ACPI_STATUS AcpiUtEvaluateNumericObject ( char *ObjectName, ACPI_NAMESPACE_NODE *DeviceNode, ACPI_INTEGER *Address) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (UtEvaluateNumericObject); Status = AcpiUtEvaluateObject (DeviceNode, ObjectName, ACPI_BTYPE_INTEGER, &ObjDesc); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Get the returned Integer */ *Address = ObjDesc->Integer.Value; /* On exit, we must delete the return object */ AcpiUtRemoveReference (ObjDesc); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiUtExecute_SUB ( ACPI_NAMESPACE_NODE *DeviceNode, ACPI_PNP_DEVICE_ID **ReturnId) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_PNP_DEVICE_ID *Sub; UINT32 Length; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (UtExecute_SUB); Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__SUB, ACPI_BTYPE_STRING, &ObjDesc); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Get the size of the String to be returned, includes null terminator */ Length = ObjDesc->String.Length + 1; /* Allocate a buffer for the SUB */ Sub = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PNP_DEVICE_ID) + (ACPI_SIZE) Length); if (!Sub) { Status = AE_NO_MEMORY; goto Cleanup; } /* Area for the string starts after PNP_DEVICE_ID struct */ Sub->String = ACPI_ADD_PTR (char, Sub, sizeof (ACPI_PNP_DEVICE_ID)); /* Simply copy existing string */ ACPI_STRCPY (Sub->String, ObjDesc->String.Pointer); Sub->Length = Length; *ReturnId = Sub; Cleanup: /* On exit, we must delete the return object */ AcpiUtRemoveReference (ObjDesc); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiUtExecute_STA ( ACPI_NAMESPACE_NODE *DeviceNode, UINT32 *Flags) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (UtExecute_STA); Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__STA, ACPI_BTYPE_INTEGER, &ObjDesc); if (ACPI_FAILURE (Status)) { if (AE_NOT_FOUND == Status) { ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "_STA on %4.4s was not found, assuming device is present\n", AcpiUtGetNodeName (DeviceNode))); *Flags = ACPI_UINT32_MAX; Status = AE_OK; } return_ACPI_STATUS (Status); } /* Extract the status flags */ *Flags = (UINT32) ObjDesc->Integer.Value; /* On exit, we must delete the return object */ AcpiUtRemoveReference (ObjDesc); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiUtExecute_UID ( ACPI_NAMESPACE_NODE *DeviceNode, ACPI_DEVICE_ID *Uid) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (UtExecute_UID); Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__UID, 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 UID to string */ AcpiExUnsignedIntegerToString (ObjDesc->Integer.Value, Uid->Value); } else { /* Copy the String UID from the returned object */ AcpiUtCopyIdString (Uid->Value, ObjDesc->String.Pointer, sizeof (Uid->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); }
