1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2 /* 3 * linux/include/linux/ppdev.h 4 * 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/or 10 * modify it under the terms of the GNU General Public License 11 * as published by the Free Software Foundation; either version 12 * 2 of the License, or (at your option) any later version. 13 * 14 * Added PPGETTIME/PPSETTIME, Fred Barnes, 1999 15 * Added PPGETMODES/PPGETMODE/PPGETPHASE, Fred Barnes <frmb2@ukc.ac.uk>, 03/01/2001 16 */ 17 18 #ifndef _UAPI_LINUX_PPDEV_H 19 #define _UAPI_LINUX_PPDEV_H 20 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 34 struct 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