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d1f95000 1/** @file\r
2\r
3 The file provides services to call for drivers to leverage the\r
4 EFI configuration driver interface.\r
5 \r
6 Copyright (c) 2006 - 2007, Intel Corporation\r
7 All rights reserved. This program and the accompanying materials \r
8 are licensed and made available under the terms and conditions of the BSD License \r
9 which accompanies this distribution. The full text of the license may be found at \r
10 http://opensource.org/licenses/bsd-license.php \r
11\r
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
14\r
15 Module Name: FormBrowser.h\r
16\r
17**/\r
18\r
19#ifndef __EFI_FORM_BROWSER_H__\r
20#define __EFI_FORM_BROWSER_H__\r
21\r
22\r
23#define EFI_FORM_BROWSER_PROTOCOL_GUID \\r
24 { 0xe5a1333e, 0xe1b4, 0x4e55, { 0xce, 0xeb, 0x35, 0xc3, 0xef, 0x13, 0x34, 0x43 } }\r
25\r
26\r
27typedef struct _EFI_FORM_BROWSER_PROTOCOL EFI_FORM_BROWSER_PROTOCOL;\r
28\r
29\r
30\r
31/**\r
32 \r
33 @param LeftColumn Value that designates the text column\r
34 where the browser window will begin from\r
35 the left-hand side of the screen\r
36 RightColumn Value that designates the text\r
37 column where the browser window will end\r
38 on the right-hand side of the screen.\r
39\r
40 @param TopRow Value that designates the text row from the\r
41 top of the screen where the browser window\r
42 will start.\r
43\r
44 @param BottomRow Value that designates the text row from the\r
45 bottom of the screen where the browser\r
46 window will end. \r
47**/\r
48typedef struct {\r
49 UINTN LeftColumn;\r
50 UINTN RightColumn;\r
51 UINTN TopRow;\r
52 UINTN BottomRow;\r
53} EFI_SCREEN_DESCRIPTOR;\r
54\r
55/**\r
56 \r
57 This function is the primary interface to the internal\r
58 forms-based browser. By calling this routine, one is directing\r
59 the browser to use a variety of passed-in information or\r
60 primarily use the HII database as the source of information.\r
61\r
62 @param This A pointer to the EFI_FORM_BROWSER_PROTOCOL\r
63 instance.\r
64\r
65 @param Handle A pointer to an array of HII handles to\r
66 display. This value should correspond to the\r
67 value of the HII form package that is required\r
68 to be displayed.\r
69\r
70 @param HandleCount The number of handles in the array\r
71 specified by Handle.\r
72\r
73 @param SingleUse If FALSE, the browser operates as a standard\r
74 forms processor and exits only when\r
75 explicitly requested by the user. If TRUE,\r
76 the browser will return immediately after\r
77 processing the first user-generated\r
78 selection.\r
79\r
80 @param ScreenDimensions Allows the browser to be called so\r
81 that it occupies a portion of the\r
82 physical screen instead of\r
83 dynamically determining the screen\r
84 dimensions. If the input values\r
85 violate the platform policy then the\r
86 dimensions will be dynamically\r
87 adjusted to comply.\r
88\r
89 @param ResetRequired This BOOLEAN value will tell the caller\r
90 if a reset is required based on the data\r
91 that might have been changed. The\r
92 ResetRequired parameter is primarily\r
93 applicable for configuration\r
94 applications, and is an optional\r
95 parameter.\r
96\r
97 @retval EFI_SUCCESS The function completed successfully\r
98 \r
99 @retval EFI_NOT_FOUND The variable was not found.\r
100 \r
101 @retval EFI_BUFFER_TOO_SMALL The DataSize is too small for\r
102 the result. DataSize has been\r
103 updated with the size needed to\r
104 complete the request.\r
105 \r
106 @retval EFI_INVALID_PARAMETER One of the parameters has an\r
107 invalid value.\r
108 \r
109 @retval EFI_DEVICE_ERROR The variable could not be saved due\r
110 to a hardware failure.\r
111 \r
112**/\r
113typedef\r
114EFI_STATUS\r
115(EFIAPI *EFI_SEND_FORM) (\r
116 IN CONST EFI_FORM_BROWSER_PROTOCOL *This,\r
117 IN CONST EFI_HII_HANDLE *Handle,\r
118 IN CONST UINTN HandleCount,\r
119 IN CONST BOOLEAN SingleUse,\r
120 IN CONST EFI_SCREEN_DESCRIPTOR *ScreenDimensions, OPTIONAL\r
121 OUT BOOLEAN *ResetRequired OPTIONAL\r
122);\r
123\r
124\r
125/**\r
126 \r
127 This routine is called by a routine which was called by the\r
128 browser. This routine called this service in the browser to\r
129 retrieve or set certain uncommitted state information.\r
130\r
131 @param This A pointer to the EFI_FORM_BROWSER_PROTOCOL\r
132 instance.\r
133\r
134 @param ResultsDataSize A pointer to the size of the buffer\r
135 associated with ResultsData. \r
136\r
137 @param ResultsData A string returned from an IFR browser or\r
138 equivalent. The results string will have\r
139 no routing information in them.\r
140\r
141 @param RetrieveData A BOOLEAN field which allows an agent to\r
142 retrieve (if RetrieveData = TRUE) data\r
143 from the uncommitted browser state\r
144 information or set (if RetrieveData =\r
145 FALSE) data in the uncommitted browser\r
146 state information.\r
147\r
148 @param VariableGuid An optional field to indicate the target\r
149 variable GUID name to use.\r
150\r
151 @param VariableName An optional field to indicate the target\r
152 human-readable variable name.\r
153\r
154\r
155 @retval EFI_SUCCESS The results have been distributed or are\r
156 awaiting distribution.\r
157 \r
158 @retval EFI_OUT_OF_RESOURCES The ResultsDataSize specified\r
159 was too small to contain the\r
160 results data.\r
161\r
162**/\r
163typedef\r
164EFI_STATUS\r
165(EFIAPI *EFI_BROWSER_CALLBACK ) (\r
166 IN CONST EFI_FORM_BROWSER_PROTOCOL *This,\r
167 IN OUT UINTN *ResultsDataSize,\r
168 IN OUT EFI_STRING ResultsData,\r
169 IN CONST BOOLEAN RetrieveData,\r
170 IN CONST EFI_GUID *VariableGuid, OPTIONAL\r
171 IN CONST CHAR16 *VariableName OPTIONAL\r
172);\r
173\r
174/**\r
175 \r
176 This protocol is the interface to call for drivers to leverage\r
177 the EFI configuration driver interface.\r
178\r
179 @param SendForm Provides direction to the configuration\r
180 driver whether to use the HII database or to\r
181 use a passed-in set of data. This functions\r
182 also establishes a pointer to the calling\r
183 driver's callback interface. See the\r
184 SendForm() function description.\r
185\r
186 @param BrowserCallback Routine used to expose internal\r
187 configuration state of the browser.\r
188 This is primarily used by callback\r
189 handler routines which were called by\r
190 the browser and in-turn need to get\r
191 additional information from the\r
192 browser itself. See the\r
193 BrowserCallback() function\r
194 description.\r
195\r
196**/\r
197struct _EFI_FORM_BROWSER_PROTOCOL {\r
198 EFI_SEND_FORM SendForm;\r
199 EFI_BROWSER_CALLBACK BrowserCallback;\r
200} ;\r
201\r
202\r
203extern EFI_GUID gEfiFormBrowserProtocolGuid;\r
204\r
205#endif\r
206\r
207\r