windows/driver.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2
   3 /*
   4  * WINE Drivers functions
   5  *
   6  * Copyright 1994 Martin Ayotte
   7  * Copyright 1998 Marcus Meissner
   8  * Copyright 1999 Eric Pouech
   9  */
  10
  11 #include "wine/winuser16.h"
  12 #include "heap.h"
  13 #include "callback.h"
  14 #include "driver.h"
  15 #include "ldt.h"
  16 #include "module.h"
  17 #include "debug.h"
  18 #include <string.h>
  19
  20 static LPWINE_DRIVER    lpDrvItemList = NULL;
  21
  22 /* TODO list :
  23  *      - LoadModule count and clean up is not handled correctly (it's not a problem as
  24  *        long as FreeLibrary is not working correctly
  25  *      - msacm has some FIXME related to new code here...
  26  */
  27
  28 /**************************************************************************
  29  *                      LoadStartupDrivers                      [internal]
  30  */
  31 static void DRIVER_LoadStartupDrivers(void)
  32 {
  33     HDRVR16     hDrv;
  34     char        str[256];
  35     LPSTR       ptr;
  36
  37     if (GetPrivateProfileStringA("drivers", NULL, "", str, sizeof(str), "SYSTEM.INI") < 2) {
  38         ERR(driver,"Can't find drivers section in system.ini\n");
  39         return;
  40     }
  41
  42     for (ptr = str; lstrlenA(ptr) != 0; ptr += lstrlenA(ptr) + 1) {
  43         TRACE(driver, "str='%s'\n", ptr);
  44         hDrv = OpenDriver16(ptr, "drivers", 0L);
  45         TRACE(driver, "hDrv=%04x\n", hDrv);
  46     }
  47     TRACE(driver, "end of list !\n");
  48     return;
  49 }
  50
  51 /**************************************************************************
  52  *                      DRIVER_GetNumberOfModuleRefs            [internal]
  53  *
  54  * Returns the number of open drivers which share the same module.
  55  */
  56 static  WORD    DRIVER_GetNumberOfModuleRefs(LPWINE_DRIVER lpNewDrv)
  57 {
  58     LPWINE_DRIVER       lpDrv;
  59     DWORD               type = lpNewDrv->dwFlags & WINE_DI_TYPE_MASK;
  60     WORD                count = 0;
  61
  62     for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem) {
  63         if ((lpDrv->dwFlags & WINE_DI_TYPE_MASK) == type) {
  64             switch (type) {
  65             case WINE_DI_TYPE_16:
  66                 if (lpDrv->d.d16.hModule == lpNewDrv->d.d16.hModule)
  67                     count++;
  68                 break;
  69             case WINE_DI_TYPE_32:
  70                 if (lpDrv->d.d32.hModule == lpNewDrv->d.d32.hModule)
  71                     count++;
  72                 break;
  73             default:
  74                 FIXME(driver, "Unsupported driver type: %ld\n", type);
  75                 break;
  76             }
  77         }
  78     }
  79     return count;
  80 }
  81
  82 static  LPWINE_DRIVER   DRIVER_FindFromHDrvr16(HDRVR16 hDrvr)
  83 {
  84     LPWINE_DRIVER       lpDrv;
  85
  86     for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem) {
  87         if (lpDrv->hDriver16 == hDrvr) {
  88             return lpDrv;
  89         }
  90     }
  91     return NULL;
  92 }
  93
  94 /**************************************************************************
  95  *                              DRIVER_MapMsg16To32             [internal]
  96  *
  97  * Map a 16 bit driver message to a 32 bit driver message.
