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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-10-06 14:00:40 +0200
commit6e9c41a892ed0e0da326e0278b3221ce3f5713b8 (patch)
tree2e301d871bbeeb44aa57ff9cc070fcf3be484487 /backend/abaton.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/abaton.c')
-rw-r--r--backend/abaton.c1491
1 files changed, 1491 insertions, 0 deletions
diff --git a/backend/abaton.c b/backend/abaton.c
new file mode 100644
index 0000000..10f5c21
--- /dev/null
+++ b/backend/abaton.c
@@ -0,0 +1,1491 @@
+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 1998 David Huggins-Daines, heavily based on the Apple
+ scanner driver (since Abaton scanners are very similar to old Apple
+ scanners), which is (C) 1998 Milon Firikis, which is, in turn, based
+ on the Mustek driver, (C) 1996-7 David Mosberger-Tang.
+
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+
+ This file implements a SANE backend for Abaton flatbed scanners. */
+
+#include "../include/sane/config.h"
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "../include/_stdint.h"
+
+#include "../include/sane/sane.h"
+#include "../include/sane/sanei.h"
+#include "../include/sane/saneopts.h"
+#include "../include/sane/sanei_scsi.h"
+
+#define BACKEND_NAME abaton
+#include "../include/sane/sanei_backend.h"
+
+#ifndef PATH_MAX
+# define PATH_MAX 1024
+#endif
+
+#include "../include/sane/sanei_config.h"
+#define ABATON_CONFIG_FILE "abaton.conf"
+
+#include "abaton.h"
+
+
+
+static int num_devices;
+static Abaton_Device *first_dev;
+static Abaton_Scanner *first_handle;
+
+static SANE_String_Const mode_list[5];
+
+static const SANE_String_Const halftone_pattern_list[] =
+{
+ "spiral", "bayer",
+ 0
+};
+
+static const SANE_Range dpi_range =
+{
+ /* min, max, quant */
+ 72,
+ 300,
+ 1
+};
+
+static const SANE_Range enhance_range =
+{
+ 1,
+ 255,
+ 1
+};
+
+static const SANE_Range x_range =
+{
+ 0,
+ 8.5 * MM_PER_INCH,
+ 1
+};
+
+static const SANE_Range y_range =
+{
+ 0,
+ 14.0 * MM_PER_INCH,
+ 1
+};
+
+#define ERROR_MESSAGE 1
+#define USER_MESSAGE 5
+#define FLOW_CONTROL 50
+#define VARIABLE_CONTROL 70
+#define DEBUG_SPECIAL 100
+#define IO_MESSAGE 110
+#define INNER_LOOP 120
+
+
+/* SCSI commands that the Abaton scanners understand: */
+#define TEST_UNIT_READY 0x00
+#define REQUEST_SENSE 0x03
+#define INQUIRY 0x12
+#define START_STOP 0x1b
+#define SET_WINDOW 0x24
+#define READ_10 0x28
+#define WRITE_10 0x2b /* not used, AFAIK */
+#define GET_DATA_STATUS 0x34
+
+
+#define INQ_LEN 0x60
+static const uint8_t inquiry[] =
+{
+ INQUIRY, 0x00, 0x00, 0x00, INQ_LEN, 0x00
+};
+
+static const uint8_t test_unit_ready[] =
+{
+ TEST_UNIT_READY, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+/* convenience macros */
+#define ENABLE(OPTION) s->opt[OPTION].cap &= ~SANE_CAP_INACTIVE
+#define DISABLE(OPTION) s->opt[OPTION].cap |= SANE_CAP_INACTIVE
+#define IS_ACTIVE(OPTION) (((s->opt[OPTION].cap) & SANE_CAP_INACTIVE) == 0)
+
+/* store an 8-bit-wide value at the location specified by ptr */
+#define STORE8(ptr, val) (*((uint8_t *) ptr) = val)
+
+/* store a 16-bit-wide value in network (big-endian) byte order */
+#define STORE16(ptr, val) \
+ { \
+ *((uint8_t *) ptr) = (val >> 8) & 0xff; \
+ *((uint8_t *) ptr+1) = val & 0xff; \
+ }
+
+/* store a 24-bit-wide value in network (big-endian) byte order */
+#define STORE24(ptr, val) \
+ { \
+ *((uint8_t *) ptr) = (val >> 16) & 0xff; \
+ *((uint8_t *) ptr+1) = (val >> 8) & 0xff; \
+ *((uint8_t *) ptr+2) = val & 0xff; \
+ }
+
+/* store a 32-bit-wide value in network (big-endian) byte order */
+#define STORE32(ptr, val) \
+ { \
+ *((uint8_t *) ptr) = (val >> 24) & 0xff; \
+ *((uint8_t *) ptr+1) = (val >> 16) & 0xff; \
+ *((uint8_t *) ptr+2) = (val >> 8) & 0xff; \
+ *((uint8_t *) ptr+3) = val & 0xff; \
+ }
+
+/* retrieve a 24-bit-wide big-endian value at ptr */
+#define GET24(ptr) \
+ (*((uint8_t *) ptr) << 16) + \
+ (*((uint8_t *) ptr+1) << 8) + \
+ (*((uint8_t *) ptr+2))
+
+static SANE_Status
+wait_ready (int fd)
+{
+#define MAX_WAITING_TIME 60 /* one minute, at most */
+ struct timeval now, start;
+ SANE_Status status;
+
+ gettimeofday (&start, 0);
+
+ while (1)
+ {
+ DBG (USER_MESSAGE, "wait_ready: sending TEST_UNIT_READY\n");
+
+ status = sanei_scsi_cmd (fd, test_unit_ready, sizeof (test_unit_ready),
+ 0, 0);
+ switch (status)
+ {
+ default:
+ /* Ignore errors while waiting for scanner to become ready.
