1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
3 * DOS interrupt 2fh handler
5 * Cdrom - device driver emulation - Audio features.
6 * Copyright (c) 1998 Petr Tomasek <tomasek@etf.cuni.cz>
7 * Copyright (c) 1999,2002 Eric Pouech
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
28 #define NONAMELESSUNION
29 #define NONAMELESSSTRUCT
31 #define WIN32_NO_STATUS
32 #include "wine/winbase16.h"
33 #include "wine/debug.h"
40 WINE_DEFAULT_DEBUG_CHANNEL(int);
42 /* base KERNEL ordinal number for VxDs */
47 DOS_DEVICE_HEADER hdr;
49 WORD reserved; /* must be 0 */
50 BYTE drive; /* drive letter (0=A:, 1=B:, ...) */
51 BYTE units; /* number of supported units */
52 } CDROM_DEVICE_HEADER;
56 CDROM_DEVICE_HEADER hdr;
59 WORD cdrom_segment; /* Real mode segment for CDROM_HEAP */
60 WORD cdrom_selector; /* Protected mode selector for CDROM_HEAP */
63 static void do_int2f_16( CONTEXT *context );
64 static void MSCDEX_Handler( CONTEXT *context );
66 /**********************************************************************
69 * Handler for int 2fh (multiplex).
71 void WINAPI DOSVM_Int2fHandler( CONTEXT *context )
73 TRACE("Subfunction 0x%X\n", AX_reg(context));
75 switch(AH_reg(context))
78 SET_AL( context, 0xff ); /* share is installed */
81 case 0x11: /* Network Redirector / IFSFUNC */
82 switch (LOBYTE(context->Eax))
84 case 0x00: /* Install check */
87 case 0x80: /* Enhanced services - Install check */
91 INT_BARF( context, 0x2f );
97 switch (LOBYTE(context->Eax))
99 case 0x2e: /* get or set DOS error table address */
100 switch (DL_reg(context))
102 /* Four tables: even commands are 'get', odd are 'set' */
103 /* DOS 5.0+ ignores "set" commands */
110 /* Instead of having a message table in DOS-space, */
111 /* we can use a special case for MS-DOS to force */
112 /* the secondary interface. */
117 context->SegEs = 0x0001;
118 SET_DI( context, 0x0000 );
121 FIXME("No real-mode handler for errors yet! (bye!)\n");
124 INT_BARF(context, 0x2f);
128 INT_BARF(context, 0x2f);
132 case 0x15: /* mscdex */
133 MSCDEX_Handler(context);
137 do_int2f_16( context );
140 case 0x1a: /* ANSI.SYS / AVATAR.SYS Install Check */
141 /* Not supported yet, do nothing */
146 switch (LOBYTE(context->Eax))
148 case 0x00: /* XMS v2+ installation check */
149 WARN("XMS is not fully implemented\n");
150 SET_AL( context, 0x80 );
152 case 0x10: /* XMS v2+ get driver address */
154 context->SegEs = DOSVM_dpmi_segments->xms_seg;
155 SET_BX( context, 0 );
159 INT_BARF( context, 0x2f );
162 FIXME("check for XMS (not supported)\n");
163 SET_AL( context, 0x42 ); /* != 0x80 */
168 switch (LOBYTE(context->Eax))
179 /* Microsoft Profiler - not installed */
182 INT_BARF( context, 0x2f );
187 switch(LOBYTE(context->Eax))
189 case 0x10: /* smartdrv */
190 break; /* not installed */
191 case 0x11: /* dblspace */
192 break; /* not installed */
193 case 0x12: /* realtime compression interface */
194 break; /* not installed */
195 case 0x32: /* patch IO.SYS (???) */
196 break; /* we have no IO.SYS, so we can't patch it :-/ */
198 INT_BARF( context, 0x2f );
202 switch(LOBYTE(context->Eax))
209 FIXME("Task Switcher - not implemented\n");
212 INT_BARF( context, 0x2f );
215 case 0x56: /* INTERLNK */
216 switch(LOBYTE(context->Eax))
218 case 0x01: /* check if redirected drive */
219 SET_AL( context, 0 ); /* not redirected */
222 INT_BARF( context, 0x2f );
225 case 0x7a: /* NOVELL NetWare */
226 switch (LOBYTE(context->Eax))
228 case 0x0: /* Low-level Netware installation check AL=0 not installed.*/
