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Annotation of sys/arch/sparc64/dev/fdvar.h, Revision 1.1.1.1

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 */