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[CDROM]
[reactos.git] / reactos / drivers / storage / class / cdrom / cdrom.c
1 /*
2 * PROJECT: ReactOS Storage Stack
3 * LICENSE: DDK - see license.txt in the root dir
4 * FILE: drivers/storage/cdrom/cdrom.c
5 * PURPOSE: CDROM driver
6 * PROGRAMMERS: Based on a source code sample from Microsoft NT4 DDK
7 */
8
9 #include "precomp.h"
10
11 #include <ntddk.h>
12 #include <scsi.h>
13 #include <ntdddisk.h>
14 #include <ntddcdrm.h>
15 #include <include/class2.h>
16 #include <stdio.h>
17
18 //#define NDEBUG
19 #include <debug.h>
20
21 #define CDB12GENERIC_LENGTH 12
22
23 typedef struct _XA_CONTEXT {
24
25 //
26 // Pointer to the device object.
27 //
28
29 PDEVICE_OBJECT DeviceObject;
30
31 //
32 // Pointer to the original request when
33 // a mode select must be sent.
34 //
35
36 PIRP OriginalRequest;
37
38 //
39 // Pointer to the mode select srb.
40 //
41
42 PSCSI_REQUEST_BLOCK Srb;
43 } XA_CONTEXT, *PXA_CONTEXT;
44
45 typedef struct _ERROR_RECOVERY_DATA {
46 MODE_PARAMETER_HEADER Header;
47 MODE_PARAMETER_BLOCK BlockDescriptor;
48 MODE_READ_RECOVERY_PAGE ReadRecoveryPage;
49 } ERROR_RECOVERY_DATA, *PERROR_RECOVERY_DATA;
50
51 typedef struct _ERROR_RECOVERY_DATA10 {
52 MODE_PARAMETER_HEADER10 Header10;
53 MODE_PARAMETER_BLOCK BlockDescriptor10;
54 MODE_READ_RECOVERY_PAGE ReadRecoveryPage10;
55 } ERROR_RECOVERY_DATA10, *PERROR_RECOVERY_DATA10;
56
57 //
58 // CdRom specific addition to device extension.
59 //
60
61 typedef struct _CDROM_DATA {
62
63 //
64 // Indicates whether an audio play operation
65 // is currently being performed.
66 //
67
68 BOOLEAN PlayActive;
69
70 //
71 // Indicates whether the blocksize used for user data
72 // is 2048 or 2352.
73 //
74
75 BOOLEAN RawAccess;
76
77 //
78 // Indicates whether 6 or 10 byte mode sense/select
79 // should be used.
80 //
81
82 USHORT XAFlags;
83
84 //
85 // Storage for the error recovery page. This is used
86 // as an easy method to switch block sizes.
87 //
88
89 union {
90 ERROR_RECOVERY_DATA u1;
91 ERROR_RECOVERY_DATA10 u2;
92 };
93
94
95 //
96 // Pointer to the original irp for the raw read.
97 //
98
99 PIRP SavedReadIrp;
100
101 //
102 // Used to protect accesses to the RawAccess flag.
103 //
104
105 KSPIN_LOCK FormSpinLock;
106
107 //
108 // Even if media change support is requested, there are some devices
109 // that are not supported. This flag will indicate that such a device
110 // is present when it is FALSE.
111 //
112
113 BOOLEAN MediaChangeSupported;
114
115 //
116 // The media change event is being supported. The media change timer
117 // should be running whenever this is true.
118 //
119
120 BOOLEAN MediaChange;
121
122 //
123 // The timer value to support media change events. This is a countdown
124 // value used to determine when to poll the device for a media change.
125 // The max value for the timer is 255 seconds.
126 //
127
128 UCHAR MediaChangeCountDown;
129
130 #if DBG
131 //
132 // Second timer to keep track of how long the media change IRP has been
133 // in use. If this value exceeds the timeout (#defined) then we should
134 // print out a message to the user and set the MediaChangeIrpLost flag
135 //
136
137 SHORT MediaChangeIrpTimeInUse;
138
139 //
140 // Set by CdRomTickHandler when we determine that the media change irp has
141 // been lost
142 //
143
144 BOOLEAN MediaChangeIrpLost;
145 #endif
146
147 UCHAR PadReserve; // use this for new flags.
148
149 //
150 // An IRP is allocated and kept for the duration that media change
151 // detection is in effect. If this is NULL and MediaChange is TRUE,
152 // the detection is in progress. This should always be NULL when
153 // MediaChange is FALSE.
154 //
155
156 PIRP MediaChangeIrp;
157
158 //
159 // The timer work list is a collection of IRPS that are prepared for
160 // submission, but need to allow some time to pass before they are
161 // run.
162 //
163
164 LIST_ENTRY TimerIrpList;
165 KSPIN_LOCK TimerIrpSpinLock;
166
167 } CDROM_DATA, *PCDROM_DATA;
168
169 #define DEVICE_EXTENSION_SIZE sizeof(DEVICE_EXTENSION) + sizeof(CDROM_DATA)
170 #define SCSI_CDROM_TIMEOUT 10
171 #define SCSI_CHANGER_BONUS_TIMEOUT 10
172 #define HITACHI_MODE_DATA_SIZE 12
173 #define MODE_DATA_SIZE 64
174 #define RAW_SECTOR_SIZE 2352
175 #define COOKED_SECTOR_SIZE 2048
176 #define MEDIA_CHANGE_DEFAULT_TIME 4
177 #define CDROM_SRB_LIST_SIZE 4
178
179
180 #if DBG
181
182 //
183 // Used to detect the loss of the autorun irp. The driver prints out a message
184 // (debug level 0) if this timeout ever occurs
185 //
186 #define MEDIA_CHANGE_TIMEOUT_TIME 300
187
188 #endif
189
190 #define PLAY_ACTIVE(DeviceExtension) (((PCDROM_DATA)(DeviceExtension + 1))->PlayActive)
191
192 #define MSF_TO_LBA(Minutes,Seconds,Frames) \
193 (ULONG)((60 * 75 * (Minutes)) + (75 * (Seconds)) + ((Frames) - 150))
194
195 #define LBA_TO_MSF(Lba,Minutes,Seconds,Frames) \
196 { \
197 (Minutes) = (UCHAR)(Lba / (60 * 75)); \
198 (Seconds) = (UCHAR)((Lba % (60 * 75)) / 75); \
199 (Frames) = (UCHAR)((Lba % (60 * 75)) % 75); \
200 }
201
202 #define DEC_TO_BCD(x) (((x / 10) << 4) + (x % 10))
203
204 //
205 // Define flags for XA, CDDA, and Mode Select/Sense
206 //
207
208 #define XA_USE_6_BYTE 0x01
209 #define XA_USE_10_BYTE 0x02
210 #define XA_USE_READ_CD 0x04
211 #define XA_NOT_SUPPORTED 0x08
212
213 #define PLEXTOR_CDDA 0x10
214 #define NEC_CDDA 0x20
215
216 //
217 // Sector types for READ_CD
218 //
219
220 #define ANY_SECTOR 0
221 #define CD_DA_SECTOR 1
222 #define YELLOW_MODE1_SECTOR 2
223 #define YELLOW_MODE2_SECTOR 3
224 #define FORM2_MODE1_SECTOR 4
225 #define FORM2_MODE2_SECTOR 5
226
227
228 #ifdef POOL_TAGGING
229 #ifdef ExAllocatePool
230 #undef ExAllocatePool
231 #endif
232 #define ExAllocatePool(a,b) ExAllocatePoolWithTag(a,b,'CscS')
233 #endif
234
235 NTSTATUS
236 NTAPI
237 DriverEntry(
238 IN PDRIVER_OBJECT DriverObject,
239 IN PUNICODE_STRING RegistryPath
240 );
241
242 BOOLEAN
243 NTAPI
244 ScsiCdRomFindDevices(
245 IN PDRIVER_OBJECT DriverObject,
246 IN PUNICODE_STRING RegistryPath,
247 IN PCLASS_INIT_DATA InitializationData,
248 IN PDEVICE_OBJECT PortDeviceObject,
249 IN ULONG PortNumber
250 );
251
252 NTSTATUS
253 NTAPI
254 ScsiCdRomOpenClose(
255 IN PDEVICE_OBJECT DeviceObject,
256 IN PIRP Irp
257 );
258
259 NTSTATUS
260 NTAPI
261 ScsiCdRomReadVerification(
262 IN PDEVICE_OBJECT DeviceObject,
263 IN PIRP Irp
264 );
265
266 NTSTATUS
267 NTAPI
268 ScsiCdRomSwitchMode(
269 IN PDEVICE_OBJECT DeviceObject,
270 IN ULONG SectorSize,
271 IN PIRP OriginalRequest
272 );
273
274 NTSTATUS
275 NTAPI
276 CdRomDeviceControl(
277 IN PDEVICE_OBJECT DeviceObject,
278 IN PIRP Irp
279 );
280
281 IO_COMPLETION_ROUTINE CdRomDeviceControlCompletion;
282 NTSTATUS
283 NTAPI
284 CdRomDeviceControlCompletion(
285 IN PDEVICE_OBJECT DeviceObject,
286 IN PIRP Irp,
287 IN PVOID Context
288 );
289
290 IO_COMPLETION_ROUTINE CdRomSetVolumeIntermediateCompletion;
291 NTSTATUS
292 NTAPI
293 CdRomSetVolumeIntermediateCompletion(
294 IN PDEVICE_OBJECT DeviceObject,
295 IN PIRP Irp,
296 IN PVOID Context
297 );
298
299 IO_COMPLETION_ROUTINE CdRomSwitchModeCompletion;
300 NTSTATUS
301 NTAPI
302 CdRomSwitchModeCompletion(
303 IN PDEVICE_OBJECT DeviceObject,
304 IN PIRP Irp,
305 IN PVOID Context
306 );
307
308 IO_COMPLETION_ROUTINE CdRomXACompletion;
309 NTSTATUS
310 NTAPI
311 CdRomXACompletion(
312 IN PDEVICE_OBJECT DeviceObject,
313 IN PIRP Irp,
314 IN PVOID Context
315 );
316
317 IO_COMPLETION_ROUTINE CdRomClassIoctlCompletion;
318 NTSTATUS
319 NTAPI
320 CdRomClassIoctlCompletion(
321 IN PDEVICE_OBJECT DeviceObject,
322 IN PIRP Irp,
323 IN PVOID Context
324 );
325
326 VOID
327 NTAPI
328 ScsiCdRomStartIo(
329 IN PDEVICE_OBJECT DeviceObject,
330 IN PIRP Irp
331 );
332
333 VOID
334 NTAPI
335 CdRomTickHandler(
336 IN PDEVICE_OBJECT DeviceObject,
337 IN PVOID Context
338 );
339
340 BOOLEAN
341 NTAPI
342 CdRomCheckRegistryForMediaChangeValue(
343 IN PUNICODE_STRING RegistryPath,
344 IN ULONG DeviceNumber
345 );
346
347 NTSTATUS
348 NTAPI
349 CdRomUpdateCapacity(
350 IN PDEVICE_EXTENSION DeviceExtension,
351 IN PIRP IrpToComplete,
352 IN OPTIONAL PKEVENT IoctlEvent
353 );
354
355 NTSTATUS
356 NTAPI
357 CreateCdRomDeviceObject(
358 IN PDRIVER_OBJECT DriverObject,
359 IN PDEVICE_OBJECT PortDeviceObject,
360 IN ULONG PortNumber,
361 IN PULONG DeviceCount,
362 PIO_SCSI_CAPABILITIES PortCapabilities,
363 IN PSCSI_INQUIRY_DATA LunInfo,
364 IN PCLASS_INIT_DATA InitializationData,
365 IN PUNICODE_STRING RegistryPath
366 );
367
368 VOID
369 NTAPI
370 ScanForSpecial(
371 PDEVICE_OBJECT DeviceObject,
372 PINQUIRYDATA InquiryData,
373 PIO_SCSI_CAPABILITIES PortCapabilities
374 );
375
376 BOOLEAN
377 NTAPI
378 CdRomIsPlayActive(
379 IN PDEVICE_OBJECT DeviceObject
380 );
381
382 VOID
383 NTAPI
384 HitachProcessError(
385 PDEVICE_OBJECT DeviceObject,
386 PSCSI_REQUEST_BLOCK Srb,
387 NTSTATUS *Status,
388 BOOLEAN *Retry
389 );
390
391 IO_COMPLETION_ROUTINE ToshibaProcessErrorCompletion;
392 VOID
393 NTAPI
394 ToshibaProcessError(
395 PDEVICE_OBJECT DeviceObject,
396 PSCSI_REQUEST_BLOCK Srb,
397 NTSTATUS *Status,
398 BOOLEAN *Retry
399 );
400
401 BOOLEAN
402 NTAPI
403 IsThisAnAtapiChanger(
404 IN PDEVICE_OBJECT DeviceObject,
405 OUT PULONG DiscsPresent
406 );
407
408 BOOLEAN
409 NTAPI
410 IsThisASanyo(
411 IN PDEVICE_OBJECT DeviceObject,
412 IN UCHAR PathId,
413 IN UCHAR TargetId
414 );
415
416 BOOLEAN
417 NTAPI
418 IsThisAMultiLunDevice(
419 IN PDEVICE_OBJECT DeviceObject,
420 IN PDEVICE_OBJECT PortDeviceObject
421 );
422
423 VOID
424 NTAPI
425 CdRomCreateNamedEvent(
426 IN PDEVICE_EXTENSION DeviceExtension,
427 IN ULONG DeviceNumber
428 );
429
430 #ifdef _PPC_
431 NTSTATUS
432 FindScsiAdapter (
433 IN HANDLE KeyHandle,
434 IN UNICODE_STRING ScsiUnicodeString[],
435 OUT PUCHAR IntermediateController
436 );
437 #endif
438
439 #ifdef ALLOC_PRAGMA
440 #pragma alloc_text(PAGE, DriverEntry)
441 #pragma alloc_text(PAGE, ScsiCdRomFindDevices)
442 #pragma alloc_text(PAGE, CreateCdRomDeviceObject)
443 #pragma alloc_text(PAGE, ScanForSpecial)
444 //#pragma alloc_text(PAGE, CdRomDeviceControl)
445 #pragma alloc_text(PAGE, HitachProcessError)
446 #pragma alloc_text(PAGE, CdRomIsPlayActive)
447 #pragma alloc_text(PAGE, ScsiCdRomReadVerification)
448 #pragma alloc_text(INIT, CdRomCheckRegistryForMediaChangeValue)
449 #pragma alloc_text(INIT, IsThisAnAtapiChanger)
450 #pragma alloc_text(INIT, IsThisASanyo)
451 #pragma alloc_text(INIT, IsThisAMultiLunDevice)
452 #pragma alloc_text(INIT, CdRomCreateNamedEvent)
453 #ifdef _PPC_
454 #pragma alloc_text(PAGE, FindScsiAdapter)
455 #endif
456 #endif
457
458 ULONG NoLoad = 0;
459
460 NTSTATUS
461 NTAPI
462 DriverEntry(
463 IN PDRIVER_OBJECT DriverObject,
464 IN PUNICODE_STRING RegistryPath
465 )
466
467 /*++
468
469 Routine Description:
470
471 This routine initializes the cdrom class driver.
472
473 Arguments:
474
475 DriverObject - Pointer to driver object created by system.
476
477 RegistryPath - Pointer to the name of the services node for this driver.
478
479 Return Value:
480
481 The function value is the final status from the initialization operation.
482
483 --*/
484
485 {
486 CLASS_INIT_DATA InitializationData;
487
488 if(NoLoad) {
489 return STATUS_NO_SUCH_DEVICE;
490 }
491
492 //
493 // Zero InitData
494 //
495
496 RtlZeroMemory (&InitializationData, sizeof(CLASS_INIT_DATA));
497
498 //
499 // Set sizes
500 //
501
502 InitializationData.InitializationDataSize = sizeof(CLASS_INIT_DATA);
503 InitializationData.DeviceExtensionSize = DEVICE_EXTENSION_SIZE;
504
505 InitializationData.DeviceType = FILE_DEVICE_CD_ROM;
506 InitializationData.DeviceCharacteristics = FILE_REMOVABLE_MEDIA | FILE_READ_ONLY_DEVICE;
507
508 //
509 // Set entry points
510 //
511
512 InitializationData.ClassReadWriteVerification = ScsiCdRomReadVerification;
513 InitializationData.ClassDeviceControl = CdRomDeviceControl;
514 InitializationData.ClassFindDevices = ScsiCdRomFindDevices;
515 InitializationData.ClassShutdownFlush = NULL;
516 InitializationData.ClassCreateClose = NULL;
517 InitializationData.ClassStartIo = ScsiCdRomStartIo;
518
519 //
520 // Call the class init routine
521 //
522
523 return ScsiClassInitialize( DriverObject, RegistryPath, &InitializationData);
524
525 } // end DriverEntry()
526
527 BOOLEAN
528 NTAPI
529 ScsiCdRomFindDevices(
530 IN PDRIVER_OBJECT DriverObject,
531 IN PUNICODE_STRING RegistryPath,
532 IN PCLASS_INIT_DATA InitializationData,
533 IN PDEVICE_OBJECT PortDeviceObject,
534 IN ULONG PortNumber
535 )
536
537 /*++
538
539 Routine Description:
540
541 Connect to SCSI port driver. Get adapter capabilities and
542 SCSI bus configuration information. Search inquiry data
543 for CDROM devices to process.
544
545 Arguments:
546
547 DriverObject - CDROM class driver object.
548 PortDeviceObject - SCSI port driver device object.
549 PortNumber - The system ordinal for this scsi adapter.
550
551 Return Value:
552
553 TRUE if CDROM device present on this SCSI adapter.
554
555 --*/
556
557 {
558 PIO_SCSI_CAPABILITIES portCapabilities;
559 PULONG cdRomCount;
560 PCHAR buffer;
561 PSCSI_INQUIRY_DATA lunInfo;
562 PSCSI_ADAPTER_BUS_INFO adapterInfo;
563 PINQUIRYDATA inquiryData;
564 ULONG scsiBus;
565 NTSTATUS status;
566 BOOLEAN foundDevice = FALSE;
567
568 //
569 // Call port driver to get adapter capabilities.
570 //
571
572 status = ScsiClassGetCapabilities(PortDeviceObject, &portCapabilities);
573
574 if (!NT_SUCCESS(status)) {
575 DebugPrint((1,"FindScsiDevices: ScsiClassGetCapabilities failed\n"));
576 return foundDevice;
577 }
578
579 //
580 // Call port driver to get inquiry information to find cdroms.
581 //
582
583 status = ScsiClassGetInquiryData(PortDeviceObject, (PSCSI_ADAPTER_BUS_INFO *) &buffer);
584
585 if (!NT_SUCCESS(status)) {
586 DebugPrint((1,"FindScsiDevices: ScsiClassGetInquiryData failed\n"));
587 return foundDevice;
588 }
589
590 //
591 // Get the address of the count of the number of cdroms already initialized.
592 //
593
594 cdRomCount = &IoGetConfigurationInformation()->CdRomCount;
595 adapterInfo = (PVOID) buffer;
596
597 //
598 // For each SCSI bus this adapter supports ...
599 //
600
601 for (scsiBus=0; scsiBus < adapterInfo->NumberOfBuses; scsiBus++) {
602
603 //
604 // Get the SCSI bus scan data for this bus.
605 //
606
607 lunInfo = (PVOID) (buffer + adapterInfo->BusData[scsiBus].InquiryDataOffset);
608
609 //
610 // Search list for unclaimed disk devices.
611 //
612
613 while (adapterInfo->BusData[scsiBus].InquiryDataOffset) {
614
615 inquiryData = (PVOID)lunInfo->InquiryData;
616
617 if ((inquiryData->DeviceType == READ_ONLY_DIRECT_ACCESS_DEVICE) &&
618 (inquiryData->DeviceTypeQualifier == 0) &&
619 (!lunInfo->DeviceClaimed)) {
620
621 DebugPrint((1,"FindScsiDevices: Vendor string is %.24s\n",
622 inquiryData->VendorId));
623
624 //
625 // Create device objects for cdrom
626 //
627
628 status = CreateCdRomDeviceObject(DriverObject,
629 PortDeviceObject,
630 PortNumber,
631 cdRomCount,
632 portCapabilities,
633 lunInfo,
634 InitializationData,
635 RegistryPath);
636
637 if (NT_SUCCESS(status)) {
638
639 //
640 // Increment system cdrom device count.
641 //
642
643 (*cdRomCount)++;
644
645 //
646 // Indicate that a cdrom device was found.
647 //
648
649 foundDevice = TRUE;
650 }
651 }
652
653 //
654 // Get next LunInfo.
655 //
656
657 if (lunInfo->NextInquiryDataOffset == 0) {
658 break;
659 }
660
661 lunInfo = (PVOID) (buffer + lunInfo->NextInquiryDataOffset);
662 }
663 }
664
665 ExFreePool(buffer);
666
667
668 return foundDevice;
669
670 } // end FindScsiCdRoms()
671
672 VOID
673 NTAPI
674 CdRomCreateNamedEvent(
675 IN PDEVICE_EXTENSION DeviceExtension,
676 IN ULONG DeviceNumber
677 )
678
679 /*++
680
681 Routine Description:
682
683 Create the named synchronization event for notification of media change
684 events to the system. The event is reset before this function returns.
685
686 Arguments:
687
688 DeviceExtension - the device extension pointer for storage of the event pointer.
689
690 Return Value:
691
692 None.
693
694 --*/
695
696 {
697 UNICODE_STRING unicodeString;
698 OBJECT_ATTRIBUTES objectAttributes;
699 CCHAR eventNameBuffer[MAXIMUM_FILENAME_LENGTH];
700 STRING eventNameString;
701 HANDLE handle;
702 NTSTATUS status;
703
704
705 sprintf(eventNameBuffer,"\\Device\\MediaChangeEvent%ld",
706 DeviceNumber);
707
708 RtlInitString(&eventNameString,
709 eventNameBuffer);
710
711 status = RtlAnsiStringToUnicodeString(&unicodeString,
712 &eventNameString,
713 TRUE);
714
715 if (!NT_SUCCESS(status)) {
716 return;
717 }
718
719 InitializeObjectAttributes(&objectAttributes,
720 &unicodeString,
721 OBJ_PERMANENT | OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
722 NULL,
723 NULL);
724
725 DeviceExtension->MediaChangeEvent = IoCreateSynchronizationEvent(&unicodeString,
726 &handle);
727 DeviceExtension->MediaChangeEventHandle = handle;
728
729 KeClearEvent(DeviceExtension->MediaChangeEvent);
730
731 RtlFreeUnicodeString(&unicodeString);
732 }
733
734 NTSTATUS
735 NTAPI
736 CreateCdRomDeviceObject(
737 IN PDRIVER_OBJECT DriverObject,
738 IN PDEVICE_OBJECT PortDeviceObject,
739 IN ULONG PortNumber,
740 IN PULONG DeviceCount,
741 IN PIO_SCSI_CAPABILITIES PortCapabilities,
742 IN PSCSI_INQUIRY_DATA LunInfo,
743 IN PCLASS_INIT_DATA InitializationData,
744 IN PUNICODE_STRING RegistryPath
745 )
746
747 /*++
748
749 Routine Description:
750
751 This routine creates an object for the device and then calls the
752 SCSI port driver for media capacity and sector size.
753
754 Arguments:
755
756 DriverObject - Pointer to driver object created by system.
757 PortDeviceObject - to connect to SCSI port driver.
758 DeviceCount - Number of previously installed CDROMs.
759 PortCapabilities - Pointer to structure returned by SCSI port
760 driver describing adapter capabilites (and limitations).
761 LunInfo - Pointer to configuration information for this device.
762
763 Return Value:
764
765 NTSTATUS
766
767 --*/
768 {
769 CHAR ntNameBuffer[64];
770 NTSTATUS status;
771 BOOLEAN changerDevice;
772 SCSI_REQUEST_BLOCK srb;
773 ULONG length;
774 PCDROM_DATA cddata;
775 PCDB cdb;
776 PVOID senseData = NULL;
777 PDEVICE_OBJECT deviceObject = NULL;
778 PDEVICE_EXTENSION deviceExtension = NULL;
779 PUCHAR buffer;
780 ULONG bps;
781 ULONG lastBit;
782 ULONG timeOut;
783 BOOLEAN srbListInitialized = FALSE;
784
785 //
786 // Claim the device. Note that any errors after this
787 // will goto the generic handler, where the device will
788 // be released.
789 //
790
791 status = ScsiClassClaimDevice(PortDeviceObject,
792 LunInfo,
793 FALSE,
794 &PortDeviceObject);
795
796 if (!NT_SUCCESS(status)) {
797 return(status);
798 }
799
800 //
801 // Create device object for this device.
802 //
803
804 sprintf(ntNameBuffer,
805 "\\Device\\CdRom%lu",
806 *DeviceCount);
807
808 status = ScsiClassCreateDeviceObject(DriverObject,
809 ntNameBuffer,
810 NULL,
811 &deviceObject,
812 InitializationData);
813
814 if (!NT_SUCCESS(status)) {
815 DebugPrint((1,"CreateCdRomDeviceObjects: Can not create device %s\n",
816 ntNameBuffer));
817
818 goto CreateCdRomDeviceObjectExit;
819 }
820
821 //
822 // Indicate that IRPs should include MDLs.
823 //
824
825 deviceObject->Flags |= DO_DIRECT_IO;
826
827 //
828 // Set up required stack size in device object.
829 //
830
831 deviceObject->StackSize = PortDeviceObject->StackSize + 2;
832
833 deviceExtension = deviceObject->DeviceExtension;
834
835 //
836 // Allocate spinlock for split request completion.
837 //
838
839 KeInitializeSpinLock(&deviceExtension->SplitRequestSpinLock);
840
841 //
842 // This is the physical device.
843 //
844
845 deviceExtension->PhysicalDevice = deviceObject;
846
847 //
848 // Initialize lock count to zero. The lock count is used to
849 // disable the ejection mechanism when media is mounted.
850 //
851
852 deviceExtension->LockCount = 0;
853
854 //
855 // Save system cdrom number
856 //
857
858 deviceExtension->DeviceNumber = *DeviceCount;
859
860 //
861 // Copy port device object to device extension.
862 //
863
864 deviceExtension->PortDeviceObject = PortDeviceObject;
865
866 //
867 // Set the alignment requirements for the device based on the
868 // host adapter requirements
869 //
870
871 if (PortDeviceObject->AlignmentRequirement > deviceObject->AlignmentRequirement) {
872 deviceObject->AlignmentRequirement = PortDeviceObject->AlignmentRequirement;
873 }
874
875 //
876 // Save address of port driver capabilities.
877 //
878
879 deviceExtension->PortCapabilities = PortCapabilities;
880
881 //
882 // Clear SRB flags.
883 //
884
885 deviceExtension->SrbFlags = 0;
886 deviceExtension->SrbFlags |= SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
887
888 //
889 // Allocate request sense buffer.
890 //
891
892 senseData = ExAllocatePool(NonPagedPoolCacheAligned, SENSE_BUFFER_SIZE);
893
894 if (senseData == NULL) {
895
896 //
897 // The buffer cannot be allocated.
898 //
899
900 status = STATUS_INSUFFICIENT_RESOURCES;
901 goto CreateCdRomDeviceObjectExit;
902 }
903
904 //
905 // Set the sense data pointer in the device extension.
906 //
907
908 deviceExtension->SenseData = senseData;
909
910 //
911 // CDROMs are not partitionable so starting offset is 0.
912 //
913
914 deviceExtension->StartingOffset.LowPart = 0;
915 deviceExtension->StartingOffset.HighPart = 0;
916
917 //
918 // Path/TargetId/LUN describes a device location on the SCSI bus.
919 // This information comes from the LunInfo buffer.
920 //
921
922 deviceExtension->PortNumber = (UCHAR)PortNumber;
923 deviceExtension->PathId = LunInfo->PathId;
924 deviceExtension->TargetId = LunInfo->TargetId;
925 deviceExtension->Lun = LunInfo->Lun;
926
927 //
928 // Set timeout value in seconds.
929 //
930
931 timeOut = ScsiClassQueryTimeOutRegistryValue(RegistryPath);
932 if (timeOut) {
933 deviceExtension->TimeOutValue = timeOut;
934 } else {
935 deviceExtension->TimeOutValue = SCSI_CDROM_TIMEOUT;
936 }
937
938 //
939 // Build the lookaside list for srb's for the physical disk. Should only
940 // need a couple.
941 //
942
943 ScsiClassInitializeSrbLookasideList(deviceExtension,
944 CDROM_SRB_LIST_SIZE);
945
946 srbListInitialized = TRUE;
947
948 //
949 // Back pointer to device object.
950 //
951
952 deviceExtension->DeviceObject = deviceObject;
953
954 //
955 // Allocate buffer for drive geometry.
956 //
957
958 deviceExtension->DiskGeometry =
959 ExAllocatePool(NonPagedPool, sizeof(DISK_GEOMETRY_EX));
960
961 if (deviceExtension->DiskGeometry == NULL) {
962
963 status = STATUS_INSUFFICIENT_RESOURCES;
964 goto CreateCdRomDeviceObjectExit;
965 }
966
967 //
968 // Set up media change support defaults.
969 //
970
971 cddata = (PCDROM_DATA)(deviceExtension + 1);
972
973 KeInitializeSpinLock(&cddata->FormSpinLock);
974 KeInitializeSpinLock(&cddata->TimerIrpSpinLock);
975 InitializeListHead(&cddata->TimerIrpList);
976
977 cddata->MediaChangeCountDown = MEDIA_CHANGE_DEFAULT_TIME;
978 cddata->MediaChangeSupported = FALSE;
979 cddata->MediaChange = FALSE;
980
981 //
982 // Assume that there is initially no media in the device
983 // only notify upper layers if there is something there
984 //
985
986 deviceExtension->MediaChangeNoMedia = TRUE;
987 cddata->MediaChangeIrp = NULL;
988 #if DBG
989 cddata->MediaChangeIrpTimeInUse = 0;
990 cddata->MediaChangeIrpLost = FALSE;
991 #endif
992
993 //
994 // Scan for Scsi controllers that require special processing.
