--- /dev/null
+/*++\r
+\r
+Copyright (c) 2004 - 2007, Intel Corporation \r
+All rights reserved. This program and the accompanying materials \r
+are licensed and made available under the terms and conditions of the BSD License \r
+which accompanies this distribution. The full text of the license may be found at \r
+http://opensource.org/licenses/bsd-license.php \r
+ \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+Module Name:\r
+\r
+ EfiDriverModelLib.c\r
+\r
+Abstract:\r
+\r
+ Light weight lib to support EFI drivers.\r
+\r
+--*/\r
+\r
+#include "Tiano.h"\r
+#include "EfiDriverLib.h"\r
+\r
+EFI_STATUS\r
+EfiLibInstallDriverBinding (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable,\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,\r
+ IN EFI_HANDLE DriverBindingHandle\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Intialize a driver by installing the Driver Binding Protocol onto the \r
+ driver's DriverBindingHandle. This is typically the same as the driver's\r
+ ImageHandle, but it can be different if the driver produces multiple\r
+ DriverBinding Protocols. This function also initializes the EFI Driver\r
+ Library that initializes the global variables gST, gBS, gRT.\r
+\r
+Arguments:\r
+\r
+ ImageHandle - The image handle of the driver\r
+\r
+ SystemTable - The EFI System Table that was passed to the driver's entry point\r
+\r
+ DriverBinding - A Driver Binding Protocol instance that this driver is producing\r
+\r
+ DriverBindingHandle - The handle that DriverBinding is to be installe onto. If this\r
+ parameter is NULL, then a new handle is created.\r
+\r
+Returns: \r
+\r
+ EFI_SUCCESS is DriverBinding is installed onto DriverBindingHandle\r
+\r
+ Otherwise, then return status from gBS->InstallProtocolInterface()\r
+\r
+--*/\r
+{\r
+ EfiInitializeDriverLib (ImageHandle, SystemTable);\r
+\r
+ DriverBinding->ImageHandle = ImageHandle;\r
+\r
+ DriverBinding->DriverBindingHandle = DriverBindingHandle;\r
+\r
+ return gBS->InstallProtocolInterface (\r
+ &DriverBinding->DriverBindingHandle,\r
+ &gEfiDriverBindingProtocolGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ DriverBinding\r
+ );\r
+}\r
+\r
+EFI_STATUS\r
+EfiLibInstallAllDriverProtocols (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE * SystemTable,\r
+ IN EFI_DRIVER_BINDING_PROTOCOL * DriverBinding,\r
+ IN EFI_HANDLE DriverBindingHandle,\r
+#if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r
+ IN EFI_COMPONENT_NAME2_PROTOCOL * ComponentName, OPTIONAL\r
+#else\r
+ IN EFI_COMPONENT_NAME_PROTOCOL * ComponentName, OPTIONAL\r
+#endif\r
+ IN EFI_DRIVER_CONFIGURATION_PROTOCOL * DriverConfiguration, OPTIONAL\r
+ IN EFI_DRIVER_DIAGNOSTICS_PROTOCOL * DriverDiagnostics OPTIONAL\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Intialize a driver by installing the Driver Binding Protocol onto the \r
+ driver's DriverBindingHandle. This is typically the same as the driver's\r
+ ImageHandle, but it can be different if the driver produces multiple\r
+ DriverBinding Protocols. This function also initializes the EFI Driver\r
+ Library that initializes the global variables gST, gBS, gRT.\r
+\r
+Arguments:\r
+\r
+ ImageHandle - The image handle of the driver\r
+\r
+ SystemTable - The EFI System Table that was passed to the driver's entry point\r
+\r
+ DriverBinding - A Driver Binding Protocol instance that this driver is producing\r
+\r
+ DriverBindingHandle - The handle that DriverBinding is to be installe onto. If this\r
+ parameter is NULL, then a new handle is created.\r
+\r
+ ComponentName - A Component Name Protocol instance that this driver is producing\r
+\r
+ DriverConfiguration - A Driver Configuration Protocol instance that this driver is producing\r
+ \r
+ DriverDiagnostics - A Driver Diagnostics Protocol instance that this driver is producing\r
