diff options
Diffstat (limited to 'src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/ServiceBinding.h')
-rw-r--r-- | src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/ServiceBinding.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/ServiceBinding.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/ServiceBinding.h new file mode 100644 index 0000000000..546a0d0973 --- /dev/null +++ b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/ServiceBinding.h @@ -0,0 +1,94 @@ +/** @file + UEFI Service Binding Protocol is defined in UEFI specification. + + The file defines the generic Service Binding Protocol functions. + It provides services that are required to create and destroy child + handles that support a given set of protocols. + + Copyright (c) 2006 - 2016, 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 + which 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 __EFI_SERVICE_BINDING_H__ +#define __EFI_SERVICE_BINDING_H__ + +/// +/// Forward reference for pure ANSI compatability +/// +typedef struct _EFI_SERVICE_BINDING_PROTOCOL EFI_SERVICE_BINDING_PROTOCOL; + +/** + Creates a child handle and installs a protocol. + + The CreateChild() function installs a protocol on ChildHandle. + If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle. + If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle. + + @param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. + @param ChildHandle Pointer to the handle of the child to create. If it is NULL, + then a new handle is created. If it is a pointer to an existing UEFI handle, + then the protocol is added to the existing UEFI handle. + + @retval EFI_SUCCES The protocol was added to ChildHandle. + @retval EFI_INVALID_PARAMETER ChildHandle is NULL. + @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create + the child + @retval other The child handle was not created + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_SERVICE_BINDING_CREATE_CHILD)( + IN EFI_SERVICE_BINDING_PROTOCOL *This, + IN OUT EFI_HANDLE *ChildHandle + ); + +/** + Destroys a child handle with a protocol installed on it. + + The DestroyChild() function does the opposite of CreateChild(). It removes a protocol + that was installed by CreateChild() from ChildHandle. If the removed protocol is the + last protocol on ChildHandle, then ChildHandle is destroyed. + + @param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. + @param ChildHandle Handle of the child to destroy + + @retval EFI_SUCCES The protocol was removed from ChildHandle. + @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed. + @retval EFI_INVALID_PARAMETER Child handle is NULL. + @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle + because its services are being used. + @retval other The child handle was not destroyed + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_SERVICE_BINDING_DESTROY_CHILD)( + IN EFI_SERVICE_BINDING_PROTOCOL *This, + IN EFI_HANDLE ChildHandle + ); + +/// +/// The EFI_SERVICE_BINDING_PROTOCOL provides member functions to create and destroy +/// child handles. A driver is responsible for adding protocols to the child handle +/// in CreateChild() and removing protocols in DestroyChild(). It is also required +/// that the CreateChild() function opens the parent protocol BY_CHILD_CONTROLLER +/// to establish the parent-child relationship, and closes the protocol in DestroyChild(). +/// The pseudo code for CreateChild() and DestroyChild() is provided to specify the +/// required behavior, not to specify the required implementation. Each consumer of +/// a software protocol is responsible for calling CreateChild() when it requires the +/// protocol and calling DestroyChild() when it is finished with that protocol. +/// +struct _EFI_SERVICE_BINDING_PROTOCOL { + EFI_SERVICE_BINDING_CREATE_CHILD CreateChild; + EFI_SERVICE_BINDING_DESTROY_CHILD DestroyChild; +}; + +#endif |