-
/******************************************************************************
*
* Module Name: hwxface - Public ACPICA hardware interfaces
*
*****************************************************************************/
-/******************************************************************************
- *
- * 1. Copyright Notice
- *
- * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.
+/*
+ * Copyright (C) 2000 - 2017, Intel Corp.
* All rights reserved.
*
- * 2. License
- *
- * 2.1. This is your license from Intel Corp. under its intellectual property
- * rights. You may have additional license terms from the party that provided
- * you this software, covering your right to use that party's intellectual
- * property rights.
- *
- * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
- * copy of the source code appearing in this file ("Covered Code") an
- * irrevocable, perpetual, worldwide license under Intel's copyrights in the
- * base code distributed originally by Intel ("Original Intel Code") to copy,
- * make derivatives, distribute, use and display any portion of the Covered
- * Code in any form, with the right to sublicense such rights; and
- *
- * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
- * license (with the right to sublicense), under only those claims of Intel
- * patents that are infringed by the Original Intel Code, to make, use, sell,
- * offer to sell, and import the Covered Code and derivative works thereof
- * solely to the minimum extent necessary to exercise the above copyright
- * license, and in no event shall the patent license extend to any additions
- * to or modifications of the Original Intel Code. No other license or right
- * is granted directly or by implication, estoppel or otherwise;
- *
- * The above copyright and patent license is granted only if the following
- * conditions are met:
- *
- * 3. Conditions
- *
- * 3.1. Redistribution of Source with Rights to Further Distribute Source.
- * Redistribution of source code of any substantial portion of the Covered
- * Code or modification with rights to further distribute source must include
- * the above Copyright Notice, the above License, this list of Conditions,
- * and the following Disclaimer and Export Compliance provision. In addition,
- * Licensee must cause all Covered Code to which Licensee contributes to
- * contain a file documenting the changes Licensee made to create that Covered
- * Code and the date of any change. Licensee must include in that file the
- * documentation of any changes made by any predecessor Licensee. Licensee
- * must include a prominent statement that the modification is derived,
- * directly or indirectly, from Original Intel Code.
- *
- * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
- * Redistribution of source code of any substantial portion of the Covered
- * Code or modification without rights to further distribute source must
- * include the following Disclaimer and Export Compliance provision in the
- * documentation and/or other materials provided with distribution. In
- * addition, Licensee may not authorize further sublicense of source of any
- * portion of the Covered Code, and must include terms to the effect that the
- * license from Licensee to its licensee is limited to the intellectual
- * property embodied in the software Licensee provides to its licensee, and
- * not to intellectual property embodied in modifications its licensee may
- * make.
- *
- * 3.3. Redistribution of Executable. Redistribution in executable form of any
- * substantial portion of the Covered Code or modification must reproduce the
- * above Copyright Notice, and the following Disclaimer and Export Compliance
- * provision in the documentation and/or other materials provided with the
- * distribution.
- *
- * 3.4. Intel retains all right, title, and interest in and to the Original
- * Intel Code.
- *
- * 3.5. Neither the name Intel nor any other trademark owned or controlled by
- * Intel shall be used in advertising or otherwise to promote the sale, use or
- * other dealings in products derived from or relating to the Covered Code
- * without prior written authorization from Intel.
- *
- * 4. Disclaimer and Export Compliance
- *
- * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
- * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
- * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
- * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
- * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
- * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
- * PARTICULAR PURPOSE.
- *
- * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
- * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
- * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
- * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
- * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
- * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
- * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
- * LIMITED REMEDY.
- *
- * 4.3. Licensee shall not export, either directly or indirectly, any of this
- * software or system incorporating such software without first obtaining any
- * required license or other approval from the U. S. Department of Commerce or
- * any other agency or department of the United States Government. In the
- * event Licensee exports any such software from the United States or
- * re-exports any such software from a foreign destination, Licensee shall
- * ensure that the distribution and export/re-export of the software is in
- * compliance with all laws, regulations, orders, or other restrictions of the
- * U.S. Export Administration Regulations. Licensee agrees that neither it nor
- * any of its subsidiaries will export/re-export any technical data, process,
- * software, or service, directly or indirectly, to any country for which the
- * United States government or any agency thereof requires an export license,
- * other governmental approval, or letter of assurance, without first obtaining
- * such license, approval or letter.