995 //
996
997 ScanForSpecial(deviceObject,
998 (PINQUIRYDATA) LunInfo->InquiryData,
999 PortCapabilities);
1000
1001 //
1002 // Do READ CAPACITY. This SCSI command
1003 // returns the last sector address on the device
1004 // and the bytes per sector.
1005 // These are used to calculate the drive capacity
1006 // in bytes.
1007 //
1008
1009 status = ScsiClassReadDriveCapacity(deviceObject);
1010 bps = deviceExtension->DiskGeometry->Geometry.BytesPerSector;
1011
1012 if (!NT_SUCCESS(status) || !bps) {
1013
1014 DebugPrint((1,
1015 "CreateCdRomDeviceObjects: Can't read capacity for device %s\n",
1016 ntNameBuffer));
1017
1018 //
1019 // Set disk geometry to default values (per ISO 9660).
1020 //
1021
1022 bps = 2048;
1023 deviceExtension->SectorShift = 11;
1024 deviceExtension->PartitionLength.QuadPart = (LONGLONG)(0x7fffffff);
1025 } else {
1026
1027 //
1028 // Insure that bytes per sector is a power of 2
1029 // This corrects a problem with the HP 4020i CDR where it
1030 // returns an incorrect number for bytes per sector.
1031 //
1032
1033 lastBit = (ULONG) -1;
1034 while (bps) {
1035 lastBit++;
1036 bps = bps >> 1;
1037 }
1038
1039 bps = 1 << lastBit;
1040 }
1041 deviceExtension->DiskGeometry->Geometry.BytesPerSector = bps;
1042 DebugPrint((2, "CreateCdRomDeviceObject: Calc'd bps = %x\n", bps));
1043
1044 //
1045 // Check to see if this is some sort of changer device
1046 //
1047
1048 changerDevice = FALSE;
1049
1050 //
1051 // Search for devices that have special requirements for media
1052 // change support.
1053 //
1054
1055 if (deviceExtension->Lun > 0) {
1056 changerDevice = TRUE;
1057 }
1058
1059 if (!changerDevice) {
1060 changerDevice = IsThisASanyo(deviceObject, deviceExtension->PathId,
1061 deviceExtension->TargetId);
1062 }
1063
1064 if (!changerDevice) {
1065 ULONG tmp;
1066 changerDevice = IsThisAnAtapiChanger(deviceObject, &tmp);
1067 }
1068
1069 if (!changerDevice) {
1070 changerDevice = IsThisAMultiLunDevice(deviceObject, PortDeviceObject);
1071 }
1072
1073 //
1074 // If it is a changer device, increment the timeout to take platter-swapping
1075 // time into account
1076 //
1077
1078 if(changerDevice) {
1079 deviceExtension->TimeOutValue += SCSI_CHANGER_BONUS_TIMEOUT;
1080 }
1081
1082 //
1083 // Create the media change named event. If this succeeds then continue
1084 // initializing the media change support data items.
1085 //
1086
1087 CdRomCreateNamedEvent(deviceExtension,*DeviceCount);
1088 if (deviceExtension->MediaChangeEvent) {
1089
1090 //
1091 // If this is not a changer, get an IRP for the timer request
1092 // and initialize the timer.
1093 //
1094
1095 if (!changerDevice) {
1096
1097 //
1098 // Not a changer device - continue with media change initialization.
1099 // Determine if the user actually wants media change events.
1100 //
1101
1102 if (CdRomCheckRegistryForMediaChangeValue(RegistryPath, *DeviceCount)) {
1103 PIO_STACK_LOCATION irpStack;
1104 PSCSI_REQUEST_BLOCK srb;
1105 PIRP irp;
1106
1107 //
1108 // User wants it - preallocate IRP and SRB.
1109 //
1110
1111 irp = IoAllocateIrp((CCHAR)(deviceObject->StackSize+1),
1112 FALSE);
1113 if (irp) {
1114 PVOID buffer;
1115
1116 srb = ExAllocatePool(NonPagedPool, sizeof(SCSI_REQUEST_BLOCK));
1117 buffer = ExAllocatePool(NonPagedPoolCacheAligned, SENSE_BUFFER_SIZE);
1118
1119 if (srb && buffer) {
1120 PCDB cdb;
1121
1122 //
1123 // All resources have been allocated set up the IRP.
1124 //
1125
1126 IoSetNextIrpStackLocation(irp);
1127 irpStack = IoGetCurrentIrpStackLocation(irp);
1128 irpStack->DeviceObject = deviceObject;
1129 irpStack = IoGetNextIrpStackLocation(irp);
1130 cddata->MediaChangeIrp = irp;
1131 irpStack->Parameters.Scsi.Srb = srb;
1132
1133 //
1134 // Initialize the SRB
1135 //
1136
1137 RtlZeroMemory(srb, sizeof(SCSI_REQUEST_BLOCK));
1138
1139 srb->CdbLength = 6;
1140 srb->TimeOutValue = deviceExtension->TimeOutValue * 2;
1141 srb->QueueTag = SP_UNTAGGED;
1142 srb->QueueAction = SRB_SIMPLE_TAG_REQUEST;
1143 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
1144 srb->PathId = deviceExtension->PathId;
1145 srb->TargetId = deviceExtension->TargetId;
1146 srb->Lun = deviceExtension->Lun;
1147 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
1148
1149 //
1150 // Initialize and set up the sense information buffer
1151 //
1152
1153 RtlZeroMemory(buffer, SENSE_BUFFER_SIZE);
1154 srb->SenseInfoBuffer = buffer;
1155 srb->SenseInfoBufferLength = SENSE_BUFFER_SIZE;
1156
1157 //
1158 // Initialize the CDB
1159 //
1160
1161 cdb = (PCDB)&srb->Cdb[0];
1162 cdb->CDB6GENERIC.OperationCode = SCSIOP_TEST_UNIT_READY;
1163 cdb->CDB6GENERIC.LogicalUnitNumber = deviceExtension->Lun;
1164
1165 //
1166 // It is ok to support media change events on this device.
1167 //
1168
1169 cddata->MediaChangeSupported = TRUE;
1170 cddata->MediaChange = TRUE;
1171
1172 } else {
1173
1174 if (srb) {
1175 ExFreePool(srb);
1176 }
1177 if (buffer) {
1178 ExFreePool(buffer);
1179 }
1180 IoFreeIrp(irp);
1181 }
1182 }
1183 } else {
1184 deviceExtension->MediaChangeEvent = NULL;
1185 }
1186 } else {
1187 deviceExtension->MediaChangeEvent = NULL;
1188 }
1189 }
1190
1191 //
1192 // Assume use of 6-byte mode sense/select for now.
1193 //
1194
1195 cddata->XAFlags |= XA_USE_6_BYTE;
1196
1197 //
1198 // Build and issue mode sense with Read error recovery page. This will be used to change
1199 // block size in case of any raw reads (Mode 2, Form 2).
1200 //
1201
1202 length = (sizeof(MODE_READ_RECOVERY_PAGE) + MODE_BLOCK_DESC_LENGTH + MODE_HEADER_LENGTH);
1203
1204 RtlZeroMemory(&srb, sizeof(SCSI_REQUEST_BLOCK));
1205
1206 srb.CdbLength = 6;
1207 cdb = (PCDB)srb.Cdb;
1208
1209 //
1210 // Set timeout value from device extension.
1211 //
1212
1213 srb.TimeOutValue = deviceExtension->TimeOutValue;
1214
1215 //
1216 // Build the MODE SENSE CDB. The data returned will be kept in the device extension
1217 // and used to set block size.
1218 //
1219
1220 cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE;
1221 cdb->MODE_SENSE.PageCode = 0x1;
1222 cdb->MODE_SENSE.AllocationLength = (UCHAR)length;
1223
1224 buffer = ExAllocatePool(NonPagedPoolCacheAligned, (sizeof(MODE_READ_RECOVERY_PAGE) + MODE_BLOCK_DESC_LENGTH + MODE_HEADER_LENGTH10));
1225 if (!buffer) {
1226 status = STATUS_INSUFFICIENT_RESOURCES;
1227 goto CreateCdRomDeviceObjectExit;
1228 }
1229
1230 status = ScsiClassSendSrbSynchronous(deviceObject,
1231 &srb,
1232 buffer,
1233 length,
1234 FALSE);
1235 if (!NT_SUCCESS(status)) {
1236
1237 //
1238 // May be Atapi, try 10-byte.
1239 //
1240
1241 length = (sizeof(MODE_READ_RECOVERY_PAGE) + MODE_BLOCK_DESC_LENGTH + MODE_HEADER_LENGTH10);
1242
1243 RtlZeroMemory(&srb, sizeof(SCSI_REQUEST_BLOCK));
1244
1245 //
1246 // Build the MODE SENSE CDB.
1247 //
1248
1249 srb.CdbLength = 10;
1250 cdb = (PCDB)srb.Cdb;
1251
1252 //
1253 // Set timeout value from device extension.
1254 //
1255
1256 srb.TimeOutValue = deviceExtension->TimeOutValue;
1257
1258 cdb->MODE_SENSE10.OperationCode = SCSIOP_MODE_SENSE10;
1259 cdb->MODE_SENSE10.PageCode = 0x1;
1260
1261 cdb->MODE_SENSE10.AllocationLength[0] = (UCHAR)(length >> 8);
1262 cdb->MODE_SENSE10.AllocationLength[1] = (UCHAR)(length & 0xFF);
1263
1264 status = ScsiClassSendSrbSynchronous(deviceObject,
1265 &srb,
1266 buffer,
1267 length,
1268 FALSE);
1269 if (status == STATUS_DATA_OVERRUN) {
1270
1271 //
1272 // Build and issue the ReadCd command to ensure that this device supports it.
1273 //
1274
1275 RtlZeroMemory(cdb, 12);
1276
1277 cdb->READ_CD.OperationCode = SCSIOP_READ_CD;
1278
1279 status = ScsiClassSendSrbSynchronous(deviceObject,
1280 &srb,
1281 NULL,
1282 0,
1283 FALSE);
1284
1285 //
1286 // If the command wasn't rejected then support the READ_CD.
1287 //
1288
1289 if (NT_SUCCESS(status) || (status == STATUS_NO_MEDIA_IN_DEVICE)) {
1290
1291 //
1292 // Using Read CD precludes issueing a mode select to
1293 // set the user data size. So, no buffer copy is
1294 // necessary.
1295 //
1296
1297 cddata->XAFlags &= ~XA_USE_6_BYTE;
1298 cddata->XAFlags |= XA_USE_READ_CD | XA_USE_10_BYTE;
1299 } else {
1300
1301 RtlCopyMemory(&cddata->u1.Header, buffer, sizeof(ERROR_RECOVERY_DATA10));
1302 cddata->u1.Header.ModeDataLength = 0;
1303
1304 cddata->XAFlags &= ~XA_USE_6_BYTE;
1305 cddata->XAFlags |= XA_USE_10_BYTE;
1306 }
1307
1308 } else if (NT_SUCCESS(status)) {
1309
1310 RtlCopyMemory(&cddata->u1.Header, buffer, sizeof(ERROR_RECOVERY_DATA10));
1311 cddata->u1.Header.ModeDataLength = 0;
1312
1313 cddata->XAFlags &= ~XA_USE_6_BYTE;
1314 cddata->XAFlags |= XA_USE_10_BYTE;
1315
1316 } else {
1317 cddata->XAFlags |= XA_NOT_SUPPORTED;
1318 }
1319 } else {
1320 RtlCopyMemory(&cddata->u1.Header, buffer, sizeof(ERROR_RECOVERY_DATA));
1321 cddata->u1.Header.ModeDataLength = 0;
1322 }
1323
1324 ExFreePool(buffer);
1325
1326 //
1327 // Start the timer now regardless of if Autorun is enabled.
1328 // The timer must run forever since IoStopTimer faults.
1329 //
1330
1331 IoInitializeTimer(deviceObject, CdRomTickHandler, NULL);
1332 IoStartTimer(deviceObject);
1333
1334 return(STATUS_SUCCESS);
1335
1336 CreateCdRomDeviceObjectExit:
1337
1338 //
1339 // Release the device since an error occured.
1340 //
1341
1342 ScsiClassClaimDevice(PortDeviceObject,
1343 LunInfo,
1344 TRUE,
1345 NULL);
1346
1347 if (senseData != NULL) {
1348 ExFreePool(senseData);
1349 }
1350
1351 if (deviceExtension->DiskGeometry != NULL) {
1352 ExFreePool(deviceExtension->DiskGeometry);
1353 }
1354
1355 if (deviceObject != NULL) {
1356 if (srbListInitialized) {
1357 ExDeleteNPagedLookasideList(&deviceExtension->SrbLookasideListHead);
1358 }
1359 IoDeleteDevice(deviceObject);
1360 }
1361
1362
1363 return status;
1364
1365 } // end CreateCdRomDeviceObject()
1366
1367 VOID
1368 NTAPI
1369 ScsiCdRomStartIo(
1370 IN PDEVICE_OBJECT DeviceObject,
1371 IN PIRP Irp
1372 )
1373 {
1374
1375 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
1376 PIO_STACK_LOCATION currentIrpStack = IoGetCurrentIrpStackLocation(Irp);
1377 PIO_STACK_LOCATION nextIrpStack = IoGetNextIrpStackLocation(Irp);
1378 PIO_STACK_LOCATION irpStack;
1379 PIRP irp2 = NULL;
1380 ULONG transferPages;
1381 ULONG transferByteCount = currentIrpStack->Parameters.Read.Length;
1382 ULONG maximumTransferLength = deviceExtension->PortCapabilities->MaximumTransferLength;
1383 PCDROM_DATA cdData;
1384 PSCSI_REQUEST_BLOCK srb = NULL;
1385 PCDB cdb;
1386 PUCHAR senseBuffer = NULL;
1387 PVOID dataBuffer;
1388 NTSTATUS status;
1389 BOOLEAN use6Byte;
1390
1391 //
1392 // Mark IRP with status pending.
1393 //
1394
1395 IoMarkIrpPending(Irp);
1396
1397 //
1398 // If the flag is set in the device object, force a verify.
1399 //
1400
1401 if (DeviceObject->Flags & DO_VERIFY_VOLUME) {
1402 DebugPrint((2, "ScsiCdRomStartIo: [%lx] Volume needs verified\n", Irp));
1403 if (!(currentIrpStack->Flags & SL_OVERRIDE_VERIFY_VOLUME)) {
1404
1405 if (Irp->Tail.Overlay.Thread) {
1406 IoSetHardErrorOrVerifyDevice(Irp, DeviceObject);
1407 }
1408
1409 Irp->IoStatus.Status = STATUS_VERIFY_REQUIRED;
1410
1411 DebugPrint((2, "ScsiCdRomStartIo: [%lx] Calling UpdateCapcity - "
1412 "ioctl event = %lx\n",
1413 Irp,
1414 nextIrpStack->Parameters.Others.Argument1
1415 ));
1416
1417 //
1418 // our device control dispatch routine stores an event in the next
1419 // stack location to signal when startio has completed. We need to
1420 // pass this in so that the update capacity completion routine can
1421 // set it rather than completing the Irp.
1422 //
1423
1424 status = CdRomUpdateCapacity(deviceExtension,
1425 Irp,
1426 nextIrpStack->Parameters.Others.Argument1
1427 );
1428
1429 DebugPrint((2, "ScsiCdRomStartIo: [%lx] UpdateCapacity returned %lx\n", Irp, status));
1430 ASSERT(status == STATUS_PENDING);
1431 return;
1432 }
1433 }
1434
1435 cdData = (PCDROM_DATA)(deviceExtension + 1);
1436 use6Byte = cdData->XAFlags & XA_USE_6_BYTE;
1437
1438 if (currentIrpStack->MajorFunction == IRP_MJ_READ) {
1439
1440 //
1441 // Add partition byte offset to make starting byte relative to
1442 // beginning of disk. In addition, add in skew for DM Driver, if any.
1443 //
1444
1445 currentIrpStack->Parameters.Read.ByteOffset.QuadPart += (deviceExtension->StartingOffset.QuadPart);
1446
1447 //
1448 // Calculate number of pages in this transfer.
1449 //
1450
1451 transferPages = ADDRESS_AND_SIZE_TO_SPAN_PAGES(MmGetMdlVirtualAddress(Irp->MdlAddress),
1452 currentIrpStack->Parameters.Read.Length);
1453
1454 //
1455 // Check if request length is greater than the maximum number of
1456 // bytes that the hardware can transfer.
1457 //
1458
1459 if (cdData->RawAccess) {
1460
1461 ASSERT(!(cdData->XAFlags & XA_USE_READ_CD));
1462
1463 //
1464 // Fire off a mode select to switch back to cooked sectors.
1465 //
1466
1467 irp2 = IoAllocateIrp((CCHAR)(deviceExtension->DeviceObject->StackSize+1),
1468 FALSE);
1469
1470 if (!irp2) {
1471 Irp->IoStatus.Information = 0;
1472 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1473 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1474 IoStartNextPacket(DeviceObject, FALSE);
1475 return;
1476 }
1477
1478 srb = ExAllocatePool(NonPagedPool, sizeof(SCSI_REQUEST_BLOCK));
1479 if (!srb) {
1480 Irp->IoStatus.Information = 0;
1481 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1482 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1483 IoFreeIrp(irp2);
1484 IoStartNextPacket(DeviceObject, FALSE);
1485 return;
1486 }
1487
1488 RtlZeroMemory(srb, sizeof(SCSI_REQUEST_BLOCK));
1489
1490 cdb = (PCDB)srb->Cdb;
1491
1492 //
1493 // Allocate sense buffer.
1494 //
1495
1496 senseBuffer = ExAllocatePool(NonPagedPoolCacheAligned, SENSE_BUFFER_SIZE);
1497
1498 if (!senseBuffer) {
1499 Irp->IoStatus.Information = 0;
1500 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1501 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1502 ExFreePool(srb);
1503 IoFreeIrp(irp2);
1504 IoStartNextPacket(DeviceObject, FALSE);
1505 return;
1506 }
1507
1508 //
1509 // Set up the irp.
1510 //
1511
1512 IoSetNextIrpStackLocation(irp2);
1513 irp2->IoStatus.Status = STATUS_SUCCESS;
1514 irp2->IoStatus.Information = 0;
1515 irp2->Flags = 0;
1516 irp2->UserBuffer = NULL;
1517
1518 //
1519 // Save the device object and irp in a private stack location.
1520 //
1521
1522 irpStack = IoGetCurrentIrpStackLocation(irp2);
1523 irpStack->DeviceObject = deviceExtension->DeviceObject;
1524 irpStack->Parameters.Others.Argument2 = (PVOID) Irp;
1525
1526 //
1527 // The retry count will be in the real Irp, as the retry logic will
1528 // recreate our private irp.
1529 //
1530
1531 if (!(nextIrpStack->Parameters.Others.Argument1)) {
1532
1533 //
1534 // Only jam this in if it doesn't exist. The completion routines can
1535 // call StartIo directly in the case of retries and resetting it will
1536 // cause infinite loops.
1537 //
1538
1539 nextIrpStack->Parameters.Others.Argument1 = (PVOID) MAXIMUM_RETRIES;
1540 }
1541
1542 //
1543 // Construct the IRP stack for the lower level driver.
1544 //
1545
1546 irpStack = IoGetNextIrpStackLocation(irp2);
1547 irpStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
1548 irpStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_SCSI_EXECUTE_IN;
1549 irpStack->Parameters.Scsi.Srb = srb;
1550
1551 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
1552 srb->PathId = deviceExtension->PathId;
1553 srb->TargetId = deviceExtension->TargetId;
1554 srb->Lun = deviceExtension->Lun;
1555 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
1556 srb->Cdb[1] |= deviceExtension->Lun << 5;
1557 srb->SrbStatus = srb->ScsiStatus = 0;
1558 srb->NextSrb = 0;
1559 srb->OriginalRequest = irp2;
1560 srb->SenseInfoBufferLength = SENSE_BUFFER_SIZE;
1561 srb->SenseInfoBuffer = senseBuffer;
1562
1563 transferByteCount = (use6Byte) ? sizeof(ERROR_RECOVERY_DATA) : sizeof(ERROR_RECOVERY_DATA10);
1564 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned, transferByteCount );
1565 if (!dataBuffer) {
1566 Irp->IoStatus.Information = 0;
1567 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1568 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1569 ExFreePool(senseBuffer);
1570 ExFreePool(srb);
1571 IoFreeIrp(irp2);
1572 IoStartNextPacket(DeviceObject, FALSE);
1573 return;
1574
1575 }
1576
1577 irp2->MdlAddress = IoAllocateMdl(dataBuffer,
1578 transferByteCount,
1579 FALSE,
1580 FALSE,
1581 (PIRP) NULL);
1582
1583 if (!irp2->MdlAddress) {
1584 Irp->IoStatus.Information = 0;
1585 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1586 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1587 ExFreePool(senseBuffer);
1588 ExFreePool(srb);
1589 ExFreePool(dataBuffer);
1590 IoFreeIrp(irp2);
1591 IoStartNextPacket(DeviceObject, FALSE);
1592 return;
1593 }
1594
1595 //
1596 // Prepare the MDL
1597 //
1598
1599 MmBuildMdlForNonPagedPool(irp2->MdlAddress);
1600
1601 srb->DataBuffer = dataBuffer;
1602
1603 //
1604 // Set the new block size in the descriptor.
1605 //
1606
1607 cdData->u1.BlockDescriptor.BlockLength[0] = (UCHAR)(COOKED_SECTOR_SIZE >> 16) & 0xFF;
1608 cdData->u1.BlockDescriptor.BlockLength[1] = (UCHAR)(COOKED_SECTOR_SIZE >> 8) & 0xFF;
1609 cdData->u1.BlockDescriptor.BlockLength[2] = (UCHAR)(COOKED_SECTOR_SIZE & 0xFF);
1610
1611 //
1612 // Move error page into dataBuffer.
1613 //
1614
1615 RtlCopyMemory(srb->DataBuffer, &cdData->u1.Header, transferByteCount);
1616
1617 //
1618 // Build and send a mode select to switch into raw mode.
1619 //
1620
1621 srb->SrbFlags = deviceExtension->SrbFlags;
1622 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_OUT);
1623 srb->DataTransferLength = transferByteCount;
1624 srb->TimeOutValue = deviceExtension->TimeOutValue * 2;
1625
1626 if (use6Byte) {
1627 srb->CdbLength = 6;
1628 cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT;
1629 cdb->MODE_SELECT.PFBit = 1;
1630 cdb->MODE_SELECT.ParameterListLength = (UCHAR)transferByteCount;
1631 } else {
1632
1633 srb->CdbLength = 10;
1634 cdb->MODE_SELECT10.OperationCode = SCSIOP_MODE_SELECT10;
1635 cdb->MODE_SELECT10.PFBit = 1;
1636 cdb->MODE_SELECT10.ParameterListLength[0] = (UCHAR)(transferByteCount >> 8);
1637 cdb->MODE_SELECT10.ParameterListLength[1] = (UCHAR)(transferByteCount & 0xFF);
1638 }
1639
1640 //
1641 // Update completion routine.
1642 //
1643
1644 IoSetCompletionRoutine(irp2,
1645 CdRomSwitchModeCompletion,
1646 srb,
1647 TRUE,
1648 TRUE,
1649 TRUE);
1650
1651 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
1652 return;
1653 }
1654
1655 if ((currentIrpStack->Parameters.Read.Length > maximumTransferLength) ||
1656 (transferPages >
1657 deviceExtension->PortCapabilities->MaximumPhysicalPages)) {
1658
1659 //
1660 // Request needs to be split. Completion of each portion of the
1661 // request will fire off the next portion. The final request will
1662 // signal Io to send a new request.
1663 //
1664
1665 transferPages =
1666 deviceExtension->PortCapabilities->MaximumPhysicalPages - 1;
1667
1668 if(maximumTransferLength > transferPages << PAGE_SHIFT) {
1669 maximumTransferLength = transferPages << PAGE_SHIFT;
1670 }
1671
1672 //
1673 // Check that the maximum transfer size is not zero
1674 //
1675
1676 if(maximumTransferLength == 0) {
1677 maximumTransferLength = PAGE_SIZE;
1678 }
1679
1680 ScsiClassSplitRequest(DeviceObject, Irp, maximumTransferLength);
1681 return;
1682
1683 } else {
1684
1685 //
1686 // Build SRB and CDB for this IRP.
1687 //
1688
1689 ScsiClassBuildRequest(DeviceObject, Irp);
1690
1691 }
1692
1693
1694 } else if (currentIrpStack->MajorFunction == IRP_MJ_DEVICE_CONTROL) {
1695
1696 //
1697 // Allocate an irp, srb and associated structures.
1698 //
1699
1700 irp2 = IoAllocateIrp((CCHAR)(deviceExtension->DeviceObject->StackSize+1),
1701 FALSE);
1702
1703 if (!irp2) {
1704 Irp->IoStatus.Information = 0;
1705 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1706 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1707 IoStartNextPacket(DeviceObject, FALSE);
1708 DebugPrint((2, "ScsiCdRomStartIo: [%lx] bailing with status %lx at line %s\n", Irp, Irp->IoStatus.Status, __LINE__));
1709 return;
1710 }
1711
1712 srb = ExAllocatePool(NonPagedPool, sizeof(SCSI_REQUEST_BLOCK));
1713 if (!srb) {
1714 Irp->IoStatus.Information = 0;
1715 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1716 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1717 IoFreeIrp(irp2);
1718 IoStartNextPacket(DeviceObject, FALSE);
1719 DebugPrint((2, "ScsiCdRomStartIo: [%lx] bailing with status %lx at line %s\n", Irp, Irp->IoStatus.Status, __LINE__));
1720 return;
1721 }
1722
1723 RtlZeroMemory(srb, sizeof(SCSI_REQUEST_BLOCK));
1724
1725 cdb = (PCDB)srb->Cdb;
1726
1727 //
1728 // Allocate sense buffer.
1729 //
1730
1731 senseBuffer = ExAllocatePool(NonPagedPoolCacheAligned, SENSE_BUFFER_SIZE);
1732
1733 if (!senseBuffer) {
1734 Irp->IoStatus.Information = 0;
1735 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1736 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1737 ExFreePool(srb);
1738 IoFreeIrp(irp2);
1739 IoStartNextPacket(DeviceObject, FALSE);
1740 DebugPrint((2, "ScsiCdRomStartIo: [%lx] bailing with status %lx at line %s\n", Irp, Irp->IoStatus.Status, __LINE__));
1741 return;
1742 }
1743
1744 //
1745 // Set up the irp.
1746 //
1747
1748 IoSetNextIrpStackLocation(irp2);
1749 irp2->IoStatus.Status = STATUS_SUCCESS;
1750 irp2->IoStatus.Information = 0;
1751 irp2->Flags = 0;
1752 irp2->UserBuffer = NULL;
1753
1754 //
1755 // Save the device object and irp in a private stack location.
1756 //
1757
1758 irpStack = IoGetCurrentIrpStackLocation(irp2);
1759 irpStack->DeviceObject = deviceExtension->DeviceObject;
1760 irpStack->Parameters.Others.Argument2 = (PVOID) Irp;
1761
1762 //
1763 // The retry count will be in the real Irp, as the retry logic will
1764 // recreate our private irp.
1765 //
1766
1767 if (!(nextIrpStack->Parameters.Others.Argument1)) {
1768
1769 //
1770 // Only jam this in if it doesn't exist. The completion routines can
1771 // call StartIo directly in the case of retries and resetting it will
1772 // cause infinite loops.
1773 //
1774
1775 nextIrpStack->Parameters.Others.Argument1 = (PVOID) MAXIMUM_RETRIES;
1776 }
1777
1778 //
1779 // Construct the IRP stack for the lower level driver.
1780 //
1781
1782 irpStack = IoGetNextIrpStackLocation(irp2);
1783 irpStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
1784 irpStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_SCSI_EXECUTE_IN;
1785 irpStack->Parameters.Scsi.Srb = srb;
1786
1787 IoSetCompletionRoutine(irp2,
1788 CdRomDeviceControlCompletion,
1789 srb,
1790 TRUE,
1791 TRUE,
1792 TRUE);
1793 //
1794 // Setup those fields that are generic to all requests.
1795 //
1796
1797 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
1798 srb->PathId = deviceExtension->PathId;
1799 srb->TargetId = deviceExtension->TargetId;
1800 srb->Lun = deviceExtension->Lun;
1801 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
1802 srb->Cdb[1] |= deviceExtension->Lun << 5;
1803 srb->SrbStatus = srb->ScsiStatus = 0;
1804 srb->NextSrb = 0;
1805 srb->OriginalRequest = irp2;
1806 srb->SenseInfoBufferLength = SENSE_BUFFER_SIZE;
1807 srb->SenseInfoBuffer = senseBuffer;
1808
1809 switch (currentIrpStack->Parameters.DeviceIoControl.IoControlCode) {
1810
1811 case IOCTL_CDROM_RAW_READ: {
1812
1813 //
1814 // Determine whether the drive is currently in raw or cooked mode,
1815 // and which command to use to read the data.
