/* * WINE Drivers functions * * Copyright 1994 Martin Ayotte * Copyright 1998 Marcus Meissner * Copyright 1999,2000 Eric Pouech * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA * * TODO: * - LoadModule count and clean up is not handled correctly (it's not a * problem as long as FreeLibrary is not working correctly) */ #include <stdarg.h> #include <string.h> #include "windef.h" #include "winbase.h" #include "wine/winbase16.h" #include "wingdi.h" #include "winuser.h" #include "wownt32.h" #include "mmddk.h" #include "wine/mmsystem16.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(driver); typedef struct tagWINE_DRIVER { /* as usual LPWINE_DRIVER == hDriver32 */ HDRVR16 hDriver16; HMODULE16 hModule16; DRIVERPROC16 lpDrvProc; DWORD dwDriverID; struct tagWINE_DRIVER* lpPrevItem; struct tagWINE_DRIVER* lpNextItem; } WINE_DRIVER, *LPWINE_DRIVER; static LPWINE_DRIVER lpDrvItemList = NULL; /************************************************************************** * DRIVER_GetNumberOfModuleRefs [internal] * * Returns the number of open drivers which share the same module. */ static WORD DRIVER_GetNumberOfModuleRefs(LPWINE_DRIVER lpNewDrv) { LPWINE_DRIVER lpDrv; WORD count = 0; for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem) { if (lpDrv->hModule16 == lpNewDrv->hModule16) { count++; } } return count; } /************************************************************************** * DRIVER_FindFromHDrvr16 [internal] * * From a hDrvr being 16 bits, returns the WINE internal structure. */ static LPWINE_DRIVER DRIVER_FindFromHDrvr16(HDRVR16 hDrvr) { LPWINE_DRIVER lpDrv; for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem) { if (lpDrv->hDriver16 == hDrvr) { break; } } return lpDrv; } /************************************************************************** * DRIVER_SendMessage [internal] */ static inline LRESULT DRIVER_SendMessage(LPWINE_DRIVER lpDrv, UINT16 msg, LPARAM lParam1, LPARAM lParam2) { WORD args[8]; DWORD ret; TRACE("Before CallDriverProc proc=%p driverID=%08x wMsg=%04x p1=%08lx p2=%08lx\n", lpDrv->lpDrvProc, lpDrv->dwDriverID, msg, lParam1, lParam2); args[7] = HIWORD(lpDrv->dwDriverID); args[6] = LOWORD(lpDrv->dwDriverID); args[5] = lpDrv->hDriver16; args[4] = msg; args[3] = HIWORD(lParam1); args[2] = LOWORD(lParam1); args[1] = HIWORD(lParam2); args[0] = LOWORD(lParam2); WOWCallback16Ex( (DWORD)lpDrv->lpDrvProc, WCB16_PASCAL, sizeof(args), args, &ret ); return ret; } /************************************************************************** * DrvSendMessage (MMSYSTEM.1102) */ LRESULT WINAPI DrvSendMessage16(HDRVR16 hDriver, UINT16 msg, LPARAM lParam1, LPARAM lParam2) { LPWINE_DRIVER lpDrv; LRESULT retval = 0; TRACE("(%04x, %04X, %08lX, %08lX)\n", hDriver, msg, lParam1, lParam2); if ((lpDrv = DRIVER_FindFromHDrvr16(hDriver)) != NULL) { retval = DRIVER_SendMessage(lpDrv, msg, lParam1, lParam2); } else { WARN("Bad driver handle %u\n", hDriver); } TRACE("retval = %ld\n", retval); return retval; } /************************************************************************** * DRIVER_RemoveFromList [internal] * * Generates all the logic to handle driver closure / deletion * Removes a driver struct to the list of open drivers. */ static BOOL DRIVER_RemoveFromList(LPWINE_DRIVER lpDrv) { lpDrv->dwDriverID = 0; if (DRIVER_GetNumberOfModuleRefs(lpDrv) == 1) { DRIVER_SendMessage(lpDrv, DRV_DISABLE, 0L, 0L); DRIVER_SendMessage(lpDrv, DRV_FREE, 0L, 0L); } if (lpDrv->lpPrevItem) lpDrv->lpPrevItem->lpNextItem = lpDrv->lpNextItem; else lpDrvItemList = lpDrv->lpNextItem; if (lpDrv->lpNextItem) lpDrv->lpNextItem->lpPrevItem = lpDrv->lpPrevItem; return TRUE; } /************************************************************************** * DRIVER_AddToList [internal] * * Adds a driver struct to the list of open drivers. * Generates all the logic to handle driver creation / open. */ static BOOL DRIVER_AddToList(LPWINE_DRIVER lpNewDrv, LPARAM lParam1, LPARAM lParam2) { /* First driver to be loaded for this module, need to load correctly the module */ if (DRIVER_GetNumberOfModuleRefs(lpNewDrv) == 0) { if (DRIVER_SendMessage(lpNewDrv, DRV_LOAD, 0L, 0L) != DRV_SUCCESS) { TRACE("DRV_LOAD failed on driver %p\n", lpNewDrv); return FALSE; } /* returned value is not checked */ DRIVER_SendMessage(lpNewDrv, DRV_ENABLE, 0L, 0L); } lpNewDrv->lpNextItem = NULL; if (lpDrvItemList == NULL) { lpDrvItemList = lpNewDrv; lpNewDrv->lpPrevItem = NULL; } else { LPWINE_DRIVER lpDrv = lpDrvItemList; /* find end of list */ while (lpDrv->lpNextItem != NULL) lpDrv = lpDrv->lpNextItem; lpDrv->lpNextItem = lpNewDrv; lpNewDrv->lpPrevItem = lpDrv; } /* Now just open a new instance of a driver on this module */ lpNewDrv->dwDriverID = DRIVER_SendMessage(lpNewDrv, DRV_OPEN, lParam1, lParam2); if (lpNewDrv->dwDriverID == 0) { TRACE("DRV_OPEN failed on driver %p\n", lpNewDrv); DRIVER_RemoveFromList(lpNewDrv); return FALSE; } return TRUE; } /************************************************************************** * DRIVER_TryOpenDriver16 [internal] * * Tries to load a 16 bit driver whose DLL's (module) name is lpFileName. */ static LPWINE_DRIVER DRIVER_TryOpenDriver16(LPCSTR lpFileName, LPARAM lParam2) { static WORD DRIVER_hDrvr16Counter /* = 0 */; LPWINE_DRIVER lpDrv = NULL; HMODULE16 hModule; DRIVERPROC16 lpProc; LPCSTR lpSFN; LPSTR ptr; TRACE("('%s', %08lX);\n", lpFileName, lParam2); if (strlen(lpFileName) < 1) return lpDrv; if ((lpSFN = strrchr(lpFileName, '\\')) == NULL) lpSFN = lpFileName; else lpSFN++; if ((ptr = strchr(lpFileName, ' ')) != NULL) { *ptr++ = '\0'; while (*ptr == ' ') ptr++; if (*ptr == '\0') ptr = NULL; } if ((hModule = LoadLibrary16(lpFileName)) < 32) goto exit; if ((lpProc = (DRIVERPROC16)GetProcAddress16(hModule, "DRIVERPROC")) == NULL) goto exit; if ((lpDrv = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_DRIVER))) == NULL) goto exit; lpDrv->dwDriverID = 0; while (DRIVER_FindFromHDrvr16(++DRIVER_hDrvr16Counter)); lpDrv->hDriver16 = DRIVER_hDrvr16Counter; lpDrv->hModule16 = hModule; lpDrv->lpDrvProc = lpProc; if (!DRIVER_AddToList(lpDrv, (LPARAM)ptr, lParam2)) goto exit; return