dc08ffec87
Introduce d_version field in struct cdevsw, this must always be initialized to D_VERSION. Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
3373 lines
110 KiB
C
3373 lines
110 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, 2002, 2003 Frank Durda IV. All rights reserved.
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"FDIV" is a trademark of Frank Durda IV.
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------------------------------------------------------------------------------
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the author nor the names of their contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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------------------------------------------------------------------------------
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The original version of this software was developed specifically for the
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FreeBSD Project.
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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 should be needed 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 sections before? Ok, here is how it works.
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Every time you change the code, you increment the ANSI 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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ANSI version codes have major and minor release numbers. Major
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releases numbered 1 thru n. Major feature additions should get a new
|
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major release number. Minor releases start with a null and then
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letters A thru Z as needed. So 3A(456) is Major release 3, Minor
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release 1, Edit 456 (the equivalent in XX.XX.XX version numbering used
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by certain monopolies would be 03.01.456), and 5(731) is Major release
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5, Minor release 0, Edit 731. Typically only the author will change
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the major and minor release codes in small 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 uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.org
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<4> Rebundled debug conditionals.
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14-Feb-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.org
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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-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.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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01-Mar-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.org
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<13> Added ioctls to return TOC headers and entries.
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19-Mar-1995 Frank Durda IV uhclem at freebsd.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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Complaints about too many comments are noted but that is all. :-)
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21-Mar-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.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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04-Apr-1995 Frank Durda IV uhclem at freebsd.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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01-Jun-1995 Frank Durda IV uhclem at freebsd.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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02-May-1995 Frank Durda IV uhclem at freebsd.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-1995 Frank Durda IV uhclem at freebsd.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 uhclem at freebsd.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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04-Jul-1995 Frank Durda IV uhclem at freebsd.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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08-Sep-1995 Frank Durda IV uhclem at freebsd.org
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<23> This change implements the ioctls for preventing media removal
|
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and allowing media removal.
|
|
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,
|
|
xcdplayer asks for track information one track at a time, and
|
|
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-1995 Frank Durda IV uhclem at freebsd.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
|
|
simply use the locking dev bit to flag a set of shadow partitions
|
|
when it comes to lock operations. All other operations treat the
|
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locked and unlocked partitions as being identical.
|
|
18-Sep-1995 Frank Durda IV uhclem at freebsd.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
|
|
to have been a race condition caused by doing separate timeout/sleep
|
|
calls without using SPL first. The change here is to use tsleep
|
|
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
|
|
given to timeout.
|
|
I also fixed some duplicate location strings in the tsleep calls.
|
|
24-Sep-1995 Frank Durda IV uhclem at freebsd.org
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|
<26> Moved a function declaration that generated two warnings with
|
|
the FULLCONFIG/FULLDRIVER conditionals disabled.
|
|
Updated the igot function so that it correctly reports limited
|
|
functions when a sub-set driver is compiled.
|
|
Eliminated FULLCONFIG conditional and now set controller counts
|
|
based on the NMATCD #define produced by the config process.
|
|
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-1995 Frank Durda IV uhclem at freebsd.org
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<27> An unknown number of modifications were made by third parties
|
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after edit 26, but they neglected to document everything that
|
|
was changed and why. These are known collectively as edit 27.
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|
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All Edit 27 changes were later discarded as part of the creation
|
|
of Release 3, as some of the changes became incompatible with
|
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FreeBSD 4.x/5.x, and some broke drive operations that used to work.
|
|
January 2003 Frank Durda IV uhclem at freebsd.org
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Begin work on Major Release 3 here
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|
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<28> Begin work on converting the code to run on FreeBSD 5.0. This
|
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included making the driver into a loadable kernel module, and
|
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interfacing with the new port allocator scheme. This code is not
|
|
based off what was in 4.6, but comes from the last version I
|
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personally submitted to the project, thus eliminating some fluff that
|
|
crept in over the years. The conditionally-compiled sections for
|
|
building on pre-FreeBSD 2.0 releases have been removed, as it was
|
|
likely not useful to anyone anymore.
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|
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I reclaimed Major device 46 for matcd - it was dropped from the 5.0
|
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"majors" file - but as of this date it has not been reassigned to
|
|
some other device.
|
|
10-Jan-2003 Frank Durda IV uhclem at freebsd.org
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<29> Work to adapt to the new way of passing key settings around between
|
|
functions and calls to the driver that seems to be forced on loadable
|
|
drivers or perhaps all drivers. This required substantial debugging
|
|
as the port addresses identified during probing were not reaching
|
|
all the functions that needed that information.
|
|
14-Jan-2003 Frank Durda IV uhclem at freebsd.org
|
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|
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<30> Work continues, and matcd successfully loads and unloads itself and
|
|
creates and cleans up its devs on repeated kldload/kldunloads.
|
|
Notice: Because the dev_depends() kernel call for internally linking
|
|
multiple devs to a master dev does not appear to exist prior to 5.0
|
|
(was not present in 4.6 or 4.7 releases), the dev create/cleanup
|
|
code may not link on older versions, not without commenting out
|
|
parts of that section of the driver. See matcd_attach.
|
|
09-Feb-2003 Frank Durda IV uhclem at freebsd.org
|
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|
|
<31> Open() now does everything it is supposed to, and completes
|
|
successfully. It isn't clear if disable_intr/enable_intr is
|
|
definitely going to prevent the drive commands from being issued
|
|
within 10msec, but this seems to be the calls to now use in place
|
|
of spl(7)/splx().
|
|
13-Feb-2003 Frank Durda IV uhclem at freebsd.org
|
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|
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<32> Strategy code changed to deal with the newer mechanisms for handling
|
|
request queues that exists in 5.0. The driver will now mount and
|
|
read an ISO filesystem.
|
|
17-Feb-2003 Frank Durda IV uhclem at freebsd.org
|
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|
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<33> A sweep through the code to eliminate compiler warnings. The code now
|
|
produces just one warning in the timeout() call, and so far this one
|
|
evades elimination. This edit also started to remove some now-dead
|
|
code, unneccessary includes and debug code inserted during the
|
|
previous two edits while trying to get basic functions working again.
|
|
22-Feb-2003 Frank Durda IV uhclem at freebsd.org
|
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|
|
<34> Removal of the DIAGPORT code. Although very useful during original
|
|
development and for troubleshooting some problems found by others, it
|
|
is no longer practical to keep, partly due to the way port allocation
|
|
is now handled in FreeBSD, but mostly because of how few motherboards
|
|
still have slots that will accomodate these diagnostic cards, most
|
|
of which were ISA. This presence of this code, even though ifdef-ed
|
|
out in all earlier finished FreeBSD releases, still drove some of
|
|
the other developers nuts for unclear reasons, but they should be
|
|
happy now... :-)
|
|
02-Mar-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<35> Work to make the FULLDRIVER conditional build still compile. This
|
|
inserts the audio and special ioctls not needed to be able to perform
|
|
simple single-session filesystem mounts, and was used to keep the
|
|
boot floppy kernel size down. This work was mainly just re-working
|
|
the way our internal data was passed around between functions (See
|
|
edit 29), and tracking down declarations that have moved from one
|
|
include file to another. Since all the code for talking to the
|
|
actual drives worked previously, only the interface back to the rest
|
|
of the kernel and calling apps needs any modernization.
|
|
09-Mar-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<36> Once work was complete on getting the FULLDRIVER audio functions
|
|
compiling again, suddenly we could not mount filesystems anymore.
|
|
This was eventually traced to a previously-not-performed-ioctl-call,
|
|
now made by some other part of the kernel immediately after an open()
|
|
call succeeds. This ioctl reads the TOC for all tracks on the disc.
|
|
Who is making this ioctl call (and what the answers are good for)
|
|
is not immediately apparent.
|
|
|
|
However, when FULLDRIVER wasn't present, this ioctl code was not
|
|
available and the driver returned an error to the ioctl, but the mount
|
|
succeeded anyway and the filesystem could be used with no issues.
|
|
When the ioctl code was there (as a result of FULLDRIVER build), it
|
|
was returning the information requested in MSF format, and this was
|
|
confusing the caller.
