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d1f95000 1/** @file\r
ee6c452c 2 UEFI Platform to Driver Configuration Protocol is defined in UEFI specification.\r
3 \r
4 This is a protocol that is optionally produced by the platform and optionally consumed \r
5 by a UEFI Driver in its Start() function. This protocol allows the driver to receive \r
6 configuration information as part of being started.\r
d1f95000 7\r
a65c44c9 8 Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r
9df063a0 9 This program and the accompanying materials \r
d1f95000 10 are licensed and made available under the terms and conditions of the BSD License \r
11 which accompanies this distribution. The full text of the license may be found at \r
12 http://opensource.org/licenses/bsd-license.php \r
13\r
14 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
15 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
16\r
d1f95000 17**/\r
18\r
19#ifndef __PLATFORM_TO_DRIVER_CONFIGUARTION_H__\r
20#define __PLATFORM_TO_DRIVER_CONFIGUARTION_H__\r
21\r
22#define EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL_GUID \\r
23 { 0x642cd590, 0x8059, 0x4c0a, { 0xa9, 0x58, 0xc5, 0xec, 0x7, 0xd2, 0x3c, 0x4b } }\r
24\r
25\r
26typedef struct _EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL;\r
27\r
28\r
29/**\r
30 The UEFI driver must call Query early in the Start() function\r
31 before any time consuming operations are performed. If\r
32 ChildHandle is NULL the driver is requesting information from\r
33 the platform about the ControllerHandle that is being started.\r
34 Information returned from Query may lead to the drivers Start()\r
764f4d53 35 function failing.\r
630b4187 36 If the UEFI driver is a bus driver and producing a ChildHandle,\r
764f4d53 37 the driver must call Query after the child handle has been created\r
38 and an EFI_DEVICE_PATH_PROTOCOL has been placed on that handle,\r
39 but before any time consuming operation is performed. If information\r
40 return by Query may lead the driver to decide to not create the\r
41 ChildHandle. The driver must then cleanup and remove the ChildHandle\r
42 from the system.\r
43 The UEFI driver repeatedly calls Query, processes the information\r
44 returned by the platform, and calls Response passing in the\r
45 arguments returned from Query. The Instance value passed into\r
46 Response must be the same value passed into the corresponding\r
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47 call to Query. The UEFI driver must continuously call Query and\r
48 Response until EFI_NOT_FOUND is returned by Query.\r
49 If the UEFI driver does not recognize the ParameterTypeGuid, it\r
50 calls Response with a ConfigurationAction of\r
51 EfiPlatformConfigurationActionUnsupportedGuid. The UEFI driver\r
52 must then continue calling Query and Response until EFI_NOT_FOUND\r
53 is returned by Query. This gives the platform an opportunity to\r
54 pass additional configuration settings using a different\r
55 ParameterTypeGuid that may be supported by the driver.\r
764f4d53 56 An Instance value of zero means return the first ParameterBlock\r
57 in the set of unprocessed parameter blocks. The driver should\r
58 increment the Instance value by one for each successive call to Query.\r
d1f95000 59\r
4ca9b6c4 60 @param This A pointer to the EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL instance.\r
d1f95000 61 \r
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62 @param ControllerHandle The handle the platform will return\r
63 configuration information about.\r
d1f95000 64 \r
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65 @param ChildHandle The handle of the child controller to\r
66 return information on. This is an optional\r
67 parameter that may be NULL. It will be\r
630b4187 68 NULL for device drivers and for bus\r
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69 drivers that attempt to get options for\r
70 the bus controller. It will not be NULL\r
71 for a bus driver that attempts to get\r
72 options for one of its child controllers.\r
d1f95000 73 \r
74 \r
764f4d53 75 @param Instance Pointer to the Instance value. Zero means\r
76 return the first query data. The caller should\r
77 increment this value by one each time to retrieve\r
78 successive data.\r
79\r
80 @param ParameterTypeGuid An EFI_GUID that defines the contents\r
81 of ParameterBlock. UEFI drivers must\r
82 use the ParameterTypeGuid to determine\r
83 how to parse the ParameterBlock. The caller\r
84 should not attempt to free ParameterTypeGuid.\r
