kopia lustrzana https://gitlab.com/sane-project/backends
1983 wiersze
51 KiB
C
1983 wiersze
51 KiB
C
/* sane - Scanner Access Now Easy.
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Copyright (C) 2002 Frank Zago (fzago at greshamstorage com)
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Copyright (C) 2002 Other SANE contributors
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This file is part of the SANE package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, the authors of SANE give permission for
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additional uses of the libraries contained in this release of SANE.
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The exception is that, if you link a SANE library with other files
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to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public
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License. Your use of that executable is in no way restricted on
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account of linking the SANE library code into it.
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This exception does not, however, invalidate any other reasons why
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the executable file might be covered by the GNU General Public
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License.
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If you submit changes to SANE to the maintainers to be included in
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a subsequent release, you agree by submitting the changes that
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those changes may be distributed with this exception intact.
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If you write modifications of your own for SANE, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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*/
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/*
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$Id$
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Sceptre S1200 SCSI scanner (sometimes also called S120)
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*/
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/*--------------------------------------------------------------------------*/
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#define BUILD 7 /* 2002-03-02 */
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#define BACKEND_NAME sceptre
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#define SCEPTRE_CONFIG_FILE "sceptre.conf"
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/*--------------------------------------------------------------------------*/
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#include "../include/sane/config.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "../include/sane/sane.h"
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#include "../include/sane/sanei.h"
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#include "../include/sane/saneopts.h"
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#include "../include/sane/sanei_scsi.h"
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#include "../include/sane/sanei_debug.h"
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#include "../include/sane/sanei_backend.h"
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#include "../include/sane/sanei_config.h"
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#include "../include/lassert.h"
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#include "sceptre.h"
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/*--------------------------------------------------------------------------*/
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static const SANE_String scan_mode_list[] = { LINEART_STR, HALFTONE_STR,
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GRAY_STR, COLOR_STR, NULL
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};
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static const SANE_Range gamma_range = {
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0, /* minimum */
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255, /* maximum */
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0 /* quantization */
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};
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static const SANE_Range threshold_range = {
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0, /* minimum */
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255, /* maximum */
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0 /* quantization */
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};
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static const SANE_Range halftone_range = {
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1, /* minimum */
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4, /* maximum */
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0 /* quantization */
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};
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/*--------------------------------------------------------------------------*/
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#define NUM_OF_RES 15
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/* Table of supported resolution and number of lines of color shifting. */
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static const SANE_Word resolutions_list[NUM_OF_RES + 1] = {
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NUM_OF_RES, 10, 25, 30, 45, 75, 90, 150, 300, 450, 600, 750, 900, 1050,
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1125, 1200
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};
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static const SANE_Word color_shift_list[NUM_OF_RES + 1] = {
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NUM_OF_RES, 0, 0, 0, 0, 1, 1, 2, 0, 6, 8, 10, 12, 14, 15, 16
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};
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/*--------------------------------------------------------------------------*/
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/* List of scanner attached. */
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static Sceptre_Scanner *first_dev = NULL;
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static int num_devices = 0;
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static const SANE_Device **devlist = NULL;
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/* Local functions. */
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/* Display a buffer in the log. */
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static void
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hexdump (int level, char *comment, unsigned char *p, int l)
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{
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int i;
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char line[128];
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char *ptr;
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DBG (level, "%s\n", comment);
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ptr = line;
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for (i = 0; i < l; i++, p++)
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{
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if ((i % 16) == 0)
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{
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if (ptr != line)
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{
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*ptr = '\0';
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DBG (level, "%s\n", line);
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ptr = line;
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}
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sprintf (ptr, "%3.3d:", i);
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ptr += 4;
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}
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sprintf (ptr, " %2.2x", *p);
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ptr += 3;
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}
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*ptr = '\0';
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DBG (level, "%s\n", line);
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}
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/* Initialize a scanner entry. Return an allocated scanner with some
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* preset values. */
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static Sceptre_Scanner *
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sceptre_init (void)
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{
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Sceptre_Scanner *dev;
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DBG (DBG_proc, "sceptre_init: enter\n");
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/* Allocate a new scanner entry. */
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dev = malloc (sizeof (Sceptre_Scanner));
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if (dev == NULL)
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{
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return NULL;
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}
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memset (dev, 0, sizeof (Sceptre_Scanner));
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/* Allocate the buffer used to transfer the SCSI data. */
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dev->buffer_size = 64 * 1024;
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dev->buffer = malloc (dev->buffer_size);
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if (dev->buffer == NULL)
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{
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free (dev);
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return NULL;
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}
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dev->sfd = -1;
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DBG (DBG_proc, "sceptre_init: exit\n");
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return (dev);
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}
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/* Closes an open scanner. */
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static void
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sceptre_close (Sceptre_Scanner * dev)
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{
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DBG (DBG_proc, "sceptre_close: enter\n");
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if (dev->sfd != -1)
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{
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sanei_scsi_close (dev->sfd);
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dev->sfd = -1;
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}
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DBG (DBG_proc, "sceptre_close: exit\n");
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}
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/* Frees the memory used by a scanner. */
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static void
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sceptre_free (Sceptre_Scanner * dev)
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{
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DBG (DBG_proc, "sceptre_free: enter\n");
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if (dev == NULL)
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return;
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sceptre_close (dev);
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if (dev->devicename)
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free (dev->devicename);
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if (dev->buffer)
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free (dev->buffer);
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if (dev->image == NULL)
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{
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free (dev->image);
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}
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free (dev);
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DBG (DBG_proc, "sceptre_free: exit\n");
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}
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/* Inquiry a device and returns TRUE if is supported. */
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static int
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sceptre_identify_scanner (Sceptre_Scanner * dev)
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{
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CDB cdb;
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SANE_Status status;
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size_t size;
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DBG (DBG_proc, "sceptre_identify_scanner: enter\n");
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size = 36;
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MKSCSI_INQUIRY (cdb, size);
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status = sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, dev->buffer, &size);
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if (status)
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{
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DBG (DBG_error,
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"sceptre_identify_scanner: inquiry failed with status %s\n",
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sane_strstatus (status));
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return (SANE_FALSE);
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}
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if (size < 36)
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{
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DBG (DBG_error,
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"sceptre_identify_scanner: not enough data to identify device\n");
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return (SANE_FALSE);
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}
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dev->scsi_type = dev->buffer[0] & 0x1f;
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strncpy (dev->scsi_vendor, dev->buffer + 0x08, 0x08);
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dev->scsi_vendor[0x08] = 0;
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strncpy (dev->scsi_product, dev->buffer + 0x10, 0x010);
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dev->scsi_product[0x10] = 0;
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strncpy (dev->scsi_version, dev->buffer + 0x20, 0x04);
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dev->scsi_version[0x04] = 0;
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DBG (DBG_info, "device is \"%s\" \"%s\" \"%s\"\n",
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dev->scsi_vendor, dev->scsi_product, dev->scsi_version);
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if (dev->scsi_type == 6 &&
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strcmp (dev->scsi_vendor, "KINPO ") == 0 &&
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strcmp (dev->scsi_product, "Vividscan S120 ") == 0)
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{
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DBG (DBG_info, "sceptre_identify_scanner: found a supported scanner\n");
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return (SANE_TRUE);
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}
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DBG (DBG_proc, "sceptre_identify_scanner: exit\n");
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return (SANE_FALSE);
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}
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/* Return the number of bytes left to read. */
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static SANE_Status
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sceptre_get_status (Sceptre_Scanner * dev, size_t * data_left)
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{
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size_t size;
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CDB cdb;
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SANE_Status status;
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DBG (DBG_proc, "sceptre_get_status: enter\n");
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/* Get status. */
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size = 0x10;
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MKSCSI_GET_DATA_BUFFER_STATUS (cdb, 1, size);
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status = sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, dev->buffer, &size);
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if (status != SANE_STATUS_GOOD)
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{
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DBG (DBG_error, "sceptre_get_status: cannot get buffer status\n");
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*data_left = 0;
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return (SANE_STATUS_IO_ERROR);
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}
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assert (size == 16);
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/* Read the size left. The scanner returns the rest of the
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* bytes to read, not just what's in its buffers. */
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*data_left =
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(dev->buffer[8] << 24) |
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(dev->buffer[9] << 16) | (dev->buffer[10] << 8) | (dev->buffer[11] << 0);
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assert (dev->params.lines <= ((dev->buffer[12] << 8) | dev->buffer[13]));
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assert (dev->params.pixels_per_line ==
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((dev->buffer[14] << 8) | dev->buffer[15]));
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if (dev->raster_real == 0)
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{
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dev->raster_real = ((dev->buffer[12] << 8) | dev->buffer[13]) * 3;
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}
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DBG (DBG_proc, "sceptre_get_status: exit, data_left=%ld\n",
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(long) *data_left);
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return (SANE_STATUS_GOOD);
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}
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/* Read some bytes from the scanner. */
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static SANE_Status
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sceptre_read (Sceptre_Scanner * dev, SANE_Byte * buf, size_t * size)
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{
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CDB cdb;
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SANE_Status status;
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size_t to_read;
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size_t total_read;
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DBG (DBG_proc, "sceptre_read: enter\n");
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assert (*size != 0); /* error in the caller */
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assert (*size % dev->params.bytes_per_line == 0);
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total_read = 0;
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while ((to_read = *size - total_read))
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{
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/* Limit the size to read in one shot because, under linux,
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* either the scanner or the sg driver cannot handle it. */
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if (to_read > 64 * 1024)
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to_read = 64 * 1024;
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to_read = to_read - (to_read % dev->params.bytes_per_line);
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MKSCSI_SCSI_READ_10 (cdb, 0, 0, to_read);
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status = sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, buf, &to_read);
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if (status != SANE_STATUS_GOOD)
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{
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DBG (DBG_error, "sceptre_read: cannot read from the scanner\n");
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*size = total_read;
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return (SANE_STATUS_IO_ERROR);
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}
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total_read += to_read;
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buf += to_read;
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}
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DBG (DBG_proc, "sceptre_read: exit, %d bytes read\n", *size);
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*size = total_read;
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return (SANE_STATUS_GOOD);
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}
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/*
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* Adjust the rasters. This function is used during a color scan,
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* because the scanner does not present a format sane can interpret
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* directly.
