1 /* $OpenBSD: fdvar.h,v 1.5 1997/06/24 09:50:57 downsj Exp $ */ 2 /* 3 * $NetBSD: fdvar.h,v 1.5 1996/12/08 23:40:34 pk Exp $ 4 * 5 * Copyright (c) 1995 Paul Kranenburg 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Paul Kranenburg. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35 #define FDC_BSIZE 512 36 #define FDC_MAXIOSIZE NBPG /* XXX should be MAXBSIZE */ 37 38 #define FDC_NSTATUS 10 39 40 #ifndef _LOCORE 41 struct fdcio { 42 /* 43 * 82072 (sun4c) and 82077 (sun4m) controllers have different 44 * register layout; so we cache some here. 45 */ 46 volatile u_int8_t *fdcio_reg_msr; 47 volatile u_int8_t *fdcio_reg_fifo; 48 volatile u_int8_t *fdcio_reg_dor; /* 82077 only */ 49 50 /* 51 * Interrupt state. 52 */ 53 int fdcio_istate; 54 55 /* 56 * IO state. 57 */ 58 char *fdcio_data; /* pseudo-dma data */ 59 int fdcio_tc; /* pseudo-dma Terminal Count */ 60 u_char fdcio_status[FDC_NSTATUS]; /* copy of registers */ 61 int fdcio_nstat; /* # of valid status bytes */ 62 63 /* 64 * Statictics. 65 */ 66 struct evcnt fdcio_intrcnt; 67 }; 68 #endif /* _LOCORE */ 69 70 /* istate values */ 71 #define ISTATE_IDLE 0 /* No HW interrupt expected */ 72 #define ISTATE_SPURIOUS 1 /* Spurious HW interrupt detected */ 73 #define ISTATE_SENSEI 2 /* Do SENSEI on next HW interrupt */ 74 #define ISTATE_DMA 3 /* Pseudo-DMA in progress */ 75 #define ISTATE_DONE 4 /* Interrupt processing complete */ 76 77 #define SUNOS_FDIOCEJECT _IO('f', 24) 78 79