420 lines
10 KiB
C
420 lines
10 KiB
C
/* $NetBSD: ss_scanjet.c,v 1.3 1996/03/30 21:47:07 christos Exp $ */
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/*
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* Copyright (c) 1995 Kenneth Stailey. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Kenneth Stailey.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* special functions for the HP ScanJet IIc and IIcx
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/fcntl.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/device.h>
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#include <sys/conf.h> /* for cdevsw */
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#include <sys/scanio.h>
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#include <scsi/scsi_all.h>
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#include <scsi/scsi_scanner.h>
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#include <scsi/scsiconf.h>
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#include <scsi/ssvar.h>
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#define SCANJET_RETRIES 4
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int scanjet_get_params __P((struct ss_softc *));
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int scanjet_set_params __P((struct ss_softc *, struct scan_io *));
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int scanjet_trigger_scanner __P((struct ss_softc *));
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int scanjet_read __P((struct ss_softc *, struct buf *));
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/* only used internally */
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int scanjet_write __P((struct ss_softc *ss, char *buf, u_int size, int flags));
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int scanjet_set_window __P((struct ss_softc *ss));
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void scanjet_compute_sizes __P((struct ss_softc *));
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/*
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* structure for the special handlers
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*/
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struct ss_special scanjet_special = {
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scanjet_set_params,
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scanjet_trigger_scanner,
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scanjet_get_params,
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NULL, /* no special minphys */
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scanjet_read, /* scsi 6-byte read */
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NULL, /* no "rewind" code (yet?) */
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NULL, /* no adf support right now */
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NULL /* no adf support right now */
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};
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/*
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* scanjet_attach: attach special functions to ss
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*/
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void
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scanjet_attach(ss, sa)
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struct ss_softc *ss;
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struct scsibus_attach_args *sa;
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{
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#ifdef SCSIDEBUG
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struct scsi_link *sc_link = sa->sa_sc_link;
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#endif
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SC_DEBUG(sc_link, SDEV_DB1, ("scanjet_attach: start\n"));
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ss->sio.scan_scanner_type = 0;
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printf("\n%s: ", ss->sc_dev.dv_xname);
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/* first, check the model (which determines nothing yet) */
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if (!bcmp(sa->sa_inqbuf->product, "C1750A", 6)) {
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ss->sio.scan_scanner_type = HP_SCANJET_IIC;
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printf("HP ScanJet IIc\n");
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}
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if (!bcmp(sa->sa_inqbuf->product, "C2500A", 6)) {
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ss->sio.scan_scanner_type = HP_SCANJET_IIC;
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printf("HP ScanJet IIcx\n");
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}
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SC_DEBUG(sc_link, SDEV_DB1, ("scanjet_attach: scanner_type = %d\n",
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ss->sio.scan_scanner_type));
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/* now install special handlers */
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ss->special = &scanjet_special;
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/*
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* populate the scanio struct with legal values
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*/
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ss->sio.scan_width = 1200;
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ss->sio.scan_height = 1200;
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ss->sio.scan_x_resolution = 100;
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ss->sio.scan_y_resolution = 100;
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ss->sio.scan_x_origin = 0;
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ss->sio.scan_y_origin = 0;
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ss->sio.scan_brightness = 128;
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ss->sio.scan_contrast = 128;
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ss->sio.scan_quality = 100;
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ss->sio.scan_image_mode = SIM_GRAYSCALE;
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scanjet_compute_sizes(ss);
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}
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int
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scanjet_get_params(ss)
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struct ss_softc *ss;
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{
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return (0);
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}
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/*
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* check the parameters if the scanjet is capable of fulfilling it
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* but don't send the command to the scanner in case the user wants
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* to change parameters by more than one call
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*/
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int
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scanjet_set_params(ss, sio)
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struct ss_softc *ss;
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struct scan_io *sio;
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{
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#if 0
