Esempio n. 1
0
/*******************************************************************************
 *
 * FUNCTION:    acpi_set_firmware_waking_vector
 *
 * PARAMETERS:  physical_address    - Physical address of ACPI real mode
 *                                    entry point.
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Access function for the firmware_waking_vector field in FACS
 *
 ******************************************************************************/
acpi_status
acpi_set_firmware_waking_vector(acpi_physical_address physical_address)
{
	struct acpi_table_facs *facs;
	acpi_status status;

	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);

	/* Get the FACS */

	status =
	    acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
				    (struct acpi_table_header **)&facs);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Set the vector */

	if ((facs->length < 32) || (!(facs->xfirmware_waking_vector))) {
		/*
		 * ACPI 1.0 FACS or short table or optional X_ field is zero
		 */
		facs->firmware_waking_vector = (u32) physical_address;
	} else {
		/*
		 * ACPI 2.0 FACS with valid X_ field
		 */
		facs->xfirmware_waking_vector = physical_address;
	}

	return_ACPI_STATUS(AE_OK);
}
Esempio n. 2
0
acpi_status acpi_ev_init_global_lock_handler(void)
{
	acpi_status status;

	ACPI_FUNCTION_TRACE(ev_init_global_lock_handler);

	status =
	    acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
				    (struct acpi_table_header **)&facs);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	acpi_gbl_global_lock_present = TRUE;
	status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL,
						  acpi_ev_global_lock_handler,
						  NULL);

	/*
	 * If the global lock does not exist on this platform, the attempt
	 * to enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick)
	 * Map to AE_OK, but mark global lock as not present.
	 * Any attempt to actually use the global lock will be flagged
	 * with an error.
	 */
	if (status == AE_NO_HARDWARE_RESPONSE) {
		ACPI_ERROR((AE_INFO,
			    "No response from Global Lock hardware, disabling lock"));

		acpi_gbl_global_lock_present = FALSE;
		status = AE_OK;
	}

	return_ACPI_STATUS(status);
}
Esempio n. 3
0
File: dsinit.c Progetto: PyroOS/Pyro
acpi_status
acpi_ds_initialize_objects(acpi_native_uint table_index,
			   struct acpi_namespace_node * start_node)
{
	acpi_status status;
	struct acpi_init_walk_info info;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(ds_initialize_objects);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
			  "**** Starting initialization of namespace objects ****\n"));
	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:"));

	info.method_count = 0;
	info.op_region_count = 0;
	info.object_count = 0;
	info.device_count = 0;
	info.table_index = table_index;
	info.owner_id = owner_id;

	/* Walk entire namespace from the supplied root */

	status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
				     acpi_ds_init_one_object, &info, NULL);
	if (ACPI_FAILURE(status)) {
		ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
	}

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
			      "\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n",
			      table->signature, owner_id, info.object_count,
			      info.device_count, info.method_count,
			      info.op_region_count));

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
			  "%hd Methods, %hd Regions\n", info.method_count,
			  info.op_region_count));

	return_ACPI_STATUS(AE_OK);
}
acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
{
	acpi_status status = AE_OK;
	union acpi_operand_object *table_desc = ddb_handle;
	u32 table_index;
	struct acpi_table_header *table;

	ACPI_FUNCTION_TRACE(ex_unload_table);

	/*
	 * Validate the handle
	 * Although the handle is partially validated in acpi_ex_reconfiguration(),
	 * when it calls acpi_ex_resolve_operands(), the handle is more completely
	 * validated here.
	 */
	if ((!ddb_handle) ||
	    (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) ||
	    (ACPI_GET_OBJECT_TYPE(ddb_handle) != ACPI_TYPE_LOCAL_REFERENCE)) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	/* Get the table index from the ddb_handle (acpi_size for 64-bit case) */

	table_index = (u32) (acpi_size) table_desc->reference.object;

	/* Invoke table handler if present */

	if (acpi_gbl_table_handler) {
		status = acpi_get_table_by_index(table_index, &table);
		if (ACPI_SUCCESS(status)) {
			(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD,
						     table,
						     acpi_gbl_table_handler_context);
		}
	}

