77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/*
|
|
* $NetBSD: fdvar.h,v 1.3 1995/04/07 19:46:15 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
|
|
|
|
#if !defined(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 FDIOCEJECT _IO('f', 24)
|
|
|