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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/s9036.c
Initial import of sane-backends version 1.0.24-1.2
Diffstat (limited to 'backend/s9036.c')
-rw-r--r--backend/s9036.c1341
1 files changed, 1341 insertions, 0 deletions
diff --git a/backend/s9036.c b/backend/s9036.c
new file mode 100644
index 0000000..9313622
--- /dev/null
+++ b/backend/s9036.c
@@ -0,0 +1,1341 @@
+/* sane - Scanner Access Now Easy.
+
+ This file (C) 1997 Ingo Schneider
+
+ This file is part of the SANE package.
+
+ SANE 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.
+
+ SANE 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 sane; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ This file implements a SANE backend for Siemens 9036 flatbed scanners. */
+
+#include "../include/sane/config.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+
+#ifndef PATH_MAX
+# define PATH_MAX 1024
+#endif
+
+#include "../include/sane/sane.h"
+#include "../include/sane/sanei.h"
+#include "../include/sane/sanei_config.h"
+#include "../include/sane/saneopts.h"
+#include "../include/sane/sanei_scsi.h"
+#include "s9036.h"
+
+#define BACKEND_NAME s9036
+#include "../include/sane/sanei_backend.h"
+
+
+#undef Byte
+#define Byte SANE_Byte
+
+static int num_devices;
+static S9036_Device *s9036_devices;
+
+
+/* sets loc_s bytes long value at offset loc in scsi command to value size */
+static void
+set_size (Byte * loc, int loc_s, size_t size)
+{
+ int i;
+
+ for (i = 0; i < loc_s; i++)
+ {
+ loc[loc_s - i - 1] = (size >> (i * 8)) & 0xff;
+ }
+}
+
+static long
+reserve_unit (int fd)
+{
+ const Byte scsi_reserve[] =
+ {
+ 0x16, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+ DBG (3, "reserve_unit()\n");
+ return sanei_scsi_cmd (fd, scsi_reserve, sizeof (scsi_reserve), 0, 0);
+}
+
+static long
+release_unit (int fd)
+{
+ const Byte scsi_release[] =
+ {
+ 0x17, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+ DBG (3, "release_unit()\n");
+ return sanei_scsi_cmd (fd, scsi_release, sizeof (scsi_release), 0, 0);
+}
+
+static SANE_Status
+test_ready (int fd)
+{
+ static const Byte scsi_test_ready[] =
+ {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+
+ SANE_Status status;
+ int try;
+
+ for (try = 0; try < 1000; ++try)
+ {
+ DBG (3, "test_ready: sending TEST_UNIT_READY\n");
+ status = sanei_scsi_cmd (fd, scsi_test_ready, sizeof (scsi_test_ready),
+ 0, 0);
+
+ switch (status)
+ {
+ case SANE_STATUS_DEVICE_BUSY:
+ usleep (100000); /* retry after 100ms */
+ break;
+
+ case SANE_STATUS_GOOD:
+ return status;
+
+ default:
+ DBG (1, "test_ready: test unit ready failed (%s)\n",
+ sane_strstatus (status));
+ return status;
+ }
+ }
+
+ DBG (1, "test_ready: timed out after %d attempts\n", try);
+ return SANE_STATUS_IO_ERROR;
+}
+
+static SANE_Status
+sense_handler (int scsi_fd, u_char *result, void *arg)
+{
+ scsi_fd = scsi_fd;
+ arg = arg; /* silence compilation warnings */
+
+ if (result[0])
+ {
+ DBG (0, "sense_handler() : sense code = %02x\n", result[0]);
+ return SANE_STATUS_IO_ERROR;
+ }
+ else
+ {
+ return SANE_STATUS_GOOD;
+ }
+}
+
+static SANE_Status
+stop_scan (int fd)
+{
+ fd = fd; /* silence compilation warnings */
+
+ /* XXX don't know how to stop the scanner. To be tested ! */
+#if 0
+ const Byte scsi_rewind[] =
+ {
+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
+ DBG (1, "Trying to stop scanner...\n");
+ return sanei_scsi_cmd (fd, scsi_rewind, sizeof (scsi_rewind), 0, 0);
+#else
+ return SANE_STATUS_GOOD;
+#endif
+}
+
+
+static SANE_Status
+start_scan (int fd, SANE_Bool cont)
+{
+ struct
+ {
+ /* Command */
+ Byte cmd;
+ Byte lun;
