|
|
@@ -0,0 +1,379 @@
|
|
|
+/******************************************************************************
|
|
|
+ *
|
|
|
+ * Module Name: utosi - Support for the _OSI predefined control method
|
|
|
+ *
|
|
|
+ *****************************************************************************/
|
|
|
+
|
|
|
+/*
|
|
|
+ * Copyright (C) 2000 - 2010, Intel Corp.
|
|
|
+ * All rights reserved.
|
|
|
+ *
|
|
|
+ * 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/acpi.h>
|
|
|
+#include "accommon.h"
|
|
|
+
|
|
|
+#define _COMPONENT ACPI_UTILITIES
|
|
|
+ACPI_MODULE_NAME("utosi")
|
|
|
+
|
|
|
+/*
|
|
|
+ * Strings supported by the _OSI predefined control method (which is
|
|
|
+ * implemented internally within this module.)
|
|
|
+ *
|
|
|
+ * March 2009: Removed "Linux" as this host no longer wants to respond true
|
|
|
+ * for this string. Basically, the only safe OS strings are windows-related
|
|
|
+ * and in many or most cases represent the only test path within the
|
|
|
+ * BIOS-provided ASL code.
|
|
|
+ *
|
|
|
+ * The last element of each entry is used to track the newest version of
|
|
|
+ * Windows that the BIOS has requested.
|
|
|
+ */
|
|
|
+static struct acpi_interface_info acpi_default_supported_interfaces[] = {
|
|
|
+ /* Operating System Vendor Strings */
|
|
|
+
|
|
|
+ {"Windows 2000", NULL, 0, ACPI_OSI_WIN_2000}, /* Windows 2000 */
|
|
|
+ {"Windows 2001", NULL, 0, ACPI_OSI_WIN_XP}, /* Windows XP */
|
|
|
+ {"Windows 2001 SP1", NULL, 0, ACPI_OSI_WIN_XP_SP1}, /* Windows XP SP1 */
|
|
|
+ {"Windows 2001.1", NULL, 0, ACPI_OSI_WINSRV_2003}, /* Windows Server 2003 */
|
|
|
+ {"Windows 2001 SP2", NULL, 0, ACPI_OSI_WIN_XP_SP2}, /* Windows XP SP2 */
|
|
|
+ {"Windows 2001.1 SP1", NULL, 0, ACPI_OSI_WINSRV_2003_SP1}, /* Windows Server 2003 SP1 - Added 03/2006 */
|
|
|
+ {"Windows 2006", NULL, 0, ACPI_OSI_WIN_VISTA}, /* Windows Vista - Added 03/2006 */
|
|
|
+ {"Windows 2006.1", NULL, 0, ACPI_OSI_WINSRV_2008}, /* Windows Server 2008 - Added 09/2009 */
|
|
|
+ {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1}, /* Windows Vista SP1 - Added 09/2009 */
|
|
|
+ {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */
|
|
|
+
|
|
|
+ /* Feature Group Strings */
|
|
|
+
|
|
|
+ {"Extended Address Space Descriptor", NULL, 0, 0}
|
|
|
+
|
|
|
+ /*
|
|
|
+ * All "optional" feature group strings (features that are implemented
|
|
|
+ * by the host) should be dynamically added by the host via
|
|
|
+ * acpi_install_interface and should not be manually added here.
