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MATCD(4) FreeBSD/i386 Kernel Interfaces Manual MATCD(4) NAME matcd -- Matsushita (Panasonic) CD-ROM driver SYNOPSIS device matcd[0-4] at isa? port [?| addr] /dev/[r]matcd[0-15][a|c] /dev/[r]matcd[0-15]l[a|c] DESCRIPTION The matcd driver controls the CR-562-x and CR-563-x CD-ROM drives made by Matsushita-Kotobuki Electronics Industries, or Matsushita for short. These CD-ROM drives have been sold under the Panasonic (which is a trade name for Matsushita), Creative Labs (omniCD) and Reveal names, and have been included in computers made by Tandy, AST, Packard Bell and many oth- ers. These drives connect to the PC ISA bus through a proprietary host inter- face. This interface can exist as a stand-alone ISA card, or can be included on a sound card. DRIVER CONFIGURATION The matcd driver supports up to four host interfaces with up to four drives on each interface. Audio activity may occur on all drives simul- taneously. Data read operations are limited to one drive per host inter- face at any instant. To support multiple host interfaces, it is necessary to modify the entries in the kernel configuration file. Normally your system comes with the file /usr/src/sys/i386/conf/GENERIC. You should make a copy of this file and give it the name of your system. You can then edit the new file to include devices you want the system to support and delete the device entries that you don't want. In this file, you will find an entry like: device matcd0 at isa? port ? To support two host interfaces, change the file so it reads: device matcd0 at isa? port ? device matcd1 at isa? port ? (If you want to support up to three or four host interfaces, add addi- tional entries). Note that the kernel configuration does not need to be modified to sup- port up to four drives on a single host interface. It is also not neces- sary to have four drives on a single interface before adding a second interface. By default, matcd searches for the CD-ROM host interface adapters by using a table of known I/O ports on Creative host adapters (see options.h). Although this is very flexible, it can cause problems when your system has other devices that are located at the I/O ports that matcd is checking for CD-ROM host interfaces. In addition, checking mul- tiple locations can cause the boot process to take longer than it could. If you are having these problems, you can solve them by explicitly speci- fying where the CD-ROM host interfaces are located. For example, by default most SoundBlaster cards have the Matsushita CD-ROM host interface located at I/O port 0x230. (This is 0x10 above the I/O port for the audio section of the card.) If this is the case for your system, you could change where the kernel looks for the hardware by using the -c option at the kernel boot prompt. This will load the kernel and then give you the opportunity to change settings for any of the devices included the kernel. For example, to change the I/O port for matcd adapter zero to 0x340, you would type config> port matcd0c 0x340 If you recompile the kernel, you can change the entry in the kernel con- figuration file to specify a specific address by changing an entry like this: device matcd0 at isa? port 0x230 With this change, the matcd driver will only look at I/O port 0x230 for the first CD-ROM host interface and will not disturb any other I/O ports. Once you have adjusted the kernel configuration file, it is necessary to configure and recompile the kernel, install it and reboot for the changes to take effect. SUPPORTED HARDWARE At this time, there are only two known drive models that work with the matcd driver: Matsushita CR-562-x Matsushita CR-563-x Most resellers leave these original markings on the drives since the label also has the FCC, VDE, CSA and RU certification marks. Both of these drive models have motorized trays. There is also a custom version of these drives that does not have the volume control or head- phone jack (seen on some Tandy computers), but this drive also works with matcd. The Matsushita CR-522-x and CR-523-x CD-ROM drive is not usable with matcd. The CR-522 and CR-523 can also be identified from the front as it requires a CD-caddy. Drives with IDE interfaces must use an IDE driver. The TEAC CD-55 4X CD-ROM drive also uses the Creative/Panasonic interface but the TEAC drive is not compatible with the Matsushita CR-56x drives. The TEAC drive cannot be used with matcd. The most common source of host interface adapters for the Panasonic drives are found in products from Creative Labs, including SoundBlaster sound cards. There are numerous models of SoundBlaster sound cards, and most of the newer cards provide the appropriate interface, sometimes labeled as the "Creative/Panasonic" interface. The following host interface adapters are known to work with the matcd driver: Creative Sound Blaster Pro (SBPRO) (CT1330A) Creative Sound Blaster 16 (CT1730) Creative Sound Blaster 16 - cost-reduced (CT1740) Creative OmniCD upgrade kit adapter card - stand-alone CD (CT1810) Creative Sound Blaster 16 - 2-layer, cost-reduced (CT2230) Creative Sound Blaster 16 (Vibra16) - 2-layer, single-chip (CT2260) Creative Sound Blaster 16 Value (SB16) - 2-layer, cost-reduced (CT2770) Creative PhoneBlaster SB16 + Sierra 14.4K Voice/FAX/Data/Speaker- phone modem combo (CT3100) Reveal (SC400) Caution: Some of these sound boards can be optionally manufactured to not include the Panasonic/Creative interface, so check the board before buy- ing solely based on model number. This is by no means a complete list as Creative Labs and other vendors that produce sound cards with an identical Creative/Panasonic drive interface release new versions of their adapters all the time. In addition to Creative Labs adapters, adapters that are compatible with Media Vision, IBM and Lasermate adapters are also supported. However, these adapters use a wide range of I/O port addresses, so the driver must be reconfigured to locate these adapters. It is important to understand that some manufacturers have a different host interface implementation. If you have a board that won't communi- cate with the drives under MS-DOS using the genuine Creative Labs driv- ers, then matcd may not work with that host adapter. SUPPORTED OPERATIONS The matcd driver supports block and character access. Partition "a" returns 2048-byte User Data blocks from data CDs. Partition "c" returns the full 2352-byte Frames from any type of CD, including audio CDs. (Partition "c" cannot be "mounted" with cd9660 or other filesystem emula- tors.) No other partitions are supported. The matcdl devices work the same as the normal matcd devices except that the drive trays are locked and remain locked until all of the devs on that drive are closed. Matcd accepts numerous ioctl() commands, including disk and functions related to CD-ROM audio and tray control features. The commands are: DIOCGDINFO get disklabel. DIOCGDPART get partition. DIOCWDINFO set update disk. DIOCSDINFO set disklabel. CDIOCREADSUBCHANNEL get sub-channel information on current sta- tus of disc playing. CDIOCREADTOCHEADER reads table of contents summary. CDIOCREADTOCENTRYS reads length and other track information. CDIOCPLAYTRACKS plays audio starting at a track/index and stopping at a track/index. CDIOCPLAYMSF plays audio starting at a particular time offset. CDIOCPAUSE pauses a playing disc. CDIOCRESUME resumes playing a previously paused disc. Ignored if the drive is already playing. CDIOCSTOP stops playing a disc. CDIOCEJECT opens the disc tray. CDIOCCLOSE closes the disc tray. CDIOCPREVENT blocks further attempts to open the drive door until all devices close or a CDIOCAL- LOW ioctl is issued. CDIOCALLOW unlocks the drive door if it was locked. This ioctl is rejected if any locking devices are open. CDIOCGETVOL returns the current volume settings of the drive. CDIOCSETVOL sets the volume settings of the drive. CDIOCSETSTEREO causes the left channel audio to be sent to the left channel output and the right chan- nel audio is sent to the right channel out- put. This is the default state. CDIOCSETMUTE causes the audio output to be turned off. The drive continues to read the audio on the disc and that audio is discarded until the audio is turned back on. CDIOCSETLEFT causes the left channel audio to be sent to the left and right channel outputs. CDIOCSETRIGHT causes the right channel audio to be sent to the left and right channel outputs. CDIOCSETPATCH causes the audio to be routed as specified in the provided bit maps. CDIOCSETPITCH changes the playback speed of the audio to increase or decrease (as in Karaoke). CDIOCCAPABILITY report the capabilities of the drive and driver. The ioctl() commands defined above are the only ones that the matcd driver supports. FILES /dev/[r]matcd0a /dev/[r]matcd0la is used to access 2048-byte blocks of data on a CD-ROM disc that is recorded in the Mode 1 Form 1 format. /dev/[r]matcd0c /dev/[r]matcd0lc is used to access 2352-byte frames on a CD-ROM disc recorded in any format. /usr/src/sys/i386/isa/matcd/* Source code and compilation options for matcd. The file options.h contains all of the compilation options. By default, the driver is configured to run on the current version of FreeBSD. NOTES The Creative/Panasonic interface does not use interrupts or DMA although the drives themselves are capable of using both. If the disc tray is opened while one or more partitions are open, further I/O to all partitions on the drive will be rejected until all partitions are closed. There must be a drive on each host interface that is addressed as physi- cal drive 0. If this isn't the case, the driver will be unable to find the host interface or any of the connected drives. Drives on a second host interface start are considered logical drives 4-7, 8-11 on the third interface and 12-15 on the fourth. The first drive on the second host interface is logical drive 4 regard- less of how many drives are present on the first host interface. Host interfaces are numbered in the order they are declared in the kernel configuration file, or in the order they are found if the kernel configu- ration file uses "?" for the port address. Host interface numbers are always contiguous. SEE ALSO /usr/include/sys/cdio.h AUTHORS The driver and documentation was written by Frank Durda IV. Program and Documentation are Copyright 1994, 1995, All rights reserved. HISTORY The matcd driver appeared in FreeBSD 2.0.5. FreeBSD 11.1 September 24, 1995 FreeBSD 11.1
NAME | SYNOPSIS | DESCRIPTION | DRIVER CONFIGURATION | SUPPORTED HARDWARE | SUPPORTED OPERATIONS | FILES | NOTES | SEE ALSO | AUTHORS | HISTORY
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