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dsound: Base fragment size off of the MMDevice's period.
[wine.git] / dlls / krnl386.exe16 / int2f.c
blob3535ec32704485367fd621f18d3c498d50656c9b
1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
2 /*
3 * DOS interrupt 2fh handler
4 *
5 * Cdrom - device driver emulation - Audio features.
6 * Copyright (c) 1998 Petr Tomasek <tomasek@etf.cuni.cz>
7 * Copyright (c) 1999,2002 Eric Pouech
8 *
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.
13 *
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.
18 *
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
22 */
23
24 #include "config.h"
25
26 #include <string.h>
27
28 #define NONAMELESSUNION
29 #define NONAMELESSSTRUCT
30 #include "ntstatus.h"
31 #define WIN32_NO_STATUS
32 #include "wine/winbase16.h"
33 #include "wine/debug.h"
34 #include "winternl.h"
35 #include "winioctl.h"
36 #include "ntddstor.h"
37 #include "ntddcdrm.h"
38 #include "dosexe.h"
39
40 WINE_DEFAULT_DEBUG_CHANNEL(int);
41
42 /* base KERNEL ordinal number for VxDs */
43 #define VXD_BASE 900
44
45 typedef struct
46 {
47 DOS_DEVICE_HEADER hdr;
48
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;
53
54 typedef struct
55 {
56 CDROM_DEVICE_HEADER hdr;
57 WINEDEV_THUNK thunk;
58
59 WORD cdrom_segment; /* Real mode segment for CDROM_HEAP */
60 WORD cdrom_selector; /* Protected mode selector for CDROM_HEAP */
61 } CDROM_HEAP;
62
63 static void do_int2f_16( CONTEXT *context );
64 static void MSCDEX_Handler( CONTEXT *context );
65
66 /**********************************************************************
67 * DOSVM_Int2fHandler
68 *
69 * Handler for int 2fh (multiplex).
70 */
71 void WINAPI DOSVM_Int2fHandler( CONTEXT *context )
72 {
73 TRACE("Subfunction 0x%X\n", AX_reg(context));
74
75 switch(AH_reg(context))
76 {
77 case 0x10:
78 SET_AL( context, 0xff ); /* share is installed */
79 break;
80
81 case 0x11: /* Network Redirector / IFSFUNC */
82 switch (LOBYTE(context->Eax))
83 {
84 case 0x00: /* Install check */
85 /* not installed */
86 break;
87 case 0x80: /* Enhanced services - Install check */
88 /* not installed */
89 break;
90 default:
91 INT_BARF( context, 0x2f );
92 break;
93 }
94 break;
95
96 case 0x12:
97 switch (LOBYTE(context->Eax))
98 {
99 case 0x2e: /* get or set DOS error table address */
100 switch (DL_reg(context))
101 {
102 /* Four tables: even commands are 'get', odd are 'set' */
103 /* DOS 5.0+ ignores "set" commands */
104 case 0x01:
105 case 0x03:
106 case 0x05:
107 case 0x07:
108 case 0x09:
109 break;
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. */
113 case 0x00:
114 case 0x02:
115 case 0x04:
116 case 0x06:
117 context->SegEs = 0x0001;
118 SET_DI( context, 0x0000 );
119 break;
120 case 0x08:
121 FIXME("No real-mode handler for errors yet! (bye!)\n");
122 break;
123 default:
124 INT_BARF(context, 0x2f);
125 }
126 break;
127 default:
128 INT_BARF(context, 0x2f);
129 }
130 break;
131
132 case 0x15: /* mscdex */
133 MSCDEX_Handler(context);
134 break;
135
136 case 0x16:
137 do_int2f_16( context );
138 break;
139
140 case 0x1a: /* ANSI.SYS / AVATAR.SYS Install Check */
141 /* Not supported yet, do nothing */
142 break;
143
144 case 0x43:
145 #if 1
146 switch (LOBYTE(context->Eax))
147 {
148 case 0x00: /* XMS v2+ installation check */
149 WARN("XMS is not fully implemented\n");
150 SET_AL( context, 0x80 );
151 break;
152 case 0x10: /* XMS v2+ get driver address */
153 {
154 context->SegEs = DOSVM_dpmi_segments->xms_seg;
155 SET_BX( context, 0 );
156 break;
157 }
158 default:
159 INT_BARF( context, 0x2f );
160 }
161 #else
162 FIXME("check for XMS (not supported)\n");
163 SET_AL( context, 0x42 ); /* != 0x80 */
