1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2 /*
3 * linux/include/linux/ppdev.h
4 *
5 * User-space parallel port device driver (header file).
6 *
7 * Copyright (C) 1998-9 Tim Waugh <tim@cyberelk.demon.co.uk>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 *
14 * Added PPGETTIME/PPSETTIME, Fred Barnes, 1999
15 * Added PPGETMODES/PPGETMODE/PPGETPHASE, Fred Barnes <frmb2@ukc.ac.uk>, 03/01/2001
16 */
17
18 #ifndef _UAPI_LINUX_PPDEV_H
19 #define _UAPI_LINUX_PPDEV_H
20
21 #define PP_IOCTL 'p'
22
23 /* Set mode for read/write (e.g. IEEE1284_MODE_EPP) */
24 #define PPSETMODE _IOW(PP_IOCTL, 0x80, int)
25
26 /* Read status */
27 #define PPRSTATUS _IOR(PP_IOCTL, 0x81, unsigned char)
28 #define PPWSTATUS OBSOLETE__IOW(PP_IOCTL, 0x82, unsigned char)
29
30 /* Read/write control */
31 #define PPRCONTROL _IOR(PP_IOCTL, 0x83, unsigned char)
32 #define PPWCONTROL _IOW(PP_IOCTL, 0x84, unsigned char)
33
34 struct ppdev_frob_struct {
35 unsigned char mask;
36 unsigned char val;
37 };
38 #define PPFCONTROL _IOW(PP_IOCTL, 0x8e, struct ppdev_frob_struct)
39
40 /* Read/write data */
41 #define PPRDATA _IOR(PP_IOCTL, 0x85, unsigned char)
42 #define PPWDATA _IOW(PP_IOCTL, 0x86, unsigned char)
43
44 /* Read/write econtrol (not used) */
45 #define PPRECONTROL OBSOLETE__IOR(PP_IOCTL, 0x87, unsigned char)
46 #define PPWECONTROL OBSOLETE__IOW(PP_IOCTL, 0x88, unsigned char)
47
48 /* Read/write FIFO (not used) */
49 #define PPRFIFO OBSOLETE__IOR(PP_IOCTL, 0x89, unsigned char)
50 #define PPWFIFO OBSOLETE__IOW(PP_IOCTL, 0x8a, unsigned char)
51
52 /* Claim the port to start using it */
53 #define PPCLAIM _IO(PP_IOCTL, 0x8b)
54
55 /* Release the port when you aren't using it */
56 #define PPRELEASE _IO(PP_IOCTL, 0x8c)
57
58 /* Yield the port (release it if another driver is waiting,
59 * then reclaim) */
60 #define PPYIELD _IO(PP_IOCTL, 0x8d)
61
62 /* Register device exclusively (must be before PPCLAIM). */
63 #define PPEXCL _IO(PP_IOCTL, 0x8f)
64
65 /* Data line direction: non-zero for input mode. */
66 #define PPDATADIR _IOW(PP_IOCTL, 0x90, int)
67
68 /* Negotiate a particular IEEE 1284 mode. */
69 #define PPNEGOT _IOW(PP_IOCTL, 0x91, int)
70
71 /* Set control lines when an interrupt occurs. */
72 #define PPWCTLONIRQ _IOW(PP_IOCTL, 0x92, unsigned char)
73
74 /* Clear (and return) interrupt count. */
75 #define PPCLRIRQ _IOR(PP_IOCTL, 0x93, int)
76
77 /* Set the IEEE 1284 phase that we're in (e.g. IEEE1284_PH_FWD_IDLE) */
78 #define PPSETPHASE _IOW(PP_IOCTL, 0x94, int)
79
80 /* Set and get port timeout (struct timeval's) */
81 #define PPGETTIME _IOR(PP_IOCTL, 0x95, struct timeval)
82 #define PPSETTIME _IOW(PP_IOCTL, 0x96, struct timeval)
83
84 /* Get available modes (what the hardware can do) */
85 #define PPGETMODES _IOR(PP_IOCTL, 0x97, unsigned int)
86
87 /* Get the current mode and phaze */
88 #define PPGETMODE _IOR(PP_IOCTL, 0x98, int)
89 #define PPGETPHASE _IOR(PP_IOCTL, 0x99, int)
90
91 /* get/set flags */
92 #define PPGETFLAGS _IOR(PP_IOCTL, 0x9a, int)
93 #define PPSETFLAGS _IOW(PP_IOCTL, 0x9b, int)
94
95 /* flags visible to the world */
96 #define PP_FASTWRITE (1<<2)
97 #define PP_FASTREAD (1<<3)
98 #define PP_W91284PIC (1<<4)
99
100 /* only masks user-visible flags */
101 #define PP_FLAGMASK (PP_FASTWRITE | PP_FASTREAD | PP_W91284PIC)
102
103 #endif /* _UAPI_LINUX_PPDEV_H */
104
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