441 lines
12 KiB
C
441 lines
12 KiB
C
/*
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* WINE Drivers functions
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*
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* Copyright 1994 Martin Ayotte
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* Copyright 1998 Marcus Meissner
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* Copyright 1999,2000 Eric Pouech
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* TODO:
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* - LoadModule count and clean up is not handled correctly (it's not a
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* problem as long as FreeLibrary is not working correctly)
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*/
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#include <stdarg.h>
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#include <string.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wine/winbase16.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "wownt32.h"
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#include "mmddk.h"
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#include "wine/mmsystem16.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(driver);
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typedef struct tagWINE_DRIVER
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{
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char szAliasName[128];
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/* as usual LPWINE_DRIVER == hDriver32 */
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HDRVR16 hDriver16;
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HMODULE16 hModule16;
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DRIVERPROC16 lpDrvProc;
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DWORD dwDriverID;
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struct tagWINE_DRIVER* lpPrevItem;
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struct tagWINE_DRIVER* lpNextItem;
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} WINE_DRIVER, *LPWINE_DRIVER;
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static LPWINE_DRIVER lpDrvItemList = NULL;
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/**************************************************************************
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* LoadStartupDrivers [internal]
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*/
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#if 0
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static void DRIVER_LoadStartupDrivers(void)
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{
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char str[256];
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if (GetPrivateProfileStringA("drivers", NULL, "", str, sizeof(str), "SYSTEM.INI") < 2) {
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ERR("Can't find drivers section in system.ini\n");
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} else {
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HDRVR16 hDrv;
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LPSTR ptr;
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for (ptr = str; *ptr; ptr += strlen(ptr) + 1) {
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TRACE("str='%s'\n", ptr);
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hDrv = OpenDriver16(ptr, "drivers", 0L);
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TRACE("hDrv=%04x\n", hDrv);
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}
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TRACE("end of list !\n");
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}
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}
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#endif
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/**************************************************************************
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* DRIVER_GetNumberOfModuleRefs [internal]
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*
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* Returns the number of open drivers which share the same module.
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*/
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static WORD DRIVER_GetNumberOfModuleRefs(LPWINE_DRIVER lpNewDrv)
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{
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LPWINE_DRIVER lpDrv;
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WORD count = 0;
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for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem) {
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if (lpDrv->hModule16 == lpNewDrv->hModule16) {
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count++;
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}
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}
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return count;
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}
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/**************************************************************************
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* DRIVER_FindFromHDrvr16 [internal]
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*
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* From a hDrvr being 16 bits, returns the WINE internal structure.
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*/
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static LPWINE_DRIVER DRIVER_FindFromHDrvr16(HDRVR16 hDrvr)
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{
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LPWINE_DRIVER lpDrv;
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for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem) {
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if (lpDrv->hDriver16 == hDrvr) {
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break;
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}
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}
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return lpDrv;
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}
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/**************************************************************************
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* DRIVER_SendMessage [internal]
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*/
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static inline LRESULT DRIVER_SendMessage(LPWINE_DRIVER lpDrv, UINT16 msg,
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LPARAM lParam1, LPARAM lParam2)
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{
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WORD args[8];
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DWORD ret;
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TRACE("Before CallDriverProc proc=%p driverID=%08x wMsg=%04x p1=%08lx p2=%08lx\n",
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lpDrv->lpDrvProc, lpDrv->dwDriverID, msg, lParam1, lParam2);
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args[7] = HIWORD(lpDrv->dwDriverID);
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args[6] = LOWORD(lpDrv->dwDriverID);
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args[5] = lpDrv->hDriver16;
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args[4] = msg;
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args[3] = HIWORD(lParam1);
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args[2] = LOWORD(lParam1);
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args[1] = HIWORD(lParam2);
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args[0] = LOWORD(lParam2);
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WOWCallback16Ex( (DWORD)lpDrv->lpDrvProc, WCB16_PASCAL, sizeof(args), args, &ret );
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return ret;
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}
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/**************************************************************************
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* SendDriverMessage (USER.251)
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*/
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LRESULT WINAPI SendDriverMessage16(HDRVR16 hDriver, UINT16 msg, LPARAM lParam1,
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LPARAM lParam2)
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{
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LPWINE_DRIVER lpDrv;
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LRESULT retval = 0;
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TRACE("(%04x, %04X, %08lX, %08lX)\n", hDriver, msg, lParam1, lParam2);
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if ((lpDrv = DRIVER_FindFromHDrvr16(hDriver)) != NULL) {
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retval = DRIVER_SendMessage(lpDrv, msg, lParam1, lParam2);
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} else {
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WARN("Bad driver handle %u\n", hDriver);
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}
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TRACE("retval = %ld\n", retval);
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return retval;
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}
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/**************************************************************************
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* DRIVER_RemoveFromList [internal]
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*
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* Generates all the logic to handle driver closure / deletion
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* Removes a driver struct to the list of open drivers.
