bool mess_cdrom_driver::read_toc() { if (m_cd) { const cdrom_toc *toc = cdrom_get_toc(m_cd); num_tracks = cdrom_get_last_track(m_cd); switch (toc->tracks[0].trktype) { case CD_TRACK_MODE1: bin_sector_size=2048; break; case CD_TRACK_MODE2_FORM1: bin_sector_size=2048; break; case CD_TRACK_MODE2: bin_sector_size=2336; break; case CD_TRACK_MODE2_FORM_MIX: bin_sector_size=2336; break; default: bin_sector_size=2352; break; } set_native_sector_size(bin_sector_size); num_sectors = cdrom_get_track_start(m_cd, num_tracks) + toc->tracks[num_tracks].frames; // printf("mess_cdrom_driver: %d sectors, native size %d\n",num_sectors, bin_sector_size); return true; } return false; }
void matsucd_command_w( running_machine &machine, UINT8 data ) { UINT8 cmd; /* make sure we're enabled */ if ( cd.enabled == 0 ) return; /* make sure /CMD is asserted */ if ( cd.cmd_signal == 0 ) return; if ( cd.cdda_set == 0 ) { // 2009-10, FP: for some reason, cdda_from_cdrom was not returning the correct // CDDA device. Hence, as a temp workaround, I added the cdda to the struct // and its tag is configured in matsucd_init if ( cd.cdrom ) cdda_set_cdrom( cd.cdda, cd.cdrom); cd.cdda_set = 1; } cd.input[cd.input_pos++] = data; cmd = cd.input[0]; switch( cmd ) { case 0x01: /* seek */ { if ( cd.input_pos < 7 ) return; /* stop CDDA audio if necessary */ matsucd_cdda_stop(machine); cd.motor = 1; memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x02: /* read sectors */ { if ( cd.input_pos < 7 ) return; /* stop CDDA audio if necessary */ matsucd_cdda_stop(machine); /* LBA */ cd.lba = cd.input[1]; cd.lba <<= 8; cd.lba |= cd.input[2]; cd.lba <<= 8; cd.lba |= cd.input[3]; /* Number of blocks */ cd.num_blocks = cd.input[4]; cd.num_blocks <<= 8; cd.num_blocks |= cd.input[5]; /* Reset transfer count */ cd.xfer_offset = 0; /* go ahead and cache the first block */ if (!cdrom_read_data(cd.cdrom, cd.lba, cd.sector_buffer, matsucd_getsector_type())) { logerror( "MATSUCD - Warning: Read error on CD!\n" ); matsucd_command_error( machine ); return; } cd.motor = 1; memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x04: /* motor on */ { if ( cd.input_pos < 7 ) return; cd.motor = 1; memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x05: /* motor off */ { if ( cd.input_pos < 7 ) return; /* stop CDDA audio if necessary */ matsucd_cdda_stop(machine); cd.motor = 0; memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x09: /* play audio cd, LBA mode */ { UINT32 lba, numblocks; if ( cd.input_pos < 7 ) return; lba = cd.input[1]; lba <<= 8; lba |= cd.input[2]; lba <<= 8; lba |= cd.input[3]; numblocks = cd.input[4]; numblocks <<= 8; numblocks |= cd.input[5]; numblocks <<= 8; numblocks |= cd.input[6]; matsucd_cdda_play( machine, lba, numblocks ); cd.motor = 1; memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x0a: /* play audio cd, MSF mode */ { UINT32 start, end, lba_start, lba_end; if ( cd.input_pos < 7 ) return; start = cd.input[1]; start <<= 8; start |= cd.input[2]; start <<= 8; start |= cd.input[3]; end = cd.input[4]; end <<= 8; end |= cd.input[5]; end <<= 8; end |= cd.input[6]; lba_start = MSF2LBA( start ); lba_end = MSF2LBA( end ); if ( end == 0xffffff ) { lba_end = cdrom_get_track_start(cd.cdrom,cdrom_get_last_track(cd.cdrom)-1); lba_end += cdrom_get_toc(cd.cdrom)->tracks[cdrom_get_last_track(cd.cdrom)-1].frames; } if ( lba_end <= lba_start ) { matsucd_cdda_stop(machine); } else { matsucd_cdda_play( machine, lba_start, lba_end - lba_start ); cd.motor = 1; } memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x0b: /* play audio track and index */ { UINT8 track_start = cd.input[1]; UINT8 index_start = cd.input[2]; UINT8 track_end = cd.input[3]; UINT8 index_end = cd.input[4]; UINT32 lba_start, lba_end; /* TODO: Add index support once the CDDA engine supports it */ (void)index_start; (void)index_end; /* sanitize values */ if ( track_start == 0 ) track_start++; if ( track_end == 0 ) track_end++; if ( track_end > cdrom_get_last_track(cd.cdrom) ) track_end = cdrom_get_last_track(cd.cdrom); /* find the start and stop positions */ lba_start = cdrom_get_track_start(cd.cdrom,track_start-1); lba_end = cdrom_get_track_start(cd.cdrom,track_end-1); lba_end += cdrom_get_toc(cd.cdrom)->tracks[track_end-1].frames; if ( lba_end <= lba_start ) { matsucd_cdda_stop(machine); } else { matsucd_cdda_play( machine, lba_start, lba_end - lba_start ); cd.motor = 1; } memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x81: /* status read */ { UINT8 newstatus = cd.status; newstatus &= MATSU_STATUS_SUCCESS | MATSU_STATUS_ERROR | MATSU_STATUS_PLAYING; newstatus |= MATSU_STATUS_READY; if (cd.cdrom) { newstatus |= MATSU_STATUS_MEDIA; } if (cd.motor) newstatus |= MATSU_STATUS_MOTOR; cd.output[0] = newstatus; matsucd_set_status( machine, newstatus ); matsucd_complete_cmd( machine, 1 ); } break; case 0x82: /* error read */ { if ( cd.input_pos < 7 ) return; memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 6 ); } break; case 0x84: /* set mode */ { if ( cd.input_pos < 7 ) return; cd.sector_size = cd.input[2]; cd.sector_size <<= 8; cd.sector_size |= cd.input[3]; memset( cd.output, 0, 6 ); matsucd_complete_cmd( machine, 0 ); } break; case 0x87: /* read SUBQ */ { int msfmode; UINT32 lba; UINT8 track; if ( cd.input_pos < 7 ) return; msfmode = (cd.input[1] & 0x02) ? 1 : 0; memset( cd.output, 0, 13 ); cd.output[0] = matsucd_cdda_getstatus( machine, &lba ); if ( lba > 0 ) { UINT32 disk_pos; UINT32 track_pos; track = cdrom_get_track(cd.cdrom, lba); cd.output[1] = cdrom_get_adr_control(cd.cdrom, track); cd.output[2] = track+1; cd.output[3] = 0; /* index */ disk_pos = lba; if ( msfmode ) disk_pos = LBA2MSF(disk_pos); cd.output[4] = (disk_pos >> 24) & 0xff; cd.output[5] = (disk_pos >> 16) & 0xff; cd.output[6] = (disk_pos >> 8) & 0xff; cd.output[7] = (disk_pos) & 0xff; track_pos = lba - cdrom_get_track_start(cd.cdrom, track); if ( msfmode ) track_pos = LBA2MSF(track_pos); cd.output[8] = (track_pos >> 24) & 0xff; cd.output[9] = (track_pos >> 16) & 0xff; cd.output[10] = (track_pos >> 8) & 0xff; cd.output[11] = (track_pos) & 0xff; /* TODO: UPC flag at offset 12 */ cd.output[12] = 0; } matsucd_complete_cmd( machine, 13 ); } break; case 0x89: /* read disk info */ { UINT32 end; if ( cd.input_pos < 7 ) return; memset( cd.output, 0, 5 ); cd.output[0] = cdrom_get_last_track(cd.cdrom) ? 1 : 0; cd.output[1] = cdrom_get_last_track(cd.cdrom); end = cdrom_get_track_start(cd.cdrom,cd.output[1]-1); end += cdrom_get_toc(cd.cdrom)->tracks[cd.output[1]-1].frames; end = LBA2MSF(end); cd.output[2] = (end >> 16) & 0xff; cd.output[3] = (end >> 8) & 0xff; cd.output[4] = (end) & 0xff; matsucd_complete_cmd( machine, 5 ); } break; case 0x8a: /* read toc */ { UINT8 track; int msfmode; UINT32 track_start; if ( cd.input_pos < 7 ) return; /* stop CDDA audio if necessary */ matsucd_cdda_stop(machine); track = cd.input[2]; msfmode = (cd.input[1] & 0x02) ? 1 : 0; if ( cd.cdrom == NULL ) { logerror( "MATSUCD - Warning: Reading TOC without a CD!\n" ); matsucd_command_error( machine ); return; } if ( track > cdrom_get_last_track(cd.cdrom) ) { logerror( "MATSUCD - Warning: Reading invalid track entry from TOC!\n" ); matsucd_command_error( machine ); return; } memset( cd.output, 0, 7 ); track_start = cdrom_get_track_start(cd.cdrom, track > 0 ? (track-1) : track ); if ( msfmode ) track_start = LBA2MSF( track_start ); cd.output[1] = cdrom_get_adr_control(cd.cdrom, track > 0 ? (track-1) : track); cd.output[2] = track; cd.output[3] = (track == 0 ) ? cdrom_get_last_track(cd.cdrom) : 0; cd.output[4] = (track_start >> 24) & 0xff; cd.output[5] = (track_start >> 16) & 0xff; cd.output[6] = (track_start >> 8) & 0xff; cd.output[7] = (track_start) & 0xff; cd.motor = 1; matsucd_complete_cmd( machine, 8 ); } break; case 0x8b: /* pause audio */ { if ( cd.input_pos < 7 ) return; matsucd_cdda_pause( machine, (cd.input[1] == 0) ? 1 : 0 ); memset( cd.output, 0, 7 ); matsucd_complete_cmd( machine, 0 ); } break; case 0xa3: /* front panel */ { if ( cd.input_pos < 7 ) return; /* TODO: ??? */ memset( cd.output, 0, 7 ); matsucd_complete_cmd( machine, 0 ); } break; default: logerror( "MATSUCD: Unknown/inimplemented command %08x\n", cmd ); break; }