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1 /** @file
2 This file implements ATA_PASSTHRU_PROCTOCOL and EXT_SCSI_PASSTHRU_PROTOCOL interfaces
3 for managed ATA controllers.
4
5 Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
10
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13
14 **/
15
16 #include "AtaAtapiPassThru.h"
17
18 //
19 // EFI_DRIVER_BINDING_PROTOCOL instance
20 //
21 EFI_DRIVER_BINDING_PROTOCOL gAtaAtapiPassThruDriverBinding = {
22 AtaAtapiPassThruSupported,
23 AtaAtapiPassThruStart,
24 AtaAtapiPassThruStop,
25 0x10,
26 NULL,
27 NULL
28 };
29
30 ATA_ATAPI_PASS_THRU_INSTANCE gAtaAtapiPassThruInstanceTemplate = {
31 ATA_ATAPI_PASS_THRU_SIGNATURE,
32 0, // Controller Handle
33 NULL, // PciIo Protocol
34 NULL, // IdeControllerInit Protocol
35 { // AtaPassThruMode
36 //
37 // According to UEFI2.3 spec Section 12.10, Drivers for non-RAID ATA controllers should set
38 // both EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL
39 // bits.
40 // Note that the driver doesn't support AtaPassThru non blocking I/O.
41 //
42 EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_NONBLOCKIO,
43 //
44 // IoAlign
45 //
46 sizeof (UINTN)
47 },
48 { // AtaPassThru
49 NULL,
50 AtaPassThruPassThru,
51 AtaPassThruGetNextPort,
52 AtaPassThruGetNextDevice,
53 AtaPassThruBuildDevicePath,
54 AtaPassThruGetDevice,
55 AtaPassThruResetPort,
56 AtaPassThruResetDevice
57 },
58 { // ExtScsiPassThruMode
59 //
60 // AdapterId
61 //
62 0,
63 //
64 // According to UEFI2.3 spec Section 14.7, Drivers for non-RAID SCSI controllers should set
65 // both EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL
66 // bits.
67 // Note that the driver doesn't support ExtScsiPassThru non blocking I/O.
68 //
69 EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL,
70 //
71 // IoAlign
72 //
73 sizeof (UINTN)
74 },
75 { // ExtScsiPassThru
76 NULL,
77 ExtScsiPassThruPassThru,
78 ExtScsiPassThruGetNextTargetLun,
79 ExtScsiPassThruBuildDevicePath,
80 ExtScsiPassThruGetTargetLun,
81 ExtScsiPassThruResetChannel,
82 ExtScsiPassThruResetTargetLun,
83 ExtScsiPassThruGetNextTarget
84 },
85 EfiAtaUnknownMode, // Work Mode
86 { // IdeRegisters
87 {0},
88 {0}
89 },
90 { // AhciRegisters
91 0
92 },
93 { // DeviceList
94 NULL,
95 NULL
96 },
97 0, // OriginalAttributes
98 0, // PreviousPort
99 0, // PreviousPortMultiplier
100 0, // PreviousTargetId
101 0, // PreviousLun
102 NULL, // Timer event
103 { // NonBlocking TaskList
104 NULL,
105 NULL
106 }
107 };
108
109 ATAPI_DEVICE_PATH mAtapiDevicePathTemplate = {
110 {
111 MESSAGING_DEVICE_PATH,
112 MSG_ATAPI_DP,
113 {
114 (UINT8) (sizeof (ATAPI_DEVICE_PATH)),
115 (UINT8) ((sizeof (ATAPI_DEVICE_PATH)) >> 8)
116 }
117 },
118 0,
119 0,
120 0
121 };
122
123 SATA_DEVICE_PATH mSataDevicePathTemplate = {
124 {
125 MESSAGING_DEVICE_PATH,
126 MSG_SATA_DP,
127 {
128 (UINT8) (sizeof (SATA_DEVICE_PATH)),
129 (UINT8) ((sizeof (SATA_DEVICE_PATH)) >> 8)
130 }
131 },
132 0,
133 0,
134 0
135 };
136
137 UINT8 mScsiId[TARGET_MAX_BYTES] = {
138 0xFF, 0xFF, 0xFF, 0xFF,
139 0xFF, 0xFF, 0xFF, 0xFF,
140 0xFF, 0xFF, 0xFF, 0xFF,
141 0xFF, 0xFF, 0xFF, 0xFF
142 };
143
144 /**
145 Sends an ATA command to an ATA device that is attached to the ATA controller. This function
146 supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,
147 and the non-blocking I/O functionality is optional.
148
149 @param[in] Port The port number of the ATA device to send the command.
150 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
151 If there is no port multiplier, then specify 0.
152 @param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port
153 and PortMultiplierPort.
154 @param[in] Instance Pointer to the ATA_ATAPI_PASS_THRU_INSTANCE.
155 @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK
156 used by non-blocking mode.
157
158 @retval EFI_SUCCESS The ATA command was sent by the host. For
159 bi-directional commands, InTransferLength bytes
160 were transferred from InDataBuffer. For
161 write and bi-directional commands, OutTransferLength
162 bytes were transferred by OutDataBuffer.
163 @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number
164 of bytes that could be transferred is returned
165 in InTransferLength. For write and bi-directional
166 commands, OutTransferLength bytes were transferred
167 by OutDataBuffer.
168 @retval EFI_NOT_READY The ATA command could not be sent because
169 there are too many ATA commands already
170 queued. The caller may retry again later.
171 @retval EFI_DEVICE_ERROR A device error occurred while attempting
172 to send the ATA command.
173 @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents
174 of Acb are invalid. The ATA command was
175 not sent, so no additional status information
176 is available.
177
178 **/
179 EFI_STATUS
180 EFIAPI
181 AtaPassThruPassThruExecute (
182 IN UINT16 Port,
183 IN UINT16 PortMultiplierPort,
184 IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,
185 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
186 IN ATA_NONBLOCK_TASK *Task OPTIONAL
187 )
188 {
189 EFI_ATA_PASS_THRU_CMD_PROTOCOL Protocol;
190 EFI_ATA_HC_WORK_MODE Mode;
191 EFI_STATUS Status;
192
193 Protocol = Packet->Protocol;
194
195 Mode = Instance->Mode;
196 switch (Mode) {
197 case EfiAtaIdeMode:
198 //
199 // Reassign IDE mode io port registers' base addresses
200 //
201 Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);
202
203 if (EFI_ERROR (Status)) {
204 return Status;
205 }
206
207 switch (Protocol) {
208 case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:
209 Status = AtaNonDataCommandIn (
210 Instance->PciIo,
211 &Instance->IdeRegisters[Port],
212 Packet->Acb,
213 Packet->Asb,
214 Packet->Timeout,
215 Task
216 );
217 break;
218 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:
219 Status = AtaPioDataInOut (
220 Instance->PciIo,
221 &Instance->IdeRegisters[Port],
222 Packet->InDataBuffer,
223 Packet->InTransferLength,
224 TRUE,
225 Packet->Acb,
226 Packet->Asb,
227 Packet->Timeout,
228 Task
229 );
230 break;
231 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:
232 Status = AtaPioDataInOut (
233 Instance->PciIo,
234 &Instance->IdeRegisters[Port],
235 Packet->OutDataBuffer,
236 Packet->OutTransferLength,
237 FALSE,
238 Packet->Acb,
239 Packet->Asb,
240 Packet->Timeout,
241 Task
242 );
243 break;
244 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:
245 Status = AtaUdmaInOut (
246 Instance,
247 &Instance->IdeRegisters[Port],
248 TRUE,
249 Packet->InDataBuffer,
250 Packet->InTransferLength,
251 Packet->Acb,
252 Packet->Asb,
253 Packet->Timeout,
254 Task
255 );
256 break;
257 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:
258 Status = AtaUdmaInOut (
259 Instance,
260 &Instance->IdeRegisters[Port],
261 FALSE,
262 Packet->OutDataBuffer,
263 Packet->OutTransferLength,
264 Packet->Acb,
265 Packet->Asb,
266 Packet->Timeout,
267 Task
268 );
269 break;
270 default :
271 return EFI_UNSUPPORTED;
272 }
273 break;
274 case EfiAtaAhciMode :
275 switch (Protocol) {
276 case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:
277 Status = AhciNonDataTransfer (
278 Instance->PciIo,
279 &Instance->AhciRegisters,
280 (UINT8)Port,
281 (UINT8)PortMultiplierPort,
282 NULL,
283 0,
284 Packet->Acb,
285 Packet->Asb,
286 Packet->Timeout,
287 Task
288 );
289 break;
290 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:
291 Status = AhciPioTransfer (
292 Instance->PciIo,
293 &Instance->AhciRegisters,
294 (UINT8)Port,
295 (UINT8)PortMultiplierPort,
296 NULL,
297 0,
298 TRUE,
299 Packet->Acb,
300 Packet->Asb,
301 Packet->InDataBuffer,
302 Packet->InTransferLength,
303 Packet->Timeout,
304 Task
305 );
306 break;
307 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:
308 Status = AhciPioTransfer (
309 Instance->PciIo,
310 &Instance->AhciRegisters,
311 (UINT8)Port,
312 (UINT8)PortMultiplierPort,
313 NULL,
314 0,
315 FALSE,
316 Packet->Acb,
317 Packet->Asb,
318 Packet->OutDataBuffer,
319 Packet->OutTransferLength,
320 Packet->Timeout,
321 Task
322 );
323 break;
324 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:
325 Status = AhciDmaTransfer (
326 Instance,
327 &Instance->AhciRegisters,
328 (UINT8)Port,
329 (UINT8)PortMultiplierPort,
330 NULL,
331 0,
332 TRUE,
333 Packet->Acb,
334 Packet->Asb,
335 Packet->InDataBuffer,
336 Packet->InTransferLength,
337 Packet->Timeout,
338 Task
339 );
340 break;
341 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:
342 Status = AhciDmaTransfer (
343 Instance,
344 &Instance->AhciRegisters,
345 (UINT8)Port,
346 (UINT8)PortMultiplierPort,
347 NULL,
348 0,
349 FALSE,
350 Packet->Acb,
351 Packet->Asb,
352 Packet->OutDataBuffer,
353 Packet->OutTransferLength,
354 Packet->Timeout,
355 Task
356 );
357 break;
358 default :
359 return EFI_UNSUPPORTED;
360 }
361 break;
362
363 default:
364 Status = EFI_DEVICE_ERROR;
365 break;
366 }
367
368 return Status;
369 }
370
371 /**
372 Call back function when the timer event is signaled.
373
374 @param[in] Event The Event this notify function registered to.
