Initial import of sane-backends version 1.0.24-1.2

1 files changed, 837 insertions, 0 deletions

diff --git a/backend/fujitsu.h b/backend/fujitsu.h
new file mode 100644
index 0000000..4c6804b
--- /dev/null
+++ b/backend/fujitsu.h
@@ -0,0 +1,837 @@
+#ifndef FUJITSU_H
+#define FUJITSU_H
+
+/* 
+ * Part of SANE - Scanner Access Now Easy.
+ * Please see opening comment in fujitsu.c
+ */
+
+/* ------------------------------------------------------------------------- 
+ * This option list has to contain all options for all scanners supported by
+ * this driver. If a certain scanner cannot handle a certain option, there's
+ * still the possibility to say so, later.
+ */
+enum fujitsu_Option
+{
+  OPT_NUM_OPTS = 0,
+
+  OPT_STANDARD_GROUP,
+  OPT_SOURCE, /*fb/adf/front/back/duplex*/
+  OPT_MODE,   /*mono/gray/color*/
+  OPT_RES,    /*a range or a list*/
+
+  OPT_GEOMETRY_GROUP,
+  OPT_PAGE_WIDTH,
+  OPT_PAGE_HEIGHT,
+  OPT_TL_X,
+  OPT_TL_Y,
+  OPT_BR_X,
+  OPT_BR_Y,
+
+  OPT_ENHANCEMENT_GROUP,
+  OPT_BRIGHTNESS,
+  OPT_CONTRAST,
+  OPT_GAMMA,
+  OPT_THRESHOLD,
+
+  /*IPC*/
+  OPT_RIF,
+  OPT_HT_TYPE,
+  OPT_HT_PATTERN,
+  OPT_OUTLINE,
+  OPT_EMPHASIS,
+  OPT_SEPARATION,
+  OPT_MIRRORING,
+  OPT_WL_FOLLOW,
+  OPT_IPC_MODE,
+
+  /*IPC/DTC*/
+  OPT_BP_FILTER,
+  OPT_SMOOTHING,
+  OPT_GAMMA_CURVE,
+  OPT_THRESHOLD_CURVE,
+  OPT_THRESHOLD_WHITE,
+  OPT_NOISE_REMOVAL,
+  OPT_MATRIX_5,
+  OPT_MATRIX_4,
+  OPT_MATRIX_3,
+  OPT_MATRIX_2,
+
+  /*IPC/SDTC*/
+  OPT_VARIANCE,
+
+  OPT_ADVANCED_GROUP,
+  OPT_AWD,
+  OPT_ALD,
+  OPT_COMPRESS,
+  OPT_COMPRESS_ARG,
+  OPT_DF_ACTION,
+  OPT_DF_SKEW,
+  OPT_DF_THICKNESS,
+  OPT_DF_LENGTH,
+  OPT_DF_DIFF,
+  OPT_DF_RECOVERY,
+  OPT_PAPER_PROTECT,
+  OPT_STAPLE_DETECT,
+  OPT_BG_COLOR,
+  OPT_DROPOUT_COLOR,
+  OPT_BUFF_MODE,
+  OPT_PREPICK,
+  OPT_OVERSCAN,
+  OPT_SLEEP_TIME,
+  OPT_DUPLEX_OFFSET,
+  OPT_GREEN_OFFSET,
+  OPT_BLUE_OFFSET,
+  OPT_LOW_MEM,
+  OPT_SIDE,
+  OPT_HWDESKEWCROP,
+  OPT_SWDESKEW,
+  OPT_SWDESPECK,
+  OPT_SWCROP,
+  OPT_SWSKIP,
+
+  OPT_ENDORSER_GROUP,
+  OPT_ENDORSER,
+  OPT_ENDORSER_BITS,
+  OPT_ENDORSER_VAL,
+  OPT_ENDORSER_STEP,
+  OPT_ENDORSER_Y,
+  OPT_ENDORSER_FONT,
+  OPT_ENDORSER_DIR,
+  OPT_ENDORSER_SIDE,
+  OPT_ENDORSER_STRING,
+
+  OPT_SENSOR_GROUP,
+  OPT_TOP,
+  OPT_A3,
+  OPT_B4,
+  OPT_A4,
+  OPT_B5,
+  OPT_HOPPER,
+  OPT_OMR,
+  OPT_ADF_OPEN,
+  OPT_SLEEP,
+  OPT_SEND_SW,
+  OPT_MANUAL_FEED,
+  OPT_SCAN_SW,
+  OPT_FUNCTION,
+  OPT_INK_EMPTY,
+  OPT_DOUBLE_FEED,
+  OPT_ERROR_CODE,
+  OPT_SKEW_ANGLE,
+  OPT_INK_REMAIN,
+  OPT_DUPLEX_SW,
+  OPT_DENSITY_SW,
+
+  /* must come last: */
+  NUM_OPTIONS
+};
+
+struct fujitsu
+{
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are set during init of scanner.                */
+  struct fujitsu *next;
+  char device_name[1024];             /* The name of the device from sanei */
+  int missing; 				/* used to mark unplugged scanners */
+
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are set during reading of config file.         */
+  int buffer_size;
+  int connection;               /* hardware interface type */
+
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are set during inquiry probing of the scanner. */
+  /* members in order found in scsi data...                                */
+  char vendor_name[9];          /* raw data as returned by SCSI inquiry.   */
+  char model_name[17];          /* raw data as returned by SCSI inquiry.   */
