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usbcalls.c

Last change on this file was 73066, checked in by vboxsync, 6 years ago
VBoxUSB/os2: use NO_ERROR instead of literal 0 in previous.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 34.6 KB

Line
1	#define INCL_DOSERRORS
2	#define INCL_DOSMEMMGR
3	#define INCL_DOSSEMAPHORES
4	#define INCL_DOSDEVICES
5	#define INCL_DOSDEVIOCTL
6	#define INCL_DOSMODULEMGR
7	#include <os2.h>
8
9	#if !defined(__GNUC__) \|\| defined(STATIC_USBCALLS)
10	#include <string.h>
11	#else
12	#define memcpy __builtin_memcpy
13	#endif
14	#include <stdlib.h>
15	#include <stdio.h>
16
17	#define LOG_GROUP LOG_GROUP_DRV_USBPROXY
18	#include <VBox/log.h>
19
20	#ifdef __GNUC__
21	# define APIEXPORT __declspec(dllexport)
22	#else
23	# define APIEXPORT
24	#endif
25
26	#ifndef ERROR_USER_DEFINED_BASE
27	/#define ERROR_USER_DEFINED_BASE 0xFF00 /
28
29	#define ERROR_I24_WRITE_PROTECT 0
30	#define ERROR_I24_BAD_UNIT 1
31	#define ERROR_I24_NOT_READY 2
32	#define ERROR_I24_BAD_COMMAND 3
33	#define ERROR_I24_CRC 4
34	#define ERROR_I24_BAD_LENGTH 5
35	#define ERROR_I24_SEEK 6
36	#define ERROR_I24_NOT_DOS_DISK 7
37	#define ERROR_I24_SECTOR_NOT_FOUND 8
38	#define ERROR_I24_OUT_OF_PAPER 9
39	#define ERROR_I24_WRITE_FAULT 10
40	#define ERROR_I24_READ_FAULT 11
41	#define ERROR_I24_GEN_FAILURE 12
42	#define ERROR_I24_DISK_CHANGE 13
43	#define ERROR_I24_WRONG_DISK 15
44	#define ERROR_I24_UNCERTAIN_MEDIA 16
45	#define ERROR_I24_CHAR_CALL_INTERRUPTED 17
46	#define ERROR_I24_NO_MONITOR_SUPPORT 18
47	#define ERROR_I24_INVALID_PARAMETER 19
48	#define ERROR_I24_DEVICE_IN_USE 20
49	#define ERROR_I24_QUIET_INIT_FAIL 21
50	#endif
51
52	#include "usbcalls.h"
53
54	#define IOCAT_USBRES 0x000000A0 /* USB Resource device control */
55	#define IOCTLF_NUMDEVICE 0x00000031 /* Get Number of plugged in Devices */
56	#define IOCTLF_GETINFO 0x00000032 /* Get Info About a device */
57	#define IOCTLF_AQUIREDEVICE 0x00000033
58	#define IOCTLF_RELEASEDEVICE 0x00000034
59	#define IOCTLF_GETSTRING 0x00000035
60	#define IOCTLF_SENDCONTROLURB 0x00000036
61	#define IOCTLF_SENDBULKURB 0x00000037 /* Send */
62	#define IOCTLF_START_IRQ_PROC 0x00000038 /* Start IRQ polling in a buffer */
63	#define IOCTLF_GETDEVINFO 0x00000039 /* Get information about device */
64	#define IOCTLF_STOP_IRQ_PROC 0x0000003A /* Stop IRQ Polling */
65	#define IOCTLF_START_ISO_PROC 0x0000003B /* Start ISO buffering in a Ringbuffer */
66	#define IOCTLF_STOP_ISO_PROC 0x0000003C /* Stop ISO buffering */
67	#define IOCTLF_CANCEL_IORB 0x0000003D /* Abort an IORB; */
68	#define IOCTLF_SELECT_BULKPIPE 0x0000003E /* Select which Bulk endpoints can be used via Read/Write */
69	#define IOCTLF_SENDIRQURB 0x0000003F /* Start IRQ polling in a buffer */
70	#define IOCTLF_FIXUPDEVUCE 0x00000040 /* Fixup USB device configuration data */
71	#define IOCTLF_REG_STATUSSEM 0x00000041 /* Register Semaphore for general Statuschange */
72	#define IOCTLF_DEREG_STATUSSEM 0x00000042 /* Deregister Semaphore */
73	#define IOCTLF_REG_DEVICESEM 0x00000043 /* Register Semaphore for a vendor&deviceID */
74	#define IOCTLF_DEREG_DEVICESEM 0x00000044 /* Deregister Semaphore */
75
76
77	#define NOTIFY_FREE 0
78	#define NOTIFY_CHANGE 1
79	#define NOTIFY_DEVICE 2
80	#define MAX_NOTIFICATIONS 256
81
82	#pragma pack(1)
83
84	typedef struct
85	{
86	HEV hDeviceAdded;
87	HEV hDeviceRemoved;
88	USHORT usFlags;
89	USHORT usVendor;
90	USHORT usProduct;
91	USHORT usBCDDevice;
92	} NOTIFYENTRY, *PNOTIFYENTRY;
93
94	#define DEV_SEM_ADD 0x00000001
95	#define DEV_SEM_REMOVE 0x00000002
96	#define DEV_SEM_MASK 0x00000003
97	#define DEV_SEM_VENDORID 0x00000004
98	#define DEV_SEM_PRODUCTID 0x00000008
99	#define DEV_SEM_BCDDEVICE 0x00000010
100
101	typedef struct{
102	ULONG ulSize;
103	ULONG ulCaps;
104	ULONG ulSemDeviceAdd;
105	ULONG ulSemDeviceRemove;
106	} STATUSEVENTSET, * PSTATUSEVENTSET;
107
108
109	typedef struct{
110	ULONG ulSize;
111	ULONG ulCaps;
112	ULONG ulSemDeviceAdd;
113	ULONG ulSemDeviceRemove;
114	USHORT usVendorID;
115	USHORT usProductID;
116	USHORT usBCDDevice;
117	USHORT usStatus;
118	} DEVEVENTSET, * PDEVEVENTSET;
119
120	typedef struct
121	{
122	USHORT usVendorID;
123	USHORT usProductID;
124	USHORT usBCDDevice;
125	USHORT usDeviceNumber; /* Get the usDeviceNumber device in the system fi. if 2 acquire the 2nd device
126	0 means first not acquired device. */
127	} AQUIREDEV, *PAQUIREDEV;
128