|
|
|
|
When matcd was originally written, returning MSF was all that the
|
|
original CD audio players ever wanted, but this new mount-time
|
|
query wants the answers in LBA format. So the READTOC call has been
|
|
updated to return either MSF or LBA formats. Having implemented
|
|
that, filesystems can be mounted again.
|
|
16-Mar-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<37> Related to Edit 36, when the various ioctls were updated to return
|
|
the offset information that was requested in either LBA or MSF
|
|
format, that broke the cdcontrol utility, which will request
|
|
information (via the "stat" command) in LBA or MSF based on the last
|
|
setting of the "set" command, but cdcontrol displays bogus results if
|
|
LBA results are returned when cdcontrol asked for them. An
|
|
examination of the behavior of the IDE CD-ROM driver shows that for
|
|
SUBQ data, the IDE driver ignores the format type in the request and
|
|
always returns MSF format, and that seems to be what cdcontrol really
|
|
wants, never mind what it asked for. Subsequently, a conditional
|
|
(SUBQRETREQUESTED) has been added which will direct the driver to
|
|
always return MSF in response to SUBQ queries (default), or to return
|
|
what the caller actually asked for. This probably should not be
|
|
activated until all other CD-ROM drivers and cdcontrol are fixed
|
|
on this point.
|
|
22-Mar-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<38> A revisit of the compiler warning on timeout() that just refuses to go
|
|
away. A review of other drivers using timeout() suggests that the
|
|
way timeout() is used within the kernel has been changed from
|
|
traditional calling and passed parameters. This call has no man page
|
|
(apparently not even a reference in an include file exists) which
|
|
makes confirmation difficult. Further, as the timeout is not used
|
|
predictably by the driver (sometimes needed, sometimes not), testing a
|
|
change in this area will take some stress/duration testing.
|
|
26-Mar-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<39> Two hardware failure conditions were identified when a eight-drive,
|
|
two controller configuration was tested. Some types of cable
|
|
failure are now detected and reported by the driver. Other failure
|
|
modes are documented here for reference:
|
|
1. If the firmware version string displayed during the driver
|
|
probing process (normally of the form) "[CR-NNNN.NN]" is
|
|
displayed as "[]", or "[ ]" indicates that two or
|
|
more drives are jumpered with the same drive select. This
|
|
condition may be accompanied by other strange random messages.
|
|
|
|
2. A firmware Version string "[^A^A^A^A^A^A^A^A^A^A]" indicates
|
|
that the cable used on the Matsushita drive appears to be
|
|
an IDE cable which has a pin pulled out of it (when this is
|
|
done, it is usually in the key position). A fully-pinned
|
|
cable must be used. A cable with shorts to ground or opens
|
|
on numerous lines can also cause this symptom.
|
|
|
|
3. If the driver refuses to go into Idle state, this indicates
|
|
a bad cable OR a power-supply under-volt condition. The
|
|
drives appear to stay in a Data or Status phase indefinitely
|
|
if the supply voltages are below +5 and +12 VDC. The drive
|
|
BUSY light may also remain lit continuously or the eject
|
|
button may be ignored.
|
|
|
|
The rest of this edit was more clean-up and removal of some debug
|
|
messages.
|
|
02-Apr-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<40> Replaced Copyright text section in all files with the new revisionist
|
|
(and vague) one currently required. Everybody should be happy. :-)
|
|
03-Apr-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<41> Rebuilt on a stock 5.0-RELEASE platform to look for any issues
|
|
that crept in since the late 2002 snapshot I had been using and
|
|
to verify functionality on a dual-processor system.
|
|
|
|
Changed the ioctl for eject so that it would work when there was
|
|
no media in the drive. The way it was seemed obviously wrong, but no
|
|
one had said anything about this behavior in all the years it has
|
|
worked that way.
|
|
|
|
Also discovered that some of the ioctls failed to lock the device
|
|
prior to issuing commands, and this could cause other operations
|
|
to that same drive to not start and hang forever. Example,
|
|
"strings /dev" on one process while another issues an eject. Yes,
|
|
the "strings" will end up getting an error, but that is what should
|
|
happen, not having "strings" simply stop and never come back.
|
|
18-Apr-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
<42> Changes to make matcd.c compile again on a 6-May-2003 pre-Beta 5.1
|
|
cvsup, as the deck chairs continue to shift.
|
|
o Dropped tests for DIOCWLABEL on reads, which is now undefined.
|
|
o bioqdisksort() in the kernel depths changed its name from 5.0.*
|
|
o bounds_check_with_label() kernel call disappeared since 5.0
|
|
with no apparent replacement.*
|
|
o The way the cdevsw structure is done has changed for the nth
|
|
time. It differs from what existed in 5.0.
|
|
o Dropped ioctl support for DIOCWDINFO and DIOCSDINFO.
|
|
Although both ioctls are still defined in system include
|
|
files, the setdisklabel() that I need to call to perform
|
|
the ioctls has disappeared since 5.0.
|
|
* Items marked are in the ifdef NOTEDIT42 rather than deleting
|
|
code that refers to kernel calls that may mysteriously return
|
|
in some future check-in.
|
|
10-May-2003 Frank Durda IV uhclem at freebsd.org
|
|
|
|
End of Edit History
|
|
---------------------------------------------------------------------------*/
|
|
|
|
/*Please match this ANSI version format:
|
|
Version_d[ c](d)_dd-mmm-yyyy */
|
|
static char MATCDVERSION[]="Version 3(42) 10-May-2003";
|
|
|
|
*/
|
|
|
|
|
|
static char MATCDCOPYRIGHT[] = "Matsushita CD-ROM driver, Copr. 1994,1995,2002,2003 Frank Durda IV";
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Fixed Defines - Change these values only if you are positive that
|
|
you know what you are doing. Values meant to be changed are in the
|
|
file "dev/matcd/options.h".
