2713 lines
86 KiB
C
2713 lines
86 KiB
C
/*matcd.c--------------------------------------------------------------------
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Matsushita(Panasonic) / Creative CD-ROM Driver (matcd)
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Authored by Frank Durda IV
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Copyright 1994, 1995 Frank Durda IV. All rights reserved.
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"FDIV" is a trademark of Frank Durda IV.
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Redistribution and use in source and binary forms, with or
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without modification, are permitted provided that the following
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conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice positioned at the very beginning of this file without
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modification, all copyright strings, all related programming
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codes that display the copyright strings, this list of
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conditions and the following disclaimer.
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2. Redistributions in binary form must contain all copyright strings
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and related programming code that display the copyright strings.
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3. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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4. All advertising materials mentioning features or use of this
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software must display the following acknowledgement:
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"The Matsushita/Panasonic CD-ROM driver was developed
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by Frank Durda IV for use with "FreeBSD" and similar
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operating systems."
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"Similar operating systems" includes mainly non-profit oriented
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systems for research and education, including but not restricted
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to "NetBSD", "386BSD", and "Mach" (by CMU). The wording of the
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acknowledgement (in electronic form or printed text) may not be
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changed without permission from the author.
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5. Absolutely no warranty of function, fitness or purpose is made
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by the author Frank Durda IV.
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6. Neither the name of the author nor the name "FreeBSD" may
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be used to endorse or promote products derived from this software
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without specific prior written permission.
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(The author can be reached at bsdmail@nemesis.lonestar.org)
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7. The product containing this software must meet all of these
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conditions even if it is unsupported, not a complete system
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and/or does not contain compiled code.
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8. These conditions will be in force for the full life of the
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copyright.
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9. If all the above conditions are met, modifications to other
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parts of this file may be freely made, although any person
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or persons making changes do not receive the right to add their
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name or names to the copyright strings and notices in this
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software. Persons making changes are encouraged to insert edit
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history in matcd.c and to put your name and details of the
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change there.
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10. You must have prior written permission from the author to
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deviate from these terms.
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Vendors who produce product(s) containing this code are encouraged
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(but not required) to provide copies of the finished product(s) to
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the author and to correspond with the author about development
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activity relating to this code. Donations of development hardware
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and/or software are also welcome. (This is one of the faster ways
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to get a driver developed for a device.)
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THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER(S) BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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-----------------------------------------------------------------------------
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Dedicated to: My family, my Grandfather,
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and Max, my Golden Retriever
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Thanks to: Jordan Hubbard (jkh) for getting me ramped-up to 2.x system
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quickly enough to make the 2.1 release. He put up with
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plenty of silly questions and might get the post of
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ambassador some day.
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and The people who donated equipment and other material to make
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development of this driver possible. Donations and
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sponsors for projects are appreciated.
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-----No changes are allowed above this line------------------------------------
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Edit History - (should be in sync with any source control log entries)
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Never seen one of these before? Ok, here is how it works.
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Every time you change the code, you increment the edit number,
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that number over there in the <%d> and in the (%d) in the
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version string. You never set this number lower than it is.
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Near, or preferably on lines that change, insert the edit
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number. If there is a number there already, you can replace it
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with a newer one. This makes searches for code changes very fast.
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In the edit history, start with the edit number, and a good
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description of what changes were made. Then follow it with
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the date, your name and an EMAIL address where you can be reached.
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Please follow this practice; it helps leave understandable code in
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your wake.
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FYI, you have major and minor release codes. Major releases numbered
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1 thru n. Major feature additions should get a new major release
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number. Minor releases start with a null and then letters
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A thru Z. So 3A(456) is Major release 3, Minor release 1,
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Edit 456 (in Microsoft-ese that would be 03.01.456), and 5(731)
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is Major release 5, Minor release 0, Edit 731. Typically only the
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author will change the major and minor release codes in small
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projects.
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EDIT edit Edit HISTORY history History
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<1> This initial version is to get basic filesystem I/O working
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using the SoundBlaster 16 interface. The stand-alone adapter
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card doesn't work yet.
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December 1994 Frank Durda IV bsdmail@nemesis.lonestar.org
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<2> Corrections to resolve a race condition when multiple drives
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on the same controller was active. Fixed drive 1 & 2 swap
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problem. See selectdrive().
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21-Jan-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<3> Added automatic probing and support for all Creative Labs sound
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cards with the Creative/Panasonic interface and the stand-alone
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interface adapters. See AUTOHUNT and FULLCONFIG conditionals
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for more information.
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21-Jan-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<4> Rebundled debug conditionals.
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14-Feb-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<5> Changes needed to work on FreeBSD 2.1. Also added draincmd
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since some conditions cause the drive to produce surprise data.
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See setmode and draincmd
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19-Feb-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<6> Got rid of some redundant error code by creating chk_error().
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Also built a nice generic bus-lock function.
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20-Feb-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<7> Improved comments, general structuring.
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Fixed a problem with disc eject not working if LOCKDRIVE was set.
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Apparently the drive will reject an EJECT command if the drive
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is LOCKED.
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21-Feb-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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Edit number code marking begins here - earlier edits were during development.
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<8> Final device name selected and actually made to compile under
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>2.0. For newer systems, it is "matcd", for older it is "mat".
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24-Feb-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<9> Added some additional disk-related ioctl functions that didn't
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make it into earlier versions.
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26-Feb-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<10> Updated some conditionals so the code will compile under
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1.1.5.1, although this is not the supported platform.
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Also found that some other devices probe code was changing the
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settings for the port 0x302 debug board, so added code to set it
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to a sane state before we use it.
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26-Feb-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<11> The Copyright and Use statement has been replaced in all files
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with a new version.
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1-Mar-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<12> Added ioctls having to do with audio volume, routing and playback
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speed. Also added some code I think is for dynamic loading.
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12-Mar-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<13> Added ioctls to return TOC headers and entries.
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19-Mar-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<14> More ioctls to finish out general audio support and some clean-up.
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Also fixed a bug in open where CD label information would not
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always be cleared after a disc change.
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Added a check to block attempts to resume audio if already playing.
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The resulting sound is a cross between Kryten and Max Headroom.
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But, if you *want* this "feature", enable #define KRYTEN
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in options.h.
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So it is not BSD-ish enough, eh? What, too many comments? :-)
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21-Mar-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<15> LOCKDRIVE has been modified so that a new series of minor
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numbers are created. When these are opened, the selected
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drive will have its door locked and the device must be completely
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closed to unlock the media. The EJECT ioctl will be refused
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when the drive is locked this way. This is useful for
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servers and other places where the media needs to remain in the
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drive. Bit 7 of the minor number controls locking.
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As of this edit, the code compiles with no warnings with -Wall set.
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22-Mar-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<16> Added a new check in the probe code that looks for the drive
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interface being in an idle state after issuing a reset. If this
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isn't the case, then the device at this location isn't a
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Matsushita CD-ROM drive. This will prevent hangs in draincmd later.
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Added the tray close ioctl. This required modifications to open
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to allow the character devices to be "partially" opened so that
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the close ioctl could be issued when the open would otherwise fail.
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Close also delays slightly after completing because the drive
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doesn't update its disc and media status instantly.
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Also created the capability ioctl that lets an application find out
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up front what things a drive can do.
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Fixed a global spelling error.
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Changed matcddriver structure to simply say "matcd". The original
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string "matcd interface " broke the kernel -c boot mechanism.
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Updated the #includes in response to a complaint in first release.
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Updated and tested conditionals so that driver will still compile
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under FreeBSD 1.1.5.1 as well as 2.0 and early 2.1.
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4-Apr-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<17> The function matcd_toc_entries which is executed in response to
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the CDIOREADTOCENTRYS ioctl didn't cope with programs that only
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requested part of the TOC. This change is based on code submitted
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by Doug Robson (dfr@render.com).
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(This change was introduced out of order and exists in FreeBSD
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2.0.5 without the version stamp being updated. I.N.M.F.)
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1-Jun-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<18> While working on the TEAC CD-ROM driver (teaccd) that is reusing
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chunks of code from this driver, I discovered several functions,
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arrays and other things that should have been declared 'static'.
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These changes are necessary if the TEAC CD-ROM driver is to be
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present at the same time as matcd.
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Also fixed the residual buss vs bus symbols and strings.
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There are no functional code changes in this edit.
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2-May-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<19> Creative has changed the Status port slightly in their
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sound boards based on the Vibra-16 (and probably the Vibra-16S)
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chipset. This change masks some unused bits that were formally
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on all the time and are doing different things in this design.
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The changes are transparent to all other supported boards.
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20-Jun-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<20> Code was added to detect non-Creative (SoundBlaster) host
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interfaces, and the driver will switch to code compatible with the
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detected host interface. This should add support for MediaVision,
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IBM, Reveal, and other compatible adapters with split
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data/status-ports. This code allows a mix of SoundBlaster (Type 0)
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and non-SoundBlaster (Type 1) boards in the same system with no
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special configuration.
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I also updated the attach code to display the interface type and
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changed the host interface probe messages to reflect the "c" for
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controller in controller-specific messages as the existing messages
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were confusing when a second card was in place . The kernel -c
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tables have been updated accordingly, so you now have a matcdc%d
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controller to change settings on.
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24-Jun-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<21> Added interface handling code in two of those "this should not
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happen" routines, draincmd and get_stat. Since these routines are
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called by functions during probing that may not know what type
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interface is out there, the code assumes that a given adapter is
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both a type 0 and a type 1 adapter at the same time. Plus,
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this code gets executed once in a very long time so the cost of
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assuming both host adapter types is not significant.
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4-Jul-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<22> Four external interface prototypes were altered by someone else.
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I believe these changes are for making GCC and/or the linker shut-up
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when building some other part of the system since matcd already
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compiles -Wall with no warnings...
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8-Sep-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<23> This change implements the ioctls for preventing media removal
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and allowing media removal.
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Currently, these calls will work according to the following rules:
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No "l" devs opened Any "l" dev open
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CDALLOW accepted always rejected always
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CDPREVENT accepted always accepted always
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One refinement might be to allow CDALLOW/CDPREVENT to always
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work if UID 0 issued the ioctl, but that will wait for later.
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I also made a change to the information that the toc_entry code
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returns so that xcdplayer won't malfunction. (It would not play
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the last track on a non-mixed mode audio CD.) Unlike cdplayer,
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xcdplayer asks for track information one track at a time, and
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calls for information on the lead-out track by its official
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number (0xaa), rather than referring to the "after last" (n+1) track
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as cdplayer does. Anyway, this change should make both players
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happy.
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16-Sep-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<24> In Edit 15 when the extra devs were created for selective locking,
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the door locking was broken if a non-locking dev on the drive is
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closed. The problem was caused by not tracking locked devs and
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non-locking devs as being different partitions. The change is to
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simply use the locking dev bit to flag a set of shadow partitions
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when it comes to lock operations. All other operations treat the
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locked and unlocked partitions as being identical.
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18-Sep-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<25> During work on Edit 23, I noted that on slow and very busy systems,
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sometimes the driver would go to sleep forever. The problem appears
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to have been a race condition caused by doing separate timeout/sleep
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calls without using SPL first. The change here is to use tsleep
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which provides the equivalent of timeout/sleep timeout/tsleep if the
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last paremeter is tsleep is set to the time value that would have been
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given to timeout.
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I also fixed some duplicate location strings in the tsleep calls.
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24-Sep-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<26> Moved a function declaration that generated two warnings with
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the FULLCONFIG/FULLDRIVER conditionals disabled.
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Updated the igot function so that it correctly reports limited
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functions when a sub-set driver is compiled.
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Eliminated FULLCONFIG conditional and now set controller counts
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based on the NMATCD #define produced by the config process.
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Also, disable the audio-related ioctls based on the BOOTMFS
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conditional to help make the boot floppy kernel smaller.
