mirror of https://github.com/acidanthera/audk.git
ArmPlatformPkg: Make PCI emulation more compliant with the UEFI spec
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ronald Cron <Ronald.Cron@arm.com> Reviewed-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16583 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ronald Cron
oliviermartin
parent
f88a751a07
commit
8a8641b564
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@ -159,28 +159,70 @@ PciIoIoWrite (
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return EFI_UNSUPPORTED;
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}
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/**
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Enable a PCI driver to read PCI controller registers in PCI configuration space.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[in] Width Signifies the width of the memory operations.
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@param[in] Offset The offset within the PCI configuration space for
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the PCI controller.
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@param[in] Count The number of PCI configuration operations to
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perform. Bytes moved is Width size * Count,
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starting at Offset.
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@param[in out] Buffer The destination buffer to store the results.
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@retval EFI_SUCCESS The data was read from the PCI controller.
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@retval EFI_INVALID_PARAMETER "Width" is invalid.
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@retval EFI_INVALID_PARAMETER "Buffer" is NULL.
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**/
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EFI_STATUS
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PciIoPciRead (
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
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IN UINT32 Offset,
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IN UINTN Count,
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IN OUT VOID *Buffer
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
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IN UINT32 Offset,
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IN UINTN Count,
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IN OUT VOID *Buffer
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)
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{
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
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EFI_STATUS Status;
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Status = PciRootBridgeIoMemRW ((EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH)Width,
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Count,
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TRUE,
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(PTR)(UINTN)Buffer,
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TRUE,
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(PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset) //Fix me ConfigSpace
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);
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if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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Status = PciRootBridgeIoMemRW (
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(EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH)Width,
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Count,
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TRUE,
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(PTR)(UINTN)Buffer,
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TRUE,
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(PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset) //Fix me ConfigSpace
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);
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return Status;
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}
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/**
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Enable a PCI driver to write PCI controller registers in PCI configuration space.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[in] Width Signifies the width of the memory operations.
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@param[in] Offset The offset within the PCI configuration space for
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the PCI controller.
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@param[in] Count The number of PCI configuration operations to
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perform. Bytes moved is Width size * Count,
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starting at Offset.
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@param[in out] Buffer The source buffer to write data from.
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@retval EFI_SUCCESS The data was read from the PCI controller.
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@retval EFI_INVALID_PARAMETER "Width" is invalid.
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@retval EFI_INVALID_PARAMETER "Buffer" is NULL.
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**/
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EFI_STATUS
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PciIoPciWrite (
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IN EFI_PCI_IO_PROTOCOL *This,
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@ -192,6 +234,10 @@ PciIoPciWrite (
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{
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
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if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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return PciRootBridgeIoMemRW ((EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
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Count,
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TRUE,
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@ -249,18 +295,44 @@ PciIoUnmap (
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return DmaUnmap (Mapping);
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}
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/**
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Allocate pages that are suitable for an EfiPciIoOperationBusMasterCommonBuffer
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mapping.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[in] Type This parameter is not used and must be ignored.
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@param[in] MemoryType The type of memory to allocate, EfiBootServicesData or
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EfiRuntimeServicesData.
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@param[in] Pages The number of pages to allocate.
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@param[out] HostAddress A pointer to store the base system memory address of
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the allocated range.
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@param[in] Attributes The requested bit mask of attributes for the allocated
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range. Only the attributes,
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EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE and
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EFI_PCI_ATTRIBUTE_MEMORY_CACHED may be used with this
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function. If any other bits are set, then EFI_UNSUPPORTED
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is returned. This function ignores this bit mask.
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@retval EFI_SUCCESS The requested memory pages were allocated.
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@retval EFI_INVALID_PARAMETER HostAddress is NULL.
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@retval EFI_INVALID_PARAMETER MemoryType is invalid.
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@retval EFI_UNSUPPORTED Attributes is unsupported.
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@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
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**/
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EFI_STATUS
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PciIoAllocateBuffer (
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_ALLOCATE_TYPE Type,
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT VOID **HostAddress,
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IN UINT64 Attributes
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_ALLOCATE_TYPE Type,
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT VOID **HostAddress,
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IN UINT64 Attributes
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)
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{
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if (Attributes & EFI_PCI_ATTRIBUTE_INVALID_FOR_ALLOCATE_BUFFER) {
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// Check this
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if (Attributes &
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(~(EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE |
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EFI_PCI_ATTRIBUTE_MEMORY_CACHED ))) {
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return EFI_UNSUPPORTED;
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}
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@ -287,36 +359,70 @@ PciIoFlush (
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return EFI_SUCCESS;
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}
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/**
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Retrieves this PCI controller's current PCI bus number, device number, and function number.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[out] SegmentNumber The PCI controller's current PCI segment number.