	/*
	 * Delete the entire namespace under this table Node
	 * (Offset contains the table_id)
	 */
	acpi_tb_delete_namespace_by_owner(table_index);
	(void)acpi_tb_release_owner_id(table_index);

	acpi_tb_set_table_loaded_flag(table_index, FALSE);

	/* Table unloaded, remove a reference to the ddb_handle object */

	acpi_ut_remove_reference(ddb_handle);
	return_ACPI_STATUS(AE_OK);
}
Esempio n. 5
0
acpi_status
acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
{
	struct acpi_table_header *table;
	acpi_status status;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(tb_load_table);

	/*
	 * Note: Now table is "INSTALLED", it must be validated before
	 * using.
	 */
	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	status = acpi_ns_load_table(table_index, parent_node);

	/*
	 * This case handles the legacy option that groups all module-level
	 * code blocks together and defers execution until all of the tables
	 * are loaded. Execute all of these blocks at this time.
	 * Execute any module-level code that was detected during the table
	 * load phase.
	 *
	 * Note: this option is deprecated and will be eliminated in the
	 * future. Use of this option can cause problems with AML code that
	 * depends upon in-order immediate execution of module-level code.
	 */
	acpi_ns_exec_module_code_list();

	/*
	 * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
	 * responsible for discovering any new wake GPEs by running _PRW methods
	 * that may have been loaded by this table.
	 */
	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_SUCCESS(status)) {
		acpi_ev_update_gpes(owner_id);
	}

	/* Invoke table handler */

	acpi_tb_notify_table(ACPI_TABLE_EVENT_LOAD, table);
	return_ACPI_STATUS(status);
}
Esempio n. 6
0
File: tbdata.c Progetto: Luwak/linux
acpi_status
acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
{
	struct acpi_table_header *table;
	acpi_status status;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(tb_load_table);

	/*
	 * Note: Now table is "INSTALLED", it must be validated before
	 * using.
	 */
	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	status = acpi_ns_load_table(table_index, parent_node);

	/* Execute any module-level code that was found in the table */

	if (!acpi_gbl_parse_table_as_term_list
	    && acpi_gbl_group_module_level_code) {
		acpi_ns_exec_module_code_list();
	}

	/*
	 * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
	 * responsible for discovering any new wake GPEs by running _PRW methods
	 * that may have been loaded by this table.
	 */
	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_SUCCESS(status)) {
		acpi_ev_update_gpes(owner_id);
	}

	/* Invoke table handler if present */

	if (acpi_gbl_table_handler) {
		(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
					     acpi_gbl_table_handler_context);
	}

	return_ACPI_STATUS(status);
}
Esempio n. 7
0
/*******************************************************************************
 *
 * FUNCTION:    ns_one_complete_parse
 *
 * PARAMETERS:  pass_number             - 1 or 2
 *              table_desc              - The table to be parsed.
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Perform one complete parse of an ACPI/AML table.
 *
 ******************************************************************************/
acpi_status
acpi_ns_one_complete_parse(u32 pass_number,
			   u32 table_index,
			   struct acpi_namespace_node *start_node)
{
	union acpi_parse_object *parse_root;
	acpi_status status;
       u32 aml_length;
	u8 *aml_start;
	struct acpi_walk_state *walk_state;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(ns_one_complete_parse);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Create and init a Root Node */

	parse_root = acpi_ps_create_scope_op();
	if (!parse_root) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/* Create and initialize a new walk state */

	walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL);
	if (!walk_state) {
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(status);
	}

	/* Table must consist of at least a complete header */

	if (table->length < sizeof(struct acpi_table_header)) {
		status = AE_BAD_HEADER;
	} else {
		aml_start = (u8 *) table + sizeof(struct acpi_table_header);
		aml_length = table->length - sizeof(struct acpi_table_header);
		status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
					       aml_start, aml_length, NULL,
					       (u8) pass_number);
	}

	/* Found OSDT table, enable the namespace override feature */

	if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT) &&
	    pass_number == ACPI_IMODE_LOAD_PASS1) {
		walk_state->namespace_override = TRUE;
	}