|
|
|
+ *
|
|
|
+ * Examples of optional feature group strings:
|
|
|
+ *
|
|
|
+ * "Module Device"
|
|
|
+ * "Processor Device"
|
|
|
+ * "3.0 Thermal Model"
|
|
|
+ * "3.0 _SCP Extensions"
|
|
|
+ * "Processor Aggregator Device"
|
|
|
+ */
|
|
|
+};
|
|
|
+
|
|
|
+/*******************************************************************************
|
|
|
+ *
|
|
|
+ * FUNCTION: acpi_ut_initialize_interfaces
|
|
|
+ *
|
|
|
+ * PARAMETERS: None
|
|
|
+ *
|
|
|
+ * RETURN: Status
|
|
|
+ *
|
|
|
+ * DESCRIPTION: Initialize the global _OSI supported interfaces list
|
|
|
+ *
|
|
|
+ ******************************************************************************/
|
|
|
+
|
|
|
+acpi_status acpi_ut_initialize_interfaces(void)
|
|
|
+{
|
|
|
+ u32 i;
|
|
|
+
|
|
|
+ (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
|
|
|
+ acpi_gbl_supported_interfaces = acpi_default_supported_interfaces;
|
|
|
+
|
|
|
+ /* Link the static list of supported interfaces */
|
|
|
+
|
|
|
+ for (i = 0;
|
|
|
+ i < (ACPI_ARRAY_LENGTH(acpi_default_supported_interfaces) - 1);
|
|
|
+ i++) {
|
|
|
+ acpi_default_supported_interfaces[i].next =
|
|
|
+ &acpi_default_supported_interfaces[(acpi_size) i + 1];
|
|
|
+ }
|
|
|
+
|
|
|
+ acpi_os_release_mutex(acpi_gbl_osi_mutex);
|
|
|
+ return (AE_OK);
|
|
|
+}
|
|
|
+
|
|
|
+/*******************************************************************************
|
|
|
+ *
|
|
|
+ * FUNCTION: acpi_ut_interface_terminate
|
|
|
+ *
|
|
|
+ * PARAMETERS: None
|
|
|
+ *
|
|
|
+ * RETURN: None
|
|
|
+ *
|
|
|
+ * DESCRIPTION: Delete all interfaces in the global list. Sets
|
|
|
+ * acpi_gbl_supported_interfaces to NULL.
|
|
|
+ *
|
|
|
+ ******************************************************************************/
|
|
|
+
|
|
|
+void acpi_ut_interface_terminate(void)
|
|
|
+{
|
|
|
+ struct acpi_interface_info *next_interface;
|
|
|
+
|
|
|
+ (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
|
|
|
+ next_interface = acpi_gbl_supported_interfaces;
|
|
|
+
|
|
|
+ while (next_interface) {
|
|
|
+ acpi_gbl_supported_interfaces = next_interface->next;
|
|
|
+
|
|
|
+ /* Only interfaces added at runtime can be freed */
|
|
|
+
|
|
|
+ if (next_interface->flags & ACPI_OSI_DYNAMIC) {
|
|
|
+ ACPI_FREE(next_interface->name);
|
|
|
+ ACPI_FREE(next_interface);
|
|
|
+ }
|
|
|
+
|
|
|
+ next_interface = acpi_gbl_supported_interfaces;
|
|
|
+ }
|
|
|
+
|
|
|
+ acpi_os_release_mutex(acpi_gbl_osi_mutex);
|
|
|
+}
|
|
|
+
|
|
|
+/*******************************************************************************
|
|
|
+ *
|
|
|
+ * FUNCTION: acpi_ut_install_interface
|
|
|
+ *
|
|
|
+ * PARAMETERS: interface_name - The interface to install
|
|
|
+ *
|
|
|
+ * RETURN: Status
|
|
|
+ *
|
|
|
+ * DESCRIPTION: Install the interface into the global interface list.
|
|
|
+ * Caller MUST hold acpi_gbl_osi_mutex
|
|
|
+ *
|
|
|
+ ******************************************************************************/
|
|
|
+
|
|
|
+acpi_status acpi_ut_install_interface(acpi_string interface_name)
|
|
|
+{
|
|
|
+ struct acpi_interface_info *interface_info;
|
|
|
+
|
|
|
+ /* Allocate info block and space for the name string */
|
|
|
+
|
|
|
+ interface_info =
|
|
|
+ ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_interface_info));
|
|
|
+ if (!interface_info) {
|
|
|
+ return (AE_NO_MEMORY);
|
|
|
+ }
|
|
|
+
|
|
|
+ interface_info->name =
|
|
|
+ ACPI_ALLOCATE_ZEROED(ACPI_STRLEN(interface_name) + 1);
|
|
|
+ if (!interface_info->name) {
|
|
|
+ ACPI_FREE(interface_info);
|
|
|
+ return (AE_NO_MEMORY);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Initialize new info and insert at the head of the global list */
|
|
|
+
|
|
|
+ ACPI_STRCPY(interface_info->name, interface_name);
|
|
|
+ interface_info->flags = ACPI_OSI_DYNAMIC;
|
|
|
+ interface_info->next = acpi_gbl_supported_interfaces;
|
|
|
+
|
|
|
+ acpi_gbl_supported_interfaces = interface_info;
|
|
|
+ return (AE_OK);
|
|
|
+}
|
|
|
+
|
|
|
+/*******************************************************************************
|
|
|
+ *
|
|
|
+ * FUNCTION: acpi_ut_remove_interface
|
|
|
+ *
|
|
|
+ * PARAMETERS: interface_name - The interface to remove
|
|
|
+ *
|
|
|
+ * RETURN: Status
|
|
|
+ *
|
|
|
+ * DESCRIPTION: Remove the interface from the global interface list.
