LXR linux/include/uapi/linux/ppdev.h

   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
  34struct 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