VSCSILunMmc.cpp@ 64064

Last change on this file since 64064 was 64064, checked in by vboxsync, 8 years ago
VSCSI: Port missing commands over from the AHCI controller
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1	/* $Id: VSCSILunMmc.cpp 64064 2016-09-28 08:51:22Z 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	DECLINLINE(void) mmcLBA2MSF(uint8_t *pbBuf, uint32_t iLBA)
83	{
84	iLBA += 150;
85	pbBuf[0] = (iLBA / 75) / 60;
86	pbBuf[1] = (iLBA / 75) % 60;
87	pbBuf[2] = iLBA % 75;
88	}
89
90	#if 0 /* unused */
91	DECLINLINE(uint32_t) mmcMSF2LBA(const uint8_t *pbBuf)
92	{
93	return (pbBuf[0] * 60 + pbBuf[1]) * 75 + pbBuf[2];
94	}
95	#endif
96
97
98	/* Fabricate normal TOC information. */
99	static int mmcReadTOCNormal(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer, bool fMSF)
100	{
101	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
102	uint8_t aReply[32];
103	uint8_t *pbBuf = aReply;
104	uint8_t *q;
105	uint8_t iStartTrack;
106	uint32_t cbSize;
107
108	iStartTrack = pVScsiReq->pbCDB[6];
109	if (iStartTrack > 1 && iStartTrack != 0xaa)
110	{
111	return vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
112	}
113	q = pbBuf + 2;
114	q++ = 1; / first session */
115	q++ = 1; / last session */
116	if (iStartTrack <= 1)
117	{
118	q++ = 0; / reserved */
119	q++ = 0x14; / ADR, CONTROL */
120	q++ = 1; / track number */
121	q++ = 0; / reserved */
122	if (fMSF)
123	{
124	q++ = 0; / reserved */
125	mmcLBA2MSF(q, 0);
126	q += 3;
127	}
128	else
129	{
130	/* sector 0 */
131	vscsiH2BEU32(q, 0);
132	q += 4;
133	}
134	}
135	/* lead out track */
136	q++ = 0; / reserved */
137	q++ = 0x14; / ADR, CONTROL */
138	q++ = 0xaa; / track number */
139	q++ = 0; / reserved */
140	if (fMSF)
141	{
142	q++ = 0; / reserved */
143	mmcLBA2MSF(q, pVScsiLunMmc->cSectors);
144	q += 3;
145	}
146	else
147	{
148	vscsiH2BEU32(q, pVScsiLunMmc->cSectors);
149	q += 4;
150	}
151	cbSize = q - pbBuf;
152	Assert(cbSize <= sizeof(aReply));
153	vscsiH2BEU16(pbBuf, cbSize - 2);
154	if (cbSize < cbMaxTransfer)
155	cbMaxTransfer = cbSize;
156
157	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, cbMaxTransfer);
158
159	return vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
160	}
161
162	/* Fabricate session information. */
163	static int mmcReadTOCMulti(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer, bool fMSF)
164	{
165	RT_NOREF1(cbMaxTransfer);
166	uint8_t aReply[32];
167	uint8_t *pbBuf = aReply;
168
169	/* multi session: only a single session defined */
170	memset(pbBuf, 0, 12);
171	pbBuf[1] = 0x0a;
172	pbBuf[2] = 0x01; /* first complete session number */
173	pbBuf[3] = 0x01; /* last complete session number */
174	pbBuf[5] = 0x14; /* ADR, CONTROL */
175	pbBuf[6] = 1; /* first track in last complete session */
176
177	if (fMSF)
178	{
179	pbBuf[8] = 0; /* reserved */
180	mmcLBA2MSF(pbBuf + 8, 0);
181	}
182	else
183	{
184	/* sector 0 */
185	vscsiH2BEU32(pbBuf + 8, 0);
186	}
187
188	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, 12);
189
190	return vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
191	}
192
193	/**
194	* Create raw TOC data information.
195	*
196	* @returns SCSI status code.
197	* @param pVScsiLun The LUN instance.
198	* @param pVScsiReq The VSCSI request.
199	* @param cbMaxTransfer The maximum transfer size.
200	* @param fMSF Flag whether to use MSF format to encode sector numbers.
201	*/
202	static int mmcReadTOCRaw(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer, bool fMSF)
203	{
204	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
205	uint8_t aReply[50]; /* Counted a maximum of 45 bytes but better be on the safe side. */
206	uint32_t cbSize;
207	uint8_t *pbBuf = &aReply[0] + 2;
208
209	pbBuf++ = 1; / first session */
210	pbBuf++ = 1; / last session */
211
212	pbBuf++ = 1; / session number */
213	pbBuf++ = 0x14; / data track */
214	pbBuf++ = 0; / track number */
215	pbBuf++ = 0xa0; / first track in program area */
216	pbBuf++ = 0; / min */
217	pbBuf++ = 0; / sec */
218	pbBuf++ = 0; / frame */
219	*pbBuf++ = 0;
220	pbBuf++ = 1; / first track */
221	pbBuf++ = 0x00; / disk type CD-DA or CD data */
222	*pbBuf++ = 0;
223
224	pbBuf++ = 1; / session number */
225	pbBuf++ = 0x14; / data track */
226	pbBuf++ = 0; / track number */
227	pbBuf++ = 0xa1; / last track in program area */
228	pbBuf++ = 0; / min */
229	pbBuf++ = 0; / sec */
230	pbBuf++ = 0; / frame */
231	*pbBuf++ = 0;
232	pbBuf++ = 1; / last track */
233	*pbBuf++ = 0;
234	*pbBuf++ = 0;
235
236	pbBuf++ = 1; / session number */
237	pbBuf++ = 0x14; / data track */
238	pbBuf++ = 0; / track number */
239	pbBuf++ = 0xa2; / lead-out */
240	pbBuf++ = 0; / min */
241	pbBuf++ = 0; / sec */
242	pbBuf++ = 0; / frame */
243	if (fMSF)
244	{
245	pbBuf++ = 0; / reserved */
246	mmcLBA2MSF(pbBuf, pVScsiLunMmc->cSectors);
247	pbBuf += 3;
248	}
249	else
