Commit 15b8dd53 authored by Bob Moore's avatar Bob Moore Committed by Len Brown

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: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 9c61b34c
......@@ -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)
......
......@@ -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;
}
......
......@@ -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
......@@ -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
......
......@@ -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];
......
......@@ -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
......
......@@ -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_HID(struct acpi_namespace_node *device_node,
struct acpica_device_id *hid);
acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 *status_flags);
acpi_status
acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
struct acpi_compatible_id_list **return_cid_list);
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_STA(struct acpi_namespace_node *device_node,
u32 * status_flags);
acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
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);
......
......@@ -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);
}
......
......@@ -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;
......
......@@ -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);
......
......@@ -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;
}
......
......@@ -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 */
size = sizeof(struct acpi_device_info);
/* Get the namespace node data while the namespace is locked */
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);
if (acpi_ut_is_pci_root_bridge(hid->string)) {
info->flags |= ACPI_PCI_ROOT_BRIDGE;
}
}
return_info = buffer->pointer;
ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
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);
}
......
This diff is collapsed.
......@@ -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",
......
This diff is collapsed.
......@@ -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
......
......@@ -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;
}
......
......@@ -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;
}
......
......@@ -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;
}
......
......@@ -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;
}
} else
device->pnp.unique_id = NULL;
if (cid_list || cid_add) {
struct acpi_compatible_id_list *list;
int size = 0;
int count = 0;
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;
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)
......
......@@ -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);
......
......@@ -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;
......
......@@ -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
......
......@@ -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;
......
......@@ -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);
}
}
......
......@@ -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; /* " */
};
......
......@@ -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);
......
......@@ -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_PCI_ROOT_BRIDGE 0x01
/* Flags for Valid 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_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 {
......
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