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@param[out] BusNumber The PCI controller's current PCI bus number.
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@param[out] DeviceNumber The PCI controller's current PCI device number.
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@param[out] FunctionNumber The PCI controller’s current PCI function number.
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@retval EFI_SUCCESS The PCI controller location was returned.
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@retval EFI_INVALID_PARAMETER At least one out of the four output parameters is
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a NULL pointer.
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**/
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EFI_STATUS
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PciIoGetLocation (
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IN EFI_PCI_IO_PROTOCOL *This,
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OUT UINTN *SegmentNumber,
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OUT UINTN *BusNumber,
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OUT UINTN *DeviceNumber,
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OUT UINTN *FunctionNumber
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IN EFI_PCI_IO_PROTOCOL *This,
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OUT UINTN *SegmentNumber,
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OUT UINTN *BusNumber,
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OUT UINTN *DeviceNumber,
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OUT UINTN *FunctionNumber
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)
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{
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
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if (SegmentNumber != NULL) {
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*SegmentNumber = Private->Segment;
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if ((SegmentNumber == NULL) || (BusNumber == NULL) ||
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(DeviceNumber == NULL) || (FunctionNumber == NULL) ) {
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return EFI_INVALID_PARAMETER;
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}
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if (BusNumber != NULL) {
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*BusNumber = 0xff;
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}
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if (DeviceNumber != NULL) {
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*DeviceNumber = 0;
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}
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if (FunctionNumber != NULL) {
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*FunctionNumber = 0;
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}
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*SegmentNumber = Private->Segment;
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*BusNumber = 0xff;
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*DeviceNumber = 0;
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*FunctionNumber = 0;
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return EFI_SUCCESS;
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}
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/**
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Performs an operation on the attributes that this PCI controller supports.
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The operations include getting the set of supported attributes, retrieving
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the current attributes, setting the current attributes, enabling attributes,
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and disabling attributes.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[in] Operation The operation to perform on the attributes for this
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PCI controller.
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@param[in] Attributes The mask of attributes that are used for Set,
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Enable and Disable operations.
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@param[out] Result A pointer to the result mask of attributes that are
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returned for the Get and Supported operations. This
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is an optional parameter that may be NULL for the
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Set, Enable, and Disable operations.
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@retval EFI_SUCCESS The operation on the PCI controller's
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attributes was completed. If the operation
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was Get or Supported, then the attribute mask
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is returned in Result.
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@retval EFI_INVALID_PARAMETER Operation is greater than or equal to
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EfiPciIoAttributeOperationMaximum.
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@retval EFI_INVALID_PARAMETER Operation is Get and Result is NULL.
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@retval EFI_INVALID_PARAMETER Operation is Supported and Result is NULL.
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**/
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EFI_STATUS
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PciIoAttributes (
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IN EFI_PCI_IO_PROTOCOL *This,
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@ -331,18 +437,22 @@ PciIoAttributes (
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if (Result == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// We are not a real PCI device so just say things we kind of do
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*Result = EFI_PCI_IO_ATTRIBUTE_MEMORY | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER | EFI_PCI_DEVICE_ENABLE;
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//
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*Result = EFI_PCI_DEVICE_ENABLE;
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break;
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case EfiPciIoAttributeOperationSet:
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case EfiPciIoAttributeOperationEnable:
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case EfiPciIoAttributeOperationDisable:
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if (Attributes & (~EFI_PCI_DEVICE_ENABLE)) {
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return EFI_UNSUPPORTED;
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}
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// Since we are not a real PCI device no enable/set or disable operations exist.
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return EFI_SUCCESS;
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default:
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ASSERT (FALSE);
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return EFI_INVALID_PARAMETER;
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};
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return EFI_SUCCESS;
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@ -206,26 +206,70 @@ PciIoIoWrite (
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return EFI_UNSUPPORTED;
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}
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/**
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Enable a PCI driver to read PCI controller registers in PCI configuration space.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[in] Width Signifies the width of the memory operations.