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18-Oct-95 Frank Durda IV bsdmail@nemesis.lonestar.org
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<27> Incorporated changes needed to move the cdevsw and bdevsw
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entries into the drivers (including this one). Also
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include a quick first pass cut at DEVFS suppport. (removed later)
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---------------------------------------------------------------------------*/
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/*Match this format: Version_dc(d)__dd-mmm-yy */
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static char MATCDVERSION[]="Version 1(26) 18-Oct-95";
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/* The following strings may not be changed*/
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static char MATCDCOPYRIGHT[] = "Matsushita CD-ROM driver, Copr. 1994,1995 Frank Durda IV";
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/* The proceeding strings may not be changed*/
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/* $FreeBSD$ */
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/*---------------------------------------------------------------------------
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Include declarations
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---------------------------------------------------------------------------*/
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#include "matcd.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bio.h>
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#include <sys/cdio.h>
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#include <sys/disklabel.h>
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#include <sys/fcntl.h>
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#include "i386/isa/matcd/options.h" /*Conditional compile options
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and probe port hints*/
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#include "i386/isa/matcd/matcddrv.h" /*Drive-related defs & strings*/
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#include "i386/isa/matcd/creative.h" /*Host interface related defs*/
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <i386/isa/isa_device.h>
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#ifndef COMPAT_OLDISA
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#error "The matcd device requires the old isa compatibility shims"
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#endif
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/*---------------------------------------------------------------------------
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Defines and structures
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---------------------------------------------------------------------------*/
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#define DRIVESPERC 4 /*This is a constant*/
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#define TOTALDRIVES NUMCTRLRS*DRIVESPERC /*Max possible drives*/
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#define TICKRES 10 /*Our coarse timer resolution*/
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#define ISABUSKHZ 8330 /*Number of IN/OUT ISA/sec*/
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#define MAXTRKS 101 /*Maximum possible tracks*/
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#define RAW_DEVICE 46 /*<16>Dev number for raw device*/
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#define MATCDBLK 2048 /*Standard block size*/
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#define MATCDRBLK 2352 /*Raw and/or DA block size*/
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#define MATCD_RETRYS 5 /*Number of retries for read ops*/
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#define MATCD_READ_1 0x80 /*Read state machine defines*/
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#define MATCD_READ_2 0x90 /*Read state machine defines*/
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struct matcd_volinfo {
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unsigned char type; /*00 CD-DA or CD-ROM
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10 CD-I
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20 XA */
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unsigned char trk_low; /*Normally 1*/
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unsigned char trk_high; /*Highest track number*/
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unsigned char vol_msf[3]; /*Size of disc in min/sec/frame*/
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};
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struct matcd_mbx {
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short controller;
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short ldrive;
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short partition;
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short port;
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short iftype; /*<20>Host interface type*/
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short retry;
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short nblk;
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int sz;
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u_long skip;
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struct bio *bp;
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int p_offset;
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short count;
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};
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static struct matcd_data {
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short drivemode; /*Last state drive was set to*/
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short flags;
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short status; /*Last audio-related function*/
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int blksize;
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u_long disksize;
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short iobase;
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short iftype; /*<20>Host interface type*/
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struct disklabel dlabel;
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unsigned int partflags[MAXPARTITIONS];
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unsigned int openflags;
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struct matcd_volinfo volinfo;
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struct matcd_mbx mbx;
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u_char patch[2]; /*<12>Last known audio routing*/
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u_char volume[2]; /*<12>Last known volume setting*/
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} matcd_data[TOTALDRIVES];
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/* Bit equates for matcd_data.flags*/
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#define MATCDINIT 0x0001 /*Probe ran on host adapter*/
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#define MATCDLABEL 0x0004 /*Valid TOC exists*/
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#define MATCDLOCK 0x0008 /*<15>Drive door is locked*/
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#define MATCDWARN 0x0020 /*Have reported an open disc change*/
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/* Bit equates for matcd_data.partflags*/
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#define MATCDOPEN 0x0001
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#define MATCDREADRAW 0x0002
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/* Error classes returned by chk_error()*/
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#define ERR_RETRY 1 /*A retry might recover this*/
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#define ERR_INIT 2 /*A retry certainly will get this*/
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#define ERR_FATAL 3 /*This cannot be recovered from*/
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static struct bio_queue_head request_head[NUMCTRLRS]; /*<18>A queue for each host interface*/
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static int nextcontroller=0; /*<18>Number of interface units found*/
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static int drivepresent=0; /*<18>Don't change this - see license*/
|
|
static int iftype; /*<20>Probe/Attach i.f. type relay*/
|
|
|
|
static unsigned char if_state[4]={0,0,0,0}; /*<18>State of the host I/F and bus*/
|
|
|
|
/* Flags in the if_state array
|
|
*/
|
|
|
|
#define BUSBUSY 0x01 /*<18>Bus is already busy*/
|
|
|
|
|
|
struct matcd_read2 {
|
|
unsigned char start_msf[3];
|
|
unsigned char end_msf[3];
|
|
};
|
|
|
|
|
|
/* This mystery structure is supposed to make dynamic driver
|
|
loading possible.
|
|
*/
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
These macros take apart the minor number and yield the
|
|
partition, drive on controller, and controller.
|
|
This must match the settings in /dev/MAKEDEV.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
#define matcd_partition(dev) ((minor(dev)) & 0x07)
|
|
#define matcd_ldrive(dev) (((minor(dev)) & 0x78) >> 3)
|
|
#define matcd_cdrive(dev) (((minor(dev)) & 0x18) >> 3)
|
|
#define matcd_controller(dev) (((minor(dev)) & 0x60) >> 5)
|
|
#ifdef LOCKDRIVE
|
|
#define matcd_lockable(dev) (((minor(dev)) & 0x80) >> 5)
|
|
#endif /*LOCKDRIVE*/
|
|
|
|
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Entry points and other connections to/from kernel - see also conf.h
|
|
--- not any more :)
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcd_probe(struct isa_device *dev);
|
|
static int matcd_attach(struct isa_device *dev);
|
|
struct isa_driver matcddriver={
|
|
INTR_TYPE_BIO,
|
|
matcd_probe,
|
|
matcd_attach,
|
|
"matcd"
|
|
};
|
|
COMPAT_ISA_DRIVER(matcd, matcddriver);
|
|
|
|
|
|
static d_open_t matcdopen;
|
|
static d_close_t matcdclose;
|
|
static d_ioctl_t matcdioctl;
|
|
static d_psize_t matcdsize;
|
|
static d_strategy_t matcdstrategy;
|
|
|
|
#define CDEV_MAJOR 46
|
|
|
|
static struct cdevsw matcd_cdevsw = {
|
|
/* open */ matcdopen,
|
|
/* close */ matcdclose,
|
|
/* read */ physread,
|
|
/* write */ nowrite,
|
|
/* ioctl */ matcdioctl,
|
|
/* poll */ nopoll,
|
|
/* mmap */ nommap,
|
|
/* strategy */ matcdstrategy,
|
|
/* name */ "matcd",
|
|
/* maj */ CDEV_MAJOR,
|
|
/* dump */ nodump,
|
|
/* psize */ nopsize,
|
|
/* flags */ D_DISK,
|
|
};
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Internal function declarations
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static void matcd_start(int controller);
|
|
static void zero_cmd(char *);
|
|
static void matcd_pread(int port, int count, unsigned char * data);
|
|
static int matcd_fastcmd(int port,int ldrive,int cdrive,
|
|
unsigned char * cp);
|
|
static void matcd_slowcmd(int port,int ldrive,int cdrive,
|
|
unsigned char * cp);
|
|
static timeout_t matcd_timeout;
|
|
static void matcd_blockread(int state);
|
|
static void selectdrive(int port,int drive);
|
|
static void doreset(int port,int cdrive);
|
|
static int doprobe(int port,int cdrive);
|
|
static void lockbus(int controller, int ldrive);
|
|
static void unlockbus(int controller, int ldrive);
|
|
static int matcd_volinfo(int ldrive);
|
|
static void draincmd(int port,int cdrive,int ldrive);
|
|
static int get_error(int port, int ldrive, int cdrive);
|
|
static int chk_error(int errnum);
|
|
static int msf_to_blk(unsigned char * cd);
|
|
#ifdef FULLDRIVER
|
|
static int matcd_playtracks(int ldrive, int cdrive, int controller,
|
|
struct ioc_play_track *pt);
|
|
static int matcd_playmsf(int ldrive, int cdrive, int controller,
|
|
struct ioc_play_msf *pt);
|
|
static int matcd_pause(int ldrive, int cdrive, int controller,
|
|
int action);
|
|
static int matcd_stop(int ldrive, int cdrive, int controller);
|
|
static int matcd_level(int ldrive, int cdrive, int controller,
|
|
struct ioc_vol * volume, unsigned long action);
|
|
static int matcd_patch(int ldrive, int cdrive, int controller,
|
|
struct ioc_patch * routing);
|
|
static int matcd_route(int ldrive, int cdrive, int controller,
|
|
unsigned long command);
|
|
static int matcd_pitch(int ldrive, int cdrive, int controller,
|
|
struct ioc_pitch * speed);
|
|
#endif /*FULLDRIVER*/
|
|
static int matcd_toc_header(int ldrive, int cdrive, int controller,
|
|
struct ioc_toc_header * toc);
|
|
static int matcd_toc_entries(int ldrive, int cdrive,
|
|
int controller,
|
|
struct ioc_read_toc_entry *ioc_entry);
|
|
static int matcd_toc_entry(int ldrive, int cdrive,
|
|
int controller,
|
|
struct ioc_read_toc_single_entry *ioc_entry);
|
|
static int matcd_read_subq(int ldrive, int cdrive, int controller,
|
|
struct ioc_read_subchannel * sqp);
|
|
static int matcd_igot(struct ioc_capability * sqp);
|
|
static int waitforit(int timelimit, int state, int port,
|
|
char * where);
|
|
static int get_stat(int port, int ldrive);
|
|
static int media_chk(struct matcd_data *cd,int errnum,
|
|
int ldrive,int test);
|
|
static int matcd_eject(int ldrive, int cdrive, int controller);
|
|
static int matcd_doorclose(int ldrive, int cdrive, int controller);
|
|
static int matcd_dlock(int ldrive, int cdrive,
|
|
int controller, int action);
|
|
static int docmd(char * cmd, int ldrive, int cdrive,
|
|
int controller, int port);
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcdopen - Open the device
|
|
|
|
This routine actually gets called every time anybody opens
|
|
any partition on a drive. But the first call is the one that
|
|
does all the work.
|
|
|
|
<15> If LOCKDRIVE is enabled, additional minor number devices allow
|
|
<15> the drive to be locked while being accessed.
|
|
---------------------------------------------------------------------------*/
|
|
int matcdopen(dev_t dev, int flags, int fmt,
|
|
struct proc *p)
|
|
{
|
|
int cdrive,ldrive,partition,controller,lock;
|
|
struct matcd_data *cd;
|
|
int i,z,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
ldrive=matcd_ldrive(dev);
|
|
cdrive=matcd_cdrive(dev);
|
|
partition=matcd_partition(dev);
|
|
controller=matcd_controller(dev);
|
|
lock=matcd_lockable(dev);
|
|
cd= &matcd_data[ldrive];
|
|
port=cd->iobase; /*and port#*/
|
|
|
|
if (ldrive >= TOTALDRIVES) return(ENXIO);
|
|
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Open: dev %x partition %x controller %x flags %x cdrive %x\n",
|
|
ldrive,(int)dev,partition,controller,cd->flags,
|
|
matcd_cdrive(dev));
|
|
#endif /*DEBUGOPEN*/
|
|
|
|
if (!(cd->flags & MATCDINIT)) { /*Did probe find this drive*/
|
|
return(ENXIO);
|
|
}
|
|
|
|
if (!(cd->flags & MATCDLABEL) &&
|
|
cd->openflags) { /*Has drive completely closed?*/
|
|
return(ENXIO); /*No, all partitions must close*/
|
|
}
|
|
|
|
|
|
/* Now, test to see if the media is ready
|
|
*/
|
|
|
|
lockbus(controller,ldrive);
|
|
zero_cmd(cmd);
|
|
cmd[0]=NOP; /*Test drive*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
i=waitforit(10*TICKRES,DTEN,port,"matopen");
|
|
z=get_stat(port,ldrive); /*Read status byte*/
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d Result of NOP is %x %x\n",ldrive,i,z);
|
|
#endif /*DEBUGOPEN*/
|
|
if ((z & MATCD_ST_DSKIN)==0) { /*Is there a disc in the drive?*/
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: No Disc in open\n",ldrive);
|
|
#endif /*DEBUGOPEN*/
|
|
unlockbus(controller, ldrive); /*Release bus lock*/
|
|
cd->flags &= ~MATCDLABEL; /*<16>Mark label as invalid*/
|
|
if (major(dev)==RAW_DEVICE) { /*<16>Is the char device?*/
|
|
return(0); /*<16>Allow Semi open*/
|
|
}
|
|
else {
|
|
return(ENXIO); /*<16>Normally blow off*/
|
|
}
|
|
}
|
|
if (z & MATCD_ST_ERROR) { /*Was there an error*/
|
|
i=get_error(port,ldrive,cdrive);/*Find out what it was*/
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d NOP Error was %x\n",ldrive,i);
|
|
#endif /*DEBUGOPEN*/
|
|
if (cd->openflags) { /*Any parts open?*/
|
|
if (media_chk(cd,i,ldrive,0)) { /*<14>Was it a disc chg?*/
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Disc change detected i %x z %x\n",
|
|
ldrive,i,z);
|
|
#endif /*DEBUGOPEN*/
|
|
unlockbus(controller, ldrive); /*Release bus lock*/
|
|
return(ENOTTY);
|
|
}
|
|
|
|
} else {
|
|
media_chk(cd,i,ldrive,1);/*<14>Was it a disc chg?*/
|
|
/*<14>Clear volume info*/
|
|
}
|
|
}
|
|
unlockbus(controller, ldrive); /*Release bus lock*/
|
|
|
|
/* Here we fill in the disklabel structure although most is
|
|
hardcoded.
