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rsxface.c (243347) rsxface.c (245582)
1/*******************************************************************************
2 *
3 * Module Name: rsxface - Public interfaces to the resource manager
4 *
5 ******************************************************************************/
6
7/*
1/*******************************************************************************
2 *
3 * Module Name: rsxface - Public interfaces to the resource manager
4 *
5 ******************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2012, Intel Corp.
8 * Copyright (C) 2000 - 2013, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.

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469 * Name - Method name for the parent resource
470 * (METHOD_NAME__CRS or METHOD_NAME__PRS)
471 * Uuid - Pointer to the UUID to be matched.
472 * includes both subtype and 16-byte UUID
473 * RetBuffer - Where the vendor resource is returned
474 *
475 * RETURN: Status
476 *
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.

--- 452 unchanged lines hidden (view full) ---

469 * Name - Method name for the parent resource
470 * (METHOD_NAME__CRS or METHOD_NAME__PRS)
471 * Uuid - Pointer to the UUID to be matched.
472 * includes both subtype and 16-byte UUID
473 * RetBuffer - Where the vendor resource is returned
474 *
475 * RETURN: Status
476 *
477 * DESCRIPTION: Walk a resource template for the specified evice to find a
477 * DESCRIPTION: Walk a resource template for the specified device to find a
478 * vendor-defined resource that matches the supplied UUID and
479 * UUID subtype. Returns a ACPI_RESOURCE of type Vendor.
480 *
481 ******************************************************************************/
482
483ACPI_STATUS
484AcpiGetVendorResource (
485 ACPI_HANDLE DeviceHandle,

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581
582 Info->Status = AE_OK;
583 return (AE_CTRL_TERMINATE);
584}
585
586
587/*******************************************************************************
588 *
478 * vendor-defined resource that matches the supplied UUID and
479 * UUID subtype. Returns a ACPI_RESOURCE of type Vendor.
480 *
481 ******************************************************************************/
482
483ACPI_STATUS
484AcpiGetVendorResource (
485 ACPI_HANDLE DeviceHandle,

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581
582 Info->Status = AE_OK;
583 return (AE_CTRL_TERMINATE);
584}
585
586
587/*******************************************************************************
588 *
589 * FUNCTION: AcpiWalkResources
589 * FUNCTION: AcpiWalkResourceBuffer
590 *
590 *
591 * PARAMETERS: DeviceHandle - Handle to the device object for the
592 * device we are querying
593 * Name - Method name of the resources we want.
594 * (METHOD_NAME__CRS, METHOD_NAME__PRS, or
595 * METHOD_NAME__AEI)
591 * PARAMETERS: Buffer - Formatted buffer returned by one of the
592 * various Get*Resource functions
596 * UserFunction - Called for each resource
597 * Context - Passed to UserFunction
598 *
599 * RETURN: Status
600 *
593 * UserFunction - Called for each resource
594 * Context - Passed to UserFunction
595 *
596 * RETURN: Status
597 *
601 * DESCRIPTION: Retrieves the current or possible resource list for the
602 * specified device. The UserFunction is called once for
603 * each resource in the list.
598 * DESCRIPTION: Walks the input resource template. The UserFunction is called
599 * once for each resource in the list.
604 *
605 ******************************************************************************/
606
607ACPI_STATUS
600 *
601 ******************************************************************************/
602
603ACPI_STATUS
608AcpiWalkResources (
609 ACPI_HANDLE DeviceHandle,
610 char *Name,
604AcpiWalkResourceBuffer (
605 ACPI_BUFFER *Buffer,
611 ACPI_WALK_RESOURCE_CALLBACK UserFunction,
612 void *Context)
613{
606 ACPI_WALK_RESOURCE_CALLBACK UserFunction,
607 void *Context)
608{
614 ACPI_STATUS Status;
615 ACPI_BUFFER Buffer;
609 ACPI_STATUS Status = AE_OK;
616 ACPI_RESOURCE *Resource;
617 ACPI_RESOURCE *ResourceEnd;
618
619
610 ACPI_RESOURCE *Resource;
611 ACPI_RESOURCE *ResourceEnd;
612
613
620 ACPI_FUNCTION_TRACE (AcpiWalkResources);
614 ACPI_FUNCTION_TRACE (AcpiWalkResourceBuffer);
621
622
623 /* Parameter validation */
624
615
616
617 /* Parameter validation */
618
625 if (!DeviceHandle || !UserFunction || !Name ||
626 (!ACPI_COMPARE_NAME (Name, METHOD_NAME__CRS) &&
627 !ACPI_COMPARE_NAME (Name, METHOD_NAME__PRS) &&
628 !ACPI_COMPARE_NAME (Name, METHOD_NAME__AEI)))
619 if (!Buffer || !Buffer->Pointer || !UserFunction)
629 {
630 return_ACPI_STATUS (AE_BAD_PARAMETER);
631 }
632
620 {
621 return_ACPI_STATUS (AE_BAD_PARAMETER);
622 }
623
633 /* Get the _CRS/_PRS/_AEI resource list */
624 /* Buffer contains the resource list and length */
634
625
635 Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
636 Status = AcpiRsGetMethodData (DeviceHandle, Name, &Buffer);
637 if (ACPI_FAILURE (Status))
638 {
639 return_ACPI_STATUS (Status);
640 }
626 Resource = ACPI_CAST_PTR (ACPI_RESOURCE, Buffer->Pointer);
627 ResourceEnd = ACPI_ADD_PTR (ACPI_RESOURCE, Buffer->Pointer, Buffer->Length);
641
628
642 /* Buffer now contains the resource list */
643
644 Resource = ACPI_CAST_PTR (ACPI_RESOURCE, Buffer.Pointer);
645 ResourceEnd = ACPI_ADD_PTR (ACPI_RESOURCE, Buffer.Pointer, Buffer.Length);
646
647 /* Walk the resource list until the EndTag is found (or buffer end) */
648
649 while (Resource < ResourceEnd)
650 {
651 /* Sanity check the resource */
652
653 if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)
654 {

