ss_scanjet.c revision 1.8
1 /* $NetBSD: ss_scanjet.c,v 1.8 1996/10/12 23:23:22 christos 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_ctl_write __P((struct ss_softc *, char *, u_int, int)); 64 int scanjet_ctl_read __P((struct ss_softc *, char *, u_int, int)); 65 int scanjet_set_window __P((struct ss_softc *)); 66 int scanjet_compute_sizes __P((struct ss_softc *)); 67 /* Maybe move to libkern? */ 68 __inline static int atoi __P((const char *)); 69 __inline static char *strchr __P((const char *, char)); 70 71 72 /* 73 * structure for the special handlers 74 */ 75 struct ss_special scanjet_special = { 76 scanjet_set_params, 77 scanjet_trigger_scanner, 78 scanjet_get_params, 79 NULL, /* no special minphys */ 80 scanjet_read, /* scsi 6-byte read */ 81 NULL, /* no "rewind" code (yet?) */ 82 NULL, /* no adf support right now */ 83 NULL /* no adf support right now */ 84 }; 85 86 /* 87 * scanjet_attach: attach special functions to ss 88 */ 89 void 90 scanjet_attach(ss, sa) 91 struct ss_softc *ss; 92 struct scsibus_attach_args *sa; 93 { 94 #ifdef SCSIDEBUG 95 struct scsi_link *sc_link = sa->sa_sc_link; 96 #endif 97 int error; 98 99 SC_DEBUG(sc_link, SDEV_DB1, ("scanjet_attach: start\n")); 100 ss->sio.scan_scanner_type = 0; 101 102 printf("\n%s: ", ss->sc_dev.dv_xname); 103 104 /* first, check the model (which determines nothing yet) */ 105 106 if (!bcmp(sa->sa_inqbuf->product, "C1750A", 6)) { 107 ss->sio.scan_scanner_type = HP_SCANJET_IIC; 108 printf("HP ScanJet IIc"); 109 } 110 if (!bcmp(sa->sa_inqbuf->product, "C2500A", 6)) { 111 ss->sio.scan_scanner_type = HP_SCANJET_IIC; 112 printf("HP ScanJet IIcx"); 113 } 114 115 SC_DEBUG(sc_link, SDEV_DB1, ("scanjet_attach: scanner_type = %d\n", 116 ss->sio.scan_scanner_type)); 117 118 /* now install special handlers */ 119 ss->special = &scanjet_special; 120 121 /* 122 * populate the scanio struct with legal values 123 */ 124 ss->sio.scan_width = 1200; 125 ss->sio.scan_height = 1200; 126 ss->sio.scan_x_resolution = 100; 127 ss->sio.scan_y_resolution = 100; 128 ss->sio.scan_x_origin = 0; 129 ss->sio.scan_y_origin = 0; 130 ss->sio.scan_brightness = 128; 131 ss->sio.scan_contrast = 128; 132 ss->sio.scan_quality = 100; 133 ss->sio.scan_image_mode = SIM_GRAYSCALE; 134 135 error = scanjet_set_window(ss); 136 if (error) { 137 printf(" set_window failed\n"); 138 return; 139 } 140 error = scanjet_compute_sizes(ss); 141 if (error) { 142 printf(" compute_sizes failed\n"); 143 return; 144 } 145 146 printf("\n"); 147 } 148 149 int 150 scanjet_get_params(ss) 151 struct ss_softc *ss; 152 { 153 154 return (0); 155 } 156 157 /* 158 * check the parameters if the scanjet is capable of fulfilling it 159 * but don't send the command to the scanner in case the user wants 160 * to change parameters by more than one call 161 */ 162 int 163 scanjet_set_params(ss, sio) 164 struct ss_softc *ss; 165 struct scan_io *sio; 166 { 167 int error; 168 169 #if 0 170 /* 171 * if the scanner is triggered, then rewind