VSCSILunMmc.cpp@ 65620

Last change on this file since 65620 was 65111, checked in by vboxsync, 8 years ago
Storage/Devices/VSCSI: Make use of the new SCSI inline helpers and remove the the local inlines
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 51.7 KB

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1	/* $Id: VSCSILunMmc.cpp 65111 2017-01-04 14:07:58Z vboxsync $ */
2	/** @file
3	* Virtual SCSI driver: MMC LUN implementation (CD/DVD-ROM)
4	*/
5
6	/*
7	* Copyright (C) 2006-2016 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*********************************************************************************************************************************
20	* Header Files *
21	*********************************************************************************************************************************/
22	#define LOG_GROUP LOG_GROUP_VSCSI
23	#include <VBox/log.h>
24	#include <VBox/err.h>
25	#include <VBox/types.h>
26	#include <VBox/vscsi.h>
27	#include <iprt/asm.h>
28	#include <iprt/assert.h>
29	#include <iprt/mem.h>
30	#include <iprt/string.h>
31
32	#include "VSCSIInternal.h"
33
34	/**
35	* Different event status types.
36	*/
37	typedef enum MMCEVENTSTATUSTYPE
38	{
39	/** Medium event status not changed. */
40	MMCEVENTSTATUSTYPE_UNCHANGED = 0,
41	/** New medium inserted. */
42	MMCEVENTSTATUSTYPE_MEDIA_NEW,
43	/** Medium removed. */
44	MMCEVENTSTATUSTYPE_MEDIA_REMOVED,
45	/** Medium was removed + new medium was inserted. */
46	MMCEVENTSTATUSTYPE_MEDIA_CHANGED,
47	/** Medium eject requested (eject button pressed). */
48	MMCEVENTSTATUSTYPE_MEDIA_EJECT_REQUESTED,
49	/** 32bit hack. */
50	MMCEVENTSTATUSTYPE_32BIT_HACK = 0x7fffffff
51	} MMCEVENTSTATUSTYPE;
52
53	/** @name Media track types.
54	* @{ */
55	/** Unknown media type. */
56	#define MMC_MEDIA_TYPE_UNKNOWN 0
57	/** Door closed, no media. */
58	#define MMC_MEDIA_TYPE_NO_DISC 0x70
59	/** @} */
60
61
62	/**
63	* MMC LUN instance
64	*/
65	typedef struct VSCSILUNMMC
66	{
67	/** Core LUN structure */
68	VSCSILUNINT Core;
69	/** Size of the virtual disk. */
70	uint64_t cSectors;
71	/** Sector size. */
72	uint32_t cbSector;
73	/** Medium locked indicator. */
74	bool fLocked;
75	/** Media event status. */
76	volatile MMCEVENTSTATUSTYPE MediaEventStatus;
77	/** Media track type. */
78	volatile uint32_t u32MediaTrackType;
79	} VSCSILUNMMC, *PVSCSILUNMMC;
80
81
82	/* Fabricate normal TOC information. */
83	static int mmcReadTOCNormal(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer, bool fMSF)
84	{
85	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
86	uint8_t aReply[32];
87	uint8_t *pbBuf = aReply;
88	uint8_t *q;
89	uint8_t iStartTrack;
90	uint32_t cbSize;
91
92	iStartTrack = pVScsiReq->pbCDB[6];
93	if (iStartTrack > 1 && iStartTrack != 0xaa)
94	{
95	return vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
96	}
97	q = pbBuf + 2;
98	q++ = 1; / first session */
99	q++ = 1; / last session */
100	if (iStartTrack <= 1)
101	{
102	q++ = 0; / reserved */
103	q++ = 0x14; / ADR, CONTROL */
104	q++ = 1; / track number */
105	q++ = 0; / reserved */
106	if (fMSF)
107	{
108	q++ = 0; / reserved */
109	scsiLBA2MSF(q, 0);
110	q += 3;
111	}
112	else
113	{
114	/* sector 0 */
115	scsiH2BE_U32(q, 0);
116	q += 4;
117	}
118	}
119	/* lead out track */
120	q++ = 0; / reserved */
121	q++ = 0x14; / ADR, CONTROL */
122	q++ = 0xaa; / track number */
123	q++ = 0; / reserved */
124	if (fMSF)
125	{
126	q++ = 0; / reserved */
127	scsiLBA2MSF(q, pVScsiLunMmc->cSectors);
128	q += 3;
129	}
130	else
131	{
132	scsiH2BE_U32(q, pVScsiLunMmc->cSectors);
133	q += 4;
134	}
135	cbSize = q - pbBuf;
136	Assert(cbSize <= sizeof(aReply));
137	scsiH2BE_U16(pbBuf, cbSize - 2);
138	if (cbSize < cbMaxTransfer)
139	cbMaxTransfer = cbSize;
140
141	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, cbMaxTransfer);
142
143	return vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
144	}
145
146	/* Fabricate session information. */
147	static int mmcReadTOCMulti(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer, bool fMSF)
148	{
149	RT_NOREF1(cbMaxTransfer);
150	uint8_t aReply[32];
151	uint8_t *pbBuf = aReply;
152
153	/* multi session: only a single session defined */
154	memset(pbBuf, 0, 12);
155	pbBuf[1] = 0x0a;
156	pbBuf[2] = 0x01; /* first complete session number */
157	pbBuf[3] = 0x01; /* last complete session number */
158	pbBuf[5] = 0x14; /* ADR, CONTROL */
159	pbBuf[6] = 1; /* first track in last complete session */
160
161	if (fMSF)
162	{
163	pbBuf[8] = 0; /* reserved */
164	scsiLBA2MSF(pbBuf + 8, 0);
165	}
166	else
167	{
168	/* sector 0 */
169	scsiH2BE_U32(pbBuf + 8, 0);
170	}
171
172	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, 12);
173
174	return vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
175	}
176
177	/**
178	* Create raw TOC data information.
179	*
180	* @returns SCSI status code.
181	* @param pVScsiLun The LUN instance.
182	* @param pVScsiReq The VSCSI request.
183	* @param cbMaxTransfer The maximum transfer size.
184	* @param fMSF Flag whether to use MSF format to encode sector numbers.
