/* * * $Id: k3bdevice.h 679274 2007-06-23 13:23:58Z trueg $ * Copyright (C) 2003-2007 Sebastian Trueg * * This file is part of the K3b project. * Copyright (C) 1998-2007 Sebastian Trueg * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * See the file "COPYING" for the exact licensing terms. */ #ifndef K3BDEVICE_H #define K3BDEVICE_H #include #include #include #include #include #include #include #include #ifdef Q_OS_FREEBSD struct cam_device; #endif namespace K3bDevice { class Toc; /** * \brief The main class representing a device. * * Devices are constructed by the DeviceManager. * * All methods except for open and close in Device are thread-safe which basicly means that * no two commands are sent to the device at the same time. */ // FIXME: all methods are const which makes no sense at all! class LIBK3BDEVICE_EXPORT Device { public: #ifdef Q_OS_FREEBSD typedef struct cam_device* Handle; #else // file descriptor typedef int Handle; #endif /** * The available cdrdao drivers * \deprecated This will be moved to libk3b */ static const char* cdrdao_drivers[]; // FIXME: make this protected ~Device(); /** * The interface type. * * \return K3bDevice::SCSI or K3bDevice::IDE. */ Interface interfaceType() const; /** * \deprecated use readCapabilities() and writeCapabilities() * The device type. * * @return A bitwise or of K3bDevice::DeviceType. */ int type() const; /** * The mediatypes this device is able to read. * * \return A bitwise or of K3bDevice::MediaType */ int readCapabilities() const; /** * The media types this device is able to write. * * \return A bitwise or of K3bDevice::MediaType */ int writeCapabilities() const; /** * \return Vendor string as reported by the device's firmware. */ const TQString& vendor() const { return m_vendor; } /** * \return Description string as reported by the device's firmware. */ const TQString& description() const { return m_description; } /** * \return Version string as reported by the device's firmware. */ const TQString& version() const { return m_version; } /** * Shortcut for \code writesCd() || writesDvd() \endcode * * \return true if the device is able to burn media. */ bool burner() const; /** * Shortcut for \code type() & DEVICE_CD_R \endcode * * \return true if the device is able to burn CD-R media. */ bool writesCd() const; /** * Shortcut for \code type() & DEVICE_CD_RW \endcode * * \return true if the device is able to burn CD-RW media. */ bool writesCdrw() const; /** * Shortcut for \code writesDvdMinus() || writesDvdPlus() \endcode * * \return true if the device is able to burn DVD media. */ bool writesDvd() const; /** * Shortcut for \code type() & (DEVICE_DVD_PLUS_R|DEVICE_DVD_PLUS_RW) \endcode * * \return true if the device is able to burn DVD+R or DVD+RW media. */ bool writesDvdPlus() const; /** * Shortcut for \code type() & (DEVICE_DVD_R|DEVICE_DVD_RW) \endcode * * \return true if the device is able to burn DVD-R or DVD-RW media. */ bool writesDvdMinus() const; /** * Shortcut for \code type() & DEVICE_DVD_ROM \endcode * * \return true if the device is able to read DVD media. */ bool readsDvd() const; /** * @deprecated Use burnfree() */ bool burnproof() const; /** * @return true is the device is a writer and supports buffer underrun free recording (BURNFREE) */ bool burnfree() const; /** * Shortcut for \code writingModes() & WRITINGMODE_SAO \endcode * * \deprecated use supportsWritingMode() */ bool dao() const; /** * Check if the device supports a certain writing mode. * * \return true if the device supports the requested writing mode or false otherwise. */ bool supportsWritingMode( WritingMode mode ) const { return (m_writeModes & mode); } /** * Shortcut for * \code * writingModes() & (WRITINGMODE_RAW|WRITINGMODE_RAW_R16|WRITINGMODE_RAW_R96P|WRITINGMODE_RAW_R96R) * \endcode */ bool supportsRawWriting() const; /** * @return true if the device is a DVD-R(W) writer which supports test writing. */ bool dvdMinusTestwrite() const { return m_dvdMinusTestwrite; } int maxReadSpeed() const { return m_maxReadSpeed; } int currentWriteSpeed() const { return m_currentWriteSpeed; } /** * Size