129	typedef struct
130	{
131	UCHAR bRequestType;
132	UCHAR bRequest;
133	USHORT wValue;
134	USHORT wIndex;
135	USHORT wLength;
136	ULONG ulTimeout; /* in milliseconds */
137	} SETUPPACKET, *PSETUPPACKET;
138
139	typedef struct
140	{
141	ULONG ulHandle;
142	UCHAR bRequestType;
143	UCHAR bRequest;
144	USHORT wValue;
145	USHORT wIndex;
146	USHORT wLength;
147	ULONG ulTimeout; /* in milliseconds */
148	USHORT usStatus;
149	} USBCALLS_CTRL_REQ, *PUSBCALLS_CTRL_REQ;
150
151	typedef struct
152	{
153	ULONG ulDevHandle;
154	UCHAR ucEndpoint;
155	UCHAR ucAltInterface;
156	USHORT usStatus;
157	ULONG ulEvent;
158	ULONG ulID;
159	} USBCALLS_ISO_START, NPUSBCALLS_ISO_START, FAR PUSBCALLS_ISO_START,
160	USBCALLS_IRQ_START, NPUSBCALLS_IRQ_START, FAR PUSBCALLS_IRQ_START,
161	USBCALLS_CANCEL_REQ, NPUSBCALLS_CANCEL_REQ, FAR PUSBCALLS_CANCEL_REQ;
162
163	#define ISO_DIRMASK 0x80
164	typedef struct
165	{
166	ULONG hSemAccess; /* Synchronise access to the Pos values */
167	ULONG hDevice;
168	USHORT usPosWrite;
169	USHORT usPosRead;
170	USHORT usBufSize;
171	UCHAR ucEndpoint;
172	UCHAR ucAltInterface;
173	UCHAR ucBuffer[16*1023];
174	} ISORINGBUFFER, *PISORINGBUFFER;
175
176	typedef USBCALLS_ISO_START USBCALLS_ISO_STOP, * NPUSBCALLS_ISO_STOP, FAR *PUSBCALLS_ISO_STOP;
177	typedef USBCALLS_ISO_START USBCALLS_IRQ_STOP, * NPUSBCALLS_IRQ_STOP, FAR *PUSBCALLS_IRQ_STOP;
178
179	#define USB_TRANSFER_FULL_SIZE 0x01
180
181	typedef struct
182	{
183	ULONG ulDevHandle;
184	UCHAR ucEndpoint;
185	UCHAR ucAltInterface;
186	USHORT usStatus;
187	ULONG ulEvent;
188	/* ULONG ulID; - yeah, right */
189	ULONG ulTimeout;
190	USHORT usDataProcessed;
191	USHORT usDataRemain;
192	USHORT usFlags;
193	} USBCALLS_BULK_REQ, *PUSBCALLS_BULK_REQ;
194
195	typedef struct
196	{
197	ULONG ulDevHandle;
198	UCHAR ucEndpoint;
199	UCHAR ucAltInterface;
200	USHORT usStatus;
201	ULONG ulEvent;
202	ULONG ulID;
203	ULONG ulTimeout;
204	USHORT usDataLen;
205	} LIBUSB_IRQ_REQ, NPLIBUSB_IRQ_REQ, FAR PLIBUSB_IRQ_REQ;
206
207	typedef struct
208	{
209	ULONG ulDevHandle;
210	UCHAR ucConfiguration;
211	UCHAR ucAltInterface;
212	USHORT usStatus;
213	} LIBUSB_FIXUP, NPLIBUSB_FIXUP, FAR PLIBUSB_FIXUP;
214
215	#pragma pack()
216
217	/******************************************************************************/
218
219	HFILE g_hUSBDrv;
220	ULONG g_cInit;
221	ULONG g_ulFreeNotifys;
222	HMTX g_hSemNotifytable;
223	NOTIFYENTRY g_Notifications[MAX_NOTIFICATIONS];
224
225	HMTX g_hSemRingBuffers;
226	PISORINGBUFFER g_pIsoRingBuffers;
227	ULONG g_ulNumIsoRingBuffers;
228
229	APIEXPORT APIRET APIENTRY
230	InitUsbCalls(void)
231	{
232	int i;
233	ULONG ulAction;
234	APIRET rc;
235
236	if (++g_cInit > 1)
237	return NO_ERROR;
238
239	rc = DosOpen( (PCSZ)"USBRESM$",
240	&g_hUSBDrv,
241	&ulAction,
242	0,
243	FILE_NORMAL,
244	OPEN_ACTION_OPEN_IF_EXISTS,
245	OPEN_ACCESS_READWRITE \|
246	OPEN_FLAGS_NOINHERIT \|
247	OPEN_SHARE_DENYNONE,
248	0 );
249	if(rc)
250	{
251	g_hUSBDrv = 0;
252	g_cInit = 0;
253
254	}
255	else
256	{
257	/* @@ToDO Add EnvVar or INI for dynamically setting the number */
258	g_ulNumIsoRingBuffers = 8;
259	for(i=0;i<MAX_NOTIFICATIONS;i++)
260	{
261	g_Notifications[i].usFlags = NOTIFY_FREE;
262	g_Notifications[i].hDeviceAdded = 0;
263	g_Notifications[i].hDeviceRemoved = 0;
264	g_Notifications[i].usVendor = 0;
265	g_Notifications[i].usProduct = 0;
266	g_Notifications[i].usBCDDevice = 0;
267	}
268	rc = DosAllocMem( (PPVOID)&g_pIsoRingBuffers,
269	g_ulNumIsoRingBuffers * sizeof(ISORINGBUFFER),
270	PAG_WRITE \| PAG_COMMIT \| OBJ_TILE);
271	if(!rc)
272	{
273	PISORINGBUFFER pIter = g_pIsoRingBuffers;
274	for(i=0;i< g_ulNumIsoRingBuffers;i++,pIter++)
275	{
276	pIter->hDevice = 0;
277	pIter->hSemAccess = 0; /* Synchronise access to the Pos values */
278	pIter->usPosWrite = 0;
279	pIter->usPosRead = 0;
280	pIter->usBufSize = 16*1023;
281	pIter->ucEndpoint = 0;
282	pIter->ucAltInterface = 0;
283	/pIter->ucBuffer /
284	}
285	rc=DosCreateMutexSem(NULL,&g_hSemRingBuffers,DC_SEM_SHARED,FALSE);
286	if(!rc)
287	{
288	rc=DosCreateMutexSem(NULL,&g_hSemNotifytable,DC_SEM_SHARED,FALSE);
289	if(rc)
290	{
291	DosCloseMutexSem(g_hSemRingBuffers);
292	DosFreeMem(g_pIsoRingBuffers);
293	}
294	}
295	else
296	{
297	DosFreeMem(g_pIsoRingBuffers);
298	}
299	}
300
301	if(rc)
302	{
303	DosClose(g_hUSBDrv);
304	g_hUSBDrv = 0;
305	g_cInit = 0;
306	}
307	}
308	return g_cInit ? NO_ERROR : rc ? rc : ERROR_GEN_FAILURE;
309	}