|
|
*/
|
|
|
|
if ((cd->flags & MATCDLABEL)==0) {
|
|
bzero(&cd->dlabel,sizeof(struct disklabel));
|
|
|
|
/* Now we query the drive for the actual size of the media.
|
|
This is where we find out of there is any media or if the
|
|
media isn't a Mode 1 or Mode 2/XA disc.
|
|
See version information about Mode 2/XA support.
|
|
*/
|
|
lockbus(controller,ldrive);
|
|
i=matcdsize(dev);
|
|
unlockbus(controller, ldrive); /*Release bus lock*/
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Bus unlocked in open\n",ldrive);
|
|
#endif /*DEBUGOPEN*/
|
|
if (i < 0) {
|
|
printf("matcd%d: Could not read the disc size\n",ldrive);
|
|
return(ENXIO);
|
|
} /*matcdsize filled in rest of dlabel*/
|
|
|
|
/* Based on the results, fill in the variable entries in the disklabel
|
|
*/
|
|
cd->dlabel.d_secsize=cd->blksize;
|
|
cd->dlabel.d_ncylinders=(cd->disksize/100)+1;
|
|
cd->dlabel.d_secperunit=cd->disksize;
|
|
cd->dlabel.d_partitions[0].p_size=cd->disksize;
|
|
cd->dlabel.d_checksum=dkcksum(&cd->dlabel);
|
|
|
|
|
|
/* Now fill in the hardcoded section
|
|
*/
|
|
/*123456789012345678*/
|
|
strncpy(cd->dlabel.d_typename,"Matsushita CDR ",16);
|
|
strncpy(cd->dlabel.d_packname,"(c) 1994, fdiv ",16);
|
|
cd->dlabel.d_magic=DISKMAGIC;
|
|
cd->dlabel.d_magic2=DISKMAGIC;
|
|
cd->dlabel.d_nsectors=100;
|
|
cd->dlabel.d_secpercyl=100;
|
|
cd->dlabel.d_ntracks=1;
|
|
cd->dlabel.d_interleave=1;
|
|
cd->dlabel.d_rpm=300;
|
|
cd->dlabel.d_npartitions=1; /*See note below*/
|
|
cd->dlabel.d_partitions[0].p_offset=0;
|
|
cd->dlabel.d_partitions[0].p_fstype=9;
|
|
cd->dlabel.d_flags=D_REMOVABLE;
|
|
|
|
/* I originally considered allowing the partition match tracks or
|
|
sessions on the media, but since you are allowed up to 99
|
|
tracks in the RedBook world, this would not fit in with the
|
|
BSD fixed partition count scheme. So ioctls will be used to shift
|
|
the track to be accessed into partition 1.
|
|
*/
|
|
|
|
cd->flags |= MATCDLABEL; /*Mark drive as having TOC*/
|
|
}
|
|
|
|
dev->si_bsize_phys = cd->blksize;
|
|
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d open2: partition=%d disksize=%d blksize=%x flags=%x\n",
|
|
ldrive,partition,(int)cd->disksize,cd->blksize,cd->flags);
|
|
#endif /*DEBUGOPEN*/
|
|
|
|
#ifdef LOCKDRIVE
|
|
if (cd->openflags==0 && lock) {
|
|
zero_cmd(cmd);
|
|
cmd[0]=LOCK; /*Lock drive*/
|
|
cmd[1]=1;
|
|
docmd(cmd,ldrive,cdrive,controller,port);/*<15>Issue cmd*/
|
|
cd->flags |= MATCDLOCK; /*<15>Drive is now locked*/
|
|
}
|
|
#endif /*LOCKDRIVE*/
|
|
cd->openflags |= (1<<(partition+lock));/*<24>Mark partition open*/
|
|
|
|
if (partition==RAW_PART ||
|
|
(partition < cd->dlabel.d_npartitions &&
|
|
cd->dlabel.d_partitions[partition].p_fstype != FS_UNUSED)) {
|
|
cd->partflags[partition] |= MATCDOPEN;
|
|
if (partition == RAW_PART) {
|
|
cd->partflags[partition] |= MATCDREADRAW;
|
|
}
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Open is complete - openflags %x\n",
|
|
ldrive,cd->openflags);
|
|
#endif /*DEBUGOPEN*/
|
|
return(0);
|
|
}
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Open FAILED\n",ldrive);
|
|
#endif /*DEBUGOPEN*/
|
|
return(ENXIO);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcdclose - Close the device
|
|
|
|
Close may not do much other than clear some driver settings.
|
|
Note that audio playback will continue.
|
|
|
|
<15> If you define LOCKDRIVE, and the drive has been opened using
|
|
<15> one of the locking minor numbers, code in close will unlock
|
|
<15> the drive.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcdclose(dev_t dev, int flags, int fmt,
|
|
struct proc *p)
|
|
{
|
|
int ldrive,cdrive,port,partition,controller,lock;
|
|
struct matcd_data *cd;
|
|
#ifdef LOCKDRIVE
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
#endif /*LOCKDRIVE*/
|
|
|
|
ldrive=matcd_ldrive(dev);
|
|
cdrive=matcd_cdrive(dev);
|
|
lock=matcd_lockable(dev);
|
|
cd=matcd_data+ldrive;
|
|
port=cd->iobase; /*and port#*/
|
|
|
|
if (ldrive >= TOTALDRIVES)
|
|
return(ENXIO);
|
|
|
|
partition = matcd_partition(dev);
|
|
controller=matcd_controller(dev);
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Close partition=%d flags %x openflags %x partflags %x\n",
|
|
ldrive,partition,cd->flags,cd->openflags,
|
|
cd->partflags[partition]);
|
|
#endif /*DEBUGOPEN*/
|
|
|
|
if (!(cd->flags & MATCDINIT))
|
|
return(ENXIO);
|
|
|
|
cd->partflags[partition] &= ~(MATCDOPEN|MATCDREADRAW);
|
|
cd->openflags &= ~(1<<(partition+lock));
|
|
if (cd->openflags==0) { /*<24>Really last close?*/
|
|
#ifdef LOCKDRIVE
|
|
if (cd->flags & MATCDLOCK) { /*<24>Was drive locked?*/
|
|
zero_cmd(cmd); /*Yes, so unlock it*/
|
|
cmd[0]=LOCK; /*Unlock drive*/
|
|
docmd(cmd,ldrive,cdrive,controller,port);
|
|
}
|
|
#endif /*LOCKDRIVE*/
|
|
cd->flags &= ~(MATCDWARN|MATCDLOCK);
|
|
/*<15>Clear warning flag*/
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcdstrategy - Accepts I/O requests from kernel for processing
|
|
|
|
This routine accepts a read request block pointer (historically
|
|
but somewhat inaccurately called *bp for buffer pointer).
|
|
Various sanity checks are performed on the request.
|
|
When we are happy with the request and the state of the device,
|
|
the request is added to the queue of requests for the interface
|
|
that the drive is connected to. We support multiple interfaces
|
|
so there are multiple queues. Once the request is added, we
|
|
call the matcd_start routine to start the device in case it isn't
|
|
doing something already. All I/O including ioctl requests
|
|
rely on the current request starting the next one before exiting.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void matcdstrategy(struct bio *bp)
|
|
{
|
|
struct matcd_data *cd;
|
|
int s;
|
|
int ldrive,controller;
|
|
|
|
ldrive=matcd_ldrive(bp->bio_dev);
|
|
controller=matcd_controller(bp->bio_dev);
|
|
cd= &matcd_data[ldrive];
|
|
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Strategy: buf=0x%lx, block#=%ld bcount=%ld\n",
|
|
ldrive,(unsigned long)bp,bp->bio_blkno,bp->bio_bcount);
|
|
#endif /*DEBUGIO*/
|
|
|
|
|
|
if (ldrive >= TOTALDRIVES || bp->bio_blkno < 0) {
|
|
printf("matcd%d: Bogus parameters received - kernel may be corrupted\n",ldrive);
|
|
bp->bio_error=EINVAL;
|
|
goto bad;
|
|
}
|
|
|
|
if (!(cd->flags & MATCDLABEL)) {
|
|
bp->bio_error = EIO;
|
|
goto bad;
|
|
}
|
|
|
|
if (!(bp->bio_cmd == BIO_READ)) {
|
|
bp->bio_error = EROFS;
|
|
goto bad;
|
|
}
|
|
|
|
if (bp->bio_bcount==0) /*Request is zero-length - all done*/
|
|
goto done;
|
|
|
|
if (matcd_partition(bp->bio_dev) != RAW_PART) {
|
|
if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) {
|
|
goto done;
|
|
}
|
|
} else {
|
|
bp->bio_pblkno=bp->bio_blkno;
|
|
bp->bio_resid=0;
|
|
}
|
|
|
|
s=splbio(); /*Make sure we don't get intr'ed*/
|
|
bioqdisksort(&request_head[controller], bp);/*Add new request (bp) to queue (dp
|
|
and sort the requests in a way that
|
|
may not be ideal for CD-ROM media*/
|
|
|
|
|
|
matcd_start(controller); /*Ok, with our newly sorted queue,
|
|
see if we can start an I/O operation
|
|
right now*/
|
|
splx(s); /*Return priorities to normal*/
|
|
return; /*All done*/
|
|
|
|
bad: bp->bio_flags |= BIO_ERROR; /*Request bad in some way*/
|
|
done: bp->bio_resid = bp->bio_bcount; /*Show amount of data un read*/
|
|
biodone(bp); /*Signal we have done all we plan to*/
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_start - Pull a request from the queue and consider doing it.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static void matcd_start(int controller)
|
|
{
|
|
struct matcd_data *cd;
|
|
struct bio *bp;
|
|
struct partition *p;
|
|
int part,ldrive;
|
|
|
|
bp = bioq_first(&request_head[controller]);
|
|
if (bp == NULL) { /*Nothing on read queue to do?*/
|
|
wakeup((caddr_t)&matcd_data->status); /*Wakeup any blocked*/
|
|
return; /* opens, ioctls, etc*/
|
|
}
|
|
|
|
ldrive=matcd_ldrive(bp->bio_dev); /*Get logical drive#*/
|
|
cd=&matcd_data[ldrive]; /*Get pointer to data for this drive*/
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: In start controller %d\n",ldrive,controller);
|
|
#endif /*DEBUGIO*/
|
|
|
|
if (if_state[controller] & BUSBUSY) {
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Dropping thread in start, controller %d\n",
|
|
ldrive,controller);
|
|
#endif /*DEBUGIO*/
|
|
return;
|
|
}
|
|
|
|
/* Ok, the controller is idle (not necessarily the drive) and so
|
|
get the command to do and issue it
|
|
*/
|
|
|
|
bioq_remove(&request_head[controller], bp);
|
|
|
|
part=matcd_partition(bp->bio_dev);
|
|
p=cd->dlabel.d_partitions + part;
|
|
|
|
if_state[controller] |= BUSBUSY;/*<18>Mark bus as busy*/
|
|
cd->mbx.ldrive=ldrive; /*Save current logical drive*/
|
|
cd->mbx.controller=controller; /*and controller*/
|
|
cd->mbx.partition=part; /*and partition (2048 vs 2532)*/
|
|
cd->mbx.port=cd->iobase; /*and port#*/
|
|
cd->mbx.iftype=cd->iftype; /*<20>interface type*/
|
|
cd->mbx.retry=MATCD_RETRYS; /*and the retry count*/
|
|
cd->mbx.bp=bp; /*and the bp*/
|
|
cd->mbx.p_offset=p->p_offset; /*and where the data will go*/
|
|
matcd_blockread(MATCD_READ_1+ldrive); /*Actually start the read*/
|
|
return; /*Dropping thread. matcd_blockread
|
|
must have scheduled a timeout or
|
|
we will go to sleep forever*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcdioctl - Process things that aren't block reads
|
|
|
|
In this driver, ioctls are used mainly to change
|
|
the mode the drive is running in, play audio and other
|
|
things that don't fit into the block read scheme of things.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcdioctl(dev_t dev, u_long command, caddr_t addr,
|
|
int flags, struct proc *p)
|
|
{
|
|
struct matcd_data *cd;
|
|
int ldrive,cdrive,partition;
|
|
int port, controller;
|
|
#ifdef DEBUGIOCTL
|
|
int i;
|
|
#endif /*DEBUGIOCTL*/
|
|
|
|
ldrive=matcd_ldrive(dev);
|
|
cdrive=matcd_cdrive(dev);
|
|
partition=matcd_partition(dev);
|
|
controller=ldrive>>2;
|
|
cd = &matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: ioctl %lx cdrive %x parms ",ldrive,command,cdrive);
|
|
for (i=0;i<10;i++) {
|
|
printf("%02x ",(unsigned int)addr[i]);
|
|
}
|
|
printf(" flags %x\n",cd->flags);
|
|
#endif /*DEBUGIOCTL*/
|
|
|
|
if (command==CDIOCCLOSE) /*<16>Allow close if door open*/
|
|
return(matcd_doorclose(ldrive, cdrive, controller));
|
|
|
|