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85\r
86 @param ParameterBlock The platform returns a pointer to the\r
f754f721 87 ParameterBlock structure which\r
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88 contains details about the\r
89 configuration parameters specific to\r
90 the ParameterTypeGuid. This structure\r
91 is defined based on the protocol and\r
92 may be different for different\r
93 protocols. UEFI driver decodes this\r
94 structure and its contents based on\r
bbeea0de 95 ParameterTypeGuid. ParameterBlock is\r
f754f721 96 allocated by the platform and the\r
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97 platform is responsible for freeing\r
98 the ParameterBlock after Result is\r
99 called.\r
d1f95000 100\r
101 @param ParameterBlockSize The platform returns the size of\r
102 the ParameterBlock in bytes.\r
103\r
104\r
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105 @retval EFI_SUCCESS The platform return parameter\r
106 information for ControllerHandle.\r
d1f95000 107\r
4ca9b6c4 108 @retval EFI_NOT_FOUND No more unread Instance exists.\r
d1f95000 109\r
18bd7e85 110 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
d1f95000 111\r
112 @retval EFI_INVALID_PARAMETER Instance is NULL.\r
113\r
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114 @retval EFI_DEVICE_ERROR A device error occurred while\r
115 attempting to return parameter block\r
116 information for the controller\r
117 specified by ControllerHandle and\r
118 ChildHandle.\r
d1f95000 119\r
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120 @retval EFI_OUT_RESOURCES There are not enough resources\r
121 available to set the configuration\r
122 options for the controller specified\r
123 by ControllerHandle and ChildHandle.\r
d1f95000 124\r
125\r
126**/\r
127typedef\r
128EFI_STATUS\r
8b13229b 129(EFIAPI *EFI_PLATFORM_TO_DRIVER_CONFIGURATION_QUERY)(\r
d1f95000 130 IN CONST EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL *This,\r
131 IN CONST EFI_HANDLE ControllerHandle,\r
132 IN CONST EFI_HANDLE ChildHandle OPTIONAL,\r
764f4d53 133 IN CONST UINTN *Instance,\r
134 OUT EFI_GUID **ParameterTypeGuid,\r
135 OUT VOID **ParameterBlock,\r
136 OUT UINTN *ParameterBlockSize\r
d1f95000 137);\r
138\r
d1f95000 139typedef enum {\r
cce6f7aa 140 ///\r
141 /// The controller specified by ControllerHandle is still\r
630b4187 142 /// in a usable state, and its configuration has been updated\r
cce6f7aa 143 /// via parsing the ParameterBlock. If required by the\r
630b4187 144 /// parameter block, and the module supports an NVRAM store,\r
cce6f7aa 145 /// the configuration information from PB was successfully\r
146 /// saved to the NVRAM. No actions are required before\r
147 /// this controller can be used again with the updated\r
148 /// configuration settings.\r
149 ///\r
d1f95000 150 EfiPlatformConfigurationActionNone = 0,\r
cce6f7aa 151 \r
152 ///\r
153 /// The driver has detected that the controller specified\r
630b4187 154 /// by ControllerHandle is not in a usable state and \r
cce6f7aa 155 /// needs to be stopped. The calling agent can use the\r
156 /// DisconnectControservice to perform this operation, and\r
157 /// it should be performed as soon as possible. \r
158 ///\r
d1f95000 159 EfiPlatformConfigurationActionStopController = 1,\r
cce6f7aa 160 \r
161 ///\r
162 /// This controller specified by ControllerHandle needs to\r
163 /// be stopped and restarted before it can be used again.\r
164 /// The calling agent can use the DisconnectController()\r
165 /// and ConnectController() services to perform this\r
630b4187 166 /// operation. The restart operation can be delayed until\r
167 /// all of the configuration options have been set. \r
cce6f7aa 168 ///\r
d1f95000 169 EfiPlatformConfigurationActionRestartController = 2,\r
cce6f7aa 170 \r
171 ///\r
172 /// A configuration change has been made that requires the\r
173 /// platform to be restarted before the controller\r
174 /// specified by ControllerHandle can be used again. The\r
175 /// calling agent can use the ResetSystem() services to\r
176 /// perform this operation. The restart operation can be\r
177 /// delayed until all of the configuration options have\r
178 /// been set. \r
179 ///\r
d1f95000 180 EfiPlatformConfigurationActionRestartPlatform = 3,\r
cce6f7aa 181\r
182 ///\r
183 /// The controller specified by ControllerHandle is still\r
184 /// in a usable state; its configuration has been updated\r
185 /// via parsing the ParameterBlock. The driver tried to\r
186 /// update the driver's private NVRAM store with\r
