ACPI_STATUS
acpi_cm_execute_UID (
ACPI_NAMESPACE_NODE *device_node,
DEVICE_ID *uid)
{
ACPI_OPERAND_OBJECT *obj_desc;
ACPI_STATUS status;
/* Execute the method */
status = acpi_ns_evaluate_relative (device_node,
METHOD_NAME__UID, NULL, &obj_desc);
if (ACPI_FAILURE (status)) {
return (status);
}
/* Did we get a return object? */
if (!obj_desc) {
return (AE_TYPE);
}
/*
* A _UID can return either a Number (32 bit compressed EISA ID) or
* a string
*/
if ((obj_desc->common.type != ACPI_TYPE_NUMBER) &&
(obj_desc->common.type != ACPI_TYPE_STRING))
{
status = AE_TYPE;
}
else {
if (obj_desc->common.type == ACPI_TYPE_NUMBER) {
/* Convert the Numeric UID to string */
acpi_aml_unsigned_integer_to_string (obj_desc->number.value, uid->buffer);
}
else {
/* Copy the String UID from the returned object */
STRNCPY(uid->buffer, obj_desc->string.pointer, sizeof(uid->buffer));
}
}
/* On exit, we must delete the return object */
acpi_cm_remove_reference (obj_desc);
return (status);
}
ACPI_STATUS
acpi_cm_execute_STA (
ACPI_NAMESPACE_NODE *device_node,
u32 *flags)
{
ACPI_OPERAND_OBJECT *obj_desc;
ACPI_STATUS status;
/* Execute the method */
status = acpi_ns_evaluate_relative (device_node,
METHOD_NAME__STA, NULL, &obj_desc);
if (AE_NOT_FOUND == status) {
*flags = 0x0F;
status = AE_OK;
}
else /* success */ {
/* Did we get a return object? */
if (!obj_desc) {
return (AE_TYPE);
}
/* Is the return object of the correct type? */
if (obj_desc->common.type != ACPI_TYPE_NUMBER) {
status = AE_TYPE;
}
else {
/* Extract the status flags */
*flags = (u32) obj_desc->number.value;
}
/* On exit, we must delete the return object */
acpi_cm_remove_reference (obj_desc);
}
return (status);
}
ACPI_STATUS
acpi_cm_evaluate_numeric_object (
NATIVE_CHAR *object_name,
ACPI_NAMESPACE_NODE *device_node,
ACPI_INTEGER *address)
{
ACPI_OPERAND_OBJECT *obj_desc;
ACPI_STATUS status;
/* Execute the method */
status = acpi_ns_evaluate_relative (device_node, object_name, NULL, &obj_desc);
if (ACPI_FAILURE (status)) {
return (status);
}
/* Did we get a return object? */
if (!obj_desc) {
return (AE_TYPE);
}
/* Is the return object of the correct type? */
if (obj_desc->common.type != ACPI_TYPE_NUMBER) {
status = AE_TYPE;
}
else {
/*
* Since the structure is a union, setting any field will set all
* of the variables in the union
*/
*address = obj_desc->number.value;
}
/* On exit, we must delete the return object */
acpi_cm_remove_reference (obj_desc);
return (status);
}
acpi_status
acpi_ns_init_one_device (
acpi_handle obj_handle,
u32 nesting_level,
void *context,
void **return_value)
{
acpi_status status;
acpi_namespace_node *node;
u32 flags;
acpi_device_walk_info *info = (acpi_device_walk_info *) context;
FUNCTION_TRACE ("Ns_init_one_device");
if (!(acpi_dbg_level & ACPI_LV_INIT)) {
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_OK, "."));
}
info->device_count++;
acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
node = acpi_ns_map_handle_to_node (obj_handle);
if (!node) {
acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
return (AE_BAD_PARAMETER);
}
acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
/*
* Run _STA to determine if we can run _INI on the device.
*/
DEBUG_EXEC (acpi_ut_display_init_pathname (node, "_STA [Method]"));
status = acpi_ut_execute_STA (node, &flags);
if (ACPI_FAILURE (status)) {
/* Ignore error and move on to next device */
return_ACPI_STATUS (AE_OK);
}
info->num_STA++;
if (!(flags & 0x01)) {
/* don't look at children of a not present device */
return_ACPI_STATUS(AE_CTRL_DEPTH);
}
/*
* The device is present. Run _INI.
