forked from KolibriOS/kolibrios
544 lines
17 KiB
C
544 lines
17 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: dtfield.c - Code generation for individual source fields
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2010, 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.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#define __DTFIELD_C__
|
|
|
|
#include "aslcompiler.h"
|
|
#include "dtcompiler.h"
|
|
|
|
#define _COMPONENT DT_COMPILER
|
|
ACPI_MODULE_NAME ("dtfield")
|
|
|
|
|
|
/* Local prototypes */
|
|
|
|
static void
|
|
DtCompileString (
|
|
UINT8 *Buffer,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength);
|
|
|
|
static char *
|
|
DtPciPathToBuffer (
|
|
char *PciPath);
|
|
|
|
static void
|
|
DtCompilePciPath (
|
|
UINT8 *Buffer,
|
|
char *StringValue,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength);
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompileOneField
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* Field - Field to be compiled
|
|
* ByteLength - Byte length of the field
|
|
* Type - Field type
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Compile a field value to binary
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtCompileOneField (
|
|
UINT8 *Buffer,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength,
|
|
UINT8 Type,
|
|
UINT8 Flags)
|
|
{
|
|
|
|
switch (Type)
|
|
{
|
|
case DT_FIELD_TYPE_INTEGER:
|
|
DtCompileInteger (Buffer, Field, ByteLength, Flags);
|
|
break;
|
|
|
|
case DT_FIELD_TYPE_STRING:
|
|
DtCompileString (Buffer, Field, ByteLength);
|
|
break;
|
|
|
|
case DT_FIELD_TYPE_BUFFER:
|
|
DtCompileBuffer (Buffer, Field->Value, Field, ByteLength);
|
|
break;
|
|
|
|
case DT_FIELD_TYPE_PCI_PATH:
|
|
DtCompilePciPath (Buffer, Field->Value, Field, ByteLength);
|
|
break;
|
|
|
|
default:
|
|
DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid field type");
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompileString
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* Field - String to be copied to buffer
|
|
* ByteLength - Maximum length of string
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Copy string to the buffer
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void
|
|
DtCompileString (
|
|
UINT8 *Buffer,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength)
|
|
{
|
|
UINT32 Length;
|
|
|
|
|
|
Length = ACPI_STRLEN (Field->Value);
|
|
|
|
/* Check if the string is too long for the field */
|
|
|
|
if (Length > ByteLength)
|
|
{
|
|
sprintf (MsgBuffer, "Maximum %u characters", ByteLength);
|
|
DtError (ASL_ERROR, ASL_MSG_STRING_LENGTH, Field, MsgBuffer);
|
|
Length = ByteLength;
|
|
}
|
|
|
|
/* If input string is shorter than ByteLength, pad with blanks */
|
|
|
|
ACPI_MEMSET (Buffer, 0x20, ByteLength);
|
|
ACPI_MEMCPY (Buffer, Field->Value, Length);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompileInteger
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* Field - Field obj with Integer to be compiled
|
|
* ByteLength - Byte length of the integer
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Compile an integer
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
DtCompileInteger (
|
|
UINT8 *Buffer,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength,
|