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@param[in] Offset The offset within the PCI configuration space for
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the PCI controller.
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@param[in] Count The number of PCI configuration operations to
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perform. Bytes moved is Width size * Count,
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starting at Offset.
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@param[in out] Buffer The destination buffer to store the results.
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@retval EFI_SUCCESS The data was read from the PCI controller.
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@retval EFI_INVALID_PARAMETER "Width" is invalid.
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@retval EFI_INVALID_PARAMETER "Buffer" is NULL.
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**/
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EFI_STATUS
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PciIoPciRead (
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
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IN UINT32 Offset,
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IN UINTN Count,
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IN OUT VOID *Buffer
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
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IN UINT32 Offset,
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IN UINTN Count,
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IN OUT VOID *Buffer
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)
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{
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
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EFI_STATUS Status;
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return PciRootBridgeIoMemRW ((EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH)Width,
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Count,
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TRUE,
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(PTR)(UINTN)Buffer,
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TRUE,
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(PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset)
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);
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if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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Status = PciRootBridgeIoMemRW (
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(EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH)Width,
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Count,
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TRUE,
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(PTR)(UINTN)Buffer,
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TRUE,
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(PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset) //Fix me ConfigSpace
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);
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return Status;
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}
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/**
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Enable a PCI driver to write PCI controller registers in PCI configuration space.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[in] Width Signifies the width of the memory operations.
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@param[in] Offset The offset within the PCI configuration space for
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the PCI controller.
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@param[in] Count The number of PCI configuration operations to
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perform. Bytes moved is Width size * Count,
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starting at Offset.
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@param[in out] Buffer The source buffer to write data from.
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@retval EFI_SUCCESS The data was read from the PCI controller.
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@retval EFI_INVALID_PARAMETER "Width" is invalid.
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@retval EFI_INVALID_PARAMETER "Buffer" is NULL.
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**/
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EFI_STATUS
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PciIoPciWrite (
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IN EFI_PCI_IO_PROTOCOL *This,
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@ -235,7 +279,11 @@ PciIoPciWrite (
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IN OUT VOID *Buffer
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)
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{
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
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if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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return PciRootBridgeIoMemRW ((EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
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Count,
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@ -294,18 +342,44 @@ PciIoUnmap (
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return DmaUnmap (Mapping);
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}
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/**
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Allocate pages that are suitable for an EfiPciIoOperationBusMasterCommonBuffer
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mapping.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[in] Type This parameter is not used and must be ignored.
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@param[in] MemoryType The type of memory to allocate, EfiBootServicesData or
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EfiRuntimeServicesData.
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@param[in] Pages The number of pages to allocate.
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@param[out] HostAddress A pointer to store the base system memory address of
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the allocated range.
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@param[in] Attributes The requested bit mask of attributes for the allocated
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range. Only the attributes,
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EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE and
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EFI_PCI_ATTRIBUTE_MEMORY_CACHED may be used with this
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function. If any other bits are set, then EFI_UNSUPPORTED
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is returned. This function ignores this bit mask.
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@retval EFI_SUCCESS The requested memory pages were allocated.
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@retval EFI_INVALID_PARAMETER HostAddress is NULL.
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@retval EFI_INVALID_PARAMETER MemoryType is invalid.
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@retval EFI_UNSUPPORTED Attributes is unsupported.
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@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
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**/
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EFI_STATUS
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PciIoAllocateBuffer (
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_ALLOCATE_TYPE Type,
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT VOID **HostAddress,
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IN UINT64 Attributes
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IN EFI_PCI_IO_PROTOCOL *This,
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IN EFI_ALLOCATE_TYPE Type,
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT VOID **HostAddress,
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IN UINT64 Attributes
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)
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{
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if (Attributes & EFI_PCI_ATTRIBUTE_INVALID_FOR_ALLOCATE_BUFFER) {
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// Check this
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if (Attributes &
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(~(EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE |
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EFI_PCI_ATTRIBUTE_MEMORY_CACHED ))) {
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return EFI_UNSUPPORTED;
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}
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@ -332,36 +406,70 @@ PciIoFlush (
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return EFI_SUCCESS;
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}
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/**
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Retrieves this PCI controller's current PCI bus number, device number, and function number.
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@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
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@param[out] SegmentNumber The PCI controller's current PCI segment number.