if (!(cd->flags & MATCDLABEL)) /*Did we read TOC OK?*/
|
|
return(EIO); /*<16>then drive really isn't ready*/
|
|
|
|
switch(command) {
|
|
|
|
case DIOCGDINFO:
|
|
*(struct disklabel *) addr = cd->dlabel;
|
|
return(0);
|
|
|
|
case DIOCGPART:
|
|
((struct partinfo *) addr)->disklab=&cd->dlabel;
|
|
((struct partinfo *) addr)->part=
|
|
&cd->dlabel.d_partitions[matcd_partition(dev)];
|
|
return(0);
|
|
|
|
case DIOCWDINFO:
|
|
case DIOCSDINFO:
|
|
if ((flags & FWRITE) == 0) {
|
|
return(EBADF);
|
|
}
|
|
else {
|
|
return setdisklabel(&cd->dlabel,
|
|
(struct disklabel *) addr, 0);
|
|
}
|
|
case DIOCWLABEL:
|
|
return(EBADF);
|
|
|
|
case CDIOCEJECT:
|
|
return(matcd_eject(ldrive, cdrive, controller));
|
|
|
|
case CDIOCALLOW:
|
|
return(matcd_dlock(ldrive, cdrive,
|
|
controller,0));
|
|
|
|
case CDIOCPREVENT:
|
|
return(matcd_dlock(ldrive, cdrive,
|
|
controller, MATCDLOCK));
|
|
|
|
#ifdef FULLDRIVER
|
|
case CDIOCPLAYTRACKS:
|
|
return(matcd_playtracks(ldrive, cdrive, controller,
|
|
(struct ioc_play_track *) addr));
|
|
|
|
case CDIOCPLAYMSF:
|
|
return(matcd_playmsf(ldrive, cdrive, controller,
|
|
(struct ioc_play_msf *) addr));
|
|
|
|
case CDIOCRESUME:
|
|
return(matcd_pause(ldrive, cdrive, controller,RESUME));
|
|
|
|
case CDIOCPAUSE:
|
|
return(matcd_pause(ldrive, cdrive, controller,0));
|
|
|
|
case CDIOCSTOP:
|
|
return(matcd_stop(ldrive, cdrive, controller));
|
|
|
|
case CDIOCGETVOL:
|
|
case CDIOCSETVOL:
|
|
return(matcd_level(ldrive, cdrive, controller,
|
|
(struct ioc_vol *) addr, command));
|
|
|
|
case CDIOCSETMONO: /*<12>This drive can't do mono*/
|
|
return(EINVAL); /*<12>but it looks like it should*/
|
|
|
|
/*<12>SRC OUT SRC OUT*/
|
|
case CDIOCSETSTEREO: /*<12>0 -> L 1 -> R*/
|
|
case CDIOCSETMUTE: /*<12>0 -> NULL 1 -> NULL*/
|
|
case CDIOCSETLEFT: /*<12>0 -> L&R 1 -> NULL*/
|
|
case CDIOCSETRIGHT: /*<12>0 -> NULL 1 -> L&R*/
|
|
/*<12>Adjust audio routing*/
|
|
return(matcd_route(ldrive, cdrive, controller, command));
|
|
|
|
case CDIOCSETPATCH: /*<12>Allow precise routing*/
|
|
return(matcd_patch(ldrive, cdrive, controller,
|
|
(struct ioc_patch *) addr));
|
|
|
|
case CDIOCPITCH: /*<12>Adjust playback speed*/
|
|
return(matcd_pitch(ldrive, cdrive, controller,
|
|
(struct ioc_pitch *) addr));
|
|
|
|
case CDIOCSTART: /*<12>Only reason this isn't*/
|
|
return(EINVAL); /*<12>implemented is I can't find out*/
|
|
/*<12>what it should do!*/
|
|
#endif /*FULLDRIVER*/
|
|
|
|
case CDIOREADTOCHEADER:
|
|
return(matcd_toc_header(ldrive, cdrive, controller,
|
|
(struct ioc_toc_header *) addr));
|
|
|
|
case CDIOREADTOCENTRYS:
|
|
return(matcd_toc_entries(ldrive, cdrive, controller,
|
|
(struct ioc_read_toc_entry *) addr));
|
|
|
|
case CDIOREADTOCENTRY:
|
|
return(matcd_toc_entry(ldrive, cdrive, controller,
|
|
(struct ioc_read_toc_single_entry *) addr));
|
|
|
|
case CDIOCREADSUBCHANNEL:
|
|
return(matcd_read_subq(ldrive, cdrive, controller,
|
|
(struct ioc_read_subchannel *) addr));
|
|
|
|
case CDIOCCAPABILITY: /*<16>Request drive/driver capability*/
|
|
return(matcd_igot((struct ioc_capability *) addr));
|
|
|
|
case CDIOCRESET: /*<12>There is no way to hard reset*/
|
|
return(EINVAL); /*<12>just one drive*/
|
|
|
|
default:
|
|
return(ENOTTY);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcdsize - Reports how many blocks exist on the disc.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcdsize(dev_t dev)
|
|
{
|
|
int size,blksize;
|
|
int ldrive,part;
|
|
struct matcd_data *cd;
|
|
|
|
ldrive=matcd_ldrive(dev);
|
|
part=matcd_partition(dev);
|
|
if (part==RAW_PART)
|
|
blksize=MATCDRBLK; /*2352*/
|
|
else
|
|
blksize=MATCDBLK; /*2048*/
|
|
|
|
cd = &matcd_data[ldrive];
|
|
|
|
if (matcd_volinfo(ldrive) >= 0) {
|
|
cd->blksize=blksize;
|
|
size=msf_to_blk((char * )&cd->volinfo.vol_msf);
|
|
|
|
cd->disksize=size*(blksize/DEV_BSIZE);
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Media size %d\n",ldrive,size);
|
|
#endif /*DEBUGOPEN*/
|
|
return(0);
|
|
}
|
|
return(-1);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_probe - Search for host interface/adapters
|
|
|
|
The probe routine hunts for the first drive on the interface since
|
|
there is no way to locate just the adapter. It also resets the
|
|
entire drive chain while it is there. matcd_attach() takes care of
|
|
the rest of the initialization.
|
|
|
|
The probe routine can be compiled two ways. In AUTOHUNT mode,
|
|
the kernel config file can say "port?" and we will check all ports
|
|
listed in the port_hint array (see above).
|
|
|
|
Without AUTOHUNT set, the config file must list a specific port
|
|
address to check.
|
|
|
|
Note that specifying the explicit addresses makes boot-up a lot
|
|
faster.
|
|
|
|
The probe will locate Panasonic/Creative interface on the following
|
|
Creative adapter boards:
|
|
#1330A Sound Blaster PRO
|
|
#1730 Sound Blaster 16
|
|
#1740 Sound Blaster 16 (cost reduced)
|
|
#2230 Sound Blaster 16 (cost reduced)
|
|
#2770 Sound Blaster 16 Value (cost reduced)
|
|
#1810 omniCD upgrade kit adapter card (stand-alone CD)
|
|
#3100 PhoneBlaster SB16 + Sierra 14.4K modem combo
|
|
Creative releases a newer and cheaper-to-make Sound Blaster
|
|
board every few months, so by the original release date of this
|
|
software, there are probably 8 different board models called
|
|
Sound Blaster 16. These include "Vibra", "Value", etc.
|
|
|
|
Please report additional part numbers and board descriptions
|
|
and new port numbers that work to the author.
|
|
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int
|
|
matcd_probe(struct isa_device *dev)
|
|
{
|
|
int i,cdrive;
|
|
unsigned char y;
|
|
int port = dev->id_iobase; /*Take port hint from config file*/
|
|
static int once;
|
|
|
|
if (!once++)
|
|
cdevsw_add(&matcd_cdevsw);
|
|
cdrive=nextcontroller; /*Controller defined by pass for now*/
|
|
if (nextcontroller==NUMCTRLRS) {
|
|
printf("matcd%d: - Too many interfaces specified in config\n",
|
|
nextcontroller);
|
|
return(0);
|
|
}
|
|
if (nextcontroller==0) { /*Very first time to be called*/
|
|
for (i=0; i<TOTALDRIVES; i++) {
|
|
matcd_data[i].drivemode=MODE_UNKNOWN;
|
|
matcd_data[i].flags=0;
|
|
}
|
|
}
|
|
|
|
i=nextcontroller*DRIVESPERC; /*Precompute controller offset*/
|
|
for (y=0; y<DRIVESPERC; y++) {
|
|
matcd_data[i+y].flags=0;
|
|
}
|
|
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd%d: In probe i %d y %d port %x\n",
|
|
nextcontroller,i,y,port);
|
|
#endif /*DEBUGPROBE*/
|
|
#ifdef AUTOHUNT
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd%d: size of port_hints %d\n",
|
|
nextcontroller,sizeof(port_hints));
|
|
#endif /*DEBUGPROBE*/
|
|
if (port==-1) {
|
|
for(i=0;i<(sizeof(port_hints)/sizeof(short));i++) {
|
|
port=port_hints[i];
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd%d: Port hint %x\n",nextcontroller,port);
|
|
#endif /*DEBUGPROBE*/
|
|
if (port==-1) {
|
|
dev->id_iobase=-1; /*Put port ? back*/
|
|
return(0);/*Nothing left to try*/
|
|
}
|
|
if (port!=0) { /*Untested port found*/
|
|
dev->id_iobase=port;
|
|
port_hints[i]=0;/*Don't use that port again*/
|
|
if (doprobe(port,cdrive)==0) return(NUMPORTS);
|
|
}
|
|
}
|
|
dev->id_iobase=-1; /*Put port ? back as it was*/
|
|
return(0); /*Interface not found*/
|
|
|
|
} else { /*Config specified a port*/
|
|
i=0; /*so eliminate it from the hint list*/
|
|
for(i=0;;i++) { /*or we might try to assign it again*/
|
|
if (port_hints[i]== -1) break; /*End of list*/
|
|
if (port_hints[i]==port) {
|
|
port_hints[i]=0; /*Clear duplicate*/
|
|
break;
|
|
}
|
|
}
|
|
if (doprobe(port,cdrive)==0) return(NUMPORTS);
|
|
else return(0);
|
|
}
|
|
#else /*AUTOHUNT*/
|
|
if (port==-1) {
|
|
printf("matcd%d: AUTOHUNT disabled but port? specified in config\n",
|
|
nextcontroller);
|
|
return(0);
|
|
}
|
|
if (doprobe(port,cdrive)==0) return(NUMPORTS);
|
|
else return(0);
|
|
#endif /*AUTOHUNT*/
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
doprobe - Common probe code that actually checks the ports we
|
|
have decided to test.
|
|
|
|
<20> Edit 20 changes adds code to determine if the host interface
|
|
is one that behaves like the Creative SoundBlaster cards,
|
|
or whether the host interface like those used by some boards
|
|
made by Media Vision and a version known as Lasermate.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int doprobe(int port,int cdrive)
|
|
{
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
int i;
|
|
|
|
#ifdef RESETONBOOT
|
|
doreset(port,cdrive); /*Reset what might be our device*/
|
|
#endif /*RESETONBOOT*/
|
|
outb(port+PHASE,0); /*<16>Guarantee status phase*/
|
|
zero_cmd(cmd);
|
|
cmd[0]=NOP; /*A reasonably harmless command.
|
|
This command will fail after
|
|
power-up or after reset. That's OK*/
|
|
#ifdef RESETONBOOT
|
|
if (((inb(port+STATUS) & (DTEN|STEN)) != (DTEN|STEN)) ||
|
|
(inb(port+DATA) != 0xff))
|
|
return(-1); /*<20>Something detected but it isn't
|
|
the device we wanted*/
|
|
#endif /*RESETONBOOT*/
|
|
if (matcd_fastcmd(port,0,0,cmd)==0) {/*Issue command*/
|
|
outb(port+PHASE,1); /*<20>Switch to Creative Data phase*/
|
|
i=inb(port+CMD); /*<20>Read a byte in data phase*/
|
|
outb(port+PHASE,0); /*<20>Switch to Creative Status phase*/
|
|
if ((inb(port+STATUS) & (DTEN|STEN))
|
|
== (DTEN|STEN)) { /*<20>Drive went idle*/
|
|
iftype=1; /*<20>It is not a Creative interface.*/
|
|
} else { /*<20>Status byte still available*/
|
|
iftype=0;
|
|
inb(port+CMD); /*<20>Read status byte*/
|
|
}
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd%d: Probe found something\n",nextcontroller);
|
|
#endif /*DEBUGPROBE*/
|
|
/*------Don't change anything below this line - see license -----------------*/
|
|
if (drivepresent==0) { /*Don't change*/
|
|
printf("matcd - Matsushita (Panasonic) CD-ROM Driver by FDIV, %s\n",
|
|
/*Don't change*/
|
|
MATCDVERSION); /*Don't change*/
|
|
drivepresent++; /*Don't change*/
|
|
if (drivepresent==0) /*Don't change - make LINT happy*/
|
|
printf("%s\n",MATCDCOPYRIGHT); /*Don't change*/
|
|
} /*Don't change*/
|
|
/*------Don't change anything above this line - see license -----------------*/
|
|
return(0); /*Drive 0 detected*/
|
|
}
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd%d: Probe DID NOT find something\n",nextcontroller);
|
|
#endif /*DEBUGPROBE*/
|
|
return(1);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_attach - Locates drives on the adapters that were located.
