Initial import of sane-backends version 1.0.24-1.2

1 files changed, 281 insertions, 0 deletions

diff --git a/backend/lexmark.h b/backend/lexmark.h
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index 0000000..0790551
--- /dev/null
+++ b/backend/lexmark.h
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+/************************************************************************
+   lexmark.h - SANE library for Lexmark scanners.
+   Copyright (C) 2003-2004 Lexmark International, Inc. (original source)
+   Copyright (C) 2005 Fred Odendaal
+   Copyright (C) 2006-2010 Stéphane Voltz	<stef.dev@free.fr>
+   Copyright (C) 2010 "Torsten Houwaart" <ToHo@gmx.de> X74 support
+
+   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.
+   **************************************************************************/
+#ifndef LEXMARK_H
+#define LEXMARK_H
+
+#undef DEEP_DEBUG
+
+#include "../include/sane/config.h"
+
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <sys/time.h>
+
+#include "../include/_stdint.h"
+#include "../include/sane/sane.h"
+#include "../include/sane/sanei.h"
+#include "../include/sane/saneopts.h"
+#include "../include/sane/sanei_config.h"
+#include "../include/sane/sanei_usb.h"
+#include "../include/sane/sanei_backend.h"
+
+typedef enum
+{
+  OPT_NUM_OPTS = 0,
+  OPT_MODE,
+  OPT_RESOLUTION,
+  OPT_PREVIEW,
+  OPT_THRESHOLD,
+
+  OPT_GEOMETRY_GROUP,
+  OPT_TL_X,			/* top-left x */
+  OPT_TL_Y,			/* top-left y */
+  OPT_BR_X,			/* bottom-right x */
+  OPT_BR_Y,			/* bottom-right y */
+
+  /* manual gain handling */
+  OPT_MANUAL_GAIN,		/* 6 */
+  OPT_GRAY_GAIN,
+  OPT_RED_GAIN,
+  OPT_GREEN_GAIN,
+  OPT_BLUE_GAIN,
+
+  /* must come last: */
+  NUM_OPTIONS
+}
+Lexmark_Options;
+
+/*
+ * this struct is used to described the specific parts of each model
+ */
+typedef struct Lexmark_Model
+{
+  SANE_Int vendor_id;
+  SANE_Int product_id;
+  SANE_Byte mainboard_id;	/* matched against the content of reg B0 */
+  SANE_String_Const name;
+  SANE_String_Const vendor;
+  SANE_String_Const model;
+  SANE_Int motor_type;
+  SANE_Int sensor_type;
+  SANE_Int HomeEdgePoint1;
+  SANE_Int HomeEdgePoint2;
+} Lexmark_Model;
+
+/*
+ * this struct is used to store per sensor model constants
+ */
+typedef struct Lexmark_Sensor
+{
+  SANE_Int id;
+  SANE_Int offset_startx;	/* starting x for offset calibration */
+  SANE_Int offset_endx;		/* end x for offset calibration */
+  SANE_Int offset_threshold;	/* target threshold for offset calibration */
+  SANE_Int xoffset;		/* number of unusable pixels on the start of the sensor */
+  SANE_Int default_gain;	/* value of the default gain for a scan */
+  SANE_Int red_gain_target;
+  SANE_Int green_gain_target;
+  SANE_Int blue_gain_target;
+  SANE_Int gray_gain_target;
+  SANE_Int red_shading_target;
+  SANE_Int green_shading_target;
+  SANE_Int blue_shading_target;
+  SANE_Int gray_shading_target;
+  SANE_Int offset_fallback;	/* offset to use in case offset calibration fails */
+  SANE_Int gain_fallback;	/* gain to use in case offset calibration fails */
+} Lexmark_Sensor;
+
+typedef enum
+{
+  RED = 0,
+  GREEN,
+  BLUE
+}
+Scan_Regions;
+
+/* struct to hold pre channel settings */
+typedef struct Channels
+{
+  SANE_Word red;
+  SANE_Word green;
+  SANE_Word blue;
+  SANE_Word gray;
+}
+Channels;
+
+/** @name Option_Value union
+ * convenience union to access option values given to the backend
+ * @{
+ */
+#ifndef SANE_OPTION
+#define SANE_OPTION 1
+typedef union
+{
