home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.sys.sun.hardware:5652 comp.sys.sun.misc:5282 comp.multimedia:3372
- Path: sparky!uunet!pmcgw!ds5200.personal-media.co.jp
- From: ishikawa@ds5200.personal-media.co.jp (Chiaki Ishikawa)
- Newsgroups: comp.sys.sun.hardware,comp.sys.sun.misc,comp.multimedia
- Subject: SUMMARY. Non-SUN SCSI CDROM. It DOES work.
- Message-ID: <ISHIKAWA.92Nov16171151@ds5200.personal-media.co.jp>
- Date: 16 Nov 92 08:11:51 GMT
- Sender: news@pmcgw.personal-media.co.jp
- Reply-To: ishikawa@personal-media.co.jp
- Followup-To: comp.sys.sun.hardware
- Organization: Personal Media Corp., Tokyo Japan
- Lines: 260
- Nntp-Posting-Host: ds5200
-
-
- About 3 weeks ago, I asked the net if a non-SUN SCSI CDROM drive can
- be hooked up to a Sun workstation to read the files on CDROM.
-
- I have received many replies. In the end, I could use a little program
- posted by Bob Hayes earlier this year to connect DENON DS-253 CD drive
- to our sparcstation and read a mounted CDROM file system!
-
- It took me a while to post the summary since I wanted to test the
- little program to see if it works with our CDROM drive, and there was
- a little trepidation on my side to connect the unknown hardware to
- Sparcstation, but I am happy to report that I've found it works!
-
- Thank you again everyone for the answers!
-
- Here are the EDITED answers.
-
- -------------------------------------------------------
- Guy Harris
- From: pmcgw!uunet!auspex.com!guy (Guy Harris)
-
- The Sun driver probably assumes that the CD-ROM drive can be put into
- "512 bytes per block" mode, or is always in that mode.
-
- The "hsfs_*.o" files implement a High Sierra/ISO 9660 file system, and
- in 4.1.2 and later releases also implements the "Rock Ridge"
- extensions to better support UNIX-style file names and the like.
-
- ----------------------------------------
- Clifton Liles
- From: Clifton Liles 282-4736 <pmcgw!uunet!sweetpea.jsc.nasa.gov!liles>
-
- My information is other SCSI players will work for everything BUT
- booting. You can not build a system from the distrbution media!
-
- [Ishikawa comment: I wonder why.]
-
- ----------------------------------------
- Dan Lanciani
- Return-Path: <pmcgw!uunet!burrhus.harvard.edu!ddl>
-
- NEC CDR-72 doesn't work with a Sun-3, using either the SCSI-2 or
- SCSI-3 host adapters. It generated a string of horrible SCSI bus
- errors and corrupted the hard disk to the extent that I had to
- reformat...
-
- [Ishikawa comment: My colleague who actually tested the connection
- told me that he experienced a disk error when he switched on/off the
- CD drive while the system is running. So DON'T try to turn on/off the
- CD drive WHILE the system is running!]
-
- ----------------------------------------
- Derek Fawcus
- Return-Path: <pmcgw!uunet!eyrie.demon.co.uk!df>
-
- You could look at the linux CDROM file system sources, they're
- available on tsx-11.mit.edu and AFAIK it fully implements the ISO
- format with rock ridge extensions.
-
- ----------------------------------------
- Andrew Speedie
- From: uunet!cs.bham.ac.uk!A.H.Speedie-SE0
-
- According to a Sun engineer, most CD drives will work on SUN 3/80 and
- up, without any special modification to the kernel. The only problem
- is that you can only boot from a SUN CD drive and they are SONY drives
- with a firmware upgrade. And also you can't boot a 3/80 from a CD.
-
- [ishikawa comment: I have not tested Sun3 hardware yet.]
-
- ----------------------------------------
- Kasukawa, Masaatsu
- From: kasukawa@gssm.otsuka.tsukuba.ac.jp (Masaatsu Kasukawa)
- Hikita, Hiroyuki
- Return-Path: <hikita@trl.mei.co.jp>
-
- From the two gentlemen above, I have received a copy of an article Bob
- Hayes posted earlier this year to comp.sun.hardware. This ultimately
- enabled me to connect the DENON DS-253 CDROM drive to a Sparcstation
- successfully! (Unfortunately since it is encased in an external
- chassis, and I don't want to open the box right now, I don't know
- exactly whose CDROM drive is in the box.)
-
- For your information, I attach the copy of Bob Hayes article: I
- believe there must be many people wondering if they can connect
- non-SUN CDROM to Sunworkstations.
-
- Thank you again everyone for the information!
-
- ishikawa@personal-media.co.jp
-
- -------- quote --------------------------
-
- From: bob@henson.cc.wwu.edu (Bob Hayes)
- Newsgroups: comp.sys.sun.hardware
- Subject: SUMMARY: CD-ROMS- not SUN/SONY
- Summary: CDROM drives other than Sun/Sony
- Keywords: cdrom drives
- Message-ID: <1992Feb5.221925.24826@henson.cc.wwu.edu>
- Date: 5 Feb 92 22:19:25 GMT
- Organization: Western Washington University
- Lines: 156
-
-
- My original query- can you use a CD-ROM drive other than
- a Sony for Suns...Specifically a Toshiba 3301B from a
- NeXT... generated several replies, from YES to NO-WAY...