*/
DEBUG_EXEC (acpi_ut_display_init_pathname (obj_handle, "_INI [Method]"));
status = acpi_ns_evaluate_relative (obj_handle, "_INI", NULL, NULL);
if (AE_NOT_FOUND == status) {
/* No _INI means device requires no initialization */
status = AE_OK;
}
else if (ACPI_FAILURE (status)) {
/* Ignore error and move on to next device */
#ifdef ACPI_DEBUG
NATIVE_CHAR *scope_name = acpi_ns_get_table_pathname (obj_handle);
ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
scope_name, acpi_format_exception (status)));
ACPI_MEM_FREE (scope_name);
#endif
}
else {
/* Count of successful INIs */
info->num_INI++;
}
return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_evaluate_object (
acpi_handle handle,
acpi_string pathname,
struct acpi_object_list *external_params,
struct acpi_buffer *return_buffer)
{
acpi_status status;
acpi_status status2;
struct acpi_parameter_info info;
acpi_size buffer_space_needed;
u32 i;
ACPI_FUNCTION_TRACE ("acpi_evaluate_object");
info.node = handle;
info.parameters = NULL;
info.return_object = NULL;
info.parameter_type = ACPI_PARAM_ARGS;
/*
* If there are parameters to be passed to the object
* (which must be a control method), the external objects
* must be converted to internal objects
*/
if (external_params && external_params->count) {
/*
* Allocate a new parameter block for the internal objects
* Add 1 to count to allow for null terminated internal list
*/
info.parameters = ACPI_MEM_CALLOCATE (
((acpi_size) external_params->count + 1) *
sizeof (void *));
if (!info.parameters) {
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* Convert each external object in the list to an
* internal object
*/
for (i = 0; i < external_params->count; i++) {
status = acpi_ut_copy_eobject_to_iobject (&external_params->pointer[i],
&info.parameters[i]);
if (ACPI_FAILURE (status)) {
acpi_ut_delete_internal_object_list (info.parameters);
return_ACPI_STATUS (status);
}
}
info.parameters[external_params->count] = NULL;
}
/*
* Three major cases:
* 1) Fully qualified pathname
* 2) No handle, not fully qualified pathname (error)
* 3) Valid handle
*/
if ((pathname) &&
(acpi_ns_valid_root_prefix (pathname[0]))) {
/*
* The path is fully qualified, just evaluate by name
*/
status = acpi_ns_evaluate_by_name (pathname, &info);
}
else if (!handle) {
/*
* A handle is optional iff a fully qualified pathname
* is specified. Since we've already handled fully
* qualified names above, this is an error
*/
if (!pathname) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Both Handle and Pathname are NULL\n"));
}
else {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Handle is NULL and Pathname is relative\n"));
}
status = AE_BAD_PARAMETER;
}
else {
/*
* We get here if we have a handle -- and if we have a
* pathname it is relative. The handle will be validated
* in the lower procedures
*/
if (!pathname) {
/*
* The null pathname case means the handle is for
* the actual object to be evaluated
*/
status = acpi_ns_evaluate_by_handle (&info);
}
else {
/*
* Both a Handle and a relative Pathname
*/
status = acpi_ns_evaluate_relative (pathname, &info);
}
}
/*
* If we are expecting a return value, and all went well above,
* copy the return value to an external object.
*/
if (return_buffer) {
if (!info.return_object) {
return_buffer->length = 0;
}
else {
if (ACPI_GET_DESCRIPTOR_TYPE (info.return_object) == ACPI_DESC_TYPE_NAMED) {
/*
* If we received a NS Node as a return object, this means that
* the object we are evaluating has nothing interesting to
* return (such as a mutex, etc.) We return an error because
* these types are essentially unsupported by this interface.
* We don't check up front because this makes it easier to add
* support for various types at a later date if necessary.