250	{
251	vscsiH2BEU32(pbBuf, pVScsiLunMmc->cSectors);
252	pbBuf += 4;
253	}
254
255	pbBuf++ = 1; / session number */
256	pbBuf++ = 0x14; / ADR, control */
257	pbBuf++ = 0; / track number */
258	pbBuf++ = 1; / point */
259	pbBuf++ = 0; / min */
260	pbBuf++ = 0; / sec */
261	pbBuf++ = 0; / frame */
262	if (fMSF)
263	{
264	pbBuf++ = 0; / reserved */
265	mmcLBA2MSF(pbBuf, 0);
266	pbBuf += 3;
267	}
268	else
269	{
270	/* sector 0 */
271	vscsiH2BEU32(pbBuf, 0);
272	pbBuf += 4;
273	}
274
275	cbSize = pbBuf - aReply;
276	vscsiH2BEU16(&aReply[0], cbSize - 2);
277
278	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, cbSize));
279	return vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
280	}
281
282	static size_t vscsiLunMmcGetConfigurationFillFeatureListProfiles(uint8_t *pbBuf, size_t cbBuf)
283	{
284	if (cbBuf < 3*4)
285	return 0;
286
287	vscsiH2BEU16(pbBuf, 0x0); /* feature 0: list of profiles supported */
288	pbBuf[2] = (0 << 2) \| (1 << 1) \| (1 << 0); /* version 0, persistent, current */
289	pbBuf[3] = 8; /* additional bytes for profiles */
290	/* The MMC-3 spec says that DVD-ROM read capability should be reported
291	* before CD-ROM read capability. */
292	vscsiH2BEU16(pbBuf + 4, 0x10); /* profile: read-only DVD */
293	pbBuf[6] = (0 << 0); /* NOT current profile */
294	vscsiH2BEU16(pbBuf + 8, 0x08); /* profile: read only CD */
295	pbBuf[10] = (1 << 0); /* current profile */
296
297	return 34; / Header + 2 profiles entries */
298	}
299
300	static size_t vscsiLunMmcGetConfigurationFillFeatureCore(uint8_t *pbBuf, size_t cbBuf)
301	{
302	if (cbBuf < 12)
303	return 0;
304
305	vscsiH2BEU16(pbBuf, 0x1); /* feature 0001h: Core Feature */
306	pbBuf[2] = (0x2 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
307	pbBuf[3] = 8; /* Additional length */
308	vscsiH2BEU16(pbBuf + 4, 0x00000002); /* Physical interface ATAPI. */
309	pbBuf[8] = RT_BIT(0); /* DBE */
310	/* Rest is reserved. */
311
312	return 12;
313	}
314
315	static size_t vscsiLunMmcGetConfigurationFillFeatureMorphing(uint8_t *pbBuf, size_t cbBuf)
316	{
317	if (cbBuf < 8)
318	return 0;
319
320	vscsiH2BEU16(pbBuf, 0x2); /* feature 0002h: Morphing Feature */
321	pbBuf[2] = (0x1 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
322	pbBuf[3] = 4; /* Additional length */
323	pbBuf[4] = RT_BIT(1) \| 0x0; /* OCEvent \| !ASYNC */
324	/* Rest is reserved. */
325
326	return 8;
327	}
328
329	static size_t vscsiLunMmcGetConfigurationFillFeatureRemovableMedium(uint8_t *pbBuf, size_t cbBuf)
330	{
331	if (cbBuf < 8)
332	return 0;
333
334	vscsiH2BEU16(pbBuf, 0x3); /* feature 0003h: Removable Medium Feature */
335	pbBuf[2] = (0x2 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
336	pbBuf[3] = 4; /* Additional length */
337	/* Tray type loading \| Load \| Eject \| !Pvnt Jmpr \| !DBML \| Lock */
338	pbBuf[4] = (0x2 << 5) \| RT_BIT(4) \| RT_BIT(3) \| (0x0 << 2) \| (0x0 << 1) \| RT_BIT(0);
339	/* Rest is reserved. */
340
341	return 8;
342	}
343
344	static size_t vscsiLunMmcGetConfigurationFillFeatureRandomReadable(uint8_t *pbBuf, size_t cbBuf)
345	{
346	if (cbBuf < 12)
347	return 0;
348
349	vscsiH2BEU16(pbBuf, 0x10); /* feature 0010h: Random Readable Feature */
350	pbBuf[2] = (0x0 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
351	pbBuf[3] = 8; /* Additional length */
352	vscsiH2BEU32(pbBuf + 4, 2048); /* Logical block size. */
353	vscsiH2BEU16(pbBuf + 8, 0x10); /* Blocking (0x10 for DVD, CD is not defined). */
354	pbBuf[10] = 0; /* PP not present */
355	/* Rest is reserved. */
356
357	return 12;
358	}
359
360	static size_t vscsiLunMmcGetConfigurationFillFeatureCDRead(uint8_t *pbBuf, size_t cbBuf)
361	{
362	if (cbBuf < 8)
363	return 0;
364
365	vscsiH2BEU16(pbBuf, 0x1e); /* feature 001Eh: CD Read Feature */
366	pbBuf[2] = (0x2 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
367	pbBuf[3] = 0; /* Additional length */
368	pbBuf[4] = (0x0 << 7) \| (0x0 << 1) \| 0x0; /* !DAP \| !C2-Flags \| !CD-Text. */
369	/* Rest is reserved. */
370
371	return 8;
372	}
373
374	static size_t vscsiLunMmcGetConfigurationFillFeaturePowerManagement(uint8_t *pbBuf, size_t cbBuf)
375	{
376	if (cbBuf < 4)
377	return 0;
378
379	vscsiH2BEU16(pbBuf, 0x100); /* feature 0100h: Power Management Feature */
380	pbBuf[2] = (0x0 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
381	pbBuf[3] = 0; /* Additional length */
382
383	return 4;
384	}
385
386	static size_t vscsiLunMmcGetConfigurationFillFeatureTimeout(uint8_t *pbBuf, size_t cbBuf)
387	{
388	if (cbBuf < 8)
389	return 0;
390
391	vscsiH2BEU16(pbBuf, 0x105); /* feature 0105h: Timeout Feature */
392	pbBuf[2] = (0x0 << 2) \| RT_BIT(1) \| RT_BIT(0); /* Version \| Persistent \| Current */
393	pbBuf[3] = 4; /* Additional length */
394	pbBuf[4] = 0x0; /* !Group3 */
395
396	return 8;
397	}
398
399	/**
400	* Processes the GET CONFIGURATION SCSI request.