375 @param[in] Context Pointer to the context data registered to the
376 Event.
377
378 **/
379 VOID
380 EFIAPI
381 AsyncNonBlockingTransferRoutine (
382 EFI_EVENT Event,
383 VOID* Context
384 )
385 {
386 LIST_ENTRY *Entry;
387 LIST_ENTRY *EntryHeader;
388 ATA_NONBLOCK_TASK *Task;
389 EFI_STATUS Status;
390 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
391
392 Instance = (ATA_ATAPI_PASS_THRU_INSTANCE *) Context;
393 EntryHeader = &Instance->NonBlockingTaskList;
394 //
395 // Get the Taks from the Taks List and execute it, until there is
396 // no task in the list or the device is busy with task (EFI_NOT_READY).
397 //
398 while (TRUE) {
399 if (!IsListEmpty (EntryHeader)) {
400 Entry = GetFirstNode (EntryHeader);
401 Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (Entry);
402 } else {
403 return;
404 }
405
406 Status = AtaPassThruPassThruExecute (
407 Task->Port,
408 Task->PortMultiplier,
409 Task->Packet,
410 Instance,
411 Task
412 );
413
414 //
415 // If the data transfer meet a error, remove all tasks in the list since these tasks are
416 // associated with one task from Ata Bus and signal the event with error status.
417 //
418 if ((Status != EFI_NOT_READY) && (Status != EFI_SUCCESS)) {
419 DestroyAsynTaskList (Instance, TRUE);
420 break;
421 }
422
423 //
424 // For Non blocking mode, the Status of EFI_NOT_READY means the operation
425 // is not finished yet. Otherwise the operation is successful.
426 //
427 if (Status == EFI_NOT_READY) {
428 break;
429 } else {
430 RemoveEntryList (&Task->Link);
431 gBS->SignalEvent (Task->Event);
432 FreePool (Task);
433 }
434 }
435 }
436
437 /**
438 The Entry Point of module.
439
440 @param[in] ImageHandle The firmware allocated handle for the EFI image.
441 @param[in] SystemTable A pointer to the EFI System Table.
442
443 @retval EFI_SUCCESS The entry point is executed successfully.
444 @retval other Some error occurs when executing this entry point.
445
446 **/
447 EFI_STATUS
448 EFIAPI
449 InitializeAtaAtapiPassThru (
450 IN EFI_HANDLE ImageHandle,
451 IN EFI_SYSTEM_TABLE *SystemTable
452 )
453 {
454 EFI_STATUS Status;
455
456 //
457 // Install driver model protocol(s).
458 //
459 Status = EfiLibInstallDriverBindingComponentName2 (
460 ImageHandle,
461 SystemTable,
462 &gAtaAtapiPassThruDriverBinding,
463 ImageHandle,
464 &gAtaAtapiPassThruComponentName,
465 &gAtaAtapiPassThruComponentName2
466 );
467 ASSERT_EFI_ERROR (Status);
468
469 return Status;
470 }
471
472 /**
473 Tests to see if this driver supports a given controller. If a child device is provided,
474 it further tests to see if this driver supports creating a handle for the specified child device.
475
476 This function checks to see if the driver specified by This supports the device specified by
477 ControllerHandle. Drivers will typically use the device path attached to
478 ControllerHandle and/or the services from the bus I/O abstraction attached to
479 ControllerHandle to determine if the driver supports ControllerHandle. This function
480 may be called many times during platform initialization. In order to reduce boot times, the tests
481 performed by this function must be very small, and take as little time as possible to execute. This
482 function must not change the state of any hardware devices, and this function must be aware that the
483 device specified by ControllerHandle may already be managed by the same driver or a
484 different driver. This function must match its calls to AllocatePages() with FreePages(),
485 AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
486 Because ControllerHandle may have been previously started by the same driver, if a protocol is
487 already in the opened state, then it must not be closed with CloseProtocol(). This is required
488 to guarantee the state of ControllerHandle is not modified by this function.
489
490 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
491 @param[in] ControllerHandle The handle of the controller to test. This handle
492 must support a protocol interface that supplies
493 an I/O abstraction to the driver.
494 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
495 parameter is ignored by device drivers, and is optional for bus
496 drivers. For bus drivers, if this parameter is not NULL, then
497 the bus driver must determine if the bus controller specified
498 by ControllerHandle and the child controller specified
499 by RemainingDevicePath are both supported by this
500 bus driver.
501
502 @retval EFI_SUCCESS The device specified by ControllerHandle and
503 RemainingDevicePath is supported by the driver specified by This.
504 @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
505 RemainingDevicePath is already being managed by the driver
506 specified by This.
507 @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
508 RemainingDevicePath is already being managed by a different
509 driver or an application that requires exclusive access.
510 Currently not implemented.
511 @retval EFI_UNSUPPORTED The device specified by ControllerHandle and
512 RemainingDevicePath is not supported by the driver specified by This.
513 **/
514 EFI_STATUS
515 EFIAPI
516 AtaAtapiPassThruSupported (
517 IN EFI_DRIVER_BINDING_PROTOCOL *This,
518 IN EFI_HANDLE Controller,
519 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
520 )
521 {
522 EFI_STATUS Status;
523 EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
524 EFI_PCI_IO_PROTOCOL *PciIo;
525 PCI_TYPE00 PciData;
526 EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;
527
528 //
529 // SATA Controller is a device driver, and should ingore the
530 // "RemainingDevicePath" according to UEFI spec
531 //
532 Status = gBS->OpenProtocol (
533 Controller,
534 &gEfiDevicePathProtocolGuid,
535 (VOID *) &ParentDevicePath,
536 This->DriverBindingHandle,
537 Controller,
538 EFI_OPEN_PROTOCOL_BY_DRIVER
539 );
540 if (EFI_ERROR (Status)) {
541 //
542 // EFI_ALREADY_STARTED is also an error
543 //
544 return Status;
545 }
546 //
547 // Close the protocol because we don't use it here
548 //
549 gBS->CloseProtocol (
550 Controller,
551 &gEfiDevicePathProtocolGuid,
552 This->DriverBindingHandle,
553 Controller
554 );
555
556 Status = gBS->OpenProtocol (
557 Controller,
558 &gEfiIdeControllerInitProtocolGuid,
559 (VOID **) &IdeControllerInit,
560 This->DriverBindingHandle,
561 Controller,
562 EFI_OPEN_PROTOCOL_BY_DRIVER
563 );
564
565 if (EFI_ERROR (Status)) {
566 //
567 // EFI_ALREADY_STARTED is also an error
568 //
569 return Status;
570 }
571
572 //
573 // Close the I/O Abstraction(s) used to perform the supported test
574 //
575 gBS->CloseProtocol (
576 Controller,
577 &gEfiIdeControllerInitProtocolGuid,
578 This->DriverBindingHandle,
579 Controller
580 );
581
582 //
583 // Now test the EfiPciIoProtocol
584 //
585 Status = gBS->OpenProtocol (
586 Controller,
587 &gEfiPciIoProtocolGuid,
588 (VOID **) &PciIo,
589 This->DriverBindingHandle,
590 Controller,
591 EFI_OPEN_PROTOCOL_GET_PROTOCOL
592 );
593 if (EFI_ERROR (Status)) {
594 return Status;
595 }
596 //
597 // Now further check the PCI header: Base class (offset 0x0B) and
598 // Sub Class (offset 0x0A). This controller should be an ATA controller
599 //
600 Status = PciIo->Pci.Read (
601 PciIo,
602 EfiPciIoWidthUint8,
603 PCI_CLASSCODE_OFFSET,
604 sizeof (PciData.Hdr.ClassCode),
605 PciData.Hdr.ClassCode
606 );
607 if (EFI_ERROR (Status)) {
608 return EFI_UNSUPPORTED;
609 }
610
611 if (IS_PCI_IDE (&PciData) || IS_PCI_SATADPA (&PciData)) {
612 return EFI_SUCCESS;
613 }
614
615 return EFI_UNSUPPORTED;
616 }
617
618 /**
619 Starts a device controller or a bus controller.
620
621 The Start() function is designed to be invoked from the EFI boot service ConnectController().
622 As a result, much of the error checking on the parameters to Start() has been moved into this
623 common boot service. It is legal to call Start() from other locations,
624 but the following calling restrictions must be followed, or the system behavior will not be deterministic.
625 1. ControllerHandle must be a valid EFI_HANDLE.
626 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
627 EFI_DEVICE_PATH_PROTOCOL.
628 3. Prior to calling Start(), the Supported() function for the driver specified by This must
629 have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
630
631 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
632 @param[in] ControllerHandle The handle of the controller to start. This handle
633 must support a protocol interface that supplies
634 an I/O abstraction to the driver.
635 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
636 parameter is ignored by device drivers, and is optional for bus
637 drivers. For a bus driver, if this parameter is NULL, then handles
638 for all the children of Controller are created by this driver.
639 If this parameter is not NULL and the first Device Path Node is
640 not the End of Device Path Node, then only the handle for the
641 child device specified by the first Device Path Node of
642 RemainingDevicePath is created by this driver.
643 If the first Device Path Node of RemainingDevicePath is
644 the End of Device Path Node, no child handle is created by this
645 driver.
646
647 @retval EFI_SUCCESS The device was started.
648 @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
649 @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
650 @retval Others The driver failded to start the device.