+ Byte res[2];
+ Byte tr_len;
+ Byte ctrl;
+
+ /* Data */
+ Byte wid;
+ }
+ scsi_start_scan;
+
+ memset (&scsi_start_scan, 0, sizeof (scsi_start_scan));
+ scsi_start_scan.cmd = 0x1b;
+ scsi_start_scan.tr_len = 1;
+ scsi_start_scan.wid = 0;
+ scsi_start_scan.ctrl = (cont == SANE_TRUE) ? 0x80 : 0x00;
+
+ DBG (1, "Starting scanner ...\n");
+ return sanei_scsi_cmd (fd, &scsi_start_scan, sizeof (scsi_start_scan), 0, 0);
+}
+
+static void
+wait_ready (int fd)
+{
+# define WAIT_READY_READ_SIZE 4
+ const Byte scsi_read[] =
+ {
+ 0x28, 0x00, /* opcode, lun */
+ 0x80, /* data type 80 == read time left */
+ 0x00, 0x00, 0x00, /* reserved */
+ 0x00, 0x00, WAIT_READY_READ_SIZE, /* transfer length */
+ 0x00, /* control byte */
+ };
+
+ Byte result[WAIT_READY_READ_SIZE];
+ size_t size = WAIT_READY_READ_SIZE;
+ SANE_Status status;
+
+ while (1)
+ {
+ status = sanei_scsi_cmd (fd, scsi_read, sizeof (scsi_read),
+ result, &size);
+
+ if (status != SANE_STATUS_GOOD || size != WAIT_READY_READ_SIZE)
+ {
+ /*
+ Command failed, the assembler code of the windows scan library
+ ignores this condition, and so do I
+ */
+ break;
+ }
+ else
+ {
+ /* left is the amount of seconds left till the scanner is
+ ready * 100 */
+ int left = result[2] * 256 + result[3];
+
+ DBG (1, "wait_ready() : %d left...\n", left);
+
+ if (!left)
+ break;
+ /* We delay only for half the given time */
+ else if (left < 200)
+ usleep (left * 5000);
+ else
+ sleep (left / 200);
+ }
+ }
+
+ return;
+}
+
+static SANE_Status
+get_read_sizes (int fd, int *lines_available, int *bpl, int *total_lines)
+{
+# define GET_READ_SIZES_READ_SIZE 24
+
+ const Byte scsi_read[] =
+ {
+ 0x28, 0x00, /* opcode, lun */
+ 0x81, /* data type 81 == read time left */
+ 0x00, 0x00, 0x00, /* reserved */
+ 0x00, 0x00, GET_READ_SIZES_READ_SIZE, /* transfer length */
+ 0x00, /* control byte */
+ };
+
+ Byte result[GET_READ_SIZES_READ_SIZE];
+ size_t size = GET_READ_SIZES_READ_SIZE;
+ SANE_Status status;
+
+ status = sanei_scsi_cmd (fd, scsi_read, sizeof (scsi_read), result, &size);
+
+ if (status != SANE_STATUS_GOOD || size != GET_READ_SIZES_READ_SIZE)
+ {
+ /* Command failed */
+ return SANE_STATUS_IO_ERROR;
+ }
+ else
+ {
+ *lines_available = result[14] * 256 + result[15];
+ *bpl = result[12] * 256 + result[13];
+ if (total_lines)
+ *total_lines = result[10] * 256 + result[11];
+ }
+
+ DBG (1, "get_read_sizes() : %d of %d, %d\n",
+ *lines_available, total_lines ? *total_lines : -1, *bpl);
+
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+set_window (S9036_Scanner * s)
+/* This function sets and sends the window for scanning */
+{
+ double pixels_per_mm = (double) s->val[OPT_RESOLUTION] / MM_PER_INCH;
+
+ SANE_Bool auto_bright = !(s->opt[OPT_BRIGHT_ADJUST].cap & SANE_CAP_INACTIVE);
+ SANE_Bool auto_contr = !(s->opt[OPT_CONTR_ADJUST].cap & SANE_CAP_INACTIVE);
+
+ /* ranges down 255 (dark) down to 1(bright) */
+ int brightness = auto_bright ? 0 : (SANE_UNFIX (s->val[OPT_BRIGHTNESS])
+ * -1.27 + 128.5);
+ /* ranges from 1 (little contrast) up to 255 (much contrast) */
+ int contrast = auto_contr ? 0 : (SANE_UNFIX (s->val[OPT_CONTRAST])
+ * 1.27 + 128.5);
+
+ /* ranges from 40 (dark) down to 0 (bright) */
+ int bright_adjust = auto_bright ? 20 - s->val[OPT_BRIGHT_ADJUST] : 0;
+ /* ranges from 20 (little contrast) down to -20 = 235 (much contrast) */
+ int contr_adjust = auto_contr ? (256 - s->val[OPT_CONTR_ADJUST]) % 256 : 0;
+
+ /* Warning ! The following structur SEEMS to be an valid SCSI-2
+ SET_WINDOW command. But e.g. the limits for the window are only
+ 2 Bytes instead of 4. The scanner was built at about 1990, so
+ SCSI-2 wasn't available for development...
