NetBSD/sys/dev/qbus/rfreg.h

114 lines
4.5 KiB
C

/* $NetBSD: rfreg.h,v 1.3 2005/02/26 12:45:06 simonb Exp $ */
/*
* Copyright (c) 2002 Jochen Kunz.
* All rights reserved.
*
* 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, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of Jochen Kunz may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY JOCHEN KUNZ
* ``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 JOCHEN KUNZ
* 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.
*/
/* Registers in Uni/QBus I/O space. */
#define RX2CS 0 /* Command and Status Register */
#define RX2DB 2 /* Data Buffer Register */
/* RX2DB is depending on context: */
#define RX2BA 2 /* Bus Address Register */
#define RX2TA 2 /* Track Address Register */
#define RX2SA 2 /* Sector Address Register */
#define RX2WC 2 /* Word Count Register */
#define RX2ES 2 /* Error and Status Register */
/* Bitdefinitions of CSR. */
#define RX2CS_ERR 0x8000 /* Error RO */
#define RX2CS_INIT 0x4000 /* Initialize WO */
#define RX2CS_UAEBH 0x2000 /* Unibus address extension high bit WO */
#define RX2CS_UAEBI 0x1000 /* Unibus address extension low bit WO */
#define RX2CS_RX02 0x0800 /* RX02 RO */
/* 0x0400 Not Used -- */
/* 0x0200 Not Used -- */
#define RX2CS_DD 0x0100 /* Double Density R/W */
#define RX2CS_TR 0x0080 /* Transfer Request RO */
#define RX2CS_IE 0x0040 /* Interrupt Enable R/W */
#define RX2CS_DONE 0x0020 /* Done RO */
#define RX2CS_US 0x0010 /* Unit Select WO */
#define RX2CS_FCH 0x0008 /* Function Code high bit WO */
#define RX2CS_FCM 0x0004 /* Function Code mid bit WO */
#define RX2CS_FCL 0x0002 /* Function Code low bit WO */
#define RX2CS_GO 0x0001 /* Go WO */
#define RX2CS_NU 0x0600 /* not used bits -- */
#define RX2CS_UAEB ( RX2CS_UAEBH | RX2CS_UAEBI )
#define RX2CS_FC ( RX2CS_FCH | RX2CS_FCM | RX2CS_FCL )
/* Commands of the controller and parameter cont. */
#define RX2CS_FBUF 001 /* Fill Buffer, word count and bus address */
#define RX2CS_EBUF 003 /* Empty Buffer, word count and bus address */
#define RX2CS_WSEC 005 /* Write Sector, sector and track */
#define RX2CS_RSEC 007 /* Read Sector, sector and track */
#define RX2CS_SMD 011 /* Set Media Density, ??? */
#define RX2CS_RSTAT 013 /* Read Status, no params */
#define RX2CS_WDDS 015 /* Write Deleted Data Sector, sector and track */
#define RX2CS_REC 017 /* Read Error Code, bus address */
/* Track Address Register */
#define RX2TA_MASK 0x7f
/* Sector Address Register */
#define RX2SA_MASK 0x1f
/* Word Count Register */
#define RX2WC_MASK 0x7f
/* Bitdefinitions of RX2ES. */
/* <15-12> Not Used -- */
#define RX2ES_NEM 0x0800 /* Non-Existend Memory RO */
#define RX2ES_WCO 0x0400 /* Word Count Overflow RO */
/* 0x0200 Not Used RO */
#define RX2ES_US 0x0010 /* Unit Select RO */
#define RX2ES_RDY 0x0080 /* Ready RO */
#define RX2ES_DEL 0x0040 /* Deleted Data RO */
#define RX2ES_DD 0x0020 /* Double Density RO */
#define RX2ES_DE 0x0010 /* Density Error RO */
#define RX2ES_ACL 0x0008 /* AC Lost RO */
#define RX2ES_ID 0x0004 /* Initialize Done RO */
/* 0x0002 Not Used -- */
#define RX2ES_CRCE 0x0001 /* CRC Error RO */
#define RX2ES_NU 0xF202 /* not used bits -- */
#define RX2_TRACKS 77 /* number of tracks */
#define RX2_SECTORS 26 /* number of sectors / track */
#define RX2_BYTE_SD 128 /* number of bytes / sector in single density */
#define RX2_BYTE_DD 256 /* number of bytes / sector in double density */
#define RX2_HEADS 1 /* number of heads */