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/* $OpenBSD: fdvar.h,v 1.1 2005/03/09 18:41:49 miod Exp $ */
/* $NetBSD: fdvar.h,v 1.12 2003/07/11 12:09:13 pk Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 FD_BSIZE(fd) (128 * (1 << fd->sc_type->secsize))
#define FDC_MAXIOSIZE NBPG /* XXX should be MAXBSIZE */
#define FDC_NSTATUS 10
struct fdcio {
bus_space_handle_t fdcio_handle;
/*
* Interrupt state.
*/
int fdcio_itask;
int fdcio_istatus;
/*
* 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 */
};
/* itask values */
#define FDC_ITASK_NONE 0 /* No HW interrupt expected */
#define FDC_ITASK_SENSEI 1 /* Do SENSEI on next HW interrupt */
#define FDC_ITASK_DMA 2 /* Do Pseudo-DMA */
#define FDC_ITASK_RESULT 3 /* Pick up command results */
/* istatus values */
#define FDC_ISTATUS_NONE 0 /* No status available */
#define FDC_ISTATUS_SPURIOUS 1 /* Spurious HW interrupt detected */
#define FDC_ISTATUS_ERROR 2 /* Operation completed abnormally */
#define FDC_ISTATUS_DONE 3 /* Operation completed normally */
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