+ */
+
+ struct
+ {
+ Byte cmd;
+ Byte lun;
+ Byte re1[4];
+ Byte tr_len[3];
+ Byte ctrl;
+
+ Byte re2[6];
+ Byte wd_len[2];
+
+ struct
+ {
+ Byte wid;
+ Byte autobit;
+ Byte x_axis_res[2];
+ Byte y_axis_res[2];
+
+ Byte x_axis_ul[2];
+ Byte y_axis_ul[2];
+
+ Byte wwidth[2];
+ Byte wlength[2];
+
+ Byte contrast;
+ Byte threshold;
+ Byte brightness;
+
+ Byte image_comp;
+ Byte bpp;
+
+ Byte ht_pattern;
+ Byte rif_padding;
+ Byte three;
+
+ Byte null1[2];
+ Byte null2[8];
+
+ Byte null_eins;
+ Byte eins_null;
+
+ Byte contr_adjust;
+ Byte bright_adjust;
+
+ Byte null3;
+
+ }
+ wd;
+
+ }
+ cmd;
+
+ DBG (3,
+ "Setting parameters: bpp %d, res %d, bri %d, con %d, bad %d, cad %d\n",
+ s->val[OPT_DEPTH], s->val[OPT_RESOLUTION],
+ brightness, contrast, bright_adjust, contr_adjust);
+
+ memset (&cmd, 0, sizeof (cmd));
+
+ /* Commands and sizes. Original comment in German: Kommando und Groessen. */
+ cmd.cmd = 0x24;
+ set_size (cmd.tr_len, 3, 37 + 8);
+ set_size (cmd.wd_len, 2, 37);
+
+ /* Resolution. Original comment in German: Aufloesung */
+ set_size (cmd.wd.x_axis_res, 2, s->val[OPT_RESOLUTION]);
+ set_size (cmd.wd.y_axis_res, 2, s->val[OPT_RESOLUTION]);
+
+ /* Scan window position/size. Original comment in German:
+ Fensterposition / Groesse */
+ set_size (cmd.wd.x_axis_ul, 2,
+ SANE_UNFIX (s->val[OPT_TL_X]) * pixels_per_mm + 0.5);
+ set_size (cmd.wd.y_axis_ul, 2,
+ SANE_UNFIX (s->val[OPT_TL_Y]) * pixels_per_mm + 0.5);
+ set_size (cmd.wd.wwidth, 2, SANE_UNFIX (s->val[OPT_BR_X] - s->val[OPT_TL_X])
+ * pixels_per_mm + 0.5);
+ set_size (cmd.wd.wlength, 2, SANE_UNFIX (s->val[OPT_BR_Y] - s->val[OPT_TL_Y])
+ * pixels_per_mm + 0.5);
+
+ cmd.wd.contrast = contrast;
+ cmd.wd.threshold = 0x00;
+ cmd.wd.brightness = brightness;
+
+ cmd.wd.image_comp = (s->val[OPT_DEPTH] == 1) ? 0 : 2;
+ cmd.wd.bpp = s->val[OPT_DEPTH];
+
+ cmd.wd.ht_pattern = 0;
+ cmd.wd.rif_padding = 0x00;
+ cmd.wd.three = 3;
+
+ cmd.wd.null_eins = (s->val[OPT_DEPTH] == 1) ? 0 : 1;
+ cmd.wd.eins_null = (s->val[OPT_DEPTH] == 1) ? 1 : 0;
+
+ cmd.wd.contr_adjust = contr_adjust;
+ cmd.wd.bright_adjust = bright_adjust;
+
+ return sanei_scsi_cmd (s->fd, &cmd, sizeof (cmd), 0, 0);
+}
+
+/* Tell scanner to scan more data. Original comment in German:
+ Fordert Scanner auf, weiter zu scannen... */
+static SANE_Status
+request_more_data (S9036_Scanner * s)
+{
+ SANE_Status status;
+ int lines_available;
+ int bytes_per_line;
+
+ status = start_scan (s->fd, SANE_TRUE);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ wait_ready (s->fd);
+
+ status = get_read_sizes (s->fd, &lines_available, &bytes_per_line, 0);
+
+ if (!lines_available || bytes_per_line != s->params.bytes_per_line)
+ {
+ return SANE_STATUS_INVAL;
+ }
+
+ if (s->lines_read + lines_available > s->params.lines)
+ return SANE_STATUS_INVAL;
+
+ s->lines_in_scanner = lines_available;
+
+ return SANE_STATUS_GOOD;
+}
+
+/* May only be called when there is at least one row of data to
+ be read.
