static UINT16
RsGetBufferDataLength (
ACPI_PARSE_OBJECT *InitializerOp)
{
UINT16 ExtraDataSize = 0;
ACPI_PARSE_OBJECT *DataList;
/* Find the byte-initializer list */
while (InitializerOp)
{
if (InitializerOp->Asl.ParseOpcode == PARSEOP_DATABUFFER)
{
/* First child is the optional length (ignore it here) */
DataList = InitializerOp->Asl.Child;
DataList = ASL_GET_PEER_NODE (DataList);
/* Count the data items (each one is a byte of data) */
while (DataList)
{
ExtraDataSize++;
DataList = ASL_GET_PEER_NODE (DataList);
}
return (ExtraDataSize);
}
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
}
return (ExtraDataSize);
}
void
RsCheckListForDuplicates (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *NextValueOp = Op;
ACPI_PARSE_OBJECT *NextOp;
UINT32 Value;
if (!Op)
{
return;
}
/* Search list once for each value in the list */
while (NextValueOp)
{
Value = (UINT32) NextValueOp->Asl.Value.Integer;
/* Compare this value to all remaining values in the list */
NextOp = ASL_GET_PEER_NODE (NextValueOp);
while (NextOp)
{
if (NextOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
/* Compare values */
if (Value == (UINT32) NextOp->Asl.Value.Integer)
{
/* Emit error only once per duplicate node */
if (!(NextOp->Asl.CompileFlags & NODE_IS_DUPLICATE))
{
NextOp->Asl.CompileFlags |= NODE_IS_DUPLICATE;
AslError (ASL_ERROR, ASL_MSG_DUPLICATE_ITEM,
NextOp, NULL);
}
}
}
NextOp = ASL_GET_PEER_NODE (NextOp);
}
NextValueOp = ASL_GET_PEER_NODE (NextValueOp);
}
}
static UINT16
RsGetInterruptDataLength (
ACPI_PARSE_OBJECT *InitializerOp)
{
UINT16 InterruptLength;
UINT32 i;
/* Count the interrupt numbers */
InterruptLength = 0;
for (i = 0; InitializerOp; i++)
{
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
/* Interrupt list starts at offset 10 (Gpio descriptors) */
if (i >= 10)
{
InterruptLength += 2;
}
}
return (InterruptLength);
}
ACPI_PARSE_OBJECT *
RsCompleteNodeAndGetNext (
ACPI_PARSE_OBJECT *Op)
{
/* Mark this node unused */
Op->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;
/* Move on to the next peer node in the initializer list */
return (ASL_GET_PEER_NODE (Op));
}
UINT16
RsGetStringDataLength (
ACPI_PARSE_OBJECT *InitializerOp)
{
while (InitializerOp)
{
if (InitializerOp->Asl.ParseOpcode == PARSEOP_STRING_LITERAL)
{
return ((UINT16) (strlen (InitializerOp->Asl.Value.String) + 1));
}
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
}
return 0;
}
BOOLEAN
AnLastStatementIsReturn (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *Next;
/* Check if last statement is a return */
Next = ASL_GET_CHILD_NODE (Op);
while (Next)
{
if ((!Next->Asl.Next) &&
(Next->Asl.ParseOpcode == PARSEOP_RETURN))
{
return (TRUE);
}
Next = ASL_GET_PEER_NODE (Next);
}
return (FALSE);
}
static ACPI_STATUS
LdLoadResourceElements (
ACPI_PARSE_OBJECT *Op,
ACPI_WALK_STATE *WalkState)
{
ACPI_PARSE_OBJECT *InitializerOp = NULL;
ACPI_NAMESPACE_NODE *Node;
ACPI_STATUS Status;
/*
* Enter the resource name into the namespace. Name must not already exist.
* This opens a scope, so later field names are guaranteed to be new/unique.
