const char *acpi_ut_validate_exception(acpi_status status);
447 451
452u8 acpi_ut_is_pci_root_bridge(char *id);
453
448u8 acpi_ut_is_aml_table(struct acpi_table_header *table); 454u8 acpi_ut_is_aml_table(struct acpi_table_header *table);
449 455
450acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id); 456acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id);
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index 284a7becbe96..cf29c4953028 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -50,8 +50,6 @@
50ACPI_MODULE_NAME("evrgnini") 50ACPI_MODULE_NAME("evrgnini")
51 51
52/* Local prototypes */ 52/* Local prototypes */
53static u8 acpi_ev_match_pci_root_bridge(char *id);
54
55static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node); 53static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
56 54
57/******************************************************************************* 55/*******************************************************************************
@@ -332,37 +330,6 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
332 330
333/******************************************************************************* 331/*******************************************************************************
334 * 332 *
335 * FUNCTION: acpi_ev_match_pci_root_bridge
336 *
337 * PARAMETERS: Id - The HID/CID in string format
338 *
339 * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
340 *
341 * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
342 *
343 ******************************************************************************/
344
345static u8 acpi_ev_match_pci_root_bridge(char *id)
346{
347
348 /*
349 * Check if this is a PCI root.
350 * ACPI 3.0+: check for a PCI Express root also.
351 */
352 if (!(ACPI_STRNCMP(id,
353 PCI_ROOT_HID_STRING,
354 sizeof(PCI_ROOT_HID_STRING))) ||
355 !(ACPI_STRNCMP(id,
356 PCI_EXPRESS_ROOT_HID_STRING,
357 sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) {
358 return (TRUE);
359 }
360
361 return (FALSE);
362}
363
364/*******************************************************************************
365 *
366 * FUNCTION: acpi_ev_is_pci_root_bridge 333 * FUNCTION: acpi_ev_is_pci_root_bridge
367 * 334 *
368 * PARAMETERS: Node - Device node being examined 335 * PARAMETERS: Node - Device node being examined
@@ -377,9 +344,10 @@ static u8 acpi_ev_match_pci_root_bridge(char *id)
377static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node) 344static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
378{ 345{
379 acpi_status status; 346 acpi_status status;
380 struct acpica_device_id hid; 347 struct acpica_device_id *hid;
381 struct acpi_compatible_id_list *cid; 348 struct acpica_device_id_list *cid;
382 u32 i; 349 u32 i;
350 u8 match;
383 351
384 /* Get the _HID and check for a PCI Root Bridge */ 352 /* Get the _HID and check for a PCI Root Bridge */
385 353
@@ -388,7 +356,10 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
388 return (FALSE); 356 return (FALSE);
389 } 357 }
390 358
391 if (acpi_ev_match_pci_root_bridge(hid.value)) { 359 match = acpi_ut_is_pci_root_bridge(hid->string);
360 ACPI_FREE(hid);
361
362 if (match) {
392 return (TRUE); 363 return (TRUE);
393 } 364 }
394 365
@@ -402,7 +373,7 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
402 /* Check all _CIDs in the returned list */ 373 /* Check all _CIDs in the returned list */
403 374
404 for (i = 0; i < cid->count; i++) { 375 for (i = 0; i < cid->count; i++) {
405 if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) { 376 if (acpi_ut_is_pci_root_bridge(cid->ids[i].string)) {
406 ACPI_FREE(cid); 377 ACPI_FREE(cid);
407 return (TRUE); 378 return (TRUE);
408 } 379 }
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index 87730e944132..7d41f99f7052 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -358,50 +358,67 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base)
358 * 358 *
359 * FUNCTION: acpi_ex_eisa_id_to_string 359 * FUNCTION: acpi_ex_eisa_id_to_string
360 * 360 *
361 * PARAMETERS: numeric_id - EISA ID to be converted 361 * PARAMETERS: compressed_id - EISAID to be converted
362 * out_string - Where to put the converted string (8 bytes) 362 * out_string - Where to put the converted string (8 bytes)
363 * 363 *
364 * RETURN: None 364 * RETURN: None
365 * 365 *
366 * DESCRIPTION: Convert a numeric EISA ID to string representation 366 * DESCRIPTION: Convert a numeric EISAID to string representation. Return
367 * buffer must be large enough to hold the string. The string
368 * returned is always exactly of length ACPI_EISAID_STRING_SIZE
369 * (includes null terminator). The EISAID is always 32 bits.
367 * 370 *
368 ******************************************************************************/ 371 ******************************************************************************/
369 372
370void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string) 373void acpi_ex_eisa_id_to_string(char *out_string, acpi_integer compressed_id)
371{ 374{
372 u32 eisa_id; 375 u32 swapped_id;
373 376
374 ACPI_FUNCTION_ENTRY(); 377 ACPI_FUNCTION_ENTRY();
375 378
379 /* The EISAID should be a 32-bit integer */
380
381 if (compressed_id > ACPI_UINT32_MAX) {
382 ACPI_WARNING((AE_INFO,
383 "Expected EISAID is larger than 32 bits: 0x%8.8X%8.8X, truncating",
384 ACPI_FORMAT_UINT64(compressed_id)));
385 }
386
376 /* Swap ID to big-endian to get contiguous bits */ 387 /* Swap ID to big-endian to get contiguous bits */
377 388
378 eisa_id = acpi_ut_dword_byte_swap(numeric_id); 389 swapped_id = acpi_ut_dword_byte_swap((u32)compressed_id);
379 390
380 out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f)); 391 /* First 3 bytes are uppercase letters. Next 4 bytes are hexadecimal */
381 out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f)); 392
382 out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f)); 393 out_string[0] =
383 out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12); 394 (char)(0x40 + (((unsigned long)swapped_id >> 26) & 0x1F));
384 out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8); 395 out_string[1] = (char)(0x40 + ((swapped_id >> 21) & 0x1F));
385 out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4); 396 out_string[2] = (char)(0x40 + ((swapped_id >> 16) & 0x1F));
386 out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0); 397 out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 12);
398 out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 8);
399 out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 4);
400 out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 0);
387 out_string[7] = 0; 401 out_string[7] = 0;
388} 402}
389 403
390/******************************************************************************* 404/*******************************************************************************
391 * 405 *
392 * FUNCTION: acpi_ex_unsigned_integer_to_string 406 * FUNCTION: acpi_ex_integer_to_string
393 * 407 *
394 * PARAMETERS: Value - Value to be converted 408 * PARAMETERS: out_string - Where to put the converted string. At least
395 * out_string - Where to put the converted string (8 bytes) 409 * 21 bytes are needed to hold the largest
410 * possible 64-bit integer.