  98  *  1 : ok, some memory allocated, need to call DRIVER_UnMapMsg16To32
  99  *  0 : ok, no memory allocated
 100  * -1 : ko, unknown message
 101  * -2 : ko, memory problem
 102  */
 103 int     DRIVER_MapMsg16To32(WORD wMsg, DWORD* lParam1, DWORD* lParam2)
 104 {
 105     int ret = -1;
 106
 107     switch (wMsg) {
 108     case DRV_LOAD:
 109     case DRV_ENABLE:
 110     case DRV_DISABLE:
 111     case DRV_FREE:
 112     case DRV_QUERYCONFIGURE:
 113     case DRV_REMOVE:
 114     case DRV_EXITSESSION:
 115     case DRV_EXITAPPLICATION:
 116     case DRV_POWER:
 117         /* lParam1 and lParam2 are not used */
 118         ret = 0;
 119         break;
 120     case DRV_OPEN:
 121     case DRV_CLOSE:
 122         /* lParam1 is a NULL terminated string, lParam2 is unknown => may lead to some problem */
 123         if (*lParam1)
 124             *lParam1 = (DWORD)PTR_SEG_TO_LIN(*lParam1);
 125         ret = 0;
 126         break;
 127     case DRV_CONFIGURE:
 128     case DRV_INSTALL:
 129         /* lParam1 is a handle to a window (or not used), lParam2 is a pointer to DRVCONFIGINFO */
 130         if (*lParam2) {
 131             LPDRVCONFIGINFO     dci32 = HeapAlloc(SystemHeap, 0, sizeof(DRVCONFIGINFO));
 132             LPDRVCONFIGINFO16   dci16 = PTR_SEG_TO_LIN(*lParam2);
 133
 134             if (dci32) {
 135                 dci32->dwDCISize = sizeof(DRVCONFIGINFO);
 136                 dci32->lpszDCISectionName = HEAP_strdupAtoW(SystemHeap, 0, PTR_SEG_TO_LIN(dci16->lpszDCISectionName));
 137                 dci32->lpszDCIAliasName   = HEAP_strdupAtoW(SystemHeap, 0, PTR_SEG_TO_LIN(dci16->lpszDCIAliasName));
 138                 if (dci32->lpszDCISectionName == NULL || dci32->lpszDCIAliasName == NULL)
 139                     return -2;
 140             } else {
 141                 return -2;
 142             }
 143             *lParam2 = (DWORD)dci32;
 144             ret = 1;
 145         } else {
 146             ret = 0;
 147         }
 148         break;
 149     default:
 150         FIXME(driver, "Unknown message 0x%04x\n", wMsg);
 151     }
 152     return ret;
 153 }
 154
 155 /**************************************************************************
 156  *                              DRIVER_MapMsg16To32             [internal]
 157  *
 158  * UnMap a 16 bit driver message to a 32 bit driver message.
 159  *  0 : ok
 160  * -1 : ko
 161  * -2 : ko, memory problem
 162  */
 163 int     DRIVER_UnMapMsg16To32(WORD wMsg, DWORD lParam1, DWORD lParam2)
 164 {
 165     int ret = -1;
 166
 167     switch (wMsg) {
 168     case DRV_LOAD:
 169     case DRV_ENABLE:
 170     case DRV_DISABLE:
 171     case DRV_FREE:
 172     case DRV_QUERYCONFIGURE:
 173     case DRV_REMOVE:
 174     case DRV_EXITSESSION:
 175     case DRV_EXITAPPLICATION:
 176     case DRV_POWER:
 177         /* lParam1 and lParam2 are not used */
 178     case DRV_OPEN:
 179     case DRV_CLOSE:
 180         /* lParam1 is a NULL terminated string, lParam2 is unknown => may lead to some problem */
 181         ret = 0;
 182         break;
 183     case DRV_CONFIGURE:
 184     case DRV_INSTALL:
 185         /* lParam1 is a handle to a window (or not used), lParam2 is a pointer to DRVCONFIGINFO, lParam2 */
 186         if (lParam2) {
 187             LPDRVCONFIGINFO     dci32 = (LPDRVCONFIGINFO)lParam2;
 188             HeapFree(SystemHeap, 0, (LPVOID)dci32->lpszDCISectionName);
 189             HeapFree(SystemHeap, 0, (LPVOID)dci32->lpszDCIAliasName);
 190             HeapFree(SystemHeap, 0, dci32);
 191         }
 192         ret = 0;
 193         break;
 194     default:
 195         FIXME(driver, "Unknown message 0x%04x\n", wMsg);
 196     }
 197     return ret;
 198 }
 199
 200 /**************************************************************************
 201  *                              DRIVER_MapMsg32To16             [internal]
 202  *
 203  * Map a 32 bit driver message to a 16 bit driver message.
