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MdeModulePkg/UfsPassThruDxe: Implement EDKII_UFS_HC_PLATFORM_PROTOCOL
[mirror_edk2.git] / MdeModulePkg / Bus / Ufs / UfsPassThruDxe / UfsPassThru.h
CommitLineData
0591696e
FT		 1/** @file\r
2\r
90952ad7 3 Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>\r
9d510e61 4 SPDX-License-Identifier: BSD-2-Clause-Patent\r
0591696e
FT		 5\r
6**/\r
7\r
8#ifndef _UFS_PASS_THRU_H_\r
9#define _UFS_PASS_THRU_H_\r
10\r
11#include <Uefi.h>\r
12\r
13#include <Protocol/ScsiPassThruExt.h>\r
32c9049d 14#include <Protocol/UfsDeviceConfig.h>\r
0591696e 15#include <Protocol/UfsHostController.h>\r
90952ad7 16#include <Protocol/UfsHostControllerPlatform.h>\r
0591696e
FT		 17\r
18#include <Library/DebugLib.h>\r
19#include <Library/UefiDriverEntryPoint.h>\r
20#include <Library/BaseLib.h>\r
21#include <Library/UefiLib.h>\r
22#include <Library/BaseMemoryLib.h>\r
23#include <Library/MemoryAllocationLib.h>\r
24#include <Library/UefiBootServicesTableLib.h>\r
25#include <Library/DevicePathLib.h>\r
0591696e
FT		 26#include <Library/TimerLib.h>\r
27\r
28#include "UfsPassThruHci.h"\r
29\r
30#define UFS_PASS_THRU_SIG SIGNATURE_32 ('U', 'F', 'S', 'P')\r
31\r
32//\r
d1102dba 33// Lun 0~7 is for 8 common luns.\r
0591696e
FT		 34// Lun 8~11 is for those 4 well known luns (Refer to UFS 2.0 spec Table 10.58 for details):\r
35// Lun 8: REPORT LUNS\r
36// Lun 9: UFS DEVICE\r
37// Lun 10: BOOT\r
38// Lun 11: RPMB\r
39//\r
40#define UFS_MAX_LUNS 12\r
41#define UFS_WLUN_PREFIX 0xC1\r
42\r
43typedef struct {\r
44 UINT8 Lun[UFS_MAX_LUNS];\r
45 UINT16 BitMask:12; // Bit 0~7 is 1/1 mapping to common luns. Bit 8~11 is 1/1 mapping to well-known luns.\r
46 UINT16 Rsvd:4;\r
47} UFS_EXPOSED_LUNS;\r
48\r
0350b57c 49//\r
ed356b9e 50// Iterate through the double linked list. This is delete-safe.\r
0350b57c
HW		 51// Do not touch NextEntry\r
52//\r
53#define EFI_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \\r
54 for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink;\\r
55 Entry != (ListHead); Entry = NextEntry, NextEntry = Entry->ForwardLink)\r
56\r
d1102dba 57typedef struct _UFS_PASS_THRU_PRIVATE_DATA {\r
0591696e
FT		 58 UINT32 Signature;\r
59 EFI_HANDLE Handle;\r
60 EFI_EXT_SCSI_PASS_THRU_MODE ExtScsiPassThruMode;\r
61 EFI_EXT_SCSI_PASS_THRU_PROTOCOL ExtScsiPassThru;\r
32c9049d 62 EFI_UFS_DEVICE_CONFIG_PROTOCOL UfsDevConfig;\r
0591696e
FT		 63 EDKII_UFS_HOST_CONTROLLER_PROTOCOL *UfsHostController;\r
64 UINTN UfsHcBase;\r
a71272ed 65 EDKII_UFS_HC_INFO UfsHcInfo;\r
ecc32c90 66 EDKII_UFS_HC_DRIVER_INTERFACE UfsHcDriverInterface;\r
0591696e
FT		 67\r
68 UINT8 TaskTag;\r
69\r
70 VOID *UtpTrlBase;\r
71 UINT8 Nutrs;\r
72 VOID *TrlMapping;\r
73 VOID *UtpTmrlBase;\r
74 UINT8 Nutmrs;\r
75 VOID *TmrlMapping;\r
76\r
77 UFS_EXPOSED_LUNS Luns;\r
0350b57c
HW		 78\r
79 //\r
80 // For Non-blocking operation.\r
81 //\r
82 EFI_EVENT TimerEvent;\r
83 LIST_ENTRY Queue;\r
0591696e
FT		 84} UFS_PASS_THRU_PRIVATE_DATA;\r
85\r
0350b57c
HW		 86#define UFS_PASS_THRU_TRANS_REQ_SIG SIGNATURE_32 ('U', 'F', 'S', 'T')\r
87\r
88typedef struct {\r
89 UINT32 Signature;\r
90 LIST_ENTRY TransferList;\r
91\r
92 UINT8 Slot;\r
93 UTP_TRD *Trd;\r
94 UINT32 CmdDescSize;\r
95 VOID *CmdDescHost;\r
96 VOID *CmdDescMapping;\r
a37e18f6
AM		 97 VOID *AlignedDataBuf;\r
98 UINTN AlignedDataBufSize;\r
0350b57c
HW		 99 VOID *DataBufMapping;\r
100\r
101 EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet;\r
102 UINT64 TimeoutRemain;\r
103 EFI_EVENT CallerEvent;\r
104} UFS_PASS_THRU_TRANS_REQ;\r
105\r
106#define UFS_PASS_THRU_TRANS_REQ_FROM_THIS(a) \\r
107 CR(a, UFS_PASS_THRU_TRANS_REQ, TransferList, UFS_PASS_THRU_TRANS_REQ_SIG)\r
108\r
0591696e 109#define UFS_TIMEOUT EFI_TIMER_PERIOD_SECONDS(3)\r
0350b57c 110#define UFS_HC_ASYNC_TIMER EFI_TIMER_PERIOD_MILLISECONDS(1)\r
0591696e
FT		 111\r
112#define ROUNDUP8(x) (((x) % 8 == 0) ? (x) : ((x) / 8 + 1) * 8)\r
113\r
114#define IS_ALIGNED(addr, size) (((UINTN) (addr) & (size - 1)) == 0)\r
115\r
116#define UFS_PASS_THRU_PRIVATE_DATA_FROM_THIS(a) \\r
117 CR (a, \\r
118 UFS_PASS_THRU_PRIVATE_DATA, \\r
119 ExtScsiPassThru, \\r
120 UFS_PASS_THRU_SIG \\r
121 )\r
122\r
32c9049d
HW		 123#define UFS_PASS_THRU_PRIVATE_DATA_FROM_DEV_CONFIG(a) \\r
124 CR (a, \\r
125 UFS_PASS_THRU_PRIVATE_DATA, \\r
126 UfsDevConfig, \\r
127 UFS_PASS_THRU_SIG \\r
128 )\r
129\r
ecc32c90
AM		 130#define UFS_PASS_THRU_PRIVATE_DATA_FROM_DRIVER_INTF(a) \\r
131 CR (a, \\r
132 UFS_PASS_THRU_PRIVATE_DATA, \\r
133 UfsHcDriverInterface, \\r
134 UFS_PASS_THRU_SIG \\r
135 )\r
136\r
0591696e
FT		 137typedef struct _UFS_DEVICE_MANAGEMENT_REQUEST_PACKET {\r
138 UINT64 Timeout;\r
95ad8f7f 139 VOID *DataBuffer;\r
0591696e
FT		 140 UINT8 Opcode;\r
141 UINT8 DescId;\r
142 UINT8 Index;\r
143 UINT8 Selector;\r
95ad8f7f 144 UINT32 TransferLength;\r
0591696e 145 UINT8 DataDirection;\r
0591696e
FT		 146} UFS_DEVICE_MANAGEMENT_REQUEST_PACKET;\r
147\r
148//\r
149// function prototype\r
150//\r
151/**\r
152 Tests to see if this driver supports a given controller. If a child device is provided,\r
153 it further tests to see if this driver supports creating a handle for the specified child device.\r
