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wine/dlls/krnl386.exe16/int2f.c
Eric Pouech 83bc5d4be7 krnl386.exe16: Enable compilation with long types. 
Signed-off-by: Eric Pouech <eric.pouech@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2022-02-11 11:21:29 +01:00

959 lines
32 KiB
C
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/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* DOS interrupt 2fh handler
*
* Cdrom - device driver emulation - Audio features.
* Copyright (c) 1998 Petr Tomasek <tomasek@etf.cuni.cz>
* Copyright (c) 1999,2002 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <string.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#define NONAMELESSUNION
#include "wine/winbase16.h"
#include "wine/debug.h"
#include "winternl.h"
#include "winioctl.h"
#include "ntddstor.h"
#include "ntddcdrm.h"
#include "dosexe.h"
WINE_DEFAULT_DEBUG_CHANNEL(int);
/* base KERNEL ordinal number for VxDs */
#define VXD_BASE 900
typedef struct
{
DOS_DEVICE_HEADER hdr;
WORD reserved; /* must be 0 */
BYTE drive; /* drive letter (0=A:, 1=B:, ...) */
BYTE units; /* number of supported units */
} CDROM_DEVICE_HEADER;
typedef struct
{
CDROM_DEVICE_HEADER hdr;
WORD cdrom_selector; /* Protected mode selector for CDROM_HEAP */
} CDROM_HEAP;
static void do_int2f_16( CONTEXT *context );
static void MSCDEX_Handler( CONTEXT *context );
/**********************************************************************
* DOSVM_Int2fHandler
*
* Handler for int 2fh (multiplex).
*/
void WINAPI DOSVM_Int2fHandler( CONTEXT *context )
{
TRACE("Subfunction 0x%X\n", AX_reg(context));
switch(AH_reg(context))
{
case 0x10:
SET_AL( context, 0xff ); /* share is installed */
break;
case 0x11: /* Network Redirector / IFSFUNC */
switch (LOBYTE(context->Eax))
{
case 0x00: /* Install check */
/* not installed */
break;
case 0x80: /* Enhanced services - Install check */
/* not installed */
break;
default:
INT_BARF( context, 0x2f );
break;
}
break;
case 0x12:
switch (LOBYTE(context->Eax))
{
case 0x2e: /* get or set DOS error table address */
switch (DL_reg(context))
{
/* Four tables: even commands are 'get', odd are 'set' */
/* DOS 5.0+ ignores "set" commands */
case 0x01:
case 0x03:
case 0x05:
case 0x07:
case 0x09:
break;
/* Instead of having a message table in DOS-space, */
/* we can use a special case for MS-DOS to force */
/* the secondary interface. */
case 0x00:
case 0x02:
case 0x04:
case 0x06:
context->SegEs = 0x0001;
SET_DI( context, 0x0000 );
break;
case 0x08:
FIXME("No real-mode handler for errors yet! (bye!)\n");
break;
default:
INT_BARF(context, 0x2f);
}
break;
default:
INT_BARF(context, 0x2f);
}
break;
case 0x15: /* mscdex */
MSCDEX_Handler(context);
break;
case 0x16:
do_int2f_16( context );
break;
case 0x1a: /* ANSI.SYS / AVATAR.SYS Install Check */
/* Not supported yet, do nothing */
break;
case 0x43:
FIXME("check for XMS (not supported)\n");
SET_AL( context, 0x42 ); /* != 0x80 */
break;
case 0x45:
switch (LOBYTE(context->Eax))
{
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
case 0x08:
/* Microsoft Profiler - not installed */
break;
default:
INT_BARF( context, 0x2f );
}
break;
case 0x4a:
switch(LOBYTE(context->Eax))
{
case 0x10: /* smartdrv */
break; /* not installed */
case 0x11: /* dblspace */
break; /* not installed */
case 0x12: /* realtime compression interface */
break; /* not installed */
case 0x32: /* patch IO.SYS (???) */
break; /* we have no IO.SYS, so we can't patch it :-/ */
default:
INT_BARF( context, 0x2f );
}
break;
