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/*creative.h-------------------------------------------------------------------
Matsushita(Panasonic) / Creative CD-ROM Driver (matcd)
Authored by Frank Durda IV
Copyright 1994, 1995 Frank Durda IV. All rights reserved.
"FDIV" is a trademark of Frank Durda IV.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the following
conditions are met:
1. Redistributions of source code must retain the above copyright
notice positioned at the very beginning of this file without
modification, all copyright strings, all related programming
codes that display the copyright strings, this list of
conditions and the following disclaimer.
2. Redistributions in binary form must contain all copyright strings
and related programming code that display the copyright strings.
3. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
4. All advertising materials mentioning features or use of this
software must display the following acknowledgement:
"The Matsushita/Panasonic CD-ROM driver was developed
by Frank Durda IV for use with "FreeBSD" and similar
operating systems."
"Similar operating systems" includes mainly non-profit oriented
systems for research and education, including but not restricted
to "NetBSD", "386BSD", and "Mach" (by CMU). The wording of the
acknowledgement (in electronic form or printed text) may not be
changed without permission from the author.
5. Absolutely no warranty of function, fitness or purpose is made
by the author Frank Durda IV.
6. Neither the name of the author nor the name "FreeBSD" may
be used to endorse or promote products derived from this software
without specific prior written permission.
(The author can be reached at bsdmail@nemesis.lonestar.org)
7. The product containing this software must meet all of these
conditions even if it is unsupported, not a complete system
and/or does not contain compiled code.
8. These conditions will be in force for the full life of the
copyright.
9. If all the above conditions are met, modifications to other
parts of this file may be freely made, although any person
or persons making changes do not receive the right to add their
name or names to the copyright strings and notices in this
software. Persons making changes are encouraged to insert edit
history in matcd.c and to put your name and details of the
change there.
10. You must have prior written permission from the author to
deviate from these terms.
Vendors who produce product(s) containing this code are encouraged
(but not required) to provide copies of the finished product(s) to
the author and to correspond with the author about development
activity relating to this code. Donations of development hardware
and/or software are also welcome. (This is one of the faster ways
to get a driver developed for a device.)
THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER(S) BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-----No changes are allowed above this line------------------------------------
See matcd.c for Edit History
These are the I/O port mapping offsets and bit assignments used
by Creative Labs in their implementation of the host interface for
the Matsushita CD-ROM drive. These may be different in the adapter
cards (including sound cards) made by other vendors.
It is unknown if the Creative interface is based on a reference design
provided by Matsushita (other interface vendors would similar or
identical if this was the case).
The drive is actually capable of some things that the Creative
interface doesn't implement, such as DMA and interrupts.
See matcd.h for defines related to the Matsushita drive itself.
*/
/* Creative Labs (and compatible) I/O port mapping offsets
*/
#define NUMPORTS 4 /*Four ports are decoded by the i/f*/
#define CMD 0 /*Write - commands*/
#define DATA 0 /*Read - data/status from drive*/
#ifdef PC98
#define PHASE 0x100 /*Write - switch between data/status*/
#define STATUS 0x100 /*Read - bus status */
#define RESET 0x200 /*Write - reset all attached drives*/
#define ALTDATA 0x200 /*<20>Read - data on non Creative bds.*/
#define SELECT 0x300 /*Write - drive select*/
#else /* !PC98 */
#define PHASE 1 /*Write - switch between data/status*/
#define STATUS 1 /*Read - bus status*/
#define RESET 2 /*Write - reset all attached drives*/
/*Any value written will reset*/
#define ALTDATA 2 /*<20>Read - data on non Creative bds.*/
#define SELECT 3 /*Write - drive select*/
#endif /*PC98*/
/* Creative PHASE port bit assignments
*/
#define PHASENA 1 /*Access data bytes instead of status*/
/* Creative STATUS port register bits
*/
#define DTEN 2 /*When low, in data xfer phase*/
#define STEN 4 /*When low, in status phase*/
#define TEST 1 /*Function is unknown*/
/* Creative drive SELECT port bit assignments
Note that in the Creative interface, DS0==Bit 1 and
DS1==Bit 0 (DS is Drive Select).
*/
#define CRDRIVE0 0x00
#define CRDRIVE1 0x02
#define CRDRIVE2 0x01
#define CRDRIVE3 0x03
/*End of creative.h*/
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