253 lines
5.7 KiB
C
253 lines
5.7 KiB
C
/*
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* Copyright (c) 2010, Wei Mingzhi <whistler@openoffice.org>.
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* All Rights Reserved.
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*
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* Based on: Cdrom for Psemu Pro like Emulators
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* By: linuzappz <linuzappz@hotmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses>.
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*/
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#include "cdr.h"
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#ifdef _MACOSX
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#include <IOKit/IOKitLib.h>
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#include <IOKit/IOBSD.h>
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#include <IOKit/storage/IOCDMedia.h>
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#include <IOKit/storage/IODVDMedia.h>
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#include <IOKit/storage/IOMedia.h>
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#include <IOKit/storage/IOCDMediaBSDClient.h>
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#include <CoreFoundation/CoreFoundation.h>
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int cdHandle = -1;
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char cdDevice[4096] = "";
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static int IsPsxDisc(const char *dev) {
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int fd;
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char buf[CD_FRAMESIZE_RAW];
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dk_cd_read_t r;
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fd = open(dev, O_RDONLY, 0);
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if (fd < 0) return 0;
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memset(&r, 0, sizeof(r));
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r.offset = msf_to_lba(0, 2, 4) * CD_FRAMESIZE_RAW;
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r.sectorArea = 0xF8;
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r.sectorType = kCDSectorTypeUnknown;
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r.bufferLength = CD_FRAMESIZE_RAW;
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r.buffer = buf;
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if (ioctl(fd, DKIOCCDREAD, &r) != kIOReturnSuccess) {
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close(fd);
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return 0;
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}
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close(fd);
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if (strncmp(buf + 56, "Sony Computer Entertainment", 27) == 0) {
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return 1;
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}
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return 0;
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}
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static void FindCdDevice(char *dev) {
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io_object_t next_media;
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kern_return_t kern_result;
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io_iterator_t media_iterator;
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CFMutableDictionaryRef classes_to_match;
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const char *name, *cd = kIOCDMediaClass, *dvd = kIODVDMediaClass;
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dev[0] = '\0';
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name = cd;
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start:
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classes_to_match = IOServiceMatching(name);
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if (classes_to_match == NULL) goto end;
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CFDictionarySetValue(classes_to_match, CFSTR(kIOMediaEjectableKey),
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kCFBooleanTrue);
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kern_result = IOServiceGetMatchingServices(kIOMasterPortDefault,
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classes_to_match, &media_iterator);
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if (kern_result != KERN_SUCCESS) goto end;
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next_media = IOIteratorNext(media_iterator);
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if (next_media != 0) {
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char psz_buf[0x32];
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size_t dev_path_length;
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CFTypeRef str_bsd_path;
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do {
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str_bsd_path = IORegistryEntryCreateCFProperty(next_media,
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CFSTR(kIOBSDNameKey), kCFAllocatorDefault, 0);
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if (str_bsd_path == NULL) {
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IOObjectRelease(next_media);
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continue;
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}
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strcpy(psz_buf, "/dev/r");
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dev_path_length = strlen(psz_buf);
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if (CFStringGetCString(str_bsd_path, (char *)&psz_buf + dev_path_length,
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sizeof(psz_buf) - dev_path_length, kCFStringEncodingASCII))
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{
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strcpy(dev, psz_buf);
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if (IsPsxDisc(dev)) {
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CFRelease(str_bsd_path);
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IOObjectRelease(next_media);
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IOObjectRelease(media_iterator);
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return;
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}
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}
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CFRelease(str_bsd_path);
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IOObjectRelease(next_media);
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} while ((next_media = IOIteratorNext(media_iterator)) != 0);
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}
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IOObjectRelease(media_iterator);
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end:
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if (dev[0] == '\0') {
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if (name == cd) {
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name = dvd; // Is this really necessary or correct? Dunno...
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goto start;
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}
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}
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}
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int OpenCdHandle(const char *dev) {
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if (dev != NULL && dev[0] != '\0') strcpy(cdDevice, dev);
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else if (cdDevice[0] == '\0') FindCdDevice(cdDevice);
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cdHandle = open(cdDevice, O_RDONLY, 0);
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if (cdHandle < 0) return -1;
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if (CdrSpeed > 0) {
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u_int16_t speed = kCDSpeedMin * CdrSpeed;
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ioctl(cdHandle, DKIOCCDSETSPEED, &speed);
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}
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return 0;
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}
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void CloseCdHandle() {
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if (cdHandle != -1) close(cdHandle);
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cdHandle = -1;
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}
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int IsCdHandleOpen() {
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return (cdHandle != -1);
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}
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long GetTN(unsigned char *buffer) {
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if (cdHandle < 0) return -1;
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// TODO
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buffer[0] = 1;
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buffer[1] = 1;
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return 0;
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}
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long GetTD(unsigned char track, unsigned char *buffer) {
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if (cdHandle < 0) return -1;
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// TODO
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memset(buffer + 1, 0, 3);
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return 0;
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}
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long GetTE(unsigned char track, unsigned char *m, unsigned char *s, unsigned char *f) {
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return -1; // TODO
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}
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long ReadSector(crdata *cr) {
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int lba;
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dk_cd_read_t r;
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char buf[CD_FRAMESIZE_RAW];
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if (cdHandle < 0) return -1;
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lba = msf_to_lba(cr->msf.cdmsf_min0, cr->msf.cdmsf_sec0, cr->msf.cdmsf_frame0);
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memset(&r, 0, sizeof(r));
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r.offset = lba * CD_FRAMESIZE_RAW;
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r.sectorArea = 0xF8;
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r.sectorType = kCDSectorTypeUnknown;
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r.bufferLength = CD_FRAMESIZE_RAW;
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r.buffer = buf; // ??? Why using cr->buf directly does not work in threaded mode?
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if (ioctl(cdHandle, DKIOCCDREAD, &r) != kIOReturnSuccess) {
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return -1;
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}
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memcpy(cr->buf, buf, CD_FRAMESIZE_RAW);
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return 0;
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}
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long PlayCDDA(unsigned char *sector) {
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return 0; // TODO
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}
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long StopCDDA() {
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return 0; // TODO
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}
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long GetStatus(int playing, struct CdrStat *stat) {
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memset(stat, 0, sizeof(struct CdrStat));
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stat->Type = 0x01;
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// Close and reopen the CD handle. If opening failed,
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// then there is no CD in drive.
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// Note that this WILL be screwed if user inserted another
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// removable device such as USB stick when tray is open.
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// There may be a better way, but this should do the job.
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if (cdHandle >= 0) {
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close(cdHandle);
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cdHandle = -1;
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}
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cdHandle = open(cdDevice, O_RDONLY, 0);
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if (cdHandle < 0) {
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// No CD in drive
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stat->Type = 0xff;
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stat->Status |= 0x10;
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} else {
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if (CdrSpeed > 0) {
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u_int16_t speed = kCDSpeedMin * CdrSpeed;
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ioctl(cdHandle, DKIOCCDSETSPEED, &speed);
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}
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}
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return 0;
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}
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unsigned char *ReadSub(const unsigned char *time) {
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return NULL; // TODO
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}
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char *CDRgetDriveLetter(void) {
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return cdDevice;
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}
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#endif
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