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Annotation of sys/arch/sparc64/dev/fdvar.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: fdvar.h,v 1.2 2006/08/17 01:37:41 krw Exp $   */
        !             2: /*     $NetBSD: fdvar.h,v 1.12 2003/07/11 12:09:13 pk Exp $    */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 1998 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to The NetBSD Foundation
        !             9:  * by Paul Kranenburg.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer.
        !            16:  * 2. Redistributions in binary form must reproduce the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer in the
        !            18:  *    documentation and/or other materials provided with the distribution.
        !            19:  * 3. All advertising materials mentioning features or use of this software
        !            20:  *    must display the following acknowledgement:
        !            21:  *        This product includes software developed by the NetBSD
        !            22:  *        Foundation, Inc. and its contributors.
        !            23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
        !            24:  *    contributors may be used to endorse or promote products derived
        !            25:  *    from this software without specific prior written permission.
        !            26:  *
        !            27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
        !            28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
        !            29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
        !            30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
        !            31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        !            32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        !            33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        !            34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        !            35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        !            36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            37:  * POSSIBILITY OF SUCH DAMAGE.
        !            38:  */
        !            39:
        !            40: #define        FD_BSIZE(fd)    (128 << fd->sc_type->secsize)
        !            41: #define        FDC_MAXIOSIZE   NBPG    /* XXX should be MAXBSIZE */
        !            42:
        !            43: #define FDC_NSTATUS    10
        !            44:
        !            45: struct fdcio {
        !            46:        bus_space_handle_t      fdcio_handle;
        !            47:
        !            48:        /*
        !            49:         * Interrupt state.
        !            50:         */
        !            51:        int     fdcio_itask;
        !            52:        int     fdcio_istatus;
        !            53:
        !            54:        /*
        !            55:         * IO state.
        !            56:         */
        !            57:        char    *fdcio_data;            /* pseudo-DMA data */
        !            58:        int     fdcio_tc;               /* pseudo-DMA Terminal Count */
        !            59:        u_char  fdcio_status[FDC_NSTATUS];      /* copy of registers */
        !            60:        int     fdcio_nstat;            /* # of valid status bytes */
        !            61: };
        !            62:
        !            63: /* itask values */
        !            64: #define FDC_ITASK_NONE         0       /* No HW interrupt expected */
        !            65: #define FDC_ITASK_SENSEI       1       /* Do SENSEI on next HW interrupt */
        !            66: #define FDC_ITASK_DMA          2       /* Do Pseudo-DMA */
        !            67: #define FDC_ITASK_RESULT       3       /* Pick up command results */
        !            68:
        !            69: /* istatus values */
        !            70: #define FDC_ISTATUS_NONE       0       /* No status available */
        !            71: #define FDC_ISTATUS_SPURIOUS   1       /* Spurious HW interrupt detected */
        !            72: #define FDC_ISTATUS_ERROR      2       /* Operation completed abnormally */
        !            73: #define FDC_ISTATUS_DONE       3       /* Operation completed normally */