411 * Value - Value to be converted
396 * 412 *
397 * RETURN: None, string 413 * RETURN: None, string
398 * 414 *
399 * DESCRIPTION: Convert a number to string representation. Assumes string 415 * DESCRIPTION: Convert a 64-bit integer to decimal string representation.
400 * buffer is large enough to hold the string. 416 * Assumes string buffer is large enough to hold the string. The
417 * largest string is (ACPI_MAX64_DECIMAL_DIGITS + 1).
401 * 418 *
402 ******************************************************************************/ 419 ******************************************************************************/
403 420
404void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string) 421void acpi_ex_integer_to_string(char *out_string, acpi_integer value)
405{ 422{
406 u32 count; 423 u32 count;
407 u32 digits_needed; 424 u32 digits_needed;
diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c
index 41994fe7fbb8..0fe87f1aef16 100644
--- a/drivers/acpi/acpica/nsdumpdv.c
+++ b/drivers/acpi/acpica/nsdumpdv.c
@@ -70,7 +70,6 @@ static acpi_status
70acpi_ns_dump_one_device(acpi_handle obj_handle, 70acpi_ns_dump_one_device(acpi_handle obj_handle,
71 u32 level, void *context, void **return_value) 71 u32 level, void *context, void **return_value)
72{ 72{
73 struct acpi_buffer buffer;
74 struct acpi_device_info *info; 73 struct acpi_device_info *info;
75 acpi_status status; 74 acpi_status status;
76 u32 i; 75 u32 i;
@@ -80,17 +79,15 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
80 status = 79 status =
81 acpi_ns_dump_one_object(obj_handle, level, context, return_value); 80 acpi_ns_dump_one_object(obj_handle, level, context, return_value);
82 81
83 buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; 82 status = acpi_get_object_info(obj_handle, &info);
84 status = acpi_get_object_info(obj_handle, &buffer);
85 if (ACPI_SUCCESS(status)) { 83 if (ACPI_SUCCESS(status)) {
86 info = buffer.pointer;
87 for (i = 0; i < level; i++) { 84 for (i = 0; i < level; i++) {
88 ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " ")); 85 ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " "));
89 } 86 }
90 87
91 ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, 88 ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES,
92 " HID: %s, ADR: %8.8X%8.8X, Status: %X\n", 89 " HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
93 info->hardware_id.value, 90 info->hardware_id.string,
94 ACPI_FORMAT_UINT64(info->address), 91 ACPI_FORMAT_UINT64(info->address),
95 info->current_status)); 92 info->current_status));
96 ACPI_FREE(info); 93 ACPI_FREE(info);
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index daf4ad37896d..4929dbdbc8f0 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -535,10 +535,11 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
535 acpi_status status; 535 acpi_status status;
536 struct acpi_namespace_node *node; 536 struct acpi_namespace_node *node;
537 u32 flags; 537 u32 flags;
538 struct acpica_device_id hid; 538 struct acpica_device_id *hid;
539 struct acpi_compatible_id_list *cid; 539 struct acpica_device_id_list *cid;
540 u32 i; 540 u32 i;
541 int found; 541 u8 found;
542 int no_match;
542 543
543 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 544 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
544 if (ACPI_FAILURE(status)) { 545 if (ACPI_FAILURE(status)) {
@@ -582,10 +583,14 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
582 return (AE_CTRL_DEPTH); 583 return (AE_CTRL_DEPTH);
583 } 584 }
584 585
585 if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) { 586 no_match = ACPI_STRCMP(hid->string, info->hid);
586 587 ACPI_FREE(hid);
587 /* Get the list of Compatible IDs */
588 588
589 if (no_match) {
590 /*
591 * HID does not match, attempt match within the
592 * list of Compatible IDs (CIDs)
593 */
589 status = acpi_ut_execute_CID(node, &cid); 594 status = acpi_ut_execute_CID(node, &cid);
590 if (status == AE_NOT_FOUND) { 595 if (status == AE_NOT_FOUND) {
591 return (AE_OK); 596 return (AE_OK);
@@ -597,10 +602,8 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
597 602
598 found = 0; 603 found = 0;
599 for (i = 0; i < cid->count; i++) { 604 for (i = 0; i < cid->count; i++) {
600 if (ACPI_STRNCMP(cid->id[i].value, info->hid, 605 if (ACPI_STRCMP(cid->ids[i].string, info->hid)
601 sizeof(struct 606 == 0) {
602 acpi_compatible_id)) ==
603 0) {
604 found = 1; 607 found = 1;
605 break; 608 break;
606 } 609 }
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index f23593d6add4..ddc84af6336e 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -51,6 +51,11 @@
51#define _COMPONENT ACPI_NAMESPACE 51#define _COMPONENT ACPI_NAMESPACE
52ACPI_MODULE_NAME("nsxfname") 52ACPI_MODULE_NAME("nsxfname")
53 53
54/* Local prototypes */
55static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
56 struct acpica_device_id *source,
57 char *string_area);
58
54/****************************************************************************** 59/******************************************************************************
55 * 60 *
56 * FUNCTION: acpi_get_handle 61 * FUNCTION: acpi_get_handle
@@ -68,6 +73,7 @@ ACPI_MODULE_NAME("nsxfname")
68 * namespace handle. 73 * namespace handle.
69 * 74 *
70 ******************************************************************************/ 75 ******************************************************************************/
76
71acpi_status 77acpi_status
72acpi_get_handle(acpi_handle parent, 78acpi_get_handle(acpi_handle parent,
73 acpi_string pathname, acpi_handle * ret_handle) 79 acpi_string pathname, acpi_handle * ret_handle)
@@ -210,10 +216,38 @@ ACPI_EXPORT_SYMBOL(acpi_get_name)
210 216
211/****************************************************************************** 217/******************************************************************************
212 * 218 *
219 * FUNCTION: acpi_ns_copy_device_id
220 *
221 * PARAMETERS: Dest - Pointer to the destination DEVICE_ID
222 * Source - Pointer to the source DEVICE_ID
223 * string_area - Pointer to where to copy the dest string
224 *
225 * RETURN: Pointer to the next string area
226 *
227 * DESCRIPTION: Copy a single DEVICE_ID, including the string data.