185	*/
186	static int mmcReadTOCRaw(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer, bool fMSF)
187	{
188	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
189	uint8_t aReply[50]; /* Counted a maximum of 45 bytes but better be on the safe side. */
190	uint32_t cbSize;
191	uint8_t *pbBuf = &aReply[0] + 2;
192
193	pbBuf++ = 1; / first session */
194	pbBuf++ = 1; / last session */
195
196	pbBuf++ = 1; / session number */
197	pbBuf++ = 0x14; / data track */
198	pbBuf++ = 0; / track number */
199	pbBuf++ = 0xa0; / first track in program area */
200	pbBuf++ = 0; / min */
201	pbBuf++ = 0; / sec */
202	pbBuf++ = 0; / frame */
203	*pbBuf++ = 0;
204	pbBuf++ = 1; / first track */
205	pbBuf++ = 0x00; / disk type CD-DA or CD data */
206	*pbBuf++ = 0;
207
208	pbBuf++ = 1; / session number */
209	pbBuf++ = 0x14; / data track */
210	pbBuf++ = 0; / track number */
211	pbBuf++ = 0xa1; / last track in program area */
212	pbBuf++ = 0; / min */
213	pbBuf++ = 0; / sec */
214	pbBuf++ = 0; / frame */
215	*pbBuf++ = 0;
216	pbBuf++ = 1; / last track */
217	*pbBuf++ = 0;
218	*pbBuf++ = 0;
219
220	pbBuf++ = 1; / session number */
221	pbBuf++ = 0x14; / data track */
222	pbBuf++ = 0; / track number */
223	pbBuf++ = 0xa2; / lead-out */
224	pbBuf++ = 0; / min */
225	pbBuf++ = 0; / sec */
226	pbBuf++ = 0; / frame */
227	if (fMSF)
228	{
229	pbBuf++ = 0; / reserved */
230	scsiLBA2MSF(pbBuf, pVScsiLunMmc->cSectors);
231	pbBuf += 3;
232	}
233	else
234	{
235	scsiH2BE_U32(pbBuf, pVScsiLunMmc->cSectors);
236	pbBuf += 4;
237	}
238
239	pbBuf++ = 1; / session number */
240	pbBuf++ = 0x14; / ADR, control */
241	pbBuf++ = 0; / track number */
242	pbBuf++ = 1; / point */
243	pbBuf++ = 0; / min */
244	pbBuf++ = 0; / sec */
245	pbBuf++ = 0; / frame */
246	if (fMSF)
247	{
248	pbBuf++ = 0; / reserved */
249	scsiLBA2MSF(pbBuf, 0);
250	pbBuf += 3;
251	}
252	else
253	{
254	/* sector 0 */
255	scsiH2BE_U32(pbBuf, 0);
256	pbBuf += 4;
257	}
258
259	cbSize = pbBuf - aReply;
260	scsiH2BE_U16(&aReply[0], cbSize - 2);
261
262	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, cbSize));
263	return vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
264	}
265
266	static size_t vscsiLunMmcGetConfigurationFillFeatureListProfiles(uint8_t *pbBuf, size_t cbBuf)
267	{
268	if (cbBuf < 3*4)
269	return 0;
270
271	scsiH2BE_U16(pbBuf, 0x0); /* feature 0: list of profiles supported */
272	pbBuf[2] = (0 << 2) \| (1 << 1) \| (1 << 0); /* version 0, persistent, current */
273	pbBuf[3] = 8; /* additional bytes for profiles */
274	/* The MMC-3 spec says that DVD-ROM read capability should be reported
275	* before CD-ROM read capability. */
276	scsiH2BE_U16(pbBuf + 4, 0x10); /* profile: read-only DVD */
277	pbBuf[6] = (0 << 0); /* NOT current profile */
278	scsiH2BE_U16(pbBuf + 8, 0x08); /* profile: read only CD */
279	pbBuf[10] = (1 << 0); /* current profile */
280
281	return 34; / Header + 2 profiles entries */
282	}
283
284	static size_t vscsiLunMmcGetConfigurationFillFeatureCore(uint8_t *pbBuf, size_t cbBuf)
285	{
286	if (cbBuf < 12)
287	return 0;
288
289	scsiH2BE_U16(pbBuf, 0x1); /* feature 0001h: Core Feature */
290	pbBuf[2] = (0x2 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
291	pbBuf[3] = 8; /* Additional length */
292	scsiH2BE_U16(pbBuf + 4, 0x00000002); /* Physical interface ATAPI. */
293	pbBuf[8] = RT_BIT(0); /* DBE */
294	/* Rest is reserved. */
295
296	return 12;
297	}
298
299	static size_t vscsiLunMmcGetConfigurationFillFeatureMorphing(uint8_t *pbBuf, size_t cbBuf)
300	{
301	if (cbBuf < 8)
302	return 0;
303
304	scsiH2BE_U16(pbBuf, 0x2); /* feature 0002h: Morphing Feature */
305	pbBuf[2] = (0x1 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
306	pbBuf[3] = 4; /* Additional length */
307	pbBuf[4] = RT_BIT(1) \| 0x0; /* OCEvent \| !ASYNC */
308	/* Rest is reserved. */
309
310	return 8;
311	}
312
313	static size_t vscsiLunMmcGetConfigurationFillFeatureRemovableMedium(uint8_t *pbBuf, size_t cbBuf)
314	{
315	if (cbBuf < 8)
316	return 0;
317
318	scsiH2BE_U16(pbBuf, 0x3); /* feature 0003h: Removable Medium Feature */
319	pbBuf[2] = (0x2 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
320	pbBuf[3] = 4; /* Additional length */
321	/* Tray type loading \| Load \| Eject \| !Pvnt Jmpr \| !DBML \| Lock */
322	pbBuf[4] = (0x2 << 5) \| RT_BIT(4) \| RT_BIT(3) \| (0x0 << 2) \| (0x0 << 1) \| RT_BIT(0);
323	/* Rest is reserved. */
324
325	return 8;
326	}
327
328	static size_t vscsiLunMmcGetConfigurationFillFeatureRandomReadable(uint8_t *pbBuf, size_t cbBuf)
329	{
330	if (cbBuf < 12)
331	return 0;
332
333	scsiH2BE_U16(pbBuf, 0x10); /* feature 0010h: Random Readable Feature */
334	pbBuf[2] = (0x0 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
335	pbBuf[3] = 8; /* Additional length */
336	scsiH2BE_U32(pbBuf + 4, 2048); /* Logical block size. */
337	scsiH2BE_U16(pbBuf + 8, 0x10); /* Blocking (0x10 for DVD, CD is not defined). */
338	pbBuf[10] = 0; /* PP not present */
339	/* Rest is reserved. */
340
341	return 12;
342	}
343
344	static size_t vscsiLunMmcGetConfigurationFillFeatureCDRead(uint8_t *pbBuf, size_t cbBuf)
345	{
346	if (cbBuf < 8)
347	return 0;
348
349	scsiH2BE_U16(pbBuf, 0x1e); /* feature 001Eh: CD Read Feature */
350	pbBuf[2] = (0x2 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
351	pbBuf[3] = 0; /* Additional length */
352	pbBuf[4] = (0x0 << 7) \| (0x0 << 1) \| 0x0; /* !DAP \| !C2-Flags \| !CD-Text. */
353	/* Rest is reserved. */
354
355	return 8;
356	}
357
358	static size_t vscsiLunMmcGetConfigurationFillFeaturePowerManagement(uint8_t *pbBuf, size_t cbBuf)
359	{
360	if (cbBuf < 4)
361	return 0;
362
363	scsiH2BE_U16(pbBuf, 0x100); /* feature 0100h: Power Management Feature */
364	pbBuf[2] = (0x0 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
365	pbBuf[3] = 0; /* Additional length */
366
367	return 4;
368	}
369
370	static size_t vscsiLunMmcGetConfigurationFillFeatureTimeout(uint8_t *pbBuf, size_t cbBuf)
371	{
372	if (cbBuf < 8)
373	return 0;
374
375	scsiH2BE_U16(pbBuf, 0x105); /* feature 0105h: Timeout Feature */
376	pbBuf[2] = (0x0 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
377	pbBuf[3] = 4; /* Additional length */
378	pbBuf[4] = 0x0; /* !Group3 */
379
380	return 8;
381	}
382
383	/**
384	* Processes the GET CONFIGURATION SCSI request.