 204  *  1 : ok, some memory allocated, need to call DRIVER_UnMapMsg32To16
 205  *  0 : ok, no memory allocated
 206  * -1 : ko, unknown message
 207  * -2 : ko, memory problem
 208  */
 209 int     DRIVER_MapMsg32To16(WORD wMsg, DWORD* lParam1, DWORD* lParam2)
 210 {
 211     int ret = -1;
 212
 213     switch (wMsg) {
 214     case DRV_LOAD:
 215     case DRV_ENABLE:
 216     case DRV_DISABLE:
 217     case DRV_FREE:
 218     case DRV_QUERYCONFIGURE:
 219     case DRV_REMOVE:
 220     case DRV_EXITSESSION:
 221     case DRV_EXITAPPLICATION:
 222     case DRV_POWER:
 223         /* lParam1 and lParam2 are not used */
 224         ret = 0;
 225         break;
 226     case DRV_OPEN:
 227     case DRV_CLOSE:
 228         /* lParam1 is a NULL terminated string, lParam2 is unknown => may lead to some problem */
 229         if (*lParam1) {
 230             LPSTR str = SEGPTR_STRDUP((LPSTR)*lParam1);
 231             if (str) {
 232                 *lParam1 = (LPARAM)SEGPTR_GET(str);
 233                 ret = 0;
 234             } else {
 235                 ret = -2;
 236             }
 237         } else {
 238             ret = 0;
 239         }
 240         break;
 241     case DRV_CONFIGURE:
 242     case DRV_INSTALL:
 243         /* lParam1 is a handle to a window (or not used), lParam2 is a pointer to DRVCONFIGINFO */
 244         if (*lParam2) {
 245             LPDRVCONFIGINFO16   dci16 = (LPDRVCONFIGINFO16)SEGPTR_ALLOC(sizeof(DRVCONFIGINFO16));
 246             LPDRVCONFIGINFO     dci32 = (LPDRVCONFIGINFO)lParam2;
 247
 248             if (dci16) {
 249                 LPSTR   str1, str2;
 250
 251                 dci16->dwDCISize = sizeof(DRVCONFIGINFO16);
 252
 253                 if ((str1 = HEAP_strdupWtoA(SystemHeap, 0, dci32->lpszDCISectionName)) != NULL &&
 254                     (str2 = SEGPTR_STRDUP(str1)) != NULL) {
 255                     dci16->lpszDCISectionName = (LPSTR)SEGPTR_GET(str2);
 256                     HeapFree(SystemHeap, 0, str1);
 257                 } else {
 258                     return -2;
 259                 }
 260                 if ((str1 = HEAP_strdupWtoA(SystemHeap, 0, dci32->lpszDCIAliasName)) != NULL &&
 261                     (str2 = SEGPTR_STRDUP(str1)) != NULL) {
 262                     dci16->lpszDCIAliasName = (LPSTR)SEGPTR_GET(str2);
 263                     HeapFree(SystemHeap, 0, str1);
 264                 } else {
 265                     return -2;
 266                 }
 267             } else {
 268                 return -2;
 269             }
 270             *lParam2 = (LPARAM)SEGPTR_GET(dci16);
 271             ret = 1;
 272         } else {
 273             ret = 0;
 274         }
 275         break;
 276     default:
 277         FIXME(driver, "Unknown message 0x%04x\n", wMsg);
 278     }
 279     return ret;
 280 }
 281
 282 /**************************************************************************
 283  *                              DRIVER_MapMsg32To16             [internal]
 284  *
 285  * UnMap a 32 bit driver message to a 16 bit driver message.
 286  *  0 : ok
 287  * -1 : ko
 288  * -2 : ko, memory problem
 289  */
 290 int     DRIVER_UnMapMsg32To16(WORD wMsg, DWORD lParam1, DWORD lParam2)
 291 {
 292     int ret = -1;
 293
 294     switch (wMsg) {
 295     case DRV_LOAD:
 296     case DRV_ENABLE:
 297     case DRV_DISABLE:
 298     case DRV_FREE:
 299     case DRV_QUERYCONFIGURE:
 300     case DRV_REMOVE:
 301     case DRV_EXITSESSION:
 302     case DRV_EXITAPPLICATION:
 303     case DRV_POWER:
 304         /* lParam1 and lParam2 are not used */
 305     case DRV_OPEN:
 306     case DRV_CLOSE:
 307         /* lParam1 is a NULL terminated string, lParam2 is unknown => may lead to some problem */
 308         if (lParam1) SEGPTR_FREE(PTR_SEG_TO_LIN(lParam1));
 309         ret = 0;
 310         break;
 311     case DRV_CONFIGURE:
 312     case DRV_INSTALL:
 313         /* lParam1 is a handle to a window (or not used), lParam2 is a pointer to DRVCONFIGINFO, lParam2 */
 314         if (lParam2) {
 315             LPDRVCONFIGINFO16   dci16 = (LPDRVCONFIGINFO16)PTR_SEG_TO_LIN(lParam2);
 316
 317             SEGPTR_FREE(PTR_SEG_TO_LIN(dci16->lpszDCISectionName));
 318             SEGPTR_FREE(PTR_SEG_TO_LIN(dci16->lpszDCIAliasName));
 319             SEGPTR_FREE(dci16);
 320         }
 321         ret = 0;
 322         break;
 323     default:
 324         FIXME(driver, "Unknown message 0x%04x\n", wMsg);
 325     }
 326     return ret;
 327 }
 328
 329 /**************************************************************************
