ACPI_STATUS
AcpiWalkResources (
ACPI_HANDLE DeviceHandle,
char *Name,
ACPI_WALK_RESOURCE_CALLBACK UserFunction,
void *Context)
{
ACPI_STATUS Status;
ACPI_BUFFER Buffer;
ACPI_FUNCTION_TRACE (AcpiWalkResources);
/* Parameter validation */
if (!DeviceHandle || !UserFunction || !Name ||
(!ACPI_COMPARE_NAME (Name, METHOD_NAME__CRS) &&
!ACPI_COMPARE_NAME (Name, METHOD_NAME__PRS) &&
!ACPI_COMPARE_NAME (Name, METHOD_NAME__AEI) &&
!ACPI_COMPARE_NAME (Name, METHOD_NAME__DMA)))
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Get the _CRS/_PRS/_AEI/_DMA resource list */
Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
Status = AcpiRsGetMethodData (DeviceHandle, Name, &Buffer);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Walk the resource list and cleanup */
Status = AcpiWalkResourceBuffer (&Buffer, UserFunction, Context);
ACPI_FREE (Buffer.Pointer);
return_ACPI_STATUS (Status);
}
static ACPI_STATUS
AcpiDbDeviceResources (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_NAMESPACE_NODE *Node;
ACPI_NAMESPACE_NODE *PrtNode = NULL;
ACPI_NAMESPACE_NODE *CrsNode = NULL;
ACPI_NAMESPACE_NODE *PrsNode = NULL;
ACPI_NAMESPACE_NODE *AeiNode = NULL;
char *ParentPath;
ACPI_BUFFER ReturnBuffer;
ACPI_STATUS Status;
Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
ParentPath = AcpiNsGetExternalPathname (Node);
if (!ParentPath)
{
return (AE_NO_MEMORY);
}
/* Get handles to the resource methods for this device */
(void) AcpiGetHandle (Node, METHOD_NAME__PRT, ACPI_CAST_PTR (ACPI_HANDLE, &PrtNode));
(void) AcpiGetHandle (Node, METHOD_NAME__CRS, ACPI_CAST_PTR (ACPI_HANDLE, &CrsNode));
(void) AcpiGetHandle (Node, METHOD_NAME__PRS, ACPI_CAST_PTR (ACPI_HANDLE, &PrsNode));
(void) AcpiGetHandle (Node, METHOD_NAME__AEI, ACPI_CAST_PTR (ACPI_HANDLE, &AeiNode));
if (!PrtNode && !CrsNode && !PrsNode && !AeiNode)
{
goto Cleanup; /* Nothing to do */
}
AcpiOsPrintf ("\nDevice: %s\n", ParentPath);
/* Prepare for a return object of arbitrary size */
ReturnBuffer.Pointer = AcpiGbl_DbBuffer;
ReturnBuffer.Length = ACPI_DEBUG_BUFFER_SIZE;
/* _PRT */
if (PrtNode)
{
AcpiOsPrintf ("Evaluating _PRT\n");
Status = AcpiEvaluateObject (PrtNode, NULL, NULL, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _PRT: %s\n",
AcpiFormatException (Status));
goto GetCrs;
}
ReturnBuffer.Pointer = AcpiGbl_DbBuffer;
ReturnBuffer.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiGetIrqRoutingTable (Node, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("GetIrqRoutingTable failed: %s\n",
AcpiFormatException (Status));
goto GetCrs;
}
AcpiRsDumpIrqList (ACPI_CAST_PTR (UINT8, AcpiGbl_DbBuffer));
}
/* _CRS */
GetCrs:
if (CrsNode)
{
AcpiOsPrintf ("Evaluating _CRS\n");
ReturnBuffer.Pointer = AcpiGbl_DbBuffer;
ReturnBuffer.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiEvaluateObject (CrsNode, NULL, NULL, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _CRS: %s\n",
AcpiFormatException (Status));
goto GetPrs;
}
/* This code exercises the AcpiWalkResources interface */
Status = AcpiWalkResources (Node, METHOD_NAME__CRS,
AcpiDbResourceCallback, NULL);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiWalkResources failed: %s\n",
AcpiFormatException (Status));
goto GetPrs;
}
/* Get the _CRS resource list (test ALLOCATE buffer) */
ReturnBuffer.Pointer = NULL;
ReturnBuffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
Status = AcpiGetCurrentResources (Node, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiGetCurrentResources failed: %s\n",
AcpiFormatException (Status));
goto GetPrs;
}
/* This code exercises the AcpiWalkResourceBuffer interface */
Status = AcpiWalkResourceBuffer (&ReturnBuffer,
AcpiDbResourceCallback, NULL);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiWalkResourceBuffer failed: %s\n",
AcpiFormatException (Status));
goto EndCrs;
}
/* Dump the _CRS resource list */
AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE,
ReturnBuffer.Pointer));
/*
* Perform comparison of original AML to newly created AML. This
* tests both the AML->Resource conversion and the Resource->AML
* conversion.
*/
(void) AcpiDmTestResourceConversion (Node, METHOD_NAME__CRS);
/* Execute _SRS with the resource list */
AcpiOsPrintf ("Evaluating _SRS\n");
Status = AcpiSetCurrentResources (Node, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiSetCurrentResources failed: %s\n",
AcpiFormatException (Status));
goto EndCrs;
}
EndCrs:
ACPI_FREE (ReturnBuffer.Pointer);
}
/* _PRS */
GetPrs:
if (PrsNode)
{
AcpiOsPrintf ("Evaluating _PRS\n");
ReturnBuffer.Pointer = AcpiGbl_DbBuffer;
ReturnBuffer.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiEvaluateObject (PrsNode, NULL, NULL, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _PRS: %s\n",
AcpiFormatException (Status));
goto GetAei;
}
ReturnBuffer.Pointer = AcpiGbl_DbBuffer;
ReturnBuffer.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiGetPossibleResources (Node, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiGetPossibleResources failed: %s\n",
AcpiFormatException (Status));
goto GetAei;
}
AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE, AcpiGbl_DbBuffer));
}
/* _AEI */
GetAei:
if (AeiNode)
{
AcpiOsPrintf ("Evaluating _AEI\n");
ReturnBuffer.Pointer = AcpiGbl_DbBuffer;
ReturnBuffer.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiEvaluateObject (AeiNode, NULL, NULL, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not evaluate _AEI: %s\n",
AcpiFormatException (Status));
goto Cleanup;
}
ReturnBuffer.Pointer = AcpiGbl_DbBuffer;
ReturnBuffer.Length = ACPI_DEBUG_BUFFER_SIZE;
Status = AcpiGetEventResources (Node, &ReturnBuffer);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("AcpiGetEventResources failed: %s\n",
AcpiFormatException (Status));
goto Cleanup;
}
AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE, AcpiGbl_DbBuffer));
}
Cleanup:
ACPI_FREE (ParentPath);
return (AE_OK);
}