385	*
386	* @returns SCSI status code.
387	* @param pVScsiLunMmc The MMC LUN instance.
388	* @param pVScsiReq The VSCSI request.
389	* @param cbMaxTransfer The maximum transfer size.
390	*/
391	static int vscsiLunMmcGetConfiguration(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq, size_t cbMaxTransfer)
392	{
393	uint8_t aReply[80];
394	uint8_t *pbBuf = &aReply[0];
395	size_t cbBuf = sizeof(aReply);
396	size_t cbCopied = 0;
397
398	/* Accept valid request types only, and only starting feature 0. */
399	if ((pVScsiReq->pbCDB[1] & 0x03) == 3 \|\| scsiBE2H_U16(&pVScsiReq->pbCDB[2]) != 0)
400	return vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
401	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
402
403	/** @todo implement switching between CD-ROM and DVD-ROM profile (the only
404	* way to differentiate them right now is based on the image size). */
405	if (pVScsiLunMmc->cSectors)
406	scsiH2BE_U16(pbBuf + 6, 0x08); /* current profile: read-only CD */
407	else
408	scsiH2BE_U16(pbBuf + 6, 0x00); /* current profile: none -> no media */
409	cbBuf -= 8;
410	pbBuf += 8;
411
412	cbCopied = vscsiLunMmcGetConfigurationFillFeatureListProfiles(pbBuf, cbBuf);
413	cbBuf -= cbCopied;
414	pbBuf += cbCopied;
415
416	cbCopied = vscsiLunMmcGetConfigurationFillFeatureCore(pbBuf, cbBuf);
417	cbBuf -= cbCopied;
418	pbBuf += cbCopied;
419
420	cbCopied = vscsiLunMmcGetConfigurationFillFeatureMorphing(pbBuf, cbBuf);
421	cbBuf -= cbCopied;
422	pbBuf += cbCopied;
423
424	cbCopied = vscsiLunMmcGetConfigurationFillFeatureRemovableMedium(pbBuf, cbBuf);
425	cbBuf -= cbCopied;
426	pbBuf += cbCopied;
427
428	cbCopied = vscsiLunMmcGetConfigurationFillFeatureRandomReadable(pbBuf, cbBuf);
429	cbBuf -= cbCopied;
430	pbBuf += cbCopied;
431
432	cbCopied = vscsiLunMmcGetConfigurationFillFeatureCDRead(pbBuf, cbBuf);
433	cbBuf -= cbCopied;
434	pbBuf += cbCopied;
435
436	cbCopied = vscsiLunMmcGetConfigurationFillFeaturePowerManagement(pbBuf, cbBuf);
437	cbBuf -= cbCopied;
438	pbBuf += cbCopied;
439
440	cbCopied = vscsiLunMmcGetConfigurationFillFeatureTimeout(pbBuf, cbBuf);
441	cbBuf -= cbCopied;
442	pbBuf += cbCopied;
443
444	/* Set data length now. */
445	scsiH2BE_U32(&aReply[0], (uint32_t)(sizeof(aReply) - cbBuf));
446
447	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply) - cbBuf));
448	return vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
449	}
450
451	/**
452	* Processes the READ DVD STRUCTURE SCSI request.
453	*
454	* @returns SCSI status code.
455	* @param pVScsiLunMmc The MMC LUN instance.
456	* @param pVScsiReq The VSCSI request.
457	* @param cbMaxTransfer The maximum transfer size.
458	*/
459	static int vscsiLunMmcReadDvdStructure(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq, size_t cbMaxTransfer)
460	{
461	uint8_t aReply[25]; /* Counted a maximum of 20 bytes but better be on the safe side. */
462
463	RT_ZERO(aReply);
464
465	/* Act according to the indicated format. */
466	switch (pVScsiReq->pbCDB[7])
467	{
468	case 0x00:
469	case 0x01:
470	case 0x02:
471	case 0x03:
472	case 0x04:
473	case 0x05:
474	case 0x06:
475	case 0x07:
476	case 0x08:
477	case 0x09:
478	case 0x0a:
479	case 0x0b:
480	case 0x0c:
481	case 0x0d:
482	case 0x0e:
483	case 0x0f:
484	case 0x10:
485	case 0x11:
486	case 0x30:
487	case 0x31:
488	case 0xff:
489	if (pVScsiReq->pbCDB[1] == 0)
490	{
491	int uASC = SCSI_ASC_NONE;
492
493	switch (pVScsiReq->pbCDB[7])
494	{
495	case 0x0: /* Physical format information */
496	{
497	uint8_t uLayer = pVScsiReq->pbCDB[6];
498	uint64_t cTotalSectors;
499
500	if (uLayer != 0)
501	{
502	uASC = -SCSI_ASC_INV_FIELD_IN_CMD_PACKET;
503	break;
504	}
505
506	cTotalSectors = pVScsiLunMmc->cSectors;
507	cTotalSectors >>= 2;
508	if (cTotalSectors == 0)
509	{
510	uASC = -SCSI_ASC_MEDIUM_NOT_PRESENT;
511	break;
512	}
513
514	aReply[4] = 1; /* DVD-ROM, part version 1 */
515	aReply[5] = 0xf; /* 120mm disc, minimum rate unspecified */
516	aReply[6] = 1; /* one layer, read-only (per MMC-2 spec) */
517	aReply[7] = 0; /* default densities */
518
519	/* FIXME: 0x30000 per spec? */
520	scsiH2BE_U32(&aReply[8], 0); /* start sector */
521	scsiH2BE_U32(&aReply[12], cTotalSectors - 1); /* end sector */
522	scsiH2BE_U32(&aReply[16], cTotalSectors - 1); /* l0 end sector */
523
524	/* Size of buffer, not including 2 byte size field */
525	scsiH2BE_U32(&aReply[0], 2048 + 2);
526
527	/* 2k data + 4 byte header */
528	uASC = (2048 + 4);
529	break;
530	}
531	case 0x01: /* DVD copyright information */
532	aReply[4] = 0; /* no copyright data */
533	aReply[5] = 0; /* no region restrictions */
534
535	/* Size of buffer, not including 2 byte size field */
536	scsiH2BE_U16(&aReply[0], 4 + 2);
537
538	/* 4 byte header + 4 byte data */
539	uASC = (4 + 4);
540	break;
541
542	case 0x03: /* BCA information - invalid field for no BCA info */
543	uASC = -SCSI_ASC_INV_FIELD_IN_CMD_PACKET;
544	break;
545
546	case 0x04: /* DVD disc manufacturing information */
547	/* Size of buffer, not including 2 byte size field */
548	scsiH2BE_U16(&aReply[0], 2048 + 2);
549
550	/* 2k data + 4 byte header */
551	uASC = (2048 + 4);
552	break;
553	case 0xff:
554	/*
555	* This lists all the command capabilities above. Add new ones
556	* in order and update the length and buffer return values.