228 *
229 ******************************************************************************/
230static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
231 struct acpica_device_id *source,
232 char *string_area)
233{
234 /* Create the destination DEVICE_ID */
235
236 dest->string = string_area;
237 dest->length = source->length;
238
239 /* Copy actual string and return a pointer to the next string area */
240
241 ACPI_MEMCPY(string_area, source->string, source->length);
242 return (string_area + source->length);
243}
244
245/******************************************************************************
246 *
213 * FUNCTION: acpi_get_object_info 247 * FUNCTION: acpi_get_object_info
214 * 248 *
215 * PARAMETERS: Handle - Object Handle 249 * PARAMETERS: Handle - Object Handle
216 * Buffer - Where the info is returned 250 * return_buffer - Where the info is returned
217 * 251 *
218 * RETURN: Status 252 * RETURN: Status
219 * 253 *
@@ -221,33 +255,37 @@ ACPI_EXPORT_SYMBOL(acpi_get_name)
221 * namespace node and possibly by running several standard 255 * namespace node and possibly by running several standard
222 * control methods (Such as in the case of a device.) 256 * control methods (Such as in the case of a device.)
223 * 257 *
258 * For Device and Processor objects, run the Device _HID, _UID, _CID, _STA,
259 * _ADR, _sx_w, and _sx_d methods.
260 *
261 * Note: Allocates the return buffer, must be freed by the caller.
262 *
224 ******************************************************************************/ 263 ******************************************************************************/
264
225acpi_status 265acpi_status
226acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) 266acpi_get_object_info(acpi_handle handle,
267 struct acpi_device_info **return_buffer)
227{ 268{
228 acpi_status status;
229 struct acpi_namespace_node *node; 269 struct acpi_namespace_node *node;
230 struct acpi_device_info *info; 270 struct acpi_device_info *info;
231 struct acpi_device_info *return_info; 271 struct acpica_device_id_list *cid_list = NULL;
232 struct acpi_compatible_id_list *cid_list = NULL; 272 struct acpica_device_id *hid = NULL;
233 acpi_size size; 273 struct acpica_device_id *uid = NULL;
274 char *next_id_string;
275 acpi_object_type type;
276 acpi_name name;
277 u8 param_count = 0;
278 u8 valid = 0;
279 u32 info_size;
280 u32 i;
281 acpi_status status;
234 282
235 /* Parameter validation */ 283 /* Parameter validation */
236 284
237 if (!handle || !buffer) { 285 if (!handle || !return_buffer) {
238 return (AE_BAD_PARAMETER); 286 return (AE_BAD_PARAMETER);
239 } 287 }
240 288
241 status = acpi_ut_validate_buffer(buffer);
242 if (ACPI_FAILURE(status)) {
243 return (status);
244 }
245
246 info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
247 if (!info) {
248 return (AE_NO_MEMORY);
249 }
250
251 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 289 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
252 if (ACPI_FAILURE(status)) { 290 if (ACPI_FAILURE(status)) {
253 goto cleanup; 291 goto cleanup;
@@ -256,66 +294,91 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
256 node = acpi_ns_map_handle_to_node(handle); 294 node = acpi_ns_map_handle_to_node(handle);
257 if (!node) { 295 if (!node) {
258 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 296 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
259 status = AE_BAD_PARAMETER; 297 return (AE_BAD_PARAMETER);
260 goto cleanup;
261 } 298 }
262 299
263 /* Init return structure */ 300 /* Get the namespace node data while the namespace is locked */
264
265 size = sizeof(struct acpi_device_info);
266 301
267 info->type = node->type; 302 info_size = sizeof(struct acpi_device_info);
268 info->name = node->name.integer; 303 type = node->type;
269 info->valid = 0; 304 name = node->name.integer;
270 305
271 if (node->type == ACPI_TYPE_METHOD) { 306 if (node->type == ACPI_TYPE_METHOD) {
272 info->param_count = node->object->method.param_count; 307 param_count = node->object->method.param_count;
273 } 308 }
274 309
275 status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 310 status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
276 if (ACPI_FAILURE(status)) { 311 if (ACPI_FAILURE(status)) {
277 goto cleanup; 312 return (status);
278 } 313 }
279 314
280 /* If not a device, we are all done */ 315 if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
281
282 if (info->type == ACPI_TYPE_DEVICE) {
283 /* 316 /*
284 * Get extra info for ACPI Devices objects only: 317 * Get extra info for ACPI Device/Processor objects only:
285 * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods. 318 * Run the Device _HID, _UID, and _CID methods.
286 * 319 *
287 * Note: none of these methods are required, so they may or may 320 * Note: none of these methods are required, so they may or may
288 * not be present for this device. The Info->Valid bitfield is used 321 * not be present for this device. The Info->Valid bitfield is used
289 * to indicate which methods were found and ran successfully. 322 * to indicate which methods were found and run successfully.
290 */ 323 */
291 324
292 /* Execute the Device._HID method */ 325 /* Execute the Device._HID method */
293 326
294 status = acpi_ut_execute_HID(node, &info->hardware_id); 327 status = acpi_ut_execute_HID(node, &hid);
295 if (ACPI_SUCCESS(status)) { 328 if (ACPI_SUCCESS(status)) {
296 info->valid |= ACPI_VALID_HID; 329 info_size += hid->length;
330 valid |= ACPI_VALID_HID;
297 } 331 }
298 332
299 /* Execute the Device._UID method */ 333 /* Execute the Device._UID method */
300 334
301 status = acpi_ut_execute_UID(node, &info->unique_id); 335 status = acpi_ut_execute_UID(node, &uid);
302 if (ACPI_SUCCESS(status)) { 336 if (ACPI_SUCCESS(status)) {
303 info->valid |= ACPI_VALID_UID; 337 info_size += uid->length;
338 valid |= ACPI_VALID_UID;
304 } 339 }
305 340
306 /* Execute the Device._CID method */ 341 /* Execute the Device._CID method */
307 342
308 status = acpi_ut_execute_CID(node, &cid_list); 343 status = acpi_ut_execute_CID(node, &cid_list);
309 if (ACPI_SUCCESS(status)) { 344 if (ACPI_SUCCESS(status)) {
310 size += cid_list->size; 345
311 info->valid |= ACPI_VALID_CID; 346 /* Add size of CID strings and CID pointer array */
347
348 info_size +=
349 (cid_list->list_size -
350 sizeof(struct acpica_device_id_list));
351 valid |= ACPI_VALID_CID;
312 } 352 }
353 }
354
355 /*
356 * Now that we have the variable-length data, we can allocate the
357 * return buffer
358 */
359 info = ACPI_ALLOCATE_ZEROED(info_size);
360 if (!info) {
361 status = AE_NO_MEMORY;
362 goto cleanup;
363 }
364
365 /* Get the fixed-length data */
366
367 if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
368 /*
369 * Get extra info for ACPI Device/Processor objects only:
370 * Run the _STA, _ADR and, sx_w, and _sx_d methods.