401	*
402	* @returns SCSI status code.
403	* @param pVScsiLunMmc The MMC LUN instance.
404	* @param pVScsiReq The VSCSI request.
405	* @param cbMaxTransfer The maximum transfer size.
406	*/
407	static int vscsiLunMmcGetConfiguration(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer)
408	{
409	uint8_t aReply[80];
410	uint8_t *pbBuf = &aReply[0];
411	size_t cbBuf = sizeof(aReply);
412	size_t cbCopied = 0;
413
414	/* Accept valid request types only, and only starting feature 0. */
415	if ((pVScsiReq->pbCDB[1] & 0x03) == 3 \|\| vscsiBE2HU16(&pVScsiReq->pbCDB[2]) != 0)
416	return vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
417	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
418
419	/** @todo implement switching between CD-ROM and DVD-ROM profile (the only
420	* way to differentiate them right now is based on the image size). */
421	if (pVScsiLunMmc->cSectors)
422	vscsiH2BEU16(pbBuf + 6, 0x08); /* current profile: read-only CD */
423	else
424	vscsiH2BEU16(pbBuf + 6, 0x00); /* current profile: none -> no media */
425	cbBuf -= 8;
426	pbBuf += 8;
427
428	cbCopied = vscsiLunMmcGetConfigurationFillFeatureListProfiles(pbBuf, cbBuf);
429	cbBuf -= cbCopied;
430	pbBuf += cbCopied;
431
432	cbCopied = vscsiLunMmcGetConfigurationFillFeatureCore(pbBuf, cbBuf);
433	cbBuf -= cbCopied;
434	pbBuf += cbCopied;
435
436	cbCopied = vscsiLunMmcGetConfigurationFillFeatureMorphing(pbBuf, cbBuf);
437	cbBuf -= cbCopied;
438	pbBuf += cbCopied;
439
440	cbCopied = vscsiLunMmcGetConfigurationFillFeatureRemovableMedium(pbBuf, cbBuf);
441	cbBuf -= cbCopied;
442	pbBuf += cbCopied;
443
444	cbCopied = vscsiLunMmcGetConfigurationFillFeatureRandomReadable(pbBuf, cbBuf);
445	cbBuf -= cbCopied;
446	pbBuf += cbCopied;
447
448	cbCopied = vscsiLunMmcGetConfigurationFillFeatureCDRead(pbBuf, cbBuf);
449	cbBuf -= cbCopied;
450	pbBuf += cbCopied;
451
452	cbCopied = vscsiLunMmcGetConfigurationFillFeaturePowerManagement(pbBuf, cbBuf);
453	cbBuf -= cbCopied;
454	pbBuf += cbCopied;
455
456	cbCopied = vscsiLunMmcGetConfigurationFillFeatureTimeout(pbBuf, cbBuf);
457	cbBuf -= cbCopied;
458	pbBuf += cbCopied;
459
460	/* Set data length now. */
461	vscsiH2BEU32(&aReply[0], (uint32_t)(sizeof(aReply) - cbBuf));
462
463	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply) - cbBuf));
464	return vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
465	}
466
467	/**
468	* Processes the READ DVD STRUCTURE SCSI request.
469	*
470	* @returns SCSI status code.
471	* @param pVScsiLunMmc The MMC LUN instance.
472	* @param pVScsiReq The VSCSI request.
473	* @param cbMaxTransfer The maximum transfer size.
474	*/
475	static int vscsiLunMmcReadDvdStructure(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer)
476	{
477	uint8_t aReply[25]; /* Counted a maximum of 20 bytes but better be on the safe side. */
478
479	RT_ZERO(aReply);
480
481	/* Act according to the indicated format. */
482	switch (pVScsiReq->pbCDB[7])
483	{
484	case 0x00:
485	case 0x01:
486	case 0x02:
487	case 0x03:
488	case 0x04:
489	case 0x05:
490	case 0x06:
491	case 0x07:
492	case 0x08:
493	case 0x09:
494	case 0x0a:
495	case 0x0b:
496	case 0x0c:
497	case 0x0d:
498	case 0x0e:
499	case 0x0f:
500	case 0x10:
501	case 0x11:
502	case 0x30:
503	case 0x31:
504	case 0xff:
505	if (pVScsiReq->pbCDB[1] == 0)
506	{
507	int uASC = SCSI_ASC_NONE;
508
509	switch (pVScsiReq->pbCDB[7])
510	{
511	case 0x0: /* Physical format information */
512	{
513	uint8_t uLayer = pVScsiReq->pbCDB[6];
514	uint64_t cTotalSectors;
515
516	if (uLayer != 0)
517	{
518	uASC = -SCSI_ASC_INV_FIELD_IN_CMD_PACKET;
519	break;
520	}
521
522	cTotalSectors = pVScsiLunMmc->cSectors;
523	cTotalSectors >>= 2;
524	if (cTotalSectors == 0)
525	{
526	uASC = -SCSI_ASC_MEDIUM_NOT_PRESENT;
527	break;
528	}
529
530	aReply[4] = 1; /* DVD-ROM, part version 1 */
531	aReply[5] = 0xf; /* 120mm disc, minimum rate unspecified */
532	aReply[6] = 1; /* one layer, read-only (per MMC-2 spec) */
533	aReply[7] = 0; /* default densities */
534
535	/* FIXME: 0x30000 per spec? */
536	vscsiH2BEU32(&aReply[8], 0); /* start sector */
537	vscsiH2BEU32(&aReply[12], cTotalSectors - 1); /* end sector */
538	vscsiH2BEU32(&aReply[16], cTotalSectors - 1); /* l0 end sector */
539
540	/* Size of buffer, not including 2 byte size field */
541	vscsiH2BEU32(&aReply[0], 2048 + 2);
542
543	/* 2k data + 4 byte header */
544	uASC = (2048 + 4);
545	break;
546	}
547	case 0x01: /* DVD copyright information */
548	aReply[4] = 0; /* no copyright data */
549	aReply[5] = 0; /* no region restrictions */
550
551	/* Size of buffer, not including 2 byte size field */
552	vscsiH2BEU16(&aReply[0], 4 + 2);
553
554	/* 4 byte header + 4 byte data */
555	uASC = (4 + 4);
556	break;
557
558	case 0x03: /* BCA information - invalid field for no BCA info */
559	uASC = -SCSI_ASC_INV_FIELD_IN_CMD_PACKET;
560	break;
561
562	case 0x04: /* DVD disc manufacturing information */
563	/* Size of buffer, not including 2 byte size field */
564	vscsiH2BEU16(&aReply[0], 2048 + 2);
565
566	/* 2k data + 4 byte header */
567	uASC = (2048 + 4);
568	break;
569	case 0xff:
570	/*
571	* This lists all the command capabilities above. Add new ones
572	* in order and update the length and buffer return values.