 330  *                              SendDriverMessage               [USER.251]
 331  */
 332 LRESULT WINAPI SendDriverMessage16(HDRVR16 hDriver, UINT16 msg, LPARAM lParam1,
 333                                    LPARAM lParam2)
 334 {
 335     LPWINE_DRIVER       lpDrv;
 336     LRESULT             retval = 0;
 337     int                 mapRet;
 338
 339     TRACE(driver, "(%04x, %04X, %08lX, %08lX)\n", hDriver, msg, lParam1, lParam2);
 340
 341     lpDrv = (LPWINE_DRIVER)DRIVER_FindFromHDrvr16(hDriver);
 342     if (lpDrv != NULL && lpDrv->hDriver16 == hDriver) {
 343         switch (lpDrv->dwFlags & WINE_DI_TYPE_MASK) {
 344         case WINE_DI_TYPE_16:
 345             retval = Callbacks->CallDriverProc(lpDrv->d.d16.lpDrvProc, lpDrv->dwDriverID, hDriver,
 346                                                msg, lParam1, lParam2);
 347             break;
 348         case WINE_DI_TYPE_32:
 349             mapRet = DRIVER_MapMsg16To32(msg, &lParam1, &lParam2);
 350             if (mapRet >= 0) {
 351                 retval = lpDrv->d.d32.lpDrvProc(lpDrv->dwDriverID, hDriver, msg, lParam1, lParam2);
 352                 if (mapRet > 1) {
 353                     DRIVER_UnMapMsg16To32(msg, lParam1, lParam2);
 354                 }
 355             } else {
 356                 retval = 0;
 357             }
 358             break;
 359         default:
 360             FIXME(driver, "Unknown driver type %08lx\n", lpDrv->dwFlags);
 361             break;
 362         }
 363     }
 364
 365     TRACE(driver, "retval = %ld\n", retval);
 366     return retval;
 367 }
 368
 369 /**************************************************************************
 370  *                              SendDriverMessage               [WINMM.19]
 371  */
 372 LRESULT WINAPI SendDriverMessage(HDRVR hDriver, UINT msg, LPARAM lParam1,
 373                                    LPARAM lParam2)
 374 {
 375     LPWINE_DRIVER       lpDrv = (LPWINE_DRIVER)hDriver;
 376     LRESULT             retval = 0;
 377     int                 mapRet;
 378
 379     TRACE(driver, "(%04x, %04X, %08lX, %08lX)\n", hDriver, msg, lParam1, lParam2);
 380
 381     if (lpDrv != NULL) {
 382         switch (lpDrv->dwFlags & WINE_DI_TYPE_MASK) {
 383         case WINE_DI_TYPE_16:
 384             mapRet = DRIVER_MapMsg32To16(msg, &lParam1, &lParam2);
 385             if (mapRet >= 0) {
 386                 retval = Callbacks->CallDriverProc(lpDrv->d.d16.lpDrvProc, lpDrv->dwDriverID, hDriver,
 387                                                    msg, lParam1, lParam2);
 388                 if (mapRet > 1) {
 389                     DRIVER_UnMapMsg32To16(msg, lParam1, lParam2);
 390                 }
 391             } else {
 392                 retval = 0;
 393             }
 394             break;
 395         case WINE_DI_TYPE_32:
 396             retval = lpDrv->d.d32.lpDrvProc(lpDrv->dwDriverID, hDriver, msg, lParam1, lParam2);
 397             break;
 398         default:
 399             FIXME(driver, "Unknown driver type %08lx\n", lpDrv->dwFlags);
 400             break;
 401         }
 402     }
 403     TRACE(driver, "retval = %ld\n", retval);
 404
 405     return retval;
 406 }
 407
 408 /**************************************************************************
 409  *                              DRIVER_AddToList                [internal]
 410  *
 411  * Adds a driver struct to the list of open drivers.
 412  * Generates all the logic to handle driver creation / open.
 413  */
 414 static  BOOL    DRIVER_AddToList(LPWINE_DRIVER lpNewDrv, LPARAM lParam)
 415 {
 416     /* First driver to be loaded for this module, need to load correctly the module */
 417     if (DRIVER_GetNumberOfModuleRefs(lpNewDrv) == 0) {
 418         if (SendDriverMessage((HDRVR)lpNewDrv, DRV_LOAD,   0L, 0L) != DRV_SUCCESS) {
 419             TRACE(driver, "DRV_LOAD failed on driver 0x%08lx\n", (DWORD)lpNewDrv);
 420             return FALSE;
 421         }
 422         if (SendDriverMessage((HDRVR)lpNewDrv, DRV_ENABLE, 0L, 0L) != DRV_SUCCESS) {
 423             TRACE(driver, "DRV_ENABLE failed on driver 0x%08lx\n", (DWORD)lpNewDrv);
 424             return FALSE;
 425         }
 426     }
 427     /* Now just open a new instance of a driver on this module */
 428     /* Handle of this lParam is rather touchy :
 429      * + we know here if it comes from 16 or 32 bit from lpDrv->dwFlags
 430      * + but we don't know its content...
 431      * + and we send it through SendDriverMessage32 as a 32 bit value...
 432      * => so we might have trouble with this little guy (FIXME ???)