|
|
|
+ * Caller MUST hold acpi_gbl_osi_mutex
|
|
|
+ *
|
|
|
+ ******************************************************************************/
|
|
|
+
|
|
|
+acpi_status acpi_ut_remove_interface(acpi_string interface_name)
|
|
|
+{
|
|
|
+ struct acpi_interface_info *previous_interface;
|
|
|
+ struct acpi_interface_info *next_interface;
|
|
|
+
|
|
|
+ previous_interface = next_interface = acpi_gbl_supported_interfaces;
|
|
|
+ while (next_interface) {
|
|
|
+ if (!ACPI_STRCMP(interface_name, next_interface->name)) {
|
|
|
+
|
|
|
+ /* Found: name is in either the static list or was added at runtime */
|
|
|
+
|
|
|
+ if (next_interface->flags & ACPI_OSI_DYNAMIC) {
|
|
|
+
|
|
|
+ /* Interface was added dynamically, remove and free it */
|
|
|
+
|
|
|
+ if (previous_interface == next_interface) {
|
|
|
+ acpi_gbl_supported_interfaces =
|
|
|
+ next_interface->next;
|
|
|
+ } else {
|
|
|
+ previous_interface->next =
|
|
|
+ next_interface->next;
|
|
|
+ }
|
|
|
+
|
|
|
+ ACPI_FREE(next_interface->name);
|
|
|
+ ACPI_FREE(next_interface);
|
|
|
+ } else {
|
|
|
+ /*
|
|
|
+ * Interface is in static list. If marked invalid, then it
|
|
|
+ * does not actually exist. Else, mark it invalid.
|
|
|
+ */
|
|
|
+ if (next_interface->flags & ACPI_OSI_INVALID) {
|
|
|
+ return (AE_NOT_EXIST);
|
|
|
+ }
|
|
|
+
|
|
|
+ next_interface->flags |= ACPI_OSI_INVALID;
|
|
|
+ }
|
|
|
+
|
|
|
+ return (AE_OK);
|
|
|
+ }
|
|
|
+
|
|
|
+ previous_interface = next_interface;
|
|
|
+ next_interface = next_interface->next;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Interface was not found */
|
|
|
+
|
|
|
+ return (AE_NOT_EXIST);
|
|
|
+}
|
|
|
+
|
|
|
+/*******************************************************************************
|
|
|
+ *
|
|
|
+ * FUNCTION: acpi_ut_get_interface
|
|
|
+ *
|
|
|
+ * PARAMETERS: interface_name - The interface to find
|
|
|
+ *
|
|
|
+ * RETURN: struct acpi_interface_info if found. NULL if not found.
|
|
|
+ *
|
|
|
+ * DESCRIPTION: Search for the specified interface name in the global list.