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*
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* The scanner sends the colors by rasters (R then G then B), whereas
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* sane is waiting for a group of 3 bytes per color. To make things
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* funnier, the rasters are shifted. This shift factor depends on the
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* resolution used. The format of those raster is:
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* R...R RG...RG RGB...RGB BG...GB B...B
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*
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* So this function reorders all that mess. It gets the input from
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* dev->buffer and write the output in dev->image. size_in the the
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* length of the valid data in dev->buffer.
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*/
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static SANE_Status
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sceptre_adjust_raster (Sceptre_Scanner * dev, size_t size_in)
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{
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int nb_rasters; /* number of rasters in dev->buffer */
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int raster; /* current raster number in buffer */
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int line; /* line number for that raster */
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int colour; /* colour for that raster */
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size_t offset;
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assert (dev->scan_mode == SCEPTRE_COLOR);
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assert ((size_in % dev->params.bytes_per_line) == 0);
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if (size_in == 0)
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{
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return SANE_STATUS_GOOD;
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}
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/*
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* The color coding is one line for each color (in the RGB order).
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* Recombine that stuff to create a RGB value for each pixel.
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*/
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nb_rasters = size_in / dev->raster_size;
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for (raster = 0; raster < nb_rasters; raster++)
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{
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/*
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* Find the color to which this raster belongs to.
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* 0 = red
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* 1 = green
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* 2 = blue
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*
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* When blue comes, it always finishes the current line;
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*/
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line = 0;
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if (dev->raster_num < dev->color_shift)
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{
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colour = 0; /* Red */
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line = dev->raster_num;
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}
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else if (dev->raster_num < (3 * dev->color_shift))
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{
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/* even = red, odd = green */
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colour = (dev->raster_num - dev->color_shift) % 2;
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if (colour)
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{
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/* Green */
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line = (dev->raster_num - dev->color_shift) / 2;
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}
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else
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{
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/* Red */
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line = (dev->raster_num + dev->color_shift) / 2;
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}
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}
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else if (dev->raster_num >= dev->raster_real - dev->color_shift)
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{
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/* Blue */
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colour = 2;
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line = dev->line;
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}
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else if (dev->raster_num >= dev->raster_real - 3 * dev->color_shift)
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{
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/* Green or Blue */
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colour =
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(dev->raster_real - dev->raster_num - dev->color_shift) % 2 + 1;
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if (colour == 1)
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{
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/* Green */
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line = dev->line + dev->color_shift;
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}
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else
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{
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/* Blue */
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line = dev->line;
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}
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}
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else
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{
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colour = (dev->raster_num - 3 * dev->color_shift) % 3;
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switch (colour)
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{
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case 0:
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/* Red */
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line = (dev->raster_num + 3 * dev->color_shift) / 3;
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break;
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case 1:
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/* Green */
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line = dev->raster_num / 3;
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break;
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case 2:
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/* Blue */
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line = (dev->raster_num - 3 * dev->color_shift) / 3;
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break;
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}
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}
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/* Adjust the line number relative to the image. */
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line -= dev->line;
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/* Is there enough room to store that raster? */
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offset = dev->image_end + line * dev->params.bytes_per_line;
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if (offset > (dev->image_size - dev->params.bytes_per_line))
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{
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/* We are going to overflow the image buffer. The
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* begining of it should be free by now, so move
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* the whole thing down, and readjust. */
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int sz;
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assert (dev->image_begin > 0);
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/* Copy the complete lines, plus the imcompletes
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* ones. We don't keep the real end of data used
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* in image, so we copy the biggest possible.
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*/
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sz =
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dev->image_end +
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6 * dev->color_shift * dev->params.bytes_per_line -
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dev->image_begin;
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if (dev->image_begin + sz > dev->image_size)
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sz = dev->image_size - dev->image_begin;
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memmove (dev->image, dev->image + dev->image_begin, sz);
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dev->image_end = dev->image_end - dev->image_begin;
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dev->image_begin = 0;
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/* Re-compute offset with the new values */
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offset = dev->image_end + line * dev->params.bytes_per_line;
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}
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assert (offset <= (dev->image_size - dev->raster_size));
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/* Copy the raster to the temporary image. */
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{
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int i;
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unsigned char *src = dev->buffer + raster * dev->raster_size;
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unsigned char *dest = dev->image + offset + colour;
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for (i = 0; i < dev->raster_size; i++)
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{
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*dest = *src;
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src++;
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dest += 3;
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}
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}
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if (colour == 2)
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|
{
|
|
/* This blue raster completes a new line */
|
|
dev->line++;
|
|
dev->image_end += dev->params.bytes_per_line;
|
|
}
|
|
|
|
dev->raster_num++;
|
|
}
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* SCSI sense handler. Callback for SANE.
|
|
*
|
|
* Since this scanner does not have REQUEST SENSE, it is always an
|
|
* error if this function is called.*/
|
|
static SANE_Status
|
|
sceptre_sense_handler (int scsi_fd, unsigned char *result, void *arg)
|
|
{
|
|
DBG (DBG_proc, "sceptre_sense_handler (scsi_fd = %d)\n", scsi_fd);
|
|
|
|
result = result; /* silence gcc */
|
|
arg = arg; /* silence gcc */
|
|
|
|
return SANE_STATUS_IO_ERROR;
|
|
}
|
|
|
|
/* Attach a scanner to this backend. */
|
|
static SANE_Status
|
|
attach_scanner (const char *devicename, Sceptre_Scanner ** devp)
|
|
{
|
|
Sceptre_Scanner *dev;
|
|
int sfd;
|
|
|
|
DBG (DBG_sane_proc, "attach_scanner: %s\n", devicename);
|
|
|
|
if (devp)
|
|
*devp = NULL;
|
|
|
|
/* Check if we know this device name. */
|
|
for (dev = first_dev; dev; dev = dev->next)
|
|
{
|
|
if (strcmp (dev->sane.name, devicename) == 0)
|
|
{
|
|
if (devp)
|
|
{
|
|
*devp = dev;
|
|
}
|
|
DBG (DBG_info, "device is already known\n");
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
}
|
|
|
|
/* Allocate a new scanner entry. */
|
|
dev = sceptre_init ();
|
|
if (dev == NULL)
|
|
{
|
|
DBG (DBG_error, "ERROR: not enough memory\n");
|
|
return SANE_STATUS_NO_MEM;
|
|
}
|
|
|
|
DBG (DBG_info, "attach_scanner: opening %s\n", devicename);
|
|
|
|
if (sanei_scsi_open (devicename, &sfd, sceptre_sense_handler, dev) != 0)
|
|
{
|
|
DBG (DBG_error, "ERROR: attach_scanner: open failed\n");
|
|
sceptre_free (dev);
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
/* Fill some scanner specific values. */
|
|
dev->devicename = strdup (devicename);
|
|
dev->sfd = sfd;
|
|
|
|
/* Now, check that it is a scanner we support. */
|
|
if (sceptre_identify_scanner (dev) == SANE_FALSE)
|
|
{
|
|
DBG (DBG_error,
|
|
"ERROR: attach_scanner: scanner-identification failed\n");
|
|
sceptre_free (dev);
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
sceptre_close (dev);
|
|
|
|
/* Set the default options for that scanner. */
|
|
dev->sane.name = dev->devicename;
|
|
dev->sane.vendor = dev->scsi_vendor;
|
|
dev->sane.model = dev->scsi_product;
|
|
dev->sane.type = SANE_I18N ("flatbed scanner");
|
|
|
|
dev->resolution_range.min = SANE_FIX (50);
|
|
dev->resolution_range.max = SANE_FIX (1200);
|
|
dev->resolution_range.quant = SANE_FIX (1);
|
|
|
|
/*
|
|
* The S1200 has an area of 8.5 inches / 11.7 inches. (A4 like)
|
|
* That's roughly 215*297 mm
|
|
* The values are coded by
|
|
* size in inch * 600 dpi.