154\r
155 This function checks to see if the driver specified by This supports the device specified by\r
156 ControllerHandle. Drivers will typically use the device path attached to\r
157 ControllerHandle and/or the services from the bus I/O abstraction attached to\r
158 ControllerHandle to determine if the driver supports ControllerHandle. This function\r
159 may be called many times during platform initialization. In order to reduce boot times, the tests\r
160 performed by this function must be very small, and take as little time as possible to execute. This\r
161 function must not change the state of any hardware devices, and this function must be aware that the\r
162 device specified by ControllerHandle may already be managed by the same driver or a\r
163 different driver. This function must match its calls to AllocatePages() with FreePages(),\r
164 AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().\r
165 Since ControllerHandle may have been previously started by the same driver, if a protocol is\r
166 already in the opened state, then it must not be closed with CloseProtocol(). This is required\r
167 to guarantee the state of ControllerHandle is not modified by this function.\r
168\r
169 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
170 @param[in] ControllerHandle The handle of the controller to test. This handle\r
171 must support a protocol interface that supplies\r
172 an I/O abstraction to the driver.\r
173 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
174 parameter is ignored by device drivers, and is optional for bus\r
175 drivers. For bus drivers, if this parameter is not NULL, then\r
176 the bus driver must determine if the bus controller specified\r
177 by ControllerHandle and the child controller specified\r
178 by RemainingDevicePath are both supported by this\r
179 bus driver.\r
180\r
181 @retval EFI_SUCCESS The device specified by ControllerHandle and\r
182 RemainingDevicePath is supported by the driver specified by This.\r
183 @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and\r
184 RemainingDevicePath is already being managed by the driver\r
185 specified by This.\r
186 @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and\r
187 RemainingDevicePath is already being managed by a different\r
188 driver or an application that requires exclusive access.\r
189 Currently not implemented.\r
190 @retval EFI_UNSUPPORTED The device specified by ControllerHandle and\r
191 RemainingDevicePath is not supported by the driver specified by This.\r
192**/\r
193EFI_STATUS\r
194EFIAPI\r
195UfsPassThruDriverBindingSupported (\r
196 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
197 IN EFI_HANDLE Controller,\r
198 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
199 );\r
200\r
201/**\r
202 Starts a device controller or a bus controller.\r
203\r
204 The Start() function is designed to be invoked from the EFI boot service ConnectController().\r
205 As a result, much of the error checking on the parameters to Start() has been moved into this\r
206 common boot service. It is legal to call Start() from other locations,\r
207 but the following calling restrictions must be followed or the system behavior will not be deterministic.\r
208 1. ControllerHandle must be a valid EFI_HANDLE.\r
209 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned\r
210 EFI_DEVICE_PATH_PROTOCOL.\r
211 3. Prior to calling Start(), the Supported() function for the driver specified by This must\r
212 have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.\r
213\r
214 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
215 @param[in] ControllerHandle The handle of the controller to start. This handle\r
216 must support a protocol interface that supplies\r
217 an I/O abstraction to the driver.\r
218 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This\r
219 parameter is ignored by device drivers, and is optional for bus\r
220 drivers. For a bus driver, if this parameter is NULL, then handles\r
221 for all the children of Controller are created by this driver.\r
222 If this parameter is not NULL and the first Device Path Node is\r
223 not the End of Device Path Node, then only the handle for the\r
224 child device specified by the first Device Path Node of\r
225 RemainingDevicePath is created by this driver.\r
226 If the first Device Path Node of RemainingDevicePath is\r
227 the End of Device Path Node, no child handle is created by this\r
228 driver.\r
229\r
230 @retval EFI_SUCCESS The device was started.\r
231 @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.\r
232 @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
233 @retval Others The driver failded to start the device.\r
234\r
235**/\r
236EFI_STATUS\r
237EFIAPI\r
238UfsPassThruDriverBindingStart (\r
239 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
240 IN EFI_HANDLE Controller,\r
241 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
242 );\r
243\r
244/**\r
245 Stops a device controller or a bus controller.\r
246\r
247 The Stop() function is designed to be invoked from the EFI boot service DisconnectController().\r