	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		goto cleanup;
	}

	/* start_node is the default location to load the table */

	if (start_node && start_node != acpi_gbl_root_node) {
		status =
		    acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD,
					     walk_state);
		if (ACPI_FAILURE(status)) {
			acpi_ds_delete_walk_state(walk_state);
			goto cleanup;
		}
	}

	/* Parse the AML */

	ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %u parse\n",
			  pass_number));
	status = acpi_ps_parse_aml(walk_state);

cleanup:
	acpi_ps_delete_parse_tree(parse_root);
	return_ACPI_STATUS(status);
}
Esempio n. 8
0
acpi_status
acpi_ds_initialize_objects(u32 table_index,
			   struct acpi_namespace_node *start_node)
{
	acpi_status status;
	struct acpi_init_walk_info info;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(ds_initialize_objects);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
			  "**** Starting initialization of namespace objects ****\n"));

	/* Set all init info to zero */

	memset(&info, 0, sizeof(struct acpi_init_walk_info));

	info.owner_id = owner_id;
	info.table_index = table_index;

	/* Walk entire namespace from the supplied root */

	/*
	 * We don't use acpi_walk_namespace since we do not want to acquire
	 * the namespace reader lock.
	 */
	status =
	    acpi_ns_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
				   ACPI_NS_WALK_NO_UNLOCK,
				   acpi_ds_init_one_object, NULL, &info, NULL);
	if (ACPI_FAILURE(status)) {
		ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
	}

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* DSDT is always the first AML table */

	if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT)) {
		ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
				      "\nInitializing Namespace objects:\n"));
	}

	/* Summary of objects initialized */

	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
			      "Table [%4.4s: %-8.8s] (id %.2X) - %4u Objects with %3u Devices, "
			      "%3u Regions, %4u Methods (%u/%u/%u Serial/Non/Cvt)\n",
			      table->signature, table->oem_table_id, owner_id,
			      info.object_count, info.device_count,
			      info.op_region_count, info.method_count,
			      info.serial_method_count,
			      info.non_serial_method_count,
			      info.serialized_method_count));

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "%u Methods, %u Regions\n",
			  info.method_count, info.op_region_count));

	return_ACPI_STATUS(AE_OK);
}
acpi_status
acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
				   union acpi_parse_object *op)
{
	acpi_status status;
	union acpi_operand_object *obj_desc;
	union acpi_operand_object **operand;
	struct acpi_namespace_node *node;
	union acpi_parse_object *next_op;
	u32 table_index;
	struct acpi_table_header *table;

	ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op);

	/*
	 * This is where we evaluate the Signature string, oem_id string,
	 * and oem_table_id string of the Data Table Region declaration
	 */
	node = op->common.node;

	/* next_op points to Signature string op */

	next_op = op->common.value.arg;

	/*
	 * Evaluate/create the Signature string, oem_id string,
	 * and oem_table_id string operands
	 */
	status = acpi_ds_create_operands(walk_state, next_op);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/*
	 * Resolve the Signature string, oem_id string,
	 * and oem_table_id string operands
	 */
	status = acpi_ex_resolve_operands(op->common.aml_opcode,
					  ACPI_WALK_OPERANDS, walk_state);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	operand = &walk_state->operands[0];

	/* Find the ACPI table */

	status = acpi_tb_find_table(operand[0]->string.pointer,
				    operand[1]->string.pointer,
				    operand[2]->string.pointer, &table_index);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	acpi_ut_remove_reference(operand[0]);
	acpi_ut_remove_reference(operand[1]);
	acpi_ut_remove_reference(operand[2]);

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	obj_desc = acpi_ns_get_attached_object(node);
	if (!obj_desc) {
		return_ACPI_STATUS(AE_NOT_EXIST);
	}

	obj_desc->region.address = ACPI_PTR_TO_PHYSADDR(table);
	obj_desc->region.length = table->length;

	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
			  obj_desc,
			  ACPI_FORMAT_UINT64(obj_desc->region.address),
			  obj_desc->region.length));