of the device's internal writing buffer. * * \return The size of the buffer in KB. */ int bufferSize() const { return m_bufferSize; } /** * @return the corresponding device name. */ const TQString& devicename() const; /** * for SCSI devices this should be something like /dev/scd0 or /dev/sr0 * for IDE device this should be something like /dev/hdb1 */ const TQString& blockDeviceName() const { return m_blockDevice; } /** * This is only valid for SCSI devices. Without devfs it's something * like /dev/sg0. Otherwise something like /dev/scsi/host0/bus0/target0/lun0/generic. * * This is not needed in K3b at all. But cdrecord and cdrdao use the sg devices and * we need it to fixup it's permissions in K3bSetup. */ const TQString& genericDevice() const { return m_genericDevice; } /** * \return All device nodes for this drive. */ const TQStringList& deviceNodes() const; /** * \see K3bDevice::Device::deviceNodes() */ void addDeviceNode( const TQString& ); /** * Makes only sense to use with scsi devices * @return a string for use with the cdrtools * @deprecated */ TQString busTargetLun() const; int scsiBus() const { return m_bus; } int scsiId() const { return m_target; } int scsiLun() const { return m_lun; } int maxWriteSpeed() const { return m_maxWriteSpeed; } /** * \deprecated the cdrdao driver has no place in this library. It will be removed. */ const TQString& cdrdaoDriver() const { return m_cdrdaoDriver; } /** * returns: 0 auto (no cdrdao-driver selected) * 1 yes * 2 no * * \deprecated cdrdao specific stuff has no place in this library. It will be removed. */ int cdTextCapable() const; /** * internal K3b value. * \deprecated This should not be handled here. */ void setCurrentWriteSpeed( int s ) { m_currentWriteSpeed = s; } /** * Use this if the speed was not detected correctly. */ void setMaxReadSpeed( int s ) { m_maxReadSpeed = s; } /** * Use this if the speed was not detected correctly. */ void setMaxWriteSpeed( int s ) { m_maxWriteSpeed = s; } /** * Use this if cdrdao is not able to autodetect the nessessary driver. * \deprecated the cdrdao driver has no place in this library. It will be removed. */ void setCdrdaoDriver( const TQString& d ) { m_cdrdaoDriver = d; } /** * Only used if the cdrdao-driver is NOT set to "auto". * In that case it must be manually set because there * is no way to autosense the cd-text capability. * * \deprecated the cdrdao driver has no place in this library. It will be removed. */ void setCdTextCapability( bool ); /** * checks if unit is ready (medium inserted and ready for command) * * Refers to the MMC command: TEST UNIT READY */ bool testUnitReady() const; /** * checks if disk is empty, returns @p K3bDevice::State */ int isEmpty() const; /** * @return true if inserted media is rewritable. */ bool rewritable() const; /** * Check if the inserted media is a DVD. * * \return true if the inserted media is a DVD. */ bool isDVD() const; /** * @return The number of sessions on the media. */ int numSessions() const; /** * @return The toc of the media or an empty (invalid) K3bDevice::Toc if * no or an empty media is inserted. */ Toc readToc() const; /** * Append ISRC and MCN to the TOC if found * This has been moved to a separate method since it can take a very long time * to scan for all ISRCs. */ void readIsrcMcn( Toc& toc ) const; /** * Read the CD-TEXT of an audio or mixed-mode CD. * * \return A CdText object filled with the CD-TEXT values or an empty one in case of * pure data media or if the CD does not contain CD-TEXT. */ CdText readCdText() const; /** * @return The K3bDevice::Track::DataMode of the track. * @see K3bDevice::Track */ int getTrackDataMode( const Track& track ) const; /** * @return the mode of a data track. K3bDevice::Track::MODE1, K3bDevice::Track::MODE2, * K3bDevice::Track::XA_FORM1, or K3bDevice::Track::XA_FORM2. */ int getDataMode( const K3b::Msf& sector ) const; /** * block or unblock the drive's tray * \return true on success and false on error. * \see eject() */ bool block( bool ) const; /** * Eject the media. * \return true on success and false on