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/* sane - Scanner Access Now Easy.
Copyright (C) 1996, 1997 David Mosberger-Tang
Copyright (C) 1997 R.E.Wolff@BitWizard.nl
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.
*/
#ifndef tamarack_h
#define tamarack_h
#include <sys/types.h>
#define TAMARACK_FLAG_TA (1 << 3) /* transparency adapter */
enum Tamarack_Option
{
OPT_NUM_OPTS = 0,
OPT_MODE_GROUP,
OPT_MODE,
#define OPT_MODE_DEFAULT 2
OPT_RESOLUTION,
#define OPT_RESOLUTION_DEFAULT 100
#if 0
OPT_SPEED,
OPT_SOURCE,
OPT_BACKTRACK,
#endif
OPT_PREVIEW,
OPT_GRAY_PREVIEW,
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 */
OPT_ENHANCEMENT_GROUP,
OPT_TRANS,
OPT_BRIGHTNESS,
OPT_CONTRAST,
OPT_THRESHOLD,
#if 0
OPT_CUSTOM_GAMMA, /* use custom gamma tables? */
/* The gamma vectors MUST appear in the order gray, red, green,
blue. */
OPT_GAMMA_VECTOR,
OPT_GAMMA_VECTOR_R,
OPT_GAMMA_VECTOR_G,
OPT_GAMMA_VECTOR_B,
OPT_HALFTONE_DIMENSION,
OPT_HALFTONE_PATTERN,
#endif
/* must come last: */
NUM_OPTIONS
};
typedef struct Tamarack_Device
{
struct Tamarack_Device *next;
SANE_Device sane;
SANE_Range dpi_range;
SANE_Range x_range;
SANE_Range y_range;
unsigned flags;
}
Tamarack_Device;
typedef struct Tamarack_Scanner
{
/* all the state needed to define a scan request: */
struct Tamarack_Scanner *next;
SANE_Option_Descriptor opt[NUM_OPTIONS];
Option_Value val[NUM_OPTIONS];
SANE_Int gamma_table[4][256];
#if 0
SANE_Int halftone_pattern[64];
#endif
int scanning;
int pass; /* pass number */
int line; /* current line number */
SANE_Parameters params;
/* Parsed option values and variables that are valid only during
actual scanning: */
int mode;
#if 0
int one_pass_color_scan;
int resolution_code;
#endif
int fd; /* SCSI filedescriptor */
SANE_Pid reader_pid; /* process id of reader */
int pipe; /* pipe to reader process */
int reader_pipe; /* pipe from reader process */
/* scanner dependent/low-level state: */
Tamarack_Device *hw;
#if 0
/* line-distance correction related state: */
struct
{
int max_value;
int peak_res;
struct
{
int dist; /* line distance */
int Qk;
}
c[3];
/* these are used in the MLD_MFS mode only: */
char *red_buf;
char *green_buf;
}
ld;
#endif
}
Tamarack_Scanner;
#define TAM_ADF_ON 0x80
#define TAM_DOUBLE_ON 0x40
#define TAM_TRANS_ON 0x20
#define TAM_INVERSE_ON 0x20
#define THRESHOLDED 0
#define DITHERED 1
#define GREYSCALE 2
#define TRUECOLOR 3
/* Some Tamarack driver internal defines */
#define WINID 0
/* SCSI commands that the Tamarack scanners understand: */
#define TAMARACK_SCSI_TEST_UNIT_READY 0x00
#define TAMARACK_SCSI_INQUIRY 0x12
#define TAMARACK_SCSI_MODE_SELECT 0x15
#define TAMARACK_SCSI_START_STOP 0x1b
#define TAMARACK_SCSI_AREA_AND_WINDOWS 0x24
#define TAMARACK_SCSI_READ_SCANNED_DATA 0x28
#define TAMARACK_SCSI_GET_DATA_STATUS 0x34
/* The structures that you have to send to the tamarack to get it to
do various stuff... */
struct win_desc_header {
unsigned char pad0[6];
unsigned char wpll[2];
};
struct win_desc_block {
unsigned char winid;
unsigned char pad0;
unsigned char xres[2];
unsigned char yres[2];
unsigned char ulx[4];
unsigned char uly[4];
unsigned char width[4];
unsigned char length[4];
unsigned char brightness;
unsigned char thresh;
unsigned char contrast;
unsigned char image_comp;
unsigned char bpp;
unsigned char halftone[2];
unsigned char pad_type;
unsigned char exposure;
unsigned char pad3;
unsigned char compr_type;
unsigned char pad4[5];
};
struct command_header {
unsigned char opc;
unsigned char pad0[3];
unsigned char len;
unsigned char pad1;
};
struct command_header_10 {
unsigned char opc;
unsigned char pad0[5];
unsigned char len[3];
unsigned char pad1;
};
struct def_win_par {
struct command_header_10 dwph;
struct win_desc_header wdh;
struct win_desc_block wdb;
};
struct page_header{
char pad0[4];
char code;
char length;
};
struct tamarack_page {
char gamma;
unsigned char thresh;
unsigned char masks;
char delay;
char features;
char pad0;
};
/* set SCSI highended variables. Declare them as an array of chars */
/* endianness-safe, int-size safe... */
#define set_double(var,val) var[0] = ((val) >> 8) & 0xff; \
var[1] = ((val) ) & 0xff;
#define set_triple(var,val) var[0] = ((val) >> 16) & 0xff; \
var[1] = ((val) >> 8 ) & 0xff; \
var[2] = ((val) ) & 0xff;
#define set_quad(var,val) var[0] = ((val) >> 24) & 0xff; \
var[1] = ((val) >> 16) & 0xff; \
var[2] = ((val) >> 8 ) & 0xff; \
var[3] = ((val) ) & 0xff;
#endif /* tamarack_h */
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