static ACPI_STATUS
AcpiUtTranslateOneCid (
ACPI_OPERAND_OBJECT *ObjDesc,
ACPI_COMPATIBLE_ID *OneCid)
{
switch (ObjDesc->Common.Type)
{
case ACPI_TYPE_INTEGER:
/* Convert the Numeric CID to string */
AcpiExEisaIdToString ((UINT32) ObjDesc->Integer.Value, OneCid->Value);
return (AE_OK);
case ACPI_TYPE_STRING:
if (ObjDesc->String.Length > ACPI_MAX_CID_LENGTH)
{
return (AE_AML_STRING_LIMIT);
}
/* Copy the String CID from the returned object */
AcpiUtCopyIdString (OneCid->Value, ObjDesc->String.Pointer,
ACPI_MAX_CID_LENGTH);
return (AE_OK);
default:
return (AE_TYPE);
}
}
char *
MpGetHidValue (
ACPI_NAMESPACE_NODE *DeviceNode)
{
ACPI_NAMESPACE_NODE *HidNode;
char *HidString;
ACPI_STATUS Status;
Status = AcpiNsGetNode (DeviceNode, METHOD_NAME__HID,
ACPI_NS_NO_UPSEARCH, &HidNode);
if (ACPI_FAILURE (Status))
{
goto ErrorExit;
}
/* If only partial namespace, get the _HID from the parse tree */
if (!HidNode->Object)
{
return (MpGetHidFromParseTree (HidNode));
}
/* Handle the different _HID flavors */
switch (HidNode->Type)
{
case ACPI_TYPE_STRING:
return (HidNode->Object->String.Pointer);
case ACPI_TYPE_INTEGER:
/* Convert EISAID to a string */
HidString = UtLocalCacheCalloc (ACPI_EISAID_STRING_SIZE);
AcpiExEisaIdToString (HidString, HidNode->Object->Integer.Value);
return (HidString);
case ACPI_TYPE_METHOD:
return ("-Method-");
default:
FlPrintFile (ASL_FILE_MAP_OUTPUT, "BAD HID TYPE: %u", HidNode->Type);
break;
}
ErrorExit:
return ("-No HID-");
}
char *
MpGetHidFromParseTree (
ACPI_NAMESPACE_NODE *HidNode)
{
ACPI_PARSE_OBJECT *Op;
ACPI_PARSE_OBJECT *Arg;
char *HidString;
Op = HidNode->Op;
if (!Op)
{
/* Object is not resolved, probably an External */
return ("Unresolved Symbol - referenced but not defined in this table");
}
switch (Op->Asl.ParseOpcode)
{
case PARSEOP_NAME:
Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */
Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */
switch (Arg->Asl.ParseOpcode)
{
case PARSEOP_STRING_LITERAL:
return (Arg->Asl.Value.String);
case PARSEOP_INTEGER:
/* Convert EISAID to a string */
HidString = UtLocalCacheCalloc (ACPI_EISAID_STRING_SIZE);
AcpiExEisaIdToString (HidString, Arg->Asl.Value.Integer);
return (HidString);
default:
return ("UNKNOWN");
}
default:
return ("-No HID-");
}
}
char *
MpGetHidFromParseTree (
ACPI_NAMESPACE_NODE *HidNode)
{
ACPI_PARSE_OBJECT *Op;
ACPI_PARSE_OBJECT *Arg;
char *HidString;
Op = HidNode->Op;
switch (Op->Asl.ParseOpcode)
{
case PARSEOP_NAME:
Arg = Op->Asl.Child; /* Get the NameSeg/NameString node */
Arg = Arg->Asl.Next; /* First peer is the object to be associated with the name */
switch (Arg->Asl.ParseOpcode)
{
case PARSEOP_STRING_LITERAL:
return (Arg->Asl.Value.String);
case PARSEOP_INTEGER:
/* Convert EISAID to a string */
HidString = UtStringCacheCalloc (ACPI_EISAID_STRING_SIZE);
AcpiExEisaIdToString (HidString, Arg->Asl.Value.Integer);
return (HidString);
default:
return ("UNKNOWN");
}
default:
return ("-No HID-");
}
}
ACPI_STATUS
AcpiUtExecute_HID (
ACPI_NAMESPACE_NODE *DeviceNode,
ACPI_DEVICE_ID *Hid)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (UtExecute_HID);
Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__HID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, &ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
if (ObjDesc->Common.Type == ACPI_TYPE_INTEGER)
{
/* Convert the Numeric HID to string */
AcpiExEisaIdToString ((UINT32) ObjDesc->Integer.Value, Hid->Value);
}
else
{
/* Copy the String HID from the returned object */
AcpiUtCopyIdString (Hid->Value, ObjDesc->String.Pointer,
sizeof (Hid->Value));
}
/* On exit, we must delete the return object */
AcpiUtRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiUtExecute_HID (
ACPI_NAMESPACE_NODE *DeviceNode,
ACPI_PNP_DEVICE_ID **ReturnId)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_PNP_DEVICE_ID *Hid;
UINT32 Length;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (UtExecute_HID);
Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__HID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, &ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Get the size of the String to be returned, includes null terminator */
if (ObjDesc->Common.Type == ACPI_TYPE_INTEGER)
{
Length = ACPI_EISAID_STRING_SIZE;
}
else
{
Length = ObjDesc->String.Length + 1;
}
/* Allocate a buffer for the HID */
Hid = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PNP_DEVICE_ID) + (ACPI_SIZE) Length);
if (!Hid)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/* Area for the string starts after PNP_DEVICE_ID struct */
Hid->String = ACPI_ADD_PTR (char, Hid, sizeof (ACPI_PNP_DEVICE_ID));
/* Convert EISAID to a string or simply copy existing string */
if (ObjDesc->Common.Type == ACPI_TYPE_INTEGER)
{
AcpiExEisaIdToString (Hid->String, ObjDesc->Integer.Value);
}
else
{
ACPI_STRCPY (Hid->String, ObjDesc->String.Pointer);
}
Hid->Length = Length;
*ReturnId = Hid;
Cleanup:
/* On exit, we must delete the return object */
AcpiUtRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiUtExecute_CID (
ACPI_NAMESPACE_NODE *DeviceNode,
ACPI_PNP_DEVICE_ID_LIST **ReturnCidList)
{
ACPI_OPERAND_OBJECT **CidObjects;
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_PNP_DEVICE_ID_LIST *CidList;
char *NextIdString;
UINT32 StringAreaSize;
UINT32 Length;
UINT32 CidListSize;
ACPI_STATUS Status;
UINT32 Count;
UINT32 i;
ACPI_FUNCTION_TRACE (UtExecute_CID);
/* Evaluate the _CID method for this device */
Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__CID,
ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING | ACPI_BTYPE_PACKAGE,
&ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* Get the count and size of the returned _CIDs. _CID can return either
* a Package of Integers/Strings or a single Integer or String.
* Note: This section also validates that all CID elements are of the
* correct type (Integer or String).
*/
if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE)
{
Count = ObjDesc->Package.Count;
CidObjects = ObjDesc->Package.Elements;
}
else /* Single Integer or String CID */
{
Count = 1;
CidObjects = &ObjDesc;
}
StringAreaSize = 0;
for (i = 0; i < Count; i++)
{
/* String lengths include null terminator */
switch (CidObjects[i]->Common.Type)
{
case ACPI_TYPE_INTEGER:
StringAreaSize += ACPI_EISAID_STRING_SIZE;
break;
case ACPI_TYPE_STRING:
StringAreaSize += CidObjects[i]->String.Length + 1;
break;
default:
Status = AE_TYPE;
goto Cleanup;
}
}
/*
* Now that we know the length of the CIDs, allocate return buffer:
* 1) Size of the base structure +
* 2) Size of the CID PNP_DEVICE_ID array +
* 3) Size of the actual CID strings
*/
CidListSize = sizeof (ACPI_PNP_DEVICE_ID_LIST) +
((Count - 1) * sizeof (ACPI_PNP_DEVICE_ID)) +
StringAreaSize;
CidList = ACPI_ALLOCATE_ZEROED (CidListSize);
if (!CidList)
{
Status = AE_NO_MEMORY;
goto Cleanup;
}
/* Area for CID strings starts after the CID PNP_DEVICE_ID array */
NextIdString = ACPI_CAST_PTR (char, CidList->Ids) +
((ACPI_SIZE) Count * sizeof (ACPI_PNP_DEVICE_ID));
/* Copy/convert the CIDs to the return buffer */
for (i = 0; i < Count; i++)
{
if (CidObjects[i]->Common.Type == ACPI_TYPE_INTEGER)
{
/* Convert the Integer (EISAID) CID to a string */
AcpiExEisaIdToString (NextIdString, CidObjects[i]->Integer.Value);
Length = ACPI_EISAID_STRING_SIZE;
}
else /* ACPI_TYPE_STRING */
{
/* Copy the String CID from the returned object */
ACPI_STRCPY (NextIdString, CidObjects[i]->String.Pointer);
Length = CidObjects[i]->String.Length + 1;
}
CidList->Ids[i].String = NextIdString;
CidList->Ids[i].Length = Length;
NextIdString += Length;
}
/* Finish the CID list */
CidList->Count = Count;
CidList->ListSize = CidListSize;
*ReturnCidList = CidList;
Cleanup:
/* On exit, we must delete the _CID return object */
AcpiUtRemoveReference (ObjDesc);
return_ACPI_STATUS (Status);
}