371 *
372 * Note: none of these methods are required, so they may or may
373 * not be present for this device. The Info->Valid bitfield is used
374 * to indicate which methods were found and run successfully.
375 */
313 376
314 /* Execute the Device._STA method */ 377 /* Execute the Device._STA method */
315 378
316 status = acpi_ut_execute_STA(node, &info->current_status); 379 status = acpi_ut_execute_STA(node, &info->current_status);
317 if (ACPI_SUCCESS(status)) { 380 if (ACPI_SUCCESS(status)) {
318 info->valid |= ACPI_VALID_STA; 381 valid |= ACPI_VALID_STA;
319 } 382 }
320 383
321 /* Execute the Device._ADR method */ 384 /* Execute the Device._ADR method */
@@ -323,36 +386,100 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
323 status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node, 386 status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
324 &info->address); 387 &info->address);
325 if (ACPI_SUCCESS(status)) { 388 if (ACPI_SUCCESS(status)) {
326 info->valid |= ACPI_VALID_ADR; 389 valid |= ACPI_VALID_ADR;
390 }
391
392 /* Execute the Device._sx_w methods */
393
394 status = acpi_ut_execute_power_methods(node,
395 acpi_gbl_lowest_dstate_names,
396 ACPI_NUM_sx_w_METHODS,
397 info->lowest_dstates);
398 if (ACPI_SUCCESS(status)) {
399 valid |= ACPI_VALID_SXWS;
327 } 400 }
328 401
329 /* Execute the Device._sx_d methods */ 402 /* Execute the Device._sx_d methods */
330 403
331 status = acpi_ut_execute_sxds(node, info->highest_dstates); 404 status = acpi_ut_execute_power_methods(node,
405 acpi_gbl_highest_dstate_names,
406 ACPI_NUM_sx_d_METHODS,
407 info->highest_dstates);
332 if (ACPI_SUCCESS(status)) { 408 if (ACPI_SUCCESS(status)) {
333 info->valid |= ACPI_VALID_SXDS; 409 valid |= ACPI_VALID_SXDS;
334 } 410 }
335 } 411 }
336 412
337 /* Validate/Allocate/Clear caller buffer */ 413 /*
414 * Create a pointer to the string area of the return buffer.
415 * Point to the end of the base struct acpi_device_info structure.
416 */
417 next_id_string = ACPI_CAST_PTR(char, info->compatible_id_list.ids);
418 if (cid_list) {
338 419
339 status = acpi_ut_initialize_buffer(buffer, size); 420 /* Point past the CID DEVICE_ID array */
340 if (ACPI_FAILURE(status)) { 421
341 goto cleanup; 422 next_id_string +=
423 ((acpi_size) cid_list->count *
424 sizeof(struct acpica_device_id));
342 } 425 }
343 426
344 /* Populate the return buffer */ 427 /*
428 * Copy the HID, UID, and CIDs to the return buffer. The variable-length
429 * strings are copied to the reserved area at the end of the buffer.
430 *
431 * For HID and CID, check if the ID is a PCI Root Bridge.
432 */
433 if (hid) {
434 next_id_string = acpi_ns_copy_device_id(&info->hardware_id,
435 hid, next_id_string);
436
437 if (acpi_ut_is_pci_root_bridge(hid->string)) {
438 info->flags |= ACPI_PCI_ROOT_BRIDGE;
439 }
440 }
345 441
346 return_info = buffer->pointer; 442 if (uid) {
347 ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info)); 443 next_id_string = acpi_ns_copy_device_id(&info->unique_id,
444 uid, next_id_string);
445 }
348 446
349 if (cid_list) { 447 if (cid_list) {
350 ACPI_MEMCPY(&return_info->compatibility_id, cid_list, 448 info->compatible_id_list.count = cid_list->count;
351 cid_list->size); 449 info->compatible_id_list.list_size = cid_list->list_size;
450
451 /* Copy each CID */
452
453 for (i = 0; i < cid_list->count; i++) {
454 next_id_string =
455 acpi_ns_copy_device_id(&info->compatible_id_list.
456 ids[i], &cid_list->ids[i],
457 next_id_string);
458
459 if (acpi_ut_is_pci_root_bridge(cid_list->ids[i].string)) {
460 info->flags |= ACPI_PCI_ROOT_BRIDGE;
461 }
462 }
352 } 463 }
353 464
465 /* Copy the fixed-length data */
466
467 info->info_size = info_size;
468 info->type = type;
469 info->name = name;
470 info->param_count = param_count;
471 info->valid = valid;
472
473 *return_buffer = info;
474 status = AE_OK;
475
354 cleanup: 476 cleanup:
355 ACPI_FREE(info); 477 if (hid) {
478 ACPI_FREE(hid);
479 }
480 if (uid) {
481 ACPI_FREE(uid);
482 }
356 if (cid_list) { 483 if (cid_list) {
357 ACPI_FREE(cid_list); 484 ACPI_FREE(cid_list);
358 } 485 }
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index 006b16c26017..5503307b8bb7 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -44,19 +44,10 @@
44#include <acpi/acpi.h> 44#include <acpi/acpi.h>
45#include "accommon.h" 45#include "accommon.h"
46#include "acnamesp.h" 46#include "acnamesp.h"
47#include "acinterp.h"
48 47
49#define _COMPONENT ACPI_UTILITIES 48#define _COMPONENT ACPI_UTILITIES
50ACPI_MODULE_NAME("uteval") 49ACPI_MODULE_NAME("uteval")
51 50
52/* Local prototypes */
53static void
54acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length);
55
56static acpi_status
57acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
58 struct acpi_compatible_id *one_cid);
59
60/* 51/*
61 * Strings supported by the _OSI predefined (internal) method. 52 * Strings supported by the _OSI predefined (internal) method.
