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UfsHostController.h File Reference

Go to the source code of this file.

Data Structures

struct  _EDKII_UFS_HOST_CONTROLLER_PROTOCOL
 

Macros

#define EDKII_UFS_HOST_CONTROLLER_PROTOCOL_GUID
 

Typedefs

typedef struct _EDKII_UFS_HOST_CONTROLLER_PROTOCOL EDKII_UFS_HOST_CONTROLLER_PROTOCOL
 
typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_GET_MMIO_BAR) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, OUT UINTN *MmioBar)
 
typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_MAP) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, IN EDKII_UFS_HOST_CONTROLLER_OPERATION Operation, IN VOID *HostAddress, IN OUT UINTN *NumberOfBytes, OUT EFI_PHYSICAL_ADDRESS *DeviceAddress, OUT VOID **Mapping)
 
typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_UNMAP) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, IN VOID *Mapping)
 
typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_ALLOCATE_BUFFER) (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)
 
typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_FREE_BUFFER) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, IN UINTN Pages, IN VOID *HostAddress)
 
typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_FLUSH) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This)
 
typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_MMIO_READ_WRITE) (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)
 

Enumerations

enum  EDKII_UFS_HOST_CONTROLLER_OPERATION { EdkiiUfsHcOperationBusMasterRead , EdkiiUfsHcOperationBusMasterWrite , EdkiiUfsHcOperationBusMasterCommonBuffer , EdkiiUfsHcOperationMaximum }
 
enum  EDKII_UFS_HOST_CONTROLLER_PROTOCOL_WIDTH {
  EfiUfsHcWidthUint8 = 0 , EfiUfsHcWidthUint16 , EfiUfsHcWidthUint32 , EfiUfsHcWidthUint64 ,
  EfiUfsHcWidthMaximum
}
 

Variables

EFI_GUID gEdkiiUfsHostControllerProtocolGuid
 

Detailed Description

EDKII Universal Flash Storage Host Controller Protocol.

Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file UfsHostController.h.

Macro Definition Documentation

◆ EDKII_UFS_HOST_CONTROLLER_PROTOCOL_GUID

#define EDKII_UFS_HOST_CONTROLLER_PROTOCOL_GUID
Value:
{ \
0xebc01af5, 0x7a9, 0x489e, { 0xb7, 0xce, 0xdc, 0x8, 0x9e, 0x45, 0x9b, 0x2f } \
}

Definition at line 16 of file UfsHostController.h.

Typedef Documentation

◆ EDKII_UFS_HC_ALLOCATE_BUFFER

typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_ALLOCATE_BUFFER) (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)

Allocates pages that are suitable for an EfiUfsHcOperationBusMasterCommonBuffer mapping.

Parameters
ThisA pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
TypeThis parameter is not used and must be ignored.
MemoryTypeThe type of memory to allocate, EfiBootServicesData or EfiRuntimeServicesData.
PagesThe number of pages to allocate.
HostAddressA pointer to store the base system memory address of the allocated range.
AttributesThe requested bit mask of attributes for the allocated range.
Return values
EFI_SUCCESSThe requested memory pages were allocated.
EFI_UNSUPPORTEDAttributes is unsupported. The only legal attribute bits are MEMORY_WRITE_COMBINE and MEMORY_CACHED.
EFI_INVALID_PARAMETEROne or more parameters are invalid.
EFI_OUT_OF_RESOURCESThe memory pages could not be allocated.

Definition at line 133 of file UfsHostController.h.

◆ EDKII_UFS_HC_FLUSH

typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_FLUSH) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This)

Flushes all posted write transactions from the UFS bus to attached UFS device.

Parameters
ThisA pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
Return values
EFI_SUCCESSThe posted write transactions were flushed from the UFS bus to attached UFS device.
EFI_DEVICE_ERRORThe posted write transactions were not flushed from the UFS bus to attached UFS device due to a hardware error.

Definition at line 175 of file UfsHostController.h.

◆ EDKII_UFS_HC_FREE_BUFFER

typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_FREE_BUFFER) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, IN UINTN Pages, IN VOID *HostAddress)

Frees memory that was allocated with AllocateBuffer().

Parameters
ThisA pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
PagesThe number of pages to free.
HostAddressThe base system memory address of the allocated range.
Return values
EFI_SUCCESSThe requested memory pages were freed.
EFI_INVALID_PARAMETERThe memory range specified by HostAddress and Pages was not allocated with AllocateBuffer().

