]> git.proxmox.com Git - mirror_edk2.git/blob - MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.c
projects / mirror_edk2.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
MdeModulePkg: Replace BSD License with BSD+Patent License
[mirror_edk2.git] / MdeModulePkg / Bus / Ata / AtaAtapiPassThru / AtaAtapiPassThru.c
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 - 2018, Intel Corporation. All rights reserved.<BR>
6 SPDX-License-Identifier: BSD-2-Clause-Patent
7
8 **/
9
10 #include "AtaAtapiPassThru.h"
11
12 //
13 // EFI_DRIVER_BINDING_PROTOCOL instance
14 //
15 EFI_DRIVER_BINDING_PROTOCOL gAtaAtapiPassThruDriverBinding = {
16 AtaAtapiPassThruSupported,
17 AtaAtapiPassThruStart,
18 AtaAtapiPassThruStop,
19 0x10,
20 NULL,
21 NULL
22 };
23
24 ATA_ATAPI_PASS_THRU_INSTANCE gAtaAtapiPassThruInstanceTemplate = {
25 ATA_ATAPI_PASS_THRU_SIGNATURE,
26 0, // Controller Handle
27 NULL, // PciIo Protocol
28 NULL, // IdeControllerInit Protocol
29 { // AtaPassThruMode
30 //
31 // According to UEFI2.3 spec Section 12.10, Drivers for non-RAID ATA controllers should set
32 // both EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL
33 // bits.
34 // Note that the driver doesn't support AtaPassThru non blocking I/O.
35 //
36 EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL | EFI_ATA_PASS_THRU_ATTRIBUTES_NONBLOCKIO,
37 //
38 // IoAlign
39 //
40 sizeof (UINTN)
41 },
42 { // AtaPassThru
43 NULL,
44 AtaPassThruPassThru,
45 AtaPassThruGetNextPort,
46 AtaPassThruGetNextDevice,
47 AtaPassThruBuildDevicePath,
48 AtaPassThruGetDevice,
49 AtaPassThruResetPort,
50 AtaPassThruResetDevice
51 },
52 { // ExtScsiPassThruMode
53 //
54 // AdapterId
55 //
56 0,
57 //
58 // According to UEFI2.3 spec Section 14.7, Drivers for non-RAID SCSI controllers should set
59 // both EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL and EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL
60 // bits.
61 // Note that the driver doesn't support ExtScsiPassThru non blocking I/O.
62 //
63 EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL,
64 //
65 // IoAlign
66 //
67 sizeof (UINTN)
68 },
69 { // ExtScsiPassThru
70 NULL,
71 ExtScsiPassThruPassThru,
72 ExtScsiPassThruGetNextTargetLun,
73 ExtScsiPassThruBuildDevicePath,
74 ExtScsiPassThruGetTargetLun,
75 ExtScsiPassThruResetChannel,
76 ExtScsiPassThruResetTargetLun,
77 ExtScsiPassThruGetNextTarget
78 },
79 EfiAtaUnknownMode, // Work Mode
80 { // IdeRegisters
81 {0},
82 {0}
83 },
84 { // AhciRegisters
85 0
86 },
87 { // DeviceList
88 NULL,
89 NULL
90 },
91 0, // EnabledPciAttributes
92 0, // OriginalAttributes
93 0, // PreviousPort
94 0, // PreviousPortMultiplier
95 0, // PreviousTargetId
96 0, // PreviousLun
97 NULL, // Timer event
98 { // NonBlocking TaskList
99 NULL,
100 NULL
101 }
102 };
103
104 ATAPI_DEVICE_PATH mAtapiDevicePathTemplate = {
105 {
106 MESSAGING_DEVICE_PATH,
107 MSG_ATAPI_DP,
108 {
109 (UINT8) (sizeof (ATAPI_DEVICE_PATH)),
110 (UINT8) ((sizeof (ATAPI_DEVICE_PATH)) >> 8)
111 }
112 },
113 0,
114 0,
115 0
116 };
117
118 SATA_DEVICE_PATH mSataDevicePathTemplate = {
119 {
120 MESSAGING_DEVICE_PATH,
121 MSG_SATA_DP,
122 {
123 (UINT8) (sizeof (SATA_DEVICE_PATH)),
124 (UINT8) ((sizeof (SATA_DEVICE_PATH)) >> 8)
125 }
126 },
127 0,
128 0,
129 0
130 };
131
132 UINT8 mScsiId[TARGET_MAX_BYTES] = {
133 0xFF, 0xFF, 0xFF, 0xFF,
134 0xFF, 0xFF, 0xFF, 0xFF,
135 0xFF, 0xFF, 0xFF, 0xFF,
136 0xFF, 0xFF, 0xFF, 0xFF
137 };
138
139 EDKII_ATA_ATAPI_POLICY_PROTOCOL *mAtaAtapiPolicy;
140 EDKII_ATA_ATAPI_POLICY_PROTOCOL mDefaultAtaAtapiPolicy = {
141 EDKII_ATA_ATAPI_POLICY_VERSION,
142 2, // PuisEnable
143 0, // DeviceSleepEnable
144 0, // AggressiveDeviceSleepEnable
145 0 // Reserved
146 };
147
148 /**
149 Sends an ATA command to an ATA device that is attached to the ATA controller. This function
150 supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,
151 and the non-blocking I/O functionality is optional.
152
153 @param[in] Port The port number of the ATA device to send the command.
154 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
155 If there is no port multiplier, then specify 0xFFFF.
156 @param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port
157 and PortMultiplierPort.
158 @param[in] Instance Pointer to the ATA_ATAPI_PASS_THRU_INSTANCE.
159 @param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK
160 used by non-blocking mode.
161
162 @retval EFI_SUCCESS The ATA command was sent by the host. For
163 bi-directional commands, InTransferLength bytes
164 were transferred from InDataBuffer. For
165 write and bi-directional commands, OutTransferLength
166 bytes were transferred by OutDataBuffer.
167 @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number
168 of bytes that could be transferred is returned
169 in InTransferLength. For write and bi-directional
170 commands, OutTransferLength bytes were transferred
171 by OutDataBuffer.
172 @retval EFI_NOT_READY The ATA command could not be sent because
173 there are too many ATA commands already
174 queued. The caller may retry again later.
175 @retval EFI_DEVICE_ERROR A device error occurred while attempting
176 to send the ATA command.
177 @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents
178 of Acb are invalid. The ATA command was
179 not sent, so no additional status information
180 is available.
181
182 **/
183 EFI_STATUS
184 EFIAPI
185 AtaPassThruPassThruExecute (
186 IN UINT16 Port,
187 IN UINT16 PortMultiplierPort,
188 IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,
189 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
190 IN ATA_NONBLOCK_TASK *Task OPTIONAL
191 )
192 {
193 EFI_ATA_PASS_THRU_CMD_PROTOCOL Protocol;
194 EFI_ATA_HC_WORK_MODE Mode;
195 EFI_STATUS Status;
196
197 Protocol = Packet->Protocol;
198
199 Mode = Instance->Mode;
200 switch (Mode) {
201 case EfiAtaIdeMode:
202 //
203 // Reassign IDE mode io port registers' base addresses
204 //
205 Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);
206
207 if (EFI_ERROR (Status)) {
208 return Status;
209 }
210
211 switch (Protocol) {
212 case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:
213 Status = AtaNonDataCommandIn (
214 Instance->PciIo,
215 &Instance->IdeRegisters[Port],
216 Packet->Acb,
217 Packet->Asb,
218 Packet->Timeout,
219 Task
220 );
221 break;
222 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:
223 Status = AtaPioDataInOut (
224 Instance->PciIo,
225 &Instance->IdeRegisters[Port],
226 Packet->InDataBuffer,
227 Packet->InTransferLength,
228 TRUE,
229 Packet->Acb,
230 Packet->Asb,
231 Packet->Timeout,
232 Task
233 );
234 break;
235 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:
236 Status = AtaPioDataInOut (
237 Instance->PciIo,
238 &Instance->IdeRegisters[Port],
239 Packet->OutDataBuffer,
240 Packet->OutTransferLength,
241 FALSE,
242 Packet->Acb,
243 Packet->Asb,
244 Packet->Timeout,
245 Task
246 );
247 break;
248 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:
249 Status = AtaUdmaInOut (
250 Instance,
251 &Instance->IdeRegisters[Port],
252 TRUE,
253 Packet->InDataBuffer,
254 Packet->InTransferLength,
255 Packet->Acb,
256 Packet->Asb,
257 Packet->Timeout,
258 Task
259 );
260 break;
261 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:
262 Status = AtaUdmaInOut (
263 Instance,
264 &Instance->IdeRegisters[Port],
265 FALSE,
266 Packet->OutDataBuffer,
267 Packet->OutTransferLength,
268 Packet->Acb,
269 Packet->Asb,
270 Packet->Timeout,
271 Task
272 );
273 break;
274 default :
275 return EFI_UNSUPPORTED;
276 }
277 break;
278 case EfiAtaAhciMode :
279 if (PortMultiplierPort == 0xFFFF) {
280 //
281 // If there is no port multiplier, PortMultiplierPort will be 0xFFFF
282 // according to UEFI spec. Here, we convert its value to 0 to follow
283 // AHCI spec.
284 //
285 PortMultiplierPort = 0;
286 }
287 switch (Protocol) {
288 case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:
289 Status = AhciNonDataTransfer (
290 Instance->PciIo,
291 &Instance->AhciRegisters,
292 (UINT8)Port,
293 (UINT8)PortMultiplierPort,
294 NULL,
295 0,
296 Packet->Acb,
297 Packet->Asb,
298 Packet->Timeout,
299 Task
300 );
301 break;
302 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:
303 Status = AhciPioTransfer (
304 Instance->PciIo,
305 &Instance->AhciRegisters,
306 (UINT8)Port,
307 (UINT8)PortMultiplierPort,
308 NULL,
309 0,
310 TRUE,
311 Packet->Acb,
312 Packet->Asb,
313 Packet->InDataBuffer,
314 Packet->InTransferLength,
315 Packet->Timeout,
316 Task
317 );
318 break;
319 case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:
320 Status = AhciPioTransfer (
321 Instance->PciIo,
322 &Instance->AhciRegisters,
323 (UINT8)Port,
324 (UINT8)PortMultiplierPort,
325 NULL,
326 0,
327 FALSE,
328 Packet->Acb,
329 Packet->Asb,
330 Packet->OutDataBuffer,
331 Packet->OutTransferLength,
332 Packet->Timeout,
333 Task
334 );
335 break;
336 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:
337 Status = AhciDmaTransfer (
338 Instance,
339 &Instance->AhciRegisters,
340 (UINT8)Port,
341 (UINT8)PortMultiplierPort,
342 NULL,
343 0,
344 TRUE,
345 Packet->Acb,
346 Packet->Asb,
347 Packet->InDataBuffer,
348 Packet->InTransferLength,
349 Packet->Timeout,
350 Task
351 );
352 break;
353 case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:
354 Status = AhciDmaTransfer (
355 Instance,
356 &Instance->AhciRegisters,
357 (UINT8)Port,
358 (UINT8)PortMultiplierPort,
359 NULL,
360 0,
361 FALSE,
362 Packet->Acb,
363 Packet->Asb,
364 Packet->OutDataBuffer,
365 Packet->OutTransferLength,
366 Packet->Timeout,
367 Task
368 );
369 break;
370 default :
371 return EFI_UNSUPPORTED;
372 }
373 break;
374
375 default:
376 Status = EFI_DEVICE_ERROR;
377 break;
378 }
379
380 return Status;
381 }
382
383 /**
384 Call back function when the timer event is signaled.
385
386 @param[in] Event The Event this notify function registered to.