ACPI_STATUS AcpiEvMatchPrwAndGpe ( ACPI_HANDLE ObjHandle, UINT32 Level, void *Context, void **ReturnValue) { ACPI_GPE_WALK_INFO *WalkInfo = ACPI_CAST_PTR (ACPI_GPE_WALK_INFO, Context); ACPI_NAMESPACE_NODE *GpeDevice; ACPI_GPE_BLOCK_INFO *GpeBlock; ACPI_NAMESPACE_NODE *TargetGpeDevice; ACPI_NAMESPACE_NODE *PrwNode; ACPI_GPE_EVENT_INFO *GpeEventInfo; ACPI_OPERAND_OBJECT *PkgDesc; ACPI_OPERAND_OBJECT *ObjDesc; UINT32 GpeNumber; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (EvMatchPrwAndGpe); /* Check for a _PRW method under this device */ Status = AcpiNsGetNode (ObjHandle, METHOD_NAME__PRW, ACPI_NS_NO_UPSEARCH, &PrwNode); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (AE_OK); } /* Check if requested OwnerId matches this OwnerId */ if ((WalkInfo->ExecuteByOwnerId) && (PrwNode->OwnerId != WalkInfo->OwnerId)) { return_ACPI_STATUS (AE_OK); } /* Execute the _PRW */ Status = AcpiUtEvaluateObject (PrwNode, NULL, ACPI_BTYPE_PACKAGE, &PkgDesc); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (AE_OK); } /* The returned _PRW package must have at least two elements */ if (PkgDesc->Package.Count < 2) { goto Cleanup; } /* Extract pointers from the input context */ GpeDevice = WalkInfo->GpeDevice; GpeBlock = WalkInfo->GpeBlock; /* * The _PRW object must return a package, we are only interested * in the first element */ ObjDesc = PkgDesc->Package.Elements[0]; if (ObjDesc->Common.Type == ACPI_TYPE_INTEGER) { /* Use FADT-defined GPE device (from definition of _PRW) */ TargetGpeDevice = NULL; if (GpeDevice) { TargetGpeDevice = AcpiGbl_FadtGpeDevice; } /* Integer is the GPE number in the FADT described GPE blocks */ GpeNumber = (UINT32) ObjDesc->Integer.Value; } else if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE) { /* Package contains a GPE reference and GPE number within a GPE block */ if ((ObjDesc->Package.Count < 2) || ((ObjDesc->Package.Elements[0])->Common.Type != ACPI_TYPE_LOCAL_REFERENCE) || ((ObjDesc->Package.Elements[1])->Common.Type != ACPI_TYPE_INTEGER)) { goto Cleanup; } /* Get GPE block reference and decode */ TargetGpeDevice = ObjDesc->Package.Elements[0]->Reference.Node; GpeNumber = (UINT32) ObjDesc->Package.Elements[1]->Integer.Value; } else { /* Unknown type, just ignore it */ goto Cleanup; } /* Get the GpeEventInfo for this GPE */ if (GpeDevice) { /* * Is this GPE within this block? * * TRUE if and only if these conditions are true: * 1) The GPE devices match. * 2) The GPE index(number) is within the range of the Gpe Block * associated with the GPE device. */ if (GpeDevice != TargetGpeDevice) { goto Cleanup; } GpeEventInfo = AcpiEvLowGetGpeInfo (GpeNumber, GpeBlock); } else { /* GpeDevice is NULL, just match the TargetDevice and GpeNumber */ GpeEventInfo = AcpiEvGetGpeEventInfo (TargetGpeDevice, GpeNumber); } if (GpeEventInfo) { if (!(GpeEventInfo->Flags & ACPI_GPE_CAN_WAKE)) { /* This GPE can wake the system */ GpeEventInfo->Flags |= ACPI_GPE_CAN_WAKE; WalkInfo->Count++; } } Cleanup: AcpiUtRemoveReference (PkgDesc); return_ACPI_STATUS (AE_OK); }
ACPI_STATUS AcpiUtExecute_UID ( ACPI_NAMESPACE_NODE *DeviceNode, ACPI_DEVICE_ID **ReturnId) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_DEVICE_ID *Uid; UINT32 Length; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (UtExecute_UID); Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__UID, 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_MAX64_DECIMAL_DIGITS + 1; } else { Length = ObjDesc->String.Length + 1; } /* Allocate a buffer for the UID */ Uid = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_DEVICE_ID) + (ACPI_SIZE) Length); if (!Uid) { Status = AE_NO_MEMORY; goto Cleanup; } /* Area