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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */2/*3 * linux/include/linux/ppdev.h4 *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/or10 * modify it under the terms of the GNU General Public License11 * as published by the Free Software Foundation; either version12 * 2 of the License, or (at your option) any later version.13 *14 * Added PPGETTIME/PPSETTIME, Fred Barnes, 199915 * Added PPGETMODES/PPGETMODE/PPGETPHASE, Fred Barnes <frmb2@ukc.ac.uk>, 03/01/200116 */17 18#ifndef _UAPI_LINUX_PPDEV_H19#define _UAPI_LINUX_PPDEV_H20 21#define PP_IOCTL 'p'22 23/* Set mode for read/write (e.g. IEEE1284_MODE_EPP) */24#define PPSETMODE _IOW(PP_IOCTL, 0x80, int)25 26/* Read status */27#define PPRSTATUS _IOR(PP_IOCTL, 0x81, unsigned char)28#define PPWSTATUS OBSOLETE__IOW(PP_IOCTL, 0x82, unsigned char)29 30/* Read/write control */31#define PPRCONTROL _IOR(PP_IOCTL, 0x83, unsigned char)32#define PPWCONTROL _IOW(PP_IOCTL, 0x84, unsigned char)33 34struct ppdev_frob_struct {35 unsigned char mask;36 unsigned char val;37};38#define PPFCONTROL _IOW(PP_IOCTL, 0x8e, struct ppdev_frob_struct)39 40/* Read/write data */41#define PPRDATA _IOR(PP_IOCTL, 0x85, unsigned char)42#define PPWDATA _IOW(PP_IOCTL, 0x86, unsigned char)43 44/* Read/write econtrol (not used) */45#define PPRECONTROL OBSOLETE__IOR(PP_IOCTL, 0x87, unsigned char)46#define PPWECONTROL OBSOLETE__IOW(PP_IOCTL, 0x88, unsigned char)47 48/* Read/write FIFO (not used) */49#define PPRFIFO OBSOLETE__IOR(PP_IOCTL, 0x89, unsigned char)50#define PPWFIFO OBSOLETE__IOW(PP_IOCTL, 0x8a, unsigned char)51 52/* Claim the port to start using it */53#define PPCLAIM _IO(PP_IOCTL, 0x8b)54 55/* Release the port when you aren't using it */56#define PPRELEASE _IO(PP_IOCTL, 0x8c)57 58/* Yield the port (release it if another driver is waiting,59 * then reclaim) */60#define PPYIELD _IO(PP_IOCTL, 0x8d)61 62/* Register device exclusively (must be before PPCLAIM). */63#define PPEXCL _IO(PP_IOCTL, 0x8f)64 65/* Data line direction: non-zero for input mode. */66#define PPDATADIR _IOW(PP_IOCTL, 0x90, int)67 68/* Negotiate a particular IEEE 1284 mode. */69#define PPNEGOT _IOW(PP_IOCTL, 0x91, int)70 71/* Set control lines when an interrupt occurs. */72#define PPWCTLONIRQ _IOW(PP_IOCTL, 0x92, unsigned char)73 74/* Clear (and return) interrupt count. */75#define PPCLRIRQ _IOR(PP_IOCTL, 0x93, int)76 77/* Set the IEEE 1284 phase that we're in (e.g. IEEE1284_PH_FWD_IDLE) */78#define PPSETPHASE _IOW(PP_IOCTL, 0x94, int)79 80/* Set and get port timeout (struct timeval's) */81#define PPGETTIME _IOR(PP_IOCTL, 0x95, struct timeval)82#define PPSETTIME _IOW(PP_IOCTL, 0x96, struct timeval)83 84/* Get available modes (what the hardware can do) */85#define PPGETMODES _IOR(PP_IOCTL, 0x97, unsigned int)86 87/* Get the current mode and phaze */88#define PPGETMODE _IOR(PP_IOCTL, 0x98, int)89#define PPGETPHASE _IOR(PP_IOCTL, 0x99, int)90 91/* get/set flags */92#define PPGETFLAGS _IOR(PP_IOCTL, 0x9a, int)93#define PPSETFLAGS _IOW(PP_IOCTL, 0x9b, int)94 95/* flags visible to the world */96#define PP_FASTWRITE (1<<2)97#define PP_FASTREAD (1<<3)98#define PP_W91284PIC (1<<4)99 100/* only masks user-visible flags */101#define PP_FLAGMASK (PP_FASTWRITE | PP_FASTREAD | PP_W91284PIC)102 103#endif /* _UAPI_LINUX_PPDEV_H */104