- *
- *****************************************************************************/
+ * 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 EXPORT_ACPI_INTERFACES
#include "acpi.h"
#include "accommon.h"
* For I/O space, write directly to the OSL. This bypasses the port
* validation mechanism, which may block a valid write to the reset
* register.
+ *
+ * NOTE:
+ * The ACPI spec requires the reset register width to be 8, so we
+ * hardcode it here and ignore the FADT value. This maintains
+ * compatibility with other ACPI implementations that have allowed
+ * BIOS code with bad register width values to go unnoticed.
*/
Status = AcpiOsWritePort ((ACPI_IO_ADDRESS) ResetReg->Address,
- AcpiGbl_FADT.ResetValue, ResetReg->BitWidth);
+ AcpiGbl_FADT.ResetValue, ACPI_RESET_REGISTER_WIDTH);
}
else
{
UINT64 *ReturnValue,
ACPI_GENERIC_ADDRESS *Reg)
{
- UINT32 Value;
- UINT32 Width;
- UINT64 Address;
ACPI_STATUS Status;
ACPI_FUNCTION_NAME (AcpiRead);
- if (!ReturnValue)
- {
- return (AE_BAD_PARAMETER);
- }
-
- /* Validate contents of the GAS register. Allow 64-bit transfers */
-
- Status = AcpiHwValidateRegister (Reg, 64, &Address);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Width = Reg->BitWidth;
- if (Width == 64)
- {
- Width = 32; /* Break into two 32-bit transfers */
- }
-
- /* Initialize entire 64-bit return value to zero */
-
- *ReturnValue = 0;
- Value = 0;
-
- /*
- * Two address spaces supported: Memory or IO. PCI_Config is
- * not supported here because the GAS structure is insufficient
- */
- if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY)
- {
- Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS)
- Address, &Value, Width);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
- *ReturnValue = Value;
-
- if (Reg->BitWidth == 64)
- {
- /* Read the top 32 bits */
-
- Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS)
- (Address + 4), &Value, 32);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
- *ReturnValue |= ((UINT64) Value << 32);
- }
- }
- else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
- {
- Status = AcpiHwReadPort ((ACPI_IO_ADDRESS)
- Address, &Value, Width);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
- *ReturnValue = Value;
-
- if (Reg->BitWidth == 64)
- {
- /* Read the top 32 bits */
-
- Status = AcpiHwReadPort ((ACPI_IO_ADDRESS)
- (Address + 4), &Value, 32);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
- *ReturnValue |= ((UINT64) Value << 32);
- }
- }
-
- ACPI_DEBUG_PRINT ((ACPI_DB_IO,
- "Read: %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n",
- ACPI_FORMAT_UINT64 (*ReturnValue), Reg->BitWidth,
- ACPI_FORMAT_UINT64 (Address),
- AcpiUtGetRegionName (Reg->SpaceId)));
-
+ Status = AcpiHwRead (ReturnValue, Reg);
return (Status);
}
UINT64 Value,
ACPI_GENERIC_ADDRESS *Reg)
{
- UINT32 Width;
- UINT64 Address;
ACPI_STATUS Status;
ACPI_FUNCTION_NAME (AcpiWrite);
- /* Validate contents of the GAS register. Allow 64-bit transfers */
-
- Status = AcpiHwValidateRegister (Reg, 64, &Address);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- Width = Reg->BitWidth;
- if (Width == 64)
- {
- Width = 32; /* Break into two 32-bit transfers */
- }
-
- /*
- * Two address spaces supported: Memory or IO. PCI_Config is
- * not supported here because the GAS structure is insufficient
- */
- if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY)
- {
- Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS)
- Address, ACPI_LODWORD (Value), Width);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- if (Reg->BitWidth == 64)
- {
- Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS)
- (Address + 4), ACPI_HIDWORD (Value), 32);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
- }
- }
- else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
- {
- Status = AcpiHwWritePort ((ACPI_IO_ADDRESS)
- Address, ACPI_LODWORD (Value), Width);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
-
- if (Reg->BitWidth == 64)
- {
- Status = AcpiHwWritePort ((ACPI_IO_ADDRESS)
- (Address + 4), ACPI_HIDWORD (Value), 32);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
- }
- }
-
- ACPI_DEBUG_PRINT ((ACPI_DB_IO,
- "Wrote: %8.8X%8.8X width %2d to %8.8X%8.8X (%s)\n",
- ACPI_FORMAT_UINT64 (Value), Reg->BitWidth,
- ACPI_FORMAT_UINT64 (Address),
- AcpiUtGetRegionName (Reg->SpaceId)));
-
+ Status = AcpiHwWrite (Value, Reg);
return (Status);
}
ACPI_EXPORT_SYMBOL (AcpiWrite)
+#if (!ACPI_REDUCED_HARDWARE)
/*******************************************************************************
*
* FUNCTION: AcpiReadBitRegister
/* Read the entire parent register */
Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister,
- &RegisterValue);
+ &RegisterValue);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
/* Normalize the value that was read, mask off other bits */
Value = ((RegisterValue & BitRegInfo->AccessBitMask)
- >> BitRegInfo->BitPosition);
+ >> BitRegInfo->BitPosition);
ACPI_DEBUG_PRINT ((ACPI_DB_IO,
"BitReg %X, ParentReg %X, Actual %8.8X, ReturnValue %8.8X\n",
*
* PARAMETERS: RegisterId - ID of ACPI Bit Register to access
* Value - Value to write to the register, in bit
- * position zero. The bit is automaticallly
+ * position zero. The bit is automatically
* shifted to the correct position.