|
|
---------------------------------------------------------------------------*/
|
|
|
|
#define RAW_DEVICE 46 /*Major Dev number for raw device*/
|
|
#define RAW_PART 2
|
|
|
|
#define TICKRES 10 /*Our coarse timer resolution*/
|
|
#define ISABUSKHZ 8330 /*Number of IN/OUT ops on ISA/sec*/
|
|
#define MAXTRKS 101 /*Maximum possible tracks*/
|
|
|
|
#define DRIVESPERC 4 /*Max drive selects per controller*/
|
|
#define TOTALDRIVES NUMCTRLRS*DRIVESPERC /*Max possible drives*/
|
|
|
|
#define MATCDBLK 2048 /*Standard block size*/
|
|
#define MATCDRBLK 2352 /*Raw and/or DA block size*/
|
|
#define MATCD_RETRYS 5 /*Number of retries for read ops*/
|
|
#define MATCD_READ_1 0x80 /*Read state machine defines*/
|
|
#define MATCD_READ_2 0x90 /*Read state machine defines*/
|
|
|
|
/* Bit equates for matcd_data.flags*/
|
|
|
|
#define MATCDINIT 0x0001 /*Probe ran on host adapter*/
|
|
#define MATCDLABEL 0x0004 /*Valid TOC exists*/
|
|
#define MATCDLOCK 0x0008 /*<15>Drive door is locked*/
|
|
#define MATCDWARN 0x0020 /*Have reported an open disc change*/
|
|
|
|
/* Bit equates for matcd_data.partflags*/
|
|
|
|
#define MATCDOPEN 0x0001
|
|
#define MATCDREADRAW 0x0002
|
|
|
|
/* Flags in the if_state array */
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#define BUSBUSY 0x01 /*<18>Bus is already busy*/
|
|
|
|
/* Error classes returned by chk_error()*/
|
|
|
|
#define ERR_RETRY 1 /*A retry might recover this*/
|
|
#define ERR_INIT 2 /*A retry certainly will get this*/
|
|
#define ERR_FATAL 3 /*This cannot be recovered from*/
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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)
|
|
#else /*LOCKDRIVE*/
|
|
#define matcd_lockable(dev) (0); /*Behave like non-locking*/
|
|
#endif /*LOCKDRIVE*/
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Include file declarations
|
|
---------------------------------------------------------------------------*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/bio.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/cdio.h>
|
|
#include <sys/disk.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <machine/bus_pio.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/disklabel.h>
|
|
|
|
#include <isa/isavar.h>
|
|
|
|
#include <dev/matcd/options.h>
|
|
#include <dev/matcd/matcd_data.h>
|
|
#include <dev/matcd/matcddrv.h>
|
|
#include <dev/matcd/creativeif.h>
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Global structures and variables
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static struct bio_queue_head request_head[NUMCTRLRS]; /*<18>One queue for
|
|
each interface*/
|
|
static int nextcontroller=0; /*Number of interface units probed*/
|
|
static int drivepresent=0; /*Drive has >0 drives found*/
|
|
static int iftype; /*Probe/Attach I/F type relay*/
|
|
|
|
struct matcd_volinfo {
|
|
unsigned char type; /*00 CD-DA or CD-ROM
|
|
10 CD-I
|
|
20 XA */
|
|
unsigned char trk_low; /*Normally 1*/
|
|
unsigned char trk_high; /*Highest track number*/
|
|
unsigned char vol_msf[3]; /*Size of disc in min/sec/frame*/
|
|
};
|
|
|
|
struct matcd_mbx {
|
|
short controller;
|
|
short ldrive;
|
|
short partition;
|
|
short port;
|
|
short iftype; /*<20>Host interface type*/
|
|
short retry;
|
|
short nblk;
|
|
int sz;
|
|
u_long skip;
|
|
struct bio *bp;
|
|
int p_offset;
|
|
short count;
|
|
};
|
|
|
|
static struct matcd_data {
|
|
device_t dev;
|
|
dev_t matcd_dev_t;
|
|
short config;
|
|
short drivemode; /*Last state drive was set to*/
|
|
short flags;
|
|
short status; /*Last audio-related function*/
|
|
int blksize;
|
|
u_long disksize;
|
|
short iobase;
|
|
short iftype; /*Host interface type*/
|
|
struct disklabel dlabel;
|
|
unsigned int partflags[MAXPARTITIONS];
|
|
unsigned int openflags;
|
|
struct matcd_volinfo volinfo;
|
|
struct matcd_mbx mbx;
|
|
u_char patch[2]; /*Last known audio routing*/
|
|
u_char volume[2]; /*Last known volume setting*/
|
|
struct bio_queue_head head;
|
|
} matcd_data[TOTALDRIVES];
|
|
|
|
struct matcd_read2 {
|
|
unsigned char start_msf[3];
|
|
unsigned char end_msf[3];
|
|
};
|
|
|
|
static unsigned char if_state[4]={0,0,0,0}; /*State of host I/F and bus*/
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Entry points and other connections to/from kernel - see matcd_isa.c
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcd_probe(struct matcd_softc *sc);
|
|
int matcd_attach(struct matcd_softc *sc);
|
|
static int matcdopen(dev_t dev, int flags, int fmt, struct thread *ptx);
|
|
static int matcdclose(dev_t dev, int flags, int fmt, struct thread *ptx);
|
|
static void matcdstrategy(struct bio *bp);
|
|
static d_ioctl_t matcdioctl;
|
|
static timeout_t matcd_timeout;
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Internal function declarations
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcdsize(dev_t dev);
|
|
static void matcd_start(struct bio_queue_head *dp);
|
|
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 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, struct matcd_softc *sc);
|
|
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);
|
|
static void blk_to_msf(int blk, unsigned char *msf);
|
|
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_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);
|
|
static int matcd_setmode(int ldrive, int mode);
|
|
|
|
#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_playblk(int ldrive, int cdrive, int controller,
|
|
struct ioc_play_blocks *pb);
|
|
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, int 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,
|
|
int command);
|
|
static int matcd_pitch(int ldrive, int cdrive, int controller,
|
|
struct ioc_pitch * speed);
|
|
#endif /*FULLDRIVER*/
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
This Character Device Switch Table gives the rest of the kernel
|
|
a list of what functions do and don't exist, and what to call to
|
|
get them. Read-only block devices have pretty much the same items.
|
|
|
|
<42> Apparently now you don't declare things you can't do. You used
|
|
to say "nowhatever it was".
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static struct cdevsw matcd_cdevsw = {
|
|
.d_version = D_VERSION,
|
|
.d_open = matcdopen, /* open */
|
|
.d_close = matcdclose, /* close */
|
|
.d_read = physread, /* read */
|
|
/* write used to be here */
|
|
|
|
.d_ioctl = matcdioctl, /* ioctl */
|
|
|
|
.d_strategy = matcdstrategy, /* strategy */
|
|
.d_name = "matcd", /* name */
|
|
.d_maj = RAW_DEVICE, /* maj */
|
|
.d_flags = D_DISK | D_NEEDGIANT,
|
|
};
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcd_attach(struct matcd_softc *sc)
|
|
{
|
|
int i;
|
|
unsigned int z,cdrive;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[12];
|
|
struct matcd_data *cd;
|
|
int port = sc->port_bsh; /*Take port ID selected in probe()*/
|
|
dev_t d;
|
|
int unit=0;
|
|
|
|
printf("matcdc%d: Host interface type %d port %x\n",
|
|
nextcontroller,iftype,port);
|
|
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*/
|
|
unit=cdrive+(DRIVESPERC*nextcontroller);
|
|
if (matcd_fastcmd(port,unit,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,unit,cdrive,cmd);
|
|
matcd_pread(port,8,data);/*Read data returned*/
|
|
z=get_stat(port,unit);/*Read status byte*/
|
|
#ifdef DEBUGPROBE
|
|
printf("matcd%d: Status byte %x ",unit,z);
|
|
#endif /*DEBUGPROBE*/
|
|
}
|
|
zero_cmd(cmd);
|
|
cmd[0]=READID; /*Get drive ID*/
|
|
matcd_fastcmd(port,unit,cdrive,cmd);
|
|
matcd_pread(port,10,data);/*Read Drive Parm*/
|
|
get_stat(port,unit); /*Read and toss status byte*/
|
|
data[10]=0; /*Build ASCIZ string*/
|
|
printf("matcd%d: [%s] ",unit,data);
|
|
cd=&matcd_data[unit];
|
|
cd->flags |= MATCDINIT;
|
|
cd->iobase=port;
|
|
cd->iftype=iftype;
|
|
cd->openflags=0;
|
|
cd->volume[0]=cd->volume[1]=DEFVOL;
|
|
/*Match volume drive resets to*/
|
|
cd->patch[0]=0x01; /*Channel 0 to Left*/
|
|
cd->patch[1]=0x02; /*Channel 1 to Right*/
|
|
cd->status=CD_AS_NO_STATUS;
|
|
for (i=0; i<MAXPARTITIONS; i++) {
|
|
cd->partflags[i]=0;
|
|
}
|
|
|
|
/* This section creates the devices files in the /dev directory for each
|
|
drive that is found. There must be a drive 0 on each controller in
|
|
order to get any device files at all.
|
|
*/
|
|
|
|
if (unit%4==0) { /*First drive of controller*/
|
|
sc->matcd_dev_t = make_dev(&matcd_cdevsw,
|
|
8 * unit,
|
|
UID_ROOT,
|
|
GID_OPERATOR,
|
|
0640,
|
|
"matcd%da", unit);
|
|
} else { /*Drives 1 thru N*/
|
|
d = make_dev(&matcd_cdevsw, 8 * unit,
|
|
UID_ROOT, GID_OPERATOR,
|
|
0640, "matcd%da", unit);
|
|
dev_depends(sc->matcd_dev_t,d);
|
|
}
|
|
d=make_dev(&matcd_cdevsw, (8 * unit)+2, UID_ROOT,
|
|
GID_OPERATOR, 0640, "matcd%dc", unit);
|
|
dev_depends(sc->matcd_dev_t,d);
|
|
d=make_dev(&matcd_cdevsw, (8 * unit)+128, UID_ROOT,
|
|
GID_OPERATOR, 0640, "matcd%dla", unit);
|
|
dev_depends(sc->matcd_dev_t,d);
|
|
d=make_dev(&matcd_cdevsw, (8 * unit)+130, UID_ROOT,
|
|
GID_OPERATOR, 0640, "matcd%dlc", unit);
|
|
dev_depends(sc->matcd_dev_t,d);
|
|
}
|
|
}
|
|
bioq_init(&request_head[nextcontroller]); /*Init request queue*/
|
|
nextcontroller++; /*Bump ctlr assign to next number*/
|
|
printf("\n"); /*End line of drive reports*/
|
|
return(0); /*Must return "NO ERROR"*/
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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.
