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 #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
  31 struct 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