*
* RETURN: Status
* interested in
*/
Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister,
- &RegisterValue);
+ &RegisterValue);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
BitRegInfo->AccessBitMask, Value);
Status = AcpiHwRegisterWrite (BitRegInfo->ParentRegister,
- RegisterValue);
+ RegisterValue);
}
else
{
if (RegisterValue)
{
Status = AcpiHwRegisterWrite (ACPI_REGISTER_PM1_STATUS,
- RegisterValue);
+ RegisterValue);
}
}
ACPI_EXPORT_SYMBOL (AcpiWriteBitRegister)
+#endif /* !ACPI_REDUCED_HARDWARE */
+
/*******************************************************************************
*
* *SleepTypeA - Where SLP_TYPa is returned
* *SleepTypeB - Where SLP_TYPb is returned
*
- * RETURN: Status - ACPI status
+ * RETURN: Status
+ *
+ * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested
+ * sleep state via the appropriate \_Sx object.
*
- * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep
- * state.
+ * The sleep state package returned from the corresponding \_Sx_ object
+ * must contain at least one integer.
+ *
+ * March 2005:
+ * Added support for a package that contains two integers. This
+ * goes against the ACPI specification which defines this object as a
+ * package with one encoded DWORD integer. However, existing practice
+ * by many BIOS vendors is to return a package with 2 or more integer
+ * elements, at least one per sleep type (A/B).
+ *
+ * January 2013:
+ * Therefore, we must be prepared to accept a package with either a
+ * single integer or multiple integers.
+ *
+ * The single integer DWORD format is as follows:
+ * BYTE 0 - Value for the PM1A SLP_TYP register
+ * BYTE 1 - Value for the PM1B SLP_TYP register
+ * BYTE 2-3 - Reserved
+ *
+ * The dual integer format is as follows:
+ * Integer 0 - Value for the PM1A SLP_TYP register
+ * Integer 1 - Value for the PM1A SLP_TYP register
*
******************************************************************************/
UINT8 *SleepTypeA,
UINT8 *SleepTypeB)
{
- ACPI_STATUS Status = AE_OK;
+ ACPI_STATUS Status;
ACPI_EVALUATE_INFO *Info;
+ ACPI_OPERAND_OBJECT **Elements;
ACPI_FUNCTION_TRACE (AcpiGetSleepTypeData);
/* Validate parameters */
if ((SleepState > ACPI_S_STATES_MAX) ||
- !SleepTypeA ||
- !SleepTypeB)
+ !SleepTypeA || !SleepTypeB)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
return_ACPI_STATUS (AE_NO_MEMORY);
}
- Info->Pathname = ACPI_CAST_PTR (char, AcpiGbl_SleepStateNames[SleepState]);
-
- /* Evaluate the namespace object containing the values for this state */
+ /*
+ * Evaluate the \_Sx namespace object containing the register values
+ * for this state
+ */
+ Info->RelativePathname = AcpiGbl_SleepStateNames[SleepState];
Status = AcpiNsEvaluate (Info);
if (ACPI_FAILURE (Status))
{
- ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
- "%s while evaluating SleepState [%s]\n",
- AcpiFormatException (Status), Info->Pathname));
+ if (Status == AE_NOT_FOUND)
+ {
+ /* The _Sx states are optional, ignore NOT_FOUND */
- goto Cleanup;
+ goto FinalCleanup;
+ }
+
+ goto WarningCleanup;
}
/* Must have a return object */
if (!Info->ReturnObject)
{
ACPI_ERROR ((AE_INFO, "No Sleep State object returned from [%s]",
- Info->Pathname));
