cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ppdev.h (3300B)

      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
     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 */