ppdev.h

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/*
 * linux/include/linux/ppdev.h
 *
 * User-space parallel port device driver (header file).
 *
 * Copyright (C) 1998-9 Tim Waugh <[email protected]>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 *
 * Added PPGETTIME/PPSETTIME, Fred Barnes, 1999
 * Added PPGETMODES/PPGETMODE/PPGETPHASE, Fred Barnes <[email protected]>, 03/01/2001
 */

#define PP_IOCTL    'p'

/* Set mode for read/write (e.g. IEEE1284_MODE_EPP) */
#define PPSETMODE   _IOW(PP_IOCTL, 0x80, int)

/* Read status */
#define PPRSTATUS   _IOR(PP_IOCTL, 0x81, unsigned char)
#define PPWSTATUS   OBSOLETE__IOW(PP_IOCTL, 0x82, unsigned char)

/* Read/write control */
#define PPRCONTROL  _IOR(PP_IOCTL, 0x83, unsigned char)
#define PPWCONTROL  _IOW(PP_IOCTL, 0x84, unsigned char)

struct ppdev_frob_struct {
    unsigned char mask;
    unsigned char val;
};
#define PPFCONTROL      _IOW(PP_IOCTL, 0x8e, struct ppdev_frob_struct)

/* Read/write data */
#define PPRDATA     _IOR(PP_IOCTL, 0x85, unsigned char)
#define PPWDATA     _IOW(PP_IOCTL, 0x86, unsigned char)

/* Read/write econtrol (not used) */
#define PPRECONTROL OBSOLETE__IOR(PP_IOCTL, 0x87, unsigned char)
#define PPWECONTROL OBSOLETE__IOW(PP_IOCTL, 0x88, unsigned char)

/* Read/write FIFO (not used) */
#define PPRFIFO     OBSOLETE__IOR(PP_IOCTL, 0x89, unsigned char)
#define PPWFIFO     OBSOLETE__IOW(PP_IOCTL, 0x8a, unsigned char)

/* Claim the port to start using it */
#define PPCLAIM     _IO(PP_IOCTL, 0x8b)

/* Release the port when you aren't using it */
#define PPRELEASE   _IO(PP_IOCTL, 0x8c)

/* Yield the port (release it if another driver is waiting,
 * then reclaim) */
#define PPYIELD     _IO(PP_IOCTL, 0x8d)

/* Register device exclusively (must be before PPCLAIM). */
#define PPEXCL      _IO(PP_IOCTL, 0x8f)

/* Data line direction: non-zero for input mode. */
#define PPDATADIR   _IOW(PP_IOCTL, 0x90, int)

/* Negotiate a particular IEEE 1284 mode. */
#define PPNEGOT     _IOW(PP_IOCTL, 0x91, int)

/* Set control lines when an interrupt occurs. */
#define PPWCTLONIRQ _IOW(PP_IOCTL, 0x92, unsigned char)

/* Clear (and return) interrupt count. */
#define PPCLRIRQ    _IOR(PP_IOCTL, 0x93, int)

/* Set the IEEE 1284 phase that we're in (e.g. IEEE1284_PH_FWD_IDLE) */
#define PPSETPHASE  _IOW(PP_IOCTL, 0x94, int)

/* Set and get port timeout (struct timeval's) */
#define PPGETTIME   _IOR(PP_IOCTL, 0x95, struct timeval)
#define PPSETTIME   _IOW(PP_IOCTL, 0x96, struct timeval)

/* Get available modes (what the hardware can do) */
#define PPGETMODES  _IOR(PP_IOCTL, 0x97, unsigned int)

/* Get the current mode and phaze */
#define PPGETMODE   _IOR(PP_IOCTL, 0x98, int)
#define PPGETPHASE  _IOR(PP_IOCTL, 0x99, int)

/* get/set flags */
#define PPGETFLAGS  _IOR(PP_IOCTL, 0x9a, int)
#define PPSETFLAGS  _IOW(PP_IOCTL, 0x9b, int)

/* flags visible to the world */
#define PP_FASTWRITE    (1<<2)
#define PP_FASTREAD (1<<3)
#define PP_W91284PIC    (1<<4)

/* only masks user-visible flags */
#define PP_FLAGMASK (PP_FASTWRITE | PP_FASTREAD | PP_W91284PIC)