error. * \see load() */ bool eject() const; /** * Load the media. * @return true on success and false on error. */ bool load() const; /** * Enable or disable auto-ejecting. For now this is a no-op on non-Linux systems. * \param enabled if true auto-ejecting will be enabled, otherwise disabled. * \return true if the operation was successful, false otherwise */ bool setAutoEjectEnabled( bool enabled ) const; /** * The supported writing modes. * * \return A bitwise or of K3bDevice::WritingMode or 0 in case of a read-only device. */ int writingModes() const { return m_writeModes; } bool readSectorsRaw(unsigned char *buf, int start, int count) const; /** * Get a list of supported profiles. See enumeration MediaType. */ int supportedProfiles() const; /** * Tries to get the current profile from the drive. * @returns -1 on error (command failed or unknown profile) * MediaType otherwise (MEDIA_NONE means: no current profile) */ int currentProfile() const; /** * Check if a certain feature is current. * \see k3bdevicetypes.h for feature constants. * \return 1 if the feature is current, 0 if not, -1 on error */ int featureCurrent( unsigned int feature ) const; /** * This is the method to use! */ DiskInfo diskInfo() const; /** * Refers to MMC command READ CAPACITY */ bool readCapacity( K3b::Msf& ) const; /** * Refers to MMC command READ FORMAT CAPACITY * * @param wantedFormat The requested format type. * @param result If true is returned this contains the requested value. * @param currentMax If not 0 this will be filled with the Current/Maximum Descriptor value. * @param currentMax If not 0 this will be filled with the Current/Maximum Format Type. */ bool readFormatCapacity( int wantedFormat, K3b::Msf& result, K3b::Msf* currentMax = 0, int* currentMaxFormat = 0 ) const; /** * Determine the type of the currently mounted medium * * @returns K3bDevice::MediaType */ int mediaType() const; /** * Returnes the list of supported writing speeds as reported by * mode page 2Ah. * * This only works with MMC3 compliant drives. */ TQValueList determineSupportedWriteSpeeds() const; /** * @returnes the speed in kb/s or 0 on failure. */ int determineMaximalWriteSpeed() const; /** * Open the device for access via a file descriptor. * @return true on success or if the device is already open. * @see close() * * Be aware that this method is not thread-safe. */ bool open( bool write = false ) const; /** * Close the files descriptor. * @see open() * * Be aware that this method is not thread-safe. */ void close() const; /** * @return true if the device was successfully opened via @p open() */ bool isOpen() const; /** * fd on linux, cam on bsd */ Handle handle() const; /** * \return \li -1 on error (no DVD) * \li 1 (CSS/CPPM) * \li 2 (CPRM) if scrambled * \li 0 otherwise */ int copyrightProtectionSystemType() const; // MMC commands /** * SET SPEED command * * @param readingSpeed The preferred reading speed (0x0000-0xFFFE). 0xFFFF requests * fot the logical unit to select the optimal speed. * @param writingSpeed The preferred writing speed (0x0000-0xFFFE). 0xFFFF requests * fot the logical unit to select the optimal speed. * @param cav Is the speed pure CAV? */ bool setSpeed( unsigned int readingSpeed, unsigned int writingSpeed, bool cav = false ) const; /** * if true is returned dataLen specifies the actual length of *data which needs to be * deleted after using. */ bool readDiscInformation( unsigned char** data, unsigned int& dataLen ) const; /** * @param pf If false all fields in the descriptor data is vendor specific. Default should be true. */ bool modeSelect( unsigned char* page, unsigned int pageLen, bool pf, bool sp ) const; /** * if true is returned pageLen specifies the actual length of *pageData which needs to be * deleted after using. */ bool modeSense( unsigned char** pageData, unsigned int& pageLen, int page ) const; /** * if true is returned dataLen specifies the actual length of *data which needs to be * deleted after using. */ bool readTocPmaAtip( unsigned char** data, unsigned int& dataLen, int format, bool msf, int track ) const; /** * @param