248 As a result, much of the error checking on the parameters to Stop() has been moved\r
249 into this common boot service. It is legal to call Stop() from other locations,\r
250 but the following calling restrictions must be followed or the system behavior will not be deterministic.\r
251 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this\r
252 same driver's Start() function.\r
253 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid\r
254 EFI_HANDLE. In addition, all of these handles must have been created in this driver's\r
255 Start() function, and the Start() function must have called OpenProtocol() on\r
256 ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r
257\r
258 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
259 @param[in] ControllerHandle A handle to the device being stopped. The handle must\r
260 support a bus specific I/O protocol for the driver\r
261 to use to stop the device.\r
262 @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
263 @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
264 if NumberOfChildren is 0.\r
265\r
266 @retval EFI_SUCCESS The device was stopped.\r
267 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
268\r
269**/\r
270EFI_STATUS\r
271EFIAPI\r
272UfsPassThruDriverBindingStop (\r
273 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
274 IN EFI_HANDLE Controller,\r
275 IN UINTN NumberOfChildren,\r
276 IN EFI_HANDLE *ChildHandleBuffer\r
277 );\r
278\r
279//\r
280// EFI Component Name Functions\r
281//\r
282/**\r
283 Retrieves a Unicode string that is the user readable name of the driver.\r
284\r
285 This function retrieves the user readable name of a driver in the form of a\r
286 Unicode string. If the driver specified by This has a user readable name in\r
287 the language specified by Language, then a pointer to the driver name is\r
288 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified\r
289 by This does not support the language specified by Language,\r
290 then EFI_UNSUPPORTED is returned.\r
291\r
292 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or\r
293 EFI_COMPONENT_NAME_PROTOCOL instance.\r
294\r
295 @param Language[in] A pointer to a Null-terminated ASCII string\r
296 array indicating the language. This is the\r
297 language of the driver name that the caller is\r
298 requesting, and it must match one of the\r
299 languages specified in SupportedLanguages. The\r
300 number of languages supported by a driver is up\r
301 to the driver writer. Language is specified\r
302 in RFC 4646 or ISO 639-2 language code format.\r
303\r
304 @param DriverName[out] A pointer to the Unicode string to return.\r
305 This Unicode string is the name of the\r
306 driver specified by This in the language\r
307 specified by Language.\r
308\r
309 @retval EFI_SUCCESS The Unicode string for the Driver specified by\r
310 This and the language specified by Language was\r
311 returned in DriverName.\r
312\r
313 @retval EFI_INVALID_PARAMETER Language is NULL.\r
314\r
315 @retval EFI_INVALID_PARAMETER DriverName is NULL.\r
316\r
317 @retval EFI_UNSUPPORTED The driver specified by This does not support\r
318 the language specified by Language.\r
319\r
320**/\r
321EFI_STATUS\r
322EFIAPI\r
323UfsPassThruComponentNameGetDriverName (\r
324 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
325 IN CHAR8 *Language,\r
326 OUT CHAR16 **DriverName\r
327 );\r
328\r
329\r
330/**\r
331 Retrieves a Unicode string that is the user readable name of the controller\r
332 that is being managed by a driver.\r
333\r
334 This function retrieves the user readable name of the controller specified by\r
335 ControllerHandle and ChildHandle in the form of a Unicode string. If the\r
336 driver specified by This has a user readable name in the language specified by\r
337 Language, then a pointer to the controller name is returned in ControllerName,\r
338 and EFI_SUCCESS is returned. If the driver specified by This is not currently\r
339 managing the controller specified by ControllerHandle and ChildHandle,\r
340 then EFI_UNSUPPORTED is returned. If the driver specified by This does not\r
341 support the language specified by Language, then EFI_UNSUPPORTED is returned.\r
342\r
343 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or\r
344 EFI_COMPONENT_NAME_PROTOCOL instance.\r
345\r
346 @param ControllerHandle[in] The handle of a controller that the driver\r
347 specified by This is managing. This handle\r
348 specifies the controller whose name is to be\r
349 returned.\r
350\r
351 @param ChildHandle[in] The handle of the child controller to retrieve\r
352 the name of. This is an optional parameter that\r
353 may be NULL. It will be NULL for device\r
354 drivers. It will also be NULL for a bus drivers\r
355 that wish to retrieve the name of the bus\r
356 controller. It will not be NULL for a bus\r
357 driver that wishes to retrieve the name of a\r
358 child controller.\r
359\r
360 @param Language[in] A pointer to a Null-terminated ASCII string\r
361 array indicating the language. This is the\r
362 language of the driver name that the caller is\r
363 requesting, and it must match one of the\r
364 languages specified in SupportedLanguages. The\r