573	*/
574
575	aReply[4] = 0x00; /* Physical format */
576	aReply[5] = 0x40; /* Not writable, is readable */
577	vscsiH2BEU16(&aReply[6], 2048 + 4);
578
579	aReply[8] = 0x01; /* Copyright info */
580	aReply[9] = 0x40; /* Not writable, is readable */
581	vscsiH2BEU16(&aReply[10], 4 + 4);
582
583	aReply[12] = 0x03; /* BCA info */
584	aReply[13] = 0x40; /* Not writable, is readable */
585	vscsiH2BEU16(&aReply[14], 188 + 4);
586
587	aReply[16] = 0x04; /* Manufacturing info */
588	aReply[17] = 0x40; /* Not writable, is readable */
589	vscsiH2BEU16(&aReply[18], 2048 + 4);
590
591	/* Size of buffer, not including 2 byte size field */
592	vscsiH2BEU16(&aReply[0], 16 + 2);
593
594	/* data written + 4 byte header */
595	uASC = (16 + 4);
596	break;
597	default: /** @todo formats beyond DVD-ROM requires */
598	uASC = -SCSI_ASC_INV_FIELD_IN_CMD_PACKET;
599	}
600
601	if (uASC < 0)
602	return vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
603	-uASC, 0x00);
604	break;
605	}
606	/** @todo BD support, fall through for now */
607
608	/* Generic disk structures */
609	case 0x80: /** @todo AACS volume identifier */
610	case 0x81: /** @todo AACS media serial number */
611	case 0x82: /** @todo AACS media identifier */
612	case 0x83: /** @todo AACS media key block */
613	case 0x90: /** @todo List of recognized format layers */
614	case 0xc0: /** @todo Write protection status */
615	default:
616	return vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
617	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
618	}
619
620	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
621	return vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
622	}
623
624	/**
625	* Processes the MODE SENSE 10 SCSI request.
626	*
627	* @returns SCSI status code.
628	* @param pVScsiLunMmc The MMC LUN instance.
629	* @param pVScsiReq The VSCSI request.
630	* @param cbMaxTransfer The maximum transfer size.
631	*/
632	static int vscsiLunMmcModeSense10(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq, uint16_t cbMaxTransfer)
633	{
634	int rcReq;
635	uint8_t uPageControl = pVScsiReq->pbCDB[2] >> 6;
636	uint8_t uPageCode = pVScsiReq->pbCDB[2] & 0x3f;
637
638	switch (uPageControl)
639	{
640	case SCSI_PAGECONTROL_CURRENT:
641	switch (uPageCode)
642	{
643	case SCSI_MODEPAGE_ERROR_RECOVERY:
644	{
645	uint8_t aReply[16];
646
647	vscsiH2BEU16(&aReply[0], 16 + 6);
648	aReply[2] = (uint8_t)pVScsiLunMmc->u32MediaTrackType;
649	aReply[3] = 0;
650	aReply[4] = 0;
651	aReply[5] = 0;
652	aReply[6] = 0;
653	aReply[7] = 0;
654
655	aReply[8] = 0x01;
656	aReply[9] = 0x06;
657	aReply[10] = 0x00;
658	aReply[11] = 0x05;
659	aReply[12] = 0x00;
660	aReply[13] = 0x00;
661	aReply[14] = 0x00;
662	aReply[15] = 0x00;
663	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
664	rcReq = vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
665	break;
666	}
667	case SCSI_MODEPAGE_CD_STATUS:
668	{
669	uint8_t aReply[40];
670
671	vscsiH2BEU16(&aReply[0], 38);
672	aReply[2] = (uint8_t)pVScsiLunMmc->u32MediaTrackType;
673	aReply[3] = 0;
674	aReply[4] = 0;
675	aReply[5] = 0;
676	aReply[6] = 0;
677	aReply[7] = 0;
678
679	aReply[8] = 0x2a;
680	aReply[9] = 30; /* page length */
681	aReply[10] = 0x08; /* DVD-ROM read support */
682	aReply[11] = 0x00; /* no write support */
683	/* The following claims we support audio play. This is obviously false,
684	* but the Linux generic CDROM support makes many features depend on this
685	* capability. If it's not set, this causes many things to be disabled. */
686	aReply[12] = 0x71; /* multisession support, mode 2 form 1/2 support, audio play */
687	aReply[13] = 0x00; /* no subchannel reads supported */
688	aReply[14] = (1 << 0) \| (1 << 3) \| (1 << 5); /* lock supported, eject supported, tray type loading mechanism */
689	if (pVScsiLunMmc->fLocked)
690	aReply[14] \|= 1 << 1; /* report lock state */
691	aReply[15] = 0; /* no subchannel reads supported, no separate audio volume control, no changer etc. */
692	vscsiH2BEU16(&aReply[16], 5632); /* (obsolete) claim 32x speed support */
693	vscsiH2BEU16(&aReply[18], 2); /* number of audio volume levels */
694	vscsiH2BEU16(&aReply[20], 128); /* buffer size supported in Kbyte - We don't have a buffer because we write directly into guest memory.