+\r
+Returns: \r
+\r
+ EFI_SUCCESS if all the protocols were installed onto DriverBindingHandle\r
+\r
+ Otherwise, then return status from gBS->InstallProtocolInterface()\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+\r
+ Status = EfiLibInstallDriverBinding (ImageHandle, SystemTable, DriverBinding, DriverBindingHandle);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ if (ComponentName != NULL) {\r
+ Status = gBS->InstallProtocolInterface (\r
+ &DriverBinding->DriverBindingHandle,\r
+#if (EFI_SPECIFICATION_VERSION >= 0x00020000)\r
+ &gEfiComponentName2ProtocolGuid,\r
+#else\r
+ &gEfiComponentNameProtocolGuid,\r
+#endif\r
+ EFI_NATIVE_INTERFACE,\r
+ ComponentName\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ }\r
+\r
+ if (DriverConfiguration != NULL) {\r
+ Status = gBS->InstallProtocolInterface (\r
+ &DriverBinding->DriverBindingHandle,\r
+ &gEfiDriverConfigurationProtocolGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ DriverConfiguration\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ }\r
+\r
+ if (DriverDiagnostics != NULL) {\r
+ Status = gBS->InstallProtocolInterface (\r
+ &DriverBinding->DriverBindingHandle,\r
+ &gEfiDriverDiagnosticsProtocolGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ DriverDiagnostics\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EfiLibTestManagedDevice (\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_HANDLE DriverBindingHandle,\r
+ IN EFI_GUID *ManagedProtocolGuid\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Test to see if the controller is managed by a specific driver.\r
+\r
+Arguments:\r
+\r
+ ControllerHandle - Handle for controller to test\r
+\r
+ DriverBindingHandle - Driver binding handle for controller\r
+\r
+ ManagedProtocolGuid - The protocol guid the driver opens on controller\r
+\r
+Returns: \r
+\r
+ EFI_SUCCESS - The controller is managed by the driver\r
+\r
+ EFI_UNSUPPORTED - The controller is not managed by the driver\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ VOID *ManagedInterface;\r
+\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ ManagedProtocolGuid,\r
+ &ManagedInterface,\r
+ DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ ManagedProtocolGuid,\r
+ DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ if (Status != EFI_ALREADY_STARTED) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EfiLibTestChildHandle (\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_HANDLE ChildHandle,\r
+ IN EFI_GUID *ConsumedGuid\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Test to see if the child handle is the child of the controller\r
+\r
+Arguments:\r
+\r
+ ControllerHandle - Handle for controller (parent)\r
+\r
+ ChildHandle - Child handle to test\r
+\r
+ ConsumsedGuid - Protocol guid consumed by child from controller\r
+\r
+Returns: \r
+\r
+ EFI_SUCCESS - The child handle is the child of the controller\r
+\r
+ EFI_UNSUPPORTED - The child handle is not the child of the controller\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r
+ UINTN EntryCount;\r
+ UINTN Index;\r
+\r
+ //\r
+ // Retrieve the list of agents that are consuming one of the protocols\r
+ // on ControllerHandle that the children consume\r
+ //\r
+ Status = gBS->OpenProtocolInformation (\r
+ ControllerHandle,\r
+ ConsumedGuid,\r
+ &OpenInfoBuffer,\r
+ &EntryCount\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ //\r
+ // See if one of the agents is ChildHandle\r
+ //\r
+ Status = EFI_UNSUPPORTED;\r
+ for (Index = 0; Index < EntryCount; Index++) {\r
+ if (OpenInfoBuffer[Index].ControllerHandle == ChildHandle &&\r
+ OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+ }\r
+ gBS->FreePool (OpenInfoBuffer);\r
+ return Status;\r
+}\r
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