1 /*
2 * WINE Drivers functions
3 *
4 * Copyright 1994 Martin Ayotte
5 * Copyright 1998 Marcus Meissner
6 * Copyright 1999 Eric Pouech
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 */
22
23 #include "winemm.h"
24
25 WINE_DEFAULT_DEBUG_CHANNEL(driver);
26
27 static CRITICAL_SECTION mmdriver_lock;
28 static CRITICAL_SECTION_DEBUG mmdriver_lock_debug =
29 {
30 0, 0, &mmdriver_lock,
31 { &mmdriver_lock_debug.ProcessLocksList, &mmdriver_lock_debug.ProcessLocksList },
32 0, 0, { (DWORD_PTR)(__FILE__ ": mmdriver_lock") }
33 };
34 static CRITICAL_SECTION mmdriver_lock = { &mmdriver_lock_debug, -1, 0, 0, 0, 0 };
35
36 static LPWINE_DRIVER lpDrvItemList /* = NULL */;
37 static const WCHAR HKLM_BASE[] = {'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
38 'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n',0};
39
DRIVER_Dump(const char * comment)40 static void DRIVER_Dump(const char *comment)
41 {
42 #if 0
43 LPWINE_DRIVER lpDrv;
44
45 TRACE("%s\n", comment);
46
47 EnterCriticalSection( &mmdriver_lock );
48
49 for (lpDrv = lpDrvItemList; lpDrv != NULL; lpDrv = lpDrv->lpNextItem)
50 {
51 TRACE("%p, magic %04lx, id %p, next %p\n", lpDrv, lpDrv->dwMagic, lpDrv->d.d32.dwDriverID, lpDrv->lpNextItem);
52 }
53
54 LeaveCriticalSection( &mmdriver_lock );
55 #endif
56 }
57
58 /**************************************************************************
59 * DRIVER_GetNumberOfModuleRefs [internal]
60 *
61 * Returns the number of open drivers which share the same module.
62 */
DRIVER_GetNumberOfModuleRefs(HMODULE hModule,WINE_DRIVER ** found)63 static unsigned DRIVER_GetNumberOfModuleRefs(HMODULE hModule, WINE_DRIVER** found)
64 {
65 LPWINE_DRIVER lpDrv;
66 unsigned count = 0;
67
68 EnterCriticalSection( &mmdriver_lock );
69
70 if (found) *found = NULL;
71 for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem)
72 {
73 if (lpDrv->hModule == hModule)
74 {
75 if (found && !*found) *found = lpDrv;
76 count++;
77 }
78 }
79
80 LeaveCriticalSection( &mmdriver_lock );
81 return count;
82 }
83
84 /**************************************************************************
85 * DRIVER_FindFromHDrvr [internal]
86 *
87 * From a hDrvr being 32 bits, returns the WINE internal structure.
88 */
DRIVER_FindFromHDrvr(HDRVR hDrvr)89 LPWINE_DRIVER DRIVER_FindFromHDrvr(HDRVR hDrvr)
90 {
91 LPWINE_DRIVER d;
92
93 __TRY
94 {
95 d = (LPWINE_DRIVER)hDrvr;
96 if (d && d->dwMagic != WINE_DI_MAGIC) d = NULL;
97 }
98 __EXCEPT_PAGE_FAULT
99 {
100 return NULL;
101 }
102 __ENDTRY;
103
104 if (d) TRACE("%p -> %p, %p\n", hDrvr, d->lpDrvProc, (void *)d->dwDriverID);
105 else TRACE("%p -> NULL\n", hDrvr);
106
107 return d;
108 }
109
110 /**************************************************************************
