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ACPICA: Major update for acpi_get_object_info external interface

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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>
This commit is contained in:
Bob Moore 2009-06-29 13:39:29 +08:00 committed by Len Brown
parent 9c61b34cf7
commit 15b8dd53f5
28 changed files with 906 additions and 635 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

7
arch/ia64/hp/common/sba_iommu.c
View file

@ -2026,24 +2026,21 @@ acpi_sba_ioc_add(struct acpi_device *device)
struct ioc *ioc;
acpi_status status;
u64 hpa, length;
struct acpi_buffer buffer;
struct acpi_device_info *dev_info;
status = hp_acpi_csr_space(device->handle, &hpa, &length);
if (ACPI_FAILURE(status))
return 1;
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
status = acpi_get_object_info(device->handle, &buffer);
status = acpi_get_object_info(device->handle, &dev_info);
if (ACPI_FAILURE(status))
return 1;
dev_info = buffer.pointer;
/*
* For HWP0001, only SBA appears in ACPI namespace. It encloses the PCI
* root bridges, and its CSR space includes the IOC function.
*/
if (strncmp("HWP0001", dev_info->hardware_id.value, 7) == 0) {
if (strncmp("HWP0001", dev_info->hardware_id.string, 7) == 0) {
hpa += ZX1_IOC_OFFSET;
/* zx1 based systems default to kernel page size iommu pages */
if (!iovp_shift)

11
drivers/acpi/acpi_memhotplug.c
View file

@ -481,26 +481,23 @@ static acpi_status is_memory_device(acpi_handle handle)
{
char *hardware_id;
acpi_status status;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device_info *info;
status = acpi_get_object_info(handle, &buffer);
status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status))
return status;
info = buffer.pointer;
if (!(info->valid & ACPI_VALID_HID)) {
kfree(buffer.pointer);
kfree(info);
return AE_ERROR;
}
hardware_id = info->hardware_id.value;
hardware_id = info->hardware_id.string;
if ((hardware_id == NULL) ||
(strcmp(hardware_id, ACPI_MEMORY_DEVICE_HID)))
status = AE_ERROR;
kfree(buffer.pointer);
kfree(info);
return status;
}

2
drivers/acpi/acpica/Makefile
View file

@ -44,4 +44,4 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
utstate.o utmutex.o utobject.o utresrc.o utlock.o
utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o

5
drivers/acpi/acpica/acconfig.h
View file

@ -203,6 +203,11 @@
#define ACPI_SMBUS_BUFFER_SIZE 34
/* _sx_d and _sx_w control methods */
#define ACPI_NUM_sx_d_METHODS 4
#define ACPI_NUM_sx_w_METHODS 5
/******************************************************************************
*
* ACPI AML Debugger

3
drivers/acpi/acpica/acglobal.h
View file

@ -265,7 +265,8 @@ ACPI_EXTERN u8 acpi_gbl_osi_data;
extern u8 acpi_gbl_shutdown;
extern u32 acpi_gbl_startup_flags;
extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
extern const char *acpi_gbl_highest_dstate_names[4];
extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];

4
drivers/acpi/acpica/acinterp.h
View file

@ -461,9 +461,9 @@ void acpi_ex_acquire_global_lock(u32 rule);
void acpi_ex_release_global_lock(u32 rule);
void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string);
void acpi_ex_eisa_id_to_string(char *dest, acpi_integer compressed_id);
void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string);
void acpi_ex_integer_to_string(char *dest, acpi_integer value);
/*
* exregion - default op_region handlers

30
drivers/acpi/acpica/acutils.h
View file

@ -324,26 +324,30 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
acpi_status
acpi_ut_evaluate_numeric_object(char *object_name,
struct acpi_namespace_node *device_node,
acpi_integer * address);
acpi_integer *value);
acpi_status
acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 *status_flags);
acpi_status
acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
const char **method_names,
u8 method_count, u8 *out_values);
/*
* utids - device ID support
*/
acpi_status
acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
struct acpica_device_id *hid);
acpi_status
acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
struct acpi_compatible_id_list **return_cid_list);
acpi_status
acpi_ut_execute_STA(struct acpi_namespace_node *device_node,
u32 * status_flags);
struct acpica_device_id **return_id);
acpi_status
acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
struct acpica_device_id *uid);
struct acpica_device_id **return_id);
acpi_status
acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest);
acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
struct acpica_device_id_list **return_cid_list);
/*
* utlock - reader/writer locks
@ -445,6 +449,8 @@ acpi_ut_short_divide(acpi_integer in_dividend,
*/
const char *acpi_ut_validate_exception(acpi_status status);
u8 acpi_ut_is_pci_root_bridge(char *id);
u8 acpi_ut_is_aml_table(struct acpi_table_header *table);
acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id);

45
drivers/acpi/acpica/evrgnini.c
View file

@ -50,8 +50,6 @@
ACPI_MODULE_NAME("evrgnini")
/* Local prototypes */
static u8 acpi_ev_match_pci_root_bridge(char *id);
static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
/*******************************************************************************
@ -330,37 +328,6 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_match_pci_root_bridge
*
* PARAMETERS: Id - The HID/CID in string format
*
* RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
*
* DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
*
******************************************************************************/
static u8 acpi_ev_match_pci_root_bridge(char *id)
{
/*
* Check if this is a PCI root.
* ACPI 3.0+: check for a PCI Express root also.
*/
if (!(ACPI_STRNCMP(id,
PCI_ROOT_HID_STRING,
sizeof(PCI_ROOT_HID_STRING))) ||
!(ACPI_STRNCMP(id,
PCI_EXPRESS_ROOT_HID_STRING,
sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) {
return (TRUE);
}
return (FALSE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ev_is_pci_root_bridge
@ -377,9 +344,10 @@ static u8 acpi_ev_match_pci_root_bridge(char *id)
static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
{
acpi_status status;
struct acpica_device_id hid;
struct acpi_compatible_id_list *cid;
struct acpica_device_id *hid;
struct acpica_device_id_list *cid;
u32 i;
u8 match;
/* Get the _HID and check for a PCI Root Bridge */
@ -388,7 +356,10 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
return (FALSE);
}
if (acpi_ev_match_pci_root_bridge(hid.value)) {
match = acpi_ut_is_pci_root_bridge(hid->string);
ACPI_FREE(hid);
if (match) {
return (TRUE);
}
@ -402,7 +373,7 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
/* Check all _CIDs in the returned list */
for (i = 0; i < cid->count; i++) {
if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) {
if (acpi_ut_is_pci_root_bridge(cid->ids[i].string)) {
ACPI_FREE(cid);
return (TRUE);
}