62 * 53 *
@@ -213,7 +204,7 @@ acpi_status acpi_osi_invalidate(char *interface)
213 * RETURN: Status 204 * RETURN: Status
214 * 205 *
215 * DESCRIPTION: Evaluates a namespace object and verifies the type of the 206 * DESCRIPTION: Evaluates a namespace object and verifies the type of the
216 * return object. Common code that simplifies accessing objects 207 * return object. Common code that simplifies accessing objects
217 * that have required return objects of fixed types. 208 * that have required return objects of fixed types.
218 * 209 *
219 * NOTE: Internal function, no parameter validation 210 * NOTE: Internal function, no parameter validation
@@ -298,7 +289,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
298 289
299 if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) { 290 if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) {
300 /* 291 /*
301 * We received a return object, but one was not expected. This can 292 * We received a return object, but one was not expected. This can
302 * happen frequently if the "implicit return" feature is enabled. 293 * happen frequently if the "implicit return" feature is enabled.
303 * Just delete the return object and return AE_OK. 294 * Just delete the return object and return AE_OK.
304 */ 295 */
@@ -340,12 +331,12 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
340 * 331 *
341 * PARAMETERS: object_name - Object name to be evaluated 332 * PARAMETERS: object_name - Object name to be evaluated
342 * device_node - Node for the device 333 * device_node - Node for the device
343 * Address - Where the value is returned 334 * Value - Where the value is returned
344 * 335 *
345 * RETURN: Status 336 * RETURN: Status
346 * 337 *
347 * DESCRIPTION: Evaluates a numeric namespace object for a selected device 338 * DESCRIPTION: Evaluates a numeric namespace object for a selected device
348 * and stores result in *Address. 339 * and stores result in *Value.
349 * 340 *
350 * NOTE: Internal function, no parameter validation 341 * NOTE: Internal function, no parameter validation
351 * 342 *
@@ -354,7 +345,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
354acpi_status 345acpi_status
355acpi_ut_evaluate_numeric_object(char *object_name, 346acpi_ut_evaluate_numeric_object(char *object_name,
356 struct acpi_namespace_node *device_node, 347 struct acpi_namespace_node *device_node,
357 acpi_integer * address) 348 acpi_integer *value)
358{ 349{
359 union acpi_operand_object *obj_desc; 350 union acpi_operand_object *obj_desc;
360 acpi_status status; 351 acpi_status status;
@@ -369,295 +360,7 @@ acpi_ut_evaluate_numeric_object(char *object_name,
369 360
370 /* Get the returned Integer */ 361 /* Get the returned Integer */
371 362
372 *address = obj_desc->integer.value; 363 *value = obj_desc->integer.value;
373
374 /* On exit, we must delete the return object */
375
376 acpi_ut_remove_reference(obj_desc);
377 return_ACPI_STATUS(status);
378}
379
380/*******************************************************************************
381 *
382 * FUNCTION: acpi_ut_copy_id_string
383 *
384 * PARAMETERS: Destination - Where to copy the string
385 * Source - Source string
386 * max_length - Length of the destination buffer
387 *
388 * RETURN: None
389 *
390 * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
391 * Performs removal of a leading asterisk if present -- workaround
392 * for a known issue on a bunch of machines.
393 *
394 ******************************************************************************/
395
396static void
397acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length)
398{
399
400 /*
401 * Workaround for ID strings that have a leading asterisk. This construct
402 * is not allowed by the ACPI specification (ID strings must be
403 * alphanumeric), but enough existing machines have this embedded in their
404 * ID strings that the following code is useful.
405 */
406 if (*source == '*') {
407 source++;
408 }
409
410 /* Do the actual copy */
411
412 ACPI_STRNCPY(destination, source, max_length);
413}
414
415/*******************************************************************************
416 *
417 * FUNCTION: acpi_ut_execute_HID
418 *
419 * PARAMETERS: device_node - Node for the device
420 * Hid - Where the HID is returned
421 *
422 * RETURN: Status
423 *
424 * DESCRIPTION: Executes the _HID control method that returns the hardware
425 * ID of the device.
426 *
427 * NOTE: Internal function, no parameter validation
428 *
429 ******************************************************************************/
430
431acpi_status
432acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
433 struct acpica_device_id *hid)
434{
435 union acpi_operand_object *obj_desc;
436 acpi_status status;
437
438 ACPI_FUNCTION_TRACE(ut_execute_HID);
439
440 status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
441 ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
442 &obj_desc);
443 if (ACPI_FAILURE(status)) {
444 return_ACPI_STATUS(status);
445 }
446
447 if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
448
449 /* Convert the Numeric HID to string */
450
451 acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
452 hid->value);
453 } else {
454 /* Copy the String HID from the returned object */
455
456 acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer,
457 sizeof(hid->value));
458 }
459
460 /* On exit, we must delete the return object */
461
462 acpi_ut_remove_reference(obj_desc);
463 return_ACPI_STATUS(status);
464}
465
466/*******************************************************************************
467 *
468 * FUNCTION: acpi_ut_translate_one_cid
469 *
470 * PARAMETERS: obj_desc - _CID object, must be integer or string
471 * one_cid - Where the CID string is returned
472 *
473 * RETURN: Status
474 *
475 * DESCRIPTION: Return a numeric or string _CID value as a string.
476 * (Compatible ID)
477 *
478 * NOTE: Assumes a maximum _CID string length of
479 * ACPI_MAX_CID_LENGTH.
480 *
481 ******************************************************************************/
482
483static acpi_status
484acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
485 struct acpi_compatible_id *one_cid)
486{
487
488 switch (obj_desc->common.type) {
489 case ACPI_TYPE_INTEGER:
490
491 /* Convert the Numeric CID to string */
492
493 acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
494 one_cid->value);
495 return (AE_OK);
496
497 case ACPI_TYPE_STRING:
498
499 if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) {
500 return (AE_AML_STRING_LIMIT);
501 }
502
503 /* Copy the String CID from the returned object */
504
505 acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer,
506 ACPI_MAX_CID_LENGTH);
507 return (AE_OK);
508
509 default:
510
511 return (AE_TYPE);
512 }
513}
514
515/*******************************************************************************
516 *
517 * FUNCTION: acpi_ut_execute_CID
518 *
519 * PARAMETERS: device_node - Node for the device
520 * return_cid_list - Where the CID list is returned
521 *
522 * RETURN: Status
523 *
524 * DESCRIPTION: Executes the _CID control method that returns one or more
525 * compatible hardware IDs for the device.
