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/*
* Prototypes for epson2 I/O functions
*
* Based on Kazuhiro Sasayama previous
* Work on epson.[ch] file from the SANE package.
* Please see those files for original copyrights.
*
* Copyright (C) 2006 Tower Technologies
* Author: Alessandro Zummo <a.zummo@towertech.it>
*
* 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, version 2.
*/
#ifndef epson2_io_h
#define epson2_io_h
extern unsigned int r_cmd_count;
extern unsigned int w_cmd_count;
SANE_Status e2_cmd_simple(Epson_Scanner * s, void *buf, size_t buf_size);
int e2_send(Epson_Scanner * s, void *buf, size_t buf_size,
size_t reply_len, SANE_Status * status);
ssize_t e2_recv(Epson_Scanner * s, void *buf, ssize_t buf_size,
SANE_Status * status);
SANE_Status
e2_txrx(Epson_Scanner * s, unsigned char *txbuf, size_t txlen,
unsigned char *rxbuf, size_t rxlen);
SANE_Status
e2_recv_info_block(Epson_Scanner * s, unsigned char *scanner_status,
size_t info_size, size_t * payload_size);
SANE_Status
e2_cmd_info_block(SANE_Handle handle, unsigned char *params,
unsigned char params_len, size_t reply_len,
unsigned char **buf, size_t * buf_len);
SANE_Status e2_ack(Epson_Scanner * s);
SANE_Status e2_ack_next(Epson_Scanner * s, size_t reply_len);
SANE_Status e2_cancel(Epson_Scanner * s);
SANE_Status
e2_esc_cmd(Epson_Scanner * s, unsigned char cmd, unsigned char val);
#endif /* epson2_io_h */
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