+ Some SCSI drivers return EIO while the scanner is
+ returning to the home position. */
+ DBG (ERROR_MESSAGE, "wait_ready: test unit ready failed (%s)\n",
+ sane_strstatus (status));
+ /* fall through */
+ case SANE_STATUS_DEVICE_BUSY:
+ gettimeofday (&now, 0);
+ if (now.tv_sec - start.tv_sec >= MAX_WAITING_TIME)
+ {
+ DBG (ERROR_MESSAGE, "wait_ready: timed out after %ld seconds\n",
+ (long) (now.tv_sec - start.tv_sec));
+ return SANE_STATUS_INVAL;
+ }
+ usleep (100000); /* retry after 100ms */
+ break;
+
+ case SANE_STATUS_GOOD:
+ return status;
+ }
+ }
+ return SANE_STATUS_INVAL;
+}
+
+static SANE_Status
+sense_handler (int scsi_fd, u_char * result, void *arg)
+{
+ scsi_fd = scsi_fd; /* silence gcc */
+ arg = arg; /* silence gcc */
+
+ switch (result[2] & 0x0F)
+ {
+ case 0:
+ DBG (USER_MESSAGE, "Sense: No sense Error\n");
+ return SANE_STATUS_GOOD;
+ case 2:
+ DBG (ERROR_MESSAGE, "Sense: Scanner not ready\n");
+ return SANE_STATUS_DEVICE_BUSY;
+ case 4:
+ DBG (ERROR_MESSAGE, "Sense: Hardware Error. Read more...\n");
+ return SANE_STATUS_IO_ERROR;
+ case 5:
+ DBG (ERROR_MESSAGE, "Sense: Illegal request\n");
+ return SANE_STATUS_UNSUPPORTED;
+ case 6:
+ DBG (ERROR_MESSAGE, "Sense: Unit Attention (Wait until scanner "
+ "boots)\n");
+ return SANE_STATUS_DEVICE_BUSY;
+ case 9:
+ DBG (ERROR_MESSAGE, "Sense: Vendor Unique. Read more...\n");
+ return SANE_STATUS_IO_ERROR;
+ default:
+ DBG (ERROR_MESSAGE, "Sense: Unknown Sense Key. Read more...\n");
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+request_sense (Abaton_Scanner * s)
+{
+ uint8_t cmd[6];
+ uint8_t result[22];
+ size_t size = sizeof (result);
+ SANE_Status status;
+
+ memset (cmd, 0, sizeof (cmd));
+ memset (result, 0, sizeof (result));
+
+ cmd[0] = REQUEST_SENSE;
+ STORE8 (cmd + 4, sizeof (result));
+ sanei_scsi_cmd (s->fd, cmd, sizeof (cmd), result, &size);
+
+ if (result[7] != 14)
+ {
+ DBG (ERROR_MESSAGE, "Additional Length %u\n", (unsigned int) result[7]);
+ status = SANE_STATUS_IO_ERROR;
+ }
+
+
+ status = sense_handler (s->fd, result, NULL);
+ if (status == SANE_STATUS_IO_ERROR)
+ {
+
+ /* Since I haven't figured out the vendor unique error codes on
+ this thing, I'll just handle the normal ones for now */
+
+ if (result[18] & 0x80)
+ DBG (ERROR_MESSAGE, "Sense: Dim Light (output of lamp below 70%%).\n");
+
+ if (result[18] & 0x40)
+ DBG (ERROR_MESSAGE, "Sense: No Light at all.\n");
+
+ if (result[18] & 0x20)
+ DBG (ERROR_MESSAGE, "Sense: No Home.\n");
+
+ if (result[18] & 0x10)
+ DBG (ERROR_MESSAGE, "Sense: No Limit. Tried to scan out of range.\n");
+ }
+
+ DBG (USER_MESSAGE, "Sense: Optical gain %u.\n", (unsigned int) result[20]);
+ return status;
+}
+
+static SANE_Status
+set_window (Abaton_Scanner * s)
+{
+ uint8_t cmd[10 + 40];
+ uint8_t *window = cmd + 10 + 8;
+ int invert;
+
+ memset (cmd, 0, sizeof (cmd));
+ cmd[0] = SET_WINDOW;
+ cmd[8] = 40;
+
+ /* Just like the Apple scanners, we put the resolution here */
+ STORE16 (window + 2, s->val[OPT_X_RESOLUTION].w);
+ STORE16 (window + 4, s->val[OPT_Y_RESOLUTION].w);
+
+ /* Unlike Apple scanners, these are pixel values */
+ STORE16 (window + 6, s->ULx);
+ STORE16 (window + 8, s->ULy);
+ STORE16 (window + 10, s->Width);
+ STORE16 (window + 12, s->Height);
+
+ STORE8 (window + 14, s->val[OPT_BRIGHTNESS].w);
+ STORE8 (window + 15, s->val[OPT_THRESHOLD].w);
+ STORE8 (window + 16, s->val[OPT_CONTRAST].w);
+
+ invert = s->val[OPT_NEGATIVE].w;
+
+ if (!strcmp (s->val[OPT_MODE].s, SANE_VALUE_SCAN_MODE_LINEART))
+ {
+ STORE8 (window + 17, 0);
+ }
+ else if (!strcmp (s->val[OPT_MODE].s, SANE_VALUE_SCAN_MODE_HALFTONE))
+ {
+ STORE8 (window + 17, 1);
+ }
+ else if (!strcmp (s->val[OPT_MODE].s, "Gray256")
+ || !strcmp (s->val[OPT_MODE].s, "Gray16"))
+ {
+ STORE8 (window + 17, 2);
+ invert = !s->val[OPT_NEGATIVE].w;
+ }
+ else
+ {
+ DBG (ERROR_MESSAGE, "Can't match mode %s\n", s->val[OPT_MODE].s);
+ return SANE_STATUS_INVAL;
+ }
+
+ STORE8 (window + 18, s->bpp);
+
+ if (!strcmp (s->val[OPT_HALFTONE_PATTERN].s, "spiral"))
+ {
+ STORE8 (window + 20, 0);
+ }
+ else if (!strcmp (s->val[OPT_HALFTONE_PATTERN].s, "bayer"))
+ {
+ STORE8 (window + 20, 1);
+ }
+ else
+ {
+ DBG (ERROR_MESSAGE, "Can't match haftone pattern %s\n",
+ s->val[OPT_HALFTONE_PATTERN].s);
+ return SANE_STATUS_INVAL;
+ }
+
+ /* We have to invert these ones for some reason, so why not
+ let the scanner do it for us... */
+ STORE8 (window + 21, invert ? 0x80 : 0);
+
+ STORE16 (window + 22, (s->val[OPT_MIRROR].w != 0));
+
+ return sanei_scsi_cmd (s->fd, cmd, sizeof (cmd), 0, 0);
+}
+
+static SANE_Status
+start_scan (Abaton_Scanner * s)
+{
+ SANE_Status status;