case 0x4b:
switch(LOBYTE(context->Eax))
{
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
FIXME("Task Switcher - not implemented\n");
break;
default:
INT_BARF( context, 0x2f );
}
break;
case 0x56: /* INTERLNK */
switch(LOBYTE(context->Eax))
{
case 0x01: /* check if redirected drive */
SET_AL( context, 0 ); /* not redirected */
break;
default:
INT_BARF( context, 0x2f );
}
break;
case 0x7a: /* NOVELL NetWare */
switch (LOBYTE(context->Eax))
{
case 0x0: /* Low-level Netware installation check AL=0 not installed.*/
SET_AL( context, 0 );
break;
case 0x20: /* Get VLM Call Address */
/* return nothing -> NetWare not installed */
break;
default:
INT_BARF( context, 0x2f );
break;
}
break;
case 0xb7: /* append */
SET_AL( context, 0 ); /* not installed */
break;
case 0xb8: /* network */
switch (LOBYTE(context->Eax))
{
case 0x00: /* Install check */
/* not installed */
break;
default:
INT_BARF( context, 0x2f );
break;
}
break;
case 0xbc:
if (AL_reg(context) == 0x00 && BX_reg(context) == 0x3f3f) {
/* MVSOUND.SYS - Install check: not installed */
} else {
INT_BARF( context, 0x2f );
}
break;
case 0xbd: /* some Novell network install check ??? */
SET_AX( context, 0xa5a5 ); /* pretend to have Novell IPX installed */
break;
case 0xbf: /* REDIRIFS.EXE */
switch (LOBYTE(context->Eax))
{
case 0x00: /* Install check */
/* not installed */
break;
default:
INT_BARF( context, 0x2f );
break;
}
break;
case 0xd2:
switch(LOBYTE(context->Eax))
{
case 0x01: /* Quarterdeck RPCI - QEMM/QRAM - PCL-838.EXE functions */
if(BX_reg(context) == 0x5145 && CX_reg(context) == 0x4D4D
&& DX_reg(context) == 0x3432)
TRACE("Check for QEMM v5.0+ (not installed)\n");
break;
default:
INT_BARF( context, 0x2f );
break;
}
break;
case 0xd7: /* Banyan Vines */
switch (LOBYTE(context->Eax))
{
case 0x01: /* Install check - Get Int Number */
/* not installed */
break;
default:
INT_BARF( context, 0x2f );
break;
}
break;
case 0xde:
switch(LOBYTE(context->Eax))
{
case 0x01: /* Quarterdeck QDPMI.SYS - DESQview */
if(BX_reg(context) == 0x4450 && CX_reg(context) == 0x4d49
&& DX_reg(context) == 0x8f4f)
TRACE("Check for QDPMI.SYS (not installed)\n");
break;
default:
INT_BARF( context, 0x2f );
break;
}
break;
case 0xfa: /* Watcom debugger check, returns 0x666 if installed */
break;
default:
INT_BARF( context, 0x2f );
break;
}
}
/**********************************************************************
* do_int2f_16
*/
static void do_int2f_16( CONTEXT *context )
{
DWORD addr;
switch(LOBYTE(context->Eax))
{
case 0x00: /* Windows enhanced mode installation check */
SET_AX( context, LOWORD(GetVersion16()) );
break;
case 0x0a: /* Get Windows version and type */
SET_AX( context, 0 );
SET_BX( context, (LOWORD(GetVersion16()) << 8) | (LOWORD(GetVersion16()) >> 8) );
SET_CX( context, 3 );
break;
case 0x0b: /* Identify Windows-aware TSRs */
/* we don't have any pre-Windows TSRs */
break;
case 0x11: /* Get Shell Parameters - (SHELL= in CONFIG.SYS) */
/* We can mock this up. But not today... */
FIXME("Get Shell Parameters\n");
break;
case 0x80: /* Release time-slice */
/* Linux sched_yield() still keeps burning CPU cycles
* if the current process is the only one in highest priority list
* (as Linux will immediately return to this process to waste
* more CPU cycles), so sched_yield() is essentially useless for us
* (poor API, if you ask me: its return code should indicate
* whether other processes did run in between, in order for us
* to be able to decide whether to do an additional Sleep() or not...)