it 172 */ 173 if (ss->flags & SSF_TRIGGERED) { 174 error = scanjet_rewind_scanner(ss); 175 if (error) 176 return (error); 177 } 178 #endif 179 180 /* size constraints... */ 181 if (sio->scan_width == 0 || 182 sio->scan_x_origin + sio->scan_width > 10200 || /* 8.5" */ 183 sio->scan_height == 0 || 184 sio->scan_y_origin + sio->scan_height > 16800) /* 14" */ 185 return (EINVAL); 186 187 /* resolution (dpi)... */ 188 if (sio->scan_x_resolution < 100 || 189 sio->scan_x_resolution > 400 || 190 sio->scan_y_resolution < 100 || 191 sio->scan_y_resolution > 400) 192 return (EINVAL); 193 194 switch (sio->scan_image_mode) { 195 case SIM_BINARY_MONOCHROME: 196 case SIM_DITHERED_MONOCHROME: 197 case SIM_GRAYSCALE: 198 case SIM_COLOR: 199 break; 200 default: 201 return (EINVAL); 202 } 203 204 /* change ss_softc to the new values, but save ro-variables */ 205 sio->scan_scanner_type = ss->sio.scan_scanner_type; 206 bcopy(sio, &ss->sio, sizeof(struct scan_io)); 207 208 error = scanjet_set_window(ss); 209 if (error) { 210 uprintf("%s: set_window failed\n", ss->sc_dev.dv_xname); 211 return (error); 212 } 213 error = scanjet_compute_sizes(ss); 214 if (error) { 215 uprintf("%s: compute_sizes failed\n", ss->sc_dev.dv_xname); 216 return (error); 217 } 218 219 return (0); 220 } 221 222 /* 223 * trigger the scanner to start a scan operation 224 * this includes sending the mode- and window-data, 225 * and starting the scanner 226 */ 227 int 228 scanjet_trigger_scanner(ss) 229 struct ss_softc *ss; 230 { 231 char escape_codes[20]; 232 int error; 233 234 error = scanjet_set_window(ss); 235 if (error) { 236 uprintf("%s: set_window failed\n", ss->sc_dev.dv_xname); 237 return (error); 238 } 239 error = scanjet_compute_sizes(ss); 240 if (error) { 241 uprintf("%s: compute_sizes failed\n", ss->sc_dev.dv_xname); 242 return (error); 243 } 244 245 /* send "trigger" operation */ 246 strcpy(escape_codes, "\033*f0S"); 247 error = scanjet_ctl_write(ss, escape_codes, strlen(escape_codes), 0); 248 if (error) { 249 uprintf("%s: trigger_scanner failed\n", ss->sc_dev.dv_xname); 250 return (error); 251 } 252 253 return (0); 254 } 255 256 int 257 scanjet_read(ss, bp) 258 struct ss_softc *ss; 259 struct buf *bp; 260 { 261 struct scsi_rw_scanner cmd; 262 struct scsi_link *sc_link = ss->sc_link; 263 264 /* 265 * Fill out the scsi command 266 */ 267 bzero(&cmd, sizeof(cmd)); 268 cmd.opcode = READ; 269 270 /* 271 * Handle "fixed-block-mode" tape drives by using the 272 * block count instead of the length. 273 */ 274 _lto3b(bp->b_bcount, cmd.len); 275 276 /* 277 * go ask the adapter to do all this for us 278 */ 279 if (scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd, sizeof(cmd), 280 (u_char *) bp->b_data, bp->b_bcount, SCANJET_RETRIES, 100000, bp, 281 SCSI_NOSLEEP | SCSI_DATA_IN) != SUCCESSFULLY_QUEUED) 282 printf("%s: not queued\n", ss->sc_dev.dv_xname); 283 else { 284 ss->sio.scan_window_size -= bp->b_bcount; 285 if (ss->sio.scan_window_size < 0) 286 ss->sio.scan_window_size = 0; 287 } 288 289 return (0); 290 } 291 292 293 /* 294 * Do a synchronous write. Used to send control messages. 