///////////////////////////////////////////////////////////////////////// // $Id: cdrom.cc,v 1.48 2002-10-24 21:07:10 bdenney Exp $ ///////////////////////////////////////////////////////////////////////// // // Copyright (C) 2002 MandrakeSoft S.A. // // MandrakeSoft S.A. // 43, rue d'Aboukir // 75002 Paris - France // http://www.linux-mandrake.com/ // http://www.mandrakesoft.com/ // // 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 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // These are the low-level CDROM functions which are called // from 'harddrv.cc'. They effect the OS specific functionality // needed by the CDROM emulation in 'harddrv.cc'. Mostly, just // ioctl() calls and such. Should be fairly easy to add support // for your OS if it is not supported yet. // Define BX_PLUGGABLE in files that can be compiled into plugins. For // platforms that require a special tag on exported symbols, BX_PLUGGABLE // is used to know when we are exporting symbols and when we are importing. #define BX_PLUGGABLE #include "bochs.h" #define LOG_THIS /* no SMF tricks here, not needed */ extern "C" { #include } #ifdef __linux__ extern "C" { #include #include // I use the framesize in non OS specific code too #define BX_CD_FRAMESIZE CD_FRAMESIZE } #endif #if defined(__GNU__) || (defined(__CYGWIN32__) && !defined(WIN32)) extern "C" { #include #define BX_CD_FRAMESIZE 2048 #define CD_FRAMESIZE 2048 } #endif #ifdef __sun extern "C" { #include #include #include #include #define BX_CD_FRAMESIZE CDROM_BLK_2048 } #endif /* __sun */ #ifdef __BEOS__ #include "cdrom_beos.h" #define BX_CD_FRAMESIZE 2048 #endif #if (defined (__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__)) // OpenBSD pre version 2.7 may require extern "C" { } structure around // all the includes, because the i386 sys/disklabel.h contains code which // c++ considers invalid. #include #include #include #include #include #include // XXX #define BX_CD_FRAMESIZE 2048 #define CD_FRAMESIZE 2048 #endif #ifdef WIN32 // windows.h included by bochs.h #include #include "aspi-win32.h" #include "scsidefs.h" DWORD (*GetASPI32SupportInfo)(void); DWORD (*SendASPI32Command)(LPSRB); BOOL (*GetASPI32Buffer)(PASPI32BUFF); BOOL (*FreeASPI32Buffer)(PASPI32BUFF); BOOL (*TranslateASPI32Address)(PDWORD,PDWORD); DWORD (*GetASPI32DLLVersion)(void); static BOOL bUseASPI = FALSE; static BOOL bHaveDev; static UINT cdromCount = 0; static HINSTANCE hASPI = NULL; #define BX_CD_FRAMESIZE 2048 #define CD_FRAMESIZE 2048 #endif #include #ifdef WIN32 bool ReadCDSector(unsigned int hid, unsigned int tid, unsigned int lun, unsigned long frame, unsigned char *buf, int bufsize) { HANDLE hEventSRB; SRB_ExecSCSICmd srb; DWORD dwStatus; hEventSRB = CreateEvent(NULL, TRUE, FALSE, NULL); memset(&srb,0,sizeof(SRB_ExecSCSICmd)); srb.SRB_Cmd = SC_EXEC_SCSI_CMD; srb.SRB_HaId = hid; srb.SRB_Target = tid; srb.SRB_Lun = lun; srb.SRB_Flags = SRB_DIR_IN | SRB_EVENT_NOTIFY; srb.SRB_SenseLen = SENSE_LEN; srb.SRB_PostProc = hEventSRB; srb.SRB_BufPointer = buf; srb.SRB_BufLen = bufsize; srb.SRB_CDBLen = 10; srb.CDBByte[0] = SCSI_READ10; srb.CDBByte[2] = (unsigned char) (frame>>24); srb.CDBByte[3] = (unsigned char) (frame>>16); srb.CDBByte[4] = (unsigned char) (frame>>8); srb.CDBByte[5] = (unsigned char) (frame); srb.CDBByte[7] = 0; srb.CDBByte[8] = 1; /* read 1 frames */ ResetEvent(hEventSRB); dwStatus = SendASPI32Command((SRB *)&srb); if(dwStatus == SS_PENDING) { WaitForSingleObject(hEventSRB, 100000); } CloseHandle(hEventSRB); return (srb.SRB_TargStat == STATUS_GOOD); } int GetCDCapacity(unsigned int hid, unsigned int tid, unsigned int lun) { HANDLE hEventSRB; SRB_ExecSCSICmd srb; DWORD dwStatus; unsigned char buf[8]; hEventSRB = CreateEvent(NULL, TRUE, FALSE, NULL); memset(&buf, 0, sizeof(buf)); memset(&srb,0,sizeof(SRB_ExecSCSICmd)); srb.SRB_Cmd = SC_EXEC_SCSI_CMD; srb.SRB_HaId = hid; srb.SRB_Target = tid; srb.SRB_Lun = lun; srb.SRB_Flags = SRB_DIR_IN | SRB_EVENT_NOTIFY; srb.SRB_SenseLen = SENSE_LEN; srb.SRB_PostProc = hEventSRB; srb.SRB_BufPointer = (unsigned char *)buf; srb.SRB_BufLen = 8; srb.SRB_CDBLen = 10; srb.CDBByte[0] = SCSI_READCDCAP; srb.CDBByte[2] = 0; srb.CDBByte[3] = 0; srb.CDBByte[4] = 0; srb.CDBByte[5] = 0; srb.CDBByte[8] = 0; ResetEvent(hEventSRB); dwStatus = SendASPI32Command((SRB *)&srb); if(dwStatus == SS_PENDING) { WaitForSingleObject(hEventSRB, 100000); } CloseHandle(hEventSRB); return ((buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + buf[3]) * ((buf[4] << 24) + (buf[5] << 16) + (buf[6] << 8) + buf[7]); } #endif cdrom_interface::cdrom_interface(char *dev) { put("CD"); settype(CDLOG); fd = -1; // File descriptor not yet allocated if ( dev == NULL ) path = NULL; else { path = strdup(dev); } using_file=0; } void cdrom_interface::init(void) { BX_DEBUG(("Init $Id: cdrom.cc,v 1.48 2002-10-24 21:07:10 bdenney Exp $")); BX_INFO(("file = '%s'",path)); } cdrom_interface::~cdrom_interface(void) { if (fd >= 0) close(fd); if (path) free(path); BX_DEBUG(("Exit")); } bool cdrom_interface::insert_cdrom(char *dev) { unsigned char buffer[BX_CD_FRAMESIZE]; ssize_t ret; // Load CD-ROM. Returns false if CD is not ready. if (dev != NULL) path = strdup(dev); BX_INFO (("load cdrom with path=%s", path)); #ifdef WIN32 char drive[256]; OSVERSIONINFO osi; if ( (path[1] == ':') && (strlen(path) == 2) ) { osi.dwOSVersionInfoSize = sizeof(osi); GetVersionEx(&osi); if(osi.dwPlatformId == VER_PLATFORM_WIN32_NT) { // Use direct device access under windows NT/2k // With all the backslashes it's hard to see, but to open D: drive // the name would be: \\.\d: sprintf(drive, "\\\\.\\%s", path); using_file = 0; BX_INFO (("Using direct access for cdrom.")); // This trick only works for Win2k and WinNT, so warn the user of that. } else { BX_INFO(("Using ASPI for cdrom. Drive letters are unused yet.")); bUseASPI = TRUE; } } else { strcpy(drive,path); using_file = 1; bUseASPI = FALSE; BX_INFO (("Opening image file as a cd")); } if(bUseASPI) { DWORD d; int cdr, cnt, max; int i, j, k; SRB_HAInquiry sh; SRB_GDEVBlock sd; if (!hASPI) { hASPI = LoadLibrary("WNASPI32.DLL"); } if(hASPI) { SendASPI32Command = (DWORD(*)(LPSRB))GetProcAddress( hASPI, "SendASPI32Command" ); GetASPI32DLLVersion = (DWORD(*)(void))GetProcAddress( hASPI, "GetASPI32DLLVersion" ); GetASPI32SupportInfo = (DWORD(*)(void))GetProcAddress( hASPI, "GetASPI32SupportInfo" ); // BX_INFO(("Using first CDROM. Please upgrade your ASPI drivers to version 4.01 or later if you wish to specify a cdrom driver.")); cdr = 0; bHaveDev = FALSE; d = GetASPI32SupportInfo(); cnt = LOBYTE(LOWORD(d)); for(i = 0; i < cnt; i++) { memset(&sh, 0, sizeof(sh)); sh.SRB_Cmd = SC_HA_INQUIRY; sh.SRB_HaId = i; SendASPI32Command((LPSRB)&sh); if(sh.SRB_Status != SS_COMP) continue; max = (int)sh.HA_Unique[3]; for(j = 0; j < max; j++) { for(k = 0; k < 8; k++) { memset(&sd, 