|
|
If we got here, we located an interface and at least one
|
|
drive. Now we figure out how many drives are under that
|
|
interface. The Panasonic interface is too simple to call
|
|
it a controller, but in the existing PDP model, that is
|
|
what it would be.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int
|
|
matcd_attach(struct isa_device *dev)
|
|
{
|
|
int i;
|
|
unsigned int z,cdrive;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[12];
|
|
struct matcd_data *cd;
|
|
int port = dev->id_iobase; /*Take port ID selected in probe()*/
|
|
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd: Attach dev %x id_unit %d\n",
|
|
(unsigned int)dev,dev->id_unit);
|
|
#endif /*DEBUGPROBE*/
|
|
printf("matcd%d Host interface type %d\n",
|
|
nextcontroller,iftype);
|
|
bioq_init(&request_head[nextcontroller]);
|
|
for (cdrive=0; cdrive<4; cdrive++) { /*We're hunting drives...*/
|
|
zero_cmd(cmd);
|
|
cmd[0]=NOP; /*A reasonably harmless command.
|
|
This command will fail after
|
|
power-up or after reset. It's OK*/
|
|
i=cdrive+(DRIVESPERC*nextcontroller);
|
|
if (matcd_fastcmd(port,i,cdrive,cmd)==0) { /*Issue cmd*/
|
|
z=get_stat(port,cdrive);/*Read status byte*/
|
|
if ((z & MATCD_ST_ERROR)) { /*If there was an error,
|
|
we must ask for error info
|
|
or subsequent cmds fail*/
|
|
zero_cmd(cmd);
|
|
cmd[0]=READERROR; /*Inquire*/
|
|
matcd_fastcmd(port,i,cdrive,cmd);
|
|
matcd_pread(port,8,data);/*Read data returned*/
|
|
z=get_stat(port,i);/*Read status byte*/
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd%d: Status byte %x ",i,z);
|
|
#endif /*DEBUGPROBE*/
|
|
}
|
|
zero_cmd(cmd);
|
|
cmd[0]=READID; /*Get drive ID*/
|
|
matcd_fastcmd(port,i,cdrive,cmd);
|
|
matcd_pread(port,10,data);/*Read Drive Parm*/
|
|
get_stat(port,i); /*Read and toss status byte*/
|
|
data[10]=0; /*Build ASCIZ string*/
|
|
printf("matcd%d: [%s] ",i,data);
|
|
cd=&matcd_data[i];
|
|
cd->flags |= MATCDINIT;
|
|
cd->iobase=dev->id_iobase;
|
|
cd->iftype=iftype;
|
|
cd->openflags=0;
|
|
cd->volume[0]=cd->volume[1]=DEFVOL;
|
|
/*<12>Match volume drive resets to*/
|
|
cd->patch[0]=0x01; /*<12>Channel 0 to Left*/
|
|
cd->patch[1]=0x02; /*<12>Channel 1 to Right*/
|
|
cd->status=CD_AS_NO_STATUS;
|
|
for (i=0; i<MAXPARTITIONS; i++) {
|
|
cd->partflags[i]=0;
|
|
}
|
|
make_dev(&matcd_cdevsw, dkmakeminor(i, 0, 0),
|
|
UID_ROOT, GID_OPERATOR, 0640, "rmatcd%da", i);
|
|
make_dev(&matcd_cdevsw, dkmakeminor(i, 0, RAW_PART),
|
|
UID_ROOT, GID_OPERATOR, 0640, "rmatcd%dc", i);
|
|
make_dev(&matcd_cdevsw, 0x80 | dkmakeminor(i, 0, 0),
|
|
UID_ROOT, GID_OPERATOR, 0640, "rmatcd%dla", i);
|
|
make_dev(&matcd_cdevsw,
|
|
0x80 | dkmakeminor(i, 0, RAW_PART),
|
|
UID_ROOT, GID_OPERATOR, 0640, "rmatcd%dc", i);
|
|
}
|
|
}
|
|
nextcontroller++; /*Bump ctlr assign to next number*/
|
|
printf("\n"); /*End line of drive reports*/
|
|
|
|
return(1);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
zero_cmd - Initialize command buffer
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void zero_cmd(char * lcmd)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<MAXCMDSIZ; lcmd[i++]=0);
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
doreset - Resets all the drives connected to a interface
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void doreset(int port,int cdrive)
|
|
{
|
|
register int i,z;
|
|
outb(port+RESET,0); /*Reset what might be our device*/
|
|
/*Although this ensures a known
|
|
state, it does close the drive
|
|
door (if open) and aborts any
|
|
audio playback in progress. */
|
|
for (i=0;i<(125*ISABUSKHZ);i++){/*DELAY 500msec minimum. Worst
|
|
case is door open and none or
|
|
unreadable media */
|
|
z=inb(port+CMD); /*This makes the loop run at a
|
|
known speed. This value is ok
|
|
for 8.33MHz bus*/
|
|
}
|
|
for (i=0;i<4;i++) {
|
|
matcd_data[(cdrive*4)+i].drivemode=MODE_UNKNOWN;
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_fastcmd - Send a command to a drive
|
|
|
|
This routine executed commands that return instantly (or reasonably
|
|
quick), such as RESET, NOP, READ ERROR, etc. The only difference
|
|
between it and handling for slower commands, is the slower commands
|
|
will invoke a timeout/sleep if they don't get an instant response.
|
|
|
|
Fastcmd is mainly used in probe(), attach() and error related
|
|
functions. Every attempt should be made to NOT use this
|
|
function for any command that might be executed when the system
|
|
is up.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcd_fastcmd(int port,int ldrive,int cdrive,unsigned char * cp)
|
|
{
|
|
unsigned int i;
|
|
unsigned char z;
|
|
int level;
|
|
#ifdef DEBUGCMD
|
|
unsigned char *cx;
|
|
#endif /*DEBUGCMD*/
|
|
|
|
|
|
|
|
draincmd(port,cdrive,ldrive); /*Make sure bus is really idle*/
|
|
#ifdef DEBUGCMD
|
|
cx=cp;
|
|
printf("matcd%d: Fast Send port %x sel %d command %x %x %x %x %x %x %x\n",
|
|
ldrive,port,cdrive,cx[0],cx[1],cx[2],cx[3],cx[4],cx[5],cx[6]);
|
|
#endif /*DEBUGCMD*/
|
|
selectdrive(port,cdrive); /*Enable the desired target drive*/
|
|
level=splhigh(); /*----------------------------------------*/
|
|
for (i=0; i<7; i++) { /*The seven bytes of the command*/
|
|
outb(port+CMD,*cp++); /*must be sent within 10msec or*/
|
|
} /*the drive will ignore the cmd*/
|
|
splx(level); /*------------------------------------------------*/
|
|
|
|
/* Now we wait a maximum of 240msec for a response.
|
|
Only in a few rare cases does it take this long.
|
|
If it is longer, the command should probably be slept on
|
|
rather than increasing the timing value
|
|
*/
|
|
|
|
for (i=0; i<(60*ISABUSKHZ); i++) {
|
|
z = (inb(port+STATUS)) & (DTEN|STEN);
|
|
if (z != (DTEN|STEN)) break;
|
|
}
|
|
|
|
/* We are now either in a data or status phase, OR we timed-out.*/
|
|
|
|
if (z == (DTEN|STEN)) {
|
|
#ifdef DEBUGCMD
|
|
printf("matcd%d: Command time-out\n",ldrive);
|
|
#endif /*DEBUGCMD*/
|
|
return(-1);
|
|
}
|
|
if (z != DTEN) {
|
|
return(1);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_slowcmd - Issue a command to the drive
|
|
|
|
This routine is for commands that might take a long time, such
|
|
as a read or seek. The caller must determine if the command
|
|
completes instantly or schedule a poll later on.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void matcd_slowcmd(int port,int ldrive,int cdrive,unsigned char * cp)
|
|
{
|
|
unsigned int i;
|
|
int level,size;
|
|
#ifdef DEBUGCMD
|
|
unsigned char *cx;
|
|
#endif /*DEBUGCMD*/
|
|
|
|
|
|
draincmd(port,cdrive,ldrive); /*Make sure bus is really idle*/
|
|
|
|
#ifdef DEBUGCMD
|
|
cx=cp;
|
|
printf("matcd%d: Slow Send port %x sel %d command %x %x %x %x %x %x %x\n",
|
|
ldrive,port,cdrive,cx[0],cx[1],cx[2],cx[3],cx[4],cx[5],cx[6]);
|
|
#endif /*DEBUGCMD*/
|
|
selectdrive(port,cdrive); /*Enable the desired target drive*/
|
|
if (*cp==ABORT) size=1;
|
|
else size=7;
|
|
level=splhigh(); /*----------------------------------------*/
|
|
for (i=0; i<size; i++) { /*The seven bytes of the command*/
|
|
outb(port+CMD,*cp++); /*must be sent within 10msec or*/
|
|
} /*the drive will ignore the cmd*/
|
|
splx(level); /*------------------------------------------------*/
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
draincmd - Makes certain the bus is idle and throws away
|
|
any residual data from the drive if there is any.
|
|
Called as preface to most commands.
|
|
Added in Edit 5.
|
|
|
|
This was added because switching drive modes causes
|
|
the drive to emit buffers that were meant to be sent
|
|
to the D-to-A to be sent to the host. See setmode.
|
|
---------------------------------------------------------------------------*/
|
|
void draincmd(int port,int cdrive,int ldrive)
|
|
{
|
|
int i,z;
|
|
|
|
i=inb(port+STATUS);
|
|
if ((i & (DTEN|STEN)) == (DTEN|STEN)) return;
|
|
|
|
printf("matcd%d: in draincmd: bus not idle %x - trying to fix\n",
|
|
ldrive,inb(port+STATUS));
|
|
if ((i & (DTEN|STEN)) == STEN) {
|
|
#ifdef DEBUGCMD
|
|
printf("matcd%d: Data present READING - ",ldrive);
|
|
#endif /*DEBUGCMD*/
|
|
i=0;
|
|
outb(port+PHASE,1); /*<16>Enable data read*/
|
|
while ((inb(port+STATUS) & (DTEN|STEN)) == STEN) {
|
|
inb(port+DATA); /*<21>Ok for Creative*/
|
|
inb(port+ALTDATA); /*<21>Ok for others*/
|
|
i++;
|
|
}
|
|
outb(port+PHASE,0);
|
|
#ifdef DEBUGCMD
|
|
printf("%d bytes read\n",i);
|
|
#endif /*DEBUGCMD*/
|
|
}
|
|
#ifdef DEBUGCMD
|
|
printf("matcd%d: Now read status: ",ldrive);
|
|
#endif /*DEBUGCMD*/
|
|
i=get_stat(port,ldrive); /*Read status byte*/
|
|
z=inb(port+STATUS); /*Read bus status*/
|
|
#ifdef DEBUGCMD
|
|
printf("Data byte %x and status is now %x\n",i,z);
|
|
#endif /*DEBUGCMD*/
|
|
if ((z & (DTEN|STEN)) != (DTEN|STEN)) {
|
|
printf("matcd%d: Bus not idle %x - resetting\n",
|
|
cdrive,inb(port+STATUS));
|
|
doreset(port,cdrive);
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
selectdrive - Swaps drive select bits
|
|
|
|
On Creative SB/SB16/stand-alone adapters, possibly to make them
|
|
hard to reverse engineer, the drive select signals are swapped.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void selectdrive(int port,int drive)
|
|
{
|
|
switch(drive) {
|
|
case 0: /*0x00 -> 0x00*/
|
|
outb(port+SELECT,CRDRIVE0);
|
|
break;
|
|
case 1: /*0x01 -> 0x02*/
|
|
outb(port+SELECT,CRDRIVE1);
|
|
break;
|
|
case 2: /*0x02 -> 0x01*/
|
|
outb(port+SELECT,CRDRIVE2);
|
|
break;
|
|
case 3: /*0x03 -> 0x03*/
|
|
outb(port+SELECT,CRDRIVE3);
|
|
break;
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_pread - Read small blocks of control data from a drive
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void matcd_pread(int port, int count, unsigned char * data)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<count; i++) {
|
|
*data++ = inb(port+CMD);
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_setmode - Configures disc to run in the desired data mode
|
|
|
|
This routine assumes the drive is already idle.