310
311	APIEXPORT APIRET APIENTRY
312	TermUsbCalls(void)
313	{
314	if (!g_cInit)
315	return ERROR_GEN_FAILURE;
316	if(!--g_cInit)
317	{
318	int i;
319	for(i=0;i<MAX_NOTIFICATIONS;i++)
320	if( g_Notifications[i].usFlags != NOTIFY_FREE);
321	UsbDeregisterNotification((USBNOTIFY)(&g_Notifications[i]));
322
323	DosClose(g_hUSBDrv);
324	g_hUSBDrv = NULLHANDLE;
325
326	if (g_pIsoRingBuffers)
327	DosFreeMem(g_pIsoRingBuffers);
328
329	DosCloseMutexSem(g_hSemRingBuffers);
330	g_hSemRingBuffers = NULLHANDLE;
331	DosCloseMutexSem(g_hSemNotifytable);
332	g_hSemNotifytable = NULLHANDLE;
333	}
334	return NO_ERROR;
335	}
336
337
338	#ifdef VBOX /* complete wast of time */
339	# define IsBadReadPointer(pBase, ulSize) (FALSE)
340	# define IsBadWritePointer(pBase, ulSize) (FALSE)
341	#else
342	static BOOL IsBadReadPointer(PVOID pBase, ULONG ulSize)
343	{
344	APIRET rc;
345	ULONG ulFlags;
346	rc = DosQueryMem(pBase, &ulSize, &ulFlags);
347
348	return rc!=0?TRUE:(ulFlags&PAG_READ)&&(ulFlags&PAG_COMMIT)?FALSE:TRUE;
349	}
350
351	static BOOL IsBadWritePointer(PVOID pBase, ULONG ulSize)
352	{
353	APIRET rc;
354	ULONG ulFlags;
355	rc = DosQueryMem(pBase, &ulSize, &ulFlags);
356
357	return rc!=0?TRUE:((ulFlags&PAG_WRITE)==PAG_WRITE&&(ulFlags&PAG_COMMIT)==PAG_COMMIT)?FALSE:TRUE;
358	}
359	#endif
360
361	APIEXPORT APIRET APIENTRY
362	UsbQueryNumberDevices(ULONG *pulNumDev)
363	{
364	APIRET rc;
365	ULONG ulLength;
366	if(!g_cInit)
367	return USB_NOT_INIT;
368
369	if( IsBadWritePointer(pulNumDev,sizeof(ULONG)) )
370	return ERROR_INVALID_PARAMETER;
371	ulLength=sizeof(ULONG);
372	*pulNumDev = 0;
373	rc = DosDevIOCtl( g_hUSBDrv,
374	IOCAT_USBRES, IOCTLF_NUMDEVICE,
375	NULL, 0, NULL,
376	pulNumDev, ulLength, &ulLength);
377	return rc;
378	}
379
380	APIEXPORT APIRET APIENTRY
381	UsbQueryDeviceReport(ULONG ulDevNumber, ULONG *pulBufLen, PVOID pData)
382	{
383	APIRET rc;
384	ULONG ulParmLen;
385
386	if(!g_cInit)
387	return USB_NOT_INIT;
388
389	if( IsBadWritePointer(pulBufLen, sizeof(ULONG)) )
390	return ERROR_INVALID_PARAMETER;
391
392	if( pData!=NULL && IsBadWritePointer(pData,*pulBufLen) )
393	return ERROR_INVALID_PARAMETER;
394	if(pData==NULL)
395	*pulBufLen = 0;
396	ulParmLen = sizeof(ulDevNumber);
397	rc = DosDevIOCtl( g_hUSBDrv,
398	IOCAT_USBRES, IOCTLF_GETINFO,
399	(PVOID)&ulDevNumber, ulParmLen, &ulParmLen,
400	pData, *pulBufLen, pulBufLen);
401	return rc;
402	}
403
404	APIEXPORT APIRET APIENTRY
405	UsbRegisterChangeNotification( PUSBNOTIFY pNotifyID,
406	HEV hDeviceAdded,
407	HEV hDeviceRemoved)
408	{
409	APIRET rc;
410	int i;
411	STATUSEVENTSET EventSet;
412	ULONG ulSize;
413
414	if(!g_cInit)
415	return USB_NOT_INIT;
416
417	if( IsBadWritePointer(pNotifyID, sizeof(ULONG)) \|\|
418	(hDeviceAdded==0 && hDeviceRemoved==0) )
419	return ERROR_INVALID_PARAMETER;
420
421	ulSize = sizeof(EventSet);
422	EventSet.ulSize = ulSize;
423	EventSet.ulCaps = 0;
424
425	if(hDeviceAdded!=0)
426	{
427	ULONG ulCnt;
428	rc = DosQueryEventSem(hDeviceAdded,&ulCnt);
429	if(rc)
430	return rc;
431	EventSet.ulCaps \|= DEV_SEM_ADD;
432	EventSet.ulSemDeviceAdd = hDeviceAdded;
433	}
434
435	if(hDeviceRemoved!=0)
436	{
437	ULONG ulCnt;
438	rc = DosQueryEventSem(hDeviceRemoved,&ulCnt);
439	if(rc)
440	return rc;
441	EventSet.ulCaps \|= DEV_SEM_REMOVE;
442	EventSet.ulSemDeviceRemove = hDeviceRemoved;
443	}
444
445	rc = DosRequestMutexSem(g_hSemNotifytable,SEM_INDEFINITE_WAIT);
446	if(rc)
447	return rc;
448
449	for(i=0;i<MAX_NOTIFICATIONS;i++)
450	{
451	if( g_Notifications[i].usFlags == NOTIFY_FREE)
452	{
453	g_Notifications[i].usFlags = NOTIFY_CHANGE;
454	g_Notifications[i].hDeviceAdded = hDeviceAdded;
455	g_Notifications[i].hDeviceRemoved = hDeviceRemoved;
456	g_Notifications[i].usVendor = 0;
457	g_Notifications[i].usProduct = 0;
458	g_Notifications[i].usBCDDevice = 0;
459	break;
460	}
461	}
462	DosReleaseMutexSem(g_hSemNotifytable);
463	if(i==MAX_NOTIFICATIONS)
464	return USB_ERROR_NO_MORE_NOTIFICATIONS;
465
466	/* @@ToDo come up with a better way to generate IDs */
467	*pNotifyID = (USBNOTIFY) (&g_Notifications[i]);
468	rc = DosDevIOCtl( g_hUSBDrv,
469	IOCAT_USBRES, IOCTLF_REG_STATUSSEM,
470	NULL, 0, NULL,
471	&EventSet,ulSize, &ulSize);
472	if(rc)
473	{
474	g_Notifications[i].usFlags = NOTIFY_FREE;
475	*pNotifyID = 0;
476	}
477	return rc;
478	}
479
480	APIEXPORT APIRET APIENTRY
481	UsbRegisterDeviceNotification( PUSBNOTIFY pNotifyID,
482	HEV hDeviceAdded,
