FreeBSD/Linux Kernel Cross Reference
sys/dev/isa/fdcvar.h

     /*      $NetBSD: fdcvar.h,v 1.5 2003/09/25 19:06:19 mycroft 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. 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 {
            PROBING = -1,
            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;         /* ISA i/o space identifier */
           bus_space_handle_t sc_ioh;      /* ISA io handle */
           isa_chipset_tag_t sc_ic;        /* ISA chipset info */
   
           struct callout sc_timo_ch;      /* timeout callout */
           struct callout sc_intr_ch;      /* pseudo-intr callout */
   
           /*
            * XXX We have port overlap with the first IDE controller.
            * Until we have a reasonable solution for handling overlap
            * like this, we kludge access to our control register at
            * offset 7.
            */
           bus_space_handle_t sc_fdctlioh;
   #define sc_fdinioh      sc_fdctlioh
   
           int sc_drq;
           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 */
   
           int sc_known;                   /* direct configuration if non-zero */
           int sc_present;                 /* bitmap of available fds */
           const struct fd_type *sc_knownfds[4];   /* drive info known fds */
   };
   
   int     out_fdc __P((bus_space_tag_t iot, bus_space_handle_t ioh, u_char x));
   
   void    fdcattach __P((struct fdc_softc *));
   int     fdcintr __P((void *));

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