ft245_duplex.h

/************************************************************************//**
 *
 * \file ft245_duplex.h
 * \brief FTDI FT245 synchronous fifo interface
 * \author marc at pignat dot org
 *
 ****************************************************************************
 *
 * Copyright 2015,2016 Marc Pignat
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 		http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ***************************************************************************/

#ifndef FT245_DUPLEX_H
#define FT245_DUPLEX_H

#include <libftdi1/ftdi.h>
#include <libusb-1.0/libusb.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef int (ftdi_duplex_rx_cb)(uint8_t *buffer, int length, void *userdata);

struct ftdi_duplex_context
{
	struct ftdi_context *ftdi;
	ftdi_duplex_rx_cb *rx_cb;
	void *cb_data;
	int pkt_size;
	int status;
	int nr_rx;
	int stop;
	struct libusb_transfer **rx_xfers;
};

struct ftdi_duplex_context *ftdi_duplex_start(struct ftdi_context *ftdi,
				ftdi_duplex_rx_cb *rx_cb, void *cb_data,
				int pkt_per_xfer, int nr_rx);

int ftdi_duplex_poll(struct ftdi_duplex_context *duplex);
int ftdi_duplex_stop(struct ftdi_duplex_context *duplex);

int ftdi_duplex_write(struct ftdi_duplex_context *duplex, const char *data, int len);

#ifdef __cplusplus
}
#endif

#endif /* FT245_DUPLEX_H */