695	Just write some dummy value. */
696	vscsiH2BEU16(&aReply[22], 5632); /* (obsolete) current read speed 32x */
697	aReply[24] = 0; /* reserved */
698	aReply[25] = 0; /* reserved for digital audio (see idx 15) */
699	vscsiH2BEU16(&aReply[26], 0); /* (obsolete) maximum write speed */
700	vscsiH2BEU16(&aReply[28], 0); /* (obsolete) current write speed */
701	vscsiH2BEU16(&aReply[30], 0); /* copy management revision supported 0=no CSS */
702	aReply[32] = 0; /* reserved */
703	aReply[33] = 0; /* reserved */
704	aReply[34] = 0; /* reserved */
705	aReply[35] = 1; /* rotation control CAV */
706	vscsiH2BEU16(&aReply[36], 0); /* current write speed */
707	vscsiH2BEU16(&aReply[38], 0); /* number of write speed performance descriptors */
708	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
709	rcReq = vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
710	break;
711	}
712	default:
713	rcReq = vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
714	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
715	break;
716	}
717	break;
718	case SCSI_PAGECONTROL_CHANGEABLE:
719	case SCSI_PAGECONTROL_DEFAULT:
720	rcReq = vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
721	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
722	break;
723	default:
724	case SCSI_PAGECONTROL_SAVED:
725	rcReq = vscsiLunReqSenseErrorSet(&pVScsiLunMmc->Core, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
726	SCSI_ASC_SAVING_PARAMETERS_NOT_SUPPORTED, 0x00);
727	break;
728	}
729
730	return rcReq;
731	}
732
733	/**
734	* Processes the GET EVENT STATUS NOTIFICATION SCSI request.
735	*
736	* @returns SCSI status code.
737	* @param pVScsiLunMmc The MMC LUN instance.
738	* @param pVScsiReq The VSCSI request.
739	* @param cbMaxTransfer The maximum transfer size.
740	*/
741	static int vscsiLunMmcGetEventStatusNotification(PVSCSILUNMMC pVScsiLunMmc, PVSCSIREQINT pVScsiReq,
742	uint16_t cbMaxTransfer)
743	{
744	uint32_t OldStatus;
745	uint32_t NewStatus;
746	uint8_t aReply[8];
747	RT_ZERO(aReply);
748
749	do
750	{
751	OldStatus = ASMAtomicReadU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus);
752	NewStatus = MMCEVENTSTATUSTYPE_UNCHANGED;
753
754	switch (OldStatus)
755	{
756	case MMCEVENTSTATUSTYPE_MEDIA_NEW:
757	/* mount */
758	vscsiH2BEU16(&aReply[0], 6);
759	aReply[2] = 0x04; /* media */
760	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
761	aReply[4] = 0x02; /* new medium */
762	aReply[5] = 0x02; /* medium present / door closed */
763	aReply[6] = 0x00;
764	aReply[7] = 0x00;
765	break;
766
767	case MMCEVENTSTATUSTYPE_MEDIA_CHANGED:
768	case MMCEVENTSTATUSTYPE_MEDIA_REMOVED:
769	/* umount */
770	vscsiH2BEU16(&aReply[0], 6);
771	aReply[2] = 0x04; /* media */
772	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
773	aReply[4] = 0x03; /* media removal */
774	aReply[5] = 0x00; /* medium absent / door closed */
775	aReply[6] = 0x00;
776	aReply[7] = 0x00;
777	if (OldStatus == MMCEVENTSTATUSTYPE_MEDIA_CHANGED)
778	NewStatus = MMCEVENTSTATUSTYPE_MEDIA_NEW;
779	break;
780
781	case MMCEVENTSTATUSTYPE_MEDIA_EJECT_REQUESTED: /* currently unused */
782	vscsiH2BEU16(&aReply[0], 6);
783	aReply[2] = 0x04; /* media */
784	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
785	aReply[4] = 0x01; /* eject requested (eject button pressed) */
786	aReply[5] = 0x02; /* medium present / door closed */
787	aReply[6] = 0x00;
788	aReply[7] = 0x00;
789	break;
790
791	case MMCEVENTSTATUSTYPE_UNCHANGED:
792	default:
793	vscsiH2BEU16(&aReply[0], 6);
794	aReply[2] = 0x01; /* operational change request / notification */
795	aReply[3] = 0x5e; /* supported = busy\|media\|external\|power\|operational */
796	aReply[4] = 0x00;
797	aReply[5] = 0x00;
798	aReply[6] = 0x00;
799	aReply[7] = 0x00;
800	break;
801	}
802	} while (!ASMAtomicCmpXchgU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus, NewStatus, OldStatus));
803
804	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(cbMaxTransfer, sizeof(aReply)));
805	return vscsiLunReqSenseOkSet(&pVScsiLunMmc->Core, pVScsiReq);
806	}
807
808	static DECLCALLBACK(int) vscsiLunMmcInit(PVSCSILUNINT pVScsiLun)
809	{
810	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
811	uint64_t cbDisk = 0;
812	int rc = VINF_SUCCESS;
813
814	ASMAtomicWriteU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus, MMCEVENTSTATUSTYPE_UNCHANGED);
815	pVScsiLunMmc->u32MediaTrackType = MMC_MEDIA_TYPE_UNKNOWN;
816	pVScsiLunMmc->cbSector = 2048; /* Default to 2K sectors. */
817	rc = vscsiLunMediumGetSize(pVScsiLun, &cbDisk);
818	if (RT_SUCCESS(rc))
819	pVScsiLunMmc->cSectors = cbDisk / pVScsiLunMmc->cbSector;
820
821	return rc;
822	}
823
824	static DECLCALLBACK(int) vscsiLunMmcDestroy(PVSCSILUNINT pVScsiLun)
825	{
826	RT_NOREF1(pVScsiLun);
827	return VINF_SUCCESS;
828	}
829
830	static DECLCALLBACK(int) vscsiLunMmcReqProcess(PVSCSILUNINT pVScsiLun, PVSCSIREQINT pVScsiReq)
831	{
832	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
833	VSCSIIOREQTXDIR enmTxDir = VSCSIIOREQTXDIR_INVALID;
834	uint64_t uLbaStart = 0;
835	uint32_t cSectorTransfer = 0;
836	int rc = VINF_SUCCESS;
837	int rcReq = SCSI_STATUS_OK;
838	unsigned uCmd = pVScsiReq->pbCDB[0];
839
840	/*
841	* GET CONFIGURATION, GET EVENT/STATUS NOTIFICATION, INQUIRY, and REQUEST SENSE commands
842	* operate even when a unit attention condition exists for initiator; every other command
843	* needs to report CHECK CONDITION in that case.
844	*/
845	if (!pVScsiLunMmc->Core.fReady && uCmd != SCSI_INQUIRY)
846	{
847	/*
848	* A note on media changes: As long as a medium is not present, the unit remains in
849	* the 'not ready' state. Technically the unit becomes 'ready' soon after a medium
850	* is inserted; however, we internally keep the 'not ready' state until we've had
851	* a chance to report the UNIT ATTENTION status indicating a media change.
