diff --git a/libburn/trunk/doc/libdax_model.txt b/libburn/trunk/doc/libdax_model.txt index 52a72e23..570a02b0 100644 --- a/libburn/trunk/doc/libdax_model.txt +++ b/libburn/trunk/doc/libdax_model.txt @@ -4,6 +4,11 @@ # class interconnections in the notation of my C stub generator CgeN # (see also end of this text) +# next : transport.h : struct burn_format_descr + +# Open questions: +# - how to connect to GESTURES ? Globally ? + Model=libdax @@ -19,7 +24,7 @@ which it reflects and augments by its own architectural concepts. Subordinates=EQUIP,JOB,AUX Cgen=\ cevapi --r -m struct CevapeqP *equip +-r -m struct CevapequiP *equip -r -m struct CevapjoB *job -r -m struct CevapauX *aux -r -m struct CevapgestureS *gestures @@ -36,9 +41,10 @@ This includes the system, drives, media, and their current states. PeerToPeer=GESTURES Boss=API Cgen=\ -cevapeqp +cevapequip -r -v struct CevapI *boss -r -m struct CevapsysteM *sys +-v struct CevapgestureS *gestures @ =end Class @@ -55,7 +61,10 @@ Cgen=\ cevapjob -r -v struct CevapI *boss -r -m struct CevaptodO *todo +-v struct CevapgestureS *gestures + # >>> + @ =end Class @@ -71,7 +80,10 @@ Boss=API Cgen=\ cevapaux -r -v struct CevapI *boss +-v struct CevapgestureS *gestures + # >>> + @ =end Class @@ -87,7 +99,13 @@ Subordinates=SCSI_CMD Cgen=\ cevapgestures -r -v struct CevapI *boss +-v struct CevapequiP *equip +-v struct CevapjoB *job +-v struct CevapauX *aux +-r -m struct CevapscmD *scsi_cmd + # >>> + @ =end Class @@ -101,6 +119,14 @@ This layer models each SCSI command that is used by libdax. It knows about its parameters and constraints with particular equipment and jobs. Boss=GESTURES Subordinates=Classes with SCSI_EXEC Interface +Cgen=\ +cevapscmd +-r -v struct CevapgestureS *boss +-r -m struct CevapsexeC *scsi_exec + +# >>> + +@ =end Class Interface=SCSI_EXEC @@ -114,10 +140,13 @@ Boss=SCSI_CMD Implementations=SCSI_FORMAT,SCSI_SERVICE Cgen=\ cevapsexec +-r -v struct CevapscmD *boss -p -v struct CevapsforM *scsi_format -p -v struct CevapsservicE *scsi_service -v int silent_on_scsi_error + # >>> + @ =end Interface @@ -134,7 +163,19 @@ Cgen=\ cevapsform -r -v struct CevapsexeC *boss -p -v struct CevapstransP *scsi_transport + +# former struct command +-v unsigned char opcode[16] +-v int oplen +-v int dir +-v int dxfer_len +-v unsigned char sense[128] +-v int error +-v int retry +-v struct CevapbuffeR *page + # >>> + @ =end Class @@ -196,12 +237,12 @@ Boss=EQUIP Subordinates=EquipDrive*N Cgen=\ cevapsystem --r -v struct CevapeqP *boss +-r -v struct CevapequiP *boss -r -m char *infotext -r -l struct CevapdrivE *drive -p -v struct CevapdrivE *eol_drive -# >>> be boss of SCSI_CMD ? +# >>> be boss of SCSI_CMD ? (Rather than GESTURES) # >>> @ @@ -220,23 +261,36 @@ Boss=EquipSystem Cgen=\ -l cevapdrive -r -v struct CevapsysteM *boss + +# Drive number -r -v int global_index + +# The persistent system drive address -r -m char *devname + +# Traditional SCSI address parameters (-1 if not applicable) -r -v int bus_no -r -v int host -r -v int id -r -v int channel -r -v int lun + # (ex struct burn_scsi_inquiry_data) -r -v char idata_vendor[9] -r -v char idata_product[17] -r -v char idata_evision[5] -r -v int idata_valid + +# mc5r03c.pdf 5.3.2 Physical Interface Standard +# 1=SCSI, 2=ATAPI, 3,4,6=FireWire, 7=SATA, 8=USB -r -v int phys_if_std +# MMC-5 5.3.2 table 91 , e.g. "SCSI Family" -r -m char *phys_if_name --p -v struct CevapsexeC *BURN_OS_TRANSPORT_DRIVE_ELEMENTS + +# -r -v int block_types[4] -# (ex struct scsi_mode_data) + +# (former struct scsi_mode_data) -p -v int mdata_buffer_size -p -v int mdata_dvdram_read -p -v int mdata_dvdram_write @@ -251,6 +305,13 @@ Cgen=\ -p -v int mdata_max_read_speed -p -v int mdata_max_write_speed -p -v int madata_min_write_speed + +# Results from ACh GET PERFORMANCE, Type 03h +# (Speed values go into *_*_speed) +# speed_descriptors became cevapperf which is under cevapmedia +-p -v int min_end_lba +-p -v int max_end_lba + -p -v int mdata_cur_read_speed -p -v int mdata_cur_write_speed -p -v int mdata_retry_page_length @@ -260,13 +321,20 @@ Cgen=\ -p -v int mdata_c2_pointers -r -v int mdata_underrun_proof -p -v int mdata_valid + # >>> How to handle this by cgen ? : -v pthread_mutex_t access_lock + +# Flags from feature 002Fh feature descriptor mmc5r03c.pdf 5.3.25 : +# bit1= DVD-RW supported +# bit2= Test Write available +# bit3= DVD-R DL supported +# bit6= Buffer Under-run Free recording available (page 05h BUFE) +# Value -1 indicates that no 002Fh was current