*/
status = AE_TYPE;
info.return_object = NULL; /* No need to delete a NS Node */
return_buffer->length = 0;
}
if (ACPI_SUCCESS (status)) {
/*
* Find out how large a buffer is needed
* to contain the returned object
*/
status = acpi_ut_get_object_size (info.return_object,
&buffer_space_needed);
if (ACPI_SUCCESS (status)) {
/* Validate/Allocate/Clear caller buffer */
status = acpi_ut_initialize_buffer (return_buffer, buffer_space_needed);
if (ACPI_FAILURE (status)) {
/*
* Caller's buffer is too small or a new one can't be allocated
*/
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"Needed buffer size %X, %s\n",
(u32) buffer_space_needed,
acpi_format_exception (status)));
}
else {
/*
* We have enough space for the object, build it
*/
status = acpi_ut_copy_iobject_to_eobject (info.return_object,
return_buffer);
}
}
}
}
}
if (info.return_object) {
/*
* Delete the internal return object. NOTE: Interpreter
* must be locked to avoid race condition.
*/
status2 = acpi_ex_enter_interpreter ();
if (ACPI_SUCCESS (status2)) {
/*
* Delete the internal return object. (Or at least
* decrement the reference count by one)
*/
acpi_ut_remove_reference (info.return_object);
acpi_ex_exit_interpreter ();
}
}
/*
* Free the input parameter list (if we created one),
*/
if (info.parameters) {
/* Free the allocated parameter block */
acpi_ut_delete_internal_object_list (info.parameters);
}
return_ACPI_STATUS (status);
}
acpi_status
acpi_ut_evaluate_object (
struct acpi_namespace_node *prefix_node,
char *path,
u32 expected_return_btypes,
union acpi_operand_object **return_desc)
{
struct acpi_parameter_info info;
acpi_status status;
u32 return_btype;
ACPI_FUNCTION_TRACE ("ut_evaluate_object");
info.node = prefix_node;
info.parameters = NULL;
info.parameter_type = ACPI_PARAM_ARGS;
/* Evaluate the object/method */
status = acpi_ns_evaluate_relative (path, &info);
if (ACPI_FAILURE (status)) {
if (status == AE_NOT_FOUND) {
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s.%s] was not found\n",
acpi_ut_get_node_name (prefix_node), path));
}
else {
ACPI_REPORT_METHOD_ERROR ("Method execution failed",
prefix_node, path, status);
}
return_ACPI_STATUS (status);
}
/* Did we get a return object? */
if (!info.return_object) {
if (expected_return_btypes) {
ACPI_REPORT_METHOD_ERROR ("No object was returned from",
prefix_node, path, AE_NOT_EXIST);
return_ACPI_STATUS (AE_NOT_EXIST);
}
return_ACPI_STATUS (AE_OK);
}
/* Map the return object type to the bitmapped type */
switch (ACPI_GET_OBJECT_TYPE (info.return_object)) {
case ACPI_TYPE_INTEGER:
return_btype = ACPI_BTYPE_INTEGER;
break;
case ACPI_TYPE_BUFFER:
return_btype = ACPI_BTYPE_BUFFER;
break;
case ACPI_TYPE_STRING:
return_btype = ACPI_BTYPE_STRING;
break;
case ACPI_TYPE_PACKAGE:
return_btype = ACPI_BTYPE_PACKAGE;
break;
default:
return_btype = 0;
break;
}
/* Is the return object one of the expected types? */
if (!(expected_return_btypes & return_btype)) {
ACPI_REPORT_METHOD_ERROR ("Return object type is incorrect",
prefix_node, path, AE_TYPE);
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Type returned from %s was incorrect: %X\n",
path, ACPI_GET_OBJECT_TYPE (info.return_object)));
/* On error exit, we must delete the return object */
acpi_ut_remove_reference (info.return_object);
return_ACPI_STATUS (AE_TYPE);
}
/* Object type is OK, return it */
*return_desc = info.return_object;
return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_rs_get_prt_method_data (
acpi_handle handle,
acpi_buffer *ret_buffer)
{
acpi_operand_object *ret_obj;
acpi_status status;
u32 buffer_space_needed;
FUNCTION_TRACE ("Rs_get_prt_method_data");
/* already validated params, so we won't repeat here */
buffer_space_needed = ret_buffer->length;
/*
* Execute the method, no parameters
*/
status = acpi_ns_evaluate_relative (handle, "_PRT", NULL, &ret_obj);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
if (!ret_obj) {
/* Return object is required */
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No object was returned from _PRT\n"));
return_ACPI_STATUS (AE_TYPE);
}
/*
* The return object will be a package, so check the
* parameters. If the return object is not a package,
* then the underlying AML code is corrupt or improperly
* written.