852	*/
853	if (pVScsiLunMmc->Core.fMediaPresent)
854	{
855	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_UNIT_ATTENTION,
856	SCSI_ASC_MEDIUM_MAY_HAVE_CHANGED, 0x00);
857	pVScsiLunMmc->Core.fReady = true;
858	}
859	else
860	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_NOT_READY,
861	SCSI_ASC_MEDIUM_NOT_PRESENT, 0x00);
862	}
863	else
864	{
865	switch (uCmd)
866	{
867	case SCSI_TEST_UNIT_READY:
868	Assert(!pVScsiLunMmc->Core.fReady); /* Only should get here if LUN isn't ready. */
869	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_NOT_READY, SCSI_ASC_MEDIUM_NOT_PRESENT, 0x00);
870	break;
871
872	case SCSI_INQUIRY:
873	{
874	SCSIINQUIRYDATA ScsiInquiryReply;
875
876	memset(&ScsiInquiryReply, 0, sizeof(ScsiInquiryReply));
877
878	ScsiInquiryReply.cbAdditional = 31;
879	ScsiInquiryReply.fRMB = 1; /* Removable. */
880	ScsiInquiryReply.u5PeripheralDeviceType = SCSI_INQUIRY_DATA_PERIPHERAL_DEVICE_TYPE_CD_DVD;
881	ScsiInquiryReply.u3PeripheralQualifier = SCSI_INQUIRY_DATA_PERIPHERAL_QUALIFIER_CONNECTED;
882	ScsiInquiryReply.u3AnsiVersion = 0x05; /* MMC-?? compliant */
883	ScsiInquiryReply.fCmdQue = 1; /* Command queuing supported. */
884	ScsiInquiryReply.fWBus16 = 1;
885	vscsiPadStr(ScsiInquiryReply.achVendorId, "VBOX", 8);
886	vscsiPadStr(ScsiInquiryReply.achProductId, "CD-ROM", 16);
887	vscsiPadStr(ScsiInquiryReply.achProductLevel, "1.0", 4);
888
889	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, (uint8_t *)&ScsiInquiryReply, sizeof(SCSIINQUIRYDATA));
890	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
891	break;
892	}
893	case SCSI_READ_CAPACITY:
894	{
895	uint8_t aReply[8];
896	memset(aReply, 0, sizeof(aReply));
897
898	/*
899	* If sector size exceeds the maximum value that is
900	* able to be stored in 4 bytes return 0xffffffff in this field
901	*/
902	if (pVScsiLunMmc->cSectors > UINT32_C(0xffffffff))
903	vscsiH2BEU32(aReply, UINT32_C(0xffffffff));
904	else
905	vscsiH2BEU32(aReply, pVScsiLunMmc->cSectors - 1);
906	vscsiH2BEU32(&aReply[4], pVScsiLunMmc->cbSector);
907	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
908	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
909	break;
910	}
911	case SCSI_MODE_SENSE_6:
912	{
913	uint8_t uModePage = pVScsiReq->pbCDB[2] & 0x3f;
914	uint8_t aReply[24];
915	uint8_t *pu8ReplyPos;
916	bool fValid = false;
917
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 = vscsiBE2HU32(&pVScsiReq->pbCDB[7]);
949	rcReq = vscsiLunMmcModeSense10(pVScsiLunMmc, pVScsiReq, cbMax);
950	break;
951	}
952	case SCSI_SEEK_10:
953	{
954	uint32_t uLba = vscsiBE2HU32(&pVScsiReq->pbCDB[2]);
955	if (uLba > pVScsiLunMmc->cSectors)
956	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
957	SCSI_ASC_LOGICAL_BLOCK_OOR, 0x00);
958	else
959	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
960	break;
961	}
962	case SCSI_MODE_SELECT_6:
963	{
964	/** @todo implement!! */
965	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
966	break;
967	}
968	case SCSI_READ_6:
969	{
970	enmTxDir = VSCSIIOREQTXDIR_READ;
971	uLbaStart = ((uint64_t) pVScsiReq->pbCDB[3]
972	\| (pVScsiReq->pbCDB[2] << 8)
973	\| ((pVScsiReq->pbCDB[1] & 0x1f) << 16));
974	cSectorTransfer = pVScsiReq->pbCDB[4];
975	break;
976	}
977	case SCSI_READ_10:
978	{
979	enmTxDir = VSCSIIOREQTXDIR_READ;
980	uLbaStart = vscsiBE2HU32(&pVScsiReq->pbCDB[2]);
981	cSectorTransfer = vscsiBE2HU16(&pVScsiReq->pbCDB[7]);
982	break;
983	}
984	case SCSI_READ_12:
985	{
986	enmTxDir = VSCSIIOREQTXDIR_READ;
987	uLbaStart = vscsiBE2HU32(&pVScsiReq->pbCDB[2]);
988	cSectorTransfer = vscsiBE2HU32(&pVScsiReq->pbCDB[6]);
989	break;
990	}
991	case SCSI_READ_16:
992	{
993	enmTxDir = VSCSIIOREQTXDIR_READ;
994	uLbaStart = vscsiBE2HU64(&pVScsiReq->pbCDB[2]);
995	cSectorTransfer = vscsiBE2HU32(&pVScsiReq->pbCDB[10]);
996	break;
997	}
998	case SCSI_READ_BUFFER:
999	{
1000	uint8_t uDataMode = pVScsiReq->pbCDB[1] & 0x1f;
1001
1002	switch (uDataMode)
1003	{
1004	case 0x00:
1005	case 0x01:
1006	case 0x02:
1007	case 0x03:
1008	case 0x0a:
1009	break;
1010	case 0x0b:
1011	{
1012	uint8_t aReply[4];
1013	RT_ZERO(aReply);
1014
1015	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
1016	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1017	break;
1018	}
1019	case 0x1a:
1020	case 0x1c:
1021	break;
1022	default:
1023	AssertMsgFailed(("Invalid data mode\n"));
1024	}
1025	break;
1026	}
1027	case SCSI_VERIFY_10:
1028	case SCSI_START_STOP_UNIT:
1029	{
1030	/** @todo: Improve START STOP UNIT */
1031	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1032	break;
1033	}
1034	case SCSI_LOG_SENSE:
1035	{
1036	uint8_t uPageCode = pVScsiReq->pbCDB[2] & 0x3f;
