102 lines
3.9 KiB
C
102 lines
3.9 KiB
C
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/*creative.h-------------------------------------------------------------------
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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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See matcd.c for Edit History
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*/
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/* $FreeBSD$
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*/
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/*----------------------------------------------------------------------------
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These are the I/O port mapping offsets and bit assignments used by Creative
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Labs in their implementation of the host interface adapter for the Matsushita
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CD-ROM drive. These may be different in the adapter cards (including sound
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cards) made by other vendors. It is unknown if the Creative interface is
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based on a reference design provided by Matsushita. (If Matsushita did
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provide a reference design, you would expect adapters made by other vendors
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to be more compatible.)
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Note that the Matsushita drives are actually capable of using DMA and
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generating interrupts, but none of the host adapters provide the circuitry
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needed to do DMA or generate interrupts.
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See matcd.h for defines related to the drive command set.
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------------------------------------------------------------------------------
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Creative Labs (and compatible) host adapter I/O port mapping offsets
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----------------------------------------------------------------------------*/
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#define NUMPORTS 4 /*Four ports are decoded by the i/f*/
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#define CMD 0 /*Write - commands*/
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#define DATA 0 /*Read - status from drive. Also for*/
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/*reading data on Creative adapters.*/
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#define PHASE 1 /*Write - switch between data/status*/
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#define STATUS 1 /*Read - bus status*/
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#define RESET 2 /*Write - reset all attached drives*/
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/*Any value written will reset*/
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#define ALTDATA 2 /*Read - data on non-Creative adaptrs.*/
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#define SELECT 3 /*Write - drive select*/
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/* Creative PHASE port bit assignments
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*/
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#define PHASENA 1 /*Access data bytes instead of status*/
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/*on shared data/status port*/
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/* Creative STATUS port register bits
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*/
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#define DTEN 2 /*When low, in data xfer phase*/
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#define STEN 4 /*When low, in status phase*/
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#define TEST 1 /*Function is unknown*/
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/* Creative drive SELECT port bit assignments
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Note that on the Creative host adapters, DS0==Bit 1 and
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DS1==Bit 0 (DS is Drive Select).
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*/
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#define CRDRIVE0 0x00
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#define CRDRIVE1 0x02
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#define CRDRIVE2 0x01
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#define CRDRIVE3 0x03
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/*End of creative.h*/
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