53
drivers/acpi/acpica/exutils.c
View file

@ -358,50 +358,67 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base)
*
* FUNCTION: acpi_ex_eisa_id_to_string
*
* PARAMETERS: numeric_id - EISA ID to be converted
* PARAMETERS: compressed_id - EISAID to be converted
* out_string - Where to put the converted string (8 bytes)
*
* RETURN: None
*
* DESCRIPTION: Convert a numeric EISA ID to string representation
* DESCRIPTION: Convert a numeric EISAID to string representation. Return
* buffer must be large enough to hold the string. The string
* returned is always exactly of length ACPI_EISAID_STRING_SIZE
* (includes null terminator). The EISAID is always 32 bits.
*
******************************************************************************/
void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string)
void acpi_ex_eisa_id_to_string(char *out_string, acpi_integer compressed_id)
{
u32 eisa_id;
u32 swapped_id;
ACPI_FUNCTION_ENTRY();
/* The EISAID should be a 32-bit integer */
if (compressed_id > ACPI_UINT32_MAX) {
ACPI_WARNING((AE_INFO,
"Expected EISAID is larger than 32 bits: 0x%8.8X%8.8X, truncating",
ACPI_FORMAT_UINT64(compressed_id)));
}
/* Swap ID to big-endian to get contiguous bits */
eisa_id = acpi_ut_dword_byte_swap(numeric_id);
swapped_id = acpi_ut_dword_byte_swap((u32)compressed_id);
out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f));
out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f));
out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f));
out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12);
out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8);
out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4);
out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0);
/* First 3 bytes are uppercase letters. Next 4 bytes are hexadecimal */
out_string[0] =
(char)(0x40 + (((unsigned long)swapped_id >> 26) & 0x1F));
out_string[1] = (char)(0x40 + ((swapped_id >> 21) & 0x1F));
out_string[2] = (char)(0x40 + ((swapped_id >> 16) & 0x1F));
out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 12);
out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 8);
out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 4);
out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 0);
out_string[7] = 0;
}
/*******************************************************************************
*
* FUNCTION: acpi_ex_unsigned_integer_to_string
* FUNCTION: acpi_ex_integer_to_string
*
* PARAMETERS: Value - Value to be converted
* out_string - Where to put the converted string (8 bytes)
* PARAMETERS: out_string - Where to put the converted string. At least
* 21 bytes are needed to hold the largest
* possible 64-bit integer.
* Value - Value to be converted
*
* RETURN: None, string
*
* DESCRIPTION: Convert a number to string representation. Assumes string
* buffer is large enough to hold the string.
* DESCRIPTION: Convert a 64-bit integer to decimal string representation.
* Assumes string buffer is large enough to hold the string. The
* largest string is (ACPI_MAX64_DECIMAL_DIGITS + 1).
*
******************************************************************************/
void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string)
void acpi_ex_integer_to_string(char *out_string, acpi_integer value)
{
u32 count;
u32 digits_needed;

7
drivers/acpi/acpica/nsdumpdv.c
View file

@ -70,7 +70,6 @@ static acpi_status
acpi_ns_dump_one_device(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
struct acpi_buffer buffer;
struct acpi_device_info *info;
acpi_status status;
u32 i;
@ -80,17 +79,15 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
status =
acpi_ns_dump_one_object(obj_handle, level, context, return_value);
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
status = acpi_get_object_info(obj_handle, &buffer);
status = acpi_get_object_info(obj_handle, &info);
if (ACPI_SUCCESS(status)) {
info = buffer.pointer;
for (i = 0; i < level; i++) {
ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " "));
}
ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES,
" HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
info->hardware_id.value,
info->hardware_id.string,
ACPI_FORMAT_UINT64(info->address),
info->current_status));
ACPI_FREE(info);

23
drivers/acpi/acpica/nsxfeval.c
View file

@ -535,10 +535,11 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
acpi_status status;
struct acpi_namespace_node *node;
u32 flags;
struct acpica_device_id hid;
struct acpi_compatible_id_list *cid;
struct acpica_device_id *hid;
struct acpica_device_id_list *cid;
u32 i;
int found;
u8 found;
int no_match;
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
@ -582,10 +583,14 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
return (AE_CTRL_DEPTH);
}
if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) {
/* Get the list of Compatible IDs */
no_match = ACPI_STRCMP(hid->string, info->hid);
ACPI_FREE(hid);
if (no_match) {
/*
* HID does not match, attempt match within the
* list of Compatible IDs (CIDs)
*/
status = acpi_ut_execute_CID(node, &cid);
if (status == AE_NOT_FOUND) {
return (AE_OK);
@ -597,10 +602,8 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
found = 0;
for (i = 0; i < cid->count; i++) {
if (ACPI_STRNCMP(cid->id[i].value, info->hid,
sizeof(struct
acpi_compatible_id)) ==
0) {
if (ACPI_STRCMP(cid->ids[i].string, info->hid)
== 0) {
found = 1;
break;
}