365 number of languages supported by a driver is up\r
366 to the driver writer. Language is specified in\r
367 RFC 4646 or ISO 639-2 language code format.\r
368\r
369 @param ControllerName[out] A pointer to the Unicode string to return.\r
370 This Unicode string is the name of the\r
371 controller specified by ControllerHandle and\r
372 ChildHandle in the language specified by\r
373 Language from the point of view of the driver\r
374 specified by This.\r
375\r
376 @retval EFI_SUCCESS The Unicode string for the user readable name in\r
377 the language specified by Language for the\r
378 driver specified by This was returned in\r
379 DriverName.\r
380\r
381 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.\r
382\r
383 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid\r
384 EFI_HANDLE.\r
385\r
386 @retval EFI_INVALID_PARAMETER Language is NULL.\r
387\r
388 @retval EFI_INVALID_PARAMETER ControllerName is NULL.\r
389\r
390 @retval EFI_UNSUPPORTED The driver specified by This is not currently\r
391 managing the controller specified by\r
392 ControllerHandle and ChildHandle.\r
393\r
394 @retval EFI_UNSUPPORTED The driver specified by This does not support\r
395 the language specified by Language.\r
396\r
397**/\r
398EFI_STATUS\r
399EFIAPI\r
400UfsPassThruComponentNameGetControllerName (\r
401 IN EFI_COMPONENT_NAME_PROTOCOL *This,\r
402 IN EFI_HANDLE ControllerHandle,\r
403 IN EFI_HANDLE ChildHandle OPTIONAL,\r
404 IN CHAR8 *Language,\r
405 OUT CHAR16 **ControllerName\r
406 );\r
407\r
408/**\r
409 Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function\r
410 supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the\r
411 nonblocking I/O functionality is optional.\r
412\r
413 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
414 @param Target The Target is an array of size TARGET_MAX_BYTES and it represents\r
415 the id of the SCSI device to send the SCSI Request Packet. Each\r
416 transport driver may choose to utilize a subset of this size to suit the needs\r
417 of transport target representation. For example, a Fibre Channel driver\r
418 may use only 8 bytes (WWN) to represent an FC target.\r
419 @param Lun The LUN of the SCSI device to send the SCSI Request Packet.\r
420 @param Packet A pointer to the SCSI Request Packet to send to the SCSI device\r
421 specified by Target and Lun.\r
422 @param Event If nonblocking I/O is not supported then Event is ignored, and blocking\r
423 I/O is performed. If Event is NULL, then blocking I/O is performed. If\r
424 Event is not NULL and non blocking I/O is supported, then\r
425 nonblocking I/O is performed, and Event will be signaled when the\r
426 SCSI Request Packet completes.\r
427\r
428 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional\r
429 commands, InTransferLength bytes were transferred from\r
430 InDataBuffer. For write and bi-directional commands,\r
431 OutTransferLength bytes were transferred by\r
432 OutDataBuffer.\r
433 @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that\r
434 could be transferred is returned in InTransferLength. For write\r
435 and bi-directional commands, OutTransferLength bytes were\r
436 transferred by OutDataBuffer.\r
437 @retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many\r
438 SCSI Request Packets already queued. The caller may retry again later.\r
439 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request\r
440 Packet.\r
441 @retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid.\r
442 @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported\r
443 by the host adapter. This includes the case of Bi-directional SCSI\r
444 commands not supported by the implementation. The SCSI Request\r
445 Packet was not sent, so no additional status information is available.\r
446 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.\r
447\r
448**/\r
449EFI_STATUS\r
450EFIAPI\r
451UfsPassThruPassThru (\r
452 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
453 IN UINT8 *Target,\r
454 IN UINT64 Lun,\r
455 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,\r
456 IN EFI_EVENT Event OPTIONAL\r
457 );\r
458\r
459/**\r
460 Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These\r
461 can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal\r
462 Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the\r
463 Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI\r
464 channel.\r
465\r
466 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
467 @param Target On input, a pointer to the Target ID (an array of size\r
468 TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.\r
469 On output, a pointer to the Target ID (an array of\r
470 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI\r
471 channel. An input value of 0xF(all bytes in the array are 0xF) in the\r
472 Target array retrieves the Target ID of the first SCSI device present on a\r
473 SCSI channel.\r
474 @param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI\r
475 channel. On output, a pointer to the LUN of the next SCSI device present\r
476 on a SCSI channel.\r
477\r
478 @retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI\r