* Thus we better unconditionally use a well-balanced Sleep()
* instead to really make sure the process calling int 0x2f/0x1680
* *doesn't* use 100% CPU...
*/
Sleep(55); /* just wait 55ms (one "timer tick") for now. */
SET_AL( context, 0 );
break;
case 0x81: /* Begin critical section. */
/* FIXME? */
break;
case 0x82: /* End critical section. */
/* FIXME? */
break;
case 0x83: /* Return Current Virtual Machine ID */
/* Virtual Machines are usually created/destroyed when Windows runs
* DOS programs. Since we never do, we are always in the System VM.
* According to Ralf Brown's Interrupt List, never return 0. But it
* seems to work okay (returning 0), just to be sure we return 1.
*/
SET_BX( context, 1 ); /* VM 1 is probably the System VM */
break;
case 0x84: /* Get device API entry point */
{
HMODULE16 mod = GetModuleHandle16("kernel");
addr = (DWORD)GetProcAddress16( mod, (LPCSTR)(VXD_BASE + BX_reg(context)) );
if (!addr) /* not supported */
ERR("Accessing unknown VxD %04x - Expect a failure now.\n", BX_reg(context) );
context->SegEs = SELECTOROF(addr);
SET_DI( context, OFFSETOF(addr) );
}
break;
case 0x86: /* DPMI detect mode */
SET_AX( context, 0 ); /* Running under DPMI */
break;
case 0x87: /* DPMI installation check */
{
SYSTEM_INFO si;
GetSystemInfo(&si);
SET_AX( context, 0x0000 ); /* DPMI Installed */
SET_BX( context, 0x0001 ); /* 32bits available */
SET_CL( context, si.wProcessorLevel );
SET_DX( context, 0x005a ); /* DPMI major/minor 0.90 */
SET_SI( context, 0 ); /* # of para. of DOS extended private data */
context->SegEs = 0; /* no DPMI switch */
SET_DI( context, 0 ); /* ES:DI is DPMI switch entry point */
break;
}
case 0x8a: /* DPMI get vendor-specific API entry point. */
/* The 1.0 specs say this should work with all 0.9 hosts. */
break;
default:
INT_BARF( context, 0x2f );
}
}
/* FIXME: this macro may have to be changed on architectures where <size> reads/writes
* must be <size> aligned
* <size> could be WORD, DWORD...
* in this case, we would need two macros, one for read, the other one for write
* Note: PTR_AT can be used as an l-value
*/
#define PTR_AT(_ptr, _ofs, _typ) (*((_typ*)(((char*)_ptr)+(_ofs))))
#define CDFRAMES_PERSEC 75
#define CDFRAMES_PERMIN (CDFRAMES_PERSEC * 60)
#define FRAME_OF_ADDR(a) ((a)[1] * CDFRAMES_PERMIN + (a)[2] * CDFRAMES_PERSEC + (a)[3])
#define FRAME_OF_TOC(toc, idx) FRAME_OF_ADDR((toc).TrackData[idx - (toc).FirstTrack].Address)
#define CTRL_OF_TOC(toc, idx) (((toc).TrackData[idx - (toc).FirstTrack].Control << 4) | \
(toc).TrackData[idx - (toc).FirstTrack].Adr)
static void MSCDEX_StoreMSF(DWORD frame, BYTE* val)
{
val[3] = 0; /* zero */
val[2] = frame / CDFRAMES_PERMIN; /* minutes */
val[1] = (frame / CDFRAMES_PERSEC) % 60; /* seconds */
val[0] = frame % CDFRAMES_PERSEC; /* frames */
}
static BOOL is_cdrom(int drive)
{
char root[] = "A:\\";
root[0] += drive;
return (GetDriveTypeA(root) == DRIVE_CDROM);
}
/***********************************************************************
* CDROM_FillHeap
*
* Initialize CDROM heap.