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677 break;
678 }
679
680 /* Get the next resource descriptor */
681
682 Resource = ACPI_NEXT_RESOURCE (Resource);
683 }
684
629 /* Walk the resource list until the EndTag is found (or buffer end) */
630
631 while (Resource < ResourceEnd)
632 {
633 /* Sanity check the resource */
634
635 if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)
636 {

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659 break;
660 }
661
662 /* Get the next resource descriptor */
663
664 Resource = ACPI_NEXT_RESOURCE (Resource);
665 }
666
667 return_ACPI_STATUS (Status);
668}
669
670ACPI_EXPORT_SYMBOL (AcpiWalkResourceBuffer)
671
672
673/*******************************************************************************
674 *
675 * FUNCTION: AcpiWalkResources
676 *
677 * PARAMETERS: DeviceHandle - Handle to the device object for the
678 * device we are querying
679 * Name - Method name of the resources we want.
680 * (METHOD_NAME__CRS, METHOD_NAME__PRS, or
681 * METHOD_NAME__AEI)
682 * UserFunction - Called for each resource
683 * Context - Passed to UserFunction
684 *
685 * RETURN: Status
686 *
687 * DESCRIPTION: Retrieves the current or possible resource list for the
688 * specified device. The UserFunction is called once for
689 * each resource in the list.
690 *
691 ******************************************************************************/
692
693ACPI_STATUS
694AcpiWalkResources (
695 ACPI_HANDLE DeviceHandle,
696 char *Name,
697 ACPI_WALK_RESOURCE_CALLBACK UserFunction,
698 void *Context)
699{
700 ACPI_STATUS Status;
701 ACPI_BUFFER Buffer;
702
703
704 ACPI_FUNCTION_TRACE (AcpiWalkResources);
705
706
707 /* Parameter validation */
708
709 if (!DeviceHandle || !UserFunction || !Name ||
710 (!ACPI_COMPARE_NAME (Name, METHOD_NAME__CRS) &&
711 !ACPI_COMPARE_NAME (Name, METHOD_NAME__PRS) &&
712 !ACPI_COMPARE_NAME (Name, METHOD_NAME__AEI)))
713 {
714 return_ACPI_STATUS (AE_BAD_PARAMETER);
715 }
716
717 /* Get the _CRS/_PRS/_AEI resource list */
718
719 Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
720 Status = AcpiRsGetMethodData (DeviceHandle, Name, &Buffer);
721 if (ACPI_FAILURE (Status))
722 {
723 return_ACPI_STATUS (Status);
724 }
725
726 /* Walk the resource list and cleanup */
727
728 Status = AcpiWalkResourceBuffer (&Buffer, UserFunction, Context);
685 ACPI_FREE (Buffer.Pointer);
686 return_ACPI_STATUS (Status);
687}
688
689ACPI_EXPORT_SYMBOL (AcpiWalkResources)
729 ACPI_FREE (Buffer.Pointer);
730 return_ACPI_STATUS (Status);
731}
732
733ACPI_EXPORT_SYMBOL (AcpiWalkResources)