233
drivers/acpi/acpica/nsxfname.c
View file

@ -51,6 +51,11 @@
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsxfname")
/* Local prototypes */
static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
struct acpica_device_id *source,
char *string_area);
/******************************************************************************
*
* FUNCTION: acpi_get_handle
@ -68,6 +73,7 @@ ACPI_MODULE_NAME("nsxfname")
* namespace handle.
*
******************************************************************************/
acpi_status
acpi_get_handle(acpi_handle parent,
acpi_string pathname, acpi_handle * ret_handle)
@ -208,12 +214,40 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
ACPI_EXPORT_SYMBOL(acpi_get_name)
/******************************************************************************
*
* FUNCTION: acpi_ns_copy_device_id
*
* PARAMETERS: Dest - Pointer to the destination DEVICE_ID
* Source - Pointer to the source DEVICE_ID
* string_area - Pointer to where to copy the dest string
*
* RETURN: Pointer to the next string area
*
* DESCRIPTION: Copy a single DEVICE_ID, including the string data.
*
******************************************************************************/
static char *acpi_ns_copy_device_id(struct acpica_device_id *dest,
struct acpica_device_id *source,
char *string_area)
{
/* Create the destination DEVICE_ID */
dest->string = string_area;
dest->length = source->length;
/* Copy actual string and return a pointer to the next string area */
ACPI_MEMCPY(string_area, source->string, source->length);
return (string_area + source->length);
}
/******************************************************************************
*
* FUNCTION: acpi_get_object_info
*
* PARAMETERS: Handle - Object Handle
* Buffer - Where the info is returned
* return_buffer - Where the info is returned
*
* RETURN: Status
*
@ -221,33 +255,37 @@ ACPI_EXPORT_SYMBOL(acpi_get_name)
* namespace node and possibly by running several standard
* control methods (Such as in the case of a device.)
*
* For Device and Processor objects, run the Device _HID, _UID, _CID, _STA,
* _ADR, _sx_w, and _sx_d methods.
*
* Note: Allocates the return buffer, must be freed by the caller.
*
******************************************************************************/
acpi_status
acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
acpi_get_object_info(acpi_handle handle,
struct acpi_device_info **return_buffer)
{
acpi_status status;
struct acpi_namespace_node *node;
struct acpi_device_info *info;
struct acpi_device_info *return_info;
struct acpi_compatible_id_list *cid_list = NULL;
acpi_size size;
struct acpica_device_id_list *cid_list = NULL;
struct acpica_device_id *hid = NULL;
struct acpica_device_id *uid = NULL;
char *next_id_string;
acpi_object_type type;
acpi_name name;
u8 param_count = 0;
u8 valid = 0;
u32 info_size;
u32 i;
acpi_status status;
/* Parameter validation */
if (!handle || !buffer) {
if (!handle || !return_buffer) {
return (AE_BAD_PARAMETER);
}
status = acpi_ut_validate_buffer(buffer);
if (ACPI_FAILURE(status)) {
return (status);
}
info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
if (!info) {
return (AE_NO_MEMORY);
}
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
goto cleanup;
@ -256,66 +294,91 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
node = acpi_ns_map_handle_to_node(handle);
if (!node) {
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
status = AE_BAD_PARAMETER;
goto cleanup;
return (AE_BAD_PARAMETER);
}
/* Init return structure */
/* Get the namespace node data while the namespace is locked */
size = sizeof(struct acpi_device_info);
info->type = node->type;
info->name = node->name.integer;
info->valid = 0;
info_size = sizeof(struct acpi_device_info);
type = node->type;
name = node->name.integer;
if (node->type == ACPI_TYPE_METHOD) {
info->param_count = node->object->method.param_count;
param_count = node->object->method.param_count;
}
status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
goto cleanup;
return (status);
}
/* If not a device, we are all done */
if (info->type == ACPI_TYPE_DEVICE) {
if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
/*
* Get extra info for ACPI Devices objects only:
* Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
* Get extra info for ACPI Device/Processor objects only:
* Run the Device _HID, _UID, and _CID methods.
*
* Note: none of these methods are required, so they may or may
* not be present for this device. The Info->Valid bitfield is used
* to indicate which methods were found and ran successfully.
* to indicate which methods were found and run successfully.
*/
/* Execute the Device._HID method */
status = acpi_ut_execute_HID(node, &info->hardware_id);
status = acpi_ut_execute_HID(node, &hid);
if (ACPI_SUCCESS(status)) {
info->valid |= ACPI_VALID_HID;
info_size += hid->length;
valid |= ACPI_VALID_HID;
}
/* Execute the Device._UID method */
status = acpi_ut_execute_UID(node, &info->unique_id);
status = acpi_ut_execute_UID(node, &uid);
if (ACPI_SUCCESS(status)) {
info->valid |= ACPI_VALID_UID;
info_size += uid->length;
valid |= ACPI_VALID_UID;
}
/* Execute the Device._CID method */
status = acpi_ut_execute_CID(node, &cid_list);
if (ACPI_SUCCESS(status)) {
size += cid_list->size;
info->valid |= ACPI_VALID_CID;
/* Add size of CID strings and CID pointer array */
info_size +=
(cid_list->list_size -
sizeof(struct acpica_device_id_list));
valid |= ACPI_VALID_CID;
}
}
/*
* Now that we have the variable-length data, we can allocate the
* return buffer
*/
info = ACPI_ALLOCATE_ZEROED(info_size);
if (!info) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Get the fixed-length data */
if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) {
/*
* Get extra info for ACPI Device/Processor objects only:
* Run the _STA, _ADR and, sx_w, and _sx_d methods.
*
* Note: none of these methods are required, so they may or may
* not be present for this device. The Info->Valid bitfield is used
* to indicate which methods were found and run successfully.
*/
/* Execute the Device._STA method */
status = acpi_ut_execute_STA(node, &info->current_status);
if (ACPI_SUCCESS(status)) {
info->valid |= ACPI_VALID_STA;
valid |= ACPI_VALID_STA;
}
/* Execute the Device._ADR method */
@ -323,36 +386,100 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
&info->address);
if (ACPI_SUCCESS(status)) {
info->valid |= ACPI_VALID_ADR;
valid |= ACPI_VALID_ADR;
}
/* Execute the Device._sx_w methods */
status = acpi_ut_execute_power_methods(node,
acpi_gbl_lowest_dstate_names,
ACPI_NUM_sx_w_METHODS,
info->lowest_dstates);
if (ACPI_SUCCESS(status)) {
valid |= ACPI_VALID_SXWS;
}
/* Execute the Device._sx_d methods */
status = acpi_ut_execute_sxds(node, info->highest_dstates);
status = acpi_ut_execute_power_methods(node,
acpi_gbl_highest_dstate_names,
ACPI_NUM_sx_d_METHODS,
info->highest_dstates);
if (ACPI_SUCCESS(status)) {
info->valid |= ACPI_VALID_SXDS;
valid |= ACPI_VALID_SXDS;
}
}
/* Validate/Allocate/Clear caller buffer */
/*
* Create a pointer to the string area of the return buffer.
* Point to the end of the base struct acpi_device_info structure.
*/
next_id_string = ACPI_CAST_PTR(char, info->compatible_id_list.ids);
if (cid_list) {
status = acpi_ut_initialize_buffer(buffer, size);
if (ACPI_FAILURE(status)) {
goto cleanup;
/* Point past the CID DEVICE_ID array */
next_id_string +=
((acpi_size) cid_list->count *
sizeof(struct acpica_device_id));
}
/* Populate the return buffer */
/*
* Copy the HID, UID, and CIDs to the return buffer. The variable-length
* strings are copied to the reserved area at the end of the buffer.
*
* For HID and CID, check if the ID is a PCI Root Bridge.
*/
if (hid) {
next_id_string = acpi_ns_copy_device_id(&info->hardware_id,
hid, next_id_string);
return_info = buffer->pointer;
ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
if (acpi_ut_is_pci_root_bridge(hid->string)) {
info->flags |= ACPI_PCI_ROOT_BRIDGE;
}
}
if (uid) {
next_id_string = acpi_ns_copy_device_id(&info->unique_id,
uid, next_id_string);
}
if (cid_list) {
ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
cid_list->size);
info->compatible_id_list.count = cid_list->count;
info->compatible_id_list.list_size = cid_list->list_size;
/* Copy each CID */
for (i = 0; i < cid_list->count; i++) {
next_id_string =
acpi_ns_copy_device_id(&info->compatible_id_list.
ids[i], &cid_list->ids[i],
next_id_string);
if (acpi_ut_is_pci_root_bridge(cid_list->ids[i].string)) {
info->flags |= ACPI_PCI_ROOT_BRIDGE;
}
}
}
/* Copy the fixed-length data */
info->info_size = info_size;
info->type = type;
info->name = name;
info->param_count = param_count;
info->valid = valid;
*return_buffer = info;
status = AE_OK;
cleanup:
ACPI_FREE(info);
if (hid) {
ACPI_FREE(hid);
}
if (uid) {
ACPI_FREE(uid);
}
if (cid_list) {
ACPI_FREE(cid_list);
}