Definition at line 156 of file UfsHostController.h.

◆ EDKII_UFS_HC_GET_MMIO_BAR

typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_GET_MMIO_BAR) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, OUT UINTN *MmioBar)

Get the MMIO base address of UFS host controller.

Parameters
ThisThe protocol instance pointer.
MmioBarPointer to the UFS host controller MMIO base address.
Return values
EFI_SUCCESSThe operation succeeds.
EFI_INVALID_PARAMETERThe parameters are invalid.

Definition at line 37 of file UfsHostController.h.

◆ EDKII_UFS_HC_MAP

typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_MAP) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, IN EDKII_UFS_HOST_CONTROLLER_OPERATION Operation, IN VOID *HostAddress, IN OUT UINTN *NumberOfBytes, OUT EFI_PHYSICAL_ADDRESS *DeviceAddress, OUT VOID **Mapping)

Provides the UFS controller-specific addresses needed to access system memory.

Parameters
ThisA pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
OperationIndicates if the bus master is going to read or write to system memory.
HostAddressThe system memory address to map to the UFS controller.
NumberOfBytesOn input the number of bytes to map. On output the number of bytes that were mapped.
DeviceAddressThe resulting map address for the bus master UFS controller to use to access the hosts HostAddress.
MappingA resulting value to pass to Unmap().
Return values
EFI_SUCCESSThe range was mapped for the returned NumberOfBytes.
EFI_UNSUPPORTEDThe HostAddress cannot be mapped as a common buffer.
EFI_INVALID_PARAMETEROne or more parameters are invalid.
EFI_OUT_OF_RESOURCESThe request could not be completed due to a lack of resources.
EFI_DEVICE_ERRORThe system hardware could not map the requested address.

Definition at line 85 of file UfsHostController.h.

◆ EDKII_UFS_HC_MMIO_READ_WRITE

typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_MMIO_READ_WRITE) (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.

Parameters
ThisA pointer to the EDKII_UFS_HOST_CONTROLLER_PROTOCOL instance.
WidthSignifies the width of the memory operations.
OffsetThe offset within the UFS Host Controller MMIO space to start the memory operation.
CountThe number of memory operations to perform.
BufferFor read operations, the destination buffer to store the results. For write operations, the source buffer to write data from.
Return values
EFI_SUCCESSThe data was read from or written to the UFS host controller.
EFI_UNSUPPORTEDThe address range specified by Offset, Width, and Count is not valid for the UFS Host Controller memory space.
EFI_OUT_OF_RESOURCESThe request could not be completed due to a lack of resources.
EFI_INVALID_PARAMETEROne or more parameters are invalid.

Definition at line 207 of file UfsHostController.h.

◆ EDKII_UFS_HC_UNMAP

typedef EFI_STATUS(EFIAPI * EDKII_UFS_HC_UNMAP) (IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This, IN VOID *Mapping)

Completes the Map() operation and releases any corresponding resources.

Parameters
ThisA pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
MappingThe mapping value returned from Map().
Return values
EFI_SUCCESSThe range was unmapped.
EFI_DEVICE_ERRORThe data was not committed to the target system memory.

Definition at line 106 of file UfsHostController.h.

◆ EDKII_UFS_HOST_CONTROLLER_PROTOCOL

Enumeration Type Documentation

◆ EDKII_UFS_HOST_CONTROLLER_OPERATION


EFI_UFS_HOST_CONTROLLER_OPERATION


Enumerator
EdkiiUfsHcOperationBusMasterRead 

A read operation from system memory by a bus master.

EdkiiUfsHcOperationBusMasterWrite 

A write operation from system memory by a bus master.

EdkiiUfsHcOperationBusMasterCommonBuffer 

Provides both read and write access to system memory by both the processor and a bus master. The buffer is coherent from both the processor's and the bus master's point of view.

Definition at line 48 of file UfsHostController.h.

◆ EDKII_UFS_HOST_CONTROLLER_PROTOCOL_WIDTH

enum EDKII_UFS_HOST_CONTROLLER_PROTOCOL_WIDTH

Definition at line 180 of file UfsHostController.h.

Variable Documentation

◆ gEdkiiUfsHostControllerProtocolGuid

EFI_GUID gEdkiiUfsHostControllerProtocolGuid
extern

UFS Host Controller Protocol GUID variable.