Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
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#define PP_IOCTL 'p'
19
20/* Set mode for read/write (e.g. IEEE1284_MODE_EPP) */
21#define PPSETMODE _IOW(PP_IOCTL, 0x80, int)
22
23/* Read status */
24#define PPRSTATUS _IOR(PP_IOCTL, 0x81, unsigned char)
25#define PPWSTATUS OBSOLETE__IOW(PP_IOCTL, 0x82, unsigned char)
26
27/* Read/write control */
28#define PPRCONTROL _IOR(PP_IOCTL, 0x83, unsigned char)
29#define PPWCONTROL _IOW(PP_IOCTL, 0x84, unsigned char)
30
31struct ppdev_frob_struct {
32 unsigned char mask;
33 unsigned char val;
34};
35#define PPFCONTROL _IOW(PP_IOCTL, 0x8e, struct ppdev_frob_struct)
36
37/* Read/write data */
38#define PPRDATA _IOR(PP_IOCTL, 0x85, unsigned char)
39#define PPWDATA _IOW(PP_IOCTL, 0x86, unsigned char)
40
41/* Read/write econtrol (not used) */
42#define PPRECONTROL OBSOLETE__IOR(PP_IOCTL, 0x87, unsigned char)
43#define PPWECONTROL OBSOLETE__IOW(PP_IOCTL, 0x88, unsigned char)
44
45/* Read/write FIFO (not used) */
46#define PPRFIFO OBSOLETE__IOR(PP_IOCTL, 0x89, unsigned char)
47#define PPWFIFO OBSOLETE__IOW(PP_IOCTL, 0x8a, unsigned char)
48
49/* Claim the port to start using it */
50#define PPCLAIM _IO(PP_IOCTL, 0x8b)
51
52/* Release the port when you aren't using it */
53#define PPRELEASE _IO(PP_IOCTL, 0x8c)
54
55/* Yield the port (release it if another driver is waiting,
56 * then reclaim) */
57#define PPYIELD _IO(PP_IOCTL, 0x8d)
58
59/* Register device exclusively (must be before PPCLAIM). */
60#define PPEXCL _IO(PP_IOCTL, 0x8f)
61
62/* Data line direction: non-zero for input mode. */
63#define PPDATADIR _IOW(PP_IOCTL, 0x90, int)
64
65/* Negotiate a particular IEEE 1284 mode. */
66#define PPNEGOT _IOW(PP_IOCTL, 0x91, int)
67
68/* Set control lines when an interrupt occurs. */
69#define PPWCTLONIRQ _IOW(PP_IOCTL, 0x92, unsigned char)
70
71/* Clear (and return) interrupt count. */
72#define PPCLRIRQ _IOR(PP_IOCTL, 0x93, int)
73
74/* Set the IEEE 1284 phase that we're in (e.g. IEEE1284_PH_FWD_IDLE) */
75#define PPSETPHASE _IOW(PP_IOCTL, 0x94, int)
76
77/* Set and get port timeout (struct timeval's) */
78#define PPGETTIME _IOR(PP_IOCTL, 0x95, struct timeval)
79#define PPSETTIME _IOW(PP_IOCTL, 0x96, struct timeval)
80
81/* Get available modes (what the hardware can do) */
82#define PPGETMODES _IOR(PP_IOCTL, 0x97, unsigned int)
83
84/* Get the current mode and phaze */
85#define PPGETMODE _IOR(PP_IOCTL, 0x98, int)
86#define PPGETPHASE _IOR(PP_IOCTL, 0x99, int)
87
88/* get/set flags */
89#define PPGETFLAGS _IOR(PP_IOCTL, 0x9a, int)
90#define PPSETFLAGS _IOW(PP_IOCTL, 0x9b, int)
91
92/* flags visible to the world */
93#define PP_FASTWRITE (1<<2)
94#define PP_FASTREAD (1<<3)
95#define PP_W91284PIC (1<<4)
96
97/* only masks user-visible flags */
98#define PP_FLAGMASK (PP_FASTWRITE | PP_FASTREAD | PP_W91284PIC)
99
100