111 * DRIVER_SendMessage [internal]
112 */
DRIVER_SendMessage(LPWINE_DRIVER lpDrv,UINT msg,LPARAM lParam1,LPARAM lParam2)113 static inline LRESULT DRIVER_SendMessage(LPWINE_DRIVER lpDrv, UINT msg,
114 LPARAM lParam1, LPARAM lParam2)
115 {
116 LRESULT ret = 0;
117
118 TRACE("Before call32 proc=%p drvrID=%08lx hDrv=%p wMsg=%04x p1=%08lx p2=%08lx\n",
119 lpDrv->lpDrvProc, lpDrv->dwDriverID, lpDrv, msg, lParam1, lParam2);
120 ret = lpDrv->lpDrvProc(lpDrv->dwDriverID, (HDRVR)lpDrv, msg, lParam1, lParam2);
121 TRACE("After call32 proc=%p drvrID=%08lx hDrv=%p wMsg=%04x p1=%08lx p2=%08lx => %08lx\n",
122 lpDrv->lpDrvProc, lpDrv->dwDriverID, lpDrv, msg, lParam1, lParam2, ret);
123
124 return ret;
125 }
126
127 /**************************************************************************
128 * SendDriverMessage [WINMM.@]
129 * DrvSendMessage [WINMM.@]
130 */
SendDriverMessage(HDRVR hDriver,UINT msg,LPARAM lParam1,LPARAM lParam2)131 LRESULT WINAPI SendDriverMessage(HDRVR hDriver, UINT msg, LPARAM lParam1,
132 LPARAM lParam2)
133 {
134 LPWINE_DRIVER lpDrv;
135 LRESULT retval = 0;
136
137 TRACE("(%p, %04X, %08lX, %08lX)\n", hDriver, msg, lParam1, lParam2);
138
139 if ((lpDrv = DRIVER_FindFromHDrvr(hDriver)) != NULL) {
140 retval = DRIVER_SendMessage(lpDrv, msg, lParam1, lParam2);
141 } else {
142 WARN("Bad driver handle %p\n", hDriver);
143 }
144 TRACE("retval = %ld\n", retval);
145
146 return retval;
147 }
148
149 /**************************************************************************
150 * DRIVER_RemoveFromList [internal]
151 *
152 * Generates all the logic to handle driver closure / deletion
153 * Removes a driver struct to the list of open drivers.
154 */
DRIVER_RemoveFromList(LPWINE_DRIVER lpDrv)155 static BOOL DRIVER_RemoveFromList(LPWINE_DRIVER lpDrv)
156 {
157 /* last of this driver in list ? */
158 if (DRIVER_GetNumberOfModuleRefs(lpDrv->hModule, NULL) == 1) {
159 DRIVER_SendMessage(lpDrv, DRV_DISABLE, 0L, 0L);
160 DRIVER_SendMessage(lpDrv, DRV_FREE, 0L, 0L);
161 }
162
163 EnterCriticalSection( &mmdriver_lock );
164
165 if (lpDrv->lpPrevItem)
166 lpDrv->lpPrevItem->lpNextItem = lpDrv->lpNextItem;
167 else
168 lpDrvItemList = lpDrv->lpNextItem;
169 if (lpDrv->lpNextItem)
170 lpDrv->lpNextItem->lpPrevItem = lpDrv->lpPrevItem;
171 /* trash magic number */
172 lpDrv->dwMagic ^= 0xa5a5a5a5;
173 lpDrv->lpDrvProc = NULL;
174 lpDrv->dwDriverID = 0;
175
176 LeaveCriticalSection( &mmdriver_lock );
177
178 return TRUE;
179 }
180
181 /**************************************************************************
182 * DRIVER_AddToList [internal]
183 *
184 * Adds a driver struct to the list of open drivers.
185 * Generates all the logic to handle driver creation / open.
