NetBSD/sys/arch/arc/jazz/fdcvar.h

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/* $NetBSD: fdcvar.h,v 1.1 2001/05/22 03:22:50 soda Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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.
*/
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Don Ahn.
*
* 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 University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* @(#)fd.c 7.4 (Berkeley) 5/25/91
*/
/*
* Floppy formatting facilities merged from FreeBSD fd.c driver:
* Id: fd.c,v 1.53 1995/03/12 22:40:56 joerg Exp
* which carries the same copyright/redistribution notice as shown above with
* the addition of the following statement before the "Redistribution and
* use ..." clause:
*
* Copyright (c) 1993, 1994 by
* jc@irbs.UUCP (John Capo)
* vak@zebub.msk.su (Serge Vakulenko)
* ache@astral.msk.su (Andrew A. Chernov)
*
* Copyright (c) 1993, 1994, 1995 by
* joerg_wunsch@uriah.sax.de (Joerg Wunsch)
* dufault@hda.com (Peter Dufault)
*/
enum fdc_state {
DEVIDLE = 0,
MOTORWAIT,
DOSEEK,
SEEKWAIT,
SEEKTIMEDOUT,
SEEKCOMPLETE,
DOIO,
IOCOMPLETE,
IOTIMEDOUT,
DORESET,
RESETCOMPLETE,
RESETTIMEDOUT,
DORECAL,
RECALWAIT,
RECALTIMEDOUT,
RECALCOMPLETE,
};
/* software state, per controller */
struct fdc_softc {
struct device sc_dev; /* boilerplate */
void *sc_ih;
bus_space_tag_t sc_iot; /* I/O space identifier */
bus_space_handle_t sc_ioh; /* I/O handle */
struct callout sc_timo_ch; /* timeout callout */
struct callout sc_intr_ch; /* pseudo-intr callout */
bus_size_t sc_maxiosize;
struct fd_softc *sc_fd[4]; /* pointers to children */
TAILQ_HEAD(drivehead, fd_softc) sc_drives;
enum fdc_state sc_state;
int sc_errors; /* number of retries so far */
u_char sc_status[7]; /* copy of registers */
/* DMA functions set from MD code */
void (*sc_dma_start)(struct fdc_softc *, caddr_t, size_t, int);
void (*sc_dma_abort)(struct fdc_softc *);
void (*sc_dma_done)(struct fdc_softc *);
};
#define FDCDMA_START(fdc, addr, len, datain) \
(*(fdc)->sc_dma_start)(fdc, addr, len, datain)
#define FDCDMA_ABORT(fdc) (*(fdc)->sc_dma_abort)(fdc)
#define FDCDMA_DONE(fdc) (*(fdc)->sc_dma_done)(fdc)
int out_fdc(bus_space_tag_t iot, bus_space_handle_t ioh, u_char x);
void fdcattach(struct fdc_softc *);
int fdcintr(void *);