229 SET_AL( context, 0 );
231 case 0x20: /* Get VLM Call Address */
232 /* return nothing -> NetWare not installed */
235 INT_BARF( context, 0x2f );
239 case 0xb7: /* append */
240 SET_AL( context, 0 ); /* not installed */
242 case 0xb8: /* network */
243 switch (LOBYTE(context->Eax))
245 case 0x00: /* Install check */
249 INT_BARF( context, 0x2f );
254 if (AL_reg(context) == 0x00 && BX_reg(context) == 0x3f3f) {
255 /* MVSOUND.SYS - Install check: not installed */
257 INT_BARF( context, 0x2f );
260 case 0xbd: /* some Novell network install check ??? */
261 SET_AX( context, 0xa5a5 ); /* pretend to have Novell IPX installed */
263 case 0xbf: /* REDIRIFS.EXE */
264 switch (LOBYTE(context->Eax))
266 case 0x00: /* Install check */
270 INT_BARF( context, 0x2f );
275 switch(LOBYTE(context->Eax))
277 case 0x01: /* Quarterdeck RPCI - QEMM/QRAM - PCL-838.EXE functions */
278 if(BX_reg(context) == 0x5145 && CX_reg(context) == 0x4D4D
279 && DX_reg(context) == 0x3432)
280 TRACE("Check for QEMM v5.0+ (not installed)\n");
283 INT_BARF( context, 0x2f );
287 case 0xd7: /* Banyan Vines */
288 switch (LOBYTE(context->Eax))
290 case 0x01: /* Install check - Get Int Number */
294 INT_BARF( context, 0x2f );
299 switch(LOBYTE(context->Eax))
301 case 0x01: /* Quarterdeck QDPMI.SYS - DESQview */
302 if(BX_reg(context) == 0x4450 && CX_reg(context) == 0x4d49
303 && DX_reg(context) == 0x8f4f)
304 TRACE("Check for QDPMI.SYS (not installed)\n");
307 INT_BARF( context, 0x2f );
311 case 0xfa: /* Watcom debugger check, returns 0x666 if installed */
314 INT_BARF( context, 0x2f );
320 /**********************************************************************
323 static void do_int2f_16( CONTEXT *context )
327 switch(LOBYTE(context->Eax))
329 case 0x00: /* Windows enhanced mode installation check */
330 SET_AX( context, LOWORD(GetVersion16()) );
333 case 0x0a: /* Get Windows version and type */
334 SET_AX( context, 0 );
335 SET_BX( context, (LOWORD(GetVersion16()) << 8) | (LOWORD(GetVersion16()) >> 8) );
336 SET_CX( context, 3 );
339 case 0x0b: /* Identify Windows-aware TSRs */
340 /* we don't have any pre-Windows TSRs */
343 case 0x11: /* Get Shell Parameters - (SHELL= in CONFIG.SYS) */
344 /* We can mock this up. But not today... */
345 FIXME("Get Shell Parameters\n");
348 case 0x80: /* Release time-slice */
349 /* Linux sched_yield() still keeps burning CPU cycles
350 * if the current process is the only one in highest priority list
351 * (as Linux will immediately return to this process to waste
352 * more CPU cycles), so sched_yield() is essentially useless for us
353 * (poor API, if you ask me: its return code should indicate
354 * whether other processes did run in between, in order for us
355 * to be able to decide whether to do an additional Sleep() or not...)
356 * Thus we better unconditionally use a well-balanced Sleep()
357 * instead to really make sure the process calling int 0x2f/0x1680
358 * *doesn't* use 100% CPU...
360 Sleep(55); /* just wait 55ms (one "timer tick") for now. */
361 SET_AL( context, 0 );
364 case 0x81: /* Begin critical section. */
368 case 0x82: /* End critical section. */
372 case 0x83: /* Return Current Virtual Machine ID */
373 /* Virtual Machines are usually created/destroyed when Windows runs
374 * DOS programs. Since we never do, we are always in the System VM.
375 * According to Ralf Brown's Interrupt List, never return 0. But it
376 * seems to work okay (returning 0), just to be sure we return 1.