|
|
* The maximums are:
|
|
* X: 8.5 inches * 600 = 5100 dots
|
|
* Y: 11.7 inches * 600 = 7020
|
|
* (although the windows driver stops at 7019)
|
|
*
|
|
* The values are stored in mm. Inches sucks anyway.
|
|
* X: 5078 dots (22 dots lost)
|
|
* Y: 7015 dots (5 dots lost)
|
|
*
|
|
* There seems to be a minimum area, but yet to be determined.
|
|
*/
|
|
dev->x_range.min = SANE_FIX (0);
|
|
dev->x_range.max = SANE_FIX (215.90); /* in mm */
|
|
dev->x_range.quant = 0;
|
|
|
|
dev->y_range.min = SANE_FIX (0);
|
|
dev->y_range.max = SANE_FIX (297.14); /* in mm */
|
|
dev->y_range.quant = SANE_FIX (0);
|
|
|
|
/* Link the scanner with the others. */
|
|
dev->next = first_dev;
|
|
first_dev = dev;
|
|
|
|
if (devp)
|
|
{
|
|
*devp = dev;
|
|
}
|
|
|
|
num_devices++;
|
|
|
|
DBG (DBG_proc, "attach_scanner: exit\n");
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
static SANE_Status
|
|
attach_one (const char *dev)
|
|
{
|
|
attach_scanner (dev, NULL);
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
/* Reset the options for that scanner. */
|
|
static void
|
|
sceptre_init_options (Sceptre_Scanner * dev)
|
|
{
|
|
int i;
|
|
|
|
/* Pre-initialize the options. */
|
|
memset (dev->opt, 0, sizeof (dev->opt));
|
|
memset (dev->val, 0, sizeof (dev->val));
|
|
|
|
for (i = 0; i < NUM_OPTIONS; ++i)
|
|
{
|
|
dev->opt[i].size = sizeof (SANE_Word);
|
|
dev->opt[i].cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
|
|
}
|
|
|
|
/* Number of options. */
|
|
dev->opt[OPT_NUM_OPTS].name = "";
|
|
dev->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
|
|
dev->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS;
|
|
dev->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT;
|
|
dev->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT;
|
|
dev->val[OPT_NUM_OPTS].w = NUM_OPTIONS;
|
|
|
|
/* Mode group */
|
|
dev->opt[OPT_MODE_GROUP].name = "";
|
|
dev->opt[OPT_MODE_GROUP].title = SANE_I18N ("Scan Mode");
|
|
dev->opt[OPT_MODE_GROUP].desc = ""; /* not valid for a group */
|
|
dev->opt[OPT_MODE_GROUP].type = SANE_TYPE_GROUP;
|
|
dev->opt[OPT_MODE_GROUP].cap = 0;
|
|
dev->opt[OPT_MODE_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
|
|
|
|
/* Scanner supported modes */
|
|
dev->opt[OPT_MODE].name = SANE_NAME_SCAN_MODE;
|
|
dev->opt[OPT_MODE].title = SANE_TITLE_SCAN_MODE;
|
|
dev->opt[OPT_MODE].desc = SANE_DESC_SCAN_MODE;
|
|
dev->opt[OPT_MODE].type = SANE_TYPE_STRING;
|
|
dev->opt[OPT_MODE].size = 30; /* should define yet another max_string_size() */
|
|
dev->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
|
|
dev->opt[OPT_MODE].constraint.string_list =
|
|
(SANE_String_Const *) scan_mode_list;
|
|
dev->val[OPT_MODE].s = (SANE_Char *) strdup (scan_mode_list[0]);
|
|
|
|
/* Common resolution */
|
|
dev->opt[OPT_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION;
|
|
dev->opt[OPT_RESOLUTION].title = SANE_TITLE_SCAN_RESOLUTION;
|
|
dev->opt[OPT_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION;
|
|
dev->opt[OPT_RESOLUTION].type = SANE_TYPE_INT;
|
|
dev->opt[OPT_RESOLUTION].unit = SANE_UNIT_DPI;
|
|
dev->opt[OPT_RESOLUTION].constraint_type = SANE_CONSTRAINT_WORD_LIST;
|
|
dev->opt[OPT_RESOLUTION].constraint.word_list = resolutions_list;
|
|
dev->val[OPT_RESOLUTION].w = 150;
|
|
|
|
/* Geometry group */
|
|
dev->opt[OPT_GEOMETRY_GROUP].name = "";
|
|
dev->opt[OPT_GEOMETRY_GROUP].title = SANE_I18N ("Geometry");
|
|
dev->opt[OPT_GEOMETRY_GROUP].desc = ""; /* not valid for a group */
|
|
dev->opt[OPT_GEOMETRY_GROUP].type = SANE_TYPE_GROUP;
|
|
dev->opt[OPT_GEOMETRY_GROUP].cap = SANE_CAP_ADVANCED;
|
|
dev->opt[OPT_GEOMETRY_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
|
|
|
|
/* Upper left X */
|
|
dev->opt[OPT_TL_X].name = SANE_NAME_SCAN_TL_X;
|
|
dev->opt[OPT_TL_X].title = SANE_TITLE_SCAN_TL_X;
|
|
dev->opt[OPT_TL_X].desc = SANE_DESC_SCAN_TL_X;
|
|
dev->opt[OPT_TL_X].type = SANE_TYPE_FIXED;
|
|
dev->opt[OPT_TL_X].unit = SANE_UNIT_MM;
|
|
dev->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_TL_X].constraint.range = &(dev->x_range);
|
|
dev->val[OPT_TL_X].w = dev->x_range.min;
|
|
|
|
/* Upper left Y */
|
|
dev->opt[OPT_TL_Y].name = SANE_NAME_SCAN_TL_Y;
|
|
dev->opt[OPT_TL_Y].title = SANE_TITLE_SCAN_TL_Y;
|
|
dev->opt[OPT_TL_Y].desc = SANE_DESC_SCAN_TL_Y;
|
|
dev->opt[OPT_TL_Y].type = SANE_TYPE_FIXED;
|
|
dev->opt[OPT_TL_Y].unit = SANE_UNIT_MM;
|
|
dev->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_TL_Y].constraint.range = &(dev->y_range);
|
|
dev->val[OPT_TL_Y].w = dev->y_range.min;
|
|
|
|
/* bottom-right x */
|
|
dev->opt[OPT_BR_X].name = SANE_NAME_SCAN_BR_X;
|
|
dev->opt[OPT_BR_X].title = SANE_TITLE_SCAN_BR_X;
|
|
dev->opt[OPT_BR_X].desc = SANE_DESC_SCAN_BR_X;
|
|
dev->opt[OPT_BR_X].type = SANE_TYPE_FIXED;
|
|
dev->opt[OPT_BR_X].unit = SANE_UNIT_MM;
|
|
dev->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_BR_X].constraint.range = &(dev->x_range);
|
|
dev->val[OPT_BR_X].w = dev->x_range.max;
|
|
|
|
/* bottom-right y */
|
|
dev->opt[OPT_BR_Y].name = SANE_NAME_SCAN_BR_Y;
|
|
dev->opt[OPT_BR_Y].title = SANE_TITLE_SCAN_BR_Y;
|
|
dev->opt[OPT_BR_Y].desc = SANE_DESC_SCAN_BR_Y;
|
|
dev->opt[OPT_BR_Y].type = SANE_TYPE_FIXED;
|
|
dev->opt[OPT_BR_Y].unit = SANE_UNIT_MM;
|
|
dev->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_BR_Y].constraint.range = &(dev->y_range);
|
|
dev->val[OPT_BR_Y].w = dev->y_range.max;
|
|
|
|
/* Enhancement group */
|
|
dev->opt[OPT_ENHANCEMENT_GROUP].name = "";
|
|
dev->opt[OPT_ENHANCEMENT_GROUP].title = SANE_I18N ("Enhancement");
|
|
dev->opt[OPT_ENHANCEMENT_GROUP].desc = ""; /* not valid for a group */
|
|
dev->opt[OPT_ENHANCEMENT_GROUP].type = SANE_TYPE_GROUP;
|
|
dev->opt[OPT_ENHANCEMENT_GROUP].cap = 0;
|
|
dev->opt[OPT_ENHANCEMENT_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
|
|
|
|
/* custom-gamma table */
|
|
dev->opt[OPT_CUSTOM_GAMMA].name = SANE_NAME_CUSTOM_GAMMA;
|
|
dev->opt[OPT_CUSTOM_GAMMA].title = SANE_TITLE_CUSTOM_GAMMA;
|
|
dev->opt[OPT_CUSTOM_GAMMA].desc = SANE_DESC_CUSTOM_GAMMA;
|
|
dev->opt[OPT_CUSTOM_GAMMA].type = SANE_TYPE_BOOL;
|
|
dev->opt[OPT_CUSTOM_GAMMA].cap |= SANE_CAP_INACTIVE;
|
|
dev->val[OPT_CUSTOM_GAMMA].w = SANE_FALSE;
|
|
|
|
/* red gamma vector */