526 *
527 * NOTE: Internal function, no parameter validation
528 *
529 ******************************************************************************/
530
531acpi_status
532acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
533 struct acpi_compatible_id_list ** return_cid_list)
534{
535 union acpi_operand_object *obj_desc;
536 acpi_status status;
537 u32 count;
538 u32 size;
539 struct acpi_compatible_id_list *cid_list;
540 u32 i;
541
542 ACPI_FUNCTION_TRACE(ut_execute_CID);
543
544 /* Evaluate the _CID method for this device */
545
546 status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
547 ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
548 | ACPI_BTYPE_PACKAGE, &obj_desc);
549 if (ACPI_FAILURE(status)) {
550 return_ACPI_STATUS(status);
551 }
552
553 /* Get the number of _CIDs returned */
554
555 count = 1;
556 if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
557 count = obj_desc->package.count;
558 }
559
560 /* Allocate a worst-case buffer for the _CIDs */
561
562 size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
563 sizeof(struct acpi_compatible_id_list));
564
565 cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
566 if (!cid_list) {
567 return_ACPI_STATUS(AE_NO_MEMORY);
568 }
569
570 /* Init CID list */
571
572 cid_list->count = count;
573 cid_list->size = size;
574
575 /*
576 * A _CID can return either a single compatible ID or a package of
577 * compatible IDs. Each compatible ID can be one of the following:
578 * 1) Integer (32 bit compressed EISA ID) or
579 * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
580 */
581
582 /* The _CID object can be either a single CID or a package (list) of CIDs */
583
584 if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
585
586 /* Translate each package element */
587
588 for (i = 0; i < count; i++) {
589 status =
590 acpi_ut_translate_one_cid(obj_desc->package.
591 elements[i],
592 &cid_list->id[i]);
593 if (ACPI_FAILURE(status)) {
594 break;
595 }
596 }
597 } else {
598 /* Only one CID, translate to a string */
599
600 status = acpi_ut_translate_one_cid(obj_desc, cid_list->id);
601 }
602
603 /* Cleanup on error */
604
605 if (ACPI_FAILURE(status)) {
606 ACPI_FREE(cid_list);
607 } else {
608 *return_cid_list = cid_list;
609 }
610
611 /* On exit, we must delete the _CID return object */
612
613 acpi_ut_remove_reference(obj_desc);
614 return_ACPI_STATUS(status);
615}
616
617/*******************************************************************************
618 *
619 * FUNCTION: acpi_ut_execute_UID
620 *
621 * PARAMETERS: device_node - Node for the device
622 * Uid - Where the UID is returned
623 *
624 * RETURN: Status
625 *
626 * DESCRIPTION: Executes the _UID control method that returns the hardware
627 * ID of the device.
628 *
629 * NOTE: Internal function, no parameter validation
630 *
631 ******************************************************************************/
632
633acpi_status
634acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
635 struct acpica_device_id *uid)
636{
637 union acpi_operand_object *obj_desc;
638 acpi_status status;
639
640 ACPI_FUNCTION_TRACE(ut_execute_UID);
641
642 status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
643 ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
644 &obj_desc);
645 if (ACPI_FAILURE(status)) {
646 return_ACPI_STATUS(status);
647 }
648
649 if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
650
651 /* Convert the Numeric UID to string */
652
653 acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
654 uid->value);
655 } else {
656 /* Copy the String UID from the returned object */
657
658 acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer,
659 sizeof(uid->value));
660 }
661 364
662 /* On exit, we must delete the return object */ 365 /* On exit, we must delete the return object */
663 366
@@ -716,60 +419,64 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
716 419
717/******************************************************************************* 420/*******************************************************************************
718 * 421 *
719 * FUNCTION: acpi_ut_execute_Sxds 422 * FUNCTION: acpi_ut_execute_power_methods
720 * 423 *
721 * PARAMETERS: device_node - Node for the device 424 * PARAMETERS: device_node - Node for the device
722 * Flags - Where the status flags are returned 425 * method_names - Array of power method names
426 * method_count - Number of methods to execute
427 * out_values - Where the power method values are returned
723 * 428 *
724 * RETURN: Status 429 * RETURN: Status, out_values
725 * 430 *
726 * DESCRIPTION: Executes _STA for selected device and stores results in 431 * DESCRIPTION: Executes the specified power methods for the device and returns
727 * *Flags. 432 * the result(s).
728 * 433 *
729 * NOTE: Internal function, no parameter validation 434 * NOTE: Internal function, no parameter validation
730 * 435 *
731 ******************************************************************************/ 436******************************************************************************/
732 437
733acpi_status 438acpi_status
734acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest) 439acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
440 const char **method_names,
441 u8 method_count, u8 *out_values)
735{ 442{
736 union acpi_operand_object *obj_desc; 443 union acpi_operand_object *obj_desc;
737 acpi_status status; 444 acpi_status status;
445 acpi_status final_status = AE_NOT_FOUND;
738 u32 i; 446 u32 i;
739 447
740 ACPI_FUNCTION_TRACE(ut_execute_sxds); 448 ACPI_FUNCTION_TRACE(ut_execute_power_methods);
741 449
742 for (i = 0; i < 4; i++) { 450 for (i = 0; i < method_count; i++) {
743 highest[i] = 0xFF; 451 /*
452 * Execute the power method (_sx_d or _sx_w). The only allowable
453 * return type is an Integer.