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*/
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static BOOL DRIVER_RemoveFromList(LPWINE_DRIVER lpDrv)
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{
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lpDrv->dwDriverID = 0;
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if (DRIVER_GetNumberOfModuleRefs(lpDrv) == 1) {
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DRIVER_SendMessage(lpDrv, DRV_DISABLE, 0L, 0L);
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DRIVER_SendMessage(lpDrv, DRV_FREE, 0L, 0L);
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}
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if (lpDrv->lpPrevItem)
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lpDrv->lpPrevItem->lpNextItem = lpDrv->lpNextItem;
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else
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lpDrvItemList = lpDrv->lpNextItem;
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if (lpDrv->lpNextItem)
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lpDrv->lpNextItem->lpPrevItem = lpDrv->lpPrevItem;
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return TRUE;
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}
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/**************************************************************************
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* DRIVER_AddToList [internal]
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*
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* Adds a driver struct to the list of open drivers.
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* Generates all the logic to handle driver creation / open.
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*/
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static BOOL DRIVER_AddToList(LPWINE_DRIVER lpNewDrv, LPARAM lParam1, LPARAM lParam2)
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{
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/* First driver to be loaded for this module, need to load correctly the module */
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if (DRIVER_GetNumberOfModuleRefs(lpNewDrv) == 0) {
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if (DRIVER_SendMessage(lpNewDrv, DRV_LOAD, 0L, 0L) != DRV_SUCCESS) {
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TRACE("DRV_LOAD failed on driver %p\n", lpNewDrv);
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return FALSE;
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}
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/* returned value is not checked */
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DRIVER_SendMessage(lpNewDrv, DRV_ENABLE, 0L, 0L);
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}
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lpNewDrv->lpNextItem = NULL;
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if (lpDrvItemList == NULL) {
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lpDrvItemList = lpNewDrv;
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lpNewDrv->lpPrevItem = NULL;
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} else {
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LPWINE_DRIVER lpDrv = lpDrvItemList; /* find end of list */
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while (lpDrv->lpNextItem != NULL)
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lpDrv = lpDrv->lpNextItem;
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lpDrv->lpNextItem = lpNewDrv;
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lpNewDrv->lpPrevItem = lpDrv;
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}
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/* Now just open a new instance of a driver on this module */
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lpNewDrv->dwDriverID = DRIVER_SendMessage(lpNewDrv, DRV_OPEN, lParam1, lParam2);
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if (lpNewDrv->dwDriverID == 0) {
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TRACE("DRV_OPEN failed on driver %p\n", lpNewDrv);
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DRIVER_RemoveFromList(lpNewDrv);
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return FALSE;
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}
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return TRUE;
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}
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/**************************************************************************
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* DRIVER_TryOpenDriver16 [internal]
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*
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* Tries to load a 16 bit driver whose DLL's (module) name is lpFileName.