|
|
dev->opt[OPT_GAMMA_VECTOR_R].name = SANE_NAME_GAMMA_VECTOR_R;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].title = SANE_TITLE_GAMMA_VECTOR_R;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].desc = SANE_DESC_GAMMA_VECTOR_R;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].type = SANE_TYPE_INT;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].unit = SANE_UNIT_NONE;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].size = GAMMA_LENGTH * sizeof (SANE_Word);
|
|
dev->opt[OPT_GAMMA_VECTOR_R].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].constraint.range = &gamma_range;
|
|
dev->val[OPT_GAMMA_VECTOR_R].wa = dev->gamma_R;
|
|
|
|
/* green gamma vector */
|
|
dev->opt[OPT_GAMMA_VECTOR_G].name = SANE_NAME_GAMMA_VECTOR_G;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].title = SANE_TITLE_GAMMA_VECTOR_G;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].desc = SANE_DESC_GAMMA_VECTOR_G;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].type = SANE_TYPE_INT;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].unit = SANE_UNIT_NONE;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].size = GAMMA_LENGTH * sizeof (SANE_Word);
|
|
dev->opt[OPT_GAMMA_VECTOR_G].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].constraint.range = &gamma_range;
|
|
dev->val[OPT_GAMMA_VECTOR_G].wa = dev->gamma_G;
|
|
|
|
/* blue gamma vector */
|
|
dev->opt[OPT_GAMMA_VECTOR_B].name = SANE_NAME_GAMMA_VECTOR_B;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].title = SANE_TITLE_GAMMA_VECTOR_B;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].desc = SANE_DESC_GAMMA_VECTOR_B;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].type = SANE_TYPE_INT;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].unit = SANE_UNIT_NONE;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].size = GAMMA_LENGTH * sizeof (SANE_Word);
|
|
dev->opt[OPT_GAMMA_VECTOR_B].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].constraint.range = &gamma_range;
|
|
dev->val[OPT_GAMMA_VECTOR_B].wa = dev->gamma_B;
|
|
|
|
/* Threshold */
|
|
dev->opt[OPT_THRESHOLD].name = SANE_NAME_THRESHOLD;
|
|
dev->opt[OPT_THRESHOLD].title = SANE_TITLE_THRESHOLD;
|
|
dev->opt[OPT_THRESHOLD].desc = SANE_DESC_THRESHOLD;
|
|
dev->opt[OPT_THRESHOLD].type = SANE_TYPE_INT;
|
|
dev->opt[OPT_THRESHOLD].unit = SANE_UNIT_NONE;
|
|
dev->opt[OPT_THRESHOLD].size = sizeof (SANE_Int);
|
|
dev->opt[OPT_THRESHOLD].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_THRESHOLD].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_THRESHOLD].constraint.range = &threshold_range;
|
|
dev->val[OPT_THRESHOLD].w = 128;
|
|
|
|
/* Halftone pattern */
|
|
dev->opt[OPT_HALFTONE_PATTERN].name = SANE_NAME_HALFTONE_PATTERN;
|
|
dev->opt[OPT_HALFTONE_PATTERN].title = SANE_TITLE_HALFTONE_PATTERN;
|
|
dev->opt[OPT_HALFTONE_PATTERN].desc = SANE_DESC_HALFTONE_PATTERN;
|
|
dev->opt[OPT_HALFTONE_PATTERN].type = SANE_TYPE_INT;
|
|
dev->opt[OPT_HALFTONE_PATTERN].size = sizeof (SANE_Int);
|
|
dev->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_HALFTONE_PATTERN].constraint_type = SANE_CONSTRAINT_RANGE;
|
|
dev->opt[OPT_HALFTONE_PATTERN].constraint.range = &halftone_range;
|
|
dev->val[OPT_HALFTONE_PATTERN].w = 1;
|
|
|
|
/* preview */
|
|
dev->opt[OPT_PREVIEW].name = SANE_NAME_PREVIEW;
|
|
dev->opt[OPT_PREVIEW].title = SANE_TITLE_PREVIEW;
|
|
dev->opt[OPT_PREVIEW].desc = SANE_DESC_PREVIEW;
|
|
dev->opt[OPT_PREVIEW].type = SANE_TYPE_BOOL;
|
|
dev->opt[OPT_PREVIEW].cap = SANE_CAP_SOFT_DETECT | SANE_CAP_SOFT_SELECT;
|
|
dev->val[OPT_PREVIEW].w = SANE_FALSE;
|
|
|
|
/* Lastly, set the default mode. This might change some values
|
|
* previously set here. */
|
|
sane_control_option (dev, OPT_MODE, SANE_ACTION_SET_VALUE,
|
|
(SANE_String *) COLOR_STR, NULL);
|
|
}
|
|
|
|
/* Wait until the scanner is ready.
|
|
*
|
|
* The only reason I know the scanner is not ready is because it is
|
|
* moving the CCD.
|
|
*/
|
|
static SANE_Status
|
|
sceptre_wait_scanner (Sceptre_Scanner * dev)
|
|
{
|
|
SANE_Status status;
|
|
int timeout;
|
|
CDB cdb;
|
|
size_t size;
|
|
|
|
DBG (DBG_proc, "sceptre_wait_scanner: enter\n");
|
|
|
|
MKSCSI_SCSI_TEST_UNIT_READY (cdb);
|
|
cdb.data[4] = 1; /* returns one byte. Non standard SCSI. */
|
|
|
|
/* Set the timeout to 60 seconds. */
|
|
timeout = 60;
|
|
|
|
while (timeout > 0)
|
|
{
|
|
|
|
/* test unit ready */
|
|
size = 1; /* read one info byte */
|
|
status =
|
|
sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, dev->buffer, &size);
|
|
|
|
if (status != SANE_STATUS_GOOD || size != 1)
|
|
{
|
|
DBG (DBG_error, "sceptre_wait_scanner: TUR failed\n");
|
|
return (SANE_STATUS_IO_ERROR);
|
|
}
|
|
|
|
/* Apparently the scanner returns only 2 values:
|
|
* 0x00 - ready
|
|
* 0xff - not ready
|
|
*/
|
|
if (dev->buffer[0] != 0x00)
|
|
{
|
|
sleep (1); /* wait 1 seconds */
|
|
timeout--;
|
|
}
|
|
else
|
|
{
|
|
return (SANE_STATUS_GOOD);
|
|
}
|
|
};
|
|
|
|
DBG (DBG_proc, "sceptre_wait_scanner: scanner not ready\n");
|
|
return (SANE_STATUS_IO_ERROR);
|
|
}
|
|
|
|
/* Diagnostic the scanner. */
|
|
static SANE_Status
|
|
sceptre_do_diag (Sceptre_Scanner * dev)
|
|
{
|
|
SANE_Status status;
|
|
CDB cdb;
|
|
size_t size;
|
|
|
|
DBG (DBG_proc, "sceptre_receive_diag enter\n");
|
|
|
|
/* SEND DIAGNOSTIC. */
|
|
MKSCSI_SEND_DIAG (cdb, 0);
|
|
|
|
/* The windows driver sets that field. This is non standard. */
|
|
cdb.data[2] = 0x80;
|
|
|
|
status = sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, NULL, NULL);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "sceptre_do_diag: exit, status=%d\n", status);
|
|
return (status);
|
|
}
|
|
|
|
/* RECEIVE DIAGNOSTIC */
|
|
|
|
/* The windows driver ask for 3 byte. This is non standard
|
|
* SCSI. The page returned should be at least 4 bytes. */
|
|
size = 3;
|
|
MKSCSI_SCSI_RECEIVE_DIAG (cdb, 0, size);
|
|
|
|
status = sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, dev->buffer, &size);
|
|
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "sceptre_do_diag: exit, status=%d\n", status);
|
|
return (status);
|
|
}
|
|
|
|
DBG (DBG_proc, "sceptre_receive_diag exit\n");
|
|
|
|
return (status);
|