|
|
|
|
NOTE - Undocumented action of hardware: If you change (or reaffirm) data
|
|
modes with MODESELECT + BLOCKPARAM immediately after a command was
|
|
issued that aborted a DA play operation, the drive will unexpectedly
|
|
return 2532 bytes of data in a data phase on the first or second
|
|
subsequent command.
|
|
|
|
Original Symptom: drive will refuse to go idle after reading data
|
|
and status expected for a command. State mechanics for this are
|
|
not fully understood.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int
|
|
matcd_setmode(int ldrive, int mode)
|
|
{
|
|
struct matcd_data *cd;
|
|
int retries;
|
|
int i,port,cdrive;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd = matcd_data + ldrive;
|
|
retries=3;
|
|
cdrive=ldrive&0x03;
|
|
port=cd->iobase;
|
|
if (cd->drivemode==mode) {
|
|
return(0); /*Drive already set*/
|
|
}
|
|
|
|
/* The drive is not in the right mode, so we need to set it.
|
|
*/
|
|
|
|
zero_cmd(cmd);
|
|
cmd[0]=MODESELECT; /*Set drive transfer modes*/
|
|
/* cmd[1]=BLOCKPARAM; BLOCKPARAM==0*/
|
|
cmd[2]=mode;
|
|
switch(mode) {
|
|
case MODE_DATA:
|
|
cmd[3]=0x08; /*2048 bytes*/
|
|
break;
|
|
case MODE_USER:
|
|
cmd[3]=0x09; /*2352 bytes*/
|
|
cmd[4]=0x30;
|
|
break;
|
|
case MODE_DA:
|
|
cmd[3]=0x09; /*2352 bytes*/
|
|
cmd[4]=0x30;
|
|
break;
|
|
}
|
|
i=0;
|
|
while(retries-- > 0) {
|
|
i=matcd_fastcmd(port,ldrive,cdrive,cmd);
|
|
get_stat(port,ldrive); /*Read and toss status byte*/
|
|
if (i==0) {
|
|
cd->drivemode=mode; /*Set new mode*/
|
|
return(i);
|
|
}
|
|
get_error(port,ldrive,cdrive);
|
|
}
|
|
cd->drivemode=MODE_UNKNOWN; /*We failed*/
|
|
return(i);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_volinfo - Read information from disc Table of Contents
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcd_volinfo(int ldrive)
|
|
{
|
|
struct matcd_data *cd;
|
|
int port,i;
|
|
int z,cdrive;
|
|
int retry;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[12];
|
|
|
|
retry=10; /*<16>This may take a long time*/
|
|
cd = &matcd_data[ldrive];
|
|
cdrive=ldrive&0x03;
|
|
port=cd->iobase;
|
|
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: In volinfo, port %x\n",ldrive,port);
|
|
#endif /*DEBUGOPEN*/
|
|
|
|
while(retry>0) {
|
|
zero_cmd(cmd);
|
|
cmd[0]=READDINFO; /*Read Disc Info*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
i=waitforit(10*TICKRES,DTEN,port,"matvinf");
|
|
if (i) { /*THIS SHOULD NOT HAPPEN*/
|
|
z=get_stat(port,ldrive);/*Read status byte*/
|
|
printf("matcd%d: command failed, status %x\n",
|
|
ldrive,z);
|
|
return(-1);
|
|
}
|
|
matcd_pread(port, 6, data); /*Read data returned*/
|
|
z=get_stat(port,ldrive);/*Read status byte*/
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Data got was %x %x %x %x %x %x ",ldrive,
|
|
data[0],data[1],data[2], data[3],data[4],data[5]);
|
|
printf("status byte %x\n",z);
|
|
#endif /*DEBUGOPEN*/
|
|
if ((z & MATCD_ST_ERROR)==0)
|
|
break; /*No Error*/
|
|
|
|
/* If media change or other error, you have to read error data or
|
|
the drive will reject subsequent commands.
|
|
*/
|
|
|
|
if (chk_error(get_error(port, ldrive, cdrive))==ERR_FATAL) {
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: command failed, status %x\n",
|
|
ldrive,z);
|
|
#endif /*DEBUGOPEN*/
|
|
return(-1);
|
|
}
|
|
tsleep((caddr_t)&nextcontroller, PRIBIO, "matvi2", hz);
|
|
if ((--retry)==0) return(-1);
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Retrying",ldrive);
|
|
#endif /*DEBUGOPEN*/
|
|
}
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Status port %x \n",ldrive,inb(port+STATUS));
|
|
#endif /*DEBUGOPEN*/
|
|
|
|
cd->volinfo.type=data[0];
|
|
cd->volinfo.trk_high=data[2];
|
|
cd->volinfo.trk_low=data[1];
|
|
cd->volinfo.vol_msf[0]=data[3];
|
|
cd->volinfo.vol_msf[1]=data[4];
|
|
cd->volinfo.vol_msf[2]=data[5];
|
|
|
|
if (cd->volinfo.trk_low + cd->volinfo.trk_high) {
|
|
cd->flags |= MATCDLABEL;
|
|
return(0);
|
|
}
|
|
return(-1);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
blk_to_msf - Convert block numbers into CD disk block ids
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static void blk_to_msf(int blk, unsigned char *msf)
|
|
{
|
|
blk=blk+150; /*2 seconds skip required to
|
|
reach ISO data*/
|
|
msf[0]=blk/4500;
|
|
blk=blk%4500;
|
|
msf[1]=blk/75;
|
|
msf[2]=blk%75;
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
msf_to_blk - Convert CD disk block ids into block numbers
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int msf_to_blk(unsigned char * cd)
|
|
{
|
|
return(((cd[0]*60) /*Convert MSF to*/
|
|
+cd[1])*75 /*Blocks minus 2*/
|
|
+cd[2]-150); /*seconds*/
|
|
}
|
|
|
|
static void matcd_timeout(void *arg)
|
|
{
|
|
matcd_blockread((int)arg);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_blockread - Performs actual background disc I/O operations
|
|
|
|
This routine is handed the block number to read, issues the
|
|
command to the drive, waits for it to complete, reads the
|
|
data or error, retries if needed, and returns the results
|
|
to the host.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static void matcd_blockread(int state)
|
|
{
|
|
struct matcd_mbx *mbx;
|
|
int ldrive,cdrive;
|
|
int port, controller;
|
|
short iftype;
|
|
struct bio *bp;
|
|
struct matcd_data *cd;
|
|
int i;
|
|
struct matcd_read2 rbuf;
|
|
int blknum;
|
|
caddr_t addr;
|
|
int status;
|
|
int errtyp;
|
|
int phase;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
mbx = &matcd_data[state & 0x0f].mbx;
|
|
ldrive=mbx->ldrive; /*ldrive is logical drive #*/
|
|
cdrive=ldrive & 0x03; /*cdrive is drive # on a controller*/
|
|
port=mbx->port; /*port is base port for i/f*/
|
|
iftype=mbx->iftype;
|
|
bp= mbx->bp;
|
|
cd=&matcd_data[ldrive];
|
|
controller = cd->mbx.controller;
|
|
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Show state %x cdrive %d partition %d\n",
|
|
ldrive,state,cdrive,mbx->partition);
|
|
#endif /*DEBUGIO*/
|
|
|
|
loop:
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Top dp %x\n",ldrive,(unsigned int)dp);
|
|
#endif /*DEBUGIO*/
|
|
switch (state & 0xf0) {
|
|
case MATCD_READ_1:
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: State 1 cd->flags %x\n",ldrive,cd->flags);
|
|
#endif /*DEBUGIO*/
|
|
/* to check for raw/cooked mode */
|
|
if (cd->partflags[mbx->partition] & MATCDREADRAW) {
|
|
mbx->sz = MATCDRBLK;
|
|
i=matcd_setmode(ldrive, MODE_DA);
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Set MODE_DA result %d\n",ldrive,i);
|
|
#endif /*DEBUGIO*/
|
|
} else {
|
|
mbx->sz = cd->blksize;
|
|
i=matcd_setmode(ldrive, MODE_DATA);
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Set MODE_DATA result %d\n",ldrive,i);
|
|
#endif /*DEBUGIO*/
|
|
}
|
|
/*for first block*/
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: A mbx %x bp %x b_bcount %x sz %x\n",
|
|
ldrive,(unsigned int)mbx,(unsigned int)bp,
|
|
(unsigned int)bp->bio_bcount,mbx->sz);
|
|
#endif /*DEBUGIO*/
|
|
mbx->nblk = (bp->bio_bcount + (mbx->sz-1)) / mbx->sz;
|
|
mbx->skip=0;
|
|
nextblock:
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: at Nextblock b_blkno %d\n",
|
|
ldrive,(unsigned int)bp->bio_blkno);
|
|
#endif /*DEBUGIO*/
|
|
|
|
blknum=(bp->bio_blkno / (mbx->sz/DEV_BSIZE))
|
|
+ mbx->p_offset + mbx->skip/mbx->sz;
|
|
|
|
blk_to_msf(blknum,rbuf.start_msf);
|
|
|
|
zero_cmd(cmd);
|
|
cmd[0]=READ; /*Get drive ID*/
|
|
cmd[1]=rbuf.start_msf[0];
|
|
cmd[2]=rbuf.start_msf[1];
|
|
cmd[3]=rbuf.start_msf[2];
|
|
cmd[6]=1; /*Xfer only one block*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
|
|
/* Now that we have issued the command, check immediately to
|
|
see if data is ready. The drive has read-ahead caching, so
|
|
it is possible the data is already in the drive buffer.
|
|
|
|
If the data is not ready, schedule a wakeup and later on this
|
|
code will run again to see if the data is ready then.
|
|
*/
|
|
|
|
case MATCD_READ_2:
|
|
state=MATCD_READ_2+ldrive;
|
|
phase = (inb(port+STATUS)) & (DTEN|STEN);
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: In state 2 status %x ",ldrive,phase);
|
|
#endif /*DEBUGIO*/
|
|
switch(phase) {
|
|
case (DTEN|STEN): /*DTEN==H STEN==H*/
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Sleeping\n",ldrive);
|
|
#endif /*DEBUGIO*/
|
|
timeout(matcd_timeout,
|
|
(caddr_t)MATCD_READ_2+ldrive,hz/100);
|
|
return;
|
|
|
|
|
|
case STEN: /*DTEN=L STEN=H*/
|
|
case 0: /*DTEN=L STEN=L*/
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Data Phase\n",ldrive);
|
|
#endif /*DEBUGIO*/
|
|
addr=bp->bio_data + mbx->skip;
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Xfer Addr %x size %x",
|
|
ldrive,(unsigned int)addr,mbx->sz);
|
|
i=0; /*<20>Reset read count*/
|
|
#endif /*DEBUGIO*/
|
|
if (iftype==0) { /*<20>Creative host I/F*/
|
|
outb(port+PHASE,1); /*Enable data read*/
|
|
while((inb(port+STATUS) &
|
|
(DTEN|STEN))==STEN) {
|
|
*addr++=inb(port+DATA);
|
|
#ifdef DEBUGIO
|
|
i++;
|
|
#endif /*DEBUGIO*/
|
|
}
|
|
outb(port+PHASE,0); /*Disable read*/
|
|
} else { /*<20>Not Creative interface*/
|
|
while((inb(port+STATUS) &
|
|
(DTEN|STEN))==STEN) {
|
|
*addr++=inb(port+ALTDATA);
|
|
#ifdef DEBUGIO
|
|
i++;
|
|
#endif /*DEBUGIO*/
|
|
}
|
|
}
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Read %d bytes\n",ldrive,i);
|
|
#endif /*DEBUGIO*/
|
|
|
|
|
|
/* Now, wait for the Status phase to arrive. This will also
|
|
tell us if any went wrong with the request.
|
|
*/
|
|
while((inb(port+STATUS)&(DTEN|STEN)) != DTEN);
|
|
status=get_stat(port,ldrive); /*Read status byte*/
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Status port %x byte %x ",
|
|
ldrive,i,status);
|
|
#endif /*DEBUGIO*/
|
|
if (status & MATCD_ST_ERROR) {
|
|
i=get_error(port,ldrive,cdrive);
|
|
printf("matcd%d: %s while reading block %d [Soft]\n",
|
|
ldrive,matcderrors[i],(int)bp->bio_blkno);
|
|
media_chk(cd,i,ldrive,0);/*<14>was wrong place*/
|
|
}
|
|
|
|
if (--mbx->nblk > 0) {
|
|
mbx->skip += mbx->sz;
|
|
goto nextblock; /*Oooooh, you flunk the course*/
|
|
}
|
|
bp->bio_resid=0;
|
|
biodone(bp); /*Signal transfer complete*/
|
|
|
|
unlockbus(ldrive>>2, ldrive); /*Release bus lock*/
|
|
matcd_start(controller);/*See if other drives have work*/
|
|
return;
|
|
|
|
/* Here we skipped the data phase and went directly to status.