164 #endif
165 break;
166
167 case 0x45:
168 switch (LOBYTE(context->Eax))
169 {
170 case 0x00:
171 case 0x01:
172 case 0x02:
173 case 0x03:
174 case 0x04:
175 case 0x05:
176 case 0x06:
177 case 0x07:
178 case 0x08:
179 /* Microsoft Profiler - not installed */
180 break;
181 default:
182 INT_BARF( context, 0x2f );
183 }
184 break;
185
186 case 0x4a:
187 switch(LOBYTE(context->Eax))
188 {
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 :-/ */
197 default:
198 INT_BARF( context, 0x2f );
199 }
200 break;
201 case 0x4b:
202 switch(LOBYTE(context->Eax))
203 {
204 case 0x01:
205 case 0x02:
206 case 0x03:
207 case 0x04:
208 case 0x05:
209 FIXME("Task Switcher - not implemented\n");
210 break;
211 default:
212 INT_BARF( context, 0x2f );
213 }
214 break;
215 case 0x56: /* INTERLNK */
216 switch(LOBYTE(context->Eax))
217 {
218 case 0x01: /* check if redirected drive */
219 SET_AL( context, 0 ); /* not redirected */
220 break;
221 default:
222 INT_BARF( context, 0x2f );
223 }
224 break;
225 case 0x7a: /* NOVELL NetWare */
226 switch (LOBYTE(context->Eax))
227 {
228 case 0x0: /* Low-level Netware installation check AL=0 not installed.*/
229 SET_AL( context, 0 );
230 break;
231 case 0x20: /* Get VLM Call Address */
232 /* return nothing -> NetWare not installed */
233 break;
234 default:
235 INT_BARF( context, 0x2f );
236 break;
237 }
238 break;
239 case 0xb7: /* append */
240 SET_AL( context, 0 ); /* not installed */
241 break;
242 case 0xb8: /* network */
243 switch (LOBYTE(context->Eax))
244 {
245 case 0x00: /* Install check */
246 /* not installed */
247 break;
248 default:
249 INT_BARF( context, 0x2f );
250 break;
251 }
252 break;
253 case 0xbc:
254 if (AL_reg(context) == 0x00 && BX_reg(context) == 0x3f3f) {
255 /* MVSOUND.SYS - Install check: not installed */
256 } else {
257 INT_BARF( context, 0x2f );
258 }
259 break;
260 case 0xbd: /* some Novell network install check ??? */
261 SET_AX( context, 0xa5a5 ); /* pretend to have Novell IPX installed */
262 break;
263 case 0xbf: /* REDIRIFS.EXE */
264 switch (LOBYTE(context->Eax))
265 {
266 case 0x00: /* Install check */
267 /* not installed */
268 break;
269 default:
270 INT_BARF( context, 0x2f );
271 break;
272 }
273 break;
274 case 0xd2:
275 switch(LOBYTE(context->Eax))
276 {
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");
281 break;
282 default:
283 INT_BARF( context, 0x2f );
284 break;
285 }
286 break;
287 case 0xd7: /* Banyan Vines */
288 switch (LOBYTE(context->Eax))
289 {
290 case 0x01: /* Install check - Get Int Number */
291 /* not installed */
292 break;
293 default:
294 INT_BARF( context, 0x2f );
295 break;
296 }
297 break;
298 case 0xde:
299 switch(LOBYTE(context->Eax))
300 {
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");
305 break;
306 default:
307 INT_BARF( context, 0x2f );
308 break;
309 }
310 break;
311 case 0xfa: /* Watcom debugger check, returns 0x666 if installed */
312 break;
313 default:
314 INT_BARF( context, 0x2f );
315 break;
316 }
317 }
318
319
320 /**********************************************************************
321 * do_int2f_16
322 */
323 static void do_int2f_16( CONTEXT *context )
324 {
325 DWORD addr;
326
327 switch(LOBYTE(context->Eax))
328 {
329 case 0x00: /* Windows enhanced mode installation check */
330 SET_AX( context, LOWORD(GetVersion16()) );
331 break;
332
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 );
337 break;
338
339 case 0x0b: /* Identify Windows-aware TSRs */
340 /* we don't have any pre-Windows TSRs */
341 break;
342
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");
346 break;
347
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...