 433      */
 434     lpNewDrv->dwDriverID = SendDriverMessage((HDRVR)lpNewDrv, DRV_OPEN, (DWORD)lpNewDrv->szAliasName, lParam);
 435     if (lpNewDrv->dwDriverID == 0) {
 436         TRACE(driver, "DRV_OPEN failed on driver 0x%08lx\n", (DWORD)lpNewDrv);
 437         return FALSE;
 438     }
 439
 440     lpNewDrv->lpNextItem = NULL;
 441     if (lpDrvItemList == NULL) {
 442         lpDrvItemList = lpNewDrv;
 443         lpNewDrv->lpPrevItem = NULL;
 444     } else {
 445         LPWINE_DRIVER   lpDrv = lpDrvItemList;  /* find end of list */
 446         while (lpDrv->lpNextItem != NULL)
 447             lpDrv = lpDrv->lpNextItem;
 448
 449         lpDrv->lpNextItem = lpNewDrv;
 450         lpNewDrv->lpPrevItem = lpDrv;
 451     }
 452     return TRUE;
 453 }
 454
 455 /**************************************************************************
 456  *                              DRIVER_RemoveFromList           [internal]
 457  *
 458  * Generates all the logic to handle driver closure / deletion
 459  * Removes a driver struct to the list of open drivers.
 460  */
 461 static  BOOL    DRIVER_RemoveFromList(LPWINE_DRIVER lpDrv, LPARAM lParam1, LPARAM lParam2)
 462 {
 463     SendDriverMessage((HDRVR)lpDrv, DRV_CLOSE, lParam1, lParam2);
 464
 465     lpDrv->dwDriverID = 0;
 466     if (DRIVER_GetNumberOfModuleRefs(lpDrv) == 1) {
 467         SendDriverMessage16((HDRVR)lpDrv, DRV_DISABLE, 0L, 0L);
 468         SendDriverMessage16((HDRVR)lpDrv, DRV_FREE,    0L, 0L);
 469
 470         if (lpDrv->lpPrevItem)
 471             lpDrv->lpPrevItem->lpNextItem = lpDrv->lpNextItem;
 472         else
 473             lpDrvItemList = lpDrv->lpNextItem;
 474         if (lpDrv->lpNextItem)
 475             lpDrv->lpNextItem->lpPrevItem = lpDrv->lpPrevItem;
 476     }
 477     return TRUE;
 478 }
 479
 480 static  HDRVR16 DRIVER_CreateDrvr16()
 481 {
 482     static      WORD    DRIVER_hDrvr16Counter = 0;
 483
 484     while (DRIVER_FindFromHDrvr16(++DRIVER_hDrvr16Counter));
 485     return DRIVER_hDrvr16Counter;
 486 }
 487
 488 /**************************************************************************
 489  *                              DRIVER_RegisterDriver16         [internal]
 490  *
 491  * Creates all the WINE internal representations for a 16 bit driver.
 492  * The driver is also open by sending the correct messages.
 493  */
 494 LPWINE_DRIVER DRIVER_RegisterDriver16(LPCSTR lpName, HMODULE16 hModule, DRIVERPROC16 lpProc, LPARAM lParam)
 495 {
 496     LPWINE_DRIVER       lpDrv;
 497
 498     lpDrv = HeapAlloc(SystemHeap, 0, sizeof(WINE_DRIVER));
 499     if (lpDrv != NULL) {
 500         lpDrv->dwFlags         = WINE_DI_TYPE_16;
 501         lpDrv->dwDriverID      = 0;
 502         lpDrv->hDriver16       = DRIVER_CreateDrvr16();
 503         strncpy(lpDrv->szAliasName, lpName, sizeof(lpDrv->szAliasName));
 504         lpDrv->d.d16.hModule   = hModule;
 505         lpDrv->d.d16.lpDrvProc = lpProc;
 506
 507         if (!DRIVER_AddToList(lpDrv, lParam)) {
 508             HeapFree(SystemHeap, 0, lpDrv);
 509             lpDrv = NULL;
 510         }
 511     }
 512     return lpDrv;
 513 }
 514
 515 /**************************************************************************
 516  *                              DRIVER_RegisterDriver32         [internal]
 517  *
 518  * Creates all the WINE internal representations for a 32 bit driver.
 519  * The driver is also open by sending the correct messages.
 520  */
 521 LPWINE_DRIVER DRIVER_RegisterDriver32(LPCSTR lpName, HMODULE hModule, DRIVERPROC lpProc, LPARAM lParam)
 522 {
 523     LPWINE_DRIVER       lpDrv;
 524
 525     lpDrv = HeapAlloc(SystemHeap, 0, sizeof(WINE_DRIVER));
 526     if (lpDrv != NULL) {
 527         lpDrv->dwFlags          = WINE_DI_TYPE_32;
 528         lpDrv->dwDriverID       = 0;
 529         lpDrv->hDriver16        = DRIVER_CreateDrvr16();
 530         strncpy(lpDrv->szAliasName, lpName, sizeof(lpDrv->szAliasName));
 531         lpDrv->d.d32.hModule    = hModule;
 532         lpDrv->d.d32.lpDrvProc  = lpProc;
 533
 534         if (!DRIVER_AddToList(lpDrv, lParam)) {
 535             HeapFree(SystemHeap, 0, lpDrv);
 536             lpDrv = NULL;
 537         }
 538     }
 539     return lpDrv;
 540 }
 541
 542 /**************************************************************************
 543  *                              DRIVER_TryOpenDriver32          [internal]
 544  *
 545  * Tries to load a 16 bit driver whose DLL's (module) name is lpFileName.
