/** @file EFI Driver Health Protocol Copyright (c) 2006 - 2008, Intel Corporation All rights reserved. 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_DRIVER_HEALTH_H__ #define __EFI_DRIVER_HEALTH_H__ #define EFI_DRIVER_HEALTH_PROTOCOL_GUID \ { \ 0x2a534210, 0x9280, 0x41d8, { 0xae, 0x79, 0xca, 0xda, 0x1, 0xa2, 0xb1, 0x27 } \ } typedef struct _EFI_DRIVER_HEALTH_PROTOCOL EFI_DRIVER_HEALTH_PROTOCOL; /// /// EFI_DRIVER_HEALTH_HEALTH_STATUS /// typedef enum { EfiDriverHealthStatusHealthy, EfiDriverHealthStatusRepairRequired, EfiDriverHealthStatusConfigurationRequired, EfiDriverHealthStatusFailed, EfiDriverHealthStatusReconnectRequired, EfiDriverHealthStatusRebootRequired } EFI_DRIVER_HEALTH_HEALTH_STATUS; /// /// EFI_DRIVER_HEALTH_HII_MESSAGE /// typedef struct { EFI_HII_HANDLE HiiHandle; EFI_STRING_ID StringId; UINT64 Reserved; } EFI_DRIVER_HEALTH_HII_MESSAGE; /** Reports the progress of a repair operation @param Value A value between 0 and Limit that identifies the current progress of the repair operation. @param Limit The maximum value of Value for the current repair operation. For example, a driver that wants to specify progress in percent would use a Limit value of 100. **/ typedef VOID (EFIAPI *EFI_DRIVER_HEALTH_REPAIR_PROGRESS_NOTIFY)( IN UINTN Value, IN UINTN Limit ); /** Retrieves the health status of a controller in the platform. This function can also optionally return warning messages, error messages, and a set of HII Forms that may be repair a controller that is not proper configured. @param This A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance. @param ControllerHandle The handle of the controller to retrieve the health status on. This is an optional parameter that may be NULL. If this parameter is NULL, then the value of ChildHandle is ignored, and the combined health status of all the devices that the driver is managing is returned. @param ChildHandle The handle of the child controller to retrieve the health status on. This is an optional parameter that may be NULL. This parameter is ignored of ControllerHandle is NULL. It will be NULL for device drivers. It will also be NULL for bus drivers when an attempt is made to collect the health status of the bus controller. If will not be NULL when an attempt is made to collect the health status for a child controller produced by the driver. @param HealthStatus A pointer to the health status that is returned by this function. This is an optional parameter that may be NULL. This parameter is ignored of ControllerHandle is NULL. The health status for the controller specified by ControllerHandle and ChildHandle is returned. @param MessageList A pointer to an array of warning or error messages associated with the controller specified by ControllerHandle and ChildHandle. This is an optional parameter that may be NULL. MessageList is allocated by this function with the EFI Boot Service AllocatePool(), and it is the caller's responsibility to free MessageList with the EFI Boot Service FreePool(). Each message is specified by tuple of an EFI_HII_HANDLE and an EFI_STRING_ID. The array of messages is terminated by tuple containing a EFI_HII_HANDLE with a value of NULL. The EFI_HII_STRING_PROTOCOL.GetString() function can be used to retrieve the warning or error message as a Null-terminated Unicode string in a specific language. Messages may be returned for any of the HealthStatus values except EfiDriverHealthStatusReconnectRequired and EfiDriverHealthStatusRebootRequired. @param FormHiiHandle A pointer to the HII handle for an HII form associated with the controller specified by ControllerHandle and ChildHandle. This is an optional parameter that may be NULL. An HII form is specified by a combination of an EFI_HII_HANDLE and an EFI_GUID that identifies the Form Set GUID. The EFI_FORM_BROWSER2_PROTOCOL.SendForm() function can be used to display and allow the user to make configuration changes to the HII Form. An HII form may only be returned with a HealthStatus value of EfiDriverHealthStatusConfigurationRequired. @param FormSetGuid A pointer to the GUID for an HII form associated with the controller specified by ControllerHandle and ChildHandle. This is an optional parameter that may be NULL. An HII form is specified by a combination of an EFI_HII_HANDLE and an EFI_GUID that identifies the Form Set GUID. The EFI_FORM_BROWSER2_PROTOCOL.SendForm() function can be used to display and allow the user to make configuration changes to the HII Form. An HII form may only be returned with a HealthStatus value of EfiDriverHealthStatusConfigurationRequired. @retval EFI_SUCCESS ControllerHandle is NULL, and all the controllers managed by this driver specified by This have a health status of EfiDriverHealthStatusHealthy with no warning messages to be returned. The ChildHandle, HealthStatus, MessageList, and FormList parameters are ignored. @retval EFI_DEVICE_ERROR ControllerHandle is NULL, and one or more of the