1 /** @file 2 3 Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 **/ 13 14 #ifndef _UFS_PASS_THRU_H_ 15 #define _UFS_PASS_THRU_H_ 16 17 #include <Uefi.h> 18 19 #include <Protocol/ScsiPassThruExt.h> 20 #include <Protocol/UfsHostController.h> 21 22 #include <Library/DebugLib.h> 23 #include <Library/UefiDriverEntryPoint.h> 24 #include <Library/BaseLib.h> 25 #include <Library/UefiLib.h> 26 #include <Library/BaseMemoryLib.h> 27 #include <Library/MemoryAllocationLib.h> 28 #include <Library/UefiBootServicesTableLib.h> 29 #include <Library/DevicePathLib.h> 30 #include <Library/TimerLib.h> 31 32 #include "UfsPassThruHci.h" 33 34 #define UFS_PASS_THRU_SIG SIGNATURE_32 ('U', 'F', 'S', 'P') 35 36 // 37 // Lun 0~7 is for 8 common luns. 38 // Lun 8~11 is for those 4 well known luns (Refer to UFS 2.0 spec Table 10.58 for details): 39 // Lun 8: REPORT LUNS 40 // Lun 9: UFS DEVICE 41 // Lun 10: BOOT 42 // Lun 11: RPMB 43 // 44 #define UFS_MAX_LUNS 12 45 #define UFS_WLUN_PREFIX 0xC1 46 47 typedef struct { 48 UINT8 Lun[UFS_MAX_LUNS]; 49 UINT16 BitMask:12; // Bit 0~7 is 1/1 mapping to common luns. Bit 8~11 is 1/1 mapping to well-known luns. 50 UINT16 Rsvd:4; 51 } UFS_EXPOSED_LUNS; 52 53 // 54 // Iterate through the doule linked list. This is delete-safe. 55 // Do not touch NextEntry 56 // 57 #define EFI_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \ 58 for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink;\ 59 Entry != (ListHead); Entry = NextEntry, NextEntry = Entry->ForwardLink) 60 61 typedef struct _UFS_PASS_THRU_PRIVATE_DATA { 62 UINT32 Signature; 63 EFI_HANDLE Handle; 64 EFI_EXT_SCSI_PASS_THRU_MODE ExtScsiPassThruMode; 65 EFI_EXT_SCSI_PASS_THRU_PROTOCOL ExtScsiPassThru; 66 EDKII_UFS_HOST_CONTROLLER_PROTOCOL *UfsHostController; 67 UINTN UfsHcBase; 68 UINT32 Capabilities; 69 70 UINT8 TaskTag; 71 72 VOID *UtpTrlBase; 73 UINT8 Nutrs; 74 VOID *TrlMapping; 75 VOID *UtpTmrlBase; 76 UINT8 Nutmrs; 77 VOID *TmrlMapping; 78 79 UFS_EXPOSED_LUNS Luns; 80 81 // 82 // For Non-blocking operation. 83 // 84 EFI_EVENT TimerEvent; 85 LIST_ENTRY Queue; 86 } UFS_PASS_THRU_PRIVATE_DATA; 87 88 #define UFS_PASS_THRU_TRANS_REQ_SIG SIGNATURE_32 ('U', 'F', 'S', 'T') 89 90 typedef struct { 91 UINT32 Signature; 92 LIST_ENTRY TransferList; 93 94 UINT8 Slot; 95 UTP_TRD *Trd; 96 UINT32 CmdDescSize; 97 VOID *CmdDescHost; 98 VOID *CmdDescMapping; 99 VOID *DataBufMapping; 100 101 EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet; 102 UINT64 TimeoutRemain; 103 EFI_EVENT CallerEvent; 104 } UFS_PASS_THRU_TRANS_REQ; 105 106 #define UFS_PASS_THRU_TRANS_REQ_FROM_THIS(a) \ 107 CR(a, UFS_PASS_THRU_TRANS_REQ, TransferList, UFS_PASS_THRU_TRANS_REQ_SIG) 108 109 #define UFS_TIMEOUT EFI_TIMER_PERIOD_SECONDS(3) 110 #define UFS_HC_ASYNC_TIMER EFI_TIMER_PERIOD_MILLISECONDS(1) 111 112 #define ROUNDUP8(x) (((x) % 8 == 0) ? (x) : ((x) / 8 + 1) * 8) 113 114 #define IS_ALIGNED(addr, size) (((UINTN) (addr) & (size - 1)) == 0) 115 116 #define UFS_PASS_THRU_PRIVATE_DATA_FROM_THIS(a) \ 117 CR (a, \ 118 UFS_PASS_THRU_PRIVATE_DATA, \ 119 ExtScsiPassThru, \ 120 UFS_PASS_THRU_SIG \ 121 ) 122 123 typedef struct _UFS_DEVICE_MANAGEMENT_REQUEST_PACKET { 124 UINT64 Timeout; 125 VOID *InDataBuffer; 126 VOID *OutDataBuffer; 127 UINT8 Opcode; 128 UINT8 DescId; 129 UINT8 Index; 130 UINT8 Selector; 131 UINT32 InTransferLength; 132 UINT32 OutTransferLength; 133 UINT8 DataDirection; 134 UINT8 Ocs; 135 } UFS_DEVICE_MANAGEMENT_REQUEST_PACKET; 136 137 // 138 // function prototype 139 // 140 /** 141 Tests to see if this driver supports a given controller. If a child device is provided, 142 it further tests to see if this driver supports creating a handle for the specified child device. 143 144 This function checks to see if the driver specified by This supports the device specified by 145 ControllerHandle. Drivers will typically use the device path attached to 146 ControllerHandle and/or the services from the bus I/O abstraction attached to 147 ControllerHandle to determine if the driver supports ControllerHandle. This function 148 may be called many times during platform initialization. In order to reduce boot times, the tests 149 performed by this function must be very small, and take as little time as possible to execute. This 150 function must not change the state of any hardware devices, and this function must be aware that the 151 device specified by ControllerHandle may already be managed by the same driver or a 152 different driver. This function must match its calls to AllocatePages() with FreePages(), 153 AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). 