387 @param[in] Context Pointer to the context data registered to the
388 Event.
389
390 **/
391 VOID
392 EFIAPI
393 AsyncNonBlockingTransferRoutine (
394 EFI_EVENT Event,
395 VOID* Context
396 )
397 {
398 LIST_ENTRY *Entry;
399 LIST_ENTRY *EntryHeader;
400 ATA_NONBLOCK_TASK *Task;
401 EFI_STATUS Status;
402 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
403
404 Instance = (ATA_ATAPI_PASS_THRU_INSTANCE *) Context;
405 EntryHeader = &Instance->NonBlockingTaskList;
406 //
407 // Get the Taks from the Taks List and execute it, until there is
408 // no task in the list or the device is busy with task (EFI_NOT_READY).
409 //
410 while (TRUE) {
411 if (!IsListEmpty (EntryHeader)) {
412 Entry = GetFirstNode (EntryHeader);
413 Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (Entry);
414 } else {
415 return;
416 }
417
418 Status = AtaPassThruPassThruExecute (
419 Task->Port,
420 Task->PortMultiplier,
421 Task->Packet,
422 Instance,
423 Task
424 );
425
426 //
427 // If the data transfer meet a error, remove all tasks in the list since these tasks are
428 // associated with one task from Ata Bus and signal the event with error status.
429 //
430 if ((Status != EFI_NOT_READY) && (Status != EFI_SUCCESS)) {
431 DestroyAsynTaskList (Instance, TRUE);
432 break;
433 }
434
435 //
436 // For Non blocking mode, the Status of EFI_NOT_READY means the operation
437 // is not finished yet. Otherwise the operation is successful.
438 //
439 if (Status == EFI_NOT_READY) {
440 break;
441 } else {
442 RemoveEntryList (&Task->Link);
443 gBS->SignalEvent (Task->Event);
444 FreePool (Task);
445 }
446 }
447 }
448
449 /**
450 The Entry Point of module.
451
452 @param[in] ImageHandle The firmware allocated handle for the EFI image.
453 @param[in] SystemTable A pointer to the EFI System Table.
454
455 @retval EFI_SUCCESS The entry point is executed successfully.
456 @retval other Some error occurs when executing this entry point.
457
458 **/
459 EFI_STATUS
460 EFIAPI
461 InitializeAtaAtapiPassThru (
462 IN EFI_HANDLE ImageHandle,
463 IN EFI_SYSTEM_TABLE *SystemTable
464 )
465 {
466 EFI_STATUS Status;
467
468 //
469 // Install driver model protocol(s).
470 //
471 Status = EfiLibInstallDriverBindingComponentName2 (
472 ImageHandle,
473 SystemTable,
474 &gAtaAtapiPassThruDriverBinding,
475 ImageHandle,
476 &gAtaAtapiPassThruComponentName,
477 &gAtaAtapiPassThruComponentName2
478 );
479 ASSERT_EFI_ERROR (Status);
480
481 return Status;
482 }
483
484 /**
485 Tests to see if this driver supports a given controller. If a child device is provided,
486 it further tests to see if this driver supports creating a handle for the specified child device.
487
488 This function checks to see if the driver specified by This supports the device specified by
489 ControllerHandle. Drivers will typically use the device path attached to
490 ControllerHandle and/or the services from the bus I/O abstraction attached to
491 ControllerHandle to determine if the driver supports ControllerHandle. This function
492 may be called many times during platform initialization. In order to reduce boot times, the tests
493 performed by this function must be very small, and take as little time as possible to execute. This
494 function must not change the state of any hardware devices, and this function must be aware that the
495 device specified by ControllerHandle may already be managed by the same driver or a
496 different driver. This function must match its calls to AllocatePages() with FreePages(),
497 AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
498 Because ControllerHandle may have been previously started by the same driver, if a protocol is
499 already in the opened state, then it must not be closed with CloseProtocol(). This is required
500 to guarantee the state of ControllerHandle is not modified by this function.
501
502 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
503 @param[in] ControllerHandle The handle of the controller to test. This handle
504 must support a protocol interface that supplies
505 an I/O abstraction to the driver.
506 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
507 parameter is ignored by device drivers, and is optional for bus
508 drivers. For bus drivers, if this parameter is not NULL, then
509 the bus driver must determine if the bus controller specified
510 by ControllerHandle and the child controller specified
511 by RemainingDevicePath are both supported by this
512 bus driver.
513
514 @retval EFI_SUCCESS The device specified by ControllerHandle and
515 RemainingDevicePath is supported by the driver specified by This.
516 @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
517 RemainingDevicePath is already being managed by the driver
518 specified by This.
519 @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
520 RemainingDevicePath is already being managed by a different
521 driver or an application that requires exclusive access.
522 Currently not implemented.
523 @retval EFI_UNSUPPORTED The device specified by ControllerHandle and
524 RemainingDevicePath is not supported by the driver specified by This.
525 **/
526 EFI_STATUS
527 EFIAPI
528 AtaAtapiPassThruSupported (
529 IN EFI_DRIVER_BINDING_PROTOCOL *This,
530 IN EFI_HANDLE Controller,
531 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
532 )
533 {
534 EFI_STATUS Status;
535 EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
536 EFI_PCI_IO_PROTOCOL *PciIo;
537 PCI_TYPE00 PciData;
538 EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;
539
540 //
541 // SATA Controller is a device driver, and should ingore the
542 // "RemainingDevicePath" according to UEFI spec
543 //
544 Status = gBS->OpenProtocol (
545 Controller,
546 &gEfiDevicePathProtocolGuid,
547 (VOID *) &ParentDevicePath,
548 This->DriverBindingHandle,
549 Controller,
550 EFI_OPEN_PROTOCOL_BY_DRIVER
551 );
552 if (EFI_ERROR (Status)) {
553 //
554 // EFI_ALREADY_STARTED is also an error
555 //
556 return Status;
557 }
558 //
559 // Close the protocol because we don't use it here
560 //
561 gBS->CloseProtocol (
562 Controller,
563 &gEfiDevicePathProtocolGuid,
564 This->DriverBindingHandle,
565 Controller
566 );
567
568 Status = gBS->OpenProtocol (
569 Controller,
570 &gEfiIdeControllerInitProtocolGuid,
571 (VOID **) &IdeControllerInit,
572 This->DriverBindingHandle,
573 Controller,
574 EFI_OPEN_PROTOCOL_BY_DRIVER
575 );
576
577 if (EFI_ERROR (Status)) {
578 //
579 // EFI_ALREADY_STARTED is also an error
580 //
581 return Status;
582 }
583
584 //
585 // Close the I/O Abstraction(s) used to perform the supported test
586 //
587 gBS->CloseProtocol (
588 Controller,
589 &gEfiIdeControllerInitProtocolGuid,
590 This->DriverBindingHandle,
591 Controller
592 );
593
594 //
595 // Now test the EfiPciIoProtocol
596 //
597 Status = gBS->OpenProtocol (
598 Controller,
599 &gEfiPciIoProtocolGuid,
600 (VOID **) &PciIo,
601 This->DriverBindingHandle,
602 Controller,
603 EFI_OPEN_PROTOCOL_GET_PROTOCOL
604 );
605 if (EFI_ERROR (Status)) {
606 return Status;
607 }
608 //
609 // Now further check the PCI header: Base class (offset 0x0B) and
610 // Sub Class (offset 0x0A). This controller should be an ATA controller
611 //
612 Status = PciIo->Pci.Read (
613 PciIo,
614 EfiPciIoWidthUint8,
615 PCI_CLASSCODE_OFFSET,
616 sizeof (PciData.Hdr.ClassCode),
617 PciData.Hdr.ClassCode
618 );
619 if (EFI_ERROR (Status)) {
620 return EFI_UNSUPPORTED;
621 }
622
623 if (IS_PCI_IDE (&PciData) || IS_PCI_SATADPA (&PciData)) {
624 return EFI_SUCCESS;
625 }
626
627 return EFI_UNSUPPORTED;
628 }
629
630 /**
631 Starts a device controller or a bus controller.
632
633 The Start() function is designed to be invoked from the EFI boot service ConnectController().
634 As a result, much of the error checking on the parameters to Start() has been moved into this
635 common boot service. It is legal to call Start() from other locations,
636 but the following calling restrictions must be followed, or the system behavior will not be deterministic.
637 1. ControllerHandle must be a valid EFI_HANDLE.
638 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
639 EFI_DEVICE_PATH_PROTOCOL.
640 3. Prior to calling Start(), the Supported() function for the driver specified by This must
641 have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
642
643 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
644 @param[in] ControllerHandle The handle of the controller to start. This handle
645 must support a protocol interface that supplies
646 an I/O abstraction to the driver.
647 @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
648 parameter is ignored by device drivers, and is optional for bus
649 drivers. For a bus driver, if this parameter is NULL, then handles
650 for all the children of Controller are created by this driver.
651 If this parameter is not NULL and the first Device Path Node is
652 not the End of Device Path Node, then only the handle for the
653 child device specified by the first Device Path Node of
654 RemainingDevicePath is created by this driver.
655 If the first Device Path Node of RemainingDevicePath is
656 the End of Device Path Node, no child handle is created by this
657 driver.
658
659 @retval EFI_SUCCESS The device was started.
660 @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
661 @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
662 @retval Others The driver failded to start the device.
663
664 **/
665 EFI_STATUS
666 EFIAPI
667 AtaAtapiPassThruStart (
668 IN EFI_DRIVER_BINDING_PROTOCOL *This,
669 IN EFI_HANDLE Controller,
670 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
671 )
672 {
673 EFI_STATUS Status;
674 EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;
675 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
676 EFI_PCI_IO_PROTOCOL *PciIo;
677 UINT64 EnabledPciAttributes;
678 UINT64 OriginalPciAttributes;
679
680 Status = EFI_SUCCESS;
681 IdeControllerInit = NULL;
682 Instance = NULL;
683 OriginalPciAttributes = 0;
684
685 DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Start== Controller = %x\n", Controller));
686
687 Status = gBS->OpenProtocol (
688 Controller,
689 &gEfiIdeControllerInitProtocolGuid,
690 (VOID **) &IdeControllerInit,
691 This->DriverBindingHandle,
692 Controller,
693 EFI_OPEN_PROTOCOL_BY_DRIVER
694 );
695
696 if (EFI_ERROR (Status)) {
697 DEBUG ((EFI_D_ERROR, "Open Ide_Controller_Init Error, Status=%r", Status));
698 goto ErrorExit;
699 }
700
701 Status = gBS->OpenProtocol (
702 Controller,
703 &gEfiPciIoProtocolGuid,
704 (VOID **) &PciIo,
705 This->DriverBindingHandle,
706 Controller,
707 EFI_OPEN_PROTOCOL_GET_PROTOCOL
708 );
709 if (EFI_ERROR (Status)) {
710 DEBUG ((EFI_D_ERROR, "Get Pci_Io Protocol Error, Status=%r", Status));
711 goto ErrorExit;
712 }
713
714 Status = PciIo->Attributes (
715 PciIo,
716 EfiPciIoAttributeOperationGet,
717 0,
718 &OriginalPciAttributes
719 );
720
721 if (EFI_ERROR (Status)) {
722 goto ErrorExit;
723 }
724
725 Status = PciIo->Attributes (
726 PciIo,
727 EfiPciIoAttributeOperationSupported,
728 0,
729 &EnabledPciAttributes
730 );
731 if (!EFI_ERROR (Status)) {
732 EnabledPciAttributes &= (UINT64)EFI_PCI_DEVICE_ENABLE;
733 Status = PciIo->Attributes (
734 PciIo,
735 EfiPciIoAttributeOperationEnable,
736 EnabledPciAttributes,
737 NULL
738 );
739 }
740
741 if (EFI_ERROR (Status)) {
742 goto ErrorExit;
743 }
744
745 Status = gBS->LocateProtocol (&gEdkiiAtaAtapiPolicyProtocolGuid, NULL, (VOID **)&mAtaAtapiPolicy);
746 if (EFI_ERROR (Status)) {
747 //
748 // If there is no AtaAtapiPolicy exposed, use the default policy.