+ uint8_t start[7];
+
+
+ memset (start, 0, sizeof (start));
+ start[0] = START_STOP;
+ start[4] = 1;
+
+ status = sanei_scsi_cmd (s->fd, start, sizeof (start), 0, 0);
+ return status;
+}
+
+static SANE_Status
+attach (const char *devname, Abaton_Device ** devp, int may_wait)
+{
+ char result[INQ_LEN];
+ const char *model_name = result + 44;
+ int fd, abaton_scanner;
+ Abaton_Device *dev;
+ SANE_Status status;
+ size_t size;
+
+ for (dev = first_dev; dev; dev = dev->next)
+ if (strcmp (dev->sane.name, devname) == 0)
+ {
+ if (devp)
+ *devp = dev;
+ return SANE_STATUS_GOOD;
+ }
+
+ DBG (USER_MESSAGE, "attach: opening %s\n", devname);
+ status = sanei_scsi_open (devname, &fd, sense_handler, 0);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (ERROR_MESSAGE, "attach: open failed (%s)\n",
+ sane_strstatus (status));
+ return SANE_STATUS_INVAL;
+ }
+
+ if (may_wait)
+ wait_ready (fd);
+
+ DBG (USER_MESSAGE, "attach: sending INQUIRY\n");
+ size = sizeof (result);
+ status = sanei_scsi_cmd (fd, inquiry, sizeof (inquiry), result, &size);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (ERROR_MESSAGE, "attach: inquiry failed (%s)\n",
+ sane_strstatus (status));
+ sanei_scsi_close (fd);
+ return status;
+ }
+
+ status = wait_ready (fd);
+ sanei_scsi_close (fd);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ /* check that we've got an Abaton */
+ abaton_scanner = (strncmp (result + 8, "ABATON ", 8) == 0);
+ model_name = result + 16;
+
+ /* make sure it's a scanner ;-) */
+ abaton_scanner = abaton_scanner && (result[0] == 0x06);
+
+ if (!abaton_scanner)
+ {
+ DBG (ERROR_MESSAGE, "attach: device doesn't look like an Abaton scanner "
+ "(result[0]=%#02x)\n", result[0]);
+ return SANE_STATUS_INVAL;
+ }
+
+ dev = malloc (sizeof (*dev));
+ if (!dev)
+ return SANE_STATUS_NO_MEM;
+
+ memset (dev, 0, sizeof (*dev));
+
+ dev->sane.name = strdup (devname);
+ dev->sane.vendor = "Abaton";
+ dev->sane.model = strndup (model_name, 16);
+ dev->sane.type = "flatbed scanner";
+
+ if (!strncmp (model_name, "SCAN 300/GS", 11))
+ {
+ dev->ScannerModel = ABATON_300GS;
+ }
+ else if (!strncmp (model_name, "SCAN 300/S", 10))
+ {
+ dev->ScannerModel = ABATON_300S;
+ }
+
+ DBG (USER_MESSAGE, "attach: found Abaton scanner model %s (%s)\n",
+ dev->sane.model, dev->sane.type);
+
+ ++num_devices;
+ dev->next = first_dev;
+ first_dev = dev;
+
+ if (devp)
+ *devp = dev;
+
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+attach_one (const char *devname)
+{
+ return attach (devname, 0, SANE_FALSE);
+}
+
+static SANE_Status
+calc_parameters (Abaton_Scanner * s)
+{
+ SANE_String val = s->val[OPT_MODE].s;
+ SANE_Status status = SANE_STATUS_GOOD;
+ SANE_Int dpix = s->val[OPT_X_RESOLUTION].w;
+ SANE_Int dpiy = s->val[OPT_Y_RESOLUTION].w;
+ double ulx, uly, width, height;
+
+ DBG (FLOW_CONTROL, "Entering calc_parameters\n");
+
+ if (!strcmp (val, SANE_VALUE_SCAN_MODE_LINEART) || !strcmp (val, SANE_VALUE_SCAN_MODE_HALFTONE))
+ {
+ s->params.depth = 1;
+ s->bpp = 1;
+ }
+ else if (!strcmp (val, "Gray16"))
+ {
+ s->params.depth = 8;
+ s->bpp = 4;
+ }
+ else if (!strcmp (val, "Gray256"))
+ {
+ s->params.depth = 8;
+ s->bpp = 8;
+ }
+ else
+ {
+ DBG (ERROR_MESSAGE, "calc_parameters: Invalid mode %s\n", (char *) val);
+ status = SANE_STATUS_INVAL;
+ }
+
+ /* in inches */
+ ulx = (double) s->val[OPT_TL_X].w / MM_PER_INCH;
+ uly = (double) s->val[OPT_TL_Y].w / MM_PER_INCH;
+ width = (double) s->val[OPT_BR_X].w / MM_PER_INCH - ulx;
+ height = (double) s->val[OPT_BR_Y].w / MM_PER_INCH - uly;
+
+ DBG (VARIABLE_CONTROL, "(inches) ulx: %f, uly: %f, width: %f, height: %f\n",
+ ulx, uly, width, height);
+
+ /* turn 'em into pixel quantities */
+ s->ULx = ulx * dpix;
+ s->ULy = uly * dpiy;
+ s->Width = width * dpix;
+ s->Height = height * dpiy;
+
+ DBG (VARIABLE_CONTROL, "(pixels) ulx: %d, uly: %d, width: %d, height: %d\n",
+ s->ULx, s->ULy, s->Width, s->Height);
+
+ /* floor width to a byte multiple */
+ if ((s->Width * s->bpp) % 8)
+ {
+ s->Width /= 8;
+ s->Width *= 8;
+ DBG (VARIABLE_CONTROL, "Adapting to width %d\n", s->Width);
+ }
+
+ s->params.pixels_per_line = s->Width;
+ s->params.lines = s->Height;
+ s->params.bytes_per_line = s->params.pixels_per_line * s->params.depth / 8;
+
+
+ DBG (VARIABLE_CONTROL, "format=%d\n", s->params.format);
+ DBG (VARIABLE_CONTROL, "last_frame=%d\n", s->params.last_frame);
+ DBG (VARIABLE_CONTROL, "lines=%d\n", s->params.lines);
+ DBG (VARIABLE_CONTROL, "depth=%d (%d)\n", s->params.depth, s->bpp);
+ DBG (VARIABLE_CONTROL, "pixels_per_line=%d\n", s->params.pixels_per_line);
+ DBG (VARIABLE_CONTROL, "bytes_per_line=%d\n", s->params.bytes_per_line);