479 channel was returned in Target and Lun.\r
480 @retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were\r
481 not returned on a previous call to GetNextTargetLun().\r
482 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.\r
483\r
484**/\r
485EFI_STATUS\r
486EFIAPI\r
487UfsPassThruGetNextTargetLun (\r
488 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
489 IN OUT UINT8 **Target,\r
490 IN OUT UINT64 *Lun\r
491 );\r
492\r
493/**\r
494 Used to allocate and build a device path node for a SCSI device on a SCSI channel.\r
495\r
496 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
497 @param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the\r
498 Target ID of the SCSI device for which a device path node is to be\r
499 allocated and built. Transport drivers may chose to utilize a subset of\r
500 this size to suit the representation of targets. For example, a Fibre\r
501 Channel driver may use only 8 bytes (WWN) in the array to represent a\r
502 FC target.\r
503 @param Lun The LUN of the SCSI device for which a device path node is to be\r
504 allocated and built.\r
505 @param DevicePath A pointer to a single device path node that describes the SCSI device\r
506 specified by Target and Lun. This function is responsible for\r
507 allocating the buffer DevicePath with the boot service\r
508 AllocatePool(). It is the caller's responsibility to free\r
509 DevicePath when the caller is finished with DevicePath.\r
510\r
511 @retval EFI_SUCCESS The device path node that describes the SCSI device specified by\r
512 Target and Lun was allocated and returned in\r
513 DevicePath.\r
514 @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
515 @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist\r
516 on the SCSI channel.\r
517 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.\r
518\r
519**/\r
520EFI_STATUS\r
521EFIAPI\r
522UfsPassThruBuildDevicePath (\r
523 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
524 IN UINT8 *Target,\r
525 IN UINT64 Lun,\r
526 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
527 );\r
528\r
529/**\r
530 Used to translate a device path node to a Target ID and LUN.\r
531\r
532 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
533 @param DevicePath A pointer to a single device path node that describes the SCSI device\r
534 on the SCSI channel.\r
535 @param Target A pointer to the Target Array which represents the ID of a SCSI device\r
536 on the SCSI channel.\r
537 @param Lun A pointer to the LUN of a SCSI device on the SCSI channel.\r
538\r
539 @retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and\r
540 LUN, and they were returned in Target and Lun.\r
541 @retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL.\r
542 @retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN\r
543 does not exist.\r
544 @retval EFI_UNSUPPORTED This driver does not support the device path node type in\r
545 DevicePath.\r
546\r
547**/\r
548EFI_STATUS\r
549EFIAPI\r
550UfsPassThruGetTargetLun (\r
551 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
552 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
553 OUT UINT8 **Target,\r
554 OUT UINT64 *Lun\r
555 );\r
556\r
557/**\r
558 Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel.\r
559\r
560 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
561\r
562 @retval EFI_SUCCESS The SCSI channel was reset.\r
563 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel.\r
564 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel.\r
565 @retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation.\r
566\r
567**/\r
568EFI_STATUS\r
569EFIAPI\r
570UfsPassThruResetChannel (\r
571 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This\r
572 );\r
573\r
574/**\r
575 Resets a SCSI logical unit that is connected to a SCSI channel.\r
576\r
577 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
578 @param Target The Target is an array of size TARGET_MAX_BYTE and it represents the\r
579 target port ID of the SCSI device containing the SCSI logical unit to\r
580 reset. Transport drivers may chose to utilize a subset of this array to suit\r
581 the representation of their targets.\r
582 @param Lun The LUN of the SCSI device to reset.\r
583\r
584 @retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset.\r
585 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.\r
586 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device\r
587 specified by Target and Lun.\r
588 @retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation.\r
589 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device\r
590 specified by Target and Lun.\r
591\r
592**/\r
593EFI_STATUS\r
594EFIAPI\r
595UfsPassThruResetTargetLun (\r
596 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
597 IN UINT8 *Target,\r
598 IN UINT64 Lun\r
599 );\r
600\r
601/**\r
602 Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either\r
603 be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs\r
604 for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to\r
605 see if a SCSI device is actually present at that location on the SCSI channel.\r
606\r
607 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.\r
