/*	$NetBSD: tc_3000_500.h,v 1.1 1995/02/13 23:09:09 cgd Exp $	*/

/*
 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Author: Chris G. Demetriou
 * 
 * Permission to use, copy, modify and distribute this software and
 * its documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 */

/*
 * TurboChannel-specific functions and structures for 3000_500.
 */

/*
 * TURBOchannel Interface Registers.
 *
 * XXX
 * Writing to TC_3000_500_TCRESET appears to kill the 400 we're using.
 */
#define	TC_3000_500_IOSLOT		KV(0x00000001c2000000)	/* Dense */
#define	TC_3000_500_TCCONFIG		KV(0x00000001c2000008)	/* Dense */
#define	TC_3000_500_FADR		KV(0x00000001c2000010)	/* Dense */
#define	TC_3000_500_TCEREG		KV(0x00000001c2000018)	/* Dense */
#define	TC_3000_500_MEMCONF		KV(0x00000001c2200000)	/* Dense */
#define	TC_3000_500_IMR_READ		KV(0x00000001c2400000)	/* Dense */
#define	TC_3000_500_IMR_WRITE		KV(0x00000001c281fffc)	/* Dense */
#define	TC_3000_500_TCRESET		KV(0x00000001c2a00000)	/* Dense */
#define	TC_3000_500_IR			KV(0x00000001d4800000)	/* Sparse */
#define	TC_3000_500_IR_CLEAR		KV(0x00000001d4c00000)	/* Sparse */
#define	TC_3000_500_SCMAP		KV(0x00000001d5000000)	/* Sparse */

/* Interrupt bits. */
#define	TC_3000_500_IR_OPT0		0x00000001	/* TC Option 0 */
#define	TC_3000_500_IR_OPT1		0x00000002	/* TC Option 1 */
#define	TC_3000_500_IR_OPT2		0x00000004	/* TC Option 2 */
#define	TC_3000_500_IR_OPT3		0x00000008	/* TC Option 3 */
#define	TC_3000_500_IR_OPT4		0x00000010	/* TC Option 4 */
#define	TC_3000_500_IR_OPT5		0x00000020	/* TC Option 5 */
#define	TC_3000_500_IR_TCDS		0x00000040	/* TC Dual SCSI */
#define	TC_3000_500_IR_IOCTL		0x00000080	/* TC IOCTL */
#define	TC_3000_500_IR_CXTURBO		0x00000100	/* TC CXTURBO */
#define	TC_3000_500_IR_ERR2		0x00080000	/* Second error */
#define	TC_3000_500_IR_DMABE		0x00100000	/* DMA buffer error */
#define	TC_3000_500_IR_DMA2K		0x00200000	/* DMA 2K boundary */
#define	TC_3000_500_IR_TCRESET		0x00400000	/* TC reset in prog. */
#define	TC_3000_500_IR_TCPAR		0x00800000	/* TC parity error */
#define	TC_3000_500_IR_DMATAG		0x01000000	/* DMA tag error */
#define	TC_3000_500_IR_DMASBE		0x02000000	/* Single-bit error */
#define	TC_3000_500_IR_DMADBE		0x04000000	/* Double-bit error */
#define	TC_3000_500_IR_TCTIMEOUT	0x08000000	/* TC timeout on I/O */
#define	TC_3000_500_IR_DMABLOCK		0x10000000	/* DMA block too long */
#define	TC_3000_500_IR_IOADDR		0x20000000	/* Invalid I/O addr */
#define	TC_3000_500_IR_DMASG		0x40000000	/* SG invalid */
#define	TC_3000_500_IR_SGPAR		0x80000000	/* SG parity error */

/* I/O Slot Configuration (IOSLOT) bits. */
#define	IOSLOT_P		0x04	/* Parity enable. */
#define	IOSLOT_B		0x02	/* Block-mode write. */
#define	IOSLOT_S		0x01	/* DMA scatter/gather mode. */

/* I/O Slot Configuration (IOSLOT) offsets. */
#define	TC_IOSLOT_OPT0		0	/* Option 0 PBS offset. */
#define	TC_IOSLOT_OPT1		1	/* Option 1 PBS offset. */
#define	TC_IOSLOT_OPT2		2	/* Option 2 PBS offset. */
#define	TC_IOSLOT_OPT3		3	/* Option 3 PBS offset. */
#define	TC_IOSLOT_OPT4		4	/* Option 4 PBS offset. */
#define	TC_IOSLOT_OPT5		5	/* Option 5 PBS offset. */
#define	TC_IOSLOT_SCSI		6	/* Option SCSI PBS offset. */
#define	TC_IOSLOT_IOCTL		7	/* Option IOCTL PBS offset. */
#define	TC_IOSLOT_CXTURBO	8	/* Option CXTURBO PBS offset. */