373
drivers/acpi/acpica/uteval.c
View file

@ -44,19 +44,10 @@
#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
#include "acinterp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("uteval")
/* Local prototypes */
static void
acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length);
static acpi_status
acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
struct acpi_compatible_id *one_cid);
/*
* Strings supported by the _OSI predefined (internal) method.
*
@ -340,12 +331,12 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
*
* PARAMETERS: object_name - Object name to be evaluated
* device_node - Node for the device
* Address - Where the value is returned
* Value - Where the value is returned
*
* RETURN: Status
*
* DESCRIPTION: Evaluates a numeric namespace object for a selected device
* and stores result in *Address.
* and stores result in *Value.
*
* NOTE: Internal function, no parameter validation
*
@ -354,7 +345,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
acpi_status
acpi_ut_evaluate_numeric_object(char *object_name,
struct acpi_namespace_node *device_node,
acpi_integer * address)
acpi_integer *value)
{
union acpi_operand_object *obj_desc;
acpi_status status;
@ -369,295 +360,7 @@ acpi_ut_evaluate_numeric_object(char *object_name,
/* Get the returned Integer */
*address = obj_desc->integer.value;
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_copy_id_string
*
* PARAMETERS: Destination - Where to copy the string
* Source - Source string
* max_length - Length of the destination buffer
*
* RETURN: None
*
* DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
* Performs removal of a leading asterisk if present -- workaround
* for a known issue on a bunch of machines.
*
******************************************************************************/
static void
acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length)
{
/*
* Workaround for ID strings that have a leading asterisk. This construct
* is not allowed by the ACPI specification (ID strings must be
* alphanumeric), but enough existing machines have this embedded in their
* ID strings that the following code is useful.
*/
if (*source == '*') {
source++;
}
/* Do the actual copy */
ACPI_STRNCPY(destination, source, max_length);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_HID
*
* PARAMETERS: device_node - Node for the device
* Hid - Where the HID is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _HID control method that returns the hardware
* ID of the device.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
struct acpica_device_id *hid)
{
union acpi_operand_object *obj_desc;
acpi_status status;
ACPI_FUNCTION_TRACE(ut_execute_HID);
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
&obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
/* Convert the Numeric HID to string */
acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
hid->value);
} else {
/* Copy the String HID from the returned object */
acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer,
sizeof(hid->value));
}
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_translate_one_cid
*
* PARAMETERS: obj_desc - _CID object, must be integer or string
* one_cid - Where the CID string is returned
*
* RETURN: Status
*
* DESCRIPTION: Return a numeric or string _CID value as a string.
* (Compatible ID)
*
* NOTE: Assumes a maximum _CID string length of
* ACPI_MAX_CID_LENGTH.
*
******************************************************************************/
static acpi_status
acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
struct acpi_compatible_id *one_cid)
{
switch (obj_desc->common.type) {
case ACPI_TYPE_INTEGER:
/* Convert the Numeric CID to string */
acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
one_cid->value);
return (AE_OK);
case ACPI_TYPE_STRING:
if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) {
return (AE_AML_STRING_LIMIT);
}
/* Copy the String CID from the returned object */
acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer,
ACPI_MAX_CID_LENGTH);
return (AE_OK);
default:
return (AE_TYPE);
}
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_CID
*
* PARAMETERS: device_node - Node for the device
* return_cid_list - Where the CID list is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _CID control method that returns one or more
* compatible hardware IDs for the device.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
struct acpi_compatible_id_list ** return_cid_list)
{
union acpi_operand_object *obj_desc;
acpi_status status;
u32 count;
u32 size;
struct acpi_compatible_id_list *cid_list;
u32 i;
ACPI_FUNCTION_TRACE(ut_execute_CID);
/* Evaluate the _CID method for this device */
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
| ACPI_BTYPE_PACKAGE, &obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Get the number of _CIDs returned */
count = 1;
if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
count = obj_desc->package.count;
}
/* Allocate a worst-case buffer for the _CIDs */
size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
sizeof(struct acpi_compatible_id_list));
cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
if (!cid_list) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
/* Init CID list */
cid_list->count = count;
cid_list->size = size;
/*
* A _CID can return either a single compatible ID or a package of
* compatible IDs. Each compatible ID can be one of the following:
* 1) Integer (32 bit compressed EISA ID) or
* 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
*/
/* The _CID object can be either a single CID or a package (list) of CIDs */
if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
/* Translate each package element */
for (i = 0; i < count; i++) {
status =
acpi_ut_translate_one_cid(obj_desc->package.
elements[i],
&cid_list->id[i]);
if (ACPI_FAILURE(status)) {
break;
}
}
} else {
/* Only one CID, translate to a string */
status = acpi_ut_translate_one_cid(obj_desc, cid_list->id);
}
/* Cleanup on error */
if (ACPI_FAILURE(status)) {
ACPI_FREE(cid_list);
} else {
*return_cid_list = cid_list;
}
/* On exit, we must delete the _CID return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_UID
*
* PARAMETERS: device_node - Node for the device
* Uid - Where the UID is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _UID control method that returns the hardware
* ID of the device.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
struct acpica_device_id *uid)
{
union acpi_operand_object *obj_desc;
acpi_status status;
ACPI_FUNCTION_TRACE(ut_execute_UID);
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
&obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
/* Convert the Numeric UID to string */
acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
uid->value);
} else {
/* Copy the String UID from the returned object */
acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer,
sizeof(uid->value));
}
*value = obj_desc->integer.value;
/* On exit, we must delete the return object */
@ -716,60 +419,64 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_Sxds
* FUNCTION: acpi_ut_execute_power_methods
*
* PARAMETERS: device_node - Node for the device
* Flags - Where the status flags are returned
* method_names - Array of power method names
* method_count - Number of methods to execute
* out_values - Where the power method values are returned
*
* RETURN: Status
* RETURN: Status, out_values
*
* DESCRIPTION: Executes _STA for selected device and stores results in
* *Flags.
* DESCRIPTION: Executes the specified power methods for the device and returns
* the result(s).
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
******************************************************************************/
acpi_status
acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest)
acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node,
const char **method_names,
u8 method_count, u8 *out_values)
{
union acpi_operand_object *obj_desc;
acpi_status status;
acpi_status final_status = AE_NOT_FOUND;
u32 i;
ACPI_FUNCTION_TRACE(ut_execute_sxds);
ACPI_FUNCTION_TRACE(ut_execute_power_methods);
for (i = 0; i < 4; i++) {
highest[i] = 0xFF;
for (i = 0; i < method_count; i++) {
/*
* Execute the power method (_sx_d or _sx_w). The only allowable
* return type is an Integer.
*/
status = acpi_ut_evaluate_object(device_node,
ACPI_CAST_PTR(char,
acpi_gbl_highest_dstate_names
[i]),
method_names[i]),
ACPI_BTYPE_INTEGER, &obj_desc);
if (ACPI_FAILURE(status)) {
if (status != AE_NOT_FOUND) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"%s on Device %4.4s, %s\n",
ACPI_CAST_PTR(char,
acpi_gbl_highest_dstate_names
[i]),
acpi_ut_get_node_name
(device_node),
acpi_format_exception
(status)));
return_ACPI_STATUS(status);
}
} else {
/* Extract the Dstate value */
highest[i] = (u8) obj_desc->integer.value;
if (ACPI_SUCCESS(status)) {
out_values[i] = (u8)obj_desc->integer.value;
/* Delete the return object */
acpi_ut_remove_reference(obj_desc);
}
final_status = AE_OK; /* At least one value is valid */
continue;
}
return_ACPI_STATUS(AE_OK);
out_values[i] = ACPI_UINT8_MAX;
if (status == AE_NOT_FOUND) {
continue; /* Ignore if not found */
}
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"Failed %s on Device %4.4s, %s\n",
ACPI_CAST_PTR(char, method_names[i]),
acpi_ut_get_node_name(device_node),
acpi_format_exception(status)));
}
return_ACPI_STATUS(final_status);
}