483	HEV hDeviceRemoved,
484	USHORT usVendor,
485	USHORT usProduct,
486	USHORT usBCDVersion)
487	{
488	DEVEVENTSET EventSet;
489	ULONG ulCnt,ulSize;
490	int i;
491	APIRET rc;
492
493	if(!g_cInit)
494	return USB_NOT_INIT;
495
496	if( IsBadWritePointer(pNotifyID, sizeof(ULONG)) \|\|
497	hDeviceAdded==0 \|\| hDeviceRemoved==0 \|\|
498	usVendor == 0 \|\| usVendor == 0xFFFF \|\|
499	usProduct == 0 \|\| usProduct == 0xFFFF )
500	return ERROR_INVALID_PARAMETER;
501
502
503	rc = DosQueryEventSem(hDeviceAdded,&ulCnt);
504	if(rc)
505	return rc;
506	rc = DosQueryEventSem(hDeviceRemoved,&ulCnt);
507	if(rc)
508	return rc;
509
510	ulSize = sizeof(EventSet);
511	EventSet.ulSize = ulSize;
512	EventSet.ulCaps = DEV_SEM_ADD \| DEV_SEM_REMOVE \|
513	DEV_SEM_VENDORID \| DEV_SEM_PRODUCTID \|
514	DEV_SEM_BCDDEVICE ;
515	EventSet.ulSemDeviceAdd = hDeviceAdded;
516	EventSet.ulSemDeviceRemove = hDeviceRemoved;
517	EventSet.usVendorID = usVendor;
518	EventSet.usProductID = usProduct;
519	EventSet.usBCDDevice = usBCDVersion;
520	EventSet.usStatus = 0;
521
522	rc = DosRequestMutexSem(g_hSemNotifytable,SEM_INDEFINITE_WAIT);
523
524	if(rc)
525	return rc;
526
527	for(i=0;i<MAX_NOTIFICATIONS;i++)
528	{
529	if( g_Notifications[i].usFlags == NOTIFY_FREE)
530	{
531	g_Notifications[i].usFlags = NOTIFY_DEVICE;
532	g_Notifications[i].hDeviceAdded = hDeviceAdded;
533	g_Notifications[i].hDeviceRemoved = hDeviceRemoved;
534	g_Notifications[i].usVendor = usVendor;
535	g_Notifications[i].usProduct = usProduct;
536	g_Notifications[i].usBCDDevice = usBCDVersion;
537	break;
538	}
539	}
540	DosReleaseMutexSem(g_hSemNotifytable);
541	if(i==MAX_NOTIFICATIONS)
542	return USB_ERROR_NO_MORE_NOTIFICATIONS;
543
544	/* @@ToDo come up with a better way to generate IDs */
545	*pNotifyID = (USBNOTIFY) (&g_Notifications[i]);
546	rc = DosDevIOCtl( g_hUSBDrv,
547	IOCAT_USBRES, IOCTLF_REG_DEVICESEM,
548	NULL, 0, NULL,
549	&EventSet,ulSize, &ulSize);
550	if(rc)
551	{
552	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_INVALID_PARAMETER) )
553	rc= ERROR_INVALID_PARAMETER;
554	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_GEN_FAILURE) )
555	rc= EventSet.usStatus;
556
557	g_Notifications[i].usFlags = NOTIFY_FREE;
558	*pNotifyID = 0;
559	}
560	return rc;
561	}
562
563	APIEXPORT APIRET APIENTRY
564	UsbDeregisterNotification( USBNOTIFY NotifyID )
565	{
566	DEVEVENTSET EventSet;
567	USBNOTIFY MinID,MaxID;
568	ULONG Index, ulFunction, ulSize;
569	APIRET rc;
570
571	if(!g_cInit)
572	return USB_NOT_INIT;
573
574	MinID = (USBNOTIFY) (&g_Notifications[0]);
575	MaxID = (USBNOTIFY) (&g_Notifications[MAX_NOTIFICATIONS-1]);
576
577	if(NotifyID<MinID \|\| NotifyID>MaxID)
578	return ERROR_INVALID_PARAMETER;
579
580	Index = NotifyID - MinID;
581
582	if(Index % sizeof(NOTIFYENTRY))
583	return ERROR_INVALID_PARAMETER;
584
585	Index /= sizeof(NOTIFYENTRY);
586
587	rc = DosRequestMutexSem(g_hSemNotifytable,SEM_INDEFINITE_WAIT);
588
589	switch(g_Notifications[Index].usFlags)
590	{
591	case NOTIFY_FREE:
592	DosReleaseMutexSem(g_hSemNotifytable);
593	return ERROR_INVALID_PARAMETER;
594	case NOTIFY_CHANGE:
595	ulFunction = IOCTLF_DEREG_STATUSSEM;
596	ulSize = sizeof(STATUSEVENTSET);
597	EventSet.ulSize = ulSize;
598	EventSet.ulCaps = DEV_SEM_ADD \| DEV_SEM_REMOVE;
599	EventSet.ulSemDeviceAdd = g_Notifications[Index].hDeviceAdded;
600	EventSet.ulSemDeviceRemove = g_Notifications[Index].hDeviceRemoved;
601	break;
602	case NOTIFY_DEVICE:
603	ulFunction = IOCTLF_DEREG_DEVICESEM;
604	ulSize = sizeof(DEVEVENTSET);
605	EventSet.ulSize = ulSize;
606	EventSet.ulCaps = DEV_SEM_ADD \| DEV_SEM_REMOVE \|
607	DEV_SEM_VENDORID \| DEV_SEM_PRODUCTID \|
608	DEV_SEM_BCDDEVICE ;
609	EventSet.ulSemDeviceAdd = g_Notifications[Index].hDeviceAdded;
610	EventSet.ulSemDeviceRemove = g_Notifications[Index].hDeviceRemoved;
611	EventSet.usVendorID = g_Notifications[Index].usVendor;
612	EventSet.usProductID = g_Notifications[Index].usProduct;
613	EventSet.usBCDDevice = g_Notifications[Index].usBCDDevice;
614	EventSet.usStatus = 0;
615	break;
616	default:
617	DosReleaseMutexSem(g_hSemNotifytable);
618	return ERROR_GEN_FAILURE;
619	}
620
621	rc = DosDevIOCtl( g_hUSBDrv,
622	IOCAT_USBRES, ulFunction,
623	NULL, 0, NULL,
624	&EventSet,ulSize, &ulSize);
625	if(0==rc)
626	{
627	g_Notifications[Index].usFlags = NOTIFY_FREE;
628	g_Notifications[Index].hDeviceAdded = 0;
629	g_Notifications[Index].hDeviceRemoved = 0;