*/
if (ACPI_TYPE_PACKAGE != ret_obj->common.type) {
status = AE_AML_OPERAND_TYPE;
goto cleanup;
}
/*
* Make the call to create a resource linked list from the
* byte stream buffer that comes back from the _CRS method
* execution.
*/
status = acpi_rs_create_pci_routing_table (ret_obj, ret_buffer->pointer,
&buffer_space_needed);
/*
* Tell the user how much of the buffer we have used or is needed
* and return the final status.
*/
ret_buffer->length = buffer_space_needed;
/* On exit, we must delete the object returned by evaluate_object */
cleanup:
acpi_ut_remove_reference (ret_obj);
return_ACPI_STATUS (status);
}
acpi_status
acpi_rs_set_srs_method_data (
acpi_handle handle,
acpi_buffer *in_buffer)
{
acpi_operand_object *params[2];
acpi_status status;
u8 *byte_stream = NULL;
u32 buffer_size_needed = 0;
FUNCTION_TRACE ("Rs_set_srs_method_data");
/* already validated params, so we won't repeat here */
/*
* The In_buffer parameter will point to a linked list of
* resource parameters. It needs to be formatted into a
* byte stream to be sent in as an input parameter.
*/
buffer_size_needed = 0;
/*
* First call is to get the buffer size needed
*/
status = acpi_rs_create_byte_stream (in_buffer->pointer, byte_stream,
&buffer_size_needed);
/*
* We expect a return of AE_BUFFER_OVERFLOW
* if not, exit with the error
*/
if (AE_BUFFER_OVERFLOW != status) {
return_ACPI_STATUS (status);
}
/*
* Allocate the buffer needed
*/
byte_stream = ACPI_MEM_CALLOCATE (buffer_size_needed);
if (NULL == byte_stream) {
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* Now call to convert the linked list into a byte stream
*/
status = acpi_rs_create_byte_stream (in_buffer->pointer, byte_stream,
&buffer_size_needed);
if (ACPI_FAILURE (status)) {
goto cleanup;
}
/*
* Init the param object
*/
params[0] = acpi_ut_create_internal_object (ACPI_TYPE_BUFFER);
if (!params[0]) {
status = AE_NO_MEMORY;
goto cleanup;
}
params [1] = NULL;
/*
* Set up the parameter object
*/
params[0]->buffer.length = buffer_size_needed;
params[0]->buffer.pointer = byte_stream;
/*
* Execute the method, no return value
*/
status = acpi_ns_evaluate_relative (handle, "_SRS", params, NULL);
acpi_ut_remove_reference (params[0]);
/*
* Clean up and return the status from Acpi_ns_evaluate_relative
*/
cleanup:
return_ACPI_STATUS (status);
}
static acpi_status
acpi_ns_init_one_device(acpi_handle obj_handle,
u32 nesting_level, void *context, void **return_value)
{
struct acpi_device_walk_info *info =
(struct acpi_device_walk_info *)context;
struct acpi_parameter_info pinfo;
u32 flags;
acpi_status status;
ACPI_FUNCTION_TRACE("ns_init_one_device");
pinfo.parameters = NULL;
pinfo.parameter_type = ACPI_PARAM_ARGS;
pinfo.node = acpi_ns_map_handle_to_node(obj_handle);
if (!pinfo.node) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/*
* We will run _STA/_INI on Devices, Processors and thermal_zones only
*/
if ((pinfo.node->type != ACPI_TYPE_DEVICE) &&
(pinfo.node->type != ACPI_TYPE_PROCESSOR) &&
(pinfo.node->type != ACPI_TYPE_THERMAL)) {
return_ACPI_STATUS(AE_OK);
}
if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
(!(acpi_dbg_level & ACPI_LV_INFO))) {
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
}
info->device_count++;
/*
* Run _STA to determine if we can run _INI on the device.