651
652 **/
653 EFI_STATUS
654 EFIAPI
655 AtaAtapiPassThruStart (
656 IN EFI_DRIVER_BINDING_PROTOCOL *This,
657 IN EFI_HANDLE Controller,
658 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
659 )
660 {
661 EFI_STATUS Status;
662 EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;
663 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
664 EFI_PCI_IO_PROTOCOL *PciIo;
665 UINT64 Supports;
666 UINT64 OriginalPciAttributes;
667
668 Status = EFI_SUCCESS;
669 IdeControllerInit = NULL;
670 Instance = NULL;
671 OriginalPciAttributes = 0;
672
673 DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Start== Controller = %x\n", Controller));
674
675 Status = gBS->OpenProtocol (
676 Controller,
677 &gEfiIdeControllerInitProtocolGuid,
678 (VOID **) &IdeControllerInit,
679 This->DriverBindingHandle,
680 Controller,
681 EFI_OPEN_PROTOCOL_BY_DRIVER
682 );
683
684 if (EFI_ERROR (Status)) {
685 DEBUG ((EFI_D_ERROR, "Open Ide_Controller_Init Error, Status=%r", Status));
686 goto ErrorExit;
687 }
688
689 Status = gBS->OpenProtocol (
690 Controller,
691 &gEfiPciIoProtocolGuid,
692 (VOID **) &PciIo,
693 This->DriverBindingHandle,
694 Controller,
695 EFI_OPEN_PROTOCOL_GET_PROTOCOL
696 );
697 if (EFI_ERROR (Status)) {
698 DEBUG ((EFI_D_ERROR, "Get Pci_Io Protocol Error, Status=%r", Status));
699 goto ErrorExit;
700 }
701
702 Status = PciIo->Attributes (
703 PciIo,
704 EfiPciIoAttributeOperationGet,
705 0,
706 &OriginalPciAttributes
707 );
708
709 if (EFI_ERROR (Status)) {
710 goto ErrorExit;
711 }
712
713 Status = PciIo->Attributes (
714 PciIo,
715 EfiPciIoAttributeOperationSupported,
716 0,
717 &Supports
718 );
719 if (!EFI_ERROR (Status)) {
720 Supports &= (UINT64)EFI_PCI_DEVICE_ENABLE;
721 Status = PciIo->Attributes (
722 PciIo,
723 EfiPciIoAttributeOperationEnable,
724 Supports,
725 NULL
726 );
727 }
728
729 if (EFI_ERROR (Status)) {
730 goto ErrorExit;
731 }
732
733 //
734 // Allocate a buffer to store the ATA_ATAPI_PASS_THRU_INSTANCE data structure
735 //
736 Instance = AllocateCopyPool (sizeof (ATA_ATAPI_PASS_THRU_INSTANCE), &gAtaAtapiPassThruInstanceTemplate);
737 if (Instance == NULL) {
738 goto ErrorExit;
739 }
740
741 Instance->ControllerHandle = Controller;
742 Instance->IdeControllerInit = IdeControllerInit;
743 Instance->PciIo = PciIo;
744 Instance->OriginalPciAttributes = OriginalPciAttributes;
745 Instance->AtaPassThru.Mode = &Instance->AtaPassThruMode;
746 Instance->ExtScsiPassThru.Mode = &Instance->ExtScsiPassThruMode;
747 InitializeListHead(&Instance->DeviceList);
748 InitializeListHead(&Instance->NonBlockingTaskList);
749
750 Instance->TimerEvent = NULL;
751
752 Status = gBS->CreateEvent (
753 EVT_TIMER | EVT_NOTIFY_SIGNAL,
754 TPL_NOTIFY,
755 AsyncNonBlockingTransferRoutine,
756 Instance,
757 &Instance->TimerEvent
758 );
759 if (EFI_ERROR (Status)) {
760 goto ErrorExit;
761 }
762
763 //
764 // Set 1ms timer.
765 //
766 Status = gBS->SetTimer (Instance->TimerEvent, TimerPeriodic, 10000);
767 if (EFI_ERROR (Status)) {
768 goto ErrorExit;
769 }
770
771 //
772 // Enumerate all inserted ATA devices.
773 //
774 Status = EnumerateAttachedDevice (Instance);
775 if (EFI_ERROR (Status)) {
776 goto ErrorExit;
777 }
778
779 Status = gBS->InstallMultipleProtocolInterfaces (
780 &Controller,
781 &gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),
782 &gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),
783 NULL
784 );
785 ASSERT_EFI_ERROR (Status);
786
787 return Status;
788
789 ErrorExit:
790 if (IdeControllerInit != NULL) {
791 gBS->CloseProtocol (
792 Controller,
793 &gEfiIdeControllerInitProtocolGuid,
794 This->DriverBindingHandle,
795 Controller
796 );
797 }
798
799 if ((Instance != NULL) && (Instance->TimerEvent != NULL)) {
800 gBS->CloseEvent (Instance->TimerEvent);
801 }
802
803 //
804 // Remove all inserted ATA devices.
805 //
806 DestroyDeviceInfoList(Instance);
807
808 if (Instance != NULL) {
809 FreePool (Instance);
810 }
811 return EFI_UNSUPPORTED;
812 }
813
814 /**
815 Stops a device controller or a bus controller.
816
817 The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
818 As a result, much of the error checking on the parameters to Stop() has been moved
819 into this common boot service. It is legal to call Stop() from other locations,
820 but the following calling restrictions must be followed, or the system behavior will not be deterministic.
821 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
822 same driver's Start() function.
823 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
824 EFI_HANDLE. In addition, all of these handles must have been created in this driver's
825 Start() function, and the Start() function must have called OpenProtocol() on
826 ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
827
828 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
829 @param[in] ControllerHandle A handle to the device being stopped. The handle must
830 support a bus specific I/O protocol for the driver
831 to use to stop the device.
832 @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
833 @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
834 if NumberOfChildren is 0.
835
836 @retval EFI_SUCCESS The device was stopped.
837 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
838
839 **/
840 EFI_STATUS
841 EFIAPI
842 AtaAtapiPassThruStop (
843 IN EFI_DRIVER_BINDING_PROTOCOL *This,
844 IN EFI_HANDLE Controller,
845 IN UINTN NumberOfChildren,
846 IN EFI_HANDLE *ChildHandleBuffer
847 )
848 {
849 EFI_STATUS Status;
850 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
851 EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;
852 EFI_PCI_IO_PROTOCOL *PciIo;
853 EFI_AHCI_REGISTERS *AhciRegisters;
854 UINT64 Supports;
855
856 DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Stop== Controller = %x\n", Controller));
857
858 Status = gBS->OpenProtocol (
859 Controller,
860 &gEfiAtaPassThruProtocolGuid,
861 (VOID **) &AtaPassThru,
862 This->DriverBindingHandle,
863 Controller,
864 EFI_OPEN_PROTOCOL_GET_PROTOCOL
865 );
866
867 if (EFI_ERROR (Status)) {
868 return EFI_DEVICE_ERROR;
869 }
870
871 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (AtaPassThru);
872
873 Status = gBS->UninstallMultipleProtocolInterfaces (
874 Controller,
875 &gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),
876 &gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),
877 NULL
878 );
879
880 if (EFI_ERROR (Status)) {
881 return EFI_DEVICE_ERROR;
882 }
883
884 //
885 // Close protocols opened by AtaAtapiPassThru controller driver
886 //
887 gBS->CloseProtocol (
888 Controller,
889 &gEfiIdeControllerInitProtocolGuid,
890 This->DriverBindingHandle,
891 Controller
892 );
893
894 //
895 // Close Non-Blocking timer and free Task list.
896 //
897 if (Instance->TimerEvent != NULL) {
898 gBS->CloseEvent (Instance->TimerEvent);
899 Instance->TimerEvent = NULL;
900 }
901 DestroyAsynTaskList (Instance, FALSE);
902 //
903 // Free allocated resource
904 //
905 DestroyDeviceInfoList (Instance);
906
907 //
908 // If the current working mode is AHCI mode, then pre-allocated resource
909 // for AHCI initialization should be released.
910 //
911 PciIo = Instance->PciIo;
912
913 if (Instance->Mode == EfiAtaAhciMode) {
914 AhciRegisters = &Instance->AhciRegisters;
915 PciIo->Unmap (
916 PciIo,
917 AhciRegisters->MapCommandTable
918 );
919 PciIo->FreeBuffer (
920 PciIo,
921 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandTableSize),
922 AhciRegisters->AhciCommandTable
923 );
924 PciIo->Unmap (
925 PciIo,
926 AhciRegisters->MapCmdList
927 );
928 PciIo->FreeBuffer (
929 PciIo,
930 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandListSize),
931 AhciRegisters->AhciCmdList
932 );
933 PciIo->Unmap (
934 PciIo,
935 AhciRegisters->MapRFis
936 );
937 PciIo->FreeBuffer (
938 PciIo,
939 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxReceiveFisSize),
940 AhciRegisters->AhciRFis
941 );
942 }
943
944 //
945 // Disable this ATA host controller.
946 //
947 Status = PciIo->Attributes (
948 PciIo,
949 EfiPciIoAttributeOperationSupported,
950 0,
951 &Supports
952 );
953 if (!EFI_ERROR (Status)) {
954 Supports &= (UINT64)EFI_PCI_DEVICE_ENABLE;
955 PciIo->Attributes (
956 PciIo,
957 EfiPciIoAttributeOperationDisable,
958 Supports,
959 NULL
960 );
961 }
962
963 //
964 // Restore original PCI attributes
965 //
966 Status = PciIo->Attributes (
967 PciIo,
968 EfiPciIoAttributeOperationSet,
969 Instance->OriginalPciAttributes,
970 NULL
971 );
972 ASSERT_EFI_ERROR (Status);
973
974 FreePool (Instance);
975
976 return Status;
977 }
978
979 /**
980 Traverse the attached ATA devices list to find out the device to access.
981
982 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
983 @param[in] Port The port number of the ATA device to send the command.
984 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
985 If there is no port multiplier, then specify 0.
986 @param[in] DeviceType The device type of the ATA device.
987
988 @retval The pointer to the data structure of the device info to access.
989
990 **/
991 LIST_ENTRY *
992 EFIAPI
993 SearchDeviceInfoList (
994 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
995 IN UINT16 Port,
996 IN UINT16 PortMultiplier,
997 IN EFI_ATA_DEVICE_TYPE DeviceType
998 )
999 {
1000 EFI_ATA_DEVICE_INFO *DeviceInfo;
1001 LIST_ENTRY *Node;
1002
1003 Node = GetFirstNode (&Instance->DeviceList);
1004 while (!IsNull (&Instance->DeviceList, Node)) {
1005 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1006
1007 if ((DeviceInfo->Type == DeviceType) &&
1008 (Port == DeviceInfo->Port) &&
1009 (PortMultiplier == DeviceInfo->PortMultiplier)) {
1010 return Node;
1011 }
1012
1013 Node = GetNextNode (&Instance->DeviceList, Node);
1014 }
1015
1016 return NULL;
1017 }
1018
1019 /**
1020 Allocate device info data structure to contain device info.
1021 And insert the data structure to the tail of device list for tracing.
1022
1023 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1024 @param[in] Port The port number of the ATA device to send the command.
1025 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
1026 If there is no port multiplier, then specify 0.
1027 @param[in] DeviceType The device type of the ATA device.
1028 @param[in] IdentifyData The data buffer to store the output of the IDENTIFY cmd.
1029
1030 @retval EFI_SUCCESS Successfully insert the ata device to the tail of device list.
1031 @retval EFI_OUT_OF_RESOURCES Can not allocate enough resource for use.