+
+ Original comment in German: Darf nur aufgerufen werden, wenn
+ wirklich noch Zeilen zu scannen/lesen sind ! */
+static SANE_Status
+read_more_data (S9036_Scanner * s)
+{
+
+ static Byte cmd[] =
+ {
+ 0x28, 0x00, /* opcode, lun */
+ 0x00, /* data type 80 == read time left */
+ 0x00, 0x00, 0x00, /* reserved */
+ 0x00, 0x00, 0x00, /* transfer length */
+ 0x00, /* control byte */
+ };
+
+ SANE_Status status;
+ size_t size;
+ int lines_read;
+ int bpl = s->params.bytes_per_line;
+ unsigned int i;
+
+ if (s->lines_in_scanner == 0)
+ {
+ /* No lines in scanner ? scan some more */
+ status = request_more_data (s);
+
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ }
+
+ /* We try this 3 times */
+ while (1)
+ {
+
+ /* Request as much lines as would fit into the buffer ... */
+ lines_read = s->bufsize / bpl;
+
+ /* buffer is too small for one line: we can't handle this */
+ if (!lines_read)
+ return SANE_STATUS_INVAL;
+
+ /* We only request as many lines as there are already scanned */
+ if (lines_read > s->lines_in_scanner)
+ lines_read = s->lines_in_scanner;
+
+ set_size (&cmd[6], 3, lines_read);
+ size = lines_read * s->params.bytes_per_line;
+
+ DBG (1, "Requesting %d lines, in scanner: %d, total: %d\n", lines_read,
+ s->lines_in_scanner, s->params.lines);
+
+ status = sanei_scsi_cmd (s->fd, cmd, sizeof (cmd), s->buffer, &size);
+
+ if (status != SANE_STATUS_GOOD)
+ {
+ if (s->bufsize > 4096)
+ {
+ DBG (1, "sanei_scsi_cmd(): using 4k buffer\n");
+ s->bufsize = 4096;
+ continue;
+ }
+
+ DBG (1, "sanei_scsi_cmd() = %d\n", status);
+ return SANE_STATUS_IO_ERROR;
+ }
+
+ if (size != (unsigned int) lines_read * s->params.bytes_per_line)
+ {
+ DBG (1, "sanei_scsi_cmd(): got %lu bytes, expected %d\n",
+ (u_long) size, lines_read * s->params.bytes_per_line);
+ return SANE_STATUS_INVAL;
+ }
+
+ DBG (1, "Got %lu bytes\n", (u_long) size);
+ break;
+ }
+
+
+ /* Reverse: */
+ if (s->params.depth != 1)
+ for (i = 0; i < size; i++)
+ s->buffer[i] = (255 - s->buffer[i]);
+
+ s->in_buffer += size;
+ s->lines_in_scanner -= lines_read;
+ s->lines_read += lines_read;
+
+ return SANE_STATUS_GOOD;
+}
+
+
+static SANE_Status
+attach (const char *devname, S9036_Device ** devp)
+{
+#define ATTACH_SCSI_INQ_LEN 55
+ const Byte scsi_inquiry[] =
+ {
+ 0x12, 0x00, 0x00, 0x00, ATTACH_SCSI_INQ_LEN, 0x00
+ };
+ Byte result[ATTACH_SCSI_INQ_LEN];
+
+ int fd;
+ S9036_Device *dev;
+ SANE_Status status;
+ size_t size;
+ int i;
+
+ for (dev = s9036_devices; dev; dev = dev->next)
+ if (strcmp (dev->sane.name, devname) == 0)
+ {
+ if (devp)
+ *devp = dev;
+ return SANE_STATUS_GOOD;
+ }
+
+ DBG (3, "attach: opening %s\n", devname);
+ status = sanei_scsi_open (devname, &fd, sense_handler, 0);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "attach: open failed (%s)\n", sane_strstatus (status));
+ return SANE_STATUS_INVAL;
+ }
+
+ DBG (3, "attach: sending INQUIRY\n");
+ size = sizeof (result);
+ status = sanei_scsi_cmd (fd, scsi_inquiry, sizeof (scsi_inquiry),
+ result, &size);
+ if (status != SANE_STATUS_GOOD || size != ATTACH_SCSI_INQ_LEN)
+ {
+ DBG (1, "attach: inquiry failed (%s)\n", sane_strstatus (status));
+ sanei_scsi_close (fd);
+ return status;
+ }
+
+ status = test_ready (fd);
+ sanei_scsi_close (fd);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ /* The structure send by the scanner after inquiry is not SCSI-2
+ compatible. The standard manufacturer/model fields are no ASCII
+ strings, but ? At offset 36 my SIEMENS scanner identifies as an
+ AGFA one ?! */
+
+ if (result[0] != 6 || strncmp ((char *)result + 36, "AGFA03", 6))
+ {
+ DBG (1, "attach: device doesn't look like a Siemens 9036 scanner\n");
+ return SANE_STATUS_INVAL;
+ }
+
+ DBG (3, "Inquiry data:\n");
+ for (i = 5; i < 55; i += 10)
+ DBG (3, "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
+ result[i], result[i + 1], result[i + 2], result[i + 3], result[i + 4],
+ result[i + 5], result[i + 6], result[i + 7], result[i + 8],
+ result[i + 9]);
+
+ dev = malloc (sizeof (*dev));
+
+ if (!dev)
+ return SANE_STATUS_NO_MEM;
+
+ memset (dev, 0, sizeof (*dev));
+
+ dev->sane.name = strdup (devname);
+ dev->sane.vendor = "Siemens";
+ dev->sane.model = "9036";
+ dev->sane.type = "flatbed scanner";