*/
Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Asl.Namepath,
ACPI_TYPE_LOCAL_RESOURCE, ACPI_IMODE_LOAD_PASS1,
ACPI_NS_NO_UPSEARCH | ACPI_NS_ERROR_IF_FOUND,
WalkState, &Node);
if (ACPI_FAILURE (Status))
{
if (Status == AE_ALREADY_EXISTS)
{
/* Actual node causing the error was saved in ParentMethod */
AslError (ASL_ERROR, ASL_MSG_NAME_EXISTS,
(ACPI_PARSE_OBJECT *) Op->Asl.ParentMethod, Op->Asl.Namepath);
return (AE_OK);
}
return (Status);
}
Node->Value = (UINT32) Op->Asl.Value.Integer;
Node->Op = Op;
Op->Asl.Node = Node;
/*
* Now enter the predefined fields, for easy lookup when referenced
* by the source ASL
*/
InitializerOp = ASL_GET_CHILD_NODE (Op);
while (InitializerOp)
{
if (InitializerOp->Asl.ExternalName)
{
Status = AcpiNsLookup (WalkState->ScopeInfo,
InitializerOp->Asl.ExternalName,
ACPI_TYPE_LOCAL_RESOURCE_FIELD,
ACPI_IMODE_LOAD_PASS1,
ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE,
NULL, &Node);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/*
* Store the field offset and length in the namespace node
* so it can be used when the field is referenced
*/
Node->Value = InitializerOp->Asl.Value.Tag.BitOffset;
Node->Length = InitializerOp->Asl.Value.Tag.BitLength;
InitializerOp->Asl.Node = Node;
Node->Op = InitializerOp;
}
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
}
return (AE_OK);
}
void
RsDoResourceTemplate (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *BufferLengthOp;
ACPI_PARSE_OBJECT *BufferOp;
ACPI_PARSE_OBJECT *DescriptorTypeOp;
ACPI_PARSE_OBJECT *LastOp = NULL;
UINT32 CurrentByteOffset = 0;
ASL_RESOURCE_NODE HeadRnode;
ASL_RESOURCE_NODE *PreviousRnode;
ASL_RESOURCE_NODE *Rnode;
UINT8 State;
/* Mark parent as containing a resource template */
if (Op->Asl.Parent)
{
Op->Asl.Parent->Asl.CompileFlags |= NODE_IS_RESOURCE_DESC;
}
/* ResourceTemplate Opcode is first (Op) */
/* Buffer Length node is first child */
BufferLengthOp = ASL_GET_CHILD_NODE (Op);
/* Buffer Op is first peer */
BufferOp = ASL_GET_PEER_NODE (BufferLengthOp);
/* First Descriptor type is next */
DescriptorTypeOp = ASL_GET_PEER_NODE (BufferOp);
/*
* Process all resource descriptors in the list
* Note: It is assumed that the EndTag node has been automatically
* inserted at the end of the template by the parser.
*/
State = ACPI_RSTATE_NORMAL;
PreviousRnode = &HeadRnode;
while (DescriptorTypeOp)
{
DescriptorTypeOp->Asl.CompileFlags |= NODE_IS_RESOURCE_DESC;
Rnode = RsDoOneResourceDescriptor (DescriptorTypeOp, CurrentByteOffset,
&State);
/*
* Update current byte offset to indicate the number of bytes from the
* start of the buffer. Buffer can include multiple descriptors, we
* must keep track of the offset of not only each descriptor, but each
* element (field) within each descriptor as well.
*/
CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
/* Get the next descriptor in the list */
LastOp = DescriptorTypeOp;
DescriptorTypeOp = ASL_GET_PEER_NODE (DescriptorTypeOp);
}
if (State == ACPI_RSTATE_DEPENDENT_LIST)
{
if (LastOp)
{
LastOp = LastOp->Asl.Parent;
}
AslError (ASL_ERROR, ASL_MSG_MISSING_ENDDEPENDENT, LastOp, NULL);
}
/*
* Transform the nodes into the following
*
* Op -> AML_BUFFER_OP
* First Child -> BufferLength
* Second Child -> Descriptor Buffer (raw byte data)
*/
Op->Asl.ParseOpcode = PARSEOP_BUFFER;
Op->Asl.AmlOpcode = AML_BUFFER_OP;
Op->Asl.CompileFlags = NODE_AML_PACKAGE | NODE_IS_RESOURCE_DESC;
BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
BufferLengthOp->Asl.Value.Integer = CurrentByteOffset;
(void) OpcSetOptimalIntegerSize (BufferLengthOp);
BufferOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
BufferOp->Asl.AmlOpcode = AML_RAW_DATA_CHAIN;
BufferOp->Asl.AmlOpcodeLength = 0;
BufferOp->Asl.AmlLength = CurrentByteOffset;
BufferOp->Asl.Value.Buffer = (UINT8 *) HeadRnode.Next;
BufferOp->Asl.CompileFlags |= NODE_IS_RESOURCE_DATA;
return;
}
static void
OpnDoBuffer (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *InitializerOp;
ACPI_PARSE_OBJECT *BufferLengthOp;
/* Optional arguments for this opcode with defaults */
UINT32 BufferLength = 0;
/* Opcode and package length first */
/* Buffer Length is next, followed by the initializer list */
BufferLengthOp = Op->Asl.Child;
InitializerOp = BufferLengthOp->Asl.Next;
/*
* If the BufferLength is not an INTEGER or was not specified in the ASL
* (DEFAULT_ARG), it is a TermArg that is
* evaluated at run-time, and we are therefore finished.
