patch-2.4.6 linux/drivers/acpi/interpreter/amconfig.c

• Lines: 307
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.5/linux/drivers/acpi/interpreter/amconfig.c
• Orig date: Mon Jan 22 13:23:42 2001

diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/interpreter/amconfig.c linux/drivers/acpi/interpreter/amconfig.c
@@ -1,306 +0,0 @@
-/******************************************************************************
- *
- * Module Name: amconfig - Namespace reconfiguration (Load/Unload opcodes)
- *              $Revision: 29 $
- *
- *****************************************************************************/
-
-/*
- *  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 "actables.h"
-#include "acdispat.h"
-
-
-#define _COMPONENT          INTERPRETER
-	 MODULE_NAME         ("amconfig")
-
-
-/*****************************************************************************
- *
- * FUNCTION:    Acpi_aml_exec_load_table
- *
- * PARAMETERS:  Rgn_desc        - Op region where the table will be obtained
- *              Ddb_handle      - Where a handle to the table will be returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Load an ACPI table
- *
- ****************************************************************************/
-
-static ACPI_STATUS
-acpi_aml_exec_load_table (
-	ACPI_OPERAND_OBJECT     *rgn_desc,
-	ACPI_HANDLE             *ddb_handle)
-{
-	ACPI_STATUS             status;
-	ACPI_OPERAND_OBJECT     *table_desc = NULL;
-	u8                      *table_ptr;
-	u8                      *table_data_ptr;
-	ACPI_TABLE_HEADER       table_header;
-	ACPI_TABLE_DESC         table_info;
-	u32                     i;
-
-
-	/* TBD: [Unhandled] Object can be either a field or an opregion */
-
-
-	/* Get the table header */
-
-	table_header.length = 0;
-	for (i = 0; i < sizeof (ACPI_TABLE_HEADER); i++) {
-		status = acpi_ev_address_space_dispatch (rgn_desc, ADDRESS_SPACE_READ,
-				   (ACPI_PHYSICAL_ADDRESS) i, 8,
-				   (u32 *) ((u8 *) &table_header + i));
-		if (ACPI_FAILURE (status)) {
-			return (status);
-		}
-	}
-
-	/* Allocate a buffer for the entire table */
-
-	table_ptr = acpi_cm_allocate (table_header.length);
-	if (!table_ptr) {
-		return (AE_NO_MEMORY);
-	}
-
-	/* Copy the header to the buffer */
-
-	MEMCPY (table_ptr, &table_header, sizeof (ACPI_TABLE_HEADER));
-	table_data_ptr = table_ptr + sizeof (ACPI_TABLE_HEADER);
-
-
-	/* Get the table from the op region */
-
-	for (i = 0; i < table_header.length; i++) {
-		status = acpi_ev_address_space_dispatch (rgn_desc, ADDRESS_SPACE_READ,
-				   (ACPI_PHYSICAL_ADDRESS)i, 8,
-				   (u32 *) (table_data_ptr + i));
-		if (ACPI_FAILURE (status)) {
-			goto cleanup;
-		}
-	}
-
-
-	/* Table must be either an SSDT or a PSDT */
-
-	if ((!STRNCMP (table_header.signature,
-			  acpi_gbl_acpi_table_data[ACPI_TABLE_PSDT].signature,
-			  acpi_gbl_acpi_table_data[ACPI_TABLE_PSDT].sig_length)) &&
-		(!STRNCMP (table_header.signature,
-				 acpi_gbl_acpi_table_data[ACPI_TABLE_SSDT].signature,
-				 acpi_gbl_acpi_table_data[ACPI_TABLE_SSDT].sig_length)))
-	{
-		status = AE_BAD_SIGNATURE;
-		goto cleanup;
-	}
-
-	/* Create an object to be the table handle */
-
-	table_desc = acpi_cm_create_internal_object (INTERNAL_TYPE_REFERENCE);
-	if (!table_desc) {
-		status = AE_NO_MEMORY;
-		goto cleanup;
-	}
-
-
-	/* Install the new table into the local data structures */
-
-	table_info.pointer     = (ACPI_TABLE_HEADER *) table_ptr;
-	table_info.length      = table_header.length;
-	table_info.allocation  = ACPI_MEM_ALLOCATED;
-	table_info.base_pointer = table_ptr;
-
-	status = acpi_tb_install_table (NULL, &table_info);
-	if (ACPI_FAILURE (status)) {
-		goto cleanup;
-	}
-
-	/* Add the table to the namespace */
-