+
+ dev->handle = 0;
+
+ DBG (3, "attach: found S9036 scanner model\n");
+
+ ++num_devices;
+ dev->next = s9036_devices;
+ s9036_devices = dev;
+
+ if (devp)
+ *devp = dev;
+
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+do_cancel (S9036_Scanner * s)
+{
+ s->scanning = SANE_FALSE;
+
+ if (s->fd >= 0)
+ {
+ stop_scan (s->fd);
+ release_unit (s->fd);
+ sanei_scsi_close (s->fd);
+ s->fd = -1;
+ }
+
+ if (s->buffer)
+ {
+ free (s->buffer);
+ s->buffer = 0;
+ }
+
+ return SANE_STATUS_CANCELLED;
+}
+
+
+static SANE_Status
+init_options (S9036_Scanner * s)
+{
+ int i;
+
+ /* Hardware Limitations: must be static ! */
+ static const SANE_Int depth_list[] =
+ {2, 1, 8};
+
+ static const SANE_Int dpi_list[] =
+ {8, 100, 200, 300, 400, 500, 600, 700, 800};
+
+ static const SANE_Range percentage_range =
+ {
+ -100 << SANE_FIXED_SCALE_SHIFT, /* minimum */
+ 100 << SANE_FIXED_SCALE_SHIFT, /* maximum */
+ 1 << SANE_FIXED_SCALE_SHIFT /* quantization */
+ };
+
+ static const SANE_Range automatic_adjust_range =
+ {-20, 20, 1};
+
+ static const SANE_Range x_range =
+ {0, SANE_FIX (8.27 * MM_PER_INCH), 0};
+ static const SANE_Range y_range =
+ {0, SANE_FIX (12.72 * MM_PER_INCH), 0};
+
+ /* ------ */
+
+ 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] = 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;
+
+ /* depth */
+ s->opt[OPT_DEPTH].name = SANE_NAME_BIT_DEPTH;
+ s->opt[OPT_DEPTH].title = SANE_TITLE_BIT_DEPTH;
+ s->opt[OPT_DEPTH].desc = SANE_DESC_BIT_DEPTH;
+ s->opt[OPT_DEPTH].type = SANE_TYPE_INT;
+ s->opt[OPT_DEPTH].unit = SANE_UNIT_BIT;
+ s->opt[OPT_DEPTH].constraint_type = SANE_CONSTRAINT_WORD_LIST;
+ s->opt[OPT_DEPTH].constraint.word_list = depth_list;
+ s->val[OPT_DEPTH] = 1;
+
+ /* resolution */
+ s->opt[OPT_RESOLUTION].name = SANE_NAME_SCAN_RESOLUTION;
+ s->opt[OPT_RESOLUTION].title = SANE_TITLE_SCAN_RESOLUTION;
+ s->opt[OPT_RESOLUTION].desc = SANE_DESC_SCAN_RESOLUTION;
+ s->opt[OPT_RESOLUTION].type = SANE_TYPE_INT;
+ s->opt[OPT_RESOLUTION].unit = SANE_UNIT_DPI;
+ s->opt[OPT_RESOLUTION].constraint_type = SANE_CONSTRAINT_WORD_LIST;
+ s->opt[OPT_RESOLUTION].constraint.word_list = dpi_list;
+ s->val[OPT_RESOLUTION] = 100;
+
+ /* "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_FIXED;
+ 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] = 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_FIXED;
+ 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] = 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_FIXED;
+ 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] = 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_FIXED;
+ 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] = 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_FIXED;
+ s->opt[OPT_BRIGHTNESS].cap |= SANE_CAP_AUTOMATIC;
+ s->opt[OPT_BRIGHTNESS].unit = SANE_UNIT_PERCENT;
+ s->opt[OPT_BRIGHTNESS].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_BRIGHTNESS].constraint.range = &percentage_range;
+ s->val[OPT_BRIGHTNESS] = 0;
+
+ /* 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_FIXED;
+ s->opt[OPT_CONTRAST].cap |= SANE_CAP_AUTOMATIC;
+ s->opt[OPT_CONTRAST].unit = SANE_UNIT_PERCENT;
+ s->opt[OPT_CONTRAST].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_CONTRAST].constraint.range = &percentage_range;
+ s->val[OPT_CONTRAST] = 0;
+
+ /* brightness automatic correct */
+ s->opt[OPT_BRIGHT_ADJUST].name = "adjust-bright";
+ s->opt[OPT_BRIGHT_ADJUST].title = "Automatic brightness adjust";
+ s->opt[OPT_BRIGHT_ADJUST].desc = "Controls the automatic brightness of the "
+ "acquired image. This option is active for automatic brightness only.";
+ s->opt[OPT_BRIGHT_ADJUST].type = SANE_TYPE_INT;
+ s->opt[OPT_BRIGHT_ADJUST].cap |= SANE_CAP_INACTIVE;
+ s->opt[OPT_BRIGHT_ADJUST].unit = SANE_UNIT_NONE;
+ s->opt[OPT_BRIGHT_ADJUST].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_BRIGHT_ADJUST].constraint.range = &automatic_adjust_range;
+ s->val[OPT_BRIGHT_ADJUST] = 0;
+
+ /* contrast automatic correct */
+ s->opt[OPT_CONTR_ADJUST].name = "adjust-contr";
+ s->opt[OPT_CONTR_ADJUST].title = "Automatic contrast adjust";
+ s->opt[OPT_CONTR_ADJUST].desc = "Controls the automatic contrast of the "
