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Sweden-Number/dlls/winmm/driver.c

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/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* WINE Drivers functions
*
* Copyright 1994 Martin Ayotte
* Copyright 1998 Marcus Meissner
* Copyright 1999 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include "heap.h"
#include "windef.h"
#include "mmddk.h"
#include "winemm.h"
#include "wine/winbase16.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(driver);
static LPWINE_DRIVER lpDrvItemList = NULL;
/* TODO list :
* - LoadModule count and clean up is not handled correctly (it's not a
* problem as long as FreeLibrary is not working correctly)
*/
/**************************************************************************
* 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;
if (lpNewDrv->dwFlags & WINE_GDF_16BIT) ERR("OOOch\n");
for (lpDrv = lpDrvItemList; lpDrv; lpDrv = lpDrv->lpNextItem) {
if (!(lpDrv->dwFlags & WINE_GDF_16BIT) &&
lpDrv->d.d32.hModule == lpNewDrv->d.d32.hModule) {
count++;
}
}
return count;
}
/**************************************************************************
* DRIVER_FindFromHDrvr [internal]
*
* From a hDrvr being 32 bits, returns the WINE internal structure.
*/
LPWINE_DRIVER DRIVER_FindFromHDrvr(HDRVR hDrvr)
{
LPWINE_DRIVER d = (LPWINE_DRIVER)hDrvr;
if (hDrvr && HeapValidate(GetProcessHeap(), 0, d) && d->dwMagic == WINE_DI_MAGIC) {
return d;
}
return NULL;
}
/**************************************************************************
* DRIVER_MapMsg32To16 [internal]
*
* Map a 32 bit driver message to a 16 bit driver message.
* 1 : ok, some memory allocated, need to call DRIVER_UnMapMsg32To16
* 0 : ok, no memory allocated
* -1 : ko, unknown message
* -2 : ko, memory problem
*/
static int DRIVER_MapMsg32To16(WORD wMsg, DWORD* lParam1, DWORD* lParam2)
{
int ret = -1;
switch (wMsg) {
case DRV_LOAD:
case DRV_ENABLE:
case DRV_DISABLE:
case DRV_FREE:
case DRV_QUERYCONFIGURE:
case DRV_REMOVE:
case DRV_EXITSESSION:
case DRV_EXITAPPLICATION:
case DRV_POWER:
case DRV_CLOSE: /* should be 0/0 */
case DRV_OPEN: /* pass through */
/* lParam1 and lParam2 are not used */
ret = 0;
break;
break;
case DRV_CONFIGURE:
case DRV_INSTALL:
/* lParam1 is a handle to a window (conf) or to a driver (inst) or not used,
* lParam2 is a pointer to DRVCONFIGINFO
*/
if (*lParam2) {
LPDRVCONFIGINFO16 dci16 = HeapAlloc( GetProcessHeap(), 0, sizeof(*dci16) );
LPDRVCONFIGINFO dci32 = (LPDRVCONFIGINFO)(*lParam2);
if (dci16) {
LPSTR str1;
dci16->dwDCISize = sizeof(DRVCONFIGINFO16);
if ((str1 = HEAP_strdupWtoA(GetProcessHeap(), 0, dci32->lpszDCISectionName)) != NULL)
{
dci16->lpszDCISectionName = MapLS( str1 );
} else {
return -2;
}
if ((str1 = HEAP_strdupWtoA(GetProcessHeap(), 0, dci32->lpszDCIAliasName)) != NULL)
{
dci16->lpszDCIAliasName = MapLS( str1 );
} else {
return -2;
}
} else {
return -2;
}
*lParam2 = MapLS( dci16 );
ret = 1;
} else {
ret = 0;
}
break;
default:
if (!((wMsg >= 0x800 && wMsg < 0x900) || (wMsg >= 0x4000 && wMsg < 0x4100))) {
FIXME("Unknown message 0x%04x\n", wMsg);
}
ret = 0;
}
return ret;
}
/**************************************************************************
* DRIVER_UnMapMsg32To16 [internal]
*
* UnMap a 32 bit driver message to a 16 bit driver message.
