Exemple #1
0
acpi_status
acpi_ns_handle_to_pathname(acpi_handle target_handle,
			   struct acpi_buffer * buffer)
{
	acpi_status status;
	struct acpi_namespace_node *node;
	acpi_size required_size;

	ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);

	node = acpi_ns_map_handle_to_node(target_handle);
	if (!node) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	/* Determine size required for the caller buffer */

	required_size = acpi_ns_get_pathname_length(node);

	/* Validate/Allocate/Clear caller buffer */

	status = acpi_ut_initialize_buffer(buffer, required_size);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Build the path in the caller buffer */

	acpi_ns_build_external_path(node, required_size, buffer->pointer);

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n",
			  (char *)buffer->pointer, (u32) required_size));
	return_ACPI_STATUS(AE_OK);
}
Exemple #2
0
char *
acpi_ns_get_external_pathname (
	struct acpi_namespace_node      *node)
{
	char                            *name_buffer;
	acpi_size                       size;


	ACPI_FUNCTION_TRACE_PTR ("ns_get_external_pathname", node);


	/* Calculate required buffer size based on depth below root */

	size = acpi_ns_get_pathname_length (node);

	/* Allocate a buffer to be returned to caller */

	name_buffer = ACPI_MEM_CALLOCATE (size);
	if (!name_buffer) {
		ACPI_REPORT_ERROR (("ns_get_table_pathname: allocation failure\n"));
		return_PTR (NULL);
	}

	/* Build the path in the allocated buffer */

	acpi_ns_build_external_path (node, size, name_buffer);
	return_PTR (name_buffer);
}
Exemple #3
0
char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
{
	acpi_status status;
	char *name_buffer;
	acpi_size size;

	ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);

	/* Calculate required buffer size based on depth below root */

	size = acpi_ns_get_pathname_length(node);
	if (!size) {
		return_PTR(NULL);
	}

	/* Allocate a buffer to be returned to caller */

	name_buffer = ACPI_ALLOCATE_ZEROED(size);
	if (!name_buffer) {
		ACPI_ERROR((AE_INFO, "Could not allocate %u bytes", (u32)size));
		return_PTR(NULL);
	}

	/* Build the path in the allocated buffer */

	status = acpi_ns_build_external_path(node, size, name_buffer);
	if (ACPI_FAILURE(status)) {
		ACPI_FREE(name_buffer);
		return_PTR(NULL);
	}

	return_PTR(name_buffer);
}
char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
{
	acpi_status status;
	char *name_buffer;
	acpi_size size;

	ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);

	

	size = acpi_ns_get_pathname_length(node);
	if (!size) {
		return_PTR(NULL);
	}

	

	name_buffer = ACPI_ALLOCATE_ZEROED(size);
	if (!name_buffer) {
		ACPI_ERROR((AE_INFO, "Could not allocate %u bytes", (u32)size));
		return_PTR(NULL);
	}

	

	status = acpi_ns_build_external_path(node, size, name_buffer);
	if (ACPI_FAILURE(status)) {
		ACPI_FREE(name_buffer);
		return_PTR(NULL);
	}

	return_PTR(name_buffer);
}
acpi_status
acpi_ns_handle_to_pathname(acpi_handle target_handle,
			   struct acpi_buffer * buffer)
{
	acpi_status status;
	struct acpi_namespace_node *node;
	acpi_size required_size;

	ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);

	node = acpi_ns_validate_handle(target_handle);
	if (!node) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	

	required_size = acpi_ns_get_pathname_length(node);
	if (!required_size) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	

	status = acpi_ut_initialize_buffer(buffer, required_size);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	

	status =
	    acpi_ns_build_external_path(node, required_size, buffer->pointer);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n",
			  (char *)buffer->pointer, (u32) required_size));
	return_ACPI_STATUS(AE_OK);
}
Exemple #6
0
static acpi_status
acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
			       acpi_size * obj_length)
{
	acpi_size length;
	acpi_size size;
	acpi_status status = AE_OK;

	ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);

	
	if (!internal_object) {
		*obj_length = sizeof(union acpi_object);
		return_ACPI_STATUS(AE_OK);
	}

	

	length = sizeof(union acpi_object);

	if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {

		

		*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
		return_ACPI_STATUS(status);
	}

	
	switch (internal_object->common.type) {
	case ACPI_TYPE_STRING:

		length += (acpi_size) internal_object->string.length + 1;
		break;

	case ACPI_TYPE_BUFFER:

		length += (acpi_size) internal_object->buffer.length;
		break;

	case ACPI_TYPE_INTEGER:
	case ACPI_TYPE_PROCESSOR:
	case ACPI_TYPE_POWER:

		

		break;

	case ACPI_TYPE_LOCAL_REFERENCE:

		switch (internal_object->reference.class) {
		case ACPI_REFCLASS_NAME:

			
			size =
			    acpi_ns_get_pathname_length(internal_object->
							reference.node);
			if (!size) {
				return_ACPI_STATUS(AE_BAD_PARAMETER);
			}

			length += ACPI_ROUND_UP_TO_NATIVE_WORD(size);
			break;

		default:

			
			ACPI_ERROR((AE_INFO,
				    "Cannot convert to external object - "
				    "unsupported Reference Class [%s] %X in object %p",
				    acpi_ut_get_reference_name(internal_object),
				    internal_object->reference.class,
				    internal_object));
			status = AE_TYPE;
			break;
		}
		break;

	default:

		ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
			    "unsupported type [%s] %X in object %p",
			    acpi_ut_get_object_type_name(internal_object),
			    internal_object->common.type, internal_object));
		status = AE_TYPE;
		break;
	}

	
	*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
	return_ACPI_STATUS(status);
}
Exemple #7
0
static acpi_status
acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
			       acpi_size * obj_length)
{
	acpi_size length;
	acpi_status status = AE_OK;

	ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);

	/*
	 * Handle a null object (Could be a uninitialized package
	 * element -- which is legal)
	 */
	if (!internal_object) {
		*obj_length = sizeof(union acpi_object);
		return_ACPI_STATUS(AE_OK);
	}

	/* Start with the length of the Acpi object */

	length = sizeof(union acpi_object);

	if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {

		/* Object is a named object (reference), just return the length */

		*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
		return_ACPI_STATUS(status);
	}

	/*
	 * The final length depends on the object type
	 * Strings and Buffers are packed right up against the parent object and
	 * must be accessed bytewise or there may be alignment problems on
	 * certain processors
	 */
	switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
	case ACPI_TYPE_STRING:

		length += (acpi_size) internal_object->string.length + 1;
		break;

	case ACPI_TYPE_BUFFER:

		length += (acpi_size) internal_object->buffer.length;
		break;

	case ACPI_TYPE_INTEGER:
	case ACPI_TYPE_PROCESSOR:
	case ACPI_TYPE_POWER:

		/* No extra data for these types */

		break;

	case ACPI_TYPE_LOCAL_REFERENCE:

		switch (internal_object->reference.opcode) {
		case AML_INT_NAMEPATH_OP:

			/*
			 * Get the actual length of the full pathname to this object.
			 * The reference will be converted to the pathname to the object
			 */
			length +=
			    ACPI_ROUND_UP_TO_NATIVE_WORD
			    (acpi_ns_get_pathname_length
			     (internal_object->reference.node));
			break;

		default:

			/*
			 * No other reference opcodes are supported.
			 * Notably, Locals and Args are not supported, but this may be
			 * required eventually.
			 */
			ACPI_ERROR((AE_INFO,
				    "Unsupported Reference opcode=%X in object %p",
				    internal_object->reference.opcode,
				    internal_object));
			status = AE_TYPE;
			break;
		}
		break;

	default:

		ACPI_ERROR((AE_INFO, "Unsupported type=%X in object %p",
			    ACPI_GET_OBJECT_TYPE(internal_object),
			    internal_object));
		status = AE_TYPE;
		break;
	}

	/*
	 * Account for the space required by the object rounded up to the next
	 * multiple of the machine word size.  This keeps each object aligned
	 * on a machine word boundary. (preventing alignment faults on some
	 * machines.)
	 */
	*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
	return_ACPI_STATUS(status);
}
acpi_status
acpi_ns_handle_to_pathname (
	acpi_handle             target_handle,
	u32                     *buf_size,
	NATIVE_CHAR             *user_buffer)
{
	acpi_status             status = AE_OK;
	acpi_namespace_node     *node;
	u32                     path_length;
	u32                     user_buf_size;
	acpi_name               name;
	u32                     size;


	FUNCTION_TRACE_PTR ("Ns_handle_to_pathname", target_handle);


	if (!acpi_gbl_root_node) {
		/*
		 * If the name space has not been initialized,
		 * this function should not have been called.
		 */
		return_ACPI_STATUS (AE_NO_NAMESPACE);
	}

	node = acpi_ns_map_handle_to_node (target_handle);
	if (!node) {
		return_ACPI_STATUS (AE_BAD_PARAMETER);
	}


	/* Set return length to the required path length */

	path_length = acpi_ns_get_pathname_length (node);
	size = path_length - 1;

	user_buf_size = *buf_size;
	*buf_size = path_length;

	/* Check if the user buffer is sufficiently large */

	if (path_length > user_buf_size) {
		status = AE_BUFFER_OVERFLOW;
		goto exit;
	}