|
}
|
|
|
|
/* I'm not sure if the command sent is really set mode. The SCSI
|
|
* command used is MODE SELECT, but no data is sent. Again, this is
|
|
* not standard. */
|
|
static SANE_Status
|
|
sceptre_set_mode (Sceptre_Scanner * dev)
|
|
{
|
|
SANE_Status status;
|
|
CDB cdb;
|
|
size_t size;
|
|
|
|
DBG (DBG_proc, "sceptre_set_mode: enter\n");
|
|
|
|
size = 0x18;
|
|
MKSCSI_MODE_SELECT (cdb, 1, 0, size);
|
|
|
|
status = sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, NULL, NULL);
|
|
|
|
DBG (DBG_proc, "sceptre_set_mode: exit, status=%d\n", status);
|
|
|
|
return (status);
|
|
}
|
|
|
|
/* Start a scan. */
|
|
static SANE_Status
|
|
sceptre_scan (Sceptre_Scanner * dev)
|
|
{
|
|
CDB cdb;
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_proc, "sceptre_scan: enter\n");
|
|
|
|
MKSCSI_SCAN (cdb);
|
|
|
|
status = sanei_scsi_cmd (dev->sfd, cdb.data, cdb.len, NULL, NULL);
|
|
|
|
DBG (DBG_proc, "sceptre_scan: exit, status=%d\n", status);
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Set a window. */
|
|
static SANE_Status
|
|
sceptre_set_window (Sceptre_Scanner * dev)
|
|
{
|
|
size_t size;
|
|
CDB cdb;
|
|
struct
|
|
{ /* this sucks a lot */
|
|
char cdb[10];
|
|
unsigned char window[82];
|
|
}
|
|
param;
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_proc, "sceptre_set_window: enter\n");
|
|
|
|
size = sizeof (param.window);
|
|
MKSCSI_SCSI_SET_WINDOW (cdb, size);
|
|
|
|
memcpy (param.cdb, cdb.data, cdb.len);
|
|
memset (param.window, 0, size);
|
|
|
|
/* size of the parameters (74 = 0x4a bytes) */
|
|
param.window[7] = 0x4a;
|
|
|
|
/* X and Y resolution */
|
|
Ito16 (dev->resolution, ¶m.window[10]);
|
|
Ito16 (dev->resolution, ¶m.window[12]);
|
|
|
|
/* Upper Left (X,Y) */
|
|
Ito32 (dev->x_tl, ¶m.window[14]);
|
|
Ito32 (dev->y_tl, ¶m.window[18]);
|
|
|
|
/* Width and length */
|
|
Ito32 (dev->width, ¶m.window[22]);
|
|
Ito32 (dev->length, ¶m.window[26]);
|
|
|
|
/* Image Composition, Halftone and Depth */
|
|
switch (dev->scan_mode)
|
|
{
|
|
case SCEPTRE_LINEART:
|
|
param.window[31] = dev->val[OPT_THRESHOLD].w;
|
|
param.window[33] = 0;
|
|
param.window[34] = 1;
|
|
param.window[36] = 0;
|
|
break;
|
|
case SCEPTRE_HALFTONE:
|
|
param.window[31] = 0x80;
|
|
param.window[33] = 0;
|
|
param.window[34] = 1;
|
|
param.window[36] = dev->val[OPT_HALFTONE_PATTERN].w;
|
|
break;
|
|
case SCEPTRE_GRAYSCALE:
|
|
param.window[31] = 0x80;
|
|
param.window[33] = 2;
|
|
param.window[34] = 8;
|
|
param.window[36] = 0;
|
|
break;
|
|
case SCEPTRE_COLOR:
|
|
param.window[31] = 0x80;
|
|
param.window[33] = 5;
|
|
param.window[34] = 24;
|
|
param.window[36] = 0;
|
|
break;
|
|
}
|
|
|
|
/* Unknown parameters. They look constant in the windows driver. */
|
|
param.window[30] = 0x04;
|
|
param.window[32] = 0x04;
|
|
param.window[37] = 0x80; /* RIF, although it looks unused. */
|
|
|
|
hexdump (DBG_info2, "windows", param.window, 82);
|
|
|
|
status = sanei_scsi_cmd (dev->sfd, ¶m, sizeof (param), NULL, NULL);
|
|
|
|
DBG (DBG_proc, "sceptre_set_window: exit, status=%d\n", status);
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Stop a scan. */
|
|
static SANE_Status
|
|
do_cancel (Sceptre_Scanner * dev)
|
|
{
|
|
DBG (DBG_sane_proc, "do_cancel enter\n");
|
|
|
|
if (dev->scanning == SANE_TRUE)
|
|
{
|
|
|
|
/* Reposition the CCD. */
|
|
dev->x_tl = 0;
|
|
dev->x_tl = 0;
|
|
dev->width = 0;
|
|
dev->length = 0;
|
|
sceptre_set_window (dev);
|
|
sceptre_scan (dev);
|
|
|
|
sceptre_close (dev);
|
|
}
|
|
|
|
dev->scanning = SANE_FALSE;
|
|
|
|
DBG (DBG_sane_proc, "do_cancel exit\n");
|
|
|
|
return SANE_STATUS_CANCELLED;
|
|
}
|
|
|
|
/* Start a scan. */
|
|
static const SANE_Word gamma_init[GAMMA_LENGTH] = {
|
|
0x00, 0x06, 0x0A, 0x0D, 0x10, 0x13, 0x15, 0x17, 0x19, 0x1B, 0x1D, 0x1F,
|
|
0x21, 0x23, 0x25, 0x27,
|
|
0x28, 0x2A, 0x2C, 0x2D, 0x2F, 0x30, 0x32, 0x33, 0x35, 0x36, 0x38, 0x39,
|
|
0x3A, 0x3C, 0x3D, 0x3F,
|
|
0x40, 0x41, 0x43, 0x44, 0x45, 0x46, 0x48, 0x49, 0x4A, 0x4B, 0x4D, 0x4E,
|
|
0x4F, 0x50, 0x51, 0x53,
|
|
0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, 0x60,
|
|
0x61, 0x62, 0x63, 0x64,
|
|
0x65, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
|
|
0x72, 0x73, 0x74, 0x75,
|
|
0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7D, 0x7E, 0x7F, 0x80,
|
|
0x81, 0x82, 0x83, 0x84,
|
|
0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
|
|
0x90, 0x91, 0x92, 0x92,
|
|
0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x99, 0x9A, 0x9B, 0x9C, 0x9D,
|
|
0x9E, 0x9F, 0x9F, 0xA0,
|
|
0xA1, 0xA2, 0xA3, 0xA4, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xA9, 0xAA,
|
|
0xAB, 0xAC, 0xAD, 0xAD,
|
|
0xAE, 0xAF, 0xB0, 0xB1, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB5, 0xB6, 0xB7,
|
|
0xB8, 0xB9, 0xB9, 0xBA,
|
|
0xBB, 0xBC, 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC0, 0xC1, 0xC2, 0xC3, 0xC3,
|
|
0xC4, 0xC5, 0xC6, 0xC6,
|
|
0xC7, 0xC8, 0xC9, 0xC9, 0xCA, 0xCB, 0xCC, 0xCC, 0xCD, 0xCE, 0xCF, 0xCF,
|
|
0xD0, 0xD1, 0xD2, 0xD2,
|
|
0xD3, 0xD4, 0xD5, 0xD5, 0xD6, 0xD7, 0xD7, 0xD8, 0xD9, 0xDA, 0xDA, 0xDB,
|
|
0xDC, 0xDC, 0xDD, 0xDE,
|
|
0xDF, 0xDF, 0xE0, 0xE1, 0xE1, 0xE2, 0xE3, 0xE4, 0xE4, 0xE5, 0xE6, 0xE6,
|
|
0xE7, 0xE8, 0xE8, 0xE9,
|
|
0xEA, 0xEB, 0xEB, 0xEC, 0xED, 0xED, 0xEE, 0xEF, 0xEF, 0xF0, 0xF1, 0xF1,
|
|
0xF2, 0xF3, 0xF4, 0xF4,
|
|
0xF5, 0xF6, 0xF6, 0xF7, 0xF8, 0xF8, 0xF9, 0xFA, 0xFA, 0xFB, 0xFC, 0xFC,
|
|
0xFD, 0xFE, 0xFE, 0xFF
|
|
};
|
|
|
|
static SANE_Status
|
|
sceptre_send_gamma (Sceptre_Scanner * dev)
|
|
{
|
|
CDB cdb;
|
|
int i;
|
|
struct
|
|
{ /* this sucks too */
|
|
unsigned char cdb[10];
|
|
unsigned char gamma_R[GAMMA_LENGTH];
|
|
unsigned char gamma_G[GAMMA_LENGTH];
|
|
unsigned char gamma_B[GAMMA_LENGTH];
|
|
}
|
|
param;
|
|
size_t size;
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_proc, "sceptre_send_gamma: enter\n");
|
|
|
|
size = 0x300;
|
|
MKSCSI_SCSI_SEND_10 (cdb, 0x03, 0x02, size);
|
|
memcpy (param.cdb, cdb.data, cdb.len);
|
|
|
|
if (dev->val[OPT_CUSTOM_GAMMA].w)
|
|
{
|
|
/* Use the custom gamma. */
|
|
for (i = 0; i < GAMMA_LENGTH; i++)
|
|
{
|
|
param.gamma_R[i] = dev->gamma_R[i];
|
|
param.gamma_G[i] = dev->gamma_G[i];
|
|