608 @param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.\r
609 On output, a pointer to the Target ID (an array of\r
610 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI\r
611 channel. An input value of 0xF(all bytes in the array are 0xF) in the\r
612 Target array retrieves the Target ID of the first SCSI device present on a\r
613 SCSI channel.\r
614\r
615 @retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI\r
616 channel was returned in Target.\r
617 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.\r
618 @retval EFI_TIMEOUT Target array is not all 0xF, and Target was not\r
619 returned on a previous call to GetNextTarget().\r
620 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.\r
621\r
622**/\r
623EFI_STATUS\r
624EFIAPI\r
625UfsPassThruGetNextTarget (\r
626 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
627 IN OUT UINT8 **Target\r
628 );\r
629\r
630/**\r
631 Sends a UFS-supported SCSI Request Packet to a UFS device that is attached to the UFS host controller.\r
632\r
633 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
634 @param[in] Lun The LUN of the UFS device to send the SCSI Request Packet.\r
635 @param[in, out] Packet A pointer to the SCSI Request Packet to send to a specified Lun of the\r
636 UFS device.\r
0350b57c
HW		 637 @param[in] Event If nonblocking I/O is not supported then Event is ignored, and blocking\r
638 I/O is performed. If Event is NULL, then blocking I/O is performed. If\r
639 Event is not NULL and non blocking I/O is supported, then\r
640 nonblocking I/O is performed, and Event will be signaled when the\r
641 SCSI Request Packet completes.\r
0591696e
FT		 642\r
643 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional\r
644 commands, InTransferLength bytes were transferred from\r
645 InDataBuffer. For write and bi-directional commands,\r
646 OutTransferLength bytes were transferred by\r
647 OutDataBuffer.\r
648 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request\r
649 Packet.\r
650 @retval EFI_OUT_OF_RESOURCES The resource for transfer is not available.\r
651 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.\r
652\r
653**/\r
654EFI_STATUS\r
655UfsExecScsiCmds (\r
656 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
657 IN UINT8 Lun,\r
0350b57c
HW		 658 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,\r
659 IN EFI_EVENT Event OPTIONAL\r
0591696e
FT		 660 );\r
661\r
662/**\r
663 Initialize the UFS host controller.\r
664\r
665 @param[in] Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure.\r
666\r
667 @retval EFI_SUCCESS The NVM Express Controller is initialized successfully.\r
668 @retval Others A device error occurred while initializing the controller.\r
669\r
670**/\r
671EFI_STATUS\r
672UfsControllerInit (\r
673 IN UFS_PASS_THRU_PRIVATE_DATA *Private\r
674 );\r
675\r
676/**\r
677 Stop the UFS host controller.\r
678\r
679 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
680\r
681 @retval EFI_SUCCESS The Ufs Host Controller is stopped successfully.\r
682 @retval Others A device error occurred while stopping the controller.\r
683\r
684**/\r
685EFI_STATUS\r
686UfsControllerStop (\r
687 IN UFS_PASS_THRU_PRIVATE_DATA *Private\r
688 );\r
689\r
690/**\r
691 Allocate common buffer for host and UFS bus master access simultaneously.\r
692\r
693 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
694 @param[in] Size The length of buffer to be allocated.\r
695 @param[out] CmdDescHost A pointer to store the base system memory address of the allocated range.\r
696 @param[out] CmdDescPhyAddr The resulting map address for the UFS bus master to use to access the hosts CmdDescHost.\r
697 @param[out] CmdDescMapping A resulting value to pass to Unmap().\r
698\r
699 @retval EFI_SUCCESS The common buffer was allocated successfully.\r
700 @retval EFI_DEVICE_ERROR The allocation fails.\r
701 @retval EFI_OUT_OF_RESOURCES The memory resource is insufficient.\r
702\r
703**/\r
704EFI_STATUS\r
705UfsAllocateAlignCommonBuffer (\r
706 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
707 IN UINTN Size,\r
708 OUT VOID **CmdDescHost,\r
709 OUT EFI_PHYSICAL_ADDRESS *CmdDescPhyAddr,\r
710 OUT VOID **CmdDescMapping\r
711 );\r
712\r
713/**\r
714 Set specified flag to 1 on a UFS device.\r
715\r
716 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
717 @param[in] FlagId The ID of flag to be set.\r
718\r
719 @retval EFI_SUCCESS The flag was set successfully.\r
720 @retval EFI_DEVICE_ERROR A device error occurred while attempting to set the flag.\r
721 @retval EFI_TIMEOUT A timeout occurred while waiting for the completion of setting the flag.\r
722\r
723**/\r
724EFI_STATUS\r
725UfsSetFlag (\r
726 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
727 IN UINT8 FlagId\r
728 );\r
729\r
95ad8f7f
HW		 730/**\r
731 Read specified flag from a UFS device.\r
732\r
733 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
734 @param[in] FlagId The ID of flag to be read.\r
735 @param[out] Value The flag's value.\r
736\r
737 @retval EFI_SUCCESS The flag was read successfully.\r
738 @retval EFI_DEVICE_ERROR A device error occurred while attempting to read the flag.\r