186 */
DRIVER_AddToList(LPWINE_DRIVER lpNewDrv,LPARAM lParam1,LPARAM lParam2)187 static BOOL DRIVER_AddToList(LPWINE_DRIVER lpNewDrv, LPARAM lParam1, LPARAM lParam2)
188 {
189 lpNewDrv->dwMagic = WINE_DI_MAGIC;
190 /* First driver to be loaded for this module, need to load correctly the module */
191 /* first of this driver in list ? */
192 if (DRIVER_GetNumberOfModuleRefs(lpNewDrv->hModule, NULL) == 0) {
193 if (DRIVER_SendMessage(lpNewDrv, DRV_LOAD, 0L, 0L) != DRV_SUCCESS) {
194 TRACE("DRV_LOAD failed on driver %p\n", lpNewDrv);
195 return FALSE;
196 }
197 /* returned value is not checked */
198 DRIVER_SendMessage(lpNewDrv, DRV_ENABLE, 0L, 0L);
199 }
200
201 /* Now just open a new instance of a driver on this module */
202 lpNewDrv->dwDriverID = DRIVER_SendMessage(lpNewDrv, DRV_OPEN, lParam1, lParam2);
203
204 if (lpNewDrv->dwDriverID == 0)
205 {
206 TRACE("DRV_OPEN failed on driver %p\n", lpNewDrv);
207 return FALSE;
208 }
209
210 EnterCriticalSection( &mmdriver_lock );
211
212 lpNewDrv->lpNextItem = NULL;
213 if (lpDrvItemList == NULL) {
214 lpDrvItemList = lpNewDrv;
215 lpNewDrv->lpPrevItem = NULL;
216 } else {
217 LPWINE_DRIVER lpDrv = lpDrvItemList; /* find end of list */
218 while (lpDrv->lpNextItem != NULL)
219 lpDrv = lpDrv->lpNextItem;
220
221 lpDrv->lpNextItem = lpNewDrv;
222 lpNewDrv->lpPrevItem = lpDrv;
223 }
224
225 LeaveCriticalSection( &mmdriver_lock );
226 return TRUE;
227 }
228
229 /**************************************************************************
230 * DRIVER_GetLibName [internal]
231 *
232 */
DRIVER_GetLibName(LPCWSTR keyName,LPCWSTR sectName,LPWSTR buf,int sz)233 BOOL DRIVER_GetLibName(LPCWSTR keyName, LPCWSTR sectName, LPWSTR buf, int sz)
234 {
235 HKEY hKey, hSecKey;
236 DWORD bufLen, lRet;
237 static const WCHAR wszSystemIni[] = {'S','Y','S','T','E','M','.','I','N','I',0};
238 WCHAR wsznull = '\0';
239
240 /* This takes us as far as Windows NT\CurrentVersion */
241 lRet = RegOpenKeyExW(HKEY_LOCAL_MACHINE, HKLM_BASE, 0, KEY_QUERY_VALUE, &hKey);
242
243 if (lRet == ERROR_SUCCESS)
244 {
245 /* Now we descend into the section name that we were given */
246 lRet = RegOpenKeyExW(hKey, sectName, 0, KEY_QUERY_VALUE, &hSecKey);
247
248 if (lRet == ERROR_SUCCESS)
249 {
250 /* Retrieve the desired value - this is the filename of the lib */
251 bufLen = sz;
252 lRet = RegQueryValueExW(hSecKey, keyName, 0, 0, (void*)buf, &bufLen);
253 RegCloseKey( hSecKey );
254 }
255
256 RegCloseKey( hKey );
257 }
258
259 /* Finish up if we've got what we want from the registry */
260 if (lRet == ERROR_SUCCESS)
261 return TRUE;
262
263 /* default to system.ini if we can't find it in the registry,
264 * to support native installations where system.ini is still used */
265 return GetPrivateProfileStringW(sectName, keyName, &wsznull, buf, sz / sizeof(WCHAR), wszSystemIni);
266 }
267
268 /**************************************************************************
269 * DRIVER_TryOpenDriver32 [internal]
270 *
271 * Tries to load a 32 bit driver whose DLL's (module) name is fn