378 SET_BX( context, 1 ); /* VM 1 is probably the System VM */
381 case 0x84: /* Get device API entry point */
383 HMODULE16 mod = GetModuleHandle16("kernel");
384 addr = (DWORD)GetProcAddress16( mod, (LPCSTR)(VXD_BASE + BX_reg(context)) );
385 if (!addr) /* not supported */
386 ERR("Accessing unknown VxD %04x - Expect a failure now.\n", BX_reg(context) );
387 context->SegEs = SELECTOROF(addr);
388 SET_DI( context, OFFSETOF(addr) );
392 case 0x86: /* DPMI detect mode */
393 SET_AX( context, 0 ); /* Running under DPMI */
396 case 0x87: /* DPMI installation check */
400 SET_AX( context, 0x0000 ); /* DPMI Installed */
401 SET_BX( context, 0x0001 ); /* 32bits available */
402 SET_CL( context, si.wProcessorLevel );
403 SET_DX( context, 0x005a ); /* DPMI major/minor 0.90 */
404 SET_SI( context, 0 ); /* # of para. of DOS extended private data */
405 context->SegEs = DOSVM_dpmi_segments->dpmi_seg;
406 SET_DI( context, 0 ); /* ES:DI is DPMI switch entry point */
409 case 0x8a: /* DPMI get vendor-specific API entry point. */
410 /* The 1.0 specs say this should work with all 0.9 hosts. */
414 INT_BARF( context, 0x2f );
418 /* FIXME: this macro may have to be changed on architectures where <size> reads/writes
419 * must be <size> aligned
420 * <size> could be WORD, DWORD...
421 * in this case, we would need two macros, one for read, the other one for write
422 * Note: PTR_AT can be used as an l-value
424 #define PTR_AT(_ptr, _ofs, _typ) (*((_typ*)(((char*)_ptr)+(_ofs))))
426 /* Use #if 1 if you want full int 2f debug... normal users can leave it at 0 */
428 /**********************************************************************
429 * MSCDEX_Dump [internal]
431 * Dumps mscdex requests to int debug channel.
433 static void MSCDEX_Dump(char* pfx, BYTE* req, int dorealmode)
441 ptr += sprintf(ptr, "%s\tCommand => ", pfx);
442 for (i = 0; i < req[0]; i++) {
443 ptr += sprintf(ptr, "%02x ", req[i]);
449 ptr += sprintf(ptr, "\n\t\t\t\tIO_struct => ");
450 ios = (dorealmode) ? PTR_REAL_TO_LIN( PTR_AT(req, 16, WORD), PTR_AT(req, 14, WORD)) :
451 MapSL(MAKESEGPTR(PTR_AT(req, 16, WORD), PTR_AT(req, 14, WORD)));
453 for (i = 0; i < PTR_AT(req, 18, WORD); i++) {
454 ptr += sprintf(ptr, "%02x ", ios[i]);
455 if ((i & 0x1F) == 0x1F) {
465 #define MSCDEX_Dump(pfx, req, drm)
468 #define CDFRAMES_PERSEC 75
469 #define CDFRAMES_PERMIN (CDFRAMES_PERSEC * 60)
470 #define FRAME_OF_ADDR(a) ((a)[1] * CDFRAMES_PERMIN + (a)[2] * CDFRAMES_PERSEC + (a)[3])
471 #define FRAME_OF_TOC(toc, idx) FRAME_OF_ADDR((toc).TrackData[idx - (toc).FirstTrack].Address)
472 #define CTRL_OF_TOC(toc, idx) (((toc).TrackData[idx - (toc).FirstTrack].Control << 4) | \
473 (toc).TrackData[idx - (toc).FirstTrack].Adr)
475 static void MSCDEX_StoreMSF(DWORD frame, BYTE* val)
477 val[3] = 0; /* zero */
478 val[2] = frame / CDFRAMES_PERMIN; /* minutes */
479 val[1] = (frame / CDFRAMES_PERSEC) % 60; /* seconds */
480 val[0] = frame % CDFRAMES_PERSEC; /* frames */
483 static int is_cdrom( int drive)
485 char root[] = "A:\\";
487 return (GetDriveTypeA(root) == DRIVE_CDROM);
490 /***********************************************************************
493 * Initialize CDROM heap.