1816 //
1817
1818 if (!(cdData->XAFlags & XA_USE_READ_CD)) {
1819
1820 PRAW_READ_INFO rawReadInfo =
1821 (PRAW_READ_INFO)currentIrpStack->Parameters.DeviceIoControl.Type3InputBuffer;
1822 ULONG maximumTransferLength;
1823 ULONG transferPages;
1824
1825 if (cdData->RawAccess) {
1826
1827 ULONG startingSector;
1828
1829 //
1830 // Free the recently allocated irp, as we don't need it.
1831 //
1832
1833 IoFreeIrp(irp2);
1834
1835 cdb = (PCDB)srb->Cdb;
1836 RtlZeroMemory(cdb, 12);
1837
1838 //
1839 // Calculate starting offset.
1840 //
1841
1842 startingSector = (ULONG)(rawReadInfo->DiskOffset.QuadPart >> deviceExtension->SectorShift);
1843 transferByteCount = rawReadInfo->SectorCount * RAW_SECTOR_SIZE;
1844 maximumTransferLength = deviceExtension->PortCapabilities->MaximumTransferLength;
1845 transferPages = ADDRESS_AND_SIZE_TO_SPAN_PAGES(MmGetMdlVirtualAddress(Irp->MdlAddress),
1846 transferByteCount);
1847
1848 //
1849 // Determine if request is within limits imposed by miniport.
1850 //
1851
1852 if (transferByteCount > maximumTransferLength ||
1853 transferPages > deviceExtension->PortCapabilities->MaximumPhysicalPages) {
1854
1855 //
1856 // The claim is that this won't happen, and is backed up by
1857 // ActiveMovie usage, which does unbuffered XA reads of 0x18000, yet
1858 // we get only 4 sector requests.
1859 //
1860
1861
1862 Irp->IoStatus.Information = 0;
1863 Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
1864 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1865 ExFreePool(senseBuffer);
1866 ExFreePool(srb);
1867 IoStartNextPacket(DeviceObject, FALSE);
1868 return;
1869
1870 }
1871
1872 srb->OriginalRequest = Irp;
1873 srb->SrbFlags = deviceExtension->SrbFlags;
1874 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
1875 srb->DataTransferLength = transferByteCount;
1876 srb->TimeOutValue = deviceExtension->TimeOutValue;
1877 srb->CdbLength = 10;
1878 srb->DataBuffer = MmGetMdlVirtualAddress(Irp->MdlAddress);
1879
1880 if (rawReadInfo->TrackMode == CDDA) {
1881 if (cdData->XAFlags & PLEXTOR_CDDA) {
1882
1883 srb->CdbLength = 12;
1884
1885 cdb->PLXTR_READ_CDDA.LogicalUnitNumber = deviceExtension->Lun;
1886 cdb->PLXTR_READ_CDDA.LogicalBlockByte3 = (UCHAR) (startingSector & 0xFF);
1887 cdb->PLXTR_READ_CDDA.LogicalBlockByte2 = (UCHAR) ((startingSector >> 8) & 0xFF);
1888 cdb->PLXTR_READ_CDDA.LogicalBlockByte1 = (UCHAR) ((startingSector >> 16) & 0xFF);
1889 cdb->PLXTR_READ_CDDA.LogicalBlockByte0 = (UCHAR) ((startingSector >> 24) & 0xFF);
1890
1891 cdb->PLXTR_READ_CDDA.TransferBlockByte3 = (UCHAR) (rawReadInfo->SectorCount & 0xFF);
1892 cdb->PLXTR_READ_CDDA.TransferBlockByte2 = (UCHAR) (rawReadInfo->SectorCount >> 8);
1893 cdb->PLXTR_READ_CDDA.TransferBlockByte1 = 0;
1894 cdb->PLXTR_READ_CDDA.TransferBlockByte0 = 0;
1895
1896 cdb->PLXTR_READ_CDDA.SubCode = 0;
1897 cdb->PLXTR_READ_CDDA.OperationCode = 0xD8;
1898
1899 } else if (cdData->XAFlags & NEC_CDDA) {
1900
1901 cdb->NEC_READ_CDDA.LogicalBlockByte3 = (UCHAR) (startingSector & 0xFF);
1902 cdb->NEC_READ_CDDA.LogicalBlockByte2 = (UCHAR) ((startingSector >> 8) & 0xFF);
1903 cdb->NEC_READ_CDDA.LogicalBlockByte1 = (UCHAR) ((startingSector >> 16) & 0xFF);
1904 cdb->NEC_READ_CDDA.LogicalBlockByte0 = (UCHAR) ((startingSector >> 24) & 0xFF);
1905
1906 cdb->NEC_READ_CDDA.TransferBlockByte1 = (UCHAR) (rawReadInfo->SectorCount & 0xFF);
1907 cdb->NEC_READ_CDDA.TransferBlockByte0 = (UCHAR) (rawReadInfo->SectorCount >> 8);
1908
1909 cdb->NEC_READ_CDDA.OperationCode = 0xD4;
1910 }
1911 } else {
1912
1913 cdb->CDB10.LogicalUnitNumber = deviceExtension->Lun;
1914
1915 cdb->CDB10.TransferBlocksMsb = (UCHAR) (rawReadInfo->SectorCount >> 8);
1916 cdb->CDB10.TransferBlocksLsb = (UCHAR) (rawReadInfo->SectorCount & 0xFF);
1917
1918 cdb->CDB10.LogicalBlockByte3 = (UCHAR) (startingSector & 0xFF);
1919 cdb->CDB10.LogicalBlockByte2 = (UCHAR) ((startingSector >> 8) & 0xFF);
1920 cdb->CDB10.LogicalBlockByte1 = (UCHAR) ((startingSector >> 16) & 0xFF);
1921 cdb->CDB10.LogicalBlockByte0 = (UCHAR) ((startingSector >> 24) & 0xFF);
1922
1923 cdb->CDB10.OperationCode = SCSIOP_READ;
1924 }
1925
1926 srb->SrbStatus = srb->ScsiStatus = 0;
1927
1928 nextIrpStack->MajorFunction = IRP_MJ_SCSI;
1929 nextIrpStack->Parameters.Scsi.Srb = srb;
1930
1931 if (!(nextIrpStack->Parameters.Others.Argument1)) {
1932
1933 //
1934 // Only jam this in if it doesn't exist. The completion routines can
1935 // call StartIo directly in the case of retries and resetting it will
1936 // cause infinite loops.
1937 //
1938
1939 nextIrpStack->Parameters.Others.Argument1 = (PVOID) MAXIMUM_RETRIES;
1940 }
1941
1942 //
1943 // Set up IoCompletion routine address.
1944 //
1945
1946 IoSetCompletionRoutine(Irp,
1947 CdRomXACompletion,
1948 srb,
1949 TRUE,
1950 TRUE,
1951 TRUE);
1952
1953 IoCallDriver(deviceExtension->PortDeviceObject, Irp);
1954 return;
1955
1956 } else {
1957
1958 transferByteCount = (use6Byte) ? sizeof(ERROR_RECOVERY_DATA) : sizeof(ERROR_RECOVERY_DATA10);
1959 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned, transferByteCount );
1960 if (!dataBuffer) {
1961 Irp->IoStatus.Information = 0;
1962 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1963 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1964 ExFreePool(senseBuffer);
1965 ExFreePool(srb);
1966 IoFreeIrp(irp2);
1967 IoStartNextPacket(DeviceObject, FALSE);
1968 return;
1969
1970 }
1971
1972 irp2->MdlAddress = IoAllocateMdl(dataBuffer,
1973 transferByteCount,
1974 FALSE,
1975 FALSE,
1976 (PIRP) NULL);
1977
1978 if (!irp2->MdlAddress) {
1979 Irp->IoStatus.Information = 0;
1980 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
1981 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
1982 ExFreePool(senseBuffer);
1983 ExFreePool(srb);
1984 ExFreePool(dataBuffer);
1985 IoFreeIrp(irp2);
1986 IoStartNextPacket(DeviceObject, FALSE);
1987 return;
1988 }
1989
1990 //
1991 // Prepare the MDL
1992 //
1993
1994 MmBuildMdlForNonPagedPool(irp2->MdlAddress);
1995
1996 srb->DataBuffer = dataBuffer;
1997
1998 //
1999 // Set the new block size in the descriptor.
2000 //
2001
2002 cdData->u1.BlockDescriptor.BlockLength[0] = (UCHAR)(RAW_SECTOR_SIZE >> 16) & 0xFF;
2003 cdData->u1.BlockDescriptor.BlockLength[1] = (UCHAR)(RAW_SECTOR_SIZE >> 8) & 0xFF;
2004 cdData->u1.BlockDescriptor.BlockLength[2] = (UCHAR)(RAW_SECTOR_SIZE & 0xFF);
2005
2006
2007 //
2008 // TODO: Set density code, based on operation
2009 //
2010
2011 cdData->u1.BlockDescriptor.DensityCode = 0;
2012
2013
2014 //
2015 // Move error page into dataBuffer.
2016 //
2017
2018 RtlCopyMemory(srb->DataBuffer, &cdData->u1.Header, transferByteCount);
2019
2020
2021 //
2022 // Build and send a mode select to switch into raw mode.
2023 //
2024
2025 srb->SrbFlags = deviceExtension->SrbFlags;
2026 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_OUT);
2027 srb->DataTransferLength = transferByteCount;
2028 srb->TimeOutValue = deviceExtension->TimeOutValue * 2;
2029
2030 if (use6Byte) {
2031 srb->CdbLength = 6;
2032 cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT;
2033 cdb->MODE_SELECT.PFBit = 1;
2034 cdb->MODE_SELECT.ParameterListLength = (UCHAR)transferByteCount;
2035 } else {
2036
2037 srb->CdbLength = 10;
2038 cdb->MODE_SELECT10.OperationCode = SCSIOP_MODE_SELECT10;
2039 cdb->MODE_SELECT10.PFBit = 1;
2040 cdb->MODE_SELECT10.ParameterListLength[0] = (UCHAR)(transferByteCount >> 8);
2041 cdb->MODE_SELECT10.ParameterListLength[1] = (UCHAR)(transferByteCount & 0xFF);
2042 }
2043
2044 //
2045 // Update completion routine.
2046 //
2047
2048 IoSetCompletionRoutine(irp2,
2049 CdRomSwitchModeCompletion,
2050 srb,
2051 TRUE,
2052 TRUE,
2053 TRUE);
2054
2055 }
2056
2057 } else {
2058
2059 PRAW_READ_INFO rawReadInfo =
2060 (PRAW_READ_INFO)currentIrpStack->Parameters.DeviceIoControl.Type3InputBuffer;
2061 ULONG startingSector;
2062
2063 //
2064 // Free the recently allocated irp, as we don't need it.
2065 //
2066
2067 IoFreeIrp(irp2);
2068
2069 cdb = (PCDB)srb->Cdb;
2070 RtlZeroMemory(cdb, 12);
2071
2072
2073 //
2074 // Calculate starting offset.
2075 //
2076
2077 startingSector = (ULONG)(rawReadInfo->DiskOffset.QuadPart >> deviceExtension->SectorShift);
2078 transferByteCount = rawReadInfo->SectorCount * RAW_SECTOR_SIZE;
2079
2080
2081 srb->OriginalRequest = Irp;
2082 srb->SrbFlags = deviceExtension->SrbFlags;
2083 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
2084 srb->DataTransferLength = transferByteCount;
2085 srb->TimeOutValue = deviceExtension->TimeOutValue;
2086 srb->DataBuffer = MmGetMdlVirtualAddress(Irp->MdlAddress);
2087 srb->CdbLength = 12;
2088 srb->SrbStatus = srb->ScsiStatus = 0;
2089
2090 //
2091 // Fill in CDB fields.
2092 //
2093
2094 cdb = (PCDB)srb->Cdb;
2095
2096
2097 cdb->READ_CD.TransferBlocks[2] = (UCHAR) (rawReadInfo->SectorCount & 0xFF);
2098 cdb->READ_CD.TransferBlocks[1] = (UCHAR) (rawReadInfo->SectorCount >> 8 );
2099 cdb->READ_CD.TransferBlocks[0] = (UCHAR) (rawReadInfo->SectorCount >> 16);
2100
2101
2102 cdb->READ_CD.StartingLBA[3] = (UCHAR) (startingSector & 0xFF);
2103 cdb->READ_CD.StartingLBA[2] = (UCHAR) ((startingSector >> 8));
2104 cdb->READ_CD.StartingLBA[1] = (UCHAR) ((startingSector >> 16));
2105 cdb->READ_CD.StartingLBA[0] = (UCHAR) ((startingSector >> 24));
2106
2107 //
2108 // Setup cdb depending upon the sector type we want.
2109 //
2110
2111 switch (rawReadInfo->TrackMode) {
2112 case CDDA:
2113
2114 cdb->READ_CD.ExpectedSectorType = CD_DA_SECTOR;
2115 cdb->READ_CD.IncludeUserData = 1;
2116 cdb->READ_CD.HeaderCode = 3;
2117 cdb->READ_CD.IncludeSyncData = 1;
2118 break;
2119
2120 case YellowMode2:
2121
2122 cdb->READ_CD.ExpectedSectorType = YELLOW_MODE2_SECTOR;
2123 cdb->READ_CD.IncludeUserData = 1;
2124 cdb->READ_CD.HeaderCode = 1;
2125 cdb->READ_CD.IncludeSyncData = 1;
2126 break;
2127
2128 case XAForm2:
2129
2130 cdb->READ_CD.ExpectedSectorType = FORM2_MODE2_SECTOR;
2131 cdb->READ_CD.IncludeUserData = 1;
2132 cdb->READ_CD.HeaderCode = 3;
2133 cdb->READ_CD.IncludeSyncData = 1;
2134 break;
2135
2136 default:
2137 Irp->IoStatus.Information = 0;
2138 Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
2139 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2140 ExFreePool(senseBuffer);
2141 ExFreePool(srb);
2142 IoFreeIrp(irp2);
2143 IoStartNextPacket(DeviceObject, FALSE);
2144 DebugPrint((2, "ScsiCdRomStartIo: [%lx] bailing with status %lx at line %s\n", Irp, Irp->IoStatus.Status, __LINE__));
2145 return;
2146 }
2147
2148 cdb->READ_CD.OperationCode = SCSIOP_READ_CD;
2149
2150 nextIrpStack->MajorFunction = IRP_MJ_SCSI;
2151 nextIrpStack->Parameters.Scsi.Srb = srb;
2152
2153 if (!(nextIrpStack->Parameters.Others.Argument1)) {
2154
2155 //
2156 // Only jam this in if it doesn't exist. The completion routines can
2157 // call StartIo directly in the case of retries and resetting it will
2158 // cause infinite loops.
2159 //
2160
2161 nextIrpStack->Parameters.Others.Argument1 = (PVOID) MAXIMUM_RETRIES;
2162 }
2163
2164 //
2165 // Set up IoCompletion routine address.
2166 //
2167
2168 IoSetCompletionRoutine(Irp,
2169 CdRomXACompletion,
2170 srb,
2171 TRUE,
2172 TRUE,
2173 TRUE);
2174
2175 IoCallDriver(deviceExtension->PortDeviceObject, Irp);
2176 return;
2177
2178 }
2179
2180 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2181 return;
2182 }
2183
2184 case IOCTL_CDROM_GET_DRIVE_GEOMETRY: {
2185
2186 //
2187 // Issue ReadCapacity to update device extension
2188 // with information for current media.
2189 //
2190
2191 DebugPrint((3,
2192 "CdRomStartIo: Get drive capacity\n"));
2193
2194 //
2195 // setup remaining srb and cdb parameters.
2196 //
2197
2198 srb->SrbFlags = deviceExtension->SrbFlags;
2199 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
2200 srb->DataTransferLength = sizeof(READ_CAPACITY_DATA);
2201 srb->CdbLength = 10;
2202 srb->TimeOutValue = deviceExtension->TimeOutValue;
2203
2204 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned, sizeof(READ_CAPACITY_DATA));
2205 if (!dataBuffer) {
2206 Irp->IoStatus.Information = 0;
2207 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2208 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2209 ExFreePool(senseBuffer);
2210 ExFreePool(srb);
2211 IoFreeIrp(irp2);
2212 IoStartNextPacket(DeviceObject, FALSE);
2213 DebugPrint((2, "ScsiCdRomStartIo: [%lx] bailing with status %lx at line %s\n", Irp, Irp->IoStatus.Status, __LINE__));
2214 return;
2215
2216 }
2217
2218 irp2->MdlAddress = IoAllocateMdl(dataBuffer,
2219 sizeof(READ_CAPACITY_DATA),
2220 FALSE,
2221 FALSE,
2222 (PIRP) NULL);
2223
2224 if (!irp2->MdlAddress) {
2225 Irp->IoStatus.Information = 0;
2226 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2227 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2228 ExFreePool(senseBuffer);
2229 ExFreePool(srb);
2230 ExFreePool(dataBuffer);
2231 IoFreeIrp(irp2);
2232 IoStartNextPacket(DeviceObject, FALSE);
2233 DebugPrint((2, "ScsiCdRomStartIo: [%lx] bailing with status %lx at line %s\n", Irp, Irp->IoStatus.Status, __LINE__));
2234 return;
2235 }
2236
2237 //
2238 // Prepare the MDL
2239 //
2240
2241 MmBuildMdlForNonPagedPool(irp2->MdlAddress);
2242
2243 srb->DataBuffer = dataBuffer;
2244 cdb->CDB10.OperationCode = SCSIOP_READ_CAPACITY;
2245
2246 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2247 return;
2248 }
2249
2250 case IOCTL_CDROM_CHECK_VERIFY: {
2251
2252 //
2253 // Since a test unit ready is about to be performed, reset the timer
2254 // value to decrease the opportunities for it to race with this code.
2255 //
2256
2257 cdData->MediaChangeCountDown = MEDIA_CHANGE_DEFAULT_TIME;
2258
2259 //
2260 // Set up the SRB/CDB
2261 //
2262
2263 srb->CdbLength = 6;
2264 cdb->CDB6GENERIC.OperationCode = SCSIOP_TEST_UNIT_READY;
2265 srb->TimeOutValue = deviceExtension->TimeOutValue * 2;
2266 srb->SrbFlags = deviceExtension->SrbFlags;
2267 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_NO_DATA_TRANSFER);
2268
2269 DebugPrint((2, "ScsiCdRomStartIo: [%lx] Sending CHECK_VERIFY irp %lx\n", Irp, irp2));
2270 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2271 return;
2272 }
2273
2274 case IOCTL_CDROM_GET_LAST_SESSION:
2275
2276 //
2277 // Set format to return first and last session numbers.
2278 //
2279
2280 cdb->READ_TOC.Format = GET_LAST_SESSION;
2281
2282 //
2283 // Fall through to READ TOC code.
2284 //
2285
2286 case IOCTL_CDROM_READ_TOC: {
2287
2288
2289 if (currentIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_READ_TOC) {
2290
2291 //
2292 // Use MSF addressing if not request for session information.
2293 //
2294
2295 cdb->READ_TOC.Msf = CDB_USE_MSF;
2296 }
2297
2298 //
2299 // Set size of TOC structure.
2300 //
2301
2302 transferByteCount =
2303 currentIrpStack->Parameters.Read.Length >
2304 sizeof(CDROM_TOC) ? sizeof(CDROM_TOC):
2305 currentIrpStack->Parameters.Read.Length;
2306
2307 cdb->READ_TOC.AllocationLength[0] = (UCHAR) (transferByteCount >> 8);
2308 cdb->READ_TOC.AllocationLength[1] = (UCHAR) (transferByteCount & 0xFF);
2309
2310 cdb->READ_TOC.Control = 0;
2311
2312 //
2313 // Start at beginning of disc.
2314 //
2315
2316 cdb->READ_TOC.StartingTrack = 0;
2317
2318 //
2319 // setup remaining srb and cdb parameters.
2320 //
2321
2322 srb->SrbFlags = deviceExtension->SrbFlags;
2323 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
2324 srb->DataTransferLength = transferByteCount;
2325 srb->CdbLength = 10;
2326 srb->TimeOutValue = deviceExtension->TimeOutValue;
2327
2328 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned, transferByteCount);
2329 if (!dataBuffer) {
2330 Irp->IoStatus.Information = 0;
2331 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2332 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2333 ExFreePool(senseBuffer);
2334 ExFreePool(srb);
2335 IoFreeIrp(irp2);
2336 IoStartNextPacket(DeviceObject, FALSE);
2337 return;
2338
2339 }
2340
2341 irp2->MdlAddress = IoAllocateMdl(dataBuffer,
2342 transferByteCount,
2343 FALSE,
2344 FALSE,
2345 (PIRP) NULL);
2346
2347 if (!irp2->MdlAddress) {
2348 Irp->IoStatus.Information = 0;
2349 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2350 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2351 ExFreePool(senseBuffer);
2352 ExFreePool(srb);
2353 ExFreePool(dataBuffer);
2354 IoFreeIrp(irp2);
2355 IoStartNextPacket(DeviceObject, FALSE);
2356 return;
2357 }
2358
2359 //
2360 // Prepare the MDL
2361 //
2362
2363 MmBuildMdlForNonPagedPool(irp2->MdlAddress);
2364
2365 srb->DataBuffer = dataBuffer;
2366 cdb->READ_TOC.OperationCode = SCSIOP_READ_TOC;
2367
2368 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2369 return;
2370
2371 }
2372
2373 case IOCTL_CDROM_PLAY_AUDIO_MSF: {
2374
2375 PCDROM_PLAY_AUDIO_MSF inputBuffer = Irp->AssociatedIrp.SystemBuffer;
2376
2377 //
2378 // Set up the SRB/CDB
2379 //
2380
2381 srb->CdbLength = 10;
2382 cdb->PLAY_AUDIO_MSF.OperationCode = SCSIOP_PLAY_AUDIO_MSF;
2383
2384 cdb->PLAY_AUDIO_MSF.StartingM = inputBuffer->StartingM;
2385 cdb->PLAY_AUDIO_MSF.StartingS = inputBuffer->StartingS;
2386 cdb->PLAY_AUDIO_MSF.StartingF = inputBuffer->StartingF;
2387
2388 cdb->PLAY_AUDIO_MSF.EndingM = inputBuffer->EndingM;
2389 cdb->PLAY_AUDIO_MSF.EndingS = inputBuffer->EndingS;
2390 cdb->PLAY_AUDIO_MSF.EndingF = inputBuffer->EndingF;
2391
2392 srb->TimeOutValue = deviceExtension->TimeOutValue;
2393 srb->SrbFlags = deviceExtension->SrbFlags;
2394 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_NO_DATA_TRANSFER);
2395
2396 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2397 return;
2398
2399 }
2400
2401 case IOCTL_CDROM_READ_Q_CHANNEL: {
2402
2403 PCDROM_SUB_Q_DATA_FORMAT inputBuffer =
2404 Irp->AssociatedIrp.SystemBuffer;
2405
2406 //
2407 // Allocate buffer for subq channel information.
2408 //
2409
2410 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned,
2411 sizeof(SUB_Q_CHANNEL_DATA));
2412
2413 if (!dataBuffer) {
2414 Irp->IoStatus.Information = 0;
2415 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2416 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2417 ExFreePool(senseBuffer);
2418 ExFreePool(srb);
2419 IoFreeIrp(irp2);
2420 IoStartNextPacket(DeviceObject, FALSE);
2421 return;
2422
2423 }
2424
2425 irp2->MdlAddress = IoAllocateMdl(dataBuffer,
2426 transferByteCount,
2427 FALSE,
2428 FALSE,
2429 (PIRP) NULL);
2430
2431 if (!irp2->MdlAddress) {
2432 Irp->IoStatus.Information = 0;
2433 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2434 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2435 ExFreePool(senseBuffer);
2436 ExFreePool(srb);
2437 ExFreePool(dataBuffer);
2438 IoFreeIrp(irp2);
2439 IoStartNextPacket(DeviceObject, FALSE);
2440 return;
2441 }
2442
2443 //
2444 // Prepare the MDL
2445 //
2446
2447 MmBuildMdlForNonPagedPool(irp2->MdlAddress);
2448
2449 srb->DataBuffer = dataBuffer;
2450
2451 //
2452 // Always logical unit 0, but only use MSF addressing
2453 // for IOCTL_CDROM_CURRENT_POSITION
2454 //
2455
2456 if (inputBuffer->Format==IOCTL_CDROM_CURRENT_POSITION)
2457 cdb->SUBCHANNEL.Msf = CDB_USE_MSF;
2458
2459 //
2460 // Return subchannel data
2461 //
2462
2463 cdb->SUBCHANNEL.SubQ = CDB_SUBCHANNEL_BLOCK;
2464
2465 //
2466 // Specify format of informatin to return
2467 //
2468
2469 cdb->SUBCHANNEL.Format = inputBuffer->Format;
2470
2471 //
2472 // Specify which track to access (only used by Track ISRC reads)
2473 //
2474
2475 if (inputBuffer->Format==IOCTL_CDROM_TRACK_ISRC) {
2476 cdb->SUBCHANNEL.TrackNumber = inputBuffer->Track;
2477 }
2478
2479 //
2480 // Set size of channel data -- however, this is dependent on
2481 // what information we are requesting (which Format)
2482 //
2483
2484 switch( inputBuffer->Format ) {
2485
2486 case IOCTL_CDROM_CURRENT_POSITION:
2487 transferByteCount = sizeof(SUB_Q_CURRENT_POSITION);
2488 break;
2489
2490 case IOCTL_CDROM_MEDIA_CATALOG:
2491 transferByteCount = sizeof(SUB_Q_MEDIA_CATALOG_NUMBER);
2492 break;
2493
2494 case IOCTL_CDROM_TRACK_ISRC:
2495 transferByteCount = sizeof(SUB_Q_TRACK_ISRC);
2496 break;
2497 }
2498
2499 cdb->SUBCHANNEL.AllocationLength[0] = (UCHAR) (transferByteCount >> 8);
2500 cdb->SUBCHANNEL.AllocationLength[1] = (UCHAR) (transferByteCount & 0xFF);
2501 cdb->SUBCHANNEL.OperationCode = SCSIOP_READ_SUB_CHANNEL;
2502 srb->SrbFlags = deviceExtension->SrbFlags;
2503 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
2504 srb->DataTransferLength = transferByteCount;
2505 srb->CdbLength = 10;
2506 srb->TimeOutValue = deviceExtension->TimeOutValue;
2507
2508 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2509 return;
2510
2511 }
2512
2513 case IOCTL_CDROM_PAUSE_AUDIO: {
2514
2515 cdb->PAUSE_RESUME.OperationCode = SCSIOP_PAUSE_RESUME;
2516 cdb->PAUSE_RESUME.Action = CDB_AUDIO_PAUSE;
2517
2518 srb->CdbLength = 10;
2519 srb->TimeOutValue = deviceExtension->TimeOutValue;
2520 srb->SrbFlags = deviceExtension->SrbFlags;
2521 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_NO_DATA_TRANSFER);
2522
2523 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2524 return;
2525 }
2526
2527 case IOCTL_CDROM_RESUME_AUDIO: {
2528
2529 cdb->PAUSE_RESUME.OperationCode = SCSIOP_PAUSE_RESUME;
2530 cdb->PAUSE_RESUME.Action = CDB_AUDIO_RESUME;
2531
2532 srb->CdbLength = 10;
2533 srb->TimeOutValue = deviceExtension->TimeOutValue;
2534 srb->SrbFlags = deviceExtension->SrbFlags;
2535 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_NO_DATA_TRANSFER);
2536
2537 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2538 return;
2539 }
2540
2541 case IOCTL_CDROM_SEEK_AUDIO_MSF: {
2542
2543 PCDROM_SEEK_AUDIO_MSF inputBuffer = Irp->AssociatedIrp.SystemBuffer;
2544 ULONG logicalBlockAddress;
2545
2546 logicalBlockAddress = MSF_TO_LBA(inputBuffer->M, inputBuffer->S, inputBuffer->F);
2547
2548 cdb->SEEK.OperationCode = SCSIOP_SEEK;
2549 cdb->SEEK.LogicalBlockAddress[0] = ((PFOUR_BYTE)&logicalBlockAddress)->Byte3;
2550 cdb->SEEK.LogicalBlockAddress[1] = ((PFOUR_BYTE)&logicalBlockAddress)->Byte2;
2551 cdb->SEEK.LogicalBlockAddress[2] = ((PFOUR_BYTE)&logicalBlockAddress)->Byte1;
2552 cdb->SEEK.LogicalBlockAddress[3] = ((PFOUR_BYTE)&logicalBlockAddress)->Byte0;
2553
2554 srb->CdbLength = 10;
2555 srb->TimeOutValue = deviceExtension->TimeOutValue;
2556 srb->SrbFlags = deviceExtension->SrbFlags;
2557 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_NO_DATA_TRANSFER);
2558
2559 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2560 return;
2561
2562 }
2563
2564 case IOCTL_CDROM_STOP_AUDIO: {
2565
2566 cdb->START_STOP.OperationCode = SCSIOP_START_STOP_UNIT;
2567 cdb->START_STOP.Immediate = 1;
2568 cdb->START_STOP.Start = 0;
2569 cdb->START_STOP.LoadEject = 0;
2570
2571 srb->CdbLength = 6;
2572 srb->TimeOutValue = deviceExtension->TimeOutValue;
2573
2574 srb->SrbFlags = deviceExtension->SrbFlags;
2575 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_NO_DATA_TRANSFER);
2576
2577 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2578 return;
2579 }
2580
2581 case IOCTL_CDROM_GET_CONTROL: {
2582 //
2583 // Allocate buffer for volume control information.