272 */
DRIVER_TryOpenDriver32(LPCWSTR fn,LPARAM lParam2)273 LPWINE_DRIVER DRIVER_TryOpenDriver32(LPCWSTR fn, LPARAM lParam2)
274 {
275 LPWINE_DRIVER lpDrv = NULL;
276 HMODULE hModule = 0;
277 LPWSTR ptr;
278 LPCSTR cause = 0;
279
280 TRACE("(%s, %08lX);\n", debugstr_w(fn), lParam2);
281
282 if ((ptr = strchrW(fn, ' ')) != NULL)
283 {
284 *ptr++ = '\0';
285
286 while (*ptr == ' ')
287 ptr++;
288
289 if (*ptr == '\0')
290 ptr = NULL;
291 }
292
293 lpDrv = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_DRIVER));
294
295 if (lpDrv == NULL)
296 {
297 cause = "OOM";
298 goto exit;
299 }
300
301 if ((hModule = LoadLibraryW(fn)) == 0)
302 {
303 cause = "Not a 32 bit lib";
304 goto exit;
305 }
306
307 lpDrv->lpDrvProc = (DRIVERPROC)GetProcAddress(hModule, "DriverProc");
308
309 if (lpDrv->lpDrvProc == NULL)
310 {
311 cause = "no DriverProc";
312 goto exit;
313 }
314
315 lpDrv->dwFlags = 0;
316 lpDrv->hModule = hModule;
317 lpDrv->dwDriverID = 0;
318
319 /* Win32 installable drivers must support a two phase opening scheme:
320 * + first open with NULL as lParam2 (session instance),
321 * + then do a second open with the real non null lParam2)
322 */
323 if (DRIVER_GetNumberOfModuleRefs(lpDrv->hModule, NULL) == 0 && lParam2)
324 {
325 LPWINE_DRIVER ret;
326
327 if (!DRIVER_AddToList(lpDrv, (LPARAM)ptr, 0L))
328 {
329 cause = "load0 failed";
330 goto exit;
331 }
332 ret = DRIVER_TryOpenDriver32(fn, lParam2);
333 if (!ret)
334 {
335 CloseDriver((HDRVR)lpDrv, 0L, 0L);
336 cause = "load1 failed";
337 goto exit;
338 }
339 return ret;
340 }
341
342 if (!DRIVER_AddToList(lpDrv, (LPARAM)ptr, lParam2))
343 {
344 cause = "load failed";
345 goto exit;
346 }
347
348 TRACE("=> %p\n", lpDrv);
349 return lpDrv;
350
351 exit:
352 FreeLibrary(hModule);
353 HeapFree(GetProcessHeap(), 0, lpDrv);
354 TRACE("Unable to load 32 bit module %s: %s\n", debugstr_w(fn), cause);
355 return NULL;
356 }
357
358 /**************************************************************************
359 * OpenDriverA [WINMM.@]
360 * DrvOpenA [WINMM.@]
361 * (0,1,DRV_LOAD ,0 ,0)
362 * (0,1,DRV_ENABLE,0 ,0)
363 * (0,1,DRV_OPEN ,buf[256],0)
364 */
OpenDriverA(LPCSTR lpDriverName,LPCSTR lpSectionName,LPARAM lParam)365 HDRVR WINAPI OpenDriverA(LPCSTR lpDriverName, LPCSTR lpSectionName, LPARAM lParam)
366 {
367 INT len;
368 LPWSTR dn = NULL;
369 LPWSTR sn = NULL;
370 HDRVR ret = 0;
371
372 if (lpDriverName)
373 {
374 len = MultiByteToWideChar( CP_ACP, 0, lpDriverName, -1, NULL, 0 );
375 dn = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
376 if (!dn) goto done;
377 MultiByteToWideChar( CP_ACP, 0, lpDriverName, -1, dn, len );
378 }
379
380 if (lpSectionName)
381 {
382 len = MultiByteToWideChar( CP_ACP, 0, lpSectionName, -1, NULL, 0 );
383 sn = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
384 if (!sn) goto done;
385 MultiByteToWideChar( CP_ACP, 0, lpSectionName, -1, sn, len );
386 }
387
388 ret = OpenDriver(dn, sn, lParam);
389
390 done:
391 HeapFree(GetProcessHeap(), 0, dn);
