/* $OpenBSD: ss_scanjet.c,v 1.18 1997/03/11 12:06:49 kstailey Exp $ */ /* $NetBSD: ss_scanjet.c,v 1.6 1996/05/18 22:58:01 christos Exp $ */ /* * Copyright (c) 1995 Kenneth Stailey. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Kenneth Stailey. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * special functions for the HP ScanJet IIc and IIcx */ #include #include #include #include #include #include #include #include #include #include #include #include /* for cdevsw */ #include #include #include #include #include #define SCANJET_RETRIES 4 int scanjet_set_params __P((struct ss_softc *, struct scan_io *)); int scanjet_trigger_scanner __P((struct ss_softc *)); int scanjet_read __P((struct ss_softc *, struct buf *)); /* only used internally */ int scanjet_ctl_write __P((struct ss_softc *, char *, u_int, int)); int scanjet_ctl_read __P((struct ss_softc *, char *, u_int, int)); int scanjet_set_window __P((struct ss_softc *, int)); int scanjet_compute_sizes __P((struct ss_softc *, int)); /* Maybe move to libkern? */ __inline static int atoi __P((const char *)); __inline static char *strchr __P((/* const */ char *, char)); /* * structure for the special handlers */ struct ss_special scanjet_special = { scanjet_set_params, scanjet_trigger_scanner, NULL, NULL, /* no special minphys */ scanjet_read, /* scsi 6-byte read */ NULL, /* no "rewind" code (yet?) */ NULL, /* no adf support right now */ NULL /* no adf support right now */ }; /* * scanjet_attach: attach special functions to ss */ void scanjet_attach(ss, sa) struct ss_softc *ss; struct scsibus_attach_args *sa; { #ifdef SCSIDEBUG struct scsi_link *sc_link = sa->sa_sc_link; #endif int error; SC_DEBUG(sc_link, SDEV_DB1, ("scanjet_attach: start\n")); ss->sio.scan_scanner_type = 0; printf("\n%s: ", ss->sc_dev.dv_xname); /* first, check the model (which determines nothing yet) */ if (!bcmp(sa->sa_inqbuf->product, "C1750A", 6)) { ss->sio.scan_scanner_type = HP_SCANJET_IIC; printf("HP ScanJet IIc"); } if (!bcmp(sa->sa_inqbuf->product, "C2500A", 6)) { ss->sio.scan_scanner_type = HP_SCANJET_IIC; printf("HP ScanJet IIcx"); } if (!bcmp(sa->sa_inqbuf->product, "C1130A", 6)) { ss->sio.scan_scanner_type = HP_SCANJET_IIC; printf("HP ScanJet 4p"); } SC_DEBUG(sc_link, SDEV_DB1, ("scanjet_attach: scanner_type = %d\n", ss->sio.scan_scanner_type)); /* now install special handlers */ ss->special = scanjet_special; /* * fill in the rest of the scan_io struct by calling * set_window and compute_sizes routines */ error = scanjet_set_window(ss, SCSI_POLL); if (error) { printf(" set_window failed\n"); return; } error = scanjet_compute_sizes(ss, SCSI_POLL); if (error) { printf(" compute_sizes failed\n"); return; } printf("\n"); } /* * check the parameters if the scanjet is capable of fulfilling it * but don't send the command to the scanner in case the user wants * to change parameters by more than one call */ int scanjet_set_params(ss, sio) struct ss_softc *ss; struct scan_io *sio; { int error; #if 0 /* * if the scanner is triggered, then rewind it */ if (ss->flags & SSF_TRIGGERED) { error = scanjet_rewind_scanner(ss); if (error) return (error); } #endif /* size constraints... */ if (sio->scan_width == 0 || sio->scan_x_origin + sio->scan_width > 10200 || /* 8.5" */ sio->scan_height == 0 || sio->scan_y_origin + sio->scan_height > 16800) /* 14" */ return (EINVAL); /* resolution (dpi)... */ if (sio->scan_x_resolution < 100 || sio->scan_x_resolution > 400 || sio->scan_y_resolution < 100 || sio->scan_y_resolution > 400) return (EINVAL); switch (sio->scan_image_mode) { case SIM_BINARY_MONOCHROME: