kopia lustrzana https://gitlab.com/sane-project/backends
179 wiersze
5.0 KiB
C
179 wiersze
5.0 KiB
C
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/* sane - Scanner Access Now Easy.
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(C) 2003 Henning Meier-Geinitz <henning@meier-geinitz.de>.
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Based on the mustek (SCSI) backend.
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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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This file implements a SANE backend for scanners based on the Mustek
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MA-1509 chipset. Currently the Mustek BearPaw 1200F is known to work.
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*/
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#ifndef ma1509_h
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#define ma1509_h
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#include "../include/sane/config.h"
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#include <sys/types.h>
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/* Some constants */
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#define INQ_LEN 0x60 /* Length of SCSI inquiry */
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#define MA1509_COMMAND_LENGTH 8
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#define MA1509_GAMMA_SIZE 1024
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#define MA1509_BUFFER_SIZE (1024 * 128)
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#define MA1509_WARMUP_TIME 30
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#ifndef PATH_MAX
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# define PATH_MAX 1024
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#endif
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#define MA1509_CONFIG_FILE "ma1509.conf"
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#define MM_PER_INCH 25.4
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/* Convenience macros */
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#if defined(MIN)
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#undef MIN
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#endif
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#if defined(MAX)
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#undef MAX
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#endif
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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/* Copy values to memory ('L' = little endian, 'B' = big endian */
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#define STORE16L(cp,v) \
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do { \
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int value = (v); \
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\
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*(cp)++ = (value >> 0) & 0xff; \
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*(cp)++ = (value >> 8) & 0xff; \
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} while (0)
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#define STORE16B(cp,v) \
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do { \
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int value = (v); \
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\
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*(cp)++ = (value >> 8) & 0xff; \
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*(cp)++ = (value >> 0) & 0xff; \
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} while (0)
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#define STORE32B(cp,v) \
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do { \
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long int value = (v); \
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\
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*(cp)++ = (value >> 24) & 0xff; \
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*(cp)++ = (value >> 16) & 0xff; \
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*(cp)++ = (value >> 8) & 0xff; \
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*(cp)++ = (value >> 0) & 0xff; \
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} while (0)
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/* declarations */
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enum Ma1509_Option
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{
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OPT_NUM_OPTS = 0,
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OPT_MODE_GROUP,
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OPT_MODE,
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OPT_RESOLUTION,
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OPT_SOURCE,
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OPT_PREVIEW,
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OPT_GEOMETRY_GROUP,
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OPT_TL_X, /* top-left x */
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OPT_TL_Y, /* top-left y */
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OPT_BR_X, /* bottom-right x */
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OPT_BR_Y, /* bottom-right y */
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OPT_ENHANCEMENT_GROUP,
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OPT_THRESHOLD,
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OPT_CUSTOM_GAMMA, /* use custom gamma tables? */
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OPT_GAMMA_VECTOR_R,
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OPT_GAMMA_VECTOR_G,
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OPT_GAMMA_VECTOR_B,
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/* must come last: */
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NUM_OPTIONS
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};
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typedef struct Ma1509_Device
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{
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struct Ma1509_Device *next;
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SANE_String name;
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SANE_Device sane;
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SANE_Bool has_ta;
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SANE_Bool has_adf;
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SANE_Range x_range;
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SANE_Range y_range;
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/* scan area when transparency adapter is used: */
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SANE_Range x_trans_range;
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SANE_Range y_trans_range;
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/* values actually used by scanner, not necessarily the desired! */
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SANE_Int bpl, ppl, lines;
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}
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Ma1509_Device;
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typedef struct Ma1509_Scanner
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{
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/* all the state needed to define a scan request: */
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struct Ma1509_Scanner *next;
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SANE_Option_Descriptor opt[NUM_OPTIONS];
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Option_Value val[NUM_OPTIONS];
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SANE_Bool scanning;
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SANE_Bool cancelled;
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SANE_Parameters params;
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/* Parsed option values and variables that are valid only during
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actual scanning: */
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int fd; /* filedescriptor */
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long start_time; /* at this time the scan started */
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long lamp_time; /* at this time the lamp was turned on */
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SANE_Word total_bytes; /* bytes read from scanner */
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SANE_Word read_bytes; /* bytes transmitted by sane_read */
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SANE_Int red_gamma_table[MA1509_GAMMA_SIZE];
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SANE_Int green_gamma_table[MA1509_GAMMA_SIZE];
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SANE_Int blue_gamma_table[MA1509_GAMMA_SIZE];
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SANE_Byte *buffer, *buffer_start;
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SANE_Int buffer_bytes;
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/* scanner dependent/low-level state: */
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Ma1509_Device *hw;
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}
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Ma1509_Scanner;
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#endif /* ma1509_h */
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