154 Since ControllerHandle may have been previously started by the same driver, if a protocol is 155 already in the opened state, then it must not be closed with CloseProtocol(). This is required 156 to guarantee the state of ControllerHandle is not modified by this function. 157 158 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. 159 @param[in] ControllerHandle The handle of the controller to test. This handle 160 must support a protocol interface that supplies 161 an I/O abstraction to the driver. 162 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This 163 parameter is ignored by device drivers, and is optional for bus 164 drivers. For bus drivers, if this parameter is not NULL, then 165 the bus driver must determine if the bus controller specified 166 by ControllerHandle and the child controller specified 167 by RemainingDevicePath are both supported by this 168 bus driver. 169 170 @retval EFI_SUCCESS The device specified by ControllerHandle and 171 RemainingDevicePath is supported by the driver specified by This. 172 @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and 173 RemainingDevicePath is already being managed by the driver 174 specified by This. 175 @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and 176 RemainingDevicePath is already being managed by a different 177 driver or an application that requires exclusive access. 178 Currently not implemented. 179 @retval EFI_UNSUPPORTED The device specified by ControllerHandle and 180 RemainingDevicePath is not supported by the driver specified by This. 181 **/ 182 EFI_STATUS 183 EFIAPI 184 UfsPassThruDriverBindingSupported ( 185 IN EFI_DRIVER_BINDING_PROTOCOL *This, 186 IN EFI_HANDLE Controller, 187 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath 188 ); 189 190 /** 191 Starts a device controller or a bus controller. 192 193 The Start() function is designed to be invoked from the EFI boot service ConnectController(). 194 As a result, much of the error checking on the parameters to Start() has been moved into this 195 common boot service. It is legal to call Start() from other locations, 196 but the following calling restrictions must be followed or the system behavior will not be deterministic. 197 1. ControllerHandle must be a valid EFI_HANDLE. 198 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned 199 EFI_DEVICE_PATH_PROTOCOL. 200 3. Prior to calling Start(), the Supported() function for the driver specified by This must 201 have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. 202 203 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. 204 @param[in] ControllerHandle The handle of the controller to start. This handle 205 must support a protocol interface that supplies 206 an I/O abstraction to the driver. 207 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This 208 parameter is ignored by device drivers, and is optional for bus 209 drivers. For a bus driver, if this parameter is NULL, then handles 210 for all the children of Controller are created by this driver. 211 If this parameter is not NULL and the first Device Path Node is 212 not the End of Device Path Node, then only the handle for the 213 child device specified by the first Device Path Node of 214 RemainingDevicePath is created by this driver. 215 If the first Device Path Node of RemainingDevicePath is 216 the End of Device Path Node, no child handle is created by this 217 driver. 218 219 @retval EFI_SUCCESS The device was started. 220 @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented. 221 @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. 222 @retval Others The driver failded to start the device. 223 224 **/ 225 EFI_STATUS 226 EFIAPI 227 UfsPassThruDriverBindingStart ( 228 IN EFI_DRIVER_BINDING_PROTOCOL *This, 229 IN EFI_HANDLE Controller, 230 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath 231 ); 232 233 /** 234 Stops a device controller or a bus controller. 235 236 The Stop() function is designed to be invoked from the EFI boot service DisconnectController(). 237 As a result, much of the error checking on the parameters to Stop() has been moved 238 into this common boot service. It is legal to call Stop() from other locations, 239 but the following calling restrictions must be followed or the system behavior will not be deterministic. 