557	*/
558
559	aReply[4] = 0x00; /* Physical format */
560	aReply[5] = 0x40; /* Not writable, is readable */
561	scsiH2BE_U16(&aReply[6], 2048 + 4);
562
563	aReply[8] = 0x01; /* Copyright info */
564	aReply[9] = 0x40; /* Not writable, is readable */
565	scsiH2BE_U16(&aReply[10], 4 + 4);
566
567	aReply[12] = 0x03; /* BCA info */
568	aReply[13] = 0x40; /* Not writable, is readable */
569	scsiH2BE_U16(&aReply[14], 188 + 4);
570
571	aReply[16] = 0x04; /* Manufacturing info */
572	aReply[17] = 0x40; /* Not writable, is readable */
573	scsiH2BE_U16(&aReply[18], 2048 + 4);
574
575	/* Size of buffer, not including 2 byte size field */
576	scsiH2BE_U16(&aReply[0], 16 + 2);
577
578	/* data written + 4 byte header */
579	uASC = (16 + 4);
580	break;
581	default: /** @todo formats beyond DVD-ROM requires */
582	uASC = -SCSI_ASC_INV_FIELD_IN_CMD_PACKET;
583	}
584
585	if (uASC < 0)
586	return vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
587	-uASC, 0x00);
588	break;
589	}
590	/** @todo BD support, fall through for now */
591
592	/* Generic disk structures */
593	case 0x80: /** @todo AACS volume identifier */
594	case 0x81: /** @todo AACS media serial number */
595	case 0x82: /** @todo AACS media identifier */
596	case 0x83: /** @todo AACS media key block */
597	case 0x90: /** @todo List of recognized format layers */
598	case 0xc0: /** @todo Write protection status */
599	default:
600	return vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
601	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
602	}
603
604	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
605	return vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
606	}
607
608	/**
609	* Processes the MODE SENSE 10 SCSI request.
610	*
611	* @returns SCSI status code.
612	* @param pVScsiLunMmc The MMC LUN instance.
613	* @param pVScsiReq The VSCSI request.
614	* @param cbMaxTransfer The maximum transfer size.
615	*/
616	static int vscsiLunMmcModeSense10(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq, size_t cbMaxTransfer)
617	{
618	int rcReq;
619	uint8_t uPageControl = pVScsiReq->pbCDB[2] >> 6;
620	uint8_t uPageCode = pVScsiReq->pbCDB[2] & 0x3f;
621
622	switch (uPageControl)
623	{
624	case SCSI_PAGECONTROL_CURRENT:
625	switch (uPageCode)
626	{
627	case SCSI_MODEPAGE_ERROR_RECOVERY:
628	{
629	uint8_t aReply[16];
630
631	scsiH2BE_U16(&aReply[0], 16 + 6);
632	aReply[2] = (uint8_t)pVScsiLunMmc->u32MediaTrackType;
633	aReply[3] = 0;
634	aReply[4] = 0;
635	aReply[5] = 0;
636	aReply[6] = 0;
637	aReply[7] = 0;
638
639	aReply[8] = 0x01;
640	aReply[9] = 0x06;
641	aReply[10] = 0x00;
642	aReply[11] = 0x05;
643	aReply[12] = 0x00;
644	aReply[13] = 0x00;
645	aReply[14] = 0x00;
646	aReply[15] = 0x00;
647	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
648	rcReq = vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
649	break;
650	}
651	case SCSI_MODEPAGE_CD_STATUS:
652	{
653	uint8_t aReply[40];
654
655	scsiH2BE_U16(&aReply[0], 38);
656	aReply[2] = (uint8_t)pVScsiLunMmc->u32MediaTrackType;
657	aReply[3] = 0;
658	aReply[4] = 0;
659	aReply[5] = 0;
660	aReply[6] = 0;
661	aReply[7] = 0;
662
663	aReply[8] = 0x2a;
664	aReply[9] = 30; /* page length */
665	aReply[10] = 0x08; /* DVD-ROM read support */
666	aReply[11] = 0x00; /* no write support */
667	/* The following claims we support audio play. This is obviously false,
668	* but the Linux generic CDROM support makes many features depend on this
669	* capability. If it's not set, this causes many things to be disabled. */
670	aReply[12] = 0x71; /* multisession support, mode 2 form 1/2 support, audio play */
671	aReply[13] = 0x00; /* no subchannel reads supported */
672	aReply[14] = (1 << 0) \| (1 << 3) \| (1 << 5); /* lock supported, eject supported, tray type loading mechanism */
673	if (pVScsiLunMmc->fLocked)
674	aReply[14] \|= 1 << 1; /* report lock state */
675	aReply[15] = 0; /* no subchannel reads supported, no separate audio volume control, no changer etc. */
676	scsiH2BE_U16(&aReply[16], 5632); /* (obsolete) claim 32x speed support */
677	scsiH2BE_U16(&aReply[18], 2); /* number of audio volume levels */
678	scsiH2BE_U16(&aReply[20], 128); /* buffer size supported in Kbyte - We don't have a buffer because we write directly into guest memory.
679	Just write some dummy value. */
680	scsiH2BE_U16(&aReply[22], 5632); /* (obsolete) current read speed 32x */
681	aReply[24] = 0; /* reserved */
682	aReply[25] = 0; /* reserved for digital audio (see idx 15) */
683	scsiH2BE_U16(&aReply[26], 0); /* (obsolete) maximum write speed */
684	scsiH2BE_U16(&aReply[28], 0); /* (obsolete) current write speed */
685	scsiH2BE_U16(&aReply[30], 0); /* copy management revision supported 0=no CSS */
686	aReply[32] = 0; /* reserved */
687	aReply[33] = 0; /* reserved */
688	aReply[34] = 0; /* reserved */
689	aReply[35] = 1; /* rotation control CAV */
690	scsiH2BE_U16(&aReply[36], 0); /* current write speed */
691	scsiH2BE_U16(&aReply[38], 0); /* number of write speed performance descriptors */
692	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
693	rcReq = vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
694	break;
695	}
696	default:
697	rcReq = vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
698	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
699	break;
700	}
701	break;
702	case SCSI_PAGECONTROL_CHANGEABLE:
703	case SCSI_PAGECONTROL_DEFAULT:
704	rcReq = vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
705	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
706	break;
707	default:
708	case SCSI_PAGECONTROL_SAVED:
709	rcReq = vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
710	SCSI_ASC_SAVING_PARAMETERS_NOT_SUPPORTED, 0x00);
711	break;
712	}
713
714	return rcReq;
715	}
716
717	/**
718	* Processes the GET EVENT STATUS NOTIFICATION SCSI request.