739 @retval EFI_TIMEOUT A timeout occurred while waiting for the completion of reading the flag.\r
740\r
741**/\r
742EFI_STATUS\r
743UfsReadFlag (\r
744 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
745 IN UINT8 FlagId,\r
746 OUT UINT8 *Value\r
747 );\r
748\r
32c9049d
HW		 749/**\r
750 Read or write specified flag of a UFS device.\r
751\r
752 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
753 @param[in] Read The boolean variable to show r/w direction.\r
754 @param[in] FlagId The ID of flag to be read or written.\r
755 @param[in, out] Value The value to set or clear flag.\r
756\r
757 @retval EFI_SUCCESS The flag was read/written successfully.\r
758 @retval EFI_DEVICE_ERROR A device error occurred while attempting to r/w the flag.\r
759 @retval EFI_TIMEOUT A timeout occurred while waiting for the completion of r/w the flag.\r
760\r
761**/\r
762EFI_STATUS\r
763UfsRwFlags (\r
764 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
765 IN BOOLEAN Read,\r
766 IN UINT8 FlagId,\r
767 IN OUT UINT8 *Value\r
768 );\r
769\r
0591696e
FT		 770/**\r
771 Read or write specified device descriptor of a UFS device.\r
772\r
773 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
774 @param[in] Read The boolean variable to show r/w direction.\r
775 @param[in] DescId The ID of device descriptor.\r
776 @param[in] Index The Index of device descriptor.\r
777 @param[in] Selector The Selector of device descriptor.\r
778 @param[in, out] Descriptor The buffer of device descriptor to be read or written.\r
32c9049d
HW		 779 @param[in, out] DescSize The size of device descriptor buffer. On input, the size, in bytes,\r
780 of the data buffer specified by Descriptor. On output, the number\r
781 of bytes that were actually transferred.\r
0591696e
FT		 782\r
783 @retval EFI_SUCCESS The device descriptor was read/written successfully.\r
784 @retval EFI_DEVICE_ERROR A device error occurred while attempting to r/w the device descriptor.\r
785 @retval EFI_TIMEOUT A timeout occurred while waiting for the completion of r/w the device descriptor.\r
786\r
787**/\r
788EFI_STATUS\r
789UfsRwDeviceDesc (\r
790 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
791 IN BOOLEAN Read,\r
792 IN UINT8 DescId,\r
793 IN UINT8 Index,\r
794 IN UINT8 Selector,\r
795 IN OUT VOID *Descriptor,\r
32c9049d 796 IN OUT UINT32 *DescSize\r
0591696e
FT		 797 );\r
798\r
95ad8f7f
HW		 799/**\r
800 Read or write specified attribute of a UFS device.\r
801\r
802 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
803 @param[in] Read The boolean variable to show r/w direction.\r
804 @param[in] AttrId The ID of Attribute.\r
805 @param[in] Index The Index of Attribute.\r
806 @param[in] Selector The Selector of Attribute.\r
807 @param[in, out] Attributes The value of Attribute to be read or written.\r
808\r
809 @retval EFI_SUCCESS The Attribute was read/written successfully.\r
810 @retval EFI_DEVICE_ERROR A device error occurred while attempting to r/w the Attribute.\r
811 @retval EFI_TIMEOUT A timeout occurred while waiting for the completion of r/w the Attribute.\r
812\r
813**/\r
814EFI_STATUS\r
815UfsRwAttributes (\r
816 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
817 IN BOOLEAN Read,\r
818 IN UINT8 AttrId,\r
819 IN UINT8 Index,\r
820 IN UINT8 Selector,\r
821 IN OUT UINT32 *Attributes\r
822 );\r
823\r
0591696e
FT		 824/**\r
825 Sends NOP IN cmd to a UFS device for initialization process request.\r
826 For more details, please refer to UFS 2.0 spec Figure 13.3.\r
827\r
828 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.\r
829\r
830 @retval EFI_SUCCESS The NOP IN command was sent by the host. The NOP OUT response was\r
831 received successfully.\r
832 @retval EFI_DEVICE_ERROR A device error occurred while attempting to execute NOP IN command.\r
833 @retval EFI_OUT_OF_RESOURCES The resource for transfer is not available.\r
834 @retval EFI_TIMEOUT A timeout occurred while waiting for the NOP IN command to execute.\r
835\r
836**/\r
837EFI_STATUS\r
838UfsExecNopCmds (\r
839 IN UFS_PASS_THRU_PRIVATE_DATA *Private\r
840 );\r
841\r
0350b57c
HW		 842/**\r
843 Call back function when the timer event is signaled.\r
844\r
845 @param[in] Event The Event this notify function registered to.\r
846 @param[in] Context Pointer to the context data registered to the Event.\r
847\r
848**/\r
849VOID\r
850EFIAPI\r
851ProcessAsyncTaskList (\r
852 IN EFI_EVENT Event,\r
853 IN VOID *Context\r
854 );\r
855\r
856/**\r
857 Internal helper function which will signal the caller event and clean up\r
858 resources.\r
859\r
860 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data\r
861 structure.\r
862 @param[in] TransReq The pointer to the UFS_PASS_THRU_TRANS_REQ data\r
863 structure.\r
864\r
865**/\r
866VOID\r
867EFIAPI\r
868SignalCallerEvent (\r
869 IN UFS_PASS_THRU_PRIVATE_DATA *Private,\r
870 IN UFS_PASS_THRU_TRANS_REQ *TransReq\r
871 );\r
872\r
32c9049d
HW		 873/**\r
874 Read or write specified device descriptor of a UFS device.\r
875\r
876 The function is used to read/write UFS device descriptors. The consumer of this API is\r
877 responsible for allocating the data buffer pointed by Descriptor.\r
878\r
