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504 lines
24 KiB
C
504 lines
24 KiB
C
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/** @file
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UfsHcDxe driver is used to provide platform-dependent info, mainly UFS host controller
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MMIO base, to upper layer UFS drivers.
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Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _EFI_UFS_HOST_CONTROLLER_H_
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#define _EFI_UFS_HOST_CONTROLLER_H_
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#include <Uefi.h>
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#include <IndustryStandard/Pci.h>
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#include <IndustryStandard/Acpi.h>
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#include <Protocol/ComponentName.h>
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#include <Protocol/ComponentName2.h>
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#include <Protocol/DriverBinding.h>
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#include <Protocol/LoadedImage.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/PciIo.h>
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#include <Protocol/UfsHostController.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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extern EFI_DRIVER_BINDING_PROTOCOL gUfsHcDriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gUfsHcComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gUfsHcComponentName2;
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//
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// Unique signature for private data structure.
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//
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#define UFS_HC_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('U','F','S','H')
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typedef struct _UFS_HOST_CONTROLLER_PRIVATE_DATA UFS_HOST_CONTROLLER_PRIVATE_DATA;
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//
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// Ufs host controller private data structure.
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//
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struct _UFS_HOST_CONTROLLER_PRIVATE_DATA {
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UINT32 Signature;
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EDKII_UFS_HOST_CONTROLLER_PROTOCOL UfsHc;
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EFI_PCI_IO_PROTOCOL *PciIo;
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UINT8 BarIndex;
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UINT64 PciAttributes;
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};
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#define UFS_HOST_CONTROLLER_PRIVATE_DATA_FROM_UFSHC(a) \
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CR (a, \
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UFS_HOST_CONTROLLER_PRIVATE_DATA, \
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UfsHc, \
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UFS_HC_PRIVATE_DATA_SIGNATURE \
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)
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/**
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Retrieves a Unicode string that is the user readable name of the driver.
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This function retrieves the user readable name of a driver in the form of a
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Unicode string. If the driver specified by This has a user readable name in
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the language specified by Language, then a pointer to the driver name is
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returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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by This does not support the language specified by Language,
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then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified
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in RFC 4646 or ISO 639-2 language code format.
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@param DriverName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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driver specified by This in the language
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specified by Language.
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@retval EFI_SUCCESS The Unicode string for the Driver specified by
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This and the language specified by Language was
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returned in DriverName.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER DriverName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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);
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/**
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Retrieves a Unicode string that is the user readable name of the controller
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that is being managed by a driver.
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This function retrieves the user readable name of the controller specified by
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ControllerHandle and ChildHandle in the form of a Unicode string. If the
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driver specified by This has a user readable name in the language specified by
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Language, then a pointer to the controller name is returned in ControllerName,
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and EFI_SUCCESS is returned. If the driver specified by This is not currently
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managing the controller specified by ControllerHandle and ChildHandle,
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then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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support the language specified by Language, then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param ControllerHandle[in] The handle of a controller that the driver
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specified by This is managing. This handle
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specifies the controller whose name is to be
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returned.
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@param ChildHandle[in] The handle of the child controller to retrieve
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the name of. This is an optional parameter that
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may be NULL. It will be NULL for device
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drivers. It will also be NULL for a bus drivers
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that wish to retrieve the name of the bus
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controller. It will not be NULL for a bus
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driver that wishes to retrieve the name of a
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child controller.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified in
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RFC 4646 or ISO 639-2 language code format.
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@param ControllerName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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controller specified by ControllerHandle and
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ChildHandle in the language specified by
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Language from the point of view of the driver
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specified by This.
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@retval EFI_SUCCESS The Unicode string for the user readable name in
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the language specified by Language for the
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driver specified by This was returned in
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DriverName.
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@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
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@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
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EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER ControllerName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This is not currently
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managing the controller specified by
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ControllerHandle and ChildHandle.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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);
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/**
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Tests to see if this driver supports a given controller. If a child device is provided,
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it further tests to see if this driver supports creating a handle for the specified child device.
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This function checks to see if the driver specified by This supports the device specified by
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ControllerHandle. Drivers will typically use the device path attached to
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ControllerHandle and/or the services from the bus I/O abstraction attached to
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ControllerHandle to determine if the driver supports ControllerHandle. This function
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may be called many times during platform initialization. In order to reduce boot times, the tests
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performed by this function must be very small, and take as little time as possible to execute. This
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function must not change the state of any hardware devices, and this function must be aware that the
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device specified by ControllerHandle may already be managed by the same driver or a
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different driver. This function must match its calls to AllocatePages() with FreePages(),
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AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
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Since ControllerHandle may have been previously started by the same driver, if a protocol is
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already in the opened state, then it must not be closed with CloseProtocol(). This is required
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to guarantee the state of ControllerHandle is not modified by this function.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to test. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For bus drivers, if this parameter is not NULL, then
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the bus driver must determine if the bus controller specified
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by ControllerHandle and the child controller specified
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by RemainingDevicePath are both supported by this
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bus driver.