+ " acquired image. This option is active for automatic contrast only.";
+ s->opt[OPT_CONTR_ADJUST].type = SANE_TYPE_INT;
+ s->opt[OPT_CONTR_ADJUST].cap |= SANE_CAP_INACTIVE;
+ s->opt[OPT_CONTR_ADJUST].unit = SANE_UNIT_NONE;
+ s->opt[OPT_CONTR_ADJUST].constraint_type = SANE_CONSTRAINT_RANGE;
+ s->opt[OPT_CONTR_ADJUST].constraint.range = &automatic_adjust_range;
+ s->val[OPT_CONTR_ADJUST] = 0;
+
+ return SANE_STATUS_GOOD;
+}
+
+static SANE_Status
+attach_one (const char *dev)
+{
+ attach (dev, 0);
+ 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 compilation warnings */
+
+ DBG_INIT ();
+
+ if (version_code)
+ *version_code = SANE_VERSION_CODE (SANE_CURRENT_MAJOR, V_MINOR, 0);
+
+ fp = sanei_config_open ("s9036.conf");
+ if (!fp)
+ {
+ /* default to /dev/scanner instead of insisting on config file */
+ attach ("/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);
+ }
+ fclose (fp);
+ return SANE_STATUS_GOOD;
+}
+
+void
+sane_exit (void)
+{
+ S9036_Device *dev, *next;
+
+ for (dev = s9036_devices; dev; dev = next)
+ {
+ next = dev->next;
+ if (dev->handle)
+ sane_close (dev->handle);
+ free (dev);
+ }
+}
+
+SANE_Status
+sane_get_devices (const SANE_Device *** device_list, SANE_Bool local_only)
+{
+ static const SANE_Device **devlist = 0;
+ S9036_Device *dev;
+ int i;
+
+ local_only = local_only; /* silence compilation warnings */
+
+ if (devlist)
+ free (devlist);
+
+ devlist = malloc ((num_devices + 1) * sizeof (devlist[0]));
+ if (!devlist)
+ return SANE_STATUS_NO_MEM;
+
+ for (dev = s9036_devices, i = 0; 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)
+{
+ S9036_Device *dev;
+ SANE_Status status;
+ S9036_Scanner *s;
+
+ if (devicename[0])
+ {
+ status = attach (devicename, &dev);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+ }
+ else
+ {
+ /* empty devicname -> use first device */
+ dev = s9036_devices;
+ }
+
+ if (!dev)
+ return SANE_STATUS_INVAL;
+
+ if (dev->handle)
+ return SANE_STATUS_DEVICE_BUSY;
+
+ s = malloc (sizeof (*s));
+ if (!s)
+ return SANE_STATUS_NO_MEM;
+
+ memset (s, 0, sizeof (*s));
+ s->scanning = SANE_FALSE;
+ s->fd = -1;
+ s->hw = dev;
+ s->hw->handle = s;
+
+ init_options (s);
+
+ *handle = s;
+ return SANE_STATUS_GOOD;
+}
+
+void
+sane_close (SANE_Handle handle)
+{
+ S9036_Scanner *s = handle;
+
+ if (s->scanning)
+ do_cancel (handle);
+
+ s->hw->handle = 0;
+
+ free (handle);
+}
+
+const SANE_Option_Descriptor *
+sane_get_option_descriptor (SANE_Handle handle, SANE_Int option)
+{
+ S9036_Scanner *s = handle;
+
+ if ((unsigned) option >= NUM_OPTIONS)
+ return 0;
+ return s->opt + option;
+}
+
+SANE_Status
+sane_control_option (SANE_Handle handle, SANE_Int option,
+ SANE_Action action, void *val, SANE_Int * info)
+{
+ S9036_Scanner *s = handle;
+ SANE_Status status;
+
+ if (info)
+ *info = 0;
+
+ if (s->scanning)
+ return SANE_STATUS_DEVICE_BUSY;
+
+ if (option >= NUM_OPTIONS || !SANE_OPTION_IS_ACTIVE (s->opt[option].cap))
+ return SANE_STATUS_UNSUPPORTED;
+
+ if (action == SANE_ACTION_GET_VALUE)
+ {
+
+ switch (option)
+ {
+ case OPT_DEPTH:
+ case OPT_RESOLUTION:
+ case OPT_TL_X:
+ case OPT_TL_Y:
+ case OPT_BR_X:
+ case OPT_BR_Y:
+ case OPT_NUM_OPTS:
+ case OPT_BRIGHTNESS:
+ case OPT_CONTRAST:
+ case OPT_BRIGHT_ADJUST:
+ case OPT_CONTR_ADJUST:
+ *(SANE_Word *) val = s->val[option];
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ }
+ else if (action == SANE_ACTION_SET_VALUE)
+ {
+
+ if (!SANE_OPTION_IS_SETTABLE (s->opt[option].cap))
+ return SANE_STATUS_UNSUPPORTED;
+
+ status = sanei_constrain_value (s->opt + option, val, info);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ switch (option)
+ {
+ case OPT_DEPTH:
+ case OPT_RESOLUTION:
+ case OPT_TL_X:
+ case OPT_TL_Y:
+ case OPT_BR_X:
+ case OPT_BR_Y:
+ if (info)
+ *info |= SANE_INFO_RELOAD_PARAMS;
+ case OPT_BRIGHT_ADJUST:
+ case OPT_CONTR_ADJUST:
+ s->val[option] = *(SANE_Word *) val;
+ break;
+ case OPT_BRIGHTNESS:
+ if (SANE_OPTION_IS_ACTIVE (s->opt[OPT_BRIGHT_ADJUST].cap))
+ {
+ s->opt[OPT_BRIGHT_ADJUST].cap |= SANE_CAP_INACTIVE;
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ }
+ s->val[option] = *(SANE_Word *) val;
+ break;
+ case OPT_CONTRAST:
+ if (SANE_OPTION_IS_ACTIVE (s->opt[OPT_CONTR_ADJUST].cap))
+ {
+ s->opt[OPT_CONTR_ADJUST].cap |= SANE_CAP_INACTIVE;
