Annotation of sys/arch/sparc/dev/fdvar.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: fdvar.h,v 1.8 2006/08/17 01:37:41 krw 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 FD_BSIZE(fd) (128 << fd->sc_type->secsize)
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_itask;
54: int fdcio_istatus;
55:
56: /*
57: * IO state.
58: */
59: char *fdcio_data; /* pseudo-dma data */
60: int fdcio_tc; /* pseudo-dma Terminal Count */
61: u_char fdcio_status[FDC_NSTATUS]; /* copy of registers */
62: int fdcio_nstat; /* # of valid status bytes */
63:
64: struct intrhand fdcio_ih;
65: };
66: #endif /* _LOCORE */
67:
68: /* itask values */
69: #define FDC_ITASK_NONE 0 /* No HW interrupt expected */
70: #define FDC_ITASK_SENSEI 1 /* Do SENSEI on next HW interrupt */
71: #define FDC_ITASK_DMA 2 /* Do Pseudo-DMA */
72: #define FDC_ITASK_RESULT 3 /* Pick up command results */
73:
74: /* istatus values */
75: #define FDC_ISTATUS_NONE 0 /* No status available */
76: #define FDC_ISTATUS_SPURIOUS 1 /* Spurious HW interrupt detected */
77: #define FDC_ISTATUS_ERROR 2 /* Operation completed abnormally */
78: #define FDC_ISTATUS_DONE 3 /* Operation completed normally */
79:
80: #define SUNOS_FDIOCEJECT _IO('f', 24)
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