1032
1033 **/
1034 EFI_STATUS
1035 EFIAPI
1036 CreateNewDeviceInfo (
1037 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
1038 IN UINT16 Port,
1039 IN UINT16 PortMultiplier,
1040 IN EFI_ATA_DEVICE_TYPE DeviceType,
1041 IN EFI_IDENTIFY_DATA *IdentifyData
1042 )
1043 {
1044 EFI_ATA_DEVICE_INFO *DeviceInfo;
1045
1046 DeviceInfo = AllocateZeroPool (sizeof (EFI_ATA_DEVICE_INFO));
1047
1048 if (DeviceInfo == NULL) {
1049 return EFI_OUT_OF_RESOURCES;
1050 }
1051
1052 DeviceInfo->Signature = ATA_ATAPI_DEVICE_SIGNATURE;
1053 DeviceInfo->Port = Port;
1054 DeviceInfo->PortMultiplier = PortMultiplier;
1055 DeviceInfo->Type = DeviceType;
1056
1057 if (IdentifyData != NULL) {
1058 DeviceInfo->IdentifyData = AllocateCopyPool (sizeof (EFI_IDENTIFY_DATA), IdentifyData);
1059 if (DeviceInfo->IdentifyData == NULL) {
1060 FreePool (DeviceInfo);
1061 return EFI_OUT_OF_RESOURCES;
1062 }
1063 }
1064
1065 InsertTailList (&Instance->DeviceList, &DeviceInfo->Link);
1066
1067 return EFI_SUCCESS;
1068 }
1069
1070 /**
1071 Destroy all attached ATA devices info.
1072
1073 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1074
1075 **/
1076 VOID
1077 EFIAPI
1078 DestroyDeviceInfoList (
1079 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
1080 )
1081 {
1082 EFI_ATA_DEVICE_INFO *DeviceInfo;
1083 LIST_ENTRY *Node;
1084
1085 Node = GetFirstNode (&Instance->DeviceList);
1086 while (!IsNull (&Instance->DeviceList, Node)) {
1087 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1088
1089 Node = GetNextNode (&Instance->DeviceList, Node);
1090
1091 RemoveEntryList (&DeviceInfo->Link);
1092 if (DeviceInfo->IdentifyData != NULL) {
1093 FreePool (DeviceInfo->IdentifyData);
1094 }
1095 FreePool (DeviceInfo);
1096 }
1097 }
1098
1099 /**
1100 Destroy all pending non blocking tasks.
1101
1102 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1103 @param[in] IsSigEvent Indicate whether signal the task event when remove the
1104 task.
1105
1106 **/
1107 VOID
1108 EFIAPI
1109 DestroyAsynTaskList (
1110 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
1111 IN BOOLEAN IsSigEvent
1112 )
1113 {
1114 LIST_ENTRY *Entry;
1115 LIST_ENTRY *DelEntry;
1116 ATA_NONBLOCK_TASK *Task;
1117 EFI_TPL OldTpl;
1118
1119 OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
1120 if (!IsListEmpty (&Instance->NonBlockingTaskList)) {
1121 //
1122 // Free the Subtask list.
1123 //
1124 for (Entry = (&Instance->NonBlockingTaskList)->ForwardLink;
1125 Entry != (&Instance->NonBlockingTaskList);
1126 ) {
1127 DelEntry = Entry;
1128 Entry = Entry->ForwardLink;
1129 Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (DelEntry);
1130
1131 RemoveEntryList (DelEntry);
1132 if (IsSigEvent) {
1133 Task->Packet->Asb->AtaStatus = 0x01;
1134 gBS->SignalEvent (Task->Event);
1135 }
1136 FreePool (Task);
1137 }
1138 }
1139 gBS->RestoreTPL (OldTpl);
1140 }
1141
1142 /**
1143 Enumerate all attached ATA devices at IDE mode or AHCI mode separately.
1144
1145 The function is designed to enumerate all attached ATA devices.
1146
1147 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1148
1149 @retval EFI_SUCCESS Successfully enumerate attached ATA devices.
1150 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
1151
1152 **/
1153 EFI_STATUS
1154 EFIAPI
1155 EnumerateAttachedDevice (
1156 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
1157 )
1158 {
1159 EFI_STATUS Status;
1160 PCI_TYPE00 PciData;
1161 UINT8 ClassCode;
1162
1163 Status = EFI_SUCCESS;
1164
1165 Status = Instance->PciIo->Pci.Read (
1166 Instance->PciIo,
1167 EfiPciIoWidthUint8,
1168 PCI_CLASSCODE_OFFSET,
1169 sizeof (PciData.Hdr.ClassCode),
1170 PciData.Hdr.ClassCode
1171 );
1172 ASSERT_EFI_ERROR (Status);
1173
1174 ClassCode = PciData.Hdr.ClassCode[1];
1175
1176 switch (ClassCode) {
1177 case PCI_CLASS_MASS_STORAGE_IDE :
1178 //
1179 // The ATA controller is working at IDE mode
1180 //
1181 Instance->Mode = EfiAtaIdeMode;
1182
1183 Status = IdeModeInitialization (Instance);
1184 if (EFI_ERROR (Status)) {
1185 Status = EFI_DEVICE_ERROR;
1186 goto Done;
1187 }
1188 break;
1189 case PCI_CLASS_MASS_STORAGE_SATADPA :
1190 //
1191 // The ATA controller is working at AHCI mode
1192 //
1193 Instance->Mode = EfiAtaAhciMode;
1194
1195 Status = AhciModeInitialization (Instance);
1196
1197 if (EFI_ERROR (Status)) {
1198 Status = EFI_DEVICE_ERROR;
1199 goto Done;
1200 }
1201
1202 break;
1203 default :
1204 Status = EFI_UNSUPPORTED;
1205 }
1206
1207 Done:
1208 return Status;
1209 }
1210
1211 /**
1212 Sends an ATA command to an ATA device that is attached to the ATA controller. This function
1213 supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,
1214 and the non-blocking I/O functionality is optional.
1215
1216 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1217 @param[in] Port The port number of the ATA device to send the command.
1218 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
1219 If there is no port multiplier, then specify 0.
1220 @param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port
1221 and PortMultiplierPort.
1222 @param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking
1223 I/O is performed. If Event is NULL, then blocking I/O is performed. If
1224 Event is not NULL and non blocking I/O is supported, then non-blocking
1225 I/O is performed, and Event will be signaled when the ATA command completes.
1226
1227 @retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands,
1228 InTransferLength bytes were transferred from InDataBuffer. For write and
1229 bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer.
1230 @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred
1231 is returned in InTransferLength. For write and bi-directional commands,
1232 OutTransferLength bytes were transferred by OutDataBuffer.
1233 @retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands
1234 already queued. The caller may retry again later.
1235 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command.
1236 @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA
1237 command was not sent, so no additional status information is available.
1238
1239 **/
1240 EFI_STATUS
1241 EFIAPI
1242 AtaPassThruPassThru (
1243 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1244 IN UINT16 Port,
1245 IN UINT16 PortMultiplierPort,
1246 IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,
1247 IN EFI_EVENT Event OPTIONAL
1248 )
1249 {
1250 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1251 LIST_ENTRY *Node;
1252 EFI_ATA_DEVICE_INFO *DeviceInfo;
1253 EFI_IDENTIFY_DATA *IdentifyData;
1254 UINT64 Capacity;
1255 UINT32 MaxSectorCount;
1256 ATA_NONBLOCK_TASK *Task;
1257 EFI_TPL OldTpl;
1258 UINT32 BlockSize;
1259
1260 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1261
1262 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {
1263 return EFI_INVALID_PARAMETER;
1264 }
1265
1266 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {
1267 return EFI_INVALID_PARAMETER;
1268 }
1269
1270 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->Asb, This->Mode->IoAlign)) {
1271 return EFI_INVALID_PARAMETER;
1272 }
1273
1274 Node = SearchDeviceInfoList (Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
1275
1276 if (Node == NULL) {
1277 Node = SearchDeviceInfoList(Instance, Port, PortMultiplierPort, EfiIdeCdrom);
1278 if (Node == NULL) {
1279 return EFI_INVALID_PARAMETER;
1280 }
1281 }
1282
1283 //
1284 // Check whether this device needs 48-bit addressing (ATAPI-6 ata device).
1285 // Per ATA-6 spec, word83: bit15 is zero and bit14 is one.
1286 // If bit10 is one, it means the ata device support 48-bit addressing.
1287 //
1288 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1289 IdentifyData = DeviceInfo->IdentifyData;
1290 MaxSectorCount = 0x100;
1291 if ((IdentifyData->AtaData.command_set_supported_83 & (BIT10 | BIT15 | BIT14)) == 0x4400) {
1292 Capacity = *((UINT64 *)IdentifyData->AtaData.maximum_lba_for_48bit_addressing);
1293 if (Capacity > 0xFFFFFFF) {
1294 //
1295 // Capacity exceeds 120GB. 48-bit addressing is really needed
1296 // In this case, the max sector count is 0x10000
1297 //
1298 MaxSectorCount = 0x10000;
1299 }
1300 }
1301
1302 BlockSize = 0x200;
1303 if ((IdentifyData->AtaData.phy_logic_sector_support & (BIT14 | BIT15)) == BIT14) {
1304 //
1305 // Check logical block size
1306 //
1307 if ((IdentifyData->AtaData.phy_logic_sector_support & BIT12) != 0) {
1308 BlockSize = (UINT32) (((IdentifyData->AtaData.logic_sector_size_hi << 16) | IdentifyData->AtaData.logic_sector_size_lo) * sizeof (UINT16));
1309 }
1310 }
1311
1312 //
1313 // convert the transfer length from sector count to byte.
1314 //
1315 if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&
1316 (Packet->InTransferLength != 0)) {
1317 Packet->InTransferLength = Packet->InTransferLength * BlockSize;
1318 }
1319
1320 //
1321 // convert the transfer length from sector count to byte.
1322 //
1323 if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&
1324 (Packet->OutTransferLength != 0)) {
1325 Packet->OutTransferLength = Packet->OutTransferLength * BlockSize;
1326 }
1327
1328 //
1329 // If the data buffer described by InDataBuffer/OutDataBuffer and InTransferLength/OutTransferLength
1330 // is too big to be transferred in a single command, then no data is transferred and EFI_BAD_BUFFER_SIZE
1331 // is returned.
1332 //
1333 if (((Packet->InTransferLength != 0) && (Packet->InTransferLength > MaxSectorCount * BlockSize)) ||
1334 ((Packet->OutTransferLength != 0) && (Packet->OutTransferLength > MaxSectorCount * BlockSize))) {
1335 return EFI_BAD_BUFFER_SIZE;
1336 }
1337
1338 //
1339 // For non-blocking mode, queue the Task into the list.