496 static void CDROM_FillHeap( CDROM_HEAP *heap )
500 /* Count the number of contiguous CDROM drives
502 for (drive = count = 0; drive < 26; drive++) {
503 if (is_cdrom(drive)) {
504 while (is_cdrom(drive + count)) count++;
508 TRACE("Installation check: %d cdroms, starting at %d\n", count, drive);
509 heap->hdr.drive = (drive < 26) ? drive : 0;
510 heap->hdr.units = count;
511 heap->hdr.reserved = 0;
514 /**********************************************************************
517 * Get pointer for CDROM heap (CDROM_HEAP).
518 * Creates and initializes heap on first call.
520 static CDROM_HEAP *CDROM_GetHeap( void )
522 static CDROM_HEAP *heap_pointer = NULL;
529 /* allocate a new DOS data segment */
530 heap_pointer = DOSVM_AllocDataUMB( sizeof(CDROM_HEAP),
534 heap_pointer->cdrom_segment = heap_segment;
535 heap_pointer->cdrom_selector = heap_selector;
536 CDROM_FillHeap( heap_pointer );
542 static void MSCDEX_Request(BYTE *driver_request, BOOL dorealmode)
545 BYTE Error = 255; /* No Error */
546 char devName[] = "\\\\.\\@:";
549 CDROM_SUB_Q_DATA_FORMAT fmt;
550 SUB_Q_CHANNEL_DATA data;
552 DWORD present = TRUE;
555 * the following tests are wrong because lots of functions don't require the
556 * tray to be closed with a CD inside
558 TRACE("CDROM device driver -> command <%d>\n", driver_request[2]);
560 MSCDEX_Dump("Beg", driver_request, dorealmode);
562 /* set status to 0 */
563 PTR_AT(driver_request, 3, WORD) = 0;
564 devName[4] = 'A' + CDROM_GetHeap()->hdr.drive + driver_request[1];
565 h = CreateFileA(devName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
566 if (h == INVALID_HANDLE_VALUE) {
567 WARN("Couldn't open cdrom handle\n");
568 driver_request[4] |= 0x80;
569 driver_request[3] = 1; /* unknown unit */
573 fmt.Format = IOCTL_CDROM_CURRENT_POSITION;
574 if (!DeviceIoControl(h, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, NULL) ||
575 !DeviceIoControl(h, IOCTL_CDROM_READ_Q_CHANNEL, &fmt, sizeof(fmt),
576 &data, sizeof(data), &br, NULL)) {
577 if (GetLastError() == STATUS_NO_MEDIA_IN_DEVICE)
579 if (driver_request[2] != 6 && driver_request[2] != 15)
581 driver_request[4] |= 0x80;
582 driver_request[3] = 2; /* drive not ready */
590 driver_request[4] |= 0x80;
591 driver_request[3] = 1; /* unknown unit */
597 switch (driver_request[2]) {
599 io_stru = (dorealmode) ?
600 PTR_REAL_TO_LIN( PTR_AT(driver_request, 16, WORD), PTR_AT(driver_request, 14, WORD) ) :
601 MapSL( MAKESEGPTR(PTR_AT(driver_request, 16, WORD), PTR_AT(driver_request, 14, WORD)));
603 TRACE(" --> IOCTL INPUT <%d>\n", io_stru[0]);
604 switch (io_stru[0]) {
606 case 0: /* Get device Header */
608 static LPSTR ptr = 0;
610 ptr = SEGPTR_ALLOC(22);
611 PTR_AT(ptr, 0, DWORD) = ~1; /* Next Device Driver */
612 PTR_AT(ptr, 4, WORD) = 0xC800; /* Device attributes */
613 PTR_AT(ptr, 6, WORD) = 0x1234; /* Pointer to device strategy routine: FIXME */
614 PTR_AT(ptr, 8, WORD) = 0x3142; /* Pointer to device interrupt routine: FIXME */
615 PTR_AT(ptr, 10, char) = 'W'; /* 8-byte character device name field */
