ss_scanjet.c revision 1.2
1 /* $NetBSD: ss_scanjet.c,v 1.2 1996/03/19 03:05:15 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Kenneth Stailey. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Kenneth Stailey. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * special functions for the HP ScanJet IIc and IIcx 34 */ 35 36 #include <sys/types.h> 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/fcntl.h> 40 #include <sys/errno.h> 41 #include <sys/ioctl.h> 42 #include <sys/malloc.h> 43 #include <sys/buf.h> 44 #include <sys/proc.h> 45 #include <sys/user.h> 46 #include <sys/device.h> 47 #include <sys/conf.h> /* for cdevsw */ 48 #include <sys/scanio.h> 49 50 #include <scsi/scsi_all.h> 51 #include <scsi/scsi_scanner.h> 52 #include <scsi/scsiconf.h> 53 #include <scsi/ssvar.h> 54 55 #define SCANJET_RETRIES 4 56 57 int scanjet_get_params __P((struct ss_softc *)); 58 int scanjet_set_params __P((struct ss_softc *, struct scan_io *)); 59 int scanjet_trigger_scanner __P((struct ss_softc *)); 60 int scanjet_read __P((struct ss_softc *, struct buf *)); 61 62 /* only used internally */ 63 int scanjet_write __P((struct ss_softc *ss, char *buf, u_int size, int flags)); 64 int scanjet_set_window __P((struct ss_softc *ss)); 65 void scanjet_compute_sizes __P((struct ss_softc *)); 66 67 /* 68 * structure for the special handlers 69 */ 70 struct ss_special scanjet_special = { 71 scanjet_set_params, 72 scanjet_trigger_scanner, 73 scanjet_get_params, 74 NULL, /* no special minphys */ 75 scanjet_read, /* scsi 6-byte read */ 76 NULL, /* no "rewind" code (yet?) */ 77 NULL, /* no adf support right now */ 78 NULL /* no adf support right now */ 79 }; 80 81 /* 82 * scanjet_attach: attach special functions to ss 83 */ 84 void 85 scanjet_attach(ss, sa) 86 struct ss_softc *ss; 87 struct scsibus_attach_args *sa; 88 { 89 struct scsi_link *sc_link = sa->sa_sc_link; 90 91 SC_DEBUG(sc_link, SDEV_DB1, ("scanjet_attach: start\n")); 92 ss->sio.scan_scanner_type = 0; 93 94 /* first, check the model (which determines nothing yet) */ 95 96 if (!bcmp(sa->sa_inqbuf->product, "C1750A", 6)) { 97 ss->sio.scan_scanner_type = HP_SCANJET_IIC; 98 printf(": HP ScanJet IIc\n"); 99 } 100 if (!bcmp(sa->sa_inqbuf->product, "C2500A", 6)) { 101 ss->sio.scan_scanner_type = HP_SCANJET_IIC; 102 printf(": HP ScanJet IIcx\n"); 103 } 104 105 SC_DEBUG(sc_link, SDEV_DB1, ("mustek_attach: scanner_type = %d\n", 106 ss->sio.scan_scanner_type)); 107 108 /* now install special handlers */ 109 ss->special = &scanjet_special; 110 111 /* 112 * populate the scanio struct with legal values 113 */ 114 ss->sio.scan_width = 1200; 115 ss->sio.scan_height = 1200; 116 ss->sio.scan_x_resolution = 100; 117 ss->sio.scan_y_resolution = 100; 118 ss->sio.scan_x_origin = 0; 119 ss->sio.scan_y_origin = 0; 120 ss->sio.scan_brightness = 100; 121 ss->sio.scan_contrast = 100; 122 ss->sio.scan_quality = 100; 123 ss->sio.scan_image_mode = SIM_GRAYSCALE; 124 125 scanjet_compute_sizes(ss); 126 } 127 128 int 129 scanjet_get_params(ss) 130 struct ss_softc *ss; 131 { 132 133 return (0); 134 } 135 136 /* 137 * check the parameters if the scanjet is capable of fulfilling it 138 * but don't send the command to the scanner in case the user wants 139 * to change parameters by more than one call 140 */ 141 int 142 scanjet_set_params(ss, sio) 143 struct ss_softc *ss; 144 struct scan_io *sio; 145 { 146 int error; 