1340 //
1341 if (Event != NULL) {
1342 Task = AllocateZeroPool (sizeof (ATA_NONBLOCK_TASK));
1343 if (Task == NULL) {
1344 return EFI_OUT_OF_RESOURCES;
1345 }
1346
1347 Task->Signature = ATA_NONBLOCKING_TASK_SIGNATURE;
1348 Task->Port = Port;
1349 Task->PortMultiplier = PortMultiplierPort;
1350 Task->Packet = Packet;
1351 Task->Event = Event;
1352 Task->IsStart = FALSE;
1353 Task->RetryTimes = DivU64x32(Packet->Timeout, 1000) + 1;
1354 if (Packet->Timeout == 0) {
1355 Task->InfiniteWait = TRUE;
1356 } else {
1357 Task->InfiniteWait = FALSE;
1358 }
1359
1360 OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
1361 InsertTailList (&Instance->NonBlockingTaskList, &Task->Link);
1362 gBS->RestoreTPL (OldTpl);
1363
1364 return EFI_SUCCESS;
1365 } else {
1366 return AtaPassThruPassThruExecute (
1367 Port,
1368 PortMultiplierPort,
1369 Packet,
1370 Instance,
1371 NULL
1372 );
1373 }
1374 }
1375
1376 /**
1377 Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.
1378 These can either be the list of ports where ATA devices are actually present or the
1379 list of legal port numbers for the ATA controller. Regardless, the caller of this
1380 function must probe the port number returned to see if an ATA device is actually
1381 present at that location on the ATA controller.
1382
1383 The GetNextPort() function retrieves the port number on an ATA controller. If on input
1384 Port is 0xFFFF, then the port number of the first port on the ATA controller is returned
1385 in Port and EFI_SUCCESS is returned.
1386
1387 If Port is a port number that was returned on a previous call to GetNextPort(), then the
1388 port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS
1389 is returned. If Port is not 0xFFFF and Port was not returned on a previous call to
1390 GetNextPort(), then EFI_INVALID_PARAMETER is returned.
1391
1392 If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is
1393 returned.
1394
1395 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1396 @param[in, out] Port On input, a pointer to the port number on the ATA controller.
1397 On output, a pointer to the next port number on the ATA
1398 controller. An input value of 0xFFFF retrieves the first port
1399 number on the ATA controller.
1400
1401 @retval EFI_SUCCESS The next port number on the ATA controller was returned in Port.
1402 @retval EFI_NOT_FOUND There are no more ports on this ATA controller.
1403 @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call
1404 to GetNextPort().
1405
1406 **/
1407 EFI_STATUS
1408 EFIAPI
1409 AtaPassThruGetNextPort (
1410 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1411 IN OUT UINT16 *Port
1412 )
1413 {
1414 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1415 LIST_ENTRY *Node;
1416 EFI_ATA_DEVICE_INFO *DeviceInfo;
1417
1418 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1419
1420 if (Port == NULL) {
1421 return EFI_INVALID_PARAMETER;
1422 }
1423
1424 if (*Port == 0xFFFF) {
1425 //
1426 // If the Port is all 0xFF's, start to traverse the device list from the beginning
1427 //
1428 Node = GetFirstNode (&Instance->DeviceList);
1429
1430 while (!IsNull (&Instance->DeviceList, Node)) {
1431 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1432
1433 if (DeviceInfo->Type == EfiIdeHarddisk) {
1434 *Port = DeviceInfo->Port;
1435 goto Exit;
1436 }
1437
1438 Node = GetNextNode (&Instance->DeviceList, Node);
1439 }
1440
1441 return EFI_NOT_FOUND;
1442 } else if (*Port == Instance->PreviousPort) {
1443 Node = GetFirstNode (&Instance->DeviceList);
1444
1445 while (!IsNull (&Instance->DeviceList, Node)) {
1446 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1447
1448 if ((DeviceInfo->Type == EfiIdeHarddisk) &&
1449 (DeviceInfo->Port > *Port)){
1450 *Port = DeviceInfo->Port;
1451 goto Exit;
1452 }
1453
1454 Node = GetNextNode (&Instance->DeviceList, Node);
1455 }
1456
1457 return EFI_NOT_FOUND;
1458 } else {
1459 //
1460 // Port is not equal to 0xFFFF and also not equal to previous return value
1461 //
1462 return EFI_INVALID_PARAMETER;
1463 }
1464
1465 Exit:
1466 //
1467 // Update the PreviousPort and PreviousPortMultiplier.
1468 //
1469 Instance->PreviousPort = *Port;
1470
1471 return EFI_SUCCESS;
1472 }
1473
1474 /**
1475 Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA
1476 controller. These can either be the list of port multiplier ports where ATA devices are actually
1477 present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this
1478 function must probe the port number and port multiplier port number returned to see if an ATA
1479 device is actually present.
1480
1481 The GetNextDevice() function retrieves the port multiplier port number of an ATA device
1482 present on a port of an ATA controller.
1483
1484 If PortMultiplierPort points to a port multiplier port number value that was returned on a
1485 previous call to GetNextDevice(), then the port multiplier port number of the next ATA device
1486 on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is
1487 returned.
1488
1489 If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first
1490 ATA device on port of the ATA controller is returned in PortMultiplierPort and
1491 EFI_SUCCESS is returned.
1492
1493 If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort
1494 was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER
1495 is returned.
1496
1497 If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of
1498 the ATA controller, then EFI_NOT_FOUND is returned.
1499
1500 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1501 @param[in] Port The port number present on the ATA controller.
1502 @param[in, out] PortMultiplierPort On input, a pointer to the port multiplier port number of an
1503 ATA device present on the ATA controller.
1504 If on input a PortMultiplierPort of 0xFFFF is specified,
1505 then the port multiplier port number of the first ATA device
1506 is returned. On output, a pointer to the port multiplier port
1507 number of the next ATA device present on an ATA controller.
1508
1509 @retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port
1510 of the ATA controller was returned in PortMultiplierPort.
1511 @retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller.
1512 @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not
1513 returned on a previous call to GetNextDevice().
1514
1515 **/
1516 EFI_STATUS
1517 EFIAPI
1518 AtaPassThruGetNextDevice (
1519 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1520 IN UINT16 Port,
1521 IN OUT UINT16 *PortMultiplierPort
1522 )
1523 {
1524 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1525 LIST_ENTRY *Node;
1526 EFI_ATA_DEVICE_INFO *DeviceInfo;
1527
1528 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1529
1530 if (PortMultiplierPort == NULL) {
1531 return EFI_INVALID_PARAMETER;
1532 }
1533
1534 if (*PortMultiplierPort == 0xFFFF) {
1535 //
1536 // If the PortMultiplierPort is all 0xFF's, start to traverse the device list from the beginning
1537 //
1538 Node = GetFirstNode (&Instance->DeviceList);
1539
1540 while (!IsNull (&Instance->DeviceList, Node)) {
1541 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1542
1543 if ((DeviceInfo->Type == EfiIdeHarddisk) &&
1544 (DeviceInfo->Port == Port)){
1545 *PortMultiplierPort = DeviceInfo->PortMultiplier;
1546 goto Exit;
1547 }
1548
1549 Node = GetNextNode (&Instance->DeviceList, Node);
1550 }
1551
1552 return EFI_NOT_FOUND;
1553 } else if (*PortMultiplierPort == Instance->PreviousPortMultiplier) {
1554 Node = GetFirstNode (&Instance->DeviceList);
1555
1556 while (!IsNull (&Instance->DeviceList, Node)) {
1557 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1558
1559 if ((DeviceInfo->Type == EfiIdeHarddisk) &&
1560 (DeviceInfo->Port == Port) &&
1561 (DeviceInfo->PortMultiplier > *PortMultiplierPort)){
1562 *PortMultiplierPort = DeviceInfo->PortMultiplier;
1563 goto Exit;
1564 }
1565
1566 Node = GetNextNode (&Instance->DeviceList, Node);
1567 }
1568
1569 return EFI_NOT_FOUND;
1570 } else {
1571 //
1572 // PortMultiplierPort is not equal to 0xFFFF and also not equal to previous return value
1573 //
1574 return EFI_INVALID_PARAMETER;
1575 }
1576
1577 Exit:
1578 //
1579 // Update the PreviousPort and PreviousPortMultiplier.
1580 //
1581 Instance->PreviousPortMultiplier = *PortMultiplierPort;
1582
1583 return EFI_SUCCESS;
1584 }
1585
1586 /**
1587 Used to allocate and build a device path node for an ATA device on an ATA controller.
1588
1589 The BuildDevicePath() function allocates and builds a single device node for the ATA
1590 device specified by Port and PortMultiplierPort. If the ATA device specified by Port and
1591 PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned.
1592 If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough
1593 resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned.
1594
1595 Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of
1596 DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort,
1597 and EFI_SUCCESS is returned.
1598
1599 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1600 @param[in] Port Port specifies the port number of the ATA device for which a
1601 device path node is to be allocated and built.
1602 @param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a
1603 device path node is to be allocated and built. If there is no
1604 port multiplier, then specify 0.
1605 @param[in, out] DevicePath A pointer to a single device path node that describes the ATA
1606 device specified by Port and PortMultiplierPort. This function
1607 is responsible for allocating the buffer DevicePath with the
1608 boot service AllocatePool(). It is the caller's responsibility
1609 to free DevicePath when the caller is finished with DevicePath.
1610 @retval EFI_SUCCESS The device path node that describes the ATA device specified by
1611 Port and PortMultiplierPort was allocated and returned in DevicePath.
1612 @retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not
1613 exist on the ATA controller.
1614 @retval EFI_INVALID_PARAMETER DevicePath is NULL.
1615 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.
1616
1617 **/
1618 EFI_STATUS
1619 EFIAPI
1620 AtaPassThruBuildDevicePath (
1621 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1622 IN UINT16 Port,
1623 IN UINT16 PortMultiplierPort,
1624 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
1625 )
1626 {
1627 EFI_DEV_PATH *DevicePathNode;
1628 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1629 LIST_ENTRY *Node;
1630
1631 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1632
1633 //
1634 // Validate parameters passed in.
1635 //
1636 if (DevicePath == NULL) {
1637 return EFI_INVALID_PARAMETER;
1638 }
1639
1640 Node = SearchDeviceInfoList(Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
1641 if (Node == NULL) {
1642 return EFI_NOT_FOUND;
1643 }
1644
1645 if (Instance->Mode == EfiAtaIdeMode) {
1646 DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);
1647 if (DevicePathNode == NULL) {
1648 return EFI_OUT_OF_RESOURCES;
1649 }
1650 DevicePathNode->Atapi.PrimarySecondary = (UINT8) Port;
1651 DevicePathNode->Atapi.SlaveMaster = (UINT8) PortMultiplierPort;
1652 DevicePathNode->Atapi.Lun = 0;
1653 } else {
1654 DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);
1655 if (DevicePathNode == NULL) {
1656 return EFI_OUT_OF_RESOURCES;
1657 }
1658
1659 DevicePathNode->Sata.HBAPortNumber = Port;
1660 DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplierPort;
1661 DevicePathNode->Sata.Lun = 0;
1662 }
1663
1664 *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;
1665
1666 return EFI_SUCCESS;
1667 }
1668
1669 /**
1670 Used to translate a device path node to a port number and port multiplier port number.
1671
1672 The GetDevice() function determines the port and port multiplier port number associated with
1673 the ATA device described by DevicePath. If DevicePath is a device path node type that the
1674 ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents
1675 DevicePath into a port number and port multiplier port number.
1676
1677 If this translation is successful, then that port number and port multiplier port number are returned
1678 in Port and PortMultiplierPort, and EFI_SUCCESS is returned.