10
drivers/acpi/acpica/utglobal.c
View file

@ -90,7 +90,15 @@ const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
"\\_S5_"
};
const char *acpi_gbl_highest_dstate_names[4] = {
const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
"_S0W",
"_S1W",
"_S2W",
"_S3W",
"_S4W"
};
const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
"_S1D",
"_S2D",
"_S3D",

382
drivers/acpi/acpica/utids.c Normal file
View file

@ -0,0 +1,382 @@
/******************************************************************************
*
* Module Name: utids - support for device IDs - HID, UID, CID
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2009, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include "accommon.h"
#include "acinterp.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utids")
/* Local prototypes */
static void acpi_ut_copy_id_string(char *destination, char *source);
/*******************************************************************************
*
* FUNCTION: acpi_ut_copy_id_string
*
* PARAMETERS: Destination - Where to copy the string
* Source - Source string
*
* RETURN: None
*
* DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
* Performs removal of a leading asterisk if present -- workaround
* for a known issue on a bunch of machines.
*
******************************************************************************/
static void acpi_ut_copy_id_string(char *destination, char *source)
{
/*
* Workaround for ID strings that have a leading asterisk. This construct
* is not allowed by the ACPI specification (ID strings must be
* alphanumeric), but enough existing machines have this embedded in their
* ID strings that the following code is useful.
*/
if (*source == '*') {
source++;
}
/* Do the actual copy */
ACPI_STRCPY(destination, source);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_HID
*
* PARAMETERS: device_node - Node for the device
* return_id - Where the string HID is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _HID control method that returns the hardware
* ID of the device. The HID is either an 32-bit encoded EISAID
* Integer or a String. A string is always returned. An EISAID
* is converted to a string.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
struct acpica_device_id **return_id)
{
union acpi_operand_object *obj_desc;
struct acpica_device_id *hid;
u32 length;
acpi_status status;
ACPI_FUNCTION_TRACE(ut_execute_HID);
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
&obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Get the size of the String to be returned, includes null terminator */
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
length = ACPI_EISAID_STRING_SIZE;
} else {
length = obj_desc->string.length + 1;
}
/* Allocate a buffer for the HID */
hid =
ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
(acpi_size) length);
if (!hid) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Area for the string starts after DEVICE_ID struct */
hid->string = ACPI_ADD_PTR(char, hid, sizeof(struct acpica_device_id));
/* Convert EISAID to a string or simply copy existing string */
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value);
} else {
acpi_ut_copy_id_string(hid->string, obj_desc->string.pointer);
}
hid->length = length;
*return_id = hid;
cleanup:
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_UID
*
* PARAMETERS: device_node - Node for the device
* return_id - Where the string UID is returned
*
* RETURN: Status
*
* DESCRIPTION: Executes the _UID control method that returns the unique
* ID of the device. The UID is either a 64-bit Integer (NOT an
* EISAID) or a string. Always returns a string. A 64-bit integer
* is converted to a decimal string.
*
* NOTE: Internal function, no parameter validation
*
******************************************************************************/
acpi_status
acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
struct acpica_device_id **return_id)
{
union acpi_operand_object *obj_desc;
struct acpica_device_id *uid;
u32 length;
acpi_status status;
ACPI_FUNCTION_TRACE(ut_execute_UID);
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
&obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Get the size of the String to be returned, includes null terminator */
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
length = ACPI_MAX64_DECIMAL_DIGITS + 1;
} else {
length = obj_desc->string.length + 1;
}
/* Allocate a buffer for the UID */
uid =
ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) +
(acpi_size) length);
if (!uid) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Area for the string starts after DEVICE_ID struct */
uid->string = ACPI_ADD_PTR(char, uid, sizeof(struct acpica_device_id));
/* Convert an Integer to string, or just copy an existing string */
if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
acpi_ex_integer_to_string(uid->string, obj_desc->integer.value);
} else {
acpi_ut_copy_id_string(uid->string, obj_desc->string.pointer);
}
uid->length = length;
*return_id = uid;
cleanup:
/* On exit, we must delete the return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_execute_CID
*
* PARAMETERS: device_node - Node for the device
* return_cid_list - Where the CID list is returned
*
* RETURN: Status, list of CID strings
*
* DESCRIPTION: Executes the _CID control method that returns one or more
* compatible hardware IDs for the device.
*
* NOTE: Internal function, no parameter validation
*
* A _CID method can return either a single compatible ID or a package of
* compatible IDs. Each compatible ID can be one of the following:
* 1) Integer (32 bit compressed EISA ID) or
* 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
*
* The Integer CIDs are converted to string format by this function.
*
******************************************************************************/
acpi_status
acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
struct acpica_device_id_list **return_cid_list)
{
union acpi_operand_object **cid_objects;
union acpi_operand_object *obj_desc;
struct acpica_device_id_list *cid_list;
char *next_id_string;
u32 string_area_size;
u32 length;
u32 cid_list_size;
acpi_status status;
u32 count;
u32 i;
ACPI_FUNCTION_TRACE(ut_execute_CID);
/* Evaluate the _CID method for this device */
status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
| ACPI_BTYPE_PACKAGE, &obj_desc);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/*
* Get the count and size of the returned _CIDs. _CID can return either
* a Package of Integers/Strings or a single Integer or String.
* Note: This section also validates that all CID elements are of the
* correct type (Integer or String).
*/
if (obj_desc->common.type == ACPI_TYPE_PACKAGE) {
count = obj_desc->package.count;
cid_objects = obj_desc->package.elements;
} else { /* Single Integer or String CID */
count = 1;
cid_objects = &obj_desc;
}
string_area_size = 0;
for (i = 0; i < count; i++) {
/* String lengths include null terminator */
switch (cid_objects[i]->common.type) {
case ACPI_TYPE_INTEGER:
string_area_size += ACPI_EISAID_STRING_SIZE;
break;
case ACPI_TYPE_STRING:
string_area_size += cid_objects[i]->string.length + 1;
break;
default:
status = AE_TYPE;
goto cleanup;
}
}
/*
* Now that we know the length of the CIDs, allocate return buffer:
* 1) Size of the base structure +
* 2) Size of the CID DEVICE_ID array +
* 3) Size of the actual CID strings
*/
cid_list_size = sizeof(struct acpica_device_id_list) +
((count - 1) * sizeof(struct acpica_device_id)) + string_area_size;
cid_list = ACPI_ALLOCATE_ZEROED(cid_list_size);
if (!cid_list) {
status = AE_NO_MEMORY;
goto cleanup;
}
/* Area for CID strings starts after the CID DEVICE_ID array */
next_id_string = ACPI_CAST_PTR(char, cid_list->ids) +
((acpi_size) count * sizeof(struct acpica_device_id));
/* Copy/convert the CIDs to the return buffer */
for (i = 0; i < count; i++) {
if (cid_objects[i]->common.type == ACPI_TYPE_INTEGER) {
/* Convert the Integer (EISAID) CID to a string */
acpi_ex_eisa_id_to_string(next_id_string,
cid_objects[i]->integer.
value);
length = ACPI_EISAID_STRING_SIZE;
} else { /* ACPI_TYPE_STRING */
/* Copy the String CID from the returned object */
acpi_ut_copy_id_string(next_id_string,
cid_objects[i]->string.pointer);
length = cid_objects[i]->string.length + 1;
}
cid_list->ids[i].string = next_id_string;
cid_list->ids[i].length = length;
next_id_string += length;
}
/* Finish the CID list */
cid_list->count = count;
cid_list->list_size = cid_list_size;
*return_cid_list = cid_list;
cleanup:
/* On exit, we must delete the _CID return object */
acpi_ut_remove_reference(obj_desc);
return_ACPI_STATUS(status);
}

