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- ATAPICDD - ATAPI CD Driver for DOS
- Written by Kenneth J. Davis <jeremyd@computer.org>, 2001-2003
- Released to public domain [ U.S. Definition ]
-
- Current version is 0.2.0 ALPHA
- Version # = major.minor.developement (0 for dev == released version)
-
- ATAPI code based on public domain C code from Hale Landis' ATADRVR
-
- Use at own risk, author assumes no liability nor responsibility
- for use, misuse, lack of use, or anything else as a result
- of this program. No warranty or other implied nor given.
-
- While use and distribution (even by commercial entities) is
- encouraged, I (KJD) will not assume any responsibility for this
- driver's use. Should your local laws not permit this disclaimer,
- or would otherwise still allow me to be held responsible, then you
- may not use this driver. Other persons or entities may provide
- a warranty or other if so desired and stated or implied by
- method of recieving this driver; I am not affiliated with them.
-
- Please send bug reports to me so that they may hopefully be fixed.
- If possible please include your contact information (email address)
- so I may ask you further details or to verify it as fixed.
- Fixes will be supplied as my time permits.
-
- USAGE:
- Load device driver from CONFIG.SYS (or dynamic device loader such as DEVLOAD)
- device=[drive][path]ATAPICDD.SYS <options>
-
- device= standard method of loading a device in CONFIG.SYS
- [drive][path] drive and/or path to device driver file
- ATAPICDD.SYS the driver itself, if renamed use appropriate filename
- <options> supported command line options, /D, /N, /K, and /C
- Options are processed left to right, with rightmost one overriding any before it
- invalid options will be silently ignored (and may screw up rest of processing)
- Only /D and /N are specified by CDEX document, the remaining are extensions
- and subject to change in future revisions (to avoid conflicts with existing practice)
- /D:<name>
- - will set the device name field (DOS device) to <name>
- - default is 'FDCD0000'
- - if <name> is less than 8 characters then space ' ' padded on right to 8 bytes
- - if <name> is more than 8 characters, the rest are ignored
- /N:#
- - specifies to look for # devices
- - default is 1 (as per spec)
- - maximum value is 8 (up to MAX_CONTROLLERS*2 are supported), higher values are ok
- - a value of 0 indicates search for maximum devices
- - # is a single HEX digit, remaining characters are ignored
- /K:#
- - specifies to ignore controller #
- - # is the index into the controller table, which normally refers to IDE 0,1,2,3
- - # is a single HEX digit, remaining characters are ignored
- - if # refers to a value < 0 or >= MAX_CONTROLLERS it is ignored
- /C:#,<baseIO> [ TODO ]
- - overrides default value of base I/O address of controller #
- - # see /K for description of # (controller index)
- - , is required separator, as future revisions may expand # to larger than nibble
- - <baseIO> is HEX base I/O port address, e.g. 1F0
- - Default locations to look for ATA/ATAPI devices:
- controller(#) baseI/Oaddress
- primary (0) 0x1F0
- secondary (1) 0x170
- tertiary (2) 0x1E8
- quaternary(3) 0x168
- /I [ reserved for future change interrupt # ]
-
-
- EXAMPLES:
- Load driver with all default values, look on all 4 standard controller locations
- for devices, stop search after finding 1 device, and use device name of FDCD0000
- device=ATAPICDD.SYS
-
- Load driver but only check 2 primary controller locations
- device=ATAPICDD.SYS /K:2 /K:3
-
- Load driver specifying device name of ATAPICDD and search for all
- available (and supported) devices
- device=ATAPICDD.SYS /D:ATAPICDD /N:0
-
- Load driver looking for 2 devices, but one of the devices is on the
- primary controller and the other is on a secondary controller with a different
- base I/O port address of 0xABC (note: we can use 1,2,or 3 as # to /C
- since there is no device on any of them, but using 1 prevents unnecessary searching)
- device=ATAPICDD.SYS /C:1,ABC /N:2
-
- Load driver but search on secondary controller before primary
- device=ATAPICDD.SYS /C:0,170 /C:1,1F0
-
- Load driver with options that result in default behaviour, notice how rightmost
- option overrides earlier one
- device=ATAPICDD.SYS /C:0,170 /C:0,1F0
-
- Load driver, explicitly setting same options as default
- device=ATAPICDD.SYS /D:FDCD0000 /N:1 /C:0,1F0 /C:1,170 /C2:1E8 /C3:168
-
-
- NOTES:
- This is an early release, not intended for public distribution.
- It may contain debug or experimental code. Note the link specified
- below is intended to be the permanent home (i.e. where you can
- link and tell others to find it).
-
- Requires at least a 80186, though only tested on a 486 and higher.
- Presently only works in PIO mode, though future work will add
- DMA modes. Also only implements minimal functions necessary for
- data transfers. Future releases will add audio play/stop support.
- Should support up to 8 drives, but primarily tested with only
- 1 CD-ROM drive and occasionally on a system with 2 CD-ROM drives.
- Personally works for me on a 486/CD-ROM, 586/DVD-ROM, and a
- PentiumII/DVD-ROM system.
-
-
- Latest version of driver may be found at:
- http://www.darklogic.org/fdos/projects/atapicdd/
-
- This document also public domain.
- 20030621
-