 546  */
 547 static  HDRVR16 DRIVER_TryOpenDriver16(LPCSTR lpFileName, LPARAM lParam)
 548 {
 549     LPWINE_DRIVER       lpDrv = NULL;
 550     LPCSTR              lpSFN;
 551     HMODULE16           hModule;
 552     DRIVERPROC16        lpProc;
 553
 554     TRACE(driver,"('%s', %08lX);\n", lpFileName, lParam);
 555
 556     if (lstrlenA(lpFileName) < 1)
 557         return 0;
 558
 559     lpSFN = strrchr(lpFileName, '\\');
 560     lpSFN = (lpSFN) ? (lpSFN + 1) : lpFileName;
 561
 562     if ((hModule = LoadModule16(lpFileName, (LPVOID)-1)) != 0) {
 563         if ((lpProc = (DRIVERPROC16)WIN32_GetProcAddress16(hModule, "DRIVERPROC")) != NULL) {
 564             lpDrv = DRIVER_RegisterDriver16(lpSFN, hModule, lpProc, lParam);
 565         } else {
 566             TRACE(driver, "No DriverProc found\n");
 567         }
 568     } else {
 569         TRACE(driver, "Unable to load module (%s)\n", lpFileName);
 570     }
 571     return lpDrv ? lpDrv->hDriver16 : 0;
 572 }
 573
 574 /**************************************************************************
 575  *                              DRIVER_TryOpenDriver32          [internal]
 576  *
 577  * Tries to load a 32 bit driver whose DLL's (module) name is lpFileName.
 578  */
 579 static  HDRVR   DRIVER_TryOpenDriver32(LPCSTR lpFileName, LPARAM lParam)
 580 {
 581     LPWINE_DRIVER       lpDrv = NULL;
 582     LPCSTR              lpSFN;
 583     HMODULE             hModule;
 584     DRIVERPROC  lpProc;
 585
 586     TRACE(driver,"('%s', %08lX);\n", lpFileName, lParam);
 587
 588     if (lstrlenA(lpFileName) < 1)
 589         return 0;
 590
 591     lpSFN = strrchr(lpFileName, '\\');
 592     lpSFN = (lpSFN) ? (lpSFN + 1) : lpFileName;
 593
 594     if ((hModule = LoadLibraryA(lpFileName)) != 0) {
 595         if ((lpProc = GetProcAddress(hModule, "DriverProc")) != NULL) {
 596             lpDrv = DRIVER_RegisterDriver32(lpSFN, hModule, lpProc, lParam);
 597         } else {
 598             TRACE(driver, "No DriverProc found\n");
 599         }
 600     } else {
 601         TRACE(driver, "Unable to load module (%s)\n", lpFileName);
 602     }
 603     return (HDRVR)lpDrv;
 604 }
 605
 606 /**************************************************************************
 607  *                              OpenDriver16                    [USER.252]
 608  */
 609 HDRVR16 WINAPI OpenDriver16(LPCSTR lpDriverName, LPCSTR lpSectionName, LPARAM lParam)
 610 {
 611     HDRVR16             hDriver = 0;
 612     char                drvName[128];
 613
 614     TRACE(driver,"('%s', '%s', %08lX);\n", lpDriverName, lpSectionName, lParam);
 615
 616     if (lpSectionName == NULL) {
 617         hDriver = DRIVER_TryOpenDriver16(lpDriverName, lParam);
 618         if (!hDriver) {
 619             /* in case hDriver is NULL, search in Drivers32 section */
 620             lpSectionName = "Drivers";
 621         }
 622     }
 623     if (!hDriver && GetPrivateProfileStringA(lpSectionName, lpDriverName, "",
 624                                                drvName, sizeof(drvName), "SYSTEM.INI") > 0) {
 625         hDriver = DRIVER_TryOpenDriver16(drvName, lParam);
 626     }
 627     return hDriver;
 628 }
 629
 630 /**************************************************************************
 631  *                              OpenDriver32A                   [WINMM.15]
 632  * (0,1,DRV_LOAD  ,0       ,0)
 633  * (0,1,DRV_ENABLE,0       ,0)
 634  * (0,1,DRV_OPEN  ,buf[256],0)
 635  */
 636 HDRVR WINAPI OpenDriverA(LPCSTR lpDriverName, LPCSTR lpSectionName, LPARAM lParam)
 637 {
 638     HDRVR               hDriver = 0;
 639     char                drvName[128];
 640
 641     TRACE(driver,"('%s', '%s', %08lX);\n", lpDriverName, lpSectionName, lParam);
 642
 643     if (lpSectionName == NULL) {
 644         strncpy(drvName, lpDriverName, sizeof(drvName));
 645         hDriver = DRIVER_TryOpenDriver32(lpDriverName, lParam);