28
drivers/acpi/acpica/utmisc.c
View file

@ -118,6 +118,34 @@ const char *acpi_ut_validate_exception(acpi_status status)
return (ACPI_CAST_PTR(const char, exception));
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_is_pci_root_bridge
*
* PARAMETERS: Id - The HID/CID in string format
*
* RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
*
* DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
*
******************************************************************************/
u8 acpi_ut_is_pci_root_bridge(char *id)
{
/*
* Check if this is a PCI root bridge.
* ACPI 3.0+: check for a PCI Express root also.
*/
if (!(ACPI_STRCMP(id,
PCI_ROOT_HID_STRING)) ||
!(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) {
return (TRUE);
}
return (FALSE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_is_aml_table

11
drivers/acpi/container.c
View file

@ -200,20 +200,17 @@ container_walk_namespace_cb(acpi_handle handle,
u32 lvl, void *context, void **rv)
{
char *hid = NULL;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device_info *info;
acpi_status status;
int *action = context;
status = acpi_get_object_info(handle, &buffer);
if (ACPI_FAILURE(status) || !buffer.pointer) {
status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
return AE_OK;
}
info = buffer.pointer;
if (info->valid & ACPI_VALID_HID)
hid = info->hardware_id.value;
hid = info->hardware_id.string;
if (hid == NULL) {
goto end;
@ -240,7 +237,7 @@ container_walk_namespace_cb(acpi_handle handle,
}
end:
kfree(buffer.pointer);
kfree(info);
return AE_OK;
}

8
drivers/acpi/dock.c
View file

@ -231,18 +231,16 @@ static int is_ata(acpi_handle handle)
static int is_battery(acpi_handle handle)
{
struct acpi_device_info *info;
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
int ret = 1;
if (!ACPI_SUCCESS(acpi_get_object_info(handle, &buffer)))
if (!ACPI_SUCCESS(acpi_get_object_info(handle, &info)))
return 0;
info = buffer.pointer;
if (!(info->valid & ACPI_VALID_HID))
ret = 0;
else
ret = !strcmp("PNP0C0A", info->hardware_id.value);
ret = !strcmp("PNP0C0A", info->hardware_id.string);
kfree(buffer.pointer);
kfree(info);
return ret;
}

6
drivers/acpi/glue.c
View file

@ -93,15 +93,13 @@ do_acpi_find_child(acpi_handle handle, u32 lvl, void *context, void **rv)
{
acpi_status status;
struct acpi_device_info *info;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_find_child *find = context;
status = acpi_get_object_info(handle, &buffer);
status = acpi_get_object_info(handle, &info);
if (ACPI_SUCCESS(status)) {
info = buffer.pointer;
if (info->address == find->address)
find->handle = handle;
kfree(buffer.pointer);
kfree(info);
}
return AE_OK;
}