749 //
750 mAtaAtapiPolicy = &mDefaultAtaAtapiPolicy;
751 }
752
753 //
754 // Allocate a buffer to store the ATA_ATAPI_PASS_THRU_INSTANCE data structure
755 //
756 Instance = AllocateCopyPool (sizeof (ATA_ATAPI_PASS_THRU_INSTANCE), &gAtaAtapiPassThruInstanceTemplate);
757 if (Instance == NULL) {
758 goto ErrorExit;
759 }
760
761 Instance->ControllerHandle = Controller;
762 Instance->IdeControllerInit = IdeControllerInit;
763 Instance->PciIo = PciIo;
764 Instance->EnabledPciAttributes = EnabledPciAttributes;
765 Instance->OriginalPciAttributes = OriginalPciAttributes;
766 Instance->AtaPassThru.Mode = &Instance->AtaPassThruMode;
767 Instance->ExtScsiPassThru.Mode = &Instance->ExtScsiPassThruMode;
768 InitializeListHead(&Instance->DeviceList);
769 InitializeListHead(&Instance->NonBlockingTaskList);
770
771 Instance->TimerEvent = NULL;
772
773 Status = gBS->CreateEvent (
774 EVT_TIMER | EVT_NOTIFY_SIGNAL,
775 TPL_NOTIFY,
776 AsyncNonBlockingTransferRoutine,
777 Instance,
778 &Instance->TimerEvent
779 );
780 if (EFI_ERROR (Status)) {
781 goto ErrorExit;
782 }
783
784 //
785 // Set 1ms timer.
786 //
787 Status = gBS->SetTimer (Instance->TimerEvent, TimerPeriodic, 10000);
788 if (EFI_ERROR (Status)) {
789 goto ErrorExit;
790 }
791
792 //
793 // Enumerate all inserted ATA devices.
794 //
795 Status = EnumerateAttachedDevice (Instance);
796 if (EFI_ERROR (Status)) {
797 goto ErrorExit;
798 }
799
800 Status = gBS->InstallMultipleProtocolInterfaces (
801 &Controller,
802 &gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),
803 &gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),
804 NULL
805 );
806 ASSERT_EFI_ERROR (Status);
807
808 return Status;
809
810 ErrorExit:
811 if (IdeControllerInit != NULL) {
812 gBS->CloseProtocol (
813 Controller,
814 &gEfiIdeControllerInitProtocolGuid,
815 This->DriverBindingHandle,
816 Controller
817 );
818 }
819
820 if ((Instance != NULL) && (Instance->TimerEvent != NULL)) {
821 gBS->CloseEvent (Instance->TimerEvent);
822 }
823
824 if (Instance != NULL) {
825 //
826 // Remove all inserted ATA devices.
827 //
828 DestroyDeviceInfoList (Instance);
829 FreePool (Instance);
830 }
831 return EFI_UNSUPPORTED;
832 }
833
834 /**
835 Stops a device controller or a bus controller.
836
837 The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
838 As a result, much of the error checking on the parameters to Stop() has been moved
839 into this common boot service. It is legal to call Stop() from other locations,
840 but the following calling restrictions must be followed, or the system behavior will not be deterministic.
841 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
842 same driver's Start() function.
843 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
844 EFI_HANDLE. In addition, all of these handles must have been created in this driver's
845 Start() function, and the Start() function must have called OpenProtocol() on
846 ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
847
848 @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
849 @param[in] ControllerHandle A handle to the device being stopped. The handle must
850 support a bus specific I/O protocol for the driver
851 to use to stop the device.
852 @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
853 @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
854 if NumberOfChildren is 0.
855
856 @retval EFI_SUCCESS The device was stopped.
857 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
858
859 **/
860 EFI_STATUS
861 EFIAPI
862 AtaAtapiPassThruStop (
863 IN EFI_DRIVER_BINDING_PROTOCOL *This,
864 IN EFI_HANDLE Controller,
865 IN UINTN NumberOfChildren,
866 IN EFI_HANDLE *ChildHandleBuffer
867 )
868 {
869 EFI_STATUS Status;
870 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
871 EFI_ATA_PASS_THRU_PROTOCOL *AtaPassThru;
872 EFI_PCI_IO_PROTOCOL *PciIo;
873 EFI_AHCI_REGISTERS *AhciRegisters;
874
875 DEBUG ((EFI_D_INFO, "==AtaAtapiPassThru Stop== Controller = %x\n", Controller));
876
877 Status = gBS->OpenProtocol (
878 Controller,
879 &gEfiAtaPassThruProtocolGuid,
880 (VOID **) &AtaPassThru,
881 This->DriverBindingHandle,
882 Controller,
883 EFI_OPEN_PROTOCOL_GET_PROTOCOL
884 );
885
886 if (EFI_ERROR (Status)) {
887 return EFI_DEVICE_ERROR;
888 }
889
890 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (AtaPassThru);
891
892 Status = gBS->UninstallMultipleProtocolInterfaces (
893 Controller,
894 &gEfiAtaPassThruProtocolGuid, &(Instance->AtaPassThru),
895 &gEfiExtScsiPassThruProtocolGuid, &(Instance->ExtScsiPassThru),
896 NULL
897 );
898
899 if (EFI_ERROR (Status)) {
900 return EFI_DEVICE_ERROR;
901 }
902
903 //
904 // Close protocols opened by AtaAtapiPassThru controller driver
905 //
906 gBS->CloseProtocol (
907 Controller,
908 &gEfiIdeControllerInitProtocolGuid,
909 This->DriverBindingHandle,
910 Controller
911 );
912
913 //
914 // Close Non-Blocking timer and free Task list.
915 //
916 if (Instance->TimerEvent != NULL) {
917 gBS->CloseEvent (Instance->TimerEvent);
918 Instance->TimerEvent = NULL;
919 }
920 DestroyAsynTaskList (Instance, FALSE);
921 //
922 // Free allocated resource
923 //
924 DestroyDeviceInfoList (Instance);
925
926 PciIo = Instance->PciIo;
927
928 //
929 // Disable this ATA host controller.
930 //
931 PciIo->Attributes (
932 PciIo,
933 EfiPciIoAttributeOperationDisable,
934 Instance->EnabledPciAttributes,
935 NULL
936 );
937
938 //
939 // If the current working mode is AHCI mode, then pre-allocated resource
940 // for AHCI initialization should be released.
941 //
942 if (Instance->Mode == EfiAtaAhciMode) {
943 AhciRegisters = &Instance->AhciRegisters;
944 PciIo->Unmap (
945 PciIo,
946 AhciRegisters->MapCommandTable
947 );
948 PciIo->FreeBuffer (
949 PciIo,
950 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandTableSize),
951 AhciRegisters->AhciCommandTable
952 );
953 PciIo->Unmap (
954 PciIo,
955 AhciRegisters->MapCmdList
956 );
957 PciIo->FreeBuffer (
958 PciIo,
959 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxCommandListSize),
960 AhciRegisters->AhciCmdList
961 );
962 PciIo->Unmap (
963 PciIo,
964 AhciRegisters->MapRFis
965 );
966 PciIo->FreeBuffer (
967 PciIo,
968 EFI_SIZE_TO_PAGES ((UINTN) AhciRegisters->MaxReceiveFisSize),
969 AhciRegisters->AhciRFis
970 );
971 }
972
973 //
974 // Restore original PCI attributes
975 //
976 Status = PciIo->Attributes (
977 PciIo,
978 EfiPciIoAttributeOperationSet,
979 Instance->OriginalPciAttributes,
980 NULL
981 );
982 ASSERT_EFI_ERROR (Status);
983
984 FreePool (Instance);
985
986 return Status;
987 }
988
989 /**
990 Traverse the attached ATA devices list to find out the device to access.
991
992 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
993 @param[in] Port The port number of the ATA device to send the command.
994 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
995 If there is no port multiplier, then specify 0xFFFF.
996 @param[in] DeviceType The device type of the ATA device.
997
998 @retval The pointer to the data structure of the device info to access.
999
1000 **/
1001 LIST_ENTRY *
1002 EFIAPI
1003 SearchDeviceInfoList (
1004 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
1005 IN UINT16 Port,
1006 IN UINT16 PortMultiplier,
1007 IN EFI_ATA_DEVICE_TYPE DeviceType
1008 )
1009 {
1010 EFI_ATA_DEVICE_INFO *DeviceInfo;
1011 LIST_ENTRY *Node;
1012
1013 Node = GetFirstNode (&Instance->DeviceList);
1014 while (!IsNull (&Instance->DeviceList, Node)) {
1015 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1016
1017 //
1018 // For CD-ROM working in the AHCI mode, only 8 bits are used to record
1019 // the PortMultiplier information. If the CD-ROM is directly attached
1020 // on a SATA port, the PortMultiplier should be translated from 0xFF
1021 // to 0xFFFF according to the UEFI spec.
1022 //
1023 if ((Instance->Mode == EfiAtaAhciMode) &&
1024 (DeviceInfo->Type == EfiIdeCdrom) &&
1025 (PortMultiplier == 0xFF)) {
1026 PortMultiplier = 0xFFFF;
1027 }
1028
1029 if ((DeviceInfo->Type == DeviceType) &&
1030 (Port == DeviceInfo->Port) &&
1031 (PortMultiplier == DeviceInfo->PortMultiplier)) {
1032 return Node;
1033 }
1034
1035 Node = GetNextNode (&Instance->DeviceList, Node);
1036 }
1037
1038 return NULL;
1039 }
1040
1041 /**
1042 Allocate device info data structure to contain device info.
1043 And insert the data structure to the tail of device list for tracing.
1044
1045 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1046 @param[in] Port The port number of the ATA device to send the command.
1047 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
1048 If there is no port multiplier, then specify 0xFFFF.
1049 @param[in] DeviceType The device type of the ATA device.
1050 @param[in] IdentifyData The data buffer to store the output of the IDENTIFY cmd.
1051
1052 @retval EFI_SUCCESS Successfully insert the ata device to the tail of device list.
1053 @retval EFI_OUT_OF_RESOURCES Can not allocate enough resource for use.
