aboutsummaryrefslogtreecommitdiff
path: root/source/components/utilities/utosi.c
diff options
context:
space:
mode:
authorJung-uk Kim <jkim@FreeBSD.org>2012-02-16 00:24:10 +0000
committerJung-uk Kim <jkim@FreeBSD.org>2012-02-16 00:24:10 +0000
commit5437485bdb98c4b00f15969e013c454426e9c862 (patch)
tree71526afe7e3c45a4c88ba7b5d8d57d1e469feec2 /source/components/utilities/utosi.c
parent234358d94982312d34c80b868fea481307fb3a48 (diff)
downloadsrc-5437485bdb98c4b00f15969e013c454426e9c862.tar.gz
src-5437485bdb98c4b00f15969e013c454426e9c862.zip
Import ACPICA 20120215.vendor/acpica/20120215
Notes
Notes: svn path=/vendor-sys/acpica/dist/; revision=231798 svn path=/vendor-sys/acpica/20120215/; revision=231799; tag=vendor/acpica/20120215
Diffstat (limited to 'source/components/utilities/utosi.c')
-rw-r--r--source/components/utilities/utosi.c422
1 files changed, 422 insertions, 0 deletions
diff --git a/source/components/utilities/utosi.c b/source/components/utilities/utosi.c
new file mode 100644
index 000000000000..dcce8a99e18a
--- /dev/null
+++ b/source/components/utilities/utosi.c
@@ -0,0 +1,422 @@
+/******************************************************************************
+ *
+ * Module Name: utosi - Support for the _OSI predefined control method
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, 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.
+ */
+
+#define __UTOSI_C__
+
+#include "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 ACPI_INTERFACE_INFO AcpiDefaultSupportedInterfaces[] =
+{
+ /* 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 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2}, /* Windows Vista SP2 - Added 09/2010 */
+ {"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
+ * AcpiInstallInterface 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: AcpiUtInitializeInterfaces
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize the global _OSI supported interfaces list
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiUtInitializeInterfaces (
+ void)
+{
+ UINT32 i;
+
+
+ (void) AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
+ AcpiGbl_SupportedInterfaces = AcpiDefaultSupportedInterfaces;
+
+ /* Link the static list of supported interfaces */
+
+ for (i = 0; i < (ACPI_ARRAY_LENGTH (AcpiDefaultSupportedInterfaces) - 1); i++)
+ {
+ AcpiDefaultSupportedInterfaces[i].Next =
+ &AcpiDefaultSupportedInterfaces[(ACPI_SIZE) i + 1];
+ }
+
+ AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
+ return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiUtInterfaceTerminate
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete all interfaces in the global list. Sets
+ * AcpiGbl_SupportedInterfaces to NULL.
+ *
+ ******************************************************************************/
+
+void
+AcpiUtInterfaceTerminate (
+ void)
+{
+ ACPI_INTERFACE_INFO *NextInterface;
+
+
+ (void) AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
+ NextInterface = AcpiGbl_SupportedInterfaces;
+
+ while (NextInterface)
+ {
+ AcpiGbl_SupportedInterfaces = NextInterface->Next;
+
+ /* Only interfaces added at runtime can be freed */
+
+ if (NextInterface->Flags & ACPI_OSI_DYNAMIC)
+ {
+ ACPI_FREE (NextInterface->Name);
+ ACPI_FREE (NextInterface);
+ }
+
+ NextInterface = AcpiGbl_SupportedInterfaces;
+ }
+
+ AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiUtInstallInterface
+ *
+ * PARAMETERS: InterfaceName - The interface to install
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install the interface into the global interface list.
+ * Caller MUST hold AcpiGbl_OsiMutex
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiUtInstallInterface (
+ ACPI_STRING InterfaceName)
+{
+ ACPI_INTERFACE_INFO *InterfaceInfo;
+
+
+ /* Allocate info block and space for the name string */
+
+ InterfaceInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_INTERFACE_INFO));
+ if (!InterfaceInfo)
+ {
+ return (AE_NO_MEMORY);
+ }
+
+ InterfaceInfo->Name = ACPI_ALLOCATE_ZEROED (ACPI_STRLEN (InterfaceName) + 1);
+ if (!InterfaceInfo->Name)
+ {
+ ACPI_FREE (InterfaceInfo);
+ return (AE_NO_MEMORY);
+ }
+
+ /* Initialize new info and insert at the head of the global list */
+
+ ACPI_STRCPY (InterfaceInfo->Name, InterfaceName);
+ InterfaceInfo->Flags = ACPI_OSI_DYNAMIC;
+ InterfaceInfo->Next = AcpiGbl_SupportedInterfaces;
+
+ AcpiGbl_SupportedInterfaces = InterfaceInfo;
+ return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiUtRemoveInterface
+ *
+ * PARAMETERS: InterfaceName - The interface to remove
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove the interface from the global interface list.