|
|
---------------------------------------------------------------------------*/
|
|
static int matcdopen(dev_t dev, int flags, int fmt,
|
|
struct thread *ptx)
|
|
{
|
|
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; /*Mark label as invalid*/
|
|
if (major(dev)==RAW_DEVICE) { /*Is the char device?*/
|
|
return(0); /*Allow Semi open*/
|
|
}
|
|
else {
|
|
return(ENXIO); /*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)) { /*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); /*Free bus lck*/
|
|
return(ENOTTY);
|
|
}
|
|
|
|
} else {
|
|
media_chk(cd,i,ldrive,1);/*Was it a disc chg?*/
|
|
/*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 if 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) 2003, 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 to 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 older
|
|
BSD fixed partition count scheme.
|
|
*/
|
|
|
|
cd->flags |= MATCDLABEL; /*Mark drive as having TOC*/
|
|
}
|
|
|
|
#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);/*Issue cmd*/
|
|
cd->flags |= MATCDLOCK; /*Drive is now locked*/
|
|
}
|
|
#endif /*LOCKDRIVE*/
|
|
cd->openflags |= (1<<(partition+lock));/*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.
|
|
|
|
If you define LOCKDRIVE, and the drive has been opened using
|
|
one of the locking minor numbers, code in close will unlock
|
|
the drive. See Edit 15 in Edit History.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcdclose(dev_t dev, int flags, int fmt,struct thread *ptx)
|
|
{
|
|
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) { /*Really last close?*/
|
|
#ifdef LOCKDRIVE
|
|
if (cd->flags & MATCDLOCK) { /*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);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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.
|
|
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int matcd_probe(struct matcd_softc *sc)
|
|
{
|
|
int i,cdrive;
|
|
unsigned char y;
|
|
int port = sc->port_bsh; /*Obtain port number hint*/
|
|
|
|
cdrive=nextcontroller; /*Controller defined by pass for now*/
|
|
if (nextcontroller==NUMCTRLRS) {
|
|
device_printf(sc->dev,"matcdc%d: - Too many interfaces specified- adjust NMATCD\n",
|
|
nextcontroller);
|
|
return(1);
|
|
}
|
|
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
|
|
device_printf(sc->dev,"matcdc%d: In probe i %d y %d port %x\n",
|
|
nextcontroller,i,y,port);
|
|
#endif /*DEBUGPROBE*/
|
|
#ifdef AUTOHUNT
|
|
#ifdef DEBUGPROBE
|
|
device_printf(sc->dev,"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
|
|
device_printf(sc->dev,"matcdc%d: Port hint %x\n",nextcontroller,port);
|
|
#endif /*DEBUGPROBE*/
|
|
if (port==-1) {
|
|
#ifdef DOUPDATE
|
|
dev->id_iobase=-1; /*Put port ? back*/
|
|
#endif
|
|
return(1);/*Nothing left to try*/
|
|
}
|
|
if (port!=0) { /*Untested port found*/
|
|
#ifdef DOUPDATE
|
|
dev->id_iobase=port;
|
|
#endif
|
|
port_hints[i]=0;/*Don't use that port again*/
|
|
if (doprobe(port,cdrive,sc)==0) return(NUMPORTS);
|
|
}
|
|
}
|
|
#ifdef DOUPDATE
|
|
dev->id_iobase=-1; /*Put port ? back as it was*/
|
|
#endif
|
|
return(1); /*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,sc)==0) return(0);
|
|
else return(1);
|
|
}
|
|
#else /*AUTOHUNT*/
|
|
if (port==-1) {
|
|
device_printf(sc->dev,"matcdc%d: AUTOHUNT disabled but port? specified in config\n",
|
|
nextcontroller);
|
|
return(1);
|
|
}
|
|
if (doprobe(port,cdrive,sc)==0) return(0);
|
|
else return(1);
|
|
#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,struct matcd_softc *sc)
|
|
{
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
int i;
|
|
|
|
#ifdef RESETONBOOT
|
|
doreset(port,cdrive); /*Reset what might be our device*/
|
|
#endif /*RESETONBOOT*/
|
|
outb(port+PHASE,0); /*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); /*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); /*Switch to Creative Data phase*/
|
|
i=inb(port+CMD); /*Read a byte in data phase*/
|
|
outb(port+PHASE,0); /*Switch to Creative Status phase*/
|
|
if ((inb(port+STATUS) & (DTEN|STEN))
|
|
== (DTEN|STEN)) { /*Drive went idle*/
|
|
iftype=1; /*It is not a Creative interface.*/
|
|
} else { /*Status byte still available*/
|
|
iftype=0; /*It is a Creative interface*/
|
|
inb(port+CMD); /*Read status byte*/
|
|
}
|
|
#ifdef DEBUGPROBE
|
|
device_printf(sc->dev,"matcdc%d: Probe found something\n",nextcontroller);
|
|
#endif /*DEBUGPROBE*/
|
|
/*------If you change the following, it makes remote support difficult-------*/
|
|
if (drivepresent==0) {
|
|
device_printf(sc->dev,
|
|
"Matsushita/Panasonic CD-ROM Driver by FDIV, %s\n",
|
|
MATCDVERSION);
|
|
drivepresent++;
|
|
if (drivepresent==0) /*make LINT happy*/
|
|
device_printf(sc->dev,"%s\n",MATCDCOPYRIGHT);
|
|
}
|
|
/*------If you change the preceding, it makes remote support difficult-------*/
|
|
return(0); /*Drive 0 detected*/
|
|
}
|
|
#ifdef DEBUGPROBE
|
|
device_printf(sc->dev,"matcdc%d: Probe DID NOT find something\n",nextcontroller);
|
|
#endif /*DEBUGPROBE*/
|
|
return(1);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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 the 8.33MHz ISA 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;
|
|
|
|
#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*/
|
|
disable_intr(); /*----------------------------------------*/
|
|
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*/
|
|
enable_intr(); /*------------------------------------------------*/
|
|
|
|
/* 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 in
|
|
question should probably be slept on rather than increasing this
|
|
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);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
draincmd - Empty any pending data drive has to send
|
|
|
|
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 %x - trying to fix\n",
|
|
ldrive,port+STATUS,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); /*Enable data read*/
|
|
while ((inb(port+STATUS) & (DTEN|STEN)) == STEN) {
|
|
inb(port+DATA); /*Ok for Creative*/
|
|
inb(port+ALTDATA); /*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;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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, when this situation occurs, simply
|
|
reading and throwing-away this bogus data is faster and less
|
|
destructive than resetting all the drives on a given controller to get
|
|
back in sync, plus not resetting leaves the other drives unaffected.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int get_stat(int port,int ldrive)
|
|
{
|
|
int status,busstat;
|
|
int i;
|
|
|
|
status=inb(port+DATA); /*Read status byte, last step of cmd*/
|
|
busstat=inb(port+STATUS); /*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 - Check for bad cable\n",ldrive,status,busstat,port);
|
|
if (( busstat & (DTEN|STEN)) == STEN) {
|
|
i=0;
|
|
outb(port+PHASE,1); /*Enable data read*/
|
|
while ((inb(port+STATUS) & (DTEN|STEN)) == STEN) {
|
|
(void)inb(port+DATA);
|
|
(void)inb(port+ALTDATA);
|
|
i++;
|
|
}
|
|
outb(port+PHASE,0);
|
|
}
|
|
status=inb(port+DATA); /*Read the status byte again*/
|
|
busstat=inb(port+STATUS);
|
|
}
|
|
return(status);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
zero_cmd - Initialize command buffer
|
|
---------------------------------------------------------------------------*/
|
|
|
|
