diff options
Diffstat (limited to 'MdeModulePkg/Include/Protocol/UfsHostController.h')
| -rw-r--r-- | MdeModulePkg/Include/Protocol/UfsHostController.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Protocol/UfsHostController.h b/MdeModulePkg/Include/Protocol/UfsHostController.h new file mode 100644 index 0000000000..83db1a7bbd --- /dev/null +++ b/MdeModulePkg/Include/Protocol/UfsHostController.h @@ -0,0 +1,205 @@ +/** @file
+
+ EDKII Universal Flash Storage Host Controller Protocol.
+
+Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+#ifndef __EDKII_UFS_HC_PROTOCOL_H__
+#define __EDKII_UFS_HC_PROTOCOL_H__
+
+//
+// UFS Host Controller Protocol GUID value
+//
+#define EDKII_UFS_HOST_CONTROLLER_PROTOCOL_GUID \
+ { \
+ 0xebc01af5, 0x7a9, 0x489e, { 0xb7, 0xce, 0xdc, 0x8, 0x9e, 0x45, 0x9b, 0x2f } \
+ }
+
+//
+// Forward reference for pure ANSI compatability
+//
+typedef struct _EDKII_UFS_HOST_CONTROLLER_PROTOCOL EDKII_UFS_HOST_CONTROLLER_PROTOCOL;
+
+
+/**
+ Get the MMIO base address of UFS host controller.
+
+ @param This The protocol instance pointer.
+ @param MmioBar Pointer to the UFS host controller MMIO base address.
+
+ @retval EFI_SUCCESS The operation succeeds.
+ @retval EFI_INVALID_PARAMETER The parameters are invalid.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_UFS_HC_GET_MMIO_BAR)(
+ IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
+ OUT UINTN *MmioBar
+ );
+
+///
+/// *******************************************************
+/// EFI_UFS_HOST_CONTROLLER_OPERATION
+/// *******************************************************
+///
+typedef enum {
+ ///
+ /// A read operation from system memory by a bus master.
+ ///
+ EdkiiUfsHcOperationBusMasterRead,
+ ///
+ /// A write operation from system memory by a bus master.
+ ///
+ EdkiiUfsHcOperationBusMasterWrite,
+ ///
+ /// 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.
+ ///
+ EdkiiUfsHcOperationBusMasterCommonBuffer,
+ EdkiiUfsHcOperationMaximum
+} EDKII_UFS_HOST_CONTROLLER_OPERATION;
+
+/**
+ Provides the UFS controller-specific addresses needed to access system memory.
+
+ @param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
+ @param Operation Indicates if the bus master is going to read or write to system memory.
+ @param HostAddress The system memory address to map to the UFS controller.
+ @param NumberOfBytes On input the number of bytes to map. On output the number of bytes
+ that were mapped.
+ @param DeviceAddress The resulting map address for the bus master UFS controller to use to
+ access the hosts HostAddress.
+ @param Mapping A resulting value to pass to Unmap().
+
+ @retval EFI_SUCCESS The range was mapped for the returned NumberOfBytes.
+ @retval EFI_UNSUPPORTED The HostAddress cannot be mapped as a common buffer.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
+ @retval EFI_DEVICE_ERROR The system hardware could not map the requested address.
+
+**/
+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
+ );
+
+/**
+ Completes the Map() operation and releases any corresponding resources.
+
+ @param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
+ @param Mapping The mapping value returned from Map().
+
+ @retval EFI_SUCCESS The range was unmapped.
+ @retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_UFS_HC_UNMAP)(
+ IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This,
+ IN VOID *Mapping
+ );
+
+/**
+ Allocates pages that are suitable for an EfiUfsHcOperationBusMasterCommonBuffer
+ mapping.
+
+ @param This A pointer to the EFI_UFS_HOST_CONTROLLER_PROTOCOL instance.
+ @param Type This parameter is not used and must be ignored.
+ @param MemoryType The type of memory to allocate, EfiBootServicesData or
+ EfiRuntimeServicesData.
+ @param Pages The number of pages to allocate.
+ @param HostAddress A pointer to store the base system memory address of the
+ allocated range.
+ @param Attributes The requested bit mask of attributes for the allocated range.
+
+ @retval EFI_SUCCESS The requested memory pages were allocated.
+ @retval EFI_UNSUPPORTED Attributes is unsupported. The only legal attribute bits are
+ MEMORY_WRITE_COMBINE and MEMORY_CACHED.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
+
+**/
+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
+ );
+
+/**
+ 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().
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_UFS_HC_FREE_BUFFER)(
+ 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.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_UFS_HC_FLUSH)(
+ IN EDKII_UFS_HOST_CONTROLLER_PROTOCOL *This
+ );
+
+///
+/// UFS Host Controller Protocol structure.
+///
+struct _EDKII_UFS_HOST_CONTROLLER_PROTOCOL {
+ EDKII_UFS_HC_GET_MMIO_BAR GetUfsHcMmioBar;
+ EDKII_UFS_HC_ALLOCATE_BUFFER AllocateBuffer;
+ EDKII_UFS_HC_FREE_BUFFER FreeBuffer;
+ EDKII_UFS_HC_MAP Map;
+ EDKII_UFS_HC_UNMAP Unmap;
+ EDKII_UFS_HC_FLUSH Flush;
+};
+
+///
+/// UFS Host Controller Protocol GUID variable.
+///
+extern EFI_GUID gEdkiiUfsHostControllerProtocolGuid;
+
+#endif
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