*
*/
static void CDROM_FillHeap( CDROM_HEAP *heap )
{
int drive, count;
/* Count the number of contiguous CDROM drives
*/
for (drive = count = 0; drive < 26; drive++) {
if (is_cdrom(drive)) {
while (is_cdrom(drive + count)) count++;
break;
}
}
TRACE("Installation check: %d cdroms, starting at %d\n", count, drive);
heap->hdr.drive = (drive < 26) ? drive : 0;
heap->hdr.units = count;
heap->hdr.reserved = 0;
}
/**********************************************************************
* CDROM_GetHeap
*
* Get pointer for CDROM heap (CDROM_HEAP).
* Creates and initializes heap on first call.
*/
static CDROM_HEAP *CDROM_GetHeap( void )
{
static CDROM_HEAP *heap_pointer = NULL;
if ( !heap_pointer )
{
WORD heap_selector = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, sizeof(CDROM_HEAP) );
heap_pointer = GlobalLock16( heap_selector );
heap_pointer->cdrom_selector = heap_selector;
CDROM_FillHeap( heap_pointer );
}
return heap_pointer;
}
static void MSCDEX_Request(BYTE *driver_request)
{
BYTE* io_stru;
BYTE Error = 255; /* No Error */
char devName[] = "\\\\.\\@:";
HANDLE h;
CDROM_TOC toc;
CDROM_SUB_Q_DATA_FORMAT fmt;
SUB_Q_CHANNEL_DATA data;
DWORD br;
BOOL present = TRUE;
/* FIXME
* the following tests are wrong because lots of functions don't require the
* tray to be closed with a CD inside
*/
TRACE("CDROM device driver -> command <%d>\n", driver_request[2]);
/* set status to 0 */
PTR_AT(driver_request, 3, WORD) = 0;
devName[4] = 'A' + CDROM_GetHeap()->hdr.drive + driver_request[1];
h = CreateFileA(devName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
if (h == INVALID_HANDLE_VALUE) {
WARN("Couldn't open cdrom handle\n");
driver_request[4] |= 0x80;
driver_request[3] = 1; /* unknown unit */
return;
}
fmt.Format = IOCTL_CDROM_CURRENT_POSITION;
if (!DeviceIoControl(h, IOCTL_CDROM_READ_TOC, NULL, 0, &toc, sizeof(toc), &br, NULL) ||
!DeviceIoControl(h, IOCTL_CDROM_READ_Q_CHANNEL, &fmt, sizeof(fmt),
&data, sizeof(data), &br, NULL)) {
if (GetLastError() == STATUS_NO_MEDIA_IN_DEVICE)
{
if (driver_request[2] != 6 && driver_request[2] != 15)
{
driver_request[4] |= 0x80;
driver_request[3] = 2; /* drive not ready */
CloseHandle(h);
return;
}
present = FALSE;
}
else
{
driver_request[4] |= 0x80;
driver_request[3] = 1; /* unknown unit */
CloseHandle(h);
return;
}
}
switch (driver_request[2]) {
case 3:
io_stru = MapSL( MAKESEGPTR(PTR_AT(driver_request, 16, WORD), PTR_AT(driver_request, 14, WORD)));
TRACE(" --> IOCTL INPUT <%d>\n", io_stru[0]);
switch (io_stru[0]) {
#if 0
case 0: /* Get device Header */
{
static LPSTR ptr = 0;
if (ptr == 0) {
ptr = SEGPTR_ALLOC(22);
PTR_AT(ptr, 0, DWORD) = ~1; /* Next Device Driver */
PTR_AT(ptr, 4, WORD) = 0xC800; /* Device attributes */
PTR_AT(ptr, 6, WORD) = 0x1234; /* Pointer to device strategy routine: FIXME */