-	/* TBD: [Restructure] - change to whatever new interface is appropriate */
-/*
-	Status = Acpi_load_namespace ();
-	if (ACPI_FAILURE (Status)) {
-*/
-		/* TBD: [Errors] Unload the table on failure ? */
-/*
-		goto Cleanup;
-	}
-*/
-
-
-	/* TBD: [Investigate] we need a pointer to the table desc */
-
-	/* Init the table handle */
-
-	table_desc->reference.op_code = AML_LOAD_OP;
-	table_desc->reference.object = table_info.installed_desc;
-
-	*ddb_handle = table_desc;
-
-	return (status);
-
-
-cleanup:
-
-	acpi_cm_free (table_desc);
-	acpi_cm_free (table_ptr);
-	return (status);
-
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION:    Acpi_aml_exec_unload_table
- *
- * PARAMETERS:  Ddb_handle          - Handle to a previously loaded table
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Unload an ACPI table
- *
- ****************************************************************************/
-
-static ACPI_STATUS
-acpi_aml_exec_unload_table (
-	ACPI_HANDLE             ddb_handle)
-{
-	ACPI_STATUS             status = AE_NOT_IMPLEMENTED;
-	ACPI_OPERAND_OBJECT     *table_desc = (ACPI_OPERAND_OBJECT *) ddb_handle;
-	ACPI_TABLE_DESC         *table_info;
-
-
-	/* Validate the handle */
-	/* Although the handle is partially validated in Acpi_aml_exec_reconfiguration(),
-	 *  when it calls Acpi_aml_resolve_operands(), the handle is more completely
-	 *  validated here.
-	 */
-
-	if ((!ddb_handle) ||
-		(!VALID_DESCRIPTOR_TYPE (ddb_handle, ACPI_DESC_TYPE_INTERNAL)) ||
-		(((ACPI_OPERAND_OBJECT  *)ddb_handle)->common.type !=
-				INTERNAL_TYPE_REFERENCE))
-	{
-		return (AE_BAD_PARAMETER);
-	}
-
-
-	/* Get the actual table descriptor from the Ddb_handle */
-
-	table_info = (ACPI_TABLE_DESC *) table_desc->reference.object;
-
-	/*
-	 * Delete the entire namespace under this table Node
-	 * (Offset contains the Table_id)
-	 */
-
-	status = acpi_ns_delete_namespace_by_owner (table_info->table_id);
-	if (ACPI_FAILURE (status)) {
-		return (status);
-	}
-
-	/* Delete the table itself */
-
-	acpi_tb_uninstall_table (table_info->installed_desc);
-
-	/* Delete the table descriptor (Ddb_handle) */
-
-	acpi_cm_remove_reference (table_desc);
-
-	return (status);
-}
-
-
-/*****************************************************************************
- *
- * FUNCTION:    Acpi_aml_exec_reconfiguration
- *
- * PARAMETERS:  Opcode              - The opcode to be executed
- *              Walk_state          - Current state of the parse tree walk
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Reconfiguration opcodes such as LOAD and UNLOAD
- *
- ****************************************************************************/
-
-ACPI_STATUS
-acpi_aml_exec_reconfiguration (
-	u16                     opcode,
-	ACPI_WALK_STATE         *walk_state)
-{
-	ACPI_STATUS             status;
-	ACPI_OPERAND_OBJECT     *region_desc = NULL;
-	ACPI_HANDLE             *ddb_handle;
-
-
-	/* Resolve the operands */
-
-	status = acpi_aml_resolve_operands (opcode, WALK_OPERANDS, walk_state);
-	/* Get the table handle, common for both opcodes */
-
-	status |= acpi_ds_obj_stack_pop_object ((ACPI_OPERAND_OBJECT **) &ddb_handle,
-			 walk_state);
-
-	switch (opcode)
-	{
-
-	case AML_LOAD_OP:
-
-		/* Get the region or field descriptor */
-
-		status |= acpi_ds_obj_stack_pop_object (&region_desc, walk_state);
-		if (ACPI_FAILURE (status)) {
-			acpi_cm_remove_reference (region_desc);
-			return (status);
-		}
-
-		status = acpi_aml_exec_load_table (region_desc, ddb_handle);
-		break;
-
-
-	case AML_UNLOAD_OP:
-
-		if (ACPI_FAILURE (status)) {
-			return (status);
-		}
-
-		status = acpi_aml_exec_unload_table (ddb_handle);
-		break;
-
-
-	default:
-
-		status = AE_AML_BAD_OPCODE;
-		break;
-	}
-
-
-	return (status);
-}
-