392 HeapFree(GetProcessHeap(), 0, sn);
393 return ret;
394 }
395
396 /**************************************************************************
397 * OpenDriver [WINMM.@]
398 * DrvOpen [WINMM.@]
399 */
OpenDriver(LPCWSTR lpDriverName,LPCWSTR lpSectionName,LPARAM lParam)400 HDRVR WINAPI OpenDriver(LPCWSTR lpDriverName, LPCWSTR lpSectionName, LPARAM lParam)
401 {
402 LPWINE_DRIVER lpDrv = NULL;
403 WCHAR libName[128];
404 LPCWSTR lsn = lpSectionName;
405
406 TRACE("(%s, %s, 0x%08lx);\n",
407 debugstr_w(lpDriverName), debugstr_w(lpSectionName), lParam);
408
409 /* If no section name is specified, either the caller is intending on
410 opening a driver by filename, or wants to open a user-installable
411 driver that has an entry in the Drivers32 key in the registry */
412 if (lsn == NULL)
413 {
414 /* Default registry key */
415 static const WCHAR wszDrivers32[] = {'D','r','i','v','e','r','s','3','2',0};
416
417 lstrcpynW(libName, lpDriverName, sizeof(libName) / sizeof(WCHAR));
418
419 /* Try and open the driver by filename */
420 if ( (lpDrv = DRIVER_TryOpenDriver32(libName, lParam)) )
421 goto the_end;
422
423 /* If we got here, the file wasn't found. So we assume the caller
424 wanted a driver specified under the Drivers32 registry key */
425 lsn = wszDrivers32;
426 }
427
428 /* Attempt to locate the driver filename in the registry */
429 if ( DRIVER_GetLibName(lpDriverName, lsn, libName, sizeof(libName)) )
430 {
431 /* Now we have the filename, we can try and load it */
432 if ( (lpDrv = DRIVER_TryOpenDriver32(libName, lParam)) )
433 goto the_end;
434 }
435
436 /* now we will try a 16 bit driver (and add all the glue to make it work... which
437 * is located in our mmsystem implementation)
438 * so ensure, we can load our mmsystem, otherwise just fail
439 */
440 WINMM_CheckForMMSystem();
441 #if 0
442 if (pFnOpenDriver16 &&
443 (lpDrv = pFnOpenDriver16(lpDriverName, lpSectionName, lParam)))
444 {
445 if (DRIVER_AddToList(lpDrv, 0, lParam)) goto the_end;
446 HeapFree(GetProcessHeap(), 0, lpDrv);
447 }
448 TRACE("Failed to open driver %s from system.ini file, section %s\n",
449 debugstr_w(lpDriverName), debugstr_w(lpSectionName));
450 #endif
451 return 0;
452
453 the_end:
454 if (lpDrv) TRACE("=> %p\n", lpDrv);
455 return (HDRVR)lpDrv;
456 }
457
458 /**************************************************************************
459 * CloseDriver [WINMM.@]
460 * DrvClose [WINMM.@]
461 */
CloseDriver(HDRVR hDrvr,LPARAM lParam1,LPARAM lParam2)462 LRESULT WINAPI CloseDriver(HDRVR hDrvr, LPARAM lParam1, LPARAM lParam2)
463 {
464 BOOL ret;
465 LPWINE_DRIVER lpDrv;
466
467 TRACE("(%p, %08lX, %08lX);\n", hDrvr, lParam1, lParam2);
468
469 DRIVER_Dump("BEFORE:");
470
471 if ((lpDrv = DRIVER_FindFromHDrvr(hDrvr)) != NULL)
472 {
473 LPWINE_DRIVER lpDrv0;
474
475 DRIVER_SendMessage(lpDrv, DRV_CLOSE, lParam1, lParam2);
476
477 DRIVER_RemoveFromList(lpDrv);
478
479 if (lpDrv->dwFlags & WINE_GDF_SESSION)
480 FIXME("WINE_GDF_SESSION: Shouldn't happen (%p)\n", lpDrv);