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int error;
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/*
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* if the scanner is triggered, then rewind it
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*/
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if (ss->flags & SSF_TRIGGERED) {
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error = scanjet_rewind_scanner(ss);
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if (error)
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return (error);
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}
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#endif
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/* size constraints... */
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if (sio->scan_width == 0 ||
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sio->scan_x_origin + sio->scan_width > 10200 || /* 8.5" */
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sio->scan_height == 0 ||
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sio->scan_y_origin + sio->scan_height > 16800) /* 14" */
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return (EINVAL);
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/* resolution (dpi)... */
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if (sio->scan_x_resolution < 100 ||
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sio->scan_x_resolution > 400 ||
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sio->scan_y_resolution < 100 ||
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sio->scan_y_resolution > 400)
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return (EINVAL);
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switch (sio->scan_image_mode) {
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case SIM_BINARY_MONOCHROME:
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case SIM_DITHERED_MONOCHROME:
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case SIM_GRAYSCALE:
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case SIM_COLOR:
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break;
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default:
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return (EINVAL);
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}
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/* change ss_softc to the new values, but save ro-variables */
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sio->scan_scanner_type = ss->sio.scan_scanner_type;
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bcopy(sio, &ss->sio, sizeof(struct scan_io));
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scanjet_compute_sizes(ss);
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return (0);
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}
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/*
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* trigger the scanner to start a scan operation
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* this includes sending the mode- and window-data,
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* and starting the scanner
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*/
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int
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scanjet_trigger_scanner(ss)
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struct ss_softc *ss;
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{
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char escape_codes[20];
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#ifdef SCSIDEBUG
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struct scsi_link *sc_link = ss->sc_link;
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#endif
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int error;
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scanjet_compute_sizes(ss);
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/* send parameters */
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error = scanjet_set_window(ss);
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if (error) {
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uprintf("set window failed\n");
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return (error);
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}
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/* send "trigger" operation */
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strcpy(escape_codes, "\033*f0S");
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error = scanjet_write(ss, escape_codes, strlen(escape_codes), 0);
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if (error) {
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uprintf("trigger failed\n");
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return (error);
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}
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return (0);
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}
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int
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scanjet_read(ss, bp)
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struct ss_softc *ss;
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struct buf *bp;
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{
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struct scsi_rw_scanner cmd;
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struct scsi_link *sc_link = ss->sc_link;
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/*
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* Fill out the scsi command
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*/
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bzero(&cmd, sizeof(cmd));
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cmd.opcode = READ;
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/*
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* Handle "fixed-block-mode" tape drives by using the
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* block count instead of the length.
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*/
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_lto3b(bp->b_bcount, cmd.len);
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/*
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* go ask the adapter to do all this for us
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*/
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if (scsi_scsi_cmd(sc_link, (struct scsi_generic *) &cmd, sizeof(cmd),
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(u_char *) bp->b_data, bp->b_bcount, SCANJET_RETRIES, 100000, bp,
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SCSI_NOSLEEP | SCSI_DATA_IN) != SUCCESSFULLY_QUEUED)
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printf("%s: not queued\n", ss->sc_dev.dv_xname);
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else {
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ss->sio.scan_window_size -= bp->b_bcount;
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if (ss->sio.scan_window_size < 0)
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ss->sio.scan_window_size = 0;
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}
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return (0);
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}
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/*
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* Do a synchronous write. Used to send control messages.