|
|
This indicates a hard error.
|
|
*/
|
|
|
|
case DTEN: /*DTEN=H STEN=L*/
|
|
status=get_stat(port,ldrive); /*Read status byte*/
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: error, status was %x\n",
|
|
ldrive,status);
|
|
#endif /*DEBUGIO*/
|
|
|
|
/* Ok, we need more details, so read error. This is needed to issue
|
|
any further commands anyway
|
|
*/
|
|
|
|
errtyp=get_error(port,ldrive,cdrive);
|
|
printf("matcd%d: %s while reading block %d\n",
|
|
ldrive,matcderrors[errtyp],(int)bp->bio_blkno);
|
|
|
|
if (media_chk(cd,errtyp,ldrive,0)==0) {
|
|
errtyp=chk_error(errtyp);
|
|
if (errtyp==ERR_RETRY) {/*<14>We can retry*/
|
|
/*<14>this error but the drive*/
|
|
/*<14>probably has already*/
|
|
if (mbx->retry-- > 0 ) {
|
|
state=MATCD_READ_1+ldrive;
|
|
#ifdef DEBUGIO
|
|
printf("matcd%d: Attempting retry\n",
|
|
ldrive);
|
|
#endif /*DEBUGIO*/
|
|
goto loop;
|
|
}
|
|
}
|
|
}
|
|
/*<14> The other error types are either something very bad or the media
|
|
<14> has been removed by the user. In both cases there is no retry
|
|
<14> for this call. We will invalidate the label in both cases.
|
|
*/
|
|
bp->bio_flags |= BIO_ERROR;
|
|
bp->bio_resid = bp->bio_bcount;
|
|
biodone(bp);
|
|
unlockbus(ldrive>>2, ldrive);
|
|
matcd_start(controller);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
docmd - Get the bus, do the command, wait for completion,
|
|
attempt retries, give up the bus.
|
|
For commands that do not return data.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int docmd(char * cmd, int ldrive, int cdrive, int controller, int port)
|
|
{
|
|
int retries,i,z;
|
|
|
|
lockbus(controller, ldrive); /*Request bus*/
|
|
retries=3;
|
|
while(retries-- > 0) {
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
i=waitforit(80*TICKRES,DTEN,port,"matcmd");
|
|
z=get_stat(port,ldrive);/*Read status byte*/
|
|
if ((z & MATCD_ST_ERROR)==0) break;
|
|
i=chk_error(get_error(port,ldrive,cdrive));
|
|
if (i!=ERR_INIT) {
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
return(EFAULT);
|
|
}
|
|
}
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
return(i);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
get_error - Read the error that aborted a command.
|
|
Created in Edit 6
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int get_error(int port, int ldrive, int cdrive)
|
|
{
|
|
int status,errnum;
|
|
unsigned char cmd1[MAXCMDSIZ];
|
|
unsigned char data[12];
|
|
|
|
zero_cmd(cmd1);
|
|
cmd1[0]=READERROR; /*Enquire*/
|
|
matcd_fastcmd(port,ldrive,cdrive,cmd1);
|
|
matcd_pread(port, 8, data); /*Read data returned*/
|
|
errnum=data[2]; /*Caller wants it classified*/
|
|
status=get_stat(port,ldrive); /*Read status byte*/
|
|
|
|
#ifdef DEBUGCMD
|
|
printf("matcd%d: Chkerror found %x on command %x addrval %x statusdata %x statusport %x\n",
|
|
ldrive,errnum,data[1],data[0],status,inb(port+STATUS));
|
|
#endif /*DEBUGCMD*/
|
|
return(errnum);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
chk_error - Classify the error that the drive reported
|
|
Created in Edit 6
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int chk_error(int errnum)
|
|
{
|
|
switch(errnum) {
|
|
/* These are errors we can attempt a retry for, although the drive
|
|
has already done so.
|
|
*/
|
|
case UNRECV_ERROR:
|
|
case SEEK_ERROR:
|
|
case TRACK_ERROR:
|
|
case FOCUS_ERROR:
|
|
case CLV_ERROR:
|
|
case DATA_ERROR:
|
|
case MODE_ERROR: /*<16>Make this retryable*/
|
|
return(ERR_RETRY);
|
|
|
|
/* These errors usually indicate the user took the media from the
|
|
drive while the dev was open. We will invalidate the unit
|
|
until it closes when we see this.
|
|
*/
|
|
case NOT_READY:
|
|
case MEDIA_CHANGED:
|
|
case DISC_OUT:
|
|
case HARD_RESET:
|
|
return (ERR_INIT);
|
|
|
|
/* These errors indicate the system is confused about the drive
|
|
or media, and point to bugs in the driver or OS. These errors
|
|
cannot be retried since you will always get the same error.
|
|
*/
|
|
|
|
case RAM_ERROR:
|
|
case DIAG_ERROR:
|
|
case CDB_ERROR:
|
|
case END_ADDRESS:
|
|
case ILLEGAL_REQ:
|
|
case ADDRESS_ERROR:
|
|
default:
|
|
return (ERR_FATAL);
|
|
}
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
get_stat - Reads status byte
|
|
|
|
This routine should be totally unnecessary, performing the
|
|
task with a single line of in-line code. However in special
|
|
cases, the drives return blocks of data that are not associated
|
|
with the command in question. This appears to be at least one
|
|
firmware error and the rest of the driver makes an effort to avoid
|
|
triggering the fault. However, reading and throwing this
|
|
bogus data is faster and less destructive than resetting all
|
|
the drives on a given controller, plus it leaves the other drives
|
|
unaffected.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int get_stat(int port,int ldrive)
|
|
{
|
|
int status,busstat;
|
|
|
|
status=inb(port+DATA); /*Read status byte, last step of cmd*/
|
|
busstat=inb(port+STATUS); /*<16>Get bus status - should be 0xff*/
|
|
while ((busstat & (DTEN|STEN)) != (DTEN|STEN)) {
|
|
printf("matcd%d: get_stat: After reading status byte, bus didn't go idle %x %x %x\n",ldrive,status,busstat,port);
|
|
if (( busstat & (DTEN|STEN)) == STEN) {
|
|
int k;
|
|
k=0;
|
|
#ifdef DEBUGCMD
|
|
printf("matcd%d: DATA PRESENT!!!! DISCARDING\n",ldrive);
|
|
#endif /*DEBUGCMD*/
|
|
outb(port+PHASE,1); /*Enable data read*/
|
|
while ((inb(port+STATUS) & (DTEN|STEN)) == STEN) {
|
|
inb(port+DATA);
|
|
inb(port+ALTDATA);
|
|
/* printf("%2x ",inb(port+DATA));*/
|
|
k++;
|
|
}
|
|
outb(port+PHASE,0);
|
|
#ifdef DEBUGCMD
|
|
printf("\nmatcd%d: BYTES READ IN DATA was %d\n",
|
|
ldrive,k);
|
|
#endif /*DEBUGCMD*/
|
|
}
|
|
status=inb(port+DATA); /*Read the status byte again*/
|
|
#ifdef DEBUGCMD
|
|
printf("matcd%d: Next status byte is %x\n",ldrive,status);
|
|
#endif /*DEBUGCMD*/
|
|
busstat=inb(port+STATUS);
|
|
}
|
|
return(status);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
waitforit - Waits for a command started by slowcmd to complete.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int waitforit(int timelimit, int state, int port, char * where)
|
|
{
|
|
int i,j;
|
|
|
|
j=i=0;
|
|
#ifdef DEBUGCMD
|
|
printf("matcd: waitforit port %x timelimit %x hz %x\n",
|
|
port,timelimit,hz);
|
|
#endif /*DEBUGCMD*/
|
|
while (i<timelimit) {
|
|
j=inb(port+STATUS) & (STEN|DTEN); /*Read status*/
|
|
if (j!=(STEN|DTEN)) break;
|
|
tsleep((caddr_t)&nextcontroller, PRIBIO, where, hz/100);
|
|
i++;
|
|
}
|
|
#ifdef DEBUGCMD
|
|
printf("matcd: Count was %d\n",i);
|
|
#endif /*DEBUGCMD*/
|
|
if (j==state) return(0); /*Command complete*/
|
|
#ifdef DEBUGCMD
|
|
printf("matcd: Timeout!");
|
|
#endif /*DEBUGCMD*/
|
|
return(1); /*Timeout occurred*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
lockbus - Wait for the bus on the requested driver interface
|
|
to go idle and acquire it.
|
|
Created in Edit 6
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void lockbus(int controller, int ldrive)
|
|
{
|
|
while ((if_state[controller] & BUSBUSY)) {
|
|
#ifdef DEBUGSLEEP
|
|
printf("matcd%d: Can't do it now - going to sleep\n",
|
|
ldrive);
|
|
#endif /*DEBUGSLEEP*/
|
|
tsleep((caddr_t)&matcd_data->status, PRIBIO,
|
|
"matlck", 0);
|
|
}
|
|
if_state[controller] |= BUSBUSY; /*<18>It's ours NOW*/
|
|
#ifdef DEBUGSLEEP
|
|
printf("matcd%d: BUS locked in lockbus\n",ldrive);
|
|
#endif /*DEBUGSLEEP*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
unlockbus - Release the host interface bus we already have so
|
|
someone else can use it.
|
|
Created in Edit 6
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void unlockbus(int controller, int ldrive)
|
|
{
|
|
if_state[controller] &= ~BUSBUSY;
|
|
#ifdef DEBUGSLEEP
|
|
printf("matcd%d: bus unlocked\n",ldrive);
|
|
#endif /*DEBUGSLEEP*/
|
|
wakeup((caddr_t)&matcd_data->status); /*Wakeup other users*/
|
|
matcd_start(controller); /*Wake up any block I/O*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
media_chk - Checks error for types related to media
|
|
changes.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int media_chk(struct matcd_data *cd,int errnum,int ldrive,int test)
|
|
{
|
|
if (errnum==NOT_READY ||
|
|
errnum==MEDIA_CHANGED ||
|
|
errnum==HARD_RESET ||
|
|
errnum==DISC_OUT) {
|
|
cd->flags &= ~MATCDLABEL; /*Mark label as invalid*/
|
|
if (test==0) { /*<14>Do warn by default*/
|
|
|
|
if ((cd->flags & MATCDWARN)==0) {/*<14>Msg already?*/
|
|
printf("matcd%d: Media changed - Further I/O aborted until device closed\n",ldrive);
|
|
cd->flags |= MATCDWARN;
|
|
}
|
|
}
|
|
return(1);
|
|
}
|
|
if (errnum==MODE_ERROR) /*<16>Maybe the setting is*/
|
|
cd->drivemode=MODE_UNKNOWN; /*<16>wrong so force a reset*/
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_eject - Open drive tray
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcd_eject(int ldrive, int cdrive, int controller)
|
|
{
|
|
int i,port;
|
|
struct matcd_data *cd;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase; /*Get I/O port base*/
|
|
|
|
#ifdef LOCKDRIVE
|
|
if (cd->flags & MATCDLOCK) { /*<15>Drive was locked via open*/
|
|
return(EINVAL); /*<15>so don't allow the eject*/
|
|
}
|
|
#endif /*LOCKDRIVE*/
|
|
zero_cmd(cmd); /*Initialize command buffer*/
|
|
cmd[0]=LOCK; /*Unlock drive*/
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
cmd[0]=DOOROPEN; /*Open Door*/
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
cd->flags &= ~(MATCDLABEL|MATCDLOCK); /*<15>Mark vol info invalid*/
|
|
return(i); /*Return result we got*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_doorclose - Close drive tray
|
|
<16> Added in Edit 16
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcd_doorclose(int ldrive, int cdrive, int controller)
|
|
{
|
|
int i,port;
|
|
struct matcd_data *cd;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase; /*Get I/O port base*/
|
|
|
|
zero_cmd(cmd); /*Initialize command buffer*/
|
|
cmd[0]=DOORCLOSE; /*Open Door*/
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
cd->flags &= ~(MATCDLABEL|MATCDLOCK); /*Mark vol info invalid*/
|
|
tsleep((caddr_t)&nextcontroller, PRIBIO, "matclos", hz);
|
|
return(i); /*Return result we got*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
<23> matcd_dlock - Honor/Reject drive tray requests
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcd_dlock(int ldrive, int cdrive, int controller, int action)
|
|
{
|
|
int i,port;
|
|
struct matcd_data *cd;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase; /*<23>Get I/O port base*/
|
|
|
|
zero_cmd(cmd); /*<23>Initialize command buffer*/
|
|
cmd[0]=LOCK; /*<23>Unlock drive*/
|
|
|
|
if (action) { /*<23>They want to lock the door?*/
|
|
cd->flags |= MATCDLOCK; /*<23>Remember we did this*/
|
|
cmd[1]=1; /*<23>Lock Door command*/
|
|
} else {
|
|
cd->flags &= ~MATCDLOCK;/*<23>Remember we did this*/
|
|
/*<23>Unlock Door command*/
|
|
}
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*<23>Issue command*/
|
|
return(i); /*<23>Return result we got*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_toc_header - Return Table of Contents header to caller
|
|
<13> New for Edit 13
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcd_toc_header(int ldrive, int cdrive, int controller,
|
|
struct ioc_toc_header * toc)
|
|
{
|
|
struct matcd_data *cd;
|
|
|
|
cd=&matcd_data[ldrive];
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
toc->len=msf_to_blk(cd->volinfo.vol_msf); /*In frames*/
|
|
toc->starting_track=cd->volinfo.trk_low; /*1*/
|
|
toc->ending_track=cd->volinfo.trk_high; /*Last track*/
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_toc_entries - Read all of the TOC entries
|
|
|
|
These entries are cached by the drive, but it might be worth
|
|
the space investment to have the driver cache these as well.
