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Diffstat (limited to 'backend/dc240.h')
| -rw-r--r-- | backend/dc240.h | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/backend/dc240.h b/backend/dc240.h new file mode 100644 index 0000000..3323fed --- /dev/null +++ b/backend/dc240.h @@ -0,0 +1,278 @@ +/*************************************************************************** + * 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); |