630	g_Notifications[Index].usVendor = 0;
631	g_Notifications[Index].usProduct = 0;
632	g_Notifications[Index].usBCDDevice = 0;
633	} else
634	{
635	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_INVALID_PARAMETER) )
636	rc= ERROR_INVALID_PARAMETER;
637	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_GEN_FAILURE) )
638	rc= EventSet.usStatus;
639	}
640	DosReleaseMutexSem(g_hSemNotifytable);
641
642	return rc;
643	}
644
645	APIEXPORT APIRET APIENTRY
646	UsbOpen( PUSBHANDLE pHandle,
647	USHORT usVendor,
648	USHORT usProduct,
649	USHORT usBCDDevice,
650	USHORT usEnumDevice)
651	{
652	ULONG ulCat, ulFunc;
653	ULONG ulParmLen, ulDataLen;
654	AQUIREDEV Aquire;
655	APIRET rc;
656
657	if(!g_cInit)
658	return USB_NOT_INIT;
659	if(IsBadWritePointer(pHandle,sizeof(USBHANDLE)) )
660	return ERROR_INVALID_PARAMETER;
661
662	Aquire.usVendorID = usVendor;
663	Aquire.usProductID = usProduct;
664	Aquire.usBCDDevice = usBCDDevice;
665	Aquire.usDeviceNumber = usEnumDevice;
666	ulCat = 0xA0;
667	ulFunc = 0x33;
668	ulParmLen = sizeof(Aquire);
669	ulDataLen = sizeof(USBHANDLE);
670	rc = DosDevIOCtl( g_hUSBDrv,
671	ulCat,ulFunc, /IOCAT_USBRES, IOCTLF_AQUIREDEVICE, /
672	&Aquire, ulParmLen, &ulParmLen,
673	pHandle, ulDataLen, &ulDataLen);
674
675	/* @@ ToDO maybe gether some info about device here (endpoints etc for safety checks) */
676	return rc;
677
678	}
679
680	APIEXPORT APIRET APIENTRY
681	UsbClose( USBHANDLE Handle)
682	{
683	APIRET rc;
684	ULONG ulDataLen,ulParmLen;
685	if(!g_cInit)
686	return USB_NOT_INIT;
687
688	ulParmLen = sizeof(USBHANDLE);
689	ulDataLen = 0;
690
691	rc = DosDevIOCtl( g_hUSBDrv,
692	IOCAT_USBRES, IOCTLF_RELEASEDEVICE,
693	(PVOID)&Handle, ulParmLen, &ulParmLen,
694	NULL, ulDataLen, &ulDataLen);
695	return rc;
696	}
697
698	APIEXPORT APIRET APIENTRY
699	UsbCtrlMessage( USBHANDLE Handle,
700	UCHAR ucRequestType,
701	UCHAR ucRequest,
702	USHORT usValue,
703	USHORT usIndex,
704	USHORT usLength,
705	PVOID pData,
706	ULONG ulTimeout)
707	{
708	APIRET rc;
709	USBCALLS_CTRL_REQ CtrlRequest;
710	ULONG ulParmLen, ulDataLen;
711
712	if(!g_cInit)
713	return USB_NOT_INIT;
714
715	ulParmLen = sizeof(USBCALLS_CTRL_REQ);
716	CtrlRequest.ulHandle = Handle;
717	CtrlRequest.bRequestType = ucRequestType;
718	CtrlRequest.bRequest = ucRequest;
719	CtrlRequest.wValue = usValue;
720	CtrlRequest.wIndex = usIndex;
721	CtrlRequest.wLength = usLength;
722	CtrlRequest.ulTimeout = ulTimeout;
723	ulDataLen = usLength;
724
725	rc = DosDevIOCtl( g_hUSBDrv,
726	IOCAT_USBRES, IOCTLF_SENDCONTROLURB,
727	(PVOID)&CtrlRequest, ulParmLen, &ulParmLen,
728	ulDataLen>0?(PVOID)pData:NULL,
729	ulDataLen,
730	ulDataLen>0?&ulDataLen:NULL);
731	if( rc != NO_ERROR )
732	{
733	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_INVALID_PARAMETER) )
734	rc= ERROR_INVALID_PARAMETER;
735	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_GEN_FAILURE) )
736	rc= CtrlRequest.usStatus;
737	}
738	return rc;
739	}
740
741	APIEXPORT APIRET APIENTRY
742	UsbBulkRead( USBHANDLE Handle,
743	UCHAR Endpoint,
744	UCHAR AltInterface,
745	ULONG *ulNumBytes,
746	PVOID pvData,
747	ULONG ulTimeout)
748	{
749	return UsbBulkRead2(Handle, Endpoint, AltInterface, TRUE /* fShortOk */, ulNumBytes, pvData, ulTimeout);
750	}
751
752	APIEXPORT APIRET APIENTRY
753	UsbBulkRead2( USBHANDLE Handle,
754	UCHAR Endpoint,
755	UCHAR AltInterface,
756	BOOL fShortOk,
757	ULONG *ulNumBytes,
758	PVOID pvData,
759	ULONG ulTimeout)
760	{
761	APIRET rc;
762	ULONG ulParmLen, ulDataLen, ulToProcess, ulTotalProcessed;
763	USBCALLS_BULK_REQ BulkRequest;
764
765	if(!g_cInit)
766	return USB_NOT_INIT;
767
768	if(*ulNumBytes==0)
769	return 0;
770
771	/* just require this */
772	if ((ULONG)pvData & 0xfff)
773	return ERROR_INVALID_ADDRESS;
774	if ((ULONG)pvData >= 0x20000000)
775	return ERROR_INVALID_ADDRESS;
776
777	ulToProcess = *ulNumBytes;
778	ulTotalProcessed = 0;
779
780	do
781	{
782	/* Process up to 64k, making sure we're working on segments. */
783	ulDataLen = 0x10000 - ((ULONG)pvData & 0xffff);
784	if (ulDataLen > ulToProcess)
785	ulDataLen = ulToProcess;
786
787	ulParmLen = sizeof(USBCALLS_BULK_REQ);
788
789	memset(&BulkRequest, 0, sizeof(BulkRequest));
790	BulkRequest.ulDevHandle = Handle;
791	BulkRequest.ucEndpoint = Endpoint;
792	BulkRequest.ucAltInterface = AltInterface;
793	BulkRequest.usStatus = 0;
794	BulkRequest.ulEvent = 0;
795	//BulkRequest.ulID = (ULONG)pvData;
796	BulkRequest.ulTimeout = ulTimeout;
