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