for the string starts after DEVICE_ID struct */ Uid->String = ACPI_ADD_PTR (char, Uid, sizeof (ACPI_DEVICE_ID)); /* Convert an Integer to string, or just copy an existing string */ if (ObjDesc->Common.Type == ACPI_TYPE_INTEGER) { AcpiExIntegerToString (Uid->String, ObjDesc->Integer.Value); } else { AcpiUtCopyIdString (Uid->String, ObjDesc->String.Pointer); } Uid->Length = Length; *ReturnId = Uid; Cleanup: /* On exit, we must delete the return object */ AcpiUtRemoveReference (ObjDesc); return_ACPI_STATUS (Status); }
ACPI_STATUS AcpiUtExecute_CLS ( ACPI_NAMESPACE_NODE *DeviceNode, ACPI_PNP_DEVICE_ID **ReturnId) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_OPERAND_OBJECT **ClsObjects; UINT32 Count; ACPI_PNP_DEVICE_ID *Cls; UINT32 Length; ACPI_STATUS Status; UINT8 ClassCode[3] = {0, 0, 0}; ACPI_FUNCTION_TRACE (UtExecute_CLS); Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__CLS, ACPI_BTYPE_PACKAGE, &ObjDesc); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Get the size of the String to be returned, includes null terminator */ Length = ACPI_PCICLS_STRING_SIZE; ClsObjects = ObjDesc->Package.Elements; Count = ObjDesc->Package.Count; if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE) { if (Count > 0 && ClsObjects[0]->Common.Type == ACPI_TYPE_INTEGER) { ClassCode[0] = (UINT8) ClsObjects[0]->Integer.Value; } if (Count > 1 && ClsObjects[1]->Common.Type == ACPI_TYPE_INTEGER) { ClassCode[1] = (UINT8) ClsObjects[1]->Integer.Value; } if (Count > 2 && ClsObjects[2]->Common.Type == ACPI_TYPE_INTEGER) { ClassCode[2] = (UINT8) ClsObjects[2]->Integer.Value; } } /* Allocate a buffer for the CLS */ Cls = ACPI_ALLOCATE_ZEROED ( sizeof (ACPI_PNP_DEVICE_ID) + (ACPI_SIZE) Length); if (!Cls) { Status = AE_NO_MEMORY; goto Cleanup; } /* Area for the string starts after PNP_DEVICE_ID struct */ Cls->String = ACPI_ADD_PTR (char, Cls, sizeof (ACPI_PNP_DEVICE_ID)); /* Simply copy existing string */ AcpiExPciClsToString (Cls->String, ClassCode); Cls->Length = Length; *ReturnId = Cls; Cleanup: /* On exit, we must delete the return object */ AcpiUtRemoveReference (ObjDesc); return_ACPI_STATUS (Status); }
static ACPI_STATUS AcpiEvMatchPrwAndGpe ( ACPI_HANDLE ObjHandle, UINT32 Level, void *Info, void **ReturnValue) { ACPI_GPE_WALK_INFO *GpeInfo = (void *) Info; ACPI_NAMESPACE_NODE *GpeDevice; ACPI_GPE_BLOCK_INFO *GpeBlock; ACPI_NAMESPACE_NODE *TargetGpeDevice; ACPI_GPE_EVENT_INFO *GpeEventInfo; ACPI_OPERAND_OBJECT *PkgDesc; ACPI_OPERAND_OBJECT *ObjDesc; UINT32 GpeNumber; ACPI_STATUS Status; ACPI_FUNCTION_TRACE (EvMatchPrwAndGpe); /* Check for a _PRW method under this device */ Status = AcpiUtEvaluateObject (ObjHandle, METHOD_NAME__PRW, ACPI_BTYPE_PACKAGE, &PkgDesc); if (ACPI_FAILURE (Status)) { /* Ignore all errors from _PRW, we don't want to abort the subsystem */ return_ACPI_STATUS (AE_OK); } /* The returned _PRW package must have at least two elements */ if (PkgDesc->Package.Count < 2) { goto Cleanup; } /* Extract pointers from the input context */ GpeDevice = GpeInfo->GpeDevice; GpeBlock = GpeInfo->GpeBlock; /* * The _PRW object must return a package, we are only interested in the * first element */ ObjDesc = PkgDesc->Package.Elements[0]; if (ObjDesc->Common.Type == ACPI_TYPE_INTEGER) { /* Use FADT-defined GPE device (from definition of _PRW) */ TargetGpeDevice = AcpiGbl_FadtGpeDevice; /* Integer is the GPE number in the FADT described GPE blocks */ GpeNumber = (UINT32) ObjDesc->Integer.Value; } else if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE) { /* Package contains a GPE reference and GPE number within a GPE block */ if ((ObjDesc->Package.Count < 2) || ((ObjDesc->Package.Elements[0])->Common.Type != ACPI_TYPE_LOCAL_REFERENCE) || ((ObjDesc->Package.Elements[1])->Common.Type != ACPI_TYPE_INTEGER)) { goto Cleanup; } /* Get GPE block reference and decode */ TargetGpeDevice = ObjDesc->Package.Elements[0]->Reference.Node; GpeNumber = (UINT32) ObjDesc->Package.Elements[1]->Integer.Value; } else { /* Unknown type, just ignore it */ goto Cleanup; } /* * Is this GPE within this block? * * TRUE if and only if these conditions are true: * 1) The GPE devices match. * 2) The GPE index(number) is within the range of the Gpe Block * associated with the GPE device. */ if ((GpeDevice == TargetGpeDevice) && (GpeNumber >= GpeBlock->BlockBaseNumber) && (GpeNumber < GpeBlock->BlockBaseNumber + (GpeBlock->RegisterCount * 8))) { GpeEventInfo = &GpeBlock->EventInfo[GpeNumber - GpeBlock->BlockBaseNumber]; /* Mark GPE for WAKE-ONLY but WAKE_DISABLED */ GpeEventInfo->Flags &= ~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED); Status = AcpiEvSetGpeType (GpeEventInfo, ACPI_GPE_TYPE_WAKE); if (ACPI_FAILURE (Status)) { goto Cleanup; } Status = AcpiEvUpdateGpeEnableMasks (GpeEventInfo, ACPI_GPE_DISABLE); } Cleanup: AcpiUtRemoveReference (PkgDesc); return_ACPI_STATUS (AE_OK); }
ACPI_STATUS AcpiUtExecute_CID ( ACPI_NAMESPACE_NODE *DeviceNode, ACPI_COMPATIBLE_ID_LIST **ReturnCidList) { ACPI_OPERAND_OBJECT *ObjDesc; ACPI_STATUS Status; UINT32 Count; UINT32 Size; ACPI_COMPATIBLE_ID_LIST *CidList; 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 number of _CIDs returned */ Count = 1; if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE) { Count = ObjDesc->Package.Count; } /* Allocate a worst-case buffer for the _CIDs */ Size = (((Count - 1) * sizeof (ACPI_COMPATIBLE_ID)) + sizeof (ACPI_COMPATIBLE_ID_LIST)); CidList = ACPI_ALLOCATE_ZEROED ((ACPI_SIZE) Size); if (!CidList) { return_ACPI_STATUS (AE_NO_MEMORY); } /* Init CID list */ CidList->Count = Count; CidList->Size = Size; /* * A _CID can return either a single compatible ID or a package of * compatible IDs. Each compatible ID can be one of the following: * 1) Integer (32 bit compressed EISA ID) or * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss") */ /* The _CID object can be either a single CID or a package (list) of CIDs */ if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE) { /* Translate each package element */ for (i = 0; i < Count; i++) { Status = AcpiUtTranslateOneCid (ObjDesc->Package.Elements[i], &CidList->Id[i]); if (ACPI_FAILURE (Status)) { break; } } } else { /* Only one CID, translate to a string */ Status = AcpiUtTranslateOneCid (ObjDesc, CidList->Id); } /* Cleanup on error */ if (ACPI_FAILURE (Status)) { ACPI_FREE (CidList); } else { *ReturnCidList = CidList; } /* On exit, we must delete the _CID return object */ AcpiUtRemoveReference (ObjDesc); return_ACPI_STATUS (Status); }