void zero_cmd(char * lcmd)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<MAXCMDSIZ; lcmd[i++]=0);
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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 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;
|
|
disable_intr(); /*------------------------------------------------*/
|
|
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*/
|
|
enable_intr(); /*------------------------------------------------*/
|
|
return;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
waitforit - Waits for a command started by slowcmd to complete.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
int waitforit(int timelimit, int state, int port, char * where)
|
|
{
|
|
int i,j;
|
|
|
|
j=0;
|
|
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)
|
|
{
|
|
#ifdef DEBUGSLEEP
|
|
printf("matcd%d: Requesting bus lock in lockbus, controller %d\n",ldrive,controller);
|
|
#endif /*DEBUGSLEEP*/
|
|
while ((if_state[controller] & BUSBUSY)) {
|
|
#ifdef DEBUGSLEEP
|
|
printf("matcd%d: Can't do it now - going to sleep %d\n",
|
|
ldrive,controller);
|
|
#endif /*DEBUGSLEEP*/
|
|
tsleep((caddr_t)&matcd_data->status, PRIBIO,
|
|
"matlck", 0);
|
|
}
|
|
if_state[controller] |= BUSBUSY; /*It's ours NOW*/
|
|
#ifdef DEBUGSLEEP
|
|
printf("matcd%d: Bus now locked in lockbus, controller %d\n",ldrive,controller);
|
|
#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 %d\n",ldrive,controller);
|
|
#endif /*DEBUGSLEEP*/
|
|
wakeup((caddr_t)&matcd_data->status); /*Wakeup other users*/
|
|
matcd_start(&request_head[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) {/*Msg seen already?*/
|
|
printf("matcd%d: Media changed - Further I/O aborted until device closed\n",ldrive);
|
|
cd->flags |= MATCDWARN;
|
|
}
|
|
}
|
|
return(1);
|
|
}
|
|
if (errnum==MODE_ERROR) /*Maybe the setting is*/
|
|
cd->drivemode=MODE_UNKNOWN; /*wrong so force a reset*/
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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: /*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:
|
|
|
|
They also get the same action as default, so they are commented-out
|
|
intentionally. A smart compiler would do the right thing and generate
|
|
no code if not commented-out, but we don't seem to have any smart
|
|
compilers these days.
|
|
*/
|
|
default:
|
|
return (ERR_FATAL);
|
|
}
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static void matcdstrategy(struct bio *bp)
|
|
{
|
|
struct matcd_data *cd;
|
|
struct bio_queue_head *dp;
|
|
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, offset#=%jx bcount=%ld\n",
|
|
ldrive,(unsigned long)bp,(intmax_t)bp->bio_offset,
|
|
bp->bio_bcount);
|
|
|
|
|
|
printf("ldrive %x controller %x cd %lx\n",ldrive,controller,
|
|
(unsigned long)cd);
|
|
#endif /*DEBUGIO*/
|
|
|
|
|
|
if (ldrive >= TOTALDRIVES || bp->bio_offset < 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;
|
|
}
|
|
|
|
#ifdef NOTEDIT42
|
|
if (matcd_partition(bp->bio_dev) != RAW_PART) {
|
|
if (bounds_check_with_label(bp,&cd->dlabel,1) <= 0) {
|
|
goto done;
|
|
}
|
|
}
|
|
#endif /*NOTEDIT42*/
|
|
bp->bio_resid=0;
|
|
|
|
s=splbio(); /*Make sure we don't get intr'ed*/
|
|
|
|
dp=&request_head[controller]; /*Pointer to controller queue*/
|
|
|
|
bioq_disksort(dp,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(dp); /*Ok, with our newly sorted queue,
|
|
see if we can start an I/O operation
|
|
right now*/
|
|
splx(s); /*Return priorities to normal*/
|
|
/*All the BSD books say do this here,
|
|
but some drivers are doing it after
|
|
disksort, which seems dangerous.*/
|
|
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(struct bio_queue_head *dp)
|
|
{
|
|
struct matcd_data *cd;
|
|
struct bio *bp;
|
|
struct partition *p;
|
|
int part,ldrive,controller;
|
|
int s;
|
|
|
|
s=splbio();
|
|
bp=bioq_first(dp);
|
|
if (bp==0) { /*Nothing on this controller queue*/
|
|
splx(s);
|
|
wakeup((caddr_t)&matcd_data->status); /*Wakeup any blocked*/
|
|
return; /* opens, ioctls, etc*/
|
|
}
|
|
ldrive=matcd_ldrive(bp->bio_dev);
|
|
controller=matcd_controller(bp->bio_dev);
|
|
cd= &matcd_data[ldrive];
|
|
|
|
#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;
|
|
}
|
|
|
|
bioq_remove(&request_head[controller], bp); /*Delete off queue*/
|
|
|
|
/* Ok, the controller is idle (not necessarily the drive) and so
|
|
get the command to do and issue it
|
|
*/
|
|
part=matcd_partition(bp->bio_dev);
|
|
p=cd->dlabel.d_partitions + part;
|
|
|
|
if_state[controller] |= BUSBUSY;/*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; /*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.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static int matcdioctl(dev_t dev, unsigned long command,
|
|
caddr_t addr, int flags,
|
|
struct thread *td)
|
|
{
|
|
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) { /*Allow close even if door open*/
|
|
return(matcd_doorclose(ldrive, cdrive, controller));
|
|
}
|
|
if (command==CDIOCEJECT) { /*Allow with tray empty or full*/
|
|
return(matcd_eject(ldrive, cdrive, controller));
|
|
}
|
|
|
|
if (!(cd->flags & MATCDLABEL)) {/*Did we read TOC OK? on open?*/
|
|
return(EIO); /*then drive really isn't ready*/
|
|
}
|
|
|
|
switch(command) {
|
|
case DIOCGDINFO:
|
|
*(struct disklabel *) addr = cd->dlabel;
|
|
return(0);
|
|
|
|
#ifdef NOTEDIT42
|
|
case DIOCWDINFO:
|
|
case DIOCSDINFO:
|
|
if ((flags & FWRITE) == 0) {
|
|
return(EBADF);
|
|
}
|
|
else {
|
|
return setdisklabel(&cd->dlabel,
|
|
(struct disklabel *) addr, 0);
|
|
}
|
|
#endif /*NOTEDIT42*/
|
|
|
|
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 CDIOCPLAYBLOCKS:
|
|
return(matcd_playblk(ldrive, cdrive, controller,
|
|
(struct ioc_play_blocks *) 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:
|
|
return(EINVAL);
|
|
|
|
/*SRC OUT SRC OUT*/
|
|
case CDIOCSETSTEREO: /*0 -> L 1 -> R*/
|
|
case CDIOCSETMUTE: /*0 -> NULL 1 -> NULL*/
|
|
case CDIOCSETLEFT: /*0 -> L&R 1 -> NULL*/
|
|
case CDIOCSETRIGHT: /*0 -> NULL 1 -> L&R*/
|
|
/*Adjust audio routing*/
|
|
return(matcd_route(ldrive, cdrive, controller,
|
|
command));
|
|
|
|
case CDIOCSETPATCH:
|
|
return(matcd_patch(ldrive, cdrive, controller,
|
|
(struct ioc_patch *) addr));
|
|
|
|
case CDIOCPITCH:
|
|
return(matcd_pitch(ldrive, cdrive, controller,
|
|
(struct ioc_pitch *) addr));
|
|
|
|
case CDIOCSTART: /*Only reason this isn't*/
|
|
return(EINVAL); /*implemented is I can't find out*/
|
|
/*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 CDIOCREADSUBCHANNEL:
|
|
return(matcd_read_subq(ldrive, cdrive, controller,
|
|
(struct ioc_read_subchannel *) addr));
|
|
|
|
case CDIOCCAPABILITY: /*Request drive/driver capability*/
|
|
return(matcd_igot((struct ioc_capability *) addr));
|
|
|
|
case CDIOCRESET: /*There is no way to hard reset*/
|
|
return(EINVAL); /*just one drive*/
|
|
|
|
default:
|
|
return(ENOTTY);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------
|
|
matcdsize - Reports how many blocks exist on the disc.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
static 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_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 is zero*/
|
|
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;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[12];
|
|
int retry;
|
|
|
|
retry=10;
|
|
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 the error data or
|
|
the drive will reject subsequent commands.
