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1/** @file\r
2 Header file of Redfish Configuration Handler UEFI driver.\r
3\r
4 Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
5 (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>\r
6\r
7 SPDX-License-Identifier: BSD-2-Clause-Patent\r
8\r
9**/\r
10\r
11#ifndef EFI_REDFISH_CONFIG_HANDLER_DRIVER_H_\r
12#define EFI_REDFISH_CONFIG_HANDLER_DRIVER_H_\r
13\r
14#include "RedfishConfigHandlerCommon.h"\r
15\r
16//\r
17// UEFI Driver Model Protocols\r
18//\r
19\r
20#include <Protocol/DriverBinding.h>\r
21#include <Protocol/RedfishDiscover.h>\r
22#include <Protocol/RestEx.h>\r
23\r
24//\r
25// Protocol instances\r
26//\r
27extern EFI_DRIVER_BINDING_PROTOCOL gRedfishConfigDriverBinding;\r
28\r
29extern REDFISH_CONFIG_DRIVER_DATA gRedfishConfigData;\r
30extern EDKII_REDFISH_CREDENTIAL_PROTOCOL *gCredential;\r
31extern EFI_EVENT gEndOfDxeEvent;\r
32extern EFI_EVENT gExitBootServiceEvent;\r
33\r
34/**\r
35 Tests to see if this driver supports a given controller. If a child device is provided,\r
36 it further tests to see if this driver supports creating a handle for the specified child device.\r
37\r
38 This function checks to see if the driver specified by This supports the device specified by\r
39 ControllerHandle. Drivers will typically use the device path attached to\r
40 ControllerHandle and/or the services from the bus I/O abstraction attached to\r
41 ControllerHandle to determine if the driver supports ControllerHandle. This function\r
42 may be called many times during platform initialization. In order to reduce boot times, the tests\r
43 performed by this function must be very small, and take as little time as possible to execute. This\r
44 function must not change the state of any hardware devices, and this function must be aware that the\r
45 device specified by ControllerHandle may already be managed by the same driver or a\r
46 different driver. This function must match its calls to AllocatePages() with FreePages(),\r
47 AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().\r
48 Because ControllerHandle may have been previously started by the same driver, if a protocol is\r
49 already in the opened state, then it must not be closed with CloseProtocol(). This is required\r
50 to guarantee the state of ControllerHandle is not modified by this function.\r
51\r
52 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
53 @param[in] ControllerHandle The handle of the controller to test. This handle\r
54 must support a protocol interface that supplies\r
55 an I/O abstraction to the driver.\r
56 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
57 parameter is ignored by device drivers, and is optional for bus\r
58 drivers. For bus drivers, if this parameter is not NULL, then\r
59 the bus driver must determine if the bus controller specified\r
60 by ControllerHandle and the child controller specified\r
61 by RemainingDevicePath are both supported by this\r
62 bus driver.\r
63\r
64 @retval EFI_SUCCESS The device specified by ControllerHandle and\r
65 RemainingDevicePath is supported by the driver specified by This.\r
66 @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
67 RemainingDevicePath is already being managed by the driver\r
68 specified by This.\r
69 @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
70 RemainingDevicePath is already being managed by a different\r
71 driver or an application that requires exclusive access.\r
72 Currently not implemented.\r
73 @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
74 RemainingDevicePath is not supported by the driver specified by This.\r
75**/\r
76EFI_STATUS\r
77EFIAPI\r
78RedfishConfigDriverBindingSupported (\r
79 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
80 IN EFI_HANDLE ControllerHandle,\r
81 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
82 );\r
83\r
84/**\r
85 Starts a device controller or a bus controller.\r
86\r
87 The Start() function is designed to be invoked from the EFI boot service ConnectController().\r
88 As a result, much of the error checking on the parameters to Start() has been moved into this\r
89 common boot service. It is legal to call Start() from other locations,\r
90 but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
91 1. ControllerHandle must be a valid EFI_HANDLE.\r
92 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r
93 EFI_DEVICE_PATH_PROTOCOL.\r
94 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r
95 have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.\r
96\r
97 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
98 @param[in] ControllerHandle The handle of the controller to start. This handle\r
99 must support a protocol interface that supplies\r
100 an I/O abstraction to the driver.\r
101 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
102 parameter is ignored by device drivers, and is optional for bus\r
103 drivers. For a bus driver, if this parameter is NULL, then handles\r
104 for all the children of Controller are created by this driver.\r
105 If this parameter is not NULL and the first Device Path Node is\r
106 not the End of Device Path Node, then only the handle for the\r
107 child device specified by the first Device Path Node of\r
108 RemainingDevicePath is created by this driver.\r
109 If the first Device Path Node of RemainingDevicePath is\r
110 the End of Device Path Node, no child handle is created by this\r
111 driver.\r
112\r
113 @retval EFI_SUCCESS The driver is started.\r
114 @retval EFI_ALREADY_STARTED The driver was already started.\r
115\r
116**/\r
117EFI_STATUS\r
118EFIAPI\r
119RedfishConfigDriverBindingStart (\r
120 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
121 IN EFI_HANDLE ControllerHandle,\r
122 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
123 );\r
124\r
125/**\r
126 Stops a device controller or a bus controller.\r
127\r
128 The Stop() function is designed to be invoked from the EFI boot service DisconnectController().\r
129 As a result, much of the error checking on the parameters to Stop() has been moved\r
130 into this common boot service. It is legal to call Stop() from other locations,\r
131 but the following calling restrictions must be followed, or the system behavior will not be deterministic.\r
132 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r
133 same driver's Start() function.\r
134 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r
135 EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r
136 Start() function, and the Start() function must have called OpenProtocol() on\r
137 ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
138\r
139 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
140 @param[in] ControllerHandle A handle to the device being stopped. The handle must\r
141 support a bus specific I/O protocol for the driver\r
142 to use to stop the device.\r
143 @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
144 @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
145 if NumberOfChildren is 0.\r
146\r
147 @retval EFI_SUCCESS The device was stopped.\r
148 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
149\r
150**/\r
151EFI_STATUS\r
152EFIAPI\r
153RedfishConfigDriverBindingStop (\r
154 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
155 IN EFI_HANDLE ControllerHandle,\r
156 IN UINTN NumberOfChildren,\r
157 IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r
158 );\r
159#endif\r