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*/
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static LPWINE_DRIVER DRIVER_TryOpenDriver16(LPCSTR lpFileName, LPARAM lParam2)
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{
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static WORD DRIVER_hDrvr16Counter /* = 0 */;
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LPWINE_DRIVER lpDrv = NULL;
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HMODULE16 hModule;
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DRIVERPROC16 lpProc;
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LPCSTR lpSFN;
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LPSTR ptr;
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TRACE("('%s', %08lX);\n", lpFileName, lParam2);
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if (strlen(lpFileName) < 1) return lpDrv;
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if ((lpSFN = strrchr(lpFileName, '\\')) == NULL)
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lpSFN = lpFileName;
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else
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lpSFN++;
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if ((ptr = strchr(lpFileName, ' ')) != NULL) {
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*ptr++ = '\0';
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while (*ptr == ' ') ptr++;
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if (*ptr == '\0') ptr = NULL;
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}
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if ((hModule = LoadLibrary16(lpFileName)) < 32) goto exit;
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if ((lpProc = (DRIVERPROC16)GetProcAddress16(hModule, "DRIVERPROC")) == NULL)
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goto exit;
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if ((lpDrv = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_DRIVER))) == NULL)
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goto exit;
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lpDrv->dwDriverID = 0;
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while (DRIVER_FindFromHDrvr16(++DRIVER_hDrvr16Counter));
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lpDrv->hDriver16 = DRIVER_hDrvr16Counter;
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lstrcpynA(lpDrv->szAliasName, lpSFN, sizeof(lpDrv->szAliasName));
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lpDrv->hModule16 = hModule;
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lpDrv->lpDrvProc = lpProc;
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if (!DRIVER_AddToList(lpDrv, (LPARAM)ptr, lParam2)) goto exit;
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return lpDrv;
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exit:
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TRACE("Unable to load 16 bit module (%s): %04x\n", lpFileName, hModule);
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if (hModule >= 32) FreeLibrary16(hModule);
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HeapFree(GetProcessHeap(), 0, lpDrv);
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return NULL;
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}
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/**************************************************************************
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* OpenDriver (USER.252)
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*/
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HDRVR16 WINAPI OpenDriver16(LPCSTR lpDriverName, LPCSTR lpSectionName, LPARAM lParam2)
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{
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LPWINE_DRIVER lpDrv = NULL;
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char drvName[128];
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TRACE("(%s, %s, %08lX);\n", debugstr_a(lpDriverName), debugstr_a(lpSectionName), lParam2);
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if (!lpDriverName || !*lpDriverName) return 0;
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if (lpSectionName == NULL) {
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strcpy(drvName, lpDriverName);
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if ((lpDrv = DRIVER_TryOpenDriver16(drvName, lParam2)))
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goto the_end;
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/* in case hDriver is NULL, search in Drivers section */
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lpSectionName = "Drivers";
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}
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if (GetPrivateProfileStringA(lpSectionName, lpDriverName, "",
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drvName, sizeof(drvName), "SYSTEM.INI") > 0) {
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lpDrv = DRIVER_TryOpenDriver16(drvName, lParam2);
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}
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if (!lpDrv) {
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TRACE("Failed to open driver %s from system.ini file, section %s\n", debugstr_a(lpDriverName), debugstr_a(lpSectionName));
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return 0;
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}
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the_end:
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TRACE("=> %04x / %p\n", lpDrv->hDriver16, lpDrv);
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return lpDrv->hDriver16;
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}
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/**************************************************************************
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* CloseDriver (USER.253)
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*/
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LRESULT WINAPI CloseDriver16(HDRVR16 hDrvr, LPARAM lParam1, LPARAM lParam2)
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{
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LPWINE_DRIVER lpDrv;
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TRACE("(%04x, %08lX, %08lX);\n", hDrvr, lParam1, lParam2);
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if ((lpDrv = DRIVER_FindFromHDrvr16(hDrvr)) != NULL) {
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DRIVER_SendMessage(lpDrv, DRV_CLOSE, lParam1, lParam2);
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if (DRIVER_RemoveFromList(lpDrv)) {
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HeapFree(GetProcessHeap(), 0, lpDrv);
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return TRUE;
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}
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}
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WARN("Failed to close driver\n");
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return FALSE;
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}
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/**************************************************************************
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* GetDriverModuleHandle (USER.254)
