+/**\r
+ Read or write specified device descriptor of a UFS device.\r
+\r
+ The function is used to read/write UFS device descriptors. The consumer of this API is\r
+ responsible for allocating the data buffer pointed by Descriptor.\r
+\r
+ @param[in] This The pointer to the EFI_UFS_DEVICE_CONFIG_PROTOCOL instance.\r
+ @param[in] Read The boolean variable to show r/w direction.\r
+ @param[in] DescId The ID of device descriptor.\r
+ @param[in] Index The Index of device descriptor.\r
+ @param[in] Selector The Selector of device descriptor.\r
+ @param[in, out] Descriptor The buffer of device descriptor to be read or written.\r
+ @param[in, out] DescSize The size of device descriptor buffer. On input, the size, in bytes,\r
+ of the data buffer specified by Descriptor. On output, the number\r
+ of bytes that were actually transferred.\r
+\r
+ @retval EFI_SUCCESS The device descriptor is read/written successfully.\r
+ @retval EFI_INVALID_PARAMETER This is NULL or Descriptor is NULL or DescSize is NULL.\r
+ DescId, Index and Selector are invalid combination to point to a\r
+ type of UFS device descriptor.\r
+ @retval EFI_DEVICE_ERROR The device descriptor is not read/written successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+UfsRwUfsDescriptor (\r
+ IN EFI_UFS_DEVICE_CONFIG_PROTOCOL *This,\r
+ IN BOOLEAN Read,\r
+ IN UINT8 DescId,\r
+ IN UINT8 Index,\r
+ IN UINT8 Selector,\r
+ IN OUT UINT8 *Descriptor,\r
+ IN OUT UINT32 *DescSize\r
+ );\r
+\r
+/**\r
+ Read or write specified flag of a UFS device.\r
+\r
+ The function is used to read/write UFS flag descriptors. The consumer of this API is responsible\r
+ for allocating the buffer pointed by Flag. The buffer size is 1 byte as UFS flag descriptor is\r
+ just a single Boolean value that represents a TRUE or FALSE, '0' or '1', ON or OFF type of value.\r
+\r
+ @param[in] This The pointer to the EFI_UFS_DEVICE_CONFIG_PROTOCOL instance.\r
+ @param[in] Read The boolean variable to show r/w direction.\r
+ @param[in] FlagId The ID of flag to be read or written.\r
+ @param[in, out] Flag The buffer to set or clear flag.\r
+\r
+ @retval EFI_SUCCESS The flag descriptor is set/clear successfully.\r
+ @retval EFI_INVALID_PARAMETER This is NULL or Flag is NULL.\r
+ FlagId is an invalid UFS flag ID.\r
+ @retval EFI_DEVICE_ERROR The flag is not set/clear successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+UfsRwUfsFlag (\r
+ IN EFI_UFS_DEVICE_CONFIG_PROTOCOL *This,\r
+ IN BOOLEAN Read,\r
+ IN UINT8 FlagId,\r
+ IN OUT UINT8 *Flag\r
+ );\r
+\r
+/**\r
+ Read or write specified attribute of a UFS device.\r
+\r
+ The function is used to read/write UFS attributes. The consumer of this API is responsible for\r
+ allocating the data buffer pointed by Attribute.\r
+\r
+ @param[in] This The pointer to the EFI_UFS_DEVICE_CONFIG_PROTOCOL instance.\r
+ @param[in] Read The boolean variable to show r/w direction.\r
+ @param[in] AttrId The ID of Attribute.\r
+ @param[in] Index The Index of Attribute.\r
+ @param[in] Selector The Selector of Attribute.\r
+ @param[in, out] Attribute The buffer of Attribute to be read or written.\r
+ @param[in, out] AttrSize The size of Attribute buffer. On input, the size, in bytes, of the\r
+ data buffer specified by Attribute. On output, the number of bytes\r
+ that were actually transferred.\r
+\r
+ @retval EFI_SUCCESS The attribute is read/written successfully.\r
+ @retval EFI_INVALID_PARAMETER This is NULL or Attribute is NULL or AttrSize is NULL.\r
+ AttrId, Index and Selector are invalid combination to point to a\r
+ type of UFS attribute.\r
+ @retval EFI_DEVICE_ERROR The attribute is not read/written successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+UfsRwUfsAttribute (\r
+ IN EFI_UFS_DEVICE_CONFIG_PROTOCOL *This,\r
+ IN BOOLEAN Read,\r
+ IN UINT8 AttrId,\r
+ IN UINT8 Index,\r
+ IN UINT8 Selector,\r
+ IN OUT UINT8 *Attribute,\r
+ IN OUT UINT32 *AttrSize\r
+ );\r
+\r
+/**\r
+ Initializes UfsHcInfo field in private data.\r
+\r
+ @param[in] Private Pointer to host controller private data.\r
+\r
+ @retval EFI_SUCCESS UfsHcInfo initialized successfully.\r
+ @retval Others Failed to initalize UfsHcInfo.\r
+**/\r
+EFI_STATUS\r
+GetUfsHcInfo (\r
+ IN UFS_PASS_THRU_PRIVATE_DATA *Private\r
+ );\r
+\r