	/* Now the address and length are valid for this opregion */

	obj_desc->region.flags |= AOPOBJ_DATA_VALID;

	return_ACPI_STATUS(status);
}
Esempio n. 10
0
File: dsinit.c Progetto: 08opt/linux
acpi_status
acpi_ds_initialize_objects(u32 table_index,
			   struct acpi_namespace_node * start_node)
{
	acpi_status status;
	struct acpi_init_walk_info info;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(ds_initialize_objects);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
			  "**** Starting initialization of namespace objects ****\n"));
	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:"));

	/* Set all init info to zero */

	ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));

	info.owner_id = owner_id;
	info.table_index = table_index;

	/* Walk entire namespace from the supplied root */

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/*
	 * We don't use acpi_walk_namespace since we do not want to acquire
	 * the namespace reader lock.
	 */
	status =
	    acpi_ns_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
				   ACPI_NS_WALK_UNLOCK, acpi_ds_init_one_object,
				   NULL, &info, NULL);
	if (ACPI_FAILURE(status)) {
		ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
	}
	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
			      "\nTable [%4.4s](id %4.4X) - %u Objects with %u Devices %u Methods %u Regions\n",
			      table->signature, owner_id, info.object_count,
			      info.device_count, info.method_count,
			      info.op_region_count));

	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
			  "%u Methods, %u Regions\n", info.method_count,
			  info.op_region_count));

	return_ACPI_STATUS(AE_OK);
}
Esempio n. 11
0
acpi_status
acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
		      union acpi_operand_object **return_desc)
{
	acpi_status status;
	union acpi_operand_object **operand = &walk_state->operands[0];
	struct acpi_namespace_node *parent_node;
	struct acpi_namespace_node *start_node;
	struct acpi_namespace_node *parameter_node = NULL;
	union acpi_operand_object *ddb_handle;
	struct acpi_table_header *table;
	u32 table_index;

	ACPI_FUNCTION_TRACE(ex_load_table_op);

	/* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */

	if ((operand[0]->string.length > ACPI_NAME_SIZE) ||
	    (operand[1]->string.length > ACPI_OEM_ID_SIZE) ||
	    (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	/* Find the ACPI table in the RSDT/XSDT */

	status = acpi_tb_find_table(operand[0]->string.pointer,
				    operand[1]->string.pointer,
				    operand[2]->string.pointer, &table_index);
	if (ACPI_FAILURE(status)) {
		if (status != AE_NOT_FOUND) {
			return_ACPI_STATUS(status);
		}

		/* Table not found, return an Integer=0 and AE_OK */

		ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
		if (!ddb_handle) {
			return_ACPI_STATUS(AE_NO_MEMORY);
		}

		ddb_handle->integer.value = 0;
		*return_desc = ddb_handle;

		return_ACPI_STATUS(AE_OK);
	}

	/* Default nodes */

	start_node = walk_state->scope_info->scope.node;
	parent_node = acpi_gbl_root_node;

	/* root_path (optional parameter) */

	if (operand[3]->string.length > 0) {
		/*
		 * Find the node referenced by the root_path_string. This is the
		 * location within the namespace where the table will be loaded.
		 */
		status =
		    acpi_ns_get_node(start_node, operand[3]->string.pointer,
				     ACPI_NS_SEARCH_PARENT, &parent_node);
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}
	}

	/* parameter_path (optional parameter) */

	if (operand[4]->string.length > 0) {
		if ((operand[4]->string.pointer[0] != '\\') &&
		    (operand[4]->string.pointer[0] != '^')) {
			/*
			 * Path is not absolute, so it will be relative to the node
			 * referenced by the root_path_string (or the NS root if omitted)
			 */
			start_node = parent_node;
		}

		/* Find the node referenced by the parameter_path_string */

		status =
		    acpi_ns_get_node(start_node, operand[4]->string.pointer,
				     ACPI_NS_SEARCH_PARENT, &parameter_node);
		if (ACPI_FAILURE(status)) {
			return_ACPI_STATUS(status);
		}
	}

