kopia lustrzana https://gitlab.com/sane-project/backends
185 wiersze
5.0 KiB
C
185 wiersze
5.0 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 2001 Stéphane Voltz <svoltz@wanadoo.fr>
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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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This file implements a SANE backend for Umax PP flatbed scanners. */
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#ifdef HAVE_LINUX_PPDEV_H
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#include <linux/parport.h>
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#include <linux/ppdev.h>
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#include <sys/ioctl.h>
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#endif
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#include "umax_pp_low.h"
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#ifndef _UMAX1220P_
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#define _UMAX1220P_
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#define UMAX1220P_OK 0
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#define UMAX1220P_NOSCANNER 1
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#define UMAX1220P_TRANSPORT_FAILED 2
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#define UMAX1220P_PROBE_FAILED 3
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#define UMAX1220P_SCANNER_FAILED 4
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#define UMAX1220P_PARK_FAILED 5
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#define UMAX1220P_START_FAILED 6
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#define UMAX1220P_READ_FAILED 7
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#define UMAX1220P_BUSY 8
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/*
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probes the port for an umax1220p scanner
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initialize transport layer
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probe scanner
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on success returns UMAX1220P_OK,
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else one of the error above.
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*/
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extern int sanei_umax_pp_attach (int port);
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/*
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recognizes 1220P from 2000P
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on success returns UMAX1220P_OK,
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else one of the error above.
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*/
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extern int sanei_umax_pp_model (int port, int *model);
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/*
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if on=1 -> lights scanner lamp
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if on=0 -> lights off scanner lamp
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on success returns UMAX1220P_OK,
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else one of the error above.
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*/
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extern int sanei_umax_pp_lamp (int on);
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/*
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probes the port for an umax1220p scanner
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initialize transport layer
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initialize scanner
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on succes returns UMAX1220P_OK,
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else one of the error above.
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*/
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extern int sanei_umax_pp_open (int port);
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/*
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release any ressource acquired during open
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since there may be only one scanner, no port parameter
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*/
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extern int sanei_umax_pp_close (void);
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/*
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stops any pending action, then parks the head
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*/
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extern int sanei_umax_pp_cancel (void);
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/* starts scanning:
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- find scanner origin
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- does channel gain calibration if needed
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- does calibration
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- initialize scan operation
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x, y, width and height are expressed in 600 dpi unit
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dpi must be 75, 150, 300, 600 or 1200
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color is true for color scan, false for gray-levels
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gain value is 256*red_gain+16*green_gain+blue_gain
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if gain is given (ie <> 0), auto gain will not be performed
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returns UMAX1220P_OK on success, or one of the error above
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if successful, rbpp holds bytes/pixel, rth the height and rtw
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the width of scanned area expressed in pixels
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*/
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extern int sanei_umax_pp_start (int x, int y, int width, int height, int dpi,
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int color, int autoset, int gain,
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int highlight, int *rbpp, int *rtw, int *rth);
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/* reads one block of data from scanner
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returns UMAX1220P_OK on success, or UMAX1220P_READ_FAILED on error
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it also sets internal cancel flag on error
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len if the length of the block needed
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window if the width in pixels of the scanned area
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dpi is the resolution, it is used to choose the best read method
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last is true if it is the last block of the scan
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buffer will hold the data read
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*/
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extern int sanei_umax_pp_read (long len, int window, int dpi, int last,
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unsigned char *buffer);
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/* get ASIC status from scanner
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returns UMAX1220P_OK if scanner idle, or UMAX1220P_BUSY if
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scanner's motor is on
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*/
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extern int sanei_umax_pp_status (void);
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/* set auto calibration 0: no, else yes */
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extern void sanei_umax_pp_setauto (int mode);
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/* set umax astra model number */
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extern void sanei_umax_pp_setastra (int val);
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/* set gamma tables */
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extern void sanei_umax_pp_gamma (int *red, int *green, int *blue);
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#endif
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