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Date:      Wed, 17 Oct 2001 15:17:22 -0700 (PDT)
From:      Nick Tonkin <nick@rlnt.net>
To:        freebsd-hardware@freebsd.org, freebsd-mobile@freebsd.org
Subject:   CD/CD-RW drive not working on Dell Inspiron 7500
Message-ID:  <Pine.BSF.4.21.0110171515130.77938-100000@world.tonkinresolutions.com>

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Hello FreeBSD folks,

I cannot get the CD-CD/RW drive to work under FreeBSD 4.4 on my Dell
inspiron  7500. I know this has been brought up before but I could not
find a solution.

The CD drive is made by Matsushita I think, product number is UJDA310L

Note that the behavior is different depending on whether or not there
is a disk in tghe drive at boot. When I start the machine with a disk in
it I get this:

 root@bomba ~>dmesg | grep -n acd0
78:acd0: CDROM <UJDA310 Program Loader> at ata1-master using PIO2
86:acd0: PREVENT_ALLOW - ILLEGAL REQUEST asc=20 ascq=00 error=00
87:acd0: PREVENT_ALLOW - ILLEGAL REQUEST asc=20 ascq=00 error=00
88:acd0: PREVENT_ALLOW - ILLEGAL REQUEST asc=20 ascq=00 error=00
89:acd0: READ_BIG - ILLEGAL REQUEST asc=20 ascq=00 error=00
90:acd0: PREVENT_ALLOW - ILLEGAL REQUEST asc=20 ascq=00 error=00

... and then:

root@bomba ~>mount /cdrom
cd9660: /dev/acd0c: Input/output error

... whereas if I start the machine without a disk in it, I get:

root@bomba ~>grep -n acd0 ~nick/foo
78:acd0: CD-RW <UJDA310> at ata1-master using PIO4
167:acd0: CD-RW <UJDA310> a4 ata1-master using PIO4
256:acd0: CD-RW <UJDA310> at ata1-master using PIO4
351:acd0: CD-RW <UJDA310> at ata1-master using PIO4
358:acd0: PREVENT_ALLOW - ILLEGAL REQUEST asc=20 ascq=00 error=00
359:acd0: PREVENT_ALLOW - ILLEGAL REQUEST asc=20 ascq=00 error=00
360:acd0: READ_BIG - ILLEGAL REQUEST asc=20 ascq=00 error=00
361:acd0: PREVENT_ALLOW - ILLEGAL REQUEST asc=20 ascq=00 error=00

... and then I can open the drive OK, insert a disk, close the drive
manually (the drawer is not drawn in by the motor as with other CD-ROM
drives I have used, or as with this one under windoze), and then I get:

root@bomba ~>mount /cdrom
cd9660: /dev/acd0c: Input/output error
 ... followed by the same series of errors.

Any help greatly appreciated.

root@bomba ~>uname -a
FreeBSD bomba.rlnt.net 4.4-RELEASE FreeBSD 4.4-RELEASE #0: Wed Oct 17
12:59:32
 PDT 2001     root@bomba.rlnt.net:/usr/src/sys/compile/WITHSOUND  i386


~~~~~~~~~~~
Nick Tonkin


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