+  SANE_Bool b;
+  SANE_Word w;
+  SANE_Word *wa;		/* word array */
+  SANE_String s;
+}
+Option_Value;
+#endif
+/* @} */
+
+typedef struct Read_Buffer
+{
+  SANE_Int gray_offset;
+  SANE_Int max_gray_offset;
+  SANE_Int region;
+  SANE_Int red_offset;
+  SANE_Int green_offset;
+  SANE_Int blue_offset;
+  SANE_Int max_red_offset;
+  SANE_Int max_green_offset;
+  SANE_Int max_blue_offset;
+  SANE_Byte *data;
+  SANE_Byte *readptr;
+  SANE_Byte *writeptr;
+  SANE_Byte *max_writeptr;
+  size_t size;
+  size_t linesize;
+  SANE_Bool empty;
+  SANE_Int image_line_no;
+  SANE_Int bit_counter;
+  SANE_Int max_lineart_offset;
+}
+Read_Buffer;
+
+typedef struct Lexmark_Device
+{
+  struct Lexmark_Device *next;
+  SANE_Bool missing;	/**< devices has been unplugged or swtiched off */
+
+  SANE_Device sane;
+  SANE_Option_Descriptor opt[NUM_OPTIONS];
+  Option_Value val[NUM_OPTIONS];
+  SANE_Parameters params;
+  SANE_Int devnum;
+  long data_size;
+  SANE_Bool initialized;
+  SANE_Bool eof;
+  SANE_Int x_dpi;
+  SANE_Int y_dpi;
+  long data_ctr;
+  SANE_Bool device_cancelled;
+  SANE_Int cancel_ctr;
+  SANE_Byte *transfer_buffer;
+  size_t bytes_read;
+  size_t bytes_remaining;
+  size_t bytes_in_buffer;
+  SANE_Byte *read_pointer;
+  Read_Buffer *read_buffer;
+  SANE_Byte threshold;
+
+  Lexmark_Model model;		/* per model data */
+  Lexmark_Sensor *sensor;
+  SANE_Byte shadow_regs[255];	/* shadow registers */
+  struct Channels offset;
+  struct Channels gain;
+  float *shading_coeff;
+}
+Lexmark_Device;
+
+/* Maximum transfer size */
+#define MAX_XFER_SIZE 0xFFC0
+
+/* motors and sensors type defines */
+#define X1100_MOTOR	1
+#define A920_MOTOR	2
+#define X74_MOTOR	3
+
+#define X1100_B2_SENSOR 4
+#define A920_SENSOR     5
+#define X1100_2C_SENSOR 6
+#define X1200_SENSOR    7	/* X1200 on USB 1.0 */
+#define X1200_USB2_SENSOR 8	/* X1200 on USB 2.0 */
+#define X74_SENSOR	9
+
+/* Non-static Function Proto-types (called by lexmark.c) */
+SANE_Status sanei_lexmark_low_init (Lexmark_Device * dev);
+void sanei_lexmark_low_destroy (Lexmark_Device * dev);
+SANE_Status sanei_lexmark_low_open_device (Lexmark_Device * dev);
+void sanei_lexmark_low_close_device (Lexmark_Device * dev);
+SANE_Bool sanei_lexmark_low_search_home_fwd (Lexmark_Device * dev);
+void sanei_lexmark_low_move_fwd (SANE_Int distance, Lexmark_Device * dev,
+				 SANE_Byte * regs);
+SANE_Bool sanei_lexmark_low_X74_search_home (Lexmark_Device * dev,
+					     SANE_Byte * regs);
+SANE_Bool sanei_lexmark_low_search_home_bwd (Lexmark_Device * dev);
+SANE_Int sanei_lexmark_low_find_start_line (Lexmark_Device * dev);
+SANE_Status sanei_lexmark_low_set_scan_regs (Lexmark_Device * dev,
+					     SANE_Int resolution,
+					     SANE_Int offset,
+					     SANE_Bool calibrated);
+SANE_Status sanei_lexmark_low_start_scan (Lexmark_Device * dev);
+long sanei_lexmark_low_read_scan_data (SANE_Byte * data, SANE_Int size,
+				       Lexmark_Device * dev);
+SANE_Status sanei_lexmark_low_assign_model (Lexmark_Device * dev,
+					    SANE_String_Const devname,
+					    SANE_Int vendor, SANE_Int product,
+					    SANE_Byte mainboard);
+
+/*
+ * scanner calibration functions
+ */
+SANE_Status sanei_lexmark_low_offset_calibration (Lexmark_Device * dev);
+SANE_Status sanei_lexmark_low_gain_calibration (Lexmark_Device * dev);
+SANE_Status sanei_lexmark_low_shading_calibration (Lexmark_Device * dev);
+SANE_Status sanei_lexmark_low_calibration (Lexmark_Device * dev);
+
+#endif /* LEXMARK_H */