1037	uint8_t uSubPageCode = pVScsiReq->pbCDB[3];
1038
1039	switch (uPageCode)
1040	{
1041	case 0x00:
1042	{
1043	if (uSubPageCode == 0)
1044	{
1045	uint8_t aReply[4];
1046
1047	aReply[0] = 0;
1048	aReply[1] = 0;
1049	aReply[2] = 0;
1050	aReply[3] = 0;
1051
1052	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
1053	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1054	break;
1055	}
1056	}
1057	default:
1058	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1059	}
1060	break;
1061	}
1062	case SCSI_SERVICE_ACTION_IN_16:
1063	{
1064	switch (pVScsiReq->pbCDB[1] & 0x1f)
1065	{
1066	case SCSI_SVC_ACTION_IN_READ_CAPACITY_16:
1067	{
1068	uint8_t aReply[32];
1069
1070	memset(aReply, 0, sizeof(aReply));
1071	vscsiH2BEU64(aReply, pVScsiLunMmc->cSectors - 1);
1072	vscsiH2BEU32(&aReply[8], pVScsiLunMmc->cbSector);
1073	/* Leave the rest 0 */
1074	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, sizeof(aReply));
1075	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1076	break;
1077	}
1078	default:
1079	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
1080	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00); /* Don't know if this is correct */
1081	}
1082	break;
1083	}
1084	case SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL:
1085	{
1086	pVScsiLunMmc->fLocked = pVScsiReq->pbCDB[4] & 1;
1087	vscsiLunMediumSetLock(pVScsiLun, pVScsiLunMmc->fLocked);
1088	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1089	break;
1090	}
1091	case SCSI_READ_TOC_PMA_ATIP:
1092	{
1093	uint8_t format;
1094	uint16_t cbMax;
1095	bool fMSF;
1096
1097	format = pVScsiReq->pbCDB[2] & 0x0f;
1098	cbMax = vscsiBE2HU16(&pVScsiReq->pbCDB[7]);
1099	fMSF = (pVScsiReq->pbCDB[1] >> 1) & 1;
1100	switch (format)
1101	{
1102	case 0x00:
1103	rcReq = mmcReadTOCNormal(pVScsiLun, pVScsiReq, cbMax, fMSF);
1104	break;
1105	case 0x01:
1106	rcReq = mmcReadTOCMulti(pVScsiLun, pVScsiReq, cbMax, fMSF);
1107	break;
1108	case 0x02:
1109	rcReq = mmcReadTOCRaw(pVScsiLun, pVScsiReq, cbMax, fMSF);
1110	break;
1111	default:
1112	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1113	}
1114	break;
1115	}
1116	case SCSI_GET_EVENT_STATUS_NOTIFICATION:
1117	{
1118	/* Only supporting polled mode at the moment. */
1119	if (pVScsiReq->pbCDB[1] & 0x1)
1120	{
1121	size_t cbMax = vscsiBE2HU16(&pVScsiReq->pbCDB[7]);
1122	rcReq = vscsiLunMmcGetEventStatusNotification(pVScsiLunMmc, pVScsiReq, cbMax);
1123	}
1124	else
1125	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1126	break;
1127	}
1128	case SCSI_MECHANISM_STATUS:
1129	{
1130	size_t cbMax = vscsiBE2HU16(&pVScsiReq->pbCDB[8]);
1131	uint8_t aReply[8];
1132
1133	vscsiH2BEU16(&aReply[0], 0);
1134	/* no current LBA */
1135	aReply[2] = 0;
1136	aReply[3] = 0;
1137	aReply[4] = 0;
1138	aReply[5] = 1;
1139	vscsiH2BEU16(&aReply[6], 0);
1140	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(sizeof(aReply), cbMax));
1141	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1142	break;
1143	}
1144	case SCSI_READ_DISC_INFORMATION:
1145	{
1146	uint8_t aReply[34];
1147	size_t cbMax = vscsiBE2HU16(&pVScsiReq->pbCDB[7]);
1148
1149	memset(aReply, '\0', sizeof(aReply));
1150	vscsiH2BEU16(&aReply[0], 32);
1151	aReply[2] = (0 << 4) \| (3 << 2) \| (2 << 0); /* not erasable, complete session, complete disc */
1152	aReply[3] = 1; /* number of first track */
1153	aReply[4] = 1; /* number of sessions (LSB) */
1154	aReply[5] = 1; /* first track number in last session (LSB) */
1155	aReply[6] = 1; /* last track number in last session (LSB) */
1156	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 */
1157	aReply[8] = 0; /* disc type = CD-ROM */
1158	aReply[9] = 0; /* number of sessions (MSB) */
1159	aReply[10] = 0; /* number of sessions (MSB) */
1160	aReply[11] = 0; /* number of sessions (MSB) */
1161	vscsiH2BEU32(&aReply[16], 0x00ffffff); /* last session lead-in start time is not available */
1162	vscsiH2BEU32(&aReply[20], 0x00ffffff); /* last possible start time for lead-out is not available */
1163	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(sizeof(aReply), cbMax));
1164	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1165	break;
1166	}
1167	case SCSI_READ_TRACK_INFORMATION:
1168	{
1169	/* Accept address/number type of 1 only, and only track 1 exists. */
1170	if ((pVScsiReq->pbCDB[1] & 0x03) != 1 \|\| vscsiBE2HU32(&pVScsiReq->pbCDB[2]) != 1)
1171	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST,
1172	SCSI_ASC_INV_FIELD_IN_CMD_PACKET, 0x00);
1173	else
1174	{
1175	size_t cbMax = vscsiBE2HU16(&pVScsiReq->pbCDB[7]);
1176	uint8_t aReply[36];
1177	RT_ZERO(aReply);