*/
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
pinfo.node,
METHOD_NAME__STA));
status = acpi_ut_execute_STA(pinfo.node, &flags);
if (ACPI_FAILURE(status)) {
if (pinfo.node->type == ACPI_TYPE_DEVICE) {
/* Ignore error and move on to next device */
return_ACPI_STATUS(AE_OK);
}
/* _STA is not required for Processor or thermal_zone objects */
} else {
info->num_STA++;
if (!(flags & 0x01)) {
/* Don't look at children of a not present device */
return_ACPI_STATUS(AE_CTRL_DEPTH);
}
}
/*
* The device is present. Run _INI.
*/
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD,
pinfo.node,
METHOD_NAME__INI));
status = acpi_ns_evaluate_relative(METHOD_NAME__INI, &pinfo);
if (ACPI_FAILURE(status)) {
/* No _INI (AE_NOT_FOUND) means device requires no initialization */
if (status != AE_NOT_FOUND) {
/* Ignore error and move on to next device */
#ifdef ACPI_DEBUG_OUTPUT
char *scope_name =
acpi_ns_get_external_pathname(pinfo.node);
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "%s._INI failed: %s\n",
scope_name,
acpi_format_exception(status)));
ACPI_MEM_FREE(scope_name);
#endif
}
status = AE_OK;
} else {
/* Delete any return object (especially if implicit_return is enabled) */
if (pinfo.return_object) {
acpi_ut_remove_reference(pinfo.return_object);
}
/* Count of successful INIs */
info->num_INI++;
}
if (acpi_gbl_init_handler) {
/* External initialization handler is present, call it */
status =
acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI);
}
return_ACPI_STATUS(status);
}
ACPI_STATUS
acpi_evaluate_object (
ACPI_HANDLE handle,
ACPI_STRING pathname,
ACPI_OBJECT_LIST *param_objects,
ACPI_BUFFER *return_buffer)
{
ACPI_STATUS status;
ACPI_OPERAND_OBJECT **param_ptr = NULL;
ACPI_OPERAND_OBJECT *return_obj = NULL;
ACPI_OPERAND_OBJECT *object_ptr = NULL;
u32 buffer_space_needed;
u32 user_buffer_length;
u32 count;
u32 i;
u32 param_length;
u32 object_length;
/*
* If there are parameters to be passed to the object
* (which must be a control method), the external objects
* must be converted to internal objects
*/
if (param_objects && param_objects->count) {
/*
* Allocate a new parameter block for the internal objects
* Add 1 to count to allow for null terminated internal list
*/
count = param_objects->count;
param_length = (count + 1) * sizeof (void *);
object_length = count * sizeof (ACPI_OPERAND_OBJECT);
param_ptr = acpi_cm_callocate (param_length + /* Parameter List part */
object_length); /* Actual objects */
if (!param_ptr) {
return (AE_NO_MEMORY);
}
object_ptr = (ACPI_OPERAND_OBJECT *) ((u8 *) param_ptr +
param_length);
/*
* Init the param array of pointers and NULL terminate
* the list
*/
for (i = 0; i < count; i++) {
param_ptr[i] = &object_ptr[i];
acpi_cm_init_static_object (&object_ptr[i]);
}
param_ptr[count] = NULL;
/*
* Convert each external object in the list to an
* internal object
*/
for (i = 0; i < count; i++) {
status =
acpi_cm_build_internal_object (¶m_objects->pointer[i],
param_ptr[i]);
if (ACPI_FAILURE (status)) {
acpi_cm_delete_internal_object_list (param_ptr);
return (status);
}
}
}
/*
* Three major cases:
* 1) Fully qualified pathname
* 2) No handle, not fully qualified pathname (error)
* 3) Valid handle
*/
if ((pathname) &&
(acpi_ns_valid_root_prefix (pathname[0])))
{
/*
* The path is fully qualified, just evaluate by name
*/
status = acpi_ns_evaluate_by_name (pathname, param_ptr, &return_obj);
}
else if (!handle) {
/*
* A handle is optional iff a fully qualified pathname
* is specified. Since we've already handled fully
* qualified names above, this is an error
*/
status = AE_BAD_PARAMETER;
}
else {
/*
* We get here if we have a handle -- and if we have a
* pathname it is relative. The handle will be validated
* in the lower procedures
*/
if (!pathname) {
/*
* The null pathname case means the handle is for
* the actual object to be evaluated
*/
status = acpi_ns_evaluate_by_handle (handle, param_ptr, &return_obj);
}
else {
/*
* Both a Handle and a relative Pathname
*/
status = acpi_ns_evaluate_relative (handle, pathname, param_ptr,
&return_obj);
}
}
/*
* If we are expecting a return value, and all went well above,
* copy the return value to an external object.