2584 //
2585
2586 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned,
2587 MODE_DATA_SIZE);
2588
2589 if (!dataBuffer) {
2590 Irp->IoStatus.Information = 0;
2591 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2592 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2593 ExFreePool(senseBuffer);
2594 ExFreePool(srb);
2595 IoFreeIrp(irp2);
2596 IoStartNextPacket(DeviceObject, FALSE);
2597 return;
2598
2599 }
2600
2601 irp2->MdlAddress = IoAllocateMdl(dataBuffer,
2602 MODE_DATA_SIZE,
2603 FALSE,
2604 FALSE,
2605 (PIRP) NULL);
2606
2607 if (!irp2->MdlAddress) {
2608 Irp->IoStatus.Information = 0;
2609 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2610 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2611 ExFreePool(senseBuffer);
2612 ExFreePool(srb);
2613 ExFreePool(dataBuffer);
2614 IoFreeIrp(irp2);
2615 IoStartNextPacket(DeviceObject, FALSE);
2616 return;
2617 }
2618
2619 //
2620 // Prepare the MDL
2621 //
2622
2623 MmBuildMdlForNonPagedPool(irp2->MdlAddress);
2624 srb->DataBuffer = dataBuffer;
2625
2626 RtlZeroMemory(dataBuffer, MODE_DATA_SIZE);
2627
2628 //
2629 // Setup for either 6 or 10 byte CDBs.
2630 //
2631
2632 if (use6Byte) {
2633
2634 cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE;
2635 cdb->MODE_SENSE.PageCode = CDROM_AUDIO_CONTROL_PAGE;
2636 cdb->MODE_SENSE.AllocationLength = MODE_DATA_SIZE;
2637
2638 //
2639 // Disable block descriptors.
2640 //
2641
2642 cdb->MODE_SENSE.Dbd = TRUE;
2643
2644 srb->CdbLength = 6;
2645 } else {
2646
2647 cdb->MODE_SENSE10.OperationCode = SCSIOP_MODE_SENSE10;
2648 cdb->MODE_SENSE10.PageCode = CDROM_AUDIO_CONTROL_PAGE;
2649 cdb->MODE_SENSE10.AllocationLength[0] = (UCHAR)(MODE_DATA_SIZE >> 8);
2650 cdb->MODE_SENSE10.AllocationLength[1] = (UCHAR)(MODE_DATA_SIZE & 0xFF);
2651
2652 //
2653 // Disable block descriptors.
2654 //
2655
2656 cdb->MODE_SENSE10.Dbd = TRUE;
2657
2658 srb->CdbLength = 10;
2659 }
2660
2661 srb->TimeOutValue = deviceExtension->TimeOutValue;
2662 srb->DataTransferLength = MODE_DATA_SIZE;
2663 srb->SrbFlags = deviceExtension->SrbFlags;
2664 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
2665
2666 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2667 return;
2668
2669 }
2670
2671 case IOCTL_CDROM_GET_VOLUME:
2672 case IOCTL_CDROM_SET_VOLUME: {
2673
2674 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned,
2675 MODE_DATA_SIZE);
2676
2677 if (!dataBuffer) {
2678 Irp->IoStatus.Information = 0;
2679 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2680 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2681 ExFreePool(senseBuffer);
2682 ExFreePool(srb);
2683 IoFreeIrp(irp2);
2684 IoStartNextPacket(DeviceObject, FALSE);
2685 return;
2686 }
2687
2688 irp2->MdlAddress = IoAllocateMdl(dataBuffer,
2689 MODE_DATA_SIZE,
2690 FALSE,
2691 FALSE,
2692 (PIRP) NULL);
2693
2694 if (!irp2->MdlAddress) {
2695 Irp->IoStatus.Information = 0;
2696 Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
2697 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
2698 ExFreePool(senseBuffer);
2699 ExFreePool(srb);
2700 ExFreePool(dataBuffer);
2701 IoFreeIrp(irp2);
2702 IoStartNextPacket(DeviceObject, FALSE);
2703 return;
2704 }
2705
2706 //
2707 // Prepare the MDL
2708 //
2709
2710 MmBuildMdlForNonPagedPool(irp2->MdlAddress);
2711 srb->DataBuffer = dataBuffer;
2712
2713 RtlZeroMemory(dataBuffer, MODE_DATA_SIZE);
2714
2715
2716 if (use6Byte) {
2717 cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE;
2718 cdb->MODE_SENSE.PageCode = CDROM_AUDIO_CONTROL_PAGE;
2719 cdb->MODE_SENSE.AllocationLength = MODE_DATA_SIZE;
2720
2721 srb->CdbLength = 6;
2722
2723 } else {
2724
2725 cdb->MODE_SENSE10.OperationCode = SCSIOP_MODE_SENSE10;
2726 cdb->MODE_SENSE10.PageCode = CDROM_AUDIO_CONTROL_PAGE;
2727 cdb->MODE_SENSE10.AllocationLength[0] = (UCHAR)(MODE_DATA_SIZE >> 8);
2728 cdb->MODE_SENSE10.AllocationLength[1] = (UCHAR)(MODE_DATA_SIZE & 0xFF);
2729
2730 srb->CdbLength = 10;
2731 }
2732
2733 srb->TimeOutValue = deviceExtension->TimeOutValue;
2734 srb->DataTransferLength = MODE_DATA_SIZE;
2735 srb->SrbFlags = deviceExtension->SrbFlags;
2736 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
2737
2738 if (currentIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_SET_VOLUME) {
2739
2740 //
2741 // Setup a different completion routine as the mode sense data is needed in order
2742 // to send the mode select.
2743 //
2744
2745 IoSetCompletionRoutine(irp2,
2746 CdRomSetVolumeIntermediateCompletion,
2747 srb,
2748 TRUE,
2749 TRUE,
2750 TRUE);
2751
2752 }
2753
2754 IoCallDriver(deviceExtension->PortDeviceObject, irp2);
2755 return;
2756
2757 }
2758
2759 default:
2760
2761 //
2762 // Just complete the request - CdRomClassIoctlCompletion will take
2763 // care of it for us
2764 //
2765
2766 IoCompleteRequest(Irp, IO_NO_INCREMENT);
2767 return;
2768
2769 } // end switch()
2770 }
2771
2772 //
2773 // If a read or an unhandled IRP_MJ_XX, end up here. The unhandled IRP_MJ's
2774 // are expected and composed of AutoRun Irps, at present.
2775 //
2776
2777 IoCallDriver(deviceExtension->PortDeviceObject, Irp);
2778 return;
2779 }
2780
2781
2782 NTSTATUS
2783 NTAPI
2784 ScsiCdRomReadVerification(
2785 IN PDEVICE_OBJECT DeviceObject,
2786 IN PIRP Irp
2787 )
2788
2789 /*++
2790
2791 Routine Description:
2792
2793 This is the entry called by the I/O system for read requests.
2794 It builds the SRB and sends it to the port driver.
2795
2796 Arguments:
2797
2798 DeviceObject - the system object for the device.
2799 Irp - IRP involved.
2800
2801 Return Value:
2802
2803 NT Status
2804
2805 --*/
2806
2807 {
2808 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
2809 PIO_STACK_LOCATION currentIrpStack = IoGetCurrentIrpStackLocation(Irp);
2810 ULONG transferByteCount = currentIrpStack->Parameters.Read.Length;
2811 LARGE_INTEGER startingOffset = currentIrpStack->Parameters.Read.ByteOffset;
2812
2813 //
2814 // If the cd is playing music then reject this request.
2815 //
2816
2817 if (PLAY_ACTIVE(deviceExtension)) {
2818 Irp->IoStatus.Status = STATUS_DEVICE_BUSY;
2819 return STATUS_DEVICE_BUSY;
2820 }
2821
2822 //
2823 // Verify parameters of this request.
2824 // Check that ending sector is on disc and
2825 // that number of bytes to transfer is a multiple of
2826 // the sector size.
2827 //
2828
2829 startingOffset.QuadPart = currentIrpStack->Parameters.Read.ByteOffset.QuadPart +
2830 transferByteCount;
2831
2832 if (!deviceExtension->DiskGeometry->Geometry.BytesPerSector) {
2833 deviceExtension->DiskGeometry->Geometry.BytesPerSector = 2048;
2834 }
2835
2836 if ((startingOffset.QuadPart > deviceExtension->PartitionLength.QuadPart) ||
2837 (transferByteCount & (deviceExtension->DiskGeometry->Geometry.BytesPerSector - 1))) {
2838
2839 DebugPrint((1,"ScsiCdRomRead: Invalid I/O parameters\n"));
2840 DebugPrint((1, "\toffset %x:%x, Length %x:%x\n",
2841 startingOffset.u.HighPart,
2842 startingOffset.u.LowPart,
2843 deviceExtension->PartitionLength.u.HighPart,
2844 deviceExtension->PartitionLength.u.LowPart));
2845 DebugPrint((1, "\tbps %x\n", deviceExtension->DiskGeometry->Geometry.BytesPerSector));
2846
2847 //
2848 // Fail request with status of invalid parameters.
2849 //
2850
2851 Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
2852
2853 return STATUS_INVALID_PARAMETER;
2854 }
2855
2856
2857 return STATUS_SUCCESS;
2858
2859 } // end ScsiCdRomReadVerification()
2860
2861
2862 NTSTATUS
2863 NTAPI
2864 CdRomDeviceControlCompletion(
2865 IN PDEVICE_OBJECT DeviceObject,
2866 IN PIRP Irp,
2867 IN PVOID Context
2868 )
2869 {
2870 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
2871 PDEVICE_EXTENSION physicalExtension = deviceExtension->PhysicalDevice->DeviceExtension;
2872 PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
2873 PCDROM_DATA cdData = (PCDROM_DATA)(deviceExtension + 1);
2874 BOOLEAN use6Byte = cdData->XAFlags & XA_USE_6_BYTE;
2875 PIO_STACK_LOCATION realIrpStack;
2876 PIO_STACK_LOCATION realIrpNextStack;
2877 PSCSI_REQUEST_BLOCK srb = Context;
2878 PIRP realIrp = NULL;
2879 NTSTATUS status;
2880 BOOLEAN retry;
2881
2882 //
2883 // Extract the 'real' irp from the irpstack.
2884 //
2885
2886 realIrp = (PIRP) irpStack->Parameters.Others.Argument2;
2887 realIrpStack = IoGetCurrentIrpStackLocation(realIrp);
2888 realIrpNextStack = IoGetNextIrpStackLocation(realIrp);
2889
2890 //
2891 // Check SRB status for success of completing request.
2892 //
2893
2894 if (SRB_STATUS(srb->SrbStatus) != SRB_STATUS_SUCCESS) {
2895
2896 DebugPrint((2,
2897 "CdRomDeviceControlCompletion: Irp %lx, Srb %lx Real Irp %lx Status %lx\n",
2898 Irp,
2899 srb,
2900 realIrp,
2901 srb->SrbStatus));
2902
2903 //
2904 // Release the queue if it is frozen.
2905 //
2906
2907 if (srb->SrbStatus & SRB_STATUS_QUEUE_FROZEN) {
2908 DebugPrint((2, "CdRomDeviceControlCompletion: Releasing Queue\n"));
2909 ScsiClassReleaseQueue(DeviceObject);
2910 }
2911
2912
2913 retry = ScsiClassInterpretSenseInfo(DeviceObject,
2914 srb,
2915 irpStack->MajorFunction,
2916 irpStack->Parameters.DeviceIoControl.IoControlCode,
2917 MAXIMUM_RETRIES - ((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1),
2918 &status);
2919
2920 DebugPrint((2, "CdRomDeviceControlCompletion: IRP will %sbe retried\n",
2921 (retry ? "" : "not ")));
2922
2923 //
2924 // Some of the Device Controls need special cases on non-Success status's.
2925 //
2926
2927 if (realIrpStack->MajorFunction == IRP_MJ_DEVICE_CONTROL) {
2928 if ((realIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_GET_LAST_SESSION) ||
2929 (realIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_READ_TOC) ||
2930 (realIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_GET_CONTROL) ||
2931 (realIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_GET_VOLUME)) {
2932
2933 if (status == STATUS_DATA_OVERRUN) {
2934 status = STATUS_SUCCESS;
2935 retry = FALSE;
2936 }
2937 }
2938
2939 if (realIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_READ_Q_CHANNEL) {
2940 PLAY_ACTIVE(deviceExtension) = FALSE;
2941 }
2942 }
2943
2944 //
2945 // If the status is verified required and the this request
2946 // should bypass verify required then retry the request.
2947 //
2948
2949 if (realIrpStack->Flags & SL_OVERRIDE_VERIFY_VOLUME &&
2950 status == STATUS_VERIFY_REQUIRED) {
2951
2952 if (((realIrpStack->MajorFunction == IRP_MJ_DEVICE_CONTROL) ||
2953 (realIrpStack->MajorFunction == IRP_MJ_INTERNAL_DEVICE_CONTROL)) &&
2954 (realIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_CHECK_VERIFY)) {
2955
2956 //
2957 // Update the geometry information, as the media could have changed.
2958 // The completion routine for this will complete the real irp and start
2959 // the next packet.
2960 //
2961
2962 status = CdRomUpdateCapacity(deviceExtension,realIrp, NULL);
2963 DebugPrint((2, "CdRomDeviceControlCompletion: [%lx] CdRomUpdateCapacity completed with status %lx\n", realIrp, status));
2964 ASSERT(status == STATUS_PENDING);
2965
2966 return STATUS_MORE_PROCESSING_REQUIRED;
2967
2968 } else {
2969
2970 status = STATUS_IO_DEVICE_ERROR;
2971 retry = TRUE;
2972 }
2973
2974 }
2975
2976 if (retry && (realIrpNextStack->Parameters.Others.Argument1 = (PVOID)((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1-1))) {
2977
2978
2979 if (((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1)) {
2980
2981 //
2982 // Retry request.
2983 //
2984
2985 DebugPrint((1, "Retry request %lx - Calling StartIo\n", Irp));
2986
2987
2988 ExFreePool(srb->SenseInfoBuffer);
2989 if (srb->DataBuffer) {
2990 ExFreePool(srb->DataBuffer);
2991 }
2992 ExFreePool(srb);
2993 if (Irp->MdlAddress) {
2994 IoFreeMdl(Irp->MdlAddress);
2995 }
2996
2997 IoFreeIrp(Irp);
2998
2999 //
3000 // Call StartIo directly since IoStartNextPacket hasn't been called,
3001 // the serialisation is still intact.
3002 //
3003
3004 ScsiCdRomStartIo(DeviceObject, realIrp);
3005 return STATUS_MORE_PROCESSING_REQUIRED;
3006
3007 }
3008
3009 //
3010 // Exhausted retries. Fall through and complete the request with the appropriate status.
3011 //
3012
3013 }
3014 } else {
3015
3016 //
3017 // Set status for successful request.
3018 //
3019
3020 status = STATUS_SUCCESS;
3021 }
3022
3023 if (NT_SUCCESS(status)) {
3024
3025 switch (realIrpStack->Parameters.DeviceIoControl.IoControlCode) {
3026
3027 case IOCTL_CDROM_GET_DRIVE_GEOMETRY: {
3028
3029 PREAD_CAPACITY_DATA readCapacityBuffer = srb->DataBuffer;
3030 ULONG lastSector;
3031 ULONG bps;
3032 ULONG lastBit;
3033 ULONG tmp;
3034
3035 //
3036 // Swizzle bytes from Read Capacity and translate into
3037 // the necessary geometry information in the device extension.
3038 //
3039
3040 tmp = readCapacityBuffer->BytesPerBlock;
3041 ((PFOUR_BYTE)&bps)->Byte0 = ((PFOUR_BYTE)&tmp)->Byte3;
3042 ((PFOUR_BYTE)&bps)->Byte1 = ((PFOUR_BYTE)&tmp)->Byte2;
3043 ((PFOUR_BYTE)&bps)->Byte2 = ((PFOUR_BYTE)&tmp)->Byte1;
3044 ((PFOUR_BYTE)&bps)->Byte3 = ((PFOUR_BYTE)&tmp)->Byte0;
3045
3046 //
3047 // Insure that bps is a power of 2.
3048 // This corrects a problem with the HP 4020i CDR where it
3049 // returns an incorrect number for bytes per sector.
3050 //
3051
3052 if (!bps) {
3053 bps = 2048;
3054 } else {
3055 lastBit = (ULONG) -1;
3056 while (bps) {
3057 lastBit++;
3058 bps = bps >> 1;
3059 }
3060
3061 bps = 1 << lastBit;
3062 }
3063 deviceExtension->DiskGeometry->Geometry.BytesPerSector = bps;
3064
3065 DebugPrint((2,
3066 "CdRomDeviceControlCompletion: Calculated bps %#x\n",
3067 deviceExtension->DiskGeometry->Geometry.BytesPerSector));
3068
3069 //
3070 // Copy last sector in reverse byte order.
3071 //
3072
3073 tmp = readCapacityBuffer->LogicalBlockAddress;
3074 ((PFOUR_BYTE)&lastSector)->Byte0 = ((PFOUR_BYTE)&tmp)->Byte3;
3075 ((PFOUR_BYTE)&lastSector)->Byte1 = ((PFOUR_BYTE)&tmp)->Byte2;
3076 ((PFOUR_BYTE)&lastSector)->Byte2 = ((PFOUR_BYTE)&tmp)->Byte1;
3077 ((PFOUR_BYTE)&lastSector)->Byte3 = ((PFOUR_BYTE)&tmp)->Byte0;
3078
3079 //
3080 // Calculate sector to byte shift.
3081 //
3082
3083 WHICH_BIT(bps, deviceExtension->SectorShift);
3084
3085 DebugPrint((2,"SCSI ScsiClassReadDriveCapacity: Sector size is %d\n",
3086 deviceExtension->DiskGeometry->Geometry.BytesPerSector));
3087
3088 DebugPrint((2,"SCSI ScsiClassReadDriveCapacity: Number of Sectors is %d\n",
3089 lastSector + 1));
3090
3091 //
3092 // Calculate media capacity in bytes.
3093 //
3094
3095 deviceExtension->PartitionLength.QuadPart = (LONGLONG)(lastSector + 1);
3096
3097 //
3098 // Calculate number of cylinders.
3099 //
3100
3101 deviceExtension->DiskGeometry->Geometry.Cylinders.QuadPart = (LONGLONG)((lastSector + 1)/(32 * 64));
3102
3103 deviceExtension->PartitionLength.QuadPart =
3104 (deviceExtension->PartitionLength.QuadPart << deviceExtension->SectorShift);
3105
3106 if (DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) {
3107
3108 //
3109 // This device supports removable media.
3110 //
3111
3112 deviceExtension->DiskGeometry->Geometry.MediaType = RemovableMedia;
3113
3114 } else {
3115
3116 //
3117 // Assume media type is fixed disk.
3118 //
3119
3120 deviceExtension->DiskGeometry->Geometry.MediaType = FixedMedia;
3121 }
3122
3123 //
3124 // Assume sectors per track are 32;
3125 //
3126
3127 deviceExtension->DiskGeometry->Geometry.SectorsPerTrack = 32;
3128
3129 //
3130 // Assume tracks per cylinder (number of heads) is 64.
3131 //
3132
3133 deviceExtension->DiskGeometry->Geometry.TracksPerCylinder = 64;
3134
3135 //
3136 // Copy the device extension's geometry info into the user buffer.
3137 //
3138
3139 RtlMoveMemory(realIrp->AssociatedIrp.SystemBuffer,
3140 deviceExtension->DiskGeometry,
3141 sizeof(DISK_GEOMETRY));
3142
3143 //
3144 // update information field.
3145 //
3146
3147 realIrp->IoStatus.Information = sizeof(DISK_GEOMETRY);
3148 break;
3149 }
3150
3151 case IOCTL_CDROM_CHECK_VERIFY:
3152
3153 if((realIrpStack->Parameters.DeviceIoControl.IoControlCode == IOCTL_CDROM_CHECK_VERIFY) &&
3154 (realIrpStack->Parameters.DeviceIoControl.OutputBufferLength)) {
3155
3156 *((PULONG)realIrp->AssociatedIrp.SystemBuffer) =
3157 physicalExtension->MediaChangeCount;
3158 realIrp->IoStatus.Information = sizeof(ULONG);
3159 } else {
3160 realIrp->IoStatus.Information = 0;
3161 }
3162
3163 DebugPrint((2, "CdRomDeviceControlCompletion: [%lx] completing CHECK_VERIFY buddy irp %lx\n", realIrp, Irp));
3164 break;
3165
3166 case IOCTL_CDROM_GET_LAST_SESSION:
3167 case IOCTL_CDROM_READ_TOC: {
3168
3169 PCDROM_TOC toc = srb->DataBuffer;
3170
3171 //
3172 // Copy the device extension's geometry info into the user buffer.
3173 //
3174
3175 RtlMoveMemory(realIrp->AssociatedIrp.SystemBuffer,
3176 toc,
3177 srb->DataTransferLength);
3178
3179 //
3180 // update information field.
3181 //
3182
3183 realIrp->IoStatus.Information = srb->DataTransferLength;
3184 break;
3185 }
3186
3187 case IOCTL_CDROM_PLAY_AUDIO_MSF:
3188
3189 PLAY_ACTIVE(deviceExtension) = TRUE;
3190
3191 break;
3192
3193 case IOCTL_CDROM_READ_Q_CHANNEL: {
3194
3195 PSUB_Q_CHANNEL_DATA userChannelData = realIrp->AssociatedIrp.SystemBuffer;
3196 #if DBG
3197 PCDROM_SUB_Q_DATA_FORMAT inputBuffer = realIrp->AssociatedIrp.SystemBuffer;
3198 #endif
3199 PSUB_Q_CHANNEL_DATA subQPtr = srb->DataBuffer;
3200
3201 #if DBG
3202 switch( inputBuffer->Format ) {
3203
3204 case IOCTL_CDROM_CURRENT_POSITION:
3205 DebugPrint((2,"CdRomDeviceControlCompletion: Audio Status is %u\n", subQPtr->CurrentPosition.Header.AudioStatus ));
3206 DebugPrint((2,"CdRomDeviceControlCompletion: ADR = 0x%x\n", subQPtr->CurrentPosition.ADR ));
3207 DebugPrint((2,"CdRomDeviceControlCompletion: Control = 0x%x\n", subQPtr->CurrentPosition.Control ));
3208 DebugPrint((2,"CdRomDeviceControlCompletion: Track = %u\n", subQPtr->CurrentPosition.TrackNumber ));
3209 DebugPrint((2,"CdRomDeviceControlCompletion: Index = %u\n", subQPtr->CurrentPosition.IndexNumber ));
3210 DebugPrint((2,"CdRomDeviceControlCompletion: Absolute Address = %x\n", *((PULONG)subQPtr->CurrentPosition.AbsoluteAddress) ));
3211 DebugPrint((2,"CdRomDeviceControlCompletion: Relative Address = %x\n", *((PULONG)subQPtr->CurrentPosition.TrackRelativeAddress) ));
3212 break;
3213
3214 case IOCTL_CDROM_MEDIA_CATALOG:
3215 DebugPrint((2,"CdRomDeviceControlCompletion: Audio Status is %u\n", subQPtr->MediaCatalog.Header.AudioStatus ));
3216 DebugPrint((2,"CdRomDeviceControlCompletion: Mcval is %u\n", subQPtr->MediaCatalog.Mcval ));
3217 break;
3218
3219 case IOCTL_CDROM_TRACK_ISRC:
3220 DebugPrint((2,"CdRomDeviceControlCompletion: Audio Status is %u\n", subQPtr->TrackIsrc.Header.AudioStatus ));
3221 DebugPrint((2,"CdRomDeviceControlCompletion: Tcval is %u\n", subQPtr->TrackIsrc.Tcval ));
3222 break;
3223
3224 }
3225 #endif
3226
3227 //
3228 // Update the play active status.
3229 //
3230
3231 if (subQPtr->CurrentPosition.Header.AudioStatus == AUDIO_STATUS_IN_PROGRESS) {
3232
3233 PLAY_ACTIVE(deviceExtension) = TRUE;
3234
3235 } else {
3236
3237 PLAY_ACTIVE(deviceExtension) = FALSE;
3238
3239 }
3240
3241 //
3242 // Check if output buffer is large enough to contain
3243 // the data.
3244 //
3245
3246 if (realIrpStack->Parameters.DeviceIoControl.OutputBufferLength <
3247 srb->DataTransferLength) {
3248
3249 srb->DataTransferLength =
3250 realIrpStack->Parameters.DeviceIoControl.OutputBufferLength;
3251 }
3252
3253 //
3254 // Copy our buffer into users.
3255 //
3256
3257 RtlMoveMemory(userChannelData,
3258 subQPtr,
3259 srb->DataTransferLength);
3260
3261 realIrp->IoStatus.Information = srb->DataTransferLength;
3262 break;
3263 }
3264
3265 case IOCTL_CDROM_PAUSE_AUDIO:
3266
3267 PLAY_ACTIVE(deviceExtension) = FALSE;
3268 realIrp->IoStatus.Information = 0;
3269 break;
3270
3271 case IOCTL_CDROM_RESUME_AUDIO:
3272
3273 realIrp->IoStatus.Information = 0;
3274 break;
3275
3276 case IOCTL_CDROM_SEEK_AUDIO_MSF:
3277
3278 realIrp->IoStatus.Information = 0;
3279 break;
3280
3281 case IOCTL_CDROM_STOP_AUDIO:
3282
3283 PLAY_ACTIVE(deviceExtension) = FALSE;
3284
3285 realIrp->IoStatus.Information = 0;
3286 break;
3287
3288 case IOCTL_CDROM_GET_CONTROL: {
3289
3290 PCDROM_AUDIO_CONTROL audioControl = srb->DataBuffer;
3291 PAUDIO_OUTPUT audioOutput;
3292 ULONG bytesTransferred;
3293
3294 audioOutput = ScsiClassFindModePage((PCHAR)audioControl,
3295 srb->DataTransferLength,
3296 CDROM_AUDIO_CONTROL_PAGE,
3297 use6Byte);
3298 //
3299 // Verify the page is as big as expected.
3300 //
3301
3302 bytesTransferred = (PCHAR) audioOutput - (PCHAR) audioControl +
3303 sizeof(AUDIO_OUTPUT);
3304
3305 if (audioOutput != NULL &&
3306 srb->DataTransferLength >= bytesTransferred) {
3307
3308 audioControl->LbaFormat = audioOutput->LbaFormat;
3309
3310 audioControl->LogicalBlocksPerSecond =
3311 (audioOutput->LogicalBlocksPerSecond[0] << (UCHAR)8) |
3312 audioOutput->LogicalBlocksPerSecond[1];
3313
3314 realIrp->IoStatus.Information = sizeof(CDROM_AUDIO_CONTROL);
3315
3316 } else {
3317 realIrp->IoStatus.Information = 0;
3318 status = STATUS_INVALID_DEVICE_REQUEST;
3319 }
3320 break;
3321 }
3322
3323 case IOCTL_CDROM_GET_VOLUME: {
3324
3325 PAUDIO_OUTPUT audioOutput;
3326 PVOLUME_CONTROL volumeControl = srb->DataBuffer;
3327 ULONG i,bytesTransferred;
3328
3329 audioOutput = ScsiClassFindModePage((PCHAR)volumeControl,
3330 srb->DataTransferLength,
3331 CDROM_AUDIO_CONTROL_PAGE,
3332 use6Byte);
3333
3334 //
3335 // Verify the page is as big as expected.
3336 //
3337
3338 bytesTransferred = (PCHAR) audioOutput - (PCHAR) volumeControl +
3339 sizeof(AUDIO_OUTPUT);
3340
3341 if (audioOutput != NULL &&
3342 srb->DataTransferLength >= bytesTransferred) {
3343
3344 for (i=0; i<4; i++) {
3345 volumeControl->PortVolume[i] =
3346 audioOutput->PortOutput[i].Volume;
3347 }
3348
3349 //
3350 // Set bytes transferred in IRP.
3351 //
3352
3353 realIrp->IoStatus.Information = sizeof(VOLUME_CONTROL);
3354
3355 } else {
3356 realIrp->IoStatus.Information = 0;
3357 status = STATUS_INVALID_DEVICE_REQUEST;
3358 }
3359
3360 break;
3361 }
3362
3363 case IOCTL_CDROM_SET_VOLUME:
3364
3365 realIrp->IoStatus.Information = sizeof(VOLUME_CONTROL);
3366 break;
3367
3368 default:
3369
3370 ASSERT(FALSE);
3371 realIrp->IoStatus.Information = 0;
3372 status = STATUS_INVALID_DEVICE_REQUEST;
3373
3374 } // end switch()
3375 }
3376
3377 //
3378 // Deallocate srb and sense buffer.
3379 //
3380
3381 if (srb) {
3382 if (srb->DataBuffer) {
3383 ExFreePool(srb->DataBuffer);
3384 }
3385 if (srb->SenseInfoBuffer) {
3386 ExFreePool(srb->SenseInfoBuffer);
3387 }
3388 ExFreePool(srb);
3389 }
3390
3391 if (realIrp->PendingReturned) {
3392 IoMarkIrpPending(realIrp);
3393 }
3394
3395 if (Irp->MdlAddress) {
3396 IoFreeMdl(Irp->MdlAddress);
3397 }
3398
3399 IoFreeIrp(Irp);
3400
3401 //
3402 // Set status in completing IRP.
3403 //
3404
3405 realIrp->IoStatus.Status = status;
3406
3407 //
3408 // Set the hard error if necessary.
3409 //
3410
3411 if (!NT_SUCCESS(status) && IoIsErrorUserInduced(status)) {
3412
3413 //
3414 // Store DeviceObject for filesystem, and clear
3415 // in IoStatus.Information field.
