ppdev.h
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上传日期:2013-04-10
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- /*
- * linux/drivers/char/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
- */
- #define PP_MAJOR 99
- #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)