240 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this 241 same driver's Start() function. 242 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid 243 EFI_HANDLE. In addition, all of these handles must have been created in this driver's 244 Start() function, and the Start() function must have called OpenProtocol() on 245 ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER. 246 247 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. 248 @param[in] ControllerHandle A handle to the device being stopped. The handle must 249 support a bus specific I/O protocol for the driver 250 to use to stop the device. 251 @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer. 252 @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL 253 if NumberOfChildren is 0. 254 255 @retval EFI_SUCCESS The device was stopped. 256 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. 257 258 **/ 259 EFI_STATUS 260 EFIAPI 261 UfsPassThruDriverBindingStop ( 262 IN EFI_DRIVER_BINDING_PROTOCOL *This, 263 IN EFI_HANDLE Controller, 264 IN UINTN NumberOfChildren, 265 IN EFI_HANDLE *ChildHandleBuffer 266 ); 267 268 // 269 // EFI Component Name Functions 270 // 271 /** 272 Retrieves a Unicode string that is the user readable name of the driver. 273 274 This function retrieves the user readable name of a driver in the form of a 275 Unicode string. If the driver specified by This has a user readable name in 276 the language specified by Language, then a pointer to the driver name is 277 returned in DriverName, and EFI_SUCCESS is returned. If the driver specified 278 by This does not support the language specified by Language, 279 then EFI_UNSUPPORTED is returned. 280 281 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 282 EFI_COMPONENT_NAME_PROTOCOL instance. 283 284 @param Language[in] A pointer to a Null-terminated ASCII string 285 array indicating the language. This is the 286 language of the driver name that the caller is 287 requesting, and it must match one of the 288 languages specified in SupportedLanguages. The 289 number of languages supported by a driver is up 290 to the driver writer. Language is specified 291 in RFC 4646 or ISO 639-2 language code format. 292 293 @param DriverName[out] A pointer to the Unicode string to return. 294 This Unicode string is the name of the 295 driver specified by This in the language 296 specified by Language. 297 298 @retval EFI_SUCCESS The Unicode string for the Driver specified by 299 This and the language specified by Language was 300 returned in DriverName. 301 302 @retval EFI_INVALID_PARAMETER Language is NULL. 303 304 @retval EFI_INVALID_PARAMETER DriverName is NULL. 305 306 @retval EFI_UNSUPPORTED The driver specified by This does not support 307 the language specified by Language. 308 309 **/ 310 EFI_STATUS 311 EFIAPI 312 UfsPassThruComponentNameGetDriverName ( 313 IN EFI_COMPONENT_NAME_PROTOCOL *This, 314 IN CHAR8 *Language, 315 OUT CHAR16 **DriverName 316 ); 317 318 319 /** 320 Retrieves a Unicode string that is the user readable name of the controller 321 that is being managed by a driver. 322 323 This function retrieves the user readable name of the controller specified by 324 ControllerHandle and ChildHandle in the form of a Unicode string. If the 325 driver specified by This has a user readable name in the language specified by 326 Language, then a pointer to the controller name is returned in ControllerName, 327 and EFI_SUCCESS is returned. If the driver specified by This is not currently 328 managing the controller specified by ControllerHandle and ChildHandle, 329 then EFI_UNSUPPORTED is returned. If the driver specified by This does not 330 support the language specified by Language, then EFI_UNSUPPORTED is returned. 331 332 @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or 333 EFI_COMPONENT_NAME_PROTOCOL instance. 334 335 @param ControllerHandle[in] The handle of a controller that the driver 336 specified by This is managing. This handle 337 specifies the controller whose name is to be 338 returned. 339 340 @param ChildHandle[in] The handle of the child controller to retrieve 341 the name of. This is an optional parameter that 342 may be NULL. It will be NULL for device 343 drivers. It will also be NULL for a bus drivers 344 that wish to retrieve the name of the bus 345 controller. It will not be NULL for a bus 346 driver that wishes to retrieve the name of a 347 child controller. 