	/* Store null terminator */

	user_buffer[size] = 0;
	size -= ACPI_NAME_SIZE;

	/* Put the original ACPI name at the end of the path */

	MOVE_UNALIGNED32_TO_32 ((user_buffer + size),
			 &node->name);

	user_buffer[--size] = PATH_SEPARATOR;

	/* Build name backwards, putting "." between segments */

	while ((size > ACPI_NAME_SIZE) && node) {
		size -= ACPI_NAME_SIZE;
		name = acpi_ns_find_parent_name (node);
		MOVE_UNALIGNED32_TO_32 ((user_buffer + size), &name);

		user_buffer[--size] = PATH_SEPARATOR;
		node = acpi_ns_get_parent_object (node);
	}

	/*
	 * Overlay the "." preceding the first segment with
	 * the root name "\"
	 */
	user_buffer[size] = '\\';

	ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Len=%X, %s \n", path_length, user_buffer));

exit:
	return_ACPI_STATUS (status);
}
Exemple #9
0
acpi_status
acpi_rs_calculate_pci_routing_table_length (
	acpi_operand_object     *package_object,
	u32                     *buffer_size_needed)
{
	u32                     number_of_elements;
	u32                     temp_size_needed = 0;
	acpi_operand_object     **top_object_list;
	u32                     index;
	acpi_operand_object     *package_element;
	acpi_operand_object     **sub_object_list;
	u8                      name_found;
	u32                     table_index;


	FUNCTION_TRACE ("Rs_calculate_pci_routing_table_length");


	number_of_elements = package_object->package.count;

	/*
	 * Calculate the size of the return buffer.
	 * The base size is the number of elements * the sizes of the
	 * structures.  Additional space for the strings is added below.
	 * The minus one is to subtract the size of the u8 Source[1]
	 * member because it is added below.
	 *
	 * But each PRT_ENTRY structure has a pointer to a string and
	 * the size of that string must be found.
	 */
	top_object_list = package_object->package.elements;

	for (index = 0; index < number_of_elements; index++) {
		/*
		 * Dereference the sub-package
		 */
		package_element = *top_object_list;

		/*
		 * The Sub_object_list will now point to an array of the
		 * four IRQ elements: Address, Pin, Source and Source_index
		 */
		sub_object_list = package_element->package.elements;

		/*
		 * Scan the Irq_table_elements for the Source Name String
		 */
		name_found = FALSE;

		for (table_index = 0; table_index < 4 && !name_found; table_index++) {
			if ((ACPI_TYPE_STRING == (*sub_object_list)->common.type) ||
				((INTERNAL_TYPE_REFERENCE == (*sub_object_list)->common.type) &&
					((*sub_object_list)->reference.opcode == AML_INT_NAMEPATH_OP))) {
				name_found = TRUE;
			}

			else {
				/*
				 * Look at the next element
				 */
				sub_object_list++;
			}
		}

		temp_size_needed += (sizeof (pci_routing_table) - 4);

		/*
		 * Was a String type found?
		 */
		if (TRUE == name_found) {
			if (ACPI_TYPE_STRING == (*sub_object_list)->common.type) {
				/*
				 * The length String.Length field includes the
				 * terminating NULL
				 */
				temp_size_needed += (*sub_object_list)->string.length;
			}

			else {
				temp_size_needed += acpi_ns_get_pathname_length (
						   (*sub_object_list)->reference.node);
			}
		}

		else {
			/*
			 * If no name was found, then this is a NULL, which is
			 * translated as a u32 zero.
			 */
			temp_size_needed += sizeof (u32);
		}

		/* Round up the size since each element must be aligned */

		temp_size_needed = ROUND_UP_TO_64_bITS (temp_size_needed);

		/*
		 * Point to the next acpi_operand_object
		 */
		top_object_list++;
	}


	/*
	 * Adding an extra element to the end of the list, essentially a NULL terminator
	 */
	*buffer_size_needed = temp_size_needed + sizeof (pci_routing_table);
	return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_ut_get_simple_object_size (
	acpi_operand_object     *internal_object,
	u32                     *obj_length)
{
	u32                     length;
	acpi_status             status = AE_OK;


	FUNCTION_TRACE_PTR ("Ut_get_simple_object_size", internal_object);


	/* Handle a null object (Could be a uninitialized package element -- which is legal) */

	if (!internal_object) {
		*obj_length = 0;
		return_ACPI_STATUS (AE_OK);
	}


	/* Start with the length of the Acpi object */

	length = sizeof (acpi_object);

	if (VALID_DESCRIPTOR_TYPE (internal_object, ACPI_DESC_TYPE_NAMED)) {
		/* Object is a named object (reference), just return the length */