*/
if (return_buffer) {
user_buffer_length = return_buffer->length;
return_buffer->length = 0;
if (return_obj) {
if (VALID_DESCRIPTOR_TYPE (return_obj, ACPI_DESC_TYPE_NAMED)) {
/*
* If we got an Node as a return object,
* this means the object we are evaluating
* has nothing interesting to return (such
* as a mutex, etc.) We return an error
* because these types are essentially
* unsupported by this interface. We
* don't check up front because this makes
* it easier to add support for various
* types at a later date if necessary.
*/
status = AE_TYPE;
return_obj = NULL; /* No need to delete an Node */
}
if (ACPI_SUCCESS (status)) {
/*
* Find out how large a buffer is needed
* to contain the returned object
*/
status = acpi_cm_get_object_size (return_obj,
&buffer_space_needed);
if (ACPI_SUCCESS (status)) {
/*
* Check if there is enough room in the
* caller's buffer
*/
if (user_buffer_length < buffer_space_needed) {
/*
* Caller's buffer is too small, can't
* give him partial results fail the call
* but return the buffer size needed
*/
return_buffer->length = buffer_space_needed;
status = AE_BUFFER_OVERFLOW;
}
else {
/*
* We have enough space for the object, build it
*/
status = acpi_cm_build_external_object (return_obj,
return_buffer);
return_buffer->length = buffer_space_needed;
}
}
}
}
}
/* Delete the return and parameter objects */
if (return_obj) {
/*
* Delete the internal return object. (Or at least
* decrement the reference count by one)
*/
acpi_cm_remove_reference (return_obj);
}
/*
* Free the input parameter list (if we created one),
*/
if (param_ptr) {
/* Free the allocated parameter block */
acpi_cm_delete_internal_object_list (param_ptr);
}
return (status);
}
ACPI_STATUS
acpi_ns_init_one_device (
ACPI_HANDLE obj_handle,
u32 nesting_level,
void *context,
void **return_value)
{
ACPI_STATUS status;
ACPI_NAMESPACE_NODE *node;
u32 flags;
ACPI_DEVICE_WALK_INFO *info = (ACPI_DEVICE_WALK_INFO *) context;
info->device_count++;
acpi_cm_acquire_mutex (ACPI_MTX_NAMESPACE);
node = acpi_ns_convert_handle_to_entry (obj_handle);
if (!node) {
acpi_cm_release_mutex (ACPI_MTX_NAMESPACE);
return (AE_BAD_PARAMETER);
}
acpi_cm_release_mutex (ACPI_MTX_NAMESPACE);
/*
* Run _STA to determine if we can run _INI on the device.
*/
status = acpi_cm_execute_STA (node, &flags);
if (ACPI_FAILURE (status)) {
return (status);
}
info->num_STA++;
if (!(flags & 0x01)) {
/* don't look at children of a not present device */
return(AE_CTRL_DEPTH);
}
/*
* The device is present. Run _INI.
*/
status = acpi_ns_evaluate_relative (obj_handle, "_INI", NULL, NULL);
if (AE_NOT_FOUND == status) {
/* No _INI means device requires no initialization */
status = AE_OK;
}
else if (ACPI_FAILURE (status)) {
return (status);
}
else {
info->num_INI++;
}
return (status);
}