/*-
* 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.
*
* 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 FDC_BSIZE 512
#define FDC_MAXIOSIZE NBPG /* XXX should be MAXBSIZE */
#define FDC_NSTATUS 10
#ifndef _LOCORE
struct fdcio {
/*
* 82072 (sun4c,sun3x) and 82077 (sun4m) controllers have different
* register layout; so we cache some here.
*/
volatile uint8_t *fdcio_reg_msr;
volatile uint8_t *fdcio_reg_fifo;
volatile uint8_t *fdcio_reg_dor; /* 82077 only */
volatile uint8_t *fdcio_reg_fcr; /* sun3x floppy control reg */
volatile uint8_t *fdcio_reg_fvr; /* sun3x floppy int. vector */
/*
* 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 */
/* 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 FD_MAX_NSEC 36 /* highest known number of spt - allow for */
/* 2.88 MB drives */
#ifndef _LOCORE
struct ne7_fd_formb {
int cyl, head;
int transfer_rate; /* fdreg.h: FDC_???KBPS */
union {
struct fd_form_data {
/*
* DO NOT CHANGE THE LAYOUT OF THIS STRUCTS
* it is hardware-dependent since it exactly
* matches the byte sequence to write to FDC
* during its `format track' operation
*/
u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */
u_char nsecs; /* must be <= FD_MAX_NSEC */
u_char gaplen; /* GAP 3 length; usually 84 */
u_char fillbyte; /* usually 0xf6 */
struct fd_idfield_data {
/*
* data to write into id fields;
* for obscure formats, they mustn't match
* the real values (but mostly do)
*/
u_char cylno; /* 0 thru 79 (or 39) */
u_char headno; /* 0, or 1 */
u_char secno; /* starting at 1! */
u_char secsize; /* usually 2 */
} idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */
} structured;
u_char raw[1]; /* to have continuous indexed access */
} format_info;
};
/* make life easier */
#define fd_formb_secshift format_info.structured.secshift
#define fd_formb_nsecs format_info.structured.nsecs
#define fd_formb_gaplen format_info.structured.gaplen
#define fd_formb_fillbyte format_info.structured.fillbyte
/* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */
#define fd_formb_cylno(i) format_info.structured.idfields[i].cylno
#define fd_formb_headno(i) format_info.structured.idfields[i].headno
#define fd_formb_secno(i) format_info.structured.idfields[i].secno
#define fd_formb_secsize(i) format_info.structured.idfields[i].secsize
#endif /* _LOCORE */