+ DBG (VARIABLE_CONTROL, "Pixels %dx%dx%d\n",
+ s->params.pixels_per_line, s->params.lines, 1 << s->params.depth);
+
+ DBG (FLOW_CONTROL, "Leaving calc_parameters\n");
+ return status;
+}
+
+static SANE_Status
+mode_update (SANE_Handle handle, char *val)
+{
+ Abaton_Scanner *s = handle;
+
+ if (!strcmp (val, SANE_VALUE_SCAN_MODE_LINEART))
+ {
+ DISABLE (OPT_BRIGHTNESS);
+ DISABLE (OPT_CONTRAST);
+ ENABLE (OPT_THRESHOLD);
+ DISABLE (OPT_HALFTONE_PATTERN);
+ }
+ else if (!strcmp (val, SANE_VALUE_SCAN_MODE_HALFTONE))
+ {
+ ENABLE (OPT_BRIGHTNESS);
+ ENABLE (OPT_CONTRAST);
+ DISABLE (OPT_THRESHOLD);
+ ENABLE (OPT_HALFTONE_PATTERN);
+ }
+ else if (!strcmp (val, "Gray16") || !strcmp (val, "Gray256"))
+ {
+ ENABLE (OPT_BRIGHTNESS);
+ ENABLE (OPT_CONTRAST);
+ DISABLE (OPT_THRESHOLD);
+ DISABLE (OPT_HALFTONE_PATTERN);
+ } /* End of Gray */
+ else
+ {
+ DBG (ERROR_MESSAGE, "Invalid mode %s\n", (char *) val);
+ return SANE_STATUS_INVAL;
+ }
+
+ calc_parameters (s);
+
+ return SANE_STATUS_GOOD;
+}
+
+/* find the longest of a list of strings */
+static size_t
+max_string_size (const SANE_String_Const strings[])
+{
+ size_t size, max_size = 0;
+ int i;
+
+ for (i = 0; strings[i]; ++i)
+ {
+ size = strlen (strings[i]) + 1;
+ if (size > max_size)
+ max_size = size;
+ }
+
+ return max_size;
+}
+
+static SANE_Status
+init_options (Abaton_Scanner * s)
+{
+ int i;
+
+ memset (s->opt, 0, sizeof (s->opt));
+ memset (s->val, 0, sizeof (s->val));
+
+ for (i = 0; i < NUM_OPTIONS; ++i)
+ {
+ s->opt[i].size = sizeof (SANE_Word);
+ s->opt[i].cap = SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT;
+ }
+
+ s->opt[OPT_NUM_OPTS].title = SANE_TITLE_NUM_OPTIONS;
+ s->opt[OPT_NUM_OPTS].desc = SANE_DESC_NUM_OPTIONS;
+ s->opt[OPT_NUM_OPTS].type = SANE_TYPE_INT;
+ s->opt[OPT_NUM_OPTS].cap = SANE_CAP_SOFT_DETECT;
+ s->val[OPT_NUM_OPTS].w = NUM_OPTIONS;
+
+
+ /* "Mode" group: */
+ s->opt[OPT_MODE_GROUP].title = "Scan Mode";
+ s->opt[OPT_MODE_GROUP].desc = "";
+ s->opt[OPT_MODE_GROUP].type = SANE_TYPE_GROUP;
+ s->opt[OPT_MODE_GROUP].cap = 0;
+ s->opt[OPT_MODE_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ mode_list[0]=SANE_VALUE_SCAN_MODE_LINEART;
+
+ switch (s->hw->ScannerModel)
+ {
+ case ABATON_300GS:
+ mode_list[1]=SANE_VALUE_SCAN_MODE_HALFTONE;
+ mode_list[2]="Gray16";
+ mode_list[3]="Gray256";
+ mode_list[4]=NULL;
+ break;
+ case ABATON_300S:
+ default:
+ mode_list[1]=NULL;
+ break;
+ }
+
+ /* scan mode */
+ s->opt[OPT_MODE].name = SANE_NAME_SCAN_MODE;
+ s->opt[OPT_MODE].title = SANE_TITLE_SCAN_MODE;
+ s->opt[OPT_MODE].desc = SANE_DESC_SCAN_MODE;
+ s->opt[OPT_MODE].type = SANE_TYPE_STRING;
+ s->opt[OPT_MODE].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ s->opt[OPT_MODE].size = max_string_size (mode_list);
+ s->opt[OPT_MODE].constraint.string_list = mode_list;
+ s->val[OPT_MODE].s = strdup (mode_list[0]);
+
+ /* resolution - horizontal */
+ s->opt[OPT_X_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION;
+ s->opt[OPT_X_RESOLUTION].title = SANE_TITLE_SCAN_X_RESOLUTION;
+ s->opt[OPT_X_RESOLUTION].desc = SANE_DESC_SCAN_X_RESOLUTION;
+ s->opt[OPT_X_RESOLUTION].type = SANE_TYPE_INT;
+ s->opt[OPT_X_RESOLUTION].unit = SANE_UNIT_DPI;
+ s->opt[OPT_X_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_X_RESOLUTION].constraint.range = &dpi_range;
+ s->val[OPT_X_RESOLUTION].w = 150;
+
+ /* resolution - vertical */
+ s->opt[OPT_Y_RESOLUTION].name = SANE_NAME_SCAN_Y_RESOLUTION;
+ s->opt[OPT_Y_RESOLUTION].title = SANE_TITLE_SCAN_Y_RESOLUTION;
+ s->opt[OPT_Y_RESOLUTION].desc = SANE_DESC_SCAN_Y_RESOLUTION;
+ s->opt[OPT_Y_RESOLUTION].type = SANE_TYPE_INT;
+ s->opt[OPT_Y_RESOLUTION].unit = SANE_UNIT_DPI;
+ s->opt[OPT_Y_RESOLUTION].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_Y_RESOLUTION].constraint.range = &dpi_range;
+ s->val[OPT_Y_RESOLUTION].w = 150;
+
+ /* constrain resolutions */
+ s->opt[OPT_RESOLUTION_BIND].name = SANE_NAME_RESOLUTION_BIND;
+ s->opt[OPT_RESOLUTION_BIND].title = SANE_TITLE_RESOLUTION_BIND;
+ s->opt[OPT_RESOLUTION_BIND].desc = SANE_DESC_RESOLUTION_BIND;
+ s->opt[OPT_RESOLUTION_BIND].type = SANE_TYPE_BOOL;
+ s->opt[OPT_RESOLUTION_BIND].unit = SANE_UNIT_NONE;
+ s->opt[OPT_RESOLUTION_BIND].constraint_type = SANE_CONSTRAINT_NONE;
+ /* until I fix it */
+ s->val[OPT_RESOLUTION_BIND].w = SANE_FALSE;
+
+ /* preview mode */
+ s->opt[OPT_PREVIEW].name = SANE_NAME_PREVIEW;
+ s->opt[OPT_PREVIEW].title = SANE_TITLE_PREVIEW;
+ s->opt[OPT_PREVIEW].desc = SANE_DESC_PREVIEW;
+ s->opt[OPT_PREVIEW].cap = SANE_CAP_SOFT_DETECT | SANE_CAP_SOFT_SELECT;
+ s->opt[OPT_PREVIEW].type = SANE_TYPE_BOOL;
+ s->val[OPT_PREVIEW].w = SANE_FALSE;
+