797	BulkRequest.usDataProcessed = 0;
798	BulkRequest.usDataRemain = ulDataLen;
799	BulkRequest.usFlags = fShortOk && ulDataLen == ulToProcess ? 0 : USB_TRANSFER_FULL_SIZE;
800
801	rc = DosDevIOCtl( g_hUSBDrv,
802	IOCAT_USBRES, IOCTLF_SENDBULKURB,
803	(PVOID)&BulkRequest, ulParmLen, &ulParmLen,
804	pvData, ulDataLen, &ulDataLen);
805	Log(("BulkRead: usStatus=%d rc=%ld usDataProcessed=%d usDataRemain=%d ulDataLen=%ld\n",
806	BulkRequest.usStatus, rc, BulkRequest.usDataProcessed, BulkRequest.usDataRemain, ulDataLen));
807
808	if (rc != NO_ERROR)
809	{
810	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_INVALID_PARAMETER) )
811	rc= ERROR_INVALID_PARAMETER;
812	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_GEN_FAILURE) )
813	rc= BulkRequest.usStatus;
814	break;
815	}
816
817	/* Adjust count and source pointer */
818	ulToProcess -= ulDataLen;
819	pvData = (PBYTE)pvData + ulDataLen;
820	ulTotalProcessed += BulkRequest.usDataProcessed;
821
822	if (BulkRequest.usDataProcessed != ulDataLen)
823	{
824	/* Transferred less than we wanted? so something is wrong,
825	or device doesn't wish to send more, exit loop */
826	rc = USB_ERROR_LESSTRANSFERED;
827	break;
828	}
829	} while( ulToProcess>0 );
830
831	*ulNumBytes = ulTotalProcessed;
832
833	return rc;
834	}
835
836	APIEXPORT APIRET APIENTRY
837	UsbBulkWrite( USBHANDLE Handle,
838	UCHAR Endpoint,
839	UCHAR AltInterface,
840	ULONG ulNumBytes,
841	PVOID pvData,
842	ULONG ulTimeout)
843	{
844	return UsbBulkWrite2(Handle, Endpoint, AltInterface, FALSE /* fShortOk */, ulNumBytes, pvData, ulTimeout);
845	}
846
847	APIEXPORT APIRET APIENTRY
848	UsbBulkWrite2( USBHANDLE Handle,
849	UCHAR Endpoint,
850	UCHAR AltInterface,
851	BOOL fShortOk,
852	ULONG ulNumBytes,
853	PVOID pvData,
854	ULONG ulTimeout)
855	{
856	APIRET rc;
857	ULONG ulParmLen, ulDataLen;
858	USBCALLS_BULK_REQ BulkRequest;
859
860	if(!g_cInit)
861	return USB_NOT_INIT;
862
863	/* just require this */
864	if ((ULONG)pvData & 0xfff)
865	return ERROR_INVALID_ADDRESS;
866	if ((ULONG)pvData >= 0x20000000)
867	return ERROR_INVALID_ADDRESS;
868
869	do
870	{
871	/* Process up to 64k, making sure we're working on segments. */
872	ulDataLen = 0x10000 - ((ULONG)pvData & 0xffff);
873	if (ulDataLen > ulNumBytes)
874	ulDataLen = ulNumBytes;
875
876	ulParmLen = sizeof(USBCALLS_BULK_REQ);
877
878	memset(&BulkRequest, 0, sizeof(BulkRequest));
879	BulkRequest.ulDevHandle = Handle;
880	BulkRequest.ucEndpoint = Endpoint;
881	BulkRequest.ucAltInterface = AltInterface;
882	BulkRequest.usStatus = 0;
883	BulkRequest.ulEvent = 0;
884	//BulkRequest.ulID = (ULONG)pvData;
885	BulkRequest.ulTimeout = ulTimeout;
886	BulkRequest.usDataProcessed = 0;
887	BulkRequest.usDataRemain = ulDataLen;
888	BulkRequest.usFlags = fShortOk && ulDataLen == ulNumBytes ? 0 : USB_TRANSFER_FULL_SIZE;
889
890	rc = DosDevIOCtl( g_hUSBDrv,
891	IOCAT_USBRES, IOCTLF_SENDBULKURB,
892	&BulkRequest, ulParmLen, &ulParmLen,
893	pvData, ulDataLen, &ulDataLen );
894	Log(("BulkWrite: usStatus=%d rc=%ld usDataProcessed=%d usDataRemain=%d ulDataLen=%ld\n",
895	BulkRequest.usStatus, rc, BulkRequest.usDataProcessed, BulkRequest.usDataRemain, ulDataLen));
896	if (rc != NO_ERROR)
897	{
898	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_INVALID_PARAMETER) )
899	rc= ERROR_INVALID_PARAMETER;
900	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_GEN_FAILURE) )
901	rc= BulkRequest.usStatus;
902	break;
903	}
904	/* Adjust count and source pointer */
905	ulNumBytes -= ulDataLen;
906	pvData = (PBYTE)pvData + ulDataLen;
907	} while( ulNumBytes > 0 );
908
909	return rc;
910	}
911
912	APIRET APIENTRY
913	UsbIrqStart( USBHANDLE Handle,
914	UCHAR Endpoint,
915	UCHAR AltInterface,
916	USHORT ulNumBytes,
917	PVOID pData,
918	PHEV pHevModified)
919	{
920	APIRET rc;
921	ULONG ulParmLen, ulDataLen;
922	USBCALLS_IRQ_START IrqStart;
923	HEV hEvent;
924
925	if(!g_cInit)
926	return USB_NOT_INIT;
927
928	if(0==ulNumBytes \|\| IsBadWritePointer(pData, ulNumBytes))
929	return ERROR_INVALID_PARAMETER;
930
931	rc = DosCreateEventSem( NULL,
932	&hEvent,
933	DC_SEM_SHARED,
934	FALSE);
935	if(rc)
936	return rc;
937
938	IrqStart.ulDevHandle = Handle;
939	IrqStart.ucEndpoint = Endpoint;
940	IrqStart.ucAltInterface = AltInterface;
941	IrqStart.usStatus = 0;
942	IrqStart.ulEvent = hEvent;
943	ulParmLen = sizeof(IrqStart);
944	ulDataLen = ulNumBytes;
945
946	rc = DosDevIOCtl( g_hUSBDrv,
