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 */
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