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ }
+ s->val[option] = *(SANE_Word *) val;
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ }
+ else if (action == SANE_ACTION_SET_AUTO)
+ {
+
+ if (!SANE_OPTION_IS_SETTABLE (s->opt[option].cap))
+ return SANE_STATUS_UNSUPPORTED;
+
+ switch (option)
+ {
+ case OPT_BRIGHTNESS:
+ if (!SANE_OPTION_IS_ACTIVE (s->opt[OPT_BRIGHT_ADJUST].cap))
+ {
+ s->opt[OPT_BRIGHT_ADJUST].cap &= ~SANE_CAP_INACTIVE;
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ }
+ break;
+ case OPT_CONTRAST:
+ if (!SANE_OPTION_IS_ACTIVE (s->opt[OPT_CONTR_ADJUST].cap))
+ {
+ s->opt[OPT_CONTR_ADJUST].cap &= ~SANE_CAP_INACTIVE;
+ if (info)
+ *info |= SANE_INFO_RELOAD_OPTIONS;
+ }
+ break;
+ default:
+ return SANE_STATUS_UNSUPPORTED;
+ }
+
+ }
+ else
+ return SANE_STATUS_UNSUPPORTED;
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+sane_get_parameters (SANE_Handle handle, SANE_Parameters * params)
+{
+ S9036_Scanner *s = handle;
+
+ if (!s->scanning)
+ {
+ double width, height, dpi;
+
+ memset (&s->params, 0, sizeof (s->params));
+
+ s->params.format = SANE_FRAME_GRAY;
+ s->params.last_frame = SANE_TRUE;
+
+ s->params.depth = s->val[OPT_DEPTH];
+
+ width = SANE_UNFIX (s->val[OPT_BR_X] - s->val[OPT_TL_X]);
+ height = SANE_UNFIX (s->val[OPT_BR_Y] - s->val[OPT_TL_Y]);
+ dpi = s->val[OPT_RESOLUTION];
+
+ /* make best-effort guess at what parameters will look like once
+ scanning starts. */
+ if (dpi > 0.0 && width > 0.0 && height > 0.0)
+ {
+ double dots_per_mm = dpi / MM_PER_INCH;
+
+ s->params.pixels_per_line = width * dots_per_mm + 0.5;
+ s->params.lines = height * dots_per_mm + 0.5;
+ }
+
+ s->params.bytes_per_line =
+ (s->params.pixels_per_line + (8 - s->params.depth))
+ / (8 / s->params.depth);
+ }
+
+ if (params)
+ *params = s->params;
+ return SANE_STATUS_GOOD;
+}
+
+SANE_Status
+sane_start (SANE_Handle handle)
+{
+ S9036_Scanner *s = handle;
+ SANE_Status status;
+
+ if (s->scanning)
+ do_cancel (s);
+
+ /* First make sure we have a current parameter set. Some of the
+ parameters will be overwritten below, but that's OK. */
+ status = sane_get_parameters (s, 0);
+ if (status != SANE_STATUS_GOOD)
+ return status;
+
+ if (s->fd < 0)
+ {
+ status = sanei_scsi_open (s->hw->sane.name, &s->fd, sense_handler, 0);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "open: open of %s failed: %s\n",
+ s->hw->sane.name, sane_strstatus (status));
+ s->fd = -1;
+ return status;
+ }
+ }
+
+ status = test_ready (s->fd);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "open: test_ready() failed: %s\n", sane_strstatus (status));
+ sanei_scsi_close (s->fd);
+ s->fd = -1;
+ return status;
+ }
+
+ status = reserve_unit (s->fd);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "open: reserve_unit() failed: %s\n", sane_strstatus (status));
+ sanei_scsi_close (s->fd);
+ s->fd = -1;
+ return status;
+ }
+
+ status = set_window (s);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "open: set_window() failed: %s\n", sane_strstatus (status));
+ release_unit (s->fd);
+ sanei_scsi_close (s->fd);
+ s->fd = -1;
+ return status;
+ }
+
+ s->scanning = SANE_TRUE;
+
+ status = start_scan (s->fd, SANE_FALSE);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "open: start_scan() failed: %s\n", sane_strstatus (status));
+ do_cancel (s);
+ return status;
+ }
+
+ wait_ready (s->fd);
+
+ {
+ int lines_available = 0, bytes_per_line = 0, total_lines = 0;
+
+ status = get_read_sizes (s->fd, &lines_available, &bytes_per_line,
+ &total_lines);
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "open: get_read_sizes() failed: %s\n",
+ sane_strstatus (status));
+ do_cancel (s);
+ return status;
+ }
+
+ if (!lines_available || !bytes_per_line || !total_lines)
+ {
+ DBG (1, "open: invalid_sizes(): %d, %d, %d\n",
+ lines_available, bytes_per_line, total_lines);
+ do_cancel (s);
+ return SANE_STATUS_INVAL;
+ }
+
+ s->params.lines = total_lines;
+ s->params.bytes_per_line = bytes_per_line;
+ s->params.pixels_per_line = bytes_per_line * (8 / s->params.depth);
+
+ s->lines_in_scanner = lines_available;
+ s->lines_read = 0;
+
+ /* Buffer must be at least 4k */
+ s->bufsize = (sanei_scsi_max_request_size < 4096) ?
