include/linux/ppdev.h

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