3416 //
3417
3418 DebugPrint((1, "CdRomDeviceCompletion - Setting Hard Error on realIrp %lx\n",
3419 realIrp));
3420 IoSetHardErrorOrVerifyDevice(realIrp, DeviceObject);
3421 realIrp->IoStatus.Information = 0;
3422 }
3423
3424 IoCompleteRequest(realIrp, IO_DISK_INCREMENT);
3425
3426 IoStartNextPacket(DeviceObject, FALSE);
3427
3428 return STATUS_MORE_PROCESSING_REQUIRED;
3429 }
3430
3431 NTSTATUS
3432 NTAPI
3433 CdRomSetVolumeIntermediateCompletion(
3434 IN PDEVICE_OBJECT DeviceObject,
3435 IN PIRP Irp,
3436 IN PVOID Context
3437 )
3438 {
3439 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
3440 PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
3441 PCDROM_DATA cdData = (PCDROM_DATA)(deviceExtension + 1);
3442 BOOLEAN use6Byte = cdData->XAFlags & XA_USE_6_BYTE;
3443 PIO_STACK_LOCATION realIrpStack;
3444 PIO_STACK_LOCATION realIrpNextStack;
3445 PSCSI_REQUEST_BLOCK srb = Context;
3446 PIRP realIrp = NULL;
3447 NTSTATUS status;
3448 BOOLEAN retry;
3449
3450 //
3451 // Extract the 'real' irp from the irpstack.
3452 //
3453
3454 realIrp = (PIRP) irpStack->Parameters.Others.Argument2;
3455 realIrpStack = IoGetCurrentIrpStackLocation(realIrp);
3456 realIrpNextStack = IoGetNextIrpStackLocation(realIrp);
3457
3458 //
3459 // Check SRB status for success of completing request.
3460 //
3461
3462 if (SRB_STATUS(srb->SrbStatus) != SRB_STATUS_SUCCESS) {
3463
3464 DebugPrint((2,
3465 "CdRomSetVolumeIntermediateCompletion: Irp %lx, Srb %lx Real Irp\n",
3466 Irp,
3467 srb,
3468 realIrp));
3469
3470 //
3471 // Release the queue if it is frozen.
3472 //
3473
3474 if (srb->SrbStatus & SRB_STATUS_QUEUE_FROZEN) {
3475 ScsiClassReleaseQueue(DeviceObject);
3476 }
3477
3478
3479 retry = ScsiClassInterpretSenseInfo(DeviceObject,
3480 srb,
3481 irpStack->MajorFunction,
3482 irpStack->Parameters.DeviceIoControl.IoControlCode,
3483 MAXIMUM_RETRIES - ((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1),
3484 &status);
3485
3486 if (status == STATUS_DATA_OVERRUN) {
3487 status = STATUS_SUCCESS;
3488 retry = FALSE;
3489 }
3490
3491 //
3492 // If the status is verified required and the this request
3493 // should bypass verify required then retry the request.
3494 //
3495
3496 if (realIrpStack->Flags & SL_OVERRIDE_VERIFY_VOLUME &&
3497 status == STATUS_VERIFY_REQUIRED) {
3498
3499 status = STATUS_IO_DEVICE_ERROR;
3500 retry = TRUE;
3501 }
3502
3503 if (retry && (realIrpNextStack->Parameters.Others.Argument1 = (PVOID)((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1-1))) {
3504
3505 if (((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1)) {
3506
3507 //
3508 // Retry request.
3509 //
3510
3511 DebugPrint((1, "Retry request %lx - Calling StartIo\n", Irp));
3512
3513
3514 ExFreePool(srb->SenseInfoBuffer);
3515 ExFreePool(srb->DataBuffer);
3516 ExFreePool(srb);
3517 if (Irp->MdlAddress) {
3518 IoFreeMdl(Irp->MdlAddress);
3519 }
3520
3521 IoFreeIrp(Irp);
3522
3523 //
3524 // Call StartIo directly since IoStartNextPacket hasn't been called,
3525 // the serialisation is still intact.
3526 //
3527 ScsiCdRomStartIo(DeviceObject, realIrp);
3528 return STATUS_MORE_PROCESSING_REQUIRED;
3529
3530 }
3531
3532 //
3533 // Exhausted retries. Fall through and complete the request with the appropriate status.
3534 //
3535
3536 }
3537 } else {
3538
3539 //
3540 // Set status for successful request.
3541 //
3542
3543 status = STATUS_SUCCESS;
3544 }
3545
3546 if (NT_SUCCESS(status)) {
3547
3548 PAUDIO_OUTPUT audioInput = NULL;
3549 PAUDIO_OUTPUT audioOutput;
3550 PVOLUME_CONTROL volumeControl = realIrp->AssociatedIrp.SystemBuffer;
3551 ULONG i,bytesTransferred,headerLength;
3552 PVOID dataBuffer;
3553 PCDB cdb;
3554
3555 audioInput = ScsiClassFindModePage((PCHAR)srb->DataBuffer,
3556 srb->DataTransferLength,
3557 CDROM_AUDIO_CONTROL_PAGE,
3558 use6Byte);
3559
3560 //
3561 // Check to make sure the mode sense data is valid before we go on
3562 //
3563
3564 if(audioInput == NULL) {
3565
3566 DebugPrint((1, "Mode Sense Page %d not found\n",
3567 CDROM_AUDIO_CONTROL_PAGE));
3568
3569 realIrp->IoStatus.Information = 0;
3570 realIrp->IoStatus.Status = STATUS_IO_DEVICE_ERROR;
3571 IoCompleteRequest(realIrp, IO_DISK_INCREMENT);
3572 ExFreePool(srb->SenseInfoBuffer);
3573 ExFreePool(srb);
3574 IoFreeMdl(Irp->MdlAddress);
3575 IoFreeIrp(Irp);
3576 return STATUS_MORE_PROCESSING_REQUIRED;
3577 }
3578
3579 if (use6Byte) {
3580 headerLength = sizeof(MODE_PARAMETER_HEADER);
3581 } else {
3582 headerLength = sizeof(MODE_PARAMETER_HEADER10);
3583 }
3584
3585 bytesTransferred = sizeof(AUDIO_OUTPUT) + headerLength;
3586
3587 //
3588 // Allocate a new buffer for the mode select.
3589 //
3590
3591 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned, bytesTransferred);
3592
3593 if (!dataBuffer) {
3594 realIrp->IoStatus.Information = 0;
3595 realIrp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
3596 IoCompleteRequest(realIrp, IO_DISK_INCREMENT);
3597 ExFreePool(srb->SenseInfoBuffer);
3598 ExFreePool(srb);
3599 IoFreeMdl(Irp->MdlAddress);
3600 IoFreeIrp(Irp);
3601 return STATUS_MORE_PROCESSING_REQUIRED;
3602 }
3603
3604 RtlZeroMemory(dataBuffer, bytesTransferred);
3605
3606 //
3607 // Rebuild the data buffer to include the user requested values.
3608 //
3609
3610 audioOutput = (PAUDIO_OUTPUT) ((PCHAR) dataBuffer + headerLength);
3611
3612 for (i=0; i<4; i++) {
3613 audioOutput->PortOutput[i].Volume =
3614 volumeControl->PortVolume[i];
3615 audioOutput->PortOutput[i].ChannelSelection =
3616 audioInput->PortOutput[i].ChannelSelection;
3617 }
3618
3619 audioOutput->CodePage = CDROM_AUDIO_CONTROL_PAGE;
3620 audioOutput->ParameterLength = sizeof(AUDIO_OUTPUT) - 2;
3621 audioOutput->Immediate = MODE_SELECT_IMMEDIATE;
3622
3623 //
3624 // Free the old data buffer, mdl.
3625 //
3626
3627 ExFreePool(srb->DataBuffer);
3628 IoFreeMdl(Irp->MdlAddress);
3629
3630 //
3631 // rebuild the srb.
3632 //
3633
3634 cdb = (PCDB)srb->Cdb;
3635 RtlZeroMemory(cdb, CDB12GENERIC_LENGTH);
3636
3637 srb->SrbStatus = srb->ScsiStatus = 0;
3638 srb->SrbFlags = deviceExtension->SrbFlags;
3639 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_OUT);
3640 srb->DataTransferLength = bytesTransferred;
3641
3642 if (use6Byte) {
3643
3644 cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT;
3645 cdb->MODE_SELECT.ParameterListLength = (UCHAR) bytesTransferred;
3646 cdb->MODE_SELECT.PFBit = 1;
3647 srb->CdbLength = 6;
3648 } else {
3649
3650 cdb->MODE_SELECT10.OperationCode = SCSIOP_MODE_SELECT10;
3651 cdb->MODE_SELECT10.ParameterListLength[0] = (UCHAR) (bytesTransferred >> 8);
3652 cdb->MODE_SELECT10.ParameterListLength[1] = (UCHAR) (bytesTransferred & 0xFF);
3653 cdb->MODE_SELECT10.PFBit = 1;
3654 srb->CdbLength = 10;
3655 }
3656
3657 //
3658 // Prepare the MDL
3659 //
3660
3661 Irp->MdlAddress = IoAllocateMdl(dataBuffer,
3662 bytesTransferred,
3663 FALSE,
3664 FALSE,
3665 (PIRP) NULL);
3666
3667 if (!Irp->MdlAddress) {
3668 realIrp->IoStatus.Information = 0;
3669 realIrp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
3670 IoCompleteRequest(realIrp, IO_DISK_INCREMENT);
3671 ExFreePool(srb->SenseInfoBuffer);
3672 ExFreePool(srb);
3673 ExFreePool(dataBuffer);
3674 IoFreeIrp(Irp);
3675 return STATUS_MORE_PROCESSING_REQUIRED;
3676
3677 }
3678
3679 MmBuildMdlForNonPagedPool(Irp->MdlAddress);
3680 srb->DataBuffer = dataBuffer;
3681
3682 irpStack = IoGetNextIrpStackLocation(Irp);
3683 irpStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
3684 irpStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_SCSI_EXECUTE_IN;
3685 irpStack->Parameters.Scsi.Srb = srb;
3686
3687 //
3688 // reset the irp completion.
3689 //
3690
3691 IoSetCompletionRoutine(Irp,
3692 CdRomDeviceControlCompletion,
3693 srb,
3694 TRUE,
3695 TRUE,
3696 TRUE);
3697 //
3698 // Call the port driver.
3699 //
3700
3701 IoCallDriver(deviceExtension->PortDeviceObject, Irp);
3702
3703 return STATUS_MORE_PROCESSING_REQUIRED;
3704 }
3705
3706 //
3707 // Deallocate srb and sense buffer.
3708 //
3709
3710 if (srb) {
3711 if (srb->DataBuffer) {
3712 ExFreePool(srb->DataBuffer);
3713 }
3714 if (srb->SenseInfoBuffer) {
3715 ExFreePool(srb->SenseInfoBuffer);
3716 }
3717 ExFreePool(srb);
3718 }
3719
3720 if (Irp->PendingReturned) {
3721 IoMarkIrpPending(Irp);
3722 }
3723
3724 if (realIrp->PendingReturned) {
3725 IoMarkIrpPending(realIrp);
3726 }
3727
3728 if (Irp->MdlAddress) {
3729 IoFreeMdl(Irp->MdlAddress);
3730 }
3731
3732 IoFreeIrp(Irp);
3733
3734 //
3735 // Set status in completing IRP.
3736 //
3737
3738 realIrp->IoStatus.Status = status;
3739
3740 //
3741 // Set the hard error if necessary.
3742 //
3743
3744 if (!NT_SUCCESS(status) && IoIsErrorUserInduced(status)) {
3745
3746 //
3747 // Store DeviceObject for filesystem, and clear
3748 // in IoStatus.Information field.
3749 //
3750
3751 IoSetHardErrorOrVerifyDevice(realIrp, DeviceObject);
3752 realIrp->IoStatus.Information = 0;
3753 }
3754
3755 IoCompleteRequest(realIrp, IO_DISK_INCREMENT);
3756
3757 IoStartNextPacket(DeviceObject, FALSE);
3758
3759 return STATUS_MORE_PROCESSING_REQUIRED;
3760 }
3761
3762
3763 NTSTATUS
3764 NTAPI
3765 CdRomSwitchModeCompletion(
3766 IN PDEVICE_OBJECT DeviceObject,
3767 IN PIRP Irp,
3768 IN PVOID Context
3769 )
3770 {
3771 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
3772 PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
3773 PCDROM_DATA cdData = (PCDROM_DATA)(deviceExtension + 1);
3774 PIO_STACK_LOCATION realIrpStack;
3775 PIO_STACK_LOCATION realIrpNextStack;
3776 PSCSI_REQUEST_BLOCK srb = Context;
3777 PIRP realIrp = NULL;
3778 NTSTATUS status;
3779 BOOLEAN retry;
3780
3781 //
3782 // Extract the 'real' irp from the irpstack.
3783 //
3784
3785 realIrp = (PIRP) irpStack->Parameters.Others.Argument2;
3786 realIrpStack = IoGetCurrentIrpStackLocation(realIrp);
3787 realIrpNextStack = IoGetNextIrpStackLocation(realIrp);
3788
3789 //
3790 // Check SRB status for success of completing request.
3791 //
3792
3793 if (SRB_STATUS(srb->SrbStatus) != SRB_STATUS_SUCCESS) {
3794
3795 DebugPrint((2,
3796 "CdRomSetVolumeIntermediateCompletion: Irp %lx, Srb %lx Real Irp\n",
3797 Irp,
3798 srb,
3799 realIrp));
3800
3801 //
3802 // Release the queue if it is frozen.
3803 //
3804
3805 if (srb->SrbStatus & SRB_STATUS_QUEUE_FROZEN) {
3806 ScsiClassReleaseQueue(DeviceObject);
3807 }
3808
3809
3810 retry = ScsiClassInterpretSenseInfo(DeviceObject,
3811 srb,
3812 irpStack->MajorFunction,
3813 irpStack->Parameters.DeviceIoControl.IoControlCode,
3814 MAXIMUM_RETRIES - ((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1),
3815 &status);
3816
3817 //
3818 // If the status is verified required and the this request
3819 // should bypass verify required then retry the request.
3820 //
3821
3822 if (realIrpStack->Flags & SL_OVERRIDE_VERIFY_VOLUME &&
3823 status == STATUS_VERIFY_REQUIRED) {
3824
3825 status = STATUS_IO_DEVICE_ERROR;
3826 retry = TRUE;
3827 }
3828
3829 if (retry && (realIrpNextStack->Parameters.Others.Argument1 = (PVOID)((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1-1))) {
3830
3831 if (((ULONG_PTR)realIrpNextStack->Parameters.Others.Argument1)) {
3832
3833 //
3834 // Retry request.
3835 //
3836
3837 DebugPrint((1, "Retry request %lx - Calling StartIo\n", Irp));
3838
3839
3840 ExFreePool(srb->SenseInfoBuffer);
3841 ExFreePool(srb->DataBuffer);
3842 ExFreePool(srb);
3843 if (Irp->MdlAddress) {
3844 IoFreeMdl(Irp->MdlAddress);
3845 }
3846
3847 IoFreeIrp(Irp);
3848
3849 //
3850 // Call StartIo directly since IoStartNextPacket hasn't been called,
3851 // the serialisation is still intact.
3852 //
3853
3854 ScsiCdRomStartIo(DeviceObject, realIrp);
3855 return STATUS_MORE_PROCESSING_REQUIRED;
3856
3857 }
3858
3859 //
3860 // Exhausted retries. Fall through and complete the request with the appropriate status.
3861 //
3862 }
3863 } else {
3864
3865 //
3866 // Set status for successful request.
3867 //
3868
3869 status = STATUS_SUCCESS;
3870 }
3871
3872 if (NT_SUCCESS(status)) {
3873
3874 ULONG sectorSize, startingSector, transferByteCount;
3875 PCDB cdb;
3876
3877 //
3878 // Update device ext. to show which mode we are currently using.
3879 //
3880
3881 sectorSize = cdData->u1.BlockDescriptor.BlockLength[0] << 16;
3882 sectorSize |= (cdData->u1.BlockDescriptor.BlockLength[1] << 8);
3883 sectorSize |= (cdData->u1.BlockDescriptor.BlockLength[2]);
3884
3885 cdData->RawAccess = (sectorSize == RAW_SECTOR_SIZE) ? TRUE : FALSE;
3886
3887 //
3888 // Free the old data buffer, mdl.
3889 //
3890
3891 ExFreePool(srb->DataBuffer);
3892 IoFreeMdl(Irp->MdlAddress);
3893 IoFreeIrp(Irp);
3894
3895 //
3896 // rebuild the srb.
3897 //
3898
3899 cdb = (PCDB)srb->Cdb;
3900 RtlZeroMemory(cdb, CDB12GENERIC_LENGTH);
3901
3902
3903 if (cdData->RawAccess) {
3904
3905 PRAW_READ_INFO rawReadInfo =
3906 (PRAW_READ_INFO)realIrpStack->Parameters.DeviceIoControl.Type3InputBuffer;
3907
3908 ULONG maximumTransferLength;
3909 ULONG transferPages;
3910
3911 //
3912 // Calculate starting offset.
3913 //
3914
3915 startingSector = (ULONG)(rawReadInfo->DiskOffset.QuadPart >> deviceExtension->SectorShift);
3916 transferByteCount = rawReadInfo->SectorCount * RAW_SECTOR_SIZE;
3917 maximumTransferLength = deviceExtension->PortCapabilities->MaximumTransferLength;
3918 transferPages = ADDRESS_AND_SIZE_TO_SPAN_PAGES(MmGetMdlVirtualAddress(realIrp->MdlAddress),
3919 transferByteCount);
3920
3921 //
3922 // Determine if request is within limits imposed by miniport.
3923 // If the request is larger than the miniport's capabilities, split it.
3924 //
3925
3926 if (transferByteCount > maximumTransferLength ||
3927 transferPages > deviceExtension->PortCapabilities->MaximumPhysicalPages) {
3928
3929 realIrp->IoStatus.Information = 0;
3930 realIrp->IoStatus.Status = STATUS_INVALID_PARAMETER;
3931 IoCompleteRequest(realIrp, IO_DISK_INCREMENT);
3932
3933 ExFreePool(srb->SenseInfoBuffer);
3934 ExFreePool(srb);
3935
3936 IoStartNextPacket(DeviceObject, FALSE);
3937
3938 return STATUS_MORE_PROCESSING_REQUIRED;
3939 }
3940
3941 srb->OriginalRequest = realIrp;
3942 srb->SrbFlags = deviceExtension->SrbFlags;
3943 srb->SrbFlags |= (SRB_FLAGS_DISABLE_SYNCH_TRANSFER | SRB_FLAGS_DATA_IN);
3944 srb->DataTransferLength = transferByteCount;
3945 srb->TimeOutValue = deviceExtension->TimeOutValue;
3946 srb->CdbLength = 10;
3947 srb->DataBuffer = MmGetMdlVirtualAddress(realIrp->MdlAddress);
3948
3949 if (rawReadInfo->TrackMode == CDDA) {
3950 if (cdData->XAFlags & PLEXTOR_CDDA) {
3951
3952 srb->CdbLength = 12;
3953
3954 cdb->PLXTR_READ_CDDA.LogicalUnitNumber = deviceExtension->Lun;
3955 cdb->PLXTR_READ_CDDA.LogicalBlockByte3 = (UCHAR) (startingSector & 0xFF);
3956 cdb->PLXTR_READ_CDDA.LogicalBlockByte2 = (UCHAR) ((startingSector >> 8) & 0xFF);
3957 cdb->PLXTR_READ_CDDA.LogicalBlockByte1 = (UCHAR) ((startingSector >> 16) & 0xFF);
3958 cdb->PLXTR_READ_CDDA.LogicalBlockByte0 = (UCHAR) ((startingSector >> 24) & 0xFF);
3959
3960 cdb->PLXTR_READ_CDDA.TransferBlockByte3 = (UCHAR) (rawReadInfo->SectorCount & 0xFF);
3961 cdb->PLXTR_READ_CDDA.TransferBlockByte2 = (UCHAR) (rawReadInfo->SectorCount >> 8);
3962 cdb->PLXTR_READ_CDDA.TransferBlockByte1 = 0;
3963 cdb->PLXTR_READ_CDDA.TransferBlockByte0 = 0;
3964
3965 cdb->PLXTR_READ_CDDA.SubCode = 0;
3966 cdb->PLXTR_READ_CDDA.OperationCode = 0xD8;
3967
3968 } else if (cdData->XAFlags & NEC_CDDA) {
3969
3970 cdb->NEC_READ_CDDA.LogicalBlockByte3 = (UCHAR) (startingSector & 0xFF);
3971 cdb->NEC_READ_CDDA.LogicalBlockByte2 = (UCHAR) ((startingSector >> 8) & 0xFF);
3972 cdb->NEC_READ_CDDA.LogicalBlockByte1 = (UCHAR) ((startingSector >> 16) & 0xFF);
3973 cdb->NEC_READ_CDDA.LogicalBlockByte0 = (UCHAR) ((startingSector >> 24) & 0xFF);
3974
3975 cdb->NEC_READ_CDDA.TransferBlockByte1 = (UCHAR) (rawReadInfo->SectorCount & 0xFF);
3976 cdb->NEC_READ_CDDA.TransferBlockByte0 = (UCHAR) (rawReadInfo->SectorCount >> 8);
3977
3978 cdb->NEC_READ_CDDA.OperationCode = 0xD4;
3979 }
3980 } else {
3981 cdb->CDB10.LogicalUnitNumber = deviceExtension->Lun;
3982
3983 cdb->CDB10.TransferBlocksMsb = (UCHAR) (rawReadInfo->SectorCount >> 8);
3984 cdb->CDB10.TransferBlocksLsb = (UCHAR) (rawReadInfo->SectorCount & 0xFF);
3985
3986 cdb->CDB10.LogicalBlockByte3 = (UCHAR) (startingSector & 0xFF);
3987 cdb->CDB10.LogicalBlockByte2 = (UCHAR) ((startingSector >> 8) & 0xFF);
3988 cdb->CDB10.LogicalBlockByte1 = (UCHAR) ((startingSector >> 16) & 0xFF);
3989 cdb->CDB10.LogicalBlockByte0 = (UCHAR) ((startingSector >> 24) & 0xFF);
3990
3991 cdb->CDB10.OperationCode = SCSIOP_READ;
3992 }
3993
3994 srb->SrbStatus = srb->ScsiStatus = 0;
3995
3996
3997 irpStack = IoGetNextIrpStackLocation(realIrp);
3998 irpStack->MajorFunction = IRP_MJ_SCSI;
3999 irpStack->Parameters.Scsi.Srb = srb;
4000
4001 if (!(irpStack->Parameters.Others.Argument1)) {
4002
4003 //
4004 // Only jam this in if it doesn't exist. The completion routines can
4005 // call StartIo directly in the case of retries and resetting it will
4006 // cause infinite loops.
4007 //
4008
4009 irpStack->Parameters.Others.Argument1 = (PVOID) MAXIMUM_RETRIES;
4010 }
4011
4012 //
4013 // Set up IoCompletion routine address.
4014 //
4015
4016 IoSetCompletionRoutine(realIrp,
4017 CdRomXACompletion,
4018 srb,
4019 TRUE,
4020 TRUE,
4021 TRUE);
4022 } else {
4023
4024 ULONG maximumTransferLength = deviceExtension->PortCapabilities->MaximumTransferLength;
4025 ULONG transferPages = ADDRESS_AND_SIZE_TO_SPAN_PAGES(MmGetMdlVirtualAddress(realIrp->MdlAddress),
4026 realIrpStack->Parameters.Read.Length);
4027 //
4028 // Back to cooked sectors. Build and send a normal read.
4029 // The real work for setting offsets and checking for splitrequests was
4030 // done in startio
4031 //
4032
4033 if ((realIrpStack->Parameters.Read.Length > maximumTransferLength) ||
4034 (transferPages > deviceExtension->PortCapabilities->MaximumPhysicalPages)) {
4035
4036 //
4037 // Request needs to be split. Completion of each portion of the request will
4038 // fire off the next portion. The final request will signal Io to send a new request.
4039 //
4040
4041 ScsiClassSplitRequest(DeviceObject, realIrp, maximumTransferLength);
4042 return STATUS_MORE_PROCESSING_REQUIRED;
4043
4044 } else {
4045
4046 //
4047 // Build SRB and CDB for this IRP.
4048 //
4049
4050 ScsiClassBuildRequest(DeviceObject, realIrp);
4051
4052 }
4053 }
4054
4055 //
4056 // Call the port driver.
4057 //
4058
4059 IoCallDriver(deviceExtension->PortDeviceObject, realIrp);
4060
4061 return STATUS_MORE_PROCESSING_REQUIRED;
4062 }
4063
4064 //
4065 // Update device Extension flags to indicate that XA isn't supported.
4066 //
4067
4068 cdData->XAFlags |= XA_NOT_SUPPORTED;
4069
4070 //
4071 // Deallocate srb and sense buffer.
4072 //
4073
4074 if (srb) {
4075 if (srb->DataBuffer) {
4076 ExFreePool(srb->DataBuffer);
4077 }
4078 if (srb->SenseInfoBuffer) {
4079 ExFreePool(srb->SenseInfoBuffer);
4080 }
4081 ExFreePool(srb);
4082 }
4083
4084 if (Irp->PendingReturned) {
4085 IoMarkIrpPending(Irp);
4086 }
4087
4088 if (realIrp->PendingReturned) {
4089 IoMarkIrpPending(realIrp);
4090 }
4091
4092 if (Irp->MdlAddress) {
4093 IoFreeMdl(Irp->MdlAddress);
4094 }
4095
4096 IoFreeIrp(Irp);
4097
4098 //
4099 // Set status in completing IRP.
4100 //
4101
4102 realIrp->IoStatus.Status = status;
4103
4104 //
4105 // Set the hard error if necessary.
4106 //
4107
4108 if (!NT_SUCCESS(status) && IoIsErrorUserInduced(status)) {
4109
4110 //
4111 // Store DeviceObject for filesystem, and clear
4112 // in IoStatus.Information field.
4113 //
4114
4115 IoSetHardErrorOrVerifyDevice(realIrp, DeviceObject);
4116 realIrp->IoStatus.Information = 0;
4117 }
4118
4119 IoCompleteRequest(realIrp, IO_DISK_INCREMENT);
4120
4121 IoStartNextPacket(DeviceObject, FALSE);
4122
4123 return STATUS_MORE_PROCESSING_REQUIRED;
4124 }
4125
4126 NTSTATUS
4127 NTAPI
4128 CdRomXACompletion(
4129 IN PDEVICE_OBJECT DeviceObject,
4130 IN PIRP Irp,
4131 IN PVOID Context
4132 )
4133
4134 /*++
4135
4136 Routine Description:
4137
4138 This routine executes when the port driver has completed a request.
4139 It looks at the SRB status in the completing SRB and if not success
4140 it checks for valid request sense buffer information. If valid, the
4141 info is used to update status with more precise message of type of
4142 error. This routine deallocates the SRB.
4143
4144 Arguments:
4145
4146 DeviceObject - Supplies the device object which represents the logical
4147 unit.
4148
4149 Irp - Supplies the Irp which has completed.
4150
4151 Context - Supplies a pointer to the SRB.
4152
4153 Return Value:
4154
4155 NT status
4156
4157 --*/
4158
4159 {
4160 PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
4161 PIO_STACK_LOCATION irpNextStack = IoGetNextIrpStackLocation(Irp);
4162 PSCSI_REQUEST_BLOCK srb = Context;
4163 NTSTATUS status;
4164 BOOLEAN retry;
4165
4166 //
4167 // Check SRB status for success of completing request.
4168 //
4169
4170 if (SRB_STATUS(srb->SrbStatus) != SRB_STATUS_SUCCESS) {
4171
4172 DebugPrint((2,"ScsiClassIoComplete: IRP %lx, SRB %lx\n", Irp, srb));
4173
4174 //
4175 // Release the queue if it is frozen.
4176 //
4177
4178 if (srb->SrbStatus & SRB_STATUS_QUEUE_FROZEN) {
4179 ScsiClassReleaseQueue(DeviceObject);
4180 }
4181
4182 retry = ScsiClassInterpretSenseInfo(
4183 DeviceObject,
4184 srb,
4185 irpStack->MajorFunction,
4186 irpStack->MajorFunction == IRP_MJ_DEVICE_CONTROL ? irpStack->Parameters.DeviceIoControl.IoControlCode : 0,
4187 MAXIMUM_RETRIES - ((ULONG_PTR)irpNextStack->Parameters.Others.Argument1),
4188 &status);
4189
4190 //
4191 // If the status is verified required and the this request
4192 // should bypass verify required then retry the request.
4193 //
4194
4195 if (irpStack->Flags & SL_OVERRIDE_VERIFY_VOLUME &&
4196 status == STATUS_VERIFY_REQUIRED) {
4197
4198 status = STATUS_IO_DEVICE_ERROR;
4199 retry = TRUE;
4200 }
4201
4202 if (retry && (irpNextStack->Parameters.Others.Argument1 = (PVOID)((ULONG_PTR)irpNextStack->Parameters.Others.Argument1-1))) {
4203
4204 if (((ULONG_PTR)irpNextStack->Parameters.Others.Argument1)) {
4205
4206 //
4207 // Retry request.
4208 //
4209
4210 DebugPrint((1, "CdRomXACompletion: Retry request %lx - Calling StartIo\n", Irp));
4211
4212
4213 ExFreePool(srb->SenseInfoBuffer);
4214 ExFreePool(srb->DataBuffer);
4215 ExFreePool(srb);
4216
4217 //
4218 // Call StartIo directly since IoStartNextPacket hasn't been called,
4219 // the serialisation is still intact.
4220 //
4221
4222 ScsiCdRomStartIo(DeviceObject, Irp);
4223 return STATUS_MORE_PROCESSING_REQUIRED;
4224
4225 }
4226
4227 //
4228 // Exhausted retries. Fall through and complete the request with the appropriate status.
4229 //
4230 }
4231 } else {
4232
4233 //
4234 // Set status for successful request.
