/* -*- tab-width: 8; c-basic-offset: 4 -*- */ /* * DOS interrupt 2fh handler * * Cdrom - device driver emulation - Audio features. * Copyright (c) 1998 Petr Tomasek * 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 #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 reads/writes * must be aligned * 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 <%d>\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%08x>\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 <%d>\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/%08x>\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] = [%08x:%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=%d endLoc=%d\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>, [%d]\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>, [%d-%d]\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%04x, DS=0x%04x, 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; } }