/* Accept a new piece of media, doing whatever's necessary to make it
* show up properly to the system.
*/
IOReturn
IODVDBlockStorageDriver::acceptNewMedia(void)
{
IOReturn result;
if (getMediaType() < kDVDMediaTypeMin || getMediaType() > kDVDMediaTypeMax) {
return super::acceptNewMedia();
}
/* Obtain disc status: */
switch (getMediaType()) {
case kDVDMediaTypeR:
case kDVDMediaTypeRW: {
bool checkIsWritable = false;
DVDDiscInfo discInfo;
DVDRZoneInfo rzoneInfo;
result = reportDiscInfo(&discInfo);
if (result != kIOReturnSuccess) {
break;
}
switch (discInfo.discStatus) {
case 0x01: /* is disc incomplete? */
checkIsWritable = true;
break;
case 0x02: /* is disc complete? */
checkIsWritable = discInfo.erasable ? true : false;
break;
}
/* Obtain rzone status: */
if (checkIsWritable) {
UInt16 rzoneLast = (discInfo.lastRZoneNumberInLastBorderMSB << 8) |
discInfo.lastRZoneNumberInLastBorderLSB;
result = reportRZoneInfo(rzoneLast,&rzoneInfo);
if (result != kIOReturnSuccess) {
break;
}
if (discInfo.discStatus == 0x01) { /* is disc incomplete? */
_maxBlockNumber = max( _maxBlockNumber,
max( OSSwapBigToHostInt32(rzoneInfo.rzoneStartAddress) +
OSSwapBigToHostInt32(rzoneInfo.rzoneSize), 1 ) - 1 );
}
if (rzoneInfo.incremental) { /* is rzone incremental? */
_writeProtected = false;
break;
}
if (discInfo.discStatus == 0x01) { /* is disc incomplete? */
if (rzoneInfo.blank) { /* is rzone invisible? */
UInt16 rzoneFirst = (discInfo.firstRZoneNumberInLastBorderMSB << 8) |
discInfo.firstRZoneNumberInLastBorderLSB;
if (rzoneFirst < rzoneLast) {
result = reportRZoneInfo(rzoneLast - 1,&rzoneInfo);
if (result != kIOReturnSuccess) {
break;
}
if (rzoneInfo.incremental) { /* is rzone incremental? */
_writeProtected = false;
break;
}
}
}
}
}
break;
}
case kDVDMediaTypePlusR:
case kDVDMediaTypeHDR: {
DVDDiscInfo discInfo;
DVDRZoneInfo rzoneInfo;
IOReturn result;
result = reportDiscInfo(&discInfo);
if (result != kIOReturnSuccess) {
break;
}
/* Obtain rzone status: */
if (discInfo.discStatus == 0x01) { /* is disc incomplete? */
UInt16 rzoneLast = (discInfo.lastRZoneNumberInLastBorderMSB << 8) |
discInfo.lastRZoneNumberInLastBorderLSB;
_writeProtected = false;
result = reportRZoneInfo(rzoneLast,&rzoneInfo);
if (result != kIOReturnSuccess) {
break;
}
_maxBlockNumber = max( _maxBlockNumber,
max( OSSwapBigToHostInt32(rzoneInfo.rzoneStartAddress) +
OSSwapBigToHostInt32(rzoneInfo.rzoneSize), 1 ) - 1 );
}
break;
}
}
return IOBlockStorageDriver::acceptNewMedia();
}
/* Accept a new piece of media, doing whatever's necessary to make it
* show up properly to the system. The arbitration lock is assumed to
* be held during the call.