4235 //
4236
4237 status = STATUS_SUCCESS;
4238
4239 } // end if (SRB_STATUS(srb->SrbStatus) ...
4240
4241 //
4242 // Return SRB to nonpaged pool.
4243 //
4244
4245 ExFreePool(srb);
4246
4247 //
4248 // Set status in completing IRP.
4249 //
4250
4251 Irp->IoStatus.Status = status;
4252
4253 //
4254 // Set the hard error if necessary.
4255 //
4256
4257 if (!NT_SUCCESS(status) && IoIsErrorUserInduced(status)) {
4258
4259 //
4260 // Store DeviceObject for filesystem, and clear
4261 // in IoStatus.Information field.
4262 //
4263
4264 IoSetHardErrorOrVerifyDevice(Irp, DeviceObject);
4265 Irp->IoStatus.Information = 0;
4266 }
4267
4268 //
4269 // If pending has be returned for this irp then mark the current stack as
4270 // pending.
4271 //
4272
4273 if (Irp->PendingReturned) {
4274 IoMarkIrpPending(Irp);
4275 }
4276
4277 //IoCompleteRequest(Irp, IO_DISK_INCREMENT);
4278 IoStartNextPacket(DeviceObject, FALSE);
4279
4280 return status;
4281 }
4282
4283 NTSTATUS
4284 NTAPI
4285 CdRomDeviceControl(
4286 IN PDEVICE_OBJECT DeviceObject,
4287 IN PIRP Irp
4288 )
4289
4290 /*++
4291
4292 Routine Description:
4293
4294 This is the NT device control handler for CDROMs.
4295
4296 Arguments:
4297
4298 DeviceObject - for this CDROM
4299
4300 Irp - IO Request packet
4301
4302 Return Value:
4303
4304 NTSTATUS
4305
4306 --*/
4307
4308 {
4309 PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
4310 PIO_STACK_LOCATION nextStack;
4311 PKEVENT deviceControlEvent;
4312 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
4313 PCDROM_DATA cdData = (PCDROM_DATA)(deviceExtension+1);
4314 SCSI_REQUEST_BLOCK srb;
4315 NTSTATUS status;
4316 KIRQL irql;
4317
4318 ULONG ioctlCode;
4319 ULONG baseCode;
4320 ULONG functionCode;
4321
4322 RetryControl:
4323
4324 //
4325 // Zero the SRB on stack.
4326 //
4327
4328 RtlZeroMemory(&srb, sizeof(SCSI_REQUEST_BLOCK));
4329
4330 Irp->IoStatus.Information = 0;
4331
4332 //
4333 // if this is a class driver ioctl then we need to change the base code
4334 // to IOCTL_CDROM_BASE so that the switch statement can handle it.
4335 //
4336 // WARNING - currently the scsi class ioctl function codes are between
4337 // 0x200 & 0x300. this routine depends on that fact
4338 //
4339
4340 ioctlCode = irpStack->Parameters.DeviceIoControl.IoControlCode;
4341 baseCode = ioctlCode >> 16;
4342 functionCode = (ioctlCode & (~0xffffc003)) >> 2;
4343
4344 DebugPrint((1, "CdRomDeviceControl: Ioctl Code = %#08lx, Base Code = %#lx,"
4345 " Function Code = %#lx\n",
4346 ioctlCode,
4347 baseCode,
4348 functionCode
4349 ));
4350
4351 if((functionCode >= 0x200) && (functionCode <= 0x300)) {
4352
4353 ioctlCode = (ioctlCode & 0x0000ffff) | CTL_CODE(IOCTL_CDROM_BASE, 0, 0, 0);
4354
4355 DebugPrint((1, "CdRomDeviceControl: Class Code - new ioctl code is %#08lx\n",
4356 ioctlCode));
4357
4358 irpStack->Parameters.DeviceIoControl.IoControlCode = ioctlCode;
4359
4360 }
4361
4362 switch (ioctlCode) {
4363
4364 case IOCTL_CDROM_RAW_READ: {
4365
4366 LARGE_INTEGER startingOffset;
4367 ULONG transferBytes;
4368 PRAW_READ_INFO rawReadInfo = (PRAW_READ_INFO)irpStack->Parameters.DeviceIoControl.Type3InputBuffer;
4369 PUCHAR userData = (PUCHAR)Irp->AssociatedIrp.SystemBuffer;
4370
4371 //
4372 // Ensure that XA reads are supported.
4373 //
4374
4375 if (cdData->XAFlags & XA_NOT_SUPPORTED) {
4376
4377 DebugPrint((1,
4378 "CdRomDeviceControl: XA Reads not supported. Flags (%x)\n",
4379 cdData->XAFlags));
4380
4381 status = STATUS_INVALID_DEVICE_REQUEST;
4382 break;
4383 }
4384
4385 //
4386 // Check that ending sector is on disc and buffers are there and of
4387 // correct size.
4388 //
4389
4390 if (rawReadInfo == NULL) {
4391
4392 //
4393 // Called from user space. Validate the buffers.
4394 //
4395
4396 rawReadInfo = (PRAW_READ_INFO)userData;
4397 irpStack->Parameters.DeviceIoControl.Type3InputBuffer = (PVOID)userData;
4398
4399 if (rawReadInfo == NULL) {
4400
4401 DebugPrint((1,"CdRomDeviceControl: Invalid I/O parameters for XA Read (No extent info\n"));
4402
4403 Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
4404
4405 IoCompleteRequest(Irp, IO_NO_INCREMENT);
4406 return STATUS_INVALID_PARAMETER;
4407 }
4408
4409 if (irpStack->Parameters.DeviceIoControl.InputBufferLength != sizeof(RAW_READ_INFO)) {
4410
4411 DebugPrint((1,"CdRomDeviceControl: Invalid I/O parameters for XA Read (Invalid info buffer\n"));
4412
4413 Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
4414
4415 IoCompleteRequest(Irp, IO_NO_INCREMENT);
4416 return STATUS_INVALID_PARAMETER;
4417 }
4418 }
4419
4420 startingOffset.QuadPart = rawReadInfo->DiskOffset.QuadPart;
4421 transferBytes = rawReadInfo->SectorCount * RAW_SECTOR_SIZE;
4422
4423 if (irpStack->Parameters.DeviceIoControl.OutputBufferLength < transferBytes) {
4424
4425 DebugPrint((1,"CdRomDeviceControl: Invalid I/O parameters for XA Read (Bad buffer size)\n"));
4426
4427 //
4428 // Fail request with status of invalid parameters.
4429 //
4430
4431 Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
4432
4433 IoCompleteRequest(Irp, IO_NO_INCREMENT);
4434 return STATUS_INVALID_PARAMETER;
4435 }
4436
4437 if ((startingOffset.QuadPart + transferBytes) > deviceExtension->PartitionLength.QuadPart) {
4438
4439 DebugPrint((1,"CdRomDeviceControl: Invalid I/O parameters for XA Read (Request Out of Bounds)\n"));
4440
4441 //
4442 // Fail request with status of invalid parameters.
4443 //
4444
4445 status = STATUS_INVALID_PARAMETER;
4446 break;
4447 }
4448
4449 IoMarkIrpPending(Irp);
4450 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4451
4452 return STATUS_PENDING;
4453 }
4454
4455 case IOCTL_CDROM_GET_DRIVE_GEOMETRY: {
4456
4457 DebugPrint((2,"CdRomDeviceControl: Get drive geometry\n"));
4458
4459 if ( irpStack->Parameters.DeviceIoControl.OutputBufferLength <
4460 sizeof( DISK_GEOMETRY ) ) {
4461
4462 status = STATUS_INFO_LENGTH_MISMATCH;
4463 break;
4464 }
4465
4466 IoMarkIrpPending(Irp);
4467 IoStartPacket(DeviceObject,Irp, NULL,NULL);
4468
4469 return STATUS_PENDING;
4470 }
4471
4472 case IOCTL_CDROM_GET_LAST_SESSION:
4473 case IOCTL_CDROM_READ_TOC: {
4474
4475 //
4476 // If the cd is playing music then reject this request.
4477 //
4478
4479 if (CdRomIsPlayActive(DeviceObject)) {
4480 Irp->IoStatus.Status = STATUS_DEVICE_BUSY;
4481 IoCompleteRequest(Irp, IO_NO_INCREMENT);
4482 return STATUS_DEVICE_BUSY;
4483 }
4484
4485 IoMarkIrpPending(Irp);
4486 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4487
4488 return STATUS_PENDING;
4489 }
4490
4491 case IOCTL_CDROM_PLAY_AUDIO_MSF: {
4492
4493 //
4494 // Play Audio MSF
4495 //
4496
4497 DebugPrint((2,"CdRomDeviceControl: Play audio MSF\n"));
4498
4499 if (irpStack->Parameters.DeviceIoControl.InputBufferLength <
4500 sizeof(CDROM_PLAY_AUDIO_MSF)) {
4501
4502 //
4503 // Indicate unsuccessful status.
4504 //
4505
4506 status = STATUS_BUFFER_TOO_SMALL;
4507 break;
4508 }
4509
4510 IoMarkIrpPending(Irp);
4511 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4512
4513 return STATUS_PENDING;
4514 }
4515
4516 case IOCTL_CDROM_SEEK_AUDIO_MSF: {
4517
4518
4519 //
4520 // Seek Audio MSF
4521 //
4522
4523 DebugPrint((2,"CdRomDeviceControl: Seek audio MSF\n"));
4524
4525 if (irpStack->Parameters.DeviceIoControl.InputBufferLength <
4526 sizeof(CDROM_SEEK_AUDIO_MSF)) {
4527
4528 //
4529 // Indicate unsuccessful status.
4530 //
4531
4532 status = STATUS_BUFFER_TOO_SMALL;
4533 break;
4534 } else {
4535 IoMarkIrpPending(Irp);
4536 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4537
4538 return STATUS_PENDING;
4539
4540 }
4541 }
4542
4543 case IOCTL_CDROM_PAUSE_AUDIO: {
4544
4545 //
4546 // Pause audio
4547 //
4548
4549 DebugPrint((2, "CdRomDeviceControl: Pause audio\n"));
4550
4551 IoMarkIrpPending(Irp);
4552 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4553
4554 return STATUS_PENDING;
4555
4556 break;
4557 }
4558
4559 case IOCTL_CDROM_RESUME_AUDIO: {
4560
4561 //
4562 // Resume audio
4563 //
4564
4565 DebugPrint((2, "CdRomDeviceControl: Resume audio\n"));
4566
4567 IoMarkIrpPending(Irp);
4568 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4569
4570 return STATUS_PENDING;
4571 }
4572
4573 case IOCTL_CDROM_READ_Q_CHANNEL: {
4574
4575 if(irpStack->Parameters.DeviceIoControl.InputBufferLength <
4576 sizeof(CDROM_SUB_Q_DATA_FORMAT)) {
4577
4578 status = STATUS_BUFFER_TOO_SMALL;
4579 Irp->IoStatus.Information = 0;
4580 break;
4581 }
4582
4583 IoMarkIrpPending(Irp);
4584 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4585
4586 return STATUS_PENDING;
4587 }
4588
4589 case IOCTL_CDROM_GET_CONTROL: {
4590
4591 DebugPrint((2, "CdRomDeviceControl: Get audio control\n"));
4592
4593 //
4594 // Verify user buffer is large enough for the data.
4595 //
4596
4597 if (irpStack->Parameters.DeviceIoControl.OutputBufferLength <
4598 sizeof(CDROM_AUDIO_CONTROL)) {
4599
4600 //
4601 // Indicate unsuccessful status and no data transferred.
4602 //
4603
4604 status = STATUS_BUFFER_TOO_SMALL;
4605 Irp->IoStatus.Information = 0;
4606 break;
4607
4608 } else {
4609
4610 IoMarkIrpPending(Irp);
4611 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4612
4613 return STATUS_PENDING;
4614 }
4615 }
4616
4617 case IOCTL_CDROM_GET_VOLUME: {
4618
4619 DebugPrint((2, "CdRomDeviceControl: Get volume control\n"));
4620
4621 //
4622 // Verify user buffer is large enough for data.
4623 //
4624
4625 if (irpStack->Parameters.DeviceIoControl.OutputBufferLength <
4626 sizeof(VOLUME_CONTROL)) {
4627
4628 //
4629 // Indicate unsuccessful status and no data transferred.
4630 //
4631
4632 status = STATUS_BUFFER_TOO_SMALL;
4633 Irp->IoStatus.Information = 0;
4634 break;
4635
4636 } else {
4637 IoMarkIrpPending(Irp);
4638 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4639
4640 return STATUS_PENDING;
4641 }
4642 }
4643
4644 case IOCTL_CDROM_SET_VOLUME: {
4645
4646 DebugPrint((2, "CdRomDeviceControl: Set volume control\n"));
4647
4648 if (irpStack->Parameters.DeviceIoControl.InputBufferLength <
4649 sizeof(VOLUME_CONTROL)) {
4650
4651 //
4652 // Indicate unsuccessful status.
4653 //
4654
4655 status = STATUS_BUFFER_TOO_SMALL;
4656 break;
4657 } else {
4658
4659 IoMarkIrpPending(Irp);
4660 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4661
4662 return STATUS_PENDING;
4663 }
4664 }
4665
4666 case IOCTL_CDROM_STOP_AUDIO: {
4667
4668 //
4669 // Stop play.
4670 //
4671
4672 DebugPrint((2, "CdRomDeviceControl: Stop audio\n"));
4673
4674 IoMarkIrpPending(Irp);
4675 IoStartPacket(DeviceObject,Irp, NULL,NULL);
4676
4677 return STATUS_PENDING;
4678 }
4679
4680 case IOCTL_CDROM_CHECK_VERIFY: {
4681 DebugPrint((1, "CdRomDeviceControl: [%lx] Check Verify\n", Irp));
4682 IoMarkIrpPending(Irp);
4683
4684 if((irpStack->Parameters.DeviceIoControl.OutputBufferLength) &&
4685 (irpStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))) {
4686
4687 DebugPrint((1, "CdRomDeviceControl: Check Verify: media count "
4688 "buffer too small\n"));
4689
4690 status = STATUS_BUFFER_TOO_SMALL;
4691 break;
4692 }
4693
4694 IoStartPacket(DeviceObject,Irp, NULL,NULL);
4695
4696 return STATUS_PENDING;
4697 }
4698
4699 default: {
4700
4701 //
4702 // allocate an event and stuff it into our stack location.
4703 //
4704
4705 deviceControlEvent = ExAllocatePool(NonPagedPool, sizeof(KEVENT));
4706
4707 if(!deviceControlEvent) {
4708
4709 status = STATUS_INSUFFICIENT_RESOURCES;
4710
4711 } else {
4712
4713 PIO_STACK_LOCATION currentStack;
4714
4715 KeInitializeEvent(deviceControlEvent, NotificationEvent, FALSE);
4716
4717 currentStack = IoGetCurrentIrpStackLocation(Irp);
4718 nextStack = IoGetNextIrpStackLocation(Irp);
4719
4720 //
4721 // Copy the stack down a notch
4722 //
4723
4724 *nextStack = *currentStack;
4725
4726 IoSetCompletionRoutine(
4727 Irp,
4728 CdRomClassIoctlCompletion,
4729 deviceControlEvent,
4730 TRUE,
4731 TRUE,
4732 TRUE
4733 );
4734
4735 IoSetNextIrpStackLocation(Irp);
4736
4737 Irp->IoStatus.Status = STATUS_SUCCESS;
4738 Irp->IoStatus.Information = 0;
4739
4740 //
4741 // Override volume verifies on this stack location so that we
4742 // will be forced through the synchronization. Once this location
4743 // goes away we get the old value back
4744 //
4745
4746 nextStack->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
4747
4748 IoMarkIrpPending(Irp);
4749
4750 IoStartPacket(DeviceObject, Irp, NULL, NULL);
4751
4752 //
4753 // Wait for CdRomClassIoctlCompletion to set the event. This
4754 // ensures serialization remains intact for these unhandled device
4755 // controls.
4756 //
4757
4758 KeWaitForSingleObject(
4759 deviceControlEvent,
4760 Suspended,
4761 KernelMode,
4762 FALSE,
4763 NULL);
4764
4765 ExFreePool(deviceControlEvent);
4766
4767 DebugPrint((2, "CdRomDeviceControl: irp %#08lx synchronized\n", Irp));
4768
4769 //
4770 // If an error occured then propagate that back up - we are no longer
4771 // guaranteed synchronization and the upper layers will have to
4772 // retry.
4773 //
4774 // If no error occured, call down to the class driver directly
4775 // then start up the next request.
4776 //
4777
4778 if(Irp->IoStatus.Status == STATUS_SUCCESS) {
4779
4780 status = ScsiClassDeviceControl(DeviceObject, Irp);
4781
4782 KeRaiseIrql(DISPATCH_LEVEL, &irql);
4783
4784 IoStartNextPacket(DeviceObject, FALSE);
4785
4786 KeLowerIrql(irql);
4787 }
4788 }
4789
4790 return status;
4791 }
4792
4793 } // end switch()
4794
4795 if (status == STATUS_VERIFY_REQUIRED) {
4796
4797 //
4798 // If the status is verified required and this request
4799 // should bypass verify required then retry the request.
4800 //
4801
4802 if (irpStack->Flags & SL_OVERRIDE_VERIFY_VOLUME) {
4803
4804 status = STATUS_IO_DEVICE_ERROR;
4805 goto RetryControl;
4806
4807 }
4808 }
4809
4810 if (IoIsErrorUserInduced(status)) {
4811
4812 IoSetHardErrorOrVerifyDevice(Irp, DeviceObject);
4813
4814 }
4815
4816 //
4817 // Update IRP with completion status.
4818 //
4819
4820 Irp->IoStatus.Status = status;
4821
4822 //
4823 // Complete the request.
4824 //
4825
4826 IoCompleteRequest(Irp, IO_DISK_INCREMENT);
4827 DebugPrint((2, "CdRomDeviceControl: Status is %lx\n", status));
4828 return status;
4829
4830 } // end ScsiCdRomDeviceControl()
4831
4832 VOID
4833 NTAPI
4834 ScanForSpecial(
4835 PDEVICE_OBJECT DeviceObject,
4836 PINQUIRYDATA InquiryData,
4837 PIO_SCSI_CAPABILITIES PortCapabilities
4838 )
4839
4840 /*++
4841
4842 Routine Description:
4843
4844 This function checks to see if an SCSI logical unit requires an special
4845 initialization or error processing.
4846
4847 Arguments:
4848
4849 DeviceObject - Supplies the device object to be tested.
4850
4851 InquiryData - Supplies the inquiry data returned by the device of interest.
4852
4853 PortCapabilities - Supplies the capabilities of the device object.
4854
4855 Return Value:
4856
4857 None.
4858
4859 --*/
4860
4861 {
4862 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
4863 PCDROM_DATA cdData = (PCDROM_DATA)(deviceExtension+1);
4864
4865 //
4866 // Look for a Hitachi CDR-1750. Read-ahead must be disabled in order
4867 // to get this cdrom drive to work on scsi adapters that use PIO.
4868 //
4869
4870 if ((strncmp((PCHAR)InquiryData->VendorId, "HITACHI CDR-1750S", strlen("HITACHI CDR-1750S")) == 0 ||
4871 strncmp((PCHAR)InquiryData->VendorId, "HITACHI CDR-3650/1650S", strlen("HITACHI CDR-3650/1650S")) == 0)
4872 && PortCapabilities->AdapterUsesPio) {
4873
4874 DebugPrint((1, "CdRom ScanForSpecial: Found Hitachi CDR-1750S.\n"));
4875
4876 //
4877 // Setup an error handler to reinitialize the cd rom after it is reset.
4878 //
4879
4880 deviceExtension->ClassError = HitachProcessError;
4881
4882 } else if (( RtlCompareMemory( InquiryData->VendorId,"FUJITSU", 7 ) == 7 ) &&
4883 (( RtlCompareMemory( InquiryData->ProductId,"FMCD-101", 8 ) == 8 ) ||
4884 ( RtlCompareMemory( InquiryData->ProductId,"FMCD-102", 8 ) == 8 ))) {
4885
4886 //
4887 // When Read command is issued to FMCD-101 or FMCD-102 and there is a music
4888 // cd in it. It takes longer time than SCSI_CDROM_TIMEOUT before returning
4889 // error status.
4890 //
4891
4892 deviceExtension->TimeOutValue = 20;
4893
4894 } else if (( RtlCompareMemory( InquiryData->VendorId,"TOSHIBA", 7) == 7) &&
4895 (( RtlCompareMemory( InquiryData->ProductId,"CD-ROM XM-34", 12) == 12))) {
4896
4897 SCSI_REQUEST_BLOCK srb;
4898 PCDB cdb;
4899 ULONG length;
4900 PUCHAR buffer;
4901 NTSTATUS status;
4902
4903 //
4904 // Set the density code and the error handler.
4905 //
4906
4907 length = (sizeof(MODE_READ_RECOVERY_PAGE) + MODE_BLOCK_DESC_LENGTH + MODE_HEADER_LENGTH);
4908
4909 RtlZeroMemory(&srb, sizeof(SCSI_REQUEST_BLOCK));
4910
4911 //
4912 // Build the MODE SENSE CDB.
4913 //
4914
4915 srb.CdbLength = 6;
4916 cdb = (PCDB)srb.Cdb;
4917
4918 //
4919 // Set timeout value from device extension.
4920 //
4921
4922 srb.TimeOutValue = deviceExtension->TimeOutValue;
4923
4924 cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SENSE;
4925 cdb->MODE_SENSE.PageCode = 0x1;
4926 cdb->MODE_SENSE.AllocationLength = (UCHAR)length;
4927
4928 buffer = ExAllocatePool(NonPagedPoolCacheAligned, (sizeof(MODE_READ_RECOVERY_PAGE) + MODE_BLOCK_DESC_LENGTH + MODE_HEADER_LENGTH));
4929 if (!buffer) {
4930 return;
4931 }
4932
4933 status = ScsiClassSendSrbSynchronous(DeviceObject,
4934 &srb,
4935 buffer,
4936 length,
4937 FALSE);
4938
4939 ((PERROR_RECOVERY_DATA)buffer)->BlockDescriptor.DensityCode = 0x83;
4940 ((PERROR_RECOVERY_DATA)buffer)->Header.ModeDataLength = 0x0;
4941
4942 RtlCopyMemory(&cdData->u1.Header, buffer, sizeof(ERROR_RECOVERY_DATA));
4943
4944 RtlZeroMemory(&srb, sizeof(SCSI_REQUEST_BLOCK));
4945
4946 //
4947 // Build the MODE SENSE CDB.
4948 //
4949
4950 srb.CdbLength = 6;
4951 cdb = (PCDB)srb.Cdb;
4952
4953 //
4954 // Set timeout value from device extension.
4955 //
4956
4957 srb.TimeOutValue = deviceExtension->TimeOutValue;
4958
4959 cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT;
4960 cdb->MODE_SELECT.PFBit = 1;
4961 cdb->MODE_SELECT.ParameterListLength = (UCHAR)length;
4962
4963 status = ScsiClassSendSrbSynchronous(DeviceObject,
4964 &srb,
4965 buffer,
4966 length,
4967 TRUE);
4968
4969 if (!NT_SUCCESS(status)) {
4970 DebugPrint((1,
4971 "Cdrom.ScanForSpecial: Setting density code on Toshiba failed [%x]\n",
4972 status));
4973 }
4974
4975 deviceExtension->ClassError = ToshibaProcessError;
4976
4977 ExFreePool(buffer);
4978
4979 }
4980
4981 //
4982 // Determine special CD-DA requirements.
4983 //
4984
4985 if (RtlCompareMemory( InquiryData->VendorId,"PLEXTOR",7) == 7) {
4986 cdData->XAFlags |= PLEXTOR_CDDA;
4987 } else if (RtlCompareMemory ( InquiryData->VendorId,"NEC",3) == 3) {
4988 cdData->XAFlags |= NEC_CDDA;
4989 }
4990
4991 return;
4992 }
4993
4994 VOID
4995 NTAPI
4996 HitachProcessError(
4997 PDEVICE_OBJECT DeviceObject,
4998 PSCSI_REQUEST_BLOCK Srb,
4999 NTSTATUS *Status,
5000 BOOLEAN *Retry
5001 )
5002 /*++
5003
5004 Routine Description:
5005
5006 This routine checks the type of error. If the error indicates CD-ROM the
5007 CD-ROM needs to be reinitialized then a Mode sense command is sent to the
5008 device. This command disables read-ahead for the device.
5009
5010 Arguments:
5011
5012 DeviceObject - Supplies a pointer to the device object.
5013
5014 Srb - Supplies a pointer to the failing Srb.
5015
5016 Status - Not used.
5017
5018 Retry - Not used.
5019
5020 Return Value:
5021
5022 None.
5023
5024 --*/
5025
5026 {
5027 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
5028 PSENSE_DATA senseBuffer = Srb->SenseInfoBuffer;
5029 LARGE_INTEGER largeInt;
5030 PUCHAR modePage;
5031 PIO_STACK_LOCATION irpStack;
5032 PIRP irp;
5033 PSCSI_REQUEST_BLOCK srb;
5034 PCOMPLETION_CONTEXT context;
5035 PCDB cdb;
5036 ULONG alignment;
5037
5038 UNREFERENCED_PARAMETER(Status);
5039 UNREFERENCED_PARAMETER(Retry);
5040
5041 largeInt.QuadPart = (LONGLONG) 1;
5042
5043 //
5044 // Check the status. The initialization command only needs to be sent
5045 // if UNIT ATTENTION is returned.
5046 //
5047
5048 if (!(Srb->SrbStatus & SRB_STATUS_AUTOSENSE_VALID)) {
5049
5050 //
5051 // The drive does not require reinitialization.
5052 //
5053
5054 return;
5055 }
5056
5057 //
5058 // Found a bad HITACHI cd-rom. These devices do not work with PIO
5059 // adapters when read-ahead is enabled. Read-ahead is disabled by
5060 // a mode select command. The mode select page code is zero and the
5061 // length is 6 bytes. All of the other bytes should be zero.
5062 //
5063
5064
5065 if ((senseBuffer->SenseKey & 0xf) == SCSI_SENSE_UNIT_ATTENTION) {
5066
5067 DebugPrint((1, "HitachiProcessError: Reinitializing the CD-ROM.\n"));
5068
5069 //
5070 // Send the special mode select command to disable read-ahead
5071 // on the CD-ROM reader.
5072 //
5073
5074 alignment = DeviceObject->AlignmentRequirement ?
5075 DeviceObject->AlignmentRequirement : 1;
5076
5077 context = ExAllocatePool(
5078 NonPagedPool,
5079 sizeof(COMPLETION_CONTEXT) + HITACHI_MODE_DATA_SIZE + alignment
5080 );
5081
5082 if (context == NULL) {
5083
5084 //
5085 // If there is not enough memory to fulfill this request,
5086 // simply return. A subsequent retry will fail and another
5087 // chance to start the unit.
5088 //
5089
5090 return;
5091 }
5092
5093 context->DeviceObject = DeviceObject;
5094 srb = &context->Srb;
5095
5096 RtlZeroMemory(srb, SCSI_REQUEST_BLOCK_SIZE);
5097
5098 //
5099 // Write length to SRB.
5100 //
5101
5102 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
5103
5104 //
5105 // Set up SCSI bus address.
5106 //
5107
5108 srb->PathId = deviceExtension->PathId;
5109 srb->TargetId = deviceExtension->TargetId;
5110 srb->Lun = deviceExtension->Lun;
5111
5112 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
5113 srb->TimeOutValue = deviceExtension->TimeOutValue;
5114
5115 //
5116 // Set the transfer length.
5117 //
5118
5119 srb->DataTransferLength = HITACHI_MODE_DATA_SIZE;
5120 srb->SrbFlags = SRB_FLAGS_DATA_OUT | SRB_FLAGS_DISABLE_AUTOSENSE | SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
5121
5122 //
5123 // The data buffer must be aligned.
5124 //
5125
5126 srb->DataBuffer = (PVOID) (((ULONG_PTR) (context + 1) + (alignment - 1)) &
5127 ~(alignment - 1));
5128
5129
5130 //
5131 // Build the HITACHI read-ahead mode select CDB.
5132 //
5133
5134 srb->CdbLength = 6;
5135 cdb = (PCDB)srb->Cdb;
5136 cdb->MODE_SENSE.LogicalUnitNumber = srb->Lun;
5137 cdb->MODE_SENSE.OperationCode = SCSIOP_MODE_SELECT;
5138 cdb->MODE_SENSE.AllocationLength = HITACHI_MODE_DATA_SIZE;
5139
5140 //
5141 // Initialize the mode sense data.
5142 //
5143
5144 modePage = srb->DataBuffer;
5145
5146 RtlZeroMemory(modePage, HITACHI_MODE_DATA_SIZE);
5147
5148 //
5149 // Set the page length field to 6.
5150 //
5151
5152 modePage[5] = 6;
5153
5154 //
5155 // Build the asynchronous request to be sent to the port driver.
5156 //
5157
5158 irp = IoBuildAsynchronousFsdRequest(IRP_MJ_WRITE,
5159 DeviceObject,
5160 srb->DataBuffer,
5161 srb->DataTransferLength,
5162 &largeInt,
5163 NULL);
5164
5165 IoSetCompletionRoutine(irp,
5166 (PIO_COMPLETION_ROUTINE)ScsiClassAsynchronousCompletion,
5167 context,
5168 TRUE,
5169 TRUE,
5170 TRUE);
5171
5172 irpStack = IoGetNextIrpStackLocation(irp);
5173
5174 irpStack->MajorFunction = IRP_MJ_SCSI;
5175
5176 srb->OriginalRequest = irp;
5177
5178 //
5179 // Save SRB address in next stack for port driver.