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*/
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int
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scanjet_write(ss, buf, size, flags)
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struct ss_softc *ss;
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char *buf;
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u_int size;
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int flags;
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{
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struct scsi_rw_scanner cmd;
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/*
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* If it's a null transfer, return immediatly
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*/
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if (size == 0)
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return (0);
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bzero(&cmd, sizeof(cmd));
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cmd.opcode = WRITE;
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_lto3b(size, cmd.len);
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return (scsi_scsi_cmd(ss->sc_link, (struct scsi_generic *) &cmd,
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sizeof(cmd), (u_char *) buf, size, 0, 100000, NULL,
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flags | SCSI_DATA_OUT));
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}
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#ifdef SCANJETDEBUG
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static void show_es(char *es)
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{
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char *p = es;
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while (*p) {
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if (*p == '\033')
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printf("[Esc]");
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else
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printf("%c", *p);
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++p;
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}
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printf("\n");
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}
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#endif
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/*
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* simulate SCSI_SET_WINDOW for ScanJets
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*/
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int
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scanjet_set_window(ss)
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struct ss_softc *ss;
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{
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char escape_codes[128], *p;
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p = escape_codes;
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sprintf(p, "\033*f%ldP", ss->sio.scan_width / 4);
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p += strlen(p);
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sprintf(p, "\033*f%ldQ", ss->sio.scan_height / 4);
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p += strlen(p);
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sprintf(p, "\033*f%ldX", ss->sio.scan_x_origin / 4);
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p += strlen(p);
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sprintf(p, "\033*f%ldY", ss->sio.scan_y_origin / 4);
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p += strlen(p);
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sprintf(p, "\033*a%dR", ss->sio.scan_x_resolution);
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p += strlen(p);
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sprintf(p, "\033*a%dS", ss->sio.scan_y_resolution);
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p += strlen(p);
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switch (ss->sio.scan_image_mode) {
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case SIM_BINARY_MONOCHROME:
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/* use "line art" mode */
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strcpy(p, "\033*a0T");
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p += strlen(p);
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/* make image data be "min-is-white ala PBM */
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strcpy(p, "\033*a0I");
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p += strlen(p);
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break;
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case SIM_DITHERED_MONOCHROME:
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/* use dithered mode */
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strcpy(p, "\033*a3T");
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p += strlen(p);
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/* make image data be "min-is-white ala PBM */
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strcpy(p, "\033*a0I");
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p += strlen(p);
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break;
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case SIM_GRAYSCALE:
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/* use grayscale mode */
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strcpy(p, "\033*a4T");
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p += strlen(p);
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/* make image data be "min-is-black ala PGM */
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strcpy(p, "\033*a1I");
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p += strlen(p);
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break;
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case SIM_COLOR:
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/* use RGB color mode */
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strcpy(p, "\033*a5T");
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p += strlen(p);
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/* make image data be "min-is-black ala PPM */
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strcpy(p, "\033*a1I");
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p += strlen(p);
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/* use pass-through matrix (disable NTSC) */
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strcpy(p, "\033*u2T");
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p += strlen(p);
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}
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sprintf(p, "\033*a%dG", ss->sio.scan_bits_per_pixel);
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p += strlen(p);
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sprintf(p, "\033*a%dL", (int)(ss->sio.scan_brightness) - 128);
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p += strlen(p);
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sprintf(p, "\033*a%dK", (int)(ss->sio.scan_contrast) - 128);
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p += strlen(p);
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return (scanjet_write(ss, escape_codes, p - escape_codes, 0));
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}
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void
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scanjet_compute_sizes(ss)
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struct ss_softc *ss;
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{
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int r = 0; /* round up by r 1/1200" */
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/*
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* Deal with the fact that the HP ScanJet IIc uses 1/300" not 1/1200"
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* as its base unit of measurement. PINT uses 1/1200" (yes I know
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* ScanJet II's use decipoints as well but 1200 % 720 != 0)
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*/
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ss->sio.scan_width = (ss->sio.scan_width + 3) & 0xfffffffc;
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ss->sio.scan_height = (ss->sio.scan_height + 3) & 0xfffffffc;
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switch (ss->sio.scan_image_mode) {
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case SIM_BINARY_MONOCHROME:
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case SIM_DITHERED_MONOCHROME:
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ss->sio.scan_bits_per_pixel = 1;
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break;
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case SIM_GRAYSCALE:
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r = 600;
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ss->sio.scan_bits_per_pixel = 8;
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break;
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case SIM_COLOR:
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r = 600;
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ss->sio.scan_bits_per_pixel = 24;
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break;
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}
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ss->sio.scan_pixels_per_line =
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(ss->sio.scan_width * ss->sio.scan_x_resolution + r) / 1200;
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if (ss->sio.scan_bits_per_pixel == 1)
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/* pad to byte boundary: */
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ss->sio.scan_pixels_per_line =
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(ss->sio.scan_pixels_per_line + 7) & 0xfffffff8;
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ss->sio.scan_lines =
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(ss->sio.scan_height * ss->sio.scan_y_resolution + r) / 1200;
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ss->sio.scan_window_size = ss->sio.scan_lines *
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((ss->sio.scan_pixels_per_line * ss->sio.scan_bits_per_pixel) / 8);
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}
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