|
|
*/
|
|
|
|
i=get_error(port, ldrive, cdrive);
|
|
#ifdef TAKEOUT
|
|
if (media_chk(cd,i,ldrive,0)) {
|
|
return(-1);
|
|
}
|
|
#endif
|
|
if (chk_error(i)==ERR_FATAL) { /*Should not chg here*/
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: command failed, status %x\n",
|
|
ldrive,z);
|
|
#endif /*DEBUGOPEN*/
|
|
return(-1);
|
|
}
|
|
tsleep((caddr_t)&nextcontroller, PRIBIO, "matvi2", hz);/*<25>*/
|
|
if ((--retry)==0) return(-1);
|
|
#ifdef DEBUGOPEN
|
|
printf("matcd%d: Retrying err was %d",ldrive,i);
|
|
#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 *state)
|
|
{
|
|
matcd_blockread((int)state);
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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;
|
|
short iftype;
|
|
struct bio *bp;
|
|
struct bio_queue_head *dp;
|
|
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];
|
|
|
|
dp=&request_head[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 DEBUGIOPLUS
|
|
printf("matcd%d: A mbx %x bp %x b_bcount %x sz %x\n",
|
|
ldrive,(unsigned int)mbx,(unsigned int)bp,
|
|
(unsigned int)bp->b_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_offset %jd\n",
|
|
ldrive,(intmax_t)bp->bio_offset);
|
|
#endif /*DEBUGIO*/
|
|
|
|
blknum=bp->bio_offset/mbx->sz+
|
|
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 %x\n",ldrive,MATCD_READ_2+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; /*Reset read count*/
|
|
#endif /*DEBUGIO*/
|
|
if (iftype==0) { /*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 { /*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 offset %jd [Soft]\n",
|
|
ldrive,matcderrors[i],(intmax_t)bp->bio_offset);
|
|
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(dp);/*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 offset %jd\n",
|
|
ldrive,matcderrors[errtyp],(intmax_t)bp->bio_offset);
|
|
|
|
if (media_chk(cd,errtyp,ldrive,0)==0) {
|
|
errtyp=chk_error(errtyp);
|
|
if (errtyp==ERR_RETRY) {/*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;
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
The other error types are either something very bad or the media
|
|
has been removed by the user. In both cases there is no retry
|
|
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(dp);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
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) { /*Drive was locked via open*/
|
|
return(EINVAL); /*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); /*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 cmd impl lck*/
|
|
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; /*Get I/O port base*/
|
|
|
|
zero_cmd(cmd); /*Initialize command buffer*/
|
|
cmd[0]=LOCK; /*Unlock drive*/
|
|
|
|
if (action) { /*They want to lock the door?*/
|
|
cd->flags |= MATCDLOCK; /*Remember we did this*/
|
|
cmd[1]=1; /*Lock Door command*/
|
|
} else {
|
|
cd->flags &= ~MATCDLOCK;/*Remember we did this*/
|
|
/*Unlock Door command*/
|
|
}
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
return(i); /*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;
|
|
int i;
|
|
|
|
lockbus(controller, ldrive); /*Request bus*/
|
|
i=matcd_volinfo(ldrive); /*Check on manual change state*/
|
|
unlockbus(controller, ldrive); /*Release bus*/
|
|
if (i==-1) { /*Did media change manually*/
|
|
return(EIO);
|
|
}
|
|
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 most/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+1];
|
|
struct cd_toc_entry *from;
|
|
struct cd_toc_entry *to;
|
|
int len,trk,i,z,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[5];
|
|
unsigned char lowtrk, hightrk;
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
lowtrk=0xff;
|
|
hightrk=0x00;
|
|
|
|
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("%d Track %d addr/ctrl %x m:%d s:%d f:%d\n",trk,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 (data[2]>hightrk) hightrk=data[2]; /*Determine min*/
|
|
if (data[2]<lowtrk) lowtrk=data[2]; /*and max track #*/
|
|
|
|
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*/
|
|
} else {
|
|
entries[trk].addr.lba=msf_to_blk(&data[4]);
|
|
}
|
|
}
|
|
entries[trk].control=data[2]; /*Copy from last valid track*/
|
|
entries[trk].track=0xaa; /*Lead-out*/
|
|
entries[trk].addr_type=ioc_entry->address_format;/*Type*/
|
|
if (ioc_entry->address_format == CD_MSF_FORMAT) {
|
|
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];
|
|
} else {
|
|
entries[trk].addr.lba=msf_to_blk((char * )&cd->volinfo.vol_msf);
|
|
}
|
|
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; /*What did they want?*/
|
|
if (i==0xaa) i=hightrk+1; /*Give them lead-out info*/
|
|
else if (i==0) i=lowtrk; /*Give them lowest track found*/
|
|
|
|
from=&entries[i-1];
|
|
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_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) {
|
|
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.
|
|
<37> Note that cdcontrol will request the format be LBA when that
|
|
mode is selected, but cdcontrol really wants the replies returned
|
|
in MSF. Sounds like a bug in cdcontrol, but always returning the
|
|
results in MSF for SUBQ queries is what the IDE driver does, so
|
|
that's what we will do as well. Set SUBQRETREQUESTED when the driver
|
|
is to return in whatever format was requested.
|
|
*/
|
|
|
|
#ifdef SUBQRETREQUESTED
|
|
subq.what.position.data_format=sqp->address_format;
|
|
#else /*SUBQRETREQUESTED*/
|
|
subq.what.position.data_format=CD_MSF_FORMAT; /*Always ret MSF*/
|
|
#endif /*SUBQRETREQUESTED*/
|
|
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];
|
|
|
|
if (sqp->address_format==CD_MSF_FORMAT) { /*Req MSF format*/
|
|
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];
|
|
} else { /*Req LBA format*/
|
|
subq.what.position.absaddr.lba=msf_to_blk(&data[4]);
|
|
subq.what.position.reladdr.lba=msf_to_blk(&data[7]);
|
|
}
|
|
|
|
/* 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
|
|
/*-----------------------------------------------------------------------------
|
|
The following functions are related to the audio playback
|
|
capabilities of the drive. They can be omitted from the
|
|
finished driver using the FULLDRIVER conditional.
|
|
|
|
The full set of features the drive is capable of are currently
|
|
not implemented but will be added in upcoming releases.