* 0 : ok
* -1 : ko
* -2 : ko, memory problem
*/
static int DRIVER_UnMapMsg32To16(WORD wMsg, DWORD lParam1, DWORD lParam2)
{
int ret = -1;
switch (wMsg) {
case DRV_LOAD:
case DRV_ENABLE:
case DRV_DISABLE:
case DRV_FREE:
case DRV_QUERYCONFIGURE:
case DRV_REMOVE:
case DRV_EXITSESSION:
case DRV_EXITAPPLICATION:
case DRV_POWER:
case DRV_OPEN:
case DRV_CLOSE:
/* lParam1 and lParam2 are not used */
break;
case DRV_CONFIGURE:
case DRV_INSTALL:
/* lParam1 is a handle to a window (or not used), lParam2 is a pointer to DRVCONFIGINFO, lParam2 */
if (lParam2) {
LPDRVCONFIGINFO16 dci16 = MapSL(lParam2);
HeapFree( GetProcessHeap(), 0, MapSL(dci16->lpszDCISectionName) );
HeapFree( GetProcessHeap(), 0, MapSL(dci16->lpszDCIAliasName) );
UnMapLS( lParam2 );
UnMapLS( dci16->lpszDCISectionName );
UnMapLS( dci16->lpszDCIAliasName );
HeapFree( GetProcessHeap(), 0, dci16 );
}
ret = 0;
break;
default:
if (!((wMsg >= 0x800 && wMsg < 0x900) || (wMsg >= 0x4000 && wMsg < 0x4100))) {
FIXME("Unknown message 0x%04x\n", wMsg);
}
ret = 0;
}
return ret;
}
/**************************************************************************
* DRIVER_SendMessage [internal]
*/
static LRESULT inline DRIVER_SendMessage(LPWINE_DRIVER lpDrv, UINT msg,
LPARAM lParam1, LPARAM lParam2)
{
if (lpDrv->dwFlags & WINE_GDF_16BIT) {
LRESULT ret;
int map = 0;
TRACE("Before sdm16 call hDrv=%04x wMsg=%04x p1=%08lx p2=%08lx\n",
lpDrv->d.d16.hDriver16, msg, lParam1, lParam2);
if ((map = DRIVER_MapMsg32To16(msg, &lParam1, &lParam2)) >= 0) {
ret = SendDriverMessage16(lpDrv->d.d16.hDriver16, msg, lParam1, lParam2);
if (map == 1)
DRIVER_UnMapMsg32To16(msg, lParam1, lParam2);
} else {
ret = 0;
}
return ret;
}
TRACE("Before func32 call proc=%p driverID=%08lx hDrv=%08x wMsg=%04x p1=%08lx p2=%08lx\n",
lpDrv->d.d32.lpDrvProc, lpDrv->d.d32.dwDriverID, (HDRVR)lpDrv, msg, lParam1, lParam2);
return lpDrv->d.d32.lpDrvProc(lpDrv->d.d32.dwDriverID, (HDRVR)lpDrv, msg, lParam1, lParam2);
}
/**************************************************************************
* SendDriverMessage [WINMM.@]
* DrvSendMessage [WINMM.@]
*/
LRESULT WINAPI SendDriverMessage(HDRVR hDriver, UINT msg, LPARAM lParam1,
LPARAM lParam2)
{
LPWINE_DRIVER lpDrv;
LRESULT retval = 0;
TRACE("(%04x, %04X, %08lX, %08lX)\n", hDriver, msg, lParam1, lParam2);
if ((lpDrv = DRIVER_FindFromHDrvr(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)
{
if (!(lpDrv->dwFlags & WINE_GDF_16BIT)) {
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)
{
lpNewDrv->dwMagic = WINE_DI_MAGIC;
/* First driver to be loaded for this module, need to load correctly the module */
if (!(lpNewDrv->dwFlags & WINE_GDF_16BIT)) {
