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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* linux/include/linux/ppdev.h
*
* User-space parallel port device driver (header file).
*
* Copyright (C) 1998-9 Tim Waugh <tim@cyberelk.demon.co.uk>
*
* 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 <frmb2@ukc.ac.uk>, 03/01/2001
*/
#ifndef _LINUX_PPDEV_H
#define _LINUX_PPDEV_H
#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)
#endif /* _LINUX_PPDEV_H */