|
|
-----------------------------------------------------------------------------*/
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_playtracks - Plays one or more audio tracks
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_playtracks(int ldrive, int cdrive, int controller,
|
|
struct ioc_play_track *pt)
|
|
{
|
|
struct matcd_data *cd;
|
|
int start,end;
|
|
int i,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
start=pt->start_track;
|
|
end=pt->end_track;
|
|
|
|
if (start < 1 || /*Starting track valid?*/
|
|
end < 1 || /*Ending track valid?*/
|
|
start > end || /*Start higher than end?*/
|
|
end > cd->volinfo.trk_high) /*End track higher than disc size?*/
|
|
return(ESPIPE); /*Track out of range*/
|
|
|
|
lockbus(controller, ldrive); /*<16>Request bus*/
|
|
i=matcd_setmode(ldrive, MODE_DA);/*Force drive into audio mode*/
|
|
unlockbus(controller, ldrive); /*<16>Release bus*/
|
|
if (i!=0) {
|
|
return(i); /*Not legal for this media?*/
|
|
}
|
|
zero_cmd(cmd);
|
|
cmd[0]=PLAYTRKS; /*Play Audio Track/Index*/
|
|
cmd[1]=start;
|
|
cmd[2]=pt->start_index;
|
|
cmd[3]=end;
|
|
cmd[4]=pt->end_index;
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Play track results %d \n",ldrive,i);
|
|
#endif /*DEBUGIOCTL*/
|
|
if (i==0) cd->status=CD_AS_PLAY_IN_PROGRESS; /*<14>*/
|
|
return(i);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_playmsf - Plays between a range of blocks
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_playmsf(int ldrive, int cdrive, int controller,
|
|
struct ioc_play_msf *pt)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: playmsf %2x %2x %2x -> %2x %2x %2x\n",
|
|
ldrive,pt->start_m, pt->start_s, pt->start_f, pt->end_m,
|
|
pt->end_s,pt->end_f);
|
|
#endif /*DEBUGIOCTL*/
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
if ((cd->volinfo.vol_msf[0]==0 &&
|
|
cd->volinfo.vol_msf[1]<2) || /*Must be after 0'1"75F*/
|
|
msf_to_blk((char *)&pt->start_m) >
|
|
msf_to_blk((char *)&cd->volinfo.vol_msf)) {
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Invalid block combination\n",ldrive);
|
|
#endif /*DEBUGIOCTL*/
|
|
return(ESPIPE); /*Track out of range*/
|
|
}
|
|
|
|
|
|
lockbus(controller, ldrive); /*<16>Request bus*/
|
|
i=matcd_setmode(ldrive, MODE_DA);/*Force drive into audio mode*/
|
|
unlockbus(controller, ldrive); /*<16>Release bus*/
|
|
if (i!=0) {
|
|
return(i); /*Not legal for this media?*/
|
|
}
|
|
zero_cmd(cmd);
|
|
cmd[0]=PLAYBLOCKS; /*Play Audio Blocks*/
|
|
cmd[1]=pt->start_m;
|
|
cmd[2]=pt->start_s;
|
|
cmd[3]=pt->start_f;
|
|
cmd[4]=pt->end_m;
|
|
cmd[5]=pt->end_s;
|
|
cmd[6]=pt->end_f;
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
if (i==0) cd->status=CD_AS_PLAY_IN_PROGRESS; /*<14>*/
|
|
return(i);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_playblk - Plays between a range of blocks
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_playblk(int ldrive, int cdrive, int controller,
|
|
struct ioc_play_blocks *pb)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char blkstart[3];
|
|
unsigned char blkend[3];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: playblocks %x %d\n", ldrive,pb->blk, pb->len);
|
|
#endif /*DEBUGIOCTL*/
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
i=msf_to_blk((char *)&cd->volinfo.vol_msf);
|
|
if (pb->len <1 || /*Must ask for 1 or more blks*/
|
|
pb->blk <0 || /*Must not be negative*/
|
|
pb->blk > i || /*Beyond end of disc*/
|
|
(pb->blk+pb->len) > i) { /*Beyond end of disc*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Block request out of range\n",ldrive);
|
|
#endif /*DEBUGIOCTL*/
|
|
return(ESPIPE); /*Track out of range*/
|
|
}
|
|
blk_to_msf(pb->blk,(char *)&blkstart);
|
|
blk_to_msf(pb->blk+pb->len,(char *)&blkend);
|
|
|
|
lockbus(controller, ldrive); /*<16>Request bus*/
|
|
i=matcd_setmode(ldrive, MODE_DA);/*Force drive into audio mode*/
|
|
unlockbus(controller, ldrive); /*<16>Release bus*/
|
|
if (i!=0) {
|
|
return(i); /*Not legal for this media?*/
|
|
}
|
|
zero_cmd(cmd);
|
|
cmd[0]=PLAYBLOCKS; /*Play Audio Blocks*/
|
|
cmd[1]=blkstart[0];
|
|
cmd[2]=blkstart[1];
|
|
cmd[3]=blkstart[2];
|
|
cmd[4]=blkend[0];
|
|
cmd[5]=blkend[1];
|
|
cmd[6]=blkend[2];
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
if (i==0) cd->status=CD_AS_PLAY_IN_PROGRESS; /*<14>*/
|
|
return(i);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_pause - Pause or Resume audio playback
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_pause(int ldrive, int cdrive, int controller, int action)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,z,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
zero_cmd(cmd);
|
|
cmd[0]=NOP; /*<14>Just find out whats going on*/
|
|
|
|
lockbus(controller, ldrive); /*<16>Request bus*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd); /*<14>*/
|
|
i=waitforit(10*TICKRES,DTEN,port,"matpau"); /*<25>*/
|
|
z=get_stat(port,ldrive); /*<14>Read status byte*/
|
|
if ((z & MATCD_ST_ERROR)) { /*<14>Something went wrong*/
|
|
i=get_error(port, ldrive, cdrive); /*<14>*/
|
|
unlockbus(controller, ldrive); /*<16>Release bus*/
|
|
return(EIO); /*<14>*/
|
|
} /*<14>*/
|
|
unlockbus(controller, ldrive); /*<16>Release bus*/
|
|
|
|
if ((z & MATCD_ST_AUDIOBSY)==0 && /*<14>If drive is idle*/
|
|
cd->status==CD_AS_PLAY_IN_PROGRESS) { /*<14>but was playing*/
|
|
cd->status=CD_AS_PLAY_COMPLETED; /*<14>then its done*/
|
|
return(0);
|
|
}
|
|
|
|
if (action) { /*<14>Set state for subq ioctl*/
|
|
#ifndef KRYTEN
|
|
if (cd->status==CD_AS_PLAY_IN_PROGRESS) {/*<14>Don't resume*/
|
|
return(0); /*<14>if already playing*/
|
|
} /*<14>Max Headroom sound occurs*/
|
|
#endif /*KRYTEN*/
|
|
cd->status=CD_AS_PLAY_IN_PROGRESS; /*<14>to read*/
|
|
} else { /*<14>There is no way to ask the*/
|
|
cd->status=CD_AS_PLAY_PAUSED;/*<14>drive if it is paused*/
|
|
} /*<14>*/
|
|
|
|
cmd[0]=PAUSE; /*Pause or Resume playing audio*/
|
|
cmd[1]=action;
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Pause / Resume results %d \n",ldrive,i);
|
|
#endif /*DEBUGIOCTL*/
|
|
return(i);
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_stop - Stop audio playback
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_stop(int ldrive, int cdrive, int controller)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
if ((cd->flags & MATCDLABEL)==0)
|
|
return(EIO); /*Refuse after chg error*/
|
|
|
|
zero_cmd(cmd);
|
|
cmd[0]=ABORT; /*Abort playing audio*/
|
|
i=docmd(cmd,ldrive,cdrive,controller,port); /*Issue command*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Abort results %d \n",ldrive,i);
|
|
#endif /*DEBUGIOCTL*/
|
|
cd->status=CD_AS_PLAY_COMPLETED;/*<14>the drive if it is paused*/
|
|
return(i);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_level - Read or set the audio levels
|
|
<12> New for Edit 12
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_level(int ldrive, int cdrive, int controller,
|
|
struct ioc_vol * level, int action)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,z,port;
|
|
unsigned char c;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
unsigned char data[5];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
zero_cmd(cmd);
|
|
if (action==CDIOCSETVOL) { /*We are setting new volume settings*/
|
|
|
|
/* Here we set the volume levels. Note that the same command
|
|
also sets the patching (routing) of audio, so we have to rely
|
|
on previously-stored settings to fill in these fields.
|
|
*/
|
|
cmd[0]=MODESELECT; /*Write drive settings*/
|
|
cmd[1]=AUDIOPARM; /*Audio/routing settings*/
|
|
|
|
/* Although the drive allows a left and right channel volume to be
|
|
specified separately, the drive refuses the settings if the
|
|
values are different.
|
|
*/
|
|
c=level->vol[0] | level->vol[1]; /*Or them together*/
|
|
|
|
cmd[4]=cd->volume[0]=c; /*Channel 0 (Left) volume*/
|
|
cmd[6]=cd->volume[1]=c; /*Channel 1 (Right) volume*/
|
|
cmd[3]=cd->patch[0]; /*Channel 0 (Left) patching*/
|
|
cmd[5]=cd->patch[1]; /*Channel 1 (Right) patching*/
|
|
i=docmd(cmd,ldrive,cdrive,controller,port);/*Issue cmd*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Volume set %d\n",ldrive,i);
|
|
#endif /*DEBUGIOCTL*/
|
|
return(i);
|
|
} else { /*Read existing settings*/
|
|
|
|
|
|
/* This code reads the settings for the drive back - note that
|
|
volume and patching are both returned so we have to keep
|
|
both internally.