	/* Load the table into the namespace */

	status = acpi_ex_add_table(table_index, parent_node, &ddb_handle);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Parameter Data (optional) */

	if (parameter_node) {

		/* Store the parameter data into the optional parameter object */

		status = acpi_ex_store(operand[5],
				       ACPI_CAST_PTR(union acpi_operand_object,
						     parameter_node),
				       walk_state);
		if (ACPI_FAILURE(status)) {
			(void)acpi_ex_unload_table(ddb_handle);
			return_ACPI_STATUS(status);
		}
	}

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_SUCCESS(status)) {
		ACPI_INFO((AE_INFO,
			   "Dynamic OEM Table Load - [%.4s] OemId [%.6s] OemTableId [%.8s]",
			   table->signature, table->oem_id,
			   table->oem_table_id));
	}

	/* Invoke table handler if present */

	if (acpi_gbl_table_handler) {
		(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
					     acpi_gbl_table_handler_context);
	}

	*return_desc = ddb_handle;
	return_ACPI_STATUS(status);
}
/*******************************************************************************
 *
 * FUNCTION:    ns_execute_table
 *
 * PARAMETERS:  table_desc      - An ACPI table descriptor for table to parse
 *              start_node      - Where to enter the table into the namespace
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Load ACPI/AML table by executing the entire table as a
 *              term_list.
 *
 ******************************************************************************/
acpi_status
acpi_ns_execute_table(u32 table_index, struct acpi_namespace_node *start_node)
{
	acpi_status status;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;
	struct acpi_evaluate_info *info = NULL;
	u32 aml_length;
	u8 *aml_start;
	union acpi_operand_object *method_obj = NULL;

	ACPI_FUNCTION_TRACE(ns_execute_table);

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Table must consist of at least a complete header */

	if (table->length < sizeof(struct acpi_table_header)) {
		return_ACPI_STATUS(AE_BAD_HEADER);
	}

	aml_start = (u8 *)table + sizeof(struct acpi_table_header);
	aml_length = table->length - sizeof(struct acpi_table_header);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Create, initialize, and link a new temporary method object */

	method_obj = acpi_ut_create_internal_object(ACPI_TYPE_METHOD);
	if (!method_obj) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/* Allocate the evaluation information block */

	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
	if (!info) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
			  "Create table code block: %p\n", method_obj));

	method_obj->method.aml_start = aml_start;
	method_obj->method.aml_length = aml_length;
	method_obj->method.owner_id = owner_id;
	method_obj->method.info_flags |= ACPI_METHOD_MODULE_LEVEL;

	info->pass_number = ACPI_IMODE_EXECUTE;
	info->node = start_node;
	info->obj_desc = method_obj;
	info->node_flags = info->node->flags;
	info->full_pathname = acpi_ns_get_normalized_pathname(info->node, TRUE);
	if (!info->full_pathname) {
		status = AE_NO_MEMORY;
		goto cleanup;
	}

	status = acpi_ps_execute_table(info);

cleanup:
	if (info) {
		ACPI_FREE(info->full_pathname);
		info->full_pathname = NULL;
	}
	ACPI_FREE(info);
	acpi_ut_remove_reference(method_obj);
	return_ACPI_STATUS(status);
}
Esempio n. 13
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/*******************************************************************************
 *
 * FUNCTION:    ns_one_complete_parse
 *
 * PARAMETERS:  pass_number             - 1 or 2
 *              table_desc              - The table to be parsed.
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Perform one complete parse of an ACPI/AML table.
 *
 ******************************************************************************/
acpi_status
acpi_ns_one_complete_parse(u32 pass_number,
			   u32 table_index,
			   struct acpi_namespace_node *start_node)
{
	union acpi_parse_object *parse_root;
	acpi_status status;
       u32 aml_length;
	u8 *aml_start;
	struct acpi_walk_state *walk_state;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(ns_one_complete_parse);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Create and init a Root Node */

	parse_root = acpi_ps_create_scope_op();
	if (!parse_root) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/* Create and initialize a new walk state */

	walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL);
	if (!walk_state) {
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(status);
	}

	/* Table must consist of at least a complete header */

	if (table->length < sizeof(struct acpi_table_header)) {
		status = AE_BAD_HEADER;
	} else {
		aml_start = (u8 *) table + sizeof(struct acpi_table_header);
		aml_length = table->length - sizeof(struct acpi_table_header);
		status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
					       aml_start, aml_length, NULL,
					       (u8) pass_number);
	}