295 */ 296 int 297 scanjet_ctl_write(ss, buf, size, flags) 298 struct ss_softc *ss; 299 char *buf; 300 u_int size; 301 int flags; 302 { 303 struct scsi_rw_scanner cmd; 304 305 bzero(&cmd, sizeof(cmd)); 306 cmd.opcode = WRITE; 307 _lto3b(size, cmd.len); 308 return (scsi_scsi_cmd(ss->sc_link, (struct scsi_generic *) &cmd, 309 sizeof(cmd), (u_char *) buf, size, 0, 100000, NULL, 310 flags | SCSI_DATA_OUT)); 311 } 312 313 314 /* 315 * Do a synchronous read. Used to read responses to control messages. 316 */ 317 int 318 scanjet_ctl_read(ss, buf, size, flags) 319 struct ss_softc *ss; 320 char *buf; 321 u_int size; 322 int flags; 323 { 324 struct scsi_rw_scanner cmd; 325 326 bzero(&cmd, sizeof(cmd)); 327 cmd.opcode = READ; 328 _lto3b(size, cmd.len); 329 return (scsi_scsi_cmd(ss->sc_link, (struct scsi_generic *) &cmd, 330 sizeof(cmd), (u_char *) buf, size, 0, 100000, NULL, 331 flags | SCSI_DATA_IN)); 332 } 333 334 335 #ifdef SCANJETDEBUG 336 static void show_es(char *es) 337 { 338 char *p = es; 339 while (*p) { 340 if (*p == '\033') 341 printf("[Esc]"); 342 else 343 printf("%c", *p); 344 ++p; 345 } 346 printf("\n"); 347 } 348 #endif 349 350 /* 351 * simulate SCSI_SET_WINDOW for ScanJets 352 */ 353 int 354 scanjet_set_window(ss) 355 struct ss_softc *ss; 356 { 357 char escape_codes[128], *p; 358 359 p = escape_codes; 360 361 p += sprintf(p, "\033*f%ldP", ss->sio.scan_width / 4); 362 p += sprintf(p, "\033*f%ldQ", ss->sio.scan_height / 4); 363 p += sprintf(p, "\033*f%ldX", ss->sio.scan_x_origin / 4); 364 p += sprintf(p, "\033*f%ldY", ss->sio.scan_y_origin / 4); 365 p += sprintf(p, "\033*a%dR", ss->sio.scan_x_resolution); 366 p += sprintf(p, "\033*a%dS", ss->sio.scan_y_resolution); 367 368 switch (ss->sio.scan_image_mode) { 369 case SIM_BINARY_MONOCHROME: 370 ss->sio.scan_bits_per_pixel = 1; 371 /* use "line art" mode */ 372 strcpy(p, "\033*a0T"); 373 p += strlen(p); 374 /* make image data be "min-is-white ala PBM */ 375 strcpy(p, "\033*a0I"); 376 p += strlen(p); 377 break; 378 case SIM_DITHERED_MONOCHROME: 379 ss->sio.scan_bits_per_pixel = 1; 380 /* use dithered mode */ 381 strcpy(p, "\033*a3T"); 382 p += strlen(p); 383 /* make image data be "min-is-white ala PBM */ 384 strcpy(p, "\033*a0I"); 385 p += strlen(p); 386 break; 387 case SIM_GRAYSCALE: 388 ss->sio.scan_bits_per_pixel = 8; 389 /* use grayscale mode */ 390 strcpy(p, "\033*a4T"); 391 p += strlen(p); 392 /* make image data be "min-is-black ala PGM */ 393 strcpy(p, "\033*a1I"); 394 p += strlen(p); 395 break; 396 case SIM_COLOR: 397 ss->sio.scan_bits_per_pixel = 24; 398 /* use RGB color mode */ 399 strcpy(p, "\033*a5T"); 400 p += strlen(p); 401 /* make image data be "min-is-black ala PPM */ 402 strcpy(p, "\033*a1I"); 403 p += strlen(p); 404 /* use pass-through matrix (disable NTSC) */ 405 strcpy(p, "\033*u2T"); 406 p += strlen(p); 407 break; 408 } 409 410 