patch-2.4.22 linux-2.4.22/drivers/acpi/utilities/utxface.c

• Lines: 544
• Date: 2003-08-25 04:44:41.000000000 -0700
• Orig file: linux-2.4.21/drivers/acpi/utilities/utxface.c
• Orig date: 2001-10-24 14:06:22.000000000 -0700

diff -urN linux-2.4.21/drivers/acpi/utilities/utxface.c linux-2.4.22/drivers/acpi/utilities/utxface.c
@@ -1,46 +1,61 @@
 /******************************************************************************
  *
  * Module Name: utxface - External interfaces for "global" ACPI functions
- *              $Revision: 82 $
  *
  *****************************************************************************/
 
 /*
- *  Copyright (C) 2000, 2001 R. Byron Moore
+ * Copyright (C) 2000 - 2003, R. Byron Moore
+ * All rights reserved.
  *
- *  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
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
  */
 
 
-#include "acpi.h"
-#include "acevents.h"
-#include "achware.h"
-#include "acnamesp.h"
-#include "acinterp.h"
-#include "amlcode.h"
-#include "acdebug.h"
-#include "acexcep.h"
-
+#include <acpi/acpi.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+#include <acpi/acdebug.h>
 
 #define _COMPONENT          ACPI_UTILITIES
-	 MODULE_NAME         ("utxface")
+	 ACPI_MODULE_NAME    ("utxface")
 
 
 /*******************************************************************************
  *
- * FUNCTION:    Acpi_initialize_subsystem
+ * FUNCTION:    acpi_initialize_subsystem
  *
  * PARAMETERS:  None
  *
@@ -55,12 +70,12 @@
 acpi_initialize_subsystem (
 	void)
 {
-	acpi_status             status;
+	acpi_status                     status;
 
-	FUNCTION_TRACE ("Acpi_initialize_subsystem");
+	ACPI_FUNCTION_TRACE ("acpi_initialize_subsystem");
 
 
-	DEBUG_EXEC(acpi_ut_init_stack_ptr_trace ());
+	ACPI_DEBUG_EXEC (acpi_ut_init_stack_ptr_trace ());
 
 
 	/* Initialize all globals used by the subsystem */
@@ -71,7 +86,7 @@
 
 	status = acpi_os_initialize ();
 	if (ACPI_FAILURE (status)) {
-		REPORT_ERROR (("OSD failed to initialize, %s\n",
+		ACPI_REPORT_ERROR (("OSD failed to initialize, %s\n",
 			acpi_format_exception (status)));
 		return_ACPI_STATUS (status);
 	}
@@ -80,7 +95,7 @@
 
 	status = acpi_ut_mutex_initialize ();
 	if (ACPI_FAILURE (status)) {
-		REPORT_ERROR (("Global mutex creation failure, %s\n",
+		ACPI_REPORT_ERROR (("Global mutex creation failure, %s\n",
 			acpi_format_exception (status)));
 		return_ACPI_STATUS (status);
 	}
@@ -92,7 +107,7 @@
 
 	status = acpi_ns_root_initialize ();
 	if (ACPI_FAILURE (status)) {
-		REPORT_ERROR (("Namespace initialization failure, %s\n",
+		ACPI_REPORT_ERROR (("Namespace initialization failure, %s\n",
 			acpi_format_exception (status)));
 		return_ACPI_STATUS (status);
 	}
@@ -100,7 +115,7 @@
 
 	/* If configured, initialize the AML debugger */
 
-	DEBUGGER_EXEC (acpi_db_initialize ());
+	ACPI_DEBUGGER_EXEC (status = acpi_db_initialize ());
 
 	return_ACPI_STATUS (status);
 }
@@ -108,7 +123,7 @@
 
 /*******************************************************************************
  *
- * FUNCTION:    Acpi_enable_subsystem
+ * FUNCTION:    acpi_enable_subsystem
  *
  * PARAMETERS:  Flags           - Init/enable Options
  *
@@ -121,37 +136,17 @@
 
 acpi_status
 acpi_enable_subsystem (
-	u32                     flags)
+	u32                             flags)
 {
-	acpi_status             status = AE_OK;
-
-
-	FUNCTION_TRACE ("Acpi_enable_subsystem");
-
+	acpi_status                     status = AE_OK;
 
-	/* Sanity check the FADT for valid values */
 
-	status = acpi_ut_validate_fadt ();
-	if (ACPI_FAILURE (status)) {
-		return_ACPI_STATUS (status);
-	}
+	ACPI_FUNCTION_TRACE ("acpi_enable_subsystem");
 
-	/*
-	 * Install the default Op_region handlers. These are
-	 * installed unless other handlers have already been
-	 * installed via the Install_address_space_handler interface
-	 */
-	if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Installing default address space handlers\n"));
-
-		status = acpi_ev_install_default_address_space_handlers ();
-		if (ACPI_FAILURE (status)) {
-			return_ACPI_STATUS (status);
-		}
-	}
 