 646         if (!hDriver) {
 647             /* FIXME what has to be done on lParam ?? */
 648             hDriver = DRIVER_TryOpenDriver16(lpDriverName, lParam);
 649         }
 650         if (!hDriver) {
 651             if (GetPrivateProfileStringA("Drivers32", lpDriverName, "", drvName,
 652                                            sizeof(drvName), "SYSTEM.INI")) {
 653                 hDriver = DRIVER_TryOpenDriver32(drvName, lParam);
 654
 655             }
 656         }
 657         if (!hDriver) {
 658             if (GetPrivateProfileStringA("Drivers", lpDriverName, "", drvName,
 659                                            sizeof(drvName), "SYSTEM.INI")) {
 660                 hDriver = DRIVER_TryOpenDriver16(drvName, lParam);
 661
 662             }
 663         }
 664     } else {
 665         if (GetPrivateProfileStringA(lpSectionName, lpDriverName, "", drvName,
 666                                        sizeof(drvName), "SYSTEM.INI")) {
 667             hDriver = DRIVER_TryOpenDriver32(drvName, lParam);
 668         }
 669     }
 670
 671     TRACE(driver, "retval='%08x'\n", hDriver);
 672     return hDriver;
 673 }
 674
 675 /**************************************************************************
 676  *                              OpenDriver32W                   [WINMM.15]
 677  */
 678 HDRVR WINAPI OpenDriverW(LPCWSTR lpDriverName, LPCWSTR lpSectionName, LPARAM lParam)
 679 {
 680     LPSTR       dn = HEAP_strdupWtoA(GetProcessHeap(), 0, lpDriverName);
 681     LPSTR       sn = HEAP_strdupWtoA(GetProcessHeap(), 0, lpSectionName);
 682     HDRVR       ret = OpenDriverA(dn, sn, lParam);
 683
 684     if (dn) HeapFree(GetProcessHeap(), 0, dn);
 685     if (sn) HeapFree(GetProcessHeap(), 0, sn);
 686     return ret;
 687 }
 688
 689 /**************************************************************************
 690  *                      CloseDriver                             [USER.253]
 691  */
 692 LRESULT WINAPI CloseDriver16(HDRVR16 hDrvr, LPARAM lParam1, LPARAM lParam2)
 693 {
 694     LPWINE_DRIVER lpDrv;
 695
 696     TRACE(driver, "(%04x, %08lX, %08lX);\n", hDrvr, lParam1, lParam2);
 697
 698     lpDrv = DRIVER_FindFromHDrvr16(hDrvr);
 699     if (lpDrv != NULL && lpDrv->hDriver16 == hDrvr) {
 700         if (DRIVER_RemoveFromList(lpDrv, lParam1, lParam2)) {
 701             TRACE(driver, "hDrvr=%04x closed !\n", hDrvr);
 702             return TRUE;
 703         }
 704     }
 705     return FALSE;
 706 }
 707 /**************************************************************************
 708  *                      CloseDriver32                           [WINMM.4]
 709  */
 710 LRESULT WINAPI CloseDriver(HDRVR hDrvr, LPARAM lParam1, LPARAM lParam2)
 711 {
 712     LPWINE_DRIVER lpDrv;
 713
 714     TRACE(driver, "(%04x, %08lX, %08lX);\n", hDrvr, lParam1, lParam2);
 715
 716     lpDrv = (LPWINE_DRIVER)hDrvr;
 717     if (lpDrv != NULL) {
 718         if (DRIVER_RemoveFromList(lpDrv, lParam1, lParam2)) {
 719             TRACE(driver, "hDrvr=%08x closed !\n", hDrvr);
 720             return TRUE;
 721         }
 722     }
 723     return FALSE;
 724 }
 725
 726 /**************************************************************************
 727  *                              GetDriverModuleHandle   [USER.254]
 728  */
 729 HMODULE16 WINAPI GetDriverModuleHandle16(HDRVR16 hDrvr)
 730 {
 731     LPWINE_DRIVER       lpDrv;
 732     HMODULE16           hModule = 0;
 733
 734     TRACE(driver, "(%04x);\n", hDrvr);
 735
 736     lpDrv = DRIVER_FindFromHDrvr16(hDrvr);
 737     if (lpDrv != NULL && lpDrv->hDriver16 == hDrvr &&
 738         (lpDrv->dwFlags & WINE_DI_TYPE_MASK) == WINE_DI_TYPE_16) {
 739         hModule = lpDrv->d.d16.hModule;
 740     }
 741     return hModule;
 742 }
 743
 744 /**************************************************************************
 745  *                              GetDriverModuleHandle   [USER.254]
 746  */
