/* 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 _UAPI_LINUX_PPDEV_H
#define _UAPI_LINUX_PPDEV_H
#define PP_IOCTL 'p'
/* Set mode for read/write (e.g. IEEE1284_MODE_EPP) */
#define PPSETMODE _IOW(PP_IOCTL, 0 x80, int )
/* Read status */
#define PPRSTATUS _IOR(PP_IOCTL, 0 x81, unsigned char )
#define PPWSTATUS OBSOLETE__IOW(PP_IOCTL, 0 x82, unsigned char )
/* Read/write control */
#define PPRCONTROL _IOR(PP_IOCTL, 0 x83, unsigned char )
#define PPWCONTROL _IOW(PP_IOCTL, 0 x84, unsigned char )
struct ppdev_frob_struct {
unsigned char mask;
unsigned char val;
};
#define PPFCONTROL _IOW(PP_IOCTL, 0 x8e, struct ppdev_frob_struct)
/* Read/write data */
#define PPRDATA _IOR(PP_IOCTL, 0 x85, unsigned char )
#define PPWDATA _IOW(PP_IOCTL, 0 x86, unsigned char )
/* Read/write econtrol (not used) */
#define PPRECONTROL OBSOLETE__IOR(PP_IOCTL, 0 x87, unsigned char )
#define PPWECONTROL OBSOLETE__IOW(PP_IOCTL, 0 x88, unsigned char )
/* Read/write FIFO (not used) */
#define PPRFIFO OBSOLETE__IOR(PP_IOCTL, 0 x89, unsigned char )
#define PPWFIFO OBSOLETE__IOW(PP_IOCTL, 0 x8a, unsigned char )
/* Claim the port to start using it */
#define PPCLAIM _IO(PP_IOCTL, 0 x8b)
/* Release the port when you aren't using it */
#define PPRELEASE _IO(PP_IOCTL, 0 x8c)
/* Yield the port (release it if another driver is waiting,
* then reclaim) */
#define PPYIELD _IO(PP_IOCTL, 0 x8d)
/* Register device exclusively (must be before PPCLAIM). */
#define PPEXCL _IO(PP_IOCTL, 0 x8f)
/* Data line direction: non-zero for input mode. */
#define PPDATADIR _IOW(PP_IOCTL, 0 x90, int )
/* Negotiate a particular IEEE 1284 mode. */
#define PPNEGOT _IOW(PP_IOCTL, 0 x91, int )
/* Set control lines when an interrupt occurs. */
#define PPWCTLONIRQ _IOW(PP_IOCTL, 0 x92, unsigned char )
/* Clear (and return) interrupt count. */
#define PPCLRIRQ _IOR(PP_IOCTL, 0 x93, int )
/* Set the IEEE 1284 phase that we're in (e.g. IEEE1284_PH_FWD_IDLE) */
#define PPSETPHASE _IOW(PP_IOCTL, 0 x94, int )
/* Set and get port timeout (struct timeval's) */
#define PPGETTIME _IOR(PP_IOCTL, 0 x95, struct timeval)
#define PPSETTIME _IOW(PP_IOCTL, 0 x96, struct timeval)
/* Get available modes (what the hardware can do) */
#define PPGETMODES _IOR(PP_IOCTL, 0 x97, unsigned int )
/* Get the current mode and phaze */
#define PPGETMODE _IOR(PP_IOCTL, 0 x98, int )
#define PPGETPHASE _IOR(PP_IOCTL, 0 x99, int )
/* get/set flags */
#define PPGETFLAGS _IOR(PP_IOCTL, 0 x9a, int )
#define PPSETFLAGS _IOW(PP_IOCTL, 0 x9b, 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 /* _UAPI_LINUX_PPDEV_H */
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