param.gamma_B[i] = dev->gamma_B[i];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < GAMMA_LENGTH; i++)
|
|
{
|
|
param.gamma_R[i] = gamma_init[i];
|
|
param.gamma_G[i] = gamma_init[i];
|
|
param.gamma_B[i] = gamma_init[i];
|
|
}
|
|
}
|
|
|
|
hexdump (DBG_info2, "gamma", param.gamma_R, 3 * GAMMA_LENGTH);
|
|
|
|
status = sanei_scsi_cmd (dev->sfd, ¶m, sizeof (param), NULL, NULL);
|
|
|
|
DBG (DBG_proc, "sceptre_send_gamma: exit, status=%d\n", status);
|
|
|
|
return (status);
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/* Entry points */
|
|
|
|
SANE_Status
|
|
sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize)
|
|
{
|
|
FILE *fp;
|
|
char dev_name[PATH_MAX];
|
|
size_t len;
|
|
|
|
DBG_INIT ();
|
|
|
|
DBG (DBG_proc, "sane_init: enter\n");
|
|
|
|
authorize = authorize; /* silence gcc */
|
|
|
|
DBG (DBG_error, "This is sane-sceptre version %d.%d-%d\n", V_MAJOR,
|
|
V_MINOR, BUILD);
|
|
DBG (DBG_error, "(C) 2002 by Frank Zago\n");
|
|
|
|
if (version_code)
|
|
{
|
|
*version_code = SANE_VERSION_CODE (V_MAJOR, V_MINOR, BUILD);
|
|
}
|
|
|
|
fp = sanei_config_open (SCEPTRE_CONFIG_FILE);
|
|
if (!fp)
|
|
{
|
|
/* default to /dev/scanner instead of insisting on config file */
|
|
attach_scanner ("/dev/scanner", 0);
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
while (sanei_config_read (dev_name, sizeof (dev_name), fp))
|
|
{
|
|
if (dev_name[0] == '#') /* ignore line comments */
|
|
continue;
|
|
len = strlen (dev_name);
|
|
|
|
if (!len)
|
|
continue; /* ignore empty lines */
|
|
|
|
sanei_config_attach_matching_devices (dev_name, attach_one);
|
|
}
|
|
|
|
DBG (DBG_proc, "sane_init: leave\n");
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
|
|
{
|
|
Sceptre_Scanner *dev;
|
|
int i;
|
|
|
|
DBG (DBG_proc, "sane_get_devices: enter\n");
|
|
|
|
local_only = local_only; /* silence gcc */
|
|
|
|
if (devlist)
|
|
free (devlist);
|
|
|
|
devlist = malloc ((num_devices + 1) * sizeof (devlist[0]));
|
|
if (!devlist)
|
|
return SANE_STATUS_NO_MEM;
|
|
|
|
i = 0;
|
|
for (dev = first_dev; i < num_devices; dev = dev->next)
|
|
devlist[i++] = &dev->sane;
|
|
devlist[i++] = 0;
|
|
|
|
*device_list = devlist;
|
|
|
|
DBG (DBG_proc, "sane_get_devices: exit\n");
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_open (SANE_String_Const devicename, SANE_Handle * handle)
|
|
{
|
|
Sceptre_Scanner *dev;
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_proc, "sane_open: enter\n");
|
|
|
|
/* search for devicename */
|
|
if (devicename[0])
|
|
{
|
|
DBG (DBG_info, "sane_open: devicename=%s\n", devicename);
|
|
|
|
for (dev = first_dev; dev; dev = dev->next)
|
|
{
|
|
if (strcmp (dev->sane.name, devicename) == 0)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!dev)
|
|
{
|
|
status = attach_scanner (devicename, &dev);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
return status;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DBG (DBG_sane_info, "sane_open: no devicename, opening first device\n");
|
|
dev = first_dev; /* empty devicename -> use first device */
|
|
}
|
|
|
|
if (!dev)
|
|
{
|
|
DBG (DBG_error, "No scanner found\n");
|
|
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
sceptre_init_options (dev);
|
|
|
|
/* Initialize the gamma table. */
|
|
memcpy (dev->gamma_R, gamma_init, dev->opt[OPT_GAMMA_VECTOR_R].size);
|
|
memcpy (dev->gamma_G, gamma_init, dev->opt[OPT_GAMMA_VECTOR_G].size);
|
|
memcpy (dev->gamma_B, gamma_init, dev->opt[OPT_GAMMA_VECTOR_B].size);
|
|
|
|
*handle = dev;
|
|
|
|
DBG (DBG_proc, "sane_open: exit\n");
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
const SANE_Option_Descriptor *
|
|
sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
|
|
{
|
|
Sceptre_Scanner *dev = handle;
|
|
|
|
DBG (DBG_proc, "sane_get_option_descriptor: enter, option %d\n", option);
|
|
|
|
if ((unsigned) option >= NUM_OPTIONS)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
DBG (DBG_proc, "sane_get_option_descriptor: exit\n");
|
|
|
|
return dev->opt + option;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_control_option (SANE_Handle handle, SANE_Int option,
|
|
SANE_Action action, void *val, SANE_Int * info)
|
|
{
|
|
Sceptre_Scanner *dev = handle;
|
|
SANE_Status status;
|
|
SANE_Word cap;
|
|
|
|
DBG (DBG_proc, "sane_control_option: enter, option %d, action %d\n",
|
|
option, action);
|
|
|
|
if (info)
|
|
{
|
|
*info = 0;
|
|
}
|
|
|
|
if (dev->scanning)
|
|
{
|
|
return SANE_STATUS_DEVICE_BUSY;
|
|
}
|
|
|
|
if (option < 0 || option >= NUM_OPTIONS)
|
|
{
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
cap = dev->opt[option].cap;
|
|
if (!SANE_OPTION_IS_ACTIVE (cap))
|
|
{
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
assert (dev->opt[option].name);
|
|
|
|
if (action == SANE_ACTION_GET_VALUE)
|
|
{
|
|
|
|
switch (option)
|
|
{
|
|
/* word options */
|
|
case OPT_NUM_OPTS:
|
|
case OPT_RESOLUTION:
|
|
case OPT_TL_X:
|
|
case OPT_TL_Y:
|
|
case OPT_BR_X:
|
|
case OPT_BR_Y:
|
|
case OPT_THRESHOLD:
|
|
case OPT_CUSTOM_GAMMA:
|
|
case OPT_HALFTONE_PATTERN:
|
|
case OPT_PREVIEW:
|
|
|
|
*(SANE_Word *) val = dev->val[option].w;
|
|
return SANE_STATUS_GOOD;
|
|
|
|
/* string options */
|
|
case OPT_MODE:
|
|
strcpy (val, dev->val[option].s);
|
|
return SANE_STATUS_GOOD;
|
|
|
|
case OPT_GAMMA_VECTOR_R:
|
|
case OPT_GAMMA_VECTOR_G:
|
|
case OPT_GAMMA_VECTOR_B:
|
|
memcpy (val, dev->val[option].wa, dev->opt[option].size);
|
|
return SANE_STATUS_GOOD;
|
|
|
|
default:
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
}
|
|
else if (action == SANE_ACTION_SET_VALUE)
|
|
{
|
|
|
|
if (!SANE_OPTION_IS_SETTABLE (cap))
|
|
{
|
|
DBG (DBG_error, "could not set option, not settable\n");
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
status = sanei_constrain_value (dev->opt + option, val, info);
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
DBG (DBG_error, "could not set option, invalid value\n");
|
|
return status;
|
|
}
|
|
|
|
switch (option)
|
|
{
|
|
|
|
/* Side-effect options */
|
|
case OPT_TL_X:
|
|
case OPT_TL_Y:
|
|
case OPT_BR_X:
|
|
case OPT_BR_Y:
|
|
case OPT_RESOLUTION:
|
|
if (info)
|
|
{
|
|
*info |= SANE_INFO_RELOAD_PARAMS;
|
|
}
|
|
dev->val[option].w = *(SANE_Word *) val;
|
|