if (DRIVER_GetNumberOfModuleRefs(lpNewDrv) == 0) {
if (DRIVER_SendMessage(lpNewDrv, DRV_LOAD, 0L, 0L) != DRV_SUCCESS) {
TRACE("DRV_LOAD failed on driver 0x%08lx\n", (DWORD)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;
}
if (!(lpNewDrv->dwFlags & WINE_GDF_16BIT)) {
/* Now just open a new instance of a driver on this module */
lpNewDrv->d.d32.dwDriverID = DRIVER_SendMessage(lpNewDrv, DRV_OPEN, lParam1, lParam2);
if (lpNewDrv->d.d32.dwDriverID == 0) {
TRACE("DRV_OPEN failed on driver 0x%08lx\n", (DWORD)lpNewDrv);
DRIVER_RemoveFromList(lpNewDrv);
return FALSE;
}
}
return TRUE;
}
/**************************************************************************
* DRIVER_GetLibName [internal]
*
*/
BOOL DRIVER_GetLibName(LPCSTR keyName, LPCSTR sectName, LPSTR buf, int sz)
{
/* should also do some registry diving */
return GetPrivateProfileStringA(sectName, keyName, "", buf, sz, "SYSTEM.INI");
}
/**************************************************************************
* DRIVER_TryOpenDriver32 [internal]
*
* Tries to load a 32 bit driver whose DLL's (module) name is fn
*/
LPWINE_DRIVER DRIVER_TryOpenDriver32(LPCSTR fn, LPARAM lParam2)
{
LPWINE_DRIVER lpDrv = NULL;
HMODULE hModule = 0;
LPSTR ptr;
LPCSTR cause = 0;
TRACE("(%s, %08lX);\n", debugstr_a(fn), lParam2);
if ((ptr = strchr(fn, ' ')) != NULL) {
*ptr++ = '\0';
while (*ptr == ' ') ptr++;
if (*ptr == '\0') ptr = NULL;
}
lpDrv = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_DRIVER));
if (lpDrv == NULL) {cause = "OOM"; goto exit;}
if ((hModule = LoadLibraryA(fn)) == 0) {cause = "Not a 32 bit lib"; goto exit;}
lpDrv->d.d32.lpDrvProc = (DRIVERPROC)GetProcAddress(hModule, "DriverProc");
if (lpDrv->d.d32.lpDrvProc == NULL) {cause = "no DriverProc"; goto exit;}
lpDrv->dwFlags = 0;
lpDrv->d.d32.hModule = hModule;
lpDrv->d.d32.dwDriverID = 0;
if (!DRIVER_AddToList(lpDrv, (LPARAM)ptr, lParam2)) {cause = "load failed"; goto exit;}
TRACE("=> %p\n", lpDrv);
return lpDrv;
exit:
FreeLibrary(hModule);
HeapFree(GetProcessHeap(), 0, lpDrv);
TRACE("Unable to load 32 bit module %s: %s\n", debugstr_a(fn), cause);
return NULL;
}
/**************************************************************************
* DRIVER_TryOpenDriver16 [internal]
*
* Tries to load a 16 bit driver whose DLL's (module) name is lpFileName.
*/
static LPWINE_DRIVER DRIVER_TryOpenDriver16(LPCSTR fn, LPCSTR sn, LPARAM lParam2)
{
LPWINE_DRIVER lpDrv = NULL;
LPCSTR cause = 0;
TRACE("(%s, %08lX);\n", debugstr_a(sn), lParam2);
lpDrv = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_DRIVER));
if (lpDrv == NULL) {cause = "OOM"; goto exit;}
/* FIXME: shall we do some black magic here on sn ?
* drivers32 => drivers
* mci32 => mci
* ...