719	*
720	* @returns SCSI status code.
721	* @param pVScsiLunMmc The MMC LUN instance.
722	* @param pVScsiReq The VSCSI request.
723	* @param cbMaxTransfer The maximum transfer size.
724	*/
725	static int vscsiLunMmcGetEventStatusNotification(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq,
726	size_t cbMaxTransfer)
727	{
728	uint32_t OldStatus;
729	uint32_t NewStatus;
730	uint8_t aReply[8];
731	RT_ZERO(aReply);
732
733	LogFlowFunc(("pVScsiLunMmc=%#p pVScsiReq=%#p cbMaxTransfer=%zu\n",
734	pVScsiLunMmc, pVScsiReq, cbMaxTransfer));
735
736	do
737	{
738	OldStatus = ASMAtomicReadU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus);
739	NewStatus = MMCEVENTSTATUSTYPE_UNCHANGED;
740
741	switch (OldStatus)
742	{
743	case MMCEVENTSTATUSTYPE_MEDIA_NEW:
744	/* mount */
745	scsiH2BE_U16(&aReply[0], 6);
746	aReply[2] = 0x04; /* media */
747	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
748	aReply[4] = 0x02; /* new medium */
749	aReply[5] = 0x02; /* medium present / door closed */
750	aReply[6] = 0x00;
751	aReply[7] = 0x00;
752	pVScsiLunMmc->Core.fReady = true;
753	break;
754
755	case MMCEVENTSTATUSTYPE_MEDIA_CHANGED:
756	case MMCEVENTSTATUSTYPE_MEDIA_REMOVED:
757	/* umount */
758	scsiH2BE_U16(&aReply[0], 6);
759	aReply[2] = 0x04; /* media */
760	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
761	aReply[4] = 0x03; /* media removal */
762	aReply[5] = 0x00; /* medium absent / door closed */
763	aReply[6] = 0x00;
764	aReply[7] = 0x00;
765	if (OldStatus == MMCEVENTSTATUSTYPE_MEDIA_CHANGED)
766	NewStatus = MMCEVENTSTATUSTYPE_MEDIA_NEW;
767	break;
768
769	case MMCEVENTSTATUSTYPE_MEDIA_EJECT_REQUESTED: /* currently unused */
770	scsiH2BE_U16(&aReply[0], 6);
771	aReply[2] = 0x04; /* media */
772	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
773	aReply[4] = 0x01; /* eject requested (eject button pressed) */
774	aReply[5] = 0x02; /* medium present / door closed */
775	aReply[6] = 0x00;
776	aReply[7] = 0x00;
777	break;
778
779	case MMCEVENTSTATUSTYPE_UNCHANGED:
780	default:
781	scsiH2BE_U16(&aReply[0], 6);
782	aReply[2] = 0x01; /* operational change request / notification */
783	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
784	aReply[4] = 0x00;
785	aReply[5] = 0x00;
786	aReply[6] = 0x00;
787	aReply[7] = 0x00;
788	break;
789	}
790
791	LogFlowFunc(("OldStatus=%u NewStatus=%u\n", OldStatus, NewStatus));
792
793	} while (!ASMAtomicCmpXchgU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus, NewStatus, OldStatus));
794
795	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
796	return vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
797	}
798
799	static DECLCALLBACK(int) vscsiLunMmcInit(PVSCSILUNINT pVScsiLun)
800	{
801	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
802	uint64_t cbDisk = 0;
803	int rc = VINF_SUCCESS;
804
805	ASMAtomicWriteU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus, MMCEVENTSTATUSTYPE_UNCHANGED);
806	pVScsiLunMmc->u32MediaTrackType = MMC_MEDIA_TYPE_UNKNOWN;
807	pVScsiLunMmc->cbSector = 2048; /* Default to 2K sectors. */
808	rc = vscsiLunMediumGetSize(pVScsiLun, &cbDisk);
809	if (RT_SUCCESS(rc))
810	pVScsiLunMmc->cSectors = cbDisk / pVScsiLunMmc->cbSector;
811
812	return rc;
813	}
814
815	static DECLCALLBACK(int) vscsiLunMmcDestroy(PVSCSILUNINT pVScsiLun)
816	{
817	RT_NOREF1(pVScsiLun);
818	return VINF_SUCCESS;
819	}
820
821	static DECLCALLBACK(int) vscsiLunMmcReqProcess(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq)
822	{
823	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
824	VSCSIIOREQTXDIR enmTxDir = VSCSIIOREQTXDIR_INVALID;
825	uint64_t uLbaStart = 0;
826	uint32_t cSectorTransfer = 0;
827	int rc = VINF_SUCCESS;
828	int rcReq = SCSI_STATUS_OK;
829	unsigned uCmd = pVScsiReq->pbCDB[0];
830
831	LogFlowFunc(("pVScsiLun=%#p{.fReady=%RTbool, .fMediaPresent=%RTbool} pVScsiReq=%#p{.pbCdb[0]=%#x}\n",
832	pVScsiLun, pVScsiLun->fReady, pVScsiLun->fMediaPresent, pVScsiReq, uCmd));
833
834	/*
835	* GET CONFIGURATION, GET EVENT/STATUS NOTIFICATION, INQUIRY, and REQUEST SENSE commands
836	* operate even when a unit attention condition exists for initiator; every other command
837	* needs to report CHECK CONDITION in that case.
838	*/
839	if ( !pVScsiLunMmc->Core.fReady
840	&& uCmd != SCSI_INQUIRY
841	&& uCmd != SCSI_GET_CONFIGURATION
842	&& uCmd != SCSI_GET_EVENT_STATUS_NOTIFICATION)
843	{
844	/*
845	* A note on media changes: As long as a medium is not present, the unit remains in
846	* the 'not ready' state. Technically the unit becomes 'ready' soon after a medium
847	* is inserted; however, we internally keep the 'not ready' state until we've had
848	* a chance to report the UNIT ATTENTION status indicating a media change.