PTR_AT(ptr, 8, WORD) = 0x3142; /* Pointer to device interrupt routine: FIXME */
PTR_AT(ptr, 10, char) = 'W'; /* 8-byte character device name field */
PTR_AT(ptr, 11, char) = 'I';
PTR_AT(ptr, 12, char) = 'N';
PTR_AT(ptr, 13, char) = 'E';
PTR_AT(ptr, 14, char) = '_';
PTR_AT(ptr, 15, char) = 'C';
PTR_AT(ptr, 16, char) = 'D';
PTR_AT(ptr, 17, char) = '_';
PTR_AT(ptr, 18, WORD) = 0; /* Reserved (must be zero) */
PTR_AT(ptr, 20, BYTE) = 0; /* Drive letter (must be zero) */
PTR_AT(ptr, 21, BYTE) = 1; /* Number of units supported (one or more) FIXME*/
}
PTR_AT(io_stru, DWORD, 0) = SEGPTR_GET(ptr);
}
break;
#endif
case 1: /* location of head */
switch (io_stru[1]) {
case 0:
PTR_AT(io_stru, 2, DWORD) =
FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress);
break;
case 1:
MSCDEX_StoreMSF(FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress),
io_stru + 2);
break;
default:
ERR("CD-ROM driver: unsupported addressing mode !!\n");
Error = 0x0c;
}
TRACE(" ----> HEAD LOCATION <%ld>\n", PTR_AT(io_stru, 2, DWORD));
break;
case 4: /* Audio channel info */
io_stru[1] = 0;
io_stru[2] = 0xff;
io_stru[3] = 1;
io_stru[4] = 0xff;
io_stru[5] = 2;
io_stru[6] = 0;
io_stru[7] = 3;
io_stru[8] = 0;
TRACE(" ----> AUDIO CHANNEL INFO\n");
break;
case 6: /* device status */
PTR_AT(io_stru, 1, DWORD) = 0x00000290;
/* 290 =>
* 1 Supports HSG and Red Book addressing modes
* 0 Supports audio channel manipulation
*
* 1 Supports prefetching requests
* 0 Reserved
* 0 No interleaving
* 1 Data read and plays audio/video tracks
*
* 0 Read only
* 0 Supports only cooked reading
* 0 Door locked
* 0 see below (Door closed/opened)
*/
if (!present) PTR_AT(io_stru, 1, DWORD) |= 1;
TRACE(" ----> DEVICE STATUS <0x%08lx>\n", PTR_AT(io_stru, 1, DWORD));
break;
case 8: /* Volume size */
PTR_AT(io_stru, 1, DWORD) = FRAME_OF_TOC(toc, toc.LastTrack + 1) -
FRAME_OF_TOC(toc, toc.FirstTrack) - 1;
TRACE(" ----> VOLUME SIZE <%ld>\n", PTR_AT(io_stru, 1, DWORD));
break;
case 9: /* media changed ? */
/* answers don't know... -1/1 for yes/no would be better */
io_stru[1] = 0; /* FIXME? 1? */
TRACE(" ----> MEDIA CHANGED <%d>\n", io_stru[1]);
break;
case 10: /* audio disk info */
io_stru[1] = toc.FirstTrack; /* starting track of the disc */
io_stru[2] = toc.LastTrack; /* ending track */
MSCDEX_StoreMSF(FRAME_OF_TOC(toc, toc.LastTrack + 1) -
FRAME_OF_TOC(toc, toc.FirstTrack) - 1, io_stru + 3);
TRACE(" ----> AUDIO DISK INFO <%d-%d/%08lx>\n",
io_stru[1], io_stru[2], PTR_AT(io_stru, 3, DWORD));
break;
case 11: /* audio track info */
if (io_stru[1] >= toc.FirstTrack && io_stru[1] <= toc.LastTrack) {
MSCDEX_StoreMSF(FRAME_OF_TOC(toc, io_stru[1]), io_stru + 2);
/* starting point if the track */
io_stru[6] = CTRL_OF_TOC(toc, io_stru[1]);
} else {
PTR_AT(io_stru, 2, DWORD) = 0;
io_stru[6] = 0;
}
TRACE(" ----> AUDIO TRACK INFO[%d] = [%08lx:%d]\n",