1054
1055 **/
1056 EFI_STATUS
1057 EFIAPI
1058 CreateNewDeviceInfo (
1059 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
1060 IN UINT16 Port,
1061 IN UINT16 PortMultiplier,
1062 IN EFI_ATA_DEVICE_TYPE DeviceType,
1063 IN EFI_IDENTIFY_DATA *IdentifyData
1064 )
1065 {
1066 EFI_ATA_DEVICE_INFO *DeviceInfo;
1067
1068 DeviceInfo = AllocateZeroPool (sizeof (EFI_ATA_DEVICE_INFO));
1069
1070 if (DeviceInfo == NULL) {
1071 return EFI_OUT_OF_RESOURCES;
1072 }
1073
1074 DeviceInfo->Signature = ATA_ATAPI_DEVICE_SIGNATURE;
1075 DeviceInfo->Port = Port;
1076 DeviceInfo->PortMultiplier = PortMultiplier;
1077 DeviceInfo->Type = DeviceType;
1078
1079 if (IdentifyData != NULL) {
1080 DeviceInfo->IdentifyData = AllocateCopyPool (sizeof (EFI_IDENTIFY_DATA), IdentifyData);
1081 if (DeviceInfo->IdentifyData == NULL) {
1082 FreePool (DeviceInfo);
1083 return EFI_OUT_OF_RESOURCES;
1084 }
1085 }
1086
1087 InsertTailList (&Instance->DeviceList, &DeviceInfo->Link);
1088
1089 return EFI_SUCCESS;
1090 }
1091
1092 /**
1093 Destroy all attached ATA devices info.
1094
1095 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1096
1097 **/
1098 VOID
1099 EFIAPI
1100 DestroyDeviceInfoList (
1101 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
1102 )
1103 {
1104 EFI_ATA_DEVICE_INFO *DeviceInfo;
1105 LIST_ENTRY *Node;
1106
1107 Node = GetFirstNode (&Instance->DeviceList);
1108 while (!IsNull (&Instance->DeviceList, Node)) {
1109 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1110
1111 Node = GetNextNode (&Instance->DeviceList, Node);
1112
1113 RemoveEntryList (&DeviceInfo->Link);
1114 if (DeviceInfo->IdentifyData != NULL) {
1115 FreePool (DeviceInfo->IdentifyData);
1116 }
1117 FreePool (DeviceInfo);
1118 }
1119 }
1120
1121 /**
1122 Destroy all pending non blocking tasks.
1123
1124 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1125 @param[in] IsSigEvent Indicate whether signal the task event when remove the
1126 task.
1127
1128 **/
1129 VOID
1130 EFIAPI
1131 DestroyAsynTaskList (
1132 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
1133 IN BOOLEAN IsSigEvent
1134 )
1135 {
1136 LIST_ENTRY *Entry;
1137 LIST_ENTRY *DelEntry;
1138 ATA_NONBLOCK_TASK *Task;
1139 EFI_TPL OldTpl;
1140
1141 OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
1142 if (!IsListEmpty (&Instance->NonBlockingTaskList)) {
1143 //
1144 // Free the Subtask list.
1145 //
1146 for (Entry = (&Instance->NonBlockingTaskList)->ForwardLink;
1147 Entry != (&Instance->NonBlockingTaskList);
1148 ) {
1149 DelEntry = Entry;
1150 Entry = Entry->ForwardLink;
1151 Task = ATA_NON_BLOCK_TASK_FROM_ENTRY (DelEntry);
1152
1153 RemoveEntryList (DelEntry);
1154 if (IsSigEvent) {
1155 Task->Packet->Asb->AtaStatus = 0x01;
1156 gBS->SignalEvent (Task->Event);
1157 }
1158 FreePool (Task);
1159 }
1160 }
1161 gBS->RestoreTPL (OldTpl);
1162 }
1163
1164 /**
1165 Enumerate all attached ATA devices at IDE mode or AHCI mode separately.
1166
1167 The function is designed to enumerate all attached ATA devices.
1168
1169 @param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
1170
1171 @retval EFI_SUCCESS Successfully enumerate attached ATA devices.
1172 @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
1173
1174 **/
1175 EFI_STATUS
1176 EFIAPI
1177 EnumerateAttachedDevice (
1178 IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
1179 )
1180 {
1181 EFI_STATUS Status;
1182 PCI_TYPE00 PciData;
1183 UINT8 ClassCode;
1184
1185 Status = EFI_SUCCESS;
1186
1187 Status = Instance->PciIo->Pci.Read (
1188 Instance->PciIo,
1189 EfiPciIoWidthUint8,
1190 PCI_CLASSCODE_OFFSET,
1191 sizeof (PciData.Hdr.ClassCode),
1192 PciData.Hdr.ClassCode
1193 );
1194 ASSERT_EFI_ERROR (Status);
1195
1196 ClassCode = PciData.Hdr.ClassCode[1];
1197
1198 switch (ClassCode) {
1199 case PCI_CLASS_MASS_STORAGE_IDE :
1200 //
1201 // The ATA controller is working at IDE mode
1202 //
1203 Instance->Mode = EfiAtaIdeMode;
1204
1205 Status = IdeModeInitialization (Instance);
1206 if (EFI_ERROR (Status)) {
1207 Status = EFI_DEVICE_ERROR;
1208 goto Done;
1209 }
1210 break;
1211 case PCI_CLASS_MASS_STORAGE_SATADPA :
1212 //
1213 // The ATA controller is working at AHCI mode
1214 //
1215 Instance->Mode = EfiAtaAhciMode;
1216
1217 Status = AhciModeInitialization (Instance);
1218
1219 if (EFI_ERROR (Status)) {
1220 Status = EFI_DEVICE_ERROR;
1221 goto Done;
1222 }
1223
1224 break;
1225 default :
1226 Status = EFI_UNSUPPORTED;
1227 }
1228
1229 Done:
1230 return Status;
1231 }
1232
1233 /**
1234 Sends an ATA command to an ATA device that is attached to the ATA controller. This function
1235 supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,
1236 and the non-blocking I/O functionality is optional.
1237
1238 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1239 @param[in] Port The port number of the ATA device to send the command.
1240 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.
1241 If there is no port multiplier, then specify 0xFFFF.
1242 @param[in, out] Packet A pointer to the ATA command to send to the ATA device specified by Port
1243 and PortMultiplierPort.
1244 @param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking
1245 I/O is performed. If Event is NULL, then blocking I/O is performed. If
1246 Event is not NULL and non blocking I/O is supported, then non-blocking
1247 I/O is performed, and Event will be signaled when the ATA command completes.
1248
1249 @retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands,
1250 InTransferLength bytes were transferred from InDataBuffer. For write and
1251 bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer.
1252 @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred
1253 is returned in InTransferLength. For write and bi-directional commands,
1254 OutTransferLength bytes were transferred by OutDataBuffer.
1255 @retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands
1256 already queued. The caller may retry again later.
1257 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command.
1258 @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA
1259 command was not sent, so no additional status information is available.
1260
1261 **/
1262 EFI_STATUS
1263 EFIAPI
1264 AtaPassThruPassThru (
1265 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1266 IN UINT16 Port,
1267 IN UINT16 PortMultiplierPort,
1268 IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,
1269 IN EFI_EVENT Event OPTIONAL
1270 )
1271 {
1272 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1273 LIST_ENTRY *Node;
1274 EFI_ATA_DEVICE_INFO *DeviceInfo;
1275 EFI_IDENTIFY_DATA *IdentifyData;
1276 UINT64 Capacity;
1277 UINT32 MaxSectorCount;
1278 ATA_NONBLOCK_TASK *Task;
1279 EFI_TPL OldTpl;
1280 UINT32 BlockSize;
1281
1282 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1283
1284 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {
1285 return EFI_INVALID_PARAMETER;
1286 }
1287
1288 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {
1289 return EFI_INVALID_PARAMETER;
1290 }
1291
1292 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->Asb, This->Mode->IoAlign)) {
1293 return EFI_INVALID_PARAMETER;
1294 }
1295
1296 Node = SearchDeviceInfoList (Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
1297
1298 if (Node == NULL) {
1299 Node = SearchDeviceInfoList(Instance, Port, PortMultiplierPort, EfiIdeCdrom);
1300 if (Node == NULL) {
1301 return EFI_INVALID_PARAMETER;
1302 }
1303 }
1304
1305 //
1306 // Check whether this device needs 48-bit addressing (ATAPI-6 ata device).
1307 // Per ATA-6 spec, word83: bit15 is zero and bit14 is one.
1308 // If bit10 is one, it means the ata device support 48-bit addressing.
1309 //
1310 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1311 IdentifyData = DeviceInfo->IdentifyData;
1312 MaxSectorCount = 0x100;
1313 if ((IdentifyData->AtaData.command_set_supported_83 & (BIT10 | BIT15 | BIT14)) == 0x4400) {
1314 Capacity = *((UINT64 *)IdentifyData->AtaData.maximum_lba_for_48bit_addressing);
1315 if (Capacity > 0xFFFFFFF) {
1316 //
1317 // Capacity exceeds 120GB. 48-bit addressing is really needed
1318 // In this case, the max sector count is 0x10000
1319 //
1320 MaxSectorCount = 0x10000;
1321 }
1322 }
1323
1324 BlockSize = 0x200;
1325 if ((IdentifyData->AtaData.phy_logic_sector_support & (BIT14 | BIT15)) == BIT14) {
1326 //
1327 // Check logical block size
1328 //
1329 if ((IdentifyData->AtaData.phy_logic_sector_support & BIT12) != 0) {
1330 BlockSize = (UINT32) (((IdentifyData->AtaData.logic_sector_size_hi << 16) | IdentifyData->AtaData.logic_sector_size_lo) * sizeof (UINT16));
1331 }
1332 }
1333
1334 //
1335 // convert the transfer length from sector count to byte.
1336 //
1337 if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&
1338 (Packet->InTransferLength != 0)) {
1339 Packet->InTransferLength = Packet->InTransferLength * BlockSize;
1340 }
1341
1342 //
1343 // convert the transfer length from sector count to byte.
1344 //
1345 if (((Packet->Length & EFI_ATA_PASS_THRU_LENGTH_BYTES) == 0) &&
1346 (Packet->OutTransferLength != 0)) {
1347 Packet->OutTransferLength = Packet->OutTransferLength * BlockSize;
1348 }
1349
1350 //
1351 // If the data buffer described by InDataBuffer/OutDataBuffer and InTransferLength/OutTransferLength
1352 // is too big to be transferred in a single command, then no data is transferred and EFI_BAD_BUFFER_SIZE
1353 // is returned.
1354 //
1355 if (((Packet->InTransferLength != 0) && (Packet->InTransferLength > MaxSectorCount * BlockSize)) ||
1356 ((Packet->OutTransferLength != 0) && (Packet->OutTransferLength > MaxSectorCount * BlockSize))) {
1357 return EFI_BAD_BUFFER_SIZE;
1358 }
1359
1360 //
1361 // For non-blocking mode, queue the Task into the list.