879 @param[in] This The pointer to the EFI_UFS_DEVICE_CONFIG_PROTOCOL instance.\r
880 @param[in] Read The boolean variable to show r/w direction.\r
881 @param[in] DescId The ID of device descriptor.\r
882 @param[in] Index The Index of device descriptor.\r
883 @param[in] Selector The Selector of device descriptor.\r
884 @param[in, out] Descriptor The buffer of device descriptor to be read or written.\r
885 @param[in, out] DescSize The size of device descriptor buffer. On input, the size, in bytes,\r
886 of the data buffer specified by Descriptor. On output, the number\r
887 of bytes that were actually transferred.\r
888\r
889 @retval EFI_SUCCESS The device descriptor is read/written successfully.\r
890 @retval EFI_INVALID_PARAMETER This is NULL or Descriptor is NULL or DescSize is NULL.\r
891 DescId, Index and Selector are invalid combination to point to a\r
892 type of UFS device descriptor.\r
893 @retval EFI_DEVICE_ERROR The device descriptor is not read/written successfully.\r
894\r
895**/\r
896EFI_STATUS\r
897EFIAPI\r
898UfsRwUfsDescriptor (\r
899 IN EFI_UFS_DEVICE_CONFIG_PROTOCOL *This,\r
900 IN BOOLEAN Read,\r
901 IN UINT8 DescId,\r
902 IN UINT8 Index,\r
903 IN UINT8 Selector,\r
904 IN OUT UINT8 *Descriptor,\r
905 IN OUT UINT32 *DescSize\r
906 );\r
907\r
908/**\r
909 Read or write specified flag of a UFS device.\r
910\r
911 The function is used to read/write UFS flag descriptors. The consumer of this API is responsible\r
912 for allocating the buffer pointed by Flag. The buffer size is 1 byte as UFS flag descriptor is\r
913 just a single Boolean value that represents a TRUE or FALSE, '0' or '1', ON or OFF type of value.\r
914\r
915 @param[in] This The pointer to the EFI_UFS_DEVICE_CONFIG_PROTOCOL instance.\r
916 @param[in] Read The boolean variable to show r/w direction.\r
917 @param[in] FlagId The ID of flag to be read or written.\r
918 @param[in, out] Flag The buffer to set or clear flag.\r
919\r
920 @retval EFI_SUCCESS The flag descriptor is set/clear successfully.\r
921 @retval EFI_INVALID_PARAMETER This is NULL or Flag is NULL.\r
922 FlagId is an invalid UFS flag ID.\r
923 @retval EFI_DEVICE_ERROR The flag is not set/clear successfully.\r
924\r
925**/\r
926EFI_STATUS\r
927EFIAPI\r
928UfsRwUfsFlag (\r
929 IN EFI_UFS_DEVICE_CONFIG_PROTOCOL *This,\r
930 IN BOOLEAN Read,\r
931 IN UINT8 FlagId,\r
932 IN OUT UINT8 *Flag\r
933 );\r
934\r
935/**\r
936 Read or write specified attribute of a UFS device.\r
937\r
938 The function is used to read/write UFS attributes. The consumer of this API is responsible for\r
939 allocating the data buffer pointed by Attribute.\r
940\r
941 @param[in] This The pointer to the EFI_UFS_DEVICE_CONFIG_PROTOCOL instance.\r
942 @param[in] Read The boolean variable to show r/w direction.\r
943 @param[in] AttrId The ID of Attribute.\r
944 @param[in] Index The Index of Attribute.\r
945 @param[in] Selector The Selector of Attribute.\r
946 @param[in, out] Attribute The buffer of Attribute to be read or written.\r
947 @param[in, out] AttrSize The size of Attribute buffer. On input, the size, in bytes, of the\r
948 data buffer specified by Attribute. On output, the number of bytes\r
949 that were actually transferred.\r
950\r
951 @retval EFI_SUCCESS The attribute is read/written successfully.\r
952 @retval EFI_INVALID_PARAMETER This is NULL or Attribute is NULL or AttrSize is NULL.\r
953 AttrId, Index and Selector are invalid combination to point to a\r
954 type of UFS attribute.\r
955 @retval EFI_DEVICE_ERROR The attribute is not read/written successfully.\r
956\r
957**/\r
958EFI_STATUS\r
959EFIAPI\r
960UfsRwUfsAttribute (\r
961 IN EFI_UFS_DEVICE_CONFIG_PROTOCOL *This,\r
962 IN BOOLEAN Read,\r
963 IN UINT8 AttrId,\r
964 IN UINT8 Index,\r
965 IN UINT8 Selector,\r
966 IN OUT UINT8 *Attribute,\r
967 IN OUT UINT32 *AttrSize\r
968 );\r
969\r
ecc32c90
AM		 970/**\r
971 Execute UIC command.\r
972\r
973 @param[in] This Pointer to driver interface produced by the UFS controller.\r
974 @param[in, out] UicCommand Descriptor of the command that will be executed.\r
975\r
976 @retval EFI_SUCCESS Command executed successfully.\r
977 @retval EFI_INVALID_PARAMETER This or UicCommand is NULL.\r
978 @retval Others Command failed to execute.\r
979**/\r
980EFI_STATUS\r
981EFIAPI\r
982UfsHcDriverInterfaceExecUicCommand (\r
983 IN EDKII_UFS_HC_DRIVER_INTERFACE *This,\r
984 IN OUT EDKII_UIC_COMMAND *UicCommand\r
985 );\r
986\r
a71272ed
AM		 987/**\r
988 Initializes UfsHcInfo field in private data.\r
989\r
990 @param[in] Private Pointer to host controller private data.\r
991\r
992 @retval EFI_SUCCESS UfsHcInfo initialized successfully.\r
993 @retval Others Failed to initalize UfsHcInfo.\r
994**/\r
995EFI_STATUS\r
996GetUfsHcInfo (\r
997 IN UFS_PASS_THRU_PRIVATE_DATA *Private\r
998 );\r
999\r
5966dd8f
FT		 1000extern EFI_COMPONENT_NAME_PROTOCOL gUfsPassThruComponentName;\r
1001extern EFI_COMPONENT_NAME2_PROTOCOL gUfsPassThruComponentName2;\r
1002extern EFI_DRIVER_BINDING_PROTOCOL gUfsPassThruDriverBinding;\r
ecc32c90 1003extern EDKII_UFS_HC_PLATFORM_PROTOCOL *mUfsHcPlatform;\r
0591696e
FT		 1004\r
1005#endif\r
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