616 PTR_AT(ptr, 11, char) = 'I';
617 PTR_AT(ptr, 12, char) = 'N';
618 PTR_AT(ptr, 13, char) = 'E';
619 PTR_AT(ptr, 14, char) = '_';
620 PTR_AT(ptr, 15, char) = 'C';
621 PTR_AT(ptr, 16, char) = 'D';
622 PTR_AT(ptr, 17, char) = '_';
623 PTR_AT(ptr, 18, WORD) = 0; /* Reserved (must be zero) */
624 PTR_AT(ptr, 20, BYTE) = 0; /* Drive letter (must be zero) */
625 PTR_AT(ptr, 21, BYTE) = 1; /* Number of units supported (one or more) FIXME*/
627 PTR_AT(io_stru, DWORD, 0) = SEGPTR_GET(ptr);
632 case 1: /* location of head */
633 switch (io_stru[1]) {
635 PTR_AT(io_stru, 2, DWORD) =
636 FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress);
639 MSCDEX_StoreMSF(FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress),
643 ERR("CD-ROM driver: unsupported addressing mode !!\n");
646 TRACE(" ----> HEAD LOCATION <%d>\n", PTR_AT(io_stru, 2, DWORD));
649 case 4: /* Audio channel info */
658 TRACE(" ----> AUDIO CHANNEL INFO\n");
661 case 6: /* device status */
662 PTR_AT(io_stru, 1, DWORD) = 0x00000290;
664 * 1 Supports HSG and Red Book addressing modes
665 * 0 Supports audio channel manipulation
667 * 1 Supports prefetching requests
670 * 1 Data read and plays audio/video tracks
673 * 0 Supports only cooked reading
675 * 0 see below (Door closed/opened)
677 if (!present) PTR_AT(io_stru, 1, DWORD) |= 1;
678 TRACE(" ----> DEVICE STATUS <0x%08x>\n", PTR_AT(io_stru, 1, DWORD));
681 case 8: /* Volume size */
682 PTR_AT(io_stru, 1, DWORD) = FRAME_OF_TOC(toc, toc.LastTrack + 1) -
683 FRAME_OF_TOC(toc, toc.FirstTrack) - 1;
684 TRACE(" ----> VOLUME SIZE <%d>\n", PTR_AT(io_stru, 1, DWORD));
687 case 9: /* media changed ? */
688 /* answers don't know... -1/1 for yes/no would be better */
689 io_stru[1] = 0; /* FIXME? 1? */
690 TRACE(" ----> MEDIA CHANGED <%d>\n", io_stru[1]);
693 case 10: /* audio disk info */
694 io_stru[1] = toc.FirstTrack; /* starting track of the disc */
695 io_stru[2] = toc.LastTrack; /* ending track */
696 MSCDEX_StoreMSF(FRAME_OF_TOC(toc, toc.LastTrack + 1) -
697 FRAME_OF_TOC(toc, toc.FirstTrack) - 1, io_stru + 3);
699 TRACE(" ----> AUDIO DISK INFO <%d-%d/%08x>\n",
700 io_stru[1], io_stru[2], PTR_AT(io_stru, 3, DWORD));
703 case 11: /* audio track info */
704 if (io_stru[1] >= toc.FirstTrack && io_stru[1] <= toc.LastTrack) {
705 MSCDEX_StoreMSF(FRAME_OF_TOC(toc, io_stru[1]), io_stru + 2);
706 /* starting point if the track */
707 io_stru[6] = CTRL_OF_TOC(toc, io_stru[1]);
709 PTR_AT(io_stru, 2, DWORD) = 0;
712 TRACE(" ----> AUDIO TRACK INFO[%d] = [%08x:%d]\n",
713 io_stru[1], PTR_AT(io_stru, 2, DWORD), io_stru[6]);
716 case 12: /* get Q-Channel info */
717 io_stru[1] = CTRL_OF_TOC(toc, data.CurrentPosition.TrackNumber);
718 io_stru[2] = data.CurrentPosition.TrackNumber;
719 io_stru[3] = 0; /* FIXME ?? */
721 /* why the heck did MS use another format for 0MSF information... sigh */
725 MSCDEX_StoreMSF(FRAME_OF_ADDR(data.CurrentPosition.TrackRelativeAddress), bTmp);
726 io_stru[ 4] = bTmp[2];
727 io_stru[ 5] = bTmp[1];
728 io_stru[ 6] = bTmp[0];