-
- The answer is YES for data, probably yes for audio.
- For other drives than Toshiba??? Lets hear your results
- when you try it!!
-
- begin SOAPBOX
- Let me say *THANKS* to EVERYONE who wrote to express
- ANY thoughts !! We need all the discusion that we can handle,
- we need all the ideas that we can think of, and then we can
- sift for what ideas we need most, and save some for later.
-
- This network stuff is the most far reaching, inclusive,
- responsive, and open communications forum to have existed
- on the planet! (add more adjectives as required)
- May we continue the free, open interchange of ideas and
- information!
- end SOAPBOX
-
- So what about the CD-ROM stuff??
- The problem seems to be in the sector size read from the
- scsi interface--- Sun expects 512 bytes, the default format
- of the CD1 spec is (mode 1, with ECC) 2048 bytes per 'block'.
-
- Is there an ftp site for the (red/blue/green?? rainbow) books
- which have the CD specs and mode descriptions???
-
- This is on a Sun LPC, SunOS 4.1.1b--
- Patches which I tried in the kernel were not effective.
- I posted. I read the mail. I tried it. IT WORKED!!
-
- And the GOOD STUFF, Thanks and a tip 'o the hat to Ralph,
- who wrote:
-
- ~From: rkling@austin.intel.com (Ralph Kling)
- YES, it is possible! I have managed to connect one to a SS-2.
- However, there are a few differences between the SUN (=SONY) drive
- and the Toshiba drive. In particular, the SUN drive seems to use
- a default transfer block size of 512 bytes versus 2048 for the
- Toshiba. I wrote a little program that uses SUNs user-scsi-driver
- to correct this. You have to run that before trying to mount the
- drive! The "unrecognized vendor" message can be neglected.
- If you want to use the CD-audio capabilities you'll have to write
- your own driver (also via SUNs user-scsi-driver) since those commands
- are totally different from the SUN drive. Call Toshiba of America
- (sorry, I lost the number) and order the CD rom drive spec from them
- (will cost you $15).
- One more thing: The scsi-id for the CD rom needs to be 6.
- Good luck!!!
-
- Ralph
-
-
- Here is the program to set the transfer length to 512 bytes:
-
- -----------
- # include <sys/types.h>
- # include <sys/buf.h>
- # include <sun/dkio.h>
- # include <scsi/targets/srdef.h>
- # include <scsi/impl/uscsi.h>
- # include <strings.h>
-
- # include <stdio.h>
-
- char cdrom[] = "/dev/rsr0";
-
- extern char * cdrom_status();
-
- /* group 0 commands */
-
- #define TEST 0x00
- #define REZERO 0x01
- #define SENSEREQ 0x03
- #define READ 0x08
- #define SEEK 0x0b
- #define NOP 0x0d
- #define INQ 0x12
- #define MODESEL 0x15
- #define RESERVE 0x16
- #define RELEASE 0x17
- #define MODESENSE 0x1a
- #define STARTSTOP 0x1b
- #define DIAGRCV 0x1c
- #define DIAGSND 0x1d
- #define MEDIUMLOCK 0x1e
-
- /* group 1 commands */
-
- #define READCAP 0x25
- #define READEXT 0x28
- #define SEEKEXT 0x2b
-
- /* group 6 commands */
-
- #define AUDIOTRACK 0xc0
- #define AUDIOPLAY 0xc1
- #define AUDIOSTILL 0xc2
- #define AUDIOSTOP 0xc3
- #define EJECT 0xc4
- #define CLOSE 0xc5
- #define AUDIOSUB 0xc6
- #define AUDIODISK 0xc7
- #define ROMMODE 0xc8
-
- /***/
-
- #define CMDLEN(cmd) ((cmd >= 0x20) ? 10 : 6)
-
- /***/
-
- main() {
- int fd;
- int i;
- struct uscsi_cmd ucmd;
- char * s_command;
- char * s_buffer;
-
- if ((fd = open(cdrom, 0)) == -1) {
- fprintf(stderr, "open: ");
- perror(cdrom);
- exit(1);
- }
- s_command = (char *) malloc(10);
- if (s_command == NULL) {
- printf("malloc error (command)\n");
- exit(-1);
- }
- bzero(s_command, 10);
- s_buffer = (char *) malloc(256);
- if (s_buffer == NULL) {
- printf("malloc error (buffer)\n");
- exit(-1);
- }
- bzero(s_buffer, 256);
- s_command[0] = MODESEL;
- s_command[1] = 0x10;
- s_command[4] = 12;
- s_buffer[3] = 0x08;
- s_buffer[10] = 0x02;
- ucmd.uscsi_cdb = s_command;
- ucmd.uscsi_cdblen = 6;
- ucmd.uscsi_bufaddr = s_buffer;
- ucmd.uscsi_buflen = 4096;
- ucmd.uscsi_flags = USCSI_WRITE;
- i = ioctl(fd, USCSICMD, ucmd);
- close(fd);
- exit(i);
- }
- **************** end of Ralph's goodie ****************
- I can hear those odd-ball Cd-rom drives being hooked onto
- scsi busses already!
- Bob Hayes <bob@cs.wwu.edu>
- -------- quote end --------------------------
-