io_stru[1], PTR_AT(io_stru, 2, DWORD), io_stru[6]);
break;
case 12: /* get Q-Channel info */
io_stru[1] = CTRL_OF_TOC(toc, data.CurrentPosition.TrackNumber);
io_stru[2] = data.CurrentPosition.TrackNumber;
io_stru[3] = 0; /* FIXME ?? */
/* why the heck did MS use another format for 0MSF information... sigh */
{
BYTE bTmp[4];
MSCDEX_StoreMSF(FRAME_OF_ADDR(data.CurrentPosition.TrackRelativeAddress), bTmp);
io_stru[ 4] = bTmp[2];
io_stru[ 5] = bTmp[1];
io_stru[ 6] = bTmp[0];
io_stru[ 7] = 0;
MSCDEX_StoreMSF(FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress), bTmp);
io_stru[ 8] = bTmp[2];
io_stru[ 9] = bTmp[1];
io_stru[10] = bTmp[0];
io_stru[11] = 0;
}
TRACE("Q-Channel info: Ctrl/adr=%02x TNO=%02x X=%02x rtt=%02x:%02x:%02x rtd=%02x:%02x:%02x (cf=%08x, tp=%08x)\n",
io_stru[ 1], io_stru[ 2], io_stru[ 3],
io_stru[ 4], io_stru[ 5], io_stru[ 6],
io_stru[ 8], io_stru[ 9], io_stru[10],
FRAME_OF_ADDR(data.CurrentPosition.AbsoluteAddress),
FRAME_OF_TOC(toc, data.CurrentPosition.TrackNumber));
break;
case 15: /* Audio status info */
/* !!!! FIXME FIXME FIXME !! */
PTR_AT(io_stru, 1, WORD) = 2 | ((data.CurrentPosition.Header.AudioStatus == AUDIO_STATUS_PAUSED) ? 1 : 0);
if (!present) {
PTR_AT(io_stru, 3, DWORD) = 0;
PTR_AT(io_stru, 7, DWORD) = 0;
} else {
PTR_AT(io_stru, 3, DWORD) = FRAME_OF_TOC(toc, toc.FirstTrack);
PTR_AT(io_stru, 7, DWORD) = FRAME_OF_TOC(toc, toc.LastTrack + 1);
}
TRACE("Audio status info: status=%04x startLoc=%ld endLoc=%ld\n",
PTR_AT(io_stru, 1, WORD), PTR_AT(io_stru, 3, DWORD), PTR_AT(io_stru, 7, DWORD));
break;
default:
FIXME("IOCTL INPUT: Unimplemented <%d>!!\n", io_stru[0]);
Error = 0x0c;
break;
}
break;
case 12:
io_stru = MapSL( MAKESEGPTR(PTR_AT(driver_request, 16, WORD), PTR_AT(driver_request, 14, WORD)));
TRACE(" --> IOCTL OUTPUT <%d>\n", io_stru[0]);
switch (io_stru[0]) {
case 0: /* eject */
DeviceIoControl(h, IOCTL_STORAGE_EJECT_MEDIA, NULL, 0, NULL, 0, &br, NULL);
TRACE(" ----> EJECT\n");
break;
case 2: /* reset drive */
DeviceIoControl(h, IOCTL_STORAGE_RESET_DEVICE, NULL, 0, NULL, 0, &br, NULL);
TRACE(" ----> RESET\n");
break;
case 3: /* Audio Channel Control */
FIXME(" ----> AUDIO CHANNEL CONTROL (NIY)\n");
break;
case 5: /* close tray */
DeviceIoControl(h, IOCTL_STORAGE_LOAD_MEDIA, NULL, 0, NULL, 0, &br, NULL);
TRACE(" ----> CLOSE TRAY\n");
break;
default:
FIXME(" IOCTL OUTPUT: Unimplemented <%d>!!\n", io_stru[0]);
Error = 0x0c;
break;
}
break;
case 128: /* read long */
{
LPVOID dst = MapSL(MAKESEGPTR(PTR_AT(driver_request, 16, WORD),
PTR_AT(driver_request, 14, WORD)));
DWORD at = PTR_AT(driver_request, 20, DWORD);
WORD num = PTR_AT(driver_request, 18, WORD);
RAW_READ_INFO rri;
switch (driver_request[13]) {
case 1: /* Red book addressing mode = 0:m:s:f */
/* FIXME : frame <=> msf conversion routines could be shared
* between mscdex and mcicda
*/