5180 //
5181
5182 irpStack->Parameters.Scsi.Srb = (PVOID)srb;
5183
5184 //
5185 // Set up IRP Address.
5186 //
5187
5188 (VOID)IoCallDriver(deviceExtension->PortDeviceObject, irp);
5189
5190 }
5191 }
5192
5193 NTSTATUS
5194 NTAPI
5195 ToshibaProcessErrorCompletion(
5196 PDEVICE_OBJECT DeviceObject,
5197 PIRP Irp,
5198 PVOID Context
5199 )
5200
5201 /*++
5202
5203 Routine Description:
5204
5205 Completion routine for the ClassError routine to handle older Toshiba units
5206 that require setting the density code.
5207
5208 Arguments:
5209
5210 DeviceObject - Supplies a pointer to the device object.
5211
5212 Irp - Pointer to irp created to set the density code.
5213
5214 Context - Supplies a pointer to the Mode Select Srb.
5215
5216
5217 Return Value:
5218
5219 STATUS_MORE_PROCESSING_REQUIRED
5220
5221 --*/
5222
5223 {
5224
5225 PSCSI_REQUEST_BLOCK srb = Context;
5226
5227 //
5228 // Check for a frozen queue.
5229 //
5230
5231 if (srb->SrbStatus & SRB_STATUS_QUEUE_FROZEN) {
5232
5233 //
5234 // Unfreeze the queue getting the device object from the context.
5235 //
5236
5237 ScsiClassReleaseQueue(DeviceObject);
5238 }
5239
5240 //
5241 // Free all of the allocations.
5242 //
5243
5244 ExFreePool(srb->DataBuffer);
5245 ExFreePool(srb);
5246 IoFreeMdl(Irp->MdlAddress);
5247 IoFreeIrp(Irp);
5248
5249 //
5250 // Indicate the I/O system should stop processing the Irp completion.
5251 //
5252
5253 return STATUS_MORE_PROCESSING_REQUIRED;
5254 }
5255
5256 VOID
5257 NTAPI
5258 ToshibaProcessError(
5259 PDEVICE_OBJECT DeviceObject,
5260 PSCSI_REQUEST_BLOCK Srb,
5261 NTSTATUS *Status,
5262 BOOLEAN *Retry
5263 )
5264
5265 /*++
5266
5267 Routine Description:
5268
5269 This routine checks the type of error. If the error indicates a unit attention,
5270 the density code needs to be set via a Mode select command.
5271
5272 Arguments:
5273
5274 DeviceObject - Supplies a pointer to the device object.
5275
5276 Srb - Supplies a pointer to the failing Srb.
5277
5278 Status - Not used.
5279
5280 Retry - Not used.
5281
5282 Return Value:
5283
5284 None.
5285
5286 --*/
5287
5288 {
5289 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
5290 PCDROM_DATA cdData = (PCDROM_DATA)(deviceExtension+1);
5291 PSENSE_DATA senseBuffer = Srb->SenseInfoBuffer;
5292 PIO_STACK_LOCATION irpStack;
5293 PIRP irp;
5294 PSCSI_REQUEST_BLOCK srb;
5295 ULONG length;
5296 PCDB cdb;
5297 PUCHAR dataBuffer;
5298
5299
5300 if (!(Srb->SrbStatus & SRB_STATUS_AUTOSENSE_VALID)) {
5301 return;
5302 }
5303
5304 //
5305 // The Toshiba's require the density code to be set on power up and media changes.
5306 //
5307
5308 if ((senseBuffer->SenseKey & 0xf) == SCSI_SENSE_UNIT_ATTENTION) {
5309
5310
5311 irp = IoAllocateIrp((CCHAR)(deviceExtension->DeviceObject->StackSize+1),
5312 FALSE);
5313
5314 if (!irp) {
5315 return;
5316 }
5317
5318 srb = ExAllocatePool(NonPagedPool, sizeof(SCSI_REQUEST_BLOCK));
5319 if (!srb) {
5320 IoFreeIrp(irp);
5321 return;
5322 }
5323
5324
5325 length = sizeof(ERROR_RECOVERY_DATA);
5326 dataBuffer = ExAllocatePool(NonPagedPoolCacheAligned, length);
5327 if (!dataBuffer) {
5328 ExFreePool(srb);
5329 IoFreeIrp(irp);
5330 return;
5331 }
5332
5333 irp->MdlAddress = IoAllocateMdl(dataBuffer,
5334 length,
5335 FALSE,
5336 FALSE,
5337 (PIRP) NULL);
5338
5339 if (!irp->MdlAddress) {
5340 ExFreePool(srb);
5341 ExFreePool(dataBuffer);
5342 IoFreeIrp(irp);
5343 return;
5344 }
5345
5346 //
5347 // Prepare the MDL
5348 //
5349
5350 MmBuildMdlForNonPagedPool(irp->MdlAddress);
5351
5352 RtlZeroMemory(srb, sizeof(SCSI_REQUEST_BLOCK));
5353
5354 srb->DataBuffer = dataBuffer;
5355 cdb = (PCDB)srb->Cdb;
5356
5357 //
5358 // Set up the irp.
5359 //
5360
5361 IoSetNextIrpStackLocation(irp);
5362 irp->IoStatus.Status = STATUS_SUCCESS;
5363 irp->IoStatus.Information = 0;
5364 irp->Flags = 0;
5365 irp->UserBuffer = NULL;
5366
5367 //
5368 // Save the device object and irp in a private stack location.
5369 //
5370
5371 irpStack = IoGetCurrentIrpStackLocation(irp);
5372 irpStack->DeviceObject = deviceExtension->DeviceObject;
5373
5374 //
5375 // Construct the IRP stack for the lower level driver.
5376 //
5377
5378 irpStack = IoGetNextIrpStackLocation(irp);
5379 irpStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
5380 irpStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_SCSI_EXECUTE_OUT;
5381 irpStack->Parameters.Scsi.Srb = srb;
5382
5383 IoSetCompletionRoutine(irp,
5384 ToshibaProcessErrorCompletion,
5385 srb,
5386 TRUE,
5387 TRUE,
5388 TRUE);
5389
5390 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
5391 srb->PathId = deviceExtension->PathId;
5392 srb->TargetId = deviceExtension->TargetId;
5393 srb->Lun = deviceExtension->Lun;
5394 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
5395 srb->Cdb[1] |= deviceExtension->Lun << 5;
5396 srb->SrbStatus = srb->ScsiStatus = 0;
5397 srb->NextSrb = 0;
5398 srb->OriginalRequest = irp;
5399 srb->SenseInfoBufferLength = 0;
5400
5401 //
5402 // Set the transfer length.
5403 //
5404
5405 srb->DataTransferLength = length;
5406 srb->SrbFlags = SRB_FLAGS_DATA_OUT | SRB_FLAGS_DISABLE_AUTOSENSE | SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
5407
5408
5409 srb->CdbLength = 6;
5410 cdb->MODE_SELECT.OperationCode = SCSIOP_MODE_SELECT;
5411 cdb->MODE_SELECT.PFBit = 1;
5412 cdb->MODE_SELECT.ParameterListLength = (UCHAR)length;
5413
5414 //
5415 // Copy the Mode page into the databuffer.
5416 //
5417
5418 RtlCopyMemory(srb->DataBuffer, &cdData->u1.Header, length);
5419
5420 //
5421 // Set the density code.
5422 //
5423
5424 ((PERROR_RECOVERY_DATA)srb->DataBuffer)->BlockDescriptor.DensityCode = 0x83;
5425
5426 IoCallDriver(deviceExtension->PortDeviceObject, irp);
5427 }
5428 }
5429
5430 BOOLEAN
5431 NTAPI
5432 CdRomIsPlayActive(
5433 IN PDEVICE_OBJECT DeviceObject
5434 )
5435
5436 /*++
5437
5438 Routine Description:
5439
5440 This routine determines if the cd is currently playing music.
5441
5442 Arguments:
5443
5444 DeviceObject - Device object to test.
5445
5446 Return Value:
5447
5448 TRUE if the device is playing music.
5449
5450 --*/
5451 {
5452 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
5453 PIRP irp;
5454 IO_STATUS_BLOCK ioStatus;
5455 KEVENT event;
5456 NTSTATUS status;
5457 PSUB_Q_CURRENT_POSITION currentBuffer;
5458
5459 if (!PLAY_ACTIVE(deviceExtension)) {
5460 return(FALSE);
5461 }
5462
5463 currentBuffer = ExAllocatePool(NonPagedPoolCacheAligned, sizeof(SUB_Q_CURRENT_POSITION));
5464
5465 if (currentBuffer == NULL) {
5466 return(FALSE);
5467 }
5468
5469 ((PCDROM_SUB_Q_DATA_FORMAT) currentBuffer)->Format = IOCTL_CDROM_CURRENT_POSITION;
5470 ((PCDROM_SUB_Q_DATA_FORMAT) currentBuffer)->Track = 0;
5471
5472 //
5473 // Create notification event object to be used to signal the
5474 // request completion.
5475 //
5476
5477 KeInitializeEvent(&event, NotificationEvent, FALSE);
5478
5479 //
5480 // Build the synchronous request to be sent to the port driver
5481 // to perform the request.
5482 //
5483
5484 irp = IoBuildDeviceIoControlRequest(IOCTL_CDROM_READ_Q_CHANNEL,
5485 deviceExtension->DeviceObject,
5486 currentBuffer,
5487 sizeof(CDROM_SUB_Q_DATA_FORMAT),
5488 currentBuffer,
5489 sizeof(SUB_Q_CURRENT_POSITION),
5490 FALSE,
5491 &event,
5492 &ioStatus);
5493
5494 if (irp == NULL) {
5495 ExFreePool(currentBuffer);
5496 return FALSE;
5497 }
5498
5499 //
5500 // Pass request to port driver and wait for request to complete.
5501 //
5502
5503 status = IoCallDriver(deviceExtension->DeviceObject, irp);
5504
5505 if (status == STATUS_PENDING) {
5506 KeWaitForSingleObject(&event, Suspended, KernelMode, FALSE, NULL);
5507 status = ioStatus.Status;
5508 }
5509
5510 if (!NT_SUCCESS(status)) {
5511 ExFreePool(currentBuffer);
5512 return FALSE;
5513 }
5514
5515 ExFreePool(currentBuffer);
5516
5517 return(PLAY_ACTIVE(deviceExtension));
5518
5519 }
5520
5521 IO_COMPLETION_ROUTINE CdRomMediaChangeCompletion;
5522 NTSTATUS
5523 NTAPI
5524 CdRomMediaChangeCompletion(
5525 PDEVICE_OBJECT DeviceObject,
5526 PIRP Irp,
5527 PVOID Context
5528 )
5529
5530 /*++
5531
5532 Routine Description:
5533
5534 This routine handles the completion of the test unit ready irps
5535 used to determine if the media has changed. If the media has
5536 changed, this code signals the named event to wake up other
5537 system services that react to media change (aka AutoPlay).
5538
5539 Arguments:
5540
5541 DeviceObject - the object for the completion
5542 Irp - the IRP being completed
5543 Context - the SRB from the IRP
5544
5545 Return Value:
5546
5547 NTSTATUS
5548
5549 --*/
5550
5551 {
5552 PSCSI_REQUEST_BLOCK srb = (PSCSI_REQUEST_BLOCK) Context;
5553 PIO_STACK_LOCATION cdStack = IoGetCurrentIrpStackLocation(Irp);
5554 PIO_STACK_LOCATION irpNextStack = IoGetNextIrpStackLocation(Irp);
5555 PDEVICE_EXTENSION deviceExtension;
5556 PDEVICE_EXTENSION physicalExtension;
5557 PSENSE_DATA senseBuffer;
5558 PCDROM_DATA cddata;
5559
5560 ASSERT(Irp);
5561 ASSERT(cdStack);
5562 DeviceObject = cdStack->DeviceObject;
5563 ASSERT(DeviceObject);
5564
5565 deviceExtension = DeviceObject->DeviceExtension;
5566 physicalExtension = deviceExtension->PhysicalDevice->DeviceExtension;
5567 cddata = (PCDROM_DATA)(deviceExtension + 1);
5568
5569 ASSERT(cddata->MediaChangeIrp == NULL);
5570
5571 //
5572 // If the sense data field is valid, look for a media change.
5573 // otherwise this iteration of the polling will just assume nothing
5574 // changed.
5575 //
5576
5577 DebugPrint((3, "CdRomMediaChangeHandler: Completing Autorun Irp 0x%lx "
5578 "for device %d\n",
5579 Irp, deviceExtension->DeviceNumber));
5580
5581 if (srb->SrbStatus & SRB_STATUS_AUTOSENSE_VALID) {
5582 if (srb->SenseInfoBufferLength >= FIELD_OFFSET(SENSE_DATA, CommandSpecificInformation)) {
5583
5584 //
5585 // See if this is a media change.
5586 //
5587
5588 senseBuffer = srb->SenseInfoBuffer;
5589 if ((senseBuffer->SenseKey & 0x0f) == SCSI_SENSE_UNIT_ATTENTION) {
5590 if (senseBuffer->AdditionalSenseCode == SCSI_ADSENSE_MEDIUM_CHANGED) {
5591
5592 DebugPrint((1, "CdRomMediaChangeCompletion: New media inserted "
5593 "into CdRom%d [irp = 0x%lx]\n",
5594 deviceExtension->DeviceNumber, Irp));
5595
5596 //
5597 // Media change event occurred - signal the named event.
5598 //
5599
5600 KeSetEvent(deviceExtension->MediaChangeEvent,
5601 (KPRIORITY) 0,
5602 FALSE);
5603
5604 deviceExtension->MediaChangeNoMedia = FALSE;
5605
5606 }
5607
5608 if (DeviceObject->Vpb->Flags & VPB_MOUNTED) {
5609
5610 //
5611 // Must remember the media changed and force the
5612 // file system to verify on next access
5613 //
5614
5615 DeviceObject->Flags |= DO_VERIFY_VOLUME;
5616 }
5617
5618 physicalExtension->MediaChangeCount++;
5619
5620 } else if(((senseBuffer->SenseKey & 0x0f) == SCSI_SENSE_NOT_READY)&&
5621 (senseBuffer->AdditionalSenseCode == SCSI_ADSENSE_NO_MEDIA_IN_DEVICE)&&
5622 (!deviceExtension->MediaChangeNoMedia)){
5623
5624 //
5625 // If there was no media in the device then signal the waiters if
5626 // we haven't already done so before.
5627 //
5628
5629 DebugPrint((1, "CdRomMediaChangeCompletion: No media in device"
5630 "CdRom%d [irp = 0x%lx]\n",
5631 deviceExtension->DeviceNumber, Irp));
5632
5633 KeSetEvent(deviceExtension->MediaChangeEvent,
5634 (KPRIORITY) 0,
5635 FALSE);
5636
5637 deviceExtension->MediaChangeNoMedia = TRUE;
5638
5639 }
5640 }
5641 } else if((srb->SrbStatus == SRB_STATUS_SUCCESS)&&
5642 (deviceExtension->MediaChangeNoMedia)) {
5643 //
5644 // We didn't have any media before and now the requests are succeeding
5645 // we probably missed the Media change somehow. Signal the change
5646 // anyway
5647 //
5648
5649 DebugPrint((1, "CdRomMediaChangeCompletion: Request completed normally"
5650 "for CdRom%d which was marked w/NoMedia [irp = 0x%lx]\n",
5651 deviceExtension->DeviceNumber, Irp));
5652
5653 KeSetEvent(deviceExtension->MediaChangeEvent,
5654 (KPRIORITY) 0,
5655 FALSE);
5656
5657 deviceExtension->MediaChangeNoMedia = FALSE;
5658
5659 }
5660
5661 if (srb->SrbStatus & SRB_STATUS_QUEUE_FROZEN) {
5662 ScsiClassReleaseQueue(deviceExtension->DeviceObject);
5663 }
5664
5665 //
5666 // Remember the IRP and SRB for use the next time.
5667 //
5668
5669 irpNextStack->Parameters.Scsi.Srb = srb;
5670 cddata->MediaChangeIrp = Irp;
5671
5672 if (deviceExtension->ClassError) {
5673
5674 NTSTATUS status;
5675 BOOLEAN retry;
5676
5677 //
5678 // Throw away the status and retry values. Just give the error routine a chance
5679 // to do what it needs to.
5680 //
5681
5682 deviceExtension->ClassError(DeviceObject,
5683 srb,
5684 &status,
5685 &retry);
5686 }
5687
5688 IoStartNextPacket(DeviceObject, FALSE);
5689
5690 return STATUS_MORE_PROCESSING_REQUIRED;
5691 }
5692
5693 VOID
5694 NTAPI
5695 CdRomTickHandler(
5696 IN PDEVICE_OBJECT DeviceObject,
5697 IN PVOID Context
5698 )
5699
5700 /*++
5701
5702 Routine Description:
5703
5704 This routine handles the once per second timer provided by the
5705 Io subsystem. It is only used when the cdrom device itself is
5706 a candidate for autoplay support. It should never be called if
5707 the cdrom device is a changer device.
5708
5709 Arguments:
5710
5711 DeviceObject - what to check.
5712 Context - not used.
5713
5714 Return Value:
5715
5716 None.
5717
5718 --*/
5719
5720 {
5721 PIRP irp;
5722 PIRP heldIrpList;
5723 PIRP nextIrp;
5724 PLIST_ENTRY listEntry;
5725 PCDROM_DATA cddata;
5726 PIO_STACK_LOCATION irpStack;
5727 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
5728
5729 cddata = (PCDROM_DATA)(deviceExtension + 1);
5730
5731 if (cddata->MediaChange) {
5732 if (cddata->MediaChangeIrp != NULL) {
5733
5734 //
5735 // Media change support is active and the IRP is waiting.
5736 // Decrement the timer.
5737 // There is no MP protection on the timer counter. This
5738 // code is the only code that will manipulate the timer
5739 // and only one instance of it should be running at any
5740 // given time.
5741 //
5742
5743 cddata->MediaChangeCountDown--;
5744
5745 #if DBG
5746 cddata->MediaChangeIrpTimeInUse = 0;
5747 cddata->MediaChangeIrpLost = FALSE;
5748 #endif
5749
5750 if (!cddata->MediaChangeCountDown) {
5751 PSCSI_REQUEST_BLOCK srb;
5752 PIO_STACK_LOCATION irpNextStack;
5753 PCDB cdb;
5754
5755 //
5756 // Reset the timer.
5757 //
5758
5759 cddata->MediaChangeCountDown = MEDIA_CHANGE_DEFAULT_TIME;
5760
5761 //
5762 // Prepare the IRP for the test unit ready
5763 //
5764
5765 irp = cddata->MediaChangeIrp;
5766 cddata->MediaChangeIrp = NULL;
5767
5768 irp->IoStatus.Status = STATUS_SUCCESS;
5769 irp->IoStatus.Information = 0;
5770 irp->Flags = 0;
5771 irp->UserBuffer = NULL;
5772
5773 //
5774 // If the irp is sent down when the volume needs to be
5775 // verified, CdRomUpdateGeometryCompletion won't complete
5776 // it since it's not associated with a thread. Marking
5777 // it to override the verify causes it always be sent
5778 // to the port driver
5779 //
5780
5781 irpStack = IoGetCurrentIrpStackLocation(irp);
5782 irpStack->Flags |= SL_OVERRIDE_VERIFY_VOLUME;
5783
5784 irpNextStack = IoGetNextIrpStackLocation(irp);
5785 irpNextStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
5786 irpNextStack->Parameters.DeviceIoControl.IoControlCode =
5787 IOCTL_SCSI_EXECUTE_NONE;
5788
5789 //
5790 // Prepare the SRB for execution.
5791 //
5792
5793 srb = irpNextStack->Parameters.Scsi.Srb;
5794 srb->SrbStatus = srb->ScsiStatus = 0;
5795 srb->NextSrb = 0;
5796 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
5797 srb->PathId = deviceExtension->PathId;
5798 srb->TargetId = deviceExtension->TargetId;
5799 srb->Lun = deviceExtension->Lun;
5800 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
5801 srb->SrbFlags = SRB_FLAGS_NO_DATA_TRANSFER |
5802 SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
5803 srb->DataTransferLength = 0;
5804 srb->OriginalRequest = irp;
5805
5806 RtlZeroMemory(srb->SenseInfoBuffer, SENSE_BUFFER_SIZE);
5807 srb->SenseInfoBufferLength = SENSE_BUFFER_SIZE;
5808
5809 cdb = (PCDB) &srb->Cdb[0];
5810 cdb->CDB6GENERIC.OperationCode = SCSIOP_TEST_UNIT_READY;
5811 cdb->CDB6GENERIC.LogicalUnitNumber = srb->Lun;
5812
5813 //
5814 // Setup the IRP to perform a test unit ready.
5815 //
5816
5817 IoSetCompletionRoutine(irp,
5818 CdRomMediaChangeCompletion,
5819 srb,
5820 TRUE,
5821 TRUE,
5822 TRUE);
5823
5824 //
5825 // Issue the request.
5826 //
5827
5828 IoStartPacket(DeviceObject, irp, NULL, NULL);
5829 }
5830 } else {
5831
5832 #if DBG
5833 if(cddata->MediaChangeIrpLost == FALSE) {
5834 if(cddata->MediaChangeIrpTimeInUse++ >
5835 MEDIA_CHANGE_TIMEOUT_TIME) {
5836
5837 DebugPrint((0, "CdRom%d: AutoPlay has lost it's irp and "
5838 "doesn't know where to find it. Leave it "
5839 "alone and it'll come home dragging it's "
5840 "stack behind it.\n",
5841 deviceExtension->DeviceNumber));
5842 cddata->MediaChangeIrpLost = TRUE;
5843 }
5844 }
5845
5846 #endif
5847 }
5848 }
5849
5850 //
5851 // Process all generic timer IRPS in the timer list. As IRPs are pulled
5852 // off of the TimerIrpList they must be remembered in the first loop
5853 // if they are not sent to the lower driver. After all items have
5854 // been pulled off the list, it is possible to put the held IRPs back
5855 // into the TimerIrpList.
5856 //
5857
5858 heldIrpList = NULL;
5859 if (IsListEmpty(&cddata->TimerIrpList)) {
5860 listEntry = NULL;
5861 } else {
5862 listEntry = ExInterlockedRemoveHeadList(&cddata->TimerIrpList,
5863 &cddata->TimerIrpSpinLock);
5864 }
5865 while (listEntry) {
5866
5867 //
5868 // There is something in the timer list. Pick up the IRP and
5869 // see if it is ready to be submitted.
5870 //
5871
5872 irp = CONTAINING_RECORD(listEntry, IRP, Tail.Overlay.ListEntry);
5873 irpStack = IoGetCurrentIrpStackLocation(irp);
5874
5875 if (irpStack->Parameters.Others.Argument3) {
5876 ULONG_PTR count;
5877
5878 //
5879 // Decrement the countdown timer and put the IRP back in the list.
5880 //
5881
5882 count = (ULONG_PTR) irpStack->Parameters.Others.Argument3;
5883 count--;
5884 irpStack->Parameters.Others.Argument3 = (PVOID) count;
5885
5886 ASSERT(irp->AssociatedIrp.MasterIrp == NULL);
5887 if (heldIrpList) {
5888 irp->AssociatedIrp.MasterIrp = (PVOID) heldIrpList;
5889 }
5890 heldIrpList = irp;
5891
5892 } else {
5893
5894 //
5895 // Submit this IRP to the lower driver. This IRP does not
5896 // need to be remembered here. It will be handled again when
5897 // it completes.
5898 //
5899
5900 DebugPrint((1, "CdRomTickHandler: Reissuing request %lx (thread = %lx)\n", irp, irp->Tail.Overlay.Thread));
5901
5902 //
5903 // feed this to the appropriate port driver
5904 //
5905
5906 IoCallDriver (deviceExtension->PortDeviceObject, irp);
5907
5908 }
5909
5910 //
5911 // Pick up the next IRP from the timer list.
5912 //
5913
5914 listEntry = ExInterlockedRemoveHeadList(&cddata->TimerIrpList,
5915 &cddata->TimerIrpSpinLock);
5916 }
5917
5918 //
5919 // Move all held IRPs back onto the timer list.
5920 //
5921
5922 while (heldIrpList) {
5923
5924 //
5925 // Save the single list pointer before queueing this IRP.
5926 //
5927
5928 nextIrp = (PIRP) heldIrpList->AssociatedIrp.MasterIrp;
5929 heldIrpList->AssociatedIrp.MasterIrp = NULL;
5930
5931 //
5932 // Return the held IRP to the timer list.
5933 //
5934
5935 ExInterlockedInsertTailList(&cddata->TimerIrpList,
5936 &heldIrpList->Tail.Overlay.ListEntry,
5937 &cddata->TimerIrpSpinLock);
5938
5939 //
5940 // Continue processing the held IRPs
5941 //
5942
5943 heldIrpList = nextIrp;
5944 }
5945 }
5946
5947 BOOLEAN
5948 NTAPI
5949 CdRomCheckRegistryForMediaChangeValue(
5950 IN PUNICODE_STRING RegistryPath,
5951 IN ULONG DeviceNumber
5952 )
5953
5954 /*++
5955
5956 Routine Description:
5957
5958 The user must specify that AutoPlay is to run on the platform
5959 by setting the registry value HKEY_LOCAL_MACHINE\System\CurrentControlSet\
5960 Services\Cdrom\Autorun:REG_DWORD:1.
5961
5962 The user can override the global setting to enable or disable Autorun on a
5963 specific cdrom device by setting the key HKEY_LOCAL_MACHINE\System\
5964 CurrentControlSet\Services\Cdrom\Device<N>\Autorun:REG_DWORD to one or zero.
5965 (CURRENTLY UNIMPLEMENTED)
5966
5967 If this registry value does not exist or contains the value zero then
5968 the timer to check for media change does not run.
5969
5970 Arguments:
5971
5972 RegistryPath - pointer to the unicode string inside
5973 ...\CurrentControlSet\Services\Cdrom
5974 DeviceNumber - The number of the device object
5975
5976 Return Value:
5977
5978 TRUE - Autorun is enabled.
5979 FALSE - no autorun.
5980
5981 --*/
5982
5983 {
5984 #define ITEMS_TO_QUERY 2 /* always 1 greater than what is searched */
5985 PRTL_QUERY_REGISTRY_TABLE parameters = NULL;
5986 NTSTATUS status;
5987 LONG zero = 0;
5988
5989 LONG tmp = 0;
5990 LONG doRun = 0;
5991
5992 CHAR buf[32];
5993 ANSI_STRING paramNum;
5994
5995 UNICODE_STRING paramStr;
5996
5997 UNICODE_STRING paramSuffix;
5998 UNICODE_STRING paramPath;
5999 UNICODE_STRING paramDevPath;
6000
6001 //
6002 // First append \Parameters to the passed in registry path
6003 //
6004
6005 RtlInitUnicodeString(&paramStr, L"\\Parameters");
6006
6007 RtlInitUnicodeString(&paramPath, NULL);
6008
6009 paramPath.MaximumLength = RegistryPath->Length +
6010 paramStr.Length +
6011 sizeof(WCHAR);
6012
6013 paramPath.Buffer = ExAllocatePool(PagedPool, paramPath.MaximumLength);
6014
6015 if(!paramPath.Buffer) {
6016
6017 DebugPrint((1,"CdRomCheckRegAP: couldn't allocate paramPath\n"));
6018
6019 return FALSE;
6020 }
6021
6022 RtlZeroMemory(paramPath.Buffer, paramPath.MaximumLength);
6023 RtlAppendUnicodeToString(&paramPath, RegistryPath->Buffer);
6024 RtlAppendUnicodeToString(&paramPath, paramStr.Buffer);
6025
6026 DebugPrint((2, "CdRomCheckRegAP: paramPath [%d] = %ws\n",
6027 paramPath.Length,
6028 paramPath.Buffer));
6029
6030 //
6031 // build a counted ANSI string that contains
6032 // the suffix for the path
6033 //
6034
6035 sprintf(buf, "\\Device%lu", DeviceNumber);
6036 RtlInitAnsiString(&paramNum, buf);
6037
6038 //
6039 // Next convert this into a unicode string
6040 //
6041
6042 status = RtlAnsiStringToUnicodeString(&paramSuffix, &paramNum, TRUE);
6043
6044 if(!NT_SUCCESS(status)) {
6045 DebugPrint((1,"CdRomCheckRegAP: couldn't convert paramNum to paramSuffix\n"));
6046 ExFreePool(paramPath.Buffer);
6047 return FALSE;
6048 }
6049
6050 RtlInitUnicodeString(&paramDevPath, NULL);
6051
6052 //
6053 // now build the device specific path
6054 //
6055
6056 paramDevPath.MaximumLength = paramPath.Length +
6057 paramSuffix.Length +
6058 sizeof(WCHAR);
6059 paramDevPath.Buffer = ExAllocatePool(PagedPool, paramDevPath.MaximumLength);
6060
6061 if(!paramDevPath.Buffer) {
6062 RtlFreeUnicodeString(&paramSuffix);
6063 ExFreePool(paramPath.Buffer);
6064 return FALSE;
6065 }
6066
6067 RtlZeroMemory(paramDevPath.Buffer, paramDevPath.MaximumLength);
6068 RtlAppendUnicodeToString(&paramDevPath, paramPath.Buffer);
6069 RtlAppendUnicodeToString(&paramDevPath, paramSuffix.Buffer);
6070
6071 DebugPrint((2, "CdRomCheckRegAP: paramDevPath [%d] = %ws\n",
6072 paramPath.Length,
6073 paramPath.Buffer));
6074
6075 parameters = ExAllocatePool(NonPagedPool,
6076 sizeof(RTL_QUERY_REGISTRY_TABLE)*ITEMS_TO_QUERY);
6077
6078 if (parameters) {
6079
6080 //
6081 // Check for the Autorun value.