+ /* halftone pattern */
+ s->opt[OPT_HALFTONE_PATTERN].name = SANE_NAME_HALFTONE_PATTERN;
+ s->opt[OPT_HALFTONE_PATTERN].title = SANE_TITLE_HALFTONE_PATTERN;
+ s->opt[OPT_HALFTONE_PATTERN].desc = SANE_DESC_HALFTONE_PATTERN;
+ s->opt[OPT_HALFTONE_PATTERN].size = max_string_size (halftone_pattern_list);
+ s->opt[OPT_HALFTONE_PATTERN].type = SANE_TYPE_STRING;
+ s->opt[OPT_HALFTONE_PATTERN].cap |= SANE_CAP_INACTIVE;
+ s->opt[OPT_HALFTONE_PATTERN].constraint_type = SANE_CONSTRAINT_STRING_LIST;
+ s->opt[OPT_HALFTONE_PATTERN].constraint.string_list = halftone_pattern_list;
+ s->val[OPT_HALFTONE_PATTERN].s = strdup (halftone_pattern_list[0]);
+
+
+ /* "Geometry" group: */
+ s->opt[OPT_GEOMETRY_GROUP].title = "Geometry";
+ s->opt[OPT_GEOMETRY_GROUP].desc = "";
+ s->opt[OPT_GEOMETRY_GROUP].type = SANE_TYPE_GROUP;
+ s->opt[OPT_GEOMETRY_GROUP].cap = SANE_CAP_ADVANCED;
+ s->opt[OPT_GEOMETRY_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* top-left x */
+ s->opt[OPT_TL_X].name = SANE_NAME_SCAN_TL_X;
+ s->opt[OPT_TL_X].title = SANE_TITLE_SCAN_TL_X;
+ s->opt[OPT_TL_X].desc = SANE_DESC_SCAN_TL_X;
+ s->opt[OPT_TL_X].type = SANE_TYPE_INT;
+ s->opt[OPT_TL_X].unit = SANE_UNIT_MM;
+ s->opt[OPT_TL_X].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_TL_X].constraint.range = &x_range;
+ s->val[OPT_TL_X].w = 0;
+
+ /* top-left y */
+ s->opt[OPT_TL_Y].name = SANE_NAME_SCAN_TL_Y;
+ s->opt[OPT_TL_Y].title = SANE_TITLE_SCAN_TL_Y;
+ s->opt[OPT_TL_Y].desc = SANE_DESC_SCAN_TL_Y;
+ s->opt[OPT_TL_Y].type = SANE_TYPE_INT;
+ s->opt[OPT_TL_Y].unit = SANE_UNIT_MM;
+ s->opt[OPT_TL_Y].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_TL_Y].constraint.range = &y_range;
+ s->val[OPT_TL_Y].w = 0;
+
+ /* bottom-right x */
+ s->opt[OPT_BR_X].name = SANE_NAME_SCAN_BR_X;
+ s->opt[OPT_BR_X].title = SANE_TITLE_SCAN_BR_X;
+ s->opt[OPT_BR_X].desc = SANE_DESC_SCAN_BR_X;
+ s->opt[OPT_BR_X].type = SANE_TYPE_INT;
+ s->opt[OPT_BR_X].unit = SANE_UNIT_MM;
+ s->opt[OPT_BR_X].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_BR_X].constraint.range = &x_range;
+ s->val[OPT_BR_X].w = x_range.max;
+
+ /* bottom-right y */
+ s->opt[OPT_BR_Y].name = SANE_NAME_SCAN_BR_Y;
+ s->opt[OPT_BR_Y].title = SANE_TITLE_SCAN_BR_Y;
+ s->opt[OPT_BR_Y].desc = SANE_DESC_SCAN_BR_Y;
+ s->opt[OPT_BR_Y].type = SANE_TYPE_INT;
+ s->opt[OPT_BR_Y].unit = SANE_UNIT_MM;
+ s->opt[OPT_BR_Y].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_BR_Y].constraint.range = &y_range;
+ s->val[OPT_BR_Y].w = y_range.max;
+
+
+ /* "Enhancement" group: */
+ s->opt[OPT_ENHANCEMENT_GROUP].title = "Enhancement";
+ s->opt[OPT_ENHANCEMENT_GROUP].desc = "";
+ s->opt[OPT_ENHANCEMENT_GROUP].type = SANE_TYPE_GROUP;
+ s->opt[OPT_ENHANCEMENT_GROUP].cap = 0;
+ s->opt[OPT_ENHANCEMENT_GROUP].constraint_type = SANE_CONSTRAINT_NONE;
+
+ /* brightness */
+ s->opt[OPT_BRIGHTNESS].name = SANE_NAME_BRIGHTNESS;
+ s->opt[OPT_BRIGHTNESS].title = SANE_TITLE_BRIGHTNESS;
+ s->opt[OPT_BRIGHTNESS].desc = SANE_DESC_BRIGHTNESS;
+ s->opt[OPT_BRIGHTNESS].type = SANE_TYPE_INT;
+ s->opt[OPT_BRIGHTNESS].unit = SANE_UNIT_NONE;
+ s->opt[OPT_BRIGHTNESS].cap |= SANE_CAP_INACTIVE;
+ s->opt[OPT_BRIGHTNESS].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_BRIGHTNESS].constraint.range = &enhance_range;
+ s->val[OPT_BRIGHTNESS].w = 150;
+
+ /* contrast */
+ s->opt[OPT_CONTRAST].name = SANE_NAME_CONTRAST;
+ s->opt[OPT_CONTRAST].title = SANE_TITLE_CONTRAST;
+ s->opt[OPT_CONTRAST].desc = SANE_DESC_CONTRAST;
+ s->opt[OPT_CONTRAST].type = SANE_TYPE_INT;
+ s->opt[OPT_CONTRAST].unit = SANE_UNIT_NONE;
+ s->opt[OPT_CONTRAST].cap |= SANE_CAP_INACTIVE;
+ s->opt[OPT_CONTRAST].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_CONTRAST].constraint.range = &enhance_range;
+ s->val[OPT_CONTRAST].w = 150;
+
+ /* threshold */
+ s->opt[OPT_THRESHOLD].name = SANE_NAME_THRESHOLD;
+ s->opt[OPT_THRESHOLD].title = SANE_TITLE_THRESHOLD;
+ s->opt[OPT_THRESHOLD].desc = SANE_DESC_THRESHOLD;
+ s->opt[OPT_THRESHOLD].type = SANE_TYPE_INT;
+ s->opt[OPT_THRESHOLD].unit = SANE_UNIT_NONE;
+ s->opt[OPT_THRESHOLD].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_THRESHOLD].constraint.range = &enhance_range;
+ s->val[OPT_THRESHOLD].w = 150;
+
+ /* negative */
+ s->opt[OPT_NEGATIVE].name = SANE_NAME_NEGATIVE;
+ s->opt[OPT_NEGATIVE].title = SANE_TITLE_NEGATIVE;
+ s->opt[OPT_NEGATIVE].desc = SANE_DESC_NEGATIVE;
+ s->opt[OPT_NEGATIVE].type = SANE_TYPE_BOOL;
+ s->opt[OPT_NEGATIVE].unit = SANE_UNIT_NONE;
+ s->opt[OPT_NEGATIVE].constraint_type = SANE_CONSTRAINT_NONE;
+ s->val[OPT_NEGATIVE].w = SANE_FALSE;
+
+ /* mirror-image */
+ s->opt[OPT_MIRROR].name = "mirror";
+ s->opt[OPT_MIRROR].title = "Mirror Image";