947	IOCAT_USBRES, IOCTLF_START_IRQ_PROC,
948	(PVOID)&IrqStart, ulParmLen, &ulParmLen,
949	pData, ulDataLen,&ulDataLen);
950	if(rc)
951	DosCloseEventSem(hEvent);
952	else
953	*pHevModified = hEvent;
954	return rc;
955	}
956
957	APIEXPORT APIRET APIENTRY
958	UsbIrqStop( USBHANDLE Handle,
959	HEV HevModified)
960	{
961	APIRET rc;
962	ULONG ulParmLen, ulDataLen;
963
964	if(!g_cInit)
965	return USB_NOT_INIT;
966
967	ulParmLen = sizeof(Handle);
968	ulDataLen = sizeof(HevModified);
969	rc = DosDevIOCtl( g_hUSBDrv,
970	IOCAT_USBRES, IOCTLF_STOP_IRQ_PROC,
971	(PVOID)&Handle, ulParmLen, &ulParmLen,
972	&HevModified, ulDataLen, &ulDataLen);
973	if(!rc)
974	DosCloseEventSem(HevModified);
975
976	return rc;
977	}
978
979	APIEXPORT APIRET APIENTRY
980	UsbIsoStart( USBHANDLE Handle,
981	UCHAR Endpoint,
982	UCHAR AltInterface,
983	ISOHANDLE *phIso)
984	{
985	APIRET rc;
986	PISORINGBUFFER pIter = g_pIsoRingBuffers;
987	USBCALLS_ISO_START IsoStart;
988	ULONG ulParmLen, ulDataLen;
989	int i;
990
991	if(!g_cInit)
992	return USB_NOT_INIT;
993
994	rc = DosRequestMutexSem(g_hSemRingBuffers,SEM_INDEFINITE_WAIT);
995	if(rc)
996	return rc;
997
998	for(i=0;i< g_ulNumIsoRingBuffers;i++,pIter++)
999	{
1000	if (pIter->hDevice==0)
1001	{
1002	pIter->hDevice = Handle;
1003	break;
1004	}
1005	}
1006	DosReleaseMutexSem(g_hSemRingBuffers);
1007
1008	if(i==g_ulNumIsoRingBuffers)
1009	return USB_ERROR_OUTOF_RESOURCES;
1010
1011	IsoStart.ulDevHandle = Handle;
1012	IsoStart.ucEndpoint = Endpoint;
1013	IsoStart.ucAltInterface = AltInterface;
1014	ulParmLen = sizeof(IsoStart);
1015	ulDataLen = sizeof(ISORINGBUFFER);
1016
1017	rc = DosDevIOCtl( g_hUSBDrv,
1018	IOCAT_USBRES, IOCTLF_STOP_IRQ_PROC,
1019	(PVOID)&IsoStart, ulParmLen, &ulParmLen,
1020	pIter, ulDataLen, &ulDataLen);
1021	if(rc)
1022	{
1023	pIter->hDevice = 0;
1024	*phIso = 0;
1025	}
1026	else
1027	{
1028	pIter->ucEndpoint = Endpoint;
1029	pIter->ucAltInterface = AltInterface;
1030	}
1031	return rc;
1032	}
1033
1034	static APIRET IsInvalidIsoHandle(const ISOHANDLE hIso)
1035	{
1036	PISORINGBUFFER pIter;
1037	ULONG i;
1038	pIter = g_pIsoRingBuffers;
1039
1040	for(i=0;i<g_ulNumIsoRingBuffers;i++,pIter++)
1041	{
1042	if(pIter==(PISORINGBUFFER)hIso && pIter->hDevice)
1043	return 0;
1044	}
1045	return ERROR_INVALID_PARAMETER;
1046	}
1047
1048	APIEXPORT APIRET APIENTRY
1049	UsbIsoStop( ISOHANDLE hIso)
1050	{
1051
1052	APIRET rc = NO_ERROR;
1053	if(!g_cInit)
1054	return USB_NOT_INIT;
1055
1056	/* rc = DosDevIOCtl( g_hUSBDrv, */
1057	return rc;
1058	}
1059
1060	APIEXPORT APIRET APIENTRY
1061	UsbIsoDequeue( ISOHANDLE hIso,
1062	PVOID pBuffer,
1063	ULONG ulNumBytes)
1064	{
1065	APIRET rc;
1066	PISORINGBUFFER pRB = (PISORINGBUFFER)hIso;
1067
1068	rc = IsInvalidIsoHandle(hIso);
1069	if(rc)
1070	return rc;
1071	if(!(pRB->ucEndpoint & ISO_DIRMASK))
1072	return ERROR_INVALID_PARAMETER;
1073
1074	return rc;
1075	}
1076
1077	APIEXPORT APIRET APIENTRY
1078	UsbIsoPeekQueue( ISOHANDLE hIso,
1079	UCHAR * pByte,
1080	ULONG ulOffset)
1081	{
1082	APIRET rc;
1083	PISORINGBUFFER pRB = (PISORINGBUFFER)hIso;
1084
1085	rc = IsInvalidIsoHandle(hIso);
1086	if(rc)
1087	return rc;
1088	if(!(pRB->ucEndpoint & ISO_DIRMASK))
1089	return ERROR_INVALID_PARAMETER;
1090	return rc;
1091	}
1092
1093	APIEXPORT APIRET APIENTRY
1094	UsbIsoEnqueue( ISOHANDLE hIso,
1095	const UCHAR * pBuffer,
1096	ULONG ulNumBytes)
1097	{
1098	APIRET rc;
1099	PISORINGBUFFER pRB = (PISORINGBUFFER)hIso;
1100
1101	rc = IsInvalidIsoHandle(hIso);
1102	if(rc)
1103	return rc;
1104	if(pRB->ucEndpoint & ISO_DIRMASK)
1105	return ERROR_INVALID_PARAMETER;
1106
1107	return rc;
1108	}
1109
1110	APIEXPORT APIRET APIENTRY
1111	UsbIsoGetLength( ISOHANDLE hIso,
1112	ULONG *pulLength)
1113	{
1114	APIRET rc;
1115	PISORINGBUFFER pRB = (PISORINGBUFFER) hIso;
1116	USHORT ri,wi;
1117
1118	rc = IsInvalidIsoHandle(hIso);
1119	if(rc)
1120	return rc;
1121	wi = pRB->usPosWrite;
1122	ri = pRB->usPosRead;
1123
1124	if (ri == wi)
1125	*pulLength = 0;
1126	else if (ri < wi)
1127	*pulLength = wi - ri;
1128	else
1129	*pulLength = wi + (pRB->usBufSize - ri);
1130
1131	return 0;
1132	}
1133
1134	APIEXPORT APIRET APIENTRY
1135	UsbIrqRead( USBHANDLE Handle,
1136	UCHAR Endpoint,
1137	UCHAR AltInterface,
1138	ULONG *ulNumBytes,
1139	PVOID pData,
1140	ULONG ulTimeout)
1141	{
1142	APIRET rc;
1143	ULONG ulParmLen, ulDataLen;
1144	LIBUSB_IRQ_REQ IrqRequest;
1145
1146	if(!g_cInit)
1147	return USB_NOT_INIT;
1148