return SANE_STATUS_GOOD;
|
|
|
|
/* Side-effect free options */
|
|
case OPT_THRESHOLD:
|
|
case OPT_HALFTONE_PATTERN:
|
|
case OPT_PREVIEW:
|
|
dev->val[option].w = *(SANE_Word *) val;
|
|
return SANE_STATUS_GOOD;
|
|
|
|
case OPT_MODE:
|
|
free (dev->val[OPT_MODE].s);
|
|
dev->val[OPT_MODE].s = (SANE_Char *) strdup (val);
|
|
|
|
/* Set default options for the scan modes. */
|
|
dev->opt[OPT_THRESHOLD].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_CUSTOM_GAMMA].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE;
|
|
|
|
if (strcmp (dev->val[OPT_MODE].s, LINEART_STR) == 0)
|
|
{
|
|
dev->scan_mode = SCEPTRE_LINEART;
|
|
dev->opt[OPT_THRESHOLD].cap &= ~SANE_CAP_INACTIVE;
|
|
}
|
|
else if (strcmp (dev->val[OPT_MODE].s, HALFTONE_STR) == 0)
|
|
{
|
|
dev->scan_mode = SCEPTRE_HALFTONE;
|
|
dev->opt[OPT_HALFTONE_PATTERN].cap &= ~SANE_CAP_INACTIVE;
|
|
}
|
|
else if (strcmp (dev->val[OPT_MODE].s, GRAY_STR) == 0)
|
|
{
|
|
dev->scan_mode = SCEPTRE_GRAYSCALE;
|
|
}
|
|
else if (strcmp (dev->val[OPT_MODE].s, COLOR_STR) == 0)
|
|
{
|
|
dev->scan_mode = SCEPTRE_COLOR;
|
|
dev->opt[OPT_CUSTOM_GAMMA].cap &= ~SANE_CAP_INACTIVE;
|
|
if (dev->val[OPT_CUSTOM_GAMMA].w)
|
|
{
|
|
dev->opt[OPT_GAMMA_VECTOR_R].cap &= ~SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].cap &= ~SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].cap &= ~SANE_CAP_INACTIVE;
|
|
}
|
|
}
|
|
|
|
if (info)
|
|
{
|
|
*info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
|
|
}
|
|
return SANE_STATUS_GOOD;
|
|
|
|
case OPT_GAMMA_VECTOR_R:
|
|
case OPT_GAMMA_VECTOR_G:
|
|
case OPT_GAMMA_VECTOR_B:
|
|
memcpy (dev->val[option].wa, val, dev->opt[option].size);
|
|
return SANE_STATUS_GOOD;
|
|
|
|
case OPT_CUSTOM_GAMMA:
|
|
dev->val[OPT_CUSTOM_GAMMA].w = *(SANE_Word *) val;
|
|
if (dev->val[OPT_CUSTOM_GAMMA].w)
|
|
{
|
|
/* use custom_gamma_table */
|
|
dev->opt[OPT_GAMMA_VECTOR_R].cap &= ~SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].cap &= ~SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].cap &= ~SANE_CAP_INACTIVE;
|
|
}
|
|
else
|
|
{
|
|
dev->opt[OPT_GAMMA_VECTOR_R].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_G].cap |= SANE_CAP_INACTIVE;
|
|
dev->opt[OPT_GAMMA_VECTOR_B].cap |= SANE_CAP_INACTIVE;
|
|
}
|
|
if (info)
|
|
{
|
|
*info |= SANE_INFO_RELOAD_OPTIONS;
|
|
}
|
|
return SANE_STATUS_GOOD;
|
|
|
|
default:
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
}
|
|
|
|
DBG (DBG_proc, "sane_control_option: exit, bad\n");
|
|
|
|
return SANE_STATUS_UNSUPPORTED;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_get_parameters (SANE_Handle handle, SANE_Parameters * params)
|
|
{
|
|
Sceptre_Scanner *dev = handle;
|
|
int x_dpi; /* X-Resolution */
|
|
|
|
DBG (DBG_proc, "sane_get_parameters: enter\n");
|
|
|
|
if (!(dev->scanning))
|
|
{
|
|
|
|
if (dev->val[OPT_PREVIEW].w == SANE_TRUE)
|
|
{
|
|
dev->resolution = 30; /* Windows TWAIN does 32 */
|
|
dev->x_tl = 0;
|
|
dev->y_tl = 0;
|
|
dev->x_br = mmToIlu (SANE_UNFIX (dev->x_range.max));
|
|
dev->y_br = mmToIlu (SANE_UNFIX (dev->y_range.max));
|
|
}
|
|
else
|
|
{
|
|
/* Setup the parameters for the scan. These values will be re-used
|
|
* in the SET WINDOWS command. */
|
|
dev->resolution = dev->val[OPT_RESOLUTION].w;
|
|
|
|
dev->x_tl = mmToIlu (SANE_UNFIX (dev->val[OPT_TL_X].w));
|
|
dev->y_tl = mmToIlu (SANE_UNFIX (dev->val[OPT_TL_Y].w));
|
|
dev->x_br = mmToIlu (SANE_UNFIX (dev->val[OPT_BR_X].w));
|
|
dev->y_br = mmToIlu (SANE_UNFIX (dev->val[OPT_BR_Y].w));
|
|
}
|
|
|
|
/* Check the corners are OK. */
|
|
if (dev->x_tl > dev->x_br)
|
|
{
|
|
int s;
|
|
s = dev->x_tl;
|
|
dev->x_tl = dev->x_br;
|
|
dev->x_br = s;
|
|
}
|
|
if (dev->y_tl > dev->y_br)
|
|
{
|
|
int s;
|
|
s = dev->y_tl;
|
|
dev->y_tl = dev->y_br;
|
|
dev->y_br = s;
|
|
}
|
|
|
|
dev->width = dev->x_br - dev->x_tl;
|
|
dev->length = dev->y_br - dev->y_tl;
|
|
|
|
/*
|
|
* Adjust the "X Resolution". The sceptre S1200 ignores the
|
|
* Y-Resolution parameter in the windows block. X-Resolution
|
|
* is used instead. However the limits are not the same for X
|
|
* (600 dpi) and Y (1200 dpi).
|
|
*/
|
|
x_dpi = dev->resolution;
|
|
if (x_dpi > 600)
|
|
{
|
|
x_dpi = 600;
|
|
}
|
|
|
|
/* Set depth */
|
|
switch (dev->scan_mode)
|
|
{
|
|
case SCEPTRE_LINEART:
|
|
dev->params.format = SANE_FRAME_GRAY;
|
|
dev->depth = 1;
|
|
break;
|
|
case SCEPTRE_HALFTONE:
|
|
dev->params.format = SANE_FRAME_GRAY;
|
|
dev->depth = 1;
|
|
break;
|
|
case SCEPTRE_GRAYSCALE:
|
|
dev->params.format = SANE_FRAME_GRAY;
|
|
dev->depth = 8;
|
|
break;
|
|
case SCEPTRE_COLOR:
|
|
dev->params.format = SANE_FRAME_RGB;
|
|
dev->depth = 8;
|
|
break;
|
|
}
|
|
|
|
/* Prepare the parameters for the caller. */
|
|
memset (&dev->params, 0, sizeof (SANE_Parameters));
|
|
|
|
/* this scanner does only one pass */
|
|
dev->params.last_frame = SANE_TRUE;
|
|
dev->params.depth = dev->depth;
|
|
|
|
/* Compute the number of pixels, bytes per lines and lines. */
|
|
switch (dev->scan_mode)
|
|
{
|
|
case SCEPTRE_LINEART:
|
|
case SCEPTRE_HALFTONE:
|
|
dev->params.pixels_per_line = (dev->width * x_dpi) / 600;
|
|
dev->params.pixels_per_line &= ~0x7; /* round down to 8 */
|
|
|
|
dev->params.bytes_per_line = (dev->params.pixels_per_line) / 8;
|
|
|
|
dev->params.lines = ((dev->length * dev->resolution) / 600);
|
|
if ((dev->params.lines) * 600 != (dev->length * dev->resolution))
|
|
{
|
|
/* Round up lines to 2. */
|
|
dev->params.lines &= ~1;
|
|
dev->params.lines += 2;
|
|
}
|
|
|
|
break;
|
|
|
|
case SCEPTRE_GRAYSCALE:
|
|
case SCEPTRE_COLOR:
|
|
/* pixels_per_line rounding rules:
|
|
* 2n + [0.0 .. 1.0] -> round to 2n
|
|
* 2n + ]1.0 .. 2.0] -> round to 2n + 2
|
|
*/
|
|
dev->params.pixels_per_line = (dev->width * x_dpi) / 600;
|
|
if (dev->params.pixels_per_line & 1)
|
|
{
|
|
if ((dev->params.pixels_per_line * 600) == (dev->width * x_dpi))
|
|
{
|
|
/* 2n */
|
|
dev->params.pixels_per_line--;
|
|
}
|
|
else
|
|
{
|
|
/* 2n+2 */
|
|
dev->params.pixels_per_line++;
|
|
}
|
|
}
|
|
|
|
dev->params.bytes_per_line =
|
|
dev->params.pixels_per_line * (dev->depth / 8);
|
|
|
|
/* lines number rounding rules:
|
|
* 2n + [0.0 .. 2.0[ -> round to 2n
|
|
*
|
|
* Note: the rounding is often incorrect at high