lpDrv; exit: TRACE("Unable to load 16 bit module (%s): %04x\n", lpFileName, hModule); if (hModule >= 32) FreeLibrary16(hModule); HeapFree(GetProcessHeap(), 0, lpDrv); return NULL; } /************************************************************************** * DrvOpen (MMSYSTEM.1100) */ HDRVR16 WINAPI DrvOpen16(LPCSTR lpDriverName, LPCSTR lpSectionName, LPARAM lParam2) { LPWINE_DRIVER lpDrv = NULL; char drvName[128]; TRACE("(%s, %s, %08lX);\n", debugstr_a(lpDriverName), debugstr_a(lpSectionName), lParam2); if (!lpDriverName || !*lpDriverName) return 0; if (lpSectionName == NULL) { strcpy(drvName, lpDriverName); if ((lpDrv = DRIVER_TryOpenDriver16(drvName, lParam2))) goto the_end; /* in case hDriver is NULL, search in Drivers section */ lpSectionName = "Drivers"; } if (GetPrivateProfileStringA(lpSectionName, lpDriverName, "", drvName, sizeof(drvName), "SYSTEM.INI") > 0) { lpDrv = DRIVER_TryOpenDriver16(drvName, lParam2); } if (!lpDrv) { TRACE("Failed to open driver %s from system.ini file, section %s\n", debugstr_a(lpDriverName), debugstr_a(lpSectionName)); return 0; } the_end: TRACE("=> %04x / %p\n", lpDrv->hDriver16, lpDrv); return lpDrv->hDriver16; } /************************************************************************** * DrvClose16 (MMSYSTEM.1101) */ LRESULT WINAPI DrvClose16(HDRVR16 hDrvr, LPARAM lParam1, LPARAM lParam2) { LPWINE_DRIVER lpDrv; TRACE("(%04x, %08lX, %08lX);\n", hDrvr, lParam1, lParam2); if ((lpDrv = DRIVER_FindFromHDrvr16(hDrvr)) != NULL) { DRIVER_SendMessage(lpDrv, DRV_CLOSE, lParam1, lParam2); if (DRIVER_RemoveFromList(lpDrv)) { HeapFree(GetProcessHeap(), 0, lpDrv); return TRUE; } } WARN("Failed to close driver\n"); return FALSE; } /************************************************************************** * DrvGetModuleHandle (MMSYSTEM.1103) */ HMODULE16 WINAPI DrvGetModuleHandle16(HDRVR16 hDrvr) { LPWINE_DRIVER lpDrv; HMODULE16 hModule = 0; TRACE("(%04x);\n", hDrvr); if ((lpDrv = DRIVER_FindFromHDrvr16(hDrvr)) != NULL) { hModule = lpDrv->hModule16; } TRACE("=> %04x\n", hModule); return hModule; } /************************************************************************** * DrvDefDriverProc (MMSYSTEM.1104) */ LRESULT WINAPI DrvDefDriverProc16(DWORD dwDevID, HDRVR16 hDriv, UINT16 wMsg, LPARAM lParam1, LPARAM lParam2) { TRACE("devID=0x%08x hDrv=0x%04x wMsg=%04x lP1=0x%08lx lP2=0x%08lx\n", dwDevID, hDriv, wMsg, lParam1, lParam2); switch(wMsg) { case DRV_LOAD: case DRV_FREE: case DRV_ENABLE: case DRV_DISABLE: return (LRESULT)1L; case DRV_OPEN: case DRV_CLOSE: case DRV_QUERYCONFIGURE: return (LRESULT)0L; case DRV_CONFIGURE: MessageBoxA(0, "Driver isn't configurable !", "Wine Driver", MB_OK); return (LRESULT)0L; case DRV_INSTALL: case DRV_REMOVE: return DRV_SUCCESS; default: return (LRESULT)0L; } } /************************************************************************** * DriverProc (MMSYSTEM.6) */ LRESULT WINAPI DriverProc16(DWORD dwDevID, HDRVR16 hDrv, WORD wMsg, DWORD dwParam1, DWORD dwParam2) { return DrvDefDriverProc16(dwDevID, hDrv, wMsg, dwParam1, dwParam2); }