0, sizeof(sd)); sd.SRB_Cmd = SC_GET_DEV_TYPE; sd.SRB_HaId = i; sd.SRB_Target = j; sd.SRB_Lun = k; SendASPI32Command((LPSRB)&sd); if(sd.SRB_Status == SS_COMP) { if(sd.SRB_DeviceType == DTYPE_CDROM) { cdr++; if(cdr > cdromCount) { hid = i; tid = j; lun = k; cdromCount++; bHaveDev = TRUE; } } } if(bHaveDev) break; } if(bHaveDev) break; } } } else { BX_PANIC(("Could not load ASPI drivers, so cdrom access will fail")); } fd=1; } else { BX_INFO(("Using direct access for CDROM")); hFile=CreateFile((char *)&drive, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS, NULL); if (hFile !=(void *)0xFFFFFFFF) fd=1; } #else // all platforms except win32 fd = open(path, O_RDONLY); #endif if (fd < 0) { BX_ERROR(( "open cd failed for %s: %s", path, strerror(errno))); return(false); } // I just see if I can read a sector to verify that a // CD is in the drive and readable. #ifdef WIN32 if(bUseASPI) { return ReadCDSector(hid, tid, lun, 0, buffer, BX_CD_FRAMESIZE); } else { ReadFile(hFile, (void *) buffer, BX_CD_FRAMESIZE, (unsigned long *) &ret, NULL); if (ret < 0) { CloseHandle(hFile); fd = -1; BX_DEBUG(( "insert_cdrom: read returns error." )); return(false); } } #else // do fstat to determine if it's a file or a device, then set using_file. struct stat stat_buf; ret = fstat (fd, &stat_buf); if (ret) { BX_PANIC (("fstat cdrom file returned error: %s", strerror (errno))); } if (S_ISREG (stat_buf.st_mode)) { using_file = 1; BX_INFO (("Opening image file %s as a cd.", path)); } else { using_file = 0; BX_INFO (("Using direct access for cdrom.")); } ret = read(fd, &buffer, BX_CD_FRAMESIZE); if (ret < 0) { close(fd); fd = -1; BX_DEBUG(( "insert_cdrom: read returns error: %s", strerror (errno) )); return(false); } #endif return(true); } void cdrom_interface::eject_cdrom() { // Logically eject the CD. I suppose we could stick in // some ioctl() calls to really eject the CD as well. if (fd >= 0) { #if (defined(__OpenBSD__) || defined(__FreeBSD__)) (void) ioctl (fd, CDIOCALLOW); if (ioctl (fd, CDIOCEJECT) < 0) BX_DEBUG(( "eject_cdrom: eject returns error." )); #endif #ifdef WIN32 if (using_file == 0) { if(bUseASPI) { } else { DWORD lpBytesReturned; DeviceIoControl(hFile, IOCTL_STORAGE_EJECT_MEDIA, NULL, 0, NULL, 0, &lpBytesReturned, NULL); } } #endif #if __linux__ if (!using_file) ioctl (fd, CDROMEJECT, NULL); #endif close(fd); fd = -1; } } bool cdrom_interface::read_toc(uint8* buf, int* length, bool msf, int start_track) { // Read CD TOC. Returns false if start track is out of bounds. if (fd < 0) { BX_PANIC(("cdrom: read_toc: file not open.")); } #ifdef WIN32 if (1) { // This is a hack and works okay if there's one rom track only #else if (using_file) { #endif // From atapi specs : start track can be 0-63, AA if ((start_track > 1) && (start_track != 0xaa)) return false; buf[2] = 1; buf[3] = 1; int len = 4; if (start_track <= 1) { buf[len++] = 0; // Reserved buf[len++] = 0x14; // ADR, control buf[len++] = 1; // Track number buf[len++] = 0; // Reserved // Start address if (msf) { buf[len++] = 0; // reserved buf[len++] = 0; // minute buf[len++] = 2; // second buf[len++] = 0; // frame } else { buf[len++] = 0; buf[len++] = 0; buf[len++] = 0; buf[len++] = 0; // logical sector 0 } } // Lead out track buf[len++] = 0; // Reserved buf[len++] = 0x16; // ADR, control buf[len++] = 0xaa; // Track number buf[len++] = 0; // Reserved uint32 blocks = capacity(); // Start address if (msf) { buf[len++] = 