|
|
*/
|
|
cmd[0]=MODESENSE; /*Read drive settings*/
|
|
cmd[1]=AUDIOPARM; /*Audio/routing settings*/
|
|
lockbus(controller, ldrive); /*<16>Request bus*/
|
|
matcd_slowcmd(port,ldrive,cdrive,cmd);
|
|
i=waitforit(10*TICKRES,DTEN,port,"matlvl"); /*<25>*/
|
|
matcd_pread(port, 5, data); /*Read data returned*/
|
|
z=get_stat(port,ldrive);/*Read status byte*/
|
|
unlockbus(controller, ldrive); /*<16>Release bus*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Data got was %x %x %x %x %x ",ldrive,
|
|
data[0],data[1],data[2], data[3],data[4]);
|
|
printf("status byte %x\n",z);
|
|
#endif /*DEBUGIOCTL*/
|
|
cd->volume[0]=level->vol[0]= /*Channel 0 (Left) volume*/
|
|
data[2];
|
|
cd->volume[1]=level->vol[1]= /*Channel 1 (Right) volume*/
|
|
data[4];
|
|
level->vol[2]=level->vol[3]=0; /*Channel 2 & 3 not avail*/
|
|
|
|
cd->patch[0]=data[1]; /*Channel 0 (Left) patching*/
|
|
cd->patch[1]=data[3]; /*Channel 1 (Right) patching*/
|
|
|
|
return(0);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_routing - Set the audio routing (patching)
|
|
<12> New for Edit 12
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_route(int ldrive, int cdrive, int controller,
|
|
int command)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,port;
|
|
unsigned char l,r;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
zero_cmd(cmd);
|
|
switch (command) {
|
|
case CDIOCSETMUTE:
|
|
l=r=0;
|
|
break;
|
|
|
|
case CDIOCSETLEFT:
|
|
l=r=OUTLEFT;
|
|
break;
|
|
|
|
case CDIOCSETRIGHT:
|
|
l=r=OUTRIGHT;
|
|
break;
|
|
|
|
default:
|
|
case CDIOCSETSTEREO:
|
|
l=OUTLEFT;
|
|
r=OUTRIGHT;
|
|
break;
|
|
}
|
|
|
|
/* Here we set the volume levels. Note that the same command
|
|
also sets the patching (routing) of audio, so we have to rely
|
|
on previously-stored settings to fill in these fields.
|
|
*/
|
|
cmd[0]=MODESELECT; /*Write drive settings*/
|
|
cmd[1]=AUDIOPARM; /*Audio/routing settings*/
|
|
|
|
|
|
/* Although the drive allows a left and right channel volume to be
|
|
specified separately, the drive refuses the settings if the
|
|
values are different.
|
|
*/
|
|
cmd[4]=cd->volume[0]; /*Channel 0 (Left) volume*/
|
|
cmd[6]=cd->volume[1]; /*Channel 1 (Right) volume*/
|
|
cmd[3]=cd->patch[0]=l; /*Channel 0 (Left) patching*/
|
|
cmd[5]=cd->patch[1]=r; /*Channel 1 (Right) patching*/
|
|
i=docmd(cmd,ldrive,cdrive,controller,port);/*Issue cmd*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Routing set %d\n",ldrive,i);
|
|
#endif /*DEBUGIOCTL*/
|
|
return(i);
|
|
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_patch - Set the audio routing (patching)
|
|
<12> New for Edit 12
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_patch(int ldrive, int cdrive, int controller,
|
|
struct ioc_patch * routing)
|
|
{
|
|
struct matcd_data *cd;
|
|
int i,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
zero_cmd(cmd);
|
|
|
|
/* Here we set the volume levels. Note that the same command
|
|
also sets the patching (routing) of audio, so we have to rely
|
|
on previously-stored settings to fill in these fields.
|
|
*/
|
|
cmd[0]=MODESELECT; /*Write drive settings*/
|
|
cmd[1]=AUDIOPARM; /*Audio/routing settings*/
|
|
|
|
|
|
/* Although the drive allows a left and right channel volume to be
|
|
specified separately, the drive refuses the settings if the
|
|
values are different.
|
|
*/
|
|
cmd[4]=cd->volume[0]; /*Channel 0 (Left) volume*/
|
|
cmd[6]=cd->volume[1]; /*Channel 1 (Right) volume*/
|
|
cmd[3]=cd->patch[0]= /*Channel 0 (Left) patching*/
|
|
(routing->patch[0] & 0x03);
|
|
cmd[5]=cd->patch[1]= /*Channel 1 (Right) patching*/
|
|
(routing->patch[1] & 0x03);
|
|
i=docmd(cmd,ldrive,cdrive,controller,port);/*Issue cmd*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Routing set %d\n",ldrive,i);
|
|
#endif /*DEBUGIOCTL*/
|
|
return(i);
|
|
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
matcd_pitch - Change audio playback rate
|
|
Apart from making things sound funny, the only
|
|
other application might be Karaoke. Ugh.
|
|
<12> New for Edit 12
|
|
-----------------------------------------------------------------------------*/
|
|
|
|
static int matcd_pitch(int ldrive, int cdrive, int controller,
|
|
struct ioc_pitch * speed)
|
|
{
|
|
struct matcd_data *cd;
|
|
short i;
|
|
int z,port;
|
|
unsigned char cmd[MAXCMDSIZ];
|
|
|
|
cd=&matcd_data[ldrive];
|
|
port=cd->iobase;
|
|
|
|
zero_cmd(cmd);
|
|
|
|
/* This function sets the audio playback rate. In SCSI devices this is
|
|
referred to as the logical block addresses per second parameter.
|
|
Uh huh. Sounds like they didn't want anyone to find it.
|
|
Anyway, a study found that no one else has implemented this ioctl
|
|
but the capability does exist in the SCSI standard so I am following
|
|
the SCSI scheme even though it really doesn't fit this drive well.
|
|
|
|
I originally defined the parameter to this ioctl as -32767 to -1
|
|
being "play slower", 0x0000 flat and 1 to 32767 being "play faster"
|
|
within the scale allowed by the device. The value is scaled to fit
|
|
the range allowed by the device and any excess is treated as being
|
|
the positive or negative limit. No ioctl input pitch value is
|
|
considered invalid.
|
|
|
|
This device has a +/- 13% playback pitch specified by a range
|
|
-130 to +130. The drive does a hard enforcement on this.
|
|
|
|
SCSI defines a 16 bit LBAS count, and a "multiplier" that
|
|
is either x1 or x(1/256). The Matsushita drive only provides
|
|
10 bits total for indicating pitch so the LSbits are discarded.
|
|
*/
|
|
|
|
cmd[0]=MODESELECT; /*Write drive settings*/
|
|
cmd[1]=SPEEDPARM; /*Audio speed settings*/
|
|
|
|
i=speed->speed>>7; /*Scale down to our usable range*/
|
|
|
|
if (i!=0) { /*Real pitch value*/
|
|
if (i < -130) i=-130; /*Force into range we support*/
|
|
else if (i > 130) i=130;
|
|
cmd[3]=((i>>8)&0x03) | 0x04; /*Get upper bits*/
|
|
cmd[4]=(i & 0xff); /*Set lower bits*/
|
|
}
|
|
z=docmd(cmd,ldrive,cdrive,controller,port);/*Issue cmd*/
|
|
#ifdef DEBUGIOCTL
|
|
printf("matcd%d: Pitch set %d\n",ldrive,i);
|
|
#endif /*DEBUGIOCTL*/
|
|
return(z);
|
|
}
|
|
|
|
#endif /*FULLDRIVER*/
|
|
|
|
/*End of matcd.c*/
|
|
|