+  char version_name[5];         /* raw data as returned by SCSI inquiry.   */
+
+  int color_raster_offset;      /* offset between r and b scan line and    */
+                                /* between b and g scan line (0 or 4)      */
+
+  int duplex_raster_offset;     /* offset between front and rear page when */
+                                /* when scanning 3091 style duplex         */
+
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are set during std VPD probing of the scanner. */
+  /* members in order found in scsi data...                                */
+  int basic_x_res;
+  int basic_y_res;
+  int step_x_res[6]; /*one for each mode*/
+  int step_y_res[6]; /*one for each mode*/
+  int max_x_res;
+  int max_y_res;
+  int min_x_res;
+  int min_y_res;
+
+  int std_res[16]; /*some scanners only support a few resolutions*/
+
+  /* max scan size in pixels comes from scanner in basic res units */
+  int max_x_basic;
+  int max_y_basic;
+
+  int can_overflow;
+  int can_mode[6]; /* mode specific */
+
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are set during vndr VPD probing of the scanner */
+  /* members in order found in scsi data...                                */
+  int has_adf;
+  int has_flatbed;
+  int has_transparency;
+  int has_duplex;
+  int has_endorser_b;
+  int has_barcode;
+  int has_operator_panel;
+  int has_endorser_f;
+
+  int adbits;
+  int buffer_bytes;
+
+  /*supported scsi commands*/
+  int has_cmd_msen10;
+  int has_cmd_msel10;
+
+  int has_cmd_lsen;
+  int has_cmd_lsel;
+  int has_cmd_change;
+  int has_cmd_rbuff;
+  int has_cmd_wbuff;
+  int has_cmd_cav;
+  int has_cmd_comp;
+  int has_cmd_gdbs;
+
+  int has_cmd_op;
+  int has_cmd_send;
+  int has_cmd_read;
+  int has_cmd_gwin;
+  int has_cmd_swin;
+  int has_cmd_sdiag;
+  int has_cmd_rdiag;
+  int has_cmd_scan;
+  
+  int has_cmd_msen6;
+  int has_cmd_copy;
+  int has_cmd_rel;
+  int has_cmd_runit;
+  int has_cmd_msel6;
+  int has_cmd_inq;
+  int has_cmd_rs;
+  int has_cmd_tur;
+
+  /*FIXME: there are more vendor cmds? */
+  int has_cmd_subwindow;
+  int has_cmd_endorser;
+  int has_cmd_hw_status;
+  int has_cmd_hw_status_2;
+  int has_cmd_hw_status_3;
+  int has_cmd_scanner_ctl;
+  int has_cmd_device_restart;
+
+  /*FIXME: do we need the vendor window param list? */
+
+  int brightness_steps;
+  int threshold_steps;
+  int contrast_steps;
+
+  int num_internal_gamma;
+  int num_download_gamma;
+  int num_internal_dither;
+  int num_download_dither;
+
+  int has_df_recovery;
+  int has_paper_protect;
+  int has_staple_detect;
+
+  int has_rif;
+  int has_dtc;
+  int has_sdtc;
+  int has_outline;
+  int has_emphasis;
+  int has_autosep;
+  int has_mirroring;
+  int has_wl_follow;
+  int has_subwindow;
+  int has_diffusion;
+  int has_ipc3;
+  int has_rotation;
+  int has_hybrid_crop_deskew;
+
+  int has_comp_MH;
+  int has_comp_MR;
+  int has_comp_MMR;
+  int has_comp_JBIG;
+  int has_comp_JPG1;
+  int has_comp_JPG2;
+  int has_comp_JPG3;
+
+  /*FIXME: more endorser data? */
+  int endorser_type_f;
+  int endorser_type_b;
+
+  /*FIXME: barcode data? */
+
+  /* overscan size in pixels comes from scanner in basic res units */
+  int os_x_basic;
+  int os_y_basic;
+
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are gathered by mode_sense command     */
+
+  int has_MS_autocolor;