731 MSCDEX_StoreMSF(FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress), bTmp);
732 io_stru[ 8] = bTmp[2];
733 io_stru[ 9] = bTmp[1];
734 io_stru[10] = bTmp[0];
737 TRACE("Q-Channel info: Ctrl/adr=%02x TNO=%02x X=%02x rtt=%02x:%02x:%02x rtd=%02x:%02x:%02x (cf=%08x, tp=%08x)\n",
738 io_stru[ 1], io_stru[ 2], io_stru[ 3],
739 io_stru[ 4], io_stru[ 5], io_stru[ 6],
740 io_stru[ 8], io_stru[ 9], io_stru[10],
741 FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress),
742 FRAME_OF_TOC(toc, data.CurrentPosition.TrackNumber));
745 case 15: /* Audio status info */
746 /* !!!! FIXME FIXME FIXME !! */
747 PTR_AT(io_stru, 1, WORD) = 2 | ((data.CurrentPosition.Header.AudioStatus == AUDIO_STATUS_PAUSED) ? 1 : 0);
749 PTR_AT(io_stru, 3, DWORD) = 0;
750 PTR_AT(io_stru, 7, DWORD) = 0;
752 PTR_AT(io_stru, 3, DWORD) = FRAME_OF_TOC(toc, toc.FirstTrack);
753 PTR_AT(io_stru, 7, DWORD) = FRAME_OF_TOC(toc, toc.LastTrack + 1);
755 TRACE("Audio status info: status=%04x startLoc=%d endLoc=%d\n",
756 PTR_AT(io_stru, 1, WORD), PTR_AT(io_stru, 3, DWORD), PTR_AT(io_stru, 7, DWORD));
760 FIXME("IOCTL INPUT: Unimplemented <%d>!!\n", io_stru[0]);
767 io_stru = (dorealmode) ?
768 PTR_REAL_TO_LIN( PTR_AT(driver_request, 16, WORD), PTR_AT(driver_request, 14, WORD)) :
769 MapSL( MAKESEGPTR(PTR_AT(driver_request, 16, WORD), PTR_AT(driver_request, 14, WORD)));
771 TRACE(" --> IOCTL OUTPUT <%d>\n", io_stru[0]);
772 switch (io_stru[0]) {
774 DeviceIoControl(h, IOCTL_STORAGE_EJECT_MEDIA, NULL, 0, NULL, 0, &br, NULL);
775 TRACE(" ----> EJECT\n");
777 case 2: /* reset drive */
778 DeviceIoControl(h, IOCTL_STORAGE_RESET_DEVICE, NULL, 0, NULL, 0, &br, NULL);
779 TRACE(" ----> RESET\n");
781 case 3: /* Audio Channel Control */
782 FIXME(" ----> AUDIO CHANNEL CONTROL (NIY)\n");
784 case 5: /* close tray */
785 DeviceIoControl(h, IOCTL_STORAGE_LOAD_MEDIA, NULL, 0, NULL, 0, &br, NULL);
786 TRACE(" ----> CLOSE TRAY\n");
789 FIXME(" IOCTL OUTPUT: Unimplemented <%d>!!\n", io_stru[0]);
795 case 128: /* read long */
797 LPVOID dst = MapSL(MAKESEGPTR(PTR_AT(driver_request, 16, WORD),
798 PTR_AT(driver_request, 14, WORD)));
799 DWORD at = PTR_AT(driver_request, 20, DWORD);
800 WORD num = PTR_AT(driver_request, 18, WORD);
803 switch (driver_request[13]) {
804 case 1: /* Red book addressing mode = 0:m:s:f */
805 /* FIXME : frame <=> msf conversion routines could be shared
806 * between mscdex and mcicda
808 at = LOBYTE(HIWORD(at)) * CDFRAMES_PERMIN +
809 HIBYTE(LOWORD(at)) * CDFRAMES_PERSEC +
812 case 0: /* HSG addressing mode */
813 switch (PTR_AT(driver_request, 24, BYTE))
816 ReadFile(h, dst, num * 2048, &br, NULL);
819 /* FIXME: computation is wrong */
820 rri.DiskOffset.u.HighPart = 0;
821 rri.DiskOffset.u.LowPart = at << 11;
822 rri.TrackMode = YellowMode2;
823 rri.SectorCount = num;
824 DeviceIoControl(h, IOCTL_CDROM_RAW_READ, &rri, sizeof(rri),
825 dst, num * 2352, &br, NULL);
828 ERR("Unsupported read mode !!\n");
834 ERR("Unsupported address mode !!\n");
844 CDROM_SEEK_AUDIO_MSF seek;
846 at = PTR_AT(driver_request, 20, DWORD);