 747 HMODULE WINAPI GetDriverModuleHandle(HDRVR hDrvr)
 748 {
 749     LPWINE_DRIVER       lpDrv = (LPWINE_DRIVER)hDrvr;
 750     HMODULE             hModule = 0;
 751
 752     TRACE(driver, "(%04x);\n", hDrvr);
 753
 754     if (lpDrv != NULL && (lpDrv->dwFlags & WINE_DI_TYPE_MASK) == WINE_DI_TYPE_32) {
 755         hModule = lpDrv->d.d32.hModule;
 756     }
 757     return hModule;
 758 }
 759
 760 /**************************************************************************
 761  *                              DefDriverProc16                 [USER.255]
 762  */
 763 LRESULT WINAPI DefDriverProc16(DWORD dwDevID, HDRVR16 hDriv, UINT16 wMsg,
 764                                LPARAM lParam1, LPARAM lParam2)
 765 {
 766     switch(wMsg) {
 767     case DRV_LOAD:              return (LRESULT)0L;
 768     case DRV_FREE:              return (LRESULT)0L;
 769     case DRV_OPEN:              return (LRESULT)0L;
 770     case DRV_CLOSE:             return (LRESULT)0L;
 771     case DRV_ENABLE:            return (LRESULT)0L;
 772     case DRV_DISABLE:           return (LRESULT)0L;
 773     case DRV_QUERYCONFIGURE:    return (LRESULT)0L;
 774     case DRV_CONFIGURE:         MessageBoxA(0, "Driver isn't configurable !", "Wine Driver", MB_OK); return (LRESULT)0L;
 775     case DRV_INSTALL:           return (LRESULT)DRVCNF_RESTART;
 776     case DRV_REMOVE:            return (LRESULT)DRVCNF_RESTART;
 777     default:                    return (LRESULT)0L;
 778     }
 779 }
 780
 781 /**************************************************************************
 782  *                              GetDriverInfo                   [USER.256]
 783  */
 784 BOOL16 WINAPI GetDriverInfo16(HDRVR16 hDrvr, LPDRIVERINFOSTRUCT16 lpDrvInfo)
 785 {
 786     LPWINE_DRIVER       lpDrv;
 787     BOOL16              ret = FALSE;
 788
 789     TRACE(driver, "(%04x, %p);\n", hDrvr, lpDrvInfo);
 790
 791     if (lpDrvInfo == NULL ||
 792         lpDrvInfo->length != sizeof(DRIVERINFOSTRUCT16)) return FALSE;
 793
 794     lpDrv = DRIVER_FindFromHDrvr16(hDrvr);
 795     if (lpDrv != NULL && lpDrv->hDriver16 == hDrvr &&
 796         (lpDrv->dwFlags & WINE_DI_TYPE_MASK) == WINE_DI_TYPE_16) {
 797         lpDrvInfo->hDriver = lpDrv->hDriver16;
 798         lpDrvInfo->hModule = lpDrv->d.d16.hModule;
 799         strncpy(lpDrvInfo->szAliasName, lpDrv->szAliasName, sizeof(lpDrvInfo->szAliasName));
 800         ret = TRUE;
 801     }
 802
 803     return ret;
 804 }
 805
 806 /**************************************************************************
 807  *                              GetNextDriver                   [USER.257]
 808  */
 809 HDRVR16 WINAPI GetNextDriver16(HDRVR16 hDrvr, DWORD dwFlags)
 810 {
 811     HDRVR16             hRetDrv = 0;
 812     LPWINE_DRIVER       lpDrv;
 813
 814     TRACE(driver, "(%04x, %08lX);\n", hDrvr, dwFlags);
 815
 816     if (hDrvr == 0) {
 817         if (lpDrvItemList == NULL) {
 818             FIXME(driver, "drivers list empty !\n");
 819             /* FIXME: code was using DRIVER_LoadStartupDrivers(); before ?
 820              * I (EPP) don't quite understand this
 821              */
 822             if (lpDrvItemList == NULL) return 0;
 823         }
 824         lpDrv = lpDrvItemList;
 825         if (dwFlags & GND_REVERSE) {
 826             while (lpDrv->lpNextItem)
 827                 lpDrv = lpDrv->lpNextItem;
 828         }
 829     } else {
 830         lpDrv = DRIVER_FindFromHDrvr16(hDrvr);
 831         if (lpDrv != NULL) {
 832             if (dwFlags & GND_REVERSE) {
 833                 lpDrv = (lpDrv->lpPrevItem) ? lpDrv->lpPrevItem : NULL;
 834             } else {
 835                 lpDrv = (lpDrv->lpNextItem) ? lpDrv->lpNextItem : NULL;
 836             }
 837         }
 838     }
 839
 840     hRetDrv = (lpDrv) ? lpDrv->hDriver16 : (HDRVR16)0;
 841     TRACE(driver, "return %04x !\n", hRetDrv);
 842     return hRetDrv;
 843 }
 844