1362 //
1363 if (Event != NULL) {
1364 Task = AllocateZeroPool (sizeof (ATA_NONBLOCK_TASK));
1365 if (Task == NULL) {
1366 return EFI_OUT_OF_RESOURCES;
1367 }
1368
1369 Task->Signature = ATA_NONBLOCKING_TASK_SIGNATURE;
1370 Task->Port = Port;
1371 Task->PortMultiplier = PortMultiplierPort;
1372 Task->Packet = Packet;
1373 Task->Event = Event;
1374 Task->IsStart = FALSE;
1375 Task->RetryTimes = DivU64x32(Packet->Timeout, 1000) + 1;
1376 if (Packet->Timeout == 0) {
1377 Task->InfiniteWait = TRUE;
1378 } else {
1379 Task->InfiniteWait = FALSE;
1380 }
1381
1382 OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
1383 InsertTailList (&Instance->NonBlockingTaskList, &Task->Link);
1384 gBS->RestoreTPL (OldTpl);
1385
1386 return EFI_SUCCESS;
1387 } else {
1388 return AtaPassThruPassThruExecute (
1389 Port,
1390 PortMultiplierPort,
1391 Packet,
1392 Instance,
1393 NULL
1394 );
1395 }
1396 }
1397
1398 /**
1399 Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.
1400 These can either be the list of ports where ATA devices are actually present or the
1401 list of legal port numbers for the ATA controller. Regardless, the caller of this
1402 function must probe the port number returned to see if an ATA device is actually
1403 present at that location on the ATA controller.
1404
1405 The GetNextPort() function retrieves the port number on an ATA controller. If on input
1406 Port is 0xFFFF, then the port number of the first port on the ATA controller is returned
1407 in Port and EFI_SUCCESS is returned.
1408
1409 If Port is a port number that was returned on a previous call to GetNextPort(), then the
1410 port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS
1411 is returned. If Port is not 0xFFFF and Port was not returned on a previous call to
1412 GetNextPort(), then EFI_INVALID_PARAMETER is returned.
1413
1414 If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is
1415 returned.
1416
1417 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1418 @param[in, out] Port On input, a pointer to the port number on the ATA controller.
1419 On output, a pointer to the next port number on the ATA
1420 controller. An input value of 0xFFFF retrieves the first port
1421 number on the ATA controller.
1422
1423 @retval EFI_SUCCESS The next port number on the ATA controller was returned in Port.
1424 @retval EFI_NOT_FOUND There are no more ports on this ATA controller.
1425 @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call
1426 to GetNextPort().
1427
1428 **/
1429 EFI_STATUS
1430 EFIAPI
1431 AtaPassThruGetNextPort (
1432 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1433 IN OUT UINT16 *Port
1434 )
1435 {
1436 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1437 LIST_ENTRY *Node;
1438 EFI_ATA_DEVICE_INFO *DeviceInfo;
1439
1440 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1441
1442 if (Port == NULL) {
1443 return EFI_INVALID_PARAMETER;
1444 }
1445
1446 if (*Port == 0xFFFF) {
1447 //
1448 // If the Port is all 0xFF's, start to traverse the device list from the beginning
1449 //
1450 Node = GetFirstNode (&Instance->DeviceList);
1451
1452 while (!IsNull (&Instance->DeviceList, Node)) {
1453 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1454
1455 if (DeviceInfo->Type == EfiIdeHarddisk) {
1456 *Port = DeviceInfo->Port;
1457 goto Exit;
1458 }
1459
1460 Node = GetNextNode (&Instance->DeviceList, Node);
1461 }
1462
1463 return EFI_NOT_FOUND;
1464 } else if (*Port == Instance->PreviousPort) {
1465 Node = GetFirstNode (&Instance->DeviceList);
1466
1467 while (!IsNull (&Instance->DeviceList, Node)) {
1468 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1469
1470 if ((DeviceInfo->Type == EfiIdeHarddisk) &&
1471 (DeviceInfo->Port > *Port)){
1472 *Port = DeviceInfo->Port;
1473 goto Exit;
1474 }
1475
1476 Node = GetNextNode (&Instance->DeviceList, Node);
1477 }
1478
1479 return EFI_NOT_FOUND;
1480 } else {
1481 //
1482 // Port is not equal to 0xFFFF and also not equal to previous return value
1483 //
1484 return EFI_INVALID_PARAMETER;
1485 }
1486
1487 Exit:
1488 //
1489 // Update the PreviousPort and PreviousPortMultiplier.
1490 //
1491 Instance->PreviousPort = *Port;
1492
1493 return EFI_SUCCESS;
1494 }
1495
1496 /**
1497 Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA
1498 controller. These can either be the list of port multiplier ports where ATA devices are actually
1499 present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this
1500 function must probe the port number and port multiplier port number returned to see if an ATA
1501 device is actually present.
1502
1503 The GetNextDevice() function retrieves the port multiplier port number of an ATA device
1504 present on a port of an ATA controller.
1505
1506 If PortMultiplierPort points to a port multiplier port number value that was returned on a
1507 previous call to GetNextDevice(), then the port multiplier port number of the next ATA device
1508 on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is
1509 returned.
1510
1511 If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first
1512 ATA device on port of the ATA controller is returned in PortMultiplierPort and
1513 EFI_SUCCESS is returned.
1514
1515 If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort
1516 was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER
1517 is returned.
1518
1519 If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of
1520 the ATA controller, then EFI_NOT_FOUND is returned.
1521
1522 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1523 @param[in] Port The port number present on the ATA controller.
1524 @param[in, out] PortMultiplierPort On input, a pointer to the port multiplier port number of an
1525 ATA device present on the ATA controller.
1526 If on input a PortMultiplierPort of 0xFFFF is specified,
1527 then the port multiplier port number of the first ATA device
1528 is returned. On output, a pointer to the port multiplier port
1529 number of the next ATA device present on an ATA controller.
1530
1531 @retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port
1532 of the ATA controller was returned in PortMultiplierPort.
1533 @retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller.
1534 @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not
1535 returned on a previous call to GetNextDevice().
1536
1537 **/
1538 EFI_STATUS
1539 EFIAPI
1540 AtaPassThruGetNextDevice (
1541 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1542 IN UINT16 Port,
1543 IN OUT UINT16 *PortMultiplierPort
1544 )
1545 {
1546 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1547 LIST_ENTRY *Node;
1548 EFI_ATA_DEVICE_INFO *DeviceInfo;
1549
1550 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1551
1552 if (PortMultiplierPort == NULL) {
1553 return EFI_INVALID_PARAMETER;
1554 }
1555
1556 if (Instance->PreviousPortMultiplier == 0xFFFF) {
1557 //
1558 // If a device is directly attached on a port, previous call to this
1559 // function will return the value 0xFFFF for PortMultiplierPort. In
1560 // this case, there should be no more device on the port multiplier.
1561 //
1562 Instance->PreviousPortMultiplier = 0;
1563 return EFI_NOT_FOUND;
1564 }
1565
1566 if (*PortMultiplierPort == Instance->PreviousPortMultiplier) {
1567 Node = GetFirstNode (&Instance->DeviceList);
1568
1569 while (!IsNull (&Instance->DeviceList, Node)) {
1570 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1571
1572 if ((DeviceInfo->Type == EfiIdeHarddisk) &&
1573 (DeviceInfo->Port == Port) &&
1574 (DeviceInfo->PortMultiplier > *PortMultiplierPort)){
1575 *PortMultiplierPort = DeviceInfo->PortMultiplier;
1576 goto Exit;
1577 }
1578
1579 Node = GetNextNode (&Instance->DeviceList, Node);
1580 }
1581
1582 return EFI_NOT_FOUND;
1583 } else if (*PortMultiplierPort == 0xFFFF) {
1584 //
1585 // If the PortMultiplierPort is all 0xFF's, start to traverse the device list from the beginning
1586 //
1587 Node = GetFirstNode (&Instance->DeviceList);
1588
1589 while (!IsNull (&Instance->DeviceList, Node)) {
1590 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
1591
1592 if ((DeviceInfo->Type == EfiIdeHarddisk) &&
1593 (DeviceInfo->Port == Port)){
1594 *PortMultiplierPort = DeviceInfo->PortMultiplier;
1595 goto Exit;
1596 }
1597
1598 Node = GetNextNode (&Instance->DeviceList, Node);
1599 }
1600
1601 return EFI_NOT_FOUND;
1602 } else {
1603 //
1604 // PortMultiplierPort is not equal to 0xFFFF and also not equal to previous return value
1605 //
1606 return EFI_INVALID_PARAMETER;
1607 }
1608
1609 Exit:
1610 //
1611 // Update the PreviousPort and PreviousPortMultiplier.
1612 //
1613 Instance->PreviousPortMultiplier = *PortMultiplierPort;
1614
1615 return EFI_SUCCESS;
1616 }
1617
1618 /**
1619 Used to allocate and build a device path node for an ATA device on an ATA controller.
1620
1621 The BuildDevicePath() function allocates and builds a single device node for the ATA
1622 device specified by Port and PortMultiplierPort. If the ATA device specified by Port and
1623 PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned.
1624 If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough
1625 resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned.
1626
1627 Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of
1628 DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort,
1629 and EFI_SUCCESS is returned.
1630
1631 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1632 @param[in] Port Port specifies the port number of the ATA device for which a
1633 device path node is to be allocated and built.
1634 @param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a
1635 device path node is to be allocated and built. If there is no
1636 port multiplier, then specify 0xFFFF.
1637 @param[in, out] DevicePath A pointer to a single device path node that describes the ATA
1638 device specified by Port and PortMultiplierPort. This function
1639 is responsible for allocating the buffer DevicePath with the
1640 boot service AllocatePool(). It is the caller's responsibility
1641 to free DevicePath when the caller is finished with DevicePath.
1642 @retval EFI_SUCCESS The device path node that describes the ATA device specified by
1643 Port and PortMultiplierPort was allocated and returned in DevicePath.
1644 @retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not
1645 exist on the ATA controller.
1646 @retval EFI_INVALID_PARAMETER DevicePath is NULL.
1647 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.
1648
1649 **/
1650 EFI_STATUS
1651 EFIAPI
1652 AtaPassThruBuildDevicePath (
1653 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1654 IN UINT16 Port,
1655 IN UINT16 PortMultiplierPort,
1656 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
1657 )
1658 {
1659 EFI_DEV_PATH *DevicePathNode;
1660 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1661 LIST_ENTRY *Node;
1662
1663 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1664
1665 //
1666 // Validate parameters passed in.
1667 //
1668 if (DevicePath == NULL) {
1669 return EFI_INVALID_PARAMETER;
1670 }
1671
1672 Node = SearchDeviceInfoList(Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
1673 if (Node == NULL) {
1674 return EFI_NOT_FOUND;
1675 }
1676
1677 if (Instance->Mode == EfiAtaIdeMode) {
1678 DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);
1679 if (DevicePathNode == NULL) {
1680 return EFI_OUT_OF_RESOURCES;
1681 }
1682 DevicePathNode->Atapi.PrimarySecondary = (UINT8) Port;
1683 DevicePathNode->Atapi.SlaveMaster = (UINT8) PortMultiplierPort;
1684 DevicePathNode->Atapi.Lun = 0;
1685 } else {
1686 DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);
1687 if (DevicePathNode == NULL) {
1688 return EFI_OUT_OF_RESOURCES;
1689 }
1690
1691 DevicePathNode->Sata.HBAPortNumber = Port;
1692 DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplierPort;
1693 DevicePathNode->Sata.Lun = 0;
1694 }
1695
1696 *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;
1697
1698 return EFI_SUCCESS;
1699 }
1700
1701 /**
1702 Used to translate a device path node to a port number and port multiplier port number.
1703
1704 The GetDevice() function determines the port and port multiplier port number associated with
1705 the ATA device described by DevicePath. If DevicePath is a device path node type that the
1706 ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents
1707 DevicePath into a port number and port multiplier port number.
1708
1709 If this translation is successful, then that port number and port multiplier port number are returned
1710 in Port and PortMultiplierPort, and EFI_SUCCESS is returned.