|
|
* resolution (ag more than 300dpi)
|
|
*/
|
|
dev->params.lines = (dev->length * dev->resolution) / 600;
|
|
dev->params.lines &= ~1;
|
|
|
|
break;
|
|
}
|
|
|
|
/* Find the proper color shifting parameter. */
|
|
if (dev->scan_mode == SCEPTRE_COLOR)
|
|
{
|
|
int i = 1;
|
|
while (resolutions_list[i] != dev->resolution)
|
|
{
|
|
i++;
|
|
}
|
|
dev->color_shift = color_shift_list[i];
|
|
}
|
|
else
|
|
{
|
|
dev->color_shift = 0;
|
|
}
|
|
|
|
DBG (DBG_proc, "color_shift = %d\n", dev->color_shift);
|
|
|
|
dev->bytes_left = dev->params.lines * dev->params.bytes_per_line;
|
|
}
|
|
|
|
/* Return the current values. */
|
|
if (params)
|
|
{
|
|
*params = (dev->params);
|
|
}
|
|
|
|
DBG (DBG_proc, "sane_get_parameters: exit\n");
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_start (SANE_Handle handle)
|
|
{
|
|
Sceptre_Scanner *dev = handle;
|
|
SANE_Status status;
|
|
|
|
DBG (DBG_proc, "sane_start: enter\n");
|
|
|
|
/* Refresh the parameters. This is necessary. */
|
|
sane_get_parameters (handle, NULL);
|
|
|
|
if (dev->image == NULL)
|
|
{
|
|
dev->image_size = 3 * dev->buffer_size;
|
|
dev->image = malloc (dev->image_size);
|
|
if (dev->image == NULL)
|
|
{
|
|
return SANE_STATUS_NO_MEM;
|
|
}
|
|
}
|
|
dev->image_end = 0;
|
|
dev->image_begin = 0;
|
|
|
|
dev->raster_size = dev->params.bytes_per_line / 3;
|
|
dev->raster_num = 0;
|
|
dev->raster_real = 0;
|
|
dev->line = 0;
|
|
|
|
/* Open again the scanner. */
|
|
if (sanei_scsi_open
|
|
(dev->devicename, &(dev->sfd), sceptre_sense_handler, dev) != 0)
|
|
{
|
|
DBG (DBG_error, "ERROR: sane_start: open failed\n");
|
|
return SANE_STATUS_INVAL;
|
|
}
|
|
|
|
/* The scanner must be ready. */
|
|
status = sceptre_wait_scanner (dev);
|
|
if (status)
|
|
{
|
|
sceptre_close (dev);
|
|
return status;
|
|
}
|
|
|
|
sceptre_do_diag (dev);
|
|
|
|
sceptre_set_mode (dev);
|
|
|
|
sceptre_set_window (dev);
|
|
|
|
sceptre_send_gamma (dev);
|
|
|
|
sceptre_scan (dev);
|
|
|
|
dev->scanning = SANE_TRUE;
|
|
|
|
DBG (DBG_proc, "sane_start: exit\n");
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len,
|
|
SANE_Int * len)
|
|
{
|
|
SANE_Status status;
|
|
Sceptre_Scanner *dev = handle;
|
|
size_t size;
|
|
size_t data_left;
|
|
|
|
DBG (DBG_proc, "sane_read: enter\n");
|
|
|
|
*len = 0;
|
|
|
|
if (!(dev->scanning))
|
|
{
|
|
/* OOPS, not scanning */
|
|
return do_cancel (dev);
|
|
}
|
|
|
|
if (dev->bytes_left <= 0)
|
|
{
|
|
return (SANE_STATUS_EOF);
|
|
}
|
|
|
|
if (dev->scan_mode == SCEPTRE_COLOR)
|
|
{
|
|
size = dev->image_end - dev->image_begin;
|
|
if (size > 0)
|
|
{
|
|
goto copy_color_buffer;
|
|
}
|
|
}
|
|
|
|
if ((status = sceptre_get_status (dev, &data_left)) != SANE_STATUS_GOOD)
|
|
{
|
|
return (status);
|
|
}
|
|
|
|
/*
|
|
* Try to read the maximum number of bytes.
|
|
*
|
|
* The windows driver reads no more than 0xffff byte, I've tried
|
|
* some bigger values, but the scanner is losing data!!!
|
|
*/
|
|
size = data_left;
|
|
if (size > dev->buffer_size)
|
|
{
|
|
size = dev->buffer_size;
|
|
}
|
|
|
|
/* If it is a preview, read only what we have been asked
|
|
* for. Else, try to maximize the throughput.
|
|
*/
|
|
if (dev->scan_mode != SCEPTRE_COLOR || dev->val[OPT_PREVIEW].w == SANE_TRUE)
|
|
{
|
|
if (size > (size_t) max_len)
|
|
size = max_len;
|
|
}
|
|
|
|
/* Always read a multiple of a line else the scanner will
|
|
* discard the remaining data. */
|
|
size = size - (size % dev->params.bytes_per_line);
|
|
|
|
if (dev->scan_mode == SCEPTRE_COLOR)
|
|
{
|
|
/* Since we do some more treatment, use a temporary buffer. */
|
|
status = sceptre_read (dev, dev->buffer, &size);
|
|
}
|
|
else
|
|
{
|
|
/* Direct read to the frontend's buffer. */
|
|
status = sceptre_read (dev, buf, &size);
|
|
}
|
|
|
|
if (status != SANE_STATUS_GOOD)
|
|
{
|
|
return (status);
|
|
}
|
|
|
|
if (dev->scan_mode == SCEPTRE_COLOR)
|
|
{
|
|
|
|
assert (dev->image_end >= dev->image_begin);
|
|
|
|
sceptre_adjust_raster (dev, size);
|
|
|
|
size = dev->image_end - dev->image_begin;
|
|
|
|
copy_color_buffer:
|
|
if (size)
|
|
{
|
|
/* Still got some data. Send it. */
|
|
if (size > (size_t) max_len)
|
|
size = max_len;
|
|
if (size > (size_t) dev->bytes_left)
|
|
size = dev->bytes_left;
|
|
|
|
memcpy (buf, dev->image + dev->image_begin, size);
|
|
dev->image_begin += size;
|
|
}
|
|
}
|
|
|
|
dev->bytes_left -= size;
|
|
*len = size;
|
|
|
|
DBG (DBG_info, "sane_read: leave (bytes_left=%d)\n", dev->bytes_left);
|
|
|
|
return SANE_STATUS_GOOD;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
|
|
{
|
|
DBG (DBG_proc, "sane_set_io_mode: enter\n");
|
|
|
|
handle = handle; /* silence gcc */
|
|
non_blocking = non_blocking; /* silence gcc */
|
|
|
|
DBG (DBG_proc, "sane_set_io_mode: exit\n");
|
|
|
|
return SANE_STATUS_UNSUPPORTED;
|
|
}
|
|
|
|
SANE_Status
|
|
sane_get_select_fd (SANE_Handle handle, SANE_Int * fd)
|
|
{
|
|
DBG (DBG_proc, "sane_get_select_fd: enter\n");
|
|
|
|
handle = handle; /* silence gcc */
|
|
fd = fd; /* silence gcc */
|
|
|
|
DBG (DBG_proc, "sane_get_select_fd: exit\n");
|
|
|
|
return SANE_STATUS_UNSUPPORTED;
|
|
}
|
|
|
|
void
|
|
sane_cancel (SANE_Handle handle)
|
|
{
|
|
Sceptre_Scanner *dev = handle;
|
|
|
|
DBG (DBG_proc, "sane_cancel: enter\n");
|
|
|
|
do_cancel (dev);
|
|
|
|
DBG (DBG_proc, "sane_cancel: exit\n");
|
|
}
|
|
|
|
void
|
|
sane_close (SANE_Handle handle)
|
|
{
|
|
Sceptre_Scanner *dev = handle;
|
|
Sceptre_Scanner *dev_tmp;
|
|
|
|
DBG (DBG_proc, "sane_close: enter\n");
|
|
|
|
do_cancel (dev);
|
|
sceptre_close (dev);
|
|
|
|
/* Unlink dev. */
|
|
if (first_dev == dev)
|
|
{
|
|
first_dev = dev->next;
|
|
}
|
|
else
|
|
{
|
|
dev_tmp = first_dev;
|
|
while (dev_tmp->next && dev_tmp->next != dev)
|
|
{
|
|
dev_tmp = dev_tmp->next;
|
|
}
|
|
if (dev_tmp->next != NULL)
|
|
{
|
|
dev_tmp->next = dev_tmp->next->next;
|
|
}
|
|
}
|
|
|
|
sceptre_free (dev);
|
|
num_devices--;
|
|
|
|
DBG (DBG_proc, "sane_close: exit\n");
|
|
}
|
|
|
|
void
|
|
sane_exit (void)
|
|
{
|
|
DBG (DBG_proc, "sane_exit: enter\n");
|
|
|
|
if (devlist)
|
|
{
|
|
free (devlist);
|
|
devlist = NULL;
|
|
}
|
|
|
|
DBG (DBG_proc, "sane_exit: exit\n");
|
|
}
|