348 349 @param Language[in] A pointer to a Null-terminated ASCII string 350 array indicating the language. This is the 351 language of the driver name that the caller is 352 requesting, and it must match one of the 353 languages specified in SupportedLanguages. The 354 number of languages supported by a driver is up 355 to the driver writer. Language is specified in 356 RFC 4646 or ISO 639-2 language code format. 357 358 @param ControllerName[out] A pointer to the Unicode string to return. 359 This Unicode string is the name of the 360 controller specified by ControllerHandle and 361 ChildHandle in the language specified by 362 Language from the point of view of the driver 363 specified by This. 364 365 @retval EFI_SUCCESS The Unicode string for the user readable name in 366 the language specified by Language for the 367 driver specified by This was returned in 368 DriverName. 369 370 @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. 371 372 @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid 373 EFI_HANDLE. 374 375 @retval EFI_INVALID_PARAMETER Language is NULL. 376 377 @retval EFI_INVALID_PARAMETER ControllerName is NULL. 378 379 @retval EFI_UNSUPPORTED The driver specified by This is not currently 380 managing the controller specified by 381 ControllerHandle and ChildHandle. 382 383 @retval EFI_UNSUPPORTED The driver specified by This does not support 384 the language specified by Language. 385 386 **/ 387 EFI_STATUS 388 EFIAPI 389 UfsPassThruComponentNameGetControllerName ( 390 IN EFI_COMPONENT_NAME_PROTOCOL *This, 391 IN EFI_HANDLE ControllerHandle, 392 IN EFI_HANDLE ChildHandle OPTIONAL, 393 IN CHAR8 *Language, 394 OUT CHAR16 **ControllerName 395 ); 396 397 /** 398 Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function 399 supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the 400 nonblocking I/O functionality is optional. 401 402 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. 403 @param Target The Target is an array of size TARGET_MAX_BYTES and it represents 404 the id of the SCSI device to send the SCSI Request Packet. Each 405 transport driver may choose to utilize a subset of this size to suit the needs 406 of transport target representation. For example, a Fibre Channel driver 407 may use only 8 bytes (WWN) to represent an FC target. 408 @param Lun The LUN of the SCSI device to send the SCSI Request Packet. 409 @param Packet A pointer to the SCSI Request Packet to send to the SCSI device 410 specified by Target and Lun. 411 @param Event If nonblocking I/O is not supported then Event is ignored, and blocking 412 I/O is performed. If Event is NULL, then blocking I/O is performed. If 413 Event is not NULL and non blocking I/O is supported, then 414 nonblocking I/O is performed, and Event will be signaled when the 415 SCSI Request Packet completes. 416 417 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional 418 commands, InTransferLength bytes were transferred from 419 InDataBuffer. For write and bi-directional commands, 420 OutTransferLength bytes were transferred by 421 OutDataBuffer. 422 @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that 423 could be transferred is returned in InTransferLength. For write 424 and bi-directional commands, OutTransferLength bytes were 425 transferred by OutDataBuffer. 426 @retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many 427 SCSI Request Packets already queued. The caller may retry again later. 428 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request 429 Packet. 430 @retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid. 431 @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported 432 by the host adapter. This includes the case of Bi-directional SCSI 433 commands not supported by the implementation. The SCSI Request 434 Packet was not sent, so no additional status information is available. 435 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute. 436 437 **/ 438 EFI_STATUS 439 EFIAPI 440 UfsPassThruPassThru ( 441 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, 442 IN UINT8 *Target, 443 IN UINT64 Lun, 444 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet, 445 IN EFI_EVENT Event OPTIONAL 446 ); 447 448 /** 449 Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These 450 can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal 451 Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the 452 Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI 453 channel. 