at = LOBYTE(HIWORD(at)) * CDFRAMES_PERMIN +
HIBYTE(LOWORD(at)) * CDFRAMES_PERSEC +
LOBYTE(LOWORD(at));
/* fall through */
case 0: /* HSG addressing mode */
switch (PTR_AT(driver_request, 24, BYTE))
{
case 0: /* cooked */
ReadFile(h, dst, num * 2048, &br, NULL);
break;
case 1:
/* FIXME: computation is wrong */
rri.DiskOffset.u.HighPart = 0;
rri.DiskOffset.u.LowPart = at << 11;
rri.TrackMode = YellowMode2;
rri.SectorCount = num;
DeviceIoControl(h, IOCTL_CDROM_RAW_READ, &rri, sizeof(rri),
dst, num * 2352, &br, NULL);
break;
default:
ERR("Unsupported read mode !!\n");
Error = 0x0c;
break;
}
break;
default:
ERR("Unsupported address mode !!\n");
Error = 0x0c;
break;
}
}
break;
case 131: /* seek */
{
DWORD at;
CDROM_SEEK_AUDIO_MSF seek;
at = PTR_AT(driver_request, 20, DWORD);
TRACE(" --> SEEK AUDIO mode :<0x%02X>, [%ld]\n", driver_request[13], at);
switch (driver_request[13]) {
case 1: /* Red book addressing mode = 0:m:s:f */
/* FIXME : frame <=> msf conversion routines could be shared
* between mscdex and mcicda
*/
at = LOBYTE(HIWORD(at)) * CDFRAMES_PERMIN +
HIBYTE(LOWORD(at)) * CDFRAMES_PERSEC +
LOBYTE(LOWORD(at));
/* fall through */
case 0: /* HSG addressing mode */
seek.M = at / CDFRAMES_PERMIN;
seek.S = (at / CDFRAMES_PERSEC) % 60;
seek.F = at % CDFRAMES_PERSEC;
DeviceIoControl(h, IOCTL_CDROM_SEEK_AUDIO_MSF, &seek, sizeof(seek),
NULL, 0, &br, NULL);
break;
default:
ERR("Unsupported address mode !!\n");
Error = 0x0c;
break;
}
}
break;
case 132: /* play */
{
DWORD beg, end;
CDROM_PLAY_AUDIO_MSF play;
beg = end = PTR_AT(driver_request, 14, DWORD);
end += PTR_AT(driver_request, 18, DWORD);
TRACE(" --> PLAY AUDIO mode :<0x%02X>, [%ld-%ld]\n", driver_request[13], beg, end);
switch (driver_request[13]) {
case 1:
/* Red book addressing mode = 0:m:s:f */
/* FIXME : frame <=> msf conversion routines could be shared
* between mscdex and mcicda
*/
beg = LOBYTE(LOWORD(beg)) * CDFRAMES_PERMIN +
HIBYTE(LOWORD(beg)) * CDFRAMES_PERSEC +
LOBYTE(HIWORD(beg));
end = LOBYTE(LOWORD(end)) * CDFRAMES_PERMIN +
HIBYTE(LOWORD(end)) * CDFRAMES_PERSEC +
LOBYTE(HIWORD(end));
/* fall through */
case 0: /* HSG addressing mode */
play.StartingM = beg / CDFRAMES_PERMIN;
play.StartingS = (beg / CDFRAMES_PERSEC) % 60;
play.StartingF = beg % CDFRAMES_PERSEC;
play.EndingM = end / CDFRAMES_PERMIN;
play.EndingS = (end / CDFRAMES_PERSEC) % 60;
play.EndingF = end % CDFRAMES_PERSEC;
DeviceIoControl(h, IOCTL_CDROM_PLAY_AUDIO_MSF, &play, sizeof(play),
NULL, 0, &br, NULL);
break;
default:
ERR("Unsupported address mode !!\n");
Error = 0x0c;
break;
}
}
break;
case 133:
if (data.CurrentPosition.Header.AudioStatus == AUDIO_STATUS_IN_PROGRESS) {
DeviceIoControl(h, IOCTL_CDROM_PAUSE_AUDIO, NULL, 0, NULL, 0, &br, NULL);
TRACE(" --> STOP AUDIO (Paused)\n");
} else {
DeviceIoControl(h, IOCTL_CDROM_STOP_AUDIO, NULL, 0, NULL, 0, &br, NULL);