 	/*
 	 * We must initialize the hardware before we can enable ACPI.
+	 * The values from the FADT are validated here.
 	 */
 	if (!(flags & ACPI_NO_HARDWARE_INIT)) {
 		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI hardware\n"));
@@ -163,21 +158,24 @@
 	}
 
 	/*
-	 * Enable ACPI on this platform
+	 * Enable ACPI mode
 	 */
 	if (!(flags & ACPI_NO_ACPI_ENABLE)) {
 		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
 
+		acpi_gbl_original_mode = acpi_hw_get_mode();
+
 		status = acpi_enable ();
 		if (ACPI_FAILURE (status)) {
-			ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Acpi_enable failed.\n"));
+			ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "acpi_enable failed.\n"));
 			return_ACPI_STATUS (status);
 		}
 	}
 
 	/*
-	 * Note:
-	 * We must have the hardware AND events initialized before we can execute
+	 * Initialize ACPI Event handling
+	 *
+	 * NOTE: We must have the hardware AND events initialized before we can execute
 	 * ANY control methods SAFELY.  Any control method can require ACPI hardware
 	 * support, so the hardware MUST be initialized before execution!
 	 */
@@ -190,25 +188,65 @@
 		}
 	}
 
+	/* Install the SCI handler, Global Lock handler, and GPE handlers */
+
+	if (!(flags & ACPI_NO_HANDLER_INIT)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Installing SCI/GL/GPE handlers\n"));
+
+		status = acpi_ev_handler_initialize ();
+		if (ACPI_FAILURE (status)) {
+			return_ACPI_STATUS (status);
+		}
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_initialize_objects
+ *
+ * PARAMETERS:  Flags           - Init/enable Options
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Completes namespace initialization by initializing device
+ *              objects and executing AML code for Regions, buffers, etc.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_initialize_objects (
+	u32                             flags)
+{
+	acpi_status                     status = AE_OK;
+
+
+	ACPI_FUNCTION_TRACE ("acpi_initialize_objects");
+
 
 	/*
-	 * Initialize all device objects in the namespace
-	 * This runs the _STA and _INI methods.
+	 * Install the default op_region handlers. These are installed unless
+	 * other handlers have already been installed via the
+	 * install_address_space_handler interface.
+	 *
+	 * NOTE: This will cause _REG methods to be run.  Any objects accessed
+	 * by the _REG methods will be automatically initialized, even if they
+	 * contain executable AML (see call to acpi_ns_initialize_objects below).
 	 */
-	if (!(flags & ACPI_NO_DEVICE_INIT)) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI Devices\n"));
+	if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Installing default address space handlers\n"));
 
-		status = acpi_ns_initialize_devices ();
+		status = acpi_ev_init_address_spaces ();
 		if (ACPI_FAILURE (status)) {
 			return_ACPI_STATUS (status);
 		}
 	}
 
-
 	/*
 	 * Initialize the objects that remain uninitialized.  This
-	 * runs the executable AML that is part of the declaration of Op_regions
-	 * and Fields.
+	 * runs the executable AML that may be part of the declaration of these
+	 * objects: operation_regions, buffer_fields, Buffers, and Packages.
 	 */
 	if (!(flags & ACPI_NO_OBJECT_INIT)) {
 		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI Objects\n"));
@@ -219,15 +257,34 @@
 		}
 	}
 
-	acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
+	/*
+	 * Initialize all device objects in the namespace
+	 * This runs the _STA and _INI methods.
+	 */
+	if (!(flags & ACPI_NO_DEVICE_INIT)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Initializing ACPI Devices\n"));
 
+		status = acpi_ns_initialize_devices ();
+		if (ACPI_FAILURE (status)) {
+			return_ACPI_STATUS (status);
+		}
+	}
+
+	/*
+	 * Empty the caches (delete the cached objects) on the assumption that
+	 * the table load filled them up more than they will be at runtime --
+	 * thus wasting non-paged memory.
+	 */
+	status = acpi_purge_cached_objects ();
+
+	acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
 	return_ACPI_STATUS (status);
 }
 
 
 /*******************************************************************************
  *
- * FUNCTION:    Acpi_terminate
+ * FUNCTION:    acpi_terminate
  *
  * PARAMETERS:  None
  *
@@ -240,16 +297,15 @@
 acpi_status
 acpi_terminate (void)
 {
-	FUNCTION_TRACE ("Acpi_terminate");
+	acpi_status                 status;
 
 
-	/* Terminate the AML Debugger if present */
+	ACPI_FUNCTION_TRACE ("acpi_terminate");
 
-	DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
 
-	/* TBD: [Investigate] This is no longer needed?*/
-/*    Acpi_ut_release_mutex (ACPI_MTX_DEBUG_CMD_READY); */
+	/* Terminate the AML Debugger if present */
 
+	ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
 
 	/* Shutdown and free all resources */
 
@@ -261,7 +317,7 @@
 	acpi_ut_mutex_terminate ();
 