p += sprintf(p, "\033*a%dG", ss->sio.scan_bits_per_pixel); 411 p += sprintf(p, "\033*a%dL", (int)(ss->sio.scan_brightness) - 128); 412 p += sprintf(p, "\033*a%dK", (int)(ss->sio.scan_contrast) - 128); 413 414 return (scanjet_ctl_write(ss, escape_codes, p - escape_codes, 0)); 415 } 416 417 /* atoi() and strchr() are from /sys/arch/amiga/dev/ite.c 418 and are only used in scanjet_compute_sizes */ 419 420 __inline static int 421 atoi(cp) 422 const char *cp; 423 { 424 int n; 425 426 for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++) 427 n = n * 10 + *cp - '0'; 428 429 return (n); 430 } 431 432 __inline static char * 433 strchr(cp, ch) 434 const char *cp; 435 char ch; 436 { 437 while (*cp && *cp != ch) cp++; 438 return (*cp ? (char *)cp : 0); 439 } 440 441 int 442 scanjet_compute_sizes(ss) 443 struct ss_softc *ss; 444 { 445 int error; 446 static char *wfail = "%s: interrogate write failed\n"; 447 static char *rfail = "%s: interrogate read failed\n"; 448 static char *dfail = "%s: bad data returned\n"; 449 char escape_codes[20]; 450 char response[20]; 451 char *p; 452 453 /* 454 * Deal with the fact that the HP ScanJet IIc uses 1/300" not 1/1200" 455 * as its base unit of measurement. PINT uses 1/1200" (yes I know 456 * ScanJet II's use decipoints as well but 1200 % 720 != 0) 457 */ 458 ss->sio.scan_width = (ss->sio.scan_width + 3) & 0xfffffffc; 459 ss->sio.scan_height = (ss->sio.scan_height + 3) & 0xfffffffc; 460 461 switch (ss->sio.scan_image_mode) { 462 case SIM_BINARY_MONOCHROME: 463 case SIM_DITHERED_MONOCHROME: 464 strcpy(escape_codes, "\033*s1025E"); /* bytes wide */ 465 break; 466 case SIM_GRAYSCALE: 467 case SIM_COLOR: 468 strcpy(escape_codes, "\033*s1024E"); /* pixels wide */ 469 break; 470 } 471 error = scanjet_ctl_write(ss, escape_codes, strlen(escape_codes), 0); 472 if (error) { 473 uprintf(wfail, ss->sc_dev.dv_xname); 474 return (error); 475 } 476 error = scanjet_ctl_read(ss, response, 20, 0); 477 if (error) { 478 uprintf(rfail, ss->sc_dev.dv_xname); 479 return (error); 480 } 481 p = strchr(response, 'd'); 482 if (p == 0) { 483 uprintf(dfail, ss->sc_dev.dv_xname); 484 return (EIO); 485 } 486 ss->sio.scan_pixels_per_line = atoi(p + 1); 487 if (ss->sio.scan_image_mode < SIM_GRAYSCALE) 488 ss->sio.scan_pixels_per_line *= 8; 489 490 strcpy(escape_codes, "\033*s1026E"); /* pixels high */ 491 error = scanjet_ctl_write(ss, escape_codes, strlen(escape_codes), 0); 492 if (error) { 493 uprintf(wfail, ss->sc_dev.dv_xname); 494 return (error); 495 } 496 error = scanjet_ctl_read(ss, response, 20, 0); 497 if (error) { 498 uprintf(rfail, ss->sc_dev.dv_xname); 499 return (error); 500 } 501 p = strchr(response, 'd'); 502 if (p == 0) { 503 uprintf(dfail, ss->sc_dev.dv_xname); 504 return (EIO); 505 } 506 ss->sio.scan_lines = atoi(p + 1); 507 508 ss->sio.scan_window_size = ss->sio.scan_lines * 509 ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); 510 511 return (0); 512 } 513
Indexes created Sat Sep 27 22:09:54 GMT 2025