1679
1680 If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned.
1681
1682 If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then
1683 EFI_UNSUPPORTED is returned.
1684
1685 If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not
1686 a valid translation from DevicePath to a port number and port multiplier port number, then
1687 EFI_NOT_FOUND is returned.
1688
1689 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1690 @param[in] DevicePath A pointer to the device path node that describes an ATA device on the
1691 ATA controller.
1692 @param[out] Port On return, points to the port number of an ATA device on the ATA controller.
1693 @param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device
1694 on the ATA controller.
1695
1696 @retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier
1697 port number, and they were returned in Port and PortMultiplierPort.
1698 @retval EFI_INVALID_PARAMETER DevicePath is NULL.
1699 @retval EFI_INVALID_PARAMETER Port is NULL.
1700 @retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL.
1701 @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath.
1702 @retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier
1703 port number does not exist.
1704 **/
1705 EFI_STATUS
1706 EFIAPI
1707 AtaPassThruGetDevice (
1708 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1709 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
1710 OUT UINT16 *Port,
1711 OUT UINT16 *PortMultiplierPort
1712 )
1713 {
1714 EFI_DEV_PATH *DevicePathNode;
1715 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1716 LIST_ENTRY *Node;
1717
1718 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1719
1720 //
1721 // Validate parameters passed in.
1722 //
1723 if (DevicePath == NULL || Port == NULL || PortMultiplierPort == NULL) {
1724 return EFI_INVALID_PARAMETER;
1725 }
1726
1727 //
1728 // Check whether the DevicePath belongs to SCSI_DEVICE_PATH or ATAPI_DEVICE_PATH
1729 //
1730 if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
1731 ((DevicePath->SubType != MSG_SATA_DP) &&
1732 (DevicePath->SubType != MSG_ATAPI_DP)) ||
1733 ((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&
1734 (DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {
1735 return EFI_UNSUPPORTED;
1736 }
1737
1738 DevicePathNode = (EFI_DEV_PATH *) DevicePath;
1739
1740 if (Instance->Mode == EfiAtaIdeMode) {
1741 *Port = DevicePathNode->Atapi.PrimarySecondary;
1742 *PortMultiplierPort = DevicePathNode->Atapi.SlaveMaster;
1743 } else {
1744 *Port = DevicePathNode->Sata.HBAPortNumber;
1745 *PortMultiplierPort = DevicePathNode->Sata.PortMultiplierPortNumber;
1746 }
1747
1748 Node = SearchDeviceInfoList(Instance, *Port, *PortMultiplierPort, EfiIdeHarddisk);
1749
1750 if (Node == NULL) {
1751 return EFI_NOT_FOUND;
1752 }
1753
1754 return EFI_SUCCESS;
1755 }
1756
1757 /**
1758 Resets a specific port on the ATA controller. This operation also resets all the ATA devices
1759 connected to the port.
1760
1761 The ResetChannel() function resets an a specific port on an ATA controller. This operation
1762 resets all the ATA devices connected to that port. If this ATA controller does not support
1763 a reset port operation, then EFI_UNSUPPORTED is returned.
1764
1765 If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is
1766 returned.
1767
1768 If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned.
1769
1770 If the port reset operation is completed, then EFI_SUCCESS is returned.
1771
1772 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1773 @param[in] Port The port number on the ATA controller.
1774
1775 @retval EFI_SUCCESS The ATA controller port was reset.
1776 @retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation.
1777 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port.
1778 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port.
1779
1780 **/
1781 EFI_STATUS
1782 EFIAPI
1783 AtaPassThruResetPort (
1784 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1785 IN UINT16 Port
1786 )
1787 {
1788 //
1789 // Return success directly then upper layer driver could think reset port operation is done.
1790 //
1791 return EFI_SUCCESS;
1792 }
1793
1794 /**
1795 Resets an ATA device that is connected to an ATA controller.
1796
1797 The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort.
1798 If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is
1799 returned.
1800
1801 If Port or PortMultiplierPort are not in a valid range for this ATA controller, then
1802 EFI_INVALID_PARAMETER is returned.
1803
1804 If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR
1805 is returned.
1806
1807 If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is
1808 returned.
1809
1810 If the device reset operation is completed, then EFI_SUCCESS is returned.
1811
1812 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1813 @param[in] Port Port represents the port number of the ATA device to be reset.
1814 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset.
1815 If there is no port multiplier, then specify 0.
1816 @retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset.
1817 @retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation.
1818 @retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid.
1819 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device
1820 specified by Port and PortMultiplierPort.
1821 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device
1822 specified by Port and PortMultiplierPort.
1823
1824 **/
1825 EFI_STATUS
1826 EFIAPI
1827 AtaPassThruResetDevice (
1828 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1829 IN UINT16 Port,
1830 IN UINT16 PortMultiplierPort
1831 )
1832 {
1833 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1834 LIST_ENTRY *Node;
1835
1836 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1837
1838 Node = SearchDeviceInfoList (Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
1839
1840 if (Node == NULL) {
1841 return EFI_INVALID_PARAMETER;
1842 }
1843
1844 //
1845 // Return success directly then upper layer driver could think reset device operation is done.
1846 //
1847 return EFI_SUCCESS;
1848 }
1849
1850 /**
1851 Sumbit ATAPI request sense command.
1852
1853 @param[in] This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
1854 @param[in] Target The Target is an array of size TARGET_MAX_BYTES and it represents
1855 the id of the SCSI device to send the SCSI Request Packet. Each
1856 transport driver may choose to utilize a subset of this size to suit the needs
1857 of transport target representation. For example, a Fibre Channel driver
1858 may use only 8 bytes (WWN) to represent an FC target.
1859 @param[in] Lun The LUN of the SCSI device to send the SCSI Request Packet.
1860 @param[in] SenseData A pointer to store sense data.
1861 @param[in] SenseDataLength The sense data length.
1862 @param[in] Timeout The timeout value to execute this cmd, uses 100ns as a unit.
1863
1864 @retval EFI_SUCCESS Send out the ATAPI packet command successfully.
1865 @retval EFI_DEVICE_ERROR The device failed to send data.
1866
1867 **/
1868 EFI_STATUS
1869 EFIAPI
1870 AtaPacketRequestSense (
1871 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
1872 IN UINT8 *Target,
1873 IN UINT64 Lun,
1874 IN VOID *SenseData,
1875 IN UINT8 SenseDataLength,
1876 IN UINT64 Timeout
1877 )
1878 {
1879 EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET Packet;
1880 UINT8 Cdb[12];
1881 EFI_STATUS Status;
1882
1883 ZeroMem (&Packet, sizeof (EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));
1884 ZeroMem (Cdb, 12);
1885
1886 Cdb[0] = ATA_CMD_REQUEST_SENSE;
1887 Cdb[4] = SenseDataLength;
1888
1889 Packet.Timeout = Timeout;
1890 Packet.Cdb = Cdb;
1891 Packet.CdbLength = 12;
1892 Packet.DataDirection = EFI_EXT_SCSI_DATA_DIRECTION_READ;
1893 Packet.InDataBuffer = SenseData;
1894 Packet.InTransferLength = SenseDataLength;
1895
1896 Status = ExtScsiPassThruPassThru (This, Target, Lun, &Packet, NULL);
1897
1898 return Status;
1899 }
1900
1901 /**
1902 Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function
1903 supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the
1904 nonblocking I/O functionality is optional.
1905
1906 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
1907 @param Target The Target is an array of size TARGET_MAX_BYTES and it represents
1908 the id of the SCSI device to send the SCSI Request Packet. Each
1909 transport driver may choose to utilize a subset of this size to suit the needs
1910 of transport target representation. For example, a Fibre Channel driver
1911 may use only 8 bytes (WWN) to represent an FC target.
1912 @param Lun The LUN of the SCSI device to send the SCSI Request Packet.
1913 @param Packet A pointer to the SCSI Request Packet to send to the SCSI device
1914 specified by Target and Lun.
1915 @param Event If nonblocking I/O is not supported then Event is ignored, and blocking
1916 I/O is performed. If Event is NULL, then blocking I/O is performed. If
1917 Event is not NULL and non blocking I/O is supported, then
1918 nonblocking I/O is performed, and Event will be signaled when the
1919 SCSI Request Packet completes.
1920
1921 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional
1922 commands, InTransferLength bytes were transferred from
1923 InDataBuffer. For write and bi-directional commands,
1924 OutTransferLength bytes were transferred by
1925 OutDataBuffer.
1926 @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that
1927 could be transferred is returned in InTransferLength. For write
1928 and bi-directional commands, OutTransferLength bytes were
1929 transferred by OutDataBuffer.
1930 @retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
1931 SCSI Request Packets already queued. The caller may retry again later.
1932 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request
1933 Packet.
1934 @retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid.
1935 @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported
1936 by the host adapter. This includes the case of Bi-directional SCSI
1937 commands not supported by the implementation. The SCSI Request
1938 Packet was not sent, so no additional status information is available.
1939 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
1940
1941 **/
1942 EFI_STATUS
1943 EFIAPI
1944 ExtScsiPassThruPassThru (
1945 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
1946 IN UINT8 *Target,
1947 IN UINT64 Lun,
1948 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
1949 IN EFI_EVENT Event OPTIONAL
1950 )
1951 {
1952 EFI_STATUS Status;
1953 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1954 UINT8 Port;
1955 UINT8 PortMultiplier;
1956 EFI_ATA_HC_WORK_MODE Mode;
1957 LIST_ENTRY *Node;
1958 EFI_ATA_DEVICE_INFO *DeviceInfo;
1959 BOOLEAN SenseReq;
1960 EFI_SCSI_SENSE_DATA *PtrSenseData;
1961 UINTN SenseDataLen;
1962 EFI_STATUS SenseStatus;
1963
1964 SenseDataLen = 0;
1965 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1966
1967 if ((Packet == NULL) || (Packet->Cdb == NULL)) {
1968 return EFI_INVALID_PARAMETER;
1969 }
1970
1971 //
1972 // Don't support variable length CDB
1973 //
1974 if ((Packet->CdbLength != 6) && (Packet->CdbLength != 10) &&
1975 (Packet->CdbLength != 12) && (Packet->CdbLength != 16)) {
1976 return EFI_INVALID_PARAMETER;
1977 }
1978
1979 if ((Packet->SenseDataLength != 0) && (Packet->SenseData == NULL)) {
1980 return EFI_INVALID_PARAMETER;
1981 }
1982
1983 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {
1984 return EFI_INVALID_PARAMETER;
1985 }
1986
1987 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {
1988 return EFI_INVALID_PARAMETER;
1989 }
1990
1991 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->SenseData, This->Mode->IoAlign)) {
1992 return EFI_INVALID_PARAMETER;
1993 }
1994
1995 //
1996 // For ATAPI device, doesn't support multiple LUN device.