+  int has_MS_prepick;
+  int has_MS_sleep;
+  int has_MS_duplex;
+  int has_MS_rand;
+  int has_MS_bg;
+  int has_MS_df;
+  int has_MS_dropout; /* dropout color specified in mode select data */
+  int has_MS_buff;
+  int has_MS_auto;
+  int has_MS_lamp;
+  int has_MS_jobsep;
+
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are hard coded because they are not in vpd     */
+  /* this section replaces all the old 'switch (s->model)' code            */
+
+  /* the scan size in 1/1200th inches, NOT basic_units or sane units */
+  int max_x;
+  int max_y;
+  int min_x;
+  int min_y;
+  int max_x_fb;
+  int max_y_fb;
+
+  int has_back;         /* not all duplex scanners can do adf back side only */
+  int color_interlace;  /* different models interlace colors differently     */
+  int duplex_interlace; /* different models interlace sides differently      */
+  int jpeg_interlace;   /* different models interlace jpeg sides differently */
+  int cropping_mode;    /* lower-end scanners dont crop from paper size      */
+  int ghs_in_rs;
+  int window_gamma;
+  int endorser_string_len;
+  int has_pixelsize;
+
+  int broken_diag_serial;   /* some scanners are just plain borked */
+  int need_q_table;         /* some scanners wont work without these */
+  int need_diag_preread;    
+  int hopper_before_op;     /* some scanners dont like OP when hopper empty */
+  int no_wait_after_op;     /* some scanners dont like TUR after OP */
+
+  int has_vuid_mono;    /* mono set window data */
+  int has_vuid_3091;    /* 3091/2 set window data */
+  int has_vuid_color;   /* color set window data */
+
+  int reverse_by_mode[6]; /* mode specific */
+  int ppl_mod_by_mode[6]; /* mode specific scanline length limitation */
+
+  /* --------------------------------------------------------------------- */
+  /* immutable values which are set during serial number probing scanner   */
+  char serial_name[28];        /* 16 char model, ':', 10 byte serial, null */
+
+  /* --------------------------------------------------------------------- */
+  /* struct with pointers to device/vendor/model names, and a type value */
+  /* used to inform sane frontend about the device */
+  SANE_Device sane;
+
+  /* --------------------------------------------------------------------- */
+  /* changeable SANE_Option structs provide our interface to frontend.     */
+  /* some options require lists of strings or numbers, we keep them here   */
+  /* instead of in global vars so that they can differ for each scanner    */
+
+  /* long array of option structs */
+  SANE_Option_Descriptor opt[NUM_OPTIONS];
+
+  /*mode group*/
+  SANE_String_Const mode_list[7];
+  SANE_String_Const source_list[5];
+
+  SANE_Int res_list[17];
+  SANE_Range res_range;
+
+  /*geometry group*/
+  SANE_Range tl_x_range;
+  SANE_Range tl_y_range;
+  SANE_Range br_x_range;
+  SANE_Range br_y_range;
+  SANE_Range paper_x_range;
+  SANE_Range paper_y_range;
+
+  /*enhancement group*/
+  SANE_Range brightness_range;
+  SANE_Range contrast_range;
+  SANE_Range gamma_range;
+  SANE_Range threshold_range;
+
+  /*ipc group*/
+  SANE_String_Const ht_type_list[4];
+  SANE_Range ht_pattern_range;
+  SANE_Range emphasis_range;
+  SANE_String_Const wl_follow_list[4];
+  SANE_String_Const ipc_mode_list[4];
+  SANE_Range gamma_curve_range;
+  SANE_Range threshold_curve_range;
+  SANE_Range variance_range;
+