454 455 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. 456 @param Target On input, a pointer to the Target ID (an array of size 457 TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel. 458 On output, a pointer to the Target ID (an array of 459 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI 460 channel. An input value of 0xF(all bytes in the array are 0xF) in the 461 Target array retrieves the Target ID of the first SCSI device present on a 462 SCSI channel. 463 @param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI 464 channel. On output, a pointer to the LUN of the next SCSI device present 465 on a SCSI channel. 466 467 @retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI 468 channel was returned in Target and Lun. 469 @retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were 470 not returned on a previous call to GetNextTargetLun(). 471 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel. 472 473 **/ 474 EFI_STATUS 475 EFIAPI 476 UfsPassThruGetNextTargetLun ( 477 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, 478 IN OUT UINT8 **Target, 479 IN OUT UINT64 *Lun 480 ); 481 482 /** 483 Used to allocate and build a device path node for a SCSI device on a SCSI channel. 484 485 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. 486 @param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the 487 Target ID of the SCSI device for which a device path node is to be 488 allocated and built. Transport drivers may chose to utilize a subset of 489 this size to suit the representation of targets. For example, a Fibre 490 Channel driver may use only 8 bytes (WWN) in the array to represent a 491 FC target. 492 @param Lun The LUN of the SCSI device for which a device path node is to be 493 allocated and built. 494 @param DevicePath A pointer to a single device path node that describes the SCSI device 495 specified by Target and Lun. This function is responsible for 496 allocating the buffer DevicePath with the boot service 497 AllocatePool(). It is the caller's responsibility to free 498 DevicePath when the caller is finished with DevicePath. 499 500 @retval EFI_SUCCESS The device path node that describes the SCSI device specified by 501 Target and Lun was allocated and returned in 502 DevicePath. 503 @retval EFI_INVALID_PARAMETER DevicePath is NULL. 504 @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist 505 on the SCSI channel. 506 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath. 507 508 **/ 509 EFI_STATUS 510 EFIAPI 511 UfsPassThruBuildDevicePath ( 512 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, 513 IN UINT8 *Target, 514 IN UINT64 Lun, 515 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath 516 ); 517 518 /** 519 Used to translate a device path node to a Target ID and LUN. 520 521 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. 522 @param DevicePath A pointer to a single device path node that describes the SCSI device 523 on the SCSI channel. 524 @param Target A pointer to the Target Array which represents the ID of a SCSI device 525 on the SCSI channel. 526 @param Lun A pointer to the LUN of a SCSI device on the SCSI channel. 527 528 @retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and 529 LUN, and they were returned in Target and Lun. 530 @retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL. 531 @retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN 532 does not exist. 533 @retval EFI_UNSUPPORTED This driver does not support the device path node type in 534 DevicePath. 535 536 **/ 537 EFI_STATUS 538 EFIAPI 539 UfsPassThruGetTargetLun ( 540 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, 541 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, 542 OUT UINT8 **Target, 543 OUT UINT64 *Lun 544 ); 545 546 /** 547 Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel. 548 549 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. 550 551 @retval EFI_SUCCESS The SCSI channel was reset. 552 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel. 553 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel. 554 @retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation. 