1997 //
1998 if (Lun != 0) {
1999 return EFI_INVALID_PARAMETER;
2000 }
2001
2002 //
2003 // The layout of Target array:
2004 // ________________________________________________________________________
2005 // | Byte 0 | Byte 1 | ... | TARGET_MAX_BYTES - 1 |
2006 // |_____________________|_____________________|_____|______________________|
2007 // | | The port multiplier | | |
2008 // | The port number | port number | N/A | N/A |
2009 // |_____________________|_____________________|_____|______________________|
2010 //
2011 // For ATAPI device, 2 bytes is enough to represent the location of SCSI device.
2012 //
2013 Port = Target[0];
2014 PortMultiplier = Target[1];
2015
2016 Node = SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom);
2017 if (Node == NULL) {
2018 return EFI_INVALID_PARAMETER;
2019 }
2020
2021 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2022
2023 //
2024 // ATA_CMD_IDENTIFY_DEVICE cmd is a ATA cmd but not a SCSI cmd.
2025 // Normally it should NOT be passed down through ExtScsiPassThru protocol interface.
2026 // But to response EFI_DISK_INFO.Identify() request from ScsiDisk, we should handle this command.
2027 //
2028 if (*((UINT8*)Packet->Cdb) == ATA_CMD_IDENTIFY_DEVICE) {
2029 CopyMem (Packet->InDataBuffer, DeviceInfo->IdentifyData, sizeof (EFI_IDENTIFY_DATA));
2030 //
2031 // For IDENTIFY DEVICE cmd, we don't need to get sense data.
2032 //
2033 Packet->SenseDataLength = 0;
2034 return EFI_SUCCESS;
2035 }
2036
2037 Mode = Instance->Mode;
2038 switch (Mode) {
2039 case EfiAtaIdeMode:
2040 //
2041 // Reassign IDE mode io port registers' base addresses
2042 //
2043 Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);
2044
2045 if (EFI_ERROR (Status)) {
2046 return Status;
2047 }
2048
2049 Status = AtaPacketCommandExecute (Instance->PciIo, &Instance->IdeRegisters[Port], Port, PortMultiplier, Packet);
2050 break;
2051 case EfiAtaAhciMode:
2052 Status = AhciPacketCommandExecute (Instance->PciIo, &Instance->AhciRegisters, Port, PortMultiplier, Packet);
2053 break;
2054 default :
2055 Status = EFI_DEVICE_ERROR;
2056 break;
2057 }
2058
2059 //
2060 // If the cmd doesn't get executed correctly, then check sense data.
2061 //
2062 if (EFI_ERROR (Status) && (Packet->SenseDataLength != 0) && (*((UINT8*)Packet->Cdb) != ATA_CMD_REQUEST_SENSE)) {
2063 PtrSenseData = AllocateAlignedPages (EFI_SIZE_TO_PAGES (sizeof (EFI_SCSI_SENSE_DATA)), This->Mode->IoAlign);
2064 if (PtrSenseData == NULL) {
2065 return EFI_DEVICE_ERROR;
2066 }
2067
2068 for (SenseReq = TRUE; SenseReq;) {
2069 SenseStatus = AtaPacketRequestSense (
2070 This,
2071 Target,
2072 Lun,
2073 PtrSenseData,
2074 sizeof (EFI_SCSI_SENSE_DATA),
2075 Packet->Timeout
2076 );
2077 if (EFI_ERROR (SenseStatus)) {
2078 break;
2079 }
2080
2081 CopyMem ((UINT8*)Packet->SenseData + SenseDataLen, PtrSenseData, sizeof (EFI_SCSI_SENSE_DATA));
2082 SenseDataLen += sizeof (EFI_SCSI_SENSE_DATA);
2083
2084 //
2085 // no more sense key or number of sense keys exceeds predefined,
2086 // skip the loop.
2087 //
2088 if ((PtrSenseData->Sense_Key == EFI_SCSI_SK_NO_SENSE) ||
2089 (SenseDataLen + sizeof (EFI_SCSI_SENSE_DATA) > Packet->SenseDataLength)) {
2090 SenseReq = FALSE;
2091 }
2092 }
2093 FreeAlignedPages (PtrSenseData, EFI_SIZE_TO_PAGES (sizeof (EFI_SCSI_SENSE_DATA)));
2094 }
2095 //
2096 // Update the SenseDataLength field to the data length received.
2097 //
2098 Packet->SenseDataLength = (UINT8)SenseDataLen;
2099 return Status;
2100 }
2101
2102 /**
2103 Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These
2104 can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal
2105 Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the
2106 Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI
2107 channel.
2108
2109 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2110 @param Target On input, a pointer to the Target ID (an array of size
2111 TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
2112 On output, a pointer to the Target ID (an array of
2113 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
2114 channel. An input value of 0xF(all bytes in the array are 0xF) in the
2115 Target array retrieves the Target ID of the first SCSI device present on a
2116 SCSI channel.
2117 @param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI
2118 channel. On output, a pointer to the LUN of the next SCSI device present
2119 on a SCSI channel.
2120
2121 @retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI
2122 channel was returned in Target and Lun.
2123 @retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were
2124 not returned on a previous call to GetNextTargetLun().
2125 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
2126
2127 **/
2128 EFI_STATUS
2129 EFIAPI
2130 ExtScsiPassThruGetNextTargetLun (
2131 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2132 IN OUT UINT8 **Target,
2133 IN OUT UINT64 *Lun
2134 )
2135 {
2136 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2137 LIST_ENTRY *Node;
2138 EFI_ATA_DEVICE_INFO *DeviceInfo;
2139 UINT8 *Target8;
2140 UINT16 *Target16;
2141
2142 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2143
2144 if (Target == NULL || Lun == NULL) {
2145 return EFI_INVALID_PARAMETER;
2146 }
2147
2148 if (*Target == NULL) {
2149 return EFI_INVALID_PARAMETER;
2150 }
2151
2152 Target8 = *Target;
2153 Target16 = (UINT16 *)*Target;
2154
2155 if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {
2156 //
2157 // For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.
2158 // So the higher bytes in Target array should be 0xFF.
2159 //
2160 if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {
2161 return EFI_INVALID_PARAMETER;
2162 }
2163
2164 //
2165 // When Target is not all 0xFF's, compare 2 least significant bytes with
2166 // previous target id to see if it is returned by previous call.
2167 //
2168 if ((*Target16 != Instance->PreviousTargetId) ||
2169 (*Lun != Instance->PreviousLun)) {
2170 return EFI_INVALID_PARAMETER;
2171 }
2172
2173 //
2174 // Traverse the whole device list to find the next cdrom closed to
2175 // the device signified by Target[0] and Target[1].
2176 //
2177 // Note that we here use a tricky way to find the next cdrom :
2178 // All ata devices are detected and inserted into the device list
2179 // sequentially.
2180 //
2181 Node = GetFirstNode (&Instance->DeviceList);
2182
2183 while (!IsNull (&Instance->DeviceList, Node)) {
2184 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2185
2186 if ((DeviceInfo->Type == EfiIdeCdrom) &&
2187 ((Target8[0] < DeviceInfo->Port) ||
2188 ((Target8[0] == DeviceInfo->Port) &&
2189 (Target8[1] < DeviceInfo->PortMultiplier)))) {
2190 Target8[0] = (UINT8)DeviceInfo->Port;
2191 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2192 goto Exit;
2193 }
2194
2195 Node = GetNextNode (&Instance->DeviceList, Node);
2196 }
2197
2198 return EFI_NOT_FOUND;
2199 } else {
2200 //
2201 // If the array is all 0xFF's, start to traverse the device list from the beginning
2202 //
2203 Node = GetFirstNode (&Instance->DeviceList);
2204 while (!IsNull (&Instance->DeviceList, Node)) {
2205 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2206
2207 if (DeviceInfo->Type == EfiIdeCdrom) {
2208 Target8[0] = (UINT8)DeviceInfo->Port;
2209 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2210 goto Exit;
2211 }
2212
2213 Node = GetNextNode (&Instance->DeviceList, Node);
2214 }
2215
2216 return EFI_NOT_FOUND;
2217 }
2218
2219 Exit:
2220 *Lun = 0;
2221
2222 //
2223 // Update the PreviousTargetId.
2224 //
2225 Instance->PreviousTargetId = *Target16;
2226 Instance->PreviousLun = *Lun;
2227
2228 return EFI_SUCCESS;
2229 }
2230
2231 /**
2232 Used to allocate and build a device path node for a SCSI device on a SCSI channel.
2233
2234 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2235 @param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the
2236 Target ID of the SCSI device for which a device path node is to be
2237 allocated and built. Transport drivers may chose to utilize a subset of
2238 this size to suit the representation of targets. For example, a Fibre
2239 Channel driver may use only 8 bytes (WWN) in the array to represent a
2240 FC target.
2241 @param Lun The LUN of the SCSI device for which a device path node is to be
2242 allocated and built.
2243 @param DevicePath A pointer to a single device path node that describes the SCSI device
2244 specified by Target and Lun. This function is responsible for
2245 allocating the buffer DevicePath with the boot service
2246 AllocatePool(). It is the caller's responsibility to free
2247 DevicePath when the caller is finished with DevicePath.
2248
2249 @retval EFI_SUCCESS The device path node that describes the SCSI device specified by
2250 Target and Lun was allocated and returned in
2251 DevicePath.
2252 @retval EFI_INVALID_PARAMETER DevicePath is NULL.
2253 @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist
2254 on the SCSI channel.
2255 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.