359 */
360 Sleep(55); /* just wait 55ms (one "timer tick") for now. */
361 SET_AL( context, 0 );
362 break;
363
364 case 0x81: /* Begin critical section. */
365 /* FIXME? */
366 break;
367
368 case 0x82: /* End critical section. */
369 /* FIXME? */
370 break;
371
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.
377 */
378 SET_BX( context, 1 ); /* VM 1 is probably the System VM */
379 break;
380
381 case 0x84: /* Get device API entry point */
382 {
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) );
389 }
390 break;
391
392 case 0x86: /* DPMI detect mode */
393 SET_AX( context, 0 ); /* Running under DPMI */
394 break;
395
396 case 0x87: /* DPMI installation check */
397 {
398 SYSTEM_INFO si;
399 GetSystemInfo(&si);
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 */
407 break;
408 }
409 case 0x8a: /* DPMI get vendor-specific API entry point. */
410 /* The 1.0 specs say this should work with all 0.9 hosts. */
411 break;
412
413 default:
414 INT_BARF( context, 0x2f );
415 }
416 }
417
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
423 */
424 #define PTR_AT(_ptr, _ofs, _typ) (*((_typ*)(((char*)_ptr)+(_ofs))))
425
426 /* Use #if 1 if you want full int 2f debug... normal users can leave it at 0 */
427 #if 0
428 /**********************************************************************
429 * MSCDEX_Dump [internal]
430 *
431 * Dumps mscdex requests to int debug channel.
432 */
433 static void MSCDEX_Dump(char* pfx, BYTE* req, int dorealmode)
434 {
435 int i;
436 BYTE buf[2048];
437 BYTE* ptr;
438 BYTE* ios;
439
440 ptr = buf;
441 ptr += sprintf(ptr, "%s\tCommand => ", pfx);
442 for (i = 0; i < req[0]; i++) {
443 ptr += sprintf(ptr, "%02x ", req[i]);
444 }
445
446 switch (req[2]) {
447 case 3:
448 case 12:
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)));
452
453 for (i = 0; i < PTR_AT(req, 18, WORD); i++) {
454 ptr += sprintf(ptr, "%02x ", ios[i]);
455 if ((i & 0x1F) == 0x1F) {
456 *ptr++ = '\n';
457 *ptr = 0;
458 }
459 }
460 break;
461 }
462 TRACE("%s\n", buf);
463 }
464 #else
465 #define MSCDEX_Dump(pfx, req, drm)
466 #endif
467
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)
474
475 static void MSCDEX_StoreMSF(DWORD frame, BYTE* val)
476 {
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 */
481 }
482
483 static int is_cdrom( int drive)
484 {
485 char root[] = "A:\\";
486 root[0] += drive;
487 return (GetDriveTypeA(root) == DRIVE_CDROM);
488 }
489
490 /***********************************************************************
491 * CDROM_FillHeap
492 *
493 * Initialize CDROM heap.
