patch-2.4.6 linux/drivers/acpi/interpreter/amcreate.c
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- Lines: 723
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.5/linux/drivers/acpi/interpreter/amcreate.c
- Orig date:
Mon Jan 22 13:23:42 2001
diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/interpreter/amcreate.c linux/drivers/acpi/interpreter/amcreate.c
@@ -1,722 +0,0 @@
-/******************************************************************************
- *
- * Module Name: amcreate - Named object creation
- * $Revision: 53 $
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000, 2001 R. Byron Moore
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-
-#include "acpi.h"
-#include "acparser.h"
-#include "acinterp.h"
-#include "amlcode.h"
-#include "acnamesp.h"
-#include "acevents.h"
-#include "acdispat.h"
-
-
-#define _COMPONENT INTERPRETER
- MODULE_NAME ("amcreate")
-
-
-/*******************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_field
- *
- * PARAMETERS: Opcode - The opcode to be executed
- * Operands - List of operands for the opcode
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute Create_field operators: Create_bit_field_op,
- * Create_byte_field_op, Create_word_field_op, Create_dWord_field_op,
- * Create_field_op (which define fields in buffers)
- *
- * ALLOCATION: Deletes Create_field_op's count operand descriptor
- *
- *
- * ACPI SPECIFICATION REFERENCES:
- * Def_create_bit_field := Create_bit_field_op Src_buf Bit_idx Name_string
- * Def_create_byte_field := Create_byte_field_op Src_buf Byte_idx Name_string
- * Def_create_dWord_field := Create_dWord_field_op Src_buf Byte_idx Name_string
- * Def_create_field := Create_field_op Src_buf Bit_idx Num_bits Name_string
- * Def_create_word_field := Create_word_field_op Src_buf Byte_idx Name_string
- * Bit_index := Term_arg=>Integer
- * Byte_index := Term_arg=>Integer
- * Num_bits := Term_arg=>Integer
- * Source_buff := Term_arg=>Buffer
- *
- ******************************************************************************/
-
-
-ACPI_STATUS
-acpi_aml_exec_create_field (
- u8 *aml_ptr,
- u32 aml_length,
- ACPI_NAMESPACE_NODE *node,
- ACPI_WALK_STATE *walk_state)
-{
- ACPI_STATUS status;
- ACPI_OPERAND_OBJECT *obj_desc;
- ACPI_OPERAND_OBJECT *tmp_desc;
-
-
- /* Create the region descriptor */
-
- obj_desc = acpi_cm_create_internal_object (ACPI_TYPE_FIELD_UNIT);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Construct the field object */
-
- obj_desc->field_unit.access = (u8) ACCESS_ANY_ACC;
- obj_desc->field_unit.lock_rule = (u8) GLOCK_NEVER_LOCK;
- obj_desc->field_unit.update_rule = (u8) UPDATE_PRESERVE;
-
- /*
- * Allocate a method object for this field unit
- */
-
- obj_desc->field_unit.extra = acpi_cm_create_internal_object (
- INTERNAL_TYPE_EXTRA);
- if (!obj_desc->field_unit.extra) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Remember location in AML stream of the field unit
- * opcode and operands -- since the buffer and index
- * operands must be evaluated.
- */
-
- obj_desc->field_unit.extra->extra.pcode = aml_ptr;
- obj_desc->field_unit.extra->extra.pcode_length = aml_length;
- obj_desc->field_unit.node = node;
-
-
- /*
- * This operation is supposed to cause the destination Name to refer
- * to the defined Field_unit -- it must not store the constructed
- * Field_unit object (or its current value) in some location that the
- * Name may already be pointing to. So, if the Name currently contains
- * a reference which would cause Acpi_aml_exec_store() to perform an indirect
- * store rather than setting the value of the Name itself, clobber that
- * reference before calling Acpi_aml_exec_store().