in the features list. -r -v int current_feat2fh_byte4 + -v volatile int released -v struct CevapbuffeR *buffer -# >>> next to process: transport.h : struct burn_toc_entry *toc_entry; - # >>> transport.h : toc_temp (what is this ? It belongs to BURN_WRITE_RAW) # >>> @@ -288,24 +356,49 @@ Boss=EquipDrive Cgen=\ cevapmedia -r -v struct CevapdrivE *boss + -r -m struct CevapstatuS *status + -r -l struct CevapprofilE *profile -p -v struct CevapprofilE *eol_profile + +# MMC-to-MMC feature info from 46h for DVD-RW. +# Quite internal. Regard as opaque :) +# 1 = incremental recording available, 0 = not available -r -v int current_has_feat21h + +# Link Size item number 0 from feature 0021h descriptor -r -v int current_feat21h_link_size + +# Wether a DVD-RW media holds an incomplete session +# (which could need closing after write) -v int needs_close_session + +# From 51h READ DISC INFORMATION +# 0=needs format start, 1=needs format restart -r -v int bg_format_status + +# From 23h READ FORMAT CAPACITY mmc5r03c.pdf 6.24 +# 1=unformatted, 2=formatted, 3=unclear -r -v int format_descr_type +# meaning depends on format_descr_type -r -v off_t format_curr_max_size +# dito -r -v unsigned int format_curr_blsas -r -v int best_format_type -r -v off_t best_format_size -r -l struct CevapformaT *format_descriptor -p -v struct CevapformaT *eol_format_descriptor + -r -v int nwa -r -v int start_lba -r -v int end_lba -r -m struct CevapmcapS *multicaps + +# Results from ACh GET PERFORMANCE, Type 03h +# (Speed values go into drive.mdata_*_*_speed) +-r -l struct CevapperF *speed_descriptor +-p -v struct CevapperF *eol_speed_descriptor # >>> @ =end Class @@ -330,7 +423,9 @@ Cgen=\ -r -v int is_supported_profile -r -l struct CevapfeaturE *feature -p -v struct CevapfeaturE *eol_feature + # >>> + @ =end Class @@ -345,7 +440,9 @@ Boss=EquipProfile Cgen=\ -l cevapfeature -r -v struct CevapprofilE *boss + # >>> + @ =end Class @@ -354,12 +451,24 @@ Author=Thomas Schmitt Version=1.0 Since= Documentation=\ ->>> EquipFormat +EquipFormat represents a single Formattable Capacity Descriptor +as of mmc5r03c.pdf 6.24.3.3 . Boss=EquipMedia Cgen=\ -l cevapformat -r -v struct CevapmediA *boss + +# format type: e.g 0x00 is "Full", 0x15 is "Quick" +-r -v int type + +# the size in bytes derived from Number of Blocks +-r -v off_t size + +# the Type Dependent Parameter (usually the write alignment size) +-r -v unsigned int tdp + # >>> + @ =end Class @@ -373,7 +482,9 @@ Boss=EquipMedia Cgen=\ -l cevapperf -r -v struct CevapmediA *boss + # >>> + @ =end Class @@ -392,12 +503,26 @@ cevapstatus -m char *status_text -v volatile int busy -v struct CevapprofilE *current_profile +-v int erasable + +# From 51h READ DISC INFORMATION Number of Sessions (-1) -v int complete_sessions + +# From 51h READ DISC INFORMATION Last Track Number in Last Session -v int last_track_no + +# From various sources : free space on media (in bytes) +# With CD this might change after particular write +# parameters have been set and nwa has been inquired. -v off_t media_capacity_remaining + +# if > 0 : first lba on media that is too high for write -v int media_lba_limit + -v struct CevapprogresS *progress + # >>> + @ =end Class @@ -413,7 +538,9 @@ Boss=EquipMedia Cgen=\ cevapmcaps -r -m struct CevapdisC *disc + # >>> + @ =end Class @@ -434,11 +561,11 @@ Cgen=\ -v unsigned char min -v unsigned char sec -v unsigned char frame -# + -v int pmin -v int psec -v int pframe -# + -v int start_lba -v int track_blocks @ @@ -462,7 +589,9 @@ Subordinates=JobDisc,JobOptions Cgen=\ cevaptodo -v volatile int cancel + # >>> + @ =end Class @@ -481,7 +610,9 @@ cevapdisc -r -v struct CevapsessioN *eol_session -l struct CevaptociteM *toc_entry -r -v struct CevaptociteM *eol_toc_entry + # >>> take over services of struct burn_disc + @ =end Class @@ -505,6 +636,7 @@ Cgen=\ -r -v struct CevaptracK *eol_track # >>> + @ =end Class @@ -521,7 +653,9 @@ Boss=JobSession Cgen=\ -l cevaptrack -r -v struct CevapsessioN *boss + # >>> + @ =end Class @@ -538,7 +672,9 @@ Cgen=\ cevapblock -v int alba -v int rlba + # >>> + @ =end Class @@ -593,14 +729,19 @@ underrun protection, random access addressing. Boss=JobTodo Cgen=\ cevapjobopts + # >>> + +# Keeping an eye on the drive buffer -v int wait_for_buffer_free -v unsigned int wfb_min_usec -v unsigned int wfb_max_usec -v unsigned int wfb_timeout_sec -v unsigned int wfb_min_percent -v unsigned int wfb_max_percent + # >>> -m struct params params (used by disabled read cd funtionality) + @ =end Class @@ -613,7 +754,9 @@ JobBuffer is an intermediate storage for the content of several JobBlock or JobSourceBlock. Cgen=\ cevapbuffer -# >>> +-r -m unsigned char *data +-v int sectors +-v int bytes @ =end Class @@ -625,6 +768,8 @@ Documentation=\ JobProgress reflects the state and parts of the history of a job Cgen=\ cevapprogress + +# Keeping an eye on the drive buffer -v int nominal_write_speed -v off_t pessimistic_buffer_free -v int pbf_altered @@ -648,6 +793,14 @@ Documentation=\ =end ClassDiagram=Equip_overview + +ClassDiagram=Gestures_overview + +# >>> + +=end ClassDiagram=Gestures_overview + + # >>> a dummy to be integrated into the model Cgen=\ burn_os_transport_drive_elements @@ -713,10 +866,9 @@ break done ---------------------------------------------------------------------------- - - Description of CgeN + cgen produces a class stub in C programming language. The data structure of the class is described by some lines which get read from stdin. The stub will consist of two files .h and .c which emerge in the @@ -747,6 +899,47 @@ Command line options declarations. Currently it lists the existence of all class structs. + +Input line format: + +There are two states of input: class level and element level. +Exampes are shown below with class roles and element roles. + +Input starts at class level. A class level line may be one of + +- Comment. A line which begins with '#' is ignored on class level. + +- Empty. A line with no characters is a comment with empty text (i.e. ignored). + +- Class. Options which begin with '-' and finally a word in lowercase letters + which defines the . The classname leads to a struct ClassnamE + and some class methods implemented as C functions _(). + +- End of input. Line "@@@" or EOF at stdin end the program run. + +After a class line, input switches to element level where a line may be: + +- Comment. A line which after some white space begins with '#' is considered + a comment. The preceeding white space is ignored and the text after '#' is + eventuellay trimmed by a single blank at both ends. This text will be part + of the class struct definition within file .h as a single + C comment line /* ... */. The sequence of elements and comments is preserved. + An empty comment text leads to an empty line in .h. + +- Empty. A line with no characters is a comment with empty text. + +- Element. Options which begin with '-', eventual C keywords "unsigned" or + "volatile", type or "struct ", element name. This leads to a struct + element which is taken into respect in some class methods. Depending on the + options in this line, some element methods __() + may get generated. + +- End of class. A single '@' marks the end of the element list and brings + input back to class level. I.e. next is expected another class name or + "@@@" or EOF at stdin. + +Input semantics: + A class can have one of two roles: - Standalone class. @@ -764,13 +957,24 @@ A class can have one of two roles: Input example: -l my_class -A modifier is defined for listable classes: -- Bossless listable. cgen will not warn if the first element is not - struct *boss - and will not include a parameter *boss into the constructor. I.e. it will - look like the constructor of non-listable classes: +A modifier is defined for classes: + +- Bossless. Disables a special boss-subordinate relationship which is created + if the first element of a class is a struct pointer with the name "boss". + Like + -l + -v struct Some_clasS *boss + Normally such a parameter *boss becomes part of the constructor method + _new(struct **o, struct Some_clasS *boss, int flag); + This relationship is typical for a listable class and a single class which + is designed to host instances of that listable class. Therefore one gets a + warning if a listable class does not begin with a struct pointer *boss. + But if -b is given, then CgeN ill not include a parameter *boss into the + constructor. It will rather look normal: _new(struct **o, int flag); + It will not warn if the first element of a listable class is not struct + pointer *boss. Elements have one of the following roles: @@ -825,7 +1029,7 @@ method _set__set() can be controled by two modifiers: - Bossless listable. This marks elements which are listable objects but do not expect a boss pointer in their constructor. See above: Listable class and - the bossless listable modifier for classes. + the bossless modifier for classes. Input example -b -l struct XyZ *list -v struct XyZ *last_in_list