+ 4096 : sanei_scsi_max_request_size;
+
+ s->buffer = (Byte *) malloc (s->bufsize * sizeof (Byte));
+
+ if (!s->buffer)
+ {
+ DBG (1, "open malloc(%lu) failed.\n", (u_long) s->bufsize);
+ do_cancel (s);
+ return SANE_STATUS_NO_MEM;
+ }
+ s->bufstart = s->buffer;
+ s->in_buffer = 0;
+ }
+
+ return SANE_STATUS_GOOD;
+}
+
+static void
+copy_buffer (S9036_Scanner * s, SANE_Byte ** buf, SANE_Int * max_len,
+ SANE_Int * len)
+{
+ if (*max_len > (SANE_Int) s->in_buffer)
+ {
+ memcpy (*buf, s->bufstart, s->in_buffer);
+ *buf += s->in_buffer;
+ *len += s->in_buffer;
+ *max_len -= s->in_buffer;
+
+ s->bufstart = s->buffer;
+ s->in_buffer = 0;
+ }
+ else
+ {
+ memcpy (*buf, s->bufstart, *max_len);
+ s->bufstart += *max_len;
+ s->in_buffer -= *max_len;
+
+ *buf += *max_len;
+ *len += *max_len;
+ *max_len = 0;
+ }
+}
+
+
+SANE_Status
+sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len,
+ SANE_Int * len)
+{
+ S9036_Scanner *s = handle;
+ SANE_Status status;
+
+ if (s->scanning != SANE_TRUE || max_len == 0)
+ return SANE_STATUS_INVAL;
+
+ *len = 0;
+
+ DBG (3, "sane_read(%d) : lines_read %d\n", max_len, s->lines_read);
+
+ while (max_len > (SANE_Int) s->in_buffer && s->lines_read < s->params.lines)
+ {
+
+ if (s->in_buffer == 0)
+ {
+ status = read_more_data (s);
+
+ if (status != SANE_STATUS_GOOD)
+ {
+ DBG (1, "sane_read: read_more_data() failed (%s)\n",
+ sane_strstatus (status));
+ do_cancel (s);
+ return status;
+ }
+ }
+
+ copy_buffer (s, &buf, &max_len, len);
+
+ if (!max_len || s->lines_read >= s->params.lines)
+ return SANE_STATUS_GOOD;
+ }
+
+ /* If we reached this point, there are either enough bytes in the buffer,
+ or, if the buffer is empty, we already reached the end of the page */
+
+ if (s->in_buffer > 0)
+ {
+ copy_buffer (s, &buf, &max_len, len);
+ return SANE_STATUS_GOOD;
+ }
+ else
+ {
+ do_cancel (s);
+ DBG (1, "EOF\n");
+ return SANE_STATUS_EOF;
+ }
+}
+
+void
+sane_cancel (SANE_Handle handle)
+{
+ S9036_Scanner *s = handle;
+ do_cancel (s);
+}
+
+SANE_Status
+sane_set_io_mode (SANE_Handle handle, SANE_Bool non_blocking)
+{
+ handle = handle; /* silence compilation warnings */
+
+ DBG (1, "sane_set_io_mode(%d)\n", non_blocking);
+
+ return (non_blocking == SANE_TRUE) ?
+ SANE_STATUS_UNSUPPORTED : SANE_STATUS_GOOD;
+}
+
+SANE_Status
+sane_get_select_fd (SANE_Handle handle, SANE_Int * fd)
+{
+ handle = handle;
+ fd = fd; /* silence compilation warnings */
+
+ return SANE_STATUS_UNSUPPORTED;
+}