2256
2257 **/
2258 EFI_STATUS
2259 EFIAPI
2260 ExtScsiPassThruBuildDevicePath (
2261 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2262 IN UINT8 *Target,
2263 IN UINT64 Lun,
2264 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
2265 )
2266 {
2267 EFI_DEV_PATH *DevicePathNode;
2268 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2269 UINT8 Port;
2270 UINT8 PortMultiplier;
2271
2272 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2273
2274 Port = Target[0];
2275 PortMultiplier = Target[1];
2276
2277 //
2278 // Validate parameters passed in.
2279 //
2280 if (DevicePath == NULL) {
2281 return EFI_INVALID_PARAMETER;
2282 }
2283
2284 //
2285 // can not build device path for the SCSI Host Controller.
2286 //
2287 if (Lun != 0) {
2288 return EFI_NOT_FOUND;
2289 }
2290
2291 if (SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom) == NULL) {
2292 return EFI_NOT_FOUND;
2293 }
2294
2295 if (Instance->Mode == EfiAtaIdeMode) {
2296 DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);
2297 if (DevicePathNode == NULL) {
2298 return EFI_OUT_OF_RESOURCES;
2299 }
2300
2301 DevicePathNode->Atapi.PrimarySecondary = Port;
2302 DevicePathNode->Atapi.SlaveMaster = PortMultiplier;
2303 DevicePathNode->Atapi.Lun = (UINT16) Lun;
2304 } else {
2305 DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);
2306 if (DevicePathNode == NULL) {
2307 return EFI_OUT_OF_RESOURCES;
2308 }
2309
2310 DevicePathNode->Sata.HBAPortNumber = Port;
2311 DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplier;
2312 DevicePathNode->Sata.Lun = (UINT16) Lun;
2313 }
2314
2315 *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;
2316
2317 return EFI_SUCCESS;
2318 }
2319
2320 /**
2321 Used to translate a device path node to a Target ID and LUN.
2322
2323 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2324 @param DevicePath A pointer to a single device path node that describes the SCSI device
2325 on the SCSI channel.
2326 @param Target A pointer to the Target Array which represents the ID of a SCSI device
2327 on the SCSI channel.
2328 @param Lun A pointer to the LUN of a SCSI device on the SCSI channel.
2329
2330 @retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and
2331 LUN, and they were returned in Target and Lun.
2332 @retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL.
2333 @retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN
2334 does not exist.
2335 @retval EFI_UNSUPPORTED This driver does not support the device path node type in
2336 DevicePath.
2337
2338 **/
2339 EFI_STATUS
2340 EFIAPI
2341 ExtScsiPassThruGetTargetLun (
2342 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2343 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
2344 OUT UINT8 **Target,
2345 OUT UINT64 *Lun
2346 )
2347 {
2348 EFI_DEV_PATH *DevicePathNode;
2349 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2350 LIST_ENTRY *Node;
2351
2352 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2353
2354 //
2355 // Validate parameters passed in.
2356 //
2357 if (DevicePath == NULL || Target == NULL || Lun == NULL) {
2358 return EFI_INVALID_PARAMETER;
2359 }
2360
2361 if (*Target == NULL) {
2362 return EFI_INVALID_PARAMETER;
2363 }
2364 //
2365 // Check whether the DevicePath belongs to SCSI_DEVICE_PATH
2366 //
2367 if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
2368 ((DevicePath->SubType != MSG_ATAPI_DP) &&
2369 (DevicePath->SubType != MSG_SATA_DP)) ||
2370 ((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&
2371 (DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {
2372 return EFI_UNSUPPORTED;
2373 }
2374
2375 SetMem (*Target, TARGET_MAX_BYTES, 0xFF);
2376
2377 DevicePathNode = (EFI_DEV_PATH *) DevicePath;
2378
2379 if (Instance->Mode == EfiAtaIdeMode) {
2380 (*Target)[0] = (UINT8) DevicePathNode->Atapi.PrimarySecondary;
2381 (*Target)[1] = (UINT8) DevicePathNode->Atapi.SlaveMaster;
2382 *Lun = (UINT8) DevicePathNode->Atapi.Lun;
2383 } else {
2384 (*Target)[0] = (UINT8) DevicePathNode->Sata.HBAPortNumber;
2385 (*Target)[1] = (UINT8) DevicePathNode->Sata.PortMultiplierPortNumber;
2386 *Lun = (UINT8) DevicePathNode->Sata.Lun;
2387 }
2388
2389 Node = SearchDeviceInfoList(Instance, (*Target)[0], (*Target)[1], EfiIdeCdrom);
2390
2391 if (Node == NULL) {
2392 return EFI_NOT_FOUND;
2393 }
2394
2395 if (*Lun != 0) {
2396 return EFI_NOT_FOUND;
2397 }
2398
2399 return EFI_SUCCESS;
2400 }
2401
2402 /**
2403 Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel.
2404
2405 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2406
2407 @retval EFI_SUCCESS The SCSI channel was reset.
2408 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel.
2409 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel.
2410 @retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation.
2411
2412 **/
2413 EFI_STATUS
2414 EFIAPI
2415 ExtScsiPassThruResetChannel (
2416 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
2417 )
2418 {
2419 //
2420 // Return success directly then upper layer driver could think reset channel operation is done.
2421 //
2422 return EFI_SUCCESS;
2423 }
2424
2425 /**
2426 Resets a SCSI logical unit that is connected to a SCSI channel.
2427
2428 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2429 @param Target The Target is an array of size TARGET_MAX_BYTE and it represents the
2430 target port ID of the SCSI device containing the SCSI logical unit to
2431 reset. Transport drivers may chose to utilize a subset of this array to suit
2432 the representation of their targets.
2433 @param Lun The LUN of the SCSI device to reset.
2434
2435 @retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset.
2436 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.
2437 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device
2438 specified by Target and Lun.
2439 @retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation.
2440 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device
2441 specified by Target and Lun.
2442
2443 **/
2444 EFI_STATUS
2445 EFIAPI
2446 ExtScsiPassThruResetTargetLun (
2447 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2448 IN UINT8 *Target,
2449 IN UINT64 Lun
2450 )
2451 {
2452 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2453 LIST_ENTRY *Node;
2454 UINT8 Port;
2455 UINT8 PortMultiplier;
2456
2457 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2458 //
2459 // For ATAPI device, doesn't support multiple LUN device.
2460 //
2461 if (Lun != 0) {
2462 return EFI_INVALID_PARAMETER;
2463 }
2464 //
2465 // The layout of Target array:
2466 // ________________________________________________________________________
2467 // | Byte 0 | Byte 1 | ... | TARGET_MAX_BYTES - 1 |
2468 // |_____________________|_____________________|_____|______________________|
2469 // | | The port multiplier | | |
2470 // | The port number | port number | N/A | N/A |
2471 // |_____________________|_____________________|_____|______________________|
2472 //
2473 // For ATAPI device, 2 bytes is enough to represent the location of SCSI device.
2474 //
2475 Port = Target[0];
2476 PortMultiplier = Target[1];
2477
2478 Node = SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom);
2479 if (Node == NULL) {
2480 return EFI_INVALID_PARAMETER;
2481 }
2482
2483 //
2484 // Return success directly then upper layer driver could think reset target LUN operation is done.
2485 //
2486 return EFI_SUCCESS;
2487 }
2488
2489 /**
2490 Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either
2491 be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs
2492 for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to
2493 see if a SCSI device is actually present at that location on the SCSI channel.
2494
2495 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2496 @param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
2497 On output, a pointer to the Target ID (an array of
2498 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
2499 channel. An input value of 0xF(all bytes in the array are 0xF) in the
2500 Target array retrieves the Target ID of the first SCSI device present on a
2501 SCSI channel.
2502
2503 @retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI
2504 channel was returned in Target.
2505 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.
2506 @retval EFI_TIMEOUT Target array is not all 0xF, and Target was not
2507 returned on a previous call to GetNextTarget().
2508 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
2509
2510 **/
2511 EFI_STATUS
2512 EFIAPI
2513 ExtScsiPassThruGetNextTarget (
2514 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2515 IN OUT UINT8 **Target
2516 )
2517 {
2518 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2519 LIST_ENTRY *Node;
2520 EFI_ATA_DEVICE_INFO *DeviceInfo;
2521 UINT8 *Target8;
2522 UINT16 *Target16;
2523
2524 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2525
2526 if (Target == NULL || *Target == NULL) {
2527 return EFI_INVALID_PARAMETER;
2528 }
2529
2530 Target8 = *Target;
2531 Target16 = (UINT16 *)*Target;
2532
2533 if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {
2534 //
2535 // For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.
2536 // So the higher bytes in Target array should be 0xFF.
2537 //
2538 if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {
2539 return EFI_INVALID_PARAMETER;
2540 }
2541
2542 //
2543 // When Target is not all 0xFF's, compare 2 least significant bytes with
2544 // previous target id to see if it is returned by previous call.
2545 //
2546 if (*Target16 != Instance->PreviousTargetId) {
2547 return EFI_INVALID_PARAMETER;
2548 }
2549
2550 //
2551 // Traverse the whole device list to find the next cdrom closed to
2552 // the device signified by Target[0] and Target[1].
2553 //
2554 // Note that we here use a tricky way to find the next cdrom :
2555 // All ata devices are detected and inserted into the device list
2556 // sequentially.
2557 //
2558 Node = GetFirstNode (&Instance->DeviceList);
2559 while (!IsNull (&Instance->DeviceList, Node)) {
2560 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2561
2562 if ((DeviceInfo->Type == EfiIdeCdrom) &&
2563 ((Target8[0] < DeviceInfo->Port) ||
2564 ((Target8[0] == DeviceInfo->Port) &&
2565 (Target8[1] < DeviceInfo->PortMultiplier)))) {
2566 Target8[0] = (UINT8)DeviceInfo->Port;
2567 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2568 goto Exit;
2569 }
2570
2571 Node = GetNextNode (&Instance->DeviceList, Node);
2572 }
2573
2574 return EFI_NOT_FOUND;
2575 } else {
2576 //
2577 // If the array is all 0xFF's, start to traverse the device list from the beginning
2578 //
2579 Node = GetFirstNode (&Instance->DeviceList);
2580
2581 while (!IsNull (&Instance->DeviceList, Node)) {
2582 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2583
2584 if (DeviceInfo->Type == EfiIdeCdrom) {
2585 Target8[0] = (UINT8)DeviceInfo->Port;
2586 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2587 goto Exit;
2588 }
2589
2590 Node = GetNextNode (&Instance->DeviceList, Node);
2591 }
2592
2593 return EFI_NOT_FOUND;
2594 }
2595
2596 Exit:
2597 //
2598 // Update the PreviousTargetId.
2599 //
2600 Instance->PreviousTargetId = *Target16;
2601
2602 return EFI_SUCCESS;
2603 }
2604
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