6082 //
6083
6084 RtlZeroMemory(parameters,
6085 (sizeof(RTL_QUERY_REGISTRY_TABLE)*ITEMS_TO_QUERY));
6086
6087 parameters[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
6088 parameters[0].Name = L"Autorun";
6089 parameters[0].EntryContext = &doRun;
6090 parameters[0].DefaultType = REG_DWORD;
6091 parameters[0].DefaultData = &zero;
6092 parameters[0].DefaultLength = sizeof(ULONG);
6093
6094 status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE | RTL_REGISTRY_OPTIONAL,
6095 RegistryPath->Buffer,
6096 parameters,
6097 NULL,
6098 NULL);
6099
6100 DebugPrint((2, "CdRomCheckRegAP: cdrom/Autorun flag = %d\n", doRun));
6101
6102 RtlZeroMemory(parameters,
6103 (sizeof(RTL_QUERY_REGISTRY_TABLE)*ITEMS_TO_QUERY));
6104
6105 parameters[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
6106 parameters[0].Name = L"Autorun";
6107 parameters[0].EntryContext = &tmp;
6108 parameters[0].DefaultType = REG_DWORD;
6109 parameters[0].DefaultData = &doRun;
6110 parameters[0].DefaultLength = sizeof(ULONG);
6111
6112 status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE | RTL_REGISTRY_OPTIONAL,
6113 paramPath.Buffer,
6114 parameters,
6115 NULL,
6116 NULL);
6117
6118 DebugPrint((2, "CdRomCheckRegAP: cdrom/parameters/autorun flag = %d\n", tmp));
6119
6120 RtlZeroMemory(parameters,
6121 (sizeof(RTL_QUERY_REGISTRY_TABLE) * ITEMS_TO_QUERY));
6122
6123 parameters[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
6124 parameters[0].Name = L"Autorun";
6125 parameters[0].EntryContext = &doRun;
6126 parameters[0].DefaultType = REG_DWORD;
6127 parameters[0].DefaultData = &tmp;
6128 parameters[0].DefaultLength = sizeof(ULONG);
6129
6130 status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE | RTL_REGISTRY_OPTIONAL,
6131 paramDevPath.Buffer,
6132 parameters,
6133 NULL,
6134 NULL);
6135
6136 DebugPrint((1, "CdRomCheckRegAP: cdrom/parameters/device%d/autorun flag = %d\n", DeviceNumber, doRun));
6137
6138 ExFreePool(parameters);
6139
6140 }
6141
6142 ExFreePool(paramPath.Buffer);
6143 ExFreePool(paramDevPath.Buffer);
6144 RtlFreeUnicodeString(&paramSuffix);
6145
6146 DebugPrint((1, "CdRomCheckRegAP: Autoplay for device %d is %s\n",
6147 DeviceNumber,
6148 (doRun ? "on" : "off")));
6149
6150 if(doRun) {
6151 return TRUE;
6152 }
6153
6154 return FALSE;
6155 }
6156
6157
6158 BOOLEAN
6159 NTAPI
6160 IsThisASanyo(
6161 IN PDEVICE_OBJECT DeviceObject,
6162 IN UCHAR PathId,
6163 IN UCHAR TargetId
6164 )
6165
6166 /*++
6167
6168 Routine Description:
6169
6170 This routine is called by DriverEntry to determine whether a Sanyo 3-CD
6171 changer device is present.
6172
6173 Arguments:
6174
6175 DeviceObject - Supplies the device object for the 'real' device.
6176
6177 PathId -
6178
6179 Return Value:
6180
6181 TRUE - if an Atapi changer device is found.
6182
6183 --*/
6184
6185 {
6186 KEVENT event;
6187 PIRP irp;
6188 PCHAR inquiryBuffer;
6189 IO_STATUS_BLOCK ioStatus;
6190 NTSTATUS status;
6191 PSCSI_ADAPTER_BUS_INFO adapterInfo;
6192 ULONG scsiBus;
6193 PINQUIRYDATA inquiryData;
6194 PSCSI_INQUIRY_DATA lunInfo;
6195
6196 inquiryBuffer = ExAllocatePool(NonPagedPool, 2048);
6197 KeInitializeEvent(&event, NotificationEvent, FALSE);
6198 irp = IoBuildDeviceIoControlRequest(IOCTL_SCSI_GET_INQUIRY_DATA,
6199 DeviceObject,
6200 NULL,
6201 0,
6202 inquiryBuffer,
6203 2048,
6204 FALSE,
6205 &event,
6206 &ioStatus);
6207 if (!irp) {
6208 return FALSE;
6209 }
6210
6211 status = IoCallDriver(DeviceObject, irp);
6212
6213 if (status == STATUS_PENDING) {
6214 KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
6215 status = ioStatus.Status;
6216 }
6217
6218 if (!NT_SUCCESS(status)) {
6219 return FALSE;
6220 }
6221
6222 adapterInfo = (PVOID) inquiryBuffer;
6223
6224 for (scsiBus=0; scsiBus < (ULONG)adapterInfo->NumberOfBuses; scsiBus++) {
6225
6226 //
6227 // Get the SCSI bus scan data for this bus.
6228 //
6229
6230 lunInfo = (PVOID) (inquiryBuffer + adapterInfo->BusData[scsiBus].InquiryDataOffset);
6231
6232 for (;;) {
6233
6234 if (lunInfo->PathId == PathId && lunInfo->TargetId == TargetId) {
6235
6236 inquiryData = (PVOID) lunInfo->InquiryData;
6237
6238 if (RtlCompareMemory(inquiryData->VendorId, "TORiSAN CD-ROM CDR-C", 20) == 20) {
6239 ExFreePool(inquiryBuffer);
6240 return TRUE;
6241 }
6242
6243 ExFreePool(inquiryBuffer);
6244 return FALSE;
6245 }
6246
6247 if (!lunInfo->NextInquiryDataOffset) {
6248 break;
6249 }
6250
6251 lunInfo = (PVOID) (inquiryBuffer + lunInfo->NextInquiryDataOffset);
6252 }
6253 }
6254
6255 ExFreePool(inquiryBuffer);
6256 return FALSE;
6257 }
6258
6259 BOOLEAN
6260 NTAPI
6261 IsThisAnAtapiChanger(
6262 IN PDEVICE_OBJECT DeviceObject,
6263 OUT PULONG DiscsPresent
6264 )
6265
6266 /*++
6267
6268 Routine Description:
6269
6270 This routine is called by DriverEntry to determine whether an Atapi
6271 changer device is present.
6272
6273 Arguments:
6274
6275 DeviceObject - Supplies the device object for the 'real' device.
6276
6277 DiscsPresent - Supplies a pointer to the number of Discs supported by the changer.
6278
6279 Return Value:
6280
6281 TRUE - if an Atapi changer device is found.
6282
6283 --*/
6284
6285 {
6286 PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
6287 PMECHANICAL_STATUS_INFORMATION_HEADER mechanicalStatusBuffer;
6288 NTSTATUS status;
6289 SCSI_REQUEST_BLOCK srb;
6290 PCDB cdb = (PCDB) &srb.Cdb[0];
6291 BOOLEAN retVal = FALSE;
6292
6293 *DiscsPresent = 0;
6294
6295 //
6296 // Some devices can't handle 12 byte CDB's gracefully
6297 //
6298
6299 if(deviceExtension->DeviceFlags & DEV_NO_12BYTE_CDB) {
6300
6301 return FALSE;
6302
6303 }
6304
6305 //
6306 // Build and issue the mechanical status command.
6307 //
6308
6309 mechanicalStatusBuffer = ExAllocatePool(NonPagedPoolCacheAligned,
6310 sizeof(MECHANICAL_STATUS_INFORMATION_HEADER));
6311
6312 if (!mechanicalStatusBuffer) {
6313 retVal = FALSE;
6314 } else {
6315
6316 //
6317 // Build and send the Mechanism status CDB.
6318 //
6319
6320 RtlZeroMemory(&srb, sizeof(srb));
6321
6322 srb.CdbLength = 12;
6323 srb.TimeOutValue = 20;
6324
6325 cdb->MECH_STATUS.OperationCode = SCSIOP_MECHANISM_STATUS;
6326 cdb->MECH_STATUS.AllocationLength[1] = sizeof(MECHANICAL_STATUS_INFORMATION_HEADER);
6327
6328 status = ScsiClassSendSrbSynchronous(DeviceObject,
6329 &srb,
6330 mechanicalStatusBuffer,
6331 sizeof(MECHANICAL_STATUS_INFORMATION_HEADER),
6332 FALSE);
6333
6334
6335 if (status == STATUS_SUCCESS) {
6336
6337 //
6338 // Indicate number of slots available
6339 //
6340
6341 *DiscsPresent = mechanicalStatusBuffer->NumberAvailableSlots;
6342 if (*DiscsPresent > 1) {
6343 retVal = TRUE;
6344 } else {
6345
6346 //
6347 // If only one disc, no need for this driver.
6348 //
6349
6350 retVal = FALSE;
6351 }
6352 } else {
6353
6354 //
6355 // Device doesn't support this command.
6356 //
6357
6358 retVal = FALSE;
6359 }
6360
6361 ExFreePool(mechanicalStatusBuffer);
6362 }
6363
6364 return retVal;
6365 }
6366
6367 BOOLEAN
6368 NTAPI
6369 IsThisAMultiLunDevice(
6370 IN PDEVICE_OBJECT DeviceObject,
6371 IN PDEVICE_OBJECT PortDeviceObject
6372 )
6373 /*++
6374
6375 Routine Description:
6376
6377 This routine is called to determine whether a multi-lun
6378 device is present.
6379
6380 Arguments:
6381
6382 DeviceObject - Supplies the device object for the 'real' device.
6383
6384 Return Value:
6385
6386 TRUE - if a Multi-lun device is found.
6387
6388 --*/
6389 {
6390 PCHAR buffer;
6391 PSCSI_INQUIRY_DATA lunInfo;
6392 PSCSI_ADAPTER_BUS_INFO adapterInfo;
6393 PDEVICE_EXTENSION deviceExtension = (PDEVICE_EXTENSION) DeviceObject->DeviceExtension;
6394 PINQUIRYDATA inquiryData;
6395 ULONG scsiBus;
6396 NTSTATUS status;
6397 UCHAR lunCount = 0;
6398
6399 status = ScsiClassGetInquiryData(PortDeviceObject, (PSCSI_ADAPTER_BUS_INFO *) &buffer);
6400
6401 if (!NT_SUCCESS(status)) {
6402 DebugPrint((1,"IsThisAMultiLunDevice: ScsiClassGetInquiryData failed\n"));
6403 return FALSE;
6404 }
6405
6406 adapterInfo = (PVOID) buffer;
6407
6408 //
6409 // For each SCSI bus this adapter supports ...
6410 //
6411
6412 for (scsiBus=0; scsiBus < adapterInfo->NumberOfBuses; scsiBus++) {
6413
6414 //
6415 // Get the SCSI bus scan data for this bus.
6416 //
6417
6418 lunInfo = (PVOID) (buffer + adapterInfo->BusData[scsiBus].InquiryDataOffset);
6419
6420 while (adapterInfo->BusData[scsiBus].InquiryDataOffset) {
6421
6422 inquiryData = (PVOID)lunInfo->InquiryData;
6423
6424 if ((lunInfo->PathId == deviceExtension->PathId) &&
6425 (lunInfo->TargetId == deviceExtension->TargetId) &&
6426 (inquiryData->DeviceType == READ_ONLY_DIRECT_ACCESS_DEVICE)) {
6427
6428 DebugPrint((1,"IsThisAMultiLunDevice: Vendor string is %.24s\n",
6429 inquiryData->VendorId));
6430
6431 //
6432 // If this device has more than one cdrom-type lun then we
6433 // won't support autoplay on it
6434 //
6435
6436 if (lunCount++) {
6437 ExFreePool(buffer);
6438 return TRUE;
6439 }
6440 }
6441
6442 //
6443 // Get next LunInfo.
6444 //
6445
6446 if (lunInfo->NextInquiryDataOffset == 0) {
6447 break;
6448 }
6449
6450 lunInfo = (PVOID) (buffer + lunInfo->NextInquiryDataOffset);
6451 }
6452 }
6453
6454 ExFreePool(buffer);
6455 return FALSE;
6456
6457 }
6458
6459 IO_COMPLETION_ROUTINE CdRomUpdateGeometryCompletion;
6460 NTSTATUS
6461 NTAPI
6462 CdRomUpdateGeometryCompletion(
6463 PDEVICE_OBJECT DeviceObject,
6464 PIRP Irp,
6465 PVOID Context
6466 )
6467
6468 /*++
6469
6470 Routine Description:
6471
6472 This routine andles the completion of the test unit ready irps
6473 used to determine if the media has changed. If the media has
6474 changed, this code signals the named event to wake up other
6475 system services that react to media change (aka AutoPlay).
6476
6477 Arguments:
6478
6479 DeviceObject - the object for the completion
6480 Irp - the IRP being completed
6481 Context - the SRB from the IRP
6482
6483 Return Value:
6484
6485 NTSTATUS
6486
6487 --*/
6488
6489 {
6490 PSCSI_REQUEST_BLOCK srb = (PSCSI_REQUEST_BLOCK) Context;
6491 PREAD_CAPACITY_DATA readCapacityBuffer;
6492 PDEVICE_EXTENSION deviceExtension;
6493 PIO_STACK_LOCATION irpStack;
6494 NTSTATUS status;
6495 BOOLEAN retry;
6496 ULONG_PTR retryCount;
6497 ULONG lastSector;
6498 PIRP originalIrp;
6499 PCDROM_DATA cddata;
6500
6501 //
6502 // Get items saved in the private IRP stack location.
6503 //
6504
6505 irpStack = IoGetCurrentIrpStackLocation(Irp);
6506 retryCount = (ULONG_PTR) irpStack->Parameters.Others.Argument1;
6507 originalIrp = (PIRP) irpStack->Parameters.Others.Argument2;
6508
6509 if (!DeviceObject) {
6510 DeviceObject = irpStack->DeviceObject;
6511 }
6512 ASSERT(DeviceObject);
6513
6514 deviceExtension = DeviceObject->DeviceExtension;
6515 cddata = (PCDROM_DATA) (deviceExtension + 1);
6516 readCapacityBuffer = srb->DataBuffer;
6517
6518 if ((NT_SUCCESS(Irp->IoStatus.Status)) && (SRB_STATUS(srb->SrbStatus) == SRB_STATUS_SUCCESS)) {
6519 PFOUR_BYTE from;
6520 PFOUR_BYTE to;
6521
6522 DebugPrint((2, "CdRomUpdateCapacityCompletion: [%lx] successful completion of buddy-irp %lx\n", originalIrp, Irp));
6523 //
6524 // Copy sector size from read capacity buffer to device extension
6525 // in reverse byte order.
6526 //
6527
6528 from = (PFOUR_BYTE) &readCapacityBuffer->BytesPerBlock;
6529 to = (PFOUR_BYTE) &deviceExtension->DiskGeometry->Geometry.BytesPerSector;
6530 to->Byte0 = from->Byte3;
6531 to->Byte1 = from->Byte2;
6532 to->Byte2 = from->Byte1;
6533 to->Byte3 = from->Byte0;
6534
6535 //
6536 // Using the new BytesPerBlock, calculate and store the SectorShift.
6537 //
6538
6539 WHICH_BIT(deviceExtension->DiskGeometry->Geometry.BytesPerSector, deviceExtension->SectorShift);
6540
6541 //
6542 // Copy last sector in reverse byte order.
6543 //
6544
6545 from = (PFOUR_BYTE) &readCapacityBuffer->LogicalBlockAddress;
6546 to = (PFOUR_BYTE) &lastSector;
6547 to->Byte0 = from->Byte3;
6548 to->Byte1 = from->Byte2;
6549 to->Byte2 = from->Byte1;
6550 to->Byte3 = from->Byte0;
6551 deviceExtension->PartitionLength.QuadPart = (LONGLONG)(lastSector + 1);
6552
6553 //
6554 // Calculate number of cylinders.
6555 //
6556
6557 deviceExtension->DiskGeometry->Geometry.Cylinders.QuadPart = (LONGLONG)((lastSector + 1)/(32 * 64));
6558 deviceExtension->PartitionLength.QuadPart =
6559 (deviceExtension->PartitionLength.QuadPart << deviceExtension->SectorShift);
6560 deviceExtension->DiskGeometry->Geometry.MediaType = RemovableMedia;
6561
6562 //
6563 // Assume sectors per track are 32;
6564 //
6565
6566 deviceExtension->DiskGeometry->Geometry.SectorsPerTrack = 32;
6567
6568 //
6569 // Assume tracks per cylinder (number of heads) is 64.
6570 //
6571
6572 deviceExtension->DiskGeometry->Geometry.TracksPerCylinder = 64;
6573
6574 } else {
6575
6576 DebugPrint((1, "CdRomUpdateCapacityCompletion: [%lx] unsuccessful completion of buddy-irp %lx (status - %lx)\n", originalIrp, Irp, Irp->IoStatus.Status));
6577
6578 if (srb->SrbStatus & SRB_STATUS_QUEUE_FROZEN) {
6579 ScsiClassReleaseQueue(DeviceObject);
6580 }
6581
6582 retry = ScsiClassInterpretSenseInfo(DeviceObject,
6583 srb,
6584 IRP_MJ_SCSI,
6585 0,
6586 retryCount,
6587 &status);
6588 if (retry) {
6589 retryCount--;
6590 if (retryCount) {
6591 PCDB cdb;
6592
6593 DebugPrint((1, "CdRomUpdateCapacityCompletion: [%lx] Retrying request %lx .. thread is %lx\n", originalIrp, Irp, Irp->Tail.Overlay.Thread));
6594 //
6595 // set up a one shot timer to get this process started over
6596 //
6597
6598 irpStack->Parameters.Others.Argument1 = (PVOID) retryCount;
6599 irpStack->Parameters.Others.Argument2 = (PVOID) originalIrp;
6600 irpStack->Parameters.Others.Argument3 = (PVOID) 2;
6601
6602 //
6603 // Setup the IRP to be submitted again in the timer routine.
6604 //
6605
6606 irpStack = IoGetNextIrpStackLocation(Irp);
6607 irpStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
6608 irpStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_SCSI_EXECUTE_IN;
6609 irpStack->Parameters.Scsi.Srb = srb;
6610 IoSetCompletionRoutine(Irp,
6611 CdRomUpdateGeometryCompletion,
6612 srb,
6613 TRUE,
6614 TRUE,
6615 TRUE);
6616
6617 //
6618 // Set up the SRB for read capacity.
6619 //
6620
6621 srb->CdbLength = 10;
6622 srb->TimeOutValue = deviceExtension->TimeOutValue;
6623 srb->SrbStatus = srb->ScsiStatus = 0;
6624 srb->NextSrb = 0;
6625 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
6626 srb->PathId = deviceExtension->PathId;
6627 srb->TargetId = deviceExtension->TargetId;
6628 srb->Lun = deviceExtension->Lun;
6629 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
6630 srb->SrbFlags = SRB_FLAGS_DATA_IN | SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
6631 srb->DataTransferLength = sizeof(READ_CAPACITY_DATA);
6632
6633 //
6634 // Set up the CDB
6635 //
6636
6637 cdb = (PCDB) &srb->Cdb[0];
6638 cdb->CDB10.OperationCode = SCSIOP_READ_CAPACITY;
6639 cdb->CDB10.LogicalUnitNumber = deviceExtension->Lun;
6640
6641 //
6642 // Requests queued onto this list will be sent to the
6643 // lower level driver during CdRomTickHandler
6644 //
6645
6646 ExInterlockedInsertHeadList(&cddata->TimerIrpList,
6647 &Irp->Tail.Overlay.ListEntry,
6648 &cddata->TimerIrpSpinLock);
6649
6650 return STATUS_MORE_PROCESSING_REQUIRED;
6651 } else {
6652
6653 //
6654 // This has been bounced for a number of times. Error the
6655 // original request.
6656 //
6657
6658 originalIrp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
6659 RtlZeroMemory(deviceExtension->DiskGeometry, sizeof(DISK_GEOMETRY_EX));
6660 deviceExtension->DiskGeometry->Geometry.BytesPerSector = 2048;
6661 deviceExtension->SectorShift = 11;
6662 deviceExtension->PartitionLength.QuadPart = (LONGLONG)(0x7fffffff);
6663 deviceExtension->DiskGeometry->Geometry.MediaType = RemovableMedia;
6664 }
6665 } else {
6666
6667 //
6668 // Set up reasonable defaults
6669 //
6670
6671 RtlZeroMemory(deviceExtension->DiskGeometry, sizeof(DISK_GEOMETRY_EX));
6672 deviceExtension->DiskGeometry->Geometry.BytesPerSector = 2048;
6673 deviceExtension->SectorShift = 11;
6674 deviceExtension->PartitionLength.QuadPart = (LONGLONG)(0x7fffffff);
6675 deviceExtension->DiskGeometry->Geometry.MediaType = RemovableMedia;
6676 }
6677 }
6678
6679 //
6680 // Free resources held.
6681 //
6682
6683 ExFreePool(srb->SenseInfoBuffer);
6684 ExFreePool(srb->DataBuffer);
6685 ExFreePool(srb);
6686 if (Irp->MdlAddress) {
6687 IoFreeMdl(Irp->MdlAddress);
6688 }
6689 IoFreeIrp(Irp);
6690 if (originalIrp->Tail.Overlay.Thread) {
6691
6692 DebugPrint((2, "CdRomUpdateCapacityCompletion: [%lx] completing original IRP\n", originalIrp));
6693 IoCompleteRequest(originalIrp, IO_DISK_INCREMENT);
6694
6695 } else {
6696 DebugPrint((1, "CdRomUpdateCapacityCompletion: [%lx] original irp has "
6697 "no thread\n",
6698 originalIrp
6699 ));
6700 }
6701
6702 //
6703 // It's now safe to either start the next request or let the waiting ioctl
6704 // request continue along it's merry way
6705 //
6706
6707 IoStartNextPacket(DeviceObject, FALSE);
6708
6709 return STATUS_MORE_PROCESSING_REQUIRED;
6710 }
6711
6712 NTSTATUS
6713 NTAPI
6714 CdRomUpdateCapacity(
6715 IN PDEVICE_EXTENSION DeviceExtension,
6716 IN PIRP IrpToComplete,
6717 IN OPTIONAL PKEVENT IoctlEvent
6718 )
6719
6720 /*++
6721
6722 Routine Description:
6723
6724 This routine updates the capacity of the disk as recorded in the device extension.
6725 It also completes the IRP given with STATUS_VERIFY_REQUIRED. This routine is called
6726 when a media change has occurred and it is necessary to determine the capacity of the
6727 new media prior to the next access.
6728
6729 Arguments:
6730
6731 DeviceExtension - the device to update
6732 IrpToComplete - the request that needs to be completed when done.
6733
6734 Return Value:
6735
6736 NTSTATUS
6737
6738 --*/
6739
6740 {
6741 PCDB cdb;
6742 PIRP irp;
6743 PSCSI_REQUEST_BLOCK srb;
6744 PREAD_CAPACITY_DATA capacityBuffer;
6745 PIO_STACK_LOCATION irpStack;
6746 PUCHAR senseBuffer;
6747
6748 irp = IoAllocateIrp((CCHAR)(DeviceExtension->DeviceObject->StackSize+1),
6749 FALSE);
6750
6751 if (irp) {
6752
6753 srb = ExAllocatePool(NonPagedPool, sizeof(SCSI_REQUEST_BLOCK));
6754 if (srb) {
6755 capacityBuffer = ExAllocatePool(NonPagedPoolCacheAligned,
6756 sizeof(READ_CAPACITY_DATA));
6757
6758 if (capacityBuffer) {
6759
6760
6761 senseBuffer = ExAllocatePool(NonPagedPoolCacheAligned, SENSE_BUFFER_SIZE);
6762
6763 if (senseBuffer) {
6764
6765 irp->MdlAddress = IoAllocateMdl(capacityBuffer,
6766 sizeof(READ_CAPACITY_DATA),
6767 FALSE,
6768 FALSE,
6769 (PIRP) NULL);
6770
6771 if (irp->MdlAddress) {
6772
6773 //
6774 // Have all resources. Set up the IRP to send for the capacity.
6775 //
6776
6777 IoSetNextIrpStackLocation(irp);
6778 irp->IoStatus.Status = STATUS_SUCCESS;
6779 irp->IoStatus.Information = 0;
6780 irp->Flags = 0;
6781 irp->UserBuffer = NULL;
6782
6783 //
6784 // Save the device object and retry count in a private stack location.
6785 //
6786
6787 irpStack = IoGetCurrentIrpStackLocation(irp);
6788 irpStack->DeviceObject = DeviceExtension->DeviceObject;
6789 irpStack->Parameters.Others.Argument1 = (PVOID) MAXIMUM_RETRIES;
6790 irpStack->Parameters.Others.Argument2 = (PVOID) IrpToComplete;
6791
6792 //
6793 // Construct the IRP stack for the lower level driver.
6794 //
6795
6796 irpStack = IoGetNextIrpStackLocation(irp);
6797 irpStack->MajorFunction = IRP_MJ_INTERNAL_DEVICE_CONTROL;
6798 irpStack->Parameters.DeviceIoControl.IoControlCode = IOCTL_SCSI_EXECUTE_IN;
6799 irpStack->Parameters.Scsi.Srb = srb;
6800 IoSetCompletionRoutine(irp,
6801 CdRomUpdateGeometryCompletion,
6802 srb,
6803 TRUE,
6804 TRUE,
6805 TRUE);
6806 //
6807 // Prepare the MDL
6808 //
6809
6810 MmBuildMdlForNonPagedPool(irp->MdlAddress);
6811
6812
6813 //
6814 // Set up the SRB for read capacity.
6815 //
6816
6817 RtlZeroMemory(srb, sizeof(SCSI_REQUEST_BLOCK));
6818 RtlZeroMemory(senseBuffer, SENSE_BUFFER_SIZE);
6819 srb->CdbLength = 10;
6820 srb->TimeOutValue = DeviceExtension->TimeOutValue;
6821 srb->SrbStatus = srb->ScsiStatus = 0;
6822 srb->NextSrb = 0;
6823 srb->Length = SCSI_REQUEST_BLOCK_SIZE;
6824 srb->PathId = DeviceExtension->PathId;
6825 srb->TargetId = DeviceExtension->TargetId;
6826 srb->Lun = DeviceExtension->Lun;
6827 srb->Function = SRB_FUNCTION_EXECUTE_SCSI;
6828 srb->SrbFlags = SRB_FLAGS_DATA_IN | SRB_FLAGS_DISABLE_SYNCH_TRANSFER;
6829 srb->DataBuffer = capacityBuffer;
6830 srb->DataTransferLength = sizeof(READ_CAPACITY_DATA);
6831 srb->OriginalRequest = irp;
6832 srb->SenseInfoBuffer = senseBuffer;
6833 srb->SenseInfoBufferLength = SENSE_BUFFER_SIZE;
6834
6835 //
6836 // Set up the CDB
6837 //
6838
6839 cdb = (PCDB) &srb->Cdb[0];
6840 cdb->CDB10.OperationCode = SCSIOP_READ_CAPACITY;
6841 cdb->CDB10.LogicalUnitNumber = DeviceExtension->Lun;
6842
6843 //
6844 // Set the return value in the IRP that will be completed
6845 // upon completion of the read capacity.
6846 //
6847
6848 IrpToComplete->IoStatus.Status = STATUS_VERIFY_REQUIRED;
6849 IoMarkIrpPending(IrpToComplete);
6850
6851 IoCallDriver(DeviceExtension->PortDeviceObject, irp);
6852
6853 //
6854 // status is not checked because the completion routine for this
6855 // IRP will always get called and it will free the resources.
6856 //
6857
6858 return STATUS_PENDING;
6859
6860 } else {
6861 ExFreePool(senseBuffer);
6862 ExFreePool(capacityBuffer);
6863 ExFreePool(srb);
6864 IoFreeIrp(irp);
6865 }
6866 } else {
6867 ExFreePool(capacityBuffer);
6868 ExFreePool(srb);
6869 IoFreeIrp(irp);
6870 }
6871 } else {
6872 ExFreePool(srb);
6873 IoFreeIrp(irp);
6874 }
6875 } else {
6876 IoFreeIrp(irp);
6877 }
6878 }
6879
6880 return STATUS_INSUFFICIENT_RESOURCES;
6881 }
6882
6883 NTSTATUS
6884 NTAPI
6885 CdRomClassIoctlCompletion(
6886 IN PDEVICE_OBJECT DeviceObject,
6887 IN PIRP Irp,
6888 IN PVOID Context
6889 )
6890
6891 /*++
6892
6893 Routine Description:
6894
6895 This routine signals the event used by CdRomDeviceControl to synchronize
6896 class driver (and lower level driver) ioctls with cdrom's startio routine.
6897 The irp completion is short-circuited so that CdRomDeviceControl can
6898 reissue it once it wakes up.
6899
6900 Arguments:
6901
6902 DeviceObject - the device object
6903 Irp - the request we are synchronizing
6904 Context - a PKEVENT that we need to signal
6905
6906 Return Value:
6907
6908 NTSTATUS
6909
6910 --*/
6911
6912 {
6913 PKEVENT syncEvent = (PKEVENT) Context;
6914
6915 DebugPrint((2, "CdRomClassIoctlCompletion: setting event for irp %#08lx\n",
6916 Irp
6917 ));
6918
6919 KeSetEvent(syncEvent, IO_DISK_INCREMENT, FALSE);
6920
6921 return STATUS_MORE_PROCESSING_REQUIRED;
6922 }
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