- */
-
- /* Type of Name's existing value */
-
- switch (acpi_ns_get_type (node))
- {
-
- case ACPI_TYPE_FIELD_UNIT:
-
- case INTERNAL_TYPE_ALIAS:
- case INTERNAL_TYPE_BANK_FIELD:
- case INTERNAL_TYPE_DEF_FIELD:
- case INTERNAL_TYPE_INDEX_FIELD:
-
- tmp_desc = acpi_ns_get_attached_object (node);
- if (tmp_desc) {
- /*
- * There is an existing object here; delete it and zero out the
- * object field within the Node
- */
-
- acpi_cm_remove_reference (tmp_desc);
- acpi_ns_attach_object ((ACPI_NAMESPACE_NODE *) node, NULL,
- ACPI_TYPE_ANY);
- }
-
- /* Set the type to ANY (or the store below will fail) */
-
- ((ACPI_NAMESPACE_NODE *) node)->type = ACPI_TYPE_ANY;
-
- break;
-
-
- default:
-
- break;
- }
-
-
- /* Store constructed field descriptor in result location */
-
- status = acpi_aml_exec_store (obj_desc, (ACPI_OPERAND_OBJECT *) node, walk_state);
-
- /*
- * If the field descriptor was not physically stored (or if a failure
- * above), we must delete it
- */
- if (obj_desc->common.reference_count <= 1) {
- acpi_cm_remove_reference (obj_desc);
- }
-
-
- return (AE_OK);
-
-
-cleanup:
-
- /* Delete region object and method subobject */
-
- if (obj_desc) {
- /* Remove deletes both objects! */
-
- acpi_cm_remove_reference (obj_desc);
- obj_desc = NULL;
- }
-
- return (status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_alias
- *
- * PARAMETERS: Operands - List of operands for the opcode
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new named alias
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_create_alias (
- ACPI_WALK_STATE *walk_state)
-{
- ACPI_NAMESPACE_NODE *source_node;
- ACPI_NAMESPACE_NODE *alias_node;
- ACPI_STATUS status;
-
-
- /* Get the source/alias operands (both NTEs) */
-
- status = acpi_ds_obj_stack_pop_object ((ACPI_OPERAND_OBJECT **) &source_node,
- walk_state);
- if (ACPI_FAILURE (status)) {
- return (status);
- }
-
- /*
- * Don't pop it, it gets removed in the calling routine
- */
-
- alias_node = acpi_ds_obj_stack_get_value (0, walk_state);
-
- /* Add an additional reference to the object */
-
- acpi_cm_add_reference (source_node->object);
-
- /*
- * Attach the original source Node to the new Alias Node.
- */
- status = acpi_ns_attach_object (alias_node, source_node->object,
- source_node->type);
-
-
- /*
- * The new alias assumes the type of the source, but it points
- * to the same object. The reference count of the object has two
- * additional references to prevent deletion out from under either the
- * source or the alias Node
- */
-
- /* Since both operands are NTEs, we don't need to delete them */
-
- return (status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_event
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new event object
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_create_event (
- ACPI_WALK_STATE *walk_state)
-{
- ACPI_STATUS status;
- ACPI_OPERAND_OBJECT *obj_desc;
-
-
- BREAKPOINT3;
-
- obj_desc = acpi_cm_create_internal_object (ACPI_TYPE_EVENT);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Create the actual OS semaphore */
-
- /* TBD: [Investigate] should be created with 0 or 1 units? */
-
- status = acpi_os_create_semaphore (ACPI_NO_UNIT_LIMIT, 1,
- &obj_desc->event.semaphore);
- if (ACPI_FAILURE (status)) {
- acpi_cm_remove_reference (obj_desc);
- goto cleanup;
- }
-
- /* Attach object to the Node */
-
- status = acpi_ns_attach_object (acpi_ds_obj_stack_get_value (0, walk_state),
- obj_desc, (u8) ACPI_TYPE_EVENT);
- if (ACPI_FAILURE (status)) {
- acpi_os_delete_semaphore (obj_desc->event.semaphore);
- acpi_cm_remove_reference (obj_desc);
- goto cleanup;
- }
-
-
-cleanup:
-
- return (status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_mutex
- *