849	*/
850	if (pVScsiLunMmc->Core.fMediaPresent)
851	{
852	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_UNIT_ATTENTION,
853	SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED, 0x00);
854	pVScsiLunMmc->Core.fReady = true;
855	}
856	else
857	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_NOT_READY,
858	SCSI_ASC_MEDIUM_NOT_PRESENT, 0x00);
859	}
860	else
861	{
862	switch (uCmd)
863	{
864	case SCSI_TEST_UNIT_READY:
865	Assert(!pVScsiLunMmc->Core.fReady); /* Only should get here if LUN isn't ready. */
866	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT, 0x00);
867	break;
868
869	case SCSI_INQUIRY:
870	{
871	SCSIINQUIRYDATA ScsiInquiryReply;
872
873	vscsiReqSetXferSize(pVScsiReq, scsiBE2H_U16(&pVScsiReq->pbCDB[3]));
874	memset(&ScsiInquiryReply, 0, sizeof(ScsiInquiryReply));
875
876	ScsiInquiryReply.cbAdditional = 31;
877	ScsiInquiryReply.fRMB = 1; /* Removable. */
878	ScsiInquiryReply.u5PeripheralDeviceType = SCSI_INQUIRY_DATA_PERIPHERAL_DEVICE_TYPE_CD_DVD;
879	ScsiInquiryReply.u3PeripheralQualifier = SCSI_INQUIRY_DATA_PERIPHERAL_QUALIFIER_CONNECTED;
880	ScsiInquiryReply.u3AnsiVersion = 0x05; /* MMC-?? compliant */
881	ScsiInquiryReply.fCmdQue = 1; /* Command queuing supported. */
882	ScsiInquiryReply.fWBus16 = 1;
883	scsiPadStrS(ScsiInquiryReply.achVendorId, "VBOX", 8);
884	scsiPadStrS(ScsiInquiryReply.achProductId, "CD-ROM", 16);
885	scsiPadStrS(ScsiInquiryReply.achProductLevel, "1.0", 4);
886
887	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, (uint8_t *)&ScsiInquiryReply, sizeof(SCSIINQUIRYDATA));
888	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
889	break;
890	}
891	case SCSI_READ_CAPACITY:
892	{
893	uint8_t aReply[8];
894	memset(aReply, 0, sizeof(aReply));
895	vscsiReqSetXferSize(pVScsiReq, sizeof(aReply));
896
897	/*
898	* If sector size exceeds the maximum value that is
899	* able to be stored in 4 bytes return 0xffffffff in this field
900	*/
901	if (pVScsiLunMmc->cSectors > UINT32_C(0xffffffff))
902	scsiH2BE_U32(aReply, UINT32_C(0xffffffff));
903	else
904	scsiH2BE_U32(aReply, pVScsiLunMmc->cSectors - 1);
905	scsiH2BE_U32(&aReply[4], pVScsiLunMmc->cbSector);
906	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
907	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
908	break;
909	}
910	case SCSI_MODE_SENSE_6:
911	{
912	uint8_t uModePage = pVScsiReq->pbCDB[2] & 0x3f;
913	uint8_t aReply[24];
914	uint8_t *pu8ReplyPos;
915	bool fValid = false;
916
917	vscsiReqSetXferSize(pVScsiReq, pVScsiReq->pbCDB[4]);
918	memset(aReply, 0, sizeof(aReply));
919	aReply[0] = 4; /* Reply length 4. */
920	aReply[1] = 0; /* Default media type. */
921	aReply[2] = RT_BIT(4); /* Caching supported. */
922	aReply[3] = 0; /* Block descriptor length. */
923
924	pu8ReplyPos = aReply + 4;
925
926	if ((uModePage == 0x08) \|\| (uModePage == 0x3f))
927	{
928	memset(pu8ReplyPos, 0, 20);
929	pu8ReplyPos++ = 0x08; / Page code. */
930	pu8ReplyPos++ = 0x12; / Size of the page. */
931	pu8ReplyPos++ = 0x4; / Write cache enabled. */
932	fValid = true;
933	} else if (uModePage == 0) {
934	fValid = true;
935	}
936
937	/* Querying unknown pages must fail. */
938	if (fValid) {
939	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
940	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
941	} else {
942	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
943	}
944	break;
945	}
946	case SCSI_MODE_SENSE_10:
947	{
948	size_t cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[7]);
949	vscsiReqSetXferSize(pVScsiReq, cbMax);
950	rcReq = vscsiLunMmcModeSense10(pVScsiLunMmc, pVScsiReq, cbMax);
951	break;
952	}
953	case SCSI_SEEK_10:
954	{
955	uint32_t uLba = scsiBE2H_U32(&pVScsiReq->pbCDB[2]);
956	if (uLba > pVScsiLunMmc->cSectors)
957	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
958	SCSI_ASC_LOGICAL_BLOCK_OOR, 0x00);
959	else
960	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
961	break;
962	}
963	case SCSI_MODE_SELECT_6:
964	{
965	/** @todo implement!! */
966	vscsiReqSetXferSize(pVScsiReq, pVScsiReq->pbCDB[4]);
967	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
968	break;
969	}
970	case SCSI_READ_6:
971	{
972	enmTxDir = VSCSIIOREQTXDIR_READ;
973	uLbaStart = ((uint64_t) pVScsiReq->pbCDB[3]
974	\| (pVScsiReq->pbCDB[2] << 8)
975	\| ((pVScsiReq->pbCDB[1] & 0x1f) << 16));
976	cSectorTransfer = pVScsiReq->pbCDB[4];
977	break;
978	}
979	case SCSI_READ_10:
980	{
981	enmTxDir = VSCSIIOREQTXDIR_READ;
982	uLbaStart = scsiBE2H_U32(&pVScsiReq->pbCDB[2]);
983	cSectorTransfer = scsiBE2H_U16(&pVScsiReq->pbCDB[7]);
984	break;
985	}
986	case SCSI_READ_12:
987	{
988	enmTxDir = VSCSIIOREQTXDIR_READ;
989	uLbaStart = scsiBE2H_U32(&pVScsiReq->pbCDB[2]);
990	cSectorTransfer = scsiBE2H_U32(&pVScsiReq->pbCDB[6]);
991	break;
992	}
993	case SCSI_READ_16:
994	{
995	enmTxDir = VSCSIIOREQTXDIR_READ;
996	uLbaStart = scsiBE2H_U64(&pVScsiReq->pbCDB[2]);
997	cSectorTransfer = scsiBE2H_U32(&pVScsiReq->pbCDB[10]);
998	break;
999	}
1000	case SCSI_READ_BUFFER:
1001	{
1002	uint8_t uDataMode = pVScsiReq->pbCDB[1] & 0x1f;
1003
1004	vscsiReqSetXferSize(pVScsiReq, scsiBE2H_U16(&pVScsiReq->pbCDB[6]));
1005
1006	switch (uDataMode)
1007	{
1008	case 0x00:
1009	case 0x01:
1010	case 0x02:
1011	case 0x03:
1012	case 0x0a:
1013	break;
1014	case 0x0b:
1015	{
1016	uint8_t aReply[4];
1017	RT_ZERO(aReply);
1018
1019	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
1020	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1021	break;
1022	}
1023	case 0x1a:
1024	case 0x1c:
1025	break;
