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Diffstat (limited to 'backend/tamarack.h')
| -rw-r--r-- | backend/tamarack.h | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/backend/tamarack.h b/backend/tamarack.h new file mode 100644 index 0000000..65697ac --- /dev/null +++ b/backend/tamarack.h @@ -0,0 +1,267 @@ +/* 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 */ |