case SIM_DITHERED_MONOCHROME: case SIM_GRAYSCALE: case SIM_COLOR: break; default: return (EINVAL); } /* change ss_softc to the new values, but save ro-variables */ sio->scan_scanner_type = ss->sio.scan_scanner_type; bcopy(sio, &ss->sio, sizeof(struct scan_io)); error = scanjet_set_window(ss, 0); if (error) { uprintf("%s: set_window failed\n", ss->sc_dev.dv_xname); return (error); } error = scanjet_compute_sizes(ss, 0); if (error) { uprintf("%s: compute_sizes failed\n", ss->sc_dev.dv_xname); return (error); } return (0); } /* * trigger the scanner to start a scan operation * this includes sending the mode- and window-data, * and starting the scanner */ int scanjet_trigger_scanner(ss) struct ss_softc *ss; { char escape_codes[20]; int error; error = scanjet_set_window(ss, 0); if (error) { uprintf("%s: set_window failed\n", ss->sc_dev.dv_xname); return (error); } error = scanjet_compute_sizes(ss, 0); if (error) { uprintf("%s: compute_sizes failed\n", ss->sc_dev.dv_xname); return (error); } /* send "trigger" operation */ strcpy(escape_codes, "\033*f0S"); error = scanjet_ctl_write(ss, escape_codes, strlen(escape_codes), 0); if (error) { uprintf("%s: trigger_scanner failed\n", ss->sc_dev.dv_xname); return (error); } return (0); } int scanjet_read(ss, bp) struct ss_softc *ss; struct buf *bp; { struct scsi_rw_scanner cmd; struct scsi_link *sc_link = ss->sc_link; /* * Fill out the scsi command */ bzero(&cmd, sizeof(cmd)); cmd.opcode = READ; /* * Handle "fixed-block-mode" tape drives by using the * block count instead of the length. */ _lto3b(bp->b_bcount, cmd.len); /* * go ask the adapter to do all this for us */ if (scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd, sizeof(cmd), (u_char *) bp->b_data, bp->b_bcount, SCANJET_RETRIES, 100000, bp, SCSI_NOSLEEP | SCSI_DATA_IN) != SUCCESSFULLY_QUEUED) printf("%s: not queued\n", ss->sc_dev.dv_xname); else { ss->sio.scan_window_size -= bp->b_bcount; if (ss->sio.scan_window_size < 0) ss->sio.scan_window_size = 0; } return (0); } /* * Do a synchronous write. Used to send control messages. */ int scanjet_ctl_write(ss, buf, size, flags) struct ss_softc *ss; char *buf; u_int size; int flags; { struct scsi_rw_scanner cmd; bzero(&cmd, sizeof(cmd)); cmd.opcode = WRITE; _lto3b(size, cmd.len); return (scsi_scsi_cmd(ss->sc_link, (struct scsi_generic *) &cmd, sizeof(cmd), (u_char *) buf, size, 0, 100000, NULL, flags | SCSI_DATA_OUT)); } /* * Do a synchronous read. Used to read responses to control messages. */ int scanjet_ctl_read(ss, buf, size, flags) struct ss_softc *ss; char *buf; u_int size; int flags; { struct scsi_rw_scanner cmd; bzero(&cmd, sizeof(cmd)); cmd.opcode = READ; _lto3b(size, cmd.len); return (scsi_scsi_cmd(ss->sc_link, (struct scsi_generic *) &cmd, sizeof(cmd), (u_char *) buf, size, 0, 100000, NULL, flags | SCSI_DATA_IN)); } #ifdef SCANJETDEBUG static void show_es(char *es) { char *p = es; while (*p) { if (*p == '\033') printf("[Esc]"); else printf("%c", *p); ++p; } printf("\n"); } #endif /* * simulate SCSI_SET_WINDOW for ScanJets */ int scanjet_set_window(ss, flags) struct ss_softc *ss; int flags; { char escape_codes[128], *p; p = escape_codes; p += sprintf(p, "\033*f%ldP", ss->sio.scan_width / 4); p += sprintf(p, "\033*f%ldQ", ss->sio.scan_height / 4); p += sprintf(p, "\033*f%ldX", ss->sio.scan_x_origin / 4); p += sprintf(p, "\033*f%ldY", ss->sio.scan_y_origin / 4); p += sprintf(p, "\033*a%dR", ss->sio.scan_x_resolution); p += sprintf(p, "\033*a%dS", ss->sio.scan_y_resolution); switch (ss->sio.scan_image_mode) { case SIM_BINARY_MONOCHROME: ss->sio.scan_bits_per_pixel = 1; /* use "line art" mode */ strcpy(p, "\033*a0T"); p += strlen(p); /* make image data be "min-is-white ala PBM */ strcpy(p, "\033*a0I"); p += strlen(p); break; case SIM_DITHERED_MONOCHROME: ss->sio.scan_bits_per_pixel = 1; /* use dithered mode */ strcpy(p, "\033*a3T"); p += strlen(p); /* make image data be "min-is-white ala PBM */ strcpy(p, "\033*a0I"); p += strlen(p); break; case SIM_GRAYSCALE: ss->sio.scan_bits_per_pixel = 8; /* use grayscale mode */ strcpy(p, "\033*a4T"); p += strlen(p); /* make image data be "min-is-black ala PGM */ strcpy(p, "\033*a1I"); p += strlen(p); break; case SIM_COLOR: ss->sio.scan_bits_per_pixel = 24; /* use RGB color mode */ strcpy(p, "\033*a5T"); p += strlen(p); /* make image data be "min-is-black ala PPM */ strcpy(p, "\033*a1I"); p += strlen(p); /* use pass-through matrix (disable NTSC) */ strcpy(p, "\033*u2T"); p += strlen(p); break; } p += sprintf(p, "\033*a%dG", ss->sio.scan_bits_per_pixel); p += sprintf(p, "\033*a%dL", (int)(ss->sio.scan_brightness) - 128); p += sprintf(p, "\033*a%dK", (int)(ss->sio.scan_contrast) - 128); return (scanjet_ctl_write(ss, escape_codes, p - escape_codes, flags)); } /* atoi() and strchr() are from /sys/arch/amiga/dev/ite.c and are only used in scanjet_compute_sizes */ __inline static int atoi(cp) const char *cp; { int n; for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++) n = n * 10 + *cp - '0'; return (n); } __inline static char * strchr(cp, ch) /* * The const was removed to make -Wcast-qual happy. I * don't particularily like this solution but what to do? */ /* const */ char *cp; char ch; { while (*cp && *cp != ch) cp++; return (*cp ? (char *)cp : 0); } int scanjet_compute_sizes(ss, flags) struct ss_softc *ss; int flags; { int error; static char *wfail = "%s: interrogate write failed\n"; static char *rfail = "%s: interrogate read failed\n"; static char *dfail = "%s: bad data returned\n"; char escape_codes[20]; char response[20]; char *p; /* * Deal with the fact that the HP ScanJet IIc uses 1/300" not 1/1200" * as its base unit of measurement. PINT uses 1/1200" (yes I know * ScanJet II's use decipoints as well but 1200 % 720 != 0) */ ss->sio.scan_width = (ss->sio.scan_width + 3) & 0xfffffffc; ss->sio.scan_height = (ss->sio.scan_height + 3) & 0xfffffffc; switch (ss->sio.scan_image_mode) { case SIM_BINARY_MONOCHROME: case SIM_DITHERED_MONOCHROME: strcpy(escape_codes, "\033*s1025E"); /* bytes wide */ break; case SIM_GRAYSCALE: case SIM_COLOR: strcpy(escape_codes, "\033*s1024E"); /* pixels wide */ break; } error = scanjet_ctl_write(ss, escape_codes, strlen(escape_codes), flags); if (error) { uprintf(wfail, ss->sc_dev.dv_xname); return (error); } error = scanjet_ctl_read(ss, response, 20, flags); if (error) { uprintf(rfail, ss->sc_dev.dv_xname); return (error); } p = strchr(response, 'd'); if (p == 0) { uprintf(dfail, ss->sc_dev.dv_xname); return (EIO); } ss->sio.scan_pixels_per_line = atoi(p + 1); if (ss->sio.scan_image_mode < SIM_GRAYSCALE) ss->sio.scan_pixels_per_line *= 8; strcpy(escape_codes, "\033*s1026E"); /* pixels high */ error = scanjet_ctl_write(ss, escape_codes, strlen(escape_codes), flags); if (error) { uprintf(wfail, ss->sc_dev.dv_xname); return (error); } error = scanjet_ctl_read(ss, response, 20, flags); if (error) { uprintf(rfail, ss->sc_dev.dv_xname); return (error); } p = strchr(response, 'd'); if (p == 0) { uprintf(dfail, ss->sc_dev.dv_xname); return (EIO); } ss->sio.scan_lines = atoi(p + 1); ss->sio.scan_window_size = ss->sio.scan_lines * ((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8); return (0); }