- * PARAMETERS: Interpreter_mode - Current running mode (load1/Load2/Exec)
- * Operands - List of operands for the opcode
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new mutex object
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_create_mutex (
- ACPI_WALK_STATE *walk_state)
-{
- ACPI_STATUS status = AE_OK;
- ACPI_OPERAND_OBJECT *sync_desc;
- ACPI_OPERAND_OBJECT *obj_desc;
-
-
- /* Get the operand */
-
- status = acpi_ds_obj_stack_pop_object (&sync_desc, walk_state);
- if (ACPI_FAILURE (status)) {
- return (status);
- }
-
- /* Attempt to allocate a new object */
-
- obj_desc = acpi_cm_create_internal_object (ACPI_TYPE_MUTEX);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Create the actual OS semaphore */
-
- status = acpi_os_create_semaphore (1, 1, &obj_desc->mutex.semaphore);
- if (ACPI_FAILURE (status)) {
- acpi_cm_remove_reference (obj_desc);
- goto cleanup;
- }
-
- obj_desc->mutex.sync_level = (u8) sync_desc->integer.value;
-
- /* Obj_desc was on the stack top, and the name is below it */
-
- status = acpi_ns_attach_object (acpi_ds_obj_stack_get_value (0, walk_state),
- obj_desc, (u8) ACPI_TYPE_MUTEX);
- if (ACPI_FAILURE (status)) {
- acpi_os_delete_semaphore (obj_desc->mutex.semaphore);
- acpi_cm_remove_reference (obj_desc);
- goto cleanup;
- }
-
-
-cleanup:
-
- /* Always delete the operand */
-
- acpi_cm_remove_reference (sync_desc);
-
- return (status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_region
- *
- * PARAMETERS: Aml_ptr - Pointer to the region declaration AML
- * Aml_length - Max length of the declaration AML
- * Operands - List of operands for the opcode
- * Interpreter_mode - Load1/Load2/Execute
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new operation region object
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_create_region (
- u8 *aml_ptr,
- u32 aml_length,
- u8 region_space,
- ACPI_WALK_STATE *walk_state)
-{
- ACPI_STATUS status;
- ACPI_OPERAND_OBJECT *obj_desc;
- ACPI_NAMESPACE_NODE *node;
-
-
- /*
- * Space ID must be one of the predefined IDs, or in the user-defined
- * range
- */
- if ((region_space >= NUM_REGION_TYPES) &&
- (region_space < USER_REGION_BEGIN))
- {
- REPORT_ERROR (("Invalid Address_space type %X\n", region_space));
- return (AE_AML_INVALID_SPACE_ID);
- }
-
-
- /* Get the Node from the object stack */
-
- node = (ACPI_NAMESPACE_NODE *) acpi_ds_obj_stack_get_value (0, walk_state);
-
- /* Create the region descriptor */
-
- obj_desc = acpi_cm_create_internal_object (ACPI_TYPE_REGION);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Allocate a method object for this region.
- */
-
- obj_desc->region.extra = acpi_cm_create_internal_object (
- INTERNAL_TYPE_EXTRA);
- if (!obj_desc->region.extra) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Remember location in AML stream of address & length
- * operands since they need to be evaluated at run time.
- */
-
- obj_desc->region.extra->extra.pcode = aml_ptr;
- obj_desc->region.extra->extra.pcode_length = aml_length;
-
- /* Init the region from the operands */
-
- obj_desc->region.space_id = region_space;
- obj_desc->region.address = 0;
- obj_desc->region.length = 0;
-
-
- /* Install the new region object in the parent Node */
-
- obj_desc->region.node = node;
-
- status = acpi_ns_attach_object (node, obj_desc,
- (u8) ACPI_TYPE_REGION);
-
- if (ACPI_FAILURE (status)) {
- goto cleanup;
- }
-
- /*
- * If we have a valid region, initialize it
- * Namespace is NOT locked at this point.
- */
-
- status = acpi_ev_initialize_region (obj_desc, FALSE);
-
- if (ACPI_FAILURE (status)) {
- /*
- * If AE_NOT_EXIST is returned, it is not fatal
- * because many regions get created before a handler
- * is installed for said region.