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@param[out] BusNumber The PCI controller's current PCI bus number.
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@param[out] DeviceNumber The PCI controller's current PCI device number.
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@param[out] FunctionNumber The PCI controller’s current PCI function number.
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@retval EFI_SUCCESS The PCI controller location was returned.
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@retval EFI_INVALID_PARAMETER At least one out of the four output parameters is
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a NULL pointer.
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**/
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EFI_STATUS
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PciIoGetLocation (
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IN EFI_PCI_IO_PROTOCOL *This,
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OUT UINTN *SegmentNumber,
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OUT UINTN *BusNumber,
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OUT UINTN *DeviceNumber,
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OUT UINTN *FunctionNumber
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IN EFI_PCI_IO_PROTOCOL *This,
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OUT UINTN *SegmentNumber,
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OUT UINTN *BusNumber,
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OUT UINTN *DeviceNumber,
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OUT UINTN *FunctionNumber
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)
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{
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);
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EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
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if (SegmentNumber != NULL) {
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*SegmentNumber = Private->Segment;
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if ((SegmentNumber == NULL) || (BusNumber == NULL) ||
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(DeviceNumber == NULL) || (FunctionNumber == NULL) ) {
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return EFI_INVALID_PARAMETER;
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||||
}
|
||||
|
||||
if (BusNumber != NULL) {
|
||||
*BusNumber = 0xff;
|
||||
}
|
||||
|
||||
if (DeviceNumber != NULL) {
|
||||
*DeviceNumber = 0;
|
||||
}
|
||||
|
||||
if (FunctionNumber != NULL) {
|
||||
*FunctionNumber = 0;
|
||||
}
|
||||
*SegmentNumber = Private->Segment;
|
||||
*BusNumber = 0xff;
|
||||
*DeviceNumber = 0;
|
||||
*FunctionNumber = 0;
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
Performs an operation on the attributes that this PCI controller supports.
|
||||
|
||||
The operations include getting the set of supported attributes, retrieving
|
||||
the current attributes, setting the current attributes, enabling attributes,
|
||||
and disabling attributes.
|
||||
|
||||
@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
|
||||
@param[in] Operation The operation to perform on the attributes for this
|
||||
PCI controller.
|
||||
@param[in] Attributes The mask of attributes that are used for Set,
|
||||
Enable and Disable operations.
|
||||
@param[out] Result A pointer to the result mask of attributes that are
|
||||
returned for the Get and Supported operations. This
|
||||
is an optional parameter that may be NULL for the
|
||||
Set, Enable, and Disable operations.
|
||||
|
||||
@retval EFI_SUCCESS The operation on the PCI controller's
|
||||
attributes was completed. If the operation
|
||||
was Get or Supported, then the attribute mask
|
||||
is returned in Result.
|
||||
@retval EFI_INVALID_PARAMETER Operation is greater than or equal to
|
||||
EfiPciIoAttributeOperationMaximum.
|
||||
@retval EFI_INVALID_PARAMETER Operation is Get and Result is NULL.
|
||||
@retval EFI_INVALID_PARAMETER Operation is Supported and Result is NULL.
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
PciIoAttributes (
|
||||
IN EFI_PCI_IO_PROTOCOL *This,
|
||||
|
|
@ -376,18 +484,22 @@ PciIoAttributes (
|
|||
if (Result == NULL) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
//
|
||||
// We are not a real PCI device so just say things we kind of do
|
||||
*Result = EFI_PCI_IO_ATTRIBUTE_MEMORY | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER | EFI_PCI_DEVICE_ENABLE;
|
||||
//
|
||||
*Result = EFI_PCI_DEVICE_ENABLE;
|
||||
break;
|
||||
|
||||
case EfiPciIoAttributeOperationSet:
|
||||
case EfiPciIoAttributeOperationEnable:
|
||||
case EfiPciIoAttributeOperationDisable:
|
||||
if (Attributes & (~EFI_PCI_DEVICE_ENABLE)) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
// Since we are not a real PCI device no enable/set or disable operations exist.
|
||||
return EFI_SUCCESS;
|
||||
|
||||
default:
|
||||
ASSERT (FALSE);
|
||||
return EFI_INVALID_PARAMETER;
|
||||
};
|
||||
return EFI_SUCCESS;
|
||||
|
|
|
|||
Loading…
Reference in New Issue