|
|
For a disc with 40 tracks, it means 41 command calls to get
|
|
this information from the drive.
|
|
<13> New for Edit 13
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcd_toc_entries(int ldrive, int cdrive, int controller,
|
|
struct ioc_read_toc_entry * ioc_entry)
|
|
{
|
|
struct matcd_data *cd;
|
|
struct cd_toc_entry entries[MAXTRKS];
|
|
struct cd_toc_entry *from;
|
|
struct cd_toc_entry *to;
|
|
int len,trk,i,z,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[8];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
zero_cmd(cmd);
|
|
cmd[0]=READTOC;
|
|
|
|
for(trk=cd->volinfo.trk_low-1; trk<cd->volinfo.trk_high; trk++) {
|
|
cmd[2]=trk+1;
|
|
lockbus(controller, ldrive); /*Request bus*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
i=waitforit(10*TICKRES,DTEN,port,"mats1");
|
|
matcd_pread(port, 8, data); /*Read data returned*/
|
|
z=get_stat(port,ldrive); /*Read status byte*/
|
|
if ((z & MATCD_ST_ERROR)) { /*Something went wrong*/
|
|
i=get_error(port, ldrive, cdrive);
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
return(EIO);
|
|
}
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
|
|
#ifdef DEBUGIOCTL
|
|
printf("Track %d addr/ctrl %x m %x s %x f %x\n",data[2],
|
|
data[1],data[4],data[5],data[6]);
|
|
#endif /*DEBUGIOCTL*/
|
|
|
|
entries[trk].control=data[1]; /*Track type*/
|
|
entries[trk].addr_type=ioc_entry->address_format;/*Type*/
|
|
entries[trk].track=data[2]; /*Track #, can be Out of Order*/
|
|
if (ioc_entry->address_format == CD_MSF_FORMAT) {
|
|
entries[trk].addr.msf.unused=0;
|
|
entries[trk].addr.msf.minute=data[4]; /*Min*/
|
|
entries[trk].addr.msf.second=data[5]; /*Sec*/
|
|
entries[trk].addr.msf.frame=data[6]; /*Frame*/
|
|
}
|
|
}
|
|
entries[trk].control=data[2]; /*Copy from last valid track*/
|
|
entries[trk].track=0xaa; /*<23>Lead-out*/
|
|
entries[trk].addr.msf.unused=0; /*Fill*/
|
|
entries[trk].addr.msf.minute=cd->volinfo.vol_msf[0];
|
|
entries[trk].addr.msf.second=cd->volinfo.vol_msf[1];
|
|
entries[trk].addr.msf.frame=cd->volinfo.vol_msf[2];
|
|
trk++; /*Bump to include leadout track*/
|
|
|
|
|
|
/* Now that we have read all the data from the drive, copy the
|
|
array from the kernel address space into the user address space
|
|
*/
|
|
|
|
len=ioc_entry->data_len;
|
|
i=ioc_entry->starting_track; /*<23>What did they want?*/
|
|
if (i==0xaa) i=trk-1; /*<23>Give them lead-out info*/
|
|
else i=ioc_entry->starting_track - 1; /*<23>start where they asked*/
|
|
from = &entries[i];
|
|
to = ioc_entry->data;
|
|
|
|
while (i < trk && len >= sizeof(struct cd_toc_entry)) {
|
|
if (copyout(from,to,sizeof(struct cd_toc_entry))
|
|
!= 0) {
|
|
return (EFAULT);
|
|
}
|
|
i++;
|
|
len -= sizeof(struct cd_toc_entry);
|
|
from++;
|
|
to++;
|
|
}
|
|
return(0);
|
|
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_toc_entriy - Read a single TOC entry
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcd_toc_entry(int ldrive, int cdrive, int controller,
|
|
struct ioc_read_toc_single_entry * ioc_entry)
|
|
{
|
|
struct matcd_data *cd;
|
|
int trk,origtrk,i,z,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[5];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
zero_cmd(cmd);
|
|
cmd[0]=READTOC;
|
|
|
|
origtrk=trk=ioc_entry->track;
|
|
if (trk == 0xaa)
|
|
/* leadout */
|
|
trk=cd->volinfo.trk_high-1;
|
|
cmd[2]=trk+1;
|
|
lockbus(controller, ldrive); /*Request bus*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
i=waitforit(10*TICKRES,DTEN,port,"mats1");
|
|
matcd_pread(port, 8, data); /*Read data returned*/
|
|
z=get_stat(port,ldrive); /*Read status byte*/
|
|
if ((z & MATCD_ST_ERROR)) { /*Something went wrong*/
|
|
i=get_error(port, ldrive, cdrive);
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
return(EIO);
|
|
}
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
|
|
#ifdef DEBUGIOCTL
|
|
printf("Track %d addr/ctrl %x m %x s %x f %x\n",data[2],
|
|
data[1],data[4],data[5],data[6]);
|
|
#endif /*DEBUGIOCTL*/
|
|
|
|
ioc_entry->entry.control=data[1]; /*Track type*/
|
|
ioc_entry->entry.addr_type=ioc_entry->address_format;/*Type*/
|
|
ioc_entry->entry.track=data[2]; /*Track #, can be Out of Order*/
|
|
if (ioc_entry->address_format == CD_MSF_FORMAT) {
|
|
ioc_entry->entry.addr.msf.unused=0;
|
|
ioc_entry->entry.addr.msf.minute=data[4]; /*Min*/
|
|
ioc_entry->entry.addr.msf.second=data[5]; /*Sec*/
|
|
ioc_entry->entry.addr.msf.frame=data[6]; /*Frame*/
|
|
}
|
|
if (origtrk == 0xaa) {
|
|
/* Handle leadout */
|
|
ioc_entry->entry.control=data[2]; /*Copy from last valid track*/
|
|
ioc_entry->entry.track=0xaa; /*Lead-out*/
|
|
ioc_entry->entry.addr.msf.unused=0; /*Fill*/
|
|
ioc_entry->entry.addr.msf.minute=cd->volinfo.vol_msf[0];
|
|
ioc_entry->entry.addr.msf.second=cd->volinfo.vol_msf[1];
|
|
ioc_entry->entry.addr.msf.frame=cd->volinfo.vol_msf[2];
|
|
}
|
|
return(0);
|
|
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_subq - Read the Sub-Q packet - (where are we?)
|
|
|
|
This call gives a snapshot state of where the optical
|
|
pick-up is when the command is issued.
|
|
<14> New for Edit 14
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcd_read_subq(int ldrive, int cdrive, int controller,
|
|
struct ioc_read_subchannel * sqp)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,z,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[12];
|
|
struct cd_sub_channel_info subq; /*Build result here*/
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
/* We only support the ioctl functions we could get information
|
|
on, so test for the things we can do
|
|
*/
|
|
|
|
if (sqp->data_format!=CD_CURRENT_POSITION ||
|
|
sqp->address_format!=CD_MSF_FORMAT) {
|
|
return(EINVAL);
|
|
}
|
|
|
|
zero_cmd(cmd);
|
|
cmd[0]=READSUBQ;
|
|
lockbus(controller, ldrive); /*Request bus*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
|
|
/* While we wait, fill in the hard-coded entries of the table*/
|
|
|
|
subq.what.position.data_format=CD_MSF_FORMAT;
|
|
subq.what.position.absaddr.msf.unused=0;
|
|
subq.what.position.reladdr.msf.unused=0;
|
|
|
|
i=waitforit(10*TICKRES,DTEN,port,"mats2");
|
|
matcd_pread(port, 11, data); /*Read data returned*/
|
|
z=get_stat(port,ldrive); /*Read status byte*/
|
|
if ((z & MATCD_ST_ERROR)) { /*Something went wrong*/
|
|
i=get_error(port, ldrive, cdrive);
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
return(EIO);
|
|
}
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
|
|
#ifdef DEBUGIOCTL
|
|
printf("Subq track %d index %d adr/ctl %x abs %d:%2d:%2d rel %d:%2d:%2d UPC %x\n",
|
|
data[2],data[3],data[1],data[4],data[5],data[6],
|
|
data[7],data[8],data[9],data[10]);
|
|
#endif /*DEBUGIOCTL*/
|
|
|
|
if (z & MATCD_ST_AUDIOBSY) { /*Drive playing or paused*/
|
|
if (cd->status==CD_AS_PLAY_PAUSED) { /*Have we issued*/
|
|
i=cd->status; /*a pause command?*/
|
|
} else {
|
|
i=CD_AS_PLAY_IN_PROGRESS;/*No, we really are playing*/
|
|
}
|
|
} else {
|
|
if (cd->status==CD_AS_PLAY_IN_PROGRESS) {/*It was playing*/
|
|
i=CD_AS_PLAY_COMPLETED; /*so it finished*/
|
|
} else { /*Any other status reported*/
|
|
i=cd->status; /*as we get it*/
|
|
}
|
|
}
|
|
|
|
subq.header.audio_status=cd->status=i; /*Store status we selected*/
|
|
|
|
subq.what.position.track_number=data[2];
|
|
subq.what.position.index_number=data[3];
|
|
|
|
subq.what.position.absaddr.msf.minute=data[4];
|
|
subq.what.position.absaddr.msf.second=data[5];
|
|
subq.what.position.absaddr.msf.frame=data[6];
|
|
|
|
subq.what.position.reladdr.msf.minute=data[7];
|
|
subq.what.position.reladdr.msf.second=data[8];
|
|
subq.what.position.reladdr.msf.frame=data[9];
|
|
|
|
/* Ok, now copy our nicely-built structure from the kernel address
|
|
space into the user address space (we hope)
|
|
*/
|
|
|
|
if (copyout(&subq, sqp->data,
|
|
min(sizeof(struct cd_sub_channel_info), sqp->data_len))!=0) {
|
|
return(EFAULT);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcd_igot - Like the song, report the capabilities that the
|
|
drive/driver has available.
|
|
|
|
This call returns a structure of flags indicating what
|
|
functions are available so that the application can offer
|
|
only the functions the drive is actually capable of.
|
|
<16> New for Edit 16
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcd_igot(struct ioc_capability * sqp)
|
|
{
|
|
|
|
#ifdef FULLDRIVER
|
|
sqp->play_function=(CDDOPLAYTRK | /*Can play trks/indx*/
|
|
CDDOPLAYMSF | /*Can play msf to msf*/
|
|
CDDOPAUSE | /*Can pause playback*/
|
|
CDDORESUME | /*Can resume playback*/
|
|
CDDOSTOP | /*Can stop playback*/
|
|
CDDOPITCH); /*Can change play pitch*/
|
|
|
|
sqp->routing_function=(CDREADVOLUME | /*Can read volume*/
|
|
CDSETVOLUME | /*Can set volume*/
|
|
CDSETSTEREO | /*Can select stereo play*/
|
|
CDSETLEFT | /*Can select left-only*/
|
|
CDSETRIGHT | /*Can select right-only*/
|
|
CDSETMUTE | /*Can mute audio*/
|
|
CDSETPATCH); /*Direct patch settings*/
|
|
#else /*FULLDRIVER*/
|
|
sqp->play_function=0; /*No audio capability*/
|
|
sqp->routing_function=0; /*No audio capability*/
|
|
#endif /*FULLDRIVER*/
|
|
|
|
sqp->special_function=(CDDOEJECT | /*Door can be opened*/
|
|
CDDOCLOSE | /*Door can be closed*/
|
|
CDDOLOCK | /*Door can be locked*/
|
|
CDREADSUBQ | /*Can read subchannel*/
|
|
CDREADENTRIES | /*Can read TOC entries*/
|
|
CDREADHEADER); /*Can read TOC*/
|
|
return(0);
|
|
}
|
|
|
|
|
|
#ifdef FULLDRIVER
|
|
#include <i386/isa/matcd/audio.c> /*<15>ioctls related to
|
|
audio are here*/
|
|
#endif /*FULLDRIVER*/
|
|
|
|
/*End of matcd.c*/
|
|
|