+ s->opt[OPT_MIRROR].desc = "Scan in mirror-image";
+ s->opt[OPT_MIRROR].type = SANE_TYPE_BOOL;
+ s->opt[OPT_MIRROR].unit = SANE_UNIT_NONE;
+ s->opt[OPT_MIRROR].constraint_type = SANE_CONSTRAINT_NONE;
+ s->val[OPT_MIRROR].w = SANE_FALSE;
+
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize)
+{
+ char dev_name[PATH_MAX];
+ size_t len;
+ FILE *fp;
+
+ authorize = authorize; /* silence gcc */
+
+ DBG_INIT ();
+
+ if (version_code)
+ *version_code = SANE_VERSION_CODE (SANE_CURRENT_MAJOR, V_MINOR, 0);
+
+ fp = sanei_config_open (ABATON_CONFIG_FILE);
+ if (!fp)
+ {
+ /* default to /dev/scanner instead of insisting on config file */
+ attach ("/dev/scanner", 0, SANE_FALSE);
+ 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 */
+
+ if (strncmp (dev_name, "option", 6) == 0
+ && isspace (dev_name[6]))
+ {
+ const char *str = dev_name + 7;
+
+ while (isspace (*str))
+ ++str;
+
+ continue;
+ }
+
+ sanei_config_attach_matching_devices (dev_name, attach_one);
+ }
+ fclose (fp);
+ return SANE_STATUS_GOOD;
+}
+
+void
+sane_exit (void)
+{
+ Abaton_Device *dev, *next;
+
+ for (dev = first_dev; dev; dev = next)
+ {
+ next = dev->next;
+ free ((void *) dev->sane.name);
+ free ((void *) dev->sane.model);
+ free (dev);
+ }
+}
+
+SANE_Status
+sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
+{
+ static const SANE_Device **devlist = 0;
+ Abaton_Device *dev;
+ int i;
+
+ 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;
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+sane_open (SANE_String_Const devicename, SANE_Handle * handle)
+{
+ Abaton_Device *dev;
+ SANE_Status status;
+ Abaton_Scanner *s;
+
+ if (devicename[0])
+ {
+ for (dev = first_dev; dev; dev = dev->next)
+ if (strcmp (dev->sane.name, devicename) == 0)
+ break;
+
+ if (!dev)
+ {
+ status = attach (devicename, &dev, SANE_TRUE);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ }
+ }
+ else
+ /* empty devicname -> use first device */
+ dev = first_dev;
+
+ if (!dev)
+ return SANE_STATUS_INVAL;
+
+ s = malloc (sizeof (*s));
+ if (!s)
+ return SANE_STATUS_NO_MEM;
+ memset (s, 0, sizeof (*s));
+ s->fd = -1;
+ s->hw = dev;
+
+ init_options (s);
+
+ /* set up some universal parameters */
+ s->params.last_frame = SANE_TRUE;
+ s->params.format = SANE_FRAME_GRAY;
+
+ /* insert newly opened handle into list of open handles: */
+ s->next = first_handle;
+ first_handle = s;
+
+ *handle = s;
+ return SANE_STATUS_GOOD;
+}
+
+void
+sane_close (SANE_Handle handle)
+{
+ Abaton_Scanner *prev, *s;
+
+ /* remove handle from list of open handles: */
+ prev = 0;
+ for (s = first_handle; s; s = s->next)
+ {
+ if (s == (Abaton_Scanner *) handle)
+ break;
+ prev = s;
+ }
+ if (!s)
+ {
+ DBG (ERROR_MESSAGE, "close: invalid handle %p\n", handle);
+ return; /* oops, not a handle we know about */
+ }
+
+ if (prev)
+ prev->next = s->next;
+ else
+ first_handle = s->next;
+
+ free (handle);
+}
+
+const SANE_Option_Descriptor *
+sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
+{
+ Abaton_Scanner *s = handle;
+
+ if ((unsigned) option >= NUM_OPTIONS)
+ return NULL;
+
+ return s->opt + option;
+}
+
+SANE_Status
+sane_control_option (SANE_Handle handle, SANE_Int option,
+ SANE_Action action, void *val, SANE_Int * info)
+{
+ Abaton_Scanner *s = handle;
+ SANE_Status status;
+ SANE_Word cap;
+
+
+ if (option < 0 || option >= NUM_OPTIONS)
+ return SANE_STATUS_INVAL;
+
+ if (info != NULL)
+ *info = 0;
+
+ if (s->scanning)
+ return SANE_STATUS_DEVICE_BUSY;
+
+ cap = s->opt[option].cap;
+
+ if (!SANE_OPTION_IS_ACTIVE (cap))
+ return SANE_STATUS_INVAL;
+
+ if (action == SANE_ACTION_GET_VALUE)
+ {
+ switch (option)
+ {
+ /* word options: */
+ case OPT_NUM_OPTS:
+ case OPT_X_RESOLUTION:
+ case OPT_Y_RESOLUTION:
+ case OPT_RESOLUTION_BIND:
+ case OPT_PREVIEW:
+ case OPT_TL_X:
+ case OPT_TL_Y:
+ case OPT_BR_X:
+ case OPT_BR_Y:
+ case OPT_BRIGHTNESS:
+ case OPT_CONTRAST:
+ case OPT_THRESHOLD:
+ case OPT_NEGATIVE:
+ case OPT_MIRROR:
+ *(SANE_Word *) val = s->val[option].w;
+ return SANE_STATUS_GOOD;
+
+ /* string options */
+
+ case OPT_MODE:
+ case OPT_HALFTONE_PATTERN:
+ status = sanei_constrain_value (s->opt + option, s->val[option].s,
+ info);
+ strcpy (val, s->val[option].s);
+ return SANE_STATUS_GOOD;
+ }
+ }
+ else if (action == SANE_ACTION_SET_VALUE)
+ {
+ if (!SANE_OPTION_IS_SETTABLE (cap))
+ return SANE_STATUS_INVAL;
+
+ status = sanei_constrain_value (s->opt + option, val, info);
+
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+
+ switch (option)
+ {
+ /* resolution should be uniform for previews, or when the
+ user says so. */
+ case OPT_PREVIEW:
+ s->val[option].w = *(SANE_Word *) val;