	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		goto cleanup;
	}

	/* start_node is the default location to load the table */

	if (start_node && start_node != acpi_gbl_root_node) {
		status =
		    acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD,
					     walk_state);
		if (ACPI_FAILURE(status)) {
			acpi_ds_delete_walk_state(walk_state);
			goto cleanup;
		}
	}

	/* Parse the AML */

<<<<<<< HEAD
Esempio n. 14
0
acpi_status
acpi_ns_one_complete_parse(u32 pass_number,
			   u32 table_index,
			   struct acpi_namespace_node *start_node)
{
	union acpi_parse_object *parse_root;
	acpi_status status;
       u32 aml_length;
	u8 *aml_start;
	struct acpi_walk_state *walk_state;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(ns_one_complete_parse);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/*                             */

	parse_root = acpi_ps_create_scope_op();
	if (!parse_root) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/*                                        */

	walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL);
	if (!walk_state) {
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(status);
	}

	/*                                                  */

	if (table->length < sizeof(struct acpi_table_header)) {
		status = AE_BAD_HEADER;
	} else {
		aml_start = (u8 *) table + sizeof(struct acpi_table_header);
		aml_length = table->length - sizeof(struct acpi_table_header);
		status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
					       aml_start, aml_length, NULL,
					       (u8) pass_number);
	}

	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		goto cleanup;
	}

	/*                                                      */

	if (start_node && start_node != acpi_gbl_root_node) {
		status =
		    acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD,
					     walk_state);
		if (ACPI_FAILURE(status)) {
			acpi_ds_delete_walk_state(walk_state);
			goto cleanup;
		}
	}

	/*               */

	ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %u parse\n",
			  pass_number));
	status = acpi_ps_parse_aml(walk_state);

      cleanup:
	acpi_ps_delete_parse_tree(parse_root);
	return_ACPI_STATUS(status);
}
Esempio n. 15
0
/*******************************************************************************
 *
 * FUNCTION:    ns_one_complete_parse
 *
 * PARAMETERS:  pass_number             - 1 or 2
 *              table_desc              - The table to be parsed.
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Perform one complete parse of an ACPI/AML table.
 *
 ******************************************************************************/
acpi_status
acpi_ns_one_complete_parse(acpi_native_uint pass_number,
			   acpi_native_uint table_index)
{
	union acpi_parse_object *parse_root;
	acpi_status status;
	acpi_native_uint aml_length;
	u8 *aml_start;
	struct acpi_walk_state *walk_state;
	struct acpi_table_header *table;
	acpi_owner_id owner_id;

	ACPI_FUNCTION_TRACE(ns_one_complete_parse);

	status = acpi_tb_get_owner_id(table_index, &owner_id);
	if (ACPI_FAILURE(status)) {
		return_ACPI_STATUS(status);
	}

	/* Create and init a Root Node */

	parse_root = acpi_ps_create_scope_op();
	if (!parse_root) {
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	/* Create and initialize a new walk state */

	walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL);
	if (!walk_state) {
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(AE_NO_MEMORY);
	}

	status = acpi_get_table_by_index(table_index, &table);
	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		acpi_ps_free_op(parse_root);
		return_ACPI_STATUS(status);
	}

	/* Table must consist of at least a complete header */

	if (table->length < sizeof(struct acpi_table_header)) {
		status = AE_BAD_HEADER;
	} else {
		aml_start = (u8 *) table + sizeof(struct acpi_table_header);
		aml_length = table->length - sizeof(struct acpi_table_header);
		status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
					       aml_start, aml_length, NULL,
					       (u8) pass_number);
	}

	if (ACPI_FAILURE(status)) {
		acpi_ds_delete_walk_state(walk_state);
		acpi_ps_delete_parse_tree(parse_root);
		return_ACPI_STATUS(status);
	}

	/* Parse the AML */

	ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %d parse\n",
			  (unsigned)pass_number));
	status = acpi_ps_parse_aml(walk_state);

	acpi_ps_delete_parse_tree(parse_root);
	return_ACPI_STATUS(status);
}