1 /* 2 * epsonds-ops.h - Epson ESC/I-2 driver. 3 * 4 * Copyright (C) 2015 Tower Technologies 5 * Author: Alessandro Zummo <a.zummo@towertech.it> 6 * 7 * This file is part of the SANE package. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation, version 2. 12 */ 13 14 extern void eds_dev_init(epsonds_device *dev); 15 extern SANE_Status eds_dev_post_init(struct epsonds_device *dev); 16 17 extern SANE_Bool eds_is_model(epsonds_device *dev, const char *model); 18 19 extern SANE_Status eds_add_resolution(epsonds_device *dev, int r); 20 extern SANE_Status eds_set_resolution_range(epsonds_device *dev, int min, int max); 21 extern void eds_set_fbf_area(epsonds_device *dev, int x, int y, int unit); 22 extern void eds_set_adf_area(epsonds_device *dev, int x, int y, int unit); 23 extern void eds_set_tpu_area(epsonds_device *dev, int x, int y, int unit); 24 25 extern SANE_Status eds_add_depth(epsonds_device *dev, SANE_Word depth); 26 extern SANE_Status eds_discover_capabilities(epsonds_scanner *s); 27 extern SANE_Status eds_set_extended_scanning_parameters(epsonds_scanner *s); 28 extern SANE_Status eds_set_scanning_parameters(epsonds_scanner *s); 29 extern void eds_setup_block_mode(epsonds_scanner *s); 30 extern SANE_Status eds_init_parameters(epsonds_scanner *s); 31 32 extern void eds_copy_image_from_ring(epsonds_scanner *s, SANE_Byte *data, SANE_Int max_length, 33 SANE_Int *length); 34 35 extern SANE_Status eds_ring_init(ring_buffer *ring, SANE_Int size); 36 extern SANE_Status eds_ring_write(ring_buffer *ring, SANE_Byte *buf, SANE_Int size); 37 extern SANE_Int eds_ring_read(ring_buffer *ring, SANE_Byte *buf, SANE_Int size); 38 extern SANE_Int eds_ring_skip(ring_buffer *ring, SANE_Int size); 39 extern SANE_Int eds_ring_avail(ring_buffer *ring); 40 extern void eds_ring_flush(ring_buffer *ring) ; 41 extern void eds_ring_destory(ring_buffer *ring) ; 42