137
drivers/acpi/scan.c
View file

@ -60,13 +60,13 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias,
}
if (acpi_dev->flags.compatible_ids) {
struct acpi_compatible_id_list *cid_list;
struct acpica_device_id_list *cid_list;
int i;
cid_list = acpi_dev->pnp.cid_list;
for (i = 0; i < cid_list->count; i++) {
count = snprintf(&modalias[len], size, "%s:",
cid_list->id[i].value);
cid_list->ids[i].string);
if (count < 0 || count >= size) {
printk(KERN_ERR PREFIX "%s cid[%i] exceeds event buffer size",
acpi_dev->pnp.device_name, i);
@ -287,14 +287,14 @@ int acpi_match_device_ids(struct acpi_device *device,
}
if (device->flags.compatible_ids) {
struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
struct acpica_device_id_list *cid_list = device->pnp.cid_list;
int i;
for (id = ids; id->id[0]; id++) {
/* compare multiple _CID entries against driver ids */
for (i = 0; i < cid_list->count; i++) {
if (!strcmp((char*)id->id,
cid_list->id[i].value))
cid_list->ids[i].string))
return 0;
}
}
@ -999,33 +999,89 @@ static int acpi_dock_match(struct acpi_device *device)
return acpi_get_handle(device->handle, "_DCK", &tmp);
}
static struct acpica_device_id_list*
acpi_add_cid(
struct acpi_device_info *info,
struct acpica_device_id *new_cid)
{
struct acpica_device_id_list *cid;
char *next_id_string;
acpi_size cid_length;
acpi_size new_cid_length;
u32 i;
/* Allocate new CID list with room for the new CID */
if (!new_cid)
new_cid_length = info->compatible_id_list.list_size;
else if (info->compatible_id_list.list_size)
new_cid_length = info->compatible_id_list.list_size +
new_cid->length + sizeof(struct acpica_device_id);
else
new_cid_length = sizeof(struct acpica_device_id_list) + new_cid->length;
cid = ACPI_ALLOCATE_ZEROED(new_cid_length);
if (!cid) {
return NULL;
}
cid->list_size = new_cid_length;
cid->count = info->compatible_id_list.count;
if (new_cid)
cid->count++;
next_id_string = (char *) cid->ids + (cid->count * sizeof(struct acpica_device_id));
/* Copy all existing CIDs */
for (i = 0; i < info->compatible_id_list.count; i++) {
cid_length = info->compatible_id_list.ids[i].length;
cid->ids[i].string = next_id_string;
cid->ids[i].length = cid_length;
ACPI_MEMCPY(next_id_string, info->compatible_id_list.ids[i].string,
cid_length);
next_id_string += cid_length;
}
/* Append the new CID */
if (new_cid) {
cid->ids[i].string = next_id_string;
cid->ids[i].length = new_cid->length;
ACPI_MEMCPY(next_id_string, new_cid->string, new_cid->length);
}
return cid;
}
static void acpi_device_set_id(struct acpi_device *device,
struct acpi_device *parent, acpi_handle handle,
int type)
{
struct acpi_device_info *info;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device_info *info = NULL;
char *hid = NULL;
char *uid = NULL;
struct acpi_compatible_id_list *cid_list = NULL;
const char *cid_add = NULL;
struct acpica_device_id_list *cid_list = NULL;
char *cid_add = NULL;
acpi_status status;
switch (type) {
case ACPI_BUS_TYPE_DEVICE:
status = acpi_get_object_info(handle, &buffer);
status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__);
return;
}
info = buffer.pointer;
if (info->valid & ACPI_VALID_HID)
hid = info->hardware_id.value;
hid = info->hardware_id.string;
if (info->valid & ACPI_VALID_UID)
uid = info->unique_id.value;
uid = info->unique_id.string;
if (info->valid & ACPI_VALID_CID)
cid_list = &info->compatibility_id;
cid_list = &info->compatible_id_list;
if (info->valid & ACPI_VALID_ADR) {
device->pnp.bus_address = info->address;
device->flags.bus_address = 1;
@ -1076,55 +1132,44 @@ static void acpi_device_set_id(struct acpi_device *device,
}
if (hid) {
device->pnp.hardware_id = ACPI_ALLOCATE_ZEROED(strlen (hid) + 1);
if (device->pnp.hardware_id) {
strcpy(device->pnp.hardware_id, hid);
device->flags.hardware_id = 1;
}
} else
device->pnp.hardware_id = NULL;
if (uid) {
device->pnp.unique_id = ACPI_ALLOCATE_ZEROED(strlen (uid) + 1);
if (device->pnp.unique_id) {
strcpy(device->pnp.unique_id, uid);
device->flags.unique_id = 1;
}
if (cid_list || cid_add) {
struct acpi_compatible_id_list *list;
int size = 0;
int count = 0;
} else
device->pnp.unique_id = NULL;
if (cid_list) {
size = cid_list->size;
} else if (cid_add) {
size = sizeof(struct acpi_compatible_id_list);
cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
if (!cid_list) {
printk(KERN_ERR "Memory allocation error\n");
kfree(buffer.pointer);
return;
if (cid_list || cid_add) {
struct acpica_device_id_list *list;
if (cid_add) {
struct acpica_device_id cid;
cid.length = strlen (cid_add) + 1;
cid.string = cid_add;
list = acpi_add_cid(info, &cid);
} else {
cid_list->count = 0;
cid_list->size = size;
list = acpi_add_cid(info, NULL);
}
}
if (cid_add)
size += sizeof(struct acpi_compatible_id);
list = kmalloc(size, GFP_KERNEL);
if (list) {
if (cid_list) {
memcpy(list, cid_list, cid_list->size);
count = cid_list->count;
}
if (cid_add) {
strncpy(list->id[count].value, cid_add,
ACPI_MAX_CID_LENGTH);
count++;
device->pnp.cid_list = list;
if (cid_add)
device->flags.compatible_ids = 1;
}
list->size = size;
list->count = count;
device->pnp.cid_list = list;
} else
printk(KERN_ERR PREFIX "Memory allocation error\n");
}
kfree(buffer.pointer);
kfree(info);
}
static int acpi_device_set_context(struct acpi_device *device, int type)

9
drivers/char/agp/hp-agp.c
View file

@ -478,7 +478,6 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
{
acpi_handle handle, parent;
acpi_status status;
struct acpi_buffer buffer;
struct acpi_device_info *info;
u64 lba_hpa, sba_hpa, length;
int match;
@ -490,13 +489,11 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
/* Look for an enclosing IOC scope and find its CSR space */
handle = obj;
do {
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
status = acpi_get_object_info(handle, &buffer);
status = acpi_get_object_info(handle, &info);
if (ACPI_SUCCESS(status)) {
/* TBD check _CID also */
info = buffer.pointer;
info->hardware_id.value[sizeof(info->hardware_id)-1] = '\0';
match = (strcmp(info->hardware_id.value, "HWP0001") == 0);
info->hardware_id.string[sizeof(info->hardware_id.length)-1] = '\0';
match = (strcmp(info->hardware_id.string, "HWP0001") == 0);
kfree(info);
if (match) {
status = hp_acpi_csr_space(handle, &sba_hpa, &length);

5
drivers/ide/ide-acpi.c
View file

@ -114,8 +114,6 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
unsigned int bus, devnum, func;
acpi_integer addr;
acpi_handle dev_handle;
struct acpi_buffer buffer = {.length = ACPI_ALLOCATE_BUFFER,
.pointer = NULL};
acpi_status status;
struct acpi_device_info *dinfo = NULL;
int ret = -ENODEV;
@ -134,12 +132,11 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
goto err;
}
status = acpi_get_object_info(dev_handle, &buffer);
status = acpi_get_object_info(dev_handle, &dinfo);
if (ACPI_FAILURE(status)) {
DEBPRINT("get_object_info for device failed\n");
goto err;
}
dinfo = buffer.pointer;
if (dinfo && (dinfo->valid & ACPI_VALID_ADR) &&
dinfo->address == addr) {
*pcidevfn = addr;

12
drivers/pci/hotplug/acpiphp_ibm.c
View file

@ -398,23 +398,21 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
acpi_handle *phandle = (acpi_handle *)context;
acpi_status status;
struct acpi_device_info *info;
struct acpi_buffer info_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
int retval = 0;
status = acpi_get_object_info(handle, &info_buffer);
status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
err("%s: Failed to get device information status=0x%x\n",
__func__, status);
return retval;
}
info = info_buffer.pointer;
info->hardware_id.value[sizeof(info->hardware_id.value) - 1] = '\0';
info->hardware_id.string[sizeof(info->hardware_id.length) - 1] = '\0';
if (info->current_status && (info->valid & ACPI_VALID_HID) &&
(!strcmp(info->hardware_id.value, IBM_HARDWARE_ID1) ||
!strcmp(info->hardware_id.value, IBM_HARDWARE_ID2))) {
(!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) ||
!strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) {
dbg("found hardware: %s, handle: %p\n",
info->hardware_id.value, handle);
info->hardware_id.string, handle);
*phandle = handle;
/* returning non-zero causes the search to stop
* and returns this value to the caller of