454 */
744 status = acpi_ut_evaluate_object(device_node, 455 status = acpi_ut_evaluate_object(device_node,
745 ACPI_CAST_PTR(char, 456 ACPI_CAST_PTR(char,
746 acpi_gbl_highest_dstate_names 457 method_names[i]),
747 [i]),
748 ACPI_BTYPE_INTEGER, &obj_desc); 458 ACPI_BTYPE_INTEGER, &obj_desc);
749 if (ACPI_FAILURE(status)) { 459 if (ACPI_SUCCESS(status)) {
750 if (status != AE_NOT_FOUND) { 460 out_values[i] = (u8)obj_desc->integer.value;
751 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
752 "%s on Device %4.4s, %s\n",
753 ACPI_CAST_PTR(char,
754 acpi_gbl_highest_dstate_names
755 [i]),
756 acpi_ut_get_node_name
757 (device_node),
758 acpi_format_exception
759 (status)));
760
761 return_ACPI_STATUS(status);
762 }
763 } else {
764 /* Extract the Dstate value */
765
766 highest[i] = (u8) obj_desc->integer.value;
767 461
768 /* Delete the return object */ 462 /* Delete the return object */
769 463
770 acpi_ut_remove_reference(obj_desc); 464 acpi_ut_remove_reference(obj_desc);
465 final_status = AE_OK; /* At least one value is valid */
466 continue;
771 } 467 }
468
469 out_values[i] = ACPI_UINT8_MAX;
470 if (status == AE_NOT_FOUND) {
471 continue; /* Ignore if not found */
472 }
473
474 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
475 "Failed %s on Device %4.4s, %s\n",
476 ACPI_CAST_PTR(char, method_names[i]),
477 acpi_ut_get_node_name(device_node),
478 acpi_format_exception(status)));
772 } 479 }
773 480
774 return_ACPI_STATUS(AE_OK); 481 return_ACPI_STATUS(final_status);
775} 482}
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 59e46f257c02..ed7a33c67fbe 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -90,7 +90,15 @@ const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
90 "\\_S5_" 90 "\\_S5_"
91}; 91};
92 92
93const char *acpi_gbl_highest_dstate_names[4] = { 93const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
94 "_S0W",
95 "_S1W",
96 "_S2W",
97 "_S3W",
98 "_S4W"
99};
100
101const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
94 "_S1D", 102 "_S1D",
95 "_S2D", 103 "_S2D",
96 "_S3D", 104 "_S3D",
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
new file mode 100644
index 000000000000..52eaae404554
--- /dev/null
+++ b/drivers/acpi/acpica/utids.c
@@ -0,0 +1,382 @@
1/******************************************************************************
2 *
3 * Module Name: utids - support for device IDs - HID, UID, CID
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2009, 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_UTILITIES
49ACPI_MODULE_NAME("utids")
50
51/* Local prototypes */
52static void acpi_ut_copy_id_string(char *destination, char *source);
53
54/*******************************************************************************
55 *
56 * FUNCTION: acpi_ut_copy_id_string
57 *
58 * PARAMETERS: Destination - Where to copy the string
59 * Source - Source string
60 *
61 * RETURN: None
62 *
63 * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
64 * Performs removal of a leading asterisk if present -- workaround
65 * for a known issue on a bunch of machines.
66 *
67 ******************************************************************************/
68
69static void acpi_ut_copy_id_string(char *destination, char *source)
70{
71
72 /*
73 * Workaround for ID strings that have a leading asterisk. This construct
74 * is not allowed by the ACPI specification (ID strings must be
75 * alphanumeric), but enough existing machines have this embedded in their
76 * ID strings that the following code is useful.
77 */
78 if (*source == '*') {
79 source++;
80 }
81
82 /* Do the actual copy */
83
84 ACPI_STRCPY(destination, source);
85}
86
87/*******************************************************************************
88 *
89 * FUNCTION: acpi_ut_execute_HID
90 *
91 * PARAMETERS: device_node - Node for the device
92 * return_id - Where the string HID is returned
93 *
94 * RETURN: Status
95 *
96 * DESCRIPTION: Executes the _HID control method that returns the hardware
97 * ID of the device. The HID is either an 32-bit encoded EISAID
98 * Integer or a String. A string is always returned. An EISAID
99 * is converted to a string.
100 *
101 * NOTE: Internal function, no parameter validation
102 *
103 ******************************************************************************/
104
105acpi_status
106acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
107 struct acpica_device_id **return_id)
108{
109 union acpi_operand_object *obj_desc;
110 struct acpica_device_id *hid;
111 u32 length;
112 acpi_status status;
113
114 ACPI_FUNCTION_TRACE(ut_execute_HID);
115
116 status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
117 ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
118 &obj_desc);
119 if (ACPI_FAILURE(status)) {
120 return_ACPI_STATUS(status);
121 }
122
123 /* Get the size of the String to be returned, includes null terminator */
124
125 if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
126 length = ACPI_EISAID_STRING_SIZE;
127 } else {
128 length = obj_desc->string.length + 1;
129 }
130
131 /* Allocate a buffer for the HID */
132
133 hid =
134 ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
135 (acpi_size) length);
136 if (!hid) {
137 status = AE_NO_MEMORY;
138 goto cleanup;
139 }
140
141 /* Area for the string starts after DEVICE_ID struct */
142
143 hid->string = ACPI_ADD_PTR(char, hid, sizeof(struct acpica_device_id));
144
145 /* Convert EISAID to a string or simply copy existing string */
146
147 if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
148 acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value);
149 } else {
150 acpi_ut_copy_id_string(hid->string, obj_desc->string.pointer);
151 }
152
153 hid->length = length;
154 *return_id = hid;
155
156cleanup:
157
158 /* On exit, we must delete the return object */
159
160 acpi_ut_remove_reference(obj_desc);
161 return_ACPI_STATUS(status);
162}
163
164/*******************************************************************************
165 *
166 * FUNCTION: acpi_ut_execute_UID
167 *
168 * PARAMETERS: device_node - Node for the device
169 * return_id - Where the string UID is returned
170 *
171 * RETURN: Status
172 *
173 * DESCRIPTION: Executes the _UID control method that returns the unique
174 * ID of the device. The UID is either a 64-bit Integer (NOT an
175 * EISAID) or a string. Always returns a string. A 64-bit integer
176 * is converted to a decimal string.