1149	/* 10 01 2003 - KIEWITZ -> Still @@ToDo Add Endpoint check based on descriptors
1150	We currently only allow Endpoint-addresses 80h->8Fh here */
1151	if ((Endpoint<0x80) \|\| (Endpoint>0x8F))
1152	return USB_ERROR_INVALID_ENDPOINT;
1153
1154	if(*ulNumBytes==0)
1155	return 0;
1156
1157	IrqRequest.ulDevHandle = Handle;
1158	IrqRequest.ucEndpoint = Endpoint;
1159	IrqRequest.ucAltInterface = AltInterface;
1160	IrqRequest.usStatus = 0;
1161	IrqRequest.ulEvent = 0;
1162	IrqRequest.ulTimeout = ulTimeout;
1163	ulParmLen = sizeof(LIBUSB_IRQ_REQ);
1164	ulDataLen = *ulNumBytes;
1165
1166	rc = DosDevIOCtl( g_hUSBDrv,
1167	IOCAT_USBRES, IOCTLF_SENDIRQURB,
1168	(PVOID)&IrqRequest, ulParmLen, &ulParmLen,
1169	pData, ulDataLen, &ulDataLen);
1170
1171	if( rc == NO_ERROR )
1172	{
1173	*ulNumBytes = IrqRequest.usDataLen;
1174	} else
1175	{
1176	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_INVALID_PARAMETER) )
1177	rc= ERROR_INVALID_PARAMETER;
1178	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_GEN_FAILURE) )
1179	rc= IrqRequest.usStatus;
1180	}
1181	return rc;
1182	}
1183
1184
1185	APIEXPORT APIRET APIENTRY
1186	UsbFixupDevice( USBHANDLE Handle,
1187	UCHAR ucConfiguration,
1188	UCHAR *pucConfigurationData,
1189	ULONG ulConfigurationLen )
1190	{
1191	LIBUSB_FIXUP request;
1192	ULONG ulParmLen;
1193	APIRET rc;
1194
1195	request.ulDevHandle= Handle;
1196	request.ucConfiguration= ucConfiguration;
1197	request.usStatus= 0;
1198	ulParmLen= sizeof(LIBUSB_FIXUP);
1199	rc = DosDevIOCtl( g_hUSBDrv,
1200	IOCAT_USBRES, IOCTLF_FIXUPDEVUCE,
1201	(PVOID)&request, ulParmLen, &ulParmLen,
1202	pucConfigurationData, ulConfigurationLen, &ulConfigurationLen);
1203	if( rc != NO_ERROR )
1204	{
1205	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_INVALID_PARAMETER) )
1206	rc= ERROR_INVALID_PARAMETER;
1207	if( rc == (ERROR_USER_DEFINED_BASE\|ERROR_I24_GEN_FAILURE) )
1208	rc= request.usStatus;
1209	}
1210	return rc;
1211	}
1212
1213	#ifndef STATIC_USBCALLS
1214	/+-------------------------------------------------------------------+/
1215	/\| _CRT_init is the C run-time environment initialization function. \|/
1216	/\|It will return 0 to indicate success and -1 to indicate failure. \|/
1217	/+-------------------------------------------------------------------+/
1218
1219	/* int _CRT_init (void); */
1220
1221	/+-------------------------------------------------------------------+/
1222	/\| _CRT_term is the C run-time environment termination function. \|/
1223	/+-------------------------------------------------------------------+/
1224
1225	/* void _CRT_term (unsigned long);*/
1226
1227	/+-------------------------------------------------------------------+/
1228	/\| _DLL_InitTerm is the function that gets called by the operating \|/
1229	/\| system loader when it loads and frees this DLL for each process \|/
1230	/\| that accesses this DLL. However, it only gets called the first \|/
1231	/\| time the DLL is loaded and the last time it is freed for a \|/
1232	/\| particular process. The system linkage convention must be used \|/
1233	/\| because the operating system loader is calling this function. \|/
1234	/+-------------------------------------------------------------------+/
1235
1236	#ifdef STATIC_LINK
1237	int _CRT_init (void);
1238	void _CRT_term(0UL);
1239	#endif
1240
1241	unsigned long _System _DLL_InitTerm (unsigned long modhandle, unsigned long flag)
1242	{
1243
1244	/* If flag is zero then the DLL is being loaded so initialization */
1245	/* should be performed. If flag is 1 then the DLL is being freed */
1246	/* so termination should be performed. */
1247
1248	switch (flag)
1249	{
1250	case 0:
1251	/* The C run-time environment initialization function must */
1252	/* be called before any calls to C run-time functions that */
1253	/* are not inlined. */
1254
1255	#ifdef STATIC_LINK
1256	if (_CRT_init () == -1)
1257	return 0UL;
1258	#endif
1259	InitUsbCalls();
1260	break;
1261
1262	case 1:
1263	TermUsbCalls();
1264	#ifdef STATIC_LINK
1265	_CRT_term(0UL);
1266	#endif
1267	break;
1268
1269	default:
1270	return 0UL;
1271
1272	}
1273
1274	/* A nonzero value must be returned to indicate success. */
1275	return 1UL;
1276	}
1277	#endif /* !STATIC_USBCALLS */
1278

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source: vbox/trunk/src/VBox/HostDrivers/VBoxUSB/os2/usbcalls.c

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