+  /*advanced group*/
+  SANE_String_Const compress_list[3];
+  SANE_Range compress_arg_range;
+  SANE_String_Const df_action_list[4];
+  SANE_String_Const df_diff_list[5];
+  SANE_String_Const df_recovery_list[4];
+  SANE_String_Const paper_protect_list[4];
+  SANE_String_Const staple_detect_list[4];
+  SANE_String_Const bg_color_list[4];
+  SANE_String_Const do_color_list[5];
+  SANE_String_Const lamp_color_list[5];
+  SANE_String_Const buff_mode_list[4];
+  SANE_String_Const prepick_list[4];
+  SANE_String_Const overscan_list[4];
+  SANE_Range sleep_time_range;
+  SANE_Range duplex_offset_range;
+  SANE_Range green_offset_range;
+  SANE_Range blue_offset_range;
+  SANE_Range swdespeck_range;
+  SANE_Range swskip_range;
+
+  /*endorser group*/
+  SANE_Range endorser_bits_range;
+  SANE_Range endorser_val_range;
+  SANE_Range endorser_step_range;
+  SANE_Range endorser_y_range;
+  SANE_String_Const endorser_font_list[6];
+  SANE_String_Const endorser_dir_list[3];
+  SANE_String_Const endorser_side_list[3];
+
+  /* --------------------------------------------------------------------- */
+  /* changeable vars to hold user input. modified by SANE_Options above    */
+
+  /*mode group*/
+  int u_mode;         /*color,lineart,etc*/
+  int source;         /*fb,adf front,adf duplex,etc*/
+  int resolution_x;   /* X resolution in dpi                       */
+  int resolution_y;   /* Y resolution in dpi                       */
+
+  /*geometry group*/
+  /* The desired size of the scan, all in 1/1200 inch */
+  int tl_x;
+  int tl_y;
+  int br_x;
+  int br_y;
+  int page_width;
+  int page_height;
+
+  /*enhancement group*/
+  int brightness;
+  int contrast;
+  double gamma;
+  int threshold;
+
+  /* ipc */
+  int rif;
+  int ht_type;
+  int ht_pattern;
+  int outline;
+  int emphasis;
+  int separation;
+  int mirroring;
+  int wl_follow;
+  int ipc_mode;
+
+  /* ipc_mode=DTC */
+  int bp_filter;
+  int smoothing;
+  int gamma_curve;
+  int threshold_curve;
+  int threshold_white;
+  int noise_removal;
+  int matrix_5;
+  int matrix_4;
+  int matrix_3;
+  int matrix_2;
+
+  /* ipc_mode = SDTC */
+  int variance;
+
+  /*advanced group*/
+  int awd;
+  int ald;
+  int compress;
+  int compress_arg;
+  int df_action;
+  int df_skew;
+  int df_thickness;
+  int df_length;
+  int df_diff;
+  int df_recovery;
+  int paper_protect;
+  int staple_detect;
+  int bg_color;
+  int dropout_color;
+  int buff_mode;
+  int prepick;
+  int overscan;
+  int lamp_color;
+  int sleep_time;
+  int duplex_offset;
+  int green_offset;
+  int blue_offset;
+  int low_mem;
+  int hwdeskewcrop;
+  int swdeskew;
+  int swdespeck;
+  int swcrop;
+  double swskip;
+
+  /*endorser group*/
+  int u_endorser;
+  int u_endorser_bits;
+  int u_endorser_val;
+  int u_endorser_step;
+  int u_endorser_y;
+  int u_endorser_font;
+  int u_endorser_dir;
+  int u_endorser_side;
+  char u_endorser_string[81]; /*max length, plus null byte*/
+
+  /* --------------------------------------------------------------------- */
+  /* values which are derived from setting the options above */
+  /* the user never directly modifies these */
+
+  int s_mode; /*color,lineart,etc: sent to scanner*/
+
+  /* this is defined in sane spec as a struct containing:
+	SANE_Frame format;
+	SANE_Bool last_frame;
+	SANE_Int lines;
+	SANE_Int depth; ( binary=1, gray=8, color=8 (!24) )
+	SANE_Int pixels_per_line;