1026	default:
1027	AssertMsgFailed(("Invalid data mode\n"));
1028	}
1029	break;
1030	}
1031	case SCSI_VERIFY_10:
1032	case SCSI_START_STOP_UNIT:
1033	{
1034	int rc2 = VINF_SUCCESS;
1035	switch (pVScsiReq->pbCDB[4] & 3)
1036	{
1037	case 0: /* 00 - Stop motor */
1038	case 1: /* 01 - Start motor */
1039	break;
1040	case 2: /* 10 - Eject media */
1041	rc2 = vscsiLunMediumEject(pVScsiLun);
1042	break;
1043	case 3: /* 11 - Load media */
1044	/** @todo */
1045	break;
1046	}
1047	if (RT_SUCCESS(rc2))
1048	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1049	else
1050	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_MEDIA_LOAD_OR_EJECT_FAILED, 0x02);
1051	break;
1052	}
1053	case SCSI_LOG_SENSE:
1054	{
1055	uint8_t uPageCode = pVScsiReq->pbCDB[2] & 0x3f;
1056	uint8_t uSubPageCode = pVScsiReq->pbCDB[3];
1057
1058	vscsiReqSetXferSize(pVScsiReq, scsiBE2H_U16(&pVScsiReq->pbCDB[7]));
1059
1060	switch (uPageCode)
1061	{
1062	case 0x00:
1063	{
1064	if (uSubPageCode == 0)
1065	{
1066	uint8_t aReply[4];
1067
1068	aReply[0] = 0;
1069	aReply[1] = 0;
1070	aReply[2] = 0;
1071	aReply[3] = 0;
1072
1073	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
1074	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1075	break;
1076	}
1077	}
1078	default:
1079	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1080	}
1081	break;
1082	}
1083	case SCSI_SERVICE_ACTION_IN_16:
1084	{
1085	switch (pVScsiReq->pbCDB[1] & 0x1f)
1086	{
1087	case SCSI_SVC_ACTION_IN_READ_CAPACITY_16:
1088	{
1089	uint8_t aReply[32];
1090
1091	memset(aReply, 0, sizeof(aReply));
1092	scsiH2BE_U64(aReply, pVScsiLunMmc->cSectors - 1);
1093	scsiH2BE_U32(&aReply[8], pVScsiLunMmc->cbSector);
1094	/* Leave the rest 0 */
1095
1096	vscsiReqSetXferSize(pVScsiReq, sizeof(aReply));
1097	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
1098	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1099	break;
1100	}
1101	default:
1102	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
1103	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00); /* Don't know if this is correct */
1104	}
1105	break;
1106	}
1107	case SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL:
1108	{
1109	pVScsiLunMmc->fLocked = RT_BOOL(pVScsiReq->pbCDB[4] & 0x01);
1110	vscsiLunMediumSetLock(pVScsiLun, pVScsiLunMmc->fLocked);
1111	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1112	break;
1113	}
1114	case SCSI_READ_TOC_PMA_ATIP:
1115	{
1116	uint8_t format;
1117	uint16_t cbMax;
1118	bool fMSF;
1119
1120	format = pVScsiReq->pbCDB[2] & 0x0f;
1121	cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[7]);
1122	fMSF = (pVScsiReq->pbCDB[1] >> 1) & 1;
1123
1124	vscsiReqSetXferSize(pVScsiReq, cbMax);
1125	switch (format)
1126	{
1127	case 0x00:
1128	rcReq = mmcReadTOCNormal(pVScsiLun, pVScsiReq, cbMax, fMSF);
1129	break;
1130	case 0x01:
1131	rcReq = mmcReadTOCMulti(pVScsiLun, pVScsiReq, cbMax, fMSF);
1132	break;
1133	case 0x02:
1134	rcReq = mmcReadTOCRaw(pVScsiLun, pVScsiReq, cbMax, fMSF);
1135	break;
1136	default:
1137	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1138	}
1139	break;
1140	}
1141	case SCSI_GET_EVENT_STATUS_NOTIFICATION:
1142	{
1143	/* Only supporting polled mode at the moment. */
1144	size_t cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[7]);
1145
1146	vscsiReqSetXferSize(pVScsiReq, cbMax);
1147	if (pVScsiReq->pbCDB[1] & 0x1)
1148	rcReq = vscsiLunMmcGetEventStatusNotification(pVScsiLunMmc, pVScsiReq, cbMax);
1149	else
1150	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1151	break;
1152	}
1153	case SCSI_MECHANISM_STATUS:
1154	{
1155	size_t cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[8]);
1156	uint8_t aReply[8];
1157
1158	vscsiReqSetXferSize(pVScsiReq, cbMax);
1159	scsiH2BE_U16(&aReply[0], 0);
1160	/* no current LBA */
1161	aReply[2] = 0;
1162	aReply[3] = 0;
1163	aReply[4] = 0;
1164	aReply[5] = 1;
1165	scsiH2BE_U16(&aReply[6], 0);
1166	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(sizeof(aReply), cbMax));
1167	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1168	break;
1169	}
1170	case SCSI_READ_DISC_INFORMATION:
1171	{
1172	uint8_t aReply[34];
1173	size_t cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[7]);
1174
1175	vscsiReqSetXferSize(pVScsiReq, cbMax);
1176	memset(aReply, '\0', sizeof(aReply));
1177	scsiH2BE_U16(&aReply[0], 32);
1178	aReply[2] = (0 << 4) \| (3 << 2) \| (2 << 0); /* not erasable, complete session, complete disc */
1179	aReply[3] = 1; /* number of first track */
1180	aReply[4] = 1; /* number of sessions (LSB) */
1181	aReply[5] = 1; /* first track number in last session (LSB) */
1182	aReply[6] = 1; /* last track number in last session (LSB) */
1183	aReply[7] = (0 << 7) \| (0 << 6) \| (1 << 5) \| (0 << 2) \| (0 << 0); /* disc id not valid, disc bar code not valid, unrestricted use, not dirty, not RW medium */
1184	aReply[8] = 0; /* disc type = CD-ROM */
1185	aReply[9] = 0; /* number of sessions (MSB) */
1186	aReply[10] = 0; /* number of sessions (MSB) */
1187	aReply[11] = 0; /* number of sessions (MSB) */
1188	scsiH2BE_U32(&aReply[16], 0x00ffffff); /* last session lead-in start time is not available */
1189	scsiH2BE_U32(&aReply[20], 0x00ffffff); /* last possible start time for lead-out is not available */
1190	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(sizeof(aReply), cbMax));
1191	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1192	break;
1193	}
1194	case SCSI_READ_TRACK_INFORMATION:
1195	{
1196	size_t cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[7]);