147 148 #if 0 149 /* 150 * if the scanner is triggered, then rewind it 151 */ 152 if (ss->flags & SSF_TRIGGERED) { 153 error = scanjet_rewind_scanner(ss); 154 if (error) 155 return (error); 156 } 157 #endif 158 159 /* size constraints... */ 160 if (sio->scan_width == 0 || 161 sio->scan_x_origin + sio->scan_width > 10200 || /* 8.5" */ 162 sio->scan_height == 0 || 163 sio->scan_y_origin + sio->scan_height > 16800) /* 14" */ 164 return (EINVAL); 165 166 /* resolution (dpi)... */ 167 if (sio->scan_x_resolution < 100 || 168 sio->scan_x_resolution > 400 || 169 sio->scan_y_resolution < 100 || 170 sio->scan_y_resolution > 400) 171 return (EINVAL); 172 173 switch (sio->scan_image_mode) { 174 case SIM_BINARY_MONOCHROME: 175 case SIM_DITHERED_MONOCHROME: 176 case SIM_GRAYSCALE: 177 case SIM_COLOR: 178 break; 179 default: 180 return (EINVAL); 181 } 182 183 /* change ss_softc to the new values, but save ro-variables */ 184 sio->scan_scanner_type = ss->sio.scan_scanner_type; 185 bcopy(sio, &ss->sio, sizeof(struct scan_io)); 186 187 scanjet_compute_sizes(ss); 188 189 return (0); 190 } 191 192 /* 193 * trigger the scanner to start a scan operation 194 * this includes sending the mode- and window-data, 195 * and starting the scanner 196 */ 197 int 198 scanjet_trigger_scanner(ss) 199 struct ss_softc *ss; 200 { 201 char escape_codes[20]; 202 struct scsi_link *sc_link = ss->sc_link; 203 int error; 204 205 scanjet_compute_sizes(ss); 206 207 /* send parameters */ 208 error = scanjet_set_window(ss); 209 if (error) { 210 uprintf("set window failed\n"); 211 return (error); 212 } 213 214 /* send "trigger" operation */ 215 strcpy(escape_codes, "\033*f0S"); 216 error = scanjet_write(ss, escape_codes, strlen(escape_codes), 0); 217 if (error) { 218 uprintf("trigger failed\n"); 219 return (error); 220 } 221 222 return (0); 223 } 224 225 int 226 scanjet_read(ss, bp) 227 struct ss_softc *ss; 228 struct buf *bp; 229 { 230 struct scsi_rw_scanner cmd; 231 struct scsi_link *sc_link = ss->sc_link; 232 233 /* 234 * Fill out the scsi command 235 */ 236 bzero(&cmd, sizeof(cmd)); 237 cmd.opcode = READ; 238 239 /* 240 * Handle "fixed-block-mode" tape drives by using the 241 * block count instead of the length. 242 */ 243 _lto3b(bp->b_bcount, cmd.len); 244 245 /* 246 * go ask the adapter to do all this for us 247 */ 248 if (scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd, sizeof(cmd), 249 (u_char *) bp->b_data, bp->b_bcount, SCANJET_RETRIES, 100000, bp, 250 SCSI_NOSLEEP | SCSI_DATA_IN) != SUCCESSFULLY_QUEUED) 251 printf("%s: not queued\n", ss->sc_dev.dv_xname); 252 else { 253 ss->sio.scan_window_size -= bp->b_bcount; 254 if (ss->sio.scan_window_size < 0) 255 ss->sio.scan_window_size = 0; 256 } 257 258 return (0); 259 } 260 261 262 /* 263 * Do a synchronous write. Used to send control messages. 264 */ 265 int 266 scanjet_write(ss, buf, size, flags) 267 struct ss_softc *ss; 268 char *buf; 269 u_int size; 270 int flags; 271 { 272 struct scsi_rw_scanner cmd; 273 274 /* 275 * If it's a null transfer, return immediatly 276 */ 277 if (size == 0) 278 return (0); 279 bzero(&cmd, sizeof(cmd)); 280 cmd.opcode = WRITE; 281 _lto3b(size, cmd.len); 282 return (scsi_scsi_cmd(ss->sc_link, (struct scsi_generic *) &cmd, 283 sizeof(cmd), (u_char *) buf, size, 0, 100000, NULL, 284 flags | SCSI_DATA_OUT)); 285 } 286 287 #ifdef SCANJETDEBUG 288 static void show_es(char *es) 289 { 290 char *p = es; 291 while (*p) { 292 if (*p == '\033') 293 printf("[Esc]"); 294 else 295 printf("%c", *p); 296 ++p; 297 } 298 printf("\n"); 299 } 300 #endif 301 302 /* 303 * simulate SCSI_SET_WINDOW for ScanJets 304 */ 305 int 306 scanjet_set_window(ss) 307 struct ss_softc *ss; 308 { 309 char escape_codes[128], *p; 310 311 p = escape_codes; 312 313 sprintf(p, "\033*f%dP", ss->sio.scan_width / 4); 314 p += strlen(p); 315 sprintf(p, "\033*f%dQ", ss->sio.scan_height / 4); 316 p += strlen(p); 317 sprintf(p, "\033*f%dX", ss->sio.scan_x_origin / 4); 318 p += strlen(p); 319 sprintf(p, "\033*f%dY", ss->sio.scan_y_origin / 4); 320 p += strlen(p); 321 sprintf(p, "\033*a%dR", ss->sio.scan_x_resolution); 322 p += strlen(p); 323 sprintf(p, "\033*a%dS", ss->sio.scan_y_resolution); 324 p += strlen(p); 325 326 switch (ss->sio.scan_image_mode) { 327 case SIM_BINARY_MONOCHROME: 328 /* use "line art" mode */ 329 strcpy(p, "\033*a0T"); 330 p += strlen(p); 331 /* make image data be "min-is-white ala PBM */ 332 strcpy(p, "\033*a0I"); 333 p += strlen(p); 334 break; 335 case SIM_DITHERED_MONOCHROME: 336 /* use dithered mode */ 337 strcpy(p, "\033*a3T"); 338 p += strlen(p); 339 /* make image data be "min-is-white ala PBM */ 340 strcpy(p, "\033*a0I"); 341 p += strlen(p); 342 break; 343 case SIM_GRAYSCALE: 344 /* use grayscale mode */ 345 strcpy(p, "\033*a4T"); 346 p += strlen(p); 347 /* make image data be "min-is-black ala PGM */ 348 strcpy(p, "\033*a1I"); 349 p += strlen(p); 350 break; 351 case SIM_COLOR: 352 /* use RGB color mode */ 353 strcpy(p, "\033*a5T"); 354 p += strlen(p); 355 /* make image data be "min-is-black ala PPM */ 356 strcpy(p, "\033*a1I"); 357 p += strlen(p); 358 /* use pass-through matrix (disable NTSC) */ 359 strcpy(p, "\033*u2T"); 360 p += strlen(p); 361 } 362 363 sprintf(p, "\033*a%dG", ss->sio.scan_bits_per_pixel); 364 p += strlen(p); 365 sprintf(p, "\033*a%dL", (int)(ss->sio.scan_brightness) - 128); 366 p += strlen(p); 367 sprintf(p, "\033*a%dK", (int)(ss->sio.scan_contrast) - 128); 368 p += strlen(p); 369 370 return (scanjet_write(ss, escape_codes, p - escape_codes, 0)); 371 } 372 373 void 374 scanjet_compute_sizes(ss) 375 struct ss_softc *ss; 376 { 377 378 /* 379 * Deal with the fact that the HP ScanJet IIc uses 1/300" not 1/1200" 380 * as its base unit of measurement. PINT uses 1/1200" (yes I know 381 * ScanJet II's use decipoints as well but 1200 % 720 != 0) 382 */ 383 ss->sio.scan_width = (ss->sio.scan_width + 3) & 0xfffffffc; 384 ss->sio.scan_height = (ss->sio.scan_height + 3) & 0xfffffffc; 385 386 switch (ss->sio.scan_image_mode) { 387 case SIM_BINARY_MONOCHROME: 388 case SIM_DITHERED_MONOCHROME: 389 ss->sio.scan_bits_per_pixel = 1; 390 break; 391 case SIM_GRAYSCALE: 392 ss->sio.scan_bits_per_pixel = 8; 393 break; 394 case SIM_COLOR: 395 ss->sio.scan_bits_per_pixel = 24; 396 break; 397 } 398 399 ss->sio.scan_pixels_per_line = 400 (ss->sio.scan_width * ss->sio.scan_x_resolution) / 1200; 401 if (ss->sio.scan_bits_per_pixel == 1) 402 /* pad to byte boundary: */ 403 ss->sio.scan_pixels_per_line = 404 (ss->sio.scan_pixels_per_line + 7) & 0xfffffff8; 405 406 ss->sio.scan_lines = 407 (ss->sio.scan_height * ss->sio.scan_y_resolution) / 1200; 408 ss->sio.scan_window_size = ss->sio.scan_lines * 409 ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); 410 } 411
Indexes created Sat Sep 27 22:09:54 GMT 2025