494 *
495 */
496 static void CDROM_FillHeap( CDROM_HEAP *heap )
497 {
498 int drive, count;
499
500 /* Count the number of contiguous CDROM drives
501 */
502 for (drive = count = 0; drive < 26; drive++) {
503 if (is_cdrom(drive)) {
504 while (is_cdrom(drive + count)) count++;
505 break;
506 }
507 }
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;
512 }
513
514 /**********************************************************************
515 * CDROM_GetHeap
516 *
517 * Get pointer for CDROM heap (CDROM_HEAP).
518 * Creates and initializes heap on first call.
519 */
520 static CDROM_HEAP *CDROM_GetHeap( void )
521 {
522 static CDROM_HEAP *heap_pointer = NULL;
523
524 if ( !heap_pointer )
525 {
526 WORD heap_segment;
527 WORD heap_selector;
528
529 /* allocate a new DOS data segment */
530 heap_pointer = DOSVM_AllocDataUMB( sizeof(CDROM_HEAP),
531 &heap_segment,
532 &heap_selector );
533
534 heap_pointer->cdrom_segment = heap_segment;
535 heap_pointer->cdrom_selector = heap_selector;
536 CDROM_FillHeap( heap_pointer );
537 }
538
539 return heap_pointer;
540 }
541
542 static void MSCDEX_Request(BYTE *driver_request, BOOL dorealmode)
543 {
544 BYTE* io_stru;
545 BYTE Error = 255; /* No Error */
546 char devName[] = "\\\\.\\@:";
547 HANDLE h;
548 CDROM_TOC toc;
549 CDROM_SUB_Q_DATA_FORMAT fmt;
550 SUB_Q_CHANNEL_DATA data;
551 DWORD br;
552 DWORD present = TRUE;
553
554 /* FIXME
555 * the following tests are wrong because lots of functions don't require the
556 * tray to be closed with a CD inside
557 */
558 TRACE("CDROM device driver -> command <%d>\n", driver_request[2]);
559
560 MSCDEX_Dump("Beg", driver_request, dorealmode);
561
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 */
570 return;
571 }
572
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)
578 {
579 if (driver_request[2] != 6 && driver_request[2] != 15)
580 {
581 driver_request[4] |= 0x80;
582 driver_request[3] = 2; /* drive not ready */
583 CloseHandle(h);
584 return;
585 }
586 present = FALSE;
587 }
588 else
589 {
590 driver_request[4] |= 0x80;
591 driver_request[3] = 1; /* unknown unit */
592 CloseHandle(h);
593 return;
594 }
595 }
596
597 switch (driver_request[2]) {
598 case 3:
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)));
602
603 TRACE(" --> IOCTL INPUT <%d>\n", io_stru[0]);
604 switch (io_stru[0]) {
605 #if 0
606 case 0: /* Get device Header */
607 {
608 static LPSTR ptr = 0;
609 if (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*/
626 }
627 PTR_AT(io_stru, DWORD, 0) = SEGPTR_GET(ptr);
628 }
629 break;
630 #endif
631
632 case 1: /* location of head */
633 switch (io_stru[1]) {
634 case 0:
635 PTR_AT(io_stru, 2, DWORD) =
636 FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress);
637 break;
638 case 1:
639 MSCDEX_StoreMSF(FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress),
640 io_stru + 2);
641 break;
642 default:
643 ERR("CD-ROM driver: unsupported addressing mode !!\n");
644 Error = 0x0c;
645 }
646 TRACE(" ----> HEAD LOCATION <%d>\n", PTR_AT(io_stru, 2, DWORD));
647 break;
648
649 case 4: /* Audio channel info */
650 io_stru[1] = 0;
651 io_stru[2] = 0xff;
652 io_stru[3] = 1;
653 io_stru[4] = 0xff;
654 io_stru[5] = 2;
655 io_stru[6] = 0;
656 io_stru[7] = 3;
