text: /*	$OpenBSD: scsi_scanner.h,v 1.10 2005/12/10 01:30:13 deraadt Exp $	*/
  
  /*
   * Copyright (c) 1995 Kenneth Stailey.  All rights reserved.
   *   modified for configurable scanner support by Joachim Koenig
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by Kenneth Stailey.
   * 4. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  /*
   * SCSI scanner interface description
   */
  
  #ifndef	_SCSI_SCANNER_H_
  #define _SCSI_SCANNER_H_
  
  /* SCSI scanner commands */
  #define GET_IMAGE_STATUS	0x0f
  #define WRITE_BIG		0x2a
  #define OBJECT_POSITION		0x31
  
  /* generic scanner command formats */
  
  struct scsi_r_scanner {
  #define	READ_BIG		0x28
  	u_int8_t opcode;
  	u_int    lun:3;
  	u_int    res1:5;
  	u_int8_t code;
  	u_int8_t res2;
  	u_int8_t qualifier;
  	u_int8_t len[3];
  	u_int8_t control;
  };
  
  struct scsi_get_buffer_status {
  #define GET_BUFFER_STATUS	0x34
  	u_int8_t opcode;
  	u_int	 lun:3;
  	u_int    res1:4;
  	u_int    wait:1;
  	u_int8_t res2[5];
  	u_int8_t len[2];
  	u_int8_t control;
  };
  
  struct scsi_rw_scanner {
  #define	READ			0x08
  #define WRITE			0x0a
  	u_int8_t opcode;
  	u_int8_t byte2;
  #define	SRW_FIXED		0x01
  	u_int8_t len[3];
  	u_int8_t control;
  };
  
  struct scsi_start_stop {
  #define START_STOP	0x1b
  	u_int8_t opcode;
  	u_int8_t byte2;
  	u_int8_t unused[2];
  	u_int8_t how;
  #define	SSS_STOP		0x00
  #define	SSS_START		0x01
  #define	SSS_LOEJ		0x02
  	u_int8_t control;
  };
  
  struct scsi_set_window {
  #define SET_WINDOW		0x24 /* set params of image area and windows */
  #define GET_WINDOW		0x25
  	u_int8_t opcode;
  	u_int8_t byte2;
  	u_int8_t reserved[4];
  	u_int8_t len[3];
  	u_int8_t control;
  };
  
  struct scsi_window_data {
  	u_int8_t reserved[6];		/* window header */
  	u_int8_t window_desc_len[2];	/* ditto */
  	u_int8_t window_id;		/* must be zero */
  	u_int    res1:7;
  	u_int    auto_bit:1;
  	u_int8_t x_res[2];
  	u_int8_t y_res[2];
  	u_int8_t x_org[4];
  	u_int8_t y_org[4];
  	u_int8_t width[4];
  	u_int8_t length[4];
  	u_int8_t brightness;
  	u_int8_t threshold;
  	u_int8_t contrast;
  	u_int8_t image_comp;		/* image composition (data type) */
  	u_int8_t bits_per_pixel;
  	u_int8_t halftone_pattern[2];
  	u_int    rif:1;			/* reverse image format (mono negative) */
  	u_int    res2:4;
  	u_int    pad_type:3;
  	u_int8_t bit_ordering[2];
  	u_int8_t compression_type;
  	u_int8_t compression_arg;
  	u_int8_t res3[6];
  };
  
  /* mustek scsi commands */
  
  #define MUSTEK_SET_WINDOW	0x04	/* set image area and windows */
  #define MUSTEK_ADF		0x10	/* ADF and backtracking selection */
  #define MUSTEK_LUT		0x55	/* look up table download */
  
  #endif /* _SCSI_SCANNER_H_ */
  