1711
1712 If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned.
1713
1714 If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then
1715 EFI_UNSUPPORTED is returned.
1716
1717 If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not
1718 a valid translation from DevicePath to a port number and port multiplier port number, then
1719 EFI_NOT_FOUND is returned.
1720
1721 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1722 @param[in] DevicePath A pointer to the device path node that describes an ATA device on the
1723 ATA controller.
1724 @param[out] Port On return, points to the port number of an ATA device on the ATA controller.
1725 @param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device
1726 on the ATA controller.
1727
1728 @retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier
1729 port number, and they were returned in Port and PortMultiplierPort.
1730 @retval EFI_INVALID_PARAMETER DevicePath is NULL.
1731 @retval EFI_INVALID_PARAMETER Port is NULL.
1732 @retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL.
1733 @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath.
1734 @retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier
1735 port number does not exist.
1736 **/
1737 EFI_STATUS
1738 EFIAPI
1739 AtaPassThruGetDevice (
1740 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1741 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
1742 OUT UINT16 *Port,
1743 OUT UINT16 *PortMultiplierPort
1744 )
1745 {
1746 EFI_DEV_PATH *DevicePathNode;
1747 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1748 LIST_ENTRY *Node;
1749
1750 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1751
1752 //
1753 // Validate parameters passed in.
1754 //
1755 if (DevicePath == NULL || Port == NULL || PortMultiplierPort == NULL) {
1756 return EFI_INVALID_PARAMETER;
1757 }
1758
1759 //
1760 // Check whether the DevicePath belongs to SCSI_DEVICE_PATH or ATAPI_DEVICE_PATH
1761 //
1762 if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
1763 ((DevicePath->SubType != MSG_SATA_DP) &&
1764 (DevicePath->SubType != MSG_ATAPI_DP)) ||
1765 ((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&
1766 (DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {
1767 return EFI_UNSUPPORTED;
1768 }
1769
1770 DevicePathNode = (EFI_DEV_PATH *) DevicePath;
1771
1772 if (Instance->Mode == EfiAtaIdeMode) {
1773 *Port = DevicePathNode->Atapi.PrimarySecondary;
1774 *PortMultiplierPort = DevicePathNode->Atapi.SlaveMaster;
1775 } else {
1776 *Port = DevicePathNode->Sata.HBAPortNumber;
1777 *PortMultiplierPort = DevicePathNode->Sata.PortMultiplierPortNumber;
1778 }
1779
1780 Node = SearchDeviceInfoList(Instance, *Port, *PortMultiplierPort, EfiIdeHarddisk);
1781
1782 if (Node == NULL) {
1783 return EFI_NOT_FOUND;
1784 }
1785
1786 return EFI_SUCCESS;
1787 }
1788
1789 /**
1790 Resets a specific port on the ATA controller. This operation also resets all the ATA devices
1791 connected to the port.
1792
1793 The ResetChannel() function resets an a specific port on an ATA controller. This operation
1794 resets all the ATA devices connected to that port. If this ATA controller does not support
1795 a reset port operation, then EFI_UNSUPPORTED is returned.
1796
1797 If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is
1798 returned.
1799
1800 If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned.
1801
1802 If the port reset operation is completed, then EFI_SUCCESS is returned.
1803
1804 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1805 @param[in] Port The port number on the ATA controller.
1806
1807 @retval EFI_SUCCESS The ATA controller port was reset.
1808 @retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation.
1809 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port.
1810 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port.
1811
1812 **/
1813 EFI_STATUS
1814 EFIAPI
1815 AtaPassThruResetPort (
1816 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1817 IN UINT16 Port
1818 )
1819 {
1820 //
1821 // Return success directly then upper layer driver could think reset port operation is done.
1822 //
1823 return EFI_SUCCESS;
1824 }
1825
1826 /**
1827 Resets an ATA device that is connected to an ATA controller.
1828
1829 The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort.
1830 If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is
1831 returned.
1832
1833 If Port or PortMultiplierPort are not in a valid range for this ATA controller, then
1834 EFI_INVALID_PARAMETER is returned.
1835
1836 If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR
1837 is returned.
1838
1839 If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is
1840 returned.
1841
1842 If the device reset operation is completed, then EFI_SUCCESS is returned.
1843
1844 @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.
1845 @param[in] Port Port represents the port number of the ATA device to be reset.
1846 @param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset.
1847 If there is no port multiplier, then specify 0xFFFF.
1848 @retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset.
1849 @retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation.
1850 @retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid.
1851 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device
1852 specified by Port and PortMultiplierPort.
1853 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device
1854 specified by Port and PortMultiplierPort.
1855
1856 **/
1857 EFI_STATUS
1858 EFIAPI
1859 AtaPassThruResetDevice (
1860 IN EFI_ATA_PASS_THRU_PROTOCOL *This,
1861 IN UINT16 Port,
1862 IN UINT16 PortMultiplierPort
1863 )
1864 {
1865 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1866 LIST_ENTRY *Node;
1867
1868 Instance = ATA_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1869
1870 Node = SearchDeviceInfoList (Instance, Port, PortMultiplierPort, EfiIdeHarddisk);
1871
1872 if (Node == NULL) {
1873 return EFI_INVALID_PARAMETER;
1874 }
1875
1876 //
1877 // Return success directly then upper layer driver could think reset device operation is done.
1878 //
1879 return EFI_SUCCESS;
1880 }
1881
1882 /**
1883 Submit ATAPI request sense command.
1884
1885 @param[in] This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
1886 @param[in] Target The Target is an array of size TARGET_MAX_BYTES and it represents
1887 the id of the SCSI device to send the SCSI Request Packet. Each
1888 transport driver may choose to utilize a subset of this size to suit the needs
1889 of transport target representation. For example, a Fibre Channel driver
1890 may use only 8 bytes (WWN) to represent an FC target.
1891 @param[in] Lun The LUN of the SCSI device to send the SCSI Request Packet.
1892 @param[in] SenseData A pointer to store sense data.
1893 @param[in] SenseDataLength The sense data length.
1894 @param[in] Timeout The timeout value to execute this cmd, uses 100ns as a unit.
1895
1896 @retval EFI_SUCCESS Send out the ATAPI packet command successfully.
1897 @retval EFI_DEVICE_ERROR The device failed to send data.
1898
1899 **/
1900 EFI_STATUS
1901 EFIAPI
1902 AtaPacketRequestSense (
1903 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
1904 IN UINT8 *Target,
1905 IN UINT64 Lun,
1906 IN VOID *SenseData,
1907 IN UINT8 SenseDataLength,
1908 IN UINT64 Timeout
1909 )
1910 {
1911 EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET Packet;
1912 UINT8 Cdb[12];
1913 EFI_STATUS Status;
1914
1915 ZeroMem (&Packet, sizeof (EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));
1916 ZeroMem (Cdb, 12);
1917
1918 Cdb[0] = ATA_CMD_REQUEST_SENSE;
1919 Cdb[4] = SenseDataLength;
1920
1921 Packet.Timeout = Timeout;
1922 Packet.Cdb = Cdb;
1923 Packet.CdbLength = 12;
1924 Packet.DataDirection = EFI_EXT_SCSI_DATA_DIRECTION_READ;
1925 Packet.InDataBuffer = SenseData;
1926 Packet.InTransferLength = SenseDataLength;
1927
1928 Status = ExtScsiPassThruPassThru (This, Target, Lun, &Packet, NULL);
1929
1930 return Status;
1931 }
1932
1933 /**
1934 Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function
1935 supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the
1936 nonblocking I/O functionality is optional.
1937
1938 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
1939 @param Target The Target is an array of size TARGET_MAX_BYTES and it represents
1940 the id of the SCSI device to send the SCSI Request Packet. Each
1941 transport driver may choose to utilize a subset of this size to suit the needs
1942 of transport target representation. For example, a Fibre Channel driver
1943 may use only 8 bytes (WWN) to represent an FC target.
1944 @param Lun The LUN of the SCSI device to send the SCSI Request Packet.
1945 @param Packet A pointer to the SCSI Request Packet to send to the SCSI device
1946 specified by Target and Lun.
1947 @param Event If nonblocking I/O is not supported then Event is ignored, and blocking
1948 I/O is performed. If Event is NULL, then blocking I/O is performed. If
1949 Event is not NULL and non blocking I/O is supported, then
1950 nonblocking I/O is performed, and Event will be signaled when the
1951 SCSI Request Packet completes.
1952
1953 @retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional
1954 commands, InTransferLength bytes were transferred from
1955 InDataBuffer. For write and bi-directional commands,
1956 OutTransferLength bytes were transferred by
1957 OutDataBuffer.
1958 @retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that
1959 could be transferred is returned in InTransferLength. For write
1960 and bi-directional commands, OutTransferLength bytes were
1961 transferred by OutDataBuffer.
1962 @retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
1963 SCSI Request Packets already queued. The caller may retry again later.
1964 @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request
1965 Packet.
1966 @retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid.
1967 @retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported
1968 by the host adapter. This includes the case of Bi-directional SCSI
1969 commands not supported by the implementation. The SCSI Request
1970 Packet was not sent, so no additional status information is available.
1971 @retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
1972
1973 **/
1974 EFI_STATUS
1975 EFIAPI
1976 ExtScsiPassThruPassThru (
1977 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
1978 IN UINT8 *Target,
1979 IN UINT64 Lun,
1980 IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
1981 IN EFI_EVENT Event OPTIONAL
1982 )
1983 {
1984 EFI_STATUS Status;
1985 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
1986 UINT8 Port;
1987 UINT8 PortMultiplier;
1988 EFI_ATA_HC_WORK_MODE Mode;
1989 LIST_ENTRY *Node;
1990 EFI_ATA_DEVICE_INFO *DeviceInfo;
1991 BOOLEAN SenseReq;
1992 EFI_SCSI_SENSE_DATA *PtrSenseData;
1993 UINTN SenseDataLen;
1994 EFI_STATUS SenseStatus;
1995
1996 SenseDataLen = 0;
1997 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
1998
1999 if ((Packet == NULL) || (Packet->Cdb == NULL)) {
2000 return EFI_INVALID_PARAMETER;
2001 }
2002
2003 //
2004 // Don't support variable length CDB
2005 //
2006 if ((Packet->CdbLength != 6) && (Packet->CdbLength != 10) &&
2007 (Packet->CdbLength != 12) && (Packet->CdbLength != 16)) {
2008 return EFI_INVALID_PARAMETER;
2009 }
2010
2011 if ((Packet->SenseDataLength != 0) && (Packet->SenseData == NULL)) {
2012 return EFI_INVALID_PARAMETER;
2013 }
2014
2015 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->InDataBuffer, This->Mode->IoAlign)) {
2016 return EFI_INVALID_PARAMETER;
2017 }
2018
2019 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->OutDataBuffer, This->Mode->IoAlign)) {
2020 return EFI_INVALID_PARAMETER;
2021 }
2022
2023 if ((This->Mode->IoAlign > 1) && !IS_ALIGNED(Packet->SenseData, This->Mode->IoAlign)) {
2024 return EFI_INVALID_PARAMETER;
2025 }
2026
2027 //
2028 // For ATAPI device, doesn't support multiple LUN device.