*/
lpDrv->d.d16.hDriver16 = OpenDriver16(fn, sn, lParam2);
if (lpDrv->d.d16.hDriver16 == 0) {cause = "Not a 16 bit driver"; goto exit;}
lpDrv->dwFlags = WINE_GDF_16BIT;
if (!DRIVER_AddToList(lpDrv, 0, lParam2)) {cause = "load failed"; goto exit;}
TRACE("=> %p\n", lpDrv);
return lpDrv;
exit:
HeapFree(GetProcessHeap(), 0, lpDrv);
TRACE("Unable to load 32 bit module %s: %s\n", debugstr_a(fn), cause);
return NULL;
}
/**************************************************************************
* OpenDriverA [WINMM.@]
* DrvOpenA [WINMM.@]
* (0,1,DRV_LOAD ,0 ,0)
* (0,1,DRV_ENABLE,0 ,0)
* (0,1,DRV_OPEN ,buf[256],0)
*/
HDRVR WINAPI OpenDriverA(LPCSTR lpDriverName, LPCSTR lpSectionName, LPARAM lParam2)
{
LPWINE_DRIVER lpDrv = NULL;
char libName[128];
LPCSTR lsn = lpSectionName;
TRACE("(%s, %s, 0x%08lx);\n", debugstr_a(lpDriverName), debugstr_a(lpSectionName), lParam2);
if (lsn == NULL) {
lstrcpynA(libName, lpDriverName, sizeof(libName));
if ((lpDrv = DRIVER_TryOpenDriver32(libName, lParam2)))
goto the_end;
lsn = "Drivers32";
}
if (DRIVER_GetLibName(lpDriverName, lsn, libName, sizeof(libName)) &&
(lpDrv = DRIVER_TryOpenDriver32(libName, lParam2)))
goto the_end;
if (!(lpDrv = DRIVER_TryOpenDriver16(lpDriverName, lpSectionName, lParam2)))
TRACE("Failed to open driver %s from system.ini file, section %s\n", debugstr_a(lpDriverName), debugstr_a(lpSectionName));
the_end:
if (lpDrv) TRACE("=> %08lx\n", (DWORD)lpDrv);
return (DWORD)lpDrv;
}
/**************************************************************************
* OpenDriver [WINMM.@]
* DrvOpen [WINMM.@]
*/
HDRVR WINAPI OpenDriverW(LPCWSTR lpDriverName, LPCWSTR lpSectionName, LPARAM lParam)
{
LPSTR dn = HEAP_strdupWtoA(GetProcessHeap(), 0, lpDriverName);
LPSTR sn = HEAP_strdupWtoA(GetProcessHeap(), 0, lpSectionName);
HDRVR ret = OpenDriverA(dn, sn, lParam);
if (dn) HeapFree(GetProcessHeap(), 0, dn);
if (sn) HeapFree(GetProcessHeap(), 0, sn);
return ret;
}
/**************************************************************************
* CloseDriver [WINMM.@]
* DrvClose [WINMM.@]
*/
LRESULT WINAPI CloseDriver(HDRVR hDrvr, LPARAM lParam1, LPARAM lParam2)
{
LPWINE_DRIVER lpDrv;
TRACE("(%04x, %08lX, %08lX);\n", hDrvr, lParam1, lParam2);
if ((lpDrv = DRIVER_FindFromHDrvr(hDrvr)) != NULL) {
if (lpDrv->dwFlags & WINE_GDF_16BIT)
CloseDriver16(lpDrv->d.d16.hDriver16, lParam1, lParam2);
else
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;
}
/**************************************************************************
* GetDriverFlags [WINMM.@]
* [in] hDrvr handle to the driver
*
* Returns:
* 0x00000000 if hDrvr is an invalid handle
* 0x80000000 if hDrvr is a valid 32 bit driver
* 0x90000000 if hDrvr is a valid 16 bit driver
*
* native WINMM doesn't return those flags
* 0x80000000 for a valid 32 bit driver and that's it