+	SANE_Int bytes_per_line;
+  */
+  SANE_Parameters u_params;
+  SANE_Parameters s_params;
+
+  /* also keep a backup copy, in case the software enhancement code overwrites*/
+  SANE_Parameters u_params_bk;
+  SANE_Parameters s_params_bk;
+
+  /* --------------------------------------------------------------------- */
+  /* values which are set by scanning functions to keep track of pages, etc */
+  int started;
+  int reading;
+  int cancelled;
+  int side;
+
+  /* total to read/write */
+  int bytes_tot[2];
+
+  /* how far we have read */
+  int bytes_rx[2];
+  int lines_rx[2]; /*only used by 3091*/
+  int eof_rx[2];
+  int ili_rx[2];
+  int eom_rx;
+
+  /* how far we have written */
+  int bytes_tx[2];
+  int eof_tx[2];
+
+  /*size of buffers (can be smaller than above*/
+  int buff_tot[2];
+  int buff_rx[2];
+  int buff_tx[2];
+
+  unsigned char * buffers[2];
+
+  /* --------------------------------------------------------------------- */
+  /*hardware feature bookkeeping*/
+  int req_driv_crop;
+  int req_driv_lut;
+
+  /* --------------------------------------------------------------------- */
+  /* values used by the software enhancment code (deskew, crop, etc)       */
+  SANE_Status deskew_stat;
+  int deskew_vals[2];
+  double deskew_slope;
+
+  SANE_Status crop_stat;
+  int crop_vals[4];
+
+  /* --------------------------------------------------------------------- */
+  /* values used by the compression functions, esp. jpeg with duplex       */
+  int jpeg_stage;
+  int jpeg_ff_offset;
+  int jpeg_front_rst;
+  int jpeg_back_rst;
+  int jpeg_x_byte;
+
+  /* --------------------------------------------------------------------- */
+  /* values which used by the command and data sending functions (scsi/usb)*/
+  int fd;                      /* The scanner device file descriptor.     */
+  size_t rs_info;
+  int rs_eom;
+  int rs_ili;
+
+  /* --------------------------------------------------------------------- */
+  /* values which are used by the get hardware status command              */
+
+  int hw_top;
+  int hw_A3;
+  int hw_B4;
+  int hw_A4;
+  int hw_B5;
+
+  int hw_hopper;
+  int hw_omr;
+  int hw_adf_open;
+
+  int hw_sleep;
+  int hw_send_sw;
+  int hw_manual_feed;
+  int hw_scan_sw;
+
+  int hw_function;
+
+  int hw_ink_empty;
+  int hw_double_feed;
+
+  int hw_error_code;
+  int hw_skew_angle;
+  int hw_ink_remain;
+
+  int hw_duplex_sw;
+  int hw_density_sw;
+
+  /* values which are used to track the frontend's access to sensors  */
+  char hw_read[NUM_OPTIONS-OPT_TOP];
+};
+
+#define CONNECTION_SCSI   0 /* SCSI interface */
+#define CONNECTION_USB    1 /* USB interface */
+
+#define SIDE_FRONT 0
+#define SIDE_BACK 1
+
+#define SOURCE_FLATBED 0
+#define SOURCE_ADF_FRONT 1
+#define SOURCE_ADF_BACK 2
+#define SOURCE_ADF_DUPLEX 3
+
+#define COMP_NONE WD_cmp_NONE
+#define COMP_JPEG WD_cmp_JPG1
+
+#define JPEG_STAGE_HEAD 0
+#define JPEG_STAGE_SOF 1
+#define JPEG_STAGE_SOS 2
+#define JPEG_STAGE_FRONT 3
+#define JPEG_STAGE_BACK 4
+#define JPEG_STAGE_EOI 5
+
+/* these are same as scsi data to make code easier */
+#define MODE_LINEART WD_comp_LA
+#define MODE_HALFTONE WD_comp_HT
+#define MODE_GRAYSCALE WD_comp_GS
+#define MODE_COLOR_LINEART WD_comp_CL
+#define MODE_COLOR_HALFTONE WD_comp_CH
+#define MODE_COLOR WD_comp_CG
+
+/* these are same as dropout scsi data to make code easier */
+#define COLOR_DEFAULT 0