848 TRACE(" --> SEEK AUDIO mode :<0x%02X>, [%d]\n", driver_request[13], at);
850 switch (driver_request[13]) {
851 case 1: /* Red book addressing mode = 0:m:s:f */
852 /* FIXME : frame <=> msf conversion routines could be shared
853 * between mscdex and mcicda
855 at = LOBYTE(HIWORD(at)) * CDFRAMES_PERMIN +
856 HIBYTE(LOWORD(at)) * CDFRAMES_PERSEC +
859 case 0: /* HSG addressing mode */
860 seek.M = at / CDFRAMES_PERMIN;
861 seek.S = (at / CDFRAMES_PERSEC) % 60;
862 seek.F = at % CDFRAMES_PERSEC;
863 DeviceIoControl(h, IOCTL_CDROM_SEEK_AUDIO_MSF, &seek, sizeof(seek),
867 ERR("Unsupported address mode !!\n");
877 CDROM_PLAY_AUDIO_MSF play;
879 beg = end = PTR_AT(driver_request, 14, DWORD);
880 end += PTR_AT(driver_request, 18, DWORD);
882 TRACE(" --> PLAY AUDIO mode :<0x%02X>, [%d-%d]\n", driver_request[13], beg, end);
884 switch (driver_request[13]) {
886 /* Red book addressing mode = 0:m:s:f */
887 /* FIXME : frame <=> msf conversion routines could be shared
888 * between mscdex and mcicda
890 beg = LOBYTE(LOWORD(beg)) * CDFRAMES_PERMIN +
891 HIBYTE(LOWORD(beg)) * CDFRAMES_PERSEC +
893 end = LOBYTE(LOWORD(end)) * CDFRAMES_PERMIN +
894 HIBYTE(LOWORD(end)) * CDFRAMES_PERSEC +
897 case 0: /* HSG addressing mode */
898 play.StartingM = beg / CDFRAMES_PERMIN;
899 play.StartingS = (beg / CDFRAMES_PERSEC) % 60;
900 play.StartingF = beg % CDFRAMES_PERSEC;
901 play.EndingM = end / CDFRAMES_PERMIN;
902 play.EndingS = (end / CDFRAMES_PERSEC) % 60;
903 play.EndingF = end % CDFRAMES_PERSEC;
904 DeviceIoControl(h, IOCTL_CDROM_PLAY_AUDIO_MSF, &play, sizeof(play),
908 ERR("Unsupported address mode !!\n");
916 if (data.CurrentPosition.Header.AudioStatus == AUDIO_STATUS_IN_PROGRESS) {
917 DeviceIoControl(h, IOCTL_CDROM_PAUSE_AUDIO, NULL, 0, NULL, 0, &br, NULL);
918 TRACE(" --> STOP AUDIO (Paused)\n");
920 DeviceIoControl(h, IOCTL_CDROM_STOP_AUDIO, NULL, 0, NULL, 0, &br, NULL);
921 TRACE(" --> STOP AUDIO (Stopped)\n");
926 TRACE(" --> RESUME AUDIO\n");
927 DeviceIoControl(h, IOCTL_CDROM_PAUSE_AUDIO, NULL, 0, NULL, 0, &br, NULL);
931 FIXME(" ioctl unimplemented <%d>\n", driver_request[2]);
935 /* setting error codes if any */
937 driver_request[4] |= 0x80;
938 driver_request[3] = Error;
942 /* setting status bits
943 * 3 == playing && done
947 (data.CurrentPosition.Header.AudioStatus == AUDIO_STATUS_IN_PROGRESS) ? 3 : 1;
949 MSCDEX_Dump("End", driver_request, dorealmode);
952 static void MSCDEX_Handler(CONTEXT* context)
957 switch (LOBYTE(context->Eax)) {
958 case 0x00: /* Installation check */
959 /* Count the number of contiguous CDROM drives
961 for (drive = count = 0; drive < 26; drive++) {
962 if (is_cdrom(drive)) {
963 while (is_cdrom(drive + count)) count++;
967 TRACE("Installation check: %d cdroms, starting at %d\n", count, drive);
968 SET_BX( context, count );
969 SET_CX( context, (drive < 26) ? drive : 0 );
972 case 0x01: /* get drive device list */
974 CDROM_HEAP* cdrom_heap = CDROM_GetHeap();
975 CDROM_DEVICE_HEADER* dev = &cdrom_heap->hdr;
976 SEGPTR ptr_dev = ISV86(context)
