kopia lustrzana https://gitlab.com/sane-project/backends
279 wiersze
7.3 KiB
C
279 wiersze
7.3 KiB
C
/***************************************************************************
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* SANE - Scanner Access Now Easy.
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dc240.h
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03/12/01 - Peter Fales
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Based on the dc210 driver, (C) 1998 Brian J. Murrell (which is
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based on dc25 driver (C) 1998 by Peter Fales)
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This file (C) 2001 by Peter Fales
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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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This file implements a SANE backend for the Kodak DC-240
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digital camera. THIS IS EXTREMELY ALPHA CODE! USE AT YOUR OWN RISK!!
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(feedback to: dc240-devel@fales-lorenz.net)
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This backend is based somewhat on the dc25 backend included in this
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package by Peter Fales, and the dc210 backend by Brian J. Murrell
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <termios.h>
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#include <string.h>
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#ifndef TRUE
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#define TRUE (1==1)
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#endif
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#ifndef FALSE
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#define FALSE (!TRUE)
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#endif
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#ifndef NULL
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#define NULL 0L
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#endif
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typedef struct picture_info
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{
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int low_res;
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int size;
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}
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PictureInfo;
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typedef struct DC240_s
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{
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SANE_Int fd; /* file descriptor to talk to it */
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char *tty_name; /* the tty port name it's on */
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speed_t baud; /* current tty speed */
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SANE_Bool scanning; /* currently scanning an image? */
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SANE_Byte model;
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SANE_Byte ver_major;
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SANE_Byte ver_minor;
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SANE_Int pic_taken;
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SANE_Int pic_left;
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struct
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{
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unsigned int low_res:1;
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unsigned int low_batt:1;
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}
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flags;
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PictureInfo *Pictures; /* array of pictures */
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SANE_Int current_picture_number; /* picture being operated on */
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}
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DC240;
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typedef struct dc240_info_s
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{
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SANE_Byte model;
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SANE_Byte ver_major;
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SANE_Byte ver_minor;
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SANE_Int pic_taken;
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SANE_Int pic_left;
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struct
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{
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SANE_Int low_res:1;
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SANE_Int low_batt:1;
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}
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flags;
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}
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Dc240Info, *Dc240InfoPtr;
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static SANE_Int get_info (DC240 *);
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#define INIT_PCK {0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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/* ^^^^^^^^^^
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* Baud rate: (see pkt_speed structure)
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* 0x96 0x00 -> 9600 baud
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* 0x19 0x20 -> 19200 baud
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* 0x38 0x40 -> 38400 baud
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* 0x57 0x60 -> 57600 baud
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* 0x11 0x52 -> 115200 baud
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*/
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#define INFO_PCK {0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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#define SHOOT_PCK {0x7C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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#define ERASE_PCK {0x9D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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#define RES_PCK {0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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/* ^^^^
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* Resolution: 0x00 = low, 0x01 = high
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*/
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#define THUMBS_PCK {0x93, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x1A}
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/*
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*
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*/
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#define PICS_PCK {0x9A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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/*
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*
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*/
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#define PICS_INFO_PCK {0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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/*
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*
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*/
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#define OPEN_CARD_PCK {0x96, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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#define READ_DIR_PCK {0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
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/* ^^^^
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* 1=Report number of entries only
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*/
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struct pkt_speed
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{
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speed_t baud;
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SANE_Byte pkt_code[2];
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};
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#if defined (B57600) && defined (B115200)
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# define SPEEDS { { B9600, { 0x96, 0x00 } }, \
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{ B19200, { 0x19, 0x20 } }, \
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{ B38400, { 0x38, 0x40 } }, \
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{ B57600, { 0x57, 0x60 } }, \
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{ B115200, { 0x11, 0x52 } } }
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#else
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# define SPEEDS { { B9600, { 0x96, 0x00 } }, \
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{ B19200, { 0x19, 0x20 } }, \
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{ B38400, { 0x38, 0x40 } } }
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#endif
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#define HIGH_RES 0
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#define LOW_RES 1
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#define HIGHRES_WIDTH 1280
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#define HIGHRES_HEIGHT 960
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#define LOWRES_WIDTH 640
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#define LOWRES_HEIGHT 480
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/*
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* External definitions
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*/
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extern char *__progname; /* Defined in /usr/lib/crt0.o */
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struct cam_dirent
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{
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SANE_Char name[11];
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SANE_Byte attr;
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SANE_Byte create_time[2];
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SANE_Byte creat_date[2];
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long size;
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};
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#ifdef __GNUC__
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#define UNUSEDARG __attribute__ ((unused))
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#else
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#define UNUSEDARG
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#endif
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#ifdef OLD
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/* This is the layout of the directory in the camera - Unfortunately,
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* this only works in gcc.
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*/
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struct dir_buf
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{
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SANE_Byte entries_msb PACKED;
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SANE_Byte entries_lsb PACKED;
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struct cam_dirent entry[1000] PACKED;
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};
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#else
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/* So, we have to do it the hard way... */
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#define CAMDIRENTRYSIZE 20
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#define DIRENTRIES 1000
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#define get_name(entry) (SANE_Char*) &dir_buf2[2+CAMDIRENTRYSIZE*(entry)]
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#define get_attr(entry) dir_buf2[2+11+CAMDIRENTRYSIZE*(entry)]
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#define get_create_time(entry) \
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( dir_buf2[2+12+CAMDIRENTRYSIZE*(entry)] << 8 \
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+ dir_buf2[2+13+CAMDIRENTRYSIZE*(entry)])
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#endif
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struct cam_dirlist
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{
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SANE_Char name[48];
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struct cam_dirlist *next;
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};
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#include <sys/types.h>
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FILE *sanei_config_open (const char *filename);
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static SANE_Int init_dc240 (DC240 *);
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static void close_dc240 (SANE_Int);
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static SANE_Int read_data (SANE_Int fd, SANE_Byte * buf, SANE_Int sz);
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static SANE_Int end_of_data (SANE_Int fd);
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static PictureInfo *get_pictures_info (void);
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static SANE_Int get_picture_info (PictureInfo * pic, SANE_Int p);
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static SANE_Status snap_pic (SANE_Int fd);
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char *sanei_config_read (char *str, int n, FILE * stream);
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static SANE_Int read_dir (SANE_String dir);
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static SANE_Int read_info (SANE_String fname);
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static SANE_Int dir_insert (struct cam_dirent *entry);
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static SANE_Int dir_delete (SANE_String name);
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static SANE_Int send_data (SANE_Byte * buf);
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static void set_res (SANE_Int lowres);
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