177 *
178 * NOTE: Internal function, no parameter validation
179 *
180 ******************************************************************************/
181
182acpi_status
183acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
184 struct acpica_device_id **return_id)
185{
186 union acpi_operand_object *obj_desc;
187 struct acpica_device_id *uid;
188 u32 length;
189 acpi_status status;
190
191 ACPI_FUNCTION_TRACE(ut_execute_UID);
192
193 status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
194 ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
195 &obj_desc);
196 if (ACPI_FAILURE(status)) {
197 return_ACPI_STATUS(status);
198 }
199
200 /* Get the size of the String to be returned, includes null terminator */
201
202 if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
203 length = ACPI_MAX64_DECIMAL_DIGITS + 1;
204 } else {
205 length = obj_desc->string.length + 1;
206 }
207
208 /* Allocate a buffer for the UID */
209
210 uid =
211 ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
212 (acpi_size) length);
213 if (!uid) {
214 status = AE_NO_MEMORY;
215 goto cleanup;
216 }
217
218 /* Area for the string starts after DEVICE_ID struct */
219
220 uid->string = ACPI_ADD_PTR(char, uid, sizeof(struct acpica_device_id));
221
222 /* Convert an Integer to string, or just copy an existing string */
223
224 if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
225 acpi_ex_integer_to_string(uid->string, obj_desc->integer.value);
226 } else {
227 acpi_ut_copy_id_string(uid->string, obj_desc->string.pointer);
228 }
229
230 uid->length = length;
231 *return_id = uid;
232
233cleanup:
234
235 /* On exit, we must delete the return object */
236
237 acpi_ut_remove_reference(obj_desc);
238 return_ACPI_STATUS(status);
239}
240
241/*******************************************************************************
242 *
243 * FUNCTION: acpi_ut_execute_CID
244 *
245 * PARAMETERS: device_node - Node for the device
246 * return_cid_list - Where the CID list is returned
247 *
248 * RETURN: Status, list of CID strings
249 *
250 * DESCRIPTION: Executes the _CID control method that returns one or more
251 * compatible hardware IDs for the device.
252 *
253 * NOTE: Internal function, no parameter validation
254 *
255 * A _CID method can return either a single compatible ID or a package of
256 * compatible IDs. Each compatible ID can be one of the following:
257 * 1) Integer (32 bit compressed EISA ID) or
258 * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
259 *
260 * The Integer CIDs are converted to string format by this function.
261 *
262 ******************************************************************************/
263
264acpi_status
265acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
266 struct acpica_device_id_list **return_cid_list)
267{
268 union acpi_operand_object **cid_objects;
269 union acpi_operand_object *obj_desc;
270 struct acpica_device_id_list *cid_list;
271 char *next_id_string;
272 u32 string_area_size;
273 u32 length;
274 u32 cid_list_size;
275 acpi_status status;
276 u32 count;
277 u32 i;
278
279 ACPI_FUNCTION_TRACE(ut_execute_CID);
280
281 /* Evaluate the _CID method for this device */
282
283 status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
284 ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
285 | ACPI_BTYPE_PACKAGE, &obj_desc);
286 if (ACPI_FAILURE(status)) {
287 return_ACPI_STATUS(status);
288 }
289
290 /*
291 * Get the count and size of the returned _CIDs. _CID can return either
292 * a Package of Integers/Strings or a single Integer or String.
293 * Note: This section also validates that all CID elements are of the
294 * correct type (Integer or String).
295 */
296 if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
297 count = obj_desc->package.count;
298 cid_objects = obj_desc->package.elements;
299 } else { /* Single Integer or String CID */
300
301 count = 1;
302 cid_objects = &obj_desc;
303 }
304
305 string_area_size = 0;
306 for (i = 0; i < count; i++) {
307
308 /* String lengths include null terminator */
309
310 switch (cid_objects[i]->common.type) {
311 case ACPI_TYPE_INTEGER:
312 string_area_size += ACPI_EISAID_STRING_SIZE;
313 break;
314
315 case ACPI_TYPE_STRING:
316 string_area_size += cid_objects[i]->string.length + 1;
317 break;
318
319 default:
320 status = AE_TYPE;
321 goto cleanup;
322 }
323 }
324
325 /*
326 * Now that we know the length of the CIDs, allocate return buffer:
327 * 1) Size of the base structure +
328 * 2) Size of the CID DEVICE_ID array +
329 * 3) Size of the actual CID strings
330 */
331 cid_list_size = sizeof(struct acpica_device_id_list) +
332 ((count - 1) * sizeof(struct acpica_device_id)) + string_area_size;
333
334 cid_list = ACPI_ALLOCATE_ZEROED(cid_list_size);
335 if (!cid_list) {
336 status = AE_NO_MEMORY;
337 goto cleanup;
338 }
339
340 /* Area for CID strings starts after the CID DEVICE_ID array */
341
342 next_id_string = ACPI_CAST_PTR(char, cid_list->ids) +
343 ((acpi_size) count * sizeof(struct acpica_device_id));
344
345 /* Copy/convert the CIDs to the return buffer */
346
347 for (i = 0; i < count; i++) {
348 if (cid_objects[i]->common.type == ACPI_TYPE_INTEGER) {
349
350 /* Convert the Integer (EISAID) CID to a string */
351
352 acpi_ex_eisa_id_to_string(next_id_string,
353 cid_objects[i]->integer.
354 value);
355 length = ACPI_EISAID_STRING_SIZE;
356 } else { /* ACPI_TYPE_STRING */
357
358 /* Copy the String CID from the returned object */
359
360 acpi_ut_copy_id_string(next_id_string,
361 cid_objects[i]->string.pointer);
362 length = cid_objects[i]->string.length + 1;
363 }
364
365 cid_list->ids[i].string = next_id_string;
366 cid_list->ids[i].length = length;
367 next_id_string += length;
368 }
369
370 /* Finish the CID list */
371
372 cid_list->count = count;
373 cid_list->list_size = cid_list_size;
374 *return_cid_list = cid_list;
375
376cleanup:
377
378 /* On exit, we must delete the _CID return object */
379
380 acpi_ut_remove_reference(obj_desc);
381 return_ACPI_STATUS(status);
382}
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index fbe782348b0b..9cd65334ca75 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -120,6 +120,34 @@ const char *acpi_ut_validate_exception(acpi_status status)
120 120
121/******************************************************************************* 121/*******************************************************************************
122 * 122 *
123 * FUNCTION: acpi_ut_is_pci_root_bridge
124 *
125 * PARAMETERS: Id - The HID/CID in string format
126 *
127 * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
128 *
129 * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
130 *
131 ******************************************************************************/
132
133u8 acpi_ut_is_pci_root_bridge(char *id)
134{
135
136 /*
137 * Check if this is a PCI root bridge.
138 * ACPI 3.0+: check for a PCI Express root also.
139 */
140 if (!(ACPI_STRCMP(id,
141 PCI_ROOT_HID_STRING)) ||
142 !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) {
143 return (TRUE);
144 }
145
146 return (FALSE);
147}
148
149/*******************************************************************************
150 *
123 * FUNCTION: acpi_ut_is_aml_table 151 * FUNCTION: acpi_ut_is_aml_table
124 * 152 *
125 * PARAMETERS: Table - An ACPI table 153 * PARAMETERS: Table - An ACPI table
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 13:21:46 -0500