* (I may have mixed up the two flags :-(
*/
DWORD WINAPI GetDriverFlags(HDRVR hDrvr)
{
LPWINE_DRIVER lpDrv;
DWORD ret = 0;
TRACE("(%04x)\n", hDrvr);
if ((lpDrv = DRIVER_FindFromHDrvr(hDrvr)) != NULL) {
ret = WINE_GDF_EXIST | lpDrv->dwFlags;
}
return ret;
}
/**************************************************************************
* GetDriverModuleHandle [WINMM.@]
* DrvGetModuleHandle [WINMM.@]
*/
HMODULE WINAPI GetDriverModuleHandle(HDRVR hDrvr)
{
LPWINE_DRIVER lpDrv;
HMODULE hModule = 0;
TRACE("(%04x);\n", hDrvr);
if ((lpDrv = DRIVER_FindFromHDrvr(hDrvr)) != NULL) {
if (!(lpDrv->dwFlags & WINE_GDF_16BIT))
hModule = lpDrv->d.d32.hModule;
}
TRACE("=> %04x\n", hModule);
return hModule;
}
/**************************************************************************
* DrvOpen [MMSYSTEM.1100]
*/
HDRVR16 WINAPI DrvOpen16(LPSTR lpDriverName, LPSTR lpSectionName, LPARAM lParam)
{
return OpenDriver16(lpDriverName, lpSectionName, lParam);
}
/**************************************************************************
* DrvClose [MMSYSTEM.1101]
*/
LRESULT WINAPI DrvClose16(HDRVR16 hDrv, LPARAM lParam1, LPARAM lParam2)
{
return CloseDriver16(hDrv, lParam1, lParam2);
}
/**************************************************************************
* DrvSendMessage [MMSYSTEM.1102]
*/
LRESULT WINAPI DrvSendMessage16(HDRVR16 hDrv, WORD msg, LPARAM lParam1,
LPARAM lParam2)
{
return SendDriverMessage16(hDrv, msg, lParam1, lParam2);
}
/**************************************************************************
* DrvGetModuleHandle [MMSYSTEM.1103]
*/
HANDLE16 WINAPI DrvGetModuleHandle16(HDRVR16 hDrv)
{
return GetDriverModuleHandle16(hDrv);
}
/**************************************************************************
* DrvDefDriverProc [MMSYSTEM.1104]
*/
LRESULT WINAPI DrvDefDriverProc16(DWORD dwDriverID, HDRVR16 hDrv, WORD wMsg,
DWORD dwParam1, DWORD dwParam2)
{
return DefDriverProc16(dwDriverID, hDrv, wMsg, dwParam1, dwParam2);
}
/**************************************************************************
* DefDriverProc [WINMM.@]
* DrvDefDriverProc [WINMM.@]
*/
LRESULT WINAPI DefDriverProc(DWORD dwDriverIdentifier, HDRVR hDrv,
UINT Msg, LPARAM lParam1, LPARAM lParam2)
{
switch (Msg) {
case DRV_LOAD:
case DRV_FREE:
case DRV_ENABLE:
case DRV_DISABLE:
return 1;
case DRV_INSTALL:
case DRV_REMOVE:
return DRV_SUCCESS;
default:
return 0;
}
}
/**************************************************************************
* DriverProc [MMSYSTEM.6]
*/
LRESULT WINAPI DriverProc16(DWORD dwDevID, HDRVR16 hDrv, WORD wMsg,
DWORD dwParam1, DWORD dwParam2)
{
TRACE("dwDevID=%08lx hDrv=%04x wMsg=%04x dwParam1=%08lx dwParam2=%08lx\n",
dwDevID, hDrv, wMsg, dwParam1, dwParam2);
return DrvDefDriverProc16(dwDevID, hDrv, wMsg, dwParam1, dwParam2);
}
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