 
-#ifdef ENABLE_DEBUGGER
+#ifdef ACPI_DEBUGGER
 
 	/* Shut down the debugger */
 
@@ -270,16 +326,14 @@
 
 	/* Now we can shutdown the OS-dependent layer */
 
-	acpi_os_terminate ();
-
-
-	return_ACPI_STATUS (AE_OK);
+	status = acpi_os_terminate ();
+	return_ACPI_STATUS (status);
 }
 
 
 /*****************************************************************************
  *
- * FUNCTION:    Acpi_subsystem_status
+ * FUNCTION:    acpi_subsystem_status
  *
  * PARAMETERS:  None
  *
@@ -305,65 +359,62 @@
 
 /******************************************************************************
  *
- * FUNCTION:    Acpi_get_system_info
+ * FUNCTION:    acpi_get_system_info
  *
- * PARAMETERS:  Out_buffer      - a pointer to a buffer to receive the
+ * PARAMETERS:  out_buffer      - a pointer to a buffer to receive the
  *                                resources for the device
- *              Buffer_length   - the number of bytes available in the buffer
+ *              buffer_length   - the number of bytes available in the buffer
  *
  * RETURN:      Status          - the status of the call
  *
  * DESCRIPTION: This function is called to get information about the current
  *              state of the ACPI subsystem.  It will return system information
- *              in the Out_buffer.
+ *              in the out_buffer.
  *
  *              If the function fails an appropriate status will be returned
- *              and the value of Out_buffer is undefined.
+ *              and the value of out_buffer is undefined.
  *
  ******************************************************************************/
 
 acpi_status
 acpi_get_system_info (
-	acpi_buffer             *out_buffer)
+	struct acpi_buffer              *out_buffer)
 {
-	acpi_system_info        *info_ptr;
-	u32                     i;
+	struct acpi_system_info         *info_ptr;
+	u32                             i;
+	acpi_status                     status;
 
 
-	FUNCTION_TRACE ("Acpi_get_system_info");
+	ACPI_FUNCTION_TRACE ("acpi_get_system_info");
 
 
-	/*
-	 *  Must have a valid buffer
-	 */
-	if ((!out_buffer)         ||
-		(!out_buffer->pointer)) {
-		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	/* Parameter validation */
+
+	status = acpi_ut_validate_buffer (out_buffer);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
 	}
 
-	if (out_buffer->length < sizeof (acpi_system_info)) {
-		/*
-		 *  Caller's buffer is too small
-		 */
-		out_buffer->length = sizeof (acpi_system_info);
+	/* Validate/Allocate/Clear caller buffer */
 
-		return_ACPI_STATUS (AE_BUFFER_OVERFLOW);
+	status = acpi_ut_initialize_buffer (out_buffer, sizeof (struct acpi_system_info));
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
 	}
 
-
 	/*
-	 *  Set return length and get data
+	 * Populate the return buffer
 	 */
-	out_buffer->length = sizeof (acpi_system_info);
-	info_ptr = (acpi_system_info *) out_buffer->pointer;
+	info_ptr = (struct acpi_system_info *) out_buffer->pointer;
 
 	info_ptr->acpi_ca_version   = ACPI_CA_VERSION;
 
 	/* System flags (ACPI capabilities) */
 
-	info_ptr->flags             = acpi_gbl_system_flags;
+	info_ptr->flags             = ACPI_SYS_MODE_ACPI;
 
 	/* Timer resolution - 24 or 32 bits  */
+
 	if (!acpi_gbl_FADT) {
 		info_ptr->timer_resolution = 0;
 	}
@@ -386,12 +437,70 @@
 
 	/* Current status of the ACPI tables, per table type */
 
-	info_ptr->num_table_types = NUM_ACPI_TABLES;
-	for (i = 0; i < NUM_ACPI_TABLES; i++) {
-		info_ptr->table_info[i].count = acpi_gbl_acpi_tables[i].count;
+	info_ptr->num_table_types = NUM_ACPI_TABLE_TYPES;
+	for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) {
+		info_ptr->table_info[i].count = acpi_gbl_table_lists[i].count;
 	}
 
 	return_ACPI_STATUS (AE_OK);
 }
 
 
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_install_initialization_handler
+ *
+ * PARAMETERS:  Handler             - Callback procedure
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install an initialization handler
+ *
+ * TBD: When a second function is added, must save the Function also.
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_install_initialization_handler (
+	acpi_init_handler               handler,
+	u32                             function)
+{
+
+	if (!handler) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	if (acpi_gbl_init_handler) {
+		return (AE_ALREADY_EXISTS);
+	}
+
+	acpi_gbl_init_handler = handler;
+	return AE_OK;
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_purge_cached_objects
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Empty all caches (delete the cached objects)
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_purge_cached_objects (void)
+{
+	ACPI_FUNCTION_TRACE ("acpi_purge_cached_objects");
+
+
+	acpi_ut_delete_generic_state_cache ();
+	acpi_ut_delete_object_cache ();
+	acpi_ds_delete_walk_state_cache ();
+	acpi_ps_delete_parse_cache ();
+
+	return_ACPI_STATUS (AE_OK);
+}