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/* $OpenBSD: fdvar.h,v 1.5 1997/06/24 09:50:57 downsj Exp $ */
/*
* $NetBSD: fdvar.h,v 1.5 1996/12/08 23:40:34 pk Exp $
*
* Copyright (c) 1995 Paul Kranenburg
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Paul Kranenburg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
#define FDC_BSIZE 512
#define FDC_MAXIOSIZE NBPG /* XXX should be MAXBSIZE */
#define FDC_NSTATUS 10
#ifndef _LOCORE
struct fdcio {
/*
* 82072 (sun4c) and 82077 (sun4m) controllers have different
* register layout; so we cache some here.
*/
volatile u_int8_t *fdcio_reg_msr;
volatile u_int8_t *fdcio_reg_fifo;
volatile u_int8_t *fdcio_reg_dor; /* 82077 only */
/*
* Interrupt state.
*/
int fdcio_istate;
/*
* IO state.
*/
char *fdcio_data; /* pseudo-dma data */
int fdcio_tc; /* pseudo-dma Terminal Count */
u_char fdcio_status[FDC_NSTATUS]; /* copy of registers */
int fdcio_nstat; /* # of valid status bytes */
/*
* Statictics.
*/
struct evcnt fdcio_intrcnt;
};
#endif /* _LOCORE */
/* istate values */
#define ISTATE_IDLE 0 /* No HW interrupt expected */
#define ISTATE_SPURIOUS 1 /* Spurious HW interrupt detected */
#define ISTATE_SENSEI 2 /* Do SENSEI on next HW interrupt */
#define ISTATE_DMA 3 /* Pseudo-DMA in progress */
#define ISTATE_DONE 4 /* Interrupt processing complete */
#define SUNOS_FDIOCEJECT _IO('f', 24)
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