481 /* if driver has an opened session instance, we have to close it too */
482 if (DRIVER_GetNumberOfModuleRefs(lpDrv->hModule, &lpDrv0) == 1 &&
483 (lpDrv0->dwFlags & WINE_GDF_SESSION))
484 {
485 DRIVER_SendMessage(lpDrv0, DRV_CLOSE, 0, 0);
486 DRIVER_RemoveFromList(lpDrv0);
487 FreeLibrary(lpDrv0->hModule);
488 HeapFree(GetProcessHeap(), 0, lpDrv0);
489 }
490 FreeLibrary(lpDrv->hModule);
491
492 HeapFree(GetProcessHeap(), 0, lpDrv);
493 ret = TRUE;
494 }
495 else
496 {
497 WARN("Failed to close driver\n");
498 ret = FALSE;
499 }
500
501 DRIVER_Dump("AFTER:");
502
503 return ret;
504 }
505
506 /**************************************************************************
507 * GetDriverFlags [WINMM.@]
508 * [in] hDrvr handle to the driver
509 *
510 * Returns:
511 * 0x00000000 if hDrvr is an invalid handle
512 * 0x80000000 if hDrvr is a valid 32 bit driver
513 * 0x90000000 if hDrvr is a valid 16 bit driver
514 *
515 * native WINMM doesn't return those flags
516 * 0x80000000 for a valid 32 bit driver and that's it
517 * (I may have mixed up the two flags :-(
518 */
GetDriverFlags(HDRVR hDrvr)519 DWORD WINAPI GetDriverFlags(HDRVR hDrvr)
520 {
521 LPWINE_DRIVER lpDrv;
522 DWORD ret = 0;
523
524 TRACE("(%p)\n", hDrvr);
525
526 if ((lpDrv = DRIVER_FindFromHDrvr(hDrvr)) != NULL) {
527 ret = WINE_GDF_EXIST | (lpDrv->dwFlags & WINE_GDF_EXTERNAL_MASK);
528 }
529 return ret;
530 }
531
532 /**************************************************************************
533 * GetDriverModuleHandle [WINMM.@]
534 * DrvGetModuleHandle [WINMM.@]
535 */
GetDriverModuleHandle(HDRVR hDrvr)536 HMODULE WINAPI GetDriverModuleHandle(HDRVR hDrvr)
537 {
538 LPWINE_DRIVER lpDrv;
539 HMODULE hModule = 0;
540
541 TRACE("(%p);\n", hDrvr);
542
543 if ((lpDrv = DRIVER_FindFromHDrvr(hDrvr)) != NULL) {
544 hModule = lpDrv->hModule;
545 }
546 TRACE("=> %p\n", hModule);
547 return hModule;
548 }
549
550 /**************************************************************************
551 * DefDriverProc [WINMM.@]
552 * DrvDefDriverProc [WINMM.@]
553 */
DefDriverProc(DWORD_PTR dwDriverIdentifier,HDRVR hDrv,UINT Msg,LPARAM lParam1,LPARAM lParam2)554 LRESULT WINAPI DefDriverProc(DWORD_PTR dwDriverIdentifier, HDRVR hDrv,
555 UINT Msg, LPARAM lParam1, LPARAM lParam2)
556 {
557 switch (Msg) {
558 case DRV_LOAD:
559 case DRV_FREE:
560 case DRV_ENABLE:
561 case DRV_DISABLE:
562 return 1;
563 case DRV_INSTALL:
564 case DRV_REMOVE:
565 return DRV_SUCCESS;
566 default:
567 return 0;
568 }
569 }
570
571 /**************************************************************************
572 * DRIVER_getCallback [internal]
573 */
DRIVER_getCallback(DWORD uFlags)574 static const char* DRIVER_getCallback(DWORD uFlags)
575 {
576 switch(uFlags & DCB_TYPEMASK) {
577 case DCB_NULL: return "null";
578 case DCB_WINDOW: return "window";
579 case DCB_TASK: return "task";
580 case DCB_EVENT: return "event";
581 case DCB_FUNCTION: return "32bit function";
582 default: return "UNKNOWN";
583 }
584 }
585