+ * Caller MUST hold AcpiGbl_OsiMutex
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiUtRemoveInterface (
+ ACPI_STRING InterfaceName)
+{
+ ACPI_INTERFACE_INFO *PreviousInterface;
+ ACPI_INTERFACE_INFO *NextInterface;
+
+
+ PreviousInterface = NextInterface = AcpiGbl_SupportedInterfaces;
+ while (NextInterface)
+ {
+ if (!ACPI_STRCMP (InterfaceName, NextInterface->Name))
+ {
+ /* Found: name is in either the static list or was added at runtime */
+
+ if (NextInterface->Flags & ACPI_OSI_DYNAMIC)
+ {
+ /* Interface was added dynamically, remove and free it */
+
+ if (PreviousInterface == NextInterface)
+ {
+ AcpiGbl_SupportedInterfaces = NextInterface->Next;
+ }
+ else
+ {
+ PreviousInterface->Next = NextInterface->Next;
+ }
+
+ ACPI_FREE (NextInterface->Name);
+ ACPI_FREE (NextInterface);
+ }
+ else
+ {
+ /*
+ * Interface is in static list. If marked invalid, then it
+ * does not actually exist. Else, mark it invalid.
+ */
+ if (NextInterface->Flags & ACPI_OSI_INVALID)
+ {
+ return (AE_NOT_EXIST);
+ }
+
+ NextInterface->Flags |= ACPI_OSI_INVALID;
+ }
+
+ return (AE_OK);
+ }
+
+ PreviousInterface = NextInterface;
+ NextInterface = NextInterface->Next;
+ }
+
+ /* Interface was not found */
+
+ return (AE_NOT_EXIST);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiUtGetInterface
+ *
+ * PARAMETERS: InterfaceName - The interface to find
+ *
+ * RETURN: ACPI_INTERFACE_INFO if found. NULL if not found.
+ *
+ * DESCRIPTION: Search for the specified interface name in the global list.
+ * Caller MUST hold AcpiGbl_OsiMutex
+ *
+ ******************************************************************************/
+
+ACPI_INTERFACE_INFO *
+AcpiUtGetInterface (
+ ACPI_STRING InterfaceName)
+{
+ ACPI_INTERFACE_INFO *NextInterface;
+
+
+ NextInterface = AcpiGbl_SupportedInterfaces;
+ while (NextInterface)
+ {
+ if (!ACPI_STRCMP (InterfaceName, NextInterface->Name))
+ {
+ return (NextInterface);
+ }
+
+ NextInterface = NextInterface->Next;
+ }
+
+ return (NULL);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiUtOsiImplementation
+ *
+ * PARAMETERS: WalkState - 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
+AcpiUtOsiImplementation (
+ ACPI_WALK_STATE *WalkState)
+{
+ ACPI_OPERAND_OBJECT *StringDesc;
+ ACPI_OPERAND_OBJECT *ReturnDesc;
+ ACPI_INTERFACE_INFO *InterfaceInfo;
+ ACPI_INTERFACE_HANDLER InterfaceHandler;
+ UINT32 ReturnValue;
+
+
+ ACPI_FUNCTION_TRACE (UtOsiImplementation);
+
+
+ /* Validate the string input argument (from the AML caller) */
+
+ StringDesc = WalkState->Arguments[0].Object;
+ if (!StringDesc ||
+ (StringDesc->Common.Type != ACPI_TYPE_STRING))
+ {
+ return_ACPI_STATUS (AE_TYPE);
+ }
+
+ /* Create a return object */
+
+ ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
+ if (!ReturnDesc)
+ {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Default return value is 0, NOT SUPPORTED */
+
+ ReturnValue = 0;
+ (void) AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
+
+ /* Lookup the interface in the global _OSI list */
+
+ InterfaceInfo = AcpiUtGetInterface (StringDesc->String.Pointer);
+ if (InterfaceInfo &&
+ !(InterfaceInfo->Flags & ACPI_OSI_INVALID))
+ {
+ /*
+ * The interface is supported.
+ * Update the OsiData if necessary. We keep track of the latest
+ * version of Windows that has been requested by the BIOS.
+ */
+ if (InterfaceInfo->Value > AcpiGbl_OsiData)
+ {
+ AcpiGbl_OsiData = InterfaceInfo->Value;
+ }
+
+ ReturnValue = ACPI_UINT32_MAX;
+ }
+
+ AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
+
+ /*
+ * 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.
+ */
+ InterfaceHandler = AcpiGbl_InterfaceHandler;
+ if (InterfaceHandler)
+ {
+ ReturnValue = InterfaceHandler (
+ StringDesc->String.Pointer, ReturnValue);
+ }
+
+ ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO,
+ "ACPI: BIOS _OSI(\"%s\") is %ssupported\n",
+ StringDesc->String.Pointer, ReturnValue == 0 ? "not " : ""));
+
+ /* Complete the return object */
+
+ ReturnDesc->Integer.Value = ReturnValue;
+ WalkState->ReturnDesc = ReturnDesc;
+ return_ACPI_STATUS (AE_OK);
+}