+#define COLOR_GREEN 8
+#define COLOR_RED 9
+#define COLOR_BLUE 11
+
+#define COLOR_WHITE 1
+#define COLOR_BLACK 2
+
+#define COLOR_INTERLACE_UNK 0
+#define COLOR_INTERLACE_RGB 1
+#define COLOR_INTERLACE_BGR 2
+#define COLOR_INTERLACE_RRGGBB 3
+#define COLOR_INTERLACE_3091 4
+
+#define DUPLEX_INTERLACE_ALT 0 
+#define DUPLEX_INTERLACE_NONE 1 
+#define DUPLEX_INTERLACE_3091 2 
+
+#define JPEG_INTERLACE_ALT 0 
+#define JPEG_INTERLACE_NONE 1 
+
+#define CROP_RELATIVE 0 
+#define CROP_ABSOLUTE 1 
+
+#define DF_DEFAULT 0
+#define DF_CONTINUE 1
+#define DF_STOP 2
+
+#define FONT_H  0
+#define FONT_HB 1
+#define FONT_HN 2
+#define FONT_V  3
+#define FONT_VB 4
+
+#define DIR_TTB 0
+#define DIR_BTT 1
+
+/* endorser type, same as scsi inquiry data */
+#define ET_OLD	0
+#define ET_30	1
+#define ET_40	2
+
+/* ------------------------------------------------------------------------- */
+
+#define MM_PER_UNIT_UNFIX SANE_UNFIX(SANE_FIX(MM_PER_INCH / 1200.0))
+#define MM_PER_UNIT_FIX SANE_FIX(SANE_UNFIX(SANE_FIX(MM_PER_INCH / 1200.0)))
+
+#define SCANNER_UNIT_TO_FIXED_MM(number) SANE_FIX((number) * MM_PER_UNIT_UNFIX)
+#define FIXED_MM_TO_SCANNER_UNIT(number) SANE_UNFIX(number) / MM_PER_UNIT_UNFIX
+
+#define FUJITSU_CONFIG_FILE "fujitsu.conf"
+
+#ifndef PATH_MAX
+#  define PATH_MAX 1024
+#endif
+
+/* ------------------------------------------------------------------------- */
+
+SANE_Status sane_init (SANE_Int * version_code, SANE_Auth_Callback authorize);
+
+SANE_Status sane_get_devices (const SANE_Device *** device_list,
+                              SANE_Bool local_only);
+
+SANE_Status sane_open (SANE_String_Const name, SANE_Handle * handle);
+
+SANE_Status sane_set_io_mode (SANE_Handle h, SANE_Bool non_blocking);
+
+SANE_Status sane_get_select_fd (SANE_Handle h, SANE_Int * fdp);
+
+const SANE_Option_Descriptor * sane_get_option_descriptor (SANE_Handle handle,
+                                                          SANE_Int option);
+
+SANE_Status sane_control_option (SANE_Handle handle, SANE_Int option,
+                                 SANE_Action action, void *val,
+                                 SANE_Int * info);
+
+SANE_Status sane_start (SANE_Handle handle);
+
+SANE_Status sane_get_parameters (SANE_Handle handle,
+                                 SANE_Parameters * params);
+
+SANE_Status sane_read (SANE_Handle handle, SANE_Byte * buf, SANE_Int max_len,
+                       SANE_Int * len);
+
+void sane_cancel (SANE_Handle h);
+
+void sane_close (SANE_Handle h);
+
+void sane_exit (void);
+
+/* ------------------------------------------------------------------------- */
+
+static SANE_Status attach_one_scsi (const char *name);
+static SANE_Status attach_one_usb (const char *name);
+static SANE_Status attach_one (const char *devicename, int connType);
+
+static SANE_Status connect_fd (struct fujitsu *s);
+static SANE_Status disconnect_fd (struct fujitsu *s);
+
+static SANE_Status sense_handler (int scsi_fd, u_char * result, void *arg);
+
+static SANE_Status init_inquire (struct fujitsu *s);
+static SANE_Status init_vpd (struct fujitsu *s);
+static SANE_Status init_ms (struct fujitsu *s);
+static SANE_Status init_model (struct fujitsu *s);
+static SANE_Status init_user (struct fujitsu *s);
+static SANE_Status init_options (struct fujitsu *scanner);
+static SANE_Status init_interlace (struct fujitsu *scanner);