|
|
|
+ * Caller MUST hold acpi_gbl_osi_mutex
|
|
|
+ *
|
|
|
+ ******************************************************************************/
|
|
|
+
|
|
|
+struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name)
|
|
|
+{
|
|
|
+ struct acpi_interface_info *next_interface;
|
|
|
+
|
|
|
+ next_interface = acpi_gbl_supported_interfaces;
|
|
|
+ while (next_interface) {
|
|
|
+ if (!ACPI_STRCMP(interface_name, next_interface->name)) {
|
|
|
+ return (next_interface);
|
|
|
+ }
|
|
|
+
|
|
|
+ next_interface = next_interface->next;
|
|
|
+ }
|
|
|
+
|
|
|
+ return (NULL);
|
|
|
+}
|
|
|
+
|
|
|
+/*******************************************************************************
|
|
|
+ *
|
|
|
+ * FUNCTION: acpi_ut_osi_implementation
|
|
|
+ *
|
|
|
+ * PARAMETERS: walk_state - Current walk state
|
|
|
+ *
|
|
|
+ * RETURN: Status
|
|
|
+ *
|
|
|
+ * DESCRIPTION: Implementation of the _OSI predefined control method. When
|
|
|
+ * an invocation of _OSI is encountered in the system AML,
|
|
|
+ * control is transferred to this function.
|
|
|
+ *
|
|
|
+ ******************************************************************************/
|
|
|
+
|
|
|
+acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state)
|
|
|
+{
|
|
|
+ union acpi_operand_object *string_desc;
|
|
|
+ union acpi_operand_object *return_desc;
|
|
|
+ struct acpi_interface_info *interface_info;
|
|
|
+ acpi_interface_handler interface_handler;
|
|
|
+ u32 return_value;
|
|
|
+
|
|
|
+ ACPI_FUNCTION_TRACE(ut_osi_implementation);
|
|
|
+
|
|
|
+ /* Validate the string input argument (from the AML caller) */
|
|
|
+
|
|
|
+ string_desc = walk_state->arguments[0].object;
|
|
|
+ if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
|
|
|
+ return_ACPI_STATUS(AE_TYPE);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Create a return object */
|
|
|
+
|
|
|
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
|
|
|
+ if (!return_desc) {
|
|
|
+ return_ACPI_STATUS(AE_NO_MEMORY);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Default return value is 0, NOT SUPPORTED */
|
|
|
+
|
|
|
+ return_value = 0;
|
|
|
+ (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
|
|
|
+
|
|
|
+ /* Lookup the interface in the global _OSI list */
|
|
|
+
|
|
|
+ interface_info = acpi_ut_get_interface(string_desc->string.pointer);
|
|
|
+ if (interface_info && !(interface_info->flags & ACPI_OSI_INVALID)) {
|
|
|
+ /*
|
|
|
+ * The interface is supported.
|
|
|
+ * Update the osi_data if necessary. We keep track of the latest
|
|
|
+ * version of Windows that has been requested by the BIOS.
|
|
|
+ */
|
|
|
+ if (interface_info->value > acpi_gbl_osi_data) {
|
|
|
+ acpi_gbl_osi_data = interface_info->value;
|
|
|
+ }
|
|
|
+
|
|
|
+ return_value = ACPI_UINT32_MAX;
|
|
|
+ }
|
|
|
+
|
|
|
+ acpi_os_release_mutex(acpi_gbl_osi_mutex);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Invoke an optional _OSI interface handler. The host OS may wish
|
|
|
+ * to do some interface-specific handling. For example, warn about
|
|
|
+ * certain interfaces or override the true/false support value.
|
|
|
+ */
|
|
|
+ interface_handler = acpi_gbl_interface_handler;
|
|
|
+ if (interface_handler) {
|
|
|
+ return_value =
|
|
|
+ interface_handler(string_desc->string.pointer,
|
|
|
+ return_value);
|
|
|
+ }
|
|
|
+
|
|
|
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INFO,
|
|
|
+ "ACPI: BIOS _OSI(\"%s\") is %ssupported\n",
|
|
|
+ string_desc->string.pointer,
|
|
|
+ return_value == 0 ? "not " : ""));
|
|
|
+
|
|
|
+ /* Complete the return object */
|
|
|
+
|
|
|
+ return_desc->integer.value = return_value;
|
|
|
+ walk_state->return_desc = return_desc;
|
|
|
+ return_ACPI_STATUS(AE_OK);
|
|
|
+}
|
Lin Ming