controllers managed by this driver specified by This do not have a health status of EfiDriverHealthStatusHealthy. The ChildHandle, HealthStatus, MessageList, and FormList parameters are ignored. @retval EFI_DEVICE_ERROR ControllerHandle is NULL, and one or more of the controllers managed by this driver specified by This have one or more warning and/or error messages. The ChildHandle, HealthStatus, MessageList, and FormList parameters are ignored. @retval EFI_SUCCESS ControllerHandle is not NULL and the health status of the controller specified by ControllerHandle and ChildHandle was returned in HealthStatus. A list of warning and error messages may be optionally returned in MessageList, and a list of HII Forms may be optionally returned in FormList. @retval EFI_UNSUPPORTED ControllerHandle is not NULL, and the controller specified by ControllerHandle and ChildHandle is not currently being managed by the driver specified by This. @retval EFI_INVALID_PARAMETER HealthStatus is NULL. @retval EFI_OUT_OF_RESOURCES MessageList is not NULL, and there are not enough resource available to allocate memory for MessageList. **/ typedef EFI_STATUS (EFIAPI *EFI_DRIVER_HEALTH_GET_HEALTH_STATUS)( IN EFI_DRIVER_HEALTH_PROTOCOL *This, IN EFI_HANDLE ControllerHandle OPTIONAL, IN EFI_HANDLE ChildHandle OPTIONAL, OUT EFI_DRIVER_HEALTH_HEALTH_STATUS *HealthStatus, OUT EFI_DRIVER_HEALTH_HII_MESSAGE **MessageList OPTIONAL, OUT EFI_HII_HANDLE *FormHiiHandle OPTIONAL, OUT EFI_GUID **FormSetGuid OPTIONAL ); /** Performs a repair operation on a controller in the platform. This function can optionally report repair progress information back to the platform. @param This A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance. @param ControllerHandle The handle of the controller to repair. @param ChildHandle The handle of the child controller to repair. This is an optional parameter that may be NULL. It will be NULL for device drivers. It will also be NULL for bus drivers when an attempt is made to repair a bus controller. If will not be NULL when an attempt is made to repair a child controller produced by the driver. @param ProgressNotification A notification function that may be used by a driver to report the progress of the repair operation. This is an optional parameter that may be NULL. @retval EFI_SUCCESS An attempt to repair the controller specified by ControllerHandle and ChildHandle was performed. The result of the repair operation can bet determined by calling GetHealthStatus(). @retval EFI_UNSUPPORTED The driver specified by This is not currently managing the controller specified by ControllerHandle and ChildHandle. @retval EFI_OUT_OF_RESOURCES There are not enough resources to perform the repair operation. */ typedef EFI_STATUS (EFIAPI *EFI_DRIVER_HEALTH_REPAIR)( IN EFI_DRIVER_HEALTH_PROTOCOL *This, IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE ChildHandle OPTIONAL, IN EFI_DRIVER_HEALTH_REPAIR_PROGRESS_NOTIFY ProgressNotification OPTIONAL ); /** When installed, the Driver Health Protocol produces a collection of services that allow the health status for a controller to be retrieved. If a controller is not in a usable state, status messages may be reported to the user, repair operations can be invoked, and the user may be asked to make software and/or hardware configuration changes. @par Protocol Description: The Driver Health Protocol is optionally produced by a driver that follows the EFI Driver Model. If an EFI Driver needs to report health status to the platform, provide warning or error messages to the user, perform length repair operations, or request the user to make hardware or software configuration changes, then the Driver Health Protocol must be produced. A controller that is managed by driver that follows the EFI Driver Model and produces the Driver Health Protocol must report the current health of the controllers that the driver is currently managing. The controller can initially be healthy, failed, require repair, or require configuration. If a controller requires configuration, and the user make configuration changes, the controller may then need to be reconnected or the system may need to be rebooted for the configuration changes to take affect. Figure 2-1 below shows all the possible health states of a controller and the legal transitions between the health states. @param GetHealthStatus Retrieves the health status of a controller in the platform. This function can also optionally return warning messages, error messages, and a set of HII Forms that may be repair a controller that is not properly configured. @param Repair Performs a repair operation on a controller in the platform. This function can optionally report repair progress information back to the platform. **/ struct _EFI_DRIVER_HEALTH_PROTOCOL { EFI_DRIVER_HEALTH_GET_HEALTH_STATUS GetHealthStatus; EFI_DRIVER_HEALTH_REPAIR Repair; }; extern EFI_GUID gEfiDriverHealthProtocolGuid; #endif