1 /*************************************************************************** 2 * SANE - Scanner Access Now Easy. 3 4 dc25.h 5 6 6/1/98 7 8 This file (C) 1998 Peter Fales 9 10 This file is part of the SANE package. 11 12 This program is free software; you can redistribute it and/or 13 modify it under the terms of the GNU General Public License as 14 published by the Free Software Foundation; either version 2 of the 15 License, or (at your option) any later version. 16 17 This program is distributed in the hope that it will be useful, but 18 WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20 General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program. If not, see <https://www.gnu.org/licenses/>. 24 25 As a special exception, the authors of SANE give permission for 26 additional uses of the libraries contained in this release of SANE. 27 28 The exception is that, if you link a SANE library with other files 29 to produce an executable, this does not by itself cause the 30 resulting executable to be covered by the GNU General Public 31 License. Your use of that executable is in no way restricted on 32 account of linking the SANE library code into it. 33 34 This exception does not, however, invalidate any other reasons why 35 the executable file might be covered by the GNU General Public 36 License. 37 38 If you submit changes to SANE to the maintainers to be included in 39 a subsequent release, you agree by submitting the changes that 40 those changes may be distributed with this exception intact. 41 42 If you write modifications of your own for SANE, it is your choice 43 whether to permit this exception to apply to your modifications. 44 If you do not wish that, delete this exception notice. 45 46 *************************************************************************** 47 48 This file implements a SANE backend for the Kodak DC-25 (and 49 probably the DC-20) digital cameras. THIS IS EXTREMELY ALPHA CODE! 50 USE AT YOUR OWN RISK!! 51 52 (feedback to: dc25-devel@fales-lorenz.net) 53 54 This backend is based heavily on the dc20ctrl package by Ugo 55 Paternostro <paterno@dsi.unifi.it>. I've attached his header below: 56 57 *************************************************************************** 58 59 * Copyright (C) 1998 Ugo Paternostro <paterno@dsi.unifi.it> 60 * 61 * This file is part of the dc20ctrl package. The complete package can be 62 * downloaded from: 63 * http://aguirre.dsi.unifi.it/~paterno/binaries/dc20ctrl.tar.gz 64 * 65 * This package is derived from the dc20 package, built by Karl Hakimian 66 * <hakimian@aha.com> that you can find it at ftp.eecs.wsu.edu in the 67 * /pub/hakimian directory. The complete URL is: 68 * ftp://ftp.eecs.wsu.edu/pub/hakimian/dc20.tar.gz 69 * 70 * This package also includes a slightly modified version of the Comet to ppm 71 * conversion routine written by YOSHIDA Hideki <hideki@yk.rim.or.jp> 72 * 73 * This program is free software; you can redistribute it and/or modify 74 * it under the terms of the GNU General Public License as published 75 * the Free Software Foundation; either version 2 of the License, or 76 * (at your option) any later version. 77 * 78 * This program is distributed in the hope that it will be useful, 79 * but WITHOUT ANY WARRANTY; without even the implied warranty of 80 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 81 * GNU General Public License for more details. 