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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
commit6e9c41a892ed0e0da326e0278b3221ce3f5713b8 (patch)
tree2e301d871bbeeb44aa57ff9cc070fcf3be484487 /backend/dc240.h
Initial import of sane-backends version 1.0.24-1.2
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+/***************************************************************************
+ * SANE - Scanner Access Now Easy.
+
+ dc240.h
+
+ 03/12/01 - Peter Fales
+
+ Based on the dc210 driver, (C) 1998 Brian J. Murrell (which is
+ based on dc25 driver (C) 1998 by Peter Fales)
+
+ This file (C) 2001 by Peter Fales
+
+ This file is part of the SANE package.
+
+ 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.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+
+ ***************************************************************************
+
+ This file implements a SANE backend for the Kodak DC-240
+ digital camera. THIS IS EXTREMELY ALPHA CODE! USE AT YOUR OWN RISK!!
+
+ (feedback to: dc240-devel@fales-lorenz.net)
+
+ This backend is based somewhat on the dc25 backend included in this
+ package by Peter Fales, and the dc210 backend by Brian J. Murrell
+
+ ***************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <string.h>
+
+#ifndef TRUE
+#define TRUE (1==1)
+#endif
+
+#ifndef FALSE
+#define FALSE (!TRUE)
+#endif
+
+#ifndef NULL
+#define NULL 0L
+#endif
+
+typedef struct picture_info
+{
+ int low_res;
+ int size;
+}
+PictureInfo;
+
+typedef struct DC240_s
+{
+ SANE_Int fd; /* file descriptor to talk to it */
+ char *tty_name; /* the tty port name it's on */
+ speed_t baud; /* current tty speed */
+ SANE_Bool scanning; /* currently scanning an image? */
+ SANE_Byte model;
+ SANE_Byte ver_major;
+ SANE_Byte ver_minor;
+ SANE_Int pic_taken;
+ SANE_Int pic_left;
+ struct
+ {
+ unsigned int low_res:1;
+ unsigned int low_batt:1;
+ }
+ flags;
+ PictureInfo *Pictures; /* array of pictures */
+ SANE_Int current_picture_number; /* picture being operated on */
+}
+DC240;
+
+typedef struct dc240_info_s
+{
+ SANE_Byte model;
+ SANE_Byte ver_major;
+ SANE_Byte ver_minor;
+ SANE_Int pic_taken;
+ SANE_Int pic_left;
+ struct
+ {
+ SANE_Int low_res:1;
+ SANE_Int low_batt:1;
+ }
+ flags;
+}
+Dc240Info, *Dc240InfoPtr;
+
+static SANE_Int get_info (DC240 *);
+
+#define INIT_PCK {0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+/* ^^^^^^^^^^
+ * Baud rate: (see pkt_speed structure)
+ * 0x96 0x00 -> 9600 baud
+ * 0x19 0x20 -> 19200 baud
+ * 0x38 0x40 -> 38400 baud
+ * 0x57 0x60 -> 57600 baud
+ * 0x11 0x52 -> 115200 baud
+ */
+#define INFO_PCK {0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+#define SHOOT_PCK {0x7C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+#define ERASE_PCK {0x9D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+#define RES_PCK {0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+/* ^^^^
+ * Resolution: 0x00 = low, 0x01 = high
+ */
+#define THUMBS_PCK {0x93, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x1A}
+/*
+ *
+ */
+#define PICS_PCK {0x9A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+/*
+ *
+ */
+#define PICS_INFO_PCK {0x91, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+/*
+ *
+ */
+#define OPEN_CARD_PCK {0x96, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+#define READ_DIR_PCK {0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A}
+/* ^^^^
+ * 1=Report number of entries only
+ */
+
+struct pkt_speed
+{
+ speed_t baud;
+ SANE_Byte pkt_code[2];
+};
+
+#if defined (B57600) && defined (B115200)
+# define SPEEDS { { B9600, { 0x96, 0x00 } }, \
+ { B19200, { 0x19, 0x20 } }, \
+ { B38400, { 0x38, 0x40 } }, \
+ { B57600, { 0x57, 0x60 } }, \
+ { B115200, { 0x11, 0x52 } } }
+#else
+# define SPEEDS { { B9600, { 0x96, 0x00 } }, \
+ { B19200, { 0x19, 0x20 } }, \
+ { B38400, { 0x38, 0x40 } } }
+#endif
+
+#define HIGH_RES 0
+#define LOW_RES 1
+
+#define HIGHRES_WIDTH 1280
+#define HIGHRES_HEIGHT 960
+
+#define LOWRES_WIDTH 640
+#define LOWRES_HEIGHT 480
+
+/*
+ * External definitions
+ */
+
+extern char *__progname; /* Defined in /usr/lib/crt0.o */
+
+
+struct cam_dirent
+{
+ SANE_Char name[11];
+ SANE_Byte attr;
+ SANE_Byte create_time[2];
+ SANE_Byte creat_date[2];
+ long size;
+};
+
+#ifdef __GNUC__
+#define UNUSEDARG __attribute__ ((unused))
+#else
+#define UNUSEDARG
+#endif
+
+#ifdef OLD
+
+/* This is the layout of the directory in the camera - Unfortunately,
+ * this only works in gcc.
+ */
+struct dir_buf
+{
+ SANE_Byte entries_msb PACKED;
+ SANE_Byte entries_lsb PACKED;
+ struct cam_dirent entry[1000] PACKED;
+};
+#else
+
+/* So, we have to do it the hard way... */
+
+#define CAMDIRENTRYSIZE 20
+#define DIRENTRIES 1000
+
+
+#define get_name(entry) (SANE_Char*) &dir_buf2[2+CAMDIRENTRYSIZE*(entry)]
+#define get_attr(entry) dir_buf2[2+11+CAMDIRENTRYSIZE*(entry)]
+#define get_create_time(entry) \
+ ( dir_buf2[2+12+CAMDIRENTRYSIZE*(entry)] << 8 \
+ + dir_buf2[2+13+CAMDIRENTRYSIZE*(entry)])
+
+
+#endif
+
+struct cam_dirlist
+{
+ SANE_Char name[48];
+ struct cam_dirlist *next;
+};
+
+
+
+#include <sys/types.h>
+
+FILE *sanei_config_open (const char *filename);
+
+static SANE_Int init_dc240 (DC240 *);
+
+static void close_dc240 (SANE_Int);
+
+static SANE_Int read_data (SANE_Int fd, SANE_Byte * buf, SANE_Int sz);
+
+static SANE_Int end_of_data (SANE_Int fd);
+
+static PictureInfo *get_pictures_info (void);
+
+static SANE_Int get_picture_info (PictureInfo * pic, SANE_Int p);
+
+static SANE_Status snap_pic (SANE_Int fd);
+
+char *sanei_config_read (char *str, int n, FILE * stream);
+
+static SANE_Int read_dir (SANE_String dir);
+
+static SANE_Int read_info (SANE_String fname);
+
+static SANE_Int dir_insert (struct cam_dirent *entry);
+
+static SANE_Int dir_delete (SANE_String name);
+
+static SANE_Int send_data (SANE_Byte * buf);
+
+static void set_res (SANE_Int lowres);