555 556 **/ 557 EFI_STATUS 558 EFIAPI 559 UfsPassThruResetChannel ( 560 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This 561 ); 562 563 /** 564 Resets a SCSI logical unit that is connected to a SCSI channel. 565 566 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. 567 @param Target The Target is an array of size TARGET_MAX_BYTE and it represents the 568 target port ID of the SCSI device containing the SCSI logical unit to 569 reset. Transport drivers may chose to utilize a subset of this array to suit 570 the representation of their targets. 571 @param Lun The LUN of the SCSI device to reset. 572 573 @retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset. 574 @retval EFI_INVALID_PARAMETER Target or Lun is NULL. 575 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device 576 specified by Target and Lun. 577 @retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation. 578 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device 579 specified by Target and Lun. 580 581 **/ 582 EFI_STATUS 583 EFIAPI 584 UfsPassThruResetTargetLun ( 585 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, 586 IN UINT8 *Target, 587 IN UINT64 Lun 588 ); 589 590 /** 591 Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either 592 be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs 593 for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to 594 see if a SCSI device is actually present at that location on the SCSI channel. 595 596 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. 597 @param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel. 598 On output, a pointer to the Target ID (an array of 599 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI 600 channel. An input value of 0xF(all bytes in the array are 0xF) in the 601 Target array retrieves the Target ID of the first SCSI device present on a 602 SCSI channel. 603 604 @retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI 605 channel was returned in Target. 606 @retval EFI_INVALID_PARAMETER Target or Lun is NULL. 607 @retval EFI_TIMEOUT Target array is not all 0xF, and Target was not 608 returned on a previous call to GetNextTarget(). 609 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel. 610 611 **/ 612 EFI_STATUS 613 EFIAPI 614 UfsPassThruGetNextTarget ( 615 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, 616 IN OUT UINT8 **Target 617 ); 618 619 /** 620 Sends a UFS-supported SCSI Request Packet to a UFS device that is attached to the UFS host controller. 621 622 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure. 623 @param[in] Lun The LUN of the UFS device to send the SCSI Request Packet. 624 @param[in, out] Packet A pointer to the SCSI Request Packet to send to a specified Lun of the 625 UFS device. 626 @param[in] Event If nonblocking I/O is not supported then Event is ignored, and blocking 627 I/O is performed. If Event is NULL, then blocking I/O is performed. If 628 Event is not NULL and non blocking I/O is supported, then 629 nonblocking I/O is performed, and Event will be signaled when the 630 SCSI Request Packet completes. 631 632 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional 633 commands, InTransferLength bytes were transferred from 634 InDataBuffer. For write and bi-directional commands, 635 OutTransferLength bytes were transferred by 636 OutDataBuffer. 637 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request 638 Packet. 639 @retval EFI_OUT_OF_RESOURCES The resource for transfer is not available. 640 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute. 641 642 **/ 643 EFI_STATUS 644 UfsExecScsiCmds ( 645 IN UFS_PASS_THRU_PRIVATE_DATA *Private, 646 IN UINT8 Lun, 647 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet, 648 IN EFI_EVENT Event OPTIONAL 649 ); 650 651 /** 652 Initialize the UFS host controller. 653 654 @param[in] Private The pointer to the NVME_CONTROLLER_PRIVATE_DATA data structure. 655 656 @retval EFI_SUCCESS The NVM Express Controller is initialized successfully. 657 @retval Others A device error occurred while initializing the controller. 658 659 **/ 660 EFI_STATUS 661 UfsControllerInit ( 662 IN UFS_PASS_THRU_PRIVATE_DATA *Private 663 ); 664 665 /** 666 Stop the UFS host controller. 667 668 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure. 669 670 @retval EFI_SUCCESS The Ufs Host Controller is stopped successfully. 