		*obj_length = (u32) ROUND_UP_TO_NATIVE_WORD (length);
		return_ACPI_STATUS (status);
	}


	/*
	 * The final length depends on the object type
	 * Strings and Buffers are packed right up against the parent object and
	 * must be accessed bytewise or there may be alignment problems on
	 * certain processors
	 */

	switch (internal_object->common.type) {

	case ACPI_TYPE_STRING:

		length += internal_object->string.length + 1;
		break;


	case ACPI_TYPE_BUFFER:

		length += internal_object->buffer.length;
		break;


	case ACPI_TYPE_INTEGER:
	case ACPI_TYPE_PROCESSOR:
	case ACPI_TYPE_POWER:

		/*
		 * No extra data for these types
		 */
		break;


	case INTERNAL_TYPE_REFERENCE:

		/*
		 * The only type that should be here is internal opcode NAMEPATH_OP -- since
		 * this means an object reference
		 */
		if (internal_object->reference.opcode != AML_INT_NAMEPATH_OP) {
			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
				"Unsupported Reference opcode=%X in object %p\n",
				internal_object->reference.opcode, internal_object));
			status = AE_TYPE;
		}

		else {
			/*
			 * Get the actual length of the full pathname to this object.
			 * The reference will be converted to the pathname to the object
			 */
			length += ROUND_UP_TO_NATIVE_WORD (acpi_ns_get_pathname_length (internal_object->reference.node));
		}
		break;


	default:

		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unsupported type=%X in object %p\n",
			internal_object->common.type, internal_object));
		status = AE_TYPE;
		break;
	}


	/*
	 * Account for the space required by the object rounded up to the next
	 * multiple of the machine word size.  This keeps each object aligned
	 * on a machine word boundary. (preventing alignment faults on some
	 * machines.)
	 */
	*obj_length = (u32) ROUND_UP_TO_NATIVE_WORD (length);

	return_ACPI_STATUS (status);
}
static acpi_status
acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
			       acpi_size * obj_length)
{
	acpi_size length;
	acpi_size size;
	acpi_status status = AE_OK;

	ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);

	/* Start with the length of the (external) Acpi object */

	length = sizeof(union acpi_object);

	/* A NULL object is allowed, can be a legal uninitialized package element */

	if (!internal_object) {
	/*
		 * Object is NULL, just return the length of union acpi_object
		 * (A NULL union acpi_object is an object of all zeroes.)
	 */
		*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
		return_ACPI_STATUS(AE_OK);
	}

	/* A Namespace Node should never appear here */

	if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {

		/* A namespace node should never get here */

		return_ACPI_STATUS(AE_AML_INTERNAL);
	}

	/*
	 * The final length depends on the object type
	 * Strings and Buffers are packed right up against the parent object and
	 * must be accessed bytewise or there may be alignment problems on
	 * certain processors
	 */
	switch (internal_object->common.type) {
	case ACPI_TYPE_STRING:

		length += (acpi_size) internal_object->string.length + 1;
		break;

	case ACPI_TYPE_BUFFER:

		length += (acpi_size) internal_object->buffer.length;
		break;

	case ACPI_TYPE_INTEGER:
	case ACPI_TYPE_PROCESSOR:
	case ACPI_TYPE_POWER:

		/* No extra data for these types */

		break;

	case ACPI_TYPE_LOCAL_REFERENCE:

		switch (internal_object->reference.class) {
		case ACPI_REFCLASS_NAME:
			/*
			 * Get the actual length of the full pathname to this object.
			 * The reference will be converted to the pathname to the object
			 */
			size =
			    acpi_ns_get_pathname_length(internal_object->
							reference.node);
			if (!size) {
				return_ACPI_STATUS(AE_BAD_PARAMETER);
			}

			length += ACPI_ROUND_UP_TO_NATIVE_WORD(size);
			break;

		default:
			/*
			 * No other reference opcodes are supported.
			 * Notably, Locals and Args are not supported, but this may be
			 * required eventually.
			 */
			ACPI_ERROR((AE_INFO,
				    "Cannot convert to external object - "
				    "unsupported Reference Class [%s] 0x%X in object %p",
				    acpi_ut_get_reference_name(internal_object),
				    internal_object->reference.class,
				    internal_object));
			status = AE_TYPE;
			break;
		}
		break;

	default:

		ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
			    "unsupported type [%s] 0x%X in object %p",
			    acpi_ut_get_object_type_name(internal_object),
			    internal_object->common.type, internal_object));
		status = AE_TYPE;
		break;
	}

	/*
	 * Account for the space required by the object rounded up to the next
	 * multiple of the machine word size. This keeps each object aligned
	 * on a machine word boundary. (preventing alignment faults on some
	 * machines.)
	 */
	*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
	return_ACPI_STATUS(status);
}