+static SANE_Status init_serial (struct fujitsu *scanner);
+
+static SANE_Status
+do_cmd(struct fujitsu *s, int runRS, int shortTime,
+ unsigned char * cmdBuff, size_t cmdLen,
+ unsigned char * outBuff, size_t outLen,
+ unsigned char * inBuff, size_t * inLen
+);
+
+static SANE_Status
+do_scsi_cmd(struct fujitsu *s, int runRS, int shortTime,
+ unsigned char * cmdBuff, size_t cmdLen,
+ unsigned char * outBuff, size_t outLen,
+ unsigned char * inBuff, size_t * inLen
+);
+
+static SANE_Status
+do_usb_cmd(struct fujitsu *s, int runRS, int shortTime,
+ unsigned char * cmdBuff, size_t cmdLen,
+ unsigned char * outBuff, size_t outLen,
+ unsigned char * inBuff, size_t * inLen
+);
+
+static SANE_Status wait_scanner (struct fujitsu *s);
+
+static SANE_Status object_position (struct fujitsu *s, int i_load);
+
+static SANE_Status scanner_control (struct fujitsu *s, int function);
+static SANE_Status scanner_control_ric (struct fujitsu *s, int bytes, int side);
+
+static SANE_Status mode_select_df(struct fujitsu *s);
+
+static SANE_Status mode_select_dropout(struct fujitsu *s);
+
+static SANE_Status mode_select_bg(struct fujitsu *s);
+
+static SANE_Status mode_select_buff (struct fujitsu *s);
+
+static SANE_Status mode_select_prepick (struct fujitsu *s);
+
+static SANE_Status mode_select_auto (struct fujitsu *s);
+
+static SANE_Status set_sleep_mode(struct fujitsu *s);
+
+static int must_downsample (struct fujitsu *s);
+static int must_fully_buffer (struct fujitsu *s);
+static int get_page_width (struct fujitsu *s);
+static int get_page_height (struct fujitsu *s);
+
+static SANE_Status send_lut (struct fujitsu *s);
+static SANE_Status send_endorser (struct fujitsu *s);
+static SANE_Status endorser (struct fujitsu *s);
+static SANE_Status set_window (struct fujitsu *s);
+static SANE_Status get_pixelsize(struct fujitsu *s, int actual);
+
+static SANE_Status update_params (struct fujitsu *s);
+static SANE_Status update_u_params (struct fujitsu *s);
+static SANE_Status backup_params (struct fujitsu *s);
+static SANE_Status restore_params (struct fujitsu *s);
+static SANE_Status start_scan (struct fujitsu *s);
+
+static SANE_Status check_for_cancel(struct fujitsu *s);
+
+#ifdef SANE_FRAME_JPEG
+static SANE_Status read_from_JPEGduplex(struct fujitsu *s);
+#endif
+static SANE_Status read_from_3091duplex(struct fujitsu *s);
+static SANE_Status read_from_scanner(struct fujitsu *s, int side);
+
+static SANE_Status copy_3091(struct fujitsu *s, unsigned char * buf, int len, int side);
+static SANE_Status copy_buffer(struct fujitsu *s, unsigned char * buf, int len, int side);
+
+static SANE_Status read_from_buffer(struct fujitsu *s, SANE_Byte * buf, SANE_Int max_len, SANE_Int * len, int side);
+static SANE_Status downsample_from_buffer(struct fujitsu *s, SANE_Byte * buf, SANE_Int max_len, SANE_Int * len, int side);
+
+static SANE_Status setup_buffers (struct fujitsu *s);
+
+static SANE_Status get_hardware_status (struct fujitsu *s, SANE_Int option);
+
+static SANE_Status buffer_deskew(struct fujitsu *s, int side);
+static SANE_Status buffer_crop(struct fujitsu *s, int side);
+static SANE_Status buffer_despeck(struct fujitsu *s, int side);
+static int buffer_isblank(struct fujitsu *s, int side);
+
+static void hexdump (int level, char *comment, unsigned char *p, int l);
+
+static size_t maxStringSize (const SANE_String_Const strings[]);
+
+#endif /* FUJITSU_H */