657 io_stru[8] = 0;
658 TRACE(" ----> AUDIO CHANNEL INFO\n");
659 break;
660
661 case 6: /* device status */
662 PTR_AT(io_stru, 1, DWORD) = 0x00000290;
663 /* 290 =>
664 * 1 Supports HSG and Red Book addressing modes
665 * 0 Supports audio channel manipulation
666 *
667 * 1 Supports prefetching requests
668 * 0 Reserved
669 * 0 No interleaving
670 * 1 Data read and plays audio/video tracks
671 *
672 * 0 Read only
673 * 0 Supports only cooked reading
674 * 0 Door locked
675 * 0 see below (Door closed/opened)
676 */
677 if (!present) PTR_AT(io_stru, 1, DWORD) |= 1;
678 TRACE(" ----> DEVICE STATUS <0x%08x>\n", PTR_AT(io_stru, 1, DWORD));
679 break;
680
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));
685 break;
686
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]);
691 break;
692
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);
698
699 TRACE(" ----> AUDIO DISK INFO <%d-%d/%08x>\n",
700 io_stru[1], io_stru[2], PTR_AT(io_stru, 3, DWORD));
701 break;
702
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]);
708 } else {
709 PTR_AT(io_stru, 2, DWORD) = 0;
710 io_stru[6] = 0;
711 }
712 TRACE(" ----> AUDIO TRACK INFO[%d] = [%08x:%d]\n",
713 io_stru[1], PTR_AT(io_stru, 2, DWORD), io_stru[6]);
714 break;
715
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 ?? */
720
721 /* why the heck did MS use another format for 0MSF information... sigh */
722 {
723 BYTE bTmp[4];
724
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];
729 io_stru[ 7] = 0;
730
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];
735 io_stru[11] = 0;
736 }
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));
743 break;
744
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);
748 if (!present) {
749 PTR_AT(io_stru, 3, DWORD) = 0;
750 PTR_AT(io_stru, 7, DWORD) = 0;
751 } else {
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);
754 }
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));
757 break;
758
759 default:
760 FIXME("IOCTL INPUT: Unimplemented <%d>!!\n", io_stru[0]);
761 Error = 0x0c;
762 break;
763 }
764 break;
765
766 case 12:
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)));
770
771 TRACE(" --> IOCTL OUTPUT <%d>\n", io_stru[0]);
772 switch (io_stru[0]) {
773 case 0: /* eject */
774 DeviceIoControl(h, IOCTL_STORAGE_EJECT_MEDIA, NULL, 0, NULL, 0, &br, NULL);
775 TRACE(" ----> EJECT\n");
776 break;
777 case 2: /* reset drive */
778 DeviceIoControl(h, IOCTL_STORAGE_RESET_DEVICE, NULL, 0, NULL, 0, &br, NULL);
779 TRACE(" ----> RESET\n");
780 break;
781 case 3: /* Audio Channel Control */
782 FIXME(" ----> AUDIO CHANNEL CONTROL (NIY)\n");
783 break;
784 case 5: /* close tray */
785 DeviceIoControl(h, IOCTL_STORAGE_LOAD_MEDIA, NULL, 0, NULL, 0, &br, NULL);
786 TRACE(" ----> CLOSE TRAY\n");
787 break;
788 default:
789 FIXME(" IOCTL OUTPUT: Unimplemented <%d>!!\n", io_stru[0]);
790 Error = 0x0c;
791 break;
792 }
793 break;
794
795 case 128: /* read long */
796 {
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);
801 RAW_READ_INFO rri;
802
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
807 */
808 at = LOBYTE(HIWORD(at)) * CDFRAMES_PERMIN +
809 HIBYTE(LOWORD(at)) * CDFRAMES_PERSEC +
810 LOBYTE(LOWORD(at));
811 /* fall through */