187 /// information from ParameterBlock and failed. No actions\r
188 /// are required before this controller can be used again\r
189 /// with the updated configuration settings, but these\r
190 /// configuration settings are not guaranteed to persist\r
191 /// after ControllerHandle is stopped. \r
192 /// \r
d1f95000 193 EfiPlatformConfigurationActionNvramFailed = 4,\r
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194\r
195 ///\r
196 /// The controller specified by ControllerHandle is still\r
197 /// in a usable state; its configuration has not been updated\r
198 /// via parsing the ParameterBlock. The driver did not support\r
199 /// the ParameterBlock format identified by ParameterTypeGuid.\r
200 /// No actions are required before this controller can be used\r
201 /// again. On additional Query calls from this ControllerHandle,\r
202 /// the platform should stop returning a ParameterBlock\r
203 /// qualified by this same ParameterTypeGuid. If no other\r
204 /// ParameterTypeGuid is supported by the platform, Query\r
205 /// should return EFI_NOT_FOUND.\r
206 ///\r
207 EfiPlatformConfigurationActionUnsupportedGuid = 5,\r
d1f95000 208 EfiPlatformConfigurationActionMaximum\r
209} EFI_PLATFORM_CONFIGURATION_ACTION;\r
210\r
211\r
212/**\r
213 The UEFI driver repeatedly calls Query, processes the\r
214 information returned by the platform, and calls Response passing\r
215 in the arguments returned from Query. The UEFI driver must\r
216 continuously call Query until EFI_NOT_FOUND is returned. For\r
217 every call to Query that returns EFI_SUCCESS a corrisponding\r
218 call to Response is required passing in the same\r
219 ContollerHandle, ChildHandle, Instance, ParameterTypeGuid,\r
220 ParameterBlock, and ParameterBlockSize. The UEFI driver may\r
221 update values in ParameterBlock based on rules defined by\r
222 ParameterTypeGuid. The platform is responsible for freeing\r
630b4187 223 ParameterBlock and the UEFI driver must not try to free it.\r
d1f95000 224\r
f754f721 225 @param This A pointer to the EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL instance.\r
d1f95000 226\r
f754f721 227 @param ControllerHandle The handle the driver is returning\r
228 configuration information about.\r
d1f95000 229\r
f754f721 230 @param ChildHandle The handle of the child controller to\r
231 return information on. This is an optional\r
232 parameter that may be NULL. It will be\r
233 NULL for device drivers, and for bus\r
234 drivers that attempt to get options for\r
235 the bus controller. It will not be NULL\r
236 for a bus driver that attempts to get\r
237 options for one of its child controllers.\r
238 Instance Instance data returned from\r
239 Query().\r
d1f95000 240\r
f754f721 241 @param Instance Instance data passed to Query().\r
764f4d53 242\r
f754f721 243 @param ParameterTypeGuid ParameterTypeGuid returned from Query.\r
d1f95000 244\r
f754f721 245 @param ParameterBlock ParameterBlock returned from Query.\r
d1f95000 246\r
f754f721 247 @param ParameterBlockSize The ParameterBlock size returned from Query.\r
d1f95000 248\r
f754f721 249 @param ConfigurationAction The driver tells the platform what\r
250 action is required for ParameterBlock to\r
251 take effect.\r
d1f95000 252 \r
d1f95000 253 \r
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254 @retval EFI_SUCCESS The platform return parameter information\r
255 for ControllerHandle.\r
d1f95000 256 \r
4ca9b6c4 257 @retval EFI_NOT_FOUND Instance was not found.\r
d1f95000 258 \r
18bd7e85 259 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
4ca9b6c4 260 \r
d1f95000 261 @retval EFI_INVALID_PARAMETER Instance is zero.\r
262 \r
263**/\r
264typedef\r
265EFI_STATUS\r
8b13229b 266(EFIAPI *EFI_PLATFORM_TO_DRIVER_CONFIGURATION_RESPONSE)(\r
d1f95000 267 IN CONST EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL *This,\r
268 IN CONST EFI_HANDLE ControllerHandle,\r
269 IN CONST EFI_HANDLE ChildHandle OPTIONAL,\r
270 IN CONST UINTN *Instance,\r
271 IN CONST EFI_GUID *ParameterTypeGuid,\r
272 IN CONST VOID *ParameterBlock,\r
273 IN CONST UINTN ParameterBlockSize ,\r
274 IN CONST EFI_PLATFORM_CONFIGURATION_ACTION ConfigurationAction\r
275);\r
276\r
277\r
44717a39 278///\r
279/// The EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL is used by the\r
280/// UEFI driver to query the platform for configuration information.\r
281/// The UEFI driver calls Query() multiple times to get\r
282/// configuration information from the platform. For every call to\r
