libsigrok/hardware/ikalogic-scanaplus/protocol.h

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBSIGROK_HARDWARE_IKALOGIC_SCANAPLUS_PROTOCOL_H
#define LIBSIGROK_HARDWARE_IKALOGIC_SCANAPLUS_PROTOCOL_H
#include <stdint.h>
#include <string.h>
#include <glib.h>
#include <ftdi.h>
#include "libsigrok.h"
#include "libsigrok-internal.h"
/* Message logging helpers with subsystem-specific prefix string. */
#define LOG_PREFIX "scanaplus: "
#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
#define COMPRESSED_BUF_SIZE (64 * 1024)
/* Private, per-device-instance driver context. */
struct dev_context {
/** FTDI device context (used by libftdi). */
struct ftdi_context *ftdic;
/** The current sampling limit (in ms). */
uint64_t limit_msec;
/** The current sampling limit (in number of samples). */
uint64_t limit_samples;
void *cb_data;
uint8_t *compressed_buf;
uint64_t compressed_bytes_ignored;
uint8_t *sample_buf;
uint64_t bytes_received;
uint64_t samples_sent;
/** ScanaPLUS unique device ID (3 bytes). */
uint8_t devid[3];
};
SR_PRIV int scanaplus_close(struct dev_context *devc);
SR_PRIV int scanaplus_get_device_id(struct dev_context *devc);
SR_PRIV int scanaplus_init(struct dev_context *devc);
SR_PRIV int scanaplus_start_acquisition(struct dev_context *devc);
SR_PRIV int scanaplus_receive_data(int fd, int revents, void *cb_data);
#endif