mirror of https://github.com/acidanthera/audk.git
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/** @file
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Arm Flattened Device Tree parser library for KvmTool.
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Copyright (c) 2021, ARM Limited. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "FdtHwInfoParser.h"
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#include "Arm/BootArch/ArmBootArchParser.h"
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#include "Arm/GenericTimer/ArmGenericTimerParser.h"
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#include "Arm/Gic/ArmGicDispatcher.h"
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#include "Pci/PciConfigSpaceParser.h"
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#include "Serial/SerialPortParser.h"
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/** Ordered table of parsers/dispatchers.
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A parser parses a Device Tree to populate a specific CmObj type. None,
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one or many CmObj can be created by the parser.
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The created CmObj are then handed to the parser's caller through the
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HW_INFO_ADD_OBJECT interface.
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This can also be a dispatcher. I.e. a function that not parsing a
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Device Tree but calling other parsers.
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*/
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STATIC CONST FDT_HW_INFO_PARSER_FUNC HwInfoParserTable[] = {
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ArmBootArchInfoParser,
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ArmGenericTimerInfoParser,
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ArmGicDispatcher,
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PciConfigInfoParser,
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SerialPortDispatcher
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};
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/** Main dispatcher: sequentially call the parsers/dispatchers
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of the HwInfoParserTable.
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A parser parses a Device Tree to populate a specific CmObj type. None,
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one or many CmObj can be created by the parser.
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The created CmObj are then handed to the parser's caller through the
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HW_INFO_ADD_OBJECT interface.
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This can also be a dispatcher. I.e. a function that not parsing a
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Device Tree but calling other parsers.
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@param [in] FdtParserHandle A handle to the parser instance.
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@param [in] FdtBranch When searching for DT node name, restrict
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the search to this Device Tree branch.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_ABORTED An error occurred.
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@retval EFI_INVALID_PARAMETER Invalid parameter.
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@retval EFI_NOT_FOUND Not found.
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@retval EFI_UNSUPPORTED Unsupported.
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**/
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EFI_STATUS
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EFIAPI
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ArchFdtHwInfoMainDispatcher (
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IN CONST FDT_HW_INFO_PARSER_HANDLE FdtParserHandle,
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IN INT32 FdtBranch
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)
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{
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EFI_STATUS Status;
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UINT32 Index;
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if (fdt_check_header (FdtParserHandle->Fdt) < 0) {
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ASSERT (0);
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return EFI_INVALID_PARAMETER;
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}
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for (Index = 0; Index < ARRAY_SIZE (HwInfoParserTable); Index++) {
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Status = HwInfoParserTable[Index](
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FdtParserHandle,
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FdtBranch
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);
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if (EFI_ERROR (Status) &&
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(Status != EFI_NOT_FOUND))
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{
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// If EFI_NOT_FOUND, the parser didn't find information in the DT.
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// Don't trigger an error.
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ASSERT (0);
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return Status;
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}
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} // for
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return EFI_SUCCESS;
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}
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