2029 //
2030 if (Lun != 0) {
2031 return EFI_INVALID_PARAMETER;
2032 }
2033
2034 //
2035 // The layout of Target array:
2036 // ________________________________________________________________________
2037 // | Byte 0 | Byte 1 | ... | TARGET_MAX_BYTES - 1 |
2038 // |_____________________|_____________________|_____|______________________|
2039 // | | The port multiplier | | |
2040 // | The port number | port number | N/A | N/A |
2041 // |_____________________|_____________________|_____|______________________|
2042 //
2043 // For ATAPI device, 2 bytes is enough to represent the location of SCSI device.
2044 //
2045 Port = Target[0];
2046 PortMultiplier = Target[1];
2047
2048 Node = SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom);
2049 if (Node == NULL) {
2050 return EFI_INVALID_PARAMETER;
2051 }
2052
2053 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2054
2055 //
2056 // ATA_CMD_IDENTIFY_DEVICE cmd is a ATA cmd but not a SCSI cmd.
2057 // Normally it should NOT be passed down through ExtScsiPassThru protocol interface.
2058 // But to response EFI_DISK_INFO.Identify() request from ScsiDisk, we should handle this command.
2059 //
2060 if (*((UINT8*)Packet->Cdb) == ATA_CMD_IDENTIFY_DEVICE) {
2061 CopyMem (Packet->InDataBuffer, DeviceInfo->IdentifyData, sizeof (EFI_IDENTIFY_DATA));
2062 //
2063 // For IDENTIFY DEVICE cmd, we don't need to get sense data.
2064 //
2065 Packet->SenseDataLength = 0;
2066 return EFI_SUCCESS;
2067 }
2068
2069 Mode = Instance->Mode;
2070 switch (Mode) {
2071 case EfiAtaIdeMode:
2072 //
2073 // Reassign IDE mode io port registers' base addresses
2074 //
2075 Status = GetIdeRegisterIoAddr (Instance->PciIo, Instance->IdeRegisters);
2076
2077 if (EFI_ERROR (Status)) {
2078 return Status;
2079 }
2080
2081 Status = AtaPacketCommandExecute (Instance->PciIo, &Instance->IdeRegisters[Port], Port, PortMultiplier, Packet);
2082 break;
2083 case EfiAtaAhciMode:
2084 if (PortMultiplier == 0xFF) {
2085 //
2086 // If there is no port multiplier, the PortMultiplier will be 0xFF
2087 // Here, we convert its value to 0 to follow the AHCI spec.
2088 //
2089 PortMultiplier = 0;
2090 }
2091 Status = AhciPacketCommandExecute (Instance->PciIo, &Instance->AhciRegisters, Port, PortMultiplier, Packet);
2092 break;
2093 default :
2094 Status = EFI_DEVICE_ERROR;
2095 break;
2096 }
2097
2098 //
2099 // If the cmd doesn't get executed correctly, then check sense data.
2100 //
2101 if (EFI_ERROR (Status) && (Packet->SenseDataLength != 0) && (*((UINT8*)Packet->Cdb) != ATA_CMD_REQUEST_SENSE)) {
2102 PtrSenseData = AllocateAlignedPages (EFI_SIZE_TO_PAGES (sizeof (EFI_SCSI_SENSE_DATA)), This->Mode->IoAlign);
2103 if (PtrSenseData == NULL) {
2104 return EFI_DEVICE_ERROR;
2105 }
2106
2107 for (SenseReq = TRUE; SenseReq;) {
2108 SenseStatus = AtaPacketRequestSense (
2109 This,
2110 Target,
2111 Lun,
2112 PtrSenseData,
2113 sizeof (EFI_SCSI_SENSE_DATA),
2114 Packet->Timeout
2115 );
2116 if (EFI_ERROR (SenseStatus)) {
2117 break;
2118 }
2119
2120 CopyMem ((UINT8*)Packet->SenseData + SenseDataLen, PtrSenseData, sizeof (EFI_SCSI_SENSE_DATA));
2121 SenseDataLen += sizeof (EFI_SCSI_SENSE_DATA);
2122
2123 //
2124 // no more sense key or number of sense keys exceeds predefined,
2125 // skip the loop.
2126 //
2127 if ((PtrSenseData->Sense_Key == EFI_SCSI_SK_NO_SENSE) ||
2128 (SenseDataLen + sizeof (EFI_SCSI_SENSE_DATA) > Packet->SenseDataLength)) {
2129 SenseReq = FALSE;
2130 }
2131 }
2132 FreeAlignedPages (PtrSenseData, EFI_SIZE_TO_PAGES (sizeof (EFI_SCSI_SENSE_DATA)));
2133 }
2134 //
2135 // Update the SenseDataLength field to the data length received.
2136 //
2137 Packet->SenseDataLength = (UINT8)SenseDataLen;
2138 return Status;
2139 }
2140
2141 /**
2142 Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These
2143 can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal
2144 Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the
2145 Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI
2146 channel.
2147
2148 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2149 @param Target On input, a pointer to the Target ID (an array of size
2150 TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
2151 On output, a pointer to the Target ID (an array of
2152 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
2153 channel. An input value of 0xF(all bytes in the array are 0xF) in the
2154 Target array retrieves the Target ID of the first SCSI device present on a
2155 SCSI channel.
2156 @param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI
2157 channel. On output, a pointer to the LUN of the next SCSI device present
2158 on a SCSI channel.
2159
2160 @retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI
2161 channel was returned in Target and Lun.
2162 @retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were
2163 not returned on a previous call to GetNextTargetLun().
2164 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
2165
2166 **/
2167 EFI_STATUS
2168 EFIAPI
2169 ExtScsiPassThruGetNextTargetLun (
2170 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2171 IN OUT UINT8 **Target,
2172 IN OUT UINT64 *Lun
2173 )
2174 {
2175 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2176 LIST_ENTRY *Node;
2177 EFI_ATA_DEVICE_INFO *DeviceInfo;
2178 UINT8 *Target8;
2179 UINT16 *Target16;
2180
2181 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2182
2183 if (Target == NULL || Lun == NULL) {
2184 return EFI_INVALID_PARAMETER;
2185 }
2186
2187 if (*Target == NULL) {
2188 return EFI_INVALID_PARAMETER;
2189 }
2190
2191 Target8 = *Target;
2192 Target16 = (UINT16 *)*Target;
2193
2194 if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {
2195 //
2196 // For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.
2197 // So the higher bytes in Target array should be 0xFF.
2198 //
2199 if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {
2200 return EFI_INVALID_PARAMETER;
2201 }
2202
2203 //
2204 // When Target is not all 0xFF's, compare 2 least significant bytes with
2205 // previous target id to see if it is returned by previous call.
2206 //
2207 if ((*Target16 != Instance->PreviousTargetId) ||
2208 (*Lun != Instance->PreviousLun)) {
2209 return EFI_INVALID_PARAMETER;
2210 }
2211
2212 //
2213 // Traverse the whole device list to find the next cdrom closed to
2214 // the device signified by Target[0] and Target[1].
2215 //
2216 // Note that we here use a tricky way to find the next cdrom :
2217 // All ata devices are detected and inserted into the device list
2218 // sequentially.
2219 //
2220 Node = GetFirstNode (&Instance->DeviceList);
2221
2222 while (!IsNull (&Instance->DeviceList, Node)) {
2223 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2224
2225 if ((DeviceInfo->Type == EfiIdeCdrom) &&
2226 ((Target8[0] < DeviceInfo->Port) ||
2227 ((Target8[0] == DeviceInfo->Port) &&
2228 (Target8[1] < (UINT8)DeviceInfo->PortMultiplier)))) {
2229 Target8[0] = (UINT8)DeviceInfo->Port;
2230 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2231 goto Exit;
2232 }
2233
2234 Node = GetNextNode (&Instance->DeviceList, Node);
2235 }
2236
2237 return EFI_NOT_FOUND;
2238 } else {
2239 //
2240 // If the array is all 0xFF's, start to traverse the device list from the beginning
2241 //
2242 Node = GetFirstNode (&Instance->DeviceList);
2243 while (!IsNull (&Instance->DeviceList, Node)) {
2244 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2245
2246 if (DeviceInfo->Type == EfiIdeCdrom) {
2247 Target8[0] = (UINT8)DeviceInfo->Port;
2248 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2249 goto Exit;
2250 }
2251
2252 Node = GetNextNode (&Instance->DeviceList, Node);
2253 }
2254
2255 return EFI_NOT_FOUND;
2256 }
2257
2258 Exit:
2259 *Lun = 0;
2260
2261 //
2262 // Update the PreviousTargetId.
2263 //
2264 Instance->PreviousTargetId = *Target16;
2265 Instance->PreviousLun = *Lun;
2266
2267 return EFI_SUCCESS;
2268 }
2269
2270 /**
2271 Used to allocate and build a device path node for a SCSI device on a SCSI channel.
2272
2273 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2274 @param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the
2275 Target ID of the SCSI device for which a device path node is to be
2276 allocated and built. Transport drivers may chose to utilize a subset of
2277 this size to suit the representation of targets. For example, a Fibre
2278 Channel driver may use only 8 bytes (WWN) in the array to represent a
2279 FC target.
2280 @param Lun The LUN of the SCSI device for which a device path node is to be
2281 allocated and built.
2282 @param DevicePath A pointer to a single device path node that describes the SCSI device
2283 specified by Target and Lun. This function is responsible for
2284 allocating the buffer DevicePath with the boot service
2285 AllocatePool(). It is the caller's responsibility to free
2286 DevicePath when the caller is finished with DevicePath.
2287
2288 @retval EFI_SUCCESS The device path node that describes the SCSI device specified by
2289 Target and Lun was allocated and returned in
2290 DevicePath.
2291 @retval EFI_INVALID_PARAMETER DevicePath is NULL.
2292 @retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist
2293 on the SCSI channel.
2294 @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.
2295
2296 **/
2297 EFI_STATUS
2298 EFIAPI
2299 ExtScsiPassThruBuildDevicePath (
2300 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2301 IN UINT8 *Target,
2302 IN UINT64 Lun,
2303 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
2304 )
2305 {
2306 EFI_DEV_PATH *DevicePathNode;
2307 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2308 UINT8 Port;
2309 UINT8 PortMultiplier;
2310
2311 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2312
2313 Port = Target[0];
2314 PortMultiplier = Target[1];
2315
2316 //
2317 // Validate parameters passed in.
2318 //
2319 if (DevicePath == NULL) {
2320 return EFI_INVALID_PARAMETER;
2321 }
2322
2323 //
2324 // can not build device path for the SCSI Host Controller.