+ if (*(SANE_Word *) val) {
+ s->val[OPT_Y_RESOLUTION].w = s->val[OPT_X_RESOLUTION].w;
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ }
+ /* always recalculate! */
+ calc_parameters (s);
+ if (info)
+ *info |= SANE_INFO_RELOAD_PARAMS;
+ return SANE_STATUS_GOOD;
+
+ case OPT_RESOLUTION_BIND:
+ s->val[option].w = *(SANE_Word *) val;
+ if (*(SANE_Word *) val) {
+ s->val[OPT_Y_RESOLUTION].w = s->val[OPT_X_RESOLUTION].w;
+ calc_parameters (s);
+ if (info)
+ *info |= SANE_INFO_RELOAD_PARAMS |
+ SANE_INFO_RELOAD_OPTIONS;
+ }
+ return SANE_STATUS_GOOD;
+
+ case OPT_X_RESOLUTION:
+ if (s->val[OPT_PREVIEW].w || s->val[OPT_RESOLUTION_BIND].w) {
+ s->val[OPT_Y_RESOLUTION].w = *(SANE_Word *)val;
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ }
+ s->val[option].w = *(SANE_Word *) val;
+ calc_parameters (s);
+ if (info)
+ *info |= SANE_INFO_RELOAD_PARAMS;
+ return SANE_STATUS_GOOD;
+
+ case OPT_Y_RESOLUTION:
+ if (s->val[OPT_PREVIEW].w || s->val[OPT_RESOLUTION_BIND].w) {
+ s->val[OPT_X_RESOLUTION].w = *(SANE_Word *)val;
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ }
+ s->val[option].w = *(SANE_Word *) val;
+ calc_parameters (s);
+ if (info)
+ *info |= SANE_INFO_RELOAD_PARAMS;
+ return SANE_STATUS_GOOD;
+
+ /* these ones don't have crazy side effects */
+ case OPT_TL_X:
+ case OPT_TL_Y:
+ case OPT_BR_Y:
+ s->val[option].w = *(SANE_Word *) val;
+ calc_parameters (s);
+ if (info)
+ *info |= SANE_INFO_RELOAD_PARAMS;
+ return SANE_STATUS_GOOD;
+
+ /* this one is somewhat imprecise */
+ case OPT_BR_X:
+ s->val[option].w = *(SANE_Word *) val;
+ calc_parameters (s);
+ if (info)
+ *info |= SANE_INFO_RELOAD_PARAMS
+ | SANE_INFO_INEXACT;
+ return SANE_STATUS_GOOD;
+
+ /* no side-effects whatsoever */
+ case OPT_BRIGHTNESS:
+ case OPT_CONTRAST:
+ case OPT_THRESHOLD:
+ case OPT_NEGATIVE:
+ case OPT_MIRROR:
+
+ s->val[option].w = *(SANE_Word *) val;
+ return SANE_STATUS_GOOD;
+
+ /* string options */
+ case OPT_HALFTONE_PATTERN:
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ if (s->val[option].s)
+ free (s->val[option].s);
+ s->val[option].s = strdup (val);
+ return SANE_STATUS_GOOD;
+
+ case OPT_MODE:
+ status = mode_update (s, val);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ if (s->val[option].s)
+ free (s->val[option].s);
+ s->val[option].s = strdup (val);
+
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS | SANE_INFO_RELOAD_PARAMS;
+ return SANE_STATUS_GOOD;
+ } /* End of switch */
+ } /* End of SET_VALUE */
+ return SANE_STATUS_INVAL;
+}
+
+SANE_Status
+sane_get_parameters (SANE_Handle handle, SANE_Parameters * params)
+{
+ Abaton_Scanner *s = handle;
+
+ DBG (FLOW_CONTROL, "Entering sane_get_parameters\n");
+ calc_parameters (s);
+
+
+ if (params)
+ *params = s->params;
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+sane_start (SANE_Handle handle)
+{
+ Abaton_Scanner *s = handle;
+ SANE_Status status;
+
+ /* First make sure we have a current parameter set. Some of the
+ parameters will be overwritten below, but that's OK. */
+
+ calc_parameters (s);
+
+ if (s->fd < 0)
+ {
+ /* this is the first (and maybe only) pass... */
+
+ status = sanei_scsi_open (s->hw->sane.name, &s->fd, sense_handler, 0);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (ERROR_MESSAGE, "open: open of %s failed: %s\n",
+ s->hw->sane.name, sane_strstatus (status));
+ return status;
+ }
+ }
+
+ status = wait_ready (s->fd);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (ERROR_MESSAGE, "open: wait_ready() failed: %s\n",
+ sane_strstatus (status));
+ goto stop_scanner_and_return;
+ }
+
+ status = request_sense (s);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (ERROR_MESSAGE, "sane_start: request_sense revealed error: %s\n",
+ sane_strstatus (status));
+ goto stop_scanner_and_return;
+ }
+
+ status = set_window (s);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (ERROR_MESSAGE, "open: set scan area command failed: %s\n",
+ sane_strstatus (status));
+ goto stop_scanner_and_return;
+ }
+
+ s->scanning = SANE_TRUE;
+ s->AbortedByUser = SANE_FALSE;
+
+ status = start_scan (s);
+ if (status != SANE_STATUS_GOOD)
+ goto stop_scanner_and_return;
+
+ return SANE_STATUS_GOOD;
+
+stop_scanner_and_return:
+ s->scanning = SANE_FALSE;
+ s->AbortedByUser = SANE_FALSE;
+ return status;
+}
+
+SANE_Status
+sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len,
+ SANE_Int * len)
+{
+ Abaton_Scanner *s = handle;
+ SANE_Status status;
+
+ uint8_t get_data_status[10];
+ uint8_t read[10];
+
+ uint8_t result[12];
+ size_t size;
+ SANE_Int data_av = 0;
+ SANE_Int data_length = 0;
+ SANE_Int offset = 0;
+ SANE_Int rread = 0;