*/
if ((BufferLengthOp->Asl.ParseOpcode != PARSEOP_INTEGER) &&
(BufferLengthOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG))
{
return;
}
/*
* We want to count the number of items in the initializer list, because if
* it is larger than the buffer length, we will define the buffer size
* to be the size of the initializer list (as per the ACPI Specification)
*/
switch (InitializerOp->Asl.ParseOpcode)
{
case PARSEOP_INTEGER:
case PARSEOP_BYTECONST:
case PARSEOP_WORDCONST:
case PARSEOP_DWORDCONST:
/* The peer list contains the byte list (if any...) */
while (InitializerOp)
{
/* For buffers, this is a list of raw bytes */
InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BYTE;
InitializerOp->Asl.AmlLength = 1;
InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
BufferLength++;
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
}
break;
case PARSEOP_STRING_LITERAL:
/*
* Only one initializer, the string. Buffer must be big enough to hold
* the string plus the null termination byte
*/
BufferLength = strlen (InitializerOp->Asl.Value.String) + 1;
InitializerOp->Asl.AmlOpcode = AML_RAW_DATA_BUFFER;
InitializerOp->Asl.AmlLength = BufferLength;
InitializerOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
break;
case PARSEOP_RAW_DATA:
/* Buffer nodes are already initialized (e.g. Unicode operator) */
return;
case PARSEOP_DEFAULT_ARG:
break;
default:
AslError (ASL_ERROR, ASL_MSG_INVALID_OPERAND, InitializerOp,
"Unknown buffer initializer opcode");
printf ("Unknown buffer initializer opcode [%s]\n",
UtGetOpName (InitializerOp->Asl.ParseOpcode));
return;
}
/* Check if initializer list is longer than the buffer length */
if (BufferLengthOp->Asl.Value.Integer > BufferLength)
{
BufferLength = (UINT32) BufferLengthOp->Asl.Value.Integer;
}
if (!BufferLength)
{
/* No length AND no items -- issue notice */
AslError (ASL_REMARK, ASL_MSG_BUFFER_LENGTH, BufferLengthOp, NULL);
/* But go ahead and put the buffer length of zero into the AML */
}
/*
* Just set the buffer size node to be the buffer length, regardless
* of whether it was previously an integer or a default_arg placeholder
*/
BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
BufferLengthOp->Asl.AmlOpcode = AML_DWORD_OP;
BufferLengthOp->Asl.Value.Integer = BufferLength;
(void) OpcSetOptimalIntegerSize (BufferLengthOp);
/* Remaining nodes are handled via the tree walk */
}
ASL_RESOURCE_NODE *
RsDoInterruptDescriptor (
ASL_RESOURCE_INFO *Info)
{
AML_RESOURCE *Descriptor;
AML_RESOURCE *Rover = NULL;
ACPI_PARSE_OBJECT *InitializerOp;
ASL_RESOURCE_NODE *Rnode;
UINT16 StringLength = 0;
UINT32 OptionIndex = 0;
UINT32 CurrentByteOffset;
UINT32 i;
BOOLEAN HasResSourceIndex = FALSE;
UINT8 ResSourceIndex = 0;
UINT8 *ResSourceString = NULL;
InitializerOp = Info->DescriptorTypeOp->Asl.Child;
CurrentByteOffset = Info->CurrentByteOffset;
StringLength = RsGetStringDataLength (InitializerOp);
/* Count the interrupt numbers */
for (i = 0; InitializerOp; i++)
{
InitializerOp = ASL_GET_PEER_NODE (InitializerOp);
if (i <= 6)
{
if (i == 3 &&
InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
/*
* ResourceSourceIndex was specified, always make room for
* it, even if the ResourceSource was omitted.
