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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.
*
*/
#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)
/* IEEE1284 modes:
Nibble mode, byte mode, ECP, ECPRLE and EPP are their own
'extensibility request' values. Others are special.
'Real' ECP modes must have the IEEE1284_MODE_ECP bit set. */
#define IEEE1284_MODE_NIBBLE 0
#define IEEE1284_MODE_BYTE (1<<0)
#define IEEE1284_MODE_COMPAT (1<<8)
#define IEEE1284_MODE_BECP (1<<9) /* Bounded ECP mode */
#define IEEE1284_MODE_ECP (1<<4)
#define IEEE1284_MODE_ECPRLE (IEEE1284_MODE_ECP | (1<<5))
#define IEEE1284_MODE_ECPSWE (1<<10) /* Software-emulated */
#define IEEE1284_MODE_EPP (1<<6)
#define IEEE1284_MODE_EPPSL (1<<11) /* EPP 1.7 */
#define IEEE1284_MODE_EPPSWE (1<<12) /* Software-emulated */
#define IEEE1284_DEVICEID (1<<2) /* This is a flag */
/* For the benefit of parport_read/write, you can use these with
* parport_negotiate to use address operations. They have no effect
* other than to make parport_read/write use address transfers. */
#define IEEE1284_ADDR (1<<13) /* This is a flag */
#define IEEE1284_DATA 0 /* So is this */
/* IEEE1284 phases */
enum ieee1284_phase {
IEEE1284_PH_FWD_DATA,
IEEE1284_PH_FWD_IDLE,
IEEE1284_PH_TERMINATE,
IEEE1284_PH_NEGOTIATION,
IEEE1284_PH_HBUSY_DNA,
IEEE1284_PH_REV_IDLE,
IEEE1284_PH_HBUSY_DAVAIL,
IEEE1284_PH_REV_DATA,
IEEE1284_PH_ECP_SETUP,
IEEE1284_PH_ECP_FWD_TO_REV,
IEEE1284_PH_ECP_REV_TO_FWD
};
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