- */
- if (AE_NOT_EXIST == status) {
- status = AE_OK;
- }
- }
-
-cleanup:
-
- if (ACPI_FAILURE (status)) {
- /* Delete region object and method subobject */
-
- if (obj_desc) {
- /* Remove deletes both objects! */
-
- acpi_cm_remove_reference (obj_desc);
- obj_desc = NULL;
- }
- }
-
- return (status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_processor
- *
- * PARAMETERS: Op - Op containing the Processor definition and
- * args
- * Processor_nTE - Node for the containing Node
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new processor object and populate the fields
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_create_processor (
- ACPI_PARSE_OBJECT *op,
- ACPI_HANDLE processor_nTE)
-{
- ACPI_STATUS status;
- ACPI_PARSE_OBJECT *arg;
- ACPI_OPERAND_OBJECT *obj_desc;
-
-
- obj_desc = acpi_cm_create_internal_object (ACPI_TYPE_PROCESSOR);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- return (status);
- }
-
- /* Install the new processor object in the parent Node */
-
- status = acpi_ns_attach_object (processor_nTE, obj_desc,
- (u8) ACPI_TYPE_PROCESSOR);
- if (ACPI_FAILURE (status)) {
- return(status);
- }
-
- arg = op->value.arg;
-
- /* check existence */
-
- if (!arg) {
- status = AE_AML_NO_OPERAND;
- return (status);
- }
-
- /* First arg is the Processor ID */
-
- obj_desc->processor.proc_id = (u8) arg->value.integer;
-
- /* Move to next arg and check existence */
-
- arg = arg->next;
- if (!arg) {
- status = AE_AML_NO_OPERAND;
- return (status);
- }
-
- /* Second arg is the PBlock Address */
-
- obj_desc->processor.address = (ACPI_IO_ADDRESS) arg->value.integer;
-
- /* Move to next arg and check existence */
-
- arg = arg->next;
- if (!arg) {
- status = AE_AML_NO_OPERAND;
- return (status);
- }
-
- /* Third arg is the PBlock Length */
-
- obj_desc->processor.length = (u8) arg->value.integer;
-
- return (AE_OK);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_power_resource
- *
- * PARAMETERS: Op - Op containing the Power_resource definition
- * and args
- * Power_res_nTE - Node for the containing Node
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new Power_resource object and populate the fields
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_create_power_resource (
- ACPI_PARSE_OBJECT *op,
- ACPI_HANDLE power_res_nTE)
-{
- ACPI_STATUS status;
- ACPI_PARSE_OBJECT *arg;
- ACPI_OPERAND_OBJECT *obj_desc;
-
-
- obj_desc = acpi_cm_create_internal_object (ACPI_TYPE_POWER);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- return (status);
- }
-
- /* Install the new power resource object in the parent Node */
-
- status = acpi_ns_attach_object (power_res_nTE, obj_desc,
- (u8) ACPI_TYPE_POWER);
- if (ACPI_FAILURE (status)) {
- return(status);
- }
-
- arg = op->value.arg;
-
- /* check existence */
-
- if (!arg) {
- status = AE_AML_NO_OPERAND;
- return (status);
- }
-
- /* First arg is the System_level */
-
- obj_desc->power_resource.system_level = (u8) arg->value.integer;
-
- /* Move to next arg and check existence */
-
- arg = arg->next;
- if (!arg) {
- status = AE_AML_NO_OPERAND;
- return (status);
- }
-
- /* Second arg is the PBlock Address */
-
- obj_desc->power_resource.resource_order = (u16) arg->value.integer;
-
- return (AE_OK);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION: Acpi_aml_exec_create_method
- *
- * PARAMETERS: Aml_ptr - First byte of the method's AML
- * Aml_length - AML byte count for this method
- * Method_flags - AML method flag byte
- * Method - Method Node
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new method object
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_create_method (
- u8 *aml_ptr,
- u32 aml_length,
- u32 method_flags,
- ACPI_HANDLE method)
-{
- ACPI_OPERAND_OBJECT *obj_desc;
- ACPI_STATUS status;
-
-
- /* Create a new method object */
-
- obj_desc = acpi_cm_create_internal_object (ACPI_TYPE_METHOD);
- if (!obj_desc) {
- return (AE_NO_MEMORY);
- }
-
- /* Get the method's AML pointer/length from the Op */
-
- obj_desc->method.pcode = aml_ptr;
- obj_desc->method.pcode_length = aml_length;
-
- /*
- * First argument is the Method Flags (contains parameter count for the
- * method)
- */
-
- obj_desc->method.method_flags = (u8) method_flags;
- obj_desc->method.param_count = (u8) (method_flags &
- METHOD_FLAGS_ARG_COUNT);
-
- /*
- * Get the concurrency count. If required, a semaphore will be
- * created for this method when it is parsed.
- *
- * TBD: [Future] for APCI 2.0, there will be a Sync_level value, not
- * just a flag
- * Concurrency = Sync_level + 1;.
- */
-
- if (method_flags & METHOD_FLAGS_SERIALIZED) {
- obj_desc->method.concurrency = 1;
- }
-
- else {
- obj_desc->method.concurrency = INFINITE_CONCURRENCY;
- }
-
- /* Attach the new object to the method Node */
-
- status = acpi_ns_attach_object (method, obj_desc, (u8) ACPI_TYPE_METHOD);
- if (ACPI_FAILURE (status)) {
- acpi_cm_delete_object_desc (obj_desc);
- }
-
- return (status);
-}
-
-
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)