type specifies what value means: * \li 00b - value refers to a logical block address * \li 01b - value refers to a track number where 0 will treat the lead-in as if it * were a logical track and ffh will read the invisible or incomplete track. * \li 10b - value refers to a session number * */ bool readTrackInformation( unsigned char** data, unsigned int& dataLen, int type, int value ) const; /** * if true is returned dataLen specifies the actual length of *data which needs to be * deleted after using. */ bool readDiscStructure( unsigned char** data, unsigned int& dataLen, unsigned int mediaType = 0x0, unsigned int format = 0x0, unsigned int layer = 0x0, unsigned long adress = 0, unsigned int agid = 0x0 ) const; /** * In MMC5 readDvdStructure was renamed to readDiscStructure. This method does the same * like the above. */ bool readDvdStructure( unsigned char** data, unsigned int& dataLen, unsigned int format = 0x0, unsigned int layer = 0x0, unsigned long adress = 0, unsigned int agid = 0x0 ) const; /** * if true is returned dataLen specifies the actual length of *data which needs to be * deleted after using. */ bool mechanismtqStatus( unsigned char** data, unsigned int& dataLen ) const; /** * Read a single feature. * data will be filled with the feature header and the descriptor */ bool getFeature( unsigned char** data, unsigned int& dataLen, unsigned int feature ) const; /** * if true is returned dataLen specifies the actual length of *data which needs to be * deleted after using. */ bool getPerformance( unsigned char** data, unsigned int& dataLen, unsigned int type, unsigned int dataType, unsigned int lba = 0 ) const; /** * @param sectorType: \li 000b - all types * \li 001b - CD-DA * \li 010b - Mode 1 * \li 011b - Mode 2 formless * \li 100b - Mode 2 form 1 * \li 101b - Mode 2 form 2 * * @param startAdress Lba 0 is mapped to msf 00:00:00 so this method uses * startAdress+150 as the starting msf. * * @param endAdress This is the ending address which is NOT included in the read operation. * Lba 0 is mapped to msf 00:00:00 so this method uses * endAdress+150 as the ending msf. * * @param c2: \li 00b - No error info * \li 01b - 294 bytes, one bit for every byte of the 2352 bytes * \li 10b - 296 bytes, xor of all c2 bits, zero pad bit, 294 c2 bits * * @param subChannel: \li 000b - No Sub-channel data * \li 001b - RAW P-W Sub-channel (96 bytes) * \li 010b - Formatted Q Sub-channel (16 bytes) * \li 100b - Corrected and de-interleaved R-W Sub-channel (96 bytes) */ bool readCdMsf( unsigned char* data, unsigned int dataLen, int sectorType, bool dap, const K3b::Msf& startAdress, const K3b::Msf& endAdress, bool sync, bool header, bool subHeader, bool userData, bool edcEcc, int c2, int subChannel ) const; /** * @param sectorType: \li 000b - all types * \li 001b - CD-DA * \li 010b - Mode 1 * \li 011b - Mode 2 formless * \li 100b - Mode 2 form 1 * \li 101b - Mode 2 form 2 * * @param c2: \li 00b - No error info * \li 01b - 294 bytes, one bit for every byte of the 2352 bytes * \li 10b - 296 bytes, xor of all c2 bits, zero pad bit, 294 c2 bits * * @param subChannel: \li 000b - No Sub-channel data * \li 001b - RAW P-W Sub-channel (96 bytes) * \li 010b - Formatted Q Sub-channel (16 bytes) * \li 100b - Corrected and de-interleaved R-W Sub-channel (96 bytes) */ bool readCd( unsigned char* data, unsigned int dataLen, int sectorType, bool dap, unsigned long startAdress, unsigned long length, bool sync, bool header, bool subHeader, bool userData, bool edcEcc, int c2, int subChannel ) const; bool read10( unsigned char* data, unsigned int dataLen, unsigned long startAdress, unsigned int length, bool fua = false ) const; bool read12( unsigned char* data, unsigned int dataLen, unsigned long startAdress, unsigned long length, bool streaming = false, bool fua = false ) const; /** * @param subchannelParam: 01h - CD current position * 02h - Media Catalog number (UPC/bar code) * 03h - ISRC * @param trackNumber only valid if subchannelParam == 03h */ bool readSubChannel( unsigned char** data, unsigned int& dataLen, unsigned int