1197
1198	vscsiReqSetXferSize(pVScsiReq, cbMax);
1199	/* Accept address/number type of 1 only, and only track 1 exists. */
1200	if ((pVScsiReq->pbCDB[1] & 0x03) != 1 \|\| scsiBE2H_U32(&pVScsiReq->pbCDB[2]) != 1)
1201	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
1202	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1203	else
1204	{
1205	uint8_t aReply[36];
1206	RT_ZERO(aReply);
1207
1208	scsiH2BE_U16(&aReply[0], 34);
1209	aReply[2] = 1; /* track number (LSB) */
1210	aReply[3] = 1; /* session number (LSB) */
1211	aReply[5] = (0 << 5) \| (0 << 4) \| (4 << 0); /* not damaged, primary copy, data track */
1212	aReply[6] = (0 << 7) \| (0 << 6) \| (0 << 5) \| (0 << 6) \| (1 << 0); /* not reserved track, not blank, not packet writing, not fixed packet, data mode 1 */
1213	aReply[7] = (0 << 1) \| (0 << 0); /* last recorded address not valid, next recordable address not valid */
1214	scsiH2BE_U32(&aReply[8], 0); /* track start address is 0 */
1215	scsiH2BE_U32(&aReply[24], pVScsiLunMmc->cSectors); /* track size */
1216	aReply[32] = 0; /* track number (MSB) */
1217	aReply[33] = 0; /* session number (MSB) */
1218
1219	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(sizeof(aReply), cbMax));
1220	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1221	}
1222	break;
1223	}
1224	case SCSI_GET_CONFIGURATION:
1225	{
1226	size_t cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[7]);
1227	vscsiReqSetXferSize(pVScsiReq, cbMax);
1228	rcReq = vscsiLunMmcGetConfiguration(pVScsiLunMmc, pVScsiReq, cbMax);
1229	break;
1230	}
1231	case SCSI_READ_DVD_STRUCTURE:
1232	{
1233	size_t cbMax = scsiBE2H_U16(&pVScsiReq->pbCDB[8]);
1234	vscsiReqSetXferSize(pVScsiReq, cbMax);
1235	rcReq = vscsiLunMmcReadDvdStructure(pVScsiLunMmc, pVScsiReq, cbMax);
1236	break;
1237	}
1238	default:
1239	//AssertMsgFailed(("Command %#x [%s] not implemented\n", pVScsiReq->pbCDB[0], SCSICmdText(pVScsiReq->pbCDB[0])));
1240	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE, 0x00);
1241	}
1242	}
1243
1244	if (enmTxDir != VSCSIIOREQTXDIR_INVALID)
1245	{
1246	LogFlow(("%s: uLbaStart=%llu cSectorTransfer=%u\n",
1247	__FUNCTION__, uLbaStart, cSectorTransfer));
1248
1249	vscsiReqSetXferSize(pVScsiReq, cSectorTransfer * pVScsiLunMmc->cbSector);
1250	if (RT_UNLIKELY(uLbaStart + cSectorTransfer > pVScsiLunMmc->cSectors))
1251	{
1252	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_LOGICAL_BLOCK_OOR, 0x00);
1253	vscsiDeviceReqComplete(pVScsiLun->pVScsiDevice, pVScsiReq, rcReq, false, VINF_SUCCESS);
1254	}
1255	else if (!cSectorTransfer)
1256	{
1257	/* A 0 transfer length is not an error. */
1258	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1259	vscsiDeviceReqComplete(pVScsiLun->pVScsiDevice, pVScsiReq, rcReq, false, VINF_SUCCESS);
1260	}
1261	else
1262	{
1263	/* Enqueue new I/O request */
1264	rc = vscsiIoReqTransferEnqueue(pVScsiLun, pVScsiReq, enmTxDir,
1265	uLbaStart * pVScsiLunMmc->cbSector,
1266	cSectorTransfer * pVScsiLunMmc->cbSector);
1267	}
1268	}
1269	else /* Request completed */
1270	vscsiDeviceReqComplete(pVScsiLun->pVScsiDevice, pVScsiReq, rcReq, false, VINF_SUCCESS);
1271
1272	return rc;
1273	}
1274
1275	/** @interface_method_impl{VSCSILUNDESC,pfnVScsiLunMediumInserted} */
1276	static DECLCALLBACK(int) vscsiLunMmcMediumInserted(PVSCSILUNINT pVScsiLun)
1277	{
1278	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
1279	uint64_t cbDisk = 0;
1280	int rc = vscsiLunMediumGetSize(pVScsiLun, &cbDisk);
1281	if (RT_SUCCESS(rc))
1282	{
1283	pVScsiLunMmc->cSectors = cbDisk / pVScsiLunMmc->cbSector;
1284
1285	uint32_t OldStatus, NewStatus;
1286	do
1287	{
1288	OldStatus = ASMAtomicReadU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus);
1289	switch (OldStatus)
1290	{
1291	case MMCEVENTSTATUSTYPE_MEDIA_CHANGED:
1292	case MMCEVENTSTATUSTYPE_MEDIA_REMOVED:
1293	/* no change, we will send "medium removed" + "medium inserted" */
1294	NewStatus = MMCEVENTSTATUSTYPE_MEDIA_CHANGED;
1295	break;
1296	default:
1297	NewStatus = MMCEVENTSTATUSTYPE_MEDIA_NEW;
1298	break;
1299	}
1300	} while (!ASMAtomicCmpXchgU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus,
1301	NewStatus, OldStatus));
1302
1303	ASMAtomicXchgU32(&pVScsiLunMmc->u32MediaTrackType, MMC_MEDIA_TYPE_UNKNOWN);
1304	}
1305
1306	return rc;
1307	}
1308
1309	/** @interface_method_impl{VSCSILUNDESC,pfnVScsiLunMediumRemoved} */
1310	static DECLCALLBACK(int) vscsiLunMmcMediumRemoved(PVSCSILUNINT pVScsiLun)
1311	{
1312	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
1313
1314	ASMAtomicWriteU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus, MMCEVENTSTATUSTYPE_MEDIA_REMOVED);
1315	ASMAtomicXchgU32(&pVScsiLunMmc->u32MediaTrackType, MMC_MEDIA_TYPE_NO_DISC);
1316	return VINF_SUCCESS;
1317	}
1318
1319
1320	VSCSILUNDESC g_VScsiLunTypeMmc =
1321	{
1322	/** enmLunType */
1323	VSCSILUNTYPE_MMC,
1324	/** pcszDescName */
1325	"MMC",
1326	/** cbLun */
1327	sizeof(VSCSILUNMMC),
1328	/** cSupOpcInfo */
1329	0,
1330	/** paSupOpcInfo */
1331	NULL,
1332	/** pfnVScsiLunInit */
1333	vscsiLunMmcInit,
1334	/** pfnVScsiLunDestroy */
1335	vscsiLunMmcDestroy,
1336	/** pfnVScsiLunReqProcess */
1337	vscsiLunMmcReqProcess,
1338	/** pfnVScsiLunMediumInserted */
1339	vscsiLunMmcMediumInserted,
1340	/** pfnVScsiLunMediumRemoved */
1341	vscsiLunMmcMediumRemoved
1342	};

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source: vbox/trunk/src/VBox/Devices/Storage/VSCSI/VSCSILunMmc.cpp@ 65620

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