*/
OptionIndex++;
}
continue;
}
OptionIndex += 4;
}
InitializerOp = Info->DescriptorTypeOp->Asl.Child;
Rnode = RsAllocateResourceNode (sizeof (AML_RESOURCE_EXTENDED_IRQ) +
1 + OptionIndex + StringLength);
Descriptor = Rnode->Buffer;
Descriptor->ExtendedIrq.DescriptorType = ACPI_RESOURCE_NAME_EXTENDED_IRQ;
/*
* Initial descriptor length -- may be enlarged if there are
* optional fields present
*/
Descriptor->ExtendedIrq.ResourceLength = 2; /* Flags and table length byte */
Descriptor->ExtendedIrq.InterruptCount = 0;
Rover = ACPI_CAST_PTR (AML_RESOURCE,
(&(Descriptor->ExtendedIrq.Interrupts[0])));
/* Process all child initialization nodes */
for (i = 0; InitializerOp; i++)
{
switch (i)
{
case 0: /* Resource Usage (Default: consumer (1) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 0, 1);
break;
case 1: /* Interrupt Type (or Mode - edge/level) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 1, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTTYPE,
CurrentByteOffset + ASL_RESDESC_OFFSET (ExtendedIrq.Flags), 1);
break;
case 2: /* Interrupt Level (or Polarity - Active high/low) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 2, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTLEVEL,
CurrentByteOffset + ASL_RESDESC_OFFSET (ExtendedIrq.Flags), 2);
break;
case 3: /* Share Type - Default: exclusive (0) */
RsSetFlagBits (&Descriptor->ExtendedIrq.Flags, InitializerOp, 3, 0);
RsCreateBitField (InitializerOp, ACPI_RESTAG_INTERRUPTSHARE,
CurrentByteOffset + ASL_RESDESC_OFFSET (ExtendedIrq.Flags), 3);
break;
case 4: /* ResSourceIndex [Optional Field - BYTE] */
if (InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)
{
HasResSourceIndex = TRUE;
ResSourceIndex = (UINT8) InitializerOp->Asl.Value.Integer;
}
break;
case 5: /* ResSource [Optional Field - STRING] */
if ((InitializerOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG) &&
(InitializerOp->Asl.Value.String))
{
if (StringLength)
{
ResSourceString = (UINT8 *) InitializerOp->Asl.Value.String;
}
/* ResourceSourceIndex must also be valid */
if (!HasResSourceIndex)
{
AslError (ASL_ERROR, ASL_MSG_RESOURCE_INDEX,
InitializerOp, NULL);
}
}
#if 0
/*
* Not a valid ResourceSource, ResourceSourceIndex must also
* be invalid
*/
else if (HasResSourceIndex)
{
AslError (ASL_ERROR, ASL_MSG_RESOURCE_SOURCE,
InitializerOp, NULL);
}
#endif
break;
case 6: /* ResourceTag */
UtAttachNamepathToOwner (Info->DescriptorTypeOp, InitializerOp);
break;
default:
/*
* Interrupt Numbers come through here, repeatedly
*/
/* Maximum 255 interrupts allowed for this descriptor */
if (Descriptor->ExtendedIrq.InterruptCount == 255)
{
AslError (ASL_ERROR, ASL_MSG_EX_INTERRUPT_LIST,
InitializerOp, NULL);
return (Rnode);
}
/* Each interrupt number must be a 32-bit value */
if (InitializerOp->Asl.Value.Integer > ACPI_UINT32_MAX)
{
AslError (ASL_ERROR, ASL_MSG_EX_INTERRUPT_NUMBER,
InitializerOp, NULL);
}
/* Save the integer and move pointer to the next one */
Rover->DwordItem = (UINT32) InitializerOp->Asl.Value.Integer;
Rover = ACPI_ADD_PTR (AML_RESOURCE, &(Rover->DwordItem), 4);
Descriptor->ExtendedIrq.InterruptCount++;
Descriptor->ExtendedIrq.ResourceLength += 4;
/* Case 7: First interrupt number in list */
if (i == 7)
{
if (InitializerOp->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
{
/* Must be at least one interrupt */
AslError (ASL_ERROR, ASL_MSG_EX_INTERRUPT_LIST_MIN,
InitializerOp, NULL);
}
/* Check now for duplicates in list */