subchannelParam, unsigned int trackNumber ) const; bool readIsrc( unsigned int track, TQCString& isrc ) const; bool readMcn( TQCString& mcn ) const; /** * MMC command Read Buffer Capacity * * \return \see K3bScsiCommand::transport() */ int readBufferCapacity( long long& bufferLength, long long& bufferAvail ) const; /** * @returns the index number on success * -1 on general error * and -2 if there is no index info in that frame */ int getIndex( unsigned long lba ) const; bool searchIndex0( unsigned long startSec, unsigned long endSec, long& pregapStart ) const; /** * For now this just searches index 0 for all tracks and sets * the value in the tracks. * In the future this should scan for all indices. */ bool indexScan( K3bDevice::Toc& toc ) const; /** * Seek to the specified sector. */ bool seek( unsigned long lba ) const; bool getNextWritableAdress( unsigned int& lastSessionStart, unsigned int& nextWritableAdress ) const; /** * Retrieve the next writable address from the currently mounted writable medium. * \return The next writable address if the medium is empty or appendable or -1 * if an error occured. */ int nextWritableAddress() const; /** * Locks the device for usage. This means that no MMC command can be performed * until usageUnlock is called. * * Locking a device is useful when an external application or library is called * that opens the device itself. * * \sa usageUnlock */ void usageLock() const; /** * Unlock the device after a call to usageLock. */ void usageUnlock() const; /** * Thread-safe ioctl call for this device for Linux and Net-BSD systems. * Be aware that so far this does not include opening the device */ // int ioctl( int request, ... ) const; protected: bool furtherInit(); #ifdef Q_OS_LINUX /** * Fallback method that uses the evil cdrom.h stuff */ bool readTocLinux( Toc& ) const; #endif /** * The preferred toc reading method for all CDs. Also reads session info. * undefined for DVDs. */ bool readRawToc( Toc& ) const; bool readFormattedToc( Toc&, int mediaType ) const; /** * Fixes the last block on CD-Extra disks. This is needed if the readRawToc failed since * in that case the first sector of the last session's first track is used as the previous * session's last track's last sector which is wrong. There is a 11400 block session lead-in * between them. This method fixes this only for the last session and only on linux. */ bool fixupToc( Toc& ) const; private: /** * A Device can only be constructed the the DeviceManager. */ Device( const TQString& devname ); /** * Determines the device's capabilities. This needs to be called once before * using the device. * * Should only be used by the DeviceManager. * * @param checkWritingModes if true the CD writing modes will be checked using * MMC_MODE_SELECT. */ bool init( bool checkWritingModes = true ); void searchIndexTransitions( long start, long end, K3bDevice::Track& track ) const; void checkWritingModes(); void checkFeatures(); void checkForJustLink(); void checkFor2AFeatures(); void checkForAncientWriters(); /** * Internal method which checks if the raw toc data has bcd values or hex. * @return 0 if hex, 1 if bcd, -1 if none */ int rawTocDataWithBcdValues( unsigned char* data, unsigned int dataLen ) const; bool getSupportedWriteSpeedsVia2A( TQValueList& list, bool dvd ) const; bool getSupportedWriteSpeedsViaGP( TQValueList& list, bool dvd ) const; TQCString mediaId( int mediaType ) const; TQString m_vendor; TQString m_description; TQString m_version; TQString m_cdrdaoDriver; int m_cdTextCapable; int m_maxReadSpeed; int m_maxWriteSpeed; int m_currentWriteSpeed; bool m_dvdMinusTestwrite; // only needed for scsi devices int m_bus; int m_target; int m_lun; int m_bufferSize; int m_writeModes; // only needed on FreeBSD TQString m_passDevice; TQString m_blockDevice; TQString m_genericDevice; class Private; Private* d; friend class DeviceManager; }; #if defined(Q_OS_LINUX) || defined(Q_OS_NETBSD) /** * This should always be used to open a device since it * uses the resmgr * * @internal */ int openDevice( const char* name, bool write = false ); #endif } #endif