+ SANE_Bool Pseudo8bit = SANE_FALSE;
+
+
+ *len = 0;
+
+ /* don't let bogus read requests reach the scanner */
+ /* this is a sub-optimal way of doing this, I'm sure */
+ if (!s->scanning)
+ return SANE_STATUS_EOF;
+
+ if (!strcmp (s->val[OPT_MODE].s, "Gray16"))
+ Pseudo8bit = SANE_TRUE;
+
+ memset (get_data_status, 0, sizeof (get_data_status));
+ get_data_status[0] = GET_DATA_STATUS;
+ /* This means "block" for Apple scanners, it seems to be the same
+ for Abaton. The scanner will do non-blocking I/O, but I don't
+ want to go there right now. */
+ get_data_status[1] = 1;
+ STORE8 (get_data_status + 8, sizeof (result));
+
+ memset (read, 0, sizeof (read));
+ read[0] = READ_10;
+
+ do
+ {
+ size = sizeof (result);
+ /* this isn't necessary */
+ /* memset (result, 0, size); */
+ status = sanei_scsi_cmd (s->fd, get_data_status,
+ sizeof (get_data_status), result, &size);
+
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ if (!size)
+ {
+ DBG (ERROR_MESSAGE, "sane_read: cannot get_data_status.\n");
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ /* this is not an accurate name, but oh well... */
+ data_length = GET24 (result);
+ data_av = GET24 (result + 9);
+
+ /* don't check result[3] here, because that screws things up
+ somewhat */
+ if (data_length) {
+ DBG (IO_MESSAGE,
+ "sane_read: (status) Available in scanner buffer %u.\n",
+ data_av);
+
+ if (Pseudo8bit)
+ {
+ if ((data_av * 2) + offset > max_len)
+ rread = (max_len - offset) / 2;
+ else
+ rread = data_av;
+ }
+ else if (data_av + offset > max_len)
+ {
+ rread = max_len - offset;
+ }
+ else
+ {
+ rread = data_av;
+ }
+
+ DBG (IO_MESSAGE,
+ "sane_read: (action) Actual read request for %u bytes.\n",
+ rread);
+
+ size = rread;
+
+ STORE24 (read + 6, rread);
+
+ status = sanei_scsi_cmd (s->fd, read, sizeof (read),
+ buf + offset, &size);
+
+ if (Pseudo8bit)
+ {
+ SANE_Int byte;
+ SANE_Int pos = offset + (rread << 1) - 1;
+ SANE_Byte B;
+ for (byte = offset + rread - 1; byte >= offset; byte--)
+ {
+ B = buf[byte];
+ /* don't invert these! */
+ buf[pos--] = B << 4; /* low (right) nibble */
+ buf[pos--] = B & 0xF0; /* high (left) nibble */
+ }
+ /* putting an end to bitop abuse here */
+ offset += size * 2;
+ }
+ else
+ offset += size;
+
+ DBG (IO_MESSAGE, "sane_read: Buffer %u of %u full %g%%\n",
+ offset, max_len, (double) (offset * 100. / max_len));
+ }
+ }
+ while (offset < max_len && data_length != 0 && !s->AbortedByUser);
+
+ if (s->AbortedByUser)
+ {
+ s->scanning = SANE_FALSE;
+
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (ERROR_MESSAGE, "sane_read: request_sense revealed error: %s\n",
+ sane_strstatus (status));
+ return status;
+ }
+
+ status = sanei_scsi_cmd (s->fd, test_unit_ready,
+ sizeof (test_unit_ready), 0, 0);
+ if (status != SANE_STATUS_GOOD || status != SANE_STATUS_INVAL)
+ return status;
+ return SANE_STATUS_CANCELLED;
+ }
+
+ if (!data_length)
+ {
+ s->scanning = SANE_FALSE;
+ DBG (IO_MESSAGE, "sane_read: (status) No more data...");
+ if (!offset)
+ {
+ /* this shouldn't happen */
+ *len = 0;
+ DBG (IO_MESSAGE, "EOF\n");
+ return SANE_STATUS_EOF;
+ }
+ else
+ {
+ *len = offset;
+ DBG (IO_MESSAGE, "GOOD\n");
+ return SANE_STATUS_GOOD;
+ }
+ }
+
+
+ DBG (FLOW_CONTROL,
+ "sane_read: Normal Exiting, Aborted=%u, data_length=%u\n",
+ s->AbortedByUser, data_av);
+ *len = offset;
+
+ return SANE_STATUS_GOOD;
+}
+
+void
+sane_cancel (SANE_Handle handle)
+{
+ Abaton_Scanner *s = handle;
+
+ if (s->scanning)
+ {
+ if (s->AbortedByUser)
+ {
+ DBG (FLOW_CONTROL,
+ "sane_cancel: Already Aborted. Please Wait...\n");
+ }
+ else
+ {
+ s->scanning = SANE_FALSE;
+ s->AbortedByUser = SANE_TRUE;
+ DBG (FLOW_CONTROL, "sane_cancel: Signal Caught! Aborting...\n");
+ }
+ }
+ else
+ {
+ if (s->AbortedByUser)
+ {
+ DBG (FLOW_CONTROL, "sane_cancel: Scan has not been initiated yet."
+ "we probably recieved a signal while writing data.\n");
+ s->AbortedByUser = SANE_FALSE;
+ }
+ else
+ {
+ DBG (FLOW_CONTROL, "sane_cancel: Scan has not been initiated "
+ "yet (or it's over).\n");
+ }
+ }
+
+ return;
+}
+
+SANE_Status
+sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
+{
+ handle = handle; /* silence gcc */
+ non_blocking = non_blocking; /* silence gcc */
+
+ DBG (FLOW_CONTROL, "sane_set_io_mode: Don't call me please. "
+ "Unimplemented function\n");
+ return SANE_STATUS_UNSUPPORTED;
+}
+
+SANE_Status
+sane_get_select_fd (SANE_Handle handle, SANE_Int * fd)
+{
+ handle = handle; /* silence gcc */
+ fd = fd; /* silence gcc */
+
+ DBG (FLOW_CONTROL, "sane_get_select_fd: Don't call me please. "
+ "Unimplemented function\n");
+ return SANE_STATUS_UNSUPPORTED;
+}