1178
1179	vscsiH2BEU16(&aReply[0], 34);
1180	aReply[2] = 1; /* track number (LSB) */
1181	aReply[3] = 1; /* session number (LSB) */
1182	aReply[5] = (0 << 5) \| (0 << 4) \| (4 << 0); /* not damaged, primary copy, data track */
1183	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 */
1184	aReply[7] = (0 << 1) \| (0 << 0); /* last recorded address not valid, next recordable address not valid */
1185	vscsiH2BEU32(&aReply[8], 0); /* track start address is 0 */
1186	vscsiH2BEU32(&aReply[24], pVScsiLunMmc->cSectors); /* track size */
1187	aReply[32] = 0; /* track number (MSB) */
1188	aReply[33] = 0; /* session number (MSB) */
1189
1190	RTSgBufCopyFromBuf(&pVScsiReq->SgBuf, aReply, RT_MIN(sizeof(aReply), cbMax));
1191	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1192	}
1193	break;
1194	}
1195	case SCSI_GET_CONFIGURATION:
1196	{
1197	size_t cbMax = vscsiBE2HU16(&pVScsiReq->pbCDB[7]);
1198	rcReq = vscsiLunMmcGetConfiguration(pVScsiLunMmc, pVScsiReq, cbMax);
1199	break;
1200	}
1201	case SCSI_READ_DVD_STRUCTURE:
1202	{
1203	size_t cbMax = vscsiBE2HU16(&pVScsiReq->pbCDB[8]);
1204	rcReq = vscsiLunMmcReadDvdStructure(pVScsiLunMmc, pVScsiReq, cbMax);
1205	break;
1206	}
1207	default:
1208	//AssertMsgFailed(("Command %#x [%s] not implemented\n", pVScsiReq->pbCDB[0], SCSICmdText(pVScsiReq->pbCDB[0])));
1209	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_ILLEGAL_OPCODE, 0x00);
1210	}
1211	}
1212
1213	if (enmTxDir != VSCSIIOREQTXDIR_INVALID)
1214	{
1215	LogFlow(("%s: uLbaStart=%llu cSectorTransfer=%u\n",
1216	__FUNCTION__, uLbaStart, cSectorTransfer));
1217
1218	if (RT_UNLIKELY(uLbaStart + cSectorTransfer > pVScsiLunMmc->cSectors))
1219	{
1220	rcReq = vscsiLunReqSenseErrorSet(pVScsiLun, pVScsiReq, SCSI_SENSE_ILLEGAL_REQUEST, SCSI_ASC_LOGICAL_BLOCK_OOR, 0x00);
1221	vscsiDeviceReqComplete(pVScsiLun->pVScsiDevice, pVScsiReq, rcReq, false, VINF_SUCCESS);
1222	}
1223	else if (!cSectorTransfer)
1224	{
1225	/* A 0 transfer length is not an error. */
1226	rcReq = vscsiLunReqSenseOkSet(pVScsiLun, pVScsiReq);
1227	vscsiDeviceReqComplete(pVScsiLun->pVScsiDevice, pVScsiReq, rcReq, false, VINF_SUCCESS);
1228	}
1229	else
1230	{
1231	/* Enqueue new I/O request */
1232	rc = vscsiIoReqTransferEnqueue(pVScsiLun, pVScsiReq, enmTxDir,
1233	uLbaStart * pVScsiLunMmc->cbSector,
1234	cSectorTransfer * pVScsiLunMmc->cbSector);
1235	}
1236	}
1237	else /* Request completed */
1238	vscsiDeviceReqComplete(pVScsiLun->pVScsiDevice, pVScsiReq, rcReq, false, VINF_SUCCESS);
1239
1240	return rc;
1241	}
1242
1243	/** @interface_method_impl{VSCSILUNDESC,pfnVScsiLunMediumInserted} */
1244	static DECLCALLBACK(int) vscsiLunMmcMediumInserted(PVSCSILUNINT pVScsiLun)
1245	{
1246	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
1247
1248	uint32_t OldStatus, NewStatus;
1249	do
1250	{
1251	OldStatus = ASMAtomicReadU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus);
1252	switch (OldStatus)
1253	{
1254	case MMCEVENTSTATUSTYPE_MEDIA_CHANGED:
1255	case MMCEVENTSTATUSTYPE_MEDIA_REMOVED:
1256	/* no change, we will send "medium removed" + "medium inserted" */
1257	NewStatus = MMCEVENTSTATUSTYPE_MEDIA_CHANGED;
1258	break;
1259	default:
1260	NewStatus = MMCEVENTSTATUSTYPE_MEDIA_NEW;
1261	break;
1262	}
1263	} while (!ASMAtomicCmpXchgU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus,
1264	NewStatus, OldStatus));
1265
1266	ASMAtomicXchgU32(&pVScsiLunMmc->u32MediaTrackType, MMC_MEDIA_TYPE_UNKNOWN);
1267	return VINF_SUCCESS;
1268	}
1269
1270	/** @interface_method_impl{VSCSILUNDESC,pfnVScsiLunMediumRemoved} */
1271	static DECLCALLBACK(int) vscsiLunMmcMediumRemoved(PVSCSILUNINT pVScsiLun)
1272	{
1273	PVSCSILUNMMC pVScsiLunMmc = (PVSCSILUNMMC)pVScsiLun;
1274
1275	ASMAtomicWriteU32((volatile uint32_t *)&pVScsiLunMmc->MediaEventStatus, MMCEVENTSTATUSTYPE_MEDIA_REMOVED);
1276	ASMAtomicXchgU32(&pVScsiLunMmc->u32MediaTrackType, MMC_MEDIA_TYPE_NO_DISC);
1277	return VINF_SUCCESS;
1278	}
1279
1280
1281	VSCSILUNDESC g_VScsiLunTypeMmc =
1282	{
1283	/** enmLunType */
1284	VSCSILUNTYPE_MMC,
1285	/** pcszDescName */
1286	"MMC",
1287	/** cbLun */
1288	sizeof(VSCSILUNMMC),
1289	/** pfnVScsiLunInit */
1290	vscsiLunMmcInit,
1291	/** pfnVScsiLunDestroy */
1292	vscsiLunMmcDestroy,
1293	/** pfnVScsiLunReqProcess */
1294	vscsiLunMmcReqProcess,
1295	/** pfnVScsiLunMediumInserted */
1296	vscsiLunMmcMediumInserted,
1297	/** pfnVScsiLunMediumRemoved */
1298	vscsiLunMmcMediumRemoved
1299	};

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source: vbox/trunk/src/VBox/Devices/Storage/VSCSI/VSCSILunMmc.cpp@ 64064

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