0; // reserved buf[len++] = (uint8)(((blocks + 150) / 75) / 60); // minute buf[len++] = (uint8)(((blocks + 150) / 75) % 60); // second buf[len++] = (uint8)((blocks + 150) % 75); // frame; } else { buf[len++] = (blocks >> 24) & 0xff; buf[len++] = (blocks >> 16) & 0xff; buf[len++] = (blocks >> 8) & 0xff; buf[len++] = (blocks >> 0) & 0xff; } buf[0] = ((len-2) >> 8) & 0xff; buf[1] = (len-2) & 0xff; *length = len; return true; } // all these implementations below are the platform-dependent code required // to read the TOC from a physical cdrom. #ifdef WIN32 { /* #define IOCTL_CDROM_BASE FILE_DEVICE_CD_ROM #define IOCTL_CDROM_READ_TOC CTL_CODE(IOCTL_CDROM_BASE, 0x0000, METHOD_BUFFERED, FILE_READ_ACCESS) unsigned long iBytesReturned; DeviceIoControl(hFile, IOCTL_CDROM_READ_TOC, NULL, 0, NULL, 0, &iBytesReturned, NULL); */ BX_ERROR (("WARNING: read_toc is not implemented, just returning length=1")); *length = 1; return true; } #elif __linux__ || defined(__sun) { struct cdrom_tochdr tochdr; if (ioctl(fd, CDROMREADTOCHDR, &tochdr)) BX_PANIC(("cdrom: read_toc: READTOCHDR failed.")); if ((start_track > tochdr.cdth_trk1) && (start_track != 0xaa)) return false; buf[2] = tochdr.cdth_trk0; buf[3] = tochdr.cdth_trk1; if (start_track < tochdr.cdth_trk0) start_track = tochdr.cdth_trk0; int len = 4; for (int i = start_track; i <= tochdr.cdth_trk1; i++) { struct cdrom_tocentry tocentry; tocentry.cdte_format = (msf) ? CDROM_MSF : CDROM_LBA; tocentry.cdte_track = i; if (ioctl(fd, CDROMREADTOCENTRY, &tocentry)) BX_PANIC(("cdrom: read_toc: READTOCENTRY failed.")); buf[len++] = 0; // Reserved buf[len++] = (tocentry.cdte_adr << 4) | tocentry.cdte_ctrl ; // ADR, control buf[len++] = i; // Track number buf[len++] = 0; // Reserved // Start address if (msf) { buf[len++] = 0; // reserved buf[len++] = tocentry.cdte_addr.msf.minute; buf[len++] = tocentry.cdte_addr.msf.second; buf[len++] = tocentry.cdte_addr.msf.frame; } else { buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 24) & 0xff; buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 16) & 0xff; buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 8) & 0xff; buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 0) & 0xff; } } // Lead out track struct cdrom_tocentry tocentry; tocentry.cdte_format = (msf) ? CDROM_MSF : CDROM_LBA; #ifdef CDROM_LEADOUT tocentry.cdte_track = CDROM_LEADOUT; #else tocentry.cdte_track = 0xaa; #endif if (ioctl(fd, CDROMREADTOCENTRY, &tocentry)) BX_PANIC(("cdrom: read_toc: READTOCENTRY lead-out failed.")); buf[len++] = 0; // Reserved buf[len++] = (tocentry.cdte_adr << 4) | tocentry.cdte_ctrl ; // ADR, control buf[len++] = 0xaa; // Track number buf[len++] = 0; // Reserved // Start address if (msf) { buf[len++] = 0; // reserved buf[len++] = tocentry.cdte_addr.msf.minute; buf[len++] = tocentry.cdte_addr.msf.second; buf[len++] = tocentry.cdte_addr.msf.frame; } else { buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 24) & 0xff; buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 16) & 0xff; buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 8) & 0xff; buf[len++] = (((unsigned)tocentry.cdte_addr.lba) >> 0) & 0xff; } buf[0] = ((len-2) >> 8) & 0xff; buf[1] = (len-2) & 0xff; *length = len; return true; } #elif (defined(__NetBSD__) || defined(__OpenBSD__) || defined(__FreeBSD__)) { struct ioc_toc_header h; struct ioc_read_toc_entry t; if (ioctl (fd, CDIOREADTOCHEADER, &h) < 