2325 //
2326 if (Lun != 0) {
2327 return EFI_NOT_FOUND;
2328 }
2329
2330 if (SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom) == NULL) {
2331 return EFI_NOT_FOUND;
2332 }
2333
2334 if (Instance->Mode == EfiAtaIdeMode) {
2335 DevicePathNode = AllocateCopyPool (sizeof (ATAPI_DEVICE_PATH), &mAtapiDevicePathTemplate);
2336 if (DevicePathNode == NULL) {
2337 return EFI_OUT_OF_RESOURCES;
2338 }
2339
2340 DevicePathNode->Atapi.PrimarySecondary = Port;
2341 DevicePathNode->Atapi.SlaveMaster = PortMultiplier;
2342 DevicePathNode->Atapi.Lun = (UINT16) Lun;
2343 } else {
2344 DevicePathNode = AllocateCopyPool (sizeof (SATA_DEVICE_PATH), &mSataDevicePathTemplate);
2345 if (DevicePathNode == NULL) {
2346 return EFI_OUT_OF_RESOURCES;
2347 }
2348
2349 DevicePathNode->Sata.HBAPortNumber = Port;
2350 //
2351 // For CD-ROM working in the AHCI mode, only 8 bits are used to record
2352 // the PortMultiplier information. If the CD-ROM is directly attached
2353 // on a SATA port, the PortMultiplier should be translated from 0xFF
2354 // to 0xFFFF according to the UEFI spec.
2355 //
2356 DevicePathNode->Sata.PortMultiplierPortNumber = PortMultiplier == 0xFF ? 0xFFFF : PortMultiplier;
2357 DevicePathNode->Sata.Lun = (UINT16) Lun;
2358 }
2359
2360 *DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) DevicePathNode;
2361
2362 return EFI_SUCCESS;
2363 }
2364
2365 /**
2366 Used to translate a device path node to a Target ID and LUN.
2367
2368 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2369 @param DevicePath A pointer to a single device path node that describes the SCSI device
2370 on the SCSI channel.
2371 @param Target A pointer to the Target Array which represents the ID of a SCSI device
2372 on the SCSI channel.
2373 @param Lun A pointer to the LUN of a SCSI device on the SCSI channel.
2374
2375 @retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and
2376 LUN, and they were returned in Target and Lun.
2377 @retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL.
2378 @retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN
2379 does not exist.
2380 @retval EFI_UNSUPPORTED This driver does not support the device path node type in
2381 DevicePath.
2382
2383 **/
2384 EFI_STATUS
2385 EFIAPI
2386 ExtScsiPassThruGetTargetLun (
2387 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2388 IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
2389 OUT UINT8 **Target,
2390 OUT UINT64 *Lun
2391 )
2392 {
2393 EFI_DEV_PATH *DevicePathNode;
2394 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2395 LIST_ENTRY *Node;
2396
2397 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2398
2399 //
2400 // Validate parameters passed in.
2401 //
2402 if (DevicePath == NULL || Target == NULL || Lun == NULL) {
2403 return EFI_INVALID_PARAMETER;
2404 }
2405
2406 if (*Target == NULL) {
2407 return EFI_INVALID_PARAMETER;
2408 }
2409 //
2410 // Check whether the DevicePath belongs to SCSI_DEVICE_PATH
2411 //
2412 if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
2413 ((DevicePath->SubType != MSG_ATAPI_DP) &&
2414 (DevicePath->SubType != MSG_SATA_DP)) ||
2415 ((DevicePathNodeLength(DevicePath) != sizeof(ATAPI_DEVICE_PATH)) &&
2416 (DevicePathNodeLength(DevicePath) != sizeof(SATA_DEVICE_PATH)))) {
2417 return EFI_UNSUPPORTED;
2418 }
2419
2420 SetMem (*Target, TARGET_MAX_BYTES, 0xFF);
2421
2422 DevicePathNode = (EFI_DEV_PATH *) DevicePath;
2423
2424 if (Instance->Mode == EfiAtaIdeMode) {
2425 (*Target)[0] = (UINT8) DevicePathNode->Atapi.PrimarySecondary;
2426 (*Target)[1] = (UINT8) DevicePathNode->Atapi.SlaveMaster;
2427 *Lun = (UINT8) DevicePathNode->Atapi.Lun;
2428 } else {
2429 (*Target)[0] = (UINT8) DevicePathNode->Sata.HBAPortNumber;
2430 (*Target)[1] = (UINT8) DevicePathNode->Sata.PortMultiplierPortNumber;
2431 *Lun = (UINT8) DevicePathNode->Sata.Lun;
2432 }
2433
2434 Node = SearchDeviceInfoList(Instance, (*Target)[0], (*Target)[1], EfiIdeCdrom);
2435
2436 if (Node == NULL) {
2437 return EFI_NOT_FOUND;
2438 }
2439
2440 if (*Lun != 0) {
2441 return EFI_NOT_FOUND;
2442 }
2443
2444 return EFI_SUCCESS;
2445 }
2446
2447 /**
2448 Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel.
2449
2450 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2451
2452 @retval EFI_SUCCESS The SCSI channel was reset.
2453 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel.
2454 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel.
2455 @retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation.
2456
2457 **/
2458 EFI_STATUS
2459 EFIAPI
2460 ExtScsiPassThruResetChannel (
2461 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
2462 )
2463 {
2464 //
2465 // Return success directly then upper layer driver could think reset channel operation is done.
2466 //
2467 return EFI_SUCCESS;
2468 }
2469
2470 /**
2471 Resets a SCSI logical unit that is connected to a SCSI channel.
2472
2473 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2474 @param Target The Target is an array of size TARGET_MAX_BYTE and it represents the
2475 target port ID of the SCSI device containing the SCSI logical unit to
2476 reset. Transport drivers may chose to utilize a subset of this array to suit
2477 the representation of their targets.
2478 @param Lun The LUN of the SCSI device to reset.
2479
2480 @retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset.
2481 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.
2482 @retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device
2483 specified by Target and Lun.
2484 @retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation.
2485 @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device
2486 specified by Target and Lun.
2487
2488 **/
2489 EFI_STATUS
2490 EFIAPI
2491 ExtScsiPassThruResetTargetLun (
2492 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2493 IN UINT8 *Target,
2494 IN UINT64 Lun
2495 )
2496 {
2497 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2498 LIST_ENTRY *Node;
2499 UINT8 Port;
2500 UINT8 PortMultiplier;
2501
2502 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2503 //
2504 // For ATAPI device, doesn't support multiple LUN device.
2505 //
2506 if (Lun != 0) {
2507 return EFI_INVALID_PARAMETER;
2508 }
2509 //
2510 // The layout of Target array:
2511 // ________________________________________________________________________
2512 // | Byte 0 | Byte 1 | ... | TARGET_MAX_BYTES - 1 |
2513 // |_____________________|_____________________|_____|______________________|
2514 // | | The port multiplier | | |
2515 // | The port number | port number | N/A | N/A |
2516 // |_____________________|_____________________|_____|______________________|
2517 //
2518 // For ATAPI device, 2 bytes is enough to represent the location of SCSI device.
2519 //
2520 Port = Target[0];
2521 PortMultiplier = Target[1];
2522
2523 Node = SearchDeviceInfoList(Instance, Port, PortMultiplier, EfiIdeCdrom);
2524 if (Node == NULL) {
2525 return EFI_INVALID_PARAMETER;
2526 }
2527
2528 //
2529 // Return success directly then upper layer driver could think reset target LUN operation is done.
2530 //
2531 return EFI_SUCCESS;
2532 }
2533
2534 /**
2535 Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either
2536 be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs
2537 for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to
2538 see if a SCSI device is actually present at that location on the SCSI channel.
2539
2540 @param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
2541 @param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
2542 On output, a pointer to the Target ID (an array of
2543 TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
2544 channel. An input value of 0xF(all bytes in the array are 0xF) in the
2545 Target array retrieves the Target ID of the first SCSI device present on a
2546 SCSI channel.
2547
2548 @retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI
2549 channel was returned in Target.
2550 @retval EFI_INVALID_PARAMETER Target or Lun is NULL.
2551 @retval EFI_TIMEOUT Target array is not all 0xF, and Target was not
2552 returned on a previous call to GetNextTarget().
2553 @retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
2554
2555 **/
2556 EFI_STATUS
2557 EFIAPI
2558 ExtScsiPassThruGetNextTarget (
2559 IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
2560 IN OUT UINT8 **Target
2561 )
2562 {
2563 ATA_ATAPI_PASS_THRU_INSTANCE *Instance;
2564 LIST_ENTRY *Node;
2565 EFI_ATA_DEVICE_INFO *DeviceInfo;
2566 UINT8 *Target8;
2567 UINT16 *Target16;
2568
2569 Instance = EXT_SCSI_PASS_THRU_PRIVATE_DATA_FROM_THIS (This);
2570
2571 if (Target == NULL || *Target == NULL) {
2572 return EFI_INVALID_PARAMETER;
2573 }
2574
2575 Target8 = *Target;
2576 Target16 = (UINT16 *)*Target;
2577
2578 if (CompareMem(Target8, mScsiId, TARGET_MAX_BYTES) != 0) {
2579 //
2580 // For ATAPI device, we use 2 least significant bytes to represent the location of SCSI device.
2581 // So the higher bytes in Target array should be 0xFF.
2582 //
2583 if (CompareMem (&Target8[2], &mScsiId[2], TARGET_MAX_BYTES - 2) != 0) {
2584 return EFI_INVALID_PARAMETER;
2585 }
2586
2587 //
2588 // When Target is not all 0xFF's, compare 2 least significant bytes with
2589 // previous target id to see if it is returned by previous call.
2590 //
2591 if (*Target16 != Instance->PreviousTargetId) {
2592 return EFI_INVALID_PARAMETER;
2593 }
2594
2595 //
2596 // Traverse the whole device list to find the next cdrom closed to
2597 // the device signified by Target[0] and Target[1].
2598 //
2599 // Note that we here use a tricky way to find the next cdrom :
2600 // All ata devices are detected and inserted into the device list
2601 // sequentially.
2602 //
2603 Node = GetFirstNode (&Instance->DeviceList);
2604 while (!IsNull (&Instance->DeviceList, Node)) {
2605 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2606
2607 if ((DeviceInfo->Type == EfiIdeCdrom) &&
2608 ((Target8[0] < DeviceInfo->Port) ||
2609 ((Target8[0] == DeviceInfo->Port) &&
2610 (Target8[1] < (UINT8)DeviceInfo->PortMultiplier)))) {
2611 Target8[0] = (UINT8)DeviceInfo->Port;
2612 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2613 goto Exit;
2614 }
2615
2616 Node = GetNextNode (&Instance->DeviceList, Node);
2617 }
2618
2619 return EFI_NOT_FOUND;
2620 } else {
2621 //
2622 // If the array is all 0xFF's, start to traverse the device list from the beginning
2623 //
2624 Node = GetFirstNode (&Instance->DeviceList);
2625
2626 while (!IsNull (&Instance->DeviceList, Node)) {
2627 DeviceInfo = ATA_ATAPI_DEVICE_INFO_FROM_THIS (Node);
2628
2629 if (DeviceInfo->Type == EfiIdeCdrom) {
2630 Target8[0] = (UINT8)DeviceInfo->Port;
2631 Target8[1] = (UINT8)DeviceInfo->PortMultiplier;
2632 goto Exit;
2633 }
2634
2635 Node = GetNextNode (&Instance->DeviceList, Node);
2636 }
2637
2638 return EFI_NOT_FOUND;
2639 }
2640
2641 Exit:
2642 //
2643 // Update the PreviousTargetId.
2644 //
2645 Instance->PreviousTargetId = *Target16;
2646
2647 return EFI_SUCCESS;
2648 }
2649
EFI Development Kit II mirror for PVE