977 ? MAKESEGPTR( cdrom_heap->cdrom_segment,
978 FIELD_OFFSET(CDROM_HEAP, hdr) )
979 : MAKESEGPTR( cdrom_heap->cdrom_selector,
980 FIELD_OFFSET(CDROM_HEAP, hdr) );
982 p = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
983 for (drive = 0; drive < dev->units; drive++) {
984 *p = drive; /* subunit */
986 *(DWORD*)p = ptr_dev;
989 TRACE("Get drive device list\n");
993 case 0x0B: /* drive check */
994 SET_AX( context, is_cdrom(CX_reg(context)) );
995 SET_BX( context, 0xADAD );
998 case 0x0C: /* get version */
999 SET_BX( context, 0x020a );
1000 TRACE("Version number => %04x\n", BX_reg(context));
1003 case 0x0D: /* get drive letters */
1004 p = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
1006 for (drive = 0; drive < 26; drive++) {
1007 if (is_cdrom(drive)) *p++ = drive;
1009 TRACE("Get drive letters\n");
1012 case 0x10: /* direct driver access */
1014 BYTE* driver_request;
1015 CDROM_HEAP* cdrom_heap = CDROM_GetHeap();
1017 if (!is_cdrom(CX_reg(context))) {
1018 WARN("Request made doesn't match a CD ROM drive (%d)\n", CX_reg(context));
1019 SET_CFLAG( context );
1020 SET_AX( context, 0x000f ); /* invalid drive */
1024 driver_request = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
1026 if (!driver_request) {
1027 /* FIXME - to be deleted ?? */
1028 ERR("ES:BX==0 ! SEGFAULT ?\n");
1029 ERR("-->BX=0x%04x, ES=0x%04x, DS=0x%04x, CX=0x%04x\n",
1030 BX_reg(context), context->SegEs, context->SegDs, CX_reg(context));
1031 driver_request[4] |= 0x80;
1032 driver_request[3] = 5; /* bad request length */
1036 driver_request[1] = CX_reg(context) - cdrom_heap->hdr.drive;
1037 MSCDEX_Request(driver_request, ISV86(context));
1041 FIXME("Unimplemented MSCDEX function 0x%02X.\n", LOBYTE(context->Eax));
1047 static void WINAPI cdrom_strategy(CONTEXT*ctx);
1048 static void WINAPI cdrom_interrupt(CONTEXT*ctx);
1051 static const WINEDEV cdromdev =
1054 ATTR_CHAR|ATTR_REMOVABLE|ATTR_IOCTL,
1055 cdrom_strategy, cdrom_interrupt
1058 static REQUEST_HEADER *cdrom_driver_request;
1060 /* Return to caller */
1061 static void do_lret(CONTEXT*ctx)
1063 WORD *stack = CTX_SEG_OFF_TO_LIN(ctx, ctx->SegSs, ctx->Esp);
1065 ctx->Eip = *(stack++);
1066 ctx->SegCs = *(stack++);
1067 ctx->Esp += 2*sizeof(WORD);
1070 static void WINAPI cdrom_strategy(CONTEXT*ctx)
1072 cdrom_driver_request = CTX_SEG_OFF_TO_LIN(ctx, ctx->SegEs, ctx->Ebx);
1076 static void WINAPI cdrom_interrupt(CONTEXT*ctx)
1078 if (cdrom_driver_request->unit > CDROM_GetHeap()->hdr.units)
1079 cdrom_driver_request->status = STAT_ERROR | 1; /* unknown unit */
1081 MSCDEX_Request((BYTE*)cdrom_driver_request, ISV86(ctx));
1086 /**********************************************************************
1087 * MSCDEX_InstallCDROM [internal]
1089 * Install the CDROM driver into the DOS device driver chain.
1091 void MSCDEX_InstallCDROM(void)
1093 CDROM_HEAP *cdrom_heap = CDROM_GetHeap();
1095 DOSDEV_SetupDevice( &cdromdev,
1096 cdrom_heap->cdrom_segment,
1097 FIELD_OFFSET(CDROM_HEAP, hdr),
1098 FIELD_OFFSET(CDROM_HEAP, thunk) );