586 /**************************************************************************
587 * DriverCallback [WINMM.@]
588 */
DriverCallback(DWORD_PTR dwCallBack,DWORD uFlags,HDRVR hDev,DWORD wMsg,DWORD_PTR dwUser,DWORD_PTR dwParam1,DWORD_PTR dwParam2)589 BOOL WINAPI DriverCallback(DWORD_PTR dwCallBack, DWORD uFlags, HDRVR hDev,
590 DWORD wMsg, DWORD_PTR dwUser, DWORD_PTR dwParam1,
591 DWORD_PTR dwParam2)
592 {
593 BOOL ret = FALSE;
594 TRACE("(%08lX, %s %04X, %p, %04X, %08lX, %08lX, %08lX)\n",
595 dwCallBack, DRIVER_getCallback(uFlags), uFlags, hDev, wMsg, dwUser, dwParam1, dwParam2);
596 if (!dwCallBack)
597 return ret;
598
599 switch (uFlags & DCB_TYPEMASK) {
600 case DCB_NULL:
601 /* Native returns FALSE = no notification, not TRUE */
602 return ret;
603 case DCB_WINDOW:
604 ret = PostMessageA((HWND)dwCallBack, wMsg, (WPARAM)hDev, dwParam1);
605 break;
606 case DCB_TASK: /* aka DCB_THREAD */
607 ret = PostThreadMessageA(dwCallBack, wMsg, (WPARAM)hDev, dwParam1);
608 break;
609 case DCB_FUNCTION:
610 ((LPDRVCALLBACK)dwCallBack)(hDev, wMsg, dwUser, dwParam1, dwParam2);
611 ret = TRUE;
612 break;
613 case DCB_EVENT:
614 ret = SetEvent((HANDLE)dwCallBack);
615 break;
616 #if 0
617 /* FIXME: for now only usable in mmsystem.dll16
618 * If needed, should be enabled back
619 */
620 case 6: /* I would dub it DCB_MMTHREADSIGNAL */
621 /* this is an undocumented DCB_ value used for mmThreads
622 * loword of dwCallBack contains the handle of the lpMMThd block
623 * which dwSignalCount has to be incremented
624 */
625 if (pFnGetMMThread16)
626 {
627 WINE_MMTHREAD* lpMMThd = pFnGetMMThread16(LOWORD(dwCallBack));
628
629 TRACE("mmThread (%04x, %p) !\n", LOWORD(dwCallBack), lpMMThd);
630 /* same as mmThreadSignal16 */
631 InterlockedIncrement(&lpMMThd->dwSignalCount);
632 SetEvent(lpMMThd->hEvent);
633 /* some other stuff on lpMMThd->hVxD */
634 }
635 break;
636 #endif
637 #if 0
638 case 4:
639 /* this is an undocumented DCB_ value for... I don't know */
640 break;
641 #endif
642 default:
643 WARN("Unknown callback type %d\n", uFlags & DCB_TYPEMASK);
644 return FALSE;
645 }
646 if (ret)
647 TRACE("Done\n");
648 else
649 WARN("Notification failure\n");
650 return ret;
651 }
652
653 /******************************************************************
654 * DRIVER_UnloadAll
655 *
656 *
657 */
DRIVER_UnloadAll(void)658 void DRIVER_UnloadAll(void)
659 {
660 LPWINE_DRIVER lpDrv;
661 LPWINE_DRIVER lpNextDrv = NULL;
662 unsigned count = 0;
663
664 restart:
665 EnterCriticalSection( &mmdriver_lock );
666
667 for (lpDrv = lpDrvItemList; lpDrv != NULL; lpDrv = lpNextDrv)
668 {
669 lpNextDrv = lpDrv->lpNextItem;
670
671 /* session instances will be unloaded automatically */
672 if (!(lpDrv->dwFlags & WINE_GDF_SESSION))
673 {
674 LeaveCriticalSection( &mmdriver_lock );
675 CloseDriver((HDRVR)lpDrv, 0, 0);
676 count++;
677 /* restart from the beginning of the list */
678 goto restart;
679 }
680 }
681
682 LeaveCriticalSection( &mmdriver_lock );
683
684 TRACE("Unloaded %u drivers\n", count);
685 }
686