TRACE(" --> STOP AUDIO (Stopped)\n");
}
break;
case 136:
TRACE(" --> RESUME AUDIO\n");
DeviceIoControl(h, IOCTL_CDROM_PAUSE_AUDIO, NULL, 0, NULL, 0, &br, NULL);
break;
default:
FIXME(" ioctl unimplemented <%d>\n", driver_request[2]);
Error = 0x0c;
}
/* setting error codes if any */
if (Error < 255) {
driver_request[4] |= 0x80;
driver_request[3] = Error;
}
CloseHandle(h);
/* setting status bits
* 3 == playing && done
* 1 == done
*/
driver_request[4] |=
(data.CurrentPosition.Header.AudioStatus == AUDIO_STATUS_IN_PROGRESS) ? 3 : 1;
}
static void MSCDEX_Handler(CONTEXT* context)
{
int drive, count;
char* p;
switch (LOBYTE(context->Eax)) {
case 0x00: /* Installation check */
/* Count the number of contiguous CDROM drives
*/
for (drive = count = 0; drive < 26; drive++) {
if (is_cdrom(drive)) {
while (is_cdrom(drive + count)) count++;
break;
}
}
TRACE("Installation check: %d cdroms, starting at %d\n", count, drive);
SET_BX( context, count );
SET_CX( context, (drive < 26) ? drive : 0 );
break;
case 0x01: /* get drive device list */
{
CDROM_HEAP* cdrom_heap = CDROM_GetHeap();
CDROM_DEVICE_HEADER* dev = &cdrom_heap->hdr;
SEGPTR ptr_dev = MAKESEGPTR( cdrom_heap->cdrom_selector, FIELD_OFFSET(CDROM_HEAP, hdr) );
p = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
for (drive = 0; drive < dev->units; drive++) {
*p = drive; /* subunit */
++p;
*(DWORD*)p = ptr_dev;
p += sizeof(DWORD);
}
TRACE("Get drive device list\n");
}
break;
case 0x0B: /* drive check */
SET_AX( context, is_cdrom(CX_reg(context)) );
SET_BX( context, 0xADAD );
break;
case 0x0C: /* get version */
SET_BX( context, 0x020a );
TRACE("Version number => %04x\n", BX_reg(context));
break;
case 0x0D: /* get drive letters */
p = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
memset(p, 0, 26);
for (drive = 0; drive < 26; drive++) {
if (is_cdrom(drive)) *p++ = drive;
}
TRACE("Get drive letters\n");
break;
case 0x10: /* direct driver access */
{
BYTE* driver_request;
CDROM_HEAP* cdrom_heap = CDROM_GetHeap();
if (!is_cdrom(CX_reg(context))) {
WARN("Request made doesn't match a CD ROM drive (%d)\n", CX_reg(context));
SET_CFLAG( context );
SET_AX( context, 0x000f ); /* invalid drive */
return;
}
driver_request = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
if (!driver_request) {
/* FIXME - to be deleted ?? */
ERR("ES:BX==0 ! SEGFAULT ?\n");
ERR("-->BX=0x%04x, ES=0x%04lx, DS=0x%04lx, CX=0x%04x\n",
BX_reg(context), context->SegEs, context->SegDs, CX_reg(context));
driver_request[4] |= 0x80;
driver_request[3] = 5; /* bad request length */
return;
}
driver_request[1] = CX_reg(context) - cdrom_heap->hdr.drive;
MSCDEX_Request(driver_request);
}
break;
default:
FIXME("Unimplemented MSCDEX function 0x%02X.\n", LOBYTE(context->Eax));
break;
}
}
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