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@retval EFI_SUCCESS The device specified by ControllerHandle and
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RemainingDevicePath is supported by the driver specified by This.
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@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by the driver
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specified by This.
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@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by a different
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driver or an application that requires exclusive access.
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Currently not implemented.
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@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
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RemainingDevicePath is not supported by the driver specified by This.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Starts a device controller or a bus controller.
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The Start() function is designed to be invoked from the EFI boot service ConnectController().
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As a result, much of the error checking on the parameters to Start() has been moved into this
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common boot service. It is legal to call Start() from other locations,
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but the following calling restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE.
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2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
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EFI_DEVICE_PATH_PROTOCOL.
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3. Prior to calling Start(), the Supported() function for the driver specified by This must
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have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to start. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For a bus driver, if this parameter is NULL, then handles
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for all the children of Controller are created by this driver.
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If this parameter is not NULL and the first Device Path Node is
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not the End of Device Path Node, then only the handle for the
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child device specified by the first Device Path Node of
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RemainingDevicePath is created by this driver.
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If the first Device Path Node of RemainingDevicePath is
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the End of Device Path Node, no child handle is created by this
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driver.
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@retval EFI_SUCCESS The device was started.
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@retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval Others The driver failded to start the device.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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);
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/**
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Stops a device controller or a bus controller.
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The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
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As a result, much of the error checking on the parameters to Stop() has been moved
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into this common boot service. It is legal to call Stop() from other locations,
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but the following calling restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
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same driver's Start() function.
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2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
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EFI_HANDLE. In addition, all of these handles must have been created in this driver's
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Start() function, and the Start() function must have called OpenProtocol() on
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ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle A handle to the device being stopped. The handle must
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support a bus specific I/O protocol for the driver
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to use to stop the device.
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@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
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@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
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if NumberOfChildren is 0.
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@retval EFI_SUCCESS The device was stopped.
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@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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);
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/**
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Get the MMIO base of the UFS host controller.
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@param[in] This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
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@param[out] MmioBar The MMIO base address of UFS host controller.
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@retval EFI_SUCCESS The operation succeeds.
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@retval others The operation fails.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcGetMmioBar (
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IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
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OUT UINTN *MmioBar
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);
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/**
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Provides the UFS controller-specific addresses needed to access system memory.
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@param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
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@param Operation Indicates if the bus master is going to read or write to system memory.
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@param HostAddress The system memory address to map to the UFS controller.
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@param NumberOfBytes On input the number of bytes to map. On output the number of bytes
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that were mapped.
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@param DeviceAddress The resulting map address for the bus master UFS controller to use to
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access the hosts HostAddress.
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@param Mapping A resulting value to pass to Unmap().
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@retval EFI_SUCCESS The range was mapped for the returned NumberOfBytes.
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@retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common buffer.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval EFI_DEVICE_ERROR The system hardware could not map the requested address.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcMap (
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IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
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IN EDKII_UFS_HOST_CONTROLLER_OPERATION Operation,
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IN VOID *HostAddress,
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IN OUT UINTN *NumberOfBytes,
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OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
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OUT VOID **Mapping
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);
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/**
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Completes the Map() operation and releases any corresponding resources.
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@param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
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@param Mapping The mapping value returned from Map().
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@retval EFI_SUCCESS The range was unmapped.
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@retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
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**/
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EFI_STATUS
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EFIAPI
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UfsHcUnmap (
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IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
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IN VOID *Mapping
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);
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/**
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Allocates pages that are suitable for an EfiUfsHcOperationBusMasterCommonBuffer
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mapping.
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@param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
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@param Type This parameter is not used and must be ignored.
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@param MemoryType The type of memory to allocate, EfiBootServicesData or
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EfiRuntimeServicesData.
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@param Pages The number of pages to allocate.
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@param HostAddress A pointer to store the base system memory address of the
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allocated range.
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@param Attributes The requested bit mask of attributes for the allocated range.
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@retval EFI_SUCCESS The requested memory pages were allocated.
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@retval EFI_UNSUPPORTED Attributes is unsupported. The only legal attribute bits are
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MEMORY_WRITE_COMBINE and MEMORY_CACHED.