283/// Query() there must be a matching call to Response() so the\r
284/// UEFI driver can inform the platform how it used the\r
285/// information passed in from Query(). It's legal for a UEFI\r
286/// driver to use Response() to inform the platform it does not\r
287/// understand the data returned via Query() and thus no action was\r
288/// taken.\r
289///\r
d1f95000 290struct _EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL {\r
291 EFI_PLATFORM_TO_DRIVER_CONFIGURATION_QUERY Query;\r
292 EFI_PLATFORM_TO_DRIVER_CONFIGURATION_RESPONSE Response;\r
293};\r
294\r
295\r
296\r
297#define EFI_PLATFORM_TO_DRIVER_CONFIGURATION_CLP_GUID \\r
298 {0x345ecc0e, 0xcb6, 0x4b75, { 0xbb, 0x57, 0x1b, 0x12, 0x9c, 0x47, 0x33,0x3e } }\r
299\r
300/**\r
301 \r
302 ParameterTypeGuid provides the support for parameters\r
303 communicated through the DMTF SM CLP Specification 1.0 Final\r
304 Standard to be used to configure the UEFI driver. In this\r
305 section the producer of the\r
306 EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL is platform\r
307 firmware and the consumer is the UEFI driver. Note: if future\r
308 versions of the DMTF SM CLP Specification require changes to the\r
630b4187 309 parameter block definition, a newer ParameterTypeGuid will be\r
d1f95000 310 used.\r
d1f95000 311**/\r
312typedef struct {\r
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313 CHAR8 *CLPCommand; ///< A pointer to the null-terminated UTF-8 string that specifies the DMTF SM CLP command\r
314 ///< line that the driver is required to parse and process when this function is called. \r
11f2f87e 315 ///< See the DMTF SM CLP Specification 1.0 Final Standard for details on the \r
316 ///< format and syntax of the CLP command line string. CLPCommand buffer\r
317 ///< is allocated by the producer of the EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOOL.\r
318 UINT32 CLPCommandLength; ///< The length of the CLP Command in bytes.\r
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319 CHAR8 *CLPReturnString; ///< A pointer to the null-terminated UTF-8 string that indicates the CLP return status\r
320 ///< that the driver is required to provide to the calling agent.\r
321 ///< The calling agent may parse and/ or pass\r
11f2f87e 322 ///< this for processing and user feedback. The SM CLP Command Response string\r
323 ///< buffer is filled in by the UEFI driver in the "keyword=value" format\r
324 ///< described in the SM CLP Specification, unless otherwise requested via the SM\r
325 ///< CLP Coutput option in the Command Line string buffer. UEFI driver's support\r
326 ///< for this default "keyword=value" output format is required if the UEFI\r
327 ///< driver supports this protocol, while support for other SM CLP output\r
328 ///< formats is optional (the UEFI Driver should return an EFI_UNSUPPORTED if\r
329 ///< the SM CLP Coutput option requested by the caller is not supported by the\r
330 ///< UEFI Driver). CLPReturnString buffer is allocated by the consumer of the\r
331 ///< EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOC OL and undefined prior to the call to\r
332 ///< Response(). \r
333 UINT32 CLPReturnStringLength; ///< The length of the CLP return status string in bytes.\r
334 UINT8 CLPCmdStatus; ///< SM CLP Command Status (see DMTF SM CLP Specification 1.0 Final Standard -\r
335 ///< Table 4) CLPErrorValue SM CLP Processing Error Value (see DMTF SM\r
336 ///< CLP Specification 1.0 Final Standard - Table 6). This field is filled in by\r
337 ///< the consumer of the EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOC \r
338 ///< OL and undefined prior to the call to Response(). \r
339 UINT8 CLPErrorValue; ///< SM CLP Processing Error Value (see DMTF SM CLP Specification 1.0 Final Standard - Table 6).\r
340 ///< This field is filled in by the consumer of the EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOCOL and undefined prior to the call to Response(). \r
341 UINT16 CLPMsgCode; ///< Bit 15: OEM Message Code Flag 0 = Message Code is an SM CLP Probable\r
342 ///< Cause Value. (see SM CLP Specification Table 11) 1 = Message Code is OEM\r
343 ///< Specific Bits 14-0: Message Code This field is filled in by the consumer of\r
344 ///< the EFI_PLATFORM_TO_DRIVER_CONFIGURATION_PROTOC OL and undefined prior to the call to\r
345 ///< Response(). \r
346\r
d1f95000 347} EFI_CONFIGURE_CLP_PARAMETER_BLK;\r
348\r
349\r
350\r
351extern EFI_GUID gEfiPlatformToDriverConfigurationClpGuid;\r
352\r
353extern EFI_GUID gEfiPlatformToDriverConfigurationProtocolGuid;\r
354\r
355#endif\r