|
UINT8 Flags)
|
|
{
|
|
UINT64 Value = 0;
|
|
UINT64 MaxValue;
|
|
UINT8 *Hex;
|
|
char *Message = NULL;
|
|
ACPI_STATUS Status;
|
|
int i;
|
|
|
|
|
|
/* Byte length must be in range 1-8 */
|
|
|
|
if ((ByteLength > 8) || (ByteLength == 0))
|
|
{
|
|
DtFatal (ASL_MSG_COMPILER_INTERNAL, Field,
|
|
"Invalid internal Byte length");
|
|
return;
|
|
}
|
|
|
|
/* Convert string to an actual integer */
|
|
|
|
Status = DtStrtoul64 (Field->Value, &Value);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status == AE_LIMIT)
|
|
{
|
|
Message = "Constant larger than 64 bits";
|
|
}
|
|
else if (Status == AE_BAD_CHARACTER)
|
|
{
|
|
Message = "Invalid character in constant";
|
|
}
|
|
|
|
DtError (ASL_ERROR, ASL_MSG_INVALID_HEX_INTEGER, Field, Message);
|
|
goto Exit;
|
|
}
|
|
|
|
/* Ensure that reserved fields are set to zero */
|
|
/* TBD: should we set to zero, or just make this an ERROR? */
|
|
/* TBD: Probably better to use a flag */
|
|
|
|
if (!ACPI_STRCMP (Field->Name, "Reserved") &&
|
|
(Value != 0))
|
|
{
|
|
DtError (ASL_WARNING, ASL_MSG_RESERVED_VALUE, Field,
|
|
"Setting to zero");
|
|
Value = 0;
|
|
}
|
|
|
|
/* Check if the value must be non-zero */
|
|
|
|
if ((Value == 0) && (Flags & DT_NON_ZERO))
|
|
{
|
|
DtError (ASL_ERROR, ASL_MSG_ZERO_VALUE, Field, NULL);
|
|
}
|
|
|
|
/*
|
|
* Generate the maximum value for the data type (ByteLength)
|
|
* Note: construct chosen for maximum portability
|
|
*/
|
|
MaxValue = ((UINT64) (-1)) >> (64 - (ByteLength * 8));
|
|
|
|
/* Validate that the input value is within range of the target */
|
|
|
|
if (Value > MaxValue)
|
|
{
|
|
sprintf (MsgBuffer, "Maximum %u bytes", ByteLength);
|
|
DtError (ASL_ERROR, ASL_MSG_INTEGER_SIZE, Field, MsgBuffer);
|
|
}
|
|
|
|
/*
|
|
* TBD: hard code for ASF! Capabilites field.
|
|
*
|
|
* This field is actually a buffer, not a 56-bit integer --
|
|
* so, the ordering is reversed. Something should be fixed
|
|
* so we don't need this code.
|
|
*/
|
|
if (ByteLength == 7)
|
|
{
|
|
Hex = ACPI_CAST_PTR (UINT8, &Value);
|
|
for (i = 6; i >= 0; i--)
|
|
{
|
|
Buffer[i] = *Hex;
|
|
Hex++;
|
|
}
|
|
return;
|
|
}
|
|
|
|
Exit:
|
|
ACPI_MEMCPY (Buffer, &Value, ByteLength);
|
|
return;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtPciPathToBuffer
|
|
*
|
|
* PARAMETERS: PciPath - DMAR "PCI Path" field
|
|
*
|
|
* RETURN: Strings of PCI path
|
|
*
|
|
* DESCRIPTION: Remove brackets and comma from DMAR "PCI Path" string, for
|
|
* example: [1D, 01] ==> 1D 01
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static char *
|
|
DtPciPathToBuffer (
|
|
char *PciPath)
|
|
{
|
|
char *Buffer;
|
|
|
|
|
|
Buffer = UtLocalCalloc (6);
|
|
|
|
Buffer[0] = PciPath[1];
|
|
Buffer[1] = PciPath[2];
|
|
Buffer[2] = ' ';
|
|
Buffer[3] = PciPath[5];
|
|
Buffer[4] = PciPath[6];
|
|
|
|
return (Buffer);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompileBuffer
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* StringValue - Integer list to be compiled
|
|
* Field - Current field object
|
|
* ByteLength - Byte length of the integer list
|
|
*
|
|
* RETURN: Count of remaining data in the input list
|
|
*
|
|
* DESCRIPTION: Compile and pack an integer list, for example
|
|
* "AA 1F 20 3B" ==> Buffer[] = {0xAA,0x1F,0x20,0x3B}
|
|
*
|
|