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*/
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HMODULE16 WINAPI GetDriverModuleHandle16(HDRVR16 hDrvr)
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{
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LPWINE_DRIVER lpDrv;
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HMODULE16 hModule = 0;
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TRACE("(%04x);\n", hDrvr);
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if ((lpDrv = DRIVER_FindFromHDrvr16(hDrvr)) != NULL) {
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hModule = lpDrv->hModule16;
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}
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TRACE("=> %04x\n", hModule);
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return hModule;
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}
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/**************************************************************************
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* DefDriverProc (USER.255)
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*/
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LRESULT WINAPI DefDriverProc16(DWORD dwDevID, HDRVR16 hDriv, UINT16 wMsg,
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LPARAM lParam1, LPARAM lParam2)
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{
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TRACE("devID=0x%08x hDrv=0x%04x wMsg=%04x lP1=0x%08lx lP2=0x%08lx\n",
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dwDevID, hDriv, wMsg, lParam1, lParam2);
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switch(wMsg) {
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case DRV_LOAD:
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case DRV_FREE:
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case DRV_ENABLE:
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case DRV_DISABLE:
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return (LRESULT)1L;
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case DRV_OPEN:
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case DRV_CLOSE:
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case DRV_QUERYCONFIGURE:
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return (LRESULT)0L;
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case DRV_CONFIGURE:
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MessageBoxA(0, "Driver isn't configurable !", "Wine Driver", MB_OK);
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return (LRESULT)0L;
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case DRV_INSTALL:
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case DRV_REMOVE:
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return DRV_SUCCESS;
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default:
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return (LRESULT)0L;
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}
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}
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/**************************************************************************
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* GetDriverInfo (USER.256)
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*/
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BOOL16 WINAPI GetDriverInfo16(HDRVR16 hDrvr, LPDRIVERINFOSTRUCT16 lpDrvInfo)
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{
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LPWINE_DRIVER lpDrv;
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BOOL16 ret = FALSE;
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TRACE("(%04x, %p);\n", hDrvr, lpDrvInfo);
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if (lpDrvInfo == NULL || lpDrvInfo->length != sizeof(DRIVERINFOSTRUCT16))
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return FALSE;
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if ((lpDrv = DRIVER_FindFromHDrvr16(hDrvr)) != NULL) {
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lpDrvInfo->hDriver = lpDrv->hDriver16;
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lpDrvInfo->hModule = lpDrv->hModule16;
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lstrcpynA(lpDrvInfo->szAliasName, lpDrv->szAliasName, sizeof(lpDrvInfo->szAliasName));
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ret = TRUE;
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}
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return ret;
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}
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/**************************************************************************
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* GetNextDriver (USER.257)
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*/
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HDRVR16 WINAPI GetNextDriver16(HDRVR16 hDrvr, DWORD dwFlags)
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{
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HDRVR16 hRetDrv = 0;
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LPWINE_DRIVER lpDrv;
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TRACE("(%04x, %08X);\n", hDrvr, dwFlags);
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if (hDrvr == 0) {
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if (lpDrvItemList == NULL) {
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FIXME("drivers list empty !\n");
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/* FIXME: code was using DRIVER_LoadStartupDrivers(); before ?
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* I (EPP) don't quite understand this
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*/
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if (lpDrvItemList == NULL)
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return 0;
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}
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lpDrv = lpDrvItemList;
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if (dwFlags & GND_REVERSE) {
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while (lpDrv->lpNextItem)
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lpDrv = lpDrv->lpNextItem;
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}
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} else {
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if ((lpDrv = DRIVER_FindFromHDrvr16(hDrvr)) != NULL) {
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if (dwFlags & GND_REVERSE) {
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lpDrv = (lpDrv->lpPrevItem) ? lpDrv->lpPrevItem : NULL;
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} else {
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lpDrv = (lpDrv->lpNextItem) ? lpDrv->lpNextItem : NULL;
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}
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}
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}
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hRetDrv = (lpDrv) ? lpDrv->hDriver16 : (HDRVR16)0;
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TRACE("return %04x !\n", hRetDrv);
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return hRetDrv;
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}
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