0) BX_PANIC(("cdrom: read_toc: READTOCHDR failed.")); if ((start_track > h.ending_track) && (start_track != 0xaa)) return false; buf[2] = h.starting_track; buf[3] = h.ending_track; if (start_track < h.starting_track) start_track = h.starting_track; int len = 4; for (int i = start_track; i <= h.ending_track; i++) { struct cd_toc_entry tocentry; t.address_format = (msf) ? CD_MSF_FORMAT : CD_LBA_FORMAT; t.starting_track = i; t.data_len = sizeof(tocentry); t.data = &tocentry; if (ioctl (fd, CDIOREADTOCENTRYS, &tocentry) < 0) BX_PANIC(("cdrom: read_toc: READTOCENTRY failed.")); buf[len++] = 0; // Reserved buf[len++] = (tocentry.addr_type << 4) | tocentry.control ; // ADR, control buf[len++] = i; // Track number buf[len++] = 0; // Reserved // Start address if (msf) { buf[len++] = 0; // reserved buf[len++] = tocentry.addr.msf.minute; buf[len++] = tocentry.addr.msf.second; buf[len++] = tocentry.addr.msf.frame; } else { buf[len++] = (((unsigned)tocentry.addr.lba) >> 24) & 0xff; buf[len++] = (((unsigned)tocentry.addr.lba) >> 16) & 0xff; buf[len++] = (((unsigned)tocentry.addr.lba) >> 8) & 0xff; buf[len++] = (((unsigned)tocentry.addr.lba) >> 0) & 0xff; } } // Lead out track struct cd_toc_entry tocentry; t.address_format = (msf) ? CD_MSF_FORMAT : CD_LBA_FORMAT; t.starting_track = 0xaa; t.data_len = sizeof(tocentry); t.data = &tocentry; if (ioctl (fd, CDIOREADTOCENTRYS, &tocentry) < 0) BX_PANIC(("cdrom: read_toc: READTOCENTRY lead-out failed.")); buf[len++] = 0; // Reserved buf[len++] = (tocentry.addr_type << 4) | tocentry.control ; // ADR, control buf[len++] = 0xaa; // Track number buf[len++] = 0; // Reserved // Start address if (msf) { buf[len++] = 0; // reserved buf[len++] = tocentry.addr.msf.minute; buf[len++] = tocentry.addr.msf.second; buf[len++] = tocentry.addr.msf.frame; } else { buf[len++] = (((unsigned)tocentry.addr.lba) >> 24) & 0xff; buf[len++] = (((unsigned)tocentry.addr.lba) >> 16) & 0xff; buf[len++] = (((unsigned)tocentry.addr.lba) >> 8) & 0xff; buf[len++] = (((unsigned)tocentry.addr.lba) >> 0) & 0xff; } buf[0] = ((len-2) >> 8) & 0xff; buf[1] = (len-2) & 0xff; *length = len; return true; } #else BX_INFO(("read_toc: your OS is not supported yet.")); return(false); // OS not supported yet, return false always. #endif } uint32 cdrom_interface::capacity() { // Return CD-ROM capacity. I believe you want to return // the number of blocks of capacity the actual media has. #if !defined WIN32 // win32 has its own way of doing this if (using_file) { // return length of the image file struct stat stat_buf; int ret = fstat (fd, &stat_buf); if (ret) { BX_PANIC (("fstat on cdrom image returned err: %s", strerror(errno))); } BX_INFO (("cdrom size is %lu bytes", stat_buf.st_size)); if ((stat_buf.st_size % 2048) != 0) { BX_ERROR (("expected cdrom image to be a multiple of 2048 bytes")); } return stat_buf.st_size / 2048; } #endif #ifdef __BEOS__ return GetNumDeviceBlocks(fd, BX_CD_FRAMESIZE); #elif defined(__sun) { struct stat buf = {0}; if (fd < 0) { BX_PANIC(("cdrom: capacity: file not open.")); } if( fstat(fd, &buf) != 0 ) BX_PANIC(("cdrom: capacity: stat() failed.")); return(buf.st_size); } #elif (defined(__NetBSD__) || defined(__OpenBSD__)) { // We just read the disklabel, imagine that... struct disklabel lp; if (fd < 0) BX_PANIC(("cdrom: capacity: file not open.")); if (ioctl(fd, DIOCGDINFO, &lp) < 0) BX_PANIC(("cdrom: ioctl(DIOCGDINFO) failed")); BX_DEBUG(( "capacity: %u", lp.d_secperunit )); return(lp.d_secperunit); } #elif defined(__linux__) { // Read the TOC to get the data size, since BLKGETSIZE doesn't work on // non-ATAPI drives. This is based on Keith Jones code below. // 21 June 2001 int i, dtrk_lba, num_sectors; int dtrk = 0; struct cdrom_tochdr td; struct cdrom_tocentry te; if (fd < 0) BX_PANIC(("cdrom: capacity: file not open.")); if (ioctl(fd, CDROMREADTOCHDR, &td) < 0) BX_PANIC(("cdrom: ioctl(CDROMREADTOCHDR) failed")); num_sectors = -1; dtrk_lba = -1; for (i = td.cdth_trk0; i <= td.cdth_trk1; i++) { te.cdte_track = i; te.cdte_format = CDROM_LBA; if (ioctl(fd, CDROMREADTOCENTRY, &te) < 0) BX_PANIC(("cdrom: ioctl(CDROMREADTOCENTRY) failed")); if (dtrk_lba != -1) { num_sectors = te.cdte_addr.lba - dtrk_lba; break; } if (te.cdte_ctrl & CDROM_DATA_TRACK) { dtrk = i; dtrk_lba = te.cdte_addr.lba; } } if (num_sectors < 0) { if (dtrk_lba != -1) { te.cdte_track = CDROM_LEADOUT; te.cdte_format = CDROM_LBA; if (ioctl(fd, CDROMREADTOCENTRY, &te) < 0) BX_PANIC(("cdrom: ioctl(CDROMREADTOCENTRY) failed")); num_sectors = te.cdte_addr.lba - dtrk_lba; } else BX_PANIC(("cdrom: no data track found")); } BX_INFO(("cdrom: Data track %d, length %d", dtrk, num_sectors)); return(num_sectors); } #elif defined(__FreeBSD__) { // Read the TOC to get the data size, since disklabel doesn't appear // to work, sadly. // Keith Jones, 16 January 2000 #define MAX_TRACKS 100 int i, num_tracks, num_sectors; struct ioc_toc_header td; struct ioc_read_toc_entry rte; struct cd_toc_entry toc_buffer[MAX_TRACKS + 1]; if (fd < 0) BX_PANIC(("cdrom: capacity: file not open.")); if (ioctl(fd, CDIOREADTOCHEADER, &td) < 0) BX_PANIC(("cdrom: ioctl(CDIOREADTOCHEADER) failed")); num_tracks = (td.ending_track - td.starting_track) + 1; if (num_tracks > MAX_TRACKS) BX_PANIC(("cdrom: TOC is too large")); rte.address_format = CD_LBA_FORMAT; rte.starting_track = td.starting_track; rte.data_len = (num_tracks + 1) * sizeof(struct cd_toc_entry); rte.data = toc_buffer; if (ioctl(fd, CDIOREADTOCENTRYS, &rte) < 0) BX_PANIC(("cdrom: ioctl(CDIOREADTOCENTRYS) failed")); num_sectors = -1; for (i = 0; i < num_tracks; i++) { if (rte.data[i].control & 4) { /* data track */ num_sectors = ntohl(rte.data[i + 1].addr.lba) - ntohl(rte.data[i].addr.lba); BX_INFO(( "cdrom: Data track %d, length %d", rte.data[i].track, num_sectors)); break; } } if (num_sectors < 0) BX_PANIC(("cdrom: no data track found")); return(num_sectors); } #elif defined WIN32 { if(bUseASPI) { return (GetCDCapacity(hid, tid, lun) / 2352); } else { unsigned long FileSize; return (GetFileSize(hFile, &FileSize) / 2048); } } #else BX_ERROR(( "capacity: your OS is not supported yet." )); return(0); #endif } void cdrom_interface::read_block(uint8* buf, int lba) { // Read a single block from the CD off_t pos; ssize_t n; #ifdef WIN32 if(bUseASPI) { ReadCDSector(hid, tid, lun, lba, buf, BX_CD_FRAMESIZE); n = BX_CD_FRAMESIZE; } else { pos = SetFilePointer(hFile, lba*BX_CD_FRAMESIZE, NULL, SEEK_SET); if (pos == 0xffffffff) { BX_PANIC(("cdrom: read_block: lseek returned error.")); } ReadFile(hFile, (void *) buf, BX_CD_FRAMESIZE, (unsigned long *) &n, NULL); } #else pos = lseek(fd, lba*BX_CD_FRAMESIZE, SEEK_SET); if (pos < 0) { BX_PANIC(("cdrom: read_block: lseek returned error.")); } n = read(fd, buf, BX_CD_FRAMESIZE); #endif if (n != BX_CD_FRAMESIZE) { BX_PANIC(("cdrom: read_block: read returned %d", (int) n)); } }