671 @retval Others A device error occurred while stopping the controller. 672 673 **/ 674 EFI_STATUS 675 UfsControllerStop ( 676 IN UFS_PASS_THRU_PRIVATE_DATA *Private 677 ); 678 679 /** 680 Allocate common buffer for host and UFS bus master access simultaneously. 681 682 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure. 683 @param[in] Size The length of buffer to be allocated. 684 @param[out] CmdDescHost A pointer to store the base system memory address of the allocated range. 685 @param[out] CmdDescPhyAddr The resulting map address for the UFS bus master to use to access the hosts CmdDescHost. 686 @param[out] CmdDescMapping A resulting value to pass to Unmap(). 687 688 @retval EFI_SUCCESS The common buffer was allocated successfully. 689 @retval EFI_DEVICE_ERROR The allocation fails. 690 @retval EFI_OUT_OF_RESOURCES The memory resource is insufficient. 691 692 **/ 693 EFI_STATUS 694 UfsAllocateAlignCommonBuffer ( 695 IN UFS_PASS_THRU_PRIVATE_DATA *Private, 696 IN UINTN Size, 697 OUT VOID **CmdDescHost, 698 OUT EFI_PHYSICAL_ADDRESS *CmdDescPhyAddr, 699 OUT VOID **CmdDescMapping 700 ); 701 702 /** 703 Set specified flag to 1 on a UFS device. 704 705 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure. 706 @param[in] FlagId The ID of flag to be set. 707 708 @retval EFI_SUCCESS The flag was set successfully. 709 @retval EFI_DEVICE_ERROR A device error occurred while attempting to set the flag. 710 @retval EFI_TIMEOUT A timeout occurred while waiting for the completion of setting the flag. 711 712 **/ 713 EFI_STATUS 714 UfsSetFlag ( 715 IN UFS_PASS_THRU_PRIVATE_DATA *Private, 716 IN UINT8 FlagId 717 ); 718 719 /** 720 Read or write specified device descriptor of a UFS device. 721 722 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure. 723 @param[in] Read The boolean variable to show r/w direction. 724 @param[in] DescId The ID of device descriptor. 725 @param[in] Index The Index of device descriptor. 726 @param[in] Selector The Selector of device descriptor. 727 @param[in, out] Descriptor The buffer of device descriptor to be read or written. 728 @param[in] DescSize The size of device descriptor buffer. 729 730 @retval EFI_SUCCESS The device descriptor was read/written successfully. 731 @retval EFI_DEVICE_ERROR A device error occurred while attempting to r/w the device descriptor. 732 @retval EFI_TIMEOUT A timeout occurred while waiting for the completion of r/w the device descriptor. 733 734 **/ 735 EFI_STATUS 736 UfsRwDeviceDesc ( 737 IN UFS_PASS_THRU_PRIVATE_DATA *Private, 738 IN BOOLEAN Read, 739 IN UINT8 DescId, 740 IN UINT8 Index, 741 IN UINT8 Selector, 742 IN OUT VOID *Descriptor, 743 IN UINT32 DescSize 744 ); 745 746 /** 747 Sends NOP IN cmd to a UFS device for initialization process request. 748 For more details, please refer to UFS 2.0 spec Figure 13.3. 749 750 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure. 751 752 @retval EFI_SUCCESS The NOP IN command was sent by the host. The NOP OUT response was 753 received successfully. 754 @retval EFI_DEVICE_ERROR A device error occurred while attempting to execute NOP IN command. 755 @retval EFI_OUT_OF_RESOURCES The resource for transfer is not available. 756 @retval EFI_TIMEOUT A timeout occurred while waiting for the NOP IN command to execute. 757 758 **/ 759 EFI_STATUS 760 UfsExecNopCmds ( 761 IN UFS_PASS_THRU_PRIVATE_DATA *Private 762 ); 763 764 /** 765 Call back function when the timer event is signaled. 766 767 @param[in] Event The Event this notify function registered to. 768 @param[in] Context Pointer to the context data registered to the Event. 769 770 **/ 771 VOID 772 EFIAPI 773 ProcessAsyncTaskList ( 774 IN EFI_EVENT Event, 775 IN VOID *Context 776 ); 777 778 /** 779 Internal helper function which will signal the caller event and clean up 780 resources. 781 782 @param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data 783 structure. 784 @param[in] TransReq The pointer to the UFS_PASS_THRU_TRANS_REQ data 785 structure. 786 787 **/ 788 VOID 789 EFIAPI 790 SignalCallerEvent ( 791 IN UFS_PASS_THRU_PRIVATE_DATA *Private, 792 IN UFS_PASS_THRU_TRANS_REQ *TransReq 793 ); 794 795 extern EFI_COMPONENT_NAME_PROTOCOL gUfsPassThruComponentName; 796 extern EFI_COMPONENT_NAME2_PROTOCOL gUfsPassThruComponentName2; 797 extern EFI_DRIVER_BINDING_PROTOCOL gUfsPassThruDriverBinding; 798 799 #endif 800