7
drivers/platform/x86/sony-laptop.c
View file

@ -976,15 +976,12 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
void *context, void **return_value)
{
struct acpi_device_info *info;
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) {
info = buffer.pointer;
if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
(char *)&info->name, info->param_count);
kfree(buffer.pointer);
kfree(info);
}
return AE_OK;

6
drivers/pnp/pnpacpi/core.c
View file

@ -194,13 +194,13 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
pnpacpi_parse_resource_option_data(dev);
if (device->flags.compatible_ids) {
struct acpi_compatible_id_list *cid_list = device->pnp.cid_list;
struct acpica_device_id_list *cid_list = device->pnp.cid_list;
int i;
for (i = 0; i < cid_list->count; i++) {
if (!ispnpidacpi(cid_list->id[i].value))
if (!ispnpidacpi(cid_list->ids[i].string))
continue;
pnp_add_id(dev, cid_list->id[i].value);
pnp_add_id(dev, cid_list->ids[i].string);
}
}

8
include/acpi/acpi_bus.h
View file

@ -173,17 +173,15 @@ struct acpi_device_dir {
typedef char acpi_bus_id[8];
typedef unsigned long acpi_bus_address;
typedef char acpi_hardware_id[15];
typedef char acpi_unique_id[9];
typedef char acpi_device_name[40];
typedef char acpi_device_class[20];
struct acpi_device_pnp {
acpi_bus_id bus_id; /* Object name */
acpi_bus_address bus_address; /* _ADR */
acpi_hardware_id hardware_id; /* _HID */
struct acpi_compatible_id_list *cid_list; /* _CIDs */
acpi_unique_id unique_id; /* _UID */
char *hardware_id; /* _HID */
struct acpica_device_id_list *cid_list; /* _CIDs */
char *unique_id; /* _UID */
acpi_device_name device_name; /* Driver-determined */
acpi_device_class device_class; /* " */
};

3
include/acpi/acpixf.h
View file

@ -200,7 +200,8 @@ acpi_evaluate_object_typed(acpi_handle object,
acpi_object_type return_type);
acpi_status
acpi_get_object_info(acpi_handle handle, struct acpi_buffer *return_buffer);
acpi_get_object_info(acpi_handle handle,
struct acpi_device_info **return_buffer);
acpi_status acpi_install_method(u8 *buffer);

85
include/acpi/actypes.h
View file

@ -969,38 +969,60 @@ acpi_status(*acpi_walk_callback) (acpi_handle obj_handle,
#define ACPI_INTERRUPT_NOT_HANDLED 0x00
#define ACPI_INTERRUPT_HANDLED 0x01
/* Length of _HID, _UID, _CID, and UUID values */
/* Length of 32-bit EISAID values when converted back to a string */
#define ACPI_EISAID_STRING_SIZE 8 /* Includes null terminator */
/* Length of UUID (string) values */
#define ACPI_DEVICE_ID_LENGTH 0x09
#define ACPI_MAX_CID_LENGTH 48
#define ACPI_UUID_LENGTH 16
/* Common string version of device HIDs and UIDs */
/* Structures used for device/processor HID, UID, CID */
struct acpica_device_id {
char value[ACPI_DEVICE_ID_LENGTH];
u32 length; /* Length of string + null */
char *string;
};
/* Common string version of device CIDs */
struct acpi_compatible_id {
char value[ACPI_MAX_CID_LENGTH];
struct acpica_device_id_list {
u32 count; /* Number of IDs in Ids array */
u32 list_size; /* Size of list, including ID strings */
struct acpica_device_id ids[1]; /* ID array */
};
struct acpi_compatible_id_list {
u32 count;
u32 size;
struct acpi_compatible_id id[1];
/*
* Structure returned from acpi_get_object_info.
* Optimized for both 32- and 64-bit builds
*/
struct acpi_device_info {
u32 info_size; /* Size of info, including ID strings */
u32 name; /* ACPI object Name */
acpi_object_type type; /* ACPI object Type */
u8 param_count; /* If a method, required parameter count */
u8 valid; /* Indicates which optional fields are valid */
u8 flags; /* Miscellaneous info */
u8 highest_dstates[4]; /* _sx_d values: 0xFF indicates not valid */
u8 lowest_dstates[5]; /* _sx_w values: 0xFF indicates not valid */
u32 current_status; /* _STA value */
acpi_integer address; /* _ADR value */
struct acpica_device_id hardware_id; /* _HID value */
struct acpica_device_id unique_id; /* _UID value */
struct acpica_device_id_list compatible_id_list; /* _CID list <must be last> */
};
/* Structure and flags for acpi_get_object_info */
/* Values for Flags field above (acpi_get_object_info) */
#define ACPI_VALID_STA 0x0001
#define ACPI_VALID_ADR 0x0002
#define ACPI_VALID_HID 0x0004
#define ACPI_VALID_UID 0x0008
#define ACPI_VALID_CID 0x0010
#define ACPI_VALID_SXDS 0x0020
#define ACPI_PCI_ROOT_BRIDGE 0x01
/* Flags for Valid field above (acpi_get_object_info) */
#define ACPI_VALID_STA 0x01
#define ACPI_VALID_ADR 0x02
#define ACPI_VALID_HID 0x04
#define ACPI_VALID_UID 0x08
#define ACPI_VALID_CID 0x10
#define ACPI_VALID_SXDS 0x20
#define ACPI_VALID_SXWS 0x40
/* Flags for _STA method */
@ -1011,29 +1033,6 @@ struct acpi_compatible_id_list {
#define ACPI_STA_DEVICE_OK 0x08 /* Synonym */
#define ACPI_STA_BATTERY_PRESENT 0x10
#define ACPI_COMMON_OBJ_INFO \
acpi_object_type type; /* ACPI object type */ \
acpi_name name /* ACPI object Name */
struct acpi_obj_info_header {
ACPI_COMMON_OBJ_INFO;
};
/* Structure returned from Get Object Info */
struct acpi_device_info {
ACPI_COMMON_OBJ_INFO;
u32 param_count; /* If a method, required parameter count */
u32 valid; /* Indicates which fields below are valid */
u32 current_status; /* _STA value */
acpi_integer address; /* _ADR value if any */
struct acpica_device_id hardware_id; /* _HID value if any */
struct acpica_device_id unique_id; /* _UID value if any */
u8 highest_dstates[4]; /* _sx_d values: 0xFF indicates not valid */
struct acpi_compatible_id_list compatibility_id; /* List of _CIDs if any */
};
/* Context structs for address space handlers */
struct acpi_pci_id {