- Status = AE_NOT_EXIST;
+ Info->RelativePathname));
+ Status = AE_AML_NO_RETURN_VALUE;
+ goto WarningCleanup;
}
- /* It must be of type Package */
+ /* Return object must be of type Package */
- else if (Info->ReturnObject->Common.Type != ACPI_TYPE_PACKAGE)
+ if (Info->ReturnObject->Common.Type != ACPI_TYPE_PACKAGE)
{
ACPI_ERROR ((AE_INFO, "Sleep State return object is not a Package"));
Status = AE_AML_OPERAND_TYPE;
+ goto ReturnValueCleanup;
}
/*
- * The package must have at least two elements. NOTE (March 2005): This
- * goes against the current ACPI spec which defines this object as a
- * package with one encoded DWORD element. However, existing practice
- * by BIOS vendors seems to be to have 2 or more elements, at least
- * one per sleep type (A/B).
+ * Any warnings about the package length or the object types have
+ * already been issued by the predefined name module -- there is no
+ * need to repeat them here.
*/
- else if (Info->ReturnObject->Package.Count < 2)
+ Elements = Info->ReturnObject->Package.Elements;
+ switch (Info->ReturnObject->Package.Count)
{
- ACPI_ERROR ((AE_INFO,
- "Sleep State return package does not have at least two elements"));
- Status = AE_AML_NO_OPERAND;
- }
+ case 0:
- /* The first two elements must both be of type Integer */
+ Status = AE_AML_PACKAGE_LIMIT;
+ break;
- else if (((Info->ReturnObject->Package.Elements[0])->Common.Type
- != ACPI_TYPE_INTEGER) ||
- ((Info->ReturnObject->Package.Elements[1])->Common.Type
- != ACPI_TYPE_INTEGER))
- {
- ACPI_ERROR ((AE_INFO,
- "Sleep State return package elements are not both Integers "
- "(%s, %s)",
- AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[0]),
- AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[1])));
- Status = AE_AML_OPERAND_TYPE;
- }
- else
- {
- /* Valid _Sx_ package size, type, and value */
+ case 1:
+
+ if (Elements[0]->Common.Type != ACPI_TYPE_INTEGER)
+ {
+ Status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+
+ /* A valid _Sx_ package with one integer */
+
+ *SleepTypeA = (UINT8) Elements[0]->Integer.Value;
+ *SleepTypeB = (UINT8) (Elements[0]->Integer.Value >> 8);
+ break;
- *SleepTypeA = (UINT8)
- (Info->ReturnObject->Package.Elements[0])->Integer.Value;
- *SleepTypeB = (UINT8)
- (Info->ReturnObject->Package.Elements[1])->Integer.Value;
+ case 2:
+ default:
+
+ if ((Elements[0]->Common.Type != ACPI_TYPE_INTEGER) ||
+ (Elements[1]->Common.Type != ACPI_TYPE_INTEGER))
+ {
+ Status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+
+ /* A valid _Sx_ package with two integers */
+
+ *SleepTypeA = (UINT8) Elements[0]->Integer.Value;
+ *SleepTypeB = (UINT8) Elements[1]->Integer.Value;
+ break;
}
+ReturnValueCleanup:
+ AcpiUtRemoveReference (Info->ReturnObject);
+
+WarningCleanup:
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
- "While evaluating SleepState [%s], bad Sleep object %p type %s",
- Info->Pathname, Info->ReturnObject,
- AcpiUtGetObjectTypeName (Info->ReturnObject)));
+ "While evaluating Sleep State [%s]",
+ Info->RelativePathname));
}
- AcpiUtRemoveReference (Info->ReturnObject);
-
-Cleanup:
+FinalCleanup:
ACPI_FREE (Info);
return_ACPI_STATUS (Status);
}
projects / reactos.git / blobdiff