2003-10-22 19:15:18 +00:00
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/* sane - Scanner Access Now Easy.
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Copyright (C) 2003 Gerhard Jaeger <gerhard@gjaeger.de>
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, the authors of SANE give permission for
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additional uses of the libraries contained in this release of SANE.
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The exception is that, if you link a SANE library with other files
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to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public
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License. Your use of that executable is in no way restricted on
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account of linking the SANE library code into it.
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This exception does not, however, invalidate any other reasons why
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the executable file might be covered by the GNU General Public
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License.
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If you submit changes to SANE to the maintainers to be included in
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a subsequent release, you agree by submitting the changes that
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those changes may be distributed with this exception intact.
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If you write modifications of your own for SANE, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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*/
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/** @file sanei_pp.h
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* This file implements an interface for accessing the parallel-port
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*
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* @sa sanei_pp.h
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*/
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#ifndef sanei_pp_h
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#define sanei_pp_h
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#include <sys/types.h>
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#include <sane/sane.h>
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2003-10-23 15:11:07 +00:00
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/** some modes, we'd like to see/use... */
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enum sanei_pp_mode {
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SANEI_PP_MODE_SPP = (1<<1),
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SANEI_PP_MODE_BIDI = (1<<2),
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SANEI_PP_MODE_EPP = (1<<4),
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SANEI_PP_MODE_ECP = (1<<8)
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};
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2003-10-26 10:58:01 +00:00
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/** Initialize sanei_pp.
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*
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* This function must be called before any other sanei_pp function.
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*/
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extern SANE_Status sanei_pp_init( void );
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2003-10-22 19:15:18 +00:00
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/**
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2003-10-23 15:11:07 +00:00
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* Function to open a parport device.
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*
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* @param dev -
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* @param fd -
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* @return
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2003-10-22 19:15:18 +00:00
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*/
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extern SANE_Status sanei_pp_open( const char *dev, int *fd );
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/**
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2003-10-23 15:11:07 +00:00
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* Function to close a previously opened parport device.
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*
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* @param fd - handle of the device to close
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2003-10-22 19:15:18 +00:00
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*/
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extern void sanei_pp_close( int fd );
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/**
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2003-10-23 15:11:07 +00:00
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* Function to claim a parport device
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*
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* @param fd - handle of the device to claim
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* @return
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2003-10-22 19:15:18 +00:00
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*/
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extern SANE_Status sanei_pp_claim( int fd );
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/**
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2003-10-23 15:11:07 +00:00
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* Function to release a previously claimed device
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*
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* @param fd - handle of the device to release
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* @return
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2003-10-22 19:15:18 +00:00
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*/
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extern SANE_Status sanei_pp_release( int fd );
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/**
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2003-10-23 15:11:07 +00:00
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* @param fd -
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* @param mode -
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* @return
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*/
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extern SANE_Status sanei_pp_getmode( int fd, int *mode );
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/**
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* @param fd -
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* @param val -
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* @return
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2003-10-22 19:15:18 +00:00
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*/
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extern SANE_Status sanei_pp_outb_data( int fd, SANE_Byte val );
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extern SANE_Status sanei_pp_outb_ctrl( int fd, SANE_Byte val );
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extern SANE_Status sanei_pp_outb_addr( int fd, SANE_Byte val );
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2003-10-23 15:11:07 +00:00
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/**
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* @param fd -
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* @return
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*/
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2003-10-22 19:15:18 +00:00
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extern SANE_Byte sanei_pp_inb_data( int fd );
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extern SANE_Byte sanei_pp_inb_stat( int fd );
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extern SANE_Byte sanei_pp_inb_ctrl( int fd );
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extern SANE_Byte sanei_pp_inb_epp ( int fd );
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2003-10-26 10:58:01 +00:00
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/** function to delay execution for some micro-seconds.
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* Please not, that the accuracy highly depends on your system architechture
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* and the time to delay. It is internally implemented as system calls to
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* gettimeofday().
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*
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* @param usec - number of micro-seconds to delay
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*/
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extern void sanei_pp_udelay( unsigned long usec );
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2003-10-22 19:15:18 +00:00
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#endif
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