*/
IOReturn
IOCDBlockStorageDriver::acceptNewMedia(void)
{
IOReturn result;
int i;
int nentries;
int nAudioTracks;
/* First, we cache information about the tracks on the disc: */
result = cacheTocInfo();
if (result != kIOReturnSuccess) {
assert(_toc == NULL);
}
/* Scan thru the track list, counting up the number of Data and Audio tracks. */
nAudioTracks = 0;
_minBlockNumberAudio = 0xFFFFFFFF;
_maxBlockNumberAudio = 0xFFFFFFFF;
if (_toc) {
nentries = CDTOCGetDescriptorCount(_toc);
for (i = 0; i < nentries; i++) {
UInt32 lba = CDConvertMSFToClippedLBA(_toc->descriptors[i].p);
/* tracks 1-99, not leadout or skip intervals */
if (_toc->descriptors[i].point <= 99 && _toc->descriptors[i].adr == 1) {
if ((_toc->descriptors[i].control & 0x04)) {
/* it's a data track */
_maxBlockNumberAudio = min(_maxBlockNumberAudio, lba ? (lba - 1) : 0);
} else {
nAudioTracks++;
_minBlockNumberAudio = min(_minBlockNumberAudio, lba);
}
/* leadout */
} else if (_toc->descriptors[i].point == 0xA2 && _toc->descriptors[i].adr == 1) {
_maxBlockNumber = max(_maxBlockNumber, lba ? (lba - 1) : 0);
_maxBlockNumberAudio = min(_maxBlockNumberAudio, lba ? (lba - 1) : 0);
}
}
if (_maxBlockNumberAudio < _minBlockNumberAudio) {
_maxBlockNumberAudio = 0xFFFFFFFF;
/* find first data track or leadout after the audio tracks */
for (i = 0; i < nentries; i++) {
UInt32 lba = CDConvertMSFToClippedLBA(_toc->descriptors[i].p);
/* tracks 1-99, not leadout or skip intervals */
if (_toc->descriptors[i].point <= 99 && _toc->descriptors[i].adr == 1) {
if ((_toc->descriptors[i].control & 0x04)) {
/* it's a data track */
if (lba > _minBlockNumberAudio) {
_maxBlockNumberAudio = min(_maxBlockNumberAudio, lba - 1);
}
}
/* leadout */
} else if (_toc->descriptors[i].point == 0xA2 && _toc->descriptors[i].adr == 1) {
if (lba > _minBlockNumberAudio) {
_maxBlockNumberAudio = min(_maxBlockNumberAudio, lba - 1);
}
}
}
}
}
/* Obtain disc status: */
switch (getMediaType()) {
case kCDMediaTypeR:
case kCDMediaTypeRW: {
bool checkIsWritable = false;
CDDiscInfo discInfo;
CDTrackInfo trackInfo;
result = reportDiscInfo(&discInfo);
if (result != kIOReturnSuccess) {
break;
}
switch (discInfo.discStatus) {
case 0x01: /* is disc incomplete? */
checkIsWritable = true;
break;
case 0x02: /* is disc complete? */
checkIsWritable = discInfo.erasable ? true : false;
break;
}
/* Obtain track status: */
if (checkIsWritable) {
UInt16 trackLast = discInfo.lastTrackNumberInLastSessionLSB;
result = reportTrackInfo(trackLast,&trackInfo);
if (result != kIOReturnSuccess) {
break;
}
if (discInfo.discStatus == 0x01) { /* is disc incomplete? */
_maxBlockNumber = CDConvertMSFToClippedLBA(discInfo.lastPossibleStartTimeOfLeadOut);
}
if (trackInfo.packet) { /* is track incremental? */
_writeProtected = false;
break;
}
if (discInfo.discStatus == 0x01) { /* is disc incomplete? */
if (trackInfo.blank) { /* is track invisible? */
UInt16 trackFirst = discInfo.firstTrackNumberInLastSessionLSB;
if (trackFirst < trackLast) {
result = reportTrackInfo(trackLast - 1,&trackInfo);
if (result != kIOReturnSuccess) {
break;
}
if (trackInfo.packet) { /* is track incremental? */
_writeProtected = false;
break;
}
}
}
}
}
break;
}
}
/* Instantiate a media object and attach it to ourselves. */
result = super::acceptNewMedia();
if (result != kIOReturnSuccess) {
return(result); /* give up now */
}
return(result);
}