82 * 83 * You should have received a copy of the GNU General Public License 84 * along with this program; if not, write to the Free Software 85 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 86 * 87 88 ***************************************************************************/ 89 90 #include <stdio.h> 91 #include <stdlib.h> 92 #include <unistd.h> 93 #include <fcntl.h> 94 #include <termios.h> 95 #include <string.h> 96 97 #ifndef TRUE 98 #define TRUE (1==1) 99 #endif 100 101 #ifndef FALSE 102 #define FALSE (!TRUE) 103 #endif 104 105 #ifndef NULL 106 #define NULL 0L 107 #endif 108 109 typedef struct dc20_info_s { 110 unsigned char model; 111 unsigned char ver_major; 112 unsigned char ver_minor; 113 int pic_taken; 114 int pic_left; 115 struct { 116 unsigned int low_res:1; 117 unsigned int low_batt:1; 118 } flags; 119 } Dc20Info, *Dc20InfoPtr; 120 121 static Dc20Info *get_info (int); 122 123 #define INIT_PCK {0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A} 124 /* ^^^^^^^^^^ 125 * Baud rate: (see pkt_speed structure) 126 * 0x96 0x00 -> 9600 baud 127 * 0x19 0x20 -> 19200 baud 128 * 0x38 0x40 -> 38400 baud 129 * 0x57 0x60 -> 57600 baud 130 * 0x11 0x52 -> 115200 baud 131 */ 132 #define INFO_PCK {0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A} 133 #define SHOOT_PCK {0x77, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A} 134 #define ERASE_PCK {0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A} 135 #define RES_PCK {0x71, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A} 136 /* ^^^^ 137 * Resolution: 0x00 = high, 0x01 = low 138 */ 139 #define THUMBS_PCK {0x56, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A} 140 /* ^^^^ 141 * Thumbnail number 142 */ 143 #define PICS_PCK {0x51, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1A} 144 /* ^^^^ 145 * Picture number 146 */ 147 148 struct pkt_speed { 149 speed_t baud; 150 unsigned char pkt_code[2]; 151 }; 152 153 #define DEFAULT_TTY_BAUD B38400 154 155 #define HIGH_RES 0 156 #define LOW_RES 1 157 158 /* 159 * Image parameters 160 */ 161 162 #define LOW_CAMERA_HEADER 256 163 #define HIGH_CAMERA_HEADER 512 164 #define CAMERA_HEADER(r) ( (r) ? LOW_CAMERA_HEADER : HIGH_CAMERA_HEADER ) 165 166 #define LOW_WIDTH 256 167 #define HIGH_WIDTH 512 168 #define WIDTH(r) ( (r) ? LOW_WIDTH : HIGH_WIDTH ) 169 170 #define HEIGHT 243 171 172 #define LEFT_MARGIN 1 173 174 #define LOW_RIGHT_MARGIN 5 175 #define HIGH_RIGHT_MARGIN 10 176 #define RIGHT_MARGIN(r) ( (r) ? LOW_RIGHT_MARGIN : HIGH_RIGHT_MARGIN ) 177 178 #define TOP_MARGIN 1 179 180 #define BOTTOM_MARGIN 1 181 182 #define BLOCK_SIZE 1024 183 184 #define LOW_BLOCKS 61 185 #define HIGH_BLOCKS 122 186 #define BLOCKS(r) ( (r) ? LOW_BLOCKS : HIGH_BLOCKS ) 187 188 #define LOW_IMAGE_SIZE ( LOW_BLOCKS * BLOCK_SIZE ) 189 #define HIGH_IMAGE_SIZE ( HIGH_BLOCKS * BLOCK_SIZE ) 190 #define IMAGE_SIZE(r) ( (r) ? LOW_IMAGE_SIZE : HIGH_IMAGE_SIZE ) 191 #define MAX_IMAGE_SIZE ( HIGH_IMAGE_SIZE ) 192 193 /* 194 * Comet file 195 */ 196 197 #define COMET_MAGIC "COMET" 198 #define COMET_HEADER_SIZE 128 199 #define COMET_EXT "cmt" 200 201 /* 202 * Pixmap structure 203 */ 204 205 struct pixmap { 206 int width; 207 int height; 208 int components; 209 unsigned char *planes; 210 }; 211 212 /* 213 * Rotations 214 */ 215 216 #define ROT_STRAIGHT 0x00 217 #define ROT_LEFT 0x01 218 #define ROT_RIGHT 0x02 219 #define ROT_HEADDOWN 0x03 220 221 #define ROT_MASK 0x03 222 223 /* 224 * File formats 225 */ 226 227 #define SAVE_RAW 0x01 228 #define SAVE_GREYSCALE 0x02 229 #define SAVE_24BITS 0x04 230 #define SAVE_FILES 0x07 231 #define SAVE_FORMATS 0x38 232 #define SAVE_ADJASPECT 0x80 233 234 /* 235 * External definitions 236 */ 237 238 extern char *__progname; /* Defined in /usr/lib/crt0.o */ 239 240 241 242 #include <sys/types.h> 243 244 FILE * sanei_config_open (const char *filename); 245 246 char *sanei_config_read (char *str, int n, FILE * stream); 247 248 static int init_dc20 (char *, speed_t); 249 250 static void close_dc20 (int); 251 252 static int read_data (int fd, unsigned char *buf, int sz); 253 254 static int end_of_data (int fd); 255 256 static int set_pixel_rgb (struct pixmap *, int, int, unsigned char, unsigned char, unsigned char); 257 258 static struct pixmap *alloc_pixmap (int x, int y, int d); 259 260 static void free_pixmap (struct pixmap *p); 261 262 static int zoom_x (struct pixmap *source, struct pixmap *dest); 263 264 static int zoom_y (struct pixmap *source, struct pixmap *dest); 265 266 static int comet_to_pixmap (unsigned char *, struct pixmap *); 267