812 case 0: /* HSG addressing mode */
813 switch (PTR_AT(driver_request, 24, BYTE))
814 {
815 case 0: /* cooked */
816 ReadFile(h, dst, num * 2048, &br, NULL);
817 break;
818 case 1:
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);
826 break;
827 default:
828 ERR("Unsupported read mode !!\n");
829 Error = 0x0c;
830 break;
831 }
832 break;
833 default:
834 ERR("Unsupported address mode !!\n");
835 Error = 0x0c;
836 break;
837 }
838 }
839 break;
840
841 case 131: /* seek */
842 {
843 DWORD at;
844 CDROM_SEEK_AUDIO_MSF seek;
845
846 at = PTR_AT(driver_request, 20, DWORD);
847
848 TRACE(" --> SEEK AUDIO mode :<0x%02X>, [%d]\n", driver_request[13], at);
849
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
854 */
855 at = LOBYTE(HIWORD(at)) * CDFRAMES_PERMIN +
856 HIBYTE(LOWORD(at)) * CDFRAMES_PERSEC +
857 LOBYTE(LOWORD(at));
858 /* fall through */
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),
864 NULL, 0, &br, NULL);
865 break;
866 default:
867 ERR("Unsupported address mode !!\n");
868 Error = 0x0c;
869 break;
870 }
871 }
872 break;
873
874 case 132: /* play */
875 {
876 DWORD beg, end;
877 CDROM_PLAY_AUDIO_MSF play;
878
879 beg = end = PTR_AT(driver_request, 14, DWORD);
880 end += PTR_AT(driver_request, 18, DWORD);
881
882 TRACE(" --> PLAY AUDIO mode :<0x%02X>, [%d-%d]\n", driver_request[13], beg, end);
883
884 switch (driver_request[13]) {
885 case 1:
886 /* Red book addressing mode = 0:m:s:f */
887 /* FIXME : frame <=> msf conversion routines could be shared
888 * between mscdex and mcicda
889 */
890 beg = LOBYTE(LOWORD(beg)) * CDFRAMES_PERMIN +
891 HIBYTE(LOWORD(beg)) * CDFRAMES_PERSEC +
892 LOBYTE(HIWORD(beg));
893 end = LOBYTE(LOWORD(end)) * CDFRAMES_PERMIN +
894 HIBYTE(LOWORD(end)) * CDFRAMES_PERSEC +
895 LOBYTE(HIWORD(end));
896 /* fall through */
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),
905 NULL, 0, &br, NULL);
906 break;
907 default:
908 ERR("Unsupported address mode !!\n");
909 Error = 0x0c;
910 break;
911 }
912 }
913 break;
914
915 case 133:
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");
919 } else {
920 DeviceIoControl(h, IOCTL_CDROM_STOP_AUDIO, NULL, 0, NULL, 0, &br, NULL);
921 TRACE(" --> STOP AUDIO (Stopped)\n");
922 }
923 break;
924
925 case 136:
926 TRACE(" --> RESUME AUDIO\n");
927 DeviceIoControl(h, IOCTL_CDROM_PAUSE_AUDIO, NULL, 0, NULL, 0, &br, NULL);
928 break;
929
930 default:
931 FIXME(" ioctl unimplemented <%d>\n", driver_request[2]);
932 Error = 0x0c;
933 }
934
935 /* setting error codes if any */
936 if (Error < 255) {
937 driver_request[4] |= 0x80;
938 driver_request[3] = Error;
939 }
940
941 CloseHandle(h);
942 /* setting status bits
943 * 3 == playing && done
944 * 1 == done
945 */
946 driver_request[4] |=
947 (data.CurrentPosition.Header.AudioStatus == AUDIO_STATUS_IN_PROGRESS) ? 3 : 1;
948
949 MSCDEX_Dump("End", driver_request, dorealmode);
950 }
951
952 static void MSCDEX_Handler(CONTEXT* context)
953 {
954 int drive, count;
955 char* p;
956
957 switch (LOBYTE(context->Eax)) {
958 case 0x00: /* Installation check */
959 /* Count the number of contiguous CDROM drives
960 */
961 for (drive = count = 0; drive < 26; drive++) {
962 if (is_cdrom(drive)) {
963 while (is_cdrom(drive + count)) count++;