*****************************************************************************/
|
|
|
|
UINT32
|
|
DtCompileBuffer (
|
|
UINT8 *Buffer,
|
|
char *StringValue,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength)
|
|
{
|
|
ACPI_STATUS Status;
|
|
char Hex[3];
|
|
UINT64 Value;
|
|
UINT32 i;
|
|
UINT32 Count;
|
|
|
|
|
|
Count = ACPI_STRLEN (StringValue) / 3 + 1;
|
|
|
|
Hex[2] = 0;
|
|
for (i = 0; i < Count; i++)
|
|
{
|
|
Hex[0] = StringValue[0];
|
|
Hex[1] = StringValue[1];
|
|
|
|
/* Convert one hex byte */
|
|
|
|
Value = 0;
|
|
Status = DtStrtoul64 (Hex, &Value);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
DtError (ASL_ERROR, ASL_MSG_BUFFER_ELEMENT, Field, MsgBuffer);
|
|
return (ByteLength - Count);
|
|
}
|
|
|
|
Buffer[i] = (UINT8) Value;
|
|
StringValue += 3;
|
|
}
|
|
|
|
return (ByteLength - Count);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompilePciPath
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* StringValue - DMAR pci path string
|
|
* ByteLength - Byte length of DMAR pci path string, 2
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Compile DMAR PCI path string to binary
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void
|
|
DtCompilePciPath (
|
|
UINT8 *Buffer,
|
|
char *StringValue,
|
|
DT_FIELD *Field,
|
|
UINT32 ByteLength)
|
|
{
|
|
char *PciPathBuffer;
|
|
|
|
|
|
/* Parse path to simple hex digits, then convert to binary */
|
|
|
|
PciPathBuffer = DtPciPathToBuffer (StringValue);
|
|
|
|
DtCompileBuffer (Buffer, PciPathBuffer, Field, ByteLength);
|
|
ACPI_FREE (PciPathBuffer);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: DtCompileFlag
|
|
*
|
|
* PARAMETERS: Buffer - Output buffer
|
|
* Field - Field to be compiled
|
|
* Info - Flag info
|
|
* BitPosition - Flag bit position
|
|
*
|
|
* RETURN: Next flag bit position
|
|
*
|
|
* DESCRIPTION: Compile a flag
|
|
*
|
|
*****************************************************************************/
|
|
|
|
UINT32
|
|
DtCompileFlag (
|
|
UINT8 *Buffer,
|
|
DT_FIELD *Field,
|
|
ACPI_DMTABLE_INFO *Info,
|
|
UINT32 BitPosition)
|
|
{
|
|
UINT64 Value = 0;
|
|
UINT32 BitLength = 1;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
Status = DtStrtoul64 (Field->Value, &Value);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
DtError (ASL_ERROR, ASL_MSG_INVALID_HEX_INTEGER, Field, NULL);
|
|
}
|
|
|
|
switch (Info->Opcode)
|
|
{
|
|
case ACPI_DMT_FLAG0:
|
|
case ACPI_DMT_FLAG1:
|
|
case ACPI_DMT_FLAG2:
|
|
case ACPI_DMT_FLAG3:
|
|
case ACPI_DMT_FLAG4:
|
|
case ACPI_DMT_FLAG5:
|
|
case ACPI_DMT_FLAG6:
|
|
case ACPI_DMT_FLAG7:
|
|
|
|
BitLength = 1;
|
|
break;
|
|
|
|
case ACPI_DMT_FLAGS0:
|
|
case ACPI_DMT_FLAGS2:
|
|
|
|
BitLength = 2;
|
|
break;
|
|
|
|
default:
|
|
|
|
DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid flag opcode");
|
|
break;
|
|
}
|
|
|
|
/* Check range of the input flag value */
|
|
|
|
if (Value >= ((UINT64) 1 << BitLength))
|
|
{
|
|
sprintf (MsgBuffer, "Maximum %u bit", BitLength);
|
|
DtError (ASL_ERROR, ASL_MSG_FLAG_VALUE, Field, MsgBuffer);
|
|
Value = 0;
|
|
}
|
|
|
|
/* Insert the flag, return next flag bit position */
|
|
|
|
Buffer += ACPI_DIV_8 (BitPosition);
|
|
*Buffer |= (UINT8) (Value << ACPI_MOD_8 (BitPosition));
|
|
|
|
return (BitPosition + BitLength);
|
|
}
|