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@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
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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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EFIAPI
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UfsHcAllocateBuffer (
|
||
|
IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
|
||
|
IN EFI_ALLOCATE_TYPE Type,
|
||
|
IN EFI_MEMORY_TYPE MemoryType,
|
||
|
IN UINTN Pages,
|
||
|
OUT VOID **HostAddress,
|
||
|
IN UINT64 Attributes
|
||
|
);
|
||
|
|
||
|
/**
|
||
|
Frees memory that was allocated with AllocateBuffer().
|
||
|
|
||
|
@param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
|
||
|
@param Pages The number of pages to free.
|
||
|
@param HostAddress The base system memory address of the allocated range.
|
||
|
|
||
|
@retval EFI_SUCCESS The requested memory pages were freed.
|
||
|
@retval EFI_INVALID_PARAMETER The memory range specified by HostAddress and Pages
|
||
|
was not allocated with AllocateBuffer().
|
||
|
|
||
|
**/
|
||
|
EFI_STATUS
|
||
|
EFIAPI
|
||
|
UfsHcFreeBuffer (
|
||
|
IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
|
||
|
IN UINTN Pages,
|
||
|
IN VOID *HostAddress
|
||
|
);
|
||
|
|
||
|
/**
|
||
|
Flushes all posted write transactions from the UFS bus to attached UFS device.
|
||
|
|
||
|
@param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
|
||
|
|
||
|
@retval EFI_SUCCESS The posted write transactions were flushed from the UFS bus
|
||
|
to attached UFS device.
|
||
|
@retval EFI_DEVICE_ERROR The posted write transactions were not flushed from the UFS
|
||
|
bus to attached UFS device due to a hardware error.
|
||
|
|
||
|
**/
|
||
|
EFI_STATUS
|
||
|
EFIAPI
|
||
|
UfsHcFlush (
|
||
|
IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This
|
||
|
);
|
||
|
|
||
|
/**
|
||
|
Enable a UFS bus driver to access UFS MMIO registers in the UFS Host Controller memory space.
|
||
|
|
||
|
@param This A pointer to the EDKII_UFS_HOST_CONTROLLER_PROTOCOL instance.
|
||
|
@param Width Signifies the width of the memory operations.
|
||
|
@param Offset The offset within the UFS Host Controller MMIO space to start the
|
||
|
memory operation.
|
||
|
@param Count The number of memory operations to perform.
|
||
|
@param Buffer For read operations, the destination buffer to store the results.
|
||
|
For write operations, the source buffer to write data from.
|
||
|
|
||
|
@retval EFI_SUCCESS The data was read from or written to the UFS host controller.
|
||
|
@retval EFI_UNSUPPORTED The address range specified by Offset, Width, and Count is not
|
||
|
valid for the UFS Host Controller memory space.
|
||
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
|
||
|
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
|
||
|
|
||
|
**/
|
||
|
EFI_STATUS
|
||
|
EFIAPI
|
||
|
UfsHcMmioRead (
|
||
|
IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
|
||
|
IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL_WIDTH Width,
|
||
|
IN UINT64 Offset,
|
||
|
IN UINTN Count,
|
||
|
IN OUT VOID *Buffer
|
||
|
);
|
||
|
|
||
|
/**
|
||
|
Enable a UFS bus driver to access UFS MMIO registers in the UFS Host Controller memory space.
|
||
|
|
||
|
@param This A pointer to the EDKII_UFS_HOST_CONTROLLER_PROTOCOL instance.
|
||
|
@param Width Signifies the width of the memory operations.
|
||
|
@param Offset The offset within the UFS Host Controller MMIO space to start the
|
||
|
memory operation.
|
||
|
@param Count The number of memory operations to perform.
|
||
|
@param Buffer For read operations, the destination buffer to store the results.
|
||
|
For write operations, the source buffer to write data from.
|
||
|
|
||
|
@retval EFI_SUCCESS The data was read from or written to the UFS host controller.
|
||
|
@retval EFI_UNSUPPORTED The address range specified by Offset, Width, and Count is not
|
||
|
valid for the UFS Host Controller memory space.
|
||
|
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
|
||
|
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
|
||
|
|
||
|
**/
|
||
|
EFI_STATUS
|
||
|
EFIAPI
|
||
|
UfsHcMmioWrite (
|
||
|
IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
|
||
|
IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL_WIDTH Width,
|
||
|
IN UINT64 Offset,
|
||
|
IN UINTN Count,
|
||
|
IN OUT VOID *Buffer
|
||
|
);
|
||
|
|
||
|
#endif
|