964 break;
965 }
966 }
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 );
970 break;
971
972 case 0x01: /* get drive device list */
973 {
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) );
981
982 p = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
983 for (drive = 0; drive < dev->units; drive++) {
984 *p = drive; /* subunit */
985 ++p;
986 *(DWORD*)p = ptr_dev;
987 p += sizeof(DWORD);
988 }
989 TRACE("Get drive device list\n");
990 }
991 break;
992
993 case 0x0B: /* drive check */
994 SET_AX( context, is_cdrom(CX_reg(context)) );
995 SET_BX( context, 0xADAD );
996 break;
997
998 case 0x0C: /* get version */
999 SET_BX( context, 0x020a );
1000 TRACE("Version number => %04x\n", BX_reg(context));
1001 break;
1002
1003 case 0x0D: /* get drive letters */
1004 p = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
1005 memset(p, 0, 26);
1006 for (drive = 0; drive < 26; drive++) {
1007 if (is_cdrom(drive)) *p++ = drive;
1008 }
1009 TRACE("Get drive letters\n");
1010 break;
1011
1012 case 0x10: /* direct driver access */
1013 {
1014 BYTE* driver_request;
1015 CDROM_HEAP* cdrom_heap = CDROM_GetHeap();
1016
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 */
1021 return;
1022 }
1023
1024 driver_request = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
1025
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 */
1033 return;
1034 }
1035
1036 driver_request[1] = CX_reg(context) - cdrom_heap->hdr.drive;
1037 MSCDEX_Request(driver_request, ISV86(context));
1038 }
1039 break;
1040 default:
1041 FIXME("Unimplemented MSCDEX function 0x%02X.\n", LOBYTE(context->Eax));
1042 break;
1043 }
1044 }
1045
1046 /* prototypes */
1047 static void WINAPI cdrom_strategy(CONTEXT*ctx);
1048 static void WINAPI cdrom_interrupt(CONTEXT*ctx);
1049
1050 /* device info */
1051 static const WINEDEV cdromdev =
1052 {
1053 "WINE_CD_",
1054 ATTR_CHAR|ATTR_REMOVABLE|ATTR_IOCTL,
1055 cdrom_strategy, cdrom_interrupt
1056 };
1057
1058 static REQUEST_HEADER *cdrom_driver_request;
1059
1060 /* Return to caller */
1061 static void do_lret(CONTEXT*ctx)
1062 {
1063 WORD *stack = CTX_SEG_OFF_TO_LIN(ctx, ctx->SegSs, ctx->Esp);
1064
1065 ctx->Eip = *(stack++);
1066 ctx->SegCs = *(stack++);
1067 ctx->Esp += 2*sizeof(WORD);
1068 }
1069
1070 static void WINAPI cdrom_strategy(CONTEXT*ctx)
1071 {
1072 cdrom_driver_request = CTX_SEG_OFF_TO_LIN(ctx, ctx->SegEs, ctx->Ebx);
1073 do_lret( ctx );
1074 }
1075
1076 static void WINAPI cdrom_interrupt(CONTEXT*ctx)
1077 {
1078 if (cdrom_driver_request->unit > CDROM_GetHeap()->hdr.units)
1079 cdrom_driver_request->status = STAT_ERROR | 1; /* unknown unit */
1080 else
1081 MSCDEX_Request((BYTE*)cdrom_driver_request, ISV86(ctx));
1082
1083 do_lret( ctx );
1084 }
1085
1086 /**********************************************************************
1087 * MSCDEX_InstallCDROM [internal]
1088 *
1089 * Install the CDROM driver into the DOS device driver chain.
1090 */
1091 void MSCDEX_InstallCDROM(void)
1092 {
1093 CDROM_HEAP *cdrom_heap = CDROM_GetHeap();
1094
1095 DOSDEV_SetupDevice( &cdromdev,
1096 cdrom_heap->cdrom_segment,
1097 FIELD_OFFSET(CDROM_HEAP, hdr),
1098 FIELD_OFFSET(CDROM_HEAP, thunk) );
1099 }
Windows API implementation