RsCheckListForDuplicates (InitializerOp);
/* Create a named field at the start of the list */
RsCreateDwordField (InitializerOp, ACPI_RESTAG_INTERRUPT,
CurrentByteOffset +
ASL_RESDESC_OFFSET (ExtendedIrq.Interrupts[0]));
}
}
InitializerOp = RsCompleteNodeAndGetNext (InitializerOp);
}
/* Add optional ResSourceIndex if present */
if (HasResSourceIndex)
{
Rover->ByteItem = ResSourceIndex;
Rover = ACPI_ADD_PTR (AML_RESOURCE, &(Rover->ByteItem), 1);
Descriptor->ExtendedIrq.ResourceLength += 1;
}
/* Add optional ResSource string if present */
if (StringLength && ResSourceString)
{
strcpy ((char *) Rover, (char *) ResSourceString);
Rover = ACPI_ADD_PTR (
AML_RESOURCE, &(Rover->ByteItem), StringLength);
Descriptor->ExtendedIrq.ResourceLength = (UINT16)
(Descriptor->ExtendedIrq.ResourceLength + StringLength);
}
Rnode->BufferLength =
(ASL_RESDESC_OFFSET (ExtendedIrq.Interrupts[0]) -
ASL_RESDESC_OFFSET (ExtendedIrq.DescriptorType))
+ OptionIndex + StringLength;
return (Rnode);
}
void
RsDoResourceTemplate (
ACPI_PARSE_OBJECT *Op)
{
ACPI_PARSE_OBJECT *BufferLengthOp;
ACPI_PARSE_OBJECT *BufferOp;
ACPI_PARSE_OBJECT *DescriptorTypeOp;
ACPI_PARSE_OBJECT *LastOp = NULL;
ASL_RESOURCE_DESC *Descriptor;
UINT32 CurrentByteOffset = 0;
ASL_RESOURCE_NODE HeadRnode;
ASL_RESOURCE_NODE *PreviousRnode;
ASL_RESOURCE_NODE *Rnode;
UINT8 State;
/* ResourceTemplate Opcode is first (Op) */
/* Buffer Length node is first child */
BufferLengthOp = ASL_GET_CHILD_NODE (Op);
/* Buffer Op is first peer */
BufferOp = ASL_GET_PEER_NODE (BufferLengthOp);
/* First Descriptor type is next */
DescriptorTypeOp = ASL_GET_PEER_NODE (BufferOp);
/* Process all resource descriptors in the list */
State = ACPI_RSTATE_NORMAL;
PreviousRnode = &HeadRnode;
while (DescriptorTypeOp)
{
Rnode = RsDoOneResourceDescriptor (DescriptorTypeOp, CurrentByteOffset, &State);
/*
* Update current byte offset to indicate the number of bytes from the
* start of the buffer. Buffer can include multiple descriptors, we
* must keep track of the offset of not only each descriptor, but each
* element (field) within each descriptor as well.
*/
CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
/* Get the next descriptor in the list */
LastOp = DescriptorTypeOp;
DescriptorTypeOp = ASL_GET_PEER_NODE (DescriptorTypeOp);
}
if (State == ACPI_RSTATE_DEPENDENT_LIST)
{
if (LastOp)
{
LastOp = LastOp->Asl.Parent;
}
AslError (ASL_ERROR, ASL_MSG_MISSING_ENDDEPENDENT, LastOp, NULL);
}
/*
* Insert the EndTag descriptor after all other descriptors have been processed
*/
Rnode = RsAllocateResourceNode (sizeof (ASL_END_TAG_DESC));
Descriptor = Rnode->Buffer;
Descriptor->Et.DescriptorType = ACPI_RDESC_TYPE_END_TAG |
ASL_RDESC_END_TAG_SIZE;
Descriptor->Et.Checksum = 0;
CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);
/*
* Transform the nodes into the following
*
* Op -> AML_BUFFER_OP
* First Child -> BufferLength
* Second Child -> Descriptor Buffer (raw byte data)
*/
Op->Asl.ParseOpcode = PARSEOP_BUFFER;
Op->Asl.AmlOpcode = AML_BUFFER_OP;
Op->Asl.CompileFlags = NODE_AML_PACKAGE;
BufferLengthOp->Asl.ParseOpcode = PARSEOP_INTEGER;
BufferLengthOp->Asl.Value.Integer = CurrentByteOffset;
(void) OpcSetOptimalIntegerSize (BufferLengthOp);
BufferOp->Asl.ParseOpcode = PARSEOP_RAW_DATA;
BufferOp->Asl.AmlOpcode = AML_RAW_DATA_CHAIN;
BufferOp->Asl.AmlOpcodeLength = 0;
BufferOp->Asl.AmlLength = CurrentByteOffset;
BufferOp->Asl.Value.Buffer = (UINT8 *) HeadRnode.Next;
return;
}
